U.S. patent application number 12/563149 was filed with the patent office on 2010-03-25 for depilatory device.
Invention is credited to Tetsuro Hashiguchi, Tomoyuki Inoue.
Application Number | 20100076456 12/563149 |
Document ID | / |
Family ID | 41558870 |
Filed Date | 2010-03-25 |
United States Patent
Application |
20100076456 |
Kind Code |
A1 |
Inoue; Tomoyuki ; et
al. |
March 25, 2010 |
DEPILATORY DEVICE
Abstract
A depilatory device in this invention comprising a housing, a
plucking means, a pinching mechanism, and a plucking mechanism. The
plucking means includes a plucking cylinder which is supported to
the housing. The plucking cylinder carries a plurality of pinching
units at a circumference surface of the plucking cylinder. The
pinching unit is composed of a first blade and a second blade. At
least one of the first blade and the second blade is movable toward
and away from the other of the first blade and the second blade to
have an opened position and a pinch position. Each of the pinching
units has a hair introducing direction perpendicular to the gap
between the first blade and the second blade in the opened
position. The pinching mechanism is configured to provide the
opened position and the pinch position to the first blade and the
second blade. The plucking mechanism is configured to rotate the
plucking cylinder. The pinching units are arranged to have their
hair introducing directions which are inclined with respect to the
longitudinal axis as well as a circumferential direction of the
plucking cylinder.
Inventors: |
Inoue; Tomoyuki;
(Hikone-shi, JP) ; Hashiguchi; Tetsuro;
(Hikone-shi, JP) |
Correspondence
Address: |
Cheng Law Group, PLLC
1100 17th Street, N.W., Suite 503
Washington
DC
20036
US
|
Family ID: |
41558870 |
Appl. No.: |
12/563149 |
Filed: |
September 20, 2009 |
Current U.S.
Class: |
606/133 |
Current CPC
Class: |
A45D 26/0028
20130101 |
Class at
Publication: |
606/133 |
International
Class: |
A45D 26/00 20060101
A45D026/00 |
Foreign Application Data
Date |
Code |
Application Number |
Sep 22, 2008 |
JP |
2008-242923 |
Claims
1. A depilatory device for removal of human hairs comprising: a
housing formed at its upper end with a head; a plucking means which
includes a plucking cylinder supported to said head, said plucking
cylinder being driven to rotate about a longitudinal axis of said
plucking cylinder; said plucking cylinder carrying a plurality of
pinching units at a circumference surface of said plucking
cylinder, each pinching unit being composed of a first blade and a
second blade arranged in an opposed relation with each other, at
least one of said first blade and said second blade being movable
toward and away from the other of said first blade and said second
blade to move between an opened position and a pinch position, said
first blade and said second blade being configured to form a gap
therebetween in said opened position and being configured to close
the gap for pinching the hair in said gap between said first blade
and said second blade in said pinch position, each pinching unit
having a hair introducing direction perpendicular to a gap width of
said gap for introducing the hair between said first blade and said
second blade; a pinching mechanism being configured to move said at
least one of the first blade and the second blade between said
opened position and said pinch position; and a plucking mechanism
configured to rotate said plucking cylinder for plucking the hair
pinched by said first blade and said second blade; wherein said
pinching units are arranged to have their hair introducing
directions which are inclined with respect to said longitudinal
axis as well as a circumferential direction of said plucking
cylinder.
2. The depilatory device as set forth in claim 1, wherein said
pinching units are arranged along a direction parallel to said
longitudinal axis and spaced from each other in said longitudinal
axis.
3. The depilatory device as set forth in claim 1, wherein each of
said pinching units has a depilatory area between the first blade
and the second blade and along the circumferential surface so as to
have a pinching width along the longitudinal axis within depilatory
area, said plucking cylinder has a depilatory length along said
longitudinal axis, said pinching units are arranged within the
depilatory length, and a sum of said pinching widths being equal to
or larger than said depilatory length.
4. The depilatory device as set forth in claim 1, wherein said
pinching units are arranged in a plurality of rows spaced
circumferentially of said plucking cylinder and each row including
a plurality of said pinching units spaced from each other along
said longitudinal axis.
5. The depilatory device as set forth in claim 4, wherein said
pinching units in said row are staggered from the other pinching
units in the other adjacent rows.
6. The depilatory device as set forth in claim 4, wherein at least
one of said pinching units is disposed to have its hair introducing
direction which is differently inclined with respect to the other
pinching unit in same row.
7. The depilatory device as set forth in claim 4, wherein at least
one of said pinching unit is disposed to have its hair introducing
direction which is oppositely inclined with respect to the other
pinching unit in same row.
8. the depilatory device as set forth in claim 7, wherein said
pinching units on opposite lengthwise ends in same row has their
hair introducing directions which are oppositely oriented with
respect to each other.
9. The depilatory device as set forth in claim 7, wherein said
pinching units in said row is composed of a set of first pinching
units and a set of second pinching units, a set of said first
pinching units and a set of said second pinching units are arranged
in series, said first pinching units are arranged to have said hair
introducing direction which is oppositely oriented with respect to
said hair introducing direction of said second pinching units, and
the number of said first pinching units is equal to the number of
said second pinching units.
10. The depilatory device as set forth in claim 6, wherein each
said pinching unit has a leading end with respect to a rotation
direction of the plucking cylinder, and said pinching units being
disposed within each half length of the plucking cylinder to have
said leading end directed axially outwardly from a lengthwise
center of said plucking cylinder.
11. The depilatory device as set forth in claim 4, wherein said
plucking cylinder further carries a plurality of projections at
said circumferential surface, said projections are arranged between
said pinching units such that said pinching units and projections
are arranged in said row, said projection has a projection length
which extends along said circumferential surface and which is
inclined with respect to said hair introducing directions of the
adjacent pinching units in the same row.
12. The depilatory device as set forth in claim 1, wherein said
plucking means includes a plurality of said plucking cylinders, and
said plucking mechanism being configured to rotate all said
plucking cylinders in a same rotation direction.
13. The depilatory device as set forth in claim 1, wherein said
head includes a guard covering said plucking cylinder, said guard
having an opening through which said plucking cylinder is
exposed.
14. The depilatory device as set forth in claim 13, wherein said
opening is divided by a plurality of cross bars each of which
extends in an inclined manner with respect to the longitudinal axis
of said plucking cylinder as well as the circumferential
direction.
15. The depilatory device as set forth in claim 11, wherein said
pinching units in said row is composed of a set of first pinching
units and a set of second pinching units, each said pinching unit
has a leading end with respect to a rotation direction of the
plucking cylinder, each projection has a leading end with respect
to said rotation direction of the plucking cylinder, each of said
first pinching units and said second pinching units are disposed to
have their leading end directed axially outwardly from the
lengthwise center of said plucking cylinder, said projection
between the first pinching units and said projection between the
second pinching units are directed axially inwardly from the
lengthwise end of said plucking cylinder.
Description
TECHNICAL FIELD
[0001] This invention relates to a depilatory device for removal of
a user's hair, and especially for plucking the user's hair for
removal of the user's hair.
BACKGROUND ART
[0002] Japanese patent application publication No. 2006-524521A
(United States patent application publication No. US2006/0271071,
and PCT application publication No. WO2004/095973) discloses a
conventional plucking cylinder of a depilatory device. The
conventional depilatory device comprises a housing, the plucking
cylinder, a pinching mechanism, and a plucking mechanism. The
housing is formed at its one end with a head. The plucking cylinder
is supported to the head. The plucking cylinder carries a plurality
of pinching units. Each of the pinching units has a stationary
blade and a movable blade. Each of the stationary blade and the
movable blade has an inside surface. The movable blade is disposed
to have its inside surface in an opposed relation to the inside
surface of the stationary blade. The movable blade is configured to
be movable toward and away from the stationary blade. Therefore,
the movable blade is configured to be movable between a pinch
position and an opened position. The movable blade in the opened
position is spaced from the stationary blade to have a gap between
the movable blade and the stationary blade. Therefore, the movable
blade in the opened position is spaced from the stationary blade by
a gap width W defined by the gap. The movable blade in the pinch
position closes the gap. The pinching mechanism is configured to
the move the movable blade between the opened position and the
pinch position. Consequently, the inside surface of the movable
blade in the pinch position is cooperative with the inside surface
of the stationary blade to pinch the hair in the gap. The plucking
mechanism is configured to rotate the plucking cylinder in order to
rotate the stationary blade and the movable blade in the pinch
potion. Consequently, the plucking cylinder plucks the hair between
the stationary blade and the movable blade in the pinch position.
In this manner, the depilatory device removes the user's hair from
the user's skin.
[0003] Each of the pinching unit has a hair introducing direction.
The hair introducing direction is perpendicular to the gap width
and is perpendicular to a radial direction of the plucking
cylinder. That is, the pinching unit is arranged to have the
stationary blade and the movable blade with their lengths along the
circumferential direction. Therefore, the pinching unit has a
depilatory area having a width parallel to the axis of the plucking
cylinder and a length parallel to the circumferential direction of
the plucking cylinder. The gap between the stationary blade and the
movable blade is narrow. Consequently, the conventional depilatory
device is configured to pluck the user's hair in a narrow
depilatory area defined by the gap along the circumferential
direction of the plucking cylinder and the length of the first
blade and the second blade. Therefore, there is a necessity to use
the depilatory device many times in order to depilate the user's
hair
DISCLOSURE OF THE INVENTION
[0004] This invention is achieved to solve the above problem. An
object in this invention is to provide a depilatory device which is
configured to pluck the user's hair in a large depilatory area at
one time.
[0005] In order to solve the above problem, the depilatory device
for removal of human hairs in this invention comprises a housing, a
plucking means, a pinching mechanism, and a plucking mechanism. The
housing is formed at its upper end with a head. The plucking means
includes a plucking cylinder which is supported to the head. The
plucking cylinder is driven to rotate about a longitudinal axis of
the plucking cylinder. The plucking cylinder carries a plurality of
pinching units at a circumference surface of the plucking cylinder.
Each pinching unit is composed of a first blade and a second blade
which are arranged in an opposed relation with each other. At least
one of the first blade and the second blade is movable toward and
away from the other of the first blade and the second blade to move
between an opened position and a pinch position. The first blade
and the second blade in the opened position are configured to form
a gap between the first blade and the second blade. The first blade
and the second blade in the pinch position is configured to close
the gap for pinching the hair in the gap between the first blade
and the second blade. Each pinching unit has a hair introducing
direction which is perpendicular to a gap width of the gap for
introducing the hair between the first blade and the second blade.
Each pinching unit has the hair introducing direction which is
perpendicular to a radial direction of the plucking cylinder. A
pinching mechanism is configured to move the at least one of the
first blade and the second blade between the opened position and
the pinch position. The plucking mechanism is configured to rotate
the plucking cylinder for plucking the hair pinched to the first
blade and the second blade. The pinching units are arranged to have
their introducing directions. The hair introducing directions are
inclined with respect to the longitudinal axis as well as a
circumferential direction of the plucking cylinder.
[0006] With this configuration, each of the pinching units has a
depilatory area along the circumferential surface of the plucking
cylinder. The depilatory area is defined between the first blade
and the second blade. The depilatory area has a pinching width
along the longitudinal axis of the plucking cylinder, and has a
pinching length along the circumferential direction of the plucking
cylinder. The hair introducing direction is inclined with respect
to the circumferential direction of the plucking cylinder as well
as the longitudinal axis of the plucking cylinder. Therefore, the
pinching width of the pinching unit in this invention is larger
than the pinching width of the pinching unit which has pinching
length parallel to the circumferential direction of the plucking
cylinder. Therefore, with this configuration, the pinching unit is
configured to pinch the hairs in the large width. Consequently,
this configuration makes it possible for the depilatory device to
pluck the hairs from a large width along the plucking cylinder.
[0007] It is preferred that the pinching units are arranged along a
direction parallel to a longitudinal direction and spaced from each
other in said longitudinal axis.
[0008] In this case, the pinching units are configured to receive
the hairs from a broad length along the longitudinal axis of the
plucking cylinder. Therefore, the depilatory device is configured
to pluck a large amount of the hairs per one rotation of the
plucking cylinder. Therefore, this configuration makes it possible
to enhance an efficiency of plucking the hair from the skin in one
rotation of the plucking cylinder.
[0009] It is preferred that each of the pinching units has a
depilatory area which is defined between the first blade and the
second blade and which extends along the circumferential surface so
as to have a pinching width along the longitudinal axis within
depilatory area. The plucking cylinder has a depilatory length
along the longitudinal axis in the circumferential surface. The
pinching units are arranged within the depilatory length. A sum of
the pinching widths is equal to or larger than the depilatory
length.
[0010] In this case, the pinching units are configured to receive
the hair from a full depilation length along the longitudinal axis
of the plucking cylinder. Therefore, the depilatory device is
configured to pluck a large amount of the hair per one rotation of
the plucking cylinder.
[0011] It is preferred that the pinching units are arranged in a
plurality of rows spaced circumferentially of the plucking
cylinder. Each row includes a plurality of the pinching units which
are spaced from each other along the longitudinal axis.
[0012] It is also preferred that the pinching units in the row are
staggered from the other pinching units in the other adjacent
rows.
[0013] In this case, the depilatory device is configured to pluck a
large amount of the hair per one rotation of the plucking
cylinder.
[0014] It is preferred that at least one of said pinching units is
disposed to have its hair introducing direction which is
differently inclined with respect to that of the other pinching
units in same row.
[0015] In this case, the pinching units are configured to pinch the
hairs which are grown toward a various direction.
[0016] It is also preferred that at least one of the pinching unit
is disposed to have its introducing direction which is oppositely
inclined with respect to that of the other pinching unit in same
row.
[0017] It is more preferred that the pinching units on opposite
length ends in same row has their hair introducing directions which
are oppositely oriented with respect to each other.
[0018] In this case, the pinching units stretch the user's skin
according to the rotation of the plucking cylinder on the skin.
Consequently, the hairs are erected according to the plucking
cylinder which runs on the skin. As a result, the pinching units
pinch the hairs easily. Therefore, this configuration makes it
possible for the plucking cylinder to enhance efficiency of
plucking the hairs.
[0019] It is preferred that the pinching units are composed of a
set of first pinching units and a set of second pinching units. A
set of the first pinching units is arranged in series with a set of
the second pinching units. The first pinching units are arranged to
have said hair introducing direction which is oppositely oriented
with respect to said hair introducing direction of said second
pinching units. The number of said first pinching units is equal to
the number of said second pinching units.
[0020] It is more preferred that each said pinching units has a
leading end with respect to a rotation direction of the plucking
cylinder. The pinching units are disposed within each half length
of the plucking cylinder to have the leading ends directed axially
outwardly from the lengthwise center of the plucking cylinder.
[0021] In this case, the plucking cylinder stretches the skin
axially outwardly of plucking cylinder. Therefore, the plucking
cylinder is configured to stretch the skin uniformly such that the
pinching units erect the hair of the skin. That is, this
configuration also makes it possible for the plucking cylinder to
enhance efficiency of plucking the hairs.
[0022] It is preferred that the plucking cylinder further carries a
plurality of projections at the circumferential surface. The
projections are arranged between the pinching units such that the
pinching units and projections are arranged in the row. The
projection has a projection length. The projection length extends
along the circumferential surface, and is inclined with respect to
the introducing direction of the adjacent pinching units in the
same row.
[0023] The plucking cylinder with this configuration is urged to
the skin through the pinching units and the projections. That is,
the plucking cylinder applies the uniform pressure to an entire
axial length of the plucking cylinder.
[0024] It is preferred that the plucking means includes a plurality
of said plucking cylinders. The rotation mechanism is configured to
rotate all cylinders in a same rotation direction.
[0025] It is preferred that the head includes a guard covering said
plucking cylinder. The guard having an opening through which said
cylinder is exposed.
[0026] It is more preferred that the opening is divided by a
plurality of cross bars each of which extends in an inclined manner
with respect to the longitudinal axis of the plucking cylinder as
well as the circumferential direction of the plucking cylinder.
[0027] It is most preferred that the cross bars extends in parallel
with the introducing direction of adjacent one of said pinching
units.
[0028] In this case, the hairs which are inserted through the
opening is directed by the cross bars along a direction which is
parallel to the hair introducing direction of the pinching units.
The hairs directed parallel to the hair introducing direction is
easily pinched by the pinching units. Therefore, this configuration
makes it possible for the depilatory device to enhance the
efficiency of plucking the hairs.
[0029] It is more preferred that the pinching units in the row is
composed of a set of first pinching units and a set of second
pinching units. Each pinching unit has a leading end with respect
to a rotation direction of the plucking cylinder. Each projection
has a leading end with respect to the rotation direction of the
plucking cylinder. Each of the first pinching units and the second
pinching units are disposed to have their leading ends directed
axially outwardly from a lengthwise center of the plucking
cylinder. The projection between the first pinching units is
directed axially inwardly from the lengthwise end of the plucking
cylinder. The projection between the second pinching units is
directed axially inwardly from the lengthwise end of the plucking
cylinder.
[0030] In this case, the first pinching unit is cooperative with
the projection between the first pinching units to stretch the
skin. Similarly, the second pinching unit is cooperative with the
projection between the second pinching units to stretch the skin.
That is, the pinching units are cooperative with the projections to
stretch the skin. Therefore, the hairs of the skin are erected
according to the stretch of the skin. The erected hairs are easily
pinched by the pinching units. In this manner, this configuration
makes it possible for the plucking cylinder to enhance the
efficiency of pinching the hairs.
BRIEF DESCRIPTION OF THE DRAWINGS
[0031] FIG. 1(a) is a front view of a depilatory device in this
invention.
[0032] FIG. 1(b) is a top view of the depilatory device in this
invention.
[0033] FIG. 1(c) is a side cross-sectional view taken along the
line A-A of the depilatory device in this invention.
[0034] FIG. 1(d) is a front cross-sectional view taken along the
line B-B of the depilatory device in this invention.
[0035] FIG. 2(a) is a front view of a guard in this invention.
[0036] FIG. 2(b) is a top view of the guard in this invention.
[0037] FIG. 2(c) is a side cross-sectional view of the guard in
this invention.
[0038] FIG. 2(d) is a perspective view of the guard in this
invention.
[0039] FIG. 3 is a top view of the depilatory device without the
guard in this invention.
[0040] FIG. 4 is a perspective view of the plucking cylinder in
this invention.
[0041] FIG. 5(a) is a front view of the plucking cylinder in this
invention.
[0042] FIG. 5(b) is a side view of the plucking cylinder in this
invention.
[0043] FIG. 5(c) is a side cross-sectional view of the plucking
cylinder in this invention.
[0044] FIG. 6 is an exploded perspective view of the plucking
cylinder in this invention.
[0045] FIG. 7 is a front cross-sectional view taken along the line
C-C of the plucking cylinder in this invention.
[0046] FIG. 8 is a side cross-sectional view taken along the line
D-D of the plucking cylinder in this invention.
[0047] FIG. 9(a) is an arrangement of pinching units of the
plucking cylinder in this invention.
[0048] FIG. 9(b) shows pinching widths of the pinching units in
FIG. 9(a).
[0049] FIG. 9(c) shows a depilatory area of the pinching unit of
this invention.
BEST MODE FOR CARRYING OUT THE INVENTION
[0050] The depilatory device in this invention is explained with
attached drawings. FIG. 1(a), (b), (c), and (d) show the depilatory
device 1 in this invention. X direction indicated by arrow in FIG.
1(a) indicates a right direction of the depilatory device 1. Y
direction in FIG. 1(a) indicates an upper direction of the
depilatory device 1. In addition, components of reference numeral
with suffix letter of R are symmetrically formed with respect to
components of reference numeral with suffix letter of L. Therefore,
explanations of the components of the reference numerals with the
suffix letter of R are omitted by the explanation of the components
of the reference numeral with the suffix letter of L. Similarly,
explanations of motions of the components of the reference numeral
with the suffix letter of R is omitted by the explanations of
motions of the components of the reference numeral with the suffix
letter of L. As shown in FIG. 1(a) to FIG. 8, the depilatory device
1 comprises a housing 200, a pair of plucking cylinders 16,
actuation bars 39, gears 6, and a driving source 4.
[0051] As shown in FIG. 1(a) to FIG. (d), the housing 200 is
provided for housing a pair of the plucking cylinders 16, the
actuation bar 39, the gears 6, and the driving source 4. The
housing 200 includes a body 2 and a head 7 which is attached to an
upper end of the head 7. That is, the housing 200 is formed at its
upper end with the head 7. As shown in FIG. 1(a), the body 2 is
formed with a switch 3. The head 7 includes a guard 10 shown in
FIG. 2(a) to FIG. 2(d). The guard 10 is formed with a pair of
openings and cross bars 12 which divide the each opening into a
plurality of opening sections 13. The opening sections 13 are
provided for communicating an outside of the head 7 with an inside
of the head 7 and is provided for exposing the plucking cylinder 16
to the outside of the head 7. The cross bars 12 are provided for
suitable contact of the skin and the plucking cylinder 16. In
particular, the cross bars 12 in the left half of the guard 10 has
an inclination which is different from an inclination of the cross
bars 12 in the right half of the guard 10.
[0052] FIG. 6 is a perspective view of the plucking cylinders 16a
and 16b. The plucking cylinder 16a and the plucking cylinder 16b
are defined as the plucking means. It is noted that the plucking
cylinder 16b has components which is same as components of the
plucking cylinder 16a. Therefore, the explanation of the plucking
cylinders 16a and 16b are explained as the plucking cylinder 16.
The plucking cylinder 16 has a longitudinal axis, and has a length
along the longitudinal axis. The plucking cylinder 16 carries a
shaft 47, a plurality of pinching units 300L, 300R, holders 250L,
250R, 250C, support plates 40, and fixing pins 44. The shaft 47
extends through the center of the plucking cylinder 16 along the
longitudinal axis. Therefore, the plucking cylinder 16 is supported
to the head 7 by the shaft 47 to be rotatable about the
longitudinal axis such that the plucking cylinder 16 is driven to
rotate along a rotation direction T which is indicated by rotation
arrow in FIG. 4. In addition, the plucking cylinder 16 is exposed
to the outside of the head 7 through the opening 13. The plucking
cylinder 16 is formed to have six insertion holes 19. Each of the
insertion holes 19 extends through the plucking cylinder 16 along
the longitudinal axis. Each of the insertion holes 19 is parallel
to the longitudinal axis. Each of the insertion holes 19 is spaced
from the longitudinal axis of the plucking cylinder 16. The
insertion holes 19 are provided for receiving the actuation bar
36a, 36b, 36c, 36d, 36e and 36f. The insertion holes 19 are
revolved about the longitudinal axis of the plucking cylinder 16.
The plucking cylinder 16 is formed at its circumference surface
with six recesses 46 each of which is formed to have a rectangular
and each of which is arranged along the circumferential direction
of the plucking cylinder 16. As shown in FIG. 5(c), each of the
plucking cylinders 16 has one longitudinal axial end with a gear
17.
[0053] The pinching units 300L are disposed at a left half of the
plucking cylinder in FIG. 6. Each of the pinching units 300L has a
stationary plate 210L and a movable plate 220L.
[0054] The stationary plate 210L includes a pair of stationary
blades 23L, a coupling plate 22L, and guide plates 24L. The
coupling plate 22L is formed into flat, is formed to have a
parallelogram, and is formed with a hole 25. The coupling plate 22L
has one side coupled to a bottom end of the stationary blade 23L,
and has the other side opposite from the one side coupled to a
bottom end of the stationary blade 23L. The stationary blade 23L is
defined as a second blade. The stationary blade 23L has a length
along the one side of the coupling plate, a thickness, and a height
along a direction perpendicular to the coupling plate. The
stationary blades 23L are formed into flat. Therefore, the
stationary blade 23L has an inside face and an outside face which
is in an opposite relation to the inside face. The stationary blade
has one height end with an edge which is outwardly curved. The
stationary blade 23L has one length end with a leading end 233L and
the other length end with the trailing end 234L with respect to the
rotation direction T of the plucking cylinder 16. The leading end
233L is coupled to the guide plate 24L which extends toward a
direction inclined with respect to the length of the stationary
blade 23L.
[0055] The movable plate 220L has a movable blade 31L, a fulcrum
plate 33L, and a guide plate 32L. The movable blade 31L is defined
as a first blade. The movable blade 31L has a length, a thickness,
and a height. The movable blade 31L is formed into flat. The
movable blade 31L has an inside face and an outside face which is
opposite to the inside face. The inside face of the movable blade
31L is formed with a groove which extends along a length of the
movable blade. It is noted that the groove of the inside face of
the movable blade 31L is not shown in the illustrations. However in
FIG. 6, the movable blade 31R is has an inside face with a groove
35 which corresponds to the groove of the inside face of the
movable blade 31L. The movable blade 31L has one height end with an
edge which is outwardly curved. The movable blade 31L has a lower
end coupled to the fulcrum plate 33L which is formed with a hole 34
extending along the longitudinal axis of the plucking cylinder 16.
The movable blade 31L is cooperative with the stationary blade 23L
to pinch the user's hair of the skin. The movable blade 31L has one
length end with a leading end 243L and the other length end with a
trailing end 244L with respect to the rotation direction T of the
plucking cylinder 16. The leading end 243L is cooperative with the
leading end 233L to define a leading end of the pinching unit 300L.
The leading end 243L of the movable blade 31L is coupled to the
guide plate 32L which extends toward a direction inclined with
respect to the length of the movable blade 31L. It is noted that
the pinching units 300R are disposed at a right half of the
plucking cylinder. Each component of the pinching unit 300R is
formed to have a symmetrical form with respect to each component of
the pinching unit 300L.
[0056] The holder 250L is disposed at the left half of the plucking
cylinder shown in FIG. 6. The holder 250L includes a base plate
26L, a projection 28L, and a leg 29L. The base plate 26L is formed
into flat. The projection 28L is projected from an upper surface of
the base plate 26L. The projection 28L is formed to have a
projection length which extends along the circumferential surface
of the plucking cylinder 16. The projection 28L has one length end
with a leading end 288L and the other length end with a trailing
end with respect to the rotation direction of the plucking cylinder
16. The leg 29L extends toward a lower direction from a lower
surface of the base plate 26L. The leg 29L is formed with a hole
which is not shown and which passes through the longitudinal axis
of the plucking cylinder 16. It is noted that the holder 250R is
disposed at the right half the plucking cylinder 16. Furthermore,
the holder 250C is disposed at a center in longitudinal axis of the
plucking cylinder 16.
[0057] The support plates 40 are formed into rectangular shape to
have a length along the longitudinal axis of the plucking cylinder
16. The support plates 40 are disposed on the circumferential
surface of the plucking cylinder 16 such that each of the support
plate 40 covers the recess 46. Therefore, the support plate 40 is
arranged along the circumferential surface of the plucking cylinder
16. The support plate 40 is provided for mounting the stationary
plate 210L, 210R, the movable plate 220L, 220R and the holders
250L, 250C, 250R. The stationary blade 23L mounted on the support
plate 40 is located in an opposed relation to the movable blade
31L. In addition, the pinching units are mounted on the support
plate 40 and are arranged along the length of the support plate 40.
Consequently, as shown in FIG. 8, the plucking cylinder 16 carries
a plurality of the pinching units 300L and 300R at the
circumferential surface of the plucking cylinder 16. The pinching
units 300L are arranged in a plurality of rows 20. The rows 20 are
arranged along the circumferential direction of the plucking
cylinder 16, and are spaced circumferentially of the plucking
cylinder 16. The row 20 includes a plurality of the pinching units
300L, 300R. One of the pinching units 300L, 300R is spaced from the
other adjacent pinching units 300L, 300R. Therefore, the row
includes a plurality of the pinching units 300L, 300R which is
spaced from each other along said longitudinal axis. In particular,
the row 20 includes a set of the pinching units 300L and a set of
the pinching units 300R. A set of the pinching units 300L and a set
of the pinching units 300R are arranged in series.
[0058] The actuation bars 36a to 36f in FIG. 7 include a main bar
37, a pad 39 coupled to one end of the main bar 37, and a boss 399
coupled to the other end of the main bar 37. The main bar 37 has
its upper surface with notches 38 which is provided for receiving a
tip of the fulcrum plate 33L.
[0059] The actuation bars 36a to 36f are configured to receive
pressure from rollers 9 which are disposed at a tip of the head 7.
When the actuation bar 36a to 36f receives the pressure along the
longitudinal axis, the actuation bar 36 is moved into the insertion
hole 19. The actuation bars 36a to 36f are cooperative with the
roller 9 to define a pinching mechanism.
[0060] FIG. 7 shows the front cross-sectional view of the plucking
cylinder 16. As shown in FIG. 7, a spring 45 is disposed in the
recess 46. The actuation bars 36a to 36f are inserted into the
insertion hole 19 such that the boss 399 is inserted into one end
of the spring 45. In addition, when the actuation bars 36a to 36f
are inserted into the insertion hole 19, the notches 38 are exposed
through the recess 46. The recess 46 is covered by the support
plate 40, and subsequently the stationary plate 210L is mounted on
the support plate 40. The movable plate 220L is mounted on the
support plate such that the fulcrum plate 33L passes through the
opening of the stationary plate 210L. The fulcrum plate 33L which
is passed through the opening is disposed such that a lower end of
the fulcrum plate 33L is inserted into the notch 38. Consequently,
the movable blade 31L is disposed in an opposed relation to the
stationary blade 23L. In this way, the pinching units 300L are
arranged on the support plate 40 such that the pinching units 300L
are arranged along the length of the support plate 40. As shown in
FIG. 5(b), the pinching units 300L and 300R are respectively
attached to the plucking cylinder 16 by the fixing pin 44. In
addition, two pinching units 300L and two pinching units 300R are
mounted on the support plate 40. Therefore, the number of the
pinching units 300L is equal to the number of the pinching units
300R in the row. Furthermore, because the lower end of the fulcrum
plate 33L is inserted into the notch 38, the movable blade 31L is
configured to be movable toward and away from the stationary blade
23L. Therefore, the movable blade 31L is configured to be movable
between an opened position and a pinch position. The movable blade
31L in the opened position forms a gap between the stationary blade
23L and the movable blade 31L. Therefore, the movable blade 31L in
the opened position is spaced from the stationary blade 23L by a
gap width W. The movable blade 31L in the pinch position is
explained below. The stationary blade 23L has the inside face which
extends along the length of the stationary blade 23L. The inside
face of the stationary blade 23L is faced to the inside face of the
movable blade 31L. The inside face of the movable blade 31L extends
along the length of the movable blade 31L. Therefore, the movable
blade has the inside face which is located in an opposed relation
to the inside face of the stationary blade 23L. So, the inside
faces of the stationary blade 23L and the movable blade 31L have
length directions extending along the length of the stationary
blade 23L and the movable blade 31L, respectively. This length
direction extends along the circumferential surface of the plucking
cylinder 16. The stationary blade 23L is cooperative with the
movable blade 31L to pinch the hairs within the length of the
stationary blade 23L and the movable blade 31L in the pinch
position. Therefore, the length of the stationary blade 23L and the
movable blade 31L is defined as a pinching length.
[0061] Because the coupling plate 22L is formed to have the
parallelogram, the stationary blades 23L have the pinching length
along the circumferential surface of the plucking cylinder 16. In
addition, because the coupling plate 22L is formed to have the
parallelogram, the pinching length of the pinching unit 300L is
inclined with respect to the circumferential direction of the
plucking cylinder 16 as well as the longitudinal axis of the
plucking cylinder 16. Meanwhile, it is preferred that the pinching
unit is disposed to have the pinching length inclined at 12 degrees
to 13 degrees with respect to the circumferential direction of the
plucking cylinder 16. The gap between the movable blade 31L and the
stationary blade 23L receives the hairs along the pinching length.
Therefore, the length direction of the pinching length is defined
as a hair introducing direction HD for introducing the hairs into
the gap between the inside faces of the stationary blade 23L and
the movable blade 31L. This hair introducing direction is
perpendicular to the gap width of the gap between the stationary
blade 23L and the movable blade 31L. The hair introducing direction
which is parallel to the pinching length is inclined with respect
to the circumferential direction of the plucking cylinder 16 as
well as the longitudinal axis of the plucking cylinder 16.
Therefore, the hair introducing direction is inclined at 12 degrees
to 13 degrees with respect to the circumferential direction of the
plucking cylinder 16. However, the inclination angle of the hair
introducing direction with respect to the circumferential direction
is not limited to 12 degrees to 13 degrees. It is preferred that
the hair introducing direction is inclined at 30 degrees with
respect to the circumferential direction of the plucking cylinder
16.
[0062] In addition, as shown in FIG. 3, the pinching units 300L in
the left half of the plucking cylinder 16 has the hair introducing
direction which is oppositely inclined with respect to the hair
introducing direction of the pinching units 300R in the right half
of the plucking cylinder 16. In particular, the pinching units 300L
in the left half of the plucking cylinder 16 has the hair
introducing direction which is inclined with respect to the
circumferential direction such that the hair introducing direction
of the pinching units 300L is directed outward from a lengthwise
center of the plucking cylinder 16. Consequently, the pinching
units 300L has the leading end 233L which is located at an axially
outwardly of the plucking cylinder 16 than the trailing end 234L
Similarly, the pinching units 300R in the right half of the
plucking cylinder 16 has the hair introducing direction which is
inclined with respect to the circumferential direction such that
the hair introducing direction of the pinching units 300L is
directed outward from the lengthwise center of the plucking
cylinder 16. Consequently, the pinching units 300R has the leading
end 233R which is located at an axially outwardly of the plucking
cylinder 16 than the trailing end 234R. Accordingly the hair
introducing direction of the pinching units 300L are oppositely
directed to the hair introducing direction of the pinching units
300R.
[0063] Furthermore, the stationary blade 23L is cooperative with
the movable blade 31L to define a depilatory area D therebetween in
FIG. 9(c). The depilatory area is along the circumferential surface
of the plucking cylinder 16. The depilatory area D has a pinching
width S in FIG. 9(b) parallel to the longitudinal axis of the
plucking cylinder 16, and a pinching length along the length of the
movable blade 31L and the stationary blade 23L. The pinching width
S is defined by a distance between the leading end of the
stationary blade 23L and the trailing end of the movable blade
31L.
[0064] The holder 250L is mounted on the support plate 40 such that
the holder 250L is located between the stationary blades 23L.
Consequently, the projection 28L, 28R and 28C are carried by the
plucking cylinder 16 to be located on the circumferential surface
of the plucking cylinder 16. In addition, the coupling plate 22L is
interposed between the holder 250L and the support plate 40. The
projection 28L is arranged between the pinching units 300L.
Consequently, the projection 28L, 28C, 28R and pinching units 300L,
300R are arranged in the row. The projection 28L has the projection
length which is inclined with respect to the hair introducing
direction of the adjacent pinching units 300L. Therefore, the
projection 28L is arranged to have a leading end 288L with respect
to the rotation direction of the plucking cylinder 16. The
projection 28L is arranged to have the leading end 288L which is
directed axially inwardly from the lengthwise end of the plucking
cylinder 16.
[0065] The holder 250C is mounted on the support plate 40.
Consequently, the projection 28L is arranged between the pinching
unit 300L and the pinching unit 300R. Therefore, the projection 28C
has the projection length which is inclined with respect to the
hair introducing direction of the adjacent pinching unit 300L and
the adjacent pinching unit 300R. Subsequently, the fixing pin 44 is
inserted through the plucking cylinder 16 such that the fixing pin
44 passes through the holes 34 and the holes of the leg 29L, 29C,
29R. Consequently, the movable blade 31L swings about a tip of the
fulcrum plate 33L according to the movement of the actuation bar
36a. Consequently, the movable blade 31L swings about a tip of the
fulcrum plate 33L according to the movement of the actuation bar
36a.
[0066] In this manner, the pinching units 300L, 300R are disposed
on the circumferential surface of the plucking cylinder 16. In
particular, a set of the pinching units 300L is disposed on the
left half of the circumferential surface of the plucking cylinder
16. A set of the pinching units 300R is disposed on the right half
of the circumferential surface of the plucking cylinder 16. As
shown in FIG. 3, a pair of the plucking cylinder 16a and the
plucking cylinder 16b is supported to the head through the shaft 47
such that the longitudinal axis of the plucking cylinder 16a is
parallel to the longitudinal axis of the plucking cylinder 16b. The
plucking cylinders 16 are arranged along a direction perpendicular
to the length direction of the plucking cylinder 16. As shown in
FIG. 6, the stationary blade 210L and the movable blade 31L have
the length along the circumferential surface of the plucking
cylinder 16. When the actuation bar 36a to 36f is driven to
reciprocate along the longitudinal axis of the plucking cylinder
16, the movable blade 31L is swung about a tip of the fulcrum plate
33L. Therefore, according to the movement of the actuation bar 36a
to 36f along the longitudinal axis of the plucking cylinder 16, the
movable blade 31L is moved toward and away from the stationary
blade 23L about a tip of the fulcrum plate 33L. When the movable
blade 31L is moved away from the stationary blade 23L, the movable
blade 31L is moved into the opened position such that the movable
blade 31L is spaced from the stationary blade 23L. Therefore, in a
condition where the movable blade 31L is in the opened position,
the movable blade 31L is cooperative with the stationary blade 23L
to form the gap between the movable blade 31L and the stationary
blade 23L. On the other hand, when the movable blade 31L is moved
toward the stationary blade 23L, the movable blade 31L is moved
into the pinch position such that the movable blade 31L closes the
gap. Therefore, the stationary blade 23L is fixed to the plucking
cylinder 16. The movable blade 31L is configured to move relative
to the stationary blade 23L. FIG. 5(a) shows an arrangement of the
pinching units 300L, 300R on the circumferential surface of the
plucking cylinder 16. As shown in FIG. 5(a), the pinching units are
arranged on the circumferential surface of the plucking cylinder 16
such that the stationary blade 23L and the movable blade 31L has
their lengths inclined with respect to the longitudinal axis of the
plucking cylinder 16 as well as the circumferential direction of
the plucking cylinder 16. In addition, a plurality of the support
plates 40 is mounted at the circumferential surface of the plucking
cylinder 16. Therefore, the pinching units 300L, 300R are arranged
in a plurality of rows which are spaced circumferentially of the
plucking cylinder. Each row includes a plurality of the pinching
units which are spaced from each other along the longitudinal axis.
Therefore, the pinching units 300L, 300R are arranged along a
direction parallel to the longitudinal axis and spaced from each
other in said longitudinal axis. In addition, one row is offset
from the other adjacent rows in the longitudinal axis.
[0067] The gears 6 are provided for rotation of the plucking
cylinder 16. In particular, as shown in FIG. 1(c), one of the gears
6 is meshed with the gear 17 of each of the plucking cylinder 16.
Therefore, the plucking cylinder 16 is rotated according to the
rotation of the gears 6. In particular, both of the plucking
cylinders 16a and the plucking cylinder 16b are rotated in the same
rotation direction T.
[0068] The drive source 4 is provided for rotating one of the gears
17. The drive source 4 is such as a motor and a battery. The drive
source 4 is started upon the switch 3 being pressed.
[0069] The depilatory device 1 is operated as follows. To begin
with, the plucking cylinders 16 are urged against the user's skin
through the opening of the guard 10 of the head 7. Consequently,
the hairs are inserted into the head 7 through the opening with the
cross bars. Subsequently, the switch 3 is pressed. Upon the switch
3 is pressed, the battery starts supplying electrical power to the
motor 4. When the motor 4 is energized by the battery, the motor 4
rotates one of the gears 6 through a connecting shaft 400.
Therefore, rotation movement of the gears 6 is transmitted to the
plucking cylinders 16 through the gears 6. Accordingly, the
plucking cylinders 16 are rotated in the rotation direction T shown
in FIG. 4. In this way, the motor 4 activates gears in order to
rotate the plucking cylinder 16. Therefore, the gears 6 are
cooperative with the gear 17 to define a plucking mechanism. The
plucking cylinder 16 runs on the user's skin according to the
rotation of the plucking cylinder 16, thereby the depilatory device
1 moving toward a direction U. Therefore, the depilatory device 1
plucks the hairs in the depilatory area of the skin by one of the
plucking cylinder 16, and subsequently plucks the hairs in the
depilatory area of the skin again. In addition, the plucking
cylinder 16 carries the pinching units 300L. The leading ends 233L,
243L of the stationary blade 23L and the movable blade 31L are
respectively directed axially outwardly from the lengthwise center
of the plucking cylinder 16. Therefore, according to the rotation
of the plucking cylinder 16, the pinching units 300L are
cooperative with the pinching units 300R to stretch the user's
skin. Consequently, the hair in the skin is erected by the pinching
units 300L, 300R. The guide plates 32L and 24L guide the erected
hairs into the gap between the stationary blade 23L and the movable
blade 31L.
[0070] At this moment, the rollers 9 continuously apply the
pressure along the longitudinal axis to one of the pads 39 of the
actuation bars 36a to 36f which is located at the tip of the head
7. According to the pressure from the rollers 9, the actuation bar
36a is moved toward the inside of the plucking cylinder 16 along
the insertion hole 19. Upon the actuation bar 36a moving toward the
inside of the plucking cylinder 16, the movable blade 31L is swung
about the lower end of the fulcrum plate 33L. Therefore, according
to the movement of the actuation bar 36 toward the inside of the
plucking cylinder 16, the movable blade 31L is moved toward the
stationary blade 23L such that the gap between the movable blade
31L and the stationary blade 23L is closed. That is, the movable
blade 31L is moved into the pinch position. Therefore, the hairs in
the gap are pinched by the stationary blade 23L and the movable
blade 31L.
[0071] The motor 4 continuously rotates the plucking cylinder 16
along the rotation direction T. Therefore, the pinching units 300L
carried by the plucking cylinder 16 are rotated about the shaft 47
while pinching the user's hairs within the depilatory area.
Consequently, the plucking cylinder 16 plucks the user's hairs.
When the plucking cylinder 16 is rotated along the rotation
direction while the pinching unit 300L pinching the user's hairs,
the actuation bar 36a is moved from a tip of the head to the lower
end of the head 7. Therefore, according to the rotation of the
plucking cylinder 16, the pressure applied to the actuation bar 35a
from the rollers 9 is removed. Therefore, the spring 45 applies the
spring biases to the actuation bar 36a so that the actuation bars
36a is moved toward an outside of the plucking cylinder along the
longitudinal axis. Upon the actuation bars 36a to 36f are moved
toward the outside of the plucking cylinder 16 along the
longitudinal axis, the movable blade 31L is moved away from the
stationary blade 23L. That is, the movable blade 31L is moved into
the opened position. Consequently, the pinching units 23L release
the user's hair. In this manner, the rollers 9 apply the pressure
to the actuation bars 36a to 36f in order, and the plucking
cylinder continuously plucks the user's hairs. In addition, this
plucking cylinder 16 has the pinching units. The pinching units
300L, 300R are arranged in rows 20 which are arranged along the
circumferential direction. Therefore, the depilatory device 1 is
configured to pluck the hairs many times per one rotation.
Consequently, the depilatory device 1 is configured to pluck a
large amount of the hairs per one rotation of the plucking cylinder
16.
[0072] The depilatory device 1 in this invention has the pinching
units 300L which has a large pinching width. FIG. 9(a) shows a
development view of the plucking cylinder 16 with the pinching
units in the present invention. The pinching units are arranged in
the rows. The rows are arranged along the circumferential direction
of the plucking cylinder 16 such that the pinching units in the row
are staggered from the other pinching units in the other adjacent
rows. As shown in FIG. 9, the plucking cylinder has a depilatory
length L within which the pinching units 300L, 300R are arranged.
Each of the pinching units 300L, 300R has the depilatory area which
has the pinching width S which extending along the longitudinal
axis of the plucking cylinder 16. Therefore, a sum of the pinching
widths S is equal to the depilatory length. However, it is also
possible that a sum of the pinching widths is larger than the
depilatory length. Further, the pinching units 300L in the left
half of the plucking cylinder 16 has the hair introducing direction
which is differently inclined with respect to the hair introducing
direction of the pinching units 300R in the right half of the
plucking cylinder 16. Therefore, the pinching units 300L is
disposed to have the hair introducing direction which is
differently inclined with respect to the introducing direction of
the pinching units 300R in the same row. Therefore, the hairs which
are grown toward a various direction is received by the pinching
units 300L, 300R which have the hair introducing directions
differently inclined each other. Therefore, the depilatory device 1
in the present invention with the pinching units 300L, 300R is
capable of receiving the hairs which are grown toward a various
direction. That is, the depilatory device 1 in this invention has a
large depilation effect of removing the hairs.
[0073] As above mentioned, plucking cylinder 16 has the pinching
units which includes the stationary blade 23L, and the movable
blade 31L. Each of the stationary blade 23L and the movable blade
31L are arranged in an opposed relation to each other such that the
stationary blade 23L has the inside face which is faced with the
inside face of the movable blade 31L. Therefore, the stationary
blade 23L is cooperative with the movable blade 31L to define the
depilatory area. The depilatory area has the pinching length and
the pinching width. The pinching length is defined as the hair
introducing direction for introducing the hair into the gap between
the stationary blade 23L and the movable blade 31L. The pinching
width is defined by a distance between the leading end 233L of the
stationary blade 23L and the trailing end 244L of the movable blade
31L. The hair introducing direction is inclined with respect to the
circumferential direction of the plucking cylinder 16 and the
longitudinal axis of the plucking cylinder 16. Therefore, the
pinching width with this configuration is larger than the pinching
width of the pinching unit which has a stationary blade and a
movable blade which are parallel to the circumferential direction
of the plucking cylinder 16. Therefore, the depilatory device 1 in
this invention is configured to pluck the hairs from a large width
along the plucking cylinder 16.
[0074] Furthermore, each of the pinching units of the depilatory
device 1 in the present invention has the depilatory area along the
circumferential surface so as to have a pinching width along the
longitudinal axis within the depilatory area. The plucking cylinder
16 has the depilatory length along the longitudinal axis. The
pinching units are disposed within the depilatory length. A sum of
the pinching widths of all the pinching units 300L, 300R is equal
to or larger than said depilatory length. Consequently, the
depilatory device 1 in the present invention is configured to pluck
the hair over an entire length of the depilation length. Therefore,
there is no possibility for the depilatory device 1 in this
invention to leave the hairs of the skin where the plucking
cylinder rolls.
[0075] In addition, the pinching units 300L, 300R in the row are
staggered from the other pinching units 300L, 300R in adjacent
rows. Therefore, the depilatory device 1 in the present invention
is configured to pluck the hair over an entire length of the
depilation length.
[0076] Further, the pinching units 300L have the leading end with
respect to a rotation direction T. The pinching units 300L is
disposed within the left half length of the plucking cylinder 16 to
have the leading end directed axially outwardly from the lengthwise
center of the plucking cylinder. The pinching units 300R are
disposed within the right half length of the plucking cylinder 16
to have the leading end directed axially outwardly from the
lengthwise center of the plucking cylinder 16. Therefore, according
to the rotation of the plucking cylinder 16, the user's skin is
stretched by the pinching units 300L and the pinching units 300R.
When the skin is stretched by the pinching units 300L and 300R, the
hairs are erected. The erected hair is easily inserted into the gap
of the pinching units 300L, 300R. Therefore, the plucking cylinder
16 is configured to pluck the erected hairs easily.
[0077] Furthermore, the plucking cylinder 16a is supported to the
head with a predetermined mounting angle which is angularly
displaced from a mounting angle of plucking cylinder 16b. In
particular, the plucking cylinder 16a is supported to the head with
a mounting angle which is angularly displaced at 30 degrees from
the mounting angle of the plucking cylinder 16b. Consequently, this
configuration makes it possible for the depilatory device 1 to
pluck the hair many times.
[0078] In addition, the head includes a guard which covers the
plucking cylinder. The guard has an opening through which the
cylinder is exposed. The opening is divided by a plurality of cross
bars. Each of the cross bars is inclined with respect to the
longitudinal axis of the plucking cylinder, and also is inclined
with respect to the circumferential direction of the plucking
cylinder 16. That is, the cross bars is not parallel to the
circumferential direction of the plucking cylinder 16. Therefore,
the cross bars never cover the same portion of the skin
continuously according to the movement of the depilatory device 1.
Furthermore, it is preferred that the cross bars extends in
parallel with the hair introducing direction of adjacent one of the
pinching units. Consequently, the pinching units 300L, 300R easily
pinch the hairs which are directed by the cross bars 12 of the
guard 10.
[0079] In addition, the pinching units 300L has the leading end
243L which is directed axially outwardly from the lengthwise center
of the plucking cylinder 16. On the other hand, the projection 28L
is disposed between the pinching units 300L and has the leading end
288L which is directed axially inwardly from the lengthwise end of
the plucking cylinder 16. Therefore, the projection 28L is
cooperative with the pinching units 300L to stretch the skin.
Consequently, the projection 28L is cooperative with the pinching
units 300L to erect the hair of the skin, thereby the pinching
units easily pinching the erected hair.
* * * * *