U.S. patent application number 10/716760 was filed with the patent office on 2004-08-05 for nail clipper.
Invention is credited to Choi, Yong-Sik, Choi, Young-Sik.
Application Number | 20040148779 10/716760 |
Document ID | / |
Family ID | 32232781 |
Filed Date | 2004-08-05 |
United States Patent
Application |
20040148779 |
Kind Code |
A1 |
Choi, Young-Sik ; et
al. |
August 5, 2004 |
Nail clipper
Abstract
Disclosed is a nail clipper provided with cutting edges having a
curvature corresponding to a section and a curve of a nail, in
which a blade body can be replaced with one having suitable cutting
edges according to a shape and a size of a nail. In a nail clipper
according to one embodiment of the present invention, cutting edges
formed at one ends of upper and lower blades of a blade body are
curved with a first curvature to the one end of the blade body
while being bent with a second curvature with respect to the blade
body. In a nail clipper according to another embodiment of the
present invention, a blade body is removably received in a casing
and a lever for applying force to the blade body is coupled to the
casing. Since the blade body can be removably disposed in the
casing, thus, it is possible that one having cutting edges
corresponding to a size of the nail can be coupled to the casing,
instead of the blade body.
Inventors: |
Choi, Young-Sik;
(Gwangsan-gu, KR) ; Choi, Yong-Sik; (Hasang-dong,
KR) |
Correspondence
Address: |
MCKEE, VOORHEES & SEASE, P.L.C.
801 GRAND AVENUE
SUITE 3200
DES MOINES
IA
50309-2721
US
|
Family ID: |
32232781 |
Appl. No.: |
10/716760 |
Filed: |
November 19, 2003 |
Current U.S.
Class: |
30/28 ;
132/213.1 |
Current CPC
Class: |
A45D 29/02 20130101 |
Class at
Publication: |
030/028 ;
132/213.1 |
International
Class: |
A45D 029/00; A45D
024/34 |
Foreign Application Data
Date |
Code |
Application Number |
Nov 19, 2002 |
KR |
2002-71907 |
Nov 28, 2002 |
KR |
2002-74611 |
Claims
What is claimed is:
1. A nail clipper comprising: a blade body including an upper blade
having a cutting edge at an end thereof and a lower blade having a
cutting edge at an end thereof, of which the other end is joined to
the other end of the upper blade, the cutting edges, which are
provided at one ends of the upper blade and the lower blade of the
blade body, being bent toward the blade body with a first certain
curvature while being curved with reference to the blade body with
a second certain curvature; and a lever assembly which is
associated with the blade body at a position adjacent to one end of
the blade body, for applying force to the one end of the blade body
so that the cutting edge of the upper blade is engaged with that of
the lower blade.
2. The nail clipper as claimed in claim 1, wherein the first
curvature of the cutting edges which are respectively provided at
the one end of the upper and lower blades, corresponds to that of a
nail end.
3. The nail clipper as claimed in claim 1, wherein the second
curvature of the cutting edges which are respectively provided at
the one end of the upper and lower blades, corresponds to a
sectional curvature of a nail end.
4. A nail clipper comprising: a blade body including an upper blade
having a cutting edge at one end thereof and a lower blade having a
cutting edge at one end thereof, of which the other end is joined
to the other end of the upper blade; a casing for releasably
receiving the blade body; and a lever which is combined with the
casing adjacent to the one end of the blade body received in the
casing, for applying force to the one end of the blade body so that
the cutting edges of the upper and lower blades of the blade body
are engaged with each other.
5. The nail clipper as claimed in claim 4, wherein the blade body
has an aperture at the other end thereof.
6. The nail clipper as claimed in claim 5, wherein the lever
includes a body, a bent portion which is bent at a desired angle
with regard to the body, and a pair of protrusions respectively
extending at a desired length from both sides of the bent
portion.
7. The nail clipper as claimed in claim 6, wherein the casing
includes a bottom wall and a pair of sidewalls extending upwardly
from both sides of the bottom wall, the sidewalls respectively
having thru-holes adjacent to the one end thereof, the thru-holes
having a desired diameter, which are opposite to each other.
8. The nail clipper as claimed in claim 7, wherein the casing has a
cover at the other end thereof in order to protect the blade body
and the lever, the cover being pivotally installed to the casing
with respect to the casing.
9. The nail clipper as claimed in claim 8, wherein the sidewalls of
the casing respectively have a recess in order to receive the
protrusions extending from the sidewalls of the cover so as to fix
the cover to the casing.
10. The nail clipper as claimed in claim 7 or 8, wherein the lever
is combined with the casing in such a manner that the protrusions
respectively extending from the sidewalls of the bent portion are
inserted into the thru-holes respectively formed at the one end of
the casing.
11. The nail clipper as claimed in claim 6, wherein a pair of
protrusions extends at a desired distance from each other from a
front end of the bent portion of the lever, in order to remove the
blade body from the casing.
12. The nail clipper as claimed in claim 11, wherein the upper
blade of the blade body has a pair of rectangular grooves on an
upper surface thereof in order to receive the protrusions provided
at a front end of the bent portion of the lever.
13. The nail clipper as claimed in claim 12, wherein the
rectangular grooves which are formed on the upper surface of the
upper blade of the blade body, are divided by a plurality of
partitions having a slanted surface declined toward the cutting
edge.
14. The nail clipper as claimed in claim 6, wherein the casing has
a bottom wall, two sidewalls extending upwardly from both edges of
the bottom wall and a rear wall extending upwardly from a rear edge
of the bottom wall and being connected to the sidewalls, the
sidewalls respectively having a rectangular thru-hole at the one
ends thereof to receive the protrusions formed at both sides of the
bent portion of the lever respectively.
15. The nail clipper as claimed in claim 14, wherein the casing has
a fixing projection at a desired portion of the bottom wall, which
is inserted in the thru-hole formed at the other end of the blade
body so as to fix the blade body to the casing.
16. The nail clipper as claimed in claim 15, wherein the lever
coupled to the casing is able to slidably and reciprocally move
along the rectangular thru-hole formed in each sidewall of the
casing.
17. A nail clipper comprising: a blade body including an upper
blade having a cutting edge at one end thereof and a lower blade
having a cutting edge at one end thereof, of which the other end is
joined to the other end of the upper blade; and a casing which
receives the blade body, for applying force to the one end of the
blade body so that the cutting edges of the upper and lower blades
of the blade body bring into contact with each other.
18. The nail clipper as claimed in claim 17, wherein the casing
includes a bottom wall, sidewalls extending upwardly from both
sides of the bottom wall, a rear wall extending upwardly from a
rear end of the bottom wall to be connected with the sidewalls and
a traverse member extending between one ends of the sidewalls to
fix the blade body to the casing.
19. The nail clipper as claimed in claim 18, wherein the sidewalls
of the casing respectively have a rectangular shaped thru-hole at a
lower portion thereof.
20. The nail clipper as claimed in claim 19, wherein the casing
includes a lever disposed under the blade body to be able to
slidably and reciprocally move along the rectangular thru-hole, the
lever applying force to the one end of the blade body so that the
cutting edges of the upper and lower blade of the blade body bring
in contact with each other.
21. The nail clipper as claimed in claim 20, wherein the lever
includes a body having a slanted surface and protrusions extending
from each side of the body to be inserted into the rectangular
thru-hole formed in the sidewalls of the casing.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a nail clipper, and more
particularly to a nail clipper provided with cutting edges having a
curvature corresponding to a section and a curve of a nail, in
which a blade body can be replaced with one having suitable cutting
edges according to a shape and a size of a nail.
[0003] 2. Description of the Related Art
[0004] Generally, a nail clipper is used for cutting finger and toe
nails. Typical nail clipper is comprised of upper and lower blade
each having cutting edge and a lever for applying force to the
upper blade with respect to the lower blade so that the cutting
edges of the upper and lower blades bring into contact with each
other.
[0005] The cutting edges of the upper and lower blades of the nail
clipper typically have a shape with curvature corresponding to a
curve of a nail end. When user cuts nails with the nail clipper in
order to care the nails, therefore, the nails are cut with a
desired curvature by means of the cutting edges of the upper and
lower blade of the nail clipper.
[0006] U.S. Pat. No. 6,438,845, which is issued to Kook E. Jung on
Aug. 17, 2002, discloses a nail clipper device with a scissor-like
cutting configuration.
[0007] FIG. 1 is a perspective view of the nail clipper according
to Jung's Patent, and FIG. 2 is a side view of the nail clipper
according to the Jung's Patent shown in FIG. 1.
[0008] As shown in FIGS. 1 and 2, the nail clipper 10 comprises
elongated upper and lower operating members 12 and 14 each having
first ends joined together, and second ends terminating in spaced
complimentary shaped cutting edges, a post 18 secured to the lower
operating member 12 and movably extending through an aperture in
the upper member 14 adjacent the cutting edges, and a lever member
16 having first and second ends with the end beginning pivotally
secured to the post 18.
[0009] The lever member 16 is superimposed over the upper operating
member 14 in a non-operable position. Also, the lever member 16 has
a bent portion adjacent the post 18 so that the lever member is
first pivoted about the axis of the post 18 and pivoted in over the
post to an operating position.
[0010] The bent portion of the lever member 16 will bear against
the upper operating member to move the cutting edge. Each cutting
edge of the nail clipper 10 has slanted cutting surfaces and
complementary cutting surfaces that are moved adjacent to each
other.
[0011] The nail clipper 10 according to the Jung's Patent
constructed as described above has an advantage in that it can
easily cut thick and inflexible finger and toe nails.
[0012] In the nail clipper, however, since the cutting surfaces of
the cutting edges are in flat, there is a disadvantage in that it
is difficult to cut the nail along a curve of the nail when
performing to cut the nail. In the casing of a large nail, since
the nail is partially cut along the curve of the nail, especially,
there is a problem in that it is very difficult to smoothly cut the
nail at a time.
SUMMARY OF THE INVENTION
[0013] The present invention has developed to solve the foregoing
problems. It is a first object of the present invention to provide
a nail clipper having cutting edges with curvatures corresponding
to a sectional shape and curve of the nail.
[0014] It is a second object of the present invention to provide a
nail clipper in which a blade body can be replace with one having
suitable cutting edges corresponding to size and shape of
nails.
[0015] In order to achieve the first object of the present
invention, according to a first embodiment of the present
invention, there is provided a nail clipper comprising: a blade
body including an upper blade having a cutting edge at an end
thereof and a lower blade having a cutting edge at an end thereof,
of which the other end is joined to the other end of the upper
blade, the cutting edges, which are provided at one ends of the
upper blade and the lower blade of the blade body, being bent
toward the blade body with a first certain curvature while being
curved with reference to the blade body with a second certain
curvature; and a lever assembly which is associated with the blade
body at a position adjacent to one end of the blade body, for
applying force to the one end of the blade body so that the cutting
edge of the upper blade is engaged with that of the lower
blade.
[0016] The first curvature of the cutting edges which are
respectively provided at the one end of the upper and lower blades
corresponds to that of a nail end.
[0017] The second curvature of the cutting edges which are
respectively provided at the one end of the upper and lower blades
corresponds to a sectional curvature of a nail end.
[0018] In order to achieve the first object of the present
invention, according to a first embodiment of the present
invention, there is provided a nail clipper comprising: a blade
body including an upper blade having a cutting edge at one end
thereof and a lower blade having a cutting edge at one end thereof,
of which the other end is joined to the other end of the upper
blade; a casing for removably receiving the blade body; and a lever
which is combined with the casing adjacent to the one end of the
blade body received in the casing, for applying force to the one
end of the blade body so that the cutting edges of the upper and
lower blades of the blade body are engaged with each other.
[0019] The blade body has an aperture at the other end thereof.
[0020] The lever includes a body, a bent portion which is bent at a
desired angle with regard to the body, and a pair of protrusions
respectively extending at a desired length from both sides of the
bent portion.
[0021] The casing includes a bottom wall and a pair of sidewalls
extending upwardly from both sides of the bottom wall, the
sidewalls respectively having thru-holes adjacent to the one end
thereof, the thru-holes having a desired diameter, which are
opposite to each other.
[0022] The casing has a cover at the other end thereof in order to
protect the blade body and the lever, the cover being pivotally
installed to the casing with respect to the casing.
[0023] The sidewalls of the casing respectively have a recess in
order to receive the protrusions extending from the sidewalls of
the cover so as to fix the cover to the casing.
[0024] The lever is combined with the casing in such a manner that
the protrusions respectively extending from the sidewalls of the
bent portion are inserted into the thru-holes respectively formed
at the one end of the casing.
[0025] A pair of protrusions extends at a desired distance from
each other from a front end of the bent portion of the lever, in
order to remove the blade body from the casing.
[0026] The upper blade of the blade body has a pair of rectangular
grooves on an upper surface thereof in order to receive the
protrusions provided at a front end of the bent portion of the
lever.
[0027] The rectangular grooves which are formed on the upper
surface of the upper blade of the blade body are divided by a
plurality of partitions having a slanted surface declined toward
the cutting edge.
[0028] In the nail clipper according to the first embodiment of the
present invention constructed as described above, since the upper
and lower blade have the cutting edges with the first and second
curvatures corresponding to those of the nail end, there is an
advantage in that the nails can be smoothly cut by means of the
nails clipper with minimum cutting operation.
[0029] In the nail clipper according to the second embodiment of
the present invention constructed as described above, further,
Blade bodies respectively provided with a different cutting edge
from each other can be removably joined to the casing and the
cutting edges have several shape and size. Thus, there is an
advantage in that the suitable blade body can be selected and used
for cutting the nails according to the shape and size of the
nails.
BRIEF DESCRIPTION OF THE DRAWINGS
[0030] The above objects and advantages of the present invention
will become more apparent by describing in detail the preferred
embodiments thereof with reference to the attached drawings, in
which:
[0031] FIG. 1 is a perspective view of a nail clipper according to
the conventional art;
[0032] FIG. 2 is a side view of the nail clipper according to the
conventional art shown in FIG. 1;
[0033] FIG. 3 is a perspective view of a nail clipper according to
a first embodiment of the present invention;
[0034] FIG. 4 is a front view of the nail clipper according to the
first embodiment of the present invention shown in FIG. 3;
[0035] FIG. 5 is a plan view of the nail clipper according to the
first embodiment of the present invention shown in FIG. 3;
[0036] FIG. 6 is an exploded perspective view of a nail clipper
according to a second embodiment of the present invention;
[0037] FIG. 7 is a partially enlarged perspective view of the nail
clipper according to the second embodiment of the present invention
shown in FIG. 6, in which a lever removes a blade body from a
casing;
[0038] FIG. 8 is an exploded perspective view of a nail clipper
according to a third embodiment of the present invention;
[0039] FIG. 9 is an exploded perspective view of a nail clipper
according to a fourth embodiment of the present invention; and
[0040] FIG. 10 is a perspective view of the nail clipper according
to the fourth embodiment of the present invention shown in FIG. 9,
in which a blade body is joined to a casing that functions as a
lever.
DETAILED DESCRIPTION OF THE INVENTION
[0041] Hereinafter, a nail clipper according to the first
embodiment of the present invention will be described in more
detail with reference to the accompanying drawings.
[0042] FIG. 3 is a perspective view of the nail clipper 100
according to the first embodiment of the present invention, FIG. 4
is a front view of the nail clipper 100 according to the first
embodiment of the present invention shown in FIG. 3, and FIG. 5 is
a plan view of the nail clipper 100 according to the first
embodiment of the present invention shown in FIG. 3.
[0043] As shown in FIGS. 3 to 5, the nail clipper 100 according to
the first embodiment of the present invention comprises a blade
body 110 including an upper blade 112 having a cutting edge 112a at
an end thereof and a lower blade 114 having a cutting edge 114a at
an end thereof, of which the other end is joined to the other end
of the upper blade 112, the cutting edges 112a and 114a, which are
provided at one ends of the upper blade 112 and the lower blade 114
of the blade body 110, being bent toward the blade body 110 with a
first certain curvature while being curved with reference to the
blade body 110 with a second certain curvature; and a lever
assembly 120 which is associated with the blade body 110 at a
position adjacent to one end of the blade body 110, for applying
force to the one end of the blade body 110 so that the cutting edge
112a of the upper blade 112 is engaged with that of the lower blade
114.
[0044] The upper and lower blades 112 and 114 of the blade body 110
are made from a steel plate having desired strength and elasticity
by cutting the steel plate in a desired size. The upper and lower
blades 112 and 114 respectively have the cutting edges 112a and
114a at one end thereof.
[0045] The cutting edges 112a and 114a are curved with a first
curvature toward the other end of the blade body in a plan view so
as to correspond to the curve of the nail, while being curved with
a second curvature with respect to a surface of the blade body 110
in a front view so as to meet a sectional end of the nail, as shown
in FIGS. 4 and 5.
[0046] The other ends of the upper and lower blades 112 and 114 of
the blade body 110 are joined to each other in a manner of welding
and the like, so that the upper blade 112 is integrated with the
lower blade 114. In addition, however, the upper blade 112 can be
combined with the lower blade at the other end thereof by using a
rivet.
[0047] Meanwhile, the upper and lower blades 112 and 114
respectively have a thru-hole at a portion near one end thereof,
through which a post 124 of the lever assembly 120, as described
hereinafter, extends.
[0048] The lever assembly 120 includes the post 126 extending
through the blade body 110 and a lever 122 pivotally coupled to an
upper portion of the post 126.
[0049] The post 124 extends through the thru-hole from a surface of
the lower blade 114 before extending through the upper blade
112.
[0050] The lever 122 has a bent portion at one end thereof, which
has a through-hole through which the post 124 extends to combine
the lever 122 to the upper blade 112 so that the lever 122 pivots
over the upper blade 112. Further, an abutment projection is
projected at a position near the bent portion 126 of the lever 122
so as to come in contact with the upper blade 112 to enhance a
lever operation.
[0051] Hereinafter, an operation and effect of the nail clipper 100
according to the first embodiment of the present invention will be
described in detail.
[0052] With the nail clipper 100 according to the first embodiment
of the present invention constructed as described above, when a
user grips the other end of the lever 122 and the other end of the
blade body 110 so as to apply force to the lever 122 and the blade
body 110, the bent portion 126 of the lever 122 pivots upwardly
about the abutment projection 128 adjacent to the bent portion 126
of the lever 122.
[0053] Thus, the upper blade 112 against which the lever 122 bears
is pressed in a direction opposite to the bent portion 126 of the
lever 122 by means of the lever 122. As a result, the cutting edges
112a and 114a of the upper and lower blades 112 and 114 bring into
contact with each other to cut the nail.
[0054] Since the cutting edges 112a and 114a of the upper and lower
blades 112 and 114 have the first curvature corresponding to the
curve of the nail end and the second curvature corresponding to the
curve of the sectional end of the nail, the nail clipper according
to the first embodiment of the present invention can cut the nail
smoothly at a time when cutting the nail.
[0055] Hereinafter, a nail clipper 200 according to the second
embodiment of the present invention will be described in detail
with reference to the accompanying drawings.
[0056] FIG. 6 is an exploded perspective view of the nail clipper
200 according to the second embodiment of the present invention,
and FIG. 7 is a partially enlarged perspective view of the nail
clipper 200 according to the second embodiment of the present
invention shown in FIG. 6, in which a lever 222 removes a blade
body 210 from a casing 230.
[0057] As shown in FIGS. 6 and 7, the nail clipper 200 according to
the second embodiment of the present invention comprises a blade
body 210 including an upper blade 212 having a cutting edge 212a at
one end thereof and a lower blade 214 having a cutting edge 214a at
one end thereof, of which the other end is joined to the other end
of the upper blade 212; a casing 230 for releasably receiving the
blade body 210; and a lever 220 which is combined with the casing
230 adjacent to the one end of the blade body 210 received in the
casing 230, for applying force to the one end of the blade body 210
so that the cutting edges 212a and 214a of the upper and lower
blades 212 and 214 of the blade body 210 are engaged with each
other.
[0058] The blade body 210 is comprised of the upper blade 212 and
the lower blade 213. The cutting edges 212a and 214a are
respectively formed at one end of the upper and lower blades 212
and 214. The upper and lower blades 212 and 214 are joined to each
other at the other end thereof by welding and the like.
[0059] The cutting edges 212a and 214a of the upper and lower
blades 212 and 214 have a curvature corresponding to a curve of the
nail end. However, it is understood that the cutting edges 212a and
214a of the upper and lower blades 212 and 214 have a first
curvature corresponding to a curve of the nail end and a second
curvature corresponding to a curve of a sectional end of the
nail.
[0060] The blade body 210 has a thru-hole 216 at the other end of
thereof.
[0061] The upper blade 212 has a pair of rectangular grooves 218 on
an upper surface adjacent to the one end thereof. The rectangular
grooves 218 are divided by a plurality of partitions 218a. Each
partition 218a has a slanted surface which is declined toward the
cutting edge 212a.
[0062] The rectangular groove 218 divided by the partitions 218a
receives a projection 226a formed at a front end of a bent portion
226 of a lever 220 as described below when the blade body 210 is
removed from the casing 230 as described below.
[0063] The casing 230 includes a bottom wall 232 and a pair of
sidewalls 234 and 236 extending from sides of the bottom wall 232.
The sidewalls 234 and 236 respectively have thru-holes 234a and
236a with a desired diameter at a portion adjacent to the one end
thereof, as shown in FIG. 5.
[0064] The casing 230 has through-holes formed at the other end
thereof in which a cover 240 for covering and protecting the blade
body 210 and the lever 220 is pivotally mounted. Further, the
casing 230 has recesses 234b at an intermediate portion of
sidewalls 234 and 236 thereof to receive a protrusion 244a for
fixing the cover 240 to the casing 230.
[0065] The cover 240 includes a ceiling wall 242, sidewalls 244 and
246 extending downwardly from sides of the ceiling wall 242 and a
connecting bar 248 extending through the sidewalls 244 and 246 in
order to rotatably mount the cover 240 to the casing 230.
[0066] The protrusions 244a and 246a for fixing the cover 240 to
the casing 230 are formed at the one end on the sidewalls 244 and
246 of the cover 240, and the through-holes are formed at the other
end of the sidewalls 244 and 246 of the cover 240, through which
the connecting bar 248 extends.
[0067] The lever 220 includes a body 222, the bent portion 226 to
be bent at a desired angle with respect to the body 222 and a pair
of protrusions 228a and 228b extending at a distance from sides of
the bent portion 226.
[0068] Further, the lever 220 has an abutment projection (not
shown) on the bent portion 226 thereof in order to support the
lever 220 against the upper blade 212, when the body 222 of the
lever 220 pivots about the protrusions 228a and 228b of the bent
portion 226 to the blade body 210.
[0069] In addition, the bent portion 226 of the lever 220 has a
pair of projections 226a and 226b extending at a desired distance
from the front end thereof in order to remove the blade body 210
from the casing 230. The projections 226a and 226b have a length
equal to a depth of the rectangular groove 218 formed on an upper
surface of the upper blade 212, which are spaced from each other at
the distance between the rectangular grooves 218.
[0070] The lever 220 is joined to the casing 230 in a manner of
inserting the protrusions 228a and 228b formed at sides of the bent
portion 226 into the through-holes 234a and 236a at the one end of
the casing 230.
[0071] Hereinafter, the operation and effect of the nail clipper
200 according to the second embodiment of the present invention
will be described in detail.
[0072] With the nail clipper 200 according to the second embodiment
of the present invention, as shown in FIGS. 6 and 7, the
protrusions 228a and 228b formed at sides of the lever 220 firstly
are inserted into the thru-holes 234a and 236a on the sidewalls 234
and 236 of the casing 230, so that the lever 220 is pivotally
installed to the casing 230.
[0073] After the thru-holes formed at the other end of the cover
240 are arranged to be coaxial with the through-holes formed at the
other end of the casing 230, the connecting bar 248 is inserted
into the thru-holes of the cover 240 and the casing 230 so that the
cover 240 is pivotally installed to the casing 230.
[0074] Finally, the other end of the blade body 210 is inserted
between the bottom wall 242 of the casing 230 and the bent portion
226 of the lever 220 in order for the blade body 210 to be
introduced in the casing 230.
[0075] The blade body 210 inserted in the casing 230 is tightly
disposed between the lever 220 and the bottom wall 232 of the
casing 230 by its elasticity.
[0076] In the nail clipper 200 according to the second embodiment
of the present invention assembled as described above, when a user
applies force to the other ends of the lever 220 and the casing 230
to move the lever 220 and the casing 230 in a direction facing with
each other, the lever 220 pivots clockwise about the protrusions
228a and 228b formed at the sides thereof while the abutment
projection on the bent portion 226 of the lever 220 will push the
upper blade 212.
[0077] Thus, the cutting edge 212a of the upper blade 212 brings in
contact with the cutting edge 214a of the lower blade so as to cut
the nail between the cutting edges 212a and 214a.
[0078] When the user intends to replace the blade body 210
installed to the casing 230 with another blade body having
different size and curvature from those of the blade body 210, the
lever 220 is pivoted counterclockwise so that the pair of
projections 226a and 226b formed at the front end of the bent
portion 226 of the lever 220 are positioned to correspond to any
one of the partitions in the rectangular grooves 218 of the upper
blade 212.
[0079] Then, the lever 220 is continuously rotated
counterclockwise, so as to make the projections 226a and 226b of
the lever 220 respectively inserted in a space of the rectangular
grooves 218. At this time, the projections 226a and 226b are
respectively inserted into the rectangular grooves 218a along the
slanted surface of the partition.
[0080] When the projections 226a and 226b of the lever 220 are
completely inserted into the corresponding space of the rectangular
groove 218, the lever 220 is made to rotate clockwise. Thus, the
blade body 210 can be pushed out of the casing 230 by rotating
force of the lever 220.
[0081] Continuously, the blade body 210 can be removed from the
casing 230 by carrying out the above-described process several
times. Then, a new blade body to be used is inserted between the
bottom wall 232 of the casing 230 and the bent portion 226 of the
lever 220 to install the new blade body to the casing 230.
[0082] As described above, the nail clipper according to the second
embodiment of the present invention has an advantage in that the
blade body having the cutting edge with curvature corresponding to
that of the nail can be used in the casing according to the size of
the nail.
[0083] Hereinafter, a nail clipper 300 according to the third
embodiment of the present invention will be described in detail
with reference to the accompanying drawings.
[0084] FIG. 8 is an exploded perspective view of the nail clipper
300 according to the third embodiment of the present invention.
[0085] As shown in FIG. 8, the nail clipper 300 according to the
third embodiment of the present invention comprises a blade body
310 including an upper blade 312 having a cutting edge 312a at one
end thereof and a lower blade 314 having a cutting edge 314a at one
end thereof, of which the other end is joined to the other end of
the upper blade 312; a casing 330 for releasably receiving the
blade body 310; and a lever 320 which is combined with the casing
330 adjacent to the one end of the blade body 310 received in the
casing 330, for applying force to the one end of the blade body 310
so that the cutting edges 312a and 314a of the upper and lower
blades 312 and 314 of the blade body 310 are engaged with each
other.
[0086] The blade body 310 is comprised of the upper blade 312 and
the lower blade 313. The cutting edges 312a and 314a are
respectively formed at one end of the upper and lower blades 312
and 314. The upper and lower blades 312 and 314 are joined to each
other at the other end thereof by welding and the like.
[0087] The cutting edges 312a and 314a of the upper and lower
blades 312 and 314 have a curvature corresponding to a curve of the
nail end. However, it is understood that the cutting edges 312a and
314a of the upper and lower blades 312 and 314 have a first
curvature corresponding to a curve of the nail end and a second
curvature corresponding to a curve of a sectional end of the
nail.
[0088] The blade body 310 has a thru-hole 316 at the other end of
thereof.
[0089] The upper blade 312 has a pair of rectangular groove 318 on
an upper surface adjacent to the one end thereof. The rectangular
groove 318 receives an abutment projection (not shown) formed on a
lower surface of the bent portion 326 of the lever 320 as described
below when the nail clipper 300 is not used.
[0090] The casing 330 includes a bottom wall 332, a pair of
sidewalls 334 and 336 extending from sides of the bottom wall 332
and a rear wall 338 extending upwardly from a rear side of the
bottom wall 332 and being connected to the sidewalls 334 and
336.
[0091] A stem 340 having a desired height is formed adjacent the
other end of the casing 330 on the bottom wall 332 of the casing
330. The stem 340 is inserted into the thru-hole 316 on the blade
body 310 which is received in the casing 330, so as to prevent the
blade body 310 from being removed from the casing 330.
[0092] Each of sidewalls 334 and 336 has rectangular thru-holes
334a and 336a to receive the protrusions 326a and 326b extending
from sides of the bent portion 326 of the lever, as shown in FIG.
8. The rectangular thru-holes 334a and 336a are opposite to each
other.
[0093] The lever 320 includes a body 322, the bent portion 326 to
be bent at a desired angle with respect to the body 322 and a pair
of protrusions 326a and 326b extending at a distance from sides of
the bent portion 326.
[0094] Further, the lever 320 has an abutment projection (not
shown) on the bent portion 326 thereof in order to support the
lever 320 against the upper blade 312, when the body 322 of the
lever 320 pivots about the protrusions 326a and 326b of the bent
portion 326 to the blade body 310.
[0095] The lever 320 is joined to the casing 330 in a manner of
inserting the protrusions 326a and 326b formed at sides of the bent
portion 326 into the through-holes 334a and 336a at the one end of
the casing 330. The lever 320 installed to the casing 330 can be
slidably moved along the rectangular thru-holes 334a and 335a
formed on the sidewalls 334 and 336 of the casing 330.
[0096] Hereinafter, the operation and effect of the nail clipper
300 according to the third embodiment of the present invention will
be described in detail.
[0097] With the nail clipper 300 according to the third embodiment
of the present invention, as shown in FIG. 8, the protrusions 326a
and 326b formed at sides of the lever 320 firstly are inserted into
the thru-holes 334a and 336a on the sidewalls 334 and 336 of the
casing 330 so that the lever 320 is pivotally installed to the
casing 330.
[0098] Then, the other end of the blade body 310 is inserted
between the bottom wall 332 of the casing 330 and the bent portion
326 of the lever 320 in order for the blade body 310 to be pushed
in the casing 330. Continuously, the stem 340 formed on the bottom
wall 332 of the casing 330 is inserted into the thru-hole 316 of
the blade body 310 so as to fix the blade body 310 to the casing
330.
[0099] The blade body 310 inserted in the casing 330 is tightly
disposed between the lever 320 and the bottom wall 332 of the
casing 330 by its elasticity.
[0100] In the nail clipper 300 according to the third embodiment of
the present invention assembled as described above, when a user
does not use the nail clipper 300, the lever 320 is pulled along
the rectangular thru-holes 334a and 336a toward a rear portion of
the casing 330 so that the abutment projection on the bent portion
326 of the lever 320 is received in the rectangular groove 318 on
the upper blade 312 to prevent the lever 320 from pivoting.
[0101] When the user uses the nail clipper 300, the lever 300
firstly is pushed along the rectangular thru-holes 334a and 336a in
the sidewalls of the casing 330 toward a front portion of the
casing 330 in order to place the abutment projection of the lever
320 on a portion of the upper surface of the upper blade 312.
[0102] When the user presses the other ends of the lever 320 and
the casing 330 to be opposite to each other, then, the lever 320
pivots clockwise about the protrusions 326a and 326b formed at the
sides thereof while the abutment projection on the bent portion 326
of the lever 320 pushes the upper blade 312.
[0103] Thus, the cutting edge 312a of the upper blade 312 brings in
contact with the cutting edge 314a of the lower blade 314, so as to
cut the nail therebetween.
[0104] When the user intends to replace the blade body 310
installed to the casing 330 with another blade body having
different size and curvature from those of the blade body 310, the
lever 320 is pulled toward the rear portion of the casing 330 in a
non-operation. Then, the one end of the blade body 310 is pushed
down to remove the other end of the blade body 310 from the stem
340. Finally, the blade body 310 is pulled out of the casing 330 to
be completely removed from the casing 330.
[0105] Then, a blade body suitable for the nail to be cut is
select, which is inserted into the casing in order as described
above to complete the assembling of the nail clipper.
[0106] As described above, the nail clipper according to the third
embodiment of the present invention has an advantage in that the
blade body having the cutting edge with curvature corresponding to
that of the nail can be used in the casing according to the size of
the nail.
[0107] Hereinafter, a nail clipper 400 according to a fourth
embodiment of the present invention will be explained in more
detail with reference to the accompanying drawings.
[0108] FIG. 9 is an exploded perspective view of the nail clipper
400 according to the fourth embodiment of the present invention,
and FIG. 10 is a perspective view of the nail clipper 400 according
the fourth embodiment of the present invention, for showing a
combining state that a blade body 410 is ready to engage into a
casing 430, which functions as a lever.
[0109] As shown in FIGS. 9 and 10, the nail clipper 400 according
to the preferred fourth embodiment of the present invention
comprises the blade body 410 and the casing 430 for receiving the
blade body 410. The blade body 410 includes an upper blade 412
having a cutting edge 412a at its one end and a lower blade 414
having a cutting edge 414a at its one end. At this time, the other
end of the lower blade 414 is combined with the other end of the
upper blade 412. The casing 430 presses one end of the blade body
410 so that the cutting edge 412a formed at the one end of the
upper blade 412 is contacted with the cutting edge 414a formed at
the one end of the lower blade 414.
[0110] An elongated groove 416 having a predetermined cross
sectional diameter is formed in an upper surface of the upper blade
412 of the blade body 410 and it extends across the upper blade
412.
[0111] The cutting edge 412a and the cutting edge 414a, which are
formed at the one end of the upper blade 412 and at the one end of
the lower blade 414, respectively, have a radius of curvature
corresponding to a rounded shape of a nail's terminal portion.
However, the cutting edge 412a of the upper blade 412 and the
cutting edge 414a of the lower blade 414 may have a first radius of
curvature corresponding to a rounded shape of a nail's terminal
portion and a second radius of curvature corresponding to a rounded
shape of a nail's sectional part.
[0112] The casing 430 includes a bottom wall portion 432, side wall
portions 434,436 upwardly extending from both periphery portions of
the bottom wall portion 432, a rear wall portion 438 upwardly
extending from a rear periphery portion of the bottom wall portion
432 and being integrally connected with the side wall portions
434,436, a horizontal member 439 for connecting the blade body 410
with the casing 430, which extends between the side wall portions
434,436 at the ends of the side wall portions 434,436.
[0113] The horizontal member 439 connects the side wall portions
434,436 with each other at ends of the side wall portions 434,436
of the casing 430. When the blade body 410 is mounted into the
casing 430, the horizontal member 439 is engaged with the elongated
groove 416 formed on the upper surface of the upper blade 412 of
the blade body 410 and then it makes the blade body 410 to be fixed
in the casing 430.
[0114] Rectangular-shaped through holes 434a, 436a are formed at
lower portions of the side wall portions 434,436 of the casing 430.
Protrusions 422a, 424a, which will be described herein below, may
be inserted into the rectangular-shaped through holes 434a, 436a
formed at the side wall portions 434,436 of the casing 430.
[0115] The casing 430 includes a lever member 420 slideably
disposed at an inner lower portion of the blade body 410 that is
received within the casing 430. The lever member 430 presses the
one end of the blade body 410 so that the cutting edges 412a, 414a
provided at the ends of the upper blade 412 and the lower blade 414
of the blade body 410 are engaged with each other.
[0116] The lever member 420 includes protrusions 422a, 424a, which
laterally extend from both side portions of the lever member 420
and are inserted into the rectangular-shaped through holes 434a,
436a formed at both side wall portions 434,436 of the casing
430.
[0117] Preferably, a front surface of the lever member 420
comprises a slanted surface 422. Alternatively, the front surface
of the lever member 420 may comprise a staged surface.
[0118] Hereinafter, an operation and an effect of the nail clipper
400 according to the preferred fourth embodiment of the present
invention will be explained in more detail.
[0119] In the nail clipper 400 according to the preferred fourth
embodiment of the present invention, the protrusions 422a, 424a of
the lever member 420 are inserted into the rectangular-shaped holes
434a, 436a formed at both side wall portions 434,436 of the casing
430. Then, the lever member 420 is slideably disposed within the
casing 430 so that it can slide along the rectangular-shaped holes
434a, 436a.
[0120] Thereafter, the slide main body 410 is inserted between the
lever member 420 and the horizontal member 439 of the casing 430.
The blade body 410 is pushed into the casing 430 until the
horizontal member 439 of the casing 430 is engaged into the
elongated groove 416 formed on the upper surface of the upper blade
412.
[0121] Under the assembling state of the nail clipper, a user does
not want to use the nail clipper, he makes an elastic force applied
against the blade body 410 from the lever member 420 to be released
by moving the casing 430 backwards along the rectangular-shaped of
the casing 430. Accordingly, the blade body 410 is at a
standstill.
[0122] In the meantime, if the user wants to use the nail clipper,
he makes the lever member to apply an elastic force against the
blade body 410 by moving the lever member 420 forward the casing
430 along the rectangular-shaped of the casing 430. Accordingly,
the blade body 410 is ready to use.
[0123] Under this state, if the user presses the blade body 410 and
the casing 430 with each other in order to cut his or her nail, the
lever member 420 presses the lower blade 414 of the blade body 410.
The pressed lower blade 414 may cut his or her nail with its
cutting edge 414a engaging with the cutting edge 412a of the upper
blade 412.
[0124] Meanwhile, if the user wants to replace the blade body in
accordance with a size of the user's nail, he or she must separate
the blade body from the casing on the contrary to the assembling
sequence as described above. Thereafter, he or she can mount the
blade body having a desired size of cutting edge into the
casing.
[0125] As described above, in the nail clipper according to the
preferred fourth embodiment of the present invention, it can use
the blade body that is provided with the cutting edge having a
desired radius of curvature corresponding to the radius of
curvature of the nail to be cut in accordance with the size of the
nail.
[0126] While the present invention has been particularly shown and
described with reference to particular embodiments thereof, it will
be understood by those skilled in the art that various changes in
form and details may be effected therein without departing from the
spirit and scope of the invention as defined by the appended
claims.
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