U.S. patent application number 11/571593 was filed with the patent office on 2008-02-07 for tooth brush.
Invention is credited to Jong Sung Kim.
Application Number | 20080028559 11/571593 |
Document ID | / |
Family ID | 36647692 |
Filed Date | 2008-02-07 |
United States Patent
Application |
20080028559 |
Kind Code |
A1 |
Kim; Jong Sung |
February 7, 2008 |
Tooth Brush
Abstract
A tooth brush of this invention is characterized by comprising a
handle (10) linerly formed in the longitudinal direction so that it
may be held by hand and a head (12) bent and extended at an angle
of 20.degree. to 70.degree. to the left side against the
extensional direction of the said handle (10) and further bent and
extended at an angle of 10.degree. to 40.degree. to the rear side
of the prominent tooth brush against the axis parallel with the
handle (10). The capacity to remove plaque of the tooth brush of
this invention improves noticeably compared that of conventional
tooth brush. Furthermore, when one brushes one's teeth in every
nook and corner, using the tooth brush of this invention decreases
the fatigue of one's wrist and arm substantially, compared with the
conventional tooth brush.
Inventors: |
Kim; Jong Sung; (Sungnam,
KR) |
Correspondence
Address: |
PARK LAW FIRM
3255 WILSHIRE BLVD, SUITE 1110
LOS ANGELES
CA
90010
US
|
Family ID: |
36647692 |
Appl. No.: |
11/571593 |
Filed: |
January 27, 2005 |
PCT Filed: |
January 27, 2005 |
PCT NO: |
PCT/KR05/00225 |
371 Date: |
January 3, 2007 |
Current U.S.
Class: |
15/167.1 ;
15/171 |
Current CPC
Class: |
A46B 5/0075 20130101;
A46B 5/0079 20130101; A46B 2200/1066 20130101 |
Class at
Publication: |
15/167.1 ;
15/171 |
International
Class: |
A46B 9/04 20060101
A46B009/04; A46B 5/06 20060101 A46B005/06 |
Foreign Application Data
Date |
Code |
Application Number |
Jan 4, 2005 |
KR |
10-2005-0000366 |
Claims
1. A tooth brush, wherein it is characterized by comprising a
handle (10) linerly formed in the longitudinal direction so that it
may be held by hand and a head (12) bent and extended at an angle
of 20.degree. to 70.degree. to the left side against the
extensional direction of the said handle (10) and further bent and
extended at an angle of 10.degree. to 40.degree. to the rear side
of the prominent tooth brush against the axis parallel with the
handle (10).
2. A tooth brush according to claim 1, wherein the said head (12)
is bent and extended with an elliptical curve being formed against
the direction in which the head is extended from the handle (10).
Description
TECHNICAL FIELD
[0001] This invention is related to a tooth brush with a special
structural shape enabling anterior and posterior part of upper and
lower teeth to be evenly cleaned.
BACKGROUND ART
[0002] In general, people use a tooth brush and tooth paste
regularly to clean the food remnants and plaque which is created by
the food dregs. However if one brushes one's teeth from side to
side repeatedly, one's teeth and gum get to be damaged.
[0003] There are several recommendable ways to brush the teeth. For
example, it's known to be a good practice to brush the outer
surface of the upper and lower teeth from the top to the bottom.
When brushing the teeth, one is recommended to revolve the tooth
brush or move it vertically. And for the inner surface of incisors
it's also recommended to move the tooth brush from the bottom to
the top. However, if one brushes one's teeth in such a manner with
a conventional tooth brush, one gets tired easily in one's wrist or
arm and tends to finish brushing quickly. As a result, one may fail
in making one's teeth clean.
DISCLOSURE OF INVENTION
Technical Problem
[0004] In order to clean one's teeth in every nook and corner
easily, a tooth brush with a bent structure was ever developed.
Korean Laid-Open Utility Model No. 20-1987-0004713 (laid-open on
Apr. 20, 1987) discloses a tooth brush which is consisted of brush
unit and handle, wherein a circular rotor is formed in the lower
part of the brush unit, the center and the circumferential
extension of which are perforated to form a motor hole and a plural
number of angle holes, and the handle, where a switch groove is
formed, is engraved with a central axis for fixing the said
circular rotor and a motor groove to turn from side to side. The
tooth brush is constructed so that the said brush unit may be
variably fixed in a position with a given angle by a switch
prominently formed on the handle and a rotary rod and a spring of
the working rod.
[0005] Korean Laid-Open Utility Model No. 20-1997-0048852
(laid-open on Aug. 12, 1997) discloses a tooth brush with an angle
adjustable structure. The tooth brush disclosed in the said
laid-open utility model has a circular protrusion in one side of
the handle, and a circular perforation of C-shape in one side of a
brush body. The handle and the brush body are combined with each
other and the angle between them can be adjusted at one's option.
Furthermore, a magnet is combined with one side of the handle.
[0006] However, even in the case of the said tooth brushes, the
handle and the brush are bent only in the unilateral direction so
that they have a limitation to removal of plaque from one's teeth,
and further, when one brushes one's teeth with either of the said
tooth brushes, one gets to feel tired in one's wrist or arm so that
one may still has difficulties in cleaning one's teeth.
Technical Solution
[0007] The objective of this invention is to provide a tooth brush
enabling the brush hairs to get in contact with every nook and
corner of one's teeth without feeling tired in one's wrist or arm
when one brushes one's teeth by the method of brushing one's teeth
which is known to be recommendable.
[0008] A tooth brush according to this invention for accomplishing
the said objective consists of a handle (10) linearly formed in the
longitudinal direction so that it may be held by hand; and
[0009] a head (12) bent and extended at an angle of 20.degree. to
70.degree. to the left side against the extensional direction of
the said handle (10) and further bent and extended at an angle of
10.degree. to 40.degree. to the rear side of the prominent tooth
brush against the axis parallel with the handle (10).
[0010] Also it is preferable that the said head (12) is bent and
extended with an elliptical curve being formed against the
direction in which the handle (10) is extended.
Advantageous Effects
[0011] When one brushes one's teeth with the handle (10) of the
tooth brush of this invention with one's right hand, the brush gets
to be well in contact with every nook and corner of the anterior
and posterior teeth of the upper and lower teeth so that its
capacity to remove plaque gets to be substantially increased and
further, one feels less tired in one's wrist and arm compared with
the case one uses a conventional tooth brush with the same tooth
paste for the same time by the same method.
[0012] In addition, the tooth brush of this invention induces a
user to brush the teeth by moving the tooth brush in the vertical
direction so that it helps the user get rid of a bad habit of
brushing the teeth side by side. Particularly, while it's difficult
for the conventional tooth brush to reach the rear surface of the
upper or lower teeth, thanks to its enhanced accessability to those
area, the tooth brush of this invention remove the plaque
efficiently. When one brushes one's teeth with the conventional
tooth brush in the horizontal direction, tooth paste often gets to
go between hair of the brush so that a lot of tooth paste fails to
be used in the actual brushing one's teeth, which results in a
large consumption of tooth paste, while the tooth brush of this
invention can reduce a consumption of tooth paste by inducing the
user to brush the teeth in the vertical direction.
BRIEF DESCRIPTION OF THE DRAWINGS
[0013] FIG. 1 is a perspective view showing the structure of the
tooth brush according to an example of this invention.
[0014] FIG. 2 is a front view showing the structure of the tooth
brush according to an example of this invention.
[0015] FIG. 3 is a side view showing the structure of the tooth
brush according to an example of this invention.
MODE FOR THE INVENTION
[0016] Hereafter, a preferable example of this invention is
described in detail by reference to the accompanying drawings.
[0017] FIG. 1 is a perspective view showing the structure of the
tooth brush according to an example of this invention. FIG. 2 is a
front view showing the structure of the tooth brush according to an
example of this invention. FIG. 3 is a side view showing the
structure of the tooth brush according to an example of this
invention.
[0018] As shown in the figures, a tooth brush of this invention is
characterized by comprising a handle (10) linearly formed in the
longitudinal direction so that it may be held by hand and a head
(12) bent and extended with an elliptical curve being formed at an
angle of 20.degree. to 70.degree. to the left side against the
extensional direction of the said handle (10) and further bent and
extended with an elliptical curve being formed at an angle of
10.degree. to 40.degree. to the rear side of the prominent tooth
brush against the axis parallel with the handle (10).
[0019] When a right-handed person brushes the rear surface of the
lower incisor with a conventional tooth, he/she has to raise
his/her hand holding the handle of the tooth brush higher than
his/her cavity and the direction in which he/she brushes the teeth
is extended. This leads to a small surface area to contact with the
brush and further easy tilt of the front part of the brush. After
all, this leads to fast deterioration of the tooth brush's cavity
to remove plaque. Meanwhile, the tooth brush of this invention has
the head (12) bent and extended with an elliptical curve being
formed against the direction in which the handle (10) is extended.
In this connection, it has been discovered that when one brushes
one's teeth with the said tooth brush and a part between the handle
(10) and the head (12) gets in touch with one's lips, one feels
much less uncomfortableness. That is to say, it is preferable to
extend the head in the elliptical form, compared to the circular
form.
[0020] Meanwhile, when one brushes one's teeth with the handle (10)
of the tooth brush of this invention with one's right hand, the
brush gets to be well in contact with every nook and corner of the
anterior and posterior teeth of the upper and lower teeth so that
its capacity to remove plaque gets to be substantially increased
and further, one feels less tired in one's wrist and arm, compared
with the case that one uses a conventional tooth brush with the
same tooth paste for the same time by the same method.
[0021] In addition, the tooth brush of this invention induces a
user to brush the teeth by moving the tooth brush in the vertical
direction so that it helps the user get rid of a bad habit of
brushing the teeth horizontally. Particularly, while it's difficult
for the conventional tooth brush to reach the rear surface of the
upper or lower teeth, thanks to its enhanced accessability to those
area, the tooth brush of this invention remove the plaque
efficiently. When one brushes one's teeth with the conventional
tooth brush in the horizontal direction, tooth paste often gets to
go between hair of the brush so that a lot of tooth paste fails to
be used in the actual brushing one's teeth, which results in a
large consumption of tooth paste, while the tooth brush of this
invention can reduce a consumption of tooth paste by inducing the
user to brush the teeth in the vertical direction.
[0022] However, in case the head is bent and extended from the said
handle (10) at an angle below 20.degree. to the left side against
the direction in which the said handle (10) is extended, the
accessability to the rear surface area of the upper and lower
teeth, where the brush of the conventional tooth brush is not well
contact with in a usual posture, is not improved much. And in case
the head is bent and extended from the said handle at an angle over
70.degree. to the left side against the direction in which the said
handle (10) is extended, the user complains of uncomfortableness
resulting from the touch of the handle with his/her lips.
Therefore, only in case the head (12) is bent and extended from the
said handle (10) with an elliptical curve being formed at an angle
of 20.degree. to 70.degree. to the left side against the direction
in which the said handle (10) is extended, the objective of this
invention can be attained.
[0023] Meanwhile, in case the head is bent and extended at an angle
below 10.degree. to the rear side of the prominent tooth brush
against the axis parallel with the handle (10), the accessability
to the rear surface area of the upper and lower teeth, where the
brush of the conventional tooth brush is not well contact with in a
usual posture, is not improved much. And in case the head is bent
and extended at an angle of over 40.degree. to the rear side of the
prominent tooth brush against the axis parallel with the handle
(10), the user complains of poor engagement between the brush and
the teeth. Therefore, only in case the head (12) is bent and
extended with an elliptical curve being formed at an angle of
10.degree. to 40.degree. to the rear side of the prominent tooth
brush against the axis parallel with the handle (10), the objective
of this invention can be attained.
[0024] Of course, even if one uses the conventional tooth brush,
one can brush one's teeth in every nook and corner with care, like
the case of using the tooth brush of this invention, but the user
gets to feel tired easily in his wrist and arm, and the brush also
gets to be abraded fast. This is a noteworthy problem.
[0025] 200 subjects, who were randomly selected for a comparative
experiment, were divided into two groups, and each group consisted
of 100 subjects. 100 subjects of the one group were let to use the
conventional tooth brush, while the other 100 subjects of the other
group were let to use the tooth brush of this invention. Except the
tooth brush, both groups brushed teeth under the same conditions,
that is to say, both groups used the same tooth paste, the same
brushing method and the same time. Then, the number of subjects
complaining of feeling tired and exch tooth brush's capacity to
remove plaque from the anterior teeth of the lower teeth were
compared between both groups. The results of this experiment are
shown in Table 1.
TABLE-US-00001 TABLE 1 Removal of plaque Number of from anterior
subjects feeling tired teeth of lower teeth (%) Using Using Using
tooth conventional Using tooth conventional brush of this tooth
brush of this tooth invention brush invention brush (Group 1)
(Group 2) (Group 1) (Group 2) 30 seconds 0 1 25% 12% 1 minutes 0 3
36% 18% 1 minutes 2 14 54% 27% 30 seconds 2 minutes 7 25 71% 35% 2
minutes 12 38 85% 46% 30 seconds 3 minutes 22 52 92% 57% 3 minutes
28 57 95% 72% 30 seconds 4 minutes 35 65 97% 78% 5 minutes 46 85
98% 85% 7 minutes 52 92 98% 90% 10 minutes 75 100 99% 95%
[0026] Compared with the conventional tooth brush, the tooth brush
of this invention has a much enhanced capacity to remove plaque
from the rear surface of the upper and lower teeth that is
difficult to be brushed, and further has an effect that the user
feels much less tired in his wrist and arm when he/she brushes the
teeth in every nook and corner.
INDUSTRIAL APPLICABILITY
[0027] As mentioned above, the tooth brush of this invention has a
much enhanced capacity to remove plaque from the rear surface of
the upper and lower teeth that is difficult to be brushed, and
further has an effect that the user feels much less tired in his
wrist and arm when he/she brushes the teeth in every nook and
corner, compared with the conventional tooth brush. In addition,
the tooth brush of this invention induces a user to brush the teeth
by moving the tooth brush in the vertical direction so that it
helps the user get rid of a bad habit of brushing the teeth
horizontally. Particularly, thanks to the enhanced accessability to
the rear surface of the upper and lower teeth, the tooth brush of
this invention has much improved capacity to remove plaque. And the
tooth brush of this invention can reduce a consumption of tooth
paste by inducing the user to brush the teeth in the vertical
direction.
* * * * *