JP3118045U - Fit-in interdental brush - Google Patents

Abstract

Provided is a fitting interdental brush in which a brush head and a brush handle are firmly coupled, more elastic and easy to bend, and can easily clean the interdental depth of a user's mouth.
A brush head (5) passes a metal wire (51) through a coupling hole (43) of a sleeve (4) and bends an end portion (53) of the metal wire (51) to be fixed to an end surface of a second end (42) of the sleeve (4). Next, the second end 42 of the sleeve 4 is put into the brush handle main body 3 through the opening 33, and the head portion 45 and the shaft tube 44 of the sleeve 4 are put into the brush handle main body 3, respectively. The shaft tube 44 is coupled to the coupling groove 35 and the shaft hole 34 of the brush handle body 3. Finally, these members are put in a mold, covered with injection molding equipment, and the plastic 6 is packed into the joint portion of the brush handle body 3 and the sleeve 4, and in the recess 36 and the recessed neck portion 46 of the brush handle body 3 and the sleeve 4. Stuff.
[Selection] Figure 6

Description

  The present invention relates to a structure of a fitting type interdental brush, and in particular, a structure of a fitting type interdental brush that can be inserted into the back of the oral cavity and can be cleaned between teeth, with a firm connection of the brush head and more elasticity. It is about.

  A general toothbrush has a plurality of bristles planted on one side of a brush handle. When brushing teeth, the bristles are in contact with the front or inner surface of the tooth, so that most of the front or inner surface of the tooth can be cleaned. However, in general, when food is eaten, dirt such as food residue or waste tends to accumulate in gaps between adjacent teeth (that is, gaps between teeth). These interdental gaps are located on the side surfaces of adjacent teeth, and the space is narrow, and the above-mentioned general toothbrush has a large volume and cannot clean the dirt between the interdental spaces. It has become. In addition, when a user is correcting a tooth with an orthodontic appliance, many gaps are formed between the support frame of the orthodontic appliance and the user's teeth, and dirt easily collects. A general toothbrush cannot effectively clean the dirt accumulated in the gap.

  In view of this, some vendors design and provide interdental brushes that are made into longitudinal conical brush bristles and are used to clean dirt in interdental or narrow interstitial spaces with longitudinal reciprocation. .

  FIG. 1 and FIG. 2 are a side view and a sectional view of a conventional interdental brush. As shown in these drawings, a general interdental brush A includes a brush head 1 and a brush handle 2. The brush handle 2 has a handle portion 21 and a neck portion 22 connected to the front end of the handle portion 21, and the outer diameter is clearly small. A coupling hole 23 extending along the longitudinal direction of the brush handle 2 is provided at the center of the neck portion 22. The brush head 1 is wound around a plurality of bundles of bristles 12 with a very thin metal wire 11 such as a steel wire, and the bristles 12 appear in a conical shape, and the end of the metal wire 11 has a brush pattern in the vertical direction. The two coupling holes 23 are attached. In this way, if the brush handle 2 is used as a support for the brush head 1, the brush handle 2 is held, and the brush head 1 is moved in a reciprocating manner in an interdental gap or a narrow gap, the brush bristles 12 of the brush head 1 are held. Dirt that accumulates between teeth or in narrow gaps can be cleaned.

However, the above-mentioned conventional interdental brush A has the following disadvantages when used.
(1) The brush head 1 has only a metal wire vertically attached to the joint hole 23 of the brush handle 2 and does not have a joint fitting action in the lateral direction. When used in a reciprocating manner, the gap between the teeth or the narrow gap is extremely narrow, so that a phenomenon of pinching the metal wire 11 of the brush head 1 occasionally occurs, and the pinching force is the brush head. When the coupling force between 1 and the brush handle 2 is larger, since there is no lateral coupling fitting structure between the brush head 1 and the brush handle 2, the phenomenon that the brush head 1 falls off the brush handle 2 and is pinched between teeth. It happens and becomes very inconvenient for the user.
(2) The brush handle 2 is generally manufactured and molded directly with a process plastic, which has high hardness, and the front end of the brush handle 2 is formed on the neck portion 22 having the smallest outer diameter as much as possible, but still has ideal elasticity. It is a blind spot in dental health because it cannot provide a material that is difficult to bend and cannot clean the deep interdental space of the oral cavity.

  The main object of the present invention is to provide a fitting interdental brush in which the brush head and the brush handle are firmly coupled and the brush head does not possibly fall off.

  Another object of the present invention is to provide a fitting interdental brush that has a more elastic brush head and is easy to bend, and can easily clean the interdental area deep inside the user's oral cavity.

  In order to achieve the above object, the fitting interdental brush of the present invention includes a brush handle body, a sleeve, a brush head, and a covering plastic. The sleeve is coupled to one end of the brush handle body, and the sleeve is provided with a coupling hole extending therethrough along the longitudinal direction thereof. The brush head is wound with a bundle of brush bristles with a metal wire, and the end of the metal wire passes through the coupling hole of the sleeve and is then bent and fixed to the end surface of the sleeve end. The covering plastic covers and joins the joint part of the brush handle body and the brush head, and covers a part of the brush handle body and a part of the sleeve. As a result, the brush head is coupled to the sleeve and the brush handle body in the axial direction and the lateral direction, and there is no possibility of dropping off. In addition, a part of the brush neck is formed with the covering plastic, and it has good bending elasticity, so that it can be used to enter between the teeth deep inside the oral cavity of the user, and a good cleaning effect can be obtained.

The invention of claim 1 is a fitting interdental brush,
A brush handle body having a first end and a second end in a longitudinal direction thereof, and a sleeve having a first end and a second end in a longitudinal direction thereof, and a second end thereof Is connected to the first end of the brush handle body, and in the center of the sleeve is provided with a connecting hole penetrating from the first end to the second end, the sleeve,
A brush head, wherein the brush is wound around a bunch of bristles with a metal wire, the metal wire passes through the coupling hole of the sleeve, and is then bent and fixed to the end face of the second end of the sleeve. head,
A covering plastic, which covers and joins the joint of the brush handle body and the brush head, and covers the part of the brush handle body and part of the sleeve;
It is set as the fitting type interdental brush characterized by including.
The invention according to claim 2 is the fitting interdental brush according to claim 1, wherein an opening is provided at the first end of the brush handle body, and the shaft hole and the shaft hole are connected to the opening. The sleeve has a shaft tube and a second end located on the sleeve, the head portion of which is connected to the shaft tube, and the second end of the sleeve is inserted into the brush handle body through the opening. In addition, the head portion and the shaft tube are coupled to the coupling groove and the shaft hole, respectively, to provide a fitting type interdental brush.
The invention of claim 3 is a fitting interdental brush according to claim 1, wherein a plurality of recesses are provided on the outer periphery of the brush handle body, and at least one recess neck is also provided on the outer periphery of the shaft tube of the sleeve. And the covering plastic covers the joint part of the brush handle body and the sleeve, and covers the concave part and the recessed neck part to cover and bond the brush handle body and the sleeve. It is a fitting interdental brush.
The invention of claim 4 is the insertion type interdental brush according to claim 3, in which a part of the brush handle body protrudes from the surface of the covering plastic, thereby forming a protrusion having an anti-slip action. The fitting interdental brush is characterized by the above.
The invention according to claim 5 is the fitting type interdental brush according to claim 3, in which a part of the covering plastic protrudes from the surface of the brush handle body, thereby forming a protrusion having an anti-slip action. The fitting interdental brush is characterized by the above.

  The fitting interdental brush of the present invention includes a brush handle body, a sleeve, a brush head, and a covering plastic. The sleeve is coupled to one end of the brush handle body, and the sleeve is provided with a coupling hole extending therethrough along the longitudinal direction thereof. The brush head is wound with a bundle of brush bristles with a metal wire, and the end of the metal wire passes through the coupling hole of the sleeve and is then bent and fixed to the end surface of the sleeve end. The covering plastic covers and joins the joint part of the brush handle body and the brush head, and covers a part of the brush handle body and a part of the sleeve. As a result, the brush head is coupled to the sleeve and the brush handle body in the axial direction and the lateral direction, and there is no possibility of dropping off. In addition, since a part of the brush neck is formed with the covering plastic and has a good bending elasticity, it is used for the penetration between the teeth deep inside the user's mouth, and a good cleaning effect can be obtained.

  FIG. 3 is an exploded view of the fitting interdental brush of the present invention in a state where no covering plastic is shown, FIG. 4 is a combination view of the fitting interdental brush shown in FIG. 3, and FIG. FIG. 6 is a cross-sectional view of the fitting interdental brush shown in FIG. 5.

  As shown in the drawings, the fitting interdental brush B of the present invention includes a brush handle body 3, a sleeve 4, a brush head 5, and a covering plastic 6.

  The brush handle body 3 has a first end 31 and a second end 32 depending on the longitudinal direction thereof. The first end 31 is used for coupling with one end of the sleeve 4.

  The sleeve 4 has a first end 41 and a second end 42 according to the longitudinal direction thereof. The second end 42 is coupled to the first end 31 of the brush handle body 3, and the sleeve 4 has a first end in the center. A coupling hole 43 penetrating from the end 41 to the second end 42 is provided.

  As for the connection between the sleeve 4 and the brush handle body 3, in the embodiment of the connection structure, an opening 33 is provided at the first end 31 of the brush handle body 3, and the shaft hole 34 and the shaft hole are formed in the opening. There is provided a coupling groove 35 connected to the. The sleeve 4 has a second end 42 located at the sleeve 4 with the shaft tube 44 and the head portion 45 connected to the shaft tube. The second end 42 of the sleeve 4 is inserted into the brush handle body 3 through the opening 33, and the head portion 45 and the shaft tube 44 of the sleeve 4 are connected to the coupling groove 35 and the shaft hole 34 of the brush handle body 3, respectively. .

  The above-mentioned brush head 5 is wound around a plurality of bundles of bristles 52 with a metal wire 51 as in the conventional one, but the end 53 of the metal wire 51 is bent after passing through the coupling hole 43 of the sleeve 4. The sleeve 4 is fixed to the end face of the second end 42, so that there is not only a coupling force penetrating in the axial direction between the brush head 5 and the sleeve 4, but also a transverse fitting coupling force at the same time. become.

  A plurality of recesses 36 are provided on the outer periphery of the brush handle body 3, and at least one concave neck 46 is provided on the outer periphery of the shaft tube 44 of the sleeve 4. The covering plastic 6 is composed of the brush handle body 3 and the sleeve. In addition to covering the four joint portions, the concave portion 36 and the concave neck portion 46 are simultaneously covered and the brush handle body 3 and the sleeve 4 are covered and joined. A portion of the sleeve 4 covering the covering plastic 6 is simultaneously formed on the brush neck of the entire interdental brush.

  Further, a part of the brush handle body 3 protrudes from the surface of the covering plastic 6 to form protrusions 37. When the protrusions 37 are gripped and used, the protrusions 37 have an anti-slip action. Alternatively, a part of the covering plastic 6 is designed to protrude from the surface of the brush handle main body 3, and a protrusion having a non-slip function is formed.

  The following method is adopted as a combination and manufacturing method of the fitting interdental brush of the present invention. First, the brush head 5 passes the metal wire 51 through the coupling hole 43 of the sleeve 4 and bends the end portion 53 of the metal wire 51 to fix it to the end surface of the second end 42 of the sleeve 4. Next, the second end 42 of the sleeve 4 is inserted into the brush handle body 3 through the opening 33, and the head portion 45 and the shaft tube 44 of the sleeve 4 are connected to the coupling groove 35 and the shaft hole 34 of the brush handle body 3, respectively. . Finally, the members are put into a mold, covered with an injection molding facility, and the plastic 6 is packed into the joint portion of the brush handle body 3 and the sleeve 4 and into the recess 36 and the recessed neck portion 46 of the brush handle body 3 and the sleeve 4. .

  When using the fitting interdental brush of the present invention, as in the conventional case, it has the brush handle body 3 and the covering plastic 6 by hand, and moves the brush head 5 back and forth in the interdental gap or narrow gap, The bristles 52 of the brush head 5 are used to clean the dirt accumulated in the interdental gaps or narrow gaps. The brush head 5 is connected to the sleeve 4 and the brush handle main body 3 in the axial direction and the lateral direction by the structure of the fitting interdental brush of the present invention. There is no fear. In addition, the fitting interdental brush of the present invention forms part of the brush neck with plastic covering and has good bending elasticity, so it is used for interdental penetration deep into the oral cavity and obtains a good cleaning effect be able to.

It is a side view of the conventional interdental brush. It is sectional drawing of the interdental brush shown in FIG. It is an exploded view of this invention insertion type interdental brush of the condition which does not show covering plastic. It is a combination figure of the fitting type interdental brush shown in FIG. It is the whole combination external view of this invention insertion type interdental brush. It is sectional drawing of the fitting type interdental brush shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Brush head 11 Metal wire 12 Brush bristle 2 Brush handle 21 Handle 22 Neck 23 Connection hole 3 Brush handle main body 31 First end 32 Second end 33 Opening 34 Shaft hole 35 Connection groove 36 Recess 37 Projection 4 Sleeve 41 First One end 42 Second end 43 Coupling hole 44 Shaft tube 45 Head portion 46 Concave neck portion 5 Brush head 51 Metal wire 52 Brush hair 53 End portion 6 Covering plastic

Claims (5)

In the fitting interdental brush,
A brush handle body having a first end and a second end in a longitudinal direction thereof, and a sleeve having a first end and a second end in a longitudinal direction thereof, and a second end thereof Is connected to the first end of the brush handle body, and in the center of the sleeve is provided with a connecting hole penetrating from the first end to the second end, the sleeve,
A brush head, wherein the brush is wound around a bunch of bristles with a metal wire, the metal wire passes through the coupling hole of the sleeve, and is then bent and fixed to the end face of the second end of the sleeve. head,
A covering plastic, which covers and joins the joint of the brush handle body and the brush head, and covers the part of the brush handle body and part of the sleeve;
A fitting interdental brush characterized by comprising   The fitting interdental brush according to claim 1, wherein an opening is provided at the first end of the brush handle body, a shaft hole and a coupling groove connected to the shaft hole are provided in the opening, The sleeve has a shaft tube and a second end located on the sleeve connected to the shaft tube, the second end of the sleeve is inserted into the brush handle body from the opening, and the head portion and A fitting interdental brush characterized in that a shaft tube is coupled to a coupling groove and a shaft hole, respectively.   The fitting interdental brush according to claim 1, wherein a plurality of recesses are provided on the outer periphery of the brush handle body, and at least one recess neck is provided on the outer periphery of the shaft tube of the sleeve. A fitting interdental brush characterized in that the plastic covers the joint portion of the brush handle body and the sleeve, and covers the concave portion and the recessed neck portion to cover and bond the brush handle body and the sleeve.   4. The insertion type interdental brush according to claim 3, wherein a part of the brush handle body protrudes from the surface of the covering plastic, thereby forming a protrusion having an anti-slip action. Type interdental brush. 4. The insertion type interdental brush according to claim 3, wherein a part of the covering plastic protrudes from the surface of the brush handle main body, thereby forming an anti-slipping projection. Type interdental brush.

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