JP3203706U - Push-back replacement brush toothbrush - Google Patents

Abstract

A toothbrush of a push-back type replacement brush that achieves simultaneous engagement, release and removal of the brush. A grip handle, a brush handle part front stage 20, a pressing mechanism, and a brush 40 are configured. The brush handle part front stage is connected to the grip so as to be capable of being pushed and operated, and the brush handle part front stage includes a brush receiving base. The holding mechanism includes a pressing piece 31 and a hook fixing piece 32 that are stacked on each other, and is installed in the front stage of the brush handle part. One end of the pressing piece and the hook fixing piece is fixed to the grip, and the other end of the hook fixing piece is Engage with the brush and the front part of the brush handle. When the front stage of the brush handle part is pushed in the grip direction, the hook fixing piece releases the hook of the front part of the brush handle part and the brush, and at the same time, the pressing piece pushes the brush away from the cradle. [Selection] Figure 4

Description

  The present invention relates to a toothbrush, and particularly relates to a toothbrush of a pushback type replacement brush.

At present, most of the toothbrushes on the market are made of plastic material, and their service life is usually about three months. The toothbrush bristles continue to rub against the teeth, causing a certain amount of wear. However, since the cleaning function is reduced and bacteria are likely to be generated, it must be discarded. However, this is a waste of resources and not good for environmental protection.

The industry has designed toothbrushes that replace brushes to effectively ameliorate the aforementioned problems. It mainly includes a grip and a brush connected to the grip. The brush includes a pedestal connected to the grip and a toothbrush piece in which brush bristles are planted. Among them, the pedestal and the toothbrush pieces are provided with fitting grooves and fitting portions that are fitted and joined to each other, and the toothbrush pieces provided with the brush bristles are fitted and joined on the pedestal to match the toothbrushes of the replacement brush.

Japanese Utility Model Publication No. 2-68724

The problem to be solved is that, in the actual use process, if the fitting groove is used for fixing, the insertion hole is loosened and easily detached after a certain period of use.

  The present invention includes a grip, a front stage of a brush handle portion, a pressing mechanism, and a brush. The front stage of the brush handle is connected to the grip. The front stage of the brush handle part is provided with a cradle. The holding mechanism is overlapped with each other and further includes a pressing piece and a hook fixing piece installed at the front stage of the brush handle portion, and one end of the pressing piece and the hook fixing piece is fixed to the grip. The brush is installed in the cradle in a replaceable manner, and the other end of the hook fixing piece is hooked to the brush and the front part of the brush handle part. Among them, the most important feature is that when the front part of the brush handle part is pushed in the grip direction, the hook fixing piece releases the hook part of the front part of the brush handle part and the brush, and at the same time the push piece pushes the brush away from the cradle. To do.

  The toothbrush of the push-back type replacement brush of the present invention has an advantage that the front stage of the brush handle part is pushed into the grip, and at the same time, the engagement and release of the brush are achieved, and the convenience of operation is further enhanced.

It is a toothbrush external appearance figure of the pushback type | formula replacement brush of this invention. It is a toothbrush exploded view of the pushback type replacement brush of this invention. It is another angle visual angle exploded view of the toothbrush of the pushback type | formula replacement brush of this invention. It is assembly sectional drawing of the toothbrush of the pushback type | formula replacement brush of this invention. FIG. 3 is a cross-sectional view of the assembly mechanism portion of the pressing mechanism and brush according to the present invention. It is a toothbrush use state sectional drawing of the pushback type | formula replacement brush of this invention. It is sectional drawing according to the toothbrush use state of the pushback type | formula replacement brush of this invention. It is a three-dimensional external view of another Example of this invention.

It is an object of the present invention to provide a toothbrush for a push-back type replacement brush that pushes the front stage of the brush handle part into the grip and simultaneously achieves release and release of the brush and further improves the convenience of operation.

In order to achieve the above object, a toothbrush of a pushback type replacement brush of the present invention is provided. It includes a grip, a front part of the brush handle part, a holding mechanism and a brush. The front stage of the brush handle part is connected to the grip in a movable manner, and the front stage of the brush handle part includes a cradle. The pressing mechanism includes a pressing piece and a hook fixing piece that are stacked on each other and connected to the front stage of the brush handle portion, and one end of the pressing piece and the hook fixing piece is fixed to the grip. The brush is replaceable and installed on the cradle, and the other end of the hook fixing piece is engaged with the brush and the brush handle part front stage. Among them, the front part of the brush handle part is pushed in the grip direction, and the front part of the brush handle part is pushed in the grip direction, the hook fixing piece releases the hook between the front part of the brush handle part and the brush, and the push piece receives the brush at the same time. Push away from the.

The present invention further has the following effects. The mounting effect is achieved by mutual assembly of the engaging projection of the rotating arm, the insertion groove, and the locking groove. The engaging edge of the grip and the engaging protrusion at the front stage of the brush handle part are engaged with each other to limit the action. By each elastic hook, a stop slope is pressed down and labor is saved. Each elastic hook engages in the lateral communication groove and the engaging groove, and when the brush bristles move up and down, left and right with respect to human teeth, the brush is stably fixed on the cradle and loosened. Does not cause a failure such as separation.

Detailed description and technical contents of the present invention will be described below together with diagrams, but the diagrams are provided only for reference and do not limit the present invention.

As shown in FIGS. 1 to 5, the present invention provides a toothbrush for a push-back type replacement brush, which includes a grip 10, a brush handle portion front stage 20, a holding mechanism 30, and a brush 40.

The grip 10 has an elongated shape made of a material such as plastic, and forms a storage space 11 at the center position on the front side of the grip 10. In addition, the grip 10 has a plug that communicates with the storage space 11 on the front side of the rear surface of the grip 10. A groove 12 (see FIG. 3) is installed, and a plurality of bolt screws 13 and hooking edges 14 (see FIG. 4) are installed at intervals above the inner wall of the storage space 11.

The brush handle portion front stage 20 is set by being pushed into a storage space 11 formed at the front side position of the grip 10 and inserted in a movable manner. The brush handle portion front stage 20 may be made of a plastic material. A perforation 21 (see FIG. 4) that communicates forward and backward along the length direction is formed, and a receiving base 22 is provided on the front side of the front stage 20 of the brush handle portion, and the receiving base 22 is provided on the lower base 221 and the lower base 221. Correspondingly, an upper base 222 for fixing the cover is provided.
A lateral communication groove 223 and a lateral communication groove 224 that communicate with the vertical communication groove 223 are formed on the end surface of the upper base 222 facing the lower base 221, and a triangular convex portion 225 is formed in the middle of the vertical communication groove 223. Install convexly. Further, stop slopes 226 (see FIG. 3) are formed at positions up to the lateral communication groove 224 along both sides of the triangular convex portion 225, respectively. Moreover, the latching convex part 23 is installed in the rear side surface of the brush handle part front | former stage 20, and the latching convex part 23 latches with the above-mentioned latching edge 14 mutually. Further, an insertion hole 24 (see FIG. 4) is provided on the rear side of the brush handle portion front stage 20.

The holding mechanism 30 includes a pressing piece 31, a hook fixing piece 32, a pressing part 33, a compression spring 34, and a rotating arm 35. Each of the pressing piece 31 and the hook fixing piece 32 is an elongated plate piece made of a metal material, and a pair of elastic hooks 321 are formed at the front end of the hook fixing piece 32, and each elastic hook 321 is just a triangle. Form. The hook fixing piece 32 overlaps above the pressing piece 31, and further, a fixing component such as a screw is inserted and fixed to the grip 10 with the above-described bolt screws 13. The front stage of the pressing piece 31 and the elastic hooks 321 are placed in the upward communication grooves 223 and the lateral communication grooves 224 of the upper base 222, and the elastic hooks 321 are located between the triangular convex portions 225 and the stop slopes 226. The corner ends of the elastic hooks 321 are exposed to the outside from the lateral communication grooves 224, respectively.

The pressurizing component 33 and the compression spring 34 are stored in an interconnected manner in the bottom of the storage space 11 described above, and the pressurizing component 33 extends upward from the top end of the stepped round rod 331 and the stepped round rod 331. The engagement stop stage 332, the convex column 333 extending upward from the uppermost end of the engagement stop stage 332, and the semicircular block 334 extending forward from the uppermost part of the engagement stop stage 332 are provided. The compression spring 34 is elastically sandwiched between the stepped round rod 331 and the bottom wall 11 of the storage space 11 of the grip 10, and the convex column 333 is inserted into the insertion hole 24 of the brush handle portion front stage 20, and the semicircular lump 334 is inserted. Is attached to the lower end of the front stage 20 of the brush handle part, and a locking groove 335 is provided in the engagement stop stage 332. The rotary arm 35 is pivotally provided on the grip 10, and the rotary arm 35 is provided with a hooking projection 351 (see FIG. 4) that is inserted into the insertion groove 12 of the grip 10 and engages with the locking groove 335.

The brush 40 includes a brush base 41 and a large number of brush hairs 42 installed on the brush base 41. The brush base 41 is installed in the above-described receiving base 22 in a replaceable manner, and both sides of the brush base 41 are respectively provided with engaging grooves 411 at positions corresponding to the above-described lateral communication grooves 224, and each of the above-described elastic hooks 321 is laterally arranged. The communication groove 224 and the engagement groove 411 are engaged and fixed. When the user grips the grip 10 and moves the hairs 42 of the brush 40 up and down, left and right with respect to the human teeth, the brush 40 is stably fixed by the cradle 22 and loosened or separated. The safety at the time of use is further improved without causing any problems.

As shown in FIGS. 6 and 7, in use, the rotary arm 35 is lifted upward with the pivoted portion as the center of rotation, and the engaging projection 351 is extracted from the locking groove 335 and the insertion groove 12. The brush handle front stage 20 is pushed into the storage space 11 inside the grip 10. At this time, since the pressing piece 31 and the latching fixing piece 32 are fixed and do not move, the receiving base 22 moves downward, and the stop sloping surface 22 pushes the elastic hooks 321 inward to enter the corners of the elastic hooks 321. The end moves from the engaging groove 411 and the lateral communication groove 224 of the brush base 41, and further, the engagement between the brush base 41 and the receiving base 22 is released, and at the same time, the uppermost edge of the brush base 41 is pressed by the pressing piece 31. Is pushed away from the cradle 22.

As shown in FIG. 8, the toothbrush of the push-back type replacement brush according to the present invention is provided with a concave hole 15 communicating with the storage space 11 below the back side of the grip 10 in addition to the above-described embodiment, and pressurization. A locking hole 336 is installed in the stepped round rod 331 of the component 33. In this embodiment, the lid 36 replaces the rotary arm 35 of the above-described embodiment. The lid 36 includes a positioning column 361 and is pushed toward the storage space 11 of the grip 10 in the brush handle portion front stage 20. The locking hole 336 is just fitted into the concave hole 15, and at that time, the lid body 36 is pushed into the concave hole 15, and the stereotactic column 361 is inserted into the locking hole 336, whereby the brush handle part front stage 20 and the grip 10 A combination of positioning is achieved.

As indicated above, the pushback toothbrush of the present invention achieves its intended use and ameliorates the known drawbacks. In addition, because of its novelty and inventive step, it perfectly meets the requirements for utility model application.

DESCRIPTION OF SYMBOLS 10 Grip 11 Storage space 12 Insertion groove 13 Bolt screw 14 Engagement edge 15 Recess hole 20 Brush handle part front stage 21 Perforation 22 Receiving base 221 Lower base 222 Upper base 223 Side communication groove 224 Horizontal communication groove 225 Triangle convex part 226 Stop slope 23 Locking convex part 24 Insertion hole 30 Locking mechanism 31 Pushing piece 32 Engagement fixing piece 321 Elastic hook 33 Pressurizing part 331 Stepped round rod 332 Engagement stop stage 333 Convex pillar 334 Semi-circle lump 335 Locking groove 336 Locking Hole 34 Compression spring 35 Rotating arm 351 Engaging projection 36 Lid 361 Stereotactic column 40 Brush 41 Brush base 411 Engaging groove 42 Brush hair

Claims (11)

In the toothbrush of the push-back replacement brush,
Grip,
A brush handle part front stage which is connected to the grip so as to be able to be pushed in and includes a brush receiving base,
A pressing mechanism in which a pressing piece and a hook fixing piece are overlapped with each other and inserted into the front stage of the brush handle part, and one end of the pressing piece and the hook fixing piece is fixed to the grip,
It is installed on the cradle in a replaceable manner, and the other end of the engagement fixing piece is provided with a brush that engages with the front stage of the brush handle portion,
By pushing the front stage of the brush handle part in the grip direction, the hook fixing piece releases the hook of the front part of the brush handle part and the brush, and simultaneously presses the brush with the push piece from the cradle. A toothbrush of a pushback type replacement brush characterized by being separated so as to separate.   The grip forms a storage space, and the holding mechanism further includes a pressure component and a compression spring connected to the pressure component, and the pressure component and the compression spring are stored in the storage space. Furthermore, the toothbrush of the pushback type | formula replacement brush of Claim 1 further elastically clamped between the said brush handle part front stage and this grip.   The grip has an insertion groove that communicates with the storage space, the holding mechanism further includes a rotating arm that pivots the grip, and the pressure component has a locking groove, and the rotating arm The toothbrush of the push-back type replacement brush according to claim 2, further comprising a hooking convex portion that is inserted into the insertion groove and engages with the locking groove.   The pushback according to claim 2, wherein a bolt screw is installed inside the storage space of the grip, and the pressing piece and the engaging fixing piece are fixed with the bolt screw by inserting a screw fixing part. Toothbrush of a remodeling brush.   3. The holding space of the grip is provided with a hooking edge inside, and a rear side of the front stage of the brush handle part is provided with a locking convex part that is hooked and fixed to the hooking edge. The toothbrush of the push-back type replacement brush described.   An insertion hole is provided in the front stage of the brush handle part, and the pressure part includes a stepped round rod, a hook stop stage extended from the stepped round rod, and a convex column extended from the hook stop step. The toothbrush of the push-back type replacement brush according to claim 2, wherein the attached round rod elastically stops the compression spring, and the convex column is inserted in correspondence with the insertion hole. The grip has a concave hole communicating with the storage space on the back side,
The holding mechanism includes a lid that closes the recessed hole, and the pressing component of the holding mechanism is provided with a locking hole toward the recessed hole,
The lid is provided with a stereotaxic column corresponding to the locking hole,
3. The toothbrush of a pushback type replacement brush according to claim 2, wherein the lid body is fitted into the concave hole to be pushed in and closed, and the stereotactic column is inserted into the locking hole and fixed.   2. The push according to claim 1, wherein a perforation reaching the cradle is provided in the front stage of the brush handle portion, and the hook fixing piece and the push piece are extended to the cradle in the perforation. Toothbrush with back-type replacement brush.   The pedestal includes a lower pedestal and an upper pedestal that covers the lower pedestal, and the upper pedestal is provided with a directional communication groove and a lateral communication groove that communicates with the directional communication groove. 9. The pushback type change according to claim 8, wherein the end portion forms a pair of elastic hooks, and the front stage of the pressing piece and each elastic hook are placed in the lateral communication groove and the lateral communication groove. Brush toothbrush.   A triangular protrusion protrudes inside the downward communication groove, and a stop slope is formed along both sides of the triangular protrusion to the lateral communication groove. The elastic hooks are respectively connected to the triangular protrusion and the triangular protrusion. The toothbrush of a pushback type replacement brush according to claim 9, wherein the toothbrush is set between the stop slopes.   The brush includes a brush base, the brush base is provided with a pair of engaging grooves, and the corner ends of the elastic hooks are projected and exposed from the lateral communication grooves to be engaged with the engaging grooves. The toothbrush of the pushback type | formula replacement brush of Claim 10 to do.

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