JP3121384U - Toothbrush with dentifrice - Google Patents

Abstract

Disclosed is a toothbrush containing a dentifrice that can be used with a commercially available toothpaste and can be compacted even when the amount of dentifrice is increased.
In a toothbrush containing a dentifrice that can be supplied to a toothbrush portion by extruding a dentifrice in a storage chamber with a piston, the piston rod corresponding portion of the piston has cylindrical members with different diameters, 32, 34, and a termination member. 36 is provided with a multiple structure that can be expanded and contracted, and an annular outward projection 54, 62, 70 is provided at one end, and an inward projection 50, 56, 64 is provided at the other end. In order to prevent disengagement, a female screw part is provided on the inner side of the inward projection and a male screw part is provided on the outer side of the cylindrical member so that they can be screwed together. When the attachment and the knob 46 are turned, the male screw part and the female screw part move forward while being screwed together, the piston at the tip is pushed out to supply the dentifrice, and the piston can be retracted in the reverse direction.
[Selection] Figure 1

Description

  The present invention relates to a toothbrush with a dentifrice, and in particular, a commercially available toothpaste can be used, and the increase in the amount of dentifrice is not changed so much as the size of the grip portion where the accommodating portion exists is not changed. The present invention relates to a toothbrush with a compact dentifrice that can be performed.

Conventionally, as a toothbrush containing a dentifrice, a cartridge-type toothpaste has been used, and a type of toothpaste that is pushed out by a piston without using a cartridge has been used.
For example, this is a toothbrush described in JP-A-2001-57908.

  However, since the cartridge type must use a cartridge dedicated to the toothbrush, it is not easy to replenish when the toothpaste of the contents is lost, it lacks versatility, and there is a problem that the price is high, piston type If you try to increase the amount of dentifrice without changing the diameter of the dentifrice storage part, the storage part will expand, the stroke will increase, and the rod for pushing out the piston will protrude long back, so it will be bulky and compact There is also a problem that it is not preferable in terms of design.

  The toothbrush described in Japanese Patent Application Laid-Open No. 2003-304933 attempts to solve the above problem by attaching a cover that covers a rod protruding rearward so as to be able to go in and out of the grip part. However, since the cover itself protrudes long, the toothbrush is compact. There is a problem that it is not.

JP 10-113230 A JP 2001-57908 A JP 2003-304933 A

  The problem to be solved is to make it possible to use a commercially available toothpaste because it is not easy to replenish when the toothpaste of the contents is lost, lacks versatility, and increases the price. In addition, since the problem to be solved by the piston type is bulky and not compact, it is to make the shape compact and to maintain a compact shape even if the amount of toothpaste is increased.

  By the way, while the inventors of the present application have continued various studies to solve the above-mentioned problems, they have conceived that a portion corresponding to a rod that advances and retracts a piston has a multiple structure of a cylindrical member that can expand and contract, The present invention has been completed.

  The present invention was made against this background, and the purpose of the present invention is to increase the versatility of toothpaste replenishment by allowing the use of commercially available toothpastes, and at the same time reduce the cost of replenishing toothpastes. To provide a toothbrush with a dentifrice that can be used, and secondly, to provide a toothbrush with a dentifrice that is compact and easy to handle so as not to be bulky, and can maintain a compact shape even if the amount of toothpaste is increased That is.

The present invention made to achieve the above object is configured as follows.
A toothbrush part having a handle part is detachably connected to one end of the grip part, and the dentifrice storage chamber formed in the handle part communicates with a supply path that opens in the toothbrush part through the handle part of the toothbrush part. In the toothbrush with a dentifrice provided with a delivery mechanism that can supply a predetermined amount of dentifrice to the toothbrush part by rotating the operation part disposed on the other end side of the grip part,
The delivery mechanism is arranged in such a manner that a plurality of cylindrical members having different diameters can be extended and contracted, and the cylindrical member has an annular protrusion protruding outward at the end near the operation portion, and opposite to the operation portion. An inwardly-shaped annular protrusion is formed at each end of the cylindrical member, a male threaded part is formed outside the cylindrical member, and a female threaded part is formed on the inner diameter side of the inwardly-shaped annular projecting part. The cylindrical member located inside is screwed into the male threaded portion, and the outer annular projection and the inward annular projection come into contact with each other, so that each cylindrical member The cylindrical member with the smallest diameter is limited in extension, and at least the outwardly protruding annular protrusion and the outer male screw part are provided. The cylindrical member with the largest diameter is provided with at least an inwardly annular shape. Provide a female thread on the protrusion and the inner diameter side of the protrusion, and the smallest diameter At the tip of the cylindrical member, a piston for slidably fitting into the storage chamber and pushing out the dentifrice is attached, and the cylindrical member having the largest diameter is not movable in the axial direction and can be rotated. The operation part is fixed in a state, and the cylindrical part is moved sequentially by rotating the operation part, the piston is advanced, and the toothpaste can be supplied to the toothbrush part, and the piston is retracted by rotating in the reverse direction. Toothbrush with dentifrice that was made to do.
B. A toothbrush containing a dentifrice that uses a solid member having the same outer contour instead of the cylindrical member having the smallest diameter in the toothbrush described in the section A.
A toothbrush containing a dentifrice, wherein the bottomed cylindrical cap capable of covering the toothbrush portion in a sealed state can be detachably attached to the grip portion.

The toothbrush with a toothpaste of the present invention has a toothbrush part having a handle part that can be attached to and detached from the grip part. There are advantages that it becomes easy, versatility is enhanced, and maintenance costs can be reduced. In addition, since the part corresponding to the piston rod that moves the piston has a multiple structure that can expand and contract, the amount of dentifrice is increased, and the rod does not protrude outside the grip even if the stroke is increased, making it compact There is an advantage that a simple shape can be maintained.

  (1) To provide a toothbrush with a dentifrice that can increase the versatility of toothpaste replenishment by making it possible to use commercially available toothpaste, and at the same time reduce the cost of replenishing toothpaste. (2) The purpose of the present invention is to provide a toothbrush with a dentifrice that can be made compact and easy to handle even if the amount of dentifrice is increased, and the toothbrush with a handle is attached to and detached from the grip. This is achieved by a configuration in which the portion corresponding to the rod of the piston for sending the dentifrice is made to be a multiple structure of extendable cylindrical members.

In FIG. 1, reference numeral 10 denotes a grip portion, and a toothbrush portion 14 having a handle portion 12 is detachably attached by a screw portion. As shown in FIG. 2, an internal thread portion 13 is formed at one end of the handle portion 12, and a dentifrice supply passage 15 that passes through the handle portion 12 and opens to the toothbrush portion 14 is communicated with the internal thread portion 13. 8 is a chamber for dentifrice (toothpaste).
(FIG. 1 (b) shows a state in which the piston 38 for feeding the dentifrice protrudes most, and the accommodating chamber 8 is the narrowest.)

  As shown in FIG. 3, the grip portion 10 is formed of a cylindrical member. A male screw portion 16 is formed at one end portion of the grip portion 10 and can be screwed to the female screw portion 13 of the handle portion 12. In addition, an end cap 20 having a circular hole 18 is attached to the other end portion of the grip portion 10, and a stepped portion formed at one end of the end cap 20 is fitted and fixed with an adhesive. Done. Reference numeral 24 denotes an O-ring groove.

  A bottomed cylindrical cap 26 shown in FIG. 4 is detachably and slidably fitted to the grip part 10 so as to cover the toothbrush part 14, but as shown in FIG. A cap-stopping O-ring 22 is attached to the O-ring groove 24 so that the end portion of the cap 26 abuts so as not to enter further. The cap 26 holds the toothbrush portion 14 in a sealed state, and is necessary for preventing the dentifrice from consolidating in the feeding path and its opening.

   As shown in FIG. 1, a delivery mechanism 28 for delivering the dentifrice is provided in the grip portion 10. As shown in FIG. 5A, the delivery mechanism 28 includes a cylindrical member 32 incorporated in a cylindrical member 30 having the largest diameter, and the cylindrical member 34 is provided in the cylindrical member 34. The end members 36 are sequentially assembled in the order of size. After these are assembled, the stepped portion of the end cap 42 is fitted into the open end of the cylindrical member 30 and fixed with an adhesive. The cylindrical member 30 is rotatably fitted in the grip 10, and the shaft-shaped protrusion 44 of the end cap 42 is rotatable in the circular hole 18 of the end cap 20 attached to one end of the grip 10. And a knob 46 as an operating portion is fitted into the shaft-like protrusion 44 so that no gap is formed between the end cap 20 and fixed by a pin 48. Therefore, the cylindrical member 30 rotates in the grip portion 10 by turning the knob 46, but does not move in the axial direction.

As shown in FIG. 5B, the cylindrical member 30 is formed with an inwardly-shaped annular protrusion 50 on the left end side thereof, and with an internal thread portion 52 on the inner diameter side thereof. As shown in FIG. 5C, the cylindrical member 32 is formed with an outward annular protrusion 54 on the right end side and an inward annular protrusion 56 on the left end side. A female screw portion 58 is provided on the inner diameter side, and a male screw portion 60 that can be screwed into the female screw portion 52 is provided outside the cylindrical member 32.
Similarly, as shown in FIG. 5 (d), the cylindrical member 34 is formed with an outward annular protrusion 62 on the right end side and an inward annular protrusion 64 on the left end side. A female screw portion 66 is provided on the inner diameter side, and a male screw portion 68 that can be screwed into the female screw portion 58 is provided outside the cylindrical member 34.

  As shown in FIG. 5E, the end member 36 is not a cylindrical member but is made of a solid material, that is, a so-called stripping material, and an outwardly projecting annular protrusion 70 is formed on the right end side of the end member 36. A male screw portion 72 that can be screwed into the female screw portion 66 is provided on the outer side, a diameter of the tip end side is reduced to form a stepped shape, and a male screw portion 74 is provided at the tip end portion. A piston 38 is attached to the end and tightened with a nut. Reference numeral 40 denotes an O-ring. The end member 36 may be a cylindrical material, but is not a solid material, and is a solid material (peeling material).

When the knob 46 is turned, the cylindrical member 30 does not move in the axial direction, as can be seen from FIGS. 1 and 5, so that the cylindrical member is attached to the female threaded portion 52 of the inwardly-shaped annular protrusion 50. Since the 32 male screw portions 60 are screwed together, the cylindrical member 32 moves forward or backward depending on the rotation direction of the knob 46. At that time, the dimension of the outward annular protrusion 54 is determined so as not to interfere with the inner wall of the cylindrical member 30 so as not to hinder the movement of the cylindrical member 32.
Similarly, when the cylindrical member 32 is rotated, the cylindrical member 34 that is screwed with the cylindrical member 32 moves forward or backward depending on the direction of rotation, but the outward annular protrusion 62 of the cylindrical member 34 is The dimensions are determined so as not to interfere with the inner wall of the cylindrical member 32. The relationship between the inner wall of the cylindrical member 34 and the outward annular protrusion 70 of the terminal member 36 is the same.

The action of the dentifrice in the storage chamber 8 being sent to the toothbrush portion 14 is as follows. FIG. 1 (a) shows the position where the piston 38 is most advanced in the grip portion 10, that is, the final position where the dentifrice in the storage chamber 8 is delivered. First, the action of retracting the piston 38 will be described. .
In addition, if the inwardly facing annular protrusion of the member that contacts the inside and outside due to the rotation contacts the outwardly facing annular protrusion, the relative rotation is not possible any more, and both of them rotate as a unit. become. Further, although the piston 38 can move in the axial direction of the grip portion 10, it does not rotate freely due to the resistance of the O-ring 40. The thread part of each part is demonstrated as a right-hand thread.

  1 and 5, when the knob 46 is rotated in the clockwise direction (clockwise direction) when viewed from the right side in the drawing, the cylindrical member 32 that is screwed with the cylindrical member 30 is retracted rightward but the end cap. When it comes into contact with 42, it can no longer be retracted, and both rotate integrally. Then, the cylindrical member 32 is rotated, and the cylindrical member 34 that is screwed with the cylindrical member 32 is moved backward in the right direction. Further, when the knob 46 continues to rotate, the terminal member 36 moves backward in the right direction, and when it comes into contact with the end cap 42, the backward movement stops. Accordingly, the piston 38 is in the most retracted position. At that time, the cylindrical members 32 and 34 and the terminal member 36 are accommodated in the cylindrical member 30 to form a compact structure. In the case of moving the piston with a conventional piston rod, if the amount of dentifrice is increased, it is necessary to lengthen the stroke of the piston, and the rod also becomes longer, so the structure is not compact. In the embodiment, about 1/4 of the maximum extension is sufficient, and there is an advantage of being compact.

  A dentifrice is filled in the storage chamber 8 in the above state. To deliver the dentifrice, the reverse of the above method can be performed. That is, when the knob 46 is rotated counterclockwise (counterclockwise), the terminal member 36 first protrudes from the cylindrical member 34, and when it is fully protruded, the cylindrical member 34 then protrudes from the cylindrical member 32, and so on. Thus, the cylindrical member 32 protrudes from the cylindrical member 30, and the piston 38 advances in the left direction. In this way, the amount of the dentifrice in the storage chamber 8 can be supplied to the opening of the toothbrush portion through the feeding path 15 in an amount used for brushing.

In the above embodiment, the cylindrical member (including the terminal member) for moving the piston has a four-stage multiple structure, but the number of stages can be increased or decreased as appropriate.
Although the embodiment of the present invention has been described above, the present invention is not limited to such an embodiment, and it is needless to say that the present invention can be carried out in various modes without changing the gist of the present invention. .

  The structure which makes the part equivalent to the piston rod of the toothbrush containing the toothpaste of this invention the multiple structure, such as a cylindrical member, is applicable also to things other than a toothbrush.

(A) and (B) are a plan view showing an embodiment of the present invention and a front view partially broken. It is the front view which fractured | ruptured a part which shows one component of the Example. (A) and (B) are a sectional view and a right side view of components used in the embodiment. (A) and (B) are a front view and a right side view, partly in section, showing still another part of the embodiment. (A)-(e) is an assembly sectional view showing a part of the mechanism of the embodiment, and a sectional view and a front view of parts used in the mechanism.

Explanation of symbols

DESCRIPTION OF SYMBOLS 8 Storage chamber 10 Grasping part 12 Handle part 14 Toothbrush part 28 Delivery mechanism 30 Cylindrical member 32 Cylindrical member 34 Cylindrical member 36 Termination member 38 Piston 46 Knob (operation part)
50 Projection (inward)
52 Female thread 54 Projection (outward)
56 Projection (Inward)
58 Female thread 60 Male thread 62 Projection (outward)
66 Female thread 70 Projection (outward)
72 Male thread

Claims (3)

A toothbrush portion having a handle portion is detachably connected to one end of the grip portion, and a dentifrice storage chamber formed in the handle portion is communicated with a supply path that opens into the toothbrush portion through the handle portion of the toothbrush portion. In the toothbrush with a dentifrice provided with a delivery mechanism that can supply a predetermined amount of a dentifrice to the toothbrush portion by rotating an operation portion arranged on the other end side of the grip portion,
The delivery mechanism is arranged in a state where a plurality of cylindrical members having different diameters are stretchably overlapped with each other, and the cylindrical member has an annular protrusion protruding outward at an end near the operation unit,
An inward annular protrusion is formed at the end opposite to the operation part, and a male thread part is formed on the outside of the cylindrical member, and a female thread is formed on the inner diameter side of the inward annular protrusion. Are formed so as to be screwed into the male threaded portion of the cylindrical member located inside, and each of the outward annular protrusion and the inward annular protrusion abut each other. Stretching of the cylindrical member is restricted, and at least the outwardly facing annular protrusion and the outer male threaded portion are provided for the cylindrical member having the smallest diameter, and at least the inward direction is provided for the cylindrical member having the largest diameter. A piston for extruding the toothpaste by providing an annular protrusion and a female thread part on the inner diameter side of the protrusion, and slidably fitting into the receiving chamber at the tip of the cylindrical member having the smallest diameter. The cylindrical member with the largest diameter attached is the axial direction The operation part is fixed in a state where it cannot move and can be rotated, and by rotating the operation part, the cylindrical member is sequentially moved to advance the piston so that the toothpaste can be fed to the toothbrush part, in the reverse direction. A toothbrush with a dentifrice that is swung to retract the piston. The toothbrush according to claim 1, wherein a solid member having the same outer contour is used instead of the cylindrical member having the smallest diameter. The toothbrush according to claim 1 or 2, wherein the bottomed cylindrical cap capable of covering the toothbrush portion in a sealed state can be detachably attached to the grip portion.

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