JP2000041739A - Inter-tooth brush - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lower a manufacturing cost and a product price by abandoning only a part damaged by use. SOLUTION: This brush is constituted of a holding body 4 where a tip part 5 is turned to a cylindrical shape and an insertion hole 10 is opened on the cylindrical wall 7 of the tip part 5, a brush body 1 where many brushes 3 projected in a radial direction are planted on the tip part peripheral surface of a wire 2 whose base end part is inserted to the insertion hole 10 from the outside, and a piece body 12 assembled freely slidably and fittably in an axial direction inside the tip part 5 of the holding body 4 for bending the base end part of the wire 2 inserted inside the tip part 5 and clamping it with the cylindrical wall 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brush for removing food residue clogged between teeth.

[0002]

2. Description of the Related Art To date, toothbrushes have been widely used as a tool for maintaining tooth cleanliness. However, there is dissatisfaction that the toothbrush cannot be reliably brushed between teeth, and the remaining food residue causes tooth decay. I was

[0003] As a means for cleaning between teeth,
Resin fiber yarns have been devised, but food yarns may not be reliably removed with these yarns. Therefore, interdental brushes in which resin brushes are planted on extremely fine metal wires have been developed.

[0004] For example, the invention disclosed in Japanese Utility Model Publication No. 6-33853 is a typical example, in which a brush is planted at the protruding tip of a metal wire embedded in a handle body, and the tapered handle is formed. The tip of the main body is strongly deformed with a finger, and the brush portion is inserted into the gap between the teeth and brushed.

In this type of product, a brush body in which a brush is planted at the distal end of a metal wire is formed in advance, and the handle body is integrally formed of synthetic resin in a form in which the base end portion of the metal wire is embedded. is there.

[0006]

However, the interdental brush has a problem that the brush portion is damaged or the metal wire portion is bent due to the use as described above, and it is difficult to use the brush. Was not gained.

However, the parts damaged by use are the brush and the metal wire, and there is no damage to the synthetic resin handle body.

[0008] In this type of product, it takes the most labor and cost to embed the metal wire and integrally mold the handle body with synthetic resin. It is extremely uneconomical to discard it.

Accordingly, the present invention is an interdental brush invented in order to solve the above-mentioned conventional dissatisfaction points and to meet the demand, wherein only a portion damaged by use can be discarded,
It is an object of the present invention to reduce manufacturing costs and product prices.

[0010]

According to the present invention, which solves the above-mentioned conventional problems, a gripping member having a cylindrical shape at the distal end and having an insertion hole formed in a cylindrical wall at the distal end, and a base end described above are provided. A brush body in which a number of brushes projecting radially from a peripheral surface of a distal end portion of a filament inserted from the outside into the insertion hole is implanted, and is slidably fitted in an axial direction within the distal end portion of the gripping body. And a bridge body that bends the base end of the filament inserted into the distal end and clamps between the base and the cylindrical wall.

[0011] Therefore, in the above invention, it is possible to grip the holding body, insert the brush body of the brush body projecting laterally from the tip end between the teeth, and brush the gap between the teeth. it can.

Since the brush main body and the gripping body are formed separately, if the brush main body is damaged by use, the piece is slid to release the base end of the filament, and the brush is released. Only the body can be replaced, and the brush body is inserted into the distal end of the gripping body, and the base body of the filament is inserted into the distal end of the gripping body and slid. Because it is sandwiched between the cylindrical wall and the bridge body, the assembling is firm.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of the present invention will be described. First, a brush main body 1 is made of a large number of synthetic resins made of a large number of synthetic resins projecting radially on the peripheral surface of the distal end portion of a filament 2 made of a thin metal wire. This is a configuration in which the brush 3 is planted.

The gripping body 4 has a substantially rectangular rod shape made of a synthetic resin, but has a cylindrical end portion 5 and an opening portion 6 at the end.

That is, in the embodiment shown in FIG.
The top wall 7, both side walls 8, and the bottom wall 9 have a rectangular tube shape.
An insertion hole 10 is formed at the distal end, and a locking hole 11 is formed at the base end of the bottom wall 9. The locking hole 11 has a roughly gourd shape in which the base end is a fixed locking hole 11a, the leading end is a holding locking hole 11b, and these are integrated by a connecting hole 11c.

Next, the frame body 12 is fitted into the distal end portion 5 of the above-mentioned gripping body 4 through the distal end opening 6 so as to be slidable along the axial direction. ,
A locking ridge 13 that locks into the locking hole 11 described above protrudes, and a groove 14 is provided on the upper surface along the length direction. The groove 14 has a shallow groove 14a at the distal end and a deep groove 14b at the proximal end.

FIG. 1 (a) shows that the frame 12 is
In this state, the base end of the frame body 12 is slightly forcibly fitted into the distal end portion 5 from the distal end opening portion 6 to form the locking ridge 13.
Is locked in the holding locking hole 11b of the locking hole 11. By this locking, the piece 12 is prevented from slipping out of the distal end opening 6 without permission (see FIG. 1B).

Then, in the posture shown in FIG.
When the base end of the filament 2 formed by the metal wire of the brush body 1 is inserted through the insertion hole 10, the base end is inserted into the groove 1 of the bridge body 12.
4, a deep groove 14b which is a continuous portion with the shallow groove 14a,
It is located while maintaining its linear form.

Then, as shown in FIG. 1 (c), when the frame 12 is further inserted and slid, the locking ridge 13 is guided by the connecting hole 11c, and the linear filament 2 is formed into a shallow groove 14a and a deep groove 14b. 1b, and bends at a right angle as shown in FIG. 1 (d).

The base end of the wire 2 bent at a right angle is guided by the shallow groove 14a, is located between the inner surface of the top wall 7 which is a cylindrical wall, and is sandwiched via the bridge 12. The brush body 1 is firmly assembled to the holding body 4, and in the state of FIG. 1D, the locking ridge 13 is fitted and locked in the fixed locking hole 11a, so that the bridge body 12 moves. And a safe brushing operation is achieved.

Therefore, the depth of the shallow groove 14a is approximately equal to the thickness of the filament 2, and the depth of the deep groove 14b is set according to the length of the base end of the filament 2.

[0022]

As described above, the interdental brush of the present invention has a simple structure, but has a brush body which is easily damaged and a gripping body which is hardly damaged by use. It is easy to replace only the brush body, greatly reducing the manufacturing and selling costs, making it extremely economical, and the gripping of the brush body by the gripping body is reliable and easy to operate. And many other excellent effects.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of an interdental brush of the present invention.

FIG. 2 shows the entire interdental brush of the present invention;
(A) is a plan view, (b) is a side view, and (c) is a bottom view.

[Explanation of symbols]

1; brush body, 2; filament, 3; brush, 4; gripper,
5; tip end; 6; opening; 7; top wall, 8; side wall, 9; bottom wall, 10; insertion hole, 11; locking hole, 12;
Locking ridge, 14; groove.

Claims (1)

[Claims] 1. A gripper (4) having a distal end portion (5) having a cylindrical shape and having an insertion hole (10) formed in a cylindrical wall (7) of the distal end portion (5), and a base end portion having the insertion hole. A brush body (1) having a large number of radially projecting brushes (3) implanted on a peripheral surface of a distal end portion of a filament (2) inserted from the outside of (10); The distal end portion (5) is assembled so as to be freely slidably fitted in the axial direction, and the base end portion of the wire (2) inserted into the distal end portion (5) is bent to form a connection with the cylindrical wall (7). An interdental brush comprising a bridge (12) sandwiched between the teeth.