JPH0312265Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is a tooth that allows the brush part to be easily replaced, provides stable fixed support for the brush part, and allows the use of various angles relative to the teeth. Regarding a toothbrush for cleaning between spaces.

[Conventional technology]

Conventionally, as a toothbrush for interdental cleaning, for example,
There is one in which a soft member is provided at the head of the tip of the main body, and the base end of the brush portion, which has a flocked portion at the tip of the wire, is housed inside the soft member and integrally molded. In this toothbrush for interdental cleaning, when the proximal end of the wire is bent, the bent portion can be supported by the soft member, thereby preventing breakage of the brush portion.

[Problem that the invention attempts to solve]

However, with this toothbrush for interdental cleaning, if the wire of the brush part breaks, it cannot be used again and is uneconomical. In some cases, it is inconvenient that a toothbrush for interdental cleaning must be used for that purpose. For this reason, there has been a strong desire to develop a toothbrush for interdental cleaning that can be used by simply replacing the toothbrush part, which is stable in its fixed state, and whose angle of use can be adjusted for various teeth. .

[Means for solving problems]

In order to achieve the object of the present invention, a brush part is provided with a flocked part at the tip of the wire, a through hole into which the base end of the wire of the brush part can be inserted is provided in the radial direction of the head of the rod, and one hole end is provided with a through hole in the radial direction of the head of the rod. A brush attachment part with a groove for receiving the wire rod from the base end side is provided on the head, and a through groove for attaching a locking member is provided in the rod body with a stopper installed on one side of the middle, and a brush attachment part is provided on the lower end of the rod body. The brush part fixing rod is formed by protruding a core material having a diameter smaller than that of the rod, and the cylinder body has an inner diameter and depth that allows the brush part fixing rod to be fitted loosely therein, and the side wall has an opening for protruding the button. a thin, vertically elongated case that can be installed in the through groove of the fixing rod, and a button that protrudes and retracts into the opening of the case is provided at the lower end of the inverted U-shaped head, facing outward;
A locking member comprising an inverted locking piece provided below, and a locking member that is fitted onto the reduced diameter core material of the brush fixing rod installed inside the case to support the brush fixing rod at an appropriate position in the case. To provide a toothbrush for interdental cleaning comprising a coil spring and a toothbrush for interdental cleaning.

[Effect]

As described above, the toothbrush for interdental cleaning according to the present invention can be used by simply inserting the base end of the brush part into the brush part attachment part of the head part of the fixing rod and pressing the fixing rod into the case. parts can be easily installed. In addition, when you want to replace the brush part, simply press the button on the locking member built into the fixing rod in the direction of the case opening, and the elastic force of the internal coil spring will release the brush part fixing rod. Since the brush part can be made to protrude upward from the case, the brush part can be easily replaced by removing the installed brush part from the brush part fixing rod and inserting and fixing another suitable brush part. It is possible.

〔Example〕

The details of the present invention will be explained based on further illustrated embodiments. FIG. 1 shows an explanatory front view of a state in which the main body of the toothbrush for interdental cleaning according to the present invention is assembled, the brush part is inserted into the brush part fixing rod, and the fixing rod protrudes from the case, and FIG. A cross-sectional explanatory diagram of the state in which the brush part fixing rod is inserted into the case, and the third
The figure is an explanatory diagram showing a side view of the fixing rod in FIG. 2, and the toothbrush for interdental cleaning shown in such a drawing includes a brush part 1, a brush part fixing rod 2, a case 3, and a locking member. 4 and coil spring 5. The brush portion 1 is made of a wire rod 7 having a flocked portion 6 at its tip as shown in the figure, and a stranded wire or other appropriate wire rod may be used. The brush part fixing rod 2 is a member for receiving and fixing the base end side of the brush part 1. In the illustrated example, a through hole 8 into which the base end of the wire rod of the brush part 1 can be inserted is provided in the rod body 9. A groove 10 is provided in the radial direction of the head of the through hole 8 and from one hole end to the base end of the rod 9 to receive the bent portion of the base end of the wire rod 7 so that the through hole 8 and the groove 10 are approximately L-shaped. A through groove 12 for attaching a locking member 4, which will be described later, is provided on the base end side of the rod 9 of the attachment portion 11, that is, at the lower part of the rod 9 shown in the drawings. This through groove 12
is a member that penetrates from one side of the fixed rod 2 to the other side and is provided long in the vertical direction, and in the middle thereof, both side walls with the through groove 12 sandwiched therebetween are constructed near one side of the through groove 12. is provided as a stopper 13, and a core member 14 having a diameter smaller than that of the rod 9 is provided protruding from the lower end of the rod 9. and,
The overall appearance of this brush portion fixing rod 2 is a substantially round rod.

Next, the case 3 for inserting the brush part fixing rod 2 is made of a cylindrical body with an inner diameter and depth that allows the fixing rod 2 to be loosely fitted therein, and an opening 15 for the button to appear and retract is provided in the side wall. ing. That is, in this case 3,
The brush part 1 is attached to the mounting part 11 and a brush part fixing rod 2 is inserted therein, and in order to relate both members, a locking member 4 that allows the fixing rod 2 to move in and out is inserted into the through groove 12. is interpolated into That is, the locking member 4 is connected to the through groove 12 of the fixing rod 2.
It is a thin, vertically elongated device that can be inserted into the head 16.
A button 17 that can be retracted and retracted into the opening 15 of the case 3 is provided at the lower end thereof facing outward, and an inverted locking piece 18 is provided below the button 17. As this locking piece 18, as shown in FIG.
The stopper of the fixing rod 2 is inserted between the inner surface of the case 3 and the vertical rod 19 of the inverted-shaped locking piece 18 when inserted into the through groove 12 of the brush part fixing rod 2 and inserted into the case 3. 13 is moved to form a gap in which interpolation can be performed. For this,
The vertical rod 19 is hung downward from the inner end of the button 17, and the bent piece 20 for locking the stopper 13 is extended from the lower end of the vertical rod 19. It is adopted as.

Next, the coil spring 5 is fitted onto the reduced diameter core material 14 of the brush part fixing rod 2 inserted into the case 3, and is supported at a proper position in the case 3,
It is used as an elastic member for causing the brush portion fixing rod 2 to move in and out of the case 3.

Then, the base end of the wire of the brush part 1 is inserted into the attachment part 11 provided on the head of the brush part fixing rod 2, the brush part 1 is passed through the through hole 8, and the tip is bent downward to form the groove. Interpolate into 10 parts. Next, under this condition, with the locking member 4 inserted into the through groove 12 as shown in FIG.
It is interpolated from the head. After insertion, the coil spring 5 is supported by the case 3, and since the head 16 of the locking member 4 has an inverted U shape, it has elasticity, and its diameter is reduced in the case 3, and the opening 15 part In this case, the button 17 provided on the head 16 protrudes from the opening 15 because the button 17 is projected outward. In this protruding state, the tip of the locking piece 18 comes into contact with the upper edge of the stopper 13 as shown in FIG. 2, and in this case, the coil spring 5 is inserted into the case 3 in a compressed state, Therefore, the brush portion fixing rod 2 is inserted into the case 3 while being urged upward by the coil spring 5.
Next, when the button 17 of the locking member 4 is pressed into the case 3, the contact relationship between the tip of the locking piece 18 and the top surface of the stopper 13 is released, so that the fixing rod 2 is moved by the elastic force of the coil spring 5. , the stopper 13 is located in the gap between the inner surface of the case 3 and the inner surface of the vertical rod 19 of the locking piece 18, and the brush portion fixing rod 2 is in the state of protruding upward from the case 3, that is, the brush portion 1 3, the brush part 1 can be freely removed from the fixing rod 2, and after removal, another appropriate brush part 1 can be easily attached according to the above-mentioned procedure. It can be attached to the section 11.

[Effect of idea]

As described above, the toothbrush for interdental cleaning according to the present invention includes the brush part, the brush part fixing rod,
Since it uses a case, a locking member, and a coil spring, when attaching the brush part to the fixing rod,
Insert the wire of the brush part into the mounting part of the fixed rod tip,
Moreover, simply by pushing the fixing rod into the case, the button of the locking member is locked in the opening of the case, and the tip of the locking piece is locked with the stopper of the fixing rod, so that the brush part can be installed and fixed. It is what it is.
When used as a toothbrush for interdental cleaning in this state, the brush part maintains an angle with respect to the direction in which the brush part fixing rod is attached, making it possible to use it at various angles. positioning becomes easier. Further, since the brush portion can be easily removed by simply pressing a button, the brush portion can be easily attached and replaced.
Furthermore, this interdental cleaning brush can be used to provide a variety of interdental cleaning brushes by simply replacing the brush part.
It is also economical because a new interdental cleaning brush can be provided.

[Brief explanation of drawings]

Fig. 1 is a front view for explaining an embodiment of the interdental cleaning toothbrush according to the present invention, Fig. 2 is a cross-sectional explanatory view thereof,
FIG. 3 is a side view of the brush part fixing rod. 1: Brush part, 2: Fixed rod, 3: Case, 4:
Locking member, 5: Coil spring, 6: Flocked part, 7: Wire rod, 8: Through hole, 9: Rod, 10: Groove, 11: Mounting part, 12: Penetrating groove, 13: Stopper, 14:
Core material, 15: opening, 16: head, 17: button,
18: Locking piece, 19: Vertical rod, 20: Bent piece.

Claims (1)

[Scope of Claim for Utility Model Registration] A brush part having a flocked part at the tip of the wire, and a through hole into which the base end of the wire of the brush part can be inserted in the radial direction of the head of the rod. A brush mounting part with a groove for receiving a wire on the side is provided on the head, and a through groove for mounting a locking member is provided on the rod with a stopper installed on one side of the middle, and the rod is provided with a stopper on the lower end of the rod. The brush part fixing rod has a core material with a diameter reduced in diameter and is made of a cylindrical body having an inner diameter and depth that allows the brush part fixing rod to fit loosely therein, and an opening for protruding the button is provided in the side wall. a case; and a thin, vertically elongated item that can be installed in the through groove of the fixing rod, and a button that retracts into the opening of the case is provided at the lower end of the inverted U-shaped head facing outward;
A locking member comprising an inverted locking piece provided below, and a locking member that is fitted onto the reduced diameter core material of the brush fixing rod installed inside the case to support the brush fixing rod at an appropriate position in the case. A toothbrush for interdental cleaning made of a coil spring and a toothbrush.