JPH0682929U - toothbrush - Google Patents

Abstract

(57) [Abstract] [Purpose] The purpose of the present invention is to make it possible to brush teeth easily and cleanly. Furthermore, it should be possible to brush the teeth without damaging the teeth or gums. [Structure] The toothbrush of the present invention comprises brush cases 1 and 11.
When the brush units 2 and 12 are pressed against the teeth while holding, the brush units 1 and 12 move up and down or swing along the surfaces of the teeth.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a toothbrush, and more particularly to a toothbrush brush head structure.

[0002]

[Prior art]

 What is important for toothbrushes is that they can be brushed easily and quickly and cleanly. As a structure for that purpose, Japanese Patent Laid-Open No. 4-215705 discloses a toothbrush in which a front side polishing portion, a back side polishing portion, and an interlocking surface polishing portion are arranged in a U-shape. Further, JP-A-2-234709 discloses a structure in which a hair holder is rotatably provided.

[0003]

[Problems to be solved by the device]

 As described above, various structures have been proposed as a structure for cleanly brushing teeth, but in all toothbrushes, brush bristles are directly planted at the tip of the brush body. Therefore, in order to make the tips of the brush bristles follow the surface of the tooth with irregularities, it was necessary to finely adjust the angle of the brush body, and it was very difficult to clean every corner of the tooth. .

[0004] Furthermore, it is necessary for the skill based on appropriate instruction to polish the toothbrush cleanly while pressing it against the teeth and gums so as not to damage the teeth and gums.

That is, in the conventional toothbrush, it is very difficult to brush the teeth easily and cleanly without damaging the teeth or gums.

Therefore, an object of the present invention is to make it possible to brush teeth easily and cleanly.

[0007]

A first toothbrush according to the present invention comprises a brush case and a plurality of brush units in which brush bristles are planted, and these brush units are attached to the brush case so as to be vertically movable. It is characterized by being.

A second toothbrush according to the present invention includes a brush case and a brush unit in which brush bristles are divided into a plurality of groups and transplanted, and the brush unit is swingably attached to the brush case. It is characterized by

[0009]

[Action]

 According to the present invention, when the brush unit is pressed against the tooth while holding the brush case, the brush unit moves up and down or swings along the surface of the tooth and comes into close contact with the tooth.

[0010]

【Example】

 FIG. 1 shows an essential part of a first embodiment of the present invention, in which 1 is a brush case, and two circular openings 1a and 1a are provided on the front surface side along the axial direction of the brush case 1. A storage chamber 1b for storing brush units 2 and 2, which will be described later, is provided on the back side thereof. The brush case 1 is a portion that becomes a brush handle main body in a manual toothbrush, and a portion that becomes a brush portion attached to a known electric toothbrush main body in an electric toothbrush. Reference numerals 2 and 2 denote brush units in which brush bristles 3 are planted on the surface. The brush unit 2 has a disk shape slightly smaller than the diameter of the opening 1a, and a collar portion having a diameter slightly larger than the diameter of the opening 1a on the back side. 2a. Reference numeral 4 is a lid that closes the storage chamber 1b, and 5 is a plate-shaped spring, which is fixed to the lid 4 at a substantially central portion thereof and has elastic pieces at both ends.

The brush units 2 and 2 are housed in the housing chamber 1b of the brush case 1 such that the brush hairs 3 and 3 that are respectively planted are projected from the openings 1a and 1a. When the storage chamber 1b is closed by the lid 4, the back surfaces of the brush units 2 and 2 are elastically pressed by the elastic pieces of the plate spring 5. At this time, each of the brush units 2 and 2 does not come off from the openings 1a and 1a by the collar portions 2a and 2a formed on them.

In the above configuration, when the brush units 1 and 2 are pressed against the teeth while holding the brush case 1, the brush units 2 and 2 move downward against the elastic force of the plate spring 5. Or, from the downward moving state, the plate-like spring 5 moves upward by the elastic force. That is, the brush units 2 and 2 move up and down according to the unevenness of the teeth. Therefore, the brush bristles 3 and 3 of each brush unit 2 and 2 adhere | attach firmly along the surface of a tooth.

Further, even if the brush case 1 is strongly pressed against the teeth, the plate-shaped spring 5 acts as a suspension, and the pressing force of the brush units 2 and 2 against the teeth is in an appropriate state, so that the teeth are strongly pressed against the teeth. It will not be done. Therefore, even if the brush case 1 is strongly pressed against the teeth, the teeth can be brushed without damaging the teeth or gums.

FIG. 2 shows an essential part of the second embodiment of the present invention. Reference numeral 11 denotes a brush case, which has an elliptical through hole 11a penetrating from the front surface side to the back surface side at its tip. Further, a shaft hole 11b is provided on the side wall in the longitudinal direction of the through hole 11a. The brush case 11 is a portion that becomes a brush handle main body in a manual toothbrush, and a portion that becomes a brush portion attached to a known electric toothbrush main body in an electric toothbrush. Reference numeral 12 is a brush unit having substantially the same shape as the through-hole 11a and slightly smaller than the through-hole 11a, and on the surface thereof, brush bristles 13 and 13 are divided into two groups and are planted along the longitudinal direction. Further, the brush unit 12 is provided with a pair of support shaft projections 14 at approximately the center of both side surfaces in the longitudinal direction, and these support shaft projections 14 are supported by the support shaft holes 11b. Therefore, the brush unit 12 can swing with respect to the brush case 11.

According to the above structure, when the brush unit 12 is pressed against the teeth while holding the brush case 11, the brush unit 12 oscillates in accordance with the unevenness of the teeth. Therefore, the brush bristles 13 and 13 provided in the brush unit 12 firmly adhere to each other along the tooth surface.

FIG. 3 shows an essential part of a third embodiment of the present invention, which is different in that the swing direction of the brush unit 12 is a direction orthogonal to that of the second embodiment. Since other configurations and effects are the same as those of the second embodiment, the same numbers are given and the description thereof is omitted.

[0017]

[Effect of device]

 According to the present invention, when the brush unit is pressed against the tooth while holding the brush case, the brush unit moves up and down or swings along the tooth surface, and firmly adheres to the tooth surface. And, I can brush my teeth cleanly.

When an elastic spring is provided on the back surface of the brush unit, the brush unit is not strongly pressed against the teeth even if the brush case is strongly pressed against the teeth. Also, the gums are not damaged.

[Brief description of drawings]

FIG. 1 shows a first embodiment of the present invention, (A) is a front view, (B) is a side view, and (C) is a sectional view taken along the line AA of (A).

FIG. 2 shows a second embodiment of the present invention, (A) is a front view, (B) is a side view, (C) is a sectional view taken along line BB of (B), and (D) is ( It is the sectional view on the AA line of A).

FIG. 3 shows a third embodiment of the present invention, (A) is a front view, (B) is a side view, (C) is a sectional view taken along line BB of (B), and (D) is ( It is the sectional view on the AA line of A).

[Explanation of symbols]

 1, 11 Brush case 2, 12 Brush unit 3, 13 Brush bristles

Claims (3)

[Scope of utility model registration request] 1. A toothbrush, comprising a brush case and a plurality of brush units in which brush bristles are planted, and the brush units are attached to the brush case so as to be vertically movable. 2. The toothbrush according to claim 1, wherein an elastic spring is arranged on the back surface of the brush unit. 3. A toothbrush comprising a brush case and a brush unit in which brush bristles are divided into a plurality of groups and transplanted, and the brush unit is swingably attached to the brush case.