JP3011979U - Toothbrush with pressure sensor - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a toothbrush with a pressure sensor that can maintain the pressure for brushing teeth constant. [Structure] When a base end of a rod body provided with a brush portion at its tip is subjected to abrasion pressure on the brush portion, the handle rod is bent so that the rod body is curved from the base end to the back side in proportion to the abrasion pressure. Attached integrally to the tip, when it is bent, the contact provided on the back side of the rod and the contact provided on the handle come into contact with each other, energize the electric circuit arranged on the handle, and emit the photoelectric lamp connected to this. It is provided as follows.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a toothbrush with a pressure sensor that can brush a tooth while maintaining a constant pressure.

[0002]

[Prior art]

 Conventionally, toothbrushes have animal hair, plant fibers, and synthetic resins planted at the tip of the handle rod.

[0003]

[Problems to be solved by the device]

 It is well known that brushing with a toothbrush is essential for keeping teeth long. However, it turned out that rubbing the gums for a long time would hurt the gums in the opposite way.

Regarding the brushing pressure of brushing, there have been various studies and there is data from the viewpoint of dentistry, and it is generally considered appropriate that a toothbrush as a whole has a pressure of 200 to 300 grams. .

In view of this, the present invention generates a signal light when the toothbrush's optimum pressure for the health of the gums is applied to a certain level or more, and notifies the fact that the pressure is strong to adjust the pressure of the toothbrush. It is designed to be able to

[0006]

[Means for Solving the Problems]

 When the base end of the rod with the brush at the tip is subjected to pressure on the brush, the rod is integrated with the handle bar so that the rod bends from the base to the back side in proportion to the pressure. When it is bent, the contacts provided on the back side of the rod come into contact with the contacts provided on the handle lever, energize the electric circuit arranged on the handle rod, and emit the photoelectric lamp connected to it. It is in a toothbrush with a pressure sensor.

A brush-neck in which a synthetic resin wire is planted is exchangeably provided at the tip, and the base end of a rod is inserted into a mounting opening that opens at the tip of the handle, and a mounting hole is formed in the upper half of the handle. The base end of the rod and the mounting hole of the handle are fixed by an adhesive, vibration welding or other fixing means to be attached integrally, and the rear side of the rod is hollow at the attachment port of the handle. When the brush neck is subjected to pressure, the handle is designed to bend from the base end to the back side, and the contact and handle provided on the back side of the rod at the time of bending are The contact provided on the inner wall is contacted to electrically connect the battery and the photoelectric lamp arranged on the handle, the photoelectric lamp is turned on, and the light is emitted from the handle as signal light. It is in a toothbrush with a pressure sensor.

The rod contact on the back of the rod and the handle rod contact of the handle have a support groove formed at the base end of the rod for inserting and supporting a rod contact plate having the rod contact at one end. A support groove for inserting and supporting the handle rod contact plate at one end is formed in the mounting hole in the upper half of the handle rod and the inner wall of the cavity, and the rod contact plate and handle rod contact plate are supported by the respective rod contact plates. Groove and handle rod A structure may be adopted in which the rod body is fitted in the contact plate support groove and the rod body is assembled to the handle rod in this state.

The handle rod is provided from a cylindrical upper half portion and a lower half portion, and in the upper half portion, the rod contact plate and the handle rod contact plate that support the rod, the electrical contact point and the lead wire are supported. Groove and handle rod Insert into the contact plate support groove, project the rear end of the rod contact plate and handle rod contact plate from the lower end of the upper half, and install the optical signal electrical circuit to the battery and photoelectric lamps installed in the lower half. It may be connected and equipped with a sensor electrical circuit.

As for the mounting port of the handle rod, the tip of the rubber sealing tube is fitted to the peripheral surface of the rod body, and the opposite base end is fitted to the annular groove on the outer circumference of the mouth part of the handle rod, The rim and the rim of the base end may be watertight on the inside by tightening pressure or an adhesive.

The brush neck may be such that a connecting hole for communicating a guide groove is formed at the tip of the rod body, and a connecting shaft having a guide pin protruding from the peripheral surface is integrally formed at the base end of the brush neck. is there.

The rod may be formed by molding each of the front and back halves and joining the halves together.

The portion for accommodating the photoelectric lamp may be formed by separately molding a transparent portion and fitting the transparent portion.

[0014]

[Action]

 Since the present invention is configured as described above, when brushing is performed with a handle rod in the same manner as a conventional toothbrush, the handle rod bends from the base end to the back side in proportion to the abrasion pressure. When the polishing pressure reaches the set pressure, the electric circuit is energized and a signal light is generated to notify that the polishing pressure has reached a certain level. Therefore, when the signal light is turned on, the tooth can be brushed with the pressure required by dentistry by loosening the pressure.

[0015]

【Example】

 The toothbrush 1 with a pressure sensor according to the present invention will be explained below with reference to the drawings showing an embodiment. As shown in FIGS. 1 to 3 showing the first embodiment, a tip of a brush neck 2 on which a synthetic resin wire is planted. The base end 3a of the rod 3 which is exchangeably mounted on the handle rod 4 is inserted into a mounting opening 5 opened at the tip of the handle rod 4 and fitted into a mounting hole 5a formed in the upper half portion 4a of the handle rod 4, The base end 3a of the rod 3 is fixed to the mounting hole 5a of the handle 4 by an adhesive, vibration welding or other fixing means, and is integrally attached. Is formed on the back side of the rod 3 when the brush neck 2 is subjected to pressure, and the handle 3 is provided so as to bend from the base end to the back side, and is provided on the back side of the rod 3 at the time of bending. The rod contact 6 comes into contact with the handle rod contact portion 7 provided on the inner wall of the hollow portion 5b of the handle rod 4, and the handle rod 6 Electrically connecting the battery 8 and the light lamp 9 is arranged, the light lamp 9 illuminates a shall such provided as to notify the signal light lighting beam from E杆 4.

As shown in FIGS. 2 and 3, the rod contact 6 on the rear surface of the rod and the handle rod contact 7 of the handle have a rod contact plate 6a having a rod contact 6 at one end at the base end 3a of the rod 3. A support groove 7b is formed in the upper half portion 4a of the handle rod 4 and a cavity for forming a support groove 3b for inserting and supporting the handle rod contact plate 7a having a handle rod contact 7 at one end. It is formed on the inner wall of the portion 5b, and the rod contact plate 6a and the handle rod contact plate 7a are fitted into the respective support grooves 3b and the supporting grooves 7b, and the rod 3 is assembled to the handle rod 4 in this state.

In the first embodiment shown in FIGS. 1 to 3, the handle rod 4 is provided with a cylindrical upper half portion 4a and a lower half portion 4b, and the rod 3 and the electrical contacts are provided in the upper half portion 4a. The lead wire and the rod contact plate 6a are provided so that they can be equipped by simply fitting the rod contact plate 6a into the rod support groove 3b and the handle rod contact plate 7a into the handle rod support groove 7b. The optical signal electric circuit 10 can be connected to the battery 8 and the photoelectric lamp 9 provided in the lower half 4b by projecting the rear ends of the rod contact plate 6a and the handle rod contact plate 7a from the lower end of the upper half 4a. It is provided in. The photoelectric lamp 9 includes all light emitting devices such as light bulbs and LEDs.

The attachment port 5 of the handle 4 has the tip of the rubber sealing tube 11 fitted on the peripheral surface of the rod 3, and the opposite base end of which is fitted in the annular groove 4c on the outer periphery of the mouth of the handle 4. The front end edge 11a and the base end edge 11b are fitted in a watertight manner by the tightening pressure of the member itself or an adhesive.

The brush neck 2 may be provided integrally with the rod body 3, but in the drawings, an example in which the brush neck 2 is exchangeable is shown, and a connection hole 13 for communicating the guide groove 12 is formed at the tip of the rod body 3. At the base end of the brush neck 2, a connecting shaft 15 having a guide pin 14 protruding from the peripheral surface is integrally formed. Therefore, the brush surface 16 is always connected to the rod 3 in one direction with respect to the rod 3.

In the first embodiment, the handle rod 4 is divided into the upper half portion 4a and the lower half portion 4b. However, as shown in FIGS. 7 and 8, the handle rod 4 has a front side portion 4d and a rear side portion 4e. It is also possible to mold the halves one by one and then join them together to form the abdomen.

A transparent portion 17 is separately molded in a portion for accommodating the photoelectric lamp 9, and the transparent portion 17 is fitted thereto. At this time, the transparent portion 17 may of course be integrally molded by two-step molding.

[0022]

[Effect of device]

 Since the present invention is as described above, the brushing force can be maintained constant by relying on the signal light, and the tooth brushing can be performed with the ideal brushing pressure required by dentistry from children to adults. Can be done.

The pressure sensor of the present invention has a simple structure because the electric circuit is closed by bending the base end of the rod provided with the brush portion at the tip with respect to the handle rod. -It is robust, low-cost, and has the effect of accurately detecting and notifying abrasion pressure.

[Brief description of drawings]

1 is a front view of the present invention toothbrush with a pressure sensor.

FIG. 2 is a partially cutaway vertical side view showing an embodiment of a brush neck connection structure of a toothbrush with a pressure sensor and an electrical contact structure of a pressure sensor.

FIG. 3 is a vertical sectional front view showing an embodiment of the electric contact structure of the abrasion pressure sensor inside the handle rod.

FIG. 4 is a rear view showing an embodiment of the rod.

FIG. 5 is a front view showing an embodiment of a single brush neck which is also replaceable at the tip of the rod.

FIG. 6 is a side view of the brush neck alone.

FIG. 7 is an inner view showing a second molding example of the handle rod.

FIG. 8 is a vertical sectional view showing the assembly structure of the same.

FIG. 9 is a side view showing an optical signal electric circuit of a battery and a photoelectric lamp, which are also provided in the rod contact plate, the handle rod contact plate, and the lower half of the handle rod.

[Explanation of symbols]

 1 Toothbrush with a pressure sensor 2 Brush neck 3 Rod 3a Base end 3b Rod contact plate support groove 4 Handle rod 4a Upper half 4b Lower half 4c Annular groove 5 Mounting port 5a Mounting hole 5b Cavity 6 Rod contact 6a Rod Plate 7 Handle rod contact 7a Handle rod contact plate 7b Handle rod contact plate support groove 8 Battery 9 Photoelectric lamp 10 Optical signal electric circuit 11 Rubber sealing tube 11a Tip edge 11b Base edge 12 Guide groove 13 Connection hole 14 Guide pin 15 Connection shaft 16 Brush surface 17 Transparent part

Claims (8)

[Scope of utility model registration request] 1. A handle so that when the base end of a rod provided with a brush portion at the tip is subjected to pressure on the brush portion, the rod is curved as required from the base end to the back side in proportion to the abrasion pressure. A photoelectric lamp that is attached integrally to the rod, and when it is bent, the rod contacts provided on the back side of the rod come into contact with the handle contacts provided on the handle, and the electric circuit placed on the handle is energized and connected to it. A toothbrush with a pressure sensor that is provided to emit light. 2. A device formed in the upper half of the handle rod by inserting the base end of a rod, which is provided with a brush neck having synthetic resin wire rods erected at its tip, to be exchangeable, into a mounting opening opened at the tip of the handle rod. The base end of the rod and the mounting hole of the handle are fixed by an adhesive, vibration welding or other fixing means to be attached integrally, and the rear side of the rod is attached at the attaching port of the handle. Is formed in the hollow part, and when the brush neck is subjected to pressure, the handle is provided so as to bend from the base end to the back side, and at the time of bending, the rod contact point provided on the back side of the rod and the cavity of the handle By contacting the handle contact provided on the inner wall of the part, electrically connecting the battery arranged on the handle to the photoelectric lamp, lighting the photoelectric lamp, and notifying this lighting light as a signal light from the handle. A toothbrush with a pressure sensor that is installed like this. 3. The rod contact on the back of the rod and the handle rod contact of the handle have a support groove at the base end of the rod for receiving and supporting a rod contact plate having the rod contact at one end, and the handle contact. A support groove for inserting and supporting the handle rod contact plate at one end is formed in the mounting hole of the upper half of the handle rod and the inner wall of the cavity, and the rod contact plate and handle rod contact plate are inserted into the respective support grooves, The toothbrush with a pressure sensor according to claim 1 or 2, wherein the rod body is assembled to the handle rod in this state. 4. A handle rod is provided from a cylindrical upper half portion and a lower half portion, and in the upper half portion, the rod contact plate and the handle rod contact plate, in which the rod body, the electric contact and the lead wire are integrated, are provided in the support groove. Insert it, project the rear end of the rod contact plate and the handle rod contact plate from the lower end of the upper half, connect the optical signal electric circuit to the battery and photoelectric lamp installed in the lower half, and equip it with the sensor electric circuit. Claim 1, claim 2 or claim 3 characterized in that
Toothbrush with the described pressure sensor. 5. The mounting opening of the handle rod is such that the tip of a rubber sealing tube is fitted on the peripheral surface of the rod body, and the opposite base end is fitted on an annular groove on the outer circumference of the mouth portion of the handle rod. 5. The front edge and the base edge are watertightly provided on the inner side by tightening pressure or an adhesive agent.
Toothbrush with the described pressure sensor. 6. The brush neck has a connection hole for communicating a guide groove formed at the tip of the rod body, and a connection shaft having a guide pin projecting from the peripheral surface formed integrally with the base end of the brush neck. The toothbrush with a pressure sensor according to claim 1, claim 2, claim 3, claim 4, or claim 5 characterized. 7. The rod is formed by molding each of the front and rear halves and joining the halves together so as to form an abdomen. The toothbrush with a pressure sensor according to claim 4, claim 5, or claim 6. 8. A portion for accommodating a photoelectric lamp is formed by separately molding a transparent portion and fitting the transparent portion therein. The toothbrush with a pressure sensor according to claim 5, claim 6 or claim 7.