JPH0622337Y2 - Vibration and soundproof structure of oral hygiene equipment - Google Patents

Description

[Detailed Description of the Invention] Industrial field of use [1] The present invention is directed to the nozzle by directing the nozzle into the oral cavity and then operating the switch to energize the liquid stored in the tank with a pump to eject the liquid from the nozzle. It can be applied to an oral hygiene device that is used for cleaning and gives a refreshing feeling to the oral cavity. Specifically, it relates to its vibration and soundproof structure.

2. Description of the Related Art Conventionally, as shown in FIG. 11, for example, an oral hygiene device is provided with a tank 2 on a device body 1 and a handle 4 is connected to the device body 1 via a tube 3 to connect the handle 4 to the handle 4. The nozzle 5 was detachably attached.
Then, after removing the cap 6 by holding the handle 4, the nozzle 5 is directed into the oral cavity, the hand switch 7 is operated to operate the device body 1, and the liquid stored in the tank 2 is provided in the device body 1. It is energized by the pump 8 and jetted from the nozzle 5 through the tube 3. Then, the sprayed liquid was used to wash the inside of the mouth and give a refreshing feeling to the inside of the mouth.

By the way, although not shown in FIG. 11, a motor 9 for operating the pump 8 is supported by a bracket b via a vibration damping member a such as rubber as shown in FIG. Then, the vibration of the motor 9 is prevented from being transmitted to the bracket b to prevent the generation of vibration and noise.

However, in order to completely prevent the generation of vibration and noise, not only the motor, but also the gears, cranks, pumps, and other components that make up the drive are all anti-vibration members. Therefore, there is a problem that the structure becomes complicated, the number of parts is increased, the assembly is troublesome, the cost becomes high, and the miniaturization becomes difficult.

Therefore, an object of the present invention is to eliminate such a conventional problem in a vibration-proof / sound-proof structure of an oral hygiene device, and to enable miniaturization without increasing cost.

Therefore, in the vibration-proof / sound-proof structure according to the present invention, the motor 20 is driven to operate the pump 25 to suck the liquid from the tank 34, for example, as shown in the following illustrated embodiments. In a portable oral hygiene device that sprays from a nozzle 37 and cleans the inside of the oral cavity with the sprayed liquid, a drive unit such as the motor 20 and the pump 25 is housed in a unit case 28 to form an elongated drive unit 15. It is characterized in that the drive unit 15 is formed and is fixed in the cylindrical main body case 10 via the vibration-proof members 50 and 52 at both ends.

The vibrations generated by the motor 20 and the pump 25 are absorbed by the vibration isolating members 50 and 52 and are not transmitted to the main body case 10.

Embodiments Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an oral hygiene apparatus which is an embodiment of the present invention. Reference numeral 10 in the figure denotes a cylindrical main body case that can be held by one hand, and is configured by attaching an upper cap 12 and a lower cap 13 to the upper and lower sides of a cylindrical case portion 11, respectively. A unit housing 14 is provided on one side of the cylindrical case 11 to the lower cap 13, and a slender drive unit 15 is detachably housed therein. On the other hand, the other side is provided with a battery storage portion 16 in which two batteries 17, 17 are detachably stored.

As shown in FIG. 2, the drive unit 15 mounts the motor 20 on the plate-shaped substrate 19. Then, the crank gear 22 is meshed with the motor gear 21 of the motor 20, and the crank gear 22 is rotatably supported by the fixed shaft 23 standing on the substrate 19. An end of a crank 24 is rotatably attached to the crank gear 22 so as to be rotatable. The piston 26 of the pump 25 is attached to the other end of the crank 24. The pump 25 is mounted on the substrate 19. And the substrate 19
A semi-cylindrical cap 27 is covered on the above, and a drive unit such as the motor 20, the crank gear 22, and the pump 25 described above is housed in a unit case 28 including the substrate 19 and the cap 27. On the outside of the unit case 28,
Connected to the motor 20, a positive terminal plate 29 and a negative terminal plate (not shown) are provided. Then, two switch springs 30 and 31 are extended in parallel from the positive terminal plate 29.
That is, as shown in FIG. 3, the lower portion is positioned and separated by the H-shaped projection 27a of the cap 27, and the switch spring 30.
Extend 31 upwards. Then, the switch springs 30 and 31 are inserted into the central hole 32a so that the cap 2
The holder 32 is mounted on the holder 7, and the upper portions of both switch springs 30 and 31 are positioned and separated by the H-shaped column 32b of the holder 32. A ring-shaped rubber vibration isolator 50 is fitted to the holder 32 on the outer peripheral step portion 32c. And
It is constructed as shown in FIG. 4 and FIG. Then,
The lower cap 13 is removed, and the drive unit 15 is inserted into the unit housing portion 14 of the cylindrical case portion 11 from below to be detachable. Then, as shown in FIG. 1, the anti-vibration member 50 is pressed against the frame 51 in the main body case 10 to be positioned, and then the lower cap 13 is put on. Then, sandwich another vibration isolating member 52 and press it with the lower cap 13,
Extend the switch springs 30 and 31 upward, and pump 25
The drive unit 15 is surely fixed in the main body case 10 in a state in which is arranged below.

On the other hand, for the battery 17, the battery lid 33 of the lower cap 13 shown in FIG. 1 is removed, and the battery 17 is inserted into the battery housing portion 16 of the cylindrical case portion 11 from below. Then, the two are arranged in parallel with the drive unit 15 and accommodated in series in the main body case 10. Then, the positive side of the battery 17 is connected to the tip 29a of the positive terminal plate 29 shown in FIG. 6, the negative side is connected to the negative terminal plate (not shown), and the motor 20 of the drive unit 15 is electrically connected.

By the way, as can be seen from FIG. 1, a tank chamber 34 is formed in the main body case 10 from the upper portion to the space between the drive unit 15 and the storage portion of the battery 17. That is, in the upper cap 12, the upper portion of the cylindrical case portion 11, and the sixth
As shown in the figure, a tank chamber 34 is provided in the gap between the unit housing portion 14 and the battery housing portion 16. Then, the tank chamber 34 is connected to the suction side 25a of the pump 25 as shown in FIGS. 7 and 8.

Now, in such an oral hygiene apparatus, as shown in FIG. 1, a concave portion is provided in an upper portion of the main body case 10, that is, a top portion of the upper cap 12, and the nozzle mounting opening 12a is formed therein. The nozzle mounting port 12a is provided with a liquid supply hole 12b communicating with the tank chamber 34, and a fitting portion 12c having an O-ring 36 is provided. The base 37 is attached to the fitting portion 12c.
a is fitted and the nozzle 37 is detachably attached to the nozzle attachment port 12a. Then, the base portion 37a and the fitting portion 1
O-ring 36 prevents liquid leakage between 2c. Fitting part 12
One end of the connecting tube 38 is connected to c. The other end of the connecting tube 38 passes through the inside of the tank chamber 34, extends downward as shown in FIG. 9, and is connected to the discharge side 25b of the pump 25 as shown in FIG.

As shown in FIG. 1, the switch 40 is attached to the upper part of the cylindrical case 11. The switch 40 has its tip facing the tip of one of the switch springs 30, and
The head portion 40a is urged outward at 1 to project the head portion 40a to the outside. When the switch 40 is pushed against the return spring 41, the two switch springs 30 and 31 are brought into contact with each other to drive the motor 20.

Now, when using this oral hygiene apparatus, a liquid such as water or a chemical solution (for example, an oral cleaning solution or a liquid obtained by diluting it) is poured from the nozzle mounting opening 12a of the upper cap 12, and the tank chamber 34 is passed through the liquid supply hole 12b. Put it in. Then, after the tank chamber 34 is filled with the liquid, the fitting portion 1
The base portion 37a is fitted to 2c, and the nozzle 37 is closed with the nozzle 37. Then, holding the main body case 10 and bending forward, the nozzle 37 is directed to the inside of the mouth, and the switch 4
Press 0. As a result, the motor 20 is driven, the motor gear 21 is rotated and the crank gear 22 is rotated, and the crank 2
The piston 26 is reciprocated via 4 to resist the biasing spring 43 in the suction stroke (see FIGS. 1 and 8).
And the liquid is drawn from the inside of the tank chamber 34. On the contrary, in the discharge stroke, the check valve 44 is closed and the drawn-in liquid is sent upward through the connecting tube 38 and the nozzle 37
To spray into the oral cavity. Then, the sprayed liquid cleans the inside of the mouth and gives a refreshing feeling to the inside of the mouth.

Therefore, according to the present invention, since the entire drive unit is unitized and the drive unit is fixed in the main body case through the vibration isolator, it is not necessary to individually provide the vibration isolator. It is possible to reduce the number of parts, reduce costs, and prevent vibration and noise without increasing the size. Since the drive unit is unitized, it can be handled easily and the assemblability can be improved.

[Brief description of drawings]

1 to 10 show an oral hygiene apparatus according to an embodiment of the present invention. FIG. 1 is an overall longitudinal sectional view of the same, and FIG. 2 is an internal configuration diagram of a drive unit used in the apparatus. Three
FIG. 4 is a partially exploded perspective view of the drive unit, FIG. 4 is an assembled perspective view thereof, FIG. 5 is a longitudinal sectional view thereof, and FIG. 6 is A- of FIG.
Fig. 7 is a cross sectional view taken along line A, Fig. 7 is a cross sectional view taken along line BB, and Fig. 8 is a cross sectional view showing a suction side portion of the pump.
The drawing is a cross-sectional view showing the discharge side portion, and FIG. 10 is a partially enlarged view thereof. FIG. 11 is a schematic configuration diagram of a conventional oral hygiene device, and FIG. 12 is a motor support structure diagram thereof. 10 ... Main body case, 15 ... Drive unit, 20 ...
Motor, 25 ... Pump, 34 ... Tank, 37 ... Nozzle, 50/52 ... Anti-vibration member.

Claims (1)

[Scope of utility model registration request] 1. A portable oral hygiene apparatus for driving a motor to operate a pump, sucking a liquid from a tank, jetting the liquid from a nozzle, and cleaning the inside of the oral cavity with the jet liquid. A drive unit such as a pump is housed in a unit case to form an elongated drive unit, and the drive unit is fixed in a cylindrical main body case via vibration-proof members at both ends to prevent oral hygiene equipment. Vibration and soundproof structure.