JP2560964Y2 - Bath massager - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bath massager used while immersed in a bathtub.

[0002]

2. Description of the Related Art A basic form of a massager according to the present invention is known from a portable massager disclosed in Japanese Utility Model Publication No. 61-15878. Although this cannot be used for bathing, it accommodates a motor and a reduction gear mechanism in a case, and turns a pair of left and right massage balls provided on the outer surface of the case. The reduction gear mechanism includes a worm shaft fixed to an output shaft of a motor, and a pair of left and right worm gears meshing with the worm shaft. A massage ball is attached to a support shaft of each worm gear via an inclined turning shaft.

A massager immersed in a bathtub and used in a stationary state is known from Japanese Utility Model Publication No. 3-183. This arranges a motor and a reduction mechanism above the bathtub, transmits its power to the bevel gearbox immersed in the bathtub through the vertical axis, and tilts the massage unit to the final shaft that projects sideways from the bevel gearbox. It is the one that was attached. In this massager, only the bevel gear box and the massage unit are immersed in bath water, and the case accommodating the motor and the speed reduction mechanism is always outside the bathtub.

[0004]

In the latter conventional apparatus, the whole massage device is fixed in a bathtub and used. Therefore, it is necessary for the user to put his / her body in accordance with the position of the massage unit, which is inconvenient and inconvenient to use by hand. There is also a disadvantage that the space occupied by the massager is large and it interferes with bathing.

[0005] If the former conventional device, which is premised on hand-held use, is changed to a bath type, the above-mentioned problems in use can be eliminated. However, when using a massager equipped with a pair of massage balls outside the case for bathing, it is necessary to perform waterproofing on the assumption that the whole is immersed in bath water, especially massage balls exposed outside the case. A problem is the waterproof structure between the case and the case. For example, as in the case of a hand-held cleaning brush and massage device disclosed in Japanese Utility Model Publication No. 1-4349, it is sufficient that the inside of the case can be sealed simply by disposing a waterproof packing between the joint surfaces of the two cases. In addition, it is necessary to seal any one of the massage ball, the tilt turning shaft, and the support shaft of the worm gear. Moreover, the reliability of the waterproof structure must be high because a commercial power supply is used as a power supply. Conventionally, it is simple to seal a support shaft that does not perform a turning operation with an oil seal or packing as a waterproof structure. However, when the support shaft is sealed, the turning shaft and the massage ball necessarily inevitably protrude outside the case, and the disadvantage of increasing the front-rear dimension of the massager is inevitable.

[0006] In ordinary portable massagers not for bathing, the outer surface of the massage ball is covered with a protective cover made of cloth in order to prevent clothes and the like from getting caught. When the former conventional device is used for bathing, it is impossible to use a protective cover made of cloth. This is because the protective cover is always immersed and thus easily deteriorates at an early stage, and there is a problem in hygiene such as propagation of various germs and accumulation of hot water inside the cover. For these reasons, it may be advisable to use a rubber protective cover instead of fabric in a bath massager.

An object of the present invention is to obtain a compact massager having small front and rear dimensions and suitable for bathing by collectively waterproofing a plurality of massage balls using a rubber protective cover. Another object of the present invention is to provide a waterproof seal provided around the periphery of the front and rear cases, as well as a waterproof seal surrounding the motor and the speed reduction mechanism using the cover, thereby achieving a high degree of reliability regarding the waterproof function. To get.

[0008]

In the massage device of the present invention, a motor 2 and a speed reduction mechanism 3 are accommodated in an outer case 1 composed of a front case 1a and a rear case 1b which are divided into front and rear parts. A plurality of output shafts 4 provided in the reduction mechanism 3
In addition, a massage ball 6 protruding outward from the front case 1a is mounted via an inclined turning shaft 5, and a ball window 14 is opened in the face wall of the front case 1a. Rubber waterproof cover 16 also serves as
Is attached from the inner surface side of the case, circumscribes the plurality of massage balls 6 in an elastically deformed state, and the waterproof packing 15 is sandwiched and fixed along the joint between the peripheral walls of the front case 1a and the rear case 1b. That the waterproof cover 1
It is required that the seal portion 23 provided on the peripheral edge of No. 6 be sandwiched and fixed between a pair of seal holding walls 24 and 25 provided on the inner surface walls of the front case 1a and the rear case 1b.

[0009]

When the plurality of massage balls 6 are collectively covered by the waterproof cover 16 which also serves as a protective cover, the arrangement of the output shaft 4 located inside the case from the front wall of the outer case 1 can be performed. On the other hand, when the output shaft is sealed with a seal member, the output shaft must be protruded from the outer case. The front-rear dimension of the massager can be reduced by the difference between the inner and outer positions of the output shaft 4. Seal part 2 provided on waterproof cover 16
3 and the waterproof packing 15 provided along the peripheral walls of the front and rear cases 1a and 1b, when the inside of the case is double-sealed, even if the waterproof packing 15 has a poor seal, the motor 2 and the speed reduction mechanism 3 can be prevented from being flooded.

[0010]

According to the present invention, a plurality of massage balls 6 are collectively covered with a waterproof cover 16 also serving as a protective cover, and a mechanism subsequent to the reduction mechanism 3 between the waterproof cover 16 and the outer case 1 is provided. Made waterproof seal. Therefore, according to the massager of the present invention, it is possible to prevent the massage ball 6 and the inclined turning shaft 5 from protruding largely on the outer surface of the outer case 1 and to arrange a device in which at least a part thereof is accommodated in the space inside the case. Since the massager can be made compact by reducing the front and rear dimensions of the massager as a whole, it can be prevented that the space occupied by the massager obstructs bathing. Waterproof cover 1
6, the seal case 23 is integrally provided on the periphery thereof, and the seal case 23 and the waterproof packing 15 along the periphery of the outer case 1 are used to seal the outer case 1 inside and outside. Even if the container is accidentally dropped and the impact causes a poor seal in the waterproof packing 15, the waterproofing can be reliably performed by the inner seal portion 23, and a high degree of reliability regarding the waterproof function can be obtained. In particular, even when the motor 2 is driven by a commercial power supply,
The safety of the massager immersed in bath water can be improved.

[0011]

1 to 6 show an embodiment of a massager according to the present invention. 2 and 3, the massage device accommodates a motor 2 and a speed reduction mechanism 3 inside a ginkgo-shaped outer case 1 and a pair of left and right output shafts 4.
4, massage balls 6.6 are attached via inclined rotation shafts 5, 5, respectively. A pair of handles 7.7 are provided on the left and right sides of the outer peripheral surface of the outer case 1 in preparation for hand-held use. The massage ball 6 is a hard plastic molded product formed in a hanging bell shape.

The reduction mechanism 3 includes a sealed gear box 9
A worm shaft 10 directly connected to the output shaft of the motor 2 is disposed at the center of the inside of the motor, and a pair of worm gears 11 that mesh with the worm shaft 10 are disposed on the left and right sides of the worm shaft. And rotatably supported by the gear box 9. As shown in FIG. 3, the inclined turning shaft 5 is mounted obliquely with respect to the output shaft 4, and supports the massage ball 6 via a ball joint 12 at the tip thereof so as to be relatively rotatable. The left and right output shafts 4 are rotationally driven in opposite directions. When the output shaft 4 rotates, the center of the ball joint 12 makes a circular motion around the output shaft 4, and the massage ball 6 moves along with the circular motion, so that a massage operation is obtained.

The outer case 1 is formed by joining a shell-shaped front case 1a and a rear case 1b, which are divided into front and rear portions, in a lid-to-cover shape. A ball window 1 for exposing the massage ball 6 to the outside of the case is provided on the front wall of the front case 1a.
4 are long and open to the left and right in an oval shape (see FIG. 4). In order to prevent bath water from entering the case, a waterproof packing 15 is sandwiched and fixed along the joint of the peripheral walls of the front and rear cases 1a and 1b, and the massage ball 6 is fixed by a waterproof cover 16 also serving as a protective cover. Is covered from the outer surface to seal the ball window 14.

FIG. 5 shows the details of the sealing structure using the waterproof packing 15. The waterproof packing 15 is formed as a molded packing made of rubber, and includes the front and rear cases 1a and 1b.
Is fastened with screws 17 along the periphery of the case,
It is sandwiched and fixed between the opposing seal walls 19 and 20. Micro ribs 21 are provided on both seal walls 19 and 20 so as to protrude alternately to increase the clamping surface pressure. As shown in FIG. 2, the handle 7 is sandwiched and fixed between the front and rear cases 1 a and 1 b. The micro ribs 21 are also provided on the divided surface walls of the handle 7 that are continuous with the seal walls 19 and 20.

The waterproof cover 16 is a rubber molded product made of silicone rubber. The waterproof cover 16 is formed as a whole in the form of a juvenile mushroom that is slightly smaller than the outer line of the outer case 1, and bulges outward from the ball window 14 toward the upper portion thereof. A main cover portion 22 is provided, and a seal portion 23 is provided along a peripheral edge. The waterproof cover 16 is attached to the front case 1a from the inside of the case, and circumscribes the main cover portion 22 in a state where the main cover portion 22 is elastically deformed to the massage ball 6, as shown in FIG. As shown in FIG. 1, the seal portion 23 is formed by integrally forming a groove portion 23a having a U-shaped cross section and a bead portion 23b at the outer edge of the groove.
a is a seal holding wall 24 provided on the front and rear cases 1a and 1b.
At 25, it is clamped back and forth. The seal holding wall 24 on the front case 1a side is formed as a U-shaped groove, and the seal holding wall 25 on the rear case 1b side is formed as a protruding wall that fits into the seal holding wall 24 via the groove 23a. ing. As shown in FIG. 3, both seal holding walls 24 and 25
Is provided so as to surround the outer surfaces of the motor 3 and the speed reduction mechanism 3 endlessly. Separately from the above sealing portion 23, the ball window 1
A hook portion 26 is provided along the peripheral surface of the lower half portion 4 and is engaged with a hook rib 27 provided on the inner surface of the opening of the ball window 14 (see FIG. 1). This is to prevent the lower half peripheral edge of the main cover 22 from moving when the massage ball 6 operates. The waterproof cover 16 also helps soften the touch,
There is no need to separately cover the outer surface of the massage ball 6 with rubber or the like.

The massage device is installed in the bathtub T via a mounting frame 29 having a ladder structure shown in FIG. This mounting frame 29
A plurality of horizontal rails 31 are fixed between a pair of side frames 30, and suction cups 32.
32. A hook 33 is provided on the rear surface of the outer case 1. By hooking the hook 33 on an arbitrary cross bar 31, a part or the whole of the massage device is immersed in bath water to be used in place. it can. Although not shown, the massager is connected to a control box installed outside the bathroom via a power cord.

Another Embodiment In the above embodiment, two massage balls 6 are provided, but two or more massage balls 6 may be provided. The seal holding walls 24 and 25 are provided with seal walls 19.2 around the periphery of the case.
Similarly to the case 0, it can be provided on the division surface of the front and rear cases 1a and 1b. The structure of the speed reduction mechanism 3 may employ a mechanism other than the embodiment.

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view of a massager.

FIG. 2 is an internal front view of the massage device.

FIG. 3 is a sectional view taken along line AA in FIG. 2;

FIG. 4 is an external perspective view of the massage device.

FIG. 5 is a sectional view taken along line BB in FIG. 2;

FIG. 6 is a sectional view showing a use state of the massage device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outer case 1a Front case 1b Rear case 2 Motor 3 Reduction mechanism 4 Output shaft 5 Inclined turning shaft 6 Massage ball 14 Ball window 15 Waterproof packing 16 Waterproof cover 23 Seal part 24/25 Seal holding wall

 ──────────────────────────────────────────────────続 き Continued from the front page (56) References JP-A-3-63 (JP, A) JP-A 4-67435 (JP, U) JP-A 63-154030 (JP, U) JP-A 62- 200325 (JP, U) Jiko 61-15878 (JP, Y2) Jiko 64-4349 (JP, Y2)

Claims (1)

(57) [Scope of request for utility model registration] 1. A motor 2 and a speed reduction mechanism 3 are accommodated in an outer case 1 composed of a front case 1a and a rear case 1b divided into front and rear parts, and a plurality of output shafts provided in the speed reduction mechanism 3. 4 is a bath massager in which a massage ball 6 protruding outward from the front case 1a is attached via an inclined turning shaft 5, and a ball window 14 is opened in the face wall of the front case 1a. A rubber waterproof cover 16 also serving as a protective cover is attached to the ball window 14 from the inner side of the case, and circumscribes the plurality of massage balls 6 in an elastically deformed state, and is formed on the peripheral wall of the front case 1a and the rear case 1b. A waterproof packing 15 is sandwiched and fixed along the joint, and a seal 23 provided on the peripheral edge of the waterproof cover 16 is formed by a pair of seals provided on the inner wall of the front case 1a and the rear case 1b. Bath massager fixed between the holding walls 24 and 25.