JPH10328261A - Device for supporting vibrating body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent deterioration by enabling horizontal and vertical vibrations to be absorbed mainly by a rubber body and a coil spring, respectively, providing the rubber body with a sufficient vertical stroke at its thin-walled part so that it does not hinder movement of the coil spring, and allowing the rubber body, even if deflected downward via the thin-walled part, to be restored by the coil spring. SOLUTION: In a device wherein a vibrating body 7 is supported on a mounting plate via an elastic body 35, the elastic body 35 comprises a bottomed, cylindrical rubber body 36 on the ceiling part 38 of which the part 33 to be supported of the vibrating body 7 is mounted and a coil spring 37 interposed between the mounting plate and the upper part of the rubber body 36 inside the rubber body 36. A column 43 is passed through the axis of the rubber body and has the mounting plate secured to its lower end. The middle part of the cylindrical rubber body 36 along its vertical direction is made into a thin-walled part 40, and the rubber body 36 is made greater in diameter at its part below the thin-walled part than at its part above the thin-walled part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for supporting a vibrating body for giving a vibration for massaging a human body, for example.

[0002]

2. Description of the Related Art Conventionally, a vibrating body for giving a vibration for massaging a human body, for example, is mounted on a mounting plate via an elastic body. This elastic body may be a cylindrical elastic rubber or a coil spring. In general, elastic rubber is easy to absorb vibration in the horizontal direction, but is hard to absorb vibration in the vertical direction. In order to be able to sufficiently absorb vibrations in the vertical direction, the elastic rubber may be made thinner. However, if the elastic rubber is made thinner, there is a problem that when a large load is applied to the upper and lower parts, the elastic rubber becomes stiff and hard to restore. .

[0003] On the other hand, the coil spring has a problem that it can easily absorb vibration in the vertical direction, but hardly absorb vibration in the horizontal direction.

[0004] Even when a large weight is applied from above the vibrating body as in a massage machine, it is desirable that the vibration be well absorbed in both the vertical and horizontal directions so that the vibration is not easily transmitted to the body of the massage machine. It is.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vibrating body support device capable of absorbing vibrations in both the vertical and horizontal directions.

[0006]

According to the present invention, a vibrating body is supported on an attachment plate via an elastic body. The elastic body has a supported portion of the vibrating body mounted on a ceiling thereof. It is composed of a bottom cylindrical rubber body, and a coil spring interposed between the mounting plate and the upper portion of the rubber body inside the rubber body. It is provided with a column to be fixed, and furthermore, a middle part in the vertical direction of the bottomed cylindrical rubber body is made a thin part.

With this configuration, the horizontal vibration is mainly absorbed by the bottomed cylindrical rubber body, and the vertical vibration is mainly absorbed by the coil spring. Is formed, the rubber body has a sufficient stroke also in the vertical direction, and does not hinder the movement of the coil spring. Also, even if a large weight is applied from above and the rubber body goes downward through the thin portion, it is restored by the coil spring.

In the present invention, it is preferable that the diameter of the rubber body below the thin portion is larger than that above the thin portion. With such a configuration, the rubber body can be stably mounted on the mounting plate, and the displacement of the thin portion due to the vibration in the vertical direction can be made regular, and damage to the rubber body can be prevented.

Further, according to the present invention, the upper portion of the coil spring is fitted to the inner surface of a small diameter portion above the thin portion of the rubber body, and the lower portion of the coil spring is fitted to the outer surface of a cylindrical seat formed on a mounting plate. It is preferable to fit. With this configuration, the coil spring can be installed stably.

[0010] In the present invention, it is preferable that the insertion surface of the support post on the ceiling portion of the rubber body is thin. With this configuration, it is possible to improve the vibration absorbing force of the rubber body against horizontal vibration.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the drawings, as an embodiment, in which the present invention is applied to a vibration type supporting device for a chair type massage machine. FIG. 1 is a side view of a chair-type massage machine, which includes a backrest portion 1, a seat portion 2, a footrest 3 continuous with the seat portion, and armrest portions provided on the right and left sides of the seat portion 2 and the backrest portion 1. The chair body is composed of the frame member 4 and a frame mechanism supporting these members. The angle of the backrest 1 can be adjusted with respect to the seat 2 by a reclining mechanism (not shown). The footrest 3 is the seat 2
, And can be pivoted to a position substantially flush with the seat 2 by a link mechanism (not shown).

A massage unit 6 having a pair of left and right treatment elements 5 for rubbing and hitting the shoulder, back and waist is provided in the backrest portion 1 so as to be able to move up and down. A pair of right and left vibrating members 7 for massaging the thighs are provided in the seat 2, and are supported by the support device of the present invention as described later.

Next, the frame mechanism will be described.
Reference numeral 8 denotes a base frame extending in the front-rear direction and receiving a total load, and a pair of left and right base frames is provided. Two connecting frames 9 are provided between the pair of base frames 8. From the upper surface of the base frame 8 adjacent to the welded portion between the base frame 8 and the connecting frame 9, a total of four support frames 10
And the support frames 10 on each of the left and right sides
A seat frame 11 serving as a frame of the seat 2 is fixed on the upper part. A connecting frame 12 is provided on the near side between the left and right seat frames 11, and forms a framework of the seat 2 together with the seat frames 11.

At the front ends of the right and left seat frames 11, a rectangular footrest frame 13 serving as a framework of the footrest 3 is rotatably mounted by a support shaft 14. Reference numeral 15 denotes a reinforcing frame temporarily provided at the center of the footrest frame 13 over the left and right.

At the rear of the left and right seat frames 11, a support shaft 16 projects inward, and the support shaft 16 rotatably supports a backrest frame 17 serving as a framework of the backrest portion 1. Have been. The backrest frame 17 has a rectangular shape along the outline of the backrest portion 1.

A seat mounting plate 18 is welded to the upper surfaces of the left and right seat frames 11, and between the seat mounting plates 18,
One support sheet 19 is stretched via a plurality of hooks 20. The support sheet 19 functions to support the load applied to the seat 2.

The seat frame 11 and the footrest frame 13 are covered with a cushion material 21 to form the seat 2 and the footrest 3. The backrest portion 1 is configured by covering the backrest frame 17 with a cushion material 22 and a back cover cover 23.

The armrest portion 4 is constituted by a fan-shaped frame 24 having a hollow inside, and a rubber cover 25 for an armrest is mounted on the upper surface of the frame 24. Frame 2
4 is fixed to the support frame 10 and the seat frame 11. The lower part of the hollow portion of the frame 24 is closed by a decorative plate 60.

Next, the mounting of the vibrating body 7 provided in the seat 2 will be described. As shown in FIG. 3, mounting plates 26 are fixed to the connection frame 12 at two positions on the left and right.
The mounting plate 26 is composed of a bottom wall 27, a front upright wall 28, and left and right upright walls 29, and the front upright wall 28 is fixed to the connection frame 12.

The vibrating body 7 is constructed by sandwiching a motor 32 having an eccentric weight 31 on a shaft 30 between a base 33 made of sheet metal and a cover 34 made of synthetic resin. The base 33 and the cover 34 are connected by screws 35. The vibrating body 7 is supported by the bottom wall 27 of the mounting plate 26 via the elastic body 35.

As shown in FIG. 5, the elastic body 35 is composed of a rubber body 36 having a bottomed cylindrical shape and a coil spring 37. The rubber body 36 is disposed so that the bottom portion 38 is turned upside down and the bottom portion 38 becomes a ceiling portion. An annular groove 39 is formed in the ceiling portion 38, and a peripheral edge of the base 33 corresponding to a supported portion of the vibrating body 7 is fitted into the annular groove 39. The thickness of the rubber body 36 is a thin wall 40 at an intermediate portion in the vertical direction.
In addition, the diameter of the rubber body 36 is larger below the thin portion 40 than above the thin portion 40.

The upper portion of the coil spring 37 is fitted to the inner surface of the small-diameter portion 41 above the thin portion 40 of the rubber body 36, and the lower end of the coil spring 37 is formed in a cylindrical seat 42 formed on the bottom wall 27 of the mounting plate. Is fitted on the outer surface of the.

Numeral 43 denotes a column made of a bolt, which penetrates the axial center of the rubber body 36, and whose lower end is screwed to the cylindrical seat 42.
The upper end penetrates the ceiling 38 of the rubber body. The head 45 of the bolt 43 has a washer 44. The surface of the ceiling portion 38 that comes into sliding contact with the column 43 is a thin wall 46 as shown in FIG. 5, so that the rubber body 36 can easily move in the horizontal direction with respect to the column 43.

As shown in FIG. 4, three supporting devices including the rubber member 36, the coil spring 37, and the column 43 are provided at three places. The vibrating member 7 is supported by the mounting plate 26 by the three supporting devices. You.

When the motor 32 rotates, the vibrating body 7 vibrates due to the function of the eccentric weight 31. This vibration is transmitted to the thighs of the human body via the cushion member 21 and massages.

At this time, the vibration of the vibrating body 7 is absorbed as described below, and the transmission to the mounting plate 26 and thus to the massage machine main body is eased.

The horizontal vibration is mainly absorbed by the rubber body 36. Here, as described above, the surface of the ceiling portion 38 that is in sliding contact with the support column 43 is a thin wall 46, and the rubber body 36
Is configured to easily move in the horizontal direction with respect to the support column 43, so that the absorbing power against horizontal vibrations can be improved.

On the other hand, vertical vibrations are mainly absorbed by the coil spring 37. Here, since the thin portion 40 is provided in the intermediate portion of the rubber body 36, the rubber body 3
6 has a sufficient stroke in the vertical direction, and does not hinder the movement of the coil spring 37. Also, even if a large weight F is applied from above and the rubber body falls downward through the thin portion 40 as shown in FIG. 6, the rubber body is restored by the coil spring 37 so that the rubber body 36 does not deteriorate while buckling. ing.

Further, since the diameter of the lower portion of the thin portion 40 is made larger than that of the upper portion, the installation of the rubber body 36 on the mounting plate 26 can be stabilized, and the deformation mode of the thin portion 40 can be made constant. Deterioration of the part 40 can also be prevented. This is because if the diameters of the upper part and the lower part of the thin part 40 are the same, when the spring 37 expands and contracts and the thin part 40 is deformed,
Although the deformation mode is not constant (goes inward or outward of the thin portion 40 rubber body 36), it is liable to be deteriorated as the deformation is repeated. Can be prevented.

The coil spring 37 includes a rubber body 36.
, It is possible to prevent malfunctions due to foreign matter from adhering.

As described above, the vibrating body 7 is supported by the supporting device that can sufficiently absorb both horizontal and vertical vibrations.

The cushion 5 is provided on the upper surface of the connecting frame 12.
1 is pasted. This is to reduce the feel of the vibrating body 7 when sitting down, so that it does not hinder use as a simple chair for a long time.

The vibrating body 7 is provided so as to correspond to the left and right thighs.
Although the vibration mode is provided, the vibration mode can be such that the left and right are vibrated simultaneously, the right and left are alternately vibrated, or the right and left are intermittently vibrated.

[0034]

According to the first aspect of the present invention, horizontal vibrations are mainly absorbed by the bottomed cylindrical rubber body 36,
The vibration in the vertical direction is mainly absorbed by the coil spring 37. At this time, since the thin portion 40 is formed in the rubber body, the rubber body has a sufficient stroke also in the vertical direction,
Vibration can be sufficiently absorbed in the horizontal and vertical directions without hindering the movement of the coil spring. Also, even if a large weight is applied from above and the rubber body goes down through the thin portion, it can be restored by the coil spring. Further, since the coil spring is covered with the rubber body, it is possible to prevent the malfunction due to the attachment of foreign matter.

According to the second aspect of the present invention, the diameter of the rubber body below the thin part is larger than that above the thin part, so that the rubber body can be stably mounted on the mounting plate, and Deformation of the thin portion due to vibration in the direction can be made regular, and deterioration such as breakage of the rubber body can be prevented.

According to the third aspect of the present invention, the upper part of the coil spring is fitted on the surface of the small diameter part 41 above the thin part of the rubber body, and the lower part of the coil spring is formed on the mounting plate. Since the coil spring is fitted on the surface of the cylindrical receiving seat 42, the coil spring can be stably installed.

According to the fourth aspect of the present invention, since the rubber surface of the ceiling portion 38, the support 43, and the insertion surface are thinned 46,
Vibration absorbing power against horizontal vibration of the rubber body can be improved.

[Brief description of the drawings]

FIG. 1 is a side view of a massage machine using a vibration body support device of the present invention.

FIG. 2 is a main part side view showing a frame structure of the massage machine.

FIG. 3 is a plan view of a main part showing a frame structure of the massage machine.

FIG. 4 is a plan view showing a vibrating body support device of the present invention.

FIG. 5 is a longitudinal sectional view showing the same device.

FIG. 6 is a longitudinal sectional view showing a different state of the device.

[Explanation of symbols]

 26 mounting plate 7 vibrating body 35 elastic body 36 rubber body 37 coil spring 38 ceiling part 39 annular groove 43 support 40 thin part 41 small diameter part 42 tubular seat 46 thin part

Claims (4)

[Claims] 1. An apparatus for supporting a vibrating body on a mounting plate via an elastic body, wherein the elastic body has a bottomed cylindrical rubber body on which a supported portion of the vibrating body is mounted on a ceiling thereof; The rubber body includes a support which is constituted by a coil spring interposed between the mounting plate and the upper portion of the rubber body, penetrates an axial center portion of the rubber body, and has a lower end fixed to the mounting plate, A vibrating body support device, characterized in that an intermediate portion in a vertical direction of a bottomed cylindrical rubber body is a thin portion. 2. The vibrating body support device according to claim 1, wherein the diameter of the rubber body below the thin portion is larger than that above the thin portion. 3. An upper portion of the coil spring is fitted to an inner surface of a small diameter portion above a thin portion of the rubber body, and a lower portion of the coil spring is fitted to an outer surface of a cylindrical seat formed on a mounting plate. 3. The vibrating body support device according to claim 2, wherein: 4. The vibrating body support device according to claim 1, wherein the insertion surface of the pillar at the ceiling portion of the rubber body is thin.