JPH1189903A - Massage device - Google Patents

Abstract

(57) Abstract: An object of the present invention is to provide a massaging device in which a large tension is prevented from being generated in a belt for driving a holding member having a massaging roller. SOLUTION: A holding member 21a, 21b provided with a mass roller 53 is connected to a belt 15 driven and driven by a driving device 10, and a reciprocating drive of the belt is performed to make the holding member interlock. In the apparatus, the driving device has a pair of driving pulleys 14 around which both ends of the belt are wound, and when one driving pulley winds up the belt, the other driving pulley is wound. Along with running the above belt by feeding out the belt wound around,
A flexible portion 147 that is an elastic deformation portion that is elastically deformed by a tension applied to the belt is formed at a portion of the drive pulley where the belt is wound.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a massage device for massaging the back of a user who is lying upright.

[0002]

2. Description of the Related Art Generally, a massage device of this type has a rectangular plate-shaped base as shown in Japanese Patent Publication No. 2-23181, for example, and a pair of guide rails is provided on the upper surface of the base. They are provided in parallel. A driving device is provided at one end of the guide rail. This drive is 2
And a pair of drive pulleys that are driven to rotate in opposite directions.

A passage is formed in the guide rail, and a belt is inserted through the passage. One end and the other end of this belt are wound around the pair of drive pulleys, and the intermediate portion is engaged with a roller rotatably provided at the other end of the guide rail. It is folded.

[0004] A support having a rotatable mass roller is provided on the base so as to run along the guide rail. The holder is connected to the belt.

Accordingly, a pair of driving pulleys of the driving device are driven to rotate in opposite directions, one end of the belt is wound around one driving pulley, and the other end is driven by the other driving pulley.
When the belt runs by being pulled out of the belt, the holding body is linked to the running of the belt.
The back surface of the user is massaged by the girroller.

In such a massage device, one end of the belt is wound up by one driving pulley, and the belt is fed out from the other driving pulley, so that the holding member travels together with the belt. Like that.

However, the pair of driving pulleys are driven to rotate at the same speed. for that reason,
When the holding member travels from one end of the guide rail to the other end, and the amount of winding of the belt by the driving pulley on the winding side increases, the outer diameter of the belt increases.

Therefore, the length of the belt to be wound up by one rotation of the driving pulley becomes longer, but the length of the belt drawn out by one rotation of the other driving pulley becomes shorter. Come. As a result, the tension generated in the belt due to the difference in length increases,
The tension may cause the belt to be easily damaged at an early stage, or a large compressive force may be generated on the guide rail via the roller.

[0009]

As described above, the belt provided along the guide rail is reciprocated to move the holding member provided with the mass roller in a reciprocating manner.
In such a device, one end of the belt is wound on one of the pair of drive pulleys and unwound from the other, so that a change in the amount of winding may generate a large tension on the belt. .

The present invention has been made on the basis of the above circumstances. It is an object of the present invention that, when tension is generated in a belt due to a change in a winding amount, a belt wound around a driving pulley is pulled out by the tension. As a result, the tension generated in the belt can be reduced.
To provide an image processing device.

[0011]

According to a first aspect of the present invention, a holding member provided with a mass-roller is connected to a belt driven by a driving device. In a massage device for reciprocating the belt and interlocking the holding member, the driving device has a pair of driving pulleys wound at both ends of the belt, and one driving pulley is provided. When the belt is wound, the belt is run by unwinding the belt wound around the other drive pulley, and the portion of the drive pulley where the belt is wound is provided with the belt. An elastically deformable portion which is elastically deformed by an applied tension is formed.

According to a second aspect of the present invention, in the first aspect of the present invention, the elastically deformable portion forms a portion around which the belt is wound into an arcuate portion, and both ends of the arcuate portion can be elastically deformed. It is characterized by being formed in.

According to a third aspect of the present invention, in the first aspect of the invention, the elastically deforming portion has a concave portion formed in a portion where the belt is wound, and a movable member is formed in the concave portion in a radial direction of the driving pulley. Characterized by being elastically displaceable.

According to the first aspect of the present invention, the portion of the drive pulley around which the belt is wound is provided with the elastically deformable portion which is elastically deformed by the tension applied to the belt.
When a predetermined tension or more is applied to the belt, the elastically deformable portion is elastically deformed by the tension. Therefore, the portion of the belt wound around the driving pulley is pulled out of the driving pulley by the length of the elastic deformation portion elastically deformed, so that the tension generated on the belt is reduced. . According to the second and third aspects of the present invention, the elastic deformation portion described in the first aspect can be securely provided on the drive pulley with a simple configuration.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 12 show a first embodiment of the present invention. The mattress-type massage device shown in FIG. As shown in FIG. 2, the base 1 has a lower layer 1a made of a relatively hard urethane foam or the like, and a sheet-like synthetic resin formed in a step ball shape and laminated on the upper surface of the lower layer 1a. And the lower layer 1 made of urethane foam or the like.
It is formed to be softer than a and has a three-layer structure of an upper layer 1c laminated on the upper surface of the middle layer 1b. This upper layer 1c
Has a smaller width dimension than the lower layer 1a and the middle layer 1b.

In the base 1 having such a structure, each of the layers 1a to 1c is freely bendable, so that the base 1 can be bent into two or three from an intermediate portion in the longitudinal direction. A pair of guide rails 4 formed of a flexible synthetic resin such as nylon or polypropylene are laid in parallel on the upper surface of the middle layer 1b at both ends in the width direction of the upper surface of the base 1. This guide rail 4 is shown in FIGS.
And a band-shaped base 4a as shown in FIGS.
L-shaped support portions 4b are formed at both ends in the width direction of the base portion 4a. A pair of L-shaped pieces 4c are provided on the upper and lower surfaces of the intermediate portion of the base 4a so as to face each other. As a result, a passage 4d is formed on each of the upper and lower surfaces of the base 4a, and the side of the upper passage 4d serves as a running surface 4e of wheels 27 described later.

As shown in FIG. 2, both ends of a U-shaped holder 4f whose middle portion is held by the middle layer 1b are engaged with the support portion 4b of the guide rail 4. Thereby, the guide rail 4 is held on the base 1.

As shown in FIGS. 7 (a) and 7 (b), at one or two places in the middle of the guide rail 4, a part of the guide rail 4 excluding the base 4a is provided at a predetermined interval. A plurality of slits 5 are formed. Therefore, the guide rail 4 can be bent together with the base 1 from the slit 5 portion.

As shown in FIG. 1, a driving device 10 is provided on the upper surface of the base 1 at one end in the longitudinal direction. The driving device 10 has a case 11. A drive source 12 in which a speed reducer and a motor are integrated is provided in the case 11. The drive source 12 drives each pair of gears 13 provided on both sides of the case 11 to rotate in opposite directions. Each gear 13 has a driving gear.
The rim 14 is provided integrally.

As shown in FIG. 9, each pair of drive pulleys 1
4, both ends of a belt 15 made of a metal band such as stainless steel are wound. The intermediate portion of the belt 15 is inserted into the upper and lower passages 4d of the guide rail 4, and the intermediate portion is a roller 16 as a reversing member provided rotatably at an end of the guide rail 4. It is hung on.

When the drive source 12 operates, each pair of gears 1
When the belt 3 is driven in the reverse direction, the belt 15 is paid out from the drive pulley 14 of one gear 13 and the other gear 1 is driven.
3 is taken up by the drive pulley 14. Thus, the belt 15 is driven to travel along the path 4d.

For example, referring to FIG.
When the wheel 14 is rotated in the direction of the arrow X and the other drive pulley 14 is rotated in the direction of the arrow Y, the portion of the belt 15 passed through the upper passage 4d is driven to run in the direction indicated by the arrow Z. I have.

The belt 15 is reciprocally driven within a certain traveling range. For example, the distance traveled by the belt 15 is detected by the number of revolutions of the drive pulley 14 and the like, and the detection signal is used to change the direction of rotation of the gear 13 by the drive source 12.

The drive pulley 14 is formed integrally with the gear 13 by a synthetic resin such as nylon (trade name). As shown in FIGS. 12 (a), 12 (b) and 12 (c), On one side surface of the gear 13, a ring-shaped portion 142 around which the belt 15 is wound is provided with one end surface fixed. A pressing plate 143 (shown in FIG. 12A) for preventing the belt 15 from coming off is provided on the other end surface of the ring-shaped portion 142, and the ring-shaped portion 142 is reinforced inside the ring-shaped portion 142. A cross-shaped reinforcing member 144 is provided.

The ring-shaped portion 142 has four arc-shaped portions 1.
It is divided into 45. The middle part of the inner surface of each arc-shaped part 145 is connected to the reinforcing member 144, and both ends are separated from the side surface of the gear 13 and the side surface of the holding plate 143 by separation grooves 146 as shown in FIG. Have been. Thereby, both ends of the arc-shaped portion 145 are formed as flexible portions 147 as elastically deformable portions that can be elastically deformed radially inward of the ring-shaped portion 142.

Further, one of the four arc-shaped portions 145 is
12 (c), a mounting recess 149 for fixing the end of the belt 15 with a screw 148 is formed.

Therefore, when a radially inward force is applied to the outer peripheral surface of the drive pulley 14, the flexible portion 147 of each arc-shaped portion 145 is elastically deformed radially inward. Has become. That is, when a large tension is applied to the belt 15 and the tension is transmitted to the outer peripheral surface of the drive pulley 14, the flexible portion 147 is elastically deformed radially inward, and the outer peripheral length of the drive pulley 14 is increased. Becomes smaller. Therefore, the belt 15 is pulled out from each drive pulley 14 by the length thereof, and returns to the original state when the tension is released.

A first holder 21a and a second holder 21b are provided between the pair of guide rails 4 as shown in FIG. Each of the holders 21a and 21b has a hollow shaft 22 as a support shaft as shown in FIG. Both ends of the hollow shaft 22 are provided with mounting holes 2 formed in the support 23.
4 is detachably fitted. A screw shaft 25 is inserted through the hollow shaft 22. Both ends of the screw shaft 25 protrude to the outer surface side of the support 23, and the nut 2
6 is screwed.

As shown in FIGS. 3 and 5, a pair of wheels 27 are rotatably provided on both sides of the lower end of the support 23 by a support shaft 27a. The wheels 27 run on the guide surface 4e of the guide rail 4 as described above.

A wire 3 is provided on the upper outer surface of the support 23.
0 are fixed by screws 31 at both ends. The middle part of the wire 30 is passed through a cylindrical holding part 33 of a guide member 32 provided at a middle part of the lower outer surface of the support 23 as shown in FIGS. The portion of the wire 30 led out from the holding portion 33 is fixed by crushing the portion 33, and a tube formed on a mounting plate 34 fixed to the upper surface of the belt 15 as shown in FIG. It is passed through the portion 34a, and is connected and fixed through the cylindrical portion 34a. Thus, the wire 30 causes the holding members 21a and 21b to move in conjunction with the running of the belt 15 via the mounting plate 34.

As shown in FIGS. 4 and 5, a pair of roller supports 35 each having a substantially W-shaped side surface are swingably provided on the hollow shafts 22 of the holders 21a and 21b. It is positioned and provided by a collar 36 externally fitted to 22. The pair of roller supports 35 provided on the first holding member 21a have a larger spacing in the width direction of the base 1 than the pair of roller supports 35 provided on the second holding member 21b. Is set.

As shown in FIG. 4, the roller support 35 has a support hole 36 inserted into the hollow shaft 22 at an intermediate position thereof.
Are formed, and first support shafts 38 are protruded from both end surfaces in the width direction at both end portions in the longitudinal direction. That is, one first roller support 35 is provided with four first support shafts 38. A concave curved surface 39 is formed between the first support shaft 38 of the roller support 35 and the boss 37.

A roller bearing 41 is mounted on the first support shaft 38. The roller bearing 41 has a substantially T-shaped side surface, and the first support shaft 3 is provided in the middle thereof.
8 is formed with a first mounting hole 42 rotatably fitted thereto. A first key 43 is formed on the outer peripheral surface of the base end of the first support shaft 38, and a first key groove 44 engaging with the first key 43 is formed in the mounting hole 42. Are formed.
The first key 43 is provided at an angle of 40 degrees in the circumferential direction, and the first key groove 44 is provided at an angle of 130 degrees. Accordingly, the roller bearing 41 can swing in the front-rear direction within a range of 45 degrees with the first support shaft 38 as a fulcrum.

The roller bearing 41 has a second direction along a longitudinal direction thereof, which is a direction orthogonal to the first mounting hole 42.
Mounting holes 45 are formed. This second mounting hole 45
A second support shaft 46 shown by a chain line in FIG. 4 is rotatably inserted with both ends protruding. Both ends of the second support shaft 46 are cut into a D-shaped cross section, and a block 47 is formed in the third mounting hole 48 into which a third mounting hole 48 having a D-shaped cross section is fitted. It is provided. Roller support shafts 49 project from both end surfaces of the block 47 in a direction orthogonal to the axis of the third mounting hole 48.

A second key groove 51 is formed at both ends of the second mounting hole 45 at an angle of 80 degrees in a circumferential direction, and an end face of the block 47 is engaged with the second key groove 51. The second key 52 is formed over 40 degrees in the circumferential direction. As a result, the block 47, that is, the roller support shaft 49, together with the second support shaft 46,
It is possible to swing about 20 axes in the left and right directions intersecting the above-mentioned front-back direction in the range of 20 degrees.

As shown in FIGS. 5 and 6, each roller shaft 49 has a mass roller having an arc-shaped projection 53a on its outer peripheral surface.
A roller 53 is rotatably mounted. That is, each of the holders 21a and 21b is provided with 16 mass-rollers 53, and these mass-rollers 53 are moved in the front-rear and left-right directions by the roller bearing 41 and the roller 49. It is swingable within the range described above.

The roller bearing 41 and the block 47
And the massiller 53, the first support shaft 38,
A spring ring (not shown) is attached to the ends of the second support shaft 46 and the roller support shaft 49 so that the spring shaft cannot be pulled out.

The upper surface and the lower surface of the base 1 are covered with a cover 54 made of stretchable fabric. A tension is applied to the cover 54, whereby the cover 54 comes into pressure contact with a mass roller 53 provided on each of the holders 21 a and 21 b, thereby restricting each mass roller 53 from swinging freely. ing. This state is shown in FIGS. 10 (a) and 10 (b).

As the cover 54, although not shown in detail, a holding cover made of an elastic cloth for restricting the swing of the massaging roller 53, and an exterior cover for covering at least the upper surface side of the base body 1. -And a two-piece structure. In this case, the holding cover may have a band shape that covers only the holding members 21a and 21b.

In the massage device having such a configuration, when the user receives the massage, if the user lies on the cover 54, the drive source 12 is operated to activate the belt 15.
Is reciprocated, and the first holder 21a and the second holder 21b are linked by the belt 15.

The first holder 21a reciprocates from the back to the waist of the user, and the second holder 21b runs from the buttocks to the legs. The massaging rollers 53 of the pair of roller supports 35 provided on the first holding body 21a massage the waist from both sides of the user's spine, and the second holding body 21b A pair of rows of the first holding body 21a
The mass rollers 53 of the pair of roller supports 35 provided at a smaller interval than the rubber supports 35 massage the rear sides of both legs from the buttocks.

The massaging roller 53 is shown in FIG.
As shown in FIG. 11A, the holders 21a and 21b swing at a predetermined angle in the front-rear direction along the running direction and in the lateral direction intersecting the running direction as shown in FIG. Therefore, the massiller 53 provided on each of the supports 21a and 21b swings in the front-rear direction along the unevenness in the height direction of the back of the user, for example, the unevenness in the waist portion, and the legs Since it swings according to a laterally curved surface such as the back surface, the massage can be reliably performed by contacting the uneven back surface of the user.

In addition, since the roller support 35 is swingably provided on the hollow shaft 22, the mass swing roller 53 is smoothly swung in the front-rear direction. That is,
Since it swings in response to even a slight uneven shape on the back of the user, a good massage effect can be obtained.

Each holder 21 of the massiller 53
The swing angle along the width direction of a and 21b is determined by the second key 52 provided in the block 47 and the second key groove 51 formed in the second mounting hole 46 of the roller bearing 41. Is regulated by the engagement. Therefore, the massiller 5
3 does not swing too much in the width direction, and the side face does not give the user discomfort.

When the pair of holders 21a and 21b are run, one end of the belt 15 to which these holders are connected is wound around one of the pair of driving pulleys 14 and is separated from the other driving pulley 14. It is paid out. The outer diameter of the one drive pulley 14 is gradually increased by winding the belt 15, and the other drive pulley 14 is reduced in size. Therefore, although the length of the belt 15 wound by one drive pulley 14 in one rotation becomes longer, the other drive pulley 14 becomes longer.
Since the length of the belt 15 fed from the belt 15 becomes shorter, tension is generated in the belt 15 due to a difference between the lengths.

When the tension generated on the belt 15 exceeds a predetermined value, the tension acts on the outer peripheral surface of the driving pulley 14.
As a result, the flexible portions 147 at both ends of the arcuate portion 145 of the drive pulley 14 are elastically deformed radially inward, and the belt 15 is changed by the deformation of the flexible portion 147. Since the belt 14 is pulled out of the drive pulley 14 by the length of the outer periphery of the belt 14, the tension generated on the belt 15 is thereby alleviated.

That is, the belt 1 is driven by one drive pulley 14.
Even if tension is generated in the belt 15 due to the difference between the amount of winding the belt 5 and the amount of reeling out from the other drive pulley 14,
When the tension exceeds a predetermined value, the belt 15 is pulled out from the driving pulley 14 and the tension is reduced. For this reason, it is possible to prevent the tension generated in the belt 15 from becoming too large, and to prevent the guide rail 4 and the base 1 from being compressed and deformed by the tension.

The driving pulley 1 for winding the belt 15
When the outer diameter of the driving pulley 4 and the outer diameter of the driving pulley 14, that is, the amount of the belt 15 wound around the pair of driving pulleys 14, are substantially the same, the winding amount and the feeding amount are substantially the same. Therefore, the tension generated in the belt 15 is minimized.
The position where the winding amount and the feeding amount are substantially the same is set at the center position of the reciprocating stroke of the holders 21a and 21b.

In this embodiment, the drive switch
Although the rim 14 is divided into a plurality of arc portions 145, the number of arc portions 145 may be one instead of a plurality. That is, the ring-shaped part 142 may be formed in a C-shape, and both ends may be the flexible parts 147.

FIG. 13 is a second embodiment showing a modification of the driving pulley 14A of the present invention. In this embodiment, the drive pulley 14A is provided with twelve receiving recesses 151 which are open to the outer peripheral surface thereof and are formed at 180 degrees in the circumferential direction. The tip of each of the receiving recesses 151 is the drive pulley 14.
A base end of a movable member 153 formed on an arcuate surface 152 that forms a part of the outer peripheral surface is slidably accommodated via a spring 154.

A pair of mounting recesses 149 are formed on the outer peripheral surface of the driving pulley 14A at 180 ° intervals in the circumferential direction for mounting and fixing the end of the belt 15 with screws 148.

According to the drive pulley 14A having such a structure, when a predetermined tension or more is applied to the belt 15 wound around the outer peripheral surface, the movable member 1 accommodated in the accommodation recess 151 is
53 elastically deforms the spring 154 to be displaced radially inward.

As a result, the outer peripheral dimension of the drive pulley 14A is reduced, and the belt 15 is correspondingly moved by the drive pulley 14A.
Since the belt 15 is pulled out, the tension generated on the belt 15 is reduced.

That is, similar to the first embodiment, the use of the driving pulley 14A having the above-described structure allows the belt 15 to be used.
The guide rail 4 and the base 1 are prevented from being deformed due to excessive tension generated by the guide rail 4 and the tension.

FIGS. 14A and 14B show a third embodiment of the present invention. This embodiment is a modified example of the driving device 10, in which a pair of driving pulleys 14 are provided coaxially at both ends of a driving shaft 72 which is driven to rotate by a driving source 12 via a gear train 71. . One end and the other end of the belt 15 are wound around one and the other of the pair of driving pulleys 14 in opposite directions.

For example, if one end of the belt 15 is wound clockwise around one drive pulley 14,
The other end is wound counterclockwise around the other drive pulley 14. Therefore, if the drive shaft 72 is driven to rotate clockwise, for example, the belt 15 is wound on the drive pulley 14 on which the belt 15 is wound clockwise, and the drive pulley is wound on the counterclockwise. It is sent out from the ri 14. The drive pulley 14 has the same configuration as that of the first embodiment.

In FIG. 14B, the end of the belt 15 wound counterclockwise on the drive pulley 14 is substantially the same as the end of the belt 15 wound clockwise by the tension roller 73. Adjusted to be the same height.

In such a configuration, as in the first embodiment, when the tension generated in the belt 15 exceeds a predetermined value, the belt 15 moves along the flat portion 14 formed in the drive pulley 14. Since the belt 15 is deformed and pulled out by the length, the belt 15 is prevented from generating an unnecessarily large tension. In the third embodiment, a drive pulley 14A having the configuration shown in the second embodiment may be used.

[0059]

As described above, the present invention according to the first aspect has a pair of drive pulleys around which one end and the other end of a belt are wound, and one of the drive pulleys. In a massaging device in which the belt is run by winding the belt and sending it out of the other drive pulley, and the belt is used to run a holding body provided with a mass roller, the belt of the drive pulley An elastically deformable portion which is elastically deformed by the tension applied to the belt is formed in a portion where is wound.

Therefore, when a predetermined tension or more is applied to the belt, the elastically deformable portion is elastically deformed by the tension. Therefore, the portion of the belt wound around the driving pulley is pulled out of the driving pulley by the length of the elastic deformation portion elastically deformed, so that the tension generated on the belt is alleviated, and the belt is quickly moved. Can be prevented from being damaged. According to the second and third aspects of the present invention, the elastically deformable portion of the first aspect can be reliably formed on the drive pulley with a simple configuration.

[Brief description of the drawings]

FIG. 1 is a plan view of a base body excluding a cover showing an entire configuration of a first embodiment of the present invention.

FIG. 2 is a side view of the holding body with a partial cross section.

FIG. 3 is a perspective view of a support part of the holding body.

FIG. 4 is an exploded perspective view of the roller support.

FIG. 5 is a side view of the holder.

FIG. 6 is a plan view of the holder.

FIG. 7A is a plan view of a guide rail, and FIG. 7B is a side view.

FIG. 8A is a perspective view of a guide member attached to the support, and FIG. 8B is a perspective view of a connection structure between the attachment plate and the wires.

FIG. 9 is a sectional view along a longitudinal direction of a base body showing the same driving device.

FIGS. 10A and 10B are explanatory diagrams of a state in which the mass gyroscope is not swinging.

11 (a) and 11 (b) are explanatory views of a state where the mass gyroscope swings. FIG.

12A is a plan view of a driving pulley, and FIG.
FIG. 3 is a front view of the same state with the presser plate removed, and FIG.

FIG. 13 shows a drive pump according to a second embodiment of the present invention.
FIG.

14A is a plan view of an entire configuration partially showing the third embodiment of the present invention, and FIG. 14B is a side view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Base 10 ... Driving device 14, 14A ... Driving pulley 15 ... Belt 16 ... Rollers 21a, 21b ... Holder 53 ... Mass-roller 147 ... Flexible part (elastic deformation part) 153 ... Movable member (Elastic deformation part) 154 ... spring

Claims (3)

[Claims] 1. A massaging device in which a holding member provided with a mass roller is connected to a belt which is driven and driven by a driving device, and said belt is reciprocated to interlock the holding member. The drive device has a pair of drive pulleys each wound at both ends of the belt, and when one drive pulley winds up the belt, the belt is wound around the other drive pulley. And an elastically deformable portion which is elastically deformed by a tension applied to the belt is formed in a portion of the drive pulley where the belt is wound. Masser
Device. 2. The elastically deformable portion, wherein a portion around which the belt is wound is formed in an arcuate portion, and both ends of the arcuate portion are formed to be elastically deformable. 2. The massage device according to claim 1. 3. The elastically deformable portion is characterized in that a concave portion is formed in a portion where the belt is wound, and a movable member is provided in the concave portion so as to be elastically displaceable in a radial direction of a driving pulley. The massage device according to claim 1, wherein: