JP2003116950A - Chair type massage machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chair type massage machine capable of obtaining comfortable massage feelings and completely housing a massage roller in a backrest when not performing massaging. SOLUTION: A solenoid coil 20, in which a plunger 19 is fitted and inserted to be freely slid, is attached to the oscillating terminal part of a roller supporting arm 5 provided to be oscillated in the longitudinal direction of the backrest 4. The plunger 19 is energized backward by an energizing member 22, a massage roller 7 is attached to be freely rotated on the front end of the plunger 19, the plunger 19 is moved forward against the energizing force of the energizing member 22 by electrification to the solenoid coil 20, and the massage roller 7 is protruded toward the front side of the backrest 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chair-type massage machine that massages the back side of a body with a massage roller that moves up and down along a backrest.

[0002]

2. Description of the Related Art In a conventional chair-type massage machine, while sitting on the massage machine, a massage roller built into the backrest moves up and down on the back side of the body, while performing acupressure.
It is configured to perform various massage operations such as a hitting operation and a kneading operation.

In a conventional chair-type massage machine, as shown in FIG. 5, a massage roller R is rotatably attached to the tip of a roller support arm L that swings back and forth, and an arm drive mechanism M. When the swing shaft O provided is rotated, the massage roller R together with the roller support arm L fixed to the swing shaft O are moved backward as shown in (A) and forward as shown in (B). Rock to and from position.

The arm drive mechanism M is mounted on an elevating body (not shown) provided in the backrest so as to be vertically movable. A nut that screws with a screw shaft N that is rotatably supported in the backrest is fixed to the lifting body.

When the screw shaft N is rotatably driven by a lifting motor (not shown), the lifting body as well as the nut screwed with the lifting shaft ascends or descends according to the rotation direction of the screw shaft N, and as a result, The massage roller R also moves up and down, and the part that massages the body moves.

[0006]

In the conventional massage machine of this type, when performing the hitting operation with the massage roller, it is necessary to swing the roller support arm at a high speed, so that the light hitting operation is difficult and satisfactory. I couldn't get a good massage feeling.

Further, the strokes before and after the massage roller can be adjusted or changed when the finger pressure is applied by the massage roller because the swing stroke of the roller support arm to which the massage roller is attached is constant. There wasn't.

Further, since the back and forth movement of the massage roller is performed only by the swing of the roller support arm, the stroke of the back and forth movement cannot be sufficiently taken, and the massage roller R is moved to the retracted position as shown in FIG. 5 (A). Even when there is a part of the backrest, it protrudes slightly forward from the front X of the outer frame of the backrest, and when the massager is used like a normal chair or sofa when the massage is not performed, the massage roller hits the back and is comfortable to use. There was a problem that was bad.

Therefore, the present invention solves the above-mentioned problems in the prior art, provides a good feeling of massage, and allows the massage roller to be completely stored in the backrest when the massage is not performed. The purpose is to provide a type massage machine.

[0010]

In order to achieve the above object, the chair-type massage machine of the present invention comprises an elevating body which is provided so as to be vertically moved by being guided by a guide frame incorporated in a backrest, and the elevating body. A roller support arm having one end rotatably supported around a horizontal axis of the backrest oriented in the left-right direction and the other end swingable in the front-back direction of the backrest, A solenoid coil, which is attached to the other end of the roller support arm and has a plunger whose axis is oriented in the swing direction of the roller support arm, is slidably fitted in the axial direction of the plunger. The solenoid coil is equipped with a massage roller mounted rotatably around an axis parallel to the rotation axis and a biasing member for biasing the plunger in the backward direction with respect to the solenoid coil. In a magnetic force generated by energizing the,
The plunger moves forward against the urging force of the urging member, and the massage roller projects toward the front of the backrest.

In the chair type massage machine of the present invention,
It is desirable to make the current supplied to the solenoid coil variable. For example, by changing the current flowing in the solenoid coil using a power supply whose effective voltage is variable by phase control, the force applied when acupressure the body with the massage roller is performed. Can be adjusted.

[0012]

1 and 2 are a side view and a front view including a partial cross section showing an embodiment of a chair-type massage machine (hereinafter, simply referred to as a massage machine) of the present invention. . As shown in these figures, the massage machine 1 is provided with a seating portion 3 on an upper portion of an underframe 2 and a backrest 4 behind it.

In the massage machine 1 of this embodiment, the backrest 4 is fixed to the underframe 2, but the backrest 4 is tiltable (reclining) to the rear of the seat 3. It is also possible to In addition, armrests 5 and 6 are provided on both left and right sides of the seating portion 4.

Inside the backrest 4, a massage mechanism 8 having a pair of left and right massage rollers 7 for massaging the back side of the body while sitting on the seat 3 is incorporated, and the front side of the backrest 4 is shown. An exterior cloth 4A is stretched on the inside, and a cushion material 4B is arranged inside the exterior cloth 4A as shown in FIG.

As shown in FIG. 2, the massaging mechanism 8 is guided between a pair of left and right guide frames 9 to support the backrest 4
It has a lifting body 10 that moves up and down inside. Also,
An upper frame 11 and a lower frame 12 for connecting the respective guide frames 9 are provided at the upper and lower ends of the left and right guide frames 9,
These members rotatably support bearings near both ends of the screw shaft 13, respectively.

The threaded portion of the screw shaft 13 has its thread portion raised and lowered 1
It is screwed into a nut (not shown) fixed to 0, and when the screw shaft 13 rotates, the lifting / lowering body 10 moves up or down according to the rotation direction.

A toothed pulley 14 is fixed to a portion of the screw shaft 13 protruding below the lower frame 11, and the toothed pulley 14 is a motor of a lifting motor 15 attached to the lower frame 11. It is arranged in the same plane as the toothed pulley 16 fixed to the shaft.

A toothed belt 17 is stretched between the toothed pulleys 14 and 16, and when the lifting motor 15 is driven, the toothed pulley 16 is rotated to rotate the toothed belt 17. Is transmitted to the toothed pulley 14 via the screw shaft 1
3 is designed to rotate.

On the other hand, the left and right massage rollers 7 are provided on the free end sides of the pair of left and right roller support arms 19 provided on the arm drive mechanism 18 mounted on the lifting body 10.

These roller support arms 19 oscillate in the front-back direction of the backrest 4 in the same phase by a motor (not shown) incorporated in the arm drive mechanism 18, and the massage roller 7 applies acupressure to the back side of the body. .

In the present invention, the solenoid coil 20 is fixed to the free end side of each roller support arm 19. A plunger 21 whose axis is oriented in the swinging direction of the roller support arm 19 is slidably inserted in these solenoid coils 20 in the axial direction, and the massage roller 7 is rotatably held at the front end of the plunger 21. Has been done.

Although not shown, the plunger 21 is so arranged that the rotation axis of the massage roller 7 is always kept parallel to the rotation axis of the swing shaft 18A to which the upper end of the roller support arm 19 is fixed. The rotation of the solenoid coil 20 is stopped about its axis, and only the axial displacement with respect to the solenoid coil 20 is held.

FIG. 3A shows the massage roller 7 retracted to the retracted position, and FIG. 3B shows the massage roller projected to the protruding position. As shown in FIG. When the solenoid coil 20 is in a non-excited state, that is, in a non-energized state, the solenoid coil 20 is always retracted to the retracted position by the repulsive force of the compression coil spring 22 used as a biasing member.

That is, the compression coil spring 22 is assembled between the spring washer 23 arranged at the rear end surface of the solenoid coil 20 and the spring washer 24 fixed at the rear end of the plunger 21 in a state of being compressed by a predetermined amount. When not energized, the stop ring 25 attached to the front end of the solenoid coil 20 abuts on the middle of the plunger 21, and the front end of the massage roller 7 attached to the front end of the plunger 21 is , And is retracted to the position indicated by the chain line a.

On the other hand, the solenoid coil 20 is in the excited state,
That is, when energized, the plunger 21
The magnetic force generated by the solenoid coil 20 moves forward against the urging force of the compression coil spring 22, and the front end of the massage roller 7 projects to the position indicated by the chain line b. In this embodiment, the stroke of the massage roller 7 with respect to the solenoid coil 20 is 20 mm to 30 mm.
It is set between mm.

The plunger 21 has a second half 2 in the axial direction.
1A is an iron-based magnetic material and the front half portion 21B is an aluminum-based non-magnetic material.
When 0 is energized, the latter half 21A is generated by the magnetic field generated.
Is drawn into the solenoid coil 20 and the first half 21
B is projected forward.

At the front end of the front half portion 21B of the plunger 21, a roller shaft 7A is fixed at a right angle to its axis,
The massage roller 7 is rotatably attached to the roller shaft 7A through a bearing incorporated therein.

Next, FIG. 4 is a diagram for explaining the operation of the massage roller 7. In FIG. 4A, the massage roller 7 is retracted from the outer frame front surface X of the backrest 4 to the inside. At this time, the solenoid coil 20 is not energized, the plunger 21 is in the retracted position with respect to the solenoid coil 20, and the roller support arm 19 is also in the retracted position.

When the massage roller 7 is in this position, the outer cloth 4A covering the massage roller 7 (see FIG. 1).
(See FIG. 2), the surface is flat, so that the massage machine 1 can be used like an ordinary chair or sofa without feeling discomfort even when massage is not performed.

Further, FIG. 1B shows the roller support arm 1
When the solenoid 9 is in the retracted position, the solenoid coil 20 is energized to cause the plunger 21 to project. In this state, the massage roller 7 projects slightly forward of the outer frame front surface X of the backrest 4.

At this time, the outer cloth 4A is actually pressed against the back side of the user with the portion pressed by the massage roller 7 protruding forward. Therefore, the solenoid coil 2
When energization to 0 is repeated intermittently, the plunger 21 reciprocates, and the massage roller 7 can perform a striking operation.

Further, FIG. 7C shows the state of FIG.
The roller support arm 19 is rotated about the swing shaft 18A to the forward position, and the massage roller 7 is projected to the maximum extent from the front surface of the backrest 4.

By swinging only the roller support arm 19 back and forth, the massage roller 20 can perform acupressure massage. In the present embodiment, the current flowing to the solenoid coil 20 can be adjusted by using a power source in which the effective voltage is variable by phase control, and the protrusion output of the plunger 21 is adjusted according to the current value supplied to the solenoid coil 20. Changes and the reaction force acting on the massage roller 20 from the body reaches the protrusion output of the plunger 21, the plunger 21 retracts, so that the force of the acupressure can be adjusted to a desired value.

Further, by intermittently energizing the solenoid coil 20 while swinging the roller support arm 19, both finger pressure and tapping can be performed simultaneously, and the massage effect can be enhanced.

In the present embodiment, the pair of roller support arms 19 are fixed to the swing shaft 18A of the arm drive mechanism 18 at the upper ends of the roller support arms 19 so that they always swing back and forth in synchronization in parallel. However, the arm drive mechanism 18
In addition, a rubbing shaft having journal portions at both ends whose axes are inclined on the same side with respect to the rotation axis, and a finger-pressure shaft having eccentric journal portions at both ends with respect to the rotation axis at the opposite ends of the rotation axis, respectively. The roller support arms 19 are provided so as to be parallel to each other, and the middle portion of the roller support arms 19 is supported by a journal portion of the rubbing shaft as a bearing. It may be a structure connected through

In this case, the kneading shaft and the acupressure shaft can be driven by separate motors. When the kneading shaft is fixed and the acupressure shaft is driven, the pair of roller support arms 19 swing back and forth. Then, the massage roller 7 performs an acupressure action on the body, and when the acupressure shaft is fixed and the rubbing shaft is driven, the pair of massage rollers 7 repeat the approaching and separating action to perform the rubbing action on the body. You can

[0037]

As described above, according to the invention described in claim 1, the amount of protrusion of the massage roller toward the front of the backrest is such that the forward and backward stroke of the roller support arm is added to the forward and backward stroke of the plunger. Therefore, the massage roller can be completely stored in the backrest when the massage operation is not performed. As a result, when it is not used for massage, the massage machine can be used as if it were a normal chair without any discomfort.

Further, since the massage roller can be advanced and retracted at a high speed by intermittently supplying power to the solenoid coil at a short cycle, a light hitting operation can be realized, so that the finger pressure is performed by the swinging movement of the roller supporting arm. The striking operation can be performed by the plunger moving back and forth by the solenoid coil, and the feeling of massage can be improved. Further, because of the structure, it is possible to perform the acupressure action and the tapping action at the same time, so that the massage effect can be enhanced synergistically.

According to the second aspect of the present invention, the protrusion output of the plunger changes according to the value of the current supplied to the solenoid coil, and the reaction force acting on the massage roller from the body becomes the protrusion output of the plunger. When it reaches, the plunger retracts, so that the force with which the massage roller presses against the body can be adjusted according to the user's preference.

[Brief description of drawings]

FIG. 1 is a side view including a partial cross section showing an embodiment of a chair-type massage machine of the present invention.

FIG. 2 is a side view including a partial cross section showing an embodiment of the chair type massage machine of the present invention.

3A and 3B are explanatory diagrams of the operation of the plunger, FIG. 3A is a state where the massage roller is retracted to the retracted position, and FIG.
The state where the massage roller is projected to the projecting position is shown.

4A and 4B are diagrams for explaining the operation of the massage roller. FIG. 4A is a state in which both the roller support arm and the plunger are retracted and the massage roller is retracted into the backrest, and FIG. In the retracted position, only the plunger protrudes, and the massage roller protrudes to the intermediate position. (C) shows a state in which both the roller support arm and the plunger protrude forward, and the massage roller protrudes to the maximum forward of the backrest.

5A and 5B are diagrams illustrating the operation of a massage roller in a conventional chair-type massage machine, where FIG. 5A shows a state where the massage roller is retracted, and FIG. 5B shows a state where it protrudes forward.

[Explanation of symbols]

1 massage machine Two frame 3 Seat 4 backrest 4A exterior cloth 4B 5, 6 armrests 7 massage rollers 8 massage mechanism 9 Guide frame 10 Lifting body 11 upper frame 12 lower frame 13 screw shaft 14 Toothed pulley 15 Lifting motor 16 toothed pulley 17 Toothed belt 18-arm drive mechanism 18A swing axis 19 Roller support arm 20 solenoid coil 21 Plunger 22 Compression coil spring (biasing member) 23, 24 Spring washer

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) A61H 23/02 357 A61H 23/02 357 39/04 39/04 V F term (reference) 3B084 JA02 JC13 4C074 AA04 BB05 CC11 CC17 DD04 GG03 HH02 4C100 AD21 AE11 AF02 AF03 AF07 AF17 BA05 BB03 BB06 CA06 CA08 DA05 DA06 EA10 EA12 EA13 4C101 BA01 BB05 BB06 BC22 BD06 BD30 BE07

Claims (2)

[Claims] 1. An elevating body provided so as to move up and down by being guided by a guide frame built in a backrest, and one end of the elevating body is rotated around a horizontal axis lined in the left-right direction of the backrest. A roller support arm that is rotatably supported and is provided such that the other end thereof swings in the front-back direction of the backrest, and a swing of the roller support arm that is attached to the other end of the roller support arm. A solenoid coil in which a plunger with an axis oriented in the direction is slidably inserted in the axial direction, and a massage roller attached to the front end of the plunger rotatably around an axis parallel to the rotation axis of the roller support arm, Equipped with an urging member that urges the plunger in the backward direction with respect to the solenoid coil, the magnetic force generated by energizing the solenoid coil causes the plunger to resist the urging force of the urging member. Advanced Te, chair type massage machine, characterized in that the massage roller is configured so as to protrude toward the front of the backrest. 2. The chair-type massage machine according to claim 1, wherein the current supplied to the solenoid coil is variable.