JPH08289913A - Neck back massager - Google Patents

Abstract

PURPOSE: To move a massaging ring to both sides of the back and the back of the neck for massaging the back surface and both sides of the line of the backbone by rotating a feed screw and drive shaft normal and reverse with an electric motor to move a feed bed along between guide rails by the rotation of the feed screw. CONSTITUTION: When massaging rings 17, 17 are operated in a fixed position in the use of a massager for the back of the neck, an electric motor 4 is rotated while a clutch mechanism 5 is disconnected. Then, only a drive shaft 3 is rotated and the massaging rings 17, 17 repeat the swing action for expanding and contracting the interval between both massaging rings to perform the massage. Also when the massaging rings 17, 17 are moved, the clutch mechanism 5 is connected. Then, gear cases 14, 14 start to erect along with the rotation of the feed screw 2 and the massaging rings 17, 17 perform the swing action under the erected condition. When the erected condition or the condition on the way of erection is wanted to be maintained, the clutch mechanism 5 is disconnected to stop the rotation of the feed screw 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a neck muscle massaging machine in which a kneading ring operated by an electric motor is moved from the shoulder to the position of the neck muscle to loosen the muscle and improve blood circulation.

[0002]

2. Description of the Related Art Heretofore, various massage machines have been developed in which a massaging ball operated by an electric motor is applied to various parts of the body to loosen a muscular body and promote blood circulation.

Conventionally, however, there is no dedicated device for massaging the neck muscles, and the user uses a foot massager or a shoulder massager to shift the body to a position where the neck muscles hit the massaging balls. Had to massage.

[0004]

By the way, in order to massage the flat back and the neck muscle at the position depressed from the back from both sides, it is enough to move the massaging balls from the back along the neck muscle. Can not get the massage effect.

Therefore, it is necessary to use a kneading ball as a kneading ring, and a mechanism for moving the kneading ball so as to project to a position where the neck muscle can be clamped from both sides by the kneading ring.

The present invention has been made in view of the above circumstances, and a massage ring is provided on the massage machine side to both sides of the back and neck without the user moving the body while leaning against the body. It is an object of the present invention to provide a neck muscle massaging machine that can sufficiently massage the back surface and both sides of the neck muscle, which has conventionally been insufficient in massage effect, by moving.

[0007]

In order to achieve the above object, in the neck muscle massaging machine of the present invention, the feed screw and the drive shaft rotate in the forward and reverse directions along the guide rails arranged side by side with a gap. The feed screw is connected to an electric motor, the feed screw is connected to the electric motor through a clutch mechanism, and the feed screw is screwed to a feed nut fixed to the feed base between the guide rails. A worm wheel is attached to the feed base. A fixed rotating shaft is pivotally installed, and the drive shaft is inserted into the shaft holes of the linear bearing and the worm with the worm fixed between the linear bearings and the drive shaft being meshed with the worm wheel. The lowermost gear of the parallel gear group is connected to both ends of the rotary shaft, and meshes with the fan-shaped gear on the outer periphery of the lower end of the gear case that supports the parallel gear group. A rack is fixed along the guide rail with a length substantially equal to the arc length of the fan gear, and a kneading shaft provided with a kneading ring is connected between the uppermost gears of the parallel gear groups on both sides. Rollers are provided at both ends of the kneading shaft at positions where they can come into contact with the guide rails, and limit switches provided at both ends on the track of the feed table respectively rotate forward and backward with respect to the electric motor. The feature is that switching is performed.

Further, it is preferable that the two rubbing rings are rotatably provided in an eccentric state at positions spaced apart from the rubbing shaft.

[0009]

In the above structure, the feed screw and the drive shaft are rotationally driven in the forward and reverse directions by the electric motor that rotates in the forward and reverse directions. However, since the feed screw is connected to the electric motor via the clutch mechanism, the rotation drive may be stopped by disconnecting the clutch mechanism. By this rotation of the feed screw, the feed base on which the feed nut is fixed moves along the guide rails.

Since the feed table has fixed limit switches at both ends on the track, when the feed table moves to both ends on the track, it hits the limit switch to open and close to switch between forward and reverse rotation of the electric motor. The feed table is provided with an electric signal for reciprocating movement.

Since the linear bearing is held by the feed bar, it freely moves in the axial direction with respect to the drive shaft and rotates together with the drive shaft, so that the feed bar is free to move along the drive shaft. When the drive shaft is rotated by the electric motor, the linear bearings rotate together to rotate the worm fixed between the pair of linear bearings.

As a result of the worm wheel being rotated in response to the rotation of the worm, the rotary shaft pivotally mounted on the feed base rotates to rotate the parallel gear group, and further to rotate the rubbing shaft to rotate the rubbing ring. Can be rotated.

Also, since the rack is fixedly installed with a length substantially equal to the arc length of the fan gear, the position where the fan gear meshes with the rack is limited.

Therefore, even if the feed bar moves at a position where the fan gear is not meshed with the rack, the gear case holding the fan gear is in the lying state, and the rollers on both ends of the fir shaft contact the guide rails on both sides. The rollers on both sides move away from the guide rails when the feed bar moves to the position where the fan gear meshes with the rack. The ring rotates in this rising position.

Further, when the rubbing ring is formed as a pair of rotatably provided in an eccentric state at a position spaced apart from the rubbing shaft, the pair of rubbing rings can narrow or widen the separation width from each other. It is possible to rotate while.

[0016]

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

FIG. 1 is an overall plan view showing a cross section of a main part of a neck muscle massaging machine according to the present invention. FIG. 2 is an overall transverse cross-sectional view showing a cross section at a substantially central position of the feed table of the scruff massager of FIG. FIG. 3 is an enlarged sectional view of the periphery of the feed table of FIG. FIG. 4 is a vertical cross-sectional view of FIG. 1, showing the gear group visible. 5 is a vertical cross-sectional view of FIG.
The gear case is shown in a visible state. FIG. 6 is a partially enlarged plan view in which the inside of the feed table of FIG. 1 is enlarged. FIG. 7 is a partial cross-sectional view of the kneading ring.

In FIG. 1, a pair of guide rails 1 and 1 are arranged side by side in an outer case 10 with a space therebetween with both ends fixed by holding plates 31 and 31. Between these guide rails 1 and 1, a feed screw 2 is provided along the guide rail 1.
The drive shaft 3 is rotatably provided by bearings 32 so as to be spaced apart from the holding plates 31 and 31.

These feed screw 2 and drive shaft 3
An electric motor 4 for performing both forward and reverse rotations is fixedly installed in the outer case 10 at one end side of the. Since the pulley 33a fixed to the output shaft 4a of the electric motor 4 and the pulley 33b fixed to the end portion of the drive shaft 3 are connected by the belt 33, the drive shaft 3 drives the electric motor 4 to rotate. You can always rotate by.

Further, one gear of the reduction gear mechanism 35 is pivotally mounted on the connecting shaft 34 fixedly provided at the end of the drive shaft 3, and the connecting shaft 34 is provided with the clutch mechanism 5. The clutch mechanism 5 can connect and disconnect the connecting shaft 34 and the reduction gear mechanism 35.

The other gear of the reduction gear mechanism 35 is fixed to the end of the feed screw 2, and when the clutch mechanism 5 is connected, the feed screw 2 is rotated by the drive of the electric motor 4 to disengage the clutch mechanism 5. When this happens, the rotation of the feed screw 2 is stopped. However, even when the feed screw 2 is stopped, as long as the electric motor 4 is rotating, the drive shaft 3 is rotated by driving the belt 33.

A feed table 6 is provided between the guide rails 1 and 1. As shown in FIG. 1, the feed table 6 accommodates a feed nut 7 described later and an outer frame 6a that holds a pair of linear bearings 11, and a gear wheel 8 described later, as shown in FIG. A protruding frame 6b for pivotally mounting 9
And both end frames 6c, 6c pivotally provided on both sides of the rotary shaft 9, respectively.

The feed screw 2 is attached to the outer frame 6a of the feed base 6.
And the drive shaft 3 are penetrated.

In FIG. 6, the feed screw 2 is screwed into a feed nut 7 fixed to the outer frame 6a, and the feed screw 2 is rotated by an electric motor 4 so that the feed screw 2 is moved along the feed screw 2. The feed table 6 is adapted to reciprocate.

The drive shaft 3 includes a pair of linear bearings 11 held between the outer frames 6a of the feed base 6,
11 is inserted into the shaft hole of the worm 12 fixed between the shaft bearing 11 and the linear bearings 11, 11. Both ends of the linear bearings 11, 11 are rotatable with respect to the feed base 6. .

As the linear bearing 11, a well-known linear motion ball bearing is used, and the passage 1 for circulating the ball bearing 11a in the axial direction inside the outer cylinder.
1b is formed, and a large number of ball bearings 11a are in rolling contact with the drive shaft 3 while rolling in the passage 11b.
Numeral 1 is movable in the axial direction thereof and rotates together in the rotation direction.

Further, as shown in FIG. 3, the worm 12 is meshed with a worm wheel 8 fixed to the rotary shaft 9. Therefore, in FIG. 1, as described above, the feed screw 2
When the feed table 6 moves due to the rotation of, the linear bearings 11 and 11 held by the feed table 6 and the worm 12 in the middle move together with the feed table 6.

Moreover, since the linear bearings 11 and 11 rotate following the rotation of the drive shaft 3, the worm 12 fixed in the middle of the linear bearings simultaneously rotates.

A rotary shaft 9 is pivotally mounted on the protruding frame 6b of the feed table 6, and a worm wheel 8 is fixedly mounted on the rotary shaft 9, and the worm wheel 8 is meshed with the worm 12.

Therefore, in FIG. 3, the drive shaft 3 is driven by driving the electric motor 4 as described above.
When is rotated, the rotation shaft 9 is rotated through the rotation of the worm 12 and the rotation of the worm wheel 8.

As shown in FIG. 3, the lowermost gears 13a, 13a of a gear group 13 formed by arranging a plurality of gears 13a, 13b ... In parallel are connected to both ends of the rotary shaft 9 and the uppermost gear 13b, A kneading shaft 18 is connected between 13b.

Further, as shown in FIG. 4, a gear case 14 for supporting these gear groups 13 is formed so as to surround the outer circumference of the gear group 13, and a fan-shaped gear is provided on the outer circumference of the lower end of the gear case 14. 15 is formed, and the fan-shaped gear 15
Are meshed with racks 16, 16 fixed along the inside of each of the pair of guide rails 1, 1.

However, the rack 16 has a length substantially equal to the arc length of the fan gear 15, and the rack 16 is fixedly installed at a substantially intermediate position between the guide rails 1 and 1 on both sides, whereby the rack 16 is fixed. The meshing position of the fan gear 15 with respect to is specified.

As shown in FIG. 7, the rubbing ring 17 is provided so as to eccentrically rotate with respect to the rubbing shaft 18 at two positions spaced apart from each other. That is, the middle of the arm 41 extending to the outer periphery of the boss 40 fitted eccentrically to the kneading shaft 18 is circumferentially divided into two, and a bearing 42 is provided therebetween, and a rim fixed outside the arm 41. A rubber ring 44 is fixedly provided on the outer periphery of 43, and the rubbing ring 17 is rotated in an eccentric state with respect to the rubbing shaft 18.

As shown in FIG. 3, such two kneading rings 17, 17 are kneaded with a kneading shaft 18 at predetermined intervals.
When the kneading shaft 18 is rotated,
The distance between the rubbing rings 17, 17 can be narrowed or widened, and the neck muscles sandwiched between the rubbing rings 17, 17 can be repeatedly pressed and loosened from both sides.

Since the two rubbing rings 17, 17 are rotatably provided with respect to the rubbing shaft 18 by the bearings 42, when the rubbing rings 17, 17 are in contact with the nape or the like, the rubbing shaft 18 is Even if you rotate
The rubbing rings 17, 17 do not follow the rotation of the rubbing shaft 18, and the rubbing rings 17, 17 by the eccentric movement described above.
It only repeats the swinging motion to widen or narrow the gap between them.

Also, as shown in FIG. 3, a kneading shaft 1
Rollers 19, 19 are provided at both ends of 8 at positions where they can contact the guide rails 1, 1, that is, above the guide rails 1, 1.

As shown in FIG. 5, such rollers 19,
Until the fan-shaped gear 15 meshes with the rack 16 due to the movement of the feed base 6, the gear case 14 is in the laid state shown by the chain double-dashed line, and the rollers 19 and 19 on both sides contact the guide rails 1 and 1. To roll.

That is, the rollers 19, 19 play a role of keeping the horizontal movement positions of the massaging rings 17, 17 constant when the gear case 14 is in the lying state, but the feed table 6 further moves and the fan-shaped gear 15 meshes with the rack 16. Then, the gear case 14 rises around the rotating shaft 9, and at this time, the rollers 19 and 19 are separated from the guide rails 1 and 1, and the kneading rings 17 and 17 also move to the rising position and knead at this rising position. The rings 17 and 17 perform the swinging motion similarly to the above.

Further, in FIG. 1, limit switches 2 are provided at both ends of the orbit of the feed table 6 which moves as described above.
1, 21 are provided, and the feed base 6 is the limit switch 2
The limit switches 21 and 21 are opened and closed by hitting 1 and 21.

Further, a control circuit 45 for controlling the opening / closing signals sent from the limit switches 21, 21 and various electric signals sent from the switches 46 is provided, and the control signal of the control circuit 45 is sent to the electric motor 4. The lever 4 can be rotated forward and backward and stopped, and the clutch mechanism 5 can be controlled to stop the feed screw 2 while the drive shaft 3 is rotating. Stopping the feed screw 2 means that the rubbing rings 17, 17 perform a swinging motion at a fixed position.

As shown in FIG. 5, the rubbing ring 1
A flexible cover 47 that surrounds 7, 17 is fixed so as to surround and fix above the outer case 1, so that the user can knead the massaging rings 17, 1.
It is possible to feel the swinging motion of the device 7 through the cover 47.

The operation of the neck muscle massaging machine of the present invention constructed as above will be described. In use, the user may place his or her neck in a central position with the rack 16 along the guide rails 1, 1. In this state, as shown by the chain double-dashed line in FIG. 5, when the feed base 6 is on the clutch mechanism 5 side, the back of the user is positioned on the kneading rings 17, 17 at this position.

Kneading ring 1 with this fixed position maintained
When the electric motor 4 is rotated with the clutch mechanism 5 disengaged to operate the actuators 7 and 17, only the drive shaft 3 rotates without rotating the feed screw 2, so that the rubbing shafts 17 and 17 are not rotated. At this fixed position, the rocking motion for expanding and contracting the mutual separation width is repeated, and the massager can be massaged by the rocking motion of the kneading shafts 17, 17 on the back against which it is applied.

When it is desired to move the massaging rings 17, 17, the clutch mechanism 5 is connected to start the rotation of the feed screw 2. Also in this case, the rubbing rings 17 and 1 are always
Since 7 performs the swinging motion, the massaging rings 17, 17 continue the swinging motion while moving the massage position of the back.

Next, when the feed base 6 is moved by the rotation of the feed screw 2 and the fan gear 5 meshes with the rack 6, as shown in FIG.
As shown in, the gear case 14 starts to stand up, and the rubbing rings 17 and 17 perform a swinging motion in a standing up state. When it is desired to maintain the rising state or the state in the middle of rising, the clutch mechanism 5 may be disengaged to stop the rotation of the feed screw 2.

As described above, when the user puts the rubbing rings 17 and 17 on the nape at the standing position, the rubbing rings 17 and 17 on both sides perform a swinging motion while holding the nape, so that A massage effect is provided by pressing and loosening the kneading rings 17, 17.

Further, the rubbing rings 17, 17 are moved as long as the feed screw 2 is operated within the range of the limit switches 21, 21. Continue to operate this feed screw 2, and the feed base 6 will move to one of the limit switches 2
When it hits 1, the feed screw 2 rotates in the opposite direction by the reverse rotation of the electric motor 4 and moves the feed table 6 in the opposite direction,
The rubbing rings 17, 17 can be moved back and forth.

[0049]

As described above, the neck muscle massaging machine of the present invention moves the position of the massaging ring in a straight line to massage the shoulder or the like, or raises the massaging ring along the recess of the neck muscle at a predetermined position. Since it is possible to massage, it is possible to efficiently apply a massage ring to the neck muscle at a position recessed from the line of the shoulder and the occipital region for massage.

Further, in the neck muscle massaging machine of the present invention, the massage operation at the fixed position of the kneading ring and the massage operation at the predetermined position in the standing state of the kneading ring can be freely changed electrically.

If the rubbing rings are eccentrically and rotatably provided at two places spaced apart from the rubbing shaft, the pair of rubbing rings swings while changing the distance between them. It is possible to repeatedly perform the pressing and relaxing motions of the neck muscles in the meantime, and the massage effect can be further improved.

[Brief description of drawings]

FIG. 1 is an overall plan view showing a cross section of a main part of a neck muscle massaging machine according to the present invention.

FIG. 2 is an overall transverse cross-sectional view showing a cross section at a substantially central position of a feed table of the scruff massager of FIG.

3 is an enlarged cross-sectional view of the periphery of the feed table of FIG.

FIG. 4 is a vertical cross-sectional view of FIG. 1, showing a gear group visible.

FIG. 5 is a vertical cross-sectional view of FIG. 1, showing the gear case in a visible state.

FIG. 6 is a partially enlarged plan view in which the inside of the feed table of FIG. 1 is enlarged.

FIG. 7 is a partial cross-sectional view of a kneading ring.

[Description of sign]

 1 ... Guide rail 2 ... Feed screw 3 ... Drive shaft 4 ... Electric motor 5 ... Clutch mechanism 6 ... Feeding base 7 ... Feed nut 8 ... Worm wheel 9 ... Rotating shaft 11 ... Linear bearing 12 ... Worm 13 ... Gear group 13a ... Lower gear 13b ... Top gear 14 ... Gear case 15 ... Fan gear 16 ... Rack 17 ... Rubbing ring 18 ... Rubbing shaft 19 ... Roller 21 ... Limit switch

Claims (2)

[Claims] 1. A feed screw (2) and a drive shaft (3) are connected to an electric motor (4) that rotates forward and backward along a space between guide rails (1, 1) that are arranged side by side,
The feed screw (2) is connected to the electric motor (4) through a clutch mechanism (5), and a feed nut (7) fixed to the feed base (6) between the guide rails (1, 1). ), A rotary shaft (9) having a worm wheel (8) fixedly mounted on the feed base (6) is pivoted, and a linear bearing (1) is attached to the drive shaft (3).
The worm (12) fixed between the drive shaft (3) and the drive shaft (3) is inserted into the shaft holes of the linear bearings (11, 11) and the worm (12) in a state where the worm (12) fixed between the worm (12) and the worm wheel (8) is engaged. ) Is inserted, and the lowermost gear (13) of the parallel gear group (13) is attached to both ends of the rotary shaft (9).
The rack (16) meshed with the fan-shaped gear (15) around the lower end of the gear case (14) supporting the parallel gear group (13) is connected along the guide rails (1, 1). The fan gear (15) is fixed with a length substantially equal to the arc length of the fan gear (15), and the parallel gear groups (13, 1) on both sides are fixed.
A kneading shaft (18) provided with a kneading ring (17) is connected between the uppermost gears (13b, 13b) of 3), and both ends of the kneading shaft (18) contact the guide rails (1, 1). Rollers (19, 19) are provided at positions where they can come into contact with each other, and limit switches (21, 21) provided at both ends on the track of the feed table (6) are respectively positive relative to the electric motor (4). Neck muscle massager characterized by switching between reverse rotation. 2. The two rubbing rings (17, 17) are rotatably provided in an eccentric state at positions spaced apart from the rubbing shaft (18). The described neck muscle massager.