JPS5931241Y2 - electric massage machine - Google Patents

Description

[Detailed description of the invention] This invention is equipped with a pine surge roller that massages the back of the body while rising and falling in the hollow part of the backrest of a chair-type electric massager. This invention relates to an improvement of a chair-type electric pine surger that transmits information to the user's back.

In the embodiment shown in the drawings, 1 is a chair main body, which is composed of legs 2, a seat 3, armrests 4, and a backrest 5.
All parts except for the seats are made of thick leather or synthetic resin, and have a moderate amount of cushioning.

The backrest 5 has a hollow interior, and a threaded rod 8 is rotatably mounted on the upper and lower frame plates 6 and 7 of the backrest 5.

Reference numeral 9 denotes an elevating nut screwed onto a threaded rod 8. Below the nut 9, arms io and io are pivotally attached with an obliquely upward tilt in the direction of the backrest 5.
3' is shaft-mounted, and a guide roller t1. ii
The pine surge rollers 12, 12 are fitted onto the shaft and are rotatably attached to the shaft.

Reference numeral 13 denotes a spring hung between the arm 10 and the lifting NAND 9, which constantly pulls the arm 10 backward.

14, 14 are located on both sides of the threaded rod 8, and are attached to the upper and lower frame plates 6.
, a guide rail with a cross-sectional shape that stands parallel to the
A guide roller 11 is provided in the forward protruding portion 15, 1s.
11 is engaged.

On the front surface thereof, uneven surfaces 15a and 15b are formed in advance in a shape that follows the curvature of the body, and guide rollers 11,
When 11 is in the concave portion 15a, it is pulled by the spring 13, and when it protrudes to the convex portion 15b, the spring 13 is stretched so that it is always in pressure contact with the uneven surface.

M is a motor installed at the lowest part of the backrest 5, which transmits rotation to the threaded rod 8 via a rotation transmission mechanism (not shown) such as a V-pulley or When the upper limit limit switch L1 is pressed, the motor M and the threaded rod 8 are reversed, and the elevating Nand 9 is accordingly lowered.When the protrusion presses the lower limit limit switch L2, the motor M and the threaded rod 8 are It rotates forward and the elevating Nando rises.

Due to such vertical movement of the lifting lever, the uneven surface 15a of the guide rail.

It is already known that the pine surge rollers 12, 12 are configured to perform pine surgery on the back of the body via guide rollers 11°11 that roll downwardly along the guide rollers 11. Since the device simply moves up and down between the lower limit rim switches L1 and L12 at a constant rhythm, it is not possible to meet the wishes of locally and intensively performing pine surgery on the desired back part of the body.

Therefore, the present invention aims to solve these drawbacks and provide a durable structure. Reference numeral 16 is a rectangular sliding frame placed behind the elevating pad 9, and the upper and lower horizontal bars 17, 18 are connected by two parallel vertical bars 19, 19, and an inverted U-shaped clamping piece 20 is provided at both ends of the horizontal bars 17, 18.
．． 21 and bend the central part forward to form a protrusion 22.
．． form 23.

Numerals 24 and 25 are projecting pieces formed by extending one piece of the clamping piece.

The horizontal bars 17 and 18 are made of synthetic resin such as nylon, and the clamping pieces 20.degree. 21 have appropriate elasticity.

When the clamping pieces 20 and 21 of the sliding frame 16 constructed in this manner are fitted on the left and right sides of the guide rails 14 and 140, the sliding frame 16 comes to rest at a position surrounding the back surface of the lifting nut 9 due to the elastic force of the clamping pieces.

The proximity switches S0 and S2 are located between the horizontal bars 17.18, and are installed between the vertical bars 17.18 with an appropriate distance from the lifting NAND 9, and are connected to the upper proximity switch S1 and the lower proximity switch. A magnet piece 26 corresponding to S2 is attached to the rear side of the elevating NAND 9.

FIG. 6 is an electrical circuit diagram of an embodiment adopted to operate the mechanism of the present invention. First, switch 27 of power source E is turned on, and relay 28 that switches the rotation direction of motor M between forward and reverse directions is turned off. As a result, current flows through the contact 29 of the motor M, causing the motor M and the threaded rod 8 to rotate in the normal direction, and the pine surge roller 12 12 starts to rise along with the elevating pad 9 along the guide rail.

Lifting and lowering Nando 9 while the pine surge rollers 12 and 12 are rising.
hits the upper protrusion 22 of the sliding frame 16 and pushes it up, so that the sliding frame 16 rises along with the lifting nut 9,
At the highest position, the protrusion 24 is at the upper limit mint switch L1
Press to turn it on.

When the upper limit mint switch is turned on, the relay 28 is also turned on, and current flows to the motor M and the contacts 30, 29, causing the motor to rotate in the reverse direction, thereby causing the threaded rod 8 to also rotate in the reverse direction, so that the pine surge rollers 12, 12 are lowered.

During this downward movement, the elevating NAND 9 hits the lower protrusion 28 of the sliding frame 16 and pushes it down, and the sliding frame 16 descends together with the Elevating NAND 9.

At this time, the coil 28' of the relay 28 has contacts 3L32, a point changeover switch 33, and a lower limit switch L.
2, the relay 28 maintains itself.

When the pine surge roller 12°12 reaches the lowest position, the lower protrusion 25 of the sliding frame 16 pushes the lower limit switch L2 to turn it off.

As a result, the relay 28 is also turned off, and the motor M and the threaded rod 8 rotate normally again.

By repeating this operation continuously, roller pine surgery is performed over the entire back of the body using the pine surgery rollers 12.12.

Next, when the user switches the point changeover switch 33 at the same time as the pine surge roller descends to a position where the user desires to locally perform pine surge, or somewhat earlier, the magnet piece 26 of the lifting nut 9 will eventually move downward and close. switch S2
, the relay 28 is turned off again, and the motor M is rotated in the forward direction to turn off the pine surge rollers 12,1.
2 rises.

Along with this, the magnetic piece 26 is placed in the upper proximity switch S1.
When approaching , the upper proximity switch S1 is turned on, the motor M is reversely rotated, and the pine surge rollers 12, 12 are lowered.

This repetitive motion causes the mansage rollers 12, 12 to move up and down a short distance between the upper and lower proximity switches 51t82, making it possible to perform local pine surgery.

According to the present invention, an elevating nut with a pine surge roller pivotally attached to the hollow interior of the backrest of the chair is provided, and proximity switches are installed above and below the sliding frame surrounding the back of the elevating nut, and corresponding magnet pieces are attached. Since it is attached to a lifting lever and configured to electrically restrict the forward and reverse rotation of the threaded rod, it can be moved up and down in a short range using the pine surge roller, continuously hitting the desired position, such as the shoulder or lower back where stiffness tends to occur. The durability of the switching mechanism has been dramatically improved because repeated pine surges can be performed and local switching is performed using a proximity switch and magnet.

In addition to pine surgery on the entire back, it is also possible to perform pine surgery on desired areas repeatedly, so it has great practical effects as a pine surgery machine.

[Brief explanation of the drawing]

Figure 1 is a front view showing the outline of the electric pine surge machine, Figure 2
The figure is a side view, Figure 3 is a rear view showing the main parts of the present invention, Figure 4 is a sectional view taken along line A-A in Figure 3, and Figure 5 is taken along line B-B in Figure 3.
The sectional view and FIG. 6 are electrical circuit diagrams in this embodiment. 5...Backrest, 8...Threaded rod, 9...
...Elevating Nando, 12 ... Pine surge roller, 16 ... Sliding frame, Sl and S2 ...
Proximity switch, 26...Magnetic piece.

Claims (1)

[Scope of utility model registration request] A threaded rod and a guide rail are erected and fixed in the hollow part of the backrest, an elevating nand is screwed onto the threaded rod, and the forward and reverse rotation of the motor causes a pine surge roller to move up and down along the front of the guide rail along with the upper limit mint switch. In a normal electric pine surge machine configured to move up and down between the upper limit switch and the lower limit switch, a sliding frame is elastically attached to the back of the guide rail, and the upper and lower parts of the sliding frame are close to each other. By attaching the switch and attaching a magnetic piece corresponding to the proximity switch to the back of the lifter and switching the point changeover switch for pine surge over the entire length of the back of the body and local pine surge, the sliding frame can be set at a fixed short distance. This electric mansage machine is characterized in that the upper and lower proximity switches are closed by magnets attached to the lifter so that the threaded rod can repeatedly move forward and backward.