JPH0411704Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The invention is equipped with two shafts: a screw shaft for reciprocating the pine surge device, and a non-circular cross-section shaft that gives the pine surge device a kneading motion. This relates to a pine surge machine.

[Conventional technology]

One or two pairs of pine surge elements are reciprocated within the backrest to perform a rubbing pine surge effect while contacting the back of the human body, and the movement of the pine surge elements is stopped at a desired position to perform pine surge operations such as rocking or pressing. Pine surge machines designed to provide this effect have come into widespread use. As a means for selectively performing the above two types of pine surge action, that is, rubbing pine surge and massaging pine surge, for example, as described in Japanese Patent Application Laid-open No. 59-203559, the raising and lowering reciprocation of the pine surge device part and the The stopping action at the desired position is performed by controlling the forward and reverse rotation of the screw shaft, and the kneading action at the stop position of the device is achieved by controlling the shaft with a non-circular cross section (hereinafter referred to as the square shaft) installed parallel to the screw shaft. ), and is implemented by selectively turning on and off the rotation of the two axes.

[Problem that the invention attempts to solve]

However, in order to selectively control the rotation of the two shafts on and off, as described in the above publication, the movable part of the clutch must be attached to the output shaft driven by the motor via a belt. The movable part is turned on and off by an electromagnetic solenoid, and one of the movable parts of the clutch has a transmission gear to the screw shaft on the side of the engagement part, and a transmission gear to the square shaft on the side of the other engagement part. Each of the movable parts is loosely fitted to the shaft so as to be rotatable, and by turning on and off the electromagnetic solenoid by operating a switch, the movable part engages with the transmission gear for the spiral shaft or the transmission gear for the square shaft. Since it is configured to transmit the rotation of the output shaft to either one, it is possible to selectively rotate either the spiral shaft or the square shaft, but it is also possible to rotate both shafts at the same time. It is not possible to raise and lower the pine surge device while performing the massaging action, and two motors are required to rotate both shafts simultaneously or to selectively rotate one of them.

The present invention provides a pine surge machine that can control the rotation of the two axes at the same time using one motor, and can also selectively control the rotation of the two axes.

[Means for solving problems]

The pine surge machine of the present invention drives gears rotatably attached to a spiral shaft and a square shaft from a gear driven by one motor, and the upper and lower parts of each of these two gears are provided for forward rotation and reverse rotation. A spring-type electromagnetic clutch for rotation is provided, and by turning on the electromagnetic clutch on one side of the gear, forward rotation is transmitted to the shaft, and by rotating the motor in reverse, the electromagnetic clutch on the other side of the gear is turned on. By transmitting reverse rotation to the shaft, it is thus possible to simultaneously rotate the helical shaft and the square shaft in the forward direction when the motor rotates forward, or to selectively rotate one of the shafts in the forward direction. When the pine surge is reversely rotated, the pine surge is configured to simultaneously transmit the reverse rotation to both shafts, or to selectively transmit the reverse rotation to either one of the shafts. It is possible to carry out a massaging action, and also to perform massaging and pine surge by stopping at a desired position.

[Effect]

When the motor rotates in the normal direction, the gears fitted to the screw shaft and the square shaft rotate, respectively. In this state, both axes are stationary. Therefore, when the spring-type electromagnetic clutch for forward rotation provided at the top of the gear of the screw shaft is excited and activated, the forward rotation is transmitted to the screw shaft, the pine surge device rises, and the pine surge device reaches its highest position. When the reed switch is operated in the raised position, the electromagnetic clutch is demagnetized and at the same time, a spring-type electromagnetic clutch for reverse rotation provided at the bottom of the gear is energized, and at the same time, the motor is reversed and the massaging device is lowered. In this way, the pine surge device is raised and lowered by the alternating operation of the electromagnetic clutches provided at the top and bottom of the screw gear and the forward and reverse rotation of the motor, and the pine surge device applies a pine surge action to the human body using the pine surge element. . Then, when the spring-type electromagnetic clutch for forward rotation at the top of the gear on the square shaft is energized while the pine surge device is rising, the forward rotation is transmitted to the square shaft, causing the pine surge element to rotate in the forward direction, increasing the gap between the pine surge elements. When the pine surge device moves and the pine surge device is lowered, when the spring-type electromagnetic clutch for reverse rotation at the bottom of the gear on the square shaft is energized, the reverse rotation is transmitted to the square shaft, causing the pine surge element to rotate in the opposite direction, narrowing the gap between the pine surge elements. direction, and a massaging operation is applied by forward and reverse rotation of the massaging element of the pine surgical device, so that the pine surgical device performs both a rubbing pine surge and a massaging pine surge. Also, at a desired position during the above operation,
When the electromagnetic clutch of the screw shaft is demagnetized, the gear becomes idling, the rotation of the screw shaft stops, the lifting and lowering of the massage device is stopped, and the massaging device performs massaging by rotating the square shaft at that position.

〔Example〕

Hereinafter, the drawings showing the embodiments of the present invention will be explained. FIG.
2 is the screw shaft installed inside the backrest, and 2 is the screw shaft 1.
and 3 is a pine serge element, and as is already known, the pine surge device 4 is raised and lowered by the forward and reverse rotation of the screw shaft, and the pine surge device 4 is moved up and down by the forward and reverse rotation of the screw shaft. When the rotation is controlled, the gear train 6, 7, 8 is transmitted from the gear 5 slidably fitted on the square shaft 2, and the threaded rod 9 is rotated in the forward and reverse directions, and is screwed into the threaded rod 9. The massager 3 moves from side to side and massages the back of the human body. In the figure, reference numerals 10 and 11 are limit switches for controlling the width of lateral movement of the pin serge element and switching an electromagnetic clutch to be described later; 12 is a holder for the pine surging element 3; 13 is a guide rod for the holder 12;
14 is a guide rail, and 15 is a guide roller.

For example, as described above, the present invention is configured such that the pine surge device 4 is moved up and down within the backrest by the forward and reverse rotation of the screw shaft 1, and the pine surge element is moved in the lateral direction by the forward and reverse rotation of the square shaft 2. As shown in FIG. 2, in the pine surge machine made of 18 and 19, and spring-type electromagnetic clutches 2 for forward and reverse rotation are installed at the upper and lower parts of these two gears 18 and 19, respectively.
0, 21, 22, 23 are provided, and when the upper electromagnetic clutch 20 is excited (turned on) when the motor M is in the normal rotation state, the normal rotation of the gear 18 is transmitted to the screw shaft 1, and the pine surge of the pine surge machine is performed. The 4th part of the device is raised and the electromagnetic clutch 20 is demagnetized (off).
As a result, the engagement between the gear 18 and the screw shaft 1 is disengaged, the rotation of the screw shaft 1 is stopped, and the rise of the massage device section 4 is stopped.Similarly, when the electromagnetic clutch 22 is turned on, the gear 19 is turned on. When the forward rotation is transmitted to the square shaft 2 and the pine surge elements 3 move in a direction where the distance between them becomes wider, and the electromagnetic clutch 22 is turned off, the gear 1
9 is disengaged from the square shaft 2, the rotation of the square shaft 2 is stopped, and further, by simultaneously turning on and off the electromagnetic clutches 20 and 22, the forward rotation of both shafts 1 and 2 is simultaneously controlled. It is becoming more and more like this. After the lower electromagnetic clutches 21 and 22 rotate the motor M in the opposite direction, when an on/off operation is performed, the gears 18 and 1 rotate in the opposite direction to the screw shaft 1 and the square shaft 2.
9 engages or disengages, controls the reverse rotation of both shafts 1 and 2 in the same way as the upper electromagnetic clutches 20 and 22 described above, lowers and stops the lowering of the pine surge device 4, and narrows the interval between the pine surge elements 3. Movement in the direction and movement stop are controlled. Figure 3 shows the above-mentioned upper and lower electromagnetic clutches 20, 22, 2.
1 and 23 are shown. That is, the gear 18 is rotatably attached to the intermediate portion 1B of the lower extension shaft 1A of the screw shaft 1 via a boss 24, and circles made of magnetic material are attached to the upper and lower ends of the boss 24, respectively. Boss members 27 and 28 provided with plates 25 and 26 are fixedly fitted onto the extension shaft 1A, and the boss members 2
Ring members 29 and 30 are loosely fitted around the outer peripheries of 7 and 28. Between the ring members 29 and 30 and the gear 18, coil springs 31 and 32, which have one end locked to the ring members 29 and 30 and the other end locked to the gear 18, are connected to the gear 18. The ring members 29, 3 are provided so as to cover the outer peripheries of both the boss members 27, 28 while maintaining a slight gap between the boss 24 and the outer peripheral surfaces of the boss members 27, 28.
0 and the disks 25, 26 is the ring member 2.
Amateurs 33 and 34 fixed to the 9 and 30 sides are arranged with a slight gap from the discs 25 and 26. Electromagnets 35 and 36 are provided on both sides of the free ends of the disks 25 and 26, with a slight gap between them and the electromagnets 35 and 26.
5 and 36 are fixed to the frame 37 of the pine surgical machine. 38, 39 are bearing metals provided at the center of the electromagnets 35, 36, and the electromagnets 35, 36, the discs 25, 26, the armature 33,
34 and coil springs 31, 32 constitute electromagnetic clutches 20, 22 and 21, 23.

Next, the operating procedure of the electromagnetic clutches 20 and 22 will be explained. When the gear 18 rotates forward and the electromagnetic clutch 20 is in a non-energized state, the armature 33, the ring member 27, and the spring 31 rotate in the circumferential direction together with the gear 18. However, the screw shaft 1 and the disk 25 are stationary. In this state, when the electromagnet 35 is energized, the armature 33 is attracted to the disk 25 via the disk 25 and the two are coupled, and a temporary brake is applied to the rotation of the ring member 29, causing the gear 18 and the ring member 2
A speed difference occurs between the two. Due to this speed difference, the inner diameter of the coil spring 31 is reduced, and the outer periphery of the boss member 27 equipped with the disk 25 is tightened by the coil spring 31, so that the rotation of the gear 18 causes the coil spring 31 to tighten. It is transmitted to the boss member 27 fixed to the extension shaft 1A of the screw shaft 1 via the screw shaft 1, and the screw shaft 1 is rotated in the forward direction. When the electromagnet 35 is demagnetized, the coupling force between the disc 25 and armature 33 is released, and the coil spring 31
At the same time, the phase shift of the ring member 29 is restored by the restoring elasticity, and at the same time, the tightening force of the coil spring 31 on the boss member 27 is released, and the rotation of the screw shaft 1 is stopped. Further, when the motor M is reversely rotated and the other electromagnet 36 is energized while the gear 18 is rotating in the reverse direction, the armature 34 is coupled to the disc 26 in the same way as described above, and the armature 34 is used for a temporary braking action at the time of the coupling. Therefore, the inner diameter of the coil spring 32 is reduced, the coil spring 32 tightens the boss member 28, and the rotation of the gear 18 is transmitted to the boss member 28 via the coil spring 32.
is rotated in the opposite direction, and when the electromagnet 36 is demagnetized, the rotation of the screw shaft 1 is stopped by the same operation as described above.

In addition, the electromagnetic clutches 22 and 23 on the upper and lower sides of the square shaft 2
3 has the same structure as that shown in FIG. 3, and the forward and reverse rotation of the gear 19 is transmitted to the square shaft 2 in the same manner, and the explanation of the electromagnetic clutches 22 and 23 on the square shaft 2 side will be omitted.

[Effect of idea]

As described above, the present invention provides a pine surgery machine equipped with a screw shaft 1 for raising and lowering the pine serge device 4 having the pine serge element 3 and a square shaft 2 for moving the pine surge element 3 of the pine surge device 4 from side to side. Gears 18 and 1 are provided on the drive side of 1 and 2, respectively.
9 is rotatably attached to both shafts 1 and 2 and meshed with both gears 18 and 19, and a coil spring 31 is attached to the upper part of each of the gears 18 and 19 when the gears 18 and 19 rotate in the forward direction. Spring-type electromagnetic clutches 20 and 22 are provided for forward rotation, the inner diameter of which is reduced and which transmits the rotation of the gears 18 and 19 to both shafts 1 and 2.
8 and 19 are provided at the bottom of each of the gears 18 and 19 for reverse rotation, which reduces the inner diameter of the coil spring 32 when excited when the gears 18 and 19 rotate in the opposite direction, thereby transmitting the rotation of the gears 18 and 19 to both shafts 1 and 2. Since it is provided with spring type electromagnetic clutches 21 and 23,
The gears 18, 19 are rotated forward or reversely by the gear 17 driven by the motor M.
During the forward rotation of 19, by energizing or demagnetizing one or both of the upper spring-type electromagnetic clutches 20 and 22, one or both of the screw shaft 1 and the square shaft 2 is rotationally controlled, and the pine surge device 4 is raised. , stopping, movement of the pine serge member 3 in one direction (movement to the right or left), and stopping are achieved. Also, by rotating the motor M in the reverse direction and energizing or demagnetizing one or both of the lower spring-type electromagnetic clutches 21 and 23 while the gears 18 and 19 are rotating in the opposite direction, one or both of the spiral shaft 1 and the square shaft 2 can be rotated. Both are rotationally controlled, and the pine surge device 4 is lowered and stopped, and the pine surge member 3 is moved in the opposite direction (leftward or rightward) and stopped.

Moreover, the above operation can be performed by one motor, which is economical, and when in use, the pine surge device 4 can be moved to a desired position and then stopped to operate the pine surge device 3. By operating the pine serge device 3 while raising and lowering the pine serge 4, a composite pine surge of rubbing pine serge and rubbing pine surge can be performed, and
A wide variety of pine surge effects can be obtained, such as by raising and lowering only the pine surge device 4 to perform a rubbing pine surge effect.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is a horizontal sectional view of the pine surge device section of a pine surge machine, Fig. 2 is a front view of the drive section of the spiral shaft and square shaft, and 3. The figure is a sectional view of a spring-type electromagnetic clutch in the drive section. DESCRIPTION OF SYMBOLS 1... Screw shaft, 2... Square shaft, 3... Pine surge element, 4... Pine surge device section, 18, 19... Gear, 20, 21, 22, 23... Spring type electromagnetic clutch, 31, 32... …coil spring.

Claims (1)

[Scope of utility model registration request] By the forward and reverse rotation of the screw shaft 1, a pine serge device 4 having a pine serge element 3 moves up and down within the backrest portion to perform rubbing pine surge, and by the forward and reverse rotation of the square shaft 2, the pine surge element moves from side to side to perform massaging. In a pine surge machine configured to perform pine surge, gears 18 and 19 are mounted on the driving sides of both shafts 1 and 2 so as to be rotatable with respect to both shafts 1 and 2, respectively. mesh,
Spring-type electromagnetic clutches 20, 22 for forward rotation are provided at the top of each of the gears 18, 19, and spring-type electromagnetic clutches 21, 23 for reverse rotation are provided at the bottom of each of the gears 18, 19. When one or both of the spring-type electromagnetic clutches 20, 22 for forward rotation are energized during the forward rotation of the gears 18, 19, the electromagnetic clutches 20, 2
The inner diameter of one or both of the coil springs 31 of 2 is reduced to prevent the forward rotation of the gears 18 and 19 from the spiral shafts 1 and 2.
transmission to one or both of the square shafts 2, and the gear 1
When one or both of the spring type electromagnetic clutches 21, 23 for reverse rotation are energized during the reverse rotation of the electromagnetic clutches 8, 19, the inner diameter of the coil spring 32 of one or both of the electromagnetic clutches 21, 23 is reduced. A pine serge machine characterized by being configured so that the reverse rotation of the gears 18 and 19 is transmitted to one or both of the screw shaft 1 and the square shaft 2.