JPS607844A - Safety apparatus in massage machine having exchangeable massage roller - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a safety device in a pine surge machine with replaceable pine surge rollers.

The pine surge machine, which performs a so-called insertion action by rolling back and forth on the inner surface of the backrest, has become widely used because it has a relatively simple structure, excellent durability, and is easy to handle. It has the disadvantage that the action is monotonous.

Recently, in order to improve this shortcoming and meet the needs of users, we have made the internal massaging tool replaceable with the pine surge roller, and we have prepared several types of pine surge rollers so that users can install the pine surge roller according to their preference. A pine surge machine has been proposed.

With this improved pine surge machine, replacing the pine surge roller 2 is a little troublesome, but it has the advantage of being able to provide several different pine surge effects with just one machine. If the motor starts up due to contact with the motor, there is a risk of an unexpected accident, and safety is still insufficient.

The present invention provides a safety device that prevents the motor from being started even if an operation switch is accidentally touched during replacement work of the pine surge roller, especially in the pine surge machine as described above in which the pine surge roller is replaceable.

The drawings showing the embodiments of the present invention will be explained below.
As schematically shown in FIG. 1, a pine surge roller main body 3 comprising at least one pair of right and left pine surge rows 21 and a guide roller 2 rotatably attached to a shaft is moved to a guide rail by alternating the rotational direction of a screw shaft 4. In the pine surge machine that reciprocates while rolling on the inner surface of the backrest seat 8 along the axis 5, the pine surge roller main body of the holder arm 8 is pivotally connected to a moving frame 7 having a 6ft nut body screwed onto the screw shaft 4. The support part 9 of No. 3 has a two-sided structure as shown in FIG.
For example, the pine surge roller main body 3 is constructed so that it can be attached and detached from the holder arm 8 by means of a pivot pin 10 and a fastening screw 1. A storage section 1 is provided at the upper part of the backrest section 12 so that the pine surge roller main body 3 can be stored during use.
An opening is provided on the front side of the pine surge roller main body 3 to take it in and out, and a sulin (14. A cover plate 17 consisting of a play plate 15 and side plates 16 formed on both sides thereof.
The cover plate 1 is pivoted to the backrest side frame.
The upper end of the backrest sheet 8 covering the front surface of the cover plate 17 is attached to the upper end of the cover plate 17. It is configured to be fixed to the backrest portion side in the closed position. There are no particular limitations on the locking means of the cover plate 17, but for example, as shown in the figure, there are hook bodies 18 on both sides of the upper end of the cover plate 17.
．． 18 is provided protrudingly, and an operating rod 19 is inserted through the upper part of the backrest portion, and hook members 20 and 2 (1- fixedly attached to the operating rod 19 By rotating the hook body 18
and the hook member 20 can be released from each other. Preferably, a flattened portion 21f is formed in the center of the operating rod 19 as shown in FIGS. 4 and 5, and a groove 22 in which the operating rod 19 is rotatable; The groove 22 of the locking member 24 is provided with a narrow groove 23 in which the flattened portion 21 can fit into the upper part of the groove 22.
At the same time, the locking member 24 is vertically movably suspended from the top plate 25 of the backrest portion and is biased downwardly by the spring 26. As shown in FIG. 5, the locking member 24 is pressed down by the spring 26 and the flattened portion 21 of the operating rod 19 is fitted into the narrow groove 23, that is, the operating rod 19 cannot be rotated. The movable frame 7 is held in the disabled state, and the moving frame 7 is moved to the storage section 1.
3, as shown in FIG.
The operating rod 19 is moved upward to the position where it is removed from the narrow groove 23, and the pine surge roller main body 3 is thus stopped in the housing section 13 together with the movable frame 7.
It is preferable to configure the hook body 18 and the hook member 21 to be in a rotatable state.

As described above, the present invention provides a pine surge machine in which a pine surge roller main body 3 consisting of a pine surge roller l and a guide roller 2, which are rotatably attached to a shaft, is detachably attached to a moving frame 7. Figure and 7th
As shown in the figure, the pine surge roller main body 3 that has reached the storage section 13 and stopped comes into contact with and leaves the idle roller 2 on the back side of the storage section 13 of the pine surge roller main body 3, and is guided. When the detection lever 27 is elastically biased as it rotates toward the roller 2 side, one end of the detection lever 27 is placed at the other end of the detection lever 27 so that the main body 3 of the pine surge roller 2 is connected to the idle roller 2. In the state of contact, the on state is maintained, and as the pine surge roller main body 3 is replaced, the pine surge roller main body 3 is taken out from the moving frame 7 and the detection lever 27 is activated by the spring 28 as shown by the broken line. A switch 29 that turns off when displaced is provided, and the switch 29
Control the electric control circuit 31 of the drive motor by
While the pine surge roller main body 3 is removed from the moving frame 7, that is, until another pine surge roller body 3 is attached to the moving frame 7, the motor is prevented from being driven even if the operation switch is turned on by mistake. It is composed of: Although the embodiment shows a mode in which the switch 29 is operated via the detection lever 27, the switch 29 can be operated without using the detection lever.
Therefore, the presence or absence of the guide roller 2 of the pine surge roller main body 3 may be directly detected.

As mentioned above, the safety device in the pine surge machine of the present invention is as follows:
A pine surge roller main body 3, on which at least one pair of left and right pine surge rollers 1 and a guide roller 2 are rotatably attached to a shaft, rotates on the inner surface of the backrest seat 8 along a guide rail 5 by changing the rotational direction of a screw shaft 4. In a pine surge machine that reciprocates while moving, the pine surge roller main body 3 is removably supported on a moving frame 7 having a nut body 6 screwed onto the screw shaft 4, and a removal opening of the pine surge roller main body 3 is provided. A switch 29 is disposed on the back of the guide roller 2 of the pine surge roller main body 3 located in the storage section 13 having a pine surge roller main body 3, which cuts off the current circuit to the drive motor M when the pine surge roller main body 3 is taken out. Therefore, when you turn on the operation switch and drive the motor, the screw shaft 4 rotates, just like the conventional pine surge machine.
As the movable frame 7 moves up and down, an upper limit switch and a lower limit switch (not shown) operate, and the pine surge roller main body 3 reciprocates a predetermined stroke within the backrest, causing pine surge caused by the transfer of the pine surge rows 21, 1 to the back of the human body. When the storage switch S3 is turned on, the moving frame 7 moves upward to the storage section 13 at the top of the backrest, the storage position arrival switch 30 is activated, the motor M is stopped, and the pine surge roller main body 3 The switch 30 is turned on via the detection lever 27 by the guide roller 2 . Then, in order to replace the pine surge roller main body 3 with a different type, the front face of the storage section 13 is opened, the tightening screw 11 is loosened, the upper half 9A of the support section 9 is opened, and the pine surge roller main body 3 is replaced with the support section 9. When it is removed, the switch 29 is turned off via the detection lever 27f, and the drive motor MO current circuit is shut off. As a result, when the pine surge roller main body 3 is not attached to the movable frame 7, the drive motor M will not be started even if the operation switch is turned on by mistake, so that the pine surge roller main body 3 can be replaced safely. It is possible to prevent unexpected accidents from occurring. Moreover, if the opening is closed with the pine surge roller main body 3 removed, not only will it be impossible for young children to perform mischief, but it will also be possible to use it comfortably as an easy chair.

[Brief explanation of drawings]

Figure 1 is a schematic side sectional view of the company's Matsu Surge machine, Figure 2 is a side view of the movable frame, Figure 3 is a perspective view of the lattice '[+, Figure 4 is the 5V-d row of the operating rod, Figure 6 is a side view of the locking member; Figure 6 illustrates the relationship between the guide roller and the switch; ! 11 is a simplified circuit diagram of a J@v+ motor. DESCRIPTION OF SYMBOLS 1... Pine surge roller, 2... Guide roller, 3... Pine surge roller main body, 4... Spiral shaft, 5... Guide rail, 6... Nut body, 7... Moving frame, 12... Backrest portion, 8... Backrest seat, 13... Storage gR% 2
9...Suichi. 2nd mouth 71st

Claims (1)

[Claims] At least one pair of left and right pine surge rollers and an idle roller are rotatably attached to the shaft, and the pine surge roller main body moves back and forth while rolling on the inner surface of the back seat along the guide rail by alternating the rotational direction of the screw shaft. In the pine surge machine, the pine surge roller is removably supported by a movable frame having a nut body screwed onto the screw shaft, and the pine surge roller is located in a storage section having an opening for taking out the pine surge roller. A safety device for a pine surge machine with a replaceable pine surge roller, characterized in that a switch is disposed on the back of the pine surge roller main body to cut off the current circuit to the drive motor when the pine surge roller main body is removed.