JPS59203558A - Clutch mechanism in massager - 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 an improvement of a clutch mechanism in a pine surge machine, in which a pine surge roller is reciprocated by rotating a screw shaft and reciprocated along the screw shaft, and the pine surge is applied to the back of a human body. At the same time as applying the action, the rotation of the screw shaft is stopped and the movement of the pine surge roller is stopped, and another sub-shaft ft is driven to cause the pine surge roller to swing, thereby performing acupressure-like pine surgery by swinging the pine surge roller. This invention relates to a clutch mechanism that switches the rotation of the screw shaft and subshaft in a pine serge machine that can be used.

In conventional pine serge machines, belt 4 is connected from motor M.
A movable part 42 of the clutch is attached to a shaft 41 driven through a shaft 41, and the movable part 42 is engaged with a lever 45 which is angularly rotated by a plunger 44 that moves in and out in accordance with the on/off operation of the electromagnetic lens 43. A transmission gear 48 to the i@47 is placed on the engagement pawl 46 side below the movable part 42 of the clutch, and a transmission gear 48 to the subshaft 50 is placed on the engagement pawl 49 side above the iJ moving part 42. 51 gold each shaft 4
1, and turn on and off the electromagnetic solenoid 43 by operating a switch (not shown). ! The rotation sound of the shaft 41 is generated by engaging the 4J gear 51, and the screw tji [
I] 47 or from the transmission gear 51 to the countershaft 5 via the gear 53
A clutch mechanism configured to transmit data to either one of 0 and 0 was used. In the present invention V, l has a compact structure in which the plunger and lever are integrated with the movable part and is compactly assembled.The drawings showing the embodiments of the present invention will be described below.

A movable core 2.3 is vertically slidably fitted onto a rotatably supported spline shaft 1 made of a non-magnetic material, and the movable core 2.3 is in +0 contact with a joint surface portion that straddles each other. The horizontal plate part of the fixed iron core 7 has a constricted part 4 fully formed, and is provided with an annular protrusion 5 and a horizontal plate part 6 in the shape of a mountain, which are arranged opposite to each other with a slight gap on the outer periphery of the constricted part 4. A trough-like electromagnetic coil 8.9 is installed above and below with 6 in between, and the electromagnetic coil 8
．． A yoke 10 whose outer side is immersed in the yoke 9 is fixed to a casing 11, and an engaging pawl is provided on the upper surface of the upper movable iron core 2 and protrudes from the lower surface of a clutch holder 12 which is rotatably held in the casing. An engaging pawl 14 that engages and disengages from the movable iron core 3 of the F section is provided protruding from a clutch gear 17 that is fixed to a spline shaft l that engages with a gear 16 that is fixed to a screw shaft 15. An engaging pawl 19 that engages and disengages from the engaging pawl 18 is provided protrudingly, and return springs are provided between the clutch holder 12 and the upper movable iron core 2 and between the clutch gear 17 and the lower movable iron core 3, respectively. 2o and 21 are interposed, and the lower end of the subshaft 22 is fixed to the screw shaft 15 or the clutch holder 12 through the engagement and disengagement of the upper and lower movable iron cores.
Either one of the two is selectively rotated completely. A nut 24 fixed to the frame 23 of the base 7 is fitted to the screw shaft 15, and a worm 25 that is movable together with the base frame 23 and rotates together with the subshaft 22 is fitted to the subshaft 22. And it meshes with this warm 25 ^
A small gear 27.27t1'' is provided on both sides of the gear 26, and a carrier gear 28 is engaged with the carrier gear 28, and the gear 27 on both sides of the carrier gear 28 and the horizontal shaft 29 are rotatably connected to each other.
CM gears 31 and 31 provided on the same side of the eccentric cam bodies 30 and 30 shown in FIG. 33 is a pine surge roller, 34 is a guide rail 35
The rotation ratio of the eccentric cam body 30 and the eccentric cam 34 on which the pine surge roller 33 is rotatably mounted is l. :2.

Since the present invention has such a configuration, when the electromagnetic coil 8 is energized, the upper movable core 2 is attracted to the fixed core 7 and is pushed down toward the lower movable core 3, so that the engagement of the lower movable core 3 is prevented. The mating pawl 19 and the engaging pawl 18 of the clutch gear 17 mesh with each other as shown in FIG. Therefore, the motor (
The ten rotations of the spline shaft (not shown) through the googly 36 rotate the screw shaft 15 through the gear 16 meshing with the clutch gear 17 . When the screw shaft 15 rotates, the pine surge roller 33 moves up and down via the nut 24 screwed into the screw shaft 15, and the pine surge roller 33 applies pine surge to the back. When the current of the electromagnetic coil 8 is cut off, the upper and lower movable iron cores 2
．． 3 returns to 21 and returns to the neutral state.

Next, when current is applied to the electromagnetic coil 9, the lower movable core 3 is attracted to the fixed core 7, pushing the upper movable core 2 upward, and the engaging pawl 14 protruding from the top of the upper movable core 2 and the engaging pawl 13 of the clutch holder 12 engage with each other as shown in FIG. As a result, spline shaft 1
The rotation is transmitted to the subshaft 22 via the upper movable iron core 2 and the clutch holder 12. When the subshaft 22 rotates,
The worm 25 rotates, and the worm 25, gear 26, carrier gear 28, small gear 27, gear 32, and eccentric cam 30
The horizontal axis 2 is
The pin serge low 233.33, which is eccentrically supported by the shaft 9, rotates while being stopped at a predetermined position. The horizontal shaft 29 and the eccentric cam body 34 rotate at different rotation speeds.
I will be treated. As a result, the pine surge roller 33 is sensitive to the rotation of the eccentric cam body, and its working surface is a of the backrest cloth 37.
An acupressure-like pine surge is obtained in which a rocking motion in the b direction is added using the shaft of the eccentric cam 30 based on the rotation of the horizontal shaft 29 as a fulcrum while moving in and out of the direction. Also, when the current in the electric coil 9 is cut off, the upper and lower movable iron cores 2.3 are activated by the return spring 20.
is returned to the neutral condition shown in FIG.

In this way, in the present invention, the spline shaft lv
The movable iron core 2.3 with the C engaging claw is made vertically movable and is placed on the base of the rotation fiJ function, and the rotational transmission between the screw shaft and the sub-shaft is achieved by the slight vertical movement of this movable iron core. Switching is performed simply and quickly, and unlike conventional products, a plunger and lever are not required, so the clutch mechanism can be constructed compactly.

[Brief explanation of drawings]

Fig. 1 is a front view showing an outline of the present invention, Fig. 2 is an enlarged side view of the same essential parts, Fig. 3 is a front cross-sectional view of the clutch mechanism of the present invention installed on the screw drive side, and Fig. 4 is a front view showing the outline of the present invention. The figure shows a front cross-sectional view of the same clutch mechanism installed on the subshaft drive side, Fig. 5 is a plan cross-sectional view showing selected parts of the screw shaft and subshaft, and Fig. 6 shows the essentials of the conventional clutch mechanism. FIG. DESCRIPTION OF SYMBOLS 1... Spline shaft, 2... Upper movable iron core, 3... Lower movable iron core, 4... Narrowed part, 5... Annular protrusion, 6... Horizontal plate part, 7 ... Fixed iron core 8.9 ... Annular heavy coil, 10 ... Yoke, 11
...gauging. 12... Clutch holder, 13... Engaging claw of clutch holder, 14... Engaging claw of upper movable iron core, 15... Spiral shaft, 16... Drive wheel, 17
...clutch gear, 18...clutch gear engagement claw, 19...lower movable iron core engagement claw, 20.21.° return spring, 22.subshaft. No.+l

Claims (1)

[Claims] Two movable cores are vertically slidably fitted into a non-magnetic spline shaft that is rotatably supported, and the joint surfaces of the upper and lower movable cores are straddled over each other. A fixed iron core has a constriction part formed at the part where the constriction is formed, and the horizontal plate part of the fixed iron core has a chevron-shaped annular protrusion and a horizontal plate part, which are arranged opposite to each other with a slight gap on the outer periphery of the constricted part. An electromagnetic coil is wound around the yoke, which is fixed to the entire gage that covers the outer periphery of the electromagnetic coil, and a clutch holder is rotatably held on the gage while supporting the lower end of the countershaft on the upper surface of the upper movable iron core. A protruding engaging pawl and a removable engaging pawl are provided on the lower surface, and the upper surface of the lower electromagnetic clutch has a clutch gear fixed to a spline shaft that meshes with a gear fixed to a screw shaft. A protruding engaging pawl and a removable engaging pawl are provided on the top surface, and return springs are interposed between the clutch holder and the upper movable iron core and between the clutch gear and the lower movable iron core. A clutch mechanism for a pine surge machine, characterized in that either the screw shaft or the countershaft is selectively driven by switching the engagement of the upper and lower movable iron cores.