JPS622044Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an electric massage machine that has been slightly improved so that the lever can move smoothly.

Conventionally, the slide cushion is attached directly to the lever without using any member, so it tends to create a gap between it and the lid, and if the gap becomes large, it may cause twisting or deflection and cause inertial movement of the lever. In addition, if the gap is small, unnecessary friction occurs and smooth movement is impossible, which reduces the amount of momentum and causes irregular movement, which causes unpleasant noise and malfunctions.

The present invention was developed in view of the above-mentioned circumstances, and as a result of making slight improvements to the lever part, it was possible to solve all the disadvantages of the conventional products mentioned above at once. To explain what is shown in the figure, 1 is a box-shaped gear box with one side open, and a worm gear 1a and a wheel gear 2 provided with a gear pin or drive shaft 3 are disposed approximately in the center thereof. The gear pin, or drive shaft 3, faces the lever locking opening described later, and a notch 4 is formed on both sides of the gear box.
A bearing portion 5 is formed. Reference numeral 6 designates a lever integrally formed with a lever shaft 7 that transmits reciprocating motion in the axial direction, and has a locking hole 8 approximately in the center for locking the drive shaft 3 and holes on both sides thereof. 6a, and a protrusion 10 formed in the shape of the smooth surface opposite to the shape of the lever 6.
A slide cushion 10 having an arcuate shape is attached via a pressurized leaf spring 9 having an elongated hole 9a extending perpendicularly to the vibration direction and having an arcuate shape. 11
1 is a bearing metal that supports the lever shaft 7 fitted into the bearing portion 5, and 12 is a presser for preventing the bearing metal 11 from falling off. Reference numeral 13 is a plate for closing the opening of the gearbox 1, and a slide cushion attached to a lever slides on the plate 13 via a pressurized plate spring. 14 is a vibrator and is attached to the lever shaft 7.

According to the present invention as described above, since the slide cushion is attached to the lever via the pressurized leaf spring, the pressurized leaf spring constantly acts as an elastic buffer between the lever and the slide cushion. Since the lever always slides with a constant pressing force between the levers, the reciprocating movement of the lever is performed smoothly, and a light and gentle action is obtained.Moreover, the structure is simple and can be manufactured at low cost. This is a highly effective idea in terms of industrial and practical use.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of the main parts of the electric massager of the present invention, and FIG. 2 is an exploded perspective view. In the figure, 6 is a lever, 6a is a hole for inserting a protrusion, 7
is a lever shaft, 9 is a pressurized leaf spring, 9a is a long hole, 10
is a slide cushion, and 10a is a protrusion.

Claims (1)

[Scope of utility model registration request] In an electric massage machine in which a lever shaft having a vibrator at its tip is reciprocated in the axial direction by rotation of a motor, a plate 13 fixed to the electric massage machine slides against a lever integrally formed with the lever shaft. A hole for inserting the protrusion of the slide cushion is provided, and a pressurized leaf spring curved into an arc having a long hole in the direction perpendicular to the vibration direction is inserted between the lever and the slide cushion into the protrusion. An electric massage machine in which the lever is inserted so that the lever can move smoothly.