JPH041945Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention is based on a cushioning foot that is attached to the bottom of a vibration pine surge device for the sole of the foot, in which the footrest is configured to vibrate with a vibration device. It is related to.

(Prior art) As shown in Japanese Utility Model Publication No. 50-3270, a cushioning foot is attached to the bottom of this type of vibration pine surge device for soles of the foot in order to alleviate and absorb the transmission of vibration. It is being

(Problems to be Solved by the Invention) The shock absorbing feet configured to contact the floor surface in a flat manner as disclosed in the above-mentioned publication can be used when the feet are not placed on the vibration pine surge device for the soles of the feet. When the vibration device is operating, the vibration of the vibration device causes the cushioning foot to touch the floor, with the rear side of the foot touching the floor as shown by the solid line in Figure 4. When the front side is on the floor, the front side is lifted off the floor, and when the front side is on the floor, the rear side is lifted off the floor, as shown by the dashed line in the same figure, so such vibrations are repeated. When this happens, there is a problem in that the vibrating pine surge device for the soles of the feet moves due to the influence of the vibrations.

(Means for Solving the Problems) In order to solve the problems of the conventional products, the present invention is based on a cushioning foot having a substantially truncated cone shape and attached to the bottom of a vibration pine surge device for the soles of the feet. The bottom surface is formed into a hollow shape, a hole is bored in the center of the hole, several annular grooves are formed around the outer periphery of the hole, and the outer peripheral edge of an elastic plate having a hemispherical protrusion is formed at the center of the bottom surface. Fitting and fixing into the inner groove of the annular groove, and configuring so that only the hemispherical protrusion is in contact with the floor surface when the foot is not placed on the vibration pine surge device to alleviate vibration; Designed to absorb. Further, in order to improve the effect of damping and absorbing vibrations, an elastic plate having a hemispherical projection is biased toward the hemispherical projection by a spring installed in the hole.

(Function) When the foot is not placed on the footrest 1, the hemispherical protrusion 11 protruding from the center of the lower surface of the elastic plate 10 supports the vibration pine surge device in one point contact with the floor surface. This prevents the vibration pine surge device from moving.

Furthermore, when the foot is placed on the footrest 1, the hemispherical protrusion 11 is retracted into the hole 9, and the peripheral edge of the foot 6 contacts the floor surface to maintain surface contact.

(Embodiment) To explain the drawings showing an embodiment of the present invention, Fig. 1 shows the state in use, and 1 is a footrest, and this footrest 1 is made of rubber or synthetic resin. The motor 4 is attached to the support stand 3 via a cushioning material 2 such as
Vibrations are generated in the footrest 1 through the eccentric rotation transmission mechanism 5, and the vibrations are applied to the soles of the feet placed on the footrest 1, and the vibrations are applied to at least the four corners of the bottom of the support 3. A cushioning foot 6 made of rubber or synthetic resin is attached to the section to absorb and alleviate the transmission of vibrations to the outside.

As described above, the present invention provides a vibration pine surge device in which the footrest 1 is vibrated by a vibrating device.
The bottom surface of the cushioning foot main body 7 made of rubber or synthetic resin is formed into a concave shape 8 and has a hole 9 in the center.
is provided, and several annular grooves 10 are formed on the outer periphery of the hole 9. Reference numeral 11 is an elastic plate made of rubber or synthetic resin having a hemispherical protrusion 12 protruding from the center of its lower surface, and the outer peripheral edge 13 of this elastic plate 11 is fitted into the annular groove 10 inside the annular groove 10. It is fixed. Further, when a spring 14 is installed in the hole 9 to elastically urge the elastic plate 11 downward, the spring cushions and absorbs vibrations when the footrest 1 is not placed on the footrest 1. Since the hemispherical protrusion 12 is always biased toward the floor surface, it is more preferable to prevent the vibration pine surge device from moving due to vibration. When a foot is placed on the footrest 1 of the vibrating pine surge device, the hemispherical protrusion 12 is retracted into the hole 9 due to the load, as shown in FIG. part is in contact with the floor.

(Effect of the invention) As described above, the present invention forms the bottom surface of the shock absorbing leg main body 7 into a hollow shape 8, and forms several annular grooves 10 around the outer periphery of the hole 9 formed in the center thereof. Since the outer peripheral edge 13 of the elastic plate 11 having the hemispherical protrusion 12 protruding from the center of the lower surface is fitted and fixed into the annular groove 10, when the foot is not placed on the footrest 1, Even when the vibration pine surge device is vibrating, the hemispherical protrusion 1 at the center of the lower surface of the elastic plate 11
2 is in one point contact with the floor surface, so even if the vibration pine surge device is vibrating, it will not move due to vibration. In addition, in the case where a spring 14 is installed in the hole 9, the spring 14 plays a role of alleviating and absorbing the vibration transmitted to the buffer foot 6, and is also provided at the center position of the lower surface of the elastic plate 11. Since the hemispherical protrusion 12 is biased toward the floor surface, one-point contact with the floor surface is better. It is very effective in preventing movement of the vibrating pine surge device under

[Brief explanation of the drawing]

Figure 1 is a sectional view showing the vibrating pine surge device for soles of the present invention when it is in use, and Figure 2 is a sectional view of the vibrating pine surge device for soles of the present invention when it is not in use. A cross-sectional view of the cushioning foot, Fig. 3 is a cross-sectional view showing another example, Fig. 4 is a cross-sectional view showing another example.
The figure is an explanatory view showing a state in which the shock-absorbing legs of a conventional vibration pine surge device vibrate and move. 6...Buffer feet, 7...Buffer feet mainly, 8...
Medium concave portion, 9... hole, 10... annular groove, 11...
...Elastic plate, 12...Semispherical projection, 13...Outer peripheral edge, 14...Spring.

Claims (1)

[Claims for Utility Model Registration] (1) The bottom surface of the cushioning foot, which is attached to the bottom of the vibration pine surge device for the soles of the foot, is formed into a hollow shape, and a hole is bored in the center of the bottom surface, Several annular grooves are formed on the outer periphery, and the outer periphery of an elastic plate having a hemispherical protrusion at the center of the lower surface is fitted and fixed into one of the annular grooves, and the elastic plate is placed on the footrest of the vibrating pine surge device. A cushioning foot for a vibration pine surge device for the sole of the foot, characterized in that only the hemispherical protrusion is in contact with the floor surface when the foot is not placed on the foot. (2) The shock-absorbing foot of the vibration pine surge device for the sole of the foot according to claim (1), characterized in that a spring for biasing the hemispherical protrusion downward is installed in the hole in the center of the lower surface of the foot.