JPS5933830Y2 - rubber liner - Google Patents

Description

[Detailed description of the invention] In this invention, the bottom part 3 of a washer 2 having a vertical cross section with four parts 1 formed therein is made into a blind bottom without making a through hole, and the washer 2 is connected to a rubber plate 4. This relates to a rubber liner which is embedded inside the rubber plate 4, has a recess 5 extending from the surface of the rubber plate 4 to the bottom 3, and has the top bottom 3 exposed on the back side of the rubber plate 4.

The washer 2 is in the shape of an iron cylinder or a rectangular cylinder, and its upper flange portion 7 is disposed in the middle of the rubber plate 4, and the blind bottom portion 3 is exposed on the same plane as the back surface of the rubber plate 4.

The outer periphery 6 of the washer 2 may be formed into a substantially circular or rectangular shape, or may be a groove-shaped washer in the form of a single ring, as shown in FIG.

The rubber plate 4 is a square plate made of wear-resistant rubber, and the washers 2 are embedded in the four corners of the rubber plate 4.

In addition, what is indicated by 8 in the figure is a steel plate that is in contact with the bottom surface of the rubber plate 4 and the bottom surface 3 of the washer 2, and constitutes an inclined surface of a hopper or the like covered by the rubber plate 4.

Therefore, when the upper surface of the steel plate 8 without bolt holes is covered with the rubber plate 4, the bottom of the rubber plate 4 and the bottom 3 of the washer 2 come into contact with the steel plate 8.

In this state, insert the electrode of the spot welding machine into the two recesses 5, 5, press the electrode strongly against the bottom 3 of the washer 2, and conduct a current, the bottom 3 and the steel plate 8 will be welded, and the spot welded part will be welded. 9 is formed, and the four corners of the rubber plate 4 are fixed to the steel plate 8 by sequentially performing the above operations to form a rubber liner.

Conventionally, in the construction of rubber lining, a through hole was drilled at the bottom of a vertical cross-section one-shaped washer in which a rubber plate was buried, and the inner periphery of the through hole and the steel plate were welded using a welding rod. There was a defect in that it was difficult to perform welding work and required labor to manufacture the washer because a through hole was formed in the bottom of the washer.

This proposal was made in view of the above-mentioned defects, and since the proposal was constructed as described above, when constructing the rubber lining on site,
By inserting and pressing spot welding electrodes into the recesses 5 and 1 provided at the four corners of the rubber plate 4, the blind bottom part 3 and the steel plate 8 can be quickly welded 9, without requiring any skill, and improving the efficiency of the rubber lining work. Not only can this be improved, but there is also the advantage that there is no need to drill through holes in the washer 2, making it possible to easily manufacture the rubber liner.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view showing the rubber liner of the present invention, Fig. 2 is a plan view of Fig. 1, Fig. 3 is an overall plan view of the liner,
FIG. 4 is a plan view of another embodiment of the liner, and FIG. 5 is a perspective view of an example of the washer. 1.5...Recessed portion, 2...Vertical section 1f-shaped washer, 4...Rubber plate, 6...Outer periphery.

Claims (3)

[Scope of utility model registration request] (1) The bottom part 3 of a longitudinal section 1-shaped washer 2 formed with four parts 1 formed in the center is made into a blind bottom without making a through hole, and the washer 2 is buried inside the rubber plate 4, A rubber liner is provided with a recess 5 extending from the surface of the rubber plate 4 to the bottom 3, and the bottom 3 is exposed on the back side of the rubber plate 4. (2) The rubber liner according to claim 1, wherein the outer periphery 6 of the washer 2 is circular. (3) The rubber liner according to claim 1 of the utility model registration claim, wherein the outer periphery 6 of the washer 2 is rectangular.