JP2606227Y2 - Assembly of rubber segment and holding plate - Google Patents

Description

[Detailed description of the invention]

[0001]

[Industrial application fields] The present invention relates to civil engineering machines, agricultural machinery,
The present invention relates to an assembly of a rubber segment and a pressing plate used when a hollow rubber segment is mounted on a tire rim of a non-punctured wheel used as a vehicle tire such as an off-road vehicle.

[0002]

2. Description of the Related Art Conventionally, a wheel having a hollow rubber segment 101 attached to a tire rim 102 has been used as a wheel 100 without puncturing as shown in FIG. The said mounting bolt 103, this time pressing plate 105 using the nut 104 so that the rubber segments 101 and placed inside the rubber segment 101 is firmly fixed.

FIGS. 5A and 5B are views for explaining the pressing plate 105. FIG. 5A is a perspective view, and FIG. 5B is a sectional view taken along line XX of FIG.
As shown in the figure, a metal holding plate 105 made of iron, stainless steel, or the like has a configuration in which both side edges 106a and 106b in the longitudinal direction are simply curved upward in a semicircular shape, and a flat portion 107 has a bolt 103 Bolt hole 108 for insertion
Have been.

[0004]

[Problem to be Solved by the Invention] The above rubber segment 1
When the wheel 100 equipped with the tire 01 is running, a lateral force F ₁ and a vertical force F ₂ are applied as shown in FIG. 6, so that the rubber segment 101 is deformed and the pressing plate 10
The inner wall of the rubber segment 101 is in contact with the side edge 106a of the fifth. For this reason, there is a problem that the rubber of the contact portion S is damaged by the side edges 106a and 106b of the pressing plate 105, and as a result, the rubber segment 101 is damaged.

In order to solve the above-mentioned problems, the present invention provides an assembly of a rubber segment and a holding plate for improving the durability of the rubber segment without damaging the inner wall of the rubber segment when the rubber segment is deformed. Is to provide.

[0006]

According to the present invention, a hollow rubber segment is attached to a tire rim using a holding plate, and the holding plate is formed with tear-drop-like convex portions on both longitudinal edges. The projection is formed so as to protrude in the height direction toward the grounding surface side in the rubber segment hollow, and the height of the protruding portion is approximately 1/3 to the height of the rubber segment hollow inner wall. An assembly of a rubber segment and a holding plate, wherein the assembly has a height of 2/3.

In the production of the above-mentioned holding plate, the center of the pipe tube is pressed, and the holding plate is formed so that the portion becomes a flat portion having a two-layer structure.

[0008]

[Function] Both sides of the holding plate in the longitudinal direction are formed into teardrop-shaped projections.
And forming the convex portion on the grounding surface inside the rubber segment hollow.
And projecting in the height direction toward the
By making the height of the segment hollow inner wall approximately 1/3 to 2/3 , the contact between each side edge of the pressing plate due to deformation of the rubber segment and the rubber segment hollow inner wall is always in surface contact. This prevents damage to the hollow inner wall of the rubber segment and improves the durability of the rubber segment.

Further, when the pressing plate has a two-layered flat portion, the overall strength of the pressing plate is increased and the durability is further improved, and the pressing plate presses the center of the pipe tube. Easy to manufacture because it is manufactured.

[0010]

1A and 1B show an embodiment of an assembly of a rubber segment and a holding plate according to the present invention.
Is a perspective view and B is a side view. The pressing plate 10 has both longitudinal edges 11a and 11b formed in a tear-drop-shaped convex portion 12, and the convex portion is directed upward to the ground contact side in the inside of the rubber segment hollow curved in a tear-drop shape. And protruding in the direction, and each edge 13a of both side edges 11a and 11b,
13b is welded to the flat portion 14 inside the center of the plate surface.
At this time, welding each of the edges 13a and 13b to the flat portion inside the center increases the strength of the convex portion 12, and the convex portion is not deformed by the load applied to the rubber segment. A bolt hole 15 is formed in the flat portion 14.

2A and 2B show another embodiment, in which A is a perspective view and B is a side view. As in the first embodiment, the holding plate 20 has two longitudinal edges 21a and 21b.
A teardrop-shaped projection 22 is formed, which is upwardly teardrop-shaped.
Toward the grounding surface inside the curved rubber segment hollow
It is configured to protrude in the opposite direction, and has a bolt hole 25 formed in the plane portion 24. The manufacture of this embodiment is performed by mechanically pressing the center of the pipe tube. The central plane has a two-layer structure as shown. In this case, the production is easy and the overall strength of the holding plate is improved. Incidentally, the two layers of the central plane portion may be welded up and down.

FIGS. 3A, 3B and 3C show longitudinal sides of the holding plate.
The edge is formed in a teardrop-shaped projection, and the projection is formed in the rubber segment.
Protruding in the height direction toward the tread side in the sky interior,
7A and 7B are views for explaining the operation of the holding plate 20 having different heights of the projecting portions, where A is a side view of the state where the holding plate 20 is installed on the rubber segment 30, and B is the height of the projecting portion of the projection 22. L ₂
A side view of a state in which load is applied to the rubber segments case of the approximately 1/3 of the rubber segment inner wall height L _1, C is approximately the protrusion height L ₃ of the convex portion 22 of the rubber segment inner wall height L ₁ It is a side view in the case where load was similarly applied to the rubber segment in the case of 2/3. As can be seen in each figure, the contact portion S of the inner wall of the rubber segment comes into surface contact without biting into each convex portion 22, and local deformation of the inner wall rubber is eliminated.

According to various experimental examples, the local and overall deformation of the rubber segment should be such that the height of the protruding portion of the convex portion of the pressing plate is in the range of about 1/3 to 2/3 of the inner wall height of the rubber segment. and than desirable from the top to prevent, projecting convex portion
When the height of the portion is smaller than 1/3 of the height of the inner wall of the rubber segment, the rubber on the inner wall bends along the convex portion to the vicinity of the flat portion, so that the deformation of the rubber becomes large and the rubber segment is damaged early. Further, when the height of the projecting portion of the convex portion is larger than 2/3 of the height of the inner wall of the rubber segment, the convex portion occupies most of the hollow portion inside the rubber segment, and the vertical force from the ground contact surface is small. Since the elastic force of the rubber segments is hindered by the convex portions, the cushioning properties are inferior and the riding comfort is poor. In addition, making the convex portion tear-drop-shaped is excellent in that it can make gentle and wide surface contact with the inner wall surface that is deformed by applying a load to the COMSEG MENOT, and also increases the strength of the convex portion. Becomes

[0014]

[Effect of the Invention] The present invention is configured as described above, and the green in the longitudinal direction of the holding plate is formed in a teardrop-shaped convex portion.
The convex portion faces the grounding surface side inside the rubber segment hollow.
The height of the protruding part is set by rubber seg
The height of the inner wall of the rubber segment is approximately 1/3 to 2/3 , so that the contact with the inner wall of the rubber segment becomes surface contact, and the rubber at the contact surface is effectively prevented from being damaged. Thus, the durability of the rubber segment can be significantly improved.

Further, by pressing the center inner flat portion of the holding plate into the two layers by pressing the center of the pipe tube, the manufacturing is easy, and the elasticity and strength of the holding plate itself and the convex portion are increased. The durability of the plate can be significantly improved.

[Brief description of the drawings]

1 shows an embodiment of the present invention, wherein A is a perspective view and B is a side view.

FIG. 2 shows another embodiment of the present invention, wherein A is a perspective view and B is a side view.

FIG. 3 is a state diagram for explaining the operation of the holding plate.

FIG. 4 is a perspective view of a conventional wheel.

FIG. 5 shows a conventional example, wherein A is a perspective view and B is X of A.
-It is an X-ray sectional view.

FIG. 6 is a side view for explaining the operation of the conventional example.

[Explanation of symbols]

10, 20, 105
Holding plate 11a, 11b, 21a, 21b, 106a, 106b
Side edges 12,22
Protrusions 13a, 13b
Edge 14, 24, 107
Flat part 15, 25, 108
Bolt holes 30, 101
Rubber segment 100
Wheel 102
Tire rim 103
Bolt 104
nut

Claims (2)

(57) [Scope of request for utility model registration] 1. A hollow rubber segment is attached to a tire rim by using a pressing plate, and the pressing plate is formed with tear-shaped convex portions on both longitudinal edges thereof, and the convex portion is formed by a rubber segment. The hollow portion is formed so as to protrude in the height direction toward the grounding surface, and the height of the protruding portion is set to be approximately 1/3 to 2/3 of the height of the rubber segment hollow inner wall. An assembly of a rubber segment and a holding plate, characterized in that: 2. An assembly of a rubber segment and a press plate according to claim 1, wherein a press plate is formed so as to press the center of the pipe tube so that the portion becomes a flat portion of a two-layer structure. .