JPH02110501U - - Google Patents

Description

[Brief explanation of drawings]

Fig. 1 is a side view of Embodiment 1, Fig. 2 is a partially cutaway side view of the same, Fig. 3 is a partially cutaway sectional view taken along line AA in Fig. 2, and Fig. 4 is a partially cutaway side view of the same. Figure 5 is an explanatory diagram showing how a rubber ball is compressed, Figure 6 is an explanatory diagram showing how a cylindrical rubber is compressed, and Figure 7 is the relationship between the force applied to the rubber ball and the cylindrical rubber and the amount of deformation. Graphs showing , Figures 8 to 17 are respectively for Example 1.
FIG. 18 is an explanatory diagram showing how the outer ring is displaced in the lateral direction. 19th
The figure is a partially cutaway side view of the second embodiment, and FIG. 20 is a partially cutaway sectional view of the same. FIG. 21 is a partially cutaway side view of Embodiment 3, FIG. 22 is a partially cutaway sectional view of the same, and FIG.
FIG. 3 is a partially cutaway perspective view of the same. FIG. 24 is a partially cutaway side view of the fourth embodiment. FIG. 25 is a partially cutaway side view of the fifth embodiment. 1: hub, 2: strut, 3: spoke, 4: pawl,
5: Outer ring, 6: Auxiliary wheel, 7, 8: Joint, 9:
Shaft, 10: Bearing, 11: Rubber bushing, 12, 1
3: Metal fitting, 14: Rubber ball, 15: Tip, 16:
Tire, 17: Wheel, 18: Mounting bracket, 19
: Container, 20: Rubber ball, 21, 23: Curve, 22
: Cylindrical rubber, 24: Claw, 25: Circular plane part, 2
6: Claw, 27: Cover, 28: Rubber claw, 29:
metal nails.

Claims (1)

[Claims for Utility Model Registration] (1) A plurality of elastic spokes are arranged radially at equal angles around the outer periphery of a hub, and a plurality of claws are provided on the outer periphery in a concentric circle with the hub on the extension line of the spokes. A wheel with an outer ring, both ends of which are rotatably connected to the outer periphery of the hub and the inner periphery of the outer ring. An auxiliary wheel for mounting a rubber tire, characterized by having a mechanism in which a plurality of rubber balls are arranged in series so as to be in contact with each other, and the rubber balls are moderately compressed by the same metal fittings. (2) A rubber bush is inserted between the shaft and the bearing at the joint between both ends of the spoke, the outer periphery of the hub, and the inner periphery of the outer ring, giving the joint a suitable degree of flexibility. The auxiliary wheel for mounting a rubber tire according to claim 1. (3) The shape of the plurality of claws provided on the outer circumference of the outer ring is cylindrical, and a circular flat part with a diameter smaller than the diameter of the cylindrical part is formed at the tip, and the circular flat parts are arranged radially outward. The auxiliary wheel for mounting a rubber tire according to claim 1 or 2, characterized in that: (4) The auxiliary wheel for mounting a rubber tire according to claim 1 or 2, characterized in that the plurality of pawls provided on the outer circumference of the outer ring have a semicircular shape, and the curved surface of the semicylindrical shape is arranged facing outward. (5) The auxiliary wheel for mounting a rubber tire according to any one of claims 1 to 4, characterized in that a wear-resistant hardfacing weld is applied to the tips of a plurality of claws arranged on the outer circumference of the outer ring. (6) The auxiliary wheel for mounting a rubber tire according to any one of claims 1 to 4, characterized in that tips of a plurality of claws arranged on the outer circumference of the outer ring are equipped with tips made of cemented carbide or ceramics. (7) Claim 1 characterized in that a cover that rotates with the wheel is attached to the outside of the rotating surface of the wheel.
The auxiliary wheel for mounting a rubber tire according to any one of to 6.