The purpose of the invention is to provide an axle spring capable of protecting a rubber cylindrical elastic layer from sparks and fires without deteriorating the performance such as the performance in the vibration resistance and the durability of the cylindrical elastic layer. An outer cylinder (2) is disposed. A central member (3) which receives a load transmitted from the outer cylinder (2) is disposed. Cylindrical elastic layers (4a, 4b) in conical trapezoidal shapes are interposed between the outer cylinder (2) and the central member (3). A cylindrical refractory cover (6) is fixed to the outer cylinder (2) and the central member (3). The lower surfaces of the cylindrical elastic layers (4a, 4b) are covered by the refractory cover (6). No influence is exerted on the performance of the axle spring (1). The cylindrical elastic layers (4a, 4b) are protected from sparks, fire and the like.
軸ばね
2019-04-24
Patent
Elektronische Ressource
Japanisch