Nhk Spring Co., Ltd.

Hino Motors, Ltd.

Naoshi Sato

Mitsuru Enomoto

Nobuhiro Shibuya

Junichi Yano

Noritoshi Sakaide

Yoshiharu Sugawara

A silencer for a leaf spring assembly. The silencer is disposed between end portions of leaf springs. The silencer has a two-layer structure which has a fixing layer and a sliding layer which are integrally formed. The fixing layer has a projection portion, and the projection portion has an engagement portion at a leading end portion thereof. The fixing layer, which is fixed at the fixing side leaf spring, has a tensile strength higher than the sliding layer. The sliding layer, which abuts the sliding side leaf spring, has a hardness lower than the fixing layer. The projection portion of the fixing layer can have sufficient strength to resist the shearing force. In the sliding layer, undesirable noise generation is difficult, and even when a load transmission portion of an end portion of the sliding side leaf spring partially abuts the sliding layer, undesirable noise generation can be prevented.

Silencer for a multi-leaf spring

A suspension device for suspension of an axleby an intermediate portion of a single leaf springhas first restriction means which restricts, upon breakage of the leaf springat a position behind the intermediate portion of the spring, the rear portion of the leaf springfrom tilting downwardly relative to a shackle, and a second restriction means (retainer pawl) for restriction of the shacklefrom pivotally moving backward beyond a predetermined angle. The first restriction means is constituted by a bushwith projectionswhich is arranged at a connection between the shackleand the rear end of the leaf springfor integral rotation with the rear end of the leaf springand engages with the shackleat a predetermined rotary position.

Suspension device

Growing community of inventors

Kanagawa, Japan

Naoshi Sato