Pad for leaf spring

Details Pad for leaf spring Pad for leaf spring

B - Operations, Transporting

60

G

B60G 11/113 (2006.01) F16F 1/20 (2006.01) B60G 5/03 (2006.01) B60G 11/40 (2006.01)

Patent

CA 2729332

A curved portion 123, which has a curved cross section, is formed at the recess 121 of the pad 110. The curved portion 123 has a contact portion 123A which contacts the tension surface of the leaf spring 12, which is disposed so as to face the curved portion 123, in an initial condition. The curved portion 123 has a thickness which is reduced from the contact portion 123A to an end portion of the curved portion 123, thereby being spaced from the tension surface of the leaf spring 12. In the pad 110, the height of the curved portion 123 of the recess 121 is set such that contact of the tension surface of the leaf spring 12 and the corner portion of the end portion of the curved portion 123 can be avoided when the stroke length of the end portion of the leaf spring 12 is at maximum. Thus, the tension surface of the leaf spring 12 is not worn by the corner portion of the end portion of the curved portion 123. As a result, breakage of the leaf spring, which may be caused by wear, can be prevented.

Selon l'invention, une section de surface incurvée (123) ayant une section transversale en forme de surface incurvée est formée dans une cavité (121) d'une garniture (110). La section de surface incurvée (123) a une section de contact (123A) qui est, dans un état initial d'un ressort à lames, en contact avec la surface de tension du ressort à lames qui est située en opposition à la section de contact (123A). L'épaisseur de la section de surface incurvée (123) diminue de la section de contact (123A) vers les extrémités de la section de surface incurvée (123), et ceci sépare les extrémités de la surface de tension du ressort à lames. Dans la garniture (110), la section de surface incurvée (123) dans la cavité (121) est configurée à une hauteur qui évite un contact entre la surface de tension et les coins des extrémités de la section de surface incurvée (123) lorsqu'une extrémité du ressort à lames est à une position de course maximale. La surface de tension du ressort à lames ne s'use pas par contact de celle-ci avec les extrémités de la section de surface incurvée (123). Ainsi, le ressort à lames est empêché de se rompre en raison de l'usure.

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