Suspension device for motorcycle
First Claim
1. In a suspension device for motorcycles, wherein a pair of swing arm portions positioned respectively at each side of a rear wheel are pivotally secured at their front ends to rear low-portion of the vehicle frame by a laterally horizontal shaft, said rear wheel being rotatively supported by rear ends of said swing arm portions about a horizontal shaft, a link lever extending frontward and rearward is pivotally secured at intermediate portion thereof to rear upper-portion of said frame by laterally horizontal shaft, one end of the link lever is pivotally secured to upper end of at least one rod member which is pivotally connected, at its lower end, to said swing arm portions and upper end of compression type spring means is pivotally secured to other end of said link lever;
- an improvement wherein lower end of at least one rod member is connected at an intermediate part of the swing arm portions in its longitudinal direction, lower end of said spring means is pivotally connected directly to a position on the swing arm portions between front end of the swing arm portions and the connecting point at which the lower end of said rod member is connected to the swing arm portions and said compression type spring means have a single spring member and a single shock absorber member.
0 Assignments
0 Petitions
Accused Products
Abstract
Disclosed are suspension devices for motorcycles, in which the rear wheel is rotatively supported by rear ends of right and left side swing arms front ends of which are pivotally connected to rear low-portion of the vehicle frame, one end of a link lever pivotally supported at its center portion by rear upper-portion of the frame is pivotally connected to the swing arms via a rod member at each side of the rear wheel and other end of said link lever is pivotally connected to upper end of a spring member, and lower end of said spring member is pivotally connected to a position of each swing arm.
30 Citations
8 Claims
-
1. In a suspension device for motorcycles, wherein a pair of swing arm portions positioned respectively at each side of a rear wheel are pivotally secured at their front ends to rear low-portion of the vehicle frame by a laterally horizontal shaft, said rear wheel being rotatively supported by rear ends of said swing arm portions about a horizontal shaft, a link lever extending frontward and rearward is pivotally secured at intermediate portion thereof to rear upper-portion of said frame by laterally horizontal shaft, one end of the link lever is pivotally secured to upper end of at least one rod member which is pivotally connected, at its lower end, to said swing arm portions and upper end of compression type spring means is pivotally secured to other end of said link lever;
- an improvement wherein lower end of at least one rod member is connected at an intermediate part of the swing arm portions in its longitudinal direction, lower end of said spring means is pivotally connected directly to a position on the swing arm portions between front end of the swing arm portions and the connecting point at which the lower end of said rod member is connected to the swing arm portions and said compression type spring means have a single spring member and a single shock absorber member.
- View Dependent Claims (2, 3, 4, 6, 7)
-
5. In a suspension device for motorcycles, wherein a pair of swing arm portions positioned respectively at each side of a rear wheel are pivotally secured at their front ends to rear low-portion of the vehicle frame by a laterally horizontal shaft, said rear wheel being rotatively supported by rear ends of said swing arm portions about a horizontal shaft, a link lever extending frontward and rearward is pivotally secured at intermediate portion thereof to rear upper-portion of said frame by laterally horizontal shaft, one end of the link lever is pivotally secured to upper end of at least one rod member which is pivotally connected, at its lower end, to said swing arm portions, and upper end of compression type spring means is pivotally secured to other end of said link lever;
- an improvement wherein lower end of at least one rod member is connected at an intermediate part of the swing arm portions in its longitudinal direction, the lower end of the rod member and the lower end of the spring means are pivotally connected to same position or to adjacent positions of the swing arm portions in its longitudinal direction and said compression type spring means have a single spring member and a single shock absorber member.
- View Dependent Claims (8)
Specification