Hidden-type shock absorbing bicycle frame
AssigneeAstro Tech Co., Ltd.
InventorJia-Hua Lyu
Life of this patent
Estimating the term…
Abstract
A hidden-type shock absorbing bicycle frame has a front vehicle frame, a transmission assembly, a rear vehicle frame, and a damper. The front vehicle frame has a seat tube having two assembly plates. The assembly plate has an upper pivot hole and a lower pivot hole. An assembly space is formed between the assembly plates. The transmission assembly is pivotally connected to the upper pivot holes and has two front arms located in the assembly space and two rear arms located at two sides of the seat tube and extending backwardly. The rear vehicle frame is pivotally connected with the rear arms and is pivotally connected with the seat tube. The damper hidden inside the assembly space has a top end pivotally connected with the front arms and a bottom end pivotally connected to the lower pivot holes.
Claims12
A hidden-type shock absorbing bicycle frame comprising:
- a front vehicle frame comprising
- a seat tube substantially extending uprightly and having
- a lower end;
- a seatpost installation hole formed on an upper section of the seat tube;
- a pair of assembly plates, each one of the pair of assembly plates having an upper pivot hole and a lower pivot hole;
- and
- an assembly space formed between the pair of the assembly plates and being substantially enclosed;
- a transmission assembly pivotally connected to the upper pivot holes of the pair of assembly plates of the seat tube and comprising
- a pair of front arms located in the assembly space;
- and
- a pair of rear arms, each one of the pair of rear arms located at a respective one of two sides of the seat tube and extending backwardly;
- a rear vehicle frame comprising
- a pair of seat stays, each one of the pair of seat stays having a front end pivotally connected with a respective one of the pair of rear arms of the transmission assembly;
- a pair of chain stays, each one of the pair of chain stays having a front end pivotally connected with the lower end of the seat tube;
- and
- a pair of dropouts, each one of the pair of dropouts fixed to a rear end of a respective one of the pair of seat stays and a rear end of a respective one of the pair of chain stays;
- and
- a damper hidden inside the assembly space of the seat tube in a substantially upright configuration, and having
- a top end pivotally connected with the pair of front arms of the transmission assembly;
- and
- a bottom end pivotally connected to the lower pivot holes of the pair of assembly plates of the seat tube;
- wherein the seat tube comprises
- an assembly base substantially extending uprightly and having said pair of assembly plates on two sides of the assembly base and a back plate one-piece connected with the pair of assembly plates;
- a post tube substantially extending uprightly, fixed with the assembly base, and having an assembly hole communicating with the assembly space;
- and
- a cover configured to shield the assembly hole;
- and
- wherein the assembly base and the post tube are connected by welding a connecting edge of the assembly base and a connecting edge of the post tube.
Dependencies are inferred from the claim text.