Bicycle five-way joint and rear flat fork assembling structure
A rear chainstay and bicycle technology, which is applied in the field of bicycle bottom bracket and rear chainstay assembly structure, can solve the problems affecting the transmission performance and mechanical strength of bicycles, difficult to meet the quality requirements of high-end models, and strict assembly error requirements, etc., so as to achieve easy operation Batch use, precise positioning, and the effect of improving production efficiency
Pending Publication Date: 2018-05-15
无锡川克智能电机有限公司
View PDF9 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] At present, some high-end models adopt gear-driven bicycles with more precise transmission. Gear-driven bicycles require more stringent assembly error requirements. However, in the existing welding process, heat deformation on both the bottom bracket and the rear chainstay is easy to occur. Mechanical size error, which in turn affects the transmission performance and mechanical strength of the bicycle; it is difficult to meet the quality requirements of high-end models with gear transmission, and the welding process is not environmentally friendly
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0017] The present invention will be further described below in conjunction with the accompanying drawings.
[0018] This solution is especially suitable for gear-driven bicycles with more precise transmission. The rear balance fork of a gear-driven bicycle needs more stringent assembly error requirements, so its structural design needs to avoid the impact of heat generated during the welding process on the bottom bracket and rear balance. The deformation produced by the two forks, this program is attached figure 1 The shown installation structure of a bottom bracket and a rear bracket of a bicycle includes a bicycle frame, and the bottom bracket 8 of the bicycle frame has a bottom bracket shaft hole; it also includes a rear bracket, the bottom bracket of which is connected The end is provided with a shaft hole 6, and the bottom bracket shaft hole and the shaft hole 6 are coaxially arranged; the bottom bracket connection end of the rear flat fork is detachably fixed with the b...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a bicycle five-way joint and rear flat fork assembling structure which comprises a bicycle frame and further comprises a rear flat fork. A five-way joint part of the bicycle frame is provided with a five-way joint shaft hole. A shaft hole is formed in the five-way joint connecting end of the rear flat fork, and the five-way joint shaft hole and the shaft hole are coaxiallyformed. The five-way joint connecting end of the rear flat fork and the five-way joint part are detachably and fixedly installed. The rear flat fork comprises a single rear flat fork body or two rearflat fork bodies. By the adoption of the detachable assembling structure, a spigot structure is adopted and matched with screws, so that location is accurate, assembling technology is simpler than welding technology in the implementing process, the situation that heat generated in the welding technological process deforms a five-way joint and the rear flat fork is effectively avoided, and an effective size guarantee is provided for production of a high-end bicycle or a high-accuracy matched gear drive bicycle.
Description
technical field [0001] The invention belongs to the field of bicycles, and in particular relates to an assembly structure of a bicycle bottom bracket and a rear chainstay. Background technique [0002] The bottom bracket of a bicycle refers to the position where the crankset is installed on the frame. The fork is the main supporting component of the rear wheel of the bicycle; in the existing technology, the rear balance fork is often directly connected to the bottom bracket by welding; [0003] At present, some high-end models adopt gear-driven bicycles with more precise transmission. Gear-driven bicycles require more stringent assembly error requirements. However, in the existing welding process, heat deformation on both the bottom bracket and the rear chainstay is easy to occur. The mechanical size error will affect the transmission performance and mechanical strength of the bicycle; it is difficult to meet the quality requirements of high-end models with gear transmissio...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): B62K19/24
CPCB62K19/24
Inventor 赖永长
Owner 无锡川克智能电机有限公司