Bicycle bottom bracket cup set

Abstract

The invention discloses a bicycle bottom bracket cup set. The bicycle bottom bracket cup set comprises at least one tube body and at least one bearing, wherein the at least one tube body penetrates into a bottom bracket; a through hole and a buffering section are arranged on each tube boey, wherein the through hole is axially through and the buffering section is axially arranged in the bottom bracket; at least one supporting structure and at least one concave part are arranged on the buffering section; the at least one bearing is arranged in the through hole; and the at least one bearing is atleast partially overlapped with the at least one supporting structure in the radial direction and is at least partially overlapped with the at least one concave part, wherein when the buffering section of the at least one tube body is arranged in the bottom bracket, the radial direction of the at least one supporting structure props against the bottom bracket and at least one buffering space is spaced between the at least one concave part and the bottom bracket in the radial direction. The bicycle bottom bracket cup set has the advantages that the structural strength is strong, the bufferingeffect is perfect, the machining cost is lower, the bearing can be prevented from being deformed under an acting force of the tube part and the smooth actuation of a transmission mechanism can be maintained.

Description

technical field [0001] The present invention relates to a headset, in particular to a bicycle bottom bracket headset. Background technique [0002] The headset of a general bicycle can be installed on the vehicle frame, such as a bottom bracket tube to connect the transmission mechanism, and the headset is provided with a bearing for the rotation of the spindle. [0003] Please refer to China Taiwan patent case M415098, the bicycle bottom bracket headset includes a pipe, two rings inside the pipe and two bearings, each ring is provided with an outer ring surface, the outer ring is recessed with a ring groove, The ring groove has two opposite groove wall surfaces; each bearing is arranged within the range extended by the groove wall surfaces. [0004] The bicycle bottom bracket headset of the above-mentioned known technology does not have any supporting structure in the ring groove to support the bearing and the pipe fitting, so the structural strength of the ring groove is ...

AI Technical Summary

Problems solved by technology

However, there is a roundness error in the shape of the plurality of convex ribs corresponding to the outer race, so the size of the plurality of convex ribs must be precisely manufactured, resulting in an increase in processing costs; The outer races are in contact, so the bearing cannot be fastened to the support member, resulting in the bearing not being able to drive smoothly

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