Height control device for saddle or handlebar of bicycle

Abstract

The present invention relates to a height control device for a saddle or handlebar of a bicycle, which facilitates the control of the height of a saddle or handlebar of a bicycle, and which enables the height-controlled saddle or handlebar to be fixed without rotational movement in the axial direction. A height control device for a saddle or handlebar of a bicycle comprises: a tube guide, of which an end is integrally formed with or connected with the tube of a bicycle and the other end is coupled with a stay clamp; a post, of which an end is fixed to the saddle or handlebar of the bicycle and the other end is inserted into the tube guide so as to slide in the vertical direction; the stay clamp for fixing a clamp which controls the height of the post; and a locking pin for locking or releasing the post. The post has an indented groove formed in the longitudinal direction, and the stay clamp has a protrusion formed in the longitudinal direction at a position corresponding to the indented groove, so that the rotation of the post in the axial direction may be prevented in the tube guide.

Description

technical field [0001] The invention relates to a height adjusting device, in particular to a bicycle seat cushion or steering handle which is easy to adjust the height of a bicycle seat cushion or steering handle and can fix the height-adjusted seat cushion or steering handle so that it will not rotate and move in the axial direction. Height adjustment for the steering handle. Background technique [0002] For ordinary bicycles in the past, the user does not need to adjust the height of the seat cushion or the steering handle at any time when using it, and can be used all the time by setting the height only once. It is designed for the purpose of attaching to the vehicle, so there is no need to adjust the height of the seat cushion or steering handle when it is folded and fixed. [0003] However, small foldable bicycles are used as auxiliary means of transportation connected to other means of transportation such as buses and trains when going to school or work, so it is ne...

AI Technical Summary

Problems solved by technology

[0004] However, the currently known seat cushion height fixing jigs that appear to meet such needs have the problem that the height sometimes decreases due to the rider's weight during driving, and the fixing jigs protrude outside the bicycle frame, affecting the appearance.

[0005] In addition, a general height adjustment device for a seat cushion or a steering handle has a structure in which the seat cushion or the steering handle is easily detached from the bicycle frame, so there may be problems such as theft.

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