SU919928A1 - Bicycle handlebar - Google Patents

Description

(54) BIKE BAR

one ,

FIELD OF THE INVENTION The invention relates to bicycle building, in particular, to a bicycle handlebar.

Known bicycle handlebars, in which the removal of the rudder is made in one piece with the rod of the handlebars in the form of a radial limb of the latter with a flattened end, curved according to the radius of the pipe of the rudder 1.

However, the presence of holes in the body of the limb weakens the cross-section of the extension.

Also known is the wheel of a bicycle, which contains an overhang made in one piece with the stem of the steering wheel, clamping head, steering tube, fastening element and insert.

Inside the tube extension, a clamping insert is freely located, having a supporting rotary part at one end and a radius surface at the other 2.;

However, such an implementation of the insert, its support on the coil tube and on the inside, the surface of the blade in the clamped state does not ensure the solidity of the connection, and the rigidity of the tube of the coil tube provides only the upper part of the blade, which significantly reduces the strength of the structure.

The purpose of the invention is to increase the strength and operational reliability of the rolls.

This goal is achieved by the fact that the insert is cylindrical in shape with a groove for orienting it inside the stem and is rigidly fixed relative to it.

FIG. 1 shows the steering wheel, a general view; in fig. 2 shows a section BB in FIG. one; in fig. 3 - sectional insert.

The wheel of a bicycle consists of carrying out 1 wheel, made in one piece with the rod 2 of the wheel in the form of a radius limb with a 10 flattened end 3, forming a clamping head 4, covering the pipe 5 of the roll. At the flattened end there is a hole 6 under the fastening element 7. Inside the takeaway 1 there is a cylindrical insert 8 with a threaded through hole 9 and a step 10 for orienting the insert relative to the opening 11 while fixing it inside the takeoff by welding with electric rivet 12.

The fixing of the roll pipe 5 inside the clamping head 4 is carried out as a result of moving the flattened end 3 to takeaway 1 when screwing the fixing element 7 into the threaded hole 9 of the fixed insert 8.

Claims (1)

Claim A bicycle handlebar comprising a take-out integral with the handlebar shaft, a clamping head, a handlebar tube, a fastening element and an insert, characterized in that, in order to increase the ruggedness and operational reliability of the handlebar, the insert is made of a cylindrical shape with a groove for orienting it inside removal and rigidly fixed relative to it.