US 10,703,431 B2Granted

Tightening and adjusting assembly for steering system of a bicycle

AssigneesTeddy Formosa Co., Ltd., Bear Corporation

InventorGeorge French

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Abstract

The invention relates to a tightening and adjusting assembly for a steering system of a bicycle. The steering system generally includes a head tube, a steering tube rotatably mounted within the head tube by means of upper and lower headsets, and a handlebar stem tube mounted around the steering tube. The tightening and adjusting assembly has a preload member, an anchoring member and a tightening and adjusting set. The preload member is engaged with a top end of the handlebar stem tube. The anchoring member is abutted against a bottom end of the steering tube. The tightening and adjusting set is disposed in the interior of the steering tube and between the preload member and the anchoring member to draw the preload and anchoring members together and thus preload the upper and lower headsets of the steering system.

Claims9

Dependent claims

A tightening and adjusting assembly for a steering system of a bicycle, said steering system including a steering tube, a head tube, a handlebar stem tube, an upper headset and a lower headset, said steering tube being rotatably mounted within said head tube by means of said upper headset and said lower headset, said handlebar stem tube being mounted around said steering tube;

said tightening and adjusting assembly comprising:
a preload member engaged with a top end of said handlebar stem tube;
an anchoring member abutted against a bottom end of the steering tube;
and
a tightening and adjusting set disposed in the interior of the steering tube and between said preload member and said anchoring member to draw said preload and anchoring members together and thus preload said upper and lower headsets,
wherein said tightening and adjusting set comprises a suspending device, two straight bars and a tightening bolt;
said suspending device having a threaded hole and disposed at the interior of the steering tube;
each of said straight bars axially passing through said steering tube and having a first end connected with the preload member and a second end connected with said suspending device;
said tightening bolt running through said anchoring member from the outside thereof and threadedly engaging with said threaded hole of said suspending device;
whereby when said tightening bolt is tightened, a pull-down force will be applied to said preload member via said two straight bars to preload said upper headset and said lower headset.

7 more elements

Dependencies are inferred from the claim text.