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US 7,255,359 B2Granted
Bicycle
OwnerAndreas Felsl, Stephan Albrechtinventors
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OwnerAndreas Felsl, Stephan Albrechtinventors
Estimating the term…
The invention relates to a bicycle adjusting device, in particular an adjusting device for adjusting the height of the front wheel suspension, the rear wheel suspension, the saddle or of the steering mechanism of a bicycle, e.g. of a mountain bike, a bicycle with at least one bicycle adjustment device, as well as a bicycle-steering head bearing system, whereby the adjustment has at least one double-acting piston-cylinder assembly with a first cylinder space (14a, 34a) and a second cylinder space (15a,35a) in each case, and whereby the two cylinder spaces of the two adjustment devices are interconnectable by means of a fluid duct fitted for that purpose.
A bicycle steering head bearing system (5), to which at least a fork leg (9a, 9b) or a steering assembly (7) or handlebars may be attached, whereby the bicycle steering head bearing system (5) has adjustment means whereby the location of the handlebars or of the steering assembly (7) or parts (24) of the steering assembly (7) may be adjusted forwards or backwards in relation to the bicycle steering head bearing system (5), whereby the clamping element (24) may be tightened by means of a clamping mechanism, of which the longitudinal axis runs between the axis around which the steering assembly (7) or the parts (24) of the steering assembly (7) can be turned in relation to the bicycle steering head bearing system (5) and the axis around which the handelbars or parts of the handlebars can be turned in relation to the steering assembly (7).
A bicycle steering head bearing system (5), to which at least a fork leg (9a, 9b) or a steering assembly (7) or handlebars may be attached, the bicycle steering head bearing system (5) comprising:
A bicycle steering head bearing system (5), to which at least a fork leg (9a, 9b) or a steering assembly (7) or handlebars may be attached, the bicycle steering head bearing system (5) comprising:
Dependencies are inferred from the claim text.
From the US filing history. Foreign family members aren’t listed.
Saddles resiliently mounted on the frame; Equipment therefor, e.g. springs: saddles capable of parallel motion up and down
Frame parts shaped to receive other cycle parts or accessories: for attaching saddle pillars, e.g. adjustable during ride
Steering devices: bearings specially adapted for steering heads
Steering devices: connections between forks and handlebars or handlebar stems
Term ended 28 Jun 2024 (estimated)
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The present invention relates to a bicycle adjusting device, in particular a device for adjusting the height of the front wheel suspension, the rear wheel suspension, the saddle or of the steering mechanism of a bicycle, e.g. of a mountain bike or a bicycle with at least one bicycle adjustment device, as well as a bicycle steering head bearing system.
With conventional bicycles the height of the front wheel suspension, the rear wheel suspension, the saddle or the steering mechanism are not adjustable at all or only adjustable with difficulty.
The invention is aimed at providing a novel bicycle adjustment device and/or a novel bicycle, as well as a novel bicycle steering head bearing system.
Below, the invention is explained in more detail by means of further embodiments and illustrations. The illustrations show.
FIG. 1 an adjusting device according to a first embodiment example of the invention in longitudinal section;
FIG. 2a an adjusting device according to a second embodiment example of the invention in longitudinal section;
In FIG. 1 a device for adjusting the height of the front wheel suspension of a bicycle according to an embodiment example of the present invention is shown. A pneumatic cylinder 30a is attached at its bottom end to a guide tube 37a by means of a threaded connection. A tube 37b with a piston rod 32a attached to it, is fitted to a steering unit 7a, which consists of handlebars, steering tube and (fork) yoke. A piston 31a that is sliding fit in the pneumatic cylinder 30a is fitted to the bottom end of the piston rod 32a. The tube 37b and the piston rod 32a are longitudinally adjustable in relation to the guide tube 37a and the pneumatic cylinder 30a, i.e. in the direction of the arrow A.
The first cylinder space 34a, i.e. the “plus chamber”, is formed by the pneumatic cylinder 30a. The second cylinder space 35a, i.e. the “minus chamber”, is an annular cylinder space, formed by the pneumatic cylinder 30a, the piston rod 32a and the piston 31a. The bottom outside area of the piston 31a that delimits the first cylinder space 34a at the top is larger than the annular top outside area of the piston 31a that delimits the second cylinder space 35a at the bottom.
A connecting hole, which can be opened or shut by means of a valve, has been provided in the piston 31a, which connects the first cylinder space 34a with the second cylinder space 35a. The valve is connected to an actuator 85a, which is raised to the level of the steering unit 7a by the piston 31a and/or the piston rod 32a. At the level of the steering unit and/or handlebars the actuator 85a has an actuator element 86a. When it is actuated, the valve opens and/or shuts.