|Publication number||USRE43501 E1|
|Application number||US 11/366,984|
|Publication date||Jul 10, 2012|
|Priority date||Jun 8, 2001|
|Also published as||CN1390741A, CN1807180A, CN1807180B, CN100387485C, DE60200771D1, DE60200771T2, EP1264765A1, EP1264765B1, US6698567, US20030019712|
|Publication number||11366984, 366984, US RE43501 E1, US RE43501E1, US-E1-RE43501, USRE43501 E1, USRE43501E1|
|Inventors||Giuseppe Dal Pra′|
|Original Assignee||Campagnolo S.R.L.|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (29), Non-Patent Citations (4), Referenced by (4), Classifications (20), Legal Events (1)|
|External Links: USPTO, USPTO Assignment, Espacenet|
The present invention relates to an electric control device for a motor-driven derailleur for bicycles.
More precisely, the invention relates to a control device of the type comprising:
A control device of the type specified above is known from the U.S. Pat. No. 5,470,277 by the same Applicant, which describes an electric control device provided with two switches positioned in a supporting body fixed to the handlebar of a bicycle. A first switch is operated by a gear change lever positioned immediately behind the brake control lever and a second switch is operated by a push button positioned on a side wall of the supporting body. The two electric switches may be used to operate in opposite directions an electric motor associated with a derailleur for bicycles. Operation of the derailleur motor in a first direction shifts the chain in a first direction, for example towards higher speed gears and operation in the opposite direction shifts the chain in the opposite direction, for example towards lower speed gears.
The document U.S. Pat. No. 6,015,036 describes an electric control device for a bicycle including a gear change switch supported by the brake lever. A second gear change switch may be positioned near the brake lever. This solution is less advantageous than the one in which both switches are positioned on the supporting body, as it is necessary to take an electric connection to the brake lever which pivots in relation to the supporting body.
The object of the present invention is to provide an electric control device of an improved type which is ergonomic, of simple construction and more functional than prior art devices.
According to the present invention, this object is attained by a control device with the characteristics contained in claim 1.
The present invention shall now be described in detail with reference to the accompanying drawings, provided purely as a non-limiting example, in which:
With reference to
The control device 10 comprises a supporting body 12 provided with means of conventional type for fixing it to a bicycle handlebar 14. The control device 10 comprises a brake control lever 16 hinged to the supporting body 12 by means of a pivot pin 18. One end 20 of a brake control cable 22 is fixed in a conventional manner to a top portion of the brake control lever 16. As can be seen in
The supporting body 12 carries a pair of electric switches to control gear change, indicated with 24 and 26 in
The first switch 24 is provided for operating an electric motor for gear change (not shown) in a first direction for example to shift the chain towards higher speed gears (or upshifting). The second switch 26 is provided for operating the same gear change motor in the opposite direction, for example to shift the chain towards lower speed gears (or downshifting). The control device 10 may be used irrespectively to control the front derailleur or the rear derailleur of a bicycle. Therefore, in the control device positioned on the right side of the handlebar of the bicycle (normally used to control the rear derailleur) the switch 24 controls shift towards lower speed gears (that is towards gears with a larger number of teeth) and the switch 26 controls shift towards higher speed gears (gears with a smaller number of teeth). On the contrary, in the control device positioned on the left side of the handlebar, usually destined to control the front derailleur, the situation is reversed so that the switch 24 controls shift towards higher speed gears (towards a sprocket wheel with a larger number of teeth) and the switch 26 controls shift towards lower speed gears (towards a sprocket wheel with a smaller number of teeth).
In the embodiment according to
The control device 10 comprises a gear change lever (or control lever) 38 connected in a pivoting manner to the supporting body 12 and positioned immediately behind the brake control lever 16. The lever 38 is composed of two separate parts hinged together an upper part 40 hinged to the supporting body 12 around a first axis 42 and a lower part 44 hinged to the upper part 40 around a second axis 46. The two pivotal axes 42, 46 are orthogonal or substantially orthogonal in relation to each other. In the embodiment shown in the figures, the first axis 42 extends along a substantially orthogonal direction in relation to the pivotal axis 18 of the brake control lever 16 and, consequently, the second pivotal axis 46 is parallel or substantially parallel in relation to the pivotal axis 18 of the brake control lever 16. Alternatively, this layout could be inverted so that the upper part 40 of the lever 38 is hinged to the supporting body 12 around an axis parallel or substantially parallel to the pivotal axis of the brake control lever while the lower part 44 of the lever 38 is hinged to the upper part 40 around an axis orthogonal to the pivotal axis of the brake control lever.
In the embodiment shown in
As can be seen by comparing
In the variant shown in
The gear change lever 38 may be associated with a check device that limits the pivoting stroke of the lever 38, to avoid damages to the switch 24 in the case in which the lever 38 is pushed against the switch with excessive force. This check device may be produced as described in the Italian patent application no. TO2000A000540 by the same Applicant.
The described embodiments perform the upshifting and the downshifting by means of two levers (the control lever 38 and the push button lever 80). In accordance with a further aspect of the present invention, both said functions can be performed by a single lever.
As shown in
The control lever 38 can operate both the switches 24 and 26 also in the embodiments in accordance with
As a further alternative of the present invention, as schematically indicated in
Naturally, without prejudice to the principle of the invention, the constructional details and embodiments may vary widely in relation to what is described and illustrated herein purely as an example, without however departing from the scope of the present invention as defined in the accompanying claims.
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|US4071892 *||Apr 20, 1976||Jan 31, 1978||Claude Genzling||Bicycle and information-producing assembly carried thereby|
|US4143557 *||Apr 18, 1977||Mar 13, 1979||Sanyo Electric Co., Ltd||Control system for use in a multiple speed transmission system|
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|JP2530705A||Title not available|
|JP2000006879A||Title not available|
|JP2000011812A||Title not available|
|JP2000057898A||Title not available|
|JPH0139275Y2||Title not available|
|JPH0597088A||Title not available|
|JPH0747987A||Title not available|
|JPH07101376A||Title not available|
|JPH10230888A||Title not available|
|JPH10316073A||Title not available|
|1||English language abstract of JP 7101376(A).|
|2||English translation of JP Office Action dated Jul. 21, 2009-JP Appln. No. 2002-167658.|
|3||English translation of JP Office Action dated Jul. 21, 2009—JP Appln. No. 2002-167658.|
|4||*||Translation of JP 1-39275 Y2, Aoki et al., Jun. 1985.|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US8485060 *||May 26, 2011||Jul 16, 2013||Shimano Inc.||Bicycle shift operating device|
|US8746106 *||Mar 8, 2012||Jun 10, 2014||Shimano Inc.||Bicycle operating device|
|US20120297912 *||Nov 29, 2012||Shimano Inc.||Bicycle shift operating device|
|US20130233112 *||Mar 8, 2012||Sep 12, 2013||Shimano Inc.||Bicycle operating device|
|U.S. Classification||192/217, 74/489, 192/226, 74/502.2|
|International Classification||B62M25/04, F16K47/02, B60K20/02, B62L3/02, B62K23/06, B62M25/08, F16K11/078, B62K11/14, B62M25/00, F16K25/00|
|Cooperative Classification||Y10T74/20287, B62M25/08, Y10T74/20438, B62M25/04|
|European Classification||B62M25/08, B62M25/04|