ES2403001A2 - Actuating system for e.g. brake lever utilized for operating braking element of bicycle, has threaded stopper screwed into cog and slid in receiving portion such that tension of cable is adjusted by rotating cog - Google PatentsActuating system for e.g. brake lever utilized for operating braking element of bicycle, has threaded stopper screwed into cog and slid in receiving portion such that tension of cable is adjusted by rotating cog Download PDF
- Publication number
- ES2403001A2 ES2403001A2 ES201230110A ES201230110A ES2403001A2 ES 2403001 A2 ES2403001 A2 ES 2403001A2 ES 201230110 A ES201230110 A ES 201230110A ES 201230110 A ES201230110 A ES 201230110A ES 2403001 A2 ES2403001 A2 ES 2403001A2
- Prior art keywords
- receiving portion
- Prior art date
- 230000000284 resting Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 2
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K23/00—Rider-operated controls specially adapted for cycles, i.e. means for initiating control operations, e.g. levers, grips
- B62K23/02—Rider-operated controls specially adapted for cycles, i.e. means for initiating control operations, e.g. levers, grips hand actuated
The object of the invention is an actuation system and a control device equipped with such a system, for a maneuvering organ of a vehicle, for example a braking or gearshift mechanism.
The invention finds, for example, an application for the control and operation of a braking mechanism of a bicycle or a scooter.
In general, to control a maneuvering organ of a bicycle, for example a braking or gearshift mechanism, an eccentric control device is used attached to the organ to be controlled by a properly installed drive cable.
When exerting a traction, for example by means of a brake lever, on the cable, the braking mechanism is activated, for example, a stirrup that carries a pair of brake shoes that will rub on the wheel. When the brake lever is released, the cable returns to its normal position and the shoes move away from the wheel.
In the same way, when exerting a traction, for example by means of a drive lever or by any other equivalent element, the gearshift mechanism that causes the bicycle chain to deviate so that it changes plate or of pinion.
For a control device of this type, and its drive system, to function effectively, it is necessary that the tension of the resting cable, that is, in the non-operating position of the operating element, be correctly adjusted, in such a way that a tension on the cable implies the effective operation of this maneuvering organ.
This voltage can be adjusted over time. In addition, in the particular case of the braking mechanism with brake shoes mounted on a stirrup, these shoes wear progressively over time.
It is therefore necessary to be able to easily modify the regulation of this voltage to adjust it correctly.
On the other hand, some users may prefer one type of setting more than another. For example, a user may want "dry" braking from the start of the drive path of the drive system. On the contrary, another user may want progressive "soft" braking along the drive path of the drive system. In both cases, the adjustment of the cable tension is not the same.
It is, therefore, also necessary here to be able to easily modify the regulation of this voltage to adjust it correctly according to the user's desire.
Drive systems in which the cable tension can be regulated by means of a nut / locknut type system are common.
In these drive systems, the cable, usually covered, is connected to the maneuvering organ by one of its ends, and is provided at its opposite end with a threaded stop of the cover which is screwed at the same time inside the body of the control device for example a brake lever and inside a adjusting wheel or a nut that rests against the body.
By unscrewing the stop of the lever body cover, the cable is stretched and corrected in this way, for example, the wear of the brake shoes
On the contrary, when the cover stop is screwed onto the lever body, the cable is tensioned, which allows the adjustment to be modified, for example after replacing the used shoes with new shoes.
One of the problems posed by this type of drive system is that the adjustment may be difficult for users to understand and difficult to implement. In fact, in order to be able to screw or unscrew the cover stop, first of all the nut or the adjusting wheel must be slightly unscrewed. Then, once the stop screwed or unscrewed conveniently, the nut must be tightened again against the lever body.
Another problem posed by this type of device is that, when an adjustment is made to compensate for the wear of the brake shoes, the cover stop protrudes considerably from the body and the nut bolted to the body reveals a part of the thread of the stop the cover.
The invention is therefore intended to solve the problems that have been exposed, among other problems.
The invention thus relates, in accordance with a first aspect, to a drive system of a vehicle operating element, for example a bicycle, the operating device being, for example, a braking or gearshift mechanism. gears, suitable for being controlled by a control device, for example a brake or gearshift lever, comprising a body having a receiving portion.
The drive system comprises a drive cable mounted within a cover, the first end of which is intended to slide into the receiving portion and to be fixed to the control device, and the opposite end of which is intended to be fixed on the operating element.
The system also includes adjustment means designed to regulate the tension of the cable between the operating device and the control device. These adjustment means comprise a threaded stop suitable for serving as a stop at the end of the cable cover during actuation of the drive system.
The adjustment means also comprise a wheel suitable for mounting cooperating around the receiving portion, and the stop is screwed into the adjustment wheel and is suitable for sliding into the receiving portion, so as to allow the Cable tension adjustment by wheel rotation.
Thus, it is enough to turn the wheel, which has the effect of screwing or unscrewing the wheel stop, which causes the stop to move along the axis of the cable, to adjust the tension of this cable.
In addition, once mounted on the control device, for example a brake lever, whatever the setting, no unsightly threaded is seen since the threading of the stop is inside the adjustment wheel.
Likewise, the adjustment wheel may have a grip surface greater than the nut / locknut system of the prior art, so that the adjustment requires less precision and less force.
In a first embodiment, the adjustment wheel has a first end intended to rest on an outer flange of the receiving portion, and has an inner flange intended to rest on the end of the receiving portion.
In this variant, the stop may be provided with a flange suitable for resting on the flange of the adjustment wheel.
Preferably, the adjustment wheel has a second end opposite the first end provided with a passage hole for the cable.
In a second variant, possibly in combination with the previous one, the wheel has a cylindrical or frustoconical outer shape.
In a third variant, possibly in combination with one or more of the above, the outer wall of the adjustment wheel is provided with at least one flat part that facilitates the grip of the wheel by the user.
The invention also relates, according to a second aspect, to a control device, for example a lever or a brake or gearshift lever, of a vehicle, for example a bicycle, for the control of an organ of maneuvering of this vehicle, for example a braking or gearshift mechanism.
The device comprises a drive system like the one presented above.
In a variant, the device comprises a body that receives, by means of a reception portion at the first end of the sliding mounted cable in this reception portion, the adjustment wheel being mounted cooperating around the reception portion, and the threaded stop screwed into the inside of the wheel being slidably mounted inside the receiving portion.
Preferably, the outer wall of the adjustment wheel at the height of its first end is extended without interruptions by the outer wall of the receiving portion of the body.
The invention also relates, according to a third aspect, to a vehicle, for example a bicycle, comprising at least one maneuvering organ, for example a braking or gearshift mechanism, this maneuvering organ being controlled by a control device like the one presented previously.
Other features and advantages of the invention will be shown more clearly and completely with the reading of the description given below of the preferred embodiments, which are given by way of non-exclusive examples and in reference to the following drawings which are attached:
- figure 1: schematically represents an example of a device
control with the drive system according to the invention,
seen in partial section;
- figure 2: schematically represents the device of figure 1
as a whole, with an extension of the system adjustment wheel
Figure 1 represents an example of a control device 1, 7 with the drive system according to the invention, in this case of the command and of the actuation of a braking mechanism of a bicycle.
Typically, the control device comprises a body 1 and a lever 7, integral with the body 1 and intended to start the drive system.
The drive system comprises a cable 2 protected by a cover 10, whose first end 2a protrudes out of the cover 10 and is directly or indirectly connected to the lever 7, so that a user can pull the cable 2 to the act on lever 7.
At the end of the cable 2 opposite the first end 2a, not shown in Figure 1, the cable 2 is fixed to the braking mechanism, so that the traction on the cable 2 drives the braking mechanism.
This first end 2a of the cable 2 is introduced by sliding into a receiving portion 1a of the body 1.
On the other hand, the drive system comprises adjustment means 3, 8 intended to allow adjustment of the tension of the cable 2.
These adjustment means comprise a wheel 3 that cooperates at one 3a of its ends 3a, 3b with and around the end of the receiving portion 1a opposite the end of the integral portion with the body 1.
The end 3a of the adjusting wheel 3 rests on an outer flange 4 of the receiving portion 1a.
This end 3a of the adjusting wheel 3 is provided, on the one hand, with an edge of the annular end that rests on the end of the receiving portion 1a and, on the other hand, with an inner flange 5, slightly behind the axis with respect to the edge of the annular end.
At its end 3b opposite end 3a, the adjustment wheel 3 is provided with a hole for the passage of the cable 2.
The adjustment means 3, 8 of the tension of the cable 2 comprise, on the other hand, a threaded stop of the cover 8, slidably mounted inside the receiving portion 1a and mounted screwed inside the wheel 3.
This stop 8 is suitable for serving as a stop at the end of the cover 10 of the cable 2 during actuation of the drive system.
The cable 2 is integral at its end 2a with this cover stop 8, such that the cable can slide inside the receiving portion 1a and be more or less tense when sliding inside the cover 10 when it is resting against the stop 8.
The stop 8 comprises a flange 9, at its opposite end to the insertion end by screwing into the adjusting wheel 3, which can be supported on the inner flange 5 of the wheel 3 presented in previous paragraphs, such that the stop 8 cannot be screwed inside the wheel 3 beyond the support of the flange 9 of the stop 8 on the flange 5 of the wheel 3.
Thus, when the adjustment wheel 3 is turned, in one direction or the other, around the receiving portion 1a, the stop 8 is screwed or unscrewed inside the wheel 3 while sliding inside the receiving portion 1a, which has the effect of changing the tension setting of the cable 2.
Figure 2 shows more generally the example of a control device with its drive system described above with reference to Figure 1, presented this time without cutting.
As shown in both Figure 1 and Figure 2, in this example, the outer walls of the adjusting wheel 3, at the height of its end 3a, are extending without interruption to the outer walls of the portion of reception 1a of body 1.
As shown in the detail view associated with Figure 1, one or several flat parts 6 extending along the outer surface of the adjusting wheel 3 can be provided from its end 3b, to facilitate the grip of the wheel. 3 by the user.
The outer shape of the adjustment wheel 3 is conical, slightly narrower at its end 3b than at its end 3a. It could also be cylindrical or even otherwise.
However, it is preferred that this form allows both a cooperation with the end of the receiving portion 1a of the body and allows the outer walls of the wheel 3 to be extended without interruptions to the outer walls of this receiving portion 1a .
The whole of the above description is given by way of example and, therefore, does not limit the invention.
In particular, the main application relates to the control and operation of a maneuvering organ, for example a braking mechanism or a gearshift mechanism, for a bicycle.
10 But the invention extends to the actuation and control of any operating device that uses a cable to connect the eccentric control and the operating element, and to exert an action on the operating element from the control device and its system drive.
Similarly, the invention extends to the drive and control 15 of a maneuvering organ not only of a bicycle but of any other vehicle, for example a scooter.
- System according to claim 1, characterized in that the adjusting wheel (3) has a first end (3a) intended to rest on an outer flange (4) of the receiving portion (1a), and has an inner flange (5) intended to rest on the end of said receiving portion (1a).
- System according to claim 2, characterized in that the stop (8) is provided with a flange (9) suitable for resting on an inner flange (5) of the adjusting wheel (3).
- System according to any one of claims 2 and 3, characterized in that the adjusting wheel (3) has a second end (3b) opposite the first end (3a) provided with a hole for the passage of the cable (2) .
- System according to any one of claims 1 to 4, characterized in that the adjustment wheel (3) has a cylindrical or truncated conical outer shape.
- System according to any one of claims 1 to 5, characterized in that the outer wall of the adjustment wheel (3) is provided with at least a flat part (6) that facilitates the grip of the wheel (3) by user part.
- Control device (1, 7), for example a brake (1, 7) or gearshift lever, of a vehicle, for example a bicycle, for the control of a maneuvering organ of said vehicle, for example a braking or gearshift mechanism, characterized in that it comprises a drive system according to any one of the preceding claims.
- Device according to the preceding claim, characterized in that it comprises a body (1) that receives through a receiving portion (1a) to the first end (2a) of the cable (2) slidably mounted within said receiving portion (1a ), the adjustment wheel being mounted cooperating around said receiving portion (1a) and the threaded stop (8)
Priority Applications (2)
|Application Number||Priority Date||Filing Date||Title|
|FR1150776A FR2970937B1 (en)||2011-02-01||2011-02-01||Actuating system and control device provided with such a system for a bicycle maneuvering device|
|Publication Number||Publication Date|
|ES2403001A2 true ES2403001A2 (en)||2013-05-13|
|ES2403001R1 ES2403001R1 (en)||2014-01-27|
|ES2403001B1 ES2403001B1 (en)||2014-11-05|
Family Applications (1)
|Application Number||Title||Priority Date||Filing Date|
|ES201230110A Withdrawn - After Issue ES2403001B1 (en)||2011-02-01||2012-01-27||Operating system and control device equipped with a system of this type, for a bicycle operating body.|
Country Status (4)
|DE (1)||DE102012100804A1 (en)|
|ES (1)||ES2403001B1 (en)|
|FR (1)||FR2970937B1 (en)|
|IT (1)||ITMI20120087A1 (en)|
Family Cites Families (7)
|Publication number||Priority date||Publication date||Assignee||Title|
|JPH0136711Y2 (en) *||1984-05-26||1989-11-07|
|JPH0356474Y2 (en) *||1987-04-03||1991-12-18|
|JPH0449218U (en) *||1990-08-31||1992-04-27|
|JP3133915B2 (en) *||1994-11-18||2001-02-13||株式会社シマノ||Bicycle cable and its outer end cap and adjustment bolt|
|DE19843337A1 (en) *||1998-09-22||2000-03-23||Sram De Gmbh||Cable control adjustment mechanism for bicycle has fewer components than prior art and retains lubricating grease|
|JP2001014047A (en) *||1999-04-30||2001-01-19||Yamaha Motor Co Ltd||Clutch lever adjusting mechanism|
|JP2009083786A (en) *||2007-10-02||2009-04-23||Yamaha Motor Co Ltd||Adjustment mechanism for operation lever and saddle-riding type vehicle|
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