EP4330125A1 - Schalthebel mit gegenläufigen bowdenzügen - Google Patents
Schalthebel mit gegenläufigen bowdenzügenInfo
- Publication number
- EP4330125A1 EP4330125A1 EP22728042.7A EP22728042A EP4330125A1 EP 4330125 A1 EP4330125 A1 EP 4330125A1 EP 22728042 A EP22728042 A EP 22728042A EP 4330125 A1 EP4330125 A1 EP 4330125A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- actuating lever
- gear selector
- link
- lever
- selector switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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 SIDECARS, 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
- B62K23/06—Levers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M25/00—Actuators for gearing speed-change mechanisms specially adapted for cycles
- B62M25/02—Actuators for gearing speed-change mechanisms specially adapted for cycles with mechanical transmitting systems, e.g. cables, levers
- B62M25/04—Actuators for gearing speed-change mechanisms specially adapted for cycles with mechanical transmitting systems, e.g. cables, levers hand actuated
Definitions
- the invention relates to a gear selector switch according to the preamble of claim 1 .
- Gear selector switches for bicycles that are actuated by two Bowden cables are known from the prior art.
- the Bowden cables are coupled in opposite directions in such a way that a movement of the cable of one Bowden cable is accompanied by a movement of the cable of the other Bowden cable in the opposite direction.
- a twist grip is used as the gear selector switch.
- WO 2013 173 932 A1 describes a gear selector switch with a two-part actuating lever.
- a first part of the actuating lever is mounted coaxially with a toothed wheel so that it can pivot.
- a second part is pivotably mounted in the first part and has two claws.
- a first claw engages the toothing of the gear wheel when the second part is pivoted in a first direction.
- a second claw engages in the toothing of the gear wheel when the second part is pivoted in a second direction.
- the gear wheel is coupled to a Bowden cable via a ratchet mechanism.
- the invention is based on the object of making available a gear selector switch which is improved over the solutions known from the prior art. This object is achieved by a gear selector switch according to claim 1.
- a gear selector switch is an operating device for a manual transmission.
- the gears of the transmission can be shifted by operating the gear selector switch.
- the transmission is preferably a transmission for a pedal-operated vehicle, such as a bicycle.
- the transmission can be housed in a wheel hub or in a bottom bracket of the bicycle.
- the gear selector has a rotary or pivotable pulling and / or pushing device for a first Bowden cable and a rotating or pivotable pulling and / or pushing device for a second Bowden cable.
- a cable of the respective Bowden cable can be subjected to a pulling and/or pushing force. This allows the rope to be moved within a sleeve of the respective Bowden cable. This movement is preferably transmitted to an actuating means, such as a shift drum, of the manual transmission.
- the pulling and/or pushing devices are preferably connected to one another in one piece.
- the pulling and/or pushing device can be realized as a wheel that has a fixing device for the cable of the first Bowden cable and a fixing device for the cable of the second Bowden cable.
- the two cables each loop around at least part of an outer peripheral surface of the wheel.
- the two cables preferably wrap around the wheel in opposite directions to one another.
- the gear selector according to the invention has one or more intermediate members.
- a first link is rotationally coupled to the two pulling and/or pushing devices.
- Two rotatably or pivotably mounted members are rotationally coupled to one another if there is a reversibly unique relationship between a physical variable that describes a rotation or pivoting of the first member and a physical variable that describes a rotation or pivoting of the second member consists.
- Angles of rotation, angular velocities, torques or rotational accelerations can be considered as physical variables.
- a rotational connection exists, among other things, when the two members are connected to one another in a rotationally fixed manner. In particular, the two members can be connected to one another in one piece.
- the presence of a rotationally effective connection between the first intermediate link and the pulling and/or pushing devices implies that, in addition to the first connecting link, the pulling and/or pushing connections are also links within the meaning of the above definition.
- the two pulling and/or pushing devices act in opposite directions on the respective Bowden cable when the first intermediate link rotates or pivots.
- one pulling and/or pushing device exerts a pulling force on the cable of the first Bowden cable, while the other pulling and/or pushing device relaxes the second Bowden cable or exerts a pushing force on the second Bowden train exerts. If the other pulling and/or pushing device exerts a pulling force on the second Bowden cable, the first-mentioned pulling and/or pushing device relaxes the first Bowden cable or exerts a pushing force on the first Bowden cable.
- the gear selector switch has one or more actuating levers.
- Operating levers are levers that can be operated by a driver of the vehicle. The actuation is accompanied by a tilting or pivoting of each respective lever.
- a first operating lever is constructed in several parts.
- a first part is pivotable coaxially to the intermediate member. This means that a pivot axis of the first part and a rotation or pivot axis of the intermediate member are identical.
- a pivot denotes a rotation with a limited interval of rotation angles.
- a second part of the first lever is pivotably mounted off-axis in the first part. This means that the second part is pivotally fixed in the first part.
- a corresponding pivot axis runs off-axis, preferably parallel, to the above-mentioned pivot axis of the first part.
- the first actuating lever preferably has one or more stops which limit the ability of the second part of the first actuating lever to rotate in the first part.
- the first actuating lever also has a first lock. This is designed to establish a non-rotatable connection between the first part of the first actuating lever and the connecting link.
- the first lock is coupled to the second part of the first operating lever to be activated by pivoting the second part of the first operating lever relative to the first part of the first operating lever in a first direction. If the first lock is activated, it establishes, as described above, the non-rotatable connection between the first part of the first actuating lever and the intermediate member. If the driver actuates the second part of the first actuating lever, this is moved away from the first part of the first actuating lever, so that the first lock is activated.
- the first actuating lever preferably has one or more stops which limit the ability of the second part of the first actuating lever to rotate in the first part. As soon as the second part of the first operating lever hits a stop, the first part of the first operating lever also becomes wasted. Since the first lock has been activated, this is accompanied by a twisting or pivoting of the connecting link and, as a result, the pulling and/or pushing devices.
- the actuating lever makes it possible to install the gear selector switch according to the invention with a rigid handle. This is advantageous over a twist grip, since the risk of unintentional shifting is reduced.
- the two Bowden cables also improve the tactile quality of the shifting processes, since the two Bowden cables provide direct feedback both when shifting up and down.
- the first actuating lever is preferably further developed with a second lock for producing a non-rotatable connection between the first part of the first actuating lever and the intermediate member.
- the second lock is configured to provide a non-rotatable connection between the first portion of the first actuating lever and the link.
- the second lock is activated in the opposite direction to the first lock, i.e. by pivoting the second part of the first operating lever relative to that first part of the first actuating lever in a second direction opposite to the first direction. If the second lock is activated, it establishes, as described above, the non-rotatable connection between the first part of the first actuating lever and the connecting link. This allows both upshifts and downshifts to be shifted using a single operating lever.
- the gear selector switch is preferably further developed with a second intermediate element and a second actuating lever.
- the second actuating lever is constructed analogously to the first actuating lever. Accordingly, it has a first part and a second part. The first part is pivotable coaxially with the second link. A rotation or pivot axis of the second link and a pivot axis of the first part of the second actuating lever are therefore identical.
- the second part of the second actuating lever is pivotably mounted in the first part of the second actuating lever with an offset axis. This means that the second part of the second operating lever is pivotally fixed in the first part of the second operating lever.
- a corresponding pivot axis of the second part of the second actuating lever and the pivot axis of the first part of the second actuating lever are axially offset from one another, preferably parallel.
- the second actuating lever acts on the second link.
- the second actuation lever has a lock for establishing a non-rotatable connection between the first part of the second actuation lever and the second link.
- the lock is activated by pivoting the second part of the second actuating lever relative to the first part of the second actuating lever, so that the non-rotatable connection mentioned comes about.
- the second link is pivoted relative to the first link of the second actuating lever and the lock is activated. If the second part of the second operating lever abuts at the end of its pivoting range against a stop that is preferably present and is formed by the second operating lever also pivoted the first part of the second operating lever. Due to the non-rotatable connection established by the lock between the first part of the second operating lever and the second link, this leads to a pivoting or twisting of the second link.
- first intermediate link and the second intermediate link are rotationally coupled to one another.
- twisting or swiveling effect of the second intermediate link is transferred to the pulling and/or pushing devices, so that a shifting process is triggered via the Bowden cables.
- first intermediate link and the second intermediate link each have external teeth.
- the two external teeth mesh with each other. This results in a reversal of the direction of rotation between the first intermediate link and the second intermediate link. This makes it possible to trigger an upshift or downshift by operating the first operating lever and the second operating lever in the same direction.
- the first intermediate member and the second intermediate member are rotationally connected via a planetary gear set.
- a planetary gear set is part of an assembly with a ring gear, a sun wheel and a planet carrier.
- the planet gears of the planetary gear set are rotatably mounted in the planet carrier and each mesh with the sun gear and/or the ring gear.
- One of the three components sun gear, planet carrier and ring gear is fixed to the housing, while a second component is non-rotatably connected to the first intermediate member and a third component is non-rotatably connected to the second intermediate member.
- a desired direction of actuation of an actuation lever can be realized by configuring the planetary gear set as a plus or minus gear set.
- 1A and 1B show a gear selector switch with exactly one actuating lever
- FIGS. 2A, 2B and 2C show a gear selector switch with two operating levers in a counter-gear design
- Figures 3A and 3B show a first planetary gear selector switch
- Figures 4A and 4B show a second planetary gear selector switch
- Figures 5A and 5B show a third planetary gear selector switch.
- a gear selector switch 101 with a single actuating lever 103 is shown.
- the gear selector switch 101 has a rotatably mounted disc 105 .
- a wire of a first Bowden cable 107 and a wire of a second Bowden cable 109 are looped around this.
- the wire of the first Bowden cable 107 wraps around the disc 105 from the Perspect tive of Fig. 1 A and 1 B counterclockwise. From the wire of the second Bow denzugs 109, the disc 105 is wrapped clockwise. If the disk 105 rotates clockwise, the wire of the first Bowden cable 107 is stretched or pulled and the wire of the second Bowden cable 109 is relaxed or released. When the disk 105 rotates counterclockwise, the wire of the first Bowden cable 107 is relaxed or released and the wire of the second Bowden cable 109 is tightened or pulled.
- a shift drum 111 is arranged offset to the disc 105 .
- the shift drum 111 is rotatably mounted and has a locking device 113.
- the wires of the first Bowden cable 107 and the second Bowden cable 109 also loop around the shift drum 111.
- the rotations of the disk 105 are thus transmitted to the shift drum 111.
- the shift drum 111 is shown in FIG. 1A as an example.
- the embodiment examples of the other figures can also be coupled to the shift drum 111 in the same way via the first Bowden cable 107 and the second Bowden cable 109 .
- the actuating lever 103 is divided into a first part 103a and a second part 103b.
- the second part 103b is pivotably mounted in the first part 103a.
- the first part 103a in turn can be pivoted about an axis of rotation of the disk 105 .
- Both parts 103a, 103b of the actuating lever 103 are held in the zero position shown in FIG. 1A by means of springs.
- the second part 103b When actuated, the second part 103b is pivoted relative to the first part 103a, as shown in FIG. 1B.
- the second part 103b has two claws 115 . From a function of the direction of pivoting of the second part 103b engages one of the claws 115 in a toothing 117 of the disc 105 a.
- the disc 105 and thus the shift drum 111 can be rotated in either direction by actuating the actuating lever.
- FIGS. 2A, 2B and 2C show a gear selector switch 201 with a first actuating lever 203 and a second actuating lever 205.
- the first actuating lever 203 can be positioned below the second actuating lever 205 or above the second actuating lever 205 be arranged.
- the first actuating lever 203 is constructed in two parts, analogously to the actuating lever 103 illustrated in FIGS. 1A and 1B.
- the first operating lever 203 has only a single claw 115 . Accordingly, the first actuating lever 203 can only be actuated in one direction. This corresponds to a rotation of disk 105 in a first direction.
- a rotation of the disk 105 in a second direction opposite thereto is realized by means of the second operating lever 205 .
- Its structure corresponds to the two-part structure of the first actuating lever 203.
- the second actuating lever 205 does not act on the teeth like the first actuating lever 203 117 of the disk 105, but on a toothing of a reversing wheel 207.
- the order floprad 207 meshes with another toothing 209 of the disk 105.
- the disk 105 and the reversing wheel 207 therefore rotate in opposite direction Rich. In this way, upshifts and downshifts can be realized by operating the first operating lever 203 and the second operating lever 205 in the same direction.
- Fig. 3A shows a gear selector switch 301 with two shift levers 203, 205 in side view.
- the gear selector switch 301 has, instead of the reversing gear 207, a planetary set with a rotatably mounted sun gear 303, planetary gears 305 fixedly mounted on the housing and a rotatably mounted ring gear 307.
- Ring gear 307 is formed by disc 105 .
- the planet gears 305 each mesh with the sun gear 303 and the ring gear 307.
- the first actuating lever 203 engages with a claw 115 in the toothing 117 of the disk 105, analogously to the gear selector switch 201 shown in FIGS. 2A, 2B and 2C.
- a claw 115 of the second actuating lever 215 is arranged in such a way that it engages in a toothing of the sun gear 303 .
- a pivoting effect of the second actuating lever 205 is converted into a rotation of the sun gear 303.
- the planetary gears 305 reverse the direction of rotation of the sun gear 303 . The rotation is transmitted to the disc 105 and the two Bowden cables 107, 109 via the ring gear 307.
- a gear selector switch 401 is shown, the side view of which was shown in FIG. 4A corresponds to the side view of the gear selector switch 301 from FIGS. 3A and 3B.
- the internal structure of the gear selector switch 401 shown in FIG. 4B also largely corresponds to the internal structure of the gear selector switch 303 from FIG. 3B.
- the first actuating lever 203 of the gear selector switch 401 has an additional claw 403 .
- the additional claw 403 is designed to act upon actuation of the first actuating lever 203 in Engage in the opposite direction in the teeth of the sun gear 303.
- Rotation of the sun gear 303 by engagement of the auxiliary claw 403 occurs in the opposite direction to rotation of the sun gear by engagement of the claw 115 of the second operation lever 205.
- the disk 105 rotates in the same direction regardless of the direction of operation of the first actuating lever 203.
- the rotation of the disc 105 takes place when the claw 115 engages in the teeth 117 of the disc 105 directly and when the additional claw 403 engages in the sun gear 303 with one of the translations of the planetary gearset.
- the first actuating lever 203 has only one claw 115 in accordance with the gear selector switch 301 shown in FIGS. 3A and 3B .
- the additional claw 503 is designed to engage in the teeth 117 of the disk 105 when the second actuating lever 205 is actuated in the opposite direction.
- the disk 105 is rotated in the same direction as when the first claw 115 of the second actuating lever 205 engages in the toothing of the sun gear 303.
- the disk 105 is rotated in the latter case with a translation of the planetary stage, the rotation of the Disc 105 in an engagement of the additional claw 503 in the teeth 117 of the disc 105 directly.
- Reference sign gear selector switch operating lever a first part of the operating lever b second part of the operating lever disc first Bowden cable second Bowden cable shift drum locking device claw toothing gear selector switch first operating lever second operating lever reversing gear further toothing gear selector switch sun gear planetary gear ring gear gear selector switch additional claw gear selector switch additional claw
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021204103.5A DE102021204103B4 (de) | 2021-04-26 | 2021-04-26 | Gangwahlschalter |
| PCT/EP2022/060886 WO2022229092A1 (de) | 2021-04-26 | 2022-04-25 | Schalthebel mit gegenläufigen bowdenzügen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4330125A1 true EP4330125A1 (de) | 2024-03-06 |
Family
ID=81941052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22728042.7A Withdrawn EP4330125A1 (de) | 2021-04-26 | 2022-04-25 | Schalthebel mit gegenläufigen bowdenzügen |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4330125A1 (de) |
| DE (1) | DE102021204103B4 (de) |
| WO (1) | WO2022229092A1 (de) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3837234A (en) * | 1973-05-21 | 1974-09-24 | Wu S | Bicycle with stepless transmission |
| IT1259523B (it) * | 1992-04-07 | 1996-03-20 | Campagnolo Srl | Dispositivo di comando del cambio di una bicicletta |
| IT1285834B1 (it) * | 1995-10-19 | 1998-06-24 | Campagnolo Srl | Dispositivo di comando di un deragliatore di bicicletta, comprendente una molla antagonista della molla del deragliatore. |
| DE19951700A1 (de) | 1999-10-27 | 2001-05-03 | Helmig Hans Gmbh | Betätigungseinrichtung für Fahrradgangschaltungen mit Zwei-Zug-System |
| US7194928B2 (en) * | 2003-05-30 | 2007-03-27 | Shimano Inc. | Bicycle shift operating device |
| JP4078369B2 (ja) * | 2005-10-06 | 2008-04-23 | 株式会社シマノ | 自転車用変速操作装置 |
| CH706559A2 (de) | 2012-05-25 | 2013-11-29 | Stefan Koller | Schaltvorrichtung. |
| US11021213B2 (en) * | 2018-12-10 | 2021-06-01 | Shimano Inc. | Bicycle operating device |
-
2021
- 2021-04-26 DE DE102021204103.5A patent/DE102021204103B4/de active Active
-
2022
- 2022-04-25 WO PCT/EP2022/060886 patent/WO2022229092A1/de not_active Ceased
- 2022-04-25 EP EP22728042.7A patent/EP4330125A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022229092A1 (de) | 2022-11-03 |
| DE102021204103B4 (de) | 2022-12-15 |
| DE102021204103A1 (de) | 2022-10-27 |
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