EP2571749A1 - Federgabel - Google Patents
FedergabelInfo
- Publication number
- EP2571749A1 EP2571749A1 EP11722367A EP11722367A EP2571749A1 EP 2571749 A1 EP2571749 A1 EP 2571749A1 EP 11722367 A EP11722367 A EP 11722367A EP 11722367 A EP11722367 A EP 11722367A EP 2571749 A1 EP2571749 A1 EP 2571749A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chamber
- suspension fork
- fork
- negative
- valve
- 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- Withdrawn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
- 239000000725 suspension Substances 0.000 claims description 84
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 4
- 230000000750 progressive effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
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 SIDE-CARS, FORECARS, OR THE LIKE
- B62K25/00—Axle suspensions
- B62K25/04—Axle suspensions for mounting axles resiliently on cycle frame or fork
- B62K25/06—Axle suspensions for mounting axles resiliently on cycle frame or fork with telescopic fork, e.g. including auxiliary rocking arms
- B62K25/08—Axle suspensions for mounting axles resiliently on cycle frame or fork with telescopic fork, e.g. including auxiliary rocking arms for front wheel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
- F16F9/0209—Telescopic
- F16F9/0236—Telescopic characterised by having a hollow piston rod
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
- F16F9/0209—Telescopic
- F16F9/0245—Means for adjusting the length of, or for locking, the spring or dampers
- F16F9/0263—Means for adjusting the length of, or for locking, the spring or dampers characterised by actuation means, e.g. manually-operated lever arrangement
-
- 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
- B62K25/00—Axle suspensions
- B62K25/04—Axle suspensions for mounting axles resiliently on cycle frame or fork
- B62K2025/045—Suspensions with ride-height adjustment
Definitions
- the invention relates to a suspension fork according to the preamble of claim 1.
- Such a suspension fork is known for example from DE 199 53 901 C2.
- the fork disclosed there has a spring device with a positive chamber and a
- Negative chamber is provided a connection path which can be closed with a shut-off device.
- one chamber is filled via a filling opening and the other chamber via the connecting path with compressed air or compressed gas. After filling and adjusting the spring device, the filling opening and the
- the shut-off device can be opened when the filling opening is closed and the adjustment can be made. For example, a Hubabsenkung by pushing together the
- the well-known fork has the disadvantage that the adjustment of the fork is expensive and the adjustment of the length of Fork not easy. In particular, there is the difficulty that for lowering the suspension fork the
- Actuator must be constantly pressed while the fork is lowered. Once the desired lowering of the suspension fork is done, the actuator can be released again. Likewise, to extend the suspension fork, the actuator must be constantly pressed and the fork simultaneously relieved. As soon as the
- the actuator can be released again.
- the invention is therefore based on the object, a
- Specified adjusting means for adjusting the length of the fork comprises a valve means which is arranged between the at least one positive chamber and the at least one negative chamber, and an actuating device, wherein the
- Actuator at least a first position for adjusting a small length of the fork (lowered fork) and at least one second position to
- the actuating device a
- Locking device for locking the actuator in the or a first position and the or a second position.
- the actuating device a
- a fork is also provided with at least one positive chamber, at least one negative chamber and an adjusting device for adjusting the length of the suspension fork, wherein the adjusting device comprises a valve device which is arranged between the at least one positive chamber and the at least one negative chamber, and an actuating device wherein the actuating device has a locking device for locking the actuating device in the or a first position and the or a second position.
- the adjusting device can have at least two connecting paths for connecting the positive chamber to the negative chamber.
- the adjusting device can have at least two connecting paths for connecting the positive chamber to the negative chamber.
- the adjusting device comprises a valve device, which is arranged between the at least one positive chamber and the at least one negative chamber, and an actuating device, wherein the adjusting device has at least two connecting paths for connecting the positive chamber to the negative chamber.
- the adjusting device can be so
- the positive chamber is connected to the negative chamber via one of the at least two communication paths, and to set a large length of the fork (extended fork) the positive chamber with the negative chamber via a another of the at least two connection paths is connected.
- the adjusting device can have an adjusting piston which is designed such that it releases the one connecting path in the or a first position of the actuating device and releases the other connecting path in the or a second position of the actuating device.
- the adjusting piston can be arranged displaceably in a cylinder, which is the at least two
- Negative chamber at least partially defined.
- the valve device may comprise at least one check valve.
- the valve device can have at least two check valves.
- the two check valves may be arranged in a chamber through which more preferably at least one communication path extends from the positive chamber to the negative chamber.
- the two check valves may be arranged in a chamber through which more preferably at least one communication path extends from the positive chamber to the negative chamber.
- Check valves valve closure members such as balls, which by a spring means in preferably opposite directions are biased.
- a fork is also provided with at least one positive chamber, at least one negative chamber and an adjusting device for adjusting the length of the suspension fork, wherein the adjusting device comprises a valve device which is arranged between the at least one positive chamber and the at least one negative chamber, and an actuating device wherein the valve means comprises at least two check valves.
- the at least two can be arranged.
- the at least two can be arranged.
- the at least two can be arranged.
- Check valves are formed and arranged such that at least one check valve, a flow of the
- Non-return function locks and that at least one
- Check valve blocks a flow from the negative chamber into the positive chamber by its non-return function.
- At least one connecting path can be arranged between the positive chamber and the negative chamber, and the valve device can be designed and arranged such that in the first position
- a suspension fork is also provided with at least one positive chamber, at least one negative chamber and an adjusting device for adjusting the length of the suspension fork, wherein the adjusting device comprises a valve device which is arranged between the at least one positive chamber and the at least one negative chamber, and an actuating device wherein at least one communication path is arranged between the positive chamber and the negative chamber, and the valve device is designed and arranged such that in the first position
- the adjusting device may have an adjusting piston, which is designed such that it in the or a first position of the actuating device
- the adjusting piston can be arranged displaceably in a cylinder which at least partially defines the at least one connecting path between the positive chamber and the negative chamber.
- a check valve may be formed and arranged in the at least one connection path. In this case, the effective direction of the check valve by the
- Actuator be reversed.
- the check valve in the adjusting piston substantially perpendicular or perpendicular to the main axis of the adjusting piston be arranged and reversed by the actuation of the actuator with the defined in the adjusting at least one communication path between the positive chamber and the negative chamber.
- the suspension fork can have an intermediate chamber which is fluidly arranged between the positive chamber and the negative chamber, at least one between the negative chamber and the intermediate chamber
- a communication path is arranged, in which a valve device is designed and arranged such that a flow from the negative chamber is locked in the intermediate chamber, while a flow from the intermediate chamber into the
- a fork is also provided with at least one positive chamber, at least one negative chamber and an adjusting device for adjusting the length of the suspension fork, wherein the adjusting device comprises a valve device which is arranged between the at least one positive chamber and the at least one negative chamber, and an actuating device wherein the suspension fork has an intermediate chamber, which is arranged fluidically between the positive chamber and the negative chamber, wherein between the negative chamber and the intermediate chamber at least one connection path is arranged, in which a
- Valve device is designed and arranged such that a flow from the negative chamber into the
- the connection between the negative chamber and the intermediate chamber exclusively via the connection path, which has the valve device.
- the valve device may comprise a check valve which blocks a flow in the intermediate chamber.
- the actuating device a
- the remote control can be a radio remote control.
- the actuating device or the remote control may have a lever.
- the remote control may have the or a locking device for locking the remote control in a first position and a second position.
- the adjusting device can have at least one further position in which the length of the suspension fork is adjustable, and at least one blocking position in which the adjustability of the length of the suspension fork is blocked.
- the fork can be a pneumatic
- Be suspension fork which preferably comprises a pneumatic suspension.
- Fig. 1 shows a side sectional view of a fork according to an embodiment of the invention along the line I-I of Fig. 2, wherein the adjusting device in a first position for adjusting the
- FIG. 2 shows a front view of the suspension fork of FIG. 1.
- Fig. 3 shows an enlarged detail of the through the
- Circle III defined area of FIG. 1. shows a detail of FIG. 3 corresponding detail view of the fork of FIG. 1, wherein the
- Adjusting device is shown in a second position for adjusting the suspension fork in a lowered or retracted position. shows an enlarged detail view of the area defined by the circle V of FIG. 1.
- FIG. 5 shows a detailed view corresponding to FIG. 5 of the fork of FIG. 1, wherein the suspension fork is shown in a further lowered or retracted position.
- FIG. 9 shows a view corresponding to FIG. 8
- Fig. 10 shows a schematic view of an alternative
- Adjustment device in a first position to Adjust the suspension fork in an extended position.
- FIG. 11 shows a view corresponding to FIG. 10
- Figures 1 to 5 show a fork according to a first embodiment of the invention.
- the suspension fork 1 has a spring device 2 and a
- Damper device 3 which are connected to each other via a fork bridge 4, a front stabilizer 5 and a rear stabilizer 5.
- a thru axle 6 is provided for receiving a front wheel, not shown, of a bicycle, not shown.
- the spring device 2 and the damper device 3 each have a fixed to the fork bridge 4 connected standpipe 10 and relative thereto telescopically sliding slide tube 20.
- the suspension fork can also be formed with sliding tubes immersed in uprights or less or more or none
- a spring device 30 having a positive chamber 31, a negative chamber 32 and an intermediate chamber 33 is provided.
- a main piston 8 is provided, which on a piston rod. 9
- the air or gas is compressed in the positive chamber 31, so that a spring action with a progressive spring characteristic.
- the pressure in the positive chamber 31 should at the
- the basic setting i.e., the pre-ride adjustment of the spring characteristic of the suspension fork
- the basic setting may be selected substantially in response to the driver's weight acting on the suspension fork.
- the air or the gas When rebounding the suspension fork from the home position, the air or the gas is compressed in the negative chamber 32, so that a spring action takes place with a progressive spring characteristic.
- the pressure in the negative chamber 32 should be selected in the basic setting substantially in response to the desired responsiveness of the suspension fork.
- valve means 50 includes a check valve 51 and a
- Negative chamber 32 are formed.
- the check valve 51 has a ball 53 and a
- the check valve 52 has a ball 54 and a valve seat 56. Between the two balls 53, 54, a spring 57 is arranged, which biases the two balls 53, 54 in the corresponding valve seats 55 and 56, respectively.
- one of the two balls 53, 54 or both balls 53, 54 may be biased into their valve seats by other means known to those skilled in the art.
- two springs may be provided instead of one spring 57.
- one or two clips could be provided.
- the balls could also be arranged on screens and / or sponges or floating. Both balls could also be placed up or down if the connection line structure is adjusted accordingly.
- other valve closing members known to the person skilled in the art, in particular for non-return valves, may be provided,
- a cylinder 41 of the adjusting device 40 is a
- Valve device 50 includes. On the adjusting piston 70, a seal 71 and a seal 72 are arranged such that the space 57 receiving the spring 57 between the balls 53 and 54 in an upper position (see Fig. 3) via a bore in the adjusting piston 70 with the positive chamber 31 and in a lower position (FIG. 4) via the same or a different bore 74 in the adjusting piston 70 with the
- the intermediate chamber 33 communicates with the negative chamber 32 via a valve assembly shown in detail in FIG.
- the actuating device 60 has an actuating button 61, with which the actuating device 60 in a first defined and a second defined position the
- Adjusting device adjusted such that the adjusting piston 70 in the upper position (Fig. 3) and lower position (Fig. 4) is arranged.
- the suspension fork 1 In the position of Fig. 3, the suspension fork 1 is in the extended position, or remains the suspension fork 1 in the extended position.
- the adjusting piston 70 is arranged in such a way in the cylinder 41, that the intermediate space, which receives the spring 57, is connected to the positive chamber 31 via a bore in the adjusting piston 70.
- the suspension fork 1 In the position of Fig. 4, the suspension fork 1 is in the lowered position, or remains the suspension fork in the lowered position.
- the adjusting piston 70 is arranged in such a way in the cylinder 41, that the intermediate space, which receives the spring 57, is connected to the intermediate chamber 33 and thus to the negative chamber 32 via a bore 74 in the adjusting piston 70.
- the spring fork is in the lowered position, prevents the check valve 51, that in the
- Fork 1 remains in the lowered position.
- the suspension fork on a safety suspension which ensures that the fork does not strike at full deflection, especially in the lowered or retracted position.
- a mechanical spring such as an elastomer can be provided at the end of the strut.
- the preferred solution is a suspension according to the disclosed in DE 10 2006 010 245 AI, the entire disclosure of which is incorporated by reference in the present disclosure, disclosed fork.
- Fig. 5 shows the corresponding design of the piston rod.
- connecting bores 45 and 46 are provided in the piston rod 8 .
- connection path 36 between the piston rod 8 In a connection path 36 between the piston rod 8
- Negative chamber 32 and the intermediate chamber 33 is a
- Check valve 35 is provided, which is arranged and designed such that a flow from the negative chamber 32 into the intermediate chamber 33 is blocked when the negative chamber
- the check valve 35 then prevents flow from the negative chamber 32 in the intermediate chamber 33, so as to ensure that from a certain lowering of the fork (when the connecting holes 45 pass over the seal 34), the pressure in the negative chamber 32 is not affected by a flow in the intermediate chamber 33 can decrease. As a result, a spring action of the negative chamber 32 is ensured and a mechanical stop avoided.
- FIGS 6 to 11 show variants of an alternative
- an adjusting piston 170 is rotatably arranged in a cylinder 141 about its main axis.
- a communication path 180 is formed, in which a valve device 150 is arranged with a check valve 151, which may have, for example, a biased into a valve seat with, for example, a spring ball.
- a check valve 151 which may have, for example, a biased into a valve seat with, for example, a spring ball.
- Alternative check valves known to those skilled in the art may also be provided.
- the cylinder 170 are a connection 143 to a positive chamber, not shown, and a connection 144 to a non-illustrated
- the connecting path 180 connects the connection 143 and the connection 144 such that a flow is blocked by the check valve from the positive chamber into the intermediate chamber or negative chamber and a flow from the
- Negative chamber or intermediate chamber in the positive chamber is possible. As a result, the fork is moved to the extended position or remains in the extended position.
- the connecting path 180 also connects the connection 143 to the connection 144, wherein the adjusting piston 170 is in a position which is rotated by 180 degrees with respect to the position shown in FIG. This is the result
- FIGS. 8 and 9 show a variant of the alternative adjustment device 150 shown schematically in FIGS. 6 and 7, to the description of which reference is made. In the following, only the differences are described, where
- the cylinder 140 has in each case two connections 143 and 144, respectively, which are arranged in such a way that the reverse direction of the check valve 252 is reversed with a rotation of 90 degrees.
- FIGS. 10 and 11 show a variant of the alternative shown schematically in FIGS. 6 and 7 or 8 and 9
- Adjustment device 150 or 250 reference is made to the description. The following are just the differences described, wherein corresponding parts are referred to with the same but increased by 100 or 200 reference numerals.
- the cylinder 240 has in each case two connections 243 and 244 which are arranged in such a way that a reversal of the blocking direction of the check valve 252 takes place with a rotation of 45 degrees.
- angles can be chosen appropriately.
- the angle is 20 to 160 degrees, more preferably 30 to 140 degrees, more preferably 40 to 120 degrees. at
- Versions with mechanical remote control are preferable to smaller angles, for example 90 degrees.
- connections 143 and 144 are provided.
- multiple connections 143 and 144 may be provided.
- the suspension fork may have a remote control for actuating the actuator 60.
- the remote control can for example have a lever with a Bowden cable.
- a return spring may be provided, whose
- Restoring force is selected such that a first provided in the remote control threshold is not overcome by the spring force.
- Actuator can be moved to another position.
- at least one additional threshold can be provided in the actuating device.
- Remote control at least one position can be set, which can be achieved against the spring force. The other position can then be set on the actuator.
- the remote control may also have a radio control. Such radio controls are known in the art.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Axle Suspensions And Sidecars For Cycles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010021076A DE102010021076A1 (de) | 2010-05-19 | 2010-05-19 | Federgabel |
PCT/EP2011/058070 WO2011144667A1 (de) | 2010-05-19 | 2011-05-18 | Federgabel |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2571749A1 true EP2571749A1 (de) | 2013-03-27 |
Family
ID=44119107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11722367A Withdrawn EP2571749A1 (de) | 2010-05-19 | 2011-05-18 | Federgabel |
Country Status (5)
Country | Link |
---|---|
US (1) | US20140191491A1 (de) |
EP (1) | EP2571749A1 (de) |
DE (1) | DE102010021076A1 (de) |
TW (1) | TW201206753A (de) |
WO (1) | WO2011144667A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6121888B2 (ja) * | 2013-09-27 | 2017-04-26 | 株式会社ショーワ | 懸架装置および懸架システム |
JP6527774B2 (ja) * | 2015-07-23 | 2019-06-05 | 株式会社ショーワ | 車高調整装置 |
TWI654112B (zh) * | 2018-04-12 | 2019-03-21 | 六哥股份有限公司 | Vehicle suspension front fork device and electric control method thereof |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19953901C2 (de) | 1999-11-10 | 2002-10-02 | Voitl Peter | Federungseinrichtung |
DE20022708U1 (de) * | 2000-03-20 | 2002-02-28 | Albrecht, Stephan, 83627 Warngau | Fahrrad |
DE10062999C5 (de) * | 2000-12-16 | 2009-05-28 | Thyssenkrupp Bilstein Suspension Gmbh | Regelbarer Schwingungsdämpfer mit einer Dämpfungskraftsteuerung |
US6592136B2 (en) * | 2001-07-02 | 2003-07-15 | Fox Factory, Inc. | Bicycle fork cartridge assembly |
US20080296814A1 (en) * | 2002-06-25 | 2008-12-04 | Joseph Franklin | Gas spring with travel control |
US7703585B2 (en) * | 2002-06-25 | 2010-04-27 | Fox Factory, Inc. | Integrated and self-contained suspension assembly having an on-the-fly adjustable air spring |
DE102006009759A1 (de) * | 2006-03-01 | 2007-09-06 | Gustav Magenwirth Gmbh & Co. Kg | Federgabel |
DE102006010245A1 (de) * | 2006-03-02 | 2007-09-06 | Gustav Magenwirth Gmbh & Co. Kg | Federwegsverstellung |
US7870936B2 (en) * | 2006-08-18 | 2011-01-18 | Sram, Llc | Bicycle suspension system |
US20090001684A1 (en) * | 2007-06-29 | 2009-01-01 | Specialized Bicycle Components, Inc. | Bicycle suspension assembly |
US7722069B2 (en) * | 2008-06-06 | 2010-05-25 | Shimano Inc. | Bicycle suspension system |
US7900947B2 (en) * | 2008-07-31 | 2011-03-08 | Shimano Inc. | Bicycle suspension system |
DE102008057268A1 (de) * | 2008-11-13 | 2010-05-20 | Dt Swiss Ag | Federgabel für ein Fahrrad |
US9758210B2 (en) * | 2013-08-23 | 2017-09-12 | Hayes Bicycle Group, Inc. | Suspension system |
-
2010
- 2010-05-19 DE DE102010021076A patent/DE102010021076A1/de not_active Withdrawn
-
2011
- 2011-05-18 WO PCT/EP2011/058070 patent/WO2011144667A1/de active Application Filing
- 2011-05-18 TW TW100117488A patent/TW201206753A/zh unknown
- 2011-05-18 EP EP11722367A patent/EP2571749A1/de not_active Withdrawn
- 2011-05-18 US US13/698,791 patent/US20140191491A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2011144667A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2011144667A1 (de) | 2011-11-24 |
TW201206753A (en) | 2012-02-16 |
US20140191491A1 (en) | 2014-07-10 |
DE102010021076A1 (de) | 2011-11-24 |
DE102010021076A8 (de) | 2013-08-22 |
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Inventor name: BEIER, JUERGEN Inventor name: LUEDE, DIRK |
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18D | Application deemed to be withdrawn |
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