WO2003004344A2 - Fahrrad - Google Patents
Fahrrad Download PDFInfo
- Publication number
- WO2003004344A2 WO2003004344A2 PCT/EP2002/006133 EP0206133W WO03004344A2 WO 2003004344 A2 WO2003004344 A2 WO 2003004344A2 EP 0206133 W EP0206133 W EP 0206133W WO 03004344 A2 WO03004344 A2 WO 03004344A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bicycle
- piston
- cylinder
- bearing system
- steering head
- Prior art date
Links
- 239000000725 suspension Substances 0.000 claims abstract description 13
- 239000012530 fluid Substances 0.000 claims abstract 6
- 210000000003 hoof Anatomy 0.000 claims description 7
- 230000001012 protector Effects 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 23
- 229920001971 elastomer Polymers 0.000 description 18
- 239000000806 elastomer Substances 0.000 description 13
- 238000013016 damping Methods 0.000 description 12
- 238000007667 floating Methods 0.000 description 12
- 125000006850 spacer group Chemical group 0.000 description 12
- 238000013459 approach Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 239000011796 hollow space material Substances 0.000 description 3
- 239000013013 elastic material Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 210000000707 wrist Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J1/00—Saddles or other seats for cycles; Arrangement thereof; Component parts
- B62J1/02—Saddles resiliently mounted on the frame; Equipment therefor, e.g. springs
- B62J1/06—Saddles capable of parallel motion up and down
-
- 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
- B62K19/00—Cycle frames
- B62K19/30—Frame parts shaped to receive other cycle parts or accessories
- B62K19/36—Frame parts shaped to receive other cycle parts or accessories for attaching saddle pillars, e.g. adjustable during ride
-
- 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
- B62K21/00—Steering devices
- B62K21/06—Bearings specially adapted for steering heads
-
- 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
- B62K21/00—Steering devices
- B62K21/18—Connections between forks and handlebars or handlebar stems
-
- 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
- B62K21/00—Steering devices
- B62K21/18—Connections between forks and handlebars or handlebar stems
- B62K21/22—Connections between forks and handlebars or handlebar stems adjustable
-
- 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
-
- 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
- B62K25/28—Axle suspensions for mounting axles resiliently on cycle frame or fork with pivoted chain-stay
Definitions
- the present invention relates to a bicycle adjustment device, in particular an adjustment device for height adjustment of the front suspension, the rear suspension, the saddle or the handlebar stem of a bicycle, e.g. a mountain bike, a bicycle with at least one bicycle control device, and a bicycle steering head bearing system.
- a bicycle adjustment device for height adjustment of the front suspension, the rear suspension, the saddle or the handlebar stem of a bicycle, e.g. a mountain bike, a bicycle with at least one bicycle control device, and a bicycle steering head bearing system.
- the object of the invention is to provide a new type of bicycle adjustment device or a new type of bicycle, as well as a new type of bicycle steering head bearing system.
- the bicycle control device according to the invention is installed in a bicycle, the user of the bicycle can easily adapt the bicycle geometry to the respective circumstances.
- the height of the front and / or rear suspension can be changed - preferably simultaneously - during use of the bicycle.
- the control device according to the invention is particularly suitable for mountain bikes.
- the front wheel can be retracted to go uphill on a mountain bike and extended again when going downhill.
- the rear wheel can also be extended while driving uphill and retracted when driving downhill.
- FIG. 1 shows a control device according to a first exemplary embodiment of the invention in longitudinal section
- FIG. 2a shows an adjustment device according to a second exemplary embodiment of the invention in longitudinal section
- FIG. 2b shows a perspective view of the control device shown in FIG. 2a;
- FIGS. 2a and 2b shows a detailed view of the upper section of the tappet shown in FIGS. 2a and 2b in longitudinal section;
- Fig. 3 shows a control device according to a third embodiment of the invention in longitudinal section 4 shows a detailed illustration of the switch used in the control device shown in FIGS. 2a, 2b, 2c and in the control device shown in FIG. 3;
- FIG. 5a shows a control device according to a fourth exemplary embodiment of the invention in longitudinal section
- FIG. 5b is a perspective view of the control device shown in FIG. 5a;
- FIGS. 5a and 5b shows a detail of the upper section of the tappet shown in FIGS. 5a and 5b in longitudinal section;
- FIG. 6 shows a control device according to a fourth exemplary embodiment of the invention in longitudinal section
- FIG. 7 shows a detailed illustration of an alternative exemplary embodiment of a switch which can be used in the control device shown in FIG. 2a, 2b, 2c and in the control device shown in FIG. 3;
- FIG. 8 shows a bicycle with two control devices according to an embodiment of the invention in longitudinal section
- FIG. 9 shows a perspective illustration of a bicycle steering head bearing system from the right side, on which two fork legs of a front fork L and a handlebar stem are mounted;
- FIG. 10 shows a perspective illustration of the bicycle steering head bearing system shown in FIG. 9 with the handlebar stem mounted thereon, but without fork legs from the left-hand side;
- FIG. 11a shows a longitudinal section through the steering head bearing system shown in FIGS. 9 and 10 with the fork legs and handlebar stem mounted thereon;
- FIG. 11b shows a detailed view of a section of the longitudinal section of the steering head bearing system shown in FIG. 11a.
- 1 shows a control device for height control of the front wheel suspension of a bicycle according to an exemplary embodiment of the present invention.
- a pneumatic cylinder 30a is mounted at its lower end via a screw connection to a guide tube 37a -)
- a tube 37b and a piston rod 32a are connected to the bridge.
- a piston 31a is arranged at the lower end of the piston rod 32a and is slidably guided in the pneumatic cylinder 30a.
- the tube 37b and the piston rod 32a are opposite the guide tube 37a and the pneumatic cylinder 30a in the longitudinal direction, ie in the direction of a pipe A displaceable.
- the first cylinder space 34a i.e. the "plus chamber” is built by the pneumatic cylinder 30a.
- the second cylinder chamber 35a i.e. the "minus chamber” is an annular cylinder space which is built up by the pneumatic cylinder 30a, the piston rod 32a and the piston 31a.
- the lower outer surface of the piston 31a which delimits the first cylinder space 34a upwards, is larger than the ring-shaped upper outer surface of the piston 31a, which delimits the second cylinder space 35a downwards.
- a through opening is provided in the piston 31a, which connects the first cylinder chamber 34a to the second cylinder chamber 35a, and which is evident or closable by a valve.
- the valve is connected to an actuating device 85a, which is up to the height of the steering unit 7a by the piston 31a or The piston rod 32a is guided upwards.
- the actuating device 85a has an actuating element 86a at the level of the steering unit or the handlebar. If this is actuated, the valve opens or closes
- the valve is opened again and the piston 31a, the piston rod 32a and the tube 37b are pushed down by the user of the bicycle with respect to the guide tube 37a and the pneumatic cylinder 30a in the direction of the arrow A.
- This can be achieved, for example that the user of the bicycle exerts a force on the steering unit 7a from above in the direction of a pipe B.
- a balance of forces between the "plus chamber” 34a and the "minus chamber” 35a is added to the piston 31a, the piston 31a, the piston rod 32a and the tube 37b take a third control with respect to the guide tube 37a and the pneumatic cylinder 30a, for example beneath the control shown in FIG. 1 In this control, the bicycle is particularly well suited for uphill rides
- An element 33a made of elastic material is arranged at the lower end of the pneumatic cylinder 30a. Above this is a float element 38a, which seals the first cylinder space 34a from the cylinder space in which the elastic element 33a is arranged
- FIG. 2a, 2b and 2c show a control device according to a further exemplary embodiment of the present invention.
- a pneumatic cylinder 10a is connected at the lower end to a wheel suspension (not shown) on which a front wheel of a bicycle can be suspended ,
- a piston-shaped tappet 17b is attached to a steering unit (not shown) consisting of handlebar, handlebar tube and (fork) bridge of the bicycle, the lower, wider end section 17c of which is slidably guided in the pneumatic cylinder 10a according to FIG. 2a.
- the tappet 17b and the Pneumatic cylinders 10a have an essentially circular cross-sectional contour, the outer dutch knife of the lower end section 17c of the plunger 17b essentially the inside diameter of the pneumatic Cylinder 10a corresponds to the plunger 17b in relation to the pneumatic cylinder 10a in the longitudinal direction, ie in the direction of a arrow A.
- the outer wall of the pneumatic cylinder 10a includes a first cylinder space 14a, which forms a "plus chamber".
- the "plus chamber” 14a is delimited at the bottom by a floating piston 19a and at the top by the underside of the lower end section 17c of the plunger 17b.
- annular sealing elements 19c are provided on the outer wall of the floating piston 19a and are arranged in appropriately shaped annular grooves in the floating piston 19a.
- annular circumferential sealing elements 19b are provided, which are arranged in appropriately shaped annular grooves in the plunger 17b.
- the outer wall of the pneumatic cylinder 10a includes a second, ring-shaped cylinder space 15a, which forms a "minus chamber".
- the "minus chamber” 15a is delimited at the bottom by the annular upper side of the lower end section 17c of the plunger 17b and at the top by an annular seal 17d attached to the top of the pneumatic cylinder 10a, and inwardly from the outer wall of a central, less wide portion 17a of the plunger 17c.
- ring-shaped circumferential sealing elements 19b are provided on the outer and inner wall of the seal 17d and are arranged in appropriately shaped ring grooves of the seal 17d.
- the central, less wide section 17a of the plunger 17c is slidably guided in a circular center above the seal 17d, and thus in the longitudinal direction, i.e. slidable in the direction of the arrow A relative to the seal 17d.
- the area of the underside of the lower end section 17c of the plunger 17b, which delimits the first cylinder space 14a upwards, is larger than the area of the r-shaped upper side of the lower end section 17c of the plunger 17b, which delimits the second cylinder space 15a downwards.
- a first hydraulic line 16a runs in the middle in the longitudinal direction through the plunger 17b and is connected at the bottom to the “plus chamber” 14a.
- the first hydraulic line 16a has an essentially circular cross section.
- a second hydraulic line 16b runs through the plunger 17b and is connected to the “minus chamber” 15a below, for example via corresponding bores.
- the second hydraulic line 16b has an annular cross section and is separated from the first hydraulic line 16a by a tubular intermediate element 18
- a valve 19 is provided at the top of the tappet 17b, via which air can be pumped from the outside into the first hydraulic line 16a and into the “plus chamber” 14a.
- the valve 19 prevents the air from the "plus chamber” 14a and the first hydraulic line 16a from escaping again to the outside.
- the first hydraulic line 16a is connected at the top of the tappet 17b via a horizontal bore 13a to a first hose 12a shown in FIG. 2a
- the second hydraulic line 16b is connected via a horizontal bore 13b to a second hose 12b shown in FIG.
- a switch 11 is provided between the two hoses 12a, 12b, which functions as a valve between the hoses 12a, 12b: with the hoofs of the switch 11, a hydraulic connection can be established between the hoses 12a, 12b, or the hose 12a can be airtight be separated from the hose 12b.
- the switch 11 is opened again, and the ram 17b by the user of the bicycle with respect to the pneumatic cylinder 10a in the direction of the arrow A downwards If the switch 11 is closed again, an equilibrium of forces between the "plus chamber” and the "minus chamber” is activated again at the lower end section 17c of the plunger 17b, the plunger 17b assuming a third control in relation to the pneumatic cylinder 10a, which, for example, is below that in FIG Figure 2a shown control lies in this control the bike is particularly well suited for uphill rides
- An upper, wider end section of the floating piston 19a is slidably guided in the pneumatic cylinder 10a.A correspondingly, a lower end section of the floating piston 19a is slidably guided in a spacer 10b, which is attached to the lower end of the pneumatic piston 10a.
- the floating piston 19a is therefore opposite the pneumatic cylinder 10a in Longitudinal direction, ie slidable in the direction of a pipe B, and serves as a lower damping element
- the area of the upper side of the upper end section of the floating piston 19a, which delimits the lower cylinder chamber 14a downward, is larger than the area of the annular lower side of the upper end section of the floating piston 19a delimiting a lower air chamber 14b.
- a valve 19d is provided, via which air can be pumped into the lower air chamber 14b from the outside.
- the valve 19d prevents the air from escaping to the outside again from the lower air chamber 14b.
- ring-shaped circumferential sealing elements are provided on the outer wall of the spacer 10b, which are arranged in appropriately shaped annular grooves in the spacer 10b.
- FIG. 3 shows a control device according to a third exemplary embodiment of the invention. This corresponds identically to the control device explained in connection with FIGS.
- Each spacer 22a, 22b, 22c has an attachment at the top and bottom, which is in each case in the middle of an elastomer 29f, 29g, 29h, 29i Extending above the uppermost elastomer 29f is a float element 21, which seals the "plus chamber" 24a enclosed by the pneumatic cylinder 20a downward, for example by means of a seal, in particular a sealing ring.
- the float element 21 can also be designed such that the scraper element hwimmerelement 21 does not seal the "plus chamber” 24a downward (nor does it seal the elastomers 29f, 29g, 29h, 29i and the spacers 22a, 22b, 22c), and / or the Schwir ⁇ merelement seal (and / or the elastomers 29f, 29g, 29h, 29i and spacers 22a, 22b, 22c) is / are designed to be semi-permeable to air or permeable to air. This ensures that air between the areas below and above the float element 21 n rooms can be exchanged (and possibly also between the different under the. Float element 21 Hegenden spaces).
- the "plus chamber” 24a is then sealed downward, for example with hooves of the element 29k below. A valve can be attached to this, through which air can be pumped into the “plus chamber 24”.
- FIG. 4 shows a detailed illustration of the switch 11 used in FIGS. 2a, 2b, 2c and in the control device shown in FIG. 3.
- the switch 11 is fastened, for example, to the handlebar of the bicycle by means of a screw.
- the first passage opening 40a is connected to a first, cylindrical cavity 41a, which extends downwards from the top of the switch 11.
- the second passage opening 40b is connected in a corresponding manner to a second, cylindrical cavity 41b.
- the two cavities 41a, 41b are connected to one another via a central cavity 41c, which tapers upward in a step-like manner
- An upper, wider end portion of a switching element 42 is slidably guided in the first cavity 41a.
- a middle, narrower section of the switching element 42 is slidably guided in the middle cavity 41c, and a lower, wider end section of the switching element 42 is slidably guided in the second cavity 41b.
- the switching element 42 is thus within the switch 11 in the longitudinal direction, ie in the direction of a pipe C. displaceable.
- annular sealing elements 45 are provided on the outer wall of the switching element 42 and are arranged in correspondingly shaped annular grooves in the switching element 42.
- the lower outer surface of the lower, wider end section of the switching element 42, which delimits the second cavity 41b upwards, is larger than the annular, limiting upper outer surface of the lower, wider end section of the switching element 42 which delimits the first hollow space 41a downwards Pneumatic forces resulting from this, the switching element 42 is pressed upward.
- An annular sealing element 44 is pressed against the ring-shaped upper outer surface of the lower, wider end section of the switching element 42 and against an annular lower outer surface of a step-like shoulder of the central cavity 41c.
- the first cavity 41a is pneumatically separated from the second cavity 41b, and thus also the plus and minus chambers 14a, 15a which are connected to the respective cavities 41a, 41b and are shown in FIG. 2a.
- the switching element 42 If the switching element 42 is pressed downward against the air pressure by the user of the bicycle in the direction of a pipe D, the sealing element 44 is released, so that air can flow from the first cavity 41a via the central cavity 41c into the second cavity 41b, or vice versa, the switching element 42 released by the user, the latter is pushed upwards again in the direction of the pipe C due to the pneumatic pressure. As a result, the first cavity 41a is again pneumatically separated from the second cavity 41b, and thus also those in connection with the respective cavities 41a, 41b Figure 2a shown plus and minus chambers 14a, 15a.
- the switch 111 shown in FIG. 7 can also be used.
- Switch 111 is fastened, for example, to the handlebar of the bicycle by means of a screw.
- the first tube 12a shown in FIGS. 2a and 4 can, according to FIG. 7, have a first, horizontal passage opening 140a, and the second tube 12b can have a second, horizontal passage opening 140b of the switch 111 can be connected.
- the passage openings 140a, 140b are connected to a cylindrical cavity 141a which passes through the switch 111 in the longitudinal direction.
- a cylindrical lower portion of a switching element 142 is slidably guided in the cavity 141a.
- the switching element 142 is thus inside the switch 111 in the longitudinal direction, i.e. slidable in the direction of a pipe C.
- annular circumferential sealing element 145a is provided on the outer wall of the switching element 142 and is arranged in a correspondingly shaped annular groove in the switching element 142
- annular sealing elements 145b, 145c are provided on the outer wall of the switching element 142, which are also arranged in correspondingly shaped annular grooves of the switching element 142.
- the sealing elements 145b, 145c serve to prevent air from escaping downward from the lower passage opening 140b via the cavity 141a, and air from the upper passage opening 140a upward through the cavity 141a.
- the cavity 141b is widened in a step-like manner at an upper region of the switch 111.
- a spring element 146 is supported downward on the top of the step.
- a switching button 147 is provided, on the underside of which the spring element 146 is supported upwards.
- the spring element 146 spirally winds around a mutually cylindrical section of the switching element 142.
- the switching element 142 is pressed upwards by the spring force
- the switching element 142 If the switching element 142 is pressed against the spring force by the user of the bicycle in the direction of a arrow D, the upper passage opening 140a and the lower one come Passage opening 140b with a groove 148 between the upper and the lower sealing element 145a, 145b in a g-shaped manner from the switching element 142 in connection. As a result, air can flow from the upper passage opening 140a via the groove 148 into the lower passage opening 140b, or vice versa.
- the passage opening 140a is pneumatically separated again from the lower passage opening 140b, and thus also the plus and minus chambers 14a, 15a, which are connected to the respective passage openings 140a, 140b and are shown in FIG. 2a.
- FIG. 5a, 5b, 5c and 5d show a control device according to a further exemplary embodiment of the present invention.
- a pneumatic cylinder 50a is connected at the lower end to a wheel suspension (not shown) on which a front wheel of a bicycle is connected can be hung.
- a piston-shaped tappet 57b is attached to a steering unit (not shown) consisting of handlebar, steering tube and (fork) bridge of the bicycle, the lower, wider end section 57c of which is slidably guided in the pneumatic cylinder 50a according to FIG. 5a.
- the tappet 57b and the Pneumatic cylinders 50a have an essentially circular cross-sectional contour, the outer diameter of the lower end section 57c of the plunger 57b essentially corresponding to the inner diameter of the pneumatic cylinder 50a.
- the plunger 57b is longitudinally opposite the pneumatic cylinder 50a, ie slidable in the direction of a arrow A.
- the outer wall of the pneumatic cylinder 50a cuts in a first cylinder space 54a, which forms a "plus chamber".
- the "plus chamber” 54a is sealed at the bottom by a float element 61.
- a ring-shaped sealing element is provided on the outer wall of the float element 61 a correspondingly shaped annular groove of the Schwirnmer element 61 are arranged.
- a plurality of annular elastomers 69f, 69g, 69h, 69i, which act as damping elements, are arranged in the pneumatic cylinder 50a under the float element 61 , Between each two elastomers 69f, 69g, 69h, 69i there is a spacer 62a, 62b, 62c. Each spacer 62a, 62b, 62c has top and bottom an approach that extends into a center of an elastomer 69f, 69g, 69h, 69i
- the "plus chamber” 54a is delimited at the top by the underside of the lower end section 57c of the plunger 57b.
- ring-shaped sealing elements 59b are provided on the outer wall of the lower end section 57c of the plunger 57b molded ring grooves of the plunger 57b are arranged.
- the outer wall of the pneumatic cylinder 50a cuts in a second, ring-shaped cylinder space 55a, which forms a "minus chamber".
- the "minus chamber” 55a is delimited downwards from the top of the lower end section 57c of the plunger 57b, and upwards from one at the top Pneumatic cylinder 50a attached annular seal 57d, and inwardly from the outer wall of a central, less wide portion 57a of the plunger 57c.
- ring-shaped circumferential sealing elements 59b are provided on the outer and inner wall of the seal 57d, which are arranged in appropriately shaped ring grooves of the seal 57d.
- the central, less wide section 57a of the plunger 57c is slidably guided in a circular center above the seal 57d, and thus in the longitudinal direction, i.e. displaceable in the direction of the arrow A relative to the seal 57d.
- the area of the underside of the lower end section 57c of the plunger 57b, which delimits the first cylinder space 54a upward, is larger than the upward-facing areas of the lower end section 57c of the plunger 57b, which delimit the second cylinder space 55a downwards.
- a longitudinal cavity 56b extends longitudinally centrally through the plunger 57b.
- the cavity 56b has a substantially annular cross section.
- a hydraulic tube 56a is arranged in the cavity 56b in a longitudinally displaceable manner and is connected at the bottom to the “plus chamber” 54a
- a valve 59 is provided at the top of the hydraulic tube 56a, via which air is pumped from the outside into the hydraulic tube 56a and into the “plus chamber” 54a can.
- the valve 59 prevents the air from the "plus chamber” 54a and the hydraulic pipe 56a from escaping to the outside again.
- a lower, wider end section of the hydraulic pipe 56a functions as a valve: As shown in FIG. 5d, the outer surface of the lower, wider end section of the hydraulic pipe 56a tapers upwards (here: in the form of a cone). Correspondingly, the inner surface of the cavity 56b in the region of the lower, wider end section 57c of the plunger 57b is also tapered upward (here: provided with a step).
- the plunger 57b with respect to the Pneumatic cylinder 50a takes a third control, e.g. below the control unit shown in FIG. 5a In this control unit, the bicycle is particularly well suited for uphill rides
- a damping element can also be arranged around the less wide section 57a of the plunger 57c , elastomer attached to the plunger 57c can be used (or, for example, a spring arranged around the less wide portion 57a of the plunger 57c).
- elastomer attached to the plunger 57c can be used (or, for example, a spring arranged around the less wide portion 57a of the plunger 57c).
- the impact of the elastomer or the spring on the upper end section of the pneumatic cylinder 50a prevents the plunger 57b from moving too far downward.
- it can be located below the pneumatic cylinder 50a or the cartridge a spring may be arranged. As a result, the cartridge "stands" spring-loaded on the wheel suspension or on the bottom of the fork, ie it is spring-loaded
- FIG. 6 shows a control device according to a further exemplary embodiment of the invention. This corresponds identically to the control device explained in connection with FIGS. 5a, 5b, 5c, 5d, except that instead of the lower damping elements used there (ie the elastomers 69f, 69g, 69h , 69i) a damping piston 69a and a rubber stop 69e are used as damping elements (as well as a spacer 69b and a valve 69d).
- the function and design of the floating piston 69a, the rubber stop 69e, the spacer 69b and the valve 69d are identical to the function and design of the corresponding components explained in connection with FIG. 2a.
- FIG. 8 shows a bicycle with a frame 1, which has a longitudinal rod 2, a seat rod 3 and a connecting rod 4.
- a steering head bearing 5 is provided, in which one end of a front fork 6 or one with it connected handlebar stem 7 is mounted on which a handlebar 8 is mounted.
- the front fork 6 has two fork legs (of which only the fork leg shown in the drawing in the front can be seen). As explained in more detail below, each fork leg is built by a piston-cylinder arrangement 9
- a fork with only one fork leg can also be provided.
- a front wheel 11 is rotatably mounted
- a first pressure center line 12 and a second pressure center line 13 lead from the piston-cylinder arrangement 9 to a second piston / cylinder arrangement 14, a shut-off valve 15 being provided in the first pressure center line 13. No shut-off valve is provided in the second pressure line 13.
- a housing end 17 of the second piston / cylinder assembly 14 is connected to the connecting rod 4 via a swivel joint 18.
- a piston rod 19 of the second piston / cylinder arrangement (and its rear end, which is on the right in the drawing) is connected to a spring element 20, here: a spiral spring.
- One end 21 of the spring element 20 is connected via a swivel joint 22 to a rear wheel swing arm 23, which here consists of three interconnected rods 24, 25, 26 and which is provided for rotatably mounting a rear wheel 27
- the rear wheel swing arm 23 is connected via a swivel joint 28 to the seat post 3, at the free end of which a saddle 3a is arranged.
- the swivel joint 28 is here arranged above a bottom bracket 29.
- the swivel bearing 28 can also be arranged in such a way that its swivel axis coincides with the axis of rotation of the bottom bracket 29 merges
- the piston / cylinder arrangement 9 on the front wheel 11 has a pneumatic cylinder 30a which is mounted at its lower end via a screw connection to a guide tube 37a.
- a tube 37b and a piston rod 32a connected to it are attached to the handlebar stem 7
- a piston 31a is arranged, which is slidably guided in the pneumatic cylinder 30a.
- the tube 37b and the piston rod 32a are opposite to the guide tube 37a and the pneumatic cylinder 30a in the longitudinal direction, ie slidable in the direction of a arrow A.
- the first cylinder space 34a i.e. the "plus chamber” is built by the pneumatic cylinder 30a.
- the second cylinder space 35a i.e. the "minus chamber” is an annular cylinder space which is compressed by the pneumatic cylinder 30a, the piston rod 32a and the piston 31a.
- the lower outer surface of the piston 31a which delimits the first cylinder space 34a upwards, is larger than the ring-shaped upper outer surface of the piston 31a, which delimits the second cylinder space 35a downwards.
- a bore runs centrally in the longitudinal direction through the piston 31a and opens into a metal tube 51 which is guided upward in the longitudinal direction through the piston rod 32a up to the handlebar stem 7 and is connected at the upper end to the D cl ⁇ nitteUeitung 12 (this is thus - Connected to the first cylinder chamber 34a via the metal tube 51 and the above-mentioned longitudinal bore.
- a spring element 33a is located at the lower end of the pneumatic cylinder 30a.
- a float element 38a is arranged above the spring element 33a and seals the first cylinder space 34a from the cylinder space in which the spring element 33a is located.
- no float element 38a is provided; furthermore, as float element 38a e.g. an O-ring can also be provided, which is not (or not completely) sealed with respect to the cylinder space in which the spring element 33a is located
- the second KoU) en- / ZyHnderan Extract 14 comprises a cylinder housing 38, in the longitudinal direction of the piston rod 19 is guided.
- the piston rod has a pneumatic piston which the cylinder housing 14 into a first (front, ie in the drawing on the left) pneumatic cylinder chamber 41 , and a second (rear, ie in the drawing to the right) pneumatic cylinder chamber 42 is divided.
- the first pneumatic cylinder chamber 41 is referred to here as a "plus chamber”
- the second pneumatic cylinder chamber 42 is referred to as a "minus jammer”.
- the "minus chamber” 42 is a annular cylinder space, which is built through the cylinder housing 38, the piston rod 19 and the pneumatic piston.
- the "plus chamber” 41 has a piston area larger by the cross-sectional area of the piston rod 19 than the "minus chamber” 42.
- the first pneumatic cylinder chamber 41 is with the first clutch center line 12, and the second pneumatic cylinder chamber 42 is with the second pressure center line 13 connected.
- the pressure lines 12 and 13 can be connected to one another via a bypass line 12 ', into which a shut-off valve 15' is inserted. The operation of the control devices is explained in more detail below. In a first step, air is pumped into the control devices.
- valves 15, 15 are opened and then, for example, via a valve attached to the cylinder housing 38 (not shown here) by means of an air pump Air is pumped into the "plus chamber" 41 of the second piston / cylinder arrangement 14 (as an alternative, for example, especially if the float element 38a is not (or not completely) sealed with respect to the cylinder space in which the spring element 33a is located, below a valve can be attached to the pneumatic cylinder 30a, via which air - past the float element 38a and the spring element 33a - air can be pumped into the "positive elements" 34a.)
- the user of the bicycle can e.g. a pressure can be exerted on the saddle 3a from above (or alternatively, for example, pressed on the handlebar 8 from above).
- the piston rod 19 is moved away from the seat post 3 (or alternatively to the seat post 3 bin).
- the pneumatic cylinder 30a of the first piston / cylinder arrangement 9 is pressed down, whereby air e.g. flows from the "minus chamber” 35a of the first piston / cylinder arrangement 9 via the pressure center line 13 into the "minus chamber” 42 of the second piston / cylinder arrangement 14
- valve 15 ' is first closed, and then valve 15 - preferably when pressing the control devices for the first time, as long as pressure is exerted on the saddle 3a from above (or from above on the Handlebar 8) until the pneumatic cylinder 30a and the piston Rod 19 has reached its respective final control (ie until it has shifted to its respective stop).
- valve 15 of the first pressure center line 12 is opened again, and then e.g. in that the user of the bicycle presses on the handlebar 8 (or alternatively on the saddle 3a) from above the rear wheel 27 again “extended” and the front wheel 11 "retracted” again (or alternatively the rear wheel 27 - still further - “retracted” and the front wheel 11 - even further - "extended”).
- valve 15 is preferably designed in the form of an easily actuated toggle switch
- the "retracted" control of the rear wheel 27 or the “extended” control of the front wheel 11 is particularly well suited for driving downhill, and the "extended" control of the rear wheel 27 or the “retracted” control of the front wheel 11 is particularly suitable for driving uphill ,
- FIG. 9 shows a perspective illustration of a steering head bearing system 5 of a bicycle from the right-hand side.
- the steering head bearing system 5 can e.g. at the common end of a longitudinal rod extending from the steering head bearing system 5 in the horizontal direction backwards to a saddle of the bicycle (not shown here) and an inclined rod extending from the steering head bearing system 5 obliquely backwards-downwards in the direction of a bicycle bottom bracket (here not represented).
- two fork legs 9a, 9b of a front fork of the bicycle, and a handlebar stem 7 are mounted on the steering head bearing system 5.
- a pneumatic, height-adjustable piston and cylinder arrangement on the lower end of which a front wheel of the bicycle is mounted
- the piston / cylinder arrangement can, for example, have a pneumatic cylinder at the bottom, which is mounted at its lower end via a screw connection to a guide tube 37a surrounding the pneumatic cylinder.
- / Cylinder arrangement have a piston rod at the top, which is attached at its upper end to a tube 37b surrounding the piston rod.
- the piston rod has at its lower end a piston which is slidably guided in the pneumatic cylinder.
- the piston rod and the tube 37b are opposite the guide tube 37a and the pneumatic cylinder in the direction of a pipe A up or down.
- the tube 37b is fastened to the steering head bearing system 5, with hooves of an upper and a lower fork-bridge element 10a, 10b.
- the lower fork-bridge element 10b has two tubular clamping elements 11a, 11b, through which the corresponding tube 37b of the respective fork leg 9a, 9b is guided
- each clamping element 11a, 11b is provided with a slot running completely in the longitudinal direction through the respective clamping element 11a, 11b. This makes it possible to compress the respective clamping element 11a, 11b (ie to reduce its diameter), so that according to FIG. 9 the corresponding tube 37b of the respective fork leg 9a, 9b is then firmly enclosed by the respective clamping element 11a, 11b, and thus the respective one
- the fork leg 9a, 9b can no longer be displaced in the direction of the arrow A upwards or downwards relative to the fork bridge element 10b.
- each fork-bridge element 10a, 10b has two bores 12a, 12b, 12c, 12d which run from top to bottom through the respective fork-bridge element 10a, 10b, one of which have essentially a circular cross-section.
- the bores 12a, 12b of the lower fork-bridge element 10b one of the above.
- Clamping elements 11a, 11b added, and in the bores 12c, 12d of the upper Gabd bridge element 10b - dkekt - the corresponding tube 37b of the respective Gabdbeins 9a, 9b.
- each borehole 12a, 12b, 12c, 12d there is a back-to-back or right-up to the rear-right or bin-, which runs completely from top to bottom through the respective Gabd bridge element 10a, 10b. left side wall of the respective Gabd bridge element 10a, 10b.
- the protection is narrowed - for example by means of a screw, which is screwed into a threaded bore 13a, 13b extending from the Gabd bridge element south wall (the threaded bore 13a, 13b runs approximately perpendicular to the SchHtz and cuts it) - the diameter of the respective bore 12a, 12b, 12c, 12 &
- corresponding clamping elements 11a, 11b can be provided in the upper Gabd bridge element 10a, corresponding to the lower Gabd bridge element 10b, or e.g. only on the upper Gabd bridge element 10a, but not on the lower Gabd bridge element 10b the above.
- Corresponding clamping elements 11a, 11b can be arranged, or the use of clamping elements can be dispensed with both in the lower and in the upper Gabd bridge element 10a, 10b.
- a steering tube 14 extends between the upper and lower Gabd bridge elements 10a, 10b in the vertical direction.
- a second tube 15 is arranged inside the steering tube 14, which tube extends outwards at the bottom Approach 15a has the second tube 15 inserted from below into a further hole 12e running from bottom to top through the lower fork-bridge element 10b, and fitted into the hole 12e, the shoulder 15a being on the second Tube 15 contacts a correspondingly shaped recess shaped like a step-like ring from the lower fork-bridge element 10b
- first ball bearing 16a Arranged around the second tube 15 is a first ball bearing 16a, which adjoins a first bearing shell 17a upwards, obliquely-upwards and outwards, and adjoins downwards-inwards (to a lower, beveled KugeUager section) to a rg-shaped, beveled approach, which extends upwards from the lower Gabd bridge element 10b.
- the first ball bearing 16a and the first Bearing shell 17a (and the surrounding tefle) are constructed and arranged correspondingly mirror-inverted, identical to a second ball bearing 16b and a second bearing shell 17b, the construction and arrangement of which will be explained in more detail below in connection with FIG. 11b.
- angular contact ball bearing is used as the first and second ball bearing 16a, 16b in the present exemplary embodiment.
- RoUenkugeUager can also be used, or fix other ball bearings that can absorb axial loads.
- a third tube 18 is arranged at the top in the steering tube 14, which has an outwardly extending extension 18a at the top.
- the third tube 18 is from top to bottom through the upper fork Bridge element 10a inserted through bores 12f, and screwed at the upper end of the second tube 15 into a corresponding internal thread 19 in the second tube 15.
- the projection 18a on the third tube 18 becomes g-shaped against a correspondingly shaped step-like configured recess pressed out of the upper fork-bridge element 10a
- the second bearing shell 17b is fitted into the steering tube 14, the upper surface of the steering tube 14 engaging with the lower surface of a horizontally outwardly extending first section 19a of the second bearing shell 17b, and the inner surface of the steering tube 14 with an outer surface of one second section of the second bearing shell 17b, which extends vertically downwards from an inner end of the first bearing shell section.
- a third section 19b of the bearing shell extends obliquely inward downwards, and from lower end of the third bearing shell section 19b from horizontally inward a fourth bearing shell section 19c.
- annular circumferential sealing element with a T-shaped cross section, with an upwardly extending portion of the sealing element in an annular recess is arranged on the underside of the upper fork-bridge element 10a, and a downwardly extending section of the sealing element in an annular recess on the top of the first ab- Section 19a of the second bearing shell 17b.
- a sealing ring with a circular cross-section can be used, for example, or a sealing demeanor of a slightly different design
- the twelfth ball bearing 16b is arranged around the third tube 18.
- a vertically extending section of the outer outside of the second ball bearing 16b engages with the inside of the second section of the second bearing shell 17b, and an obliquely after section of the outer outer ends of the second ball bearing 16a which runs from the inside to the inner end of the third section 19b of the second bearing shell 17b.
- the underside of the second ball bearing 16b engages with the upper surface of the fourth section 19c of the second bearing shell 17b.
- an annular extension 20 which is guided along the outside of the third tube 18, extends downward from the underside of the upper Gabd bridge element 10a.
- Approach 20 is bevelled downwards and outwards.
- the inside of the second ball bearing 16b is bevelled upwards and inwards.
- the corresponding, bevelled boundary surface of the second ball bearing 16b stands with the correspondingly bevelled boundary surface of the Neck 20 of the upper fork bridge element 10a engaged.
- a clamping cone 21 is inserted from above into the third tube 18, the outer diameter of which essentially corresponds to the inner diameter of the third tube 18.
- a shoulder 21a extends from the upper end of the clamping cone 21 outside, the bottom surface of which engages with the annular upper surface of the third tube 18 and a corresponding section of the above-mentioned stepped-like recess from the upper fork-bridge element 10a
- the third tube 18 is provided at the top with two opposing, vertically downward protectors from the upper end of the third tube 18.
- the contactors perform a double function: on the one hand, they serve as a contact surface for a tool (for example a coin) suitable for screwing in the third tube 18.
- the third tube 18 is expanded by corresponding actuation of the clamping cone 21, so that its outer surface is pressed against the inner surface of the bore 12f of the upper fork-bridge element 10a (and thus the Gabd-bridge element 10a against the twelfth ball bearing 16b , the second ball bearing 16b against the second bearing shell 17b, and the second bearing shell 17b against the steering tube 14).
- a handlebar stem 7 is mounted on the top of the upper Gabd bridge element 10a.
- bores 12c, 12d are provided on the inside of the (relatively large) holes for receiving the tubes 37b
- a first or twelfth set of (relatively small) threaded holes are provided in a straight row.
- the threaded bores of the two threaded bores run vertically downward from the top of the upper Gabd bridge element 10a.
- the first and twelfth row of tapped holes are mutually related, the first tapped row having the same number of tapped holes as the second tapped row (e.g. three, four or five tapped holes).
- Corresponding (first) threaded bores of the first and second threaded bore rows each have the same distance from one another corresponding (second) threaded bores of the first and second threaded bore series.
- the corresponding (second) threaded holes of the first and second threaded hole rows each have the same distance from one another corresponding (third) threaded holes of the first and second threaded hole rows, etc.
- Corresponding tubular elements 22 extend horizontally inwards from the semicircular projections 21 fastened to the Gabd bridge element 10a (FIG. 9).
- Corresponding intermediate pieces 24 are mounted on the tubular elements 22 in a manner rotatable (initially) around the corresponding central axes of the tubular members 22.
- the intermediate pieces 24 each have a first, horizontal bore into which the corresponding tubular element 22 is inserted
- Each intermediate piece 24 is in addition to the first hole in each case a second, horizontal hole 23 into which a rod of the actual handlebar of the bicycle can be inserted in a (initially) rotatable manner.
- the handlebar By turning the intermediate pieces 24 around the central axis of the tubular elements 22, and / or by rotating the handlebar around the central axis of the bores 23, the handlebar can be positioned in the desired angular position (as well as by appropriate mounting, the approaches 21 either wdter vome, or back again).
- a protection (somewhat from the left to the right through the intermediate piece 24) extends (somewhat in the direction of the first bore) to here, the outer wall of the intermediate piece 24, which lies obliquely and downward.
- a protection (somewhat from left to right through the intermediate piece 24) runs (somewhat in the direction of the second hole) up to the outer wall of the intermediate piece 24, which is inclined at the top here.
- a thread bore 25a, 25b runs approximately perpendicular to the shooters, which is damaging. If a screw is screwed into the threaded bores, the protection extending from the second horizontal bore 23 and the protection extending from the first horizontal bore can be narrowed - in this way the diameter of the first and the second bore 23 is reduced As a result, both the respective intermediate piece 24 are fixed in relation to the respective tubular element 22, and the rod of the handlebar is fixed in relation to the respective intermediate piece 24.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Steering Devices For Bicycles And Motorcycles (AREA)
- Fluid-Damping Devices (AREA)
- Axle Suspensions And Sidecars For Cycles (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10292917T DE10292917B4 (de) | 2001-07-06 | 2002-06-04 | Fahrrad |
US10/483,158 US7182358B2 (en) | 2001-07-06 | 2002-06-04 | Bicycle |
US11/429,526 US7255359B2 (en) | 2001-07-06 | 2006-05-05 | Bicycle |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20111247.7 | 2001-07-06 | ||
DE20111247U DE20111247U1 (de) | 2001-07-06 | 2001-07-06 | Fahrrad-Verstelleinrichtung |
DE20202656U DE20202656U1 (de) | 2002-02-20 | 2002-02-20 | Fahrrad |
DE20202656.6 | 2002-02-20 | ||
DE20205643U DE20205643U1 (de) | 2002-04-11 | 2002-04-11 | Fahrrad-Lenkkopflagersystem, sowie Fahrrad mit Fahrrad-Lenkkopflagersystem |
DE20205643.0 | 2002-04-11 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/429,526 Division US7255359B2 (en) | 2001-07-06 | 2006-05-05 | Bicycle |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2003004344A2 true WO2003004344A2 (de) | 2003-01-16 |
WO2003004344A3 WO2003004344A3 (de) | 2003-05-01 |
Family
ID=27219591
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/006133 WO2003004344A2 (de) | 2001-07-06 | 2002-06-04 | Fahrrad |
Country Status (3)
Country | Link |
---|---|
US (2) | US7182358B2 (de) |
DE (1) | DE10292917B4 (de) |
WO (1) | WO2003004344A2 (de) |
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DE102006009677A1 (de) * | 2006-03-02 | 2007-09-06 | Gustav Magenwirth Gmbh & Co. Kg | Teleskopfedergabel |
DE202020103887U1 (de) | 2020-07-03 | 2021-10-06 | Zeg Zweirad-Einkaufs-Genossenschaft Eg | Lenkanordnung für ein zwei- oder dreirädriges Fahrzeug |
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DE20005224U1 (de) * | 2000-03-20 | 2001-07-05 | Albrecht, Stephan, 83627 Warngau | Fahrrad |
TW576900B (en) * | 2000-05-22 | 2004-02-21 | Kayaba Industry Co Ltd | Air spring |
US6712541B1 (en) * | 2000-12-05 | 2004-03-30 | Research Group Three Inc. | Multi-post shock absorber clamp system |
US6592136B2 (en) * | 2001-07-02 | 2003-07-15 | Fox Factory, Inc. | Bicycle fork cartridge assembly |
US6748821B1 (en) * | 2002-02-28 | 2004-06-15 | John C. Smith | Extendable handle bar assembly |
US6669219B2 (en) * | 2002-04-10 | 2003-12-30 | Maverick American Llc | Telescoping suspension fork having a quick release wheel axle clamp |
-
2002
- 2002-06-04 US US10/483,158 patent/US7182358B2/en not_active Expired - Lifetime
- 2002-06-04 WO PCT/EP2002/006133 patent/WO2003004344A2/de not_active Application Discontinuation
- 2002-06-04 DE DE10292917T patent/DE10292917B4/de not_active Expired - Fee Related
-
2006
- 2006-05-05 US US11/429,526 patent/US7255359B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001070563A1 (de) | 2000-03-20 | 2001-09-27 | Andreas Felsl | Fahrrad |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006009677A1 (de) * | 2006-03-02 | 2007-09-06 | Gustav Magenwirth Gmbh & Co. Kg | Teleskopfedergabel |
DE202020103887U1 (de) | 2020-07-03 | 2021-10-06 | Zeg Zweirad-Einkaufs-Genossenschaft Eg | Lenkanordnung für ein zwei- oder dreirädriges Fahrzeug |
Also Published As
Publication number | Publication date |
---|---|
DE10292917B4 (de) | 2010-04-22 |
US7255359B2 (en) | 2007-08-14 |
DE10292917D2 (de) | 2004-07-22 |
US20040232650A1 (en) | 2004-11-25 |
US20060202442A1 (en) | 2006-09-14 |
WO2003004344A3 (de) | 2003-05-01 |
US7182358B2 (en) | 2007-02-27 |
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