WO2000029279A1 - Bicyclette et moyens de fixation du guidon - Google Patents

Bicyclette et moyens de fixation du guidon Download PDF

Info

Publication number
WO2000029279A1
WO2000029279A1 PCT/NL1999/000706 NL9900706W WO0029279A1 WO 2000029279 A1 WO2000029279 A1 WO 2000029279A1 NL 9900706 W NL9900706 W NL 9900706W WO 0029279 A1 WO0029279 A1 WO 0029279A1
Authority
WO
WIPO (PCT)
Prior art keywords
handlebar
stem
cycle
clamping
coupling
Prior art date
Application number
PCT/NL1999/000706
Other languages
English (en)
Other versions
WO2000029279A8 (fr
Inventor
Lucas Leonardus Paulus Maria Meuwese
Original Assignee
Meuwese Lucas Leonardus Paulus
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Meuwese Lucas Leonardus Paulus filed Critical Meuwese Lucas Leonardus Paulus
Priority to EP99956354A priority Critical patent/EP1131243A1/fr
Priority to AU12978/00A priority patent/AU1297800A/en
Publication of WO2000029279A1 publication Critical patent/WO2000029279A1/fr
Publication of WO2000029279A8 publication Critical patent/WO2000029279A8/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62H—CYCLE STANDS; SUPPORTS OR HOLDERS FOR PARKING OR STORING CYCLES; APPLIANCES PREVENTING OR INDICATING UNAUTHORIZED USE OR THEFT OF CYCLES; LOCKS INTEGRAL WITH CYCLES; DEVICES FOR LEARNING TO RIDE CYCLES
    • B62H3/00—Separate supports or holders for parking or storing cycles
    • B62H3/08—Separate supports or holders for parking or storing cycles involving recesses or channelled rails for embracing the bottom part of a 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
    • B62K15/00—Collapsible or foldable cycles
    • B62K15/006—Collapsible or foldable cycles the frame being foldable
    • 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

Definitions

  • the present invention relates to a cycle comprising a frame with a steering tube, a fork stem received rotatably in the steering tube, a handlebar stem received in the fork stem, a handlebar connected to the handlebar stem and clamping means arranged between the handlebar and the fork stem for clamping the handlebar stem in the fork stem, said clamping means being mounted on a rod running through the handlebar stem and the handlebar.
  • a cycle is generally known.
  • the fork stem forms a part of the front fork to which the front wheel of the cycle is fixed. Because the handlebar stem is clamped in the fork stem and the fork stem is received rotatably in the steering tube of the frame, the front wheel can be rotated together with turning of the handlebar relative to the frame.
  • the object of the present invention is to provide a cycle wherein the above stated drawbacks are obviated.
  • the cycle according to the invention has the feature that means for coupling the handlebar stem to the fork stem are arranged between the clamping means and the handlebar stem. It is hereby possible to rotate the handlebar relative to the fork stem, and therefore the front wheel, while the handlebar still remains connected to the fork stem due to the clamping means.
  • the coupling means can be operated by operating means arranged on the end of the rod remote from the clamping means.
  • These operating means can for instance be formed by a lever or a rotary knob.
  • a lever When the coupling means are operated using a lever, less force need be applied than when a rotary knob is used.
  • a rotary knob has the advantage that it does not get in the way during cycling and that the coupling means cannot be operated accidentally by the rider coming up against them with his knee during cycling, as can be the case with a lever.
  • the coupling means In order to protect the coupling means against outside influences they are preferably arranged in the fork stem.
  • the coupling means are formed by two coupling members, wherein the one member is provided with at least one recess and the other member is provided with at least one complementary protrusion. It is hereby possible to fix the handlebar in a rotated position on the cycle.
  • Four recesses and four complementary protrusions are preferably arranged spread over the periphery of the members.
  • the coupling means can hereby be arranged in different ways between the clamping means and the handlebar stem, wherein the handlebar can in any case be rotated a quarter-turn to the left and right and fixed.
  • the or each recess and the or each protrusion is preferably provided with oblique sides so that they can come into contact with each other easily.
  • a spring is arranged between the coupling members .
  • the rod is provided with screw thread and the clamping means are formed by a first clamping member with an oblique upper end arranged on the lower end of the rod, a second clamping member with an oblique lower end and a screw member co-acting with the rod for screwing the two clamping members against each other with the oblique ends.
  • a clamping connection between handlebar stem and fork stem is durable.
  • the screw member the clamping action of the connection can be temporarily released to adjust the height of the handlebar and/or align it relative to the frame.
  • a spacer sleeve is preferably arranged between the screw member and the clamping members, so that these latter can be tightened and loosened in simple manner from outside without the fork stem herein getting in the way.
  • the second clamping member is formed by one of the two coupling members.
  • the coupling means can hereby be arranged as deeply as possible in the fork stem and the handlebar stem can be placed as deeply as possible into the stem, which enhances the stability of the handlebar.
  • the cycle comprises a handlebar stem, wherein the lower end thereof is oblique
  • the coupling member other than the above stated comprises an oblique upper end for co-action with the oblique lower end of the handlebar stem.
  • no changes have to be made to the handlebar stem to enable rotation of the handlebar.
  • the invention further relates to an assembly for connecting a handlebar to a fork stem in order to obtain a cycle as claimed in any of the foregoing claims.
  • the invention will be further elucidated with reference to the annexed drawings.
  • Fig. 1 shows three cycles known from the prior art parked in a first cycle rack
  • Fig. 2 shows three cycles known from the prior art parked in a second cycle rack
  • Fig. 3 shows three cycles according to the present invention in a third cycle rack
  • Fig. 4 shows a detail view of a cycle according to a first embodiment of the invention
  • Fig. 5 shows an assembly with a part of the handlebar with handlebar stem, which assembly serves to connect a handlebar to a fork stem in order to obtain the cycle of fig. 4 and which is partly exploded in axial direction;
  • Fig. 6 shows the assembly of fig. 5 in mounted position
  • Fig. 7 shows an assembly with a part of the handlebar with handlebar stem, which assembly serves to connect a handlebar to a fork stem in order to obtain a cycle according to a second embodiment.
  • Fig. 1 shows three cycles known from the prior art, wherein the two outer cycles are arranged with their front wheel 1 in a bracket 2. Brackets 2 are located at such a mutual distance a and the cycles have such a wide handlebar 3 that it is not possible to park a third cycle between the two other cycles.
  • Fig. 2 shows a second cycle stand wherein it is possible to park three cycles adjacently of each other.
  • the distance b corresponds with the maximum width of the cycle, i.e. the width of handlebar 3.
  • Fig. 3 shows a third cycle stand wherein three cycles according to the present invention can be parked adjacently of each other (in contrast to the situation of fig. 1) .
  • the cycles are adapted according to the invention so that it is possible to rotate handlebar 3 relative to front wheel 1. Because each handlebar is placed parallel to the frame 4 of the cycle, the maximum width of the cycle is reduced. It is even possible hereby, as shown in fig. 3, to reduce the distance c relative to the distance a of fig. 1. It is thus possible according to the invention to park more cycles on the same surface area when compared to the situations shown in fig. 1 and 2.
  • Fig. 4 shows a detail view of a cycle according to a first embodiment of the invention.
  • the cycle comprises a frame 4 with a steering tube 5 and a fork stem 6 which is received rotatably in steering tube 5 and forms a part of a front fork 7.
  • Front wheel 1 is mounted on front fork 7.
  • a handlebar stem 8 is received in the fork stem 6 and handlebar 3 is connected to handlebar stem 8.
  • Clamping means 9 are arranged between handlebar 3 and fork stem 6 for clamping handlebar stem 8 in fork stem 6, which clamping means 9 are fixed to a rod 10 running through handlebar stem 8 and handlebar 3.
  • Means 11 for coupling handlebar stem 8 to fork stem 6 are arranged between clamping means 9 and handlebar stem 8.
  • Coupling means 11 can be operated from outside by a rotary knob 12 arranged on the end of rod 10 remote from clamping means 9.
  • coupling means 11 are situated in fork stem 6.
  • Fig. 5 shows an assembly with a part of handlebar 3 and handlebar stem 8.
  • the assembly serves to connect handlebar 3 to fork stem 6 (not shown in fig. 5) in order to obtain the cycle of fig. 4.
  • the assembly is partly exploded in axial direction.
  • Coupling means 11 are formed in this first embodiment by two coupling members 13,14, wherein the one member 13 is provided with four recesses 15 and the other member 14 is provided with two complementary protrusions 16.
  • Recesses 15 and protrusions 16 are arranged spread over the periphery of members 13,14. Recesses 15 and protrusions 16 are further provided with oblique sides.
  • a spring 17 is arranged between coupling members 13,14.
  • the upper coupling member 14 comprises an oblique upper end which co-acts with an oblique lower end of handlebar stem 8.
  • the rod 10 is provided with screw thread.
  • Clamping means 9 are formed by a first clamping member 18 with oblique upper end arranged on the lower end of rod 10, a second clamping member 19 with an oblique lower end and a screw member 20 co-acting with rod 10 for screwing the two clamping members 18 , 19 against each other with the oblique ends.
  • the second clamping member 19 is formed by the lower coupling member 13.
  • a spacer sleeve 21 is arranged between screw member 20 and clamping members 18,19.
  • the spacer sleeve engages with its end remote from screw member 20 on a recess 22 arranged in second clamping member 19.
  • the assembly is arranged in fork stem 6 and clamped therein by tightening screw member 20.
  • screw member 20 is tightened the spacer sleeve 21 is carried downward. Spacer sleeve 21 then presses second clamping member 19 against first clamping member 18. Owing to the oblique edges thereof, the two clamping members 18,19 will slide laterally relative to each other during tightening, so that clamping members 18,19 clamp themselves into fork stem 6.
  • Handlebar 3 with handlebar stem 8 is then arranged over rod 10 such that the rod protrudes with its top end out of the handlebar 3.
  • FIG. 7 a second embodiment of the assembly according to the present invention.
  • the coupling means 11 are not arranged in fork stem 6.
  • the handlebar stem is divided into two parts, wherein the upper part 8a forms the actual handlebar stem and the lower part 8b forms part of clamping means 9.
  • the upper handlebar stem part 8a is connected to handlebar 3.
  • Mounted on upper handlebar stem part 8a is a first coupling member 24 which encloses the ends of the upper and lower handlebar stem part 8a respectively 8b.
  • a second coupling member 25 which extends through the first coupling member 24 into the upper handlebar stem part 8a.
  • the second coupling member 25 is preferably mounted on the lower handlebar stem part 8b so that it cannot rotate relative to the lower handlebar stem part 8b.
  • Coupling members 24, 25 are once again provided respectively with recesses 15 and protrusions 16.
  • a wedge-shaped clamping member 26 is arranged on the bottom end of rod 10.
  • Clamping means 9 are formed in this embodiment by the wedge-shaped clamping member 26, lower handlebar stem part 8b, second coupling member 25 and screw member 20 which engages on the top of second coupling member 25.
  • screw member 20 is tightened the lower handlebar stem part 8b is pressed over the wedge-shaped clamping member 26 via the second coupling member 25.
  • the clamping connection between handlebar stem 8a and fork stem 6 is hereby obtained.
  • Coupling means 11 are operated in the same way as described above.
  • the advantage of the assembly according to the invention is that it can be fitted to existing cycles as well as to new cycles.
  • the assembly fits on almost any cycle. Because the cycle is not permanently changed, the assembly could even be removed again.
  • Rotation of the handlebar can be realized in easy and rapid manner without external tools having to be used. Because of the recesses and protrusions the rotary knob 12 need only be tightened with manual force to bring about the coupling between handlebar stem and fork stem. Another advantage of the recesses and protrusions is that the coupling is self-aligning: the handlebar will always be coupled in the aligned position.
  • a lever or a wing nut can for instance also be used to operate the coupling means.
  • the operating means can be given a design appropriate to the model of the relevant cycle.
  • the operating means can optionally be provided with a lock or the like to prevent an unauthorized person removing the assembly from the cycle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)

Abstract

Ce cycle comprend un cadre (4) présentant un tube de direction (5), une fourche (6) montée rotative dans le tube de direction (5), une potence (8) de guidon logée dans la fourche (6), un guidon (3) relié à la potence (8), des moyens de serrage (9) disposés entre le guidon (3) et la fourche (6) et destinés à serrer la potence (8) dans la fourche (6), ces moyens (9) étant montés sur une tige (10) s'étendant dans la potence (8) et le guidon (3). Ce cycle est caractérisé par des moyens de couplage (11) de la potence (8) et de la fourche (6), disposés entre les moyens de serrage (9) et la potence (8), de façon que l'on puisse, sans forcer, tourner le guidon (3) par rapport à la roue avant (1).
PCT/NL1999/000706 1998-11-16 1999-11-16 Bicyclette et moyens de fixation du guidon WO2000029279A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP99956354A EP1131243A1 (fr) 1998-11-16 1999-11-16 Bicyclette
AU12978/00A AU1297800A (en) 1998-11-16 1999-11-16 Cycle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1010566 1998-11-16
NL1010566A NL1010566C2 (nl) 1998-11-16 1998-11-16 Fiets.

Publications (2)

Publication Number Publication Date
WO2000029279A1 true WO2000029279A1 (fr) 2000-05-25
WO2000029279A8 WO2000029279A8 (fr) 2000-08-24

Family

ID=19768149

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL1999/000706 WO2000029279A1 (fr) 1998-11-16 1999-11-16 Bicyclette et moyens de fixation du guidon

Country Status (4)

Country Link
EP (1) EP1131243A1 (fr)
AU (1) AU1297800A (fr)
NL (1) NL1010566C2 (fr)
WO (1) WO2000029279A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2384467A (en) * 2002-01-21 2003-07-30 Ashley Edward Evans Handlebar mounting for a bicycle
WO2010106328A1 (fr) 2009-03-19 2010-09-23 Alan Brian Mclaughlin Dispositif de montage pour monter un guidon sur une tige de guidon d'une bicyclette
WO2011007054A1 (fr) * 2009-07-16 2011-01-20 Bike Expand Dispositif d'accouplement et de desaccouplement de la direction d'un cycle ou analogue
US9889904B1 (en) * 2015-06-25 2018-02-13 Terence Gregory Blake Quick-assembly front end for bicycles
US11155318B2 (en) 2017-07-10 2021-10-26 Henry Chong Device for selective rotation of vehicular handlebar

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3633392A1 (de) * 1986-10-01 1988-04-14 Dieter Oelkers Vorrichtung zum befestigen eines lenkers an der lenksaeule eines fahrrades
DE4200042A1 (de) * 1991-01-23 1992-07-30 Eduard Weber Befestigungsvorrichtung fuer einen fahrradlenker

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3633392A1 (de) * 1986-10-01 1988-04-14 Dieter Oelkers Vorrichtung zum befestigen eines lenkers an der lenksaeule eines fahrrades
DE4200042A1 (de) * 1991-01-23 1992-07-30 Eduard Weber Befestigungsvorrichtung fuer einen fahrradlenker

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2384467A (en) * 2002-01-21 2003-07-30 Ashley Edward Evans Handlebar mounting for a bicycle
GB2384467B (en) * 2002-01-21 2004-09-01 Ashley Edward Evans Cycle safety handlebar
WO2010106328A1 (fr) 2009-03-19 2010-09-23 Alan Brian Mclaughlin Dispositif de montage pour monter un guidon sur une tige de guidon d'une bicyclette
WO2011007054A1 (fr) * 2009-07-16 2011-01-20 Bike Expand Dispositif d'accouplement et de desaccouplement de la direction d'un cycle ou analogue
FR2948089A1 (fr) * 2009-07-16 2011-01-21 Bike Expand Dispositif d'accouplement et de desaccouplement de la direction d'un cycle ou analogue
US9889904B1 (en) * 2015-06-25 2018-02-13 Terence Gregory Blake Quick-assembly front end for bicycles
US11155318B2 (en) 2017-07-10 2021-10-26 Henry Chong Device for selective rotation of vehicular handlebar

Also Published As

Publication number Publication date
NL1010566C2 (nl) 2000-05-17
AU1297800A (en) 2000-06-05
WO2000029279A8 (fr) 2000-08-24
EP1131243A1 (fr) 2001-09-12

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