WO2004113155A1 - Dispositif de pivotement - Google Patents

Dispositif de pivotement Download PDF

Info

Publication number
WO2004113155A1
WO2004113155A1 PCT/DE2004/001205 DE2004001205W WO2004113155A1 WO 2004113155 A1 WO2004113155 A1 WO 2004113155A1 DE 2004001205 W DE2004001205 W DE 2004001205W WO 2004113155 A1 WO2004113155 A1 WO 2004113155A1
Authority
WO
WIPO (PCT)
Prior art keywords
locking
coupling element
swivel device
handlebar
coupling
Prior art date
Application number
PCT/DE2004/001205
Other languages
German (de)
English (en)
Inventor
Stefan Reitz
Joachim Baur
Original Assignee
Stefan Reitz
Joachim Baur
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 Stefan Reitz, Joachim Baur filed Critical Stefan Reitz
Publication of WO2004113155A1 publication Critical patent/WO2004113155A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K21/00—Steering devices
    • B62K21/12—Handlebars; Handlebar stems
    • B62K21/16—Handlebars; Handlebar stems having adjustable parts therein

Definitions

  • the invention relates to a swivel device for a bicycle according to the preamble of patent claim 1.
  • Such a swiveling device can be used in particular for a bicycle with a handlebar whose steering tube is rotatably mounted in a control head tube of the frame.
  • the widest component in a bicycle is the handlebar, which is arranged transversely to the longitudinal direction of the bicycle.
  • the protrusion of the handlebar on both sides can prove to be a hindrance or disadvantage, particularly when transporting the bicycle.
  • the laterally protruding handlebar is just as disruptive when storing the bike in a basement, in a garage or in rooms with limited space.
  • the handlebars also interfere with the placement of the bicycle in public bicycle stands, so that it can often be observed that the bicycles cannot be arranged close to each other, but require a considerable amount of space.
  • foldable handlebars are known from the prior art. Such an embodiment is apparent from DE 100 31 853 AI.
  • a foldable handlebar has several individual joints, which can start to loosen in long-term operation due to the play occurring between the components and thus potentially pose a safety risk.
  • a swivel device for a bicycle with a handlebar is known, the handlebar head connecting the steering tube and the handlebar to each other consists of a plate attached to the upper end of the steering tube, on which another plate is rotatably attached, the one has an integral connection to the handlebar.
  • the handlebar and the upper and lower plates have mutually corresponding through bores into which a locking lever can engage in the intended positions of the handlebars.
  • This locking lever is part of a bracket in which the locking lever is securely received by means of a leaf spring against automatic release of the pivoting device.
  • a disadvantage of this solution is that it requires a relatively high structure in the central central region of the handlebar head and the handlebar head must be changed in a special way, so that no standard handlebar heads can be used here. Due to the high construction of the swivel device known from this publication, there is a risk of an accident which can lead to serious damage if the cyclist falls, particularly in the chest area. Since the locking lever engages in the through holes provided in the vertical direction and the direction of movement of the bicycle caused by vibrations is vertical while driving, especially when using a leaf spring to support the locking lever, no permanently secure connection can be guaranteed. This is true especially for bicycles that are used for example off-road, i.e. for mountain bikes. The complex structure in the area of the handlebar head also requires special manufacture of this swivel device, which increases the cost of a bicycle equipped with it.
  • the invention has for its object to develop a pivoting device for a bicycle, which is simple in structure and also allows pivoting of the handlebars to facilitate transportation and storage, without the need for additional tools.
  • the required security against automatic release of the swivel device must be guaranteed in any case.
  • the steering tube is divided transversely to its axial extent, the mutually facing ends of the steering tube each having a coupling element.
  • These coupling elements which are in contact with one another, form the swiveling device, a permanently secure connection being ensured via the locking device as long as the handlebar is not to be swiveled.
  • the locking device allows the coupling elements in contact with one another to be released easily, so that the handlebar can be rotated, for example, by 90 ° and thus occupies a position which corresponds approximately to the vehicle's longitudinal direction.
  • Such a pivoted handlebar no longer disturbs when the bicycle is accommodated in a stand or when it is fastened to the wall or when the bicycle needs to be transported.
  • a particular advantage of the solution according to the invention is that it can be incorporated into an already running series production without great effort or that there is the possibility of retrofitting such a swivel device on existing bicycles without great effort.
  • the coupling elements are preferably coupled to one another in at least two end positions referred to as locking positions. For this purpose they have corresponding surfaces.
  • the surfaces of the coupling members that are in contact with one another can consequently be both flat and have a different, complementary geometry, that is to say, for example, have a gearwheel geometry. It is only essential that they are to be brought into engagement with one another in the desired end positions which the handlebar should assume.
  • At least the second coupling element should be firmly connected to the upper end of the lower steering tube.
  • the first coupling element can be made rotatable in the circumferential direction of the steering tube.
  • the second coupling element has an annular flange on its inside facing the first coupling element, which flange flange is received in a corresponding cavity of the first coupling element when the first coupling element is attached.
  • the airing device can be designed in any way.
  • the only decisive factor is that it ensures a permanently fixed connection, which, however, can be detached if necessary without the aid of tools between the first and the second coupling element.
  • the locking device can have a lever mechanism, a clamping mechanism, a split pin, a locking pin, a steering wheel lock and or a thread or a bayonet lock. If a steering wheel lock is used as part of the locking device, the filling according to the invention can also serve as an anti-theft device for a bicycle, because it is conceivable that a bicycle handlebar rotated by 90 ° makes driving at least impossible if the bicycle is intended to be stolen.
  • a structurally particularly simple embodiment of a swivel device according to the invention can be seen in the fact that the locking device is designed as a lever mechanism with at least one locking lever arranged on the outside on the first coupling element and pivotable about a swivel axis.
  • the locking lever has an articulated connection to one, the first coupling element protruding locking pin, wherein the locking pin is slidably mounted in a through hole receiving this.
  • the at least one locking lever In order to prevent an undesired automatic release of the at least one locking lever from its locking position, it is fixed in the locking position, which can be done, for example, by means of a locking bracket, as will be explained again below, or by means of a locking member.
  • a very useful embodiment of the subject matter of the invention can consist in a simple swivel device.
  • This has a locking device which consists of a lever mechanism with two locking levers arranged on the outside of the first coupling element, each pivotable about a pivot axis, these locking levers having an articulated connection to one locking pin projecting through the first coupling element and the locking pins in one each Locking pin receiving through bore against the force of a spring supported in each through hole are slidably mounted.
  • the spring ensures that the locking lever is automatically returned to its original position.
  • the operator can pivot the locking levers about their pivot axis in a simple manner and without the aid of tools, so that the locking pins are disengaged and the handlebar can be pivoted. After the operator releases the locking lever, the locking pins, which are coupled to the locking levers, snap into the second locking position of the handlebar and thus fix it.
  • a release lock can also be provided.
  • This can consist, for example, of a locking bracket that must first be unlocked in order to then be able to operate the locking lever.
  • a device according to the invention can be used with simple means even for off-road bicycles that have to meet the highest safety requirements.
  • Another very simple form of a locking device can consist in the fact that the coupling elements are secured in their respective blocking position by a split pin penetrating both coupling elements.
  • the coupling elements are each provided with a through hole and the split pin is inserted from one side through both coupling elements.
  • the splinting on the opposite side should, however, be done in a way that is easy for the operator to release.
  • What is contemplated here is an elastic end piece of the split pin, which can be pressed together with a handle, so that the split pin can be removed from the through hole.
  • a locking device which removably fixes the coupling elements to one another by means of at least one securing pin.
  • the coupling elements are each provided with a through hole and the locking pin is inserted into both coupling elements from one side.
  • a handle can be provided on one side of the locking pin to facilitate handling.
  • the first coupling element can be displaced in the axial direction along the steering tube in order to turn the handlebar into one of its end positions after a locking position caused by a thread or a bayonet lock has been released.
  • the first coupling element could have an internal thread which can be screwed onto a corresponding external thread of the second coupling element. In combination with a slotted design of the steering tube, this would make it possible to implement a simple clamp connection which would allow the handlebars to be pivoted into the desired locking positions.
  • a similar design could of course also be achieved with a bayonet lock. After loosening the thread or the bayonet catch could the first coupling element is displaced in the axial direction along the steering tube, the control arm is brought into its second end position and then the first coupling element is brought back into engagement with the second coupling element.
  • end stops In any case, it makes sense to limit the positions that the handlebar may take by appropriate end stops.
  • These can be implemented in a simple manner by means of a groove made in one of the coupling elements, in which a pin of the other coupling element engages. This makes it possible, for example, to implement end stops with a pivoting angle of the handlebar of 90 °.
  • an auxiliary assembly geometry in the contact area between the first and second coupling elements has proven to be useful in the assembly of a swivel device according to the invention.
  • the swivel device is always assembled in the same way and incorrect assembly positions cannot occur.
  • a simple cam-groove connection or similar geometrical shapes can be used as the assembly aid geometry.
  • the swivel range of the handlebar is preferably only 90 ° according to the invention. A larger swivel angle is therefore not an advantage, because it does so
  • Brake lines of the bicycle or electrical lines that run along the handlebar could be damaged.
  • FIG. 1 a bicycle in a ready-to-drive position
  • FIG. 2 a bicycle with a handlebar twisted by 90 °
  • FIG. 3 shows a sectional view through part of the steering tube
  • FIG. 4 the first coupling element in section
  • FIG. 5 the section V-V from FIG. 4,
  • FIG. 6 a section through the second coupling element
  • FIG. 7 the section line VII-VII from FIG. 6,
  • Figure 8 another embodiment of an inventive
  • Figure 10 the coupling elements of a further simplified locking device in section.
  • FIGS. 3 to 7 show two possible embodiments of a swivel device for a bicycle according to the invention.
  • a first embodiment is shown in FIGS. 3 to 7 and a second embodiment is shown in FIG.
  • FIG. 1 first shows a bicycle in a conventional design.
  • This has a frame 4, which has a control head tube 3 in its front area equipped with the handlebar.
  • a steering tube 2 is rotatably mounted in a conventional manner, which has a clutch with the front wheel of the bicycle.
  • the upper end of the steering tube 2 is formed by a handlebar, which is arranged in the normal riding position of the bicycle at 90 ° to the longitudinal direction of the bicycle and thus extends far beyond the normal width of the bicycle on both sides.
  • FIG. 2 shows a bicycle with the same structure.
  • the handlebar 1 was shown rotated by 90 °.
  • the handlebar is approximately in the longitudinal direction of the bicycle.
  • the handlebar can at least between these two by 90 ° in each case positions offset from one another can be pivoted. Each end position of these two positions is called the locked position.
  • FIG. 3 shows a section and a section of a fastening option, as is usually used in bicycles, in order to arert the handlebar on the steering tube.
  • the lower part of the steering tube 2 near the wheel is provided with slots 26 into which a pulling wedge 27 engages from below.
  • This pull wedge 27 has an internal thread into which a clamping screw 25 is screwed.
  • the clamping screw 25 is supported at the other end with its screw head against an inner flange 28.
  • the wedge 27 is moved into or out of the steering tube 2 by a screwing movement.
  • FIG. 3 also shows the swivel device according to the invention.
  • the aforementioned inner flange 28 is formed here in a second coupling element 6.
  • the second coupling element 6 has an outer surface corresponding to a first coupling element 5, so that the first coupling element 5 and the second coupling element 6 can be fitted onto one another with a precise fit.
  • the first coupling element 5 is fastened to one end 2a of the steering tube 2, which is divided transversely to its axial longitudinal extent.
  • the second coupling element 6 has a fixed connection to the end 2b of the split steering tube 2.
  • a slide bearing 29 is also provided between the surfaces in contact with one another.
  • FIG. 4 shows a possible embodiment of a locking device 7 according to the invention.
  • the first coupling element 5 is shown in section. It has a cavity 20 which, in the assembled state of the coupling elements 5 and 6, receives an annular flange 8 of the second coupling element 6.
  • a locking pin 12 or 13 of the locking device 7 is received.
  • the locking pin 12 or 13 penetrates the through hole into the inner cavity 20 of the first coupling element 5.
  • the through hole has a spring 16 or 17, which is located on a shoulder of the through hole on the one hand and on the other hand on the locking pin 12 or 13 supports.
  • the locking pins 12, 13 are each connected to a locking lever 10 and 11, respectively.
  • This connection consists of a pivot axis 9 forming a joint.
  • FIGS. 5 to 7 show how end stops and safe guidance of the handlebar in its swivel range can be made possible in a simple manner.
  • a groove 22 is made in the second coupling element 6, in which a grub screw 24 engages.
  • the grub screw 24 is inserted with its external thread into an internal thread 23 of a further through bore of the first coupling element 5. It protrudes slightly through this through hole into the cavity 20 and thus engages with its tip in the groove 22 of the second coupling element 6.
  • the coupling elements can be guided and it is an end stop of the handlebar 1 which can be rotated by only 90 ° guaranteed.
  • FIG. 6 shows the recesses 18 and 19 on the second coupling element 6, in which the locking pins 12 and 13 of the locking device 7 engage in the respective locking positions.
  • a particularly simple embodiment of a locking device 7 for realizing the swiveling device according to the invention for a bicycle is shown in detail and in partial section in FIG.
  • a through hole is introduced both through the first coupling element 5 and through the second coupling element 6 in the overlapping body regions of the coupling elements.
  • a split pin 21 is inserted into this through hole from one side of the pivoting device.
  • the cotter pin 21 has an annular extension on one side, through which it can be inserted or removed in a simple manner, and an elastic section on the side opposite this annular part, which can be compressed in a simple manner and after penetration of the through hole automatically unfolded, so that a release lock is guaranteed.
  • the through hole is of course to be provided in the respective pivot positions of the handlebar in the first and second coupling elements 5 and 6, respectively, in order to ensure the corresponding handlebar positions.
  • FIG. 9 shows the coupling elements 5 and 6 of a swivel device, the locking device 7 of which consists of a lever mechanism with two locking levers 10 and 11, which are arranged on the outside of the first coupling element 5 and can be swiveled about a swivel axis 9.
  • the locking levers 10, 11 accordingly have an articulated connection to one locking pin 12 or 13, which projects through the first coupling element 5.
  • the locking pins 12, 13 are each slidably mounted in a through hole 14 or 15 receiving the locking pins 12, 13.
  • the locking levers 10, 11 can be fixed in their locking position, which is indicated here by a locking bracket 32 or 33, which is supported on a locking cam 34, 35, respectively.
  • FIG. 10 shows another very simple embodiment of a locking device 7 of a swivel device according to the invention.
  • the coupling member 5 also has a through hole 14 or 15 here.
  • Locking pins 30 and 31 are captively inserted into the through bores 14, 15, respectively.
  • a handle is attached at the outer free end of the locking pins 30, 31, a handle is attached for better handling.
  • the locking pins 30, 31 here have a tapered section on which the handle is provided at the end and a thickened section on the locking side. The transition between the sections ensures an end stop of the locking pins 12, 13 in the complementary through holes 14, 15.
  • the locking pins 12, 13 shown here as circular cylindrical can, however, also be designed spirally and guided in a correspondingly designed through hole 14, 15 or, in the simplest case, can be designed to be fixable by means of a threaded section, not shown here.

Landscapes

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

Abstract

L'invention concerne un dispositif de pivotement destiné à une bicyclette comprenant un guidon (1) dont la potence (2) est logée rotative dans un tube de direction (3) du cadre (4), un premier élément d'accouplement (5) et un deuxième élément d'accouplement (6) pouvant être verrouillés dans au moins deux positions l'un par rapport à l'autre au moyen d'un dispositif de blocage (7). L'invention est caractérisée en ce que le potence (2) est subdivisée perpendiculairement à son extension axiale et en ce que les extrémités (2a, 2b), orientées l'une vers l'autre, de la potence présentent chacune l'un des éléments d'accouplement (5, 6). Il est ainsi possible de faire pivoter le guidon d'une bicyclette sans avoir recours à un outil, par exemple pour permettre un rangement compact de la bicyclette.
PCT/DE2004/001205 2003-06-16 2004-06-14 Dispositif de pivotement WO2004113155A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003127343 DE10327343B4 (de) 2003-06-16 2003-06-16 Schwenkvorrichtung
DE10327343.3 2003-06-16

Publications (1)

Publication Number Publication Date
WO2004113155A1 true WO2004113155A1 (fr) 2004-12-29

Family

ID=33520677

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2004/001205 WO2004113155A1 (fr) 2003-06-16 2004-06-14 Dispositif de pivotement

Country Status (2)

Country Link
DE (1) DE10327343B4 (fr)
WO (1) WO2004113155A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2970233A1 (fr) * 2011-01-06 2012-07-13 Franck Jean Savard Potence de velo pouvant etre liberee en tout ou partie de son pouvoir directionnel
US11155318B2 (en) 2017-07-10 2021-10-26 Henry Chong Device for selective rotation of vehicular handlebar
DE202023104397U1 (de) 2023-03-14 2023-08-08 Rocker Parts Gmbh Lenkervorbau

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH176187A (de) * 1935-01-12 1935-03-31 Burckhardt Gottlieb Einrichtung an Fahrrädern zum Überführen der Lenkarme bei Nichtgebrauch in Parallelstellung zum Rahmen.
JPH08119172A (ja) * 1994-10-26 1996-05-14 Yoshiki Sasaoka 自転車のハンドル回動装置
DE19837972A1 (de) * 1998-08-21 2000-02-24 Hans Scholl Fahrrad mit einer relativ zur Vorderradgabel verstellbaren Lenkstange

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR515372A (fr) * 1920-05-11 1921-03-31 Andre Francois Liard Verrou de sureté pour direction de bicyclette, motocyclette et automobile
CH179307A (de) * 1934-11-06 1935-08-31 Sartori Leander Vorrichtung an Fahrrädern zum Verstellen der Lenkstange auf dem Schaftrohr und Sichern des Fahrrades gegen unbefugte Benutzung.
US4252335A (en) * 1979-07-11 1981-02-24 Brenner Richard K Collapsible bicycle
DE4305937A1 (en) * 1993-02-26 1993-08-12 Alfred Dipl Ing Frank Portable cycle for carriage in car - divides into two roughly equal parts joined at crossbar and down tube and is assembled without tools
DE19930668A1 (de) * 1999-07-02 2001-01-18 Gotthard Kramer Lenkervorbau für ein Zwei- oder Dreirad sowie Bausatz dafür
DE29919649U1 (de) * 1999-11-09 2000-03-30 Hartmann Joerg Einrichtung zur Sicherung von Fahrzeugen durch gezielte Unterbrechung der Lenkung
DE10031853A1 (de) * 2000-07-04 2002-01-17 Metallwarenfab Humpert W Gmbh Faltbarer Fahrradlenker

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH176187A (de) * 1935-01-12 1935-03-31 Burckhardt Gottlieb Einrichtung an Fahrrädern zum Überführen der Lenkarme bei Nichtgebrauch in Parallelstellung zum Rahmen.
JPH08119172A (ja) * 1994-10-26 1996-05-14 Yoshiki Sasaoka 自転車のハンドル回動装置
DE19837972A1 (de) * 1998-08-21 2000-02-24 Hans Scholl Fahrrad mit einer relativ zur Vorderradgabel verstellbaren Lenkstange

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 09 30 September 1996 (1996-09-30) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2970233A1 (fr) * 2011-01-06 2012-07-13 Franck Jean Savard Potence de velo pouvant etre liberee en tout ou partie de son pouvoir directionnel
US11155318B2 (en) 2017-07-10 2021-10-26 Henry Chong Device for selective rotation of vehicular handlebar
DE202023104397U1 (de) 2023-03-14 2023-08-08 Rocker Parts Gmbh Lenkervorbau

Also Published As

Publication number Publication date
DE10327343A1 (de) 2005-02-03
DE10327343B4 (de) 2005-04-14

Similar Documents

Publication Publication Date Title
EP2838782B1 (fr) Membre de couplage compacte autoverrouillant
EP2100806B1 (fr) Composant de bicyclette
DE3235288A1 (de) Tretkurbel fuer ein fahrrad
EP2594473A1 (fr) Dispositif à dérailleur pour un agencement de vitesses de vélo, notamment dispositif à dérailleur arrière
WO2008135518A1 (fr) Patte de dérailleur avec aide à l'installation
EP3085611A1 (fr) Potence de guidon
DE10013726A1 (de) Klappenscharnier
EP3135574B1 (fr) Couplage
WO2008101593A1 (fr) Axe de blocage rapide
WO2019008024A1 (fr) Système de fixation d'un axe de pivotement à un châssis de véhicule, châssis pour relier un axe de pivotement et procédé de montage d'un axe de pivotement à un châssis de véhicule
DE202015106650U1 (de) Schnellspann-Steckachse für Zweiräder
WO2004113155A1 (fr) Dispositif de pivotement
EP3138738B1 (fr) Dispositif de fixation de velo
EP1529656B1 (fr) Roues jumelées pour un véhicule
DE102019119565A1 (de) Fahrzeug, insbesondere Zweiradfahrzeug, und Radgabel-Vorbau-Kombination
DE3210448A1 (de) Schnellspannmutter
EP1762768B1 (fr) Dispositif écarteur ajustable
EP3718872B1 (fr) Véhicule, en particulier véhicule à deux roues et unité de potence de guidon
EP2583881B1 (fr) Dispositif de guidage pour un chariot de caméra et chariot de caméra ainsi équipé
EP3782829B1 (fr) Mécanisme de verrouillage pour un embrayage à bille
EP0461465A1 (fr) Dispositif pour fixer des éléments actifs et/ou passifs à la paroi de pièces de construction composites
EP2317164B1 (fr) Crochet, notamment pour dispositifs de sécurité
DE102007009406A1 (de) Achsenanordnung
EP4286261A1 (fr) Système de direction pour guidon de bicyclette avec dispositif de butée de direction
DE202016104865U1 (de) Spannvorrichtung für Steckachsen

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase