WO2004048186A1 - Structure de guidon pliable - Google Patents

Structure de guidon pliable Download PDF

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Publication number
WO2004048186A1
WO2004048186A1 PCT/IT2003/000773 IT0300773W WO2004048186A1 WO 2004048186 A1 WO2004048186 A1 WO 2004048186A1 IT 0300773 W IT0300773 W IT 0300773W WO 2004048186 A1 WO2004048186 A1 WO 2004048186A1
Authority
WO
WIPO (PCT)
Prior art keywords
arms
ring
box
shaped body
tubular
Prior art date
Application number
PCT/IT2003/000773
Other languages
English (en)
Inventor
Silvio Volpatti
Original Assignee
Silvio Volpatti
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 Silvio Volpatti filed Critical Silvio Volpatti
Priority to AU2003288528A priority Critical patent/AU2003288528A1/en
Publication of WO2004048186A1 publication Critical patent/WO2004048186A1/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

Definitions

  • the present invention relates to a set of folding handlebars for bicycles.
  • the main object of the present invention is that of providing a set of folding handlebars in which the two arms of the handlebars may be arranged in two positions, i.e. an operating position and folded position, the first being the position normally used for steering the bicycle, while the second being the position where the two arms of the handlebars assume an arrangement substantially parallel to the frame of the bicycle.
  • a further object of the present invention is that of providing a folding handlebar structure of the type indicated above which is suitable for any type of bicycle, i.e. both bicycles used for leisure purposes and racing bikes or mountain bikes.
  • a handlebar structure comprising two tubular arms which are substantially aligned axially and which are equipped at their free ends with the normal brake and/or speed-changing control levers, said arms extending from a tube for mounting on the support column, characterized in that said tubular arms extend from a box- shaped body, inside which each of said arms is rigidly joined to a pinion mounted on a pin situated at a predefined distance from the axis of the said tubular arms, the two pinions being permanently meshed together so that said tubular arms, following rotation of the two pinions, pass from the operating condition where they aligned along a common axis into the folded condition where they are arranged substantially at right angles to their common axis, releasable means also being envisaged for temporarily locking the two tubular arms in the said operating condition.
  • the two arms are arranged in a condition such that they are parallel to each other and to the plane in which the handlebar support column and more generally the frame of the bicycle lies.
  • Fig. 1 is a partially sectioned and partially exploded side view of the handlebars according to the present invention along the plane indicated by I-I in Fig. 2;
  • Fig. 2 is a cross-sectional view along the plane indicated by II-II in Fig. 1;
  • Fig. 3 is a view, similar to Fig. 2, of a variation of embodiment
  • Fig. 4 is a view, similar to Fig. 3, which also shows the headlamp combined with the handlebars;
  • Figs. 5 and 6 are views, similar to Figures 3 and 4, of a further variation of embodiment of the invention.
  • Figs. 7 and 8 are views which show a partially sectioned view of the handlebars in two possible folded conditions joined to the associated column; and Figs. 9 and 10 show a cross-sectional view of a further embodiment of the invention.
  • the handlebars comprises two arms - shown partially and indicated generally by the reference number 11 - each consisting of a tubular element 10 terminating at the free end (not shown) in the usual gripping handle and with rings for mounting the brake and gear-changing levers.
  • the ends of the two tubular elements 10 can be fixed, in a releasable manner as described below, to a box-shaped casing or body 12 forming one piece with a bracket 14 provided with a hole 16 for mounting on the end of the handlebar support column, indicated generally in Fig. 7 and 8 by the reference number 18.
  • the ends of the two tubular elements 10 situated inside the box-shaped body 12 are rigidly constrained to two blocks 20 terminating in a portion 22 provided with teeth 24, such that these ends are comparable to a partial pinion.
  • the portions 22 are pivotably mounted on the box-shaped body 12 by means of pins 26 and the box-shaped body has corresponding openings for allowing rotation of the blocks 20 and the tubular elements 10, together with the blocks, about the pins 26.
  • the teeth 24 of the two terminal portions 22_oiLthe_tW- ⁇ _bIocks 20 are permanently meshed together so that the rotation of the two blocks takes place and must be performed simultaneously and through an identical angle.
  • a device comprising a ring 28 is envisaged for releasably locking each arm 11 to the box-shaped body, said locking action keeping the handlebars in the operating condition and therefore the two arms axially aligned, said ring having its external surface tapered with a frustoconical tapering 30 able to co-operate with a corresponding tapered portion 32 of the opening in the box-shaped body 12.
  • the ring 20 has an internal hole with a diameter such that it may be slidably mounted on the tubular element 10, and, internally, a stepped part 34 defines a cylindrical seat 36 which houses a spring 38 which is kept in position by a second ring 40 able to slide on the outside of the tubular element 10, but inside the seat 36 of the ring 28.
  • the bracket 14 is not formed as one piece-with-the-box-shaped-body— l ⁇ jJmt-fi ed h.ereto yjiieans oila g-AS ⁇ ⁇ tbLa, circular form which co-operates with a lug 44, which also has a circular form, the two lugs being joined together by means of a pin 46.
  • Figures 7 and 8 show two different arrangements of the lugs 44 and 46, so that in the case of Fig. 7 the two arms 1 are folded in a substantially horizontal plane which is nearly at right angles to the axis of the column 18, while in the case of Fig. 8 folding of the two arms 11 is performed so that the arms in the folded condition are arranged substantially parallel to the axis of the column 18 and in any case directed vertically downwards. . h Fig. 4 the constructional solution of Fig. 3 is shown with the addition of the usual front lamp 50, which in this case is associated with the handlebars.
  • FIG. 5 the variant shown therein differs from that shown in Fig. 3 in that a connecting piece 52 is arranged between the circular lug 44 of the box-shaped body 12 and the circular lug 48 of the bracket 14, both the lugs being pivotably hinged with said connecting piece about pins 54 and 56, thus achieving greater ease of orientation of the handlebars and its box-shaped body as well as, ultimately, its arms 11, with respect to the plane of the bicycle frame and in particular with respect to the axis of the column 18.
  • handlebars of the present invention may be used for racing bikes having the characteristic handlebars with the two grips directed towards the rear, as well as for other types of bicycles.
  • the necessary condition is that the points of rotation of the two arms 11, which are identified in the embodiments illustrated by the pins 26, are situated at a distance from the common axis of the two arms when they are in the operating condition.
  • the box-shaped body 12 is mounted on the tube 18 of the handlebar support column in a manner known in the art and is composed of two halves 12A and 12B which are fixed together by means of bolts 60.
  • the two arms 11 of the handlebars are rigidly fixed to the periphery of the pinions 64 which are pivotably mounted about the pins 66 and have their respective teeth permanently meshed. Openings 68 are formed in the box-shaped body and allow the rotation of the arms 11 together with the pinions 64 in the directions indicated in the Figure by the arrows F and Fl .
  • the axes of rotation of the pinions 64 are situated at a predefined distance from the axis along which the two arms 11 are aligned in the operating condition of the handlebars. This distance is chosen so that by folding the arms by means of rotation of the pinions it is possible to arrange them at right angles to their initial position, while they would be splayed if the axes of rotation of the pinions were positioned along the axis of alignment of the arms 11.
  • the reference number 62 denotes a pin which may be engaged with one of a plurality of holes 70 so as to lock the respective pinion and together therewith the corresponding arm 11 in a desired angular position.
  • the holes 70 are arranged along a circumference centred about the axis of the pin 66.
  • the pin 62 may be associated with a spring or other device, not shown, but of the conventional type, which allows temporary disengagement thereof from the hole 70 so as to allow rotation of the pinions and the arms integrally therewith.

Landscapes

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

Abstract

L'invention concerne une structure de guidon pliable comprenant deux bras (11) pouvant se déplacer entre une position dans laquelle ils sont alignés axialement et une position dans laquelle ils sont disposés parallèlement au plan du cadre de la bicyclette. Les deux bras font corps avec des pignons (22) dont les axes de pivotement sont décalés et se trouvent à une distance donnée de l'axe des bras du guidon lorsqu'ils sont en position d'utilisation. Des moyens libérables (28, 30, 32, 34, 36, 38, 40, 42) sont associés aux deux bras (11) de sorte à les bloquer dans la position d'utilisation en alignement axial.
PCT/IT2003/000773 2002-11-26 2003-11-25 Structure de guidon pliable WO2004048186A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003288528A AU2003288528A1 (en) 2002-11-26 2003-11-25 Structure of handle-bars

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2002A002504 2002-11-26
ITMI20022504 ITMI20022504A1 (it) 2002-11-26 2002-11-26 Struttura di manubrio ripiegabile.

Publications (1)

Publication Number Publication Date
WO2004048186A1 true WO2004048186A1 (fr) 2004-06-10

Family

ID=32375542

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2003/000773 WO2004048186A1 (fr) 2002-11-26 2003-11-25 Structure de guidon pliable

Country Status (3)

Country Link
AU (1) AU2003288528A1 (fr)
IT (1) ITMI20022504A1 (fr)
WO (1) WO2004048186A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008104120A1 (fr) * 2007-02-27 2008-09-04 Geping Chen Guidons pliables à autoblocage
CN102730132A (zh) * 2012-05-10 2012-10-17 太仓市车中宝休闲用品有限公司 V字形折叠手把
CN109204654A (zh) * 2018-11-14 2019-01-15 深圳市乐骑智能科技有限公司 一种便于折叠的平衡车

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US657290A (en) * 1899-03-18 1900-09-04 Edward M Landis Adjustable handle-bar.
GB624942A (en) * 1947-07-15 1949-06-20 Allen Bowden Ltd An adjustable handle-bar, particularly for a cycle
US4682509A (en) * 1982-04-22 1987-07-28 Bridgestone Cycle Co., Ltd. Adjustable handlebar for bicycle
WO1994019230A1 (fr) * 1993-02-24 1994-09-01 Jong Il Park Bicyclette repliable
US5737967A (en) * 1993-05-27 1998-04-14 Hartley; James T. Pivoting handlebars
WO2000015488A1 (fr) * 1998-09-14 2000-03-23 Steadman William D Systeme de guidon
US6192773B1 (en) * 1999-04-21 2001-02-27 Hsin Lung Accessories Co., Ltd. Stem for a bicycle

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US657290A (en) * 1899-03-18 1900-09-04 Edward M Landis Adjustable handle-bar.
GB624942A (en) * 1947-07-15 1949-06-20 Allen Bowden Ltd An adjustable handle-bar, particularly for a cycle
US4682509A (en) * 1982-04-22 1987-07-28 Bridgestone Cycle Co., Ltd. Adjustable handlebar for bicycle
WO1994019230A1 (fr) * 1993-02-24 1994-09-01 Jong Il Park Bicyclette repliable
US5737967A (en) * 1993-05-27 1998-04-14 Hartley; James T. Pivoting handlebars
WO2000015488A1 (fr) * 1998-09-14 2000-03-23 Steadman William D Systeme de guidon
US6192773B1 (en) * 1999-04-21 2001-02-27 Hsin Lung Accessories Co., Ltd. Stem for a bicycle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008104120A1 (fr) * 2007-02-27 2008-09-04 Geping Chen Guidons pliables à autoblocage
CN102730132A (zh) * 2012-05-10 2012-10-17 太仓市车中宝休闲用品有限公司 V字形折叠手把
CN109204654A (zh) * 2018-11-14 2019-01-15 深圳市乐骑智能科技有限公司 一种便于折叠的平衡车

Also Published As

Publication number Publication date
AU2003288528A1 (en) 2004-06-18
ITMI20022504A1 (it) 2004-05-27

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