WO2001072574A1 - Joint universel de bras oscillants de roue - Google Patents

Joint universel de bras oscillants de roue Download PDF

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Publication number
WO2001072574A1
WO2001072574A1 PCT/SK2001/000007 SK0100007W WO0172574A1 WO 2001072574 A1 WO2001072574 A1 WO 2001072574A1 SK 0100007 W SK0100007 W SK 0100007W WO 0172574 A1 WO0172574 A1 WO 0172574A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing
journal
axis
universal joint
joint according
Prior art date
Application number
PCT/SK2001/000007
Other languages
English (en)
Inventor
Pavel P. MIKˇÍK
Original Assignee
Mik & Caron
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 Mik & Caron filed Critical Mik & Caron
Priority to AU2001247042A priority Critical patent/AU2001247042A1/en
Publication of WO2001072574A1 publication Critical patent/WO2001072574A1/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
    • B62K19/00—Cycle frames
    • B62K19/30—Frame parts shaped to receive other cycle parts or accessories
    • B62K19/34—Bottom brackets
    • 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
    • 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
    • B62K25/30—Axle suspensions for mounting axles resiliently on cycle frame or fork with pivoted chain-stay pivoted on pedal crank shelf

Definitions

  • Present invention relates to a universal joint of a wheel swing arm destined for various types of folding bicycles or motorcycles.
  • the bicycle is folded in such a way that the rear wheel which is not spring mounted is dismantled, then the seat support and finally the chain support is disconnected, the latter being released and turned around the axis of the central assembly towards the front fork.
  • the folding procedure is time consuming, and the folded bicycle assumes large dimensions.
  • the U.S. Patent Nr. 4,634,138 solves the rear wheel folding of a classical type bicycle by turning the chain support together with the wheel around the axis of the central assembly towards the front wheel, whereby the overall length of the bicycle is shortened, and by tipping the seat and the handlebars also the height of the bicycle decreases.
  • the folded bicycle has large dimensions and the folding is time consuming.
  • a disadvantage of the bicycles described so far is the fact, that the folding method requires rather expert knowledge, the chain is not covered and it presents problems when folding the bicycle, the size of the folded bicycles, even if using small wheels, is relatively large, and the time required to fold the bicycle is relatively long.
  • the joints used so far do not allow to fold a bicycle to a size corresponding to the size of the wheel diameter.
  • Folding a bicycle is comprehensively solved for a universal type of a folding bicycle, described in PV 1621-99, the nature of which consists in that the front arm and the front swing arm are coupled by means of a joint and telescopic springing of the front wheel or by means of a front wheel spring mounting on which the front wheel is one-sidedly freely clamped and the rear swing arm together with the rear wheel is coupled by means of a joint with the telescopic springing of the rear wheel or with the spring mounting of the rear wheel.
  • Structural solution of the bicycle allows to fold various types of bicycles, those from a bicycle for sportsmen to a bicycle for children, to a size of 667 x 667 x 160 mm.
  • the aim of the present invention is to provide such solution of the joints of the wheel swing arms which allows to fold in a very simple way a universal type bicycle, for example, to a size of a front or rear wheel with the mudguard.
  • a universal joint of a wheel swing arm consisting of a bearing and a journal, the nature of which consists in that the journal which is equipped with a bearing is a hollow journal, the bearing axis being concurrent or coaxial with the axis of the hollow journal. If the bearing axis and the journal axis are concurrent, they may include an angle from 2 to 7°, preferably from 3 to 4.5°.
  • the bearing may be equipped with at least one tooth and the journal with at least one skew helical slot; in that case the bearing axis is coaxial with the journal axis.
  • the tooth width is smaller then the slot width, but sufficiently large to allow smooth sliding of the tooth.
  • the bearing and the hollow journal may be radial and cylindrical, and the bearing may be a sliding bearing; preferably, the bearing may be cylindrically radially sliding and the hollow journal may be cylindrically radial. If the bearing is equipped with a tooth and the hollow journal with a skew slot, the bearing and the hollow journal are stepped.
  • An advantage of the joint according to the present invention is its versatility. It can be used to clamp the wheel arms for bicycles as well as for motorcycles, hi the case of folding bicycles the joint according to the present invention allows to clamp the front and the rear wheel one-sidedly on the swing arm.
  • the axis of the radial cylindrical bearing or the axis of the radial sliding cylindrical stepped bearing with a tooth, and the axis of the hollow cylindrical radial stepped journal with a skew slot in which the tooth slides are perpendicular to the bicycle axis and to the radial face of the wheel.
  • Such solution of the joint allows to fold the rear wheel by turning it around the axis of the central structure to the centre of the bicycle frame. If the stepped bearing is equipped with a tooth, a stepped journal together with the swing arm and with the rear wheel is axially thrown out by sliding in the skew helical slot.
  • Constructional solution of the joint according to the present invention is suitable for all types of folding bicycles, those from bicycles for children to bicycles for adults, and from mountain bikes to road bicycles.
  • the constructional solution makes possible to fold bicycles of the above types to a size of 667 x 667 x 160 mm within a short time interval.
  • the technique of folding the bicycle is simple and requires no expert knowledge.
  • Figure 1 shows a horizontal sectional view of the central assembly of the bicycle located in the hollow cylindrical journal with a radial cylindrical bearing.
  • Figure 2 shows a horizontal sectional view of the bicycle frame at the axis of the radial stepped cylindrical bearing with a tooth, and of the hollow radial cylindrical stepped journal with the skew slot.
  • the universal joint of the wheel swing arm as shown in Fig. 1 , has an axis of the radial cylindrical sliding bearing V which includes an angle of 4° with the axis of the hollow cylindrical radial journal 2'.
  • the figure shows clamping of the radial cylindrical sliding bearing I on the bicycle frame 5 and of the hollow cylindrical radial journal 2 with the wheel swing arm 6.
  • This joint construction makes possible to clamp the wheel on the swing arm 6, thus allowing, when folding the rear wheel, for example, to turn it around the central assembly into the centre of the bicycle frame 5.
  • Figure 2 shows a joint, the radial cylindrical sliding stepped bearing 1 of which is equipped with a tooth 3, and the hollow stepped journal 2 is provided with a skew slot 4.
  • the axis of the radial cylindrical sliding stepped bearing V is coaxial with the axis of the hollow cylindrical radial stepped journal .
  • a universal joint according to the present invention can be utilised in the production of folding bicycles of various types, those from bicycles for sportsmen to bicycles for children, having wheels one-sidedly clamped on swing arms, as well as in clamping the wheels of motorcycles.

Landscapes

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

Abstract

Joint universel de bras oscillants de roue caractérisé par un essieu (2) creux équipé d'un coussinet (1), l'axe du coussinet (1') étant situé dans le même plan sur le même axe que l'axe de l'essieu creux (2'). Ce coussinet (1) peut être pourvu d'au moins une dent (3) et l'essieu (2) d'au moins une fente hélicoïdale inclinée (4). Dans ce cas le coussinet (1) présente le même axe que l'essieu (2). Ce coussinet (1) et cet essieu creux (2) peuvent être radiaux et cylindriques, tandis que le coussinet (1) peut être un coussinet glissant, de préférence, il peut glisser de façon cylindrique dans un sens radial et l'essieu creux (2) peut être cylindrique dans un sens radial. Si ce coussinet (1) est pourvu d'une dent (3) et l'essieu creux (2) d'une fente inclinée (4), ceux-ci sont échelonnés.
PCT/SK2001/000007 2000-03-29 2001-03-29 Joint universel de bras oscillants de roue WO2001072574A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001247042A AU2001247042A1 (en) 2000-03-29 2001-03-29 Universal joint of a wheel swing arm

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SK4602000A SK4602000A3 (en) 2000-03-29 2000-03-29 Universal joint of the wheel swinging arm
SKPV0460-2000 2000-03-29

Publications (1)

Publication Number Publication Date
WO2001072574A1 true WO2001072574A1 (fr) 2001-10-04

Family

ID=20435835

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SK2001/000007 WO2001072574A1 (fr) 2000-03-29 2001-03-29 Joint universel de bras oscillants de roue

Country Status (3)

Country Link
AU (1) AU2001247042A1 (fr)
SK (1) SK4602000A3 (fr)
WO (1) WO2001072574A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007009887B4 (de) * 2006-03-08 2010-06-24 David Tak-Wei Hon Klappfahrrad
CN103158817A (zh) * 2011-12-19 2013-06-19 黄殿贵 自行车方便折叠车架

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4634138A (en) 1983-11-07 1987-01-06 Fryer George E Folding bicycle
US5125678A (en) 1987-01-22 1992-06-30 Ulrich Bogen Folding bicycle
EP0565760A1 (fr) * 1992-03-11 1993-10-20 Shu An Ts'ao Vélo pliant
DE4313832A1 (de) 1993-04-28 1994-11-03 Markus Riese Klappbarer Fahrradrahmen
DE4423647A1 (de) * 1994-07-06 1996-01-11 Thomas Mueller Fahrrad
EP0965517A2 (fr) * 1998-06-15 1999-12-22 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Bicyclette pliante
WO2000005128A1 (fr) * 1998-07-21 2000-02-03 Ep Manufacturing Bhd (360116-T) Cadre de bicyclette pliable
WO2001038165A1 (fr) * 1999-11-26 2001-05-31 Miksik Pavel P Bicyclette pliante universelle

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4634138A (en) 1983-11-07 1987-01-06 Fryer George E Folding bicycle
US5125678A (en) 1987-01-22 1992-06-30 Ulrich Bogen Folding bicycle
EP0565760A1 (fr) * 1992-03-11 1993-10-20 Shu An Ts'ao Vélo pliant
DE4313832A1 (de) 1993-04-28 1994-11-03 Markus Riese Klappbarer Fahrradrahmen
DE4423647A1 (de) * 1994-07-06 1996-01-11 Thomas Mueller Fahrrad
EP0965517A2 (fr) * 1998-06-15 1999-12-22 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Bicyclette pliante
WO2000005128A1 (fr) * 1998-07-21 2000-02-03 Ep Manufacturing Bhd (360116-T) Cadre de bicyclette pliable
WO2001038165A1 (fr) * 1999-11-26 2001-05-31 Miksik Pavel P Bicyclette pliante universelle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007009887B4 (de) * 2006-03-08 2010-06-24 David Tak-Wei Hon Klappfahrrad
CN103158817A (zh) * 2011-12-19 2013-06-19 黄殿贵 自行车方便折叠车架

Also Published As

Publication number Publication date
AU2001247042A1 (en) 2001-10-08
SK4602000A3 (en) 2001-11-06

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