[go: up one dir, main page]

GB2449711A - Motorcycle wheel forks and yokes assembly - Google Patents

Motorcycle wheel forks and yokes assembly Download PDF

Info

Publication number
GB2449711A
GB2449711A GB0710581A GB0710581A GB2449711A GB 2449711 A GB2449711 A GB 2449711A GB 0710581 A GB0710581 A GB 0710581A GB 0710581 A GB0710581 A GB 0710581A GB 2449711 A GB2449711 A GB 2449711A
Authority
GB
United Kingdom
Prior art keywords
brace
yokes
assembly
cross
yoke
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
GB0710581A
Other versions
GB2449711B (en
GB0710581D0 (en
Inventor
Matthew Chambers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB0710581A priority Critical patent/GB2449711B/en
Publication of GB0710581D0 publication Critical patent/GB0710581D0/en
Publication of GB2449711A publication Critical patent/GB2449711A/en
Application granted granted Critical
Publication of GB2449711B publication Critical patent/GB2449711B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B62K21/02—Front wheel forks or equivalent, e.g. single tine
    • 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
    • B62K21/04—Fork crowns

Landscapes

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

Abstract

The assembly comprises upper and lower yokes 3,4 coupled to wheel forks 5,6. To resist torsional forces on the yokes, they are rigidly coupled together by cross-bracing 2. This is in the form of an X-shaped member, a plate or two crossed wires. The yokes have integral bosses for engagement by the cross-bracing 2.

Description

Torsion Yo.ke (Triple Clamp)
Background
When a motorcycle is manufactured the forks are fixed to the frame of the motorcycle by means of a yoke (Fig. 1). This arrangement provides the means to steerthe motorcycle. Whenthe motorcycle-is turned there is a torsional loading applied to the forks. This loading means that the dimensions between the fork stanchions do not remain constant; Manufacturers have tried tocombatthis.probtem byhcreasing the diameter of the fotic stanchions. The invention proposes to prevent-this dimensional change -by means of a cross-brace that is fitted between the yokes (flg.4).
Description
in figure 4 a bottom yoke (4) is clamped to the fork stanchions (.5&6) using a conventional method of a pair of pinch bolts. This is followed by the steerer tube (7). This assembly is then placed in the correct orientationwithin the motorcycle frame. The top yoke (i) is then fitted to the top of the fork stanchions. Once the user is satisfied that the two yokes are aligned the cross-bace (2)cäii be fitted. This biàce is fitted to the nioi.intiig bosses (1) shoWn iii figufe 3.
The fitment ofthis cross-brace w1l ensure dimensional integrity of the fork stanchons relative to each o rdqring operation of the motorcycle and ensure that the loads are fed into the motorcycle in a controlled manner.
FigureS shows an alternative arrangement where a square plate (8) is fitted to the yokes to prevent radial movement.
Figure.6 shows a further arrangement wheretwowireropes.(9 &1O) are fitted to prevent the movement

Claims (5)

  1. Claims 1. A Brace to restrict rotational motion of top yoke relative to
    the bottom yoke around the steering axis;
  2. 2. Two yokes accord ing to claim 1 which incorporate mourning bosses for the fitment of a cross-brace.
  3. 3. A cross-brace according to claim I that is an X shape and mounted in four locations.
  4. 4. A c?Oss-b?ace àccoFdihg to claiM 1 that is a squa?e lätë desigil.
  5. 5. The assembly as claimed in claims 1 or 2 wherein the brace comprises two wires crossing to form an X-shape, the ends of each wire cooperating with a mounting location on each yoke respectively. * * * **. * . * ** * * S * **
    S ***
    S * S. * . . * SS
    S ***
    S
    5. A cross-brace according to claim ithat is constructed of two wire ropes.
    Amendments to the claims have been filed as follows: Claims 1. An assembly comprising two spaced yokes for coupling to forks for a front wheel and a separate brace fixed to both yokes utilising a plurality of mounting locations on each yoke.
    2. The assembly as claimed in claim I wherein the yokes have mounting bosses at the locations and cooperating with the brace.
    3. The assembly as claimed in claims 1 or 2 wherein the brace is an X-shaped body with ends of the limbs of the body cooperating with the mounting locations.
    4. The assembly as claimed in claims I or 2 wherein the brace is a rectangular plate.
GB0710581A 2007-06-02 2007-06-02 Torsion Yoke (Triple Clamp) Expired - Fee Related GB2449711B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0710581A GB2449711B (en) 2007-06-02 2007-06-02 Torsion Yoke (Triple Clamp)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0710581A GB2449711B (en) 2007-06-02 2007-06-02 Torsion Yoke (Triple Clamp)

Publications (3)

Publication Number Publication Date
GB0710581D0 GB0710581D0 (en) 2007-07-11
GB2449711A true GB2449711A (en) 2008-12-03
GB2449711B GB2449711B (en) 2009-04-22

Family

ID=38289763

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0710581A Expired - Fee Related GB2449711B (en) 2007-06-02 2007-06-02 Torsion Yoke (Triple Clamp)

Country Status (1)

Country Link
GB (1) GB2449711B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102770335A (en) * 2009-12-03 2012-11-07 司提万纳机械公司 Flange-based fixing system for vehicle suspension fork

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4373741A (en) * 1979-05-16 1983-02-15 Steyr-Daimler-Puch Aktiengesellschaft Front fork and fork head for motorcycles
DE19949621A1 (en) * 1999-10-14 2001-04-19 Richard Wibmer Forked bridge for motor cycles has upper and lower bridge sections integral with each other through two connecting elements spaced from and parallel to steering axle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4373741A (en) * 1979-05-16 1983-02-15 Steyr-Daimler-Puch Aktiengesellschaft Front fork and fork head for motorcycles
DE19949621A1 (en) * 1999-10-14 2001-04-19 Richard Wibmer Forked bridge for motor cycles has upper and lower bridge sections integral with each other through two connecting elements spaced from and parallel to steering axle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102770335A (en) * 2009-12-03 2012-11-07 司提万纳机械公司 Flange-based fixing system for vehicle suspension fork
JP2013512818A (en) * 2009-12-03 2013-04-18 ウール ステファン ワーグナー メカニック Clamping system for a vehicle fork having a suspension system

Also Published As

Publication number Publication date
GB2449711B (en) 2009-04-22
GB0710581D0 (en) 2007-07-11

Similar Documents

Publication Publication Date Title
WO2003086847A3 (en) Telescoping suspension fork having a quick release wheel axle clamp
EP1155950A3 (en) Three-wheeled vehicle with two front steering wheels
CA2436022A1 (en) Front wheel suspension system for vehicles having a single front wheel
CN105492312B (en) The two wheeler of power plant rocking arm with spring damping
JP2016034797A (en) Handle structure
US10850793B2 (en) Lower fork alignment system
EP1973773B1 (en) A frame for cycles , in particular for mountain bikes
GB2449711A (en) Motorcycle wheel forks and yokes assembly
US20110291382A1 (en) Rear suspension for a two-wheel vehicle
US7806421B2 (en) Handle stem for a bicycle
JP2017529275A (en) Bicycle front fork
CN203331767U (en) Automobile rear lower swing arm
WO2009069170A3 (en) Steerable and inclinable vehicle with two front wheels
JP6258811B2 (en) Suspension assembly assembly method, suspension assembly, and suspension assembly assembly facility
CN207000579U (en) Engine power steering pump support
JP2009149166A (en) Steering device
WO2007036225A3 (en) Two-wheeled frame, swing arm rear suspension and fork arrangement
CN207790873U (en) A kind of Study on Vehicle Front Wheel House torsional structure
WO2023060784A1 (en) Shock absorption device for front fork
CN207510350U (en) A kind of bumper inner framework structure
JP4554458B2 (en) Armor column equipment
CA2621957A1 (en) Rear bicycle frame structure
JP2016132303A (en) Front suspension of saddle-riding type vehicle
WO2013021904A1 (en) Structure for supporting suspension devices for vehicle
CN203753330U (en) Bicycle frame

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20110602