GB971199A - Improvements in castors - Google Patents

Improvements in castors

Info

Publication number
GB971199A
GB971199A GB4028162A GB4028162A GB971199A GB 971199 A GB971199 A GB 971199A GB 4028162 A GB4028162 A GB 4028162A GB 4028162 A GB4028162 A GB 4028162A GB 971199 A GB971199 A GB 971199A
Authority
GB
United Kingdom
Prior art keywords
cam
spring
fork
wheel fork
stem
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.)
Expired
Application number
GB4028162A
Inventor
Norman Whitaker
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.)
Flexello Castors and Wheels Ltd
Original Assignee
Flexello Castors and Wheels Ltd
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 Flexello Castors and Wheels Ltd filed Critical Flexello Castors and Wheels Ltd
Priority to GB4028162A priority Critical patent/GB971199A/en
Publication of GB971199A publication Critical patent/GB971199A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00Castors in general; Anti-clogging castors
    • B60B33/02Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2301/00Wheel arrangements; Steering; Stability; Wheel suspension
    • B62B2301/04Wheel arrangements; Steering; Stability; Wheel suspension comprising a wheel pivotable about a substantially vertical axis, e.g. swivelling castors
    • B62B2301/046Wheel arrangements; Steering; Stability; Wheel suspension comprising a wheel pivotable about a substantially vertical axis, e.g. swivelling castors with means restricting the rotation about that axis
    • B62B2301/0465Wheel arrangements; Steering; Stability; Wheel suspension comprising a wheel pivotable about a substantially vertical axis, e.g. swivelling castors with means restricting the rotation about that axis by urging the wheel into a position, e.g. into a straight forward position

Abstract

971,199. Castors. FLEXELLO CASTORS & WHEELS Ltd. July 8, 1963 [Oct. 24, 1962; Feb. 15, 1963], Nos. 40281/62 and 6280/63. Heading A4U. A self-centring castor includes a cam 9 (Figs. 1, 4), or 9a (Fig. 8), and an associated spring 10 or spring urged member 15, either one of the cam 9, 9a or the spring 10 or spring urged member 15 being associated with the fixed part of the castor and the other with the wheel fork 4, and the cam being profiled such that the action of the spring 10 or spring urged member 15 on the cam face always tends to move the wheel fork to a fore and aft aligned position. In one embodiment (Figs. 1, 4) on attachment plate 1 carries a fixed stem 3 extending through the combined bearing plate and wheel fork 4, the semi-elliptical extension on cam 9 on the stem 3 being engaged between block springs 10 anchored at one end 11 to the wheel fork 4 and having free ends engaged in a hole 12 in the opposite side of the fork. Outward bowing of the blade springs 10 on rotation of the fork 4 produces a centring action. In an alternative cam arrangement (Fig. 5) a circular-section extension 9 on the stem 3 carries a plate member 13 having protruding ends 14 which hold the springs 10 when the fork is off centre. In another embodiment (Fig. 8), the castor stem carries a heart-shaped cam 9a which is engaged by a roller 15 carried on a lever 16 pivoted at one end 17 to the wheel fork 4, the roller 15 being urged into contact with the cam 9a by a spring 19 connected to the free end 18 of the lever 16 and anchored, as at 20, to the wheel fork 4.
GB4028162A 1962-10-24 1962-10-24 Improvements in castors Expired GB971199A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4028162A GB971199A (en) 1962-10-24 1962-10-24 Improvements in castors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4028162A GB971199A (en) 1962-10-24 1962-10-24 Improvements in castors

Publications (1)

Publication Number Publication Date
GB971199A true GB971199A (en) 1964-09-30

Family

ID=10414106

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4028162A Expired GB971199A (en) 1962-10-24 1962-10-24 Improvements in castors

Country Status (1)

Country Link
GB (1) GB971199A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0028042A1 (en) * 1979-10-29 1981-05-06 SKF Industrial Trading & Development Co, B.V. Castor
FR2479104A1 (en) * 1980-03-28 1981-10-02 Saxby DEVICE FOR AUTOMATICALLY RECALLING THE SWIVEL WHEELS OF A MANUAL TRUCK IN A PREDETERMINED DIRECTION
EP0263596A2 (en) * 1986-10-06 1988-04-13 Aprica Kassai Kabushikikaisha Caster
WO1991011127A1 (en) * 1990-01-26 1991-08-08 Sudhaus Schloss- Und Beschlagtechnik Gmbh & Co. Suitcase or similar container
DE202010012904U1 (en) 2010-11-16 2012-02-17 Blickle Räder + Rollen GmbH & Co. KG castor
EP3366490A1 (en) * 2017-01-31 2018-08-29 Tente GmbH & Co. KG Swivelling wheel for in particular transport devices
CN110406318A (en) * 2019-07-18 2019-11-05 中山市盈禾脚轮有限公司 A kind of universal caster wheel to automatically reset

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0028042A1 (en) * 1979-10-29 1981-05-06 SKF Industrial Trading & Development Co, B.V. Castor
FR2479104A1 (en) * 1980-03-28 1981-10-02 Saxby DEVICE FOR AUTOMATICALLY RECALLING THE SWIVEL WHEELS OF A MANUAL TRUCK IN A PREDETERMINED DIRECTION
EP0263596A2 (en) * 1986-10-06 1988-04-13 Aprica Kassai Kabushikikaisha Caster
EP0263596A3 (en) * 1986-10-06 1988-12-07 Aprica Kassai Kabushikikaisha Caster
US4845805A (en) * 1986-10-06 1989-07-11 Aprica Kassai Kabushikikaisha Caster
AU600526B2 (en) * 1986-10-06 1990-08-16 Aprica Kassai Kabushiki Kaisha Caster
WO1991011127A1 (en) * 1990-01-26 1991-08-08 Sudhaus Schloss- Und Beschlagtechnik Gmbh & Co. Suitcase or similar container
DE202010012904U1 (en) 2010-11-16 2012-02-17 Blickle Räder + Rollen GmbH & Co. KG castor
EP3366490A1 (en) * 2017-01-31 2018-08-29 Tente GmbH & Co. KG Swivelling wheel for in particular transport devices
CN110406318A (en) * 2019-07-18 2019-11-05 中山市盈禾脚轮有限公司 A kind of universal caster wheel to automatically reset

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