GB2454933A - Ball castor extendable by pressurised fluid or air - Google Patents

Ball castor extendable by pressurised fluid or air Download PDF

Info

Publication number
GB2454933A
GB2454933A GB0723081A GB0723081A GB2454933A GB 2454933 A GB2454933 A GB 2454933A GB 0723081 A GB0723081 A GB 0723081A GB 0723081 A GB0723081 A GB 0723081A GB 2454933 A GB2454933 A GB 2454933A
Authority
GB
United Kingdom
Prior art keywords
cylinder
air
ball castor
fluid
castor
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
GB0723081A
Other versions
GB0723081D0 (en
GB2454933B (en
Inventor
Richard Fletcher
John Godwin Walters
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 GB0723081A priority Critical patent/GB2454933B/en
Publication of GB0723081D0 publication Critical patent/GB0723081D0/en
Publication of GB2454933A publication Critical patent/GB2454933A/en
Application granted granted Critical
Publication of GB2454933B publication Critical patent/GB2454933B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/04—Castors in general; Anti-clogging castors adjustable, e.g. in height; linearly shifting castors
    • B60B33/06—Castors in general; Anti-clogging castors adjustable, e.g. in height; linearly shifting castors mounted retractably
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/08—Ball castors

Abstract

A retractable ball castor 3 is disclosed which is extendable by pressurised fluid or air to provide a cushioned suspension. The castor may be attached to a piston 2 which moves in a cylinder 1 with one open end through which the castor may project. The piston may be retained in the cylinder by a circular ring 5 fitted into a groove in the cylinder. The castor may be retained in its position by a flange fitted to the outside of the cylinder. During operation, pressurised fluid or air may be supplied through connector 6 and pipe 7. Piston seals 4 may prevent the escape of fluid or air from the cylinder.

Description

Retractable Ball Castor
Background
The need to move equipment around to create a flexible space is a regular requirement. The need to ensure that excessive loading does not damage the floor covering by the ball castors used is also a requirement.
Statement of Invention
To provide a solution to the above is to retract the ball castors so that the item is left supported on its base when not being moved. The ball castor has pneumatic or fluid suspension to avoid points of high loading on an uneven suthce.
Advantages The Retractable Ball Castor provides a facility to seat equipment firmly on the floor when in use or storage but provides a means of easy movement when required.
The pneumatic or fluid suspension eliminates the uneven distribution of loads between castors when the equipment is being moved.
Detailed Description
The description refers to the drawings on the attached sheets Fig.! Fig. 2 and the illustrations Fig. 3 and Fig. 4.
The piston element (4) moves freely in cylinder (1). The piston seals (4) prevent the egress of fluid or air from the cylinder. The retaining clip (5) retains the piston within the cylinder (1). The proprietary ball castor (3) is attached to the piston (2).
When at rest the ball castor is pushed back into the cylinder Fig. 1. During operation fluid or air supplied under pressure flows into the cylinder (1) through connector (6) and pipe (7). The fluid or air forces the piston (2) out of the cylinder (1) as far as the retaining ring (5). This pushes the ball castor out of the cylinder (1) into contact with the floor or surfce the equipment is supported by the bottom flange on cylinder (1).
Removing the pressurised fluid or air supply allows the ball castor to be pushed back into the cylinder.
The control of the fluid or air supply (6&7) pressure adjusts the loading of the ball to the floor or surface eliminating damage and allows movement of the piston in and out to provide a suspension.

Claims (5)

  1. Claims 1. A ball castor assembly that is retained in a retracted position and can be extended outwards by pressurised fluid or air and provide a fluid or air cushioned suspension.
  2. 2. A ball castor assembly as in claim 1 in which the ball castor is attached to a piston operating in a cylinder with one open end through which the ball castor may project, the piston being retained in the cylinder by a circular ring fitted into a groove in the cylinder.
  3. 3. A ball castor assembly as in claim 1 is given a suspension capability by the control of the pressure of the fluid or air supplied.
  4. 4. A ball castor assembly as in claim 1 is retracted at a controlled rate by controlling the fluid or air flow from the cylinder.
  5. 5. A ball castor assembly as in claim 1 that is retained in its position by a flange fitted to the outside of the cylinder.
GB0723081A 2007-11-24 2007-11-24 Retractable ball castor Active GB2454933B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0723081A GB2454933B (en) 2007-11-24 2007-11-24 Retractable ball castor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0723081A GB2454933B (en) 2007-11-24 2007-11-24 Retractable ball castor

Publications (3)

Publication Number Publication Date
GB0723081D0 GB0723081D0 (en) 2008-01-02
GB2454933A true GB2454933A (en) 2009-05-27
GB2454933B GB2454933B (en) 2012-10-10

Family

ID=38926015

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0723081A Active GB2454933B (en) 2007-11-24 2007-11-24 Retractable ball castor

Country Status (1)

Country Link
GB (1) GB2454933B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2585901C1 (en) * 2015-06-18 2016-06-10 Александр Поликарпович Лялин Ball wheel
CN105905030A (en) * 2016-06-06 2016-08-31 江苏海事职业技术学院 Multifunctional automobile warning frame
RU2643862C1 (en) * 2016-08-24 2018-02-06 Александр Поликарпович Лялин Ball wheel - 2
CN108566882A (en) * 2018-06-19 2018-09-25 洛阳中农富源现代农业技术有限公司 A kind of soilless culture holder of adjustable plantation spacing

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB925974A (en) * 1961-11-29 1963-05-15 Autoset Production Ltd Improvements relating to load-bearing balls
WO1987006661A1 (en) * 1986-04-23 1987-11-05 Camillo Masciarelli Anti-friction element
JPS63312201A (en) * 1987-06-12 1988-12-20 Sharp Corp Ball caster

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB925974A (en) * 1961-11-29 1963-05-15 Autoset Production Ltd Improvements relating to load-bearing balls
WO1987006661A1 (en) * 1986-04-23 1987-11-05 Camillo Masciarelli Anti-friction element
JPS63312201A (en) * 1987-06-12 1988-12-20 Sharp Corp Ball caster

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2585901C1 (en) * 2015-06-18 2016-06-10 Александр Поликарпович Лялин Ball wheel
CN105905030A (en) * 2016-06-06 2016-08-31 江苏海事职业技术学院 Multifunctional automobile warning frame
RU2643862C1 (en) * 2016-08-24 2018-02-06 Александр Поликарпович Лялин Ball wheel - 2
CN108566882A (en) * 2018-06-19 2018-09-25 洛阳中农富源现代农业技术有限公司 A kind of soilless culture holder of adjustable plantation spacing

Also Published As

Publication number Publication date
GB0723081D0 (en) 2008-01-02
GB2454933B (en) 2012-10-10

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732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20120322 AND 20120328

732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20140814 AND 20140820