GB9708881D0 - A linear actuator - Google Patents

A linear actuator

Info

Publication number
GB9708881D0
GB9708881D0 GBGB9708881.9A GB9708881A GB9708881D0 GB 9708881 D0 GB9708881 D0 GB 9708881D0 GB 9708881 A GB9708881 A GB 9708881A GB 9708881 D0 GB9708881 D0 GB 9708881D0
Authority
GB
United Kingdom
Prior art keywords
armature
parts
grip
elongate member
linear actuator
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
GBGB9708881.9A
Other versions
GB2324910A (en
GB2324910B (en
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.)
HARRIS ROBERT G
Original Assignee
HARRIS ROBERT G
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 HARRIS ROBERT G filed Critical HARRIS ROBERT G
Priority to GB9708881A priority Critical patent/GB2324910B/en
Publication of GB9708881D0 publication Critical patent/GB9708881D0/en
Publication of GB2324910A publication Critical patent/GB2324910A/en
Application granted granted Critical
Publication of GB2324910B publication Critical patent/GB2324910B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/02—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K99/00—Subject matter not provided for in other groups of this subclass
    • H02K99/20—Motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Electromagnets (AREA)

Abstract

A linear actuator comprises two solenoid arrangements, each with a coil 2 and a resiliently biased armature. An elongate member 1 extends through the armatures and each armature is formed from two separate parts 3, 4. The armature parts 3, 4 are arranged to provide a clasping grip and linear movement action upon the elongate member 1 when its associated solenoid coil 2 is energised. When the said solenoid coil 2 is de-energised the armature parts 3, 4 release their grip and are returned along the elongate member 1 by resilient means 11. The armature parts 3, 4 may comprise cylindrical and semi-cylindrical portions and non-magnetic portions 6. The non-magnetic portions are used to separate the armature parts 3, 4 to ensure a good clasping grip.
GB9708881A 1997-05-02 1997-05-02 A linear actuator Expired - Fee Related GB2324910B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9708881A GB2324910B (en) 1997-05-02 1997-05-02 A linear actuator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9708881A GB2324910B (en) 1997-05-02 1997-05-02 A linear actuator

Publications (3)

Publication Number Publication Date
GB9708881D0 true GB9708881D0 (en) 1997-06-25
GB2324910A GB2324910A (en) 1998-11-04
GB2324910B GB2324910B (en) 2001-01-03

Family

ID=10811661

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9708881A Expired - Fee Related GB2324910B (en) 1997-05-02 1997-05-02 A linear actuator

Country Status (1)

Country Link
GB (1) GB2324910B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10124338A1 (en) * 2001-05-18 2002-11-21 Zahnradfabrik Friedrichshafen Arrangement for controlling proportional electromagnet, especially for motor vehicle automatic gearbox clutch actuation, holds armature in rest position while magnetic coil is carrying no current

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5091710A (en) * 1988-07-28 1992-02-25 Matsushita Electric Industrial Co., Ltd. Step linear actuator
US5148067A (en) * 1991-07-01 1992-09-15 Lasota Laurence Latching linear motor
GB9400493D0 (en) * 1994-01-12 1994-03-09 Chubb Research Electromechanical actuators

Also Published As

Publication number Publication date
GB2324910A (en) 1998-11-04
GB2324910B (en) 2001-01-03

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Legal Events

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

Effective date: 20050502