GB2324910B - A linear actuator - Google Patents
A linear actuatorInfo
- Publication number
- GB2324910B GB2324910B GB9708881A GB9708881A GB2324910B GB 2324910 B GB2324910 B GB 2324910B GB 9708881 A GB9708881 A GB 9708881A GB 9708881 A GB9708881 A GB 9708881A GB 2324910 B GB2324910 B GB 2324910B
- 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.)
- Expired - Fee Related
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.
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 GB9708881D0 (en) | 1997-06-25 |
GB2324910A GB2324910A (en) | 1998-11-04 |
GB2324910B true 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)
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 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0353074A2 (en) * | 1988-07-28 | 1990-01-31 | Matsushita Electric Industrial Co., Ltd. | Step linear actuator |
US5148067A (en) * | 1991-07-01 | 1992-09-15 | Lasota Laurence | Latching linear motor |
GB2285711A (en) * | 1994-01-12 | 1995-07-19 | Chubb Research | Electromagnetic actuators |
-
1997
- 1997-05-02 GB GB9708881A patent/GB2324910B/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0353074A2 (en) * | 1988-07-28 | 1990-01-31 | Matsushita Electric Industrial Co., Ltd. | Step linear actuator |
US5148067A (en) * | 1991-07-01 | 1992-09-15 | Lasota Laurence | Latching linear motor |
GB2285711A (en) * | 1994-01-12 | 1995-07-19 | Chubb Research | Electromagnetic actuators |
Also Published As
Publication number | Publication date |
---|---|
GB9708881D0 (en) | 1997-06-25 |
GB2324910A (en) | 1998-11-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20050502 |