GB1230215A - - Google Patents
Info
- Publication number
- GB1230215A GB1230215A GB1230215DA GB1230215A GB 1230215 A GB1230215 A GB 1230215A GB 1230215D A GB1230215D A GB 1230215DA GB 1230215 A GB1230215 A GB 1230215A
- Authority
- GB
- United Kingdom
- Prior art keywords
- arm
- pins
- axes
- pin
- engage
- 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
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
- E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
- E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
- E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
- E05F1/1284—Mechanisms in the shape of hinges or pivots, operated by springs with a leaf or similar spring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H35/00—Gearings or mechanisms with other special functional features
- F16H35/14—Mechanisms with only two stable positions, e.g. acting at definite angular positions
Abstract
1,230,215. Switch actuation; handles. WESTHEM CORP. Ltd. 18 Sept.,1968 [3 Nov., 1967], No. 44382/68. Heading H1N. An arm 12, Fig. 1, mounted on pivot pins 20 and which may actuate an electric switch, has an integral resilient arm 22 connected by an integral flexible web 26 to an arm 25 on fixed pivots 30, whereby the arm 12 is constrained due to the moment of the tensile force in the arm 22 about the pin 20. As seen in Fig. 1, the arm 22 tends to seek an unstressed position out of the plane of the arm 12. In the arrangement shown, the distance between the axes 18, 28 of the pivot pins 20, 30 is less than the length of the arm 25, whereby the line of action of the arm 25 goes over-centre of the pin 20 to reverse the bias on the arm 12. In a modification, the distance between the axes 20, 30 is greater than the length of the arm 25, whereby the actuator 12 is always biased towards its initial position. Projections 36 of the arm 12 engage the pins 30 to provide an end stop. The pins 30 may engage alternative holes in a fixed plate 32, whereby the arm 12 may have alternative operating positions. The ends of the pins 30 may also be rounded, whereby the arm 12 may be forcibly rotated to disengage the pins from the holes 34. The arm 12 may be of a thermoplastic material such as polypropylene.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US68051867A | 1967-11-03 | 1967-11-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1230215A true GB1230215A (en) | 1971-04-28 |
Family
ID=24731437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1230215D Expired GB1230215A (en) | 1967-11-03 | 1968-09-18 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3594852A (en) |
| AT (1) | AT280092B (en) |
| BE (1) | BE723025A (en) |
| CH (1) | CH479798A (en) |
| DE (1) | DE1805267C3 (en) |
| FR (1) | FR1590252A (en) |
| GB (1) | GB1230215A (en) |
| NL (1) | NL160064C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5176463A (en) * | 1987-07-30 | 1993-01-05 | Trw United-Carr Gmbh & Co. | Joint connection between two plastic parts |
| US5285556A (en) * | 1992-12-14 | 1994-02-15 | Shorin Joseph E | Integral polymeric clamp |
| US5803549A (en) * | 1997-06-06 | 1998-09-08 | General Motors Corporation | Self-locking forkbolt |
| US6022166A (en) * | 1998-06-25 | 2000-02-08 | Lear Corporation | Self locking, rattle resistant fork bolt |
| US6215081B1 (en) | 1998-08-31 | 2001-04-10 | Brigham Young University | Bistable compliant mechanism |
| US6757975B1 (en) | 2001-01-25 | 2004-07-06 | Brigham Young University | Multi-layered compliant mechanisms and method of manufacture |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL128141C (en) * | 1963-03-20 | |||
| GB1056999A (en) * | 1964-12-09 | 1967-02-01 | Initial Plastics Ltd | Improvements in hinges of flexible plastics material |
-
1967
- 1967-11-03 US US680518A patent/US3594852A/en not_active Expired - Lifetime
-
1968
- 1968-09-18 GB GB1230215D patent/GB1230215A/en not_active Expired
- 1968-10-03 NL NL6814132.A patent/NL160064C/en not_active IP Right Cessation
- 1968-10-25 DE DE1805267A patent/DE1805267C3/en not_active Expired
- 1968-10-28 FR FR1590252D patent/FR1590252A/fr not_active Expired
- 1968-10-28 CH CH1610868A patent/CH479798A/en not_active IP Right Cessation
- 1968-10-28 BE BE723025D patent/BE723025A/xx not_active IP Right Cessation
- 1968-10-29 AT AT1053168A patent/AT280092B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| US3594852A (en) | 1971-07-27 |
| DE1805267B2 (en) | 1973-09-27 |
| FR1590252A (en) | 1970-04-13 |
| NL160064B (en) | 1979-04-17 |
| BE723025A (en) | 1969-04-01 |
| NL6814132A (en) | 1969-05-06 |
| CH479798A (en) | 1969-10-15 |
| AT280092B (en) | 1970-03-25 |
| DE1805267C3 (en) | 1974-05-02 |
| DE1805267A1 (en) | 1969-12-11 |
| NL160064C (en) | 1979-09-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PE20 | Patent expired after termination of 20 years |