GB842485A - Improvements in or relating to electric switches and covers therefor - Google Patents
Improvements in or relating to electric switches and covers thereforInfo
- Publication number
- GB842485A GB842485A GB3663657A GB3663657A GB842485A GB 842485 A GB842485 A GB 842485A GB 3663657 A GB3663657 A GB 3663657A GB 3663657 A GB3663657 A GB 3663657A GB 842485 A GB842485 A GB 842485A
- Authority
- GB
- United Kingdom
- Prior art keywords
- screws
- switch
- spring
- actuator
- cover
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/26—Snap-action arrangements depending upon deformation of elastic members
- H01H13/36—Snap-action arrangements depending upon deformation of elastic members using flexing of blade springs
- H01H13/40—Blade spring with at least one snap-acting leg and at least one separate contact-carrying or contact-actuating leg
- H01H13/42—Blade spring with at least one snap-acting leg and at least one separate contact-carrying or contact-actuating leg having three legs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/10—Bases; Stationary contacts mounted thereon
Landscapes
- Push-Button Switches (AREA)
Abstract
842,485. Retractive switches; snap-action switches; momentary-contact switches. ELECTRICAL APPARATUS CO. Inc. Nov. 25, 1957, No. 36636/57. Class 38 (5). A switch base 32 of insulating material carriers two fixed contact members 111, 112, and a spring blade moving contact member 114 (Fig. 3), by means of hollow rivets 61, 62 and 63, respectively. The rivets are internally threaded to accommodate terminal screws and the end rivets 61 and 63 also accommodate screws 161 and 162 which secure an insulating cover 33. Screws 161, 162 may also act as terminals or may be of nylon to provide a fully insulated cover. An actuator 181 is slidably carried in cover 33 in alignment with the rivet 62 which may support a spring 186 to assist in retraction. A spring 185 changes the leverage of the moving contact blade 114 during operation and thus provides a wiping action of the contacts. One of the stationary contact members 111 or 112 may be omitted if a single-throw action only is desired. The switch may be mounted on an insulating panel by means of terminal strips fastened under the screws in rivets 61, 62 and 63 (Fig. 12, not shown), or by replacing screws 161, 162 by studs each having a nut to hold the cover 33 and another for panel mounting (Fig. 13, not shown). Alternatively small bolts through holes 95, 96 in the cover 33 may fasten the switch to supporting members (Fig. 14, not shown). Bolts through lateral holes 65 and 66 in the base 32 may be used to mount the switch or to join several switches together. A spring arm carrying a roller on its free end may be secured under screw 161 to engage the actuator 181 and operate it in accordance with a cam, for example, followed by the roller (Fig. 15, not shown); or a rigid member having a spring-loaded roller-carrying plunger to engage the actuator 181 (Fig. 16, not shown), may be secured to the top of the switch by means of screws 161, 162. In the embodiment of Fig. 17, the contact blade 114 is replaced by a snap-action assembly comprising a rigid frame 301 and a bowed spring strip 302. In this case the hollow rivet 62 carries a second actuator 312 for returning the switch to the position shown. In a further embodiment (Fig. 19), a modified snap-action assembly co-operates with a stop member 328 to restore the moving contact against member 111 on the one downward operation of the actuator and thereby provides only a momentary contact with member 112.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3663657A GB842485A (en) | 1957-11-25 | 1957-11-25 | Improvements in or relating to electric switches and covers therefor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3663657A GB842485A (en) | 1957-11-25 | 1957-11-25 | Improvements in or relating to electric switches and covers therefor |
Publications (1)
Publication Number | Publication Date |
---|---|
GB842485A true GB842485A (en) | 1960-07-27 |
Family
ID=10389892
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3663657A Expired GB842485A (en) | 1957-11-25 | 1957-11-25 | Improvements in or relating to electric switches and covers therefor |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB842485A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0884743A2 (en) * | 1997-06-11 | 1998-12-16 | Matsushita Electric Industrial Co., Ltd. | Improved structure of push-button switch |
-
1957
- 1957-11-25 GB GB3663657A patent/GB842485A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0884743A2 (en) * | 1997-06-11 | 1998-12-16 | Matsushita Electric Industrial Co., Ltd. | Improved structure of push-button switch |
EP0884743A3 (en) * | 1997-06-11 | 1999-08-04 | Matsushita Electric Industrial Co., Ltd. | Improved structure of push-button switch |
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