JPS647023A - Actuator with overheating preventive device - Google Patents
Actuator with overheating preventive deviceInfo
- Publication number
- JPS647023A JPS647023A JP16316087A JP16316087A JPS647023A JP S647023 A JPS647023 A JP S647023A JP 16316087 A JP16316087 A JP 16316087A JP 16316087 A JP16316087 A JP 16316087A JP S647023 A JPS647023 A JP S647023A
- Authority
- JP
- Japan
- Prior art keywords
- overheating
- terminal
- actuator
- preventive lever
- simple structure
- 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.)
- Pending
Links
Abstract
PURPOSE:To prevent overheating by simple structure by setting the electric feeding quantity per unit time which is required for the operation of a switch means larger than that for an actuator part. CONSTITUTION:An overheating preventive lever 11 is supported pivotally in a swinging state on a shaft 11d provided to a camera fixation part and an electrode part 11a which can swing is made to abut on the electrode 13a of a terminal 13 by a spring 12. In this state, the actuator part 9a and terminal 13 are connected electrically with each other through overheating prevention parts 9b and 9c made of shape memory alloy extended between a screw 11b engaged with the opposite-side swing arm of the overheating preventive lever 11 and the screw 10a of a fixed intermediate part 10. The terminal 13 is connected to a battery 16 as a power source through a lead line connected to the bottom part and a pin 11c is formed into the overheating preventive lever 11 for engagement with the spring 12. Consequently, the breaking of a wire due to overheating is precluded by the simple structure wherein the two shape memory alloy materials differ in operation timing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16316087A JPS647023A (en) | 1987-06-30 | 1987-06-30 | Actuator with overheating preventive device |
| US07/207,503 US4860040A (en) | 1987-06-19 | 1988-06-16 | Camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16316087A JPS647023A (en) | 1987-06-30 | 1987-06-30 | Actuator with overheating preventive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS647023A true JPS647023A (en) | 1989-01-11 |
Family
ID=15768371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16316087A Pending JPS647023A (en) | 1987-06-19 | 1987-06-30 | Actuator with overheating preventive device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS647023A (en) |
-
1987
- 1987-06-30 JP JP16316087A patent/JPS647023A/en active Pending
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