JPS6460933A - Grounding device of grounding blade expansion/ contraction type - Google Patents
Grounding device of grounding blade expansion/ contraction typeInfo
- Publication number
- JPS6460933A JPS6460933A JP21744087A JP21744087A JPS6460933A JP S6460933 A JPS6460933 A JP S6460933A JP 21744087 A JP21744087 A JP 21744087A JP 21744087 A JP21744087 A JP 21744087A JP S6460933 A JPS6460933 A JP S6460933A
- Authority
- JP
- Japan
- Prior art keywords
- screw part
- blade
- grounding
- contact piece
- rotary rod
- 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
Links
Abstract
PURPOSE:To simplify the expansion/contraction mechanism of each grounding blade by allowing the female screw part of the upper and lower grounding blade to engage with the male screw part of No.2 and No.1 rotary rods, respectively, and permitting them to contact and separate from the upper contact piece through vertical motion with rotation of the rotary rods. CONSTITUTION:An upper 10 and a lower 15 contact piece are furnished in electrical connection with a fixed contact piece 6 for breaker and a base 2', respectively. In a protection case 12 No.1 rotary rod 17 is supported rotatably and has a male screw part 17a. A lower grounding blade 20 is fitted with possibility of vertical motion, and the female screw part 21a of a support 21 is engaged with the male screw part 17a of the rotary rod 17. The lower grounding blade 20 is electrically connected with the lower contact piece 15. The support 21 of the blade 20 moves up and down together with a screw cylinder 23 (No.2 rotary rod 27) with regular and reverse rotation of the rotary rod 17. A female screw part 30 is fixed to a cylindrical upper grounding blade 29 to be fitted in a guide cylinder 28, and engaged with the female screw part 23a of the screw cylinder 23. The blade 29 is moved up and down to contact and separate from the upper contact piece 10.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21744087A JPS6460933A (en) | 1987-08-31 | 1987-08-31 | Grounding device of grounding blade expansion/ contraction type |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21744087A JPS6460933A (en) | 1987-08-31 | 1987-08-31 | Grounding device of grounding blade expansion/ contraction type |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6460933A true JPS6460933A (en) | 1989-03-08 |
JPH0449210B2 JPH0449210B2 (en) | 1992-08-10 |
Family
ID=16704264
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21744087A Granted JPS6460933A (en) | 1987-08-31 | 1987-08-31 | Grounding device of grounding blade expansion/ contraction type |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6460933A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6417278B2 (en) * | 2015-06-01 | 2018-11-07 | 日本碍子株式会社 | Disconnector grounding device |
-
1987
- 1987-08-31 JP JP21744087A patent/JPS6460933A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPH0449210B2 (en) | 1992-08-10 |
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