JPS6460933A - Grounding device of grounding blade expansion/ contraction type - Google Patents

Grounding device of grounding blade expansion/ contraction type

Info

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
Application number
JP21744087A
Other languages
Japanese (ja)
Other versions
JPH0449210B2 (en
Inventor
Isamu Ishizaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NGK Insulators Ltd
Original Assignee
NGK Insulators Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NGK Insulators Ltd filed Critical NGK Insulators Ltd
Priority to JP21744087A priority Critical patent/JPS6460933A/en
Publication of JPS6460933A publication Critical patent/JPS6460933A/en
Publication of JPH0449210B2 publication Critical patent/JPH0449210B2/ja
Granted legal-status Critical Current

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.
JP21744087A 1987-08-31 1987-08-31 Grounding device of grounding blade expansion/ contraction type Granted JPS6460933A (en)

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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
JPH0449210B2 (en) 1992-08-10

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