CA2060824A1 - Telescopic support arm - Google Patents

Telescopic support arm

Info

Publication number
CA2060824A1
CA2060824A1 CA 2060824 CA2060824A CA2060824A1 CA 2060824 A1 CA2060824 A1 CA 2060824A1 CA 2060824 CA2060824 CA 2060824 CA 2060824 A CA2060824 A CA 2060824A CA 2060824 A1 CA2060824 A1 CA 2060824A1
Authority
CA
Canada
Prior art keywords
arm
piece
support arm
slot
outside
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
CA 2060824
Other languages
French (fr)
Other versions
CA2060824C (en
Inventor
Katumi Yagi
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.)
Yagi KK
Original Assignee
Yagi KK
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 Yagi KK filed Critical Yagi KK
Priority to CA 2060824 priority Critical patent/CA2060824C/en
Publication of CA2060824A1 publication Critical patent/CA2060824A1/en
Application granted granted Critical
Publication of CA2060824C publication Critical patent/CA2060824C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Gates (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

A telescopic support arm includes an outside arm and an inside arm which are designed to slide freely each other, the outside arm having a slot and an abutting piece inside thereof, and the inside arm having a slot and rotatable stopping piece inside thereof. The stopping piece is rotated by the engagement with the end portions of the slots and the abutting piece so as to be projected out of or sink into the slots, and by its rotation the outside arm and the inside arm are free to slide each other in both the extending and contracting directions. The stopping piece is provided with a buffer mechanism which comprises a holding piece of the stopping piece , a spring for pulling the holding piece in, the contracting direction of the telescopic support arm, and a slot for slidably supporting a support shaft of the stopping piece. A rack with a tooth part is disposed in the outside arm along its longitudinal direction, while a locking piece with a pawl part is provided in the inside arm. While the support arm expands, the pawl part engages with each tooth of the tooth part one by one, so that the length of the support arm may be ajdusted by arresting the pawl part at a desired position.
CA 2060824 1992-02-07 1992-02-07 Telescopic support arm Expired - Lifetime CA2060824C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2060824 CA2060824C (en) 1992-02-07 1992-02-07 Telescopic support arm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2060824 CA2060824C (en) 1992-02-07 1992-02-07 Telescopic support arm

Publications (2)

Publication Number Publication Date
CA2060824A1 true CA2060824A1 (en) 1993-08-08
CA2060824C CA2060824C (en) 2001-07-03

Family

ID=4149222

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2060824 Expired - Lifetime CA2060824C (en) 1992-02-07 1992-02-07 Telescopic support arm

Country Status (1)

Country Link
CA (1) CA2060824C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112664156A (en) * 2020-12-30 2021-04-16 中海石油(中国)有限公司湛江分公司 Buffer anti-collision telescopic leg type anti-trawling net frame for underwater Christmas tree

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112664156A (en) * 2020-12-30 2021-04-16 中海石油(中国)有限公司湛江分公司 Buffer anti-collision telescopic leg type anti-trawling net frame for underwater Christmas tree

Also Published As

Publication number Publication date
CA2060824C (en) 2001-07-03

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry