JPS55132812A - Elastic leader - Google Patents

Elastic leader

Info

Publication number
JPS55132812A
JPS55132812A JP4052679A JP4052679A JPS55132812A JP S55132812 A JPS55132812 A JP S55132812A JP 4052679 A JP4052679 A JP 4052679A JP 4052679 A JP4052679 A JP 4052679A JP S55132812 A JPS55132812 A JP S55132812A
Authority
JP
Japan
Prior art keywords
leader
pipe body
working
working tool
auxiliary
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
JP4052679A
Other languages
Japanese (ja)
Other versions
JPS5827370B2 (en
Inventor
Shigehisa Tabata
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP54040526A priority Critical patent/JPS5827370B2/en
Publication of JPS55132812A publication Critical patent/JPS55132812A/en
Publication of JPS5827370B2 publication Critical patent/JPS5827370B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Earth Drilling (AREA)

Abstract

PURPOSE: To make the length of a leader adjustable by a method wherein the pipe body of a leader is composed of two pipes slidably moving against each other and further an auxiliary elevating body is provided with respect to the leader for lifting and lowering working tools such as a hammer, auger etc.
CONSTITUTION: An inside pipe body 3 of a leader is housed in an outside pipe body thereof. When a working device A is positioned high, the length of the leader is increased by lifting the inside body 3. Next, when the working tool A is lifted by a wire 12, a grip part a rises along a guide pipe 1 and transfers to the auxiliary guide pipe 5 of an auxiliary elevating device 4. In addition, a stopper 6 makes the auxiliary elevating device 4 accompany the rising working tool A, rising under the quid ance of the inside pipe body 3 of the leader. In this way, the working tool A can be lifted up to the given height of the inside pipe body 3 by winding up the wire 12.
COPYRIGHT: (C)1980,JPO&Japio
JP54040526A 1979-04-04 1979-04-04 telescopic leader Expired JPS5827370B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54040526A JPS5827370B2 (en) 1979-04-04 1979-04-04 telescopic leader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54040526A JPS5827370B2 (en) 1979-04-04 1979-04-04 telescopic leader

Publications (2)

Publication Number Publication Date
JPS55132812A true JPS55132812A (en) 1980-10-16
JPS5827370B2 JPS5827370B2 (en) 1983-06-09

Family

ID=12582924

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54040526A Expired JPS5827370B2 (en) 1979-04-04 1979-04-04 telescopic leader

Country Status (1)

Country Link
JP (1) JPS5827370B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60192083A (en) * 1984-03-10 1985-09-30 株式会社西圧 Vertical hole drilling apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54153103U (en) * 1978-04-15 1979-10-24

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54153103U (en) * 1978-04-15 1979-10-24

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60192083A (en) * 1984-03-10 1985-09-30 株式会社西圧 Vertical hole drilling apparatus

Also Published As

Publication number Publication date
JPS5827370B2 (en) 1983-06-09

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