JPS5723553A - Rope pull up device - Google Patents

Rope pull up device

Info

Publication number
JPS5723553A
JPS5723553A JP9913780A JP9913780A JPS5723553A JP S5723553 A JPS5723553 A JP S5723553A JP 9913780 A JP9913780 A JP 9913780A JP 9913780 A JP9913780 A JP 9913780A JP S5723553 A JPS5723553 A JP S5723553A
Authority
JP
Japan
Prior art keywords
rope
piston
compressed air
pull
pulled
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
Application number
JP9913780A
Other languages
Japanese (ja)
Inventor
Kaoru Sato
Hironori Maeda
Yoshio Ishikawa
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.)
Mitsui Engineering and Shipbuilding Co Ltd
Original Assignee
Mitsui Engineering and Shipbuilding Co 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 Mitsui Engineering and Shipbuilding Co Ltd filed Critical Mitsui Engineering and Shipbuilding Co Ltd
Priority to JP9913780A priority Critical patent/JPS5723553A/en
Publication of JPS5723553A publication Critical patent/JPS5723553A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To safely pull up a roof and the like to a required height by moving a group of sector wedges for grasping and pulling apart a rope by a vertical motion of a piston up and down by compressed air.
CONSTITUTION: When compressed air is blown into a cylinder 1 through an air path 5, a piston 2 rises while a lower wedge 8a grasps a rope 16, so that the rope 16, so that the rope 16 is pulled up. While the rope 16 is pulled up, the rope 16 is not restricted by an upper wedge 8. When the piston 2 finishes rising and the compressed air is let out of the cylinder, the piston 2 is pushed downward by a force of a spring 14, but as the lower wedge 8a puts no restrictions on the rope 16, the piston 2 descends. All this while the rope 16 is grasped by the upper wedge 8. In one cycle of such operation, the rope 16 is pushed up for a stroke of the piston2. The rope 16 can pull up a hanging load to the required height by repeating this operation.
COPYRIGHT: (C)1982,JPO&Japio
JP9913780A 1980-07-18 1980-07-18 Rope pull up device Pending JPS5723553A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9913780A JPS5723553A (en) 1980-07-18 1980-07-18 Rope pull up device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9913780A JPS5723553A (en) 1980-07-18 1980-07-18 Rope pull up device

Publications (1)

Publication Number Publication Date
JPS5723553A true JPS5723553A (en) 1982-02-06

Family

ID=14239324

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9913780A Pending JPS5723553A (en) 1980-07-18 1980-07-18 Rope pull up device

Country Status (1)

Country Link
JP (1) JPS5723553A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009121236A (en) * 1997-01-09 2009-06-04 Robert Ward Carter Device for unexcavated replacement of underground pipe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009121236A (en) * 1997-01-09 2009-06-04 Robert Ward Carter Device for unexcavated replacement of underground pipe

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