WO2013184003A1 - A tool for demounting and mounting connection joints - Google Patents

A tool for demounting and mounting connection joints Download PDF

Info

Publication number
WO2013184003A1
WO2013184003A1 PCT/NO2013/050099 NO2013050099W WO2013184003A1 WO 2013184003 A1 WO2013184003 A1 WO 2013184003A1 NO 2013050099 W NO2013050099 W NO 2013050099W WO 2013184003 A1 WO2013184003 A1 WO 2013184003A1
Authority
WO
WIPO (PCT)
Prior art keywords
tool
demounting
mandrill
joint
connection joints
Prior art date
Application number
PCT/NO2013/050099
Other languages
French (fr)
Inventor
Ståle JOHANNESSEN
Original Assignee
Ståle Johannessen As
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 Ståle Johannessen As filed Critical Ståle Johannessen As
Publication of WO2013184003A1 publication Critical patent/WO2013184003A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/22—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning sprocket chains, endless tracks, antiskid chains

Definitions

  • connection joints consist of two callipers linked by a cross pin.
  • the cross pin includes a spring holding it in place in the connection joint.
  • the joint is put together using a hammer, i.e. the cross pin is hammered until it is in mesh.
  • the joint is opened by forcing the cross pin out with a hammer and mandrill. This process may be difficult, as "in the field" there may be no possibility of mounting the joint firmly; injuries may occur if the mandrill slips, etc.
  • the tool includes a longitudinal frame or chassis 1.
  • a locking arm 2 which may be rotated around the bolt 3.
  • the connection joint is placed in the chassis whereupon the locking arm is rotated into position holding the joint in place.
  • a groove 4 adapted to engage a corresponding bolt 5 at a first end of the chassis.
  • a locking screw may be arranged to secure the locking arm to the bolt 5 when the arm is closed upon the joint.
  • a counterhold (sleeve) 13 shown dashed in the figure). The counterhold may be interchangeable to adapt to cross pins of various sizes.
  • the chassis 1 also includes a press cylinder 6 (dashed) which is mounted in the other end of the chassis.
  • the press cylinder includes a piston 8. At the end of the piston there is fastened a mandrill 9.
  • the mandrill is interchangeable with mandrills of different sizes suiting the size of the cross pin in the coupling joint.
  • the press cylinder is manoeuvred with a lever 10, as in a car jack (this means that the lever is connected with a small jack cylinder delivering oil to the press cylinder). By pumping the lever, the mandrill 9 may push the cross pin out of the coupling joint and out through the counterhold 13.
  • the piston and mandrill When the pin has been pushed out, the piston and mandrill may be returned to the original position by opening a valve in the press cylinder using the handle 11. A spring (not shown) located below the press cylinder will then pull the piston and mandrill back. The locking arm may then be opened releasing the coupling joint.
  • the tool may also be used for the opposite operation, to mount the cross pin when reassembling the joint.

Abstract

A tool is disclosed for demounting and mounting connection joints for chains. The tool includes a chassis 1 for holding the coupling joint and a jack-like mechanism with a press cylinder 6, piston 8 and mandrill 9 for pushing in or out the cross pin of the connection joint.

Description

A tool for demounting and mounting connection joints
The present invention relates to a tool for opening connection joints for chains. Such connection joints consist of two callipers linked by a cross pin. The cross pin includes a spring holding it in place in the connection joint. Most often, the joint is put together using a hammer, i.e. the cross pin is hammered until it is in mesh. Correspondingly, the joint is opened by forcing the cross pin out with a hammer and mandrill. This process may be difficult, as "in the field" there may be no possibility of mounting the joint firmly; injuries may occur if the mandrill slips, etc.
Thus, there is a need for a tool for opening connection joints in a controlled way.
This is achieved with a tool according to the invention, as it appears from the following claims.
The invention will now be described in relation to the appended Fig. 1, which shows the tool as seen from the side. The tool includes a longitudinal frame or chassis 1. To the chassis 1 there is fastened a locking arm 2 which may be rotated around the bolt 3. In use, the connection joint is placed in the chassis whereupon the locking arm is rotated into position holding the joint in place. At the end of the locking arm there is a groove 4 adapted to engage a corresponding bolt 5 at a first end of the chassis. A locking screw may be arranged to secure the locking arm to the bolt 5 when the arm is closed upon the joint. Below the bolt 5 there is mounted a counterhold (sleeve) 13 (shown dashed in the figure). The counterhold may be interchangeable to adapt to cross pins of various sizes. The chassis 1 also includes a press cylinder 6 (dashed) which is mounted in the other end of the chassis. The press cylinder includes a piston 8. At the end of the piston there is fastened a mandrill 9. The mandrill is interchangeable with mandrills of different sizes suiting the size of the cross pin in the coupling joint. The press cylinder is manoeuvred with a lever 10, as in a car jack (this means that the lever is connected with a small jack cylinder delivering oil to the press cylinder). By pumping the lever, the mandrill 9 may push the cross pin out of the coupling joint and out through the counterhold 13. When the pin has been pushed out, the piston and mandrill may be returned to the original position by opening a valve in the press cylinder using the handle 11. A spring (not shown) located below the press cylinder will then pull the piston and mandrill back. The locking arm may then be opened releasing the coupling joint. The tool may also be used for the opposite operation, to mount the cross pin when reassembling the joint.

Claims

A tool for demounting and mounting connection joints,
c h a r a c t e r i z e d i n that the tool includes a longitudinal chassis (1) with a locking arm (2), which is adapted to hold a connection joint, a push cylinder (6) of a jack type which may be manoeuvred with a lever (10) and a return valve, as the press cylinder (6) includes a piston (8) with a mandrill (9), and a return spring.
A tool according to claim 1, wherein the mandrill (9) is interchangeable with mandrills of various sizes.
A tool according to claim 1, wherein the tool includes a counterhold (13), and whereupon the counterhold (13) Is interchangeable with
counterholds of various sizes.
PCT/NO2013/050099 2012-06-04 2013-06-04 A tool for demounting and mounting connection joints WO2013184003A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20120652 2012-06-04
NO20120652A NO333692B1 (en) 2012-06-04 2012-06-04 Tool for disassembly and assembly of coupling joints

Publications (1)

Publication Number Publication Date
WO2013184003A1 true WO2013184003A1 (en) 2013-12-12

Family

ID=48808488

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2013/050099 WO2013184003A1 (en) 2012-06-04 2013-06-04 A tool for demounting and mounting connection joints

Country Status (2)

Country Link
NO (1) NO333692B1 (en)
WO (1) WO2013184003A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115638096A (en) * 2022-10-13 2023-01-24 东台宏仁气体有限公司 Oil smoke fan for cooling compressor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191417825A (en) * 1914-07-28 1915-04-15 Renold Hans Ltd Improvements in Appliances for Extracting or Inserting Studs of Driving Chains.
EP0636459A1 (en) * 1993-07-27 1995-02-01 Hughes-Nexus Limited Chain assembly/disassembly
US20090070980A1 (en) * 2007-09-19 2009-03-19 Livesay Richard E System for servicing machine track and method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4870739A (en) * 1988-06-23 1989-10-03 Richards Raymon E Apparatus for removing pins from connecting link boat hardware
NO330940B1 (en) * 2010-02-01 2011-08-22 Svein Kare Aarseth Device for expelling laser pins from chains for chains

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191417825A (en) * 1914-07-28 1915-04-15 Renold Hans Ltd Improvements in Appliances for Extracting or Inserting Studs of Driving Chains.
EP0636459A1 (en) * 1993-07-27 1995-02-01 Hughes-Nexus Limited Chain assembly/disassembly
US20090070980A1 (en) * 2007-09-19 2009-03-19 Livesay Richard E System for servicing machine track and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115638096A (en) * 2022-10-13 2023-01-24 东台宏仁气体有限公司 Oil smoke fan for cooling compressor

Also Published As

Publication number Publication date
NO20120652A1 (en) 2013-08-19
NO333692B1 (en) 2013-08-19

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