ZA202108913B - A mechanical tensioning device and method - Google Patents

A mechanical tensioning device and method

Info

Publication number
ZA202108913B
ZA202108913B ZA2021/08913A ZA202108913A ZA202108913B ZA 202108913 B ZA202108913 B ZA 202108913B ZA 2021/08913 A ZA2021/08913 A ZA 2021/08913A ZA 202108913 A ZA202108913 A ZA 202108913A ZA 202108913 B ZA202108913 B ZA 202108913B
Authority
ZA
South Africa
Prior art keywords
nut
bolt
tensioning device
mechanical tensioning
attachable
Prior art date
Application number
ZA2021/08913A
Inventor
Christian Ivan Basson
Lorenzo Andrea Missio
Original Assignee
Advmet Pty 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 Advmet Pty Ltd filed Critical Advmet Pty Ltd
Publication of ZA202108913B publication Critical patent/ZA202108913B/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
    • B25B29/00—Accessories
    • B25B29/02—Bolt tensioners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
    • F16B31/04—Screwed connections specially modified in view of tensile load; Break-bolts for maintaining a tensile load

Abstract

The invention relates to a removable mechanical tensioning device, and a method of stretching a bolt or stud axially, the bolt being located in and attachable to an object via a nut. The device is operatively attachable to the bolt and comprises or is operatively coupled to a nut engaging assembly configured to automatically engage and tighten the nut, at a lower torque than the applied tool torque during loading conditions. In particular, displacement of a part of the tensioner device during loading conditions, causes axial stretch of the elongate member and actuation of the nut engaging assembly in the manner mentioned.
ZA2021/08913A 2019-05-16 2021-11-10 A mechanical tensioning device and method ZA202108913B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ZA201903054 2019-05-16
ZA202000824 2020-02-10
PCT/IB2020/054582 WO2020230082A1 (en) 2019-05-16 2020-05-14 A mechanical tensioning device and method

Publications (1)

Publication Number Publication Date
ZA202108913B true ZA202108913B (en) 2023-08-30

Family

ID=73289468

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA2021/08913A ZA202108913B (en) 2019-05-16 2021-11-10 A mechanical tensioning device and method

Country Status (2)

Country Link
WO (1) WO2020230082A1 (en)
ZA (1) ZA202108913B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112682415A (en) * 2020-12-29 2021-04-20 宁波金鼎紧固件有限公司 Fastener with torsional spring self-locking function

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5318397A (en) * 1992-05-07 1994-06-07 Junkers John K Mechanical tensioner
US5406867A (en) * 1993-06-16 1995-04-18 Unex Corporation Mechanical tensioner
US6058810A (en) * 1998-11-07 2000-05-09 Junkers; John K. Power tool for and a method of moving an element relative to an object
JP4913731B2 (en) * 2004-06-17 2012-04-11 ウェントワース バックネル、ジョン Bolt tension applying method and device for connecting bolt to tension device
US20060243100A1 (en) * 2005-04-27 2006-11-02 Jason Junkers Nut, a tool and a method for elongating and relaxing a stud and the like
WO2015118283A1 (en) * 2014-02-06 2015-08-13 Tentec Limited Tensioner
GB2580115B (en) * 2018-12-21 2021-08-25 Caterpillar Energy Solutions Gmbh Device for tensioning and tightening a screw

Also Published As

Publication number Publication date
WO2020230082A1 (en) 2020-11-19

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