US20100229358A1 - Apparatus for extending the arm of a lever - Google Patents

Apparatus for extending the arm of a lever Download PDF

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Publication number
US20100229358A1
US20100229358A1 US12/734,020 US73402008A US2010229358A1 US 20100229358 A1 US20100229358 A1 US 20100229358A1 US 73402008 A US73402008 A US 73402008A US 2010229358 A1 US2010229358 A1 US 2010229358A1
Authority
US
United States
Prior art keywords
lever
connecting element
main body
piston
flat portion
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.)
Abandoned
Application number
US12/734,020
Other languages
English (en)
Inventor
Alois Niklaus
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
Publication of US20100229358A1 publication Critical patent/US20100229358A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P7/00—Securing or covering of load on vehicles
    • B60P7/06—Securing of load
    • B60P7/08—Securing to the vehicle floor or sides
    • B60P7/0823—Straps; Tighteners
    • B60P7/0853—Tools for manipulating straps or tighteners
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/21—Strap tighteners
    • Y10T24/2191—Strap stretching tools, tighteners, and sealers

Definitions

  • the present invention relates to an apparatus for extending the arm of a lever, particularly for extending the arm of a lever of strap tensioning devices.
  • An apparatus for extending the lever arm which can be used in particular to tighten the straps for retaining the load on bodies of trucks and the like and has an elongated main body that can be gripped by the user at one end and has, at the other end, an element for connection to a lever whose arm is to be extended.
  • the connecting element has a box-like structure that is open at one end to accommodate at least part of the lever.
  • this apparatus is particularly advantageous, especially when used to operate strap tensioning devices, it has the drawback that the tightening of strap tensioning devices is facilitated so much that it allows to reach the strength limits of the straps and/or of the strap tensioner, causing them to break.
  • the aim of the present invention is to provide an apparatus for extending the arm of a lever that meets this requirement, allowing to limit the tightening force of strap tensioning devices and the like.
  • an object of the invention is to provide an apparatus that can be preset to limit the force that can be transmitted thereby to a predefined limit.
  • Another object of the invention is to provide an apparatus that allows effective tightening of the straps for retaining the load, which is for example arranged on the body of a truck, so as to allow safe transport thereof.
  • Another object of the invention is to provide an apparatus that is structurally simple and easy to use and can be manufactured with low costs.
  • an apparatus for extending the arm of a lever particularly for extending the arm of a lever of strap tensioning devices, characterized in that it comprises
  • FIG. 1 is a perspective view of an apparatus according to the invention
  • FIG. 2 is a sectional view of an apparatus according to the invention, taken along a longitudinal plane;
  • FIG. 3 is an enlarged-scale sectional view of a detail of the apparatus according to the invention, in the operating configuration.
  • the reference numeral 10 generally designates an apparatus for extending the arm of a lever 11 , particularly for extending the arm of a lever 11 of strap tensioning devices, which has the particularity of comprising
  • a main body 13 which is associated with the connecting element 12 by way of means 14 for mutual inclination and can be gripped by the user to operate the lever 11 by way of the connecting element 12 , and
  • the inclination means 14 comprise a pivot 16 for coupling the connecting element 12 to the main body 13 , for their mutual inclination by rotation about a rotation axis A that is defined by the longitudinal axis of the pivot 16 .
  • the contrast means 15 preferably comprise
  • a piston 17 that is associated with the main body 13 , by way of mutual sliding means, and is provided with a head 18 for pushing against the connecting element 12 ,
  • the connecting element 12 is elongated, is associated with the pivot 16 in an intermediate portion thereof, has at one end a region 19 that is equipped so as to lock itself to the lever 11 , and has, at the other end, an element 20 for abutment against the head 18 .
  • the main body 13 is box-like, and a cylinder 21 for accommodating such elastic means is formed inside it.
  • the piston 17 conveniently has, at its opposite end with respect to the head 18 , a plate 23 , which is inserted slidingly in a first end 22 a of the cylinder 21 ; at the same time, the head 18 cantilevers out from the first end 22 a.
  • the main body 13 advantageously has means for contrasting the extraction of the plate 23 from the first end 22 a, which conveniently comprise a stroke limiting shoulder 24 for the plate 23 .
  • such elastic means comprise a helical spring 25 , which is accommodated within the cylinder 21 and is precompressed between the plate 23 and an end plate 26 that closes a second end 22 b of the cylinder 21 .
  • the head 18 conveniently has a first flat portion 27 for abutment against a corresponding second flat portion 28 formed on the abutment element 20 .
  • the piston 17 and the connecting element 12 when they are associated with the first flat portion 27 that adheres to the second flat portion 28 , have the flat portions 27 and 28 arranged substantially transversely with respect to the longitudinal extension of the cylinder 21 .
  • the apparatus 10 preferably comprises means for adjusting the preloading of the spring 25 , which conveniently comprise a screw 29 for pushing against the end plate 26 which is screwed onto the bottom 30 of the main body 13 , at the first end 22 a.
  • a plug 31 for covering the head of the screw 29 which is associated with the bottom 30 .
  • the user interlocks the apparatus 10 with the lever 11 at the equipped region 19 , then grips the main body 13 and by acting thereon turns the lever 11 about its fulcrum.
  • the piston 17 pushed by the spring 25 against the connecting element 12 , prevents its rotation with respect to the main body 13 gripped by the user, and so the lever 11 is turned thereby jointly with the main body 13 .
  • the invention achieves the proposed aim and objects, providing an apparatus for extending the arm of a lever that allows to limit the tightening force of strap tensioning devices and the like, such limit force being further presettable by way of the means for adjusting the preloading of the spring.
  • an apparatus by providing an extended lever arm for strap tensioning devices, allows a more effective tightening of straps for retaining loads, arranged on bodies of trucks or the like, than the fastening that can be obtained by acting directly on the strap tensioning device, so as to ensure safe transport of the load.
  • the materials used may be any according to requirements and to the state of the art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Helmets And Other Head Coverings (AREA)
  • Mechanical Control Devices (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
  • Clamps And Clips (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
  • Ink Jet (AREA)
  • Input From Keyboards Or The Like (AREA)
US12/734,020 2007-10-10 2008-10-02 Apparatus for extending the arm of a lever Abandoned US20100229358A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT000327A ITPD20070327A1 (it) 2007-10-10 2007-10-10 Attrezzatura di estensione del braccio di una leva
ITPD2007A000327 2007-10-10
PCT/EP2008/063210 WO2009047199A1 (en) 2007-10-10 2008-10-02 Apparatus for extending the arm of a lever

Publications (1)

Publication Number Publication Date
US20100229358A1 true US20100229358A1 (en) 2010-09-16

Family

ID=40129055

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/734,020 Abandoned US20100229358A1 (en) 2007-10-10 2008-10-02 Apparatus for extending the arm of a lever

Country Status (15)

Country Link
US (1) US20100229358A1 (es)
EP (1) EP2048027B1 (es)
JP (1) JP2011500399A (es)
CN (1) CN101821130A (es)
AT (1) ATE489257T1 (es)
AU (1) AU2008309705A1 (es)
BR (1) BRPI0818438A2 (es)
CA (1) CA2702179A1 (es)
DE (1) DE602008003638D1 (es)
EA (1) EA201070446A1 (es)
ES (1) ES2357279T3 (es)
IT (1) ITPD20070327A1 (es)
MX (1) MX2010003882A (es)
PL (1) PL2048027T3 (es)
WO (1) WO2009047199A1 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023230707A1 (en) * 2022-05-30 2023-12-07 Joe Bigstone Improved ratchet strap tightening device

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009015724U1 (de) * 2009-12-14 2010-03-25 Kaiser, Karl Vorrichtung zum Spannen einer Spannratsche von Zurrgurten
DE202011052149U1 (de) 2011-11-30 2012-02-24 Karl Kaiser Aufnahmeelement für einen Spannhebel einer Spannratsche von Zurrgurten
FR3016541B1 (fr) * 2014-01-20 2017-01-27 Franck Surgis Outil de serrage desserage de sangles
EP3018002A1 (de) * 2014-11-10 2016-05-11 Skadi Lindow Einrichtung zum Schließen von Spanngurten
DE202016005575U1 (de) 2016-09-14 2017-12-15 Uwe Ottinger Vorrichtung zum Angreifen an und Spannen einer Zurrgurt-Spannratsche

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3119278A (en) * 1961-11-14 1964-01-28 Simpson Elmer Lee Safety leverage extension
US3657944A (en) * 1970-07-20 1972-04-25 Jesse D Able Detachable handle extension for chain tightener
US3707885A (en) * 1971-10-12 1973-01-02 Duff Norton Co Hoist handle
US4218046A (en) * 1978-09-26 1980-08-19 Beebe Bros., Inc. Safety overload indicating winch lever resettable lockout means
US4532836A (en) * 1983-07-25 1985-08-06 Consolidated Devices, Inc. Adjustable fulcrum for torque wrenches
US5524505A (en) * 1994-01-18 1996-06-11 Hodgeon & Anderson, Inc. Chain binder extension handle
US5549429A (en) * 1994-04-12 1996-08-27 Sergent; Delores A. Ratchet-operating tool for strap-tightening mechanism
US20070217884A1 (en) * 2006-03-20 2007-09-20 Mcgrew David L Ratcheting winch tool

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2173813A1 (en) * 1995-04-10 1996-10-11 Nick M. Sorge, Jr. Universal ratchet handle

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3119278A (en) * 1961-11-14 1964-01-28 Simpson Elmer Lee Safety leverage extension
US3657944A (en) * 1970-07-20 1972-04-25 Jesse D Able Detachable handle extension for chain tightener
US3707885A (en) * 1971-10-12 1973-01-02 Duff Norton Co Hoist handle
US4218046A (en) * 1978-09-26 1980-08-19 Beebe Bros., Inc. Safety overload indicating winch lever resettable lockout means
US4532836A (en) * 1983-07-25 1985-08-06 Consolidated Devices, Inc. Adjustable fulcrum for torque wrenches
US5524505A (en) * 1994-01-18 1996-06-11 Hodgeon & Anderson, Inc. Chain binder extension handle
US5549429A (en) * 1994-04-12 1996-08-27 Sergent; Delores A. Ratchet-operating tool for strap-tightening mechanism
US20070217884A1 (en) * 2006-03-20 2007-09-20 Mcgrew David L Ratcheting winch tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023230707A1 (en) * 2022-05-30 2023-12-07 Joe Bigstone Improved ratchet strap tightening device

Also Published As

Publication number Publication date
MX2010003882A (es) 2010-08-04
EP2048027A1 (en) 2009-04-15
CA2702179A1 (en) 2009-04-16
AU2008309705A1 (en) 2009-04-16
JP2011500399A (ja) 2011-01-06
ES2357279T3 (es) 2011-04-20
PL2048027T3 (pl) 2011-04-29
CN101821130A (zh) 2010-09-01
BRPI0818438A2 (pt) 2015-05-12
EA201070446A1 (ru) 2010-10-29
ATE489257T1 (de) 2010-12-15
ITPD20070327A1 (it) 2009-04-11
EP2048027B1 (en) 2010-11-24
WO2009047199A1 (en) 2009-04-16
DE602008003638D1 (de) 2011-01-05

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STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION