WO2006008536A1 - Door and board lifting device - Google Patents

Door and board lifting device Download PDF

Info

Publication number
WO2006008536A1
WO2006008536A1 PCT/GB2005/002873 GB2005002873W WO2006008536A1 WO 2006008536 A1 WO2006008536 A1 WO 2006008536A1 GB 2005002873 W GB2005002873 W GB 2005002873W WO 2006008536 A1 WO2006008536 A1 WO 2006008536A1
Authority
WO
WIPO (PCT)
Prior art keywords
lever
elongate rod
door
locking element
locking means
Prior art date
Application number
PCT/GB2005/002873
Other languages
French (fr)
Inventor
Ian Durrant
Original Assignee
Ian Durrant
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 Ian Durrant filed Critical Ian Durrant
Priority to US11/632,799 priority Critical patent/US8128066B2/en
Priority to EP05761340A priority patent/EP1786718B1/en
Priority to CN2005800244039A priority patent/CN1997583B/en
Publication of WO2006008536A1 publication Critical patent/WO2006008536A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F15/00—Crowbars or levers

Definitions

  • the present invention relates to a door and board lifting device.
  • Existing aids include those with a lever attached to a base, however these are problematic in that the operator must attempt to maintain the door or board at the appropriate height with the lever whilst also working with the door or board, for example by securing it to a hinge.
  • the present invention seeks to address these issues.
  • a door and board lifting device comprising a foot operated lever and locking means wherein said locking means is operative to releasably secure the lever in a substantially fixed position.
  • the locking means is operative to releasable secure the lever at any point through the lever's movement.
  • the lever is pivotally connected to a base.
  • the locking means is preferably operative to secure the lever in a substantially fixed position relative to the base.
  • said locking means incorporates an elongate rod with a main axis substantially in the direction of the lever's movement and a locking element frictionally engagable thereon.
  • said locking element is urged along the elongate rod by resilient biasing means when the lever is operated.
  • said resilient biasing means is a spring. More preferably said spring surrounds the elongate rod.
  • said locking element secures the lever by frictionally engaging with the elongate rod.
  • a release lever operative to release the locking means is provided.
  • the height of the fulcrum of the lever is adjustable.
  • the lever incorporates an elongate slot through which the elongate rod passes.
  • a washer is provided between the base of the spring and the lever.
  • Figure 1 is a schematic diagram of a side view of a door and board lifter made in accordance with the present invention
  • Figure 2 is a schematic diagram of a plan view of the door and board lifter of figure 1 ;
  • Figure 3 is a schematic diagram of the elongate slot in the lever.
  • the door and board lifter comprises a lever 1, with a pedal area 2 and a lifting area 3.
  • the lever is pivotally mounted on a base 4 by means of a screw 5 that passes through mounting hole 6.
  • a locking element 7 is provided on elongate rod 9.
  • the locking element is an angled strip of metal.
  • the locking element is free from but engages with a stop 8 on the lever.
  • the locking element may engage, for example, with a detent on the stop or pass into or through the stop.
  • the locking element incorporates a substantially circular hole 16 through which elongate rod 9 passes.
  • the elongate rod is mounted on the base.
  • a spring 12 is provided between lever 1 and locking element 7.
  • the lever 1 is approximately 30cm (12 inches) long by 11.5cm (4 1 A inches) in width.
  • Locking element 7 may be considered to be divided into two sections, an engaging section 10 and a releasing section 11.
  • engaging section 10 is substantially orthogonal to elongate rod 9 the locking element is free to slide along the elongate rod.
  • engaging section 10 is at an angle to elongate rod 9 it frictionally engages with the elongate rod and is not free to slide.
  • Lever 1 also incorporates a slot 14 through which elongate rod 9 passes. This slote is elongate such that as the lever is free to pivot. A washer 15 is provided at the base of spring 12. This arrangement, with the exception of spring 12 may be seen in Figure 3.
  • a second mounting hole 13 is provided in the base 4 such that the lever may be attached to the base at a different height setting.
  • the lever is fixed at the top hole 6, the lever is able to move through a height of 9.5cm (3 3 A inches).
  • the lever is fixed in the bottom hole the lever will move through a height of 6.4cm (254 inches).
  • the lever starts with the pedal area 2 in a raised position.
  • a door or board is slid onto the lifting area 3 of the lever.
  • the operator of the door or board lifter initiates pivoting of the lever around screw thereby lifting the door or board.
  • the spring urges locking element 7 up the elongate rod 9.
  • the locking element is free to move as its engaging section 10 is substantially orthogonal to the elongate rod.
  • Door and board lifters made in accordance with the present invention have several advantages. They are easy to construct, simple to operate and may lift doors or boards to any appropriate height whereupon the locking means is activated and the operator is free to work with the door or board.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Lock And Its Accessories (AREA)

Abstract

A door and board lifting device comprising a foot operated lever and locking means wherein said locking means is operative to releasably secure the lever in a substantially fixed position.

Description

DOOR AND BOARD LIFTING DEVICE
The present invention relates to a door and board lifting device.
When fitting doors it is necessary to lift them such that the hinges may be screwed onto the door frame in the correct position. When a door is being fitted by a single person this can be tricky and an aid to lift the door may be necessary.
Existing aids include those with a lever attached to a base, however these are problematic in that the operator must attempt to maintain the door or board at the appropriate height with the lever whilst also working with the door or board, for example by securing it to a hinge.
The present invention seeks to address these issues.
According to the present invention there is provided a door and board lifting device comprising a foot operated lever and locking means wherein said locking means is operative to releasably secure the lever in a substantially fixed position.
Preferably the locking means is operative to releasable secure the lever at any point through the lever's movement.
Preferably the lever is pivotally connected to a base. In this arrangement the locking means is preferably operative to secure the lever in a substantially fixed position relative to the base.
Preferably said locking means incorporates an elongate rod with a main axis substantially in the direction of the lever's movement and a locking element frictionally engagable thereon.
Preferably said locking element is urged along the elongate rod by resilient biasing means when the lever is operated. Preferably said resilient biasing means is a spring. More preferably said spring surrounds the elongate rod.
Preferably said locking element secures the lever by frictionally engaging with the elongate rod.
Preferably a release lever operative to release the locking means is provided.
Preferably the height of the fulcrum of the lever is adjustable.
Preferably the lever incorporates an elongate slot through which the elongate rod passes.
Preferably a washer is provided between the base of the spring and the lever.
In order that the invention may be more fully understood a specific embodiment will now be described, by way of example, with reference to the accompanying drawings, of which:
Figure 1 is a schematic diagram of a side view of a door and board lifter made in accordance with the present invention;
Figure 2 is a schematic diagram of a plan view of the door and board lifter of figure 1 ; and
Figure 3 is a schematic diagram of the elongate slot in the lever.
Referring to the drawings, the door and board lifter comprises a lever 1, with a pedal area 2 and a lifting area 3. The lever is pivotally mounted on a base 4 by means of a screw 5 that passes through mounting hole 6. A locking element 7 is provided on elongate rod 9. The locking element is an angled strip of metal. The locking element is free from but engages with a stop 8 on the lever. The locking element may engage, for example, with a detent on the stop or pass into or through the stop. The locking element incorporates a substantially circular hole 16 through which elongate rod 9 passes. The elongate rod is mounted on the base. A spring 12 is provided between lever 1 and locking element 7.
The lever 1 is approximately 30cm (12 inches) long by 11.5cm (41A inches) in width.
Locking element 7 may be considered to be divided into two sections, an engaging section 10 and a releasing section 11. When engaging section 10 is substantially orthogonal to elongate rod 9 the locking element is free to slide along the elongate rod. When engaging section 10 is at an angle to elongate rod 9 it frictionally engages with the elongate rod and is not free to slide.
Lever 1 also incorporates a slot 14 through which elongate rod 9 passes. This slote is elongate such that as the lever is free to pivot. A washer 15 is provided at the base of spring 12. This arrangement, with the exception of spring 12 may be seen in Figure 3.
A second mounting hole 13 is provided in the base 4 such that the lever may be attached to the base at a different height setting. When the lever is fixed at the top hole 6, the lever is able to move through a height of 9.5cm (33A inches). When the lever is fixed in the bottom hole the lever will move through a height of 6.4cm (254 inches).
In use, the lever starts with the pedal area 2 in a raised position. A door or board is slid onto the lifting area 3 of the lever. By stepping on the pedal area the operator of the door or board lifter initiates pivoting of the lever around screw thereby lifting the door or board. As the lever pivots, the spring urges locking element 7 up the elongate rod 9. The locking element is free to move as its engaging section 10 is substantially orthogonal to the elongate rod. When the door or board has reached the height desired by the operator, they may remove pressure from the pedal area of the lever. This causes the lifting area 3 of the lever to move down under the weight of the door or board and the stop 8 to engage with the end of the engaging section 10 of locking element 7 such that engaging section 10 is angled downwards and the sides of the hole 16 through which elongate rod 9 passes frictionally grip the elongate rod. Thus the lever is now prevented from moving back to its initial position by stop 8 being caught on the end of locking element 7 allowing the operator to attend to fixing the door or board without trying to maintain pressure on the lever.
To release the fictional lock the operator simply applies pressure to the release section 11 of locking element 7. This restores locking element 7 to a position where engaging section 10 is substantially orthogonal to elongate rod 9 and removes the frictional grip such that the lever is free to move.
Door and board lifters made in accordance with the present invention have several advantages. They are easy to construct, simple to operate and may lift doors or boards to any appropriate height whereupon the locking means is activated and the operator is free to work with the door or board.
The above embodiment is described by way of example only. Many variations are possible without departing from the spirit of the invention.

Claims

Claims:
1. A door and board lifting device comprising a foot operated lever and locking means wherein said locking means is operative to releasably secure the lever in a substantially fixed position.
2. The device of Claim 1 wherein the locking means is operative to releasable secure the lever at any point through the lever's movement.
3. The device of Claim 1 or 2 wherein the lever is pivotally connected to a base.
4. The device of any preceding claim said locking means incorporates an elongate rod with a main axis substantially in the direction of the lever's movement and a locking element frictionally engageable thereon.
5. The device of Claim 4 wherein said locking element is urged along the elongate rod by resilient biasing means when the lever is operated.
6. The device of Claim 5 wherein said resilient biasing means is a spring.
7. The device of Claims 6 wherein said spring surrounds the elongate rod.
8. The device of any of Claims 4-7 said locking element secures the lever by frictionally engaging with the elongate rod.
9. The device of any preceding claim wherein a release lever operative to release the locking means is provided.
10. The device of any preceding claim the height of the fulcrum of the lever is adjustable.
11. The device of any of Claims 4 to 10 wherein the lever incorporates an elongate slot through which the elongate rod passes.
12. The device of Claim 6 wherein a washer is provided between the base of the spring and the lever.
PCT/GB2005/002873 2004-07-21 2005-07-21 Door and board lifting device WO2006008536A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US11/632,799 US8128066B2 (en) 2004-07-21 2005-07-21 Door and board lifting device
EP05761340A EP1786718B1 (en) 2004-07-21 2005-07-21 Door and board lifting device
CN2005800244039A CN1997583B (en) 2004-07-21 2005-07-21 Door and board lifting device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0416290.5 2004-07-21
GBGB0416290.5A GB0416290D0 (en) 2004-07-21 2004-07-21 Door and board lifting device

Publications (1)

Publication Number Publication Date
WO2006008536A1 true WO2006008536A1 (en) 2006-01-26

Family

ID=32922568

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2005/002873 WO2006008536A1 (en) 2004-07-21 2005-07-21 Door and board lifting device

Country Status (5)

Country Link
US (1) US8128066B2 (en)
EP (1) EP1786718B1 (en)
CN (1) CN1997583B (en)
GB (1) GB0416290D0 (en)
WO (1) WO2006008536A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8220780B2 (en) * 2004-06-17 2012-07-17 Jean-Noel Guillore Assembly for setting, removing and maintaining doors
CN102121317A (en) * 2010-01-11 2011-07-13 贵阳铝镁设计研究院 Unloading reinforcing structure for steel frame beam
US8517342B2 (en) * 2011-04-25 2013-08-27 Adrian Dunca Door lifting and holding tool
US20150048287A1 (en) * 2013-08-15 2015-02-19 Stanley Black & Decker, Inc. Panel lifter
CN104476181A (en) * 2014-11-10 2015-04-01 泰州乐金电子冷机有限公司 Tool for adjusting height difference of refrigerator door
CN105822078B (en) * 2016-01-09 2018-06-01 淮安聚友新能源科技有限公司 It is used for repairing the device and method of photovoltaic solar in a kind of building
AU2017274078B2 (en) * 2016-06-03 2021-10-14 Jilltech Pty Ltd An improved apparatus for hanging doors
CN107572463B (en) * 2017-08-04 2020-02-18 中国石油天然气股份有限公司 Energy storage lever mechanism
WO2019173634A1 (en) * 2018-03-07 2019-09-12 Pulido Gabriel Adjustable door lifter
CN109623762B (en) * 2018-10-31 2022-01-14 上海江南长兴造船有限责任公司 Marine D type hangs sign indicating number assembly vehicle
CN111606272B (en) * 2020-06-01 2021-09-21 江西宏巍建筑工程有限公司 Auxiliary iron door installation equipment for building construction
CN112110372B (en) * 2020-09-15 2022-02-01 国网山东省电力公司济南市章丘区供电公司 Auxiliary window sash mounting device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2225769A (en) 1988-11-07 1990-06-13 William Richard Keahey Lifting device
DE9312875U1 (en) * 1993-08-27 1993-11-04 Weber, Walter, 79312 Emmendingen Device for lifting or lowering loads
US5814842A (en) * 1994-10-07 1998-09-29 Muldoon; Christopher K. Jacking device adapted for panel installation
EP1316470A2 (en) * 2001-11-30 2003-06-04 Centre d'Etude et de Recherche pour l'Automobile ( CERA) Device for translational moving and arresting of a smooth bar by torque lock of a blocking element

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1018282A (en) * 1911-04-20 1912-02-20 Jacob C Warner Door-jack.
US1266788A (en) * 1918-01-29 1918-05-21 Charles L Gannaway Valve and valve-spring remover.
GB1507749A (en) * 1975-08-29 1978-04-19 Dushku V Manually operated jack for use in tree felling
GB1556608A (en) * 1976-07-26 1979-11-28 Williams M E Levelling device
CN86201769U (en) * 1986-03-22 1987-07-08 湖南省公路管理局 Automatic clamper and locker for horizontal jack
US4712771A (en) * 1986-04-21 1987-12-15 Donnelly Kevin S Wallboard jack
DE29703963U1 (en) * 1997-03-05 1997-05-15 Burkhardt, Kurt, 75417 Mühlacker Door lifter
US6022008A (en) * 1998-02-11 2000-02-08 Bachman; David Door hanging jack
US6079696A (en) * 1998-09-21 2000-06-27 Bette; James R Non power tool for mounting doors
US6296230B1 (en) * 2000-03-31 2001-10-02 W. Richard Roth Door lifting device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2225769A (en) 1988-11-07 1990-06-13 William Richard Keahey Lifting device
DE9312875U1 (en) * 1993-08-27 1993-11-04 Weber, Walter, 79312 Emmendingen Device for lifting or lowering loads
US5814842A (en) * 1994-10-07 1998-09-29 Muldoon; Christopher K. Jacking device adapted for panel installation
EP1316470A2 (en) * 2001-11-30 2003-06-04 Centre d'Etude et de Recherche pour l'Automobile ( CERA) Device for translational moving and arresting of a smooth bar by torque lock of a blocking element

Also Published As

Publication number Publication date
GB0416290D0 (en) 2004-08-25
EP1786718A1 (en) 2007-05-23
EP1786718B1 (en) 2012-11-07
CN1997583A (en) 2007-07-11
US8128066B2 (en) 2012-03-06
US20080237557A1 (en) 2008-10-02
CN1997583B (en) 2011-12-21

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