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WO1998015391A1 - Chariot de visite reglable - Google Patents

Chariot de visite reglable Download PDF

Info

Publication number
WO1998015391A1
WO1998015391A1 PCT/NO1997/000058 NO9700058W WO9815391A1 WO 1998015391 A1 WO1998015391 A1 WO 1998015391A1 NO 9700058 W NO9700058 W NO 9700058W WO 9815391 A1 WO9815391 A1 WO 9815391A1
Authority
WO
WIPO (PCT)
Prior art keywords
lifting
base frame
frame
lifting frame
working position
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.)
Ceased
Application number
PCT/NO1997/000058
Other languages
English (en)
Inventor
Børge GRIMSTAD
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
Priority to AU25228/97A priority Critical patent/AU2522897A/en
Priority to EP97916664A priority patent/EP0930958A1/fr
Publication of WO1998015391A1 publication Critical patent/WO1998015391A1/fr
Priority to NO991645A priority patent/NO991645L/no
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H5/00—Tool, instrument or work supports or storage means used in association with vehicles; Workers' supports, e.g. mechanics' creepers

Definitions

  • the present invention relates to a rolling device to enable mechanics to achieve a correct working position when effecting repairs under or to the side of vehicles and the like.
  • This type of device is often called a garage creeper or cradle.
  • a creeper is a board, equipped with castors, on which a mechanic can lie back before rolling, still lying down, under the vehicle.
  • the creepers at present on the market have a small cushion-like raised part for the head.
  • Such creepers are at a fixed height from the ground and give therefore little opportunity to the mechanic for adjusting his working height relative to the room available under the vehicle.
  • the headrest is likewise fixed on the board and leaves little room for adjustement by the mechanic.
  • frame-like devices equipped with castors which can be used in combination with a creeper, the creeper being placed on top of the frame in order to obtain a different working height.
  • Such frames used with a creeper, or a creeper alone do not provide any possibility for adjustment of the height for the head, the lying or sitting position and the height or support for the arms. Thus, they do not present any suitable option for a mechanic who requires acceptable, body-friendly and strain-preventing working positions.
  • the object of the present invention is to provide a device which can be adapted to each person's working needs in order to achieve an optimal combination of effective work and body-friendly, strain-preventing working positions.
  • the aim is an ergonomic working position.
  • a device having such an object must satisfy the following requirements:
  • the device it must be possible for the device to be displaced on the ground while the user is lying on it
  • FIG. 1 shows a side view of the device of the invention, lifted vertically from the lowest sitting position for the operator.
  • Figure 2 is the same view as figure 1 , in the lowest sitting position.
  • Figure 3 is a view from above of the device of the invention.
  • Figure 4 illustrates the device of the invention viewed from the underside.
  • Figure 5 illustrates the device of the invention viewed from the front and adjusted in a sitting position for the operator.
  • Figure 6 illustrates the design of the lifting arm.
  • the device of the invention consists of a chassis composed of a rectangular base frame 1 and a corresponding lifting frame 2.
  • the base frame 1 is equipped with castors 3 placed in the vicinity of the four corners of the base frame 1.
  • the castors 3 are mounted on one side of the base frame 1 and protrude from it in such a manner as to permit the base frame 1 to be displaced horizontally on a floor with the help of said castors 3.
  • the castors can swivel around a horizontal axis and a vertical axis so that the base frame 1 can be displaced on the floor as easily as possible.
  • a handle 4 Mounted on one of the short sides of the rectangular base frame 1, and approximately in the same plane as said frame, is a handle 4. Out of the opposite short side of the base frame 1 , and in the prolongation of the plane formed by said base frame 1, two transport wheels 5 are mounted in the vicinity of the two closest corners of the base frame 1. These two wheels 5 swivel around a horizontal axis.
  • the base frame 1 and the lifting frame 2 are connected to each other by a lifting device which consists of a first scissors leg 6 and a second scissors leg 7 provided between the frames 1,2 and arranged so as to be actuated and thus displace the two frames 1,2 away from each other.
  • the first scissors leg 6 swivels around a first axle 8 relative to the base frame 1. It is mounted on the base frame 1 close to the short side of the base frame 1 where the transport wheels 5 are situated, and positioned between the two longest sides of the base frame 1.
  • the opposite extremity of the first scissors leg 6 is mounted so as to slide on the lifting frame 2, sliding against the half of the lifting frame 2 which is situated furthest away from the securing point of the first scissors leg 6 to the base frame 1, so as to form a diagonal in the space between the two frames 1,2.
  • the second scissors leg 7 is mounted on a third axle 8' situated on the lifting frame 2 close to the short side of said lifting frame 2 which is closest to the short side of the base frame 1 where the transport wheels 5 are positioned.
  • the opposite extremity of the second scissors leg 7 is mounted so as to slide on the base frame 1 , sliding against the half of the base frame 1 which is furthest away from the securing point of the second scissors leg 7 to the lifting frame 2.
  • said scissors legs 6,7 are connected to one another so as to swivel around a centre shaft 9.
  • the lifting device 6,7,9 will displace the base frame 1 away from the lifting frame 2 with a vertical force.
  • This force is produced by a manual hydraulic lifting cylinder 10 mounted so as to swivel from one extremity on the side of the base frame 1 to which the handle 4 is mounted.
  • the opposite extremity of the lifting cylinder 10 is secured to an approximately L-shaped lifting arm 11.
  • the L-shape has, in addition to its own short arm 11 ', a corresponding short arm 11 ' parallel to the first, but slightly higher up along the long arm.
  • the longest arm of the L-shape is wedge-shaped.
  • the short arms 11' are turned towards the base frame 1 and the short arm 11 ' which is situated at the extremity of the long arm is mounted at its free extremity to the extremity of the lifting cylinder 10 which is not connected to the side of the base frame 1, in such a manner as to swivel around a lifting axle 11".
  • Mounted on the extremity of the second scissors leg 7 which slides on the base frame 1 is a slide shaft 12 which is always situated between the two short arms 11'.
  • the lifting device When the lifting frame 2 is resting against the base frame 1 and the lifting device 6,7,9 is most spread out, and when the lifting cylinder 10 is about to initiate elevation of the lifting frame 2 from the base frame 1, the lifting device must come out of a resting position before it starts operating.
  • the first part of the movement of the lifting cylinder 10 will push the wedge-shaped part of the lifting arm 11 between the guide bar 24 and the centre axle 9 in order to move the lifting device out of its resting position and to subsequently lift that point.
  • the slide shaft 12 will at first be situated against the inner short arm 11' on the long arm of the L-shape.
  • the slide shaft 12 remains immobile until the second short arm 11' reaches it and takes it along in its movement.
  • the lifting device is out of its resting position.
  • the outer short arm 11' will act on the slide shaft 12 so as to pull said shaft and the extremity of the second scissors leg 7 towards the second axle 8.
  • the lifting device 6,7,9 starts lifting, operating much like a pair of scissors.
  • the force of the lifting cylinder 10 will act directly on the lifting device in order to close the latter by acting on the second scissors leg 7.
  • the slide shaft 12 rests against the outer short arm 11', the guide bar 24 is held in place by the slide shaft 12 during the remainder of the lifting operation.
  • the slide shaft 12 will be in the position indicated on figure 6.
  • a power unit which is used to actuate the lifting cylinder 10. It consists of a pump 20 actuated with the help of a pump arm 21.
  • the pump arm 21 is operated by up-and-down movements and increases the pressure in the lifting cylinder 10.
  • a pressure reducing valve 19 is provided for releasing the pressure in the lifting cylinder 10 and lowering the lifting frame 2.
  • the face of the lifting frame 2 which is turned away from the base frame 1 is provided with two cushions.
  • One of the cushions constitutes a seat 13 which is inclined towards the lifting frame 2, at an angle from the side where the second axle 8 is situated, going down towards the middle of the lifting frame 2.
  • a backrest 14 is provided which stretches in the direction of and beyond the edge of the lifting frame 2 which is opposite the seat 13 end.
  • the extremity of the backrest 14 which is closest to the seat 13 can swivel around a horizontal chair axle 15 so that the backrest 14 can be lifted at an angle with the lifting frame 2, and form with the seat 13 a chair with an adjustable back.
  • U- shaped brackets 16 are provided on each side of the lifting frame 2, on the side closest to the base frame 1.
  • a lockable gas cylinder, the back lift 17, is mounted in each of these brackets 16, and in a manner enabling it to swivel, while the opposite extremity of the back lifts 17 is mounted to the back of the backrest 14 where it also can swivel, at a distance approximately two thirds of the backrest 14 length from the chair axle 15.
  • the back lift 17 is a gas reducer.
  • a release device 18 is provided, which can be pulled out, and actuate the back lift 17 which then lifts the backrest 14 to the desired angle.
  • the releasing device 18 can lock the backrest 14 in the chosen position.
  • the backrest 14 is somewhat wider than the lifting frame 2 from the space for the shoulders and down towards the space for the hips of the operator, and its cross section is somewhat incurved. This is achieved with the help of raised sides 14' aiming to give good lateral support to the back, and to provide adequate support for parts of the operator's arms from shoulder to hand while working.
  • the backrest 14 has an elongated design under the neck and head for the benefit of the operator.
  • a headrest 22 can be rotated to various positions in order to provide the correct height under the neck and head.
  • a space is provided for a tray or a box 23 for containing tools or the like which the operator may need to have within easy reach while working.
  • the box 23 When the box 23 is not in use, it is positioned in the prolongation of the lifting frame 2, under the backrest 14.
  • Two sets of stabilizers 26 are provided on the base frame 1.
  • One set of stabilizers 26 is situated on the base frame 1 next to the castors 3 which are closest to the handle 4.
  • the second set of stabilizers 26 is mounted between the transport wheels 5 and the adjacent castors 3.
  • the stabilizers 26 are made of hydraulic cylinders. These are connected to the same hydraulic system as the lifting cylinder 10.
  • the stabilizers 26 can either be lowered onto the floor and the base frame 1 is stabilized on the floor, or the lifting cylinder 10 is actuated to lift the lifting frame 2.
  • a reversing switch (not illustrated on the figures) connected to the hydraulic system enables the pump arm 21 to actuate either the stabilizers 26 or the lifting cylinder 10.
  • the circuit which, at any given moment, is not connected to the lifting cylinder 10 will be closed off and the pressure maintained. With the help of the pressure reducing valve 19 and the reversing switch in the correct position, either the stabilizers 26 are lifted up and stabilizing ends, or the lifting frame 2 is lowered.
  • the hydraulic system is also equipped with a safety device which releases the pressure if the lifting frame 2 is subjected to a weight in excess of the set limit value (e.g. 120 kg), and the lifting frame will then lower itself (Health, Environment and Safety Measures).
  • the set limit value is adjustable.
  • the present invention is also provided with an inclined seat 13 in order to ensure that the operator has a safe sitting position.
  • the seat 13 and the backrest 14 are incurved in order to provide lateral stability. All functions of the device which the operator needs when using the device can be reached when the user is sitting on the seat 13. This means that the user can sit down on the seat 13 and roll the device under a vehicle.
  • the device can then be operated with easy movements and manoeuvres to bring the lifting frame 2 in the correct position, the backrest 14 at the correct angle, place the headrest 22 in the desired position and stabilize the whole device on the floor.
  • the stabilizers 26 can be lifted and the user O97/00058

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Medical Bathing And Washing (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)

Abstract

Dispositif servant à permettre une position de travail correcte, qui comporte un châssis (1) de base doté de roulettes (3) et un châssis (2) de levage entre lesquels se trouvent un dispositif (6, 7, 9, 11, 12) de type ciseaux et un dispositif (10, 20, 21) de levage. Un siège (13) et un dossier pivotant (14) sont montés sur le châssis (2) de levage. Le dossier (14) est réglable à un certain angle par rapport au châssis (2) de levage à l'aide d'un dispositif de levage et de blocage (15, 16, 17, 18, 19). Le châssis (1) de base peut être stabilisé sur le sol à l'aide de stabilisateurs (26).
PCT/NO1997/000058 1996-10-07 1997-02-21 Chariot de visite reglable Ceased WO1998015391A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU25228/97A AU2522897A (en) 1996-10-07 1997-02-21 Adjustable maintenance creeper
EP97916664A EP0930958A1 (fr) 1996-10-07 1997-02-21 Chariot de visite reglable
NO991645A NO991645L (no) 1996-10-07 1999-04-07 Justerbart liggebrett

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO964246 1996-10-07
NO964246A NO964246L (no) 1996-10-07 1996-10-07 Anordning for riktig arbeidstilling, liggebrett

Publications (1)

Publication Number Publication Date
WO1998015391A1 true WO1998015391A1 (fr) 1998-04-16

Family

ID=19899916

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO1997/000058 Ceased WO1998015391A1 (fr) 1996-10-07 1997-02-21 Chariot de visite reglable

Country Status (4)

Country Link
EP (1) EP0930958A1 (fr)
AU (1) AU2522897A (fr)
NO (1) NO964246L (fr)
WO (1) WO1998015391A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101879716B (zh) * 2009-05-05 2012-06-20 福耀集团（上海）汽车玻璃有限公司 一种汽车玻璃检具万能检具角度架的制造方法
CN103273474A (zh) * 2013-05-31 2013-09-04 奇瑞汽车股份有限公司 一种汽车底盘高工位装配多功能移动小车
CN103286766A (zh) * 2013-06-14 2013-09-11 无锡商业职业技术学院 一种高度可调的修车用躺板
US9193064B2 (en) 2013-05-17 2015-11-24 The Ez Creeper Company Inc. Personal positioning creeper
EP2734342A4 (fr) * 2011-07-21 2016-01-06 Eric A Brittingham Ensemble chariot de visite convertible
US20160039088A1 (en) * 2014-08-07 2016-02-11 Darrell Wesley Blasjo Vehicle Service Platform
US20180222037A1 (en) * 2017-05-15 2018-08-09 Joel W. Hendrickson Adjustable Height Creeper
CN109623762A (zh) * 2018-10-31 2019-04-16 上海江南长兴造船有限责任公司 一种船用d型吊码装配车
CN110745733A (zh) * 2019-11-01 2020-02-04 如皋市宝象叉车有限公司 便携式快速组装移动平台
USD903220S1 (en) 2018-04-07 2020-11-24 Joel W. Hendrickson Creeper

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103613046A (zh) * 2013-09-30 2014-03-05 济南盛泽升降机械有限公司 角度可调升降平台
CN108748058A (zh) * 2018-06-07 2018-11-06 南京中高知识产权股份有限公司 一种用于电力行业的高空作业机器人及其使用方法
CN110153977B (zh) * 2019-07-05 2022-03-15 姚均飞 一种汽车维修用升降躺板

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2833587A (en) * 1956-05-11 1958-05-06 Saunders Harry Baird Adjustable height gurney
GB1491291A (en) * 1974-09-28 1977-11-09 Grammer W Spring mounting for a seat
WO1986006053A1 (fr) * 1985-04-16 1986-10-23 Sigmund Elkuch Dispositif de levage
US4767148A (en) * 1987-10-28 1988-08-30 Ferno-Washington, Inc. Multiple level roll-in cot
US4895380A (en) * 1988-02-17 1990-01-23 Ben Brooks Adjustable variable slope elevating creeper
US5472219A (en) * 1994-07-26 1995-12-05 Eckstrum; Kurt C. Combination automotive creeper and braking apparatus therefore

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2833587A (en) * 1956-05-11 1958-05-06 Saunders Harry Baird Adjustable height gurney
GB1491291A (en) * 1974-09-28 1977-11-09 Grammer W Spring mounting for a seat
WO1986006053A1 (fr) * 1985-04-16 1986-10-23 Sigmund Elkuch Dispositif de levage
US4767148A (en) * 1987-10-28 1988-08-30 Ferno-Washington, Inc. Multiple level roll-in cot
US4895380A (en) * 1988-02-17 1990-01-23 Ben Brooks Adjustable variable slope elevating creeper
US5472219A (en) * 1994-07-26 1995-12-05 Eckstrum; Kurt C. Combination automotive creeper and braking apparatus therefore

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101879716B (zh) * 2009-05-05 2012-06-20 福耀集团（上海）汽车玻璃有限公司 一种汽车玻璃检具万能检具角度架的制造方法
EP2734342A4 (fr) * 2011-07-21 2016-01-06 Eric A Brittingham Ensemble chariot de visite convertible
US9193064B2 (en) 2013-05-17 2015-11-24 The Ez Creeper Company Inc. Personal positioning creeper
CN103273474A (zh) * 2013-05-31 2013-09-04 奇瑞汽车股份有限公司 一种汽车底盘高工位装配多功能移动小车
CN103286766A (zh) * 2013-06-14 2013-09-11 无锡商业职业技术学院 一种高度可调的修车用躺板
US20160039088A1 (en) * 2014-08-07 2016-02-11 Darrell Wesley Blasjo Vehicle Service Platform
US20180222037A1 (en) * 2017-05-15 2018-08-09 Joel W. Hendrickson Adjustable Height Creeper
USD903220S1 (en) 2018-04-07 2020-11-24 Joel W. Hendrickson Creeper
CN109623762A (zh) * 2018-10-31 2019-04-16 上海江南长兴造船有限责任公司 一种船用d型吊码装配车
CN109623762B (zh) * 2018-10-31 2022-01-14 上海江南长兴造船有限责任公司 一种船用d型吊码装配车
CN110745733A (zh) * 2019-11-01 2020-02-04 如皋市宝象叉车有限公司 便携式快速组装移动平台

Also Published As

Publication number Publication date
AU2522897A (en) 1998-05-05
EP0930958A1 (fr) 1999-07-28
NO964246D0 (no) 1996-10-07
NO964246L (no) 1998-04-08

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