EP1015300A1 - Superstructure pour un appareil de transport au sol, et appareil de transport au sol - Google Patents

Superstructure pour un appareil de transport au sol, et appareil de transport au sol

Info

Publication number
EP1015300A1
EP1015300A1 EP98936267A EP98936267A EP1015300A1 EP 1015300 A1 EP1015300 A1 EP 1015300A1 EP 98936267 A EP98936267 A EP 98936267A EP 98936267 A EP98936267 A EP 98936267A EP 1015300 A1 EP1015300 A1 EP 1015300A1
Authority
EP
European Patent Office
Prior art keywords
lifting device
industrial truck
stand
truck according
hall floor
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.)
Withdrawn
Application number
EP98936267A
Other languages
German (de)
English (en)
Inventor
Michael Katzer
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.)
Ufp Unternehmensberatung Fabrik und Produktionsplanung GmbH
Original Assignee
Ufp Unternehmensberatung Fabrik und Produktionsplanung GmbH
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 Ufp Unternehmensberatung Fabrik und Produktionsplanung GmbH filed Critical Ufp Unternehmensberatung Fabrik und Produktionsplanung GmbH
Publication of EP1015300A1 publication Critical patent/EP1015300A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
    • B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
    • B62D65/18—Transportation, conveyor or haulage systems specially adapted for motor vehicle or trailer assembly lines

Definitions

  • the invention relates to an industrial truck, in particular for automobile body shells for automobile production, consisting of carts guided along a hall floor, each cart carrying a lifting device * in order to be able to change the height of the conveyed goods above the hall floor for assembly purposes.
  • the invention further relates to an attachment for a positively driven cart for an industrial truck for automobile manufacture of the generic type.
  • Karrens can be arranged flush with the hall floor, which can be arranged by closing the open channel cross-section.
  • Each cart usually carries a lifting device, which can be designed in the form of a scissor table, with a load level on which the body shell to be completed is mounted.
  • a lifting device which can be designed in the form of a scissor table, with a load level on which the body shell to be completed is mounted.
  • push-skid is referred to in the relevant industry as “push-skid”.
  • the “push skid” is generally pushed by the following “push skids” over the rails or through the channel embedded in the hall floor.
  • the base of the push skid is usually chosen so wide that workers can ride alongside the automobile, which is, for example, at chest height and is ready to be assembled, and leave the push skid after a certain cycle time to go to the next one.
  • the adjustable working height which is given in conventional push skids due to the lifting device, enables ergonomically favorable working, it is particularly useful for the so-called “wedding”, i.e. the installation of the engine and transmission from below into the body shell, as well as for the installation of axles and exhaust systems, the body shell has to be stored differently in order to provide enough assembly space below the body shell.
  • the body-in-white are therefore removed from the respective push skid from above at a particular production time in a transfer station and transferred to a drag-belt conveyor or an electric overhead conveyor. Both grants hold the bodyshell from above. Both the drag chain conveyor and the electric overhead conveyor are attached to a steel frame on a ceiling of the respective assembly hall.
  • the transfer of the body-in-white from a push skid to a hanging device and from there back to a push skid for complementing the vehicle means an additional expenditure of time, which increases the total time for building an automobile.
  • the invention is therefore based on the object of further developing a generic industrial truck in such a way that it is possible to enable sufficient work space and access options for the assembly of units from below into the bodyshell without moving the bodyshell to another industrial truck.
  • the solution to the problem is characterized in a generic industrial truck in that the lifting device is mounted on the cart so that it can be rotated about the vertical axis by at least 90 °, preferably 180 °.
  • means are arranged in the load plane of the lifting device for translatory displacement of the conveyed material, in particular an automobile body, in the load plane.
  • a particularly preferred embodiment of the industrial truck according to the invention has holding means acting on the body for fixing the body relative to the load plane.
  • four essentially vertically arranged stands are provided, on which the body-in-white rests, while in at least one stand pivotally mounted hooks are arranged that hold the body-in-white reach behind in a suitable place.
  • the lifting device can be lowered to such an extent that the load plane is essentially flush with the hall floor and that the stand are foldable, retractable or otherwise movable into the load plane.
  • the hooks provided in at least one stand which secure the body-in-white against tipping, are automatically retracted when the respective stand is folded, i.e. unlock the body as it were.
  • At least one stand has pivotably mounted hooks which can be actuated by a plunger mounted in a central bore of the stand.
  • the plunger rests on a lever mounted in the stand, one leg of which, in the locked state, projects beyond the cross section of the substantially cylindrical stand.
  • a sleeve is guided on the outside of the stand and is connected to an actuating cylinder via a pull rod.
  • the kinematic arrangement is selected so that when the actuating cylinder is moved, the sleeve is positively controlled from the pull rod into the pivoting area of the lever, the free leg of which is pressed into the stand, the other leg acting on the plunger and thus unlocking the hooks .
  • the stand is supported at its lower end so that when the actuating cylinder is extended further, the stand is pivoted about its pivot axis and in the load plane, i.e. comes to rest on the lifting device.
  • the industrial truck according to the invention can be realized by constructing attachments for already known and existing push skids, ie carts guided along a floor of the hall, which have a lifting device which is mounted on a base frame such that it is at least 90 ° with respect to the push kid can be rotated, means being arranged in the load plane of the lifting device, for example linear guides, with which a body shell mounted on the lifting device can be translated into a projecting position.
  • the base frame is mounted on at least one circular rail such that the lifting device can be rotated through 360 ° as desired.
  • the lifting height of the lifting device is at least two meters, so that the underside of the vehicle - for example for mounting an exhaust system - can be arranged so high above the level of the hall floor that a worker can step under the body without to have to bend down.
  • the industrial truck according to the invention makes it possible to carry out all of the individual steps required for assembling a motor vehicle without having to change the industrial truck during the assembly process.
  • the special design of the push-in skid according to the invention enables the vehicle or the body-in-white to be brought into a position for every conceivable assembly step in which the necessary areas of the body-in-white are accessible, ergonomic aspects being preserved.
  • FIG. 1 shows a side view of an attachment according to the invention for the carts (push skids) of an industrial truck according to the invention
  • FIG. 2 shows a plan view of the attachment according to FIG. 1,
  • FIG. 3 shows a side view, the viewing direction being perpendicular to that of FIG. 1
  • FIG. 4 shows a detail Q according to FIG. 11 on an enlarged scale
  • FIG. 5 shows a section along the line A-A in FIG. 1,
  • FIG. 6 - an enlarged detailed view of the central bearing visible in FIG. 5, designated X,
  • FIG. 7 - an enlarged detail, designated Y in FIG. 2, representing a plan view of one of the stands visible in FIG. 1 above the load level,
  • FIG. 8 - a section along the line B-B in FIG. 1,
  • FIG. 10 shows an enlarged section according to detail V in FIG. 8,
  • FIG. 11 shows a section at right angles to that of FIGS. 5 and 8 along the line C-C in FIG. 3,
  • FIG. 12 - an enlarged representation of the detail designated by J in FIG. 3,
  • FIG. 13 - the enlarged representation of the stand according to individual width W in FIG. 11, already shown in FIGS. 7 and 9,
  • Figure 14 - a schematic representation of the on one
  • FIG. 15 - a top view of the view according to FIG. 14,
  • FIG. 16 shows a section through the industrial truck according to FIGS. 14 and 15,
  • Figures 17 to 20 - a schematic representation of the procedure for presenting the front underside of the body shell for mounting the engine.
  • a base frame 10 which has a circularly curved outer wall which rims like five spokes arranged like spokes 12 - cf.
  • Figure 2 - is connected to a central bearing 14.
  • the base frame 10 is intended to be attached to a cart (push skid) 16 known per se.
  • the push skid 16 runs with wheels 18 on rails 20 which are arranged in a channel 24 embedded in the hall floor 22.
  • FIGS. 14 to 16 also show, an upper working surface 26 of the push-in child is arranged in such a way that it is flush with the hall floor 22, as is known per se.
  • the worker symbolically represented in FIGS. 14 and 16 can travel with the push skid moved to the left or right in FIG. 14 in order to carry out work on the vehicle to be mounted on the push skid during a limited cycle time.
  • the base frame 10 carries two circular rails 28 which are arranged concentrically to the bearing 14 and on which a lifting device 30 with four wheel arrangements 32 is rotatably mounted.
  • the axis of rotation is additionally predetermined by the central bearing 14, which is shown in detail in FIG. 6.
  • a single wheel 34 of the wheel arrangement 32 is shown in FIG. 4.
  • the base frame 10 is equipped with an inwardly projecting leg 36, which serves as a support surface act in order to be able to support, via supports 38 connected to the lifting device, tilting moments which occur when the center of gravity of a load to be carried by the lifting device does not lie within the rectangle defined by the four roller arrangement 32.
  • Figure 6 also shows a bevel gear 40, which is used to drive a motor, not shown in the drawing.
  • the lifting device 30 consists of a scissor table known per se with a load level L indicated in FIG. 1.
  • FIGS. 17 to 20 show a vehicle raised with the lifting device, in particular a body-in-white in the production line of an automobile plant, in a position in which, for example, the engine compartment is accessible from below to "celebrate the wedding" ".
  • FIG. 17 shows the body shell on the lifting device 30 in the raised state.
  • FIG. 18 shows the representation according to FIG. 17, the viewing direction being opposite to the conveying direction symbolized by an arrow in FIG. 17.
  • FIG. 19 shows the movement of the body-in-white using the linear guide 42/44 shown in FIG. 9.
  • FIG. 20 shows a position of the body-in-white in which the front carriage floor is freely accessible from below, the size relationships being based on the Figures 14 to 16 become clear.
  • Figure 20 shows that the center of gravity of the entire device in the projecting position is no longer above the base of the device.
  • boom 38 - cf. Figure 2 - which are connected to the lifting device 30 so that the corresponding tilting moment is supported.
  • the body-in-white cannot fall down due to its own weight, it is fixed to the load plane L - FIG. 1 - by standing on four stands 46, the stands having locking means in the form of hooks which are cut into suitable undercuts or the like. the body shell to be able to transmit tensile forces.
  • each stand 46 consists essentially of a cylindrical component, each of which is pivotably mounted on a pivot axis 48, so that the stand 46 can be pivoted through 90 °.
  • each stand has two pivotably mounted hook means 50 which, in the locked state, protrude radially to the longitudinal axis of the stand 46 and reach behind suitable undercuts or the like of the body-in-white.
  • an actuating cylinder 52 is provided for each stand, the piston rod 54 of which is articulated via a pull rod 56 to a sleeve 58 which surrounds the stand 46.
  • the completed vehicle is now released and can roll onto the floor of the hall under its own power.

Abstract

L'invention concerne un appareil de transport au sol, en particulier pour des carrosseries brutes d'automobiles, utilisé dans la production d'automobiles, qui présente des chariots (16) guidés le long du sol de halle et sur lesquels est disposé un dispositif de levage (30). Selon l'invention, le dispositif de levage peut tourner autour d'un axe de levage sur au moins 90 DEG et présente, dans le plan de charge, c'est-à-dire dans le plan de la table de levage, des moyens servant à mettre la table de levage et le produit à transporter reposant sur celle-ci dans une position en porte-à-faux, de telle sorte qu'il est possible d'avoir accès en particulier à une carrosserie d'automobile (70), au moins partiellement, depuis le dessous. Ainsi, il est possible, par exemple, de procéder au montage du moteur et de la transmission depuis le dessous, sans qu'il soit nécessaire de transférer la carrosserie brute dans des installations de transport suspendues ou autres complexes.
EP98936267A 1998-07-26 1998-07-26 Superstructure pour un appareil de transport au sol, et appareil de transport au sol Withdrawn EP1015300A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE1998/001844 WO2000006445A1 (fr) 1998-07-26 1998-07-26 Superstructure pour un appareil de transport au sol, et appareil de transport au sol

Publications (1)

Publication Number Publication Date
EP1015300A1 true EP1015300A1 (fr) 2000-07-05

Family

ID=6918663

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98936267A Withdrawn EP1015300A1 (fr) 1998-07-26 1998-07-26 Superstructure pour un appareil de transport au sol, et appareil de transport au sol

Country Status (3)

Country Link
EP (1) EP1015300A1 (fr)
AU (1) AU8533898A (fr)
WO (1) WO2000006445A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10319613A1 (de) * 2003-05-02 2004-11-25 Bürener Maschinenfabrik GmbH Übergabestation zum Transportieren von Skidrahmen von einem Skidförderer zu einem anderen Skidförderer einer Skidförderlinie
DE102005062691A1 (de) * 2005-12-28 2007-07-12 Siemens Ag Fördersystem
DE102012221162A1 (de) 2012-11-20 2014-05-22 Voith Patent Gmbh Vorrichtung und Verfahren zum Stapeln von Blechen
EP2767461A1 (fr) * 2013-02-15 2014-08-20 Siemens Aktiengesellschaft Dispositif de transport pour un dispositif de montage de véhicule
CN109305522B (zh) * 2018-10-25 2023-11-03 武汉东研智慧设计研究院有限公司 一种输送装配用双层滑板结构及双层升降滑板
CN109279346B (zh) * 2018-11-22 2023-11-10 东风小康汽车有限公司重庆分公司 一种转接系统及其应用

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4776085A (en) * 1985-11-08 1988-10-11 Honda Giken Kogyo Kabushiki Kaisha Apparatus for use in automobile assembling
US4937929A (en) * 1986-09-25 1990-07-03 Honda Giken Kogyo Kabushiki Kaisha Method and apparatus for transporting vehicle bodies, and vehicle assembling system
US5013203A (en) * 1988-04-20 1991-05-07 Nakanishi Metal Works Co., Ltd. Electrically driven self-propelled truck and apparatus for changing course thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0006445A1 *

Also Published As

Publication number Publication date
AU8533898A (en) 2000-02-21
WO2000006445A1 (fr) 2000-02-10

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