EP0426612A1 - Dispositif d'arr˻t - Google Patents

Dispositif d'arr˻t Download PDF

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Publication number
EP0426612A1
EP0426612A1 EP90810787A EP90810787A EP0426612A1 EP 0426612 A1 EP0426612 A1 EP 0426612A1 EP 90810787 A EP90810787 A EP 90810787A EP 90810787 A EP90810787 A EP 90810787A EP 0426612 A1 EP0426612 A1 EP 0426612A1
Authority
EP
European Patent Office
Prior art keywords
locking
locking member
toggle lever
lever
locking device
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Withdrawn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
EP90810787A
Other languages
German (de)
English (en)
Inventor
Ernst Mischler
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.)
JAS AG JET AGE SYSTEMS
Original Assignee
JAS AG JET AGE SYSTEMS
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 JAS AG JET AGE SYSTEMS filed Critical JAS AG JET AGE SYSTEMS
Publication of EP0426612A1 publication Critical patent/EP0426612A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
    • B61K7/00—Railway stops fixed to permanent way; Track brakes or retarding apparatus fixed to permanent way; Sand tracks or the like
    • B61K7/16—Positive railway stops
    • B61K7/20—Positive wheel stops

Definitions

  • the present invention relates to a locking device for a carriage movable along a rail track according to the preamble of claim 1.
  • the rail track is often arranged at an elevated level relative to a working level, in particular in the area of the ceiling of a work space, the carriages being movable along this rail track in the transport plane.
  • the trolleys can have load-carrying members, for example in the form of baskets, platforms or the like, which hold the goods to be transported or the goods can be attached directly to rod-like elements which then form parts of the trolleys.
  • transport trolleys are used in large numbers, generally with the same standardized dimensions, locking devices being provided at predetermined points on the railroad track, by means of which the carriages movable on a railroad rail gradient can be stopped and brought back to rolling.
  • each locking member has a stop surface and a locking surface, wherein the locking surface protrudes into the path of movement of the carriage for locking.
  • Such locking devices work very reliably, but have problems if they are heavily loaded by the carriage, by using heavy carriages or a large number of carriages bumping into one another against a locking member. In this case, both the reliable locking of the carriage and the release of the locking are major problems. It is particularly difficult to release a locking element which acts reliably under heavy load, ie to bring it out of the locked operative position into the rest position when this locking element is heavily loaded.
  • the object to be achieved by the invention is therefore to design a locking device defined at the outset in such a way that it acts reliably and is easily and easily solved even under great stress, i.e. can be brought from the active position to the rest position.
  • This object is achieved according to the invention by the features listed in the characterizing part of claim 1.
  • a toggle lever to be used in connection with the proposed locking device consists of two articulated, one-armed levers which are also articulated at their other ends. If you practice one on the middle joint force directed at right angles to the connecting line of the outer joints, a large longitudinal force is generated in the direction of the connecting line, the greater the smaller the angle between the connecting line and the levers. If this angle is 0, an infinitely large force is theoretically required to overcome the longitudinal forces. On the other hand, only a small counterforce acting at right angles to the connecting line is required to bend the toggle lever. This means that a stop supported by an extended toggle lever is very strong and the toggle lever can still be moved from the extended to a bent position with a relatively small force.
  • the counterstop is formed by the one outer joint of the toggle lever formed from two articulated lever arms, which joint is then connected by a further joint connection to the axis of rotation of the pendulum-suspended locking member, while the other outer joint of the toggle lever is one fixed axis is pivotally mounted.
  • the counter-stop which lies in the swivel range of the locking member when the toggle is stretched and prevents it from pivoting out of the movement path of the carriage, describes an arcuate path when the toggle lever is bent and is thus brought out of the swivel range of the locking member.
  • the toggle lever can be actuated in a simple manner by an actuating device designed as a piston-cylinder unit, the piston-cylinder unit being able to be operated hydraulically, mechanically or electrically.
  • the proposed locking device is very simple to implement, since simple chain links can be used to form the lever arms of the toggle lever and to form the further articulated connection, which are available in any size and thickness.
  • the design of the locking member is also simple, so that it can be manufactured cheaply.
  • a triangular flat iron can be used, which has two sides of different lengths running approximately at right angles to one another, the pivotable fastening of this triangular locking member taking place in the region where the two sides running at right angles to one another meet. The shorter side then forms the locking surface, while the longer side is designed as a stop surface.
  • FIG. 1 shows a conveyor device for transporting goods, which has a rail track 3 arranged in the area of the ceiling 1 of a work space 2.
  • the arrangement is such that in the area of a work station 4, which is provided on the floor 7 of the work area 2, the rail track 3 is interrupted by a section 5 that can be raised and lowered.
  • This section is adjustable from a raised position, in which it forms a continuation of the rail track 3, into a lowered position shown in dashed lines.
  • Carriages 6, which carry support baskets 8, can be moved along the rail track 3. The direction of movement is indicated by arrows.
  • the rail track is provided with a locking device 9, by means of which the moving carriages 6 can be stopped.
  • the locking device has a pivotable locking member in a known manner, which has a stop surface and a locking surface, whereby by pivoting the Locking member can reach the locking surface from an active position protruding into the movement path of the carriage into a rest position removed from the movement path. This is described in more detail below.
  • further locking devices 10 and 11 are provided in the middle of section 5 and on the other side of the same, the distance of which approximately corresponds to the length of the carriage.
  • the locking device is accommodated in a rail 12 with a U-shaped cross section, which is open at the top and has a recess 33 at the bottom.
  • a support plate 13 is provided on each side of the rail, a toggle lever 14 being inserted between the two opposite support plates. 2, the toggle lever 14 is shown in the extended position.
  • the toggle lever 14 has two lever arms 15 and 16, which expediently consist of one chain link each.
  • the two lever arms 15 and 16 are connected to one another in an articulated manner with the aid of an axis 17 and the end of the lever arm 15 remote from the axis is pivotably mounted about an axis 18.
  • These Axle 18 extends transversely between the two support plates 13.
  • an articulated connection 19 is provided, which in turn consists of a chain link which is connected to the lever arm 16 with an axis 20 and is pivotably mounted about a fixed axis 21.
  • the axis 21 extends parallel to the axis 18 below this and is in turn fastened between the two support plates 13.
  • a locking member 22 is also pivotally mounted about this axis 21.
  • the locking member 22 is approximately triangular and has two sides 23 and 24 which run approximately at right angles to one another and are of different lengths, the shorter side 23 having a kink.
  • the beveled surface 25 is designed as a locking surface, as will be explained later.
  • the area along the longer side 24 serves as a stop surface.
  • FIG. 2 shows the active position of the locking member 22, in which the locking surface adjoining the side 24 projects through the recess 33 into the movement path of the carriage.
  • the surface 25 of the locking member is supported along the shorter side of the triangle against the axis 20, so that the locking member 22 can only be pivoted counterclockwise, while it is not possible to drive over it from right to left.
  • the three axes 17, 18 and 20 are in a common plane, so that the toggle lever 14 is stretched and is not bent by pressure on the axis 20 can be.
  • the axis 20 forms a counter-stop, which withstands any pressure on the part of the locking member 22.
  • An actuating device 26 is connected to the common connecting joint of the two lever arms 15 and 16 of the toggle lever 14, specifically on the axis 17.
  • the actuating device is provided with a crank mechanism 27, which is driven by means of a piston-cylinder unit or an electric motor.
  • the crank mechanism 27 is connected by a two-part connecting rod 28, 29 to the joint of the lever arms 15 and 16, specifically to the axle 17, the two parts 28 and 29 being coupled by means of a connecting piece 30, so that nuts 31, 32 the axial distance between the two parts of the connecting rod 28, 29 and thus the total length of the connecting rod can be set precisely.
  • the locking of the locking member 22 is released by the counter-clockwise rotation of the crank mechanism 27, the toggle lever 14 taking up the position shown in FIG. 3.
  • the lever arm 15 is pivoted counterclockwise about the axis 18, the axis 17 moving along an arc of a circle.
  • the articulation 19 also pivots in a clockwise direction, the axis 20 describing an arc around the axis 21.
  • the axis 20 serving as a counterstop comes out of the area of the stop surface of the locking member 22, so that it can freely pen around the fixed axis 21 can do.
  • the locking member 22 is pivoted clockwise into the position shown in FIG. 3, so that the passage of the carriage is released.
  • Axis 20 now serves to limit the pendulum deflection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
EP90810787A 1989-11-03 1990-10-16 Dispositif d'arr˻t Withdrawn EP0426612A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3936647 1989-11-03
DE19893936647 DE3936647C1 (fr) 1989-11-03 1989-11-03

Publications (1)

Publication Number Publication Date
EP0426612A1 true EP0426612A1 (fr) 1991-05-08

Family

ID=6392815

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90810787A Withdrawn EP0426612A1 (fr) 1989-11-03 1990-10-16 Dispositif d'arr˻t

Country Status (2)

Country Link
EP (1) EP0426612A1 (fr)
DE (1) DE3936647C1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5538221A (en) * 1991-11-23 1996-07-23 Joswig; Juergen Micromechanical valve for micromechanical dosing devices
WO1998054076A1 (fr) * 1997-05-30 1998-12-03 C Gunnarssons Verkstads Ab Appareil de positionnement

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4126210A1 (de) * 1991-08-07 1993-02-11 Dillinger Stahlbau Streckenabschluss fuer gleisgebundene fahrzeuge
DE102004042880A1 (de) * 2004-09-04 2006-03-09 Volkswagen Ag Schaltbetätigungsanordnung

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3631967A (en) * 1970-07-15 1972-01-04 Scans Associates Inc Accumulator conveyor system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3345039C2 (de) * 1983-12-13 1994-12-01 Rosenheimer Foerderanlage Positioniervorrichtung für einen Wagen einer Elektrohängebahn

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3631967A (en) * 1970-07-15 1972-01-04 Scans Associates Inc Accumulator conveyor system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 10, Nr. 372 (M-544)[2429], 11. Dezember 1986; & JP-A-61 166 425 (FUJI) 28-07-1986 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5538221A (en) * 1991-11-23 1996-07-23 Joswig; Juergen Micromechanical valve for micromechanical dosing devices
WO1998054076A1 (fr) * 1997-05-30 1998-12-03 C Gunnarssons Verkstads Ab Appareil de positionnement

Also Published As

Publication number Publication date
DE3936647C1 (fr) 1990-10-31

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