DE2750135A1 - LOAD HANDLING DEVICE WITH LIFTING ARM SYSTEM CONSTRUCTED FROM PARALLEL CORE - Google Patents

Description

EYF- R & LINSER PATENTANWÄLTE 2750135

»» ATF.NTANWÄLTE: DIPL.-INe. ECK

H Ar7t EVER ♦ PhvTiKER HEIn

Z L I N S Γ R

KNUT OLOV FRISK Gävle / Sweden

ROBERT-BOSCH-STR. 12A D-6O72 DREIEICH

P.O. Box 1O 22 1O Telephone (O 61 O3) 37 66 Telex 4 185 385

Telegrams Corvus

IHl J

TßTßl) Ρ) 1 onkern

built-in Hebcarm system.

The invention relates to a load handling device a lifting arm system built up from parallel links, which is passed through the hinge points of the parallel link or parts connected to it is guided by the fact that a cardan shaft or an associated one Part by a vertical slide rail ο the like. and a second joint or a part connected to it by a horizontal slide rail ο the like. is performed, with the The handle of the load handling device and its load-bearing end move in a vertical or horizontal direction perform proportional to the respective movement of the above Joints or parts is.

809820/0867

If

Such load handling devices are often used as the hand or arm strength enhancement device of a worker or functionary used, which makes it possible, for example, a workpiece very precisely with respect to a machine or a tool to move. This means that workpieces of the same type can be fed to a processing tool, for example, over longer periods of time. The load handling device can be used to Have the task of repeated displacements of the load-bearing end, the handle between two, during the time in question perform certain repeated positions.

The present invention has for its object Adjustment of the handle and its load to be made easier by working in a similar way and crying as with a typewriter tabulator, at least in connection with the slide rail of one part or one hinge point, expediently but also that of the other part or the other hinge point, provides adjustable stop members that make it possible to Handle lightly and repeatedly on specific, repetitive Positions. Expediently, one can see in the load-handling device's stand that receives the slide rails Grooves in which at least one, expediently two lockable stop members adjustable and lockable arranged are. With the help of the mentioned grooves in the area of the slide rails or with one or two hinge points of the parallel links these connected parts can be attached within a relatively limited area slidable stop members, the can control a relatively large movement of the load-bearing end of the handle. According to one embodiment of Invention is one or both of the articulation points or associated therewith Parts mechanically assembled with a support member, for example in the form of a rail that or the like with the help of one or more consoles. by one of the ones provided in the stand Grooves is guided to the outside in such a way that said carrier organ can accommodate the movements of said joint point or points of articulation follow and at the same time take up adjustable stop members can, with the electrical limit switches provided on the stand work together.

B09820 / 0867

If one movement of the handling arm is carried out manually, it is sufficient to set and adjust in corresponding grooves attach lockable stop members that interact mechanically with a hinge point or a part connected to it.

The invention will now be explained in more detail with reference to the accompanying drawing, which schematically shows a load handling device and the same represents supporting stand.

The lifting arm system of the load handling device consists in the illustrated embodiment of a handling arm 1, the one Switching head 2 and a switching arm 3 provided thereon, which for example on electrical and / or hydraulic Way switches a hydraulic system not shown in the drawing, which is used in the form of a hydraulic cylinder to control executed drive source. The piston rod of the hydraulic cylinder acts on one of the hinge points the parallel link connected part 6, the end 7 of which between two parallel slide rails 8, 9 is guided. A groove 11 is worked into the stand 10 between the slide rails 8 and 9, from which an organ provided at the end 7 of the part 6 in the form of a rail carried by one or more brackets protrudes. On this rail, two stop members 14, 15, which can be locked with the aid of rotary knobs 12, 13, are slidably attached, can be operated by the limit switches 16 and 17, respectively. In this way you can so depending on the setting the attachment members 14, 15 on the rail 26 one exactly achieve certain movement of the handle 1 between two certain end positions.

In a similar manner, the articulated skin 18 is guided between parallel slide rails 19, 20. Between these rails, a groove 21 is worked into the stand 10, into which stop members 22, 23 are inserted so that they protrude into the path of movement of the hinge point 18 when the latter is moved by the action of the handle. These stop members 22, 25 can be adjusted as desired along the groove 21 with the aid of tensioning levers 24, 25, so that the movements of the hinge point 18

809820/0867

can be adjoined by these connection members 22, 23. Consequently a compact adjustment device is also obtained in this case, which is a required monitoring of the exact Allows guidance of the handling arm 1 between two predetermined positions to be taken alternately.

Although the invention is based on an embodiment thereof has been described, it can be modified as desired within the scope of the following claims.

Claims

809820/0867

Claims (4)

Claims. 1. Load handling device with a parallel link core Lifting arm system that is guided through the articulation points of the parallel links or related parts in that the one joint or one connected to it; Part through a vertical slide rail or the like. and the second hinge point or a part connected to it is guided through a horizontal slide rail, whereby the handle of the load handling device and whose load-bearing end executes a movement in the vertical or horizontal direction that is proportional for the respective movement of the above-mentioned articulation points or parts, characterized in that but expediently at least in connection with the slide rail (8, 9 or 19, 20) of one hinge point (5) or one part (6) also provided in connection with the stop members (14, 15 or 22, 23) which can be adjusted at the second hinge point (18) are that an easy and repeated setting of the handle (1) in certain predetermined, repetitive positions enable. 2. Load handling device according to claim 1, characterized in that at least one adjustable and lockable stop member (14, 15 or 22, 23) in one Groove (11, 21) is provided, which is incorporated into a stand (10) for the device which supports the slide rails (8, 9 or 19, 20) is. 3. Lasthantiergorät according to claim 1 or 2, characterized in that one or two joint parts (5, 18) or parts connected thereto (7) mechanically with a support member in the form of one of the groove or grooves (11, 21) protruding Consoles supported rail are assembled so that; said carrier organ of the movement of the joint point (5, 18) hv. · ;. '. the associated part (7) follows, said Tivigerorgan or the rail (26) the stop members (14, 15) ■ -; i nr, toi Ibar picks up, the zwockgestwe i se with on the StHndrr . : - <■;':: before η <". · Η electrical limit switches (16, 17) znr; a: - .: nenv; i rken. 809820/0867 ORIGINAL INSPECTED 4. Load handling device according to claim 3, characterized characterized in that the adjustable stop members (14, 15) made of slidable ones which can be locked on the support rail (6) and are provided with stop cams by means of rotary toggles (12, 13) Bodies exist. 809820/0867