DE2253784A1 - INDEPENDENT HEIGHT ADJUSTABLE SUPPORT OR HOLDING DEVICE - Google Patents

Description

Patent attorneys Dipl.-Ing. EWeickmann,

Dipl.-Ing. H.Weickmann, Dipl.-Phys. Dr.K. Fincke Dipl.-Ing. F. A. Weickmann, Dipl.-Chem. B. Huber

XBI

8 MUNICH 86, DEN

AMF Incorporated P.O. Box 860820

777 Westchester Avenue, Möhlstrasse 22, phone number 983 921/22 White Plains

New York 10604

V.St.A. - ■

Automatically height-adjustable support or holding device

The invention relates to an automatically height-adjustable support or holding device for use in particular as a dispensing device for stored objects, with an upper Holding or support frame, which is connected to a lower frame by scissor joints and a spring device.

Such a device is according to the invention for better adaptation and adjustment of the suspension resistance designed such that in the plane of a frame at least a releasable torsion spring is arranged, which with its one Side on one of the scissor joints, with its other side attached to the frame assigned to it.

An embodiment of a device according to the invention is described below with reference to the figures.

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Show it:

Fig. 1 is a perspective view of a device according to

of the invention and
Fig. 2 is an enlarged and broken partial representation of one of the torsion springs.

In Fig. 1 is an automatically height-adjustable support or Holding device for use in particular shown as a dispensing device for stored objects. It consists in essentially consists of a base frame 10 and a table frame The table frame 11 is arranged at a distance above the base frame 10, both frames 10 and 11 are supported by scissor joints 12 connected with each other. The frames 10 and 11 are rectangular in shape, with a scissor joint 12 on each side of the rectangles intended.

A main compression spring 13 is arranged between the two frames 10 and 11 and acts directly on their central areas, so that the upper table frame 11 is lifted from the base frame 10 will.

The specialist is familiar that the upper table frame 11 can be provided with a table top, that the entire device can also be closed on its sides and that wheels or castors can be provided on the base frame 10 so that the entire device is transportable. However , it can also be used in a permanent installation, for example in a vending machine or similar facilities.

The main spring 13 generates a certain suspension resistance or a certain deflection per load unit. In which illustrated embodiment is also for each of the

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four scissor joints 12 a torsion spring 14 is provided, so that the entire device with five different suspension resistors levels or displacement amounts per load unit can work.

As can be seen from Fig. 1, the torsion springs are .14 in the Plane of the upper table frame 11 is arranged at its corners perpendicular to the respective scissor joint 12. The torsion springs 14 can, however, also be arranged on the base frame 10 or on both frames in each case on the top or bottom.

The torsion springs 14 have a central coil spring part and are radially protruding at their two outer ends Arms 14 'and 14 "are provided as shown in Fig. 2. The outer arms 14' are connected to the end 12 of one arm of a scissor hinge 12 aligned and attached to it by a U-shaped bracket 15. This is at the end 12 ′ of the joint 12 attached and provided with holes for receiving the spring arm 14 '.

The other end of the torsion spring 14 protrudes through an opening in an L-shaped strut part 11 'of the table frame 11, so that the spring arm 14 ″ in the direction of this strut part 11' lies. An L-shaped fastening block 16 is fastened to the strut part 11 'by a screw bolt 17 which passes through a slot 18 is guided in the strut part 11 '.

During operation of the device, the block 16 is displaced to the left with respect to the illustration in FIG. 2, around the torsion spring 14 to take effect. As a result, the projection 16 'of the block 16 is moved under the spring arm 14 ", so that this is locked against clockwise rotation. After tightening the screw bolt 17, the inner arm 14 ″ is the torsion spring 14 releasably connected to the table frame 11, since he

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between the projection 16 and the protruding edge of the L-shaped strut part 11 'is fixed. Around the inner arm 14 "to release the torsion spring 14, the screw bolt 17 is loosened and the block 16 is moved to the right, so that the arm 14 ″ can be moved past the projection 16 ′.

The invention thus creates a cheap and uncomplicated automatically height-adjustable device that is based on different Spring values is adjustable. The torsion springs can easily be considered in the already existing devices Art can be installed, and a quick and easy adjustment of the spring values by hand is possible.

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Claims (2)

P a te η tan s ρ r tt ο h 'e 1, automatically height-adjustable as Afegai »evor |» | ch1; ung for stored objects, with an upper »cold * vjszw. ti) a releasable torsion spring (14) is at least arranged, which is fastened with its one side on one of the scissor joints (12), with its other side to the assigned frame (11). ■ .- '. ".".-; ■ ■■'■;.' ■. "" ^: ■ - ■ '■ - ■; ■ 2. Apparatus according to claim 1, characterized in that the frame (10, 11) rectangular ^ örmig and on ^ eder rectangular side by a scissor hinge (12) are connected to each other, that the spring device (13) one between the central areas of the frame (10, 11) arranged helical spring is that four torsion springs (14) are provided for the four scissor joints (12), each of which is formed from a helical spring with spring arms (14 ¹ , I4 ^ir ) projecting radially at the ends and at the four corners one of the frames'. | 10> 11) are arranged perpendicular to the plane of the respectively assigned scissor hinge (12), and that in each case one of the spring arms (14 ¹ , 14 ") with one end of the respectively assigned scissor hinge (12), the other with is releasably connected to the associated frame (10, 11) » 309819/0313