DE1902692U - HEIGHT-ADJUSTABLE SINGLE COLUMN TABLE. - Google Patents

Description

A. Ί 6 3 691 * 6/30/64

Applicant

Company ¥ illy Fleischer, Metallwarenfabrik, Essen-Werden, Ifeukircher Mühle 26-28

"Model name!"" ^:

.. - ■ "Height-adjustable column table"

Height-adjustable single-column tables are known in various designs: sowe.it- it is the type of height adjustment. Known are mechanical production via spindle drives and thrust deflection, then. Adjusting devices in which a compression spring or spiral makes the upper position possible, while the locking is carried out by jamming by means of an eccentric or thread. While the first-mentioned type does not achieve a firm stand of the telescopic column against wobbling and twisting, due to a smooth-running guide, the compression spring spirals have the disadvantage that when the brake is released, the table jumps upwards . Even if "the use of a brake to regulate or retard the spring force of the deficiency occurs in that the resetting can only be done by the pressure on the high-ranking table.

The shortcomings present in the constructions described above will be. eliminated in the construction described below. The furnace has a height-adjustable single-column table for which the Height adjustment takes place by means of a hydraulic pressure cylinder. The pressure generation required to operate the pressure cylinder, can be operated once by means of a hand lever or, under certain circumstances, a foot switch Pump. The pressure cylinder and the pump are in telescopic? Outlet pipe if the operating lever lifts with it during adjustment. With this design, the piston rod rests on one in the outer column, introduced support plate. FaTIa operation by means of a foot lever is to take place at the lower end of the outer column, the actuating device, i.e. the pressure cylinder and pump are expediently reversed and the piston rod then acts on the telescopic tube. The provision of the. extended telescopic tube is done by opening a return valve, that is introduced between the piston space and the storage container, and whose actuation "is coupled to the hand lever or the foot switch.

Another structural design provides for an arrangement in such a way that that no pump is used, but 2 cylinders, one of which takes over the function of the pressure cylinder, and expediently one identifies small diameter, while the second works as a pressure generating cylinder. When arranging the piston of the pressure generating: < Cylinder mechanically, i.e. an eccentric or similar pressed in by a spindle, and the resulting pressure is transferred to the pressure cylinder, which then performs the lifting function.

Figure I shows a section through an execution of the prescribed Firing. ■ -. "■" ■ "" .-

A pressure cylinder (2) with a piston (3) is installed in a telescopic tube (i), the piston rod (4) of which is supported on a support plate (.f.). The support plate (5) - is inserted at the lower end in the column frame — outer tube (6). By means of a pump (7) which is operated by a hand lever (8), pressure fluid is removed from the. The storage space (9) is pressed into the cylinder space (io). The resulting piston movement causes the telescopic column -. (T) to be lifted out of the outer column (6). In order to return the lifted telescopic column (1) to its basic position, a return valve (11) is opened in such a way that the hand lever (8) is operated in the opposite direction . Telescopic column and the reflux of the hydraulic fluid in the storage tanks. The leadership between inside. - and outer column is reached by in the outer column (6) introduced .guide parts (12). In the case of the present construction, the locking against lowering only takes place by maintaining the necessary pressure in the piston chamber (Io). Of course, mechanical locks can also be introduced, for example in the. Form of locking screws, eccentrics, etc. The actuation of these locking devices can either take place individually, or they can be actuated with the hand lever ws ± , / or the footrest. "-.

Claims (2)

S ο- h ü t ζ "a ns .p. Rü c h e ~ 1.) Höhenvepsteirbaren single column table characterized in that the Adjustment of the telescopic column causes that between the outer column and a pressure cylinder is inserted into the telescopic inner column, which is fed by a pump operated by means of a hand or foot lever and which effects the height adjustment. 2 ..) Height-adjustable single column table according to claim I, characterized., that causes the resetting of the extended telescopic column thereby that a backward motion coupled with the hand lever or the foot switch - valve is opened, or a back pumping is carried out. 3 ··) Height-adjustable single-column table according to claims I and II, characterized in that a second cylinder is used instead of a pump finds whose. Piston by mechanical means such as ^ spindle, eccentric term o.a. is pressed in, and through this on the pressure cylinder the one for lifting necessary pressure is generated * 4 «) Height-adjustable single column table according to claim I, II and III, characterized in that outside _: der..Feststellung der Höhenverstellung" by keeping the pressure constant in the pressure cylinder, additional mechanical interlocks between the telescopic columns are used, which are optionally actuated by the hand lever , be able. CHER 'ABRlK THE