DE6900891U - HEIGHT-ADJUSTABLE STEEL PIPE SUPPORTS - Google Patents

Description

Height-adjustable steel tube support egg?

The innovation relates to a height-adjustable tubular steel support, those of at least two partially encompassing one another There are pipes, of which the inner one has through-openings arranged at a distance from one another which can be pushed through with a 3-pin, which interacts with the force acting on the support when the load is applied to the outer tube sets off standing surfaces.

The height adjustment of such length-adjustable tubular steel supports generally takes place with the aid of a coarse adjustment and a fine adjustment. The coarse adjustment is through one of the pressure openings of the inner tube penetrating bolts or the like. causes the fine adjustment in that the inserted bolt is seated on the upper side of a cutter which is adjustable with respect to the outer tube. in the in general, the outer tube with an external thread is with provided two opposite longitudinal slots through which the one pushed through a Duipchtrittsöffsungs the inner tube Bolt reaches through and is supported on the adjusting nut when the inner tube is loaded.

The bolts assigned to the tubular steel supports are securely fixed with chains or brackets. These securing means These bolts protect against loss, but not against accidental damage Falling out.

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Di'pl.-lng. Heinz UiMf, PoUntanwolf D - 8 MöixUn 81, G »imo» lio & · 81 · Telephone: (0611) 483620

The innovation is therefore based on the task of ensuring that also prevents such bolts from falling out unintentionally will * To solve this problem, according to the invention proposed to provide the bolt between its two ends with a means which protrudes beyond its circumferential surface, However, it can be moved into the space enclosed by the bolt is * Should a bolt designed in this way go through the longitudinal slots of an opening tube and a passage opening in an inner tube are pushed through, then it only requires a corresponding expenditure of force ura to achieve that the means the a passage opening of the inner red can pass. Corresponding applies to removing the bolt.

The innovation is explained schematically below on the basis of two exemplary embodiments. It shows:

Fig. 1 is a longitudinal section through the central area of a height-adjustable tubular steel support in which two tubes arranged one inside the other and fixed against one another by a bolt between its two ends contains a spring-loaded detent,

FIG. 2 shows a section corresponding to FIG. 1 with a bolt which is provided with a leaf spring fixed to the bolt between its two ends.

As can be seen from FIGS. 1 and 2, a bolt extends through two opposing bores of an inner tube and at the same time through two opposite LMngsschlitze an outer tube 4. When loaded only partially shown The bolt 1 rests on a rotatable threaded nut 5, which engages with an internal thread 6 in an external thread 7 of the external tube 4. Around the threaded nut It is easier to turn because it has 8 openings for insertion a lever arm or with a »handle or the like».

Η · ίηϊ t «sief. ΡοΙ «ηίαην» α! Ί D - 8 MOndien 81. CbsimastfO & e 81 · Telephone: (0311) 48 38 20

To prevent the bolt 1 from accidentally falling out is in the bolt 1, namely in a bore 9 a substantially consisting of a spring 10 and a hemispherical head 11 "known per se arranged" which as such it is known that an exact graphic reproduction is not required * because this means 10, 11 between the both ends of the bolt 1 is arranged, it requires a certain amount of force, this means through the one passage To move opening of the inner tube 2 through when the bolt is to be removed, an accidental fall out will so prevented.

In the case of the embodiment shown in FIG. 2, a leaf spring 1? as a means provided to prevent the bolt from falling out unintentionally. This leaf spring is fixed at one end, the other end can slide in a groove l £ when moving by of the bolt 1 a force is exerted on the spring 13. The groove I ^ is of course beinessen so that the tongue when the bolt is moved axially, it can be pushed in or pulled out of the parts to be fixed against one another.

Of course, others may also be provided as the illustrated means, this can for example also be provided a spring which _T ± m od central region by a rivet. Like. On the bolt 1 is set, if this appears desirable.

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Claims (1)

DipL-ir.g. Heinz Lesser. Patent attorney D - 8 MOndian 81, CosimastiOBe Sl - Telephone: (0311) 43 33 20 PROTECTION CLAIMS ../Height adjustable tubular steel support T ^ consists of at least ~ two pipes partially encompassing each other, of which the inner spaced apart, opposite one another Has passage openings through which a 3bolt can be pierced through which the Support occurring force settles on surfaces that are in operative connection with the outer tube, thereby k e η ώ ζ e i c> h η e t that the bolt (1) is between « is provided with a means (lö, llj 13) at both ends, which protrudes beyond its circumferential surface, but in the from Bolt encompassed space is movable into it. Staralroh_ support according to claim 1, characterized in that it is marked chn et that the means consists of a known spring-loaded Ras £ e (10,11). Steel tube support according to claim 1, characterized in that the means consists of a leaf spring (13) fixed on the bolt (I ^, which can be moved into a hat (IM or the like) of the bolt. Patent attorney . St.