CS238538B1 - Supporting hinge with telescopic arms - Google Patents

Abstract

The invention relates to a support hanger for gripping means with extendable arms with smooth extension of the arms by means of a chain and a chain transmission located on the side of the hanger. The extension of the arms is controllable from two places on the crossbar. The suspension hooks can be placed on the outer and central ends of the extendable arms, so that the range of width of the placement of the gripping means is quite wide.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suspension hinge with extension arms with continuous adjustment of the extension width by means of a chain transmission.

When handling long material, it is necessary to grip the material at least in two places so that the load does not disproportionate from the horizontal position. In the case of thin, flexible loads, the spacing of the mutual points must be suitably selected so that the load is minimally deflected. With different lengths of these loads, the hinge spacing must be quickly and easily adjustable according to the length of the load. For this purpose the buoys have solid support suspensions with different spacing of suspension holes, or traverses with extendable arms. Working with traverses with extendable arms is easier than with fixed traverses, as well as the possibility of adjusting the appropriate pitch. Mostly they are. however, the extension arms are arranged such that they can be inserted into the cavity of the fixed beam and the extension is guided hydraulically or by means of a gear and a rack. The cavity arrangement of the telescopic boom beam requires a relatively robust center beam with precise internal machining and a hydraulically demanding telescopic mechanism. With this system, the suspension hooks can only be placed on the outer ends of the extension arms.

The above mentioned drawbacks are eliminated by a suspension suspension with extension arms with continuous adjustment of the extension by means of a chain transmission according to the invention, which consists in that it consists of a fixed suspension with a continuous beam and extension arms placed under the continuous beam, chains surrounding the sprockets. The telescopic arms are guided on both the yokes and the guide fingers mounted on the inner ends of the telescopic arms. The sprockets are located on the side of the yokes and are firmly connected to the beams. A chain tensioner is inserted into a closed chain circuit consisting of chains. The telescopic arms may have anchorage points for the catch hooks at the outer and inner ends of the telescopic slides.

238 538

The arrangement of the support suspension with extendable arms brings a number of advantages over the prior art telescopic retracting methods. These advantages include, in particular, a simple arrangement with inexpensive chain transmissions, unification of the profile of the continuous beam and the extension arms, the possibility of attaching the support hinges on the outer and inner ends of the extension arms and the possibility of controlling the extension of the arms from two places.

An example of such an arrangement is shown in Figures 1 to 3, wherein Fig. 1 is a side view of the overall arrangement of the support suspension with extendable arms; Fig. 2 is a cross-section of the support suspension at the sprocket shaft axis (section Δ-A); cross-section of the support hinge at the gripping fingers of the extension arm (section B - B).

The support hinge 1 consists of a rigid hinge 2 and extendable arms

3. (Fig. 1). The lower part of the fixed hinge 3 is formed by a continuous beam 4, the profile of which is identical to that of the extension arms 3. To the ends of the continuous beam 4 are fastened brackets 2 through which the extension arm 3 slides. These catches 6 can be positioned only at the outer or inner ends of the extension arms 3. The yokes 3 are provided on the same side with a gearbox 8 (FIG. 2) in which the sprocket 6 is fixedly connected to the axis 10. 10 is also attached a beam 11 for manually rotating the sprocket 3 and for shifting the chain 12 wrapped around the sprocket 2 " fastened to the extension arms J and into the closed circuit of these chains 12 a tensioner 14 is inserted to define the tension of the The guiding fingers 13 are fixed in pairs to the extension arms 3 (Fig. 3). By their projections 16, they can possibly tilt out the extension arms 3 when they are inserted or when the load is suspended by the inner suspension hooks. that the extension arms 3 are displaced in the yokes 2 »fastened at the ends of the continuous beam 4» while the extension is carried out by means of a simple chain transmission by a chain 12 located on the side in the space of the extension arms 3. at their outer ends, but also at their inner ends, which also allows for minimum spacing between load-bearing attachments 2 *

Claims (3)

SUBJECT OF THE INVENTION 238 538 A suspension suspension with extension arms with a continuous extension of the extension by means of a chain transmission, characterized in that it consists of a fixed suspension (2) with a continuous beam (4) and extension arms (3) located under the continuous beam (4), ) are fastened on the side to the chains (12) surrounding the sprockets (9) and are guided on both the yokes (5) and the guiding fingers (13) fixed on the inner ends of the extension arms (3). 2. The suspension according to claim 1, characterized in that the sprockets (9) are located on the side of the yokes (5) and are firmly connected to the beams (11), wherein a tensioner (14) is inserted into a closed chain circuit composed of chains (12). ) of the chain (12). Supporting hinge according to Claims 1 and 2, characterized in that the extension arms (3) have retaining points for catches (6) of the suspension hooks (7) at the outer and inner ends of the extension arms (3).