GB2178908A

GB2178908A - Suspension means

Info

Publication number: GB2178908A
Application number: GB08614166A
Authority: GB
Inventors: Torbjorn Danielsson
Original assignee: NORDISKA REDSKAPS AB
Current assignee: NORDISKA REDSKAPS AB
Priority date: 1985-06-11
Filing date: 1986-06-11
Publication date: 1987-02-18
Also published as: DE3619511C2; DE3619511A1; NO862314L; SE8502887L; NO862314D0; AU586481B2; SE448263B; GB8614166D0; AU5857286A; SE8502887D0; NO167347C; GB2178908B; NO167347B

Abstract

A suspension means for suspension of electrical conduits (10), cables or the like comprises a house (11) which is U-shaped in end view, one or more support rollers (12, 13) and a clamping means (14) for clamping of the conduits within the suspension means. The house is reversed U-shaped and comprises a connecting piece (15) and two downwardly depending shanks (16, 17) between which there is disposed a counter piece (19, 19A) for an upwardly acting clamping member for clamping of the conduit against the under surface of the connecting piece. The clamping means comprises a cradle (21) which is vertically movable by means of a clamping screw (20) and the screw passes through a cross bridge (19A) which has its ends affixed within keyhole like slots (26) in the lowermost portions of the U-shanks. <IMAGE>

Description

SPECIFICATION Suspension means The present invention relates to a suspension means for suspension of electrical conduits, cables and the like.

From SE-B 780734 & a suspension means for suspension of electrical conduits, cables and the like is known, which comprises a body, which is essentially U-shaped in end view, at least one support roller, the rotational shaft of which is disposed essentially perpendicular to the longitudinal direction of the conduit, and a bracket, which is movable between open and closed positions to open and close the conduit channel of the suspension means.

This previously known suspension means is characterized in principle in that the body has at least one space housing at least one support roller, which space is disposed outside of the confining surface of the conduit channel and which opens into said channel.

The just described suspension means functions very satisfactorily and has been approved in practise, but it has been found to have some drawbacks.

Thus, for instance one drawback resides in that the conduit sometimes in an almost fully tensioned state, have to be lifted slightly from the support rollers to permit insertion into the suspension means of the rubber sleeve which is normally required to evenly distribute the pressure of the clamping portion over the conduit in order to prevent damages to the insuiation of the conductors.

Another drawback resides in that the support roller or rollers of the practical embodiment of the known suspension means still protrude only moderately above the confining surface of the conduit channel. Therefore, the conduit may sometimes be damaged by the end edges of the confining surface of the conduit channel, particularly where the conduit is bent.

Athird drawbackofthe known suspension means is that it requires the conduit to be inserted from above or from the side thereof, in which case the conduit channel has to be open. Therefore, the suspension means will be somewhat elaborate in its design.

The present invention has aimed at providing a suspension means which does not exhibit the just described drawbacks and which, further, is simple and inexpensive in manufacture.

To the just mentioned end the suspension means according to the invention is deviced in such a manner that the body thereof is reversed U-shaped and comprises a connecting piece and two downwardly depending shanks, between which there is disposed a counter piece for an upwardly acting clamping memberforclamping ofthe conduit against the under surface of the connecting piece.

Due to the just described design of the suspension means according to the invention a much richer dimensioning of the diameter of the support rollers will be permitted than with the above described, previously known suspension means. Due to that richer dimensioning of the support rollers the tensioning of the conduit at the mounting thereof is facilitated.

Further, due to the just mentioned design, it will be unnecessary to lift the normally tensioned conduit for the insertion of the pressure distributing rubber sleeve into the suspension means.

Otherwise, that lifting of the conduit is rather cumbersome and may require use of special tools.

One embodiment of the suspension means according to the invention is characterized in that the clamping member comprises a preferably saddleshaped cradle, which is vertically movable by means of a clamping screw, which screw passes through a cross bridge, adapted to have the ends thereof affixed in keyhole like slots in the lowermost portions of the U-shanks.

This design permits manufacture of the suspension means essentially solely from stamped and pressed details with no need for costly welding work, for which reason the suspension means will be comparatively inexpensive in manufacture.

The invention will be described in more details below with reference to the accompanying drawing.

Fig. 1 is a very simple perspective view of one embodiment of a suspension means according to the invention, picked as an example; Fig. 2 is a side view of a second embodiment of the suspension means; Fig. 2A is a partial side view of a modification of the embodiment in Fig. 2; Fig. 3 is an end view of the suspension means in Fig. 2; Fig. 4 is a diagrammatic end view of a third embodiment of the suspension means according to the invention.

The suspension means according to the invention, which is intended to be used for suspension of electrical conduits 10, cables and the like comprises a house 11,which is essentially Ushaped in end view and in which, in the embodiments shown,two support rollers 12, 13 are journalled with the rotational axis perpendicular to the longitudinal direction ofthe conduit. In the house 11 there is disposed a clamping member, generally denoted 14, for clamping of the conduit 10 within the suspension means.

The house is reversed U-shaped and comprises a connecting piece 15 and two downwardly depending shanks 16, 17. On the upper surface of the connecting piece 15 there is affixed an eye 18 for hanging the suspension means on a hook, not shown.

In the embodiment as shown in Fig. 1 there is affixed between the lowermost ends of the shanks a bridge 19, which is provided with a clamp screw 20, at the screwing in of which a vertically movable cradle 21 within the suspension means will be pressed upwardly to first lift the conduit off from the support rollers 12, 13, and then to press the conduit from below against the under surface of the connecting piece 15 of the house. Preferably, the connecting piece 15 is provided with a saddleshaped pressure distributing insert 22, and the vertically movable cradle 21 is similarly provided with a pressure distributing insert 23.

The embodiment in Fig. 2, 2A and 3 is very similar to the one in Fig. 1, but differs from that embodiment on one hand in that the appearance of the shanks 16A, 17A, as seen in side view, differs from Fig. 1, and on the other hand in that the crossbridge 19A is affixed in a manner different from Fig. 1.

As distinguished from the embodiment in Fig. 1, the crossbridge 19A in the embodiment in Fig. 2, 2A and 3 is "loosely" inserted in that its ends are designed to be swung in and then to affixing engage with keyhole like slots 26 at the lowermost ends of the shanks 16A, 17A.

Fig. 2A illustrates a modificaiton wherein each one of the tongues 24,25 has been provided with an outwardly-upwardly open slot 27 to receive the stub shafts of the support rollers 12, 13. In this way it has been made possible to remove the support rollers 12, 13 when the conduit has been clamped.

In principle, the embodiment in Fig. 4 is similar to those described above but differs therefrom in that the house 11 is made from two halves 28, 29, which may be stamped and pressed or may comprise pressed profiles, and which halves are joined together by means of rivets 30 to form a U-shaped house.

Modifications and alterations as to details may be carried out within the scope of the inventive idea.

Claims

1. A suspension means for suspension of electrical conduits, cables and the like, comprising a house which is essentially U-shaped in end view and is adapted to rotatably journal two or more support rollers transverse to the longitudinal direction of the conduit, and a clamping member to clamp the conduit within the suspension means, characterized in that the house is reversed U-shaped and comprises a connecting piece and two downwardly depending shanks between which there is arranged a counter piece for an upwardly acting clamping memberforclamping of the conduit against the under surface of the connecting piece.

2. A suspension member according to claim 1, characterized in that the clamping member comprises a preferably saddleshaped cradle which is vertically movable by means of a clamping screw which passes through a cross bridge, adapted to have its ends affixed into keyhole like slots in the lowermost portions of the shanks.

3. A suspension means according to claim 1 or 2, characterized in that the support rollers are removably journalled in the U-shanks, for instance in that stub shafts of the support rollers are journalled in upwardly open but downwardly closed slots in the U-shanks or in that the shafts of the rollers are formed by screws with nuts that may be drawn out to one side of the suspension means.

4. A suspension means substantially as hereinbefore described, with reference to the accompanying drawings.