Control box with cable-strain relief

Abstract

Control box, in particular for adjustable items of furniture, such as vertically adjustable tables for example, comprising: a control box housing and a mains plug in a wall of the control box housing, wherein the control box housing has a strain relief device for a mains cable with a main cable socket for connection to the mains plug, characterized in that the strain relief device has an, in particular channel-like, mains cable clamping guide which is arranged upstream of the mains plug in the insertion direction of the mains cable socket and so as to run transversely to the insertion direction in the control box housing and therefore below the mains plug such that the mains cable socket, when it is inserted into the mains plug, at least partially closes the mains cable clamping guide on the top side in such a way that the associated mains cable does not move out of the mains cable clamping guide.

Claims

1. A control box for adjustable items of furniture, comprising: a control box housing; and a mains plug in a wall of said control box housing, wherein said control box housing has a strain relief device for a mains cable with a mains cable socket for connection to said mains plug, characterized in that said strain relief device has a channel-like mains cable clamping guide arranged upstream of said mains plug in the insertion direction of said mains cable socket and so as to run transversely to said insertion direction in said control box housing and therefore below said mains plug such that when said mains cable socket is inserted into said mains plug, said mains cable socket at least partially closes said mains cable clamping guide on the top side in such a way that the associated said mains cable does not move out of said mains cable clamping guide.

2. The control box of claim 1 wherein said mains cable clamping guide has at least two opposite clamping lugs, clamping walls, or clamping jaws.

3. The control box of claim 1 wherein said mains cable clamping guide has at least two opposite clamping lugs, clamping walls, or clamping jaws that extend parallel to one another.

4. A control box system, comprising a control box; a control box housing; a mains plug in a wall of said control box housing; and a mains cable with a mains cable socket, wherein said control box housing has a strain relief device for said mains cable with said mains cable socket for connection to said mains plug, characterized in that said strain relief device has channel-like mains cable clamping guide arranged upstream of said mains plug in the insertion direction of said mains cable socket and so as to run transversely to said insertion direction in said control box housing and therefore below said mains plug such that when said mains cable socket is inserted into said mains plug, said mains cable socket at least partially closes said mains cable clamping guide on the top side in such a way that the associated said mains cable does not move out of said mains cable clamping guide.

5. The control box system of claim 4 wherein said mains cable is guided in said mains cable clamping guide in a clamped manner and said mains cable socket to fully cover said mains cable clamping guide in said insertion direction, and said mains cable is inserted into said mains plug so as to form a loop in said mains cable.

6. The control box system of claim 4 wherein said mains cable clamping guide has at least two opposite clamping lugs, clamping walls, or clamping jaws.

7. The control box system of claim 4 wherein said mains cable clamping guide has at least two opposite clamping lugs, clamping walls, or clamping jaws that extend parallel to one another.

Description

BRIEF DESCRIPTION OF DRAWINGS

(1) The invention is based on the surprising finding that, owing to the specific arrangement and orientation of a cable clamping guide in relation to the mains plug in the control box housing, the control box housing only has to be slightly modified so that this is not associated with a high level of costs and the strain relief, including the mains cable socket, can be realized and also reversed again in a simple manner.

(2) Further features and advantages of the invention can be found in the appended claims and the following description in which an exemplary embodiment will be explained in detail with reference to the schematic drawings, in which:

(3) FIG. 1 shows a perspective view of a control box housing on a connection side with a mains plug;

(4) FIG. 2 shows a similar perspective view to FIG. 1, but with a mains cable already inserted into a mains cable clamping guide;

(5) FIG. 3 shows a similar perspective view to FIG. 2, but now with a mains cable socket of the mains cable also inserted into the mains plug; and

(6) FIG. 4 shows a partially sectioned view along line IV-IV in FIG. 3.

DETAILED DESCRIPTION

(7) FIG. 1 shows a bar-type control box 10 for controlling a vertically adjustable table (not shown). The control box 10 has a control box housing 12 with opposite connection sides 14 and 16, to which electrical cables can be connected, and a top side 18 and also a bottom side 20 and side walls 22, 24.

(8) The control box 10, in the connection side 14, also has, centrally in this example, a mains plug (built-in plug) 26 for supplying electrical energy to a controller etc. (not shown) which is located in the control box 10. The mains plug 26 is arranged such that a mains cable socket 28 (see FIGS. 2 and 3) of a mains cable 36 (see FIGS. 2 and 3) has to be inserted into the mains plug 26, in this example, substantially normally to the connection side 14.

(9) The connection side 14 has a lower projection 30 which, in this example, extends somewhat below the mains plug 26 over the entire width of the connection side 14. Two projections or clamping walls 32, 32, which are situated opposite one another and run parallel to one another, are arranged centrally on the projection as part of a mains cable clamping guide 34 for guiding the mains cable 36 in a clamped manner, wherein the clamping walls have different geometries in this example. The height of the clamping walls 32 is selected such that the mains plug 26 is still accessible to the mains cable socket 28. The effect of guiding in a clamped manner is achieved by suitably selecting the distance a (see FIG. 4) between the two clamping walls 32, 32 with respect to the mains cable 36 to be used to be preferably equal to the thickness d of the mains cable 36 (see FIG. 4) or somewhat smaller.

(10) In FIG. 2, the mains cable 36 has already been laid in the mains cable clamping guide 34 and is therefore fixed therein by clamping. The mains cable 36 with the mains cable socket 28 is arranged in the mains cable clamping guide 34 such that the mains cable socket 28 can still be inserted (see FIG. 3) into the mains plug 26 so as to form a loop (see FIG. 3).

(11) As can also be seen by consulting FIG. 4, the mains cable 36, when in the state shown in FIG. 3, is prevented from moving upward out of the mains cable clamping guide 34 again by the inserted mains cable socket 28.

(12) The features of the invention which are disclosed in the present description, in the drawings and also in the claims can be important both individually and in any desired combinations for the purpose of implementing the invention in its various embodiments.