FI84677B - LEDNINGSKANAL. - Google Patents

Abstract

A wiring duct (10) has an essentially rectangular cross-section with an open front side for the insertion and removal of electrical leads (1,2). Longitudinal strips (11), with an L-shaped cross-section, are integrally formed parallel to the base of the duct on the open side of the wiring duct (10), the shorter limb (12) of which strips (11) is directed towards the base of the duct. The open side of the wiring duct (10) is bridged with the aid of brackets (20). The latter have a hook-shaped bracket foot (21), next to which sprung tongues (23) are arranged, together with a likewise hook-shaped bracket head (22). The bracket foot (21) is plugged onto one of the longitudinal strips (11, 12) in a sprung manner. The bracket (20) can be pivoted in a sprung manner for the insertion or removal of leads (1, 2). <IMAGE>

Description

5 1 84677

Wire Channel.

Ledningskanal.

The present invention relates to a conductor channel according to the type definition of claim 1, having a substantially rectangular cross-section and one open side for the insertion of conductive electrical conductors.

10

A large number of conductor channels are known, for example, from DE-A 21 23 958, DE-B 12 16 957, 12 76 153, 20 17 232 or also from DE-U 77 11 728, 84 33 145. They are extruded thermoplastic, extruded aluminum or profiled steel plate. The open side of the ducts can be covered with a deck.

In order to prevent electrical wires already placed in the conductor duct from falling out when the cover is removed, the open side of the conductor-20 ducts is bridged by means of clamps on the spacer plates.

These clamps must meet a large number of conditions. They must be able to be fastened at arbitrary points along the duct 25 in order to adapt to the insulation requirements of each construction site. The connection between the terminal and the duct must be strong to ensure that the wires do not fall out. The connection must be disconnected so that the wires can be removed or re-inserted in each situation. 30 The clamps must not prevent the cover from being opened and removed and must work equally well in horizontal, vertical and top installations.

DE-U 84 33 145 discloses a structure in which the pin-35 teas are in the shape of a symmetrical bridge. Behind the flat, flexible front panel, a back panel is formed, each end of which is formed as a hook. These hooks interlock with the correspondingly profiled end strips at the bottom of the 2 84677 channels. The bottom of the duct and all parts of the clamps must be flexible so that the clamps can be fastened in place and, if necessary, removed again.

5 Simple, metal or plastic clamps have been used for many years to bridge the open side of conductor ducts. Both ends are bent into a hook shape and are locked from behind at the latch strips on side 10, the normal function of which is to hold the cover in place. These clamps not only prevent the electrical wires already placed in the installation duct from falling out when the cover is removed, but they also hold the side walls of the duct formally together.

15

DE-OS 21 23 958 discloses another structure in which the spacers closing the open side of the conductor channel are fastened only at one end. The fastening between the spacer plate and the channel is effected by means of connecting members which, for example, like a push button, are locked to a corresponding bore in the spacer plate. The spacers may still be supported against the bottom of the channel by additional supports. Also in this structure, the duct has to be machined afterwards, in addition to which the installation is complicated and the strength is relatively small, so that this structure could not practically punch itself through.

The object of the present invention is to provide a conductor channel of the type described above, the open side of which can be securely and installation-friendly bridged to arbitrary points by means of simply fastened and equally easily removable clamps without hindering the subsequent insertion or removal of electrical cables.

This object is solved by a conductor channel with the special features according to the characterizing part of claim 1.

35 3 84677 The advantage is thus that the clamps can actually be fastened in an arbitrary position and, if necessary, they can be moved to the right or left 5 position without difficulty, without slipping in a vertical position, so that they can be flexibly adjusted due to different design of the main and base parts. can be turned to the side at the same time to insert or remove the wires without having to remove any joints or compress the walls of the duct and without in any way preventing the placement and removal of the actual cover.

Another preferred development of the invention comprises 15 flexible tabs on both sides of the heel hook element, which rest against the longitudinal strips and which, together with the groove in the heel hook element, ensure that the clamp always resiliently resets in its basic position. The wide structure of the main groove 20 then allows the side walls of the duct to be resiliented when the cover is attached or removed.

The tongues and / or the heeled hook element are preferably provided with a bevel for 25 minutes, which facilitates the attachment of the clamp according to the invention to the longitudinal strips of the lower part of the duct.

In addition, it is recommended that the lower part of the duct and the lid be made of fiber-reinforced plastic. This makes it possible to make sturdy and strong conductor ducts and covers without the use of metals.

The invention and its advantages will be explained in more detail below with reference to a structural example of the reference shown in the drawing, in which: 4,84677

Fig. 1 shows a cross-section of a conductor channel according to the invention when attaching a cover,

Fig. 2 shows a cross-section of 5 conductor channels according to the invention when inserting additional conductors,

Fig. 3 shows a cross-section of a conductor duct according to the invention with attached lids, Fig. 4 shows a top view of a coating according to the invention, and

Fig. 5 shows a cross-section of the clamp of Fig. 4 along the line V-V.

15

Figures 1-3 show a conductor duct 10 with a duct bottom, two duct side walls and one open front side for the insertion of wired electrical wires 1,2. From the free ends of the side walls of the duct, L-shaped longitudinal strips 11 extend in the direction of the bottom of the duct 11 into the free opening. The short arms 12 of the longitudinal strips 11 are bent towards the bottom of the channel.

To bridge the side of the open channel, a clamp 25 20 is used, the base part 21 of which can be resiliently fastened to the longitudinal strips 11. For this purpose, the base part 21 consists mainly of a hook element 24 and at least one flexible tongue 23 with chamfers 29, 29 '. The end 22 of the clamp 20 is bevelled from the side facing the longitudinal strip 11, for example plump, and can thus be pressed behind the longitudinal strip 11 with a small force.

In this position shown in Fig. 2, the clamp 20 is fixed to the longitudinal strip 11 so that its base part 21 cannot be detached but can nevertheless be arbitrarily moved laterally. On the main side, on the other hand, it 5 84677 can be flexibly pressed into the wiring duct 10 so that a gap is left between the clamp 20 and the duct 10, through which new wires 1 can be introduced into the duct 10 in the simplest possible way.

Finally, Figure 3 shows the channel 10 with the clamp 20 in place and the lid 30 locked.

Figures 4 and 5 show the cover 20 on a larger scale. It has a clamp base 21 consisting mainly of a hook element 24 and two flat, flexible tongues 23 formed on each side thereof. The hook element 24 has a groove 25. Its cross-section corresponds to the cross-section of the short leg 12 with a small clearance 15 so that the clamp 20 can be moved but with a slight inclination, it engages the longitudinal strip 11, 12. The hook element 24 and the tabs 23 are dimensioned so that the clamp 20 independently settles in the basic position 20 shown in Fig. 3.

The end 22 of the clamp consists of a second hook element, the outer surface 26 of which is bevelled, i. a plump to facilitate engagement of the clamp end 22 behind the longitudinal strips 11 25.

In addition, the head-side hook element 22 is also provided with a groove 27, which, however, has a wider cross-section so as not to prevent the side walls of the channel 30 from being resiliented 30 when the cover 30 is placed or removed.

Claims (4)

1. A duct (10) having the main rectangular cross-section and an open side, the closure being closable by a readable cover (30), for inserting the electrical wires (2) to be installed, from the front end of the duct sidewalls, approximately parallel to the longitudinally extending longitudinal strips (11) of the channel with L-shaped cross sections, the short leg (12) of which is directed towards the bottom of the channel, and with clamps (20) bridging the open side of the channel, the clamps (20) having at the longitudinal strips (11, 12) resiliently fixable clamping feet (21), which are provided with hinging elements (24) behind the longitudinal strips (11, 12) and projecting tongues (23) over the longitudinal strips (11, 12). which abut evenly against the longitudinal strips (11), and ensure that the clamps (20) always pose a resilient spring to their basic position, and clamp heads (22) with additional hook elements (26), characterized therein v, that the foot-side hook elements (24) have a latch (25) which encloses the short leg (12) with a small clearance, and that the main-side hook elements (26) have a bevel which facilitates the notch at the channel (10) ), and a wide latch (27) interacting with the molding (12). 2. A conduit according to claim 1, characterized in that a tongue (23) is placed on both sides of the foot-side hook element (24). 3. A duct according to claim 1 or 2, characterized in that the tongue (23) and / or the foot-side hook element (24) is provided with a bevel (29, 29 ') which facilitates the fixation of the longitudinal strip ( 11). 4. Conduit duct according to claim 1, 2 or 3, characterized in that the duct duct (10) and possibly the lid (30) consist of fiber-reinforced plastic.