SE459893C - CLUTCH MOUNT FOR INSTALLATION PIPES - Google Patents

Description

The invented coupling sleeve is stated in claim 1 and an embodiment thereof is stated in claim 2.

The above-mentioned disadvantages are reduced or eliminated with the sleeve according to the invention in that the locking of the sleeve in the opening is in no way dependent on the installation pipe, or its insertion depth. It is also very easy to install the sleeve from the inside and / or outside of the opening, and no tightness-disturbing grooves in the sleeve wall are necessarily needed.

The invention is described in more detail below with reference to a close-up drawing.

Pig. 1 shows a socket in side view and in partial section, mounted in an opening in a central electricity. dyl.

Fig. 2 shows the sleeve seen from the end, in the axial direction.

Fig. 3 shows the internal position of locking tongues in a case where the sleeve can be mounted in the opening from the outside and / or the inside.

In figure 1 a coupling sleeve 1 is inserted into an opening present in a wall 2, whereby one or more resilient tongues 4, which after they have been bent when inserted into a recess 5, and after they have been restored, have locked the sleeve, while a base part 6 prevents the sleeve axially directed movement. An installation pipe 3 is inserted into a hole located in the sleeve, sealing preferably against a conical wall, while an annular or tongue-shaped ledge 7 in the mouth of the sleeve prevents the passage 3 of the pipe 3.

In Figure 2, the same numbering as in Figure 1 has been used. The locking tongue 4 and the recess 5 below it are preferably produced in a tool with spikes moving between each other, moving in the axial direction.

Figure 3 shows a sleeve according to an advantageous embodiment, which sleeve can be mounted in an opening in the wall 2 from both sides or alternatively only from one side. The tongues 4 and the depressions 5 below them can be designed in the tool with alternating barbs running alternately without the need for side wedges.

According to an advantageous embodiment, in the space 5 under the tongue 4 one or more partition walls 8 can be formed, which promote the restoration of the tongue 4 in the reading position and stiffen it.

According to an advantageous embodiment, a locking member similar to a closed film seal, a membrane or a blank 9 which can be opened by punching is formed at the mouth 7 of the sleeve 1.

The invention has been described above only with reference to one of its advantageous embodiments. The invention is not intended to be limited to this example only, but a number of variants are possible within the scope of the inventive concept presented in the following claims.

Claims (2)

10 15 20 459 893 P a t e n t k r a v Coupling sleeve for installation pipes, mountable in an opening in a wall in a central, a housing, etc. dyl. by means of the interception principle, it is known that in the socket (1) against the control panel's electricity. dyl. wall (2) facing end, one or more resilient tongues (4) are formed, below which a recess (5) is located, thanks to which the tongue (4) springs through the opening in the wall (2), and then springs out the reading sleeve. (1) at the wall (2) opening towards retraction, while a ledge (6) prevents the continued axial movement of the sleeve in the direction of insertion of the sleeve, and / or resilient tongues (4, fi9-3) are here placed alternately against each other so, that: the fluff can be inserted into the opening in the wall (2) from either side thereof, the wall (2) being enclosed between the ends of the oppositely directed tongues (4). '° Coupling sleeve according to Claim 1, characterized in that one or more partitions (8) are formed in the recess (5) below the locking tongue (4), which promote the restoration of the tongue (4) in the locking position and stiffen it.