DE7008203U - END BUTTON FOR HOLLOW SUPPORTING RODS, IN PARTICULAR FOR CURTAIN SETS - Google Patents

Description

611 password; Spreader

Kreap ft BÜtcemeister, 5 a So Lüdenscheid / Ktestfalen. Humboldtstrasse 9-11 End button for hollow support rods, especially for Vorbang— Trimmings.

The invention relates to an end button for hollow Support rods, especially for curtain sets, softer can be fixed at the end of the string by means of an expansion link Such end buttons are already known in designs. which the connection with the “rod end” is made with the help of expandable members that can be created in the sail by Drebea controlled by the button opposite the pipe. This is done in such a way that the «mostly« it threaded, the spreader-controlling pins are firmly anchored in the button. Such ribbon buttons, which are "grounded out of metal or made hollow," are so expensive to manufacture that they are For this reason, their use is often dispensed with.

The invention is based on the object of creating an end button of the type described at the beginning, which can be manufactured simply and cheaply, the production costs being kept so low that the end button can be used on all of the λυ-Miuilan curtain sets in question without that the total costs increase noticeably. This object erfindungsgemSss is substantially attained in that the spreading a \ Molded body is made of plastic, one end of which is used as a fastening »

member is designed for the outer button, while the other end of several resilient retaining arms are formed, which are in

ι Interior of the rod end, mini. Through this training

it is achieved that the end button consists of only two parts / which fall out of the plastic injection molding machine and can be put together without additional fasteners be able. Furthermore, the outside button can be used for different tube thicknesses because only the molded body is the must be adapted to the respective pipe diameter.

According to a further feature of the invention, a flange ring can be arranged between the fastening member and the holding arm being. This has the advantage that the end button is firmly seated is guaranteed at the rod end. Pas fastening member can expediently as one with the inner walls of the Outer button be formed cooperating clamping ring. This ensures that the two will hit the end button forming items can be safely connected to each other. Additional adhesives are not required for this. Dm the To improve the connection between the outer button and the molded body, it is recommended that the clamping ring have conically extending outer walls.

To secure the seat of the end button on the rod end, the Flange ring be designed like a plate and have a centering groove that receives the front end of the support rod.

In a preferred embodiment, the holding arms of the expansion member sit in pairs on a common bearing bracket. The outer button can also consist of plastic and be provided with a metallic coating on its surface.

Further details of the invention can be found in the specific description that follows.

In the drawing, the invention is in one embodiment shown. Show it:

788828325.6.70

1 shows a longitudinal section through an end button according to the invention

Fig. 2 is a plan view of the expansion member and

Fig. 3 is a bottom view of the expansion member inserted into a tube.

The end button is generally labeled Io. It consists of a molded body 11 made of resilient plastic and an outer button 12, which is also made of plastic. The molded body 11 is, as can be seen in particular from FIG. 1, at its one end as a fastening member 13 in the form of a clamping ring, which is received in a cavity 14 of the outer button and is held in a force-locking manner by the inner walls 15 thereof. At the other end of the shaped body 11, which is designed as an expanding member, several, in the exemplary embodiment shown, four holding arms 16 are formed which are seated in pairs on a common bearing bracket 17.

The holding arms 16 are resilient, their free ends being directed outward in their rest position, as it can be seen from FIG. 1.

Between the clamping ring IS and the bearing bridge 17 respectively. the Holding arms 16, a flange ring 18 is arranged, which has a plate-like shape. On its lower side is the Flange ring 18 is provided with a centering groove 19 which receives the rod end. The top of the flange ring 18 is used as a stop surface for the outer button 12.

The outer button 12 is also made of plastic and has a metallic cover 2o on its surface fitted.

Push the Halteanne 16 into the interior of a tube 21 to be able to, they are printed to the center and in this position held. As soon as the holding arms 16 have been introduced, they spring outward and clamp themselves firmly to the inner walls of the tube 21, as can be seen from FIG. 3 is. The upper edge of the tube 21 then lies in the centering groove 19 of the molded body 11.

As already mentioned, the embodiment shown is only an example implementation of the invention. This is not limited to this. There are still many changes and training possible. For example, the holding arms could be designed differently from the illustration. You could have additional claws that are in the inner walls of the Fix tube 21 in place.

25.0.70

Claims (1)

ι * ■ 4 * * ■■■ ■ · ^ · v « ^r PATENT ANWSLTE DiPL-ING. LUDEWIG DIPL.-PriYS. BUSi - 56 WUPPERTAL-BARMEN 611 Expectations : 1. End button for hollow support rods, especially for curtain sets, which are attached to the rod end s & ittels iron * Spreading member can be fixed, characterized in that the spreading member (Lo) is a molded body (11) made of plastic is, one end of which is designed as a fastening member (13) for the outer button (12), while the other end several resilient retaining arms (16) are formed, which clamp in the interior of the rod end. '' 2. End button according to claim 1, characterized in that between the fastening member (13) and the holding arms (16J a flange ring (18) is arranged. 3. End button according to claim 1 or 2, characterized in that the fastening member (13) is designed as a clamping ring which cooperates with the inner walls of the outer button (12). 4. End button according to claim 3, characterized in that the Klenoering (13) has conical outer walls. /% 5. End button according to claim 1 or 2, characterized in that that the flange ring (18) is plate-like and has a centering groove (19) that the end of the Receives support rod (21). 6. End button according to claim 1, characterized in that the Holding arms (16) sit in pairs on a position bridge (17). 7. End button according to claim 1, characterized in that the outer button (12) consists of plastic and is provided with a metallic coating on its surface (2o).