DE9402404U1 - Rung-spacer connection - Google Patents

Description

My file: Sch 79/19

Rung spacer connection

The invention relates to a bar-spacer connection, in particular in insulating glass panes, with a plug inserted into the longitudinal end of the bar, the cross-section of which has the width B in one direction and the thickness S transversely thereto, and with at least one clamp shot through the spacer running at right angles to the bar and into the plug, the plug being made of hard plastic with several openings that run transversely to the width B of the plug and form several chambers in the plug that take up (penetrate) its entire thickness S and between them walls that run transversely to the longitudinal direction L of the plug and parallel to one another, and the clamp grips through these walls.

Such a plug-clamp connection for rungs and spacers is known from DE-Gbm 87 02 042.

Based on this state of the art, the object of the invention is to improve the plug in a simple and cost-effective manner in its adhesive connection inserted into the rung and to secure it against being pulled out.

This object is achieved according to the invention in that sawtooth-like, inherently flexible clamping webs are formed on the two opposite narrow sides of the plug that form the thickness of the plug and protrude outwards in the opposite direction to the plug insertion direction.

Advantageous embodiments of the invention are set out in the subclaims.

The shot plug according to the invention has a very good adhesive connection in the rung due to its sawtooth-like, fan-like clamping bars and is secured against being pulled out in the rung because the clamping bars are deformed when inserted into the rung, thereby receiving a contact pressure against the rung and, due to their sawtooth shape, act against the direction of extraction and are inclined, whereby the contact pressure is increased even further when pulled out.

The plug is easy and inexpensive to manufacture and enables easy installation with an optimal rung spacer connection.

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An embodiment according to the invention is explained in more detail below with reference to the drawing. It shows:

Fig. 1 a side view in partial section of a rung-spacer connection using a plastic plug and a clamp,

Fig. 2 a front view of the plastic plug with rung and spacer,

Fig. 3 a view of the plastic plug on its broad side,

Fig. 4 a view of the plastic plug on its narrow side,

Fig. 5 a longitudinal section through the plastic plug.

The bar-spacer connection, particularly in the case of insulating glass panes, is made by means of a plug (2) inserted into the longitudinal end of the bar (1) and at least one clip (4) inserted through the spacer (3) running at right angles to the bar (1) and into the plug (2).

The plug (2) is made of plastic with several openings (5).

The openings (5) run transversely to the width direction (B) of the plug (2) and form several chambers in the plug (2) that take up the entire plug thickness (S) and, in between, walls (6 to 9) that run transversely to the plug longitudinal direction (L) and parallel to one another.

A total of six openings (5) are cut out in the plug (2), which are arranged on both sides of the plug width bisector in two rows of three openings (5) each. The openings (5) are the same size and have an angular, preferably square basic shape. Through these openings (5), the plug (4) has walls (6 to 9) running transversely to the longitudinal direction at a parallel distance from one another and a central wall (10) running in the longitudinal direction of the plug, which extends along the width bisector of the plug (2). The plug (2) is closed in cross-section at its front end on the shot side by the first wall (6) and at its other front end by the fourth wall (9). The first wall (6) forms a contact wall at the rung front end and between spacers (3) and protrudes at least in the thickness direction (S) of the plug (2) on both sides beyond the plug cross-section as a contact edge (wall) at the rung front end; the contact wall (6) preferably takes up the entire plug cross-section.

The plug (2) has a rectangular cross-section with edge sections (2a) that decrease in thickness in the width direction following the two rows of openings. On the two opposite narrow sides (SS) that form the thickness (S) of the plug (2), sawtooth-like, flexible clamping webs (11) are formed on the plug (2) that protrude outwards in the opposite direction to the plug insertion direction.

The sawtooth-like clamping webs (11) are preferably arranged in two rows offset from one another in the longitudinal direction (L) of the plug, each row taking up a part of the thickness (S) of the narrow side (SS) of the plug.

The plug (2) has a corrugation (12) on its two opposite broad sides (BS).

Preferably, the plug (2) is made of a hard plastic and is manufactured in one piece with the clamping bars (11).

For the rung-spacer connection, the plug (2) is inserted into the front end of the rung (1).

The plug (2) is inserted into the rung (1) until its contact wall (6) abuts the front end of the rung (1). The spacer (3), which is placed between two panes of the insulating glass pane, is then placed against the contact wall (6) and then the clamp (4) is shot through the spacer (3) and through the plug (2). The spacer (3) cannot be pushed further into the rung (1) by the contact wall (6). The sawtooth-like clamping bars (11) are slightly deformed when inserted into the rung (1) and form a secure adhesive connection with the rung (1) and secure the plug (2) against being pulled out of the rung (1).

The hard plastic material of the plug (2) provides a very good sealing effect, as the spacer (3) fits tightly against the plug (2) after the clamp (4) has been inserted.

The openings (5) allow the clamp (4) to be easily fired in, as the clamp (4) only has to penetrate the four walls (6 to 9) and can move freely in the openings (5). In addition, the walls (6 to 9) provide the clamp (4) with several fastening points one behind the other in the firing direction.

Claims (4)

Protection claims 1. Bar-spacer connection, particularly for insulating glass panes, with a plug inserted into the longitudinal end of the bar, the cross section of which has the width B in one direction and the thickness S transversely thereto, and with at least one clamp shot through the spacer running at right angles to the bar and into the plug, the plug being made of hard plastic with several openings that run transversely to the width B of the plug and form several chambers in the plug that take up its entire thickness S and between them walls that run transversely to the longitudinal direction L of the plug and parallel to one another, and the clamp grips through these walls, characterized in that sawtooth-like, inherently flexible clamping webs (11) are formed on the two opposite narrow sides (SS) of the plug (2) which form the thickness (S) of the plug (2) and project outwards in the opposite direction to the plug insertion direction. 2. Rung spacer connection according to claim 1, characterized in that the sawtooth-like clamping webs (11) are arranged in two rows offset from one another in the longitudinal direction (L) of the plug, each row taking up a part of the thickness (S) of the narrow side of the plug (SS). 3. Rung-spacer connection according to claim 1 or 2, characterized in that the plug (2) is closed at its front and rear end faces in the insertion direction and the rear end face forms a contact wall (6) which takes up the entire plug cross-section and is located between the rung (1) and the spacer (3). 4. Rung-spacer connection according to one of claims 1 to 3, characterized in that the plug (2) has a corrugation (12) on its two opposite broad sides (BS).