DE3035907A1 - Clamp for attaching boards to square tubes - esp. in balustrade is U member esp. of polypropylene with fixing screw - Google Patents

Abstract

A clamp of high polymer material for fixing cladding elements such as boards to square tubes of a frame, for example for forming a balustrade, fence, barrier or the like, is of substantially U-form, the web corresponding to one dimension of the square tube and the flanges being designed to fit around the other dimension of the tube; these flanges have inward projecting tips at their free edges to encompass part of the fourth side of the tube. The flanges also contain aligned holes for a fixing screw to pass through and into the cladding. Preferably, in the unstressed state the flanges converge towards the ends remote from the web and are forced outwards when fitted around the tube so as to bear against the square tube under prestress. The edge faces ( of the flange tips are pref. cut to an angle. The clamp can be fixed to the boarding with an intermediate washer surrounding the hole in the adjacent flange and having its central hole aligned with it, the washer having the form of a truncated cone. Preferred material for the clamp is injected moulded polypropylene.

Description

Fastening clip for cladding element to hold

on square tubes The invention relates to a mounting bracket Made of high polymer material with resilient legs for cladding element for Holders on the square tubes of a frame to form a cladding system with a large number of identical bar-shaped cladding elements that are lined up in a row, whose brackets engage behind the square tubes with their legs.

In a known mounting bracket of this type (DE-GM 1878 148, Figures 19, 20) engages behind an inner @ alb of the square tube Flange part of the fastening element, the square tube. His springy thighs penetrate the wall of the square tube, are designed like a push button and For their part, intergrate the cladding element to be connected, indene them in corresponding Engage indentations of this cladding element. The mounting bracket is Can only be used for square tubes and cladding elements depending on a specific shape. To this extent, it is part of a four-pipe with inner profiles and cladding elements system for the formation of fences with a comprehensive system of internal profiles.

Their area of application is therefore extremely limited.

In addition, the connection established with it is practically indissoluble.

It is also a lattice construction, especially for railings or Fences known '(DE-PS 20 20 372), which are used to connect cladding elements is used with a C-shaped connecting strut. With this grid construction the cladding elements are screwed onto retaining washers that are in the Legs of the C-shaped connecting strut are caught.

The fastening screws penetrate the cladding elements necessarily complete and are on the outside of the cladding elements visible.

The construction is also relatively complex.

Lattice structures of the type described are also suitable for balcony parapets known, for which the above applies.

(Brochures from Hagal-System-Vertriebsgesellschaft mbH, Ruhrorterstr. 1, 6800 Mannheim 81).

Furthermore, it is recognized that balcony balustrade elements by means of dowel-like To attach fastening elements to square frame elements (systems from the company Fischer, Tumlingen).

The invention is based on the object of a fastening clip of the type mentioned so that they can be used for standard square tubes made of any material and for any designed cladding elements, in particular also for balcony balustrade elements made of wood without damaging the square tubes or the cladding elements are applicable and easy to handle and as well as thanks Their simple structure and their universal usability make them much cheaper Balcony parapets, fences, banisters and the like leads.

L e r s e i t e

Claims (6)

P a t e n t a n t a n s p r ü c h e: 1. Fixing clamp made of high polymer Material with resilient legs for the cladding element to be held on the square tubes a frame3 to form a cladding system with numerous identical, stringed bar-shaped cladding elements, the brackets of which are the square tubes engage behind with their legs, characterized in that the with the connecting element (20) screwable (21) brackets (10) U-shaped and one in the fastening position have a U-shaped web (10a) which can be placed on a flat outer wall of the square tube (16), whose length (a-a) corresponds to the diameter of the square tube (16) and whose U-legs with inwardly angled end sections (10d, 10e) and with concentric mutually lying recesses - (11, 12) are provided. 2. Fastening clip according to claim 1, characterized in that that the length (b-b) of the U-legs (10b, 10c) abgencmmenen in the other direction Corresponds to the diameter of the square tube (16) and that this U-leg is in the fastening position under elastic pretension on the adjacent walls of the square tube (16) can be applied and without pre-tensioning an acute angle (CÇ) to the U-web (lOa) lock in. 3. Fastening clip according to one of the claims 1 or 2, characterized characterized in that the surfaces (13, 14) of the free edges of the end sections (10d, 10e) an angle (ß) to the inner surface of the wall of the adjacent U-leg (10b or lOc) include. 4. Fastening clip according to one of the preceding claims, characterized in that the U-leg adjacent to the cladding element (20) (10c) provided with a spacer washer (15) in the region of its recess (12) is. 5. Fastening clip according to claim 4, characterized in that that the spacer disk concentrically enclosing the recess (12) is a concentric one Recess (17) and the shape of a truncated cone (in Figure 1 by dashed Line indicated). 6. Fastening clip according to one of the preceding claims, characterized in that the end sections (lOd, lOe) by an injection molded part made of polypropylene clip (10) in the fastening position under elastic Preload can be applied to the outer surface of the square tube (16) and without preload Include an acute angle (t ') to the associated U-leg (10b or 10c).