GB2071919A

GB2071919A - A magnetic mounting bracket

Info

Publication number: GB2071919A
Application number: GB8104550A
Authority: GB
Original assignee: Individual
Current assignee: Individual
Priority date: 1980-02-15
Filing date: 1981-02-13
Publication date: 1981-09-23
Also published as: FR2476178A1; NL8100584A; AT375128B; GB2071919B; FR2476178B1; BE887496A; ATA50681A; DE3005686A1

Abstract

A mounting for a tile covering an inspection opening or the like, comprising an L-shaped bracket (1,5) with a portion (5) for projecting into the opening. The bracket may be adhesively secured to tiles defining the opening with its portion (1) whilst the portion (5) carries a permanent magnet (7) which is retained in a formlocking receiving member (6) mounted on portion (5). The receiving member (6) is an open box-shaped member into which the magnet (7), together with laterally arranged conducting shoes (8) of ferro- magnetic material which project beyond the magnet (7), is inserted. These conducting shoes (8) are mounted to "float" slightly in the receiving member (6). <IMAGE>

Description

SPECIFICATION A magnetic mounting bracket The present invention relates to a mounting for a tile covering an inspection opening or the like, and comprising an L-shaped bracket with a portion projecting into the opening on which a permanent magnet is retained.

For replacing inspection frames for inspection openings in tiled walls, L-shaped sheet metal brackets have already been proposed, which are adhesively secured to the tiles defining the inspection opening, and magnets are retained on the shanks of this bracket projecting into the opening. Thus, the tiles covering the inspection opening are detachably mounted on these magnets by means of a plate of ferromagnetic material cemented onto their rear surface. To obtain a flush fitting, the magnet is set back inwardly from the outer plane by the required amount. Forforming such a mounting it is generally necessary to have four brackets with suitable magnets which are mounted on the tiles defining the inspection opening by the tiler. These securing brackets relate to components which are required in large numbers and therefore have to be manufactured favourably as mass produced articles.

An adverse feature of known brackets has been found to be the mounting of the magnets, which are enclosed by a plastics material housing attached to the retaining shanks by rivets. The manufacturing costs of such brackets are considerably affected by the magnets and magnet mountings.

It is an object of the invention to provide, for the mounting of magnets in a simple and functionally favourable manner on a mounting bracket of the above kind.

According to the present invention there is provided a mounting for a tile covering an inspection opening or the like, comprising an L-shaped bracket with a first portion securable to the rear surface of tiles defining the opening and a second portion for projecting into the opening, and on which a permanent magnet is retained, wherein, on the second portion of the bracket, a form-locking receiving member for the magnet is provided.

Preferably, such a mounting is characterised by a box-shaped receiving member open towards the rear of the tile to be mounted, in which a magnet, together with conducting shoes of ferromagnetic material projecting beyond the magnet, is inserted.

A continuous groove is expediently formed in the upper sruface of the magnet, into which straps formed on the side walls of the box-like recess may be bent over to retain the magnet.

The form-locking receiving member for the magnet may easily be produced directly in one stamping operation and subsequent bending operations. The magnet itself is readily inserted in simple manner into the form-locking recess and is retained by straps provided thereon.

The invention also includes the proposal for providing conducting shoes in the region of the groove to have a recess in the region of the bent-over straps which is both deeper and wider than the groove cross-section of the magnet. The conducting shoes further are preferably radiused at their lower edge. These measures provide a "floating" mounting of the conducting shoes, which are therefore able to adapt themselves to be secured to the underside of the tiles or their ferromagnetic plates.

The present invention will be described further, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a perspective view of an L-shaped bracket with a magnet accomodated thereon; Figure 2 shows the bracket of Figure 1 in plan view; and Figure 3 is an enlarged view of a section on the line i - I of Figure 2.

The L-shaped sheet metal bracket shown has a securing portion 1 in which apertures 2 are formed, and may be adhesively secured to the rear surface of one of the tiles defining an inspection opening in such a manner that its portion 5, after the tile has been laid, projects into the opening.

At the free end of the retaining shank 5, a box-shaped magnet receiving member 6 projecting substantially at right angles therefrom is formed having side walls 61, to the upper surface of which straps 62 are moulded. In this box-shaped magnet receiving member 6, a magnet 7 having laterally located guide shoes 8 is accomodated. These conducting shoes 8 are made of ferromagnetic material and project beyond the magnet 7. The bracket is expediently made of non-magnetic material.

The magnet 7 and the conducting shoes 8 are secured in the magnet receiving member 6 by means of the two inwardly angled straps 62 which are pressed into a groove 71 formed in the magnet 7.

In the region of this strap 62 the conducting shoes 8 are provided with a recess 81 which is both deeper and wider than the cross-section of the groove 71.

The lower edge 83 of each conducting shoe 8 is radiused, so that such a conducting shoe 8 is mounted to float in a limited region. This provides a better adaptation or abutment of the upper edge against the ferromagnetic plates of the tiles to be retained, which cover the inspection opening.

In the region of the bending line 3 between the two portions 1 and 5 perforations 4 are provided, which determine the bending line in the manner of a nominal bending line. The portion 5 is therefore readily bent relative to the shank 1, for example, to adapt the vertical spacing of the magnet 7 from the tiles to be retained.

1. A mounting for a tile covering an inspection opening or the like, comprising an L-shaped bracket with a first portion securable to the rear surface of tiles defining the opening and a second portion for projecting into the opening, and on which a permanent magnet is retained, wherein, on the second portion of the bracket, a form-locking receiving member for the magnet is provided.

2. A mounting according to claim 1, in which the receiving member is box-like and open towards the

**WARNING** end of DESC field may overlap start of CLMS **.

Claims

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION A magnetic mounting bracket The present invention relates to a mounting for a tile covering an inspection opening or the like, and comprising an L-shaped bracket with a portion projecting into the opening on which a permanent magnet is retained. For replacing inspection frames for inspection openings in tiled walls, L-shaped sheet metal brackets have already been proposed, which are adhesively secured to the tiles defining the inspection opening, and magnets are retained on the shanks of this bracket projecting into the opening. Thus, the tiles covering the inspection opening are detachably mounted on these magnets by means of a plate of ferromagnetic material cemented onto their rear surface. To obtain a flush fitting, the magnet is set back inwardly from the outer plane by the required amount. Forforming such a mounting it is generally necessary to have four brackets with suitable magnets which are mounted on the tiles defining the inspection opening by the tiler. These securing brackets relate to components which are required in large numbers and therefore have to be manufactured favourably as mass produced articles. An adverse feature of known brackets has been found to be the mounting of the magnets, which are enclosed by a plastics material housing attached to the retaining shanks by rivets. The manufacturing costs of such brackets are considerably affected by the magnets and magnet mountings. It is an object of the invention to provide, for the mounting of magnets in a simple and functionally favourable manner on a mounting bracket of the above kind. According to the present invention there is provided a mounting for a tile covering an inspection opening or the like, comprising an L-shaped bracket with a first portion securable to the rear surface of tiles defining the opening and a second portion for projecting into the opening, and on which a permanent magnet is retained, wherein, on the second portion of the bracket, a form-locking receiving member for the magnet is provided. Preferably, such a mounting is characterised by a box-shaped receiving member open towards the rear of the tile to be mounted, in which a magnet, together with conducting shoes of ferromagnetic material projecting beyond the magnet, is inserted. A continuous groove is expediently formed in the upper sruface of the magnet, into which straps formed on the side walls of the box-like recess may be bent over to retain the magnet. The form-locking receiving member for the magnet may easily be produced directly in one stamping operation and subsequent bending operations. The magnet itself is readily inserted in simple manner into the form-locking recess and is retained by straps provided thereon. The invention also includes the proposal for providing conducting shoes in the region of the groove to have a recess in the region of the bent-over straps which is both deeper and wider than the groove cross-section of the magnet. The conducting shoes further are preferably radiused at their lower edge. These measures provide a "floating" mounting of the conducting shoes, which are therefore able to adapt themselves to be secured to the underside of the tiles or their ferromagnetic plates. The present invention will be described further, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a perspective view of an L-shaped bracket with a magnet accomodated thereon; Figure 2 shows the bracket of Figure 1 in plan view; and Figure 3 is an enlarged view of a section on the line i - I of Figure 2. The L-shaped sheet metal bracket shown has a securing portion 1 in which apertures 2 are formed, and may be adhesively secured to the rear surface of one of the tiles defining an inspection opening in such a manner that its portion 5, after the tile has been laid, projects into the opening. At the free end of the retaining shank 5, a box-shaped magnet receiving member 6 projecting substantially at right angles therefrom is formed having side walls 61, to the upper surface of which straps 62 are moulded. In this box-shaped magnet receiving member 6, a magnet 7 having laterally located guide shoes 8 is accomodated. These conducting shoes 8 are made of ferromagnetic material and project beyond the magnet 7. The bracket is expediently made of non-magnetic material. The magnet 7 and the conducting shoes 8 are secured in the magnet receiving member 6 by means of the two inwardly angled straps 62 which are pressed into a groove 71 formed in the magnet 7. In the region of this strap 62 the conducting shoes 8 are provided with a recess 81 which is both deeper and wider than the cross-section of the groove 71. The lower edge 83 of each conducting shoe 8 is radiused, so that such a conducting shoe 8 is mounted to float in a limited region. This provides a better adaptation or abutment of the upper edge against the ferromagnetic plates of the tiles to be retained, which cover the inspection opening. In the region of the bending line 3 between the two portions 1 and 5 perforations 4 are provided, which determine the bending line in the manner of a nominal bending line. The portion 5 is therefore readily bent relative to the shank 1, for example, to adapt the vertical spacing of the magnet 7 from the tiles to be retained. CLAIMS

2. A mounting according to claim 1, in which the receiving member is box-like and open towards the rear surface of a tile to cover the opening and in which the magnet, together with laterally located conducting shoes of ferromagnetic material projecting beyond the magnet, is inserted.

3. A mounting according to claim 2, in which on the upper surface of the magnet a continuous groove is formed into which straps formed on side walls of the box-like receiving member, are bent at right angles.

4. A mounting according to claim 3, in which the conducting shoes in the region of the groove on the magnet or in the region of the bent over straps have a recess which is both deeper and wider than the cross-section of the groove.

5. A mounting according to claim 4, in which the conducting shoes at their lower edge are radiused.

6. A mounting according to claim 1, in which in the region of the bend between the two shanks of the L-shaped bracket a plurality of apertures are provided in line.

7. A mounting substantially as herein described with reference to and as illustrated in the accompanying drawings.