GB2141165A

GB2141165A - Hollow plastics frame member

Info

Publication number: GB2141165A
Application number: GB08315780A
Authority: GB
Inventors: Friedrich Forster
Original assignee: Individual
Current assignee: Individual
Priority date: 1983-06-08
Filing date: 1983-06-08
Publication date: 1984-12-12
Also published as: GB8315780D0; GB2141165B

Abstract

A hollow plastics member for a window or door frame comprises a C-shaped guide channel (4) for the actuating rod (5) of the locking mechanism. The channel (4) may have slide ribs (10) and marginal beads (7) or guide margins (12) for cooperation with an actuating rod (5) of hat-shaped (dished) cross- section; alternatively the guide channel (4) may have slide ribs (10) and guide edges (11) for cooperation with an actuating rod (5') having a U-shaped channel or circumferential recess into which the edges (11) extend. <IMAGE>

Description

SPECIFICATION Hollow plastics section for a casement window- or door, and a said window or door comprising a said section This invention relates to a hollow plastics section for use in a casement window or door, and also to a said window or door comprising a said section and having at least one associated actuating rod.

The known casement windows or doors having frames composed of hollow sections, have (at least on the side which is swung out) an actuating rod which is guided in a guide secured to the frame. The actuating rod or a plurality of actuating rods can be moved to and fro in their longitudinal direction by means of a pivotable handle, so that locking members secured to the actuating rod can be moved into a locking- or an unlocking position. In the locking position the locking members of the window- or door abut against and behind abutments which are secured to the window-or door frame.

The known guides for actuating rods consist of a flat, C-shaped metal rail, which is secured to the outside of a hollow plastics section. In lieu of a C-shaped metal rail guides are also used used which are made up of a flat rail and a so-called cuff rail spaced from the latter. The actuating rod is guided between these two rails which are screwed to the outside of the hollow plastics section. The outer cuff rail has elongate slots through which the locking members which are secured to the actuating rod extend.

The task of securing the known actuating rod guides to the frame section of the window or on door is time-consuming.

It is an aim of the invention to eliminate the disadvantages of the known actuating rod guides.

This aim is achieved by a hollow plastics section having the features recited in Claim 1.

Various forms of section embodying the invention, and a window comprising such sections, will now be described, by way of example only, with reference to the accompanying drawings in which: Figure 1 is a fragmentary cross-section through a window whose frame comprises a said hollow plastics section; and Figures 2, 3 and 4 are fragmentary crosssections showing different constructions of the actuating rod guide for use in a frame embodying a said hollow plastics section.

Actuating rod guides 4 shown in Figs 1 to 4, which are incorporated in a hollow plastics section 1 have the advantage that a window, whose frame is made up of a said section 1 can be provided with an actuating rod guide on all of the outer sides of the window frame, i.e. on the side which is swung outwards, on the lower and upper horizontal frame portion and also on the side of the frame at which the window is hinged. Thanks to the actuating rod guide 4 which is incorporated in the hollow plastics section the otherwise necessary expenditure on assembly and materials is eliminated. The metal actuating rod is guided securely and with little friction in the guide 4 of the section 1. In this guide 4 longitudinally extending slide ribs 10 or guide margins 12 are provided, which only have line contact with the actuating rod which is to be guided therein.Since the actuating rod is guided effectively, the latter can be made of a relatively thin non-rusting material. The actuating rod 5 which is of hat-shaped cross-section may, for example, be made of stainless steel.

The flat actuating rod 5', which is shown in Fig. 3 and which has U-shaped channels or recesses in its lateral margins, may for example be made of aluminium. If the hollow plastics section is provided on both sides with a guide channel 4, then the guide channel 4 on the side of the section on which the window pane 2 is inserted may also serve to receive a fitting for retaining the window pane 2.

If, as shown in Fig. 1, a guide channel 4 is provided on each of the two lateral surfaces 8 of the section 1, then it is desirable to arrange the channels relatively displaced. In this case the hollow section 1 can be used to form the frame of a window having an insulating- or double-glazing pane 2, as shown in Fig. 1, or for forming a frame which is provided with just an ordinary pane. In the latter case, as shown in Fig. 1, a fitting 12 with a sealing lip 13 in inserted into the guide channel 4 in which the actuating rod 5 is not located.

1. A hollow plastics section for manufacturing the frame of a casement window or door, wherein at least one outer side (8) of the hollow section (1) has throughout its length a flat, C-shaped guide channel (4).

2. A section according to Claim 1, wherein the guide channel (4) has, on its open side, two oppositely directed marginal shoulders (6) which are between 2 and 6 mm wide.

3. A section according to Claim 2, wherein slide ribs (10) protrude from a base surface (9) between the latter and the marginal shoulders (6) said ribs being adapted for guiding, in the frame, an actuating rod (5) of hat-shaped cross-section.

4. A section according to Claim 3, wherein the slide ribs (10) are disposed opposite the free margins of the shoulders (6).

5. A section according to Claim 4, wherein the free margins of the shoulders (6) are provided with marginal beads (7) or guide margins (12), which are disposed opposite to the slide ribs (10).

6. A section according to any one of

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

Claims

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Hollow plastics section for a casement window- or door, and a said window or door comprising a said section This invention relates to a hollow plastics section for use in a casement window or door, and also to a said window or door comprising a said section and having at least one associated actuating rod. The known casement windows or doors having frames composed of hollow sections, have (at least on the side which is swung out) an actuating rod which is guided in a guide secured to the frame. The actuating rod or a plurality of actuating rods can be moved to and fro in their longitudinal direction by means of a pivotable handle, so that locking members secured to the actuating rod can be moved into a locking- or an unlocking position. In the locking position the locking members of the window- or door abut against and behind abutments which are secured to the window-or door frame. The known guides for actuating rods consist of a flat, C-shaped metal rail, which is secured to the outside of a hollow plastics section. In lieu of a C-shaped metal rail guides are also used used which are made up of a flat rail and a so-called cuff rail spaced from the latter. The actuating rod is guided between these two rails which are screwed to the outside of the hollow plastics section. The outer cuff rail has elongate slots through which the locking members which are secured to the actuating rod extend. The task of securing the known actuating rod guides to the frame section of the window or on door is time-consuming. It is an aim of the invention to eliminate the disadvantages of the known actuating rod guides. This aim is achieved by a hollow plastics section having the features recited in Claim 1. Various forms of section embodying the invention, and a window comprising such sections, will now be described, by way of example only, with reference to the accompanying drawings in which: Figure 1 is a fragmentary cross-section through a window whose frame comprises a said hollow plastics section; and Figures 2, 3 and 4 are fragmentary crosssections showing different constructions of the actuating rod guide for use in a frame embodying a said hollow plastics section. Actuating rod guides 4 shown in Figs 1 to 4, which are incorporated in a hollow plastics section 1 have the advantage that a window, whose frame is made up of a said section 1 can be provided with an actuating rod guide on all of the outer sides of the window frame, i.e. on the side which is swung outwards, on the lower and upper horizontal frame portion and also on the side of the frame at which the window is hinged. Thanks to the actuating rod guide 4 which is incorporated in the hollow plastics section the otherwise necessary expenditure on assembly and materials is eliminated. The metal actuating rod is guided securely and with little friction in the guide 4 of the section 1. In this guide 4 longitudinally extending slide ribs 10 or guide margins 12 are provided, which only have line contact with the actuating rod which is to be guided therein.Since the actuating rod is guided effectively, the latter can be made of a relatively thin non-rusting material. The actuating rod 5 which is of hat-shaped cross-section may, for example, be made of stainless steel. The flat actuating rod 5', which is shown in Fig. 3 and which has U-shaped channels or recesses in its lateral margins, may for example be made of aluminium. If the hollow plastics section is provided on both sides with a guide channel 4, then the guide channel 4 on the side of the section on which the window pane 2 is inserted may also serve to receive a fitting for retaining the window pane 2. If, as shown in Fig. 1, a guide channel 4 is provided on each of the two lateral surfaces 8 of the section 1, then it is desirable to arrange the channels relatively displaced. In this case the hollow section 1 can be used to form the frame of a window having an insulating- or double-glazing pane 2, as shown in Fig. 1, or for forming a frame which is provided with just an ordinary pane. In the latter case, as shown in Fig. 1, a fitting 12 with a sealing lip 13 in inserted into the guide channel 4 in which the actuating rod 5 is not located. CLAIMS

6. A window or door having a frame comprising a hollow plastics section according to any one of the preceding claims, which has at least one actuating rod (5) which is hatshaped in cross-section, is made of stainless steel and is directly guided in a said guide channel (4).

6. A section according to any one of Claims 2 to 4, wherein the free margins of the shoulders (6) are provided with guide ledges (11), which are adapted to extend into Ushaped channels on the margins of a flat said actuating rod (5').

7. A section according to any one of the preceding claims, wherein the guide channel (4) is arranged inwardly of the outer side (8) of the hollow section (1).

8. A section according to any one of Claims 1 to 6, wherein the guide channel (4) is arranged outwardly of the outer side (8) of the hollow section (1), and formed by two angular extensions which extend from the said outer side (8).

9. A hollow plastics section according to Claim 1, constructed and arranged substantially as hereinbefore described with reference to, and as illustrated in, Fig. 1, or Fig. 1 as modified by Fig. 2 or Fig. 3 or Fig. 4, of the accompanying drawings.

10. A window or door having a frame comprising a hollow plastics section according to any one of the preceding claims, and an actuating rod (5, 5') which is guided in a said guide channel (4).

CLAIMS (11th Sep 1984)

1. A hollow plastics section for manufacturing the frame of a casement window or door, wherein at least one outer side (8) of the hollow section (1) has throughout its length a flat, C-shaped guide channel (4) which has, on its open side, two oppositely directed marginal shoulders (6) which are between 2 and 6 mm wide for directly guiding an actuating rod (5) of hat-shaped cross-section made of stainless steel.

2. A section according to Claim 1, wherein slide ribs (10) are formed on and protrude from a base surface (9) between the latter and the marginal shoulders (6).

3. A section according to Claim 2, wherein the slide ribs (10) are disposed opposite the free margins of the shoulders (6).

4. A section according to Claim 3, wherein the free margins of the shoulders (6) are provided with marginal beads (7) or guide margins (12), which are disposed opposite to the slide ribs (10).

5. A hollow plastics section according to Claim 1, constructed and arranged substantially as hereinbefore described with reference to, and as illustrated in, Fig. 1, or Fig. 1 as modified by Fig. 2 or Fig. 4, of the accompanying drawings.