GB2204355A

GB2204355A - A window stay

Info

Publication number: GB2204355A
Application number: GB08710511A
Authority: GB
Inventors: Yurek Adrian Wronski
Original assignee: COTSWOLD ARCHITECTURAL PRODUCTS Ltd; Cotswold Architectural Products Ltd
Current assignee: COTSWOLD ARCHITECTURAL PRODUCTS Ltd; Cotswold Architectural Products Ltd
Priority date: 1987-05-02
Filing date: 1987-05-02
Publication date: 1988-11-09
Also published as: GB8710511D0

Abstract

A demountable window stay, generally indicated at 10, comprises a base 11, and a stay assembly 12. The assembly 12 has a pair of mounting elements 13, 14 which carry support arms 15, 16. The base 11 has an upstanding wall 18 with a turned-over lip which defines a channel. The mounting elements 13, 14 can be slid into the channel to assemble the stay, the element 14 having an abutment 23 to hold it in a predetermined position, in which it may be fixed to the base 11, whilst the element 13 can slide along the base 11 as the stay assembly opens and closes. <IMAGE>

Description

"A Window Stay" This invention relates to window stays.

Particularly in North America it is common to manufacture window stays in such a way that the stay assembly, on which the window is carried, can be demountable from the base, which is mounted on the window frame, so that the frame and window can be transported separately but readily engaged on site.

The most common version has two mounting elements for the stay assembly; one of these is slidingly received on the base and the other is constituted by an end of an arm of the stay, which is snap fittingly received on a projecting stud formed on the base. In order that the stay can be removed, the channel in which the sliding element is received has to be partly cut away.

Considerable problems have been experienced with this construction partly because it is extremely difficult to both slide the element into the channel and produce transverse pressure to snap fit the arm over the stud when mounting a window in the frame, and partly because the reversible nature of the snap fitting makes the engagement likely to tear apart in use or be forced apart by an intruder.

From one aspect the invention consists in a stay having a base defining a channel and a demountable stay assembly having mounting elements which can be slid into the channel for assembly of the stay.

From another aspect the invention consists in a stay comprising a base having a channel and a demountable stay assembly, the assembly having a first mounting element insertable in the channel for sliding movement along the base, a second demountable element insertable in the channel, to engage the base in a pre-defined position and a respective arm pivotally attached to each element, the arms being mutually, pivotally interconnected to support a window or the like for movement to and from the base as the first element moves along the base.

In a preferred embodiment, the second element is formed with an abutment for engaging the base to define its inserted position on the base. The second element may further be formed with an aperture which aligns with an aperture in the base in the inserted position of the element so that the second element can be held to the base by a fastener passing through the apertures. The second element, and its associated arm, may be cranked so that the arm is supported in the closed position of the stay assembly for some distance from the pivotal connection.

The base may be provided with an upstanding wall and the channel may be defined by a turned over lip of the wall.

Although the invention has been defined above, it is to be understood that it includes any inventive combination of the features set out above or in the following description.

The invention may be performed in various ways, and a specific embodiment will now be described, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a plan view of a window stay, Figure 2 is a side view on the arrow A of Figure 1, and Figure 3 is a plan view illustrating the insertion of the stay assembly on the base.

A window stay, generally indicated at 10, comprises a base 11 and a stay assembly 12. The assembly 12 itself comprises a pair of mounting elements 13,14 which respectively, pivotally support arms 15 & 16 which are themselves mutually, pivotally engaged at 17. The arm 15 is apertured for connection to a window whilst the base 11 is simultaneously apertured for connection to a window frame in the known manner.

The base 11 has an upstanding wall 18 with a turned over lip 19 which defines a channel 20. This channel 20 slidingly retains mounting element 13 by means of an upward projection 21 carried on that element. Mounting element 14 is also provided with a similar projection 22 so that it too can be slid into and retained within the channel 20. However, this element is provided with an abutment 23 which limits the travel of the element into the channel 20 so that the element 14 is held in a pre-defined position in which an aperture 24, in the element 14, overlies an aperture in the base 11. A screw can then be passed through these apertures to complete the fixing of the base 11 to a window frame and simultaneously hold the mounting element 14 fixed in its pre-determined position.

It will thus be seen that the stay assembly 12 can easily be mounted on and dismounted from the base 11 simply by inserting or removing the mounting elements 13,14 from the channel 20 and inserting a screw through aperture 24. Thus, all the disadvantages, mentioned above, of the complicated stud snap attachment are removed because the elements are inserted by movement in a single direction and once the screw has been fixed to the frame through the aperture 24, the element 14 cannot accidentally be detached.

As will be seen in Figure 3, both the arm 16 and element 14 are cranked to provide good support for the arm 16 in the closed position of the stay. The slidable mounting element 13 is preferably provided with a cut away channel to enable it to slide over the base fixing screws without snagging them and its upper surface may be formed by a metal plate to provide a good attachment for the pivot. Otherwise, the elements 14,15 are preferably moulded plastics.

Claims

l. A stay having a base defining a channel and demountable stay means having mounting elements for sliding into the channel for assembly of the stay.
2. A stay comprising a base defining a channel and demountable stay means, the stay means having a first mounting element insertable in the channel for sliding movement along the base, a second mounting element insertable in the channel to engage the base in a predefined position and a respective arm pivotally attached to each element, the arms being mutually, pivotally interconnected to support a window or the like for movement to and from the base as the first element moves along the base.
3. A stay as claimed in Claim 2, wherein the second element is formed with an abutment for defining the inserted position on the base.
4. A stay as claimed in Claim 2 or Claim 3, wherein the second element defines an aperture and the base defines an aperture which aligns with the first mentioned aperture so that the element can be held to the base by a fastener passing through the apertures.
5. A stay as claimed in any one of Claims 2 to 4, where the second element, and its associated arm, is cranked so that the arm is supported, in a closed position of the stay means for some distance from their pivotal interconnections.
6. A stay as claimed in any one of Claims 2 to 5, wherein the base has an upstanding wall and wherein the channel is defined by a turned-over lip of the wall.
7. A stay substantially as hereinbefore described, with reference to the accompanying drawings.