Movable or removable closures – Mounted for multidirectional or oblique movement – Swings on plural axes; e.g. – pivotal link arms
Patent
1996-05-02
1998-07-07
Redman, Jerry
Movable or removable closures
Mounted for multidirectional or oblique movement
Swings on plural axes; e.g., pivotal link arms
49251, 49246, E05D 1528
Patent
active
057750289
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
This invention relates to window stays.
BACKGROUND ART
Conventional window stays have been developed to support a window pane and surrounding window sash from the window frame. Window stays known as friction stays allow the window to be fully supported by the stays with no other hinge connection between the window sash and window frame. The stays are rotatably mounted on both the window frame and window sash so that, upon opening the window, frictional rotation of the stays about their pivot points on the frames and sash for the window support the window in an open position. Many of these allow a gap between the window sash and frame, both below and above the window.
An alternative conventional configuration provides window stays rotatably mounted on the window frame and one stay rotatably mounted to the window sash. The second window stay is slidably mounted onto the window sash. As with the previous example, such stays generally allow the window to open outwards with the bottom edge of the window sash furthest away from the window frame but also allowing some space between the window sash at its top edge and the window frame.
U.S. Pat. No. 3,838,537 discloses a friction device slidably mountable on a window frame but having mounted therefrom interconnected arm members. Such a construction however, does not provide the prospect of a simple window stay of the type envisaged by the present invention nor one capable of being fitted in a factory or being provided as a retail pack which will nevertheless provide for a slim window stay assembly.
DISCLOSURE OF INVENTION
It is an object of this invention to provide window stays which allow alternative opening configurations to those previously known and/or at least provide the public with a useful choice.
Accordingly, in a first aspect, the invention consists in window framing apparatus comprising: attached to the window frame and the window sash and each pair of window stays directly or indirectly supporting a common side of said window sash from a corresponding side of said window frame; and interconnected, either directly or indirectly, with the other window stay in said pair such that rotation of one window stay in said pair will cause a proportional rotation of said other window stay in said pair without any substantial movement of the pivot axes and adjacent the direct or indirect interconnection of the window stays.
Preferably, said stays are each pivoted from a mounting member (eg a plate).
Preferably, said window stays are both each pivoted to either the window frame or the window sash directly or indirectly (eg via a mounting member) and are preferably directly interengaged adjacent such pivot axes.
Preferably, said direct interengagement comprises complementary interlocking gear teeth of each said window stays.
Preferably, said window stays are both each pivoted to its window frame or window sash and are interengaged by (i) spacer gears, (ii) a rack (linear or segmented), or (iii) an endless link selected from a belt, chain or cable which engage with teeth carried by or of each said window stay.
Preferably at least one stay is connected by a slide mechanism to its window frame or sash.
Preferably, said stays are pivoted at each end (directly or indirectly) to said window sash, at least one such pivot being to a slide mechanism.
Preferably, said slide mechanism is a friction slide mechanism.
Preferably there is an adjustable stop in said slide mechanism.
Preferably, one stay extends beyond its pivot to its window sash to a parallel pivotal connection with another window sash to control the disposition of that window sash.
Preferably, the extension of one stay is telescopic or slidably is pivoted to said another window sash.
Preferably, said two stays are substantially in the plane of the window frame when closed but extend to opposite sides of the plane of the window frame when opened.
Preferably, said two stays are substantially in the plane of the window frame when closed but extend to the same side of the plane of the window fr
REFERENCES:
patent: 2674452 (1954-04-01), Hummert
patent: 3650070 (1972-03-01), Ringle
patent: 3838537 (1974-10-01), Stavenau et al.
patent: 4143556 (1979-03-01), Hauber
patent: 4617758 (1986-10-01), Vetter
patent: 4943104 (1990-07-01), Zani et al.
patent: 5452543 (1995-09-01), VonWald et al.
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