JPH1025942A - Window stay - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a new stay for mounting a window sash to a window frame. SOLUTION: A permanent window stay is equipped with a sliding element 14. The sliding element 14 can be positioned and fixed to at least one place on a stay element 10 with a fixed mechanism 18. The fixed mechanism 18 is equipped with a latch hooking part 31 capable of interlocking with at least one interlocking section 35 of the stay element 10 and an operation section 30 capable of sliding the sliding element 14 along the stay element 10 by making it possible to separate the latch hooking part 31 from the interlocking section 35. When the sliding element 14 reaches the fixed position, a relatch hooking part 33 for interlocking the latch hooking part 31 with interlocking section 35 is also provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an improvement in a window stay.

[0002]

2. Description of the Related Art A window stay is a member of a metal fitting so that a window sash can be hingedly attached to a window frame. The term window stay, in the broadest sense, is a hinge that hinges a sash within a window frame, but need not be limited to itself holding the window sash in an adjusted open position. In a preferred embodiment of the window stay, a friction pivot joint is incorporated so that the stay can hold the window sash in the adjusted open position. Typically, the window sash is mounted within the window frame by a pair of window stays.

[0003] Sliding carriages or sliding shoes are sometimes provided to allow the window stays to perform the required hinged movement. The carriage may need to be fixed at one or more locations within a range of travel along a mounting plate with which the carriage slidably engages. Such a window stay may be, for example, of the type disclosed in applicant's UK Patent Specification 1565703, commonly referred to as a dual-acting stay.

As disclosed in patent specification 1565703, a sliding carriage can be fixed in a first position,
The stay can thereby be operated in a known four bar stay manner. However, the carriage is released so that it can slide along the mounting plate, and the window sash can be secured when it is opened at one or more locations, generally at least one location, up to or near maximum. At its maximum open position, the window sash is located in a plane that is at or near 90 degrees to the plane of the window frame.

[0005]

A typical problem with such an arrangement is that it is difficult to secure the carriage or that the user only has to operate the locking mechanism for each of the pair of stays. In addition, it is difficult to operate the fixing mechanism because a pushing operation must be added to the window stay. Another problem with sliding carriages is due to the carriage overlapping or projecting beyond the longitudinal edge of the mounting plate with which the carriage is slidably engaged. Therefore, it is necessary to leave a gap between the window frame and the mounting plate for the entire length of the mounting plate so that free sliding of the carriage is not hindered. The mounting plate must be properly positioned within the frame so that the proper clearance is obtained. However, it is desirable for the mounting purpose and proper orientation to position the window stay frame mounting plate along one longitudinal side of the frame mounting plate and close to the window frame collar at one end thereof.

[0006]

SUMMARY OF THE INVENTION In general, one aspect of the present invention is provided with a window stay of the type having sliding means, such as a shoe or a carriage. The sliding means has fixing means capable of positioning and fixing the sliding means in at least one fixed position on the stay element. The fixing means includes a latching portion engageable with at least one engaging portion of the stay element, and a latching portion is disengaged from the engaging portion to slide the sliding means along the stay element. Re-latching means is provided for re-engaging the latched portion with the engaging portion when the sliding means reaches a fixed position.

According to a second broad aspect of the present invention, there is provided a window stay of the type having a sliding means, such as a shoe or a carriage, positioned for sliding movement along a stay element. The stay element has a pair of opposing edges that are longitudinal with respect to the direction in which the sliding means can move, and is provided with at least one guiding means positioned inward of said edge, further comprising a sliding element. The means has an engaging portion which is movable longitudinally along the guide means but engages within the guide means so that it cannot move laterally off the guide means during normal operation of the window stay.

In a preferred embodiment of the present invention, guide means are provided inwardly of each of the side edges and parallel to each other. Preferably, in the window stay according to the present invention, the stay element is a frame mounting plate, and the sliding means rotatably mounts one end of an arm of the window stay, and slides when the window stay is in the fully closed position. A distal stop element is provided for engaging at least a portion of the arm when the window stay is in the fully closed position.

In the following detailed description of the present invention according to preferred embodiments thereof, reference is made to the accompanying drawings.

[0010]

DETAILED DESCRIPTION OF THE INVENTION In the following description of the invention, the window stay to which the invention is applied is of the double-acting type disclosed in the applicant's UK Patent Specification 1565703. This stay includes a frame mounting plate 10, a sash mounting plate 11, a short arm 12 and a long arm 13 which are stay elements. The carriage 14 as a sliding means is slidably engaged with the frame mounting plate 10,
Further, it is connected to the sash mounting plate 11 via the short arm 12. The short arm 12 is connected to the carriage 14 and the sash mounting plate 11 via corresponding pivot joints 16 and 16 ', respectively.

The long arm 13 is likewise rotatably mounted at each end on mounting plates 10 and 11 via pivot shafts 17 and 17 '. In a preferred form of the invention, the pivot joint 16 ', the pivots 17 and 17' are of the type described and claimed in Applicant's New Zealand Patent Specification 230905. However, other forms of contact or non-contact pivot joints will be apparent to those skilled in the art. The end stop 15 is fixedly attached to the other end of the frame mounting plate 10 opposite to the end having the rotation shaft 17.

To facilitate the attachment of the plates 10 and 11 to corresponding window frames and window sashes, the sash mounting plate 11 has openings 19 for receiving mechanical fasteners.
An opening 20 is provided in the frame mounting plate 10. A mechanical fastener can be passed through the opening 20 ′ of the distal stop 15 and through the corresponding opening 20 of the frame mounting plate 10 to the window frame. This mechanical fastener can also be employed to partially or entirely secure the distal stop 15 to the frame mounting plate 10.

However, in this preferred form,
As shown in FIG. 9, the end stop 15 may have a projection clip 43 that engages in an opening provided in the frame mounting plate 10. The leg 44 extending in the vertical direction
Engage in a groove 27 that slidably engages the carriage (see below). The attachment of these end stops 15 is essentially a snap fit with clips that prevent longitudinal movement and leg 44 that prevents lateral movement relative to the frame mounting plate 10. This fixed part of the terminal stop,
This is especially important during stay window installation.

As with the double-acting stay of British Patent Specification 1565703, the carriage 14 is fixed in a distal position furthest from the pivot 17 and a locking mechanism 18
Is provided for this purpose.

The short arm 12 is mounted in a recess 21 of the carriage 14, which is aligned with the recess 22 of the end stop 15. End stop 15
Wall 23 engages with the edge of short arm 12 when the stay is in the fully closed position to limit the range of movement of arm 12 when arm 12 reaches the fully closed position. When the carriage 14 moves to the maximum movement range farthest from the rotation shaft 17, the end stop 15 moves to the end 2 of the carriage.
Also provided is a stop surface 24 which engages the 5.

When the maximum movement range is reached, the carriage 14 is fixed by the fixing mechanism 18 so as not to slide. As shown in FIGS.
Is composed of a substantially Z-shaped lever, and the lever is
One leg 30 forming an operation button, that is, an operation button, which is an operation portion, and the other having a projection 31 as a latch portion that engages with the opening 35 of the frame mounting plate 10 at a position where the carriage 14 is fixed. Has legs. The middle section 32 of the lever forms a pivoting section as will become apparent below.

A spring portion 33 projecting downward from the button 30
Is formed integrally with the button. The distal end of the spring engages a cross member 38 located within the cavity 39 of the carriage 14 in which the locking mechanism 18 is provided. A release arm 34 is provided that extends downward from the button 30 and associated spring portion 33. In the distal position of the sliding carriage 14 shown in FIGS.
4 is positioned so as to face the opening 36 of the frame plate 10. This opening 36 differs in shape and size from the opening 35 with which the projection 31 of the fixed arm 18 engages, for reasons which will become apparent hereinafter.

To release the locking mechanism 18 and slide the sliding carriage along the frame mounting plate 10, FIG.
Downward pressure is applied to button 30 as shown in FIGS. Such movement is possible with the release arm 34 moving into the opening 36. The maximum movement range of the button 30 is determined by the fixing mechanism 1 that engages with the ceiling 40 of the cavity 39.
8 are limited by the arm 31. In such a position, the distal end of button 30 engages a clip member 37 formed as an integral part of carriage 14 (see FIG. 6). It can also be seen that when button 30 is pressed, spring portion 33 is deformed as a result of its distal end engaging cross member 38. As the carriage 14 slides away from the distal stop 15, the release arm 34 engages the edge of the opening 36, thereby applying an upward force to the button 30, causing the button (pressing the spring 33). Release (under effect) from engagement with clip 37 (see FIG. 8). The carriage can continue to slide along the frame mounting plate 10 because the size and shape of the protrusions 31 are different, such that the protrusions cannot engage the openings 36 and can simply slide over them.

However, when the carriage reaches the maximum range of sliding toward the rotating shaft 17 (see FIG. 2), the projection 3
1 moves and engages with the opening 41 (see FIG. 1). The fixing mechanism 18 has the configuration shown in FIGS. Thus, the carriage is automatically locked in the position shown in FIG. When the button 30 is pressed again to the position shown in FIG. 6 to retract the carriage 14 to the distal stop 15, the carriage can be retracted toward the distal stop 15. The interaction of the release arm 34 with the edge of the associated opening 42 moves the locking mechanism to the position shown in FIG. 7 so that when the carriage 14 engages the distal stop 15 (i.e., the surface 24 and 25 engages), the locking mechanism completes the "trigger" preparation for re-engagement of projection 31 with opening 35. The carriage returns to this position and the stay can simply continue to operate as a standard four bar stay.

Thus, the present invention provides a fixture that allows secure and automatic fixation of the carriage at the two extreme positions of the travel of the steer carriage. If necessary, another pair of openings could be provided along the length of the frame mounting plate so that the carriage could be locked in an intermediate position between the two extreme positions. This fixing mechanism is easy to operate, and when the button 30 is pressed, it engages with the clip 37 serving as a holding portion, so that the user can operate each fixing mechanism individually and then move the window sash.

A pair of parallel grooves 27 extending along the length of the frame mounting plate 10 are each provided adjacent to a vertical edge 28. The legs 26 of the carriage 14 slidably engage within the grooves 27. Groove 27 has a contour of a fold 27 ′ that engages a portion of the leg such that leg 26 cannot move laterally with respect to groove 27. That is, only vertical sliding movement of the leg along the groove 27 is allowed.

As a result of this configuration, the vertical edge of the carriage 14 is positioned inside the vertical edge 28 of the frame mounting plate. Thus, the frame mounting plate 10 can be engaged proximate to the window frame collar without obstructing the free sliding movement of the carriage 14.

FIG. 9 illustrates how the distal stop 15 can be attached to the frame plate 10 such that the distal stop 15 overlaps the end of the frame plate 10. By mounting the stay near the window frame, an appropriate mounting position can be determined. The end stop 14 also serves to withstand the negative pressure of the wind.

[Brief description of the drawings]

FIG. 1 is a perspective view of a double-acting window stay that functions as a standard four-bar stay and has a stay shown in a fully open position.

FIG. 2 is a similar perspective view, but with the carriage moved to a position where the stay is located at a position corresponding to the fully open position of the sash attached by the stay.

FIG. 3 is a partial perspective view of the window stay of FIGS. 1 and 2 (but the short arm has been removed for clarity) and the carriage fixed in a distal position where the stay can operate as a conventional four-bar stay; FIG.

FIG. 4 is a sectional view of the configuration shown in FIG. 3;

FIG. 5 is a view similar to FIGS. 3 and 4, but with the carriage released for sliding movement.

FIG. 6 is a view similar to FIGS. 3 and 4, but with the carriage released for sliding movement.

FIG. 7 is a further similar view showing the carriage having made a short sliding movement from the position of FIG. 1;

8 is a further similar view showing the carriage having made a short sliding movement from the position of FIG. 1;

FIG. 9 is a cross-sectional perspective view of a distal stop on a frame mounting plate.

[Explanation of symbols]

10 Frame mounting plate, 11 Sash mounting plate, 12
Short arm, 13 long arm, 14 carriage, 15 end stop, 18 fixing mechanism.

Claims (12)

[Claims] 1. A window stay having sliding means (14), said sliding means having fixing means (18) for positioning and fixing the sliding means in at least one fixed position on the stay element (10); The fixing means comprises a latching portion (3) which is engageable with at least one engaging portion (35) of the stay element (10).
1) and an actuating part (30) which allows the latching part to be disengaged from the engaging part (35) so that the sliding means (14) can slide along the stay element (10). A window stay provided with re-latching means (33) for re-engaging the latched portion (31) with said engaging portion (35) when the means (14) reaches the fixed position. 2. A holding means (3) for at least temporarily holding the fixing means (18) such that the latching part (31) remains disengaged from the engaging part (35).
The window stay according to claim 1, wherein 7) is provided. 3. The holding means (37) to the fixing means (18).
3. A window stay according to claim 2, further comprising release means (34) for releasing the window stay. 4. The window stay according to claim 2, further comprising a pressing means (33) for applying a pressing force to the fixing means (18). 5. The holding means comprises clip means (37) by which the actuating part is moved to latch the part (3).
5. A window stay according to claim 2, wherein the actuating part (30) is releasably held when leaving (1). 6. The release means comprises an arm (34) and a release opening (36), the release arm being in said release opening when the actuating part (30) is disengaged from the latching part (31). 4. A window as claimed in claim 3, wherein the release arm (34) is movable and is engageable with the stay element (10) when the sliding means (14) is moved to release the retaining means (37). Stay. 7. The engaging part is an opening (35) in the stay element (10) and a latching part (3).
A window stay according to any of the preceding claims, wherein 1) comprises a projection which is engageable with the opening (35). 8. The stay element includes a frame mounting plate (1).
0), and the sliding means (14) has one end of an arm (12) of the window stay rotatably mounted thereon, and further engages with the sliding means (14) when the window stay is in the fully closed position. A window stay according to any of the preceding claims, wherein a terminating stop element (15) is provided. 9. The end stop (15) comprising an arm engaging portion (23) that engages at least a portion of the arm (12) when the window stay is in a fully closed position. Window stay. 10. A stay element (10) having a pair of opposing edges which are longitudinal with respect to the direction in which the sliding means (14) can move, and at least one lying inward of said edges. One guide means (27) is provided,
In addition, the sliding means (14) can be moved longitudinally along its guiding means, but is disengaged from the guiding means during normal operation of the window stay and cannot be moved laterally.
A window stay according to any of the preceding claims, having an engagement portion (44) that engages within 7). 11. A window stay according to claim 10, wherein guide means (27) are provided which are located inwardly and parallel to each of said side edges. 12. The end stop is clipped to a stay element, and said end stop is aligned with an opening in the stay element (10).
10. The window stay according to claim 9, comprising: a mechanical fastener capable of engaging a mechanical fastener through the aligned opening.