JP4018773B2 - Window stay - Google Patents

Abstract

A window stay for the mounting of a window sash in a window frame. The window stay includes a sliding element 14. A lock mechanism enables the sliding element 14 to be located and locked in at least one locking position on the stay element 10. The locking mechanism has a latching portion 31 which is engagable with at least one engagement part 35 of the stay element 10 and an actuating part 30 which enables the latching portion 31 to be disengaged from the engagement part 35 to enable the sliding element 14 to slide along the stay element 10. There are also a re-latching means 34 which cause the latching portion 31 to re-engage with the or a said engagement part 35 upon the sliding element 14 reaching the or a locking position.

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to an improvement of a window stay.
[0002]
[Prior art]
The window stay is a member of joinery hardware, so that the window sash can be hingedly attached to the window frame. The term window stay is a hinge that hinges the sash into the window frame in the broadest sense, but need not be limited to itself holding the window sash in an adjusted open position. In a preferred form of the window stay, a friction rotation joint is incorporated so that the window sash can be held in the adjusted open position of the stay. Typically, the window sash is mounted in the window frame by a pair of window stays.
[0003]
Sometimes a sliding carriage or sliding shoe is provided so that the window stay can perform the necessary hinge rotation. 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 is slidably engaged. Such a window stay may be of the type disclosed in the Applicant's UK patent specification 1565703, commonly referred to as a double acting stay, for example.
[0004]
As disclosed in the patent specification 1565703, the sliding carriage can be fixed in a first position so that the stay can 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 fixed when it is opened to one or more, generally at least one, to the maximum or near. At its maximum open position, the window sash is located in a plane that is 90 degrees or approximately 90 degrees with respect to the plane of the window frame.
[0005]
[Problems to be solved by the invention]
A typical problem with such an arrangement is that it is difficult to securely fix the carriage, or that the user must operate the locking mechanism for each of the pair of stays, as well as push the window stays into action. There is a difficulty in operating the locking mechanism because it must be added.
Another problem with the sliding carriage is due to the carriage overhanging or protruding beyond the longitudinal edge of the mounting plate to 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 in the frame so that a proper gap is obtained. However, positioning the frame mounting plate of the window stay along one longitudinal side of the frame mounting plate and close to the window frame collar at one end thereof is desirable for mounting purposes and proper orientation.
[0006]
[Means for Solving the Problems]
In general, one aspect of the present invention is provided with a window stay of the type provided with sliding means such as a shoe or a carriage. The sliding means has a 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 that is freely engageable with at least one engaging portion of the stay element, and detaches the latching portion from the engaging portion to slide the sliding means along the stay element. And a re-latching means for re-engaging the latching portion with the engaging portion when the sliding means reaches a fixed position.
[0007]
According to a second broad aspect of the invention, there is a window stay of the type comprising sliding means such as a shoe or a carriage that is positioned for sliding movement along the stay element. The stay element has a pair of opposing edges in a longitudinal direction with respect to the direction in which the sliding means can move, and is provided with at least one guide means located inward of the edges, and is further slid The means has an engaging portion that engages within the guide means so that it can move longitudinally along the guide means but cannot move laterally away from the guide means during normal operation of the window stay.
[0008]
In a preferred embodiment of the present invention, guide means are provided inwardly and in parallel with each of the side edge portions.
Preferably, in the window stay according to the present invention, the stay element is a frame mounting plate, and the sliding means rotatably attaches one end of the arm of the window stay, and the sliding means when the window stay is in the fully closed position. And an end engaging element that engages at least a portion of the arm when the window stay is in the fully closed position.
[0009]
In the following detailed description of the invention in accordance with a preferred form of the invention, reference will be 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 British patent specification 1565703. This stay includes a frame attachment plate 10, a sash attachment plate 11, a short arm 12 and a long arm 13 which are stay elements. The carriage 14 as the sliding means is slidably engaged with the frame mounting plate 10 and 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 attachment plate 11 via corresponding pivot joints 16 and 16 ', respectively.
[0011]
Similarly, the long arm 13 is rotatably attached to the attachment plates 10 and 11 via the rotation shafts 17 and 17 'at the respective end portions. In a preferred form of the invention, pivot joint 16 ', concentric axes 17 and 17' are of the type described and claimed in Applicant's New Zealand Patent Specification 230905. However, other forms of contact pivot joints or non-contact pivot joints can be employed, as will be apparent to those skilled in the art.
The end stop 15 is fixedly attached to the other end on the opposite side of the end of the frame mounting plate 10 having the pivot shaft 17.
[0012]
In order to facilitate the attachment of the plates 10 and 11 to the corresponding window frame and window sash, the sash mounting plate 11 has an opening 19 for receiving a mechanical fastener and the frame mounting plate 10 has an opening 20. Is provided. A mechanical fastener can be passed through the opening 20 ′ of the end stop 15 and through the corresponding opening 20 of the frame mounting plate 10 to the window frame. This mechanical fastener can also be used to fix part or all of the end stop 15 to the frame mounting plate 10.
[0013]
However, in this preferred form, the end stop 15 may have a protruding clip 43 that engages in an opening provided in the frame mounting plate 10 as shown in FIG. Further, the leg portion 44 extending in the vertical direction is engaged in a groove 27 slidably engaged with the carriage (see later). The attachment of these end stops 15 is essentially a snap fit with clips that prevent longitudinal movement and leg portions 44 that prevent lateral movement relative to the frame mounting plate 10. This fixed part of the end stop is particularly important during installation on the stay window.
[0014]
Similar to the double actuated stay of British Patent Specification 1565703, the carriage 14 is fixed at the end position furthest away from the pivot shaft 17, and a locking mechanism 18 is provided for this purpose.
[0015]
The short arm 12 is mounted in the recessed portion 21 of the carriage 14, and this recessed portion is aligned with the recessed portion 22 of the end stop 15. The wall 23 of the end stop 15 engages the edge of the short arm 12 when the stay is in the fully closed position, and limits the range of movement of the arm 12 when the arm 12 reaches the fully closed position. .
The end stop 15 also includes a stop surface 24 that engages the end 25 of the carriage when the carriage 14 moves to the maximum travel range farthest from the pivot shaft 17.
[0016]
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. 3 and 4, the fixing mechanism 18 is composed of a substantially Z-shaped lever, which is an operating part, that is, one leg 30 forming an operating button, that is, an operating button, and the carriage 14. It has the other leg part which has the protrusion part 31 as a latching part engaged with the opening part 35 of the frame attachment board 10 in a fixed position. The intermediate section 32 of the lever forms a pivot section as will become apparent below.
[0017]
A spring portion 33 protruding downward from the button 30 is formed integrally with the button. The end of the spring portion engages with a cross member 38 disposed in the cavity 39 of the carriage 14 in which the fixing mechanism 18 is provided.
A release arm 34 is provided that extends downwardly from the button 30 and associated spring portion 33. In the distal position of the sliding carriage 14 shown in FIGS. 3 and 4, the release arm 34 is positioned to face the opening 36 of the frame plate 10. The opening 36 is different in shape and size from the opening 35 with which the protrusion 31 of the fixed arm 18 engages for reasons that will become apparent below.
[0018]
Downward pressure is applied to the button 30 as shown in FIGS. 5 and 6 to release the locking mechanism 18 and slide the sliding carriage along the frame mounting plate 10. Such movement is possible by a release arm 34 that moves into the opening 36. The maximum movement range of the button 30 is limited by the arm 31 of the fixing mechanism 18 that engages the ceiling 40 of the cavity 39. In such a position, the distal end of the button 30 engages a clip member 37 formed as an integral part of the carriage 14 (see FIG. 6). It can also be seen that when the button 30 is pressed, the spring portion 33 is deformed as a result of its distal end engaging the cross member 38.
As the carriage 14 slides away from the end stop 15, the release arm 34 engages the edge of the opening 36, thereby applying an upward force to the button 30, so that the button is Release from engagement with the clip 37 (under effect) (see FIG. 8). The protrusion 31 is different in size and shape, and the protrusion cannot engage the opening 36 and can simply slide therethrough, so that the carriage can continue to slide along the frame mounting plate 10.
[0019]
However, when the carriage reaches the maximum range of sliding toward the rotating shaft 17 (see FIG. 2), the protrusion 31 moves and engages with the opening 41 (see FIG. 1). The fixing mechanism 18 has the configuration shown in FIGS. Accordingly, the carriage is automatically fixed at the position shown in FIG.
In order to retract the carriage 14 to the end stop 15, the carriage can be retracted toward the end stop 15 when the button 30 is pushed once again to the position shown in FIG. 6. Interaction of the release arm 34 with the associated edge of the opening 42 moves the locking mechanism to the position shown in FIG. 7 so that when the carriage 14 engages the end stop 15 (ie, the surface 24 and The locking mechanism completes the “trigger” preparation for re-engagement of the protrusion 31 with the opening 35. The carriage returns to this position and the stay can continue to operate simply as a standard 4-bar stay.
[0020]
Therefore, according to the present invention, there is provided a fixing device capable of surely and automatically fixing the carriage at two extreme positions of steered ridge travel. If necessary, another pair of openings could be provided along the length of the frame mounting plate so that the carriage can be fixed at 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 which is a holding portion, so that the user can individually operate each fixing mechanism and then move the window sash.
[0021]
A pair of parallel grooves 27 extending along the length of the frame mounting plate 10 are provided adjacent to the longitudinal edges 28, respectively. The leg portion 26 of the carriage 14 is slidably engaged in the groove 27. The groove 27 has an outline of a folded portion 27 ′ that engages with a part of the leg portion so that the leg portion 26 cannot move laterally with respect to the groove 27. That is, the leg is only allowed to slide in the vertical direction along the groove 27.
[0022]
As a result of this configuration, the longitudinal edge of the carriage 14 is positioned inside the longitudinal edge 28 of the frame mounting plate. Thus, the frame mounting plate 10 can be engaged in the vicinity of the flange of the window frame without obstructing the free sliding movement of the carriage 14.
[0023]
FIG. 9 illustrates how the end stop 15 can be attached to the frame plate 10 such that the end stop 15 overlaps the end of the frame plate 10. An appropriate mounting position can be determined by placing a stay near the window frame. The end stop 14 also helps withstand negative wind pressure.
[Brief description of the drawings]
FIG. 1 is a perspective view of a double acting window stay that functions as a standard 4 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 location where the stay is located at a position corresponding to the fully open position of the sash attached by the stay.
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 is fixed in a terminal position where the stay can operate as a conventional 4-bar stay. It is a figure.
4 is a cross-sectional view of the configuration shown in FIG.
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.
7 is a more similar view showing the carriage having made a short sliding movement from the position of FIG.
FIG. 8 is a more similar view showing the carriage having made a short sliding movement from the position of FIG.
FIG. 9 is a cross-sectional perspective view of the end stop on the 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)

In a window stay having sliding means (14), the sliding means comprises fixing means (18) capable of positioning and fixing the sliding means in at least one fixing position on the stay element (10), said fixing means comprising: A latching portion (31) that can be engaged with at least one engaging portion (35) of the stay element (10), and a sliding means (14) that makes the latching portion detachable from the engaging portion (35). ) Can be slid along the stay element (10), and when the sliding means (14) reaches a fixed position, the latching portion (31) is moved to the engaging portion (35). Re-latching means (33) for re-engaging with
Holding means (37) is provided for holding the fixing means (18) at least temporarily so that the latching portion (31) remains disengaged from the engaging portion (35);
The holding means comprises a clip means (37), and thereby the operating portion (30) is releasably held when the operating portion is moved to release the latching portion (31). In a window stay having sliding means (14), the sliding means comprises fixing means (18) capable of positioning and fixing the sliding means in at least one fixing position on the stay element (10), said fixing means comprising: A latching portion (31) that can be engaged with at least one engaging portion (35) of the stay element (10), and a sliding means (14) that makes the latching portion detachable from the engaging portion (35). ) Can be slid along the stay element (10), and when the sliding means (14) reaches a fixed position, the latching portion (31) is moved to the engaging portion (35). Re-latching means (33) for re-engaging with
Holding means (37) is provided for holding the fixing means (18) at least temporarily so that the latching portion (31) remains disengaged from the engaging portion (35);
Release means (34) is provided for releasing the securing means (18) from the holding means (37), the release means comprising an arm (34) and a release opening (36), wherein the release arm comprises an actuating part (30). When it is moved to disengage the latching portion (31), it can move to the release opening, and the release arm (34) stays in place when the sliding means (14) is moved and the holding means (37) is released. A window stay that can be engaged with the element (10).   2. A window stay according to claim 1, wherein a release means (34) for releasing the fixing means (18) from the holding means (37) is provided.   3. The window stay according to claim 2, wherein the holding means comprises clip means (37), whereby the operating part is releasably held when the operating part is moved to release the latching part (31). .   The release means comprises an arm (34) and a release opening (36), the release arm being movable to the release opening when the actuating part (30) is moved to disengage the latching portion (31), and the release 4. A window stay according to claim 3, wherein the arm (34) is engageable with the stay element (10) when the sliding means (14) is moved and the holding means (37) is released. The window stay according to any one of claims 1 to 5 , wherein pressing means (33) for applying a pressing force to the fixing means (18) is provided. Engaging portion is an opening (35) in the stay element (10), also latching portion (31) of the above claims 1 to 6 comprising a protrusion which is engageable with said opening (35) Window stay described in any one. The stay element is a frame mounting plate (10), and the sliding means (14) is rotatably attached to one end of the arm (12) of the window stay, and further slides when the window stay is in the fully closed position. 8. A window stay according to any one of the preceding claims, wherein a terminal stop element (15) is provided which engages the means (14).   9. A window stay according to claim 8, wherein the end stop (15) comprises an arm engaging portion (23) which engages at least a part of the arm (12) when the window stay is in the fully closed position. The stay element (10) has a pair of opposing edges in the longitudinal direction with respect to the direction in which the sliding means (14) can move, and at least one guide means (inward of the edges). 27) and the sliding means (14) can be moved longitudinally along the guiding means, but cannot be moved laterally away from the guiding means during normal operation of the window stay. 27) A window stay according to any one of the preceding claims, having an engaging portion (44) which engages within 27).   11. A window stay according to claim 10, wherein guide means (27) are provided inward of each side edge and parallel to each other.   The end stop is clipped to the stay element, and the end stop has an opening (20 ') that aligns with the opening in the stay element (10) and engages the mechanical fastener through the aligned opening. The window stay according to claim 9, which can be combined.

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