NZ764010A - A window operator assembly - Google Patents

Abstract

A window operator to extend between a window frame and a window panel pivotally supported by the frame for movement around a window panel pivot axis between an open position and a closed position with respect to a window opening provided by the frame. The operator includes a base to be fixed to a frame; and a stay member, to be attached to the panel at a first end so as to move therewith. The stay member is captively located with respect to the base, but movable relative thereto. A catch movable relative to the base and first length between a first position at which the stay member is restrained from movement relative to the base, and a second position at which the catch permits relative movement between the stay member and the base. frame; and a stay member, to be attached to the panel at a first end so as to move therewith. The stay member is captively located with respect to the base, but movable relative thereto. A catch movable relative to the base and first length between a first position at which the stay member is restrained from movement relative to the base, and a second position at which the catch permits relative movement between the stay member and the base.

Description

A WINDOW OPERATOR ASSEMBLY FIELD The present invention relates to window operators, such as window operators that selectively retain a window in an open position.

BACKGROUND It is desirable, and in some instances it is a regulatory requirement, for windows to be limited in respect of their opening. Particularly in respect of multi-storey buildings, windows should be limited in the opening direction in order to inhibit a person passing through the window opening.

In the case of pivotally mounted windows, it is common to provide window winders that move the pivoted window panel between an open and closed position with respect to the window frame. The window winders prevent the pivoted window panel opening beyond a predetermined limit.

A disadvantage of window winders is that they are relatively expensive.

It is also known to use an arm pivotally attached to the window panel and that is provided with a series of apertures, with a selected one of the apertures engaging a pin fixed to the window frame to retain the pivoted window panel in a desired position. The disadvantage of these window stays is that they do not prevent the window panel in an opening direction.

OBJECT It is the object of the present invention to overcome or substantially ameliorate at least one of the above disadvantages. 22438872_1:hxa SUMMARY OF INVENTION There is disclosed herein a window operator to extend between a window frame and a window panel pivotally supported by the frame for movement between an open position and a closed position with respect to a window opening provided by the frame, the operator including: a base to be fixed to a frame; and a stay member, to be attached to the panel so as to move therewith, with the stay member being captively located with respect to the base, but movable relative thereto.

There is further disclosed herein a window operator to extend between a window frame and a window panel pivotally supported by the frame for movement between an open position and a closed position with respect to a window opening provided by the frame, the operator including: an elongated base to be fixed to the frame; a stay member including a rigid first length and a second length, with the second length to be attached to the pivoted window panel so as to move therewith; and a catch movable relative to the base and first length so as to be movable relative thereto between a first position at which the stay member is restrained from movement relative to the base, and a second position at which the catch permits relative movement between the stay member and the base.

There is also disclosed herein a window operator to extend between a window frame and a window panel pivotally supported by the frame for movement between an open position and a closed position relative to a window opening provided by the frame, the window operator including: a base providing a passage; and a stay member including a rigid first length and a second length, with the second length, to be attached to the window panel so as to move therewith, and wherein the stay member extends through the passage and is movable transverse of the passage to provide for movement of the window panel.

Preferably the base surrounds the passage.

There is still further disclosed herein a window operator to extend between a window frame and a window panel pivotally supported by the frame, for movement between and open 22438872_1:hxa position and a closed position with respect to a window opening provided by the frame, the window operator including: a base to be fixed to the window frame; a stay member including a rigid first length and a second length, with the second length to be attached to the panel; and a catch member movable relative to the base and the first length, to retain the stay member at a desired position, selected from at least two positions, relative to the base to thereby retain the pivoted window panel in a desired open position.

Preferably, the stay member engages the base to limit movement of the stay member to thereby limit movement of the pivoted window panel in an open direction.

There is even further disclosed herein a window operator to extend between a window frame and a window panel supported by the frame for movement between an open position and a closed position relative to a window opening provided by the frame, the window operator including: a longitudinally elongated base; a stay member including a longitudinally elongated rigid first length, and a second length, with the second length to be attached to the window panel so as to move therewith, the first length extending generally longitudinally parallel to the base in a first position when the window is in the closed position, and a position at which the first length extends generally perpendicular to the base when the window is in the open position; and a catch member mounted on the first length and engageable with the base to retain the first length in the first position of the first length, and to engage the base when the first length is in the second position of the first length.

BRIEF DESCRIPTION OF DRAWINGS Preferred forms of the present invention will now be described by way of example with reference to the accompanying drawings wherein: Figure 1 is a schematic plan view of a window operator; Figure 2 is a further schematic plan view of the window operator of Figure 1; 22438872_1:hxa Figures 3 to 7 are schematic illustrations of the operation of the window operator of Figures 1 and 2; Figure 8 is a schematic isometric view of a further window operator; Figure 9 is a schematic isometric view of an operative position of the window operator of Figure 8; Figures 10 to 16 are schematic views illustrating the operation of the window operator of the Figures 8 and 9; Figure 17 is a schematic isometric view of a modification of the window operator of Figure 1; Figure 18 is a schematic isometric view of the window operator of Figure 17; Figure 19 is a schematic isometric view of portion of the window operator of Figure 17 in a first operative position; Figure 20 is a schematic isometric view of portion of the window operator of Figure 17 in a further operative position; Figure 21 is a schematic sectioned side elevation of the window operator of Figure 17; Figure 22 is a further schematic sectioned side elevation of the window operator of Figure 17; Figure 23 is a further schematic sectioned view of the window operator of Figure 17; Figure 24 is a schematic bottom plan view of the window operator of Figure 17; Figure 25 is a schematic sectioned side elevation of a further window operator in a locked position; 22438872_1:hxa Figure 26 is a schematic sectioned side elevation of the window operation of Figure 25 in a released position; Figure 27 is a schematic plan view of an end portion of the window operator of Figure Figure 28 is a sectioned end elevation of the portion as shown Figure 27 sectioned along the line 28-28; Figure 29 is an isometric view of the window operator of Figure 17 attached to a window; Figure 30 is an isometric view of the window operator and window of Figure 29, with the window panel open Figure 31 is a schematic isometric view of a further modification of the window operator of Figure 17 incorporating a catch locking mechanism; Figure 32 is a top plan view of Figure 31; Figure 33 is a bottom plan view of Figure 31 wherein a catch member is in a release position, and a blocking projection in a withdrawn position; Figure 34 is a sectional front view of Figure 33 along section line D-D; Figure 35 is a detail view of the section side view shown in Figure 34 displaying detail E; Figure 36 is a detail view of the section side view shown in Figure 34 displaying detail F; Figure 37 is a bottom plan view of Figure 31 wherein a catch member is in a release position, and a blocking projection in a withdrawn position; Figure 38 is a sectional front view of Figure 37 along section line A-A; 22438872_1:hxa Figure 39 is a detail view of the section side view shown in Figure 38 displaying detail B; Figure 40 is a detail view of the section side view shown in Figure 38 displaying detail C.

DESCRIPTION OF EMBODIMENTS In Figures 1 to 7 of the accompanying drawings there is schematically depicted a window operator 10. The operator 10 includes a base 11 that is to be fixed to the bottom frame member 12 of a window frame. The frame would provide a window opening, that is to be closed by means of a pivotally mounted window panel 13. The panel 13 is pivotally attached to the window frame so as to be angularly movable about a generally horizontal window panel pivot axis adjacent the upper portion of the window frame.

The operator 10 also includes a stay member 14. The stay member 14 is longitudinally elongated and has pivotally attached to a first end extremity, a plate 15 that is fixed to the panel 13 by threaded fasteners. The plate 15 is movable angularly relative to the stay member 14 about a generally horizontal axis 16 that is generally perpendicular to the longitudinal direction of extension of the stay member 14.

The stay member 14 includes a first rigid stay length 17, and a second rigid stay length 18 that is considerably shorter than the stay length 17. The stay length 18 is pivotally attached to the plate 15, while the stay lengths 17 and 18 are pivotally attached by means of a pin 19 so as to be angularly movable relative to each other about an axis 20 that is generally perpendicular to the longitudinal direction of extension of the stay member 14, and generally perpendicular to the axis 16.

The base 11 has a through passage 21, surrounded by the body 22 of the base 11. The stay member 14 is movable through the passage 22, but is captively located relative to the base 12 as the plate 15 cannot pass through the passage 21, while the stay member 14 on length 17 has at a second end extremity an enlarged portion providing a stop 23. The stop 23 cannot pass through the passage 21. Accordingly, the stay member 14 is captively located with respect to the base 11 due to the plate 15 and stop 23, and the body 22 surrounding the passage 21. The passage 21 may also be in the form of a slot, provided it still retains the member 14. 22438872_1:hxa As best seen in Figure 9 the body 22 is of a “U” transverse cross section so as to provide a horizontally open slot 76 within which the length 17 is located (as shown in Figure 8) when the window panel 13 is in the closed position. By being located in the slot 76, the length 17 cannot move upward or downward, but can only move angularly in the direction 28 upwardly of the slot In respect of the passage 21, to accommodate movement of the length 17 as the window is moved to the open position, that is being slightly raised, the passage 21 provides for upward relative movement between the body 22 and the length 17. However, the body 22 slidably engages the longitudinally extending side surfaces 68 of the length 17 and length 18.

Accordingly, the length 17 is allowed to move angularly about a generally horizontal axis, generally transverse of the longitudinal direction of extension of the length 17, so as to provide for the movement of the panel 13 between the open and closed positions.

The length 17 is movable between a position at which it extends through this passage 21, and a position at which it generally overlays the body 22.

The stop 23 includes a resilient catch portion 24 that is resiliently deformable to engage a resilient tab 26 that provides a lip 25. The stop 23 has a lip 27 that is engaged by the lip 25 to retain the length 17 at a position at which it is secured to the body 22 and overlays the body 22.

To release the length 27, a user depresses the portion 24, that in turn depresses the tab 26 to remove the lip 25 from engagement with the lip 27. The length 17 is then free to move angularly to the position as shown in Figure 1. The portion 24 and tab 26 moves angularly when engaged.

As best seen with reference to Figure 5, when the window panel 13 is to be closed a user grips the stop 23 and pulls on the stop 23 to pull the plate 15 towards the body 22. This will cause the length 18 to be located in the passage 21, so that upon the user pivoting the length 17 in the direction 28 the length 17 acts as a lever and pivots about the axis 20, resulting in the length 17 engaging the portion 29 of the body 22. By the application of force to the length 17, in the direction 28, the plate 15 is moved towards the body 22 until it abuts the body 22 and pulls the panel 13 into secure engagement with the frame member 12, and therefore the remainder of the window frame. The window panel 13 is retained in the closed position by engagement of the lip 27 with the lip 25. The user can release the length 17 by depressing the tab 26. 22438872_1:hxa As mentioned previously, the stop 23 cannot pass through the passage 21. Accordingly, the stop 23 sets the limit at which the panel 13 can be opened. However, the panel 13 can be retained in one, two or more intermediate positions. This is achieved by the length 17 having recesses 30 located at spaced locations along the length 17. The recesses 30 are engaged by a catch member 31 slidably mounted on the body 22 so as to be movable in a direction 32, with the catch member 31 having a projection 33 locatable in a selected one of the recesses 30 so that the length 17 is retained in a desired position, and therefore the panel 13 at a desired open location.

By sliding movement of the member 31 the projection 33 may be removed from engagement within a selected one of the recesses 30 to release the length 17 for movement. The length 18 also has a recess 30 to be engaged by the projection 33.

The catch member 31 is urged by means of a spring 34 into engagement with the length 17, and therefor the projection 33 is urged into a selected one of the recesses 30.

The catch member 31 has a projection 35 that is engaged by a user to move the catch member 31 from engagement with the length 17.

Preferably, the operator 10 is provided with a lock cylinder 36. By operation of the cylinder 36 the catch member 31 can be retained in engagement with the selected one of the recesses 30. The cylinder 36 would have a projection (cam member) that engages the catch member 31 to retain it in engagement with the length 17. Upon angular movement of the cylinder 36 about the axis 58, the abovementioned cam member can be moved from engagement with the catch member 31, thereby enabling a user to grip the projection 35 and move the catch member 31 from engagement with the length 17. The axis 58 is transverse of the body 22.

As can be understood from the above, the stay member 14 is captively located with respect to the body 22, with the length 17 and 18 movable through the passage 21. The catch portion 24 is movable relative to the stay member 14, and the base 11, in a direction generally transverse of the length 17, to release the stay member 14 for movement from the inoperative position, to an operative position allowing opening of the panel 13. The catch member 31 is movable in a direction generally transverse relative to the stay member 14 to retain the stay member 14 at a desired position. Also as mentioned previously, the stop member 23 prevents the panel 13 moving beyond a desired maximum open position. 22438872_1:hxa In Figures 8 to 16, there is schematically depicted a modification of the operator 10 of Figures 1 to 7.

In this embodiment, the stay 10 has a catch assembly 37 located in the length 17. The catch assembly 37 includes a catch member 38 having an end portion 39. The catch member 38 is slidably movable in the direction 40, longitudinally of the length 17, however by the spring 41, the catch member 38 is urged in the direction 42. The spring 41 is located between the catch member 38 and the length 17 so as to be compressed thereby, and urge the catch member 38 in the direction 42.

A user, by pressing on the end portion 39, moves the catch member 38 in a direction opposite the direction 42. This movement disengages the catch member 38 from the barb 43.

This disengagement enables pivoting of the length 17 from the position shown in Figure 11, at which the length 17 essentially overlays the body 22, to a position as shown in Figure 14.

In this embodiment the length 18 is replaced by a rigid length 44. The length 44 is attached to the plate 15 as described with reference to the previous embodiment. However, the length 44 is provided with a recess 45 that is selectively engaged by a catch member 46. The catch member 46 is operated by the cylinder 36, with angular movement of the cylinder 36 causing movement of the catch member 46 in the direction 32 by engagement of the cylinder cam member 47 in a slot 48 in the catch member 46. As the cam member 46 moves angularly about the longitudinal axis 58 of the cylinder 36, the catch member 46 is moved in the direction The catch member 46 has a projection 50 that is selectively locatable in the recess 45, to retain the length 44 retained within the body 22, that is the plate 15 abutting the body 22 and the panel 13 in the closed position.

This embodiment includes a second catch assembly 51 that is operable to retain the panel 13 in one or more intermediate positions, that is a position between a closed position and a maximum open position of the panel 13.

The catch assembly 51 includes a catch member 52 urged in the direction 53 by a spring 54. The catch member 52 has a leading projection 55. 22438872_1:hxa The catch member 38 includes a recess 56 that is aligned with an aperture 57 in the length 17. This alignment occurs when the end portion 39 is not engaged by a user. When a user engages the end portion 39 and moves it in a direction, opposite the direction 42, the recess 56 is moved so as not to be aligned with the aperture 37.

When the length 17 is located in the passage 12, the length 17 can be moved until the aperture 57 is aligned with the projection 55. At that time the projection 55, under the influence of the spring 54, is moved into the recess 57 to retain the length 17 in the position depicted in Figure 14. Accordingly, the window panel 13 is retained in a desired open position. However, upon a user engaging the end portion 39 and moving the end portion 39 in a direction opposite the direction 42, the catch member 38 engages the leading projection 55, and moves the leading projection 55 from within the recess 56, thereby enabling movement of the length 17.

Engagement of the leading projection 55 in the recess 56 is illustrated in Figure 14. The release of the length 17 is illustrated in Figure 16.

In this embodiment the window panel 13 is retained locked in the closed position by operation of the cylinder 36. The length 17 can be retained in a desired position (defined by the location of the recess 56) by the projection 55.

Also in respect of this embodiment, the catch member 38 is used to release the length 17 from the rest position (retaining the window panel 13 in the closed position) as shown in Figure 11. However operation of the catch member 38 not only releases the length 17 for pivoting movement, but also operates engagement and disengagement of the leading projection 55 to retain the length 17 in an intermediate position, that is the panel 13 opened to a desired position.

Also in this embodiment, the panel 13 is limited in its movement in the open direction by engagement of the stop 23 with the body 22.

In the embodiment of Figures 17 to 28, the window operator 10 can secure the panel 13 in a number of positions, with this particular embodiment being adapted to secure the panel 13 in either an open position or a closed position with respect to the window frame.

In this embodiment there is provided a catch assembly 60. The catch assembly 60 is located adjacent the end extremity of the length 17 and the body 22. The catch assembly 60 is 22438872_1:hxa operatively associated with the length 17 and body 22 to retain the length 17 in the retracted position shown in Figure 17, that is the length 17 overlaying the body 22, and in particular located within the body 22. Upon operation of the catch assembly 60, the length 17 can be moved angularly so as to project generally perpendicular to the body 22 as shown in Figures 19 and 20.

The catch 60 includes a catch member 61 that is movable angularly about an axis 62 that is generally perpendicular relative to the longitudinal direction of extension of the length 17 and the longitudinal direction of extension of the body 22. The catch member 61 is mounted by means of a pivot 63 secured to the length 17.

The catch member 61 has an end projection 64 that is locatable in a recess 65 to retain the length 17 in a position as shown in Figure 17, that is secured to the body 22.

The catch member 61 projects into the stop member 23, with a button 66 being slidably mounted in the stop member 23 so as to be movable in the direction 67 between an inoperative position as shown in Figure 21, and an operative position as shown in Figure 22. The button 66 moves the catch member 61 angularly between a position shown in Figure 21 at which the catch member 61 retains the length 17 fixed to the body 22, and a release position as shown in Figure 22 with the projection 64 removed from the recess 65, permitting movement of the length 17 angularly as shown in Figure 23. The button 66 slidably engages an end portion of the member The direction 67 is generally perpendicular to the axis 62, and generally perpendicular to the longitudinal direction of extension of the length 17 and body 22.

In this embodiment, the length 17 is secured in a first position as shown in Figures 19 and , or a second position as shown in Figure 18, by the cylinder 36. As in the previous embodiments, the cylinder 36 moves the member 31 between a release position allowing movement of the length 17 and length 18, and a lock position, at which the member 31 is engaged in a selected one of the recesses 30.

As can be seen in Figure 28 a spring urges the button 66 to move the catch member 61 into engagement in a respective one of the recesses 65/75. 22438872_1:hxa As shown in Figures 24 and 25 the window panel 13 can be latched in an open position by catch member 61 selectively engaging a recess 75 in the body 22 adjacent the passage 21.

In respect of the above described preferred embodiments, as the length 17 is retained in the slot 76, and is prevented from moving upwardly by the flange 77, the catch portion 24 and resilient tab 26, the catch assembly 37, and catch member 61 cannot be disengaged to release the length 17 by upward movement of the length 17.

With reference to the embodiment as described with reference to Figures 25 to 28, when the length 17 is in a position holding the window panel in 13 in the open position, the catch member 61 is engaged in the recess 75. As best seen in Figure 27, when the length 17 is retaining the window panel 13 in the open position, the length 17 is permitted very limited upward movement relative to the passage 31 due to the inclination of the length 17.

Accordingly, the catch member 61 cannot be moved from engagement in the recess 75 by upward movement of the length 17.

Figures 31 to 40, display a further variation of the embodiment of the window operator shown in Figures 17 - 28. Like features are referenced by like numbers in the figures. The window operator 10 shown in Figs 31 to 40 incorporates a catch locking mechanism 80 comprising a lockbar 81 which extends in the longitudinal direction of body 22 from the cylinder 36 to the catch assembly 60 and is operatively connected to cylinder 36 via catch member 31.

The lockbar 81 is configured for slidable movement in its longitudinal direction motivated by the catch member 31 which in turn is moved by the operation of cylinder 36. The lockbar 81 includes a blocking projection 82 movable with the lockbar between withdraw position and a blocking position. In the withdrawn position as shown in Figs. 33 to 36, the blocking projection 82 is moved out of the path of catch member 61 allowing it to freely rotate upon pressing of button 66. However, in the blocking position, as shown in Figures 37 to 40, the blocking projection 82 is moved into the path of the catch member 61 preventing it rotating about pivot 63 into the release position so that the projection 64 of the catch member 61 is held in engagement in the respective one of the recesses 65/75. It will be appreciated that so engaged, the button 66 cannot be depressed due to it being engaged to the end portion of the member 61.

As in the previous embodiments, when the cylinder 36 moves the catch member 31 to the release position, the lockbar 81 is slid in the direction of arrow 84 so that the blocking projection 22438872_1:hxa 82 is held in the withdrawn position. The button 66 may be depressed allowing movement of the length 17 and length 18. When the cylinder 36 moves the member 31 to the lock position, the lockbar 81 is slid in the direction of arrow 85 to move the blocking projection 82 in the blocking position.

In use therefore the release button 66 may be selectively locked by means of cylinder 36 to prevent it being pressed so that the stop 23 is retained by the catch member 61 thereby preventing release of the length 17. 22438872_1:hxa

Claims (21)

1. A window operator to extend between a window frame and a window panel pivotally supported by the frame for movement around a window panel pivot axis between an open position and a closed position with respect to a window opening provided by the frame, the operator including: a base to be fixed to a frame; and a stay member, to be attached to the panel at a first end so as to move therewith, with the stay member being captively located with respect to the base, but movable relative thereto.

2. The window operator of claim 1 wherein the stay member includes a rigid first length and a second length, with the second length to be attached to the pivoted window panel so as to move therewith.

3. The window operator of claim 2 the second length is pivotally attached to the window panel about an axis generally parallel to the window panel pivot axis.

4. The window operator of claim 2 or 3wherein the second length is pivotally attached to the rigid first length about an axis which an axis that is generally perpendicular to the window panel pivot axis.

5. The window operator of any one of claims 2 to 4 wherein the second rigid stay length is considerably shorter than the stay length.

6. The window operator of any one of claims 1 to 5 wherein the base provides a passage and wherein the stay member extends through the passage and is movable transverse of the passage to provide for movement of the window panel.

7. The window operator of claim 6 wherein the base surrounds the passage.

8. The window operator of any one of claims 2 to 7 including a catch movable relative to the base and first length so as to be movable relative thereto between a first position at which the stay member is restrained from movement relative to the base, and a second position at which the catch permits relative movement between the stay member and the base. 22438872_1:hxa

9. The window operator of claim 8 wherein the stay member includes a stop at a second end thereof, said stop limiting movement of the stay through the passage.

10. The window operator of claim 9 wherein the catch is adapted to selectively retain the stay member at a desired position, selected from at least two positions, relative to the base to thereby retain the pivoted window panel in a desired open position.

11. The window operator of claim 10 wherein the first length extends generally longitudinally parallel to the base in a first position when the window is in the closed position, and a position at which the first length extends generally perpendicular to the base when the window is in the open position.

12. The window operator of claim 11 wherein the stop includes a catch portion selectively engageable to restrain the first length in the first position when the window is in the closed position.

13. The window operator of any one of claims 8 to 12 including a lock cylinder thereby to selectively lock the pivoted window panel in a closed position.

14. The window operator of any one of claims 8 to 13 including a lock cylinder thereby to selectively lock the pivoted window panel in a desired open position.

15. The window operator of claim 13 or 14 wherein said lock cylinder is configured to lock said stay to said base.

16. A window operator to extend between a window frame and a window panel pivotally supported by the frame for movement between an open position and a closed position with respect to a window opening provided by the frame, the operator including: an elongated base to be fixed to the frame; a stay member including a rigid first length and a second length, with the second length to be attached to the pivoted window panel so as to move therewith; and a catch movable relative to the base and first length so as to be movable relative thereto between a first position at which the stay member is restrained from movement relative to the base, and a second position at which the catch permits relative movement between the stay member and the base. 22438872_1:hxa

17. A window operator to extend between a window frame and a window panel pivotally supported by the frame for movement between an open position and a closed position relative to a window opening provided by the frame, the window operator including: a base providing a passage; and a stay member including a rigid first length and a second length, with the second length, to be attached to the window panel so as to move therewith, and wherein the stay member extends through the passage and is movable transverse of the passage to provide for movement of the window panel.

18. The window operator of claim 15 wherein the base surrounds the passage.

19. A window operator to extend between a window frame and a window panel pivotally supported by the frame, for movement between and open position and a closed position with respect to a window opening provided by the frame, the window operator including: a base to be fixed to the window frame; a stay member including a rigid first length and a second length, with the second length to be attached to the panel; and a catch member movable relative to the base and the first length, to retain the stay member at a desired position, selected from at least two positions, relative to the base to thereby retain the pivoted window panel in a desired open position.

20. The window operator of claim 18 wherein, the stay member engages the base to limit movement of the stay member to thereby limit movement of the pivoted window panel in an open direction.

21. A window operator to extend between a window frame and a window panel supported by the frame for movement between an open position and a closed position relative to a window opening provided by the frame, the window operator including: a longitudinally elongated base; a stay member including a longitudinally elongated rigid first length, and a second length, with the second length to be attached to the window panel so as to move therewith, the first length extending generally longitudinally parallel to the base in a first position when the window is in the closed position, and a position at which the first length extends generally perpendicular to the base when the window is in the open position; and 22438872_1:hxa a catch member mounted on the first length and engageable with the base to retain the first length in the first position of the first length, and to engage the base when the first length is in the second position of the first length. Azuma Design Pty Limited Patent Attorneys for the Applicant/Nominated Person SPRUSON & FERGUSON 22438872_1:hxa A WINDOW OPERATOR ASSEMBLY