LU87614A1 - WINDOW LOCKING DEVICE - Google Patents

Abstract

A window lock having plural ramped 100, 110 keepers for a window sash and plural rollers 112 movably associated with a slider 40 mountable on a window frame to provide multi-point locking. The actuating mechanism provides for toggle positioning of the rotatable actuating handle 12 and associated drive link 70 to prevent movement of the lock mechanism by outside forces other than the handle. <IMAGE>

Description

"Window locking device".

The present invention relates to a window locking device and more particularly to such a locking device which ensures sequential locking at multiple points of a movable frame on a frame. In addition, the window locking device provides improved locking at each of the locking points.

The movable windows that are generally used have a movable frame which is either sliding, sash or pivoting, the latter type comprising horizontally pivoted windows and vertically pivoted windows. Many different forms of window locking devices are available to block a movable window.

The inventors described here sell window locking devices for such movable windows. In many cases, the window may be of such dimensions or made of a structural material such that it may be desirable to provide locking at multiple points. It is known to mount individual window locking devices at points or spaced locations on the window to provide such locking at multiple points. Normally, each of the window locks operates independently. However, the movable mechanisms of a pair of window locks can be connected to each other for simultaneous movement controlled by a single handle, as illustrated in the United States patent. 'America No. 4,095,829 (Van Klompenburg), this patent belonging to the applicant.

Locking at multiple points is illustrated in U.S. Patent No. 2,114,645 to Van Benschoten. There are multi-point window locking structures available on the market that can be operated by a single handle.

The prior art does not disclose a structure ensuring sequential locking of the multi-point locking structure to ensure delayed locking allowing to take into account warped or twisted windows, and moreover these structures do not have a window locking designed to counteract the flexibility of the window structure, as can be encountered with a vinyl window.

A main feature of the invention is to provide a window locking device, having improved locking functions for blocking a movable frame on a frame, and it relates more particularly to a window locking device constructed to ensure locking at multiple points so as to lock a movable frame on a frame in spaced locations, and this with delayed locking of a locking structure relative to the other to take into account warped or twisted windows, the structure also taking into account other considerations which may intervene in the locking of a window having a certain bending, as in the case of a vinyl window.

Additional features of the invention relate to the versatility of the window locking device, ensuring a simple and selective assembly of component parts to ensure the desired number of locking points; ensuring that the window locking mechanism cannot be moved by any force applied to it, other than by a control handle; sealing a window lock device housing on the frame to make the device light, water and air tight; and an arrangement of the operating mechanism which can be controlled by the handle, so that the latter can have two limit positions in one of which the handle establishes a state of locking of the window with the handle close to the frame, while, in the other limit position, the window is unlocked, and the handle has moved in an arc approaching 180 °, position in which the handle is arranged according to a limited projection towards the outside of the housing when the window is unlocked .

An object of the invention is to provide a new and improved window locking device.

Another object of the invention is to provide a new and improved window locking device in multiple points, more particularly such a window locking device for vinyl windows.

Another object of the invention is to provide a locking device for a window comprising a window frame and a movable frame, comprising a slider comprising a cam element, a ramp bar, and means for moving the slider along a path s extending in its longitudinal direction to cause the cam point to cooperate with the ramp bar to establish a locked state or an unlocked state of the window, this device being characterized in that it comprises: a locking in multiple points of the frame movable on the frame by the use of at least two of the ramp chin rests and two of the cam elements each of these ramp chin rests having an inclined ramp section and a generally flat section, the slider having a length of movement along the above course, which is greater than what is required to move a cam member along this ramp section and s on the generally planar section of a ramp bar, so that delayed locking of a cam member and an associated ramp bar can be achieved relative to the other cam member and the other railing bar, having these railing bars located at a distance away from each other which is greater than the distance between the cam members, and a planar section of a railing bar having a length greater than the above difference in distances.

Yet another object of the invention is to provide a window locking device for a window comprising a window frame and a movable frame, comprising a slide comprising a cam element, a ramp bar, and means for moving the following slide a path extending in its longitudinal direction to cause the cam element to cooperate with the ramp bar to establish a locked state or an unlocked state of the window, this device being characterized in that it comprises: a housing; a handle rotatably mounted on this housing for movement between two limit positions and can be controlled to move the aforementioned slide along the aforementioned path, the slide and the handle comprising cooperating elements to prevent gravity or another external force moves the slide along the above path without moving the handle.

A further object of the invention is to provide a window locking device for a window comprising a window frame and a movable frame, comprising a slide comprising a cam element, a ramp bar, and means for moving the slide along a path extending in its longitudinal direction in order to cause the cam element to cooperate with the ramp bar to establish a locked state or an unlocked state of the window, this device being characterized in that each of the cam elements and ramp bars are bevelled to resist any separation movement in the direction perpendicular to the above course due to the flexibility of the frame and the movable frame, which can result from high loads.

The invention will be described more fully below with reference to the accompanying non-limiting drawings.

FIG. 1 is a partial perspective view of a window illustrated in the open position and with which the window locking structure of FIGS. 2 to 7 is associated.

Figure 2 is an elevational view of the hardware of the window locking device, without association with the movable frame and the frame, the window locking device being in the unlocked position, this view being in a way general similar to that of Figure 3 with broken parts.

Figure 3 is a view similar to that of

Figure 2, showing the window lock hardware in the locked position, this view being taken, generally, along line 3-3 of Figure 4.

Figure 4 is a sectional view, taken generally, along line 4-4 of Figure 3 and showing the structure in association with the frame and the movable frame.

Figure 5 is a view similar to Figure 4 and taken generally along line 5-5 of Figure 3.

Figure 6 is a fragmentary schematic view of part of the structure, in the position as shown in Figure 2 and illustrating a first articulation position.

FIG. 7 is a view similar to FIG. 6 and illustrating a second articulation position for the structure, in the locking position of the window, and this as illustrated in FIG. 3.

Figure 8 is a fragmentary elevational view of the housing.

Figure 9 is an elevational view of the handle.

The window locking device is shown in its association with a window in FIG. 1, the only parts visible from the living room being a housing 10 and a handle 12.

The window has a window frame generally designated by 14, in which the movable frame, generally designated by 16, of a casement window is pivotally mounted. The mounting of such a window by means of hinges is well known in practice, as well as the use of a control device for the window, generally designated by 18, this device being intended to move the movable frame. between a closed position and a fully open position or by bringing it to any desired intermediate position.

As will be readily understood, the window locking device can also be used on a window of the tilting type, in which the pivoting movement of the frame is generally carried out around a horizontal axis rather than along the axis of the window. vertical axis of the casement window. The concepts embodied in the window locking device could be used with other types of movable windows, for example in the case of a hung window.

The window locking device is of particular interest with a vinyl window, an embodiment of such a vinyl window being shown partially in Figures 4 and 5. The frame 14 has vertical wall sections 20 and 22 suitably connected together to form a single piece, by interconnection walls, a pair of interconnected walls 24 and 26 extending at right angles to the previous wall sections, the wall 26 forming the surface of the frame facing the living room.

The movable frame 16 comprises a vertical outer wall 28 with which walls are associated by forming only one piece with this wall 28, in particular a wall 30 extending perpendicular to this wall 28 and forming one of the walls cooperating with the vertical face panel 32, which can be brought into a position very close to the vertical frame wall 24 when the window is closed, a suitable bead 34 ensuring a tight seal.

The window locking device comprises a slider 40 movable along a path extending longitudinally and which comprises an element operating as a cam, in the form of a roller 42. The slider 40 is movable along this path due to its mounting on a flat part of a support 44 which comprises a pair of shoulder guide rivets 46 and 48 extending through corresponding buttonholes 50 and 52 of the slide and which allow movement of the slide from the unlocked position of the window, illustrated by Figure 2, towards the blocking position of this window, illustrated by Figure 3.

The support 44 comprises a pair of support flanges 54 and 56 arranged perpendicular to the flat part of this support and which can receive a pair of fastening devices 58 and 60 which are screwed into a pair of alignment bosses 62 and 64 s 'extending inwardly from the housing 10, and which fit into a slot formed in the walls 24 and 26 of the frame. The inner face of the housing 10 extends beyond the perimeter of the opening of the frame to abut against the inner face oriented towards the part of the vertical chassis wall 26. The fastening devices 58 and 60 can attract the edges of support 54 and 56 against the internal face of the chassis wall 24 and the perimeter of the housing 10 against the wall 26 to capture the frame between them. The perimeter part of the housing, which bears against the wall 26, comprises a continuous toric groove, parts of which are illustrated at 66 and 68 and which receives an toric element to produce a light seal, airtight and airtight. between the accommodation and the frame.

The housing 10 receives the handle 12 in rotation to allow the latter to be displaced between two limit positions. One of these limit positions is the window locking position, as illustrated in FIG. 3, where the handle 12 extends downward and, generally, parallel to the wall 26 of the frame. . The handle can move to its other limit position, as illustrated in Figure 2, which is the unlocked position of the window. This movement of the handle takes place in an arc approaching 180 °, so that this handle, as seen in Figure 2, barely extends beyond the housing 10 and, therefore, does not does not protrude inside the room when the window is open.

The slide 40 and the handle 12 comprise a means cooperating so that the rotation of the handle gives a linear movement of the slide along the longitudinal path of the latter. This cooperating means comprises a drive rod 70 keyed to the handle at the location of its axis of rotation and which comprises a pin 72 which cooperates with a fork section of the slide. This forked section has two teeth 74 and 76 having between them an open end slot. When the window locking device is in the locked position and when the handle 12 is in the position illustrated in FIG. 3, this handle can be made to turn anticlockwise. position illustrated in Figure 2 and, during this rotation, the pin 72 will move sequentially inwards and outwards from the slot and in cooperation with the tooth 76 to move the slide 40 downwards, as can be see considering Figures 2 and 3.

When the handle 12 returns to the position of Figure 3, this handle 12 is caused to rotate clockwise and the pin 72 moves sequentially inward and outward from the slot and cooperates with an edge of the tooth 74 to raise the slide, as illustrated by Figures 2 and 3. The flat part of the support 44 has a curved cutout S0 to allow the free end of the rod d drive 70 to move between the positions illustrated in Figures 2 and 3.

The ends of the teeth 74 and 76 of the forked section of the slide are bevelled to allow movement of the drive rod 70 towards an articulation position in one or other of the limit positions of the handle. This is illustrated schematically in Figures 6 and 7. When the handle 12 moves to the unlocked position of the window of Figure 2, the drive spindle 72 moves in the opposite direction to that of the needles of a shows, as shown in Figure 6, and the arc descending to an articulation position is allowed thanks to the bevelled end 82 of the tooth 76. The pin 72 has reached an articulation position in which, if a force upwards is exerted on the slide 40, as indicated by the upward arrow, the beveled end 82 of the tooth 76 cooperates with the pin 72 and tends to move this pin to the right. This movement is prevented by cooperation between the housing and the handle.

This cooperation is achieved by the structure illustrated in Figures 8 and 9. Figure 8 shows a side wall 83 of the housing 10, having an opening 84 for receiving a rod 85 (Figure 9) of the handle 12. A pair of stops 86a and 86b are provided on the housing to define the limit positions of rotation of the handle 12 by cooperation with a curved rib 87 of the handle. The rib 87 has an included arc of about 104 °, although this figure is not intended to be limiting, and the stops 86a and 86b are spaced apart by an angular distance of about 250 °, so that the handle can rotate in an arc of about 150 °.

A similar articulation position is reached when the handle 12 is in the locking position of the window. As illustrated in Figure 7, any downward force applied to the slide 40, as shown by the downward arrow, will cause a beveled end 88 of the tooth 84 to cooperate with the drive pin 72 and push the drive rod 70 clockwise, as indicated by the arrow, which will be prevented by the cooperation between the handle 12 and the housing 10. The slide 40 cannot be moved by any external force other than by moving the handle.

The cam element mentioned above, located on the slide 40 and which is constituted by the roller 42, cooperates with a ramp bar 100 which is mounted by suitable means on the vertical wall 30 of the movable frame. The ramp bar has an inclined ramp section 102 and a generally planar section 104. The ramp bar 100 is illustrated in Figure 2 with respect to the roller 42 when the movable frame is not fully closed. In the case of a clockwise rotation of the handle 12 towards the locked position illustrated in Figure 3, the slide 40 moves upwards and the roller 42 comes into contact with the sections of inclined ramp 102 and rolls along these to attract and keep the movable chassis fully closed when the roller 42 moves on the generally planar section 100 of the ramp bar. The ramp bar can be a solid element, as illustrated, or it can be shaped from a metal sheet.

To achieve multi-point locking, the movable frame has a second ramp bar 110 of the same construction as the ramp bar 100 and located at a certain distance therefrom. A second cam element, in the form of a roller 112, cooperates with the ramp bar 110. This roller 112 is mounted for rotation on a bracing bar 114 which is connected to one end of the slide 40 for a longitudinal displacement therewith. An upper end of this bracing bar is movable inside a guide 116 which is fixed to the chassis wall 20 by fastening devices 118.

The versatility of the location of the locking points is ensured by the way in which a bracing bar 114 can be associated with the slide 40.

The bracing bar 114 has a buttonhole 120 at its lower end, this buttonhole extending in the longitudinal direction of this bracing bar. A spacer bar rivet 122 is fixed to an offset upper end of the slide 40 and it has a pair of aligned ears located at a certain distance from the slide. When the bracing bar 114 is at an angle with respect to the slide, the slot 120 can be aligned with the aligned ears of the rivet of the bracing bar, and the latter can then be moved beyond the ears, and then rotated, to an alignment position, in which the aligned ears then block the bracing bar 114 relative to the slide. There is also a strut bar rivet 124 at the lower end of the slider. The bracing bar 114 can thus extend downwards from the slide 40. Two bracing bars can be used. Other variants can be provided by using additional rollers with each strut bar (and additional ramp bars), and by the use of strut bars of variable length.

The locking in multiple points is obtained with a delayed blocking of the roller 112 and of the ramp bar 110 with respect to the roller 42 and to the ramp bar 100, by the fact that the slide has a length of movement along its path which is greater than what is required to move a roller along the inclined ramp section 102 and on the generally planar section 104 of a ramp bar and in that the ramp bars are at a distance apart which is greater than the distance between the rollers. A generally planar section of a ramp bar has a length greater than the differences between the distances to ensure a stop for one roller while the other roller is on an inclined ramp section.

An additional feature which is of particular use for a vinyl window due to its flexibility is the beveling of the rollers 42 and 112 and of the generally planar sections 104 of the ramp bars, as can be seen in the Figures 4 and 5, and this to resist separation between them in a direction perpendicular to the path of the slide 40. If we refer in particular to Figure 4, any tendency of the movable chassis to move to the left, which could causing a separation between the ramp bar and the roller, is counteracted by the beveled relationship that exists between them.

The sequential locking action at multiple locking points has an additional advantage in that it limits the maximum amount of force required at any given time to achieve complete locking of the window.

Considering the above, it will be evident that a window locking device of great versatility and ensuring blocking at multiple points has thus been provided.

When the structure of the ramp bars has elongated sections, of general planar appearance, ensuring a stop there is a better versatility in that the ramp bars can be located in a desired position to arrive at the desired sequence of locking. at various blocking points. The bracing bars can be provided in different lengths and with different numbers of rollers, and the desired bracing bars can be easily associated with the slide at the top or at the base thereof, with the simple rotation connection which does not require the use of any fastening screws between the bracing bar and the slide.

Claims (16)

1. Window locking device, intended for a window comprising a window frame (14) and a movable frame (16) comprising a slide (40) cooperating with a cam element (42), a ramp bar (100) and means for moving the slider along a path extending in the longitudinal direction of the latter to cause the cam element to cooperate with the ramp bar by establishing a state of locking or unlocking of the window, characterized in that 'it comprises: a multi-point locking of the movable frame (16) relative to the frame (14) by the use of at least two ramp bolts (100, 110) and two cam elements (42, 112), each of the ramp bars having an inclined ramp section (102) and a generally planar section (100), the aforesaid slide having a length of movement along the aforementioned path, which is greater than what is necessary to move acam element along this ramp section and on the planar section of a ramp stud, so that delayed locking of one cam member and associated ramp stud can be achieved relative to the other cam element and to the other ramp bar, having these ramp bars located at a distance greater than the distance between the cam elements, a planar section of a rail bar having a length greater than the above difference in distances. 2. Window locking device according to claim 1, characterized in that the cam elements and the ramp bars are bevelled to resist separation in a direction perpendicular to the path of the slide. 3. Window locking device according to claim 1, characterized in that the cam elements are rollers. 4. Window locking device according to claim 1, characterized in that it comprises a bracing bar, one of the cam elements being mounted on this bar, means for connecting a bracing bar at one end of the slider, and a bracing bar guide to guide the latter in a place spaced from the slider. 5. Window locking device according to claim 4, characterized in that the means provided for connecting a bracing bar to one end of the slide comprise a buttonhole in the bracing bar, a bracing bar rivet fixed from in a non-rotatable way with the slide and comprising a pair of ears aligned at a distance from the travel of the slide and extending transversely to this travel, so that the bracing bar can be placed at an angle with respect to the slide in view to align the buttonhole with the aforementioned ears and to pass this buttonhole over these ears, then rotate the bracing bar for alignment with the slide blocking the latter and the bracing bar together. 6. Window locking device according to claim 5, characterized in that it comprises a pair of bracing bar rivets, located one at each end of the slider, so that a single bracing bar can be mounted at the end of the slider or that a pair of bracing bars can extend from the opposite ends of this slider. 7. Window locking device according to claim 1, characterized in that the cam elements are rollers and the rollers and the ramp bars have cooperating beveled surfaces. 8. Window locking device according to claim 1, characterized in that it comprises a housing, a handle rotatably mounted on this housing for movement between two limit positions and can be controlled to move the aforementioned slide the along the aforementioned path, this slider and this handle comprising means cooperating to prevent gravity or another external force from moving the slider along the aforementioned path without displacement of the handle. 9. Window locking device according to claim 8, characterized in that the cooperating means comprise a forked section of the slide, comprising two teeth spaced apart by a slot, a pivoting drive rod which can be controlled by the handle and comprising a pin movable along an arc and along the above-mentioned slot, the aforementioned teeth each having a free beveled end to allow movement of the spindle along its arc without movement of the slide to place the drive rod in an articulation position, in which an external force acting on the slide is counteracted by the engagement between a free beveled end of a tooth and the aforementioned pin, while the handle is in a limit position. 10. Window locking device according to claim 9, characterized in that "the handle has a limit position extending generally parallel to the path of the slide when the window is locked, and the handle moves in an arc towards the other limit position for unlocking the window, this arc approaching 180 ° to limit the projection of the handle in a room when the window is open. 11. Window locking device according to claim 1, characterized in that it comprises a housing which can be mounted on the frame and comprising alignment bosses which can be placed in an opening provided in the frame, a support which can be arranged. in the frame, means connecting the support and the housing bosses together, a part of the window frame lying between them, cooperating means provided on the support and the slide to mount the latter for movement along of the aforementioned route, and a toroidal-shaped groove provided in the housing and shaped to surround the aforementioned opening existing in the frame, this groove receiving an O-ring to seal between the housing and the frame. 12. Window locking device for a window comprising a window frame and a movable window frame, comprising a slider comprising a cam element, a ramp bar and means for moving the slider along a path extending in its longitudinal direction in order to bring the cam element to cooperate with the ramp bar to establish a locked or unlocked state of the window, characterized in that it comprises: a housing, a handle rotatably mounted on this housing in order to a movement between two limit positions which can be controlled to move the above-mentioned slide along the aforementioned path, the slide and the handle comprising cooperating means to prevent gravity or another external force from moving the aforementioned slide along the aforementioned route without moving the handle. 13. A window locking device according to claim 12, in which the cooperating means comprise a forked section of the slide comprising a pair of teeth spaced apart by a slot, a pivoting drive rod which can be actuated by the handle and comprising a movable spindle. along an arc and along the aforesaid slot, the teeth each having a free beveled end to allow movement of the spindle along its arc without displacement of the slide to bring the drive rod into an articulation position, where a force outer on the slide is counteracted by contact between a beveled free end and the aforementioned spindle, the handle being in a limit position. H. Window locking device according to claim 12, characterized in that the handle has a limit position extending parallel to the path of the slide when the window is locked and the handle moves in an arc towards the other limit position for unlock the window, this arc approaching 180 ° to prevent the handle from projecting into a room when the window is open. 15. Window locking device for a window comprising a window frame and a movable frame, comprising a slider comprising a cam element, a ramp bar and means for moving the slider along a path extending in its longitudinal direction in order to '' cause the cam element to cooperate with the ramp bar to establish a locked or unlocked state of the window, characterized in that each cam element and each ramp bar are bevelled to resist any separation movement in a direction perpendicular to the above course as a result of the flexibility of the frame and the movable frame which may result from high loads. 16. Window locking device according to claim 15, characterized in that the cam element is a roller. 17. Window locking device according to claim 16, comprising a series of ramp bars, a bracing bar connected to the slide to move with it along the aforementioned passage and a roller provided on the bracing bar to cooperate with a ramp bar, the aforementioned ramp bars each comprising an inclined ramp section for bringing in the movable frame and a generally planar section which can extend parallel to the above course, so that one of the rollers can move along a generally planar section of one of the above-mentioned ramp bars, while another roller moves along an inclined ramp section of another of these ramp bars, each inclined ramp section and each generally planar section of a ramp bar having the aforementioned bevel, the slide and the bracing bar having a movement along the path s usdit, appreciably greater than what is necessary to cause a roller to move along an inclined ramp section and over a generally planar section of a ramp bar.