IE41783B1 - Hinge and pivot arrangement - Google Patents

Abstract

1493395 Arrangements allowing a member to pivot in a frame about two alternate axes J H BIERLICH 18 July 1975 [19 July 1974] 32165/74 Heading E2F A movable member (e.g. a sash 2) can pivot in a frame 1 about two axes at right angles by means of upper and lower hinges connecting the member to frame member 6 to allow the two forms of movement 7 showrt in Fig. 1, a bolt 48 which can disengage the upper hinge from the movable member and allow pivoting to the position 9 about a screw 32 which secures the lower hinge via a large diameter hole to the frame, and a stay 14 pivoted to the frame which is engaged by a pin 43 on the member 2 to limit the latter movement; an operating handle 4 moving a rod 37 on the movable member 2 into a first position in which rollers 40 on the rod engage plates 10, 11 on the frame to prevent opening of member 2, a second position in which rollers 40 are disengaged and the member can pivot about frame member 6, and a final position in which the upper hinge is released by the bolt 48 (which is connected to rod 37) and the pin 43 (mounted on rod 37) engages the stay 14. Any suitable linkage e.g. a flexible link joins the vertically sliding rod 37 to the horizontally sliding bolt 48-as shown the bolt 48 slides through a member 58 on the member 2 and can engage in a block 74 which carries one plate 64 of the upper hinge to link member 58 and block 74 together. Two link arms 66, 69 extend between plate 64 and a further plate 61 secured to the frame to allow a wide range of movement. The lower hinge is similar and the frame mounting plate of that hinge can tilt about securing screw 32. A further stay 15 is pivoted to the frame and has a keyhole slot engaged by a pin on the movable member. A curved plate 29 on the frame engages a curved lower end 49 of the rod 37 in the final position to aid pivoting. A locking arrangement ensures that bolt 48 can be moved only in the closed position of the movable member (Fig. 4 not shown).

Description

This invention relates to a hinge and pivot arrangement which is particularly suitable for use with windows, though it can he used with for example ventilators.

The present invention consists in a hinge and pivot arrangement between a movable member, for example a window sash, and a co-operating frame, the arrangement including two hinges arranged at opposite ends of one member of the frame whereby the movable member can he hinged about said one frame member, a bolt co-operating with means for releasably connecting one of said hinges to the movable member, at least one striker plate oh another member of the frame, opposite to the said one frame member, a stay pivoted at one end to said another frame member, pivot means arranged between the movable member and a further member of the frame which interconnects the said opposing frame members whereby the movable member can be tilted about the further frame member, and an operating mechanism mounted on the movable member and including an operating handle, an operating rod movable by the handle and carrying a locking member and a pin engagable in a channel in the free end of the stay and a linkage connecting the holt and the operating rod, wherein in a first position of the operating handle, the locking member engages the striker plate,, op plates, thereby to secure the movable member to the frame against opening, in a second position of the operating handle, the locking member is disengaged from the striker plate, or plates, and’the holt and co-operating means connect the said one of the hinges to the movable member whereby the movable member can turn about both hinges, and in a third position of the operating .handle, the locking member is disengaged from the striker plate, or plates, -241783 and the bolt and co-operating means disconnect said one of the hinges from the movable member and the pin is engaged in the channel of the stay whereby the movable member can tilt about the pivot means within the limit imposed by the stay.

The preferred embodiment as described hereinafter of the hinge and pivot arrangement, which is particularly suitable for use with windows satisfies the requirement that the mechanism is hidden when the window is closed thereby giving a neat appearance, is simple to operate and mount and requires a linkage mechanism along two edges of a window sash only.

An embodiment of the invention will now be described with reference to the accompanying drawings in which!Fig. 1 is a diagrammatic perspective illustration of a tilt and turn window to which the invention can be applied, 15 Fig. 2 is a perspective view of a frame within which a window sash can be mounted to operate in the way shown in >ig. 1.

Fig. 3 is a side view of the window sash taken from the edge adjacent the operating handle, Fig. 3& is a section of an operating rod on the line A-A of Fig. 3, Fig. 4 is a plan view of a window sash shown in relation to the frame, Figs. 5 and 6 are plan views of a part of the window 25 sash, operating mechanism and the upper hinge parts, Fig. 7 is a diagrammatic perspective view of the lower hinge parts on the sash and the frame, Fig. 8 is a diagrammatic side view of the sash tilted about the frame and -541783 Fig. 9 is a diagrammatic section through the hinge of Fig. 7 showing the sash in a tilted position.

Seferring to figure 1 there is shown a window having a frame 1 within which a Sash 2 is secured in the closed position, as indicated by solid lines 3, by the action of rotating a handle 4 so that it extends downwards in line with the stile 5 of the sash 2. With the handle 4 rotated from this position in an anticlockwise direction so that it extends at right angles to the stile 5 of the sash 2, it is possible to turn the sash 2 inwardly about the jamb 6 of the frame 1, as indicated by the dotted lines 7. «^ith the handle 4 rotated still further in the anticlockwise direction so that it extends upwards in line with the stile 5, it is possible to tilt the window sash 2 inwardly about the sill 27 of the frame, as indicated hy the dotted lines 9 to provide a ventilating position. The tilt and turn action is well known and enables windows to he tilted inwards about a sill or lower frame member for ventilation and to be turned inwards on hinges about another frame member to enable the outer face of the window to he cleaned easily.

Referring to Rig. 2, the frame 1 is shown with fittings for use with a preferred form of hinge and pivot arrangement according to the present invention. ''•'he fittings include upper and lower striker plates 10 and 11, the upper striker plate 10 incorporating a stay stop 12, mounted on the jamb 13 of the frame, A pair of stays 14, are mounted hy plates 16, 17 having hack stops 18, 19 on the jambs 13, 6. The stay 14 attached to the jamb 13 carries a channel 21 and the stay 15 mounted on the jamb 6 has a key-hole slot 22. A bolt releasing plate 23 is shown mounted by screws 24, 25 on the head 26 of the frame 1. On -441783 fche sill 27 of the frame 1, there is mounted, a support plate 28 which carries a pivot edge 29, shown more clearly in Fig. 3 The sill 27 of the frame 1 carries a lower hinge plate 31 located by a screw stud 32 about which the plate 31 can tilt.

The frame 1 is formed with a recess in which the fittings are mounted between an outer cover strip 33, which covers the junction between the edges of the sash 2 and the frame 1 and carries a weather sealing strip 34, and an inner facing strip 35· The sill 27 of the frame 1 can be provided with drainage channels and holes not shown. It will he noted that in the particular embodiment described, which illustrates a metal window frame, the inner facing strip 35 does not extend so far towards the centre of the frame opening as does the cover strip 33.

Referring to figure 3 there is shown the edge of the sash stile 5, upon which the operating handle 4 is mounted, viewed from the jaatb 13 of the frame 1 with which it co-operates.

The head 26 and the sill 27 of the frame are shown sectioned.

A carrier strip 36 is mounted on the edge of the sash stile 5 and carries an operating rod 37 iron which a pin 38 extends and engages in a forked member 39 moveable vertically upon the rotation of the handle 4. The relation between the operating rod 37 and the carrier strip 36 is shown more clearly in the cross section on the line A-A of £ig. 3 illustrated in Fig. 3&. The operating rod 37 further carries two rollers 40 whioh co-operate with respective striker plate 10 and 11 indicated hy dotted lines and mounted on the jamb 13 of the frame 1.

The operating rod 37 also carries a bracket 41 upon -541783 which there is mounted, a pin 42 which locates against the stay 14 in the closed position of the sash and a headed pin which engages the channel 21 in the stay 14. The pins 42 and 43 are better seen from Figure 4. The movement of the operating rod 37 is transmitted around the corner of the sash between the edge of the sash stile 5 visible in Fig. 3 and the upper edge of the upper rail 44 of the sash 2 by a flexible transmission system shown diagrammatically at 45, which can he of the Bowden cable or chain-link type, mounted within a casing 45a_ and attached to the rod 37 by a link 46. The other end of this flexible corner transmission system is shown in Figure 4 attached by a link 47 to a holt 48. The end of the operating rod 37 remote from the comer transmission system is formed with a recess 49 which co15 operates with the pivot edge 29 on the support plate 28.

The bolt 48 shown in Fig, 4 passes through a locking mechanism 51 which is mounted on the edge of the upper rail of the sash and includes two springy apertured members 52, 53 which are tilted towards one another hy an element comprising two relatively fixed apertured members 54, 55· The locking mechanism 51 co-operates with the plate 23 on the head 26 of the frame. The· end of the bolt 48 passes through holes in the two arms 56, 57 of a U shaped member mounted on the upper rail 44 of the sash.

The sash 2 is hung to turn about the frame 1 by means of hinge arrangements between the upper rail 44 of the sash 2 and the head 26 of the frame 1 and between the lower rail of the sash 2 and the sill 27 of the frame 1. -641783 The hinge arrangement between the upper rail 44 of the sash 2 and the head 26 of the frame 1 can be seen most clearly in Figs. 5 and 6 and includes a plate 61 attached to the head 26 of the frame 1 by means of a screw passing through a hole 62. The plate 61 has a guide slot portion 63. A second plate 64, with a guide slot portion 65, is attached by a linkage to the first plate 61. The linkage includes a first double armed lever 66 which is attached at one end to the first plate 61 at a fixed pivot point 6?. T^e other end of the lever 66 carries a pin 68 which runs in the guide slot 65 in the plate 64. The first lever 66 is attached to a second double armed lever 69 by a pivot ?1 and the second double armed lever 69 is attached at one end to the seoond plate 64 at a fixed pivot point 72. The other end of the second double armed lever 69 carries a pin 75 which runs in the guide slot 63 in the first plate 61. The second plate 64 is attached to a block 74 in which there is a slot 75 on either side of which a hole 7® extends. In the closed position of the window, shown in Figure 5, the holes in the arms 56, 57 of the U shaped member 58 and the hole 76 in the block 74 are in line and the arm 57 is within the slot 75 in such a position that the bolt 48 can pass through the holes in the arms 56 and 57 and the hole 76 to couple the member 58 to the block 74. ®he hinge between the lower rail 59 of the sash 2 and the sill 27 of the frame 1 is shown in Fig. 7 and includes a first plate 78 screwed to the lower rail 59 of the sash 2.

The plate 78 has a slot 79 and a downwardly extending pin 81. The pin 81 engages with a hole 82 in one end of a first double -741783 armed lever 83 which, is attached, by a pivot 84 to a second, double armed lever 85 from which there extends a pin 86 which co-operates with the slot 79 in the first plate 7θ· A second plate is constituted hy the lower hinge plate 31 located on the sill 27, as may he more clearly seen in Figure 9, by the screw stud 32 which extends above a base plate 92 and. which secures the base plate 92 to the sill 27. The second lever 85 is attached to the second plate 31 at a fixed pivot point 88. The first lever 83 carries a pin 89 which co-operates with a slot 91 in the second plate 31. The second plate 31 has a hole 9θ which is of larger diameter than that of the screw stud 32, thereby allowing the second plate 31 to tilt around the stud. 32 in the way indicated in Figure 9 to the position indicated by the dotted lines 93.

The actions of the upper and lower hinge arrangements are similar. It will he noted that the sash 2 has a lip 94 on all four edges which covers any gap between the sash and the frame and gives the window a neat appearance.

Fig. 8 shows the sash tilted inwards from the top with a fixed stud 95 on the sash stile adjacent the jamb 6 engaged with the keyhole slot 22 in the stay 15.

Considering the operation of the mechanism controlled by handle 4, it will be understood that, with the handle 4 in the downward pointing direction shown in dotted lines at 100 in Figure 3, the forked member 39 will be moved toa maximum extent towards the head 26 of the frame. This action will move the rod 37 via the pin 38 in the same direction, raising the end of the rod 37 near to the sill 27 to the position indicated in dotted lines at Id. At the same time the -841783 rollers 40 carried, by the rod 37 will be moved behind the striker plates 10 and 11 on the jamb 13 thereby securing the window in the closed position in the frame 1. This movement of the rod will also be transmitted via the links 46 and 47 and the flexible transmission system 45 within the casing 45a. to the bolt 48 mounted on the upper rail 44 of the sash 2.

The bolt 48 will be caused, by this action, to pass from the position shown in Fig. 5 through the hole in the arm 57 the U ehaped member 58 and the hole 76 in the block 74 attached to the plate 64 of the upper hinge arrangement to its maximum possible extent* By rotating the handle 4 through an angle of 90° in the anticlockwise direction from the position shown at 100 in figure 3 to the position at right angles to the stile 5 of the sash shown in Big. 1, the rollers 40 are caused to move towards the sill 27 and to be disengaged from the striker plates 10 and 11. The movement of the rod 37 carrying the rollers 40 due to this rotation of the handle is not, however, sufficient to cause the pivot arm constituted by the rod 37 to engage the pivot edge 29 on the support plate 28. This rotation of the handle also causes the bolt 48 i to be withdrawn to the position shown in Figure 6, thereby maintaining the U shaped member 58 on the sash secured to the block 74 which is attached to the head 26 of the frame via the upper hinge arrangement. With the rollers 40 disengaged from the striker plates 10 and 11 and the upper rail 44 of the sash engaged with the hinge arrangement attached to the head 26 of the frame, it is possible to turn the window sash 2 about the jamb 6 upon the upper and lower hinge -941783 arrangements.

As has been explained., the operation of the two hinge arrangements is similar and their operation will now be described with reference to the upper hinge. It can he seen from Figure 5 that in the closed position of the sash, the guide slots 63 and 65 are substantially at right angles to one another and the fixed pivots 67 and 72 overlie one another. In turning the sash inwards about the jamb 6, the action of the hinge arrangements is suoh that, In addition to a rotation about the jamb 6, the sash is allowed to move away from the frame and is- rotated through an angle of almost 180 degrees, Fhe locus of thepivot 72 of the upper hinge, which is fixed in relation to the sash 2, is, during this turning movement, a curve which moves from overlying the fixed pivot 67 on the head 26 of the frame to a point near the inner face 102 of.the jamb 6. The action is controlled by the movement of the pins 68 and 75 in the guide slots 65 and 63 and by the pivoting actions of the first and second levers 66 and 69 about their common pivot 71· The bolt 48 is allowed to move and the handle 4 is allowed to rotate only when the sash 2 is in the closed position in the frame, by virtue of the fact that the plate 23 attached to the head 26 of the frame engages the members 52 and 55 and forces them away from one another only when the sash and the frame are in these relative positions. The forcing of the members 52 and 55 away from one another provides a free passage for the bolt through the holes in these members and in the arms 54 and 55· The locking action can be seen quite clearly from Figure 4, where the sash is turned about the hinge arrangement (not shown) to disengage the members 52 -1041783 and 53 from the plate 23. The springy memhers 52 and 53 are thereby enabled to engage the holt 48 and lock it against longitudinal movement in either direction. If necessary raised portions or notches can be provided on the bolt 48 to ensure a better engagement between the holt 48 and the members 52 and 53. It will be understood that any attempt to move the bolt towards the jamb 6 when the members 52 and 53 are disengaged from the plate 23 will cause the member 52 to bind more firmly on the bolt 48. Any attempt to move the bolt 48 in the other direction when the members 52 and 53 are not restrained by the plate 23 will cause the member 53 to bind on the bolt 48 and to lock it in position. It will therefore be understood that, when the sash is either tilted or turned so that the plate 23 does not engage the members 52 and 53, it is impossible to rotate the handle 4 and move the operating mechanism. However with the sash closed in the window frame the handle 4 and the operating mechanism may he moved to any position.

With the handle 4 moved into the upwardly extending position shown in solid lines in Figure 3 with the sash closed in the frame, the operating rod 37 is moved downwards to act as a pivot arm so that the recess 49 is enabled to engage the pivot edge 29 of the plate 28. In this position the rollers 40 are, of course, well spaced from the striker plates 10 and 11 and the bracket 41, carried on the operating rod 37> is moved downwards so that the pin 43, shown best in Figure 4, engages the channel 21 in the stay 14 shown in Figure 2. As mentioned, this operation takes place with the -1141783 sash in the closed, position and., in this position, the stud 95 (Fig. 8) on the sash 2 engages the hole at the head of the key-hole slot 22 in the stay 15, shown in Figure 2. The movement of the rod 37 is transmitted to the holt 48 through the corner transmission system 45 housed in the casing 45a and the holt 48 is withdrawn from engagement with the block 74- bo the position shown in Figure 5. The sash is thereby freed from the upper hinge arrangement, and any attempt to turn the sash about the jamb 6 is frustrated by the rod 37 extending behind the pivot edge 29 on the plate 28. However, with the upper rail 44 of the sash freed from connection with the frame it is possible to tilt the window sash in the direction of the arrows 103 in Figure 5 and arrow 104 in Figure 3 about the sill 2? of the frame. This action causes the neck of the stud 95 bo pass down bhe key-hole slot 22 in the stay 15 and the neck of the headed stud 43 to pass down the channel 21 in the stay 14 thereby causing the stays to extend to the positions shown in Figure 8 and locate the sash in an inwardly tilted position. The pivot points for the sash to tilt about the sill 27 are provided by bhe flab upper surface of the support plate 28 and by the base plate 92 about which the second plate 31 of the lower hinge arrangement tilts, as shown in Figure 9, bo the position indicated by the dotted lines 95· ^h® tilting of the plate 31 is made possible hy the relation between the shape of the stud 32 and that of the side wall of the hole 90. The recess 49 and the pivot edge 29 are to some extent hook shaped so that the rod 37 engages upon and beneath the pivot edge 29 thereby making it difficult to lift the sash out of the frame when the operating -1241783 mechanism is in position for the tilting action.

It will be appreciated that, although the rod 37 constitutes a pivot arm engaging the pivot edge 29, the action between the rod 37 and edge 29 is in the nature of a retaining action. The actual pivot points are, as mentioned above, between the support plate 28 and the base plate 92 and the sash.

Before the bolt 48 is withdrawn from engagement with the hole 76 in the block 7¾ it is necessary for the pivot arm constituted by the rod 37 to be in a position to engage the pivot edge 29, otherwise it would be possible for the window to be mis-operated by rotating the handle 4 when the window sash was in the closed position to an intermediate position in which neither the pivot arm on the sash was engaged with the edge 29 on the frame nor the bolt 48 on the sash was engaged with a part of the upper hinge arrangement on the frame. If such a condition were allowed to exist it would be possible for the sash to come out of the frame accidentally.

Although the invention has been described with reference to a particular embodiment it will be appreciated that variations and modifications can be made within the scope of the invention as defined in the appended claims. For example, the operating mechanism for securing the window and changing its function between tilting and turning actions can be employed with other hinge arrangements than those described. Furthermore it is not necessary for the turning action to operate in the manner of a side hung window and the tilting -1341783 action to be between the bottom rail of the sash and the sill. For example, the turning action could be provided in the manner of a top hung window and the tilling action could take place about a jamb of the frame. Other types of looking mechanism than that shown at 51 in Figure 4 could be used and the handle 4 could incorporate a safety plunger which it would be necessary to operate before the horizontal position of the handle 4 could be engaged from either direction, thereby making accidental engagement of the turning position virtually impossible* The apparatus described can be applied to either wooden or metal windows with minor modifications.

In place of or in addition to the pivot arm constituted hy the rod 37 cooperating with the pivot edge 29, a pin 110 may extend from the lower edge of the stile 5, shown in Fig. 3, to cooperate with the shoulder 111 of a bracket 112 attached to the jamb 13 of the frame, shown in Fig. 2. With the sash in the closed position the pin 110 passes beneath the shoulder 111 and in the tilted position the pin 110 locates beneath the shoulder 111 to reduce the risk of the sash being accidentally lifted out of the frame.

'Fhe hinge arrangement shown enables the sash to be turned through approximately 180 when being operated in the side hung manner. The hinges are mounted on the sill and the head of the frame without any cutting of the frame and they do not extend into the jamb of the frame in any way.

Instead of using flat mounting plates in the hinges in which guide slots are made and mounting the plates on the heads and sills of frames and the rails of sashes, the -1441783 mountings for the hinges can be on a jamb of a frame and. a stile of the sash and consist of members having guide channels in their upper edges and which extend depthwise of the mounting as it is on the jamb and. the stile, instead. of guide slots passing through their thickness.

Claims (7)

1. A hinge and pivot arrangement between a movable member, for example a window sash, and a co-operating frame, the arrangement including two hinges arranged at opposite ends of one member of the· frame whereby the movable member can be hinged about said one frame member, a bolt co-operating with means for releasably connecting one of said hinges to the movable member, at least one striker plate on another member of the frame, opposite to the said one frame member, a stay pivoted at one end to said another frame member, pivot means arranged between the movable member and a further member of the frame which interconnects the said opposing frame members whereby the movable member can be tilted about the further frame member, and an operating mechanism mounted on the movable member and including an operating handle, an operating rod movable 'by the handle and carrying a locking member and a pin engagable in a channel in the free end of the stay and a linkage connecting the holt and the operating rod, wherein in a first position of the operating handle, the locking member engages the striker plate, or plates, thereby to secure the movable member to the frame against opening, in a second position of the operating handle, the locking member is disengaged from the striker plate, or plates, and the bolt and co-operating means connect the said one of the hinges to the movable member whereby the movable member can turn about hoth hinges, and in a third position of the operating handle, the locking member is disengaged from the striker plate, or plates, and the bolt and co-operating means disconnect said'one of the hinges from the movable member -1641783 and the pin is enraged in the channel of the stay whereby the movable member can tilt about the pivot means within the limit imposed hy the stay.

2. A hinge and pivot arrangement as claimed, in claim 1, 5 wherein the said one hinge comprises a first plate and a second plate mounted and fixed respectively upon a member of the frame opposite to the further frame member and interconnecting said one and another opposed frame memhers and to a member of the co-operating means, first and second double 10 armed levers pivotally interconnected, the first lever being pivoted about a fixed point on the first plate, the second lever being pivoted about a fixed point on the second plate, and the first and second levers having pins or projecting portions which co-operate with guide portions of the second 15 and first plates respectively, whereby when the hinge is closed the fixed points on the first and second plates overlie one another and the guide portions are not parallel to one another.

3. A hinge and pivot arrangement as claimed in claim 1 20 or 2, wherein a locking mechanism is provided for preventing operation of the operating handle when the movable member is open by locking the bolt against movement relative to the movable member, the locking mechanism being mounted on the movable member and co-operating with a releasing member on 25 the frame to release the holt and thus the operating handle only when the movable member is olosed.

4. A hinge and pivot arrangement as claimed in any of claims 1 to 3, wherein the other hinge comprises a plate which is looated on the said further frame member hy a screw member -1741783 extending through a hole in the plate, which is of larger diameter than that of the screw member, and wherein the operating rod has a free end provided with a recess which in the third position of the operating handle engages a pivot edge of the said further frame member, whereby in the third position of the operating handle, the movable member can tilt about the screw member and pivot edge.

5. A hinge and pivot arrangement as claimed in any of claims 1 to 4, wherein a second stay is pivoted at one end to the said ohe frame member and a Sjfcud on the movable member engages a slot in the free end of the second stay when the movable member is closed, whereby when the operating handle is in the third position and the movable member is tilted relative to the further frame member the stud slides along the slot in the second stay.

6. A hinge and pivot arrangement as claimed in any preceding claim, wherein a pin projects from the movable member, and co-operates with a retaining member mounted on said another frame member, whereby when the movable member is tilted the pin locates beneath the retaining member to guard against the movable member from being lifted out of the frame.

7. A hinge and pivot arrangement substantially as hereinbefore described with reference to the accompanying drawings.