FRICTION HINGE FOR OUTWARD OPENING TOP HUNG WINDOWS

Abstract

A friction hinge for outward opening top hung windows comprising a support guide of C-shaped section, a moving lever, intermediate levers, a sliding block mounted so that it is capable to slide in the support guide, which are pivotally connected to each other and provide opening of the movable lever in its plane, wherein its rotation axis simultaneously slides along the guide and moves away from it in the opening direction.

Claims

1. A friction hinge for outward opening top hung windows, the fringe hinge comprising: a support guide of C-shaped section, a moving lever, intermediate levers, a sliding block mounted and configured to and/or capable to slide in the support guide, which are pivotally connected to each other and provide opening of the movable lever in a plane, wherein the rotation axis of the movable lever simultaneously slides along the guide and moves away from the guide in the opening direction, wherein the hinge is supplemented by a limiting block implemented in the form of a sliding block, mounted and configured to and/or capable to slide in the support guide and connected with the main sliding block, the limiting block has a movable locking element and an elastic element located in a cavity of the limiting block, in the support guide, on the side of the cavity, there are at least two holes for interaction with the movable locking element of the limiting block, the movable locking element is made in the form of an extended body and has: on the top at an end on the side of the main sliding block, an upper end locking lug with a stop surface at the end and with an inclined surface at the opposite side of the lug along a length, on the top in the area of the middle, an upper curved positioning lug, a support end at the side opposite to the position of the end locking lug, on the bottom at a space from the support end, a support lug, an area with the inclined surface in the bottom from the side of the elastic element which provides a taper to the end of the movable locking element, the cavity of the limiting block has: a step lug from the side of the support end of the movable locking element, a support lug in the area of the middle of the cavity length, a spacing between lugs of the cavity, a spacing of the cavity for receiving the elastic element from the side of the upper end locking lug, a movable locking element is mounted so as to slide and pivot in the cavity when parts of the locking element interact with the surface of the guide, the elastic element and parts of surfaces of the cavity during moving of the limiting block along the guide, doing this, the following possible positions of the limiting block are provided: a free movement position, where due to the elastic element the upper curved lug of the locking element is pressed to the internal surface of the guide, the lower support lug and the support end of the locking element abut against the step lug of the cavity, and the upper end locking lug does not touch the surface of the guide, a locking position, where due to the pressing by the elastic element the upper end locking lug of the movable locking element is located in the hole for locking position in the guide, the upper curved positioning lug rests on the internal surface of the guide, the lower support lug by a side surface abuts against the side surface of the support lug of the cavity and together with the support end are located in the spacing of the cavity between a step lug and support lug, a position of limiting of hinge closing, where the end locking lug is located in the hole of the guide and abuts against the wall of the last by a stop surface, the support end of the locking element abuts against the step lug of the cavity, also the design provides possibility of switching the position of the movable locking element from the locking position or the position of limiting of closing into the free movement position from an intermediate position provided by the holes in the guide, moreover, the hinge has an extreme hinge opening position, where the possibility of going out of the curved positioning lug into the last hole of the guide for switching the movable locking element into the free movement position of the limiting block is provided, wherein the upper end locking lug in the extreme hinge opening position remains under the surface of the guide.

2. The friction hinge of claim 1, further comprising: an elastic element connecting the guide and the sliding block and having possibility to act in the direction of moving of the sliding block along the guide.

3. The friction hinge of claim 2, wherein a gas spring with a cylinder and a rod connecting the guide and the sliding block is used as the elastic element, and connected to the last through a long slot in the guide from the side opposite to the sliding block mounting side.

4. The friction hinge of claim 1, wherein the sliding block and the limiting block are implemented in the form of a part with one solid base.

5. The friction hinge of claim 1, wherein the cavity of the limiting block is implemented partly open from the side of the flat part of the guide, and wherein the movable locking element and the elastic element located in the cavity are hold by the internal surface of the guide.

6. The friction hinge of claim 1, further comprising: a C-shaped section support guide, a movable lever, intermediate levers, a sliding block mounted configured to and/or capable to slide in the support guide, a stop in the upper part of the guide for the upper part of the movable lever, a lower intermediate lever is pivotally connected with one end to the lower part of the support guide and with the other end to the lower part of the movable lever, an upper intermediate lever is pivotally connected with one end to the upper part of the movable lever and with the other end to the sliding block, the middle intermediate lever is pivotally connected with one end to the sliding block and with the other end to the lower intermediate lever, between pivot connections.

7. The friction hinge of claim 1, further comprising: a C-shaped section support guide, a movable lever, intermediate levers, a sliding block mounted configured to and/or capable to slide in the support guide, a stop in the upper part of the guide for the upper part of the movable lever, a lower intermediate lever is pivotally connected with one end to the lower part of the support guide and with the other end to the lower part of the movable lever, an upper intermediate lever is pivotally connected with one end to the upper part of the movable lever and with the other end to the sliding block, the middle intermediate lever is pivotally connected with one end to the sliding block and with the other end to the lower intermediate lever, between pivot connections, the first additional lever pivotally connects the movable lever and the middle intermediate lever in their middle areas, the second additional lever pivotally connects the lower intermediate lever with the second sliding block movably mounted on the guide.

Description

BRIEF DESCRIPTION OF DRAWINGS

[0061] FIG. 1 illustrates the general view of the hinge.

[0062] FIG. 2 illustrates the hinge, side view as seen from the sliding block position in the guide.

[0063] FIG. 3 illustrates the limiting block, general view.

[0064] FIG. 4 illustrates the limiting block, side view.

[0065] FIG. 5 illustrates the limiting block mounted in the guide, free movement position.

[0066] FIG. 6 illustrates the limiting block mounted in the guide, intermediate position of the movable locking element.

[0067] FIG. 7 illustrates the limiting block mounted in the guide, intermediate position of the movable locking element.

[0068] FIG. 8 illustrates the limiting block mounted in the guide, intermediate position of the movable locking element.

[0069] FIG. 9 illustrates the limiting block mounted in the guide, intermediate position of the movable locking element.

[0070] FIG. 10 illustrates the limiting block mounted in the guide, locked position.

[0071] FIG. 11 illustrates the limiting block mounted in the guide, position of limiting of hinge closing.

[0072] FIG. 12 illustrates the limiting block mounted in the guide, extreme position of hinge opening.

[0073] FIG. 13 illustrates the limiting block mounted in the guide, position of transfer into the free movement position in the area of the extreme position of hinge opening.

[0074] FIG. 14 illustrates the limiting block mounted in the guide, free movement position.

[0075] FIG. 15 illustrates a mansard window with an opened sash on the hinges.

DESCRIPTION OF EMBODIMENTS

[0076] The illustrations contain the following notations:

[0077] 1—guide

[0078] 2—movable lever of the hinge

[0079] 3—intermediate levers

[0080] 4—sliding block

[0081] 5—stop for the upper part of the movable lever

[0082] 6—limiting block

[0083] 7—cavity of the limiting block

[0084] 8—movable locking element

[0085] 9—elastic element

[0086] 10—support end of the locking element

[0087] 11—lower support lug

[0088] 12—upper curved positioning lug

[0089] 13—upper end locking lug

[0090] 14—lower beveled surface of the movable locking element

[0091] 15—step lug of the cavity

[0092] 16—support lug of the cavity

[0093] 17—spacing between lugs of the cavity

[0094] 18—spacing of the cavity for the elastic element

[0095] 19—holes for locking positions in the guide

[0096] 20—distance between the holes

[0097] 21—hole of the extreme position

[0098] 22—gas spring

[0099] 23—hinge assembly

[0100] 24—window frame

[0101] 25—window sash

[0102] 26—glass unit

[0103] 27—facing element of the window

[0104] The hinge in FIG. 1 and FIG. 2 has a support guide 1, a movable lever 2, three intermediate levers 3, a sliding block 4 mounted so that it can slide in the support guide 1, to which two intermediate levers 3 are pivotally attached, a stop 5 in the upper part of the guide 1 for the upper part of the movable lever 2, the lower intermediate lever is pivotally connected with one end to the lower part of the support guide 1 and with the other end to the lower part of the movable lever 2, the upper intermediate lever 3 is pivotally connected with one end to the upper part of the movable lever 2 and with the other end to the sliding block 4, the middle intermediate lever is pivotally connected with one end to the sliding block 4 and with the other end to the lower intermediate lever, between its pivot connections, [0105] a limiting block 6 in FIG. 3-FIG. 14 is mounted in the guide 1 as so to be capable to slide and is connected to the sliding block 4, in the limiting block 6 there is a cavity 7, in which there is an elastic element 9 and a movable locking element 8, the cavity 7 has a step lug 15, a support lug 16, a spacing 17 between these lugs, a spacing 18 to receive the elastic element 9, [0106] the movable locking element 8 and the elastic element 9 are hold within the cavity 7 by the internal surface of the guide 1 and from the opened side of the guide by the internal surface of the stop member (not shown in the figure), [0107] the movable locking element 8 is implemented in the form of a plain extended body and has a support end 10 from the side of the step lug 15 of the cavity 7, a lower support lug 11, an upper curved positioning lug 12 in the area of the middle of the length, and an upper end locking lug 13 and a lower beveled surface 14 from the side of an area of a cavity for the elastic element, [0108] in the guide 1 there are holes 19 for locking positions and a hole 21 of the extreme position made through distances 20.

[0109] The movable locking element 8 is capable to move, namely, to slide and to tilt, in the cavity 7 when its parts interact with the surface of the guide 1, an elastic element 9 and parts of the cavity 7. It can take free movement positions in FIG. 5, locking position in FIG. 10, position of limiting of closing in FIG. 11.

[0110] The shape of the curved lug 12 is made in the form of an arc and provides sliding under the surface of the guide 1 while moving. The distance between the upper point of the curved lug 12 and the end of the upper end locking lug 13 is greater than the length of holes 19 for locking positions in the guide 1. The length of the extreme position 21 in the guide provides that the curved lug 12 can emerge into it.

[0111] The hinge has the extreme opening position when the upper end locking lug 13 does not emerge into the hole 21 of the extreme position but remains under the surface of the guide 1.

[0112] The lower beveled surface 14 of the movable locking element 8 provides better interaction with the elastic element 9 and possibility to create directed pressing force of the movable locking element 8 to the surface of the guide 1 and parts of the cavity 7.

[0113] On the side opposite to one of the sliding block mounting a gas spring 22 made in the form of a gas strut with a cylinder and a rod is mounted on the guide. One end of the gas spring is connected to the guide 1, and the other to the sliding block 4 through a slot in the guide 1. The gas spring 22 facilitates opening of the hinge and has damping action while closing.

[0114] The hinge operates as follows.

[0115] The original free movement position of the limiting block, FIG. 5.

[0116] In the original closed position of the movable lever 2 of the hinge the movable locking element 8 is located in the cavity 7 of the limiting block 6 in its free movement position, when due to the elastic element 9 the upper curved lug 12 of the locking element 8 is pressed to the inner surface of the guide 1, and the lower support lug 11 of the locking element 8 abut against the step lug 15 of the cavity, wherein the upper locking lug 13 does not touch the surface of the guide and does not prevent movement of the limiting block 6.

[0117] Transition from the free movement position of the limiting block to the locking position and the position preventing the hinge to close from the required opening position, FIG. 6-11.

[0118] During moving of the movable lever 2 of the hinge in the opening direction the main sliding block 4 moves together with the limiting block 6 along the guide 1 with the holes 19 for locking positions. When the locking element 8 passes the limiting block 6 of the first hole 19 for locking position, first, due to the pressure of the elastic element 9 the upper curved positioning lug 12 enters the hole. With further movement the upper curved lug 12 abut against the edge of the hole 19 of the guide 1, due to this the movable locking element 8 starts to shift inside the cavity 7 in the direction opposite to the motion, wherein the support end 10 and the lower support lug 11 move from the step lug 15 of the cavity 7 and shift along the spacing 17 of the cavity between its step lug 15 and support lug 16. With further movement, the lower support lug 11 abuts against the lug 16 of the cavity 7 engaging the lug, the upper curved lug 12 lowers and passes under the guide 1, after this the upper end locking lug 13 enters the hole 19 due to the elastic element 9. In this way the limiting block 6 switches into the locking position, FIG. 10, where due to the pressing by the elastic element 9 the upper end locking lug 13 of the movable locking element 8 is located in the hole 19 for locking position in the guide 1, the upper curved positioning lug 12 rests on the internal surface of the guide 1, the lower support lug 11 abuts against the support lug 16 of the cavity 7 and together with the support end are located in the lower point of the spacing 17 of the cavity between its step lug 15 and support lug 16. The arrangement of the mechanism of the limiting block 6 allows to freely move the movable lever 2 of the hinge to a required position of opening determined by the holes 19 in the guide 1, wherein the upper end locking lug 13 of the movable locking element 8 will lower under the surface of the guide 1 and consequently emerge in every hole 19 which it passes.

[0119] Locking of the position is effected during the inverse movement, when the hinge is opened to a required position, and the upper end locking lug 13 enters the corresponding hole 19 of the guide 1 due to the pressing by the elastic element 9. Doing this, the end locking lug 13 abut against the edge of the hole 19 of the guide 1, due to this the movable locking element 8 shifts in the direction opposite to the motion, and the support end 10 and the lower support lug 11 move from the support lug 16 of the cavity 7 in the direction of its step lug 15. With further movement in the direction of closing the support end 10 of the locking element 8 abuts the lower part of the step lug 15 of the cavity 7, due to this locking of the limiting block 6 on the guide 1 is achieved, consequently, of the sliding block 4 and movable lever 2 of the hinge and prevention of its free closing form the required locking position.

[0120] Transition from the locking position of the limiting block in the free movement position, FIG. 10-14.

[0121] The movable lever 2 of the hinge may be transferred from a locked position, FIG. 11, into a free movement position, FIG. 14, from any intermediate locking position which are provided with holes 19 in the guide 1. To do this, the movable lever 2 of the hinge being in a locking position, is moved in the opening direction up to the limiting block position, FIG. 12, in which the upper curved positioning lug 12 enters the next hole in the guide 19 or 21 due to pressing of the movable locking element 8 by an elastic element 9, wherein the support end of the locking element 10 and the lower support lug 11 are elevated, and upper end locking lug 13 remains under the spacing of the guide 1 between the holes 19 or 19 and 21. In this position the movable lever 2 of the hinge is stopped and the reverse motion in the direction of closing is started.

[0122] In the reverse motion from the described position the upper curved positioning lug 12 of the locking element 8 abuts the extreme edge of the hole 19 or 21, due to this during further movement the movable locking element 8 shifts in the cavity 7 in the direction inverted to the reverse motion. Further the support end 10 of the locking element 8 passes over the step lug 15 of the cavity 7, and the lower support lug 11 abuts against it, FIG. 13. In further movement, FIG. 14, the movable locking element 8 shifts in the movement direction due to the stop of the support lug 11, wherein the upper curved positioning lug 12 passes under the surface of the guide 1 and slides on it due to the pressing by the elastic element 9, and the upper end locking lug 13 lowers and do not touch the internal surface of the guide 1.

[0123] In such a position of the movable locking element 8 the hinge can be closed completely or displaced into any other previous opening position, in which, due to the movement direction change, the position of the locking element 8 can be switched from the free movement position to the locking position, similarly to the method described above.

[0124] Extreme hinge opening position. Transition from the locking position of the limiting block in the free movement position.

[0125] In the guide 1 there is a hole of the extreme position 21 located behind the last hole 19 for locking position. Its size provides receiving the upper curved positioning lug 12 of the movable locking element 8. The extreme hinge opening position is made so that when the hinge is opened the upper curved positioning lug 12 is capable to enter the hole 21 of the extreme position, wherein the upper end locking lug 13 remains under the surface of the guide 1 and in the extreme hinge opening position does not have possibility to go out into the hole 21 of the extreme position. Availability of the hole 21 of the extreme position enables to switch the position of the movable locking element 8 of the limiting block 6 similarly to the method described above, from the locking position in the previous hole 19 to the free movement position for full hinge closing or partial closing up to a required intermediate position.

[0126] FIG. 15 illustrates a mansard window with a facing element 27, in which a pair of hinges 23 described herein is applied, one of them is left-side and the other is right-side. The hinges are installed in the opening between a frame 24 and a sash 25. The guide 1 of each hinge 23 is attached to the frame 24, and the window sash 25 with a glass unit 26 is mounted on the movable levers 2.

[0127] The described design of the hinge may be applied in top hung outward opening windows, such as, for example, mansard windows, or any other windows, in which locking in intermediate opening positions and preventing of free spontaneous closing of sashes is desirable.

Industrial Applicability

[0128] The claimed invention complies with the requirement of industrial applicability as it can be implemented with the use of existing technical means.

References

[0129] Patent document 1: Patent 2014—CN 203430231.

[0130] Patent document 2: Patent 2006—RU 57787.

[0131] Non-patent document 3: Savio S.p.A. website: https://www.savio.it/prodotti.php?id_art=301&ln=ru.

[0132] Non-patent document 4: Savio S.p.A. website: https://www.savio.it/prodotti.php?id_art=1807&ln=ru.

[0133] Non-patent document 5: Savio S.p.A. website: https://www.savio.it/prodotti.php?id_art=1804&ln=ru.