CA2045302C

CA2045302C - Hinge

Info

Publication number: CA2045302C
Application number: CA002045302A
Authority: CA
Inventors: Fredi Dubach; Erich Rock
Original assignee: Julius Blum GmbH
Current assignee: Julius Blum GmbH
Priority date: 1990-06-25
Filing date: 1991-06-24
Publication date: 1996-03-26
Anticipated expiration: 2011-06-24
Also published as: EP0463439B1; JPH0585971U; JP2515835Y2; AT397407B; ATE103033T1; CA2045302A1; DE59101188D1; ATA134290A; EP0463439A1

Abstract

A hinge, in particular a folding door hinge, having a hinge arm which may be mounted by means of a base plate on a furniture unit part. The hinge arm may be adjusted in two dimensions on the base plate and is connected via at least one joint pin to a hinge pot.
The end of the hinge arm facing the joint pin ins angled off and there is mounted on this end a linearly displaceable extension part which carries the joint pin.

Description

Description The invention relates to a hinge having a hinge arm which may be mounted by means of a base plate or the like to a first furniture unit part, which may be adjusted in preferably at least two ~i~ensions on the base plate and which is connected via at least one joint pin to a hinge pot or the like which is mounted on a second furniture unit part.
The invention provides a hinge which may advantageously be used for a folding door which lines an inner corner.
Such inner corners are found for example in fitted or custom kitchens.
By means of the hinge according to the invention, it is advantageously to be possible both to open only one door leaf of the folding door, so that the leaf projects into the room, or indeed both door leaves, which are then advantageously to be positioned such that they bear against the adjacent front side of the kitchen cabinet or the like.
According to the invention, this is achieved by using a hinge for folding doors comprising a first hinge part fastenable to the rear side of a first folding door leaf and a second hinge part fastenable to the rear side of a second folding door leaf, said second hinge part being articulated to the first hinge part via a joint with at least one joint ` 204~332 pin, the first hinge part comprising a hinge arm which is adapted to be adjustably fastened to a base member, the end of said hinge arm which faces the joint pin (or joint pins) being angled off and carrying at~said end preferably an extension part adjustably fastened to the angled-off end of the hinge arm, and the mounting plane of the first hinge part associated with the rear side of the first door leaf including in the closed position a reflex angle, preferably of 270, with the mounting plane of the second hinge part, which is preferably a hinge pot, associated with the rear side of the second door leaf.

In accordance with the current prior art, doors which are either l6 or 22 mm thic~ are used, or chipboard which is l6 or 22 mm thick for producing kitchen doors is used.
In order that the hinge according to the invention can be used with both door thic~nesses, the extension part is mounted to be linearly displaceable. The angled-off end of the hinge arm is in this case at an angle of approximately 45 to the plane of mounting of the hinge arm. Here, the plane of mounting corresponds to the rear side of the door leaf of the folding door on which the hinge arm is mounted.
Advantageously, it is provided for the angled-off end of the hinge arm to have, in a manner known per se, an elongate hole through which a clamping screw which is mounted in the extension part projects.
In order that the outer door leaf in which the hinge pot is secured does not swing too freely and also to provide a stop which fixes this door leaf at an angle of 90 to the door leaf on which the hinge arm is mounted, in an example embodiment of the invention it is provided for there to be mounted on the extension part a pressing part under spring action, which presses against a control cam known per se which is constructed around the hinge pot, and for the control cam to have, in a manner known per se, ~ central stop, which may be overcome, for the pressing p a r t .
Advantageously, a helical spring supported on the extension part is mounted in the pressing part.
The invention further relates to a folding door mounting set in which the door leaves are connected by means of hinges according to the invention, and the door leaf articulated to the furniture carcass is mounted on the furniture carcass by means of hinges which have an opening angle of at least l40, preferably l70.
An example embodiment of the invention is described below in detail with reference to the figures of the attached drawing.
Fig. l shows a plan view of a folding door having a hinge according to the invention, or having a folding door mounting set according to the invention, in the inner corner of a fitted ~ 3 2045302 cabinet; Fig. 2 shows a plan view of the folding door with the folding door opened and flapped open; Fig. 3 shows a plan view of a hinge according to the invention in the mounted position;
Fig. 4 shows a similar view to that of Fig. 3, with the hinge arm and the extensi~n part as well as the pressing part shown in section; Figs. 5 to 7 each show a detail section through the hinge arm and the extension part; and Fig. 8 shows a view from the direction of the arrow A in Fig. 4.
As can be seen from Figs. 1 and 2, the hinge 1 according to the invention connects the two door leaves 2, 3 which are arranged in the inner corner of a fitted cabinet. The door leaf 3 is secured by means of a hinge 4 to a side wall 5 of the furniture unit, and the door leaf 2 bears freely against a side wall 5 of the furniture unit, which is at a right angle to that side waLl S of the furniture unit to which the door leaf 3 is fastened.
In the figures of the drawings, the door panels adjoining the folding doors are designated 15. These door panels 15 are secured in conventional manner along an edge, to a side wall 5 of the furniture unit by means of normal hinges.
In the closed state, the door leaves 2,3 a,d their front sides (visible sides) are at right angles to one another. The door leaf 3 is mounted by means of hinges 4 on the side wall 5 of the furniture unit, with the hinges 4 having an opening angle of approximately 170. The 25 hinges 4 may for example be constructed as described in AT-PS 360 852 of the Applicant.
The folding door can now be opened either half-way or completely. If it is opened half-way, the door leaf 2 is brought into the position shown in dot-and-dashed lines in Fig. 1. This makes access to approximately half the cabinet part covered by the folding door possible.
If the folding door is to be opened completely, then the two door leaves 2, 3 are aligned in one line, as in Fig. 2, and the door leaf 3 is pivoted by means of the hinge 4 by approximately 170, so that the folding door comes to lie in front of the adjacent doors 15 of the fitted cabinet.

r 4 2 0 4 5 3 0 2 The hinge 1 is described below:
The hinge according to the invention has a hinge arm 6 which is mounted in conventional manner on a base plate 13. The base plate 13 is screwed to the rear side of the door leaf 3 he~d by the hinges 4 at the side wall 5 of the furniture unit or is hela on this door leaf3 ~ means of dbwels.
The hinge arm 6 is secured ~o the base plate 13 in conventional manner, if necessary by means of an intermediate piece. Advantageously, the hinge arm 6 is secured to the base plate 13 as described in EU-PS 0 200 744 of the Applicant.
In the figures of the drawings, the joint adjustment screw 16 and the clamping screw 17, which also serves for depth adjustment ~paral~el to the mounting plane 19 and vertical~y to the joint pin 10) are further drawn in.
The front end 18 of the hinge arm 6 is angled off at an angle of 45 to the plane 19 of mounting of the hinge arm 6.
Mounted on this angled-off end 18 is the extension part 7 which carries the joint pin 10 of the hinge 1. Articulated on the joint pin 10 is the hinge pot 8 which is inserted in the rear side of the second door leaf 2.
The folding door hinge according to the present invention differs from conventional concealed pot hinges essentially in that the mounting planes 19, 19' of the two hinge parts, that is of the hinge arm 6, on the one hand, and of the hinge pot 8, on the other hand, do in the closed position not include a right angle (as in the case of hinge 4 in Fig. 1) or an obtuse angle (as in the case of hinges for 40 cross corner cabinet doors) but a reflex angle B (180 - 360), preferably of 270, (Fig. 1). The mounting planes 19, 19' lie at the rear sides of the two door leaves 2, 3 of the folding door. The folding door hinge is therefore a "concealed" hinge, which means a hinge which is not visible when the folding door is in the closed position.
As already mentioned at the outset, in conventional furniture construction, plates having a thickness of 22 or 16 mm are used. In the figures of the drawings, the thickness of the door drawn as a solid line corresponds to a thickness of 22 mm, and the door which is 16 mm thick is drawn in dotted lines.

~ ~ 5 2045302 In order that the hinge 1 can also be used with differing door thicknesses, the extension part 7 at the angled-off end 18 of the hinge arm 6 is rectilinearly linearly displaceable in a direction vertical to the joint pin 10. In the example embodiment, the angled-off end 18 has an elongate hole 20, and a clamping screw 12 which projects through the elongate hole 20 is mounted in the extension part 7. As a result, the extension part 7 can be adjusted over the length of the elongate hole 20, so that the inner edges of the two door leaves 2, 3 always lie flush against one another when the folding door is closed.
Provided in the hinge pot 8 is a control cam 21 which has a stop 22 approximately in the centre. A pressing part 9 which presses by means of a nose 23 against the control cam 21 or which bears by means of this nose 23 against the stop 22 is mounted in the extension part 7. The pressing part 9 is mounted pivotally on the extension part 7 by way of a pin 11.
In the front region, the pressing part 9 has a cutout 24 which receives a compression spring 14. The compression spring 14 is here supported on the central web of the extension part 7, which is constructed to have a U-shaped profile. The compression spring 14, which in the example embodiment is a helical spring, presses the pressing part 9 against the control cam 21.
The door leaves 2, 3 remain in the position shown in Figs.
3 and 4 when the folding door is closed, as a result of the stop 22. If the folding door is to be opened half-way, as shown in dot-and-dashed lines in Fig. 1, then the door leaf 2 can be pivoted if the force of the spring 14 is overcome. The nose 23 of the pressing piece 9 in this case yields to the stop 22 and slips over the part of the control cam 21 shown on the left in the figures of the drawing. ~
If the folding door 22 is to be brought into the position shown in Fig. 2, then first the door wing 3 is pivoted out of the inner corner by means of the hinge 4, whereupon the door leaf 2 is pivoted in the opposite direction, so that the door leaves 2, 3 are approximately aligned in a straight line. Then, both door leaves 2, 3 can be pivoted about the axis of rotation of the hinge 4, i.e. can be opened to such an extent that they are located directly in front of the door leaves 15 of the adjacent doors.

Claims

1. A furniture hinge comprising:
a base member to be mounted on one furniture part; a hinge arm mounted on said base member and defining a mounting plane; said hinge arm including an end portion extending in a direction inclined at an angle to said mounting plane; a hinge element to be mounted on another furniture part; an extension member articulated to said hinge element to enable relative pivotal movement therebetween; and means for mounting said extension member on said inclined end portion of said hinge arm at positions selectively adjustable relative thereto linearly in said direction, characterized in that the angled-off end of the hinge arm is angled at an angle of around 45° relative to the mounting plane of the hinge arm and that there is supported on the extension member a spring-loaded pressing member, which presses upon a control cam constructed in the hinge element mounted on the other hinge element.

2. A hinge as claimed in claim 1, wherein said extension member is articulated to said hinge element by at least one hinge pin.

3. A hinge as claimed in claim 1, wherein said hinge element comprises a hinge pot to be mounted in a recess in the another furniture part.

4. A hinge as claimed in claim 1, wherein said mounting means comprises a slot extending, through said inclined end portion and elongated in said direction, and a clamping screw extending through said slot and engaged with said extension member.

5. A hinge as claimed in claim 1, wherein said control cam has thereon a central stop against which said pressing member is biased to thereby tend to maintain a pivot position of said hinge element relative to said extension member.

6. A hinge as claimed in claim 5, wherein said pressing member has extending therefrom a projection urged into abutment with said central stop.

7. A hinge as claimed in claim 6, further comprising a compression sprang mounted between said extension member and said pressing member and urging said pressing member away from said extension member toward said control cam.

8. A hinge for hingingly connecting first and second door panels to form a folding door such that the door panels are foldable relative to each other between a closed position and opened positions, said hinge comprising:
a base member to be mounted on a rear side of the first door panel; a hinge arm mounted on said base member and defining a first mounting plane, said hinge arm including an end portion extending in a direction inclined at an acute angle to said first mounting plane; a hinge element to be mounted on a rear side of the second door panel and defining a second mounting plane; an extension member mounted on said inclined end portion of said hinge arm and articulated to said hinge element, thereby to enable pivotal movement therebetween and the relative folding of the door panels;
means for enabling adjustment of the mounting position of said extension member on said inclined end portion of said hinge arm linearly in said direction; and said first and second mounting planes including a reflex angle at a relative pivotal position between said extension member and said hinge element corresponding to the closed position of the door panels.

9. A hinge as claimed in claim 8, wherein said extension member is articulated to said hinge element by at least one hinge pin.

10. A hinge as claimed in claim 8, wherein said hinge element comprises a hinge pot to be mounted in a recess in the second door panel.

11. A hinge as claimed in claim 8, wherein said adjustment enabling means comprises a slot extending through said inclined end portion and elongated in said direction, and a clamping screw extending through said slot and engaged with said extension member.

12. A hinge as claimed in claim 8, wherein said direction is inclined at approximately 45° to said first mounting plane.

13. A hinge as claimed in claim 8, further comprising a control cam on said hinge element, and a pressing member mounted on said extension member and spring biased toward said control cam.

14. A hinge as claimed in claim 13, wherein said control cam has thereon a central stop against which said pressing member is biased to thereby tend to maintain a pivot position of said hinge element relative to said extension member.

15. A hinge as claimed in claim 14, wherein said pressing member has extending therefrom a projection urged into abutment with said central stop.

16. A hinge as claimed in claim 13, further comprising a compression spring mounted between said extension member and said pressing member and urging said pressing member away from said extension member toward said control cam.

17. A hinge as claimed in claim 8, wherein said reflex angle is approximately 270°.

18. A folding door assembly to be mounted on an article of furniture, said assembly comprising first and second door panels, at least one first hinge for mounting said first door panel on the article of furniture for opening and closing movement relative thereto, and at least one second hinge mounting said second door panel on said first door panel to enable folding movement relative thereto between a closed position and opened positions, said at least one second hinge comprising:
a base member mounted on a rear side of said first door panel; a hinge arm mounted on said base member and defining a first mounting plane, said hinge arm including an end portion extending in a direction inclined at an acute angle to said first mounting plane; a hinge element mounted on a rear side of said second door panel and defining a second mounting plane; an extension member mounted on said inclined end portion of said hinge arm and articulated to said hinge element, thereby to enable pivotal movement therebetween and the relative folding of said door panels; means for enabling adjustment of the mounting position of said extension member on said inclined end portion of said hinge arm linearly in said direction; and said first and second mounting planes including a reflex angle at a relative pivotal position between said extension member and said hinge element corresponding to said closed position of said door panels.

19. An assembly as claimed in claim 18, wherein said extension member is articulated to said hinge element by at least one hinge pin.

20. An assembly as claimed in claim 18, wherein said hinge element comprises a hinge pot mounted in a recess in said second door panel.

21. An assembly as claimed in claim 18, wherein said mounting means comprises a slot extending through said inclined end portion and elongated in said direction, and a clamping screw extending through said slot and engaged with said extension member.

22. An assembly as claimed in claim 18, wherein said direction is inclined at approximately 45° to said mounting plane.

23. An assembly as claimed in claim 18, further comprising a control cam on said hinge element, and a pressing member mounted on said extension member and spring biased toward said control cam.

24. An assembly as claimed in claim 23, wherein said control cam has thereon a central stop against which said pressing member is biased to thereby tend to maintain a pivot position of said hinge element relative to said extension member.

25. An assembly as claimed in claim 24, wherein said pressing member has extending therefrom a projection urged into abutment with said central stop.

26. An assembly as claimed in claim 23, further comprising a compression spring mounted between said extension member and said pressing member and urging said pressing member away from said extension member toward said control cam.

27. An assembly as claimed in claim 18, wherein said reflex angle is approximately 270°.

28. An assembly as claimed in claim 18, wherein said at least one first hinge has an opening angle of at least 140°.

29. An assembly as claimed in claim 28, wherein said opening angle is at least 170°.