Note: Descriptions are shown in the official language in which they were submitted.
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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
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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.
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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
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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.
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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
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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.
