[0001] The object of the present invention is a hinge arrangement for installing a mirror
door of a mirror cabinet onto the frame of the mirror cabinet, which hinge arrangement
comprises a part to be fastened to the frame of the mirror cabinet, i.e. a hinge support,
and a part to be fastened to the mirror door of the mirror cabinet, i.e. a hinge,
in the frame of which mirror cabinet an aperture is made, into which aperture a hinge
support is fastened in a shape-locking manner, and in which hinge support are fixed
pins in its top end and bottom end, which pins sink into the corresponding holes of
the hinge. The object of the invention is also a mirror cabinet.
[0002] Mirror cabinets are typically used in bathrooms, washrooms and toilets. It is called
a mirror cabinet because its doors are glass mirrors. Mirror doors are very typically
fastened to the cabinet frame with so-called 'kitchen hinges', which are usually glued
to the mirror part and fixed to the cabinet frame with screws, the frame being manufactured
from wood material. Another widely used method is to wedge the mirror into a U-shaped
wall of the hinge with a blunt-tipped, usually plastic, screw fastening.
[0003] A so-called 'kitchen hinge' typically comprises many parts. A U-shaped wedge hinge
can comprise just one part plus fastening screws, but this solution achieves only
a limited number of properties.
[0004] Both methods are susceptible to accidents because if the gluing fails, or when fastening
screws that may loosen over time are used, the mirror is in danger of falling.
[0005] In solutions known in the art, installation and detachment of a mirror requires tools.
For example, in the installation phase of the cabinet, it is best to detach the mirrors
so that they are not broken in the installation.
[0006] The opening angle of mirror doors generally ranges between 95° and up to even more
than 200°.
[0007] Current hinge solutions are generally those to be glued or those to be screwed, but
it is not possible to use both options with one hinge solution.
[0008] In kitchen hinges, vertical and horizontal adjustment of a mirror door is possible
by turning the hinge screws. In a wedging hinge, adjustment is also possible steplessly
within the limits of the surface area of the hinge. This, however, increases the risk
of an accident when the mirror is slid closer to the edges of the hinge.
[0009] Kitchen hinges are generally 'non-handed', i.e. they are suited for use on both sides.
U-shaped wedging hinges are typically 'handed'.
[0010] The aim of the present invention is to provide a hinge for a mirror cabinet, which
hinge is not conjoined with the problems occurring in prior-art solutions. The hinge
according to the invention is characterized in that the hinge support has a joint,
that divides the hinge support in the vertical direction into a top part and a bottom
part, and which joint enables the joining together of the hinge and the hinge support
by turning the top and bottom part of the hinge support around the joint in relation
to each other.
[0011] One preferred embodiment of the hinge according to the invention is characterized
in that the joint is situated in essentially the center of the hinge support in the
height direction of the hinge support.
[0012] Another preferred embodiment of the hinge according to the invention is characterized
in that the fastening of the hinge support onto the frame of the mirror cabinet flexibly
and in a shape-locking manner is implemented with flexible claws, that lock behind
the counterpart of the frame of the mirror cabinet.
[0013] Yet another preferred embodiment of the hinge according to the invention is characterized
in that the door of the mirror cabinet is fastened to the hinge by gluing.
[0014] In addition, the invention is characterized by what is mentioned in the other dependent
claims 5-8.
[0015] The mirror cabinet that is an object of the invention is characterized by what is
defined in independent claim 9.
[0016] One advantage of the invention that can be mentioned is that the hinge arrangement
is both installable and also detachable quickly and reliably without tools. The hinge
arrangement is also extremely safe also in possible fault situations.
[0017] In the following, the invention will be described in more detail by the aid of some
preferred embodiments with reference to the attached drawings, wherein
Fig. 1 presents the bottom corner of a mirror cabinet in which the hinge arrangement
according to the invention is used.
Fig. 2 presents a hinge installed into position and the opening angle of the door
of the mirror cabinet.
Fig. 3 presents a hinge according to one preferred embodiment of the invention.
Fig. 4 presents a hinge support according to the invention.
Fig. 5 presents a hinge according to another preferred embodiment of the invention.
Fig. 6 presents a hinge according to Fig. 4 and a hinge counterpart fastenable to
it, between which the mirror is fastenable.
Fig. 7 presents a hinge support as viewed from the side.
Fig. 8 presents a hinge support as viewed from above.
[0018] Fig. 1 presents the bottom corner of a mirror cabinet, to which corner a hinge arrangement
according to the invention is fastened. A mirror cabinet typically has four hinges,
two on each edge, one above and the other below. In the frame part 1 of the mirror
cabinet an aperture 2 is made, into which aperture the hinge support 3 of the hinge
arrangement is fastened. The actual hinge 4 is fastened to the hinge support 3, the
mirror door 6 of the mirror cabinet in turn being fastened to the hinge in the manner
presented in Fig. 2. The mirror door 6 in this embodiment is fastened between the
hinge 4 and its counterpart 5. The joint is locked with a screw (not presented) that
extends through a hole in the mirror door from the hinge 4 into the counterpart 5.
[0019] The hinge support 3 is therefore pushed into the aperture 2 of the frame 1 of the
mirror cabinet, to which frame it locks with a shape-closing and spring-like locking
method in the manner described later. Thus, neither tools nor extra parts are needed
for fastening the hinge support to the frame.
[0020] It can be seen from Fig. 2 that the opening angle of the mirror door of the mirror
cabinet is in this case approx. 135°, but this of course can vary.
[0021] Fig. 3 presents a hinge 4 according to one embodiment of the invention. In this embodiment,
toothing 7 is formed on that surface of the hinge that comes against the mirror door
6. Fig. 6 also presents the counterpart 5 of the hinge 4, which likewise has toothing
8. These toothings come face-to-face and enable horizontal adjustment of the mirror
in 1.0 mm steps. The toothing 8 of the counterpart 5 is formed on the pin 9. The fastening
of the mirror to the hinge is locked with a screw, which is screwed through the hinge
4 and mirror into the pin 9.
[0022] Figures 4 and 7 present a hinge support 3, in which are fixed pins 10 and 11 that
sink into the corresponding holes 12 and 13 of the hinge 4, in which case a joint
rotating around the center line of the pins 10, 11 is produced. The separate joint
pin or joint shaft typical to hinges is thus replaced by the shaping of the parts.
A feature special to the solution is the joint 14 in the center of the hinge support
3 in the height direction, the joint dividing the hinge support in the vertical direction
into a top part and a bottom part, and which joint enables the putting together of
the parts 3 and 4 in such a way that only two parts are needed for the functional
assembly. When this assembly is installed in the frame 1 of the mirror cabinet, the
frame being especially shaped and apertured for it, the frame prevents the opening
of the joint of the hinge support 3. What is extremely essential is the positioning
of the joint and the dimensioning of the entity in such a way that functionality is
not lost even if the hinge 4 and hinge support 3 were damaged when in their position.
This feature enables dimensioning of the joint of a hinge support functioning sufficiently
easily with the force of a finger. The hinge support 3 and hinge 4 are preferably
plastic. Presented above is an embodiment wherein the joint 14 is situated in essentially
the center of the hinge support 3 in the vertical direction. It could, however, also
be at another point in the vertical direction of the hinge support 3.
[0023] The hinge support 3 is locked to the frame 1 of the mirror cabinet with a shape-closing
and spring-like locking shape without separate additional parts. The locking is openable
with a finger and without tools. The locking facilitates assembly because the assembly
can be performed simply, by pressing the preassembled subassembly formed by the hinge
4 and hinge support 3 into the aperture 2 in the frame. In practice, shape-closing
and spring-like locking is achieved with flexibly installed claws 15 that in a locking
situation lock behind the counterpart 15' in the frame 1, e.g. in the manner shown
by Fig. 2. The claws 15 can also be seen in Figs. 1, 4 and 8.
[0024] In the above, the fastening of a mirror door 6 to a hinge 4 by means of a counterpart
5 is described by referring e.g. to Figs. 2 and 6. Another option is to glue the mirror
door to the hinge 4. In this case, the hinge is according to Fig. 5, i.e. it does
not have toothing and a screw hole. The surface of the hinge 4 coming against the
mirror door 6 is then as even as possible for ensuring the success of the gluing.
[0025] What is special to the solution are the two locking pins and two locking shapes.
In this way the certainty is increased that an accident dangerous to the user does
not occur in the event of yet one more fault. Having two locking shapes also eliminates
unintentional detachment of the hinge support 3.
[0026] The counterpart 5 of the hinge 4 is shaped in such a way that hinge and hinge support
combinations installed onto two counterparts 5 installed on the same mirror are not
able to turn into a position in which their installation into the frame 1 of a mirror
cabinet would not succeed in a straightforward manner.
[0027] The essential parts of the hinge arrangement according to the invention, such as
the hinge support, can be shaped symmetrically in relation to the horizontal center
plane in such a way that from the same parts both the right-hand and the left-hand
version are obtained for the mirror cabinet by turning the parts around in relation
to the horizontal plane.
[0028] It is obvious to the person skilled in the art that the invention is not limited
to the embodiments described above, but that it can be varied within the scope of
the claims presented below.
[0029] The characteristic features possibly presented in the description in conjunction
with other characteristic features can also, if necessary, be used separately to each
other.
1. A hinge arrangement for installing a mirror door (6) of a mirror cabinet onto the
frame (1) of the mirror cabinet, which hinge arrangement comprises a part to be fastened
to the frame (1) of the mirror cabinet, i.e. a hinge support (3), and a part to be
fastened to the mirror door (6) of the mirror cabinet, i.e. a hinge (4), in the frame
(1) of which mirror cabinet an aperture (2) is made, into which aperture the hinge
support (3) is fastened in a shape-locking manner, and in which hinge support (3)
are fixed pins (10, 11) in its top end and bottom end, which pins sink into the corresponding
holes (12, 13) of the hinge (4), characterized in that the hinge support (3) has a joint (14) that divides the hinge support in the vertical
direction into a top part and a bottom part, and which joint (14) enables the joining
together of the hinge (4) and the hinge support (3) by turning the top and bottom
part of the hinge support (3) around the joint (14) in relation to each other.
2. A hinge arrangement according to the claim 1, characterized in that a joint (14) is situated in essentially the center of the hinge support (3) in the
height direction of the hinge support (3).
3. A hinge arrangement according to either claim 1 or 2, characterized in that the fastening of the hinge support (3) onto the frame (1) of the mirror cabinet flexibly
and in a shape-locking manner is implemented with flexible claws (15) that lock behind
the counterpart (15') of the frame (1) of the mirror cabinet.
4. A hinge arrangement according to any of claims 1-3, characterized in that the door (6) of the mirror cabinet is fastened to the hinge (4) by gluing.
5. A hinge arrangement according to any of claims 1-3, characterized in that the door (6) of the mirror cabinet is fastened to the hinge (4) by shape-locking
it between the hinge (4) and the counterpart (5) of the hinge, and in that the fastening is locked with a screw that extends through the hinge (4) and mirror
door (6) into the counterpart (5).
6. A hinge arrangement according to claim 5, characterized in that on the hinge (4) and on its counterpart (5) is toothing (8, 9), which intermesh with
each other and enable stepped horizontal adjustment of the mirror door (6).
7. A hinge arrangement according to claim 6, characterized in that the adjustment step is 1.0 mm.
8. Hinge arrangement according to any of claims 1-7, characterized in that the essential parts of the hinge arrangement, such as the hinge support (3), are
made to be symmetrical in relation to the horizontal center plane, in which case the
same part is fittable onto the left-hand side or onto the right-hand side by turning
the part around.
9. Mirror cabinet, characterized in that in the mirror cabinet is a hinge arrangement according to any of claims 1-8.