[0001] The present invention relates to a furniture item with incorporated bed, in particular
a lowerable bed being extractable from the inside of the furniture item through rotation.
[0002] E.g. from
WO 2013 190449 a cabinet is known comprising a bed that is lowerable, by means of rotation about
a horizontal axis, while when it is raised it disappears inside the cabinet. To the
bed there is fixed a panel forming the front wall of the cabinet when the bed is vertical.
[0003] These types of furniture can be of two types. In the first type (see
EP2404528) the panel is smaller than the front perimeter of the cabinet, and with the bed vertical
it ends up inside the cabinet, flush with the perimeter frame of the cabinet. In the
second type the panel is larger than the front perimeter of the cabinet, and with
the bed vertical it ends up overlapped to the perimeter frame. We refer here to the
second type.
[0004] To allow the descent and forward rotation of the panel, it is evident that a system
must be devised to prevent the interference between the panel and the frame. Some
models have very complex mechanics that move forward the whole panel along with the
bedspring, indeed shifting also the rotation axis of the bed. For double-beds or with
wide-occupant spaces the weight to be moved and supported is prohibitive, and limits
the size of the bed. Other models (see fig. 6) divide the panel into two independent
parts: a bigger top panel 100, which is fixed to a bed 108, and a lower smaller panel
102, hinged at the bottom of the cabinet and lowerable outwards. The small panel 102
can arrange itself horizontal, parallel and under the bed 108, when the bed 108 is
lowered. The drawback is the necessary presence under the bottom of the cabinet of
a (bulky and expensive) drawer 106, which, despite being recycled as a storage unit,
actually serves to raise the cabinet to keep the bed 108 horizontal. In addition,
not only the small panel 102 functions as a tilting scoop which discharges into the
cabinet dust and dirt, but when it is horizontal it begins to move towards the vertical
position only after the bed 108 has been raised by about 45°. This delay may be dangerous
or increase the collected dust.
[0005] Therefore an improved technical solution is desired that solves at least one of these
problems, and to such solution the concept of the invention is addressed, as defined
in the appended claims, in which the dependent ones define advantageous variants.
[0006] It is therefore proposed a furniture item to be laid on ground, comprising
- a parallelepiped compartment with a bottom plane;
- a platform which can be lowered by means of rotation around a horizontal axis (rotation
axis of the bed) passing inside the compartment, so that the platform can be either
horizontal and parallel to the bottom plane, to sleep on it, or vertical, concealed
inside the compartment;
- a first panel integral with the platform and adapted to overlap the perimeter of the
compartment to partially close the compartment when the platform is vertical;
- a second panel that - in use - is placed inferiorly to the first panel and movably
connected (i.e. hinged, i.e. hinged to the bottom plane) to the lower part of the
compartment for (i) overlapping the perimeter of the compartment and close it partially
when the platform is vertical and (ii) lowering as the platform becomes horizontal;
- a mechanism for coupling the platform and the second panel, so that the displacement
of the platform from vertical to horizontal causes the second panel to sweep an acute
angle (e.g. an angle chosen between 10 and 75 degrees, preferably 45 degrees).
[0007] The terms "horizontal", "vertical", "on ground", "inferiorly", "lower" and "bottom"
are to be intended for the furniture item as normally in use.
[0008] The aforementioned furniture item is advantageous e.g. because it allows getting
rid of the known drawer unit under the compartment and/or limiting the entry of dirt
inside the compartment when the platform is horizontal. Furthermore, the upper edge
of the second panel, when inclined with respect to the bottom plane, can serve as
support for the platform in the horizontal position. Since the second panel remains
inclined and not horizontal, it can return vertical in less time, to the benefit of
security because the risk that it may tighten accidentally something or someone decreases.
[0009] According to a preferred embodiment, the mechanism is structured to constrain rigidly
the platform and the second panel to each other (namely it synchronizes the movement
of the platform and that of the second panel), so that a displacement of the platform
always corresponds, and preferably in a continuous manner, in the two displacement
directions for closing and opening, to a displacement of the second panel. The advantage
is that jerks or delays are avoided in the movement of second panel, the control and
safety of the furniture item improves because by acting on the platform a user operates
and controls also the second panel, and there is certainty for the opening and closing
of the second panel. Note that this feature, with the related advantages, is exploitable
also in furniture models wherein the second panel lowers until it is horizontal.
[0010] According to a preferred embodiment, the mechanism is adapted to tilt the second
panel by an angle such that the first panel, when it is horizontal, touches the second
panel's free end (the upper end, the one receding from the compartment). In this way
the second panel not only can support the first panel, but the residual opening of
the compartment is further closed thereby restricting the entry of foreign objects.
[0011] According to a preferred embodiment, the mechanism comprises a rigid arm for coupling
the platform to the second panel. By means of the rigid arm one can thus easily transfer
the motion of the platform to the second panel to change the inclination thereof.
[0012] According to a preferred embodiment, the rigid arm is mounted (e.g. hinged) in a
guided manner and slidingly on the second panel and/or on the platform, or the rigid
arm is connected to the second panel and/or to the platform not at a fixed point but
through a movable connection (e.g. hinging) point. The advantage is that a shorter,
less bulky, arm can be used and/or to create more easily synchronized movements between
the second panel and the platform.
[0013] According to a preferred embodiment, the mechanism comprises two or more rigid arms,
movably connected (e.g. hinged or in telescopic manner) to each other, for coupling
the platform to the second panel via a kinematic chain. Each arm can have the characteristics
defined for the single arm. In particular, a first rigid arm is connected (e.g. hinged)
to a second rigid arm to form a kinematic chain or a lever mechanism or a series of
levers articulated to each other between the platform and the second panel. The advantage
is being able to design the mechanism with more degrees of freedom, e.g. to avoid
that the mechanism protrudes from the compartment and/or to program both the force
that transfers from the second platform to the second panel and the motion of the
point that applies such a force.
[0014] According to a preferred embodiment, a rigid arm
- is connected on one side to the second panel and on the other side to another arm
connected to the platform, and
- is rotatably mounted, preferably with respect to a fulcrum placed in its central part,
to rotate as a result of the force impressed upon it by the other arm.
[0015] This configuration has several advantages. It creates a very fluid movement for the
second panel, the rotatably mounted arm acts as a mechanically-advantageous lever
to move the second panel (therefore the mechanism is easy and convenient to operate),
and allows to completely hide the mechanism inside the compartment of the furniture
item.
[0016] Note that the structure of the mechanism utilizing one or more rigid arms as described
herein, with the related advantages, can be used also in furniture models wherein
the second panel lowers until is horizontal.
[0017] The invention is also directed to a method for moving a panel belonging to a furniture
item, the furniture item being made to be laid on the ground and comprising
- a parallelepiped compartment with a bottom plane;
- a platform lowerable through rotation about a horizontal axis (X) passing inside the
compartment, so that the platform can be either horizontal and parallel to the bottom
plane, to sleep on it, or vertical, concealed inside the compartment;
- a first panel integral with the platform adapted to overlap the perimeter of the compartment
to partially close the compartment when the platform is vertical;
- a second panel (26) that is placed - in use -inferiorly to the first panel and movably
connected to the bottom part of the compartment for (i) overlapping the perimeter
of the compartment and close it partially when the platform is vertical and (ii) lowering
down while the platform becomes horizontal,
wherein the method comprises the step of
coupling the platform and the second panel so that moving the platform from vertical
to horizontal causes the second panel to sweep an acute angle.
[0018] The method has the same advantages of the furniture item defined above, which item
implements the method. As variants of the method one may:
- choose the angle between 10 and 75 degrees, preferably about 45 degrees; and/or
- rigidly constrain the platform and the second panel to each other so that a displacement
of the platform always corresponds in a continuous manner, in the two displacement
directions for the closing and the opening, to a displacement of the second panel;
and/or
- tilt the second panel by an angle such that the first panel, when it is horizontal,
touches the free end of the second panel.
[0019] The advantages of the invention will be better clarified by the following description
of an exemplary embodiment thereof, illustrated in the attached drawing wherein:
fig. 1 shows a perspective view of a cabinet according to the invention;
fig. 2 shows an enlarged view of the circle C1 of fig. 1, with some components omitted
and in transparency, for greater clarity;
fig. 3 shows a side view of the cabinet of fig. 1 when the bed is raised and vertical;
fig. 4 shows a side view of the cabinet of fig. 1 when the bed is lowered and horizontal;
fig. 5 shows an enlarged view of the circle C2 of fig. 4;
fig. 6 shows a known liftable bed.
[0020] In the drawings equal reference numerals designate equal parts.
[0021] A cabinet 10 resting on a ground plane T comprises a box-shaped compartment 14 and
an associated bed 20.
[0022] The compartment 14 may be formed e.g. by a parallelepiped closet or cabinet, which
comprises two side walls 72, a bottom 96, a ceiling 74 and a back wall 76 which together
delimit the compartment 14. Inside the compartment 14 is mounted a platform, which
serves to support a person while resting, and may comprise a perimeter (e.g. rectangular)
frame 18, with a bedspring or slats in the center thereof.
[0023] The compartment 14 has as a movable front wall a movable top panel 16 internally
coupled to the platform of the bed 20, both lowerable together through a rotation
about a horizontal axis X thanks to the pivoting of an inner plate 98 fixed inside
the compartment 14. The platform is rotatably mounted about the X axis near a short
side of its, and usually has the function of supporting a mattress MT (shown in dashed
lines only in fig. 4).
[0024] Fig. 3 and fig. 4 show the two configurations of the platform, raised and lowered
respectively.
[0025] The compartment 14 is covered, when the bed 20 is vertical, by a bigger rectangular
panel, the panel 16, and a rectangular panel 26 of smaller dimensions. The platform
can in fact remain vertical and hidden inside the compartment 14 ('closed' position,
see fig. 3) or can be lowered to get out of the compartment 14 and be arranged horizontally
('open' position, see fig. 4), so that a person can sleep on it.
[0026] The panel 16 is integral with the platform or frame 18: it is fixed with respect
to the platform, and always remains parallel - and at a certain distance - with respect
to it. Therefore in the 'closed' position the panel 16 forms the main part of the
closing vertical wall of the compartment 14. In the 'open' position the panel 16 positions
itself approximately horizontal, staying under the platform.
[0027] The panel 26 is instead movable with respect to the compartment 14, in particular
is hinged on its long side to the bottom 96 or to the walls 72 about a horizontal
axis Y (located below X). In the 'closed' position the panel 26 is coplanar and adjacent
to the panel 16 forming a continuous front surface of the cabinet 10 resting on the
edges of the compartment 14 (see fig. 3). In the 'open' position the panel 26 tilts
forward with respect to the compartment 14 by rotating about the axis Y. The result
is that the panel 26 moves to allow the platform to lower without hitting the edges
of the compartment 14.
[0028] The cabinet 10 comprises a mechanism M that, when the platform is lowered, is adapted
to tilt the panel 26 away from the compartment 14. The end of the platform nearest
to the X axis is connected to an arm 40, either through direct hinging or via a bracket
30, fixed on the platform, which has a hinging point P1 with the arm 40. The arm 40
is hinged at a point P2, e.g. at an end of its, at the end of or at a second arm 50
that is mounted as a rocker-arm and is hinged to the compartment 14 at a point P3.
The arm 50 can swing about an axis Z, which nearly passes through its center. The
arm 50 is hinged, at its end opposite to point P2, to a slider 56, e.g. a wheel, about
an horizontal axis W at a point P4. The slider 56 can translate linearly (direction
F) back and forth on a linear guide 58 coupled to the inner surface of the panel 26.
The slider 56 and/or the guide 58 is optional, since the end of or the arm 50 may
couple directly in a sliding manner with the guide 58, e.g. through a shaping of the
arm 50 complementary to a groove obtained in the panel 26. The swing of the arm 50
entails the swing of the panel 26 by an angle β, wherein the amplitude of the angle
β is that between the vertical and the half-line lying in the plane of the panel 50.
For example. 30 ° < β <60 °, or β = 45 °.
[0029] The axes X, Z, Y and W are preferably parallel to each other.
OPERATION
[0030] When the platform is raised (fig. 3) the arm 40 is pushed downward by the platform.
The point P2 is maximally down (maximally close to the bottom wall 96) while the point
P4 is maximally up (maximally away from the bottom 96). Therefore the slider 56 is
at the end of the stroke in the guide 58, at the upper end, and the panel 26 is held
vertical.
[0031] When the platform is lowered and set horizontal (fig. 4) it raises the arm 40, which
pulls the point P2 up. The arm 50 rotates about the axis Z and the point P4 lowers
correspondingly, pushing the slider 56 along the guide 58 towards the axis Y. Thus,
the panel 26 is pushed toward the outside of the compartment 14 and tilts by the acute
angle β (fig. 4). It can be seen that the benefits of the cabinet 10 are e.g. that
- the panel 26 tilts as it is enough for the movement of the platform, thereby limiting
the dust and dirt which enters the compartment 14;
- the axis X and the axis Y, unlike in fig. 6, may have any distance, being sufficient
to adapt the length of the organs of motion transmission, in the example the arms
40, 50, between the platform and the slider 56;
- one can do without the drawer 106, unlike FIG. 6;
- one can adjust the final inclination of the panel 26 by sizing the mechanism M, e.g.
to exploit the panel 26 as a support for the panel 16 (point R in fig. 5). It is sufficient
for example to design the lengths of the arms 40, 50;
- there is synchronous motion between the platform 18 and the panel 26, so any danger
of crushing objects in front the panel 26 is avoided;
- the panel 26 always assumes the same inclined position, in repeatable way;
- the mechanism M matches precisely and in continuous manner a rotation angle of the
platform 18 with an angle of rotation of the panel 26.
[0032] The panel 26 can be moved even with only one arm 99 (see dotted line in fig. 5) connected
to the platform at a suitable point, but in this case the arm would protrude from
the compartment and for aesthetic or security reasons it is preferred to avoid it.
[0033] The platform can be assisted by a gas spring 80 (see. fig. 2 and 4) placed e.g. between
the frame 18 and the plate 98.
1. Furniture item (10) to be laid on ground (T), comprising
- a parallelepiped compartment (14) with a bottom plane (96);
- a platform (18) which can be lowered through rotation about a horizontal axis (X)
passing inside the compartment, so that the platform can be either horizontal and
parallel to the bottom plane, to sleep thereon, or vertical, concealed inside the
compartment;
- a first panel (16) integral with the platform and adapted to overlap the perimeter
of the compartment to partially close the compartment when the platform is vertical;
- a second panel (26) that - in use - is placed inferiorly to the first panel and
movably connected to the lower part (96) of the compartment for (i) overlapping the
perimeter of the compartment and close it partially when the platform is vertical
and (ii) lowering as the platform becomes horizontal;
- a mechanism (M) for coupling the platform and the second panel, so that the displacement
of the platform from vertical to horizontal causes the second panel to sweep an acute
angle (β).
2. Furniture item according to claim 1, wherein the angle is selected between 10° and
75°, preferably about 45°.
3. Furniture item according to claim 1 or 2, wherein the mechanism is structured to rigidly
constraint the platform and the second panel to each other so that a displacement
of the platform always corresponds in a continuous way, in the two displacement directions
of closing and opening, to a displacement of the second panel.
4. Furniture item according to any one of the preceding claims, wherein the mechanism
is adapted to tilt the second panel by an angle such that the first panel, when it
is horizontal, touches the free end of the second panel.
5. Furniture item according to any one of the preceding claims, wherein the mechanism
comprises a rigid arm (40; 99) for coupling the platform to the second panel.
6. Furniture item according to claim 5, wherein the rigid arm is mounted slidably and
in guided manner on the second panel and/or on the platform.
7. Furniture item according to claim 5 or 6, wherein the mechanism comprises two or more
rigid arms (40, 50), connected to each other to movably couple the platform to the
second panel via a kinematic chain.
8. Furniture item according to claim 7, wherein a rigid arm (50)
- is connected on one side (P4) to the second panel and on the other side (P2) to
another arm (40) connected to the platform, and
- is rotatably mounted (Z) to rotate as a result of the force imparted upon it by
the other arm.
9. Furniture item according to claim 7 or 8, wherein the rigid arms are hinged to each
other at one end and the rotatably mounted arm (50) is hinged to the compartment.
10. Furniture item according to any one of the preceding claims, wherein the second panel
is hinged to a bottom plane of the furniture item.
11. Method for moving a panel (26) belonging to a furniture item (10), the item being
made to be laid on ground and comprising
- a parallelepiped compartment (14) with a bottom plane (96);
- a platform lowerable through rotation about a horizontal axis (X) passing inside
the compartment, so that the platform can be either horizontal and parallel to the
bottom plane, to sleep on it, or vertical, concealed inside the compartment;
- a first panel (16) integral with the platform adapted to overlap the perimeter of
the compartment to partially close the compartment when the platform is vertical;
- a second panel (26) that is placed - in use -inferiorly to the first panel and movably
connected to the bottom part of the compartment for (i) overlapping the perimeter
of the compartment and close it partially when the platform is vertical and (ii) lowering
down while the platform becomes horizontal,
wherein the method comprises the step of
coupling the platform and the second panel so that moving the platform from vertical
to horizontal causes the second panel to sweep an acute angle (β).
12. Method according to claim 11. wherein said angle is between 10° and 75°, preferably
about 45°.
13. Method according to claim 11 or 12. wherein the platform and the second panel are
rigidly costrained to each other so that a displacement of the platform always corresponds
in continuous manner, in the two displacement directions for the closing and the opening,
to a displacement of the second panel.
14. Method according to claim 11 or 12 or 13. wherein the second panel is tilted by such
an angle that the first panel, when it is horizontal, touches the free end of the
second panel.