FI115603B - Sofa bed - Google Patents

Description

115603

SOFA SOFA - BÄDDSOFFA

The invention relates to a sofa bed as set forth in the preamble of the independent claim below. In particular, the invention relates to a sofa bed which can be provided with either a single bed or a double bed or up to three full beds.

BACKGROUND OF THE INVENTION

Many sofa beds are known in the art. For example, Swedish Patent Publication No. 10 SE 98998 discloses a sofa bed which can be turned into a double bed by turning the seat and backrest. Several patents also disclose the formation of an overnight bed from the same sofa-like device. These include e.g. FR 2553651, GB 1410440, DE 189525, US 3858254, US 4922561, GB 2372695, US 3736601, DE 881251 and GB 1028036. However, no known publication discloses a simple and secure bed sofa which can be converted to a single or a double bed if desired. In particular, there is no known simple and reliable sofa bed, which in the double bed position would not require additional legs or similar arrangements to support the wide double bed.

BRIEF DESCRIPTION OF THE INVENTION

It is an object of the present invention to reduce or even eliminate the above-mentioned problems in the prior art.

LL It is a particular object of the present invention to provide a simple and safe sofa bed which can be provided with either a single bed or a double bed. It is also an object of the invention to provide a sofa bed which, even in a double bed, does not require additional support periods or similar mechanisms to support the sofa; wide structure. It is also an object to provide a new sofa bed mechanism which enables the sofa bed v '· 30 according to the invention to function.

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Among other things, in order to accomplish the above purposes, the sofa bed according to the invention is characterized in what is disclosed in the characterizing part of the appended independent claim.

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A typical sofa bed according to the invention comprises a frame, for example sofa ends and transverse structures connecting them. The sofa seat portion and the backrest portion are fastened to the frame mainly by means of the horizontal pivoting axes relative to the frame. The seat and backrest are individually movable. Both the seating part 10 and the backrest have two different sides. Usually half are different, at least in terms of padding. The different sides of the seat and backrest are visible or hidden, depending on whether the sofa bed is for sofa, single or double use.

15 Typically, during use of a sofa, there is a seating side upward from the seat portion that serves as the seat surface of the sofa. In the case of beds, there is an upside-down bed on the seating area, which may have a sleeper mattress.

Typically, during the use of the sofa and the use of a single bed, the backrest is substantially vertical. In this case, the front of the backrest, i.e., mainly towards the front edge of the sofa, is the backrest of the backrest which acts as the backrest surface. Sofa-. During use, the back of the backrest has a backside of the backrest that can be • *. ·. have a sleeping mattress arranged. So the front of the sofa bed is the side, ''; which is usually used to sit on the couch. The backside of the sofa bed is the side where the sofa back is normally.

! ' In a typical sofa bed according to the invention, the pivoting axis of the seating part is too f kut erable with respect to the frame by its support arm. The control arm is in turn. with its mainly horizontal pivot axis. Said pivot axis of the support arm '30 is supported on the body, typically near the front edge of the body. Often, the pivot axis of the support arm 115153 is supported on the sofa bed frame below the sofa-seated seat, perhaps even near the floor level.

A typical seat pivot axis support arm according to the invention and thus also the 5 seat pivot axis are movable between at least two stable positions. These two positions are one-year position and two-position position. Typically, as the pivot axis of the pivot axis and the pivot axis of the seating portion move, the seating portion also moves.

10 In a typical single-bed position, the pivot axis of the seating unit is on the back of the pivot axis of its support arm. In the double-bed position, the pivot axis of the seating portion is pivoted forward relative to the one-bed position so that the pivot axis is in front of the pivot axis of its support arm. In this case, the seating part has also moved forward with respect to the one-year-old position, so that there is free space on the backside. Now, the backrest portion 15 is pivotable to its original position on the seat portion in a substantially horizontal position. When the backrest is swiveled around its own pivot axis so that its bed face upwards, the double bed is ready.

Typically, in order to receive the seating portion and the stresses exerted on it, the pivot axis of the seating pivot axis is lined up in a couple of 20 beds to rest on the front part of the sofa bed frame. This support is typically followed by the support arm. above the pivot axis. Of course, the body, the support arm and other stressed parts must: v be of sufficient strength to withstand the stress exerted on them by the seat cushion.

25 ',,; The waste treatment according to the invention provides a very simple sofa bed, which can be provided with a single bed or a double bed as needed. With the support arm solution of the invention, even in a double bed position, support legs or other special support solutions may not be needed to support the exterior of the sofa bed frame. 30 sides even with full beds. The invention provides a fast-acting flow 4115603 sofa bed mechanism. In the sofa bed according to the invention, the beds of both the seating area and the backrest are concealed in the use of the sofa. Thus, the use of the sofa bed according to the invention can be further accelerated by fastening all the bedding to the beds. This attachment can be made, for example, 5-vuodepuo signals over towed by a flexible elastic straps or the entire side of the bed covering the mesh.

In one of the sofa beds of the invention, the pivot axis of the seating portion is secured to the seating portion such that, in sofa operation, the pivot axis is closer to the front edge than the rear edge of the seating portion. Typically, in sofa use, part of the seat is under the backrest, whereby the entire depth of the seat is not available for sitting. When such a seat part according to the invention is turned from sofa to bed use, the seat part moves a certain distance away from the backrest. This mimic achieves that in a single-bed operation, the bed that can be tracked from the side of the seat can easily be made wider than the seat from the couch.

In a sofa bed according to the invention, a first '; * '20 track, such as a rail or slot. The track is typically tracked, for example, on a sofa bed | t. the sides of the end facing the beds, for example the armrest panel. The track is typically arranged to start at the leading edge of the frame. This means that, by rotating portions of the sofa bed, particularly the seat, through the starting point of this web, suitable members for that web can be guided to or from the web 25. Typically, the rotation axis of the seat portion or its support arm is then marked with *, t; At least one such member, such as a pin, suitable for, supported on, and tracked in the web, for guiding and supporting the pivot axis of the seat portion and its support arm during movement and pivoting of the seat portion. SUCH; With the help of rails, slats, and the like, the sofa bed parts and the turning are controlled 30 and exactly as the sofa designer wants.

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In a sofa bed according to the invention, another track, such as a rail or slot, is imitated in the frame. The track is typically traced to the sides of the bed, for example, towards the end of the sofa bed, e.g., the armrest panel. Another track 5 is arranged to start at the leading edge of the frame and preferably tracked throughout its entire path below the first track. Typically, the pivot axis of the seating member or its support arm is provided with at least one member, such as a pin, suitable for, supported by, and extending therethrough. The second track adds to the ease of use and reliability of the device.

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In a sofa bed according to the invention, the front edge of the seating position in the sofa seat has a member, such as a pin, which in the sofa seat is supported on the first track and in a single sofa bed the second seat. These two tracks allow the seating movement to be controlled exactly as desired. In addition, by the design of the tracks 15, for example with locking recesses to which the front edge member of the seating part just fits, the seating part is easily arranged to be releasably locked.

The pivot arm of the seat pivot axis of the invention is typically substantially L-shaped. Thereby, the first leg of the L-speaker has a pivot axis of the support arm 20 and the second leg has a pivot axis of the seating portion. The upward-facing edge of the first branch of L in couch operation and single-bed operation, and. Forward-facing couch and single-bed use: forward edge: typically straight and at right angles to each other.

In a typical sofa bed according to the invention '; a seat member such as a coil spring, a gas spring or a hydraulic cylinder. A spring member -,: which facilitates the movement of some parts to facilitate the positioning of the sofa: 30. On the other hand, the spring means can slow down some of the movement of the parts 6 115603 in order to avoid unnecessary bumps and movements. A preferred spring member is disposed between the body and the middle portion of the pivot axis of the pivot axis of the mainly L-shaped seat portion. In this case the handling of the support arm is particularly smooth.

The sofa bed according to the invention may further comprise an upper bed, which is pivotable by its mainly horizontal pivot axis, mainly by a vertical closed position and by a mainly horizontal upper bed position. This provides an easy and secure extra bed in one arrangement. If the upper bed and its pivot axis are supported on the same frame as the rest of the sofa beds, a sofa-bed 10 can be provided, which can provide up to three beds without special additional support legs or other support structures.

Further advantages of the invention as well as preferred embodiments of the invention and their advantages are shown in the accompanying figures and their description.

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BRIEF DESCRIPTION OF THE FIGURES

The invention will now be described in more detail with reference to the accompanying schematic drawing in which

Fig. 1 is a side elevational and partially sectional view of a sofa bed according to the invention for sofa use, | Figure 2 shows the sofa bed of Figure 1 in a single bed position,. -: Figure 3 shows the sofa bed of Figure 1 in a double bed position: ·; Figure 4 shows a sofa bed of figure 1 in a 3-bed position, Figure 5 shows a front view of figure 1, and Figure 6 shows a front view of figure 4.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

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Figures 1-6 show a preferred sofa bed 1 according to the invention. In figures 1-4,;, the sofa bed 1 is shown from the side so that the structures of only one end are visible. 30 weather At the other end of the sofa bed 1 of the figures, the mechanisms and structures are at least substantially the same. The sofa bed 1 comprises a frame, for example, the sofa ends 2 and the transverse structures connecting them. The sofa seat portion 5 and the back portion 6 are attached to the frame 2, pivotally movable with respect to the frame 2, mainly on the horizontal pivot axes 3 and 4. Both the seat part 5 and the back support part 6 are coated on both sides. Both parts comprise two different sides of their upholstery, which are visible or hidden depending on whether the sofa bed 1 is in the sofa bed of Figure 1, the single bed of Figure 2 or the double bed of Figure 3 and 4.

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1, the seat portion 5 has an upwardly facing seat 7 which serves as the seat surface of the sofa. In the single-bed position and the double-bed position, the seat part 5 has an upward facing bed 8, which is followed by a sleeping mattress and preferably also bedding not shown in the figures. Bed linen can be attached to bed side 8, for example, with ribbons or nets.

During the use of the sofa shown in Figure 1 and the single bed shown in Figure 2, the backrest section 6 is substantially vertical. Thus, the front side of the backrest 6, i.e. mainly towards the front edge 9 of the sofa, has a backrest 10 which acts as a backrest surface 10 of the backrest.

In the sofa bed 1 of the figures, the pivot axis 3 of the seating part is movable with respect to the frame 2 on its support arm 12. The control arm 12, in turn, is pivotable on its own; mainly on its horizontal pivot axis 13. Said support arm pivot shaft 13 'is supported on frame 2, typically near the front edge of the frame 9. The figure pivot arm pivot shaft 13 is supported on sofa bed frame 2 below the sofa-operated seat portion 5 shown in Fig. 1, near the floor.

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In the sofa bed 1 of the figures, the pivot axis 3 of the seating part is fixed to the seating part 5 such that in the sofa drive shown in Fig. 1 the pivot axis 3 is closer to the front edge 14a of the seating part than to the rear edge 14b of the seating part. Thus, when turning the seat portion 5 from the sofa drive of Figure 1 to the bed seat of Figure 2, the seat portion 5 moves forward 5 even though its pivot axis 3 remains in the same position. In couch operation, part of the seat part 5 is beneath the backrest part 6, whereby the entire depth of the seat part 5 is not available for sitting.

On the sides of the sofa-bed end 2 towards the beds is shown a first 10 track or slot 17. The slot 17 starts at the front edge 9 of the frame, at position 18. A pin 19 suitable for said slot 17 is followed at the end of the rotation axis 3 of the seat. , in the other figures, seat reference number 3 indicates the position of pin 19. At the end of the sofa bed 2, another groove 20 is provided. Another groove 20 begins at the front edge 15 of the frame 9 at position 21 and runs its entire length below the first groove 17. When rotating portions of the sofa bed 1, in particular the seat portion 5, through the recesses 18 and 21 of the slot, suitable members may be guided to the recess 17 or may be diverted from the recesses 17 and 20 through the recesses 18 and 21. the sofa drive in the position at the top of the front edge 14a of the seat part 5 is'. 20 tracked pin 22, similar to pin 19, fits both grooves 17 and 20.

A: The design of the slots is of great importance for the function of the sofa bed 1 mechanism.

For example, a recess 23 is formed at the bottom edge of the most visible slot 17 in Figure 2, near the starting point of the slot 18. In the sofa operation of Figure 1, the pin 22 is inserted into the recess 23 and the seat portion 5 is thereby locked. In sofa operation, the pin 19, the rollers 15 and 16 of the backrest portion 6 also hold the seat portion 5 with its mounts.

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When moving from the position of Figure 1 to the position of Figure 2, the pin 22 is first removed from the recess 23 by a small ny-30 turn. The seat portion 5 is now moved away from the backrest portion 6 9 115603. At the same time, the pin 22 leaves the slot 17. The seat part 5 is supported by coils 15 and 16 rotatably attached to the frame 2 in sofa operation, which facilitate pulling the seat part 5 under the backrest part 6. When moving the seat part 5, the support arm 12 pivots on its pivot axis 13 until a point is reached where the seat part 5 can pivot 5 on its pivot axis 3. The pin 19 has moved in slot 17 towards the front edge 9 of the frame, but is still in slot 17. Now the seat portion is moved backward. The pin 22 is guided through the opening 21 to the second slot 20. The pin 22 is pushed all the way to the bottom of the slot 20. The seat pins 5 are automatically guided by pins and slots to the correct single bed position shown in Figure 2.

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In the situation of Fig. 2, the pin 22 at the upward end of the slot 20, the pin 19 in the slot 17, and the seat portion resting against the upper edge 24 of the body front shown in Fig.

The seat pivot axis support arm 12 and thus also the seat pivot axis 3 are movable between at least two stable positions. These two positions are the single-bed position shown in Figure 2 and the double-bed position shown in Figures 3 and 4. Typically, when the support arm 12 and the pivot axis 3 are moved, the seat part 5 also moves. As stated above and as shown in Figures 1 and 2, in the one-year position 20, the support arm 12 and the pivot axis 3 are in the same position as when the sofa was in use.

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In the single-bed position, the pivot axis 3 of the seat portion is located at the rear of the pivot axis 13 of its support arm. When moving towards the double bed position, the support arm 12 is rotated by its pivot axis 13. The seat part 5 also moves forward. At some point in the movement, the pins 19 and 22 exit the slots 17 and 20. Finally, the pivot axis 3 is pivoted forward relative to the one-year position so that the pivot axis 3 is in front of its pivot axis 13. In the double-bed position, the seating portion 5 has moved forward with respect to the single-bed position, so that there is space on its backside. In the example of the figures, the seat part 5 has moved about its own. 30 measures. Now, the backrest section 6 is pivotable to the original seat 115603 of the seat section 5 in a substantially horizontal position. When the backrest section 6 is rotated about its own pivot axis 4 so that its bed side 11 faces upwards, the double bed is complete.

The motion of the pivot pivot shaft support arm 12 stops in the double bed position when it encounters the front part 25 of the sofa bed 1 frame shown in Figure 2. This support is typically tracked above the pivot arm pivot 13. Of course, the body 2, the support arm 12 and other stressed parts must be sufficiently robust to withstand the stress exerted on them by the seat 10 formed by the seat part 5.

The pivot arm 12 of the pivoting seat of the patterns typically has a substantially L-shaped shape. The first arm 26 of the support arm 12 has a pivot axis 13 of the support arm and the end 27 of the second arm 27 has a pivot axis 3 of the seating portion. and at substantially right angles to each other.

20 The center of the seat pivot arm 12 and the end 2 of the sofa bed end t '. a helical spring 30 is provided to assist and brake the pivoting of the seat portion 5; movements. For the same reason, a gas spring 31 is disposed between the backrest portion 6 and the end of the sofa bed 2. The gas spring 31 is attached to the backrest portion 6 via a shorter support arm attached to the pivot axis 4 of the backrest portion 6.

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The figure also shows the upper bed 32. The upper bed is available completely separate from the lower beds. The upper bed 32 has a substantially horizontal pivot axis 33 on which it can be pivoted in a substantially vertical closed position shown in Fig. 3 and; - based on the substantially horizontal overhead position shown in Figure 4. Figures 5 and 6: 30 show how the upper bed 32 is connected by vertical frame beams 34 to the lower bed 11 115603 ends 2. The beams 34 are schematically shown in Figures 1-4 by line 34 only. The inventive sofa bed 1 5 does not necessarily require an upper bed 32 to function. The upper bed 32 may be separate from the lower sofa bed and supported e.g. Fig. 5 shows a closed overhead opening handle 35. Fig. 6 shows a support bar 36 for the edge of an opened overhead 32.

The invention is particularly well suited for use in ships, hotel rooms and the like, where fast and space-saving solutions are particularly valuable.

It is conceivable that the sofa bed mechanism of the invention, which allows free choice between the following positions: sofa, sofa and bunk bed, single bunk bed, double bed, bunk bed, double bed and single bunk bed, can also be implemented with some .

Preferred embodiments of the invention are shown in the figures. Figures 20 do not specifically disclose matters of secondary importance, known per se, or obvious to one skilled in the art, such as any support structures required by the invention. It will be apparent to one skilled in the art that the invention is not limited to the examples set forth above, but that the invention may vary within the scope of the following claims. The dependent claims disclose some possible embodiments of the invention and are not to be construed as limiting the scope of the invention as such.

Claims (10)

115603 A sofa bed (1) comprising a frame (2) and separately movable sofa seat (5) and a backrest (6) pivotally mounted therewith, which are pivotable mainly by their horizontal pivot axes (3, 4) and comprise two - the seat part (5) facing the sofa upwards has a seat side (7) serving as the seat surface of the sofa (1) and the bed side facing upwards the bed side (8), - the seat back part (6) facing the front side of the sofa 9), has a backrest side (10) serving as a backrest surface of the sofa (1) and a sofa bed (11) on the backside, characterized in that: - the pivot axis (3) of the seat part is movable with respect to the frame (2); 15. The pivoting arm (12) is pivotable by its mainly horizontal pivot axis (13), - the pivoting pivot axis (13) is supported on the frame (2) by means of a seat for couch operation. below the pivot axis (3) of the a-part, wherein the pivot arm (12) of the pivot pivot axis and hence also the pivot actuator of the seating pivot (20) are movable between at least two supporting positions, namely. - a single-bed position with the pivot axis (3) of the seat pivoting on the pivot axis of its support arm-: · ·: - • ', ·' - the pivot position with the pivot axis of the pivoting seat (3) pivoting on its support arm- forward, with the seat portion (5) moved forward with respect to the single-bed position 25 such that the backrest portion (6) is pivotable to its original, seat position (5) substantially horizontally to provide a double bed, and wherein the seat arm pivot arm - ,,,;. to the front part (25) of the sofa body above the pivot axis (13) of the support arm. to receive the part (5) and the weight applied thereto. 115603 Sofa bed (1) according to Claim 1, characterized in that the pivoting pivot axis (3) is attached to the seating part (5) such that in the sofa operation the pivoting axis (3) is closer to the front edge (14a) of the seating part than the rear edge (14b). - When lifting the seat (5) from the sofa to the bed, the seat (5) moves forward even though the pivot axis (12) of the seat remains in the same position. Sofa bed according to Claim 1 or 2, characterized in that a first track (17) is provided on the frame (2), such as a rail or slot, which track (17) 10 is tracked starting from the front edge (9) of the frame and at least one member (19) supported on said track (17) and guided therewith to guide and support the pivot axis (3) and its support arm (12) for guiding and supporting movement and rotation of the seat part (5); during. 15 Sofa bed according to Claim 3, characterized in that a second track (20) is provided on the frame (2), such as a rail or slot, which second track (20) is arranged to start (21) from the front edge (9) of the frame. below the first track (17). 20th Sofa bed according to Claim 4, characterized in that the front edge (14a) of the seat part (5) in a sofa-like position has a member (22) supported on the first track (17) in the sofa drive and in the second track (20) in single-seat operation. 25 A sofa bed according to any one of the preceding claims, characterized in that the pivot arm (12) of the pivot axis of the seating part is substantially in the shape of an L-rocker, the end of the first leg (26) of the L-rocker. the drive shaft (13) and the end of the second leg (27) being the pivot axis (3) of the seat. ; 30, 115603 A sofa bed according to any one of the preceding claims, characterized in that - a spring member, such as a coil spring (30), is provided between the support arm (12) and the frame (2) of the seat pivot axis and / or - the backrest (6) and the frame (2). ), gas spring (31) or hydraulic cylinder. Sofa bed according to Claim 7, characterized in that the spring element (30) is disposed between the frame (2) and the middle part of the pivot axis (12) of the pivot axis of the seat, which is mainly L-shaped. 10 A sofa bed according to any one of the preceding claims, characterized in that it further comprises an upper bed (32) which is pivotable by its substantially horizontal pivot axis (33) between a substantially vertical closed position and a substantially horizontal upper bed position. 15 Sofa bed according to Claim 9, characterized in that the upper bed (32) and its pivot axis (33) are supported on the same frame (2) as the other sofa bed. I »115603