JP6684010B1 - Easy to move sleeper sofa - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sleeper sofa which can be quickly and easily and safely moved and arranged by one person without any force when the sofa is a sofa which can be converted into a bed. SOLUTION: A sleeper sofa in which a caster 13 is provided at a lower end of a sofa body 10, and a movable portion 20 that is pulled out from the sofa body 10 and is freely stored is formed into a bed shape, and when it is stored, a sofa shape is formed. The movable part 20 is composed of a cushion support base 21 and a side plate 22, and when the movable part 20 is stored, the cushion support base 21 is sandwiched between a push-down member 34 and a riding member 32 provided in the storage part 30, A sleeper sofa in which the lower end 23 of the side plate 22 does not hinder the movement by the casters 13 by being lifted from the floor surface FL. [Selection diagram]

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sleeper sofa that is easy to move, and more particularly to a sleeper sofa to which casters are attached.

  The sleeper sofa, which is a sofa that can be converted into a bed, is also called a sofa bed, and various types have already been commercialized and used in hospitals, workplaces, and homes. There is also a type of sleeper sofa in which the backrest is tilted down to increase the seat surface area and converted to a bed, but there is a limit to the size of the backrest that can be unfolded. The type that spreads out is also used. For example, in Patent Document 1, the seat surface of the sofa is divided into three parts, which are connected by a hinge or the like to form a seat surface seat, a backrest seat, and a backrest back seat, and each seat is folded to form a sofa and a seat surface. There has been proposed a sofa that can be used as a bed by pulling out a sheet and stretching each sheet in a continuous plane.

  Then, in Patent Document 2, a left and right side forming body that is movable in the left-right direction is installed in a center forming body that is a sofa body, and the left and right side forming body is moved inward to the center. By storing it inside the side forming body, or moving it outwards to make it in an extended state, it can be used for three people to two people, or conversely for two people to three people. There has been proposed a sleeper sofa that can be arbitrarily converted or a sofa and a bed can be mutually converted. Further, Patent Document 3 includes a hollow outer case having a fixed cushion provided on an upper part thereof, and an inner case that can be relatively inserted into and removed from the hollow portion of the case, and the inner case can be pulled out. There is proposed a sofa bed (sleeper sofa) that can be used as a bed by disposing a movable cushion above it at a position, and can be used as a sofa by removing the movable cushion at an insertion position.

  As described above, the sleeper sofa (sofa bed), which is pulled out from the sofa body to the left and right sides or to one side, expands the seat surface seat of the sofa body and converts it into a bed, is placed in the living room at home. It is installed near the bed for the sick in hospitals, etc., but there is a limitation in the size of the patient's room, etc. There is a demand for a sleeper sofa that can be easily moved because it is often moved, even after the bed is converted to a sofa.

  Therefore, in the sleeper sofa described in Patent Document 3, the support portion (first support member) of the outer case, which is the sofa body, does not move on the floor, and the support portion (the first support member) of the outer case that is pulled out to form the bed surface (first The second support member) is configured to be movable on the floor (refer to claim 1 of the present document), the first support member is an adjuster, and the second support member is a caster (the book). Refer to literature claims 10 and 11). Then, when the inner case is housed in the outer case and becomes a sofa, the outer case and the inner case are both tilted so that only the second support member, which is a caster, supports the entire sleeper sofa. It is moved (see paragraph 0037 of this document, FIG. 8 etc.).

  However, although the sleeper sofa described in Patent Document 3 can be moved using casters, one of the entire sofa needs to be lifted and tilted, which requires force, and is quickly and easily and safely moved by one person for installation. Not something you can do.

Patent No. 4699549 JP-A-11-206514 JP, 2001-87081, A

  An object of the present invention is to provide a sleeper sofa that can be quickly and easily and safely moved and arranged by one person without the need of force when the sleeper sofa, which is a sofa that can be converted into a bed, is formed. That is.

In the sleeper sofa of the present invention, a caster is provided at the lower end on the base of the seat surface seat of the sofa body, a storage section is provided inside, and the storage section is provided on the side of the sofa body so as to be freely stored and movable. The portion is composed of a cushion support base and a side plate provided at the front end of the support base.When the drawer is pulled out, the lower end of the side plate is grounded on the floor surface to hold the cushion support base horizontally, and the cushion support base has an upper surface with a cushion. In the sleeper sofa which is arranged, in the form of a bed together with the seat sheet, and in the form of a sofa when stored,
A sliding member is provided on the lower surface of the cushion support base, a riding member having a sloped front end is provided on the inner bottom surface of the storage unit, and a push-down member having a sloped front end is provided on the rear surface of the ceiling of the storage unit. When the cushion support base is pushed into the storage part, the sliding member slides on the riding member, and then the rear end portion of the cushion support base is pushed down by the pushing down member, so that the space between the riding member and the pushing down member is lowered. And the lower end of the side plate is lifted from the floor surface to accommodate the movable part.

  In order to allow the movable part to be pulled out and stored in the storage part, the cushion support base is not tightly sandwiched between the push-down member and the riding member, but the side plate can be vertically swung during storage. It is sandwiched to some extent and has some rattling, which is preferable for smooth drawer storage work. In this way, the side plate provided at the tip of the housed movable part can be swung up and down with respect to the gantry, and one of the magnet fixture pairs corresponds to the outer surface of the gantry near the housing port and the other side corresponds to the gantry. On the inner surface of the side plate at the position, the pair connecting surface is provided so as to be parallel to the outer surface and the inner surface. It is preferable that the side plates are sometimes swung in the vertical direction so that the pair coupling surfaces slide and shift, the pair of magnet fixtures are disengaged, and the side plates are unfixed.

  The above-mentioned magnet fixture pair is one that couples the pair coupling surfaces of two pair members respectively provided at corresponding positions of the member to be fixed by magnetic force, and one of them is a magnet and the other is often an iron piece. The N and S poles of the magnet may be combined. The magnet fixture pair is provided such that the pair coupling surface is parallel to the fixing surface of each member to be fixed. Such a pair of magnet fixtures attracts each other when the pair coupling surfaces are brought close to each other and is easily coupled to fix the target member. Then, a strong force is required to release the fixing by pulling them apart in the direction orthogonal to the pair coupling surface, but a large force is not required to slide and slide in the direction parallel to the coupling surface to release the coupling. Therefore, as described above, by providing one of the magnet fixture pair on the outer surface in the vicinity of the storage opening of the gantry and the other on the inner surface of the side plate at a corresponding position, the side plate and the gantry frame are fixed during storage of the expansion part, By swinging the side plates in the vertical direction when the expansion part is pulled out, the coupling surfaces of the pair slide and shift, and the coupling is released, and the side plates and the gantry frame can be unlocked.

  Further, it is preferable that the movable portion is provided not only on one side of the sofa main body but also on both sides thereof so as to be capable of being drawn out and stored therein, and that the caster is a caster with a lock.

  The above-mentioned sliding member is an elongated plate-like member made of a synthetic resin having a small friction coefficient and excellent wear resistance at least on its sliding surface, and is slidable on the upper surface of the riding member. Even if the entire plate-shaped member is made of synthetic resin with excellent friction and wear characteristics, or if it is combined with a support material such as metal so that only the lower surface, which is the sliding surface, becomes the resin surface. Good.

  The sleeper sofa of the present invention has a structure in which the lower end portion of the side plate of the movable portion floats above the floor surface when the movable portion for functioning as a bed is stored in the storage portion inside the frame of the seat sheet. When the sofa is stored and in the form of a sofa, the movement of the sofa by the casters is not hindered, so that the sofa can be quickly and easily and safely moved and arranged by one person without using force.

  Furthermore, when fixing the pedestal of the sofa body and the side plate of the movable part using a pair of magnet fixing tools, the pair coupling surfaces attract each other easily as described above during storage in the storage part of the expansion part. It can be combined and firmly fixed, so that when the expansion part is stored and moved by the caster in the form of a sofa, the movable part can be safely moved without popping out. After the moving and setting, the side plate can be finely moved in the vertical direction to easily remove the connection, release the fixing, and pull out the movable portion to form a bed without requiring a force.

  Also, by adopting a type in which the movable part is pulled out to both sides of the sofa, the range of choices for the conversion space to the bed is increased, and the degree of freedom of the installation location of the sofa can be increased.

  Further, by providing the casters with a lock, regardless of whether the form is a sofa or a bed, the casters can be locked and stably installed after the completion of the movement.

The operation operation explanatory view of the sleeper sofa that pulls out and stores the movable part from the sofa body. FIG. 4 is a plan view illustrating the arrangement of a riding member, a pushing down member, and the like in the storage section. Side explanatory drawing of arrangement of riding member, pushing down member, etc. in storage section The external perspective view of the sleeper sofa in the form of a bed.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  In FIG. 1, the sleeper sofa is changed from the sofa-shaped (a) to the bed-shaped (c), so that the movable portion 20 is pulled out from the sofa body 10 or, conversely, the bed-shaped to the sofa-shaped is converted. It is explanatory drawing of the operation which accommodates the movable part 20 in a sofa main body, and (b) has shown the intermediate | middle operation stage of the drawer operation of the movable part 20, or a storage operation.

  (A) is a front explanatory view of the sleeper sofa in the form of a sofa, and the sofa body 10 includes a seat sheet 11, a pedestal 12 for supporting the seat, and a backrest sheet 14 on which a back cushion 15 is leaned. (See (c)), an armrest seat 16 on which an in-elbow cushion 17 is leaned, a caster 13 is provided at the lower end of the gantry 12, and a storage section 30 is provided inside the gantry. The movable portion 20 is stored in the storage portion 30. The movable part 20 is composed of a cushion support base 21 and a side plate 22 provided at the front end of the support base, and the cushion support base 21 passes through the storage port 36 and the riding member 32 provided on the inner surface 31 of the bottom of the storage part 30 and the ceiling portion. The side plate 22 is sandwiched between a push-down member 34 provided on the inner surface 33 and housed, and the side plate 22 is closely attached to the side surface 18 of the seat 11 and the pedestal 12, and is fixed by a magnet fixing tool pair 40. In this stored state, the side plate 22 is lifted by the cushion support base 21, and the lower end 23 thereof is lifted from the floor surface FL. Therefore, the movement of the sofa by the casters 13 is not hindered.

  (C) is a front explanatory view in which the movable part 20 is pulled out to form a bed, the cushion support base 21 is pulled out from the storage part 30 via the storage port 36, and the lower end 23 of the side plate 22 is placed on the floor surface. The cushion support base 21 is held horizontally by being grounded to the FL, and the backrest cushion 15 that has been leaned against the backrest seat 14 is disposed on the upper surface of the cushion support base 21, and together with the seat surface seat 11 the bed surface. Is formed. In this case, the elbow cushion 17 is used as a pillow.

  Further, it is preferable that the casters 13 attached to the pedestal 12 are provided with a lock. As described above, even in the sofa form, the lock pedal 19 is operated after the movement to fix the caster 13 in the place after the movement, or the bed shown in (b). It is preferable to lock the casters even during the conversion operation to enable safe operation. Also, when the bed is used as shown in (c), it is preferable to similarly lock and fix the bed.

  In (b), the movable part 20 is pulled out from the sofa form shown in (a) and converted into the bed form shown in (c), or conversely, the movable part 20 is stored in the bed form shown in (c). , (A) shows an intermediate operation stage of the operation of forming a sofa. In the pulling-out operation, first, in order to release the fixation of the pedestal 12 and the side plate 22 by the magnet fixing tool pair 40 in (a), the side plate 22 is swung in the vertical direction so that the mutual coupling surfaces of the magnet fixing tool pair 40 are released. Slide and disengage to release the fixation, grasp the upper end 27 of the side plate 22, and pull out the cushion support base 21 that is housed inside the storage unit 30 by being sandwiched between the riding member 32 and the pushing down member 34. Then, the movable portion 20 is pulled out to have the shape shown in FIG. Further, the upper end of the side plate 22 is formed into a hook shape as shown in the figure so that it can be easily grasped.

  In the above-mentioned pulling-out operation, since the side plate 22 can be swung in the vertical direction, it is desirable that the cushion support base 21 be sandwiched between the riding member 32 and the pushing-down member 34 loosely. The cushion support base 21 can be easily pulled out, and since the slide member 25 is provided on the lower surface of the cushion support base 21, it is easy to slide on the upper surface of the riding member 32. Can be withdrawn.

  On the contrary, in the operation of accommodating the movable part 20 from the bed form shown in (c) to the sofa form of (a), the backrest cushion 15 is removed from the cushion support base 21, and the upper end of the side plate 22 is grasped to support the cushion. The operation stage in which the base 21 is pushed into the storage portion 30 and the tip end portion 26 of the cushion support base 21 rides on the front end of the riding member 32 is shown in (b). The front end of the riding member 32 is an inclined surface, and the tip portion 26 can easily ride on the riding member 32.

  A sliding member 25 is provided on the lower surface of the cushion support base 21, and the slidability of this member is used to further push it in, so that the push-down member 34 provided at the rear of the ceiling inner surface 33 causes the tip to move forward. The portion 26 is pushed down, the cushion support base 21 is sandwiched between the push-down member 34 and the riding member 32, and is housed as shown in FIG. As shown in (b) and (c), a pair of magnet fixtures 40 are provided at corresponding positions on the outer surface 18 of the gantry 12 and the inner surface 24 of the side plate 22 in the vicinity of the storage opening 36. By bringing them closer to the side face 18, the respective magnet fixture pairs 40 are attracted to each other and coupled to fix the pedestal 12 and the side plate 22 to form the sofa shape shown in (a). The magnet fixture pair 40 may be a combination of magnets and iron pieces or a combination of magnets as described above.

  Further, as shown in FIG. 1, the storage of the movable portion 20 in the storage portion 30 is performed by sandwiching the cushion support base 21 between the ride-on member 32 and the push-down member 34. In order to allow the side plate 22 to swing in the up-down direction without requiring force, the sandwiching between these two members is loose. Therefore, the cushion support base 21 of the movable portion 20 is wobbled inside the storage portion 12. This rattling allows the work for pulling out and storing the movable part 20, that is, the work for pulling out and storing the cushion support base 21 to be performed with a small force. However, if the rattling is too great, the work is hindered. In order to limit the amount of rattling, in the example of FIG. 1, a rattling prevention member 35 is provided at the front part of the ceiling of the storage unit, and the upper and lower swingable range of the side plate 20, that is, the amount of rattling. Is limited.

  2 and 3 are plan and side explanatory views of respective arrangements of the riding member 32, the pushing-down member 34, and the rattling prevention member 35 provided in the storage section 30. FIG. 2 shows that the riding members 32 are provided at two locations on both sides of the inner surface 31 of the bottom of the storage section 30. In the example of this drawing, the bottom inner surface 31 of the storage portion 30 corresponds to the top surface (inner surface) of the bottom wooden frame provided on both sides, and the riding member 32 is provided on the bottom inner surface 31. The front end of the riding member 32 is an inclined surface, and as shown in FIG. 1B, when the cushion support base 21 is stored, the sliding member 25 provided on the lower surface of the riding member 32 rides on the riding member 32 and moves above it. Sliding and stored. At the time of pulling out, the sliding member 25 is slid on the contrary, and the cushion support base 21 is pulled out. In this case, the sliding members 25 are provided on both sides of the lower surface of the cushion support base 25, corresponding to the riding members 32.

  Further, as shown in FIG. 3, the push-down member 34 provided on the ceiling inner surface 33 at the rear portion of the storage portion is provided at a location corresponding to the center of the riding member 32 shown in FIG. The tip of the push-down member 34 is also an inclined surface, and as shown in FIG. 1A, the rear end portion 26 of the cushion support base 21 that is stored is pushed down to move the cushion support base 21 together with the riding member 32. Enclose and store.

  The arrangement of the riding member 32 and the pushing down member 34 is not limited to the arrangement shown in FIGS. 2 and 3, and both members may be placed on both sides, or the pushing down member 34 may be placed in the center of the riding member 32 and on both sides. The arrangement of both members is not particularly limited as long as the cushion support base 21 that is pushed and accommodated can be sandwiched by both members. However, the arrangement shown in FIGS. 2 and 3 is preferable from the viewpoint of stability of movement and stability of sandwiching between the two members when the cushion support base 21 is pulled out and stored.

  FIG. 4 is an external perspective view of the sleeper sofa in the form of the bed shown in FIG. 1C, in which the back cushion 15 is arranged on the upper surface of the cushion support base 21 of the movable portion 20 that is pulled out, and the seat surface seat. Together with 11, it forms the bed surface. The elbow cushion 17 is used as a pillow. Further, in such a state that the movable portion 20 is pulled out, the cushion support base 21 can be used as a side table without disposing the backrest cushion 15. Moreover, in this form, not only can it be used as a bed, but a sofa for two people can also be used as a sofa for three to four people.

  In the sleeper sofa shown in FIGS. 1 and 4, the sofa body 10 is provided with the backrest seat 14, but the seatback seat 14 may not be provided. It can be preferably used in a shape or as a chair for a large number of people.

  Examples of the synthetic resin having a small friction coefficient and excellent wear resistance used for the sliding member of the present invention include polyacetal (polyoxymethylene), polyamide such as nylon 66, nylon 12, nylon 46, and polytetrafluoroethylene. Fluororesin, polypropylene, ultra-high molecular weight polyethylene having a molecular weight of more than 1,000,000 are preferably used. In particular, polyacetal is preferable from the viewpoint of processing characteristics and sliding characteristics, and lubricating oil may be blended or fluororesin may be added to improve sliding characteristics. Further, either a copolymer or a homopolymer may be used. This type of polyacetal can also be used. These synthetic resins may be molded in the shape of an elongated plate, and may be adhered to a support such as a steel plate in the form of a tape or coated on the surface of the support to form a sliding member.

  In the above description, the aspect in which the movable portion 20 is pulled out from one side of the sofa body 10 has been described. However, the storage unit and the movable unit are provided on both sides of the sofa body 10 from which the armrest seat 16 is removed, and the movable unit and the storage unit provided on the both sides are pulled out or stored. The above description can be applied as it is to the operational effects of the movable part, the storage part, and the members provided in these parts.

  Since the sleeper sofa of the present invention can be easily moved when it is in the form of a sofa, it is for an attendant in a hospital room with limited indoor space, an emergency in a waiting room at a hospital, and a night watcher at a hospital. It can be suitably used for the above, and can also be used for rest rooms of general households, factories and offices.

10 Sofa Main Body 11 Seat Seat 12 Stand 13 Caster 14 Backrest Seat 15 Backrest Cushion 16 Armrest Seat 17 In-Elbow Cushion 18 Outer Side of Mount 19 Lock Pedal 20 Movable Part 21 Cushion Support 22 Side Plate 23 Side Plate Bottom 24 Side Plate Inner Side 25 Sliding member 26 Rear end part of cushion support base 30 Storage part 31 Bottom inner surface 32 Riding member 33 Ceiling inner surface 34 Push-down member 35 Rattling prevention member 36 Storage port 40 Magnet fixture pair

Claims (4)

The frame of the seating surface sheet sofa body, casters are provided at the lower end, housing section is provided inside the movable portion provided freely drawer housed in the side of the couch body to the housing portion, the cushion support table and consists of a side plate provided on the cushion support base front end, at the time of drawing out the lower end of the side plate in contact with the floor surface horizontally holding the cushion support base, the cushion is arranged on the cushion support table top , becomes the bed forms together with the seating surface sheet, at the time of storage, in a sleeper sofa as a sofa configuration,
Sliding member provided on the lower surface of the cushion support base, the bottom inner surface of said housing portion is provided members riding was slope front end, the rear of the ceiling portion inner surface of the housing section was slope front end depressed member provided, the cushion support table by being pushed into the accommodating portion, the sliding member slides over the run-up member, then the rear end of the cushion support base is pushed down by the depressing member is sandwiched between the depressing member and the run-up member, sleeper sofa lower end of said side plates and said movable portion floats from the floor are housed. The housed side plates of the movable portion is capable Yuradodo up and down relative to the frame, the side plate at a position other corresponding to the outer surface of the frame of one of which accommodating section accommodating opening neighborhood of the magnet fixture pairs the inner surface, which pair coupling surface is provided so as to be parallel to the outer surface and the inner surface, the side plate and the frame of the movable portion of the housing the pair coupling surface of each other and combined at the movable part is fixed is, by the side plate when the drawer is swung in the vertical direction, deviation each of the pair coupling surface slides, binding off of the magnet fixture pair that fixation of the side plate is released The sleeper sofa according to claim 1, which is characterized in that. Sleeper Sofa according to claim 1 or 2, wherein the movable portion is provided so as to be freely drawer housed on both sides of the couch body. The sleeper sofa according to claim 1, wherein the caster is a caster with a lock.

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