WO2020059740A1

WO2020059740A1 - Assemblable sofa

Info

Publication number: WO2020059740A1
Application number: PCT/JP2019/036522
Authority: WO
Inventors: 靖久井上; 幸司島原; 尊礼村山; 杉山　清; 和明佐藤
Original assignee: 株式会社ニトリホールディングス
Priority date: 2018-09-19
Filing date: 2019-09-18
Publication date: 2020-03-26
Also published as: CN112702937A

Abstract

Provided is an assemblable sofa that is lightweight, not bulky, and easy to assemble, and has members that have high strength. This sofa (100) is provided with a pedestal (10), and a seat portion mat (20) placed on the pedestal (10). The pedestal (10) has recessed sections on both surfaces of a flat plate, the recessed sections being surrounded by side walls (11) protruding from the flat plate, and the seat portion mat (20) has a sub mat (22) accommodated in the recessed sections (12). Moreover, a sofa which is easy to assemble and has high strength is achieved. In this assemblable sofa (700), a pedestal (710) and a back rest part (740) are connected via a connection member (810). The connection member (810) has a hook-like part (810d) on a pedestal (710)-side end section. The pedestal (710) has a frame body (120) hooked to the connection member (810), and is provided with a gap (121) which accommodates the hook-like part (810d) while the connection member (810) is hooked to the framed body (120).

Description

Assembling sofa

The present invention relates to an assembling sofa.

Patent Documents 1 to 3 and 5 describe an assembling sofa which is easy to transport and carry in. Since the sofas described in Patent Literatures 1 to 3 and 5 are of an assembling type, it is possible to adopt a configuration in which the presence or absence of a backrest or an armrest, the number of seats, and the like are adapted to the user's preference. Patent Document 4 discloses a sofa using a metal pipe as a frame.

Japanese Utility Model Gazette “Japanese Utility Model Publication No. 56-128059” Japanese Utility Model Gazette, Japanese Utility Model Publication No. 3-129349 (published on December 26, 1991) Japanese Unexamined Patent Publication "JP-A-2016-168320 (published on September 23, 2016)" Japanese Unexamined Patent Publication "Japanese Patent Laid-Open No. 10-276861 (published on October 20, 1998)" Japanese Unexamined Patent Publication No. 2008-545504 (published on December 18, 2008)

The assembling-type sofa uses heavy and bulky members in order to secure the strength, so that the transport and storage efficiency is poor, and it is complicated and difficult to assemble. Therefore, there is a demand for an assembling sofa that is light and bulky, easy to assemble, and has sufficient strength. An object of one embodiment of the present invention is to provide an assembling sofa having a member that is light in weight, not bulky, easy to assemble, and has sufficient strength.
Further, in some of the conventional assembling sofas, the strength is ensured by complicating a method of connecting parts, and as a result, it is difficult to assemble the sofa. Also, in some of the conventional assembling sofas, assembly is facilitated by simplifying the connection between parts, and as a result, the strength of the sofa is not sufficient. Further, in the conventional method of connecting the backrest to the pedestal, there is a method using a connecting member of a sandwiching or inserting type, and a method of connecting with a bolt and a screw. However, such a connection method has a property that the connection strength becomes poor depending on the load or the pulling direction applied to the connection portion. Therefore, in such a connection method, when the sofa is moved, the connection may be disconnected only by lifting the backrest. Another object of the present invention is to provide an assembling sofa that is easy to assemble, prevents strength from being reduced by a load or a pulling direction, and has sufficient strength for use and transportation.

In order to solve the above-described problems, an assembled sofa according to one embodiment of the present invention includes a pedestal having recesses on both sides of the flat plate, the concave portions being surrounded by side walls protruding from the flat plate, and being mounted on the pedestal. And a seat mat having a convex portion accommodated in the concave portion on one surface of the pedestal.
In addition, a prefabricated sofa according to another aspect of the present invention is a prefabricated sofa that is assembled by connecting a pedestal and a backrest via a connecting member, wherein the connecting member has a hook at an end on the pedestal side. The base has a frame for hooking the connecting member, and a gap is provided for accommodating the hook-like portion in a state where the connecting member is hooked on the frame.

According to one aspect of the present invention, since the flat portion of the pedestal has concave portions surrounded by side walls protruding from the flat plate on both surfaces, the strength is secured while being light and bulky and easy to assemble. An assembled sofa having a pedestal can be realized. Further, according to another aspect of the present invention, since the hook-like portion of the connecting member that connects the pedestal and the backrest is accommodated in the gap of the pedestal, the connecting member attached to the backrest is replaced with the pedestal. It is possible to connect and assemble the pedestal and the backrest only by hooking it on the frame body, and it is also possible to ensure the strength of the connection between the pedestal and the backrest.

It is a schematic diagram which shows the sofa which concerns on the aspect 1 of this invention. It is a schematic diagram which shows the pedestal of the sofa which concerns on the aspect 1 of this invention. It is a schematic diagram which shows the seat mat of the sofa which concerns on the aspect 1 of this invention. It is a schematic diagram which shows the position adjustment member of the sofa which concerns on the aspect 1 of this invention. It is a schematic diagram which shows the seat mat case of the sofa which concerns on the aspect 1 of this invention. It is a schematic diagram which shows the connection member of the sofa which concerns on the aspect 1 of this invention. It is a perspective view showing the outline of the sofa concerning mode 2 of the present invention. It is a schematic diagram which shows the connection member of the sofa which concerns on the aspect 2 of this invention. It is a mimetic diagram showing the example of the pedestal of the sofa concerning mode 2 of the present invention. It is a figure explaining an example of the assembling method of the sofa concerning mode 2 of the present invention. It is a mimetic diagram showing the example of the pedestal of the sofa concerning mode 2 of the present invention. It is a mimetic diagram showing the seat mat of the sofa concerning mode 2 of the present invention.

[Aspect 1]
Hereinafter, the first embodiment of the present invention will be described in detail with reference to the drawings. A state 101 in FIG. 1 is a perspective view showing the entire sofa, and a state 102 in FIG. 1 is an exploded perspective view for explaining a part of the state 101 in FIG. As shown in a state 101 in FIG. 1, the sofa (assembled sofa) 100 includes a pedestal 10 and a seat mat 20. Further, the sofa 100 may include an armrest (elbow rest part) 30, a backrest part 40, a backrest cushion 50, a headrest 60, a leg 70, and a position adjustment bar (position adjustment member) 80. A state 101 in FIG. 1 shows a state where the sofa 100 is assembled. The sofa 100 can be disassembled for each component as shown in a state 102 in FIG. 1, and can be transported and carried in for each component. Therefore, even if the carry-in space is narrow, carry-in is possible. In the first embodiment, a two-seat sofa 100 to which two pedestals 10 are connected is described as an example for convenience of explanation.

As shown in the perspective view 201, the cross-sectional perspective view 202, and the cross-sectional view 203 of FIG. 2, the pedestal 10 has, on both sides of the flat plate, concave portions surrounded by side walls 11 protruding from the flat plate. The seat mat 20 is used by being placed on the base 10, and is a member on which a user sits. As shown in a perspective view 301 and a side view 302 of FIG. 3, the seat mat 20 includes a sub mat 22 and a main mat 21 which are convex portions to be accommodated in the concave portions 12 on one surface of the pedestal 10. . The sub mat 22 is provided so as to protrude from the main mat 21. Details of the pedestal 10 and the seat mat 20 will be described later.

The armrest 30 is used by being attached to the side wall 11 of the pedestal 10, and is a member that supports a user's hand, arm, and the like. The backrest portion 40 is used by being attached to the side wall 11 of the pedestal 10, and is a member on which a backrest cushion 50 is placed to support a user's back, head, and the like. As shown in a perspective view 401 in FIG. 4, the armrest 30 and the backrest portion 40 may be ones in which a cover is put on a frame, and a cushioning material is used so as not to hurt when the user's arm or back hits the frame. A cover may be put on the one that covers the frame. The material of the frame of the armrest 30 and the backrest portion 40 is not particularly limited, but may be, for example, a metal frame such as steel, which is easy to process. The armrest 30 and the backrest 40 may be formed with a hole for attaching a connecting member to the pedestal 10.

The backrest cushion 50 is used by being placed on the backrest part 40 and is a member that supports the back of the user. The back cushion 50 has a cushion material, and may be formed from the same cushion material as the seat mat 20. In order to prevent a displacement of the backrest cushion 50 on the backrest part 40, a displacement prevention member such as a hook-and-loop fastener may be provided on the backrest cushion 50 and the backrest part 40.

The headrest 60 is used in connection with the back cushion 50 and is a member that supports the user's head. The headrest 60 is assembled, for example, by inserting a connection bar attached to the headrest 60 into a connection hole of the back cushion 50. The headrest may be obtained by covering the frame with a cover, or by covering the frame with a cushion material so that the headrest does not hurt when hit by the user's head. The material of the frame of the headrest 60 is not particularly limited. For example, a metal frame such as steel may be used.

The leg 70 is used by being attached to the lower surface of the pedestal 10, and supports the pedestal 10. It is preferable that the number of the legs 70 to be able to support the pedestal 10 is attached. When a plurality of pedestals 10 are connected and used, legs 70 are preferably attached between the pedestals 10 in order to reinforce the support of the pedestals 10. In the case where the legs 70 are attached between the pedestals 10, the legs 70 may be attached to a connecting member that connects the pedestals 10 to each other.

The position adjusting bar 80 is used by being housed in the recess 12 of the pedestal 10, and adjusts the position of the seat mat 20 in the sofa 100 by adjusting the position of the seat mat 20 in the recess 12. I do. Details of the position adjustment bar 80 will be described later.

構造 The structure of the base 10 will be described with reference to FIG. 2 is a perspective view of the pedestal 10, a cross-sectional perspective view 202 of FIG. 2 is a cross-sectional perspective view of the pedestal 10, and a cross-sectional view 203 of FIG. 2 is a cross-sectional view of the pedestal 10. The pedestal 10 has concave portions surrounded by side walls protruding from the flat plate on both surfaces of the flat plate. As shown in the perspective view 201 of FIG. 2, the side wall 11 is provided so as to protrude from each of four sides of the rectangular pedestal 10. The side wall 11 is preferably provided so as to protrude vertically from an end of the flat plate of the pedestal 10 in the plane direction. However, as long as a concave portion is formed inside the side wall 11, from the inner side of the end of the flat plate. It may be provided so as to protrude.

断面 A cross-sectional perspective view 202 and a cross-sectional view 203 in FIG. 2 are cross-sectional views of the pedestal 10 shown in the perspective view 201 in FIG. As shown in the cross-sectional perspective view 202 and the cross-sectional view 203 of FIG. 2, the pedestal 10 has an H-shaped cross section, and the concave portion 12 and the concave portion 14 are formed on both surfaces of the flat plate of the pedestal 10. That is, the pedestal 10 has a concave portion 12 surrounded by a side wall 11 protruding from the upper surface of the flat plate and a concave portion 14 surrounded by a side wall 11 protruding from the lower surface of the flat plate. The side wall 11 protruding from the upper surface of the pedestal 10 and the side wall 11 protruding from the lower surface may be formed continuously, or may be formed independently of each other. Further, the flat plate and the side wall 11 of the pedestal 10 may be independently molded and then connected, but are preferably integrally molded.

Since the concave portion 12 and the concave portion 14 surrounded by the side wall 11 are formed on the flat plate of the pedestal 10, the bending moment and the shearing force are improved as compared with a simple plate-like body having no side wall 11, Deformation such as twisting or breaking can be prevented. As a result, the strength of the pedestal 10 can be secured. Further, since the base 10 is light and not bulky, it is easy to assemble, so that it is possible to reduce the transportation cost and reduce the time and labor required for carrying in and assembling (short-time delivery). That is, since the concave portion 12 and the concave portion 14 surrounded by the side wall 11 are formed in the flat plate of the pedestal 10, the sofa 100 is light and bulky, easy to assemble, and has a pedestal having a secured strength. A sofa can be realized.

By having the recess 12, the seat mat 20 can be fixed and prevented from being displaced only by accommodating the submat 22, which is the projecting portion of the seat mat 20, in the recess 12. Therefore, assembling of the sofa 100 is easy. Further, by having the concave portion 12, the position of the seat mat 20 in the depth direction can be easily changed according to the user's preference only by accommodating the position adjusting bar 80 described later in the concave portion 12. .
In addition, the seat mat 20 can be made thicker by the depth of the concave portion 12, that is, by the thickness of the submat 22, so that the sitting comfort can be improved.

強度 By having the concave portion 14, the strength of the pedestal 10 can be improved. Further, the bottom surface of the concave portion 14, that is, the lower surface of the pedestal 10 may have a wavy structure having a plurality of irregularities. Thereby, the upper flat surface of the pedestal 10 is supported by the uneven shape, so that it can be suppressed from bending downward, and furthermore, the deformation of the flat plate of the pedestal 10 can be further suppressed. As a result, the strength of the pedestal 10 can be further improved. Further, the recessed portion 14 can accommodate the compressed seat mat 20 or the backrest cushion 50, so that the package can be compactly packed and the transportation cost can be reduced. The pedestal 10 is covered with a cover when the sofa 100 is used, but the cover on the concave portion 14 side may be opened and closed so that the seat mat 20 or the back cushion 50 can be accommodated.

The pedestal 10 may be made of metal such as steel, but may be made of resin, glass fiber, cellulose, or the like. As shown in the sectional perspective view 202 of FIG. 2, if the base 10 is a hollow structure, its weight can be reduced, and transport and assembly are easy. The base 10 may be a resin hollow body, and the resin hollow body can be formed by, for example, blow molding. The pedestal 10 of the blow-molded resin hollow body is easier to manufacture than the pedestal obtained by processing wood.

連結 The side wall 11 of the pedestal 10 is provided with a connecting portion 13 between the plurality of pedestals 10 and for connecting the pedestal 10 with the armrest 30 and the backrest 40. The side wall 11 has a connecting portion 13a provided at a portion which becomes a lateral side when the sofa 100 is assembled, and a connecting portion 13b provided at a portion which becomes a back side when the sofa 100 is assembled. Are provided.

The connecting portion 13 a is used for connecting the armrest 30 to the pedestal 10 and for connecting the plurality of pedestals 10. That is, the connecting portion 13a is used both for connecting the armrest 30 and for connecting the pedestals 10. The connecting portion 13b is used to connect the backrest 40 to the pedestal 10. The shape of the connecting portion 13 may be any shape as long as a connecting member for connecting to another member can be attached. For example, a hole for screwing the connecting member may be formed. Further, the connecting portion 13a and the connecting portion 13b may have the same shape. In the pedestal 10, holes for attaching a connecting member and holes for attaching the legs 70 are formed not only on the side wall 11 on the concave portion 12 side but also on the side wall 11 on the concave portion 14 side. Details of a connecting member for connecting another member to the pedestal 10 will be described later.

The details of the seat mat 20 will be described with reference to FIG. 3 is a perspective view of the seat mat 20, and a side view 302 of FIG. 3 is a side view of the seat mat 20. As shown in the perspective view 301 and the side view 302 of FIG. 3, the seat mat 20 is formed so that the sub mat 22 projects from the main mat 21, and the sub mat 22, which is a convex portion, is housed in the concave portion 12 of the pedestal 10. It is supposed to be.

The seat mat 20 may be made of a cushion material in which the main mat 21 and the sub mat 22 are integrally formed. In addition, the seat mat 20 is a cushion material in which the main mat 21 and the sub mat 22 are separated from each other, and may be configured as one seat mat 20 by being housed in a cover 23 described later. The cushion material used as the seat mat 20 is not particularly limited, but may be a molded urethane.

The main mat 21 has a shape that is raised so that when the sofa 100 is assembled, the thickness of the main mat 21 increases from the end facing the backrest 40 toward the end facing the backrest 40. The sub-mat 22 is shaped to be accommodated in the recess 12 of the pedestal 10, but at least by the size of the position adjustment bar 80 so that the accommodation position of the sub-mat 22 in the recess 12 can be adjusted by the position adjustment bar 80. It is preferably smaller than the recess 12.

The main mat 21 and the sub mat 22 may be made of cushion materials having different hardnesses. For example, the sub mat 22 for preventing the displacement of the seat mat 20 is a harder cushion material, and the main mat 21, which is a portion where the user sits, is a softer cushion material. When mold urethane is used as the cushion material, high-density mold urethane is used as the submat 22 and low-density mold urethane is used as the main mat 21. Further, the seat mat 20 may have chip urethane on the side that becomes the seat surface of the main mat 21. Further, a pocket coil may be used as the cushion material. For example, molded urethane may be used as the main mat 21 and a pocket coil may be used as the submat 22. When a pocket coil is used as the submat 22, the concave portion 12 serves as a pocket coil accommodating portion. By configuring the seat mat 20 with a plurality of cushion materials having different hardnesses as described above, it is possible to provide a sofa with excellent sitting comfort.

The adjustment of the position of the seat mat 20 by the position adjustment bar 80 will be described with reference to FIG. 4 is a perspective view showing the sofa 100 with the concave portion 12 exposed, and

side views

402 and 403 of FIG. 4 are side views showing a use state of the position adjustment bar 80. FIG. When the depth of the sofa is adjusted to the average body shape of a man, there is a problem that a woman with an average body shape may have legs lifted when sitting and may not be sufficiently supported by a back cushion. In addition, when the depth of the sofa is adjusted to the average body shape of a woman, when a man of the average body shape sits down, the feet may come out of the sofa too much. Thus, the comfortable depth varies depending on the user's body shape. In order to solve such a problem, the sofa 100 can adjust the depth of the sofa by the position adjustment bar 80.

The position adjustment bar 80 is a block-like body that extends in a direction along the backrest 40 of the recess 12 as shown in a perspective view 401 of FIG. As shown in the side view 402 of FIG. Move to the side away from 40. As a result, the main mat 21 projects outside the pedestal 10 by the width of the position adjustment bar 80. On the other hand, as shown in the side view 403 of FIG. 4, when the position adjusting bar 80 is provided on the front side of the concave portion 12, that is, on the side far from the backrest portion 40, the sub mat 22 is To the backrest 40 side. Accordingly, the main mat 21 is lowered toward the backrest 40 by the width of the position adjustment bar 80, and the portion protruding from the pedestal 10 is reduced. As described above, the position of the seat mat 20 can be adjusted only by providing the position adjusting bar 80, and the depth of the seat surface of the sofa can be adjusted, so that the sitting comfort of the user can be easily improved.

The position adjustment bar 80 is located below the main mat 21 and is preferably formed of a cushion material so as to affect the sitting comfort of the user. The position adjusting bar 80 may be formed of the same cushion material as the seat mat 20, and may be, for example, molded urethane or a rigid foam.

The cover 23 of the seat mat 20 will be described with reference to FIG. The side view 501 of FIG. 5 is a side view showing a state where a part of the cover 23 of the seat mat 20 is opened, and the perspective view 502 of FIG. 5 is a state where the cover 23 of the seat mat 20 is more widely opened. FIG. The cover 23 accommodates the two cushion members of the main mat 21 and the sub mat 22 in one cover, thereby integrating the seat mat 20. The cover 23 has a housing portion 23a that houses the main mat 21 and a housing portion 23b that houses the sub mat 22. The accommodation section 23a and the accommodation section 23b are separated by the isolation section 24. The sub mat 22 is housed in the cover 23 so as to protrude from the main mat 21.

The cover 23 can be opened and closed by a line fastener, and the main mat 21 can be accommodated in the accommodating portion 23a by opening the line fastener provided along the outer periphery of the main mat 21. Then, as shown in a perspective view 502 of FIG. 5, when the line fastener provided along the outer periphery of the main mat 21 of the cover 23 is opened, the accommodating portion 23b is formed via the isolating portion 24. By opening the line fastener provided near the center of the isolation part 24, the sub mat 22 can be accommodated in the accommodation part 23b.

Thus, the cover 23 has a double structure capable of separately storing the main mat 21 and the sub mat 22. By accommodating the main mat 21 and the sub mat 22 in the respective accommodation spaces of the cover 23, the integrated seat mat 20 is formed. Accordingly, a positional shift between the main mat 21 and the sub mat 22 can be prevented, and a shape in which the sub mat 22 protrudes from the main mat 21 can be maintained.

A connecting member for connecting another member to the pedestal 10 and connecting the plurality of pedestals 10 will be described with reference to FIG. A perspective view 601 of FIG. 6 is a perspective view illustrating a connecting member, and

perspective views

602 and 603 of FIG. 6 are perspective views illustrating a connecting state by the connecting member. As shown in perspective views 601 to 603 in FIG. 6, the sofa 100 can be assembled by using three types of connecting members 91 to 93.

The connecting member 91 connects the armrest 30 or the backrest 40 to the pedestal 10, as shown in a perspective view 602 in FIG. The connection member 91 includes a first contact portion 91a that contacts the armrest 30 or the backrest portion 40, a second contact portion 91b that contacts the inner surface of the side wall 11 of the pedestal 10, and a first contact portion 91a. And a connecting portion 91c for connecting the second contact portion 91b in a stepwise manner. It should be noted that an embodiment in which the armrest 30 or the backrest 40 is connected to the pedestal 10 by using a connecting member 810 shown in FIG. 8 described in an after-mentioned embodiment 2 instead of the connecting member 91 is also included in the scope of the present invention. It is. The first contact portion 810a, the second contact portion 810c, and the connection portion 810b of the connection member 810 correspond to the first contact portion 91a, the second contact portion 91b, and the connection portion 91c of the connection member 91, respectively. doing.

When connecting the armrest 30 or the backrest 40 to the pedestal 10, first, the first contact portion 91a is brought into contact with the armrest 30 or the backrest 40, and the connection member 91 is connected to the armrest 30 or the backrest 40 by, for example, screwing. It is attached to the backrest 40. Then, the second contact portion 91b is brought into contact with the inner surface of the side wall 11 of the pedestal 10, and the connection portion 91c is brought into contact with the upper surface of the side wall 11. Since the first contact portion 91a and the second contact portion 91b are connected stepwise by the connection portion 91c, the connection member 91 can be hooked on the side wall 11.

位置決め By hooking the connecting member 91 on the side wall 11, the positioning of the connecting member 91 is easy. Further, the armrest 30 or the backrest 40 can be made hard to fall without the user supporting it by hand, and can be temporarily fixed to the pedestal 10. Then, in a state where the armrest 30 or the backrest 40 is temporarily fixed to the pedestal 10, the armrest 30 or the backrest 40 is fixed to the pedestal 10, for example, by screwing the armrest 30 or the backrest 40 to the pedestal 10. 10 can be connected. Since the pedestal 10 has the side wall 11 in this manner, the armrest 30 or the backrest 40 can be easily connected, and the connection strength is improved by supporting these connections.

The connecting member 92 is used to connect the pedestals 10 when connecting and using the plurality of pedestals 10. The connecting member 92 connects the lower surfaces between the two pedestals 10 as shown in a perspective view 603 of FIG. The connection member 92 may be formed with a hole for attaching the leg 70 by, for example, screwing.

The connection member 93 is used to reinforce the connection between the pedestal 10 and the armrest 30 or the backrest 40 and the connection between the plurality of pedestals 10. The connecting member 93 reinforces the connection of the lower surface between the pedestals 10 by the connecting member 92 by connecting the upper surfaces between the two pedestals 10 as shown in a perspective view 602 in FIG. As shown in a perspective view 603 of FIG. 6, the connecting member 93 connects the lower surface of a portion connecting the pedestal 10 to the armrest 30 or the backrest 40, thereby forming the pedestal 10 and the armrest 30 by the connecting member 91. Alternatively, the connection of the upper surface with the backrest 40 is reinforced.

As described above, the sofa 100 is used by connecting and assembling the members constituting the sofa 100, and the user can freely select a combination of the members to be connected. Therefore, it may be used as a so-called ottoman only by mounting the seat mat 20 on the pedestal 10 and attaching the legs 70. In addition, since there is no limit on the number of bases 10 to be connected, two bases 10 may be connected to form a two-seat sofa, or three bases 10 may be connected to form a three-seat sofa. Four or more pedestals 10 may be connected. Further, it is possible to select whether or not the armrest 30 is connected, whether or not the backrest 40 is connected, and whether or not the headrest 60 is connected. The design of each member such as the armrest 30 and the height of the legs 70 can be variously selected.

[Aspect 2]
A prefabricated sofa according to a second aspect of the present invention is a prefabricated sofa that is assembled by connecting a pedestal and a backrest via a connecting member. First, the overall configuration of the knockdown sofa according to the second embodiment of the present invention will be described with reference to FIG. FIG. 7 is a perspective view showing an outline of the sofa according to the second embodiment of the present invention. In FIG. 7, a state 701 shows an entire state of the sofa assembled, and a state 702 shows a state in which a part of the sofa is disassembled.

As shown in the state 701, the sofa (assembled sofa) 700 includes a base 710, a backrest 740, and a connecting member 810. Further, the sofa 700 may include a seat mat 720, an armrest 730, a back cushion 750, a headrest 760, and legs 770. The sofa 700 can be disassembled for each component as shown in a state 702, and can be transported and carried in for each component. Therefore, even if the carry-in space is narrow, carry-in is possible. In the state 701, for convenience of explanation, a two-seat sofa 700 to which two pedestals 710 are connected is described as an example.

The pedestal 710 has a frame 120 on which the connecting member 810 is hooked, as shown in FIG. The pedestal 710 is provided with a space 121 in at least one of a part of the surface of the frame body 120 and the lower side. As shown in FIG. 9, the frame body 120 has a side wall 120a protruding from the flat plate 120b, and the gap may be a depression provided in the side wall 120a. Further, as shown in FIG. 11, the pedestal 710 may be provided with a void 711b by protruding a part of the side wall 711 protruding from the flat plate toward the inside. Details of the pedestal 710 will be described later.

The backrest 740 is used by being attached to the pedestal 710. A backrest cushion 750 is placed on the backrest 740 to support the user's back, head, and the like. The backrest portion 740 may be a frame in which a cover is covered, or a cover in which the frame is covered with a cushion material. The material of the frame of the backrest portion 740 is not particularly limited. For example, even if the frame is made of a metal such as steel, which is easy to process, the connecting member may be connected to a part of a block structure such as a resin hollow structure. May be provided. A hole for attaching a connection member to the pedestal 710 may be formed in the backrest 740.

The connecting member 810 connects the pedestal 710 and the backrest 740. In order to secure the strength, the connecting member 810 is made of, for example, a metal. With reference to FIGS. 8 and 9, the connection between the pedestal 710 and the backrest 740 via the connection member 810 will be described. FIG. 8 is a schematic diagram illustrating a connecting member of the sofa, and FIG. 9 is a schematic diagram illustrating an example of a frame body included in the base of the sofa.

The connecting member 810 has a hook-shaped portion 810d. The connection member 810 includes a first contact portion 810a that contacts the back contact portion 740, a second contact portion 810c that contacts the frame 120, and a first contact portion 810a and a second contact portion 810c that are connected in a staircase. And a connection portion 810b for connecting the electrodes in a shape. In the connection member 810, the hook-shaped portion 810d is provided so as to protrude from an end of the second contact portion 810c opposite to the connection portion 810b so as to face the connection portion 810b.

Thus, the hook 810d is accommodated in the gap of the frame 120 only by hooking the connecting member 810 attached to the backrest 740 on the frame 120. The hook 810d is accommodated in the gap, so that the connecting member 810 is fixed to the frame 120. Therefore, for example, even if the user sits on the sofa 700 and leans on the backrest 740, and a force is applied in a direction in which the connection member 810 is not hooked on the frame 120, the state in which the connection member 810 is hooked on the frame 120 may occur. Will be maintained. As a result, the connection strength between the pedestal 710 and the backrest 740 can be secured without bolting the connection member 810 to the frame body 120 or the like.

In FIG. 9, a perspective view 903 schematically shows a frame 120 formed by assembling a wooden square bar, for example, and a cross-sectional view 903 a is obtained by cutting the frame 120 shown in the perspective view 903 at a position indicated by a chain line. The state is shown. In the frame body 120 shown in the perspective view 903, the backrest portion 740 is connected to one of the square members extending in the horizontal direction. When the connecting member 810 is hooked on the frame 120, the connecting portion 810b abuts on the upper surface of the square member, the second contact portion 810c abuts on the side surface of the square member, and the hook-shaped portion 810d is on the lower surface of the square member. Abut

において In FIG. 9, sectional views 904 to 906 show another example of the frame body 120. As shown in the sectional views 904 to 906, the frame body 120 may have a side wall 120a protruding from the flat plate 120b. In the cross-sectional view 904, the frame body 120 is provided with a depression 122 in a part of the surface of the side wall 120a. The depression 122 is a space of the pedestal 710.

表面 The surface of the side wall 120a may extend vertically from the flat plate 120b as shown in the cross-sectional view 904, or may extend obliquely from the flat plate 120b as shown in the cross-sectional view 905. In the frame body 120 shown in the cross-sectional view 905, the hook-shaped portion 810d is accommodated in the recess 123 provided in a part of the surface of the side wall 120a.

The frame body 120 may be made of wood or metal such as steel, but may be made of resin, glass fiber, cellulose, or the like. If the frame body 120 is a hollow structure, the weight is reduced, and the transportation and assembly are easy. The frame 120 may be a hollow resin body. The resin hollow body can be formed, for example, by blow molding. The production of the resin hollow body by blow molding is easier than the production of the frame body 120 by wood processing.

ブロック In the resin hollow body frame 120, a block member may be provided on the side wall 120a. The block member may be made of, for example, metal. Further, a metal member may be embedded in a portion corresponding to the side wall 120a of the resin hollow body. Thus, the strength of the portion of the side wall 120a that contacts the connecting member 810 can be increased. The metal member may be provided on the side wall 120a after blow molding the resin hollow body. Further, a metal member may be provided in a portion corresponding to the side wall 120a in the resin hollow body by embedding a metal member in the resin before blow molding and performing the blow molding. An example of the metal member is a steel flat plate.

As shown in the sectional view 906, the block member may be provided on the side wall 120a as a metal part (block member) 124 protruding from the surface of the side wall 120a. In this case, a depression 125 is formed below the metal part 124. In the frame body 120 shown in the cross-sectional view 906, the hook 125 is accommodated in the recess 125. For example, the frame body 120 may be formed by embedding a metal bolt receiving member in a resin before blow molding, and performing blow molding. Thus, the bolt receiving portion is formed inside the resin hollow body corresponding to the upper side of the side wall 120a, and the metal portion 124 can be bolted thereon.

Next, a method of assembling the sofa 700 will be described with reference to FIG. FIG. 10 is a diagram illustrating an example of a method of assembling a sofa according to the second embodiment of the present invention. As shown in step 1007 of FIG. 10, the first contact portion 810a of the connecting member 810 is bolted to the backrest 740, for example. From this state, as shown in step 1008, the backrest 740 is placed on the pedestal 710, and at least a part of the connection member 810 connected to the backrest 740 is accommodated in the gap 121, and the second connection member 810 The first state is established in which a gap is provided between the contact portion 810c and the frame body 120. Here, when the connecting member 810 is connected to the back support 740 and the back support 740 is folded down and overlapped on the pedestal 710, the hook-shaped portion 810d of the connecting member 810 is accommodated in the space 121, The upper surface side of the pedestal 710 is depressed.

When the backrest portion 740 is connected to the pedestal 710 and assembled, the connecting member 810 may be brought into contact with a portion of the frame body 120 where the side wall where the connecting member 810 is hooked intersects with a side wall orthogonal to the side wall. Preferably, it is configured. With this configuration, when connecting the backrest portion 740 to the pedestal 710, the backrest portion 740 can be positioned only by bringing the connecting member 810 into contact with the above-described intersecting portion.

Next, as shown in step 1009, the backrest 740 is rotated around the contact portion between the connecting member 810 and the frame 120 to hook the connecting member 810 on the frame 120. As a result, there is no gap between the second contact portion 810c and the frame 120, and the second contact portion 810c, the hook-shaped portion 810d, and the frame 120 come into surface contact, and the hook-shaped portion 810d comes into contact with the gap 121. It is in the stored second state. That is, by raising the backrest portion 740 from the state of being superimposed on the pedestal 710, the connecting member 810 rotates in the gap 121 and the hook-shaped portion 810d moves the frame 120 from the lower surface of the frame 120 above the gap 121. Contact as if wrapping.

The “surface contact” refers to a surface of the second contact portion 810c and the hook-shaped portion 810d facing the frame 120, and a surface of the frame 120 facing the second contact portion 810c and the hook-shaped portion 810d. However, it means that they touch each other within a certain area. Then, when the back 121 is raised from the state where the backrest 740 is placed on the pedestal 710 and is rotated, the space 121 is moved from the state where a gap is provided between the second contact part 810 c and the frame 120 to the second position. It is preferable that the size is such that the two contact portions 810c and the hook-shaped portions 810d and the frame body 120 are brought into surface contact with each other.

As described above, by turning the backrest 740 from the state where the backrest 740 is overturned and overlaid on the pedestal 710, the pedestal 710 and the backrest 740 can be connected and assembled. is there. As a result, the hook-shaped portion 810d of the connecting member 810 that connects the pedestal 710 and the backrest 740 abuts on the lower surface of the frame 120 above the gap 121 and is fixed. That is, each part of the connection member 810 can be brought into close contact with the upper surface, the front surface, and the lower surface of the square member forming the frame body 120, or the upper surface, the front surface, and the upper surface of the depression of the side wall 120a. As a result, the strength can be ensured against the upward pulling force of the backrest 740, which tends to occur during transportation, and also against the load on the backrest 740 during use. Further, even if the connecting member 810 is not bolted to the pedestal 710, the connecting member 810 is firmly fixed to the frame body 120, and the strength of the connecting portion between the pedestal 710 and the backrest 740 is improved. Therefore, even if the user sits on the sofa 700 and leans on the backrest 740 to apply a force in a direction in which the connection member 810 is not hooked on the frame 120, the hook-shaped portion 810 d is hooked on the frame 120 and the connection member 810. Is kept fixed to the frame 120. Further, even when the sofa 700 is moved by grasping the back portion 740 and pulling it up, the hook-shaped portion 810d is caught by the frame 120, and the back portion 740 does not come off the pedestal 710. Furthermore, since assembly can be performed only by rotating the backrest portion 740 from a state of being overlapped on the pedestal 710, assembly is easy, and there is no need to increase the assembly space, and space saving can be realized.

Finally, in step 1009, after the connecting member 810 is hooked on the frame 120, for example, the flat connecting member 130 is bolted from the bottom surface of the pedestal 710, so that the pedestal 710 is Assembly with the abutment section 740 is completed. The flat connecting member 130 is preferably, for example, a metal flat plate covered with a cloth such as felt in order to suppress noise when the sofa 700 is used.

Another example of the pedestal 710 will be described with reference to FIG. FIG. 11 is a schematic diagram illustrating an example of a pedestal of a sofa according to the second embodiment of the present invention. FIG. 11 shows a perspective view 1111, a sectional perspective view 1112, and a sectional view 1113 of the pedestal 710. The pedestal 710 has a concave portion surrounded by a side wall 711 protruding from the flat plate on at least the upper surface of the flat plate. FIG. 11 shows an example in which the flat plate has concave portions on both sides. The side wall 711 is provided so as to protrude from each of four sides of the rectangular pedestal 710. The side wall 711 may be provided so as to protrude vertically from an end of the flat plate of the pedestal 710 in the plane direction, but from the inside of the end of the flat plate as long as a concave portion surrounded by the side wall 711 is formed. It may be provided so as to protrude.

A cross-sectional perspective view 1112 and a cross-sectional view 1113 show cross-sectional views of the pedestal 710 shown in the perspective view 1111 taken along a dashed line. As shown in these drawings, the pedestal 710 has an H-shaped cross section, and a concave portion 712 and a concave portion 714 are formed on both surfaces of a flat plate of the pedestal 710. That is, the pedestal 710 has the concave portion 712 surrounded by the side wall 711 protruding from the upper surface of the flat plate and the concave portion 714 surrounded by the side wall 711 protruding from the lower surface of the flat plate. The side wall 711 protruding from the upper surface of the pedestal 710 and the side wall 711 protruding from the lower surface may be formed continuously or may be formed independently of each other. Further, the flat plate and the side wall 711 of the pedestal 710 may be independently molded and then connected, but are preferably integrally molded.

Since the concave portion 712 and the concave portion 714 surrounded by the side wall 711 are formed on the flat plate of the pedestal 710, the bending moment and the shearing force are improved as compared with a simple plate body having no side wall 711. Deformation such as twisting or breaking can be prevented. As a result, the strength of the pedestal 710 can be secured. Further, since the base 710 is light and not bulky, it is easy to assemble. Therefore, it is possible to reduce the transportation cost and to reduce the time and labor for carrying in and assembling (delivery in a short time). That is, since the concave portion 712 and the concave portion 714 surrounded by the side wall 711 are formed in the flat plate of the pedestal 710, the sofa 700 has a pedestal that is light and bulky, easy to assemble, and has sufficient strength. A sofa can be realized.

By having the concave portion 712, the seat mat 720 can be fixed and prevented from being displaced only by accommodating the sub mat 722, which is a protruding portion of the seat mat 720, in the concave portion 712. Therefore, assembling of sofa 700 is easy. Further, by having the concave portion 712, the position of the seat mat 720 in the depth direction can be easily changed according to the user's preference only by changing the position of the sub mat 722 with respect to the main mat 721 as described later. be able to. Further, the seat mat 720 can be made thicker by the depth of the concave portion 712, that is, by the thickness of the sub mat 722, so that sitting comfort can be improved.

こと By having the concave portion 714, the strength of the pedestal 710 can be improved. Further, the bottom surface of the concave portion 714, that is, the lower surface of the pedestal 710 may have a wavy structure having a plurality of irregularities. Thereby, the upper flat surface of the pedestal 710 is supported by the uneven shape, and it is possible to suppress the downward bending, and it is possible to further suppress the deformation of the flat plate of the pedestal 710. As a result, the strength of the pedestal 710 can be further improved. Further, the recessed portion 714 can accommodate the compressed seat mat 720 or the back cushion 750, so that the package can be compactly packed and the transportation cost can be reduced. The pedestal 710 is covered with a cover when the sofa 700 is used, but the cover on the side of the concave portion 714 may be opened and closed so that the seat mat 720 or the back cushion 750 can be accommodated.

側壁 A connecting portion 713 for connecting the pedestals 710 and the armrest 730 may be provided between the plurality of pedestals 710 and the side wall 711 of the pedestal 710. The connecting portion 713 is provided on the side wall 711 that is on the side when the sofa 700 is assembled. The pedestal 710 may have a hole for attaching a connecting member or a hole for attaching a leg 770 not only on the side wall 711 on the concave portion 712 side but also on the side wall 711 on the concave portion 714 side.

The connection portion 713 is used for connecting the armrest 730 to the pedestal 710 and for connecting the plurality of pedestals 710. That is, the connecting portion 713 is used for both connecting the armrest 730 and connecting the pedestals 710. The connection portion 713 may be formed with a hole for screwing a connection member between the pedestal 710 and the armrest 730 or a connection member connecting the plurality of pedestals 710.

A block member 711a protruding from the surface of the side wall 711 is provided on the side wall 711 that is the rear side when the sofa 700 is assembled, or a part of the upper side of the side wall 711 protrudes inward to block the member 711a. It is formed so as to have the same shape as. A depression 711b is formed below the block member 711a. When the connecting member 810 is hooked on the side wall 711, the hook 810d is accommodated in the recess 711b. In the pedestal 710, the side wall 711 other than the side wall on which the block member 711a is provided may be formed to be higher in advance than the side wall 711 on the rear side by the thickness of the block member 711a. The height may be adjusted by a seat mat 720 provided on the base 710. Note that the block member 711a may be made of metal.

Here, other members included in sofa 700 will be described. The armrest 730 is used by being attached to the pedestal 710, and is a member that supports a user's hand, arm, and the like. The armrest 730 may be formed by covering the frame with a cover, or by covering the frame with a cushioning material so that the armrest 730 does not hurt when hit by the user's arm. The material of the frame of the armrest 730 is not particularly limited, but may be, for example, a wooden frame, a metal frame, or a frame made of a resin hollow structure. The armrest 730 may have a hole for attaching a connecting member to the pedestal 710.

In addition, the connecting member that connects the armrest 730 and the pedestal 710 may be one in which a contact portion that contacts the armrest 730 and a contact portion that contacts the frame 120 are connected in a stepwise manner by the connection portion. . The armrest 730 can be easily fixed to the pedestal 710 by attaching such a connecting member to the armrest 730, hooking the connecting member to the frame body 120, and then, for example, by bolting.

The backrest cushion 750 is used by being placed on the backrest 740, and is a member that supports the user's back. The backrest cushion 750 has a cushion material, and may be formed from the same cushion material as the seat mat 720. In order to prevent a displacement of the backrest cushion 750 on the backrest 740, a displacement prevention member such as a hook-and-loop fastener may be provided on the backrest cushion 750 and the backrest 740.

The headrest 760 is used in connection with the backrest cushion 750, and is a member that supports the user's head. The headrest 760 is assembled, for example, by inserting a connection bar attached to the headrest 760 into a connection hole of the back cushion 750. The headrest may be obtained by covering the frame with a cover, or by covering the frame with a cushion material so that the headrest does not hurt when hit by the user's head. The material of the frame of the headrest 760 is not particularly limited, but may be, for example, a wooden frame, a metal frame, or a frame made of a resin hollow structure.

The leg 770 is used by being attached to the lower surface of the pedestal 710 and supports the pedestal 710. The number of legs 770 that can support the pedestal 710 is attached. For example, it is preferable that the legs 770 be attached to each of the four corners of the pedestal 710. When a plurality of pedestals 710 are connected and used, it is preferable that legs 770 be attached between the pedestals 710 in order to reinforce the support of the pedestals 710. Note that when attached between the pedestals 710, the legs 770 may be attached to a connecting member that connects the pedestals 10 together.

The seat mat 720 is used by being placed on the pedestal 710, and is a member on which a user sits. The seat mat 720 is placed on the pedestal 710 and has a convex portion that is accommodated in the concave portion 712 of the pedestal 710 shown in FIG. In the case of the frame body 120 shown in the perspective view 903 of FIG. 9, the convex portion of the seat mat 720 is accommodated in a space surrounded by four horizontal square members. As shown in FIG. 12, the seat mat 720 may have a main mat (upper cushion) 721 and a sub mat (lower cushion) 722 connected to the main mat 721 so as to protrude from the main mat 721. Good.

FIG. 12 is a schematic view showing a seat mat of the sofa according to the second embodiment of the present invention. FIG. 12 shows a perspective view 1214 and a side view 1215 of the seat mat 720. The seat mat 720 is connected so that the sub mat 722 projects from the main mat 721. In the seat mat 720, the position of the sub mat 722 with respect to the main mat 721 can be changed.

When the depth of the sofa is adjusted to the average body size of a man, there is a problem that a woman with an average body shape may have legs lifted when sitting and may not be sufficiently supported by a back cushion. In addition, when the depth of the sofa is adjusted to the average body shape of a woman, when a man of the average body shape sits down, the feet may come out of the sofa too much. Thus, the comfortable depth varies depending on the user's body shape.

Since the sub mat 722 of the seat mat 720 is accommodated in the concave portion 712 of the pedestal 710, only the position of the sub mat 722 with respect to the main mat 721 is changed, and the position of the seat mat 720 in the depth direction is adjusted to the user's preference. Can be easily changed. For example, the main mat 721 and the sub mat 722 may be connected by a hook-and-loop fastener, a plurality of hook-and-loop fasteners on the main mat 721 side may be provided in the arrow X direction of the side view 1215, or a wide hook-and-loop fastener may be provided in the arrow X direction. Good. Thus, the position of the sub mat 722 with respect to the main mat 721 can be changed only by selecting the position where the hook-and-loop fastener of the sub mat 722 is stuck to the main mat 721.

The main mat 721 has a shape that is raised so as to increase in thickness from the end on the backrest portion 740 side when the sofa 700 is assembled to the end on the opposite side. The sub mat 722 has a shape that is accommodated in the concave portion 712 of the pedestal 710. The cushion material used as the seat mat 720 is not particularly limited, and examples thereof include molded urethane. The main mat 721 and the sub mat 722 may be made of cushion materials having different hardnesses.

For example, the sub mat 722 for preventing the displacement of the seat mat 720 is a harder cushion material, and the main mat 721 on which the user sits is a softer cushion material. When mold urethane is used as the cushion material, high-density mold urethane is used as the submat 722 and low-density mold urethane is used as the main mat 721. Further, the seat mat 720 may have chip urethane on the side that becomes the seat surface of the main mat 721. Further, a pocket coil may be used as the cushion material. For example, molded urethane may be used as the main mat 721 and a pocket coil may be used as the sub mat 722. When a pocket coil is used as the sub mat 722, the concave portion 712 serves as a pocket coil accommodating portion. As described above, by configuring the seat mat 720 with a plurality of cushion materials having different hardnesses, a sofa with excellent sitting comfort can be provided.

The present invention is not limited to the embodiments described above, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention.

10 pedestal, 11 side wall, 12 concave portion, 14 concave portion, 20 seat mat, 21 main mat, 22 sub mat (convex portion), 23 cover, 24 isolation portion, 30 armrest (elbow rest portion), 40 back rest portion, 80 position Adjusting bar (position adjusting member), 91 connecting member, 91a first contact portion, 91b second contact portion, 91c connecting portion, 710 pedestal, 711 side wall, 712 concave portion, 720 seat mat, 721 main mat (upper cushion) ), 722 sub mat (lower cushion), 740 backrest, 700 sofa (assembled sofa), 810 connecting member, 810d hook-shaped part, 120 frame, 120a side wall, 120b flat plate, 124 metal part (block member)

Claims

A pedestal having concave portions surrounded by side walls protruding from the flat plate on both surfaces of the flat plate,
A seat mat placed on the pedestal and having a protrusion accommodated in the recess on one surface of the pedestal,
An assembling sofa comprising:
The assembly type sofa according to claim 1, wherein the pedestal is formed of a hollow structure.
A first contact portion that connects the pedestal to at least one of a backrest portion and an elbow contact portion, and a first contact portion that contacts the backrest portion or the elbow contact portion; and a second contact portion that contacts an inner surface of the side wall. 3. The connecting member according to claim 1, further comprising a connecting member having a contact portion and a connecting portion that connects the first contact portion and the second contact portion in a stepwise manner. 4. The modular sofa described.
A pedestal having a concave portion for accommodating the convex portion of the seat mat,
And a position adjusting member that is accommodated in the concave portion and adjusts the accommodation position of the seat mat in the concave portion.
The seat mat is one in which two cushion members are accommodated in one cover and integrated.
The assembly according to any one of claims 1 to 4, wherein the cover has a separating portion that separates a region for accommodating one cushion material and a region for accommodating the other cushion material. Style sofa.
The assembled cushion according to claim 5, wherein the two cushion members are two cushion members having different hardnesses.
The assembly type sofa according to any one of claims 1 to 6, wherein a plurality of the pedestals are connected.
A prefabricated sofa that is assembled by connecting a pedestal and a backrest via a connecting member,
The connecting member has a hook-like portion at an end on the pedestal side,
The assembling sofa, wherein the pedestal has a frame for hooking the connecting member, and a gap is provided for accommodating the hook-like portion in a state where the connecting member is hooked on the frame. .
The connecting member,
A first contact portion that contacts the back contact portion, a second contact portion that contacts the frame, and a connecting portion that connects the first contact portion and the second contact portion in a stepwise manner. Has,
The said hook-shaped part is protruded from the edge part of the said 2nd contact part opposite to the said connection part side, and is provided so that it may oppose the said connection part, The Claims characterized by the above-mentioned. Assembling sofa.
The gap, when connecting the backrest and the pedestal,
The backrest is overlapped on the pedestal, at least a part of the connection member connected to the backrest is accommodated in the gap, and a gap is provided between the second contact part and the frame. From the provided first state,
The back contact portion is rotated about a contact portion between the connection member and the frame, and the connection member is hooked on the frame, and the second contact portion, the hook-like portion, and the frame are 10. The knockdown sofa according to claim 9, wherein the size is such that it can be brought into a second state in which the surfaces are in contact with each other.
The frame according to any one of claims 8 to 10, wherein the frame has a side wall protruding from a flat plate, and the gap is a depression provided in a part of a surface of the side wall. The modular sofa described.
The assembly type sofa according to claim 11, wherein the frame is formed of a hollow structure.
13. The knockdown sofa according to claim 12, wherein a block member is provided on the side wall.
The pedestal has a concave portion surrounded by a side wall protruding from the flat plate on at least one surface of the flat plate,
The assembly type according to any one of claims 8 to 13, further comprising a seat mat placed on the frame body and having a convex portion housed in the concave portion. sofa.
The seat mat has an upper cushion and a lower cushion connected to the upper cushion so as to protrude from the upper cushion, and a position of the lower cushion with respect to the upper cushion can be changed. The prefabricated sofa according to claim 14.