TWI740211B - Assembled sofa - Google Patents

Abstract

This case realizes an assembling sofa that is light in weight and does not occupy space, while being easy to assemble and having sufficient strength. The sofa has: a base; and a cushion placed on the base. The base has recesses on both surfaces of the flat plate, which are surrounded by side walls protruding from the flat plate, and the seat cushion has sub-pads accommodated in the recesses.

Description

Assembled sofa

The invention relates to an assembled sofa.

Patent Documents 1-3 describe an assembled sofa that is easy to transport and carry in. Since the sofa system described in Patent Documents 1-3 is an assembly type, it is possible to arrange whether there is a backrest, an elbowrest, the number of seats, etc. according to the user's preferences. In addition, Patent Document 4 describes a sofa using a metal pipe as a frame.

[Prior Technical Literature]

[Patent Literature]

[Patent Document 1] Japanese Public Utility Model Publication "Sho 56-128059"

[Patent Document 2] Japanese Published Utility Model Gazette "Shikai Hei 3-129349 (published on December 26, 1991)"

[Patent Document 3] Japanese Patent Publication "JP 2016-168320 A (published on September 23, 2016)"

[Patent Document 4] Japanese Patent Publication "Japanese Patent Laid-Open No. 10-276861 (published on October 20, 1998)"

In order to ensure the strength, the assembled sofa uses bulky and space-consuming components, so the efficiency of transportation and storage is not good, and the assembly is also complicated and difficult. Therefore, there is a need not only to be portable, not occupying space and easy to assemble, but also to be an assemblable sofa that ensures strength. The object of one aspect of the present invention is to provide an assemblable sofa that is portable, does not occupy space, is easy to assemble, and has components that ensure strength.

In order to solve the above problems, an assembling sofa of one aspect of the present invention includes: a base having recesses on both surfaces of a flat plate, the recesses being surrounded by side walls protruding from the flat plate; and a seat cushion placed on The base is provided with a convex part, and the convex part is accommodated in a concave part on a surface of one side of the base.

According to one aspect of the present invention, since there are recesses on both surfaces of the flat plate of the base, the recesses are surrounded by the side walls protruding from the flat plate, so the assembled sofa with the base is not only light and not occupying The space is easy to assemble and it also ensures strength.

10: Pedestal

11: side wall

12: recess

13: Connection part

13a: Connection part

13b: Connection part

14: recess

20: seat cushion

21: main pad

22: Sub-pad (convex part)

23: Lid

23a: accommodating part

23b: accommodating part

24: Isolation Department

30: Armrest

40: backrest

50: back cushion

60: Headrest

70: Feet

80: Position adjustment lever

91: Connecting components

91a: first contact

91b: second contact

91c: Connection Department

92: Connecting components

93: Connecting components

100: sofa

[Figure 1] is a schematic diagram showing an embodiment of the sofa of the present invention.

[Figure 2] is a schematic diagram showing the base of a sofa in an embodiment of the present invention.

[Fig. 3] is a schematic diagram showing a seat cushion of a sofa according to an embodiment of the present invention.

[Fig. 4] is a schematic diagram showing a position adjustment component of a sofa according to an embodiment of the present invention.

[Fig. 5] is a schematic diagram showing a cushion box of a sofa according to an embodiment of the present invention.

[Fig. 6] is a schematic diagram showing a connection component of a sofa in an embodiment of the present invention.

[Implementation Type 1]

In the following, referring to the drawings, a detailed description will be given for an implementation of the present invention. (A) in FIG. 1 is a perspective view showing the entire sofa; (b) in FIG. 1 is an exploded perspective view for explaining a part of (a) in FIG. 1. As shown in FIG. 1( a ), the sofa (assembled sofa) 100 includes a base 10 and a seat cushion 20. In addition, the sofa portion 100 may include an armrest portion (elbowrest portion) 30, a backrest portion 40, a backrest cushion 50, a headrest portion 60, a foot seat 70, and a position adjustment lever (position adjustment unit) 80. (A) in FIG. 1 shows the assembled state of the sofa 100. The sofa 100 is as shown in (b) in FIG. 1, which can be disassembled into various constituent components, and transported and carried in for each constituent component. Therefore, it is possible to carry in even if the carrying space is narrow. In addition, in this embodiment, for convenience of description, a two-seat sofa 100 connected to two bases 10 is taken as an example for description.

The base 10 is shown in (a)-(c) in FIG. 2 and has recesses on both surfaces of the flat plate, and the recesses are surrounded by side walls 11 protruding from the flat plate. The seat cushion 20 is placed on the base 10 for use, and is a component for the user to ride on. As shown in (a) and (b) of FIG. 3, the seat cushion 20 has a sub-pad 22 forming a convex portion, and a main cushion 21, and the convex portion is accommodated in the concave portion 12 on the surface of one side of the base 10. The sub pad 22 is arranged to protrude from the main pad 21. The details of the base 10 and the seat cushion 20 will be described in detail later.

The armrest portion 30 is used by being installed on the side wall 11 of the base 10, and is a component that supports the user's hands, arms, and the like. The backrest 40 is installed on the side wall 11 of the base 10 for use, and a backrest cushion 50 is placed on it, which is a component that supports the user's back and head. The armrest portion 30 and the backrest portion 40 are shown in Figure 4(a). They can be formed by covering the frame with a cover, or by covering the frame with a cushioning material and then covering the cover, so that the user's The arm or back will not feel pain when it is touched. The material of the frame of the armrest portion 30 and the backrest portion 40 is not particularly limited, and may be, for example, a metal frame such as steel that is easy to process. It is also possible to form holes for installing connection components in the armrest portion 30 and the backrest portion 40 to be connected to the base 10.

The backrest cushion 50 is placed on the backrest portion 40 for use, and is a component that supports the back of the user. The back cushion 50 has a cushion material, and may be formed of the same cushion material as the seat cushion 20. In order to prevent the position shift of the back cushion 50 generated on the back part 40, a position displacement preventing component such as a devil felt can be provided between the back cushion 50 and the back part 40.

The headrest part 60 is connected to the backrest cushion 50 for use, and is a component that supports the user's head. As the headrest portion 60, for example, a connecting rod attached to the headrest portion 60 may be inserted into the connection hole of the backrest cushion 50 to be assembled. The headrest portion can be formed by covering the cover body on the frame, or by covering the frame body with a cushioning material and then covering the cover body, so as to prevent the user from feeling pain when the head is touched. The frame material of the headrest 60 is not particularly limited, and may be a metal frame such as steel, for example.

The foot 70 is installed on the lower surface of the base 10 for use, and supports the base 10. The mounting number of the feet 70 is the number that can support the base 10. For example, it is better to mount the feet 70 on the four corners of the base 10 respectively. In addition, when a plurality of bases 10 are connected for use, in order to strengthen the support of the base 10, it is preferable to install a foot 70 between the bases 10 each other. In addition, when installed between the bases 10, the feet 70 can be installed on the connecting assembly connecting the bases 10 with each other.

The position adjusting rod 80 is used for being accommodated in the recess 12 of the base 10, and the position of the seat cushion 20 in the sofa 100 is adjusted by adjusting the position in the recess 12 of the seat cushion 20. The details of the position adjustment lever 80 will be described later.

The structure of the base 10 will be described with reference to FIG. 2. 2(a) is a perspective view of the base 10; FIG. 2(b) is a cross-sectional perspective view of the base 10; FIG. 2(c) is a cross-sectional view of the base 10. The base 10 includes a flat plate and a side wall 11 protruding from the flat plate, and has recesses on two surfaces of the flat plate sandwiching the base, wherein the recess is surrounded by the flat plate and the side wall 11. As shown in (a) of FIG. 2, the side walls 11 are arranged so as to protrude from the four sides of the rectangular base 10 respectively. The side wall 11 is preferably arranged to protrude from the end of the flat plate of the base 10 in the vertical direction, but as long as the recess is formed on the inner side of the side wall 11, it can also be arranged from the end of the flat plate. The inner part is more prominent.

(B) and (c) in FIG. 2 are cross-sectional views obtained by cutting the base 10 shown in (a) in FIG. (2) at the position of a one-point chain line. As shown in (b) and (c) of FIG. 2, the cross section of the base 10 has an H-shaped structure, and recesses 12 and 14 are formed on both surfaces of the flat plate of the base 10. That is, the base 10 has a recess 12 surrounded by a side wall 11 protruding from the upper surface of the flat plate thereof, and a recess 14 surrounded by the side wall 11 protruding from the lower surface of the flat plate. The side wall 11 protruding from the upper surface of the base 10 and the side wall 11 protruding from the lower surface may be formed continuously or independently. In addition, the flat plate of the base 10 and the side wall 11 can be separately formed separately and then connected, but it is better to be integrally formed.

By forming the concave portion 12 and the concave portion 14 surrounded by the side wall 11 on the flat plate of the base 10, the bending moment or shearing force is increased compared with the simple plate-shaped body without the side wall 11, thus making it possible to prevent For example, deformation such as twisting or bending. As a result, the strength of the base 10 can be ensured. In addition, since the base 10 is light and does not occupy space and is easy to assemble, it is possible to save transportation costs, time for carrying in and assembling, and reducing labor burden (short-time delivery). In other words, the sofa 100 series The recessed portion 12 and the recessed portion 14 surrounded by the side wall 11 are formed on the flat plate of the base 10, so that an assembled sofa with a base can be realized, which is light and does not occupy space, is easy to assemble, and ensures strength.

By having the recess 12, the seat cushion 20 can be fixed only by accommodating the sub-pad 22 in the recess 12 to prevent positional deviation, wherein the sub-pad 22 is a protruding part of the seat cushion 20. Therefore, it is easy to assemble the sofa 100. In addition, by having the concave portion 12, it is possible to easily change the position of the seat cushion 20 in the depth direction according to the user's preference by simply accommodating the position adjustment rod 80 described later in the concave portion 12. In addition, the seat cushion 20 can be thickened, and the degree of thickening is compared with the depth of the recess 12, that is, the thickness of the sub-cushion 22, so the ride comfort can be improved.

The strength of the base 10 can be improved by having the recess 14. In addition, the bottom surface of the recess 14, that is, the bottom surface of the base 10 may have a wavy structure having a plurality of unevennesses. Thereby, the upper plane of the base 10 can be supported by the concave-convex shape, and the downward bending can be suppressed, and the deformation of the flat plate of the base 10 can be further suppressed. As a result, the strength of the base 10 can be further improved. In addition, the recess 14 can accommodate the compressed seat cushion 20 or the back cushion 50, and can be compactly packaged and reduce transportation costs. When the sofa 100 is in use, the base 10 is covered by the cover, but the cover on the side of the recess 14 can also be opened and closed, so that the seat cushion 20 or the back cushion 50 can be accommodated.

The base 10 can be made of metal such as steel, but can also be formed of resin, glass fiber, cellulose, and the like. In addition, as shown in (b) of FIG. 2, if the base 10 is a hollow structure, it is easy to reduce weight, carry, and assemble. The base 10 may also be a hollow resin body. For example, the hollow resin body may be formed by blow molding. The base 10 of a hollow resin body formed by blow molding is easier to manufacture than a base made of processed wood.

The side wall 11 of the base 10 is provided with a connecting portion 13, which is used to connect a plurality of bases 10 and to connect the base 10 with the armrest portion 30 and the backrest 40. The side wall 11 is provided with a connecting portion 13 The connecting portion 13a and the connecting portion 13b are provided on the side when the sofa 100 is assembled; the connecting portion 13b is provided on the back side when the sofa 100 is assembled.

The connecting portion 13a is used to connect the armrest portion 30 to the base 10 and is also used to connect a plurality of bases 10. In other words, the connecting portion 13a is used for both the purpose of connecting the arm rest portion 30 and the purpose of connecting the bases 10 to each other. The connecting portion 13b is used to connect the backrest portion 40 to the base 10. The shape of the connecting portion 13 only needs to be a connecting component that can be installed to connect to other components, for example, a hole for screwing the connecting component can be formed. In addition, the connecting portion 13a and the connecting portion 13b may have the same shape. In addition, in the base 10, not only the side wall 11 on the side of the recess 12, but also the side wall 11 on the side of the recess 14 may be formed with holes for installing connecting components; or holes for installing the feet 70. The details of the connecting component for connecting another component to the base 10 will be described later.

The details of the seat cushion 20 will be described with reference to FIG. 3. (A) in FIG. 3 is a perspective view of the seat cushion 20. (B) in FIG. 3 is a side view of the seat cushion 20. As shown in Fig. 3 (a) and (b), among the seat cushion 20, the main cushion 21 is formed to protrude from the sub cushion 22, and the sub cushion 22 as a convex portion is accommodated in the concave portion 12 of the base 10 .

The seat cushion 20 may be composed of a cushioning material in which the main cushion 21 and the sub cushion 22 are integrated. In addition, the main pad 21 and the sub-pad 22 may each be a separate cushioning material, and a seat pad 20 is formed by being accommodated in a cover 23 described later. The cushioning material used as the seat cushion 20 does not need to be particularly limited, and for example, molded urethane may be mentioned.

When assembling the sofa 100, the main cushion 21 has a shape that thickens and bulges from the end on the backrest portion 40 side to the end on the opposite side. The sub-pad 22 is in a shape that is accommodated in the recess 12 of the base 10. However, it is preferable to make the sub-pad 22 smaller than the recess 12 at least as large as the size of the position adjustment lever 80, so that the position can be adjusted. The size of the rod 80 is adjusted to adjust the position in the recess 12 of the sub-pad 22.

The main pad 21 and the sub-pad 22 can also be formed by cushioning materials with different hardnesses. For example, the sub-pad 22 used to prevent the positional deviation of the seat cushion 20 is made of a harder cushioning material; the main cushion 21 of the part where the user sits is made of a softer cushioning material. In the case of using molded urethane as a cushioning material, a high-density molded urethane can be used as the sub-pad 22, and a low-density molded urethane can be used as the sub-pad 22. As the main pad 21. In addition, the seat cushion 20 may also have urethane chips on the side where the main cushion 21 becomes the seating surface. In addition, an independent cylindrical spring can also be used as a cushioning material, for example, a molded urethane is used as the main pad 21, and an independent cylindrical spring is used as the sub-pad 22. When an independent cylindrical spring is used as the sub-pad 22, the recess 12 is a accommodating part of the independent cylindrical spring. In this way, by forming the seat cushion 20 with a plurality of cushioning materials with different hardnesses, a sofa with an excellent sitting feeling can be provided.

The adjustment of the position of the seat cushion 20 by the position adjustment lever 80 will be described with reference to FIG. 4. (A) in FIG. 4 is a perspective view showing the sofa 100 with the concave portion 12 exposed; (b) and (c) in FIG. 4 are side views showing the state of use of the position adjustment lever 80. When the depth of the sofa is in line with the average size of men, when women of average size are riding, there will be problems with their feet hanging in the air or insufficient back cushioning support. In addition, when the depth of the sofa is in line with the average body shape of women, the feet may come out too much from the sofa when a man of average body size is allowed to ride. Like this, the depth of ride comfort varies according to the user's body type. In order to solve such a problem, the sofa 100 can adjust the depth of the sofa by the position adjustment rod 80.

As shown in (a) of FIG. 4, the position adjusting rod 80 is a block-shaped body, which extends in the recessed portion 12 along the direction of the backrest portion 40. As shown in Figure 4(b), if the position adjustment lever 80 is arranged on the last side of the recess 12, that is, on the side of the backrest 40, the sub-pad 22 will move away from the backrest 40 in the recess 12 When moving sideways, the moving distance is compared with the width of the position adjusting rod 80. Accordingly, the main pad 21 protrudes to the outside of the base 10 The degree of protrusion is compared with the width of the position adjusting rod 80. On the other hand, as shown in Figure 4(c), if the position adjustment lever 80 is provided on the foremost side of the recess 12, that is, on the side away from the backrest 40, the sub-pad 22 will lean against the back of the recess 12 The portion 40 moves, and the distance moved is compared with the width of the position adjustment rod 80.

According to this, the main cushion 21 is retreated to the backrest 40 side, and the retreat distance is compared with the width of the position adjustment rod 80, and the portion protruding from the base 10 is reduced. In this way, since the position of the seat cushion 20 can be adjusted only by setting the position adjustment lever 80, and thus the depth of the seat surface of the sofa can be adjusted, the ride comfort of the user can be easily improved.

The position adjustment lever 80 is located on the lower side of the main cushion 21, and in order to impart an influence on the ride comfort of the user, it is preferably formed of a cushioning material. The position adjustment rod 80 can be formed of the same material as the seat cushion 20, for example, it can be molded urethane, or it can also be a rigid foam.

The cover 23 of the seat cushion 20 will be described with reference to FIG. 5. (A) in FIG. 5 is a side view showing a state where a part of the cover 23 of the seat cushion 20 is opened, and (b) in FIG. 5 is a side view showing when the cover 23 of the seat cushion 20 is opened larger Perspective view. The cover body 23 accommodates the two cushioning materials of the main cushion 21 and the sub cushion 22 in a cover body, thereby integrating the seat cushion 20 into one body. The cover 23 has an accommodation portion 23 a and an accommodation portion 23 b. The accommodation portion 23 a accommodates the main pad 21; the accommodation portion 23 b accommodates the sub pad 22. In addition, the accommodating portion 23a and the accommodating portion 23b are isolated by the isolation portion 24. The sub-pad 22 is accommodated in the cover 23 in a manner protruding from the main pad 21.

The cover 23 can be opened and closed by a zipper, and the main cushion 21 can be accommodated in the accommodating portion 23a by opening the zipper provided along the outer circumference of the main cushion 21. In addition, as shown in FIG. 5(b), when the zipper provided along the outer periphery of the main pad 21 of the cover body 23 is opened, an accommodation portion 23b is formed through the partition portion 24. By opening the zipper provided near the center of the isolation portion 24, the sub-pad 22 can be accommodated in the accommodating portion 23b.

In this way, the cover 23 has a double-layer structure that can separate the main pad 21 and the sub-pad 22 separately. In addition, by accommodating the main pad 21 and the sub-pad 22 in each accommodating space of the cover 23, The seat cushion 20 can be formed in one piece. Accordingly, the position shift between the main pad 21 and the sub pad 22 is prevented, and the shape of the sub pad 22 protruding from the main pad 21 is maintained.

Referring to FIG. 6, the connecting assembly is described, which is used to connect another assembly to the base 10 and to connect a plurality of bases 10. (A) in FIG. 6 is a perspective view illustrating the connecting assembly; (b) and (c) in FIG. 6 are perspective views illustrating the connection state of the connecting assembly. As shown in Fig. 6 (a)-(c), the sofa 100 can be assembled by three connecting components 91-93.

As shown in (b) and (c) in FIG. 6, the connecting assembly 91 is formed by connecting the arm rest 30 or the back rest 40 to the base 10. The connecting assembly 91 has a first contact portion 91a, a second contact portion 91b, and a connecting portion 91c. The first contact portion 91a is in contact with the armrest portion 30 or the backrest portion 40; the second contact portion 91b is in contact with the base The surface of the inner side of the side wall 11 of 10 is in contact; the connecting portion 91c connects the first contact portion 91a and the second contact portion 91b in a stepped manner.

When connecting the armrest portion 30 or the backrest portion 40 to the base 10, first, the first contact portion 91a is brought into contact with the armrest portion 30 or the backrest portion 40, for example, the connecting assembly 91 is installed to the arm by screwing. The backrest 30 or the backrest 40. Then, the second contact portion 91b is brought into contact with the inner surface of the side wall 11 of the base 10 and the engaging 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 of the connecting component 91 are connected stepwise via the connecting portion 91c, the connecting component 91 can be hooked on the side wall 11.

By hooking the connecting assembly 91 on the side wall 11, the positioning of the connecting assembly 91 can be easily performed. In addition, even if the user does not support it by hand, the armrest 30 or the backrest 40 can be prevented from falling and temporarily fixed to the base 10. In addition, in a state where the armrest portion 30 or the backrest portion 40 is temporarily fixed to the base 10, the second contact portion 91b or the engagement portion 91c is arranged on the base 10 in a screw-fastened manner, for example, The armrest 30 or the backrest 40 can be easily connected to the base 10. In this way, by making the base 10 With the side wall 11, it is easy to connect the arm rest 30 or the back rest 40, and the connection is supported to improve the connection strength.

When a plurality of bases 10 are connected and the connecting assembly 92 is used, the connecting assembly 92 is used to connect the bases 10 to each other. As shown in (c) of FIG. 6, the connecting assembly 92 connects the lower surface between the two bases 10. A hole may also be formed in the connecting assembly 92, which is used to mount the foot 70 in a screwing manner, for example.

The connecting assembly 93 is used to strengthen the connection between the base 10 and the armrest portion 30 or the backrest portion 40, and to strengthen the connection between the plurality of bases 10 with each other. As shown in (b) of FIG. 6, the connecting assembly 93 strengthens the connection between the lower surfaces of the bases 10 made by the connecting assembly 92 by connecting the upper surfaces between the two bases 10. In addition, as shown in FIG. 6(c), the connecting assembly 93 connects the base 10 with the lower surface of the armrest portion 30 or the backrest portion 40 to reinforce the base 10 and the base 10 made by the connecting assembly 91 The upper surface of the armrest 30 or the backrest 40 is connected.

As described above, the sofa 100 connects the components constituting the sofa 100 and assembles them for use, and the user can freely select the combination of components to be connected. Therefore, it is also possible to place the seat cushion 20 on the base 10 and install only the foot seat 70 to be used as a so-called footrest. In addition, since the number of connecting bases 10 is not limited, two bases 10 can be connected to form a 2-seater sofa, three bases can also be connected to form a 3-seater sofa, or more than 4 can be connected The pedestal 10. In addition, it can be selected whether there is a connecting arm back portion 30, whether there is a connecting backrest portion 40, and whether there is a connecting headrest portion 60 or not. In addition, various selections can be made on the design of various components such as the armrest portion 30, the height of the foot base 70, and the like.

The present invention is not limited to each of the above-mentioned embodiments, and various changes can be made within the scope shown in the claim. The embodiments obtained by appropriately combining the technical means disclosed in the different embodiments are also included in the present invention. Within the scope of technology.

10: Pedestal

20: seat cushion

30: Armrest

40: backrest

50: back cushion

60: Headrest

70: Feet

80: Position adjustment lever

100: sofa

Claims (7)

An assembled sofa, comprising: a base, which includes a flat plate and side walls protruding from the flat plate, and has recesses on both surfaces of the flat plate sandwiching the base, wherein the recesses are formed by the flat plate and The side wall is surrounded by; and the seat cushion is placed on the base and has a convex portion that is accommodated in a concave portion on a surface of one side of the base. An assembled sofa, comprising: a base, which includes a flat plate and side walls protruding from the flat plate, and has recesses on both surfaces of the flat plate sandwiching the base, wherein the recesses are formed by the flat plate and The side wall is surrounded; and the seat cushion is placed on the base and has a convex portion that is accommodated in a concave portion on a surface of one side of the base; wherein the base is hollow The structure is formed. The assemblable sofa according to claim 1 or 2, which is provided with a connection component, and the connection component has: a first contact portion that connects the base to at least one of a backrest portion and an elbowrest portion, and contacts The backrest portion or the elbowrest portion; a second contact portion contacting the inner surface of the side wall; and a connecting portion connecting the first contact portion and the second contact portion in a stepped manner. An assembled sofa, comprising: a base with a concave portion for accommodating the convex portion of a seat cushion; The position adjustment component is accommodated in the concave portion and adjusts the accommodating position of the seat cushion in the concave portion. The assembled sofa according to any one of claims 1, 2, and 4, wherein the seat cushion is formed by accommodating two cushioning materials in a cover and is integrated, and the cover has isolation The isolation portion separates the area accommodating one of the two cushioning materials from the area accommodating the other of the two cushioning materials. The assembled sofa according to claim 5, wherein the two cushioning materials are two cushioning materials with different hardness. The assembled sofa according to any one of claims 1, 2, and 4, wherein the base is a plurality of connections.

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