Combination sofa furniture with enhanced versatility
The modular sofa system, featuring interchangeable square sofa chairs, addresses the lack of versatility and ease of assembly in traditional sofa designs by allowing users to customize the layout and function of their sofa, while maintaining design integrity and aesthetic appeal.
Patent Information
- Application Number
- JP2024004432U
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-05-08
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Existing sofa designs lack versatility and ease of assembly, often requiring complex connection mechanisms that increase manufacturing costs and user dissatisfaction, while also limiting the ability to combine chairs and sofas in various configurations.
A modular sofa system comprising four types of square sofa chairs (ottoman, partial chair, Conner-like, and long sofa) made from thick wooden plates, allowing for easy assembly and reconfiguration to serve as a single chair, connecting sofa, or simple bed, while maintaining design integrity.
The modular sofa system provides enhanced versatility and ease of assembly, allowing users to customize the layout and function of their sofa, while maintaining aesthetic appeal and durability, thus addressing the limitations of traditional sofa designs.
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Abstract
Description
[Technical field]
[0001] This invention relates to a combination sofa furniture that is a large, connectable, low-seat sofa that enhances the versatility of supporting rest by connecting and combining an ottoman sofa type, a partial chair type, a corner-shaped chair type, and a longitudinal sofa type. [Background technology]
[0002] As is well known, in recent years, sofas have become widely used in which the backrest and armrests are made as separate parts from the main body of the furniture that functions as both a chair and a sofa, and the armrests at both ends can be attached or detached depending on the purpose of use, while still retaining the functionality of a sofa.
[0003] A sofa piece of furniture has been proposed that is a combination of a heart-shaped body, a crescent-shaped body, and a rice scoop-shaped body, with a simple structure for assembling the sofa body, which can be moved and assembled freely to satisfy various functions of the sofa and can easily be changed to suit the purpose.The circular parts of each body have a diameter of 800 to 1000 mm, the V-shaped parts of the heart-shaped body can be tightly joined to various parts of the circular parts of the other bodies, and the sofa part is 300 to 400 mm thick and has a connected two-tier shape, with the upper and lower tiers forming an equal connected body, the upper tier being a cushion body and the lower tier forming a box body with a spring, with the lower tier being narrower than the upper tier.The sofa is a set of three connected circular bodies (see Patent Document 1).
[0004] In addition, the sofa structure required a connecting mechanism such as rail members and hook members with complex shapes, which not only increased manufacturing costs, but also caused dissatisfaction for users, such as the need to request repairs or replacement of parts when the connecting mechanism broke down. A sofa has been proposed in which the seat surface is formed into an external shape such as a polygon, circle, or oval when viewed from above, and a seating section is provided along part of the outer periphery of the sofa seat surface, which is higher than the seat surface so that a person can sit down on it, and a backrest body that functions as a backrest for the sofa seat surface is provided in front of the seating section so that it can be moved (see Patent Document 2).
[0005] In order to provide a sofa that is aesthetically pleasing and easy to assemble, the sofa has a seat supported by a seat support frame and a back fixed to a back support frame. The back includes a back body (back base), a back cushion material placed in front of it, and a bag-shaped back upholstery. The back support frame has upper and lower bosses protruding forward, and the back body is fixed to the back support frame by bolts screwed into the bosses from the front. An opening that can be opened and closed with a slide fastener is formed at the lower end of the back upholstery, and the opening is closed when the back body is fixed. It has been proposed to be used by placing it on a chair or sofa (see Patent Document 3).
[0006] In the above conventional sofa, when the armrests are removed from the sofa body, the metal fittings on the sides are exposed, which significantly impairs the interior decoration of the sofa.A sofa has been proposed that has a seating section and a backrest section erected upward on one side of the seating section, in which a part near one end of the seating section is made into a reclining section, and the reclining section is rotated around a connection point with another seating section, and is supported in an inclined state relative to the other seating section (see Patent Document 4).
[0007] As an easy-to-assemble sofa that promotes diversity in design specifications, simplifies delivery, and simplifies assembly, a sofa is divided into parts such as a seat, backrest, arms, corners, and cushions, and the end user can choose the design and surface color of the sofa, such as round or square, by combining the parts. A multi-cover with an anti-slip fixing body attached can be fixed to the sofa, and the fixing body has a cylindrical or rectangular core that is removably stored in a bag or a hollow fabric (see Patent Document 5).
[0008] There is no large connected sofa that brings diversity, and there is a demand for sofas that can be divided into four sections and used alone, or assembled into 2 to 4 pieces to be suitable for resting as a chair or sofa, but there are not many of them. Generally, sofas are shown with two chairs lined up and placed at both ends. It is a state that does not show sufficient functionality. There are almost no sofas that can be combined in various ways to set up the chair and sofa in a desired position. [Prior art documents] [Patent documents]
[0009] [Patent Document 1] _Utility Model Registration No. 3216006 [Patent Document 2] JP 2004-174087 A [Patent Document 3] _Patent Publication No. 2024-6057 [Patent Document 4] Japanese Patent Application Publication No. 6-86723 [Patent Document 5] _Utility Model Registration No. 3209841 Summary of the Invention [Problem to be solved by the invention]
[0010] The present invention has been made in consideration of the above-mentioned problems, and its object is to provide a set of chairs and sofas which are connected to each other, and which have a simple structure for assembling a large chair and sofa, and which allows the sofa itself to be freely moved, assembled and changed, and which can fulfill various functions such as a sofa and a bed, and which can be used as a standalone chair, a connected sofa or a simple bed in a relaxing state to provide a position of mental and physical rest for the body, and which can be appropriately installed and used in a room, either alone or connected together, even if it is a large piece of furniture.
[0011] To provide a rectangular four-piece connected sofa set that can be attached to a desired position and that can be changed according to the layout of a room, without compromising the overall design of the chairs and sofa before assembly, and that has a decorativeness that can be fully used as an interior design, by changing the position of the chairs and sofas individually according to the layout of the room, and that can be easily changed according to the layout of the room. [Means for solving the problem]
[0012] A large low-seat sofa that can be connected to four different types of square sofa-type chairs. Each square sofa-type chair is made of thick board material with a thickness of 20 to 50 mm and a width of 100 to 150 mm, and the dimensions of the wooden frame are a square or rectangular chair-like body with a width of 800 to 1000 mm, a length of 800 to 1300 mm, and a seat height of 200 mm. The four various combinations of connected sofa types are the same in width and seat height, including an ottoman sofa type with no backrest, a partial chair type with a backrest in one place, a corner-shaped chair type with backrests in two places, and a longitudinal sofa type with backrests in two places. Of these four pieces, the sofa and chair can be used alone or 2 to 4 can be connected to create a single chair for relaxation, a connected sofa, or a simple bed for mental and physical relaxation. This is a three-dimensional combination sofa furniture that can be used independently or connected to create a versatile piece of large furniture that can be appropriately installed in a room.
[0013] The chair-like bodies of the four wooden frameworks - an ottoman sofa type with no backrest, a partial chair type with one backrest, a corner-shaped chair type with two backrests, and a longitudinal sofa type with two backrests - are made of Allnut thick boards 20-50mm thick and 100-150mm wide, and are three-dimensional rectangular shapes of 800-1000mm wide, 800-1300mm long, and 200mm seat height, with a square and a rectangle, and a backrest of 800-1000mm wide and 300-400mm high, placed on one or two of the rectangular seat surfaces. The seat back is attached at a right angle or an inclined surface at an angle of 90 to 110° to the seat surface, and several lattice members made of square boards or several lattice members made of square boards with an inclination angle of 10 to 20° are formed in the lattice shape of the auxiliary wooden skeleton of the backrest, and these are attached as right angles or inclined surfaces in the space of the rectangular backrest. A square or rectangular bag-shaped body with a thickness of 150 to 300 mm containing shock-absorbing cushioning material made of cloth, leather or synthetic leather is placed or laid on the backrest surface to which the lattice members are attached.
[0014] They are effective for mentally and physically resting the body by being made into a single chair for relaxing, a connected sofa, or a simple bed, and even large furniture can be installed in a room of an appropriate size either alone or by connecting them. When used alone, they come in various types, such as an ottoman sofa type without a backrest, a low-seat chair with a backrest in one place, a conner-shaped chair type with a backrest in two places and an armrest on one side and a low-seat chair, and a long sofa type with a backrest in two places that allows you to stretch your body out and rest. By connecting and combining three or four sofa and chair bodies, they can be assembled into a sofa for a family of several people to gather together or a simple resting bed.
[0015] The cushion section to be placed on the upper surface of the seat and the surface of the cushion section for the backrest are made of cloth, leather or synthetic leather and are made of a square bag-shaped body containing a shock-absorbing cushioning material, and are filled with a cushioning material selected from cotton, feathers, polyester cotton and urethane foam to enhance the cushioning properties. The cushion section to be placed on the backrest is 1 to 3 square or rectangular cushion sections with a width of 800 to 1000 mm, a length of 800 to 1200 mm and a height of 200 to 300 mm. The cushion section to be placed on the surface of the seat is made of cloth, leather or synthetic leather, has a sense of stability so that it can serve as a sofa rug, is filled with a cushioning material selected from cotton, feathers and urethane foam, and can be freely removed and moved. Effect of the Invention
[0016] The four chairs and sofas can be assembled in various ways according to purpose and preference, and the position can be easily changed, resulting in a sofa that fully fulfills its function. The large chair and sofa body can also be placed in a preferred position, and the position of the sofa can be changed depending on the pattern of the room, so the design of the connected sofa as a whole is not marred, and the sofa has a decorativeness that is durable enough for interior design. By combining the sofa and chair bodies alone, or by connecting 2 to 4 of them, the seat height of the sofa can be relatively low, and it can be turned into a single chair, a connected sofa, or a simple bed in a relaxing shape, allowing the body to rest both mentally and physically, so that even large furniture can be appropriately installed and used in a room, either alone or connected together.
[0017] The sofa section, backrest section and cushion section are supported on an inclined surface, so that the movable chair or sofa body can be effectively used as interior decoration. The cushion section can be removed to make the chair or sofa compact, and when the chair or sofa body becomes dirty or damaged, the chair, sofa section and backrest section can be washed, repaired or replaced, which is very convenient. Recently, the seat height of sofas has been relatively low, and the flexibility of the sofa shape is important, and sofas that can be adapted to various designs and uses by users' selection of armrests with different shapes and functions are desired. However, the conventional sofa modification structures were all complicated and were not satisfactory to both manufacturers and users. Moreover, many of them damage the interior decoration of large chairs and sofas alone, which has given the current decorative value of large chairs and sofas. [Brief description of the drawings]
[0018] [Figure 1] FIG. 1 is an overall perspective view showing a combination sofa furniture with enhanced versatility. [Diagram 2] A perspective view of four large chairs and large sofas of a combination sofa furniture with enhanced versatility. A: Ottoman sofa type B: Partial chair type C: Corner chair type D: Long sofa type [Diagram 3] A diagram showing the state of the cushion of the combination sofa furniture with increased versatility. A: A schematic perspective view and a cross-sectional view of the backrest cushion part. B: A schematic perspective view and a cross-sectional view of the seat cushion part. [Figure 4] This is a diagram showing the specific sofas of various combinations of the combination sofa furniture with enhanced versatility. A: 4-linked family type B: 2-linked comfort sofa type C: 3-linked reclining type D: 2-linked reclining type [Diagram 5] This is a diagram of the basic chair body with a low seat height and a distinctively inclined backrest for a combination sofa furniture with enhanced versatility. A: Corner-shaped chair type B: Corner-shaped chair type backrest C: Long sofa type D: Backrest square material [Figure 6] This is a combination sofa furniture that has been designed to enhance versatility, and shows various combinations (four pieces) of chair and sofa bodies with a distinctively inclined backrest. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0019] The following is a more detailed explanation of the present invention based on Fig. 1 to Fig. 6, which specifically show an embodiment of the present invention. The items indicated in the figures are the chair body and the sofa part. In addition, in this embodiment, the structure is designed to be comfortable to sit on and to support the sofa at a specified seating height. EXAMPLES
[0020] As shown in Figure 1, in the large low-seat sofa, which can be connected to four different types of square sofa-type chairs, each square sofa-type chair is made of thick board material with a thickness of 30 mm and widths of 100 mm and 150 mm. The dimensions of the wooden frame are 850 mm in width, 870 mm and 1300 mm in length, and 210 mm in seat height. The chair-like body is a square or rectangular chair-like body, and is available in three types: an ottoman sofa type with no backrest, a partial chair type with a backrest in one place, and a corner-shaped chair type with a backrest in two places. The sofa type is a combination of four connected sofas with the same width and seat height, consisting of a single sofa type and a longitudinal sofa type with two backrests. The sofa and chair bodies of the combination of these four pieces can be used alone or connected in combination of 2 to 4 pieces to create a single chair for relaxation, a connected sofa, or a simple bed for mental and physical relaxation. This is a combination three-dimensional sofa furniture that has increased versatility as it can be appropriately installed in a room by being used alone or connected together even though it is a large piece of furniture.
[0021] The four models, namely the ottoman sofa type with no backrest, the partial chair type with one backrest, the corner-shaped chair type with two backrests, and the longitudinal sofa type with two backrests, are made of Allnut thick boards with a thickness of 30 mm, widths of 100 mm and 150 mm, and are 850 mm wide, 870 mm long and 1300 mm long, with a seat height of 210 mm, and are either a square or a rectangular three-dimensional rectangular shape. The backrest portion of 2.5m is attached to one and two points on the rectangular seat surface, the backrest surface is made at an angle of 90 degrees to the seat surface as a right angle, and three lattice members made of square boards are formed into a lattice shape of the auxiliary wooden skeleton of the backrest portion, and are attached at an angle with cushioning material to the space in the rectangular backrest portion as right angle surfaces.A square or rectangular bag-shaped body of 200mm thickness containing shock-absorbing cushioning material made of cloth is placed or laid on the backrest surface to which the lattice members are attached.
[0022] As shown in Figure 2, it can be made into a single chair for relaxing, a connected sofa, or a simple bed, which is effective for mentally and physically resting the body, and even large furniture can be installed in a room of an appropriate size either alone or by connecting them. As shown in Figure 3, when used alone, there is the ottoman sofa type which does not have a backrest, a low seat chair with a backrest in one place, a conner-shaped chair type with a backrest in two places and an armrest on one side and a low seat height, and a long sofa type with a backrest in two places that allows you to rest by stretching your body out horizontally. By connecting and combining four sofa bodies and chair bodies, it can be assembled into a sofa for a family of four as shown in Figure 1, or a simple rest bed.
[0023] As shown in Figure 4, the cushion part placed on the top surface of the seat and the surface of the cushion part for the backrest are made of cloth and are in the shape of a square bag containing a shock-absorbing cushioning material. In order to enhance the cushioning effect, the inside is filled with cotton, feathers and foamed urethane cushioning material as shown in Figure 3. The cushion part placed on the backrest is 860mm wide, 870mm and 1200mm long, and has three rectangular cushion parts with a thickness of 200mm. The cushion part placed on the surface of the seat is made of cloth to give it a sense of stability so that it can serve as a sofa mat, and is filled with cotton, feathers and foamed urethane cushioning material, and can be removed and moved freely. It was possible to create various combinations of sofa and chair bodies as shown in Figure 4. This created a state of togetherness, rest and comfort. EXAMPLES
[0024] As shown in Figure 5, in this large low-seat sofa, which can be connected to four different types of square sofa-type chairs, each square sofa-type chair is made of Allnut thick boards with a thickness of 25 mm and a width of 150 mm, and the dimensions of the wooden frame are 840 mm wide, 840 mm and 1200 mm long, and the seat height is 210 mm. The four chairs are connected to each other and have the same width and seat height, and are an ottoman sofa type with no backrest, a partial chair type with a backrest in one place, a corner-shaped chair type with backrests in two places, and a longitudinal sofa type with backrests in two places. These four pieces can be used as a sofa and chair body alone, or two to four pieces can be connected to create a single chair for relaxation, a connected sofa, or a simple bed for mental and physical relaxation. This makes it a versatile combination three-dimensional sofa furniture that can be used alone or connected to appropriately set up in a room, even though it is a large piece of furniture.
[0025] As shown in Fig. 6, the four models, the ottoman sofa type with no backrest, the partial chair type with one backrest, the corner-shaped chair type with two backrests, and the longitudinal sofa type with two backrests, are made of Allnut planks 25 mm thick and 150 mm wide, and are constructed in a three-dimensional rectangular shape with a width of 840 mm, heights of 840 mm and 1200 mm, and a seat height of 210 mm. The backrest portion is attached to one or two points on the rectangular seat surface, with the backrest surface inclined at an angle of 110° to the seat surface, and ten lattice members with square boards inclined at an angle of 20° are formed in the lattice shape of the auxiliary wooden skeleton of the backrest portion, and these are attached as inclined surfaces at spatial positions in the rectangular backrest portion.A 200mm thick square and rectangular bag-shaped body containing shock-absorbing cushioning material made of cloth is placed and laid on the backrest surface to which the lattice members are attached.
[0026] The sofa body can be made into a single chair for relaxing, a connected sofa, or a simple bed, which is effective for mentally and physically resting the body, and even large furniture can be installed in a room of an appropriate size either alone or by connecting them. When used alone, the sofa body can be assembled into an ottoman sofa type without a backrest, a low seated chair with a backrest in one place, a conner-shaped chair type with a backrest in two places with an armrest on one side and a low seated height, a long sofa type with a backrest in two places as a rest chair where the body can be stretched out horizontally to rest, or a sofa body for family get-togethers or a simple resting bed by connecting and combining three or four sofa bodies and chair bodies.
[0027] The cushion section placed on the top surface of the seat and the surface of the cushion section for the backrest are made of cloth and are square bags containing shock-absorbing cushioning material, and the inside is filled with polyester cotton and urethane foam to enhance cushioning properties. The cushion section placed on the backrest consists of two rectangular cushion sections, one square and one rectangular, measuring 800mm wide, 800mm and 1000mm long, and 200mm high. The cushion section placed on the surface of the seat is made of cloth, leather, or synthetic leather, and is filled with cotton, feathers and urethane foam to give it a sense of stability and serve as a sofa rug, and can be removed and moved freely. [Explanation of symbols]
[0028] 1 sofa body 2 Chair body 3. Cushion surface material (cloth, leather, synthetic leather) 5 Knee pad 6 legs 7 Backrest 8 Cushion 9 Ottoman sofa type 10 Partial chair type 11 Corner-shaped chair type 12 Long sofa type 13 Seat part 14 Skeletal wood 15 Seat back grille material 16 Supplementary skeletal wood body 17 Backrest panel material 18 Slope 19 Horned pouch 20 Seat surface 21 Right angle surface 22 Supporting skeletal wood body 23 Backrest cushion 24 Seat cushion 25 4-way family room type 26 2-piece comfortable sofa set 27 3-linked lying type 28 2-linked lying type 29 Cotton 30 feathers 31 Urethane foam
Claims
1. In a large low-seat height sofa that can be connected to four different types of square sofa-type chairs, each square sofa-type chair is made of a thick board material with a thickness of 20 to 50 mm and a width of 100 to 150 mm, and the dimensions of the skeleton wooden body are a square or rectangular chair-like body with a width of 800 to 1000 mm, a length of 800 to 1300 mm, and a seat height of 200 mm. The four various combinations of connected sofa types are an ottoman sofa type that does not have a backrest, a partial chair type that has a backrest in one place, a corner-shaped chair type that has a backrest in two places, and a longitudinal sofa type that has a backrest in two places, and have the same width and seat height. Among these four bodies, the sofa body and chair body can be used alone or two to four bodies can be connected and combined to create a single chair for relaxation, a connected sofa, or a simple bed for mental and physical relaxation and relaxation, and the three-dimensional combined sofa furniture with enhanced versatility is characterized in that even large furniture can be used alone or connected to be appropriately installed in a room.
2. The chair-like bodies of the four wooden frameworks - an ottoman sofa type with no backrest, a partial chair type with one backrest, a corner-shaped chair type with two backrests, and a longitudinal sofa type with two backrests - are made of Allnut thick boards 20 to 50 mm thick and 100 to 150 mm wide, and are configured as three-dimensional rectangular shapes of square and rectangular shapes with a width of 800 to 1000 mm, a length of 800 to 1300 mm, and a seat height of 200 mm. A backrest part with a width of 800 to 1000 mm and a back height of 300 to 400 mm is attached to one or two places on the rectangular seat surface, and the backrest is tilted against the seat surface. The combination sofa furniture with increased versatility described in claim 1 is characterized in that the surface of the seat back is attached by selecting a right angle surface or an inclined surface at an angle of 90 to 110 degrees, several lattice members made of square boards or several lattice members made of square boards with an inclined surface of 10 to 20 degrees are formed in the lattice shape of the auxiliary skeleton wooden body of the backrest, and are attached as right angle surfaces or inclined surfaces in the space of the rectangular backrest, and a square or rectangular bag-shaped body made of cloth, leather, or synthetic leather with a thickness of 150 to 300 mm and containing a shock-absorbing cushioning material is placed or laid on the surface of the backrest to which the lattice members are attached.
3. The combination sofa furniture with enhanced versatility according to claim 1 or 2, characterized in that it can be assembled into a single chair for relaxing, a connected sofa, and a simple bed, which is effective for mentally and physically resting the body, and even large furniture can be installed in a room of an appropriate size by being connected or alone, and when used alone, it can be assembled into an ottoman sofa type without a backrest, a low seat chair with a backrest in one place, a conner-shaped chair type with backrests in two places with an armrest on one side and a low seat height, a long sofa type with backrests in two places as a rest chair where the body can be stretched out horizontally to rest, and a sofa for a family of several people or a simple rest bed by connecting and combining three to four sofa bodies and chair bodies.
4. The cushion part to be placed on the upper surface of the seat plate and the surface of the cushion part for the backrest are made of cloth, leather or synthetic leather and are filled with a cushioning material selected from cotton, feathers, polyester cotton and urethane foam to enhance the cushioning properties. The cushion part to be placed on the backrest is 1 to 3 rectangular cushion parts with a width of 800 to 1000 mm, a length of 800 to 1200 mm and a height of 150 to 300 mm. The cushion part to be placed on the surface of the seat plate is made of cloth, leather or synthetic leather to provide stability so as to serve as a sofa mat, is filled with a cushioning material selected from cotton, feathers and urethane foam, and can be freely removed and moved.
Citation Information
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