JP2021087773A - Sofa structure to which backrest unit can be detached/attached, and sofa accessory - Google Patents

Abstract

To provide a sofa structure to which a backrest unit can be attached/detached and an assembly method thereof, in which a variation of a structure unit and accessory is increased to achieve an abundant variation of designs by the combination thereof, in which the use form can be easily changes, and which facilitates a covering work and a carrying work.SOLUTION: A sofa structure to which a backrest can be detached/attached according to the present invention, includes: a planar base unit in which a surface and a bottom face are connected by side surfaces and in which a linear inserting groove is provided on the surface; and a backrest unit made up of a cushion part having a bottom face and insertion means extending vertically downward from the bottom face. The insertion means of the backrest unit is inserted into the insertion grove of the base unit such that the cushion part can be fixed on a surface of the base unit.SELECTED DRAWING: Figure 1

Description

The present invention relates to a sofa structure in which the backrest unit can be attached and detached, and sofa accessories such as a table unit and a desk unit.

In order to bring in the sofa and secure the number of variations, in Patent Document 1 and Patent Document 2, the backrest, armrests, cushions of the seat, etc. are made removable parts on the sofa base, and these parts are assembled and completed. Assembled sofas designed to be used are disclosed. However, in such a conventional prefabricated sofa, the position where the backrest and the armrest are attached is uniform, so the completed form of the sofa is standardized, and the arrangement of the armrest and the backrest of the multi-sofa is exchanged. It was not possible to have variations such as using a chaise longue.

In view of such problems, the sofa structure that can be assembled and rearranged disclosed in Patent Document 3 includes a plurality of base units U, U ...; and a high block body 2 having a height that can be used as a backrest. 2 ... and; a base unit U / U ... that constitutes an assembly-type sofa including a block body 3/3 ... that can be used as an armrest or a footrest, and further constitutes the sofa base 1. Block fixing portions 11 and 11 composed of one or a plurality of insertion holes H are formed on the upper surfaces of at least two adjacent sides, and the block fixing portions 11 are formed on the lower surfaces of the high block 2 and the low block 3.・ Insertion bosses B and B that can be attached to the insertion holes H of 11 are arranged. This sofa structure can increase the variation of design by combining parts, and it is also possible to change the sofa form according to how to relax, and it is easy to assemble and rearrange the covering work and carrying-in work. It is possible.

Jikkai Sho 58-8364 Jikkenhei 7-30796 Gazette Japanese Unexamined Patent Publication No. 2012-223484

In the present invention, by further increasing the variation of the constituent units and accessories, the variation of the design by the combination is enriched, the usage pattern can be easily changed, and the covering work and the carrying-in work are also easy. It provides a sofa structure in which the backrest unit can be attached and detached, and a method for assembling the sofa structure.

The sofa structure to which the backrest unit according to the present invention can be attached and detached is a flat base in which the front surface and the bottom surface are connected by side surfaces, and the base unit having a linear insertion groove on the surface. , A cushion portion serving as a backrest, and a backrest unit including an insertion means extended below the cushion portion.
The cushion portion can be fixed on the surface of the base unit by inserting the insertion means of the backrest unit into the insertion groove of the base unit.

In the sofa structure to which the backrest unit according to the present invention can be attached and detached, the base unit may have a rectangular shape, an elliptical shape, or a combination thereof in a plan view.

In the sofa structure to which the backrest unit according to the present invention can be attached and detached, the base unit is a substantially rectangular body in which the front and rear side surfaces and the left and right side surfaces connect the surface and the bottom surface, and the base unit is formed on the surface. , At least an insertion groove is provided along the rear side surface, and the backrest unit has a plate-shaped cushion portion having a left end portion and a right end portion, a front surface and a back surface portion, and an upper end portion and a connection portion, and a connection thereof. A sofa structure in which the backrest unit is detachable, which is a carbon fiber backrest unit connected so that the insertion means extends vertically downward from the portion.
In the carbon fiber backrest unit, a plurality of flexible sheet-shaped prepregs containing a plurality of carbon fibers having flexibility and resin permeability and a matrix resin impregnating the carbon fibers are laminated. It is characterized in that it is formed of a carbon fiber composite laminated board having a front surface and a back surface.

In the sofa structure to which the backrest unit can be attached and detached according to the present invention, the carbon fiber backrest unit has a carbon fiber insertion means integrally molded with the cushion portion, and is perpendicular to the connection portion of the cushion portion. It is characterized by being stretched downward.

The sofa structure to which the backrest unit can be attached and detached according to the present invention is a carbon fiber multi-corrugated plate in which the carbon fiber composite laminated plate forming the cushion portion is formed in a wavy shape at a pitch of 10 mm to 15 mm. It is characterized by that.

In the sofa structure to which the backrest unit can be attached and detached according to the present invention, the base unit is a substantially rectangular parallelepiped in which the front and rear side surfaces and the left and right side surfaces connect the front surface and the bottom surface. An insertion groove is provided along at least the rear side surface, and the backrest unit is extended vertically downward from the left and right side surfaces, the front surface and the rear surface, and the cushion portion having the upper surface and the bottom surface, and the bottom surface thereof. It can be composed of a plug-in means.

The sofa structure to which the backrest unit according to the present invention can be attached and detached may have an insertion groove provided along the left side surface and / or the right side surface and / or the front side surface of the base unit.

In the sofa structure to which the backrest unit can be attached and detached according to the present invention, the means for inserting the backrest unit may be two rod-shaped bodies extending vertically downward in parallel from the bottom surface of the backrest unit. ..

In the sofa structure in which the backrest unit can be attached and detached according to the present invention, the cushion portion of the backrest unit has a tapered shape with a gently inclined front surface and a steeply inclined rear surface in a side view. And the rear surface may be smoothly connected on the upper surface.

In the sofa structure to which the backrest unit can be attached and detached according to the present invention, the front surface and the rear surface of the cushion portion of the backrest unit are refracted in the front direction with the left and right center lines as the target axes, respectively, and can be viewed in a plan view. It may be in the shape of.

In the sofa structure to which the backrest unit can be attached and detached according to the present invention, the insertion means is two rod-shaped bodies extending vertically downward in parallel from the bottom surface thereof, and one of the rod-shaped bodies is rearward. It may be inserted into the insertion groove along the side surface, and the other rod-shaped body may be inserted into the insertion groove provided along the left side surface and / or the right side surface.

The accoudoir unit according to the present invention is an accessory to be set on the base unit, and is composed of an accoudoir portion having a flat upper surface and a lower surface, and the insertion means extending vertically downward from the lower surface. The insertion means can be inserted into the insertion groove of the base unit, and the accoudoir portion can be fixed on the surface of the base unit.

The table unit according to the present invention is an accessory to be set on the base unit, and is composed of a flat plate having an upper surface and a bottom surface and a rod-shaped body extending vertically downward from the bottom surface. The flat plate can be rotatably fixed on the surface of the base unit by inserting it into the insertion groove of the base unit.

The desk unit according to the present invention is an accessory to be set on the base unit, and is composed of a flat plate having a top surface and a bottom surface, and a plurality of insertion means extending vertically downward from the vicinity of both ends of the bottom surface. The flat plate can be fixed above the surface of the base unit by inserting the insertion means into the insertion groove of the base unit.

The carbon fiber seat plate unit according to the present invention is an accessory to be set on the base unit, and includes a carbon fiber seat plate having a front end portion and a rear end portion, a left end portion and a right end portion, and a front surface and a back surface. It is composed of one or a plurality of insertion means extending vertically downward from the left end portion and the right end portion or the back surface thereof, and at least the carbon fiber seat plate has a plurality of carbon fibers having flexibility and resin permeability. It is formed of a carbon fiber composite laminated plate having a front surface and a back surface, which is formed by laminating a plurality of flexible sheet-shaped prepregs containing the matrix resin impregnating the above. The insertion means can be inserted into the insertion groove of the base unit, and the seat plate can be brought into contact with the surface of the base unit to be fixed.

In the sofa structure to which the backrest unit can be attached and detached according to the present invention, the cushion portion can be fixed on the surface of the base unit by inserting the insertion means of the backrest unit into the insertion groove of the base unit. Since the insertion groove can be linearly provided at an arbitrary position of the backrest unit, the backrest unit can be made into the insertion groove by, for example, shifting the insertion means of the rod-shaped body along the insertion groove. It can be easily moved along and easy to remove.

In addition to the backrest unit, accessories such as an accoudoir unit, a table unit, and a desk unit can be inserted into the insertion groove of the base unit, and these accessories can be set on the base unit. These accessories can also be easily moved along the insertion groove and easily removed by shifting the insertion means along the insertion groove.

The sofa structure according to the present invention to which the backrest unit can be attached and detached can easily replace and rearrange abundant accessories such as the backrest unit and the table unit. It is abundant, it is easy to change the usage pattern of the sofa structure, and it is also easy to cover and carry in.

Further, in the sofa structure to which the backrest unit can be attached and detached according to the present invention, accessories such as the backrest unit and the seat plate are made of a carbon fiber composite laminated plate or carbon formed in a wavy shape at a pitch of 10 mm to 15 mm. It may be formed by a fiber multi-corrugated plate. The surface of the carbon fiber backrest unit and the carbon fiber seat plate formed of such a carbon fiber composite laminated plate and the carbon fiber multi-corrugated plate is hard, but a certain limit is applied depending on the load applied by the seater. Can be flexed freely. For this reason, the seater can obtain a unique sitting comfort made of carbon fiber, which is completely different from the conventional sofa.

FIG. 3 is a perspective view of a sofa structure in which the backrest unit according to the present invention can be attached and detached. A disassembled perspective view of a sofa structure in which the backrest unit according to the present invention can be attached and detached. (A)-(d) Perspective view of base unit. FIG. 3 is a disassembled perspective view of a sofa structure in which the backrest unit according to the embodiment can be attached and detached. (A) plan view, (b) front view of the sofa structure in which the backrest unit according to the embodiment can be attached and detached. (A) front view, (b) side view, (c) bottom view, and (d) plan view of the backrest unit. FIG. 3 is a cross-sectional view of a sofa structure in which the backrest unit according to the embodiment can be detached. (A) Bottom perspective view of the backrest unit, (b) Bottom perspective view of the table unit. (A) plan view, (b) front view of the sofa structure according to the embodiment including the accoudoir unit. (A) plan view, (b) front view of the sofa structure according to the embodiment including the desk unit. (A)-(c) A plan view showing the usage mode of the sofa structure according to the present invention. (A)-(c) A plan view showing other usage modes of the sofa structure according to the present invention. FIG. 3 is a perspective view of a sofa structure according to the present invention in which a base unit is set in an L shape. (A) perspective photograph and (b) front view of the carbon fiber backrest unit according to the embodiment. (A) Plan view, (b) front view of a sofa structure in which the backrest unit of the present invention can be attached and detached using the carbon fiber backrest unit and the seat plate unit according to the embodiment. (A) A schematic perspective view of a prepreg and (b) a sectional view of a carbon fiber multi-corrugated plate according to an embodiment. The flow chart which shows the manufacturing process of the carbon fiber multiple corrugated sheet which concerns on embodiment.

Hereinafter, a sofa structure in which the backrest unit according to the present invention can be attached and detached and a method for assembling the sofa structure will be described with reference to the drawings with reference to embodiments and examples. In the following drawings, the same reference numerals shall be used for the same components.

(1) Sofa structure with removable backrest unit

The sofa structure 1 to which the backrest unit can be attached and detached according to the present invention includes a base unit 10 and a backrest unit 30. FIG. 1 is a perspective view of a sofa structure 1 in which two backrest units 30 and one table unit 50 are attached to a base unit 10 and the backrest unit of the present invention can be attached and detached.

As shown in FIG. 2, the base unit 10 is a flat base in which the front surface 10U and the bottom surface 10D are connected by the side surface 10S, and the surface 10U is provided with a linear insertion groove 12. The base unit 10 is formed by attaching a cushion made of a flexible material such as urethane to a basic structure such as wood as in the conventional case (see FIG. 7), but these structures, shapes and constituent materials are particularly important. Not limited. Further, the insertion groove 12 may be curved, straight, or bent at an arbitrary angle as long as it is linear, and its length and position are not particularly limited.

FIG. 3 shows an example of the base unit 10. The base units 10 of FIGS. 3 (a) to 3 (c) have a rectangular parallelepiped shape, and insertion grooves 12 are provided at two, three, and four locations parallel to the side surface of the rectangular parallelepiped. The base unit 10 of FIG. 3D is cylindrical, and the insertion groove 12 is provided in a circular shape along the side surface. As described above, the base unit 10 may have an arbitrary shape such as a rectangular shape, an elliptical shape, or a combination thereof in a plan view. Legs 14 may be provided on the bottom surface 10D of the base unit 10 and installed.
(1-1) Embodiment 1

In the present embodiment, as shown in FIG. 2, the backrest unit 30 is composed of a cushion portion 32 having a bottom surface 32D and an insertion means 40 extending vertically downward from the bottom surface 32D. The shape and constituent materials of the cushion portion 32 and the insertion means 40 are not particularly limited, but the insertion means 40 needs to have a shape that can be inserted into the insertion groove 12 of the base unit 10.

In the sofa structure 1 according to the present invention including such a backrest unit 30 and a base unit 10, the insertion means 40 of the backrest unit 30 is inserted into the insertion groove 12 of the base unit 10. The cushion portion 32 can be fixed on the base unit surface 10U. Further, the sofa structure 1 is a sofa structure in which the backrest unit 30 can be removed from the base unit 10 by pulling out the insertion means 40 from the insertion groove 12, and the backrest unit 30 can be detached. ..

Since the sofa structure 1 according to the present invention has the backrest unit 30 detachable from the base unit 10, the base unit 10 and the backrest unit 30 can be easily stored as a single unit and disassembled. Because it can be transported, it is easy to carry in.

(Sofa structure)
In the sofa structure 1 according to the first embodiment whose perspective view is shown in FIG. 4, the base unit 10 has a front side surface 10F, a rear side surface 10B, a left side surface 10L, and a right side surface 10R connecting a surface 10U and a bottom surface 10D. It is a substantially rectangular parallelepiped, and the surface 10U is provided with an insertion groove 12B along at least the rear side surface 10B.

As described above, if the insertion groove 12 is linear, its shape, length, and position are arbitrary (see FIG. 3), and the left side surface 10L and / or the right side surface 10R and / or of the base unit 10 It may be provided on the surface 10U along the front side surface 10F, but in the sofa structure 1 according to the first embodiment, as shown in FIG. 4 or FIG. 5A, it is provided on the surface 10U of the base unit 10. , Left side surface 10L, right side surface 10R, and rear side surface 10B are provided in parallel with these side surfaces 10S (10L, 10R, 10F, 10B).

Further, as shown in FIGS. 6A to 6D, the backrest unit 30 includes a cushion portion 32 having a left side surface 32L and a right side surface 32R, a front surface 32F and a rear surface 32B, and an upper surface 32U and a bottom surface 32D. It is composed of an insertion means 40 extending vertically downward from the bottom surface 32D. As shown in FIG. 7, the insertion means 40 can be inserted into the insertion groove 12B of the base unit 10 to fix the cushion portion 32 to the surface 10U of the base unit 10.

In the sofa structure 1 according to the first embodiment, in the cross section of the cushion portion 32 of the backrest unit 30, as shown in FIG. 7, the front surface 32F and the rear surface 32B having a smooth inclination are connected by the upper surface 32U. Alternatively, as shown in FIGS. 6A to 6D, the cushion portion 32 has a front surface 32F having a gently inclined taper shape and a rear surface 32B having a steeply inclined taper shape in a cross-sectional view, and the front surface 32F and the rear surface 32B. And may be smoothly connected at the upper surface 32U.

Further, as shown in FIGS. 6A to 6D, the insertion means 40 of the backrest unit 30 is formed by two rod-shaped bodies 42, 42 extending vertically downward from the bottom surface 32D of the cushion portion 32. is there.

In the sofa structure 1 according to the first embodiment, the two rod-shaped bodies 42 and 42 are inserted into the insertion groove 12B of the base unit 10, and the cushion portion 32 is inserted into the base unit 10 as shown in FIG. 5 (b). Can be fixed to the surface of 10U. Further, by shifting the rod-shaped bodies 42 and 42 along the insertion groove 12 (12B), the cushion portion 32 can be easily moved along the insertion groove 12B. Then, the backrest unit 30 can be removed from the base unit 10 by pulling out the rod-shaped bodies 42 and 42 from the insertion groove 12B (see FIGS. 5A, 5B or 4).

(Refractive cushion)
In the second embodiment, in the cushion portion 32 of the backrest unit 30, the front surface 32F and the rear surface 32B are each bent in the front 32F direction with the left and right center lines as the target axes, as in the cushion on the left side in FIG. 5A. , It may be doglegged in plan view.

As shown in FIG. 8A, the insertion means 40 of the backrest unit 30 having a dogleg shape in a plan view is two rod-shaped bodies 42, 42, which are perpendicular to the bottom surface 32D of the cushion portion 32. It is stretched in parallel downward. The backrest unit 30 having such a configuration is provided with an insertion groove 12 along the right side surface 10R (or the left side surface 10L) of the base unit 10 and the rear side surface 10B, as shown in FIG. 5A, for example. The left and right rod-shaped bodies 42 and 42 can be inserted into the base unit 10 and set at the corners of the base unit 10 to be preferably used.

(1-2) Embodiment 2 (carbon fiber unit)

In the first embodiment (1-1) described above, the cushion portion 32 of the base unit 10 and the backrest unit 30 is formed of a flexible material such as urethane, but in the second embodiment, the backrest unit 30 The seat plate unit 60 is a unit made of carbon fiber. Similar to the first embodiment, the base unit 10 is a substantially rectangular parallelepiped in which the front and rear side surfaces 10F and 10B and the left and right side surfaces 10L and 10R connect the surface 10U and the bottom surface 10D, and the surface 10U has at least a rectangular parallelepiped. It may be a base unit 10 formed by using the above-mentioned flexible material such as urethane, which is provided with an insertion groove 12 along the rear side surface 10B (see FIGS. 15A and 15B).

That is, in the sofa structure 1 to which the backrest unit can be attached and detached according to the second embodiment, the backrest unit has the left end portion 37L, the right end portion 37R, and the surface 37F as shown in FIGS. 14A and 14B. A carbon fiber backrest unit in which a carbon fiber cushion portion 37 having a back surface 37B, an upper end portion 37U and a connecting portion 37D, and a carbon fiber inserting means 45 extending vertically downward from the connecting portion 37D are integrally molded. 35. In the present embodiment, the pillow portion 371 curved in the front-rear direction is connected to the upper end portion 37U.

Alternatively, the carbon fiber backrest unit 35 may be formed by connecting the insertion means 40 made of a material such as stainless steel or wood so as to extend vertically downward from the connecting portion 37D of the carbon fiber cushion portion 37. Good. The shape of the insertion means 40 is not particularly limited, but may be, for example, two rod-shaped bodies 42 attached to the connecting portion 37D.

The carbon fiber backrest unit 35 is formed by laminating a plurality of flexible sheet-shaped prepregs containing a plurality of carbon fibers having flexibility and resin permeability and a matrix resin impregnating the carbon fibers. It is characterized in that it is formed of a carbon fiber composite laminated board having a front surface and a back surface. The carbon fiber composite laminated plate forming the carbon fiber cushion portion 37 may be a carbon fiber multiple corrugated plate formed in a wavy shape at a pitch of 10 mm to 15 mm.

15 (a) and 15 (b) show an example of the carbon fiber backrest unit 35 according to the second embodiment. In FIGS. 15A and 15B, the surface 10U of the base unit 10 is provided with an insertion groove 12B along the rear side surface 10B, and a carbon fiber insertion means is provided on the left side of the insertion groove 12B. 45 is inserted, and the carbon fiber cushion portion 37 stands at a constant angle with respect to the base unit 10.

The carbon fiber cushion portion 37 is formed of a carbon fiber composite laminated plate or a carbon fiber multiple corrugated plate formed in a wavy shape at a pitch of 10 mm to 15 mm as described above (see FIG. 14 (a)). Although the surface is hard and inflexible, it can be flexibly bent to a certain limit according to the load applied by the seater. For this reason, the seater can obtain a unique sitting comfort made of carbon fiber, which is completely different from the conventional sofa.

(Multiple corrugated sheet made of carbon fiber)
The carbon fiber composite laminate has a flexible sheet-like prepreg 102 containing a plurality of carbon fibers 104 having flexibility and resin permeability and a matrix resin 106 impregnating the carbon fibers 104. FIG. 16A) is a composite material laminated plate made of carbon fiber having a front surface and a back surface, which is formed by laminating a plurality of sheets. Then, in the carbon fiber multiple corrugated sheet 101, as shown in FIG. 16B, the carbon fiber composite material laminated plate is formed in a wavy shape at a pitch of 10 mm to 15 mm. It is a board. In the carbon fiber composite material laminated plate and the carbon fiber multi-corrugated plate 101 of the present embodiment, it is preferable that three or more layers of sheet-shaped prepregs 102 are laminated.

In the sheet-shaped prepreg 102, as shown in FIG. 16A, for example, the unidirectional sheet-shaped prepreg 102, a plurality of carbon fibers 104 having flexibility and resin permeability are impregnated with the matrix resin 106. ing. The thickness of the sheet-shaped prepreg 102 is, for example, 0.1 mm, and the basis weight is 40 g / m ² , but the thickness and the basis weight are not limited to these and can be appropriately set.

(Manufacturing method of carbon fiber multi-corrugated sheet)
The carbon fiber multi-corrugated plate 1 according to the present embodiment is manufactured, for example, as follows (see FIG. 17).
(1) First, the sheet-shaped prepregs 102 to be laminated are selected, and each is cut into a predetermined size.
(2) A plurality of cut sheet-shaped prepregs 102 are laminated to form a preform composed of the laminated body.
(3) A preform made of a laminated body of sheet-shaped prepreg 102 is sandwiched from above and below with a concave-convex molding jig to form irregularities.
(4) The preform is covered with a bag film together with the uneven molding jig that sandwiches the preform, the surroundings are sealed with a sealing material, and the inside of the bag film is evacuated to reduce the pressure.
(5) Put the preform together with the uneven molding jig covered with the bag film into the autoclave, and heat and pressurize it.

[Concavo-convex forming process]
In the step (3), the upper and lower molds constituting the concave-convex molding jig have a waveform in which the inner surface in contact with the preform has a pitch of 10 mm to 15 mm, and the preform is pressed by pressing the preform with the upper and lower molds. It can be formed into a waveform having a desired pitch within 10 mm to 15 mm.

[Compression process]
In step (5), heat and pressure are applied to the molding using an autoclave to obtain a molded product. The preform (laminated body of the sheet-shaped prepreg 102) sandwiched between the concave-convex molding jigs is evacuated in the bag film together with the concave-convex molding jigs and pressed in the autoclave. The molding pressure is preferably 1 MPa or more.

It is preferable that the matrix resin 106, which is a thermosetting resin contained in the sheet-shaped prepreg 102, is melt-cured by heating after sufficiently increasing the pressure in the pressure molding step. As a result, the shape can be fixed so that the molded body is not deformed. The curing temperature of the matrix resin 106 can be generally 150 ° C. or higher.

Through the steps (1) to (5) above, the carbon fiber multi-corrugated plate 1 according to the present embodiment, which is formed into a wavy shape at a desired pitch within 10 mm to 15 mm, can be obtained.

(2) Accessories

(Accoudoir unit)
In the sofa structure 1 according to the fifth embodiment, the surface 10U of the base unit 10 has an insertion groove 12B along the rear side surface 10B and the left and right side surfaces 10L and 10R as shown in FIG. 9A. In addition to the insertion grooves 12L (not shown) and 12R, there are a total of five insertion grooves, including two insertion grooves 12C in the center in parallel with the left and right side surfaces 10L and 10R near the center of the base unit 10. 12 is provided.

The accoudoir unit 34 shown in FIGS. 9A and 9B is an accessory of the sofa structure 1 according to the fifth embodiment, which can be set in the base unit 10. The accoudoir unit 34 includes an accoudoir portion having a flat upper surface and a lower surface, and the insertion means 40 extending vertically downward from the lower surface, although details are not shown. The insertion means 40 can be inserted into the insertion grooves 12L, 12R, 12C of the base unit 10 to fix the accoudoir portion on the base unit surface 10U.

(Table unit)
The table unit 50 shown in FIG. 1 is an accessory set on the surface 10U of the base unit. As shown in FIG. 8B, the table unit 50 is composed of a flat plate having an upper surface and a lower surface, and a rod-shaped body 42 extending vertically downward from the lower surface. The rod-shaped body 42 can be inserted into the insertion groove 12 of the base unit 10 and the flat plate can be rotatably fixed and used on the base unit surface 10U as shown in FIGS. 5A and 5B.

(Desk unit)
The desk unit 52 shown in FIGS. 10A and 10B is also an accessory to be set in the base unit 10. The desk unit 52 is composed of a flat plate having a top surface and a bottom surface, and a plurality of insertion means 40 extending vertically downward from the bottom surface, and the insertion means 40 is inserted into the insertion groove 12 of the base unit 10. , The flat plate can be fixed and used above the surface of the base unit 10U. The insertion means 40 serving as the legs of the desk unit 52 may be a plurality of rod-shaped bodies 42 or a plurality of plate-shaped bodies, and is not particularly limited.

(Carbon fiber seat plate unit)
The carbon fiber seat plate unit 60 shown in FIGS. 15A and 15B is also an accessory to be set in the base unit 10. The carbon fiber seat plate unit 60 is formed from a seat plate 62 having a front end 62F and a rear end 62B, a left end 62L and a right end 62R, a front surface 62U and a back surface 62D, and a left end portion 62L and a right end portion 62R or a back surface 62D thereof. It is composed of one or a plurality of insertion means 64 extending vertically downward. Then, at least the carbon fiber seat plate 62 has a plurality of flexible sheet-shaped prepregs containing a plurality of carbon fibers having flexibility and resin permeability and a matrix resin impregnating the carbon fibers. It is formed of a carbon fiber composite laminated board having a front surface 62U and a back surface 62D. The carbon fiber composite material laminated plate forming the carbon fiber seat plate 62 may be the carbon fiber multiple corrugated plate 101 formed in a wavy shape at a pitch of 10 mm to 15 mm.

In the eighth embodiment, the insertion means 64 of the carbon fiber seat plate unit 60 is vertically downward from the back surface 62D of the carbon fiber seat plate 62 as shown in the upper right of each of FIGS. 15 (a) and 15 (b). It is two parallel plate-like bodies stretched to. The insertion means 64 may be formed of a carbon fiber composite laminated board, but may be made of wood or plastic, and is fixed to the seat plate 62 formed of the carbon fiber composite laminated board. If so, its shape and material are not limited.

The seat plate unit 60 according to the present embodiment can be fixed by inserting the insertion means 64 into the insertion groove 12CF of the base unit 10 and bringing the seat plate 62 into contact with the surface of the base unit 10. As shown in FIG. 15A, the seat plate unit 60 is preferably fixed by projecting the front end portion 62F of the carbon fiber seat plate 62 forward by 10 cm or more from the front side surface 10F of the base unit 10. The carbon fiber seat plate 62 is formed of a carbon fiber composite laminated plate or a carbon fiber multi-corrugated plate 101 formed in a wavy shape at a pitch of 10 mm to 15 mm as described above, and has a hard surface and surface cushioning properties. However, it can flex freely up to a certain limit according to the load applied by the seater's feet. In particular, unlike the conventional base unit 10, the protruding portion of the front end portion 62F projecting forward from the front side surface 10F bends downward according to the weight of the foot, so that the seater is completely different from the conventional sofa. You can get a unique sitting comfort made of different carbon fiber.

(3) Usage of a sofa structure with a detachable backrest unit

As described above, the sofa structure 1 to which the backrest unit can be attached and detached according to the present invention can easily replace and rearrange abundant accessories such as the backrest unit 30 and the table unit 50. , There are a lot of design variations depending on the combination, and it is easy to change the usage pattern of the sofa structure. Hereinafter, the usage mode of the sofa structure 1 according to the present invention by exchanging or rearranging accessories will be described with reference to an example.

The sofa structure 1 according to the sixth embodiment shown in FIGS. 11A to 11C is a variation of a usage pattern in which the type and arrangement of the cushion portion 32 of the backrest unit 30 are changed.

In the sofa structure 1 of FIG. 11A, the backrest unit 30 of the bent cushion portion 32 is arranged at a corner, and the sofa structure 1 can be used like an end sofa. In the sofa structure 1 of FIG. 11B, the backrest unit 30 of the normal cushion portion 32 is arranged at the corner, and two people can use it like a couch. Alternatively, as shown in FIG. 11C, the sofa structure 1 can be used as an elbowless sofa for sleeping like a bed.

In the sofa structure 1 of FIG. 12A, two backrest units 30 are arranged at the corners together, and the front and rear sides are opened in this way, and the sofa structure 1 is placed on both sides like a bench. You may be able to sit on the sofa. The sofa structure 1 of FIG. 12B can be used like a one-elbow sofa by arranging the backrest unit 30 on the right side and arranging the table unit 50 backward and outward. Of course, as shown in FIG. 12 (c), it can also be used as a standard sofa.

FIG. 13 shows an example in which two sofa structures 1 to which the backrest units according to the present invention can be attached and detached are arranged in an L shape. The sofa structure 1 arranged on the left side is provided with an insertion groove 12B along the rear side surface 10B and an insertion groove 12R along the right side surface 10R on the surface 10U of the base unit 10. Further, in addition to the insertion groove 12B and the insertion groove 12R as described above, the insertion groove 12L along the left side surface 10L is also provided on the surface 10U of the base unit 10 of the sofa structure 1 arranged on the right side. There is.

As shown in FIG. 13, the arrangement of the insertion groove 12 provided on the surface 10U of the base unit 10, the type of the backrest unit 30, and the position where the backrest unit 30 is inserted into the insertion groove 12 are variously selected. Therefore, the design variation of the sofa structure 1 of the present invention is extremely abundant. Further, by changing the arrangement of the two sofa structures 1 and using them, the variation of the usage pattern can be further increased.

Although the sofa structure in which the backrest unit according to the present invention can be attached and detached and the method for assembling the sofa structure have been described above, the present invention is not limited to the above-described embodiments and examples. The material, material, type and the like constituting the sofa structure to which the backrest unit according to the present invention can be attached and detached are not particularly limited, and the dimensions and thickness thereof can be appropriately changed.

In addition, the present invention can be carried out in a mode in which various improvements, modifications and changes are made based on the knowledge of those skilled in the art without departing from the gist thereof.

The sofa structure to which the backrest unit according to the present invention can be attached and detached can be widely used as furniture.

1: Sofa structure to which the backrest unit according to the present invention can be attached and detached 10: Base unit 10U: Surface 10D: Bottom surface 10S: Side surface 10L: Left side surface 10R: Right surface surface 10F: Front surface 10B: Rear surface 12: Insertion groove 12F , 12B: Front and rear insertion grooves 12L, 12R: Left and right insertion grooves 12C: Central insertion groove 12CF: Carbon fiber seat plate unit insertion groove 14: Leg 30: Backrest unit 32: Cushion Part 32L: Left side 32R: Right side 32F: Front 32B: Rear 32U: Top 32D: Bottom 34: Armrest unit 35: Carbon fiber backrest unit 37: Carbon fiber cushion 37L: Left end 37R: Right end 37F: Front surface 37B: Back surface 37U: Upper end 371: Pillow 37D: Connection 40: Insertion means 42: Rod-shaped body 45: Carbon fiber insertion means 50: Table unit 52: Desk unit 60: Carbon fiber seat plate unit 62 : Carbon fiber seat plate 62L: Left end 62R: Right end 62F: Front end 62B: Rear end 62U: Front end 62D: Back side 64: Insertion means 101: Carbon fiber multi-corrugated plate 102: Sheet-shaped prepreg 104: Carbon Fiber 106: Matrix resin

Claims (15)

A flat base unit in which the front surface and the bottom surface are connected by side surfaces, and a base unit having a linear insertion groove on the surface.
Includes a cushion portion that serves as a backrest, and a backrest unit that is an insertion means extended below the cushion portion.
A sofa structure in which the backrest unit can be attached and detached so that the cushion portion can be fixed on the surface of the base unit by inserting the insertion means of the backrest unit into the insertion groove of the base unit. The sofa structure according to claim 1, wherein the base unit has a rectangular shape, an elliptical shape, or a shape obtained by combining these in a plan view, and the backrest unit can be attached and detached. The base unit is a substantially rectangular parallelepiped whose front and rear side surfaces and left and right side surfaces connect the surface and the bottom surface, and the surface is provided with an insertion groove at least along the rear side surface. Ori,
The backrest unit is a plate-shaped cushion portion having a left end portion and a right end portion, a front surface and a back surface portion, and an upper end portion and a connection portion, and carbon connected from the connection portion so that the insertion means extends vertically downward. A sofa structure in which the backrest unit according to claim 1, which is a fiber backrest unit, can be attached and detached.
The carbon fiber backrest unit is
It has a front surface and a back surface, which are formed by laminating a plurality of flexible sheet-shaped prepregs containing a plurality of flexible and resin-permeable carbon fibers and a matrix resin impregnating the carbon fibers. A sofa structure with a detachable backrest unit, which is characterized by being formed of a carbon fiber composite laminated board. The third aspect of the invention, wherein the carbon fiber backrest unit is characterized in that the carbon fiber insertion means is integrally molded with the cushion portion and extends vertically downward from the connecting portion of the cushion portion. A sofa structure with a removable backrest unit. The backrest unit according to claim 3, wherein the carbon fiber composite laminated plate forming the cushion portion is a carbon fiber multi-corrugated plate formed in a wavy shape at a pitch of 10 mm to 15 mm. Detachable sofa structure. The base unit is a substantially rectangular parallelepiped whose front and rear side surfaces and left and right side surfaces connect the surface and the bottom surface, and the surface is provided with an insertion groove at least along the rear side surface. Ori,
The backrest unit is composed of a cushion portion having left and right side surfaces, front and rear surfaces, and an upper surface and a bottom surface, and an insertion means extending vertically downward from the bottom surface.
A sofa structure in which the backrest unit according to claim 1 can be attached and detached. The sofa structure to which the backrest unit according to claim 6 can be attached and detached, which has an insertion groove provided along the left side surface and / or the right side surface and / or the front side surface of the base unit. The sofa structure according to claim 6, wherein the insertion means of the backrest unit is two rod-shaped bodies extending vertically downward in parallel from the bottom surface of the backrest unit, and the backrest unit can be attached and detached. The cushion portion of the backrest unit has a tapered shape with a gently sloping front surface and a steeply sloping rear surface in a side view, and the front surface and the rear surface are smoothly connected to each other on the upper surface. A sofa structure in which the backrest unit according to 6 can be attached and detached. The backrest unit according to claim 9, wherein the cushion portion of the backrest unit has a dogleg shape in a plan view in which the front surface and the rear surface are each bent in the front direction with the left and right center lines as the target axes. Detachable sofa structure. The insertion means are two rod-shaped bodies extending vertically downward in parallel from the bottom surface thereof.
The seventh aspect of claim 7, wherein one rod-shaped body can be inserted into an insertion groove along the rear side surface, and the other rod-shaped body can be inserted into an insertion groove provided along the left side surface and / or the right side surface. Sofa structure with removable backrest unit. An accessory to be set in the base unit according to claim 1.
It is composed of an accoudoir having a flat upper surface and a lower surface, and the insertion means extending vertically downward from the lower surface.
An accoudoir unit capable of inserting the insertion means into the insertion groove of the base unit and fixing the accoudoir portion on the surface of the base unit. An accessory to be set in the base unit according to claim 1.
It is composed of a flat plate having a top surface and a bottom surface, and a rod-shaped body extending vertically downward from the bottom surface.
A table unit in which the rod-shaped body is inserted into the insertion groove of the base unit and the flat plate can be rotatably fixed on the surface of the base unit. An accessory to be set in the base unit according to claim 1.
It is composed of a flat plate having a top surface and a bottom surface, and a plurality of insertion means extending vertically downward from the vicinity of both ends of the bottom surface.
A desk unit capable of inserting the insertion means into the insertion groove of the base unit and fixing the flat plate above the surface of the base unit. An accessory to be set in the base unit according to claim 1.
Consists of a carbon fiber seat plate having a front end and a rear end, a left end and a right end, a front surface and a back surface, and one or a plurality of insertion means extending vertically downward from the left end portion and the right end portion or the back surface thereof. Being done
At least the carbon fiber seat plate
It has the front surface and the back surface, which are formed by laminating a plurality of flexible sheet-shaped prepregs containing a plurality of flexible and resin-permeable carbon fibers and a matrix resin impregnating the carbon fibers. It is made of carbon fiber composite laminate and
A carbon fiber seat plate unit that can be fixed by inserting the insertion means into the insertion groove of the base unit and bringing the seat plate into contact with the surface of the base unit.

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