JP7400298B2 - sofa - Google Patents

Description

The present invention relates to a sofa suitable for use in offices and the like.

In modern offices, in order to support various postures suitable for relaxing, immersing yourself, chatting, consulting, etc., in addition to regular office chairs, we are introducing various types of voluminous and warm chairs that do not give a feeling of work. A shaped sofa may also be installed.

By the way, conventional sofas have a backrest fixed to the rear end of the seat, and the backrest is not tiltable in the front-rear direction (for example, see Patent Document 1). Therefore, in order to make it possible to have a conversation in a variety of postures, it has been considered to make the back of the sofa tiltable in the front and rear directions.

However, in chairs etc. whose backrests can be tilted back and forth, the backrest is tiltable back and forth, and the backrest is fixed to the backrest. However, if the backrest is made to be tiltable in the front-rear direction in such a case, the following problems may occur. In other words, the height position of the lower end of the backrest with such a configuration varies depending on the tilting angle of the backrest. There is a problem that the appearance is impaired.

The existence of such defects is not limited to sofas used in offices, but also applies to sofas used in general homes.

Jitto No. 3217744

The present invention aims to solve the above-mentioned problems.

The sofa according to the invention according to claim 1 includes a sofa body having a back support rod that can be tilted in the front-rear direction, and a sofa body that is provided with a lower end in contact with the sofa main body, and that the back support rod is allowed to move up and down. and a backrest attached in a state in which the back support rod is supported by a fixed part fixed to a structural material of the sofa main body, and the fixed part so as to be tiltable back and forth via an angle adjustment mechanism. The backrest is supported by the movable part so as to be movable up and down, and the backrest and the movable part are not fixed, and the backrest falls downward under its own weight. The lower end thereof is in contact with the seat surface of the sofa body .

The sofa according to the invention according to claim 2 is the sofa according to claim 1 , in which the backrest includes an exterior bag material and an interior bag material arranged inside the exterior bag material and whose lower end is open to the outside. , comprising a cushioning material filled between the inner bag material and the outer bag material, and a movable part of the back support rod is inserted into the inner bag material so as to be able to move up and down. be.

According to the present invention, in a sofa whose backrest can be tilted back and forth in order to allow conversation etc. in various postures, sitting comfort can be maintained regardless of the tilting angle of the backrest, and the appearance can be maintained. You can arrange it.

1 is a perspective view showing a sofa system according to an embodiment of the present invention. FIG. 3 is a bottom view showing the sofa system according to the same embodiment. FIG. 3 is a front view showing main parts of the sofa system according to the embodiment. FIG. 3 is a front view showing the sofa system according to the embodiment. FIG. 3 is a right side view showing the sofa system according to the embodiment. FIG. 3 is a rear view showing the sofa system according to the embodiment. FIG. 2 is a plan view showing the sofa system according to the embodiment. FIG. 3 is a bottom view showing the sofa system according to the same embodiment. 5 is a sectional view taken along line AA in FIG. 4. FIG. An explanatory diagram of the operation of the backrest according to the same embodiment. FIG. 3 is a perspective view showing the back support rod according to the same embodiment. FIG. 3 is a perspective view showing an optional member according to the same embodiment. FIG. 4 is an explanatory diagram showing how the optional member is attached according to the same embodiment.

One embodiment of the present invention will be described with reference to FIGS. 1 to 13.

1 and 2 show a sofa system S in which a first sofa 1 and a second sofa 2 according to the present invention are combined with other sofas, that is, a third sofa 3 and a fourth sofa 4.

As shown in FIGS. 1 to 10, the first sofa 1 includes a sofa main body 5 having two types of seat surfaces 1a and 1b, front and rear, and a sofa body 5 arranged at the boundary between the front and rear seat surfaces 1a and 1b. The backrest 6 is configured to be able to change its tilted posture forward and backward. The first sofa 1 also has front and rear seat surfaces 1a and 1b, outer peripheral upright surfaces, that is, front surface 1c, side surface 1d, and back surface 1e, bottom surface 1f, and from the outer edge of bottom surface 1f to front surface 1c, side surface 1d, and The seating surface 1a, 1b has a substantially rectangular shape in a plan view. The height positions of the front seat surface 1a and the rear seat surface 1b are made to be relatively different. As shown in FIGS. 1, 4, 5, and 7, the sofa body 5 has a raised portion 5a on its rear edge, and the upper surface of this raised portion 5a serves as the rear seat surface 1b. A forward surface 5a1 of this raised portion 5a forms a rearward inclined surface corresponding to the most inclined position of the backrest 2.

Specifically, as shown in FIGS. 1 and 3 to 6, the sofa body 5 includes a peripheral wall member 51 having a front surface 1c, a side surface 1d, and a back surface 1e, and a sloped surface 1g that is separate from the peripheral wall member 51. A hakama member 52 is provided. The above-mentioned raised portion 5a is formed on the rear edge of the peripheral wall member 51, and the upper surface of this raised portion 5a constitutes the above-mentioned rear seat surface 1b. On the other hand, the forward surface 5a1 of the raised portion 5a forms a rearward inclined surface corresponding to the most inclined position of the backrest 2, as described above. The upper surface of the portion of the peripheral wall member 51 in front of the raised portion 5a constitutes the aforementioned front seat surface 1a. On the other hand, the hakama member 52 is removably attached to the lower end of the peripheral wall member 51, and as shown in FIGS. An inclined surface 1g extends diagonally upward from the periphery. A blindfold cloth 522 is stretched inside the frame member 521, and adjusters 523 are screwed to the four corners of the frame member 521. As shown in FIG. 11, the adjuster 523 includes an adjuster main body 523a installed on the floor, a polygonal columnar spacer 523b provided at the center of the upper surface of the adjuster main body 523a, and an upwardly extending portion from the center of the upper surface of the spacer 523b. The frame member 521 is provided with a male screw portion 523c protruding from the frame member 521, and the male screw portion 523b is screwed into a nut (not shown) provided on the frame member 521.

Further, this sofa body 5 is provided with a back support rod 53 for tiltably supporting the above-mentioned backrest 6. As shown in FIGS. 9 to 11, the back support rod 53 includes a fixed part 531 fixed to the structural material constituting the peripheral wall member 51, and is supported by the fixed part 531 so as to be tiltable back and forth via an angle adjustment mechanism 533. The movable part 532 is provided with a movable part 532. The fixing portion 531 and the angle adjustment mechanism 533 are provided as a left and right pair. As shown in FIG. 11, the movable part 532 includes movable brackets 532a each connected to the angle adjustment mechanism 533, a frame 532b shaped like a gate, for example, which is supported on the left and right sides by the movable brackets 532a, and a frame 532b of this frame. 532b and a horizontal member 532c constructed on the front surface thereof. The angle adjustment mechanism 533 is a normal one called a ratchet hinge, and is used when rotating the backrest 6 from the most tilted position (P) shown in FIG. 9 to the most forward tilted position (Q) shown in FIG. , each time the backrest 6 reaches a predetermined intermediate position (not shown) set at multiple locations, the backrest 6 can be locked to prevent it from tilting backwards, and the backrest 6 can be tilted slightly forward beyond the most forwardly tilted position (Q) to be in the locked state. is temporarily released and the backrest 6 can be returned to the final tilted position (P) at once. Since the ratchet hinge that performs such an action is a common one, a detailed description thereof will be omitted. The backrest 6 is supported by a movable portion 532 of the back support rod 53 so as to be able to move up and down.

As shown in FIGS. 9 and 10, the backrest 6 is provided on the sofa body 5 with its lower end 6a in contact with the sofa body 5, and is attached to the back support rod 53 in a state in which it is allowed to move up and down. This backrest 6 includes an outer bag material 61, an inner bag material 62 which is placed inside the outer bag material 61 and whose lower end is open to the outside, and a space between the inner bag material 62 and the outer bag material 61. The movable portion 532 of the back support rod 53 is inserted into the interior bag material 62 so as to be able to move vertically. That is, the backrest 6 and the movable part 532 are not fixed, and the backrest 6 falls downward under its own weight so that its lower end 6a is always in contact with the seat surface 1a in front of the sofa body 5. However, since the lower part of the backrest 6 is fixed with a wire fastener (not shown), it will not come off from the movable part 532.

As shown in FIGS. 1 and 2, the second sofa 2 includes a sofa body 5 having a width twice that of the first sofa 1, and two backrests 6 provided on the sofa body. The same reference numerals are given to the same or corresponding parts as those of the first sofa 1, and the explanation thereof will be omitted. However, the front seat, rear seat, front, side, back, bottom, and inclined surfaces of the second sofa 2 are designated with codes 2a, 2b, 2c, 2d, 2e, 2f, and 2g, respectively. ing.

As shown in FIGS. 1 and 2, the third sofa 3 has a seat surface 3a that is the same height as the front seat surface 1a of the first and second sofas 1 and 2, and has a raised part and a backrest. There is no support provided. This sofa 3 also has a seat surface 3a, a peripheral upright surface, that is, a front surface 3c, a side surface 3d, a back surface 3e, a bottom surface 3f, and a direction from the outer edge of the bottom surface 3f to the lower edge of the front surface 3c, side surface 3d, and back surface 3e. The sloped surface 3g is provided so as to gradually rise. The third sofa 3 also includes a peripheral wall member 51 and a hakama member 52, and the same or corresponding parts as those of the first sofa 1 are given the same reference numerals and the explanation thereof will be omitted.

As shown in FIGS. 1 and 2, the fourth sofa 4 has a seat surface 4a located at a higher position than the rear seat surfaces 1b of the first and second sofas 1 and 2, and has raised parts and It does not have a backrest. This sofa 4 also has a seat surface 4a, a peripheral upright surface, that is, a front surface 4c, a side surface 4d, a back surface 4e, a bottom surface 4f, and a direction from the outer edge of the bottom surface 4f to the lower edge of the front surface 4c, side surface 4d, and back surface 4e. The sloped surface 4g is provided so as to gradually rise. The fourth sofa 4 also includes a peripheral wall member 51 and a hakama member 52, and parts that are the same as or correspond to those of the first sofa 1 are given the same reference numerals, and a description thereof will be omitted.

In this embodiment, as shown in FIGS. 1, 3, and 13, two sofas 1 to 4 that are adjacent to each other are arranged so that their sides are in contact with or close to each other. A pair of upwardly inclined surfaces 9a that engage with both the inclined surfaces 1g and 3g are provided between the inclined surfaces 1g and 3g of the first sofa 1 and the third sofa 3 which are adjacent to each other and the floor surface F. In addition, a power supply option 9, which is an optional member equipped with a power outlet 91, is arranged.

As shown in FIG. 12, this power supply option 9 includes a power outlet 91, a front plate 92 that is approximately isosceles triangular in front view and has an outlet insertion hole 92a through which the front end of the power outlet 91 passes. It is equipped with an inclined plate 93 extending from the oblique side of the front plate 92, and left and right mounting plates 94 extending outward from the vicinity of the lower end of each inclined plate 93. The outer surface forms the above-mentioned upwardly inclined surface 9a. One of the mounting plates, the left mounting plate 94 in this embodiment, is formed with a notch 94x into which the spacer portion 523b of the adjuster 523 is loosely fitted and which is open to the outside. The other mounting plate, that is, the right mounting plate 94, is formed with a long hole 94a into which the spacer portion 523b of the adjuster 523 is loosely fitted. The thickness dimensions of these mounting plates 94 are set smaller than the thickness dimensions of the spacer portion 523b, so that even if the adjuster 523 is fully tightened, these mounting plates 94 can freely move in the left and right direction. .

In this embodiment, since all the sofas 1 to 4 are provided with inclined surfaces 1g to 4g, as shown in FIG. 2 and FIG. A tapered space T that gradually expands toward the bottom, in other words, a tapered space T whose vertical width continuously decreases as it goes deeper, is formed in a grid shape when viewed from the bottom. Further, between the adjacent sofas 1 to 4, the left and right tapered spaces T are combined to form a tunnel that can accommodate the aforementioned power supply option 9 and the like.

As described above, according to the configuration of this embodiment, the backrest 6 is attached to the back support rod 53 in a state in which vertical movement is allowed, and the lower end 6a of the backrest 6 is placed on the sofa body 5. Since they are in contact with each other, there is no gap between the lower end 6a of the backrest 6 and the seat surface 1a regardless of the tilting angle of the backrest 6, and it is possible to maintain seating comfort and improve the appearance. can. In other words, in the sofas 1 and 2 in which the backrest 6 is tiltable in the front and back direction in order to allow conversations etc. to be carried out in various postures while maintaining the solidity of the sofa, regardless of the tilting angle of the backrest 6. It is possible to adjust the appearance without any problem.

Further, the back support rod 53 includes a fixed part 531 fixed to the structural material of the sofa main body 5, and a movable part 532 supported by the fixed part 531 so as to be tiltable back and forth via an angle adjustment mechanism 533. Since the backrest 6 is supported by the movable part 532 in a vertically movable manner, the back support rod 53 can be reliably fixed to the structural material of the sofa body 5.

The backrest 6 is arranged between the outer bag material 61, the inner bag material 62 which is arranged inside the outer bag material 61 and whose lower end is open to the outside, and the inner bag material 62 and the outer bag material 61. The movable part 532 of the back support rod 53 is inserted into the inner bag material 62 so as to be able to move up and down, so that the back support 6 and the back support rod 53 are It is possible to realize a configuration in which the backrest 6 is attached to the back support rod 53 in a state in which vertical movement is allowed without providing a special member between them to allow relative movement.

Note that the present invention is not limited to the embodiments described above.

For example, the back support rod is not limited to a structure that includes a fixed part and a movable part that is supported by the fixed part so as to be tiltable back and forth via an angle adjustment mechanism. It is also possible to employ a structure in which the entire structure can be rotated around a shaft member.

In addition to the mode in which the movable part of the back support rod is inserted into the inner bag material of the back support so that it can move up and down, for example, the inside of the guide rail extending in the vertical direction provided on one of the back support and the back support rod can be inserted into the other side. It is also possible to adopt a mode in which the backrest can move up and down with respect to the back support rod while the lower end of the backrest remains in contact with the sofa body by sliding a guide protrusion provided on the sofa.

Furthermore, in the embodiment described above, both the first and second sofas have front and rear seat surfaces, but the present invention may be applied to a sofa that has only one seat surface.

In addition, in the embodiment described above, the sofa body is provided with a removable hakama member at the lower end of the peripheral wall member, and the hakama member gradually rises from the outer edge of the bottom surface toward the lower edge of the outer peripheral upright surface. However, there are sofas in which the outer peripheral surface of the hakama member stands vertically, and the hakama member is omitted and legs are provided at the four corners of the lower end of the surrounding wall member. The present invention may be applied to a sofa configured as follows.

In addition, various modifications may be made without departing from the spirit of the present invention.

1, 2...Sofa 5...Sofa body 53...Back support rod 531...Fixed part 532...Movable part 533...Angle adjustment mechanism 6...Backrest 6a...Lower end of backrest 61...Outer bag material 62...Inner bag material 63... Cushion material

Claims (2)

A sofa body having a back support rod that can be tilted in the front-rear direction, and a backrest that is provided with its lower end in contact with the sofa main body and is attached to the back support rod in a state in which vertical movement is allowed. death,
The back support rod includes a fixed part fixed to the structural material of the sofa body, and a movable part supported by the fixed part so as to be tiltable back and forth via an angle adjustment mechanism, and the movable part The backrest is supported to be movable up and down,
The backrest and the movable part are not fixed, and the backrest falls downward under its own weight so that its lower end touches the seat surface of the sofa body . The backrest includes an outer bag material, an inner bag material arranged inside the outer bag material and having a lower end open to the outside, and a cushioning material filled between the inner bag material and the outer bag material. 2. The sofa according to claim 1 , wherein the movable part of the back support rod is inserted into the interior bag material so as to be movable up and down.

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