JP2001231658A - sofa - Google Patents

Abstract

(57) [Summary] [Problem] Because the depth of a seat is limited in a conventional sofa, it is cramped to put a cross on a seat or to lie down on the seat. SOLUTION: The sofa body has a sofa body having a backrest and a sleeve, and a seat separate from the sofa body, a rear portion of the seat is inserted into a storage space provided in the sofa body, and a front portion is supported by casters. The front part of the sofa is pulled out of the accommodation space when slid forward and backward, and the rear part is accommodated in the accommodation space when slid backward. The seat frame is provided with a stopper that can stop and release the slide forward and backward in a stepless manner, and the stopper stops and releases the forward and backward slide of the seat when the handle provided on the near side under the seat is operated. I did it.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sofa in which a seat can be slid back and forth, so that a person can sit down on the sofa in the same manner as a normal sofa, and the seat can be easily placed on the sofa seat. It is about a sofa that can be written and laid down.

[0002]

2. Description of the Related Art Sofas have conventionally been of various shapes, ranging from ones for one person to several persons. Conventional sofas generally have fixed seat positions, and ordinary seats are formed to have a depth suitable for sitting down. She was cramped because she did not have enough depth to write or lie down.

In order to increase the depth of the seat, the backrest is conventionally tilted horizontally so that the backrest can be used as a seat. A separate auxiliary seat is stored under the seat. When the auxiliary seat is pulled out to the front of the seat when necessary, it can be used as a part of the seat,
Some seats are folded in such a manner that the seat is folded in two or three, and the seat is usually used in a folded state as a sofa, and when necessary, the seats are spread and used as a seat.

However, the above-mentioned conventional sofa has the following problems. (1) In the method in which the backrest is tilted, the backrest is eliminated when the backrest is tilted, so that it is difficult to sit down on the seat or to sit on the seat when sitting on the seat. (2) With the method of pulling out the auxiliary seat from under the seat, if the auxiliary seat is just pulled out, the auxiliary seat is one step lower than the seat, so there is a step between the two seats, it is difficult to scrape the cross, and it is hard to be horizontal. . In order to solve this problem, the drawn-out auxiliary seat may be lifted upward so as to be at the same height as the seat, but this requires complicated operation and complicated mechanism. (3) In the case where the seat is folded in two or three, a step is generated between the spread seats, and the sitting comfort is poor. Also, the height of the seat changes between when it is folded and when it is opened, making it difficult to use.

Accordingly, the present applicant has developed a sofa in which the seat can be slid back and forth first, and has applied for a patent (Japanese Patent Application No. 9-3).
2374).

[0006]

Although the sofa of the above-mentioned application does not cause any inconvenience, it is impossible to fix the pulled-out seat to only a few places step by step. There was a problem that could not be done.

[0007]

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to prevent the seat from being folded or unfolded, or to lean down on the backrest, and to lean forward while sitting on the seat. When you move the seat, the seat slides forward to increase the depth of the seat, and there is no step, so it is comfortable to sit on, and you can easily put on or lie down, and slide the seat backward. It can also be returned to the original state, the seat that has been slid can be fixed at a desired comfortable position, and furthermore, the seat can be slid simply by operating the handle with one touch, and An object of the present invention is to provide a sofa that can be fixed (locked) to a desired position in a stepless manner.

[0008] The first sofa of the present invention has the following structures A to M. A. B. a sofa body provided with a backrest on the upper back of the body frame and sleeves provided on both sides in the width direction of the body frame; B. a seat formed separately from the sofa body; B. An accommodation space surrounded by the back of the sofa body and the sleeve is provided under the backrest. A. A caster rotatable in the front-rear direction is attached to a front portion of the bottom surface of the seat so as to protrude below the bottom surface of the seat. B. The seat is placed on the body frame, the rear part is inserted into the accommodation space, and the front part is supported by casters so as to be slidable in the front-rear direction. G. When the seat is slid forward, the rear portion is pulled forward from the accommodation space, and when the seat is slid rearward, the rear portion is accommodated in the accommodation space. B. stoppers are provided on the body frame of the sofa body and the seat frame of the seat to stop and release sliding of the seat back and forth; The stopper includes a bracket, a shaft penetrating the bracket slidably, a spring wound around the outer periphery of the shaft, an operation mechanism for operating the spring in a direction in which the winding is loosened, and a handle for operating the operation mechanism. I. The bracket is fixed to the seat frame, the shaft is slidably penetrated through the bracket and fixed to the main body frame, and a spring is wound around the outer periphery of the shaft so as to be tightly fixed to the outer peripheral surface thereof, and one of the fixed ends thereof is fixed. J. fixed to the bracket, the other free end of which protrudes outside the bracket; The operating mechanism operates the free end of the spring when operated by the handle, and releases the operation of the free end when the operation by the handle is released; K. When the free end of the spring is operated by the operating mechanism, the winding of the spring is loosened and the close contact of the spring with the outer peripheral surface of the shaft is released, and the seat can slide with the bracket in the front-rear direction of the sofa body; When the operation of the free end by the operation mechanism is released,
The spring is wound back, the spring is tightly fixed to the outer peripheral surface of the shaft, and the seat is locked so that it cannot slide. The handle is provided on the near side under the seat so that a person sitting on the seat can operate while sitting.

According to a second sofa of the present invention, a guide mechanism for guiding a seat that slides back and forth is provided on the sofa body and the seat of the sofa according to the first aspect.

A third sofa according to the present invention is the sofa according to claim 1 or 2, wherein the rear portion of the sofa body is connected to the lower portion of the backrest by a connecting piece, and the rear portion of the seat is slid forward. There is no gap between the backrest and the lower part of the backrest.

[0011]

[First Embodiment] FIGS. 1 and 2 show a first embodiment of a sofa according to the present invention. This sofa is for one person and has a sofa body 4 and a seat 5 formed separately therefrom.
The seat 5 is slidable back and forth from the normal state shown in FIG. 1 to the pulled-out state shown in FIG.

As shown in FIGS. 3, 4 and 5, the sofa body 4 has a backrest 2 attached to an upper portion of the back of the body frame 1.
Sleeves 3 are attached to both sides of the body frame 1 in the width direction. Less than,
This will be specifically described with reference to FIGS.

The main body frame 1 is made of a wooden front wheel 24 and a rear wheel 2.
5. A rear plate 28 is erected on both rear sides of a rear wheel 27 formed in a rectangular frame shape by left and right horizontal base wheels 26, and two opposing main plates 2 are provided.
Connect the upper end of 8 with a shade (not shown)
The intermediate portions in the vertical direction of the plurality of end plates 28 are connected by winding (not shown).

The sleeve 3 is arranged outside the base ring 27 and the end plate 28 of the main body frame 1, and a nut (not shown) is inserted from inside the main body frame 1 into a screw bolt (not shown) attached to the sleeve 3.
Are fixed to the body frame 1 by screwing the nuts.

The backrest 2 is made of an elastic cushion material 3.
A cushion material 30 (FIGS. 1 and 2) having the same elasticity is disposed on both sleeves 3. The cushion material 30 is formed by sequentially laminating soft urethane and cotton on hard urethane, and covering the outer periphery thereof with a decorative sheet-like surface material (such as cloth or leather). Further, the back surface 31 of the main body frame 1 is also covered with the surface material.

As shown in FIG. 5, a backrest 2 of the sofa body 4 is provided.
An accommodation space 6 is provided between the lower part of the body and the main body frame 1. This accommodation space 6 has a back surface 31 of the sofa body 4 and sleeves 3 on both sides.
As shown in FIG. 4, the rear portion (the length of the seat 5 is about 1/3 the depth) 9 of the seat 5 can be inserted and accommodated therein.

A male rail 32 is attached to the inside of the horizontal base wheel 26 (FIG. 3) of the main body frame 1 along the longitudinal direction. The male rail 32 is L-shaped as shown in FIG. This male rail 32 is a seat 5 described later.
Are fitted over each other over the female rails 33,
The male rail 32 and the female rail 33 form a guide mechanism 19 that smoothly slides the seat 5 back and forth and prevents the seat 5 from swaying.

The seat 5 shown in FIGS. 1 and 2 has a cushion member 30 provided on a wooden square frame-shaped seat frame 10 as shown in FIG. This cushion material 30 is formed by laminating an S-shaped spring, chip urethane, hard urethane, soft urethane, and cotton in order from bottom to top, and covering the outer periphery thereof with a decorative sheet-like surface material (such as cloth or leather). is there. At the front part of the bottom surface 7 of the seat 5, there is provided a mounting base 34 projecting downward, and a caster 8 rotatable in the front-rear direction is mounted thereon, so that the caster 8 projects below the bottom surface 7 of the seat 5. Also, wooden covers 35 are provided on the front and both sides of the mounting base 34.
And the upper part of the caster 8 is hidden. The same surface material as the surface material of the seat 5 is attached to the surface of the cover 35 to improve the appearance. 6, on both sides of the seat frame 10 in the width direction.
As shown in FIG. 7, a female rail 33 is attached, and the female rail 33 has a fitting groove 36 having a downward opening on the bottom surface. As shown in FIG.
When set (set) on the male rail, the male rail 32 is fitted.

As shown in FIG. 4, the seat 5 is a base wheel 2 of the sofa body 4.
7, the rear part 9 is inserted into the accommodation space 6 (FIG. 5), and the caster 8 is set on the sofa body 4 with the ground contacting the sofa grounding surface. And the seat 5 can be slid smoothly by the rotation of the casters 8. In this case, when the seat 5 is pulled forward,
If a gap is formed between the rear part 9 and the backrest 2, the appearance is poor. Therefore, in this embodiment, a connection made of the same material as the laser sheet of the seat 5 is provided behind the rear part 9 of the seat 5 as shown in FIG. Piece 2
0 is extended, and it is connected to the lower end of the backrest 2 so that no gap is formed.

The main body frame 1 and the seat frame 10 are provided with stoppers 11 for locking and stopping the seat 5 at a desired position and for releasing the lock to enable sliding as shown in FIG. As shown in FIG. 8, the stopper 11 includes a bracket 12, a shaft 13 that penetrates the two opposing plates 40, and is reciprocally slidable, and a spring 1 wound around the outer periphery of the shaft 13.
4, an operating mechanism 15 for operating to loosen the winding of the spring 14, and a handle 16 (FIG. 4) for operating the operating mechanism 15.

The bracket 12 is fixed to a fixing plate 42 of the seat frame 10 as shown in FIG. 7, and the shaft 13 extends through the opposing plate 40 of the bracket 12 as shown in FIG.
The spring 14 is wound around the outer periphery of the shaft 13 between the opposing plates 40 of the bracket 12 as shown in FIG. Spring 14 is shaft 13
The shaft 13 is locked by being wound so as to be tightly fixed to the outer peripheral surface of the bracket, and one fixed end 17 thereof is fixed to the bracket 12,
The other free end 18 is projected laterally outward of the bracket 12, and when the free end 18 is pushed upward, the winding of the spring 14 is loosened, and the spring 14 is separated from the outer peripheral surface of the shaft 13 to unlock the spring 14. When the pressing is released, the winding of the spring 14 returns, and the spring 14 comes into close contact with the outer peripheral surface of the shaft 13 to lock the shaft 13.

The operating mechanism 15 is disposed at the bottom of the seat frame 10 as shown in FIGS. As shown in FIG. 8, the operating mechanism 15 includes a push plate 50 for pushing the free end 18 of the spring 14 upward, and an operating arm 5 for rotating the push plate 50.
The push plate 50 is rotatably mounted on a support plate 52 (FIG. 8) projecting downward from the fixed plate 42 of the seat frame 10 by a support shaft 53 (FIG. 8) as shown in FIG. The connecting plate 54 is vertically welded to the push plate 50 and is raised upward.

The operating arm 51 has a rear end 55 fixed to one end of a relay plate 56 as shown in FIG. 8, and a front end 57 having a handle 16 attached to the front end of the seat frame 10 as shown in FIG.
It is connected to. The other end of the relay plate 56 is fastened with a nut to the other end of the adjustment shaft 60, the other end of which is locked to the connecting plate 54. By rotating the nut to change its position, the pulling of the operating arm 51 can be finely adjusted. It is adjustable. The handle 16 has a plate shape as shown in FIGS. 6 and 7, and the upper portion thereof is attached to a bracket 61 fixed inside the seat frame 10 with a pin 62 as shown in FIG.
As shown in FIG. 4, the lower end is rotatable in the front-rear direction (the direction of arrow AB).

As shown in FIG. 4, the handle 16 is
The person sitting at the front reaches under the seat 5 and moves forward (arrow A
8), the operating arm 51 connected to the handle 16 is pulled forward, whereby the upper end of the connecting plate 54 shown in FIG.
Is pivoted toward the front side and tilted forward, the free end 18 of the spring 14 is pushed up by the push plate 50, the winding of the spring 14 is loosened, the lock of the shaft 13 by the spring 14 is released, and the seat 5 is moved back and forth. Will be able to slide. When the operation of the handle 16 is released, the operation arm 51 is pulled back by the return spring 63, whereby the upper end of the connecting plate 54 returns to the rear, and the push plate 50 rotates rearward about the support shaft 53, and , The pushing up of the free end 18 of the spring 14 by the push plate 50 is released, the winding of the spring 14 returns, the spring 14 comes into close contact with the outer peripheral surface of the shaft 13, the shaft 13 is locked, and the seat 5 is also Stop.

Further, in the sofa shown in this embodiment, a substantially L-shaped locking member 70 is protruded from the main body frame 1 as shown in FIG. 6, and this is locked on the upper surface of the female rail 33 of the seat frame 10. When the seat 5 is slid, the seat 5 is lifted upward so as not to come off the sofa body 4 (the fitting between the male rail 32 and the female rail 33 is not released).
As shown in FIG. 4, the tip of a wood screw 71 penetrating the handle 16 is screwed halfway into the seat frame 10, and when the handle 16 is turned by a predetermined amount in the direction of arrow B, the wood It is locked on the head of the screw 71 so as not to rotate any further. Furthermore, of both ends of the shaft 13,
A stopper pin 72 is inserted into the end that penetrates the front base wheel 24 to prevent it from falling off.

[0026]

Embodiment 2 FIG. 9 shows a sofa according to a second embodiment of the present invention. This sofa is for two persons in which two seats 5 are set side by side on one sofa body 4, and has a horizontally long backrest 2 and two sleeves 3. The sofa body 4 is horizontally long so that the two seats 5 can be arranged side by side. In this case, the base wheel 27 (not shown) of the sofa body 4 is also made horizontally long, and a middle base wheel is provided at the center in the horizontal direction, so that two base wheels 27 shown in FIG. 3 are arranged side by side. In addition, the sofa of FIG.
A horizontal storage space capable of housing two seats 5 side by side is formed between the lower part and the base wheel. This storage space is also surrounded by the back surface of the sofa body 4 and the sleeve 3.

The two seats 5 have the same shape and structure as those shown in FIG. 7, and have a slightly smaller width than that shown in FIG. A caster (not shown) is attached to the front bottom surface 7 of each seat 5, and a female rail that fits with the male rail of the body frame is attached. The width of the two seats 5 may be the same as that shown in FIG.

The main body frame and the seat frame are also provided with a slide mechanism. In this sliding mechanism, two male rails are attached to the bottom surface of the body frame, and two female rails are attached to each of two seats 5 to be set on the bottom, as in the case of the sofa for one person. The seat 5 is fitted so that the seat 5 slides smoothly on the main body frame and does not swing laterally.

A stopper mechanism is also provided on the bottom of the body frame and the bottom of the seat frame. In this case, the bracket 12 and the operating mechanism 1 are provided on the bottom surface of each seat 5 similarly to the seat 5 in FIG.
5, a handle 16 is provided, and a shaft 13 that penetrates the bracket 12 of the seat 5 is attached to the bottom surface of the main body frame similarly to the main body frame of FIG. 8, so that each seat 5 can be individually locked and released.

In the two-seat sofa of this embodiment, the rear part 9 (not shown) of the seat 5 is normally pushed into the accommodation space (not shown) as shown in FIG. When a person sitting on the seat 5 extends his arm under the seat and pulls the handle forward, the stopper mechanism is unlocked and the seat 5 can slide forward, as in the case of a sofa for one person, When the seat 5 is pulled forward while sitting on the seat 5, the rear portion 9 of the seat 5 accommodated in the accommodation space 5.
Is pulled out in front of the backrest 2, and the depth of the seat 5 is increased.
When the handle is released after being slid to the desired position, the stopper mechanism is locked, the movement of the seat is stopped, and the seat is fixed at that position, as in the case of the sofa for one person. In this way, the seat can be moved by a one-touch operation only by operating the steering wheel. Also in this case, the seat does not shift laterally due to the guide mechanism, and the caster slides smoothly back and forth because of the casters on the bottom surface of the seat 5.

[0031]

Other Embodiments The depth of the accommodation space 5, the depth of the seat accommodated in the accommodation space, the slide mechanism and the like can be arbitrarily selected. The sofa may be a three-person sofa. The handle 16 can be operated by standing up from the seat 5 instead of sitting on the seat 5.

[0032]

The sofa of the present invention has the following effects. (1) The depth of the seat can be freely adjusted by sliding the seat forward and backward steplessly according to the application, so it is convenient to put or lie down on the seat. (2) The seat width can be adjusted by sliding the seat back and forth as it is, instead of folding or expanding the seat. Even if the seat width is increased, the seat surface is flat without any steps. Comfortable to use. (3) Since the accommodation space for accommodating the rear part of the seat is provided at the lower part of the backrest, the depth of the sofa does not become particularly long by providing the accommodation space. (4) The rear part of the seat is accommodated in the accommodation space under the backrest, so that even if the depth of the seat is longer than that of a normal sofa, the seat protrudes particularly long in front of the backrest during normal use. And the sofa doesn't look bad. (5) Since the seat can be slid back and forth simply by moving the waist back and forth while sitting on the seat, the sliding operation is easy. (6) Since a guide mechanism is provided on the body frame and the seat,
The seat slide stabilizes. (7) Since stoppers are provided on the body frame and seat,
The seat is stable and safe without inadvertent sliding.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of a sofa of the present invention, showing a state before a seat is slid forward.

FIG. 2 is a perspective view showing the first embodiment of the sofa of the present invention, showing a state where a seat is slid forward;

FIG. 3 is a partially omitted bottom perspective view showing the structure of the sofa of the present invention shown in FIG. 1;

4 is a partially omitted side sectional view showing the structure of the sofa of the present invention shown in FIG.

FIG. 5 is a partially omitted side sectional view showing the structure of the sofa of the present invention shown in FIG. 1;

FIG. 6 is a partially omitted front sectional view showing the structure of the sofa of the present invention shown in FIG. 1;

FIG. 7 is a partially omitted bottom perspective view showing the structure of the seat.

FIG. 8 is an explanatory view showing a stopper and an operation mechanism.

FIG. 9 is a perspective view showing another embodiment of the sofa of the present invention, showing a sofa for two.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body frame 2 Backrest 3 Sleeve 4 Sofa main body 5 Seat 6 Housing space 7 Bottom of seat 8 Casters 9 Rear part of seat 10 Seat frame 11 Stopper 12 Bracket 13 Shaft 14 Spring 15 Operating mechanism 16 Handle 17 Fixed end 18 Free end 19 Guide Mechanism 20 Connecting piece

Claims (3)

[Claims] 1. A sofa provided with the following constitutions A to M: A. B. a sofa body (4) provided with a backrest (2) on the upper back of the body frame (1) and sleeves (3) on both sides in the width direction of the body frame (1); B. a seat (5) formed separately from the sofa body (4); B. A housing space (6) surrounded by the back of the sofa body (4) and the sleeve (3) is provided under the backrest (2). B. A caster (8) rotatable in the front-rear direction is attached to a front portion of the bottom surface (7) of the seat (5) so as to protrude below the bottom surface (7) of the seat (5). B. The seat (5) is placed on the main body frame (1), the rear part is inserted into the accommodation space (6), and the front part is supported by casters (8) so as to be slidable in the front-rear direction. The seat (5) slides forward and the rear (9)
Is pulled out from the accommodation space (6) forward and slid backward, the rear part (9) is accommodated in the accommodation space (6), Stop sliding the seat (5) back and forth between the body frame (1) of the sofa body (4) and the seat frame (10) of the seat (5).
Providing a releasable stopper (11); The stopper (11) includes a bracket (12)
A shaft (13) penetrating the bracket (12) so as to reciprocally slide, a spring (14) wound around the outer periphery of the shaft (13), and an operation of operating the spring (14) in a direction in which the winding is loosened. A mechanism (15) and a handle (16) for operating the operating mechanism (15); The bracket (12) is fixed to the seat frame (10), the shaft (13) is slidably penetrated through the bracket (12), and is fixed to the main frame (1), and the spring (14).
Is wound around the outer periphery of the shaft (13) so as to be tightly fixed to the outer peripheral surface, and one fixed end (17) is fixed to the bracket (12), and the other free end (18) is fixed to the bracket (12). Outside the J. When the operating mechanism (15) is operated by the handle (16), the free end (18) of the spring (14)
When the operation by the handle (16) is released, the operation of the free end (18) is released; When the free end (18) of the spring (14) is operated by the operating mechanism (15), the winding of the spring (14) is loosened and the spring (14) moves to the outer peripheral surface of the shaft (13).
Is released, and the seat (5) can slide with the bracket (12) in the front-back direction of the sofa body (4). When the operation of the free end (18) by the operation mechanism (15) is released, the winding of the spring (14) returns, and the spring (14) is tightly fixed to the outer peripheral surface of the shaft (13), and the seat (5) is released. ) Is locked and cannot slide. The handle (16) is provided on the near side under the seat (5) so that a person sitting on the seat (5) can operate while sitting on the seat. 2. The sofa according to claim 1, wherein a guide mechanism (19) for guiding a seat (5) that slides back and forth is provided on the sofa body (4) and the seat (5). sofa. 3. The sofa according to claim 1, wherein the back (9) and the backrest (2) of the seat (5).
When the seat (5) is pulled forward, a gap is formed between the rear part (9) of the seat (5) and the lower part of the backrest (2). A sofa characterized by not being able to do so.