JP3501711B2 - sofa - Google Patents

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 slide back and forth, and a person can sit on the sofa as well as a normal sofa. It concerns sofas that can be laid or laid down.

[0002]

2. Description of the Related Art Sofas of various shapes have heretofore been available, ranging from one for one person to several people. Conventional sofas have a fixed seat position, and a normal seat is formed with a depth width suitable for sitting down. It was cramped because there was not enough depth to cover or lie down.

Therefore, conventionally, in order to widen the depth of the seat, the backrest is tilted horizontally so that the backrest can be used as a seat, and an auxiliary seat other than that is accommodated under the seat. The auxiliary seat is pulled out to the front of the seat when necessary, so that it can be used as part of the seat,
There is one in which the seat is made into a folding type such as two or three folds, and it is usually used as a sofa in a folded state, and when necessary, they are opened and used as a seat.

However, the above-mentioned conventional sofa has the following problems. (1) In the case of the backrest tilting type, when the backrest is tilted, the backrest disappears, and therefore it becomes difficult to sit down on the seat or sit down when sitting on the crossed leg. (2) In the case of the method of pulling out the auxiliary seat from under the seat, if the seat is pulled out as it is, the auxiliary seat will be one step lower than the seat, and there will be a step between both seats, making it difficult to scratch the cross seat and lie sideways. . In order to solve this, the auxiliary seat that has been pulled out can be lifted upward so that it can be made at the same height as the seat, but this makes the operation troublesome and the mechanism becomes complicated. (3) In the type in which the seat is folded into two or three, a step is generated between the widened seats and it is uncomfortable to sit on. Also, the seat height changes when folded and when unfolded, making it difficult to use.

Therefore, the applicant of the present invention first developed a sofa in which the seat can be slid back and forth, and applied for a patent (Japanese Patent Application No. 9-
32374).

[0006]

The sofa of the above-mentioned application is not particularly inconvenient, but if it is forcibly mentioned, the pulled-out seat can be fixed only in several places in stages, so that the pulled-out seat can be fixed at a desired position. There was a problem that I could not do it.

[0007]

The object of the present invention is to solve the above-mentioned problems and to prevent the seat from being folded or unfolded and the backrest to be tilted and the waist forward while sitting on the seat. The seat slides forward when you move it to the front to widen the depth of the seat, and there is no step so that you can sit comfortably, you can comfortably walk or cross the seat, and slide the seat backward. Can be returned to its original state, and the slid seat can be fixed at a desired comfortable position, and the seat can be slid by a single touch on the handle. It is to provide a sofa that can be fixed (locked) in a desired position steplessly.

The first sofa of the present invention has the following constitutions A to M. A. A sofa body having a backrest provided on the upper rear surface of the body frame and sleeves provided on both sides in the width direction of the body frame, and B. A seat formed separately from the sofa body; Under the backrest, a storage space surrounded by the back of the sofa body and the sleeves is provided. At the front part of the bottom surface of the seat, a caster that is rotatable in the front-rear direction is attached so as to project downward from the bottom surface of the seat. 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 to be slidable in the front-rear direction. When the seat is slid forward, its rear part is pulled out forward from the accommodation space, and when it is slid rearward, the rear part is accommodated in the accommodation space. To the main body frame and the seat of the seat frame of the sofa body, provided with a sliding stop and releasable stopper to the front and back of the seat, the seat frame
A handle is provided inside the H. The handle is operated by the person sitting on the seat.
It is installed in front of the seat frame so that it can be made. The stopper is a bracket, a shaft penetrating the bracket so as to be reciprocally slidable, a spring wound around the outer periphery of the shaft, and an operation mechanism operable by the operation of the handle in a direction in which the spring is loosened and a direction in which the spring is returned.
And J. The bracket is fixed to the seat frame, and K. The shaft slidably passes through the bracket and is fixed in the front-back direction of the body frame. The spring is tightly fixed to the outer peripheral surface of said shaft
As described above, one fixed end is fixed to the bracket, and the other free end is projected to the outside of the bracket and locked to the operating mechanism . The operating mechanism allows the person sitting on the seat to remain seated.
When the handle is operated, the free end of the spring is operated to loosen the winding of the spring, so that the outer peripheral surface of the shaft is not swung.
With the pulling tightly fixed, the person should remain seated.
Seat along with the bracket along the axis sofa body
Can be slid back and forth, and N. When the above operation of the handle is released , the spring
The operation of the free end is released, the spring winding returns,
The spring does not slide because the spring is closely attached to the outer peripheral surface of the shaft.
It is locked so that it becomes Noh.

According to a second sofa of the present invention, the sofa body and the seat of the sofa according to claim 1 are provided with a guide mechanism for guiding a seat that slides back and forth.

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

[0011]

Embodiment 1 of the Invention A sofa according to a first embodiment of the present invention is shown in FIGS. This sofa is for one person, and has a sofa body 4 and a seat 5 formed separately from the sofa body 4.
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 the upper rear portion of the body frame 1,
Sleeves 3 are attached to both sides of the body frame 1 in the width direction. Less than,
A specific description will be given based on FIGS. 3 to 5.

The main frame 1 is made of a wooden front wheel 24 and a rear wheel 2
5. A gable plate 28 is erected on both rear sides of a pedestal 27 formed in a rectangular frame shape by the left and right horizontal pedestals 26, and two gable plates 2 facing each other are provided.
Connect the upper ends of 8 with a Kasaki (not shown)
The vertical middle portions of the end plates 28 are connected by winding (not shown).

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

The backrest 2 is an elastic cushion material 3
Cushion material 30 (FIGS. 1 and 2), which is made of 0 and has the same elasticity, is arranged on both sleeves 3. The cushion material 30 is formed by sequentially stacking soft urethane and cotton on hard urethane, and covering the outer periphery with a sheet-like surface material (cloth, leather, etc.) for decoration. The back surface 31 of the body frame 1 is also covered with the surface material.

As shown in FIG. 5, the backrest 2 of the sofa body 4
An accommodation space 6 is provided between the lower side and the body frame 1. The accommodation space 6 is formed by the back surface 31 of the sofa body 4 and the sleeves 3 on both sides.
As shown in FIG. 4, the rear portion of the seat 5 (the length of the seat 5 is about 1/3 the depth) 9 can be inserted and housed.

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 thereof. This male rail 32 is L-shaped as shown in its sectional shape in FIG. This male rail 32 is a seat 5 which will be described later.
The female rails 33 of the above are fitted to each other,
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 lateral shake of the seat 5.

As shown in FIG. 7, the seat 5 shown in FIGS. 1 and 2 has a cushion material 30 provided on a wooden rectangular frame 10. This cushion material 30 is formed by stacking S-shaped springs, chip urethane, hard urethane, soft urethane, and cotton in order from bottom to top, and covering the outer periphery thereof with a sheet-like surface material for decoration (cloth, leather, etc.). is there. A mounting base 34 projecting downward is provided at a front portion of the bottom surface 7 of the seat 5, and a caster 8 rotatable in the front-rear direction is attached to the mounting base 34 so that the caster 8 projects downward from the bottom surface 7 of the seat 5. , And wooden covers 35 on the front and both sides of the mount 34.
Is attached to hide the upper part of the caster 8. 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. Further, as shown in FIG.
As shown in FIG. 7, a female rail 33 is attached, and the female rail 33 is formed with a fitting groove 36 having a downward opening on the bottom surface. As shown in FIG. 6, the fitting groove 36 is formed by connecting the seat 5 to the body frame 1
It is adapted to fit with the male rail 32 when it is placed (set) on.

The seat 5 is a base wheel 2 of the sofa body 4 as shown in FIG.
7, the rear part 9 is inserted into the accommodation space 6 (FIG. 5), the caster 8 is grounded to the sofa ground surface and set on the sofa main body 4, and the seat 5 is set to FIG. As described above, the seat 5 can be slid back and forth in the front-rear direction and the seat 5 can be slid smoothly by the rotation of the casters 8. In this case, when the seat 5 is pulled out forward, the seat 5
If a gap is formed between the rear portion 9 and the backrest 2, the appearance is bad. Therefore, in this embodiment, as shown in FIG. 5, the rear portion of the rear portion of the seat 5 is connected with the same material as the laser sheet of the seat 5. Piece 2
0 is extended and connected to the lower end of the backrest 2 so that no gap is created.

As shown in FIG. 7, the body frame 1 and the seat frame 10 are provided with stoppers 11 for locking the seat 5 at a desired position and stopping it, or for unlocking the seat 5 for sliding. As shown in FIG. 8, the stopper 11 includes a bracket 12, a shaft 13 penetrating the two opposing plates 40, and a reciprocating slidable shaft 13, and a spring 1 wound around the outer periphery of the shaft 13.
4, an operating mechanism 15 that operates to loosen the winding of the spring 14, and a handle 16 (FIG. 4) that operates the operating mechanism 15.

The bracket 12 is fixed to the fixing plate 42 of the seat frame 10 as shown in FIG. 7, and the shaft 13 penetrates the facing plate 40 of the bracket 12 and the main frame 1 as shown in FIG.
It is arranged and fixed between the front wheel 24 and the rear wheel 25, and the spring 14 is wound around the outer circumference of the shaft 13 between the opposing plates 40 of the bracket 12 as shown in FIG. The spring 14 is the shaft 13
The shaft 13 is locked so as to be closely fixed to the outer peripheral surface of the shaft 13 and the shaft 13 is locked, and one of the fixed ends 17 is fixed to the bracket 12,
The other free end 18 is projected laterally to the outside of the bracket 12, and when the free end 18 is pushed upward, the winding of the spring 14 loosens and the spring 14 separates from the outer peripheral surface of the shaft 13 to unlock the spring 14. When the push 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 arranged 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 that pushes the free end 18 of the spring 14 upward, and an operating arm 5 that rotates the push plate 50.
1, and the push plate 50 is rotatably attached by a support shaft 53 (FIG. 8) to a support plate 52 (FIG. 8) protruding downward from the fixed plate 42 of the seat frame 10 as shown in FIG. The connecting plate 54 is vertically welded to the pushing plate 50 and is welded upward.

A rear end 55 of the operation arm 51 is locked to one end of a relay plate 56 as shown in FIG. 8, and a front end 57 is attached to a handle 16 attached to the front end of the seat frame 10 as shown in FIG.
Are linked to. At the other end of the relay plate 56, one end is fixed to the connecting plate 54, and the other end of the adjusting shaft 60 is fixed by a nut. By rotating the nut to change its position, the pulling margin of the operation arm 51 can be made smaller. It is adjustable. The handle 16 has a plate shape as shown in FIGS. 6 and 7, and an upper portion thereof is attached by a pin 62 to a bracket 61 fixed to the inside of the seat frame 10 as shown in FIG.
As shown in FIG. 4, the lower end side is rotatable in the front-back direction (arrow AB direction).

This handle 16 is attached to the seat 5 as shown in FIG.
A person sitting on the floor extends his hand under the seat 5 and moves forward (arrow A
Direction), the operation arm 51 connected to the handle 16 is pulled forward, whereby the upper end of the connecting plate 54 shown in FIG.
The shaft is pivoted to 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 shaft 13 is unlocked by the spring 14, and the seat 5 is moved back and forth. You will be able to slide to. 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 portion of the connecting plate 54 returns to the rear, and the push plate 50 rotates rearward about the support shaft 53 as a pre-operation. When the push plate 50 releases the push-up of the free end 18 of the spring 14, the winding of the spring 14 returns and the spring 14 comes into close contact with the outer peripheral surface of the shaft 13 so that the shaft 13 is locked and the seat 5 also moves. Stop.

Further, in the sofa according to the present embodiment, as shown in FIG. 6, a substantially L-shaped locking member 70 is projectingly provided from the main body frame 1 and locked to the upper surface of the female rail 33 of the seat frame 10. Thus, when the seat 5 is slid, the seat 5 is lifted upward and cannot be detached from the sofa body 4 (the fitting between the male rail 32 and the female rail 33 is not released).
Further, as shown in FIG. 4, when the tip of a wooden screw 71 that penetrates the handle 16 is screwed halfway into the seat frame 10 and the handle 16 rotates in the direction of arrow B by a predetermined amount, the tree It is locked to the head of the screw 71 so as not to rotate further. Furthermore, of both ends of the shaft 13,
A stopper pin 72 is inserted into an end portion that penetrates the front wheel base 24 to prevent the stopper pin 72 from coming off.

[0026]

Second Embodiment of the Invention A sofa according to a second embodiment of the present invention is shown in FIG. This sofa is for two people, 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 pedestal 27 of the sofa body 4 (not shown) is also horizontally long, an intermediate pedestal is provided at the center of the lateral direction, and two pedestals 27 shown in FIG. 3 are arranged side by side. Also, the sofa in FIG. 9 is backrested 2
A horizontally long accommodating space is formed between the bottom of the sofa and the pedestal so that two seats 5 can be arranged side by side, and this accommodating 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 the width is slightly narrower 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 main frame is attached. The width of the two seats 5 may be the same as that shown in FIG.

A slide mechanism is also provided on the main body frame and the seat frame. This slide mechanism has two male rails attached to the bottom surface of the main body frame, two female rails attached to each of the two seats 5 set on the bottom of the body frame, as in the case of a sofa for one-person use, and both rails are attached to each other. When fitted, the seat 5 slides smoothly over the main body frame, and is prevented from swinging sideways.

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

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

[0031]

Other Embodiments of the Invention The dimensions of the accommodation space 5, the depth of the seat accommodated in the accommodation space, the slide mechanism, etc. can be arbitrarily selected. The sofa may have a capacity of three or more people. 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 back and forth steplessly according to the purpose, which is convenient for crossing or lying on the seat. (2) Instead of folding or unfolding the seat, you can slide the seat back and forth to adjust the depth of the seat, so even if you widen the depth of the seat, there is no step on the seat surface and it is flat. It is 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 sofa does not become extraordinarily long by providing the accommodation space. (4) Since the rear part of the seat is housed in the storage space under the backrest, even if the seat is longer than the seat on a normal sofa, the seat protrudes in front of the backrest for a long time during normal use. There is nothing to do, and the appearance of the sofa does not get 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 seat,
The seat slide is stable. (7) Since stoppers are provided on the body frame and seat,
The seat is stable and safe without accidentally sliding.

[Brief description of 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 in which the 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.

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

5 is a side cross-sectional view, partly omitted, showing the structure of the sofa of the present invention shown in FIG. 1. FIG.

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

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

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

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

[Explanation of symbols]

1 body frame 2 backrest 3 sleeves 4 sofa body 5 seats 6 accommodation space Bottom of 7 seats 8 casters Rear of 9 seats 10 seat frame 11 stopper 12 brackets 13 axes 14 spring 15 Operation mechanism 16 handles 17 Fixed end 18 Free end 19 Guide mechanism 20 connecting pieces

Claims (3)

(57) [Claims] 1. A sofa having the following constructions A to N: A. A sofa body (4) having a backrest (2) provided on the upper rear surface of the body frame (1) and sleeves (3) provided on both sides in the width direction of the body frame (1); A seat (5) formed separately from the sofa body (4); A storage space (6) surrounded by the back of the sofa body (4) and the sleeve (3) is provided under the backrest (2), and D. A caster (8) rotatable in the front-rear direction is attached to the front part of the bottom surface (7) of the seat (5) so as to project downward from the bottom surface (7) of the seat (5). 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 the casters (8) to be slidable in the front-rear direction. The seat (5) can be slid forward and the rear part (9)
Is pulled out forward from the accommodation space (6) and is slid rearward, the rear portion (9) is accommodated in the accommodation space (6), and G. Stop sliding the seat (5) back and forth on the body frame (1) of the sofa body (4) and the seat frame (10) of the seat (5).
A stopper (11) that can be released is provided to secure the seat frame (10).
A handle (16) is provided on the inside, and The handle (16) is seated by the person seated on the seat (5).
In front of the inside of the seat frame (10) so that you can operate it while sitting
Side, and I. The stopper (11) is a bracket (12)
A shaft (13) penetrating the bracket (12) so as to be reciprocally slidable; a spring (14) wound around the outer periphery of the shaft (13); and a spring (14) operated by the handle (16). 14) is provided with an operating mechanism (15) that can be operated in a direction in which the winding is loosened and a direction in which the winding is returned . The bracket (12) is fixed to the seat frame (10), and K. The shaft (13) slidably penetrates the bracket (12) and is fixed in the front-rear direction of the body frame (1). The outer peripheral surface of the spring (14) the shaft (13)
Closely fixed to as the axial outer peripheral winding attached to the (13), one fixed end (17) is fixed to the bracket (12), butt outside of the other free end (18) of the bracket (12) Is installed and locked to the operating mechanism (15) . The operation mechanism (15) can be operated by a person sitting on the seat (5).
When the handle (16) is operated while seated, the free end (18) of the spring (14) is operated and the handle (16) is operated .
The winding of the pulling (14) loosens, and it goes to the outer peripheral surface of the shaft (13).
The spring (14) of the
The seat (5) remains seated together with the bracket (12).
The longitudinal direction of the sofa body (4) along the axis (13)
It becomes possible to slide to N. When the above-mentioned operation of the handle (16) is released , the sp
Operation of the free end (18) of the ring (14) is released
Winding of the pulling (14) is restored and spring (14)
Fit tightly to the outer peripheral surface of the shaft (13) and the seat (5) slides.
It is locked so that it cannot be locked. 2. The sofa according to claim 1, wherein the sofa body (4) and the seat (5) are provided with a guide mechanism (19) for guiding the seat (5) sliding forward and backward. sofa. 3. The sofa according to claim 1, wherein the seat (5) has a rear portion (9) and a backrest (2).
When the seat (5) is pulled forward by connecting the lower part of the seat (5) to the lower part of the backrest (2) with a connecting piece (20), 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 the fact that it cannot be done.