JP2001070097A - Mat wherein part of mat main body can be formed into back rest with arbitrary angle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mat wherein a part of a mat main body which can be used by exactly and easily controlling angle of a back rest and is compact and inexpensive can be formed into the back rest with an arbitrary angle. SOLUTION: A driving mechanism 5 wherein an actuating lever 54 is forwarded and retreated by means of a main mechanism part 51 is fitted so as to link the apex of the actuating lever 54 with a back rest frame part 21 on the back side of a mat frame embedded type mat main body 1 wherein a mat frame 2 with a pivotable back rest frame part 21 is embedded into a cushioning material 3 (3b) and the whole body is covered with a cover 4. In this case, when the driving mechanism 5 is worked by operating a switch, a part of the head side of the mat main body 1 wherein at ordinary case, the driving mechanism 5 is embedded into the mat main body 1 through the back side part of the cover 4 and grounded under a horizontal posture is controlled at an arbitrary angle as a back rest part 11 and the driving mechanism 5 left grounded below this back rest part 11 works as a stay for preventing it from being inclined backward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mat which can be used as a bed mat, a floor mat or a seating chair, and which can be partly formed as a backrest portion at an arbitrary angle.

[0002]

2. Description of the Related Art Many mats such as bed mats, floor mats, and chairs have a structure in which a part of the mat body can be formed in a backrest portion at an arbitrary angle. The adjustment of the angle of the backrest portion in this type of mat is usually a manual operation, so that the operation is troublesome. There is also a commercially available electric bed in which the backrest support portion of the bed frame main body is placed on the buttocks and the mat body is mounted on a bed frame that is adjustable in angle with respect to the support portion so that the backrest angle of the mat can be adjusted. However, the bed frame, in which the backrest support portion of the bed frame main body rests on the buttocks and the angle can be freely adjusted with respect to the support portion, has a complicated structure and is large-scale, so that the use place is limited and the cost is high. There is such a problem.

[0003]

The object of the present invention is to solve the above-mentioned conventional problems, and to accurately set the backrest angle not only on a bed frame but also on a tatami mat, a flooring or any other place. An object of the present invention is to provide a mat which can be easily adjusted and used, is compact, inexpensive, and can form a part of a mat body having a good appearance on a backrest portion at an arbitrary angle.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the mat according to the present invention, in which a part of the mat body can be formed in a backrest portion having an arbitrary angle, has a backrest frame portion which is pivotable. On the back side of the mat frame embedded type mat body in which the mat frame is embedded in a cushion material and the whole is covered with a cover, a driving mechanism in which an operating rod is advanced and retracted by a main mechanism portion is provided with a tip of the operating rod and the driving mechanism. When the drive mechanism is operated by a switch operation, the drive mechanism is normally immersed in the mat body via the back side portion of the cover and grounded in a horizontal posture when the drive mechanism is operated by a switch operation A part of the head side of the mat body is adjusted to an arbitrary angle as a backrest portion, and the drive mechanism left under the backrest portion while being grounded acts as a stay for preventing backward tilt. A basic configuration of those characterized.
Further, in such a mat, the back side portion of the cover, which is in contact with the drive mechanism, is formed of a reinforced elastic ground which is more excellent in elasticity and wear resistance than other portions.
According to these inventions, in these inventions, the one in which a hollow portion capable of accommodating the drive mechanism is formed on the back side of the cushion material is the invention according to claim 3, and in each of the above-mentioned inventions, the mat body is A folding mat in which a first mat on the head side and a second mat on the leg side, in which the back portion is pivotable, are arranged in abutting manner and the lower ends of both are hingedly connected by a hinge. The invention according to item 4,
The mat frame according to the present invention comprises a first mat frame on the head side in which the backrest frame is connected to the buttocks frame, and a second mat frame on the leg in which the upper limbs frame is connected to the lower limbs frame. The first mat frame is embedded in a first cushion material, and the whole is covered with a first cover to form a head-side first mat whose backrest can be freely adjusted in angle with respect to the buttocks rest portion, while the second mat is formed. The mat frame is embedded in the second cushion material and the whole is covered with the second cover to form a second mat on the leg side in which the upper limb resting portion can be bent with respect to the lower limb rest portion. The invention according to claim 5, wherein the two mats are connected to each other so as to obtain a folded state where the bottom surfaces of the two mats are in contact with each other, and the mats are mainly used.
Furthermore, in each of the above-mentioned inventions, the main mechanism of the drive mechanism is such that a rotatable screw rod extending to the leg side via a gear reduction mechanism is connected to an electric motor built in the case, The invention according to claim 6, wherein the female rod tube is screwed to the screw rod to form an operating rod extending toward the leg side, wherein the tip of the operating rod of the drive mechanism is provided in the above-described invention according to claims 4 to 6. The leg end of the lower limb placing portion of the second mat on the leg side is always connected by a string material having a sufficient length, and the backrest angle of the backrest portion of the mat body is more than a certain value by driving the driving mechanism. When the cord material is reached, the string material becomes tense, and when the driving mechanism is further continued, the lower limb placing portion of the second mat is pulled toward the head side via the cord material to form a mountain shape with the lower limb placing portion and the upper limb placing portion. What is formed is the invention according to claim 7.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings. Reference numeral 1 denotes a mat frame embedded type mat body in which a mat frame 2 is embedded in a cushion material 3 and a cover 4 is covered on the mat member. In this embodiment, the mat body 1 is
The head-side first mat 1a and the leg-side second mat 1b, which are made independently, are arranged side by side, and the lower ends of the butted portions are connected by hinges 6 to form a folding mat.

The above-mentioned mat frame 2 has a similar mat receiving surface on a backrest frame portion 21 having a mat receiving surface formed by stretching a narrow belt material in a lattice shape in the frame. The first mat frame 2a on the head side in which the formed buttocks placing frame portion 22 is connected by a pivot 25 so that the backrest frame portion 21 can be raised and lowered around the pivot 25, and a mat receiving surface similar to the above. U-shaped upper limb placing frame 2 formed with
3, the legs of a U-shaped lower limb placing frame 24 having the same mat receiving surface as described above are connected to each other by a pivot 26, and the upper limb placing frame 23 and the lower limb placing frame 2 around the pivot 26.
4 and a second mat frame 2b on the leg side, which is pivotable. The backrest frame portion 21 of the first mat frame 2a is a horizontal U-shape, but the backrest frame portion 22 is formed of the backrest frame portion 21 described above.
The horizontal upper frame rods 22a, 22a connected to the second mat frame, which will be described later, are connected to the horizontal upper frame rods 22a, 22a.
and c are interposed therebetween.

[0007] By embedding the first mat frame 2a in the first cushion material 3a and covering the whole with a first cover 4a, the tilt angle of the backrest portion 11 with respect to the hip rest portion 12 can be changed. First mat 1a
On the other hand, by embedding the second mat frame 2b in the second cushioning material 3b and covering the whole with the second cover 4b, the lower limb placing portion 14 and the upper limb placing portion 13 are bent into a low mountain shape. Side second mat 1b. Then, the first mat 1a and the second mat 1b obtained in this manner are arranged in abutting manner and the butt placement frame portion 22 of the first mat frame 2a embedded in the first mat 1a.
The base of the lower frame portion 22b having a U-shape and the second mat 1
a suitable number of hinges 6 with the base of the U-shaped upper limb placing frame 23 of the second mat frame 2b embedded in the second mat frame 2b.
From the use state in which the first mat 1a and the second mat 1b are horizontally extended by connecting with the back of the first mat 1a and the second mat 1b.
The mat body 1 is a foldable mat that can be switched to a folded state in which the back surface of the mat 1b is in contact with the mat.

[0008] The first of the cushion members 3
On the back side of the cushion material 3a, a central portion thereof is notched long in the front-rear direction, and is formed in a hollow portion 31 large enough to accommodate a driving mechanism 5 described later. In addition, this hollow part 31
Is covered with the first cover 4a that covers the first mat 1a, and is therefore always concealed, and the bottom surface of the first mat 1a has a planar appearance in appearance. The cover 4 may be entirely sewn with the same material, but the central portion of the first cover 4a of the first mat 1a, which is in contact with the drive mechanism 5, is tougher than the other portions 42. It is preferable to form this portion with a reinforced elastic ground 41 having excellent elasticity mainly in the front-rear direction and to reinforce this portion.

Reference numeral 5 denotes an electric drive mechanism having one end attached to the leg side of the first mat frame 2a of the mat frame 2 so as to be incorporated into the back surface of the mat body 1. This drive mechanism 5 is used. Is driven by the operation of the hand switch S placed at a position where the user can operate, and the backrest frame 21 is pivoted about a pivot 25 which is a connection point with the buttocks resting frame 22, and the back of the mat body 1 is This is for adjusting the backrest angle of the backrest 11 to an arbitrary angle. In addition,
The illustrated drive mechanism 5 includes an elongated U-shaped support frame 52 having one end attached to the leg-side back surface of the buttocks rest portion 11 of the mat body 1, and a main mechanism portion 51 supported by the support frame 52. When the mat body 1 is horizontal and normal, the drive mechanism 5 is grounded with the support frame 52, and the main mechanism 51 is housed in the cushion material 3 via the cover 4 so that the mat body 1 and the drive mechanism 5 Both bottom surfaces are substantially the same surface, but when the backrest 11 is erected, the drive mechanism 5 is left on the support frame 52 while being grounded, and the drive mechanism 5 protrudes toward the head side from the buttocks resting portion 12, and when the backrest is used. It acts as a stay to prevent backward tilt.

The main mechanism 51 is formed by connecting a rotatable screw rod extending to the leg side via a gear reduction mechanism to an electric motor (not shown) built in the case 53. A female screw tube is screwed into the threaded rod to form an operating rod 54 extending toward the leg side, and the tip of the operating rod 54 is connected via the link 9 to the backrest frame portion 22 of the mat frame 2.
A part of the head side of the mat body 1 is adjusted and held at an arbitrary angle as a backrest 11 by driving the electric motor. Reference numeral 55 denotes a cover that covers the upper surface of the driving mechanism 5 excluding the operating rod 54.

Further, one end of a cord material 8 is connected to the movable rod 54 of the drive mechanism 5 which is movable forward and backward, and the other end is a second mat 1b on the leg side on the back side of the mat body 1.
When the backrest angle of the backrest part 11 of the mat body 1 reaches a certain angle or more by the drive of the drive mechanism 5, the cord material 8 is tensioned, and then the drive mechanism is further driven. 5 continues to be driven, the second
The lower leg placing portion 14 of the mat 1b is pulled toward the head side with the assistance of the casters 7 on the lower surface of the leg ends, and the lower leg placing mat portion 24 and the upper leg placing mat portion 23 of the second mat 1b are bent into a low mountain shape. It is to be done.

With the above-described structure, the mat body 1 is composed of a first mat 1a on the head side and a second mat 1b on the leg side.
When the mat main body 1 is used on a floor or a bed frame having no angle adjusting function in a state where the mat main body 1 is horizontally extended, the driving mechanism 5 is immersed in the mat main body 1 via the back side portion of the cover 4. The mat body 1 can be used in the same manner as a conventional mat of this type, but when it is desired to adjust the backrest angle, the mat body 1 is attached to the backrest frame portion 21 by the backrest frame portion 22. The mat frame 2 pivotally connected is embedded in the cushion material 3 and the cover 4 is covered on the cushion frame 3 so that the angle of the backrest 12 with respect to the buttocks 11 can be adjusted. In addition, only the backrest frame 21 of the mat frame 2 embedded in the mat body 1 is driven by the operation of the hand switch S on the back side of the mat body 1 and is connected to the buttocks frame portion 22. The drive mechanism 5 that pivots from the point and thereby arbitrarily adjusts the backrest angle of the backrest portion 12 of the mat body 1 connects the tip of the operating rod to the leg side of the butt-rest frame portion 22 of the mat frame 2. The backrest angle of the backrest portion 11 is set in the hand switch S
Can be adjusted to an arbitrary angle only by operating.

Further, the drive mechanism 5 directly incorporated in the mat body 1 is provided below the backrest portion 11 when a part of the head side of the mat body 1 is adjusted to an arbitrary angle as the backrest portion 11. It remains stable and acts as a stay for preventing backward tilt, so it is stable. In addition, since the drive mechanism 5 is directly incorporated in the mat body 1, it can be used anywhere and used. Compared with a bed frame in which a backrest angle adjusting mechanism is incorporated, the structure is extremely simple, the size can be reduced, and the bed frame can be provided at low cost. The drive mechanism 5 is not limited to the above-described one, and may be a fluid pressure cylinder or the like, as long as the operating rod is moved forward and backward by the main mechanism. Assuming that a rotatable threaded rod extending to the leg side is connected to the electric motor built in 53 via a gear reduction mechanism, an internal thread tube is screwed to the threaded rod and extended toward the leg side. The actuating rod 54, which is configured such that the distal end of the actuating rod 54 is locked to the link 9 and is connected to the leg side of the backrest frame 22 of the mat frame 2 via the link 9, is compact and more compact. It is particularly preferable because the backrest angle can be finely adjusted.

In the case where the hollow portion 33 capable of accommodating the electric drive mechanism 5 is formed on the back side of the cushion material 3, the mat body 1 is composed of a first mat 1a on the head side and a second mat 1b on the leg side. When placed on a floor or a bed frame having no angle adjusting function as a normal state in which the cushioning member 3 is horizontally extended, the driving mechanism 5 on the back side of the mat body 1 can be moved even if the elasticity of the cushioning material 3 is insufficient. Since the surface of the mat body 1 does not swell partially due to being immersed in the back side of the mat body 1, the appearance is good. What is formed by the reinforced elastic ground 42 which is excellent in elasticity and abrasion resistance has an advantage that it can be used for a long time without being damaged from the contact portion with the drive mechanism 5 even when used repeatedly. The backrest 11 The head side being freely pivoted 1
If the mat 1a and the second mat 1b on the leg side are arranged in abutting manner and the lower ends of both are foldably connected by a hinge 6, the mat can be folded in two in a mating manner and transported and stored. It is convenient.

Further, the distal end of the operating rod 54 of the drive mechanism 5 and the leg end of the lower limb placing portion 23 of the second mat 1b on the leg side are always connected by a string material 8 having a sufficient length, and the drive is performed. When the backrest angle of the backrest portion 11 of the mat body 1 reaches a certain angle or more by the driving of the mechanism 5, the string material 8 is tensioned. After that, when the driving mechanism 5 is further driven, the second mat via the string material 8 is used. 1b, in which the lower limb placing portion 14 is pulled toward the head side to form a chevron with the lower limb placing portion 14 and the upper limb placing portion 13, the angle between the lower limb placing portion 14 and the upper limb placing portion 13 is changed. The legs can be held at an easy angle when the backrest is placed without providing a special mechanism for the backrest, so that it is more comfortable to use.

[0016]

As is apparent from the above description, the present invention provides a mat frame embedded type mat in which a mat frame whose backrest frame is pivotable is embedded in a cushion material and the whole is covered with a cover. On the back side of the main body, a drive mechanism for moving the operating rod forward and backward by the main mechanism is attached by connecting the tip of the operating rod and the backrest frame, and when the drive mechanism is operated by a switch operation. Normally, the drive mechanism is immersed in the mat body via the back side portion of the cover, and a part of the head side of the mat body which is grounded in a horizontal posture is adjusted to an arbitrary angle as a backrest portion. The drive mechanism, which is left grounded below the floor, acts as a stay to prevent backward tilt, so it can be used not only on the bed frame but also on the floor such as tatami mats and flooring and anywhere. It can be used as a normal mat, of course, and it can be used by adjusting the backrest angle to any angle easily and easily with the simple operation of operating the hand switch, and it is compact and has a good appearance In addition, there is an advantage that it can be provided at low cost. Therefore, the present invention has a very large mat that contributes to the industry as a mat that solves the problems of the conventional mat and the bed in which the backrest angle can be adjusted.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a preferred embodiment of the present invention.

FIG. 2 is a cross-sectional view for explaining a preferred embodiment of the present invention.

FIG. 3 is a sectional view for explaining a preferred embodiment of the invention shown in a mode different from that of FIG. 1;

FIG. 4 is a partially cutaway perspective view of a mat frame according to a preferred embodiment of the present invention.

FIG. 5 is an exploded perspective view of a driving mechanism according to a preferred embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mat body 1a 1st mat 1b 2nd mat 11 Backrest part 12 Butt rest part 13 Upper limb rest part 14 Lower limb rest part 2 Mat frame 2a 1st mat frame 2b 2nd mat frame 21 Backrest frame part 22 Butt rest frame part 23 Upper limb placing frame portion 24 Lower limb placing frame portion 3 Cushion material 3a First cushion material 3b Second cushion material 31 Cavity 4 Cover 4a First cover 4b Second cover 41 Reinforced telescopic ground 5 Drive mechanism 51 Main mechanism 54 Operating rod 6 Hinge 8 String 9 Link 10 Bracket

[Procedure amendment]

[Submission date] September 3, 1999 (1999.9.3)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 5

[Correction method] Change

[Correction contents]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Claim 7

[Correction method] Change

[Correction contents]

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction contents]

Reference numeral 5 denotes an electric drive mechanism having one end attached to the leg side of the first mat frame 2a of the mat frame 2 so as to be incorporated into the back surface of the mat body 1. This drive mechanism 5 is used. Is driven by the operation of the hand switch S placed at a position where the user can operate, and the backrest frame 21 is pivoted about a pivot 25 which is a connection point with the buttocks resting frame 22, and the back of the mat body 1 is This is for adjusting the backrest angle of the backrest 11 to an arbitrary angle. In addition,
The illustrated drive mechanism 5 includes an elongated U-shaped support frame 52 having one end attached to the leg-side back surface of the buttocks rest portion 12 of the mat body 1, and a main mechanism portion 51 supported by the support frame 52. When the mat body 1 is horizontal and normal, the drive mechanism 5 is grounded with the support frame 52, and the main mechanism 51 is housed in the cushion material 3 via the cover 4 so that the mat body 1 and the drive mechanism 5 Both bottom surfaces are substantially the same surface, but when the backrest 11 is erected, the drive mechanism 5 is left on the support frame 52 while being grounded, and the drive mechanism 5 protrudes toward the head side from the buttocks resting portion 12, and when the backrest is used. It acts as a stay to prevent backward tilt.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Change

[Correction contents]

The main mechanism 51 is formed by connecting a rotatable screw rod extending to the leg side via a gear reduction mechanism to an electric motor (not shown) built in the case 53. A female screw tube is screwed into the threaded rod to form an operating rod 54 projecting toward the leg side, and the tip of the operating rod 54 is connected to the backrest frame 21 of the mat frame 2 via the link 9.
A part of the head side of the mat body 1 is adjusted and held at an arbitrary angle as a backrest 11 by driving the electric motor. Reference numeral 55 denotes a cover that covers the upper surface of the driving mechanism 5 excluding the operating rod 54.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction contents]

Further, one end of a cord material 8 is connected to the movable rod 54 of the drive mechanism 5 which is movable forward and backward, and the other end is a second mat 1b on the leg side on the back side of the mat body 1.
The leg rest portion 14 to have been cooperative in loose state, cord material 8 when the back rest angle reaches above a certain backrest 11 of the mat main body 1 by driving the driving mechanism 5 is tense, then further drive mechanism 5 continues to be driven, the second
The lower limb placing portion 14 of the mat 1b is pulled toward the head under the assistance of the casters 7 on the lower surface of the leg ends, and the lower limb placing frame portion 24 and the upper limb placing frame portion 23 of the second mat 1b are bent into a low mountain shape. It is to be done.

[Procedure amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction contents]

With the above-described structure, the mat body 1 is composed of a first mat 1a on the head side and a second mat 1b on the leg side.
If you use it on a floor or a bed frame that does not have an angle adjustment function when it is horizontally extended,
Although the body 1 is intended to be grounded in a state in which the drive mechanism 5 is retracted into the mat main body 1 through the rear portion of the cover 4 normally usable similarly to the prior art of this type of mat, backrest angle When it is desired to adjust the height, the mat body 1 embeds the mat frame 2 in which the backrest frame portion 21 is pivotally connected to the frame portion 22 and is pivotally connected to the frame portion 22, covers the cover member 4 with the mat frame 2, and covers the rear end portion with the cover portion 4. In addition to the mat frame embedded type in which the angle of the backrest portion 11 with respect to the mat 12 can be adjusted, the mat body 1 is embedded in the mat body 1 by being driven by the operation of a hand switch S on the back side. Only the backrest frame portion 21 of the mat frame 2 is pivoted from the connection point with the buttocks resting frame portion 22, whereby the drive mechanism 5 that arbitrarily adjusts the backrest angle of the backrest portion 11 of the mat body 1 is provided. Work Since incorporated the tip of the rod as a state of being connected to the leg side of the butt frame portion 22 mat frame 2, the backrest angle hand switch S of the backrest portion 11
Can be adjusted to an arbitrary angle only by operating.

[Procedure amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0013

[Correction method] Change

[Correction contents]

Further, the drive mechanism 5 directly incorporated in the mat body 1 is provided below the backrest portion 11 when a part of the head side of the mat body 1 is adjusted to an arbitrary angle as the backrest portion 11. It remains stable and acts as a stay for preventing backward tilt, so it is stable. In addition, since the drive mechanism 5 is directly incorporated in the mat body 1, it can be used anywhere and used. Compared with a bed frame in which a backrest angle adjusting mechanism is incorporated, the structure is extremely simple, the size can be reduced, and the bed frame can be provided at low cost. The drive mechanism 5 is not limited to the above-described one, and may be a fluid pressure cylinder or the like, as long as the operating rod is moved forward and backward by the main mechanism. Assuming that a rotatable threaded rod extending to the leg side is connected to the electric motor built in 53 via a gear reduction mechanism, an internal thread tube is screwed to the threaded rod and extended toward the leg side. The actuating rod 54 is such that the tip of the actuating rod 54 is locked to the link 9 and connected to the leg side of the backrest frame 21 of the mat frame 2 via the link 9, which is compact and It is particularly preferable because the backrest angle can be finely adjusted.

[Procedure amendment 8]

[Document name to be amended] Statement

[Correction target item name] 0014

[Correction method] Change

[Correction contents]

In the case where the hollow portion 31 capable of accommodating the electric drive mechanism 5 is formed on the back side of the cushion material 3, the mat body 1 is composed of a first mat 1a on the head side and a second mat 1b on the leg side. When placed on a floor or a bed frame having no angle adjusting function as a normal state in which the cushioning member 3 is horizontally extended, the driving mechanism 5 on the back side of the mat body 1 can be moved even if the elasticity of the cushioning material 3 is insufficient. Since the surface of the mat body 1 does not swell partially due to being immersed in the back side of the mat body 1, the appearance is good. What is formed by the reinforced elastic ground 42 which is excellent in elasticity and abrasion resistance has an advantage that it can be used for a long time without being damaged from the contact portion with the drive mechanism 5 even when used repeatedly. The backrest 11 The head side being freely pivoted 1
If the mat 1a and the second mat 1b on the leg side are arranged in abutting manner and the lower ends of both are foldably connected by a hinge 6, the mat can be folded in two in a mating manner and transported and stored. It is convenient.

[Procedure amendment 9]

[Document name to be amended] Statement

[Correction target item name] 0015

[Correction method] Change

[Correction contents]

Further, the distal end of the operating rod 54 of the drive mechanism 5 and the leg end of the lower limb placing portion 14 of the second mat 1b on the leg side are always connected by a string material 8 having a sufficient length to drive. When the backrest angle of the backrest portion 11 of the mat body 1 reaches a certain angle or more by the driving of the mechanism 5, the string material 8 is tensioned. After that, when the driving mechanism 5 is further driven, the second mat via the string material 8 is used. 1b, in which the lower limb placing portion 14 is pulled toward the head side to form a chevron with the lower limb placing portion 14 and the upper limb placing portion 13, the angle between the lower limb placing portion 14 and the upper limb placing portion 13 is changed. The legs can be held at an easy angle when the backrest is placed without providing a special mechanism for the backrest, so that it is more comfortable to use.

Claims (7)

[Claims] A mat frame embedded type mat body in which a mat frame (2) in which a backrest frame portion (21) is rotatable is embedded in a cushion material (3) and the whole is covered with a cover (4). Behind (1), the main mechanism (51)
A drive mechanism (5) for moving the (54) forward and backward is attached by connecting the tip of the operating rod (54) and the backrest frame (21) to operate the drive mechanism (5). And the driving mechanism (5) is always moved by the mat body (1) through the back side of the cover (4).
A part of the head side of the mat body (1) immersed in and grounded in a horizontal posture is adjusted to an arbitrary angle as a backrest (11), and is grounded below the backrest (11). A mat in which a part of the mat body can be formed on a backrest portion having an arbitrary angle, wherein the drive mechanism (5) left as it is acts as a stay for preventing backward inclination. 2. A portion of the cover (4) that comes into contact with the drive mechanism (5) is formed of a reinforced elastic ground (41) that has better elasticity and wear resistance than other portions (42). A mat capable of forming a part of the mat body according to claim 1 in a backrest portion having an arbitrary angle. 3. A driving mechanism (5) on the back side of the cushion material (3).
The mat according to claim 1 or 2, wherein a hollow portion (31) capable of accommodating the same is formed, and a part of the mat body can be formed into a backrest portion at an arbitrary angle. 4. A mat body (1) in which a first mat (1a) on the head side and a second mat (1b) on the leg side, in which the backrest portion (11) is rotatable, is abutted. Side by side, hinge the lower ends
The mat according to any one of claims 1 to 3, wherein the mat body can be formed into a backrest portion having an arbitrary angle. 5. The mat frame (2) is connected to a backrest frame (21).
First mat frame on the head side connected to the frame part (22)
(2a) and a second mat frame (2b) on the leg side in which the upper limb placing frame (23) is connected to the lower limb placing frame (24).
The mat frame (2a) is embedded in the first cushioning material (3a), the whole is covered with the first cover (4a), and the backrest (11) is adjustable in angle with respect to the hip rest (12). First mat (1a)
On the other hand, the second mat frame (2b) is embedded in the second cushion material (3b), the whole is covered with the second cover (4b), and the upper limb placing portion (13) is moved relative to the lower limb placing portion (14). The first mat (1a) and the second mat (1b) on the leg side can be folded so that the bottom surfaces of the two mats are in contact with each other. The mat according to claim 4, wherein a part of the mat body is connected to the mat main body (1) to form a backrest portion at an arbitrary angle. 6. A main mechanism portion (51) of a drive mechanism (5) has a rotatable screw rod extending to a leg side via a gear reduction mechanism connected to an electric motor built in a case (53). A part of the mat body according to any one of claims 1 to 6, wherein an operating rod (54) is formed by screwing a female thread tube to the threaded rod and projecting toward the leg side. A mat that can be formed on the backrest at any angle. 7. A cord material in which the tip of the operating rod (54) of the drive mechanism (5) and the leg end of the lower limb placing portion (24) of the second mat (1b) on the leg side always have extra length. When the backrest angle of the backrest part (11) of the mat body (1) reaches a certain angle or more by the drive of the drive mechanism (5), the cord (8) is tensioned, and When the drive mechanism (5) continues to be driven, the lower limb placing portion (13) of the second mat (1b) is pulled toward the head side via the cord (8), and the lower limb placing portion (13) and the upper limb placing portion are pulled. The mat according to any one of claims 4 to 6, wherein a part of the mat body can be formed on the backrest portion at an arbitrary angle.