JP2004305553A - Bed - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bed capable of providing a more comfortable reclining state and making a user more comfortable. <P>SOLUTION: The bed 1 has a bedclothes receiving frame 3 with a bedclothes mounting surface for mounting the bedclothes. The bedclothes receiving frame 3 comprises a non-tilted base part 7, a first movable part 8 with one end of the bed in the longitudinal direction attached to the base side of the part in such a way that the end can be folded, and a second movable part 9 on the other end side of the first movable part 8 at least to rise relative to the first movable part 8. The bed also has a receiving frame driving part D for changing the state of the bed to an extended state S, an initial reclining state R1 and a later reclining state R2. In the developed state, the bedclothes mounting surfaces of the base 7, the first movable part 8 and the second movable part 9 are positioned on the same plane. In the initial reclining state R1, the bedclothes mounting surfaces of the base part 7 and the first movable part 9 are the same flat plane, while only the second movable part 9 is raised with difference in level from the first movable part 8. In the later reclining state R2, the first movable part 8 is tilted and raised from the base part 7, while the relative positions of the first movable part 8 and the second movable part 9 are maintained. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a bed that can improve comfort.
[0002]
[Prior art]
In recent life habits, it is becoming frequent to watch television or read books while lying on a bed, and to eat light meals. In view of such a use form of the bed, for example, as shown in FIG. 9, a first tilting part b1 that can be bent in a direction of rising to a part (for example, the head side) of the bed part, and the first tilting part A bed a provided with a second tilting portion b2 that can be further bent with respect to b1 is proposed by Patent Document 1 below.
[0003]
[Patent Document 1]
JP 2003-24179 A
[0004]
In this bed a, as shown in the figure, an initial reclining state R1 in which only the second tilting part b2 is tilted in a rising direction, and the first tilting part b1 is raised while the second tilting part b2 is tilted. The state can be changed to the late reclining state R2. The user normally uses the bed a with the head placed on the second tilting part b2.
[0005]
[Problems to be solved by the invention]
However, in the conventional bed a as described above, the second tilting portion b2 is foldably connected to the first tilting portion b1. For this reason, in the initial reclining state R1, although the head can be raised, the bending angle θ of the second tilting portion b2 is set to 20 degrees or more in order to secure a certain height. In such a case, the chin is likely to be pressed because the chin is in a closed state. This tendency is particularly noticeable when using a pillow. Also, in the late reclining state R2, since the relative angle θ between the first tilting part b1 and the second tilting part b2 is maintained, the neck is similarly likely to be cramped. Thus, in the conventional bed, there is room for further improvement regarding the reclining state.
[0006]
The present invention has been devised in view of the above-described problems, and provides a more comfortable reclining state on the basis of providing the second movable portion so as to be liftable with respect to the first movable portion. Its main purpose is to provide beds that can enhance comfort.
[0007]
[Means for Solving the Problems]
The invention according to claim 1 of the present invention is a bed provided with a bedding receiving frame having a bedding placing surface on which the bedding is placed, wherein the bedding receiving frame has a non-tilt base, a bed length direction. A first movable portion having one end portion foldably attached to the base portion side, and a second movable portion provided at the other end side of the first movable portion so as to be at least ascendable with respect to the first movable portion. An extended state in which the bedding placing surfaces of the base, the first movable part, and the second movable part are coplanar; and the base and the first movable part An initial reclining state in which the bedding placing surface of the first movable portion is raised in a stepped manner relative to the first movable portion, and the first movable portion and the second A late-stage request in which the first movable portion is tilted with respect to the base portion and raised while maintaining the relative position with respect to the movable portion. It is characterized by having a receiving frame driving unit for changing to the innings state.
[0008]
The invention according to claim 2 is characterized in that, in the initial reclining state, the second movable portion is inclined at an angle of 2 to 10 degrees in a direction of descending toward the first movable portion. 1 is a bed.
[0009]
The invention according to claim 3 is characterized in that the first movable part and the second movable part are connected so as to be displaceable in the height direction and tiltable. Bed.
[0010]
According to a fourth aspect of the present invention, the first movable portion and the second movable portion may include a vertically extending tubular portion provided at the other end of the first movable portion, A movable member that is slidable up and down and that can be slid up and down. The bed according to any one of claims 1 to 3, wherein the frame drive unit pushes up the second movable unit.
[0011]
The bed according to claim 4, wherein the tubular portion is provided so as to be tiltable around a horizontal axis along the bed width direction with respect to the first movable portion. It is.
[0012]
The invention according to claim 6 is the bed according to claim 4 or 5, wherein the slide shaft is loosely inserted into the cylindrical portion with a gap.
[0013]
In the invention according to claim 7, the bedding receiving frame is supported by a bed frame positioned below the bedding receiving frame, and the receiving frame drive unit is rotatable in a vertical plane in a bed length direction, and An arm having one end pivotally connected to the bed frame, a connecting link connecting the other end of the arm with the second movable portion, and an arm attached to the bed frame and tilting the arm; The bed according to any one of claims 1 to 6, further comprising a driver that raises the second movable portion by causing the bed to move up.
[0014]
The invention according to claim 8 is characterized in that the bed frame is a pair of bed frame halves that can be bent in an inverted V-shape, and the base has a main body fixed to one of the bed frame halves. 8. The bed according to claim 7, comprising a small-length sub-portion fixed to the other bed frame half, and said arm body is attached to the other bed frame half.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 shows an exploded perspective view of a bed 1 of the present embodiment. The bed 1 according to the present embodiment has a bed frame 2 that can be bent in an inverted V-shape and a bedding receiving frame 3 that is disposed on the bed frame 2 and has a bedding placing surface m on which bedding is placed. Are provided.
[0016]
The bed frame 2 is composed of a first bed frame half 4 and a second bed frame half 5.
[0017]
The first bed frame half 4 includes a main frame 4a obtained by bending a frame material into, for example, a substantially U-shape or a rectangular shape (a U-shape in this example) in plan view, and a suitable reinforcing material 4b extending vertically and horizontally. 4c is integrally fixed. The first bed frame half 4 has a length of substantially half the bed length. The inner end of the first bed frame half 4 located at the middle portion side in the bed length direction is pivotally connected to the joint member 6 using a pin or the like. Further, on the outer end side of the first bed frame half 4, first leg members 10 are provided on both sides in the width direction of the bed.
[0018]
The first leg members 10, 10 are each composed of an inverted T-shaped leg frame 10a in this example, and caster wheels 10b attached to a lower portion thereof. The leg frame 10a is rotatably attached to the first bed frame half 4 with a pin. The first leg members 10 on both sides are integrally fixed by a connecting plate 11 extending in a bed width direction below the first bed frame half 4. Further, in the present embodiment, an example in which a royal board 13 that is finished with a finish and stands vertically is attached to the outer end of the first bed frame half 4 is illustrated. Although not particularly limited, as a preferred use example, the upper body of the user is placed on the first bed frame half 4 side.
[0019]
The second bed frame half 5 is, as in the first bed frame half 4, integrally fixed with a main frame 5a obtained by bending a frame material into a substantially U-shape and reinforcing members 5b, 5c extending vertically and horizontally. Formed. The second bed frame half 5 also has a length of about half the bed length (for example, 900 to 1000 mm). The second bed frame half 5 has an inner end located at an intermediate portion in the bed length direction pivotally connected to the joint member 6 with a pin. In the present embodiment, the first and second bed frame halves 4 and 5 are supported by separate shafts that are separated from each other in the bed length direction, but may be supported by the same shaft. A second leg member 15 is fixed to the main frame 5a of the second bed frame half 5 via a mounting shaft 14 projecting in the bed width direction. This can prevent the first and second leg members 10 and 15 from interfering with each other when folded. The second leg member 15 also serves as a handrail by a portion that protrudes from the second bed frame half 5 in the height direction, and a wheel 16 that contacts the ground is provided at an end extending downward. Thus, when folded, the first and second head frame halves 4, 5 can be smoothly moved.
[0020]
The joint members 6, 6 provided on both sides in the bed width direction are integrally fixed by a connecting plate 17, and an intermediate supporting leg 19 is fixed to the connecting member 17. The intermediate leg 19 is in contact with the floor in a horizontal state. As a result, the bed load is supported by the first and second leg members 10, 15 and the intermediate support leg portion 19, and the stability during use is enhanced. Although omitted in FIG. 1, as shown in FIG. 2, between the intermediate support 19 and the first bed frame half 4, and between the intermediate support 19 and the second bed frame half 5, Can, for example, bridge a tension spring 20, respectively, which reduces the folding effort. Since such a bed 1 pivotally supports the first bed frame half 4 at one end of the joint member 6 and the second bed frame half 5 at the other end of the joint member 6, respectively. The first bed frame half 2 and the second bed frame half 3 are folded so as to be at a vertical position to each other, so that the bed 1 can be stored compactly. At this time, the tension spring 20 reduces the operation force at the time of folding. In addition, it is possible to change the installation position of the tension spring 20 and to automatically fold and unfold the bed 1 using an electric motor or the like.
[0021]
The bedding receiving frame 3 includes a base 7 that is not tilted with respect to the head frame 2, a first movable portion 8 to which one end 8 i in the bed length direction is attached so as to be bendable on the base 7 side, On the other end 8o side of the one movable portion 8, a second movable portion 9 provided at least ascendably with respect to the first movable portion 8 is configured.
[0022]
In this example, the base 7 includes a main body 7A fixed to the second bed frame half 5 and a sub-portion 7B fixed to the first bed frame half 4 and having a smaller length than the main body 7A. It is composed of The main body portion 7A and the sub-portion 7B form a substantially continuous bedding placing surface m, though interposed through a small gap. As shown in FIG. 2, the main body 7 </ b> A has the same length as the second bed frame half 5 and has a slightly wider rectangular shape. Further, the main body 7A is fixed to a frame 7A1 obtained by bending a pipe or the like into a rectangular shape, a wire mesh-like underlaying material 7A2 arranged in a space surrounded by the frame 7A1, and a bar-shaped reinforcing material 7A3. And is integrally fixed on the second bed frame 5 using bolts or the like.
[0023]
The sub-portion 7B is formed by fixing a frame 7B1 having a U-shape in plan view, a wire mesh-like underlining 7B2 in a space surrounded by the frame 7B1, and an appropriate reinforcing material 7B3. The sub-portion 7B is also fixed to the upper portion of the first bed frame half 4 using bolts or the like. In addition, since the vicinity of the waist of the user is placed on the sub-portion 7B, it is also preferable to arrange, for example, a wood spring or the like that can further enhance the cushioning property on the upper surface portion instead of the wire mesh-like underlining material 7B2. .
[0024]
The first movable portion 8 is configured to include a frame 8A in which a pipe material or the like is connected in a horizontally-long rectangular shape, and an underlining material 8B arranged in a space surrounded by the frame 8A and capable of placing bedding. You. In addition, the one end 8i of the first movable portion 8 and the sub-portion 7B are tiltably connected to each other by using a connection fitting 21 and a pin P1, as shown in an enlarged view in FIG. The other part of the first movable part 8 is not fixed to the first bed frame half. Accordingly, the first movable portion 8 is bent with respect to the horizontal position supported by the main frame 4a of the lower first bed frame half 4 and the base 7 so that the first bed frame half 4 You can change to the position to get up. In the present embodiment, the one end 8i of the first movable portion 8 is tiltably connected to the sub-portion (base 7B). For example, the one end 8i can be tilted directly to the first bed frame half 4. May be connected.
[0025]
The second movable part 9 includes a frame 9A in which a pipe material or the like is formed in a horizontally-long rectangular shape, an underlaying member 9B arranged in a space surrounded by the frame 9A and capable of placing bedding, and a bed length direction. And the like. The other end 8o of the first movable portion 8 is arranged with a small gap in the bed length direction. Further, it is preferable that the second movable portion 9 has a length (length along the bed length direction) suitable for placing the head of the user. Although not particularly limited, for example, it is preferably formed to have a length of about 300 to 400 mm.
[0026]
In the present embodiment, in the bedding receiving frame 3, a plane including the subbing material 7A2, 7B2, 8B or 9B of each of the above-mentioned portions forms a bedding placing surface m. A mattress or the like may simply be placed on the bedding placing surface m, but preferably, as shown partially in FIG. 7, a sponge and a chip are placed on each underlining material (7A2 in this example). It is preferable that the bedding C2 made of urethane foam and other cushioning material is fixed, and further covered with the sheet-like covering cover C1 together with the frame 7A2 to be integrally formed with the bedding C2.
[0027]
Further, the bedding receiving frame 3 of the present embodiment is exemplified by one in which the second movable portion 9 and the first movable portion 8 are connected via a connector J.
[0028]
The connecting tool J connects the first movable part 8 and the second movable part 9 so that the first movable part 8 and the second movable part 9 can be displaced in the height direction and tiltable as shown in FIGS. The connecting tool J of the present example includes a vertically extending tubular portion 22 provided at the other end 8o of the first movable portion 8 and a vertically extending tubular portion 22 provided at the second movable portion 9. And a slide shaft 23 that can slide.
[0029]
The cylindrical portion 22 is fixed to the outer frame portion 8A1 extending in the bed width direction on the second movable portion 9 side of the frame 8A of the first movable portion 8 via a mounting bracket 25, for example. The mounting bracket 25 is integrally fixed to the outer frame portion 8A1 by welding, bolts, or the like, and is protruded toward the second movable portion 9 at one end. It is provided so as to be tiltable at a small angle around the shaft 25c, and further comprises a swing part 25b to which the cylindrical part 22 is fixed to the other end side.
[0030]
In the present embodiment, the mounting base 25a is a channel steel having a downward release. In addition, the swing part 25b is formed of a substantially U-shaped bracket in plan view in which vertical pieces 25b1 and 25b1 separated in the bed width direction are connected by an arc piece 25b2. In this example, the cylindrical portion 22 is welded to the inner peripheral surface of the arc piece 25b2, for example. The tubular portion 22 is made of a pipe material having a circular cross section, and extends downward without protruding from the upper surface of the frame member 8A of the first movable portion 8.
[0031]
The slide shaft 23 is fixed to the inner frame portion 9A1 extending in the bed width direction on the first movable portion 8 side of the frame 9A of the second movable portion 9 via a mounting bracket 26. The mounting bracket 26 includes a fixing piece 26a integrally fixed to the inner frame portion 9A1 by welding, bolts, or the like, and an upper piece 26b extending substantially horizontally from the upper edge of the fixing piece 26a to the upper portion of the tubular portion 22. And an L-shaped section including the following. A hole 27 is formed in the upper piece 26b. The slide shaft 23 has a shaft portion 23a having a circular cross section in this example, and a large-diameter retaining portion 23b provided at the lower end thereof. The shaft portion 23 a has an outer diameter slightly smaller than the inner diameter of the tubular portion 22, and can slide inside the tubular portion 22 smoothly. The upper end of the shaft 23a is inserted into the hole 27 and is fixed to the upper piece 26b. The retaining portion 23b can regulate the maximum sliding amount of the slide shaft 23 by contacting the lower end surface of the cylinder upper portion 22.
[0032]
In such a connection tool J, for example, when the second movable portion 9 is pushed upward, the slide shaft 23 can move up with respect to the tubular portion 22. Thus, as shown in FIGS. 3 and 4B, the second movable portion 9 can be raised with a step relative to the first movable portion 8. Then, by the stopper portion 23 </ b> B of the slide shaft 23 abutting on the lower end of the cylindrical portion 22, the relative amount of rise of the second movable portion 9 with respect to the first movable portion 8 can be regulated.
[0033]
The maximum sliding amount of the slide shaft 23 can be performed by changing the length of the shaft portion 23a. Preferably, the maximum slide amount is 30 to 100 mm, more preferably 30 to 80 mm. Then, when the second movable portion 9 is further pushed up even after the slide shaft 23 reaches the maximum slide amount, the retaining portion 13b of the slide shaft 23 raises the cylindrical portion 22. Thereby, the first movable portion 8 is lifted together with the second movable portion 9 and can be bent with respect to the base 7 around the pin P1 connected to the sub-portion 7B.
[0034]
Also, as shown in FIG. 4B, the second movable part 9 has a small angle of 2 to 10 degrees with respect to the first movable part 8 so as to descend toward the first movable part 8. can be tilted by θ. In the present embodiment, the angle θ is regulated by the vertical piece 25b1 of the swing part 25b coming into contact with the mounting base 25a. As described above, in the present embodiment, the second movable portion 9 can be restricted and tilted with respect to the first movable portion 8 at an angle θ smaller than that in the related art. In addition, in the angle θ, in addition to such tilting of the oscillating portion 25b, angular displacement caused by backlash between the cylindrical portion 22 and the slide shaft 23 (the axial center of the cylindrical portion 22 and the axial center of the slide shaft 23). Angular displacement caused by deviation from the above). However, the configuration may be such that the angle between the swing part 25b and the mounting base 25a is not restricted.
[0035]
The connecting tool J is not limited to the above specific embodiment. For example, as the cylindrical portion 22 and the slide shaft 23, a linear guide member using a linear bearing capable of performing a linear motion more smoothly without substantial backlash, or a gas damper having an urging force may be employed. .
[0036]
Further, the bed 1 of the present embodiment includes a receiving frame driving unit D that changes between an extended state S, an initial reclining state R1, and a late reclining state R2, as schematically shown in FIG.
[0037]
In the extended state S, the bedding placing surface m of the base 7, the first movable part 8, and the second movable part 9 is in the same plane (the "same plane" referred to here means a manufacturing error or Although there is a level difference caused by rattling, it includes a mechanism intended to be located on the same plane. The same applies to the following.) In the initial reclining state R1, the bedding placing surface m of the base 7 and the first movable portion 8 is in the same plane, and only the second movable portion 9 has a step with respect to the first movable portion 8. In this example and tilted at a small angle in this example. Further, in the late reclining state R2, the first movable section 8 is moved to the base 7 while substantially maintaining the relative position between the first movable section 8 and the second movable section 9 at the highest position in the initial reclining state R1. It is in a state of being tilted up and raised.
[0038]
In the extended state S, since the bed surface of the bed 1 can be horizontal, it is suitable for taking a normal sleep using a pillow. On the other hand, the initial reclining state R1 is such that only the second movable part 9 rises with a step relative to the first movable part 8 and descends at a small angle toward the first movable part. This is a particularly suitable state in the case where the user wants to gently raise his head and lie down.
[0039]
In the conventional bed a shown in FIG. 9, in order to raise the head, the second tilting portion b2 needs to be tilted at a somewhat large angle θ, more specifically, at an angle of 20 degrees or more. On the other hand, in the bed 1 of the present embodiment, in the initial reclining state R1, the second movable portion 9 can be raised with a step relative to the first movable portion 8. For this reason, the inclination of the second movable part 9 is sufficiently small at an angle θ larger than 2 degrees and about 10 degrees or less. Therefore, as shown in FIG. 7, the user's head having the head mounted on the second movable portion 9 is not pressed against the neck and the comfort of using the bed 1 can be further improved.
[0040]
It is also preferable to adjust the amount of rise of the second movable portion 8 with the connecting tool J as described above, so as to adjust the height to about 30 to 100 mm, more preferably to about 30 to 80 mm, to the height of a general pillow. it can. In this case, the same feeling as using a pillow is obtained without using a pillow, and the convenience of the bed 1 is further enhanced.
[0041]
In the late reclining state R2, the first movable section 8 is moved to the base section 7 while substantially maintaining the relative position between the first movable section 8 and the second movable section 9 at the maximum rise in the initial reclining state R1. Includes all states that have been tilted up and raised. Although not particularly limited, it is preferable that the rising angle α of the first movable portion 8 is, for example, about 50 to 60 ° at the maximum. Preferably, the first movable part 8 has a length of about 300 to 450 mm, more preferably about 350 to 450 mm. As a result, as shown in FIG. 7, the bent position of the first movable portion 8 can be positioned closer to the waist of the user, and the reclining effect can be further enhanced.
[0042]
As shown in FIGS. 1, 2 and 5, in this example, the receiving frame drive unit D is rotatable in a vertical plane in the bed length direction and has one end 30a pivotally attached to the bed frame 2. Arm members 30, 30, a connecting link 31 connecting the other end 30 b of the arm body 30 to the second movable part 9, and a driver 32 for tilting the arm body 30. Are exemplified.
[0043]
A pair of bearing pieces 34, 34 are fixed to both sides of the main frame 4a of the first bed frame half 4. A rotary shaft 35 extending in the bed width direction is rotatably supported between the bearing pieces 34, 34. One end 30a of each of the arm bodies 30, 30 is fixed to the rotating shaft 35. That is, the arms 30 are pivotally attached to the bed frame 2 (more specifically, the first bed frame half 4) via the rotation shaft 35. The other end portions 30b of the arm bodies 30, 30 extend to the shrine board 13 side. In this embodiment, the arm body 30 is disposed without interfering with the slide shaft 23 by being displaced in the bed width direction.
[0044]
As shown in FIG. 3, in the present embodiment, one end of the joint link 31 is rotatably pivotally connected to the other end 30b of the arm body 30, and the other end of the joint link 31 reinforces the second movable portion 9. It is pivotally connected to the material 9C via the metal fitting 37. In this example, the splicing link 31 includes first and second splicing links 31a and 31b having the same length. Thus, the arm body 30, the first and second joint links 31a and 31b, and the second movable portion 9 form a parallel link mechanism.
[0045]
As shown in FIG. 1, in the present embodiment, the drive unit 32 includes a main body 32a having an electric motor and the like, and a rod 32b that can freely expand and contract (appear and retract) from the main body 32a by forward and reverse rotation of the electric motor. An electric cylinder using a ball screw mechanism is exemplified. The driver 32 is arranged with the rod 32b extending along the bed length direction. Specifically, the main body 32a of the driver 32 is pivotally attached to a reinforcing member 4c of the first bed frame half 4 via a bracket or the like, and can tilt in a vertical plane. The rod 32b of the driver 32 extends toward the rotation shaft 35 and is connected to the rotation shaft 35 via a bracket 39. Therefore, by expanding and contracting the rod 32b of the driver 32, the rotation shaft 35 can be rotated, and the arm 30 can be tilted in a vertical plane.
[0046]
FIG. 6 is a schematic view of a mechanism including the receiving frame driving unit D.
The play between the cylindrical portion 22 and the slide shaft 23 is substantially negligible and can be considered as a slide pair having one degree of freedom. In this mechanism, the number of links is eight, and the number of pairs having one degree of freedom is 10, and the degree of freedom F of the mechanism of the receiving frame driving unit D is one, that is, a limiting mechanism. Also, since the prime mover is one of the drivers 32, the driving is forced. That is, the connecting link 31 lifts the second movable portion 9 by contracting the rod 32b of the driver 32 and tilting the arm body 30 counterclockwise in the drawing.
[0047]
Since the second movable portion 9 is tilted about the rotation shaft 25 as a fulcrum, the second movable portion 9 can ascend while tilting the oscillating portion 25b while sliding the slide shaft 23 with respect to the tubular portion 22. The first movable portion 8 can maintain a horizontal state placed on the bed frame 2 by its own weight. Accordingly, as shown in FIG. 6B, the second movable portion 9 can be inclined and raised while forming a step with the first movable portion 8, and the initial reclining state R1 can be obtained. At this time, it is particularly preferable that the angle θ of the inclination of the second movable portion 9 with respect to the horizontal plane is suppressed to 2 to 10 degrees as described above.
[0048]
Further, by tilting the arm body 30 counterclockwise, the retaining portion 23b of the slide shaft 23 of the second movable portion 9 comes into contact with the lower end of the cylindrical portion 22, and lifts the first movable portion 8 together. . Thereby, while the second movable portion 9 and the first movable portion 8 hold the position of the most elevated state in the initial reclining state, the first movable portion 9 is tilted with respect to the base 7 to get up. It can be continuously changed to the late reclining state R2.
[0049]
On the other hand, in the late reclining state R2, by extending the rod 32b of the driver 32, the rising angle α of the first movable part 8 is first gradually reduced, and after the angle α becomes 0 degree, the second movable part 8 The part 9 starts descending. And it can change continuously to the initial reclining state R1 and the horizontal state S. The driver 32 can be operated while the user is lying on the bed 1 using a remote controller (not shown).
[0050]
FIG. 8 shows another embodiment of the present invention.
In the present embodiment, a case where the cylindrical portion 22 is fixed to the first movable portion 8 so as not to be tilted is illustrated. Then, the cylindrical portion 22 and the slide shaft 23 are loosely inserted with the amount of play set to be sufficiently larger than in the above-described embodiment. In such an embodiment, when the second movable portion 8 is lifted, the relative angular displacement between the first movable portion 8 and the second movable portion 9 can be allowed by the play. Note that the cylindrical portion 22 may be fixed as in this example, and the slide shaft 23 may be provided on the second movable portion 9 so as to be tiltable.
[0051]
In this embodiment, an example in which the arm body 30 and the slide shaft 23 come into contact with each other in the extended state S is exemplified. In the extended state S, the slide shaft 23 is slid to the lowermost position. In this state, the lower end of the slide shaft 23 (in this example, the retaining portion 23b) is settled on the upper surface of the arm body 30. When the arm body 30 is tilted by the receiving frame driving tool D, the second movable portion 9 can be raised while being tilted with respect to the first movable portion 8 by pushing up the joint link 30 and the slide shaft 23. .
[0052]
Although the embodiment of the present invention has been described above, for example, the receiving frame driving unit D may be a manual expansion joint having a ratchet mechanism and a telescopic rod, instead of a rod type telescopic with an electric motor. It can also be used. This joint allows the rod to be extended to the position where the user has manually lifted the second movable part 9 and that position can be held by the ratchet. Thereby, it can be changed to the initial reclining state R1 or the late reclining state R2. The rod can be retracted once it has been extended to the maximum amount, thereby changing to the extended state S.
[0053]
Further, in the above-described embodiment, a preferred example in which the second movable portion 9 is used as the user's head side is shown. However, the present invention is not limited to this. For example, the first and second movable portions 8 and 9 may be used. Can be used as the foot side of the user. In this case, it is also possible to maintain the leg of the user high and improve the blood circulation of the foot by so-called foot-up. Further, in the present embodiment, the bed is a foldable type, but may be a non-foldable type bed. Further, the base 7 can be tilted or raised independently of the first and second movable parts 8 and 9. As described above, the present invention can be implemented in various forms without being limited to the above embodiments.
[0054]
【The invention's effect】
As described above, according to the first aspect of the present invention, there is provided a bed including a bedding receiving frame having a bedding placing surface on which a bedding is placed, wherein the bedding receiving frame has a non-tilting base, a bed length. A first movable portion, one end of which is bent at the base side, and a second movable portion is provided at the other end side of the first movable portion so as to be at least ascendable with respect to the first movable portion. And a second movable part. Further, the extended state in which the bedding placing surfaces of the base, the first movable portion, and the second movable portion are coplanar, the bedding placing surfaces of the base and the first movable portion are coplanar, In addition, the initial reclining state in which only the second movable part is raised at a small height with a step relative to the first movable part, and the relative position between the first movable part and the second movable part are maintained. And a receiving frame drive unit for changing the first movable unit to a late reclining state in which the first movable unit is tilted with respect to the base unit and raised.
[0055]
Therefore, various uses are possible as compared with the case where the bedding receiving frame is simply bent. In particular, by placing the user's head on the second movable part and placing the back on the first movable part, the head is lifted while reducing the pressure on the neck in the initial reclining state and the late reclining state. It becomes possible. Thereby, it is possible to obtain an optimal reclining state for watching and reading a television. In addition, in the initial reclining state, it is possible to obtain the same sleeping comfort as using a pillow without using a pillow as needed.
[0056]
In the initial reclining state, when the second movable portion is inclined at an angle of 2 to 10 degrees in a direction of descending toward the first movable portion, the second movable portion is in the initial reclining state. In a use state in which the user's head is placed on the first movable part and the back is placed on the first movable part, the pressure on the neck can be reduced more reliably, and the usability can be further improved.
[0057]
Further, the first movable portion and the second movable portion can be displaced in the height direction and connected so as to be tiltable, so that the second movable portion is formed. The first movable portion can be easily raised while generating a step.
[0058]
Further, as in the invention according to claim 4, the first movable part and the second movable part are formed by a vertically extending cylindrical part provided at the other end of the first movable part, and the second movable part The movable portion is connected to the cylindrical portion using a slide shaft that can slide up and down and that can be slid up and down and that is held and retained by the cylindrical portion at the time of maximum sliding upward. The movable part 2 can also be pushed up. In this case, the receiving frame drive section can form the step by raising only the first movable section until the shaft-like body slides upward to the maximum, and further pushes up the second movable section to form the second movable section. The first movable portion and the second movable portion can be pulled up together to tilt the first movable portion. As a result, the initial reclining state and the late reclining state can be realized continuously and easily.
[0059]
Further, as in the invention according to the fifth aspect, the cylindrical portion is provided so as to be tiltable about the horizontal axis along the bed width direction with respect to the first movable portion, and further as in the invention according to the sixth aspect. When the slide shaft is loosely inserted into the cylindrical portion with a gap, it serves to tilt the first movable portion and the second movable portion.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a bed according to an embodiment.
FIG. 2 is a plan view of a bed.
FIG. 3 is a partial perspective view showing a connection part between a first movable part and a second movable part.
FIGS. 4A and 4B are cross-sectional views of a connecting portion.
FIG. 5 is a schematic side view showing a deformed state of the bedding receiving frame.
FIGS. 6A to 6C are diagrams schematically illustrating a receiving frame driving unit.
FIG. 7 is a side view of the bed of the present invention.
FIG. 8 is a partial side view showing a connecting portion between a first movable portion and a second movable portion according to another embodiment of the present invention.
FIG. 9 is a side view of a conventional bed.
[Explanation of symbols]
1 bed
2 Bed frame
3 Bedding receiving frame
4 First bed frame half
5 Second bed frame half
7 Base
7A main part
7B subsection
8 First movable part
9 Second movable part
30 arm body
31 connection link
32 driver
D Receiving frame drive

Claims (8)

A bed provided with a bedding receiving frame having a bedding placing surface for placing bedding,
The bedding receiving frame includes a non-tilt base, a first movable portion to which one end in the bed length direction is attached to bendable at the base side, and a second movable portion at the other end side of the first movable portion. A second movable part provided at least ascendably with respect to the first movable part,
An extended state in which the bedding placing surfaces of the base, the first movable portion, and the second movable portion are coplanar;
An initial reclining state in which the bedding placing surfaces of the base portion and the first movable portion are coplanar, and only the second movable portion is raised with a step relative to the first movable portion; ,
Having a receiving frame drive unit that changes to a late reclining state in which the first movable unit is tilted and raised with respect to the base while maintaining a relative position between the first movable unit and the second movable unit. Characterized bed. 2. The bed according to claim 1, wherein in the initial reclining state, the second movable unit is inclined at an angle of 2 to 10 degrees in a direction of descending toward the first movable unit. 3. The bed according to claim 1, wherein the first movable portion and the second movable portion are connected so as to be displaceable in a height direction and tiltable. The first movable part and the second movable part are a vertically extending tubular part provided at the other end of the first movable part, and the tubular part provided at the second movable part. A connecting portion including a slide shaft which can slide the shape portion up and down and is retained and held by the cylindrical portion at the time of maximum sliding upward, and
The bed according to any one of claims 1 to 3, wherein the receiving frame drive section pushes up the second movable section. The bed according to claim 4, wherein the tubular portion is provided so as to be tiltable around a horizontal axis along a bed width direction with respect to the first movable portion. The bed according to claim 4, wherein the slide shaft is loosely inserted into the cylindrical portion with a gap. The bedding receiving frame is supported by a bed frame positioned below the bedding receiving frame,
An arm body rotatable in a vertical plane in the bed length direction and one end of which is pivotally mounted on the bed frame side;
A connecting link for connecting the other end of the arm body and the second movable portion;
The bed according to any one of claims 1 to 6, further comprising a driver attached to the bed frame and raising the second movable section by tilting the arm body. The bed frame is a pair of bed frame halves that can be bent into an inverted V shape,
And the base comprises a main body fixed to one bed frame half, and a small-length sub-portion fixed to the other bed frame half,
The bed according to claim 7, wherein the arm body is attached to the other half of the bed frame.

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