JP6912082B2 - Folding bed - Google Patents

Description

The present invention relates to a folding bed in which the sleeper portion can be folded.

Conventionally, various folding beds have been proposed having a bed portion including an upper body side sleeper portion on which the upper body side of the user is placed and a lower body side sleeper portion on which the lower body side of the user is placed. Such a foldable bed can be deformed into a horizontal state in which the upper body side sleeper portion and the lower body side sleeper portion are substantially horizontal, and a folded state in which the upper body side sleeper portion and the lower body side sleeper portion are substantially horizontal, and a folded state in which the bed is bent in an inverted V shape.

For example, in the folding bed of Patent Document 1 below, the upper body side sleeper portion includes a rising portion. Such a raised portion is configured to be deformable into a horizontal state and a reclining state in which the upper body of the user placed on the sleeper on the upper body side is raised diagonally.

Japanese Unexamined Patent Publication No. 2014-100183

In the folding bed of Patent Document 1, the pressure on the abdomen of the user is reduced by providing the first pivot axis, which is the center of inclination of the raised portion, at a specific position in the longitudinal direction of the bed. However, since this folding bed has a flat shape suitable for use in a horizontal state, the burden on the user's waist and the like increases when the folding bed is used for a long time in a reclining state. .. Therefore, further improvement is required for maintaining the posture in the reclining state.

The present invention has been devised in view of the above circumstances, and provides a folding bed that maintains a good posture of the user in a reclining state and reduces the burden on the waist and the like of the user. The main purpose is.

The present invention has a bed portion including an upper body side sleeper portion on which the upper body side of the user is placed and a lower body side sleeper portion on which the lower body side of the user is placed. A folding bed that can be transformed into a horizontal state in which the side sleeper portion is substantially horizontal and a folded state in which the side sleeper portion is bent in an inverted V shape. The upper body side sleeper portion includes a rising portion and the rising portion. Is configured to be deformable into a horizontal state and a reclining state in which the upper body side of the user placed on the upper body side bed portion is raised diagonally, and the raised portion is used by tilting to the reclining state. It is characterized in that a lumbar support protruding toward the person is provided.

In the folding bed according to the present invention, the raised portion is connected to the head-side mounting portion on which the user's head is placed and the head-side mounting portion on which the user's back is placed. The back-side mounting portion includes the back-side mounting portion, the back-side mounting portion tilts around the first pivot axis along the bed width direction, and the lumbar support is provided on the back-side mounting portion. desirable.

In the folding bed according to the present invention, when the raised portion is tilted from the horizontal state to the reclining state, the head-side mounting portion is tilted upward in advance, and the back-side mounting portion is described as described above. It is desirable that the lumbar support tilts upward with a delay from the tilt of the head-side mounting portion, and the lumbar support protrudes with a delay from the tilting of the back-side mounting portion.

In the folding bed according to the present invention, a tilting arm that tilts around a second pivot axis parallel to the first pivot axis is slidably connected to the head-side mounting portion, and the lumbar support is the first. It is tiltably supported around a third pivot parallel to one pivot and protrudes toward the user by a lumbar support protrusion, the lumbar support protrusion includes a cam and a roller, and the cam is the lumbar support. It is desirable that the roller is provided on the side opposite to the user, and the roller is attached to the tilting arm.

In the folding bed according to the present invention, it is desirable that the roller can be changed to a movable position in contact with the cam and a standby position in contact with the cam by moving the roller along the tilting arm.

In the folding bed according to the present invention, the lumbar support has a first surface portion parallel to the bed surface of the upper body side sleeper portion in a horizontal state of the rising portion and a first surface portion orthogonal to the first surface portion and the first surface portion. It is desirable to include a pair of second surface portions located on both sides in the bed width direction of the bed.

In the folding bed according to the present invention, the lumbar support is tiltably supported around a third pivot parallel to the first pivot, and is further located on the side opposite to the third pivot of the first surface portion. It is desirable to include a three-sided portion.

In the folding bed according to the present invention, it is desirable that the first surface portion has a plate-shaped portion having a flat surface and a plurality of through-hole portions formed in the plate-shaped portion.

In the folding bed according to the present invention, the width of the lumbar support is preferably 35% to 70% of the width of the upper body side bed portion.

In the folding bed of the present invention, the upper body side sleeper portion includes a rising portion, and the rising portion can be deformed into a horizontal state and a reclining state in which the upper body side of the user placed on the upper body side sleeper portion is raised diagonally. It is configured. Such an upper body side sleeper portion can assist the user in raising the upper body side at an angle and can maintain the posture in a state where the user's upper body side is raised.

In the folding bed of the present invention, the raised portion is provided with a lumbar support that protrudes toward the user when tilted to the reclining state. Such a raised portion keeps the user's posture in a good state by pressing the vicinity of the user's waist from the back side when the user uses it in the reclining state, and attaches it to the user's waist or the like. The burden can be reduced.

It is a perspective view which shows one Embodiment of the folding bed in a horizontal state of this invention. It is a side view of a folding bed in a horizontal state. It is a side view of a folding bed in a folded state. It is a perspective view of a folding bed in a reclining state. It is an enlarged perspective view of a lumbar support. It is a partial perspective view of a rising part. It is a schematic diagram which shows the tilting state of a rising part. (A) is a state in which the head-side mounting portion is tilted, (b) is a state in which the back-side mounting portion is tilted, and (c) is a state in which the lumbar support is projected. It is an enlarged side view which shows the standby position of a roller. It is a perspective view of the disassembled folding bed.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a perspective view of the horizontal folding bed 1 of the present embodiment, and FIG. 2 is a side view of the horizontal folding bed 1. As shown in FIGS. 1 and 2, the folding bed 1 of the present embodiment includes a bed portion 2 including a bed surface 2A on which a user is placed, a bed frame 3 on which the bed portion 2 is placed, and a bed frame. It has a leg portion 4 that supports 3.

Further, the folding bed 1 of the present embodiment includes a headboard 5 attached to one side in the bed length direction, a footboard 6 attached to the other side, and a pair of side grips 7 attached to both sides in the bed width direction. have. In the present specification, the headboard 5 side of the folding bed 1 is the upper body side S1 of the user, and the footboard 6 side is the lower body side S2 of the user.

The bed portion 2 of the present embodiment includes an upper body side sleeper portion 8 on which the upper body side S1 of the user is placed, and a lower body side sleeper portion 9 on which the lower body side S2 of the user is placed.

FIG. 3 is a side view of the folding bed 1 in the folded state. As shown in FIGS. 2 and 3, the bed portion 2 of the present embodiment has a horizontal state in which the upper body side sleeper portion 8 and the lower body side sleeper portion 9 are substantially horizontal and the upper body side sleeper portion 9 in the side view of the bed. The 8 and the lower body side bed portion 9 are configured to be deformable into a folded state in which the bed portion 9 is bent in an inverted V shape.

The horizontal state and the folded state of the sleeper portion 2 are deformed with the upper body side sleeper portion 8 and the lower body side sleeper portion 9 in the reference state. This reference state is a state in which the bed surface 2A of the upper body side sleeper portion 8 and the lower body side sleeper portion 9 is parallel to the bed length direction of the bed frame 3. When the folding bed 1 of the present embodiment is deformed into the folded state, the headboard 5, the footboard 6 and the pair of side grips 7 are removed.

FIG. 4 is a perspective view of the folding bed 1 in the reclining state. As shown in FIG. 4, the upper body side sleeper portion 8 of the present embodiment includes a rising portion 10 that is movable with respect to the bed frame 3.

As shown in FIGS. 2 and 4, the raised portion 10 of the present embodiment can be deformed into a horizontal state and a reclining state in which the upper body side S1 of the user placed on the upper body side bed portion 8 is raised diagonally. It is configured.

The upper body side sleeper portion 8 including such a rising portion 10 can assist the user to raise the upper body side S1 at an angle and can maintain the posture in a state where the user's upper body side S1 is raised. ..

As shown in FIG. 4, it is desirable that the rising portion 10 is provided with a lumbar support 14 that projects toward the user side by tilting to the reclining state. Such a rising portion 10 keeps the user's posture in a good state by pressing the vicinity of the user's waist from the back side by the lumbar support 14 when the user uses it in the reclining state. It is possible to reduce the burden on the lower back and the like.

The rising portion 10 is, for example, a head-side mounting portion 10A on which the user's head is placed and a back-side mounting portion 10A connected to the head-side mounting portion 10A and on which the user's back is placed. Part 10B and the like may be included.

In this case, in the deformation of the rising portion 10 from the horizontal state to the reclining state, the back-side mounting portion 10B of the rising portion 10 is tilted around the first pivot axis 11 along the bed width direction, for example. Further, it is desirable that a tilting arm 15 that tilts around the second pivot axis 12 parallel to the first pivot axis 11 is slidably connected to the head-side mounting portion 10A of the rising portion 10.

The lumbar support 14 is provided, for example, on the back side mounting portion 10B. It is desirable that the lumbar support 14 be tiltably supported around a third pivot 13 parallel to the first pivot 11. The third pivot 13 of the present embodiment supports the head side mounting portion 10A side of the lumbar support 14.

FIG. 5 is an enlarged perspective view of the lumbar support 14. As shown in FIGS. 1 and 5, the lumbar support 14 includes, for example, a first surface portion 14A which is plate-shaped and is parallel to the bed surface 2A of the upper body side sleeper portion 8 in a horizontal state of the rising portion 10. There is. The lumbar support 14 also includes a pair of second surface portions 14B that are orthogonal to the first surface portion 14A and are located on both sides of the first surface portion 14A in the bed width direction. The lumbar support 14 further includes a third surface portion 14C located on the opposite side of the first surface portion 14A from the third pivot 13.

In such a lumbar support 14, since all the portions protruding from the rising portion 10 are composed of surface members, there is no possibility of pinching bedding or the like in the protruding operation and the pulling operation of the lumbar support 14 from the rising portion 10.

The first surface portion 14A has a plate-shaped portion 14a having a flat surface and at least one, preferably a plurality of through-hole portions 14b formed in the plate-shaped portion 14a. The through hole portion 14b of the present embodiment has a long hole shape that is long in the bed width direction, but the shape of the through hole portion 14b is, for example, a circular hole shape even if it is a long hole shape that is long in the bed longitudinal direction. There may be. The lumbar support 14 including such a first surface portion 14A can achieve both rigidity and breathability.

As shown in FIG. 4, the width W1 of the lumbar support 14 is preferably 35% to 70% of the width W2 of the upper body side sleeper portion 8. Such a lumbar support 14 presses the vicinity of the user's waist even when the user is using the bed other than the central position while maintaining the rigidity required to press the vicinity of the user's waist. can do.

FIG. 6 is a partial perspective view of the rising portion 10. As shown in FIG. 6, the lumbar support 14 of the present embodiment is pushed by a pair of lumbar support protrusions 16 by tilting the rising portion 10 to the reclining state, and is pushed from the back side mounting portion 10B to the user side. Protruding into. Each lumbar support protrusion 16 includes, for example, a cam 17 and a roller 18.

The cam 17 of the present embodiment is provided integrally with the lumbar support 14 on the back surface side of the lumbar support 14, that is, the surface opposite to the user. The cam 17 has, for example, a cam surface 17A with which the rollers 18 are in contact. By adjusting the shape of the cam surface 17A of the cam 17, the amount of protrusion of the lumbar support 14 is changed according to the tilt angle of the rising portion 10.

The roller 18 of the present embodiment is attached to the tilting arm 15 via the roller support portion 18A. It is desirable that the roller support portion 18A is detachably attached to the tilting arm 15 by a connecting member such as a pin. Such a roller 18 can be easily moved along the tilting arm 15 by removing the connecting member of the roller support portion 18A.

FIG. 7 is a schematic view showing a tilted state of the rising portion 10. As shown in FIG. 7A, when the raised portion 10 of the present embodiment is tilted from the horizontal state to the reclining state, the head side mounting portion 10A is tilted upward in advance. As shown in FIG. 7B, it is desirable that the back-side mounting portion 10B tilts upward after the tilt of the head-side mounting portion 10A. Such a rising portion 10 raises the upper body side S1 of the user at an angle in the same order as when the user gets up by himself / herself, so that the burden on the user's body is reduced.

As shown in FIG. 7 (c), the lumbar support 14 of the present embodiment projects behind the tilt of the back-side mounting portion 10B. As shown in FIG. 8B, it is desirable that the lumbar support 14 starts the projecting operation when the rising portion 10 is tilted to a predetermined angle θ. The angle θ at which the projecting operation is started is preferably 20 ° to 40 °. Since such a lumbar support 14 can change the amount of protrusion according to the tilt angle of the rising portion 10, the pressing strength in the vicinity of the waist portion of the user can be changed according to the reclining state of the rising portion 10.

FIG. 8 is an enlarged side view showing the standby position of the roller 18. As shown in FIG. 8, by moving the roller 18 along the tilting arm 15, the movable position in contact with the cam 17 as represented by the alternate long and short dash line and the cam 17 as represented by the solid line. It is configured to be changeable to a standby position that does not come into contact with. The roller 18 in the standby position does not come into contact with the cam 17 regardless of the tilt angle of the rising portion 10. By attaching such a roller 18 to the standby position, it is possible to bring the rising portion 10 into a reclining state without projecting the lumbar support 14.

It is desirable that a mat (not shown) made of a cushioning material such as urethane foam is provided on the bed surface 2A of the bed portion 2. For example, the mat may be integrally provided from the upper body side sleeper portion 8 to the lower body side sleeper portion 9, or may be divided into two or more.

FIG. 9 is a perspective view of the disassembled folding bed 1. As shown in FIGS. 1 and 9, in the bed frame 3 of the present embodiment, the upper body side frame 19 on which the upper body side sleeper portion 8 is placed and the lower body side frame 20 on which the lower body side sleeper portion 9 is placed are placed. And is included. It is desirable that the upper body side frame 19 is provided with an actuator (not shown) for reclining the rising portion 10.

As shown in FIG. 9, a headboard 5 is detachably attached to the upper body side frame 19 of the present embodiment. The headboard 5 is attached / detached, for example, by engaging the slit-shaped first engaging portion 5a provided on the headboard 5 side with the second engaging portion 19a provided on the upper body side frame 19 side. .. It is desirable that the first engaging portion 5a and the second engaging portion 19a are fixed by, for example, a retaining pin or the like so as not to be unexpectedly disengaged at the time of engagement.

A footboard 6 is detachably attached to the lower body side frame 20 of the present embodiment. The footboard 6 is attached / detached, for example, by engaging the slit-shaped third engaging portion 6a provided on the footboard 6 side with the fourth engaging portion 20a provided on the lower body side frame 20 side. .. It is desirable that the third engaging portion 6a and the fourth engaging portion 20a are fixed by, for example, a retaining pin or the like so as not to be unexpectedly disengaged at the time of engagement.

It is desirable that the upper body side frame 19 and the lower body side frame 20 each have a fifth engaging portion 21 that can be attached by selectively inserting the side grips 7 on both sides in the bed width direction. Each fifth engaging portion 21 of the present embodiment includes two hole portions 21a. It is desirable that the side cover 22 having a U-shaped cross section is attached to the fifth engaging portion 21.

The side cover 22 includes, for example, a first surface 22A and a second surface 22B facing each other, and a third surface 22C connecting the first surface 22A and the second surface 22B. When the first surface 22A of the side cover 22 of the present embodiment is mounted on the fifth engaging portion 21, a through hole 22a is formed at a position corresponding to the two holes 21a of the fifth engaging portion 21. Has been done.

Therefore, by mounting the side cover 22 with the first surface 22A facing upward, the side grip 7 can be mounted with the side cover 22 mounted. Further, the side cover 22 can cover the fifth engaging portion 21 to which the side grip 7 is not attached by mounting the side cover 22 with the second surface 22B facing upward.

As shown in FIGS. 2 and 3, the leg portion 4 of the present embodiment includes a plurality of wheel members 23 that horizontally movably support the bed frame 3 with respect to the floor surface F, and a bed with respect to the floor surface F. It includes a plurality of non-wheel members 24 that hinder the movement of the frame 3. Such a wheel member 23 helps to smoothly deform the sleeper portion 2 between the horizontal state and the folded state. Further, the non-wheel member 24 can prevent the bed portion 2 from moving with respect to the floor surface F of the folding bed 1 in a horizontal state.

The wheel member 23 of the present embodiment takes off when the sleeper portion 2 is in the horizontal state, and is in contact with the ground when the sleeper portion 2 is in the folded state. On the other hand, the non-wheel member 24 of the present embodiment touches the ground when the sleeper portion 2 is in the horizontal state, and takes off when the sleeper portion 2 is in the folded state.

For example, the leg portion 4 can change the member that comes into contact with the floor surface F from the non-wheel member 24 to the wheel member 23 by deforming the bed portion 2 from the horizontal state to the folded state. Further, the leg portion 4 can change the member that comes into contact with the floor surface F from the wheel member 23 to the non-wheel member 24 by, for example, deforming the bed portion 2 from the folded state to the horizontal state.

Therefore, the folding bed 1 in which the bed portion 2 is arranged in a horizontal state is unlikely to move horizontally with respect to the floor surface F due to the wheel member 23. Such a folding bed 1 is difficult for the user to move with respect to the floor surface F in which the bed portion 2 is arranged in a horizontal state, and the user can use it with peace of mind.

Although the particularly preferable embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments and can be modified into various embodiments.

1 Folding bed 2 Sleeper part 8 Upper body side sleeper part 9 Lower body side sleeper part 10 Rise part 14 Lumber support

Claims (9)

It has a sleeper portion including an upper body side sleeper portion on which the upper body side of the user is placed and a lower body side sleeper portion on which the lower body side of the user is placed.
A folding bed that can be transformed into a horizontal state in which the upper body side sleeper portion and the lower body side sleeper portion are substantially horizontal and a folded state in which the bed is bent in an inverted V shape when viewed from the side of the bed.
The upper body side sleeper portion includes a rising portion and includes a rising portion.
The raised portion is configured to be deformable into a horizontal state and a reclining state in which the upper body side of the user placed on the upper body side sleeper portion is raised diagonally.
The raised portion is provided with a lumbar support that protrudes toward the user when tilted to the reclining state .
The lumbar support protrudes toward the user by the lumbar support protrusion.
The lumbar support protrusion includes a cam and a roller.
The cam is provided on the side opposite to the user of the lumbar support.
The roller can be changed to a movable position that contacts the cam and a standby position that does not contact the cam.
The roller in the standby position is a folding bed that does not come into contact with the cam regardless of the tilt angle of the raised portion.
The raised portion includes a head-side mounting portion on which the user's head is placed and a back-side mounting portion connected to the head-side mounting portion and on which the user's back is mounted. Including
The back resting portion tilts around the first pivot along the width direction of the bed.
The folding bed according to claim 1, wherein the lumbar support is provided on the back side mounting portion. When the raised portion is tilted from the horizontal state to the reclining state, the head-side mounting portion is tilted upward in advance.
The back-side mounting portion tilts upward after the tilt of the head-side mounting portion.
The folding bed according to claim 2, wherein the lumbar support projects with a delay from the tilt of the back-side mounting portion. A tilting arm that tilts around the second pivot axis parallel to the first pivot axis is slidably connected to the head-side mounting portion.
The lumbar support is tiltably supported around a third pivot parallel to the first pivot.
The third axis supports the head side mounting portion side of the lumbar support.
The folding bed according to claim 2 or 3, wherein the roller is attached to the tilting arm via a roller support portion.
The roller support portion is detachably attached to the tilting arm by a coupling member.
The roller, the by Remove the coupling member of the roller supporting portion is moved along the tilting arm, before and hear turned position, before Kimachi machine according to claim 4 can be changed to the position Folding bed.
The lumbar support is located on both sides of the first surface portion parallel to the bed surface of the upper body side sleeper portion in the horizontal state of the rising portion, orthogonal to the first surface portion, and in the bed width direction of the first surface portion. The folding bed according to any one of claims 2 to 5, which includes a pair of second surface portions.
6. The claim 6 includes the lumbar support that is tiltably supported around a third pivot parallel to the first pivot and further includes a third surface portion of the first surface portion that is located on the opposite side of the third pivot. The listed folding bed. The folding bed according to claim 6 or 7, wherein the first surface portion has a plate-shaped portion having a flat surface and a plurality of through-hole portions formed in the plate-shaped portion. The folding bed according to any one of claims 1 to 8, wherein the width of the lumbar support is 35% to 70% of the width of the upper body side sleeper portion.

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