JPH07327779A - Bed device - Google Patents

Abstract

PURPOSE:To provide a bed device, in which the structure for making a user keep a posture, with the upper half of the body raised is simplified. CONSTITUTION:A bed device has a frame 1 where a mattress is placed on the upper surface thereof. The bed device comprises a fixture 51 mounted on one end part of the frame, an arm 62 connected to the fixture in such a manner that the lower end part is rotatable within a designated range, and a reclining unit which is formed in such a manner as to be freely bent in the middle part in the direction of height, and the back side of which is connected to the upper end part of the arm positioned above the mattress in such a manner as to be rotatable in a designated range.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bed apparatus which allows a user to easily take a posture of raising the upper body on a mattress.

[0002]

2. Description of the Related Art Generally, a bed apparatus has a bed frame formed in the shape of a rectangular frame, and a mattress is placed on the bed frame. When the user is an elderly person or a sick person and is physically handicapped, there is a case where the user eats without getting off the mattress. In such cases,
The user tries to take an upper body position on the mattress.

In addition, when the above-mentioned user moves on the mattress with the upper body raised, if there is an armrest when moving the buttocks on the mattress, the elbows should be hooked there to raise the buttocks. Because it is possible, it may be easier to move.

Conventionally, in order to allow a user to easily take a posture in which the upper half of the body is raised on the mattress, one end portion of the floor plate erected on the bed frame for placing the mattress can be undulated. A bed device is known.

In the bed apparatus having the above structure,
If one end of the floor plate is raised at a predetermined angle while bending the mattress, the user leans against the raised floor plate and can easily maintain the posture of raising the upper body.

By the way, according to the bed apparatus having such a structure, a drive source such as a motor and a power transmission mechanism for transmitting the power of the drive source to one end of the floor plate in order to undulate one end of the floor plate. Is required.

Since the drive source and the power transmission mechanism are expensive, the cost of the bed apparatus may be increased, and the structure may be complicated and the weight may be increased.
In addition, if the structure is such that one end of the floorboard is simply raised, it can be used for maintaining the posture of the upper body of the user, but cannot be used for other purposes such as armrests. There is a thing.

[0008]

As described above, in the conventional bed apparatus, in order to allow the user to easily maintain the posture in which the upper half of the body is raised, a part of the floor board is constructed so that it can be raised and lowered. Since a part of the floor was driven by a drive source to undulate, not only could cost increase and complication of the configuration, but also the posture that the user raised the upper part of the raised floorboard. Sometimes it couldn't be used for any purpose other than to lean on to maintain.

The present invention has been made based on the above circumstances, and an object thereof is not only to use a drive source but also to simply maintain a posture in which a user is in an upright position. Another object is to provide a bed apparatus that can be used as an armrest.

[0010]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention relates to a bed apparatus having a frame on which a mattress is placed, the fitting being attached to one end of the frame. An arm whose lower end is rotatably connected within a predetermined range to the attachment, and a bendable halfway part in the height direction, and the arm is located above the mattress. A leaning body having a rear surface connected to the upper end portion so as to be rotatable within a predetermined range is provided.

[0011]

According to the above construction, if the arm is rotated with its lower end as a fulcrum and the leaning body provided at the upper end is positioned above one end of the mattress, the user can move the arm to the side. It is possible to lean on the leaning body, and by folding the leaning body from the middle part while being positioned above one end of the mattress, the upper surface of the folded portion can be used as an armrest.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 8 show an embodiment of the present invention, and the bed apparatus of the present invention shown in FIGS. 2 and 3 has a bed frame 1. A mattress 2 is placed on the upper surface of the bed frame 1.

At one longitudinal end of the base body 1, as shown in FIG. 4, an intermediate side of two lower support members 51 (only one is shown) in which both end portions of a strip-shaped plate are bent in an L shape is formed. Are fixed at predetermined intervals in the width direction of the. As shown in FIG. 5A, a plurality of recesses 52 are formed at predetermined intervals along the circumferential direction at both ends of the lower support tool 51, and engaging pins 53 are provided so as to project. An attachment hole 54 is formed in the center of the recess 52 arranged in a circle.

A disk-shaped lower ratchet plate 55 is rotatably connected to the mounting hole 54 by a connecting pin 56. As shown in FIG. 5B, a plurality of convex portions 57 are formed on the lower ratchet plate 55 along the circumferential direction at predetermined intervals, and notches 58 are formed within a predetermined range in the circumferential direction. Has been done.

The lower ratchet plate 55 has a convex portion 57.
Is attached to the concave portion 52 of the first receiving portion 53, and is attached by the connecting pin 56 in a state in which the engaging pin 53 is positioned in the cutout portion 58. As shown in FIG. 4, the connecting pin 56 includes the lower ratchet plate 5
A spring washer 59 is provided to press 5 into pressure contact with the first receiving portion 53.

Therefore, since the projection 57 of the lower ratchet plate 55 elastically engages with the recess 52 of the first receiving portion 53, the lower ratchet plate 55 rotates with a predetermined resistance and the engaging pin 53 has a notch 58. By engaging with, it is possible to rotate at an angle within the range of the cutout portion 58.

A lower connecting piece 61 is connected to the lower ratchet plate 55, and the lower connecting piece 61 is fixed to the lower end of an arm 62 formed by bending a pipe material in an arc shape. An upper connecting piece 60 is fixed to the upper end of the arm 62 as shown in FIG. 6 (c). This upper connecting piece 6
A disk-shaped upper ratchet plate 63 having a plurality of convex portions 63a formed at a predetermined interval in the circumferential direction is fixed to 0.

Although not shown in detail, both ends of an L-shaped upper support member 64 are rotatably connected to the upper ratchet plate 63 by connecting pins 65, like the lower support member 51. There is. As shown in FIG. 6 (b), recesses 66 are formed at predetermined intervals along the circumferential direction at one end of the upper support 64, and a mounting hole 64a is formed at the center thereof. It is attached by the connecting pin 65 through the attachment hole 64a. A spring washer (not shown) is provided on the connecting pin 65, and the convex portion 63a and the concave portion 66 are elastically pressed against each other by the spring washer.

A cutout 66 is formed in the upper ratchet plate 63.
Are formed in a predetermined range in the circumferential direction, and the upper support 64
An engaging pin 67 that engages with the cutout portion 66 and limits the rotation angle thereof is provided at the end of the projection.

The middle portion of the upper support 64 is connected and fixed to the rear surface of the leaning body 69. This leaning body 69
As shown in FIG. 1, the frame 71 and the frame 7
Cushion part 72 such as urethane foam covering 1
And an exterior material 73 that covers the cushion portion 72.

In the leaning body 69, as the arm 62 rotates about the lower support 51 as a fulcrum, a chain line is drawn from the retracted position located above the end of the mattress 2 as shown by the solid line in FIG. It can be displaced to the forward position shown. That is, the leaning body 69 can be displaced above the mattress 2 along its length.

Moreover, since the leaning body 69 is rotatable with respect to the arm 62 within a predetermined range, the leaning body 69 is inclined from the substantially vertical state shown by the solid line in FIG. It can be rotated within the range.

The frame 71 of the leaning body 69 is shown in FIG.
As shown in FIG. 5, it is divided into an upper portion 71a and a lower portion 71b. Both ends in the width direction of the upper portion 71a and the lower portion 71b are connected by a hinge mechanism 80, and a plurality of belts 74 are stretched along the width direction.

The hinge mechanism 80 has a first arm 82 and a second arm 83 connected by a support shaft 81 as shown in FIG. A tooth 84 is formed at one end of the first arm 82, and the tooth 8 is formed at one end of the second arm 83.
4 is pivotally mounted by a stopper pin 86, and is biased by a spring 87 in a direction in which it engages with the teeth 84.

A cam plate 88 is rotatably attached to the support shaft 86. A concave portion 89 and a convex portion 91 are formed on the outer peripheral surface of the cam plate 88 at a predetermined angle in the circumferential direction. The radial dimension of the convex portion 91 from the spindle 81 is larger than the radial dimension of the tooth 84. Also,
An engaging body 92 is provided at one end of the first arm 82 so as to face the recess 89 when the stopper 85 is engaged with the tooth 84.

According to the hinge mechanism 80 having the above structure, the engagement between the teeth 84 and the stopper 85 causes the first arm 8 to move.
2 can be held at a predetermined rotation angle with respect to the second arm 83. If the first arm 82 is rotated in the direction shown by the arrow in FIG. 8 and the cam plate 88 is interlocked with the rotation by the engaging body 92 that abuts on one end of the recess 89, this cam plate The stopper 85 rides on the convex portion 91 of 88 and disengages from the tooth 84.
The frame 82 can be freely rotated in the direction opposite to the arrow. In the rotation in this direction, the engagement body 92 contacts the other end of the recess 89 to rotate the cam plate 88, and the stopper 85 is rotated.
Can be rotated until it disengages from the convex portion 91 of the cam plate 88 and engages with the tooth 84, that is, until the first arm 82 is substantially straight with respect to the second arm 83. it can.

That is, by using the hinge mechanism 80A having the above structure, the upper portion 71a of the frame 71 forming the leaning body 69 can be held at a predetermined rotation angle with respect to the lower portion 71b. It is like this.

On the lower portion 71b of the frame 71 of the leaning body 69, as shown in FIGS. 1 and 7, a mounting plate 95 is installed along the width direction thereof. The upper support 64 is attached to the mounting plate 95 so as to be exposed from the cushion portion 72 covering the frame 71.

According to the bed apparatus having the above-described structure, if the pair of leaning bodies 69 are set in a substantially vertical state at the retracted position, these leaning bodies 69 can be used for headboard or leaning. .

One or both of the pair of leaning bodies 69 are displaced from the retracted position to the forward position by rotating the arm 62 to which they are attached, and in this state, the leaning bodies 69 are shown in FIG. If the user tilts the upper half of the body on the mattress 2, the leaning body 69 can easily lean on the leaning body 69 by inclining it so that it is directed obliquely upward as shown by the chain line.

When one leaning body 69 is located at the forward position and is inclined obliquely upward, the upper portion 71a thereof is bent rearward so as to be substantially horizontal as shown in FIG. A user who has raised his / her upper body on the mattress 2 and leans on the other leaning body 69 has the upper portion 7 of the one leaning body 69 bent substantially horizontally.
1a can be used as an armrest.

When the user leans on the leaning body 69 and raises the upper half of the body, and there is an armrest on the side of the leaning body 69, when the buttocks are moved, the leaning body 69 is hung on the elbows to move the buttocks. Since it can be levitated relatively easily by itself, it can be moved easily.

With the leaning body 69 standing upright almost vertically at the retracted position, the frame 71 as shown by the chain line in FIG.
When the upper portion 71a is bent rearward from the retracted position so as to be substantially horizontal, the upper surface of the upper portion 71a can be used as a mounting surface for mounting various small items.

9 and 10 (a), (b) show a modification of the hinge mechanism 80A of another embodiment of the present invention. In the hinge mechanism 80A of this embodiment, one end of the hinge mechanism 80A is fixed to the widthwise end of the lower portion 71b of the frame 71 of the leaning body 69. A strip-shaped second connecting plate 113 fixed to the widthwise end of the upper portion 71a of the frame 71, the first and second connecting plates 112,
The other end of 113 includes an intermediate plate 115, both ends of which are pivotally supported by a support shaft 114.

Both ends of the intermediate plate 115 have a first
Are formed on the disc portion 116 and the second disc portion 117. First disk portion 11 to which the first connecting plate 112 is connected
The first notch 118 is formed in the peripheral portion of 6 in the range of about 75 degrees in the circumferential direction, and the second notch 119 is formed in the range of about 90 degrees in the circumferential direction on the periphery of the second disk portion 117. Are formed.

A first engaging shaft 120 that engages with the first cutout 118 is provided on the first connecting plate 112 so as to project therefrom.
The connecting plate 113 of the second notch 119 engaging with the second notch 119
The engaging shaft 121 of is projected. First engagement shaft 120
Is in contact with one end of the first notch 118 when the intermediate plate 115 is aligned with the first connecting plate 112, and the second engaging shaft 121 is second connecting plate with respect to the intermediate plate 115. 11
3 is slightly tilted counterclockwise and is in contact with one end of the second notch 119.

Therefore, in the intermediate plate 115 and the second connecting plate 113, the first and second engaging shafts 120 and 121 have the first and second notches 118 and 119 as shown by the chain line in the figure. It can be rotated clockwise as indicated by the arrow until it abuts on the other end. That is, the intermediate plate 115
Rotates about 75 degrees with respect to the first connecting plate 112, and the second connecting plate 113 rotates about 90 degrees with respect to the intermediate plate 115. Therefore, since the sum of the rotation angles of these two is 165 degrees, the second connecting plate 113 is rotated to an approximately parallel state in which it is inclined at an angle of about 15 degrees with respect to the first connecting plate 112. Can be made.

Although not shown in detail, the frame 71 of the leaning body 69 in the case of using the hinge mechanism 80A is composed of an upper portion 71a and a portion 71b, and a lower portion 71b thereof, as in the above embodiment. An attachment plate 95 to which the upper support 64 is attached is installed on the above.

The leaning body 69 using the hinge mechanism 80A having the above-described structure is placed on the frame 71 in a state in which the leaning body 69 is displaced to the forward position as shown by the chain line in FIG. If the part 71a is folded in a substantially inverted U shape,
The user can use the upper surface as an armrest,
It is also possible to lean on the folded leaning body 69 and maintain the posture of raising the upper half of the body.

The present invention is not limited to the above embodiments and can be modified in various ways. For example, the leaning body is divided into two in the width direction of the frame, but one leaning body having a length substantially equal to the width dimension of the frame may be provided. Further, when the bed device is a double size, three or four leaning bodies may be provided, and the number thereof is not limited at all.

[0041]

As described above, according to the present invention, the middle portion in the height direction is formed at the upper end of the arm whose lower end is rotatably connected within the predetermined range to the frame of the bed. A leaning body that can be bent from the inside is rotatably connected within a predetermined range.

Therefore, the arm is held at a predetermined rotation angle, and the user leans on the leaning body attached to the other end of the arm, so that the upper body can be easily raised. If the leaning body is bent, the upper surface of the leaning body can be used as an armrest.

[Brief description of drawings]

FIG. 1 is a sectional view of a leaning body showing an embodiment of the present invention.

FIG. 2 is a side view of the bed apparatus.

FIG. 3 is a perspective view of the same.

FIG. 4 is a cross-sectional view of a connection structure between the fitting and the bed frame.

FIG. 5 is an explanatory view of a connecting structure of the mounting tool and the arm.

FIG. 6 is an explanatory view of a connecting structure of the arm and the leaning body.

FIG. 7 is a plan view of the frame of the leaning body.

FIG. 8 is a side view of the hinge mechanism.

FIG. 9 is a side view of a bed apparatus showing another embodiment of the present invention.

FIG. 10A is a front view of the hinge mechanism, FIG.
Is also a side view.

[Explanation of symbols]

1 ... Bed frame, 2 ... Mattress, 51 ... Attachment, 62 ... Arm, 69 ... Leaning body.

Claims (1)

[Claims] 1. A bed apparatus having a frame on which a mattress is placed on an upper surface, and a fitting attached to one end of the frame,
An arm whose lower end is rotatably connected within a predetermined range to the attachment and a bendable halfway part in the height direction are located above the mattress of the arm. A bed apparatus, comprising: a leaning body having a rear surface connected to an upper end thereof so as to be rotatable within a predetermined range.