JP3226493B2 - Rollaway bed - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a cot.

[0002]

2. Description of the Related Art Conventionally, in order to save space when not in use, a front bed half on which an upper body is placed as a foldable bed and a rear bed half on which a lower body is placed are freely foldable into an inverted V-shape in side view. We were connected.

[0003]

However, in the conventional foldable bed, when the other half of the front bed half is erected by the ratchet mechanism when folded, it interferes with the palace and is folded. There was a problem that can not be. Furthermore, when the folded bed is unfolded, there is a danger that a finger may be pinched near the pivot. Therefore, the present invention can be folded even when the front half of the front bed half is erected by the ratchet mechanism, and when folded, the front bed half can be easily folded without swinging more than necessary. It is an object of the present invention to provide a foldable bed which can be folded and has no fear of pinching a finger in the vicinity of a pivot when the folded bed is deployed.

[0004]

In order to achieve the above-mentioned object, a folding bed according to the present invention comprises a front bed half on which an upper body is placed and a rear bed half on which a lower body is placed, which is turned upside down in a side view. In a foldable bed pivotally connected so as to be freely foldable in a character shape, the pivotally connected portion is connected to an outer wall portion and the outer wall portion.
The central axis is located parallel to the outer wall and at the lower center
An inner wall portion having a rectangular notch portion through which
A cross-section in which the upper portions of the outer wall portion and the inner wall portion are continuously connected in a bridge shape
And a safety cover comprising an arc-shaped upper wall .

[0005] Further, in a folding bed in which a front bed half on which an upper body is placed and a rear bed half on which a lower body is placed are pivotally connected in an inverted V-shape when viewed from the side ;
Connect the tied pivot site to the outer wall and parallel to the outer wall.
And the center axis is inserted through the lower central part.
An inner wall having a notch, the outer wall and the inner wall
An upper wall portion having an arc-shaped cross-section in which the upper portion of the portion is continuously connected in a bridge shape,
Cover both ends of the center leg.
It is arranged inside the side edge of the door .

[0006] Also, from the bed side edge to the left and right ends of the center leg.
Assuming that the distance at is L, 30 mm ≦ L ≦ 100 mm is set.
Is what it is.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing embodiments.

FIG. 1 shows a side view of a foldable bed according to the present invention, wherein a front bed half 1 on which an upper body is placed and a rear bed half 2 on which a lower body is placed are freely folded into an inverted V-shape in side view. Has been pivotally linked. The front bed half 1 is composed of a front frame 3 having a U-shape in a plan view, a plate fixed to the front frame 3 and a front mat 4 made of cotton, cloth or the like. Is a U-shaped rear frame 5 in plan view.
And a rear mat 6 made of cotton, cloth or the like, which is fixed on the frame 5 afterwards. Both ends of the front frame 3 are inserted from the front into pivot members 7, 7 as shown in FIG. 2, and both ends of the rear frame 5 are inserted into the pivot members 7, 7 from the rear. Further, the outside is covered with safety covers 8, 8 as shown in FIG. 3, and shaft members 9, 9 such as bolts or pins are inserted through them and fixed.

Specifically, the pivoting member 7 shown in FIG. 2 includes an outer wall portion 12 having a front hole 10 and a rear hole 11 and the outer wall portion 12.
Inner wall portion 15 having a front hole 13 and a rear hole 14
And a bottom wall 16 continuously connected in a bridge shape at the center of the lower surface of the side wall portion. The safety cover 8 shown in FIG. 3 includes an outer wall 17 and an inner wall facing the outer wall 17 in parallel.
And an upper wall portion 19 having an arc-shaped cross section in which the upper portions of the side wall portions are continuously connected in a bridging manner. Outside wall of safety cover 8
17 has a front hole 20 corresponding to the front hole 10 of the pivot member 7 and a rear hole 21 corresponding to the rear hole 11 of the pivot member 7. The inner wall portion 18 of the safety cover 8 has a front hole 22 corresponding to the front hole 13 of the pivoting member 7 and a rear hole 23 corresponding to the rear hole 14 of the pivoting member 7. It has a rectangular notch 24 in the center.

The front frame 3 and the rear frame 5 have pivot holes at both ends. Then, the shaft member 9 is inserted through the front hole 20, the front hole 10, the pivot hole of the front frame 3, the front hole 13, and the front hole 22 in order from the outside, and the front frame 3 and the pivot member 7 are connected to each other. The safety cover 8 is pivoted. In addition, the shaft member 9 is inserted through the rear hole 21, the rear hole 11, the pivot hole of the rear frame 5, the rear hole 14, and the rear hole 23 in order from the outside, and the rear frame 5 and the pivot member 7 are The safety cover 8 is pivoted.

FIG. 11 shows a comparative example, in which a front bed half 53 consisting of a front frame 51 and a front mat 52 and a rear bed half 56 consisting of a rear frame 54 and a rear mat 55 are connected to a pivoting member 57. Are connected. In this case, when unfolding the bed from the bed folded state, there is a possibility that a finger may be pinched near the pivot. However, in the folding bed according to the present invention, since the pivot portion is covered with the safety cover 8 as described above, there is no risk of pinching a finger in the vicinity of the pivot as described above, which is safe.

4, 5 and 6, a pair of left and right pivot members 7, 7 are connected to each other by a central shaft 25. That is, the pivot members 7, 7 are fixed to both ends of the central shaft 25 by welding or the like. The U-shaped central leg 26 in front view
Both ends 26a, 26a are fixed to the center shaft 25 by welding or the like. When the bed is deployed, the center leg 26 comes into contact with the floor surface to support the load applied to the bed.

Both ends 26a of the center leg 26 are disposed inside the side edges of the bed. For example, if the distance from the bed side edge to each of the left and right ends 26a of the center leg 26 is L, 30 mm
≦ L ≦ 100 mm. However, in the present invention, the “bed side edge” is defined as the side edge of the front frame 3 and the rear frame 5. As shown by a two-dot chain line in FIG. 6, when L is smaller than 30 mm, when the bed is folded, the distance between the center leg 26 and the front frame 3 or between the center leg 26 and the rear frame 5 is reduced. When L is larger than 100 mm, the stable support force on the left and right sides of the bed is weakened.

Next, as shown in FIGS. 1, 4 and 5,
On the front edge of the front bed half 1, a shrine board 27 is protruded in an upright manner. Specifically, a spacer is provided on the front edge of the front frame 3.
Curved gate-shaped mounting pipe 29 extending vertically upward through 28
The shrine plate 27 is attached to the upper inner surface side of the attachment pipe 29. The inner surface of the shroud 27 is provided so as to be located forward of the front edge of the front mat 4 in plan view. That is, as shown in FIG. 1, the spacer 28 serves to adjust the inner surface of the shroud plate 27 so as to be located on the front side of the front edge of the front mat 4 in plan view.

The front mat 4 has a ratchet mechanism capable of bending about half of the front mat 4 in a multi-stage upright state.
30 inside (see FIG. 1). As shown in FIG. 12, if the inner surface of the shrine plate 58 is behind the front edge of the front mat 59, the ratchet mechanism 60 is bent, and when it is attempted to undulate about half the front of the front mat 59, The front edge of the front mat 59 collides with the palace 58 and cannot be bent to any undulating state. However, in the present invention, as shown in FIG. 7, it is possible to bend the ratchet mechanism 30 so that the front half of the front mat 4 can be bent to an arbitrary undulating state (without hitting the shrine board 27). It is.

In FIG. 1, a pair of left and right front supports 31, 31 for supporting the front bed half 1 is provided on the side edge near the front end of the front frame 3.
31 is pivoted. The front support leg 31 includes a column portion 32, a horizontal portion 33 provided below the column portion 32 and extending in the front-rear direction, and a horizontal portion.
Casters provided at the lower front end and the lower rear end of 33
Consists of 34,34. The pair of left and right pillar portions 32, 32 are connected to each other at a middle portion in the height direction by a horizontal girder member 35 extending in the left and right direction.

As shown in the comparative example of FIG. 13, when the palace 63 is provided integrally from the upper end of the column portion 62 of the front support leg 61, the bed can be folded when the ratchet mechanism 64 is bent. Can not. In other words, when trying to fold the bed with the ratchet mechanism 64 bent, the front mat 65
And the shingle 63 come into contact, and the bed cannot be folded any further. However, in the present invention, as shown in FIG. 8, the palace 27 is provided integrally with the front frame 3, so that the bed can be completely folded even when the ratchet mechanism 30 is bent.

In FIGS. 9 and 1, the horizontal girder member 35 for connecting the pair of left and right pillars 32, 32 of the front support leg 31 has a structure in which the front bed half 1 is in a vertical shape when the bed is folded. And also serves as a swing restricting member 46 (for maintaining the vertical position). As in the comparative example of FIG. 14, without the swing regulating member, when the bed is folded, the front end 67 of the front bed half 66 tilts too much toward the rear bed half 68, so that
The position of 69 is not fixed in a vertical shape, and it is shaky. However, in the present invention, as shown in FIG. 9, when the bed is folded, the front bed half 1 comes into contact with the front frame 3 and the swing regulating member 46 just in the vertical position and stops. Keep a stable vertical posture.

As shown in FIG. 1, FIG. 4 and FIG. 5, on the inner surfaces of the upper portions of the pillar portions 32 of the front support leg 31, there are provided support members 36, 36 such as pin-shaped or bent pieces. In a horizontally deployed state, the member 36 is disposed at a position close to (or in contact with) the lower surface of the front frame 3, and the front support leg 31 is configured to fold the bed in FIG. Prevents unintended rotation clockwise during operation and deployment.

In FIG. 1 and FIG. 5, a curved gate-shaped fixed leg 37 is fixedly connected to the rear end edge of the rear frame 5. The fixed leg 37 has a pair of left and right side pillars 38 at both ends, and a horizontal portion 39 is formed by bridging the upper ends of the side pillars 38, 38. The horizontal portion 39 has a caster 40 at the center. The side pillars 38 have casters 41 at their lower ends. The pair of left and right side pillars 38, 38 of the fixed leg 37 is configured to be inserted between the front support legs 31, 31 and the left and right side edges of the shrine board 27, respectively, in a folded state.

[0021] That is, as shown in FIGS. 4 and 5 and Figure 10, from left and right ends of the rear mats 6, the distance in the width direction to the outer end of the caster 41, 41 and each W _1, casters 41
The width direction of the distance to the inner end and each W ₂ of, prior to the mat 4
When the distance from the left and right ends of the width direction to the lateral side edge of the temple plate 27 and each W _{0, 0} <W ₁ and is set to W ₂ <W _0.

As shown in FIG. 1, near the front of the rear frame 5 (that is, the upper side in the folded state), as shown in FIG. The pair is fixed to the left and right in a protruding manner. The handle 42 has a central portion covered with a covering material 43 such as a sponge. When folding the bed, by lifting this handle 42 upward,
The bed can be easily folded.

As shown in FIG. 1, between the central portion of the central leg 26 and the central portion on the front end side of the front frame 3, and
Between the center of 26 and the center of the rear end of the rear frame 5,
Resilient members 44, such as springs, are provided. This spring assists the force of folding the bed when the bed is folded, so that the bed can be folded with a small force.

As the vertical holding swing restricting member 46, a protruding pin or a protruding piece is separately provided from the inner surface of the column portion 32 so as to abut on the back surface of the front frame 3 in the vertically folded state. (Not shown).

[0025]

Since the present invention is configured as described above, the following effects can be obtained.

(According to claim 1) the bed is in a folded state
The front bed half 1
There is no danger of fingers or the like being caught between the rear bed half 2 and the rear bed half 2.

When the bed is folded (according to claim 2)
Between the center leg 26 and the front bed half 1 and between the center leg 26 and the rear
There is no pinch between the bed half 2
You.

When folding the bed (according to claim 3)
Between the center leg 26 and the front bed half 1 and between the center leg 26 and the rear
There is no pinch between the bed half 2 and the exhibition
It is possible to prevent the bed from tilting left and right in the open state.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a pivot member.

FIG. 3 is a perspective view showing a safety cover.

FIG. 4 is a front view of the entire bed.

FIG. 5 is a rear view.

FIG. 6 is an enlarged view of a main part.

FIG. 7 is an explanatory view showing a bent state of a front mat.

FIG. 8 is an explanatory view showing a bent state of a bed.

FIG. 9 is a side view showing a folded state of the bed.

FIG. 10 is a plan view.

FIG. 11 is an explanatory diagram illustrating a comparative example.

FIG. 12 is an explanatory diagram illustrating a comparative example.

FIG. 13 is an explanatory diagram illustrating a comparative example.

FIG. 14 is an explanatory diagram illustrating a comparative example.

[Explanation of symbols]

 1 Front bed half 2 Rear bed half 4 Front mat 8 Safety cover 26 Center leg 26a End 27 Miyako 31 Front support leg 32 Column 37 Fixed leg 38 Side column 46 Swing restricting member L Distance

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A47C 19/12 A47C 17/70

Claims (3)

(57) [Claims] 1. A folding bed in which a front bed half 1 on which an upper body is placed and a rear bed half 2 on which a lower body is placed are connected so as to be freely folded into an inverted V-shape in side view . The pivot site is an outer wall 17 and the outer wall 17
Center axis 25 is inserted in the lower center part
Inner wall portion 18 having a rectangular notch 24
The cross section of the upper part of the side wall part 17 and the inner wall part 18
Covered with a safety cover 8 consisting of a surface arc-shaped upper wall 19
Folding bed, characterized in that it was. 2. A front bed half 1 on which an upper body is placed, and a lower half.
After placing the body, fold the bed half 2 into an inverted V-shape when viewed from the side.
In the foldable bed which is pivotally connected so as to be freely foldable, the pivotally connected portion is connected to an outer wall portion 17 and the outer wall portion 17.
Center axis 25 is inserted in the lower center part
Inner wall portion 18 having a rectangular notch 24
The cross section of the upper part of the side wall part 17 and the inner wall part 18
Covered with a safety cover 8 consisting of a surface arc-shaped upper wall 19
And both ends 26a, 26a of the center leg 26 are arranged inside the side edges of the bed.
A cot is provided. 3. The left and right ends 26a of the center leg 26 from the side edge of the bed.
Assuming that the distance to L is 30 mm ≦ L ≦ 100 mm
The cot according to claim 2, wherein