JP3535032B2 - Folding bed support leg mounting structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support leg mounting structure for a folding bed.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 9, a pair of bed halves 20, 20 which are pivotally connected to each other at a central portion of the bed and which can be folded into an inverted V-shape are provided. Outer edge of
The support leg mounting structure of the folding bed in which the support legs 22 and 22 are arranged closer to 21 is known to be pivotally connected by a single shaft 25 to a position slightly closer to the center part from the outer end 24 of the folding bed 23. is there.

[0003]

However, in the conventional support leg mounting structure, when the person P sits at a position closer to the outer end 21 side than the support leg 22, as shown in FIG.
Was folded, and the seated person P might fall.

Therefore, as shown in FIGS. 9 and 10, a hole (for a safety pin) is formed in the upper end of the support leg 22 and a part of the bed frame. There was also a structure to prevent the bed from being accidentally folded by inserting it into the hole (for the pin). However, when the bed was unfolded, the safety pin 28 had to be inserted into the hole, and when the bed was folded, the safety pin 28 had to be removed, which was extremely troublesome to operate.

Therefore, according to the present invention, even if a person sits on the outer end side of the support leg and a downward load is applied, it is immovable and the bed is in a folded state without any special operation. It is an object of the present invention to provide a support leg mounting structure that is swingable and can fold the bed when the bed is raised by lifting the center side of the support leg to fold the bed. To do. That is, it is an object of the present invention to provide a highly safe support leg mounting structure in the sense that it is automatically locked and unlocked.

[0006]

In order to achieve the above-mentioned object, a support leg mounting structure for a folding bed according to the present invention comprises:
A support leg for a folding bed, which comprises a pair of bed halves that are pivotally connected to each other at the center of the bed and can be folded into an inverted V-shape, and the support legs are arranged near the outer ends of one of the bed halves. In the mounting structure, when the outer end side of the one bed half is pushed down, the swing of the one bed half is restricted, and the inner end side of the one bed half is fixed. It is provided with a swinging restricting pivotally supporting mechanism for releasing the restriction when lifted.

Further, there is provided a pair of bed halves which are pivotally connected to each other in the central portion of the bed and can be folded into an inverted V-shape, and support legs are arranged near the outer ends of one of the bed halves. In the support leg mounting structure of the folding bed, when the outer end portion side of the one bed half is pushed down, the swing of the one bed half is restricted, and the one bed half of the one bed half is restricted. When the inner end side is lifted, a swing control pivot support mechanism is provided so that the above control is released, and the swing control pivot support mechanism is hung from the support leg and the frame of the bed half. And the first plate mounted on the fixed base plate at a fixed position.
The shaft, the second shaft, the third shaft provided on the substrate, and the second shaft.
And a restricting member that restricts the movement of the base plate part by mutually connecting the shaft and the third shaft, wherein the base plate part has a hole into which the first shaft is loosely fitted, and has a circular arc elongated hole shape. It has a cam groove, an inner edge on one end side of the cam groove forms a hook portion, and the first shaft is loosely fitted in the cam groove.

Further, a pair of bed halves that are pivotally connected to each other at the center of the bed and can be folded into an inverted V-shape are provided, and support legs are arranged near the outer ends of one of the bed halves. In the support leg mounting structure of the folding bed, when the outer end portion side of the one bed half is pushed down, the swing of the one bed half is restricted, and the one bed half of the one bed half is restricted. When the inner end side is lifted, a swing control pivot support mechanism is provided so that the above control is released, and the swing control pivot support mechanism is hung from the support leg and the frame of the bed half. And the first plate mounted on the fixed base plate at a fixed position.
A shaft and a second shaft, and the base plate portion has a vertically elongated hole into which the first shaft is loosely fitted, and a cam groove having an arc elongated hole, and the inner edge of one end side of the cam groove Forms a hooking part and has a parallel part parallel to the hole, and the first shaft is loosely fitted in the cam groove.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below in detail with reference to the drawings showing the embodiments.

1 and 2 show a first embodiment of the present invention. The support leg mounting structure of this folding bed is pivotally connected to each other at the central portion of the bed 15 and is folded into an inverted V-shape. The folding bed 15 is provided with a pair of possible bed halves 4 and 4, and the supporting legs 6 and 6 are arranged on the left and right end edges of the one bed half 4 near the outer end 5. In addition, in FIG.
The outer end portion 5 is shown by hatching.

In the support leg mounting structure of the folding bed 15, the side of the outer end portion 5 of one half bed 4 is indicated by an arrow A.
When it is pushed down in the direction, swinging of the bed half 4 is restricted,
A rocking regulation pivotal support mechanism M is provided so that the regulation is released when the inner end 7 side of the one bed half 4 is lifted in the direction of arrow B.

That is, on the outer end 5 side of the bed half 4,
Even if the person P sits, there is no risk that the folding bed 15 will be in an abruptly folded state and the person P sitting will fall. However, if the inner end 7 side of the bed half 4 is (consciously) lifted, the bed half 4 can be swung to fold the folding bed 15.

As shown in FIGS. 3 to 6, the rocking regulation pivotal support mechanism M includes a support leg 6 mounted so as to be rockable near the outer end of the bed half 4 and the bed half 4 (FIG. 1). (See FIG. 2) and a base plate portion 9 hung from a frame 8; a first shaft 1 and a second shaft 2 attached to a predetermined position where the support legs 6 are fixed;
The third shaft 3 provided on the substrate portion 9, the second shaft 2 and the third shaft 3
The shaft 3 is pivotally connected to each other to restrict the movement of the base plate portion 9, and the like.

The base plate 9 has a hole 11 of a substantially square shape (or an inverted camber shape) into which the first shaft 1 is loosely fitted, and
It has an arc-shaped elongated hole-shaped cam groove 12 having an arc portion 17. A hook portion 13 is formed on the inner edge of the cam groove 12 on the side of the one end 12a. The first shaft 1 is loosely fitted in the cam groove 12. S is the cam groove 12
It is the center point of the arc portion 17 of.

That is, when the outer end 5 side of the bed half 4 is pushed down, the second shaft 2 comes into contact with the upper edge of the hole 11 and the first shaft is hooked on the hooking portion 13 to The swinging of the half body 4 is restricted.

However, when the inner half portion 7 side of the bed half 4 is lifted, the first shaft is disengaged from the hook portion 13, so that the above-mentioned regulation is released, and Bed half 4 (same as above)
Can be swung around the center point S, and the folding bed 15 (see FIGS. 1 and 2) can be folded.

FIG. 7 and FIG. 8 show a second embodiment. That is, the rocking | fluctuation control pivotal support mechanism M is a part of the support leg 6 attached to the outer end part 5 (refer FIG.1 and FIG.2) of the bed half body 4 so that rocking | fluctuation is possible, and is hung from the frame 8. And a first shaft 1 and a second shaft 2 which are attached to the support leg 6 at fixed positions.

The board portion 9 has a vertically elongated hole 11 into which the second shaft 2 is loosely fitted, and an arc elongated hole-shaped cam groove 12, and the inner edge of the cam groove 12 on the side of the one end 12a is formed. The first shaft 1 has a parallel portion 14 which is parallel to the hole 11 and which forms the hook portion 13, and the first shaft 1 is loosely fitted in the cam groove 12.

As the first shaft 1, the second shaft 2 and the third shaft 3, pins such as those shown in FIGS. 5 and 6 may be fixed by welding, or bolts may be attached via nuts or washers. Mounted. Further, the present invention can be modified in design, and the frame 8 and the substrate portion 9 may be separate members, and they may be integrally connected to each other by welding, rivets, bolts or the like.

[0020]

Since the present invention is configured as described above, it has the following effects.

A person P sits on the side of the outer end 5 of the bed half 4 (according to claims 1, 2 and 3) and faces downward (arrow A in the drawing).
It is immovable even if a load is applied to (see), and it is possible to eliminate the risk of the person P tipping over, and by lifting by hand while being conscious of the inner end portion 7 side with respect to the support leg 6, The folding bed 15 can be folded. In this way, locking and unlocking are automatically selected and performed, which is highly safe and convenient. (The troublesome operation of removing and inserting the safety pin as in the past is not necessary.)

When a person sits on the outer end 5 side of the bed half 4 without performing any special operation (according to claim 2),
The folding bed 15 can be folded by immobilizing the bed half 4 and raising the inner end 7 side of the support legs 6. Further, since the shape of the hole 11 does not require so much accuracy, it can be easily manufactured.

Since the number of parts is small (according to claim 3), the manufacturing cost can be reduced, and the material cost and the labor required for assembly can be reduced.

[Brief description of drawings]

FIG. 1 is a front view showing a usage state of the present invention.

FIG. 2 is a plan view showing an outer end portion.

FIG. 3 is a rear view showing the first embodiment.

FIG. 4 is a rear view.

5 is a sectional view taken along line CC of FIG.

6 is a sectional view taken along line EE of FIG.

FIG. 7 is a rear view showing the second embodiment.

FIG. 8 is a rear view.

FIG. 9 is a front view showing a conventional example.

FIG. 10 is a front view.

[Explanation of symbols]

1st axis 2 Second axis 3rd axis 4 bed body 5 outer edge 6 support legs 7 Inner edge 8 frames 9 Board part 10 Regulatory material 11 holes 12 Cam groove 12a One end 13 Hook 14 Parallel part 15 (folding) bed M rocking control pivot mechanism

Claims (3)

(57) [Claims] 1. A pair of bed halves 4 and 4 which are pivotally connected to each other at a central portion of the bed and can be folded into an inverted V shape.
In the support leg mounting structure of the folding bed 15 in which the support legs 6 and 6 are arranged near the outer end 5 of one bed half 4, the outer end 5 side of the one bed half 4 is attached. When pushed down,
The rocking regulation pivotal support mechanism M is provided so that the rocking of the one bed half 4 is restricted and the above restriction is released when the inner half 7 side of the one bed half 4 is lifted. Folding bed support leg mounting structure characterized by that. 2. A pair of bed halves 4, 4 which are pivotally connected to each other at a central portion of the bed and are foldable in an inverted V shape.
In the support leg mounting structure of the folding bed 15 in which the support legs 6 and 6 are arranged near the outer end 5 of one bed half 4, the outer end 5 side of the one bed half 4 is attached. When pushed down,
The rocking regulation pivotal support mechanism M is provided so that the rocking of the one bed half 4 is restricted and the above restriction is released when the inner half 7 side of the one bed half 4 is lifted. The rocking regulation pivot mechanism M includes the support leg 6 and the bed half 4
Board portion 9 hung from the frame 8 and the first shaft 1 and the second shaft 2 attached to the predetermined positions of the supporting legs 6 fixed.
And a third shaft 3 provided on the substrate portion 9 and the second shaft 2 described above.
And a restricting member 10 for restricting the movement of the base plate portion 9 by mutually connecting the third shaft 3 with each other.
Has a hole 11 into which is loosely fitted, and also has an arc-shaped elongated hole-shaped cam groove 12, and an inner edge of the cam groove 12 on the side of one end 12a is a hook portion 13.
And the first shaft 1 is loosely fitted into the cam groove 12 to support the leg mounting structure of the folding bed. 3. A pair of bed halves 4, 4 which are pivotally connected to each other in the center of the bed and are foldable in an inverted V shape.
In the support leg mounting structure of the folding bed 15 in which the support legs 6 and 6 are arranged near the outer end 5 of one bed half 4, the outer end 5 side of the one bed half 4 is attached. When pushed down,
The rocking regulation pivotal support mechanism M is provided so that the rocking of the one bed half 4 is restricted and the above restriction is released when the inner half 7 side of the one bed half 4 is lifted. The swinging restricting and pivoting mechanism M is attached to the supporting leg 6, a base plate portion 9 suspended from the frame 8 of the bed half 4, and a first position attached to the supporting leg 6 at a fixed position. Axis 1, second
The shaft portion 2 and the base plate portion 9 have a vertically elongated hole 11 into which the first shaft 1 is loosely fitted and an arc elongated hole-shaped cam groove 12, and one end of the cam groove 12 is formed. The inner edge of the 12a side is the hook
13 has a parallel portion 14 that is parallel to the hole 11 and is configured such that the first shaft 1 is loosely fitted in the cam groove 12 to mount a supporting leg of a folding bed. Construction.