JPH0880231A - Rotating bed - Google Patents

Abstract

PURPOSE: To easily adjust a rotation of a bed in a manner such that a bed frame is rotatably supported by supporting legs via shafts and the bed frame is lifted from the horizontal state to the vertical state by using a spring force of a spiral spring the spring force of which can be adjusted. CONSTITUTION: A rotating bed 1 has a bed frame 4, a pair of supporting legs 6 each having a supporting member 5, auxiliary legs 7 attached to the supporting legs 6, and the like. A rotating mechanism 9 is attached between an reinforcement pipe 3 and the supporting member 5 and supports the bed frame 4 rotatably for the supporting leg 6. The rotating mechanism 9 is disposed so that the bed frame 4 is lifted from the horizontal state to the vertical state by energisation of a spiral spring 20. The spring force of the spiral spring 20 can be optionally adjusted in a manner such that a spring force adjusting mechanism 24 is moved along a long hole 26 for guidance by rotating a bolt 27 for adjustment and a retaining section 22 of the spiral spring 20 is pressed by a stopper 25.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an undulating bed which can be raised by rotating the bed from a horizontal state.

[0002]

2. Description of the Related Art Conventionally, in order to effectively use a small room, there is known an undulating type bed which is in a horizontal state when the bed is in use, and is rotated to stand in a vertical state when the bed is not in use. . For example, Jitsuko Sho 54-174
In Japanese Patent Laid-Open No. 44-44, a support shaft provided in the lower part of the bed frame is pivotally supported by a support fitting installed on the floor, and one end of a coil spring wound around the support shaft is locked to the frame,
The other end is locked to a support fitting to form a rotating mechanism.

However, in this type of undulating bed, since the engaging portions at both ends of the coil spring are not in the rotation plane (vertical plane), the spring force of the coil spring is required to support a heavy bed. Needs to be considerably large and its weight increases, and since the spring force of the coil spring acts on the support shaft and the support fitting, the strength of these members needs to be increased and the weight thereof increases. As a result, there is a problem that it requires skill to attach the rotating mechanism, and a large space is required under the bed for attaching the rotating mechanism. Further, when the bed is erected, there is a problem that the rotation mechanism is exposed and protrudes, which spoils the aesthetics of the room.If a cover is attached to shield the rotation mechanism, In addition, the workability and compactness become a problem, and the advantage of the undulating bed for effective use of space is lost.

In order to solve the above problems, the present applicant has
In Japanese Utility Model Publication No. 6-14620, a bed frame provided with a space for housing a spiral spring on the left and right sides, a cabinet for housing the bed frame, and disposed between the left and right side surfaces of the cabinet and the bed frame. A retractable bed having a rotating mechanism, the rotating mechanism comprising:
A shaft support plate fixed to the cabinet, a shaft fixed to the shaft support plate, a spiral spring formed in a spiral shape in the same plane, and a spiral spring support plate fixed to the bed frame. Then, both ends of the spiral spring are locked to the shaft and the spiral spring support plate, respectively, and the spiral spring is housed in the space of the bed frame, and the spring force of the spiral spring acts in the bed rotation plane. Has devised a retractable bed that can be easily undulated against the weight of the bed.

[0005]

However, in the method disclosed in Japanese Utility Model Publication No. 6-14620, the spring force of the spiral spring is not always constant due to a manufacturing error. When it is desired to adjust the up-and-down force of the bed after the storage, the spiral spring must be removed and replaced, which requires a long time to attach the rotating mechanism. In addition, it is necessary to prepare various spiral springs corresponding to the types of beds with different weights.
It has the problem of increasing costs. In addition, this method has a problem that the spiral spring must be locked in a fixed stopper in a squeezed state, and a work for squeezing the spiral spring is required. Therefore, it is conceivable to provide a spring force adjusting mechanism proposed in Japanese Utility Model Publication No. 54-17444, but because of the structure in which the spiral spring is housed in the void of the bed frame, the spring is attached to the spiral spring. Providing a force adjusting mechanism has a problem that it is structurally difficult.

The present invention solves the above-mentioned conventional problems, and simplifies the work of attaching the spiral spring in an undulating bed of the type in which the spring force of the spiral spring is applied within the plane of rotation of the bed. An object of the present invention is to provide a hoisting type bed which enables a spring force adjusting mechanism of a spiral spring to be provided with a simple structure and which can easily adjust the hoisting force of the bed.

[0007]

In order to achieve the above object, the undulating bed of the present invention comprises a bed frame 4, a pair of support legs 6 having a support member 5, a bed frame 4 and a support member 5. In an undulating bed including a rotating mechanism 9 mounted between them, the rotating mechanism 9 includes a shaft support plate 10 fixed to the support member 5, a shaft 11 fixed to the shaft support plate 10, and a cross section. A spiral spring 20 formed by spirally winding flat strip members, a spiral spring support plate 14 fixed to the bed frame 4, and a guide formed on the spiral spring support plate 14. The long hole 16, the spring force adjusting mechanism 24 provided so as to be movable along the guide long hole 16, the stopper 25 provided in the spring force adjusting mechanism 24, the spring force adjusting mechanism 24, and the spiral spring support plate 14. Between And a regulating bolt 27 kicked, characterized in that both end locking portions 21 and 22 of the spiral spring 20 respectively to engage with the shaft 11 and the stopper 25. It should be noted that the numbers added to the above-mentioned configurations are for comparison with the drawings in order to facilitate understanding of the present invention, and the configurations of the present invention are not limited thereby.

[0008]

In the present invention, the bed frame 4 is rotatably supported by the support leg 6 via the shaft 11, and the spiral spring 20 with adjustable spring force moves the bed frame 4 from the horizontal state to the vertical state. In order to apply the optimum spring force so that the spring is lifted up, and since the both end locking portions 21 and 22 of the spiral spring 20 are in the bed rotation surface (vertical surface), the optimum spring force is used as the bed rotation force. Can be operated.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show an undulating bed 1 according to the present invention.
1 shows an embodiment, FIG. 1 (A) is a perspective view showing a state when the bed is not used, FIG. 1 (B) is a perspective view showing a state when the bed is used, and FIG. 2 is a main part perspective view of FIG. .

The undulating bed 1 comprises a rectangular main pipe 2 and a reinforcing pipe 3 connecting the long sides of the main pipe 2.
, A pair of support legs 6 having a support member 5 made of a U-shaped pipe, an auxiliary leg 7 rotatably attached to the support leg 6, and a pair of support members 5.
And a connecting member 8 that connects the bed frame 4 and the supporting member 5 of the supporting leg 6 between the reinforcing pipe 3 of the bed frame 4 and the supporting member 5. It is rotatable. Then, from the state of FIG. 1 (B), the bed frame 4 is rotated to erect the bed 1,
The auxiliary leg 7 can be folded into the state shown in FIG.

3 to 5 show an embodiment of the rotating mechanism 9, FIG. 3 is an exploded perspective view of the rotating mechanism, FIG. 4 is a sectional view of the rotating mechanism, and FIG. 5 is a cover plate removed. It is a front view of the rotating mechanism.

The rotating mechanism 9 includes a shaft support plate 10 fixed to the support member 5, a shaft 11 fixed to the shaft support plate 10, a locking groove 12 formed at the tip of the shaft 11, and a spacer 13. A spiral spring supporting plate 14 fixed to the reinforcing pipe 3 of the bed frame 4 by welding, and an insertion hole 15 formed in the central portion of the spiral spring supporting plate 14,
A mounting hole 16 formed in the lower part of the spiral spring support plate 14,
A nut 31 welded and fixed to face the mounting hole 16, and a female screw member 17 welded to the back surface of the spiral spring support plate 14.
, A spacer 19, and a spiral spring 20 formed by spirally winding a strip-shaped member having a flat cross section so that the strip-shaped members overlap each other.
And locking portions 21 and 22 formed by bending the central portion and the outer peripheral portion of the spiral spring 20, a fixing C ring 23, a spring force adjusting mechanism 24, and a stopper formed in the spring force adjusting mechanism 24. 25 and the elongated guide hole 26, the adjusting bolt 27 screwed into the female screw member 17, the fixing bolt 29 inserted into the elongated guide hole 26, and the cover plate fixed to the spiral spring support plate 14. And 32.

The method of assembling the rotating mechanism 9 will be described. First, the fixing bolt 29 is screwed into the nut 31 through the elongated guide hole 26 of the spring force adjusting mechanism 24 and the mounting hole 16 of the spiral spring support plate 14. Then, the spring force adjusting mechanism 24 is attached to the spiral spring support plate 14 so that the spring force adjusting mechanism 24 can move along the guide long hole 26. Further, the adjusting bolt 27 is screwed into the female screw member 17 so that the adjusting bolt 27 can come into contact with the spring force adjusting mechanism 24. Next, the spacer 13 is inserted into the shaft 11 of the shaft support plate 10, the shaft 11 is passed through the insertion hole 15 of the spiral spring support plate 14,
After inserting the spacer 19, the locking groove 12 of the shaft 11
The engaging portion 21 at the center of the spiral spring 20 is engaged with. Next, the fixing C ring 23 prevents the spiral spring 20 from coming off, and the locking portion 22 on the outer peripheral portion of the spiral spring 20 is locked to the stopper 25 of the spring force adjusting mechanism 24. When the adjusting bolt 27 is rotated with a spanner in this state, the spring force adjusting mechanism 2
4 moves leftward in FIG. 5 along the guide long hole 26,
Since the stopper 25 presses the locking portion 22 of the spiral spring 20, the spring force of the spiral spring 20 can be adjusted arbitrarily.

FIG. 6 is a sectional view showing another embodiment of the rotating mechanism 9 in the present invention. The same components as those in the embodiment of FIG. 4 are designated by the same reference numerals and the description thereof will be omitted. In this embodiment, two spiral springs 20 are provided via the spacer 33 so that the spiral spring 20 can be downsized.

FIG. 7 shows another embodiment of the undulating bed of the present invention, FIG. 7 (A) is a perspective view showing the state when the bed is not used, and FIG. 7 (B) shows the state when the bed is used. It is a perspective view shown. The same components as those in the embodiment of FIG. 1 are designated by the same reference numerals and the description thereof will be omitted. This embodiment shows an example applied to a method of undulating the bed in the vertical direction. The present invention is not limited to the beds shown in FIGS. 1 and 7 and can be applied to various existing beds.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments and various modifications can be made. For example, the method of fixing the spiral spring and other components is not limited to the above embodiment, and various methods known to those skilled in the art can be adopted.

[0017]

As is apparent from the above description, according to the present invention, since the stopper for fixing the spiral spring is movable, it is not necessary to work in a state where the spiral spring is squeezed as in the conventional case, and the spiral spring is not required. Installation work of spring becomes easy. Further, it is possible to provide the spring force adjusting mechanism of the spiral spring with a simple structure, the undulating force of the bed can be easily adjusted, and moreover, the both end locking portions 21 and 22 of the spiral spring have the bed rotation surface ( Since it is in the vertical plane), the optimum spring force can be applied to the rotational force of the bed.

[Brief description of drawings]

1 shows an embodiment of an undulating bed of the present invention, and FIG.
FIG. 1A is a perspective view showing a state when the bed is not used, FIG.
(B) is a perspective view showing a state when the bed is used.

FIG. 2 is a perspective view showing a main part of FIG.

FIG. 3 is an exploded perspective view of the rotation mechanism of FIG.

4 is a cross-sectional view of the rotating mechanism of FIG.

5 is a front view of the rotating mechanism with the cover plate of FIG. 4 removed.

FIG. 6 is a cross-sectional view showing another embodiment of the rotating mechanism in the present invention.

FIG. 7 shows another embodiment of the undulating bed of the present invention, and FIG. 7 (A) is a perspective view showing a state when the bed is not used,
(B) is a perspective view showing a state when the bed is used.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Undulating bed, 4 ... Bed frame, 5 ... Support member, 6 ... Support leg 9 ... Rotation mechanism, 10 ... Shaft support plate, 11 ... Shaft, 12 ... Locking groove 13 ... Spacer, 14 ... Spiral spring support Plate, 15 ... insertion hole, 16 ... mounting hole 17 ... female screw member, 19 ... spacer, 20 ... spiral spring,
21, 22 ... Locking portion 23 ... Fixing C ring, 24 ... Spring force adjusting mechanism, 25 ...
Stopper 26 ... Guide long hole, 27 ... Adjustment bolt, 29 ... Fixing bolt 31 ... Nut, 32 ... Cover plate

Claims (1)

[Claims] 1. An undulating bed having a bed frame, a pair of support legs having a supporting member, and a rotating mechanism mounted between the bed frame and the supporting member, wherein the rotating mechanism comprises: A shaft support plate fixed to a support member, a shaft fixed to the shaft support plate, a spiral spring formed by spirally winding a band-shaped member having a flat cross section such that the band-shaped members overlap each other, and the bed. A spiral spring support plate fixed to a frame, a guide long hole formed in the spiral spring support plate, a spring force adjusting mechanism movably provided along the guide long hole, and a spring force adjusting mechanism. It is provided with a stopper provided and an adjusting bolt provided between the spring force adjusting mechanism and the spiral spring support plate, and both end locking portions of the spiral spring are locked to the shaft and the stopper, respectively. Undulating bed to be.