JP2001293038A - Bed equipped with height-adjusting mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bed equipped with a height-adjusting mechanism, which does not require a large space when moved, and of which the vertical motion is facile. SOLUTION: A link A mechanism A is provided on the inside of a lower frame 1 of this bed. The link A mechanism A comprises a rail 2, a link A6, a rotating shaft 8, a stay 9, and an arm 11. In this case, the rail 2 has a roller 4 which is arranged in a manner to be slidable on the rail surface. One end of the link A6 is turnably connected to the roller 4, and the other end is turnably connected to one end of an upper frame 5. The rotating shaft 8 is rotatably bridged between a lower frame 1 and a confronted lower frame 1. One end of the stay 9 is fixed to the rotating shaft 8, and the other end is turnably connected to the link A6. One end of the arm 11 is fixed to the rotating shaft 8, and the other end is turnably connected to an actuator 10. A link B mechanism B comprises the same rail 2 as the link A mechanism, and a link B12. In this case, the rail 2 of the link B mechanism B is provided to be away from the rail location of the link A mechanism. One end of the link B12 is turnably connected to the roller 4, and the other end is turnably connected to the other end of the upper frame 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bed having a height adjustment mechanism which is most suitable for a nursing care bed. For this reason, the present invention relates to a bed provided with a height adjustment mechanism that does not require a large space for fluctuation and that can easily move up and down even in a small room.

[0002]

2. Description of the Related Art In recent years, the society has been aging.
Along with this, the number of people who need constant care or those who need care at any time tends to increase. Particularly, recently, with the enforcement of the care system, the number of people who take care at home has increased.

[0003] When receiving care at home, the bed is desired to be as compact as possible because the room is small. Particularly when adjusting the height of the bed, a bed that does not require as much space as possible is desired.

Conventionally, as a bed provided with a bed height adjusting mechanism, height adjustment by arc motion is mainly used, and in this case, a length of about 7 cm is required in addition to the length of the bed. Not only is it necessary, but it requires even more area.

[0005]

It is therefore an object of the present invention to allow the bed frame to move vertically, i.e., linearly, rather than in an arcuate motion, so that it does not require a large amount of space during the movement and is narrow. Up and down movement is easy in the room,
It is an object of the present invention to provide a bed provided with a height adjusting mechanism which improves on the above-mentioned disadvantages of the prior art.

[0006]

In order to achieve the above-mentioned object, according to the present invention, a link B mechanism is provided, and a link A mechanism is provided.
A mechanism is provided inside the lower frame of the bed, and a rail having rollers slidably disposed on the rail surface,
One end is rotatably connected to the roller, and the other end is rotatably bridged between a link A rotatably connected to one end of the upper frame and the lower frame and the opposing lower frame. A rotating shaft, a stay having one end fixed to the rotating shaft and the other end rotatably connected to the link A, and an arm having one end fixed to the rotating shaft and the other end rotatably connected to the actuator. The link B mechanism is inside the lower frame of the bed, and the same rail as the link A mechanism provided apart from the rail position of the link A mechanism, and one end is rotatably connected to the roller, The other end is tangled with a link B rotatably connected to the other end of the upper frame,
The link A and the link B are connected to each other by a connecting rod.

[0007]

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

FIG. 1 is a side view of the bed according to the present invention with the frame height lowered, and FIG. 2 is a side view of the bed with the frame height raised according to the present invention. FIG. 4 is a partial perspective view illustrating a connecting means between a roller of a rail and a link A.

A bed X according to the present invention includes a link A mechanism A and a link B mechanism B as shown in FIGS.

The link A mechanism A is provided inside the lower frame 1 of the bed X, and as shown in FIG.
Rail 2 having rollers 4 slidably disposed thereon
A link A6 having one end rotatably connected to the roller 4 by a pin 7 and the other end rotatably connected to one end of the upper frame 5, for example, a front end by pinning or the like; A rotating shaft 8 rotatably mounted between the lower frame 1 and an opposing lower frame (not shown), and a rotating shaft 8 having one end fixed to the rotating shaft 8 and the other end rotatably connected to a link A6. And one end is fixed to the rotation shaft 8 and the other end is rotatably connected to the tip of the actuator 10 by pinning or the like, and is pressed by the actuator 10 in the direction of the arrow shown in FIG. And an arm 11 that rotates together with the rotating shaft 8.

The link B mechanism B is located inside the lower frame 1 of the bed X and has a rail 2 similar to the link A mechanism provided apart from the rail position of the link A mechanism. Similarly, a link B12 is rotatably connected to the roller 4 by a pin 7 and the other end is rotatably connected to the other end of the upper frame 5 by pinning or the like. The link A6 and the link B12 are They are connected to each other by connecting rods 13.

As shown in FIG. 1, when the tip of the arm 11 is pressed in the direction of the arrow by the operation of an actuator 10 (not shown), the arm 11 rotates about the rotation shaft 8 as shown in FIG. To start. At this time,
Since the end of the arm 11 is fixed to the rotating shaft 8, the rotating shaft 8 also starts to rotate, and the stay 9 rotates with this rotation.

When the stay 9 rotates, the link A6 rises together with the stay 9 while rotating the roller 4 on the rail 2 at the end as shown in FIG. At this time, since the link A6 is connected to the link B12 via the connecting rod 13, the link B12 also rises while rotating the roll 4 on the rail 2 at the end, similarly to the link A6, and moves the upper frame 5 in the vertical direction. To lift.

[0014]

As described above, according to the present invention, the bed frame can be moved vertically, that is, linearly, instead of in an arc movement, so that a large space is not required for the movement and the bed frame can be moved up and down even in a small room. Exercise is easy, and it is particularly suitable as a nursing bed used at home.

[Brief description of the drawings]

FIG. 1 is a side view of a bed according to the present invention in a state where a frame height is lowered.

FIG. 2 is a side view of the bed according to the present invention in a state where the frame height is increased.

FIG. 3 is a partial perspective view illustrating a connecting means between a roller of a rail and a link A;

[Explanation of symbols]

 A Link A mechanism B Link B mechanism X Bed 1 Lower frame 2 Rail 3 Rail surface 4 Roller 5 Upper frame 6 Link A 7 Pin 8 Rotating shaft 9 Stay 10 Actuator 11 Arm 12 Link B 13 Connecting rod

Claims (1)

[Claims] 1. A link A mechanism and a link B mechanism, wherein the link A mechanism is provided inside a lower frame of a bed and has a rail having a roller slidably disposed on a rail surface, and one end of the rail. A link A rotatably connected to the roller and the other end rotatably connected to one end of the upper frame, and a rotating shaft rotatably mounted between the lower frame and the opposing lower frame. A stay having one end fixed to the rotating shaft and the other end rotatably connected to the link A;
One end is fixed to the rotating shaft, and the other end is an arm rotatably connected to the actuator. The link B mechanism is provided inside the lower frame of the bed and away from the rail position of the link A mechanism. And a link B having one end rotatably connected to the roller and the other end rotatably connected to the other end of the upper frame. B is a bed provided with a height adjusting mechanism connected to each other by a connecting rod.