JP2553154Y2 - Bed with floor elevation mechanism - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bed provided with a mechanism for raising and lowering a floor. More specifically, when a back floor is raised, a leg floor is lowered. The present invention relates to a bed provided with such a floor elevating mechanism.

[0002]

2. Description of the Related Art As a mechanism for raising and lowering a floor in a bed,
In addition to the one in which only the back floor rotates independently to be in a raised state, the one in which the waist floor and the leg floor rotate in conjunction with the rotation of the back floor may be used. In the structure in which the back floor, the waist floor, and the leg floor are linked, the waist floor and the leg floor move toward the head as the back floor rotates, and the waist floor is moved. The front side is lowered and the rear side is raised, and the leg floor is supported by a link mechanism etc. between the connection part with the waist floor and the floor support frame, and together with the back raising operation by tilting the back floor part It moved upward in parallel with the floor support frame.

[0003] However, as described above, in the structure in which the leg floor rises as the back floor is raised,
When raising the back, the legs are raised, resulting in a cramped posture. Therefore, it is desirable that the leg floor be lowered when raising the back. However, in order to simultaneously perform the back raising operation of the back floor and the leg lowering operation of the leg floor, a driving unit for tilting the back floor and a driving unit for tilting the leg floor are required. Must be provided, and the structure of the floor lifting mechanism becomes complicated.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention is to provide a bed provided with a floor elevating mechanism capable of simultaneously raising and lowering a leg with a simple elevating mechanism.

[0005]

According to the present invention, there is provided a bed provided with a floor elevating mechanism, in order to achieve the above-mentioned object.
4, Koshiyuka unit 5, and the leg floor portion connecting 6 rotatably together, the rear part of the Seyuka portion 4 rotatably fixed to the floor part support frame 1, the Koshiyuka 5 With respect to the floor support frame 1 on a trochanter 11 having an intermediate position in the front-rear direction fixed to the floor support frame 1
A push-up arm 13a, which is rotatably and slidably supported and is fixed to the lower side of the back floor 5 , and a rotary arm 14 rotatably fixed to the lower side of the leg floor 6 , are connected by a connecting rod 15 . Connected, the connecting rod 1
5 of the longitudinal direction of the intermediate position and fixed to the floor part support frame 1 trochanter
16 on the floor support frame 1 so as to be slidable in the front-rear direction and
A push-up arm 13b fixed to the lower side of the back floor portion 4 is rotatably supported and rotatably connected to the driving means 17 .

[0006]

The bed according to the present invention is constructed as described above, and when the driving means is driven from a state in which the entire floor is horizontal, the push-up arm connected to the driving means is rotated and the bed is supported by the floor supporting frame. The backfloor is tilted upward about the fixed point of, and as the backfloor tilts, the rotating arm connected to the push-up arm fixed to the lower surface of the backfloor via the connecting rod moves forward. Then, the leg floor connected to the rotating arm tilts downward around the connection with the waist floor, whereby the raising of the back floor and the lowering of the leg floor are performed in conjunction with each other. .

[0007]

1 is a perspective view showing an embodiment of a bed A according to the present invention. FIG. 2 is a bottom view of the bed A, in which reference numeral 1 denotes a floor support frame, and 2 denotes the floor support. A headboard 3 fixed to the front end of the frame 1 is a footboard similarly fixed to a rear end of the floor support frame 1, and the back support frame 1 is rotatably connected to the floor support frame 1. Floor 4, waist floor 5,
And a floor 7 composed of a leg floor 6 is attached,
A mattress (not shown) is placed on the floor 7 for use.

As shown in FIG. 4, the back floor 4 is supported on a support member 8 fixed to the floor support frame 1 as shown in FIG. Is fixed rotatably. A waist floor 5 is rotatably connected to a rear end of the back floor 4 by a connecting member 10. The waist floor 5 has a left and right floor support frame 1 at an intermediate position in the front-rear direction. move times on the rotor 11, 11 which is fixed to 1
One slidably are supported. Further, a leg floor portion 6 is rotatably connected to a rear end of the waist floor portion 5 by a connecting member 12. A push-up arm 13a fixed to the lower side of the back floor 4 and a turning arm 14 rotatably fixed to the lower side of the leg floor 6 are connected by a connecting rod 15, and the connecting rod 1
5 is slidably and rotatably supported in the front-rear direction on a trochanter 16 fixed to the floor support frame 1. Further, as shown in FIG. 5, another push-up arm 13b fixed to the lower side of the back floor portion 4 has a floor support frame 1 attached thereto.
Operating shaft 1 of driving means 17 rotatably fixed with respect to
8 are connected rotatably.

In the bed A according to the present invention as described above, in a normal state, as shown in FIG. The lumbar floor portion 5 that is supported and rotatably connected to the back floor portion 4 has a trochanter attached to the connecting member 10 for connecting the back floor portion 4 to the back floor portion 4 and the floor support frame 1. The leg floor 6 connected to the lumbar floor 5 is supported at the position of the connecting member 12 with the lumbar floor 5, and the rear is trochanter. The floor 7, which is supported by the connecting rod 15 and the rotating arm 14 supported on the top 16, and includes the back floor 4, the waist floor 5, and the leg floor 6, is in a horizontal state.

The driving means 17 is driven so that the operating shaft 18 projects forward from the state in which the back floor 4, the waist floor 5, and the leg floor 6 constituting the floor 7 are all horizontal. When,
As shown in FIG. 6, the push-up arm 13b rotatably connected to the tip of the operating shaft 18 rotates, and the back floor 4 is rotatably fixed to the floor support frame 1 by the rotating shaft 9. , And the rear end of the back floor 4 rotates downward about the rotation shaft 9. Accordingly, the back floor 4 and the connecting member 10
In the lumbar floor portion 5 connected by the, the front portion pivots slightly downward while the rear portion is supported on the trochanter 11, and the rear portion pivots upward. Then, the leg floor portion 6 connected to the waist floor portion 5 by the connecting member rotates upward at the front portion, but at this time, supports the intermediate position of the leg floor portion 6 as shown in FIG. The rotating arm 14 moves forward by the connecting rod 15 moving forward by the rotation of the push-up arm 13b accompanying the rotation of the backfloor portion 4, thereby the other end of the rotating arm 14 Is pivoted downward, whereby the leg floor 6 pivots downward about the position of the connecting member 12 with the waist floor 5. That is, as the back floor portion 4 is raised, the leg floor portion 6 is in a leg-down state.

As described above, in the bed provided with the floor elevating mechanism according to the present invention, the backfloor 4 is rotated from the horizontal state to the back-up state, so that it is connected to the backfloor 4 via the connecting rod 15. The connected leg floor 6 is in a leg-down state, and the back can be raised in a comfortable posture. Further, in this floor lifting mechanism, the back floor 4 and the leg floor 6 are connected by a connecting rod 15.
Can be simultaneously driven by one driving means 17, and there is no need to provide separate driving means for each of the back floor portion 4 and the leg floor portion 6 as in the related art. The structure of the mechanism is simple.

[0012]

As described above, according to the bed having the floor elevating mechanism according to the present invention, the back raising operation of the back floor and the lowering operation of the leg floor are performed in conjunction with each other. It is possible to raise the back in a comfortable posture, and the back floor and the leg floor are linked by a connecting rod, and the back floor and the leg floor are raised and lowered by one driving means. And the structure of the lifting mechanism is simple.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a bed according to the present invention.

FIG. 2 is a bottom view of the bed.

FIG. 3 is a perspective view showing a main part of the floor lifting mechanism.

FIG. 4 shows a bed A in FIG.
-A sectional drawing.

FIG. 5 is a view B of FIG. 2 showing the bed with the floor in a horizontal state;
-B sectional drawing.

FIG. 6 is a cross-sectional view taken along the line BB of FIG. 2 of the bed with the floor portion in a raised state.

FIG. 7 is a cross-sectional view taken along the line AA of FIG.

[Explanation of symbols]

 A bed 1 floor support frame 2 headboard 3 footboard 4 back floor 5 waist floor 6 leg floor 7 floor 8 support member 9 rotation axis 10 connection member 11 trochanter 12 connection member 13 push-up arm 14 rotating arm 15 Connecting rod 16 Rotor 17 Driving means 18 Operating shaft

Claims (1)

(57) [Scope of request for utility model registration] 1. A back floor portion 4 , a waist floor portion 5 , and a leg floor portion 6 are rotatably connected to each other, and a rear portion of the back floor portion 4 is rotatably fixed to a floor support frame 1 . Then, an intermediate position in the front-rear direction of the waist floor 5 is placed on the trochanter 11 fixed to the floor support frame 1.
The push-up arm 13a, which is rotatably and slidably supported on the floor support frame 1 and is fixed below the back floor 5 , and the leg floor 6
Connecting rod 15 and a rotary arm 14 which is pivotally secured to the underside of the
And an intermediate position in the front-rear direction of the connecting rod 15 is slidably and rotatably supported in the front-rear direction on the floor support frame 1 on a trochanter 16 fixed to the floor support frame 1 . A bed provided with a floor elevating mechanism, wherein a push-up arm 13b fixed to the lower side of the back floor 4 is rotatably connected to the driving means 17 .