JP3134993B2 - Bed with curved bottom in bed and bottom undulating mechanism with curved bottom - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention is directed to a bed or the like having an up-and-down mechanism, in which a curved bottom part of which can be bent at an appropriate curvature is replaced with a bottom so as to be positionally dependent on a user's physique. The present invention relates to a bed provided with a curved bottom in a bed and a bottom up-and-down mechanism having the curved bottom, in which a curved center position of the curved bottom is made to follow a bending part of a different body.

[0002]

2. Description of the Related Art In recent years, a bed provided with a bottom raising / lowering mechanism is not shown, but the bottom divided into a back bottom, a waist bottom, a knee bottom and a leg bottom can be raised and raised by the bottom raising / lowering mechanism. In some cases, the tilt angle is adjusted to a desired tilt angle. In such a bed, when the bottom is tilted, the bent position of the back bottom and the bent positions of the knee bottom and the leg bottom may be suitable for the vicinity of the hip bone of the user's body and the position of the knee joint. Desirably, if the bending position is in the vicinity of the hipbone of the user's body and the position of the back of the knee, the user's body does not generate compression or displacement, so that the patient's body can be supported without difficulty. Because.

[0003]

However, in practice, it is rare that the joint of the user's body and the bent portion of the bottom match. Thus, the present applicant has proposed various beds having a structure in which the bending position from the knee bottom to the leg bottom can be adjusted according to the user. For example, between the knee bottom and the leg bottom, a bottom configured to be able to switch and bend at different locations is arranged, or a so-called curved bottom having a structure in which the whole bends upward at a predetermined curvature is arranged. Propose a bed that has been made. The present invention has been proposed to further improve such a bed, in which a bottom such as a bed provided with an undulating mechanism is replaced with a curved bottom partially configured to be able to bend at an appropriate curvature. An object of the present invention is to provide a bottom bending position adjusting mechanism in a bed or the like, in which a bending center position of the curved bottom follows a bending portion of the body which is different in position depending on a user's physique.

[0004]

According to the present invention, there is provided a bed provided with a bottom undulating mechanism.
A curved bottom arranged to correspond to the human body bending position, part of the predetermined range from one end side of the bottom longitudinal
Is a curved portion that is directed to the bottom surface side or the back surface side and is curved at a predetermined curvature, while the other end in the bottom length direction is
The remaining part is a fixed part that does not curve, and the bottom length
Detachable to adjacent bottom at one end and the other end in the direction
Engagement means for connecting provided, so as to approach the curved portion in the bent position of the user depending on the user, the bottom length
Through engagement means at one end and the other end in the vertical direction,
It is arranged to be connected to the adjacent bottom. Further, the present invention provides a bed provided with a bottom undulation mechanism, wherein a knee bottom for supporting the thigh and a leg bottom for supporting the shin, a portion within a predetermined range from one end side in the bottom length direction , a bottom surface side or a back surface. Bending part that bends at a predetermined curvature in a direction to the side
On the other hand, the remaining part reaching the other end in the bottom length direction is
The engagement means is provided by a curved bottom having a fixed portion that does not bend.
The bay is detachably connected via a buckle so as to bring the curved portion of the curved bottom closer to the bending position of the user according to the user.
Connect the curved bottom to the knee bottom and the leg bottom via the engaging means.
I tied it.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a bed provided with a curved bottom and a floor undulating mechanism having a curved bottom according to the present invention will be described below with reference to the accompanying drawings. . FIG. 1 shows a portion of the bottom 2 of the bed 1 provided with the floor undulation mechanism, from the knee bottom 2a supporting the thigh to the leg bottom 2b supporting the shin on the main frame 3. The knee bottom 2a is formed by attaching one press-formed steel bottom unit 4 to a support frame 5, and includes a leg bottom 2b.
Has a structure in which the steel bottom unit 4 is connected by two support frames 6, and the knee bottom side 2 a is rotatably attached to the main frame 3 via the support frame 5. The knee bottom 2a and the leg bottom 2b are connected to each other by a curved bottom 7 which is configured so that a part thereof can be bent in one direction at a predetermined curvature and the remaining portion is not bent. From the knee bottom 2a supporting the thigh to the leg bottom 2b supporting the shin, the knee raising mechanism 8 is configured so that the knee raising operation can be adjusted. The above-mentioned knee raising mechanism 8 is mounted on a motor 11 rotatably mounted on a mounting member 10 protruding from the horizontal pipe 9 of the main frame 3, a linear motion shaft 12 for directly operating, and mounted on a tip of the linear motion shaft 12. Activation arm 1
3 and the main frame 3 so as to be rotatable,
The distal end is constituted by a knee raising arm 15 movably in contact with the back surface of the curved bottom 7 via a rolling member 14.

Therefore, the curved bottom 7 is shown in FIG.
The details will be described below. The curved bottom 7 has a hollow box-shaped structure formed by integral molding of a synthetic resin, and has ribs 16 on the back side for partitioning the inner space vertically and horizontally. In the curved bottom 7, cuts 17 are formed in a wedge shape at approximately half locations at regular intervals in the bottom width direction from the back side to the front side to form the curved portion 7.
The bottom surface 18 is sequentially displaced so that the back surface side is in close contact with each of the bottom blocks 18 defined by the cuts 17 so that the front surface side is convex and curved (bent) at a predetermined curvature. On the other hand, the other half, which is the remaining portion of the curved bottom 7, is formed as a non-curved fixing portion 7b from the back side by a rib 16 partitioning the inside space vertically and horizontally. A support frame 5 supporting the knee bottom 2a and the leg bottom 2b near the end face facing the bed longitudinal direction on the back side of the curved bottom 7,
6 is provided with a hook member 19 for detachably mounting. By engaging the hook member 19 with the engaging holes 20 formed in the support frames 5 and 6 supporting the knee bottom 2a and the leg bottom 2b, the knee bottom 2a and the leg bottom 2 are formed.
b. Further, a guide portion 21 is formed on the rear surface side of the curved bottom 7 so that the rolling member 14 on the distal end side of the knee raising arm 15 constituting the knee raising mechanism 8 can move and abut. In addition, in addition to the curved bottom 7, a curved bottom (not shown) may be provided so that the entire body is bent at a predetermined curvature so that a user of average height can easily use the curved bottom.

The bed 1 of the bed according to the present invention having the curved bottom 7 and the floor undulating mechanism having the curved bottom 7 is constructed as described above. Next, the operation of the curved bottom 7 and The arrangement procedure will be described. First, when the user is shorter than the average height, the bending center position of the bending bottom 7 is shifted toward the knee bottom 2a as shown in FIG. For this purpose, the curved portions 7a of the curved bottom 7 configured to bend at a predetermined curvature are formed on the support frames 5, 6 supporting the knee bottom 2a and the leg bottom 2b so as to come to the knee bottom 2a side. The knee bottom 2a and the leg bottom 2b. In this state, when the motor 11 of the knee raising mechanism 8 is activated to pull the linear motion shaft 12 in, the knee raising arm 15 is tilted via the activation arm 13 attached to the end of the linear motion shaft 12, and Since the guide portion 21 on the back surface of the curved bottom 7 is pushed up while moving via the rolling member 14 at the tip of the knee raising arm 15, the curved portion 7 a of the curved bottom 7 serves as a curved apex and the knee bottom 2 a to the leg bottom 2 b.
, It is possible to bend upward and make the knee raised (see FIG. 1). As described above, since the curved portion 7a of the curved bottom 7 is on the knee bottom 2a side,
It is possible to correspond to the back of the knee of the user whose average height is shorter than the average height, and it is possible to make it easy to use.

On the other hand, when the user is higher than the average height, the bending portion 7a which is the bending center position of the bending bottom 7 is
The knee bottom 2a and the leg bottom 2b are connected to each other by engaging the engagement holes 20 formed in the support frames 5, 6 supporting the knee bottom 2a and the leg bottom 2b so as to come to the leg bottom 2b side. . In this state, the motor 11 in the knee raising mechanism 8 is started, and the knee raising arm 15 is tilted via the linear motion shaft 12 and the starting arm 13 attached to the end of the linear motion shaft 12, so that the leg bottom in the curved bottom 7 is bent. The curved portion 7a closer to the 2b side serves as a curved vertex, and can be bent upward in a convex shape from the knee bottom 2a to the leg bottom 2b to bring the knee up (see FIG. 1). As described above, since the curved portion 7a of the curved bottom 7 is located on the side of the leg bottom 2b, the curved portion 7a can correspond to the back of the knee of a user whose average height is higher than the average height, and can be placed in an easy-to-use state.

As described above, according to the height of the user,
In other words, by simply replacing the curved bottom 7 so that the curved portion 7a of the curved bottom 7 is adapted to the position on the back of the knee, the bent portion of the bottom can correspond to the flexion portion of the body that differs in position depending on the physique of the user. Therefore, there is no need for a mechanism for adjusting the bending position, and there is no need to adjust the bending position, resulting in excellent usability.

[0010]

As described above, according to the present invention, no extra parts are required for adjusting the position of the knee apex, and the weight and cost can be reduced. In addition, it is possible to reduce the trouble of adjusting the knee apex position during on-site assembly. Further, the non-curved portion of the curved bottom can also serve to prevent reverse warpage.

[0011]

[Brief description of the drawings]

FIG. 1 is an explanatory side view showing a curved state in which a curved bottom according to the present invention is arranged and switched from a knee bottom to a leg bottom in a bed according to a user's height.

FIG. 2 is a schematic external perspective explanatory view of a curved bottom applied to the bed shown in FIG. 1;

FIG. 3 is a schematic exploded perspective view showing a mounting structure of the bed shown in FIG. 1 from a knee bottom to a leg bottom and attached to a curved bottom.

[Explanation of symbols]

 1 Bed 2 Bottom 2a Knee Bottom 2b Leg Bottom 3 Main Frame 4 Bottom Unit 5, 6 Support Frame 7 Curved Bottom 7a Curved Part 7b Fixed Part 8 Knee Raising Mechanism 9 Horizontal Pipe 10 Mounting Member 11 Motor 12 Linear Axis 13 Starting Arm 14 Rolling member 15 Knee-up arm 16 Rib 17 Cut 18 Bottom block 19 Hook member 20 Engagement hole 21 Guide part

Claims (2)

(57) [Claims] 1. A curved bottom which is arranged to correspond to a bending position of a human body of a bed provided with a bottom raising and lowering mechanism, wherein a portion within a predetermined range from one end side in the bottom length direction is
A curved portion that is curved at a predetermined curvature in a direction toward the bottom surface side or the back surface side, and reaches the other end side in the bottom length direction.
The remaining part is a fixed part that does not bend, and the bottom length direction
At one end and the other end of the
An engagement means for tying the bottom portion is provided so that the bent portion is brought closer to the bending position of the user according to the user.
Through engagement means at one end and the other end of the
A curved bottom in a bed, which is arranged to be connected to an adjacent bottom. 2. A bed provided with a mechanism for raising and lowering a bottom, wherein a knee bottom for supporting the thigh and a leg bottom for supporting the shin are located in a predetermined range from one end in the bottom length direction, and the bottom surface side or the back surface. While the curved portion is directed to the side and curved at a predetermined curvature, the remaining portion reaching the other end in the bottom length direction is formed.
By the curved bottom which did not bend the fixed part ,
The curved bottom is connected to the knee bottom and the leg bottom via the engaging means so as to be detachably connected via the engaging means so that the curved portion of the curved bottom is brought closer to the bending position of the user according to the user.
Bed with a bottom relief mechanism having a curved bottom, characterized in that so as to couple the beam.