JP2010158496A - Low care bed raised and lowered steplessly - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the following problems that: a care receiver falls down from a bed to be injured; a caregiver suffers from waste pain; a care receiver feels pressure or a caregiver cannot take care the care receiver from a head side or a foot side when a head board or foot board is high; or the like. <P>SOLUTION: A linear actuator (Fig.2-8) is connected to the center of a middle leg connection frame bridged between the upper ends of the middle legs (Fig.2-3) of three-stage telescopic legs. A floor frame (Fig.5-18) is attached to outer legs by wires attached to the inside lower stages (Fig.2-15) of the outer legs (Fig.2-2) via pulleys (Fig.2-12). In order to vertically move the floor frame from a position 0 cm below the floor to a height allowing the caregiver to take care while maintaining a posture of standing position in conjunction with actuation of the linear actuator, the middle leg of a three-stage telescopic leg is employed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The wire is operated in conjunction with the pulley through the pulley, and the bed floor frame fixed to the outer leg moves up and down. When the linear actuator is lowered to the lowest, the bed floor is also lowest, and when the linear actuator is raised to the highest, the bed floor is highest. Since the operation of the linear actuator is stepless, the bed floor length can be set arbitrarily.

In the invention of claim 2, the bed floor can be operated up and down in the same manner as in claim 1 by changing the fixing method of the linear actuator.

The invention's effect

According to the present invention, the bed floor is lowered to the same height as the futon, so that even if it falls, the bed floor rises to the position of the caregiver, just like a normal care bed, so Can be reduced, and since it is a stepless lifting function, it can be easily transferred to other care devices such as wheelchairs. In addition, the headboard and footboard can be lowered by incorporating the three-stage extendable legs and pulleys, the feeling of pressure can be removed, and care can be provided from the head side and foot side.

FIG. 1 is a sectional view showing a state in which the expansion and contraction of the bed is closed. As shown in the figure, the expansion / contraction part (FIG. 1-9) of the linear actuator is contracted, the outer leg (FIG. 5-15) fixed to the wire descends, and the bed fixed to it (FIG. 5-17) The floor goes down. The lowest level is the lowest level. The lowest possible bed floor length of the present invention (FIGS. 5-18) is the thickness of the bed floor frame material.

FIG. 2 is a sectional view in which the bed extendable legs (FIGS. 2-2, 3, 4, and 4) are raised. The main structure of the present invention is the three-stage telescopic legs (2-2, 2, 3, 4,). As the telescopic part of the linear actuator rises, the wire (FIG. 2-13) of the pulley (FIG. 2-12) extends and the outer leg (FIG. 2-2) is pulled up. At that time, the telescopic legs (inner legs, middle legs, outer legs) are placed on the innermost lowermost part of the outer legs so that the legs are fixed to the outer legs (Figure 2-2) so that they overlap as shown in Figure 2 To. Another feature of this patent is that the bed length is determined by the stroke of the expansion / contraction part (Fig. 2-9) of the linear actuator, and the bed floor can be raised to twice the stroke by applying a pulley.
At present, the standard bed height in Japan is around 60 cm, and the stroke of the linear actuator needs to be 25 cm or more to raise the bed length to that height. To that end, it is also important where the tip of the linear actuator and the pulley are attached. The present invention is attached to the position of the leading edge (FIG. 2-11) of the middle leg. This is to ensure a certain overlapping portion (FIG. 2) on each telescopic leg. The reason why the above conditions (wire attachment position and linear actuator stroke) are necessary is to keep the height of the headboard (head-side elevator cover) and food board (foot-side elevator cover) at 55 cm or less. The reason why the height is 55 cm or less is that care from the head side and the hood side is easy and does not cause a feeling of pressure.

FIG. 3 is a perspective view of a three-stage telescopic elevator. The structure of the present invention is a structure having a three-stage extendable leg and pulling a wire with a linear actuator to move the bed floor up and down. The inner leg (FIGS. 3-4) is round and fixed to the pedestal. The middle leg (Fig. 3-3) forms the center of the function of the elevator. The middle leg connection frame is welded and fixed to the tip of the middle leg as shown in Fig. 4, and the outer leg (Fig. 3-2) The structure fits in the groove. A linear actuator and pulley are attached to the middle leg connecting frame. The bed floor moves up and down with the middle legs.

FIG. 4 shows a method of welding the middle leg, which uses a middle leg connecting frame (4-6) having a width that fits into a groove (FIG. 3-2) of the outer leg (FIG. 3-2).

FIG. 5 is a diagram illustrating a state where the bed floor is raised. It shows that the bed floor frame (FIGS. 5-18) rises to the position of the dotted line when the head side and foot side of the elevator are wound up with wires.

FIG. 6 is a view in which casters (FIGS. 6-16) are attached to the bed. As shown in the figure, this bed can be made by processing the pedestal ((FIG. 6-10) into a U shape and attaching a caster.

FIG. 7 is a diagram of claim 2 in which the operation axis of the linear actuator of claim 1 is changed and its basic operation is the same as that of claim 1. The middle leg lifting frame is fixed in the middle of the middle leg (Fig. 7-3), and the linear actuator is moved up and down to operate the wire (Figs. 7-13 and 13 ') and the outer leg (Fig. 7). -2) The bed floor fixed in (2) goes up and down.

Since the stepless elevating low-bed nursing bed according to the present invention can be industrially mass-produced, it has industrial applicability.

Sectional view when the bed elevator is lowered Cross section of the bed elevator Detailed perspective view of bed lift Detailed view of middle legs and middle leg connection frame Bed cross section Caster installation drawing Elevator cross section of claim 2 The middle leg perspective view of Claim 2

1 C-shaped steel 2 Outer leg 3 Middle leg 4 Inner leg 5 Base frame 6 Middle leg connection frame 7 Middle leg connection frame reinforcement bracket 8 Linear actuator 9 Linear actuator telescopic part 10 Caster base frame 11 Linear actuator tip fixing bracket 12 Pulley 13 Wire 14 Wire base fixing bracket 15 Wire outer leg fixing bracket 16 Caster 17 Bed floor mounting bracket 18 Bed floor frame 19 Middle leg lifting frame 20 Pulley support frame 21 Pulley support

Claims (2)

The first stage (hereinafter referred to as the inner leg) that has a three-stage expansion / contraction is fixed to the base frame, and the second stage (hereinafter referred to as the middle leg) and the third stage (hereinafter referred to as the outer leg) are raised and lowered. It is a technology related to the bed floor lifting function that constitutes a stepless lifting low floor nursing bed, fixing the tip of the linear actuator standing vertically to the center of the base to the center of the middle leg connection frame passed to the upper ends of the left and right middle legs, The pulley is fixed to the tip of the middle leg at both ends, one side of the wire is fixed to the base frame, and the other side is fixed to the lower inner side of the outer leg. Stepless lifting low floor nursing bed where fixed bed floor moves up and down. The linear actuator is fixed via a linear actuator mounting bracket that is attached to the middle of the middle leg connecting frame that is connected to the middle of the middle leg of the three-stage telescopic leg. Function to raise and lower the floor.

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