JPS63294854A - Bed - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application 1] The present invention relates to a bed, particularly a rehabilitation bed suitable for standing and walking training.

[Prior art and its problems 1] Conventionally, when you get up from bed and try to walk while standing on the floor, you have to move your hips to the side of the bed before you can put your feet on the floor. I couldn't attach it.

Particularly for patients requiring rehabilitation training, the movement of the lower back was a great burden.

In order to eliminate this inconvenience, the foot part of the bed lowers than before, so that the patient does not have to shift his/her body. Beds have been developed that are convenient for people to defecate.

However, even with this type of improved bed, the height of the descending part where the feet are attached is not the same as the floor surface and there is a step, so when using this type of bed for walking training, it is difficult to avoid obstacles due to this step. Not only can you not move forward or have to walk on the lowered bed at first, making your feet unstable, but especially when you stand up and start walking, the handrails are not in the proper position, which ultimately leads to poor walking training. The problem was that it was not useful.

E. Purpose of the Invention] The present invention has been made to solve the above-mentioned problems of the conventional art. To provide a new bed with handrails that can stably support the bed.

[Structure of the Invention] The bed of the present invention is a bed in which at least the center portion of the lower pinrest supporting the legs of a patient is opened so that the floor surface is exposed toward the front of the bed. It is characterized by a handrail protruding diagonally upward and inward from the main frame.

[Embodiment 1] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

In FIGS. 1 and 2, numeral 1 denotes a main frame made of, for example, an angle member having an angular cross-section, and is disposed on the left and right sides of the bed. The rear end of the main frame 1 (head g
A) is integrally connected by a helad board 2, and the intermediate part is integrally connected by a connecting frame 3.

Below the main frame 1, an auxiliary frame 4 made of, for example, a square pipe is arranged in parallel. Leg plates 5 are provided at the front ends (legs) of the main frame 1 and the auxiliary frame 4.
is installed.

Reference numeral 6 denotes an upper mattress, which is raised from a horizontal position as shown in the figure by a conventionally known actuating means (not shown), and functions as a backrest when the upper body of a human body (patient) is raised.

The central portion 6' of the upper mattress 6, which supports the patient's lower back, is preferably removed during defecation to accommodate a toilet bowl.

The lower mattress 7, which supports the patient's legs, is divided into left and right movable mattresses 7a, 7a.

FIG. 3 is a diagram showing the operation failure with the movable pinerests 7a, 7a removed, and basically shows the parallel link mechanism section 8 and the parallel link 8! It is composed of a descending part 9 that descends to the left and right by the action of the structure part 8.

As is clear from FIG. 4, the parallel link lfi structure 8 consists of two parallel links 8 at a b and an actuating piece 8e connected to their tips by pin joints 8 c and 8 b. The base end of the parallel link 8a is fixed to the rotary drive shaft 10, and the base end of the parallel link 8b is pivotally connected to the main frame 1 etc. by a pivot pin 8''. The rotation drive shaft 10 is also rotatably attached to the main frame 1*.Furthermore, the length of the parallel link 8m=8b, that is, the distance between the pin joint 8c and the rotation drive shaft 10, and the pin joint 8d The distance between the rotary drive shaft 10 and the pivot pin 8f is equal, and the distance between the rotation drive shaft 10 and the pivot pin 8f is equal, and the distance between the two pin joints 8e and 8dVI is equal, so that a parallel link mechanism is constructed as a whole.

Therefore, when the rotary drive shaft 10 is rotationally driven, as shown in Fig. M4, the actuating piece 8 moves from the solid line state to the imaginary line state while maintaining its posture, so that it becomes integral with the actuating piece 8e. As shown in the figure, the lowering part 9 also moves to open left and right while descending while maintaining a horizontal state.

As is clear from FIG. 4, the parallel link 8d is bent into a trapezoidal shape so as not to interfere with the auxiliary frame 4 when pivoted downward.

FIG. 5 shows the drive WIHII of the rotary drive shaft 10, in which a left and right threaded pongee 12 is connected to the output shaft 11a of the electric motor 11 via a joint 11b.

The left and right threaded pongee 12 has threads symmetrically formed in opposite directions, and the slider 13 is screwed into each thread. The mover 1
3 is connected via a connecting rod 14 to an actuating piece 15 which is fixed to the rotary drive shaft 10.

Therefore, when the electric motor 11 is operated, the left and right threaded pongee 12 rotates, and the movers 13 move along the left and right threaded pongee 12 so as to approach each other or move away from each other. When the mover 13 moves, the rotation drive pongee 10 rotates via the upward operating piece 15 of the connecting rod 14, and as shown in FIG. 4, the parallel link mechanism section 8 is operated.

In Figures 1 and 2, reference numeral 25 denotes a handrail that protrudes diagonally upward and inward from the left and right main frames 1, and the lower pinerest that supports the legs opens and extends toward the front of the bed. When the floor surface is exposed, the user grasps the handrail 25 to keep his/her body stable when standing up with his or her feet on the floor surface, or when starting to walk toward the front of the bed.

This handrail 25 is removable.

In addition, although the bed of the above-mentioned embodiment is designed so that the center/portion of the movable pinerest descends and opens to the left and right, the present invention is not limited to the above-mentioned embodiment, and in short, the bed supports the legs of the patient, etc. Any bed may be used as long as at least the central portion of the lower pinerest is open to expose the floor toward the front of the bed.

[Effect of the invention 1] The handrails protrude diagonally upward from the left and right main frames of the bed, so when walking along the open floor surface in front, it is difficult to grab them with your hands or lean your body against them. You can train your gait while maintaining your stability.

[Brief explanation of the drawing]

FIG. 1 is an external view showing one embodiment of the bed of the present invention, and FIG.
3 is a perspective view of the main part of Iso WIt, FIG. 4 is an explanatory diagram of the operation of the lowering/opening mechanism, and FIG. 5 is an explanatory diagram of the operation of the drive aNII. 1... Main frame, 7... Lower pine tress, 7a.
...Movable mantress, 8...Parallel link mechanism, 25.
··handrail.

Claims (1)

[Claims] In a bed in which at least the center part of the lower mattress that supports the legs of the patient is opened so that the floor surface is exposed toward the front of the bed, handrails are installed diagonally upward and inward from the left and right main frames of the bed. A bed that is characterized by its protruding features.