JPH0438770Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improvement of an auxiliary bed whose legs can be folded toward the lower surface of a frame.

[Prior art and its problems] Conventionally, when treating or nursing a patient in a hospital, for example, folding legs provided close to both ends of the neck and legs of the bed frame are raised to allow the patient to rest on the side of the bed when the patient is lying down. An auxiliary bed is often used in which the legs are folded to the lower surface of the frame and stored in the space below the patient's bed after medication is taken.

These auxiliary beds are desired to have a simple structure, light weight, firmness, and ease of movement, but it is extremely difficult to meet all of these requirements.

A conventional auxiliary bed will be explained with reference to FIGS. 4 and 5. The auxiliary bed 1 has a pair of arched legs 4 close to both ends of the neck and foot of the bed frame 3 on which the mattress 2 is placed, and a linear upper connecting rod 5.
The bed frame 3 and the legs 4 are rotatably connected from the sides by a lower connecting rod 6, so that the bed frame 3 and the legs 4 are erected. In addition, the upper connecting rod 5
And the connecting points of the lower connecting rod 6 to the frame body 3 are 7, 9,
Alternatively, the connection points to the leg body 4 are 8 and 10. Since the connecting rods 5 and 6 are made of strong and long steel strips, when used in an upright position as shown in FIG. is relatively large and solid. However, the strength in the direction perpendicular to the longitudinal direction is relatively small due to the bending effect, and there is a drawback that the frame 3, that is, the bed 1 as a whole sways when the bed is used. Further, in the past, the mechanism of a stopper device (not shown) for fixing the legs in a standing state was complicated and required a large number of parts, resulting in an increase in costs.

In addition, the code|symbol 11 is the member for hoisting the frame 3,
Reference numeral 12 denotes a bed moving wheel attached to the outside of the leg 4, approximately in the center. Further, the arcs 13 and 14 are the connecting points 8 and 14 when the legs 4 are folded toward the lower surface of the frame 3 around the connecting points 7 and 9, or when the legs are standing.
Ten trajectories are shown respectively.

[Purpose of the invention] This invention was made to solve the above-mentioned problems of the auxiliary bed that is often used in hospitals. It is an object of the present invention to provide a stable auxiliary bed that can prevent the bed from rolling and also meets the above-mentioned requirements for this type of bed.

[Structure of the invention] The auxiliary bed according to the invention has an arch-shaped leg close to both ends of the neck and foot of the bed frame, and a pair of upper and lower connecting rods that connect the bed frame and the legs from the side. In an auxiliary bed constructed so that the bed legs can be erected by being rotatably connected and stored by rotating the bed legs toward the lower surface of the frame, the bed frame is supported by the upper connecting rod when the legs are standing. The upper connecting rod is inclined from the connecting point to the bed frame, and the upper connecting rod is bent at a predetermined intermediate point where the upper surface touches the lower surface of the bed frame, so that the lower surface of the bed frame can be bent. forming a horizontal part along the horizontal part and connecting its end to the leg body;
The above object is achieved by supporting the bed frame at the horizontal portion.

[Embodiment of the invention] An embodiment of the invention will be described with reference to FIGS. 1 to 3. In this figure, parts that are the same as or equivalent to those shown in FIGS. 4 and 5 are given the same reference numerals, and their explanations will be omitted.

The improvements of this invention over conventional auxiliary beds are as follows:
This is because the shape of the upper connecting rod 5 has been changed. That is, in the conventional auxiliary bed, the strength in the direction perpendicular to the longitudinal direction of the connecting rods 5 and 6 that support the standing leg 4 is relatively small due to the bending action, and when the bed is used, the frame 3 and therefore the bed This has the drawback that the entire leg body 1 sways horizontally, giving the user a sense of instability, and furthermore, a stopper device (not shown) is required to fix the movement of the leg body 4 in the rotational direction in a standing state. This device has a complex configuration;
In addition, since the number of parts is large, installation of this device requires considerable cost.

The shape of the upper connecting rod 15 in the auxiliary bed of the present invention is such that it slopes down parallel to the side surface of the frame 3 from the connecting point 16 of the frame 3, so that the upper surface of the upper connecting rod 15 touches the lower surface of the bed frame 3. After bending at a predetermined intermediate point to form a horizontal portion 18 along the lower surface of the bed frame 3, the horizontal portion 18 is connected to the leg 4 at its end 17.

By configuring the upper connecting rod 15 as described above, when the bed is used with the legs 4 standing,
The frame body 3 has its lower surface connected to the horizontal part 18 of the upper connecting rod 15.
Since the upper connecting rod 15 is supported by the upper surface of the bed, the upper connecting rod 15 is strongly suppressed by the weight of the frame 3 and other objects and does not sway horizontally, making it possible to obtain an extremely stable auxiliary bed. Therefore, the leg 4
There is no need to attach a fixing stopper device, and compared to conventional auxiliary beds, it is possible to provide an auxiliary bed that is simpler in structure, lighter in weight, and moreover inexpensive.

[Effects of the invention] The auxiliary bed according to the invention has arch-shaped legs close to both ends of the neck and foot of the bed frame, and a pair of upper and lower connecting rods that connect the bed frame and the legs from the side. The connecting rod is tilted from the connection point of the frame, and the upper surface is in contact with the lower surface of the frame so that the frame can be supported horizontally by the upper connecting rod when standing. Since the bed is bent at certain points to form a horizontal part and connected to the leg, it has the effect of eliminating lateral sway when using the bed and giving the user a sense of stability, compared to conventional auxiliary beds. Furthermore, since there is no need for a stopper device for fixing the movement of the standing leg, it is possible to provide an auxiliary bed that is simpler in structure and lighter in weight than conventional auxiliary beds, and is also strong and inexpensive. .

[Brief explanation of drawings]

1 to 3 show an embodiment of the auxiliary bed according to the present invention, in which FIG. 1 is a side view of the main part when the legs are erected, FIG. 2 is a side view of the main parts when the legs are stowed, and FIG. The figure is a plan view of the main part when the legs are erected. FIGS. 4 and 5 show a conventional auxiliary bed, with FIG. 4 being an overall side view and FIG. 5 being a side view of essential parts when the legs are erected. 1... Auxiliary bed, 3... Frame body, 4... Leg body,
6...Lower connecting rod, 15...Upper connecting rod 16,1
7...Connection point, 18...Horizontal part.

Claims (1)

[Scope of utility model registration request] Close to both ends of the neck and foot of the bed frame, legs are erected and connected rotatably from the side between the bed frame and the legs by a pair of upper and lower connecting rods, respectively. In the auxiliary bed configured such that the body can be rotated and stored on the lower surface side of the bed frame, the upper connecting rod is attached to the bed so that the bed frame can be supported by the upper connecting rod when the bed frame is standing. The upper connecting rod is bent at a predetermined intermediate point where the upper surface of the upper connecting rod touches the lower surface of the bed frame to form a horizontal portion along the lower surface of the bed frame, and the end portion An auxiliary bed, characterized in that it is connected to the leg body and supports the bed frame body at the same horizontal portion.