JP2002000662A - Device for adjusting inclination angle of convertible table of stretcher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device capable of easily inclining and fixing an angle at a specific position of a convertible table of a stretcher. SOLUTION: A movable stretcher comprises a horizontal base table frame 3 of which the upper part of a base table 2 with casters 1 loads a lower part of a body, and a convertible table frame 5 which loads an upper part of the body transferable from a horizontal state to an almost upright state. A damper pivot shaft 6 is mounted at a central position in the direction of width close to a lower end part lower than a rotational base point 4 in this horizontal base table frame 3. A damper pivot shaft 7 is mounted at a central position 5a of an outside end on the convertible table frame 5. Pivotally supporting parts 8a, 8b which are placed at both ends of a damper 8 sealed with a high pressure gas is pivotally supported. At the pivotally supporting part 8a placed at either end of the damper 8, a constant pressing state is applied in the direction to prevent a rotation of the damper 8 by a pressure of the damper 8 and a spring 9 between the pivotally supporting parts. A break 10 which is decompression controlled by operating a handling lever 11 mounted on the convertible table frame 5 is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stretcher with a variable platform which can move a caster on a patient and raise the upper body of the person on which the patient is mounted. And a variable table tilt angle adjusting device for fixing.

[0002]

2. Description of the Related Art There have been provided various types of stretchers with a variable platform that allow a patient or the like to move thereon and raise the upper body of the person on which the patient or the like is placed. As a method of adjusting the angle, there has been proposed a method in which the angle can be automatically adjusted by a hydraulic mechanism provided at a lower portion of the variable base.

[0003] However, such an automatic variable table has a complicated structure and a large manufacturing cost, and is heavy, so that the burden on moving the casters is large and the variable table is transported by car or the like to another place. However, there was a problem that the transportation cost became large.

[0004] As a simple structure, there is an apparatus for manually inclining a variable table. However, while the structure is simple, it is difficult to adjust or fix the variable table to an arbitrary inclination angle. It was necessary to lift the variable platform part and to hang it on the position with the name of the fixing bracket, which required a great deal of labor.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has a simple structure of a variable table which can easily adjust the tilt angle of the variable table and fix the position without much effort. Is to provide a stretcher.

[0006]

According to the variable base tilt angle adjusting device of the present invention, the upper part of the base 2 with the casters 1 is provided with a horizontal base frame 3 on which the lower body is mounted, and one end of the horizontal base frame 3 near one end. This is a movable stretcher formed by a variable underframe 5 on which an upper body capable of sliding from a horizontal state to a substantially upright state is provided around a pivot point 4 provided.

In order to solve the above problem, the horizontal base frame 3 is provided with a damper pivot shaft 6 at a central portion in the width direction closer to the lower end than the rotation base point 4, and the variable base frame is provided. 5 is provided with a damper pivot shaft 7 at an outer end central portion 5a to pivotally support pivoting portions 8a and 8b provided at both ends of a damper 8 in which high-pressure gas is sealed, and a pivot on one side of the damper 8 is provided. The support 8a is always pressed between the pivot shaft 6 and the pivot shaft 6 in a direction in which the rotation of the damper 8 is prevented by the pressure of the damper 8 and / or the spring 9, and the operation provided on the variable frame 5 is performed. It is provided with a brake 10 whose pressure is controlled by operating a lever 11.

In the above structure, the brake 1
0, a supporting plate 13 having a circular pressure receiving peripheral surface 13a centered on the pivot shaft 6 is fixedly provided at the center of the supporting shaft 12 erected on the horizontal base frame 3 on both sides at an obliquely upper rear portion thereof. . In addition, a pivoting portion 1 is provided at the base end of the damper 8 where a pivotal support 8a is provided on a double-winged facing wall 14a having both ends bent forward in a U-shape.
4 is fixed to its center rear surface, its pivot 8a is pivotally attached to the damper pivot shaft 6, and a pressing plate 16 having a contact pressing portion 15 on the facing wall 14a against the circular pressure receiving peripheral surface 13a is pivoted. Support the pressing plate 16 to the pivoting portion 14
The pressurized state is maintained by the tip 17 of the damper 8 or the spring 9 provided therein.

Then, by operating the contact pressing portion 15 in the decompression direction via the wire 18 with the operation lever 11 attached to the variable underframe 5, the restraint of the damper 8 is released, and the variable By allowing the frame 5 to slide and releasing the operating lever 11 from the hand, the brake 10 is actuated to fix the tilt angle of the variable underframe 5 at that position.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below based on an embodiment shown in the drawings.

FIG. 1 is a perspective view of a variable table tilt angle adjusting device according to the present invention.
As shown in the figure, the upper part of the base 2 with the casters 1 is provided with a horizontal base frame 3 on which the fixing mat 20 is placed and the lower body is mounted, and a rotation base point 4 provided near one end of the horizontal base frame 3. This is a movable stretcher formed by a variable underframe 5 on which a variable mat 21 capable of sliding from a horizontal state to a substantially upright state is placed at the center and the upper body is placed.

As shown in FIGS. 2 and 4, the horizontal base frame 3 is provided with a damper pivot shaft 6 at the center in the width direction near the lower end portion from the rotation base point 4 and the movable base frame 3 is adjustable. The underframe 5 is provided with a damper pivot shaft 7 at an outer end central portion 5a and pivotally supporting portions 8a and 8b provided at both ends of a damper 8 in which high-pressure gas is sealed. The underframe 5 is constantly urged in the upward direction.

[0013] As shown in FIG. 3, the pressure of the damper 8 and the spring 9 is applied to the pivot 8 a on one side of the damper 8 by the pressure of the damper 8 and the spring 9.
A brake 10 is provided which is always pressed in a direction in which the rotation of the brake lever is prevented, and which is controlled to be depressurized by operating an operation lever 11 provided on the variable underframe 5.

As shown in FIGS. 3 and 4, the brake 10 has a pivot shaft 6 at the center of a support shaft 12 erected on the horizontal base frame 3 on both sides and at an obliquely upper rear portion thereof. A pivot plate 13 having a circular pressure receiving peripheral surface 13a is fixedly provided. At the base end of the damper 8, a pivoting portion 14 having a pivoting portion 8a provided on a wing-shaped facing wall 14a whose both ends are bent forward in a U-shape is fixed at the center rear surface thereof. The damper pivot shaft 6 is pivotally connected to the facing wall 14.
a, a contact pressing portion 15 against the circular pressure receiving peripheral surface 13a;
The pressure plate 16 is pivotally supported, and the pressure plate 16 is maintained in a pressurized state by the tip 17 or the spring 9 of the damper 8 provided in the pivot portion 14.

Then, by operating the contact pressing portion 15 in the decompression direction via the wire 18 with the operation lever 11 attached to the variable underframe 5, the restraint of the damper 8 is released, and By allowing the frame 5 to slide, and by releasing the operation lever 11 from the hand, the brake 10 is actuated so that the tilt angle of the variable underframe 5 at that position can be fixed.

[0016]

The present invention is as described above, and the variable underframe 5 is constantly urged upward by the pressure of the damper 8 containing high-pressure gas. And
When the stretcher is in use, the operation lever 11 is left unattended, so that the brake 10 is working, and the tilt angle of the variable underframe 5 is fixed at that position.

When it is desired to change the angle of inclination, the operation lever 11 is depressed and the brake 10 is released. Then, the variable underframe 5 can be easily raised by the pressure of the damper 8. At this time, the inclination angle can be adjusted manually (while holding up the auction). When the operator releases the operating lever 11, the angle of the variable underframe 5 can be fixed at a position where it is desired to be stopped by the action of the brake 10.

As described above, in comparison with the conventional manual lifting type, the function of the damper 8 makes it possible to easily adjust the inclination angle of the variable underframe and to fix it at one position without much effort. Compared to a fully automatic one and a large one, the structure is extremely simple and lightweight, and a stretcher with a variable platform can be provided at very low cost.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state where a variable underframe of the present invention is inclined.

FIG. 2 is an enlarged perspective view of a variable underframe portion of FIG. 1;

FIG. 3 is a side view of a main part showing a brake part.

FIG. 4 is a side view showing a state where the variable underframe is changed from inclined (shown by a two-dot chain line) to horizontal (shown by a solid line).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Caster 2 Base 3 Horizontal base frame 4 Rotation base point 5 Variable base frame 5a Center part of outer end of variable base frame 6 Damper pivot shaft 7 Damper pivot shaft 8 Damper 8a Damper pivot portion 8b Damper pivot portion Reference Signs List 9 spring 10 brake 11 operating lever 12 support shaft 13 pivotal support plate 13a circular pressure receiving peripheral surface of pivotal support plate 14 pivotal joint 14a double wing-like facing wall of pivotal joint 15 contact presser 16 presser plate 17 tip of damper 18 Wire 19 Pivot of press plate

Claims (2)

[Claims] An upper part of a base (2) with casters (1) has a horizontal base frame (3) on which a lower body is mounted, and a pivot base (4) provided near one end of the horizontal base frame (3). ), A movable stretcher formed by a variable frame (5) on which the upper body can be slid from a horizontal state to a substantially upright state. 4) A damper pivot shaft (6) is provided at a central portion in the width direction closer to the lower end than the damper pivot shaft (7) at the outer end central portion (5a) of the variable frame (5). The pivots (8a) and (8b) provided at both ends of the damper (8) provided and filled with high-pressure gas are pivotally supported, and the damper (8) is provided.
The pivoting portion (8a) on either side of the above prevents rotation of the damper (8) with the pressure of the damper (8) and / or the spring (9) between the pivoting portion (8a) and the pivot shaft (6). A variable platform tilt angle adjusting device comprising a brake (10) which is constantly pressed in a direction and is controlled to be depressurized by operating an operation lever (11) provided on said variable platform frame (5). A brake (10) is provided at a center of a support shaft (12) installed on both horizontal base frames (3) on the both sides and a circular pressure receiving center on a pivot shaft (6) at an obliquely upper rear portion thereof. A pivot plate (13) having a peripheral surface (13a) is fixedly mounted, and both ends of the damper (8) are pivotally connected to a wing-shaped facing wall (14a) bent forward in a U-shape at the base end. A pivot portion (14) provided with a support portion (8a) is fixed at the center rear surface, the pivot portion (8a) is pivotally mounted on the damper pivot shaft (6), and the circular shape is attached to the facing wall (14a). The damper (8), which pivotally supports a pressing plate (16) having a contact pressing portion (15) against the pressure receiving peripheral surface (13a) and provides the pressing plate (16) in the pivoting portion (14). The pressurized state is maintained by the tip (17) or the spring (9), and the wire is moved by the operation lever (11) attached to the variable underframe (5). By operating the contact pressing portion (15) in the depressurizing direction via the key (18), the restraint of the damper (8) is released to enable the variable underframe (5) to slide, and 2. The device according to claim 1, wherein the lever is moved away from the hand so that the brake is actuated to fix the tilt angle of the variable underframe at that position. Variable platform tilt angle adjustment device.