JP2001238921A - Safety bar support structure and method of assembling the same - Google Patents

Abstract

(57) [Abstract] [Problem] To improve the safety of a user by improving the usability of a safety bar. It can be applied not only to beds for nursing care, but also to general equipment for lying down. SOLUTION: A safety bar 3 for preventing a device user from falling down from a device for lying down such as a stretcher 1 or a bed is provided on a side portion of the device, standing above a surface on which the body is lying down. The device is provided so as to be rotatable between a use position for preventing falling down and the like and a retreat position which retreats from the use position and does not hinder transfer of the user. This allows
The safety bar 3 can be easily used only when the user is prevented from falling down, and when not in use, the safety bar 3 can be retracted to the lower side of the device, so that there is no hindrance. Locking means 6 and 7 are provided to disable the safety bar 3 from rotating and moving at the use position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a safety bar support structure and a method for assembling the same. More specifically, the present invention relates to an improvement in a support structure of a safety bar for preventing a device user from falling down from a device for lying down, such as a stretcher or a bed.

[0002]

2. Description of the Related Art Devices for lying down, such as a bed for nursing care, are used by a user such as a patient, a disabled person or an elderly person (hereinafter simply referred to as "user") from above the bed. Some have a safety bar that prevents them from falling. The safety bar may be integrally fixed to the structural frame, or may be a removable frame structure for convenience in transfer.

[0003]

However, the detachable safety bar has the inconvenience that it must be removed every time the vehicle is transferred. Also, the removed safety bar must be kept somewhere, and may be lost when stored away from the bed.

Therefore, the inventor of the present application has conceived of an easy-to-use safety bar support structure, and such a safety bar support structure is not only a nursing bed but also a moving wheelchair, a stretcher and a body. The present invention has been conceived to be applicable to general equipment that lays down.

An object of the present invention is to provide a support structure for a safety bar that improves the usability of the safety bar, improves the safety of the user, and is applicable not only to a bed for nursing care but also to general equipment for lying down. The object is to provide a suitable assembling method.

[0006]

In order to achieve the above object, the invention according to claim 1 is a safety bar support structure for preventing a device user from falling down from a device for lying down such as a stretcher or a bed. Between the use position on the side of the device that stands up above the surface on which the body is lying to prevent the user from falling, etc., and the evacuation position that retreats from this use position and does not hinder the transfer of the user It is equipped with a safety bar that can be rotated.

[0007] This makes it possible to easily put the safety bar into the use state only when the fall of the user is prevented, and to retreat to the lower side of the device when not in use. It does not get in the way at all. In addition, since it is provided integrally on the side of the device, the problem of removal and loss can be solved.

According to a second aspect of the present invention, there is provided the safety bar supporting structure according to the first aspect, further comprising a lock means for preventing the safety bar from rotating and moving at a use position. Thereby, the safety bar can be locked so that it cannot be rotationally moved at least in the use position,
Even when an external force is applied to the safety bar at the use position, the safety bar does not reverse to the retracted position. For this reason, it is possible to prevent the user from falling down.

According to a third aspect of the present invention, in the safety bar supporting structure according to the second aspect, the locking means is provided on a concave portion provided on one of the safety bar and a member supporting the safety bar and on the other side. This is an extrusion pin that engages with the recessed portion. In this case, the push-out pin can be engaged with the recess only when the safety bar is erected in the use position, and the safety bar can be automatically disabled from rotating.

According to a fourth aspect of the present invention, in the safety bar support structure according to any one of the first to third aspects,
The safety bar in the use position is provided outside the side of the device, and the safety bar is provided with an offset for retracting inside the side of the device in the retracted position.
As a result, the safety bar retracts to the lower part of the device in the retracted position, and rises outside the side of the device in the use position, so the use of the safety bar does not limit the transport area, and it is completely obstructive when not in use. No.

According to a fifth aspect of the present invention, in the safety bar support structure according to any one of the first to fourth aspects,
By supporting the safety bar in a fitted state, it is impossible to move the rotation bar in the axial direction. As a result, it is possible to prevent the assembled safety bar from moving in the axial direction.

According to a sixth aspect of the present invention, the safety bar supporting structure according to any one of the first to fifth aspects is applied to a stretcher. The safety of the vehicle is improved by preventing the vehicle from falling down.

According to a seventh aspect of the present invention, there is provided a device such as a stretcher or a bed which is located on a side of a device for lying down on a body, and which stands on the side of the device above a surface on which the body is laid down and falls down. This is an assembly method for assembling a safety bar that can be rotated between a use position that prevents the use of the safety bar and a retracted position that retreats from this use position and does not hinder the transfer of the user. The safety bar is attached to the device by attaching the bracket to the device after attaching a bracket that prevents the device from moving. According to this method, it is possible to prevent the assembled safety bar from moving in the axial direction regardless of a special assembling method or member.

[0014]

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

FIGS. 1 to 21 show an embodiment in which the present invention is applied to a stretcher which is one of the devices capable of lying down. The stretcher 1 can be changed into a bed having a flat upper surface as shown in FIG. 1 and a seatable chair as shown in FIG. 3 so that the user can move in either a lying state or a sitting state. In the present embodiment, in order to enable such a form change, the frame structure is mainly formed by the frame 2 made of a round pipe which is assembled so as to be bendable as shown in FIG. The frame 2 is made of a light alloy, for example, so that the stretcher 1 has the necessary strength and can be reduced in weight.

In the frame 2, the rotating mechanism can be constituted by a turning pair such as a hinge formed of round pipes having different diameters, and the expanding / contracting mechanism can be constituted by a sliding pair formed by pipes having different diameters. Further, the entire frame 2 can take various structures according to the shape when the form is a bed or a chair. For example, in this embodiment, when the form is changed to a chair, parallelogram frames as shown in FIGS. 3 and 21 are formed on both sides of the chair, and a part 2b of these frames functions as an armrest of the chair. The structure of the frame 2 is formed. This frame 2
When the form is changed to a bed, it becomes flat as shown in FIG. 1 and has a shape suitable for forming a bed thereon.

Further, the frame 2 has a structure having movable safety bars 3 on both sides. The safety bar 3 rises to the use position on the side of the stretcher 1 as shown in FIG. 2 to prevent the user from falling down, and when the user does not need it, for example, when transferring to the stretcher 1. Is located at the retreat position opposite to the use position as shown in FIG.

As described above, the safety bar 3 which can be moved between the use position and the retracted position can be directly assembled to the frame 2, but in this embodiment, the safety bar 3 is rotatably moved to the frame 2 via one set of brackets 5. Assemble as possible,
The axis connecting both brackets 5 can be the center of rotation (turning).

The shape of the safety bar 3 is not particularly limited as long as the safety bar 3 can prevent the user from falling or being displaced at the use position. In the present embodiment, as shown in FIG. 1 and the like, the bar is formed to have a U-shape that is open outward, and the width of the bar is narrowed from the center of rotation to the side of the rotation end. It may be a shape. Further, in the present embodiment, the bar is formed by a hollow member such as a round pipe, but this is not particularly limited.

At the center of rotation of the safety bar 3, a rotation shaft 4 fitted to the bracket 5 is provided. For example, in the present embodiment, as shown in FIGS. 9 and 10, a set of coaxial rotation shafts 4 facing inward to each other is provided, but these may be facing outward to each other, or may be two to one. It does not have to be a pair. In short, if it is a substantially U-shape as in this embodiment, a configuration suitable for the shape of the safety bar 3 may be provided such that one is provided at each end. As shown in FIG. 9, the rotating shaft 4 includes a shaft 4 a fitted into the bracket 5, and a base 4 b supporting the shaft 4 a and hitting the end face of the bracket 5.

The rotary shaft 4 can be integrally formed as a part of the safety bar 3, but in the present embodiment, the rotary shaft 4 is of an assembling type for convenience of formation and production. Specifically, a round hole 4c is provided in the base 4b of the rotating shaft 4, and an end of the safety bar 3 is inserted into the round hole 4c so that they can be integrated. Also,
By making the round hole 4c a screw groove or making the tip of the safety bar 3 pointed, the integration of the safety bar 3 and the rotating shaft 4 can be facilitated, and the strength after the integration can be increased.

The bracket 5 is a support means for assembling the safety bar 3 on a side portion of the stretcher 1 and supporting the safety bar 3 to be rotatable. In this embodiment, as shown in FIGS. 4 and 5, one safety bar 3 is rotatably supported by two brackets 5. The bracket 5
As shown in FIG. 1, the frame 2 that constitutes the stretcher 1 is assembled to a horizontal frame 2 a that constitutes a side portion, and holds the safety bar 3 rotatably about a horizontal axis. In the present embodiment, the bracket 5 is composed of a bar holding portion 5a and a frame mounting portion 5b for convenience of mounting and the like.

As shown in FIGS. 15 and 16, the bar holding portion 5a has a rotary bearing 5c which is a horizontal hole.
Is rotatably supported. An attachment hole 5 for attaching to the frame 2 via the frame attachment portion 5b.
d. The end surface of the bar holding portion 5a is the base 4 of the rotating shaft 4.
b, the safety bar 3 and the rotating shaft 4 are positioned in the axial direction.

On the other hand, the frame mounting portion 5b of the bracket 5
Is a member constituting the bracket 5 integrally with the above-described bar holding portion 5a. In the present embodiment, the bracket 5 has two through holes 5f as shown in FIGS. 17 and 18 so that the bracket 5 can be assembled to the frame 2. I have to. Further, as shown in FIG. 19, both end surfaces of the frame mounting portion 5b are arc surfaces that can come into contact with the outer peripheral surfaces of the frame 2 and the bar holding portion 5a having a circular cross section.

The rotating shaft 4 and the bracket 5 as described above
According to this, the safety bar 3 is assembled to the end of the stretcher 1 as shown in FIGS. 5 to 7, and as shown in FIG. It is possible to reverse between the retreat position.

Here, the stretcher 1 is provided with a means for locking the safety bar 3 at least in the use position so that it cannot rotate and move, so that the safety bar 3 in the use position can be held in an upright state. For example, in the present embodiment, the locking means is formed by the concave portion 6 provided in the shaft portion 4b of the rotary shaft 4 and the push pin 7 which engages with the concave portion 6. It is sufficient that the locking means is provided on one of the pair of rotating shafts 4 (or the bracket 5), and in the present embodiment, the locking means is provided on the side close to the headrest 3 as shown.

The recess 6 is a groove partially provided in the shaft portion 4b as shown in FIGS. 12 to 14, and engages with the tip of the push pin 7 to make the rotary shaft 4 unrotatable. In this embodiment,
As shown in FIG. 1 and the like, a depression 6 is formed at a position facing the lower side when the safety bar 3 stands when the push pin 7 is provided on the lower side of the frame 2.

On the other hand, the pushing pin 7 has its tip
For example, as shown in FIG. 20, the pin is a pin that can stroke within the tubular portion 8. Here, the push-out pin 7 is urged by a built-in urging means (not shown) so that the distal end protrudes, and a handle 9 is provided on the base end side to facilitate pulling by hand. The bracket 5 is attached to a mounting hole 5g (see FIG. 15) provided at a lower portion of the bar holding portion 5a so that the tip thereof faces upward as shown in FIGS.

According to the locking means described above, when the safety bar 3 is in the retracted position as shown in FIG. 7, the push-out pin 7 is retracted by the peripheral surface of the rotating shaft 4, while
As shown in FIG. 8, when the safety bar 3 is rotated and moved upright, the safety bar 3 projects toward the concave portion 6 facing downward,
Automatically engage. Therefore, the safety bar 3 in the use position does not move even when an external force for reversing to the retracted position is applied, and can be reversed only when the user pulls the handle 9 downward and retracts the push-out pin 7.

As shown in FIG. 12 and FIG.
Further, a groove portion 10 smaller than the concave portion 6 is provided at a position on the back side of the shaft portion 4a where the concave portion 6 is provided. Since the groove 10 engages with the tip of the push pin 7 only when the safety bar 3 is at the retracted position as shown in FIG. 7, it is possible to prevent the safety bar 3 at the retracted position from unnecessarily swinging. While maintaining a certain retracted state, the user easily pulls out the safety bar 3 for rotational movement to disengage it, thereby improving the usability.

Further, the safety bar 3 provided on the stretcher 1 as in this embodiment is retracted inward so as not to protrude from the side of the stretcher 1 at the retracted position.
In addition, in the use position, it is convenient for actual use to be located outside the side portion.
As shown in FIG. 8, a horizontal portion 3a for giving a horizontal component to the safety bar 3 is provided near the center of rotation to provide an offset. As a result, as shown in FIG. 4, the safety bar 3 retreats to the lower part of the stretcher 1 in the retracted position, and stands up outside the side of the stretcher 1 in the use position, so that even if the safety bar 3 is used, the transportation area is reduced. It is not restricted and does not get in the way when not in use. In addition, depending on the offset amount, the rotating shaft 4 and the bracket 5 can be arranged below the stretcher 1, so that, for example, a space for arranging the stretchers 1 can be omitted.

Further, as in the present embodiment, the bracket 5
In the structure for supporting the safety bar 3 at the time of assembling, it is possible to disable the axial movement of the rotational movement by supporting the safety bar 3 in a fitted state in the assembly. That is, after mounting the brackets 5 that can prevent the safety bar 3 from moving in the axial direction, the two safety brackets 5 are attached to the frame 2 in a loosely fitted state, so that the assembled safety bar 3 moves in the axial direction. Can be prevented.

The above embodiment is an example of a preferred embodiment of the present invention, but the present invention is not limited to this, and various modifications can be made without departing from the gist of the present invention. For example, in the present embodiment, the concave portion 6 and the push-out pin 7 constituting the locking means are provided on the rotating shaft 4 and the bracket 5, respectively, but their positional relationship and individual arrangements are at least in the safety bar 3 in the upright state.
Is not limited to the above as long as it can be locked so that it cannot rotate and move.

In this embodiment, an example in which the safety bar support structure and the method of assembling the same are applied to the stretcher 1 has been described. However, the present invention is applicable to devices other than the stretcher 1, such as a nursing bed and a moving wheelchair. Can be applied to devices that lie down on the body in general. In these devices, the safety of the safety bar 3 can be improved to improve the safety of the user.

[0035]

As is apparent from the above description, according to the first aspect of the present invention, there is provided a device which is located on the side of the device so as to stand above the surface on which the body is laid and to prevent the user from falling down. The safety bar is equipped so that it can be rotated between the evacuation position and the evacuation position where it does not hinder the transfer of the user, so the safety bar can be easily used only to prevent the user from falling down. And when it is not in use, it can be evacuated to the lower side of the device, so it does not get in the way at all. In addition, since it is provided integrally on the side of the device, the problem of removal and loss is also eliminated.

According to the second aspect of the present invention, since the locking means for preventing the safety bar from rotating and moving at the use position is provided, the safety bar can be locked at least from the use position so that it cannot rotate and move. Even when an external force is applied to the safety bar at the use position, the safety bar does not reverse to the retracted position.

According to the third aspect of the present invention, the locking means is constituted by the safety bar, the concave portion provided on one side of the member supporting the safety bar, and the push pin engaged with the concave portion provided on the other side. Therefore, it is possible to engage the push pin with the recess only when the safety bar is raised in the use position,
The safety bar can be automatically disabled from rotating.

According to the fourth aspect of the present invention, the safety bar at the use position stands outside the side of the device, and at the retracted position, the safety bar has an offset for retracting inside the side of the device. In the retracted position, the safety bar can be retracted to the lower portion of the device, and can be raised outside the side of the device in the use position. Therefore, even if the safety bar is used, the transportation area is not limited, and when not in use, it is not at all obstructive.

According to the fifth aspect of the present invention, since the rotation of the safety bar in the axial direction is disabled by supporting the safety bar in the fitted state, the assembled safety bar moves in the axial direction. Can be prevented.

According to the sixth aspect of the present invention, since the safety bar support structure is applied to the stretcher,
It is possible to improve the usability of the safety bar in the stretcher, prevent a patient or the like on the stretcher from falling, etc., and enhance the safety.

According to a seventh aspect of the present invention, a safety bar rotatable between a use position and a retracted position is attached to a device after mounting a bracket for preventing the safety bar from moving in the axial direction. Therefore, it is possible to prevent the assembled safety bar from moving in the axial direction regardless of a special assembling method or member.

[Brief description of the drawings]

FIG. 1 is a side view of a stretcher showing one embodiment of the present invention.

FIG. 2 is a side view of the stretcher in which a safety bar is erected.

FIG. 3 is a side view showing a stretcher that has been changed into a chair.

FIG. 4 is a view of the stretcher in which the safety bars on both sides are rotationally moved to a use position as viewed from the headrest side.

FIG. 5 is a partial plan view showing a safety bar support structure.

FIG. 6 is a partial side view showing a safety bar support structure.

7 is a view of the safety bar support structure shown in FIG.

FIG. 8 is a view showing a state of rotational movement of a safety bar.

FIG. 9 is a plan view showing a safety bar and a rotation axis.

FIG. 10 is a side view showing a safety bar and a rotation shaft.

FIG. 11 is a view of the safety bar and the rotation shaft shown in FIG.

FIG. 12 is a side view showing the structure of the rotating shaft.

FIG. 13 is a plan view showing a structure of a rotating shaft.

14 is a view of the rotation axis shown in FIG. 13 as viewed from the side opposite to the headrest.

FIG. 15 shows a structure of a bar holding portion of a bracket (A).
It is the figure seen from the side view and (B) side.

FIG. 16 is a bottom view of the bar holding unit shown in FIG.

FIG. 17 is a plan view showing a structure of a frame attaching portion of the bracket.

FIG. 18 is a side view showing a structure of a frame attaching portion of the bracket.

FIG. 19 is a side view of the frame mounting portion shown in FIG. 18;

FIGS. 20A and 20B show an example of a configuration of an extrusion pin, in which FIG. 20A is a state in which the tip is protruded, and FIG.

FIG. 21 is a perspective view showing a frame structure of the stretcher.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Stretcher 2 Frame 2a Horizontal frame 3 Safety bar 4 Rotation axis 5 Bracket

Claims (7)

[Claims] 1. A support structure for a safety bar for preventing a device user from falling down from a device such as a stretcher or a bed for lying down on a body, wherein the device stands on a side of the device above a surface on which the body is lying. Wherein the safety bar is provided so as to be rotatable between a use position that prevents a user from falling down and the like and a retreat position that retreats from the use position and does not hinder transfer of the user. Support structure. 2. The safety bar support structure according to claim 1, further comprising a lock means for preventing the safety bar from rotating and moving at a use position. 3. The locking device according to claim 2, wherein the locking means is a push pin that engages with a concave portion provided on one side of the safety bar and a member supporting the safety bar and a concave portion provided on the other side. The safety bar support structure according to claim 2, wherein: 4. The apparatus according to claim 1, wherein the safety bar in the use position is provided outside the side of the device, and has an offset for retracting inside the side of the device in the retracted position. The safety bar support structure according to claim 1. 5. The safety bar support structure according to claim 1, wherein the rotation of the safety bar in the axial direction is disabled by supporting the safety bar in a fitted state. . 6. The safety bar support structure according to claim 1, wherein the safety bar support structure is applied to a stretcher. 7. A use position that is located on a side of a device for lying down such as a stretcher or a bed and stands above a surface on which the body is laid on the side of the device to prevent a fall or the like of a device user. And an assembling method for assembling the safety bar that is rotatable between the use position and the evacuation position that does not hinder the transfer of the user by moving the safety bar in the axial direction. A method of assembling a safety bar, comprising: attaching a bracket for preventing the safety bar to the device after attaching the bracket to the device.