JP2673914B2 - High altitude evacuation device for wheelchair - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates generally to a high altitude evacuation device, and more particularly to a high altitude evacuation device for wheelchairs that does not require power.

[0002]

2. Description of the Related Art Conventionally, a high altitude evacuation device for a healthy person is known which is equipped with a descending speed adjusting means. For example, an ultrahigh altitude evacuation device under the technical cooperation between WAHLEFELD of Germany and the applicant of the present invention is commercially available under the trademark of Evacuator.

Further, a gondola lifting device for building exterior work is also known.

[0004]

The above-mentioned evacuation device has a fast descending speed, a small lift, and is not suitable for evacuation in a wheelchair, and it is necessary for the evacuee to operate it by himself / herself. It was Further, the above-mentioned evacuation device tends to not operate smoothly when the load applied to the wire wound around the pulley provided therein is too large. Therefore, if an extra load is applied to the wire between the pair of gondola and the wheelchair, smooth and reliable lifting of the evacuator cannot be guaranteed.

Further, the above-mentioned gondola lifting device is operated by using power, and cannot be used if the power source has a failure.

[0006]

SUMMARY OF THE INVENTION Therefore, the present invention is based on the above-mentioned application.
Highly safe and smooth solution of problems caused by the coming technology
The purpose is to provide a high altitude evacuation device for wheelchairs
And That is, the high-altitude evacuation device for wheelchairs according to the present invention,
The pillar and the beam that protrudes on both sides close to the upper end of the pillar
Post hand with a pair of post sheaves provided on the post
Steps and a pair of gongs with gondola sheaves on top of each
And a gondola suspension means having a suspension wire,
Ascending / descending speed adjustment device fixed to the column and speed adjustment wire
An ascending / descending speed adjusting means (4) having:
A pair of lifting jacks each provided, and each lifting jack
Can be moved up and down by means of a sheave and a speed
A pair of sheave supports having a sheave for the degree adjusting wire;
Of the ascending / descending position adjusting means and the locking position and the releasing position
Between a pair of hooks that can be moved between
The biasing means for biasing the hook and the hook to the biasing means.
With the handle that moves to the release position against the biasing force of
To have. The pair of gondola is on both sides of the column.
Further, it is arranged below the pair of beams. Above suspension
One end of the ear is fixed to one of the pair of gondola.
And a pair of sheave supports in the lifting position adjusting means.
The other end through the respective sheaves for the suspended wires of the other
Fixed to the gondola, climbing up a pair of gondola alternately
It is connected and supported so that it can be moved up and down between the stand and the lowered position. Above speed
The degree adjusting wire has one end of the pair of sheave supports.
Fixed on one side, one gondola gondola sheave, one
Sheave for one speed adjustment wire, one support sheave, above
Ascending / descending speed adjustment device, the other support sheave and the other gond
After being successively laid around the gondola sheave of La, the other end
The pair of gondola is fixed to the other sheave support.
Adjust the vertical speed of. Each of the above pair of lifting jacks
Hold when the corresponding gondola has almost reached the raised position.
It is dynamically operated to further raise the corresponding sheave support.
Lock part of the corresponding gondola to the corresponding hook.
Let Each of the pair of handles includes the pair of hooks.
After placing the wheelchair on the gondola locked on one side,
Locked by operating against the biasing force of the biasing means.
Move the hook in the open position to the release position, and
The gondola with the wheelchair on it depending on the load
Lower it and raise the empty gondola. Thus, the caregiver can easily evacuate an unhealthy person who needs a wheelchair from a high place safely, at a relatively low speed, and by a simple assistance work.

[0007]

1 is a front view of a wheelchair height evacuation device according to an embodiment of the present invention, and FIG. 2 is a side view thereof.

In the figure, 1 is a supporting means, 2 is a gondola (a pair), 3 is a gondola suspension means, 4 is a lifting speed adjusting means,
Reference numeral 5 denotes a pair of lifting position adjusting means, and 6 denotes hook means.

The support means 1 comprises a support 11, a beam 12 which is adjacent to an upper end of the support 11 and protrudes on both sides, and a pair of support sheaves 1.
And 3.

The pair of gondola 2 has a gondola sheave 21 at the top thereof.

The gondola suspension means 3 has a suspension wire 31.

The ascending / descending speed adjusting means 4 has an ascending / descending speed adjusting device 41 fixed to the column 1, and a speed adjusting wire 42.

A pair of lifting position adjusting means are shown in FIGS.
In Figure 3, one of which is shown in detail in Figures 3 and 4. FIG. 3 shows the lifting position adjusting means 5.
Is an enlarged front view and FIG. 4 is an enlarged side view thereof. The elevating position adjusting means 5 has an elevating jack 51 provided on the beam 12, and a sheave support 52 that can be moved up and down by the elevating jack 51. The sheave support 52 includes a sheave 53 for suspension wire and a sheave 54 for speed adjusting wire. Have and.

The pair of hook means 6 are substantially equivalent, one of which is shown in detail in FIGS. FIG.
6 is an enlarged side view of the hook means 6 and its peripheral portion.
Is a front view thereof, and FIG. 7 is a plan view thereof. Hook means 6
Is a hook 61 movable between two positions of a locking position and a releasing position, a biasing means 62 for biasing the hook 61 to the locking position, and a releasing position of the hook 61 against the biasing force of the biasing means 62. And a handle 63 that is moved to the.

The pair of gondolas 2 are arranged below the pair of beams 12 on both sides of the support column 1. The suspension wire 31 has one end fixed to one of the pair of gondolas 2, and the lifting position adjusting means 5 is provided. Pair of sheave supports 5 in
That it is wound around the 2 of each of the suspension wire sheave 53
The other end is fixed to the other gondola 2, and these gondolas 2 are alternately connected and supported so as to be able to move up and down between a raised position and a lowered position.

One end of the speed adjusting wire 42 is fixed to the one sheave support 52, and the one gondola 12 is fixed.
Of the gondola sheave 21, one of the speed adjustment wire sheaves 54, one of the pair of support sheaves 13, the lifting speed adjustment device 41, the other of the pair of support sheaves 13, the other speed adjustment wire sheave 54, and the other of the gondola 12 The gondola sheave 21 is sequentially wound around and fixed to the other sheave support 52 to adjust the lifting speed of the pair of gondola.
It should be noted that the ascending / descending speed adjusting device 41 has a pulley around which the speed adjusting wire 42 is wound, and the brake shoe / weight is pressed against the brake drum by a centrifugal force proportional to the rotation speed of the pulley, and is proportional to the centrifugal force. It has a structure that gives a braking force. Such an ascending / descending speed adjusting device is sold in Japan by Eagle Clamp Co., Ltd. (one of the applicants of the present application) under the trade name of Evacuator. Therefore, details of its structure will not be described.

Each of the lifting jacks 51 is manually operated when the corresponding gondola 2 almost reaches the raised position to further raise the corresponding sheave support body 52, and a part of the corresponding gondola 2 is handled. The wheelchair is placed on the gondola 2 locked to one of the pair of hooks 61, and then each of the pair of handles 63 is operated against the biasing force of the biasing means 62. Thus, the hook 61 in the locked state is moved to the release position, and the gondola 2 on which the wheelchair is placed is lowered and the empty gondola 2 is raised due to the difference in load between the pair of gondola 2.

The basic configuration of the present invention has been outlined above. The first feature of the present invention is that the ends of the suspension wire 31 wound around the pair of suspension wire sheaves 53 are connected to the respective gondola 2 respectively. By suspending the suspension means 3 by fixing it to the top of the pair, the suspension means is used as a balance sheave (balance sheave) mechanism to substantially support the entire load of the pair of gondola 2 and to alternately raise and lower the gondola. With
In a normal state, the load of the gondola 2 is used for adjusting the ascending / descending speed without applying the load to the ascending / descending speed adjusting means 4, thereby ensuring the smooth and reliable operation of the ascending / descending speed adjusting device 41 and cutting the suspension wire. In this case, the safety is ensured by supporting the load of the gondola 2 by the speed adjusting wire 42.

The second feature of the present invention is that the suspension wire 31 or the speed adjusting wire 42 is controlled by the elevating position adjusting means 5.
When the one gondola 2 reaches the lowered position due to the extension of the other, and the other gondola 2 does not completely reach the raised position, the caregiver operates the handle 55 of the lifting jack 51 to limit the length. That is, the elevation position of the gondola (or the length of the suspension wire 31 or the speed adjustment wire 42) can be adjusted within the range.

A third feature of the present invention is that the hook means 6 is provided so that the gondola 2 is automatically locked when the gondola 2 is moved to the raised position, and the assistant uses the handle 63 and the biasing means 62. By releasing the gondola 2 from the hook 61 when operated against the biasing force, the gondola lifting operation is prevented from starting without the wheelchair (not shown) being completely placed on the gondola 2. That is. A lock device is provided in the above-described lifting speed adjusting device (evacuator) 41, but since it is installed on the column 11, it is not appropriate to operate this lock device for an unhealthy person who needs a wheelchair. Absent. Therefore, during normal operation, the lock device of the ascending / descending speed adjusting device (evacuator) 41 is released, and if the hook means 6 does not operate, the assistant operates the lock device to lock the gondola. It is double. By the way, since the ascending / descending speed adjusting device (evacuator) 41 is also equipped with a speed changing device, it is possible to adjust the ascending / descending speed by the operation of a caregiver if necessary.

Other features of the illustrated embodiment will be described below.

The pillar 11 is fixed to the side wall of the building by a plurality of fixing means spaced apart in the longitudinal direction, but in the illustrated embodiment, a U-shaped horizontal member 15 is provided at the tip of the arm 14 extending from the pillar. Is provided to receive the floor of the building's veranda in the recess of the U-shaped member and to secure it with bolts and nuts. Although only one arm and one U-shaped member are shown in FIG. 2, a plurality of fixing means are provided in the middle portion of the column 11 which is omitted.

The pillar 11 is provided with a landing structure which is substantially aligned with the floor surface of the veranda on each floor (is flush) and a protective structure 16 having a fence covering the side surface of the landing gear between the movement paths of the pair of gondola 2. It is provided on each floor to ensure the safety of access to the lifting speed adjusting device 41. However, in a building with a relatively large number of floors, the device of the present invention is provided as a dedicated device on each floor, or one common device is provided on the second and third floors to determine whether the evacuation efficiency is high. It is possible to make a compromise with the equipment cost of. In these cases, the protection structure 16 may be provided only on the stop floor. In addition, movable or removable fences are provided at the boarding positions of the gondola on both sides of the protective structure 16.
It is desirable to protect with a fence during normal times, and to move or remove the fence during evacuation to open the boarding passage.

Each of the pair of gondola 2 is provided with at least a pair of casters 22 which are vertically spaced apart from each other, thereby smoothly guiding the gondola 2 along the side surface of the column 11. Each gondola 2 is further rotatably supported by a horizontal axis orthogonal to the support shaft of the caster 22 (two pairs in the illustrated embodiment).
The wheels 23 are provided to guide the gondola 2 along the U-shaped rails 113 provided on the front and rear surfaces of the column 11. Thus, the gondola 2 smoothly moves up and down along the pillar 11.

Further, the bottom of the gondola 2 is provided with a plurality of shock dampers 24 for absorbing the impact at the time of landing. The shock damper 24 may be a mechanical spring, a gas spring, other known elastic means, or a combination thereof. Doors 25 are provided on the front and rear surfaces of the gondola 2. The door 25 has, for example, a hinge at its lower edge on the floor, and is provided with at least one, preferably a pair of door locking links 26, which are two link arms pivotably pivotable in the middle. It consists of These link arms can be immediately understood by referring to the door shown in the open state on the building side (right side in the figure) of the gondola 2 in the raised position in FIG. A gas spring 28 having a telescopic rod 27 is provided between the door locking link 26 and the gondola 2, one end of which is pivotally attached to the vertical frame of the gondola, and the other end of which is pivotally attached to one link arm of the link 26. ing. The gas spring 28 normally has a biasing force in the extending direction, and the link arm is substantially aligned with the door 25 opened substantially horizontally, and a stopper 29 for preventing further rotation is provided. . Thus, the opened door 25 is kept open. When closing the door 25, the gas spring 28 is compressed by pressing the upper end of the door while pushing the bent portion of the link arm downward, and the door 25 is closed. The door 25 is locked by a lock R in the closed state. The lock R may be of any type, but it can be self-locking, preferably of the type that is manually released. It is safe to provide a wire mesh or plate-shaped protective wall at least on the lower part of the side surface. In the case of fire, a barrier of insulating material is also desirable. Further, in the illustrated embodiment, a flexible connecting means C such as a string, a wire, or a chain is provided between the upper ends of the doors 25 facing each other before and after the gondola 2, and one or more sheaves (four sheaves in FIG. 2) are provided. ) To support
When one of the opposing doors 25 is open, the connecting means is in a tensioned state, preventing the other door from being accidentally opened. If both of the opposing doors 25 are closed, the coupling means C will relax between the sheaves (see contrasting gondolas located above and below in FIG. 2).

In the closed state, the door 25 functions as a side wall of the gondola to prevent the wheelchair from falling,
It functions as a deck when opened.

The ascending / descending position adjusting means 5 is fixed by bolts and nuts to a support plate SP welded on the beam 12, for example, and the ascending / descending jack 51 rotates a worm gear (not shown) by a handle 55 in the illustrated embodiment. The worm gear meshes with the screw cut on the vertical rod 56,
Although shown as elevating and lowering, any jack or elevating device known in the art may be used as long as it is suitable for the purposes of the present invention. Sheave support 5
2 has a U-shaped side surface (FIG. 4), the bottom plate of which is fixed to the upper end of the vertical rod by a plurality of bolts, and the pair of upper and lower rods 58 extending through the opposite side plates are fixed to the beam 12. Further, it is guided along the slit S provided on the opposite side plate. The suspension wire sheave 53 and the speed adjustment wire sheave 54 are pivotally supported between the opposite side plates of the sheave support 52.

The hook 61 has a pair of L-shaped structural portions 64 having a generally L-shaped side surface shape (FIG. 5), and a horizontally extending horizontal connecting structural portion for connecting the structural portions 64 in parallel and spaced apart from each other. And 65. Thus, when the hook 61 is viewed from the front, the hook 61 has an inverted U-shaped front shape. The vertical extension of each L-shaped structural portion 64 has a pair of side plates when viewed from the front view (FIG. 6), and wheels 67 are pivotally mounted between the side plates. Beam 1
Extension part 1 extending from 2 to the building side (right side in Fig. 5)
6 is provided with a pair of long hanging structures 17 and a pair of short hanging structures 18 (FIG. 5), and these hanging structures 17, 18 each have a pair of opposing side plates when viewed from the front (FIG. 6), Rollers 19 (six in total) are axially supported by shaft pins P between the side plates. In FIG.
The roller 19 pivotally supported by the short depending structure 18 is hidden behind the roller 19 pivotally supported at the upper part of the long depending structure 17. The hook 61 can be moved in the left-right direction in FIG. 5 by these rollers 19. As shown in FIG. 6, the biasing means 62 is composed of four tension springs 62, one end (right side in FIG. 5) of each spring is fixed to the hook 61, and the other end has a long hanging structure 1.
7 and the hook 61 is always in the locking position (see FIG. 5).
The position drawn in) is biased.

As is apparent from FIGS. 7 and 5, the handle 63 is pivotally attached at one end to the horizontal joint structure portion 65, and the middle portion of the handle 63 is pivotally attached to the support structure portion depending from the beam extension 16. The other end (operating end) of the handle is further extended. In FIG. 7, by operating the operating end of the handle 63 from the locking position shown by the solid line to the releasing position shown by the chain double-dashed line, the cross beam member B arranged near the top of the gondola 2 is released. . At the time of this release, the wheel 67 avoids the friction between the cross beam member B and the hook 61 to facilitate the release operation. When the gondola 2 moves from the lowered position to the raised position, the cross girder member B hits the inclined cam surface formed on the lower side surface of the tip portion of the hook, and the hook 61 moves.
Is pushed to the release position (to the right in FIG. 5) against the biasing force of the biasing means 62, and when the cross member B moves above the wheel 67, the hook 61 is locked by the biasing means 62 (see FIG. Return to the position (illustrated in 5) and lock the gondola 2.

The specific examples of the present invention have been described in detail above, but the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the technical idea of the present invention. Is.

For example, in the above description, the gondola 2
Has been described as stopping on each floor of the building, but in this case, which floor may be given priority for evacuation may be a problem, and evacuation efficiency may be poor. Therefore, it is desirable to provide a dedicated evacuation device on each floor, but such a modification will be immediately conceived by those skilled in the art without needing to explain it again.

The speed adjusting device 41 may be of any known type as long as it meets the purpose of the present invention.

The structure of the hook means 6 does not have to be the structure shown in the drawing, but may be any structure as long as it satisfies the minimum required requirements described in the claims. Although some modifications have been described above, modifications of the present invention are not limited to the above modifications.

[0034]

The effects of the present invention are as follows.

(1) Since this apparatus does not require a power source such as a power source, it can be used without any trouble even if the power source fails. (2) Since the gondola is doubly connected by the suspension wire and the speed adjustment wire, the safety is high against a wire cutting accident.

(3) Since the suspension wire for supporting the load of the gondola is provided, the load of the gondola is not applied to the hoisting speed adjusting means, the hoisting speed can be adjusted smoothly and reliably, and the lift is increased. It is possible.

(4) Due to the winding and fixing mode of the wire of the elevating / lowering speed adjusting means, an elevating / lowering speed which is slightly lower than that of the evacuation apparatus for healthy persons can be obtained, which is suitable for the evacuation apparatus for wheelchairs.

[Brief description of the drawings]

FIG. 1 is a front view of a high-altitude evacuation device for wheelchairs according to an embodiment of the present invention,

2 is a side view of the device of FIG. 1,

FIG. 3 is an enlarged front view of the lifting position adjusting means,

4 is an enlarged side view of FIG. 2,

FIG. 5 is an enlarged side view of the hook means and its peripheral portion;

6 is a front view of a portion corresponding to FIG. 5,

FIG. 7 is a plan view of a portion corresponding to FIGS.

[Explanation of symbols]

 1: Strut means 2: Gondola 3: Gondola suspension means 4: Lifting speed adjusting means 5: Lifting position adjusting means 6: Hook means 11: Struts 12: Beams 13: Strut sheaves 14: Arms 15: Horizontal members 16: Protective structure 17: Long hanging structure 18: Short hanging structure 19: Roller P: Shaft pin 21: Gondola sheave 22: Caster 23: Wheels 24: Shock damper 25: Door 26: Door locking link 27: Telescopic rod 28: Gas spring 29: Stopper C: Connecting means R: Lock B: Cross member 31: Suspending wire 41: Lifting speed adjusting device 42: Speed adjusting wire 51: Lifting jack 52: Sheave support 53: Suspending wire sheave 54: Speed adjusting wire sheave 55: Handle 56: Vertical rod 58: Rod S: Slit SP: Support plate 61: Hook 62:倚 means 63: handle 64 :: L-shaped structural part 65: horizontal coupling structure portion 67: a wheel

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akihiko Okamoto 2-3-12 Tomiokita, Nara, Nara Prefecture Eagle Clamp Co., Ltd. (72) Inventor Hatsune Tsuyama 2-3-12 Tomiokita, Nara, Nara In Eagle Clamp Co., Ltd. (72) Inventor Ken Waki 1-13-20 Hatagaya, Shibuya-ku, Tokyo Inside Fire Research Institute, Tokyo Metropolitan Fire Department (72) Inventor ▲ Takahashi Futata 1-13 Hatagaya, Shibuya-ku, Tokyo No. 20 Tokyo Fire Department Fire Science Research Institute (72) Inventor Yoji Nagai 1-13-20 Hatagaya, Shibuya-ku, Tokyo Tokyo Fire Department Fire Science Research Institute (72) Inventor ▲ Takahashi Kazuhisa Shibuya-ku, Tokyo 1-13-20 Hatagaya, Tokyo Metropolitan Fire Department, Fire Science Institute

Claims (1)

(57) [Claims] 1. A column (11) and both ends of the column in close proximity to their upper ends.
Beam (12) projecting to the side, and a pair provided on the column
Support means (1) having a support sheave (13) and a pair of gondola having a gondola sheave (21) at the top thereof.
Gondola suspension means (3) having a ndola (2) and a suspension wire (31)
And an ascending / descending speed adjusting device (41) fixed to the column (1)
And a lifting speed adjusting hand having a speed adjusting wire (42)
Step (4) and a pair of lifting jacks respectively provided on the pair of beams (12)
(51) and lifting by the respective lifting jacks (51)
Possible, each with a suspension wire sheave (53) and speed control
A pair of sheave supports having a straightening wire sheave (54)
Lifting position adjusting means (5) having a body (52) and a pair of hooks movable between a locking position and a releasing position
(61) and the respective hooks (61) are biased to the locking position.
The biasing means (62) for causing the hook (61) to be biased.
It moves to the release position against the biasing force of the means (62).
A handle (63), and the pair of gondola (2) is provided on both sides of the column (1).
Further, the suspension wire (31) is disposed below the pair of beams (12), and one end of the suspension wire (31) is the pair of gons.
The lifting position adjusting means is fixed to one side of the drive
Each suspension of the pair of sheave supports (52) in (5).
Through the sheave (53) for the overhead wire, the other end
Fixed to the gondola (2), alternating a pair of gondola
The speed adjustment wire (42) is connected and supported so as to be vertically movable between an ascending position and a descending position, and one end of the speed adjusting wire (42) is provided with
Fixed to one side of the sheave support (52) and one gond
Gondola sheave (21) of LA (2), one speed adjusting wheel
Ear sheave (54), one support sheave (13), top
The lifting speed adjusting device (41), the other support sheave (1
3) and the gondola sheave (2) of the other gondola (2)
After being sequentially wound around 1), the other end is the other sheave
It is fixed to a support (52) and the pair of gondola rises.
Adjusting the descending speed, each of the pair of lifting jacks (51) has a corresponding go
When the handler (2) has almost reached the raised position, it must be manually operated.
Made to further raise the corresponding sheave support (52).
Let the corresponding gondola (2) part of the corresponding hook
(61) so that each of the pair of handles (63) has a pair of hooks.
Wheelchair on the gondola (2) locked on one side of the wheel (61)
After placing, against the biasing force of the biasing means (62)
Release the hook (61) in the locked state by operating
Move to the released position and load the pair of gondola (2)
The gondola (2) on which the wheelchair is placed is lowered due to the difference in
And configured to raise an empty gondola (2).
A high-altitude evacuation device for wheelchairs.