JP2019042159A - Evacuation device - Google Patents

Abstract

To provide an evacuation device capable of increasing withstand load.SOLUTION: The evacuation device liftingly/loweringly drives a lifting/lowering platform between a standby position held in an evacuation opening 3 opened in an upper floor-side base part 2 and a lower floor surface, along guide columns 1 erected from an upper floor to a lower floor. The guide columns 1 respectively correspond to adjacent edges 7 located adjacent to an entrance rim 6 that becomes an entrance to the lifting/lowering platform 5 and disposed at an intermediate position between a central axis position and an inner-side rim 8, the central axis position passing through a center (G) of gravity of the lifting-lowering platform 5 and being parallel to the entrance rim 6.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an evacuation device.

  As an evacuation apparatus which drives a raising / lowering stand along the guide support | pillar erected from the upper floor to the lower floor, the thing of patent document 1 is known. In this conventional example, the lifting platform is driven to move up and down by supporting both ends of one side edge by two guide columns.

Patent No. 5648248 gazette

  However, in the above-described conventional example, since the elevator platform is formed in a cantilever shape, one side edge of which is supported by the guide post, the moment generated at the connecting portion with the guide post increases and the load resistance is increased. There is a problem that there is a limit to

  That is, it is considered that the above-described conventional example in which the lifting platform is moved up and down in a state where one side edge of the lifting platform is connected to the guide support fixed at the upper and lower ends is a structure in which concentrated moments moving to fixed beams at both ends are loaded. Then, since the magnitude of the concentration moment is given by the product of the distance between the center of gravity of the elevator platform and the guide support (arm length) and the load at the center of gravity, the concentration moment becomes larger as the arm length is longer.

  In the structure where the concentrated moment is loaded to the fixed beam at both ends, the bending moment is maximized at the site where the concentrated moment is applied, and further, a large shearing force is generated at the fixed portion at both ends. Considering the fact that an elongated body such as a guide post generally has lower strength against bending moment than a compressive load, repeated use of the evacuation device, that is, repeated application of load on the guide post by moving concentrated moment There is a possibility that problems may occur such as the smooth movement of the lifting device due to the deformation of the guide support.

  The above problems are not a problem, for example, in the light-load type evacuation device where only one person gets on the lifting platform, but a large load specification evacuation device with a large load supported by the lifting platform, such as placing a wheelchair user. It becomes a problem when manufacturing.

  In addition, when manufacturing an evacuation apparatus with a large load specification, it is desirable to reduce the weight of the elevator platform itself as much as possible, but in the above-described conventional example, the guide post is at one side edge of the elevator platform Due to the arrangement, there is a problem that the vicinity of the peripheral edge becomes a dead space which can not be used as a boarding space, and the size of the platform is increased, which in turn causes an increase in the weight of the platform.

  The present invention has been made to solve the above-mentioned drawbacks, and an object of the present invention is to provide an evacuation device capable of increasing the load capacity.

According to the invention said object is
The elevator platform is held between the standby position and the lower floor surface held in the evacuation opening 3 established in the upper floor side floor 2 along the guide post 1 erected from the upper floor to the lower floor It is an evacuation device that drives up and down, and
The guide support 1 corresponds to each of the adjacent edges 7 adjacent to the boarding edge 6 serving as the entrance to the platform 5 and passes through the center of gravity (G) of the platform 5 and is parallel to the boarding edge 6 This is achieved by providing an evacuation device disposed at an intermediate position between the center of gravity axis position and the far side edge 8.

  In the present invention, two guide columns 1 are provided to support each of the pair of adjacent edges 7 of the elevator platform 5. By arranging the guide pillars 1 at the opposite edge without being adjacent to each other, it becomes possible to effectively utilize the central portion of the elevator platform 5 and to effectively utilize the space.

  In addition, since the guide support 1 is disposed at an intermediate portion between the center of gravity axis position parallel to the side edge 6 passing through the center of gravity position (G) of the lifting platform 5 and the back side side edge 8, the back side edge 8 It is possible to shorten the distance between the center of gravity position (G) and the guide support 1 as compared to the case where the guide post 1 is disposed. For this reason, since the moment applied to the guide support 1 by the elevating table 5 can be reduced, it is possible to effectively prevent the deformation and the like of the guide support 1.

  Further, when the center of gravity (G) of the lift 5 is mounted on the guide support 1 and biased to the one edge side, the lift 5 is inclined toward the side 6 of the accumulated load of dimensional error of each part. If the elevator 5 is adjusted to maintain the horizontal posture in this state, the elevator 5 is always kept in the horizontal posture, and it is possible to reliably prevent the occurrence of rattling when boarding the elevator 5. Become.

Also, as another configuration for achieving the above object,
In addition to the pitching prevention roller 9 for regulating the inclination around the axis parallel to the mounting edge 6 of the elevation stand 5 on the elevation table 5, the antirolling roller for regulating the inclination around the axis parallel to the adjacent edge 7 An evacuation device can be configured in which 10 is disposed corresponding to the side wall surface of each guide post 1.

  In the present invention in which rolling prevention is provided in correspondence with each guide support 1 in addition to the pitching prevention roller 9, the pairing prevention roller 9 and the anti-rolling roller 10 are arranged in pairs corresponding to the pair of guide support 1. On the contrary, it is possible to ensure a uniform pressure contact state with respect to each guide support 1. As a result, even in the case where a large load is mounted on the lift 5, it is possible to prevent an excessive load from being applied to one of the guide columns 1.

Furthermore, as another configuration for achieving the above object,
A gradual fall-off device 14 in which a pinion 13 is connected to the output shaft 12 of the rotational speed reducer 11 is mounted on the elevating table 5 correspondingly to each of the guide columns 1;
A rack groove 15 with which the pinion 13 is meshed is formed on one side wall surface of each of the guide columns 1;
An evacuation device can be configured in which the gradual lowering device 14 is disposed in a posture in which the output shaft 12 is along the adjacent edge 7 of the elevator platform 5.

  In order to control the lowering speed of the lifting platform 5, the lifting platform 14 is equipped with a slow-down device 14 having a pinion 13 engaged with a rack groove 15 formed on one side wall surface of the guide support 1. The slow fall device 14 controls the lowering speed of the elevator 5 by controlling the rotation speed of the pinion 13, and the pinion 13 is connected to the output shaft 12 of the rotation speed reduction device 11.

  The rotational speed reduction device 11 is provided with a speed reduction mechanism such as a reduction gear train and a centrifugal brake, and in order to apply a rotation stopping force to the output shaft 12, it often takes a long structure in the direction of the output shaft 12 Become.

  In the present invention, in which the gradual lowering device 14 is disposed with the output shaft 12 in alignment with the adjacent edge 7, the space on the raising and lowering platform 5 can be reduced because the protrusion dimension of the gradual lowering device 14 to the central portion of the lifting platform 5 can be suppressed. Can be effectively used, and the weight increase of the lift 5 due to providing a dead space on the lift 5 can be prevented.

Also, as another configuration for achieving the above object,
The evacuation opening 3 is provided with a slope member 18 which is placed on the lifting table 5 whose free end is in the standby position and which shifts to a hanging posture as the lifting table 5 descends,
The lift 5 can be configured as an evacuation device in which an inclined surface 20 is formed so as to gradually decrease in height from the start end toward the entry edge 6 of the lift 5.

  While evacuation equipment by wheelchair users is desired as an evacuation apparatus with a large load specification, on the other hand, it is required to improve the strength of the elevator 5 itself to increase the load capacity, and as a result, the floor thickness of the elevator 5 is thickened. You will need to

  When the elevator 5 becomes thicker, the step between it and the lower floor 4 when it lands on the lower floor 4 inevitably becomes large, so a special means for overcoming the step is necessary, and the assistant It will be necessary.

  In the present invention, in the present invention, in which the slope 20 is gradually lowered as getting on the surface of the elevator stand 5 and going to the edge 6, the lower floor 4 and the upper surface of the elevator stand 5 are landed on the lower floor 4. Since the difference in level is absorbed by the inclined surface 20, it can descend from the elevator 5 without the need for a helper.

Furthermore, as another configuration to achieve the above purpose and
A wheel guide groove 17 for guiding the wheel of the wheelchair 16 is formed in the lift 5, and
The free end of the slope member 18 fits in the wheel guide groove 17 of the elevator platform in the standby position,
And, the inclined surface 20 may constitute an evacuation device formed in the wheel guide groove.

  In the present invention, since the step between the lower floor 4 and the wheel guide groove 17 is absorbed by the inclined surface 20 in the state of landing on the lower floor 4, the elevator platform 5 is not required. You can get off.

  In addition, when the elevator platform 5 is in the standby position, the step between the upper floor and the wheel guide groove 17 is absorbed by the slope member 18, so no assistant is required even when moving on the elevator platform 5. .

It is a top view showing the evacuation device of the present invention. It is a figure which shows operation | movement of an evacuation device, and is a side view which shows the state in which a lifting platform is in a standby position. It is a figure which shows operation | movement of an evacuation device, and is a side view which shows the state which the raising / falling stand reached the lower floor floor surface. It is a perspective view which shows a guide support | pillar. It is a figure which shows a guide support | pillar, (a) is a top view, (b) is a front view, (c) is sectional drawing seen from 4 C direction of (b). It is a figure which shows a slope member, (a) is a side view, (b) is a perspective view, (c) is a side view which shows the state in which the raising / lowering platform fell. It is a perspective view which shows a manual release operation part. It is a figure which shows a control panel, (a) is a perspective view, (b) is a figure which shows an initial stage rotation position, (c) is a figure which shows the operation rotation position. It is a figure which shows operation | movement of a manual release operation part, (a) is a figure which shows the state of the stopper apparatus corresponding to the initial stage rotational position of a control panel, (b) is a figure which shows the cancellation | release state of a stopper apparatus. It is a figure which shows the state which used the evacuation device by the wheelchair, (a) is a figure which shows a boarding state, (b) is a figure which shows the state which reached the lower-floor floor surface.

  As shown in FIG. 1 and FIG. 2, the evacuation device is fitted and fixed to the opening formed in the floor base 2 on the upper floor side to form the evacuation opening 3 and on the floor 4 of the lower floor. , And has a lift 5 and a guide post 1 whose upper end is fixed to the evacuation opening 3, and the lift 5 is held in the evacuation opening 3 as shown in FIG. 2. From the standby position, as shown in FIG. 3, it is driven to move up and down between the standby position and the evacuation position which descends along the guide post 1 and lands on the lower floor 4.

  The guide support 1 is a hollow pipe body having appropriate buckling strength, and is formed, for example, by extruding aluminum. The lower end portion of the guide support 1 is fixed to the floor slab of the lower floor and the upper end portion is fixed to the case 21.

  Further, a rack groove 15 is formed on one side wall surface of the guide support 1. As shown in FIG. 2, the rack groove 15 is formed by forming concave portions 15 a at a predetermined pitch in a high strength plate material such as stainless steel, and is formed over substantially the entire length of the guide support 1.

  Furthermore, as shown in FIG. 5, the weight 23 suspended by the wire 22 is accommodated in the hollow portion of the guide support 11. The opposite end of the wire 22 to the fixed end of the weight 23 is connected to the lift 5, and a pulley 24 is disposed between the weight 23 and the fixed end of the lift 5. The weight 23 is set to a weight capable of pulling up the lifting platform 5 in the state where the user does not board, and after reaching the lower floor, when the user gets off the lifting platform 5, the weight 23 is The elevator 5 returns to the standby position by the weight.

  Although FIG. 5B shows the case where the weight 23 is directly connected to the wire 22 hanging down from the pulley 24, a moving pulley can be interposed between the pulley 24 and the weight 23.

  On the other hand, a pillar insertion opening 5 a through which the above-mentioned guide pillar 1 is inserted is opened in the elevator 5. The column insertion opening 5a is formed in each of the adjacent edges 7 adjacent to the riding-in edge 6 which becomes a boarding port when the evacuees ride on the elevator platform 5 in the standby position. The column insertion openings 5a are at positions where the distance from the mounting edge 6 is equal and, as shown in FIG. 1, through the center of gravity (G) of the elevator platform 5, the center of gravity axis position parallel to the mounting edge 6 Is formed at a position deviated toward the side edge (back side edge 8) opposite to the mounting edge 6 by a predetermined distance (.delta.), That is, at an intermediate portion between the back side edge 8 and the center of gravity axis position The two guide support columns 1 are provided upright at opposing positions corresponding to the support column insertion openings 5a.

  As described above, the pinion 13, the pitching prevention roller 9, and the anti-rolling roller 10 are disposed around the column insertion opening 5a in order to raise and lower the lift 5 along the guide column 1 inserted into the column insertion opening 5a. Be done.

  As shown in FIGS. 4 and 5, the pinion 13 is incorporated in the slowdown device 14, is connected to the output shaft 12 of the rotational speed reduction device 11, and meshes with the rack groove 15 of the guide support 1. In the present embodiment, the rotational speed reduction device 11 is a centrifugal brake type, and operates by the rotation of the pinion 13 to limit its rotational speed.

  The gradual lowering device 14 is arranged such that the output shaft 12 is in alignment with the adjacent edge 7 corresponding to each of the guide columns 1, and the two guide columns 1 correspondingly correspond to the rack grooves 15 facing each other. It is set up.

  Since two sets of rotational speed reducers 11 are used in each gradual lowering device 14 with the guide post 1 interposed therebetween in order to ensure the reduction performance, the axial length dimension of the output shaft 12 becomes large. Therefore, by arranging the gradual lowering device 14 in a posture in which the output shaft 12 is along the adjacent edge 7, it is possible to suppress the protrusion dimension of the gradual lowering device 14 to the central portion of the elevating table 5. It can be used effectively.

  Further, in the present embodiment, the pinion 13 and the output shaft 12 of the rotational speed reduction gear 11 are connected only in the rotational direction of the pinion 13 when the elevating table 5 is lowered, and one way is disconnected in the reverse rotational direction. It is connected via the clutch 11a, and the rotational speed reduction control operates only when the elevator 5 is lowered.

  The anti-pitching roller 9 is provided to prevent rotation about an axis parallel to the mounting edge 6 of the elevator platform 5. As described above, since the guide support 1 is disposed at a position biased toward the back side edge 8 with respect to the gravity center position (G) of the lift 5, the contact between the lift 5 and the guide support 1 A moment acts in the direction of pushing up the back side edge 8 indicated by the arrow in FIG. 5C upward, that is, a clockwise moment in FIG. 5C.

  In order to counter this moment, the anti-pitching roller 9 is disposed on the opposite wall surface at different installation heights with the guide post 1 interposed therebetween. In the present embodiment, a pair is provided in which the contact height with the wall surface in the direction of the back side edge 8 is higher than the contact height with respect to the wall surface in the direction of the boarding edge 6. The pair of anti-pitching rollers 9 is brought into pressure contact with the wall surface of the corresponding guide support 1 with respect to the generated moment to prevent the tilt of the lift 5 and the lift 5 is maintained in the horizontal posture in this state. .

  Further, in the present embodiment, in preparation for the case where the moment in the opposite direction is loaded on the lifting and lowering stand 5, a pair of auxiliary pitching preventing rollers 9 'is disposed at a line symmetrical position with respect to the pair of pitching preventing rollers 9 described above. Ru.

  On the other hand, the anti-rolling roller 10 is provided to prevent rolling rotation about an axis parallel to the adjacent edge 7 of the elevator platform 5, and a wall surface parallel to the adjacent edge 7 of the guide support 1, that is, a rack groove 15. Are arranged corresponding to the wall surface on which the is formed and the opposite wall surface.

  Furthermore, on the surface of the lift 5, wheel guide grooves 17 for guiding the wheels of the wheelchair 16 are recessed to enable use by the wheelchair 16. The wheel guide groove 17 is formed over substantially the entire length from the riding edge 6 to the rear edge 8 of the lift 5, and the boarding of the wheelchair 16 on the lift 5 is after the riding on the lift edge 6. The movement is performed in the direction of the side edge 8.

  Further, as shown in FIG. 6, in the wheel guide groove 17, a position separated by a predetermined distance from the riding edge 6 is set as a start end 19, and an inclined surface 20 reaching the back surface of the riding edge 6 is formed. After evacuating to the lower floor, it is possible to prevent a step from occurring when the wheelchair 16 is retreated to get down to the lower floor 4.

  Furthermore, the slope member 18 and the slope control body 25 for controlling the slope member 18 are provided in the evacuation opening 3 in order to absorb the step between the elevator platform 5 in the standby position and the upper floor side 2a. Is attached.

  The slope member 18 has a width direction dimension that can be fitted into the wheel guide groove 17 and is a member having a U-shaped cross-sectional shape in which the guide rising pieces 18a are erected over the entire length on both side edges. Two slope members 18 are fixed to the rotation shaft member 18 b corresponding to the guide grooves 17. The rotary shaft member 18b is disposed along one side edge of the case 21 corresponding to the mounting edge 6 of the lift platform 5, and as shown in FIG. 6A, the lift platform with the free end in the standby position It rotates between the set position fitted to the wheel guide groove 17 of 5, and the hanging attitude | position suspended from the rotating shaft member 18b, as shown in FIG.6 (c).

  As shown in FIG. 6 (a), with the elevator 5 held at the standby position, the step between the floor surface 2a on the upper floor side and the wheel guide groove 17 is the wheel guide groove 17 and the elevator The space between the back surface 5 and the back surface 5, that is, generated when the elevator 5 lands on the floor 4 on the lower floor side, is larger than the step absorbed by the inclined surface 20.

  In consideration of this, as shown in FIG. 6A, the slope member 18 is extended in the direction of the back side edge 8 beyond the start end of the inclined surface 20 in the set position, and the inclination of the inclined surface 20 By setting the angle of inclination to be substantially the same as the angle of inclination, it is possible to smoothly get on and off the elevator platform 5.

  Further, the determination of the extension length of the slope member 18 is performed on the wheelchair 16 as shown in FIG. 10A, except that the inclination angle is substantially the same as that of the inclined surface 20 as described above. It is also possible to condition that interference with the rear wheel does not occur, and when the length of the slope member 18 is determined in this way, the wheelchair 16 can be correctly placed in conjunction with the handrail 26 position described later. Can act as an indirect guide to

  In the above, the slope member 18 is set to have an inclination angle substantially the same as the inclination of the inclined surface 20 at the set position. Absent.

  The slope control body 25 is formed by rotatably connecting the tire member 25b to the tip end of a support rod 25a integrally connected to the rotation shaft member 18b of the slope member 18. The tire member 25b is formed of a synthetic resin hollow body, a rubber tire or the like in order to absorb the collision sound when the tire member 25b collides with the elevator 5 as described later.

  The slope control body 25 is disposed at a position corresponding to the adjacent edge 7 of the lift table 5 so as not to narrow the effective area on the lift table 5. The slope control body 25 and the slope member 18 are as shown in FIG. When the slope member 18 assumes the hanging posture, the tire member 25b is disposed at an angle slightly offset in the direction of the far side 8 from the position immediately below when the slope member 18 assumes the hanging posture.

  Therefore, in the present embodiment, when the elevator 5 descends from the standby position of FIG. 6 (a), the slope control body 25 that has lost support rotates clockwise in FIG. 6 (a), and the state of FIG. Go through to the lower floor 4. From this state, when the evacuation person gets down from the elevator platform 5, the elevator platform 5 ascends to the standby position by the action of the weight 23 described above.

  During the ascent, as shown in FIG. 6C, when the surface of the lift 5 abuts against the tire member 25b of the slope control body 25, the slope control 25 rotates by the force of the lift 5 upward. A counterclockwise rotational moment with the shaft member 18b as the rotation center is generated, and when it further rises, the state shown in FIG. 6A is restored.

  The slope control body 25 is set to a length such that the free end of the slope member 18 does not interfere with the wheel guide groove 17 or the inclined surface 20 when the elevator 5 is lifted from the state shown in FIG.

  Further, as shown in FIG. 1, a handrail 26 is mounted on the elevating table 5. The handrail 26 is formed in a U-shape having a horizontal bar 26a and vertical bars 26b extending in a perpendicular direction from both ends of the horizontal bar 26a. The free end portion is rotatably connected near the rear side edge 8 of the lift plate 5.

  When not in use, the handrail 26 is held in the lying posture along the surface of the lift plate 5, and can be shifted to the standing posture by pulling up the lateral ridge 26a.

  In addition, although the case where the wheel guide groove 17 was provided in the surface of the raising / lowering stand 5 was shown above, it is also possible to form the surface of the raising / lowering stand 5 by a plane.

  Further, the evacuation device is provided with a stopper device 28 for holding the lifting platform 5 at the standby position, and a manual release operation unit for manually releasing the stopper device 28 on the lateral weir 26a of the handrail 26 29 are arranged.

  As shown in FIG. 9, the stopper device 28 is disposed on the elevator 5 side, has a hook portion 30a at its tip, and is disposed on the guide post 1 side with a stopper member 30 rotatable around the rotation shaft 30b. The stopper member 30 is biased by the torsion spring 32 in the locking position with the locked portion 31, that is, in the counterclockwise direction in FIG. Ru.

  Further, the stopper member 30 is provided with a stopper release portion 30d provided with a pedal-like release operation input portion 30c, and the stopper release portion 30c is pushed down against the reaction force of the torsion spring 32 to show the stopper release portion 30d. When it is rotated clockwise at 9, the stopper member 30 rotates in the direction of the locking release position with the locked portion 31.

  Therefore, in the present embodiment, when the lift platform 5 is in the standby position, the stopper member 30 of the stopper device 28 locks to the engaged portion 31 as shown in FIG. .

  When the release operation input portion 30c of the stopper release portion 30d is pushed down from this state, as shown in FIG. 9B, the engagement between the hook portion 30a and the locked portion 31 is released, and the elevating platform 5 is lowered. Start.

  In addition, when the lifting platform 5 moves to the standby position side, first, the hooked portion 30a is shown in FIG. 9B as the locked portion 31 and the inclined portion 30e formed on the upper end of the hook portion 30a interfere with each other. Once the elevator platform 5 reaches the standby position after being rotationally driven in the locking release direction, it returns to the locked state by the return force of the torsion spring 32.

  A manual release operating unit 29 is attached to the handrail 26 so that the stopper device 28 can be operated from the wheelchair 16. As shown in FIG. 7 and the following figures, the manual release operation unit 29 is a control panel 33 in which the rotary body 33b operated by the handle lever 33a is accommodated in the housing 33c, and a cable for transmitting the displacement of the rotary body 33b to the stopper device 28. The control panel 33 is disposed at the central portion of the transverse rod 26a of the handrail 26 so that the left and right hands can be operated.

  The cable device 34 is formed by movably inserting the inner cable 34a into the outer cable 34b, and one end is connected to the operation panel 33 and the other end is connected to each stopper device 28.

  The rotating body 33b is a bowl-shaped body whose central portion is rotatably connected to the central position of the circular housing 33c, and is provided in the housing 33c from a cable insertion hole 33d (see FIG. 9B) opened in the housing 33c. The inner cable 34a of the cable device 34 introduced to the is connected. The rotating body 33b can be rotated between an initial rotation position shown in FIG. 8B and an operation rotation position for pulling the inner cable 34a into the housing 33c as shown in FIG. 8C. .

  On the other hand, the end of the outer cable 34b on the control panel 33 side is in contact with the flat portion forming the cable insertion hole 33d, and the contact portion between the outer cable 34b and the flat portion is an immovable fixed point 35. It becomes.

  As described above, the other end of the inner cable 34a of the cable device 34, one end of which is connected to the operation panel 33, passes through the cable insertion hole 33d opened in the release operation input unit 30c and the support insertion opening of the elevator 5 The outer cable 34b is fixed in the vicinity (fixed point 5c) of 5a, and the outer cable 34b abuts on the release operation input unit 30c.

  As shown in FIG. 9, the outer cable 34b is wired between the fixed point 35 on the control panel 33 side and the contact point to the release operation input unit 30c in a state where an appropriate extra length is secured, and further, In order to regulate the routing path of the outer cable 34b in which the inner cable 34a is fixed at a predetermined position, both ends of the outer cable 34b are in pressure contact with the corresponding parts and are not separated therefrom.

  When the rotating body 33b is in the initial rotation position, the end portion of the outer cable 34b on the stopper device 28 side is as shown in FIG. 9A, regardless of whether the handrail 26 is in the fallen posture or the standing posture shown in FIG. As shown, the release operation input unit 30c is held at a position where it is not operated. When the handle lever 33a is rotationally operated from this state to rotationally drive the rotary body 33b, as shown in FIG. 9B, the inner cable 34a is called into the housing 33c, and as a result, the entry into the housing 33c is immobile The outer cable 34b which is blocked at the point 35 moves downward as guided by the inner cable 34a, and depresses the release operation input unit 30c to operate.

  From the above, in this example, the user of the wheelchair 16 can get on the elevator 5 from the riding edge 6 through the slope member 18 as shown in FIG. Thereafter, when the handrail 26 is raised and the operating lever is further rotated, the stopper device 28 is released and the elevator 5 starts to descend.

  As shown in FIG. 10 (b), when the lower floor 4 is reached, the difference between the lower floor 4 and the elevator 5 is eliminated by the slope 20 only by retracting the wheelchair 16. , It can move to the lower floor 4 and a smooth evacuation becomes possible.

DESCRIPTION OF SYMBOLS 1 guide support 2 upper floor side floor base 3 evacuation opening 4 lower floor 5 elevator platform 6 boarding edge 7 adjacent edge 8 back side edge 9 anti-pitching roller 10 anti-rolling roller 11 rotational speed reduction gear 12 output shaft 13 Pinion 14 Slowing device 15 Rack groove 16 Wheelchair 17 Wheel guide groove 18 Slope member 19 Start end 20 Slope surface
G center of gravity position

Claims (5)

Drive the elevator up and down between the standby position and the lower floor surface held in the evacuation opening established in the upper floor base along the guide post erected from the upper floor to the lower floor It is an evacuation device,
The guide support corresponds to each of the adjacent edges adjacent to the boarding edge which becomes the entrance to the elevator platform, and passes through the center of gravity of the elevator platform and the center of gravity axis position parallel to the boarding edge and the back side edge Evacuation device to be placed in the middle position of.   In addition to the anti-pitching roller for restricting the inclination around an axis parallel to the mounting edge of the elevation stand, the anti-rolling roller for restricting the inclination about an axis parallel to the adjacent edge The evacuation device according to claim 1, wherein the evacuation device is disposed corresponding to the side wall surface. A gradual fall-off device, in which a pinion is connected to an output shaft of a rotational speed reduction gear, is mounted on the elevator platform corresponding to each of the guide columns.
A rack groove in which the pinion is engaged is formed on one side wall surface of each guide post;
The evacuation device according to claim 1 or 2, wherein the gradual lowering device is disposed such that the output shaft is along the adjacent edge of the elevator platform. The evacuation opening is provided with a slope member which is placed on a lifting platform whose free end is in a standby position and which shifts to a hanging posture as the lifting platform is lowered,
4. The evacuation apparatus according to claim 1, 2 or 3, wherein the lifting platform is formed with an inclined surface whose height gradually decreases from the start end toward the mounting edge of the lifting platform. A wheel guide groove for guiding a wheel of a wheelchair is formed in the elevator platform,
The free end of the slope member fits into the wheel guide groove of the elevator platform in the standby position;
The evacuation device according to claim 4, wherein the inclined surface is formed in the wheel guide groove.

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