KR102417933B1 - evacuation device - Google Patents

Abstract

An object of the present invention is to provide an evacuation device with good operability.
Lifting platform 4 driven up and down between the standby position held in the evacuation opening 2 formed in the upper floor 1 and the lower floor surface 3, and the evacuation opening 2 in the locking position ) a rotatably free hook member 6 that is locked by a stopper 5 disposed on the periphery to hold the elevator 4 in a standby position, and a locking-side protrusion 7 in the locked position. The hook member 6 is locked by the hook-side protrusion 8 formed in (6) to regulate the movement of the hook member 6 to the unlocking position. It has a locking member (9) for allowing the lowering of the elevator (4) by moving the member (6) to the unlocking position, and a locking member (10) for rotationally operating the locking member (9).

Description

evacuation device

The present disclosure relates to an evacuation device.

As an evacuation device for moving a lift platform between upper and lower floors, the one described in Japanese Patent No. 5648248 is known.

In this prior art, the elevator is freely movable along the guide member provided between the upper and lower floors, and is held on the upper floor by locking the locking member provided on the guide member, and the lowering operation is performed by engaging the locking member with the elevator. This is done by retracting from the stop position.

However, in the above-mentioned prior art, since it is necessary to move the locking member, which generates a large frictional force due to the load of the elevator platform, to the retracted position during the lowering operation of the elevator platform, there is a problem that a large operation force is required and the operability is deteriorated. .

The present disclosure has been made in order to solve the above drawbacks, and an object of the present disclosure is to provide an evacuation apparatus with good operability.

According to the present disclosure, the object is

a platform for lifting and lowering between the standby position held in the evacuation opening formed on the upper floor and the lower floor;

A rotatable hook member for holding the elevator in a stand-by position by being locked to a stopper disposed on the periphery of the evacuation opening in the stopped position;

In the locking position, the locking-side protrusion is caught by the hook-side protrusion formed on the hook member to regulate the movement of the hook member to the unlocking position. a locking member that moves to an unlocked position to allow lowering of the platform;

This is achieved by providing an evacuation device having a locking operation portion for rotationally operating the locking member.

The hook member holds the elevator in the standby position by regulating movement in the unlocking direction by the locking member, and when the locking member releases the restriction, it moves to the unlocking position by its own weight.

In the present disclosure in which the locking member is not directly operated, the lever ratio at the time of operating the locking member, the contact state of the hook member and the locking part of the locking member, etc. can be appropriately determined, so that the release operation force can be reduced; It becomes possible to improve operability.

In addition, the evacuation device is

The locking member is biased from the unlocked position to the locked position, and

the locking member and the hooking member are held in the unlocking position and the unlocking position by closing the movement path in the locking position direction and the movement path in the locking position direction from each other;

The hook member may be configured to be provided with an interference protrusion for contacting the lockable portion and driving the hook member toward the locking position when the lifting platform is raised.

In this aspect, when the locking member is moved from the standby position to the unlocking position, the lock member is released from restriction by the locking member, and the lock is released by the weight of the elevator platform. The hook member that has moved to the unlocking position stays in that position while movement in the locking position is regulated by the locking member moved to the unlocking position.

On the other hand, the hook member is provided with an interference protrusion, and when the platform rises while the locking state is maintained, the interference projection collides with the lockable part, and the hook member shifts to the locking position. Thereby, the movement path toward the locking position side of the locking member, which has been closed by the locking member, is opened, shifted to the locking position by the biasing force in the locking position direction, and thereafter, the platform is held in the standby position.

With the above configuration, since the hook member moves directly to the locking position so that the lockable portion is covered by the locking position at the time of transition from the unlocking position to the locking position, the locking operation is reliably performed and the operation reliability is improved.

Biasing the hook member and the lock member to the unlocked position and the locked position side, respectively, can be realized by attaching a torsion spring to each,

If the hook member and the lock member are connected by a tension member, it becomes possible to simplify the structure.

Retaining the locking member in the locking position with the hook member locked in the stopper can be realized by providing the locking member with an appropriate stopper member for determining the end of rotation on the locking position side, but the rotation of the locking member If the termination is determined without using the stopper member, the structure is simplified.

These evacuation devices are

The rotational center of the locking member is disposed at a position where a rotational force to the locking position is generated by a load load from the hook-side protrusion to the lock-side protrusion,

The locking member may be configured to be provided with a hook contact portion that abuts against the edge of the hook member on the unlocking position side and regulates rotation beyond the locking position of the locking member.

In this example, when the locking member receives a force in the unlocking position direction from the hook member, a rotational force is generated to rotate beyond the locking position, and the locking member is held in the locking position with the hook contact portion in pressure contact with the hook member.

In this state, when the locking member further receives a force in the unlocking direction from the hook member, rotation of the locking member is regulated, so that an axial force such as a compressive force in the rotational center direction is generated in the locking member, and the lock is locked in the state as it is. The member is retained, and the locked state of the hook member is maintained.

Furthermore, when the evacuation device is configured in which the lock-side protrusion and the hook-side protrusion are formed concentrically with the rotation center of the lock member as the center, the operating force of the lock member toward the unlocking position side can be reduced, thereby improving operability. it becomes possible to do

In addition, as another aspect of the present disclosure, an evacuation device includes:

a wire device having one end connected to the lock member to transmit the operating force of the lock operation unit to the lock member;

It can be configured with a wire guide for guiding the direction of transmission of the operating force to the locking member of the wire device into a plane parallel to the rotational operating surface of the locking member.

In this aspect, one end (actuation-side end) of the wire device is connected to the locking member for performing the unlocking operation of the hook member, and the operating direction of the operating-side end is parallel to the rotational operating surface of the locking member by the wire guide Guided within one side.

As a result, since the operation force applied to the lock operation portion to which the other end (operation-side end) of the wire device is connected is efficiently transmitted, the operation feeling can be improved.

in this case,

A pair of locking members are arranged so that the rotational operation surface is parallel to the left and right side wall surfaces of the guide post for guiding the elevator platform, and the left and right side walls of the guide post are interposed therebetween;

The wire device may constitute an evacuation device connected to an actuating rod connecting between the locking members.

Further, as another form of the present disclosure,

It has a wire device that transmits the operating force of the lock operation unit to the lock member disposed in the vicinity of the guide post,

It is possible to constitute an evacuation device in which a conversion section is mounted between the wire device and the locking member for converting the operating direction of the wire device to the operating direction in the unlocking direction of the locking member.

Although it is possible to arrange the stopping part at an appropriate location as long as it is the periphery of the evacuation opening, it is preferable to provide the guide strut near the evacuation opening from the viewpoint of securing strength. In this case, the hook member and the locking member are the guide struts on the elevator placed in close proximity to

On the other hand, around the guide post, various parts such as the connection part of the bracing device and the guide post, the connection part between the evacuation opening of the guide post, or the leg part of the handrail are narrow when the handrail is freely installed on the elevator. It is dense in places, and it is necessary to arrange the wire device to prevent interference with parts that lead to wire cutting and kink generation.

However, when the bending curvature of a wire device is made small, the friction in the sliding part of an inner wire with an outer cable becomes large, it is necessary to provide a large operating force to an operation part, and it causes the fall of operability.

In this aspect of arranging the conversion section between the wire device and the locking member, the arrangement path of the wire device can be determined so that no interference with other components occurs and no bending section that becomes an excessively small bending curvature occurs. , operability can be improved, and operation reliability can also be increased.

In addition,

A pair of locking members are arranged operating in a plane parallel to the front and rear wall surfaces of the guide posts,

conversion unit,

an actuating rod connecting between the locking members;

An evacuation device having an opening lever connected to the wire device and having an opening lever that is connected to the wire device and rotates in a direction in which the rod stopper moves to the unlocking position side of the locking member during wire tensioning operation can do.

In this aspect, when a tensile operating force is applied to the wire device, the opening lever rotates to translate the actuating rod in a predetermined direction to actuate the locking member.

Furthermore

The locking members are respectively disposed at left and right symmetrical positions of the elevator platform,

When an evacuation device is configured in which a pair of lock operation units are arranged on a handrail installed on the elevator platform, and gear-shaped parts that engage with each other are provided on the lock operation unit, the lock on the opposite side is locked even if the lock operation units on either side of the handrail are operated. Since the operation portions can be operated in synchronization, it becomes possible to precisely synchronize and operate the left and right locking members.

As a result, it is possible to reliably prevent any one of the left and right from being unlocked in advance of the other, and it is possible to increase the operation reliability.

According to this indication, the operability of an evacuation apparatus can be made favorable.

1 : is a figure which shows the evacuation apparatus by this indication.
2 : is a figure which shows the state in which the cover body was opened.
3A is a cross-sectional view of a modified example of the case.
Fig. 3B is an enlarged view of part 3B of Fig. 3A of a modified example of the case.
4 is a plan view of the elevator platform.
FIG. 5 is an enlarged view of a portion 5A of FIG. 4 .
Fig. 6 is a perspective view showing a state in which a wheelchair is mounted on the elevator platform.
Fig. 7 is an enlarged view of the main part of Fig. 1;
8 : is a figure which shows the principal part of the handrail in the propulsion posture.
It is a figure which shows the operation|movement of a handrail, and shows immediately after the shift to a standing posture is started.
It is a figure which shows the operation|movement of a handrail, and shows just before completion|finish of transition operation to a standing posture.
It is a figure which shows the operation|movement of a handrail, and shows a standing posture.
It is a figure which shows the operation|movement of a handrail, and shows the temporary holding posture.
It is a figure which shows the modified example of a handrail, and shows immediately after the transition to a standing posture is started.
It is a figure which shows the modified example of a handrail, and shows the temporary holding posture.
It is a figure which shows the modified example of a handrail, and shows a standing posture.
11 is a perspective view showing a lock operation unit.
Fig. 12A is a front view of the lock operation unit.
12B is a rear view of the lock operation unit.
13 : is a figure which shows the slope body of a setting state.
14 : is a figure which shows the slope body of a suspended state.
Fig. 15A is a side view of the flap in a locked state;
Fig. 15B is a link configuration diagram of the flap in a locked state.
It is a figure which shows the operation|movement of a flap, and shows the landing state.
Fig. 16B is a diagram showing the operation of the flap just before the elevator platform reaches the standby position.
17A is a perspective view showing a modified example of the slope body, and is a projection forming part.
It is a figure which shows the modified example of a slope body, and shows a setting state.
Fig. 18A is a diagram showing the operation of the slope body of Fig. 17 and showing a suspended state.
Fig. 18B is a diagram showing the operation of the slope body of Fig. 17 and showing a state immediately before transition to a setting state.
19 is a perspective view showing a conversion unit.
Fig. 20A is a view showing the operation of the hook member and showing a stopped state;
20B is a view showing the operation of the hook member immediately after the locking state is released.
Fig. 20C is a view showing the operation of the hook member and showing the unlocked state.
20D is a view showing the operation of the hook member, and the lock is released and the elevator platform moves.
Fig. 21 is a perspective view showing another embodiment of the lifting platform holding mechanism.
It is a figure which shows the operation|movement of the hook member of another embodiment, and shows the locked state.
Fig. 22B is a view showing the operation of the hook member according to another embodiment, immediately after the locking state is released.
FIG. 23A is a diagram illustrating the operation of the hook member of FIG. 22, and shows a state in which the hook auxiliary member collides with the stopper by the lifting of the elevator platform.
Fig. 23B is a view showing the operation of the hook member of Fig. 22, and showing a state immediately before the elevator platform is further raised so that the interfering protrusion comes into contact with the stopper.
Fig. 24A is a view showing the operation of the converter, viewed from the direction 24A in Fig. 19 .
Fig. 24B is a cross-sectional view of 24B-24B of Fig. 24A showing the operation of the converter.
Fig. 25A is a diagram showing the operation of the conversion unit and showing a state in which the opening lever is rotationally driven.
Fig. 25B is a diagram illustrating the operation of the conversion unit, and a state in which the operating force to the lock operation unit is released.
26 is a plan view showing another embodiment of the present disclosure, and is a diagram corresponding to FIG. 4 .
Fig. 27 is an enlarged view of a portion 27A of Fig. 26;
Fig. 28A is a view corresponding to Fig. 20 showing the operation of the hook member, and showing a locked state.
Fig. 28B is a view corresponding to Fig. 20 showing the operation of the hook member and showing immediately after the locking state is released.
Fig. 28C is a view corresponding to Fig. 20 showing the operation of the hook member and showing the unlocked state.
Fig. 28D corresponds to Fig. 20 showing the operation of the hook member, and is a view showing a state in which the lock is released and the elevator is moved.
Fig. 29 is a perspective view showing the lifting platform holding mechanism.
Fig. 30A is a view showing an operation state of the locking member and showing a state in which the lock operation unit is not operated.
It is a figure which shows the operation state of the lock member, and shows the state which operated the lock operation part.
Fig. 31 is a perspective view showing the lower end of the handrail.
Fig. 32 is a side view showing the handrail in a standing posture.
It is sectional drawing which shows the operation|movement of a handrail, and is a figure which shows a fall posture.
It is sectional drawing which shows the operation|movement of a handrail, and is a figure which shows the middle of transition from a lying posture to a standing posture.
It is sectional drawing which shows the operation|movement of a handrail, and is a figure which shows a standing posture.
Fig. 34B is a cross-sectional view showing the operation of the handrail, and is a view showing a state in which the lock operation member is operated to the operating position side.
Fig. 35A is a cross-sectional view showing the operation of the handrail, and is a view showing a state in which the lock operation member is rotated to an operating position.
It is sectional drawing which shows the operation|movement of a handrail, and is a figure which shows the state which the handrail rotated to the falling posture side.

As shown in Fig. 1 or less, the evacuation device includes a case 2a that is fitted and fixed to an opening formed in the floor 1 on the upper side to form an evacuation opening 2, and an evacuation opening 2, It has a cover body (21) for closing, a guide post (14) which is installed upright on the bottom surface (3) of the lower floor, and whose upper end is fixed to the opening (2) for evacuation, and a platform (4).

As shown in FIG. 1 , the elevator platform 4 descends from a standby position held in the evacuation opening 2 and the guide post 14 from this standby position and lands on the lower floor surface 3 . Lifting and lowering is driven between the evacuation positions that do.

The guide post 14 is a hollow pipe body having an appropriate buckling strength, and is formed by extrusion molding, for example, aluminum. The lower end of this guide post 14 is fixed to the lower floor slab, and the upper end is fixed to the case 2a.

In addition, a rack groove (14a) is formed in one side wall surface of the guide post (14). As shown in FIG. 1 , the rack groove 14a is formed by forming recesses 14b at a predetermined pitch in a high-strength plate material such as stainless steel, and is formed over approximately the entire length of the guide post 14 .

Furthermore, in this case, as shown in FIGS. 3A and 3B, if the recess 2b is formed at the lower end of the periphery of the case 2a, the lower part when the elevator 4 rises from the retracted position and reaches the standby position. It is possible to prevent the occurrence of a collision sound between the cover and the lower edge of the case (2a).

Further, as shown in Figures 4 and 5, in the hollow portion of the guide post 14, a weight 15 suspended by a wire (not shown) is accommodated, and after the elevator 4 reaches the lower floor, the user When the lifting platform 4 is lowered, the lifting platform 4 returns to the standby position by the weight of the weight 15 .

As shown in FIG. 6 , the platform 4 is formed to have a sufficient width and load-bearing capacity for a user of the wheelchair 23 to ride, and the wheelchair 23 is, in FIGS. 4 and 6 , the left rear edge You can get on and off the wheelchair mounting area 4a in the central part from the rear. An auxiliary space 4b for a guardian to ride is formed in the inclined rear of the wheelchair mounting area 4a.

In addition, in this specification, let the advancing direction (the right side in FIG. 4) of the wheelchair 23 be "front", let the riding side be "rear", and let the up-down direction in the figure be "side".

As shown in Figs. 4 and 5, at each side of the lifting platform 4, a post insertion opening 4c through which the guide post 14 is inserted is formed, and the post insertion opening 4c is formed. Before and after being sandwiched, a buckling device 24 for lowering the descending speed of the lifting platform 4 is mounted. A pinion 24b engaged with the concave portion 14b of the guide post 14 is fixed to the rotation shaft 24a of the arming device 24, and the number of rotations of the pinion 24b is set to the arming device 24. The lowering speed of the elevator platform 4 is reduced by decelerating it.

Moreover, the roller 4d which contacts the front-back direction wall surface of the guide post 14, and the outer side wall surface is arrange|positioned on the hoisting table 4, and shaking|fluctuation at the time of raising/lowering is regulated.

Furthermore, the handrail 25 is arrange|positioned at the front edge part of the hoisting table 4 . The handrail 25 is formed by bending a pipe body, and has a cross bar 25a and a vertical bar 25b extending in a right angle direction from both ends of the cross bar 25a, and is formed in a U-shape. The handrail 25 is attached to the elevator platform 4 by rotatably connecting the free end of each vertical rod 25b to the handrail bracket 26 fixed to the elevator platform 4 .

The handrail 25 is, as shown in FIG. 1 , between the protruding posture along the surface of the elevator 4 and the standing posture in which the cross bar 25a is pulled upward as shown in FIG. 2 . can move rotationally. The handrail 25 is biased toward the standing posture, and by closing the cover body 21 , the fall posture is maintained, and automatically shifts to the standing posture according to the opening operation of the cover body 21 .

The detail of the handrail 25 is shown to FIG. 7, 8. As shown in Fig. 8, each longitudinal pole 25b of the handrail 25 is connected to the handrail bracket 26 at a position slightly upward from the lower end, so as to function the lower end as a locking operation piece 25c, and a torsion spring ( 31a), a biasing force is applied to the standing posture side, that is, in the clockwise direction in Fig. 8 .

In the handrail bracket 26, as shown in FIG. 8, a long hole-shaped moving passage 26a connecting between the locking position, unlocking position, and temporary holding position, which will be described later, is formed, and the handrail brackets on both sides ( 26) The both ends of the bar-shaped handrail locking body 28 spanned therebetween are inserted into the moving passage 26a.

The locking position is provided at a position where the handrail locking body 28 blocks the movement path of the locking operation piece 25c to the falling posture side when the handrail 25 is in the standing posture, as shown in Fig. 9C, , the unlocking position at which the handrail locking body 28 is located in Fig. 9b is provided at a position where the handrail locking body 28 does not interfere with the movement trajectory of the locking operation piece 25c.

In addition, in Fig. 9D, the temporary holding position at which the handrail locking body 28 is located is extended from the unlocking position to the rear, and a non-interfering path 26b that does not interfere with the movement trajectory of the locking operation piece 25c. is installed at a position where the end of the locking operation piece 25c re-enters the interference region with the movement trajectory. 25) is formed by extending in the direction of the center of rotation.

Further, in order to determine the position of the handrail locking body 28 within the moving passage 26a, the handrail locking body 28 has a first tension spring having one end fixed to the rotational center C33 of the handrail 25 . (29) and a second tension spring (30) having one end fixed to the front end of the handrail bracket (26) are connected.

Accordingly, in this example, when the cover body 21 is opened, the handrail 25 moves from the falling posture shown in Fig. 8 to the standing posture side by the restoring force of the torsion spring 31a. With the transition to the standing posture, first, as shown in Fig. 9A, the locking operation piece 25c interferes with the handrail locking body 28 held in the locked position, and as it moves further toward the standing posture, As shown in Fig. 9B, the handrail locking body 28 is pushed toward the unlocked position.

Thereafter, when the handrail 25 further moves to the standing posture side, the handrail locking body 28 returns to the locked position as shown in FIG. 9C by the restoring force of the first and second tension springs 29 and 30. .

When the handrail 25 is in the standing posture, the handrail locking body 28 in the locked position prevents the movement of the locking operation piece 25c in the lowering position direction to the wall surface of the moving passage, as shown in Fig. 9C. In order to regulate by this, the handrail 25 does not fall down even if the force of the fall direction is applied to the handrail 25.

From this state, as shown in FIG. 9D , when the handrail lock 28 is moved beyond the unlocked position to the temporary holding position, the handrail lock 28 is temporarily held by the first tension spring 29 . While being pressed against the end wall of the holding position, movement in the locking position direction by the biasing force of the second tension spring 30 is blocked by the stopper wall 26d formed by the wall surface of the concave portion 26c. As a result, there is no deviation from the temporary holding position.

Further, as shown in Figs. 4 and 5, since the central portion of the handrail locking body 28 is open to the rear of the elevator platform 4, only pushing the central portion of the handrail locking body 28 toward the rear Also, the handrail locking body 28 moves to the end of the non-interfering path 26b, and then, when the pushing operation is finished, it can be moved to the temporary holding position by the restoring force of the first tension spring 29. have.

Further, when the handrail 25 is rolled over from the state of FIG. 9D, that is, the handrail 25 is in the standing position and the handrail lock 28 is in the temporary holding position, the handrail locking body 28 is It is pushed out from the temporary holding position to the non-interfering path 26b by the locking operation piece 25c, and then returned to the locked position by the restoring force of the second tension spring 30.

Therefore, in this example, after use of the evacuation device, only moving the handrail locking body 28 to the temporary holding position in the state in which the elevator platform 4 returns to the standby position, and then closing the cover body 21 is It is also possible to move the handrail 25 to the dobok position.

In this example, one end of the torsion spring 31a penetrates the mounting piece 26e to the elevator 4 of the handrail bracket 26 as shown in Fig. 8 and is inserted into the elevator 4, but in Fig. 10a, As shown in 10b, 10c, it is also possible to lock the rear bent piece 26f of the handrail bracket 26.

In addition, in each subsequent embodiment, the component substantially the same as that of the above-mentioned embodiment is given the same code|symbol in the drawing, and description is abbreviate|omitted.

A lock operation unit 10 for operating a lock member 9 to be described later is disposed on the handrail 25 described above. The lock operation unit 10 is installed in the center of the crosspiece 25a of the handrail 25, and can be operated by any arm that is not inconvenient of the person to be seated in the wheelchair 23, or by the guardian in any auxiliary space 4b. A pair is installed in a symmetrical position with respect to the central position of the crossbar 25a so that it can be operated over the shoulder of the person to be protected even if it is overturned.

The pair of locking operation units 10 are provided with gear-shaped portions 20 that mesh with each other so that an inner wire 15b, which will be described later, can be operated in synchronization with any one of these lock operation units 10 .

In addition, each lock operation unit 10 can be operated by the protector by placing his or her arm on the locking operation unit 10 and applying a weight, or by pushing the protector over the shoulder of the protector. , as shown in Figs. 6 and 11 , it is shaped like a lever, and it is considered that the locking member 9 can be unlocked by pushing it down.

The operation of the locking member 9 by these locking operation parts 10 is performed using the wire device 15 in which the inner wire 15b is freely inserted into the outer cable 15a, and Figs. 11, 12A, and 12B. As shown in , the inner wire 15b is connected to each lock operation unit 10 that can be rotated around the rotation center C10.

In order to use the wire device 15 as a full specification, the inner wire 15b is inserted through the lock operation part 10 on the opposite side to the lock operation part 10 to be connected. After the wire device 15 connected to the lock operation unit 10 is drawn into the inner space of the handrail 25 from the wire introduction opening 25d formed in the pipe-shaped handrail 25, as shown in FIG. , as shown in Fig. 5, is again drawn out of the handrail 25 from the wire lead-out opening 25e, and arranged so as to follow the stringer 25b of the handrail 25 to an appropriate height on the surface of the lift 4 It is connected to the conversion unit 16 to be described later.

Further, at the rear end of the wheelchair loading area 4a of the elevator 4, a flap 31 is freely rotatably connected in the vertical direction around the rotation shaft C31, and further, the elevator 4 is connected to the lower floor surface 3 ), an inclined surface 32 for absorbing the step with the lower floor surface 3 in the state of landing is formed.

As will be described later, the flap 31 is unlocked upon landing on the lower floor surface 3 to allow downward rotation, and after landing on the lower floor surface 3, the wheelchair 23 ) is retracted, the flap 31 is rotated to be pressed down, and the free end is mounted on the inclined surface 32 , and can proceed to the lower floor surface 3 as it is.

In addition, in order to facilitate mounting of the wheelchair 23 in the standby position on the upper floor, a slope body 33 is connected to the evacuation opening 2 .

As shown in FIG. 6 , the slope body 33 is a plate body having a width dimension enough to allow the wheelchair 23 to pass, and as shown in FIG. 13 , the free end is on the platform 4 . It rotates around the rotation center C33 between the setting position and the hanging posture of the state suspended from the opening 2 for evacuation, as shown in FIG. 14.

A setting roller 34 and a support roller 35 are connected to the free end of the slope body 33 . As shown in FIG. 13 , in the setting position, the support roller 35 rides on the inclined surface 34 and bears the load of the wheelchair 23 passing on the slope body 33 .

Further, as shown in Fig. 13, the flap 31 described above is mounted on the free end of the slope body 33 when the elevator platform 4 is in the standby position, and in this state, the upper floor side A slope body 33 is spanned between the floor surface 1 and the surface of the elevator platform 4 to eliminate the step difference between the upper floor surface 1 and the surface of the elevator platform 4 .

When the elevator 4 descends in this state, as shown in FIG. 14 , the slope body 33, which is not supported by the inclined surface 32, rotates downward by its own weight and shifts to the hanging posture.

The setting roller 34 is positioned on the slope body 33 in the setting position direction, that is, when the slope body 33 is in the hanging posture and in contact with the upper surface of the inner end of the auxiliary space 4b of the elevated platform 4 , that is, It is arranged to generate a counterclockwise rotational operation force in FIG. 14 .

Therefore, in this example, when the platform 4 moves to the standby position again after descending, first, the setting roller 34 contacts the upper surface of the inner end of the auxiliary space 4b of the platform 4, and the slope body 33 As it rises with the platform 4, it returns to the setting position, and returns to the initial state shown in FIG.

Further, a damper 36 is attached between the evacuation opening 2 and the back surface of the slope body 33 in order to absorb the impact when the elevator platform 4 and the setting roller 34 collide with each other.

As described above, the flap 31 is freely rotatably connected to the rear end of the wheelchair mounting area 4a of the elevator 4, so that the standing posture shown in FIG. 14 and the free end are inclined surfaces 32 ) and rotates between the propulsion postures, and is biased toward the standing posture side by the torsion spring 31a wound around the rotating shaft C31. The angle in the standing posture of the flaps 31 is determined to such an extent that it functions as a wheel stopper of the wheelchair 23 on the platform 4 in consideration of the longitudinal dimension of the flaps 31 in the front-rear direction.

The flap 31 is controlled to maintain the standing posture by the flap locking unit 37, and is locked except when the platform 4 is raised and lowered, that is, in the standby position and when landing on the lower floor surface 3, The standing posture is held, and the lock is released when landing at the lifting end position of the platform 4, that is, the standby position and the lower floor surface 3, and movement to the lowering posture side is allowed.

As a result, during the descent of the platform 4, the standing posture of the flaps 31 is maintained to prevent the wheelchair 23 from falling from the platform 4, and the lifting terminal position of the platform 4, that is, waiting At the time of landing on the position and the lower floor surface 3, the movement to the loincloth position is allowed, and passage of the wheelchair 23 is not obstructed.

As shown in FIGS. 15A and 15B , the flap locking part 37 includes a locking control body 38 rotatably connected to the elevator 4 , a free end of the flap 31 , and a locking control body 38 . ) with flap locking bodies 39 rotatably connected to each other, each of which is formed with locking stoppers 38a and 39a which engage each other in the locked state.

The locking control body 38 is freely rotatable about a center of rotation C38 between the locked position and the unlocked position, and the flap locking part 37 is provided with the flap locking body 39 in the locking position. The locking state is obtained by moving the locking stopper 39a to the locking stopper 38a of the control body 38 to the locking position.

Further, a torsion spring 40 is wound mounted on the rotation shaft C39M connecting the lock control body 38 and the flap lock body 39, and as a result, the rotation center C39 with respect to the flap 31 is rotated around the rotation shaft C39M. The flap lock body 39 to which rotation is freely connected is biased toward the locking position by a biasing force by a torsion spring 31a, and the lock control body 38 is mounted between the flap lock body 39 and the flap lock body 39. It is biased toward the locked position by the biasing force of the torsion spring 40 .

As shown in Fig. 15A, the connecting position of the flap locking body 39 and the locking control body 38, the connecting position of the locking control body 38 to the elevator 4, and the locking stoppers 38a in the locked state , 39a) is the intersection between the flap locking body 39 and the locking control body 38 when a movement operating force of the flap 31 in the falling direction is applied to the connection point with the flap locking body 39 It is set so that it becomes a relationship which regulates the change of angle (theta) by the locking of the lock stoppers 38a, 39a.

That is, in FIG. 15B , when a rotational operating force in the falling direction is applied to the flap 31 , the force F acts on the connection point C39 of the flap locking body 39 with the flap 31 , so that the locking control body At (38), a counterclockwise rotational force is generated. The locking positions of the locking stoppers 38a and 39a are determined by the intersection angle θ of the acute angle side of the locking control body 38 and the flap locking body 39 by the counterclockwise rotation of the locking control body 38 . is set at a position for regulating the reduction of , and as a result, the locking control body 38 and the flap locking body 39 behave as a substantially integral body with respect to the load in the fall direction of the flap 31 .

By integrating the locking control body 38 and the flap locking body 39, the flap 31, the locking control body 38 and the flap locking body 39 integrally, and the hoisting platform 4 are linked in three sections. Since the degree of freedom of movement is lost, the flap 31 can maintain a standing posture.

Further, the lock control body 38 extends downward from the connection point C38 to the elevator platform 4, and when the elevator platform 4 lands on the lower floor surface 3, the lock control body 38 is shown in Fig. 15A. A detection protrusion 38b that rotates in a clockwise direction (in the unlocking direction) is provided.

Accordingly, in this example, when the elevator platform 4 descends and lands on the lower floor surface 3, the index finger protrusion 38b is pressed against the lower floor surface 3 and rotates clockwise in Fig. 15A, that is, in the unlocking position direction. do. When the locking control body 38 rotates to the unlocked position, as shown in Fig. 16A, the lock stopper 39a of the flap locking body 39 is unlocked, and the locking control body 38 and the flap lock are released. The restraint of the connection point C39M of the sieve 39 is released so that the flap lock body 39 can be rotated, and the flap 31 can move in the fall direction.

When the wheelchair 23 moves in this state, the flap 31 is pushed in by the wheel in the direction of the arrow in Fig. 16A, and the free end gets on the inclined surface 32, and the wheelchair 23 gets off. it becomes possible

On the other hand, when the platform 4 rises and reaches the vicinity of the standby position, the slope body 33 shifts from the hanging posture to the setting position as described above.

As shown in FIG. 13 , at the free end of the slope body 33 , an operation projection 41 for moving the flap lock body 39 in the unlocking direction with the lock control body 38 when moving to the setting position. is installed In this example, the operation protrusion 41 is formed in a protrusion shape that presses the arc-shaped pressurized valve 39b formed in the flap locking body 39 .

As shown in Fig. 16B, in accordance with the approach of the elevator platform 4 to the standby position, the operating projection 41 approaches the pressure target member 39b of the flap lock body 39, and eventually the pressure target member 39b. The silver is pushed forward by the manipulation projection 41 .

The locking stopper 39a of the flap locking body 39 and the locking stopper 38a of the locking control body 38 are unlocked, and further locked The control body 38 is driven in the unlocked position direction and the flap 31 is driven in the retracted position direction.

As for the pressure-beared valve 39b of the flap lock body 39, after returning to the setting position of the slope body 33, the free end of the flap 31 rides on the slope body 33, and in this state, the flap lock body The rotational drive to 39 is set to stop, and as described above, in a state in which the platform 4 is returned to the standby position, the wheelchair 23 passes through the slope body 33 and the flap 31 to the upper floor. You can get on and off smoothly from the bottom (1) on the side.

A modified example of the slope body 33 is shown to FIGS. 17A, 17B, 18A, and 18B. In this modified example, the slope body 33 consists of the slope body part 47 which connected the setting roller 34 to the front end, and the protrusion part forming part 48 fixed to the front end of the slope body part 47. . The protrusion forming part 48 is formed by freely connecting the roller-shaped manipulation protrusion 41 to the front end of the housing 48a to which the support roller 35 is connected, as shown in FIG. 17A . Both ends of the manipulation protrusion 41 are inserted through a long hole 48b formed in the housing 48a and are prevented from being pulled out by a nut or the like, and further biased forward by a torsion spring 48c.

Accordingly, in the present modification, when the lifting platform 4 is in the standby position, the roller-shaped operating projection 41 is in contact with the pressure-beared valve 39b of the flap locking body 39 as in the above-described embodiment. .

Further, when the platform 4 is raised from the hanging posture shown in FIG. 18A , the relative positions of the platform 4 and the slope body 33 deviate from the set value due to the accumulation of dimensional errors, and from the operation projection 41 The length ( moment arm) may become short, and in this case, since sufficient rotational operation force cannot be provided to the flap lock body 39, there exists a possibility that a smooth operation|movement may be impaired.

However, as in the present modified example, if the operation projection 41 is allowed to move freely within the long hole 48b, even in the case as described above, the operation projection portion 41 moves backward along the long hole 48b, thereby being pressed. Since the contact angle to the pressure valve 39b is changed, the moment arm becomes large, smooth operation is ensured.

The platform 4 configured as described above is held in the standby position using the platform holding mechanism 42 .

As shown in Fig. 19, the elevator holding mechanism 42 includes a stopper 5 formed around the standby position, and a hook member 6 that is caught/unlocked by the stopper 5, and , a locking member (9) that controls the hooking/unlocking state of the hook member (6).

In this example, the stopping part 5 is formed by a U-shaped bolt, and a total of four are fixed to the front and rear wall surfaces of a pair and two guide posts 14 (refer to FIG. 4 ) arranged in left-right symmetrical positions, respectively. . The hook member (6) and the lock member (9) are disposed on the hoisting table (4) corresponding to each of the locking parts (5), and are 2 pairs for each guide post (14), 4 pairs in total. The hook member 6 and the lock member 9 operate in an operating surface parallel to the front and rear wall surfaces of the guide post 14 .

The hook member 6 is freely rotatable between the locking position shown in FIG. 20A and the unlocking position shown in FIG. 20C around the rotation center C6, and is locked at the upper end in the locking position. A locking hook portion 6a that is locked to the stopper 5 is provided, and an interference projection 11 is provided at an opposing position of the locking hook portion 6a.

As shown in Fig. 20D, the interference protrusion 11 has a relative movement path of the latched portion 5 when the hook member 6 is in the unlocking position, that is, the lifting platform 4 moves when lifting or lowering. It is disposed on the relative movement path of the stopping part (5).

Therefore, in this example, when the platform 4 is raised from the state of FIG. 20D , first, the stopper 5 collides with the interference projection 11 of the hook member 6 , and the hook member 6 . is driven rotationally to the locked position. By rotation of the hook member 6 to the locking position, the hook portion is positioned above the lockable portion 5, as shown in FIG. 20A, and is locked by the lockable portion 5.

Further, a hook-side protrusion 8 is provided to protrude from an edge on the unlocking position side of the hook member 6 . The hook-side protrusion 8 and the locking face of the lock-side protrusion 7 to be described later are formed by an arcuate face centered on the rotational center C9 of the locking member 9 .

In the locked state with the stopped part 5, a rotational force in the lock release direction is generated in the hook member 6 due to the weight of the lifting platform 4, and in order to resist this rotational force and maintain the locked state, A locking member 9 is arranged.

The locking member 9 is disposed adjacent the unlocking side edge of the hook member 6, is free to rotate between the locked position of Fig. 20A and the unlocked position of Fig. 20C, and in the locked position the hook member ( 6) The locking-side protrusion 7 protruded from the side edge is engaged with the hook-side protrusion 8 of the hook member 6 . This locking member 9 and the hook member 6 are connected by a tension spring 12 as a tension member, and the tension spring 12 is connected to the locking member 9 when the hook member 6 is in the locked position. is biased toward the lock position.

When a rotational force in the unlocking position direction (clockwise in Fig. 20A) is generated in the hook member 6 while the locking-side protrusion 7 is locked to the hook-side protrusion 8, the locking member 9 is A compressive force directed toward the rotational center C9 is generated, and the hook contact portion 13 formed on the edge of the hook member 6 side comes into contact with the hook member 6 .

The position of the contact portion of the hook contact portion 13 to the hook member 6 is the area to which the lock member 9 approaches when the hook member 6 moves to the unlocked position, i.e., in this example, the lock member 9 is set above the rotation center (C9) of

Therefore, in this example, even if a rotational force in the unlocking position direction is generated in the hook member 6 by the load of the lifting platform 4, the pressing force of the lock-side protrusion 7 and the corresponding edge of the hook member 6 This only increases, the hook member 6 does not rotate, and the locked state, that is, the holding state of the elevator platform 4 at the standby position is maintained.

From this state, when the locking member 9 is rotated to the unlocking position, the lock-side protrusion 7 moves on the arc surface of the hook-side protrusion 8, and the lock with the hook-side protrusion 8 is released, The platform 4 starts descending. As shown in Figs. 20B and 20C, the lock of the hook member 6 with the stopable portion 5 is released, and further, the hook member 6 is held in the unlocked position while the lock member 9 is held in the unlocked position. ) is further pulled toward the unlocking position side by the tension spring 12 , so that the hook-side protrusion 8 of the hook member 6 is locked to the end 9a of the lock member 9 .

This state is the unlocked state, since the path of movement of the locking member 9 to the locked position side is obstructed by the hook member 6 once the hook member 6 is latched to the end 9a, the unlocked state is held

As described above, thereafter, when the lifting platform 4 is raised and the hook member 6 is locked to the stopper 5, the locking member 9 is moved to the locked position by the tension spring 12 and , then the lock state is held.

21, 22A, 22B, 23A, and 23B show modified examples of the platform holding mechanism 42 . In addition, in the figure, the same code|symbol is attached|subjected to the component substantially similar to embodiment mentioned above with reference to FIGS. 21, 22A, 22B, 23A, 23B, and description is abbreviate|omitted.

In this modified example, the rack groove 14a is formed in the front and rear wall surfaces of the guide post 14, and the pinion ( 24b) is engaged. In this way, by arranging the rack groove 14a on the front and rear wall surfaces of the guide post 14, that is, on the short side, the short side has higher rigidity than the long side and the amount of deflection is small, so the engagement accuracy with the pinion 24b. is increased, so that smooth operation is possible, and the overall strength can be increased.

In addition, in Fig. 21, the wires 22a and 22b for suspending the weight 22 represent pulleys.

In addition, the elevator holding mechanism 42 operates in a plane parallel to the wall surface adjacent to the wall surface in which the rack groove 14a of the guide post 14 is formed to engage/unlock the stopper part 5 . formed possible.

As shown in Figs. 22A and 22B, the elevator holding mechanism 42 in this modified example includes a hook auxiliary member ( 46) is installed. The hook member 6 and the lock member 9 are provided with a hook-side protrusion 8 and a lock-side protrusion 7, similarly to the above-described embodiment, so as to be freely rotatable around the center of rotation C6, C9. 4), and operates in the same manner as in the above-described embodiment, and the locking members 9 are connected to each other by the actuating rod 17 .

The hook auxiliary member 46 is free to rotate relative to the hook member 6 on the same axis as the hook member 6, and has a hook-shaped contact protrusion 46a at the rear end that can be contacted with the stopper 5. ) is provided, and an operation wall 46b is provided at the front end, and a long hole 46c for avoidance is formed in the middle portion.

The long hole for avoidance 46c is formed in an arc shape centered on the rotational center C6 of the hook member 6, and the rotational shaft forming the rotational center C9 of the locking member 9 has a curvature through which it can be inserted. formed with

Further, the actuating wall 46b is positioned above the actuating protrusion 9b protruding from the locking member 9 and formed at a position capable of contacting the actuating protrusion 9b.

As shown in Fig. 22A, when the hook member 6 is in the locked state, the contact protrusion 46a of the hook auxiliary member 46 is located slightly above the stopped portion 5. As shown in Figs. When the lock of the hook member 6 to the stopper 5 is released and the elevator 4 starts to descend, the contact protrusion 46a of the hook auxiliary member 46 to the stoppage 5 is in contact, and as shown in FIG. 22B , the hook auxiliary member 46 rotates clockwise so that the rotation shaft C9 of the lock member 9 moves relative to the inside of the avoidance long hole 46c.

Since the actuating wall 46b presses the actuating projection 9b of the locking member 9 in accordance with the rotation of the hook auxiliary member 46, the locking member 9 is rotationally driven to the end-of-stroke position on the unlocking side. do.

In addition, a counterclockwise biasing force is applied to the hook member 6 and the hook auxiliary member 46 by a torsion spring (not shown), and the lock by the hook member 6 is released to release the lifter 4 . When is descending, it returns to the initial posture of FIG. 22A.

On the other hand, when the lifting platform 4 is raised, as shown in FIG. 23A , first, the contact protrusion 46a of the hook auxiliary member 46 comes into contact with the stopper 5 and rotates clockwise. With the rotation of the hook auxiliary member 46, the locking member 9 locks, as shown in Fig. 23B, the actuating protrusion 9b is pressed downward by the actuating wall 46b of the hook auxiliary member 46, as shown in Fig. 23B. Rotating to the release position side, the interference projection 11 of the hook member 6 comes into contact with the stopping portion 5, and then, the hook member 6 is hooked by the force applied to the interference projection 11 move to the stop position.

As described above, in the present modified example, when the lifting platform 4 rises and moves to the standby position, the hook member 6 and the stopper 5 do not collide, so that the hook member 6 is damaged. can be reliably prevented from occurring.

The operation of the locking member 9 is effected by the converting portion 16 connected to the locking operation portion 10 disposed on the handrail 25 as described above.

As shown in FIG. 19 , the conversion unit 16 connects between a pair of opposing locking members 9 , and is an actuating rod disposed along the wall surface forming the rack groove 14a of the guide post 14 . (17) and an opening lever (19). At the central portion of the actuating rod 17 in the longitudinal direction, the actuating rod 17 is formed in a cylindrical shape through which the actuating rod 17 can be freely inserted, and collars 43 having flanges 43a formed at both ends are mounted.

The release lever 19 has a mounting piece 19a and a lifting piece 19b formed by bending a plate material into an L-shape, as shown in FIGS. 19 and 25 , and the elevator platform 4 from the mounting piece 19a ) is rotatably connected to the lever bracket 44 fixed on it.

This release lever 19 is arranged in a posture in which the lifting piece 19b is perpendicular to the actuating rod 17, and the lifting piece 19b has approximately the outer periphery of the collar 43, as shown in Fig. 24B. A rod locking portion 18 having a long hole shape having an arc-shaped locking end 18a in contact over half is formed. The opposite end of the rod stopper 18 to the stopper end 18a is formed with a downward opening 18b for providing an entrance for insertion of the collar 43 when mounted on the collar 43 .

As shown in Fig. 24A, the rotation center C19 of the opening lever 19 is arranged slightly near the center of the platform 4 from the actuating rod 17, and a wire device on the opposite side with the rotation center therebetween. The inner wire 15b of (15) is connected.

The wire device 15 is arranged along the surface of the platform 4 and at an appropriate height on the platform 4 , parallel to the rungs 25b of the handrail 25 , ie the actuating rod 17 , the handrail 25 . ), the inner wire 15b is pulled in the direction of the lock operation unit 10, and as shown in FIG. 25A , the opening lever 19 rotates around the rotation shaft C19. With the rotation of the opening lever 19, the locking end 18a of the rod stopper 18 moves forward, and is pressed against the locking end 18a, so that the collar 43, and the collar 43 The actuating rod 17 inserted into the hoistway moves in the direction of the center of the platform 4 by a predetermined distance δ from the initial position.

The travel distance δ corresponds to the actuation stroke of the locking member 9 from the locking position to the unlocking position, as a result of which the locking member 9 moves to the unlocking position, and The locking state to the locking part 5 is released, and the lowering of the lifting platform 4 is started.

In addition, since the flange 43a of the collar 43 is biased toward the initial position by the compression spring 45, when the operation force to the lock operation portion 10 is released after the release operation on the lock member 9, the compression spring ( 45), an operating force in the direction of the initial position is generated in the collar 43 by the restoring force.

The straight portion 18c (refer to FIG. 24B ) connected to the locking end 18a of the rod locking part 18 is formed in a slightly inclined shape in consideration of the vertical direction component during the operation of the locking member 9 . As much as possible, since the lever bracket 44 is inclinedly installed, the collar 43 passes the straight portion 18c of the rod stopper 18 to return to the initial position, and thus the opening lever 19 is moved to the initial position. returns to (see Fig. 25b). By the return of the opening lever 19 to the initial position, the inner wire 15b of the wire device 15 is also driven to the initial state side, and the lock operation unit 10 also returns to the initial state.

Thereafter, when the locking operation to the stopable portion 5 is generated by the hook member 6, as described above, the locking member 9 moves to the locking position side, and accordingly, the actuating rod 17 moves. and the conversion unit 16 returns to the initial state shown in FIG. 19 .

Another embodiment of the present disclosure is shown below in FIG. 26 . In this example, the rack groove 14a is formed on the rear wall surface of the guide post 14 so that a pinion (not shown) of a bracing device (not shown) is engaged, and further, on the left and right side wall surfaces of the guide post 14, a hook member (6), and a pair of lockable portions 5 constituting the platform holding mechanism 42 in cooperation with the locking member 9 are fixed at the opposing positions.

The hook member (6) and the lock member (9) are disposed on the hoisting table (4) in correspondence with each of the locking parts (5), and have a surface parallel to the left and right side wall surfaces of the guide post (14), respectively. It rotates as a working surface.

The hook member 6 is freely rotatable around a rotation center C6 between the locking position shown in FIG. 28A and the unlocking position shown in FIG. A locking hook portion 6a to be locked on the stopper 5 is provided, respectively, and an interference protrusion 11 is provided at a position opposite to the locking hook portion 6a.

In this example, when the platform 4 is raised from the state of Fig. 28D, first, the interference projection 11 of the hook member 6 collides with the stopper 5, and then the hook member 6 ) is rotationally driven to the stopping position, and as shown in FIG. 28A , it is locked by the stopping part 5 .

The locking member 9 is disposed adjacent to the hook member 6 and is free to rotate about a center of rotation C9 in the same plane as the working surface of the hook member 6, and the hook member 6 is in the locked position. When present, the hook-side protrusion 8 of the hook member 6 is engaged with the lock-side protrusion 7 of the locking member 9 .

Further, when the hook member 6 is in the locking position, a rotational force in the lock release direction is generated in the hook member 6 due to the weight of the lifting platform 4, whereas the locking member 9 is a hook contact portion. The counterclockwise rotation of Fig. 28A is regulated by the contact of 13 against the hook-side projection 8 of the hook member 6, and the lock-side projection 7 is pressed against the hook-side projection 8 and rotates in a clockwise direction. It stays in the position of Fig. 28A because the rotation is also regulated, and as a result, the locking member 9 is held in the locked position.

From this state, when the locking member 9 is rotated clockwise in Fig. 28A, that is, toward the unlocking position side, the hook member 6 does not receive support by the lock-side protrusion 7, as shown in Fig. 28B. , rotates in the direction of the lock release position to release the lock with the stop portion 5, and the elevator platform 4 starts descending.

In order to smoothly perform the unlocking operation of the hook member 6 by the locking member 9, the abutting surface of the locking-side protrusion 7 and the hook-side protrusion 8 is the rotation center of the locking member 9 ( It is formed by an arc surface centered on C9).

Furthermore, since the hook member 6 and the lock member 9 are connected by the tension spring 12, the hook member 6 moves to the unlock position according to the rotation operation of the lock member 9 to the unlock position. , and as shown in FIG. 28C , the hook-side protrusion 8 is stopped by the end 9a of the locking member 9 .

This state is the unlocked state, since the path of movement of the locking member 9 to the locked position side is obstructed by the hook member 6 once the hook member 6 is latched to the end 9a, the unlocked state is held

In order to operate the locking member 9, a pair of locking members 9 corresponding to both side walls of each of the guide posts 14 are connected by an actuating rod 17, as shown in FIG. In addition, the other end of the inner wire 15b of the wire device 15 having one end connected to the lock operation unit 10 is connected to the central position of the operation rod 17 (see FIGS. 30A and 30B ).

so that the operation direction of the inner wire 15b, precisely the direction of operation force applied to the operation rod 17 by the inner wire 15b, is located in a plane parallel to the operation surfaces of the hook member 6 and the lock member 9 , a wire guide 49 is installed on the lift 4 .

Further, a compression spring 50 is mounted between the outer cable 15a of the wire device 15 fixed to the wire guide 49 and the inner wire 15b connected to the operation rod 17, and the inner wire A biasing force drawn out toward the connection end to the actuating rod 17 is applied to (15b). As a result, when the elevator platform 4 rises from the lower floor and returns to the standby position, and the hook member 6 shifts to the locking position, the inner wire 15b is pulled and the lock operation unit 10 is in its initial state before operation. return to

The hook member 6 and the lock member 9 are disposed along the left and right side walls of the guide post 14, and the wire device 15 is placed at the center position of the operation rod 17 connecting between the lock members 9. By connecting, the connecting end of the wire device 15 to the actuating rod 17 is approximately coincident on the widthwise centerline of the guide post 14, as shown in FIG.

As a result, since the bending curvature of the wire device 15 drawn out from the wire lead-out opening 25e of the handrail 25 can be increased compared to the case shown in FIG. 5, the contact resistance at the time of wire operation becomes small, It becomes possible to transmit the operating force smoothly.

Furthermore, in this example, as shown in FIGS. 31 and 32 , the lock operation member 51 is rotated around the center of rotation C51 at the front end of the handrail bracket 26 that connects the handrail 25 rotatably. In addition to being freely connected, a moving passage 26a is formed in each of a pair of opposing blade pieces 52 of the handrail bracket 26 at opposing positions, respectively, and a first tension spring 29 and a second tension spring 30 are formed. ), both ends of the handrail locking body 28 pulled by the movement is inserted freely.

The first tension spring 29 and the second tension spring 30 are arranged so that the handrail locking body 28 is biased in the direction of the end position of the interference path 26g side of the moving passage 26a, which will be described later, In the example, one end of the second tension spring 30 is connected to the position of the rotation center C51 of the lock operation member 51 .

The moving passage 26a has an interference path 26g that interferes with the movement trajectory of the lower end of the handrail 25 (the lock operation piece 25c) and a non-interference path 26b that does not interfere with the movement trajectory. Forming an L-shape, when the handrail 25 is in the standing posture, and the handrail locking body 28 is positioned in the interference path 26g, the falling motion of the handrail 25 from the standing posture is regulated, and the non-interference path ( A rollover operation of the handrail 25 is permitted when positioned within 26b). Further, as shown in Fig. 34A, a locking position is set in the vicinity of the end position on the interference path 26g side of the moving passage 26a, and a locking evacuation position is set in the vicinity of the end position of the non-interfering path 26b.

31 , the lock operation member 51 connects a pair of side pieces 51a along the inner wall surfaces of a pair of opposing wing pieces 52 of the handrail bracket 26 to a connecting piece 51b. It is formed by protruding the driven piece 51c from each side piece 51a toward the center in the width direction. Each of the side pieces 51a has a first stopper side 53a, a second stopper side 53b, an operation valve 53c, a pressure valve 53d, and a control valve 53c and a pressure valve 53d connected to each other. An intermediate side 53e is provided.

The lock operation member 51 is, as shown in FIGS. 33A and 33B, an initial position in which the first stopper side 53a is brought into contact with the operation member stopper wall 26i of the handrail bracket 26; As shown in 35b, rotation operation is possible between the operating positions in which the second stopper side 53b is brought into contact with the operation member stopper wall 26i.

As shown in Fig. 33A, when the handrail 25 is pressed by the cover body 21 and is in the fall posture, the lock operation member 51 moves the handrail 25 to the fall posture, as will be described later. According to the change, it is driven to the initial position. In this state, a clockwise rotational force is applied to the operating side 53c in FIG. 33A by a biasing force applied to the handrail locking body 28, and as a result, the first stopper side 53a is moved to the operating member stopper wall 26i. ), and the lock operation member 51 is held in the initial position while preventing the occurrence of rattling and the like.

When the cover body 21 is opened from this state, the handrail 25 by the restoring force of the torsion spring 27 moves in a plane parallel to the left and right side walls of the guide post 14 as shown in FIG. Move and rotate in the direction of the standing posture. As the handrail 25 rotates, the handrail locking body 28 is pressed down by the lower end (locking operation piece 25c) of the handrail 25 to open the rotational trajectory of the handrail 25, so that the handrail ( 25), as shown in FIGS. 32 and 34A, can be shifted to a standing posture in which the lower end of the handrail 25 is in contact with the handrail stopper 26j formed on the handrail bracket 26 .

In the standing posture of the handrail 25, the handrail locking body 28 contacts the front surface of the locking operation piece 25c of the handrail 25 in the counterclockwise direction in FIG. Since the rotation of is regulated, even if a force in the falling direction is applied to the handrail 25, the handrail 25 does not fall over.

From this state, as shown in Fig. 34B, when the lock operation member 51 is rotated from the initial position to the operation position side by pulling up the connecting piece 51b, the handrail locking body 28 is the lock operation member 51. It is pushed down by the operation side 53c of , and moves from the interference path 26g into the non-interference path 26b. Thereafter, when the locking operation member 51 is further rotated to an operating position where the second stopper side 53b contacts the operation member stopper wall 26i, as shown in Fig. 35A, the handrail locking body 28 is locked. It is pushed down by the pressure valve 53d following the operation valve 53c of the operation member 51, and moves to the lock and evacuation position.

In the locking and evacuation position, the handrail locking body 28 is press-contacted to the pressure valve 53d of the lock operation member 51, and the lock operation member 51 by a component force in a direction orthogonal to the pressure valve 53d at the pressure contact point. ) generates a clockwise rotational moment in FIG. 35A , that is, a rotational force for pressing the second stopper side 53b to the operation member stopper wall 26i, and the lock operation member 51 is in the operating position, the handrail locking The sieve 28 is maintained in a state in which each stayed in the locked and evacuated position.

In a state in which the handrail locking body 28 remains in the locked evacuation position, movement of the handrail 25 in the fall direction is permitted, and the handrail 25 rotates in the fall direction according to the closing operation of the cover body 21 . As shown in Fig. 35b, when the handrail 25 rotates in the falling direction, the lower end of the handrail 25 comes into contact with the driven piece 51c, and further when the handrail 25 falls, the lower end of the handrail 25 The driven piece 51c is pressed by the lock operation member 51 to return to the initial position.

The handrail locking body 28 moves to the locking position side following the return operation of the locking operation member 51, and the operating side 53c, the pressing valve 53d, and the intermediate side 53e of the handrail locking body 28 are functions as a cam for determining the movement timing of the handrail locking body 28 so that interference with the handrail 25 does not occur.

The evacuation device of the present disclosure can be used when evacuating a resident or the like in case of a fire in a building.

Claims (10)

a platform for lifting and lowering between the standby position held in the evacuation opening formed on the upper floor and the lower floor;
a rotatable hook member that is locked in a stopper disposed on a periphery of the evacuation opening in a stopped position to hold the elevator in a standby position;
In the locking position, the lock-side protrusion is caught by the hook-side protrusion formed on the hook member to regulate the movement of the hook member to the unlocking position, and according to the movement to the unlocking position, the hook by its own weight a locking member for moving the member to an unlocked position to allow lowering of the platform;
An evacuation device having a lock operation unit for rotating the lock member. The method according to claim 1,
The locking member is biased from the unlocked position to the locked position, and
the locking member and the hook member are held in the unlocking position and the unlocking position by closing the movement path in the locking position direction and the movement path in the locking position direction from each other;
An evacuation device is provided with an interference protrusion in the hook member for driving the hook member toward the locking position in contact with the stopper when the lifting platform is raised. The method according to claim 1 or 2,
An evacuation device in which the hook member and the lock member are connected by a tension member. The method according to claim 1 or 2,
The rotational center of the locking member is disposed at a position where a rotational force is generated toward the locking position by a load applied from the hook-side protrusion to the locking-side protrusion,
The evacuation device is provided with a hook contact portion, in the lock member, for regulating rotation beyond the locking position of the lock member by contacting an edge of the hook member on the unlocking position side. The method according to claim 1 or 2,
The locking-side protrusion and the hook-side protrusion are formed in concentric circles with a center of rotation of the locking member as a center. The method according to claim 1 or 2,
a wire device having one end connected to the locking member to transmit the operating force of the locking operation unit to the locking member;
and a wire guide for guiding the transmission direction of the operating force of the wire device to the locking member into a plane parallel to the rotational operation surface of the locking member. 7. The method of claim 6,
A pair of the locking members are arranged so that the rotational operation surface is parallel to the left and right sidewalls of the guide posts for guiding the elevator, and the left and right sidewalls of the guide posts are interposed therebetween,
The wire device is an evacuation device connected to an operation rod connecting between the locking members. The method according to claim 1 or 2,
and a wire device for transmitting the operating force of the locking operation unit to the locking member disposed in the vicinity of the guide post;
An evacuation device in which a conversion unit is provided between the wire device and the locking member for converting an operating direction of the wire device to an operating direction of the locking member in an unlocking direction. 9. The method of claim 8,
The locking member is arranged in a pair operating in a plane parallel to the front and rear wall surfaces of the guide post,
The conversion unit,
an actuating rod connecting between the locking members;
and an opening lever connected to the wire device provided with a rod locking portion to be engaged with the shaft portion of the actuating rod, and rotating in a direction in which the rod stopping portion moves toward the unlocking position of the locking member during wire tensioning operation; evacuation device. The method according to claim 1 or 2,
and a wire device for transmitting the operating force of the locking operation part to the locking member,
The locking members are respectively disposed at left and right symmetrical positions of the elevator platform,
An evacuation device in which a pair of locking operation units are arranged on a handrail installed on the elevator platform, and gear-shaped parts engaged with each other are installed on the locking operation unit.

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