JP2800647B2 - Escalator with steps for wheelchair - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an escalator with steps for a wheelchair, which can be carried by a wheelchair user.

[0002]

2. Description of the Related Art FIGS.
FIG. 6 is a diagram showing a conventional wheelchair-equipped escalator disclosed in Japanese Patent Publication No. 90, FIG. 6 is a conceptual side view, FIG. 7 is an enlarged vertical sectional view of an entrance / exit portion of FIG. 6, and FIG. It is a top view. In the drawing, (1) is a main frame of an escalator arranged at an inclination, (2) is a shaft (3) provided near an upper end of the main frame (1), and a step chain (shown in FIG. The front wheels are connected to the main frame (1), and are placed on the main frame (1) to move horizontally while maintaining the horizontal position.
(4), the rear wheel (5) pivotally mounted near the lower end of the main frame (1), i.e., the rear wheel (5), and the cleat riser (6) provided on the rear wheel (5) It is constituted by the tread plate (7).

[0003] (8) is a first wheelchair step provided between the normal steps (2) and configured similarly to the normal steps (2) and connected to the normal steps (2). (9) is provided between the normal steps (2) and is similar to the normal steps (2) except for the following items, and is connected to the normal steps (2) and the first wheelchair steps (8). 1
The main frame (1) of the wheelchair step (8) is a second wheelchair step arranged near the lower end, and the movable stepboard (10) mounted on the frame (10) of the second wheelchair step (9) via a lifting mechanism. An inner riser (12) is provided near the lower end of the main frame (1) of the movable tread (11) and the movable tread plate (11) and housed inside the cleat riser (6).

A driving device (13) is provided below the entrance of the main frame (1) and drives a connecting mechanism of a first wheelchair step (8) to be described later. (14) is a coupling mechanism provided on the first wheelchair step (8), which can penetrate through the cleat riser (6) and protrude toward the lower end of the main frame (1) and is always held at the retired position. The driving device (1) is engaged with the connecting arm (15) and the driving device (13).
It is constituted by a transmission mechanism (16) for transmitting the operation of 3) to the coupling mechanism (14). Reference numeral (17) denotes a connecting portion provided on the lower surface of the movable tread (11), to which a protruding connecting arm (15) is fitted.

A holding mechanism (18) is provided on the lower surface of the movable step board (11) and engages with the tip of a protruding connecting arm (15).
As shown in the figure, each of the side surfaces of the connecting arm (15) is provided with a ball plunger (20) having a spring mechanism for pressing a ball fitted into the recess (19) at the tip of the connecting arm (15). ing. (21) is the first wheelchair step (8) and the second wheelchair
This is a wheelchair loaded on the wheelchair step (9).

The conventional escalator with steps for a wheelchair is constructed as described above, and during normal operation, the connecting arm (15) of the connecting mechanism (14) is held at a retracted position in the steps (8) for the first wheelchair. The movable step board (11) is held at a lowered position with respect to the second wheelchair step (9). In this state, the normal step (2), the first wheelchair step (8) and the second wheelchair step (9) are divided into the main frame (1).
Circulates up and down while maintaining a horizontal position in the interior. When the wheelchair is driven to transport the wheelchair user, when the first wheelchair step (8) and the second wheelchair step (9) are arranged in the horizontal moving part of the lower entrance of the main frame (1). Although the detailed description is omitted, the drive device (13) is displaced upward and engaged with the transmission mechanism (16).

As a result, when the driving device (13) is urged, the connecting mechanism (14) is driven via the transmission mechanism (16), and the connecting arm (15) protrudes and the second wheelchair step (9). ) Is connected to the connecting portion (17). At the same time, the ball plunger (20) of the holding mechanism (18) fits into the concave portion (19) at the tip of the connecting arm (15), and the connecting arm (15) is held at the projecting position. In this state, the step (7) of the first wheelchair step (8) and the second wheelchair step
A wheelchair is loaded on the movable tread (11) of (9).

[0008] Then, the normal step (2), the step for the first wheelchair
When the step (8) and the second wheelchair step (9) move and rise, the movable stepboard connected to the first wheelchair step (8) by the connecting arm (15) by the rising of the first wheelchair step (8). (11) rises with respect to the second wheelchair step (9). Thereby, the first
A continuous horizontal surface is formed by the tread plate (7) of the wheelchair step (8) and the movable tread plate (11), and the wheelchair is conveyed toward the upper end of the main frame (1) in a stable posture.

As described above, when the wheelchair is driven, the connecting mechanism (14)
Is driven so that the connecting arm (15) protrudes and the step for the second wheelchair is
(9) is fitted to the connecting portion (17), the ball plunger (20) of the holding mechanism (18) is fitted to the concave portion (19) of the distal end of the connecting arm (15) and the connecting arm (15). Is held in the protruding position. Further, when returning to the normal operation, the connecting mechanism (14) is driven in the reverse direction, the connecting arm (15) retreats, and separates from the ball plungers (20) of the holding mechanism (18).

[0010]

In the conventional escalator with a step for a wheelchair as described above, the connecting mechanism (14) and the connecting arm (1) are used.
Hold and release are performed during the operation of 5). At this time, the holding mechanism (1) that fits into the concave portion (19) at the tip of the connecting arm (15)
The ball plunger (20) of (8) fits into and disengages from the recess (19), but this causes a movement resistance in the connecting arm (15). Then, the movement resistance of the connecting arm (15) changes due to lubrication or surface roughness of the concave portion (19), and is not constant, and the connecting mechanism (1) when the ball plunger (20) is fitted and disengaged.
Excessive horizontal load may act on 4). For this reason, there has been a problem that the abnormal load at that time causes a failure in the coupling mechanism (14), the transmission mechanism (16), and the like, which causes a failure.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the present invention is to provide an escalator with a step for a wheelchair in which a connecting arm is smoothly held and released by a movable step board when a connecting arm of a connecting mechanism is actuated. With the goal.

[0012]

According to a first aspect of the present invention, there is provided an escalator with a step for a wheelchair.
A plurality of connected steps arranged on an inclined main frame, a normal step that circulates up and down while maintaining a horizontal posture, a first wheelchair step that is provided between these normal steps and that moves up and down in the same manner as the normal step; A second wheelchair step provided between the steps and arranged at the lower end side of the main frame of the first wheelchair step and moving up and down in the same manner as a normal step, and provided on the second wheelchair step so as to be able to move up and down; A coupling mechanism provided on the step for the first wheelchair, which is configured to be protrudable near the lower end of the main frame and is normally held at the retired position, and a coupling mechanism provided on the movable tread and protruding are fitted. A connecting portion for connecting the tread of the first wheelchair step and the movable tread at the same height; and a movable tread provided in the movable tread and urged in the engaging direction to move the movable tread to the lowered position.
At one time, he is pressed by the base of the second wheelchair step and retires.
Position of the movable tread plate by the connection of the connecting mechanism .
Engagement direction is biased by upward displacement of wheelchair steps
And a holding mechanism that is further displaced to the engagement position and engages with the protruding connection mechanism.

In the escalator with a step for a wheelchair according to the second aspect of the present invention, a plurality of connected steps are arranged on an inclined main frame, and the normal steps are circulated up and down while maintaining a horizontal posture. A first wheelchair step provided between the normal steps and moving up and down in the same manner as the normal step;
A second wheelchair step provided between the normal steps and arranged at the lower end of the main frame of the first wheelchair step and moved up and down in the same manner as the normal steps, and provided on the second wheelchair step so as to be able to move up and down. The movable tread plate, a coupling mechanism provided on the first wheelchair step and capable of protruding toward the lower end of the main frame and normally held at the retreat position, and a coupling mechanism provided on the movable tread plate and protruding are fitted. A connecting portion for connecting the tread of the first wheelchair step and the movable tread at the same height; and a connecting portion provided on the movable tread and urged in the engaging direction so that the movable tread is always in the lowered position.
Is pressed to the base of the second wheelchair step and placed in the retired position
The movable position of the movable stepboard with respect to the step for the second wheelchair is increased by the connection of the connecting mechanism.
A holding mechanism that is displaced to the position and engages with the protruding connecting mechanism, and a protruding motion detector that operates when the connecting arm of the connecting mechanism protrudes to a predetermined position on the movable tread.

According to a third aspect of the present invention, there is provided an escalator with a step for a wheelchair according to any one of the first and second aspects. The recessed portion of the rack provided in the above forms a recessed portion with which the holding portion of the holding mechanism is engaged.

[0015]

According to the first aspect of the present invention, the movable stepboard is connected to the first wheelchair step via the connection portion by the protrusion of the connection arm of the connection mechanism. Then, the holding mechanism is operated by the rise of the movable tread from the second wheelchair step with the rise of the first wheelchair step, engaging the connection arm and holding the connection arm at the protruding position.

According to the second aspect of the present invention, the movable stepboard is connected to the first wheelchair step via the connection portion by the protrusion of the connection arm of the connection mechanism. Then, the holding mechanism is operated by the rise of the movable tread from the second wheelchair step with the rise of the first wheelchair step, engaging the connection arm and holding the connection arm at the protruding position.
In addition, when the connecting arm of the connecting mechanism protrudes to a predetermined position of the movable tread while driving the wheelchair, the projecting motion detector operates.

According to the third aspect of the present invention constructed as described above, in addition to the function of the escalator with a step for a wheelchair according to any one of the first and second aspects, a connecting mechanism of the connecting mechanism is provided. A holding portion of a holding mechanism that operates during wheelchair operation is engaged with a concave portion formed on the lower surface of the connecting arm and formed by a concave portion of a rack.

[0018]

[Embodiment 1] 1 to 3 show an embodiment of the present invention. FIG. 1 is a diagram corresponding to FIG. 7 showing a normal operation, and FIG. 2 is a diagram showing an initial state of wheelchair driving in the escalator of FIG. FIG. 3 is an equivalent view of FIG. 1 showing a wheelchair driving state of the escalator of FIG. 1, and FIG.
8 to FIG. In the figure, (2) is provided with a shaft (3) near the upper end of the main frame (1), and many are connected to the main frame (1) by a step chain (not shown) via the shaft (3). It is a normal step that moves up and down while maintaining a horizontal posture, and the front wheel (4), the opposite front wheel (4) side pivotally attached to both ends of the shaft (3),
That is, the rear wheel (5) and the rear wheel pivotally mounted near the lower end of the main frame (1)
It is composed of a crate riser (6) provided on the (5) side and a tread (7) provided on the upper surface.

Reference numeral (8) denotes a first wheelchair step provided between the normal steps (2) and configured similarly to the normal steps (2) and connected to the normal steps (2). (9) is provided between the normal steps (2) and is similar to the normal steps (2) except for the following items, and is connected to the normal steps (2) and the first wheelchair steps (8). 1
The main frame (1) of the wheelchair step (8) is a second wheelchair step arranged near the lower end, and the movable stepboard (10) mounted on the frame (10) of the second wheelchair step (9) via a lifting mechanism. An inner riser (12) is provided near the lower end of the main frame (1) of the movable tread (11) and the movable tread plate (11) and housed inside the cleat riser (6).

Reference numeral (14) denotes a connecting mechanism provided on the first wheelchair step (8), which penetrates through the cleat riser (6).
The connecting arm (15), which is configured to protrude toward the lower end of (1) and is normally held at the retired position, and a driving device (13) provided below the entrance of the main frame (1) (not shown in FIG. And a transmission mechanism (16) (not shown, but similar to FIG. 7) for transmitting the operation of the driving device (13) to the coupling mechanism (14). Reference numeral (151) denotes a concave portion provided on the lower surface near the tip of the connecting arm (15). Reference numeral (17) denotes a connecting portion provided on the lower surface of the movable tread (11), to which a protruding connecting arm (15) is fitted.

A holding mechanism (18) is provided on the lower surface of the movable tread plate (11) and engages with the tip of the protruding connecting arm (15). The holding mechanism protrudes downward from the lower surface of the movable tread plate (11). An arm (22) having an intermediate portion pivotally supported by a support, and a holding portion formed at an end of the arm (22) near the first movable tread (8) and corresponding to the concave portion (151) of the connecting arm (15). Part (23), one end is on the lower surface of the movable tread plate (11) and the other end is an arm (22)
A biasing body (24) composed of a compression coil spring and a step for the second wheelchair, each of which is disposed at an end near the inner riser (12).
The cleat riser (6) of (9), that is, the arm (22) which is fixed to the fixed portion composed of the frame (10) and supports the end of the arm (22) near the riser (12), FIG. At a predetermined position.

In the escalator with a step for a wheelchair configured as described above, the connecting arm (15) of the connecting mechanism (14) is held at the retreat position in the step (8) for the first wheelchair during normal operation. The movable step board (11) is held at the lowered position of the second wheelchair step (9). Although the arm body (22) of the holding mechanism (18) is urged counterclockwise in FIG. 1 by the urging body (24), the end of the arm body (22) closer to the inner riser (12). Is supported by the blocking piece (25) and the arm (22) is held by the holding portion (23).
Is disposed in a position deviated from the concave portion (151) of the connecting arm (15) as shown in FIG. In this state, the normal steps (2), the first wheelchair steps (8), and the second wheelchair steps (9) circulate and move in the main frame (1) while maintaining a horizontal posture.

When driving a wheelchair to transport a wheelchair user, the first wheelchair step (8) and the second wheelchair step are used.
When (9) is disposed in the horizontal moving portion of the entrance below the main frame (1), detailed description is omitted, but the drive mechanism (13) (FIG. 6) is displaced upward to displace the transmission mechanism (16). ). As a result, the transmission mechanism (1
The coupling mechanism (14) is driven via 6), and the coupling arm (15) protrudes and is fitted to the coupling portion (17) of the second wheelchair step (9).
Then, the connecting arm (15) is arranged at the projecting position, and the connecting arm (15)
The concave portion (151) of the arm body (22) is disposed at a position facing the holding portion (23). In this state, the step board (7) of the first wheelchair step (8)
A wheelchair is mounted on the movable step board (11) of the second wheelchair step (9).

Then, the normal step (2), the first wheelchair step
When the step (8) and the second wheelchair step (9) move and rise, the movable stepboard connected to the first wheelchair step (8) by the connecting arm (15) by the rising of the first wheelchair step (8). (11) rises with respect to the second wheelchair step (9). The arm (22) of the holding mechanism (18) urged by the urging body (24) by the upward displacement of the movable step board (11) with respect to the second wheelchair step (9) moves counterclockwise in FIG. Rotate. Then, as shown in FIG. 3, the holding portion (23) of the arm body (22) has a concave portion (151) of the connecting arm (15).
Fits. Thereby, the arm body (22) of the holding mechanism (18) is held at a predetermined projecting position, and the step for the first wheelchair is held.
A continuous horizontal surface is formed by the tread plate (7) and the movable tread plate (11) of (8), and the wheelchair is conveyed toward the upper end of the main frame (1) in a stable posture.

When the first wheelchair step (8) and the second wheelchair step (9) on which the wheelchair is loaded approach the upper end side entrance / exit of the main frame (1), the second wheelchair step (9) is turned off. The movable tread (11) gradually descends with respect to the frame (10). This makes the holding mechanism (18)
The end of the arm body (22) near the riser (12) is supported by the blocking piece (25), and the arm body (22) is connected to the holding arm (23) of the connecting arm (15) as shown in FIG. The posture returns to the position deviated from the concave portion (151). As described above, the movable step board (11) is connected to the first wheelchair step through the connection portion (17) by the protrusion of the connection arm (15) of the connection mechanism (14).
Connected to (8). In addition, the holding mechanism (18) is operated by the rise of the movable tread plate (11) from the second wheelchair step (9) with the rise of the first wheelchair step (8). By this operation, the holding portion (23) of the arm (22) is connected to the connecting arm (15) as shown in FIG.
In the concave portion (151) of the first embodiment.

Therefore, when the connecting arm (15) of the connecting mechanism (14) is actuated, the connecting arm (15) is smoothly held and released by the movable tread (11), and the connecting mechanism (14) is excessively enlarged in the horizontal direction. No load is applied. Then, the abnormal load at that time causes the coupling mechanism (14), the transmission mechanism (16), etc. to fail, and the occurrence of the failure that causes the failure is eliminated, and the wheelchair steps that operate safely with high reliability An escalator can be realized.

By applying the embodiment of FIGS. 1 to 3, an escalator with a step for a wheelchair having the following structure can be easily obtained. That is, the first wheelchair step (8) and the third and fourth wheelchair steps similar to the second wheelchair step (9) and the second wheelchair step (9) are provided, and the first wheelchair step is carried out during the wheelchair transfer.
It is possible to form a wide horizontal plane for wheelchair loading by the steps from the fourth wheelchair to the fourth wheelchair.

Embodiment 2 FIG. FIG. 4 is a view corresponding to FIG. 2 showing an initial state of wheelchair driving in a wheelchair stepped escalator according to another embodiment of the present invention, and has the same configuration as that of FIGS. Have been. In the drawings, the same reference numerals as those in FIGS. 1 to 3 denote corresponding parts, and (26) denotes a connecting arm (15) of a connecting mechanism (14) including a switch mounted on a fixed portion of the first wheelchair step (8). When the connecting arm (15) moves to a predetermined protruding position during wheelchair driving, it is pressed by a pressing element (27) provided on the connecting arm (15) to operate.

In the wheelchair-equipped escalator having the above-described structure, the first wheelchair step (8) and the second wheelchair step are used when the wheelchair is transported by the wheelchair user.
The drive device (13) is engaged with the transmission mechanism (16) when (9) is disposed in the horizontal moving section of the entrance below the main frame (1). As a result, the drive mechanism (13) is urged to drive the transmission mechanism.
The connecting mechanism (14) is driven via the (16), and the connecting arm (15) protrudes and is disposed at a predetermined position fitted to the connecting portion (17) of the second wheelchair step (9).

In this state, the projecting motion detector (26) is
It is confirmed that the connecting arm (15) of the connecting mechanism (14) is arranged at a predetermined projecting position by being operated by being pressed by (27). Then, the wheelchair is driven through the operation of the protrusion motion detector (26). Thus, it is possible to prevent an accident caused by performing a wheelchair operation in a state where the connecting arm (15) of the connecting mechanism (14) is not arranged at a predetermined projecting position. Also, in the embodiment of FIG. 4, a holding mechanism (18) similar to that of the embodiment of FIGS. 1 to 3 is provided, so that detailed description is omitted, but the embodiment of FIG. Obviously, the same operation as the embodiment of FIG. 3 can be obtained.

In the embodiment shown in FIG. 4, a retreat operation detector is provided which operates when the connecting arm (15) of the connecting mechanism (14) is disposed at a predetermined retreat position during normal operation. It is possible to prevent an accident caused by normal operation in a state where the connecting arm (15) of (14) is not arranged at the predetermined retirement position. Further, the projecting motion detector (26) in the embodiment of FIG.
It is also possible to mount it on the side, and even in this case, the same operation as the embodiment of FIG. 4 can be obtained.

Embodiment 3 FIG. FIG. 5 is also a diagram corresponding to FIG. 3 showing a wheelchair driving state in a wheelchair stepped escalator according to another embodiment of the present invention, and is the same as FIG. 1 to FIG. 3 except for FIG. I have. In the drawings, the same reference numerals as in FIGS. 1 to 3 denote corresponding parts, and (28) a rack provided on the lower surface of the connecting arm (15) of the connecting mechanism (14) and meshing with the transmission mechanism (16); Is the connecting arm (1
A recess formed by the recess of the rack (28) formed near the tip of the connecting arm (15) of (5).

In the embodiment of FIG. 5 configured as described above, a holding mechanism (18) similar to that of the embodiment of FIGS. 1 to 3 is provided. It is clear that the same operation as that of the embodiment shown in FIGS. A concave portion (151) is formed by a concave portion of the rack (28) formed near the tip of the connecting arm (15). Therefore, the arm (22) of the holding mechanism (18)
It is not necessary to particularly process the recess in which the hole is fitted, and the manufacturing cost can be reduced.

[0034]

According to the present invention as described claim 1 the invention described the above the present invention, a normal footstep circulating lifting movement is disposed on the main frame in which a large number inclined are connected while maintaining a horizontal attitude, these conventional footstep Between the first wheelchair step and the first step provided between the first step and
A second wheelchair step disposed at the lower end side of the main frame of the wheelchair step and moving up and down in the same manner as a normal step, a movable step plate provided on the second wheelchair step and configured to be able to move up and down, and a first wheelchair The connecting mechanism provided on the step for use and protruding toward the lower end of the main frame and normally held at the retreat position, and the connecting mechanism provided on the movable step board and protruding are fitted to form a first wheelchair step. A connecting portion for connecting the tread plate and the movable tread plate at the same height; and a movable tread provided on the movable tread plate and urged in the engaging direction.
When the board is in the lowered position, it is always at the base of the second wheelchair step.
It is pressed and arranged at the retired position, and the movable stepboard is raised by the ascending displacement of the second wheelchair step by the connection of the connecting mechanism .
And a holding mechanism that is displaced to the engagement position by the urging in the engagement direction and engages with the protruding connection mechanism.

Thus, when the wheelchair is driven, the movable step board is connected to the first wheelchair step via the connecting portion by the protrusion of the connecting arm of the connecting mechanism. Then, the holding mechanism is operated by the rise of the movable tread from the second wheelchair step with the rise of the first wheelchair step, engaging the connection arm and holding the connection arm at the protruding position. Therefore, when the connecting arm of the connecting mechanism is operated, the connecting arm is smoothly held and released by the movable step board, so that the cause of the failure due to the abnormal load of the connecting mechanism at the time of operating the connecting arm is eliminated, and the reliability of the escalator with a step for a wheelchair is improved. It has the effect of improving safety.

In addition, as described above, the invention according to claim 2 of the present invention comprises a plurality of connected ordinary steps arranged on an inclined main frame and circulating up and down while maintaining a horizontal posture;
A first wheelchair step provided between these normal steps and moving up and down in the same manner as the normal step, and arranged at the lower end of the main frame of the first wheelchair step provided between the normal steps and similar to the normal step A step for the second wheelchair moving up and down, a movable step plate provided on the step for the second wheelchair and configured to be able to move up and down, and a step provided for the step for the first wheelchair and protruding near the lower end of the main frame. A connecting mechanism that is normally held at the retired position, a connecting portion that is provided on the movable tread and that projects and connects the connecting mechanism that connects the tread and the movable tread of the first wheelchair step to the same height; and a movable tread. And is urged in the direction of engagement.
When the movable tread is in the lowered position, the second wheelchair
It is pressed to the base and placed in the retired position,
To increase the displacement to the second wheelchair use step of the movable tread plate by
Therefore, a projection operation detector which is displaced to the engagement position by the urging in the engagement direction and operates when the projection is made is provided.

Thus, the movable step board is connected to the first wheelchair step via the connection portion by the protrusion of the connection arm of the connection mechanism. Then, the holding mechanism is operated by the rise of the movable tread from the second wheelchair step with the rise of the first wheelchair step, engaging the connection arm and holding the connection arm at the protruding position. In addition, when the connecting arm of the connecting mechanism protrudes to a predetermined position of the movable tread while driving the wheelchair, the projecting motion detector operates. Therefore, when the connecting arm of the connecting mechanism is operated, the connecting arm is smoothly held and released by the movable step board, so that the cause of the failure due to the abnormal load of the connecting mechanism at the time of operating the connecting arm is eliminated, and the reliability of the escalator with a step for a wheelchair is improved. It has the effect of improving safety. In addition, since the protruding motion detector confirms that the connecting arm of the connecting mechanism is located at the predetermined protruding position and performs wheelchair driving, the wheelchair driving is performed in a state where the connecting arm is not at the predetermined protruding position. This has the effect of preventing accidents caused by such accidents.

According to the third aspect of the present invention, the escalator with a step for a wheelchair according to any one of the first and second aspects is provided on the lower surface of the connecting arm of the connecting mechanism. A recess for engaging the holding portion of the holding mechanism is formed by the recess of the rack.

According to this, in addition to the operation of the escalator with a step for a wheelchair according to any one of the first and second aspects, in addition to the recess formed by the recess of the rack provided on the lower surface of the connecting arm of the connecting mechanism. The holding portion of the holding mechanism is engaged during wheelchair driving. Therefore, there is an effect of any one of the first and second aspects, and there is no need to particularly process a recess in which the holding portion of the holding mechanism arm is fitted, so that there is an effect of reducing manufacturing costs.

[Brief description of the drawings]

FIG. 1 is a view showing a first embodiment of the present invention, and is a view corresponding to FIG.

FIG. 2 is a view corresponding to FIG. 1, showing a state of the escalator in FIG. 1 in an initial state of wheelchair driving.

FIG. 3 is a view corresponding to FIG. 1, showing a wheelchair driving state of the escalator of FIG. 1;

FIG. 4 is a view showing a second embodiment of the present invention, and is a view corresponding to FIG. 2 showing an initial state of wheelchair driving.

FIG. 5 is a view showing a third embodiment of the present invention, and is a view corresponding to FIG. 3 showing a wheelchair driving state.

FIG. 6 is a conceptual side view showing a conventional wheelchair-equipped escalator.

FIG. 7 is an enlarged vertical sectional view of the entry / exit point of FIG. 6;

FIG. 8 is a plan view of a main part of FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main frame 2 Normal stairs 8 First wheelchair step 9 Second wheelchair step 11 Movable tread plate 14 Connection mechanism 15 Connection arm 151 Depression 17 Connection section 18 Holding mechanism 23 Holding section 26 Projection motion detector 28 Rack

Claims (3)

(57) [Claims] An ordinary step having a large number of connected and arranged on an inclined main frame and moving in a circulating manner while maintaining a horizontal posture, and a first step provided between these ordinary steps and moving up and down in the same manner as the ordinary step described above. A wheelchair step, a second wheelchair step disposed between the normal step and disposed at the lower end side of the main frame of the first wheelchair and moved up and down in the same manner as the normal step; A movable step plate provided on the step and configured to be able to ascend and descend, a coupling mechanism provided on the first wheelchair step and configured to be protrudable near a lower end of the main frame and always held at a retracted position; A connecting portion that is provided on the movable tread plate and that connects the protruding connection mechanism to connect the tread plate of the first wheelchair step and the movable tread plate to the same height;
The movable step board is provided and urged in the engagement direction to move the movable step board.
When the tread is in the lowered position, the second wheelchair
It is pressed to the base and placed at the retired position,
When the movable stepboard is moved upward by the connection with respect to the step for the second wheelchair, the movable stepboard is moved to the engagement position by urging the engagement direction.
An escalator with a step for a wheelchair, comprising: a holding mechanism that is displaced and engages with the protruding connection mechanism. 2. A normal step which is arranged on a slanted main frame which is connected to a large number and which moves horizontally while maintaining a horizontal posture, and a first step which is provided between these normal steps and moves up and down in the same manner as the normal step. A wheelchair step, a second wheelchair step disposed between the normal step and disposed at the lower end side of the main frame of the first wheelchair and moved up and down in the same manner as the normal step; A movable step plate provided on the step and configured to be able to ascend and descend, a coupling mechanism provided on the first wheelchair step and configured to be protrudable near a lower end of the main frame and always held at a retracted position; A connecting portion that is provided on the movable tread plate and that connects the protruding connection mechanism to connect the tread plate of the first wheelchair step and the movable tread plate to the same height;
The movable step board is provided and urged in the engagement direction to move the movable step board.
When the tread is in the lowered position, the second wheelchair
It is pressed to the base and placed at the retired position,
When the movable stepboard is moved upward by the connection with respect to the step for the second wheelchair, the movable stepboard is moved to the engagement position by urging the engagement direction.
An escalator with a step for a wheelchair, comprising: a holding mechanism that is displaced and engages with the protruding connection mechanism; and a protruding motion detector that operates when the connection arm of the connection mechanism protrudes to a predetermined position on the movable tread plate. . 3. The holding mechanism according to claim 1, wherein a recess for engaging the holding portion of the holding mechanism is formed by a recess of the rack provided on the lower surface of the connecting arm of the connecting mechanism. Escalator with steps for wheelchair.