JPH01317986A - Passenger conveyer - Google Patents

Abstract

PURPOSE:To minimize the clearance between both ends of a movable step board and the opposite end of an ordinary footstep by supporting an inclination portion on a footstep main body by a cam or a link mechanism for moving the inclination portion with the inclination to the main frame upper end side with respect to the footstep main body. CONSTITUTION:When a movable step board 9 of an inclination portion 8 is inclined from the horizontal state during ordinary operation, with the inclination, the inclination portion 8 is moved to the main frame upper end side with respect to a footstep main body within the range where a pin 19 is regulated by the leading and trailing ends of an elongated hole, and at the same time, a movable step board 9 is bent to be put in the transport operating state for a standard type wheelchair. When the inclination portion 8 is returned from the above state to the state for the ordinary operation where the movable step board 9 is horizontal, the movable step board 9 is moved to the main frame lower end side with respect to the footstep main body 7. Accordingly, the clearance between the movable step board and the ordinary footstep 3 adjacent to the main frame upper end side and lower end side can be held down to the minimum all the time the movable step board 9 is in the ordinary operating state, in the transport operating state for a standard type wheelchair and in the transition therebetween.

Description

[Detailed description of the invention] [Industrial application field]

This invention relates to a passenger conveyor such as S-Rake, which is capable of transporting *U such as wheelchairs for physically disabled people.

[Conventional technology]

6 to 10 show a conventional passenger comparator 1 described in Japanese Unexamined Patent Publication No. 60-52487. 6 to 1 ([7), 1 is a main frame arranged at an angle, 2 is a circulation path mainly composed of a guide rail provided in the main frame 1 and described later, and the circulation path 2 is ,
An outgoing path 2a is formed on the upper surface side of the main frame 1, an inverted portion 2b is formed at the upper and lower end portions 1a and 1b, and a return path 2C is formed at the bottom. 3 is a large number of regular steps arranged along the circulation path 2;
4 is a step with a slope, which is usually placed in small numbers between steps 3,
The steps 3.4 are connected to endless left and right step chains 5. The step 4 with a slope part has a slope part 8 attached to a step main body 7 having horizontal treads 6 on the left and right sides, and a pin 19 at the upper corner of the upper end side of the main frame 1.
It is pivoted by. The inclined portion 8 is provided with a movable step board 9 that fits between the horizontal step boards 6, and these step boards 6, 9 are formed to have the same length in the front-rear direction as the step board of the normal step 3. Further, guide rails 10 and 11 are fixed to the main frame 1, a step shaft 12 is attached to the upper end side of the main frame 1 of the step 3.degree. 4, and the step shaft 12 is connected to the step chain 5. Step axle 1
Wheels 13 provided at both ends of the step 2 and wheels 14 provided at both ends of the step shaft 12 of the step 3.4 are engaged with and supported by the guide rails 10 and 11, respectively. 15 is arranged below the movable step plate 9 of the inclined part 8 and
The operating mechanism 15 is an operating mechanism that tilts and returns the
is composed of the following parts: That is, the guide rod 15a has both ends fixed to the brackets 7a provided on both sides of the step body 7 in the width direction, and the guide rod 15b is arranged below the guide rod 15a apart from the guide rod 15a, and has both ends fixed to the brackets 7a.
15C is an actuating shaft that is supported by the guide rod 15a, and has threaded portions facing oppositely to each other near both ends.
A pair of left and right input bodies, 15e protruding from the input body 15c, are loosely fitted into the input body 15b, the middle part is threadedly fitted to the threaded part of the actuating shaft 15b and hangs down, and a roller 15d is pivotally attached to the lower end. A retainer 15E is loosely inserted into the bracket 7a of the step main body 7 and fitted into a hole in the frame of the step main body 7, and 15E is an operating shaft 15b.
It is a chain gear fixed to. Reference numeral 16 denotes a drive mechanism disposed at the lower end of the forward path 2a in the main frame 1, and is configured as follows. That is, 16a is an electric motor for lifting and lowering, and is provided with an output shaft 16b whose axial direction is vertically arranged, and is fixed to an arm 16c protruding from the main frame 1. 16d is a support frame whose lower end is screwed into the output shaft 16b, and both sides of the step 4 in the width direction are loosely inserted into the arms 16c; 16e is pivotally attached to the support frame 16c; one side is the electric motor 16g for ms;
The front and rear chain gears 16f driven by are endless chains that are hung between the front and rear chain gears 10e and mesh with the chain gear 15e of the operating shaft 15b. Furthermore, in main frame 1,
An operating rail 17 corresponding to the roller 15d of the input body 15c is fixed along the outward path 2a. Note that 18 is a wheelchair. Next, the operation of this passenger conveyor will be explained. Normal steps 3. A step 4 with an inclined portion circulates through the circulation path 2. At this time, guide rail 10.11
The wheels 13 and 14 are guided by the steps 3 and 4, and the steps 3 and 4 move horizontally at the end of the outgoing path 2a, and move inclined while maintaining a horizontal posture in the middle of the outgoing path 2a. And during normal operation,
In the drive mechanism 16, the support frame 16d is in the lowered position, the operation 81 mechanism 15 of the step 4 with an inclined part is in the retracted position where the input body 15c is in contact with the bracket 7a of the step body 7, and the roller 1 is in the retracted position.
6d is apart from the operating rail 17, and the retainer 15e is fitted into the step main body 7, so that the movable step board 9 is located on the same horizontal plane as the horizontal step board 6, so that the step 4 with the inclined part Similarly to the normal step 3, this also transports general passengers. When transporting a user of a wheelchair 18, the passenger conveyor is stopped at a position where the steps 4 with inclined parts correspond to the drive mechanism 16 by a manager of the passenger conveyor. Next, a switch (not shown) is manually operated to turn on the drive I.
The elevating motor 16a of the I+ mechanism 16 is energized and the output shaft 1
By rotating 6b, the support frame 16d is raised guided by the arm 16c, and the chain 16f meshes with the chain gear 15f of the operating mechanism 15. Next, the driving electric motor 16g is energized and the chain 16f is driven via the chain gear 16e, and the chain gear 15f of the operating mechanism 15 rotates, and the operating shaft 15b also rotates, so that the threaded portion of the chain gear 16f rotates. The body 15c moves forward inward in the width direction of the step 4, and the roller 15d engages with the operating rail 17. In this state, the support frame 16d returns to its lowered position by reversely driving the elevating electric gfJJ machine 16a. When transporting the user of the wheelchair 18 upward from the lower end 1b of the main frame 1 to the upper end 1a, the user along with the wheelchair 18 is placed on the normal step 3 adjacent to the lower side of the step with a slope 4. Get on and drive the passenger Konopair up. Then, as the step 4 with the inclined part moves to the inclined movement, the roller 15d moves to the operating rail 17.
The inclined part 8 rotates around the pin 19 that pivots on the step body 7, and the movable tread 9 bends relative to the horizontal tread 6 so that the lower end of the main frame 1 is lowered, thereby lowering the wheelchair. 18 is transported with its user. Also, wheelchair 1
When transporting a user 8 downward from the upper end 1a of the main frame 1 to the lower end 1b, the user, along with the wheelchair 18, is placed on the normal step 3 adjacent to the lower side of the step 4 with an inclined section. , driving the passenger conveyor down. As mentioned above, the wheelchair 18 and its user ride on the regular steps 3 which are located below the steps 4 with inclined portions, that is, adjacent to the lower end of the main frame 1, and are transported up and down, thereby preventing problems. Stable transportation is possible without using steps with long dimensions in the front-back direction. Furthermore, after transporting the wheelchair 18 and its user, the step 4 with the inclined part is stopped at a position corresponding to the drive mechanism 16, the support frame 16d of the drive mechanism 16 is raised,
The input body 15c of the operating mechanism 15 is returned to the retracted position and the support frame 16d is lowered. Thereafter, by operating the passenger conveyor, the inclined portion 8, the movable tread 9, and the horizontal tread 6 return to the state in which they are located on the same horizontal plane.
will return to normal operating condition, capable of transporting general passengers.

[Problem to be solved by the invention]

The conventional passenger conveyor is constructed as described above, and when transporting a wheelchair, the movable tread 9 of the inclined part 8 is located on the same horizontal plane as the horizontal tread 6 of the step main body 7, as shown in FIG. When the inclined part 8 is inclined as shown in the figure, the inclined part 8 rotates about a pin 19 whose position is fixed with respect to the step body 7. In general, the dimensions of the tread in the longitudinal direction are as shown in FIG. 11, and the locus 20 of the surface of the riser 9a of the movable tread 9 is a radius A centered on the upper end 21 of the tread 9 on the side opposite to the riser. Then, the center of the pin 19 is set at the upper end 21 of the treadle on the side opposite to the riser. Since this is impossible, the step 4 is arranged with the center of the pin 19 at the point 24 at the upper corner on the side opposite to the riser. Therefore, when the slope part 8 is tilted, the upper end 22 of the riser 9a moves along a trajectory 23 with a radius B centered on the point 24. During normal operation, the gap between the To prevent this, move the pin 19 toward the bottom end of the main frame and place the pin 19 at the point 25, for example.
When the center of the riser 9a is placed, the upper end 22 of the riser 9a becomes a locus 26 with a radius C centered on the point 25, and is separated from the normal step adjacent to the lower end of the main frame, making it possible to reduce the gap with this step. The upper end 21 follows a radial trajectory centered on the point 25, and the gap between it and the normal step adjacent to the upper end of the main frame increases. This invention was made in order to solve the above-mentioned problems, and is aimed at always minimizing the gap between both ends of the movable tread of a step with an inclined part and the opposite end of the normal step adjacent thereto. The purpose is to create a highly safe passenger conveyor that can be used without the danger of things getting caught in the gaps.

[Means to solve the problem]

This invention provides a step with an inclined part, in which the inclined part is bendably pivoted to the step body, and a tread having the same length in the front and back direction is provided on the inclined part and the step body, and is usually provided between the steps. In the passenger conveyor, a pin provided on one side of the upper part of the main frame of the inclined part and the main frame of the step body is fixedly supported by a long hole provided in the other side so as to be movable in the front and rear direction, and the pinot is tilted according to the inclination of the inclined part. The inclined part is supported by the step body by a cam mechanism or a link mechanism that moves the part toward the upper end of the main frame with respect to the step body.

[For production]

In the passenger conveyor according to the present invention, when the movable tread of the sloping part is tilted from a horizontal state during normal operation, the cam or the link mechanism causes the sloping part to move relative to the main body of the step, and the pins are moved to the front and rear ends of the elongated hole. Within the range regulated by , the movable treadle bends while moving toward the upper end of the main frame to enter the wheelchair transport operation state, and from this state the movable treadle becomes horizontal. When the step is returned to its original position, the movable tread moves toward the lower end of the main frame relative to the step body. Therefore, the movable tread can keep the gap between the movable tread and the normal steps adjacent to the upper and lower ends of the main frame to a minimum during normal operation, transporting the wheelchair, and during movement between these. .

【Example】

An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. In FIGS. 1 to 4, the same reference numerals as in FIGS. 6 to 10 indicate corresponding parts, and 31 is provided at the upper corner on the upper end side of the main frame of the both sides of the sloped part 8 of the step 4 with a sloped part. These long holes 31. The inclined portion 8 is pivotally supported by the step body 7 by engaging pins 19 protruding from the inner surfaces of both sides of the step body 7 so as to be slidable in the front-rear direction. 32 is a riser 9a on both side plates of the inclined portion 8.
A cam hole 33 is a circular arc-shaped elongated hole formed nearby, and cam followers 33 are rollers pivoted on the inner surfaces of both sides of the step body 7. The cam 7 follower 33 is transferred to the cam hole 32. A cam structure 30 is configured with the cam hole 32 and the cam follower 33 as main constituent members. Note that the configuration of this embodiment other than those described above is the same as that of the conventional example shown in FIGS. 6 to 10. Next, the operation of this embodiment will be explained. During normal operation, when the steps 4 with slopes carry general passengers in the same way as the steps 3, the steps 4 with slopes have movable treads 9 located on the same horizontal plane as the horizontal treads 6, as shown in FIG. , the pin 19 provided in the step body 7 is located at the front end of the long hole 31 provided in the slope part 8, that is, the upper end side of the main frame, and the cam follower 33 provided in the step body 7 is located in the cam hole 32 provided in the slope part 8. It is located at the bottom. When changing from the above-described normal operating state to a wheelchair transporting state in which a wheelchair user is transported, the movable tread 9 of the inclined portion 8 bends as in the conventional case, but in this case, the cam follower 33
is guided to the cam hole 32, and the pin 19, which is the center of rotation, moves relative to the rear end of the elongated hole 31, that is, the lower end of the main frame, and the movable tread 9 moves toward the lower end of the main frame with respect to the main body 7 of the step 1. The lower end of the main frame is bent and bent low, as shown in Figure 2.
The cam follower 33 reaches the upper end of the cam hole 32, and the pin 19 reaches the upper end of the main frame of the elongated hole 31. That is, in the same way that the center of the pin 19 moves from point 24 to point 35 in FIG. Locus 21 in Figure 11
It moves along a trajectory similar to that of the previous model, and is positioned closer to the upper end of the main frame by a distance g134 compared to the conventional one. Therefore, the riser 9a does not interfere with the opposite end of the normal step adjacent to the lower end side of the main frame, and the upper end 21 of the movable tread 9 on the opposite riser side is between the opposite end of the normal step adjacent to the upper end side of the main frame. There is no need for the gap to become too large. Furthermore, after transporting the wheelchair and its user, the movable tread 9 is returned to the step body 7 from the bent state to the state where it is located on the same horizontal plane as the step body 7, as in the conventional case. On the other hand, it returns while moving toward the upper end of the main frame, and enters the normal operating state shown in FIG. 1. In this state, the riser 9a of the movable tread 9 can minimize the gap between it and the normal step adjacent to the lower end of the main frame. . In the above embodiment, the cam follower 33 has a roller pivotally connected to the step main body 7, but in the present invention, the shaft that slidably engages with the cam hole is fixed to the inner surface of both sides of the step main body. Good too. Further, in the above embodiment, the cam mechanism 30 was used, but in this invention, as shown in FIG.
The link mechanism is pivoted to the upper end of the intermediate part in the longitudinal direction of the inner surface of both ends of the step main body 7, and the lower end of the main frame of the link lever 37 is pivoted to the rear upper part of both side plates of the movable tread 9 by a shaft 39. 40
may also be used. Furthermore, in the present invention, a pin may be provided on the movable step board, and a long hole in which the pin engages may be provided in the step body.

【Effect of the invention】

As explained above, according to the present invention, the pin provided on one of the upper parts of the main frame of the inclined part of the step with an inclined part and the main frame of the step body is engaged and supported by the elongated hole provided in the other, and The part is supported on the step body by a cam mechanism or link mechanism, and the slope part is tilted by the cam mechanism or link a mechanism.The slope part moves toward the upper end of the main frame with respect to the step body during transport operation of the wheelchair, and during normal operation, the slope part is tilted. By making the part return to the lower end of the main frame with respect to the step body, the gap between both ends of the movable tread and the opposing end of the normal step adjacent to these can always be minimized, making it easy to place objects in the gap. There is no danger of
This has the effect of providing a highly safe passenger conveyor.

[Brief explanation of the drawing]

FIGS. 1 and 2 are side sectional views of the main parts of a passenger conveyor according to an embodiment of the present invention, with the inclined part in the inclined state and in the horizontal state, and FIGS. 3 and 4 show the inclined steps of the same inclined part. FIG. 5 is a side sectional view showing essential parts of a passenger conveyor according to another embodiment of the present invention; FIG.
Fig. 6 is a schematic side sectional view showing a conventional passenger conveyor, Figs. 7 and 8 are partial schematic side sectional views of the same wheelchair in the ascending and descending operating states, and Fig. 9 is the part shown in part ■ in Fig. 6. A side sectional view, FIG. 10 is a partial perspective view of the inclined portion in an inclined state, and FIG. 11 is an explanatory view of the operation of the inclined portion according to the conventional example and the invention of B. 1. Main frame, 2. Circulation path, 3. Normal steps, 4. Steps with sloped parts, 5. Step chains, 6.. Horizontal treads, 7. Step bodies, 8.
・Slope part, 9 Movable step board, 15 ・Operation mechanism, 16・
... Drive mechanism, 18 Wheelchair, 19 pin, 30... Cam iJ4.31... Long hole, 32. Cam 7L, 33 Cam follower, 37. Link lever, 40 - Link mechanism. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims] A large number of ordinary steps are connected in an endless manner and are operated in circulation in a circulation path provided in the main frame, and a slope is provided between these steps and operated in circulation together with the ordinary steps, and the lower end side of the main frame is sloped low. A step with an inclined part, in which a part is bently pivoted to a step main body, and a tread is provided on the inclined part and the step main body with the same length in the front and back direction, and the inclined part is inclined,
In the passenger conveyor equipped with an operating mechanism for returning the vehicle, a pin provided on one side of the upper end of the main frame of the inclined portion and the step body is engaged and supported in a long hole provided on the other side so as to be movable in the front and rear direction. A passenger conveyor characterized in that the inclined part is supported by the step body by a cam mechanism or a link mechanism that moves the inclined part toward the upper end of the main frame with respect to the step body as the inclined part inclines.