JPH0333742Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

This design functions as a step that can be used by general passengers at all times, but when necessary, two adjacent steps can be connected to create a tread with a large depth on which vehicles such as wheelchairs can be placed and transported. The present invention relates to an escalator device.

[Conventional technology]

Conventionally, as this type of escalator, for example, Japanese Patent Application No. 58-122107 (Japanese Unexamined Patent Publication No. 60-23283)
It is known in The vehicle passenger steps in such an escalator are a second type of steps provided in the middle of a large number of first type steps for general passengers that are arranged in succession along an endless circulation path.
It consists of a type step and a type 3 step adjacent to it, and the type 2 step is provided with a fork that advances and retreats toward the type 3 step, and the riser has an opening through which the fork passes. is formed. In addition, the third type step is equipped with a movable tread that moves up and down, and this movable tread is always held at the lower end, and when necessary, a fork is protruded to connect the movable tread of the second type step and the third type step. , which moves up and down with the treads on the same plane.

[Problem that the invention attempts to solve]

In the conventional escalator device as described above, during normal escalator operation in which the fork is retracted into the second type step and the movable tread of the third type step is held at the descending end, the riser that protrudes the fork is Because the opening is left open, when the second class step moves up and down along the circulation route, the toes of the shoes of passengers on the third class step may touch the riser of the second class step. If the toe of the shoe, etc. is in the opening of the riser when the riser is moved near the entrance, the toe of the shoe, etc. will be caught between the inner edge of the third type step and the opening. , there was a risk of unexpected accidents, such as injury to the tips of the toes. This invention was made to solve the above-mentioned problems, and its purpose is to provide an escalator device that closes the fork protruding opening of the riser during normal operation to prevent shoe tips, etc. from being inserted. do.

[Means to solve the problem]

The escalator according to this invention is configured such that at least the fork protruding portion of the riser of the step to which the fork is attached so as to be movable up and down can be moved up and down.

[Effect]

In this invention, at least the fork protruding part of the riser can be raised and lowered, so when necessary, the movable part is lowered to form a fork protruding opening, and in normal times, the movable part is raised to form a riser without a fork protruding opening. It becomes possible to do so.

【Example】

An embodiment of this invention is shown below in Figures 1 to 11.
The diagram will be explained. In the figure, 1 is the main frame of the escalator device arranged at an angle, and 2 is an endless circulation path mainly composed of rails, which will be described later, provided on the main frame 1.
An outgoing path 2a is formed on the top side of the main frame 1, an inverted portion 2b is formed on the end portion, and a return path 2c is formed on the bottom side. Reference numeral 3 denotes a large number of type 1 steps for general passengers arranged along the circulation path 2, each of these steps 3 having a shaft 3a and a front wheel 3 pivotally supported at both ends of the shaft 3a.
b, and a rear wheel 3c pivotally mounted on the opposite side of the shaft 3a. Reference numeral 31 denotes a second type step which is disposed between the first type steps 3 and is configured similarly to the first type steps 3 and has four in the circulation path 2.
1b, a rear wheel 31c, and the left and right ends of the riser 31R are provided with guide members 31d (see Fig. 4).
It is attached so that it can move up and down. Racks 31e, 31e are vertically fixed to both inner ends of the riser 31R, and pinions 31f, 31f are meshed with the racks 31e, 31e, respectively. pinion 31
f and 31f are integrally fixed to a shaft 31g which is rotatably supported in the width direction of the second type step 31, and a sprocket 31i is attached to the shaft 31g via a friction clutch 31h, and the sprocket 31i and the sprocket 31i, which will be described later, are attached to the shaft 31g via a friction clutch 31h. A chain 31k is wound between sprockets 31j attached to a shaft 41. Reference numeral 4 denotes a fork forward and backward movement mechanism installed in the second type step 31, which includes a shaft 41 whose longitudinal end is arranged in the width direction of the second type step 31 and is pivotally supported by the second type step 31, and a shaft 41 fixed to the shaft 41. Input body 42 consisting of a chain gear
A plurality of pin holes 42a spaced apart from each other on the circumference centered on the axis of the shaft 41 are bored in the side surface of the input body 42, and a bevel gear 43 is also integrally provided. . A shaft 44 is arranged vertically and pivotally supported by the second type step 31, and a bevel gear 44a that meshes with the bevel gear 43 is fixed to the lower end of this shaft. Reference numeral 45 indicates a spur gear fixed to the upper end of the shaft 44, and reference numerals 5 and 5 indicate a pair of arc-shaped forks arranged horizontally within the second type step 31, and the center of the arc is connected to the second type through the support arm 5b. The seed step 31 is pivotally mounted near both left and right ends so as to be horizontally rotatable, and a rack 5a that meshes with a spur gear 45 is formed on the outside of the arc. 45a is pivotally supported by a shaft erected on the second type step 31, and engages the spur gear 45 on one side and the rack 5a of the other fork 5 facing the second type step 31 on the other side. The spur gear 6 is a blocking mechanism, which is L-shaped and has a lever 6a whose curved part of the L-shape is pivotally connected to the second type step 31. A pin 6b that engages with the pin hole 42a is provided at one end of the pin 6b. A torsion spring 6c is provided at the pivot portion of the lever 6a, and urges the lever 6a in the direction in which the pin 6b fits into the pin hole 42a.
In addition, 6d is provided vertically on the second type step 31,
It is a rod that is held slidably in the vertical direction and whose upper end faces the other rotating end of the lever 6a on the side opposite to the pin 6b from below. Reference numeral 32 denotes a third type step adjacent to the second type step 31 and placed on the lower end side of the main frame 1. The third type step 32 is configured similarly to the first type step 3, is provided in the circulation path 2, and is connected to the shaft 3.
2a, a front wheel 32b, and a rear wheel 32c. 3
2d is the riser of the third type step 32, 32e is the third type
A standing wall fixed to the type step 32 and arranged along the riser 32d and across the gap 32f, 32g is a hole provided in the standing wall 32e, 32h is a movable tread of the third type step, and 32i is a movable tread of the movable tread 32h. The riser of the movable tread 32h is configured to hang down from one side and is disposed in a fitted state in the gap 32f, and the riser 32d
It is formed into a curved surface that does not create a gap between the inner surface of the 32j is an engagement hole provided in the riser 32i and arranged to correspond to the hole 32g, and 32k is an engagement hole 32l fixed to the back surface of the movable step plate 32h through which the tip 5c of the fork 5 is inserted. 7 is a locking mechanism provided on the third type step 32, 71 is a shaft of the locking mechanism 7 similar to the shaft 41, and 72 is the input body 42 fixed to the shaft 71.
72a is a pin hole similar to the pin hole 42a provided on the side surface of the input body 72.
Reference numeral 3 denotes a blocking mechanism similar to the blocking mechanism 6 described above, which is provided on the second type step 31, and includes a lever 73a and a pin 73.
b, a twist spring 73c, and a rod 73d. 74 is a spur gear fixed to the shaft 71 and arranged at both ends of the shaft 71; 75;
is fixed to the third type step 32 and has a channel steel shape with a lip in cross section, the groove opening is arranged downward, and is provided above the spur gear 74, and the guide whose longitudinal length is horizontally arranged. The body and guide body 76 are loosely fitted into the guide body 75 and the engagement hole 32j, and an engagement rod 8 is provided with a rack 76a on the lower surface that meshes with the spur gear 74 protruding from the opening of the groove of the guide body 75. A drive mechanism provided in the frame 1 and placed at the end of the outward path 2a,
81 is the frame of this, 81a is a guide rod erected from the frame 81, 82 is a lifting motor fixed to the frame 81 and has an output shaft made of a screw 82a, 83 is a movable frame of the drive mechanism 8, and 83a is this is fixed to the underside of the
A cylindrical engager 83b having a female thread corresponding to the screw 82a is fixed to the lower surface of the movable frame 83, and a guide body 84 is a cylindrical body into which the guide rod 81a is loosely fitted.
is a shaft provided at the end of the movable frame 83 along the length of the main frame 1, and whose axis line is arranged in the width direction of the main frame 1;
4a is a chain gear fixed to this shaft 84, and 84b is a chain gear 84a of the movable frame 83, which faces the chain gear 84a.
A chain gear 84c is pivotally connected to the end opposite to the 3
A drive band 84 consisting of a row roller chain, configured in an endless manner, and wound around chain gears 84a and 84b.
d is a support provided on the upper and lower surface of the drive band 84c, 84e is a support piece made of an elastic material that elastically supports the support 84d on the movable frame 83, and 85 is a drive provided on the movable frame 83 to drive the shaft 84. electric motor of mechanism 8;
9 is the first, second, and third class steps 3, 31, 32
are engaged with the shafts 3a, 31a, 32a of the circulation path 2.
A treadle chain 10 is fixed to the main frame 1 and arranged along the circulation path 2 to connect the front wheels 3b, 3.
A front wheel rail 11 that guides the wheels 1b and 32b is fixed to the main frame 1 and arranged along the circulation path 2 to guide the rear wheel 3.
Rear wheel rail guiding c, 31c, 32c, 12
Reference numeral 13 indicates a first detector consisting of a switch provided on the frame 81 to detect the retreat of the movable frame 83, 13 indicates a second detector consisting of a switch provided on the frame 81 and detects the rise of the movable frame 83, and 14 indicates an electric motor. A third detector is provided on the shaft of the electric motor 85 and is operated by the rotational speed of the electric motor 85, and consists of a switch that detects the amount of movement of the fork 5 and the engaging rod 76 in and out. In other words, between the first type steps 3 and the second type steps 31
A third type step 32 is placed on the lower end side of the main frame 1 of the second type step 31 and connected by a step chain 9. Normally, the fork 5 is held in the retracted position shown in FIG. 3, the movable frame 83 of the drive mechanism 8 is held in the retracted position, and the engagement rod 76 is engaged with the engagement hole 32j and the hole 32g, so that the movable step plate is 32h is held on the third type step, and the pins 6b and 73b of the blocking mechanisms 6 and 73 are held in the pin holes 4 of the input bodies 42 and 72.
2a and 72a, the movement of the forward and backward movement mechanism 4 and the lock mechanism 7 is prevented. In this state, a driving device (not shown) provided in the main frame 1 moves the first to third type steps 3, 31, 3 through the step chain 9.
2 is circulated through the circulation path 2. At this time, the front wheels 3b, 31b, 32b are moved by the front wheel rail 10,
Rear wheels 3c, 31c, 32 by rear wheel rail 11
c is guided, and the first to third type steps 3, 31, and 32 move horizontally at the end of the outbound route 2a, and move tilted while maintaining a horizontal attitude in the middle of the outbound route 2a, and in this state, general passengers are transported. Ru. On the other hand, when transporting a wheelchair user from the lower end of the main frame 1 to the upper end, for example, the following operation is performed. That is, the second and third type steps 31 and 32 are stopped at the horizontal movement point at the lower end of the outgoing path 2a, and
It is arranged in the state shown in FIGS. Next, when the lifting motor 82 is energized, the movable frame 83 is raised by the screw 82a, the lifting motor 82 is stopped by the operation of the second detector 13, and the drive band 84c is engaged with the input bodies 42, 72. do. Further, as the movable frame 83 rises, the rods 6d and 73d are pressed and lifted, so the levers 6a and 73a rotate and the pins 6c and 73d move upward.
b comes off from the pin holes 42a, 72a of the input bodies 42, 72. Next, the electric motor 85 is started and the drive band 84c runs through the chain gears 84a, 84b, the input body 42 rotates, and the bevel gears 43, 44
The forks 5, 5 are rotated in the direction of the arrow in FIG. 3 by the meshing of the spur gears 45, 45a and the rack 5a. At the same time, the rotation of the shaft 41 causes the sprocket 31j, the chain 31k, and the sprocket 31 to rotate.
i and the clutch 31h, and further rotates the pinions 31f, 31f, which lowers the riser 31R through the racks 31e, 31e that mesh with the pinions 31f, and lowers the forks 5, 5.
Open the position where it protrudes. At this time, the diameter of the driving side sprocket 31j is equal to that of the driven side sprocket 3.
1i, the rotation of the shaft 41 is accelerated and transmitted to the shaft 31g, so that the riser 31R reaches the lower end before the forks 5 collide with the riser 31R. will be reached. When the riser 31R reaches the lower end, the clutch 31h slips. On the other hand, as the forks 5, 5 rotate in the direction of the arrow, the second type step 31 is opened on the end surface 5c side.
It passes through the riser part and protrudes toward the third type step 32 side, and engages with the engagement piece 32k of the third type step 32, thereby joining the two together. Then, the electric motor 85 is stopped due to the operation of the third detector 14. Further, the input body 72 rotates due to the operation of the drive band 84c, and the engagement rod 76 is connected to the hole 32 via the spur gear 74 and the rack 76a.
g, it is withdrawn from the engagement hole 32j, and the engagement between the riser 32i and the vertical wall 32e is released, resulting in the state shown in FIGS. 9 and 10. Note that the elastically supported support 8
4d supports the upper side of the drive band 84c, so that the drive band 84c is smoothly engaged with the input bodies 42, 72. Then, from the state shown in FIGS. 9 and 10, the lifting motor 82 is reversely energized and the movable frame 83 is lowered. When the first detector 12 is pressed, the lifting motor 82 is stopped and the movable frame 83 is As a result of the lowering, the movement of the forward and backward movement mechanism 4 and the lock mechanism 7 is blocked by the blocking mechanisms 6 and 73. When the wheelchair is loaded into the space formed by the second and third type steps 31 and 32 and the escalator is operated,
As the second type step 31 shifts to the inclined movement, the movable step plate 32h supported by the fork 5 rises relative to the third type step 32, resulting in the state shown in FIG. 11. As a result, the loading space for the wheelchair is maintained horizontally, and the second and third class steps 31 and 32 are
When the escalator reaches the end of the box a, the escalator is stopped and the wheelchair is taken out. Next, the drive mechanism 8 provided at the upper end of the outward path 2a is raised to move the drive band 84c to the input bodies 42, 7.
2, and the electric motor 85 engages the forks 5, 5.
is retired and the connection with the third type step 32 is released. When the forks 5, 5 are retired in this way, at the beginning, the movement of the riser 31R is suppressed by the protruding forks 5, 5, so the clutch 31h slips first, and the forks 5, 5 are completely retired. When it is pulled into the second type step 31, the riser 31R moves upward and closes the protruding opening of the forks 5, 5. Also, the engagement rod 76
are fitted into the engagement hole 32j and the hole 32g, and the movable step board 32h is held on the third type step 32. after that,
The drive mechanism 8 is lowered and used for transporting general passengers. In this way, the wheelchair user can be transported without any problems, and since deep steps are not provided for loading the wheelchair, the main frame 1 can be easily tightened without increasing its size. That is, between the first type steps 3 that are continuously arranged and operated in a circular manner, there is a second type step 31 having a protrusively provided fork, and a second type step 31 that is adjacent to the second type step 31 and supported by the fork. Movable tread 3
A third type step 32 having a length of 2h is disposed, and a drive mechanism for protruding the fork through a displacement mechanism is provided at the forward end of the conveyance path. As a result, at the horizontal movement points of the second and third type steps,
The movable tread is supported by a fork, and the movable tread rises from the third type step as the second type step moves in incline, thereby maintaining the space for the wheelchair. Therefore, steps with special dimensions for wheelchairs should be provided. It is possible to transport a wheelchair user without any problems. Further, the second type step 3
Raise and lower riser 31R of 1, fork 5, 5
Since the opening from which the fork protrudes can be automatically opened and closed, during normal operation of the escalator, the tip of a shoe or the like does not get stuck in the fork protruding opening as in the past, making it possible to provide a highly safe escalator. In the above embodiment, the fork protruding opening is formed by raising and lowering the entire riser 31R of the second type step 31, but the fork 5,
A method may also be adopted in which a part of the riser 31R corresponding to the protruding position of No. 5 is made movable.

[Effect of the idea]

As described above, according to this invention, at least a part of the riser of the second type step on which a vehicle such as a wheelchair is placed and transported is configured to be able to be raised and lowered, and the fork in the second type step is moved to protrude. When connecting with a third type step, the movable part is lowered to form a protruding opening, and during normal operation, the movable part is raised to eliminate the fork protruding opening. To provide a safe escalator without the risk of the tips of shoes getting stuck in during operation.

[Brief explanation of drawings]

Figures 1 to 11 show an embodiment of the escalator device of this invention. Figure 1 is a schematic side view showing the entire escalator, Figure 2 is an enlarged view of a portion of Figure 1, and Figure 3 is a schematic side view showing the entire escalator. Figure 2 is the plan view, Figure 4 is the 2nd floor plan.
A sectional view taken along the - line in the figure, Figure 5 is the - line in Figure 2.
6 is a sectional view taken along the - line in Fig. 2, Fig. 7 is a sectional view taken along the - line in Fig. 2, and Fig. 8 is a sectional view taken along the - line in Figs. 5 and 6. , FIG. 9 is a diagram explaining the operation of the drive mechanism etc. in FIG. 2, FIG. 10 is a plan view of FIG. 9, and FIG. 11 is a diagram explaining the operation of the drive mechanism etc. in FIG.
In the figure, the second and third type steps are shown moving to the middle of the outward path of the circulation path. 1...Main frame, 2...Circulation route, 3...1st type steps, 31...2nd type steps, 32...3rd type steps,
31R...Riser, 31d...Guiding member, 31
e...Rack, 31f...Pinion, 31g...
Shaft, 31h...Clutch, 31i, 31j...Sprocket, 4...Fork forward and backward movement mechanism, 5...
Fork, 6... blocking mechanism, 7... locking mechanism,
8... Drive mechanism. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] Type 1 steps arranged in a large number connected along the endless circulation path of the main frame, type 2 steps installed in the middle of the type 1 steps and forming a vehicle passenger step, and type 3 steps adjacent thereto. The above-mentioned type 2 step is equipped with a step, and the second type step can be set by translating the built-in fork.
In an escalator device configured as a vehicle passenger step that moves up and down by combining a type step and a movable tread that is movable up and down on the type 3 step, the tread surface is the same surface. An escalator device characterized in that a part of the escalator is configured to be movable up and down to allow translation of the fork, and is provided with driving means for raising and lowering the movable part.