JP2002338178A - Escalator device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thin escalator device. SOLUTION: A front edge part of a footstep 4 is connected to a tip part of an arm member 5 connected to a chain 6, the torque is transmitted to a rear end part of the footstep 4 from an upper sprocket wheel 8 through a chain 23, when the footstep is transferred from an upward circulation area where users ride on the footstep to a downward circulation area free from the user, and the footstep is transferred onto an upper rotary supporting arm 20 rotated in synchronization with the upper sprocket wheel to be downwardly guided. When the footstep 4 is transferred from the downward circulation area to the upward circulation area, the torque is transmitted to the rear end part of the footstep 4 from a lower sprocket wheel 9 through a chain 13, and the footstep 4 is transferred to a lower rotary supporting arm 10 rotated in synchronization with the lower sprocket wheel to be lifted up. Accordingly, a ride face 4a of the footstep 4 can be horizontally kept and transferred.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an escalator device, and more particularly to a thin escalator device installed on a staircase.

[0002]

2. Description of the Related Art In a conventional escalator apparatus, a step travels upward with a loading surface in an upper circulation area where a user is mounted, and is inverted by an upper sprocket wheel to lower the circulation without the user being mounted. In the area, the vehicle is turned upside down and travels downward, and is circulated by being inverted again by the lower sprocket wheel.

[0003]

The above-mentioned conventional escalator device is thick because the step is turned upside down and travels. Therefore, there is a problem that a large-scale construction is required to install the conventional escalator device. Therefore, there is a demand for an escalator device that is mounted and installed on an existing staircase without performing large-scale construction. As described above, when the escalator device is installed on the existing stairs, there is a problem that the ceiling space is reduced by the thickness of the escalator device between the steps for transporting the user and the stairs. Therefore, a thin escalator device is desired. An object of the present invention is to provide a thin escalator device.

[0004]

SUMMARY OF THE INVENTION The present invention comprises a plurality of steps having a step board on which a user rides, a sprocket wheel disposed at an upper position and a lower position, and a pair of sprockets wound around the sprocket wheel. An endless annular chain, an arm member extending outwardly perpendicular to the direction in which the chain extends, a base end connected to the chain, and an end connected to one end of a step at the tip end, and synchronized with the sprocket wheel. And a rotation support arm that supports the other end of the step, and when the step moves from the upper circulation area where the user is mounted to the lower circulation area where the user is not mounted, the step is performed. The other end of the step moves onto the rotation support arm, is guided to the lower circulation area in synchronization with the sprocket wheel, and when the step moves from the lower circulation area to the upper circulation area, the other end of the step is rotated. Noriutsuri the over arm is the upper recirculation zone guided in synchronism with the sprocket wheel, a escalator apparatus characterized by circulating to face the multiplication Nomen upwards.

According to the present invention, one end of the step is connected to the tip of the arm member connected to the chain, and the step is moved from the upper circulation area where the user is mounted to the lower circulation area where the user is not mounted. When the step moves, the other end of the step moves onto the rotation support arm that rotates in synchronization with the sprocket wheel and is guided downward.When the step moves from the lower circulation area to the upper circulation area, The end is lifted up on a rotating support arm that rotates in synchronization with the sprocket wheel. Therefore, the step is not reversed by the upper and lower sprocket wheels, and the transition is performed while the loading surface is kept horizontal, so that the escalator device can be made thinner. Also, in the direction perpendicular to the extending direction of the chain, the base end of the arm member extending outward of the endless annular chain is connected to the chain and fixed, and the front end is rotatably connected to the step. One end of the step is shifted to the outside of the sprocket wheel so as to prevent collision between the front and rear tread plates.

Further, the present invention is characterized in that the rotation support arm is driven and rotated by a rotation driving force transmitted from a sprocket wheel.

According to the present invention, the rotation of the rotation supporting arm is transmitted from the sprocket wheel by, for example, a chain, a crank, a gear, or the like, so that the sprocket driving the chain to which one end of the step is connected. The wheel and the rotation support arm that supports the other end of the step can be rotated synchronously. Therefore, it is not necessary to separately provide a drive unit such as a motor for driving the rotation support arm.

According to the present invention, the step has, at the other end, a projecting portion projecting to both sides of the step, and the rotation support arm supports the projecting portion to move the step from the upper circulation area. A transition is made from the lower circulation area and the lower circulation area to the upper circulation area.

According to the present invention, the other end of the step has a protrusion protruding on both sides in a direction perpendicular to the traveling direction of the step, for example, a support shaft and a support roller of the step.
When the step shifts from the upper circulation area to the lower circulation area and from the lower circulation area to the upper circulation area, since the protrusion is supported by the rotation support arm, the rotation support arm is arranged on both sides of the step, Steps can be supported from both sides,
The transition can be performed stably.

[0010]

FIG. 1 is a view showing the structure of an escalator device 1 according to an embodiment of the present invention. The escalator device 1 according to the present embodiment is a thin escalator device which is installed in a building and mounted on a stair 40 provided from an upper floor 2 which is an upper position to a lower floor 3 which is a lower position. Used as

In the escalator device 1, a plurality of steps 4 are connected to a pair of endless annular chains 6 via arm members 5, and are circulated by a motor 7. A pair of upper sprocket wheels 8 that are individually supported on the upper floor 2 are arranged at predetermined intervals in the width direction of the escalator device 1 (a direction perpendicular to the paper surface of FIG. 1), and are separately provided on the lower floor 3. A pair of lower sprocket wheels 9 that are pivotally supported are arranged at predetermined intervals in the width direction of the escalator device 1. The chain 6 is wound around between the upper sprocket wheel 8 and the lower sprocket wheel 9, and the chain 6 is driven to circulate by the motor 7, so that the step 4 in the upper circulating area on which the user rides is moved to the lower floor. 3 rises to the upper floor 2. In the upper circulation area, the user rides on the step 4 and is transported.

In the lower transition region where the step 4 shifts from the upper circulation region to the lower circulation region where no user is mounted, the step 4
Does not turn over and shifts with the mounting surface 4a on which the user is mounted facing upward. Also in the lower circulation area, the vehicle descends with the mounting surface 4a facing upward, and when the step 4 reaches the lower floor 3, the state shifts from the lower circulation area to the upper circulation area. Also in the upper transition region in which the step 4 transitions from the lower circulation region to the upper circulation region, the transition is made with the mounting surface 4a facing upward. As described above, in the escalator device 1 of the present invention, the escalator device 1 can be made thinner by circulating and driving the mounting surface 4a always facing upward.

Next, a method of driving the escalator device 1 will be described. The motor 7 has an upper sprocket wheel 8
Is driven to circulate the chain 6.
One end on the front side (right side in FIG. 1) of the step 4 is a front end,
One end on the rear (left side in FIG. 1) side is a rear end, and each step 4
A chain 6 is connected to both ends in the width direction of the front end of the pair of arms via arm members 5, respectively.
Is wound around a pair of upper sprocket wheels 8. Since the step 4 passes between the pair of upper sprocket wheels 8 and transitions from the upper circulation region to the lower circulation region, no rotary shaft is provided between the pair of upper sprocket wheels 8. To achieve such a configuration, an intermediate shaft 81 is disposed between the motor 7 and the sprocket wheel 8, and the pair of upper sprocket wheels 8 is driven via the intermediate shaft 81.

More specifically, the intermediate shaft 81 extends in the width direction of the escalator device 1, and the intermediate sprocket wheel 82 is fixed on both sides and is rotatably supported.
A chain 84 is wound around the intermediate sprocket wheel 82 and a small sprocket wheel 83 which is arranged on the outer side in the width direction of the upper sprocket wheel 8 and is fixed to the rotation shaft of the upper sprocket wheel 8. Accordingly, when the rotation transmission sprocket wheel 86 fixed to the intermediate portion of the intermediate shaft 81 is rotationally driven by the motor 7 via the chain 85, the intermediate shaft 81 is rotationally driven, and the intermediate sprocket wheels 82 on both sides of the intermediate shaft 81, A pair of upper sprocket wheels 8 are rotationally driven via a chain 84 and a small sprocket wheel 83. Thus, a pair of upper sprocket wheels 8
It can be circulated through the step 4 in between.

In this embodiment, the rotational driving force of the intermediate shaft 81 is transmitted to the upper sprocket wheel 8 using the chain 84, but the rotational driving force of the intermediate shaft 81 is transmitted using the gears. It may be transmitted to.

Next, the configuration of the end of the escalator device 1 will be described in more detail. FIG. 2 is a partial plan view of an end of the escalator device 1 on the lower floor 3 side, and FIG. 3 is an end of the escalator device 1 on the lower floor 3 side, where the step 4 shifts from the lower circulation region to the upper circulation region. FIG. The step 4 is formed by integrally forming a rectangular plate-like step plate 4b having a mounting surface 4a and a riser 4c. The riser 4c is provided to hang downward from the rear end of the step board 4b. The step 4 moves in the upper circulation area where the user is mounted while keeping the mounting surface 4a horizontal. The step 4 has a support shaft 41 projecting in the width direction of the step 4 at a front end and a rear end.
42. The support shaft 41 at the front end extends from the front end of the tread plate 4b, and the support shaft 42 at the rear end extends from the lower end of the riser 4c. A first support roller 43 is attached to an end of the support shaft 41 in the width direction so as to be rotatable around the axis of the support shaft 41. A second support roller 44 is attached to an end of the support shaft 42 in the width direction so as to be rotatable around the axis of the support shaft 42.

The arm member 5 is connected to the chain 6 at a predetermined interval. The arm member 5 is a member that extends in a direction perpendicular to the direction in which the chain 6 extends, and has a base end fixed to the chain 6 and protrudes outward. In addition, a support shaft 41 between the tread plate 4 b of the step 4 and the first support roller 43 penetrates and is rotatably connected to the tip end of the arm member 5. With such a configuration, the support shaft 41 at the front end of the step 4 moves away from the upper sprocket wheel 8 so that the collision of the front and rear tread plates 4 in the downward transition region can be prevented.

Further, in the escalator device 1 of the present embodiment, the first support roller 43 and the second support roller 44 of the step in the upper circulation area and the lower circulation area have the first movement path.
A support roller guide rail 45 and a second support roller guide rail 46 are provided. In the upper circulation area and the lower circulation area, the first and second support rollers are guided by the first and second support roller guide rails, respectively, so that the step 4 can stably circulate along the stairs 40. . The first support roller 43 and the second support roller 4
Since the chain 4 and the chain 6 are displaced in the width direction of the step 4, the paths do not collide.

The lower floor 3 of the lower sprocket wheel 9
On the side (the left side in FIG. 1), a pair of lower rotation support arms 10 is provided. The lower rotation support arm 10 is a rod-shaped member, and has a rotating shaft 10 </ b> A that extends outward in the width direction of the escalator device 1 at one end, and has a predetermined interval in the width direction of the escalator device 1 like the lower sprocket wheel 9. Provided. The lower rotation support arm 10 is arranged inside the lower sprocket wheel 9 in the width direction. The rotation shafts 10 </ b> A of the pair of lower rotation support arms 10 are individually rotatably supported at both ends in the width direction of the escalator device 1. The length of the rotation support arm 10 from the rotation axis 10 </ b> A to the tip is longer than the sum of the radius of the lower sprocket wheel 9 and the length of the arm member 5. As a result, the support shaft 42 can move onto the lower rotation support arm. Further, in the escalator device 1 of the present embodiment, the end of the second support roller guide rail 46 in the upper circulation area is bent downward with a curvature so as to be along the movement path of the second support roller 44, and the lower circulation area The end of the second support roller guide rail 46 is bent upward with a curvature so as to follow the movement path of the second support roller 44. by this,
The transfer to the lower rotation support arm 10 of the support shaft 42 can be performed more smoothly.

A small sprocket wheel 11 is fixed to a rotation shaft 10A of the lower rotation support arm 10. A small sprocket wheel 12 having the same diameter as the small sprocket wheel 11 is also fixed to a rotation shaft on the outer side in the width direction of the lower sprocket wheel 9, and a small sprocket wheel 12 of the lower sprocket wheel 9 and a small sprocket of the lower rotation support arm 10. A chain 13 is wound around the wheel 11. As a result, the rotational force is transmitted from the lower sprocket wheel 9, and the lower sprocket wheel 9 and the lower rotation support arm 10 rotate synchronously at the same speed and in the same direction (the direction of arrow A in FIG. 3).

In the present embodiment, the lower sprocket wheel 9 and the rotation support arm 10 are synchronously rotated by the chain 13, but may be synchronously rotated by a gear or by a belt via a pulley. Or may be synchronously rotated by a crankshaft. The lower rotation support arm 10 has a rotation shaft 10A.
And an L-shaped member.

Next, the transition operation of the step 4 in the upward transition region will be described. When the front end of the step 4 reaches the lower end of the lower sprocket wheel 9, that is, when the step 4 reaches the lower end of the upper transition area, the rear end of the step 4 is moved outward in the width direction of the step 4. The projecting support shaft 42 comes into contact with the tip of the lower rotation support arm 10. Thereafter, the sprocket wheel is rotated, and the lower rotation support arm 10 is rotated in synchronization with the rotation of the sprocket wheel, so that the support shaft 42 moves to the tip of the lower rotation support arm 10 on the downstream side in the rotation direction. In the present embodiment, the support shaft 42 of the step 4 moves on to the lower rotation support arm 10, but the second support roller 44 may move on to the lower rotation support arm 10. When the second support roller 44 moves onto the lower rotation support arm 10, the friction generated between the second support roller 44 and the lower rotation support arm 10 is reduced, and the transition of the step 4 in the upper transition region is performed more smoothly.

The lower rotation support arm 10 is also provided on the upper floor 2 side.
An upper rotation support arm 20 having the same shape as that of FIG. The upper rotation support arm 20 is disposed near the lower floor 3 side of the upper sprocket wheel 8. The upper rotation support arm 20 is
A rotating shaft 2 extending at one end in the width direction of the escalator device 1
0A, and are provided at predetermined intervals in the width direction of the escalator device 1 like the upper sprocket wheel 8. The upper rotation support arm 20 is arranged inside the upper sprocket wheel 8 in the width direction. The rotation shaft 20 </ b> A of the upper rotation support arm 20 is rotatably supported individually at the width direction end of the escalator device 1. In addition, the rotation support arm 20
Is longer than the sum of the radius of the upper sprocket wheel 8 and the length of the arm member 5.

A small sprocket wheel 21 is fixed to a rotation shaft 20A of the upper rotation support arm 20. A small sprocket wheel 22 having the same diameter as the small sprocket wheel 21 is also fixed to the rotation axis of the upper sprocket wheel 8 outward in the width direction, and the small sprocket wheel 22 of the upper sprocket wheel 8 and the small sprocket wheel A chain 23 is wound around the sprocket wheel 21. As a result, the rotational force is transmitted from the upper sprocket wheel 8, and the upper sprocket wheel 8 and the upper rotation support arm 20 are synchronously rotated at the same speed and in the same direction.

Next, the operation when the step 4 moves downward will be described. When the front end of the step 4 reaches the upper end of the upper sprocket wheel 8, that is, when the step 4 reaches the upper end of the downward transition region, the support shaft 42 protruding outward in the width direction from the other end of the step 4. Contact the tip of the upper rotation support arm 20. Thereafter, the sprocket wheel rotates and the lower rotation support arm 10 rotates in synchronization with the rotation of the sprocket wheel, whereby the support shaft 42 moves to the tip of the lower rotation support arm 10 on the upstream side in the rotation direction. In the present embodiment, the support shaft 42 of the step 4 moves on the upper rotation support arm 20, but the second support roller 44 may move on the upper rotation support arm 20. Second support roller 4
By the transfer of the step 4 to the upper rotation support arm 20, the friction generated between the upper rotation support arm 20 and the upper rotation support arm 20 is reduced, and the transition of the step 4 in the lower transition region is performed more smoothly.

As described above, the rear end of the step 4 is supported by the upper rotation support arm 20 and the lower rotation support arm 10 in the upper transition area and the lower transition area, so that the step 4 moves the mounting surface horizontally. It is possible to shift while maintaining the state.

The escalator device 1 of the present embodiment is an up escalator, but can be used as a down escalator by reversing the circulation direction of the step 4. In addition to installing on the stairs as well as shaving and installing the stairs, the area for removing the ground and the stairs to fill the escalator device 1 can be reduced, and the construction period for the installation is reduced. Can be shorter.

In another embodiment of the present invention, as shown in FIG. 4A, a recess 30 is formed on the downstream side of the tip of the lower rotation support arm 10 in the rotation direction. The step 4 may be shifted from the lower circulation area to the upper circulation area by fitting the support shaft 42 or the second support roller 44 at the rear end. When the lower rotation support arm 10 has such a shape, the step 4 can be reliably captured and supported.
Further, as shown in FIG. 4B, a recess 31 is formed on the upstream side in the rotation direction of the upper rotation support arm 11 that supports the step 4 when shifting from the upper circulation region to the upper circulation region. The support shaft 42 or the second support roller at the rear end of the step 4 is fitted to the step 4, and the step 4 is shifted from the upper circulation area to the lower circulation area, whereby the step 4 is reliably captured and supported. be able to. This embodiment can be applied to an upward escalator, and a rotation support arm having a recess formed on the downstream side in the rotation direction as shown in FIG. 4B is used as a lower rotation support arm, and a rotation support arm as shown in FIG. By using the rotation support arm having the concave portion on the side as the upper rotation support arm, it can be applied to a down escalator.

FIG. 5 is a schematic perspective view showing the lower floor side end of an escalator device 50 according to still another embodiment of the present invention. In FIG. 5, the same members as those of the escalator device 1 of the embodiment are denoted by the same reference numerals, and the description thereof will be omitted. In FIG. 5, in order to prevent the figure from being complicated,
The first and second support rollers and the first and second support roller guide rails are omitted. In the escalator device 50 of the present embodiment, as shown in FIG. 5, a support portion 51 is provided on the support shaft 42 at the rear end of the step 4. FIG. 6 is a side view showing the vicinity of the support portion 52. The support portion 51 is a member having a semicircular cross section in the longitudinal direction of the escalator device 50, and is fixed to the support shaft 42 between the step 4 and the second rotation support roller 44. By providing such a member, an allowable amount such as displacement when the lower rotation support arm 10 supports the rear end of the step 4 is increased. In the present embodiment, the support portion 51 has a semi-cylindrical shape, but may have a plate shape.
It may be a polygonal pillar, a cylinder or an ellipse. In the present embodiment, only the lower floor side is shown, but the upper floor side has the same configuration.

In still another embodiment of the present invention, the rear end of the step plate 4a, that is, the upper end of the riser 4b is provided with the step plate 4a.
a, which is supported by the upper and lower rotation support arms 10 and 11, so that the step 4 moves from the upper circulation area to the lower circulation area and from the lower circulation area to the upper circulation area. May be transferred.

In still another embodiment of the present invention, a protrusion other than the support shaft 42 is provided at both ends of the step 4 at the rear end of the step 4, and the protrusion is supported by the rotation support arm. Is also good.

[0032]

As described above, according to the present invention, one side of the step is connected to the chain via the arm member, and the step is moved from the upper circulation area to the lower circulation area and from the lower circulation area to the upper circulation area. At the time of shifting, the other side of the step is supported by the rotation support arm, so that it is possible to shift with a simple configuration while keeping the mounting surface of the step horizontal. Therefore,
The escalator device can be made thinner.

Further, according to the present invention, since the rotation supporting arm is driven and rotated by the rotation driving force transmitted from the sprocket wheel, it is not necessary to separately provide a motor for rotating and driving the rotation supporting arm. Reduction can be achieved.

Further, according to the present invention, since the projecting portion projecting in the width direction of the step is supported by the rotation support arm,
The rotation support arms are arranged on both sides of the step, so that the step can be supported from both sides, and the transition can be performed stably.

[Brief description of the drawings]

FIG. 1 is a diagram showing a structure of an escalator device 1 according to an embodiment of the present invention.

FIG. 2 is a plan view showing a configuration on a lower floor 2 side of the escalator device 1;

FIG. 3 is a diagram for explaining the operation of the step 4 on the lower floor 3 side of the escalator device 1;

FIG. 4A is a view showing a shape of a lower rotation support arm according to another embodiment of the present invention, and FIG.
FIG. 8 is a view showing a shape of an upper rotation support arm according to another embodiment of the present invention.

FIG. 5 is a perspective view of a lower floor 3 side of an escalator device 50 according to still another embodiment of the present invention.

FIG. 6 is a side view showing the vicinity of a support portion 51.

[Description of Signs] 1 Escalator device 4 Step 5 Arm member 6 Chain 8 Upper sprocket wheel 9 Lower sprocket wheel 10 Lower rotation support arm 11 Upper rotation support arm 41, 42 Support shaft

Claims (3)

[Claims] 1. A plurality of steps having a step board on which a user rides, a sprocket wheel arranged at an upper position and a lower position, a pair of endless annular chains wound around the sprocket wheel, and the chain An arm member extending outwardly perpendicular to the extending direction of the step, the base end is connected to the chain, and the one end of the step is connected to the tip, and the arm rotates in synchronization with the sprocket wheel, and A rotation support arm for supporting the other end, wherein when the step moves from the upper circulation area where the user is mounted to the lower circulation area where the user is not mounted, the other end of the step is rotatably supported. When the step is transferred to the lower circulation area in synchronization with the sprocket wheel and the step moves from the lower circulation area to the upper circulation area, the other end of the step moves to the rotation support arm and Is upper circular region guided in synchronization with the socket wheel, escalator apparatus characterized by circulating to face the multiplication Nomen upwards. 2. The escalator device according to claim 1, wherein the rotation support arm is driven and rotated by a rotation driving force transmitted from a sprocket wheel. 3. The step has, at the other end thereof, a protrusion projecting from both sides of the step, and the rotation support arm supports the protrusion and moves the step from an upper circulation region to a lower circulation region. The escalator device according to claim 1, wherein the escalator is shifted from the lower circulation region to the upper circulation region.