JPH0948571A - Hydraulic elevator device for pedestrian bridge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To get off with a small desired area of a bridge pier place by providing a hydraulic jack whose longitude is arranged along the longitude of a dridge body and a main cable for elevating a car whose one end side is wound to a fixed pulley engaged with the lower part of a cage and extended along the longitude of the hydraulic jack and whose other end side is engaged with the hydraulic jack. SOLUTION: A hydraulic jack 17 is extended and a jack pulley 22 is moved by the guide of a jack rail 20. The cage 4 is lifted through a main cable 24 and oil pressure is discharged from the hydraulic jack 17 and lowered by the own weight of the cage 4. As the hydraulic jack 17 is arranged on the side surface of the bridge body 15 along the longitude, the sectional area of an elevating road 1 can be reduced. Therefore, the desired area of the bridge pier 14 place of a footbridge is reduced and a pedestrian brige elevator can be installed easily.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pedestrian hydraulic elevator system which is driven between a road surface and a pedestrian surface of a pedestrian bridge.

[0002]

2. Description of the Related Art FIG. 10 is a longitudinal sectional view of a conventional hydraulic elevator system disclosed in, for example, Japanese Patent Laid-Open No. 3-8686. In the figure, 1 is a hoistway, 2 is a car rail standing upright in the hoistway 1, 3 is a fixed body made of a beam arranged near the upper end of the hoistway 1, and 4 is guided by the car rail 2 to ascend and descend. The car 5 is a car pulley pivotally attached to the bottom of the car 4,
Reference numeral 6 denotes a shock absorber which is erected on the bottom surface of the hoistway 1 and is arranged so as to face the car 4.

Reference numeral 7 is a jack stand provided on the bottom surface of the hoistway 1, 8 is a hydraulic jack standing upright from the jack stand 7, and 9 is a hydraulic jack.
Is a pulley base provided on the upper end of the plunger of the hydraulic jack 8, 10 is a jack rail fixed to the wall surface of the hoistway 1 and both ends of the pulley base 9 are movably engaged, and 11 is a pivot for the jack base 7. The stationary pulleys are attached, and the reference numerals 12 are two jack pulleys pivotally attached to the pulley base 9.

Reference numeral 13 is a main rope, one end of which is fixed to the fixed body 3 and extends downward, is wound around the car pulley 5 and extends upward, and is wound around one end of the jack pulley 12 and extends downward and is fixed. It is wound around the pulley 11 and extended upward, and it is wound around the other end of the jack pulley 12 and extended downward,
The other end is fixed to the jack base 7.

The conventional hydraulic elevator device is constructed as described above, and although not shown, hydraulic oil is supplied to the hydraulic jack 8 by a hydraulic drive device including a hydraulic power unit, a control device, etc., and the hydraulic jack 8 is extended. Then, the jack pulley 12 is guided by the jack rail 10 via the pulley base 9 and ascends. Then, through the main rope 13, the car 4
Is driven up. Further, when the hydraulic oil is discharged from the hydraulic jack 8, the weight of the car 4 causes the car 4 to move down by an operation opposite to that when the car 4 moves up.

[0006]

When the conventional hydraulic elevator system as described above is installed as a pedestrian hydraulic elevator system, since the hydraulic jack 8 is provided in the hoistway 1, the hoistway 1 is traversed. The area becomes large.
Therefore, there is a problem that the required land area of the pier portion of the pedestrian bridge increases, which becomes a constraint factor for installing the elevator for the pedestrian bridge.

The present invention has been made to solve the above problems, and an object of the present invention is to obtain a pedestrian hydraulic elevator system which can be installed easily because the required land area of the pier portion of the pedestrian bridge is small.

[0008]

In a hydraulic elevator device for a pedestrian bridge according to the present invention, a pedestrian bridge consisting of a bridge body whose both ends are supported by piers and which crosses a road, and a hoistway provided along the pier are lifted and lowered. Then, whether to stop at the position corresponding to the road surface and the walking surface of the bridge body, the hydraulic jack provided on the bridge body and the long side is arranged along the length of the bridge body, and one end side is engaged with the lower side of the car. It is extended upward and is wound around a stationary pulley pivotally attached to the fixed part of the pedestrian bridge and extended along the length of the hydraulic jack.The other end is engaged with the hydraulic jack and driven by the operation of the hydraulic jack. And a main rope for moving up and down.

Further, in the pedestrian hydraulic elevator apparatus according to the present invention, the pedestrian bridge consisting of a bridge body whose both ends are supported by the piers and which crosses the road, and the hoistway provided along the piers are raised and lowered, Whether the car stops at a position corresponding to the walking surface of the bridge, a hydraulic jack is provided on the bridge and the length is arranged along the length of the bridge, and one end is fixed to the upper part of the hoistway and extended downward. It is wound around a car pulley pivotally attached to the lower part of the car and extends upward, and it is extended along the length of the hydraulic jack and is wound around a stationary pulley pivotally attached to the fixed part of the pedestrian bridge. There is provided a main rope which is wound around a jack pulley pivotally attached to an end portion and is fixed at the other end to a fixed portion of a pedestrian bridge, and which is driven by an operation of a hydraulic jack to raise and lower a car.

Further, in the pedestrian hydraulic elevator system according to the present invention, the pedestrian bridge consisting of a bridge body whose both ends are supported by the piers and which crosses the road, and the hoistway provided along the piers are moved up and down, The car is stopped at a position corresponding to the walking surface of the bridge, and a hydraulic jack is installed on the bridge and the length is arranged along the length of the bridge, and one end is fixed to a rope stopper installed at the bottom of the car. It is extended upwards and is wound around a stationary pulley that is pivotally attached to the fixed part of the pedestrian bridge, extended along the length of the hydraulic jack, and wrapped around the jack pulley that is pivotally attached to the longitudinal end of the hydraulic jack. The other end is fixed to the fixed part of the pedestrian bridge and is provided with a main rope which is driven by the operation of the hydraulic jack to raise and lower the car.

Further, in the pedestrian hydraulic elevator system according to the present invention, whether the entrance / exit direction is provided along the longitudinal direction of the bridge body or below the stationary pulley and the main rope direction is set. A direction change stationary pulley is provided that changes direction along the length of the body.

Further, in the hydraulic elevator device for a pedestrian bridge according to the present invention, a bridge body provided with an opening for maintenance work on the walking surface and a bridge provided on the lower surface of the bridge body and arranged to face the opening. Hydraulic drive device is provided.

Further, in the hydraulic elevator device for a footbridge according to the present invention, a scaffolding plate disposed under the hydraulic drive device and installed corresponding to the hydraulic jack and the hydraulic drive device location, and all of the scaffolding plates. A side wall is provided continuously around the circumference to prevent a leaked oil from flowing down from the hydraulic jack and the hydraulic drive device.

In the pedestrian hydraulic elevator system constructed as described above, since the hydraulic jacks are provided along the bridge body, the cross-sectional area of the hoistway is reduced and the required land area of the bridge piers is reduced.

In the pedestrian bridge hydraulic elevator system constructed as described above, the car is driven by the hydraulic jack through the main ropes wound around the car pulley and the jack pulley. Further, since the hydraulic jack is provided along the bridge body, the cross-sectional area of the hoistway is reduced and the required land area of the pier portion is reduced.

In the pedestrian bridge hydraulic elevator apparatus constructed as described above, the car is driven by the hydraulic jack via the main rope fixed to the car and wound around the jack pulley. Further, since the hydraulic jack is provided along the bridge body, the cross-sectional area of the hoistway is reduced and the required land area of the pier portion is reduced.

Further, in the pedestrian bridge hydraulic elevator device constructed as described above, the entrance and exit directions of the cage are arranged along the longitudinal direction of the bridge body, and the direction-changing stationary pulley causes the direction of the main ropes to change. Converted in the direction along the length of the body. Further, since the hydraulic jack is provided along the bridge body, the cross-sectional area of the hoistway is reduced and the required land area of the pier portion is reduced.

In the pedestrian bridge hydraulic elevator apparatus constructed as described above, an opening for maintenance work is provided on the walking surface of the bridge, and a hydraulic drive unit is provided on the lower surface of the bridge facing the opening. It is provided. Further, since the hydraulic jack is provided along the bridge body, the cross-sectional area of the hoistway is reduced and the required land area of the pier portion is reduced.

Further, in the hydraulic elevator device for a footbridge constructed as described above, the scaffolding plate is installed under the hydraulic jack and the hydraulic drive device, and the side wall provided continuously over the entire circumference of the scaffolding plate causes hydraulic pressure. The leakage of the leaked oil from the jack and the hydraulic drive device is prevented. Further, since the hydraulic jack is provided along the bridge body, the cross-sectional area of the hoistway is reduced and the required land area of the pier portion is reduced.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. 1 and 2 are views showing an embodiment of the present invention, in which FIG. 1 is a front view of a pedestrian bridge and a vertical view of a hydraulic elevator. FIG. 2 is an enlarged plan view around the hydraulic elevator in FIG. In the figure, 1 is a hoistway composed of members of piers 14 arranged on both sides of a road composed of roadways and standing upright from each other, and 15 is a pier 14
A bridge body whose both ends are supported by and crosses the road, 2 is a car rail erected in the hoistway 1, and 3 is a fixed body composed of a rope stopper arranged near the upper end of the hoistway 1.

4 is a car that is guided up and down by the car rail 2; 5 is a car pulley that is pivotally attached to the lower part of the car 4; and 6 is standing on the bottom surface of the hoistway 1 and arranged to face the car 4. A shock absorber, 16 is a jack stand provided on the longitudinal side surface of the bridge 15, and 17 is a hydraulic jack mounted on the jack stand 16, the length of which is arranged along the length of the bridge 15. 1
Reference numeral 8 denotes a pulley stand provided at the tip of the plunger of the hydraulic jack 16 and provided with a guide tool 19.

Reference numeral 20 denotes a jack rail, which is provided on the longitudinal side surface of the bridge body 15 and is arranged along the movement path of the pulley base 18 so that the guide tool 19 is movably engaged. Reference numeral 21 denotes a jack stationary pulley pivotally attached to the tip of the cylinder of the hydraulic jack 17 on the side opposite to the plunger, 22 is two jack pulleys pivotally attached to the pulley base 18, and 23 is a fixed portion near the walking surface of the bridge 15. It is a stationary pulley that is pivotally attached.

Reference numeral 24 is a main rope, one end of which is fixed to the fixed body 3 and extends downward, is wound around the car pulley 5 and then is wound around the stationary pulley 23 and is extended along the length of the hydraulic jack 17. It is wound around one side of the jack pulley 22 and extends along the length of the hydraulic jack 17, and is wrapped around the jack stationary pulley 21 and extends along the length of the hydraulic jack 17 and is wrapped around the other side of the jack pulley 22. And the other end extended along the length of the hydraulic jack 17 and the other end provided on the bridge 15 near the stationary jack pulley 21.
5, that is, fixed to the fixed portion.

Reference numeral 26 is an upper hall provided on the hoistway 1 and arranged at a position corresponding to the walking surface of the bridge 15, 27 is a lower hall provided on the hoistway 1 and arranged at a position corresponding to the road surface, 28
Is a staircase provided between the end of the walking surface of the bridge 15 and the sidewalk surface of the road, 29 is a machine room provided under the staircase, 3
Reference numeral 0 is a hydraulic drive unit including a hydraulic power unit provided in the machine room 29, a control device, and the like, and 31 is a hydraulic jack 17
And a hydraulic drive device 30.

In the pedestrian bridge hydraulic elevator device constructed as described above, hydraulic oil is supplied to the hydraulic jack 17 by the hydraulic drive device 30 to extend the hydraulic jack 17, and the jack pulley 22 is jacked by the jack pulley 22 via the pulley base 18. It is guided by the rail 20 and moves. Then, the car 4 is driven up through the main rope 24. Also, the hydraulic jack 17
When the pressure oil is discharged from the car 4, the weight of the car 4 causes the car 4 to move downward due to the reverse operation of the ascending operation.

In the above structure, since the hydraulic jack 17 is arranged along the longitudinal side surface of the bridge 15, the cross-sectional area of the hoistway 1 can be reduced. For this reason, the required floor space at 14 piers of the footbridge is reduced, and the footbridge elevator can be easily installed. Further, since the hydraulic jack 17 is installed on the side surface of the bridge 15, the bridge 1
5 There is no protrusion from the lower surface, and the space up to the lower surface of the bridge 15 can be effectively used.

Embodiment 2 FIG. 3 and 4 are views showing another embodiment of the present invention, and FIG. 3 is a front view of a pedestrian bridge and a view showing a hydraulic elevator in a vertical section. FIG. 4 is an enlarged plan view around the hydraulic elevator in FIG. In the figure, the same reference numerals as those in FIGS. 1 and 2 indicate corresponding parts, and 32 is a rope stopper provided at the bottom of the car 4.

Reference numeral 24 is a main rope, one end of which is fixed to a rope stopper 32 and extended upward to be wound around a stationary pulley 23, and which is extended along the length of the hydraulic jack 17 and wound around a jack pulley 22. The hydraulic jack 17 is extended along the length thereof, and the other end is fixed to a rope stopper 25 provided on the bridge 15 near the stationary pulley 23, that is, a fixed portion.

In the pedestrian bridge hydraulic elevator device constructed as described above, hydraulic oil is supplied to the hydraulic jack 17 by the hydraulic drive device 30 to extend the hydraulic jack 17, and the jack pulley 22 is jacked by the jack pulley 22 via the pulley base 18. It is guided by the rail 20 and moves. Then, the car 4 is driven up through the main rope 24. Also, the hydraulic jack 17
When the pressure oil is discharged from the car 4, the weight of the car 4 causes the car 4 to move downward due to the reverse operation of the ascending operation.

Also in the above configuration, the hydraulic jack 17
Are arranged along the longitudinal sides of the bridge 15, so that the cross-sectional area of the hoistway 1 can be reduced. Therefore, although detailed description is omitted, it is clear that the same effects as those of the embodiments of FIGS. 1 and 2 can be obtained in the embodiments of FIGS. 3 and 4.

Further, in the embodiment shown in FIGS. 3 and 4, since the number of pulleys around which the main rope 14 is wound is small, high transmission efficiency of driving force can be obtained. Further, the required length of the main rope 14 is short, and the manufacturing cost can be reduced. Further, the number of refraction of the main rope 14 due to the pulley is small, the life of the main rope 14 is extended, and the maintenance cost can be reduced.

Example 3. FIG. 5 is also an enlarged plan view around a hydraulic elevator showing another embodiment of the present invention and is a partially cutaway view corresponding to FIG. 2 described above. A hydraulic elevator system for pedestrian bridges is constructed in the same manner as in. In the figure, the same reference numerals as those in FIGS. 1 and 2 indicate corresponding parts, and 4 is a car installed in a direction in which the entrance / exit of the entrance / exit is along the length of the bridge 15 as shown in FIG.

Reference numeral 17 denotes a hydraulic jack, which is arranged along the length of the bridge body 15 and is attached to the lower surface of the bridge body 15. Reference numeral 33 denotes a direction-changing stationary pulley that is pivotally attached to a fixed portion of the bridge 15 near the walking surface, and has a rotation axis line that is orthogonal to the longitudinal direction of the bridge 15 and that is positioned below the stationary pulley 23. .

Reference numeral 24 is a main rope, one end of which is fixed to the fixed body 3 and extends downward, and is wound around the car pulley 5 and then around the stationary pulley 23 and around the direction changing stationary pulley 33. The direction is changed along the longitudinal direction of the body 15. Then, it extends along the length of the hydraulic jack 17, is wound around one side of the jack pulley 22 and extends along the length of the hydraulic jack 17, and is wrapped around the jack stationary pulley 21 and extends along the length of the hydraulic jack 17. Is extended around the other side of the jack pulley 22 and extended along the length of the hydraulic jack 17, and the other end is attached to a rope stopper 25 provided on the bridge 15 near the stationary jack pulley 21, that is, a fixed portion. It is fixed.

In the hydraulic elevator apparatus for a pedestrian bridge constructed as described above, hydraulic oil is supplied to the hydraulic jack 17 by the hydraulic drive unit 30 to extend the hydraulic jack 17, and the jack pulley 22 is jacked by the jack pulley 22 via the pulley base 18. It is guided by the rail 20 and moves. Then, the car 4 is driven up through the main rope 24. Also, the hydraulic jack 17
When the pressure oil is discharged from the car 4, the weight of the car 4 causes the car 4 to move downward due to the reverse operation of the ascending operation.

Also in the above configuration, the hydraulic jack 17
Are arranged along the length of the bridge body 15, so that the cross-sectional area of the hoistway 1 can be reduced. Therefore, although detailed description is omitted, it is clear that the embodiment of FIG. 5 can obtain substantially the same operation as the embodiment of FIGS. 1 and 2.

Further, in the embodiment of FIG. 5, since the hydraulic jack 17 is installed on the lower surface of the bridge body 15, there is no protrusion from the side surface of the bridge body 15 and the aesthetic appearance of the bridge body 15 can be improved. Further, by installing the hydraulic jack 17 on the lower surface of the bridge 15, the hydraulic jack 17, the main rope 24,
Each pulley or the like can be protected from rainwater and the like, and damage due to mischief can be prevented, the life can be extended and the maintenance cost can be reduced.

Embodiment 4 FIG. FIG. 6 is also an enlarged plan view around the hydraulic elevator showing another embodiment of the present invention.
It is an equivalent view, and the hydraulic elevator apparatus for pedestrian bridges is configured similarly to FIG. 1 and FIG. 2 except for FIG. In the figure, the same reference numerals as those in FIGS. 1 and 2 indicate the corresponding parts, and 30 is a hydraulic drive device provided on the lower surface of the bridge 15.

In the hydraulic elevator apparatus for a pedestrian bridge constructed as described above, pressure oil is supplied to the hydraulic jack 17 by the hydraulic drive device 30 to extend the hydraulic jack 17, and the jack pulley 22 is jacked by the jack pulley 22 via the pulley base 18. It is guided by the rail 20 and moves. Then, the car 4 is driven up through the main rope 24. Also, the hydraulic jack 17
When the pressure oil is discharged from the car 4, the weight of the car 4 causes the car 4 to move downward due to the reverse operation of the ascending operation.

Also in the above configuration, the hydraulic jack 17
Are arranged along the length of the bridge body 15, so that the cross-sectional area of the hoistway 1 can be reduced. Therefore, although detailed description is omitted, it is clear that the embodiment of FIG. 6 can obtain substantially the same operation as the embodiment of FIGS. 1 and 2.

Further, in the embodiment of FIG. 6, since the hydraulic drive unit 30 is installed on the lower surface of the bridge 15, the pipe line 31 connecting the hydraulic jack 17 and the hydraulic drive unit 30 can be shortened and installed. You can save money. Also,
The machine room under the stairs 28 is not required, and the space under the stairs 28 can be effectively used.

Example 5. FIG. 7 is also an enlarged plan view around the hydraulic elevator showing another embodiment of the present invention.
It is a corresponding view, and the hydraulic elevator device for a pedestrian bridge is configured similarly to the above-described FIG. 6 except for FIG. 7. In the figure,
The same reference numerals denote corresponding parts, 30 is a hydraulic drive device provided on the lower surface of the bridge body 15, 34 is an opening provided on the walking surface of the bridge body 15 and at a position corresponding to the hydraulic drive device 30. , 35 are lids for opening and closing the opening 34.

In the hydraulic elevator system for a footbridge constructed as described above, hydraulic oil is supplied to the hydraulic jack 17 by the hydraulic drive unit 30 to extend the hydraulic jack 17, and the jack pulley 22 is jacked by the jack pulley 22 via the pulley base 18. It is guided by the rail 20 and moves. Then, the car 4 is driven up through the main rope 24. Also, the hydraulic jack 17
When the pressure oil is discharged from the car 4, the weight of the car 4 causes the car 4 to move downward due to the reverse operation of the ascending operation.

Also in the above configuration, the hydraulic jack 17
Are arranged along the length of the bridge body 15, so that the cross-sectional area of the hoistway 1 can be reduced. Therefore, although detailed description is omitted, it is clear that the embodiment of FIG. 7 can obtain substantially the same operation as the embodiment of FIGS. 1 and 2 and the embodiment of FIG. Also, in the embodiment of FIG. 7, the lid 3
5 is opened and the hydraulic drive unit 30 is connected to the bridge 15 through the opening 34.
It can be inspected by the work from the walking surface, and the maintenance work can be facilitated.

Example 6. FIG. 8 is also an enlarged plan view of a hydraulic elevator and its surroundings, showing another embodiment of the present invention.
It is an equivalent view, and the hydraulic elevator apparatus for pedestrian bridges is configured similarly to FIG. 7 described above except for FIG. 8. In the figure,
The numeral 36 indicates a corresponding part, and 36 is a scaffolding plate, which is provided at a height corresponding to the lower surface of the hydraulic drive device 30 and is installed corresponding to the hydraulic jack 17 and the hydraulic drive device 30 on the plane.

In the hydraulic elevator apparatus for a pedestrian bridge constructed as described above, pressure oil is supplied to the hydraulic jack 17 by the hydraulic drive unit 30 to extend the hydraulic jack 17, and the jack pulley 22 is jacked by the jack pulley 22 via the pulley base 18. It is guided by the rail 20 and moves. Then, the car 4 is driven up through the main rope 24. Also, the hydraulic jack 17
When the pressure oil is discharged from the car 4, the weight of the car 4 causes the car 4 to move downward due to the reverse operation of the ascending operation.

Also in the above configuration, the hydraulic jack 17
Are arranged along the length of the bridge body 15, so that the cross-sectional area of the hoistway 1 can be reduced. Therefore, although detailed description is omitted, it is obvious that the embodiment of FIG. 8 can obtain substantially the same operation as that of both the embodiments of FIGS. 1 and 2 and the embodiment of FIG.

In the embodiment of FIG. 8, the scaffolding plate 36 is also used.
Therefore, the hydraulic jack 17 and the hydraulic drive device 30 can be inspected, and maintenance work can be facilitated. Also,
It is possible to prevent the scaffolding plate 36 from dropping tools and maintenance members during maintenance work, and prevent accidents caused by the tools falling on the road.

Example 7. FIG. 9 is also a lateral cross-sectional view of a main part of a bridge body showing another embodiment of the present invention, and a pedestrian bridge hydraulic elevator apparatus is configured similarly to FIG. 8 except for FIG. In the figure, the same reference numerals as those in FIG. 8 indicate the corresponding parts, and 37 is a side wall continuously provided on the entire circumference of the scaffolding plate 36, in which the total amount of the pressure oil accommodated in the hydraulic jack 17 and the hydraulic drive device 30 is The height is set so as not to overflow even when the scaffold 36 flows out.

In the hydraulic elevator apparatus for a pedestrian bridge constructed as described above, pressure oil is supplied to the hydraulic jack 17 by the hydraulic drive unit 30 to extend the hydraulic jack 17, and the jack pulley 22 is jacked by the jack pulley 22 via the pulley base 18. It is guided by the rail 20 and moves. Then, the car 4 is driven up through the main rope 24. Also, the hydraulic jack 17
When the pressure oil is discharged from the car 4, the weight of the car 4 causes the car 4 to move downward due to the reverse operation of the ascending operation.

Also in the above configuration, the hydraulic jack 17
Are arranged along the length of the bridge body 15, so that the cross-sectional area of the hoistway 1 can be reduced. Therefore, although detailed description is omitted, it is apparent that the embodiment of FIG. 8 can obtain substantially the same operation as that of both the embodiment of FIGS. 1 and 2 and the embodiment of FIG.

Further, in the embodiment shown in FIG. 9, even if the total amount of the pressure oil stored in the hydraulic jack 17 and the hydraulic drive device 30 flows out to the scaffold plate 36, the pressure oil may flow down from the scaffold plate 36. Blocked by sidewall 37. This makes it possible to prevent a secondary disaster from occurring due to the outflow of pressure oil.

[0053]

As described above, according to the present invention, a pedestrian bridge composed of a bridge body whose both ends are supported by a pier and a bridge body that crosses the road, and a hoistway provided along the pier are raised and lowered to Whether the car stops at a position corresponding to the walking surface, a hydraulic jack is provided on the bridge body and the length is arranged along the length of the bridge body, and one end side is engaged with the lower side of the car and extended upward, It is wound around a stationary pulley pivotally attached to the fixed part and extended along the length of the hydraulic jack, and the other end side is engaged with the hydraulic jack and driven by the operation of the hydraulic jack to raise and lower the car. It is provided.

As a result, the hydraulic jack is provided along the bridge body, the cross-sectional area of the hoistway is reduced, and the required floor space of the pier portion is reduced. Therefore, there is an effect of facilitating the installation of the pedestrian bridge elevator.

Further, as described above, according to the present invention, a pedestrian bridge composed of a bridge body whose both ends are supported by the bridge pier and a bridge body crossing the road, and a hoistway provided along the pier are moved up and down so that the road surface and the bridge body A hydraulic jack installed on the bridge and placed along the length of the bridge to stop at a position corresponding to the walking surface, and one end fixed to the upper part of the hoistway and extended downward to the bottom of the car. It is wound around a car pulley that is pivotally attached to and extended upward, and it is wound around a stationary pulley that is pivotally attached to the fixed part of the pedestrian bridge and extended along the length of the hydraulic jack. There is provided a main rope which is wound around a jack pulley which is pivotally attached and whose other end is fixed to a fixed portion of a pedestrian bridge and which is driven by the operation of a hydraulic jack to raise and lower a car.

As a result, the car is driven by the hydraulic jack via the main rope wound around the car pulley and the jack pulley. Further, since the hydraulic jack is provided along the bridge body, the cross-sectional area of the hoistway is reduced and the required land area of the pier portion is reduced. Therefore, there is an effect of facilitating the installation of the pedestrian bridge elevator.

Further, as described above, the present invention elevates and lowers a pedestrian bridge consisting of a bridge body whose both ends are supported by the bridge pier and crosses the road, and a hoistway provided along the bridge pier, to raise and lower the road surface and the bridge body. When the car stops at a position corresponding to the walking surface, a hydraulic jack is provided on the bridge body and the length is arranged along the length of the bridge body, and one end is fixed to a rope stopper installed at the bottom of the car to move upward. It is extended and wound around a stationary pulley that is pivotally attached to the fixed part of the pedestrian bridge, extended along the length of the hydraulic jack, and the other end is wrapped around the jack pulley that is pivotally attached to the longitudinal end of the hydraulic jack. It is provided with a main rope which is fixed to a fixed portion of a pedestrian bridge and is driven by the operation of a hydraulic jack to raise and lower the car.

As a result, the car is driven by the hydraulic jack via the main rope fixed to the car and wound around the jack pulley. Further, since the hydraulic jack is provided along the bridge body, the cross-sectional area of the hoistway is reduced and the required land area of the pier portion is reduced. Therefore, there is an effect of facilitating the installation of the pedestrian bridge elevator. Further, since the number of pulleys around which the main ropes are wound is small, there is an effect that a high transmission efficiency of driving force is obtained. In addition, the required length of the main rope is short, which has the effect of reducing manufacturing costs. Further, the number of refraction of the main rope due to the pulley is small, and the life of the main rope is extended, and the maintenance cost is reduced.

As described above, according to the present invention, whether the entrance / exit of the bridge is provided in a direction along the length of the bridge, is arranged below the stationary pulley, and the direction of the main rope is the length of the bridge. And a direction-changing stationary pulley for converting to a direction along the direction.

As a result, the entrance and exit directions of the car are arranged in the direction along the length of the bridge, and the direction of the main ropes is converted to the direction along the length of the bridge by the direction-changing stationary pulley. Further, since the hydraulic jack is provided along the bridge body, the cross-sectional area of the hoistway is reduced and the required land area of the pier portion is reduced. Therefore, there is an effect of facilitating the installation of the pedestrian bridge elevator.

Further, the hydraulic jack can be installed on the lower surface of the bridge body, and there is no protrusion from the side surface of the bridge body, which has the effect of improving the aesthetics of the bridge body. Also, by installing the hydraulic jack on the underside of the bridge, the hydraulic jack, main ropes, pulleys, etc. can be protected from rainwater, etc., and damage due to mischief can be prevented, the life is extended and maintenance cost is maintained. Has the effect of reducing

Further, as described above, the present invention provides a bridge body provided with an opening for maintenance work on a walking surface, and a hydraulic pressure provided on the lower surface of the bridge body so as to face the opening. And a drive device.

As a result, the hydraulic drive device is provided on the lower surface of the bridge body so as to face the maintenance work opening of the walking surface of the bridge body. Further, since the hydraulic jack is provided along the bridge body, the cross-sectional area of the hoistway is reduced and the required land area of the pier portion is reduced. Therefore, there is an effect of facilitating the installation of the pedestrian bridge elevator.

Further, since the hydraulic drive device is installed on the lower surface of the bridge body, the pipeline connecting the hydraulic jack and the hydraulic drive device can be shortened, which has the effect of reducing the installation cost.
Further, there is an effect that the machine room under the stairs becomes unnecessary and the space under the stairs can be effectively used. Further, the hydraulic drive device can be inspected from the opening by the work from the walking surface of the bridge, which has the effect of facilitating the maintenance work.

As described above, according to the present invention, the scaffolding plate disposed under the hydraulic drive device and installed corresponding to the hydraulic jack and the position of the hydraulic drive device, and the scaffolding plate continuously over the entire circumference thereof. And a side wall which is provided to prevent the oil leaked from the hydraulic jack and the hydraulic drive device from flowing down.

As a result, the scaffolding plate is installed under the hydraulic jack and the hydraulic drive device, and the side walls continuously provided around the entire circumference of the scaffolding plate prevent the leakage of the leaked oil from the hydraulic jack and the hydraulic drive device. To be done. Further, since the hydraulic jack is provided along the bridge body, the cross-sectional area of the hoistway is reduced and the required land area of the pier portion is reduced. Therefore, there is an effect of facilitating the installation of the pedestrian bridge elevator.

Further, the hydraulic jack, the hydraulic drive device and the like can be inspected by the work from the scaffolding plate, which has the effect of facilitating the maintenance work. In addition, the scaffolding plate can prevent the tools and maintenance members from falling during maintenance work, which has an effect of preventing accidents caused by the tools and the like falling on the road. Further, even if the pressure oil of the hydraulic jack or hydraulic drive device flows out to the scaffolding plate, the outflow of the pressured oil from the scaffolding plate is blocked, so that a secondary disaster may occur due to the outflow of the pressured oil. Has the effect of preventing.

[Brief description of drawings]

FIG. 1 is a front view of a footbridge showing a first embodiment of the present invention in which a hydraulic elevator is cut vertically.

FIG. 2 is an enlarged plan view around the hydraulic elevator shown in FIG.

FIG. 3 is a vertical sectional view of a hydraulic elevator in a front view of a footbridge showing a second embodiment of the present invention.

FIG. 4 is an enlarged plan view around the hydraulic elevator in FIG.

FIG. 5 is an enlarged plan view around a hydraulic elevator showing a third embodiment of the present invention and is a partially cutaway view corresponding to FIG.

FIG. 6 is an enlarged plan view around a hydraulic elevator showing a fourth embodiment of the present invention and is a partially broken view corresponding to FIG.

FIG. 7 is an enlarged plan view around a hydraulic elevator showing a fifth embodiment of the present invention and is a partially cutaway view corresponding to FIG.

FIG. 8 is an enlarged plan view around a hydraulic elevator showing a sixth embodiment of the present invention and is a partially cutaway view corresponding to FIG.

FIG. 9 is a cross-sectional view of a main portion of a bridge body showing Embodiment 7 of the present invention.

FIG. 10 is a vertical cross-sectional view of a conventional hydraulic elevator device.

[Explanation of symbols]

1 hoistway, 4 car, 5 car pulley, 14 piers, 1
5 bridges, 17 hydraulic jacks, 22 jack pulleys,
23 Stationary pulley, 24 Main rope, 30 Hydraulic drive device, 3
2 rope stop, 33 direction change stationary pulley, 34 opening, 36 scaffolding board, 37 side wall.

Claims (6)

[Claims] 1. A pedestrian bridge consisting of bridges whose both ends are supported by the piers and which crosses the road, and a hoistway provided along the piers are lifted and stopped at a position corresponding to the road surface and the walking surface of the bridge. A cage, a hydraulic jack provided on the bridge body and having a longitudinal length arranged along the longitudinal direction of the bridge body, and one end side of which is engaged with a lower side of the car and extended upward, to a fixed portion of the pedestrian bridge. A main rope that is wound around a stationary pulley that is pivotally attached and extends along the length of the hydraulic jack, and the other end is engaged with the hydraulic jack and is driven by the operation of the hydraulic jack to raise and lower the car. Hydraulic elevator system for pedestrian bridges. 2. A pedestrian bridge consisting of bridges whose both ends are supported by the piers and which crosses the road, and a hoistway provided along the piers ascends and descends, and stops at a position corresponding to the road surface and the walking surface of the bridge. A car and a hydraulic jack provided on the bridge body and having a longitudinal length arranged along the longitudinal direction of the bridge body, and one end fixed to an upper part of the hoistway and extended downward to be pivotally attached to a lower part of the car. Wrapped around the cage pulley and extended upwards, wrapped around the stationary pulley pivotally attached to the fixed part of the pedestrian bridge and extended along the length of the hydraulic jack to the longitudinal end of the hydraulic jack. A hydraulic elevator device for a footbridge, which is wound around a jack pulley that is pivotally attached and has the other end fixed to a fixed portion of the footbridge and driven by the operation of the hydraulic jack to elevate and lower the car. 3. A pedestrian bridge consisting of bridges whose both ends are supported by the piers and which crosses the road. A hoistway provided along the piers is lifted and stopped at a position corresponding to the road surface and the walking surface of the bridge. A cage, a hydraulic jack provided on the bridge body and having a longitudinal direction arranged along the longitudinal direction of the bridge body, and one end fixed to a rope stopper provided on a lower portion of the car and extended upward, It is wound around a stationary pulley pivotally attached to the fixed part of the pedestrian bridge and extended along the length of the hydraulic jack, and the other end is wrapped around the jack pulley pivotally attached to the longitudinal end of the hydraulic jack. A pedestrian bridge hydraulic elevator device including a main rope that is fixed to a fixed portion of the pedestrian bridge and is driven by the operation of the hydraulic jack to raise and lower the car. 4. A direction change device for arranging whether the entrance / exit of the entrance / exit is provided in a direction along the length of the bridge body or arranged below the stationary pulley so as to convert the direction of the main rope into the direction along the length of the bridge body. The pedestrian bridge hydraulic elevator apparatus according to claim 1, further comprising a stationary pulley. 5. A bridge body provided with an opening for maintenance work on a walking surface, and a hydraulic drive device provided on the lower surface of the bridge body and opposed to the opening. The hydraulic elevator device for pedestrian bridges according to claim 1. 6. A scaffolding plate disposed below the hydraulic drive device and installed corresponding to the location of the hydraulic jack and the hydraulic drive device, and the hydraulic jack provided continuously over the entire circumference of the scaffolding plate. The hydraulic elevator device for a pedestrian bridge according to claim 5, further comprising: a side wall that prevents the leakage of the leaked oil from the hydraulic drive device.