JP4681626B2 - Boarding bridge - Google Patents

Description

  The present invention relates to a boarding bridge used for passengers getting on and off an aircraft, a ship or the like.

The boarding bridge is, for example, a tunnel-like walking passage that connects an airport terminal building and an aircraft, and enables passengers to get on and off directly between the terminal building and the aircraft.
The intermediate passage portion of the boarding bridge is constituted by a plurality of passage bodies fitted in a nested manner, and the passage bodies expand and contract by moving relative to each other in the longitudinal direction. This corresponds to the distance between the terminal building and the aircraft.
However, since the passage bodies are fitted in a nested manner, a step is generated in the passages of the adjacent passage bodies, and there is a risk that a passerby may trip over the step and fall.
As what eliminates this level | step difference, what spans a step as shown by patent document 1, for example is used.

JP 2004-90770 A

However, as shown in Japanese Patent Application Laid-Open No. 2004-133620, the step is basically not eliminated, so that there is still a possibility that a passerby will stumble at the step portion and fall down.
Also, there is a problem that it is difficult for wheelchair passers to pass.
In particular, with the recent progress in variable free, there is a further demand for a road that eliminates steps.

By the way, when the boarding bridge is extended, such as when connected to an aircraft, for example, when a trouble such as a power failure occurs, the boarding bridge is returned to the original shortened state as an emergency evacuation. It has become.
This is because the boarding bridge itself has no power. For example, the towing car or the like pushes the movable leg to forcibly reduce the length.
It is necessary to prepare so that the boarding bridge does not have a problem with this emergency evacuation.
Accordingly, there is a demand for a structure that can shorten the preparation time for emergency evacuation on a traffic route, does not cause problems, and can be easily restored.

  In view of the above-described problems, the present invention provides a boarding bridge that can reduce the preparation time for suppressing problems during emergency evacuation, eliminates a step between the passage portions of adjacent passage bodies, and can suppress the occurrence of a fall or the like. The purpose is to provide.

In order to solve the above problems, the present invention employs the following means.
That is, the present invention is a boarding bridge in which a plurality of tubular passage bodies are fitted in a nesting manner and move relative to each other in the longitudinal direction to expand and contract, and are located outside of the adjacent passage bodies. The outer passage body is fixed to the inner passage body having one end positioned on the inner side, and is attached to a passage forming member that extends toward the distal end side to form a passage, and a lower end portion of the outer passage body, A guide member that vertically guides the other end portion of the passage forming member; a rope having one end attached to the other end of the passage forming member; and a lower end of the rear end portion of the outer passage body. A weight having a winding drum that winds and rewinds while applying a predetermined tension, and an engaging portion that forms a space in which the rope is loosely inserted, and is detachably locked to the lower surface of the outer passage body A member, and a bow provided with To provide the I ring bridge.

According to the boarding bridge of the present invention, one end of the passage forming member that forms the passage of the outer passage body is fixed to the inner passage body, extends toward the distal end side, and is attached to the lower end portion of the outer passage body. Guided downward by the guide member. The tension is applied to the rear end side of the outer passage body by a rope wound around a winding drum attached to the lower portion of the rear end portion of the outer passage body.
Since the guide member is integrally attached to the outer passage body, the guide member automatically comes into contact with and separates from the inner passage body as the inner passage body and the outer passage body move relative to each other. Become. Since one end of the passage forming member is fixed to the inner passage body, the length of the passage of the outer passage body changes by the amount of relative movement between the inner passage body and the outer passage body due to the movement of the guide member. It will be.

Therefore, the length of the passage portion located at the passage position of the outer passage body can be automatically adjusted. Further, by adjusting the fixing position of the one end portion of the passage forming member, the passage between the inner passage body and the outer passage body can be formed continuously.
As described above, since the passage portions can be formed from the inner passage body to the outer passage body at substantially the same height and continuously, it is possible to suppress the occurrence of a situation such as a fall of a passerby or a trip. . In addition, passers-by can travel safely without worrying about these issues.

When the boarding bridge is connected to the aircraft, i.e. extended, the outer passage body is moved distally with respect to the inner passage body, so that the majority of the passage forming member forms the passage and the rope Is unwound from the take-up drum and extends long on the tip side.
In this state, for example, when a trouble such as a power failure occurs, the boarding bridge is returned to the original shortened state by pressing the movable leg by the towing car as an emergency evacuation.
At the time of this forced shortening, since the winding drum is not operating, no tension acts on the passage forming member and the rope. For this reason, since the passage forming member is not smoothly guided downward by the guide member but stays in the upper portion, there is a possibility that the passage forming member bends along with the contraction and damages other peripheral members. The same applies to the passage forming member and the rope existing below. Furthermore, it takes time and labor to normally wind the staying rope around the winding drum.

According to the present invention, the weight member is provided with the engaging portion that forms a space in which the rope is loosely inserted and is detachably locked to the lower surface of the outer passage body. When the weight member is separated from the lower surface, the weight member falls downward. Since the rope is loosely inserted in the space of the engaging portion, the falling of the weight member causes the engaging portion to come into contact with the rope and the weight member is supported by the rope. In other words, the weight member gives a certain tension to the rope and the passage forming member.
Therefore, even when the outer passage body is forcibly moved due to an emergency retreat, a constant tension acts on the rope and the passage forming member by the descending weight member, so that the passage forming member is smoothly guided downward by the guide member. It is possible to suppress the occurrence of the above problems by staying. In other words, the emergency evacuation can be prepared simply by removing the weight member from the outer passage body, so that the preparation can be performed in a short time.
When the power failure is restored, the winding drum is activated and the rope is slowly wound. At this time, since the tension by the weight member is acting, the turbulent winding to the winding drum can be suppressed.
Accordingly, the weight member rises, so that it can be easily attached to the outer passage body.

Moreover, in the said invention, you may make it the one end part of the said channel | path formation member be fixed to the edge part of the channel | path part of the said inner side channel | path body.
In this way, the passage heights of the inner passage body and the outer passage body can be easily aligned.

In the invention described above, the weight member has a circular shape having protrusions protruding in the outer peripheral side in at least two locations in plan view, and the outer shape of the weight member is formed on the lower surface of the outer passage body. It is preferable that a through-hole having a shape along it is formed .

In this case, since the shape of the through hole is substantially in line with the outer shape of the weight member, the weight member can pass through the through hole if the protrusion is aligned with the corresponding portion of the through hole. That is, it will separate from the outer passage body.
When the weight member is moved upward through the through hole and then rotated in a plane, the protrusion engages with the periphery of the through hole, so that the weight member cannot pass through the through hole. Therefore, the weight member is locked, that is, attached to the outer passage body.
Thus, since the weight member can be attached to and detached from the outer passage only by rotating in a plane with respect to the through hole of the weight member, the weight member can be easily attached to and detached from the outer passage body.

  Moreover, in the said invention, the length of the direction which cross | intersects the said rope of the space which the said engaging part forms is made larger than the movement amount in the width direction of the said rope by the winding position of the said winding drum. Is preferred.

  In this way, it is possible to prevent the rope from coming into contact with the engaging portion during normal movement, so that it is possible to suppress an increase in resistance during winding and rewinding and wear of the rope and the locking portion.

Moreover, in the said invention, you may make it the rod-shaped guide member extended in the direction which cross | intersects the said rope above the edge part of the said through-hole.

  If it does in this way, when a weight member engages with a rope and descends, since a guide member guides a rope, movement of a rope can be made smooth. Moreover, since a rope does not contact the edge part of a through-hole, it can prevent that an edge part is damaged.

  Moreover, in the said invention, you may make it the recessed part which has a width | variety larger than the width | variety of the said projection part, and is lower than the periphery in the peripheral part of the said through-hole.

When the weight member is moved upward through the through hole and then rotated in a plane, the protrusion can be positioned at a position corresponding to the recess. When the weight member is lowered at this position, the protrusion is engaged with the recess.
Since the recess has a lower height than the surroundings, the protrusion is limited to move at least in the rotational direction.
Therefore, unless the weight member is lifted, the protrusion cannot be matched with the corresponding portion of the through hole. Therefore, even if an external force such as vibration acts on the weight member when the boarding bridge is operated, they match. This can be suppressed. As a result, it is possible to prevent a situation in which the weight member falls during the operation of the boarding bridge and interferes with the operation of the winding drum.

According to the present invention, the weight member that has the engaging portion that forms a space in which the rope is loosely inserted and is detachably locked to the lower surface of the outer passage body is provided. Preparation time can be reduced.
Further, one end is fixed to the inner passage body positioned on the inner side, and is guided and pulled by a guide member attached to the other end side distal end portion of the passage forming member that extends toward the distal end side to form the passage. Thus, the passage portion can be continuously formed from the inner passage body to the outer passage body, and the occurrence of a situation such as a fall of a passerby or a trip can be suppressed.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 12 as an example of a boarding bridge 1 in which a tunnel portion that expands and contracts includes two tunnels.
FIG. 1 is a front view showing an overall schematic configuration of the boarding bridge 1.
The boarding bridge 1 connects the airport terminal building and the aircraft 13, forms a passage for passengers (passengers) between the terminal building and the aircraft 13, and enables direct boarding / exiting.

  The boarding bridge 1 includes a roton 5 fixed to a fixed bridge 3 leading to a terminal building, and a proximal tunnel (passage body, inner passage body) 7 connected to the roton 5 so as to be rotatable in a horizontal direction. A front end tunnel (passage body, outer passage body) 9 that is telescopically fitted to the front end side (aircraft 13 side) of the proximal end tunnel 7 and a head (connection portion) provided at the front end portion of the front end tunnel 9 11.

A fixed leg 15 fixed to the ground is provided at the bottom of the rotander 5. A movable leg 17 is provided on the distal end side in the longitudinal direction of the distal end tunnel 9.
The boarding bridge 1 is supported by fixed legs 15 and movable legs 17.
The proximal tunnel 7 and the distal tunnel 9 each have a hollow long rectangular column shape. In the proximal tunnel 7 and the distal tunnel 9, steel structural beams are arranged on each side of the quadrangular column, and, for example, panels made of aluminum alloy are attached to both side surfaces and upper and lower surfaces so as to connect the structural beams. It is formed in a cylindrical shape. The panel may be made of steel, resin, transparent material (resin, glass, etc.) or the like.

The cross-sectional area of the hollow portion of the front end tunnel 9 is configured to be larger than the cross-sectional area of the base end tunnel 7. The hollow portion of the distal end tunnel 9 is guided to the outer peripheral surface of the proximal end tunnel 7.
The front end tunnel 9 moves in the longitudinal direction N as the movable leg 17 moves, and expands and contracts the length of the boarding bridge 1. This expansion and contraction corresponds to a change in the distance between the roton 5 and the aircraft 13.

The head 11 is provided with a head main body 19 attached to the front end portion of the front end tunnel 9 and a connecting portion 21 that connects the head main body 19 and the boarding / alighting portion 23 of the aircraft 13.
The head body 19 has a substantially cylindrical shape with an axis extending in the vertical direction.
The connecting portion 21 has a substantially rectangular parallelepiped shape. The connecting portion 21 is attached so as to be movable along the periphery of the head body 19 within a certain angle range.
A connecting body 25 that extends and contracts in the longitudinal direction N by the bellows structure and covers the periphery of the boarding / exiting portion 23 so that the door can be opened and is closely adhered along the outer plate of the aircraft 13 at the distal end portion of the connecting portion 21. Is provided.

The rotander 5 is provided with a fixed passage 27 through which passengers pass. The proximal end tunnel 7 is provided with a fixed passage 29 through which passengers pass substantially the entire length.
The leading tunnel 9 is provided with a variable length passage (passage forming member) 31 in which the length of a passage portion (passage) 33 through which passengers pass can be adjusted.
The head main body 19 is provided with a fixed passage 35 through which passengers pass.
At the rear end of the fixed passage 35 (on the fixed bridge 3 side), as shown in FIG. 2, an opening / closing step 37 constituting a passage connecting the passage portion 33 is provided.

The opening / closing step 37 is configured to swing up and down around the axis extending in the width direction toward the fixed passage 35 by the driving device 39 and the rear end side selectively contacts the passage portion 33. .
The fixed passages 27, 29, 35, the passage portion 33 of the variable length passage 31, and the upper surface of the opening / closing step 37 are configured to have a substantially constant height position.

The variable length passage 31 will be described with reference to FIG.
The variable length passage 31 includes a pair of chains 41 provided on both sides of the front end tunnel 9 so as to extend in the longitudinal direction, and a plurality of steps 43 each having both ends fixed to the chain 41 to form a passage. Is provided.
A sprocket (guide member) 45 that meshes and guides the chain 41 is rotatably attached to the distal end side of the distal end tunnel 9.
The lower part of the sprocket 45 projects downward from the lower panel of the tip tunnel 9.

The chain 41 has a rear end side end fixed to the proximal end tunnel 7 and is attached so as to wind the sprocket 45. The free end of the chain 41 is firmly connected to the rope 47.
At the lower end of the rear end portion of the front end tunnel 9, winding drum chambers 48 for storing the winding drums 49 are attached to both ends in the width direction.
A cover 50 is fixedly attached to the leading end side of the winding drum chamber 48 so as to cover the rope 47 from below. The cover 50 is integrated with the tip tunnel 9 and forms a part thereof.

The winding drum 49 is rotated clockwise and counterclockwise by a motor (not shown). The motor drives the winding drum 49 so as to always apply a predetermined tension to the rope 47.
The chain 41 is guided by a guide (not shown) so as to form a substantially linear locus except for the sprocket 45 portion.

The step 43 includes a main body 51 that is a plate having a substantially trapezoidal cross section, a carpet 53 that is attached to the large area side of the main body 45 over substantially the entire surface, and a main body 51 that is fixed to the small area of the main body 51. It is comprised from the reinforcement part 55 which reinforces the intensity | strength of this.
The reinforcing portion 55 is a hollow rectangular parallelepiped, and is disposed over substantially the entire length of the main body portion 51.
The main body 51 and the reinforcing portion 55 are made of iron or aluminum alloy.

The step 43 is attached to the chain 41 so that there is almost no gap between adjacent ones.
A step 43 located from the proximal tunnel 7 to the sprocket 45 forms the passage portion 33. The sprocket 45 is switched between the passage portion 33 that is the passage position and the passage portion that is located outside the passage.
Accordingly, the length of the passage portion 33 is changed corresponding to the position of the sprocket 45, that is, the position of the front end tunnel 9 in the longitudinal direction N.

  Moreover, since step 43 is divided | segmented into the longitudinal direction N, what adjoins in the part of the sprocket 45 can bend. Accordingly, the step 43 can move around the sprocket 45 as the sprocket 45 rotates. Therefore, the step 43 can be made of a material having high rigidity, that is, for example, iron or aluminum alloy. Can be configured.

The height position of the chain 41 in the passage portion 33 is set so that the upper surface position of the carpet 53 in step 43 is substantially the same height as the upper surface position of the fixed passage 29.
As described above, since the passage portion 33 is disposed at a position where it does not interfere with the fixed passage 29, it can be set at a height position substantially the same as that of the fixed passage 29.
Further, as the leading end tunnel 9 moves in the longitudinal direction N, the length of the passage portion 33 changes by a length corresponding to the moving distance. Therefore, even if the leading end tunnel 9 moves, the opening / closing step 37 is always performed. The positional relationship in the longitudinal direction N is substantially the same.
Therefore, a path without a step can be continuously formed from the rotander 5 to the head 11.

  In this way, since the passages can be formed continuously from the rotander 5 to the head 11 at substantially the same height, it is possible to suppress the occurrence of a situation such as a fall of a passer-by or a trip. In addition, passers-by can travel safely without worrying about these issues.

Next, the emergency evacuation processing mechanism 61 will be described. FIG. 3 is a longitudinal sectional view showing the overall configuration of the emergency evacuation processing mechanism 61. 4 is a cross-sectional view taken along line XX in FIG. FIG. 5 is a plan view of FIG.
The emergency evacuation processing mechanism 61 is installed on the lower surface plate 52 that constitutes the lower surface of the cover 50. A pulley 54 for guiding the rope 47 is attached to the front end side of the cover 50.
The emergency evacuation processing mechanism 61 includes a weight device (weight member) 63, an installation portion 65 for detachably installing (locking) the weight device 63, and a rope guide portion (guide member) 67. Yes.

The weight device 63 includes a weight part 69 having a function of weight that applies tension to the rope 47 during operation, and a hook part (engagement part) 71 that engages with the rope 47 during operation.
8 is a bottom view of the weight portion 69, and FIG. 9 is a side view.
The weight part 69 is a substantially circular plate-like body. A substantially rectangular plate-like protrusion 73 is attached to the side surface of the weight part 69 so as to protrude at a position facing the center of the axis.

A pair of actuating plates 75 are attached to the bottom surface of the weight portion 69 so that the surface portions face each other across the axis center. As shown in FIG. 9, the operation plate 75 is provided with a groove 77 penetrating in the thickness direction on the side opposite to the weight portion 69.
An attachment hole 79 penetrating in the thickness direction is provided at the axial center position of the weight portion 69.

The hook portion 71 is formed by bending a rod-shaped body. One end of the hook portion 71 is inserted into the attachment hole 79 of the weight portion 69 and is firmly fixed by a nut.
The other end side of the hook portion 71 is bent so as to form a substantially rhombus having a gap through which the rope 47 can pass. The space 81 formed in the diamond shape has a large width in the width direction, and has a sufficient size so that the rope 47 does not come into contact with the winding position of the winding drum 49 even if it moves in the width direction.

6 and 7 show the installation portion 65. 6 is a cross-sectional view taken along line YY of FIG. FIG. 7 is a ZZ cross-sectional view of FIG.
The installation portion 65 covers a through hole 83 that penetrates the lower surface plate 52, a bank plate 85 that is attached to the upper portion of the lower surface plate 52 so as to surround the periphery of the through hole 83, and the periphery and the upper side of the bank plate 85. An upper cover 87 is provided.
As shown in FIG. 6, the through-hole 83 has a shape substantially along the planar shape of the weight portion 69. That is, the substantially circular additional hole 89 which is substantially circular and through which the protrusion 73 passes is formed at a position facing the center of the axis.

The bank board 85 is attached along the circular portion of the through hole 83. The bank plate 85 is cut out at a position approximately 40 degrees away from the additional hole 89 in the rotation direction. Since the lower surface plate 52 appears in the notched portion, a concave portion 91 having a height lower than that of the portion having the bank plate 85 is formed. The recess 91 is provided at a position facing the center of the axis, and the circumferential length thereof is larger than that of the protrusion 73.
The upper cover 87 is an annular body having an L-shaped cross section, and is attached so as to cover the outer periphery and upper part of the bank plate 85 with a space therebetween.

The rope guide portion 67 is formed of a rod having a circular cross section, and both end portions thereof are bent at a substantially right angle. The pair of rope guide portions 67 are arranged so that the intermediate portions thereof extend in the direction intersecting the rope 47 at the positions of both end portions of the through hole 83 in the rope 47 traveling direction.
The rope guide portion 67 is attached to the lower surface plate 52 at both ends located below.
The length of the rope guide portion 67 in the width direction is larger than the diameter of the upper cover 87.
For example, the rope guide 67 may be constituted by a rotating roller.

The operation of the boarding bridge 1 according to the present embodiment described above will be described.
As shown in FIGS. 3 to 5, the emergency evacuation processing mechanism 61 is installed such that the protrusion 73 of the weight 69 is positioned in the recess 91.
At this time, the space 81 of the hook portion 71 and the rope guide portion 67 are located in a direction intersecting the rope 47. The rope 47 is located at a substantially central height position of the space 81.
At the airport, the boarding bridge 1 stands by in a state in which the distal end tunnel 9 is largely fitted with the proximal end tunnel 7 as shown by a two-dot chain line in FIG.
When the aircraft 13 arrives, the movable leg 17 operates, and the tip tunnel 9 moves toward the aircraft 13. That is, the boarding bridge 1 is extended.

  When the tip tunnel 9 moves toward the aircraft 13, the sprocket 45 also moves in the same direction, so that the force applied to one end of the chain 41 fixed to the proximal end tunnel 7 overcomes the traction force of the take-up drum 49 and the chain 41 is sprocketed. 45 is rotated toward the proximal tunnel 7 side. As the sprocket 45 rotates, the chain 41 moves from the lower part to the upper part.

As the chain 41 moves, the step 43 moves to the passage passage portion 33, so that the length of the passage passage portion 33 in the longitudinal direction N is automatically increased by the distance traveled by the sprocket 45, that is, the tip tunnel 9.
At this time, the opening / closing step 37 is retracted to a position indicated by a two-dot chain line in FIG. 2 so that the carpet 53 of the moving step 43 is not rubbed and damaged.

When the head 11 approaches the boarding / alighting part 23 of the aircraft 13 and the connecting body 25 of the connecting part 21 reaches a predetermined position facing the boarding / alighting part 23, the extension and movement of the boarding bridge 1 are stopped.
In this state, the connecting body 25 is extended to the aircraft 13 side, and its tip is brought into close contact with the outer plate of the aircraft 13.

When the head 11 is connected to the aircraft 13, the opening / closing step 37 is lowered, and the passage portion 33 and the fixed passage 35 are formed as a continuous passage.
Since the chain 41 is pulled by the take-up drum 49, a tension in the longitudinal direction N acts on the step 43 located in the passage portion 33, and a more stable passage is formed.

  In this way, since the passages can be formed continuously from the rotander 5 to the head 11 at substantially the same height, it is possible to suppress the occurrence of a situation such as a fall of a passer-by or a trip. In addition, passers-by can travel safely without worrying about these issues.

When the passage of the passerby is completed, the head 11 is detached from the aircraft 13 and the tip tunnel 9 is moved to the rotander 5 side. At this time, the opening / closing step 37 is retracted in the same manner as described above.
When the tip tunnel 9 moves toward the rotander 5, the sprocket 45 also moves in the same direction, so that the chain 41 rotates the sprocket 45 toward the head 11 by the traction force of the winding drum 49. The rotation of the sprocket 45 moves the chain 41 from the upper side to the lower side.

For example, when the boarding bridge 1 is in the extended state, for example, when a trouble such as a power failure occurs, the boarding bridge 1 is to be shortened as an emergency evacuation.
For example, the movable leg 17 is pushed by a towing car and is forcibly returned to the original shortened state.
At the time of this forced shortening, since the winding drum 49 is not operating, no tension acts on the variable length passage 31, the chain 41 and the rope 47. As this countermeasure, the emergency evacuation processing mechanism 61 is used.

For example, a rotating jig 93 as shown in FIG. 10 is provided. The rotating jig 93 is attached to one end of the long handle 97 with a fitting plate 95 that can be inserted into the groove 77.
An operator holds the rotating jig 93 and inserts the front end of the fitting plate 95 into the grooves 77 of both operation plates 75 from the ground.
In this state, the long handle 97 is pushed up and the weight part 69 is raised. Next, the long handle 97 is rotated, and the weight portion 69 is rotated in the direction of the arrow indicated by the two-dot chain line in FIG. When the protrusion 73 reaches the position of the additional hole 89, the rotating jig 93 is lowered.

As a result, there is no support for the weight part 69, that is, the weight part 69 falls down because it is detached from the lower surface plate 52.
When the weight portion 69 falls, the upper portion of the hook portion 71 comes into contact with the rope 47, and the weight portion 69 is supported by the rope 47 as shown in FIG. In other words, the weight portion 69 gives a constant tension to the variable length passage 31, the chain 41, and the rope 47.
This completes preparation for emergency evacuation.

As described above, the emergency evacuation preparation can be made only by lifting and rotating the weight portion 69, so that the preparation can be made in a short time.
In the present embodiment, the weight portion 69 is lifted and rotated from the ground using the rotating jig 93. However, the present invention is not limited to this. For example, an operator climbs on a stepladder. Alternatively, the weight 69 may be directly lifted and rotated.

When the forced contraction is performed, as the distal end tunnel 9 moves to the proximal end tunnel 7 side, the tension of the variable length passage 31, the chain 41, and the rope 47 decreases, and the rope 47 tries to bend. The weight 69 is lowered by the amount of deflection, and a constant tension is applied to the variable length passage 31, the chain 41, and the rope 47.
Due to this tension, the variable length passage 31, the chain 41 and the rope 47 are pulled, so that the chain 41 rotates the sprocket 45 and the variable length passage 31 moves downward.

As the weight portion 69 is lowered, the rope 47 also hangs down and the rope 49 comes into contact with the rope guide portion 67. Thereafter, when the weight portion 69 is lowered, the rope guide portion 67 guides the rope 47 as shown in FIG. 12, so that the movement of the rope 47 can be made smooth. Further, since the rope 47 does not contact the edge of the through hole, the edge of the through hole 83 can be prevented from being damaged.
As described above, since the variable length passage 31 and the like move downward due to the lowering of the weight portion 69, it is possible to suppress the possibility that they will stay and bend and break, or damage other peripheral members.

When the power failure is restored, the motor is driven to operate the winding drum 49 and the rope 47 is slowly wound. At this time, since the tension is applied by the weight portion 69, turbulent winding on the winding drum 49 can be suppressed.
As the rope 47 is wound around the winding drum 49, the weight portion 69 is raised. A rotating jig 93 is used for the raised weight portion 69 so that the projection 73 is positioned at the additional hole portion 89. In this state, the long handle 97 is pushed up and the weight part 69 is raised. Next, the long handle 97 is rotated so that the protrusion 73 overlaps the position of the recess 91, and the rotating jig 93 is lowered. Thereby, the weight part 69 is installed again in a state where the protrusion 73 is engaged with the recess 91.

Since the concave portion 91 is lower than the bank plate 85, the protrusion 73 is limited in movement in at least the rotational direction.
Therefore, unless the weight 69 is lifted, the protrusion 73 cannot be aligned with the additional hole 89. Therefore, even if an external force such as vibration acts on the weight 69 when the boarding bridge 1 is operated, the protrusion 73 And it can suppress that the additional hole part 89 corresponds.
Accordingly, it is possible to prevent a situation in which the weight portion 69 falls during operation of the boarding bridge 1 and disturbs the operation of the winding drum 49.

In addition, this invention is not limited to the said embodiment, In the range which does not deviate from the summary of this invention, it can change suitably.
For example, the present invention can be applied to the boarding bridge 1 in which an intermediate tunnel is provided between the proximal tunnel 7 and the distal tunnel 9.
In this case, the intermediate tunnel is provided with a variable length passage having substantially the same structure as the variable length passage 31 in the present embodiment. One end of the variable length passage is connected to the fixed passage 25. One end of the variable length passage 31 of the tip tunnel 9 is fixed to the intermediate tunnel.
A plurality of intermediate tunnels may be provided.

1 is a front view showing an overall schematic configuration of a boarding bridge according to an embodiment of the present invention. It is a longitudinal cross-sectional view of the variable-length channel | path concerning one Embodiment of this invention. It is a longitudinal cross-sectional view of the emergency evacuation processing mechanism according to one embodiment of the present invention. It is XX sectional drawing of FIG. FIG. 5 is a plan view of FIG. 4. It is YY sectional drawing of FIG. It is ZZ sectional drawing of FIG. It is a bottom view of the weight part concerning one Embodiment of this invention. It is a side view of the weight part concerning one Embodiment of this invention. It is a perspective view which shows the rotation jig concerning one Embodiment of this invention. It is a schematic diagram which shows the ready completion state of the processing mechanism at the time of emergency evacuation concerning one Embodiment of this invention. It is a schematic diagram which shows the operating state of the processing mechanism at the time of emergency evacuation concerning one Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Boarding bridge 7 Base end tunnel 9 Front end tunnel 31 Variable length passage 33 Passage passage part 45 Sprocket 47 Rope 49 Winding drum 63 Weight device 67 Rope guide part 71 Hook part 73 Protrusion part 81 Space 83 Through-hole 91 Recessed part N Longitudinal direction

Claims (6)

It is a boarding bridge in which a plurality of cylindrical passage bodies are fitted in a nested manner, and move relative to each other in the longitudinal direction to expand and contract,
Among the adjacent passage bodies, the outer passage body located outside is
A passage-forming member having one end fixed to the inner passage body located on the inner side and extending toward the tip side to form a passage;
A guide member that is attached to the lower end of the outer passage body and guides the other end portion of the passage forming member in the vertical direction;
A rope having one end attached to the other end of the passage forming member;
A winding drum that is installed at a lower portion of the rear end portion of the outer passage body, winds and rewinds while applying a predetermined tension to the rope;
A boarding bridge, comprising: an engaging portion that forms a space in which the rope is loosely inserted, and a weight member that is detachably locked to a lower surface of the outer passage body.   The boarding bridge according to claim 1, wherein one end portion of the passage forming member is fixed to an end portion of the passage portion of the inner passage body. The weight member has a circular shape with protrusions protruding in the outer peripheral side in at least two places in plan view, and the lower surface of the outer passage body has a shape along the outer shape of the weight member. The boarding bridge according to claim 1 or 2 , wherein a through hole is formed . Length in a direction crossing the rope space in which the engaging portion is formed from claim 1, which is larger than the movement amount in the width direction of the rope by winding position of the winding drum of claim 3 The boarding bridge described in any one of the items. The boarding bridge according to claim 3 or 4 , wherein a bar-shaped guide member extending in a direction intersecting with the rope is installed above an edge of the through hole. Wherein the periphery of the through-hole has a width greater width than the protrusions, as described in any one of the preceding claims 3 to a height being lower recesses formed above ambient Boarding bridge.

Images