JP2004268763A - Rain guard - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rain guard that can be installed at the boarding gate of an airplane by one person. <P>SOLUTION: A rain guard body 100 is carried, for example, by a forklift truck. The rain guard body 100 has a passage having width and height for accepting the forklift truck, and the forklift truck can enter a passage from the rear of the rain guard body 100. An operator inserts the fork of the forklift truck into an insertion section 205 of a base section 200 to lift the rain guard body 100 for carrying to a desired location. In conveyance, a guard section 300 is moved to the rear to the base section 200 for fixing, thus dispensing with a guide for carrying the rain guard body 100 and enabling an operator to carry the rain guide body 100 by the one person. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a rain guard used at the boarding gate of an aircraft.
[0002]
[Prior art]
In general, for example, getting on and off a propeller aircraft is performed by using a stairway such as a stairway installed inside a boarding door at an open spot unlike a large aircraft using a boarding bridge.
[0003]
In an aircraft that gets on and off at an open spot, blowing of rain from the boarding gate at the time of getting on and off into the cabin is a serious problem. In particular, many aircraft provided with steps behind the door of the boarding gate are configured such that the door opens to the vicinity of the ceiling of the fuselage. Therefore, rain easily blows into the cabin, and the floor around the boarding gate in the cabin is heavily soiled. In addition, the seats provided near the boarding gate may be wetted by the rain and may become unusable. Further, in-flight equipment such as an intercom provided around the boarding gate may be affected by the blown rainwater and may be damaged.
[0004]
In addition, when steps are provided on the back side of the door, there is a problem that rainwater accumulates on the steps when getting on and off, and the accumulated rainwater flows into the cabin when the door is closed. Some steps have a small opening or groove to drain rainwater at the end of the step so that it does not hinder getting on and off, but if the amount of rainwater accumulated in the step is large, It becomes difficult to drain all rainwater from the small openings and grooves.
[0005]
Also, when getting on and off at an open spot, passengers tend to stop at the top of the stairs, and it is necessary to take measures against rain on the stairs.
As a countermeasure against such bad weather, a self-propelled rain guard that covers the boarding steps has been proposed.
[0006]
[Problems to be solved by the invention]
Conventionally proposed self-propelled rain guards need to secure a passage for getting on and off, so the vehicle with power for transportation is attached to either the left or right side of the rain guard. I have. For this reason, it is not possible for a rain guard driver to check the safety of the other side of the rain guard, and when using such a self-propelled rain guard, at least two workers are required for guidance and operation. Are required to do the work. However, in order to improve work efficiency, a device that can be operated by one person is desired.
[0007]
In addition, in order to enable installation by one person, a rain guard that covers the entrance and exit steps with a relatively lightweight sheet material and a frame that can be moved manually has been proposed, but a lightweight rain guard can be used in strong winds. It has the disadvantage of being weak. Further, when such a rain guard is blown by a strong wind, there is a possibility that the aircraft may be damaged.
[0008]
SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a rain guard that can be installed alone. The present invention also provides a rain guard that can be installed alone and can withstand strong winds. The purpose is to provide a guard.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the rain guard of the present invention is a rain guard used at the boarding gate of an aircraft, which can receive a transport vehicle for carrying the rain guard, and is provided at the boarding gate of the aircraft. A main body having a side surface and an upper surface that define a passage having a width and a height capable of receiving a stair to be moved, and an insertion portion into which a claw portion of a transport vehicle is inserted when the rain guard is transported.
[0010]
It is preferable that the rain guard is attached to at least one of the two side surfaces of the main body, and includes a fixing base that fixes the rain guard when the rain guard is installed.
[0011]
Further, the rain guard may include a front bar extending so as to connect the front ends of the two side surfaces, and the insertion portion may be provided on the front bar.
Also, preferably, the main body forms a lower portion of the rain guard, and a base portion having two side portions defining a passage of the rain guard, and a upper portion of the rain guard, and slides on the base portion. It is composed of a guard part which is connected as possible.
[0012]
It is also preferable that the guard portion is provided at a front portion of the guard portion, and includes a body contact portion that contacts the aircraft, and an adjusting unit that adjusts a position of the body contact portion with respect to the body.
[0013]
Adjusting means, a bellows structure portion configured to cover the passage, a cable connected to the upper end of the body contact portion, and a winch for moving the upper end of the body contact portion in the front-rear direction by adjusting the length of the cable. Can be provided.
[0014]
The guard portion is positioned at a first position with respect to the base portion when the rain guard is installed, and is positioned at a second position behind the first position with respect to the base portion when transporting the rain guard. May be configured.
[0015]
It is also possible to provide a lock means for locking the guard portion at the first position or the second position, and an adjuster lock for stably fixing the guard portion to the base portion. A cushioning material may be provided on the front part and the side part of the body contact part.
[0016]
It is also preferable to include first position display means for displaying the position of the rain guard with respect to the longitudinal direction of the aircraft, and second position display means for displaying the position where the rain guard at a predetermined distance from the aircraft should be installed.
[0017]
It is also preferable that a manual operation means for manually moving and operating the rain guard be provided, and that the insertion section be provided with a fall prevention means for preventing the rain guard from falling off from the transport vehicle.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the rain guard of the present invention will be described with reference to the drawings. In the following description, “front” refers to the side of the rain guard that comes into contact with the aircraft, and “up” refers to the side that becomes upper when the rain guard is installed in a normal use state.
[0019]
1A, 1B, and 1C are a front view, a side view, and a rear view, respectively, illustrating an embodiment of the rain guard according to the present invention.
In this embodiment, the rain guard has a width and height inside such that it can receive a haul vehicle used to carry the rain guard and a stair provided at the boarding gate of the aircraft. A body 100 having a side portion and a top portion defining a passage having a height. The rain guard main body 100 mainly includes a base part 200 forming a lower part of the rain guard main body 100 and a guard part 300 forming an upper part of the rain guard main body 100.
[0020]
The base portion 200 has side portions 201 and 202 disposed on both sides of the rain guard body 100 at a predetermined interval so as to define a passage of the rain guard. The side surfaces 201 and 202 include projections 203a and 203b projecting forward, respectively, and the projections 203a and 203b are provided with a front bar 204 extending so as to connect the projections 203a and 203b to each other. The front bar 204 is provided with two claw insertion portions 205 into which claws of a transport vehicle, for example, a forklift are inserted during rain guard transportation. Further, the claw insertion portion 205 is provided with a fall prevention metal fitting (not shown) for preventing the rain guard from falling off the claw of the forklift during transportation. A fixing for mounting a transport vehicle such as a forklift used as a weight, which will be described later, outside one of the side portions 201 and 202 (the side portion 201 in the present embodiment) of the base portion 200. A table 230 is provided.
[0021]
Further, in order to secure the stability at the time of installing the rain guard, a front stopper 240 is provided on the protruding portions 203a and 203b of the base portion 200, and near the rear ends of the side portions 201 and 202 of the base portion 200. , A rear stopper 250 is provided. At the time of transportation, as shown in FIGS. 6 and 7, the front part of the rain guard body 100 is lifted up and transported, so that the front stopper 240 is usually attached to the road surface when the rain guard is installed. It is set at the contact position (lower position). The front stop 240 can be raised to an upper position in the event of a need to manually move the rain guard in an emergency. The rear stopper is locked at the upper position during transportation, and is lowered to the lower position when the main body 100 is fixed. As the front stopper 240 and the rear stopper 250, for example, a locking member configured to activate a built-in spring (not shown) when an operator steps on a step to fix the stopper to a lower position can be used. .
[0022]
The guard part 300 has side parts 301 and 302 arranged on both sides of the guard part 300, and a ceiling guard 303 covering the upper side and the side of the passage. In addition, the guard unit 300 includes, at its front part, an airframe contact unit 400 that is in contact with the airframe of the aircraft, and an adjustment mechanism 500 that adjusts the position of the airframe contact unit 400 relative to the airframe.
[0023]
The guard part 300 is connected to the base part 200 so as to be movable forward and backward relatively. Specifically, as shown in FIG. 2 or FIG. 3, the beam 206 provided on the upper edge of the side surfaces 201 and 202 of the base portion 200 has a U-shaped cross section. A rail 207 is provided on the upper part. On the other hand, the beam 304 provided on the lower edge of the side portions 301 and 302 of the guard portion 300 has a groove portion 306 for accommodating the rail 207 of the base portion. The rail 207 is provided with roller bearings (not shown) on its upper surface and side surfaces, and the guard portion 300 is slidably attached to the base portion 200 by inserting the rail 207 into the groove portion 306. Can be In order to facilitate the operation of the guard section 300, the frame of the guard section 300 is made of a hollow pipe, so that the weight can be further reduced.
[0024]
The guard section 300 can be locked at a predetermined position with respect to the base section 200 by the lock mechanism 320. As shown in FIGS. 1B and 1C, the lock mechanism 320 is fixed to the beam 304.
[0025]
FIG. 2 is an explanatory diagram showing a structure of a lock mechanism 320 for locking the guard portion 300 at a predetermined position with respect to the base portion 200. In the figure, the lock mechanism 320 has a main body 321, a handle 322 for starting and releasing the lock, and a lock pin 323 penetrating the main body 321. The lock mechanism 320 accommodates a spring (not shown) in the main body 321. When the handle 322 is turned sideways as shown by a solid line in FIG. 2A, the spring applies the lock pin 323 to the beam 206. We are energizing toward it. By engaging the lock pin 323 with one of a plurality of holes (indicated by reference numerals 206a, 206b, and 206c in FIG. 1B) provided in the beam 206, the lock mechanism 320 causes the guard portion 300 to move to the base portion. Lock in place at 200. When the operator moves the handle 322 in the direction of the arrow shown in FIG. 2A, the lock pin moves from the inside to the outside of the rain guard body 100, that is, in the direction of the arrow in FIG. 323 is retracted. In this state, the guard part 300 can slide on the rail 207 of the base part 200.
[0026]
FIG. 3 shows an adjuster lock 310 for fixing the guard portion 300 to the base portion 200 in a stable state. The adjuster lock 310 includes an adjuster body 311, a pin 312 penetrating the body 311 from the outside to the inside of the rain guard body 100, and a handle 313 for moving the pin 312 from the outside to the inside or from the inside to the outside. , Which is pressed against the beam 206 by the pin 312 when the pin 312 is moved inward. By rotating the handle 313 in a predetermined direction, the pin 312 is pushed inward, and the press contact portion 314 is pushed out to the position shown by the broken line in FIG. As a result, the press contact portion 314 is pressed against the beam 206. Although not shown, another adjuster lock having a similar mechanism is also provided on the opposite side portion 302. That is, the adjuster lock 310 eliminates the clearance between the base portion 200 and the guard portion 300 by sandwiching the base portion 200 from both sides, thereby eliminating the play between the guard portion 300 and the base portion 200 and stabilizing. Then, the guard part 300 is fixed to the base part 200.
[0027]
FIG. 4 is an explanatory diagram of the structure of the body contact part 400. The body contact portion 400 covers the frame 401 formed to be curved at a predetermined curvature R in the front-rear direction, the cushioning material 402 attached to the front edge and side portions of the frame 401, and the entire body contact portion 400. And a sheet material 403 (FIG. 1B). The cushioning material 402 is made of a material having an elastic recovery force, for example, a material such as a sponge. The body contact section 400 includes an adjustment mechanism provided to adjust the installation position of the body contact section 400 so that the body contact section 400 is installed at an appropriate position with respect to the body.
[0028]
The adjusting mechanism includes a bellows structure portion 500 including a plurality of frame members 501 and a sheet 502 covering the frame member 501 from outside, a cable having one end connected to the upper end 403 of the body contact portion 400, and a cable length as described later. A winch for adjusting the inclination of the bellows structure portion 500 by adjusting the height. Of the plurality of frame members 501 of the bellows structure portion 500, the foremost frame member 501b and the rearmost frame member 501a each include a plurality of wire guides 503. The other end of the cable 504 is connected to a bellows operation winch 505 via a plurality of wire guides 503.
[0029]
Of the plurality of frame members 501, the rearmost frame member 501a is connected to the front ends of the side portions 301 and 302 of the guard portion 300. Each of the plurality of frame members 501 is attached to the beam 304 at the lower end.
[0030]
When the cable 504 is loosened by turning the handle 505a of the bellows operation winch 505 in a predetermined direction, the upper part of the bellows structure portion 500 is inclined forward as shown in FIG. Contact. The movable range of the bellows structure portion 500 can be set in advance by adjusting the size (width, depth) of the fold constituting the bellows structure. In the present embodiment, the maximum inclination angle of the bellows structure portion 500 is set to approximately 30 °. The bellows operation winch 505 is attached to the lower end beam 304 of the side surface portion 301 of the guard portion 300.
[0031]
Although the bellows operation winch 505, the cable 504, and the wire guide 503 are shown only on the side surface portion 301 side in FIG. 1, they are similarly provided on the opposite side surface portion 302 side. By providing the bellows structure portion 500 on both side portions 301 and 302 so that they can be operated separately, even if the rain guard body 100 cannot approach the body vertically, The inclination of the attitude of the body contact portion 400 can be corrected by position adjustment by the bellows structure portion 500.
[0032]
FIG. 6 and FIG. 7 are explanatory diagrams illustrating a transport state of the rain guard main body 100. FIG. As shown in FIGS. 6 and 7, when transporting the rain guard body 100, the guard unit 300 is positioned rearward with respect to the base unit 200 in order to secure an operator's view. In this state, a device generally used for transporting a container or the like, for example, a forklift is put into the rain guard body 100. Since the rain guard body 100 has a passage having a width and a height enough to receive a forklift, the forklift can enter the passage from behind the rain guard body 100. Then, the claw of the forklift is inserted into the insertion portion 205 of the base portion 200. In this state, by operating the forklift, the rain guard main body 100 can be lifted and transported to a desired place.
[0033]
FIG. 6 shows a case where the forklift is used in a state where the claw is pulled out to the maximum. At this time, the guard portion 300 is located at the rearmost position with respect to the base portion 200, and the lock pin 323 of the lock mechanism 320 is inserted into the hole 206a. FIG. 7 shows a case where the forklift is used with the claws pulled. At this time, the guard portion 300 is positioned forward of the base portion 200 as compared with the case of FIG. 6, and the lock pin 323 is inserted into the hole 206b. With this configuration, regardless of the state of the claw of the forklift, the guard portion 300 is fixed to the rear with respect to the base portion 200 during transportation of the rain guard body 100, and the operator of the forklift during transportation of the rain guard. Therefore, the problem of the visibility of the operator does not occur while the rain guard body 100 is being transported. Therefore, there is no need for an instructor to install the rain guard, and the rain guard body 100 can be transported alone to the vicinity of the aircraft.
[0034]
After transporting the rain guard main body 100 close to the body, the guard part 300 of the rain guard main body 100 is positioned at the foremost position (first position) with respect to the base part 200, as shown in FIG. The lock pin 323 of the lock mechanism 320 is inserted into the hole 206c, whereby the guard part 300 is fixed to the base part 200. Then, in this state, the rain guard main body 100 is arranged so that the body contact portion 400 has a predetermined positional relationship with the boarding gate. In order to arrange the rain guard body 100 at a correct position with respect to the body, fine adjustment in the left-right direction (longitudinal direction of the body) is performed using position display means (not shown) such as a laser pointer. The laser pointer is arranged on the front of the rain guard main body 100, and can display the position of the rain guard on the body. The operator can operate the forklift to place the rain guard main body 100 at an appropriate position while checking the position of the rain guard main body 100 indicated on the fuselage by the laser pointer.
[0035]
When the position of the rain guard body 100 with respect to the longitudinal direction of the fuselage is determined, next, the position of the rain guard in the front-rear direction is determined. For this purpose, first, the forklift is advanced to bring the rain guard body 100 closer to the aircraft body to some extent (FIG. 9). Then, the claw of the forklift is operated until the touch sensor 410 provided on the front side of the body contact portion 400 comes into contact with the body to bring the rain guard body 100 close to the body (FIG. 10). The touch sensor 410 (second position display means) indicates a position at a predetermined distance from the aircraft on which the rain guard body 100 is to be installed. When the touch sensor 410 comes into contact with the machine body, the operation of the claw of the forklift is stopped by the operator, and the rain guard body 100 is lowered to that position. By using the laser pointer and the touch sensor 410 in this manner, even a single person can place the rain guard at a more accurate position with respect to the aircraft.
[0036]
After placing the rain guard in an appropriate position, the bellows structure portion 500 is tilted forward by operating the handle 505a of the bellows operation winch 505 (FIG. 11). By this operation, the cushioning material 402 provided at the front end of the body contact portion 400 is pressed against the body, and it is possible to prevent rain or the like from entering through a gap between the body and the rain guard body 100.
[0037]
Since the curvature R of the body contact portion 400 is fixed, the shape of the body and the curved shape of the body contact portion 400 may not fit depending on the type of the aircraft. However, according to the above configuration, it is possible to cope with the shape difference between the models of the passenger aircraft only by adjusting the position of the body contact part 400 so that the cushioning member 402 is pressed against the body.
[0038]
When the rain guard main body 100 is located at a desired position, the forklift is moved from the passage of the rain guard main body 100 onto the fixed base 230 provided on the base 200 of the rain guard main body 100. FIG. 12 shows a state where a forklift is placed on the fixed base 230. The forklift placed on the fixed base 230 is used as a weight when the rain guard body 100 is installed. By using such weights, the rain guard body 100 can withstand strong winds.
[0039]
After installation of the rain guard body 100, it is necessary to consider that the vertical position of the body changes as compared with the time of installation when the passenger gets on and off. In the present embodiment, the vertical movement damper 404 is provided between the vicinity of the front end of the body installation part 400 and the extension part extending from the bellows 501a of the bellows structure part 500, thereby absorbing the movement of the body in the vertical direction. It is possible to prevent a gap from being generated between the rain guard main body 100 and the machine body, and prevent the rain guard body 100 from damaging the machine body.
[0040]
An emergency operation bar can be provided in the case where the rain guard body 100 must be manually moved due to a failure of the transport device or the like. The emergency operation bar can be configured to be attached to, for example, the rear ends of the side surfaces 201 and 202 of the base 200. In addition, wheels 260 to 290 are provided below the rain guard body 100 so that the operator can move the rain guard using the emergency operation bar in an emergency. In this case, a handle insertion portion for attaching an emergency operation bar is provided in advance at the rear end of the side surfaces 201 and 202. It is preferable that the emergency operation bar is stored in a predetermined storage place provided on the side surface portion 201 so as not to hinder normal use.
[0041]
In this embodiment, a groove for receiving the rail 207 of the base portion 200 is provided at the lower end of the side portions 301 and 302 of the guard portion 300 so that the guard portion 300 slides in the front-rear direction with respect to the base portion 200. However, as long as the guard portion 300 can be moved in the front-rear direction, various other structures can be adopted for a connection portion between the guard portion 300 and the base portion 200.
[0042]
Further, in the present embodiment, the positions of the bellows structure adjusting mechanism 500 and the body contact portion 400 are simultaneously adjusted by operating the bellows operation winch 505. However, separate operation handles are provided, and the bellows structure adjusting mechanism 500 is provided. The inclination and the inclination of the machine body contact section 400 may be operated independently of each other.
[0043]
It is also preferable to provide a lighting device for illuminating the inside of the passage at an appropriate place on the upper surface of the passage (indicated by reference numeral 330 in FIG. 1C). By providing internal lighting, it is possible to further improve the safety during transportation and installation of the rain guard.
[0044]
【The invention's effect】
As described above, according to the present invention, the width and height of the rain guard, which can receive the transport vehicle for transporting the rain guard, and can receive the stairs provided at the boarding gate of the aircraft, are provided. Since the main body having a side surface and an upper surface that defines a passage having, and an insertion portion into which the claw portion of the transport vehicle is inserted when the rain guard is transported, the transport vehicle is used at the passenger boarding gate of the passenger aircraft, It becomes possible to install a rain guard alone.
[0045]
In addition, since a fixing base is attached to at least one of the two side surfaces of the main body and fixes the rain guard when the rain guard is installed, the rain guard can be transported on the fixing base when the rain guard is installed. The transport vehicle used sometimes can be placed. At this time, since the transport vehicle is used as a weight of the rain guard, it is possible to provide a rain guard that can withstand strong winds.
[0046]
Also, the main body constitutes a lower portion of the rain guard and has a base portion having two side portions defining a passage of the rain guard, and a guard portion constituting the upper portion of the rain guard and slidably connected to the base portion. , It is possible to secure a wide field of view for the operator during rain guard transport regardless of the state of the transport vehicle. Therefore, it is possible to safely carry the rain guard alone without the need for a guide.
[Brief description of the drawings]
FIG. 1 is a front view, a side view, and a rear view showing an embodiment of a rain guard according to the present invention.
FIGS. 2A and 2B are a front view and a cross-sectional view illustrating a structure of a lock mechanism.
3A and 3B are a front view and a cross-sectional view illustrating a structure of an adjuster lock.
FIG. 4 is an explanatory diagram illustrating a structure of an adjustment mechanism.
FIG. 5 is an explanatory diagram illustrating an operation of an adjustment mechanism.
FIG. 6 is an explanatory view showing a state in which a rain guard is carried by a carrying vehicle.
FIG. 7 is an explanatory diagram showing a state in which the rain guard is carried by the carrying vehicle.
FIG. 8 is an explanatory view showing a state in which a rain guard is carried by a carrying vehicle.
FIG. 9 is an explanatory view showing a position adjustment operation of the rain guard by the transport vehicle.
FIG. 10 is an explanatory diagram showing a position adjustment operation of the rain guard by the transport vehicle.
FIG. 11 is an explanatory diagram showing a position adjustment operation of the rain guard by the transport vehicle.
FIG. 12 is an explanatory diagram showing a position adjustment operation of the rain guard by the transport vehicle.
[Explanation of symbols]
Reference Signs List 100 Main body 200 Base part 201, 202 Side part 204 Front bar 205 Insertion part 230 Fixing base 300 Guard part 301, 302 Side part 310 Adjuster lock 320 Lock mechanism 400 Body contact part 402 Buffer material 410 Touch sensor 500 Bellows structure part 505 Bellows operation winch

Claims (14)

A rain guard used at an aircraft gate, which has a width and a height capable of receiving a transport vehicle for transporting the rain guard and a stair provided at the aircraft gate. A body having sides and a top surface defining a passage having;
An insertion portion into which the claw portion of the transport vehicle is inserted when the rain guard is transported. The rain guard according to claim 1, further comprising a fixing base attached to at least one of the two side surfaces of the main body and fixing the rain guard when the rain guard is installed. The rain guard according to claim 1, further comprising a front bar extending so as to connect front ends of the two side surfaces, wherein the insertion portion is provided on the front bar. The body is
A base portion that forms a lower portion of the rain guard and has two side portions that define a passage of the rain guard; and a guard portion that forms an upper portion of the rain guard and is slidably connected to the base portion. The rain guard according to claim 1, wherein the rain guard is configured. The guard portion,
A fuselage contact portion that is provided at a front portion of the guard portion and contacts the aircraft;
5. The rain guard according to claim 4, further comprising adjusting means for adjusting a position of the body contact portion with respect to the body. The adjusting means,
A bellows structure portion configured to cover the passage;
A cable connected to an upper end of the body contact portion;
The rain guard according to claim 5, further comprising a winch that moves an upper end of the body contact portion in the front-rear direction by adjusting a length of the cable. The guard portion is positioned at a first position with respect to the base portion when the rain guard is installed, and is positioned at a second position behind the first position with respect to the base portion when transporting the rain guard. The rain guard according to any one of claims 4 to 6, wherein the rain guard is configured to be operated. The rain guard according to claim 7, further comprising a lock unit configured to lock the guard unit at the first position or the second position. The rain guard according to any one of claims 4 to 8, further comprising an adjuster lock for stably fixing the guard portion to the base portion. The rain guard according to claim 5, wherein a cushioning material is provided at a front part and a side part of the body contact part. The rain guard according to any one of claims 1 to 10, further comprising first position display means for displaying a position of the rain guard with respect to a longitudinal direction of the aircraft. The rain guard according to any one of claims 1 to 11, further comprising second position display means for displaying a position where the rain guard is to be installed at a predetermined distance from the aircraft. The rain guard according to any one of claims 1 to 12, further comprising a manual operation unit for manually moving and operating the rain guard. The rain guard according to any one of claims 1 to 13, wherein the insertion portion includes a fall prevention unit that prevents the rain guard from falling off from the transport vehicle.

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