JP4100974B2 - Means for inspecting cargo carriers - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is a transport system equipped with an unloading device that moves a push plate for unloading by automatic operation in order to discharge the cargo from the rear of the loading platform inside the loading platform of a vehicle that mainly transports loose cargo. The present invention relates to means for inspecting the inside of a cargo carrier vehicle so that an operator can easily inspect and maintain the inside of the cargo bed of the vehicle.
[0002]
[Prior art]
Conventionally, in a vehicle (truck) that mainly loads and transports bulk cargo directly on the carrier, in order to efficiently load and unload the cargo, for example, in a truck that loads and transports earth and sand, etc., a grab bucket is used. The loading work to the loading platform is performed efficiently, and a method is adopted in which the loading platform is tilted and discharged when unloading. In addition, when carrying bulk goods (for example, chip material) with a small apparent specific gravity, a truck with a long bed is used because the loading capacity becomes large. When handling such loose items, it is structurally impossible to tilt the loading platform to discharge the load, so the vehicle is placed on a dedicated platform and the entire vehicle is tilted and loaded on the loading platform. Measures are taken to discharge the cargo from the rear end of the platform.
[0003]
By the way, as a means of improving the efficiency of the work of unloading and unloading the load from the truck bed, in addition to tilting the bed, the partition plate is moved from the cab side toward the rear end on the bed, and the load is gradually loaded. A method for lowering is already disclosed. For example, as known from Japanese Patent No. 30625568, a slide plate that can move back and forth from the cabin side toward the rear end on the cabin side, and the side end can be locked to the left and right cargo bed side plates on this slide plate, A partition plate that moves only when the locking plate is moved and moves with the sliding plate when the locking plate is unlocked, and moves the partition plate together by advancing the slide plate to push the load and engage the partition plate. An unloading apparatus is described in which the slide plate is moved backward to correspond to the next forward movement after the stop state, and the load is sequentially pushed out to the rear of the loading platform and discharged by repeating this movement.
[0004]
[Problems to be solved by the invention]
When adopting such a system in which the partition plate (push plate) is intermittently moved and extruded and discharged in a state where the load is sequentially received and supported, in order to facilitate the operation of the slide plate and the push plate in the cargo bed In addition, it is necessary to go up on the loading platform and perform maintenance. However, in general, people enter and exit the cargo bed by opening the rear door, so that the operator or driver can go to the rear of the cargo bed after getting out of the vehicle for inspection and maintenance. There is a problem that it is very inconvenient because it opens the door and enters the inside. Also, the ease of inspection behind the push plate is required.
[0005]
The present invention has been made to solve such problems, and can enter and exit from the front of the loading platform, and an inspection door is attached to the push plate disposed inside the loading platform, It is an object of the present invention to provide means for checking the inside of a cargo carrier vehicle that facilitates inspection and maintenance of the cargo carrier.
[0006]
[Means for solving the problems and actions / effects]
In order to achieve the above-mentioned object, the inspection means in the loading platform of the cargo carrier vehicle according to the present invention comprises:
In a transport vehicle provided with a load receiving slide plate that reciprocates from the cab side toward the rear end of the loading platform in the loading platform, and a push plate that is loaded and unloaded on the loading slide plate.
A doorway and its door are provided on the outer surface of the cab side of the loading platform, and an inspection port provided with a door that can be opened and closed from the back side to the front side is provided on the push plate (first invention). ).
[0007]
In the present invention, an entrance door is provided on the outer surface of the loading platform near the cab side, and by opening the entrance door, it is possible to get into the interior of the front end side of the loading platform immediately after getting out of the cab. Since it can reach the back space of the push plate placed on the load receiving slide plate that reciprocates back and forth, it is possible to inspect and maintain the portion where the push plate is provided behind and the drive means of the load receiving slide plate. . Moreover, when the door of the inspection port provided in the push plate is pushed open to the front side of the push plate, the inspection and maintenance up to the front surface of the push plate and the rear end of the loading platform can be performed.
[0008]
According to the present invention, in order to perform inspection and maintenance inside the loading platform, it is possible to enter the interior from the front side without opening the rear door by going to the rear of the loading platform, and the inside of the loading platform by the inspection port provided on the push plate Thus, it is possible to freely move between the cab side and the body side (the load storage side of the loading platform), and it is possible to facilitate the inspection and maintenance.
[0009]
In the above invention, the unloading device is controlled so that it cannot be operated at least in a state where the doorway on the side of the loading platform is open (second invention). By doing so, there is an effect that it is possible to avoid a problem caused by the operation of the unloading device in a state where a person is in the loading platform for inspection work or the like.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Next, a specific embodiment of the cargo bed vehicle checking means in the cargo carrier vehicle according to the present invention will be described with reference to the drawings.
[0011]
FIG. 1 is an overall vertical cross-sectional schematic diagram of a transport vehicle provided with the in-car bed checking means of the present embodiment. 2 is a plan view of the transport vehicle, FIG. 3 is a rear view of the push plate, and FIG. 4 is an enlarged sectional view taken along line AA of FIG.
[0012]
A carrier vehicle 1 (hereinafter simply referred to as a truck 1) having an in-car bed inspection means for a cargo carrier vehicle according to the present embodiment is a long-body type having a long carrier 2 that mainly carries loose cargo. The loading platform 2 is provided with a push plate 4 that pushes and unloads the load from the cab side toward the rear end and a load receiving slide plate 7 that is reciprocated by a required distance by its driving means 5 (hydraulic cylinder). The upper and lower side plates 2a, 2a are raised, and an openable / closable canopy 6 (top plate) is provided at the top, and a rear door 8 is provided at the rear end.
[0013]
The load receiving slide plate 7 provided in the lower part of the loading platform 2 is moved forward and backward by about one stroke by a driving means 5 (hydraulic cylinder) installed at the center in the width direction on the cab 3 side of the vehicle body. On the upper side of the load receiving slide plate 7, a push plate 4 is movably mounted, and latch claws 10 (see FIG. 3) that can be switched back and forth on both upper shoulders 4a, 4a of the push plate 4, respectively. When the load receiving slide plate 7 shifts to the return stroke by engaging with the latch teeth 9 disposed at the required pitch along the both side plates 2a, 2a of the loading platform 2, the press plate The function of preventing the return of 4 can be exhibited.
[0014]
An entrance 11 to the inside of the loading platform 2 is provided on one of the outer surfaces of the loading platform 2 near the cab 3, and an entrance door 12 that is hinged near the cab and can be opened and closed is attached to the entrance 11.
[0015]
An inspection port 15 is opened at the center of the push plate 4, and an inspection port door 16 that can be opened and closed from the back side of the push plate 4 is attached to the inspection port 15. The inspection port door 16 is provided with a locking device 17 on the back surface side, and a handle 18 is attached to the upper side of the attachment portion of the locking device 17 so that the opening / closing operation can be easily performed. Further, the inspection port door 15 is attached with a sealing member 19 formed of an elastic body at an edge portion that comes into contact with a contact plate 15 ′ provided at the opening edge of the inspection port 15 when the door is closed, so that the door is closed. Thus, the bulk cargo extruded in contact with the front surface of the push plate 4 is prevented from entering the back surface side from the inspection port 15.
[0016]
Further, although not shown, a limit switch or a non-contact switch is provided at the entrance / exit 11 on the outer surface of the loading platform 2 and the entrance / exit door 12 is not closed, the unloading device (the driving means for the load receiving slide plate 7). 5) is electrically connected to the control unit so that it cannot be operated. The entrance door 12 may be opened from the inside. In addition, if a sensor (such as a switch) is attached so that the unloading device cannot be operated unless the inspection port door 16 of the inspection port 15 provided in the push plate 4 is also closed, a double check can be made at the doorway 11. And an unexpected situation that occurs when an operator who enters the bed for inspection is left behind can be prevented.
[0017]
In this embodiment configured as described above, an entrance / exit 11 is provided at a position near the cab 3 on the outer side of the loading platform 2 so as to be able to enter and exit the loading platform, for example, for checking the unloading device. In order to enter the inside of the loading platform 2, when the entrance door 12 is opened and the interior of the loading platform 2 is entered, the space portion just behind the push plate 4 is formed, so that the drive means 5 of the load receiving slide plate 7 remains as it is. The internal mechanism relating to the state of a certain hydraulic cylinder and the movement of the push plate 4 can be checked. Further, if the inspection port door 16 is opened by unlocking the lock 17 of the inspection port 15 provided on the push plate 4, it can come out from the inspection port 15 to the front side of the push plate 4. Therefore, it is possible to easily inspect or maintain the inside of the loading platform 2. If the inspection port door 16 is closed and locked, the inspection port 15 is sealed by the seal member 19 attached to the inner edge of the door, so that even if the cargo is loose, it enters the back from the inspection port 15. There is nothing.
[0018]
In addition, as described above, the entrance to the inside of the loading platform 2 is provided at the side of the cab side, so that a driver or a work assistant can check the interior of the loading platform at a position closest to the cab. Since it is possible to enter and exit the cargo bed, it is possible to get into the cargo bed quickly, and since the check plate 15 is provided in the push plate 4, the back and forth of the push plate 4 is freely accessible. This makes it easier to work. Further, when an operator enters the loading platform for inspection or the like, the unloading device is regulated so as not to operate, so that the load receiving slide plate 7 is accidentally placed while the person is inside. It does not work and does not cause unexpected situations.
[0019]
In the above description, the entrance / exit 11 provided on the cargo bed side is provided on one side, but may be provided on both the left and right sides as necessary. Further, the inspection port 15 provided in the push plate 4 is not specified at the center portion, and may be provided by being shifted to either the left or right.
[Brief description of the drawings]
FIG. 1 is an overall longitudinal schematic view of a transport vehicle provided with an in-car bed checking means of the present embodiment.
FIG. 2 is a plan view of the transport vehicle according to the present embodiment.
FIG. 3 is a rear view of the push plate.
4 is an enlarged cross-sectional view taken along the line AA in FIG. 3;
[Explanation of symbols]
1 Transport vehicle (truck)
2 Loading platform 2a Loading platform side plate 3 Driver's cab 4 Pushing plate 5 for unloading Drive means (hydraulic cylinder)
6 Loading platform canopy (top plate)
7 Load receiving slide plate 8 Rear door 11 Loading door 12 Entrance door 15 Inspection port 16 Inspection port door 19 Sealing member

Claims (2)

In a transport vehicle provided with a load receiving slide plate that reciprocates from the cab side toward the rear end of the loading platform in the loading platform, and a push plate that is loaded and unloaded on the loading slide plate.
Inspecting the inside of a cargo carrier vehicle, wherein an entrance and its door are provided on the outer surface of the cab side of the cargo bed portion, and an inspection port provided with a door that can be opened and closed from the back side to the front side is provided on the push plate. means. 2. The loading platform inspection means for a cargo carrying vehicle according to claim 1, wherein the loading / unloading device is controlled so that the loading / unloading device cannot be operated at least in a state where the entrance door on the side surface of the loading platform is opened.

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