JP2003276517A - Marker device of working vehicle of packing box loading/ unloading type - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a marker device of a truck capable of always securing marker visibility without being affected by a shape of a packing box. <P>SOLUTION: A display device 51 and a warning lamp 52 of a marker device 5 for displaying a marker toward the back side of a car body during work of the truck 1 where the packing box N is loaded or unloaded horizontally to the car body 10 are mounted exchangeably between a car body side mounting part 54 of the front part of the car body or a packing box side mounting part 55 of the back end of the packing box. When the display device is mounted to the car body side mounting part, the other end of an exchangeable cable from the display device is connected to a base side cable. When a marker device body is mounted to the packing box side mounting part, the other end of the exchangeable cable 62 is connected to the base side cable 61 via an extension cable 63. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a load box detachable work vehicle for removing a load box such as a container in a substantially horizontal direction with respect to a vehicle body, and a sign device for displaying a sign toward the rear of the vehicle body during work. In particular, the present invention relates to measures for improving the visibility of displayed signs.

[0002]

2. Description of the Related Art Conventionally, as a work box removable work vehicle, for example, as disclosed in Japanese Utility Model Laid-Open No. 6-39575,
A horizontally detachable container that is detachably mounted to the vehicle body is supported by the support legs on the ground in a state where the container is detached from the vehicle body, and the vehicle body is moved forward so that the container is detached from the vehicle body in a substantially horizontal direction. Types are known.

[0003] In such a work box detachable work vehicle, work may be performed whether the container is loaded with a container or the container is not loaded with a container. A sign device is installed to display the sign toward. In that case,
The marking device is provided in the front part of the vehicle body that does not interfere with the attachment and detachment of the container because the container is mounted on the vehicle body by moving the vehicle body rearward.

[0004]

However, depending on the shape of a packing box such as a container mounted on a vehicle body, even if a marker is displayed toward the rear of the vehicle body during work by a marker device provided on the front portion of the vehicle body, The sign may be difficult to see because it is blocked from the rear of the vehicle body, and the visibility of the sign may be significantly deteriorated.

The present invention has been made in view of the above points, and an object thereof is to always ensure the visibility of a sign without being affected by the shape of a packing box such as a container. An object of the present invention is to provide a sign device for a work box removable work vehicle.

[0006]

In order to achieve the above-mentioned object, a solution means provided by the invention according to claim 1 is a supporting leg in a state where a load box detachably mounted on a vehicle body is separated from the vehicle body. In the work box detachable work vehicle, which is supported by the vehicle body and moves the car body to dismount the carton box in a substantially horizontal direction with respect to the car body, it is premised on a sign device that displays a sign toward the rear of the car body during work. . Then, a vehicle body side mounting portion for removably mounting the marking device body is provided at the front part of the vehicle body, and a luggage box side mounting portion for removably mounting the labeling device body is provided at the rear end portion of the packing box. Further, the sign device body is removably attached to the vehicle body side mounting portion or the luggage box side mounting portion so that the marker is displayed toward the rear of the vehicle body during work.

Due to this specific matter, when the work is carried out without a load box such as a container mounted on the vehicle body or when the work is carried out with a relatively short load box, the front side of the vehicle body side Not only when the main body of the marking device is attached to the mounting part and the packing box is not loaded, even if a short packing box is loaded, the sign is not blocked from the rear of the vehicle body, ensuring the visibility of the sign. It becomes possible to obtain.

On the other hand, when performing work with a tall cargo box such as a container mounted on the vehicle body, the marking device body is mounted from the vehicle body side mounting portion at the front of the vehicle body to the luggage box side at the rear end of the luggage box. The sign is not blocked from the rear of the vehicle body by being replaced with a part, the sign is very easy to see without being affected by the shape of the packing box, and the visibility of the sign can be always ensured.

In particular, the following structure is provided for the cable for displaying the sign on the sign device main body.

That is, according to the second aspect of the present invention, a cable for displaying a sign on the marking device main body is attached to the replacement cable whose one end is connected to the marking device main body, and the marking device main body is attached to the vehicle body side mounting portion at the front of the vehicle body. The base side cable to which the other end of the replacement cable is connected, and the other end is connected to the base side cable when the labeling device main body is attached to the load box side attachment part at the rear end of the load box. The other end of the replacement cable is connected to the end, and the extension cable is configured to extend to the rear end of the vehicle body so as to correspond to the luggage box side attachment portion of the rear end portion of the luggage box.

According to this specific matter, when the marking device main body is attached to the vehicle body side mounting portion on the front part of the vehicle body, if the other end of the replacement cable whose one end is connected to the marking device main body is connected to the base portion side cable, A sign can be displayed on the sign device body at the front of the vehicle body.

On the other hand, when the marking device main body is attached to the luggage box side mounting portion at the rear end of the packaging box, one end of the extension cable is connected to the base side cable and the replacement cable whose one end is connected to the marking device body. If the other end of is connected to the other end of the extension cable, it is possible to display a sign on the sign device body at the rear end of the packing box.

Thus, it becomes possible to easily and quickly carry out the cable arranging work for the marking device main body which has been replaced with the vehicle body side attachment portion at the front portion of the vehicle body or the luggage box attachment portion at the rear end of the luggage box.

On the other hand, according to the third aspect of the present invention, a cable for displaying a sign on the marking device main body is a replacement cable whose one end is connected to the marking device main body and a vehicle body corresponding to the vehicle body side mounting portion at the front of the vehicle body. A cable reel that is provided in the front part and to which the other end of the replacement cable is connected and the base part side cable is wound up so that it can be unwound, and the marking device main body is attached to the vehicle body side attachment part in the front part of the vehicle body. When the base side cable is wound to the winding position, the other end of the replacement cable is connected, while the labeling device body is attached to the luggage box side attachment part at the rear end of the packaging box. The other end of the replacement cable is connected in the unwound state.

Due to this particular matter, when the marking device body is attached to the vehicle body side mounting portion on the front part of the vehicle body, the marking device body is wound with the base side cable wound on the cable reel in the winding position. By connecting the other end of the replacement cable whose one end is connected to the base side cable, it is possible to display the sign on the sign device body in the front part of the vehicle body.

On the other hand, when the marking device main body is attached to the luggage box side attachment portion at the rear end of the packaging box, one end of the marking device body is unwound with the base side cable of the cable reel being unwound to the unwinding position. If the other end of the connected replacement cable is connected, it is possible to display the marker on the marker main body at the rear end of the packing box.

As a result, the long base-side cable can be easily assembled, and the base-side cable can be accommodated compactly without being bulky.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

<First Embodiment> FIGS. 1 to 3 show
1 shows a truck as a work box removable work vehicle equipped with a marking device.

1 to 3, a vehicle body 10 of a truck 1 includes a pair of left and right main frames 11 extending in the front-rear direction of the vehicle body 10, and a cabin 12 is provided at a front portion of each main frame 11. Each mainframe 1
A luggage box N is detachably mounted on the rear portion of the vehicle 1 via a plurality of pairs of left and right luggage box pedestals 13, 13. Then, as shown in FIGS. 4 to 7, the cargo box N includes a tank T that stores water and a sprinkler S that sprinkles the water in the tank T to the ground.

Further, as shown in FIGS. 1 to 3, a horizontal attaching / detaching device for attaching / detaching a cargo box N to each main frame 11 in a substantially horizontal direction on the main frame 11 via each cargo box cradle 13. Two are provided. This horizontal desorption device 2
Are connection beams 21 and 21 which are provided so as to connect the main frames 11 and 11 at both front and rear positions of the main frame 11 and which are supported so as to be vertically movable.
And four hydraulic cylinders 22, which are provided between the left and right ends of each connecting beam 21 and the main frame 11 and move the connecting beams 21 up and down with respect to the main frame 11 (packing box cradle 13). Is equipped with.

On the other hand, as shown in FIGS. 4 and 5, a pair of left and right support legs C are provided at both front and rear positions of the bottom of the luggage box N.
a (... appearing in FIGS. 4 and 5) are provided.

Further, as shown in FIGS. 1 and 2, at four locations on the main frame 11 corresponding to the four corners of the packing box N, the packing box N mounted on the main frame 11 can be locked and unlocked. A locking device 3 for securing is provided. The lock device 3 is a known device used for transporting a marine container, and projects from four locations on the main frame 11 with respect to a keyhole (not shown) at the bottom of the cargo box N when the cargo box N is mounted. While the hook-shaped lock body (not shown) is inserted, the lock body is fixed to the inside of the key hole by rotating the lock body about 90 ° by the handle 31, while the load box N is detached when the load box N is detached. By rotating the lock body in the keyhole at the bottom by approximately 90 ° with the handle 31, the locking of the lock body in the keyhole is released. in this case,
The lock body is inserted into or removed from the key hole from above and below.

Here, the main frame 11 of the truck 1
The procedure for loading and unloading the packing box N with respect to will be described.

First, when the luggage box N is to be disengaged from the main frame 11 of the truck 1, the lock by the lock device 3 is released, and the luggage box N is separated from the vehicle body 10. That is, the lock body in the keyhole at the bottom of the packing box N is rotated by about 90 ° by the handle 31, thereby releasing the lock of the lock body in the keyhole.

Then, the hydraulic cylinders 22 of the horizontal attaching / detaching device 2 are extended to raise the front and rear connecting beams 21, 21 with respect to the main frame 11. At this time, the lock body of each lock device 3 is disengaged from the keyhole at the bottom of the luggage box N.

After that, each support leg Ca is fixed in a vertical state (state shown in FIG. 4). Then, the hydraulic cylinders 22 of the horizontal detaching device 2 are contracted to connect the front and rear connecting beams 21,
21 is lowered to support the cargo box N on the ground by each support leg Ca, and in this state, the truck 1 is moved forward to disengage the cargo box N from the vehicle body 10 in a substantially horizontal direction.

On the other hand, when the luggage box N is mounted on the main frame 11 of the truck 1, the left and right support legs Ca from the rear direction with respect to the luggage box N supported by the respective support legs Ca.
The truck 1 is retracted so that each main frame 11 (vehicle body 10) is inserted therebetween.

Then, the hydraulic cylinders 22 of the horizontal attaching / detaching device 2 are extended to raise the front and rear connecting beams 21 and 21, and the cargo box N is raised by the front and rear connecting beams 21 and 21 in place of the support legs Ca. . Then, each support leg C
Store a (state shown in FIG. 5). After that, the hydraulic cylinders 22 of the horizontal attaching / detaching device 2 are contracted to lower the front and rear connecting beams 21 and 21, and the packing box N is moved to the main frame 11
Mount from above in a substantially horizontal direction. At this time, the lock body of each lock device 3 is inserted into the keyhole at the bottom of the luggage box N, and the lock body of each lock device 3 is rotated by about 90 ° by the handle 31 to fix the lock body in the keyhole. The packing box N is fixed on the main frame 11.

Further, as shown in FIGS. 1, 2, 5, and 6, a shovel-shaped snow plow 4 for scraping snow or the like is provided in front of the vehicle body 10 of the truck 1.

As a characteristic part of the present invention, as shown in FIGS. 8 and 9, the front portion of the vehicle body 10 (cabin 1
Immediately after 2), a signing device 5 is provided which displays a sign toward the rear of the vehicle body 10 during work. The sign device 5 includes a display device 51 on the rear surface and a warning light 52 installed on the upper surface of the display device 51. Power is supplied to the labeling device 5 via a power cable (not shown), and a display pattern display command is issued to the display device 51 via a control cable (not shown). The indicator is displayed on the display device 51 by the power cable and the control cable. One end of the power cable is track 1
Battery (not shown) of the control cable, one end of the control cable is connected to a wired operating device (not shown), and the other end of the power cable is at the other end of the control cable. The cable 6 is assembled into one.

The display pattern of the display device 51 is a sign according to the work status, for example, a sign according to the work status of snow removal by the snow plow 4, or the sprinkler S in the packing box N mounted on the vehicle body 10. Signs are displayed according to the work status of watering by.

As shown in FIGS. 1 to 3, a rectangular frame-shaped vehicle body side mounting portion 54 is provided at the front portion of the vehicle body 10 (immediately after the cabin 12). This body side mounting part 5
4 is located above the cabin 12 and has bolt holes (not shown) through which bolts 51b protruding from the front surface of the display device 51 can be inserted, and is fastened by screwing a nut (not shown). Then, the display device 51 is attached.

Further, as shown in FIGS. 4, 5 and 7, at the rear end of the luggage box N (immediately after the tank T), a rectangular box-shaped attachment portion 55 on the luggage box side is provided. The packing box side mounting portion 55 is located at substantially the same height as the vehicle body side mounting portion 54, and bolt holes (not shown) through which the bolts 51b protruding from the front surface of the display device 51 can be inserted. The display device 51 is attached by fastening it by screwing a nut (not shown). That is, the display device 51 is replaceable with respect to the vehicle body side mounting portion 54 or the luggage box side mounting portion 55 so that the sign is displayed toward the rear of the vehicle body during work. In this case, replacement of the display device 51 with the vehicle body side mounting portion 54 or the luggage box side mounting portion 55 is hung by a crane (not shown) and transferred.

As shown in FIGS. 1 to 3, the cable 6 includes a power supply cable extending from a battery (not shown) of the truck 1 and a control cable extending from a wired operating device in one body side. A base side cable 61 extending to a front side position of the packing box N corresponding to the mounting portion 54, a replacement cable 62 having one end connected to the display device 51, and a packing box at the front part of the vehicle body 10 as shown in FIGS. 10 and 11. N
An extension cable 63 extending from the front side position to the rear end position of the load box N corresponding to the load box side attachment portion 55 at the rear end of the load box N is provided. At the tip of the base side cable 61 (the other end side of the cable 6), the other end of the replacement cable 62, and both ends of the extension cable 63, a detachable coupler 64,
... is attached. Then, as shown in FIGS. 1 to 3, when the display device 51 is attached to the vehicle body side attachment portion 54 at the front of the vehicle body 10, the other end of the replacement cable 62 is connected to the coupler 64, It is designed to be connected via 64. Further, as shown in FIGS. 10 and 11, when the display device 51 is attached to the luggage box side attachment portion 55 at the rear end of the luggage box N, one end of the extension cable 63 is connected to the tip of the base side cable 61 and the coupler 64 is attached. , 64, and the other end of the replacement cable 62 is connected to the other end of the extension cable 63 via the couplers 64, 64.

Therefore, in the above-described embodiment, as shown in FIGS. 1 to 3, the snow blower 4 performs snow removal work in a state where the luggage box N having the tall tank T is not mounted on the vehicle body, and When performing work with the work equipment in the luggage box with the low luggage box mounted, the display device 51 is attached to the vehicle body side attachment portion 54 at the front portion of the vehicle body 10 with the bolts 51b and nuts. Then, the base side cable 61
Attach the other end of the replacement cable 62 to the tip of the coupler 64, 6
By connecting through 4, the wired operating device displays a sign according to the work status, for example, a sign according to the work status of snow removal by the snow plow 4. As a result, the sign displayed on the display plate of the display device 51 is not blocked from the rear of the vehicle body 10 not only when the load box is not loaded but also when the short load box is loaded, and the sign is visually recognized. It is possible to secure the sex.

On the other hand, as shown in FIGS. 10 and 11,
When performing the water spraying work by the water spraying device S in a state where the cargo box N equipped with the tall tank T is mounted on the vehicle body, the couplers 64, 64 of the tip of the base side cable 61 and the other end of the replacement cable 62 are connected. After releasing the connection through the bolts 51b, the nuts are loosened for the bolts 51b to remove the display device 51 from the vehicle body side mounting portion 54 at the front of the vehicle body 10, and the removed display device 51 is hung by a crane. The packing box N is transferred to the rear end, and the display device 51 is mounted on the packing box side mounting portion 55 with each bolt 51b and nut. Then, one end of the extension cable 63 is attached to the tip of the base side cable 61 by a coupler 64,
By connecting the other end of the extension cable 63 to the other end of the replacement cable 62 via the couplers 64, 64, the display device 51 is loaded from the vehicle body side mounting portion 54 at the front portion of the vehicle body 10. It is replaced with the packing box side mounting portion 55 at the rear end of the box N, and a marker according to the work situation is displayed by a wired operating device.
That is, a sign corresponding to the sprinkling work status of the water in the tank T by the sprinkler S is displayed. As a result, the sign is
0 It is not blocked from the rear, the sign is very easy to see without being affected by the shape of the packing box N equipped with the tall tank T, and the visibility of the sign can always be secured.

Moreover, the vehicle body side mounting portion 54 at the front of the vehicle body 10
If the other end of the replacement cable 62 from the display device 51 is connected to the base side cable 61 via the couplers 64, 64 when the display device 51 is attached to the display device 51, the display device 51 can display the marker on the front part of the vehicle body. On the other hand, when the display device 51 is attached to the luggage box side attachment portion 55 at the rear end of the luggage box N, one end of the extension cable 63 is connected to the base side cable 61 via the couplers 64, 64, and the extension cable If the other end of the replacement cable from the display device 51 is connected to the other end via the couplers 64, 64, the marker can be displayed on the marker main body at the rear end of the packing box.
The cable 6 can be installed easily and in a short time on the display device 51 replaced with the vehicle body side attachment portion 54 at the front portion of the vehicle body 10 or the luggage box side attachment portion 55 at the rear end of the luggage box N.

<Second Embodiment> Next, the second embodiment of the present invention will be described.
The embodiment will be described with reference to FIGS. 12 to 16.

In this embodiment, the configurations of the luggage box and the cables mounted on the vehicle body are changed. The other configurations except the packing box and the cables are the same as in the case of the first embodiment, and the same parts are denoted by the same reference numerals and the description thereof will be omitted.

That is, in this example, as shown in FIG. 12, the packing box N'sprays the hopper H for storing the wet salt agent as an antifreezing agent and the wet salt agent in the hopper H onto the ground. And a wet salt spraying device P. Also, FIGS.
Also, as shown in FIG. 15, a rectangular frame-shaped packing box side mounting portion 55 ′ is provided at the rear end of the packing box N ′ (immediately after the hopper H). The packing box side mounting portion 55 ′ is located at substantially the same height as the vehicle body side mounting portion 54, and the display device 51.
Is provided with a bolt hole (not shown) through which the bolts 51b protruding from the front surface are inserted, and the display device 51 is attached by fastening with a nut (not shown). That is, the display device 51 can be replaced with the vehicle body side mounting portion 54 or the luggage box side mounting portion 55 'so that the marker is displayed toward the rear of the vehicle body during the work.

As shown in FIGS. 13, 14 and 16, a cable reel 71 is installed at the front portion of the vehicle body 10 (the lower portion of the vehicle body side mounting portion 54). A base-side cable 72 is wound around the cable reel 71 so as to be able to be unwound, and a coupler 73 is attached to the tip of the unwound base-side cable 72. The other end of the replacement cable 62 is connected to the tip of the base side cable 72 via the couplers 73 and 64.

Therefore, in the above-described embodiment, as shown in FIG. 13, the snow plow 4 is used to remove snow or the short cargo box is not mounted with the cargo box N having the tall tank T on the vehicle body. When carrying out work with the work equipment in the packing box with the mounted, the display device 51 is attached to the vehicle body side attachment portion 54 at the front portion of the vehicle body 10 with the respective bolts 51b and nuts. Then, with the tip of the base side cable 72 slightly unwound from the cable reel 71 to the winding position, the other end of the replacement cable 62 is connected to the tip of the base side cable 72 via the couplers 73 and 64. Upon connection, a wire operation device displays a sign according to the work status, for example, a sign according to the work status of snow removal by the snow plow 4. As a result, the sign displayed on the display plate of the display device 51 is displayed not only when the luggage box is not loaded but also when the short luggage box is loaded.
0 It is possible to secure the visibility of the sign without being blocked from behind.

On the other hand, as shown in FIG. 14 and FIG.
When carrying out the wet salt spraying work by the wet salt sprayer P with the packing box N ′ equipped with the tall hopper H mounted on the vehicle body 10, the tip of the base side cable 72 and the replacement cable 6
After the connection with the other end of 2 via the couplers 73 and 64 is released, the nuts are loosened for the bolts 51b and the vehicle body 10
Remove the display device 51 from the vehicle body side mounting portion 54 at the front,
The detached display device 51 is hung by a crane and transferred to the rear end of the luggage box N, and the bolts 51 are attached to the luggage box side mounting portion 55 '.
The display device 51 is attached with b and the nut. Then, as shown in FIG. 16, the extension cable 72 is extended from the cable reel 71 to the rear end of the luggage box N ′ (rear end of the vehicle body 10) so that the front end of the base side cable 61 is in the unwinding position. By connecting the other end of the replacement cable 62 to the tip of the vehicle through the couplers 73 and 64, the display device 51 allows the display device 51 to move from the vehicle body side attachment portion 54 at the front portion of the vehicle body 10 to the luggage box side attachment portion 55 at the rear end of the luggage box N '. ′ ”, And the wire operation device displays a sign according to the work status, that is, a sign according to the work status of spraying the wet salt spray in the hopper H by the wet salt spraying device P. As a result, the sign is not obstructed from the rear of the vehicle body, the sign is very easy to see without being affected by the shape of the packing box N ′ equipped with the tall hopper H, and the visibility of the sign is always secured. Obtainable.

Moreover, since the required amount of the base cable 72 is unwound to the desired position by the cable reel 71, the long base cable 72 can be easily assembled, and the base cable 72 can be bulky. It can be stored compactly.

[0046]

As described above, according to the marker device for a work box detachable work vehicle of the invention according to claim 1, the vehicle body side mounting portion at the front portion of the vehicle body or the luggage box side mounting portion at the rear end portion of the luggage box is mounted. By removably attaching the signage device main body to the part, the visibility of the sign can be ensured regardless of whether the packing box is mounted or not.

Further, according to the sign device of the work box detachable work vehicle of the invention according to claim 2, when the sign device main body is attached to the vehicle body side attachment portion of the front part of the vehicle body, the replacement cable from the sign device main body is attached. By connecting the other end to the base side cable and connecting the other end of the replacement cable via the extension cable to the base side cable when the labeling device body is attached to the load box side attachment part at the rear end of the load box, It is possible to easily and quickly carry out the cable installation work for the marking device main body which has been replaced with the vehicle body side attachment portion at the vehicle body front portion or the luggage box side attachment portion at the rear end of the luggage box.

Further, according to the marking device of the work box detachable work vehicle of the invention according to claim 3, when the marking device main body is attached to the vehicle body side attachment portion of the front portion of the vehicle body, the base side cable is set to the winding position. While connecting the other end of the replacement cable in the rolled-up state, replace the replacement cable in the condition that the base side cable is unwound to the unwinding position when the marking device body is attached to the loading box side attachment part at the rear end of the loading box. By connecting the other end of the cable, the long base-side cable can be easily assembled, and the base-side cable can be housed compactly without being bulky.

[Brief description of drawings]

FIG. 1 is a side view of a truck showing a state in which a display device of a marking device according to a first embodiment of the present invention is attached to a vehicle body side attachment portion of a vehicle body front portion.

FIG. 2 is a plan view of the truck showing a state in which the display device is similarly attached to a vehicle body side attachment portion of a vehicle body front portion.

FIG. 3 is a rear view of the truck showing a state in which the display device is similarly attached to a vehicle body side attachment portion of a vehicle body front portion.

FIG. 4 is a side view of a luggage box that also includes a spraying device and a tank.

FIG. 5 is a side view of the truck and the luggage box showing a state in which the display device is similarly attached to the luggage box side attachment portion at the rear end of the luggage box.

FIG. 6 is a plan view of the truck and the luggage box showing a state in which the display device is also attached to the luggage box side attachment portion at the rear end of the luggage box.

FIG. 7 is a rear view of the truck and the luggage box showing a state in which the display device is also attached to the luggage box side attachment portion at the rear end of the luggage box.

FIG. 8 is a front view of the same display device.

FIG. 9 is a side view of the same display device.

FIG. 10 is a side view of the truck schematically showing the cable routing in the state where the display device is also attached to the luggage box side attachment portion at the rear end of the luggage box.

FIG. 11 is a plan view of a truck schematically showing the cable routing in the state where the display device is also attached to the luggage box side attachment portion at the rear end of the luggage box.

FIG. 12 is a side view of a luggage box equipped with a wet salt spraying device and a hopper mounted on a truck according to a second embodiment of the present invention.

FIG. 13 is a side view of the truck showing a state in which the display device of the marking device is also attached to the vehicle body side attachment portion of the vehicle body front portion.

FIG. 14 is a side view of the truck and the luggage box showing a state in which the display device is also attached to the luggage box side attachment portion at the rear end of the luggage box.

FIG. 15 is a rear view of the truck and the luggage box showing a state in which the display device is also attached to the luggage box side attachment portion at the rear end of the luggage box.

FIG. 16 is a side view of the truck schematically showing the cable routing in the state where the display device is also attached to the luggage box side attachment portion at the rear end of the luggage box.

[Explanation of symbols]

1 truck (packaging box removable work vehicle) 10 car body 5 Marker 51 Display device (marker device body) 54 Body side mounting part 55 Packing box side mounting part 6 cables 61 Base side cable 62 replacement cable 63 extension cable 71 cable reel 72 Base cable N, N 'packing box Ca support leg

Continued front page    F term (reference) 2D064 AA15 AA21 AA27 BA03 DB14                       EA01 EB01                 3D024 BA03 BA13 BA15                 3K039 LA03 LB05 LF07

Claims (3)

[Claims] 1. A load box attachment / detachment in which a load box detachably mounted on a vehicle body is supported by support legs in a state of being separated from the vehicle body, and the vehicle body is moved to detach the load box substantially in a horizontal direction from the vehicle body. In a type work vehicle, a sign device for displaying a sign toward the rear of a vehicle body during work, wherein a vehicle body side attachment portion for detachably attaching a sign device body is provided at a front portion of the vehicle body. At the rear end of the luggage box, there is provided a luggage box side mounting portion for removably attaching the marking device main body, and the marking device main body is arranged so that the marker is displayed toward the rear of the vehicle body during work. A marking device for a work box removable work vehicle, which is removably attached to a vehicle body side mounting portion or a luggage box side mounting portion. 2. The sign device for a work box detachable work vehicle according to claim 1, wherein a cable for displaying a sign is provided on the sign device main body, and the cable has one end connected to the sign device main body. The replacement cable, the base side cable to which the other end of the replacement cable is connected when the labeling device main body is attached to the vehicle body side mounting portion at the front of the vehicle body, and the luggage box side mounting portion at the rear end of the luggage box are marked. When the device body is attached, one end is connected to the base side cable and the other end is connected to the other end of the replacement cable, and the rear end of the vehicle body is attached so as to correspond to the load box side attachment part of the rear end of the load box. A marking device for a work box detachable work vehicle, which is provided with an extension cable extending up to. 3. The sign device for a work box detachable work vehicle according to claim 1, wherein a cable for displaying a sign is provided on the sign device main body, and the cable has one end connected to the sign device main body. Replacement cable, and a cable reel provided at the vehicle body front portion corresponding to the vehicle body side mounting portion of the vehicle body front portion, and the base side cable to which the other end of the replacement cable is connected is unwound and wound up. , The other end of the replacement cable is connected while the base side cable is wound to the winding position when the marking device main body is attached to the vehicle body side attachment part of the front part of the body, The loading box detachable work vehicle, wherein the other end of the replacement cable is connected in a state of being unwound to the unwinding position when the labeling device main body is attached to the luggage box side attachment portion. Signage device.