JPH11170873A - Fitting structure for hydraulic device for opening/ closing wing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the mounting process by attaching a hydraulic device to drive a hydraulic cylinder on a forward wall part of a cargo room. SOLUTION: In a front gate 5, a right longitudinal member 5b and a left longitudinal member 5c are arranged within a portal frame member 5a, and the longitudinal members 5b, 5c are connected to each other by an upper transverse member 5d and a lower transverse member 5e, and a hydraulic device storage part, more specifically, a recess 5f, is formed in a center part. A hydraulic device 11 to be stored in the recess 5f is fixed by bolts 5h to be inserted from a lower part of the lower transverse member 5e. In addition, a door 5j to cover a front plate 5i to form an external wall surface of a forward wall part of a cargo room, and the recess 5f is provided. The frame member 5a, the right longitudinal member 5b, the left longitudinal member 5c, and a beam member 7 are formed of square pipe, and the oil piping to connect the hydraulic device 11 to a hydraulic cylinder 9, and the electric wiring to connect the hydraulic device 11 to a switchboard are passed in these square pipes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure of a hydraulic device for opening and closing a wing.

[0002]

2. Description of the Related Art Hitherto, a truck having a wing in the upper part of a luggage compartment is known. Particularly, a large truck is provided with a driving mechanism for opening and closing the wing to improve operability. The drive mechanism is composed of a hydraulic cylinder and a hydraulic device (a hydraulic pump, a drive motor, an electromagnetic valve, etc.), and it is common that the hydraulic device is unitized and mounted below the floor on the side of the vehicle. The hydraulic cylinder is disposed near the base of the wing, that is, above the cargo compartment.

[0003]

In the above-mentioned truck, when a luggage compartment is mounted on a chassis with a cab,
Piping work is required to supply hydraulic oil from the hydraulic device under the floor to the hydraulic cylinder above the cargo room. Therefore, the entire drive mechanism is mounted and tested during or after the luggage room mounting process, which hinders shortening of the process and cost reduction.

[0004] It is an object of the present invention to arrange a hydraulic device for opening and closing wings on a truck having wings in the upper part of a cargo room to simplify the mounting process.

[0005]

For this purpose, the following mounting structure of a hydraulic device for opening and closing wings has been created.
That is, according to the present invention, a wing provided on an upper part of a cargo room of a truck is driven to be opened and closed by a hydraulic cylinder, and a hydraulic device for driving the hydraulic cylinder is attached to a front wall of the cargo room. It is characterized by.

In the truck having the above-mentioned hydraulic device, the assembly of the wing and the wing opening / closing drive mechanism can be completed by the luggage compartment alone without putting the luggage compartment on the chassis and assembling the luggage compartment. I can put it. Therefore, the process of mounting the luggage compartment on the cab-mounted chassis can be simplified as compared with the conventional case, and the piping can be shortened. If a recess is provided in the front wall of the luggage compartment and the hydraulic device is housed in the recess, the front wall space can be effectively used, and the luggage compartment can be prevented from becoming narrow. convenient.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a cab-over type truck provided with a wing at an upper part of a luggage compartment, and shows a state in which the cab is moved forward. FIG. 2 is a perspective view showing the front wall of the luggage compartment, and FIG. 3 is a perspective view showing the rear wall. FIG.
As shown in FIG. 1, a cab 3 and a cargo room 4 are mounted on a chassis 2 of a truck 1. Carrier 4 attached to chassis 2
a, a front torii 5 which is a support frame of the front wall of the luggage compartment, and a rear torii 6 which supports a rear door (not shown) stand upright.
A beam member 7 extending in the vehicle front-rear direction connects the centers of the upper ends of the two torii gates. A tilt 4b is rotatably attached to the loading platform 4a by a hinge.

Left and right wings 8 (8a, 8b) are rotatably attached to the beam member 7 via hinges 7a, and a hydraulic cylinder 9 (between the front torii 5 and the rear torii 6 and the wing 8). 9a to 9d) are interposed, and when the rod of the hydraulic cylinder 9 is extended, the wing 8 is rotated and lifted, while when the rod is contracted, the wing 8 is
Is rotated to close the cargo room 4. As shown in FIG. 3, the rear torii 6 is provided with a supporting portion 6a for rotatably supporting the cylinder body of the hydraulic cylinder 9, and a similar supporting portion is provided on the front torii 5 as well.
These hydraulic cylinders 9 are supplied with hydraulic oil from a hydraulic device 11 (described later) housed in the front torii 5.

Next, the mounting structure of the hydraulic device 11 will be described. As shown in FIGS. 1 and 2, the front torii gate 5 includes a right vertical member 5b and a left vertical member 5c inside a gate-shaped frame member 5a.
The upper and lower members 5b and 5c are connected by an upper cross member 5d and a lower cross member 5e, and a hydraulic device housing portion, specifically, a recess 5f is formed at the center. The hydraulic device 11 housed in the recess 5f is fixed by a mounting bolt 5h inserted from below the lower cross member 5e. Reference numeral 5i in FIG. 1 denotes a front plate that forms the outer wall surface of the luggage compartment front wall.
j is a door for closing the recess 5f. The frame member 5a, the right vertical member 5b, the left vertical member 5c, and the beam member 7 are formed of square pipes, and an oil pipe 10 connecting the hydraulic device 11 and the hydraulic cylinder 9, and an electric pipe connecting the hydraulic device 11 and the switchboard. Wiring (not shown) passes through these square pipes. Therefore, the piping and wiring are neat, and in particular, since there is no underfloor piping, there is no danger of the piping coming into contact with obstacles on the road surface, and it is unlikely to break down.

The rear torii gate 6 is formed in a gate shape as shown in FIG. 3, and is formed to support a rear door (kannon door) (not shown). An oil pipe 10 led to the rear of the vehicle is connected to hydraulic cylinders 9c and 9d.

Next, the hydraulic device 11 will be described. FIG. 4 is a front view of the hydraulic device 11, and FIG. 5 is a left side view. As shown in both figures, the hydraulic device 11 has a pump 13 and a drive motor 14 connected to an oil tank 12, and a pilot check valve 16a,
12b and the direction control valves 17a and 17b are mounted and integrated, and are arranged like a hydraulic circuit shown in FIG. Reference numeral 18a in FIG. 4 denotes an adjusting screw of the relief valve 18, 13a denotes a screw hole into which the above-mentioned mounting bolt 5h is screwed, and 19a and 19b in FIG. 6 denote flow adjusting valves arranged at appropriate positions. Although not shown, the hydraulic device 11 is connected to a vehicle-mounted battery via an appropriate electric circuit, and has an operation panel provided with operation switches.

In the present embodiment, the hydraulic device 11 for opening and closing the wing is accommodated in the front wall of the luggage compartment 4 to effectively utilize the space of the front wall. Out of each hydraulic cylinder 9a ~
It is also used as a duct for the oil pipe 10 connected to 9d. That is, since there is no piping that passes under the floor of the loading platform 4a or piping that passes through the floor plate, the loading chamber 4 is independently assembled and the hydraulic device 11 is operated to complete the operation (opening / closing operation) test of the wings 8a and 8b. be able to. Therefore, the process of mounting the luggage compartment (including the luggage compartment) is simplified, and productivity can be improved by expected production of the luggage compartment. In addition, since the hydraulic device is not disposed under the floor on the side of the vehicle as in the related art, it is not necessary for the driver to go down on the road and perform an inspection or the like on the side of the vehicle when the hydraulic device fails, which is preferable for safety.

[0013]

As described above, the mounting structure of the hydraulic device for opening / closing a wing according to the present invention requires that a drive mechanism for opening / closing the wing be subjected to an assembly test and an operation test before the luggage compartment is assembled to the chassis. Therefore, there is an effect that the process of mounting the luggage compartment on the chassis with a cab can be simplified.

[Brief description of the drawings]

FIG. 1 is a perspective view of a cab-over type truck according to an embodiment, showing a state where a wing is lifted and a cab is moved forward.

FIG. 2 is a perspective view showing a luggage compartment front wall portion.

FIG. 3 is a perspective view showing a rear wall portion of the luggage compartment.

FIG. 4 is a front view of the hydraulic device.

FIG. 5 is a left side view of the hydraulic device.

FIG. 6 is a hydraulic circuit diagram.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Truck 2 Chassis 4 Luggage compartment 4a Luggage part 5 Front torii 6 Rear torii 8 (8a, 8b) Wing 9 (9a-9d) Hydraulic cylinder 10 Oil piping 11 Hydraulic device

Claims (1)

[Claims] 1. A truck in which a wing provided on an upper part of a cargo room of a truck is driven to open and close by a hydraulic cylinder, wherein a hydraulic device for driving the hydraulic cylinder is attached to a front wall of the cargo room. The mounting structure of the hydraulic device for opening and closing the wing.