JP2555515Y2 - Driver's cab for working vehicles - Google Patents

Description

[Detailed description of the invention]

[0001]

[Industrial applications] The present invention relates to construction equipment and road construction
The present invention relates to a construction work machine such as a repair machine or a cab of a work vehicle.

[0002]

2. Description of the Related Art In such a construction work vehicle, it is common practice to surround a driver's seat with a window-paneled steel cab to protect a driver from rain and wind. However, in order to make it easier to see the work situation and because of structural restrictions, the position of the driver's seat is often placed higher than the ground compared with general road vehicles.

[0003] On the other hand, in order to transport these work vehicles and the like to the site where they actually work, they must be transported on a truck or a trailer. Whenever the height exceeds the limits of the Vehicle Law, the driver's cab must be removed.

[0004] Conventionally, to facilitate removal of such a cab, there is one in which the upper half can be folded as disclosed in Japanese Utility Model Laid-Open No. 2-96287. The cab is front, back,
It consists of five surfaces: left, right, and roof. The four members on four sides are divided horizontally at about 1/2 of the height direction, and the divided bodies are connected by hinges or other fittings. The lower half of each side is fixed and the upper half is folded outward or inward. In addition, the roof can be detached as a single structure or can be folded by being connected to any of the four-way members via hinges.

[0005]

However, in such a conventional cab, since it is necessary to move each member to fold or assemble, it takes time and effort, and the order and the method of assembling joints are required. There is a point in such as, and requires some strength and skill.

An object of the present invention is to solve the inconvenience of the prior art and to provide a driver's cab of a working vehicle or the like which can be easily and less labor-intensive at the time of forwarding and can quickly reduce the height. .

[0007]

In order to achieve the above object, according to the present invention, the front, rear, left, and right sides of the driver's cab, including the glass window, are formed to have a height of about 1/2 of the height. At the position, it is divided horizontally into two parts. In this way, the diameter of the upper divided box including the roof with the same height and the diameter of the lower divided box are made different, and the upper divided box is moved up and down with respect to the lower divided box. The upper split box and the lower split box are interposed with a cylinder for raising and lowering the upper split box. The gist is that the upper and lower parts are divided into upper and lower parts at a height corresponding to the four peripheral surface members, and each of them is independently attached to the upper and lower box bodies with hinges so that they can be opened and closed.

[0008]

According to the present invention, in order to reduce the cab at the time of forwarding, the upper split box is moved downward with respect to the lower split box so that the upper split box is raised outside the lower split box. And the overall height is low. When the upper split box is moved upward and fixed to the lower split box at the time of use, the upper split box is located above the lower split box, and a driver's cab having a normal height can be formed. .

In addition, the lifting and lowering of the upper divided box body can be automatically performed by the lifting cylinder, so that large labor and skill are not required.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a partially longitudinal side view showing one embodiment of a driver's cab of a work vehicle or the like according to the present invention, and FIG. 2 is a perspective view of a main part of the same. In FIG. 3, reference numeral 1 denotes a driver's cab, which is provided above the work vehicle 2 and the like as shown in FIG. 3, and includes a front surface 3, a rear surface 4, a left side surface 5, and a right side surface (including a glass window). (Not shown) were defined as vertical surfaces.

A four-circumferential surface of the operator's cab 1 is horizontally divided into two parts at a position about one-half in the height direction, and an upper divided box 8 including a roof plate 7 and a lower divided box 9 are assembled. To match.
Among them, the lower divided box 9 is fixed to the work vehicle 2, and the upper divided box 8 is made larger in diameter than the lower divided box 9, and the lower end thereof is vertically oriented with respect to the upper end of the lower divided box 9. It is fitted so that it can be freely moved and is deeply nested. Further, horizontal flanges 16 and 17 were formed on the mutual fitting ends of the upper divided box body 8 and the lower divided box body 9 so as to overlap each other, and a packing 18 to be sandwiched at the time of overlapping was attached to one of the flanges.

The horizontal flanges 16 and 17 serve to prevent the upper split box 8 from coming out of the lower split box 9 in a "nested" state. 19 is provided on the horizontal flange 16 of the upper divided box 8 with a pin 20 of an enlarged head that protrudes through the through hole 19, and further protrudes from the through hole 19 on the horizontal flange 17 in the vicinity of the through hole 19. A lock piece 21 having a notch 21a that fits directly below the enlarged head of the pin 20 is provided rotatably. These through holes 19,
The pin 20 and the lock piece 21 constitute a fastener for locking and fixing the horizontal flanges 16 and 17 to each other in a superposed state by a latching effect accompanied by a wedge action.

On the lower side of the front surface 3, the lower side usually has a partition wall and an instrument panel separating the driver's seat 10 and the engine room 11 of the vehicle.
There is no structure at all. The upper part of the front 3 is the front glass
Although it is a large window glass called 12, it cannot be moved down because it is obstructed by a partition wall or an instrument panel. A rail 13 is provided, which can be moved below the roof plate 7, that is, under the ceiling by a sliding method using the guide rail 13, and lowered or raised while being held by the roof plate 7.

Watertight members 14 and 15 made of rubber plates or the like are respectively provided below the portion where the lower edge of the front glass 12 is in contact with and below the roof plate 7 at a position directly above the front glass 12 so as to have a length corresponding to the entire width of the front glass 12. When the upper divided box body 8 is lowered, the upper and lower watertight members 14 and 15 are brought into contact with each other to form a watertight structure.

The entrance doors 22 are provided at a total of two places on the left and right or one place only on one side. The door 22 is also divided into upper and lower parts at the same height position as the four circumferential surface members, and each is independently hinged to the upper and lower boxes so that it can be opened and closed. Then, in the closed state, the outer surface of the lower half of the door 22 is made the same surface as the outer surface of the lower divided box 9, the inner surface of the upper half is made the same surface as the inner surface of the upper divided box 8. Upper split box 8
The structure can be freely moved up and down.

Between the upper divided box 8 and the lower divided box 9,
A cylinder for raising and lowering the upper divided box body 8 is interposed, so that the upper divided box body 8 can be easily moved up and down via the cylinder, instead of being directly moved up and down by hand. In the illustrated embodiment, the cylinder is a hydraulic cylinder, FIG.
As shown in FIG. 2, a plurality of hydraulic cylinders 23 are provided in the operator's cab 1 to vertically connect the vicinity of the floor surface and the vicinity of the ceiling.
A hydraulic power source device 24 for sending pressurized oil inside is provided outside the cab 1 at an appropriate position on the vehicle. This hydraulic power source device includes an oil tank 25, a manual or electric hydraulic pump 26, and a switching valve 27. An air cylinder or the like can be used for the cylinder in addition to the hydraulic pressure.

Although not shown, the vicinity of the ceiling of the upper divided box 8 and the vicinity of the upper end of the lower divided box 9 are connected at an appropriate position on a plane by a bundle of electric wires. When the upper divided box 8 is lowered, the bundle of electric wires is formed into a coil shape or wound on a reel. So that you don't get stuck on something. The bundle of electric wires is for transmitting electric power and signals to an interior light, a wiper, a fan, a speaker, a communication device, and the like attached to the upper divided box 8.

Next, usage and operation will be described. After the work vehicle 2 and the like are mounted on the forwarding vehicle, the engine is stopped, the main switch is turned off, and the front glass 12 is pushed up along the guide rails 13 to above the ceiling.

The lock piece 21 is removed from the pin 20, and the driver goes out of the cab 1 and closes the door 22. After that, the hydraulic power unit 24
When the hydraulic cylinder 23 is contracted by the operation, the upper split box 8 moves downward with respect to the lower split box 9, and the upper split box 8 overlaps the outside of the lower split box 9, and the operator's cab The height of 1 is low as shown in FIG.

In use, the reverse operation is performed on the forwarding vehicle to move the upper split box 8 upward with respect to the lower split box 9 so that the horizontal flanges 16 and 17 overlap each other. Since the enlarged head of the pin 20 of the horizontal flange 16 protrudes from the through hole 19 of the horizontal flange 17, if the lock piece 21 is fitted to this pin 20, the horizontal flange is provided with a locking effect with a wedge action.
16, 17 are locked and fixed in a superposed state, and the packing 18 is interposed therebetween, so that watertightness can be ensured. In this manner, the upper divided box 8 is located above the lower divided box 9, and the cab 1 having a normal height can be formed as shown in FIG.

The front glass is opened only while the upper divided box 8 is being raised or lowered.
After ascending and returning the front glass 12 to its normal position, or after descending, the watertight members 14 and 15 keep the watertight completely, so that rain and wind can flood the cab 1 or be stolen. Don't worry.

Further, if there is a possibility that the chair 28 of the driver's seat 10 or the steering wheel 29 may obstruct the lower divided box 8, the backrest of the chair 28 can be tilted forward. The steering wheel (steering wheel) 29 may be used as a tilt handle.

[0023]

[Effects of the Invention] As described above, the driver's cab of the working vehicle of the present invention can easily and quickly be lowered without moving and moving the members one by one without folding or assembling. Or it can be of normal height.

[Brief description of the drawings]

FIG. 1 is a partial longitudinal side view showing one embodiment of a driver's cab of a work vehicle or the like of the present invention.

FIG. 2 is a perspective view of a main part.

FIG. 3 is an overall side view in use.

FIG. 4 is an overall side view at the time of reduction.

FIG. 5 is a cross-sectional plan view.

FIG. 6 is a perspective view.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Driver cab 2 ... Work vehicle 3 ... Front 4 ... Rear surface 5 ... Left side 7 ... Roof panel 8 ... Upper split box 9 ... Lower split box 10 ... Driver seat 11 ... Engine room 12 ... Front glass 13 ... Guide rail 14,15… watertight member 16,17… flange 18… packing 19… through hole 20… pin 21… lock piece 21a… notch 22… door 23… hydraulic cylinder 24… hydraulic power source device 25… oil tank 26… hydraulic pump 27… Switching valve 28 ... Chair 29 ... Steering wheel

Claims (1)

(57) [Scope of request for utility model registration] 1. The front, rear, left and right sides of the driver's cab, including the glass window, are horizontally divided into two at approximately 1/2 the height, and are thus comparable. The upper split box including the roof with the height of the upper split box and the lower split box have different diameters so that the upper split box can be moved up and down relative to the lower split box so that they are deeply nested with each other. Between the upper divided box and the lower divided box, a cylinder for raising and lowering the upper divided box is interposed, and the entrance door is also divided into upper and lower parts at a height corresponding to the four peripheral surface members. A driver's cab for a working vehicle or the like, wherein each of the driver's cabs can be independently opened and closed with hinges attached to the upper and lower boxes.