JPH0637016Y2 - Work vehicle canopy - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a canopy of a work vehicle, especially an excavator.

[0002]

2. Description of the Related Art FIG. 4 shows a conventional excavator structure and a canopy mounting structure.

In the figure, (1) is a lower traveling body,
An upper revolving structure (2) is mounted on the lower traveling structure (1). An engine (6) covered with an engine cover (4) is mounted on the rear end of the upper swing body (2), and a seat (3) is arranged on the front side of the engine (6). (7) is an excavating work machine attached to the front end of the upper swing body (2). The engine cover (4) has an opening / closing lid (8) on its rear side so as to open in the arrow A direction. The canopy (9) includes a canopy roof (10) arranged above the seat (3) and a canopy frame (11) that supports the canopy roof (10),
The lower end of the canopy frame (11) is fixed onto the engine cover (4) at the rear of the seat (3).

[0004]

In the above-mentioned conventional excavator, the seat (3) is arranged on the front side of the engine (6), but this makes the entire length of the machine longer and relatively Since the engine portion projects rearward, the projecting portion collides with an obstacle when the upper revolving superstructure swings, which has a drawback that the turning radius becomes small. A large turning radius of a small excavator of this type is a large negative factor, and thus a large limitation is imposed on the range of use.
Therefore, it is conceivable to arrange the engine below the seat as shown by the two-dot chain line in the figure, which is the first object of the present invention. In that case, in the conventional structure in which the lower end of the canopy frame (11) is attached to the front end portion of the engine cover (4), the pedestal (12) of the canopy frame (11) is
Since it is located on the side of the seat (3) and on both sides of the operator, there is the inconvenience that this pedestal (12) interferes with the operation of the operator. Of course, if the canopy frame (11) is attached to the rear end portion of the engine cover (4), such an obstacle will be eliminated. However, as described above, the open / close lid (8) is provided at the rear portion of the engine cover (4). ) Is attached so as to be rotatable, and if it is attached avoiding this, there is no choice but to project the attached portion rearward, and there is a disadvantage that the total length becomes longer accordingly.

The present invention has been made for the purpose of eliminating the above-mentioned conventional drawbacks.

[0006]

In order to achieve such an object, according to the present invention, there is provided a work vehicle comprising a lower traveling body and an upper revolving structure, and the seat upper part is covered with a canopy. An excavator is attached to the front part, a seat and an engine arranged directly below the seat are also provided at the rear part, and a control device is arranged between the seat and the excavator, and the front and rear direction of the lower end of the canopy frame is set. Attaching the mounting base to the upper surface of the cover that covers the engine on both sides of the seat, extending to the vicinity of the operating range within the range in which the rear end of the mounting base does not interfere with the operating range of the cover opening / closing lid at the rear of the cover, The rear end of the mounting base is bent upward at the rear of the operation space of the operator operating the operation device to form a pillar, and the side of the operation space is opened, and the leg is further extended. Characterized in that supporting the canopy roof at the upper end.

[0007]

[Function] Since the engine (6) is arranged directly below the seat (26), the working vehicle having a short total length and a small turning radius can be obtained. Also, canopy frame (30)
The mounting base (29) is mounted on the upper surface of the engine cover (24) on both sides of the seat (26), and the mounting base (29) does not project rearward. Moreover, the pedestal (35) is formed by bending the rear end of the mounting base (29) upward, the side of the control section (37) is open, and the operator located at the seat (26). It does not hinder the operation of.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described below with reference to the illustrated embodiment. In FIG. 3, an engine (in the rear part of an upper revolving structure (22) mounted on a lower traveling structure (21) is 23) is installed, and this engine (23) is covered by the engine cover (24) as in the conventional case. The engine cover (24) is divided into a front body and a rear body (20) fixed to the upper revolving structure (22) and a rear opening / closing lid (25). The upper side is opened and closed by rotating the upper side thereof to the rear as shown by arrow A in the figure.

A seat (26) is mounted on the upper surface of the engine cover (24) immediately above the engine (23). (27)
In front of this seat (26), the upper swing structure (22)
A lever mount mounted on the upper side (28) also shows an excavator mounted on the front end of the upper swing body (22). Between the excavator (28) and the engine (23), a control section (3) including various levers protruding from the lever mount (27) and the front of the engine cover (24).
7) is provided.

FIG. 1 (29) shows a pipe mounting base of the canopy frame (30). This mounting base (29) is provided on both sides of the seat (26) as shown in FIG. Body part (20) of cover (24)
As far as possible, the rear end of the attachment base (29) is extended to the vicinity of the operating range of the opening / closing lid (25) within a range where the rear end of the attachment base (29) does not interfere with the operating range of the opening / closing lid (25). It is arranged long in the front-rear direction over the length range. In the figure, (31) is a mounting base fixed to the upper surface of the engine cover (24), and the mounting base (2)
9) is placed on this installation base (31),
A holding plate (3) of approximately Ω shape that covers the mounting base (29).
2) has bolts (33) (3
3) It is fixed to the mounting table (31) by means of which it supports the mounting base (29). The pressing plate (32), as shown in FIG.
It is provided over substantially the entire length of the mounting base (29), and is fixed by two bolts (33) (33) in the front-back direction. (34) is one holding plate (3
It is a roughly inverted U-shaped handrail fixed to the upper surface of 2).

The rear end of the mounting base (29) fixed as described above is bent upward through the bent portion (34) to form a pedestal (35), and the upper end of this pedestal (35). The canopy roof (36) is supported by. That is, the pedestal (35) rises upward in the rear of the control space of the operator who operates the control section (37) while being located in the seat (26), and the side of the control space is open. Therefore, the structure is such that the operator's arm or elbow does not hit the canopy frame (30) part and the operation is not hindered.

[0012]

As described above, according to the present invention, since the engine is arranged directly below the seat, the engine does not project much rearward from the seat, and the entire length of the body is shortened. It is possible to obtain a work vehicle with a small turning radius that is most needed for a small type of excavation vehicle. Moreover, since the mounting base of the canopy frame is mounted on the upper surface of the engine cover on the side of the seat,
As compared with the case where the mounting base cover is provided at the rear, the entire body can be shortened and the turning radius can be made smaller. In addition, the mounting base extends its rear end to the vicinity of the operation range of the cover opening / closing lid within a range that does not interfere with the opening / closing operation range of the cover opening / closing lid and extends back and forth as long as possible over the range. Since it is oriented in the direction, the mounting strength is also high. Particularly, in the present invention, the engine is arranged just below the seat to shorten the overall length, and the mounting base of the canopy frame is mounted on the main body of the engine cover, but the rear end of the mounting base is reduced. The effect is that the operator's arm or elbow does not hit the canopy frame during steering because the canopy roof is supported by bending it upward at the rear of the steering section and the side of the steering section is open. There is.

[Brief description of drawings]

FIG. 1 is a side view of a canopy showing an embodiment of the present invention.

FIG. 2 is likewise a front view of the canopy.

FIG. 3 is an overall side view of an excavator showing an embodiment of the present invention.

FIG. 4 is an overall side view of an excavator showing a conventional structure.

[Explanation of symbols]

 (21) Undercarriage (22) Upper revolving structure (23) Engine (24) Engine cover (25) Open / close lid (26) Seat (28) Excavator (29) Mounting base (30) Canopy frame (35) Leg Pillar (36) Canopy roof (37) Control section

Claims (1)

[Scope of utility model registration request] 1. A work vehicle comprising a lower traveling structure and an upper revolving structure, and a canopy covering the upper part of the seat with a canopy. An excavator is attached to the front part of the upper revolving structure, and a seat and its seat are provided at the rear part. With the engine placed directly below,
A control device is arranged between the seat and the excavator, and the front and rear mounting bases of the lower end of the canopy frame are attached to the upper surfaces of the covers covering the engine on both sides of the seat, and the rear end of the mounting base is a cover of the rear cover. The pedestal is mounted by extending it to the vicinity of the operating range when it does not interfere with the operating range at the time of opening and closing the opening / closing lid, and bending the rear end of the mounting base part upward in the rear part from the operation space of the operator who operates the operation device. As a canopy of a work vehicle, the side of the control space is open and the canopy roof is supported by the upper end of the pedestal.