JP2001271384A - Sunshade device for construction machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To help an operator easily get onto and get off an operator's seat and improve working efficiency by making a working unit easy to see by broadening the field of view in a low vehicle height construction machine in which a sunshade device is set low. SOLUTION: A roof 7 covering the part above an operator's seat 3 is pivoted rotatably upward and downward to the upper end of a support 6 erected in the rear of the operator's seat 3 of a construction machine 2 and a stay 68 to fix the roof 7 in an optional rotated position and a stay fixing bolt are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a awning device for a construction machine suitable for a low-height construction machine.

[0002]

2. Description of the Related Art Low-height construction machines can be used in places where the height is limited, and can be easily moved up and down to a driver's seat by an operator. It has become. In the construction machine 82 provided with the awning device 81 as shown in FIG. 8, the height of the awning device 81 provided so as to cover the upper part of the driver's seat 83 is the vehicle height of the construction machine 82. Therefore, in the case where the height is limited, in order to lower the vehicle height, not only the main body of the construction machine 82 is made to be a low vehicle height type, but also the awning device 81 is set low according to the limited height H. Is required.

[0003] However, when the sunshade device 81 is set low, as shown in FIG.
When getting on and off, it is difficult to get on and off because the awning device 81 is in the way, and as shown in FIG. In the case, the raised working device 84
However, there is a problem that workability is deteriorated because it becomes difficult to see.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems in a sunshade device for construction machinery,
An object of the present invention is to provide a awning device for a construction machine that enables an operator to easily get in and out of a driver's seat even when the awning device is set low, and that allows the operator to easily view the working device and improve the workability by enlarging the field of view during work. With the goal.

[0005]

A sunshade device for a construction machine according to the present invention is provided at an upper end portion of a support standing upright behind a driver's seat.
The above-mentioned problem is solved by pivotally supporting a roof covering an upper part of a driver's seat so as to be vertically rotatable. When traveling in places where the height is restricted, the roof is used as a lower reference position.
Lower the vehicle height.

[0006] When the operator gets on and off the driver's seat or performs work using an ascending / descending working device, the operator can easily get on and off the driver's seat by turning the roof upward from the reference position. Thus, the field of view at the time of work can be enlarged, and the work device can be easily seen to improve workability. If a fixing mechanism for fixing the roof at an arbitrary rotation position is provided, the height of the roof can be held at an arbitrary position as needed.

[0007]

FIG. 1 is a side view of a working state of a construction machine provided with a awning device according to an embodiment of the present invention, and FIG. 2 is a side view of the construction machine with a roof of the awning device as a reference position. FIG. 3 is a side view of the rear half, FIG. 3 is a rear view of the awning device, FIG.
FIG. 5 is a side view of the connecting portion between the support and the roof of the awning device, FIG. 5 is a rear view of the connecting portion between the support and the roof of the awning device, and FIGS. 6 and 7 are explanatory views of the operation of the stay.

Here, the construction machine 2 is a low-height wheel loader in which a front wheel-side frame 22 provided with tires 21 and a rear wheel-side frame 24 provided with tires 23 are connected to be able to bend left and right at the center. A boom 41 and a bucket 42 are provided on the front wheel side frame 22 as the working device 4. The working device 4 may be provided with a fork device 43 or the like instead of the bucket 42.

The rear wheel side frame 24 is provided with a driver's seat 3 and a driving unit 25. Also, the rear wheel side frame 24
Is equipped with a awning device 1 that covers the driver's seat 3.
The awning device 1 uses a pin 62 to connect the rear end of the roof frame 71 of the roof 7 to the connecting bracket 61 at the upper end of the support column 6 erected on the left and right sides behind the driver's seat 3 of the rear wheel side frame 24. It is configured to pivot.

The pin 62 is secured by a snap ring 63. A frame stopper 72 protrudes downward from the rear end of the roof frame 71, and an adjustment bolt 64 whose front end contacts the frame stopper 72 is screwed to the connection bracket 61. Further, a handle 73 for turning operation is provided on the roof frame 71.
With this configuration, the roof 7 can be vertically rotated in a range from the horizontal reference position shown in FIG. 2 to a position arbitrarily set by the adjustment bolt 64.

The left and right columns 6 are connected to each other by a connecting member 65, and a gas spring 66 is mounted between the connecting member 65 and the roof frame 71, so that the operating force during vertical rotation is reduced. It is supposed to be. A stay 68 is provided between the stay bracket 67 of the support 6 and the roof frame 71. An inverted L-shaped elongated hole 69 is provided at the mounting portion of the stay 68 on the side of the stay bracket 67, and the height of the roof 7 can be adjusted to an arbitrary position by a stay fixing bolt 70 inserted into the elongated hole 69. Can be kept. Since the long hole 69 has an inverted L-shape, the roof 7 is prevented from suddenly turning when the stay fixing bolt 70 is loosened in the reference state.

The height of the awning device 1 is such that the height of the construction machine 2 is limited to the height H when the roof 7 is at the reference position shown in FIG.
It is set to be as follows. When the construction machine 2 travels in a place where the height is limited, the roof 7 is fixed at the reference position. When the operator 5 gets on and off the driver's seat 3 or performs work by moving the bucket 42 up and down,
The roof 7 is rotated upward from the reference position.

At this time, the operator loosens the adjustment bolt 64 and the stay fixing bolt 70, and pushes the roof 7 up with the handle 73. Since the stay 68 is movable in the range from the state of FIG. 6 to the lower end of the elongated hole 69 abutting on the stay fixing bolt 70 as shown in FIG. 7, the operator 5 adjusts the adjustment bolt 64 to rotate the stay. Is set, and when the roof 7 is raised to that position, the stay fixing bolt 70 is tightened, so that the height of the roof 7 can be held at an arbitrary position.

When the roof 7 is rotated upward as shown in FIG. 1 during the operation, the field of view of the operator 5 is expanded to a much higher level than when the roof 7 is at the reference position. Even when the device 43 or the like is raised, it can be visually recognized without any trouble, and the work can be performed extremely easily. When the operator 5 gets on and off the driver's seat 3, he can easily get on and off without having to worry about overhead.

[0015]

As described above, the awning device for construction equipment according to the present invention enables the operator to easily get on and off the driver's seat even when the awning device is set low, and to increase the visibility during work. Thus, the working device can be easily seen and workability can be improved. If a fixing mechanism for fixing the roof at an arbitrary rotation position is provided, the height of the roof can be held at an arbitrary position as needed.

[Brief description of the drawings]

FIG. 1 is a side view showing a working state of a construction machine provided with a awning device according to an embodiment of the present invention.

FIG. 2 is a side view of a rear half of the construction machine in a state where a roof of the awning is set as a reference position.

FIG. 3 is a rear view of the awning device.

FIG. 4 is a side view of a connecting portion between a support and a roof of the sunshade device.

FIG. 5 is a rear view of a connection portion between a support and a roof of the awning device.

FIG. 6 is an explanatory diagram of the operation of a stay.

FIG. 7 is a diagram illustrating the operation of a stay.

FIG. 8 is a side view of a construction machine provided with a conventional awning device.

FIG. 9 is an explanatory diagram of a state in which an operator gets on and off a construction machine provided with a conventional sunshade device.

[Explanation of symbols]

 1 Sunshade device 2 Construction machine 3 Driver's seat 4 Work device 5 Operator 6 Support post 7 Roof 22 Front wheel side frame 24 Rear wheel side frame 41 Boom 42 Bucket 61 Connection bracket 62 Pin 63 Snap ring 64 Adjustment bolt 67 Stay bracket 68 Stay 69 Slot 70 Stay fixing bolt 71 Roof frame 72 Frame stopper 73 Handle

Claims (2)

[Claims] 1. A sunshade device for a construction machine comprising a roof covering the upper side of a driver's seat pivotally supported on an upper end of a column standing behind the driver's seat so as to be vertically rotatable. 2. The awning device for a construction machine according to claim 1, further comprising a fixing mechanism for fixing the roof at an arbitrary rotation position.