JPH0791038B2 - Aerial work equipment with tractor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a technique in which a tractor is equipped with an aerial work machine used for caring for tall trees and harvesting fruits.

(B) Prior Art Conventionally, work machines for aerial work used for replacement and repair of electric poles and electric wires have been known. However, these conventional aerial work machines are fixed to a dedicated truck or the like, and it is not possible to remove only the aerial work machine part.

(C) Problems to be Solved by the Invention The object of the present invention is to be constructed so that it can be mounted on a general-purpose tractor of the conventional aerial work machine, and if the aerial work machine is removed from the tractor, the tractor itself is It is configured so that it can be used for various work of the conventional method. For that purpose, it is necessary that the mounting method of the aerial work machine on the tractor is simple. The present invention provides front set brackets 9 and 9 on the front left and right sides of the aerial work machine, and the aerial work machine. Rear set brackets 41, 41 are provided on the left and right rear sides of the front set bracket, and the front set brackets 9, 9 and the rear set brackets 41, 41 are provided.
The tractor T and the aerial work implement are connected to each other through four points. Further, the structure of the connecting portion allows the powerless operator to easily attach / detach the tractor T and the aerial work implement.

(D) Means for Solving the Problem The object of the present invention is as described above, and the configuration for achieving the object will be described below.

The front part of the aerial work machine mounted on the tractor T is fixed to the clutch housing 21 of the tractor T, and the rear part of the aerial work machine side is attached to the rear axle housing 44 of the tractor T.
It is fixed to.

(E) Embodiments The purpose and structure of the present invention are as described above. Next, the structure of the present invention will be described based on the structure of the embodiment shown in the accompanying drawings.

Fig. 1 is an overall side view of an aerial work machine mounted on the tractor T, Fig. 2 is an enlarged side view of the aerial work machine device taken out, and Fig. 3 is a front part set on the clutch housing 21 part. FIG. 4 is a perspective view of the tractor T before mounting the bracket 9, FIG. 4 is a perspective view from the rear side of the same in which the front set bracket 9 is mounted on the sub-bracket 3, and FIG.
Rear perspective view showing the rear end portions of the left and right hook brackets 5 protruding rearward from the rear axle housing 44 of FIG.
FIG. 6 is a rear perspective view showing a state before the rear set bracket 41 is projected from the aerial work machine side to the hook bracket 5 and locked to the hook bracket 5, and FIG. 7 is a side view of the hook bracket 5. FIG. 8 is a side view showing a state in which the hook bracket 5 and the rear set bracket 41 are combined, and FIG. 9 is a plan view of the hook bracket 5.

The overall structure of the present invention will be described with reference to FIGS. 1 and 2.

The tractor T is supported by the front wheels 22 and 22 and the rear wheels 20 and 20. In the case of an ordinary working machine, the tractor T can be sufficiently supported by the four wheels. When working in a high place, it is not enough to support only the four wheels of the tractor T, and the portion of the high-altitude work machine may fall over. Therefore, the four outriggers 4-4. 13 ・ 13 is hydraulically projected to firmly support it on the ground to prevent it from falling.

The support frame of the aerial work machine is configured symmetrically on the left and right, and is a triangular frame 11.12 that passes outside the rear wheels 20.20.
・ 35 is provided. The front set bracket 9 and the outriggers 4.4 are supported at the positions of the tips of the frames 11.12 among the triangular frames 11.12.35. The tail wheel frame 15 has a width narrower than the width of the rear wheels 20 and 20 and projects rearward, and the tail wheel 14 is supported at the rear end of the tail wheel frame 15. The tail wheel 14 is mounted on an aerial work machine, so that the front wheel 22 rides over an obstacle during traveling, and the center of gravity of the tractor T moves rearward, which makes it likely to fall rearward.
It is arranged as an auxiliary wheel. Outrigger 13
・ 13 slides laterally from the position of the rear end of the triangular frame 35 and the front end of the tail wheel frame 15, and the left and right outriggers 13
It is structured so that the sense between 13 can be widely taken. Triangle frame 11.12.35 and tail wheel frame 15
With its base supported by, the boom frames 16, 36, 37 project upward and as a prismatic frame. From the frames 36, 36 in the state of the boom frames 16, 36, 37, two left and right lower booms 17, 17 and a first link 33, a second link 34 are projected upward. The middle part of the upper boom 18 is pivotally supported on the upper ends of the lower booms 17, 17, and the lower end of the upper boom 18 is connected to the upper end of the first link 33 as an arm 18a. The upper end of the second link 34 is connected to the third link 19 via the bell crank 32.
The bell crank 32 is pivotally supported at the same position as the upper boom 18 by a pivot shaft at the upper ends of the lower booms 17, 17.

A gondola support frame 31 of a gondola 30 is pivotally supported on upper ends of the upper boom 18 and the third link 19.

The bases of the first link 33 and the second link 34 intersect with each other and are pivotally supported at two positions on the boom frame 36. The boom cylinder 40 is provided between the lower booms 17 and 17 and the boom frame 36.
Is installed.

With this configuration, when the lower booms 17 and 17 and the upper boom 18 are vertically expanded and contracted due to the expansion and contraction of the boom cylinder 40, the gondola support frame 31 at the tip can keep the horizontal position. Similarly, the horizontal state can be maintained.

Next, referring to FIG. 3 and FIG. 4, an explanation will be given on the mounting state of the front working part of the working machine for high places of the present invention. Triangular frame
The front set bracket 9 is arranged at the tip of 11, 12, and 35 so as to be formed in a downward U-shape. The front set bracket 9 is covered from above the sub bracket 3, and the fixing metal fitting 10 pivotally supported on the front set bracket 9 is turned to the lower side of the sub bracket 3, and the front side bracket 3 and the front side are fixed by the fixing screws 10a. The part set bracket 9 is fixed so as not to come off. When fixing the front set bracket 9 and the sub-bracket 3, first, the tractor T is moved to a position close to the lower part of the work implement at high places, and the hydraulic take-out hole of the tractor T and the hydraulic piping of the work implement at high places are connected. Then, the work machine at height is supported by the outriggers 4 and 4 by the pressure oil discharged from the hydraulic pump attached to the engine of the tractor T, and is floated as shown in FIG. Move it to a position right below the work implement, position the bracket 2 and the sub-bracket 3 under the front set bracket 9, and then slide the sub-bracket 3 from this state to project the sub-bracket 3 under the front set bracket 9. Then, the outriggers 4 and 4 are reduced and the front set bracket 9 and the sub bracket 3 are fitted together. Therefore, the aerial work machine and the tractor T
By connecting the hydraulic take-out of the above, it is possible to mount the aerial work implement by utilizing the hydraulic device of the tractor T.

In the case where the sub-bracket 3 is used as an ordinary tractor T without attaching an aerial work implement, the sub-bracket 3 is attached to the bracket 2.
Store it on top of it and slide it inward to avoid contact with other obstacles.

The bracket 2 is securely fixed to the lower side of the clutch housing 21 of the tractor T.

Next, the connection between the hook bracket 5 and the rear set bracket 41 will be described with reference to FIGS. 5 to 9.

The hook bracket 5 has its base fixed on the rear axle housing 44 by bolts. The rear end of the hook bracket 5 extends obliquely upward, and the lift arm 23 of the tractor T, the top link 25, and
It is extended to a position where it does not engage with the PTO shaft 24 or the like. Then, an upward recess is formed at the rear end of the hook bracket 5.
5a is configured, and the connecting pin 7 of the rear set bracket 41 is fitted from above into the upward recess 5a. Further, a lock arm 6 pivotally supported by a pivot shaft 6a is arranged in a part of the hook bracket 5, and a fixing screw for surely locking an engagement fitting 8 described later in a locked state on the lock arm 6. 6b is screwed.

On the side of the connecting pin 7 provided laterally on the rear set bracket 41, an engaging fitting 8 is projected obliquely upward, and the locking arm 6 is fitted to the engaging fitting 8 from above.
The movement of the engaging fitting 8 is stopped and the connecting pin 7 is prevented from coming off.

Even when the hook bracket 5 and the rear set bracket 41 are attached, the tractor T is arranged as close as possible to the lower side of the aerial work implement to connect the hydraulic outlet of the tractor T and the hydraulic piping of the aerial work implement. As a result, the outriggers 13 and 13 can be used.
・ By raising the rear set bracket 41 side by 13 and moving the tractor T on the lower side thereof, the concave portion 5a facing upward of the hook bracket 5 is arranged, and then the outriggers 13 and 13 are contracted. By fitting the connecting pin 7 into the upward concave portion 5a, it can be easily mounted without using an input.

(F) Effects of the Invention Since the present invention is configured as described above, it has the following effects.

First, as in the present invention, the front part of the aerial work machine has a tractor T
Since the rear portion of the clutch housing 21 is supported by the hook bracket 5 protruding from the rear axle housing 44, the length of the overhang portion of the aerial work machine is reduced, and the tractor T can be turned in a mounted state. It became possible to drive between.

Secondly, while the aerial work machine is mounted and moved, the aerial work machine is in a folded state. At this time, the center of gravity comes to be located near the center of gravity of the tractor T. It is possible to give stability to the traveling of T.

[Brief description of drawings]

Fig. 1 is an overall side view of an aerial work machine mounted on the tractor T, Fig. 2 is an enlarged side view of the aerial work machine device taken out, and Fig. 3 is a front part set on the clutch housing 21 part. FIG. 4 is a perspective view from the front side before mounting the bracket 9, FIG. 4 is a perspective view from the rear side with the front set bracket 9 mounted on the sub bracket 3, and FIG. 5 is a rear axle housing of the tractor T. FIG. 6 is a rear perspective view showing the rear end portions of the left and right hook brackets 5 protruding rearward from 44, and FIG. 6 shows the rear set bracket 41 protruding from the working machine side to the hook bracket 5 to the hook bracket 5. 7 is a rear perspective view showing a state before being locked, FIG.
FIG. 8 is a side view of the hook bracket 5, FIG. 8 is a side view of the hook bracket 5 and the rear set bracket 41 combined, and FIG. 9 is a plan view of the hook bracket 5. T …… tractor 2 …… bracket 3 …… sub-bracket 4 ・ 4 ・ 13 ・ 13 …… outrigger 5 …… hook bracket 5 6 …… lock arm 7 …… connecting pin 8 …… engaging fitting 9 …… front part Set bracket 10 …… Fixing bracket 21 …… Clutch housing 41 …… Rear set bracket 44 …… Rear axle housing

Claims (1)

[Claims] Claims: 1. The front part of the work implement mounted on the tractor T is fixed to the clutch housing 21 of the tractor T, and the rear part of the work implement side is fixed to the rear axle housing 44 of the tractor T. An aerial work machine equipped with a tractor.