JPS6145776Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a cover device for a muzzle mower that protects a tractor equipped with a muzzle mower of the rear discharge type from grass clippings.

BACKGROUND TECHNOLOGY There are two types of front mowers attached to the front of a tractor: a side discharge type that discharges cut grass to one side of the mower, and a rear discharge type that discharges cut grass to the rear of the mower. Both types use the rotation of the cutting part to generate wind to raise the grass or release the grass clippings.

Problems to be Solved by the Invention The front mower of the side-discharge type discharges the grass clippings to the side of the tractor, so the grass clippings do not have much of a negative impact on the tractor. The grass clippings are discharged below the tractor.
Grass clippings may be blown up by the wind in the cutting section, external wind, or when the tractor is running, get into the tractor bonnet, stick to the radiator, clog the air cleaner, or stick to the engine. It can also burn, causing various negative effects on tractors.

Means for Solving the Problems The present invention provides a flexible cover that extends from the top cover of the front mower, between the front wheels of the tractor, and below the air cleaner, radiator, and engine. , it is possible to solve the problems of the prior art.

That is, the specific configuration of the problem-solving means of the present invention is characterized in that a front mower 10 of the rear-discharge type of grass clippings is mounted on the front part of the tractor 1 so as to be able to rise and fall freely, and the upper cover 28 of the mower 10 A flexible cover 31 extends from the front wheels 2 of the tractor 1 to below the air cleaner 34, radiator 35, and engine 36. Its left and right ends are located near the left and right front wheels 2 in order to cover it from below.

Embodiments Hereinafter, embodiments of the present invention will be described based on the drawings.

In FIGS. 1 to 3, reference numeral 1 denotes a tractor, which has a pair of left and right front wheels 2 and a rear wheel (not shown). 3 is attached to the tractor 1 via the mounting frame 4.
The front three-point link mechanism is provided at the front of the vehicle and includes a top link 5 and a lower link 6, each of which can be raised and lowered by a hydraulic cylinder 9 via a lift rod 7 and a lift arm 8.

Reference numeral 10 denotes a front-loading disc mower that discharges grass clippings to the rear, and is mounted to the front of the tractor 1 via a front-loading three-point linkage mechanism 3 so as to be able to rise and lower freely.This disc mower 10 is constructed as follows. Ru. That is, a gear case 11 has an input shaft 12 connected to the front PTO shaft of the tractor 1 via a universal joint, and a pair of support arms 13 are attached to both sides. A mounting arm 14 connected to the lower link 6 is provided at the middle part of each support arm 13, and a support arm 15 is provided at the outer end of each support arm 13 to protrude rearward.
A top mast 16 for the top link 5 is provided spanning between the rear ends of the top link 5.

17 is a flat cutter bar that also serves as a transmission case.
Four rotary disks 18 are laterally provided thereon via rotary shafts. Two cutting blade bodies 20 are swingably supported on each rotary disk 18 at point-symmetrical positions, and a fixed cutting blade body 21 facing each of the cutting blade bodies 20 is in the form of a band and has a cutter bar. The sled member 17 is provided over substantially the entire width at the front edge of the sled member 17, and is laterally supported by a plurality of sled members 22.
Rotating disks 1 at both ends of each rotating disk 18
8 are driven inwardly toward each other, and the intermediate rotary disk 18 is driven outwardly.

The rotating disks 18 at both ends are positioned in front of each front wheel 2 of the tractor 1, and each rotating disk 18 has a grass collection drum 24 in the shape of a truncated cone.
are provided so that they can rotate together. Projections 25 are provided on the outer peripheral surface of each grass collection drum 24 in the vertical direction. Support members 26 that protrude rearward are provided at both ends of the cutter bar 17, and each support member 26
A grass collection board 27 is provided. Reference numeral 28 denotes an upper cover that covers the rotary disk 18 and the like, and is attached to the support arm 13 and the like, and a rubber sag 29 is provided at the periphery of the upper cover 28. With the grass collection board 27 and rubber dripping 29, etc.,
The cut grass is discharged and guided to the rear and left in a position where it cannot be stepped on by the front wheels 2.

Reference numeral 31 denotes a flexible sheet cover made of rubber, cloth, synthetic resin, or the like, the tip of which is bent and joined, and is fitted onto the mounting rod 32 . This mounting rod 3
2 is supported at both ends by L-shaped brackets 33 bolted or welded to the upper surface of the upper cover 28.

The flexible seat cover 31 covers the air cleaner 34, radiator 35 and engine 36 of the tractor 1.
from below to cover the front wheel 2 from the upper cover 28.
The seat cover 31 extends below the transmission case 37, and its width is approximately equal to the width of the bonnet 38, and does not come into contact with the left and right front wheels 2. Located nearby.

One end of a coil spring 40 is engaged with the left and right rear ends of the seat cover 31, and a hook 41 is provided at the other end of the coil spring 40. Reference numeral 42 denotes a hook engaging pin provided on the left and right steps 43, and the hook 41 can be engaged with the engaging pin 42 when the coil spring 40 is pulled.

By stretching the seat cover 31 from the upper cover 28 to the transmission case 37,
Since the front lower surface of the tractor 1 is almost completely covered,
When the disk mower 10 operates, grass etc. are cut and scattered, and even if wind is generated by the rotation of the cutting blade body 20, rotary disk 18, grass collection drum 24, etc., the grass clippings are not carried by the air cleaner 34. The grass clippings will not be sucked in and will not adhere to the radiator 35 and engine 36, thereby avoiding any adverse effects on the tractor 1 caused by the grass clippings.

It is sufficient that the seat cover 31 has a length from the rear edge of the upper cover 28 to below the engine 36, but as shown in FIG. It may also serve as dustproof. Also, since the engine 36 becomes hot, it is better not to let the seat cover 31 come into contact with it, and since the disk mower 10 is raised and lowered,
The seat cover 31 moves so as to expand and contract the coil spring 40. For this purpose, horizontal bar-shaped cover guides 4 are provided at the rear edge of the upper cover 28, the front edge of the mounting frame 4, the transmission case 37, etc.
4, 45, and 46, and seat cover 3.
It is preferable to separate the engine 36 from the engine 36 and the like and to make it easy to move back and forth.

4 to 6 show an example of a drive device for the front-mounted disk mower 10, and the drive device 5
1 is a hydraulic system with a built-in hydraulic mower and transmission
In the PTO device, a PTO shaft 52 protrudes from the front, a mounting portion 53 is formed at the rear, and pressure oil is supplied from the tractor 1.

In FIG. 4, reference numeral 54 denotes a front bumper or a front wheel bearing stand of the tractor 1, and one end of, for example, four support pins 55 is screwed or welded to the mounting portion 53 of the drive device 51. By fitting the support pin 55 into the hole 53a and inserting the retaining pin 56 into the hole 53a, the drive device 51 is mounted on the tractor 1 and removed from the PTO shaft 52. Power is transmitted to the input shaft 12 via the universal joint.

Since this drive device 51 is hydraulic and only needs to be fitted to the support pin 55, it is extremely easy to attach and detach, and can also be attached to the mower 10 side.

5 and 6 show an example in which the drive device 51 is attached to the front mower 10 side. Mounting plates 57, 57 are welded to the top mast 16 of the front mower 10, and the mounting plates 57, 57 are supported. The pin 55 is screwed or welded so as to project backward. Then, the drive device 51 is mounted by fitting the four support pins 55 into the holes 53a of the mounting portion 53, and the PTO shaft 52 and the input shaft 1
2 are connected by a connecting body 58 such as a spline cylinder or a coupling.

In this way, if the drive device 51 of the muzzle-mounted work machine is attached to the work machine side or easily attached to and detached from the tractor 1, if the muzzle-mounted work machine is not installed on the tractor 1, the drive device 51 can be attached to the tractor. 1, it is easy to attach other work equipment, such as a front loader, or the drive device is not damaged.

According to the present invention described in detail above, the flexible cover 31 extends from the upper cover 28 of the mower 10, passes between the front wheels 2 of the tractor 1, and extends below the air cleaner 34, radiator 35, and engine 36. Since the flexible cover 31 covers the air cleaner 34, radiator 35, and engine 36 from below, its left and right ends are located near the left and right front wheels 2, so that the grass clippings cut by the front mower 10 are discharged to the rear. Then, a part of the grass clippings is scattered between the field and the tractor due to discharged wind or external wind, but the flow toward the air cleaner 34, radiator 35, and engine 36 is blocked by the flexible cover 31. However, it is possible to prevent grass clippings from being sucked into the air cleaner 34 or adhering to the radiator 35 and engine 36.

[Brief explanation of drawings]

Figures 1 to 3 show an embodiment of the present invention, with Figure 1 being an overall side view, Figure 2 being a plan view, and Figure 3 being a top view.
The figure is a perspective view of the main parts, Figures 4 to 6 show an example of a drive device for a muzzle-mounted mower, Fig. 4 is a side view of the unit mounted on a tractor, and Figure 5 is a side view of the drive unit mounted on a muzzle-mounted mower. FIG. 6 is a partially sectional side view taken in the direction of the arrow in FIG. 5. 1...Tractor, 3...Muzzle three-point linkage mechanism,
10... Front-mounted disk mower, 20... Cutting blade body, 24... Grass collection drum, 28... Upper cover,
31...seat cover, 36...engine, 41
...Futsuk, 43...Step.

Claims (1)

[Scope of utility model registration request] In the tractor 1, in which a front mower 10 of the rear discharge type is attached to the front part of the tractor 1 so as to be able to be raised and lowered, an air cleaner 34, a radiator 35, and an engine 36 are installed from the upper cover 28 of the mower 10 through between the front wheels 2 of the tractor 1. Flexible cover 3 up to the bottom of
1 is extended, and the left and right ends of the flexible cover 31 are located near the left and right front wheels 2 to cover the air cleaner 34, radiator 35, and engine 36 from below. Moore's cover device.