JPH0441796Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to a mower.

(Prior Art) For example, a reel mower that is connected to a truck includes a connecting frame that is connected to the tractor via a three-point link mechanism, a mower body that is equipped with a cutting reel, and that mowing work while traveling on the ground. have.

By the way, in the above-mentioned conventional reel mower, the ability to follow the ground has not been given much consideration.

(Problems to be Solved by the Invention) For this reason, the above-mentioned conventional reel mower has a problem in that it floats up even on small undulations of the ground, making it difficult to perform mowing work well.

The present invention aims to provide a mower that can solve the above problems.

(Means for Solving the Problems) In order to achieve the above object, the present invention is characterized in that a connecting frame 13 is provided on the tractor 1 via a link mechanism 8 so as to be able to move up and down. In this mower, a mower body 15 is attached to a mower body 13, and a front gauge wheel 33 and a rear gauge wheel 34 are provided for the mower body 15 to touch the ground and travel on the ground. The intermediate frame 14 is attached to the connecting frame 13 via the connecting frame 1.
The mower main body 15 is rotatably provided around a longitudinal support shaft 26 provided at the center in the left-right direction of the mower body 14 .
The left-right support shaft 35 is provided between the front gauge wheel 33 and the rear gauge wheel 34, and is rotatable around a left-right support shaft 35 provided in the front gauge wheel 33. and is provided at substantially the same height as the rear gauge wheel 34.

(Function) During mowing work, if the ground has undulations in the left-right direction, the mower main body 15 rotates around the support shaft 26 in the front-back direction, and when the ground has undulations in the front-back direction, By rotating the mower body 15 around the support shaft 35 in the left and right direction, the mower body 15 follows the ground without rising from the ground, and mowing work is performed.

(Embodiment) Hereinafter, an embodiment of the present invention will be described based on the drawings. In FIGS. 3 and 4, 1 is a tractor;
Reference numeral 2 denotes a tractor body, and on the rear part of the vehicle body 2, a hydraulic device 4 for lifting and lowering a working machine is mounted, which has a pair of left and right lift arms 3. 5 is a seat, 6 is a rear wheel, and 7 is a rear wheel fender.

Reference numeral 8 denotes a three-point linkage mechanism, which consists of a top link 9 in the center and a pair of lower links 10 on the left and right sides, and a reel mower 11 is connected to the rear of the tractor 1 via this three-point linkage mechanism 8 so as to be able to move up and down. .
12 is a lift rod.

As shown in FIGS. 1 and 2, the reel mower 11 includes a connecting frame 13 and an intermediate frame 14.
, a mower body 15, etc.

The connecting frame 13 has a triangular shape when viewed from the front, and includes a pair of left and right side plates 16 and a pair of front and rear connecting plates 17 that connect the lower ends of the side plates 16.

The vertical middle part of the side plate 16 is sloped to move inward as it goes upward, and a top link 9 is attached and detached by a mounting pin 19 via a swing link 18 between the upper ends of both side plates 16. installed on. The swing link 18 can be releasably fixed to the top link 9. The lower link 10 is removably attached to the lower end of each side plate 16 with a mounting pin 20, and the lower end edge of each side plate 16 is provided with a stopper surface 21 having an upwardly curved protrusion.
It is said that

The intermediate frame 14 includes cylindrical upper and lower horizontal members 22 and 23 installed horizontally in the left-right direction, both horizontal members 22,
A pair of left and right connecting plates 24 connecting the outer ends of 23
The upper horizontal member 22 has an upright part 25 erected at the center in the left-right direction, and these parts are connected to the reel mower 1.
It is located at the front of 1.

The upright portion 25 has a rectangular tube shape and is connected to the connecting frame 1.
The first support shaft 26 is inserted between the left and right center portions of the front and rear connecting plates 17 of No. 3 in the front and back direction, and the first support shaft 26 is inserted into and removably in the front and rear direction. The upper horizontal member 22 and the stopper surface 21 come into contact with each other to restrict the rotation thereof, as shown by the imaginary line in FIG.

The mower main body 15 performs reaping work while traveling on the ground, and includes a cutting reel 27 horizontally installed in the left-right direction, and a pair of left and right side covers 28 that cover both left and right sides of the cutting reel 27. Both side covers 28
An upper cover 29 that connects the upper ends and covers the upper side of the cutting reel 27, and one side cover 28.
Transmission case 30 disposed in and transmission case 30
A hydraulic motor 32 is provided on the upper part of the transmission case 30 and drives the cutting reel 27 via a transmission mechanism 31 inside the transmission case 30, and a pair of left and right front gauge wheels are provided at the front end of each side cover 28 so as to be vertically adjustable. 33
, and a single rear gauge wheel 34 provided at the rear ends of both side covers 28 so as to be vertically adjustable.

The lower part of the intermediate frame 14 is inserted between the front parts of both side covers 28, and the lower end of each connecting plate 24 is connected to the lower end of each side cover 28 and a second support shaft 35 in the left and right direction.
The mower main body 15 is rotatably and detachably connected to the intermediate frame 14 so as to be rotatable around the second support shaft 35.

Reference numerals 36 and 37 denote front and rear stoppers, which are arranged on the inner surface of each side cover 28, and the front and rear stoppers 36 and 37 are in contact with each connecting plate 24, as shown by the imaginary lines in FIG. By doing so, rotation of the mower body 15 around the second support shaft 35 is restricted.

According to the embodiment configured as described above, during grass cutting work, as shown in FIG. 3, the reel mower 1
1 is placed on the ground, the cutting reel 27 is rotationally driven by the hydraulic motor 32, and the reel mower 11 is towed by the tractor 1. As a result, the cutting reel 27 can perform mowing work.

In this case, when the ground has undulations in the left and right direction, the intermediate frame 1
As shown in FIG.
By rotating around the second support shaft 35, the mower main body 15 follows the undulations of the ground without floating up and performs mowing work well.

If the swinging link 18 is allowed to swing relative to the top link 9 during mowing work, the swinging of the swinging link 18 will cause the mower body 15 to follow the undulations of the ground in the front-rear direction. be able to.

In the embodiment, the present invention is applied to a reel mower, but the present invention can also be applied to other mowers.

(Effects of the invention) As detailed above, according to the invention, the mower body can be made to follow the undulations of the ground in both the front-rear direction and the left-right direction, and when there are undulations as described above. However, mowing work can be done well.
Moreover, the left-right support shaft 35 that rotatably supports the mower body 15 is located between the front gauge wheel 33 and the rear gauge wheel 34, and is approximately at the same height as the front gauge wheel 33 and the rear gauge wheel 34. Since the mower body 15 is provided in the horizontal position, the mower body 15 is
When the cage wheels 34, 35 and the mower main body 15 rotate around 5 to follow the undulations of the ground, there is almost no rocking movement in the front and rear directions, and therefore the mower can move along the ground without causing uneven cutting. The mowing work can be carried out reliably by following the ups and downs, and its practical effects are significant.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which FIG. 1 is a longitudinal sectional view of the main part, FIG. 2 is a sectional view taken along the line A-A in FIG. The figure is a plan view of the same. 1...Tractor, 8...3-point link, 13...
Connection frame, 15 mower body, 26, 35...
First and second support shafts.

Claims (1)

[Claims for Utility Model Registration] A connecting frame 13 is provided on the tractor 1 via a link mechanism 8 so as to be able to move up and down, and a mower body 15 is attached to the connecting frame 13. In the mower equipped with a front gauge wheel 33 and a rear gauge wheel 34 for traveling, the mower main body 15 is attached to the connection frame 13 via an intermediate frame 14, and the intermediate frame 14 is attached to the connecting frame 13. Connecting frame 1
The mower main body 15 is rotatably provided around a longitudinal support shaft 26 provided at the center in the left-right direction of the mower body 14 .
The left-right support shaft 35 is provided between the front gauge wheel 33 and the rear gauge wheel 34, and is rotatable around a left-right support shaft 35 provided in the front gauge wheel 33. A mower characterized in that the mower is provided at substantially the same height as the rear gauge wheel 34.