JPH0123237Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field The present invention is based on the invention by attaching another working machine such as a grass reversing hawk to a rotor equipped with a knife. Regarding rotary mowers that are configured to be able to perform tasks other than reaping, especially when working with other working machines,
This invention relates to a device for changing and maintaining a rotor knife in a non-cutting working position for convenient operation.

(b) Prior Art A rotary mower's reaping rotor with a cutting blade that can be folded into a small volume when not in operation is known, for example, from Japanese Utility Model Publication No. 10751/1973. The mounting base material (rotor) provided at the lower end of the vertical rotation shaft is formed to have a small diameter, and the support shaft that supports the base end of the support arm on the base material is attached to the horizontal axis along an imaginary circle concentric with the rotation shaft. The support arms are formed into a shape and supported on a mounting base material so that they can be gathered into a bundle around the vertical rotation axis by rotation by the support shaft, and each of the support arms and a sheath cylinder provided around the vertical rotation axis. The structure includes a removable locking tool and a locking portion.

(c) Problems to be solved by the invention Conventionally known devices are configured so that the cutting blade support arm can be changed between the cutting position and the folding position, but the intention is not to use the rotary mower. The aim was to reduce the volume occupied when storing the machine, and no consideration was given to the possibility of working with other working machines while the reaping rotor was installed, resulting in the following drawbacks.

In other words, in the conventional type, the cutting blade support arms are located on the upper surface of the cutting rotor, are folded in a position along the circumference of the vertical rotation axis, and each is secured to the sheath cylinder with a hook. Therefore, when working with a cutting rotor that is partially attached to the rotor, for example, when working with other working equipment such as a grass clipping reversing tool or a grass collecting tool, it is necessary to There is a problem that the objects to be processed, such as grass clippings, become entangled in the support arms that are folded into a bundle around the vertical rotation axis, and the locking by the hook may come off unexpectedly. If this happens, there is a safety problem in that it may interfere with the operating parts of other working machines, leading to damage and accidents.

The present invention was developed in view of the above-mentioned problems, and its purpose is to operate while the reaping rotor is attached and with other working equipment attached to it while partially overlapping the reaping rotor. The improved knife storage device eliminates entanglement of the workpiece being processed by other work equipment, and completely prevents interference accidents between the operating parts of other work equipment and the cutting blade. This is what we provide.

(d) Means for Solving the Problems In order to achieve the above object, the knife storage device of the present invention is a rotary mower, in which other work equipment is mounted further forward of the rotor installed at the front of the vehicle body. The knife is attached to the rotor in a cutting position in which it protrudes outward from the periphery of the rotor, and in a rotating storage position in which it overlaps the back surface of the rotor. The knife can be freely changed into a foldable and retracted position,
The rotor is characterized in that it is surrounded by a housing having a U-shaped cross section that is inserted into and fixed to the rotor.

(e) Effect In a rotary mower to which the knife storage device of the present invention with the above structure is applied, the knives are stored in an overlapping manner on the back surface of the rotor and surrounded by the storage device, so other work cannot be done while the rotor is equipped. When the machine is installed in conjunction with the machine, the workpiece being processed by another machine will not get entangled with the knife, and accidents such as interference between the knife and the operating parts of other machines will be prevented. This means that you can work safely.

(F) Example Next, a specific example of the present invention will be explained with reference to the drawings.

In Fig. 1, A is a self-propelled rotary mower having running wheels 1, and a handle 3, an engine 4, etc. are arranged at the rear of a vehicle body 2 of the rotary mower A, and a vertical shaft 5 is arranged at the front. A rotor 6 is attached to the lower end of the vertical shaft 5 to form a mower 7, and a reversing hawk 9 is disposed in front of the mower 7 via a frame 8 with a stabilizing wheel 10 so that its vertical position can be adjusted. The rotor 6 and the reversing hawk 9 are configured to rotate simultaneously at all times by being equipped with a reversing working machine 14 which is interlocked and connected to the upper end of the vertical shaft 5, a pulley 11, a belt 12 and a pulley 13. It is.

Next, on the rotor 6 of the mower 7, knives 15, 15 as shown in FIGS. The tip 17 has a cutting surface and protrudes from the edge of the rotor 6, and is conveniently formed for cutting grass and the like.

In addition, near the mounting position 16 of the knife 15,
That is, a storage device 19 having a U-shaped cross section 18 is provided on the rotor 6 on the inside of the rotation radius around the mounting position 16 of the knife 15, and the tip 17 of the knife 15 is inserted from the outer edge of the rotor 6 as shown in FIG. In this inserted state, the pin 21 is inserted into the hole 20 of the same diameter drilled in both the rotor 6 and the tip of the housing 19.
The rotor 6, the housing 19, and the tip of the knife 15 are integrally fixed, and a retaining pin 22 is inserted into the pin 21 to prevent it from falling off.

When the rotary mower A moves through the standing grass in the state shown in Fig. 1, the reversing working machine 14 at the front end of the rotary mower A and the mower 7 are rotating at the same time. Even if the blade 14 rotates, there is no significant effect, and the blades 15, 15 attached to the rotor 6 of the lawn mower 7 mowing the grass.
That is, the rotor 6 and knives 15, 1 at this time
5 is the same as the conventionally known relationship shown by the solid line in FIG.

Next, after the mowing work is completed, when the cut grass is dried by rotating the reversing hawk 9 of the reversing work device 14, the cut grass is turned over, but since the rotor 6 is also rotating, the knife 15, 15 must be stored in the rotor 6, and the storage device 1 of the rotor 6
Pull out the pins 21 and 21 of 9 and 19, and remove the storage device 1.
9 and 19 from the insertion into the rotor 6,
Rotate the knives 15, 15 in the direction of arrow A in FIG. 2, and as shown in FIG. are inserted into the holes 20 and fixed, and the retaining pins 22 are engaged with the pins 21 to prevent the pins 21 from falling off, thereby completing the storage of the knives 15, 15.

In this way, when the reversing work machine 14 is used with the knives 15, 15 stored in the rotor 6,
Even if the rotor 6 rotates, the pasture will not be mowed twice or thrice.

(g) Effects of the invention As explained above, the present invention is a rotary mower that can be used for operations other than reaping by attaching other work equipment to the vehicle body without removing the reaping work section, especially its rotor. However, when working with other work equipment,
Since the knife can be maintained in a non-cutting position, other work can be carried out without needlessly cutting or damaging the plants being regenerated in the mowed area, and the rotor can be rotated. Since problems such as double mowing can be avoided even if the cutting is continued, there is an advantage that the transmission system can be made simple without any disconnecting means.

In particular, the knife is stored on the back side of the rotor, and the knife in the retracted position is surrounded by a storage device with a U-shaped cross section. This eliminates the entanglement of workpieces caused by other work equipment, which occurs with products that are folded and stored in a bundle, resulting in better work, and accidents caused by interference with other work equipment due to the unexpected protrusion of the knife. There is a remarkable effect that the knife itself is also protected by the enclosing function of the storage device.

[Brief explanation of drawings]

FIG. 1 is an overall side view of a rotary mower according to the present invention, FIG. 2 is a top view of the rotor shown in FIG. A...Rotary mower, 2...Car body, 6...Rotor, 14...Other work equipment, 15...Knife.

Claims (1)

[Scope of utility model registration request] In the rotary mower A, another working machine 14 is installed in front of the rotor 6 installed at the front of the vehicle body 2 with a part of it wrapped around the rotor 6. The equipped knife 15 is provided so as to be changeable between a cutting position in which it protrudes outward from the periphery of the rotor and a retracted and retracted position in which it overlaps with the back surface of the rotor. A knife storage structure for a rotary mower, characterized in that it is surrounded by a storage device 19 having a U-shaped cross section that is inserted and fixed.