JPS6347653Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an engine starting device for agricultural machines such as harvesters, and provides an engine starting device that does not rely on a starter motor or starter dynamo, yet allows the engine to be started easily without the need for manual starter operation.

That is, the main feature is that the starting rope of the recoil starter is connected to a component of the work machine that is swingably installed relative to the machine base, so that the recoil starter can be operated by the swing of this component of the work machine. This structure eliminates the need for manual pulling of the recoil starter, and the entire starting device is relatively simple.

Hereinafter, embodiments of the present invention having the above characteristics will be described in detail with reference to the drawings.

In the illustrated embodiment, the agricultural machine is a stalk and culm reaper, and FIG. 1 shows an overall side view of the reaper.

The reaper is provided with a support bracket 2 on the upper part of a machine base A supported by a crawler traveling section 1, and on this support bracket 2, a frame 3 of a reaping conveyance mechanism, which is a working machine component B, can be rotated around a pivot 4. At the same time, a stem culm collection/collection tool 5 for collecting and processing the harvested stem culms is installed at a required part on the machine stand A, and these crawler running section 1, reaping conveyance mechanism B, and stem culm collection/collection tool 5 are installed. etc., can be appropriately driven by an engine 6 mounted on the machine base A, and the operating section 7 can control the operation of each working machine component and control the movement of the machine.

The reaping conveyance mechanism B is configured such that the frame 3 can be vertically oscillated about the pivot shaft 4 using a single-acting hydraulic cylinder 8, and is equipped with a divider 9, a weed pulling device 10, Cutting blade mechanism 1
1, it is configured by installing a lower transport mechanism 12 and an upper transport mechanism 13, and the upper and lower transport mechanisms 13, 1
The transfer end of No. 2 is configured such that the conveyed stem culm can be delivered to the stem culm collection device 5.

The engine 6 has a structure including a recoil starter C, and its starting rope 14 extends from the starter casing so as to be able to be pulled out and retracted, as in conventional ones, and its extending end is used for speed increasing operation. It is wound around one drum 15 of tool D.

The speed increasing actuator D is configured as shown in the cross-sectional view of FIG. 3, for example, that is, the drum 1
A rotary shaft 16 to which 5 is wedged is supported by a case 17,
A small diameter gear 18 with a clutch is fitted onto the shaft 16 in an idling state so that the small diameter gear 18 can be engaged and disengaged from the rotating shaft 16 by operating the clutch 19.
Another drum 22 is wedge-mounted to a rotating shaft 21 to which a large-diameter gear 20 that meshes with a small-diameter gear 18 is wedged, and a recoil mechanism 23 is attached thereto.A working rope 24 is wound around this drum 22. This structure extends outward from the case 17.

The extending end of the operating rope 24 is pivotally connected to the working machine component B which swings in the direction of arrow A about the pivot shaft 4, and when the clutch 19 is in the connected state, the working machine component The actuating rope 24 is engaged by the downward movement of the part B, and the starting rope 14 is engaged in the direction C to operate the recoil starter C.

Although the illustration of the intermittent operation mechanism of the clutch 19 is omitted, it is configured so that it can be operated on and off at the driver's hand using appropriate means, and when the work machine component B is lowered. When the lower limit position is reached, be sure to use the clutch disconnection actuator 25 to
The configuration is such that the state is changed to a disconnected state.

Next, the operation of the embodiment apparatus configured as described above will be explained. When the reaping machine (agricultural working machine) is to be moved, the engine 6 is first started, but before starting, the reaping conveyance mechanism B is held in the raised position as shown by the imaginary line in FIG.

Therefore, if the clutch 19 of the actuating tool D is connected and the reaping and conveying mechanism B is moved downward by its own weight as shown by the solid line, this operation will cause the actuating rope 24 to be engaged as shown by the arrow C. to rotate the drum 22 and gear 20, so the rotating shaft 16
The side drum 15 is rotated at an increased speed, and the starting rope 14 is wound up vigorously, so that the recoil starter C is operated and the engine 6 can be started.

When the engine is started, the reaping transport section B is at the lower limit position, and the clutch 19 is switched to the power disconnection state by the cutting actuator 25, so the drum 15 side is in a free rotation state and the starting rope 14 is It is rewound to the recoil starter C side.

In addition, since the drum 22 side is also in a free rotation state, even if the reaping conveyance mechanism B is arbitrarily moved up and down by adjusting the cutting height or rotating the machine during work after the engine is started, the operating rope 24 recoils as it moves up and down. Since it is wound into or pulled out from the drum 22 by the mechanism 23, it can be moved up and down without any hindrance.

If the engine is to be stopped at the end of the work or during an interruption, the reaping and conveying mechanism B is raised as shown by the imaginary line in FIG. 1, and then the engine is stopped in preparation for the next engine start.

If for some reason the engine stops when the reaping transport mechanism B is in the lowered position, or if the engine does not start after one downward movement of the reaping transport mechanism B, manually move the reaping transport mechanism B. It can be raised and reactivated, but
In such a case, by pulling the starting rope 14 by hand, the engine can be started manually as in the conventional case.

In addition, FIG. 4 shows an embodiment in which the work machine component B that operates the recoil starter C is a stem culm collection tool 5. In the illustrated example, the collection tool is formed into a belt conveyor mechanism and the machine base is It is mounted so that it can swing around the rotation fulcrum 26 of A, and is configured so that the posture can be changed arbitrarily between the usage state shown by the imaginary line and the storage position shown by the solid line, and the stroke of descending from the storage position to the usage position. The structure is such that it is used for engaging the operating rope 24.

As described above with reference to the embodiments, the detailed structure and operation of the present invention is such that the recoil starter C is activated by the swinging of the working machine component B through the operating rope 24, the speed increasing transmission D, and the starting rope 14. As a result, the engine can be started safely, reliably, and easily without the need for manually pulling ropes; Even if the reaping conveyance mechanism B is arbitrarily moved up and down by adjusting the cutting height or rotating the machine during work after starting, it can be moved up and down without any problem without activating the starting rope 24. , it has the advantage of being suitable for implementation.

[Brief explanation of drawings]

Fig. 1 is an overall side view of a stem culm reaper using the device of the present invention, Fig. 2 is a schematic side view of the main parts of the same reaper, Fig. 3 is a cross-sectional view, and Fig. 4 is an explanatory view of another example. be. A...Machine base, B...Work machine components, C...Recoil starter, 14...Rope.

Claims (1)

[Claims for Utility Model Registration] An operating rope 24 extending from a working machine component B which is swingably installed with respect to the machine base A and a starting rope 14 of a recoil starter C are connected via a speed increasing actuator D. The speed increasing actuator D has a recoil mechanism 23 interlocked with the actuating rope 24.
The drum 25 with attached drum 25 and the drum 15 interlocked with the starting rope 14 are configured to be transmission-connected in a freely disconnectable manner, so that the recoil starter C can be actuated by the swinging of the working machine component B. Features: Engine starting device for agricultural machinery. The engine starting device according to claim 1, wherein the working machine component B is a reaping conveyance section of a reaping harvester. The engine starting device according to claim 1, which is a stem culm collection tool for a reaping and harvesting machine, in which the working machine component B is foldably installed on the machine stand A so that it can be folded and stored.