JPH0347009Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention is an agricultural machine in which the engine, transmission, and working device are connected in this order from the front of the machine body, and a single running wheel is connected through a transmission case. The present invention relates to a stand structure for a one-wheeled management machine which is interlocked and cantilevered to the transmission.

[Prior art]

As a stand structure for a one-wheeled walking control machine, for example, as described in Japanese Utility Model Application Publication No. 59-182453, a stand is attached to the side where the transmission case for the cantilever running wheel is arranged, or 1977
As shown in Japanese Patent Nos. 131352 and 154445, it has been proposed that a stand is attached to the transmission case itself. However, in general, this type of control machine has an exhaust gas muffler placed on the side where the transmission case for driving the wheels is located, so if it falls over to this side while driving mainly outside the field, it may cause damage to stones, concrete, paved surfaces, etc. Even if the vehicle collides with the vehicle, the engine will not be directly damaged. However, there are almost no parts to protect the engine on the side without the transmission case, that is, the side without the stand, so in the event of a fall like the one mentioned above, there is a risk of some damage to the engine, such as lubricant oil leaking from the seal. It could happen.

[Problem that the invention attempts to solve]

As mentioned above, for a single-wheeled management machine with a stand attached, a special engine protection member must be installed on the side of the engine that does not have the stand.
Since the member and the stand are mounted separately and in a single-purpose manner, there is a problem in that not only the weight of the machine increases, but also the manufacturing cost increases considerably.

The present invention aims to eliminate the above-mentioned drawbacks through simple structural improvements.

[Means to solve the problem]

The characteristic structure of this invention to achieve the above purpose is as follows:
A stand having approximately the same length as the main part is pivoted at its base on the side of the main part of the fuselage consisting of the engine and transmission where the transmission case is not present, and the stand is in a non-ground retracted position. At least a part of the engine is located at a lateral position of the engine, separated from the side surface of the engine by an appropriate small distance, and its functions and effects are as follows.

[Effect]

When stopping a single-wheel walking type management machine equipped with the above-mentioned stand structure, whether inside or outside the field, the free end of the stand may be driven in the direction of making contact with the ground, thereby changing the stand from the non-ground retracted position to the ground position. At the same time, in this grounding posture, the free end of the stand, the wheel grounding point, and the rear working device or tail wheel or ground sliding rod are located at each vertex of the elongated triangle on the ground. ,
Therefore, this one-wheel management machine can maintain a stable ground posture without falling sideways.

On the other hand, in the unlikely event that the vehicle falls over while driving in or out of the field, there is an exhaust muffler on one side and a part of the stand in a retracted position on the other side, which protrudes slightly from the side of the engine. The engine is reliably protected from being directly hit by hard objects on the ground, such as stones.

〔effect〕

As explained above, in the present invention, a part of the stand also functions as a protector for the engine, so there is no need to provide a special protective member separately from the stand, and therefore the structure of the one-wheeled management machine Various effects such as simplification, ease of operation, and further reduction in manufacturing costs can be obtained.

In particular, as will be explained later in the embodiments, when a handle portion with a protector function is formed in a part of the stand, handling becomes even easier.

〔Example〕

In the embodiment shown in FIGS. 1 to 3, the engine 1, the transmission 2, and the power take-off section 4 to the working device 3 are integrally connected in this order from the front of the machine body, and It is similar to the conventional one in that a single running wheel 5 is interlocked with the transmission 2 in a cantilevered manner via a transmission case 6, and a ground sliding rod 7 is provided vertically at the rear. The features of the present invention are as follows.

That is, the stand 8 is disposed on the side of the main body part M consisting of the engine 1 and the transmission 2, where the exhaust muffler 18, the transmission case 6, etc. are not present (see FIG. 2), and in this example, the stand 8 is located at the base 8a. is pivotally mounted near the rear end of the transmission 2. The free end side of the stand 8 is located approximately to the side of the engine 1 in the retracted position shown by the solid line in FIG. 1, and when viewed from the front, as shown in FIG. A part of the handle portion 8b is bent so as to be located at a position separated from the side surface of the engine 1 by an appropriate small distance.

Stand 8 in the ground position shown by chain lines in Figures 1 and 2
The closer to the free end of the
Alternatively, the grounding points of the sliding rod 7 are located at each vertex of a triangle on the ground.

Next, the stand pivoting mechanism and holding mechanism will be explained with reference to FIG. 3. The base 8a of the stand is pivoted to a bracket 10 by a pivot pin 9, and this bracket is connected to the rear of the transmission 2 as described above. The pivot pin 9 is sandwiched between the bracket and stoppers 1 are provided at two opposing points.
1 and 12 are provided upright, and on the other hand, a spring locking piece 13 protrudes from the stand base 8a, and another spring locking piece 14 protrudes from a bracket portion that sandwiches the pivot pin 9 and faces the locking piece. A tension spring 15 is tensioned between these locking pieces 13 and 14. Therefore, when the stand 8 is pivoted from the stored position in contact with one stopper 11 to the grounded position in contact with the other stopper 12, and when pivoted in the opposite direction, the tension of the spring is reduced in both cases. It is necessary to overcome the intermediate consideration point, which is the maximum, in other words, both the stowed and grounded postures are maintained stably. In the figure, reference numeral 16 denotes a holder made of a spring plate attached to the aircraft body via a bracket 17, and prevents the stand 8 from swinging in the retracted position.

[Another Embodiment] The embodiment shown in FIG. 4 is different from those shown in FIGS. The point where it is pivoted,
Correspondingly, a handle portion 8b that also serves as a protector for the engine 1 is formed near the base portion 8a. However, in terms of its action, since the handle portion 8b is close to the pivot pin 9, the positional relationship of the force point, fulcrum point, and point of action is
Unlike the one in the figure, a slightly stronger force is required to pivot the stand, but the stability of the grounding posture is as shown in Figures 1 to 3 because the stand 8 is hanging down from the vicinity of the heavy engine 1. better than. In this example, an alternative tail wheel (not shown) is attached to the ground sliding rod.

Although a small-sized rotary tiller is illustrated as the working device 3 in FIGS. 1 to 4, it goes without saying that the working device 3 is not limited to this, and any other device such as a plow can be attached.

[Brief explanation of the drawing]

The drawings show an embodiment of the stand structure of the single-wheel walking management machine according to the present invention, and FIG. 1 is an overall side view, and FIG.
The figure is a front view, FIG. 3 is an enlarged perspective view of the stand pivot, and FIG. 4 is a side view of main parts of another embodiment. 1...Engine, 2...Transmission,
3... Working device, 5... Running wheel, 6... Transmission case, 8... Stand, 8a... Base, 8b...
Handle part, M...Main part of the fuselage.

Claims (1)

[Claims for Utility Model Registration] 1. An engine 1, a transmission 2, and a working device 3 are connected in this order from the front of the machine, and a single running wheel 5 is cantilevered to the transmission via a transmission case 6. In the stand structure of a single-wheeled management machine that is interlocked and connected in a shape,
A stand 8 having approximately the same length as the main part is pivoted at its base 8a on the side of the main part M of the fuselage consisting of the engine 1 and the transmission 2, where the transmission case 6 is not present, and is non-grounded. At least a portion 8b of the stand 8 in the retracted position
1. A stand structure for a one-wheeled management machine, characterized in that the stand is located at a lateral position of the engine 1 at a suitable small distance from the side surface of the engine. 2. The stand structure according to claim 1, wherein a portion 8b of the stand 8 is formed as a handle portion. 3. The stand structure according to claim 1, wherein the base 8a of the stand 8 is pivotally mounted near the rear end of the transmission 2 in the main body part M. 4. The stand structure according to claim 1, wherein the base 8a of the stand 8 is pivotally mounted near the front end of the engine 1 in the main body part M. 5. The stand according to any one of claims 1 to 4, wherein the stand 8 is configured to be switched between a grounded position and a retracted position by a toggle spring 15. structure.