JPH042143Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a walk-behind cultivator that has an engine installed in a frame attached to the front of the transmission case and a tilling device provided at the rear of the transmission case.

[Conventional technology]

In walk-behind tillers, in order to prevent the soil thrown away by the tilling device installed at the rear during operation, the tilling device is covered with a tilling device cover shaped like a half cylinder with both ends closed. The support structure for the cover has generally been such that the central portion of the tiller cover is connected and fixed to the rear frame of the machine body extending rearward from the mission case.

[Problem that the invention attempts to solve]

When working, place near the front edge on both sides of the tiller cover.
Impacts are applied to the tiller cover from the front when it comes into contact with clods of soil on the ground from the front of the machine, or when soil thrown backwards by the wheels located in front of the tiller cover hits the tiller cover. In a structure in which a tilling device cover that is long in the width direction of the machine body is supported only at its center, there is a risk that the tilling device cover may be deformed by the above-mentioned impact.

Here, the purpose of the present invention is to provide a walk-behind tiller,
The purpose is to support the tillage device cover at several locations to create a structure that can withstand contact with the soil as described above.

[Means for solving problems]

The feature of the present invention is that the walk-behind cultivator as described above is configured as follows. In other words, support stays are attached to project from the left and right sides of the frame that supports the engine, and protectors that protect the front and left and right sides of the engine are connected and supported by the support stays. A pair of left and right connecting stays are constructed and connected across the front left and right portions of the device cover and the left and right support stays.

[Effect]

Since the above-mentioned protector is strong, the support stay that supports the protector is generally also constructed to have sufficient strength.

Therefore, the center portion of the tiller cover is connected to the rear frame of the machine body or the transmission case, and the front left and right portions are connected to the support stay via the connection stay.

As a result, the tilling device cover is connected and supported at three locations, including the central portion and the front left and right portions, by strong members (the rear frame of the machine body or the transmission case, and the support stay).

It also has an engine protector, so the engine at the front of the aircraft is also protected.

[Effect of idea]

As mentioned above, by connecting and supporting the three places on the front side of the tiller cover, especially connecting and supporting the front left and right parts, it is possible to prevent the soil thrown backward by the wheels from hitting the front side of the tiller cover. Also, the tilling device cover could be constructed so as not to be deformed, and the strength and durability of the vicinity of the tilling device in the walk-behind cultivator could be improved.

Furthermore, since the engine at the front of the fuselage is also protected by the protector, the engine is prevented from colliding with other objects and being damaged.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS A walk-behind cultivator that is an embodiment of the present invention will be described below based on the drawings.

As shown in Fig. 2, a frame 3 for supporting the engine 2 is attached to the front part of the transmission case 1, which has a pair of wheels 4, 4 pivotally supported at the bottom, and extends forward, and the engine 2 is installed on this frame 3. At the same time, the rear frame 5 of the machine body is extended rearward from the rear part of the mission case 1, the rotary tiller 6 and the tiller cover 7 are attached to the rear frame 5 of the machine body, and a control handle 8 is provided on the upper part of the mission case 1 for walking. It constitutes a type tiller.

The power from the engine 2 is transmitted to an input shaft (not shown) in the upper part of the transmission case 1 by a belt transmission mechanism 10 having a tension type clutch in the case 9.
It is transmitted to the rotary tiller 6 through a speed change operation to drive the wheels 4, 4, and is also transmitted from the input shaft to the rotary tiller 6 by a belt transmission mechanism (not shown).

On the frame 3 for supporting the engine 2, an L-shaped support stay 13 is attached to the front part, and support stays 14, 14 are attached approximately horizontally to both side parts, and the tips of each support stay 13, 14, 14 are attached to the frame 3 for supporting the engine 2. A protector 12 having a U-shape in plan view is installed and fixed in between, and an auxiliary protector 15 having substantially the same shape is fixed on this protector 12.

To explain in detail the connection structure between the tilling device cover 7 and the support stay 14 to which the present invention is applied, as shown in FIGS. 1 and 2, the frame 3
A support stay 14 extending laterally from the tiller cover 7 is connected to the left and right front edges of the tiller cover 7.
6 are constructed and connected.

[Brief explanation of the drawing]

The drawings show an embodiment of the walk-behind cultivator according to the present invention, with FIG. 1 being an overall plan view of the walk-behind cultivator, and FIG. 2 being an overall side view of the walk-behind cultivator. 1...Mission case, 2...Engine, 3
... Frame, 6... Tilling device, 7... Tilling device cover, 12... Protector, 14... Support stay, 16... Connection stay.

Claims (1)

[Scope of utility model registration request] Frame 3 attached to the front of transmission case 1
It is a walk-behind cultivator which is equipped with an engine 2 and a tilling device 6 at the rear of the transmission case 1, with support stays 14 protruding from both left and right sides of the frame 3. A protector 12 that protects the front part and both left and right side parts,
A walking type cultivator which is connected and supported by the support stay 14 and has a pair of left and right connecting stays 16 erected and connected across the front left and right portions of the tiller cover 7 of the tiller 6 and the left and right support stays 14. .