JPH0212825Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a grass collection case that is attached to the rear of a self-propelled lawn mower, particularly a riding type lawn mower, to collect and store grass debris cut by a rotary blade.

The grass collection case is connected to the grass waste discharge port of the cutting blade of the lawn mower through a duct to guide and collect grass waste into the case, so the case needs to have a large capacity.

As a way to increase the capacity of a grass collection case, the height of the case may be increased or the front and back length of the case may be extended, but increasing the height raises the center of gravity, which may cause the car to fall over when traveling across a slope. There is a risk. If the front and rear length of the case is extended, the bottom of the grass collection case may touch the ground in places where there are ups and downs, and if a large amount of grass debris accumulates inside the case, the rear part becomes heavy and the stability of operation becomes unstable. It is something that is damaged.

When grass debris has accumulated in the grass collection case, the case is opened and thrown away, but since the case has a fairly large capacity, it would take effort to scrape out the grass debris if the outlet was provided on the side of the case. need.
Also, with the type that opens the bottom, whether it's a door type or a drawer type, you can't take everything out unless you move it forward. In other words, the discarded grass waste does not accumulate in one place. In order to drop all the items in one place, you can make the bottom higher, but this has the disadvantage of raising the center of gravity and making driving unstable.

In view of the above points, the purpose of the present invention is to provide a grass collection case that has a large capacity, is stable, and can drop grass debris in one place without having to move forward when discharging grass debris. .

The structure of the embodiment shown in the drawings will be explained. 1
Reference numeral 4 indicates a riding lawn mower having a cutting blade section 3 in which a plurality of horizontally rotating cutting blades 2 are arranged side by side on the lower surface of the center of the vehicle body; 4 indicates a grass collecting case of the present invention attached to the rear of the lawn mower 1 with an arm 5 , 6 is a grass debris guide duct connecting the cutting blade part 3 and the grass collecting case 4, 7 is a suction fan provided in the middle of the duct 5, and 8 is a fan drive motor.

The grass collecting case 4 is a box having a substantially L-shaped longitudinal section, and an air filter 9 is stretched over the top opening of the vertical portion 4A. As shown in FIG. 3, a surface 4D including a diagonal line connecting the inner corner a of the bent portion of the case 4 and a position c where a perpendicular line b passing through the center of the vertical portion 4A intersects with the bottom surface 4c is defined as a dividing surface. A hinge 10 is attached to the inner corner a as shown in FIG. 1 so that the horizontal portion 4B of the box can be rotated upward about the inner corner a.

Hooks 11 that can be hooked and removed from the mating edges of the dividing surfaces 4D are provided. The structure of the hook 11 is arbitrary, but for example, as shown in FIG. A pin 15 on which the hook 11 engages is attached, and an operating wire 16 connected to the hook 11 is extended to the vicinity of the driver's seat and connected to a hook operating handle 17. 18 is a spring that biases the hook 11 in the engaging direction, and 19 is a spring that automatically opens the side portion 4B of the box.In addition to the tension coil spring shown in the figure, a torsion coil spring incorporated in the hinge 10 may be used. .

When the handle 17 is pulled, the hook 11 and the pin 15 are disengaged via the wire 16, and the horizontal portion 4 of the box is released.
B rotates upward around the hinge 10 as shown by the chain line in FIG. 1 by the force of the spring 19. Then, the vertical part 4A opens diagonally downward using the dividing surface 4D as an opening, and the dividing surface of the horizontal part 4B, that is, the opening, faces downward and the bottom surface 4C opens wide, and the grass debris in the vertical part 4A and the horizontal part 4B are swept away. drop down.

As described above, the grass collection case 4 of the present invention consists of a box having a substantially L-shaped vertical section, and the inside corner a of the bent part is
And the perpendicular b passing through the center of the vertical part 4A of the box is the bottom surface 4
A plane 4D including a diagonal line connecting C and the intersection point c is used as a dividing plane, and a hinge 10 is provided at the inner corner a so that the horizontal part 4B of the box can be rotated upward about the inner corner a. , hook mechanisms 11 and 15 that can be attached to and removed from the mating edges of the dividing surfaces 4D are provided, so that the capacity of the grass collection case 4 increases by expanding upward and backward, and the center of gravity also increases. There is no backward movement, and stability in maneuvering is maintained.

When the case 4 is opened, the grass debris in the vertical portion 4A falls almost directly below, and the grass debris in the horizontal portion 4B falls directly behind, so that they do not pile up.
Therefore, there is no need to move the machine body 1 when disposing of grass waste, and the work of discharging grass waste can be done quickly and easily. In addition, since the bottom surface 4C of the case 4 can be lowered, the capacity is large, and the center of gravity is low and stability is good, which is effective as an improved grass collection case attached to a self-propelled lawn mower.

[Brief explanation of the drawing]

Figure 1 is a side view of the rear half of the self-propelled lawn mower with the grass collection case of the present invention attached, Figure 2 is its plan view, and Figure 3
The figure is a side view of the grass collection case, and Figure 4 is an enlarged side view of the hook mechanism. 1 is a riding lawn mower, 3 is a cutting blade part, 4 is a grass collecting case, 4A is a vertical part, 4B is a horizontal part, 4C is a bottom surface,
4D is a dividing surface, 5 is a mounting arm, 6 is a duct, 10 is a hinge, and 11 and 15 are hook mechanisms.

Claims (1)

[Scope of utility model registration request] Consisting of a box with a substantially L-shaped longitudinal section, the dividing plane is a surface including a diagonal line connecting the inside corner of the bent part and the position where a perpendicular line passing through the center of the vertical part of the box intersects with the bottom surface,
A hinge is provided at the inner corner so that the horizontal part of the box can be rotated upward about the inner corner,
A self-propelled type with a hook mechanism that can be attached to and removed from the mating edges of the split surfaces, an arm for attaching to a self-propelled lawn mower on the outside of the vertical part of the box, and a duct for guiding grass debris connected to the box. Lawnmower grass collection case.