JPH0235Y2 - - Google Patents

Description

[Detailed description of the invention] 〇 Industrial application field The present invention relates to a support structure for a bonnet in a lawn mower.

〇 Conventional technology Regarding electric mowers,
Like the No. ``lawn mower,'' it has an electric motor inside and does not have a bonnet. In engine-powered mowers, the engine is exposed and there is no bonnet.

〇 Problems that the invention aims to solve When engine-driven mowers are used near residences, they have the drawback of causing noise problems.

〇 Measures to solve the problem: A bonnet is provided to surround the engine for driving the cutting blade, and the bonnet is rotatable toward the rear of the machine, and when the engine is in the open position at the rear of the machine, a pair of left and right bonnets are installed. A stepped portion is formed on the bonnet along the length of the fuselage to engage with the handle rod.

〇 Embodiment Referring to FIGS. 3 and 4, the chassis 1 includes a pair of left and right front wheels 2a, 2a, a rear wheel 2b,
2b is mounted on a shaft, and the vertical rotating shaft 3 is mounted on the chassis 1.
The engine 4 is rotatably supported in the center of the chassis 1, and an engine 4 is mounted above the chassis 1. The prime mover shaft of an engine 5 and a rotating shaft 3 are directly connected, and a cutting blade 6 is detachably attached to the lower end of the rotating shaft 3.

It surrounds the cutting blade 6 and communicates the discharge port 7 on the back of the machine with the space 8 around the cutting blade on the bottom of the machine in order to guide the cut grass toward the rear of the machine.
A casing 10 forming a spiral cavity 9 is fixed to a chassis 1. A catch bag 11 continuous to the discharge port 7 is detachably attached to the rear end of the casing 10.

On both sides of the rear upper end of the casing 10, the bases of a pair of left and right handle rods 12, 12 are fixed or detachable, and the handle rods 12, 12 are diagonally provided toward the rear and upward of the machine body. Note that the handle support 12a is fixed to the rear of the casing 10, or the handle support 12a is fixed to the upper end of a column that stands upright from the rear end of the chassis 1, and the bases of the handle rods 12, 12 are attached to the handle support. The handle rods 12, 12 may be configured to be fixed or detachable and supported via the handle support 12a.

The rear end 13a of the bonnet 13, which surrounds the upper half of the engine 4, is attached to the rear upper end of the casing 10 (or to the horizontal plate fixed to the upper end of the strut when the above-mentioned strut is installed) by pivoting means 14 such as a hinge.
This provides support for the sides of the aircraft. The tip 13b of the bonnet 13 and the front surface of the casing 10 can be locked together by appropriate locking means.

As shown in the phantom line in FIG. 1, the bonnet 13 has a front-opening structure that allows it to rotate rearward about the pivot means 14 as a fulcrum. Rod 12,1
The shape has a stepped portion 15 in the longitudinal direction that comes into contact with 2.

In the state shown by the imaginary line in FIG. 1, in which the engine 4 is opened forward for maintenance and inspection, as shown in FIG.
The vertical portions 15a of 5 and 15 are the handle rods 12 and 12.
The horizontal portion 1 of the step portions 15, 15 is engaged with the inner surface of the bonnet 13 to prevent the bonnet 13 from swinging from side to side.
5b is supported in contact with the upper surfaces of the handle bars 12, 12.

〇 Effects of the invention The bonnet encloses the upper part of the engine, which reduces noise, and when inspecting the engine, maintenance and inspection work is easy because it opens from the front. Further, since the bonnet is supported over a wide area by the engagement between the longitudinal step and the pair of left and right handle bars, the bonnet is supported stably and the supporting portions are less likely to be damaged.

[Brief explanation of the drawing]

FIG. 1 is a side view of a mower implementing the present invention. FIG. 2 is also a plan view. Figure 3 is similar to Figure 1 S.
FIG. 3 is an explanatory diagram showing a bonnet supporting action in which the handle support body and the stepped portion engage with each other when the bonnet is in the forward-opened state, shown in a cross-sectional view taken along the -S line; 4...Engine, 10...Casing, 13...
...Bonnet, 14...Pivot means, 15...Step.

Claims (1)

[Scope of utility model registration request] A cutting blade protruding downward from a chassis 1 supported by a plurality of vehicles is driven by an engine 4 mounted on the chassis 1 to surround the cutting blade and guide the cut grass toward the rear of the machine. In a lawn mower in which a casing 10 forming a cavity is fixed to a chassis 1, a pair of left and right handle rods 1
2 and 12 are installed obliquely from the rear of the casing 10 toward the rear and upward of the fuselage, and the rear end of the bonnet 13 that covers the upper part of the engine 4 is pivoted to the rear upper end of the casing 10, so that the front part of the bonnet is directed toward the rear of the fuselage. A mower that is rotatable and characterized in that a bonnet 13 has a pair of left and right step portions 15, 15 formed in the longitudinal direction of the machine body that can be freely engaged with the handle rod.