JPH06910Y2 - lawn mower - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention provides a cutting blade housing in which a cutting blade is rotatably driven around a longitudinal axis, and the upper part of the cutting blade is provided with the vertical crocodile. A vane body for blasting that is rotationally driven around the axis is arranged, and a cylindrical case that surrounds the vane body is provided along the outer circumference of the rotation trajectory of the vane body, and the wind blasted by the vane body is provided. The present invention relates to a lawn mower in which a blow-out port for blowing air is formed in a side wall portion of the cylindrical case, and a rearward-facing lawn discharge port is provided at a position near the lateral end of the cutting blade housing.

[Conventional technology]

In the above lawnmower, a conventional lawn mower is, for example, Shokai 61-9
As disclosed in Japanese Patent No. 8431, the discharge and supply of the cutting grass from the cutting blade housing to the grass container is performed only from the rearward-facing grass discharging port provided at a position close to the lateral end of the cutting blade housing. I was getting used to it.

[Problems to be solved by the invention]

In the conventional structure described above, the cutting grass conveyed inside the cutting blade housing toward the rearward-facing grass discharge port collides with the lateral vertical wall portion of the cutting blade housing by the air blown from the outlet of the cylindrical case. It was easy to have a trouble of stalling and falling.

The present invention has been made in view of the above circumstances, and it is possible to suppress stall fall of mowing grass in the mowing blade housing, and to make it possible to smoothly feed mowing grass into a grass container. To aim.

[Means for solving problems]

In order to achieve the above-mentioned object, the lawnmower according to the present invention has the above-mentioned configuration, and in the above-mentioned configuration, one of the left and right horizontal vertical wall portions of the cutting blade housing on which the rearward-facing lawn discharge port is located. A lateral grass outlet is provided on the lateral vertical wall portion facing the outlet, and a grass container is connected to the rearward grass outlet and the lateral grass outlet, and the rearward grass outlet and the lateral grass outlet are connected. A guide plate is provided in the cylindrical case for changing the air blowing direction in the cutting blade housing so as to guide the cutting blade to each of the above.

The operation and effect of this characteristic configuration are as follows.

[Action]

That is, the cut grass flying toward the lateral vertical wall portion of the cutting blade housing by the air blown from the outlet is discharged from the cutting blade housing through the lateral grass outlet of the vertical wall portion and supplied to the grass container. Mowing turf is blown to the rear without exiting from the horizontal grass outlet.The grass is cut through the rearward grass outlet so that it does not return to the horizontal vertical wall opposite to the side where the horizontal grass outlet is located. It comes out of the blade housing and is fed into the grass container.

Further, the guide plate corrects the blowing direction of the cut grass in the cutting blade housing so as to direct the cut grass toward the respective grass outlets.

[Effect of device]

Therefore, it is possible to prevent the cut grass from falling in the cutting blade housing as much as possible by the stall fall prevention by the sideways grass discharge opening and the flying back prevention by the backward facing grass discharge opening.
The cut grass is smoothly blown to the rearward-facing grass outlets and the sideways grass discharging openings regardless of the air blown from the outlet, so that the cut grass can be collected efficiently and a good finish with less falling of the cut grass can be obtained. Came to be.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the front and rear wheels (1) and (2) for traveling are provided on the upper part of the cutting blade housing (4) in which the cutting blade (3) is rotatably mounted around the longitudinal axis. A walk-behind lawn mower is constructed by mounting a cutting blade drive engine (5) and attaching a steering handle (6) and a grass container (7) to the rear portion of the housing (4).

As shown in FIG. 2, a rearward-facing turf discharge port (8) is provided at a portion of the cutting blade housing (4) closer to one side of the machine body, and left and right vertical side wall portions of the cutting blade housing (4) are provided. (4A), (4
Two horizontal grass outlets (9a) and (9b) are provided in the horizontal vertical wall portion (4B) on the side where the rearward grass outlet (8) is located in (B), and Grass collection ducts (10) and (11a), (11b) at the outlet (8) and the lateral grass outlets (9a), (9b)
Connect the grass collection container (7) through the grass blade, and pass the grass cut by the cutting blade (3) through the three outlets (8), (9a), (9b)
It is collected in (7). More specifically,
Along with the rotation of the cutting blade (3), a pair of wind blades (3a),
Wind generated due to (3b) and drive shaft (12) of cutting blade (3)
A turbine (1
Generated by the rotation of 3), the wind is supplied from the outlet (15a) of the cover (15) as a cylindrical case that covers the turbine (13), so that the cut grass is the rearward facing grass outlet (8) and the Cutting blade housing through sideways grass outlets (9a), (9b)
It is designed to be discharged from (4) and supplied to the grass collection container (7). That is, the cover (15) is provided so as to surround the turbine (13) along the outer circumference of the rotation trajectory of the turbine (13), and further, the outlet (15a) and the sideways turf discharge port. They are provided so as to face (9a) and (9b).

In addition, (14) shown in FIG. 2 is a grass expulsion guide plate attached to the cover (15) covering the turbine (13), and cuts grass for front and rear direction grass discharge port (8) and sideways grass discharge port. It will guide you to (9a) and (9b).

[Another embodiment]

In the above embodiment, two lateral grass outlets (9a) and (9b) are provided, but one or three or more may be provided.

Further, in the above-mentioned embodiment, all the turf was collected from the backward grass outlet (8) and the lateral grass outlets (9a), (9b) into the same grass collection container (7), but the grass outlet (8), You may make it collect | recover to the grass collection container separately connected with respect to (9a) and (9b).

INDUSTRIAL APPLICABILITY The present invention can be applied not only to a walking type lawnmower but also to a riding type lawnmower.

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the structure of the accompanying drawings by the entry.

[Brief description of drawings]

The drawings show an embodiment of a lawnmower according to the present invention. FIG. 1 is a side view of a walk-behind lawnmower, and FIG. 2 is a cross-sectional plan view of a cutting blade housing. (3) …… Cutting blade, (4) …… Cutting blade housing, (4A), (4B) ……
Horizontal vertical wall, (7) …… grass collection container, (8) …… rearward grass outlet, (9a), (9b) …… horizontal grass outlet, (13) …… feather body,
(14) …… Guide plate, (15) …… Cylindrical case, (15a) …… Blowout port.

Claims (1)

[Scope of utility model registration request] 1. A cutting blade housing (4) internally equipped with a cutting blade (3) in a state of being rotationally driven about a longitudinal axis,
An upper blade of (3) is provided with a blade body (13) for wind generation that is rotationally driven around the axis of the vertical axis, and the blade body (13) is provided along the outer periphery of the rotation trajectory of the blade body (13). A cylindrical case (15) surrounding the (13) is provided, and outlets (15a), (15a) for blowing out the wind generated by the blade body (13) are provided on the side wall of the cylindrical case (15). A lawn mower that is formed and has a rearward-facing lawn discharge port (8) at a position closer to one side of the body of the cutting blade housing (4). In the horizontal vertical wall portion (4B) facing the outlets (15a), (15a) on the side of the rearward facing grass outlet (8) of the side vertical wall portions (4A), (4B). Horizontal grass outlets (9a) and (9b) are provided, and the grass collection container (7) is connected to the rearward grass outlet (8) and the horizontal grass outlets (9a) and (9b), and Vent
The guide plate (14) for changing the blowing direction in the cutting blade housing (4) is provided in the cylindrical shape so as to guide the cutting grass to each of the (8) and the lateral grass discharging ports (9a) and (9b). A lawn mower installed in the case (15).