JPH10117550A - Protective tentacle attachment in motor-driven mower - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a protective tentacle attachment for protecting a rotary blade from obstacles such as stones or the like and preventing the damage of a tree or the like by the rotary blade in a motor-driven mower. SOLUTION: Tentacle bars 2 are disposed with an interval in a double wing shape from the outer periphery front part to rear part of an almost elliptic frame body 1 for which a long diameter L is projected in the front-to-back direction of the rotary blade C and a short diameter S is withdrawn to the left and right of the rotary blade C and an attachment rod 3 where a connection part 3a provided with a height adjustment hole 4 to which an attaching screw 6 is mounted and an angle adjustment hole 5 to which the attaching screw 7 is mounted is bent and formed is suspended at the rear end of the frame body 1. The frame body 1 is positioned in the state of being close to the lower side of the rotary blade C and the connection part 3a is attached to a mower handle P and installed to a height adjustment holder 8 and an angle adjustment holder 9 mounted to the handle P through the respective attaching screws 6 and 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manually operated electric mower comprising a cutter and a handle.

[0002]

2. Description of the Related Art When a mowing operation is carried out by a conventional manually operated electric mower, not only is the rotating blade struck against a stone or other obstacles with caution, not only the rotating blade is damaged, but also the fragments thereof. There is a danger of splashing, while on the other hand they are often damaged by the rotating blades, such as when working on the base of a tree or along a building.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of such a situation of a conventional electric mower, and protects a rotary blade from an obstacle such as a stone while preventing damage to a tree or the like by the rotary blade. To provide a protective tentacle attachment.

[0004]

In order to achieve the above object, the present invention relates to an outer periphery of a substantially elliptical frame body 1 in which a major axis L protrudes in the front-rear direction of a rotary blade C and a minor axis S is retracted right and left in the rotary blade C. The tentacle bars 2 are arranged in a wing-like manner rearward from the front. At the rear end of the frame 1, a connecting portion 3a having a height adjusting hole 4 in which a mounting screw 6 is mounted and an angle adjusting hole 5 in which a mounting screw 7 is mounted.
Is vertically attached. Then, the frame 1 is positioned in proximity to the lower side of the rotary blade C, and the connecting portion 3a is attached to the mower handle P, and a height adjusting holder-8 and an angle adjusting holder mounted on the handle P are provided. This is a protective tentacle attachment configured to be attached to -9 via the mounting screws 6 and 7.

[0005] In the above structure, the frame 1 is a protective tentacle attachment in which at least the cross-sectional shape of the frame 1 is curved.

[0006]

The operation and effect of the present invention will now be described with reference to FIG.
To start mowing while rotating the rotary blade C and swinging it to the left and right. Then, when there is only one side grass without any obstacle, the tentacle bar 2 does not work, and the grass is cut into the rotary blade C without any trouble as a result of the wings being spaced apart from each other in a wing-like manner from the front. Now, when there are obstacles such as hard stones in the grass, the tentacle bar 2 first touches them to notify them of approach, so that direct contact and collision with the rotary blade C can be avoided, and the rotary blade C itself can be avoided. Is prevented from being damaged. When the ground is hard, the substantially elliptical frame 1 and the tentacle bar 2 prevent direct contact between the rotary blade C and the ground, and the rotary blade C itself is similarly protected. On the other hand, when working in the vicinity of a tree or a building, the tentacle action of the tentacle bar 2 prevents damage by the rotary blade C.

The protective tentacle attachment is provided with a height adjustment holder 8 and an angle adjustment holder according to the situation at the work site.
By changing the positions of the mounting screws 6 and 7 in 9, the distance (height) from the rotary blade C and the inclination with respect to the rotary blade C are adjusted.

In a mode in which the cross section of the frame 1 has a shape in which at least the upper portion forms a curve, even when the rotary blade C is bent downward by an external force during work, the contact surface with the frame 1 is formed. It can be kept to a minimum (line contact).

The risk of scattering due to the damage of the rotary blade C is also eliminated, which contributes to safe work.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION In an electric mowing machine, a major axis L protrudes in the front-rear direction of a rotary blade C, and a minor axis S is retracted to the left and right of the rotary blade C. The tentacle rods 2 are arranged at intervals between both wings. The frame 1
At the rear end, a mounting rod 3 having a connecting portion 3a having a height adjusting hole 4 to which a mounting screw 6 is mounted and an angle adjusting hole 5 to which a mounting screw 7 is mounted bent and formed rearward is vertically provided. Then, the frame 1 is positioned below the rotary blade C so as to be close to the rotary blade C, and the connecting portion 3a is attached to the mower handle P, and the elongated hole 8 attached to the handle P is attached.
The height adjusting holder 8 having a and the angle adjusting holder 9 having the multi-stage hole 9a are attached to the height adjusting holder 9 and the angle adjusting holder 9 via the mounting screws 6 and 7, respectively.

[Brief description of the drawings]

FIG. 1 is a perspective view

FIG. 2 is a perspective view of a state attached to a mower.

FIG. 3 is a top and bottom view of the same.

FIG. 4 is a longitudinal sectional front view of FIG. 2A-A line.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame 2 Tentacle rod 3 Mounting rod 3a Connecting part 4 Height adjustment hole 5 Angle adjustment hole 6 Mounting screw 7 Mounting screw 8 Adjustment holder 8a Vertical hole 9 Adjustment holder 9a Multi-step hole C Rotating blade P Handle

Claims (2)

[Claims] 1. A tentacle having a major axis (L) projecting in the front-rear direction of a rotary blade (C) and a minor axis (S) extending rearward from an outer peripheral front of a substantially elliptical frame body (1) to be retracted left and right. A rod (2) is arranged in a pair of wings, and a height adjustment hole (4) with a mounting screw (6) and a mounting screw (7) are mounted on the rear end of the frame (1). A mounting rod (3) having a connecting portion (3a) having a hole (5) formed by bending is vertically provided, and the frame (1) is positioned close to the lower side of the rotary blade (C) to form the connecting portion. (3a) is attached to the mower handle (P), and the height adjusting holder (8) and the angle adjusting holder attached to the handle (P)
A protective tentacle attachment for an electric mower, wherein the protective tentacle is attached to (9) via the mounting screws (6) and (7). 2. The protective tentacle attachment for an electric mower according to claim 1, wherein the cross-sectional shape of the frame body (1) has a curved shape at least in an upper part thereof.