JPH0748020Y2 - Edger safety cover - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a safety cover for an edger that trims the edges of turf and the like, and more specifically, it prevents the scattered objects rebounding from the wheels from being scattered toward the operator. The present invention relates to a safety cover for an edger.

[Conventional technology]

FIG. 3 shows a conventional edger 50. In FIG. 3, parts corresponding to the embodiments of the present invention described later are designated by the same reference numerals, and description thereof will be omitted, and only main points will be described. The semicircular cover body 28 is a rigid body, covers the rotary blade 22 from the upper side to the rear side without contacting the ground 44, and scatters such as sand 52 that is blown backward as the rotary blade 22 rotates. Collisions are prevented, and those scattered objects are prevented from scattering toward the operator who is operating the edger 50. Wheel 34
Is rotatably attached to the outer surface of the cover body 28 and rolls on the ground 44 while supporting the weight of the edger 50, whereby the edger 50 rotates the rotary blade 22 about the horizontal axis, Move forward and mow the edge of grass etc. with the rotary blade 22.
Sand 52 that is blown rearward from the rotary blade 22 almost along the ground 44
Does not collide with the cover body 28, but is scattered rearward through a gap between the lower edge of the cover body 28 and the ground surface 44.

[Problems to be solved by the device]

In the conventional safety cover of the edger 50, some of the flying objects that are blown back by the cover body 28 may bounce off the wheels 34 and then fly toward the operator.

In addition, Japanese Utility Model Laid-Open No. 1-99108 discloses a safety cover for a brush cutter, but unlike the edger, the brush cutter has no wheels and prevents the scattered objects bounced off from the wheels from scattering toward the operator. The structure is not disclosed at all.

An object of the present invention is to provide a safety cover for an edger, which can prevent the flying objects bounced off from the wheels from flying backward.

[Means for Solving the Problems]

The invention will be described using the reference numerals of the drawings corresponding to the embodiments.

An edger (10), which is a premise of the present invention, is provided on a front end side of an outer tube (14) and covers a rotary blade (22) which rotates around a horizontal axis and a rear side of the rotary blade (22). It has a cover body (28) and wheels (34) rotatably attached to the lower part of the cover body (28) and traveling on the ground (44). In the safety cover of the edger (10) of the present invention, the cover body (28) is attached to the flexible additional cover (40) having a width exceeding the entire width of the cover body (28) and the wheel (34).
A gear device (18) that is hung vertically from the ground and has its lower edge slidably contacting the ground (44) and rotationally drives the rotary blade (22).
It is configured integrally with a mounting bracket (30) that is tightened by a bolt (32) at the tip of the, and loosens the bolt (32) to change the circumferential position of the cover body (28) with respect to the gear device (18). By doing so, the distance between the gear device (18) and the wheel (34) in the front-rear direction and the up-down direction can be changed.

[Action]

Some of the scattered material that was blown backward by the rotary blade (22)
It collides with the wheel (34) and bounces back. The flexible additional cover (40) slides on the ground (44) while bending the lower edge portion by flexibility, and further, the wheel (34) and the cover body (28).
Cover the rear side of. As a result, the scattered matter that bounces off the wheels (34) and tries to be scattered rearward collides with the flexible additional cover (40) and is prevented from scattering to the worker.

〔Example〕

The invention will be described below with reference to the embodiments shown in FIGS. 1 and 2.

FIG. 1 is a side view of the edger 10, and FIG. 2 is a view showing the front end portion of the edger 10 from the II direction in FIG. Engine part 12
Is attached to the rear end portion of the outer pipe 14, and the handle 16 is attached to a portion of the outer pipe 14 near the engine portion 12 and is gripped by an operator. The gear device 18 is connected to the front end portion of the outer pipe 14 with the axial direction being horizontal, and the rotational power of the engine portion 12 is transmitted to the gear device 18 via a transmission shaft (not shown) in the outer pipe 14. To be done. A boss 20, a rotary blade 22 and a boss 24 are fitted to the output shaft (not shown) of the gear device 18 in this order from the side closer to the gear device 18, and a bolt 26 is attached to the boss 24, the rotary blade 22 and the boss 24.
After being inserted into 20, the screw device is screwed to the output shaft of the gear device 18, and they are integrally rotatably fastened to the output shaft. The rigid and semi-circular cover main body 28 is composed of a semi-circular disk portion and an arcuate curved plate, and is applied together with the mounting bracket 30 to the tip of the gear device 18 at the center of the circle and tightened with the bolt 32.
It is fixed to the gear device 18. The cover body 28 covers a half portion of the rotary blade 22 on the gear device 18 side, and covers a diagonally upper rear side of the rotary blade 22. The wheel 34 is rotatably fitted to a support shaft (not shown) protruding laterally from the lower end of the cover body 28, and the boss 36 is fitted to the support shaft on the outside of the wheel 34. The pin 38 is diametrically inserted and fastened to the support shaft to prevent the wheel 34 from coming off the support shaft. The flexible additional cover 40 has a width that includes the cover body 28 and the wheels 34 inside with respect to the axial direction of the gear device 18, and is detachably fixed to the rear end portion of the cover body 28 at the upper end portion by a bolt 42, A lower edge portion of the flexible additional cover 40 that hangs down from the cover body 28 is bent rearward by contact with the ground surface 44.

The operation of the embodiment will be described.

Loosen the bolts 32 to cover the gear device 18 in the circumferential direction of the cover body 28.
By changing the position of, the distance between the gear device 18 and the wheel 34 in the front-rear direction and the up-down direction is changed, whereby the inclination angle α of the outer pipe 14 is adjusted.

The wheels 34 support the weight of the edger 10 as well as the ground.
Rolls 44, which causes the edger 10 to move forward. The flexible additional cover 40 causes the lower edge portion to bend rearward and slides on the ground 44. The rotary blade 22 rotates around a horizontal axis in the left-right direction by the rotational power from the engine unit 12, and trims the edge of grass or the like. With the rotation of the rotary blade 22, grass mowed on the rotary blade 22,
The sand that came into contact with the rotary blade 22 is blown back, but the rotary blade
Scattered material that is thrown diagonally above 22 is the cover body 28
It collides with the arc-shaped curved plate part and is prevented from scattering backward.

The flexible additional cover 40 extends between the lower edge of the cover body 28 and the ground surface 44 and on the rear side of the wheel 34. Scattered objects and wheels 34 that scatter rearward below the lower edge of the cover body 28.
The scattered matter that bounces back to and scatters rearward collides with the flexible additional cover 40, and is prevented from scattering over the flexible additional cover 40 and rearward.

In the illustrated embodiment, the flexible additional cover 40 covers not only the rear of the wheel 34 but also the rear area of the cover main body 28 in the width direction, but scattered matter scattered from the rotary blade 22 bounces off the wheel 34. In order to prevent scattering toward the rear worker, the flexible additional cover 40 may be arranged such that the rear of the cover body 28 is omitted in the width direction and only the rear range of the wheels 34 is covered. It is enough.

[Effect of device]

In this invention, the flexible additional cover hangs down from the cover body and covers the rear side of the wheel until its lower edge contacts the ground, so that the flexible additional cover is blown off from the rotary blade and bounces back to the wheel. The scattered matter that is blown into the vehicle collides with this flexible additional cover, which can reliably prevent it from being scattered toward the operator, and this flexible additional cover is supported on the ground, thus ensuring stability. The work can be performed, and by changing the position of the cover main body in the circumferential direction of the gear device, the distance between the gear device and the wheels in the front-back and up-down directions can be changed to adjust the inclination angle of the outer tube. The effect is obtained.

[Brief description of drawings]

1 and 2 relate to an embodiment of the present invention. FIG. 1 is a side view of an edger, FIG. 2 is a view showing a front end portion of the edger from a direction II in FIG. 1, and FIG. 3 is a conventional edger. FIG. 10 …… Edger, 14 …… Outer tube, 22 …… Rotating blade, 28 …… Cover body, 34 …… Wheels, 40 …… Flexible additional cover, 44…
…Ground.

Claims (1)

[Scope of utility model registration request] 1. A rotary blade (22) arranged on the front end side of the outer tube (14) and rotating around a horizontal axis, and a cover body (28) for covering the rear side of the rotary blade (22). This cover body (2
In an edger (10) having wheels (34) rotatably attached to the lower part of 8) and traveling on the ground (44),
A flexible additional cover (40) is hung from the cover body (28), and the flexible additional cover (40) has a width exceeding the entire width of the cover body (28) and the wheel (34). The edge is slid on the ground (44) and the rotary blade (22)
Bolts (32) on the tip of the gear device (18)
The gear device (18) is formed integrally with the mounting bracket (30) that is tightened by
A safety cover for an edger in which the front-rear and up-down distances between the gear device (18) and the wheels (34) can be changed by changing the circumferential position of the cover body (28) with respect to the.