JPS6038340Y2 - Lawn mower blade protection cover - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a lawn mower blade protection cover.

Conventionally, when rotating and removing a circular fixed blade of a lawn mower, it has been troublesome to use gloves or the like to rotate the blade for safety reasons.

Therefore, an object of this invention is to provide a lawn mower blade protection cover that allows the fixed blade to be attached and detached safely and easily.

A lawn mower to which a first embodiment of this invention is applied is shown in FIGS. 1 to 11.

That is, in the figure, 1 is the main body of the lawn mower, 2 is the main body of a caster which is used in an upright position by attaching the grip part 1a of the main body 1 of the lawn mower detachably with a screw 2a, 3 is the handle, 4 is the fixed blade, and 5 is the main body of the caster. The fixed blade 4 is attached to a fixed plate with screws 4a, and the screw hole 7 of the boss 6 is screwed into the fixed shaft (not shown) in the lawn mower main body 1 by rotating the fixed blade 4.

A fixing bolt 8 is screwed into a screw hole at the tip of the fixed shaft and fixed to the fixing plate 5.

A movable blade 9 rests on the fixed blade 4 and engages with a cylindrical drive shaft (not shown) coaxial with the fixed shaft.

10 is a power cord.

With this configuration, when the switch is turned on, the drive shaft rotates, the movable blade 9 rotates on the fixed blade 4, and mowing is performed by the cooperation of the movable blade 9 and the fixed blade 4.

In this case, when mowing a wide area, the caster body 2 is used, and when mowing a narrow area, the grip part 1a of the body 1 is held.

Now, reference numeral 11 denotes a fixed blade protective cover, and the ends of the two semicircular cover bodies 11a and llb, each having a horizontal U-shape in cross section, are attached to a hinge band 12.
The resin elasticity of the hinge band 12 holds it in a circular shape.

Further, a blade holding member 13 made of a soft elastic material is bonded to one or more locations on the inner surface of the cover.

To attach the protective cover 11, as shown in FIG.
It is attached to the fixed blade 4 (FIGS. 8 and 9).

At this time, the inner blade holding member 13 is elastically engaged with the cutting edge of the fixed blade 4.

With this configuration, when the lawn mower is not in use, the fixed blade 4 can be protected by covering it with the protective cover 11, and when the fixed blade 4 is removed, the fixed blade 4 can be removed through the blade holding member 13 by rotating the cover 11. It can be rotated and removed, so the fixed blade 4 can be removed safely.

Furthermore, since the holding member 13 is a soft elastic body, the cover 11 can be attached to any position on the fixed blade 4.

A second embodiment of this invention is shown in FIG.

That is, this lawn mower blade protection cover has a blade holding member 1.
In place of the soft elastic body 3, a protrusion 14 that engages with the blade groove of the fixed blade 4 is integrally formed on the inner surface of the cover 11.

With this configuration, it can be formed at low cost and has the same effects as the first embodiment.

The open end of the cover 11 may be attached with a clasp or the like, or the main body of the semicircular cover may be connected and capped with two clasps.

As described above, the lawn mower blade protection cover of this invention has a blade holding member formed inside, so it is convenient to store, and the fixed blade can be attached and detached easily and safely by grasping the cover. be.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of a lawn mower to which the first embodiment of this invention is applied, Fig. 2 is an exploded perspective view of the blade, Fig. 3 is an enlarged perspective view of the main body, and Fig. 4 is an exploded perspective view of the blade. 5 is a side view of the main body, FIG. 6 is a perspective view of the blade protection cover, FIG. 7 is a bottom view of the main body showing the cover attachment process, and FIG. 8 is a bottom view of the main body showing the cover attached state. , FIG. 9 is a side view thereof, FIG. 10 is a sectional view of the cover, FIG. 11 is an enlarged sectional view of the main part with the cover attached, and FIG. 12 is a sectional view of the main part of the second embodiment with the cover attached. It is a diagram. 11...Cover (cover body), 13...
...Blade holding member (soft elastic body), 14...Protrusion (
blade holding member).

Claims (2)

[Scope of utility model registration request] (1) A cover body that has a horizontal U-shaped cross section and covers a circular blade, and a blade holder that rotates the circular blade by the rotation of the cover body that is formed on the inner surface of this cover body and engages with the circular blade. Lawn mower blade protection cover with parts. (2) A lawn mower blade protection cover according to claim 1, wherein the blade holding member is a soft elastic body. (3) The blade holding member is engaged with a blade groove of the circular blade. A lawn mower blade protection cover according to claim (1) of the utility model registration, which is a protrusion.