JPH0426489Y2 - - Google Patents

Description

[Detailed Description of the Invention] (A) Field of Industrial Application The present invention relates to the structure of a snow shovel 1 for removing clogging that occurs at the blower outlet in a snow blower.

(b) Prior Art Conventionally, heavy snow containing a lot of moisture in snow blowers clogs the lower part of the chute or the blower outlet, stopping the rotation of the blower blades and interrupting snow removal work. There was a problem with it being put away.

While the blower blades had stopped rotating, the operator inserted his hand into the blower outlet to remove the clogged snow in order to remove the clogged snow and make snow removal possible again. Suddenly, the clogged snow disappeared, and the blower blades, which had been slipping and rotating, started rotating, resulting in severe injuries to the operator's hands and fingers.

In order to eliminate such a dangerous situation, there is a known technique in which a snow shovel is attached to a snow blower, and the snow shovel 1 is inserted in place of the operator's hand to remove the clogged snow. -ing

(c) Problems to be solved by the invention The present invention is a further improvement of the technology of the earlier application.

In other words, the conventional snow shovel only serves to push snow that has become clogged in the blower outlet into the blower outlet and remove it; The load on the blower blades has not changed, and the load on the blower has not necessarily been reduced.In the end, the operator has to scoop out the snow pushed inside the blower outlet again by hand. This left open the possibility of a dangerous situation occurring.

The purpose of this invention is to eliminate this problem, and the snow shovel is equipped with a rotating engagement piece that catches the clogged snow at the tip of the snow shovel so that the snow shovel can shovel the clogged snow toward the hand. It is something.

(d) Means for solving the problems The purpose of the present invention is as described above, and next, the configuration for achieving the purpose will be explained.

The tip of a rotating engagement piece 2 is attached to the tip of a snow shovel 1 attached to relieve snow clogging at the blower outlet 16 of a snow blower, with the tip of the rotating engagement piece 2 being pivotally supported by a pivot shaft 4. A resistance surface 2a is provided on the side of the piece 2 opposite to the pivot shaft 4, and the resistance surface 2a is provided with an angle α opening upward.

(E) Embodiments and operations The purpose and structure of the present invention are as described above. Next, the structure and operations of the embodiments shown in the attached drawings will be explained.

FIG. 1 is an overall side view of the snow blower of the present invention, and FIG. 2 is a perspective view showing the operation of removing a clog at the blower outlet 16 using the snow shovel 1.

The snow blower has an engine 3 disposed on a crawler-type traveling device, and a handle and a rotation operating lever 7 for a chute 12 are disposed toward the rear of the engine 3. By rotating the rotary operating lever 7, the worm wheel 6 shown in FIG. 2 rotates to change the direction in which the chute 12 is thrown.

A spiral 13 and a spiral guide plate 11 are arranged at the tip of the fuselage, and the spiral 1
3, the snow is collected at the center of the fuselage and sent into the blower case 10 at the rear.

A blower blade 14 is disposed within the blower case 10, and the blower blade kicks up the snow collected by the spiral 13. The snow thrown up by the blower blades 14 is carried into the chute 12 through the blower discharge port 16, and is thrown away by the chute 12.

The snow shovel 1, which constitutes the main part of the present invention, is always stored in the storage case 15 provided on the side of the blower case 10.
As shown in FIG. 2, clogged snow is likely to occur at the blower outlet 16 and the chute 12 extending therefrom, so if clogged snow occurs in this area, use the snow shovel 1 to remove the clogged snow. It is used to push and shovel snow.

Reference numeral 9 denotes a conventionally provided safety guard, and the construction is such that unless the safety guard 9 is rotated to open the blower discharge port 16, work to clear the clogged snow from the blower outlet 16 cannot be performed. There is. It is also disclosed as a conventional technique that the safety guard 9 is used as a warning device or an engine stop device.

FIG. 3 is a perspective view showing the structure of the snow shovel 1 and the rotary engagement piece 2, FIG. 4 is a side view, and FIG. 5 is a plan view.

The snow shovel 1 is made of wood, synthetic resin, iron pipe, etc., and the material is not limited.

In this embodiment, a pivot shaft 4 is provided at the tip of the snow shovel 1, and the pivot shaft 4 pivotally supports the tip of the rotary engagement piece 2.

As shown in FIG. 4, the rotary engaging piece 2 is tightly stored around the snow shovel 1 when it is stored and when it is inserted into snow that has clogged the blower outlet 16. The arcuate surface 2e is configured in such a manner that the arcuate surface 2e has a diameter such that it comes into close contact with the arcuate surface of the outer periphery of the snow shovel 1.

The tip of the rotary engagement piece 2 is pivotally supported by a pivot shaft 4, while the rear end thereof is provided with a resistance surface 2c. The resistance surface 2c has an angle α that opens upward with respect to the direction of the center line of the snow shovel 1, and because of this angle α, it can be easily inserted into the blower outlet 16 against clogged snow. In this case, the rotary engagement piece 2 is in close contact with the outer periphery of the snow shovel 1, but when it is pulled out, snow engages with the angle α of the resistance surface 2c, and the rotation engagement piece 2 2 around the pivot shaft 4, the rotary engagement piece 2 opens as shown in FIG. 3 and lifts the clogged snow.

Further, at both ends of the rotary engagement piece 2, there are protruding ears 2d.
The protruding ear portion 2d widens the area that is engaged when lifting clogged snow.

FIG. 6 is a side view showing another embodiment of the rotating engagement piece 2, FIG. 7 is a side sectional view of the pivot shaft 4, FIG. 8 is a plan view, and FIG. 9 is a rotating FIG. 10 is a side view of the engaging piece 2 in a retracted state, FIG. 10 is a side view of the rotary engaging piece 2 used to shovel out clogged snow, and FIG. 11 is a side view of the engaging piece 2 with the rotating engaging piece 2 protruding downward. Side view of the state in which it is used like a scoop,
FIG. 12 shows the rotary engagement piece 2 fixed in a protruding state,
It is a side view of the state in which it is used in the shape of a hoe.

In the embodiments shown in FIGS. 6 to 12, the snow shovel 1 can be used either in the shape of a scoop or in the shape of a hoe.

That is, an engaging protrusion 1b is provided on the side of the snow shovel 1 for when it is shaped like a shovel, and an insertion hole 1c for a locking pin 20 is provided so that it can be used in the shape of a hoe. Similarly, a pin locking notch 2f is provided in the rotary engagement piece 2 at a position that matches the insertion hole 1c.

Further, the pivot shaft 4 is constantly pushed upward by the biasing spring 8 from below within the elongated hole 1a.

When the pivot shaft 4 is pushed up by the biasing spring 8, the same effect as explained in FIGS. 3 to 5 is performed. In this embodiment, the protruding ear portion 2a also serves as the resistance surface. In other words, an angle α is formed on the resistance surface 2a, and due to the angle α provided on the resistance surface 2a, when the snow shovel 1 is pulled out, the rotating engagement piece 2
It protrudes in a scraped state.

Then, make it into a scoop shape as shown in Figure 11,
When using the snow shovel 1, first rotate the pivot shaft 4.
By pushing in and lowering the pivot shaft 4 to the lower end in the elongated hole 1a, the rotating engagement piece 2 can rotate upward without interfering with the tip of the snow shovel 1, and the snow shovel 1 It can be rotated up to an extension of .

In this state, when a shovel operation is performed with the snow shovel 1, the rotating engagement piece 2 comes into contact with the engagement protrusion 1b and continues to maintain the shovel-like state.

If you want to restore it from the scoop-like state,
The pivot shaft 4 is pushed in again to return the rotary engagement piece 2 to a state where it does not interfere with the tip of the snow shovel 1.

In addition, when used as a hoe shape as shown in FIG. 12, the locking notch 2f of the rotary engagement piece 2,
By aligning the insertion hole 1c provided in the snow shovel 1 and inserting the locking pin 20, the rotary engagement piece 2 maintains its protruding state. Ice-like clogged snow adhering to the inside of the chute 12 and the inner wall of the blower outlet 16 can be broken and dropped.

(f) Effects of the invention Since the invention is constructed as described above, it has the following effects.

First, the rotating engagement piece 2 is provided at the tip of the snow shovel 1, and the rotating engagement piece 2 is in a retracted state in close contact with the outer periphery of the snow shovel 1 when the snow shovel 1 is inserted. It does not become an obstacle to insertion and can be easily inserted into the snow that has clogged the blower outlet 16. When pulling out the inserted snow shovel 1, the resistance surface 2a of the rotating engagement piece 2
The parts 2c and 2c interfere with the clogged snow, and the rotary engagement piece 2 tends to open around the pivot shaft 4, and the rotary engagement piece 2 in the open state catches the clogged snow. It can then be carried outside.

Second, in addition to the pushing action of the clogged snow using only the snow shovel 1 as in the past, the rotary engagement piece 2
By scraping out the clogged snow,
The load on the blower blade 14 when it rotates next time can be reduced.

Thirdly, there is no longer a need for the operator to insert his/her hand into the blower case 10 even when removing clogged snow that has been pushed into the blower case 10.

[Brief explanation of the drawing]

FIG. 1 is an overall side view of the snow blower of the present invention, FIG. 2 is a perspective view of the blower discharge port 16 being cleared of blockage using the snow shovel 1, and FIG. FIG. 4 is a side view, FIG. 5 is a plan view, FIG. 6 is a side view showing another embodiment of the rotary engagement piece 2, and FIG. 8 is a plan view of the support shaft 4, FIG. 9 is a side view of the rotating engagement piece 2 in a retracted state, and FIG. A side view when used in a scraped state,
Fig. 11 is a side view of the rotary engagement piece 2 protruding downward and used in a scoop shape, and Fig. 12 is a side view of the rotary engagement piece 2 being fixed in the protruding state and used as a spade shape. It is a side view of a state. 1... Snow shovel, 1a... Long hole, 1b... Engaging projection, 1c... Insertion hole, 2... Rotating engagement piece, 2
a, 2c...Resistance surface, 2d...Protruding ear portion, 2e...
...Circular surface, 2f...Lock notch, 4...Pivot shaft,
12...Chute, 16...Blower discharge port.

Claims (1)

[Scope of utility model registration request] The tip of a rotating engagement piece 2 is attached to the tip of a snow shovel 1 attached to relieve snow clogging at the blower outlet 16 of a snow blower, with the tip of the rotating engagement piece 2 being pivotally supported by a pivot shaft 4. A jam release device for a snow blower, characterized in that a resistance surface 2a is provided on the side opposite to the pivot shaft 4 of the piece 2, and the resistance surface 2a has an upwardly opened angle α.