JPH108431A - Blower stop device of snow removing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the handling structure of a harness, and to improve the service life by mounting a sensor for detecting the non-attached condition of a snow shoveling rod on a vehicle body part excluding a turning part of a chute for throwing snow, and stopping a blower by the detection signal of the sensor. SOLUTION: When a snow shoveling rod 13 is pushed into clamping members 14, 14 and attached thereto, a contact probe (a) of a sensor 10 is pushed by a periphery of the snow shoveling rod 13, and a switch (b) is operated to the side to detect the presence of the snow shoveling rod 13, and keeps the rod in a condition to allow the operation of a prime mover. A chute 8 is turned by a worm gear device 9 in shoveling snow, and the chute 8 is turned irrespective of a harness 10 even when the direction of throwing snow from the chute tip is changed. When the snow shoveling rod 13 is drawn, it is operated to the side to detect absence of the contact probe (a), and a blower 7 is in a non- driven condition by keeping the condition to stop the operation of the prime mover. Stuffed snow is removed by inserting the snow shoveling rod 13 into an outlet pipe 7a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blower stop device for a snow blower, which can ensure the safety of an operator when removing a snow clog in the snow blower.

[0002]

2. Description of the Related Art As a snow removing machine which can be relatively easily used, there is a snow removing machine as shown in FIG. 2, and the outline thereof is as follows.

That is, 1 is a running section, 2 is a motor section, 3 is a snow removing section, and 4 is a control section. At this time, the snow removing section 3 includes an auger 5, a snow removing frame 6, a blower 7, and a chute 8.

The chute 8 has a gutter shape with an open front surface, and extends obliquely upward from the outlet pipe 7a of the blower 7 so as to be pivotable about a vertical axis.

At the base of the chute 8, a chute 8
There is provided a worm gear device 9 for turning the.

Reference numeral 10 denotes a sensor fixed to the chute 8, and reference numeral 11 denotes a cover mounted for operating the sensor 10, which can swing in the direction of arrow f2 around the lower end.

Reference numeral 12 denotes a harness, which electrically couples a main part of a motor stopping mechanism in the motor unit 2 with the sensor 10.

In use, the power generated by the prime mover in the prime mover unit 2 is transmitted to the traveling unit 1, the auger 5 and the blower 7. As a result, the auger 5 scrapes off the snow on the road or the like during the course of the fuselage. The snow is guided to flow out in the specific direction f1.

To change the outflow direction f1, the worm gear device 9 is operated to turn the chute 8 around the vertical axis.

[0010] Since this turning can be performed about 100 degrees to the left and right sides in consideration of the convenience of use, the operator appropriately adjusts the discharge direction within this range according to the surrounding situation.

During such use, snow clogging may occur in the vicinity of the outlet pipe 7a of the blower 7 due to the snow quality and use conditions. In such a case, the running unit 1 is stopped and the snow removal frame is used. It is necessary to remove the dedicated snow scraper 13 attached to the back surface of the chute 6 or the like, and insert the same into the outlet pipe 7a from the opening at the lower front of the chute 8.

However, since the cover body 11 hinders the insertion of the snow scraper 13, the operator cannot avoid the cover body 11 inevitably.
Is released in the direction of arrow f2, whereby the sensor 10 detects the absence of the cover body 11, in connection with which the stopping mechanism of the motor stops the motor and the blower 7 is stopped.

Accordingly, the worker always inserts the snow scraper rod 13 into the outlet pipe 7a while the blower 7 is not operated, and the rod 13 violently collides with the rotating blades in the blower 7. Is avoided.

[0014]

In the above-described conventional snow removing machine, the sensor 10 is provided on the wall surface of the chute 8 which is frequently turned and is often turned greatly. In addition to complicated handling of the harness 12 for connecting the main part and the sensor 10, there is a problem that the fatigue of the harness is promoted and its life is shortened.

It is an object of the present invention to provide a blower stopping device for a snow blower which can solve the above-mentioned problems.

[0016]

In order to achieve the above object, the present invention is based on the premise that a snow plow is provided with a snow scraper for removing snow clogging in a blower portion, and the snow scraper is not engaged with the snow remover. A sensor for detecting the state is attached to the body of the snow throwing chute except for the turning section, and the blower is stopped in accordance with the detection signal of the sensor.

Specifically, a sensor is provided at the same part as the main part of the blower stopping means.

[0018] Further, the motor for driving the blower is stopped in association with the detection signal of the sensor.

The snow scraper and the sensor are mounted on the back of the snow removal frame in front of the blower, and the contact is brought into contact with the sensor with the snow scraper, and the contact is turned on and off by a predetermined displacement of the contact. And a switch,
The detection signal is generated by the operation of the switch.

[0020]

FIG. 1 shows a main part of a snow blower according to the present invention, and an embodiment of the present invention will be described below with reference to this drawing. Portions not mentioned have the same configuration as the conventional one, and the same reference numerals are used for the same parts as the conventional one.

In the present invention, the snow scraper 13 is attached to the back surface of the snow removal frame 6, and is specifically configured as follows.

That is, a pair of U-shaped bent elastic members 14, 14 are fixed to the back of the snow removing frame 6 by positioning them on the left and right sides.
4, the snow scraper 13 is resiliently pushed in from the upper opening.

Then, the snow scraper 1 thus attached is attached.
Sensor 10 for detecting the presence or absence of
At a position near the snow scraper 13.

At this time, the sensor 10 has a contact a to be brought into contact with the snow scraper bar 13 and a switch b to be turned on and off by a certain displacement of the contact a.

On the other hand, the motor unit 2 which is the same as the snow removal frame 6
Alternatively, the control section 4 is provided with blower stopping means for stopping the blower 7.

This blower stopping means is provided by the motor and the blower 7.
Although it may be possible to cut off the middle of the power transmission path reaching the motor, here, a motor stop device generally provided in the snow blower is substituted.

The harness 12 extended from the sensor 10 is electrically connected to a motor stopping device through the snow removing frame 6 and the casing of the blower 7, and the harness 12 is fixed by a stopper 15 at this time. The conventional cover 11 is removed.

Next, an example of use of the snow blower thus configured will be described. At the time of the snow-plowing operation, the snow-plow 13 is pushed into the clamp members 14 to be engaged. As a result, the contact a of the sensor 10 is pressed against the peripheral surface of the snow-plow bar 13, and the switch b is operated to detect the presence of the snow-plow rod 13. In this connection, the motor stop device permits the operation of the motor. Is kept in a state where

In this state, the prime mover is started to perform the snow-plowing operation in the same manner as in the prior art. During the snow-plowing operation, the worm gear device 9 is actuated as necessary to rotate the chute 8 and throw it from its tip. Change the direction of the snow. At this time, the turning of the chute 8 is performed completely independently of the harness 10, and the harness 12 is not deformed.

The height of the auger 5 and the snow removing frame 6 with respect to the traveling section 1 is occasionally changed and adjusted in relation to the snow amount.
The harness 12 is also displaced in the same manner as the steering unit 4 and the harness 12 fixed thereto, so that the harness 12 is also not bent at all.

During the scraping of snow, snow clogging may occur in the outlet pipe 7a of the blower 7. At this time, it is possible to forget to stop the operation of the blower 7 and try to remove it.

However, since the worker always needs the snow scraper 13 in this process, the worker removes the snow scraper 13 from the clamp member 1.
4 and 14 are withdrawn against its elasticity.

As a result, the contact a is not pushed by the snow scraper 13 and is displaced outward by the elastic force of the spring or the like.
The switch b is actuated on the side which detects the absence of the scraper 13 and in connection with this the motor stop is kept in a state in which the operation of the motor is stopped. Therefore, the prime mover stops, and the blower 7 enters a non-driving state.

Therefore, even if the operator does not perform any conscious operation, the snow scraper 13 is inserted into the outlet pipe 7a under the non-rotating state of the blades of the blower 7 to remove the snow clogging. It is.

Further, even if another person mistakenly starts the operation of the prime mover during the removal, the prime mover is kept stopped.

After removing the snow clogging in this way, the operator again pushes the snow scraper rod 13 into the clamp members 14 and 14 to be engaged. As a result, the sensor 10 operates in the same manner as described above, and the prime mover stopping device is maintained in a state allowing the prime mover to operate. Under this state, the worker starts the prime mover again and continues snow scraping.

[0037]

According to the present invention configured as described above,
In addition to being able to safely remove snow clogging at the blower outlet tube, the harness can be made unrelated to the turning of the chute, thus simplifying the harness routing structure and reducing the life of the harness. Can be lengthened.

According to the second aspect of the present invention, the harness is not bent at all by any ordinary maneuvering operation as well as when the chute is turned, and the life of the harness is extremely long.

According to the third aspect, the rotational drive of the blades of the blower can be reliably stopped, resulting in excellent safety.

According to the fourth aspect, the snow scraper and the sensor do not hinder the operation, and the sensor is less likely to malfunction due to scattering of snow and the like.

[Brief description of the drawings]

FIG. 1 is a diagram showing a main part of a snow blower according to an embodiment of the present invention.

FIG. 2 is a diagram showing a conventional snow plow.

[Explanation of symbols]

 6 Snow removal frame 7 Blower 8 Chute 10 Sensor 13 Snow scraper a Contact b Switch

Claims (4)

[Claims] 1. A snow removal machine to which a snow scraper for removing a snow clog in a blower portion is engaged, wherein a sensor for detecting a non-engagement state of the snow scraper is operated by turning a snow chute. A blower stopping device for a snow blower, wherein the blower is mounted on a body portion excluding a part and a blower is stopped in response to a detection signal of a sensor. 2. A blower stopping device for a snow blower according to claim 1, wherein a sensor is provided in a main part and a body part of the blower stopping means. 3. The blower stopping device for a snow blower according to claim 1, wherein the motor for driving the blower is stopped in response to a detection signal of the sensor. 4. A snow scraper and a sensor are mounted on the rear side of a snow removal frame in front of a blower, and the contact is brought into contact with the snow scraper by a sensor. The blower stopping device for a snow blower according to claim 1, further comprising a switch, wherein a detection signal is generated by an operation of the switch.