JPH0426492Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

The present invention relates to a safety mechanism for a snow blower, and more particularly to a safety mechanism that makes it impossible to start the engine when the auger clutch lever or travel clutch lever is in the "on" position.

[Conventional technology]

As a conventional snow blower, there is a snow blower having an auger at the front of a traveling vehicle body, and an operating section having an auger clutch lever or a travel clutch lever and a key switch or a brake lever at the rear.

[Problem that the invention attempts to solve]

In the snow blower, when the engine is started with all parts of the machine stopped and the auger clutch lever or travel clutch lever in the "on" state,
There is a risk that the auger may suddenly rotate or the aircraft may suddenly move. To prevent this risk, use a limit switch, etc. when the auger clutch lever or travel clutch lever is in the "on" position. The engine was electrically prevented from starting. This not only complicates the configuration and increases costs, but also poses problems such as the possibility that the engine will start if the limit switch fails for some reason.

[Means to solve the problem]

The present invention was developed in consideration of the above circumstances, and the key switch or the brake lever is disposed close to the "on" side position of the "on" and "off" operation range of the auger clutch lever or traveling clutch lever. This is characterized in that the engine cannot be started when the auger clutch lever or travel clutch lever is in the "on" position.

[Effect]

With the above-described configuration, the snow blower of the present invention ensures that when the auger clutch lever or travel clutch lever is in the "on" position, the key switch or choke lever cannot be operated and the engine cannot be started. Moreover, since it does not use limit switches, etc., it does not cause malfunctions, and
Production costs will also be lower.

【Example】

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing the main parts of the present invention, and FIG. 2 is a rear view of the same. Reference numeral 1 designates a running vehicle body having a running device (not shown) and equipped with an engine.
This traveling vehicle body 1 includes an auger (not shown),
A snow removal section including a blower, snow removal chute, etc. is provided, and an operation section 2 is provided at the rear. The operation section 2 is provided with a key switch 4 for starting the engine on the front plate 3, and an auger clutch lever 6 on the operation panel 5 behind the key switch 4 rotates back and forth around a fulcrum 6a to engage the auger clutch. It is designed to be turned on and off. When the auger clutch lever 6 is rotated forward and brought close to the key switch 4, it becomes "on", and at this time, the key switch 4 cannot be rotated, and the auger clutch lever 6 is rotated rearward. When turned off, the key switch 4 can be freely rotated to start the engine. Reference numeral 7 is a steering handle. Note that the key switch 4 may be used as an engine choke lever, and the auger clutch lever may be used as a traveling clutch lever. In other words, when the operating lever of the main drive section of the snow blower is in the "on" state, the key switch 4 is used as the engine starting section. It is sufficient if the configuration is such that it cannot be operated. In a snow blower having such a configuration, the auger clutch lever 6 is turned to the "off" position as shown by the solid line in FIG.
Set the machine to the "on" position as shown by the temporary line and perform snow removal work while moving the machine. If the auger clutch lever 6 is in the "on" position when the snow blower engine is stopped and snow removal is not being performed, the key switch 4 will not be activated when the auger clutch lever 6 is in the "on" position even if you try to start the engine.
The key switch 4 cannot be rotated because the keys are close to each other. Therefore, inadvertent rotation of the auger due to engine startup and accidents caused by this can be prevented.

[Effect of the idea]

As explained above, according to the safety mechanism of the snow blower of the present invention, when the engine is stopped and the auger clutch lever or travel clutch lever is in the "on" state, the key switch or the brake lever is operated. If you try to start the engine, the auger clutch lever or travel clutch lever will get in the way and you will not be able to start the engine, which may cause the auger to rotate inadvertently or the snow blower to run inadvertently. can be prevented. Furthermore, it does not require any extra parts such as a limit switch, has a simple structure, and is free from failure.

[Brief explanation of the drawing]

FIG. 1 is a side view of the main parts of the present invention, and FIG. 2 is a rear view of the same. DESCRIPTION OF SYMBOLS 1... Traveling vehicle body, 2... Operation unit, 3... Front plate, 4... Key switch, 5... Operation panel, 6
... Auger clutch lever, 6a... Fulcrum, 7...
...Steering handle.

Claims (1)

[Scope of Claim for Utility Model Registration] A snow blower having a snow removal section having an auger at the front of the traveling vehicle body and an operating section having an auger clutch lever or a travel clutch lever and a key switch or a choke lever at the rear, the auger clutch lever. Alternatively, the key switch or brake lever may be disposed close to the "on" side position of the travel clutch lever's "on" or "off" operating range, so that when the auger clutch lever or travel clutch lever is in the "on" position, the engine is turned on. A safety mechanism for a snow blower characterized by making it impossible to start.