JPH0417617Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Technical Field> The present invention relates to a device for capturing tire chains and the like of a snowplow vehicle for capturing foreign objects such as tire chains buried in snow during snow removal.

<Prior Art> A conventional trapping device such as a tire chain for a snowplow is disclosed in Japanese Utility Model Application Publication No. 183909/1983. As shown in FIG. 6, a spiral auger blade 2 is rotatably attached to the front part of the vehicle body 1 via a main shaft 3, and a plurality of chips 5 are arranged on the outer peripheral surface 4A of the auger blade 2. A capture claw 6 for capturing the tire chain 7 is attached to the center of the inner surface 2A of the auger blade 2.

However, in this configuration, since the outer circumferential tooth surface of the auger blade 2 hits the road surface, it seems that the trapping effect is small if it is only provided at the center of the inner surface of the blade.

Further, as other examples, there are those shown in Japanese Utility Model Application Publications No. 58-194217 and Japanese Utility Model Application Publication No. 58-194218. this is,
As shown in FIGS. 7 and 8, a capture claw 6 is attached to the inner surface of the chip 5 on the outer peripheral surface 4A of the auger blade 2, and the tip of the capture claw 6 faces the rotation direction D of the auger blade 2. It is installed at an angle to the inner surface of the auger blade.

However, since the direction of the claw 6 is tangential to the outer peripheral edge 4B of the auger blade as shown in FIG. 8, snow S tends to accumulate between the inner surface 5A of the tip 5 and the capture claw 6 when the blade is driven. There was a drawback in that this snow S was swept forward (in the direction of travel) as shown in Figure 9.

<Purpose> In view of the above-mentioned drawbacks, the present invention aims to provide a trapping device such as a tire chain for a snowplow, which has a simple structure, can prevent snow from being shoveled in the direction of movement of the vehicle during snow removal, and has a great trapping effect. purpose.

<Example> Hereinafter, an example of a trapping device such as a tire chain for a snowplow vehicle according to the present invention will be described with reference to FIGS. 1 and 5.

Fig. 1 is a partially omitted front view of a trapping device showing an embodiment of the present invention, Fig. 2 is a side view thereof, Fig. 3 is an enlarged plan view of the main part thereof, and Fig. 4 is an enlarged view of the main part thereof. The side view and FIG. 5 are also front views of the snow removal device. In these figures, components having the same functions as those of the conventional configuration shown in FIGS. 6 to 9 are designated by the same reference numerals.

As shown in the figure, in the present invention, a spiral auger blade 2 is rotatably attached to the front part of the vehicle body 1 via a main shaft 3, and an outer circumferential surface 4A of the auger blade 2 is attached.
In a snowplow vehicle, a plurality of chips 5 are arranged between the plurality of chips 5, and a capture claw 8 for capturing foreign objects such as a tire chain 7 is arranged between the plurality of chips 5.
The tip 8a faces the rotation direction of the auger blade 2, is bent toward the center of the vehicle body, and is bent toward the main shaft 3, and is connected to the tip 8a of the capture claw 8 and the inner periphery of the auger blade 2. A holding space 9 for holding foreign objects such as the tire chain 7 is formed between the surface 2A and the holding space 9.

The capture claw 8 is a rod-shaped member that is bent and consists of a tip end 8A and a base end 8B, each having approximately half the length. The base end portion 8B is arranged parallel to the tooth portion 2C that branches the outer circumferential surface 4A and the inner surface 2A, and the base end portion 8B is welded or the like on the outer circumferential surface 4A and closer to the inner surface 2A. It is fixed.
Further, the tip 8a of the capture claw 8 is bent at an angle of 30 degrees in plan view with respect to the tooth portion 2C, as shown by θ1 in FIG. 3, and further, as shown by θ2 in FIG.
It is bent at an angle of 30 degrees in side view with respect to the tangential direction F of the tooth portion 2C.

The auger blades 2 are C-shaped members arranged symmetrically so as to be able to shovel snow toward the center of the vehicle body. An example of a spanning rod is fixed between the outer circumferential surface 3A of the main shaft 3 and the inner surface 2A of the auger blade 2. The chip 5 is formed into a small plate shape and is fixed to the outer peripheral surface 4A by welding or the like.

At the center of the front part of the vehicle body 1 and at the auger blade 2
A blower case 12 for housing and rotating the snow suction blower 11 is provided on the rear side, and a snow suction port 13 is formed on the front plate of the blower case 12. It communicates with a snow throwing chute 14 arranged therein.

Next, to explain the operation, the snow shoveled inside the car body 1 by the rotation of the auger blade 2 in the direction of the arrow in FIGS. 2 and 4 is sent to the chute 14 by the suction force caused by the rotation of the blower 11. The snow is thrown at a position outside the vehicle body 1 where the vehicle cannot be prevented from moving forward.

Further, the capture claw 8 in the present invention has its tip 8a.
faces the direction of rotation of the auger blade 2, and the main shaft 3
Since it is bent toward the center of the car body 1, the tip 8A of the capture claw 8 and the inner surface 2A of the auger blade 2 are bent even when the auger blade 2 rotates to shovel snow. It is difficult for snow to accumulate in between. Therefore, the snow that has once been shoveled into the interior of the vehicle body 1 is prevented from being shoveled out again in the direction of travel of the vehicle body 1.

In addition, since the capture claw 8 bends a rod-shaped object,
It is easy to bend the rod and attach it to the auger blade, and the manufacturing cost is lower than when it is integrally formed with the chip as shown in the conventional construction. Furthermore, since the bending direction of the tip 8a of the capture claw 8 of the present invention is the above-mentioned direction, the tire chain 7
This makes it easier to catch foreign objects such as, and prevents the tire chain 7 from getting caught in the blower 11.
Damage to the blower 11 can be prevented.

It should be noted that the present invention is not limited to the above embodiments, and it goes without saying that many modifications and changes can be made to the above embodiments within the scope of the present invention.

For example, if an intrusion prevention ring is provided at the suction port of the blower case to prevent foreign objects such as tire chains from entering the blower case, safety against damage to the blower will be increased.

<Effects> As is clear from the above explanation, the present invention has a spiral auger blade rotatably attached to the front part of the vehicle body via the main shaft, and a plurality of chips arranged on the outer peripheral surface of the auger blade. In the snowplow, a capture claw for capturing foreign objects such as tire chains is arranged between the plurality of chips, and the tip of the capture claw faces in the direction of rotation of the auger blade and toward the center of the vehicle body. The auger blade is bent and bent toward the main shaft, and a holding space for holding a foreign object such as the tire chain is formed between the tip of the capture claw and the inner surface of the auger blade. This invention relates to a trapping device such as a tire chain for a snowplow.

Therefore, according to the present invention, the bending direction of the tip of the capture claw is such that it is difficult for snow to accumulate between it and the inner surface of the auger blade, which prevents snow from moving in the direction of movement of the vehicle during snow removal. This has the excellent effect of providing a trapping device with a simple structure that can prevent scraping and have a great trapping effect.

[Brief explanation of drawings]

Fig. 1 is a partially omitted front view of a trapping device showing an embodiment of the present invention, Fig. 2 is a side view thereof, Fig. 3 is an enlarged side view of the main part thereof, and Fig. 4 is an enlarged view of the main part thereof. A side view, FIG. 5 is a front view of the vehicle body, and FIG. 6 is a side view of a conventional trapping device.
Fig. 7 is an enlarged plan view of the main part of a trapping device showing another conventional example, Fig. 8 is an enlarged side view of the main part, and Fig. 9
The figure is also a side view showing how the snow is shoveled. DESCRIPTION OF SYMBOLS 1... Vehicle body, 2... Auger blade, 2A... Inner surface, 3... Main shaft, 4A... Outer peripheral surface, 5... Chip, 6... Capture claw, 7... Tire chain, 8...
...Capturing claw, 8a... Tip, 9... Holding space, 10
... Send rod, 11 ... Snow suction blower, 12 ...
Rotating space, 12A...Front plate, 13...Suction port,
14...Snow throwing chute.

Claims (1)

[Scope of utility model registration request] A snowplow in which a spiral auger blade is rotatably attached to the front part of the vehicle body via a main shaft, and a plurality of tips are arranged on the outer peripheral surface of the auger blade,
A capture claw for capturing a foreign object such as a tire chain is arranged between the plurality of chips, and the tip of the capture claw faces the rotation direction of the auger blade and is bent toward the center of the vehicle body. A tire for a snowplow, characterized in that the tire is bent toward the main shaft, and a holding space for holding a foreign object such as the tire chain is formed between the tip of the catching claw and the inner surface of the auger blade. Capturing devices such as chains.