JP3231657U - Side shutter vertical holding device attached to both ends of the left and right blades of the snow removal blade - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure safety for people working in the surroundings without protruding from both ends of a blade, and to avoid damage to buildings and facilities in contact with a road shoulder, and to obtain a safe and reliable snow removal effect. A shutter vertical holding device is provided. SOLUTION: A side shutter vertical holding device is a snow removing blades 30 and 31 which are attachments for work of a wheel loader, and side shutters 10 and 11 having a V-shaped vertical structure at the left and right blade ends with respect to the traveling direction of the snow removing surface. A support shaft 21 for fixing to the back of the center blade 30 is provided on one of the two parallel rods 20 that maintain the parallelism of the side shutters, and the other 22 is laid on the back surface of the left and right snow removal blades 31 and connected to the side shutters. At the lower ends of the left and right blades, a movable shaft centered on one support shaft is provided on the side shutter to keep the side shutter perpendicular to the traveling direction of the snow removal vehicle, and the side shutter can be stored. The side shutter unit is configured. [Selection diagram] Fig. 3

Description

The wheel loader is equipped with a work attachment at the front tip of the main body of the work vehicle to carry out various tasks such as transporting and loading earth and sand and feed, removing snow on roads and premises, and transporting wood. Various attachments such as buckets, blades, and forks are selected according to the work content, and the work attachments are mounted on the front surface of the work vehicle.

Among the work attachments attached to the tip of the work vehicle, the snow removal blade is used as an attachment for the snow removal work vehicle in snowy areas, and various types of snow removal such as in narrow roads such as general roads and residential areas and in parking lots and open spaces. It has a feature that enables it to be used in the field.

Conventionally, in snow removal blades, during snow removal work, snow blocks collected from both the left and right ends of the blade remain on the snow-removed road surface, and in order to improve work efficiency, improvements have been made to install side shutters on both ends of the blade. ..

The side shutters attached to the left and right ends of the conventional snow removal blade are installed in a V shape with respect to the traveling direction of the work vehicle, and are attached so that the snow mass collected from the left and right ends of the blade does not fall off.

Japanese Unexamined Patent Publication No. 2008-297809

It is a work attachment attached to the tip of the work vehicle of the wheel loader, and the side shutters attached to the left and right ends of the conventional blade are installed in a V shape with respect to the traveling direction of the work vehicle, so the side shutters are stretched. It was pointed out that the durability was inferior because the side shutter was structurally heavily overhanging from the blade at the time of departure, and there was a risk of suddenly protruding beyond the width of the snow removal blade, which was regarded as a problem. In addition, the fact was that it was not suitable for removing snow from the edges of road shoulders and narrow residential roads.

A parallel link rod consisting of two rods connected to the left and right side shutters, instead of the conventional side shutters attached to the left and right ends of the blade installed in a V shape with respect to the traveling direction of the work vehicle. By having a mechanism, we devised a mechanism in which the side shutters on both the left and right ends do not protrude from both ends of the blade and are held perpendicular to the direction of travel of the work vehicle.

This parallel link rod mechanism is a mechanism for the purpose of constantly holding the side shutters at both left and right ends perpendicular to the traveling direction of the work vehicle even when the left and right blades are opened and closed and tilted.

With the parallel link rod mechanism, the side shutters attached to both ends of the left and right blades did not protrude from both ends of the blades, and it was possible to acquire a mechanism that holds the side shutters perpendicular to the traveling direction of the work vehicle.

With this parallel link rod mechanism, the vertically held side shutters ensure safety for people working around them and prevent damage to the edges of the shoulders and buildings and facilities in contact with the shoulders. I was able to obtain a reliable snow removal effect.

Side view of the present invention, side shutter mounted snow removal blade mounted on the wheel loader The present invention, a side shutter mounted snow removal blade, a perspective view from the front of the work vehicle A perspective view showing a snow removal blade equipped with a side shutter and a parallel link function of the present invention. The present invention, side shutter unit part A plan view from above of the vehicle showing the side shutter that opens in a V shape of a conventional snow removal blade equipped with a side shutter The plan view from the upper side of the vehicle showing that the snow removal blade equipped with the side shutter of the present invention is held perpendicular to the traveling direction.

Explaining the method of implementing the present invention with reference to FIG. 1, as shown in the side view of the wheel loader work vehicle, the side shutter is at the position of 10 when the side shutter is protruding and at the position of 11 when the side shutter is not used when removing snow. As shown in the full perspective view of the wheel loader work vehicle in FIG. 2, the side shutter 10 is a part that protrudes from both ends of the blade to prevent the snow mass collected while removing snow from being damaged, and is unused from the protrusion of the side shutter. Indicates the state in which the side shutter unit 12 is attached to both ends of the blade to store the time.

The present invention and the side shutter vertical holding device will be described with reference to FIG. 3. The snow removal blade, which is the main work part of the snow removal work, has left and right snow removal blades 31 centering on the center blade 30, and the tip of this blade has a snow removal blade 31 on the left and right. The side shutter unit 12 is attached. When the side shutter is used, the side shutter protrudes 10, and when not in use, 11 is stored in the rear.

In order to hold the side shutter vertically, two parallel rods 20 are arranged on the left and right sides of the parallel rod support shaft 21 on the back surface of the snow removal blade, and the tips thereof are connected to the side shutter unit 12 by a movable shaft 22.

The side shutter unit 12, which is a perspective view of 10 when the side shutter is projected, will be described with reference to FIG. 4, and is composed of a hydraulic unit 13 that moves the side shutter with the rotation shaft 14 as a support shaft.

As an embodiment, as described with reference to FIG. 5, the conventional snow removal blade 31 and the side shutter projecting 110 form exceed the snow removal blade width and form a V shape, so that the load on the side shutter is large and the projecting operation is performed. At times there was a risk of property damage and personal injury accidents.

In addition, it was regarded as a problem that the snow removal surface of 110 when the side shutter protruded was not uniform with respect to the blade width with respect to the angle operation of the snow removal blade.

Explaining the present invention and the embodiment with reference to FIG. 6, the snow removal surface of 10 when the side shutter is projected when the side shutter vertical holding device is attached is such that the parallel link rod 20 constantly moves with respect to the snow removal traveling direction even when the angle operation of the snow removal blade is performed. It was possible to obtain vertical holding, drastically reduce property damage and human injury accidents when the side shutter protrudes, and reduce the burden on the side shutter.

X: Wheel loader work vehicle body Y: Front wheel of wheel loader work vehicle Z: Wheel loader work vehicle and attachment connection arm 10: Side shutter protruding position 11: Side shutter not used When stored Position 12: Side shutter unit 13: Hydraulic unit for projecting or storing the side shutter 14: Rotating support shaft for projecting or storing the side shutter 20: Vertically holding the side shutter units at both ends of the blade Parallel link rod 21 ... Support shafts of the left and right parallel link rods that vertically hold the side shutter units at both ends of the blade 22 ... Connection shaft between the side shutter units at both ends of the blade and the parallel link rod 30 ... Snow removal plate Center blade part 31 ・ ・ ・ Blade part 110 of the left and right snow removal plates ・ ・ ・ Position when the conventional side shutter protrudes 120 ・ ・ ・ Position when the conventional side shutter is not used and stored

Claims (2)

The snow removal blade, which is a work attachment for the wheel loader, is provided with side shutter mechanisms that are held vertically at both ends of the left and right snow removal plate blades with respect to the direction of travel of the snow removal vehicle during snow removal work. A side shutter vertical holding device characterized in that by holding the vertical position, it is possible to prevent the snow mass received from the snow removal surface on the blade surface from falling off from both ends of the left and right snow removal plate blades. The side shutter vertical holding device according to claim 1 is equipped with a side shutter unit for the purpose of always keeping vertical to the vehicle traveling direction during snow removal work, and a parallel link rod is connected to this unit to remove snow. The vertical holding side shutter mechanism mounted on both the left and right ends of the blade makes it possible to constantly hold the side shutter vertically with respect to the vehicle traveling direction, and the support shaft located behind the center blade is used as a fixed support point to remove snow. A side shutter vertical holding device having a parallel link rod mechanism, which is characterized in that the side shutter is constantly kept perpendicular to the traveling direction even when the plate blade is angled in the front-rear direction.

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