JPH0639769B2 - Overhead throw type shovel loader that forms snow on the road into snowflakes and loads it on trucks, etc. - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an improvement of a shovel loader for snow removal, and more specifically, to a mechanical shape in which snow on the road can be easily loaded on a transportation vehicle such as a truck. Molded and cab by overhead throw method
The present invention relates to a new type shovel loader for snow removal that can be loaded and unloaded from the upper part to the rear part, and is particularly useful for rationalizing snow removal work on a one-lane road where it is difficult to change direction.

[Conventional technology and technical problems to be solved]

As is well known, a self-propelled vehicle that removes snow on the road includes snow plows and blades that push the snow on the road toward the road side to form a snow bank and secure a traffic road surface.
e) with a type (for example, snow removal trucks, bulldozers, motor graders, etc.) and on the roads so that snow on the roads that gets in the way can be loaded on a transportation vehicle such as a truck and thrown to a snow dump. There is an excavator loader that can scoop snow and lift it to put it on the bed of a dump truck.

Although the former push-and-push snow removal type is effective when targeting wide roads such as national roads and highways, it is not possible to form snow banks due to the narrow width. Is not suitable for snow removal.

To remove snow on narrow roads, it is necessary to cleanly remove snow without building snow banks so that fire trucks can pass without obstacles.Normally, shovel loaders are used to scoop off snow on the road and load it onto a dump truck. You have to go to a snow dump and so on.

By the way, on a narrow road in an urban area, it is impossible to freely change the direction of the shovel loader and the 雖. Therefore, while keeping the dump truck on the cross road that is orthogonal to the target road for snow removal, the shovel loader goes straight on the road for snow removal and scoops the snow on the road and puts the scooped snow on the bucket. It was lifted up and backed up to the intersection, and the snow of the bucket was thrown into the loading platform of the dump truck that was waiting, so it was necessary to remove the snow. Not only was it dangerous, but the excavator loader driver was exhausted.

The present invention has been made in view of the above-mentioned difficulties and dangers in snow removal work by a shovel loader on a narrow road such as an urban area, and it is not necessary to repeat back driving of the shovel loader, which is dangerous and painful. In addition, a new type that can be quickly loaded and unloaded from the top of the cab to the rear by the overhead throw method without shaping the snow on the road into a shape that can be easily loaded on the bed of a truck or the like without changing the direction. It is a technical object to provide a shovel loader for removing snow.

[Means adopted for solving the problem]

Means adopted by the inventor for solving the above technical problems will be described below with reference to the accompanying drawings.

That is, the "overhead throw type shovel loader" provided by the present invention is as follows. A lift arm 2 pivotally supported on the front part of the chassis 1 and erected and oscillated toward a cab-over position P above the cab 11 as a lift cylinder 21 interposed between the chassis 1 and the chassis expands and contracts. B. a lifting means; Edge portion 32a and edge portion 3 that can be installed on the road surface G
A shell member integrally having a snow-covered portion 32b that forms a substantially cylindrical concave curved surface continuous to the back of 2a, and side plates 32c and 32c that surround both sides of the edge portion 32a and the snow-covered portion 32b. The snow bucket 3 is pivotally supported at the free end of the lift arm 2 and the relative angle with the lift arm 2 and the ground contact angle are adjusted by the expansion and contraction operation of the bucket cylinder 31 provided between the lift arm 2 and the arm 2. Scooping means; C. It is an upper shell member that fits on the inner edge of the snow bucket 3 and closes the lid to form a compressed snow space for gripping the snow in a compressed state. The free end of the lift arm 2 is coaxial with the snow bucket 3. A snow lump forming means that is a pressure snow gripper 4 that is hingedly connected to the section and is opened / closed by the expansion / contraction operation of an opening / closing cylinder 41 provided between the snow bucket 3 and the snow bucket 3. D. A gutter-shaped member having a width that allows the snow mass S ₁ gripped by the snow bucket 3 and the pressed snow gripper 4 to be slidably supported on the rear side of the cab 11 in a vertically swingable manner, and that can be slid. , Extends to the rear of chassis 1,
The front end portion, which serves as a snow block inheritance portion, can extend and retract the chute cylinder 51 to allow the snow compaction gripper 4 to approach the cabover position P where it should open downward, while the chute cylinder 51 shrinks. The rational integration of the technical means listed in the above A, B, C and D, such as a tilt snowshooter 5 snow mass carry-out means that causes the rear end side to swing down and outflow the snow mass when operated. Has completed an "overhead throw type shovel loader for forming snow on the road into snowflakes and loading it on a truck or the like", and succeeded in solving the above-mentioned technical problem.

〔Example〕

Hereinafter, the present invention will be described in more detail with reference to the embodiments shown in the accompanying drawings. FIG. 1 is a side view showing a state of snow removal and snow mass loading according to the first embodiment of the present invention, and FIG. 2 is a partially enlarged sectional view showing an opening / closing mechanism of a snow bucket / snow gripper according to the first embodiment. FIG. 3 is a partially enlarged perspective view showing the opening / closing mechanism of the snow bucket / snow gripper, FIG. 4 is a partially enlarged perspective view showing the tilt mechanism of the snow shooter in the first embodiment, and FIG. It is a side view which shows the snow removal and the snow mass loading state by 2nd Example of invention.

In the drawing, what is indicated by reference numeral 1 is a chassis of the shovel loader C of this embodiment, and a cab 11 on which a driver rides and operates is provided on the chassis.

The reference numeral 2 designates a lift arm pivotally supported on the front portion of the chassis 1 via a pivot P _{1 so as} to be vertically swingable, and is a fluid pressure cylinder (main body) provided between the chassis 1 and the lift arm. By the extension operation of the hydraulic cylinder (21 in the embodiment), it rises and swings toward the cab-over position P above the cab 11.

What is indicated by reference numeral 3 is a snow bucket pivotally supported by the free end of the lift arm 2 via a pivot P ₂ .
By the extension operation of the fluid pressure cylinder (hydraulic cylinder) 31 provided between the lift arm 2 and the lift arm 2, the relative angle with the lift arm 2 and the installation angle with the road surface G can be arbitrarily adjusted. In the present embodiment, the snow bucket 3 has a cutting edge portion 32a that excavates the snow accumulation S on the road surface G, and a scooping snow portion 32b that forms a cylindrical concave curved surface that scoops the snow S excavated by the edge portion 32a, The edge portion 32a and the side plates 32c and 32c that surround both side surfaces of the snow shoveling portion 32b are formed.

What is indicated by reference numeral 4 is a compressed snow gripper that is coaxially supported by the snow bucket 3 and is pivotally supported at the free end of the lift arm 2 by a pivot P ₂ , and as shown in FIG. It functions as an upper shell member that forms a cylindrical space for gripping snow in a compressed state by fitting and closing the lid. That is, the upper inner surface 42a of the snow gripper 4 forms a cylindrical concave curved surface capable of forming a cylindrical space corresponding to the snow-covered portion 32b of the bucket 3, and the side plates 42b are formed on both side surfaces thereof. Have. The pressure snow gripper 4 opens and closes by opening and closing the upper and lower jaws by the expansion and contraction of the opening and closing cylinder (hydraulic cylinder) 41 connected between the side plate 42b of itself and the side plate 32c of the snow bucket. The snow S scooped on the snow part 32b can be formed into a columnar snow mass S ₁ .

Reference numeral 5 designates a tilt snow shooter of a balance type which is vertically swingably arranged on a column T standing upright behind the cab 11 in the chassis 1, and comprises the snow bucket 3 and the pressure snow gripper. The snow mass S ₁ gripped by 4 and 4 has a width that allows slipping, and its rear end portion extends to the rear of the chassis 1. The snow shooter 5 will lie substantially horizontally on the roof of the cab 11 due to the extension operation of the chute cylinder 51 (hydraulic cylinder) provided between the snow shooter 5 and the column T. Then, the cab side end of the snow shooter 5 in this state is made to approach the free end of the snow snow gripper 4 when the lift arm 2 rises to the cab over position P and the snow snow gripper 4 opens. It is designed and can inherit the snow mass S ₁ that is formed into a cylindrical shape by the snow bucket 3 and the pressed snow gripper 4 and is transferred. The snow mass S _{1 that} has been inherited causes the snow shooter 5 to tilt backward by reducing the size of the shoot cylinder 51, and the dump truck D standing by behind the shovel loader C.
Are transferred to the loading platform and loaded.

The apparatus of the present embodiment is configured as described above, but the present invention is by no means limited to the above-mentioned embodiments, and various modifications can be made within the scope of the "Claims". A conventionally known connecting mechanism can be adopted as a connecting means for the lift arm 2, the snow bucket 3, the pressure snow gripper 4, and the snow shooter 5, and a snow bucket for scooping the snow accumulation S on the road surface G to form a snow mass. 3 and the specific shape of the inner surface of the snow compaction gripper 4 can be appropriately changed in consideration of the convenience of loading on the transportation vehicle. For example, as shown in FIG. Alternatively, it can be formed into a semi-cylindrical snow mass so that it can be loaded on the dump truck D, or it can be adopted at any time upon request.

[Effect of the present invention]

As described in the above examples, the shovel loader manufactured by applying the present invention scoops snow on the road surface into a snow bucket while advancing, and shoots it in conformity with the inner surface shape by the closing operation of the snow gripper. When the bucket and the snow gripper are opened by compression-molding into a shape that is easy to load, yet in a low-bulk and high-density state, and the bucket and the compressed snow gripper are opened, the snow mass is rolled out to a tilt / snow shooter that waits horizontally in a recumbent posture. Then, if the snow shooter is tilted rearward, the snow mass can be quickly loaded on the bed of a transportation vehicle such as a dump truck waiting in the rear.

Therefore, according to the shovel loader of the present invention, even on a road in a narrow urban area, snow removal and loading onto a transportation vehicle such as a truck can be performed safely and promptly with almost no back-driving. Since it is not necessary to drive back a long distance to the next intersection and then change direction at a right angle to carry out the loading work, the driver's fatigue is greatly reduced and snow removal efficiency is also dramatically improved. Become.

As described above, the shovel loader of the present invention can fundamentally solve a bottleneck for snow removal work on a narrow road such as an urban area, which has been conventionally considered as a drawback common to snow removal machines of this type. It is a great advantage for snowplows.

[Brief description of drawings]

FIG. 1 is a side view showing a snow removal / snow mass loading state according to the first embodiment of the present invention, and FIG. 2 is a partially enlarged sectional view showing an opening / closing mechanism of a snow bucket / snow gripper according to the first embodiment. FIG. 4 is a partially enlarged perspective explanatory view showing an opening / closing mechanism of the snow bucket / snow gripper, FIG. 4 is a partially enlarged perspective explanatory view showing a tilt mechanism of the snow shooter in the first embodiment, and FIG. It is a side view which shows the snow removal and the snow mass loading state by 2 Example. 1 ... Chassis (of shovel loader), 11 ... Cab, 2 ... Lift arm, 21 ... Lift cylinder, 3 ... Snow bucket, 31 ... Bucket cylinder, 4 ... Snow gripper, 41 ... Open / close cylinder, 5 ... Tilt / Snow shooter, 51 ... Chute cylinder, C ... Shovel loader, D ... Dump truck, G ... Road surface, P ₁ / P ₂ ... Axis, P ... Cabover position, S ₁ ... Snow mass, T ... (Snow shooter) prop.

Claims (1)

[Claims] 1. A cab-over position P above the cab 11 in response to a lift cylinder 21 pivotally supported at the front of the chassis 1 and interposed between the chassis 1 and the chassis to expand and contract.
A lift arm 2 which oscillates upright toward the edge portion; an edge portion 32a that can be installed on the road surface G, and the edge portion 32a.
The snow-covered part 32 that forms a substantially cylindrical concave curved surface that is continuous in the back of the
b, and a shell member integrally having side plates 32c and 32c surrounding both sides of the edge portion 32a and the snow-covering portion 32b, which is pivotally supported at the free end portion of the lift arm 2 and The snow bucket 3 whose relative angle to the lift arm 2 and the ground contact angle are adjusted by the expansion and contraction operation of the bucket cylinder 31 interposed between the snow bucket 3 and the lift arm 2.
An upper shell member that fits into the inner edge of the snow bucket 3 and closes the lid to form a compressed snow space for compressing the snow in a compressed state. A pressure snow gripper 4, which is hingedly connected to a free end and is opened / closed by expansion / contraction of an opening / closing cylinder 41 provided between the snow bucket 3 and the snow bucket 3. It can be vertically swung in a balance type behind the cab 11. Being supported by the snow bucket 3 and the snow gripper 4
It is a gutter-shaped member having a width that allows the snow mass S ₁ gripped by and to slide, and extends to the rear of the chassis 1, and the front end portion that serves as the snow mass inheritance portion causes the chute cylinder 51 to expand and contract. As a result, the snow compaction gripper 4 can approach the cabover position P that should open downward, and can succeed the snow mass. On the other hand, when the chute cylinder 51 is contracted, the rear end side swings downward to swing the snow mass S ₁ An overhead-throw type shovel loader for forming road snow on a truck etc., which includes a tilt snow shooter 5 for discharging the snow.