JP3179883U - Heavy equipment transport trailer - Google Patents

Abstract

A trailer for transporting heavy equipment capable of preventing lifting of a support plate caused by a load and a centrifugal force during traveling when the heavy equipment is mounted in a trailer capable of mounting a heavy equipment exceeding the vehicle width of the trailer.
SOLUTION: Auxiliary frames 3b and 3c whose upper surfaces are horizontal are provided on the outer sides of left and right main frames 3 having an I-shaped cross section provided with upper and lower flanges 3a, and a crawler of a heavy machine is mounted on the upper surfaces of the auxiliary frames 3b and 3c. The supporting plate 4 to be placed is provided so as to be slidable from side to side. Further, a cylinder 5 for sliding the support plate 4 is provided, and an overhanging piece 4a is integrally formed on the inner lower portion of the support plate 4, and the overhanging piece 4a is formed on the lower surface of the flange piece 3a of the main frame 3. Arrange to touch.
[Selection] Figure 3

Description

  The present invention relates to a trailer for transporting heavy machinery such as a bulldozer and a power shovel, and more particularly to a technique for widening a loading platform to the left and right.

  Conventional general trailers are designed to meet the width limitations on highway travel, but such trailers may carry heavy equipment that is slightly beyond the width of the loading platform. In this case, some heavy machinery wheels and crawlers may protrude from the loading platform and shift to the side due to the centrifugal force caused by the running curve, causing a risk of falling off the loading platform.

  To solve this problem, support bases that are long and slidable to the left and right of the chassis frame are provided so that they can slide to the left and right. Patent Document 1 proposes a technology that can be mounted so that wheels and crawlers do not protrude. However, the inside of the support plate is lifted by the load of heavy equipment and the centrifugal force during travel, and the installed heavy equipment may become unstable.

JP-A-10-278659

  The problem to be solved by the present invention is to solve these conventional problems, and when loading heavy machinery exceeding the width of the loading platform by projecting the left and right support plates to the outside, It is to prevent the support plate from being lifted by force.

The configuration of the present invention that solves this problem is as follows.
1) A trailer on which heavy machinery can be mounted on the loading platform, and an auxiliary frame having a horizontal upper surface is provided outside the left and right main frames having cross-sections with I-pieces on the upper and lower sides. A support plate on which the crawler is placed is slidable to the left and right, a cylinder for sliding the support plate is provided, and an overhang piece is integrally formed on the inner lower portion of the support plate. The trailer for transporting heavy machinery is characterized by being arranged so as to be in contact with the lower surface of the flange of the frame.

  According to the present invention, when the heavy machine to be transported exceeds the width of the trailer bed, the left and right support plates are moved outward by the cylinder so that the heavy machine wheels and crawlers protrude from the expanded bed. Do not install. Even if the inside of the support plate tries to float up due to the load of heavy equipment and the centrifugal force during traveling, the overhanging piece of the support plate comes into contact with the lower surface of the flange of the main frame and the lifting is suppressed, It can be stabilized.

It is a side view of the trailer of an Example. It is a top view of the trailer of an Example. It is AA sectional drawing of FIG. It is explanatory drawing which shows the widening of the loading platform of an Example.

  Hereinafter, the form for implementing this invention is concretely demonstrated based on an Example and drawing.

  The trailer 1 shown in FIGS. 1 to 3 is a semi-trailer equipped with a coupler (not shown) for coupling with the tractor 8 at the front, and with a wheel 2 at the rear, and has a hook piece 3a at the top and bottom. A main frame 3 having an I-shaped cross section is provided on the left and right. An auxiliary frame 3b whose upper surface is horizontal and extends in the front-rear direction is provided at an outer position of the left and right main frames 3, and a plurality of auxiliary frames 3c whose upper surface is horizontal and extends in the left-right direction are provided between the left and right auxiliary frames 3b. Yes.

  The support plate 4 is in the shape of a hollow box that is long in the front-rear direction. The width of the support plate 4 is wider than the width of the crawler 7a of the bulldozer 7 (heavy machine) to be mounted, and is placed on the upper surfaces of the auxiliary frames 3b and 3c. A projecting piece 4 a that protrudes horizontally is integrally formed at the inner lower part, and the projecting piece 4 a is disposed so as to be in contact with the lower surface of the upper piece 3 a of the main frame 3. An inner cylinder 4b for inserting and connecting the rod 5a of the cylinder 5 is formed on the inner wall.

  The cylinder 5 is hydraulic, and a plurality of cylinders 5 are attached at equal intervals in a lateral orientation with the telescopic rods 5a facing outward at positions between the left and right support plates 4. The telescopic rod 5 a is inserted and connected to the inner cylinder 4 b of the support plate 4, and the whole is covered with the outer cylinder 5 b together with the inner cylinder 4 b of the support plate 4. In addition, the code | symbol 6 is a wooden board for protecting the support plate 4 from the crawler 7a of the bulldozer 7. FIG.

  As shown in FIG. 4A, when the bulldozer 7 to be transported does not exceed the width of the loading platform of the trailer 1, the cylinder 5 is contracted and the left and right support plates 4 are stored inward to Mount in the same width as the width. As shown in FIG. 4 (b), when the bulldozer 7 to be transported exceeds the width of the loading platform of the trailer 1, the cylinder 5 is extended to extend the left and right support plates 4 outward, and the expanded The crawler 7a is mounted on the loading platform so as not to protrude.

  As a result, since the entire lower surface of the crawler 7a is in contact with the support plate 4, even if a centrifugal force is generated in the running curve, it is difficult to shift laterally, and the risk of falling off the support plate 4 is reduced. Moreover, even if the inside of the support plate 4 tries to float up due to the load of the bulldozer 7 and the centrifugal force during traveling, the overhanging piece 4a of the support plate 4 is in contact with the lower surface of the flange 3a of the main frame 3 to prevent the lift. As a result, the installed bulldozer 7 is stabilized.

  The technology of the present invention is used for a trailer that transports heavy machinery such as a bulldozer or a power shovel.

DESCRIPTION OF SYMBOLS 1 Trailer 2 Wheel 3 Main frame 3a Rod piece 3b Auxiliary frame 3c Auxiliary frame 4 Support plate 4a Overhang piece 4b Inner cylinder 5 Cylinder 5a Telescopic rod 5b Outer cylinder 6 Wood board 7 Bulldozer (heavy equipment)
7a Crawler 8 Tractor

Claims (1)

  A trailer that can mount heavy machinery on the platform, and has an auxiliary frame with a horizontal top surface on the outside of the left and right main frames with I-shaped cross-sections with upper and lower pieces, and wheels or crawlers of heavy machinery on the upper surface of the auxiliary frame. A support plate to be placed is slidable left and right, a cylinder for sliding the support plate is provided, and a projecting piece is integrally formed at the inner lower portion of the support plate, and the projecting piece is attached to the main frame. A trailer for transporting heavy machinery, characterized in that the trailer is placed in contact with the bottom surface of the sword.

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