JP2006213304A - Trailer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a small-sized trailer for a farm work vehicle capable of attaining safe and efficient loading and unloading in a short time. <P>SOLUTION: This trailer has a structure in which at least rear edges of a frame and a deck supported by a pair of right and left wheels and an axle of the wheels, and a joint bar are supported at a rear edge at rear side more than a front edge of the deck frame, and the deck is inclined with its support point as a fulcrum. When the deck is inclined or returned to be horizontal, the deck is smoothly operated by a damper of which the one end is jointed with the joint bar and the other end is jointed with the frame or the deck under movable condition so as not to be abruptly operated. Especially, for a farm work vehicle having a crawler, a crawler guide is provided at an inner side or an outer side of the crawler so that the vehicle body may not be shifted. Besides, at the time of loading/unloading the farm work vehicle, a tread board attached to the rear edge of the deck is used. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

Detailed Description of the Invention

  The present invention relates to a trailer, and more particularly to a trailer suitable for mounting a pair of left and right endless tracks or a small farm vehicle that travels with a pair of left and right wheels or two or more wheels or tires.

  2. Description of the Related Art Conventionally, various trailers have been proposed that are loaded with some kind of luggage, equipment, machines, instruments, vehicles, small ships, and the like and run by being pulled by a towing vehicle. However, it was suitable for agricultural vehicles, and could be easily and safely loaded and unloaded, and there was nothing that could be run. In particular, during the busy agricultural season, it was difficult to get on and off the farm vehicle safely and easily in a short time, while it was necessary to intensively harvest crops in a short period of time.

In addition, there are two types of joints with the trailer, the ball type and the pintle hook type, which are not compatible. In addition, the loading platform tilting trailer requires troublesome work such as fixing the loading platform tilt and storing the step board.

  The present invention has been made in order to eliminate the disadvantages of the current agricultural vehicle loading trailer as described above. In particular, in the busy season of agriculture, it is necessary to collect crops intensively in a short time, and it is an object to provide a small agricultural vehicle trailer that can be loaded safely and easily in a short time.

  The present invention relates to a structure in which a pair of left and right wheels, a frame and a cargo bed supported by the axles of the wheels, a rear end of a connecting rod is supported at least from the front edge of the cargo bed frame, and the cargo bed is inclined with the support point as a fulcrum. Thus, when the loading platform returns to an inclined or horizontal position, one end is connected to a connecting rod, and one end is operated gently by a damper movably connected to the frame or the loading platform so as not to operate suddenly.

Especially for farm vehicles that have an endless track, crawler guides are attached inside or outside the endless track to prevent the vehicle from shifting.
In addition, when loading and unloading farm vehicles, it is performed using a step board attached to the rear end of the loading platform.

  Embodiments of the present invention will be described below with reference to the drawings, but the present invention is not limited to those shown in the drawings.

  FIG. 1 is a side view of a trailer for agricultural vehicles according to the present invention and shows a traveling state.

  FIG. 2 is a side view of the state of the agricultural vehicle trailer according to the present invention when the agricultural vehicle is loaded and when the vehicle is getting off. The loading platform is inclined and the step board is descending.

  FIG. 3 is a perspective view of a connecting portion between a trailer and a trailer using a hitch ball of a farm vehicle trailer. A hitch ball bracket 11 is attached to a frame 10 of the trailer and a hitch ball 12 is attached to the hitch ball. On the trailer side, a ball coupler 13 is attached to the connecting collar 3 so that the ball coupler 13 covers the hitch ball 12 for connection.

  FIG. 4 shows another example of a connecting part using a pintle hook. A ring 15 is attached to the tip of the connecting hook part 3 to the pintle hook 14 for connection. However, there is a problem because both methods are not compatible.

  FIG. 5 is a perspective view showing an attachment / detachment bracket in a conventional small trailer towing device. A detachable portion insertion 17 having a hitch ball attached to the detachable portion sheath 16 is fixed by an insertion mounting pin 18. This method is not a problem with a small trailer, but because the strength is maintained by welding the base 19 and the detachable part sheath 16, it cannot be used for a heavy agricultural trailer with low strength.

  FIG. 6 and FIG. 7 are for solving the problem that the connection using the ball and the connection using the pintle hook are not compatible with each other. 20 is attached. A pin 21 is fixed to the detachable part base. The recess 23 of the detachable part 22 is fitted into the pin 21, and the detachable base 20 and the detachable part 22 are integrated by the pin 18.

  FIG. 7 shows an example in which a pintle hook is used. Similarly, the attachment / detachment portion 22 to which the pintle hook 14 is attached may be set on the attachment / detachment base 20. As a result, the towing device of the towing vehicle can be easily changed from the hitch ball to the pintle hook, and various trailers can be towed.

  FIG. 8 is a perspective view of a trailer for transporting a farm vehicle having a general crawler. A crawler loading platform 27 is provided on the left and right on the vehicle body member 26, and a crawler guide 28 is fixed inside the crawler loading platform 27. In the figure, the crawler guide 28 is on the inside, but some are provided on the outside.

  The left figure of FIG. 9 is a front view of one side in a state where the crawler 29 of the agricultural work vehicle is loaded on the crawler loading platform 27. If the crawler 29 is loaded in a state of being spaced from the fixed crawler guide 28 as shown in the figure, the agricultural work vehicle moves during the running, which is dangerous. Also, the distance between the crawlers and the width of the crawler varies depending on the type and model of the farm vehicle, and must be matched to the model with the narrowest crawler width.

  The right view of FIG. 9 is a front view on one side of the crawler loading platform 27 showing a state in which the present invention is implemented, and the movable crawler guide 30 can be freely moved as indicated by an arrow i. It shows the set state. If set in this way, the farm vehicle does not move on the loading platform during traveling, and it is very safe because it moves along the guide when loading and getting off. In the drawing, the crawler guide 30 can be adjusted with a long hole, but it goes without saying that the width may be adjusted with a screw or the like. Of course, it is needless to say that the trailer need not be tilted.

  FIG. 10 shows a state in which the present invention is carried out and shows the state of the loading platform and the loading platform fixing lock portion of the heel part 3 when the loading platform of the agricultural vehicle trailer is tilted. It is in the non-fixed state.

  FIG. 11 shows the fixed state. When the agricultural vehicle is loaded from the tilted state of the loading platform and moves in the direction of the arrow C, the loading platform 2 becomes horizontal due to the forward movement of the center of gravity. When the farm vehicle 39 further moves forward, the loading platform fixing claw 36 is pushed by the farm vehicle 39 and moves in the direction of the arrow D, and meshes with the collar fixing pin 38 to fix the loading platform horizontally.

  When unloading the farm vehicle, the loading platform fixing claws are released by the reverse of the farm vehicle 39. Thus, if the present invention is carried out, the loading platform can be automatically fixed and released when the agricultural vehicle is loaded and unloaded.

  Many of the current loading platform tilting trailers are fixed through a separate pin in the holes provided in the loading platform and the heel part, and each time the loading platform is tilted or fixed in a horizontal state, it takes time and effort. .

  FIG. 12 is a side view of the trailer in a state in which the invention of automatically raising and lowering the trailer board 8 of the agricultural trailer is implemented, and the farm vehicle 39 moves forward to push the trailer board lifting lever 41 as it advances forward as indicated by arrow ho. The board pulling lot 42 is pulled to raise the step board 8 like an arrow mark. The opposite is true when lowering. Moreover, it cannot be overemphasized that it is not necessary to be a loading platform inclination type trailer in this structure.

  FIG. 13 is a side view of a trailer showing another embodiment, in which the walking board 8 is raised and lowered by changing the angle of the loading platform and the connecting hook. In addition, the trailer may be mounted on any vehicle as long as it can be mounted on the left and right crawlers, left and right wheels or tires of the mounted vehicle, and the mounted vehicle is not limited to agricultural vehicles. It goes without saying that there is nothing.

The invention's effect

  As described above, the trailer of the present invention can load and unload farm vehicles safely and efficiently in a short time, and can travel safely, and the compatibility between the two types of traction devices of the ball and pintle hook is easy and different. A trailer having a connecting portion can be operated, and by using these, it is possible to effectively perform highly efficient agricultural work.

Agricultural vehicle trailer side view The side view of the loading platform inclination state of the trailer for agricultural vehicles. The perspective view of the connection part using a hitch ball. The perspective view of the connection part using a pintle hook. The perspective view which shows the connection part of the conventional small trailer. The perspective view of the attachment / detachment bracket using a ball | bowl. The perspective view of the attachment / detachment bracket using a pintle hook. The perspective view of the trailer which mounts the load which has a common crawler. The front view in the one side of a crawler carrier. The side view of the loading platform fixing lock part in a loading platform tilting state. The side view of the loading platform fixing lock part in a loading platform horizontal state. Side view of the trailer with the step board automatically raised and lowered. Side view of the trailer with the step board automatically raised and lowered

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tire 2 Carriage 3 Connection saddle part 4 Connection saddle part fulcrum 5 Trailer connection part 6 Shock absorber support part 7 Shock absorber 8 Step board 9 Step board movable fulcrum 10 Tow truck frame 11 Hitch ball bracket 12 Hitch ball 13 Ball coupler 14 Pintle hook 15 Wheel 16 Detachable part sheath 17 Detachable part insertion 18 Mounting pin 19 Base 20 Detachable part base 21 Pin 22 Detachable part 23 Recessed part 24 Pin hole 25 Adjustment bolt 26 Car body member 27 Crawler bed 28 Crawler guide 29 Crawler 30 Movable crawler guide 31 Movable Type crawler guide base 32 collar fixing pin insertion hole 33 cargo bed fixing pin base 34 cargo bed fixing pin insertion hole 35 cargo bed fixing claw support 36 cargo bed fixing claw 37 spring 38 collar fixing pin 39 agricultural work vehicle 40 step board pulling Lifting lever fulcrum 41 running board pulling lever 42 running board pulling rod 43 running board pulling link

Claims (4)

  Viewed from above, a U-shaped fixed pin at the bottom, a detachable base with a hole for inserting a detachable mounting pin at the top. Removable bracket for trailer towing device with holes.   A trailer with a guide that can be adjusted to an arbitrary position to regulate an endless track or tire on the trailer platform.   A trailer with a platform tilt mechanism that can lock and unlock the lock to fix the platform in a horizontal position by moving the load.   Trailer that can move up and down the trailer plate by moving the load.

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