JPS624029Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a loading platform structure for a transport vehicle for transporting lumber mainly used in mountainous areas.

Most of the loading platforms of conventional transport vehicles have a fixed structure with a fixed length.

By the way, when loading long wood, it is preferable that the loading platform be as long as possible.

However, if the loading platform is made longer, the long loading platform becomes a hindrance when traveling on narrow mountainous roads with sharp curves, making it difficult to obtain the turning radius necessary for driving, and making it difficult to carry out the loading work.

Therefore, this invention attempts to solve the above-mentioned problems by changing the length of the loading platform to be longer or shorter as necessary.

Hereinafter, specific embodiments of this invention will be described with reference to the drawings.

FIGS. 1 and 2 are a side view and a plan view, respectively, of a transport vehicle equipped with a turntable, which employs the carrier structure according to the present invention.

First, let me explain the general structure of the transport vehicle.
A flat plate-shaped loading platform 1 is partitioned by a partition plate 2 that partitions the area approximately in the center into upper and lower sections, with the front section being a control section A, the rear section B being a loading section B, and the lower part of the loading platform 1 being a running section C.

The control section A is equipped with an engine 3 as a power source, a seat 4 on which a driver sits, various operating levers, pedals 5, etc.

A flat loading platform 1 is stretched over the loading platform section B, and a protruding portion 6 is provided in which only the central portion is extended rearward from the rear end of the loading platform 1, leaving both sides intact. The front part of the protruding part 6 is formed as the mounting seat 8 of the turntable 7, and the main frame 10 connecting the side plates 9 forming the protruding part 6 is hung at the rearmost part.

The traveling section C is a crawler type with driving wheels 12 and passive wheels 13 respectively provided at the front and rear of the track frames 11, 11, and crawlers 14, 14 wound around them. The power of the engine 3 is transmitted to the driving wheels 12 via a transmission 15. Furthermore, a winch 16 is installed directly below the center of the bed 1, and a rope 18 is paid out so that it can be redirected rearward by an idler 17 provided at the top of the partition plate 2.

FIGS. 3 and 4 are a side view and a plan view, respectively, of the transport vehicle with the turntable 7 removed and the first extended loading platform connected in series. The first extended loading platform 19 is connected in the following manner. do.

In other words, the first extension loading platform 19, which is a flat plate body with the protruding portion 6 at the rear of the loading platform 1 cut backward, is connected to the rear end surface (joining surface A) of both sides of the loading platform 1 and the rear end surface of the protruding portion 6 (joining surface B). ) and butt join.

FIG. 5 and FIG. 6 are a side view and a plan view of the main parts, respectively, showing the state in which the first extension loading platform 19 is joined.
FIG. 7 is an enlarged side view of the joint surface A. The joint surface A adopts a so-called U-bolt connection, and a flat plate body 20 protruding from the first extension loading platform 19 side is provided.
A U bolt 21 is inserted into this, and nuts 22, 22 are screwed together from above the flat plate body 20. Also, on the fixed loading platform 1 side, there is a pin 2 that is inserted into this U bolt 21.
3 to protrude, move the first extension loading platform 19 straight from the rear to the front, insert the pin 23 into the U bolt 21, and tighten the nuts 22, 22 to fix it.

Next, the B joint surface is attached to the lower side of the first extension loading platform 19.
This engaging body 2 is formed by forming a letter-shaped engaging body 24 and moving the first extension loading platform 19 from the rear to the front.
4 collides with the main frame 10 described above and is fixed with fasteners 25.

As described above, in any case, in order to connect the first extended loading platform 19 to the loading platform 1, it is possible to simply move both the A and B joint surfaces in parallel from the rear to the front.

Figures 8 and 9 show the second extension platform after the first extension platform 19.
Side views of the case where the extension loading platform 26 is installed,
This is a plan view, and FIGS. 10 and 11 are cross-sectional views of the joint surfaces thereof. Since the rear end of the first extended loading platform 19 is a flat surface, the second extended loading platform 26, which is also a flat view, Butt the front ends together and use a suitable fastener 27.
etc. will be concluded. In some cases, as shown in FIG. 10, metal fittings 28 and 29 may be provided below the respective abutting surfaces to increase the abutting area.
The bending moment applied to this abutting surface can be absorbed. In addition, as shown in Fig. 11, the first extension loading platform 19
In addition to providing the inserting pin 30 vertically on the side, the second
An insertion rod 31 that is inserted into the insertion link 30 may be provided at the front end of the extension loading platform 26, so that it can be inserted from above. Furthermore, it is suitable that the second extension loading platform 26 is formed so as to rise upward toward the rear.

According to this invention, the length of the loading platform can be set to the optimum length depending on the length of the wood to be loaded, the roads in mountainous areas, forest areas, etc., and other work conditions and circumstances. Since the extended loading platform has a three-point support structure, its fixation is reliable.

In addition, when installing a second extended loading platform in addition to the first extended loading platform, a wider range of loading platform adjustment is possible.
Furthermore, if a U-bolt connection structure is used as the connection means, a simple and quick connection can be obtained, and furthermore, if the second extension platform is formed in a shape that rises at the rear, sagging due to overhang can be prevented.

[Brief explanation of the drawing]

The drawing shows a specific example of this invention.
Figure 2 is a side view and a plan view of the transport vehicle when a turntable is used, Figures 3 and 4 are a side view and a plan view of the transport vehicle when the first extension loading platform is connected, and 5 and 6 are side views and plan views of the main parts, FIG. 7 is an enlarged side view of the joint, and FIGS. 8 and 9 are side views of the transport vehicle with the second extended loading platform connected, and The plan view, Figures 10 and 11 are the 2nd
FIG. 7 is a cross-sectional side view of the main parts of the extension bed joint. Code, 1... Loading platform, 6... Protruding part, 7... Turntable, 8... Turntable mounting seat,
19...first extended loading platform, 26...second extended loading platform.

Claims (1)

[Claims for Utility Model Registration] 1. For a loading platform 1 having a substantially rectangular protruding portion 6 formed in a rearwardly protruding central portion at the rear of the loading platform, the loading platform 1 The first extension loading platform 19, which is formed to extend continuously from the loading platform 1, is removably supported at the rear end surface of the protruding portion and at both rear end surfaces of the loading platform 1. A loading platform structure for a transport vehicle, characterized in that it can be attached to and detachably from a loading platform 1. 2. A loading platform structure for a transport vehicle, characterized in that a second extending loading platform 26, which has the rear end surface of the first extending loading platform 19 as a joint surface, is removably connected to the first extending loading platform 19 as described in claim 1 of the Utility Model Registration Claim. 3. Loading platform 1 described in claim 1 of the utility model registration claim
A loading platform structure for a transport vehicle, characterized in that the connection structure between both rear end surfaces and the first extended loading platform 19 is a U-bolt connection structure. 4. A loading platform structure for a transport vehicle, characterized in that when the second extended loading platform 26 described in claim 2 of the utility model registration is connected, the rear end thereof is formed upwardly toward the rear.