JPH022652Y2 - - Google Patents

Description

[Detailed Description of the Invention] A. Field of Industrial Application The present invention relates to a traction connecting rod locking device that can freely adjust the distance between the tractor and trailer platforms of a long goods loading vehicle.

B. Conventional technology In the past, positioning was often limited due to specification conditions when adjusting the loading platform spacing, and even if free adjustment was possible, the strength of the fastening and fixing parts was poor because they shared the load front and rear, left and right, and up and down. Since the structure is such that it can guarantee the safety of the lock, it is made up of more parts than necessary when considering the lock device itself.

C. Purpose and Summary of the Present Invention On the other hand, the purpose of the present invention is to provide a locking device that can freely adjust the loading platform spacing and take measures to distribute the load to the fastening points as a solution to the above-mentioned conventional problems.

The traction connecting rod fastening of the present invention is formed by a loading platform end beam (front) support part and a locking device structure combined with this, and has a load separation structure in which each member takes charge of its own load.

Load sharing includes towing loads (front and rear loads), steering loads (left and right loads), and loads on up and down slopes (up and down loads), and in the present invention, the traction connecting rod fastening band shares the load for positioning the platform spacing and towing. Other loads such as vertical and horizontal loads can be shared through gaps provided in the traction connecting rod support portions at the end beams of the loading platform.

D. Embodiment The attached drawings show an embodiment of the present invention. Fig. 1 is a plan view illustrating the main parts of the invention and the relationship between the loading platform, and Fig. 2
The figure is a side view of Figure 1, Figure 3 is a diagram illustrating the relationship between the lock device mounting part and the loading platform interval, and Figure 4 A,
B is a side view (A) partially showing the locking device mounting part and a front view (B) of its vertical cross section, and FIG.
It is an exploded perspective view of the figure part.

In the figure, 1 is a trailer loading platform, 2 is a tractor, 3 is a traction connecting rod, 4 is a locking device presser plate, and 5 is a
is a ring plate (spacer), 6 is a connecting rod fixing band, 7
is a special bolt with a handle, 8 is a collar, 9 is a hexagonal bolt, 10 is a spring washer, 11 is a loading platform end beam (front), 12 is a hexagonal nut welded to the loading platform end beam 11, 13 is a tractor with traction connecting rod 3 This is a connecting pin to 2.

In addition, the holding plate 4 is attached to the loading platform end beam (front) 11 and the collar 8.
They are tightened with hexagonal bolts 9 at a constant interval.

To explain the function of this device, the loading platform interval is positioned, the fixing band 6 is fixed to the connecting rod 3 on the front side of the loading platform end beam 11 with special bolts 7, and the ring plate 5 and the holding plate 4 are arranged on the front side. When these are fastened using collars 8, bolts 9, etc., the fixing band 6 becomes a stopper for the connecting rod 3 in the front-back direction with respect to the loading platform. The forward load of the connecting rod 3 is transmitted from the fixing band 6 to the holding plate 4 via the ring plate 5.
The load transmitted to the holding plate 4 is transmitted to the trailer loading platform 1 by the hexagonal bolt 9. The rearward load of the connecting rod 3 is directly transmitted from the fixing band 6 to the platform end beam 11.

However, there is a fitting gap between the connecting rod 3 and the platform end beam 11 on the swing of the connecting rod 3, that is, on the left and right and up and down sides, so that the connecting rod can freely move up and down and left and right. Correspondingly, a gap is also provided between the ring plate 5 and the connecting rod 3.

Therefore, in this locking device, the connecting rod 3 can be expanded or contracted to a required length to perform the load platform spacing positioning and locking functions without any trouble.

E. Effects of the present invention As is clear from the above explanation, the main effects of the present invention can be summarized as follows.

a The loading platform spacing can be adjusted at any position by setting the fixing band, allowing for efficient travel.

b The fixed band has a structure that shares the traction load, but does not share the horizontal and vertical loads.

c. The locking device is made up of individual parts, which can be made into strong members suitable for the purpose, and
It is easy to operate and has a rational structure.

[Brief explanation of the drawing]

The attached drawings show an embodiment of the present invention. Figure 1 is a plan view explaining the main parts of the present invention and the relationship between the loading platform, and
The figure is a side view of Figure 1, Figure 3 is a diagram illustrating the relationship between the lock device mounting part and the loading platform interval, and Figure 4 A,
B is a side view (a) showing a lock device mounting portion partially in section, and (b) a vertical cross-sectional front view thereof. FIG. 5 is an exploded perspective view of the lock device section. 1... Trailer bed, 2... Tractor, 3
...Traction connecting rod, 4...Lock device holding plate, 5...
...Link plate (spacer), 6...Connection rod fixing band,
7...Special bolt with handle, 8...Color,
9...Hexagonal bolt, 10...Spring washer, 11...
Loading platform end beam (front), 12...hexagonal nut, 13...
connecting pin.

Claims (1)

[Scope of utility model registration request] In a device that is equipped with a traction connecting rod that connects the tractor with the tractor in the front-rear direction at the center under the floor of the loading platform, and the traction connecting rod is supported by the front and rear end beams of the loading platform, the traction connecting rod is attached to the front side of the front end beam of the loading platform through which the traction connecting rod passes through. Equipped with a fixing band for the connecting rod, a holding plate is placed on the front side of the fixing band via a ring, and the holding plate is fixed to the front end beam of the loading platform with a collar and bolts to maintain the fixing band in a fixed position. A traction connecting rod locking device characterized by: