JPH09315753A - Spreader - Google Patents

Abstract

PROBLEM TO BE SOLVED: To mitigate the impact against a spreader, and to prevent a container from being damaged by a TL pin by arranging a landing block incorporating a twist-lock in a spreader body in a vertically slidable manner, and internally providing a hydraulic damper above the twist-lock. SOLUTION: A landing block 6 is restorable downwardly not only by the self-weight, but also by the depressing force of a spring member 7. When a spreader 1 is landed, a twist-lock 2 is elevated through the landing block 6. The impact to a spreader body 3 is mitigated by a hydraulic damper 8 located thereabove. When landing is performed with the twist-lock 2 being shifted from the position of a corner pieces of a container, the twist-lock 2 itself is elevated to press up the hydraulic damper 8. Because the twist-lock 2 is pulled into the spreader body 3, a ceiling of the container is not damaged by the twist-lock 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spreader having a twist lock that engages with an upper corner metal part of a container in container handling.

[0002]

2. Description of the Related Art In a conventional spreader shock absorber, a spreader 11 is placed in a container (not shown) as shown in FIG.
The outer sleeve 21 rises against the elastic body 17 when it is landed on the floor, so that the impact of the spreader 11 is relieved. However, since the twist lock pin 12 does not rise, there is a problem that the twist lock pin 12 damages the ceiling of the container when the spreader 11 comes off the corner metal fittings of the container and lands on the floor.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object thereof is to reduce the impact on the spreader when the spreader is landed on the container. The object is to provide a spreader that is both scaleable and does not damage the container due to the twist lock pin.

[0004]

That is, a spreader according to a first aspect of the present invention comprises a spring member for urging a landing block incorporating a twist lock rotatable with respect to the spreader main body downward from the inside of the spreader main body. It is formed so as to be slidable up and down through the interposition and a hydraulic damper is provided above the twist lock.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. Like the conventional spreader 11, the spreader 1 according to the present invention is provided with the twist lock 2 rotatably in the direction of the arrow R with respect to the spreader body 3 (see FIG. 2).

The twist lock 2 is incorporated in the landing block 6. Further, since the landing block 6 is slidably arranged up and down via the spring member 7 that biases the spreader body 3 downward, the landing block 6 is
It is possible to return downward not only by its own weight but also by the pressing force of the spring member 7. Further, a hydraulic damper 8 is provided above the twist lock 2.

When the spreader 1 having the above-mentioned structure is landed, the twist lock 2 is raised via the landing block 6, and the impact on the spreader body 3 is mitigated by the hydraulic damper 8 located above. Also, when the twist lock 2 is displaced from the position of the corner metal fitting (not shown) of the container and lands on the floor, the twist lock 2 itself rises to push up the hydraulic damper 8 and the twist lock 2 is retracted into the spreader body 3. Therefore, the twist lock 2 does not damage the ceiling of the container.

[0008]

As described above, according to the spreader of the present invention, the twist lock is raised through the landing block when the spreader is landed, and the hydraulic damper can reduce the impact on the spreader body. Also, if the spreader's twist lock deviates from the container's corner hardware, the twist lock itself rises and pushes up the hydraulic damper to pull it into the spreader body, which may damage the container ceiling. It can be prevented.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a spreader according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a vertical sectional view of a conventional spreader.

[Explanation of symbols]

3 Spreader body 2 Twist lock 6 Floor block 7 Spring material 8 Hydraulic damper

Claims (1)

[Claims] 1. A flooring block incorporating a twist lock rotatable with respect to a spreader main body is arranged so as to be slidable up and down through a spring member urging downward from the inside of the spreader main body, and above the twist lock. Spreader with hydraulic damper installed inside.