JP2005272144A - Yard chassis for marine container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a yard chassis for a marine container capable of loading the marine container of 20, 40 and 45 feet in common, by performing attaching-detaching work of a twist corn still in " an on-chassis state ", when loading and unloading the marine container on the yard chassis for the container by a crane or loading a cargo on a mother ship. <P>SOLUTION: This yard chassis has a front guide 10 fixed to the yard chassis front end, a front side guide 20 fixed to the front side end, a rear guide fixed to the rear end, and a rear side guide fixed to the rear side end. The yard chassis has respectively a space 30 for removing the twist corn 110 between the left end of the front guide 10 and a front end part of the front side guide 20, between the right end of the front guide 10 and the front end part of the front side guide 20, between the left end of the rear guide and a rear end part of the rear side guide, and between the right end of the rear guide and the rear end part of the rear side guide. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a marine container yard chassis.

  A conventional marine container yard chassis has twist locks and corner guides (commonly known as tulips) at its four corners. To load and unload marine containers from a ship to a trailer equipped with a container yard chassis using a crane, once the marine container is suspended at a height that can be reached by the operator, corner casting located at the lower corner of the marine container. After twisting and removing the twist cone inserted into the hole formed on the lower surface by hand, the maritime container is further suspended along the guide, and the corner casting hole is fitted into the convex twist lock. I am trying. In this way, work that has a high risk of accidents, such as putting a hand under a sea container while suspended in a crane and removing the twist cone, is performed when the twist cone has not been detached. This is because the twisted cone cannot be removed due to contact. The twist cone is used to connect and fix marine containers stacked up and down on the ship.

  In the conventional marine container yard chassis, since the corner guides are fixed to the four corners, the twist cone cannot be attached or detached before the marine container is lowered from the trailer or placed on the trailer. For this reason, the twist cone must be removed while the marine container is suspended in a level that is within reach.

  Thus, in the conventional trailer equipped with a marine container yard chassis, the marine container unloaded from the ship is loaded on the trailer after the twist cone is removed from the trailer side. In addition, the offshore containers to be loaded were loaded onto the ship after they were unloaded from the trailer and attached with a twist cone on the side of the trailer.

  The present invention has been made in view of the problems of such a conventional marine container yard chassis. When a marine container is loaded and unloaded onto a container yard chassis by a crane, or when a marine container is loaded onto a ship. In addition, we provide a marine container yard chassis that allows a twisted cone to be attached and removed while the marine container is placed on a trailer in an “on-chassis state”, and a marine container that can be used as a 20, 40, or 45-foot marine container. It is an object to provide a yard chassis for use.

Therefore, in the container yard chassis of the present invention, a marine container yard chassis for loading a marine container in which a twist cone is detachably inserted into a hole formed on a corner casting lower surface,
A pair of left and right front guides fixed to the front end of the yard chassis;
A pair of left and right front side guides fixed to the front end of the yard chassis;
A pair of left and right rear guides fixed to the rear end of the yard chassis;
A pair of left and right rear side guides fixed to the rear end of the yard chassis;
Between the left end of the front guide and the front end portion of the front side guide, between the right end of the front guide and the front end portion of the front side guide, the left end of the rear guide and the rear end of the rear side guide. A space for removing the twist cone is provided between the portions and between the right end of the rear guide and the rear end portion of the rear side guide.
Preferably, the height of the rear guide is lower than the height of the front guide so that the rear door of the marine container can be opened and closed, the front guide, the front side guide, the rear guide, and the rear portion. Preferably, the side guide has an inclined invitation surface, and the invitation surface is colored in a conspicuous color.
Another yard chassis for a marine container of the present invention is a yard chassis for a marine container for loading a marine container in which a twist cone is detachably inserted into a hole formed in a lower surface of a corner casting.
A guide having a space for removing a twisted cone of a 20 foot marine container;
A guide having space for removing a twisted cone of a 40 foot marine container;
A guide with space for removing the twisted cone of a 45 foot marine container,
Is provided.
More specifically, a pair of left and right front guides fixed to the front end of the yard chassis,
A pair of left and right front side guides fixed to the front end of the yard chassis;
A pair of left and right rear guides fixed to the rear end of the yard chassis;
A pair of left and right rear side guides fixed to the rear end of the yard chassis;
A pair of left and right front 20 'rear guides and a pair of left and right front 20' rear side guides disposed in front of the center of the yard chassis;
A pair of left and right rear 20 'front guides and a pair of left and right rear 20' front side guides disposed behind the center of the yard chassis;
A pair of left and right 40 'rear guides and a pair of left and right 40' rear side guides disposed at the rear of the yard chassis;
Between the left end of the front guide and the front end portion of the front side guide, between the right end of the front guide and the front end portion of the front side guide, the left end of the rear guide and the rear end of the rear side guide. Between the right end of the rear guide and the rear end of the rear side guide, between the rear guide for the front 20 ′ and the rear side guide for the front 20 ′, and between the front guide for the rear 20 ′ and the rear. A space for removing a twist cone is provided between the front side guide for 20 'and between the rear guide for 40' and the rear side guide for 40 '.
A center rear guide for the front 20 ′ is further disposed in the center of the left and right rear guides for the front 20 ′.
A central rear guide for 40 'is further disposed in the center of the left and right rear guides for 40',
The center rear guide for the front 20 ′ is disposed at a position offset rearward from the left and right rear guides for the front 20 ′,
The 40 ′ central rear guide is preferably disposed at a position offset backward from the left and right 40 ′ rear guides.
Further, a central front guide for the rear 20 ′ is further arranged at the center of the left and right rear 20 ′ front guides,
The central front guide for the rear 20 'is preferably disposed at a position offset forward from the front guides for the left and right rear 20'.
The front side guide for the front 20 ′ and the front side guide for the rear 20 ′ are rotatably attached to the yard chassis, and the rear side guide for 40 ′ is rotatably attached to the yard chassis. It is preferable.

  The yard chassis for marine containers according to the present invention is improved by the above-described container guide, so that even if the twist cone is not detached, the twist cone does not interfere with the container guide, and the marine container remains on the trailer. The twist cone can be removed and attached while in the “on-chassis state”.

  In this way, the lifted and loaded cargo can be detached and attached while the container is placed on the trailer.Therefore, the crane only needs to be operated once to unload the marine container, eliminating the work of detaching the cone on the trailer side. The work efficiency of unloading / loading improved. As seen in FIGS. 9-11, the average cycle time per container was 112.5 seconds for the old trailer (with a conventional maritime container yard chassis) (for the marine container of the present invention). The new trailer (with a yard chassis) could achieve 100.0 seconds (Figure 9).

  Comparing the average number of cargoes handled per hour, it was now possible to increase the number from 32 in the old trailer to 36 in the new trailer (Fig. 10). Compared with the average number of cargo handling per shift (8.5 hours) / gantry, the new trailer can carry 34 marine containers per shift (Fig. 11).

  In addition, another marine container yard chassis according to the present invention is mounted on the yard chassis because the rear guide has a lower height than the front guide and the rear door of the marine container can be opened and closed. After the cargo is unloaded from the marine container, the inside of the marine container can be cleaned while the marine container is placed on the yard chassis, and the marine container can be moved to a desired location with the rear door open for drying.

Embodiments of the present invention will be described in detail with reference to the drawings.
1A is a perspective view for explaining the relationship between corner casting and twist cone attachment, FIG. 1B is a front perspective view of a yard chassis for marine containers according to an embodiment of the present invention, and FIG. FIG. 3 is a plan view and a front view of the main part of the front part of the yard chassis for marine containers, FIG. 3 is a plan view and a front view of the main part of the rear part of the yard chassis for marine containers in the embodiment of the present invention, and FIG. FIG. 4B is a plan view of the rear portion of the yard chassis for marine containers of FIG. 3, and FIG.

  In FIG. 1A, reference numeral 100 denotes a marine container, and corner castings 101 are provided at the four corners of the marine container 100. A twist cone 110 is detachably inserted into a hole 102 formed in the lower surface of the corner casting 101.

  The twist cone 110 includes an insertion portion 111 and a lower seat 112. When the insertion portion 111 is inserted into the hole 102 and is twisted in a certain direction, the twist cone 110 is attached to the hole 102 and in the opposite direction. Can be removed by twisting.

  FIG. 1B shows a front portion of a yard chassis S for a marine container on which a marine container 100 in which the twist cone 110 is detachably inserted into a hole 102 formed in the lower surface of the corner casting 101 is loaded.

The front portion of the marine container yard chassis S includes a front guide 10 fixed to the front end of the yard chassis and a pair of left and right front side guides 20 fixed to the front end of the yard chassis. The front guide 10 is fixed to the stringers S ₁ of the yard chassis S, the front side guide 20 is fixed to the crossbeam S ₂ of the yard chassis S (see FIG. 2). In FIG. 1, a space 30 for removing the twist cone 110 is provided between the right end of the front guide 10 and the front end of the front side guide 20.

  The front guide 10 includes a guide portion 11 and a square pipe portion 12 each having an inclined guide surface, and both are fixed by welding or the like. The front side guide 20 includes a guide portion 21 and a post portion 22 each having an inclined invitation surface. The heights of the guide portion 11 of the front guide 10 and the guide portion 21 of the front side guide 20 are substantially the same.

As shown in FIG. 3, the rear portion of the marine container yard chassis S includes a rear guide 40 fixed to the rear end of the yard chassis and a pair of left and right rear side guides 50 fixed to the rear end of the yard chassis. The rear guide 40 is secured to the stringers S ₁ of the yard chassis S, the rear side guide 50 is fixed to the crossbeam S ₂ of the yard chassis S. A space 60 for removing the twist cone 110 is provided between the left end of the rear guide 40 and the rear end of the rear side guide 50.

  The rear guide 40 includes a guide part 41 and a square pipe part 42 each having an inclined invitation surface, and both are fixed by welding or the like. The rear side guide 50 includes a guide portion 51 and a post portion 52 each having an inclined invitation surface. And the height of the guide part 41 of the said rear guide 40 is made lower than the height of the guide part 51 of the said rear side guide 50, and the rear door of the said sea container 100 can be opened and closed.

  Similarly, between the left end of the front guide 10 and the front end portion of the front side guide 20 (FIG. 2A), and between the right end of the rear guide 40 and the rear end portion of the rear side guide 50, respectively. Spaces 30 and 60 for removing the twist cone are provided (see FIGS. 4A and 4B).

  The operation of operating the crane by coloring the inclined guiding surfaces of the front guide 10, the front side guide 20, the rear guide 40, and the rear side guide 50 with a conspicuous color (for example, yellow) to become a target. It is desirable for a person to easily suspend the maritime container 100 from the yard chassis S.

Next, another embodiment of the present invention will be described in detail with reference to FIGS.
5 is a plan view of a trailer equipped with a yard chassis for marine containers in another embodiment of the present invention, FIG. 6 is a front view of FIG. 5, FIG. 7 is a front view of FIG. 5, and FIG. FIG. The marine container chassis SS of FIG. 5 has a guide having a space for removing a twisted cone of a 20-foot marine container in the yard chassis and a 40-foot marine container so that the 20, 40, and 45-foot marine containers can be loaded together. A guide having a space for removing the twist cone of the container and a guide having a space for removing the twist cone of the 45 ft marine container are disposed.

  Specifically, a pair of left and right front guides 210 fixed to the front end of the yard chassis, a pair of left and right front side guides 220 fixed to the front end of the yard chassis, and a pair of left and right fixed to the rear end of the yard chassis. A rear guide 240 and a pair of left and right rear side guides 250 fixed to the rear end of the yard chassis are provided.

The front guide 210, the yard is fixed to the stringers SS ₁ of the chassis SS, the front side guide 220 is fixed to the crossbeam SS ₂ of the yard chassis S. In FIG. 5, between the left end of the (left) front guide 210 and the front end of the (left) front side guide 220, the right end of the (right) front guide 210 and the (right) front. A space 230 for removing the twist cone 110 is provided between the front end portions of the side guides 220. The forms of the front guide 210 and the front side guide 220 are substantially the same as those of the embodiment of FIG.

The rear guide 240 is fixed to the stringers SS ₁ of the yard chassis SS, the rear side guide 250 is fixed to the crossbeam SS ₂ of the yard chassis SS. Between the left end of the (left) rear guide 240 and the rear end of the (left) rear side guide 250, the right end of the (right) rear guide 240 and the (right) rear side guide 250 A space 260 for removing the twist cone 110 is provided between the rear ends. A center rear guide 242 is preferably provided in the center of the rear guide 240 at a position offset (about 50 mm) rearward from the rear guide 240. This is to prevent the 20-foot or 40-foot sea container from slipping when the trailer travels. The offset position is provided to prevent the 20-foot or 40-foot marine container from colliding with the 20-foot or 40-foot marine container when the container is loaded and damaging the 20-foot or 40-foot marine container. The forms of the rear guide 240 (the central rear guide 242) and the rear side guide 250 are substantially the same as the embodiment of FIG.

  Further, a pair of left and right front 20 'rear guides 270 and a pair of left and right front 20' rear side guides 275 are disposed near the front of the center of the yard chassis, and the front 20 'rear guide 270 and the front 20' A space 271 for removing the twist cone is provided between the rear side guides 275 for use.

  Also, a pair of left and right rear 20 'front guides 280 and a pair of left and right rear 20' front side guides 285 are disposed behind the center of the yard chassis, and the rear 20 'front guide 280 and the rear A space 281 for removing the twist cone is provided between the front side guides 285 for 20 '.

  A pair of left and right 40 'rear guides 290 and a pair of left and right 40' rear side guides 295 are disposed at the rear of the yard chassis. The 40 'rear guide 290 and the 40' rear side guide 295 There is a space 291 for removing the twist cone.

  In the center of the left and right front 20 'rear guides 270, a front 20' central rear guide 272 is disposed at a position offset (about 50 mm) rearward from the left and right front 20 'rear guides 270. . This is to prevent the 20-foot marine container from shifting when the trailer travels. The left and right front guides 270 for the front 20 ′ and the central rear guide 272 for the front 20 ′ are convex stoppers provided on the chassis, and are depressed when pressed from above.

  In the center of the left and right 40 'rear guides 290, a 40' central rear guide 292 is disposed at a position offset (about 50 mm) rearward from the left and right 40 'rear guides 290. This is to prevent the 40-foot marine container from shifting when the trailer travels. The left and right 40 'rear guides 290 and the 40' central rear guide 292 are convex stoppers provided on the chassis, and are depressed when pressed from above.

  In the center of the left and right rear 20 'front guide 280, a rear 20' central front guide 282 is disposed at a position offset forward (about 50 mm) from the left and right rear 20 'front guide 280. . This is to prevent the 20-foot marine container from shifting when the trailer travels. The left and right rear guides 280 for the rear 20 ′ and the central rear guide 282 for the rear 20 ′ are convex stoppers provided on the chassis, and are depressed when pressed from above.

  The front side guide 275 for the front 20 'and the front side guide 285 for the rear 20' are rotatably attached to the yard chassis. In FIG. 7, the rear side guide 275 for the front 20 ′ is rotated counterclockwise about the shaft 276, and the front side guide 285 for the rear 20 ′ is rotated clockwise about the shaft 286. Therefore, the lower part of the attachment for attaching / detaching the empty container on the forklift side used when loading or unloading the 40-foot or 45-foot marine container is prevented from hitting these side guides 275, 285 and avoiding interference.

  The 40 'rear side guide 295 is rotatably attached to the yard chassis. In FIG. 7, the 40 'rear side guide 295 can be rotated counterclockwise about a shaft 296 as required.

(A) is a perspective view explaining the attachment / detachment relationship of a corner casting and a twist cone, (B) is a front part perspective view of the yard chassis for marine containers in embodiment of this invention. It is the top view and front view of the front part principal part of the yard chassis for marine containers of FIG. It is the top view and front view of the rear part principal part of the yard chassis for marine containers in embodiment of this invention. (A) is a top view of the front part of the chassis for marine containers of FIG. 3, (B) is a top view of a rear part similarly. FIG. 5 is a plan view of a trailer provided with a marine container yard chassis according to another embodiment of the present invention. FIG. 6 is a front view of FIG. 5. FIG. 6 is a front view of FIG. 5. FIG. 6 is a rear view of FIG. 5. It is the graph which compared the amount of containers handled by the old and new trailers by the average cycle time per container. It is a graph comparing the amount of containers handled by old and new trailers by the average number of cargo handling per hour. It is a graph comparing the amount of containers handled by old and new trailers with the average number of cargoes handled per shift / gantry.

Explanation of symbols

10,210 Front guide 20,220 Front side guide 30,230 Space 40,240 Rear guide 50,250 Rear side guide 60,260 Space 100 Marine container 101 Corner casting 102 Hole 110 Twist cone 242 Central rear guide 270 Front 20 ' Rear guide 271 Space 272 Front rear 20 'central rear guide 275 Front 20' rear side guide 280 Rear 20 'front guide 281 Space 282 Rear 20' central front guide 285 Rear 20 'front side guide 290 40' Rear guide 291 Space 292 40 'Central rear guide 295 40' Rear side guide S, SS Maritime container yard chassis

Claims (9)

A marine container yard chassis for loading a marine container in which a twist cone is detachably inserted into a hole formed on a lower surface of a corner casting,
A pair of left and right front guides fixed to the front end of the yard chassis;
A pair of left and right front side guides fixed to the front end of the yard chassis;
A pair of left and right rear guides fixed to the rear end of the yard chassis;
A pair of left and right rear side guides fixed to the rear end of the yard chassis;
Between the left end of the front guide and the front end portion of the front side guide, between the right end of the front guide and the front end portion of the front side guide, the left end of the rear guide and the rear end of the rear side guide. A yard chassis for a marine container having spaces for removing twisted cones between each portion and between a right end of the rear guide and a rear end portion of the rear side guide. The yard chassis for a marine container according to claim 1, wherein a height of the rear guide is made lower than a height of the front guide, and a rear door of the marine container can be opened and closed. 2. The marine container according to claim 1, wherein the front guide, the front side guide, the rear guide, and the rear side guide include an inclined invitation surface, and the invitation surface is colored in a conspicuous color. For yard chassis. A yard chassis for a marine container for loading a marine container in which a twist cone is detachably inserted into a hole formed on a lower surface of a corner casting,
A guide having a space for removing a twisted cone of a 20 foot marine container;
A guide having space for removing a twisted cone of a 40 foot marine container;
A guide with space for removing the twisted cone of a 45 foot marine container,
A yard chassis for marine containers, characterized in that is provided. A marine container yard chassis for loading a marine container in which a twist cone is detachably inserted into a hole formed on a lower surface of a corner casting,
A pair of left and right front guides fixed to the front end of the yard chassis;
A pair of left and right front side guides fixed to the front end of the yard chassis;
A pair of left and right rear guides fixed to the rear end of the yard chassis;
A pair of left and right rear side guides fixed to the rear end of the yard chassis;
A pair of left and right front 20 'rear guides and a pair of left and right front 20' rear side guides disposed in front of the center of the yard chassis;
A pair of left and right rear 20 'front guides and a pair of left and right rear 20' front side guides disposed behind the center of the yard chassis;
A pair of left and right 40 'rear guides and a pair of left and right 40' rear side guides disposed at the rear of the yard chassis;
Between the left end of the front guide and the front end portion of the front side guide, between the right end of the front guide and the front end portion of the front side guide, the left end of the rear guide and the rear end of the rear side guide. Between the right end of the rear guide and the rear end of the rear side guide, between the rear guide for the front 20 ′ and the rear side guide for the front 20 ′, and between the front guide for the rear 20 ′ and the rear. A yard for a marine container having a space for removing a twist cone between the front side guide for 20 'and between the rear guide for 40' and the rear side guide for 40 '. Chassis. A central rear guide for the front 20 ′ is further disposed at the center of the left and right rear guides for the front 20 ′.
A central rear guide for 40 'is further disposed in the center of the left and right rear guides for 40',
The center rear guide for the front 20 ′ is disposed at a position offset rearward from the left and right rear guides for the front 20 ′,
The marine container yard chassis according to claim 5, wherein the 40 ′ central rear guide is disposed at a position offset rearward from the left and right 40 ′ rear guides. A central front guide for the rear 20 ′ is further arranged at the center of the left and right rear 20 ′ front guides,
The yard chassis for a marine container according to claim 6, wherein the central front guide for the rear 20 'is disposed at a position offset forward from the front guides for the left and right rear 20'. The yard chassis for marine containers according to claim 5, wherein the rear side guide for the front 20 'and the front side guide for the rear 20' are rotatably attached to the yard chassis. The yard chassis for marine containers according to claim 8, wherein the rear side guide for 40 'is rotatably attached to the yard chassis.

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