JPH0442311Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a container crane, and particularly to a container crane that can automatically and accurately guide a carrier carrying a container to a cargo handling position under the crane.

[Prior Art] Generally, in a container crane for loading and unloading containers, a transport vehicle such as a trailer carrying the container is guided between the legs of the crane, and the container is clamped in order to transfer the container from the guided driver vehicle to the ship's side. It has a spreader which is adapted to be raised and lowered into the span between the legs from a trolley which moves horizontally seaward and landward along the boom and girder.

[Problems to be solved by the invention] By the way, in the case of conventional container cranes, a signal from the outside guides the transport vehicle to the cargo handling position of the spretsuda, which moves up and down, or stops the transport vehicle at the cargo handling position. For this purpose, marks such as poles were placed between the legs of the crane, and the transport vehicle was moved using these marks as targets.

Therefore, in the past, the transport vehicle had to be moved back and forth, left and right, in order to aim for these signals or landmarks, posing the problem of complicating the operation of the transport vehicle.

Therefore, the present invention was devised to effectively solve this problem, and it efficiently and accurately guides the transport vehicle carrying the container guided between the legs of the crane to the lowered cargo handling position of the Spretsda, which moves up and down. The purpose is to provide a container crane that can

[Means and effects for solving the problems] The present invention includes a boom and a girder for horizontally traveling and transporting a trolley having a spreader, and front legs and rear legs that support the boom and the girder. In a container crane that guides a transport vehicle such as a trailer into a span divided into front legs and rear legs, and lifts and lowers a spreader from the trolley to unload containers from the transport vehicle, at least one of the front legs and rear legs a trolley extending from one of the legs and supported so as to be freely movable together with the leg, for guiding and placing the transport vehicle; and a trolley for guiding the movement of the running wheels of the transport vehicle in one direction on the trolley; It is composed of a guide groove formed as a guide groove, and a positioning groove formed at the bottom of the guide groove in the front and rear in the traveling direction, and for regulating the movement of the traveling wheel by sinking the traveling wheel at the cargo handling position of the spreader, This makes it possible to easily guide and position the transport vehicle to the cargo handling position.

[Example] An example of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIG. 1, a container crane 1 for handling containers is installed on rails of a quay 2 so as to be movable.

As shown in FIGS. 1 and 2, this container crane 1 has front legs 4 and rear legs 5 connected to the lower part by a leg horizontal member 3. A transport vehicle 6 such as a trailer carrying a container A is guided within a span L formed by these legs 4 and 5.

In addition, a trolley 7 is installed on the top of the container crane 1.
is provided horizontally movably along the boom 8 and the girder 13, and the trolley 7 has a spreader 9 for clamping and handling the container A.
is installed so that it can be moved up and down.

In particular, a trolley 10 for guiding and placing the carrier 6 carrying the container A is provided.

As shown in FIGS. 3 and 4, this truck 10 extends from at least one of the legs 4, 5 within a span L defined by the front legs 4 and the rear legs 5. In this embodiment, a plate-shaped truck 10 is supported from a leg horizontal member 3 connecting the front legs 4 via a support member 11 and extends along the quay 2. Therefore, the truck 10 may be configured to extend into the span L by being supported by a leg horizontal member (not shown) that connects the rear legs 5.

Further, the truck 10 has wheels (or rollers) 10a on its bottom, and is configured to travel together with the front legs 4. That is, the truck 10 travels on the quay 2 as the crane 1 travels.

Further, as shown in FIG.
0b and a wheel positioning groove 12.

In particular, the wheel positioning groove 12 is composed of a guide groove 12a and a positioning groove 12b, and serves to regulate the running wheels 6a of the carrier vehicle 6, guide it to the lowered cargo handling position of the spreader 9, and stop it.

The guide groove 12a is formed of two long grooves so as to connect the inclined portion 10b of the truck 10, and has a groove width and a groove depth that can regulate the running wheels 6a of the carrier vehicle 6. That is, the guide groove 12a regulates the inclination of the carrier 6 containing the container A and the horizontal direction between the legs 4 and 5, and guides it in one direction so as to be substantially parallel to the leg horizontal member 3 or the trolley 10. It's summery.

The positioning groove 12b is provided at the bottom of the guide groove 12a in order to further restrict the transport vehicle 6 guided in one direction in the front-back direction and to lower and stop the traveling wheels 6a at the lowered cargo handling position of the spreader 9 that moves up and down. It consists of deep grooves formed in the front and rear of the running direction. Therefore, the positioning groove 12b is formed in the guide groove 12a depending on the number of running wheels 6a and the distance between the wheels.

As described above, the present invention guides the carrier 6 entering the span L defined by the front leg 4 and the rear leg 5 of the crane 1 onto the trolley 10, and guides it in one direction along the guide groove 12a. At the same time as attaching the positioning groove 1
By stopping at 2b, the container A can be positioned at the lowering cargo handling position of the spreader 9 that moves up and down.

When considering crane automation, positioning the container A in a predetermined position in this way facilitates crane travel and positioning of the spreader 9, supports crane automation, and improves the efficiency of cargo handling operations.

[Effects of the invention] In summary, according to the invention, a trolley for guiding and placing the transport vehicle is provided within the span defined by the front legs and the rear legs, and the movement of the running wheels of the transport vehicle is controlled in one direction on this trolley. A guide groove is formed to guide the vehicle, and a positioning groove is formed at the bottom of the guide groove to allow the traveling wheels to sink and restrict movement of the traveling wheels.This makes it possible to easily position the transport vehicle and to simplify the trolley. It can be achieved.

[Brief explanation of the drawing]

Figure 1 is a front view showing one embodiment of the present invention;
The figure is a view taken along the - line in Fig. 1, Fig. 3 is a front view showing the trolley and transport vehicle, and Fig. 4 is a - line view in Fig. 3.
5 is a view taken along the - line in FIG. 3. In the figure, 1 is a container crane, 4 is a front leg, 5 is a rear leg, 6 is a carrier, 7 is a trolley, 8 is a boom, 9
1 is a spreader, 10 is a cart, 12 is a wheel positioning groove, and A is a container.

Claims (1)

[Scope of utility model registration request] It is equipped with a boom and a girder that horizontally transport a trolley with a spreader, and front legs and rear legs that support these booms and girders, and guides a transport vehicle such as a trailer within a span divided by these front legs and rear legs. In the container crane that lifts and lowers the spreader from the trolley to unload containers from the transport vehicle, the container crane extends from at least one of the legs within a span defined by the front leg and the rear leg and can freely run together with the front leg and the rear leg. supported,
a trolley for guiding and placing the transport vehicle;
A guide groove is formed on the trolley to guide the movement of the running wheels of the transport vehicle in one direction, and a guide groove is formed at the bottom of the guide groove in the front and back of the running direction, so that the running wheels are lowered at the cargo handling position of the spretsuda. A container crane characterized by being equipped with a positioning groove for regulating the movement of traveling wheels.