KR20030031405A - Auto Locking Apparatus of Container for Trailer - Google Patents

Abstract

PURPOSE: An automatic locking device of a container for loading a trailer is provided to load efficiently the trailer to the container or separate and transfer a loaded container and to improve safety by preventing moving and separation caused by enlarging the fixing force of the container in traveling the trailer. CONSTITUTION: An automatic locking device of a container for loading a trailer is composed of a housing(10) symmetrized on the left and right side, an operating unit(20) symmetrized on the left and right side to connect to the inside of the housing, and an upper(30) and a lower locker(40) coupled to the center of the operating unit. The container is automatically locked or separated to the container by operations of the operating unit, the upper and the lower locker according to the tare of the container.

Description

Auto Locking Apparatus of Container for Trailer}

The present invention relates to a locking device for a container to be loaded and transported on a trailer. More specifically, the locker is operated by the weight of the container so that the container can be automatically connected and fixed to the trailer and can be released automatically. It is possible to improve the workability when loading the container into the trailer or separating and transporting the loaded container, and at the same time, to prevent the flow and departure due to the increase of the holding force of the container while the trailer is running. An automatic locking device for a container.

In general, a container used to package and transport various types of logistics in bulk is transported by a trailer or a ship. A trailer for transporting a container is provided with a locking device for fixing a loaded container and transported by ship. The container to be loaded is provided with a locking device for detachable connection at the corner connection of the container to be loaded as it is loaded on board.

The locking device for a container transported by the ship is a patent registration application No. 2002-30383 filed by the applicant of the present invention as a patent and utility model dated May 30, 2002 (name of the invention: automatic locking of the container for loading vessels) Apparatus) and Utility Model Registration Application No. 2002-16609 (designation name: automatic locking device for a container for loading a ship) and the like. Hereinafter, a locking device for a container transported by a trailer will be described.

The locking device is used as the relative displacement of the loaded container during transportation through the container is to be prevented, the conventional locking device is a lever in the upper frame (1) provided in the trailer, as shown in Figures 1a and 1b A plurality of lockers 2 are provided for locking or releasing action by the rotation and lifting operation of (3), and the driver locks the locker 2 in a state where the container 4 is mounted at a predetermined position of the upper frame 1. By operating the lever 3 of), the head portion 2 'provided at the top of the locker is inserted into the binding hole 5 formed in the bottom of the container and fastened.

In other words, the locking device integrally binds the trailer and the container loaded thereon to ensure safety during transportation of the trailer.

However, since the conventional locking device has to operate the lever manually in a state where the trailer is loaded, many drivers often operate without the locking operation because it is cumbersome, and forget the locking operation. There was also a case of eating and running, there was a problem that a large accident occurs because the container is separated from the trailer on the road or a sharp curve road when the road surface is bad while operating without the locking action.

Therefore, in order to solve the above problems, the applicant of the present invention, as a co-inventor, filed a patent application on January 27, 2000, and patented on March 21, 2002. Patent registration application No. 2000-4080 (Invention name: for trailer Automatic locking of the container). The automatic locking device is automatically locked and released by the weight of the container was able to solve the problem caused by the manual operation of the conventional driver, but the locking action to prevent the detachment of the trailer when driving on the uneven road. There is a problem that the head portion can be released by the shaking of the trailer. That is, there is a problem in that there is no fixing part that can fix it when the head part is locked, so that a container may be separated from the trailer while driving the trailer and cause a large accident.

The present invention has been made to improve the above-mentioned conventional problems, it is possible to improve the workability when loading the container to the trailer or separate transport of the loaded container and at the same time flow and departure due to the increase in the fixing force of the container when the trailer is running It is an object of the present invention to provide an automatic locking device for a trailer loading container that can improve the safety by preventing.

1A and 1B are schematic cross-sectional views showing a state before and after operation of a container locking device mounted on a conventional trailer.

Figure 2 is a perspective view showing an automatic locking device of the trailer loading container of the present invention

Figure 3 is an exploded perspective view showing an automatic locking device of the trailer loading container of the present invention

4 is an exploded front view showing an automatic locking device for a trailer loading container according to the present invention.

Figure 5a is a cross-sectional view showing an initial operating state of the automatic locking device of the trailer loading container of the present invention.

Figure 5b is a cross-sectional view showing a state in which the upper locking head of the automatic locking device of the trailer loading container of the present invention is locked to the corner casting of the container.

<Description of the symbols for the main parts of the drawings>

10 housing 11 seating surface

12: locking pin 15: insertion hole

20: operating port 21: protrusion

22: incision 23: upper locking groove

24: protruding jaw 30: upper rocker

31: upper locking head 31a: stopper guide hole

32, 42: rotary hole 33: slit groove

34: through hole 40: lower rocker

41: lower locking head 43: seating groove

44: protrusion 45: stopper

46: elastic spring 47: bushing

As a means for achieving the above object, the automatic locking device of the trailer loading container of the present invention,

A locking groove formed in the seating surface on which the protrusion of the operation tool is seated and a locking groove in which the rotary hole of the lower rocker is inserted, and a locking pin located in the slit groove of the upper rocker, and an insertion hole into which the spring and the ball of one side of the locking groove are inserted. Housings each provided,

It is formed to be movable up and down inside the housing by having an indentation formed so that the locking pin can enter the inner hollow portion, an upper locking groove into which the turning hole formed in the upper locker is inserted, and a protruding jaw contacting the corner casting of the container. Achievement,

It has a through hole through which the upper locking head and the long rod of the lower locker penetrate the corner casting of the container, and a slit groove into which a rotating hole inserted into the upper locking groove of the operating port and a locking pin formed on the upper surface of the housing are inserted and guided. An upper locker coupled to the central hollow portion of the operating tool,

The lower locking head, which locks at the bottom of the loading section of the trailer, has a seating groove for seating the ball located in the insertion hole of the housing, and a rotating hole formed with a projection. The upper spring is penetrated through the center of the operating hole after the elastic spring is coupled. The lower locker inserted into the hole is characterized in that the container loaded on the trailer can be automatically locked or released.

In addition, a stopper guide hole communicating with the through hole is formed in the upper center of the upper locking head of the automatic locking device for the trailer loading container of the present invention, and a stopper is further formed at the end of the long rod of the lower locker to lock the upper locker. When the stopper protrudes outward through the stopper guide hole, the upper locking head is pressed to prevent free rotation of the upper locking head.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a combined perspective view showing an automatic locking device of the trailer loading container of the present invention, Figure 3 is an exploded perspective view showing an automatic locking device of the trailer loading container of the present invention, Figure 4 is a trailer loading container of the present invention An exploded front view showing an automatic locking device of the present invention, as shown in the drawing, the automatic locking device for a trailer loading container according to the present invention includes a housing 10 and a housing 10 in which left and right sides are separated in a symmetrical shape. Similarly, the left and right sides are separated in a symmetrical shape, and the actuator 20 coupled to the inside of the housing 10, the upper locker 30 and the lower locker coupled to the center of the actuator 20. 40).

Referring to the configuration of the automatic locking device of the trailer loading container of the present invention configured as described above in more detail as follows.

The housing 10 is composed of a left housing 10a and a right housing 10b in which the left and right sides are separated in the same symmetrical shape by the cutting plane, and operate in approximately center portions of the left and right housings 10a and 10b, respectively. A seating surface 11 on which the protruding piece 21 of the sphere 20 is seated is formed, and a locking pin 12 is formed at the center of one side of the upper surface of the right housing 10b. An insertion opening 15 into which the spring 13 and the ball 14 are inserted is formed at one side of the lower side of the housing, that is, the engaging groove 11a.

In the above configuration, a space is formed in the upper portion of the seating surface 11 so that the protruding piece 21 of the operating tool 20 can move upward and downward after being seated on the seating surface 11.

In addition, the actuating tool 20 also has the left and right as the housing 10, the left side and the right side are separated in the same symmetrical shape by the cutting surface and coupled to the left operating tool 20a and the right operating tool inside the housing 10. 20b, the right operating hole 20b is formed with a cutout 22 so that the locking pin 12 of the housing 10 can enter the inner hollow of the operating hole 20, and the left side The actuating tool 20a is formed integrally without a cutout. In addition, upper locking grooves 23 into which the rotary holes 32 formed in the upper locker 30 are inserted are formed on the inner surfaces of the left and right operating holes, respectively. And protruding jaws 24 are formed on the outer side surfaces of the left and right operating tools, respectively, in contact with the corner casting of the container.

The lower locker 40 penetrating the center of the inner hollow portion of the operating port 20 has a lower locking head 41 and a rotary hole 42 inserted into the locking groove 11a formed at the lower end of the housing 10. It is integrally formed, and the rotary hole 42 is inserted into the insertion hole 15 of the housing 10 and the two seating grooves 43, which are seated by the spring 14 extending by the spring 13 and one A protrusion 44 is formed, and the elastic spring 46 and the bushing 47 are inserted into and coupled to the lower rocker 40. Long rods (not shown) are formed integrally coupled to the upper portion of the rotary hole 42 of the lower rocker 40. A stopper 45 protrudes integrally from the upper end surface of the long rod. Therefore, in the center of the bushing 47 inserted through the long rod is formed a hole of the shape that can pass through the stopper 45 protruding.

In the above configuration, the lower locking head 41 is composed of four protrusions 41a and a recess 41b between the protrusions so that the driver can easily rotate.

In the above configuration, the angle α between the two seating grooves 43 is an angle at which the protrusion 41a can be locked by the loading bottom of the trailer when the lower locking head 41 rotates (about 60 °). To have a degree).

Finally, the upper locker 30 which is located in the inner hollow portion of the operating hole 20, the upper locking head 31 and the rotary hole 32 is inserted into the upper locking groove 23 of the operating hole 20 Is formed integrally, the lower portion of the rotary hole 32 is formed with a slit groove 33 is inserted into the locking pin 12 formed on one side of the upper surface of the housing 10 is guided, the upper locker 30 In the center of the lower rocker 40 is formed a through hole 34 (shown in Figure 4) through which the stopper 45 and the long rod pass.

In the above configuration, the upper locking head 31 is formed with a stopper guide hole 31a through which the stopper 45 of the lower rocker 40 is guided, so that the stopper 45 of the lower rocker 40 is formed on the stopper. After being guided to the guide hole (31a), it protrudes outward from the upper locking head 31 to prevent any free rotation of the upper locking head in a state that is already locked.

In addition, in the above configuration, the slit groove 33 is formed obliquely at an angle of about 35 ° from the central axis of the upper locker 30, because of the locking pin 12 of the housing 10 and the slit groove. This interaction is such that the upper locking head 31 can rotate to lock or release at the corner casting of the container.

Next, the coupling relationship for the automatic locking device of the trailer loading container of the present invention having the above configuration will be described with reference to FIGS. 3 and 4.

As shown in the figure, first, the rotary hole 32 formed in the upper rocker 30 is inserted into the upper locking groove 23 of the operation hole 20, and then the stopper 45 and the long rod of the lower rocker 40 are inserted. Is inserted into the through hole 34 of the upper locker (30). At this time, the elastic rod 46 and the bushing 47 are inserted into the long rod of the lower locker 40 in order to be located at the lower portion of the operation port 20.

In addition, the rotary hole 42 of the lower locker 40 into which the stopper 45 is inserted into the through hole 34 of the upper locker 30 is inserted into and fixed to the locking groove 11a of the housing 10. do.

In the above state, the bolts 26 are inserted into the bolt holes 25 formed in the left and right operating holes 20a and 20b, respectively, and then the left and right operating holes are integrally coupled by fastening with a nut (not shown). .

Subsequently, the left and right housings 10a and 10b are coupled to each other. First, the protruding pieces 21 of the operation tool 20 are seated on the seating surface 11 of the housing 10, and the rotary hole of the lower locker 40 is provided. The seating groove 43 formed in the 42 is inserted into the insertion hole 15 formed at one lower side of the housing 10 to seat the ball 14 extending by the spring 13.

Subsequently, the bolts 17 are inserted into the bolt holes 16 formed in the left and right housings, respectively, and then fastened with nuts (not shown) to integrally couple the left and right housings 10a and 10b.

At this time, the locking pin 12 formed at one central portion of the upper surface of the right housing 10b is a slit of the upper locker 30 located in the hollow of the operating hole through the cutout 22 formed at the right operating hole 20b. It is in the state already fitted in the groove 33.

Hereinafter, the operation of the automatic locking device for a trailer loading container of the present invention having the above-described coupling relationship will be described.

Figure 5a is a cross-sectional view showing the initial operating state of the automatic locking device of the trailer loading container of the present invention, Figure 5b is a state in which the upper locking head of the automatic locking device of the trailer loading container of the present invention is locked to the corner casting of the container. As shown in the drawings, as shown in the drawing, the trailer loading surface bottom surface t of the trailer, that is, the trailer loading surface bottom surface t of the portion in which the corner casting c of the container is located, is first shown in FIG. As described above, the locking head 41 of the lower locker 40 is rotated to be fastened to prevent the automatic locking device of the present invention from being separated by the protrusion 41a.

At this time, the rotary hole 42 of the lower rocker is rotated, and the ball inserted into the seating groove 43 when the rotary hole 42 is rotated with the spring 13 in the insertion hole 15 of the housing 10 ( 14 is pushed out by the spring 13 to be seated. Accordingly, the rotation of the rotary sphere 42 is inhibited.

When the locking head 41 of the lower rocker 40 is locked and fixed to the trailer loading surface bottom t as described above, the container is loaded on the trailer loading surface t, which is a crane (not shown). The container is loaded on the bottom surface t of the trailer loading part after lifting the container.

At this time, the corner casting (c) of the container enters the upper locking head (31) already fixed to the trailer loading floor (t), and then the lower end surface of the corner casting (c) protrudes from the operating tool (20). The jaw 24 is caught, and the actuating tool 20 is moved downward while compressing the elastic spring 46 which is inserted into the lower locker 40 by the pressing load of the container.

At the same time, the locking pin 12 fixed to the upper surface of one side of the housing 10 is located at the lower end of the slit groove 33 of the upper locker 30, and at the same time as the movement of the operation tool 20, the upper locker As the 30 moves downward, the locking pin 12 moves along the slit groove 33 formed obliquely at an angle of 35 ° to be positioned at the top of the slit groove 33 of the upper rocker.

That is, since the locking pin 12 is located in the slit groove of the upper locker 30, the upper locker 30 moves upward while torsionally rotating.

Thus, the upper locking head 31 integrally formed on the upper locker is simultaneously rotated and locked to the corner casting c of the container (see FIG. 5B).

In addition to the above operation, the stopper 45 of the lower rocker 40 protrudes to the outside through the stopper guide hole 31a of the upper locking head 31, and then presses the upper locking head in a state in which it is already locked. It is to prevent the free rotation of the upper locking head. Accordingly, the free rotation of the upper locking head is prevented when the trailer runs on an irregular road surface, thereby preventing the trailer from falling off.

By the automatic locking device operation of the present invention described above, the container is firmly coupled and fixed to the loading bottom surface t of the trailer.

On the contrary, when separating and transporting the loaded container, the container loaded on the trailer is lifted using a crane or the like. Accordingly, since the load acting on the actuating tool 20 is removed, the actuating tool moved downward is moved upward by the spring force of the elastic spring 46, and at the same time, the slit groove of the upper locker 30 33) is torsionally rotated along the locking pin 12.

That is, the locking pin 12 located at the top of the slit groove 33 is located at the bottom of the slit groove.

Thus, the upper locking head 31 locked at the corner casting c of the container rotates and exits from the corner casting c, whereby the container is automatically separated from the loading bottom of the trailer.

As described above, the automatic locking device for a container for loading a trailer of the present invention is automatically locked and released by the weight of the container in the process of loading or unloading the container into the trailer, thereby loading or loading the container into the trailer. It is possible to improve the workability during separate transport of the finished container and at the same time prevent the flow and departure due to the increase of the holding force of the container during transportation of the trailer to improve the safety.

Claims (2)

A locking groove 11a which is formed under the seating surface 11 on which the protruding piece 21 of the operating tool 20 is seated and the seating surface 11, and into which the rotary hole 42 of the lower locker 40 is inserted; A housing having a locking pin 12 located in the slit groove 33 of the upper locker 30 and an insertion hole 15 into which the spring 13 and the ball 14 of one side of the locking groove 11a are inserted. 10) and, In the upper locking groove 23 and the corner casting (c) of the container into which the locking part 12 formed so that the locking pin 12 can enter the inner hollow part and the rotary hole 32 formed in the upper locker 30 are inserted. An actuating tool 20 having a protruding jaw 24 in contact therewith, the actuating tool 20 being movable up and down within the housing 10; Inserted into the through-hole 34 through which the long rods of the upper locking head 31 and the lower rocker 40 penetrate the corner casting c of the container, and into the upper locking groove 23 of the operating port 20. An upper locker having a slit groove 33 into which the rotating hole 32 and the locking pin 12 formed on the upper surface of the housing 10 are inserted and guided are coupled to the central hollow portion of the operating hole 20 ( 30) and, The seating groove 43 and the protrusion 44 on which the lower locking head 41 that locks on the loading surface bottom t of the trailer and the ball 14 positioned in the insertion hole 15 of the housing 10 are seated. And a lower locker 40 inserted into the through-hole 34 of the upper locker 30 through the center of the actuating hole 20 after the elastic spring 46 is coupled to the rotating hole 42 having a shape. Automatic locking device for a trailer loading container, characterized in that configuration. The stopper guide hole 31a communicating with the through hole 34 is formed in the upper center of the upper locking head 31, and the stopper 45 is formed at the end of the long rod of the lower locker 40. Is formed, the stopper 45 is protruded to the outside through the stopper guide hole (31a) during the locking operation of the upper locker 30 by pressing the upper locking head 31 to prevent free rotation of the upper locking head Automatic locking device for a trailer loading container, characterized in that.