JPH0353996Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an improvement of a cone lock related to container loading and securing technology, and in particular improves its workability.

[Conventional technology and its problems]

For example, when loading a large number of containers on a ship, there is a risk that if they are simply piled up, the cargo may collapse due to the shaking of the ship, so they are stacked between the first container and the floor, and above and below. Various metal fittings for positioning and securing are interposed between the containers.

A cone lock is a type of metal fitting that has a substantially rectangular cone rotatably attached to the upper and lower ends of the metal fitting body, and this cone is inserted into a cone socket provided at a corner of the container through an engagement hole (having a substantially rectangular opening). After insertion, it is configured so that it is rotated approximately 90 degrees and engaged with the engagement hole, which requires manual rotation of all the lock cones, which is time-consuming and requires two or three layers. When lashing down such containers, work must be done at heights, which poses risks such as falling accidents.

[Means for solving problems]

In view of the above points, the purpose of the present invention is to provide a cone lock that improves workability and allows workers to easily and safely secure containers without having to climb to high places. In order to achieve this purpose, in a cone lock in which a container equipped with a cone socket is fixedly placed on the floor or a lower container, a supporting plate extending horizontally is provided approximately in the vertical center, and a shaft hole penetrating vertically is installed. a casing having a mouth opening on the side surface of the support plate and communicating with the shaft hole; a shaft rotatably inserted into the shaft hole; and a shaft disposed above and below the casing, a pair of upper and lower cones that are formed into a substantially rectangular planar shape, are arranged obliquely to each other in a substantially X-shape when viewed from above, and are fixed to the shaft; and an edge of an engagement hole of the cone socket provided on the cone; a torsion slope that slides into contact with the cone to automatically rotate the cone; and an operating lever having a base end fixed to the shaft and a tip protruding outward from the mouth, and rotating the shaft by swinging in the horizontal direction. a spring that is elastically loaded between the casing and the shaft and elastically urges the shaft in one rotational direction until the operating lever reaches one swinging limit; and a first stopper means for releasably stopping the swinging of the operating lever toward the one swinging limit halfway there; a second stopper means for stopping the cone, and when the operating lever is at the stop position by the first stopper means, the pair of cones are each at a rotational position in which they cannot be inserted into or removed from the cone socket ( (see FIG. 6 in the embodiment described later), the operation lever 9
is at the one swing limit, the upper cone is in a rotational position where it can be inserted into and removed from the cone socket, and the lower cone is in a rotational position where it cannot be inserted into and removed from the cone socket ( 9), when the operating lever is between the stop position by the first stopper means and the stop position by the second stopper means 7, and
When the cone is in the stopped position by the stopper means 7, the lower cone is in a rotational position where it can be inserted into and removed from the cone socket, and the upper cone is in a rotational position where it cannot be inserted into and removed from the cone socket. (See Figures 10 and 11).

[Effect]

In other words, the cone lock of the present invention is such that the cone lock is attached to either the lower layer (including the floor) or the upper layer (including the first tier) of containers before loading the containers. Then, the cone with the sloped surface automatically rotates and engages with the engagement hole of the cone socket of the other container, and is moved back by the spring to complete the lashing operation,
Furthermore, since both the upper and lower cones are attached with angular displacement, both cones will not come off at the same time during the work, ensuring reliability and safety of the work.

〔Example〕

Next, one embodiment of the present invention will be described with reference to the drawings.

In FIGS. 1 to 5, reference numeral 1 denotes a casing provided with a support plate 2 extending in the horizontal direction, and has a shaft hole 3 penetrating in the vertical direction. Reference numeral 4 denotes a shaft rotatably inserted into the shaft hole 3, and a shaft is provided at each of the upper and lower ends protruding from the shaft hole 3.
It is made by integrally fixing cones 5 and 6, both of which are basically rectangular in plan. Of the two cones 5 and 6, the upper cone 5 is formed into a substantially flat plate shape, and when the lever 9, which will be described later, is at the initial movement position at an angle of 10 degrees, the upper cone 5 is aligned with the center line (1a, hereinafter referred to as In particular, it is called the center line and is arranged at an angle of 25 degrees clockwise with respect to the rotation angle reference (0 degrees). The lower cone 6 is formed into a substantially hexagonal shape by cutting the four corners of a rectangle when viewed from above, and is arranged diagonally in an X-shape with respect to the upper cone 5, as shown in FIG. 6, and has a pointed lower end. It has a substantially pyramidal shape, and has two twisted slopes 7, 7 formed at 180 degrees symmetrical positions on a part of the slope. These torsion slopes 7, 7 are connected to a cone socket 2 in which the cone lock is fixed to a corner of the container 21, as will be described later.
2, 24, the lower cone 6 is angularly displaced and pressed against the engagement holes 23, 25 of the cone sockets 22, 24, whereas the lower cone 6 is pressed against the edges of the engagement holes 23, 25. The cone 6 is rotated so as to slide in contact and eliminate the displacement, and the cone 6 is rotated counterclockwise with respect to the ridges 6b, 6b set on the slope of the lower cone 6 at a displacement of about 16 degrees from the center line 6a. The circumferential side (viewed from above) has a twisted shape that resembles a part of a screw. The ridges 6b, 6b and the pair of diagonal side surfaces 6c, 6c are substantially parallel to each other. The casing 1 including the support plate 2 includes:
An opening 8 is provided on the side surface of the lever 8, and the side edge of the opening is opened horizontally in a fan shape, and the tip of a lever 9 whose base end is fixed to the shaft 4 projects from the opening. This lever 9 is rotated 30 degrees clockwise and 35 degrees counterclockwise with respect to the center line 1a.
The shaft 4, the upper and lower cones 5 fixed to the shaft 4,
6 back and forth in the same range. As shown in FIGS. 7 and 8, the lever 9 has a small diameter portion 9a on the proximal end and a large diameter portion 9b on the distal end concentrically connected, and an annular stepped portion 9c is formed at the boundary. , the proximal end wall 10 of the cylindrical body 10 fitted over the stepped portion 9c and the lever 9.
A coil spring 11 is loaded between a and the cylinder 1.
0 in the proximal (centripetal) direction and
The outer end surface of the end wall 10a is pressed against the casing 1. On the corresponding contact surface of the casing 1, the mouth part 8
At the top and bottom of the opening, there are engaging step portions 1 that lock the lever 9 at an angle of 10 degrees from the center line 1a and stop rotation when the lever 9 is turned counterclockwise.
2 is formed, and when the lever 9 is rotated in the same direction beyond the stepped portion 12, the cylindrical body 10 is moved against the elasticity of the coil spring 11 by the protruding length l of the stepped portion 12 at the tip (outer side). (first stopper means). The large diameter portion 9b is slightly bent in the counterclockwise direction.
A protrusion 13 is fixed on the circumferential surface of the shaft 4 at a position substantially symmetrical to the lever 9, and reciprocates within the mouth portion 8 as the shaft 4 rotates. A through hole 14 is bored from the space inside the mouth 8 to the side wall of the casing 1, and a coil spring 16 is installed between the protrusion 13 and an end wall 15 attached to the opening of the through hole 14. As a result, the lever 9 is normally located at a 10 degree position where it abuts the engagement step 12, and by sliding the cylinder body 10 in the counterclockwise direction, the lever 9 can be rotated clockwise by 25 degrees by borrowing the tensile force of the spring 16. In this direction, the lever 9 can be swung by about 40 degrees against the spring 16, and in the latter direction, a pair of upper and lower engagement protrusions 1 are provided in the mouth 8 to restrict the swing of the lever 9.
7 is provided. That is, this engagement protrusion 17
can be freely projected and retracted into the upper and lower inner walls of the mouth part 8,
The lever 9 is elastically biased in the protruding direction by a spring means (not shown), and as shown in FIG.
It does not work when the lever is rotated 30 degrees clockwise from the initial position (10 degrees), but it engages when the lever is rotated to the maximum 40 degrees. It is configured to have a spring force sufficient to prevent the lever 9 from returning due to the elasticity of the coil spring 16 (second stopper means). Further, on the support plate 2 of the casing 1, an engagement bar 18 for engaging a later-described operating rod 19 used when operating the lever 9 is provided to protrude horizontally forward.

Next, a procedure for loading and securing a container using the above-mentioned cone lock will be explained. Figure 12 to 1
As shown in Fig. 4, four lower end cone sockets 22 and four upper end cone sockets 24 each having engagement holes 23 and 25 on three sides are fixed at the corners of the container 21. The cone locks are made into a set of four, connecting the cone sockets 22 for the lower ends of the four pairs of upper containers 21A and the cone sockets 24 for the upper ends of the lower containers 21B facing each other to connect the containers 21A, 2.
1B lash each other. A lower end cone socket 22 with which the cones 5 and 6 of the cone lock directly engage.
The lower surface engaging hole 23 and the upper surface engaging hole 25 of the upper end cone socket 24 are formed by aligning rectangles of the same shape and size in the same direction, and the cone lock extends in the longitudinal direction of both the engaging holes 23 and 25. Center line 23a, 2
It is attached so that the center line 1a mentioned above is aligned with the center line 5a. FIG. 6, FIG. 9 to FIG. 11 explain the operation and procedure.
When the center lines 1a of the cone locks are aligned, the upper and lower cones 5, 6 and the lever 9 are in the position shown in FIG. 6 in the normal state (the same arrangement is maintained before installation and even when the lock is not in operation after installation). The operations and procedures will be explained in bullet points below.

The upper cone 5 is inserted into the lower surface engagement hole 23 of the lower end cone socket 22 of the container 21A to be loaded onto the ship from the quay. That is, after pulling out the cylinder 10 from the initial position (normal position) of the lever 9 at an angle of 10 degrees, manually rotate it 25 degrees counterclockwise.
Align the center line 5a of the upper cone 5 with the center line 23a of the engagement hole 23, and insert the cone 5 into the engagement hole 23.
(Figure 6 → Figure 9).

With the lever inserted, return the lever 9 to the initial position to lock the upper cone 5 (FIG. 9→FIG. 6). That is, when the lever 9 is returned to the initial position, the cylinder 10 moves back toward the proximal end due to the elasticity of the coil spring 11 and engages with the engagement step 12 to prevent the lever 9 from rotating in the counterclockwise direction. When moving the container, the lever 9 hits an obstacle and swings on its own, causing the cone 5 to move.
It is possible to prevent problems such as when the cone lock comes off from the engagement hole 23 and the cone lock falls out of the container.

The container 21 becomes the upper layer as it is.
A is lowered onto the lower container 21B which has already been loaded onto the ship.

When the lower cone 6 begins to hit the edge of the upper surface engaging hole 25 of the upper end cone socket 24 of the lower container 21B, the cone 6 is guided by the torsion slope 7 and is pushed in while rotating (Fig. 6→Fig. Figure 10). The rotation angle for this operation is 30 degrees clockwise, as can be seen from the comparison of the two figures.

When the lower cone 6 is inserted into the engagement hole 25 and the upper and lower containers 21A and 21b are connected,
The cone 6 is automatically rotated by the tension of the coil spring 16, and the upper and lower containers 21A, 2
1b is completely locked to complete loading (Figure 10 → Figure 6).

The cone lock automatically rotates the lower cone 6 by using the automatic rotation of the cone 6 guided by the torsion slope 7 formed on the lower cone 6 and the tensile force of the coil spring 16 that acts to resist the rotation. In addition to eliminating the need to manually rotate the cone 6 each time, the upper container 21A is inserted into the lower end cone socket 22 with the upper container 21A slightly lifted as shown in FIG. By installing the cone lock, so-called work at heights is no longer necessary. Also axis 4
Since the upper and lower cones 5, 6 and the lever 9 are integrally molded through the The tip of the large diameter portion 9b and the tip of the engagement bar 18 protruding from the casing 1 are yellow;
They may be brightly colored with red or the like so that the distance (position) between them can be seen even from a distance. Although the planar shape of the upper cone 5 is rectangular in this embodiment, it can be made into a substantially hexagonal shape with the four corners of the rectangle cut off, similarly to the lower cone 6, as shown in FIG. In addition, the angles (values) shown in each figure, not just the same figure, are merely examples, and it is of course possible to change the angles without changing the function and operation of each cone 5, 6 and lever 9. For example, in the normal state (Fig. 4), the angle between the center line 6a of the lower cone 6 and the center line 1a is reduced by 2 degrees to 44 degrees, and the angle between the ridge 6b and the center line 1a is increased by 7 degrees to 37 degrees. (For example, change the angle between the center line 6a and the crest from 16 degrees to 7 degrees.) Also, when unloading the cone lock, perform the following steps.

The lever 9, which is in the initial position, is rotated by the operating stick 19 as shown in Fig. 15 to rotate it approximately 40 degrees (maximum) clockwise, and the lower cone 6 is rotated to the open position (Fig. 6→ 1st
Figure 1). The lever 9 engages with the engagement protrusion 17 and is prevented from returning, leaving the lower cone 6 in the open position. The operation stick 19 is
An engagement piece 19b formed by bending a pipe material into a triangular shape is fixed to the tip of a long gripping rod 19a, and the engagement piece 19b is attached to the side surface of the container 21 (and the cone sockets 22, 24) as shown in FIG. (A-A), the large diameter part 9b of the lever 9 protruding outward (up and down in the figure) and the engagement bar 18 are inserted together. Since the distance between the left and right diagonal frames of the joining piece 19b gradually decreases, the lever 9 is moved closer to the engagement bar 18.
oscillate horizontally so that it approaches .

The upper layer container 21A is lifted up, separated from the lower layer container 21B, and lowered to the quay. 11th
In this state shown in the figure, the upper cone 5 is still in the locked state and is suspended in the upper container 21A.

At the quay, the lever 9 is rotated to the open position of the upper cone 5, and the cone lock is removed from the upper container 21A (FIG. 11→FIG. 9).

[Effect of idea]

As explained above, the corn lock of this invention is
A shaft that reciprocates within an appropriate angular range is inserted into the casing, and cones are fixed at both upper and lower ends of the shaft,
At least one of the cones is provided with a torsion-shaped slope that comes into contact with the edge of the engagement hole of the cone socket and automatically rotates to insert the cone into the engagement hole, and a spring that causes the cone to return and rotate. This eliminates the need to manually rotate all the lock cones as in the past, which greatly improves work efficiency and safety.
In addition, the cone lock of the present invention can be used by arranging the upper and lower cones upside down compared to the above embodiment.
Various components can be added and changed to suit the actual work situation, such as changing the lever to a hanging string type used for electric lights, and splitting the casing into left and right halves to enable cleaning and replacement of parts such as spring means. We can provide practical and reasonable products. Furthermore, according to the present invention, the upper and lower cones are angularly displaced in an X-shape, so that even when one cone is in the release (open) position, the other cone is always in the engaged position, and both cones are rotated to release. Since the direction is reversed, when one cone is removed, the other cone is configured so that the rotation angle becomes deeper in the engagement direction (in the above example, it is rotated to the open position during the loading procedure). The upper cone 5 is configured so that it never opens until the unloading procedure. Therefore, the cone lock of the present invention has the additional feature of completely preventing accidental removal of the cone, resulting in excellent work safety. Furthermore, according to the present invention, since the spring loaded between the casing and the shaft always elastically biases the shaft until the operating lever reaches one swing limit, the operating lever can be moved to the first or second position. When released from the first stopper means, the shaft simultaneously moves to the next stop position (when released from the first stopper means, one swing limit,
When the shaft is released from the second stopper means, it automatically rotates to the stop position set by the first stopper means, thereby providing the effect that the shaft does not need to be rotated manually.

[Brief explanation of drawings]

Fig. 1 is a front view of a cone lock according to an embodiment of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a side view thereof, Fig. 4 is a bottom view thereof, and Fig. 5 is a cross-sectional view thereof; Figures 6, 9 to 11 are explanatory diagrams of the same operation, Figure 7 is a partially enlarged view of Figure 5, and Figure 8 is the
12 is an explanatory diagram of container loading work, FIG. 13 is a perspective view of the upper end cone socket, FIG. 14 is a perspective view of the lower end cone socket, and FIG. 15 is a front view of the operating lever. 16 are explanatory diagrams of the main parts of a cone lock according to another embodiment. 1...Casing, 2...Support plate, 4...Shaft,
5...Upper cone, 6...Lower cone, 7...Twisted slope, 8...Mouth, 9...Lever, 10...Cylinder, 11, 16...Coil spring, 17...
Engagement protrusion, 18... engagement bar, 19... operation stick.

Claims (1)

[Scope of claim for utility model registration] Container 2 equipped with cone sockets 22 and 24
1A on the floor or on the lower container 21B, there is a support plate 2 extending horizontally at approximately the center in the vertical direction.
a casing 1 provided with a shaft hole 3 penetrating in the vertical direction, and a mouth portion 8 that opens on the side surface of the support plate 2 and communicates with the shaft hole 3; The upper and lower shafts 4 are arranged on the upper and lower sides of the casing 1, have a substantially rectangular planar shape, are arranged obliquely to each other in a substantially X-shape when viewed from above, and are fixed to the shaft 4. a pair of cones 5 and 6; a torsion slope 7 provided on the cone 6 and sliding into contact with the edge of the engagement hole 25 of the cone socket 24 to automatically rotate the cone 6; a base end attached to the shaft 4; is fixed, and the tip is connected to the mouth part 8.
an operating lever 9 that projects outward from the casing 1 and rotates the shaft 4 by swinging in the horizontal direction; a spring 16 that elastically biases the operating lever 9 in one rotational direction until the swinging limit is reached, and a first stopper that releasably stops the swinging of the operating lever 9 toward the one swinging limit halfway through the swinging. means 10, 11, 12, and a second stopper means 17 for releasably stopping the swinging of the operating lever 9 toward the one swinging limit at the other swinging limit, The operation lever 9 is connected to the first stopper means 1
0, 11, and 12, the pair of cones 5 and 6 are in rotational positions in which they cannot be inserted into and removed from the cone sockets 22 and 24, respectively, and the operating lever 9 is at the swing limit of one of the cones 5 and 6. when the upper cone 5 is in the cone socket 2
2, and the lower cone 6 is in a rotational position where it cannot be inserted into or removed from the cone socket 24, and the operating lever 9 is in a rotational position where it cannot be inserted into or removed from the cone socket 24.
0, 11, 12 and the stop position by the second stopper means 17, and when the lower cone 6 is in the stop position by the second stopper means 17, the lower cone 6 is in the cone socket 24. It is in a rotational position that allows it to be inserted into and removed from the
and the upper cone 5 is connected to the cone socket 2.
2. A cone lock characterized by being in a rotational position where it cannot be inserted or removed with respect to 2.