Device for loading freight containers

Abstract

A connector (10) for loading a container (100) onto a vehicle having a flatbed trailer (40). The container (100) has a connection point (102) at its lower corner. The connector (10) includes a body (12) and a releasable attachment portion (14). The releasable attachment portion (14) is configured to enable the connector (10) to be releasably attached to the connection point (102). The connector (10) is releasably attachable at only one lower corner of the container (100) at a time.

Description

Technical Field

[0001] The present invention relates to an apparatus for loading a freight container, such as an apparatus for loading a freight container onto a tilt pallet or tilt trailer truck. Background Art

[0002] Freight or shipping containers (ship freight containers) are often used to transport goods by road on trucks, by rail on rail cars, or by sea on container ships.

[0003] Freight containers are usually built strong enough to withstand handling, transportation, intermodal transport and storage (often stacked together for transportation or storage). Freight containers are usually large reusable steel boxes used for intermodal transport. In the context of international shipping trade, "container" or "freight container" is almost equivalent to "intermodal container", that is, a container designed to be transferred from one mode of transport to another without unloading and reloading the contents of the container.

[0004] Such freight containers are generally of rectangular parallelepiped construction so that the containers can be stacked one on top of another or supported on the deck of a ship or on the pallet of a transport vehicle, such as a rail or road vehicle.

[0005] Freight containers are typically available in standard 20-foot (about 6.096 meters) or 40-foot (about 12.19 meters) lengths and have a door at at least one end to provide access to the interior of the container. Standard-sized containers are typically 8 feet (about 2.438 meters) wide and 8 feet 6 inches (about 2.591 meters) high (a "high cube" is 9 feet 6 inches (about 2.896 meters) high).

[0006] Corner fittings or slots are provided at the outer corners of each container for engagement by means of connecting devices to secure the container to the deck of a ship or to the pallet of a vehicle, or to each other. These corner fittings include holes on the underside and corners of the container for receiving rotating claws or lugs of the connecting devices, which can be rotated after being inserted into the holes to lock the container in place. Holes are also provided on the top, sides and ends of the container so that stacked containers or adjacent containers can be locked together in an end-to-end or side-by-side manner by similar connecting devices.

[0007] Special difficulties are encountered when a ground freight container is to be loaded onto a flatbed trailer or pallet of a road vehicle, but there is no crane, container handler or lift to lift the container onto the pallet. For this type of vehicle, the trailer or pallet (usually configured to be slidably mounted on the vehicle chassis) is tilted into a ramp position and moved into a position longitudinally aligned with and adjacent to one end of the container. The winch cable of a winch mounted at the center of the front end of the tilted pallet is coupled to the container to winch the container onto the pallet.

[0008] It often happens that one end of the container will push against the rear end of the pallet and get caught on it, preventing the container from being pulled onto the vehicle's pallet. The result is a greatly increased load on the winch, creating high tension in the cable, which can lead to catastrophic failure of the winch or cable. If the cable breaks, serious injury or even death can occur to people nearby (as they may be struck by the broken cable).

[0009] Australian Patent No. 2006200964 discloses an elongated solid drawbar for connecting transversely spaced angles at one end of a container. A winch cable is centrally attached to the drawbar, and the winch, cable and drawbar work together to pull the container onto a flatbed trailer.

[0010] Australian Patent No. 2012231771 discloses a similar elongated solid drawbar, which focuses on the reverse process of unloading a container from a flatbed trailer. When the container is ready to be unloaded from the flatbed trailer, the gravity acting on the container by tilting the pallet may not be sufficient to overcome the friction between the bottom of the container and the pallet. There is also a risk that the container may slide backwards off the pallet uncontrollably. Australian Patent No. 2012231771 further discloses a catapult mounted on a vehicle to assist in unloading a freight container from a flatbed trailer.

[0011] It has been recognised that attaching a solid drawbar to the lower corners of a container can be difficult. As the container is very heavy it may sink into soft soil, or the container may settle with such force that the end of the container digs into the ground, or the ground at the end of the container may be uneven. Obviously, although a solid drawbar provides a fixed central attachment point for a winch, it may be difficult to attach it to a container due to its fixed length and fixed spacing of the attachment points at both ends, coupled with the rigid construction of the drawbar.

[0012] Furthermore, such drawbars are heavy enough to require at least two persons to position them on the ground at the bottom of the container for safe operation, thereby increasing the risk of injury to the operator, or at least requiring more than one person and the additional costs associated therewith.

[0013] Furthermore, the solid drawbar needs to be stowed securely on the vehicle when heading out to site to load the container. Due to its length, such drawbars are often stowed on a flatbed trailer, thus taking up space on the flatbed trailer that might otherwise be used to load cargo.

[0014] References to prior art in this specification are for descriptive purposes only and are not to be taken as an admission that the prior art is part of the common general knowledge in Australia or elsewhere.

[0015] The present invention aims to improve one or more of the above problems, or at least provide an alternative solution. Summary of the invention

[0016] According to some embodiments, a connector for loading a container onto a vehicle having a flatbed trailer is provided. The container may have a connection point at a lower corner thereof. The connector may include a body and a releasable attachment portion configured to enable the connector to be releasably attached to the connection point. The connector may be releasably attached at only one lower corner of the container at a time.

[0017] According to some embodiments, the body comprises a releasable attachment portion.

[0018] According to some embodiments, the releasable attachment portion includes a protrusion configured to enable the connector to be releasably attached to the connection point.

[0019] According to some embodiments, the releasable attachment portion comprises an elongated portion.

[0020] According to some embodiments, the protrusion is operatively connected to the elongated portion.

[0021] According to some embodiments, the protrusion has a length in a primary direction that is greater than a length in a secondary direction.

[0022] According to some embodiments, the body defines a channel such that when the protrusion is inserted into the opening of the container connection point, the protrusion can be rotated within the connection point such that a wall portion of the connection point is positioned in the channel.

[0023] According to some embodiments, a channel is defined between the protrusion and a portion of the connector body.

[0024] According to some embodiments, the connector further comprises a locking device.

[0025] According to some embodiments, the locking device is movable relative to the body.

[0026] According to some embodiments, the locking device comprises a sliding lock or a sliding bolt.

[0027] According to some embodiments, the locking device includes a front portion configured to at least partially enter and retain the protrusion in the connection point until the locking device is released.

[0028] According to some embodiments, the locking device includes a tongue, a flange, a cam, or a lobe configured to be inserted into a portion of the connection point opening.

[0029] According to some embodiments, the front end portion includes a tongue, a flange, a cam or a lobe.

[0030] According to some embodiments, the locking device includes a shaft portion configured to be connected to the front end portion.

[0031] According to some embodiments, the locking device comprises a biasing member configured to bias the locking device towards the locked position.

[0032] According to some embodiments, the body of the connector includes a locking device retaining portion.

[0033] According to some embodiments, the locking device retaining portion defines a hole.

[0034] According to some embodiments, the locking device passes through the hole.

[0035] According to some embodiments, the locking device retaining portion comprises a groove. According to some embodiments, the locking device comprises a middle projection. According to some embodiments, the groove is configured to receive the middle projection to inhibit relative rotation between the body and the locking device.

[0036] According to some embodiments, the shaft portion includes a central protrusion.

[0037] According to some embodiments, the tongue, flange, cam or lobe of the locking device is configured to rotate within the connection point to lock the locking device until rotated in the opposite direction to a released position.

[0038] According to some embodiments, the locking device comprises a first shaft portion. According to some embodiments, the locking device comprises a second shaft portion. According to some embodiments, the first shaft portion is connected to the front end portion and extends away from the front end portion. According to some embodiments, the second shaft portion is connected to the front end portion and extends away from the front end portion.

[0039] According to some embodiments, the front end portion bridges the first shaft portion and the second shaft portion.

[0040] According to some embodiments, the first shaft portion and the second shaft portion are parallel.

[0041] According to some embodiments, the body of the connector includes a locking device retaining portion.

[0042] According to some embodiments, the locking device retaining portion comprises a first hole. According to some embodiments, the locking device retaining portion comprises a second hole. According to some embodiments, the first shaft portion extends through the first hole. According to some embodiments, the second shaft portion extends through the second hole.

[0043] According to some embodiments, the elongated portion, the first hole, the second hole, the first shaft portion, and the second shaft portion are parallel.

[0044] According to some embodiments, the body includes a first groove configured to receive the first shaft portion. According to some embodiments, the body includes a second groove configured to receive the second shaft portion.

[0045] According to some embodiments, the locking device comprises a handle portion.

[0046] According to some embodiments, the handle portion is configured to be connected to the shaft portion.

[0047] According to some embodiments, the handle portion extends between the first shaft portion and the second shaft portion.

[0048] According to some embodiments, a handle portion is provided at an end of each of the first shaft portion and the second shaft portion opposite the front end portion.

[0049] According to some embodiments, when the protrusion is received into the elongated opening of the connection point, rotation of the protrusion leaves an open portion in the opening, and the locking device is configured to at least partially fill this open portion to limit or prevent removal of the protrusion until the locking device is removed from the opening.

[0050] According to some embodiments, the connector may further include a body attachment portion configured to enable an elongated member to be connected to the connector. The elongated member may be a cable or a chain.

[0051] According to some embodiments, the attachment portion comprises a loop or an eye which is attached to or forms part of the body.

[0052] According to some embodiments, the body includes a retainer and the body attachment portion is configured to connect to the retainer.

[0053] According to some embodiments, the retainer is integrally formed with the body.

[0054] According to some embodiments, the retainer comprises a hole in the body.

[0055] According to some embodiments, the bore extends between the first shaft portion and the second shaft portion.

[0056] According to some embodiments, the attachment portion may be attached to the body by a pivot, allowing the attachment portion to be pivoted toward the body for stowage and extended outwardly to pull the container in use.

[0057] According to some embodiments, one or more of the body and the releasable attachment portion may be made of steel.

[0058] According to some embodiments, the body may be formed by integral casting, forging, or assembly, and / or the releasable attachment portion may be formed by integral casting, forging, or assembly.

[0059] According to some embodiments, the protrusion defines a first connection point contact surface configured to contact an inner surface of the connection point.

[0060] According to some embodiments, the connector further includes an external engagement portion configured to engage an outer surface of the connection point.

[0061] According to some embodiments, the outer engagement portion defines a second connection point contact surface configured to contact an outer surface of the connection point.

[0062] According to some embodiments, the area of ​​the second connection point contact surface is greater than the area of ​​the first connection point contact surface.

[0063] According to some embodiments, the outer engagement portion at least partially surrounds a front end portion of the locking device.

[0064] According to some embodiments, a channel is defined between the protrusion and the outer engagement portion.

[0065] According to some embodiments, the connector further comprises an axial stopper configured to inhibit movement of the locking device in the axial direction.

[0066] According to some embodiments, the axial stop is detachably connected to a portion of the body.

[0067] According to some embodiments, the axial stop is integrally formed with the body.

[0068] According to some embodiments, the axial stop is located on a side of the body opposite to the protrusion.

[0069] According to some embodiments, an apparatus may include the above-described connector, a second connector configured to be connected to a container, and a flexible elongated member configured to connect the two connectors.

[0070] According to some embodiments, the flexible elongated member may include a cable or a chain, or a combination of a cable and a chain.

[0071] According to some embodiments, the flexible elongated member may be directly or indirectly connected to a winch, and the container may be towed onto the flatbed of the vehicle by force applied to the flexible elongated member and the connector.

[0072] According to some embodiments, both the connector and the second connector are manual such that the connector includes a portion of a releasable connection mechanism that rotates in a first direction to connect the connector to the container, and the second connector includes another portion of the releasable connection mechanism that rotates in a second direction opposite to the first direction.

[0073] According to some embodiments, a method of loading a container onto a truck flatbed or pallet is provided. The method may include the following steps: attaching a connector of the aforementioned device to a first connection point located at a corresponding lower corner of one end of the container; attaching a second connector of the aforementioned device to a second connection point at another lower corner of the same end; providing a flexible elongated member for the connector and the second connector so that the connector and the second connector can be connected; providing a winch cable connected between a winch of the vehicle and the flexible elongated member; tilting the flatbed or pallet at a certain angle so that the lower edge of the flatbed or pallet engages under the lower end edge of the connector and the second connector and / or the container; and towing the container onto the flatbed or pallet by using the winch.

[0074] According to some embodiments, the inclination of the flatbed or pallet may be gradually reduced to a near horizontal position when the container is at least partially loaded onto the flatbed or pallet.

[0075] According to some embodiments, one or more of the connector and the second connector may be connected to the container by rotation.

[0076] According to some embodiments, the second connector may need to be rotated in a direction different from the direction in which the connector rotates to achieve releasable engagement with the container.

[0077] According to some embodiments, the locking device of the connector may include a portion designed to be inserted into the respective connection device to prevent the connector from rotating in the opposite direction until the locking device is released.

[0078] According to some embodiments, the connector, the second connector, and the elongated member may be provided together as a kit of parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0079] One or more embodiments of the present disclosure will be described below with reference to the accompanying drawings, wherein:

[0080] Figures 1A to 1E shows a perspective view of a connector according to some embodiments, the connector being configured to be at least partially inserted into an opening of a container to assist in loading the container onto a vehicle;

[0081] Figure 2 shows a front perspective view of the connector shown in FIG. 1 according to some embodiments, wherein the locking device is in a retracted state;

[0082] Figure 3 shows a front perspective view of the connector shown in FIG. 1 according to some embodiments, wherein the locking device is in an extended state;

[0083] Figure 4 A top view of an apparatus according to some embodiments is shown, the apparatus comprising two connectors as shown in FIG. 1 , each connector being connected to a corner of a freight container, and connected to each connector by an elongated member (e.g., a chain);

[0084] Figure 5 According to some embodiments Figure 4 a perspective view of the device shown;

[0085] Figure 6 shows a connection to Figure 4 A side view of a freight container of the apparatus shown, the apparatus being used to load the freight container onto a truck pallet;

[0086] Figure 7 shows a side perspective view of a connector according to another embodiment of some embodiments, wherein the locking device is in a retracted and locked state;

[0087] Figure 8 According to some embodiments Figure 7 a perspective view of the connector shown;

[0088] Fig. 9 According to some embodiments Figure 7 A perspective view of the connector shown with the locking device in unlocked, extended and locked positions;

[0089] Fig.10 shows a perspective view of a plurality of connectors connected together by elongated members in an alternative configuration according to some embodiments;

[0090] Fig.11 shows a perspective view of another connector according to some embodiments;

[0091] Fig.12 According to some embodiments Fig.11 Another perspective view of the connector shown;

[0092] Fig.13 According to some embodiments Fig.11 Another perspective view of the connector shown;

[0093] Fig.14 According to some embodiments Fig.11 a side view of the connector shown;

[0094] Fig.15 shows a perspective view of a connector body according to some embodiments;

[0095] Fig.16 shows a perspective view of a connector body according to some embodiments;

[0096] Fig.17 shows a perspective view of a connector body according to some embodiments;

[0097] Fig.18 shows a perspective view of another connector according to some embodiments;

[0098] Fig.19 According to some embodiments Fig.18 a side view of the connector shown;

[0099] Fig. 20 According to some embodiments Fig.18 Another perspective view of the connector shown;

[0100] Fig.21 shows a perspective view of another connector according to some embodiments; and

[0101] Fig. 22 According to some embodiments Fig.21 Another perspective view of the connector shown. DETAILED DESCRIPTION

[0102] It should be understood that each embodiment is described in detail, and the present invention should not be interpreted as limited to the features or elements of any particular embodiment. The present invention should not be interpreted as limited to any features or changes described in multiple embodiments.

[0103] Figures 1A to 1E A plurality of views of a connector 10 are shown. The connector 10 is used to move a container 100. For example, the connector 10 can be used to load or unload the container 100 onto a vehicle having a flatbed trailer 40. The container 100 is provided with connection points 102a, 102b. These connection points 102a, 102b can be located at lower corners 104a, 104b of the container 100. Specifically, the container 100 is provided with a first connection point 102a at a first lower corner 104a and a second connection point 102b at a second lower corner 104b.

[0104] Figure 4 and Figure 5An apparatus 11 is shown. The apparatus 11 may be referred to as a container moving system 11 and / or a system 11 for moving containers. The apparatus 11 comprises the above-mentioned connector 10. Specifically, the apparatus 11 comprises two connectors 10a, 10b. The connector 10a may be in the form of the connector 10; the connector 10b may also be in the form of the connector 10. When in use, one connector 10 is releasably attached to each corresponding connection point 102a, 102b of the lower corners 104a, 104b of the container 100. That is, each connector 10a, 10b is releasably attached to only one lower corner 104a, 104b of the container 100.

[0105] The connector 10 includes a body 12. The connector 10 includes a releasable attachment portion 14. The releasable attachment portion 14 may also be referred to as a releasable attachment mechanism. The releasable attachment portion 14 is configured to releasably attach the corresponding connector 10 to the corresponding connection point 102. In other words, the releasable attachment portion 14 is configured to enable the connector 10 to be releasably attached to the connection point 102. The releasable attachment portion 14 is connected to the body 12. In some embodiments, the releasable attachment portion 14 is integrally formed with the body 12. It can be said that the body 12 includes the releasable attachment portion 14.

[0106] The releasable attachment portion 14 includes an elongated member 15. The elongated member 15 can be referred to as an axis 15. The axis 15 extends radially outward from a longitudinal axis 15a. The axis 15 extends from a first axis end 17a to a second axis end 17b along a longitudinal direction 15b. The longitudinal direction 15b is parallel to the longitudinal axis 15a. In other words, the axis 15 extends along the longitudinal axis 15a. The axis 15 defines an axis outer dimension 17c, which is an outer dimension of the axis measured along a radial direction 17d of the axis 15. The axis 15 is connected to the body 12. The axis 15 can be directly connected to the body 12 (e.g., by a welding connection between the body 12 and the axis 15). The axis 15 can be considered as a part of the body 12.

[0107] The releasable attachment portion 14 includes a protrusion 16. In some embodiments, the protrusion 16 can be referred to as a connection point engagement portion. The protrusion 16 is located at one end of the shaft 15. In particular, the protrusion 16 is located at the second shaft end 17b. The protrusion 16 extends outward from the central portion 19. In some embodiments, the protrusion 16 extends radially outward from the central portion 19. In some embodiments, the shaft 15 (i.e., the elongated member 15) can be considered as a part of the protrusion 16. In other words, the protrusion 16 is considered to include the shaft 15 (i.e., the elongated member 15). The protrusion 16 is operatively connected to the elongated member 15. The protrusion 16 is configured to enable the connector 10 to be releasably attached to the connection point 102.

[0108] like Figure 1CAs shown, the protrusion 16 defines a first outer dimension 16a. The first outer dimension 16a is the dimension of the protrusion 16 measured in a first direction 16b. The first direction 16b is perpendicular to the longitudinal direction 15b of the shaft. The protrusion 16 defines a second outer dimension 16c. The second outer dimension 16c is the dimension of the protrusion 16 measured in a second direction 16d. The second direction 16d is perpendicular to the longitudinal direction 15b of the shaft. The second direction 16d is also perpendicular to the first direction 16b. The first outer dimension 16a is greater than the second outer dimension 16c. In other words, the length of the protrusion 16 in the main direction (first direction 16b) is longer than the length in the secondary direction (second direction 16d). The first outer dimension 16a is greater than the outer dimension 17c of the shaft. In particular, the first outer dimension 16a is greater than the maximum outer dimension 17c of the shaft. That is, the protrusion 16 extends radially outward beyond the outer surface of the shaft. In some embodiments, the second outer dimension 16c is also greater than the outer dimension 17c of the shaft.

[0109] The protrusions 16 are configured to releasably engage with corresponding connection points 102 .

[0110] The connector 10 includes a passage 18. The passage 18 is disposed between the body 12 of the connector 10 and the protrusion 16 of the releasable attachment portion 14. In other words, the body 12 defines the passage 18. The passage 18 is defined between the protrusion 16 and a portion of the body 12.

[0111] The connection point 102 includes a hole 106. The hole 106 extends from an outer surface portion of the connection point 102 to an inner surface portion of the connection point 102. The hole 106 defines a passage through the wall of the connection point 102 to the hollow interior volume of the connection point 102.

[0112] like Figure 1D and 1E As shown, when the protrusion 16 is in the first position (relative to the connection point 102), the size of the hole 106 allows the protrusion 16 to pass through the hole 106. Figure 2 and 3 As shown, when the protrusion 16 is in the second posture (relative to the connection point 102), the size of the hole 106 prevents the protrusion 16 from moving through the hole 106. Specifically, the hole 106 defines a first hole size 106a. The first hole size 106a is the size of the hole 106 measured in a first hole measurement direction 106b. The first hole measurement direction 106b can correspond to a first direction in which the protrusion 16 can be measured.

[0113] In particular, the first hole measurement direction 106b may correspond to a first direction when the protrusion 16 is in the first posture. The hole 106 further defines a second hole dimension 106c, which is a dimension of the hole 106 measured in the second hole measurement direction 106d. The second hole measurement direction 106d may correspond to a second direction in which the protrusion 16 may be measured. In particular, when the protrusion 16 is in the first posture, the second hole measurement direction 106d may correspond to a second direction. The second hole measurement direction 106d is perpendicular to the first hole measurement direction 106b.

[0114] First hole dimension 106a is greater than the first outer dimension of protrusion 16. Second hole dimension 106c is greater than the second outer dimension 16c of protrusion 16. In certain orientations, such as shown in FIG. 1 (i.e., a first attitude relative to connection point 102), protrusion 16 is configured to be insertable through hole 106.

[0115] 1 , the protrusion 16 may be inserted into the hole 106 of the associated connection point 102 of the container 100. Thus, the protrusion 16 may be received by the hollow interior volume 102c of the connection point 102. After insertion, the protrusion 16 of the connector 10 may be moved (translated or rotated) relative to the connection point 102 so that one wall portion 42 of the connection point 102 is located within the passage 18. Figure 2 and 3 The connector 10 is shown positioned so that the wall portion 42 of the connection point 102 is located within the channel 18 (i.e., the protrusion 16 is in the second attitude). Before rotation, the protrusion 16 (and the body 12) can be said to be in an initial state. After rotation, the protrusion 16 (and the body 12) can be said to be in an engaged state. Figure 2 and 3 The protrusion 16 is shown in an engaged state. When in the engaged state, when attempting to move the protrusion 16 outward through the hole 106 and away from the connection point 102, the protrusion 16 will contact the inner surface 102d of the connection point 102.

[0116] Preferably, the body 12 and the protrusion 16 rotate together. In other words, rotation of the body 12 causes a corresponding rotation of the protrusion 16. However, it should also be understood that the protrusion 16 can also be arranged to rotate relative to the body 12.

[0117] The connector 10 includes a locking device 20. The locking device 20 is configured to hold the protrusion 16 within the connection point 102. In particular, the locking device 20 is configured to hold the protrusion 16 within the connection point 102 when the protrusion 16 is in the engaged position. The locking device 20 is configured to at least partially enter to hold the protrusion 16 within the connection point 102 until the locking device 20 is released.

[0118] The locking device 20 is movable relative to the body 12. The locking device 20 is configured to selectively retain the protrusion 16 within the connection point 102. For example, once the protrusion 16 is rotated into engagement with the hole 106 to retain the connector 10 to the container 100, the locking device 20 can be activated to prevent the protrusion 16 (and therefore the connector 10) from being released from the container 100 until the locking device 20 is released and the protrusion 16 can be rotated back to the release position again to disengage the connector 10 from the container 100.

[0119] The connector 10 includes a locking device holding portion 24. The locking device holding portion 24 is configured to facilitate movement of the locking device 20. The locking device holding portion defines a hole. The locking device 20 passes through the hole.

[0120] The locking device 20 may include a shaft portion 22. The shaft portion 22 may also be referred to as a shaft. The shaft portion 22 is circular and elongated. The shaft portion 22 is arranged to slide within the retainer 24. The locking device 20 may include a sliding lock member or a sliding bolt 23 (as shown in Figures 1-3), and / or a convex angle (as shown in Figures 1-3). Figure 7-9 As shown), the cam is configured to be inserted into a portion of the hole 106 of the connection point 102.

[0121] The locking device 20 includes a front portion 25. The front portion 25 may also be referred to as the front end 25. The front portion 25 is configured to be received by the hole 106 of the connection point 102 to prevent the protrusion 16 from being released. The front portion 25 is configured to be connected to the shaft portion 22. Likewise, the shaft portion 22 is configured to be connected to the front portion 25.

[0122] The locking device 20 includes a tongue, a flange, a cam or a lobe 29. In the embodiment shown, the locking device 20 includes a lobe 29. In particular, the front end portion 25 includes a lobe 29 or the front end portion 25 is in the form of a lobe 29. Figure 7-9 The illustrated lobe 29 of the locking device 20 is configured to rotate within the connection point 102 to lock the locking device 20 in position until rotated in the opposite direction to a released position.

[0123] The rear end 26 of the locking device 20 may include a handle portion 28. In the illustrated embodiment, the handle portion 28 is integrally formed with the shaft portion 22. In some embodiments, the handle portion 28 is configured to be connected to the shaft portion 22. The handle portion 28 is located at an end of the shaft portion 22 opposite the front end portion 25.

[0124] like Figures 1A-1E, 2 and 3, in this embodiment, the handle portion 28 of the locking device 20 is moved forward by a pushing action to move the locking device 20 forward toward the protrusion 16. In particular, the front end 25 of the locking device 20 moves toward the protrusion 16. The front end 25 of the locking device 20 can be in the form of a rod, so that the front end 25 is rounded (such as Figures 1A-1E , 2 and 3).

[0125] In another embodiment, if Figure 7-9 As shown, the front end 25 of the locking device 20 includes a cam 29. The cam 29 can be attached to the shaft portion 22. The cam 29 and the shaft portion 22 can be integrally formed. Figure 7 and 8 As shown, one side of the convex corner 29 is flat. Fig. 9 As shown, the convex corner is curved on the side opposite to the flat side so that the curved surface and the flat surface meet at the vertex. It can therefore be said that the convex corner 29 forms a teardrop shape. The connection between the convex corner 29 and the front end 25 of the locking device 20 is such that when the handle portion 28 of the connector 10 is rotated, the convex corner 29 rotates accordingly in the same direction as the handle portion 28. The retainer 24 remains stationary while the locking device 20 is pushed through the hollow retainer 24. The locking device 20 may also have a stop 33, which abuts against the retainer 24 when the locking device 20 is pushed through the retainer 24, thereby preventing the locking device 20 from moving further forward if additional forward thrust is applied to the handle portion 28 (such as Fig. 9 shown).

[0126] like Fig. 9 As shown, in use, once the horn 29 is pushed forward toward the protrusion 16 (not shown, once the protrusion 16 enters the hole 106, the protrusion 16 is rotated by rotating the body 12), the horn 29 enters the hole 106 forward and is rotated using the handle portion 28 so that the flat side of the horn 29 abuts against the flat side of the protrusion 16. This inhibits the movement of the horn 29 and reduces the possibility of the horn 29 being withdrawn from the hole 106. This enables the horn 29 to fix the position of the entire device 11.

[0127] exist Figures 1A to 3 In the illustrated embodiment, the locking device includes a pair of protruding features 50A, 50B. The first protruding feature 50 is located on one side of the retainer 24. The second protruding feature 50 is offset from the first protruding feature 50 along the longitudinal direction 15b of the shaft 22. The second protruding feature 50 is located on the other side of the retainer 24. The first protruding feature 50A and the second protruding feature 50B both protrude outward from the shaft 22. The pair of protruding features 50A, 50B are configured to physically limit the longitudinal movement of the shaft 22. These features can reduce the possibility of the locking portion 20 accidentally disconnecting from the retainer 24.

[0128] exist Figure 7-9 In the illustrated embodiment, the body 12 also has a notch 21 at its edge. The locking device 20 has a protrusion 27 configured to be received by the notch 21. The protrusion 27 may be referred to as a protrusion feature. The protrusion 27 is a wedge-shaped protrusion. Figure 7 As shown, the protrusion 27 is configured to be received by the recess 21 to lock the locking device 20 when the locking device 20 and the handle portion 28 are in the retracted position.

[0129] According to one embodiment, in use, when the protrusion 16 is received in the elongated hole 106 of the connection point 102, rotation of the protrusion 16 leaves an open portion in the hole 106. The locking mechanism 20 is configured to at least partially fill this open portion to limit or prevent removal of the protrusion 16 until the locking mechanism 20 is removed from the hole 106.

[0130] The connector 10 may include a body attachment portion 30. The body attachment portion 30 may be used to attach the elongated member 108 to the connector 10. In other words, the body attachment portion 30 is configured to enable the elongated member 108 to be connected to the connector 10. The elongated member 108 may be a cable or chain or other accessory. The body attachment portion 30 may be a shackle and / or have a hole 31 to accommodate the elongated member 108 or its accessory. The body attachment portion 30 may be fixed by a stopper 32 attached to or forming part of the body 12, the stopper having, for example, a ring or eye 32a.

[0131] The body attachment portion 30 may be pivotally attached to the body 12, allowing the body attachment portion 30 to pivot toward the body 12 for loading and extend outward for moving or pulling the container 100 onto the flatbed 40. This hinged arrangement may allow the angle of the body attachment portion 30 relative to the body 12 to be adjusted / changed to accommodate different positions of the elongated member 108. The flatbed may include elongated rails extending along both sides of the flatbed.

[0132] The protrusion 16 defines a first connection point contact surface 43. The first connection point contact surface 43 is configured to contact the inner surface of the connection point 102. The connector 10 includes an external engagement portion 44. The external engagement portion 44 is configured to engage the outer surface of the connection point 102. In particular, the external engagement portion 44 defines a second connection portion contact surface 45. The second connection portion contact surface 45 is configured to contact the outer surface of the connection point 102. In particular, the second connection portion contact surface 45 is configured to contact the outer surface of the connection point 102 when the protrusion 16 is received in the connection point 102. The area of ​​the second connection point contact surface 45 is greater than the area of ​​the first connection point contact surface 43.

[0133] The connector body 12 and / or the releasable attachment portion 14 may be made of steel (eg, cast or forged) or assembled. The body 12 and / or the releasable attachment portion 14 may be components that are individually or jointly cast, forged, or assembled in one piece.

[0134] Figures 1A to 3 The connector 10 in FIG. 1 includes a tail portion 39 . Figures 7 to 9 The connector 10 in the embodiment also includes a tail portion 39. The tail portion 39 of each connector is located on the side of the connector 10 opposite to the corresponding releasable attachment portion 14. The tail portion 39 includes a planar tail portion surface 60. The tail portion surface 60 is perpendicular to the longitudinal axis of the body 12 of the connector 10.

[0135] It is difficult to fully align the flatbed trailer or pallet of a road vehicle with the container for loading. Therefore, it is common for the flatbed trailer or pallet of a road vehicle to be at a small angle relative to the longitudinal axis of the container when aligning the flatbed trailer or pallet of the road vehicle with the container. This angle may make it more difficult to load the container 100 onto the truck because the container 100 may get stuck on the rear ramp of the vehicle. The tail portion 39 of the connector 10 described here provides a surface that can be used to align the container with the road vehicle. Specifically, when reversing, the rear ramp of the road vehicle can be lowered to the ground and the operator of the vehicle can reverse it toward the container 100. When the connector 10 described here is connected to the lower corner of the container 100, the rear ramp will first contact the tail portion 39 of one of the two related lower corner connectors 10. Further reversing of the truck will exert a force on this tail portion 39, especially the tail portion surface 60. This force will be transmitted to the container 100 through the connector 10, so that the container 100 can be moved to align it with the vehicle. Once the other side of the rear ramp contacts the other connector 10, the container 100 is aligned with the longitudinal axis of the road vehicle.

[0136] Figures 11 to 14 Another connector 10 is shown in accordance with certain embodiments. Figures 11 to 14 One or more features of the connector 10 may be related to Figures 1A to 3 or Figures 7 to 9 One or more features of the connector 10 in FIG. 1 are similar or identical. It should be understood that if Figures 11 to 14 A feature of the connector 10 is Figures 1A to 3 or Figures 7 to 9 If a feature of the connector 10 is the same or similar, then Figures 11 to 14 The same reference number may be used in Figures 11 to 14 One or more features of the connector 10 in the embodiment may differ from Figures 1A to 3 or Figures 7 to 9 One or more features of the connector 10 in the embodiment of the present invention are described herein. A person skilled in the art may Figures 11 to 14 One or more features of the connector 10 and Figures 1A to 3 or Figures 7 to 9 One or more features of the connector 10 may be combined and / or interchanged (as long as such combination or interchange is appropriate). Similarly, those skilled in the art may Figures 1A to 3 or Figures 7 to 9 One or more features of the connector 10 and Figures 11 to 14 One or more features of the connector 10 may be combined and / or interchanged (as long as such combination or interchange is appropriate).

[0137] Figures 11 to 14 The connector 10 in the embodiment of the present invention comprises a body 12. The connector 10 comprises a releasable attachment portion 14. The releasable attachment portion 14 comprises an elongated portion 15. The elongated portion 15 may also be referred to as a shaft. The releasable attachment portion 14 comprises a protrusion 16. The protrusion 16 is located at the end of the elongated portion 15.

[0138] exist Figures 11 to 14 In the illustrated embodiment, the body 12 includes the releasable attachment portion 14. That is, the releasable attachment portion 14 is part of the body 12. Therefore, the elongated portion 15 and the protrusion 16 are both part of the body 12. In other words, the body 12, the elongated portion 15 and the protrusion 16 are integrally formed.

[0139] Figures 11 to 14 The connector 10 in the embodiment includes a channel 18 between the body 12 of the connector 10 and the protrusion 16 of the releasable attachment portion 14. In other words, the body 12 defines the channel 18. The channel 18 is defined between the protrusion 16 and a portion of the body 12.

[0140] The connector 10 includes a locking device 20. The locking device 20 is configured to retain the protrusion 16 within the connection point 102. The locking device 20 includes a front end portion 25. The front end portion 25 may also be referred to as the front end 25. The locking device 20 includes a shaft portion 22. The front end portion 25 is configured to be connected to the shaft portion 22. The locking device 20 includes a handle portion 28. The handle portion 28 is configured to be connected to the shaft 22.

[0141] The connector 10 includes a locking device holding portion 24. The locking device holding portion 24 is configured to facilitate movement of the locking device 20. The locking device holding portion 24 defines a hole. The locking device 20 passes through the hole.

[0142] The locking device retaining portion 24 includes a groove 35. Since the locking device retaining portion 24 is formed integrally with the body 12, it can be said that the groove 35 is a groove on the body 12. The locking device 20 includes a middle protrusion 36. The groove 35 is configured to receive the middle protrusion 36. In particular, the groove 35 is configured to receive the middle protrusion 36 when the connector 10 is locked to the connection point 102 to inhibit relative rotation between the body 12 and the locking device 20. The shaft portion 22 includes the middle protrusion 36.

[0143] Figures 11 to 14 The connector 10 in FIG. 1 includes a retainer 32. The retainer 32 defines a hole 34 extending through the body 12. The hole 34 is configured to enable a body attachment portion (not shown) to be connected to the body 12. The body attachment portion may be a shackle, and / or have a hole to accommodate an elongated member or its attachment.

[0144] The protrusion 16 defines a first connection point contact surface 43. The first connection point contact surface 43 is configured to contact the inner surface of the connection point 102. The connector 10 includes an external engagement portion 44. The external engagement portion 44 is configured to engage the outer surface of the connection point 102. In particular, the external engagement portion 44 defines a second connection portion contact surface 45. The second connection portion contact surface 45 is configured to contact the outer surface of the connection point 102. In particular, the second connection point contact surface 45 is configured to contact the outer surface of the connection point 102 when the protrusion 16 is received within the connection point 102. The area of ​​the second connection point contact surface 45 is greater than the area of ​​the first connection point contact surface 43.

[0145] The outer engagement portion 44 at least partially surrounds the front end portion 25 of the locking device 20. In the illustrated embodiment, the outer engagement portion 44 partially surrounds the front end portion 25 of the locking device 20. A channel 18 is defined between the protrusion 16 and the outer engagement portion 44.

[0146] Fig.15 Another embodiment of the body 12 of the connector 10 is shown in accordance with some embodiments. Fig.15 One or more features of the body 12 in the connector may be similar or identical to one or more features of the body 12 of other connectors described herein. Fig.15 If a feature of the body 12 in the connector is the same or similar to a feature of the body 12 of other connectors described herein, then Fig.15 The same reference number may be used in Fig.15 One or more features of the body 12 of the connector may be different from one or more features of the body 12 of other connectors described herein. A person skilled in the art may, where appropriate, Fig.15One or more features of the main body 12 of the connector described herein may be combined and / or interchanged with one or more features of the main body 12 of other connectors described herein. Similarly, those skilled in the art may combine and / or interchange one or more features of the main body 12 of other connectors described herein with one or more features of the main body 12 of other connectors described herein under appropriate circumstances. Fig.15 One or more features of the body 12 may be combined and / or interchanged.

[0147] Fig.15 The body 12 in FIG. 1 does not include a recess 35 in the locking device retaining portion 24 . Fig.15 The body 12 of the embodiment includes a thickened tail portion 39. In some embodiments, the tail portion 39 defines a corner. The tail portion 39 can be configured to inhibit axial movement of the locking device 20 when installed. The tail portion 39 is also configured to allow a road vehicle to apply force to the connector 10 to move the container when installed on the container 100. The tail portion 39 includes a tail portion surface 60.

[0148] Fig.16 A body 12 of another connector 10 is shown in accordance with certain embodiments. Fig.16 One or more features of the subject 12 in the embodiment may be similar or identical to one or more features of other subjects 12 described herein. Fig.16 If a feature of the subject 12 in the embodiment is the same as or similar to a feature of another subject 12 described herein, then Fig.16 The same reference number may be used in Fig.16 One or more features of the subject 12 in the embodiment may be different from one or more features of other subjects 12 described herein. Fig.16 One or more features of the subject 12 in the embodiment may be combined and / or interchanged with one or more features of other subjects 12 described herein. Similarly, those skilled in the art may combine and / or interchange one or more features of other subjects 12 described herein with one or more features of other subjects 12 described herein, where appropriate. Fig.16 One or more features of the body 12 may be combined and / or interchanged.

[0149] Fig.16 The main body 12 in the embodiment includes an axial stop 48. The axial stop 48 is located near the tail portion 39 of the main body 12. That is, the axial stop 48 is closer to the tail portion 39 than the protrusion 16. The axial stop 48 is configured to inhibit axial movement of the locking device 20. The axial stop 40 is detachably connected to the main body 12. In the example shown, the axial stop 48 includes a plurality of threaded holes. The main body 12 also includes threaded holes. Therefore, the axial stop 48 can be connected to the support of the main body 12 using screws. In some embodiments, the axial stop 48 can be formed integrally with the support of the main body 12.

[0150] Fig.16 The body 12 in the embodiment also includes a notch 21. The locking device 20 may include a protrusion configured to fit within the notch 21. Alternatively, the handle portion 28 of the locking device 20 may be configured to be received within the notch 21. When a portion of the locking device 20 is received within the notch 21, axial movement of the locking device 20 is inhibited. In this case, when the locking device 20 is in the unlocked configuration, axial movement is inhibited. The notch 21 is a depression on the body 12. The notch 21 is adjacent to the axial stop 48. That is, the notch 21 is closer to the tail portion 39 of the body 12 than the protrusion 16.

[0151] Fig.17 A body 12 of another connector 10 is shown in accordance with certain embodiments. Fig.17 One or more features of the subject 12 in the embodiment may be similar or identical to one or more features of other subjects 12 described herein. Fig.17 If a feature of the subject 12 in the embodiment is the same as or similar to a feature of another subject 12 described herein, then Fig.17 The same reference number may be used in Fig.17 One or more features of the subject 12 in the embodiment may be different from one or more features of other subjects 12 described herein. A person skilled in the art may, where appropriate, Fig.17 One or more features of the subject 12 in the embodiment may be combined and / or interchanged with one or more features of other subjects 12 described herein. Similarly, those skilled in the art may combine and / or interchange one or more features of other subjects 12 described herein with one or more features of other subjects 12 described herein, where appropriate. Fig.17 One or more features of the body 12 may be combined and / or interchanged.

[0152] Fig.17 The main body 12 in the embodiment includes an axial stop 48. In this case, the axial stop 48 is formed integrally with the seat of the main body 12. That is, the axial stop 48 is formed simultaneously with the seat of the main body 12, for example, simultaneously during the molding or machining manufacturing process.

[0153] Figures 18 to 20 Another connector 10 is shown in accordance with certain embodiments. Figures 18 to 20 One or more features of the connector 10 in the embodiment may be similar or identical to one or more features of other connectors 10 described herein. Figures 18 to 20 If a feature of the connector 10 is the same or similar to a feature of other connectors 10 described herein, then Figures 18 to 20 The same reference number may be used in Figures 18 to 20One or more features of the connector 10 in the embodiment may be different from one or more features of other connectors 10 described herein. A person skilled in the art may, where appropriate, Figures 18 to 20 One or more features of the connector 10 in the present invention may be combined and / or interchanged with one or more features of other connectors 10 described herein. Similarly, those skilled in the art may combine and / or interchange one or more features of other connectors 10 described herein with one or more features of other connectors 10 described herein, if appropriate. Figures 18 to 20 One or more features of the connector 10 may be combined and / or interchanged.

[0154] Figures 18 to 20 The connector 10 in the embodiment of the present invention comprises a body 12. The connector 10 comprises a releasable attachment portion 14. The releasable attachment portion 14 comprises an elongated portion 15. The elongated portion 15 may also be referred to as a shaft. The releasable attachment portion 14 comprises a protrusion 16. The protrusion 16 is located at the end of the elongated portion 15.

[0155] exist Figures 18 to 20 In the illustrated embodiment, the body 12 includes the releasable attachment portion 14. That is, the releasable attachment portion 14 is part of the body 12. Therefore, the elongated portion 15 and the protrusion 16 are both part of the body 12. In other words, the body 12, the elongated portion 15 and the protrusion 16 are integrally formed.

[0156] Figures 18 to 20 The connector 10 in the embodiment includes a channel 18. The channel 18 is located between the body 12 of the connector 10 and the protrusion 16 of the releasable attachment portion 14. In other words, the body 12 defines the channel 18. The channel 18 is defined by the protrusion 16 and a portion of the body 12.

[0157] The connector 10 includes a locking device 20. The locking device 20 is configured to retain the protrusion 16 within the connection point 102. The locking device 20 includes a front portion 25. The front portion 25 may also be referred to as a front end 25. The front portion 25 includes a base 25A. The front portion 25A includes a front protrusion 25B. The front protrusion 25B protrudes outward from the base 25A.

[0158] The locking device 20 includes a first shaft portion 22A. The first shaft portion 22A may also be referred to as a first shaft. The first shaft portion 22A is connected to a front end portion 25. The first shaft portion 22A extends away from the front end portion 25. The locking device 20 includes a second shaft portion 22B. The second shaft portion 22B may also be referred to as a second shaft. The second shaft portion 22B is connected to the front end portion 25. The second shaft portion 22B also extends away from the front end portion 25. The front end portion 25 bridges the first shaft portion 22A and the second shaft portion 22B. The first shaft portion 22A and the second shaft portion 22B are parallel.

[0159] The front protrusion 25B protrudes outward from the base 25A, away from the first shaft portion 22A and / or the second shaft portion 22B. The first shaft portion 22A extends away from the front protrusion 25B from its connection point with the front portion 25. The second shaft portion 22B also extends away from the front protrusion 25B from its connection point with the front portion 25.

[0160] The connector 10 includes a locking device holding portion 24. The locking device holding portion 24 is configured to facilitate movement of the locking device 20. The locking device holding portion 24 includes a first hole 50. The first hole 50 is a hole on the body 12. The first shaft portion 22A passes through the first hole 50. The locking device holding portion 24 includes a second hole 52. The second hole 52 is also a hole on the body 12. The second shaft portion 22B passes through the second hole 52. The elongated portion 15 of the connector 10, the first hole 50, the second hole 52, the first shaft portion 22A, and the second shaft portion 22B are all parallel.

[0161] The body 12 includes a first groove 54. Specifically, the locking device retaining portion 24 includes the first groove 54. The first groove 54 is configured to receive the first shaft portion 22A. The body 12 also includes a second groove 56. Likewise, the locking device retaining portion 24 includes the second groove 56. The second groove 56 is configured to receive the second shaft portion 22B.

[0162] The locking device 20 includes a handle portion 28. The handle portion 28 is U-shaped. The handle portion 28 extends between the first shaft portion 22A and the second shaft portion 22B. The handle portion 28 is located at an end of the first shaft portion 22A and the second shaft portion 22B opposite to the front end portion 25.

[0163] Figures 18 to 20 The connector 10 shown includes a retainer 32. The retainer 32 defines a hole 34 through the body 12. The hole 34 is configured to allow a body attachment portion (not shown) to be connected to the body 12. The body attachment portion can be a shackle and / or have a hole to accommodate an elongated member for connection. The retainer 32 is formed integrally with the body 12. The hole 34 extends between the first shaft portion 22A and the second shaft portion 22B. In other words, the first shaft portion 22A is located on opposite sides of the hole 34 as the second shaft portion 22B.

[0164] The protrusion 16 defines a first connection point contact surface 43. The first connection point contact surface 43 is configured to contact the inner surface of the connection point 102. The connector 10 includes an external engagement portion 44. The external engagement portion 44 is configured to engage the outer surface of the connection point 102. Specifically, the external engagement portion 44 defines a second connection portion contact surface 45. The second connection portion contact surface 45 is configured to contact the outer surface of the connection point 102. Specifically, the second connection portion contact surface 45 is configured to contact the outer surface of the connection point 102 when the protrusion 16 is received in the connection point 102. The area of ​​the second connection point contact surface 45 is greater than the area of ​​the first connection point contact surface 43. The channel 18 is defined by the space between the protrusion 16 and the external engagement portion 44.

[0165] Fig.21 and 22 Another connector 10 is shown in accordance with certain embodiments. Fig.21 and 22 One or more features of the connector 10 in the embodiment may be similar or identical to one or more features of other connectors 10 described herein. Fig.21 and 22 If a feature of the connector 10 is the same or similar to a feature of other connectors 10 described herein, then Fig.21 and 22 The same reference number may be used in Fig.21 and 22 One or more features of the connector 10 in the embodiment may be different from one or more features of other connectors 10 described herein. A person skilled in the art may, where appropriate, Fig.21 and 22 One or more features of the connector 10 in the present invention may be combined and / or interchanged with one or more features of other connectors 10 described herein. Similarly, those skilled in the art may combine and / or interchange one or more features of other connectors 10 described herein with one or more features of other connectors 10 described herein, if appropriate. Fig.21 and 22 One or more features of the connector 10 may be combined and / or interchanged.

[0166] Fig.21 and 22The connector 10 shown includes a recess 21. The recess 21 may be a recess 21 of one or more other connectors as described above. Specifically, the recess 21 is a recess 21 on the body 12. The recess 21 is configured to accommodate at least a portion of the handle portion 28 of the locking device 20. The connector 10 is configured so that rotating the locking device 20 about the longitudinal axis of the shaft portion 22 can rotate the handle portion 28 into and out of the recess 21. Therefore, when the handle portion 28 is received in the recess 21, the recess 21 can inhibit axial movement of the locking device 20. When the handle portion 28 is not received in the recess 21, axial movement of the locking device 20 is allowed.

[0167] Fig.21 and 22 The illustrated connector 10 includes a biasing member 58. The biasing member 58 is located between the front end portion 25 of the locking member 20 and a portion of the locking device retaining portion 24. The biasing member 58 contacts the front end portion 25 of the locking member 20. The biasing member 58 also contacts the locking device retaining portion 24. In other words, the biasing member 58 contacts the body 12. The biasing member 58 is configured to bias the locking device 20 in the axial direction. The biasing member 58 is configured to place the locking device 20 in the locked position. In other words, the biasing member 58 is configured to bias the front end portion 25 of the locking member 20 toward the protrusion 16. The biasing member 58 can also apply a rotational biasing force to the locking member 20. Specifically, the biasing member 58 can apply a clockwise or counterclockwise biasing force to the locking member 20.

[0168] like Figure 4 , 5 As shown in Figures 1 and 10, the device 11 includes a first connector 10a and a second connector 10b. The first connector 10a and / or the second connector 10b can be in the form of a connector 10 described herein. The first connector 10a and the second connector 10b can be engaged with the corresponding lower corner connection points 102a, 102b of the container 100, respectively. When in use, an elongated member 108 (such as a cable or chain, or a combination of a cable and a chain) connects the first connector 10a and the second connector 10b. The device 11 can be considered to include an elongated member 108. The elongated member 108 is flexible and can be directly or indirectly attached to a winch to tow the container 100 onto the flatbed trailer 40 of the vehicle by applying forces to the elongated member 108 and the connectors 10a, 10b attached to the spaced connection points 102a, 102b of the container 100, respectively.

[0169] exist Fig.10, the elongated member 108 is shown as passing through the hole 31 of the body attachment portion 30 of each connector 10a, 10b. It should be understood that in some embodiments, the elongated member may extend between a first end having a first hook and a second end having a second hook. The first hook may be configured to connect to the body attachment portion 30 of the first connector 10a. The second hook may be configured to connect to the body attachment portion 30 of the second connector 10b. In this way, the elongated member 108 can be pulled to apply force to each connector 10a, 10b, thereby moving the container 100 to which they are connected.

[0170] In some embodiments, the hook and the attachment portion 30 can be the same color. This can provide an indication to the operator which components should be connected together. The remainder of the connector 10 can be another color different from the color of the hook and the attachment portion 30. Similarly, the remainder of the elongated member 108 (i.e., the elongated member 108 excluding the hook) can be a color different from the color of the hook and the attachment portion 30.

[0171] The first connector 10a and the second connector 10b are preferably manually operable, i.e., right-handed or left-handed, with the first connector 10a comprising a portion of a releasable attachment portion 14 that rotates in a first direction to connect the connector 10 to the container 100, and the second connector 10b comprising another portion of such a releasable attachment portion 14 that rotates in a second direction opposite to the first direction. In one embodiment, the entire first connector 10a and / or the entire second connector 10b is rotated to connect to the container 100.

[0172] Alternatively, in another embodiment, a portion of the first connector 10 a and / or a portion of the second connector 10 b is rotated to be connected to the container 100 .

[0173] The method of loading the container 100 onto the flatbed of a truck or pallet 40 first includes attaching each connector 10a, 10b to first and second connection points 102a, 102b located at respective lower corners 104a, 104b of the ends of the freight container 100. Figure 4 and 5 As shown, a flexible elongated member 108 (e.g., a chain or cable) is then connected between the first and second connectors 10a, 10b. A winch cable is then connected between the winch of the vehicle and the flexible elongated member 108 to tilt the flatbed trailer or pallet 40 to an angle such that the lower edge of the flatbed trailer or pallet 40 engages below the lower end edge of the first and second connectors 10a, 10b and / or the container 100 (e.g., Figure 6As shown). In this way, the container 100 can be pulled onto the flatbed trailer or pallet 40 by using a winch.

[0174] When the container 100 is at least partially loaded onto the flatbed trailer or pallet 40, the horizontal inclination of the flatbed trailer or pallet 40 can be reduced. In addition, the method further includes that the first and / or second connectors 10a, 10b can be rotated to connect to the container 100.

[0175] In addition, the second connector 10b is rotated in a direction different from the rotation direction of the first connector 10a to releasably engage the container 100. Further, the method includes a device configured to insert a corresponding connection device 102 (the connection device 102 is not in Figure 7 , 8 9 and 10 ). This prevents or minimizes the reverse rotation of the connector 10 before the respective locking devices are released.

[0176] The first and second connectors 10a, 10b and the flexible elongate member (eg, a chain or cable) 108 may be provided as a kit of parts.

[0177] It should be understood that the connectors 10a, 10b may be separate from each other, ie not connected by the elongated member 108. The elongated member 108 may also remain attached to at least one of the connectors 10a, 10b. Each connector 10a, 10b may be easily operated by one person to load in and out of the vehicle.

[0178] It will be appreciated that one or more forms of the present invention advantageously provide a means of efficiently loading a freight container onto a vehicle tilt tray / flatbed.

[0179] It will be appreciated that one or more aspects of the invention may be used in environments where ground conditions are less than ideal, such as conditions of prolonged soft ground.

[0180] It will be appreciated that one or more forms of the invention can provide versatility of application across a range of freight containers of varying sizes.Elongated members such as chains or cables are versatile to assist in lifting freight containers from soft muddy conditions.

[0181] It will be appreciated that the connector is a compact device that is easy to use and store via the truck dog / storage box.

[0182] The connector allows the process for loading a freight container to reduce the risk of safety issues, such as: reducing walking on a flatbed trailer that has tilted or is tilting (risk reduction).

[0183] In the following claims and in the above description of the invention, unless the context requires otherwise due to explicit language or necessary meaning, the word "comprise" and variations such as "including" or "comprising" are used in an inclusive sense, i.e., indicating the presence of the stated features but not excluding the presence or addition of other features in various embodiments of the invention.

[0184] It should be understood that if any prior art publication is referred to herein, this reference does not constitute an admission that the publication forms part of the general knowledge in the art in Australia or any other country.

[0185] Those skilled in the art will appreciate that many modifications may be made without departing from the spirit and scope of the invention.

[0186]

[0187]

[0188]

Claims

1. A connector for loading a container onto a vehicle having a flatbed, the container having a connection point at a lower corner thereof, the connector comprising a body and a releasable attachment portion, the releasable attachment portion being configured to enable the connector to be releasably attached to the connection point, wherein: The connector may be releasably attached at only one lower corner of the container at a time.

2. The connector according to claim 1, wherein: The body includes the releasable attachment portion.

3. The connector according to claim 1 or 2, wherein: The releasable attachment portion includes a protrusion configured to enable the connector to be releasably attached to the connection point.

4. The connector according to claim 3, wherein: The releasable attachment portion includes an elongated portion; and the protrusion is operably connected to the elongated portion.

5. The connector according to claim 4, wherein: The protrusion has a length in the primary direction that is greater than a length in the secondary direction.

6. The connector according to any one of claims 3 to 5, wherein: The body defines a channel such that when the protrusion is inserted into the aperture of the connection point of the container, the protrusion can be rotated within the connection point such that a wall portion of the connection point is located within the channel.

7. The connector according to claim 6, wherein: The channel is defined between the protrusion and a portion of a body of the connector.

8. A connector according to any preceding claim, wherein: The connector also includes a locking device.

9. The connector according to claim 8, wherein: The locking device is movable relative to the body.

10. The connector according to claim 8 or claim 9, wherein: The locking means comprises a sliding lock member or a sliding bolt.

11. The connector according to any one of claims 8 to 10, wherein: The locking device includes a front portion configured to at least partially enter the protrusion and retain the protrusion in the connection point until the locking device is released.

12. The connector according to any one of claims 8 to 11, wherein: The locking device includes a tongue, flange, cam or lobe configured to be inserted into a portion of the hole of the connection point.

13. The connector according to claim 12 when dependent on claim 11, wherein: The front end portion includes the tongue, flange, cam or lobe.

14. The connector according to any one of claims 8 to 12, wherein: The locking device includes a shaft portion configured to be connected to the front end portion.

15. The connector according to claim 14, wherein: The locking device includes a biasing member configured to bias the locking device toward a locked position.

16. The connector according to any one of claims 1 to 15, wherein: The body of the connector includes a locking device retaining portion.

17. The connector according to claim 16 when dependent on claim 8, wherein: The locking device retaining portion defines a hole, and the locking device passes through the hole.

18. The connector according to claim 16 or 17, wherein: The locking device retaining portion includes a groove; the locking device includes an intermediate protrusion; and the groove is configured to accommodate the intermediate protrusion so that relative rotation between the body and the locking device is inhibited.

19. The connector according to claim 18 when dependent on claim 14, wherein: The shaft portion includes the central projection.

20. The connector according to claim 12 or any one of claims 13 to 19 when dependent on claim 12, wherein: The locking device's tongue, flange, cam or lobe is configured to rotate within the connection point to lock the locking device until reversely rotated to a released position.

21. The connector according to any one of claims 8 to 11, wherein: The locking device includes a first shaft portion and a second shaft portion; the first shaft portion is connected to the front end portion and extends away from the front end portion; And the second shaft portion is connected to the front end portion and extends away from the front end portion.

22. The connector according to claim 21, wherein The front end portion bridges the first shaft portion and the second shaft portion.

23. The connector according to claim 21 or 22, wherein: The first shaft portion and the second shaft portion are parallel.

24. The connector according to any one of claims 21 to 23, wherein: The body of the connector includes a locking device retaining portion.

25. The connector according to claim 24, wherein: The locking device retaining portion includes a first hole and a second hole; the first shaft portion extends through the first hole; and the second shaft portion extends through the second hole.

26. The connector of claim 25 when dependent on claim 4, wherein: The elongated portion, the first hole, the second hole, the first shaft portion, and the second shaft portion are all parallel.

27. The connector according to any one of claims 21 to 26, wherein: The body includes a first recess configured to receive the first shaft portion, and a second recess configured to receive the second shaft portion.

28. The connector according to any one of claims 8 to 27, wherein: The locking device includes a handle portion.

29. The connector of claim 28 when dependent on claim 14, wherein: The handle portion is configured to be coupled to the shaft portion.

30. The connector of claim 28 when dependent upon any one of claims 21 to 27, wherein: The handle portion extends between the first shaft portion and the second shaft portion.

31. The connector according to claim 30, wherein: The handle portion is located at an end of the first shaft portion and the second shaft portion opposite the front end portion.

32. A connector according to any one of claims 3 to 31, wherein: When the protrusion is received in the elongated hole of the connection point, rotation of the protrusion leaves an open portion of the hole, and the locking device is configured to at least partially fill the open portion to limit or prevent removal of the protrusion until the locking device is removed from the hole.

33. A connector according to any preceding claim, further comprising a body attachment portion configured to enable an elongate member to be connected to the connector, the elongate member being a cable or a chain.

34. The connector according to claim 33, wherein: The attachment portion comprises a loop or eye which is attached to or forms part of the body.

35. The connector according to claim 33 or 34, wherein: The body includes a retainer, and the body attachment portion is configured to be connected to the retainer.

36. The connector according to claim 35, wherein The retainer is integrally formed with the body.

37. A connector according to any one of claims 33 to 36, wherein: The retainer includes a hole in the body.

38. The connector of claim 37 when dependent on claim 21, wherein: The bore extends between the first shaft portion and the second shaft portion.

39. The connector according to claim 33 or 34, wherein: The attachment portion is pivotally connected to the body, allowing the attachment portion to pivot towards the body for loading and extend outwardly to pull the container in use.

40. A connector according to any preceding claim, wherein: One or more of the body and the releasable attachment portion are made of steel.

41. The connector according to claim 40, wherein The main body is integrally cast, forged or assembled, and / or the releasably attachable portion is integrally cast, forged or assembled.

42. A connector according to claim 4 or any one of claims 5 to 41 when dependent on claim 4, wherein: The protrusion defines a first connection point contact surface configured to contact an inner surface of the connection point.

43. A connector according to any one of claims 1 to 42, wherein: The connector includes an external engagement portion configured to engage an outer surface of the connection point.

44. The connector according to claim 43, wherein The outer engagement portion defines a second connection point contact surface configured to contact an outer surface of the connection point.

45. The connector of claim 44, wherein: The area of ​​the second connection point contact surface is greater than the area of ​​the first connection point contact surface.

46. ​​A connector according to any one of claims 43 to 45, wherein The outer engagement portion at least partially surrounds a front end portion of the locking device.

47. A connector according to any one of claims 43 to 46 when dependent on claim 4, wherein: The channel is defined between the protrusion and the outer engagement portion.

48. A connector according to claim 8 or any one of claims 9 to 47 when dependent on claim 8, wherein: The connector further includes an axial stop configured to inhibit movement of the locking device in an axial direction.

49. The connector according to claim 48, wherein The axial stop is detachably connected to a portion of the body.

50. The connector of claim 48, wherein: The axial stop is formed integrally with the body.

51. A connector according to any one of claims 48 to 50, wherein: The axial stop is located on a side of the body opposite to the protrusion.

52. An apparatus comprising: A connector according to any one of claims 1 to 51; a second connector configured to connect to a container; as well as A flexible elongated member is configured to connect the connector and the second connector.

53. The apparatus of claim 52, wherein: The flexible elongated member comprises a cable or a chain, or a combination of a cable and a chain.

54. Apparatus according to claim 52 or 53, wherein The flexible elongated member is directly or indirectly connected to a winch to pull the container onto a flatbed of a vehicle by force applied to the flexible elongated member and the connector.

55. The apparatus of any one of claims 52-54, wherein: The connector and the second connector are both manual such that the connector includes a portion of a releasable attachment portion that rotates in a first direction to connect the connector to the container, and the second connector includes another portion of the releasable attachment mechanism that rotates in a second direction opposite to the first direction.

56. A method of loading a container onto a truck bed or pallet, comprising the steps of: connecting a connector of an apparatus according to any one of claims 52 to 54 to a first connection point at a corresponding lower corner of one end of the container; connecting a second connector of the apparatus according to any one of claims 52 to 54 to a second connection point at another lower corner of the one end of the container; providing a flexible elongated member for the connector and the second connector so that the connector and the second connector are connected; a winch cable connected between a winch of the vehicle and the flexible elongated member; tilting the flatbed trailer or pallet at an angle so that the lower edge of the flatbed trailer or pallet engages below the lower end edge of the connector and the second connector and / or container; and The container is pulled onto the flatbed trailer or pallet by using the winch.

57. The method of claim 56, wherein: When the container is at least partially loaded onto the flatbed trailer or pallet, the inclination of the flatbed trailer or pallet is reduced to nearly horizontal.

58. The method of claim 57, wherein: One or more of the connector and the second connector are rotated to connect to the container.

59. The method of claim 58, wherein: The second connector is rotated in a direction different from the direction of rotation of the connector to releasably engage the container.

60. The method according to any one of claims 56 to 59, wherein: The locking device of the connector includes a portion configured to be inserted into each connecting device to prevent the connector from rotating in the opposite direction until the locking device is released.

61. Apparatus according to any one of claims 56 to 60, wherein: The connector, the second connector and the elongated member are provided as a kit of parts.

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