A CONTAINER HANDLING SYSTEM AND APPARATUS TECHNICAL FIELD
[0001] The present invention relates to a container handling apparatus, an apparatus for the positioning of both a container, and the container handling apparatus for engagement of the container, and a system comprising the same.
BACKGROUND
[0002] The act of picking up an intermodal type bulk container with a crane suspended rotating tipping spreader (tippler) is not an easy one to effect, due to the lack of precise control a crane operator has over the position of the tippler. The task is further complicated by the fact that the standard mechanism for locking the tippler to the container requires precise alignment in order to function. By the time wind and uneven ground surfaces are taken into account, the degree of difficulty is significantly increased.
[0003] Certain objects and advantages of the present invention will become apparent from the following description, taken in connection with the accompanying drawings, wherein, by way of i llustration and example, an embodiment of the present invention is disclosed.
SUMMARY
[0004] According to a first aspect, there is provided a system for handling a container, the system comprising a container handling apparatus comprising externally directed impact absorbing means, and an apparatus for positioning a container (a guide apparatus) and the container handling apparatus, the guide apparatus comprising a base for supporting the container, the base comprising a pair of sides and a pair of ends, an upstanding side wall for at least one side of the base, an upstanding end wall for at least one end of the base, each wall extending well above any container positioned on the base, wherein in use, the container handling apparatus is guided by contact with the walls of the guide apparatus into a position in which it can engage with the container positioned on the base.
[0005] In one form, the container is an intermodal type container and the handling apparatus is a spreader.
[0006] In one form, the container is an intermodal type bulk container and the handling apparatus is a tipping spreader or tippler,
[0007] In a further aspect, the invention may be said to reside in an apparatus for the positioning of a container (a guide apparatus) and a container handling apparatus for engagement of the container by the container handling apparatus, the apparatus comprising a base for supporting the container, the base comprising a pair of sides and a pair of ends, an upstanding side wall for at least one side of the base, an upstanding end wall for at least one end of the base, each wall extending well above any container positioned on the base, and at least one outrigger assembly extending outward from the base on the side wall equipped side thereof, for stabilising the apparatus.
[0008] In one from, the base is elongate, and the sides of the base are lengthwise extending.
[0009] In one form, side walls only extend along a portion of the side of the base. In one form, this portion is at or near a corner of the base.
[0010] In one form, the apparatus comprises at least a pair of outrigger assemblies extending outward from the base on the side wall equipped side thereof.
[001 1] In one form, the apparatus further comprises at least a pair of outrigger assemblies extending outward from the base on the non-side wall equipped side thereof.
[0012] In one form, the or each outrigger comprises a ground engaging foot. This foot is extendable into ground engagement, and retractable clear of the ground. In this way, the feet can be employed to level the base.
[0013] In one form, the or each foot depends from a linear actuator which depends from the outrigger.
[0014] In one form, the apparatus comprises a power pack for powering the or each linear actuator. In an alternative, a manual jacking system may be employed.
[0015] In one form, the apparatus further comprises means for locating the container relative to the base.
[0016] In one form, this means positively engages the container.
[001 7] In one form, the' apparatus further comprises means for locating more than one size (or type) of container relative to the base. For instance, the base may comprise locating means for 20' and 40' ISO (shipping) containers.
[0018] In, one form, the locating means engage container corner fittings.
[0019] In one form, the locating means comprises pins for insertion into the container corner fittings.
[0020] According to a further aspect, there is provided a container handling apparatus comprising externally directed impact absorbing means for protecting the container handling apparatus from damage resulting from collisions with an apparatus for positioning the container handling apparatus for engagement with a container (or vice versa), at least.
[0021 ] In one form, the externally directed impact absorbing means depends from at least one exterior surface of the container handling apparatus.
[0022] In one form, the externally directed impact absorbing means comprise bumpers of resilient material. In one form, the resilient material is an elastomeric one, such as rubber.
[0023] In one form, externally directed impact absorbing means depend from the walls of the guide apparatus.
[0024] In one form, the externally directed impact absorbing means comprise springs.
[0025] A detailed description of one or more embodiments of the invention is provided below along with accompanying figures that illustrate by way of example the principles of the invention. While the invention is described in connection with such embodiments, it should be understood that the invention is not limited to any embodiment. On the contrary, the scope of the invention is limited only by the appended claims and the invention encompasses numerous alternatives, modifications and equivalents. For the purpose of example, numerous specific details are set forth in the following description in order to provide a thorough understanding of the present invention.
[0026] The present invention may be practiced according to the claims without some or all of these specific details. For the purpose of clarity, technical material that is known in the technical fields related to the invention has not been described in detail so that the present invention is not unnecessarily obscured.
BRIEF DESCRIPTION OF DRAWINGS
[0027] Embodiments of the present invention will be discussed with reference to the accompanying drawings wherein;
[0028] Figure 1 is a front view of an apparatus (guide apparatus) for the positioning of both a container, and a container handling apparatus for engagement of the container;
[0029] Figure 2 is a rear corner view of the guide apparatus of Figure 1 ;
[0030] Figure 3 is a front corner view of the guide apparatus of Figure 1 ;
[0031] Figure 4 is a detail view of a power pack for the guide apparatus;
[0032] Figure 5 is a detail view of an outrigger for the guide apparatus; ,
[0033] Figure 6 is a front corner view of the guide apparatus, a container, and a container handling apparatus;
[0034] Figure 7 is rear corner view of the guide apparatus of Figure 1 ; and
[0035] Figure 8 is a perspective view of the container handling apparatus of Figure 6 in isolation.
[0036] In the following description, like reference characters designate like or corresponding parts throughout the figures.
DESCRIPTION OF EMBODIMENTS
[0037] Referring now to Figure 6, there is shown an apparatus 1 (hereinafter 'guide apparatus') for the positioning of an intermodat container 200 and a container handling apparatus 100 (hereinafter 'handling apparatus') for engagement of the container 200 by the handling apparatus 100. Together, the guide apparatus 1 and the handling apparatus 100 form part of a container handling system.
[0038] Referring now to Figures 1 through 5, the guide apparatus 1 comprises an elongate base 2 for supporting the container 200, the base 2 comprising a pair of lengthwise extending sides 2a, and a pair of ends 2b, an upstanding side wall 4 for one side of the base 2, an upstanding end wall 6 for each end 2b of the base 2, so that the walls cooperate to form wall corners, and each wall 4 and 6 extends well above any container 200 positioned on the base.
[0039] The upstanding side wall 4 is divided into two spaced apart portions, each portion being located at a corner of the base 2.
[0040] Walls 4 and 6 can be straight (90 degrees) from the base 2 to the top, or the walls can start straight (90 degrees) and then at a point higher than top of container angle outward (up to 45 degrees) away from the container location. Moreover, walls 4 and 6 extend considerably higher than a container 200 so that these can capture the swinging handling apparatus 100.
[0041 ] Back supports 7 absorb excess shock associated with the increased weights of a tippler as compared with a standard container lifting spreader. Central shock absorbing legs are used to soften the impact loads on the levelling pads. These shock absorbing legs can have rubber/wood/spring type dampeners attached during operation.
[0042] The base 2 comprises means for locating the container 200 relative to the base 2 by positively engaging the container 200 with pins or spiggots 3 sized and shaped for insertion into container 'twistlock' points or corner fittings of the type found on intermodal containers.
[0043] Optionally, the guide apparatus 1 comprises more than one set of pins 3, for locating more than one size of container 200 relative to the base 2. For instance, the base 2 may comprise pins for locating 20' and 40' ISO (shipping) containers.
[0044] Alternatively, the guide apparatus 1 comprises more than one set of pins 3 for locating containers 200 of the same size in different positions, so that, for instance, the container handling apparatus 100 can be guided using one wall corner (between walls 4 and 6 at one end) in preference to the other.
[0045] The apparatus 1 further comprises an outrigger assembly 10 extending outward from a position at or near each corner of the base 2, for stabilising the apparatus 1.
[0046] Each outrigger assembly 10 comprises an outrigger arm 12, a linear actuator 20 (a hydraulic ram in this case) depending from an outer position of the outrigger arm 12, and a ground engaging foot 30 depending from a free end of the linear actuator 20. The feet 30 are connected to the linear actuator 20 via a ball joint, so as to compensate for uneven surfaces, and to improve load distribution.
[0047] This foot 30 is driven by extension of the actuator 20 toward the ground and into ground engagement, and retractable away from the ground by retraction of the linear actuator 20. In this way, the feet 30 can be employed to level the base 2.
[0048] The base 2 of the guide apparatus comprises a power pack 50 (hydraulic pump and motor) for powering all of the linear actuators 20, and a control system for the power pack 50. In one form this control system comprises means for sensing (such as a mercury tilt switch) whether the base 2 is level both longitudinally and transversely, and means for actuating the linear actuators (control valves, solenoids etc.) as required to level the base 2.
[0049] Without these levelling characteristics, the containers 200 are not level and the handling apparatus 100 can have difficulty interfacing with the container 200.
[0050] Referring now to Figure 6 and 8, it can be seen that the handling apparatus 100 comprises externally directed impact absorbing means for absorbing impacts resulting from collisions with the guide apparatus 1 at least. More particularly, the handling apparatus 100 is fitted with a plurality of heavy duty bumper elements 1 10 of, for example, an elastomeric material such as rubber. These bumper elements 1 10 are secured to external surfaces of the handling apparatus 100, including at or near or along edges or corners of external surfaces which are likely to be involved in impacts during normal use of the handling apparatus 100.
[0051] Preferably, these bumpers 1 10 are secured to the handling apparatus 100 by releasable means such as fasteners or clips, so that the bumper elements 1 10 can be replaced as required.
[0052] The base 2 of the guide apparatus 1 also comprises slots for receiving tines of a forklift, and lifting lugs or handling via a reach stacker; in this way the guide apparatus can be moved and positioned as required.
[0053] In use, a full container 200 is positioned on the pins of the base 2 using a lifting device such as a forklift, reach stacker, crane etc. The handling apparatus 100, which is suspended from a crane, is then carefully positioned between the walls 4 and 6, and guided into a wall corner formed between an end wall and a side wall of apparatus 1 , so that bumpers 1 10 fitted at or near this corner of the handling apparatus 100 bear against this wall corner. The handling apparatus 100 is then lowered, potentially bumping and dragging against the walls as it is lowered, until it comes to rest against the top of the container 200 in a position which is ideal for connection of the handling apparatus 100 with the container 200.
[0054] Pivotal to the success of the above described operation is the positioning of the walls 4 and 6 relative to the container position on the base 2, and particularly the spacing of the walls 4 and 6 from the base 2, as this will determine whether the handling apparatus 100 is correctly positioned for engagement with the container 200. The spacing of the walls 4 and 6 from the base 2 will be selected
to substantially match the extent of handling apparatus 100 (tippler) overhang relative to the container 200, and should take into account the additional overhang created by the bumpers 1 10.
[0055] The container 200 can then be lifted up and swung away from the guide apparatus 1 for emptying.
[0056] In cases where the handling apparatus 100 is a tippler, the container 200 is emptied by way of being upended into a hold of a ship.
[0057] The system and apparatus according to the present invention has been found to yield the following benefits or advantages: a. Quicker placement of tippler onto containers and improved efficiency of tippler operation; b. Significant reduction in tippler twist lock malfunctions; c. Reduction in damage to tippler. d. Reduction in damage to containers. e. Safer operation, as it eliminates the need for personnel on the ground guiding the tippler onto the container.
[0058] Throughout the specification and the claims that follow, unless the context requires otherwise, the words "comprise" and "include" and variations such as "comprising" and "including" will be understood to imply the inclusion of a stated integer or group of integers, but not the exclusion of any other integer or group of integers.
[0059] The reference to any prior art in this specification is not, and should not be taken as, an acknowledgement of any form of suggestion that such prior art forms part of the common general knowledge.
[0060] It will be appreciated by those skilled in the art that the invention is not restricted in its use to the particular application described. Neither is the present invention restricted in its preferred embodiment with regard to the particular elements and/or features described or depicted herein. It will be appreciated that the invention is not limited to the embodiment or embodiments disclosed, but is
capable of numerous rearrangements, modifications and substitutions without departing from the scope of the invention as set forth and defined by the following claims.
[0061 ] Please note that the following claims are provisional claims only, and are provided as examples of possible claims and are not intended to limit the scope of what may be claimed in any future patent applications based on the present application. Integers may be added to or omitted from the example claims at a later date so as to further define or re-define the invention.