FI66330C - LYFTANORDNING AVSEDD FOER HANTERING AV CONTAINERS SAMT GRIPTAPP FOER CONTAINERS - Google Patents

Description

66330

Lifting equipment for container handling and container gripping spindle

Lyftanordning avsedd för hantering av containers samt griptapp för containers

The invention relates to a container lifting device for use in lifting containers according to both the Sealand and ISO standards, which lifting device comprises an upper lifting ring, the bearing housings of which are rotatably mounted gripping spindles having a shape and a fixed mutual distance in the lifting ring, and gripping spindles. can be locked in one position inside the top holes of either the Sealand or ISO containers and rotated by the gripping spindles in the locking position, and the gripping spindles having a center of rotation different from the center line of the Sealand top holes and the center of the ISO holes each center of rotation being adapted to be located substantially in the transverse plane set through the centerlines of the Sealand and ISO top holes.

The invention further relates to a gripping mandrel for use in lifting containers according to both Sealand and ISO standards, wherein the gripping mandrel has a gripping projection at one end and an arm portion as an extension thereof, the mandrel being intended to be mounted in its bearing housing and having a gripping projection in the mandrel. a delimiting substantially planar surface which acts as a locking surface, and the gripping mandrel is substantially symmetrical with respect to a central plane substantially parallel to the short sides of the gripping mandrel set through a center of rotation defined by its cylindrical shank portion.

With regard to the state of the art of the present invention, reference is made, by way of example, to FI patent No. 50867 and to SE public patent application No. 78 04829-5.

The above-mentioned cools show lifting equipment that is intended to be used for lifting containers that comply with both Sealand and ISO standards. It is known that the shape of the top holes of the corner boxes of containers according to these different standards and the distances between the center lines of the adjacent top holes are different in different standards.

2,66330

The said FI patent and SE application present some solutions for the purpose that containers with both the ISO standard and the Sealand standard can be grabbed and lifted with the same lifting devices and their gripping spindles. The above-mentioned object is achieved in the above-mentioned F1-pa-5 exam No. 50867 in such a way that the pivoting spindles of the lifting device are shaped so that in one position they can fit into upper holes according to either Sealand or ISO standard and then turned into a locking position inside the corner box and the spindles are provided with a pivot axis which is eccentrically displaced with respect to both the center of the 10 Sealand top holes and the center of the ISO top hole and further so that the axis of rotation of said pivot spindle. is positioned offset toward its second short page.

In practice, the lifting equipment and gripping spindles according to the above-mentioned F1 patent and the SE application have had a number of various drawbacks which the present invention is intended to eliminate.

The disadvantages of the lifting apparatus and the gripping mandrel according to F1 Patent No. 50867 are that the gripping spindles can be turned to the locking position in only one direction of rotation, because the gripping mandrel is asymmetrical and its axis of rotation is displaced towards the second short side of the mandrel. The above also causes the shape of the known gripping spindle in question to be quite complex and right- and left-handed spindles are required, resulting in relatively high manufacturing and storage costs. A further disadvantage of the known spindles mentioned is that in a certain direction the spindle comes too close to the edge of the top hole of the Sealand container. It can also be considered a drawback that the filling projection of the bearing housing of the known spindle is too thin-walled and it has been found that it cannot withstand the stresses encountered in use.

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The main object of the present invention is to provide a lifting device and its gripping spindles which can be turned to the locking position in both directions, with the consequent practical advantage that only one type of spindle is required. Thus, the manufacturing and storage costs of the spindles are significantly reduced.

It is a further object of the invention to provide a lifting device and its gripping spindles which, when used, have fewer limitations in the design of the pivot lever of the spindles, which is achieved above all by the fact that the spindles according to the invention can be pivoted in either direction. This advantage is particularly important when modifying already existing lifting frames according to the ISO standard, in which the spindles 5 turn in the same direction, also suitable for handling containers according to the Sealand standard.

It is a further object of the invention to provide a novel gripping mandrel having a shape such that its clearance in the area bounded together by the upper holes of the ISO and Sealand containers 10 is substantially equal at all points and in any case large enough for these mandrels to grip all tolerance requirements. ISO and Sealand containers.

It is also an object of the invention to provide a structure of the gripping mandrel such that lower bending moments are applied to the mandrel arm than in the known corresponding mandrels described above.

It is a further object of the invention to provide such a lifting device 20 in which the filling projection of the bearing housing of the gripping mandrels can be made of a strong construction than in known corresponding solutions.

In order to achieve the above-mentioned objects, the lifting device according to the invention is mainly characterized in that said transverse plane set through the centerlines of the Sealand and ISO top holes is at the same time substantially symmetrical to the gripping spindles when inserted so that the gripping spindles can be rotated counterclockwise, and that the pivot center of the gripping spindles is adjusted to a plane between the Sealand top holes and the center 30 axes of the ISO top holes substantially closer to the center line of the Sealand hole than to the corresponding center line of the ISO hole.

The gripping mandrel according to the invention is in turn mainly characterized in that the gripping mandrel has a substantially planar side-35 surface associated with short sides of the lifting mandrel, that the opposite side of said side surface has a substantially circular surface projection corresponding to the shape of the circular center portion of the Sealand hole. is shaped to curve towards the planar side surface 4 66330 and to conform to the shape of the ISO hole when the gripping spindle is inserted.

The most important advantage of the invention is that the gripping spindles of the lifting device according to the invention can be turned to the locking position equally well in both directions, so that all the corners of the lifting ring can have similar spindles, which is e.g. an important advantage over known spindles in terms of manufacturing and storage costs. The end of the spindle according to the invention is shaped so that the required 8 cm bearing surface is exceeded in the locking position.

10

The invention will now be described in detail with reference to an embodiment of the invention shown in the figures of the accompanying drawing, to the details of which the invention is in no way narrowly limited.

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Figure 1 schematically shows the position of the upper holes of the corner boxes of containers according to the Sealand and ISO standards in relation to each other and the principle of insertion and locking of the spindle according to the invention.

Figure 2 shows a side view of a lifting spindle according to the invention.

Figure 3 shows a section III-I1I in Figure 2.

Fig. 4 shows the gripping head of the mandrel as seen from the direction IV-IV in Fig. 3.

Figure 5 shows the structure of a bearing housing according to the invention as seen in the axial direction.

Figure 6 shows the same as Figure 5 seen from the side.

According to Figure 1, the corner boxes of Sealand containers have an upper hole 13, which is shown in Figure 1 by a dotted line. Correspondingly, containers according to the ISO standard have a top hole 12, which is shown by a dashed line and two dots. The distance between the Sealand top holes 13 ........ ± 48 at adjacent corners of the containers = 2286 'mm measured from the center plane T ^ -T ^ of the holes 13. Corresponding distance ^ 2 ~ ^ 2 v ^^ n from the middle planes of the holes 12 of the ISO containers = 2258- \ mm. Thus, the average distance between the planes T ^ -T ^ 5 66330 L1 "L2 and T2_T2 v ^^ nen + 1 ^ = ----- = 14 mm.

As shown in Figure 1, the top holes 12 of the ISO containers and the top holes 13 of the Sealand containers have a common "area". According to the invention, the lifting mandrels 10 mounted at the corners of the upper lifting circumference of the container 5 (not shown in the figures) are dimensioned and shaped so that they can be obtained through the upper holes of the corner boxes inside the corner boxes through the common "area" of holes 12 and 13. and Δ ^ from the edges of the different holes 12,13 to the edges 10 at the lifting spindle are sufficiently large in all directions and substantially equal to each other.

In Fig. 1, the insertion position of the lifting spindle is drawn in a thicker full line and indicated by reference numeral 10a. Correspondingly, the locking position is indicated by a thick dashed line and indicated by reference numeral 10b. Fig. 1 is a cross-sectional view of the areas α1 and α2, which illustrate the locking surfaces in connection with the upper hole 13 when the lifting spindle 10 is turned locked; position 10b about its center of rotation C.

Figure 1 shows the transverse-center plane P-P of the ISO top hole 12 and the Sealand top hole 13. The intersection line of the middle plane T1-T2 of the Sealand top hole 13 and said transverse plane P-P is denoted by A and the intersection line of said transverse plane P-P of the middle plane ^ 2 ~ ^ 2 of the ISO upper hole 12, respectively. According to the invention, the pivot center C of the lifting spindles 10 and their pivot arms 25 is arranged on a substantially transverse central plane P-P between said lines A and B. As shown in Fig. 1, the gripping spindle 10 in its insertion position 10a is symmetrical with respect to said central plane PP such that said plane PP is at the same time substantially the plane of symmetry of the mandrel 10a so that the distances of the short sides 16 of the mandrel 16 from this central plane are equal to each other. - in respect of spindles known from patent No 50867,

Figure 1 shows the dimension L 2, which is the distance between the central planes T 1 -T 2 of the adjacent spindles.

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The distances 1 ^ and ^ between said planes 3a ^ are chosen so that the above-mentioned tolerances A ^ ^ and Δ ^ are most preferably substantially equal to each other. This is achieved, for example, by dimensioning according to Figure 1, where 1 ^ = 2 x 6 66330

As stated above, it is essential in the invention that the pivot center C of the lifting spindles 10 is located substantially in the transverse central plane P-P of both the Seal and ISO holes 13 and 12 between the center lines A and B of said holes. As can be seen immediately from Figure 1, the lifting spindles 10 can be rotated to the locking position either clockwise or counterclockwise.

Figures 2, 3 and 4 show a more detailed embodiment of the lifting spindles 10. The lifting arms have a gripping head bounded by a substantially planar surface 10 and an opposite surface with a round protrusion 15 and slightly rounded short sides 16. The gripping heads 10 of the lifting arms are extended by a cylindrical shank portion 11. The planar surface 17 of the gripping heads forms a locking surface. In connection with the arm parts 11, there is an extension arm 16 to which a pivot link (not shown) known per se is connected.

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Figures 5 and 6 show a bearing housing 20 attached to the corners of the upper lifting ring of the container lifting device. A bearing spindle 10 is mounted on each bearing housing 20. For this purpose, the bearing housing 20 has a central hole 21 into which the arm 11 enters. The bearing housings 20 have a filling projection 22 20 so that the flat side 23 of the filling projection 22 abuts the flat surface 17 of the gripping projection of the mandrel 10. The shape of the filling protrusion 22 corresponds to the shape of the gripping spindle 10, as shown in Figures 3 and 5. The planar surface 14 of the gripping spindles 10 corresponds to the surface 24 of the filling projections and the circular projection surface 15 to the surface 25 of the filling projections.

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In the position 10a, the moon gripping spindles 10 are pushed into the upper holes 12 or 13, at the same time the filling projection 22 also protrudes into the upper part of the holes 12 or 13 so that the flat surface 27 of the bearing housings 20 corresponds to the top side of the container corner box. The gripping spindles 10a are then turned either clockwise or counterclockwise to the locking position 10b while the bearing housings 20 and filling projections 22 remain in place. Unlocking is performed by turning the gripping projection 10b to the position 10a, where it comes to the filling projection 22, after which, by lifting the lifting ring, four spindles and the entire lifting device can be detached from the connection of the container.

The invention further relates to a gripping spindle per se, which is intended for use in lifting containers according to both the Sealand and ISO standards. What is essentially new in this gripping mandrel is that the gripping mandrel 10 is substantially symmetrical with respect to a central plane P'-P 'set through its center of rotation C defined by its cylindrical shank portion 11, which plane P'-P' is substantially parallel to the short sides 16 of the lifting mandrel 16. When the gripping mandrels according to Fig. 1 are inserted, the center plane of symmetry P'-P 'shown in Fig. 3 coincides with the center plane P-P of the holes 12 and 13.

The following are claims within the scope of which the various details of the invention may vary within the scope of the inventive idea.

Claims (4)

8 66330 Container lifting devices for use in lifting containers according to both Sealand and ISO standards, the lifting device comprising an upper lifting ring with gripping spindles (10,11) rotatably mounted on bearing housings (20) having a shape and a fixed distance in the lifting ring that the gripping spindles (10) can be placed in one position inside the upper holes (12) of either the Sealand or ISO containers and the gripping spindles (10) can be locked in the locking position (10b), and which gripping spindles (10) have such a center of rotation ( C), the position of which when the lifting spindles (10a) are introduced into the corner box-10 of the containers differs from the center line (A) of both the Sealand top holes (13) and the center line (B) of the ISO top holes (12), and which rotation center (C) is adapted to substantially in the transverse plane (PP) set through the center lines (A, B) of the Sealand and ISO top holes (13,12), characterized in that said Sealand and 15 ISO top holes (13,12) are centered (A, B) through the set transverse plane (PP) is at the same time a substantially plane of symmetry for the gripping spindles (10) at their insertion (10a) so that the gripping spindles (10) can be turned to the locking position (10b) both clockwise and counterclockwise and the gripping spindles (10) is arranged 20 in the plane (PP) between the central axes (A, B) of the Sealand top holes (13) and the ISO top holes (12) substantially closer to the center line (A) of the Sealand hole (13) than to the corresponding center line (B) of the ISO hole (12) ). Lifting device according to Claim 1, characterized in that the distance (1) of the pivot center (C) of the gripping spindles (10) from the center (B) of the upper holes (12) of the ISO containers is approximately twice the corresponding distance (12). from the center line (A) of the upper holes (13) when performing the infection. A gripping mandrel for use in lifting both Sealand and ISO compliant containers, wherein the gripping mandrel (10) has a gripping projection at one end and an arm portion (11) as an extension thereof, with which the mandrel (10) is intended to be mounted in its bearing housing (20). ) and wherein the mandrel (10) has a substantially planar surface (17) delimiting its gripping projection, which acts as a locking surface, and which gripping mandrel (10) is substantially symmetrical through a center of rotation (C) defined by its cylindrical shank portion 9 66330 (11). with respect to the central plane (P 1 -P 2) in the direction of the short sides (16) of the gripping mandrel, characterized in that the gripping mandrel (10) has a substantially planar side surface (14) associated with the short sides (16) of the lifting mandrel and opposite the side surface (14). side has a substantially circular surface protrusion (15) having a shape corresponding to the shape of the circular center of the Sealand hole (13), and that the short sides (16) of the lifting mandrel are shaped as a planar side surface aa (14) to curve and to engage the gripping spindle (10) to conform to the shape of the ISO hole (Fig. 1). Gripping mandrel according to Claim 3, characterized in that the gripping mandrel (10) is shaped in such a way that the smallest clearances (Δ - ^, ί ^, Δ ^) at the edges of both the ISO hole (12) and the Sealand upper hole (13) are mutually substantially equal (Figure 1). 10 66330