FR2703672A3 - Shoe for a device for lifting a reel of metallurgical product, and device incorporating this shoe - Google Patents
Shoe for a device for lifting a reel of metallurgical product, and device incorporating this shoe Download PDFInfo
- Publication number
- FR2703672A3 FR2703672A3 FR9304275A FR9304275A FR2703672A3 FR 2703672 A3 FR2703672 A3 FR 2703672A3 FR 9304275 A FR9304275 A FR 9304275A FR 9304275 A FR9304275 A FR 9304275A FR 2703672 A3 FR2703672 A3 FR 2703672A3
- Authority
- FR
- France
- Prior art keywords
- shoe
- reel
- coil
- lifting
- shoe according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
- B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/24—Single members engaging the loads from one side only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/12—Platforms; Forks; Other load supporting or gripping members
- B66F9/18—Load gripping or retaining means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
Description
La présente invention a pour objet un sabot pour dispositif de levage de bobine de produit métallurgique, disposée de manière que son axe soit horizontal, ce dispositif de levage pouvant être par exemple une pince, ou un C de manutention, ou encore un éperon de chariot élévateur. The subject of the present invention is a shoe for a device for lifting a reel of metallurgical product, arranged so that its axis is horizontal, this lifting device possibly being, for example, a gripper, or a handling C, or even a spur of the carriage. elevator.
On sait que dans les installations sidérurgiques, les bobines d'acier sont emballées par du papier, du capotage métallique, et ligaturées par un feuillard métallique. Ces bobines sont manipulées à l'aide de ponts roulants pourvus de pinces porte-bobines. La partie de la pince venant au contact des bobines, constituée par un sabot, ayant une surface supérieure convexe d'appui de la bobine, peut entraîner une détérioration de celle-ci, de l'emballage et des feuillards de cerclage. It is known that in steel installations, the steel coils are wrapped by paper, with metallic covering, and ligated by a metallic strip. These coils are handled using traveling cranes provided with reel clamps. The part of the clamp coming into contact with the reels, constituted by a shoe, having a convex upper surface for supporting the reel, may cause deterioration of the latter, of the packaging and of the strapping strips.
Ces détériorations ont plusieurs causes : les angles vifs du sabot au moment du serrage, un mauvais centrage du sabot dans le coeur de la bobine qui la fait rouler lors du levage, un mouvement pendulaire de la bobine au moment du déplacement et de la dépose au sol. En particulier, les feuillards transversaux de cerclage de la bobine au droit du sabot sont régulièrement endommagés par ce dernier. These deteriorations have several causes: the sharp angles of the shoe at the time of tightening, a bad centering of the shoe in the core of the spool which makes it roll during lifting, a pendular movement of the spool at the time of displacement and removal ground. In particular, the transverse straps for strapping the coil in line with the shoe are regularly damaged by the latter.
L'invention a donc pour but de proposer un sabot réalisé de manière à éliminer ces inconvénients. The invention therefore aims to provide a shoe made so as to eliminate these drawbacks.
Conformément à l'invention, la surface du sabot est profilée de manière à présenter un évidement médian allongé qui délimite deux génératrices latérales d'appui de la bobine, raccordées à des surfaces opposées arrondies d'appui de la bobine. According to the invention, the surface of the shoe is profiled so as to have an elongated median recess which delimits two lateral generators for supporting the coil, connected to opposite rounded surfaces for supporting the coil.
Ainsi le sabot présente à la bobine deux zones d'appui au lieu d'une seule, ce qui supprime pratiquement le roulis de la bobine. De plus le feuillard de cerclage vient se loger dans le creux médian longé par les génératrices latérales, et n'est donc plus endommagé par la surface du sabot. Thus the shoe has two support zones on the spool instead of just one, which virtually eliminates the roll of the spool. In addition, the strapping band is housed in the median hollow bordered by the lateral generatrices, and is therefore no longer damaged by the surface of the shoe.
Suivant une particularité de l'invention, le sabot, vu de dessus, a une forme trapézoïdale, orientée de manière que sa petite base soit située à l'intérieur de la bobine lorsque cette dernière est en appui sur le sabot. According to a feature of the invention, the shoe, seen from above, has a trapezoidal shape, oriented so that its small base is located inside the coil when the latter is in contact with the shoe.
Cette forme trapézoïdale facilite l'auto-centrage du sabot à l'intérieur de la bobine. This trapezoidal shape facilitates self-centering of the shoe inside the spool.
D'autres particularités et avantages de l'invention apparaîtront au cours de la description qui va suivre, faite en référence aux dessins annexés qui en illustre une forme de réalisation à titre d'exemple non limitatif. Other features and advantages of the invention will become apparent during the description which follows, given with reference to the appended drawings which illustrate an embodiment thereof by way of nonlimiting example.
La figure 1 est une vue en élévation simplifiée d'une pince de préhension d'une bobine à axe horizontal, dont les bras sont pourvus de sabots conformes à l'invention. Figure 1 is a simplified elevational view of a gripper for gripping a coil with a horizontal axis, the arms of which are provided with shoes according to the invention.
La figure 2 est une vue en élévation en bout, à échelle agrandie par rapport à la Fig.1, d'une forme de réalisation d'un sabot conforme à l'invention. Figure 2 is an end elevational view, on an enlarged scale relative to Fig.1, of an embodiment of a shoe according to the invention.
La figure 3 est une vue de dessus du sabot de la
Fig.2.Figure 3 is a top view of the shoe of the
Fig. 2.
La figure 4 est une vue en élévation latérale du sabot des Fig.2 et 3. Figure 4 is a side elevational view of the shoe of Figures 2 and 3.
La figure 5 est une vue en perspective d'un C de manutention équipé d'un sabot selon l'invention. Figure 5 is a perspective view of a handling C equipped with a shoe according to the invention.
La figure 6 est une vue en perspective d'un chariot élévateur pourvu d'un éperon sur lequel est ménagé un sabot conforme à l'invention. Figure 6 is a perspective view of a forklift provided with a spur on which is provided a shoe according to the invention.
La pince 1 de manutention d'une bobine 2 représentée à la Fig.l comporte, de manière connue en soi, deux bras 3 mobiles l'un par rapport à l'autre selon une direction horizontale et qui sont chacun munis à leurs extrémités d'un sabot 4 conforme à l'invention. Chaque sabot 4 s'étend à peu près horizontalement lorsqu'il est introduit à l'intérieur de la bobine 2 à ses extrémités opposées, la bobine étant disposée avec son axe XX horizontal. The clamp 1 for handling a coil 2 shown in Fig.l comprises, in a manner known per se, two arms 3 movable relative to each other in a horizontal direction and which are each provided at their ends with 'a shoe 4 according to the invention. Each shoe 4 extends approximately horizontally when it is introduced inside the coil 2 at its opposite ends, the coil being arranged with its horizontal axis XX.
Chaque sabot 4 comporte une platine 5 fixée à l'extrémité du bras correspondant 3, et qui supporte une pièce 6 constituant le sabot proprement dit, des goussets 7 de renfort étant prévus entre la platine 5 et la surface inférieure de la pièce 6. La surface supérieure de cette dernière est profilée de manière à présenter un évidement médian allongé 8, ayant une concavité de rayon de courbure approprié et qui délimite deux génératrices latérales 9 d'appui de la bobine 2, raccordées à des bords opposés arrondis 11. Ces derniers ont une courbure appropriée, dont le rayon r de courbure est de préférence égal au rayon intérieur de la bobine 2. Each shoe 4 has a plate 5 fixed to the end of the corresponding arm 3, and which supports a part 6 constituting the shoe itself, gussets 7 of reinforcement being provided between the plate 5 and the lower surface of the part 6. The upper surface of the latter is profiled so as to have an elongated median recess 8, having a concavity of appropriate radius of curvature and which delimits two lateral generatrices 9 for supporting the coil 2, connected to opposite rounded edges 11. These latter have an appropriate curvature, the radius r of curvature of which is preferably equal to the internal radius of the coil 2.
D'autre part, vu de dessus, la pièce 6 a une forme trapézoïdale 12, orientee de manière que sa petite base 13 soit située à l'intérieur de la bobine 2 lorsque cette dernière est en appui sur les surfaces arrondies 11. Les deux génératrices 9 peuvent être distantes d'un angle A au centre de la bobine 2 compris entre 30 et 40 degrés environ (Fig.2). Enfin les sommets du contour trapézoïdal 12 de la pièce d'appui 6 présentent des arrondis 13 et 14. On the other hand, seen from above, the part 6 has a trapezoidal shape 12, oriented so that its small base 13 is located inside the coil 2 when the latter is in abutment on the rounded surfaces 11. The two generators 9 can be spaced by an angle A at the center of the coil 2 of between 30 and 40 degrees approximately (Fig. 2). Finally, the vertices of the trapezoidal outline 12 of the support piece 6 have rounded edges 13 and 14.
Lorsque les sabots 4 sont engagés à l'intérieur de la bobine 2, la surface intérieure 2a de celle-ci vient prendre appui, de chaque côté de l'évidement médian 8, sur les génératrices 9 et les secteurs cylindriques 11, ce qui empêche pratiquement toute oscillation de la bobine 2. De plus le feuillard 10 de cerclage de cette dernière vient se loger dans l'évidement 8 et ne peut donc plus être endommagé par le sabot 4. When the shoes 4 are engaged inside the coil 2, the inner surface 2a of the latter comes to bear, on each side of the median recess 8, on the generators 9 and the cylindrical sectors 11, which prevents practically any oscillation of the coil 2. In addition, the strip 10 for strapping the latter comes to be housed in the recess 8 and can therefore no longer be damaged by the shoe 4.
La forme légèrement trapézoïdale ou conique 12 de chaque sabot 4 facilite son auto-centrage dans la bobine 2, tandis que ses coins arrondis 13, 14 rendent le sabot moins agressif sous tous les angles pour la bobine 2. Par ailleurs les surfaces d'appui 9, 11 sont beaucoup plus importantes que la surface de la zone centrale d'appui du sabot utilisé antérieurement. Cet accroissement de la surface de contact entraîne une diminution des contraintes qui blessent le métal, particulièrement dans les fines épaisseurs (arrondis 13 et 14). The slightly trapezoidal or conical shape 12 of each shoe 4 facilitates its self-centering in the coil 2, while its rounded corners 13, 14 make the shoe less aggressive from all angles for the coil 2. Furthermore the bearing surfaces 9, 11 are much larger than the area of the central support area of the shoe previously used. This increase in the contact surface results in a reduction in the stresses which injure the metal, particularly in thin thicknesses (rounded 13 and 14).
A titre d'exemple numérique non limitatif, pour une bobine 2 ayant un coeur de diamètre 610 ou 760 mm, l'évidement 8 peut avoir un rayon de courbure de 150 mm, et les bords cylindriques 11 un rayon de 305 inm. By way of nonlimiting numerical example, for a coil 2 having a core with a diameter of 610 or 760 mm, the recess 8 may have a radius of curvature of 150 mm, and the cylindrical edges 11 a radius of 305 inm.
La Fig.5 montre un "C" 16 de manutention, dont la branche supérieure est suspendue à un crochet 17 de levage, et dont la branche inférieure 18 est pourvue d'un sabot 19 ayant une surface profilée similairement à celle du sabot 4, mais qui s'étend sur toute la surface supérieure de la branche 18. Cette longueur du sabot 18 est approximativement égale à la largeur de la bobine 20 à manutentionner. Fig.5 shows a handling "C" 16, the upper branch of which is suspended from a lifting hook 17, and the lower branch 18 of which is provided with a shoe 19 having a profiled surface similar to that of shoe 4, but which extends over the entire upper surface of the branch 18. This length of the shoe 18 is approximately equal to the width of the coil 20 to be handled.
On voit à la Fig.6 une autre application de l'invention, dans laquelle un chariot élévateur 21 comporte un éperon horizontal 22 équipé d'un sabot 23 ayant un profil analogue à celui du sabot 4, et qui s'étend sur toute la longueur de l'éperon 22. We see in Fig.6 another application of the invention, in which a forklift 21 includes a horizontal spur 22 equipped with a shoe 23 having a profile similar to that of shoe 4, and which extends over the entire length of spur 22.
L'invention est susceptible de diverses variantes d'exécution, le creux 8 n'étant pas obligatoirement cylindrique, et de diverses applications à d'autres dispositifs de levage que ceux mentionnés ci-dessus. The invention is susceptible of various variant embodiments, the hollow 8 not necessarily being cylindrical, and of various applications to other lifting devices than those mentioned above.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9304275A FR2703672B3 (en) | 1993-04-09 | 1993-04-09 | Shoe for metallurgical product reel lifting device and device incorporating this shoe. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9304275A FR2703672B3 (en) | 1993-04-09 | 1993-04-09 | Shoe for metallurgical product reel lifting device and device incorporating this shoe. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2703672A3 true FR2703672A3 (en) | 1994-10-14 |
FR2703672B3 FR2703672B3 (en) | 1995-03-31 |
Family
ID=9445962
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9304275A Expired - Fee Related FR2703672B3 (en) | 1993-04-09 | 1993-04-09 | Shoe for metallurgical product reel lifting device and device incorporating this shoe. |
Country Status (1)
Country | Link |
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FR (1) | FR2703672B3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110040663A (en) * | 2019-03-13 | 2019-07-23 | 唐山港集团股份有限公司 | A kind of fork truck clip hook of the suitable dress roll bending of handling |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB681110A (en) * | 1950-05-15 | 1952-10-15 | Brightside Foundry & Engineeri | Improvements in or relating to suspension hooks |
US2906555A (en) * | 1956-02-07 | 1959-09-29 | American Forge And Mfg Company | Tong apparatus |
US3104016A (en) * | 1957-12-16 | 1963-09-17 | Alliance Machine Co | Coil handling crane |
US4005793A (en) * | 1975-10-10 | 1977-02-01 | Kasle Steel Corporation | Ram for lift truck |
JPH01172195A (en) * | 1987-12-25 | 1989-07-07 | Kawasaki Steel Corp | Multiply slitted coil hook |
EP0527698A1 (en) * | 1991-08-12 | 1993-02-17 | Lbl Lager- Und Betriebstechnik Gmbh | Device for transporting and for storing heavy cylindrical objects |
-
1993
- 1993-04-09 FR FR9304275A patent/FR2703672B3/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB681110A (en) * | 1950-05-15 | 1952-10-15 | Brightside Foundry & Engineeri | Improvements in or relating to suspension hooks |
US2906555A (en) * | 1956-02-07 | 1959-09-29 | American Forge And Mfg Company | Tong apparatus |
US3104016A (en) * | 1957-12-16 | 1963-09-17 | Alliance Machine Co | Coil handling crane |
US4005793A (en) * | 1975-10-10 | 1977-02-01 | Kasle Steel Corporation | Ram for lift truck |
JPH01172195A (en) * | 1987-12-25 | 1989-07-07 | Kawasaki Steel Corp | Multiply slitted coil hook |
EP0527698A1 (en) * | 1991-08-12 | 1993-02-17 | Lbl Lager- Und Betriebstechnik Gmbh | Device for transporting and for storing heavy cylindrical objects |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 13, no. 449 (M - 878) 9 October 1989 (1989-10-09) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110040663A (en) * | 2019-03-13 | 2019-07-23 | 唐山港集团股份有限公司 | A kind of fork truck clip hook of the suitable dress roll bending of handling |
Also Published As
Publication number | Publication date |
---|---|
FR2703672B3 (en) | 1995-03-31 |
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ST | Notification of lapse |