FR2583731A1 - Lifting hook for devices with automatic grasping - Google Patents

Lifting hook for devices with automatic grasping Download PDF

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Publication number
FR2583731A1
FR2583731A1 FR8509529A FR8509529A FR2583731A1 FR 2583731 A1 FR2583731 A1 FR 2583731A1 FR 8509529 A FR8509529 A FR 8509529A FR 8509529 A FR8509529 A FR 8509529A FR 2583731 A1 FR2583731 A1 FR 2583731A1
Authority
FR
France
Prior art keywords
axis
curve
lifting hook
hook
latch
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
Application number
FR8509529A
Other languages
French (fr)
Other versions
FR2583731B1 (en
Inventor
Rene Robin
Jean Louis Joseph Chaud
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sollac SA
Original Assignee
Sollac SA
Lorraine de Laminage Continu SA SOLLAC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sollac SA, Lorraine de Laminage Continu SA SOLLAC filed Critical Sollac SA
Priority to FR8509529A priority Critical patent/FR2583731B1/en
Publication of FR2583731A1 publication Critical patent/FR2583731A1/en
Application granted granted Critical
Publication of FR2583731B1 publication Critical patent/FR2583731B1/en
Expired legal-status Critical Current

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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
    • B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
    • B66C1/34—Crane hooks
    • B66C1/36—Crane hooks with means, e.g. spring-biased detents, for preventing inadvertent disengagement of loads

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

The invention relates to a lifting hook preventing the catch 15 from deteriorating during automatic grasping operations. The subject of the invention resides in a special design of the curvature of the inner surface of the hook such that the pin of the grasping ring 11 moves so as to bear against the upper part 16 of the curved surface avoiding any impact with the catch 15 or its pin support boss. This invention will be applied in the field of industries involving handling by means of lifting devices using hooks such as: rolling bridges, cranes, monorails, pulley blocks, etc.

Description

Crochet de levage pour appareils à préhension automatique.Lifting hook for automatic gripping devices.

La présente invention concerne un crochet de levage : elle vise à supprimer les dégradations du lingot lors du fonctionnement en préhension automatique. The present invention relates to a lifting hook: it aims to eliminate damage to the ingot during operation with automatic gripping.

Le domaine d'utilisation de l'invention est l'ensemble des industries utilisant des manutentions par appareils de levage employant des crochets tels que ponts-roulants, grues, monorails, etc. The field of use of the invention is all the industries using handling by lifting devices using hooks such as overhead traveling cranes, cranes, monorails, etc.

Un crochet de levage traditionnel est constitué d'une tige (1) et d'un corps de crochet (2). A traditional lifting hook consists of a rod (1) and a hook body (2).

Le corps du crochet proprement dit est delimité par 2 lignes courbes: d'une part, la courbe intrados (3) qui va du bec (4) au bossage (5) supportant l'axe du linguet (6). Ladite courbe délimite un espace allongé, ouvert vers le haut et dont l'axe d'orientation principale est en général incliné par rapport à la verticale. Dans cet espace, vient se loger l'élingue ou l'axe (7) rigide de l'anneau de préhension de l'appareil à soulever d'autre part, la courbe extrados (8). The body of the hook proper is delimited by 2 curved lines: on the one hand, the lower surface curve (3) which goes from the spout (4) to the boss (5) supporting the axis of the latch (6). Said curve delimits an elongated space, open upwards and whose main orientation axis is generally inclined relative to the vertical. In this space, is housed the sling or the rigid axis (7) of the gripping ring of the device to be lifted on the other hand, the upper surface curve (8).

L'ouverture de l'espace délimité par la courbe intrados (3) est fermée par un linguet (6) maintenu dans sa position par un contrepoids (9). The opening of the space delimited by the lower surface curve (3) is closed by a latch (6) held in its position by a counterweight (9).

L'inconvénient d'une telle disposition, comme le montre la fig. (1) est, qu'en cas de remontée de l'axe (7), au moment de la dépose, ledit axe vient buter sur le linguet (6) qui se déforme et finit par casser. The disadvantage of such an arrangement, as shown in FIG. (1) is that, in the event of the axis (7) rising, at the time of removal, said axis abuts on the latch (6) which deforms and ends up breaking.

Une solution consiste à disposer sur l'appareil à soulever des broches amovibles (10) servant de butées. One solution is to have removable pins (10) serving as stops on the lifting device.

Outre que cette solution n'est pas toujours facile à réaliser, elle nécessite une personne pour mettre en place les broches, ce qui va à l'encontre de l'objectif d'automatisation. In addition to the fact that this solution is not always easy to perform, it requires a person to install the pins, which goes against the objective of automation.

Dans le dispositif objet de l'invention, la courbe intrados a une forme telle que l'axe de l'anneau de préhension se déplace de façon à venir buter sur la partie supérieure de la courbe en évitant tout choc avec le linguet ou le bossage, supportant l'axe de celui-ci. In the device which is the subject of the invention, the lower surface curve has a shape such that the axis of the gripping ring moves so as to abut on the upper part of the curve, avoiding any impact with the latch or the boss. , supporting the axis thereof.

La figure (2) montre une réalisation selon le principe de l'invention. Figure (2) shows an embodiment according to the principle of the invention.

La zone d'évolution de l'axe (11) de l'appareil de préhension délimitée par la courbe intrados (12) a la forme d'un rectangle dont le grand axe est vertical et dont le côté inférieur est prolongé par un demi cercle (13) formant le siège du crochet.  The area of development of the axis (11) of the gripping device delimited by the lower surface curve (12) has the shape of a rectangle whose major axis is vertical and whose lower side is extended by a semicircle (13) forming the seat of the hook.

Le côté supérieur du rectangle est lui aussi prolongé d'un demi cercle qui peut avantageusement être de même diamètre que le siège. The upper side of the rectangle is also extended by a semicircle which can advantageously be of the same diameter as the seat.

Ce demi cercle supérieur se raccorde au bossage (14) supportant l'axe du linguet (15). This upper semi-circle is connected to the boss (14) supporting the axis of the latch (15).

Le linguet (15) peut avantageusement être disposé verticalement en position de fermeture.  The latch (15) can advantageously be arranged vertically in the closed position.

Claims (2)

REVENDICATIONS 1. Crochet de levage pour appareil de préhension automatique, caractérisé en ce que la courbe interne du crochet, dite courbe intrados (12) présente une forme telle qu'en cas de remontée de l'axe (11) de l'appareil à lever, ledit axe vient buter sur la partie supérieure de la courbe en évitant sur sa trajectoire, tout choc avec le linguet (15) ou avec le bossage supportant l'axe du linguet.1. Lifting hook for automatic gripping device, characterized in that the internal curve of the hook, called the underside curve (12) has a shape such that in the event of the axis (11) rising of the device to be lifted , said axis abuts on the upper part of the curve avoiding on its trajectory, any impact with the latch (15) or with the boss supporting the axis of the latch. 2. Crochet de levage selon la revendication N" 1, caractérisé en ce que la forme de la courbe intrados (12) délimite une surface formée d'un rectangle dont le grand axe est vertical et auquel est accolé, sur les faces supérieure (16) et inférieure (13) un demi cercle,le demi cercle supérieur (16) venant se raccorder au bossage (14) de support de l'axe du linguet et, le linguet venant refermer verticalement la courbe intrados. 2. lifting hook according to claim N "1, characterized in that the shape of the lower surface curve (12) delimits a surface formed by a rectangle whose major axis is vertical and to which is attached, on the upper faces (16 ) and lower (13) a semicircle, the upper semicircle (16) coming to be connected to the boss (14) for supporting the axis of the pawl and, the pawl coming to close the lower surface curve vertically.
FR8509529A 1985-06-20 1985-06-20 LIFTING HOOK FOR AUTOMATIC GRIPPING APPARATUSES. Expired FR2583731B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8509529A FR2583731B1 (en) 1985-06-20 1985-06-20 LIFTING HOOK FOR AUTOMATIC GRIPPING APPARATUSES.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8509529A FR2583731B1 (en) 1985-06-20 1985-06-20 LIFTING HOOK FOR AUTOMATIC GRIPPING APPARATUSES.

Publications (2)

Publication Number Publication Date
FR2583731A1 true FR2583731A1 (en) 1986-12-26
FR2583731B1 FR2583731B1 (en) 1988-03-25

Family

ID=9320562

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8509529A Expired FR2583731B1 (en) 1985-06-20 1985-06-20 LIFTING HOOK FOR AUTOMATIC GRIPPING APPARATUSES.

Country Status (1)

Country Link
FR (1) FR2583731B1 (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE53490C (en) * G. BLÜMCKE i^ Hamburg, Grofse Bleichen 76 Chain hook with counterweight lock and locking cap
GB190307778A (en) * 1903-04-03 1904-02-04 Platt Brothers & Co Ltd Improvements in Lifter-feet for Use with the Lifter-pillars used with Rails Lifted and Lowered in Ring-spinning Machines Ring-doubling Machines and other Machines for Preparing Spinning, Doubling and Winding Cotton, Wool, Silk and other Fibrous Materials.
GB191116783A (en) * 1911-07-21 1912-07-11 James Henry Dutton Improvements in Safety Hooks for Cranes and other purposes.
GB367222A (en) * 1931-04-01 1932-02-18 Wilfred Harry Perry Improvements relating to hooks for use with hoisting tackle and for other like uses
GB499245A (en) * 1938-05-05 1939-01-20 Christiaan Adam Improvements in or relating to safety hooks
US2349021A (en) * 1941-11-08 1944-05-16 Nat Steel Corp Safety crane hook
DE902545C (en) * 1951-08-29 1954-01-25 Heuer Hammer Schwerschmieden B Snap hook for large loads
DE1932802A1 (en) * 1969-06-27 1971-02-25 Fritz Leh Safety hook
FR2204563A1 (en) * 1972-10-25 1974-05-24 Ka Bergs Smide Ab
WO1980000075A1 (en) * 1978-06-16 1980-01-24 H Zepf Hook

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE53490C (en) * G. BLÜMCKE i^ Hamburg, Grofse Bleichen 76 Chain hook with counterweight lock and locking cap
GB190307778A (en) * 1903-04-03 1904-02-04 Platt Brothers & Co Ltd Improvements in Lifter-feet for Use with the Lifter-pillars used with Rails Lifted and Lowered in Ring-spinning Machines Ring-doubling Machines and other Machines for Preparing Spinning, Doubling and Winding Cotton, Wool, Silk and other Fibrous Materials.
GB191116783A (en) * 1911-07-21 1912-07-11 James Henry Dutton Improvements in Safety Hooks for Cranes and other purposes.
GB367222A (en) * 1931-04-01 1932-02-18 Wilfred Harry Perry Improvements relating to hooks for use with hoisting tackle and for other like uses
GB499245A (en) * 1938-05-05 1939-01-20 Christiaan Adam Improvements in or relating to safety hooks
US2349021A (en) * 1941-11-08 1944-05-16 Nat Steel Corp Safety crane hook
DE902545C (en) * 1951-08-29 1954-01-25 Heuer Hammer Schwerschmieden B Snap hook for large loads
DE1932802A1 (en) * 1969-06-27 1971-02-25 Fritz Leh Safety hook
FR2204563A1 (en) * 1972-10-25 1974-05-24 Ka Bergs Smide Ab
WO1980000075A1 (en) * 1978-06-16 1980-01-24 H Zepf Hook

Also Published As

Publication number Publication date
FR2583731B1 (en) 1988-03-25

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