EP0382991A1 - Zweiteiliger Greiferhaken für Armeinholgerät, insbesondere für Auf-/Abladeausleger - Google Patents

Zweiteiliger Greiferhaken für Armeinholgerät, insbesondere für Auf-/Abladeausleger Download PDF

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Publication number
EP0382991A1
EP0382991A1 EP89403396A EP89403396A EP0382991A1 EP 0382991 A1 EP0382991 A1 EP 0382991A1 EP 89403396 A EP89403396 A EP 89403396A EP 89403396 A EP89403396 A EP 89403396A EP 0382991 A1 EP0382991 A1 EP 0382991A1
Authority
EP
European Patent Office
Prior art keywords
latch
hook
arm
pin
spout
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.)
Withdrawn
Application number
EP89403396A
Other languages
English (en)
French (fr)
Inventor
Bernard Lambert
Albert Heritier
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.)
Bennes Marrel SA
Original Assignee
Bennes Marrel SA
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 Bennes Marrel SA filed Critical Bennes Marrel SA
Publication of EP0382991A1 publication Critical patent/EP0382991A1/de
Withdrawn legal-status Critical Current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
    • 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

Definitions

  • the invention relates to a gripping hook for a hauling device with arms, in particular but not exclusively intended to equip the arm with a load handling jib suitable for loading and unloading on the chassis of a truck a load, such as a platform or a container in particular, provided with a bar or gripping ring.
  • Such a hook is conventionally in a single solid piece of a material capable of giving it the desired mechanical properties. It should indeed be noted that such a hook can be caused, in certain cases, to lift very heavy loads, of several tons.
  • the invention aims to overcome this drawback by proposing a gripping hook in two parts, the structure of which allows both: - easy penetration into this hook of a gripping bar secured to a load to be grasped, - a possible reduction of the slot penetration / exhaust of this hook in order to reduce, or even eliminate, the risks of escape from this grasping bar after the latter has been engaged inside this hook, - while having mechanical properties comparable to those of a solid hook in one piece.
  • the invention provides a gripping hook for an arm hauling device, comprising a base adapted to be fixed to a gripping of this hauling arm and provided with a hooking spout, on the one hand, and d 'a claw, on the other hand, this beak and this claw jointly forming an open loop adapted to receive a gripping bar provided on a load to be hauled, characterized in that it is formed, on the one hand, by a hook body adapted to be fixed to said end of the arm and comprising the hooking beak as well as forming part of the claw, two parallel lateral cheeks connected by a curved core towards the beak and jointly determining an open groove opposite said beak, and, on the other hand, a latch engaged and held in this groove and having a free end projecting from one end of the groove approximately in the direction of the hooking beak.
  • the pawl is mounted mobile and pivoting in the groove of the hook body between a maximum closing configuration in which the pawl runs along the curved core while its free end is near the hooking spout and a maximum opening configuration in which the latch is inclined with respect to this core, the free end of the latch, of greater thickness than the rest of the latch, has suitable shoulders, in said configuration of maximum opening, to come into abutment against abutment zones formed on the edges of the side cheeks, - it comprises an actuator arranged in said groove and interposed between the latch and a fixed support zone relative to the hook body, - this actuator is a jack, - it includes a transverse pin secured to the latch and engaged in longitudinal slots made in the side cheeks, it further comprises a transverse pin secured to the lateral cheeks of the hook body and engaged in an oblong opening formed in the pawl beyond the transverse pin secured to the pawl relative to the zone for fixing the hook to said end of said arm, this light being generally
  • Figures 1 and 2 show a gripping hook 1 mounted at the end 2 of an arm which is equipped with a hauling device (not shown) such as a bracket of any suitable known type, suitable for loading / unloading a load on the chassis of a truck.
  • a hauling device such as a bracket of any suitable known type, suitable for loading / unloading a load on the chassis of a truck.
  • This hook comprises a base 3, adapted to be fixed to this end 2 of the arm, and which comprises projecting, in the extension of the arm, on the one hand a hooking spout 4, and a curved claw 5, on the other hand, this beak and this claw jointly constituting an open ring or loop (e) have an opening 6 through which can penetrate a gripping bar (7) which is provided with a load to be handled, such as a box or a platform (not shown) in particular.
  • This hook 1 is formed of two parts, one of which, A, has the base 3, the hooking spout 4 and part of the claw, and the other of which, B, called latch, forms the rest of this claw .
  • Part A also called hook body, is formed by a massive portion constituting the spout 4 and a base part 3, and a hollow portion forming a claw.
  • This hollowed out portion comprises two lateral cheeks 8 and 9 integral with the massive portion and connected by a curved core 10 bordering the interior of the claw; this claw thus has, in the plane of the open loop formed by this claw and the spout, a groove 11, open towards the outside opposite the spout, and whose core 10 constitutes the bottom.
  • the end 2 of the arm has in its edge a cavity 2A adapted to receive these ears, and the walls of which are provided with coaxial holes 16 and 17.
  • the attachment of the hook 1 to the end 2 of the arm is obtained by a pin 18 simultaneously passing through the holes 14, 15, 16 and 17.
  • the holding in position of this hook on the arm results from coming into abutment, when the pin 18 is in place, support zones 19 and 20, on the one hand, 21 and 22, on the other hand, respectively formed on the end 2 and on the hook 1, on either side of the holes 14 and 15, 16 and 17.
  • the attachment of the hook to the arm can also be ensured by welding, the pin can then be omitted.
  • the cheeks 8 and 9 are separated by a distance suitable for allowing the ears 12 and 13 to cover the end 2 of the arm.
  • the pin 18 is advantageously replaced, in a variant not shown, by a bolt adapted to receive a tightening nut.
  • each of the side cheeks are arranged, offset parallel to the longitudinal axis X-X of the hook, a lumen 23 and a bore 24, this lumen being disposed between the bore and the end 2 of the arm.
  • lateral cheeks are, opposite the base 3, curved transversely to the axis XX and have on their edges, support flats 25 and 26 arranged at least approximately opposite the hooking spout 4.
  • the latch is engaged in the groove 11 of the claw 5, between the cheeks 8 and 9; its thickness, measured perpendicular to the plane of FIG. 1, is barely less than the width of the groove 11.
  • This latch B has an arcuate shape adapted to match the contour of the core 10 constituting the bottom of the groove 11. It has a free end 27 which projects out of the groove 11 and which is at least approximately oriented towards the beak attachment 4. It has another end 28, near which are formed two circular holes 29 and 30 respectively adapted to come, when this latch is engaged, in this slot along the core 10, respectively facing the light 23 and the hole 24. Pins 31 and 32 are provided for passing through the holes 23 and 29 and the holes 24 and 30 respectively, so as to keep the latch B in place in the claw 5 of the hook body A.
  • the latch is fixed relative to the hook body A.
  • FIGS 3 to 5 show a hook 1 ′ which constitutes an alternative embodiment of the hook of Figures 1 and 2.
  • This hook 1 ′ differs from hook 1 only by its latch B ′, which is of a geometry different from that latch B, and by the presence of an actuator C here constituted by a jack.
  • This hook 1 ′ indeed has the same hook body A as the hook 1, which is fixed, in the same manner as previously exposed, to the end 2 of the arm considered. Again, the body A can be welded to the arm, the pin can however be kept to play a role which will be explained below.
  • latch B ′ it is distinguished from latch B of hook 1 by the fact that its free end 27 ′ is enlarged and has lateral shoulders 35 and 36, and in that its other end 28 ′ is formed by two ears 37 and 38 between which a washer 39 can be engaged, integral with the rod 40 of the jack C; in these ears are formed coaxial circular bores 41 and 42, corresponding to the bore 29 of the latch B, and adapted to be traversed, like the washer 39, by the pin 31 moreover engaged in the slots 23 of the cheeks 8 and 9 of the hook A.
  • the latch B ′ further comprises, at a distance from this end 28 ′, a lumen 43 which, when the latch is in place in the groove 11 of the body A, is approximately inclined, with respect to the axis XX , towards the hooking spout.
  • the jack C is also articulated on the hook body, by means of its cylinder 44 which is traversed by a bore 45 adapted to engage on the pin 18 between the ears 12 and 13.
  • This light 43 is in such a position relative to the holes 41 and 42 that, when the latch B ′ is in place in the hook body along the bottom 10 of the groove 11 (see FIG. 3), the pin 31 secured of the latch crosses the slots 23 near their lower end (closest to the base 3) while the pin 32, secured to the side cheeks 8 and 9, crosses the slot 43 substantially near its upper end (the most distant base 3 or spout 4).
  • This latch B ′ has a conformation such that, in this aforementioned configuration, its free end 27 ′ is in the immediate vicinity of the hooking spout, that is to say at a distance suitable for preventing the escape of the grip bar 7 previously engaged between the spout and the claw: it suffices for this that the aforementioned distance between the spout and its free end 27 ′ is less than the smallest dimension, in practice the diameter, of this bar.
  • this smaller dimension is known in advance, sometimes defined by standards and it is easy to determine the shape of the pawl accordingly.
  • the bar 7 can therefore only escape by voluntary action, or by an automatic process of the actuator control system.
  • the inclination of the light 43 causes, by the guidance that this performs for the pin 32 secured to the hook body, not only a lifting of the length B ′ but also a pivoting of the latter adapted to increase the distance from the free end 27 ′ with respect to the spout 4 This pivoting / lifting continues until the shoulders 35 and 36 provided at the abutment provided at the rear of this free end against the flats 25 and 26 provided at the ends of the cheeks.
  • the latch B ′ is therefore movable relative to the hook body A between a safety configuration ( Figure 3) and a maximum opening configuration (Figure 4).
  • hooks 1 and 1 ′ differ only in the conformation of their latch, this results in increased standardization as regards their manufacture since only one type of hook body A is to be expected.
  • actuator C represented in the form of a jack (without the supply pipes for control fluid, so as not to overload the drawings), can be replaced by any other suitable known device, automatic or manual, mechanical, hydraulic, pneumatic, electric or other.
  • the shape of the hook makes it possible to adapt to the different heights for hanging loads specific to a hauling device with a given arm.
  • a hook either in its fixed latch version or in its mobile latch version, can be used on all road equipment with arms for the transport of all types of removable boxes or containers, the hook body and its latch being, by design, suitable for meeting the safety regulations in force in most countries.
  • the core 10 need not be continuous along the groove since it only serves, in addition to the connection of the side cheeks, to position the pawl at the bottom of the groove: it can be reduce to just two transverse support zones.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
  • Load-Engaging Elements For Cranes (AREA)
EP89403396A 1989-02-17 1989-12-07 Zweiteiliger Greiferhaken für Armeinholgerät, insbesondere für Auf-/Abladeausleger Withdrawn EP0382991A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8902122A FR2643352B1 (fr) 1989-02-17 1989-02-17 Crochet de prehension en deux parties pour appareil de halage a bras, notamment pour potence de chargement/dechargement
FR8902122 1989-02-17

Publications (1)

Publication Number Publication Date
EP0382991A1 true EP0382991A1 (de) 1990-08-22

Family

ID=9378903

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89403396A Withdrawn EP0382991A1 (de) 1989-02-17 1989-12-07 Zweiteiliger Greiferhaken für Armeinholgerät, insbesondere für Auf-/Abladeausleger

Country Status (2)

Country Link
EP (1) EP0382991A1 (de)
FR (1) FR2643352B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104773260A (zh) * 2015-05-04 2015-07-15 刘波 一种船体悬吊用锁勾机构
US10752470B2 (en) * 2015-07-06 2020-08-25 Durham Lifting Limited Quick release shackle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1055646A (fr) * 1952-05-09 1954-02-19 Joue Les Tours Soc Ind De Mousqueton pour l'accrochage du système d'ouverture automatique d'un parachute
US3212153A (en) * 1963-12-13 1965-10-19 Michael J Lynch Snaphooks
DE2438172A1 (de) * 1974-08-08 1976-02-19 Hugo Wupper Am lasthaken eines kranes anhaengbares lastaufnahmemittel
FR2352744A1 (fr) * 1976-05-26 1977-12-23 Duperray Jean Crochet a degagement automatique ou commande pour sacs et toutes charges suspendues

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1055646A (fr) * 1952-05-09 1954-02-19 Joue Les Tours Soc Ind De Mousqueton pour l'accrochage du système d'ouverture automatique d'un parachute
US3212153A (en) * 1963-12-13 1965-10-19 Michael J Lynch Snaphooks
DE2438172A1 (de) * 1974-08-08 1976-02-19 Hugo Wupper Am lasthaken eines kranes anhaengbares lastaufnahmemittel
FR2352744A1 (fr) * 1976-05-26 1977-12-23 Duperray Jean Crochet a degagement automatique ou commande pour sacs et toutes charges suspendues

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104773260A (zh) * 2015-05-04 2015-07-15 刘波 一种船体悬吊用锁勾机构
US10752470B2 (en) * 2015-07-06 2020-08-25 Durham Lifting Limited Quick release shackle

Also Published As

Publication number Publication date
FR2643352B1 (fr) 1991-06-07
FR2643352A1 (fr) 1990-08-24

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