EP3626672A1 - Hängevorrichtung mit unterschnittener kupplung - Google Patents

Hängevorrichtung mit unterschnittener kupplung Download PDF

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Publication number
EP3626672A1
EP3626672A1 EP19196351.1A EP19196351A EP3626672A1 EP 3626672 A1 EP3626672 A1 EP 3626672A1 EP 19196351 A EP19196351 A EP 19196351A EP 3626672 A1 EP3626672 A1 EP 3626672A1
Authority
EP
European Patent Office
Prior art keywords
cylindrical body
hooked
centring
coupling
diameter
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Withdrawn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
EP19196351.1A
Other languages
English (en)
French (fr)
Inventor
Antonio PICCAGLI
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.)
Studio Piccagli Srl
Original Assignee
Studio Piccagli Srl
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 Studio Piccagli Srl filed Critical Studio Piccagli Srl
Publication of EP3626672A1 publication Critical patent/EP3626672A1/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Withdrawn legal-status Critical Current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
    • B66C1/62—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

Definitions

  • the present invention relates to a hooking device with undercut coupling.
  • This refers in particular to devices used for hooking bodies, generally made from metal, and provided with a hole portion and/or a pin portion and/or a threaded portion that must be transported by transport systems that make these bodies slide along processing lines; for example, these devices are used to hook metal casings to painting lines, but can be hooked to metal elements that can be transported inside any production process or storage step of the metal element.
  • Bolts are currently used that bear, on the head, systems for the connection to the transport system which can be for example eyelets, hooks, snap-hooks, or any other known system for connection to a handling/piece processing line; a criterion for the choice of the type of connection system provided on the bolt depends on the corresponding connection system provided on the piece handling/transport line.
  • These bolts are screwed into threaded holes present in the body to be transported so as to be integral with the body itself; the bolt itself connects with the connection system provided on the head of the bolt, therefore the body integral therewith, to the transport line; the body and the bolt are thus suspended on the transport line.
  • Similar devices provide an internally threaded hole that is screwed onto a bolt in the body to be transported.
  • the bodies to hang and transport are mechanical pieces of considerable weight and size and thus the connection between the hooking device and the body must therefore be particularly solid and secure; for this purpose the threaded part of the device which couples with the body to be transported is equipped with numerous pitches of screws that assure a firm connection between the hooking device and the body to be hooked.
  • the screwing of the hooking device to the threaded hole of the body to be hooked is carried out manually; the operator assigned to this task must therefore make several turns of the device to ensure that the expected number of pitches of the threads of the device couples with the threads present in the body to be hooked.
  • an annular abutment surface is provided which alerts the operator of the completion of the screwing of the device on the body to be hooked.
  • the object of the present invention is to eliminate the drawbacks of the known devices by providing a hooking device that allows an easy and quick fixing to and removal from the body to be supported.
  • Another object of the present invention is to always ensure a correct and secure connection between the hooking device and the body to be hooked.
  • Another object of the present invention is that of providing a device that is easy and cheap to construct.
  • An advantage of the present invention is that of being able to be used in replacement of current devices of known type.
  • the reference number 1 generally indicates a hooking device in accordance with the present invention, realised in different variants.
  • the device 1 is normally used for hooking a body, generally made of metal, provided with a portion with a hole (threaded or provided with an undercut) or a pin portion (threaded or cylindrical with a narrowing section forming an undercut).
  • the aforesaid body is, by means of the device 1, transported by a handling system that moves it along processing and/or storage lines.
  • This type of hooking can however be used for any application that requires hooking bodies provided with threaded holes or pins.
  • the device 1 comprises a cylindrical body for undercut coupling 10,20,30,40, which couples on a body to be hooked C1,C2,C3,C4.
  • a connection system 4 is connected at the top of the device that allows the connection of the device to a transport system also not shown in the figures; this connection system, which depends on the corresponding connection system provided on the transport system, can be an eyelet, as shown in the figures, or a hook, a snap-hook, a threaded pin, a pin with a blind threaded hole, or any other known system for connection to a transport system or in any case a system intended to support bodies to be hooked.
  • the cylindrical body comprises a coupling part 10a,20a,30a,40a, which is securely connected to the connection system 4 and has a surface provided with undercuts, which will be described in more detail herein below illustrating the various embodiments of the device; in all the embodiments illustrated the lateral surface of the coupling part extends over an arc of amplitude less than 180°.
  • the cylindrical body further comprises a centring part 10b,20b,30b,40b which has a smooth lateral surface and a diameter equal to the diameter of the cylindrical body without its undercuts.
  • each undercut can be defined by one or more reliefs, preferably defined by a cylindrical surface of the coupling part 10a,20a,30a,40a and by one or more cavities made in the cylindrical surface, or radial ridges, preferably comprising one or more threads, with a greater diameter than the diameter of the base of the coupling part.
  • the two parts of the cylindrical body are mutually separable by means of a translation that brings them from a working position, in which the two parts are joined together to form the cylindrical body 10,20,30,40, to a position for insertion into the body to be hooked, in which the centring part is always external to the body to be hooked.
  • the working position also corresponds to a resting position assumed by the device when it is not used.
  • the device comprises a central element 3 on the upper part of which the connection system 4 is securely connected and on the lower part of which the coupling part 10a,20a,30a,40a of the cylindrical body is formed.
  • the device further comprises a bushing 2 that is provided with the ability to slide in the axial direction on the central element 3; the centring part 10b,20b,30b,40b of the cylindrical body is securely connected to the lower part of the bushing.
  • a pair of pins 5 is provided on the bushing which are arranged coaxially to each other and are projecting in a radial direction from opposite parts of the bushing 2 so as to be able to be easily gripped with the fingers of one hand.
  • a recess 8 is provided in the central element 3 which is shaped and arranged so as to house the centring part 10b,20b,30b,40b of the body 1 when the device is in the insertion position; the upper surface of the recess also defines the end of stroke of the insertion position.
  • the device comprises means for mutually translating the two parts of the cylindrical body so as to bring them from the working position to the insertion position, and vice versa.
  • the translation takes place by sliding in the axial direction of two flat surfaces that are placed in contact with each other, are respectively arranged on each of the parts of the cylindrical body and define the surface of separation and contact between the parts of the cylindrical body. This translation is performed by sliding the bushing 2 on the central element 3.
  • Elastic means 7 is also provided, shown in the figures in the preferred form of a helical spring, which has the function of keeping the two parts of the cylindrical body in working position and preventing the insertion position from being reached; in other words, the elastic means 7 is compressed by the bushing 2 when the device is moved from the working position (or resting position) to the insertion position, and brings back the device from the insertion position to the working position.
  • the device also comprises a radial abutment surface 6 that is formed on the top of the cylindrical body 10 and defines an end of stroke of the insertion of the cylindrical element in the body to be hooked.
  • the device 1 is adapted to couple with a body C1 to be hooked equipped with a threaded hole
  • the coupling part 10a has a threaded outer lateral surface
  • the centring part 10b is a cylindrical portion that has a smooth outer lateral surface and has a diameter equal to the core diameter of the threaded coupling part.
  • the centring part does not provide undercuts which are instead represented by the ridges of the threading present in the coupling part.
  • the centring part 10b extends with an arc which is explementary to that of the coupling part, i.e. completes a 360° angle with the latter.
  • the centring part 10b is a cylindrical portion, delimited by two planes parallel to the axis of the cylindrical body, whose lateral surface extends over an arc of amplitude less than 180°; in other words, in this embodiment the centring part does not complete the cylindrical body but defines only a part thereof in any case sufficient, as will be better described hereinafter, to carry out the centring of the cylindrical body, even if incomplete, inside the threaded hole provided on the body to be hooked.
  • the coupling part 20a has an internal recess 8 with a threaded inner lateral surface that couples with the threaded pin of the body C2 to be hooked.
  • the centring part 20b has an internal recess 8 with a smooth inner lateral surface having a diameter equal to the nominal diameter of the threaded coupling part. Also in this case, the centring part does not provide undercuts which are instead represented by the ridges of the threading present in the coupling part.
  • the coupling part 30a and the centring part 30b have a diameter equal to the diameter of a hole provided on the body C3 to be hooked.
  • a radial projection 30c is provided on the lower end of the coupling wall 30a. Said radial projection 30c extends outwards from the coupling portion 30a.
  • the hole provided on the body C3 to be hooked must be a through-hole or must provide an inner annular recess in which the radial projection 30c can be inserted following the coupling of the device.
  • the length of the cylindrical body of the device must be such as to allow it to cross the hole or to insert the radial projection 30c in the annular recess of the hole of the body to be hooked.
  • the centring part 30b can be complete, as in the first embodiment, or a cylindrical portion delimited by two planes parallel to the axis of the cylindrical body, as in the third embodiment previously described; this possible embodiment of the device with the centring part 30b shaped like that of the second embodiment is not illustrated in the figures, as it is perfectly intuitive.
  • the coupling part 40a and the centring part 40b share an internal hole with a diameter equal to the diameter of a pin provided on the body C4 to be hooked; the lower end of the coupling part 40a is provided with a radial projection 40c.
  • Said projection 40c extends, with a radial trend, from the coupling part 40a towards the centring part 40b.
  • the pin provided on the body C4 to be hooked must provide a narrowing section on the inner diameter so as to form an inner annular recess in which the radial projection 40c can be inserted following the coupling with the device.
  • the length of the cylindrical body 40 of the device must be such as to allow it to cross the entirely cylindrical portion of the pin such that the radial projection 40c can couple in the annular recess of the pin of the body C4 to be hooked.
  • the centring part 40b can be complete, as in the first embodiment, or a cylindrical portion delimited by two planes parallel to the axis of the cylindrical body, as in the third embodiment previously described; this possible embodiment of the device with the centring part 40b shaped like that of the third embodiment is not illustrated in the figures, as it is perfectly intuitive.
  • the device is normally in the resting position, which as mentioned above corresponds to the working position.
  • the pins 5 are grasped and the bushing 2 is pulled upwards, which is integral with the centring part that then disengages from the cylindrical part of the device; the lifting terminates when the centring part abuts on the upper surface of the recess 8 and the device is located in the insertion position.
  • the coupling part is coupled to the body to be hooked; given that the coupling part of the device extends over an arc with an amplitude less than 180° it is possible to couple it to the body to be hooked without its undercuts interfering with the elements of the body itself.
  • the coupling portion is inserted slightly offset towards the inside of the holes provided on the body to be coupled; in this way the threads of the parts 10a and 20a do not interfere with the threads of the threaded hole present in the body to be hooked and can thus be freely inserted; likewise the annular projection 30c or 40c does not interfere with the inner surface of the hole present in the body to be hooked (or narrowing section of the pin) and can thus be freely inserted until it exits the hole or arrives at its annular groove.
  • the coupling part is inserted slightly offset towards the outside of the pin provided on the body to be coupled; in this way the threads of the part 20a do not interfere with the threads of the threaded pin present in the body to be hooked and the part 20a can therefore be freely fitted on the pin.
  • the descent of the centring part 10b,20b,30b,40b returns the cylindrical body 10,20,30,40 in axis so that the undercuts present in the coupling part 10a,20a,30a,40a are coupled with the corresponding elements present in the body to be hooked and, interacting with them, thus ensure the secure connection between the hooking device and the body to be hooked.
  • the cylindrical body 10,20,30,40 is perfectly coupled and coaxial with the corresponding element present on the body to be hooked without creating clearances (obviously except for those envisaged in the processing phase) that can cause oscillations or unwanted movements of the coupling.
  • the bushing 2 By acting on the pins 5, the bushing 2 is pulled upwards which causes the raising of the centring part and its disengagement from the body to be hooked; causing a slight misalignment of the coupling part then disengages this part of the body to be hooked.
  • the spring 7 brings back the device, all the parts of which are completely released from the body to be hooked, to its resting position (working), thus arranging the device for a new use.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
EP19196351.1A 2018-09-20 2019-09-10 Hängevorrichtung mit unterschnittener kupplung Withdrawn EP3626672A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT201800008759 2018-09-20

Publications (1)

Publication Number Publication Date
EP3626672A1 true EP3626672A1 (de) 2020-03-25

Family

ID=64557056

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19196351.1A Withdrawn EP3626672A1 (de) 2018-09-20 2019-09-10 Hängevorrichtung mit unterschnittener kupplung

Country Status (1)

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EP (1) EP3626672A1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139278A (en) * 1983-05-05 1984-11-07 Charcon Tunnels Ltd Connector device
JPH05306091A (ja) * 1992-05-01 1993-11-19 Kurosaki Refract Co Ltd 螺子部を有する部材の取扱い装置
US20170226702A1 (en) * 2014-08-29 2017-08-10 Illinois Tool Works Inc. Lifting of concrete components

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139278A (en) * 1983-05-05 1984-11-07 Charcon Tunnels Ltd Connector device
JPH05306091A (ja) * 1992-05-01 1993-11-19 Kurosaki Refract Co Ltd 螺子部を有する部材の取扱い装置
US20170226702A1 (en) * 2014-08-29 2017-08-10 Illinois Tool Works Inc. Lifting of concrete components

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