EP0000367A1 - Safety hook - Google Patents

Safety hook Download PDF

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Publication number
EP0000367A1
EP0000367A1 EP78100293A EP78100293A EP0000367A1 EP 0000367 A1 EP0000367 A1 EP 0000367A1 EP 78100293 A EP78100293 A EP 78100293A EP 78100293 A EP78100293 A EP 78100293A EP 0000367 A1 EP0000367 A1 EP 0000367A1
Authority
EP
European Patent Office
Prior art keywords
hook
eyelet
spring
held
shaft
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Withdrawn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
EP78100293A
Other languages
German (de)
French (fr)
Inventor
Karl-Heinz Schäfer
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.)
SPRENGER FA HERM
Herm Sprenger GmbH and Co KG
Original Assignee
SPRENGER FA HERM
Herm Sprenger GmbH and Co KG
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
Priority claimed from DE19777722117 external-priority patent/DE7722117U/en
Application filed by SPRENGER FA HERM, Herm Sprenger GmbH and Co KG filed Critical SPRENGER FA HERM
Publication of EP0000367A1 publication Critical patent/EP0000367A1/en
Withdrawn legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16GBELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G15/00Chain couplings, Shackles; Chain joints; Chain links; Chain bushes
    • F16G15/04Quickly-detachable chain couplings; Shackles chain links with rapid junction means are classified according to the corresponding kind of chain
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B45/00Hooks; Eyes
    • F16B45/04Hooks with sliding closing member
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B45/00Hooks; Eyes
    • F16B45/04Hooks with sliding closing member
    • F16B45/049Hooks with sliding closing member provided with means biasing the closing member
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B45/00Hooks; Eyes
    • F16B45/04Hooks with sliding closing member
    • F16B45/053Hooks with sliding closing member provided with a cavity in a shank of the hook forming a track or way for the closing member

Definitions

  • the invention relates to a snap hook with a hook mouth which can be closed by a spring-loaded slide guided on the shaft of the hook body and a ring eyelet rotatably connected to the hook shaft.
  • Such snap hooks are often used in connection with galvanized chains or the like, the last chain link of which is connected to the eyelet.
  • the chain and hook body usually consist of different metal alloys, so that they cannot be galvanized together.
  • the hook body is usually a casting, for example from a die-cast zinc.
  • the chain links are made of forged material.
  • a carabiner in which spring-loaded locking bolts are guided in a laterally guided longitudinal bore in the hook shaft.
  • the bore is closed to the outside by an injected plate on which the compression spring is supported.
  • the ring eyelet is rotatably mounted on the outside of the cylindrical hook shaft and held with a collar on the eye which engages in an annular groove on the hook shaft.
  • a hole and a side slot are to be made for receiving and guiding the locking bolt, and the annular groove is also to be formed at the end of the shaft.
  • the preparation of the hook body is therefore complex.
  • Corresponding hook bodies manufactured in the casting process or as a stamped part are therefore to be provided with subsequent machining operations de corresponding receptacles and guides.
  • the object of the invention is to simplify the manufacture of a snap hook of the type mentioned at the outset, with machining or Impairment of the already galvanized individual parts should be avoided during assembly.
  • such a snap hook is characterized by a hook body divided parallel to the hook plane, between the mirror-symmetrical, interconnected body halves of which both the locking slide and the connecting bolt of the eyelet are held.
  • the cylindrical locking slide which is guided in a bore in the hook shaft against the pressure of a spring, engages in an end-side bore on the hook end in the locked state.
  • the eyelet can be rotatably held with the head of a bolt attached to the eyelet in a groove-like undercut formed between the body halves.
  • the body halves can be produced in a favorable manner as pressed or cast parts, the necessary recesses in the interior of the hook body already being able to be formed.
  • the parts to be used between the two body halves namely the spring-loaded locking slide and the connecting bolt of the eyelet, are inserted.
  • the two halves of the body can be connected, for example, by riveting or welding. The assembly of the snap hook is extremely easy.
  • the hook body designated as a whole by the number 1 is divided parallel to the hook plane into the mirror-symmetrical body halves 1a and 1b.
  • the groove-like undercut 15 for receiving the head 22 of the Ver binding bolt 21 is formed on the eyelet 2 and the blind bore 13 in the front end of the hook.
  • the eyelet can have any shape.
  • the two body halves 1a and 1b can be connected to one another.
  • the bores 12 through which rivets can be guided serve this purpose.
  • the bolt head 22 of the ring eyelet 2 rotatably rests.
  • the cylindrical locking slide 3 can be displaced to a limited extent against the pressure of the spring 4 in the guide bore 14 with the outwardly projecting grip element 31 in the recesses 17 formed between the two body halves.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)

Abstract

In the case of a chromium-plated or nickel-plated safety hook, the mouth 11 of the hook can be closed by means of a spring-loaded slide 3 guided on the shank of the hook body 1. A circular eye 2 is held in a rotatable manner in the hook body 1, at the rear end of the latter. For simplifying the production of the safety hook, its body is divided into mirror-image symmetrical body halves 1a, 1b, parallel to the plane of the hook, which are produced in an advantageous manner and can be connected to one another by welded or riveted connections after insertion of the closing parts 3, 4. Both the closing slide 3 and a connection bolt 21, 22 of the circular eye 2 are held between the mutually connected body halves 1a, 1b. <IMAGE>

Description

Die Erfindung betrifft einen Karabinerhaken mit einem durch einen am Schaft des Hakenkörpers geführten, federbelasteten Schieber verschließbaren Hakenmaul und einer mit dem Hakenschaft drehbar verbundenen Ringöse.The invention relates to a snap hook with a hook mouth which can be closed by a spring-loaded slide guided on the shaft of the hook body and a ring eyelet rotatably connected to the hook shaft.

Derartige Karabinerhaken, deren Hakenmaul mit einem federbelasteten Verschlußbolzen verschlossen ist, werden häufig in Verbindung mit galvanisierten Ketten oder dergleichen verwendet, deren letztes Kettenglied mit der Ringöse verbunden wird. Kette und Hakenkörper bestehen dabei in der Regel aus unterschiedlichen Metallegierungen, so daß sie nicht miteinander galvanisierbar sind. Der Hakenkörper ist in der Regel ein Gußteil, beispielsweise aus einem Zink-Druckguß. Die Kettenglieder bestehen aus geschmiedetem Material.Such snap hooks, the hook mouth of which is closed with a spring-loaded locking bolt, are often used in connection with galvanized chains or the like, the last chain link of which is connected to the eyelet. The chain and hook body usually consist of different metal alloys, so that they cannot be galvanized together. The hook body is usually a casting, for example from a die-cast zinc. The chain links are made of forged material.

Nach der Galvanisierung der Einzelteile erfolgt die Montage.After the galvanizing of the individual parts, assembly takes place.

der/ Bekannt ist ein Karabinerhaken, bei der federbelastete Verschlußbolzen in einer seitlich geführten Längsbohrung im Hakenschaft geführt ist. Die Bohrung ist dabei nach außen durch eine eingesprengte Platte verschlossen, an der sich die Druckfeder abstützt. Die Ringöse ist von außen auf dem zylindrischen Hakenschaft drehbar aufgesetzt und mit einem Kragen an der Öse gehalten, der in eine Ringnut am Hakenschaft eingreift.A carabiner is known, in which spring-loaded locking bolts are guided in a laterally guided longitudinal bore in the hook shaft. The bore is closed to the outside by an injected plate on which the compression spring is supported. The ring eyelet is rotatably mounted on the outside of the cylindrical hook shaft and held with a collar on the eye which engages in an annular groove on the hook shaft.

In dem eigentlichen Hakenkörper sind für die Aufnahme und die Führung des Verschlußbolzens eine Bohrung und ein seitlicher Schlitz anzubringen, außerdem ist am Ende des Schaftes die Ringnut auszubilden. Die Anfertigung des Hakenkörpers ist daher aufwendig. In entsprechende im Gußverfahren oder als Stanzteil hergestellte Hakenkörper sind daher mit nachgeschalteten Bearbeitungsvorgängen de entsprechenden Aufnahmen und Führungen vorzusehen.In the actual hook body, a hole and a side slot are to be made for receiving and guiding the locking bolt, and the annular groove is also to be formed at the end of the shaft. The preparation of the hook body is therefore complex. Corresponding hook bodies manufactured in the casting process or as a stamped part are therefore to be provided with subsequent machining operations de corresponding receptacles and guides.

Die Aufgabe der Erfindung besteht darin, einen Karabinerhaken der eingangs genannten Art in seiner Herstellung zu vereinfachen, wobei eine Bearbeitung bzw. Beeinträchtigung der bereits galvanisierten Einzelteile bei der Montage vermieden werden soll.The object of the invention is to simplify the manufacture of a snap hook of the type mentioned at the outset, with machining or Impairment of the already galvanized individual parts should be avoided during assembly.

Zur Lösung der Erfindungsaufgabe ist ein solcher Karabinerhaken gekennzeichnet durch einen parallel zur Hakenebene geteilten Hakenkörper, zwischen dessen spiegelsymmetrischen, miteinander verbundenen Körperhälften sowohl der Verschlußschieber als auch der Verbindungsbolzen der Ringöse gehalten sind.To achieve the object of the invention, such a snap hook is characterized by a hook body divided parallel to the hook plane, between the mirror-symmetrical, interconnected body halves of which both the locking slide and the connecting bolt of the eyelet are held.

Nach einer bevorzugten Ausführungsart der Erfindung greift der in einer Bohrung im Hakenschaft entgegen dem Druck einer Feder geführte zylindrische Verschlußschieber im Verschlußzustand in eine stirnseitige Bohrung am Hakenende ein. Die Ringöse kann dabei mit dem Kopf eines an der Öse befestigten Bolzens drehbar in einer zwischen den Körperhälften gebildeten nutartigen Hinterschneidung drehbar gehalten sein.According to a preferred embodiment of the invention, the cylindrical locking slide, which is guided in a bore in the hook shaft against the pressure of a spring, engages in an end-side bore on the hook end in the locked state. The eyelet can be rotatably held with the head of a bolt attached to the eyelet in a groove-like undercut formed between the body halves.

Aufgrund der spiegelsymmetrischen Zweiteilupg des Hakenkörpers lassen sich die Körperhälften in günstiger Weise als Press - oder Gußteile herstellen, wobei die notwendigen Ausnehmungen im Inneren des Hakenkörpers bereits mit eingeformt werden können. Nach der Galvanisierung der Einzelteile werden die zwischen den beiden Körperhälften einzusetzenden Teile, nämlich der federbelastete Verschlußschieber und der Verbindungsbolzen der Ringöse, eingelegt. Die Verbindung der beiden Körperhälften kann beispielsweise durch Vernietung oder Verschweißung erfolgen. Die Montage des Karabinerhakens ist dadurch äußerst einfach.Because of the mirror-symmetrical two-part part of the hook body, the body halves can be produced in a favorable manner as pressed or cast parts, the necessary recesses in the interior of the hook body already being able to be formed. After the galva Nization of the individual parts, the parts to be used between the two body halves, namely the spring-loaded locking slide and the connecting bolt of the eyelet, are inserted. The two halves of the body can be connected, for example, by riveting or welding. The assembly of the snap hook is extremely easy.

Anhan eines abgebildeten Ausführungsbeispieles wird die Erfindung im folgenden näher erläutert: Es zeigt

  • Figur 1 die Vorderansicht eines Hakens,
  • Figur 2 die Ansicht der Innenseite der einen Körperhälfte, Figur 3 die Innenansicht der anderen Hakenkörperhälfte und Figur 4 die Ansicht der Ringöse mit dem Verbindungsbolzen.
Based on an illustrated embodiment, the invention is explained in more detail below: It shows
  • 1 shows the front view of a hook,
  • 2 shows the view of the inside of one half of the body, FIG. 3 shows the inside of the other half of the hook body and FIG. 4 shows the view of the eyelet with the connecting bolt.

Der insgesamt mit der Ziffer 1 bezeichnete Hakenkörper ist parallel zur Hakenebene in die spiegelsymmetrischen Körperhälften 1a und 1b aufgeteilt. Wie aus den Figuren 2 und 3 erkennbar, sind an den Innenseiten dieser Körperhälften bereits die Bohrung 14 zur Aufnahme des Verschlußschiebers 3 und der Druckfeder 4, die nutartige Hinterschneidung 15 zur Aufnahme des Kopfes 22 des Verbindungsbolzens 21 an der Ringöse 2 und die Sackbohrung 13 im stirnseitigen Ende des Hakens eingeformt. Die Ringöse kann dabei beliebige Form besitzen.The hook body designated as a whole by the number 1 is divided parallel to the hook plane into the mirror-symmetrical body halves 1a and 1b. As can be seen from Figures 2 and 3, on the inside of these body halves are already the bore 14 for receiving the slide valve 3 and the compression spring 4, the groove-like undercut 15 for receiving the head 22 of the Ver binding bolt 21 is formed on the eyelet 2 and the blind bore 13 in the front end of the hook. The eyelet can have any shape.

Nach den Einlegen der genannten Teile können die beiden Körperhälften 1a und 1b miteinander verbunden werden. Dazu dienen die Bohrungen 12, durch die Niete hindurchgeführt werden können.After inserting the parts mentioned, the two body halves 1a and 1b can be connected to one another. The bores 12 through which rivets can be guided serve this purpose.

In der Hinterschneidung 15 ruht drehbar der Bolzenkopf 22 der Ringöse 2. Der zylindrische Verschlußschieber 3 ist entgegen dem Druck der Feder 4 in der Führungsbohrung 14 mit dem nach außen ragenden Griffelement 31 in der zwischen den beiden Körperhälften gebildeten Ausnehmungen 17 begrenzt verschiebbar.In the undercut 15, the bolt head 22 of the ring eyelet 2 rotatably rests. The cylindrical locking slide 3 can be displaced to a limited extent against the pressure of the spring 4 in the guide bore 14 with the outwardly projecting grip element 31 in the recesses 17 formed between the two body halves.

In der Verschlußstellung greift das das Hakenmaul 11 verschließende Ende des Schiebers 3 in die Sackbohrung 13 ein, die stirnseitig am Hakenende gebildet ist.In the closed position, the end of the slide 3 which closes the hook jaw 11 engages in the blind bore 13 which is formed on the end face at the hook end.

Claims (3)

1. Karabinerhaken mit einem durch einen am Schaft des Hakenkörpers geführten, federbelasteten Schieber verschließbaren Hakenmaul und einer mit dem Hakenschaft drehbar verbundenen Ringöse, gekennzeichnet durch einen parallel zur Hakenebene geteilten Hakenkörper (1), zwischen dessen spiegelsymmetrischen, miteinander verbundenen Körperhälften (1a, 1b) sowohl der Verschlußschieber (3) als auch der Verbindungsbolzen (21,22) der Ringöse (2) gehalten sind.1. carabiner hook with a hook jaw which can be closed by a spring-loaded slide guided on the shaft of the hook body and a ring eyelet rotatably connected to the hook shaft, characterized by a hook body (1) divided parallel to the hook plane, between its mirror-symmetrical, interconnected body halves (1a, 1b) both the locking slide (3) and the connecting bolt (21, 22) of the ring eyelet (2) are held. 2. Karabinerhaken nach Anspruch 1, dadurch gekennzeichnet, daß der in eter Bohrung (14) im Hakenschaft (16) entgegen dem Druck einer Feder (4) geführte zylindrische Verschlußschieber (3) im Verschlußzustand in eine stirnseitige Bohrung (13) am Hakenende eingreift.2. Snap hook according to claim 1, characterized in that the eter bore (14) in the hook shaft (16) against the pressure of a spring (4) guided cylindrical locking slide (3) engages in the locked state in an end hole (13) at the hook end. 3. Karabinerhaken nach Anspruch 1, dadurch gekennzeichnet, daß die Ringöse (2) mit dem Kopf (22) eines an der Öse befestigten Bolzens (21) drehbar in einer zwischen den Körperhälften (1a, 1b) gebildeten nutartigen Hinterschneidung (15) drehbar gehalten ist.3. snap hook according to claim 1, characterized in that the eyelet (2) with the head (22) of a bolt attached to the eyelet (21) rotatably held in a groove-like undercut (15) formed between the body halves (1a, 1b) is.
EP78100293A 1977-07-14 1978-07-03 Safety hook Withdrawn EP0000367A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE7722117U 1977-07-14
DE19777722117 DE7722117U (en) 1977-07-14 Snap hook

Publications (1)

Publication Number Publication Date
EP0000367A1 true EP0000367A1 (en) 1979-01-24

Family

ID=6680761

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78100293A Withdrawn EP0000367A1 (en) 1977-07-14 1978-07-03 Safety hook

Country Status (1)

Country Link
EP (1) EP0000367A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105823936A (en) * 2016-05-10 2016-08-03 国网山东省电力公司莱州市供电公司 Telescopic current transformer rated ratio testing device
US20180221824A1 (en) * 2015-07-30 2018-08-09 Evonik Fibres Gmbh Flexibly Adaptable Membrane Cartridges for the Separation of Fluids
CN111520394A (en) * 2020-03-30 2020-08-11 遵义宏港机械有限公司 Clasp and using method thereof
CN108477763B (en) * 2013-01-05 2021-03-09 力特亿泽公司 Locking shackle

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE17387C (en) * H. BEZER und PH. A. THOMAS in London Innovations in detachable chain connections
US1598684A (en) * 1926-04-26 1926-09-07 Peter W Jensen Snap hook
CH162541A (en) * 1932-08-20 1933-06-30 Christen Meinrad Coupling device for chains.
CH218295A (en) * 1941-06-27 1941-12-15 Union Ag Safety lock, especially for cattle binding chains.
US2568939A (en) * 1949-04-19 1951-09-25 William A Wilson Safety hook
US3186055A (en) * 1963-05-08 1965-06-01 Norco Inc Shackle coupling
GB1182603A (en) * 1966-03-09 1970-02-25 Parsons Chain Company Ltd Self-Releasing Load Sensing Hook
GB1240092A (en) * 1970-01-08 1971-07-21 Dynamic Tools Ltd A swivel connector

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE17387C (en) * H. BEZER und PH. A. THOMAS in London Innovations in detachable chain connections
US1598684A (en) * 1926-04-26 1926-09-07 Peter W Jensen Snap hook
CH162541A (en) * 1932-08-20 1933-06-30 Christen Meinrad Coupling device for chains.
CH218295A (en) * 1941-06-27 1941-12-15 Union Ag Safety lock, especially for cattle binding chains.
US2568939A (en) * 1949-04-19 1951-09-25 William A Wilson Safety hook
US3186055A (en) * 1963-05-08 1965-06-01 Norco Inc Shackle coupling
GB1182603A (en) * 1966-03-09 1970-02-25 Parsons Chain Company Ltd Self-Releasing Load Sensing Hook
GB1240092A (en) * 1970-01-08 1971-07-21 Dynamic Tools Ltd A swivel connector

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108477763B (en) * 2013-01-05 2021-03-09 力特亿泽公司 Locking shackle
US20180221824A1 (en) * 2015-07-30 2018-08-09 Evonik Fibres Gmbh Flexibly Adaptable Membrane Cartridges for the Separation of Fluids
CN105823936A (en) * 2016-05-10 2016-08-03 国网山东省电力公司莱州市供电公司 Telescopic current transformer rated ratio testing device
CN105823936B (en) * 2016-05-10 2018-04-03 国网山东省电力公司莱州市供电公司 A kind of extension type current transformer ratio test device
CN111520394A (en) * 2020-03-30 2020-08-11 遵义宏港机械有限公司 Clasp and using method thereof

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Inventor name: SCHAEFER, KARL-HEINZ