EP0004586A2 - Mousqueton - Google Patents

Mousqueton Download PDF

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Publication number
EP0004586A2
EP0004586A2 EP79100808A EP79100808A EP0004586A2 EP 0004586 A2 EP0004586 A2 EP 0004586A2 EP 79100808 A EP79100808 A EP 79100808A EP 79100808 A EP79100808 A EP 79100808A EP 0004586 A2 EP0004586 A2 EP 0004586A2
Authority
EP
European Patent Office
Prior art keywords
hook
clamping piece
hook body
rope
brake
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
EP79100808A
Other languages
German (de)
English (en)
Other versions
EP0004586B1 (fr
EP0004586A3 (en
Inventor
Wolfgang Kutschera
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.)
HENSSGEN KARABINERHAKEN GmbH
Original Assignee
HENSSGEN KARABINERHAKEN GmbH
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 DE19782825780 external-priority patent/DE2825780C3/de
Application filed by HENSSGEN KARABINERHAKEN GmbH filed Critical HENSSGEN KARABINERHAKEN GmbH
Publication of EP0004586A2 publication Critical patent/EP0004586A2/fr
Publication of EP0004586A3 publication Critical patent/EP0004586A3/xx
Application granted granted Critical
Publication of EP0004586B1 publication Critical patent/EP0004586B1/fr
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
    • A62B35/04—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion incorporating energy absorbing means

Definitions

  • the invention relates to a snap hook, with a hook body to which a drop brake is attached, in which a rope is clamped between a brake body and a clamping piece arranged thereon and only slips frictionally when a clamping force determined by the clamping piece is exceeded.
  • Snap hooks are used to fasten ropes, belts, straps, chains to appropriate devices or attachment points.
  • a snap hook is generally known which has an eyelet at one end for connecting a rope or a belt or a fitting part. The rope must be knotted or spliced for fastening.
  • a snap hook of the type mentioned is known (DE-GM 75 07 128), in which a rope is inserted into a rope channel is arranged around a cable brake pin. At one end of a brake body there is a suspension eye, which can be assembled with an eye of the snap hook in order to attach the drop brake to a scaffolding, for example.
  • an adjustable clamping piece is available across the rope channel.
  • the drop brake forms a device that moves with the carabiner hook and is difficult to handle.
  • the total length of the drop brake and snap hook is considerable and the total weight is comparatively large, so that the drop brake is usually used on the side of the scaffolding, which can lead to operating difficulties.
  • the adjustable clamping piece of the known drop brake has resulted in the setting required for the rope used being incorrectly made or changed, so that the function of the drop brake has been disturbed.
  • the invention is therefore based on the object of improving a snap hook provided with a snap hook of the type mentioned above, on the one hand avoiding incorrect settings of the drop brake in which the rope is clamped too strongly or too weakly, and on the other hand simplifying the handling of the drop brake is that the secured person's desire to change the setting of the drop brake in order to improve its manageability does not appear at all.
  • the drop brake is integrated in the snap hook.
  • the rope braking point takes the place of the eyelet of the known snap hook, so that the length of the K arabiner hook provided with the drop brake need only be increased insignificantly. Due to the non-adjustable clamping piece attached to the hook body, the handling of the snap hook provided with the drop brake is decidedly easier, apart from the fact that the structure of the snap hook is considerably simplified.
  • a decisive advantage is that the hook body and the one or more clamping pieces together form a hook handle enclosing the braking point for the rope and / or a band. This further simplifies the snap hook and its handling.
  • a rope or band deflection bar which is assembled with the hook body and which is either arranged interchangeably at the braking point or is firmly assembled with the hook body or the clamping piece.
  • An exchangeable deflection bar which is assembled with the hook body and thus arranged inside the hook handle, allows the use in diameter and / or in the form of different deflection bars to adapt the action of the drop brake to different rope strengths, so that the length of the case Brake provided snap hook can remain limited, so does not have to be increased because of an additional adjusting member.
  • a deflection bar which is firmly assembled with the hook body simplifies the construction of the snap hook or the clamping piece and can be produced in one piece with these parts.
  • the cable or tape guide channel has an end at the lower end of the hook body between the latter and a clamping piece and a further end either on the side of the hook body opposite the clamping piece and / or at the upper end of the clamping piece. If the two end openings of the channel are arranged on one side of the hook body, this can advantageously be designed without a deflection web.
  • the person 10 at risk of falling who is exposed at an exposed location 11 wears a belt 12 to which a snap hook 14 provided with a fall brake 13 is connected.
  • a rope 15 connects the person 10 via the snap hook 14 to a scaffolding or another type of carrier 16.
  • the rope end 15 'on the person side is pulled by the fall brake 13 and slidably coupled to the rope 15.
  • the snap hook 14 has a hook body 17 with an opening which is closed by a catch 18.
  • the catch must be pivoted inward in the direction of the hook body around the hinge pin 19 against the force of a spring located in its interior, so that the hook opening is cleared.
  • a screw closure 20 is provided in the form of a threaded sleeve comprising the free end of the hook body 17 in its one end position which can be screwed onto a thread of the catch 18.
  • the upper end of the hook body 17 is formed by a brake body 21 which is integral with the hook body.
  • Fig. 3 shows the shell-like structure of the cable coupling part, which cross-sections adapted to the strength of the hook body without further ado allowed.
  • the brake body 21 forms part of the cable channel 22, the other part of which is formed by the clamping piece 23.
  • the cable channel is designed in the form of a cable loop and has an inlet 24 and an outlet 25 at the free end 26 of the brake body or vice versa.
  • the diameter or the width of the cable duct is matched to the diameter of the cable 15.
  • the cable loop head 27 of the cable channel permits the arrangement of a cable deflection web 28 in its interior. The result is a J-shaped shape of the cable duct.
  • the circular cylindrical rope deflecting web 28 is flattened on both ends at its ends and engages with the flats 29 in correspondingly wide slots 30 of the brake body 21 or 31 of the clamping piece 23.
  • the slots are slightly longer than the diameter of the rope deflecting web, so that it is limited movable in the direction of the snap hook longitudinal axis 38.
  • the hook body 17 and the hook handle 32 formed by the brake body 21 and the clamping piece 23 are rigidly connected to one another and arranged longitudinally in one plane.
  • the hook handle is kept flat according to the hook body and its greatest width does not exceed the greatest width of the hook body.
  • Grip recesses 33 are arranged in the narrow sides of the hook handle above and below the rope loop head 27. The recessed grips improve the handiness of the snap hook. The recessed grips also save material and thus reduce the weight of the snap hook.
  • the assembly of the snap hook or the brake body with the cover shell or the clamping piece 23 takes place with the aid of the screws 34, which are screwed through bores 35 of the clamping piece into threaded bores of the hook body.
  • the screw connections are arranged with the deflecting web 28 approximately in a plane which extends obliquely to the longitudinal axis 38 of the snap hook.
  • the screw on the hook body side is arranged facing away from the catch of the snap hook and the screw facing away from the hook body is arranged in an eye of the hook handle located to the side of the cable channel.
  • the brake body 21 has a strip 36 projecting outside the cable channel in the direction of the cover shell and the hook body has a correspondingly designed groove 37 so that the hook body and the clamping piece are positively assembled in the longitudinal direction of the snap hook, which relieves the screws 34.
  • the rope 15 can be clamped so strongly in the rope channel 22 by the drop brake that slipping is only possible if a predetermined load on the hook is exceeded on the hook. Then the rope end 15 'slides into the rope channel 22 and around the deflection bar 28. It rubs against the boundary walls of the rope channel 22 and on the deflection bar 28 and on the rope sections touching each other. The deflection bar is pulled upwards and thus increases the rope friction by clamping.
  • the length of the cable channel above the rope loop head is the E rfor- dernissen adapted and yet can be kept short, that no brake force adjustment bolt needs to be provided in this area. Rather, to regulate the braking force, it may be sufficient for the cable brake pin 28 to be exchanged for another cable brake pin, the diameter and / or the shape of which are changed in accordance with the requirements.
  • the snap hook 40 shown in FIGS. 4.5 has a hook body 41, the lower end of which has flats 42 on both sides. At the lower end of the brake body 43 formed in this way, the rope 15 is looped around the deflection web 44, which is formed by the recess 45. Clamping pieces 46 are present on both sides of the flattened part of the hook body 41. These clamping pieces enclose the cable coupling part 43 between them and are fastened to one another with the screws 47. The upper screws penetrate the cable coupling part 43 through the bores 48, while the lower screws 47 are arranged below the deflection bar 44 which is kept short downwards. Each clamping piece 46 has a recess 50 in adaptation to the deflection web. This and / or the recesses of the lower projections 51 form a cable channel. In this, the two strands of the rope 15 fed in and out at the bottom run side by side to below the deflection web 44, which is wrapped in a twisted manner.
  • the carabiner 42 shown in FIGS. 6, 7 differs from the carabiner 41 of FIG. 4.5 only in that it is adapted for braking a band 53 is.
  • the deflection web 44 forms, together with the adjacent surfaces of the recesses 50 of the clamping pieces 46, a braking point.
  • the band can also be braked by the projections 51 which clamp the band 53.
  • a channel for lateral guidance of the band can be omitted.
  • the snap hook 54 shown in FIG. 8 has a deflection web 55, which is just as long downward as the two clamping pieces 46. This increases the braking area between the deflection web and the clamping pieces.
  • the snap hook 56 shown in FIG. 9 there is only one clamping piece 46 and the snap hook is provided with threaded bores 57 for screwing the clamping piece.
  • the band is guided between the deflection web 58 and the clamping piece and through the recess 59 on the other side of the snap hook, which is rounded there accordingly that the band can not only run downwards, but also as shown, upwards.
  • the braking surface is reduced by using only one clamping piece.
  • the corrugated surface of the clamping piece 46 and the deflection web 58 increases the braking surface.
  • the snap hook 60 has projections 63 which engage on both sides of the band 53 in corresponding recesses in the clamping piece 46 '. If the band 53 is loaded downward under deflection around the deflection web 64, a force transmission takes place essentially via the projections 63. Such relief of the screw connections can be applied to all snap hooks of FIGS. 4 to 9.
  • a band instead of a band, several thin ropes can also be arranged side by side and clamped in a defined manner using the snap hooks.
  • the strength of the clamping of a rope or band depends on the force exerted by the screw connection, or on the dimensioning of a rope or band channel, or on the setting of the contact force of the springs 65 e.g. 10 by means of the screws 47.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Emergency Lowering Means (AREA)
EP19790100808 1978-03-28 1979-03-16 Mousqueton Expired EP0004586B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE2813375 1978-03-28
DE2813375 1978-03-28
DE2825780 1978-06-13
DE19782825780 DE2825780C3 (de) 1978-06-13 1978-06-13 Karabinerhaken mit Fallbremse

Publications (3)

Publication Number Publication Date
EP0004586A2 true EP0004586A2 (fr) 1979-10-17
EP0004586A3 EP0004586A3 (en) 1979-10-31
EP0004586B1 EP0004586B1 (fr) 1981-07-29

Family

ID=25774160

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19790100808 Expired EP0004586B1 (fr) 1978-03-28 1979-03-16 Mousqueton

Country Status (1)

Country Link
EP (1) EP0004586B1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992013601A1 (fr) * 1991-02-06 1992-08-20 Henry Crawford Dispositif d'absorption d'energie
GB2435249A (en) * 2006-02-16 2007-08-22 Peter Barnett Rubber band holder for a bicycle
WO2010093388A1 (fr) * 2009-02-10 2010-08-19 Capital Safety Group (Australia) Pty Limited Mousqueton adaptable après coup
US8181313B2 (en) 2009-02-10 2012-05-22 Capital Safety Group (Australia) Pty Limited Retrofittable hook device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE23198C (de) * GEBRÜDER LOHNER in Thieringen, O./A. Balingen, Württemberg Karabinerhaken für Feuerwehren
DE7507128U (de) * 1975-07-17 Mittelmann & Co Armaturenwerk Fallbremse
FR2359779A1 (fr) * 1976-07-29 1978-02-24 Gestion Indle Immobiliere Et Crochet de manutention utilisable comme moyen de sauvetage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE23198C (de) * GEBRÜDER LOHNER in Thieringen, O./A. Balingen, Württemberg Karabinerhaken für Feuerwehren
DE7507128U (de) * 1975-07-17 Mittelmann & Co Armaturenwerk Fallbremse
FR2359779A1 (fr) * 1976-07-29 1978-02-24 Gestion Indle Immobiliere Et Crochet de manutention utilisable comme moyen de sauvetage

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992013601A1 (fr) * 1991-02-06 1992-08-20 Henry Crawford Dispositif d'absorption d'energie
GB2435249A (en) * 2006-02-16 2007-08-22 Peter Barnett Rubber band holder for a bicycle
WO2010093388A1 (fr) * 2009-02-10 2010-08-19 Capital Safety Group (Australia) Pty Limited Mousqueton adaptable après coup
US8181313B2 (en) 2009-02-10 2012-05-22 Capital Safety Group (Australia) Pty Limited Retrofittable hook device
US8186023B2 (en) 2009-02-10 2012-05-29 Capital Safety Group (Australia) Pty Limited Retrofittable hook device
AU2009238376B2 (en) * 2009-02-10 2014-05-29 3M Innovative Properties Company Retrofittable hook device

Also Published As

Publication number Publication date
EP0004586B1 (fr) 1981-07-29
EP0004586A3 (en) 1979-10-31

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