EP0345175A1 - Selbstblockierendes Seileisen - Google Patents

Selbstblockierendes Seileisen Download PDF

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Publication number
EP0345175A1
EP0345175A1 EP89420189A EP89420189A EP0345175A1 EP 0345175 A1 EP0345175 A1 EP 0345175A1 EP 89420189 A EP89420189 A EP 89420189A EP 89420189 A EP89420189 A EP 89420189A EP 0345175 A1 EP0345175 A1 EP 0345175A1
Authority
EP
European Patent Office
Prior art keywords
descender
hole
rope
user
attachment zone
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Withdrawn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
EP89420189A
Other languages
English (en)
French (fr)
Inventor
Ludger Simond
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.)
Ludger Simond SA
Original Assignee
Ludger Simond 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 Ludger Simond SA filed Critical Ludger Simond SA
Publication of EP0345175A1 publication Critical patent/EP0345175A1/de
Withdrawn legal-status Critical Current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
    • A62B1/00—Devices for lowering persons from buildings or the like
    • A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B1/00—Devices for lowering persons from buildings or the like
    • A62B1/02—Devices for lowering persons from buildings or the like by making use of rescue cages, bags, or the like
    • A62B1/04—Single parts, e.g. fastening devices
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B29/00—Apparatus for mountaineering
    • A63B29/02—Mountain guy-ropes or accessories, e.g. avalanche ropes; Means for indicating the location of accidentally buried, e.g. snow-buried, persons

Definitions

  • the present invention relates to descenders used in particular for the practice of mountaineering and speleology.
  • the descenders usually used are devices making it possible to slide along a rope while producing a certain braking.
  • the user clings to the descender, the descender itself being adapted on a rope, so that the user can descend along the rope, the upper end of which is attached to a fixed point.
  • a descender in 8 comprises a one-piece body consisting of a first part pierced with a first hole, a second part pierced with a second hole, the first part and the second part being connected by an intermediate part connected to the first part by a connecting zone intended to be surrounded by a loop of rope, the two strands of which pass through the first hole; the second hole is used for hanging the user.
  • the object of the present invention is in particular to avoid the drawbacks of known descenders, by proposing a new descender structure which, while retaining the safety qualities of known descenders at 8, significantly increases the braking forces along the rope, provides sufficient braking to completely stop the sliding of the descender along the rope when the user releases the device and the rope completely, and allows the progressive adjustment of the braking forces by action of the user on the descender itself.
  • these functions are provided by a one-piece descender comprising no mechanical annex movable relative to the body of the descender.
  • the descender according to the present invention comprises a one-piece body comprising the main parts of a descender at 8, the descender being used in the same manner as a descender at 8; according to the invention: the intermediate part of the descender is curved so that its attachment zone is angularly offset around the first hole with respect to the line joining the holes, - Gripping means are provided to allow adjustment at will of the angular orientation of the device around the axis of the first hole, this orientation producing a progressive adjustment of the braking forces of the descender along the rope.
  • the attachment zone In the release position, the attachment zone is angularly offset around the first hole relative to the line joining the two holes, or main direction of the rope; this arrangement very significantly increases the friction of the descender on the rope, and the braking force which it achieves, compared to the braking obtained by a descender at 8.
  • the gripping means allowing the adjustment of the angular orientation of the descender relative to the main direction of the rope comprise a hole auxiliary, formed in the intermediate part of the descender, in the vicinity of the attachment area.
  • the half-loop of rope passes around the area of attachment between the first hole and the auxiliary hole; the auxiliary hole can be used to pass a cord or a carabiner, which the user can then pull at will to produce the adjustment of orientation of the descender around the first hole.
  • the gripping means can be a lever secured to the descender body.
  • a lever can be arranged in any position around the body.
  • the first hole comprises, in the vicinity of the attachment zone, a rectilinear wall.
  • a conventional descender in 8 comprises a first part 1 pierced with a first hole 2, a second part 3 pierced with a second hole 4.
  • the first part 1 and the second part 3 are connected by a intermediate part 5, the assembly forming a one-piece body.
  • the intermediate part 5 is connected to the first part 1 by a connecting zone 6.
  • the descender at 8 is positioned on a rope 7: the upper strand 8 of rope once passes through the first hole 2, makes a half-loop 9 around the attachment area 6 , goes back into the first hole 2 and goes out to form the lower strand 10.
  • a carabiner 11, or other attachment device is passed into the second hole 4 for hooking the user.
  • the user In normal use, the user must hold with one hand at least the lower strand 10, and possibly the upper strand 8. If the user releases the two strands, the braking of the rope when the descender at 8 is passing is insufficient.
  • the first hole 2 and the second hole 4 define the main axis BB of the descender, the axis being substantially parallel to the general direction of the rope 7, or direction of the upper strand 8 and of the lower strand 10. This direction is generally vertical, during use.
  • the descender comprises, like a descender at 8, a first part 1 pierced with a first hole 2, a second part 3 pierced with a second hole 4, an intermediate part 5 connecting the first part 1 and the second part 3, the intermediate part 5 connected to the first part 1 by a connecting zone 6, the assembly forming a single piece.
  • the first hole 2 and the second hole 4 define the main axis of the descender.
  • the intermediate part 5 of the descender according to the invention is curved so that its attachment zone 6 is angularly offset around the first hole relative to the line BB joining the two holes 2 and 4.
  • Gripping means are provided to allow the angular orientation of the descender to be adjusted around the axis of the first hole 2.
  • these gripping means are consisting of a simple auxiliary hole 11, formed in the intermediate part 5, in the vicinity of the connecting zone 6. It can be considered that the connecting zone 6 extends between the auxiliary hole 11 of the intermediate part 5 and the first hole 2 of the first part 1 of the descender body.
  • the curvature of the intermediate part 5 develops in the plane of the descender, that is to say that the descender is substantially planar, so that its use can be adapted as well to right-handed users as to left-handed users, without showing any difference in behavior.
  • Figure 3 There is shown in Figure 3 a sectional view along the plane A-A of the descender of Figure 1, showing such the descender is substantially planar.
  • the lever can, for example, be arranged as an extension of the attachment zone 6, on the left-hand side of FIG. 2, or on the opposite in the first part 1; a lever on the left is actuated by pulling downwards, a lever on the right would be actuated by pushing upwards, producing in both cases a rotation of the descender anticlockwise.
  • the hole 2 comprises, in the vicinity of the attachment area 6, a substantially planar wall 12.
  • This wall forms a planar area capable of receiving two strands of rope side by side, balancing friction as will be explained later.
  • FIGS. 4 and 5 show the normal use of the descender according to the present invention.
  • the user is, as for a descender at 8, connected to the descender by a hooking device passing through the second hole 4.
  • the figures show a use with a double rope. Use can also be effective on a single rope.
  • the upper arm 8 of the rope passes through the first hole 2, forms a half-loop 9 around the attachment zone 6, passes back through the hole 2 and escapes to form the lower strand 10.
  • the strands of rope cross in the first hole 2, moreover the crossing takes place in a determined direction, defined in FIG. 4, so that the upper strand 8, which at its exit of semi-loop around the area of attachment 6 is closest to the second hole 4, must cross the lower strand 10 over this lower strand in the first hole 2.
  • auxiliary gripping device for example a strap 13 or a carabiner, is passed through the auxiliary hole 11.
  • the descender In the absence of traction on the auxiliary strap 13, the descender is positioned as shown in FIG. 4, under the effect of the traction exerted by the weight of the user attached to the second hole 4: the main axis BB of the descender is then in a substantially vertical position, aligned with the strands 8 and 10 of rope. Crossing the ropes then produces effective braking, preventing the descender from sliding along the rope.
  • This braking is effective enough to prevent any sliding when the angle D formed by the main axis B-B of the descender and by the axis A-A of the attachment zone 6 is at least equal to 70 °.
  • a smaller angle produces less braking, which may however be enough to avoid accidents.
  • a greater angle produces very effective braking, which it is necessary to counter by a more important maneuver of the descender.
  • FIGS. 6 and 7 Two other examples of the use of the descender according to the present invention are shown diagrammatically in FIGS. 6 and 7.
  • the descender is used to establish a relay making it possible to brake a descending rope and to block it automatically; its release requires traction on the strap passing through the auxiliary hole, as shown by the arrow in the figure.
  • FIG. 7 the same descender according to the present invention is used as a conventional descender in 8.
  • the user hooking carabiner is passed not through the second hole 4 but through the auxiliary hole 11.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Emergency Lowering Means (AREA)
EP89420189A 1988-06-03 1989-06-01 Selbstblockierendes Seileisen Withdrawn EP0345175A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8807874A FR2632196B1 (fr) 1988-06-03 1988-06-03 Descendeur autobloquant
FR8807874 1988-06-03

Publications (1)

Publication Number Publication Date
EP0345175A1 true EP0345175A1 (de) 1989-12-06

Family

ID=9367227

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89420189A Withdrawn EP0345175A1 (de) 1988-06-03 1989-06-01 Selbstblockierendes Seileisen

Country Status (2)

Country Link
EP (1) EP0345175A1 (de)
FR (1) FR2632196B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2663550A1 (fr) * 1990-06-22 1991-12-27 Simond Ludger Sa Descendeur autobloquant.
WO1992000684A1 (en) * 1990-07-13 1992-01-23 Serlachius Jarl Fredrik Fastening device
DE19815193A1 (de) * 1998-04-04 1999-10-07 Brand & Schluttig Gmbh Abseilgerät hoher Sicherheit
ES2249196A1 (es) * 2005-11-18 2006-03-16 Faders, S.A. "dispositivo para escalada".

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102641565A (zh) * 2012-05-02 2012-08-22 何少敦 一种悬吊器
DE102015013564A1 (de) * 2015-10-20 2017-04-20 Artüras Vengalis Klettern Sicherungsgerät

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH494041A (de) * 1968-07-19 1970-07-31 Richard Dr Med Hopf Abseilgerät
GB1560790A (en) * 1977-03-04 1980-02-13 Secr Defence Braking devices
EP0080522A1 (de) * 1979-07-26 1983-06-08 Jacques-Martin Lopez Sicherungsvorrichtung
FR2564736A1 (fr) * 1984-05-25 1985-11-29 Petzl Fernand Descendeur sur corde simple ou double pour l'alpinisme ou la speleologie
AT383959B (de) * 1985-04-24 1987-09-10 Heinz Prohaska Selbstblockierendes abseilgeraet

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH494041A (de) * 1968-07-19 1970-07-31 Richard Dr Med Hopf Abseilgerät
GB1560790A (en) * 1977-03-04 1980-02-13 Secr Defence Braking devices
EP0080522A1 (de) * 1979-07-26 1983-06-08 Jacques-Martin Lopez Sicherungsvorrichtung
FR2564736A1 (fr) * 1984-05-25 1985-11-29 Petzl Fernand Descendeur sur corde simple ou double pour l'alpinisme ou la speleologie
AT383959B (de) * 1985-04-24 1987-09-10 Heinz Prohaska Selbstblockierendes abseilgeraet

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2663550A1 (fr) * 1990-06-22 1991-12-27 Simond Ludger Sa Descendeur autobloquant.
WO1992000684A1 (en) * 1990-07-13 1992-01-23 Serlachius Jarl Fredrik Fastening device
US5339497A (en) * 1990-07-13 1994-08-23 Serlachius Jarl F Fastening device
DE19815193A1 (de) * 1998-04-04 1999-10-07 Brand & Schluttig Gmbh Abseilgerät hoher Sicherheit
ES2249196A1 (es) * 2005-11-18 2006-03-16 Faders, S.A. "dispositivo para escalada".

Also Published As

Publication number Publication date
FR2632196A1 (fr) 1989-12-08
FR2632196B1 (fr) 1990-08-24

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