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
• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06C—LADDERS
  • E06C7/00—Component parts, supporting parts, or accessories
  • E06C7/18—Devices for preventing persons from falling
  • E06C7/186—Rail or rope for guiding a safety attachment, e.g. a fall arrest system
  • E06C7/187—Guiding rail

Definitions

• the invention relates to a catching device for a climbing protection system to prevent a user from falling off a ladder, a platform or the like.
• the safety device runs in a guide rail and the user to be secured is connected to the safety device by a safety harness.
• the fall arrester has a slide which runs in the guide rail, as well as a pawl which is rotatably mounted in the slide and, in the event of a fall, bumps against catches in the guide rail, and a fastening device for securing the safety harness to the pawl, the Fastening device has a damping element which mitigates the impact impact in the event of a fall.
• Such a catching device is known from EP-A-0 168 021, DE-A-27 36 037 and DE-A-19 61 757. It is also known to provide a damping element in the fastening device in that a U-bracket hangs on a fastening ring of the pawl, on each of the two legs of which a damping element is seated. The free ends of the stirrup legs are closed by a plate. A plate is also provided above the damping elements and is displaceable on the bracket legs. A bolt is fastened to this plate, which extends axially parallel to the stirrup legs and does not extend downward between them and at its free end there is a fastening eyelet on which means of a snap hook the harness is attachable.
• this fastening device In the event of a fall, the impact shock is guided over the bolt onto the top of the damping elements and the two damping elements are compressed, thereby reducing the impact impact.
• the overall length of this fastening device is relatively large, however, and because the U-bracket and the snap hook each hang in a fastening eyelet, the fastening device has a great deal of play overall.
• the invention has for its object to provide a Fangeinrich ⁇ device with damping element, in which the fastening device takes up as little space as possible and no more eyelet connections are provided than necessary.
• this object is achieved in that the damping element is seated on a peg-shaped extension of the pawl, that a crosspiece is guided above the damping element on the peg-shaped extension and rests on the damping element, the harness being attachable to the crosspiece, which Cross piece is part of a shackle ring and the two ends of the cross piece are the steering knuckles on which the eyes of the shackle bracket sit.
• the damping element is preferably a tube with a length of approx. 23 mm, an inner diameter of 12 mm and an outer diameter of approx. 24 mm made of a Fibroflex ® round rod with a hardness of 90 Shore A (yellow), as supplied by the company Fibro GmbH, 74 855 Hassmershei, FRG, under the order no. 253.6.025 is available.
• An embodiment of the invention is shown below with reference to the drawing. Show it:
• Fig. 1 the capture device in side view
• Fig. 2 the catching device in a view from behind.
• the guide rail has the C-profile known from DE-A-0 168 021 with guide lips which serve as guide flanges.
• the carriage 1 has guide grooves 2 on both sides, which receive the guide lips of the guide rail.
• Guide rollers 3 protrude into the guide grooves 2 and roll on the outside and inside of the guide lips.
• the carriage 1 has a slot-shaped opening 5, in which a pawl 6 is rotatably mounted on a pin 7.
• the nose 8 of the pawl 6 protrudes forward from the carriage 1 and into the interior of the C-profile of the guide rail so that the nose 8 abuts the catches.
• the pawl 6 is supported at its upper end by means of the pin 7 and the back 9 of the nose 8 is chamfered downwards from the pin bearing.
• the pawl 6 is under the action of a compression spring 10, which presses above the journal bearing 7 against the pawl 6, so that the nose 8 protrudes as far as possible from the slide 1. If the carriage 1 is pulled up by the user, for example when climbing a ladder, the back 9 of the nose 8 runs from below against the catch pegs and is pushed back due to its bevel so that the catch pegs are run over. Since the cone-shaped projection 11 points downwards and lies clearly below the journal bearing 7, the nose 8 dips into the carriage 1 when over the safety belt and the shackle ring 15 an upward pull is exerted on the peg-shaped extension 11.
• the pawl 6 also protrudes from the slot-shaped opening 5 to the rear, i.e. towards the user and there is provided with a cone-shaped extension 11.
• a vortex or crosspiece 14 which has an eyelet in the middle for receiving the neck 11.
• a washer 19 is inserted between it and the crosspiece 14.
• a stop disk 20 is fixedly arranged over the crosspiece.
• the two lateral ends of the crosspiece 14 are designed as steering knuckles of a shackle ring 15, the two eyelets 16 being seated on the steering knuckles at the ends of the shackle bracket 17.
• the safety harness or rescue harness of the user is attached to the shackle bracket 17 by means of a karabiner 18.

Landscapes

• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Business, Economics & Management (AREA)
• Emergency Management (AREA)
• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Emergency Lowering Means (AREA)
• Earth Drilling (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=8003362

Family Applications (1)

Country Status (4)

Cited By (11)

Families Citing this family (4)

Citations (3)

Family Cites Families (6)

• 1995
  • 1995-02-03 DE DE29501716U patent/DE29501716U1/de not_active Expired - Lifetime
• 1996
  • 1996-02-02 DE DE59601047T patent/DE59601047D1/de not_active Expired - Fee Related
  • 1996-02-02 EP EP96903967A patent/EP0807200B1/de not_active Expired - Lifetime
  • 1996-02-02 JP JP8523267A patent/JPH10512787A/ja active Pending
  • 1996-02-02 WO PCT/EP1996/000440 patent/WO1996023951A1/de active IP Right Grant

Patent Citations (3)

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