WO1994004786A1 - On the safety bar lockable carriage - Google Patents
On the safety bar lockable carriage Download PDFInfo
- Publication number
- WO1994004786A1 WO1994004786A1 PCT/FI1993/000327 FI9300327W WO9404786A1 WO 1994004786 A1 WO1994004786 A1 WO 1994004786A1 FI 9300327 W FI9300327 W FI 9300327W WO 9404786 A1 WO9404786 A1 WO 9404786A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- carriage
- rail
- profile
- brackets
- rims
- Prior art date
Links
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 safety device preventing a person from falling when climbing on ladder.
- the safety device stops in a rail fixed to the ladder and prevents from falling when the person is suspended in the safety device.
- a rail is used as safety device to which a carriage is fixed that moves in the rail and reacts upon dropping by stopping in the rail and thus preventing the safety device user from falling.
- Safety carriages are known, among others, from the Finnish publication 61133 and application 842035. In these examples, the safety carriage hits the rail or an obstacled formed in the profile.
- T- profiles and square profiles and corresponding C-profiles are used, the profile of which is open at a point allowing the safety carriage to be guided off the rail.
- the profile is either a C- or a square profile, in each profile there is a gap for the carriage. At the gap edges the profile has rims bent to the profile in ⁇ side. In stress situations the C- and square profiles have the tendency to spread out thus enlargening the gap in the profile front edge.
- Fig. 1 is a carriage in a rail profile
- Fig. 2 is a rail profile
- Fig. 3 is a stopped carriage, the rail a reduced cross-section of a situation as per figure 1 Fig. 4 is a carriage viewed diagonally
- Fig. 1 shows a carriage 4 in rail profile 1.
- the carriage moves up and down in the rail while belt loop 5 is being pulled off the rail.
- the user suspends him/herself in the belt, one end of which is in belt loop 5.
- carriage 4 is pulled from loop 5 on moving up or down in the ladder direction, the carriage does not stop in the collision brackets 2 arranged on the profile back wall.
- Fig. 2 shows a rail profile 1, on the inside back wall of which curved brackets 2 are hammered by a tool at suitable intervals. In this profile type holes 13 are made between the brackets in the back wall for fastening the rail to the ladder.
- the rail profile design tapers towards the front edge, where the profile is open. At the edges of the produced gap the profile has rims 3 bent to the profile inside. The inner walls of these bent rims 3 are marked by ref.no 12.
- Figure 3 shows a cross-section of a situation as per figure 1, where carriage 4 is stopped in rail 1.
- Carriage wheel 6, which can move in the carriage frame, is stretched toward belt loop 5 by spring 14 around pin 7 in carriage 4, whereupon carriage wheel 6 has hit the front edge of the rail and, accordinly, carriage 4 has then moved against the rail back wall by the impact of spring 14. Since the carriage motion has been down, its lower collision edge 10 has then hit bracket 2 and stopped the carriage. Carriage 4 remains stopped as long as the frame is being pulled dow. The carriage is released on pulling belt loop vertically off the rail with respect to the rail.
- Figure 4 shows a carriage with an elongated hole 8 for the wheel pair axle and a pin 7 for fixing spring 14. At both carriage ends there are collision edges 10 which hit the brackets 2 upon collision. Further, at both ends of the carriage there is a pair of brackets 9 adjusted to the rail profile 1 so that suit- table clearance is left between their inner surfaces 11 and the inner surfaces of bent rims 3. The rail 1 wall thickness and stiffness is so adjusted that in situations of stress of the rail, due to falling, the rail profile gap can spread out, whereat bent rims 3 take support from the bracket pairs 9 of carriage 4 and prevent further extension of the profile gap. Since the carriage construction takes a portion of the strains on the rail, the rail can be made of quite a thin plate or its walls to a rather thin profile. The front edge as per fig. 2 has a strong tendency to spread out at the front edge gap, but also other square, circular or combination profiles tend to do the same.
- bracket pairs 9 can be replaced also by wheel pairs if one wants to secure perfect rolling of carriage in the profile front edge. Then the inner flanks of the wheel pairs are adjusted to function with the bent rims 3 and front edges 6 in the same way as parts 9 and their inner surfaces 11.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU47118/93A AU4711893A (en) | 1992-08-19 | 1993-08-19 | On the safety bar lockable carriage |
DE69317913T DE69317913T2 (en) | 1992-08-19 | 1993-08-19 | SAFETY DEVICE AND SLIDER THEREFOR |
EP93917821A EP0727006B1 (en) | 1992-08-19 | 1993-08-19 | A safety device and carriage therefor |
NO950615A NO303182B1 (en) | 1992-08-19 | 1995-02-17 | Carriage moving in a safety rail |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI923709 | 1992-08-19 | ||
FI923709A FI116512B (en) | 1992-08-19 | 1992-08-19 | Lockable carriage |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994004786A1 true WO1994004786A1 (en) | 1994-03-03 |
Family
ID=8535731
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FI1993/000327 WO1994004786A1 (en) | 1992-08-19 | 1993-08-19 | On the safety bar lockable carriage |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0727006B1 (en) |
AU (1) | AU4711893A (en) |
DE (1) | DE69317913T2 (en) |
FI (1) | FI116512B (en) |
WO (1) | WO1994004786A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0812606A2 (en) * | 1996-06-12 | 1997-12-17 | Söll Gmbh | Climbing apparatus |
GB2328917A (en) * | 1997-09-09 | 1999-03-10 | Duncan Hugh Swinson | Marine crew safety system for wheelchair-dependent or able-bodied people |
US5941340A (en) * | 1997-03-31 | 1999-08-24 | Dalloz Safety, Inc. | Device for use in climbing or in transporting a mass |
WO1999022816A3 (en) * | 1997-11-03 | 1999-08-26 | Soell Gmbh | Falling safeguard device |
GB2357543A (en) * | 1999-12-24 | 2001-06-27 | Total Fabrications Ltd | Structural members with provision for attachment to a safety device |
US6408587B2 (en) | 1999-12-24 | 2002-06-25 | Total Fabrications Limited | Structural members and associated parts |
US6471000B2 (en) * | 2001-03-16 | 2002-10-29 | Albert A. Wolfe | Safety harness and ladder assembly |
US11346153B2 (en) * | 2018-11-02 | 2022-05-31 | Chen-Wei Lin | Ladder |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018127562A1 (en) * | 2018-11-05 | 2020-05-07 | Chen-Wei Lin | Ladder structure |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3933220A (en) * | 1974-05-17 | 1976-01-20 | Swager William E | Climbing device |
DE3426551A1 (en) * | 1983-11-23 | 1985-05-30 | Virtaradat Oy, Helsinki | Damping device |
EP0418405A1 (en) * | 1989-09-16 | 1991-03-27 | Fahrleitungsbau GmbH | Clamp for a safety climbing device |
-
1992
- 1992-08-19 FI FI923709A patent/FI116512B/en active IP Right Grant
-
1993
- 1993-08-19 AU AU47118/93A patent/AU4711893A/en not_active Abandoned
- 1993-08-19 EP EP93917821A patent/EP0727006B1/en not_active Expired - Lifetime
- 1993-08-19 DE DE69317913T patent/DE69317913T2/en not_active Expired - Fee Related
- 1993-08-19 WO PCT/FI1993/000327 patent/WO1994004786A1/en active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3933220A (en) * | 1974-05-17 | 1976-01-20 | Swager William E | Climbing device |
DE3426551A1 (en) * | 1983-11-23 | 1985-05-30 | Virtaradat Oy, Helsinki | Damping device |
EP0418405A1 (en) * | 1989-09-16 | 1991-03-27 | Fahrleitungsbau GmbH | Clamp for a safety climbing device |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0812606A2 (en) * | 1996-06-12 | 1997-12-17 | Söll Gmbh | Climbing apparatus |
EP0812606A3 (en) * | 1996-06-12 | 1999-03-10 | Söll Gmbh | Climbing apparatus |
US5941340A (en) * | 1997-03-31 | 1999-08-24 | Dalloz Safety, Inc. | Device for use in climbing or in transporting a mass |
GB2328917A (en) * | 1997-09-09 | 1999-03-10 | Duncan Hugh Swinson | Marine crew safety system for wheelchair-dependent or able-bodied people |
GB2328917B (en) * | 1997-09-09 | 2002-03-06 | Duncan Hugh Swinson | Safety system for example marine crew safety system to be used by wheelchair dependant & able bodied people |
WO1999022816A3 (en) * | 1997-11-03 | 1999-08-26 | Soell Gmbh | Falling safeguard device |
US6571912B2 (en) | 1997-11-03 | 2003-06-03 | Christian Dalloz Holding Deutschland Gmbh & Co. Kg | Falling safeguard device |
GB2357543A (en) * | 1999-12-24 | 2001-06-27 | Total Fabrications Ltd | Structural members with provision for attachment to a safety device |
US6408587B2 (en) | 1999-12-24 | 2002-06-25 | Total Fabrications Limited | Structural members and associated parts |
GB2357543B (en) * | 1999-12-24 | 2003-12-31 | Total Fabrications Ltd | Structural members |
US6471000B2 (en) * | 2001-03-16 | 2002-10-29 | Albert A. Wolfe | Safety harness and ladder assembly |
US11346153B2 (en) * | 2018-11-02 | 2022-05-31 | Chen-Wei Lin | Ladder |
Also Published As
Publication number | Publication date |
---|---|
FI116512B (en) | 2005-12-15 |
AU4711893A (en) | 1994-03-15 |
EP0727006B1 (en) | 1998-04-08 |
FI923709A (en) | 1994-02-20 |
FI923709A0 (en) | 1992-08-19 |
DE69317913D1 (en) | 1998-05-14 |
EP0727006A1 (en) | 1996-08-21 |
DE69317913T2 (en) | 1998-12-24 |
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