EP0773181A1 - Antifall-Sicherheitseinrichtung für einen beweglichen Körper - Google Patents

Antifall-Sicherheitseinrichtung für einen beweglichen Körper Download PDF

Info

Publication number: EP0773181A1
Authority: EP; European Patent Office
Prior art keywords: housing; clamping member; roller; movable body; rotating clamping
Prior art date: 1995-11-07
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

EP96402350A

Other languages

English (en)

French (fr)

Other versions

EP0773181B1 (de

Inventor

Joselyne Daroux-Aguanno

Jean-Marie Penin

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.)

Inec

Original Assignee

Inec

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.)

1995-11-07

Filing date

1996-11-06

Publication date

1997-05-14

1996-11-06 Application filed by Inec filed Critical Inec

1997-05-14 Publication of EP0773181A1 publication Critical patent/EP0773181A1/de

2000-08-02 Application granted granted Critical

2000-08-02 Publication of EP0773181B1 publication Critical patent/EP0773181B1/de

2016-11-06 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

230000000694 effects Effects 0.000 claims description 4
238000006073 displacement reaction Methods 0.000 claims 1
230000000903 blocking effect Effects 0.000 description 3
230000000750 progressive effect Effects 0.000 description 3
240000008042 Zea mays Species 0.000 description 1
238000007792 addition Methods 0.000 description 1
238000010276 construction Methods 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
238000012986 modification Methods 0.000 description 1
230000004048 modification Effects 0.000 description 1
239000007787 solid Substances 0.000 description 1
239000000725 suspension Substances 0.000 description 1

Images

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
- B66B5/22—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges

Definitions

the present invention relates to a safety device intended to automatically block the movement of accidental fall of a mobile body.
the invention applies in particular to stopping the fall of a movable, tilting or vertically moving door, without this being in any way limiting since the invention can find applications in many other fields.
a fall arrest system which comprises a tension spring kept in balance by the tension of the chains of suspension.
the accidental breaking of a chain controls the pivoting, under the action of a torsion spring, of a cleat which engages in one of the holes presented by the guide slide of the chains.
Such a system has the disadvantage of being imposing, constraining in dimensions, and of ensuring blocking only at the rate of the pitch of the holes made in the slide.
a progressive safety device used to stop a cabin or an elevator counterweight.
This device comprises a casing fixed to the cabin or to the counterweight and receiving a fixed guide rail.
the housing has on one side of the rail a brake shoe and, on the other side, a spring assembly defining a narrowed area with the rail.
a roller is placed at inside the narrowed area and is connected to a regulator linked to the cabin or counterweight.
the regulator pulls the roller up the narrowed area by pushing it between the spring and the rail, which applies the rail against the brake shoe. Due to the elasticity of the springs, immobilization due to the action of the device is only progressive.
This known device ensuring only progressive immobilization, cannot be used for applications where security requires immediate immobilization.
this device requires a regulator which complicates the production and significantly increases its cost.
the object of the present invention is to remedy the drawbacks presented by the known devices mentioned above and to this end it proposes a fall protection safety device which, while being of simple design and construction, of low cost and a reduced size, is very reliable in ensuring an immediate and effective blocking of the accidental fall of the mobile body.
the anti-fall safety device comprises two elements with sliding movement relative to each other, one of these elements being fixed and the other being integral with the movable body, these elements comprising a first element and a second element in the form of a housing having an internal housing disposed opposite said first element and containing at least one rotating clamping member, said housing having on its height a portion of greater width in which the rotating clamping member is held by an elastic retaining means and a reduced width portion in which the rotating clamping member clamping engages by inertia, against the action of said retaining means, in the event of a sudden fall of said body, the rotating clamping member pressing said first element while ensuring the immobilization of said body.
the first element can be fixed and the second element is integral with the movable body. Conversely, the first element can move by being linked to the movable body, the second element being fixed.
the first element can be housed in a vertical slot of the second element and slide in this slot, the tightening by triggering of the rotating member pressing the first element against the wall of the slot.
the first element can be fixed, for example being constituted by a strap. It can also be rigid, being constituted for example by a rail.
the first element can also be a tube.
the internal housing of the second element can comprise radially several rotary clamping members which are regularly distributed over the periphery of the tube to simultaneously ensure effective clamping.
the rotary clamping member consists of a roller which, at rest, is held in the bottom of the enlarged part of the housing and in contact at its periphery with the first element under the action of a spring tare.
the inertia of the tightening roller causes, against the action of the calibrated spring, the engagement of the roller in the narrowed part of the housing and the immediate stopping of the relative sliding movement of the first and second elements.
a strap anchored at its upper end to a fixed part 2 and along which a box 3 can slide vertically secured to a movable element such as a door (not shown in drawing).
the strap 1 slides in an internal vertical slot 4 of the housing 3, so that one of the faces of the strap 1 faces a solid vertical part of the housing 3, while a part of the opposite face of the strap 1 is located opposite a hollowed-out internal housing 5 of the housing 3.
the housing 5 is limited by horizontal lower 6 and upper 7 walls and, opposite to strap 1, by a vertical lower wall 8 continuing by an inclined upper wall 9 approaching the strap 1.
a roller 10 is placed inside the housing 5 so that, in the rest position (as shown in FIG. 1), this roller 10 rests on the lower wall 6.
a calibrated spring 11 presses on the roller 10 to hold against the bottom wall 6 and against the strap 1.
the safety device After repairing the door, the safety device is easily returned to the rest position by a simple reversal of the direction of movement of the mobile element which is immediately capable of once again fulfilling its safety function.
the device is therefore reusable many times.
the device has been described by way of example as comprising a housing with a wedging element sliding along a fixed strap, but that without departing from the invention, a fixed housing could be provided inside from which a movable strap slides.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Emergency Lowering Means (AREA)
Control And Safety Of Cranes (AREA)
Forklifts And Lifting Vehicles (AREA)
Elevator Door Apparatuses (AREA)
Details Of Aerials (AREA)
Telephone Function (AREA)

EP96402350A 1995-11-07 1996-11-06 Antifall-Sicherheitseinrichtung für einen beweglichen Körper Expired - Lifetime EP0773181B1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FR9513126A FR2740854B1 (fr)	1995-11-07	1995-11-07	Dispositif de securite antichute pour un corps mobile
FR9513126		1995-11-07

Publications (2)

Publication Number	Publication Date
EP0773181A1 true EP0773181A1 (de)	1997-05-14
EP0773181B1 EP0773181B1 (de)	2000-08-02

Family

ID=9484289

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP96402350A Expired - Lifetime EP0773181B1 (de)	1995-11-07	1996-11-06	Antifall-Sicherheitseinrichtung für einen beweglichen Körper

Country Status (4)

Country	Link
EP (1)	EP0773181B1 (de)
AT (1)	ATE195111T1 (de)
DE (1)	DE69609583T2 (de)
FR (1)	FR2740854B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1500624A1 (de) *	2003-07-21	2005-01-26	The Peelle Company Ltd	Aufzuglandungstür mit Sicherheitsvorrichtung gegen Kettenbruch

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2897920A (en) *	1958-01-28	1959-08-04	Dresser Ind	Emergency brake for elevator cars
FR1599823A (de) *	1968-11-08	1970-07-20
US4333549A (en) *	1980-06-25	1982-06-08	Otis Elevator Company	Car blocking apparatus
FR2543122A1 (fr)	1983-03-21	1984-09-28	Otis Elevator Co	Dispositif de securite progressive
FR2702464A1 (fr) *	1993-03-10	1994-09-16	Otis Elevator Co	Parachute de cabine d'ascenseur à réglage instantané et à autocentrage.

1995
- 1995-11-07 FR FR9513126A patent/FR2740854B1/fr not_active Expired - Fee Related
1996
- 1996-11-06 EP EP96402350A patent/EP0773181B1/de not_active Expired - Lifetime
- 1996-11-06 DE DE69609583T patent/DE69609583T2/de not_active Expired - Fee Related
- 1996-11-06 AT AT96402350T patent/ATE195111T1/de not_active IP Right Cessation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2897920A (en) *	1958-01-28	1959-08-04	Dresser Ind	Emergency brake for elevator cars
FR1599823A (de) *	1968-11-08	1970-07-20
US4333549A (en) *	1980-06-25	1982-06-08	Otis Elevator Company	Car blocking apparatus
FR2543122A1 (fr)	1983-03-21	1984-09-28	Otis Elevator Co	Dispositif de securite progressive
FR2702464A1 (fr) *	1993-03-10	1994-09-16	Otis Elevator Co	Parachute de cabine d'ascenseur à réglage instantané et à autocentrage.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1500624A1 (de) *	2003-07-21	2005-01-26	The Peelle Company Ltd	Aufzuglandungstür mit Sicherheitsvorrichtung gegen Kettenbruch
US7097003B2 (en)	2003-07-21	2006-08-29	The Peelle Company Ltd.	Elevator landing door broken chain safety device

Also Published As

Publication number	Publication date
ATE195111T1 (de)	2000-08-15
DE69609583T2 (de)	2001-03-29
DE69609583D1 (de)	2000-09-07
FR2740854B1 (fr)	1998-01-09
FR2740854A1 (fr)	1997-05-09
EP0773181B1 (de)	2000-08-02

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