EP0848137A1 - Electric gearmotor for metal rolling gates - Google Patents

Electric gearmotor for metal rolling gates Download PDF

Info

Publication number
EP0848137A1
EP0848137A1 EP97830648A EP97830648A EP0848137A1 EP 0848137 A1 EP0848137 A1 EP 0848137A1 EP 97830648 A EP97830648 A EP 97830648A EP 97830648 A EP97830648 A EP 97830648A EP 0848137 A1 EP0848137 A1 EP 0848137A1
Authority
EP
European Patent Office
Prior art keywords
gearmotor
shaft
irreversibility
driving shaft
keyed
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
EP97830648A
Other languages
German (de)
French (fr)
Other versions
EP0848137B1 (en
Inventor
Dante Postacchini
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.)
Gaposa SRL
Original Assignee
Gaposa SRL
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 Gaposa SRL filed Critical Gaposa SRL
Publication of EP0848137A1 publication Critical patent/EP0848137A1/en
Application granted granted Critical
Publication of EP0848137B1 publication Critical patent/EP0848137B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68—Operating devices or mechanisms, e.g. with electric drive
    • E06B9/74—Operating devices or mechanisms, e.g. with electric drive adapted for selective electrical or manual operation
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
    • E06B9/86—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic against unauthorised opening

Definitions

  • This design patent application concerns an electric gearmotor for metal rolling gates counter-weighed by springs, equipped with a mechanical irreversibility device fitted between the gearmotor and the motor.
  • said irreversibility mechanism is fitted at one end of the driving shaft which performs a short axial stroke thanks to which it is possible to move away and uncouple the mechanism from the gearmotor.
  • the gearmotor in question is mounted above all on rolling gates counter-weighed by springs which, as such, may also be lifted manually in that the weight of the rolling gate is balanced by a series of springs which wind during the downward stroke of the gate and unwind during the upward stroke.
  • the irreversibility of the gearmotor prevents the rolling gate from being lifted manually by burglars when lowered; in this sense the irreversibility of the gearmotor offers further security against burglary attempts with respect to the locks or keys generally used on compensated rolling gates.
  • the start-up of the motor entails the automatic deactivation, even if not instantaneous, of the electric brake, which is operated by a spring and automatically and instantaneously stops the driving shaft as soon as the electric supply is cut off.
  • gearmotors are always fitted with a device for the manual release of the electric brake, for emergency situations, when it is necessary to lift or lower the rolling gate even in the case of temporary power failure of the electric plant or the mains.
  • Said manual release device is generally operated by pulling a metal cable attached to the electric brake.
  • the purpose of this invention is to design a new gearmotor model for metal rolling gates, counter-weighed by springs, whose movement irreversibility is provided by a completely mechanical device in which the emergency cable that excludes said device is attached to one end of the driving shaft.
  • said mechanical irreversibility device offers two main advantages: the first is an economical saving in that the mechanical device is less expensive than the above electric brake; the second is an operating advantage in that said device can instantaneously stop the driving shaft in the case of a power failure, contrary to the electric brake whose action is not instantaneous.
  • the gearmotor according to the invention uses a mechanical irreversibility device which is commonly known which permits the drive of the rotary motion only if said motion is introduced on one of the two elements of the drive which is on the other hand prevented in the reverse direction.
  • Said irreversibility device is mounted at the end of the driving shaft immediately in front of the gearmotor which is connected to the irreversibility device by a mobile front connecting coupling.
  • the driving shaft is supported so as to perform a backward axial stroke in order to release the irreversibility device from the gearmotor, in case of emergency in order to allow the manual movement of the rolling gate.
  • the backward stroke of the driving shaft can be activated by a special emergency cable attached to the driving shaft on the opposite end with respect to the end on which the irreversibility device is mounted.
  • the gearmotor according to the invention consists of a conventional electric motor (1) and a gearmotor (2) between which is fitted an irreversibility device (3) consisting of two elements (3a and 3b) coupled so as to allow transmission of the motion only in one direction.
  • the other element (3b) of this device (3) is provided with teeth (3c) which permit a front connection type coupling between the device (3) and the gearmotor (2).
  • the shaft (1a) of the motor (1) ) is supported so as to perform a short axial stroke (d) which makes it possible to engage and disengage the device (3) and the gearmotor (2) which are coupled by means of a spring (4) fitted on the shaft (1a) and pressing against the element (3a) keyed on the shaft in order to push and keep the device (3) pressed against the gearmotor (2).
  • a fork bracket (5) sliding within a housing (6) and fixed to the motor (1) casing, is hooked at the end of the shaft (1a) opposite to the end on which the device (3) is keyed.
  • the emergency cable (7) is in turn attached to said bracket (5); it being provided that by pulling the cable (7) it is possible to slide back the shaft (1a) in order to disengage the device (3) from the gearmotor (2). Naturally said cable (7) should be pulled with enough force to overcome the resistance of the spring (4) which presses against the above element (3a) - belonging to the irreversibility device (3) - keyed on shaft (1a).

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Gear Transmission (AREA)
  • Transmission Devices (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

This invention concerns an electric gearmotor for metal rolling gates equipped with a mechanical irreversibility device fitted between a motor and a gear motor, it being provided that this device may be excluded in the case of emergencies by pulling a cable which pulls back the driving shaft on which said device is keyed.

Description

This design patent application concerns an electric gearmotor for metal rolling gates counter-weighed by springs, equipped with a mechanical irreversibility device fitted between the gearmotor and the motor.
More precisely said irreversibility mechanism is fitted at one end of the driving shaft which performs a short axial stroke thanks to which it is possible to move away and uncouple the mechanism from the gearmotor.
As mentioned above, the gearmotor in question is mounted above all on rolling gates counter-weighed by springs which, as such, may also be lifted manually in that the weight of the rolling gate is balanced by a series of springs which wind during the downward stroke of the gate and unwind during the upward stroke.
In this type of compensated rolling gates customers often request an irreversible gearmotor for two main reasons: first and foremost the irreversibility of the gearmotor ensures the stable and automatic stop of the rolling gate in any position and opening stage, even if the design or calibration of the compensation springs is not perfect.
Secondly, the irreversibility of the gearmotor prevents the rolling gate from being lifted manually by burglars when lowered; in this sense the irreversibility of the gearmotor offers further security against burglary attempts with respect to the locks or keys generally used on compensated rolling gates.
In current gearmotors for compensated rolling gates the irreversibility of the movement is ensured by an electric brake mounted on the driving shaft opposite to that of the gearmotor.
The start-up of the motor entails the automatic deactivation, even if not instantaneous, of the electric brake, which is operated by a spring and automatically and instantaneously stops the driving shaft as soon as the electric supply is cut off.
These gearmotors are always fitted with a device for the manual release of the electric brake, for emergency situations, when it is necessary to lift or lower the rolling gate even in the case of temporary power failure of the electric plant or the mains.
Said manual release device is generally operated by pulling a metal cable attached to the electric brake.
The purpose of this invention is to design a new gearmotor model for metal rolling gates, counter-weighed by springs, whose movement irreversibility is provided by a completely mechanical device in which the emergency cable that excludes said device is attached to one end of the driving shaft.
The use of said mechanical irreversibility device offers two main advantages: the first is an economical saving in that the mechanical device is less expensive than the above electric brake; the second is an operating advantage in that said device can instantaneously stop the driving shaft in the case of a power failure, contrary to the electric brake whose action is not instantaneous.
The gearmotor according to the invention uses a mechanical irreversibility device which is commonly known which permits the drive of the rotary motion only if said motion is introduced on one of the two elements of the drive which is on the other hand prevented in the reverse direction. Said irreversibility device is mounted at the end of the driving shaft immediately in front of the gearmotor which is connected to the irreversibility device by a mobile front connecting coupling.
The driving shaft is supported so as to perform a backward axial stroke in order to release the irreversibility device from the gearmotor, in case of emergency in order to allow the manual movement of the rolling gate.
The backward stroke of the driving shaft can be activated by a special emergency cable attached to the driving shaft on the opposite end with respect to the end on which the irreversibility device is mounted.
In order to move the driving shaft backwards, it is necessary to overcome the antagonist force of the spring designed to push the irreversibility device against the gearmotor so as to activate and stabilise the front connection between these two components thus indirectly ensuring irreversibility of the motion until such time as the emergency cable is pulled.
For major clarify the description of the invention continues with reference to the enclosed drawings which are intended for purposes of illustration and not in a limiting sense whereby:
  • fig. 1 is an exploded axonometric view of a section of the gearmotor according to the invention;
  • fig. 2 is a cross-section on an axial plane of the gearmotor according to the invention whereby the irreversibility device and the gearmotor are shown in engaged position;
  • fig. 3 is a cross-section on an axial plane of the gearmotor according to the invention whereby the irreversibility device and the gearmotor are shown in disengaged position.
With reference to the above drawings the gearmotor according to the invention consists of a conventional electric motor (1) and a gearmotor (2) between which is fitted an irreversibility device (3) consisting of two elements (3a and 3b) coupled so as to allow transmission of the motion only in one direction.
In the case in question, transmission is possible only if the motion is introduced on the element (3a) keyed at one end of the shaft (1a) of the motor (1).
The other element (3b) of this device (3) is provided with teeth (3c) which permit a front connection type coupling between the device (3) and the gearmotor (2). The shaft (1a) of the motor (1) ) is supported so as to perform a short axial stroke (d) which makes it possible to engage and disengage the device (3) and the gearmotor (2) which are coupled by means of a spring (4) fitted on the shaft (1a) and pressing against the element (3a) keyed on the shaft in order to push and keep the device (3) pressed against the gearmotor (2). A fork bracket (5), sliding within a housing (6) and fixed to the motor (1) casing, is hooked at the end of the shaft (1a) opposite to the end on which the device (3) is keyed.
The emergency cable (7) is in turn attached to said bracket (5); it being provided that by pulling the cable (7) it is possible to slide back the shaft (1a) in order to disengage the device (3) from the gearmotor (2). Naturally said cable (7) should be pulled with enough force to overcome the resistance of the spring (4) which presses against the above element (3a) - belonging to the irreversibility device (3) - keyed on shaft (1a).

Claims (1)

  1. An electric gearmotor for metal rolling gates of the type consisting of a conventional electric motor (1) and a gearmotor (2) characterised by:
    a conventional irreversibility device (3) consisting of two elements (3a and 3b) coupled so as to allow transmission of motion only from the driving shaft (1a) to the gearmotor (2) which is connected to the device (3) a mobile front connecting coupling;
    a driving shaft (1a) supported so as to perform a short axial stroke (d) which makes it possible to engage and disengage the device (3) and the gearmotor (2) which are normally engaged by means of a spring (4) fitted on the shaft (1a) and pressing against the element (3a) keyed on the shaft (1a);
    a fork bracket (5) hooked at the end of the shaft (1a) opposite to the end on which the device (3) is keyed and sliding in a housing (6) fixed to the casing of the motor (1);
    an emergency cable (7) in turn attached to said bracket (5).
EP19970830648 1996-12-13 1997-12-04 Electric gearmotor for metal rolling gates Expired - Lifetime EP0848137B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT96MC000134A IT1289339B1 (en) 1996-12-13 1996-12-13 ELECTRIC GEARMOTOR FOR METALLIC ROLLING SHUTTERS
ITMC960134 1996-12-13

Publications (2)

Publication Number Publication Date
EP0848137A1 true EP0848137A1 (en) 1998-06-17
EP0848137B1 EP0848137B1 (en) 2001-06-27

Family

ID=11357296

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19970830648 Expired - Lifetime EP0848137B1 (en) 1996-12-13 1997-12-04 Electric gearmotor for metal rolling gates

Country Status (3)

Country Link
EP (1) EP0848137B1 (en)
ES (1) ES2159103T3 (en)
IT (1) IT1289339B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1098063A2 (en) * 1999-11-05 2001-05-09 Valeo Auto-Electric Wischer und Motoren GmbH Tubular motor
DE102008052843A1 (en) * 2008-10-23 2010-05-12 Küster Holding GmbH Drive unit for window lifter for side window of motor vehicle, has self-locking element e.g. spring, cooperating with transmission element and stopping drive, where element is provided between transmission element and shaft
IT201800004927A1 (en) * 2018-04-27 2019-10-27 ELECTRIC GEAR MOTOR PERFECTED FOR ROLLING SHUTTERS.
IT202200008747A1 (en) * 2022-05-03 2022-08-03 Paolo Sacco ELECTRICAL DISCONNECTION DEVICE - DEVICE SUPPLIED WITH THE ELECTROMAGNETIC BRAKE, FOR CENTRAL GEARMOTORS FOR ROLLING SHUTTERS, ABLE TO INHIBIT THE OPERATION OF THE CENTRAL GEARMOTOR IF IT IS POSITIONED IN THE UNLOCKED STATE (REVERSIBLE CENTRAL GEARMOTOR)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ541409A (en) * 2005-07-21 2008-05-30 Chamberlain Australia Pty Ltd Door opener

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4519487A (en) * 1981-12-30 1985-05-28 Somfy Alternate manual or power auxiliary control device for controlling winding doors or the like
DE3608988A1 (en) * 1986-03-18 1987-09-24 Lothar Huber Device for the manual actuation of a winding shaft, which can be driven by an electric motor, e.g. of a roller blind
US5052235A (en) * 1989-03-15 1991-10-01 Mitsubishi Denki Kabushiki Kaisha Spaced bearing arrangement for coaxial engine starter
EP0497711A1 (en) * 1991-01-14 1992-08-05 Simu Security device for electrical actuator mechanism for roller shutters

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4519487A (en) * 1981-12-30 1985-05-28 Somfy Alternate manual or power auxiliary control device for controlling winding doors or the like
DE3608988A1 (en) * 1986-03-18 1987-09-24 Lothar Huber Device for the manual actuation of a winding shaft, which can be driven by an electric motor, e.g. of a roller blind
US5052235A (en) * 1989-03-15 1991-10-01 Mitsubishi Denki Kabushiki Kaisha Spaced bearing arrangement for coaxial engine starter
EP0497711A1 (en) * 1991-01-14 1992-08-05 Simu Security device for electrical actuator mechanism for roller shutters

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1098063A2 (en) * 1999-11-05 2001-05-09 Valeo Auto-Electric Wischer und Motoren GmbH Tubular motor
EP1098063A3 (en) * 1999-11-05 2003-06-18 Valeo Auto-Electric Wischer und Motoren GmbH Tubular motor
DE102008052843A1 (en) * 2008-10-23 2010-05-12 Küster Holding GmbH Drive unit for window lifter for side window of motor vehicle, has self-locking element e.g. spring, cooperating with transmission element and stopping drive, where element is provided between transmission element and shaft
DE102008052843B4 (en) 2008-10-23 2019-05-02 Küster Holding GmbH Drive unit for adjusting devices in motor vehicles
IT201800004927A1 (en) * 2018-04-27 2019-10-27 ELECTRIC GEAR MOTOR PERFECTED FOR ROLLING SHUTTERS.
EP3561216A1 (en) * 2018-04-27 2019-10-30 Moveup S.r.l. Improved geared motor for rolling shutters
IT202200008747A1 (en) * 2022-05-03 2022-08-03 Paolo Sacco ELECTRICAL DISCONNECTION DEVICE - DEVICE SUPPLIED WITH THE ELECTROMAGNETIC BRAKE, FOR CENTRAL GEARMOTORS FOR ROLLING SHUTTERS, ABLE TO INHIBIT THE OPERATION OF THE CENTRAL GEARMOTOR IF IT IS POSITIONED IN THE UNLOCKED STATE (REVERSIBLE CENTRAL GEARMOTOR)

Also Published As

Publication number Publication date
ITMC960134A1 (en) 1998-06-13
IT1289339B1 (en) 1998-10-02
EP0848137B1 (en) 2001-06-27
ES2159103T3 (en) 2001-09-16

Similar Documents

Publication Publication Date Title
US5222327A (en) Side mount garage door operator
JP2000191251A (en) Emergency releasing device
US4367660A (en) Window lift drive
US4885954A (en) Door lock actuator
GB2334069A (en) Roll-up door:electric and manual drive
SE466462B (en) DOERRLAAS
US5803150A (en) Device for operating a closure element moving at least approximately vertically
US8662140B2 (en) Composite pull-chain disc mechanism with brake function and electric door operator incorporated with this mechanism
EP0848137B1 (en) Electric gearmotor for metal rolling gates
CN211115282U (en) Self-closing driving mechanism for automobile door lock
US20230287942A1 (en) Clutch assembly
EP3112569A1 (en) Operating device for operating a wall part
US20020125076A1 (en) Elevator emergency escape device
US4137796A (en) Power opener with manual override
US20030057028A1 (en) Actuating device for emergency operation of a gearless drive machine of an elevator
CN110656836B (en) Door opening and closing device, door assembly and have its vehicle
CZ20001192A3 (en) Drive shaft set for gates having a drive shaft and/or torsion spring shaft
CN212027458U (en) Pedal door opener and door
KR200310496Y1 (en) water door of roll lift equipment
KR100967638B1 (en) Handling apparatus of floodgate winch
AU2003231812B2 (en) Movable barrier operator disconnect apparatus
EP1252412A1 (en) Drive system
KR102519146B1 (en) Exhaust gas window structure opening and closing device
CN220118532U (en) Clutch control device for window opener
CN211719455U (en) Clutch mechanism for electric operating device

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): ES FR IT

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 19981207

AKX Designation fees paid

Free format text: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AXX Extension fees paid

Free format text: AL;LT;LV;MK;RO;SI

RBV Designated contracting states (corrected)

Designated state(s): ES FR IT

17Q First examination report despatched

Effective date: 19990212

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): ES FR IT

ITF It: translation for a ep patent filed

Owner name: STUDIO TECN. ING. CLAUDIO BALDI

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2159103

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20011127

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20011129

Year of fee payment: 5

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021205

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030901

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20021205

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051204