US3819217A - Automatic locking device for roller blinds - Google Patents

Automatic locking device for roller blinds Download PDF

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Publication number
US3819217A
US3819217A US00356337A US35633773A US3819217A US 3819217 A US3819217 A US 3819217A US 00356337 A US00356337 A US 00356337A US 35633773 A US35633773 A US 35633773A US 3819217 A US3819217 A US 3819217A
Authority
US
United States
Prior art keywords
locking bolt
roller
roller blind
lever
locking device
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.)
Expired - Lifetime
Application number
US00356337A
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English (en)
Inventor
I Savino
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3819217A publication Critical patent/US3819217A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E06B9/80—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
    • 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
    • E06B2009/801—Locking arrangements
    • E06B2009/802—Locking arrangements located in or close to shutter box
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/76—Blind-slat holders

Definitions

  • ABSTRACT An automatic locking device for roller blinds, comprising a locking bolt movable under the action of a spring into engagement with the roller blind to prevent it from being lifted by burglars and from falling when the belt of the roller blind breaks, movement of said locking bolt being controlled by said belt acting against the pulling force of said spring on a lever c0nnected to said locking bolt and said spring.
  • This invention relates to an automatic locking device for roller blinds to prevent them from being lifted from outside by burglars and from falling when the control belt breaks.
  • an automatic locking device for roller blinds which comprises a locking bolt mounted horizontally, in a box accommodating a roller blind belt take-up roller, for sliding movement into engagement with the roller blind;
  • a lever extending generally perpendicularly to said locking bolt'and pivotally connected intermediately of its length to said locking bolt and with one of its ends to said box;
  • roller mounted for free idling rotation at the end of said lever opposed to said pivotally connected end thereof, said roller being movable into engagement with said roller blind belt;
  • a spring having one end thereof secured to said box and the other end to said lever in a position be tween said roller and said pivotal connection to said locking bolt to normally urge the latter into a roller blind engaging position.
  • the locking bolt is so connected to the roller blind belt that the locking bolt can only be re leased from inside the room where the device is mounted, by actuation of the roller blind control belt, and actuation of the locking device is effected automatically by pulling or releasing the roller blind control belt when the roller blind is to be lifted or lowered.
  • the locking bolt of the locking device When the roller blind is closed the locking bolt of the locking device is pushed against the roller blind and penetrates into the gaps existing between the slats of the roller blind or into holes provided therein for this purpose and thus the roller blind is blocked and cannot be moved.
  • the locking device operates automatically in that the locking bolt automatically assumes its locked position when the roller blind is closed and the locking bolt is released as soon as the roller blind belt is pulled in the usual operations of lifting or lowering the roller blind.
  • FIG. 1 is a transverse section through a box containing a roller blind belt take-up roller with an automatic locking device as proposed according to the present invention, the locking device being shown in longitudinal section;
  • FIG. 2 is a plan view of the locking device
  • FIG. 3 is a side view of the locking device.
  • a locking bolt 1 is horizontally slidably mounted in a sleeve 2 in a box a accommodating a take-up roller for a control belt c of a roller blind b which is formed of a plurality of individual horizontal slats with gaps therebetween into which the locking bolt 1 can be inserted.
  • a lever4 is arranged perpendicularly to the locking bolt 1 and connected thereto by a pivot 5, one end of the lever 4 being swingably connected by means of a pivot 6 to the box a and the other end being provided. with a yoke supporting a roller 7 for free idling movement therein, the roller 7 engaging the belt c.
  • a spring 3 has one end thereof secured to the box c and the other end to the lever 4 where it can be selectively fixed in any one of a plurality of holes 4' to vary the force of the spring 3.
  • the spring 3 thus biases the lever 4-to swing about the pivot 6 and causes movement of the locking bolt 1' in the sleeve 2 toward and into engagement with one of the gaps between the slats of the roller blind b.
  • the pivot 5 is firmly secured to the locking bolt 1 and received in slots 8 and 9 provided in the lever 4 and sleeve 2, respectively, to permit relative movement between the locking bolt 1 and the lever 4.
  • the operation of the locking device is as follows:
  • the locking bolt 1 When the roller blind b is closed the locking bolt 1 is urged by the pivot 5 toward the roller blind by the action of the lever 4 which is swingable about the pivot 6 as it is being pulled by the spring 3. So the free end of the locking bolt 1 can penetrate into a gap between a pair of slats of the roller blind b, as shown in FIG. I. In this position the locking bolt 1. prevents any movement of the roller blind b except by means of the control belt c. However, when the control belt c is pulled it will urge against the rotatable roller 7 of the lever 4 and return the latter against the action of the spring 3 to thereby withdraw the locking bolt 1 and release the roller blind.
  • This action of the belt c on the roller 7 is made possible by the particular arrangement of the belt 0 which, as shown in FIG. 1, assumes the position A when the roller blind is closed, but when the belt 0 is pulled it will assume the position B.
  • the belt 0 is pulled, i.e., under tension, both when the roller blind b is lifted and when it is lowered as in both cases the belt c is tensioned by the weight of the roller blind b.
  • the force of the spring 3 can be adjusted by varying its position of engagement in the holes 4' in the lever 4.
  • the locking bolt 1 and the lever 4 may also be formed integrally. Further, by appropriately changing the position of the locking bolt 1 the latter may also be directly controlled by the belt c without the interposition of the lever 4.
  • An automatic locking device for roller blinds comprising a locking bolt mounted horizontally, in a box accommodating a roller blind belt take up roller, for sliding movement into engagement with the roller blind; a lever extending generally perpendicularly to said locking bolt and pivotally connected intermediately of its length to said locking bolt and with one of its ends to said box; a roller mounted for free idling rotation at the end of said lever opposed to said pivotally connected end thereof, said roller being movable into engagement with said roller blind belt; and a spring having one end thereof secured to said box and the other end to said lever in a position between said roller and said pivotal connection to said locking bolt to normally urge the latter into a roller blind engaging position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Blinds (AREA)
US00356337A 1972-05-13 1973-05-02 Automatic locking device for roller blinds Expired - Lifetime US3819217A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT609/72A IT965613B (it) 1972-05-13 1972-05-13 Bloccaserranda automatico di sicurezza per serrande avvol gibili di finestre

Publications (1)

Publication Number Publication Date
US3819217A true US3819217A (en) 1974-06-25

Family

ID=11292168

Family Applications (1)

Application Number Title Priority Date Filing Date
US00356337A Expired - Lifetime US3819217A (en) 1972-05-13 1973-05-02 Automatic locking device for roller blinds

Country Status (7)

Country Link
US (1) US3819217A (de)
AT (1) AT324880B (de)
BE (1) BE799404A (de)
CH (1) CH556465A (de)
DE (1) DE2322805A1 (de)
FR (1) FR2184886B3 (de)
IT (1) IT965613B (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120255684A1 (en) * 2011-04-06 2012-10-11 Frank Krueger Fire or smoke protection device
ITBA20120071A1 (it) * 2012-11-20 2014-05-21 C M V I Group S R L Dispositivo meccanico di chiusura e bloccaggio di sicurezza atto ad essere universalmente applicato a tutti i sistemi movimentati con funi.
US9469178B2 (en) * 2014-10-02 2016-10-18 Hyundai Motor Company Roller blind curtain device for car

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3023739A1 (de) * 1980-06-25 1982-01-14 Hans Joachim 6232 Bad Soden Lincke Selbsttaetige rollandensicherung
DE9104203U1 (de) * 1991-04-08 1992-08-06 Gust. Alberts Gmbh & Co Kg, 5974 Herscheid Selbsttätig wirkender Rolladenverschluß
DE202015002553U1 (de) 2015-04-02 2015-06-22 Marina Veldhuizen Hochschiebesicherung für Rollladen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2019084A (en) * 1931-12-23 1935-10-29 R C Mahon Company Closure member
US2921628A (en) * 1957-04-09 1960-01-19 Alvarez Alfonso Blind having relatively adjustable slats
US3302692A (en) * 1964-02-10 1967-02-07 Grau Jaime Colom System for tilting the slats in roller blinds having tilting and separable slats

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2019084A (en) * 1931-12-23 1935-10-29 R C Mahon Company Closure member
US2921628A (en) * 1957-04-09 1960-01-19 Alvarez Alfonso Blind having relatively adjustable slats
US3302692A (en) * 1964-02-10 1967-02-07 Grau Jaime Colom System for tilting the slats in roller blinds having tilting and separable slats

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120255684A1 (en) * 2011-04-06 2012-10-11 Frank Krueger Fire or smoke protection device
US8789576B2 (en) * 2011-04-06 2014-07-29 Stoebich Brandschutz Gmbh Fire or smoke protection device
ITBA20120071A1 (it) * 2012-11-20 2014-05-21 C M V I Group S R L Dispositivo meccanico di chiusura e bloccaggio di sicurezza atto ad essere universalmente applicato a tutti i sistemi movimentati con funi.
US9469178B2 (en) * 2014-10-02 2016-10-18 Hyundai Motor Company Roller blind curtain device for car

Also Published As

Publication number Publication date
IT965613B (it) 1974-02-11
AT324880B (de) 1975-09-25
DE2322805A1 (de) 1973-11-22
FR2184886B3 (de) 1976-04-30
FR2184886A1 (de) 1973-12-28
BE799404A (fr) 1973-08-31
CH556465A (it) 1974-11-29

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