US3796451A - Door holder with electrical control - Google Patents

Door holder with electrical control Download PDF

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Publication number
US3796451A
US3796451A US3796451DA US3796451A US 3796451 A US3796451 A US 3796451A US 3796451D A US3796451D A US 3796451DA US 3796451 A US3796451 A US 3796451A
Authority
US
United States
Prior art keywords
door
lever
holder
latch
end portion
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
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English (en)
Inventor
J Schultz
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.)
Eaton Corp
Yale Security Inc
Original Assignee
Eaton Corp
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 Eaton Corp filed Critical Eaton Corp
Application granted granted Critical
Publication of US3796451A publication Critical patent/US3796451A/en
Assigned to YALE SECURITY INC., A CORP. OF DE. reassignment YALE SECURITY INC., A CORP. OF DE. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SCOVILL INC.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/22—Additional arrangements for closers, e.g. for holding the wing in opened or other position
    • E05F3/221—Mechanical power-locks, e.g. for holding the wing open or for free-moving zones
    • E05F3/222—Mechanical power-locks, e.g. for holding the wing open or for free-moving zones electrically operated
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/46—Magnets
    • E05Y2201/462—Electromagnets
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/132—Doors
    • 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
    • Y10T292/28—Extension link
    • Y10T292/282—Multiple
    • 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
    • Y10T292/28—Extension link
    • Y10T292/305—Swinging catch

Definitions

  • ABSTRACT A door holder which is mounted on the top portion of a door frame has a controlled shaft adapted to be integrally secured to an arm of a door closer on the door, replacing the usual simple pivot on the frame.
  • a holder lever having a considerable length rotates with the shaft and may be engaged by detent cam surfaces on a pivoted latch lever for holding the door when an elcctromagnet applies pressure to the latch lever.
  • the latch lever is somewhat longer than the holder lever. and a preferred angle of the detent cam surfaces is 3 relatively to the holder lever, enabling the electromagnet to act with moderate pressure: to hold the.
  • the detent surfaces of the latch lever have re versed shapes for holding the holder lever against movement in each direction, being effective to hold the door in two positions selectively when the holder shaft is connected to a type of door closer having an arm that reverses its motion during a single closing movement of the door.
  • an electromagnet that is positioned between a door and a wall forms an obstruction that may be unacceptable. Moreover, such an electromagnet cannot well be utilized where the open position of the door is to be somewhat distant from a wall or bracket, and it also has presented problems due to the amounts of power consumed.
  • the prior art does contain electrically controlled door holders that act between the door and door frame, sometimes being mounted on the frame, but the earlier holders of that description have not found wide acceptance because they generally utilize mechanisms that are complex, and do not offer dependable operation in some instances.
  • I now contribute by my invention a novel door holder that will be electrically controlled while offering very satisfactory performance, and that will effectively overcome the objections found in the electric door holders that the prior art has been able to develop.
  • a holder lever will rotate about an axis on a housing that is mounted on the door frame, and will be so connected to the door as to rotate incidentally to movements of the door.
  • An end portion of the holder lever will move in a line that is spaced a considerable distance from the axis about which the lever rotates, and I mount a latch member in position to engage in cam relation to the end portion of the lever in that line.
  • Electrically controlled means will apply yielding pressure for holding the latch member in its cam relation so that holding of the door will be controlled in part electrically and in part by pressures that may be applied directly to the door.
  • my invention it is easily possible by my invention to achieve more than one effective holding position of the door while requiring little or no change in the construction of the holder.
  • the latch member of my novel holder it will merely be necessary to equip the latch member of my novel holder with detent surfaces that will engage the end portion of the holder lever when the door is in different positions relatively to the door frame, all while preserving the simple nature of my holder construction.
  • I then may connect my door holder to a door through a type of door closer on which an arm reverses its motion during a movement of the door in one direction, achieving efiective holding of the door in two widely spaced holding positions with no need to increase the size or the quantity of parts.
  • FIG. 1 shows a perspective view of a preferred form of my door holder mounted on a door frame and connected to a door closer on the door;
  • FIG. 2 shows a plan view, partly in section, of the holder construction
  • FIG. 3 shows a sectional view substantially on the broken line 33 in FIG. 2;
  • FIG. 4 shows a schematic view illustrating the motion of a type of connecting arm that may be utilized with my holder.
  • FIG. I of the drawing I show my door holder H mounted on a top portion of a door frame F and connected to the door D through a usual type of door closer C, having a main arm 10 pivotally connected to a forearm 11.
  • a main arm 10 pivotally connected to a forearm 11.
  • the closer arms 10, 11 will go through the motions indicated in FIG. 4 during movements of the door D. I shall refer further to FIG. 4 while explaining a part of my invention in due course.
  • the door holder I-I comprises a housing 12 that may have a simple box-like shape, and a shaft 13, FIGS. 2 and 3, that is mounted through bearings 14, 15 to rotate in a vertical axis in openings formed through upper and lower walls of the housing 12. Tapered end portions 16 and 17 extend beyond the housing walls, permitting a connecting arm such as the closer arm 11 to be integrally secured to either end of shaft 13, depending upon the hand of operation that is required by a particular installation.
  • I show the closer arm 11 secured to the lower shaft end 17, utilizing a screw 18 engaging a threaded bore 19 that extends longitudinally through shaft 13.
  • a holder lever 20 On the shaft 13 I mount a holder lever 20 that has a considerable length.
  • a set screw 21 is threaded into the bore 19 of the shaft to secure an end portion 22 of lever 20 in position in a cross bore 23.
  • an opposed end portion 24 of holder lever 20 When shaft 13 rotates, an opposed end portion 24 of holder lever 20 then will rotate in a line that is spaced a considerable distance relatively to the axis of shaft '13.
  • Upper and lower sleeves 25, 26 assembled on the shaft 13 form spacers engaging between holder lever and the housing walls to hold the shaft in assembled position on the casing.
  • a latch lever 27 is mounted for movement relatively to the line in which the end portion 24 of the holder lever rotates, one end of the latch lever being pivoted on a pin 28 that a screw 29 holds in assembled position on the housing 12.
  • a medial portion of lever 27 is formed with detent surfaces 30, 31 that will engage in cam relation to the end portion 24 of holder lever 20, and the opposed end of latch lever 27 is connected to electrically controlled means comprising an electromagnet 32.
  • electromagnet mounted by screws 33 on the housing 12, and equipped with an armature 34 connected through a link 35 to a pin 36 on latch lever 27.
  • the electromagnet 32 when energized will act for holding the detent surface or 31, as the case may be, with yielding pressure against the end portion 24 of holder lever 20.
  • each detent surface 30, 31 is formed to offer a cam surface which, when engaging the holder lever 20, will lie at an angle in the range from 2 to 6 relatively to the longitudinal axis of lever 20.'Once that is understood and appreciated, persons who are skilled in the art will be able to design more specific dimensions of holder lever 20, latch lever 27 and cam angle, as may be necessary to meet differing conditions of use. Actually, I have found that my door holder operates well when the effective length of holder lever 20 is approximately two inches, that of latch lever 27 approximately 2% inches and the cam angle of each detent surface 30, 31 is 3 relatively to the longitudinal axis of the holder lever.
  • the opposed shapes of the detent surfaces 30, 31 on the latch lever 27 will be effective for holding the door D in two positions selectively, as for example at 10 or 90 relatively to its closed position. Moreover, that may be done while the holder lever 20 merely need move through a relatively small angle between its extreme positions, and with no need to complicate the parts or increase the size of the door holder.
  • the holding positions of my door holder actually may be adjusted rather easily, it merely being necessary to relieve the pressure of the screw 18 and to loosen the closer arm 11 on the tapered end portion 17 of the holder shaft so that the arm may be rotated and again secured in a desired position on the shaft.
  • a housing mounted on a door frame
  • a holder lever mounted to rotate about an axis on the housing and operatively connected to the door so as to rotate incidentally to movements of the door as the door moves between an open position and a closed position
  • an end portion of said holder lever rotating in an arcuate path that is spaced a considerable distance relatively to the axis in which the lever rotates
  • a latch member having a surface movable into cam relation to said end portion of the holder lever in said artion, and said surface of the latch member being formed at an angle that will enable the end portion of the holder lever to override the predetermined pressure applied by the electrically controlled means when a pressure sufficient to overcome the predetermined pressure applied to the lock member is applied to the door.
  • said latch member has a first and second surface facing in opposed directions relatively to each other whereby to be effective for holding the door against movements in one direction relatively to the door frame when the holder lever is so connected to the door as to rotate in opposed directions during said movements in one direction.
  • a housing mounted on a door frame, a shaft mounted on the housing and connected to the door through an arm that will rotate the shaft in a first and a second direction incidentally to movements of the door as the door moves between a closed and an open position, a holder lever mounted to rotate with said shaft, a latch member movable to position engaging said holder lever and having a first and a second detent surface for holding said lever against rotation in each of opposed directions in said housing, and electrically controlled means for holding said lever in either the first or the second detent surface thereby to hold the door in two selectively open positions, said lever being held in the first detent surface to prevent said shaft from being rotated in the first direction and being held in the second detent surface to prevent said shaft from being rotated in the second direction.
  • said latch member is a latch lever having an end portion pivoted on the casing, said detent surfaces being formed on a medial portion of the lever, and said electrically controlled means acting relatively to the opposed end portion of the lever.
  • said electrically controlled means apply yielding pressure to the latch member
  • said detent surfaces comprise cam surfaces for engaging the holder lever and formed each at an angle that will enable the holder lever to override said yielding pressure when a predetermined amount of pressure is applied to the door.
  • said electrically controlled means comprise an electromagnet connected to said opposed end portion of the latch lever, said latch lever having an effective length that equals at least the effective length of the holder lever, and each of said cam surfaces when engaging the holder lever lying substantially at an angle of 3 relatively to the longitudinal axis of said holder lever.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
US3796451D 1972-04-26 1972-04-26 Door holder with electrical control Expired - Lifetime US3796451A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24753472A 1972-04-26 1972-04-26

Publications (1)

Publication Number Publication Date
US3796451A true US3796451A (en) 1974-03-12

Family

ID=22935266

Family Applications (1)

Application Number Title Priority Date Filing Date
US3796451D Expired - Lifetime US3796451A (en) 1972-04-26 1972-04-26 Door holder with electrical control

Country Status (6)

Country Link
US (1) US3796451A (fr)
JP (1) JPS4942137A (fr)
DE (1) DE2320721A1 (fr)
FR (1) FR2182474A5 (fr)
GB (1) GB1384086A (fr)
IT (1) IT984120B (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3926461A (en) * 1974-08-01 1975-12-16 Rixson Firemark Electrically actuated door holder and release
US4069544A (en) * 1977-03-23 1978-01-24 Rixson-Firemark, Inc. Electrically actuated door holder and release
US4314722A (en) * 1979-08-10 1982-02-09 Reliable Security Systems, Inc. Timing apparatus for delaying opening of doors
US4401346A (en) * 1981-03-19 1983-08-30 Aircraft Dynamics Corporation Apparatus for controlling the operation of a door
US5426819A (en) * 1991-11-25 1995-06-27 Rohn; William B. Door holding method and apparatus
US20030030286A1 (en) * 2001-07-19 2003-02-13 Stabilus Gmbh Catch between two assemblies moveable in relation to one another
WO2003016663A1 (fr) * 2001-08-17 2003-02-27 Rds Innovations Limited Systeme de securite de porte
US9121217B1 (en) * 2001-07-13 2015-09-01 Steven M. Hoffberg Intelligent door restraint
US20180230727A1 (en) * 2017-02-14 2018-08-16 Steve Cummings Automatic lock-unlock door safety control

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2611607A1 (de) * 1976-03-19 1977-09-29 Eaton Gmbh Feststellvorrichtung fuer tuer-, tor- o.dgl. fluegel
DE3433891A1 (de) * 1984-09-14 1986-03-27 Geze Gmbh, 7250 Leonberg Feststellvorrichtung fuer tuerschliesser
JPH079886Y2 (ja) * 1988-12-29 1995-03-08 株式会社南星 集材機等の搬器における荷上索の張力保持装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1471455A (en) * 1922-08-15 1923-10-23 Frederick C Ernst Electric door opener
US1475692A (en) * 1922-04-29 1923-11-27 Silas D Farmer Latch
US1993223A (en) * 1931-06-10 1935-03-05 American Hardware Corp Door controlling system and apparatus
US3347584A (en) * 1965-03-19 1967-10-17 Gen Motors Corp Vehicle closure latch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1475692A (en) * 1922-04-29 1923-11-27 Silas D Farmer Latch
US1471455A (en) * 1922-08-15 1923-10-23 Frederick C Ernst Electric door opener
US1993223A (en) * 1931-06-10 1935-03-05 American Hardware Corp Door controlling system and apparatus
US3347584A (en) * 1965-03-19 1967-10-17 Gen Motors Corp Vehicle closure latch

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3926461A (en) * 1974-08-01 1975-12-16 Rixson Firemark Electrically actuated door holder and release
US4069544A (en) * 1977-03-23 1978-01-24 Rixson-Firemark, Inc. Electrically actuated door holder and release
US4314722A (en) * 1979-08-10 1982-02-09 Reliable Security Systems, Inc. Timing apparatus for delaying opening of doors
US4401346A (en) * 1981-03-19 1983-08-30 Aircraft Dynamics Corporation Apparatus for controlling the operation of a door
US5426819A (en) * 1991-11-25 1995-06-27 Rohn; William B. Door holding method and apparatus
US9995076B1 (en) 2001-07-13 2018-06-12 Steven M. Hoffberg Intelligent door restraint
US9121217B1 (en) * 2001-07-13 2015-09-01 Steven M. Hoffberg Intelligent door restraint
US11187022B1 (en) 2001-07-13 2021-11-30 Steven M. Hoffberg Intelligent door restraint
US6920669B2 (en) * 2001-07-19 2005-07-26 Stabilus Gmbh Catch between two assemblies moveable in relation to one another
US20030030286A1 (en) * 2001-07-19 2003-02-13 Stabilus Gmbh Catch between two assemblies moveable in relation to one another
WO2003016663A1 (fr) * 2001-08-17 2003-02-27 Rds Innovations Limited Systeme de securite de porte
US20040239501A1 (en) * 2001-08-17 2004-12-02 Simpson Robert David Door security system
CN1303303C (zh) * 2001-08-17 2007-03-07 Rds创意有限公司 门安全系统
US7350836B2 (en) * 2001-08-17 2008-04-01 Rds Innovations Limited Door security system
US20180230727A1 (en) * 2017-02-14 2018-08-16 Steve Cummings Automatic lock-unlock door safety control
US10648214B2 (en) * 2017-02-14 2020-05-12 Steve Cummings Automatic lock-unlock door safety control

Also Published As

Publication number Publication date
DE2320721A1 (de) 1973-11-15
IT984120B (it) 1974-11-20
GB1384086A (en) 1975-02-19
FR2182474A5 (fr) 1973-12-07
JPS4942137A (fr) 1974-04-20

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Legal Events

Date Code Title Description
AS Assignment

Owner name: YALE SECURITY INC., OLD CHARLOTTE HIGHWAY AT AIRPO

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SCOVILL INC.;REEL/FRAME:004485/0690

Effective date: 19851028