US3543327A - Automatic door closing device with detent to hold door open - Google Patents

Automatic door closing device with detent to hold door open Download PDF

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Publication number
US3543327A
US3543327A US739109A US3543327DA US3543327A US 3543327 A US3543327 A US 3543327A US 739109 A US739109 A US 739109A US 3543327D A US3543327D A US 3543327DA US 3543327 A US3543327 A US 3543327A
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US
United States
Prior art keywords
pin
door
plunger
link arm
swing arm
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
US739109A
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English (en)
Inventor
Gunnar Nilsson
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.)
Optimus AB
Original Assignee
Optimus AB
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 Optimus AB filed Critical Optimus AB
Application granted granted Critical
Publication of US3543327A publication Critical patent/US3543327A/en
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
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
    • E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
    • E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
    • E05C17/32—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of two or more pivoted rods
    • 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
    • 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
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32541—Rotatable members resiliently biased to one position

Definitions

  • the present invention is concerned with an automatic door closing device of the type having a shaft rotatably mounted in the housing of the device and which for the purpose of closing the door is actuated by a spring in one direction of swing, the shaft carrying a swing arm which at its one end is pivotally connected with one end of a link arm.
  • the other end of the link arm is intended to be pivotally secured to the door when the housing of the closing device is attached to the wall above the door opening or to the door frame itself.
  • the link arm is pivotally secured to the door frame or to the wall, the housing of the door closing device together with the swing arm will be mounted on the door. Either arrangement is conventional.
  • the object of the present invention is to provide a releaseable detent mechanism which enables the arms to be latched in selectable angular positions, to hold the door in a corresponding open position.
  • FIG. 1 shows a longitudinal section through the swing arm and the link arm in a door closing device of known design
  • FIG. 2 is a plan view of the two arms
  • FIG. 3 is an enlarged section of a modified design of the pivot between the arms.
  • FIG. 4 is a section through the line 4-4 in FIG. 3.
  • the door closing device proper which is not shown in the drawings, is of the type which comprises a housing in which is displaceably mounted a plunger operatively connected with a rotatably mounted sleeve into which the shaft in FIG. 1 is capable of being inserted and locked in a known manner.
  • the plunger is spring operated so that the shaft 10 is spring actuated in one swinging direction, i.e., the direction in which the door is closed.
  • a swing arm 11 is attached to the shaft 10.
  • the swing arm 11 is pivotally connected at its outer end with a link arm 13, by means of a pin 12.
  • the link arm 13 comprises an outer sleeve 13a and a nut member 13b which is pivotally connected to said sleeve 13a by a pin 14 and which is capable of being adjusted by a screw atent .0v
  • fitting 13d Pivotally connected at the outer end of the screw is a fitting 13d, which is intended to be attached to a door when the housing of the closing device is fastened to the door frame or to the wall above the door frame.
  • the outer end of the sleeve-like part 13a of the link arm 13 is fork-shaped and presents two lug members 15, 16.
  • the pin 12 passes through holes 17, 18 disposed in said lugs 15, 16 and is pivotally mounted therein.
  • the hole 17 is larger than the hole 18, and accordingly the pin 12 presents in relation thereto a large diameter at 19 and a small diameter at 20.
  • the pin 12 supports between the lugs 15, 16 a cam plate 21 which in the shown embodiment is adjustably arranged on the pin by means of a splined wheel 22 positioned on said pin and a corresponding inner splined ring 23 positioned in the hole in the cam plate.
  • the cam disc can therefore be mounted in the desired position of rotation relative to the pin 12.
  • the lower end 24 of the pin 12 is of square cross section, which fits into the corresponding, essentially square hole 18 located in the end of the arm 11.
  • the pin 12 is fixed in its axial position by means of a nut 26 and a washer 27.
  • the cam plate is provided with a latching recess 28, in which a latching plunger 29 engages and latches in the shown position the arms 11, 13 against relative rotation. This position constitutes a desired open position for a door provided with the door closing device.
  • the latching plunger 29 is displaceably mounted in an axial hole 30 in an end wall within the sleeve 13a.
  • the end wall forms the bottom of a cylindrical recess in the sleeve, where a compression spring 31 is positioned between a flange 29a on the plunger 29 and a screw plug 32. The tension of the spring is adjusted by turning the screw plug 32.
  • the rear end of the plunger 29 is guided by a hole in the rear of the plug.
  • the pivot connection between the members 13a and 1230 enables the member to be swung to one side to facilitate dismantling of plug 32.
  • the link arm 13 can be easily adjusted to the desired length by means of the screw 13c.
  • the latching recess 28 and the end of the latching plunger 29 are designed so that the latching plunger can slide out of the latch recess when the arm 13 is subjected to a certain load.
  • the door can be closed, however, by exerting a certain pressure on the door in the closing direction thereof, whereupon the latching plunger 29 springs back and slides out of the latching recess.
  • the cam plate 21 with its recess 28 thus constitute a releaseable detent mechanism.
  • FIG. 3 shows a variation of the invention, in which the pin 12 is provided with a splined wheel 34 which cooperates with a corresponding, internal splined ring 35 positioned in the hole located in the end of arm 11.
  • the pin 12 can be adjusted in different positions of rotation relative to the arm 11. In certain instances this adjustment is more easily accomplished in the alternative embodiment than in the embodiment shown in FIG. 1.
  • this pivot functions the same as that shown in FIG. 1, in that it has been provided with a cam plate presenting a latching recess into and out of which a latching plunger can snap in the manner described above.
  • an automatic door closing device of the type including a shaft rotatably mounted in the housing of the device and which for the purpose of closing the door is actuated by a spring in one direction of rotation, a swing arm secured at one end to said shaft, and a link arm pivotally connected at one end thereof to the opposite end of said swing arm, the opposite end of said link arm being adapted to be pivotally secured to the door when the door closing device is secured to the door frame or wall, or vice versa
  • the improvement wherein one end portion of said link arm is fork-shaped and terminates in two parallel lug members having aligned holes therein for mounting a pivot pin connecting adjacent ends of said link arm and swing arm, a cam plate located between said lugs and non-rotatably mounted on said pivot pin, said cam plate being provided with at least one latching recess, a spring-operated latching plunger displaceably mounted in said link arm and which engages said cam plate and the latching recess therein thereby to releaseably hold the door open against the door closing force exerted

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
US739109A 1967-06-30 1968-06-21 Automatic door closing device with detent to hold door open Expired - Lifetime US3543327A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9995/67*A SE302262B (OSRAM) 1967-06-30 1967-06-30

Publications (1)

Publication Number Publication Date
US3543327A true US3543327A (en) 1970-12-01

Family

ID=20277989

Family Applications (1)

Application Number Title Priority Date Filing Date
US739109A Expired - Lifetime US3543327A (en) 1967-06-30 1968-06-21 Automatic door closing device with detent to hold door open

Country Status (4)

Country Link
US (1) US3543327A (OSRAM)
DE (1) DE1784038A1 (OSRAM)
GB (1) GB1213890A (OSRAM)
SE (1) SE302262B (OSRAM)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4754522A (en) * 1985-12-18 1988-07-05 Richard Hucknall Door holders for selectively positioning doors against closure
US4984331A (en) * 1985-12-18 1991-01-15 Richard Hucknall Door holder including a removable cam
US5274880A (en) * 1990-05-23 1994-01-04 Sugatsune Industrial Co., Ltd. Door closer
CN102251720A (zh) * 2011-07-07 2011-11-23 浙江佑安高科消防系统有限公司 一种闭门器的扭矩传递连接结构
US20140145576A1 (en) * 2012-11-29 2014-05-29 Mansfield Engineered Components, Inc. Door closure mechanism for refrigerator or other appliance
FR3069005A1 (fr) * 2017-07-13 2019-01-18 Emmanuel Dessane Systeme rotatif bloquant pourvu d'axes et de pinces.
CN116658021A (zh) * 2023-05-16 2023-08-29 蔡国赐 一种用于闭门器的连接装置及闭门器
US11859434B1 (en) 2017-03-01 2024-01-02 Mansfield Engineered Components, LLC Dampened hinge for a refrigerator door or other door

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3033496C2 (de) * 1980-09-05 1985-07-25 Casma di V. Marinoni & Figli, Magenta In Offenstellung verrastbares Türschließergestänge
DE102011056961A1 (de) * 2011-07-13 2013-01-17 Dorma Gmbh + Co. Kg Drehflügelbetätiger-Gestängearm

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US661563A (en) * 1900-04-04 1900-11-13 William F Stockford Handle-bar.
US1225322A (en) * 1916-08-04 1917-05-08 Charles Forth Door-closing mechanism.
US1646406A (en) * 1926-08-06 1927-10-25 Isley Gilbert William Holder arm for door checks and closers
US1687009A (en) * 1925-11-04 1928-10-09 Sargent & Co Detent mechanism for door closers and the like
US1749979A (en) * 1926-10-04 1930-03-11 Norton Lasier Company Door-holding means

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US661563A (en) * 1900-04-04 1900-11-13 William F Stockford Handle-bar.
US1225322A (en) * 1916-08-04 1917-05-08 Charles Forth Door-closing mechanism.
US1687009A (en) * 1925-11-04 1928-10-09 Sargent & Co Detent mechanism for door closers and the like
US1646406A (en) * 1926-08-06 1927-10-25 Isley Gilbert William Holder arm for door checks and closers
US1749979A (en) * 1926-10-04 1930-03-11 Norton Lasier Company Door-holding means

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4754522A (en) * 1985-12-18 1988-07-05 Richard Hucknall Door holders for selectively positioning doors against closure
US4984331A (en) * 1985-12-18 1991-01-15 Richard Hucknall Door holder including a removable cam
US5274880A (en) * 1990-05-23 1994-01-04 Sugatsune Industrial Co., Ltd. Door closer
CN102251720A (zh) * 2011-07-07 2011-11-23 浙江佑安高科消防系统有限公司 一种闭门器的扭矩传递连接结构
US20140145576A1 (en) * 2012-11-29 2014-05-29 Mansfield Engineered Components, Inc. Door closure mechanism for refrigerator or other appliance
US9095214B2 (en) * 2012-11-29 2015-08-04 Mansfield Engineered Components, Inc. Door closure mechanism for refrigerator or other appliance
US11859434B1 (en) 2017-03-01 2024-01-02 Mansfield Engineered Components, LLC Dampened hinge for a refrigerator door or other door
FR3069005A1 (fr) * 2017-07-13 2019-01-18 Emmanuel Dessane Systeme rotatif bloquant pourvu d'axes et de pinces.
CN116658021A (zh) * 2023-05-16 2023-08-29 蔡国赐 一种用于闭门器的连接装置及闭门器

Also Published As

Publication number Publication date
GB1213890A (en) 1970-11-25
DE1784038A1 (de) 1971-07-08
SE302262B (OSRAM) 1968-07-08

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