US3701180A - Door closer - Google Patents

Door closer Download PDF

Info

Publication number
US3701180A
US3701180A US51768A US3701180DA US3701180A US 3701180 A US3701180 A US 3701180A US 51768 A US51768 A US 51768A US 3701180D A US3701180D A US 3701180DA US 3701180 A US3701180 A US 3701180A
Authority
US
United States
Prior art keywords
slide
slide means
end wall
holding portion
movement
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
US51768A
Other languages
English (en)
Inventor
Dietrich Jentsch
Herbert Cleff
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.)
Doerken and Mankel KG
Original Assignee
Doerken and Mankel KG
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 Doerken and Mankel KG filed Critical Doerken and Mankel KG
Application granted granted Critical
Publication of US3701180A publication Critical patent/US3701180A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/10—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction
    • E05F3/104—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction with cam-and-slide transmission between driving shaft and piston within the closer housing
    • 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

Definitions

  • ..E05t 3/20 rest itio and connecting means connects the slide 1 Field of Search "16/82, 851 with a structural element capable of moving between a 4 185; 267/140 closed and an open position so that the slide moves toward working position as the structural element [56] References cued moves away from its closed position.
  • An elastomeric UNITED STATES PATENTS braking element is positioned in the path of the slide a and serves to abutt ngly engage the slide and brake the 2,909,801 lO/ 1959 Ellis et al.
  • the present invention relates generally to a closing device, and more particularly to a closing device for doors and analogous structural elements.
  • Closing devices for doors and such structural elements are already known.
  • Connecting means connects the slide means with the door or other'structural element so that the slide means moves from its rest position towards its working position as the door moves from closed to open position.
  • closing devices of this type including the last-mentioned type, it is frequently desirable to provide for resilient braking of the door movement as the door reaches its widest opening position. This is intended to prevent hard abutment of the door against another element, for instance a wall, or to prevent excessive stress being placed upon the closing device itself.
  • An additional object of the invention is to provide such a closing device which is to be simple in its construction and operation.
  • a closing device for doors and analogous structural elements which, in one embodiment, comprises-briefly statedelongated housing means and slide means which is longitudinally slidable in the housing means between a rest position and a working position in a predetermined path.
  • Biasing means permanently urges the slide means to rest position.
  • Connecting means operatively connects the slide means with a structural element which is capable of performing movements between a closed and an open position, for effecting sliding movement of the slide means towards its working position in response to movement of the structural element from itsclosed p'osition.
  • An elastomeric braking element is provided in accordance with the present invention; it is positioned in the path of the slide means and is operative for braking the movement of the latter in response to the slide means approaching its working position.
  • the braking means is in form of an elastomeric braking element
  • the elastomeric deformation under pressure of elastomeric braking elements or buffers takes place in accordance with progressively increasing characteristic lines, and the masses to be accelerated as the slide moves against the elastomeric braking element are minimal. This causes minimum stresses during the braking action and the door is braked quietly and without any noise to all intents and purposes.
  • the elastomeric braking element in form of an elongated elastomeric stud the longitudinal axis of which extends in parallelism with the path of the slide means.
  • This makes for a particularly simple construction and for maximum utilization of the deformation capability of the stud.
  • this construction is utilized, to provide one end wall of the elongated housing on which the stud is to be mounted with a cap or cup-shaped holding portion which is screw threadedly connected with thee'nd wall, and the pos- 3 open side of which faces lengthwise of the path towards the slide means. The one end portion of the stud is then received and held in the cap or cup-shaped holding portion.
  • the end wall with a through-going aperture or bore which is internally tapped, to provide the cup-shaped holding portion with external screw threads and to have a part or section of the cup-shaped holding section located exteriorly of the end wall so that it can be gripped there and threaded farther into or out of the interior of the housing means. Since this can take place from the outside adjustment of the braking action is very simple, it being evident that threading of the cup-shaped holding portion deeper into the interior of the housing means moves the elastomeric stud closer to the slide means and thus results in earlier abutment between them as the slide means moves towards its working position.
  • the free end portion of the stud-shaped elastomeric member with a pressure-distributing cover, for instance of metallic material or the like, but it is generally preferred to leave it uncovered, and to have the end face of the slide means which is to abut against it, be subdivided rather than an even, continuous surface.
  • This provides for maximum pressure distribution because the areas of surface-to-surface contact alternate with intermediate areas where the material of the stud can yield readily, and this reduces the forces acting upon the stud and provides for an ad vantageous characteristic line in the absorption of the kinertic energy.
  • Different types of materials are suitable for making the elastomeric stud. They include various different synthetic plastics, and one type which has been found to be particularly advantageous is on an ethylene-glycol adipic acid polyester base. These materials not only have the requisite elastomeric characteristics, but are also highly resistant to various other substances, including the liquids which are usually employed in the interior of such closing devices as damping means for damping the movement of the device back towards its rest position. In addition they have a better elastomeric deformability than many other materials among the synthetic plastics. I
  • FIG. 1 is a longitudinal partial section through an embodiment according to the present invention
  • FIG. 2 is a section taken on the line ll-ll'in FIG. 1;
  • FIG. 3 is a partially sectioned end view of the device in FIGS. 1 and 2.
  • first section 10 may be considered a drive-component section, and a second cylindrical section 12 connected with the section 10 by means of screws 11 and serving as a damping or buffer section.
  • the section 12 abuts against the section 10 with a widened connection head 13 as illustrated (see FIGS. 1 and 2).
  • the interior of the section 10 is accessible by means of an opening which is normally closed with a cover 14.
  • a turnable shaft 15 which is tumably mounted in a first anti-friction bearing 16 mounted in the shaft 14 and a second anti-friction bearing 17 mounted at the opposite side of the section 10 in a side wall.
  • a seal 18 is associated with the bearing 17 to prevent the escape of fluid from the interior.
  • the shaft 15 is connectable in known manner with a door or an analogousstructural element which moves between an open and closed position, and vice versa. The-arrangement is such that movement of the door between a closedand an open position causes the shaft 15 to turn in one direction, and subsequent moving of the from open to closed position causes the shaft 15 to turn in the other opposite direction.
  • the shaft 15 carriers a cam 19 which is turnable and located between two plate-like members (see FIG. 2 in particular) which together constitute a slide 20. Also located between the members constituting the slide 20 are rollers 21 which are turnable and which cooperate with the cam 19.
  • the slide 20 is slidably guided for movement lengthwise of the section 10 (see FIGS. 1 and 2) by virtue of the fact that the shaft 15 extends through two longitudinal slots 22 provided in theplate members of the slide means 20, and for supporting purposes a ring 23 may be provided in addition to roll on the inner circumferential surface bounding the slot 1 or (if two such rings are provided) bounding both of the slots 22.
  • a coupling rod 25 is releasably connected with the slide means 20 by screws 24 and extends in part into the cylindrical section 12 of the housing. Its free end is coupled with a damping piston 27 which serves also as an abutment for a restoring spring 26.
  • the spring 26 serves restoring purposes and abuts at its end closer to the section 10 against an abutment 28 which surrounds the coupling rod 25 and which in turn is coupled via a pair of pull rods 29 which are mostly located outside the confines of the housing section 12 with a head or bridge 31 also located outside the housing section 12 and provided with a pressure-adjusting screw 30.
  • the abutment 28 can be adjusted by means of the pull rod 29 and the pretensioning of the spring 26 can be varied in this manner.
  • a further advantage of this construction is the fact that if desired the portion 33 can be removed from the exterior and the stud 34 can be replaced with a differently dimensioned stud providing earlier, later, greater or lesser braking action.
  • the stud 34 can be replaced with a differently dimensioned stud providing earlier, later, greater or lesser braking action.
  • the stud 34 just 7 as it is possible to protect the free end face of the stud acting in the opposite direction than before, and tends to restore the sliding means 20-and thereby the door which is connected with it via the shaft 15-'to the position in which the sliding means 20 will be located as illustrated in FIGS. 1 and 2.
  • the speed of this return movement from leftto right-hand side in FIG. 1 is limited and controlled by the damping device whose, operation, however, is of no concern in the context of the present invention.
  • the invention provides for the illustrated and disclosed elastomeric braking element.
  • this includes a cup-shaped holding portion 33 which is externally threaded and is threaded from the outer side of a housing end wall 32 to an internally tapped opening so that the open side of the cup-shaped holding portion 33 faces the interior of the section 10.
  • a stud 34--which may be of cylindrical or similar con- 4 figuration-and which consists of elastomeric material, is received in and held by the holding portion 33.
  • the elastomeric material is preferably a synthetic plastic material based on ethylene-glycol adipic acid polyester.
  • the other longitudinally spaced free end portion of the stud 34 projects freely into the path of the slide means 20 and the longitudinal axis of the stud 34 is approximately parallel with the path of movement of the slide means 20..
  • FIGS. l-3 where the holding member 33 is accessible from the exterior of the end wall of the housing section 10, has the advantage not only that the braking action can be varied at will by affording access at the exterior to the holding portion 33, but also that where the braking action is not necessary or desired it permits removal 34 which abuts against the slide means 20 with a pressure-distributing cap or the like.
  • the stud itself could be subdivided and/or it could consist of more than one elastomeric material, that is it could consist of sections of different elastomeric materials whose elastomeric characteristics are selected in accordance with specific requirements in order to obtain a specific characteristic line for the braking action. Also, it is clear that the braking means which has been disclosed herein can be used with closing devices whose basic construction is different from that which has been illustrated herein.
  • a closing device for doors comprising elongated housing means having a transverse end wall provided with an opening; slide means in said housing means'longitudinally slidable therein in a predetermined path between a rest position and a working position adjacent said transserve end wall; biasing means permanently urging said slide means to said rest position; connecting means operatively connecting said slide means with a structural element capable of performing movements between a closed and an open position, for effecting sliding movement of said slide means toward said working position in response to movement of said structural element from said closed position; hydraulic damping means for damping the movement of said slide means from said working to said rest position; and an elastomeric braking element extending through said opening into said housing means and comprising an elongated stud of elastomeric material having an end portion connected to said end wall and an other end 7 portion projecting towards said slide means for engagement with said slide means for braking the movement of the latter only during the terminal approach of said slide means to said working position.
  • said braking element further comprising a cup-shaped holding portion secured to said end wall and engaging and holding said end portion of said stud.
  • said end wall having an inner side facing the interior of said housing I means, an outer side facing the exterior of said housing other of said sides; and wherein said opening and said holding portion are provided with said cooperating screw threads and said holding portion comprises a section extending to and engageable at said outer side.

Landscapes

  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
US51768A 1969-07-10 1970-07-02 Door closer Expired - Lifetime US3701180A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1934912A DE1934912C3 (de) 1969-07-10 1969-07-10 Selbsttätiger Türschließer

Publications (1)

Publication Number Publication Date
US3701180A true US3701180A (en) 1972-10-31

Family

ID=5739360

Family Applications (1)

Application Number Title Priority Date Filing Date
US51768A Expired - Lifetime US3701180A (en) 1969-07-10 1970-07-02 Door closer

Country Status (4)

Country Link
US (1) US3701180A (enrdf_load_stackoverflow)
DE (1) DE1934912C3 (enrdf_load_stackoverflow)
FR (1) FR2056230A5 (enrdf_load_stackoverflow)
GB (1) GB1258239A (enrdf_load_stackoverflow)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4097956A (en) * 1976-04-02 1978-07-04 Ryobi, Ltd. Hydraulic door operator with overtravel restraint
US6260236B1 (en) 1998-10-30 2001-07-17 Jackson Corp. Door closer with hydraulic back checking
US6442795B1 (en) * 2001-01-16 2002-09-03 Girefa Enterprise Co., Ltd. Damper for a pivot door
US20030135953A1 (en) * 2002-01-22 2003-07-24 Kwangju Institute Of Science And Technology Magnetic type floor hinge
US20040034964A1 (en) * 2002-08-20 2004-02-26 Jorg Loggen Drive for a movable element
US20060021189A1 (en) * 2004-07-30 2006-02-02 Johnson Loring M Door closer
US20090093913A1 (en) * 2007-04-24 2009-04-09 Copeland Ii David James Door closer assembly
US8109038B2 (en) 2004-06-30 2012-02-07 Yale Security Inc. Door operator
US8415902B2 (en) 2010-04-16 2013-04-09 Yale Security Inc. Door closer with calibration mode
US8527101B2 (en) 2010-04-16 2013-09-03 Yale Security Inc. Door closer assembly
US8547046B2 (en) 2010-04-16 2013-10-01 Yale Security Inc. Door closer with self-powered control unit
US8564235B2 (en) 2010-04-16 2013-10-22 Yale Security Inc. Self-adjusting door closer
US8773237B2 (en) 2010-04-16 2014-07-08 Yale Security Inc. Door closer with teach mode
US8779713B2 (en) 2010-04-16 2014-07-15 Yale Security Inc. Door closer with dynamically adjustable latch region parameters
US20150128379A1 (en) * 2013-11-13 2015-05-14 Dorma Deutschland Gmbh Overhead door closer
US9163446B2 (en) 2010-03-17 2015-10-20 Yale Security Inc. Door control apparatus
US20150345202A1 (en) * 2013-03-04 2015-12-03 Ryobi Ltd. Door closer

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR890002513A (ko) * 1987-07-06 1989-04-10 알란 이. 에거스, 죠지 토레도 도어 체결기
DE9209276U1 (de) * 1992-07-10 1992-08-27 Dorma GmbH + Co. KG, 5828 Ennepetal Obentürschließer mit Gleitschienengestänge für den verdeckten Einbau in Türblätter oder Türrahmen
US5417013A (en) * 1992-07-10 1995-05-23 Dorma Gmbh + Co. Kg Overhead door closer with slide rail for concealed installation in door panels or door frames

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2219824A (en) * 1940-02-05 1940-10-29 Rudolph I Schonitzer Door opening and door checking device
US2715746A (en) * 1950-03-13 1955-08-23 Paul H Travis Door check structure
US2813293A (en) * 1954-05-17 1957-11-19 Civitelli Gennaro Door stop
US2909801A (en) * 1957-07-01 1959-10-27 Oscar C Rixson Company Door closer
US3017655A (en) * 1959-12-07 1962-01-23 Yale & Towne Mfg Co Drawer control
US3449788A (en) * 1966-06-13 1969-06-17 Kyoyasu Wake Hinge type door check
US3545030A (en) * 1967-11-03 1970-12-08 Dor O Matic G B Ltd Door closer devices

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2219824A (en) * 1940-02-05 1940-10-29 Rudolph I Schonitzer Door opening and door checking device
US2715746A (en) * 1950-03-13 1955-08-23 Paul H Travis Door check structure
US2813293A (en) * 1954-05-17 1957-11-19 Civitelli Gennaro Door stop
US2909801A (en) * 1957-07-01 1959-10-27 Oscar C Rixson Company Door closer
US3017655A (en) * 1959-12-07 1962-01-23 Yale & Towne Mfg Co Drawer control
US3449788A (en) * 1966-06-13 1969-06-17 Kyoyasu Wake Hinge type door check
US3545030A (en) * 1967-11-03 1970-12-08 Dor O Matic G B Ltd Door closer devices

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4097956A (en) * 1976-04-02 1978-07-04 Ryobi, Ltd. Hydraulic door operator with overtravel restraint
US6260236B1 (en) 1998-10-30 2001-07-17 Jackson Corp. Door closer with hydraulic back checking
US6442795B1 (en) * 2001-01-16 2002-09-03 Girefa Enterprise Co., Ltd. Damper for a pivot door
US20030135953A1 (en) * 2002-01-22 2003-07-24 Kwangju Institute Of Science And Technology Magnetic type floor hinge
US6823561B2 (en) * 2002-01-22 2004-11-30 Kwangju Institute Of Science And Technology Magnetic type floor hinge
US20040034964A1 (en) * 2002-08-20 2004-02-26 Jorg Loggen Drive for a movable element
US8109038B2 (en) 2004-06-30 2012-02-07 Yale Security Inc. Door operator
US8499495B2 (en) 2004-06-30 2013-08-06 Yale Security Inc. Door operator
US7421761B2 (en) * 2004-07-30 2008-09-09 Johnson Loring M Door closer
US20090000058A1 (en) * 2004-07-30 2009-01-01 Yale Security Inc. Door closer
US7921511B2 (en) * 2004-07-30 2011-04-12 Yale Security Inc. Door closer
US20070067950A1 (en) * 2004-07-30 2007-03-29 Johnson Loring M Door closer
US20060021189A1 (en) * 2004-07-30 2006-02-02 Johnson Loring M Door closer
US20090093913A1 (en) * 2007-04-24 2009-04-09 Copeland Ii David James Door closer assembly
US7971316B2 (en) 2007-04-24 2011-07-05 Yale Security Inc. Door closer assembly
US8600567B2 (en) 2007-04-24 2013-12-03 Yale Security Inc. Door closer assembly
US9399884B2 (en) 2007-04-24 2016-07-26 Yale Security Inc. Door closer assembly
US9163446B2 (en) 2010-03-17 2015-10-20 Yale Security Inc. Door control apparatus
US8415902B2 (en) 2010-04-16 2013-04-09 Yale Security Inc. Door closer with calibration mode
US8564235B2 (en) 2010-04-16 2013-10-22 Yale Security Inc. Self-adjusting door closer
US8773237B2 (en) 2010-04-16 2014-07-08 Yale Security Inc. Door closer with teach mode
US8779713B2 (en) 2010-04-16 2014-07-15 Yale Security Inc. Door closer with dynamically adjustable latch region parameters
US8547046B2 (en) 2010-04-16 2013-10-01 Yale Security Inc. Door closer with self-powered control unit
US8527101B2 (en) 2010-04-16 2013-09-03 Yale Security Inc. Door closer assembly
US9523230B2 (en) 2010-04-16 2016-12-20 Yale Security Inc. Door closer assembly
US20150345202A1 (en) * 2013-03-04 2015-12-03 Ryobi Ltd. Door closer
US9416578B2 (en) * 2013-03-04 2016-08-16 Ryobi Ltd. Door closer
US20150128379A1 (en) * 2013-11-13 2015-05-14 Dorma Deutschland Gmbh Overhead door closer

Also Published As

Publication number Publication date
FR2056230A5 (enrdf_load_stackoverflow) 1971-05-14
GB1258239A (enrdf_load_stackoverflow) 1971-12-22
DE1934912C3 (de) 1974-11-14
DE1934912B2 (enrdf_load_stackoverflow) 1974-04-11
DE1934912A1 (de) 1971-06-09

Similar Documents

Publication Publication Date Title
US3701180A (en) Door closer
CN101415899B (zh) 用于缓冲家具门的关闭冲击力的装置
AU2007226329B2 (en) Universal impact-hinder device
US20080295283A1 (en) Soft close door closure device
AU2015217669B2 (en) Bearing arrangement for a door
US8091971B2 (en) Soft close drawer assembly
CZ419399A3 (cs) Mechanismus ovládající zpožďování při brzděném dovírání
US3675270A (en) Closing device for doors and analogous structural elements
CA2966946C (en) A damping or return device for sliding door leaves or for drawers
JP2017505391A (ja) 嵩の低い油圧式ヒンジ
CA2966789C (en) A damping or return device for sliding door leaves
US3162889A (en) Door closer clip
US3044103A (en) Door closer
US3742553A (en) Door closer
KR101423933B1 (ko) 가구용 슬라이드 도어의 댐퍼 시스템
GB1316551A (en) Damping devices for doors
KR101442186B1 (ko) 도어 완충장치
US2637877A (en) Balanced door
US966926A (en) Door check and closer.
KR101534156B1 (ko) 완충용 도어 댐퍼
TW201202538A (en) Door closer
US3835501A (en) Actuators
KR20180109599A (ko) 도어 클로저
GB1392727A (en) Automatic door-closing device
KR20190026078A (ko) 도어 클로저