EP0409445B1 - Ferme-porte - Google Patents

Ferme-porte Download PDF

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Publication number
EP0409445B1
EP0409445B1 EP19900307271 EP90307271A EP0409445B1 EP 0409445 B1 EP0409445 B1 EP 0409445B1 EP 19900307271 EP19900307271 EP 19900307271 EP 90307271 A EP90307271 A EP 90307271A EP 0409445 B1 EP0409445 B1 EP 0409445B1
Authority
EP
European Patent Office
Prior art keywords
door
hydraulic oil
piston
oil passage
adjusting
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
EP19900307271
Other languages
German (de)
English (en)
Other versions
EP0409445A1 (fr
Inventor
Hiroyuki Akiyama
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.)
Ryobi Ltd
Original Assignee
Ryobi Ltd
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 Ryobi Ltd filed Critical Ryobi Ltd
Publication of EP0409445A1 publication Critical patent/EP0409445A1/fr
Application granted granted Critical
Publication of EP0409445B1 publication Critical patent/EP0409445B1/fr
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
    • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/12—Special devices controlling the circulation of the liquid, e.g. valve arrangement
    • 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
    • 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
    • E05F3/223—Hydraulic power-locks, e.g. with electrically operated hydraulic valves
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • 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—Application of doors, windows, wings or fittings thereof for buildings or parts thereof characterised by the type of wing
    • E05Y2900/132—Doors

Definitions

  • the present invention relates to a door closer utilized as a hinge member for a door for smoothly opening and closing a door.
  • a door closer is provided for a door for smoothly opening and closing the door, and the door closer has a structure for automatically closing the door after opening the door, stopping the door at a predetermined opening position and capable of maintaining the door stopping position.
  • the door closer for these purposes, is provided with a main shaft which is rotatable in accordance with the rotation of the door.
  • the rotation of the main shaft is converted into a linear movement for linearly sliding a piston accommodated in a cylinder assembly of a door closer.
  • a return spring which is also accommodated in the cylinder assembly is urged by the sliding movement of the piston to thereby automatically close the door when the door is released.
  • the door closer of the structure described above is further provided with a stop mechanism for maintaining the stopped state of the door at a predetermined position after the door has been opened.
  • the stop mechanism includes a cam plate which is secured to the main shaft, and the cam plate is provided with a cutout at a predetermined position. An engaging member is engaged with the cut out when the door is opened to the predetermined position to stop the door at that position.
  • a cam mechanism could not be used in a situation where no stop mechanism were required. Instead, one would need to employ a different door closer mechanism, which would be somewhat inconvenient.
  • the aforementioned cam mechanism is not provided with a function for changing the angle for stopping the door.
  • An object of the present invention is to eliminate substantially the defects or drawbacks encountered with the known mechanisms described above and to provide a door closer provided with a door opening position stop function and means for releasing the door stopping function and optionally changing the door stopping angle positions thereby to enable the smooth opening or closing of the door.
  • the door closer of the present invention when the door is opened to an optional opening angle, the piston is displaced and the return spring is compressed by the displacement of the piston. At this moment, the hydraulic oil in the first pressure chamber flows into the second pressure chamber through the check valve to allow the door to be freely opened.
  • the door can be stopped with widely opened angle, for example, more than 80° by fully closing the adjusting valve of the first hydraulic oil passage and, otherwise, the door closer can attain the delayed function by loosely closing the adjusting valve.
  • the door stop function is released by the stop releasing angle adjusting mechanism in the door opening angle region of about 80° to 100°, for example, and the delayed action is ended.
  • the door stop releasing angle is predetermined by the control of the opening degree of the stop valve which is adjusted by the adjusting member such as an adjusting bolt. In a case where the door now in a stopped state is closed, the stop valve is released by forcibly pushing the door.
  • the pressure in the second pressure chamber is increased to thereby open the stop valve and the hydraulic oil in the second pressure chamber is flown into the first pressure chamber through the fourth hydraulic oil passage, the hydraulic oil communication passage and the second hydraulic oil passage, whereby the door is closed and when the door is continuously pushed to the door stop releasing angle position, the door is automatically closed.
  • the door opening angle region of about 80° to 100°, for example, i.e. first speed region
  • the second pressure chamber is communicated with the first pressure chamber through the first and second hydraulic oil passages and the door closing speed can be adjusted by the adjusting valve disposed in the second hydraulic oil passage.
  • the second hydraulic oil passage is closed and the hydraulic oil in the second pressure chamber is flown into the first pressure chamber through the fourth hydraulic oil passage and the third hydraulic oil passage.
  • the door closing speed can be adjusted by the adjusting valve disposed in the third hydraulic oil passage. According to the manner described above, the object of the present invention can be sufficiently achieved.
  • a door closer H of the present invention comprises a cylindrical case 1 which is composed of a main shaft accommodation portion 1a in which a main shaft 2, positioned to a leftside portion as viewed, is accommodated, a spring accommodation portion 1b in which a return spring 13 is accommodated at the central portion thereof and a piston accommodation portion 1c in which a piston 1c, positioned in a rightside portion as viewed, is accommodated.
  • the free end, rightside end as viewed, of the piston accommodation portion 1c is closed by an end plug 14.
  • the main shaft accommodation portion 1a is closed by a cover member 3 and the main shaft 2 is secured therein to be rotatable by a bearing 4 mounted to the central portion of the cover member 3 and a bearing 5 mounted to the lower surface of the piston accommodation portion 1c.
  • a leaf-shaped cam plate 6 accommodated in a central gap in an operating plate 7 in the main shaft accommodation portion 1a. Rollers 8 and 9 acting as cam followers are disposed at proper positions opposing to the cam plate 6 in the operating plate 7.
  • the righthand end, as viewed, of the operating plate 7 is connected to the lefthand end of a connecting rod 10, which has the righthand end connected to the piston 11 through a connection pin 12.
  • the return spring 13 In the spring accommodation portion 1b is accommodated the return spring 13 in a position between the leftside inner wall of the spring accommodation portion 1b and the piston 11 so that the return force is urged by the leftward displacement of the piston 11.
  • a stop releasing angle adjusting mechanism 15 shown in Fig. 2 for adjusting an angle for stopping the door.
  • the stop releasing angle adjusting mechanism 15 is provided with a valve seat 16 to be slidable in a cylindrical cavity 41 formed in the piston 11 and the valve seat 16 is urged rightwardly as viewed by a large coil spring 18 having a larger diameter and a small coil spring 19 having a smaller diameter.
  • a ball-shaped stop valve 17 is accommodated in the valve seat 16.
  • the cylindrical cavity 41 has an inlet opening at which is disposed a cylindrical valve seat 21 having an opening 0 at the central portion thereof.
  • the front end of an adjusting bolt 20 screw-engaged with the end plug 14 extends into the cavity 41 through the opening 0 of the valve seat 21.
  • the adjusting bolt 20 includes a screw portion 20a which is to be engaged with a screw portion formed to the end plug 14.
  • a seal ring 20b is provided for the engaging portion between the adjusting bolt 20 and the end plug 14.
  • the one end, i.e. righthand end, of the adjusting bolt 20 projects outward beyond the end plug 14 and a handle member 20c is secured to the projecting end of the adjusting bolt 20, whereby the adjusting bolt 20 can be moved in the bilateral directions as viewed by rotating the handle member 20c.
  • a seal ring 22 is provided for the front portion, righthand portion as viewed, of the piston 11.
  • the longitudinally central portion of the outer periphery of the piston 11 is formed as a small diameter portion 23 so as to provide a small gap between the outer peripheral surface of the piston 11 and the inner wall of the piston accommodation portion 1c, the gap being formed as a hydraulic oil communication passage 50 through which hydraulic oil flows.
  • the through hole 40 shown in Fig. 1, is formed in the piston 11 to establish the communication between the hydraulic oil communication passage 50 and the inner central portion of the piston 11, and the through hole 40 communicates with the cylindrical cavity 41 formed in the piston 11.
  • a ball-shaped check valve 24 is disposed in a cavity 42 to a front portion of a valve cylinder 25 near the outer periphery of the piston 11 and a first passage 26 extending in the axial direction of the piston 11 communicates with the cavity 42.
  • the first passage 26 communicates with a second pressure chamber B and a first pressure chamber A in which the return spring 13 is accommodated is formed on the opposite side of the second pressure chamber B.
  • a second passage 27 is formed at the righthand end, as viewed in Fig. 1, so as to extend in the radial direction of the case 1.
  • the second passage 27 communicates with a third passage 28 extending in the thickened wall of the case 1 and along the longitudinal direction thereof and the third passage 28 also communicates with a fourth passage 29 extending in the radial direction of the case 1.
  • These second, third and fourth passages 27, 28 and 29 constitute, in combination, a first hydraulic oil passage P1.
  • a delayed action (DA) adjusting valve 30 is disposed between the third passage 28 and the fourth passage 29.
  • the delayed action adjusting valve 30 serves to adjust the flow of the hydraulic oil between the first pressure chamber A and the second pressure chamber B by adjusting the opening degree of the fourth passage 29 in accordance with the rotation of the adjusting valve 30.
  • a fifth passage 31 is formed on the left side, as viewed in Fig. 4, of the fourth passage 29 so as to extend in the same direction of the fourth passage 29 and the fifth passage 31 communicates with a sixth passage 32 extending in the longitudinal direction in the thickened wall of the case 1.
  • the sixth passage 32 communicates with a seventh passage 33 extending in the radial direction of the case 1.
  • fifth, sixth and seventh passages 31, 32 and 33 constitute a second hydraulic oil passage P2.
  • a first speed adjusting valve 34 is disposed at an intermediate portion between the sixth passage 32 and the seventh passage 33.
  • the door opening speed (first speed) at a time when the door is widely opened can be adjusted by the adjustment of the first speed adjusting valve 34.
  • An eighth passage 35 is formed in the lower case portion constituting the lower inner wall of the piston accommodation portion 1c so as to extend in the radial direction of the case 1 and the eighth passage 35 communicates with a ninth passage 36 extending in the longitudinal direction in the thickened wall of the case 1.
  • the ninth passage 36 communicates with a tenth passage 37 extending in the radial direction of the case 1.
  • These eighth, ninth and tenth passages 35, 36 and 37 constitute, in combination, a third hydraulic oil passage P3.
  • a second speed adjusting valve 38 is disposed between the ninth passage 36 and the tenth passage 37.
  • the opening degree of the tenth passage 37 can be adjusted by the adjustment of the second speed adjusting valve 38, whereby the door opening speed (second speed) at a time when the door is almost being closed can be adjusted.
  • the door to which the door closer according to the present invention is fixed is opened by the maximum opening angles of 120°.
  • the door opening angle region between about 20° and 80°, in which the door is closed at a speed higher than that in the second speed region, is referred to as the first speed region.
  • the door opening angle region between about 80° to 100° is the stop release angle adjusting region in which the angle at which the door stop is released is adjusted,.
  • the door opening angle region between the door stop releasing angle and about 120° is a DA region in which the delayed action can be performed.
  • Fig. 5 shows merely one example of the angular regions to be controlled by the door closer according to the present invention and other changes in angles may be of course adopted.
  • the first hydraulic oil passage P1 communicates the second pressure chamber B and the hydraulic oil communication passage 50 and the second hydraulic oil passage P2 communicates the hydraulic oil communication passage 50 and the first pressure chamber A, so that the hydraulic oil in the first pressure chamber A is flown into the second pressure chamber B and, hence, the piston 11 is moved rightwardly as viewed by the return force of the return spring 13.
  • the door closing speed is controlled to thereby attain the delayed function.
  • the stop valve 17 abuts against the inner end of the adjusting bolt 20, as shown in Fig. 7, and the adjusting bolt 20 is pushed leftwardly, as shown in Fig. 7, to thereby open the fourth hydraulic oil passage P4 and, accordingly, the door is thereafter automatically closed by the repulsive force of the return spring 13.
  • the door releasing angle can be changed in the door stop releasing angle adjusting region of 80° to 100° by changing the inner end position of the adjusting bolt 20 by rotating the same.
  • the door opening angle region from the stop releasing angle to the angle of about 20° is referred to as the first speed region, in which the door is closed with a relatively fast speed and the door closing speed can be controlled by the adjustment of the first speed adjusting valve 34.
  • the second hydraulic oil passage P2 When the door is closed at the door closing angle below about 20°, the second hydraulic oil passage P2 is closed as shown in Fig. 8, and the third hydraulic oil passage P3 communicates the first pressure chamber A with the hydraulic oil communication passage 50. Accordingly, the hydraulic oil in the second pressure chamber B is flown into the first pressure chamber A through the fourth hydraulic oil passage P4, the hydraulic oil communication passage 50 and the third hydraulic oil passage P3 to thereby slowly close the door with the second door closing speed under the control of the second speed adjusting valve 38.
  • the door can be provided with the stopping function or stop releasing function by the adjustment of the DA adjusting valve 30 and, moreover, the stop releasing angle can be optionally be set within the predetermined range by the adjustment of the adjusting bolt 20 and, hence, the door closing speed can be adjusted in relation to the door opening angle region.

Claims (4)

  1. Un ferme-porte (H), destiné à effectuer les opérations d'ouverture et de fermeture de la porte, possédant un boîtier externe (1) qui abrite un piston (11) et un ressort de rappel (13) et dans lequel la rotation d'une porte est transformée en un mouvement linéaire du piston (11) et le mouvement de ce piston (11) agit sur le ressort de rappel (13) ce qui provoque la fermeture de la porte en raison de la force répulsive du ressort de rappel (13), et dans lequel une soupape de non-retour (24) est montée dans le piston (11) de façon à permettre à l'huile hydraulique de s'écouler d'une première chambre de pression (A) à une deuxième chambre de pression (B), les deux chambres étant prévues sur les côtés opposés du logement du piston, ainsi qu'à empêcher le flux inverse de l'huile hydraulique ; un premier passage d'huile hydraulique (P₁) est formé pour mettre en communication la deuxième chambre de pression avec le passage d'huile hydraulique (50) créé sur la périphérie externe du piston lorsque le piston se trouve à une position prédéterminée, afin d'établir une communication de l'huile hydraulique, et un deuxième passage d'huile (P₂) est formé pour mettre en communication le passage d'huile hydraulique (50) avec la première chambre de pression (A) lorsque le piston se trouve à une position prédéterminée, ledit deuxième passage d'huile hydraulique (P₂) mettant en communication le passage d'huile (50) avec la première chambre de pression (A) dans une zone de l'angle d'ouverture de la porte dans laquelle la porte grande ouverte est fermée selon une vitesse de fermeture prédéterminée ; lesdits premier et deuxième passages d'huile hydraulique (P₁) et (P₂) étant munis de soupapes de réglage destinées respectivement à contrôler le débit de l'huile hydraulique, caractérisée par le fait qu'un troisième passage d'huile hydraulique (P₃) est créé pour mettre en communication le passage d'huile hydraulique (50) avec la première chambre de pression (A) lorsque le piston se trouve à une position prédéterminée, ledit troisième passage d'huile hydraulique (P₃) étant muni d'une soupape de réglage destinée à contrôler le débit de l'huile hydraulique, ledit troisième passage d'huile hydraulique (P₃) mettant en communication le passage d'huile (50) avec la première chambre de pression (A) dans une zone de l'angle d'ouverture de la porte dans laquelle la porte est complètement fermée selon une vitesse de fermeture plus faible que la vitesse de fermeture de porte prédéterminée susmentionnée, et caractérisée par le fait qu'un mécanisme de réglage de l'angle de désaccouplement de butée (15) est monté dans le piston de façon à régler la position de l'angle d'arrêt de la porte, ledit mécanisme de réglage de l'angle de désaccouplement de butée (15) comprenant un quatrième passage d'huile (P₄) mettant en communication la deuxième chambre de pression (B) avec le passage d'huile (50) ; une soupape d'arrêt (17) montée dans le quatrième passage d'huile (P₄) et adaptée de façon à arrêter le débit d'huile hydraulique jusqu'à ce que la porte soit fermée à une position angulaire prédéterminée, moment auquel la porte grande ouverte est fermée, et un élément de réglage (20) destiné à régler une position dans laquelle la soupape d'arrêt (17) est ouverte.
  2. Un ferme-porte, selon les stipulations de la revendication 1, dans lequel ledit élément de réglage solidaire du mécanisme de réglage de l'angle de désaccouplement de butée (15) comporte un boulon de réglage (20) engagé par vis avec un obturateur d'extrémité (14) fermant l'une des extrémités ouvertes du boîtier externe (1) du ferme-porte, ledit boulon de réglage (20) étant muni d'une section interne se prolongeant vers la soupape d'arrêt (17) du piston (11) afin de régler une position dans laquelle la soupape d'arrêt (17) est ouverte selon l'ajustement de la position de la section interne dans la position de réglage grâce à la rotation de celle-ci.
  3. Un ferme-porte, selon les stipulations de la revendication 2, dans lequel ladite soupape d'arrêt (17) est en fait une soupape sphérique qui est obligée d'agir vers le boulon de réglage (20) et montée dans un évidement (41) du piston (11), l'évidement (41) étant mis en communication avec le passage d'huile (50) créé sur la périphérie du piston (11) par l'intermédiaire d'un passage d'huile radial (40) formé dans le piston (11).
  4. Un ferme-porte, selon les stipulations de la revendication 3, dans lequel lorsque la porte est poussée avec force après avoir été grande ouverte, ledit mécanisme de réglage de l'angle de désaccouplement de butée (15) provoque l'ouverture du quatrième passage d'huile (P₄), permettant ainsi à la porte de se fermer.
EP19900307271 1989-07-21 1990-07-03 Ferme-porte Expired - Lifetime EP0409445B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP18958989A JP2854614B2 (ja) 1989-07-21 1989-07-21 ドアクローザ
JP189589/89 1989-07-21

Publications (2)

Publication Number Publication Date
EP0409445A1 EP0409445A1 (fr) 1991-01-23
EP0409445B1 true EP0409445B1 (fr) 1993-05-12

Family

ID=16243854

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900307271 Expired - Lifetime EP0409445B1 (fr) 1989-07-21 1990-07-03 Ferme-porte

Country Status (3)

Country Link
EP (1) EP0409445B1 (fr)
JP (1) JP2854614B2 (fr)
DE (1) DE69001591T2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105392952A (zh) * 2013-07-18 2016-03-09 尤利乌斯·布卢姆有限公司 用于可运动的家具部件的缓冲器
CN110630130A (zh) * 2018-06-25 2019-12-31 盖慈有限公司 用于门扇或窗扇的驱动装置

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0545624B1 (fr) * 1991-11-29 1997-01-22 Ryobi Ltd. Ferme-porte de sol
JPH06146704A (ja) * 1992-11-06 1994-05-27 Nippon Doaachietsuku Seizo Kk ドアクローザ
US5386614A (en) * 1993-01-08 1995-02-07 Corbin Russwin, Inc. Door closer
EP0663503A1 (fr) * 1994-01-14 1995-07-19 Bo Sang Seo Ferme-porte
DE4417227C1 (de) * 1994-05-17 1995-12-14 Gartner & Co J Türschließvorrichtung zur Anbringung im Türschwellenbereich
DE19506355C2 (de) * 1995-02-23 1997-01-16 Dorma Gmbh & Co Kg Selbsttätiger Türschließer
DE19922916A1 (de) * 1999-01-18 2000-07-20 Geze Gmbh Türschließer
KR20020072902A (ko) * 2001-03-13 2002-09-19 주식회사 제일금속 백 체크 밸브를 갖는 도어 클로져의 랙
US6976289B1 (en) * 2003-07-25 2005-12-20 Valentin Luca Door closer with door arresting mechanism
KR100808627B1 (ko) * 2007-07-03 2008-02-29 (주)라이코 플로어 힌지
DE102010017574B4 (de) * 2010-06-25 2019-11-28 Dormakaba Deutschland Gmbh Türschließer
DE102011006877B4 (de) * 2011-04-06 2015-06-11 Geze Gmbh Türschließer
CN102220823A (zh) * 2011-05-24 2011-10-19 肇庆市志盛门控五金有限公司 一种高承重地弹簧
TW201326527A (zh) * 2011-12-21 2013-07-01 Gang Gwo Ind Co Ltd 油壓鉸鍊
CN103658582B (zh) * 2012-09-20 2016-04-06 湖州徳冠门控有限公司 一种抽芯式地弹簧的壳体结构及其加工方法
GB2525444A (en) * 2014-04-25 2015-10-28 Bestko Prec Ltd Damped Hinge
CN105370127B (zh) * 2015-08-07 2017-02-01 佛山市奥达金属制品有限公司 具有开门延时的地弹簧
TWI629405B (zh) * 2017-07-18 2018-07-11 朕豪工業股份有限公司 關門器
DE102018202812A1 (de) * 2018-02-23 2019-08-29 Geze Gmbh Antriebsvorrichtung für Türflügel und damit ausgestattete Türanordnung
GB2577541B (en) * 2018-09-28 2023-06-14 Assa Abloy Ltd Adjustable door-closer
CN112554694A (zh) * 2020-11-05 2021-03-26 陈云 一种合页的缓冲机构

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Publication number Priority date Publication date Assignee Title
US1965805A (en) * 1931-12-24 1934-07-10 David E Riggins Doorcheck
GB672432A (en) * 1949-04-28 1952-05-21 Ernst Billeter Improvements in or relating to door and gate operating-appliances
DE8704569U1 (fr) * 1987-03-27 1987-07-16 Gretsch-Unitas Gmbh Baubeschlaege, 7257 Ditzingen, De

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105392952A (zh) * 2013-07-18 2016-03-09 尤利乌斯·布卢姆有限公司 用于可运动的家具部件的缓冲器
CN110630130A (zh) * 2018-06-25 2019-12-31 盖慈有限公司 用于门扇或窗扇的驱动装置
CN110630130B (zh) * 2018-06-25 2021-06-08 盖慈有限公司 用于门扇或窗扇的驱动装置

Also Published As

Publication number Publication date
EP0409445A1 (fr) 1991-01-23
DE69001591T2 (de) 1993-12-16
DE69001591D1 (en) 1993-06-17
JPH0355376A (ja) 1991-03-11
JP2854614B2 (ja) 1999-02-03

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