GB914660A - Automatic door closer - Google Patents
Automatic door closerInfo
- Publication number
- GB914660A GB914660A GB4039/61A GB403961A GB914660A GB 914660 A GB914660 A GB 914660A GB 4039/61 A GB4039/61 A GB 4039/61A GB 403961 A GB403961 A GB 403961A GB 914660 A GB914660 A GB 914660A
- Authority
- GB
- United Kingdom
- Prior art keywords
- link
- door
- spring
- linkage
- casing
- 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
Links
- 239000012530 fluid Substances 0.000 abstract 1
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
- E05F3/106—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 crank-arm 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
- E05F3/225—Additional arrangements for closers, e.g. for holding the wing in opened or other position mounted at the bottom of wings, e.g. details related to seals, covers, connections to the wings, embedding in the floor
-
- 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
Landscapes
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
Abstract
914,660. Door closers. MANKEL, R. Feb. 2, 1961 [March 10, 1960], No. 4039/61. Class 65 (1). A door closer comprises a casing 10 containing a coil tension spring 27 and a pivotally-mounted hydraulic piston and cylinder brake 31, 32, the closing shaft 14 which is rotatably mounted in the casing having a crank 19 connected by a linkage system 20, 22 to a rocking lever 24 engaged by both the spring and the brake. In the region of the crank 19 the closing shaft 14 is reduced in diameter so that only a portion 42 remains, and the link 22, which is pivoted to the link 20 at 21, comprises two parallel webs each having a bent lug 26 adapted to engage the link 20 to act as a stop. When the door (not shown) is closed the links are approximately aligned (Fig. 5) and they remain so until the door has opened about 60 degrees when the link 20 abuts a surface of the shaft portion 42 (Fig. 6), subsequent opening of the door then causing the linkage to bend about its pivot 21 until the 180 degrees open position is reached (Fig. 8) when the link 22 also abuts the shaft portion 42 and arrests the opening movement. In this position the pin 23 by which the spring 27 is connected to the rocking lever 24 is so disposed relative to the linkage 20, 22 and the closing shaft that the closing torque is reduced to zero. When the door is released from this position it begins to close under the action of the spring 27 and during the closing movement the link 22 rotates in an anti-clockwise direction relative to its pivotal connection 23 with the rocking lever 24. As soon as the 60 degrees position is reached (Fig. 6) the link 20 commences to rotate in a clockwise direction relative to the crank 19, and the friction at the pivots 19, 23 is arranged to be sufficient to cause the linkage, in spite of the tension caused by the spring 27, to pass slightly over-centre until the stops 26 on the link 22 abut the link 20. By this means the linkage forms a rigid strut so that if the door should be forced manually towards the closed position after the brake has come into action there is little risk of the linkage collapsing. An abutment surface 45 is formed on the casing to limit such collapse if, through unfavourable circumstances, it should occur. A bore 39 is formed in the wall of the brake cylinder 32 so that braking action occurs only shortly before the piston 31 has finished its inward stroke, the braking action being adjustable by means of a valve 35 which may contain a heat-sensitive insert to adapt the area of the valve passage to the temperature-responsive viscosity of the hydraulic fluid. A pressure relief valve 34 with an adjustable spring and a non-return valve 38 are also provided. A spring-loaded pin 41 (Fig. 3, not shown), projecting from the top of the casing near the shaft 14 may be provided to engage a recess in the lever arm carried by the extension 15 of the shaft to hold the door in a predetermined open position. Alternatively (Fig. 4, not shown), notches may be formed on the edge of the link 20 which cooperate with a spring-loaded pin inside the casing. Specification 778,850 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED32832A DE1215023B (en) | 1960-03-10 | 1960-03-10 | Automatic door closer |
Publications (1)
Publication Number | Publication Date |
---|---|
GB914660A true GB914660A (en) | 1963-01-02 |
Family
ID=7041477
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4039/61A Expired GB914660A (en) | 1960-03-10 | 1961-02-02 | Automatic door closer |
Country Status (5)
Country | Link |
---|---|
US (1) | US3108315A (en) |
CH (1) | CH383820A (en) |
DE (1) | DE1215023B (en) |
GB (1) | GB914660A (en) |
NL (1) | NL260349A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8225458B1 (en) | 2001-07-13 | 2012-07-24 | Hoffberg Steven M | Intelligent door restraint |
KR102231885B1 (en) * | 2019-09-26 | 2021-03-26 | 이덕신 | Door closer by crank |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR462600A (en) * | 1913-09-17 | 1914-01-30 | Robert Adams | Improvements to door valets |
US1101232A (en) * | 1914-03-27 | 1914-06-23 | Robert Adams | Door spring and check. |
US2223045A (en) * | 1938-09-15 | 1940-11-26 | Oscar C Rixson Company | Door closure and check mechanism |
DE931696C (en) * | 1952-04-06 | 1955-08-16 | Gunther Sasse | Door closer with a closer axis on which a tension member under spring tension and a hydraulic braking device act |
US2752627A (en) * | 1953-02-26 | 1956-07-03 | George W Houlsby Jr | Pivotal door check device |
US2962749A (en) * | 1953-10-28 | 1960-12-06 | Joseph Stachowicz | Door closing device |
CH324608A (en) * | 1953-10-28 | 1957-10-15 | Schumacher & Bielefeld | Door closer |
US2971212A (en) * | 1955-10-18 | 1961-02-14 | Ver Baubeschlag Gretsch Co | Door closing apparatus |
FR1161651A (en) * | 1956-11-20 | 1958-09-03 | Thuillier Ets | Improvements to automatic door closers |
-
0
- NL NL260349D patent/NL260349A/xx unknown
-
1960
- 1960-03-10 DE DED32832A patent/DE1215023B/en active Pending
-
1961
- 1961-01-25 CH CH85361A patent/CH383820A/en unknown
- 1961-02-02 GB GB4039/61A patent/GB914660A/en not_active Expired
- 1961-02-09 US US88151A patent/US3108315A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CH383820A (en) | 1964-10-31 |
DE1215023B (en) | 1966-04-21 |
NL260349A (en) | |
US3108315A (en) | 1963-10-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2920338A (en) | Door closer | |
US2492049A (en) | Automatic hold-down means for swing joint mounted arms | |
GB1270355A (en) | Automatic door closers | |
GB936320A (en) | Concealed overhead door closer | |
SE7807812L (en) | AUTOMATIC DOOR CLOSER | |
ES2012962A6 (en) | Over-center self-closing hinge for cabinet doors | |
US1966956A (en) | Door control apparatus | |
GB914660A (en) | Automatic door closer | |
US1178688A (en) | Door-check. | |
US2834039A (en) | Door closing device | |
US3058146A (en) | Pneumatic door check | |
US2468410A (en) | Door closer and check | |
GB1220007A (en) | Automatic door closers | |
US3161909A (en) | Door operating apparatus | |
US2315106A (en) | Closer for gates | |
US2669745A (en) | Door-closing device | |
DE852323C (en) | Non-return flap with oil brake | |
IT970206B (en) | AUTOMATIC DOOR CLOSER | |
US1840558A (en) | Door closer and check | |
US1934554A (en) | Door closer and check | |
GB2241738A (en) | A door closer for a door | |
US1478376A (en) | Door closer and check | |
GB903664A (en) | Door closer assembly | |
GB1078957A (en) | Hydraulically operated gate drive | |
GB925095A (en) | Improvements in or relating to door closing and checking devices |