FI52491C - Time-delayed door closer. - Google Patents

Time-delayed door closer.

Info

Publication number
FI52491C
FI52491C FI733663A FI366373A FI52491C FI 52491 C FI52491 C FI 52491C FI 733663 A FI733663 A FI 733663A FI 366373 A FI366373 A FI 366373A FI 52491 C FI52491 C FI 52491C
Authority
FI
Finland
Prior art keywords
fluid
door
piston
constriction
spring
Prior art date
Application number
FI733663A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI52491B (en
Inventor
Bo Gustaf Widen
Nils Kaj Gunnar Rosenqvist
Original Assignee
Gkn Stenman 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 Gkn Stenman Ab filed Critical Gkn Stenman Ab
Publication of FI52491B publication Critical patent/FI52491B/fi
Application granted granted Critical
Publication of FI52491C publication Critical patent/FI52491C/en

Links

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
    • E05F3/102—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 rack-and-pinion 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
    • E05F3/04—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
    • 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
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/20—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore
    • 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
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/20—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore
    • E05Y2201/252—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore characterised by type of friction
    • E05Y2201/254—Fluid or viscous friction
    • 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
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/26—Form, shape
    • 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

Abstract

1450427 Spring door closers with fluid damping G K N-STENMAN AB 12 Dec 1973 [21 Dec 1972] 57685/73 Heading E2M [Also in Division F2] A spring door closer, of the type in which door shaft 4 provided with a pinion 3 drives a piston 6 within a fluid filled cylinder 5 against a closer spring 9 and a fluid channel 11 links both sides of the piston, is provided with means located in the channel which constricts fluid flow during an initial section of the door closing movement but which widens this constriction during the final portion of the door opening movement. As shown an adjustable valve spindle 13 has a conical end portion 13a which engages in a seat 14a in a slidable sleeve 14 biassed toward the spindle by a spring 16. When the door is opened the piston moves to the left from the door closed position shown in Fig. 1 expelling fluid firstly via channels 11c, lid then, as the piston covers lid, through 11c alone. In this final stage the fluid forces sleeve 14 to the right to widen the constriction between 13a and 14a (Fig. 4). For the first portion of the closing movement i.e. before the piston uncovers channel 11d fluid is drawn into the cylinder through channel 11c forcing the sleeve 14 to the left to narrow this constriction. The slow movement of fluid through this narrowed constriction delays the closing of the door until channel lid is uncovered and provides an alternative passage for the fluid. Final damping of the door occurs as the piston covers exit passage 11a and fluid must flow through a passage 11b regulated by screw 12. A plate 24 resting against a washer 23 provides a safety valve to relieve pressure should the door be closed too quickly, though this may be replaced by a ball valve (Figs. 5-8 not shown). Fig. 9 shows a modification of the constriction means in which the spring 16 acts on a check valve 25 which seats into the sleeve 14 and has a slot 27 for the restricted passage of fluid in its closed position. This check valve provides overload protection during the opening of the door, enabling a larger fluid flow to pass.
FI733663A 1972-12-21 1973-11-28 Time-delayed door closer. FI52491C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7216789A SE377593B (en) 1972-12-21 1972-12-21

Publications (2)

Publication Number Publication Date
FI52491B FI52491B (en) 1977-05-31
FI52491C true FI52491C (en) 1977-09-12

Family

ID=20302759

Family Applications (1)

Application Number Title Priority Date Filing Date
FI733663A FI52491C (en) 1972-12-21 1973-11-28 Time-delayed door closer.

Country Status (6)

Country Link
DE (1) DE2363988A1 (en)
DK (1) DK137934B (en)
FI (1) FI52491C (en)
GB (1) GB1450427A (en)
NO (1) NO137609C (en)
SE (1) SE377593B (en)

Families Citing this family (10)

* 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
DE3203390C2 (en) * 1982-02-02 1986-12-11 BKS Sicherheitstechnik GmbH, 5040 Brühl Pinion door closer
GB2156950B (en) * 1984-04-04 1988-01-13 Newman Tonks Eng Flow control valve and door closer incorporating such a valve
US4847946A (en) * 1988-03-24 1989-07-18 Sam Kyong Hardware Co., Ltd. Hydraulic door closer
GB2244759A (en) * 1990-05-17 1991-12-11 Jebron Ltd Door closing device
US5259090A (en) * 1991-07-31 1993-11-09 Emhart Inc Fluid door closer with means to permit entrapped gases to move
US5343593A (en) * 1993-02-24 1994-09-06 Emhart Inc. Door closer
EP3292259A1 (en) * 2015-05-07 2018-03-14 Conlan, Kenneth A sanitizer apparatus
GB2577542B (en) * 2018-09-28 2021-11-03 Assa Abloy Ltd Door-closer
IT202100010829A1 (en) * 2021-04-29 2022-10-29 In & Tec Srl UNIT FOR FLOW CONTROL OF A WORKING FLUID, IN PARTICULAR FOR A HINGE DEVICE

Also Published As

Publication number Publication date
NO137609B (en) 1977-12-12
DK137934C (en) 1978-12-27
FI52491B (en) 1977-05-31
DE2363988A1 (en) 1974-06-27
SE377593B (en) 1975-07-14
GB1450427A (en) 1976-09-22
DK137934B (en) 1978-06-05
NO137609C (en) 1978-03-21

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