IT970207B - AUTOMATIC DOOR CLOSER - Google Patents

AUTOMATIC DOOR CLOSER

Info

Publication number
IT970207B
IT970207B IT3128272A IT3128272A IT970207B IT 970207 B IT970207 B IT 970207B IT 3128272 A IT3128272 A IT 3128272A IT 3128272 A IT3128272 A IT 3128272A IT 970207 B IT970207 B IT 970207B
Authority
IT
Italy
Prior art keywords
door
cam plate
spring
door closer
dec
Prior art date
Application number
IT3128272A
Other languages
Italian (it)
Inventor
H Tillmann
Original Assignee
Dorma Gmbh & Co 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 Dorma Gmbh & Co Kg filed Critical Dorma Gmbh & Co Kg
Application granted granted Critical
Publication of IT970207B publication Critical patent/IT970207B/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
    • E05F3/104—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

Landscapes

  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)

Abstract

1392489 Spring door closers DORMABAUBESCHLAG GmbH & CO KG 8 Dec 1972 [14 Dec 1971] 56781/72 Heading E2M A spring door closer comprises a shaft 12 to be coupled with a door and interacting by way of a cam plate 18 with clamping means and with a spring 35, that part 20 of the cam plate which is operative between closed and normal open positions of the door having a constant rise so that a constant torque must be applied to open the door in this range, and that part 22 of the cam plate which is operative in the region of the normal open position having a steeper rise, so that a torque at least twice the said constant torque is needed in this range. The clamping means comprises piston (32), Fig I (not shown), non-return valve (36) and adjustable throttling means 43. Specification 1259030 is referred to.
IT3128272A 1971-12-14 1972-11-03 AUTOMATIC DOOR CLOSER IT970207B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712161892 DE2161892A1 (en) 1971-12-14 1971-12-14 AUTOMATIC DOOR CLOSER

Publications (1)

Publication Number Publication Date
IT970207B true IT970207B (en) 1974-04-10

Family

ID=5827876

Family Applications (1)

Application Number Title Priority Date Filing Date
IT3128272A IT970207B (en) 1971-12-14 1972-11-03 AUTOMATIC DOOR CLOSER

Country Status (4)

Country Link
DE (1) DE2161892A1 (en)
FR (1) FR2165398A5 (en)
GB (1) GB1392489A (en)
IT (1) IT970207B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2029529B (en) * 1978-09-08 1982-06-16 Marconi Co Ltd Waveguide switch movement damping
KR890002513A (en) * 1987-07-06 1989-04-10 알란 이. 에거스, 죠지 토레도 Door fastener
DE9308568U1 (en) * 1993-06-09 1994-01-13 Dorma Gmbh + Co. Kg, 58256 Ennepetal Built-in door closer with slide rail linkage for concealed installation in door leaves or door frames

Also Published As

Publication number Publication date
FR2165398A5 (en) 1973-08-03
DE2161892A1 (en) 1973-06-20
GB1392489A (en) 1975-04-30

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