BUILT-IN DOOR CHECK - PLATANIA DOMENICO

Title:

BUILT-IN DOOR CHECK

Document Type and Number:

WIPO Patent Application WO/1999/063191

Kind Code:

A1

Abstract:

The purpose of my invention is to make more convenient the automatic opening and closing of doors. It is an automatic cylinder-shaped gadget (9) whose purpose is to close door; it functions hydraulically thanks to its springs (8). It is to be fitted into the door and remains invisible. To activate the door-check it is sufficient to remove the safety-catch positioned on the external side of the plate. It is equipped with a click regulation used for closing the door. It has no external regulator for hydraulic oil, because the adjustment takes place automatically inside the piston, which functions on the basic of a definitive metering. It is very resistant.

Inventors:

PLATANIA DOMENICO (IT)

Application Number:

PCT/IT1999/000086

Publication Date:

December 09, 1999

Filing Date:

April 12, 1999

Export Citation:

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Assignee:

PLATANIA DOMENICO (IT)

International Classes:

E05F3/10; (IPC1-7): E05F3/10

Domestic Patent References:

WO1996005397A1

1996-02-22

Foreign References:

GB1497220A

1978-01-05

Other References:

See also references of EP 1032744A1

Download PDF:

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Description:

BUILT-IN DOOR CHECK TECHHICAI. FIELD My invention consist of visual disappearance of the gadget which, once it is inserted inside the door, leaves the external aspect unchanged : Thanks. to ita cylindrical form and the fact that is easy to fit in, it cai be fitted in. aluminium, ivon and wooden doors.

The idraulic piston can work following two sistems: 1)Doublepistonsystem(FIG.4); 2)Singlepistonsystemwithinternalsphericalvalve(FIG.5J BACKGROUND ART Thepre-exstig techinique of ole door-checks consisted of an external arm which pushed the door in order to shut it, The arm ivas scissor-shaped.

As a result, ito bid-fashioned famEtcbonswaBedompleted different from that , of my invention, besides, it had a very inelegant appearance. DISCLOSURE OF INVENTION The purpose of the built-in door check is to close a door automatically when it has bem left open by means of the forward and bachward sliding of Hie piston ; in the internal starter shaft; by so doing, it opens and b blochs the oil passage in order to lubrificate theisistem. (iFIG 4) -thé fastening of the door is activated by a spring, which in turn is regu ".:lated.bythepiston:("FIG-.2')'.'.'.'.''.':.;-''":''.';.'.. ;./.' the piston blochs the oil influx, letting only the necessary amount in order for the door to close slowly.

On fastening, the click, which denotes the definitive fastening of the door, is obtained by ividening a part of the cylinder which, given that i it is. wider than the diameter, lets the piston slide without any resi- stance..'.;.''''''.''"..''.'.'.'.'./":'/;'''..;.'., ; The starter shaft consist of. 180° arc-shaped. arm, a return spring and a : FIG. 1 All three conponents are inserted in a ci- linder. A plate with. side holes at the far ends so that, it can be fixed anto the door and a central tunnel. (FIG. 1 Shapped one, is attached to ono of the ends of the cilinder. ( The closing click can be fixed or adjustable, the latter being possible in two ways:

1) by treading the starter shaft, which screaving on to one of the ends of the arc-shanped arm leads to the lenthening or shortening of the starter shaft In this way it carries the piston along wrkth it; the piston is thrueeshifted to the deired position and bringo about the more or &ess strog click. !, 2) by tightening the screw positioned on the plate. _. BRIERIDESCRIPTION OF DRAWINGS FIG. l)-Illustrates alirthe-Illustrates alirthe details or componente of the door-check. FIG.2)-Illustratesacross-sectionofthecylindershovingthema- ximum diameter of the click and poitiwhere the pistonslideins '..''.-insidetheshortestdiameter.':'''-.'".-'.'.''"'''...''. .'.':.".'"'''-''' FIG. 3)-Illustrates theconnecting starter-Illustrates theconnecting starter shaft of the componentes in eludingthearm,theclickregulationbolt.

FIG.. 4).'-Illustrates the starter. shaft and the piston and thëirifunction. inside the.-cilin FIG.5)-Illustratesthedualfunctionofthepiston; <FIG.6)-Illustratestheclick-regulatesfixingplate on the door fra .',..''.-me."''''.''.'..-...';''./.;''.:;'"'-/'"'./'-/"'.''' "''''. FIG. 7)-J'llustrates the definitive positioning-J'llustrates the definitive positioning of the door-check.

BEST MODEFORCAKRYMGOUTTHEINVENTION MY INVention named"BUILT-IN DOOR-CHECK", canbe used for closing door ofallkindsandmodels INDUSTRIAL APPLICABILITY In the industrial field, the built-in door-check can be used in banks, shops, offices, dwelling and in any context in which it is necessary to do close a door automatically without making use of one's hands.

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