GB2401148A - Door Closer with Closing Force Adjustment - Google Patents

Door Closer with Closing Force Adjustment Download PDF

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Publication number
GB2401148A
GB2401148A GB0309866A GB0309866A GB2401148A GB 2401148 A GB2401148 A GB 2401148A GB 0309866 A GB0309866 A GB 0309866A GB 0309866 A GB0309866 A GB 0309866A GB 2401148 A GB2401148 A GB 2401148A
Authority
GB
United Kingdom
Prior art keywords
restricting device
friction
door closer
closing force
door
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.)
Withdrawn
Application number
GB0309866A
Other versions
GB0309866D0 (en
Inventor
Adrian Beach
John Parfitt
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.)
PARFITT, JOHN
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB0309866A priority Critical patent/GB2401148A/en
Publication of GB0309866D0 publication Critical patent/GB0309866D0/en
Publication of GB2401148A publication Critical patent/GB2401148A/en
Withdrawn legal-status Critical Current

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
    • E05F3/108—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 piston rod protruding from the closer housing; Telescoping closers
    • 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
    • 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

A door closer has compression spring 2 which may be placed within pistons 3 where a restricting device is placed within the force path of the spring 2 in order to control the closing force of the door closer. The restricting device may be in the form of hardened balls 11 which act on side walls of housing 1 in the form of friction. The hardened balls 11 may be acted on by a radial force from spring 10 which is adjusted by rotation of a tapered screw 9.

Description

2401 148 Developlerits in autol.atic door clusers
Background
Automatic door closers are devices connected between a door and France, serving to keep the door closed when not in use. They usually consist of one or more springs to produce a closing force and damping means to slow down the closing speed to minimize noise and the possibility of injury to users.
lo Although simpler systems using gravity weights and/or no damping exist, this invention relates to the aforesaid kind having one or more compression springs and fluid damping.
More specifically, this invention describes a concealed automatic door closer, where the only externally visible components consist of two plates flush with the edge of the door and frame s respectively, with connection between the two conporients by iriear.s of a link, chain or cable.
Such concealed automatic door closers are particularly popular in new constructions where the appearance and absence of external components are appreciated. However many of the features described in this invention are also capable of incorporation in more conventional externally mounted and concealed automatic door closers.
Introduction
I'he objective of this invention is to provide a design for an automatic door closer with a novel means of adjusting the door closing force profile, allowing a wide range of door closing Forces to be provided within one compact unit, and permitting the installer to very easily set the appropriate closing force during installation.
Description
According to the invention, for which we pray a patent may be granted, an automatic door closer is provided with one or more coiled compression springs to produce a door closing force, such force being capable of rea ly adjustment by means herein described.
In a preferred embodiment of tile invention and shown in exploded form in figure 1, an aut.onatic door closer comprises a housing (1) positively secured within the edge of a door (not shown).
ITousing (I) has two parallel borings, each being closed off at the right hand end. Pistons (3) and coiled compression springs (2) slide within the two aforementioned borings, compression SpTingS (2) being part captured within the hollow centres of pistons (3).
Link rod (7) slides within damping device (a), which is itself secured within housing (1) when assembled. Link rod (7) is connected at its right hand end to the stationary frame of the door (not shown). Pistons (3) and link rod (7) are bolted together at the loft hand end by means of connecting plate (4) and bolts (5) and (6).
The assembly of pistons (3), link rod (7) and connecting plate (4) slide as a unit within housing (1) When the door is pushed open, link rod (7), which is attached to the stationary door frame at its right hand end, is caused to travel in the direction of the anow, causing pistons (3) to compress coiled springs (2) constrained within the closed borings within housing (1). When the user releases the door, coiled compression springs (2) exert a force via pistons (3), connecting plate I) and link rod (7) tending to pull the door into the closed position. The door closing and latching speed is controlled by damping device (8) through which link rod (7) passes.
The sectional drawing figure 2 shows, one of the pistons (3) shding within its boring in housing (1). Details ofthe other piston are identical. Piston (3) contains an axial boring (12), the boring being threaded at the open end and having a reduced plain section at the blind end. Fitted within this boring is a tapered adjustment screw (9) which is capable of being rotated within boring ( 12) of piston (3) by means of, for example, a screwdriver or alien key, so as to move up or down boring (12).
Piston (3) also contains two radial, diametrically opposed borings as shown, each housing a spring (10) and hardened ball (I 1) as shown. The bottom of spring (10) bears upon the tapered portion oftapered adjustment screw (9), which when rotated into boring (12) compresses spring (10). In torn spring (10) applies a radial force upon ball (l 1), increasing the friction between the ball and the inner walls ofthe boring within housing (1) as tapered adjustment screw (9) moves further into boring (12).
In use, the assembled door closer '!nit initially has the two tapered adjustment screws (9) set fully out (minimum friction position) and is then fitted into the edge of the door, link rod (7) being coupled up to the adjacent door frame. The closing action of the door closer is assessed, and if the closure force is considered inadequate, the door closer is removed from the door and tapered adjustment screws (9) rotated out of their borings to reduce the friction between balls (1 1) and the walls of housing (1). The unit can then be refitted and its performance reassessed.

Claims (7)

LAMS
1 An automatic door closer containing one or more compression spnugs to provide a closing force and containing one or more restricting device(s) placed within the force path so as to limit the closing force to a desired level.
2 An automatic door closer as described in claim 1 whereby the closure force may be set during installation by adjusting the performance of the restricting device.
3 A restricting device as described in claim 1 which relies upon friction to control the closing force.
4 A restricting device as described in claim 3 whereby the friction may be generated by one or more spring loaded rolling balls as generally illustrated in figures I and 2.
A restricting device as described in claim 4 whereby the level of friction may be adjusted by compressing or relaxing the aforementioned springs as generally illustrated in figures 1 and2.
6 restricting device as described in claim 3 whereby the friction may be generated by one or more sprung sliding elements.
7 A restricting device as described in claim 6 whereby the friction may be adjusted by varying the pressure exerted between the aforementioned sprung slic-ling elements.
GB0309866A 2003-04-30 2003-04-30 Door Closer with Closing Force Adjustment Withdrawn GB2401148A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0309866A GB2401148A (en) 2003-04-30 2003-04-30 Door Closer with Closing Force Adjustment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0309866A GB2401148A (en) 2003-04-30 2003-04-30 Door Closer with Closing Force Adjustment

Publications (2)

Publication Number Publication Date
GB0309866D0 GB0309866D0 (en) 2003-06-04
GB2401148A true GB2401148A (en) 2004-11-03

Family

ID=9957324

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0309866A Withdrawn GB2401148A (en) 2003-04-30 2003-04-30 Door Closer with Closing Force Adjustment

Country Status (1)

Country Link
GB (1) GB2401148A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108561029A (en) * 2016-01-12 2018-09-21 乌鲁木齐九品芝麻信息科技有限公司 A kind of floor spring of three sections of speed changes
GB2573376A (en) * 2018-02-23 2019-11-06 Geze Gmbh Drive apparatus for a door leaf and a door arrangement equipped therewith

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1218457A (en) * 1967-10-25 1971-01-06 Hettich F Kg Hinges
GB2108576A (en) * 1981-09-15 1983-05-18 Brian John Beech Door closers
GB2158148A (en) * 1984-04-27 1985-11-06 Jebron Ltd Door closer
EP0178391A2 (en) * 1984-10-17 1986-04-23 Dictator-Technik Ruef & Co. Tubular door closer
US4590639A (en) * 1982-06-29 1986-05-27 Geze Gmbh Door closer
GB2180294A (en) * 1985-09-12 1987-03-25 Newman Tonks Eng Adjustable door closer
US4783882A (en) * 1986-01-13 1988-11-15 Emhart Industries, Inc. Door closer assembly
GB2216181A (en) * 1988-02-24 1989-10-04 Heath Samuel & Sons Plc Door closers
US5265306A (en) * 1993-01-15 1993-11-30 Yu King Sung Automatic door closing device
GB2358222A (en) * 1999-10-15 2001-07-18 Schlage Lock Co Power adjustment size indicator for a door closer

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1218457A (en) * 1967-10-25 1971-01-06 Hettich F Kg Hinges
GB2108576A (en) * 1981-09-15 1983-05-18 Brian John Beech Door closers
US4590639A (en) * 1982-06-29 1986-05-27 Geze Gmbh Door closer
GB2158148A (en) * 1984-04-27 1985-11-06 Jebron Ltd Door closer
EP0178391A2 (en) * 1984-10-17 1986-04-23 Dictator-Technik Ruef & Co. Tubular door closer
GB2180294A (en) * 1985-09-12 1987-03-25 Newman Tonks Eng Adjustable door closer
US4783882A (en) * 1986-01-13 1988-11-15 Emhart Industries, Inc. Door closer assembly
GB2216181A (en) * 1988-02-24 1989-10-04 Heath Samuel & Sons Plc Door closers
US5265306A (en) * 1993-01-15 1993-11-30 Yu King Sung Automatic door closing device
GB2358222A (en) * 1999-10-15 2001-07-18 Schlage Lock Co Power adjustment size indicator for a door closer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108561029A (en) * 2016-01-12 2018-09-21 乌鲁木齐九品芝麻信息科技有限公司 A kind of floor spring of three sections of speed changes
CN108561029B (en) * 2016-01-12 2019-07-30 广东恒力精密工业有限公司 A kind of floor spring of three sections of speed changes
GB2573376A (en) * 2018-02-23 2019-11-06 Geze Gmbh Drive apparatus for a door leaf and a door arrangement equipped therewith

Also Published As

Publication number Publication date
GB0309866D0 (en) 2003-06-04

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Legal Events

Date Code Title Description
COOA Change in applicant's name or ownership of the application

Owner name: PARFITT, JOHN

Free format text: FORMER APPLICANT(S): BEACH, ADRIAN ;PARFITT, JOHN

WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)