US2701383A - Door closer - Google Patents

Door closer Download PDF

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Publication number
US2701383A
US2701383A US157664A US15766450A US2701383A US 2701383 A US2701383 A US 2701383A US 157664 A US157664 A US 157664A US 15766450 A US15766450 A US 15766450A US 2701383 A US2701383 A US 2701383A
Authority
US
United States
Prior art keywords
piston
door
cylinder
check
throttling
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 - Lifetime
Application number
US157664A
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English (en)
Inventor
Billeter Ernst
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.)
Individual
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
Application granted granted Critical
Publication of US2701383A publication Critical patent/US2701383A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E05F3/06—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes in which a torsion spring rotates a member around an axis perpendicular to the axis of the piston
    • 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 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

Definitions

  • the door closer comprises a hydraulic check operating to additionally retard the door closing movement within a certain angle of aperture of the door.
  • Fig. 6 shows a section on the line VI-VI of Fig. 1, and
  • Fig. 7 a vertical longitudinal section through the check.
  • Numeral 1 designates a check cylinder in which a check piston 2 is movable.
  • a crank axle 3 projects through the wall of the check cylinder, being disposed at right angles to the cylinder axis and carrying in cylinder 1 an arm 4 provided with a crank pin which is engaged by a piston rod 5.
  • the latter as known in the art, is pivoted to the piston 2 which, therefore, is moved in cylinder 1 on rotating the axle 3.
  • a check valve comprising aball 7 movable in a duct 6 and adapted for co-operationwith a seat 8 and a stop 9.
  • a longitudinal groove 10 of rectangular cross-section (Fig. 6).
  • a closing throttle 15 is provided in the return duct 11, and an additional throttle 16 in the return duct 12.
  • an override valve (Figs. 1-5) comprising a longitudinal bore 17 which opens into the two cylinder chambers 13 and 14, and a valve plate 18 which opposes the flow of checking liquid through the said bore.
  • the said plate 18 is loaded by a spring 21a which is adjustable by means of a screw plug 21.
  • a longitudinal groove 19 is provided in the cylinder inside wall adjacent duct-end 12b. and another longitudinal groove. 20 on the side opposite the ends of the ducts 11 and 12. The groove 20 is somewhat longer than the check piston 2.
  • the check cylinder 1 is rigidly secured to the door.
  • the cylinder 1 carries a spring chamber 26 in which is disposed a closing spring 27 which at one end is secured to the chamber 26 and at the other end to the hub 29 of a spur gear 290 fixed on a sleeve 28 which is co-axial with the crank axle 3 and freely rotatable in chamber 26, the spur gear 29a engaging a pawl 30 which is carried by the arm 22.
  • the operation of the closer otherwise is as follows. Let it be assumed that the door is in an opening position in which the check components occupy the position shown in Fig. 1.
  • the checking liquid is oil for example.
  • the extent of delay of the closing movement is defined by that throttling element which has the more pronounced throttling action, i. e. by the throttling element 16. It has to be noted that, according to the extent of such throttling, the door closing movement within the said certain door opening angle which corresponds to the positions of the piston 2 in Figs. 2 and 3, may be delayed as desired, i. e. down to standstill, in which case the throttling element 16 is entirely closed.
  • the piston 2 is positioned as shown in Fig. 4, i. e.
  • the said groove 20 is provided in cylinder 1.
  • the piston 2 When the piston 2 has attained the position shown in Fig. 5, the oil may escape from chamber 14 through an additional passage past piston 2, namely through the longitudinal groove 20, so that the door closing movement is checked to a lesser extent.
  • the pull exerted on the door by a person closing the door causes the piston 2 to move faster, whereby the oil pressure in cylinder chamber 14 is raised.
  • the increased oil pressure is propagated through the bore 17 and, overcoming the action of spring 21a, causes valve 18 to open, whereby a direct passage of relatively large cross-section is produced between the cylinder chambers 14 and 13.
  • the door closing movement thus is checked substantially less by the throttle elements 15 and 16 respectively.
  • the range within which the piston will be additionally checked through the throttling element 16 may correspond to any desired range of door opening angles.
  • the arrangement suitably may be such that the piston movement is additionally checked during that time in which the displacement rate is a maximum andl, therefore, the check piston 2 is checked most effective y.
  • a door closer comprising a hydraulic checking device including a cylinder and a piston therein, throttling means in said device for controlling the closing movement of the door, and a second throttling means in said device for producing a throttling action limited to a certain range of the door closing movement, the throttling action of said second throttling means being superposed to the throttling action produced by said first mentioned throttling means to provide for an unhindered passage through the door opening by an increased door braking action during said range of closing movement.
  • a door check comprising a hydraulic checking device including a cylinder and a piston therein, a pair of throttle passages in communication with said cylinder to by-pass fluid around said piston, said passages overlap- 301,883 3 4 ping with the outlet of one passage intermediate the inlet 3.

Landscapes

  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
US157664A 1949-04-28 1950-04-24 Door closer Expired - Lifetime US2701383A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH2701383X 1949-04-28

Publications (1)

Publication Number Publication Date
US2701383A true US2701383A (en) 1955-02-08

Family

ID=4571164

Family Applications (1)

Application Number Title Priority Date Filing Date
US157664A Expired - Lifetime US2701383A (en) 1949-04-28 1950-04-24 Door closer

Country Status (3)

Country Link
US (1) US2701383A (de)
DE (1) DE835722C (de)
FR (1) FR1016698A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3574886A (en) * 1969-07-10 1971-04-13 Norris Industries Position control hydraulic snubber
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
US5386614A (en) * 1993-01-08 1995-02-07 Corbin Russwin, Inc. Door closer
US20140352108A1 (en) * 2013-05-30 2014-12-04 Gang Gwo Industrial Co., Ltd. Hydraulic hinge for a glass door
EP2808475B1 (de) 2013-05-28 2016-08-24 Gang Gwo Industrial Co., Ltd Hydraulisches Scharnier für eine Glastür

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1848371A (en) * 1931-02-09 1932-03-08 American Hardware Corp Doorcheck
US2116185A (en) * 1935-08-07 1938-05-03 Benjamin S Bernhard Door closer and check
US2586135A (en) * 1949-10-15 1952-02-19 Ben H Woodruff Door closer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1848371A (en) * 1931-02-09 1932-03-08 American Hardware Corp Doorcheck
US2116185A (en) * 1935-08-07 1938-05-03 Benjamin S Bernhard Door closer and check
US2586135A (en) * 1949-10-15 1952-02-19 Ben H Woodruff Door closer

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3574886A (en) * 1969-07-10 1971-04-13 Norris Industries Position control hydraulic snubber
US5259090A (en) * 1991-07-31 1993-11-09 Emhart Inc Fluid door closer with means to permit entrapped gases to move
US5386614A (en) * 1993-01-08 1995-02-07 Corbin Russwin, Inc. Door closer
US5343593A (en) * 1993-02-24 1994-09-06 Emhart Inc. Door closer
EP2808475B1 (de) 2013-05-28 2016-08-24 Gang Gwo Industrial Co., Ltd Hydraulisches Scharnier für eine Glastür
US20140352108A1 (en) * 2013-05-30 2014-12-04 Gang Gwo Industrial Co., Ltd. Hydraulic hinge for a glass door
US9074399B2 (en) * 2013-05-30 2015-07-07 Gang Gwo Industrial Co., Ltd. Hydraulic hinge for a glass door

Also Published As

Publication number Publication date
DE835722C (de) 1952-04-03
FR1016698A (fr) 1952-11-19

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