WO1997024502A1 - A safety device for door operating apparatus - Google Patents
A safety device for door operating apparatus Download PDFInfo
- Publication number
- WO1997024502A1 WO1997024502A1 PCT/SE1996/001758 SE9601758W WO9724502A1 WO 1997024502 A1 WO1997024502 A1 WO 1997024502A1 SE 9601758 W SE9601758 W SE 9601758W WO 9724502 A1 WO9724502 A1 WO 9724502A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tripping
- lever
- safety device
- breaker
- positions
- Prior art date
Links
- 235000007575 Calluna vulgaris Nutrition 0.000 claims 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
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
- E05F15/00—Power-operated mechanisms for wings
- E05F15/50—Power-operated mechanisms for wings using fluid-pressure actuators
- E05F15/53—Power-operated mechanisms for wings using fluid-pressure actuators for swinging wings
-
- 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
- E05F15/00—Power-operated mechanisms for wings
- E05F15/40—Safety devices, e.g. detection of obstructions or end positions
- E05F15/41—Detection by monitoring transmitted force or torque; Safety couplings with activation dependent upon torque or force, e.g. slip couplings
-
- 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
- This invention relates to door operating apparatus and, more particularly, to a safety device for door operating appara- tus .
- a safety device of the kind with which the invention is con ⁇ cerned can be used to stop a door actuator of the door oper ⁇ ating apparatus if the opening or closing movement of the door being operated is impeded by a force acting on the door and exceeding a certain given value, e.g. a value specified by authorities or in regulations.
- a primary object of the invention is to provide a safety device of the kind indicated which is double-acting in the sense explained above.
- the safety device is constructed as set forth in the independent claim.
- the dependent claims recite features of preferred embodiments of the safety device according to the invention.
- FIG. 1 is a diagrammatic side view of a door operating appar ⁇ atus incorporating a safety device according to the inven ⁇ tion, the apparatus being shown in a rest position, i.e., a position in which no load acts on the door actuator;
- Fig. 2 is a diagrammatic plan view of the safety device of Fig. 1;
- Figs 3 and 4 are enlarged fragmentary views of the safety device of Fig. 1 showing the safety device in two different states of the safety device, namely, in Fig. 1 during a nor ⁇ mal opening or closing movement and in Fig. 4 during an open ⁇ ing or closing movement in which the movement of the door being operated is impeded by an excessive force that causes the safety device to operate to trigger stopping of the door actuator.
- the illustrated preferred embodiment of the safety device according to the invention is incorporated in a door operat- ing apparatus which comprises, in addition to the safety device which is generally designated by 11, a door actuator in the shape of a double-acting pneumatic piston and cylinder assembly 12 with an associated control and air supply device, which is represented by a block 13 in Fig. 1.
- the cylinder of the piston and cylinder assembly 12 is pivotally connected to the safety device 11 and the piston thereof is connected to a pivotally movable door leaf 14 to be operated.
- the safety device 11 comprises an elongated base or support plate 15 having openings 16 for attachment screws (not shown) by which the plate can be attached in a suitable position on a wall or door frame, for example.
- Halfway between the ends of the base plate a pair of bearing lugs 17 are fixedly secured to the upper side (as viewed in the drawings) of the base plate.
- a transverse pivot pin or shaft 18 is journalled in the bearing lugs 17.
- a pair of parallel rocker arms 19 are secured to the pivot pin. These rocker arms extend from the pivot pin away from the base plate 15 and adjacent their outer ends have apertures 19A for receiving trunnions 12A of the pneumatic piston and cylinder assembly 12.
- One of the rocker arms 19 is welded to the pivot pin 18 while the other rocker arm is secured to the pivot pin by means of set screws 20 or other suitable fasteners .
- the inner or lower end 19B of the rocker arms 19 is perpen ⁇ dicular to a plane L containing the axis of the pivot pin 18 and the common axis of the apertures 19A and in the illus ⁇ trated centered position is parallel to the top side of the base plate 15 and spaced therefrom by a relatively small distance, e.g. 1-1.5 mm. Accordingly, the two rocker arms 19 can swing freely in opposite directions from the illustrated vertical centered position to a slightly inclined position in which one or the other of the corner portions 19C of the rocker arms engages the top side of the base plate 15 to limit the rocking movement.
- the angular range of movement of the rocker arms 19 may be, for example, 5° in either direc- tion from the illustrated centered position.
- each control lever 22 is provided with a recess 22A in the vicinity of the adjacent rocker arm 19.
- the gap S separating the transverse edge 22B and the lateral edge 19D of the rocker arm may be one or a few tenths of a millimetre; it is sufficient and suitable for the gap to be just about wide enough to permit unimpeded pivotal movement of the rocker arm 19 until the neighbouring corner portion 19C thereof engages the base plate 15.
- each control lever 22 is provided with a laterally projecting arm 22C which coacts with an actuating arm 23A of one of a pair of switches 23 which form a breaker device connected to the control and air supply device 12.
- each control lever 22 is provided with a loading spring 24 which applies a load to the control arm which can be individually adjusted by turning a nut 25.
- a stop 26 Associated with each control arm is also a stop 26 which limits the pivotal movement of the control arm 22 away from the base plate to a certain angle so that excessive loading of the actuating arm 23A of the associated switch may be avoided.
- the rocker arms 19 take a posi- tion within the angular range of pivotal movement which is defined by the base plate 15 and the corner portions 19C of the lower rocker arm end.
- the door is assumed initially to be closed and the rocker arms are assumed to be in the centered position shown in Fig. 1.
- the left end of the cylinder of the piston and cylinder assembly 12 is pres ⁇ surised.
- the left control lever 22 in a corresponding manner will be pivotally moved upwardly and act on the associated switch 23 so that that switch causes stopping of the piston and cylinder assembly 12 and the door leaf 14.
- control levers 22 are constructed as elbow levers having a long lever arm which operates by its outer end the breaker constituted by the switch 23, only a small angular movement of the control levers 22, and thereby of the rocker arms 19, is required for triggering a stopping of the door actuator, that is, of the pneumatic piston and cylinder assembly 12.
- one of the corner portions 19C of each rocker arm 19 together with the adjacent transverse edge 22B of the associated control lever 22 constitutes a freewheel or unidirectional coupling which enables the rocker arm 19 to move in one direction without acting on the associ ⁇ ated control lever but causes the rocker arm to carry the control lever along when moving in the opposite direction.
Landscapes
- Power-Operated Mechanisms For Wings (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96944179A EP0870096A1 (en) | 1995-12-27 | 1996-12-27 | A safety device for door operating apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9504671A SE507757C2 (en) | 1995-12-27 | 1995-12-27 | Security device for a door actuator |
SE9504671-0 | 1995-12-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997024502A1 true WO1997024502A1 (en) | 1997-07-10 |
Family
ID=20400747
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE1996/001758 WO1997024502A1 (en) | 1995-12-27 | 1996-12-27 | A safety device for door operating apparatus |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0870096A1 (en) |
SE (1) | SE507757C2 (en) |
WO (1) | WO1997024502A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1432058A (en) * | 1919-11-07 | 1922-10-17 | John E W Fogal | Door-operating apparatus |
US4346533A (en) * | 1980-04-26 | 1982-08-31 | Gebr. Bode & Co. Gmbh | Drive for a vehicle door |
SE440113B (en) * | 1983-01-18 | 1985-07-15 | Hovma Byggprodukter Ab | Safety device on a gate |
SE456684B (en) * | 1985-05-06 | 1988-10-24 | Sven Erik Oeverstroem | Door panel manoeuvring device |
-
1995
- 1995-12-27 SE SE9504671A patent/SE507757C2/en not_active IP Right Cessation
-
1996
- 1996-12-27 EP EP96944179A patent/EP0870096A1/en not_active Withdrawn
- 1996-12-27 WO PCT/SE1996/001758 patent/WO1997024502A1/en not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1432058A (en) * | 1919-11-07 | 1922-10-17 | John E W Fogal | Door-operating apparatus |
US4346533A (en) * | 1980-04-26 | 1982-08-31 | Gebr. Bode & Co. Gmbh | Drive for a vehicle door |
SE440113B (en) * | 1983-01-18 | 1985-07-15 | Hovma Byggprodukter Ab | Safety device on a gate |
SE456684B (en) * | 1985-05-06 | 1988-10-24 | Sven Erik Oeverstroem | Door panel manoeuvring device |
Also Published As
Publication number | Publication date |
---|---|
EP0870096A1 (en) | 1998-10-14 |
SE9504671D0 (en) | 1995-12-27 |
SE507757C2 (en) | 1998-07-13 |
SE9504671L (en) | 1997-06-28 |
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