EP0172136A1 - Bordure à interrupteur pour la protection de personnes et d'objets - Google Patents

Bordure à interrupteur pour la protection de personnes et d'objets Download PDF

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Publication number
EP0172136A1
EP0172136A1 EP85810339A EP85810339A EP0172136A1 EP 0172136 A1 EP0172136 A1 EP 0172136A1 EP 85810339 A EP85810339 A EP 85810339A EP 85810339 A EP85810339 A EP 85810339A EP 0172136 A1 EP0172136 A1 EP 0172136A1
Authority
EP
European Patent Office
Prior art keywords
bolts
rail
safety edge
edge according
track
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.)
Granted
Application number
EP85810339A
Other languages
German (de)
English (en)
Other versions
EP0172136B1 (fr
Inventor
Jakob Gilgen
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.)
GILGEN AG
Original Assignee
GILGEN AG
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 GILGEN AG filed Critical GILGEN AG
Priority to AT85810339T priority Critical patent/ATE34010T1/de
Publication of EP0172136A1 publication Critical patent/EP0172136A1/fr
Application granted granted Critical
Publication of EP0172136B1 publication Critical patent/EP0172136B1/fr
Expired 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
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/40—Safety devices, e.g. detection of obstructions or end positions
    • E05F15/42—Detection using safety edges
    • E05F15/44—Detection using safety edges responsive to changes in electrical conductivity
    • 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
    • E05F15/42—Detection using safety edges
    • E05F15/44—Detection using safety edges responsive to changes in electrical conductivity
    • E05F2015/447—Detection using safety edges responsive to changes in electrical conductivity using switches in serial arrangement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/14—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for operation by a part of the human body other than the hand, e.g. by foot
    • H01H3/141—Cushion or mat switches
    • H01H2003/146—Cushion or mat switches being normally closed

Definitions

  • the invention relates to a safety edge according to the preamble of claim 1.
  • a safety edge is described in German Patent No. 2,719,438, which is part of a protective device on a closing edge that can be moved by a drive.
  • Two pairs of electrodes are arranged within a rubber profile.
  • the two strip-shaped electrodes of each pair of electrodes extend over the entire length of the switching strip and are arranged isolated from each other at a distance. If an external force acts on the rubber profile at any point, it is pressed together, with the strip-shaped electrodes lying opposite one another touching.
  • the short circuit that occurs between the electrodes is determined by means of a monitoring circuit and the drive that moves the closing edge is switched off.
  • One end of each pair of electrodes is connected to the monitoring circuit and at the other ends a resistor is connected, which allows the operational readiness to be monitored or a short circuit to be determined.
  • This known embodiment places very high demands on the cleanliness or corrosion resistance of the electrodes. If one of the electrodes is damaged and interrupted, the entire pair of electrodes must be replaced.
  • the monitoring circuit is also complicated because it has to distinguish between quiescent current, short-circuit current and no current.
  • the safety edge according to the invention is characterized by the features stated in the characterizing part of patent claim 1.
  • the embodiment of the switching strip according to the invention comprises a rail 1, preferably made of an aluminum profile, the cross section of which can be seen in FIG are held at a distance, and an elastic protective cover 4 which surrounds the contact devices 2 and their longitudinal edges, as seen from the F ig. 3 can be seen, are positively connected to the narrow longitudinal sides of the rail 1.
  • Each of the contact devices 2 comprises two electrically conductive bolts 6, 6 'made of a metal, two electrically insulating holders 7 and an elastic element 8, preferably a helical spring.
  • the hal ter 7 each have a central bore 9 through which one of the bolts 6 and 6 'extends and a cylindrical extension 10, see also FIGS. 2 and 6.
  • the holders 7 are rigid with the bolts 6 and 6 assigned to them 'connected so that the end regions of the bolts 6 protrude beyond the shoulders 10 by a defined length.
  • the ends of the coil spring 8 are placed on each of the approaches 10 and firmly connected to it. This connection is made by a press fit, gluing or by attaching a thread to the neck onto which thread the coil spring 8 is screwed.
  • each contact device 2 comprises two bolts 6 and 6 ', respectively, when a plurality of contact devices 2 are arranged one behind the other, the bolts 6' arranged at the two ends have means at their outer ends for connecting a conductor 11 and 12, respectively 1 are indicated by dash-dotted lines.
  • the means mentioned comprise a thread cut onto the outer end of the bolts 6 'and nuts 13 screwed onto this.
  • the conductors 11 and 12 can also be soldered directly to the outer ends of the bolts 6'.
  • the bolts 6 and 6 ' can, for example, be provided with an external thread over their entire length and the central bore 9 of the holder 7 with an internal thread, so that the holder 7 can be screwed onto the bolt 6, 6'.
  • the pretension of the coil spring 8 can be set precisely, whereupon the brackets 7 are fixed with the aid of a lock nut with respect to the associated bolt.
  • the series arrangement of the contact devices 2 is kept at a distance from the rail 1 by the resilient members 3, for example by U-shaped wire clips 17.
  • This holder is designed such that the individual bolts 6 and 6 'move in the direction of the rail and can pivot about at least one, preferably two, spatial axes perpendicular to the longitudinal axis of the bolts.
  • the free ends 18 of the legs of the wire bracket 17 are fastened to the rail 1 by means of blocks 19 which are clamped to the rail 1.
  • the web 20 of the wire bracket 17, which can only be seen in FIG. 3, extends through a slot-shaped opening 21 in a holding member 22, the cross section of which is shown in FIG. 4.
  • connection of the wire bracket 17 via the holding member 22 with the slot-shaped opening 21 to the bolt 6 or 6 'held by the holding member 21 allows the bolt to move by an external force towards the rail 1, relatively freely around one to the longitudinal axis of the Rail 1 and parallel to its main plane, ie the support surface 23 of the rail 1, and an axis running perpendicular to the longitudinal axis of the rail 1 and perpendicular to the said main plane.
  • the slot-shaped opening 21 is arranged in an extension 24 of the holding member 22, the extension 24 also being used to limit the movement in the direction of the rail 1.
  • the part of the holding member 22 opposite the shoulder 24 is advantageously forked, so that the holding member 22 can be placed comfortably on the associated bolt 6.
  • 6 partially shows two bolts 6 with the holder 7 placed thereon and the helical spring 8 carried by the cylindrical projections 10 of the holder 7 on a larger scale.
  • the longitudinal axes of the bolts 6 are not arranged in a straight in wesentichen line, but include an obtuse angle of about 150 °, which by pivoting of a bolt 6 to 30 0 or both bolts 6 at each 15 ° about the one or the other axis mentioned above was effected.
  • the coil springs are also preloaded when no external force acts on the arrangement of the contact devices 2 one behind the other. This state is shown in FIGS. 1 and 2, with a small distance of 0.05 to 0.3 mm between the individual turns of the coil spring 8. This small distance is not apparent from FIGS. 1 and 2.
  • the helical spring 8 fulfills two tasks, on the one hand it presses the adjacent ends of the bolts 6 against one another and on the other hand it endeavors to align the contact devices 2 arranged one behind the other along a substantially straight line. If it is necessary for a special application, the rail 1 can also have a slight curvature, wherein then align the contact devices approximately along a line parallel to the rail.
  • the pivoted bolts 6 are pivoted back again by the return force of the prestressed coil spring 8, so that the longitudinal axes of the bolts 6 are again aligned along the essentially straight line. Since the ends of the bolts 6 then touch again, the current path is closed again.
  • the two outermost contact devices 2 each comprise one of the bolts 6 and one of the bolts 6 ′, and that the contact devices 2 arranged in between each comprise two of the bolts 6, one half of the bolts 6 in each case is assigned to the next contact device.
  • All bolts 6 are preferably the same long. To obtain a desired length of the safety edge for a specific application, one or more bolts can be made shorter.
  • FIG. 5 shows an embodiment of a holder 7 'which has the central bore 9 for receiving the bolt 6, which is only partially shown, and the cylindrical extension 10 for receiving the coil spring 8.
  • the holder 7 ' has an extension 25 in which the slot-shaped opening 21' for receiving the web 20 of the wire bracket 17 'is located. If holders 7 'according to FIG. 5 are used, the holding members 22 can be dispensed with. In their place, only spacer tubes 26, not shown, can be used, see FIG. 2.
  • the wire brackets 17 'shown in FIG. 2 each have a bending point 27.
  • the bending point 27 gives the wire bracket 17 'a kinked spring characteristic. If the contact device 2 in question is moved so far towards the rail 1 so that the bending point 27 rests against it, the spring force becomes substantially greater from this moment on, which results in a stop effect for limiting the movement path of the contact device 2 towards the rail 1.
  • Each of the blocks 19 for fastening the leg ends 30 of the wire bracket 17 ' has a cutout 28 at two adjacent corners, through which a section 29 extends between two bending points of the leg ends.
  • the ends 30 of the legs are clamped between the associated block 19 and an inwardly projecting rib 31 of the profile of the rail 1.
  • Each block is pressed by a grub screw 32, one end of which rests against the bottom part 33 of the rail, based on FIGS. 2 and 3.
  • wire clips 17 or 17 'could also be reversed, i.e. the leg ends could be fixedly connected to the holding members or the holders and the web of the wire brackets could be movably arranged in a slot-shaped opening in a longitudinal rib of the profile of the rail 1.
  • the holding members or the holder can be connected to the rail by means of helical springs or rods (not shown) made of rubber-elastic material.
  • the control strip described above is intended in particular for mounting on doors, gates and lifting devices, the end faces or edges of which move towards or against a fixed part when they close.
  • the task of the safety edge is to interrupt the monitoring circuit 11, 12, 14, 16 (FIG. 1) when a person or an object is in the path of movement of the door or gate during the closing process.
  • the safety edge can be used to protect people and / or objects where a part that is movable by a drive moves against a fixed part, e.g. for lifting platforms and protective devices for punching machines.
  • the robust construction of the safety edge results in a long service life.
  • the prestressed helical springs 8 result in a relatively large contact pressure between the adjacent, preferably cambered ends of the bolts 6, so that there are practically no contact problems. Because the ends of the bolts 6 shift slightly in the transverse direction to one another when subjected to external force, the contact points are self-cleaning.
EP85810339A 1984-08-06 1985-07-23 Bordure à interrupteur pour la protection de personnes et d'objets Expired EP0172136B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85810339T ATE34010T1 (de) 1984-08-06 1985-07-23 Schaltleiste zum schutz von personen und gegenstaenden.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH378184 1984-08-06
CH3781/84 1984-08-06

Publications (2)

Publication Number Publication Date
EP0172136A1 true EP0172136A1 (fr) 1986-02-19
EP0172136B1 EP0172136B1 (fr) 1988-05-04

Family

ID=4263343

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85810339A Expired EP0172136B1 (fr) 1984-08-06 1985-07-23 Bordure à interrupteur pour la protection de personnes et d'objets

Country Status (3)

Country Link
EP (1) EP0172136B1 (fr)
AT (1) ATE34010T1 (fr)
DE (1) DE3562503D1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0234523A2 (fr) * 1986-02-28 1987-09-02 Werner Haake Dispositif de sécurité pour arête de vantail
DE9417518U1 (de) * 1994-10-31 1994-12-15 Baehr Richard Stromunterbrecher
DE29606974U1 (de) * 1996-04-18 1996-10-02 Wampfler Gmbh Gummimantel für eine Schließkantensicherung
WO1996041062A1 (fr) * 1995-06-07 1996-12-19 Miller Edge, Inc. Bord de detection a hauteur reglable pour porte
DE29605719U1 (de) * 1996-03-28 1997-07-31 Wampfler Ag Gummimantel für eine Schließkantensicherung
DE19606745A1 (de) * 1996-02-23 1997-08-28 Wampfler Ag Schließkantensicherung
DE19647721A1 (de) * 1996-11-19 1998-05-20 Wampfler Ag Schließkantensicherheitsleiste
WO2004113656A1 (fr) * 2003-06-17 2004-12-29 Haake Andre Baguette de securite d'un dispositif de protection des bords d'impact ou de fermeture
EP1591609A1 (fr) * 2004-04-29 2005-11-02 André Haake Bordure à interrupteur pour sécurité d'un bord de fermeture

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2135922A5 (fr) * 1971-04-24 1972-12-22 Bosch
DE2714280A1 (de) * 1976-04-02 1977-10-06 Midland Ross Corp Beruehrungssensitive steuereinrichtung fuer fahrzeugtueren
DE2917797A1 (de) * 1979-05-03 1980-11-13 Bode & Co Geb Einklemmsicherung fuer selbsttaetig oeffnende und schliessende tueren
EP0103726B1 (fr) * 1982-09-13 1986-10-15 Inventio Ag Bordure de sécurité

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2135922A5 (fr) * 1971-04-24 1972-12-22 Bosch
DE2714280A1 (de) * 1976-04-02 1977-10-06 Midland Ross Corp Beruehrungssensitive steuereinrichtung fuer fahrzeugtueren
DE2917797A1 (de) * 1979-05-03 1980-11-13 Bode & Co Geb Einklemmsicherung fuer selbsttaetig oeffnende und schliessende tueren
EP0103726B1 (fr) * 1982-09-13 1986-10-15 Inventio Ag Bordure de sécurité

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0234523A2 (fr) * 1986-02-28 1987-09-02 Werner Haake Dispositif de sécurité pour arête de vantail
EP0234523A3 (en) * 1986-02-28 1987-10-28 Werner Haake Closure-edge security
DE9417518U1 (de) * 1994-10-31 1994-12-15 Baehr Richard Stromunterbrecher
WO1996041062A1 (fr) * 1995-06-07 1996-12-19 Miller Edge, Inc. Bord de detection a hauteur reglable pour porte
US5921026A (en) * 1995-06-07 1999-07-13 Miller Edge, Inc. Adjustable height sensing edge for a door
DE19606745A1 (de) * 1996-02-23 1997-08-28 Wampfler Ag Schließkantensicherung
DE19606745C2 (de) * 1996-02-23 1998-12-03 Wampfler Ag Schließkantensicherung
DE29605719U1 (de) * 1996-03-28 1997-07-31 Wampfler Ag Gummimantel für eine Schließkantensicherung
DE29606974U1 (de) * 1996-04-18 1996-10-02 Wampfler Gmbh Gummimantel für eine Schließkantensicherung
DE19647721A1 (de) * 1996-11-19 1998-05-20 Wampfler Ag Schließkantensicherheitsleiste
WO2004113656A1 (fr) * 2003-06-17 2004-12-29 Haake Andre Baguette de securite d'un dispositif de protection des bords d'impact ou de fermeture
EP1591609A1 (fr) * 2004-04-29 2005-11-02 André Haake Bordure à interrupteur pour sécurité d'un bord de fermeture

Also Published As

Publication number Publication date
EP0172136B1 (fr) 1988-05-04
DE3562503D1 (en) 1988-06-09
ATE34010T1 (de) 1988-05-15

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