EP0026865A2 - Dispositif d'enlèvement d'un avertisseur d'incendie d'un socle - Google Patents

Dispositif d'enlèvement d'un avertisseur d'incendie d'un socle Download PDF

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Publication number
EP0026865A2
EP0026865A2 EP80105626A EP80105626A EP0026865A2 EP 0026865 A2 EP0026865 A2 EP 0026865A2 EP 80105626 A EP80105626 A EP 80105626A EP 80105626 A EP80105626 A EP 80105626A EP 0026865 A2 EP0026865 A2 EP 0026865A2
Authority
EP
European Patent Office
Prior art keywords
fire detector
cylindrical component
fire
axis
movable
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
EP80105626A
Other languages
German (de)
English (en)
Other versions
EP0026865A3 (en
EP0026865B1 (fr
Inventor
Rudolf Fässler
Wolfgang Schubert
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.)
Cerberus AG
Original Assignee
Cerberus 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 Cerberus AG filed Critical Cerberus AG
Publication of EP0026865A2 publication Critical patent/EP0026865A2/fr
Publication of EP0026865A3 publication Critical patent/EP0026865A3/de
Application granted granted Critical
Publication of EP0026865B1 publication Critical patent/EP0026865B1/fr
Expired legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
    • G08B17/113—Constructional details
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/12—Checking intermittently signalling or alarm systems
    • G08B29/14—Checking intermittently signalling or alarm systems checking the detection circuits
    • G08B29/145—Checking intermittently signalling or alarm systems checking the detection circuits of fire detection circuits

Definitions

  • the invention relates to a device for removing a fire detector with an essentially rotationally symmetrical shape from a bayonet base, which device has a cylindrical component which can be pushed over the fire detector and whose axis corresponds to the axis of rotation of the fire detector.
  • Such devices are known, for example, from Swiss Patents No. 508 251 and No. 558 963. They serve to fire detectors, whose outer shape and housing essentially, i.e. apart from, for example, openings and retaining webs, rotationally symmetrical, i.e. e.g. is cylindrical or slightly conical, from a base. In most cases, this base is designed as a bayonet base. To insert the fire detector into the base and to remove the same from this base, the fire detector must therefore be rotated about its axis.
  • fire detectors and their bases are usually installed in places where they are not easily accessible by hand. Removing the fire alarm from a pedestal, for example for checking and cleaning purposes, is therefore very time-consuming without any tools .
  • the previously known fire detectors described contain locking elements which make it impossible to release the bayonet lock without aids.
  • this locking takes place by means of a movable element which slips into a cutout in the fire detector.
  • the removal device suitable for releasing the closure consists of a cylindrical component which presses the locking element mentioned back into its starting position as soon as the cylindrical component is pushed over the fire detector.
  • a rubber insert in the cylindrical component clamps the fire detector so that it can be turned around its axis so that the bayonet catch is released.
  • a disadvantage of this known device is that it can only be used if the dimensions of the fire detectors can be kept within very narrow tolerances. Even if these tolerances are slightly exceeded, the fire detector cannot be securely clamped and the locking mechanism can no longer be safely released.
  • the known removal devices were not usable for different types of fire detectors, which may also be used mixed in the same system, so that a special removal device was required for each detector type.
  • the object of the invention is to eliminate the above-mentioned disadvantages of previously known devices and in particular to create a device for removing egg nes fire detector from a base, which can be used reliably for fire detectors with larger tolerances of the outer dimensions than before and can also be used for fire detectors of different types and dimensions.
  • this object is achieved in that a clamping device is provided which has at least one element which, when an axially directed pressure is exerted, can be pushed inwards in the radial direction until it is seated on the outer surface of the fire detector.
  • a bushing 9 is inserted into the upper opening of a long holding rod 10, which is designed as a tube and carries a plate 11 on its upper edge.
  • a sliding tube 12 is inserted into the bushing 9 so as to be movable in the axial direction.
  • In the lower part of this sliding tube there is an end plate 18, while a stamp 13 is inserted in the upper part thereof, the position of the stamp being fixed by a pin 14 inserted into one of the bores 15.
  • a stop plate 5 is attached, the top of which carries a rubber or plastic pad 6.
  • the sliding tube: l2 with the punch 13 and the stop plate 5 is pressed upwards by an intermediate sleeve 9 and end plate 18 arranged spiral spring 19.
  • this sleeve 8 On the stop plate 5 is by means of one or more, e.g. three, bracket 7 at a suitable distance above the stop plate 5, a sleeve 8 attached.
  • the upper end of this sleeve 8 is shaped as a cylindrical component 3.
  • the opening of this cylindrical component 3 is selected such that it is a little bit larger than the outside diameter of the fire detector 20 to be removed from a base.
  • a clamping device is attached to the sleeve 8, which comprises a movable element 1, the free end of which rests on an oblique piece of the strip 4.
  • the cylindrical component 13 can be completely slipped over the fire detector 20, namely into the groove between the fire detector and base bead. This is particularly useful in the case of fire detectors which are protected in a base by a locking bolt against unauthorized removal, as described, for example, in Swiss Patent No. 558,963. In this case, the locking bolt is pushed back into this gap by completely pressing the cylindrical component 3, and the fire detector can be detached from the base.
  • Fig. 2 shows such a device, in which the parts identical to the previous figure have the same designations.
  • the device according to FIG. 2 differs only in the design of the sleeve.
  • this consists of an outer sleeve part 28 and the cylindrical component 23 movable in this part.
  • a plurality of springs 24 are provided which press the part 23 upwards in comparison to the part 28.
  • three slots 25 are provided in the inner part 23, through which the jaws 2 protrude from the outer part 28 through the inner cylinder part 23 and can clamp the fire detector 20.
  • the inner cylindrical part 23 When this device is pushed onto a fire detector 20, the inner cylindrical part 23 first slides into the slot between the fire detector and base and presses the locking bolt back. If a further pressure is now exerted, the spring 24 is tensioned and the rest of the device is also pushed over the fire detector until the jaws clamp the fire detector and the bayonet catch can be unlocked.
  • the mobility of the two sleeve parts 23 and 28 relative to one another means that the device can in any case be pushed far enough over the fire detector to ensure secure clamping and at the same time the locking is released. In order to obtain a larger margin, it can be expedient to make the stop for the mobility of the two sleeve parts 23 and 28 adjustable relative to one another, e.g.
  • a device designed in this way for removing a fire detector from a base thus shows a largely universal usability in fire detectors with a rotationally symmetrical shape of different structural heights without the need to adhere to narrow tolerances.
  • stop plate 5 and the cylindrical component 3 or 23 may be expedient to design the stop plate 5 and the cylindrical component 3 or 23 to be movable relative to one another.
  • This exemplary embodiment differs from the devices according to FIGS. 1 and 2 in that the holding tube 10 carries a closure plate 32, in the center of which a ball-and-socket joint 30 is arranged.
  • a rod 31 which is displaceably guided through the end plate 18 of the sliding tube 12 against the force of the spring 19, can be rotated with respect to the mounting tube 10 to a certain angle.
  • the sliding tube 12 can be moved in the sleeve 29, which is connected to the rod 31.
  • the funnel 33 attached to the end plate 32 limits the possible angular deflection.

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Fire Alarms (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Fire-Detection Mechanisms (AREA)
EP19800105626 1979-10-05 1980-09-19 Dispositif d'enlèvement d'un avertisseur d'incendie d'un socle Expired EP0026865B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH898679A CH639859A5 (de) 1979-10-05 1979-10-05 Vorrichtung zur entnahme eines brandmelders aus einem sockel.
CH8986/79 1979-10-05

Publications (3)

Publication Number Publication Date
EP0026865A2 true EP0026865A2 (fr) 1981-04-15
EP0026865A3 EP0026865A3 (en) 1982-02-03
EP0026865B1 EP0026865B1 (fr) 1985-04-10

Family

ID=4347074

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800105626 Expired EP0026865B1 (fr) 1979-10-05 1980-09-19 Dispositif d'enlèvement d'un avertisseur d'incendie d'un socle

Country Status (4)

Country Link
EP (1) EP0026865B1 (fr)
JP (1) JPS6240609Y2 (fr)
CH (1) CH639859A5 (fr)
DE (1) DE3070454D1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2198383A (en) * 1986-11-22 1988-06-15 Anthony Francis Flanagan Gripping device
GB2404481B (en) * 2002-04-11 2005-11-16 Timothy R Mcgreal Smoke alarm and mounting kit
WO2014121349A1 (fr) * 2013-08-27 2014-08-14 Leatherby Darin Vincent Système et procédé de montage et de démontage d'un détecteur de fumée
DE10353837B4 (de) * 2003-11-18 2017-05-24 Robert Bosch Gmbh Prüfeinrichtung für Brandmelder
EP3579209A1 (fr) 2018-06-06 2019-12-11 Clemens Willy Appareil de travail pouvant être manipulé manuellement destiné à la création et à l'entretien de détecteurs
CN111958524A (zh) * 2020-09-23 2020-11-20 东风汽车集团有限公司 圆柱快速定心机构

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2584866Y2 (ja) * 1991-05-01 1998-11-11 能美防災株式会社 火災感知器の着脱具
JP2574674Y2 (ja) * 1991-05-01 1998-06-18 能美防災株式会社 火災感知器の着脱具

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH508251A (de) * 1970-07-23 1971-05-31 Cerberus Ag Ionisationsfeuermelder
CH558963A (de) * 1973-12-07 1975-02-14 Cerberus Ag Brandmelder.
US3900795A (en) * 1973-08-15 1975-08-19 Honeywell Inc Installation and test tool for ionization smoke detector

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5617061Y2 (fr) * 1977-08-30 1981-04-21

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH508251A (de) * 1970-07-23 1971-05-31 Cerberus Ag Ionisationsfeuermelder
US3900795A (en) * 1973-08-15 1975-08-19 Honeywell Inc Installation and test tool for ionization smoke detector
CH558963A (de) * 1973-12-07 1975-02-14 Cerberus Ag Brandmelder.

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2198383A (en) * 1986-11-22 1988-06-15 Anthony Francis Flanagan Gripping device
GB2404481B (en) * 2002-04-11 2005-11-16 Timothy R Mcgreal Smoke alarm and mounting kit
DE10353837B4 (de) * 2003-11-18 2017-05-24 Robert Bosch Gmbh Prüfeinrichtung für Brandmelder
WO2014121349A1 (fr) * 2013-08-27 2014-08-14 Leatherby Darin Vincent Système et procédé de montage et de démontage d'un détecteur de fumée
EP3579209A1 (fr) 2018-06-06 2019-12-11 Clemens Willy Appareil de travail pouvant être manipulé manuellement destiné à la création et à l'entretien de détecteurs
DE102018113461A1 (de) 2018-06-06 2019-12-12 Clemens Willy Manuell handhabbares Arbeitsgerät zum Errichten und Warten von Detektoren
CN111958524A (zh) * 2020-09-23 2020-11-20 东风汽车集团有限公司 圆柱快速定心机构

Also Published As

Publication number Publication date
DE3070454D1 (en) 1985-05-15
EP0026865A3 (en) 1982-02-03
CH639859A5 (de) 1983-12-15
EP0026865B1 (fr) 1985-04-10
JPS6240609Y2 (fr) 1987-10-17
JPS5656356U (fr) 1981-05-15

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