EP0326252A1 - Enceinte étanche - Google Patents

Enceinte étanche Download PDF

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Publication number
EP0326252A1
EP0326252A1 EP89300299A EP89300299A EP0326252A1 EP 0326252 A1 EP0326252 A1 EP 0326252A1 EP 89300299 A EP89300299 A EP 89300299A EP 89300299 A EP89300299 A EP 89300299A EP 0326252 A1 EP0326252 A1 EP 0326252A1
Authority
EP
European Patent Office
Prior art keywords
door
latch
cabinet
pawl
latches
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Withdrawn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
EP89300299A
Other languages
German (de)
English (en)
Inventor
Donald Charles Elliot
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.)
GPT Ltd
Original Assignee
Telent Technologies Services Ltd
GPT Ltd
Plessey Telecommunications Ltd
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 Telent Technologies Services Ltd, GPT Ltd, Plessey Telecommunications Ltd filed Critical Telent Technologies Services Ltd
Publication of EP0326252A1 publication Critical patent/EP0326252A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C9/00—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing
    • E05C9/02—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with one sliding bar for fastening when moved in one direction and unfastening when moved in opposite direction; with two sliding bars moved in the same direction when fastening or unfastening
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/0025—Devices for forcing the wing firmly against its seat or to initiate the opening of the wing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C9/00—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing
    • E05C9/18—Details of fastening means or of fixed retaining means for the ends of bars
    • E05C9/1825—Fastening means
    • E05C9/1875—Fastening means performing pivoting movements

Definitions

  • the present invention concerns racks and cabinets in which electronic equipment can be mounted.
  • a particular, though not exclusive, use for such cabinets is the mounting of digital telephone exchange equipment. It is important that such equipment should be shielded from electromagnetic interference (EMI) as such interference can cause malfunctions in the delicate electronic circuitry. Conversely it is also important, and may even be a legal requisite that a cabinet of electronic equipment should itself not radiate EMI.
  • EMI electromagnetic interference
  • the present invention has for an object to reduce the possibility of this happending.
  • the present invention consists in a cabinet for protecting electronic equipment from EMI, the cabinet having at least one door and the door and the cabinet having respective sealing means which come into electric contact around the periphery of the door when the latter is in its closed position, and wherein the door is provided with a plurality of latches each having a pawl, initially moveable from a retracted position within the door to an extended latching position and subsequently moveable towards the plane of the door to apply compression to the sealing means, said latches being interconnected whereby operation of one latch causes initial movement of all said pawls to their extended positions, subsequent operation of the said one latch only causing the pawl of that latch to move towards the door.
  • Figure 1(a) shows a single latch 10 mounted in a door 11 and having a pawl 12.
  • the pawl 12 is mounted on a spindle 13 which can be rotated by a handle 14.
  • the pawl 12 is shown in its retracted or non-operative state.
  • FIG. 1(b) rotation of handle 14 in the direction of arrow 15 initially moves pawl 12 to its extended or latching state. It will be seen that handle 14 has been rotated for less than 90°. In this condition the door will be held lightly shut.
  • Figure 1(c) shows the result of rotating handle 14 through 180°. The angular position of pawl 12 has remained the same. However, the pawl has moved axially with respect to spindle 13 towards the handle 14 as is shown by arrow 16. This second movement of the pawl 12 causes the requisite compression of any EMI seal between the door and its mounting.
  • FIG. 2 of the drawings this shows double doors 25, 26 mounted in a frame 27 by hinges 28.
  • Appropriate EMI Seals 29 are provided between the doors 25, 26 and frame 27.
  • Door 26 carries five latches 30, 31,32,33 and 34 of the general kind described with reference to figures 1(a), 1(b) and 1(c).
  • each of the latches 30-34 has its pawl 12 extended by a portion 12′ which provides an additional arm. All the arms 12 ⁇ of the various pawls are linked by pivotally connected linking rods 36. In this figure the pawls 12 are all shown in their retracted state.
  • FIG 2 the handle 14 of latch 32 is shown.
  • the handles of all the other latches are now shown but are similarly oriented. If handle 14 is now rotated in the manner shown first in Figure 1(b), then its pawl 12 will be moved into its extended position engaging behind the associated striker plate 35 of door 25.
  • the linking rods 36 under the action of the arm 12′ of central latch 32 will move the pawls 12 of the other latches into their extended states behind their associated striker plates 35.
  • continued rotation of handle 14 of central latch 32 will not be transmitted to the other latches, as the movement of its pawl 12 will now be only of axial with respect to its spindle 13.
  • the linking rods 36 are not capable of transmitting this relatively small degree of movement.
  • the arrangement just disclosed has the advantage that the chances of accidental damage to the doors or associated seals is reduced whilst ensuring that a correct degree of compression can be applied to the seals.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casings For Electric Apparatus (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
EP89300299A 1988-01-29 1989-01-13 Enceinte étanche Withdrawn EP0326252A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8802004 1988-01-29
GB888802004A GB8802004D0 (en) 1988-01-29 1988-01-29 Sealed cabinet

Publications (1)

Publication Number Publication Date
EP0326252A1 true EP0326252A1 (fr) 1989-08-02

Family

ID=10630740

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89300299A Withdrawn EP0326252A1 (fr) 1988-01-29 1989-01-13 Enceinte étanche

Country Status (3)

Country Link
EP (1) EP0326252A1 (fr)
JP (1) JPH01296697A (fr)
GB (2) GB8802004D0 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2798951A1 (fr) * 1999-09-29 2001-03-30 Loh Kg Rittal Werk Dispositif de fermeture pour armoire electrique
WO2007020031A1 (fr) * 2005-08-16 2007-02-22 Dirak Dieter Ramsauer Konstruktionselemente Gmbh & Co. Kg Dispositif de fermeture pour realiser le verrouillage multipoint de portes ou de parties de paroi dans des boitiers ou des armoires
FR3066221A1 (fr) * 2017-05-09 2018-11-16 Comec Menuiserie comprenant un ouvrant et dispositif de verrouillage de l'ouvrant, et ensemble comprenant une telle menuiserie
EP3744929A1 (fr) * 2019-05-27 2020-12-02 EMKA BESCHLAGTEILE GmbH & Co. KG Fermeture à crémone
WO2021237007A1 (fr) * 2020-05-22 2021-11-25 Southco, Inc. Verrou rotatif à guide de ressort

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2275724B (en) * 1993-03-02 1995-10-25 Malcoe Precision Fabrications Door fastener
CN107882461B (zh) * 2017-02-15 2019-08-20 南京聚诚致远财务顾问有限公司 一种能自动对照的防潮密闭门自动启闭装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR862487A (fr) * 1939-08-29 1941-03-07 Funke August Perfectionnements aux dispositifs de verrouillage
US2460961A (en) * 1944-09-29 1949-02-08 Wilson Mfg Company Quick-acting securing means for watertight doors

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR862487A (fr) * 1939-08-29 1941-03-07 Funke August Perfectionnements aux dispositifs de verrouillage
US2460961A (en) * 1944-09-29 1949-02-08 Wilson Mfg Company Quick-acting securing means for watertight doors

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2798951A1 (fr) * 1999-09-29 2001-03-30 Loh Kg Rittal Werk Dispositif de fermeture pour armoire electrique
WO2007020031A1 (fr) * 2005-08-16 2007-02-22 Dirak Dieter Ramsauer Konstruktionselemente Gmbh & Co. Kg Dispositif de fermeture pour realiser le verrouillage multipoint de portes ou de parties de paroi dans des boitiers ou des armoires
FR3066221A1 (fr) * 2017-05-09 2018-11-16 Comec Menuiserie comprenant un ouvrant et dispositif de verrouillage de l'ouvrant, et ensemble comprenant une telle menuiserie
EP3744929A1 (fr) * 2019-05-27 2020-12-02 EMKA BESCHLAGTEILE GmbH & Co. KG Fermeture à crémone
WO2021237007A1 (fr) * 2020-05-22 2021-11-25 Southco, Inc. Verrou rotatif à guide de ressort
CN115667649A (zh) * 2020-05-22 2023-01-31 索斯科公司 带有弹簧引导件的旋转闩锁
US20230175295A1 (en) * 2020-05-22 2023-06-08 Southco, Inc. Rotary latch with spring guide
CN115667649B (zh) * 2020-05-22 2025-07-18 索斯科公司 带有弹簧引导件的旋转闩锁

Also Published As

Publication number Publication date
GB8802004D0 (en) 1988-02-24
GB8900573D0 (en) 1989-03-08
JPH01296697A (ja) 1989-11-30
GB2214976B (en) 1992-07-15
GB2214976A (en) 1989-09-13

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE CH DE FR IT LI NL SE

17P Request for examination filed

Effective date: 19891101

17Q First examination report despatched

Effective date: 19910220

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: GPT LIMITED

STAA Information on the status of an ep patent application or granted ep patent

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18W Application withdrawn

Withdrawal date: 19921020