GB2229317A - Switchgear cabinets - Google Patents

Switchgear cabinets Download PDF

Info

Publication number
GB2229317A
GB2229317A GB9005061A GB9005061A GB2229317A GB 2229317 A GB2229317 A GB 2229317A GB 9005061 A GB9005061 A GB 9005061A GB 9005061 A GB9005061 A GB 9005061A GB 2229317 A GB2229317 A GB 2229317A
Authority
GB
United Kingdom
Prior art keywords
frame
switchgear cabinet
bolt
extensible
bars
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
GB9005061A
Other versions
GB2229317B (en
GB9005061D0 (en
Inventor
Helmut Schaefer
Juergen Zachrai
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.)
Rittal Werk Rudolf Loh GmbH and Co KG
Original Assignee
Rittal Werk Rudolf Loh GmbH and Co KG
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 Rittal Werk Rudolf Loh GmbH and Co KG filed Critical Rittal Werk Rudolf Loh GmbH and Co KG
Publication of GB9005061D0 publication Critical patent/GB9005061D0/en
Publication of GB2229317A publication Critical patent/GB2229317A/en
Application granted granted Critical
Publication of GB2229317B publication Critical patent/GB2229317B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
    • H02B1/301—Cabinet-type casings; Parts thereof or accessories therefor mainly consisting of a frame onto which plates are mounted
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
    • H02B1/32—Mounting of devices therein
    • H02B1/34—Racks
    • H02B1/36—Racks with withdrawable units

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Casings For Electric Apparatus (AREA)
  • Drawers Of Furniture (AREA)
  • Patch Boards (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Toilet Supplies (AREA)
  • Pinball Game Machines (AREA)

Description

A SWITCHGEAR CABINET HAVING AN EXTENSIBLE FRAME The invention relates to a
switchgear cabinet having an extensible frame for the installation of component carriers or the like, which switchgear cabinet is arranged so as to be extensible from the body of the switchgear cabinet by means of horizontally extending telescopic bars, the telescopic bars being secured to a frame of the switchgear cabinet.
Known switchgear cabinets of this type have the advantage that the apparatus contained in the component carriers is also accessible at the wiring end when the extensible frame is extended from the body of the switchgear cabinet. In order to be able to limit the extension movement, expensive telescopic bars are frequently used with defined end positions, whereby the end positions are also defined by adjustable stop members. In addition, the extensible frame is provided with an extension handle, whereby the extensible frame can be extended from the body of the cabinet.
It is an object of the invention to provide a switchgear cabinet of the first mentioned type, wherein the extensible frame can easily be drawn from the body of the cabinet and, in such case, the locking of the extensible frame in the retracted position can also be released simultaneously by means of a handle.
According to the invention, this object is achieved, in that a springloaded bolt is mounted on the extensible frame in the region of the front end, facing the opening in the cabinet body, which bolt engages behind an abutment, which is fixed to the cabinet body, when the extensible frame is in its retracted position, and secures the extensible frame in this retracted position, and in that a handle is associated with the bolt, by means of which handle the locked position of the bolt is releasable by a pulling and/or rotational movement and the extensible frame is drawn from the cabinet body.
The bolt can be released from its locked position by means of the handle, and then the extensible frame can be drawn from the cabinet body. One hand and a simple manipulation are sufficient for this purpose. The handle only needs to be grasped, turned or respectively pulled, and then the frame can be drawn from the cabinet body.
So that the bolt can clearly engage in the retracted position of the extensible frame, it is necessary for the extensible frame to be guided in a non twistable manner. For this purpose, one embodiment provides four telescopic bars mounted on securing bars, which extend in pairs from the rear, vertical frame portions to the front, vertical frame portions of the frame and are connected to the latter portions.
If, in such case, provision is made for the securing bars to be provided with vertically bent end portions, whereby said bars are mounted on the frame portions of the frame, the central portions of the securing bars, facing one another, being provided with telescopic bars, and the horizontal spacing between the telescopic bars, which are associated with one another, is adapted to the width of the extensible frame, then an extensible frame of a smaller width can also be fitted into a cabinet body of a greater width.
According to a preferred embodiment, the springloaded bolt is centrally mounted on the lower, horizontal frame portion of the extensible frame and is vertically adjustable,and the abutment, which is fixed to the cabinet body, is formed by a cross-piece member, which is mounted on the two lower securing bars. The tensile force, exerted on the handle, is then transferred symmetrically to the two extension sides of the extensible frame.
The cross-piece member according to one embodiment is an open hollow profile portion, which is provided with a slot extending in the longitudinal direction. The bolt, which has a thickness corresponding to the width of the slot, engages in this slot. In such case, the locking operation is facilitated in that the bolt extends into an inclined notch at its free end.
The installation of component carriers or the like in the extensible frame is rendered possible,òin that at least the front end surfaces of at least the front frame portions of the extensible frame are provided with rows of openings and/or bores.
If a bolt is utilised, which is released by the rotational movement of its handle, this handle is preferably a rotary knob.
The invention is explained more fully with reference to one embodiment, which is shown in the drawings. In the drawings:
Fig. 1 is a perspective, partial view of an extensible frame in the extended position such frame being drawn from a frame of a switchgear cabinet; and Fig. 2 is an enlarged, partial view of the bolt and abutment.
Fig. 1 illustrates the frame 10 of a switchgear cabinet and shows the vertical frame portions 11 to 14 and the upper, horizontal frame portions 15 to 17. The lower, horizontal frame portions of the frame 10 are not shown, since the extensible frame 30, with its vertical frame portions 31, 32, 36 and 37 and the horizontal frame portions 33,34,35,38,39 and 40, only extends over the upper region of the cabinet body. The horizontal frame portions 33,34,38 and 39, which extend from the rear end to the front end of the extensible frame 30, are connected to the extensible portions of two-part telescopic bars 25,26.27 and 28. The stationary portions of these telescopic bars 25 to 28 are mounted on the inner surfaces of securing bars 19,22,23 and 24, which face one another, said bars extending in pairs on a level with the horizontal frame portions 33, 34,38 and 39 from the rear, vertical frame portions 12 and 13 to the front, vertical frame portions 11 and 14 of the frame 10. Just like the end portions 20 and 21 of the securing bar 19, the securing bars in such case may be provided with end portions which are bent at right angles. In consequence, the spacing between the pairs of securing bars can be adapted to the width of the extensible frame 30. The frame 10 is terminated externally by plate-like elements, such as is indicated by the cover wall 18.
The lower, front, horizontal frame portion 40 of the extensible frame 30 is provided with the vertically adjustable, spring-loaded bolt 43, which is guided through an opening in the horizontal, bent-over portion 41 of the frame portion 40 and engages in the continuous slot 44 provided in the abutment 29, which is an open hollow profile portion. The thickness of the bolt 43 is adapted to the width of the slot 44. The hollow profile portion with the slot 44 is so mounted on the underside of the two lower securing bars 22 and 24 that, in the retracted position, the spring- loaded bolt 43 can engage in the upwardly extending slot 44 in the hollow profile portion. During the retraction movement of the extensible frame, the bolt 43 is initially raised over its inclined notch in the hollow profile portion and then, by spring-loading, engages in the slot 44. The bolt 43 is centrally disposed on the frame portion 40, so that the extension forces act uniformly on both extension sides having the pairs of telescopic bars 25 and 26 and 27 and 28 respectively. The bolt 43 can be released by the handle 42, which is a rotary knob. In such a case, the rotary knob is grasped and rotated in a clockwise direction. The bolt 43 is moved out of the slot 44 in the abutment 29, so that the extensible frame 30 can be extended from the frame 10. A bolt 43 may also be used, which is released by pulling the handle 42. In consequence, the extensible frame 30 can be released from its retracted position by a simple manipulation and be extended from the switchgear cabinet, whereby only one hand is required.

Claims (9)

1. A switchgear cabinet having an extensible frame for the installation of component carriers or the like, which switchgear cabinet is mounted so as to be extensible from the body of the switchgear cabinet by means of horizontally extending telescopic bars, the telescopic bars being secured to a frame of the switchgear cabinet, wherein a spring-loaded bolt is mounted on the extensible frame in the region of the front end facing the opening in the body of the cabinet, which bolt engages behind an abutment, which is fixed to the body of the switchgear cabinet, when the extensible frame is in its retracted position, and which bolt secures the extensible frame in this retracted position, and wherein a handle is associated with the bolt, by means of which handle the locked position of the bolt is releasable as a result of a pulling and/or rotational movement and the extensible frame is drawn from the body of the switchgear cabinet.
2. A switchgear cabinet as claimed in claim 1, wherein four telescopic bars are mounted on securing bars, which extend in pairs from the rear, vertical frame portions to the front, vertical frame portions of the frame and are connected to the latter portions.
3. A switchgear cabinet as claimed in claim 2, wherein the securing bars are provided with vertically bent end portions, whereby said bars are mounted on the frame portions of the frame, the central portions of the securing bars facing one another, being provided with telescopic bars,and the horizontal spacing between the telescopic bars, which are associated with one another, is adapted to the width of the extensible frame.
4. A switchgear cabinet as claimed in one of claims 1 to 3, wherein the spring-loaded bolt is mounted centrally on the lower, horizontal frame portion of the extensible frame and is vertically adjustable, and wherein the abutment, which is fixed to the body of the switchgear cabinet, is formed by a cross-piece member, which is mounted on the two lower securing bars.
5. A switchgear cabinet as claimed in claim 4, wherein the cross-piece member is an open hollow profile portion having a continuous slot in one side face, and wherein the thickness of the bolt is adapted to the width of the slot.
6. A switchgear cabinet as claimed in claim 4 or 5, wherein the bolt extends into an inclined notch at its free locking end.
7. A switchgear cabinet as claimed in one of claims 1 to 6, wherein at least the front edges of at least the front frame portions of the extensible frame are provided with row-s of openings and/or bores.
8. A switchgear cabinet as claimed in one of claims 1 to 7, wherein the handle for a bolt, which is releasable by means of a rotational movement, is a rotary knob.
9. A switchgear cabinet having an extensible frame for the installation of component carriers or the like substantially as hereinbefore described with reference to the accompanying drawings.
Published 1990 atThe Patent OMce, State House. 8891 High Holborn. London WCIR477.Further copies maybe obtained from The Patent OiSceBales Branch, St Mary Cray. Orpington, Kent BRS 3RD. Printed by Multiplex techniques ltd. St Mary Cray. Kent, Con. V8T
GB9005061A 1989-03-08 1990-03-07 A switchgear cabinet having an extensible frame Expired - Fee Related GB2229317B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3907471A DE3907471A1 (en) 1989-03-08 1989-03-08 CONTROL CABINET WITH A PULL-OUT FRAME

Publications (3)

Publication Number Publication Date
GB9005061D0 GB9005061D0 (en) 1990-05-02
GB2229317A true GB2229317A (en) 1990-09-19
GB2229317B GB2229317B (en) 1994-01-12

Family

ID=6375826

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9005061A Expired - Fee Related GB2229317B (en) 1989-03-08 1990-03-07 A switchgear cabinet having an extensible frame

Country Status (5)

Country Link
DE (1) DE3907471A1 (en)
FR (1) FR2646050B1 (en)
GB (1) GB2229317B (en)
IT (1) IT1240428B (en)
SE (1) SE505083C2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2240223A (en) * 1990-01-20 1991-07-24 Ter Mate Limited A bus bar support frame
GB2345240A (en) * 1998-12-30 2000-07-05 Vero Electronics Ltd Frame for an electrical equipment cabinet
WO2003032457A1 (en) * 2001-10-10 2003-04-17 Gesab, S.A. System for producing cabinets for computer and electronic equipment
ES2209580A1 (en) * 2001-10-10 2004-06-16 Gesab, S.A. Cabinet manufacturing method for computer, involves connecting accessory structures independently to lateral sides of cabinet, according to service areas
US20180332956A1 (en) * 2017-05-22 2018-11-22 Middle Atlantic Products, Inc. Furniture with removable electronics rack

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9206605U1 (en) * 1992-05-15 1992-07-16 AMC International Alfa Metalcraft Corporation AG, Rotkreuz Cabinet body
DE4333027C1 (en) * 1993-09-28 1994-10-06 Loh Kg Rittal Werk Rack frame
DE4333026C1 (en) * 1993-09-28 1994-11-03 Loh Kg Rittal Werk Rack frame
DE4336203A1 (en) * 1993-10-23 1995-05-11 Loh Kg Rittal Werk Control cabinet with a frame made of frame legs
DE4336204C2 (en) * 1993-10-23 1996-11-07 Loh Kg Rittal Werk Frame for a control cabinet
DE29814721U1 (en) 1998-08-17 1998-11-05 Albert Ackermann GmbH & Co. KG, 51643 Gummersbach Rack for a 19 "distribution cabinet
CN103579920A (en) * 2012-07-31 2014-02-12 上海程通机电厂 Multifunctional electric appliance case cabinet
CN106159692A (en) * 2016-07-20 2016-11-23 苏州市龙源电力科技股份有限公司 A kind of assembly type switch cubicle
DE102017113262A1 (en) * 2017-06-16 2018-12-20 Washtec Holding Gmbh Vehicle treatment system with pull-out system
DE202019101225U1 (en) 2019-03-04 2019-04-04 okugi Liftsystems GmbH Control cabinet with a pull-out frame for holding electrical appliances
DE102020204742A1 (en) * 2020-04-15 2021-10-21 Siemens Mobility GmbH Electrical cabinet in a rail vehicle
CN113991464B (en) * 2021-12-03 2023-09-12 内蒙古民族大学 Low-voltage dynamic mixed harmonic reactive compensation device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB729218A (en) * 1952-06-11 1955-05-04 Electrical Apparatus Co Ltd Improvements in electromagnetic contactors
GB1126862A (en) * 1965-03-01 1968-09-11 Gen Electric Improvements in draw-out switch-gear apparatus
US3573559A (en) * 1969-09-18 1971-04-06 S & C Electric Co Interlocking fuse and switch system for distribution of electric power

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1057671B (en) * 1954-09-06 1959-05-21 Siemens Ag Rack arrangement for electrical communications or measurement technology with compartments for inserting equipment sets containing electrical components
DE1215788B (en) * 1960-12-29 1966-05-05 Hartmann & Braun Ag Box-shaped insert for racks for measurement, control or communications technology
DE1236611B (en) * 1965-09-23 1967-03-16 Boelkow Gmbh Frame for holding electrical devices designed as slide-in units
FR2130821A5 (en) * 1971-03-22 1972-11-10 Cit Alcatel
FR2166441A5 (en) * 1971-11-05 1973-08-17 Comp Generale Electricite
DE2209858A1 (en) * 1972-03-01 1973-04-19 Siemens Ag INSERT FOR SWITCHBOARDS OR CABINETS
DK149875C (en) * 1975-06-20 1987-05-18 Loegstrup Steel Kvistgaard A S THREE-DIMENSIONAL, CONSUMABLE FRAME CONSTRUCTION
GB2034528B (en) * 1978-11-06 1983-01-06 Gen Electric Equipment housings
DE2913499C2 (en) * 1979-04-04 1984-04-12 ANT Nachrichtentechnik GmbH, 7150 Backnang Snap-in device for fixing a slide-in device
DE3025253A1 (en) * 1980-07-03 1982-01-28 Siemens AG, 1000 Berlin und 8000 München Plug-in electrical component board - has locking latch and integral switch on cover plate to prevent withdrawal while on and generation of sparks
GB8506926D0 (en) * 1985-03-18 1985-04-24 Loh Kg Rittal Werk Mounting telescopic slide in rack/cabinet

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB729218A (en) * 1952-06-11 1955-05-04 Electrical Apparatus Co Ltd Improvements in electromagnetic contactors
GB1126862A (en) * 1965-03-01 1968-09-11 Gen Electric Improvements in draw-out switch-gear apparatus
US3573559A (en) * 1969-09-18 1971-04-06 S & C Electric Co Interlocking fuse and switch system for distribution of electric power

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2240223A (en) * 1990-01-20 1991-07-24 Ter Mate Limited A bus bar support frame
GB2240223B (en) * 1990-01-20 1994-02-16 Ter Mate Limited A bus bar support frame
GB2345240A (en) * 1998-12-30 2000-07-05 Vero Electronics Ltd Frame for an electrical equipment cabinet
GB2345240B (en) * 1998-12-30 2002-09-18 Vero Electronics Ltd An electrical cabinet and a frame therefor
US7090315B1 (en) 1998-12-30 2006-08-15 Apw Electronics Limited Electrical cabinet and a frame therefor
WO2003032457A1 (en) * 2001-10-10 2003-04-17 Gesab, S.A. System for producing cabinets for computer and electronic equipment
ES2209580A1 (en) * 2001-10-10 2004-06-16 Gesab, S.A. Cabinet manufacturing method for computer, involves connecting accessory structures independently to lateral sides of cabinet, according to service areas
US20180332956A1 (en) * 2017-05-22 2018-11-22 Middle Atlantic Products, Inc. Furniture with removable electronics rack
US10405648B2 (en) * 2017-05-22 2019-09-10 Legrand Av Inc. Furniture with removable electronics rack

Also Published As

Publication number Publication date
DE3907471C2 (en) 1992-01-23
IT9019541A0 (en) 1990-03-02
GB2229317B (en) 1994-01-12
DE3907471A1 (en) 1990-09-13
FR2646050B1 (en) 1993-02-05
SE505083C2 (en) 1997-06-23
IT9019541A1 (en) 1990-09-09
SE9000641D0 (en) 1990-02-23
GB9005061D0 (en) 1990-05-02
FR2646050A1 (en) 1990-10-19
SE9000641L (en) 1990-09-09
IT1240428B (en) 1993-12-15

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20050307