EP0156019A2 - Dispositif pour l'assemblage d'éléments de cloisons pour socles de chariots dans des installations d'impression - Google Patents

Dispositif pour l'assemblage d'éléments de cloisons pour socles de chariots dans des installations d'impression Download PDF

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Publication number
EP0156019A2
EP0156019A2 EP84115419A EP84115419A EP0156019A2 EP 0156019 A2 EP0156019 A2 EP 0156019A2 EP 84115419 A EP84115419 A EP 84115419A EP 84115419 A EP84115419 A EP 84115419A EP 0156019 A2 EP0156019 A2 EP 0156019A2
Authority
EP
European Patent Office
Prior art keywords
centering
sheet metal
recess
wedge
spring wire
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
EP84115419A
Other languages
German (de)
English (en)
Other versions
EP0156019B1 (fr
EP0156019A3 (en
Inventor
Rolf Dipl.-Ing. Humbs
G. Dipl.-Ing. Stempfl (Fh)
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP0156019A2 publication Critical patent/EP0156019A2/fr
Publication of EP0156019A3 publication Critical patent/EP0156019A3/de
Application granted granted Critical
Publication of EP0156019B1 publication Critical patent/EP0156019B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/02—Framework

Definitions

  • the invention relates to a device according to the preamble of patent claim 1.
  • a typewriter With printing devices such as e.g. Typewriters or teleprinters, a typewriter is generally moved by an electric drive device along a record carrier.
  • the writing carriage is mounted on two guide rods, which in turn are arranged torsion-free and dimensionally stable in a printer block.
  • the printer stand has a box-shaped structure and is made up of individual sheet metal elements produced by the stamping process.
  • connection methods are expensive and will be. therefore only used in extreme conditions.
  • connection methods also have the disadvantage that after assembly or connection of the sheet metal elements to one another, e.g. disassembly required for servicing is difficult or not possible at all.
  • the object of the invention is to provide a device for connecting sheet metal elements of the type mentioned, which enables the sheet metal parts to be assembled in a stable and play-free manner without the connection being released in the event of vibrations.
  • the invention is based on the principle of assigning the sheet metal parts to be connected in a form-fitting manner, but only holding them in a force-fitting manner.
  • a centering projection with a wedge-shaped recess is arranged on one sheet metal element and a corresponding centering recess on the other sheet metal element.
  • the centering lug is inserted through the centering recess and between the wedge-shaped receiving opening the surface of the one sheet and a slope of the wedge-shaped recess braced a spring steel wire.
  • the inclination of the incline lies in the range of the self-locking angle, so that when the entire device is shaken, it does not come loose but, on the contrary, leads to an increasingly firm bracing of the sheet metal elements with one another.
  • the wedge principle used automatically eliminates any play air that may occur during machining of the metal sheets, so that the connection does not loosen, for example, when shaken, but is braced more and more tightly by a kind of servo effect.
  • the sheet metal elements can e.g. can be easily separated from one another for service purposes by swinging the spring wire out of the wedge-shaped recesses.
  • the device according to the invention results in low manufacturing costs, simple assembly of the sheet metal elements with respect to one another without holding devices, and easy disassembly.
  • the sheet metal elements can be subjected to an inexpensive surface coating, since there is no risk of damaging this surface coating by welding, etc.
  • the wall elements referred to below with sheet metal elements can also be made of plastic, which must then be designed with regard to its strength, at least in the area of the centering lugs, in such a way that there is no deformation of the wedge-shaped recess when braced via the spring wire.
  • a printer bracket is provided for holding the printing carriage.
  • This printer block consists of a first sheet metal element 1 produced in the stamping process and further second sheet metal elements 2 serving as side elements.
  • the first sheet metal element 1 has centering projections 3 formed on its side walls, which cooperate with corresponding centering recesses 4 of the second sheet metal element.
  • the base of the centering lugs 3 has a fitting part 7 or is shaped as such.
  • this fitting part 7 engages in a corresponding fitting slot 8 in the centering recess and is guided laterally without play by this fitting slot 8.
  • the length of the centering lugs is now designed so that in the assembled state, the centering lugs 3 protrude with their upper parts through the centering recesses, to the extent that the surface 9 of the zen Trier recess 4 supporting sheet metal element 2 and the slope 6 of the wedge-shaped recess 5 form a wedge-shaped receiving opening with a self-locking opening angle for a spring wire 10 engaging in the receiving opening.
  • the spring wire 10 consisting of spring steel wire is now pre-bent in the rest position (dashed line) as shown in FIG. 3 and is used to connect the two sheet metal elements 1 and 2 with its V-shaped part 11 via the centering projection 3/1 has two wedge-shaped recesses 5, inserted, so that it surrounds the centering bracket. Then the arms 12 of the spring wire 10 are pivoted forward in accordance with the direction of the arrow shown and locked in the recesses 5 of the centering lugs 3/2. Due to its elastic effect, the spring wire 10 now presses the sheet metal element 2 against the sheet metal element 1 via the bevel 6.
  • the inclination of the bevel 6 is designed such that it lies below the self-locking angle, as a result of which a play air occurring during the processing of the sheet metal is automatically eliminated. and the connection becomes more and more tight due to a kind of servo effect when shaken.
  • the sheet metal element 2 is thus firmly connected to the recesses of the centering shoulders 3/2 and 3/1 via the bracing points 13.
  • sharp-edged transverse openings 14 are provided on the centering recesses 4 perpendicular to the fitting slot 8 in the receiving area of the spring wire.
  • the cross openings 14 now facilitate on the one hand, the production of the receiving opening 8 in the stamping process, which results in a clearly defined length of the fitting slot 8, but on the other hand, the transverse openings 14 have sharp edges, which bear against the spring wire 10 and for a good electrical connection between the two sheet metal parts 1 and 2 to lead. In order to achieve optimum electromagnetic compatibility, this good conductive connection between the sheet metal elements is necessary.
  • spring wire 10 can be designed in a W-shaped manner. It is then pivoted when assembling the device from the rest position shown in dashed lines into the working position and jammed in the wedge-shaped recesses.
  • the spring wire instead of a continuous spring wire that is clamped between several recesses, it is also possible, for example, the spring wire to be fixed on one side with the sheet metal element 2 to connect and only to pivot its free end into a recess in the centering projection.
  • the spring wire can be V-shaped and encompass the centering lug in the manner of a clip.
  • the centering lugs are components of the sheet metal elements.
  • plastic elements with centering projections or centering openings instead of the sheet metal elements.
  • the strength of the plastic must be such that there is no deformation in the area of the wedge-shaped recess when the spring wire is inserted.
  • the spring wire itself can also consist of plastic.
  • the sheet metal elements together with their centering lugs and centering recesses are produced in one piece using the stamping process.

Landscapes

  • Accessory Devices And Overall Control Thereof (AREA)
  • Casings For Electric Apparatus (AREA)
  • Connection Of Plates (AREA)
EP84115419A 1984-03-30 1984-12-14 Dispositif pour l'assemblage d'éléments de cloisons pour socles de chariots dans des installations d'impression Expired EP0156019B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3411914 1984-03-30
DE3411914A DE3411914C1 (de) 1984-03-30 1984-03-30 Vorrichtung zum Verbinden von Wandelementen,fuer Druckerboecke in Druckeinrichtungen

Publications (3)

Publication Number Publication Date
EP0156019A2 true EP0156019A2 (fr) 1985-10-02
EP0156019A3 EP0156019A3 (en) 1988-05-11
EP0156019B1 EP0156019B1 (fr) 1989-08-30

Family

ID=6232154

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84115419A Expired EP0156019B1 (fr) 1984-03-30 1984-12-14 Dispositif pour l'assemblage d'éléments de cloisons pour socles de chariots dans des installations d'impression

Country Status (4)

Country Link
US (1) US4688692A (fr)
EP (1) EP0156019B1 (fr)
JP (1) JPS60217189A (fr)
DE (2) DE3411914C1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2191150A (en) * 1986-05-28 1987-12-09 Ricoh Kk Selective printing apparatus
EP1772278A3 (fr) * 2005-09-28 2007-05-23 Brother Kogyo Kabushiki Kaisha Appareil d'enregistrement d'images

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0773932B2 (ja) * 1985-09-26 1995-08-09 松下電器産業株式会社 軸固定装置
DE3539505A1 (de) * 1985-11-07 1987-05-14 Mannesmann Ag Verbindung fuer duennwandige, ebene, als wand-, decken- oder bodenteile dienende flaechenbauteile
DE3926572A1 (de) * 1989-08-11 1991-02-14 Triumph Adler Ag Schreibmaschine, drucker od. dgl.
US5702021A (en) * 1994-10-26 1997-12-30 Sumitomo Wiring Systems, Ltd. Locking construction of electric connection box
US5841330A (en) 1995-03-23 1998-11-24 Bartley Machines & Manufacturing Series coupled filters where the first filter is a dielectric resonator filter with cross-coupling
JP3106293B2 (ja) * 1996-07-19 2000-11-06 矢崎総業株式会社 電気接続箱
FR2760684B1 (fr) * 1997-03-11 1999-05-07 Aps Engineering Mecanisme d'impression compact
US6571597B1 (en) * 2001-04-04 2003-06-03 Tucker Industries, Inc. Process for providing metal stampings with integral studs
DE102005027994A1 (de) * 2005-03-18 2006-09-21 BWH-Koffer-, Handels- und Vermögensverwaltungsgesellschaft mbH & Co KG Versandbehältnis
US8177118B2 (en) * 2009-06-19 2012-05-15 Jian Tao Demountable packing box
WO2015185084A1 (fr) * 2014-06-02 2015-12-10 Hewlett-Packard Development Company, L.P. Assemblage de système de manipulation d'instruments

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2363721A1 (fr) * 1976-09-06 1978-03-31 Jaeger Dispositif de fixation elastique de deux pieces assemblees sur leur face arriere
DE2945642A1 (de) * 1979-11-12 1981-05-21 Siemens AG, 1000 Berlin und 8000 München Vorrichtung zur kraftschluessigen befestigung von fuehrungsstangen fuer schreibwagen in druckeinrichtungen

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3127047A (en) * 1964-03-31 Mounting clamp for ceiling outlet boxes
US380219A (en) * 1888-03-27 Butter-package
US851597A (en) * 1906-02-07 1907-04-23 Louie T La Paugh Outlet-box.
US854046A (en) * 1906-02-07 1907-05-21 Louie T La Paugh Outlet-box.
US1220085A (en) * 1916-06-17 1917-03-20 Benjamin F Freeman Receptacle-closure.
US2630477A (en) * 1950-06-06 1953-03-03 Murray Mfg Corp Panel board cover
US2877919A (en) * 1956-12-17 1959-03-17 Murray Mfg Corp Enclosure
US3394909A (en) * 1966-07-12 1968-07-30 Robertshaw Controls Co Single and gang mounts for electric casings
DE2629547A1 (de) * 1976-07-01 1978-01-05 Wolf & Co Klimatechnik Gmbh Klemmbuegel
US4147276A (en) * 1977-09-29 1979-04-03 Canoga Controls Corporation Retainer device means for hinging or removably attaching a cover to a chassis
DE2945842A1 (de) * 1979-11-09 1981-05-21 Siemens AG, 1000 Berlin und 8000 München Flexible elektrische leitung mit schutzeinrichtung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2363721A1 (fr) * 1976-09-06 1978-03-31 Jaeger Dispositif de fixation elastique de deux pieces assemblees sur leur face arriere
DE2945642A1 (de) * 1979-11-12 1981-05-21 Siemens AG, 1000 Berlin und 8000 München Vorrichtung zur kraftschluessigen befestigung von fuehrungsstangen fuer schreibwagen in druckeinrichtungen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2191150A (en) * 1986-05-28 1987-12-09 Ricoh Kk Selective printing apparatus
GB2191150B (en) * 1986-05-28 1991-01-30 Ricoh Kk Printing apparatus
EP1772278A3 (fr) * 2005-09-28 2007-05-23 Brother Kogyo Kabushiki Kaisha Appareil d'enregistrement d'images
US7877040B2 (en) 2005-09-28 2011-01-25 Brother Kogyo Kabushiki Kaisha Image recording apparatus

Also Published As

Publication number Publication date
EP0156019B1 (fr) 1989-08-30
US4688692A (en) 1987-08-25
EP0156019A3 (en) 1988-05-11
DE3411914C1 (de) 1985-08-22
JPS60217189A (ja) 1985-10-30
DE3479575D1 (en) 1989-10-05

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