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DE20301402U1 - Connector for holding sand molds together comprises washer and nut which are biased together by spring which fits into guide grooves in nut - Google Patents

Connector for holding sand molds together comprises washer and nut which are biased together by spring which fits into guide grooves in nut

Info

Publication number
DE20301402U1
DE20301402U1 DE20301402U DE20301402U DE20301402U1 DE 20301402 U1 DE20301402 U1 DE 20301402U1 DE 20301402 U DE20301402 U DE 20301402U DE 20301402 U DE20301402 U DE 20301402U DE 20301402 U1 DE20301402 U1 DE 20301402U1
Authority
DE
Germany
Prior art keywords
nut
spring
fits
connector
guide grooves
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.)
Expired - Lifetime
Application number
DE20301402U
Other languages
German (de)
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.)
Karl Schmidt Fabrik fuer Giessereibedarf GmbH and Co
Original Assignee
Karl Schmidt Fabrik fuer Giessereibedarf GmbH and Co
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 Karl Schmidt Fabrik fuer Giessereibedarf GmbH and Co filed Critical Karl Schmidt Fabrik fuer Giessereibedarf GmbH and Co
Priority to DE20301402U priority Critical patent/DE20301402U1/en
Publication of DE20301402U1 publication Critical patent/DE20301402U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
    • F16B39/26—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object with spring washers fastened to the nut or bolt-head
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • F01N13/1844—Mechanical joints
    • F01N13/1855—Mechanical joints the connection being realised by using bolts, screws, rivets or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/24—Methods or apparatus for fitting, inserting or repairing different elements by bolts, screws, rivets or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Moulds, Cores, Or Mandrels (AREA)

Abstract

The connector for holding sand molds together comprises a washer (1) and a nut (2). These are biased together by a spring (3) which fits into guide grooves in the nut. The washer is made from DC01 steel, the nut from RSt steel and the spring from spring steel.

Description

·» ·· *».* ti* \** *..* KARL SCHMIDT·» ·· *».* ti* \** *..* KARL SCHMIDT

SCHMITTEN/TSSCHMITTEN/TS

Beschreibung:Description:

Gießformen bestehen in der Regel aus mehreren Form- und Kernteilen.Casting molds usually consist of several mold and core parts.

Diese aus Formsand und Bindemittel vorgefertigten Teile werden durch Kleber, Sonderschrauben und /oder Gewindestangen sog. Kernverbindungselementen zusammengefügt.These parts, which are prefabricated from molding sand and binding agent, are joined together using adhesives, special screws and/or threaded rods, so-called core connecting elements.

Anschließend werden die Gießformen in ein Schlichtebad getaucht und in einem Ofen getrocknet.The molds are then dipped in a sizing bath and dried in an oven.

Durch die unterschiedlichen Ausdehnungskoeffizienten der Materialien löst sich das Mutterscheibenelement beim Trocknen im Ofen und muß nach der Abkühlung erneut angezogen werden.Due to the different expansion coefficients of the materials, the nut disc element loosens during drying in the oven and must be tightened again after cooling.

Neu und erfindungsgemäß an diesem frei drehbaren, eingenietetem, federnden Mutterscheibenelemt ist, daß durch die eingesetzten Federn die Längenausdehnung kompensiert wird. Hauptvorteil dieser Erfindung ist eine Zeitersparnis, da das Nachziehen des Verbindungselementes entfällt und das Kernpaket während des gesamten Abkühlvorganges transportfähig bleibt.What is new and inventive about this freely rotating, riveted, spring-loaded nut disc element is that the length expansion is compensated by the springs used. The main advantage of this invention is time saving, since there is no need to retighten the connecting element and the core package remains transportable during the entire cooling process.

Claims (1)

Federndes Mutterscheibenelement, dadurch gekennzeichnet, daß sich zwischen der Stirnplatte (1) (Werkstoff DC01) und der darauf frei drehbar eingenieteten Mutter (2) (Wekstoff RSt) mit Federführung und Bördelansatz ein Federsersatz (3) (Werkstoff Federstahl) eingesetzt ist.
Das Element ist in sich mit allen Teilen (Stirnplatte (1), Mutter (2), Federsatz (3))zusammen montiert. Spring-loaded nut disk element, characterized in that a spring replacement ( 3 ) (material spring steel) is inserted between the front plate ( 1 ) (material DC01) and the freely rotatably riveted nut ( 2 ) (material RSt) with spring guide and flanged attachment.
The element is assembled together with all parts (face plate ( 1 ), nut ( 2 ), spring set ( 3 )).
DE20301402U 2003-01-30 2003-01-30 Connector for holding sand molds together comprises washer and nut which are biased together by spring which fits into guide grooves in nut Expired - Lifetime DE20301402U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20301402U DE20301402U1 (en) 2003-01-30 2003-01-30 Connector for holding sand molds together comprises washer and nut which are biased together by spring which fits into guide grooves in nut

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20301402U DE20301402U1 (en) 2003-01-30 2003-01-30 Connector for holding sand molds together comprises washer and nut which are biased together by spring which fits into guide grooves in nut

Publications (1)

Publication Number Publication Date
DE20301402U1 true DE20301402U1 (en) 2003-04-17

Family

ID=7979553

Family Applications (1)

Application Number Title Priority Date Filing Date
DE20301402U Expired - Lifetime DE20301402U1 (en) 2003-01-30 2003-01-30 Connector for holding sand molds together comprises washer and nut which are biased together by spring which fits into guide grooves in nut

Country Status (1)

Country Link
DE (1) DE20301402U1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010064427B4 (en) * 2010-12-14 2015-10-22 Richard Ambros Self-locking knurled nut or thumbscrew for a durable and vibration-proof screw connection of two parts
CN105351331A (en) * 2015-10-30 2016-02-24 无锡市东赫金属制品有限公司 Nut with spring and washer
EP3104028A1 (en) * 2015-06-08 2016-12-14 Bossard AG Fastener arrangement
WO2018028992A1 (en) * 2016-08-11 2018-02-15 Hartmut Flaig Fixing nut for exhaust manifolds and internal combustion engine
WO2019020589A1 (en) 2017-07-26 2019-01-31 Bayerische Motoren Werke Aktiengesellschaft FASTENING NUT AND COMBUSTION ENGINE WITH FIXING NUT

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010064427B4 (en) * 2010-12-14 2015-10-22 Richard Ambros Self-locking knurled nut or thumbscrew for a durable and vibration-proof screw connection of two parts
EP3104028A1 (en) * 2015-06-08 2016-12-14 Bossard AG Fastener arrangement
US10415626B2 (en) 2015-06-08 2019-09-17 Bossard Ag Fastener arrangement
CN105351331A (en) * 2015-10-30 2016-02-24 无锡市东赫金属制品有限公司 Nut with spring and washer
WO2018028992A1 (en) * 2016-08-11 2018-02-15 Hartmut Flaig Fixing nut for exhaust manifolds and internal combustion engine
EP3497311B1 (en) * 2016-08-11 2020-04-29 Hartmut Flaig Mounting nut for exhaust manifold and internal combustion engine
WO2019020589A1 (en) 2017-07-26 2019-01-31 Bayerische Motoren Werke Aktiengesellschaft FASTENING NUT AND COMBUSTION ENGINE WITH FIXING NUT

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20030522

R150 Utility model maintained after payment of first maintenance fee after three years

Effective date: 20060630

R151 Utility model maintained after payment of second maintenance fee after six years

Effective date: 20090327

R152 Utility model maintained after payment of third maintenance fee after eight years

Effective date: 20100929

R071 Expiry of right
R071 Expiry of right