DE8608617U1 - Screw with captive washer - Google Patents

Screw with captive washer

Info

Publication number
DE8608617U1
DE8608617U1 DE19868608617 DE8608617U DE8608617U1 DE 8608617 U1 DE8608617 U1 DE 8608617U1 DE 19868608617 DE19868608617 DE 19868608617 DE 8608617 U DE8608617 U DE 8608617U DE 8608617 U1 DE8608617 U1 DE 8608617U1
Authority
DE
Germany
Prior art keywords
screw
washer
ring
captive washer
captive
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
Application number
DE19868608617
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.)
GEISSER CARL ZUERICH CH
Original Assignee
GEISSER CARL ZUERICH CH
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 GEISSER CARL ZUERICH CH filed Critical GEISSER CARL ZUERICH CH
Publication of DE8608617U1 publication Critical patent/DE8608617U1/en
Expired 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
    • F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
    • F16B43/001—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts for sealing or insulation
    • 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
    • F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
    • 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
    • F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
    • F16B41/002—Measures against loss of bolts, nuts or pins

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bolts, Nuts, And Washers (AREA)

Description

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Schraube mit unverlierbarer UnterlagsscheibeScrew with captive washer

Aus der DE-OS 31 35 408 ist eine Schraube mit einer unverlierbaren Unterlagsscheibe bekannt, bei welcher die Scheibe auf dem Schraubenschaft durch eine, aufgeschrumpfte, formstabil mit dem Schaft verbundene Kunststoffhülse gehalten ist. Die Montage dieser Kombination ist aufwendig.From DE-OS 31 35 408 a screw with a captive Washer known in which the washer is dimensionally stable on the screw shank by a shrunk-on plastic sleeve connected to the shaft is held. The assembly of this combination is complex.

Die Aufgabe der Neuerung besteht darinr eine Schraube mit unverlierbarer Unterlagsscheibe derart auszubilden, dass sie billig herstellbar und einfach vorzumontieren ist. Diese Aufgabe wird durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst.The object of the innovation is r a screw with captive washer form such that it is inexpensive to manufacture and easy to pre-assemble. This object is achieved by the characterizing features of claim 1.

Durch den gummielastischen O-Ring ist die Vormontage der Unterlagsscheibe auf der Schraube sehr einfach, weil keine Aufschrumpf- oder Klebeoperationen erforderlich sind. Ausserdem wirkt der Ring als zusätzliche Schraubensicherung und darüber hinaus als Dichtring, so dass die neuerungsgemässe Schraube vielseitig einsetzbar ist, insbesondere auch in Montageäutomäten. The washer is preassembled through the rubber-elastic O-ring very easy on the screw because no shrinking or gluing operations are required. Besides that the ring acts as an additional screw lock and also as a sealing ring, so that the innovation Screw is versatile, especially in assembly machines.

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Nachfolgend wird ein Ausführungsbeispiel der Neuerung an- ί hand der Zeichnung beschrieben. Darin zeigt: !An exemplary embodiment of the innovation is presented below hand of the drawing. It shows:!

Fig. 1 eine Schraube mit Unterlagsscheibe/ und \ Fig. 1 a screw with washer / and \

Fig. 2 einen Teilschnitt der Schraube nach Fig. 1 in iFIG. 2 shows a partial section of the screw according to FIG. 1 in i

montiertem Zustand in vergrossertem Mässstäb. : assembled condition in enlarged scale. :

i Die dargestellte Schraube 1 hat einen Kopf 4 und einen Schaft ]i The screw 1 shown has a head 4 and a shaft]

5. Eine als gerippte Federscheibe 2 ausgebildete Unterlagsscheibe ist durch einen vorgespannten O-Ring 3 aus einem ' Elastomer auf dem Schaft 5 gehalten. In Fig. 2 ist darge- , stellt, wie mit einer solchen Schraube eine Platte 6 auf , einer Unterlage 7 festgespannt ist. Im montierten Zustand : ist die Scheibe 2 flachgedrückt und der O-Ring 3 in den Spalt
zwischen Schaft 5 und Platte 6 sowie Scheibe 2 gequetscht.5. A washer designed as a ribbed spring washer 2 is held on the shaft 5 by a pretensioned O-ring 3 made of an elastomer. FIG. 2 shows how a plate 6 is clamped onto a base 7 with such a screw. In the assembled state: the washer 2 is pressed flat and the O-ring 3 is in the gap
squeezed between shaft 5 and plate 6 and disk 2.

Er wirkt daher als Abdichtung und zusätzliche Schraubensi- · cherung. Statt eines O-Rings eignet sich auch ein elastome- \ rer Ring mit vierkantigem Querschnitt.He therefore acts as a seal and additional screw joints · insurance. Instead of an O-ring is also a elastome- \ rer ring with quadrangular cross-section is suitable.

Claims (3)

.· ■·: ' : :. 4 ι:-:: :ig. März 1986 Carl Geisser CH-8047 Zürich Schutzansprüche. · ■ ·: '::. 4 ι: - ::: ig. March 1986 Carl Geisser CH-8047 Zurich Protection claims 1. Schraube (1) mit unverlierbarer Unterlagsscheibe (2), dadurch gekennzeichnet, dass die Schreibe (2) durch einen elastomere ra O-Ring (3) auf der Schraube (1) gehalten ist.1. Screw (1) with a captive washer (2), characterized in that the writing (2) through an elastomer ra O-ring (3) held on the screw (1) is. 2. Schraube nach Anspruch 1, dadurch gekennzeichnet, dass die Unterlagsscheibe (2) als gerippte Federscheibe ausgebildet ist.2. Screw according to claim 1, characterized in that the washer (2) is designed as a ribbed spring washer is. 3. Schraube nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß zwischen der Scheibe (2) und dem Schraubenschaft (5) ein Ringspalt besteht, dessen Weite im Verhältnis zum Querschnitt des O-Rings (3) so groß bemessen ist, daß dieser nach Verformung ganz oder teilweise vom Ringspalt aufnehmbar ist.3. Screw according to claim 1 or 2, characterized in that between the disc (2) and the screw shank (5) there is an annular gap, the width of which is so large in relation to the cross-section of the O-ring (3), that this can be wholly or partially absorbed by the annular gap after deformation. (I Il * ■ · i ti I lit 4 ■ · a · ι t (I Il * ■ · i ti I lit 4 ■ · a · ι t »· it* Λ ■ ·4 tit t »· It * Λ ■ · 4 tit t I « I « «II «I« «I
DE19868608617 1985-04-16 1986-03-29 Screw with captive washer Expired DE8608617U1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH165385A CH665887A5 (en) 1985-04-16 1985-04-16 SCREW WITH CAPTIVE WASHER.

Publications (1)

Publication Number Publication Date
DE8608617U1 true DE8608617U1 (en) 1986-07-31

Family

ID=4215491

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19868608617 Expired DE8608617U1 (en) 1985-04-16 1986-03-29 Screw with captive washer

Country Status (4)

Country Link
CH (1) CH665887A5 (en)
DE (1) DE8608617U1 (en)
FR (1) FR2580346A1 (en)
IT (1) IT207011Z2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1452436A2 (en) * 2003-02-27 2004-09-01 Shimano Inc. Bicycle derailleur

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5518768A (en) * 1995-02-03 1996-05-21 Nd Industries, Inc. Method and apparatus for making retaining elements
FR2838168B1 (en) * 2002-04-09 2006-07-07 Emery Sa IMPERFITABLE SCREW FOR SNOW SURF MOUNTING

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2176411A (en) * 1938-09-15 1939-10-17 Philadelphia Steel And Wire Co Assembled lock washer and bolt, screw, or the like
DE1881801U (en) * 1963-06-25 1963-10-31 Theodor Rapp K G WASHER LOCK.
GB1478462A (en) * 1974-11-06 1977-06-29 Gkn Bolts Nuts Ltd Captive washer for fastener assembly
CA1031612A (en) * 1975-09-29 1978-05-23 Pierre C. Murray Sealing washer unit
GB2129085B (en) * 1982-10-26 1986-02-12 British Screw Co Ltd Fastener and seal combination

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1452436A2 (en) * 2003-02-27 2004-09-01 Shimano Inc. Bicycle derailleur
EP1452436A3 (en) * 2003-02-27 2005-07-20 Shimano Inc. Bicycle derailleur

Also Published As

Publication number Publication date
IT207011Z2 (en) 1987-10-26
IT8621517V0 (en) 1986-04-11
CH665887A5 (en) 1988-06-15
FR2580346A1 (en) 1986-10-17

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