DE7220962U - Unsolvable screw - Google Patents

Unsolvable screw

Info

Publication number
DE7220962U
DE7220962U DE19727220962 DE7220962U DE7220962U DE 7220962 U DE7220962 U DE 7220962U DE 19727220962 DE19727220962 DE 19727220962 DE 7220962 U DE7220962 U DE 7220962U DE 7220962 U DE7220962 U DE 7220962U
Authority
DE
Germany
Prior art keywords
screw
head
head part
possibility
pin
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
DE19727220962
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.)
NUESSEL H
Original Assignee
NUESSEL H
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 NUESSEL H filed Critical NUESSEL H
Priority to DE19727220962 priority Critical patent/DE7220962U/en
Publication of DE7220962U publication Critical patent/DE7220962U/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
    • F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
    • F16B41/005—Measures against unauthorised operation of bolts, nuts or pins
    • 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
    • F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
    • F16B31/02—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load
    • F16B31/021—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load by means of a frangible part

Landscapes

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

Description

Schutzanspruohι Protection claim ι

Unlösbare Schraube dadurch gekennzeichnet,dass der Schraubenkopf aus zwei Teilen besteht,die stiftförmig miteinander verbunden sind,wobei durch übersteigertes Anziehen der Schraube der Stift abbricht und der obere Kopfteil abfällt,sodass die Schraube nicht mehr gedreht werden^Kann.Permanent screw characterized in that the screw head consists of two parts that are connected to each other in the shape of a pin by excessive tightening of the screw the pin breaks off and the top part of the head falls off, so that the Screw can no longer be turned ^ Can.

7220912-11.7»7220912-11.7 »

Claims (4)

Hann* N ti β 8 tbW^bO&i, PUohlfiiik14obere Lagerstraace 15 'Hann * N ti β 8 tbW ^ bO & i , PUohlfiiik 14 upper bearing street 15 ' unlösbare Schraubepermanent screw Se ist oft unerwünscht,dass Sehraubverbindungen wieder gelöst werden können.Die vorliegende Erfindung schliesst diese Möglichkeit dadurch aus, dass eine Schraube zwei Kopfteil«» besitzt ,die durch ein stiftartiges Mittelteil verbunden sind.Wenn die eingedrehte Schraube festsitzt,wird durch eine weitere Drehung der Stift abgeschert u&d der obere Kopfteil fällt ab.Dadurch besteht keine Möglichkeit mehr,die Schraube zurückzudrehen. Die Zeichnung; gibt als Anvendungsbeispiel mit Ziff. 1 und 2 den oberen und unteren Kopfteil wieder mit dem Gewinde It is often undesirable that very robbery connections are loosened again The present invention eliminates this possibility characterized in that a screw has two head parts «» that are connected by a pin-like middle part If the screw is stuck, turn the The pin sheared off and the upper part of the head falls off no more possibility to turn back the screw. The drawing; gives as an application example with numbers 1 and 2 the top and bottom head part again with the thread 4.Mit Ziff.3 ist die Verbindung der beiden Kopfteile 1 und 2 bezeichnet. Bei eingedrehter Schraube schliesst der mit dem Gewinde verbundene Kopfteil 2 mit der Cbene A-B ab,di^/gleich ^s%^de:r Sbe&e4. With point 3 the connection of the two head parts 1 and 2 is designated. When the screw is screwed in, the head part 2 connected to the thread ends with the plane A-B, di ^ / equal to ^ s% ^ de: r Sbe & e des durch die Schraube verbundenen Gegenstandes. ' 7 ■ - «j . Iof the object connected by the screw. '7 ■ - «j. I. Es ist für den Erfindungegedanken unerheblich,ob der obere Kopfteil durch einen Schraubenzieher oder einen Schraubenschlüssel angezogen wird,oder ob der untere Kopfteil als Senkkopf ausgebildet ist.It is irrelevant for the concept of the invention whether the upper head part is tightened by a screwdriver or a wrench, or whether the lower head part is designed as a countersunk head is.
DE19727220962 1972-06-05 1972-06-05 Unsolvable screw Expired DE7220962U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19727220962 DE7220962U (en) 1972-06-05 1972-06-05 Unsolvable screw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19727220962 DE7220962U (en) 1972-06-05 1972-06-05 Unsolvable screw

Publications (1)

Publication Number Publication Date
DE7220962U true DE7220962U (en) 1973-02-08

Family

ID=6630729

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19727220962 Expired DE7220962U (en) 1972-06-05 1972-06-05 Unsolvable screw

Country Status (1)

Country Link
DE (1) DE7220962U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2625142A1 (en) * 1976-06-04 1977-12-15 Bosch Gmbh Robert Removal resistant screw fastening - has weakened connection to shear off hexagon head at preset tightening torque
DE19633512A1 (en) * 1996-08-20 1998-02-26 Kopschina Andreas Screw for do-it-yourself home security

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2625142A1 (en) * 1976-06-04 1977-12-15 Bosch Gmbh Robert Removal resistant screw fastening - has weakened connection to shear off hexagon head at preset tightening torque
DE19633512A1 (en) * 1996-08-20 1998-02-26 Kopschina Andreas Screw for do-it-yourself home security

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