DE158599C - - Google Patents

Info

Publication number
DE158599C
DE158599C DENDAT158599D DE158599DA DE158599C DE 158599 C DE158599 C DE 158599C DE NDAT158599 D DENDAT158599 D DE NDAT158599D DE 158599D A DE158599D A DE 158599DA DE 158599 C DE158599 C DE 158599C
Authority
DE
Germany
Prior art keywords
screwdriver
screw head
screw
slot
head
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.)
Active
Application number
DENDAT158599D
Other languages
German (de)
Publication of DE158599C publication Critical patent/DE158599C/de
Active 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
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
    • F16B23/0015—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool substantially rectangular, e.g. one-slot head

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Die meisten der bisherigen Ausgestaltungen von Schraubenköpfen haben, zumal beim Hineindrehen in hartes Holz, den Übelstand, daß der Schraubenzieher beim Ausgleiten aus dem Triebschlitz einen splittrigen, hakigen Grat erzeugt, welcher nicht allein den Triebwiderstand verringert und die Schraube für das Nachziehen oder die Wiederverwendung unbrauchbar macht, sondern besonders beiMost of the previous designs of screw heads have, especially when Screwing it into hard wood, the disadvantage that the screwdriver comes out when slipping The shoot creates a splintery, hooked ridge, which not only creates the resistance to the shoot and makes the screw unusable for retightening or reuse, but especially with

ίο Straßenbahnwagen und dergl. an den Kleidern der Fahrgäste Schaden anrichtet.ίο Tram cars and the like on clothes the passengers cause damage.

Diesen Übelstand beseitigt die vorliegende Erfindung dadurch, daß der Schraubenkopf einen erhöhten Rand, eine Wulst oder ähnliehe Anordnung erhält, welche den Kopf verstärkt und den Triebschlitz schützt. Hierdurch erlangt der Schraubenzieher festen Sitz, wird am seitlichen Ausbrechen behindert, und der scharfkantige, hakige Schlitz wird überdeckt.This drawback eliminates the present invention in that the screw head a raised edge, a bulge or similar arrangement is given, which the head reinforced and protects the drive slot. This makes the screwdriver firm Seat, is hindered from breaking out to the side, and the sharp-edged, hooked slit becomes covered.

Um die Sicherung zu erhöhen, kann ein seitlich vertiefter Bogenschlitz mit entsprechend gestaltetem Schraubenzieher angewendet werden; sowohl der bogig angeordnete als der gerade Triebschlitz können auch den ganzen Schraubenkopf durchqueren.In order to increase the security, a laterally recessed arched slot can be used accordingly designed screwdriver can be used; both the curved and the straight drive slot can also use the cross the entire screw head.

Fig. ι und 3 zeigen Ansicht und Schnitt des versenkten Bogenschlitzes 1 mit Schutzwulst 2 am schrägen und rechtwinkligen Schraubenkopf, Fig. 2 und 4 die gleiche An-Ordnung in Bogenvertiefung des Schraubenkopfes. Fig· 5 zeigt den entsprechenden Schraubenzieher mit flacher und runder Einsatzschneide. Fig. Ι and 3 show a view and section of the sunk arcuate slot 1 with protective bead 2 on the oblique and right-angled screw head, Fig. 2 and 4 the same order in the arch recess of the screw head. Fig. 5 shows the corresponding one Screwdriver with flat and round insert cutting edge.

Claims (1)

Patent-Anspruch:Patent claim: Holzschraube, dadurch gekennzeichnet, daß der Triebschlitz des Schraubenkopfes durch eine Wulst oder Randerhöhung geschützt ist.Wood screw, characterized in that the drive slot of the screw head is protected by a bead or raised edge. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT158599D Active DE158599C (en)

Publications (1)

Publication Number Publication Date
DE158599C true DE158599C (en)

Family

ID=424764

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT158599D Active DE158599C (en)

Country Status (1)

Country Link
DE (1) DE158599C (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2556155A (en) * 1946-07-13 1951-06-05 Domnic V Stellin Socket head screw
US2826231A (en) * 1953-09-03 1958-03-11 Alden Milton Screw mounting bracket for sheet metal and screw held captive therein
US2996943A (en) * 1956-12-24 1961-08-22 Clyde C Johnson Carpentry screw
DE1215235B (en) * 1957-10-11 1966-04-28 Josef Eisert Switchgear terminal block with movable connector for cross-bridges and. like
US5203657A (en) * 1991-05-29 1993-04-20 Topura Co., Ltd. Self-tapping screw
US5205694A (en) * 1991-05-29 1993-04-27 Topura Co., Ltd. Self-tapping screw
US5249882A (en) * 1991-05-29 1993-10-05 Topura Co., Ltd. Self-tapping screw

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2556155A (en) * 1946-07-13 1951-06-05 Domnic V Stellin Socket head screw
US2826231A (en) * 1953-09-03 1958-03-11 Alden Milton Screw mounting bracket for sheet metal and screw held captive therein
US2996943A (en) * 1956-12-24 1961-08-22 Clyde C Johnson Carpentry screw
DE1215235B (en) * 1957-10-11 1966-04-28 Josef Eisert Switchgear terminal block with movable connector for cross-bridges and. like
US5203657A (en) * 1991-05-29 1993-04-20 Topura Co., Ltd. Self-tapping screw
US5205694A (en) * 1991-05-29 1993-04-27 Topura Co., Ltd. Self-tapping screw
US5249882A (en) * 1991-05-29 1993-10-05 Topura Co., Ltd. Self-tapping screw

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