CH106594A - Wood screw. - Google Patents

Wood screw.

Info

Publication number
CH106594A
CH106594A CH106594DA CH106594A CH 106594 A CH106594 A CH 106594A CH 106594D A CH106594D A CH 106594DA CH 106594 A CH106594 A CH 106594A
Authority
CH
Switzerland
Prior art keywords
screw
wood
head
wood screw
cutting
Prior art date
Application number
Other languages
German (de)
Inventor
Sidler Emil
Original Assignee
Sidler Emil
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 Sidler Emil filed Critical Sidler Emil
Publication of CH106594A publication Critical patent/CH106594A/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F16B35/06Specially-shaped heads
    • F16B35/065Specially-shaped heads with self-countersink-cutting means

Description

  

  Holzschraube.    Gegenstand vorliegender Erfindung ist eine  Holzschraube mit     Versenkkopff    welcher mit  einem Schneidwerk ausgestattet ist, das beim  Einführen der Schraube- in das Holz aus  diesem eine Vertiefung herausarbeitet, in die  der Schraubenkopf zu liegen kommt.  



  Auf der beiliegenden Zeichnung ist ein  Ausführungsbeispiel des Erfindungsgegenstan  des dargestellt und zwar zeigt:       Fig.    1 eine Längsansicht desselben,       Fig.    2 eine Endansicht von der Spitze  des Schraubenbolzens her gesehen;       Fig.    3 einen Schnitt durch den Schrauben  kopf nach der Linie     A-A    der     Fig.    1.  



  a bezeichnet einen Schraubenschaft mit  dem     Versenkkopf        b.    Dieser besitzt auf der  in die Versenkung einzuführenden untern  Seite vier vom Schraubenschaft aus nach  aussen gehende Nuten c. Die eine Kante  einer jeden Nute ist leicht erhöht und als  Schneide d ausgebildet.     Mittelst    den Schneiden  d wird beim Einführen der Schraube in das  Holz aus diesem eine Versenkung herausge  arbeitet, in welche der Schraubenkopf     b    zu  liegen kommt. Die Schneiden d reichen nicht  ganz bis an den Umfang des Schraubenkopfes  b heran. Damit wird bezweckt, dass die vom    Schneidwerk ausgefräste =Vertiefung nicht zu  gross ausfällt.



  Wood screw. The subject of the present invention is a wood screw with a countersunk head which is equipped with a cutting mechanism which, when the screw is inserted into the wood, creates a recess in which the screw head comes to rest.



  In the accompanying drawing, an embodiment of the subject invention is shown, namely: Figure 1 is a longitudinal view of the same, Figure 2 is an end view seen from the tip of the screw bolt; Fig. 3 is a section through the screw head along the line A-A of FIG.



  a denotes a screw shaft with countersunk head b. This has on the lower side to be inserted into the countersink four grooves c extending outwards from the screw shaft. One edge of each groove is slightly raised and designed as a cutting edge d. By means of the cutting edges d, when the screw is inserted into the wood, a countersink is made out of this, in which the screw head b comes to rest. The cutting edges d do not quite reach the circumference of the screw head b. The purpose of this is to ensure that the recess milled out by the cutting unit is not too large.

 

Claims (1)

PATENTANSPRUCH: Holzschraube mit Versenkkopf, dadurch gekennzeichnet, dass letzterer mit einem Schneidwerk ausgestattet ist, welches beim Einführen der Schraube in das Holz aus die sem eine Vertiefung für die Aufnahme des Schraubenkopfes herausarbeitet. UNTERANSPRüCHE 1. Holzschraube nach Patentansprueh, da durch gekennzeichnet, dass der Versenk kopf vom Schraubenschaft aus nach aussen gehende Nuten aufweist, deren eine Kante erhöht und als Schneide ausgebildet ist. 2. Holzschraube nach Patentanspruch und Unteranspruch 1, dadurch gekennzeichnet, dass die Schneiden nicht ganz bis an den Umfang des Schraubenkopfes heranreichen, wodurch ein zu grosses Ausfräsen der Ver senkung verhindert wird. PATENT CLAIM: Wood screw with countersunk head, characterized in that the latter is equipped with a cutting mechanism which, when the screw is inserted into the wood, works out a recess for receiving the screw head from this. SUBClaims 1. Wood screw according to patent claim, characterized in that the countersunk head has grooves extending outwards from the screw shaft, one edge of which is raised and designed as a cutting edge. 2. Wood screw according to claim and dependent claim 1, characterized in that the cutting edges do not reach all the way up to the circumference of the screw head, which prevents excessive milling of the United countersink.
CH106594D 1923-11-13 1923-11-13 Wood screw. CH106594A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH106594T 1923-11-13

Publications (1)

Publication Number Publication Date
CH106594A true CH106594A (en) 1924-09-01

Family

ID=4365483

Family Applications (1)

Application Number Title Priority Date Filing Date
CH106594D CH106594A (en) 1923-11-13 1923-11-13 Wood screw.

Country Status (1)

Country Link
CH (1) CH106594A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2619556A (en) * 1949-04-18 1952-11-25 Eugene F Haubert Distributor
DE887586C (en) * 1951-10-30 1953-08-24 Fritz Herfurth Unbreakable countersunk wood screw
DE3143120A1 (en) * 1981-10-30 1983-05-11 Wilhelm 5820 Gevelsberg Bieker Cap screw for screwing boards on, especially gypsum fibre boards
EP0268961A1 (en) * 1986-11-22 1988-06-01 Peri-Werk Artur Schwörer GmbH & Co.KG Countersunk head screw
FR2725252A1 (en) * 1994-10-04 1996-04-05 Vynex Sa HEAD SCREW WITH SELF-DRILLING HEAD

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2619556A (en) * 1949-04-18 1952-11-25 Eugene F Haubert Distributor
DE887586C (en) * 1951-10-30 1953-08-24 Fritz Herfurth Unbreakable countersunk wood screw
DE3143120A1 (en) * 1981-10-30 1983-05-11 Wilhelm 5820 Gevelsberg Bieker Cap screw for screwing boards on, especially gypsum fibre boards
EP0268961A1 (en) * 1986-11-22 1988-06-01 Peri-Werk Artur Schwörer GmbH & Co.KG Countersunk head screw
FR2725252A1 (en) * 1994-10-04 1996-04-05 Vynex Sa HEAD SCREW WITH SELF-DRILLING HEAD
EP0705987A1 (en) * 1994-10-04 1996-04-10 Vynex S.A. Self-cutting drilled screw head

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