CH204582A - Vis à métaux. - Google Patents

Vis à métaux.

Info

Publication number
CH204582A
CH204582A CH204582DA CH204582A CH 204582 A CH204582 A CH 204582A CH 204582D A CH204582D A CH 204582DA CH 204582 A CH204582 A CH 204582A
Authority
CH
Switzerland
Prior art keywords
screw
machine screws
tapping
threads
threaded rod
Prior art date
Application number
Other languages
English (en)
Inventor
Sfaellos Theo
Original Assignee
Sfaellos Theo
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 Sfaellos Theo filed Critical Sfaellos Theo
Publication of CH204582A publication Critical patent/CH204582A/fr

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
    • F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
    • F16B25/001—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed
    • F16B25/0021—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed the material being metal, e.g. sheet-metal or aluminium
    • 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
    • F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
    • F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
    • F16B25/0042—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw
    • F16B25/0047—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw the ridge being characterised by its cross-section in the plane of the shaft axis
    • 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
    • F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
    • F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
    • F16B25/0042—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw
    • F16B25/0057—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw the screw having distinct axial zones, e.g. multiple axial thread sections with different pitch or thread cross-sections

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Yis ä metaug. L'invention a pour objet une vis. ä me- taug qui est caracteris6e en ce que sa tige file- tk presente, sur une Partie de sa longueur, plusieurs paus longitudinaux abattant les fi- lets dans cette Partie, de maniere que cette Partie ait pour effet de tarauder un trou lisse pr6vu dans la piöce m6tallique destink ä re- cevoir la vis lors de la Premiere mixe en place de cette vis.
La vis selon 1'invention offre 1'avantage quelle remplit elle-meme la fonction @du ta- raud et evite ainsi 1e tmaudage prealable du trau ä 1'aide d'un taraud.
Le dessin annexe montre, ä, titre d'exem- ple, une forme d'exkution de 1'objet de 1'in- venHon.
La fig. 1 repr4ente cette forme Consti- tu6e par une vie ä tete, vue en elevation de face; les fig. 2 et 3 sont deux coupes suivant les lignes II-II, respectivement III-III de la fig. 1; Ja fig. 4 montre cette vis vue en e16va- tion, mais tournk de 90 par räpport ä la p osi itian de <B>,</B> la fig. 1, et engagk dann une pike m@Mallique.
La vis ä tete repr6sentk comprend une ehe 6 et une tige fileUe 7, ä filet triangu- laire. La Partie superieure de la tige 7 est cy- lindrique at comprend quelques filets com- plets, tandis que toute la Partie mediane et inferieure de la tige est 16gerement conique et prbsente quatre pans longitttdinaux dispo- ses suivant les faces dune Pyramide carrk, 1'extremite de 1a, tige kant pointue.
Les paus 8 abattent les filets dans la Par tie de la tige qu'ils int6ressent, ce qui a pour effet que cette Partie opere ä la manike d'un taraud, Tors de la Premiere mise en place de 1a. vis, en taraudant 1e trou cylindrique et Esse 9 destine ä recevoir la vis, comme re- pr6sent6 en fig. 4.
La tige pourrait comporter plus ou moins de Pans, par exemple trois ou plus de quatre. La vis; ä metaux dkrite peut etre fabri- qu6e avec ou sans tete, en partant, par exem- pie, dune vis normale ä, filet triangulaire, sur la tige filetée de laquelle on taillerait les pans.

Claims (1)

  1. REVENDICATION: Vis à métaux, caractérisée en ce que sa tige filetée présente, sur une partie de sa lon gueur, plusieurs pans longitudinaux abattant les filets dans cette partie, de manière que cette partie ait pour effet de tarauder un trou lisse prévu dans la pièce métallique des-, tinée à recevoir la vis lors de la première mise en place de cette vis.
CH204582D 1938-07-16 1938-07-16 Vis à métaux. CH204582A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH204582T 1938-07-16

Publications (1)

Publication Number Publication Date
CH204582A true CH204582A (fr) 1939-05-15

Family

ID=4444236

Family Applications (1)

Application Number Title Priority Date Filing Date
CH204582D CH204582A (fr) 1938-07-16 1938-07-16 Vis à métaux.

Country Status (1)

Country Link
CH (1) CH204582A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3398625A (en) * 1965-10-22 1968-08-27 Robertson Mfg Co Self-tapping screw

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3398625A (en) * 1965-10-22 1968-08-27 Robertson Mfg Co Self-tapping screw

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