DE29920292U1 - Improve the structure of a screw - Google Patents

Improve the structure of a screw

Info

Publication number
DE29920292U1
DE29920292U1 DE29920292U DE29920292U DE29920292U1 DE 29920292 U1 DE29920292 U1 DE 29920292U1 DE 29920292 U DE29920292 U DE 29920292U DE 29920292 U DE29920292 U DE 29920292U DE 29920292 U1 DE29920292 U1 DE 29920292U1
Authority
DE
Germany
Prior art keywords
spiral
screw
thread
tips
improve
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 - Lifetime
Application number
DE29920292U
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE29920292U priority Critical patent/DE29920292U1/en
Publication of DE29920292U1 publication Critical patent/DE29920292U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • F16B25/0015—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 a soft organic material, e.g. wood or plastic
    • 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
    • F16B25/0052—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 having indentations, notches or the like in order to improve the cutting behaviour

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (2)

1. Schraube (2), gekennzeichnet durch einen oberen Abschnitt, der mit einem spiralförmigen, kreisförmigen Gewinde (21) versehen ist, und einem unteren Abschnitt, der mit einem spiralförmigen, dreieckigen Gewinde (22) versehen ist, wobei das spiralförmige, dreieckige Gewinde (22) drei scharfe Kanten und drei Spitzen (221) besitzt, wobei die Spitzen (221) des spiralförmigen, dreieckigen Gewindes (22) an unterschiedlichen Positionen angeordnet sind.1. screw ( 2 ), characterized by an upper section, which is provided with a spiral, circular thread ( 21 ), and a lower section, which is provided with a spiral, triangular thread ( 22 ), the spiral, triangular thread ( 22 ) has three sharp edges and three tips ( 221 ), the tips ( 221 ) of the spiral, triangular thread ( 22 ) being arranged at different positions. 2. Schraube (2), gekennzeichnet durch einen oberen Abschnitt, der mit einem spiralförmigen, kreisförmigen Gewinde (21) versehen ist, und einem unteren Abschnitt, der mit einem spiralförmigen, dreieckigen Gewinde (22) versehen ist, wobei das spiralförmige, dreieckige Gewinde (22) drei scharfe Kanten und drei Spitzen (221) besitzt, wobei die Spitzen (221) des spiralförmigen, dreieckigen Gewindes (22) aufeinander ausgerichtet angeordnet sind.2. Screw ( 2 ), characterized by an upper section, which is provided with a spiral, circular thread ( 21 ), and a lower section, which is provided with a spiral, triangular thread ( 22 ), the spiral, triangular thread ( 22 ) has three sharp edges and three tips ( 221 ), the tips ( 221 ) of the spiral, triangular thread ( 22 ) being arranged in alignment with one another.
DE29920292U 1999-11-18 1999-11-18 Improve the structure of a screw Expired - Lifetime DE29920292U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29920292U DE29920292U1 (en) 1999-11-18 1999-11-18 Improve the structure of a screw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29920292U DE29920292U1 (en) 1999-11-18 1999-11-18 Improve the structure of a screw

Publications (1)

Publication Number Publication Date
DE29920292U1 true DE29920292U1 (en) 2000-03-09

Family

ID=8081791

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29920292U Expired - Lifetime DE29920292U1 (en) 1999-11-18 1999-11-18 Improve the structure of a screw

Country Status (1)

Country Link
DE (1) DE29920292U1 (en)

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20000413

R150 Term of protection extended to 6 years

Effective date: 20021216

R157 Lapse of ip right after 6 years

Effective date: 20060601