A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
There is disclosed a screw (10) comprising a shank (14) having a head (12) at one end and a cutting tip (16) at the other end. A thread (15) is formed on the shank (14) and extends at least partially between the head (12) and the cutting tip (16). At least one wing member (20) is provided on the shank (14) between the head (12) and the thread (15). The at least one wing member (20) comprises a body that extends radially from the shank (14) to terminate in a distal end face (23). The distal end face (23) of the body is configured to provide a first cutting edge (23a) that extends along a leading edge thereof. The body further comprises a second cutting edge (24a) extending along a leading edge of a lower face (24) of the body. The lower face (24) of the body extending from a lower end of the distal end face (23) to the shank (14).
There is disclosed a screw (10) comprising a shank (14) having a head (12) at one end and a cutting tip (16) at the other end. A thread (15) is formed on the shank (14) and extends at least partially between the head (12) and the cutting tip (16). At least one wing member (20) is provided on the shank (14) between the head (12) and the thread (15). The at least one wing member (20) comprises a body that extends radially from the shank (14) to terminate in a distal end face (23). The distal end face (23) of the body is configured to provide a first cutting edge (23a) that extends along a leading edge thereof. The body further comprises a second cutting edge (24a) extending along a leading edge of a lower face (24) of the body. The lower face (24) of the body extending from a lower end of the distal end face (23) to the shank (14).
A Cutting Screw
LOI TO HA (author)
2022-02-17
Patent
Electronic Resource
English
IPC:
F16B
DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES
,
Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile
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E04D
ROOF COVERINGS
,
Dacheindeckungen