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1. (WO1979001050) EXPANSION NAILS,EXPANDING AT ONE OR MORE PLACES AFTER BEING DRIVEN IN
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1979/001050 International Application No.: PCT/SE1979/000057
Publication Date: 29.11.1979 International Filing Date: 15.03.1979
IPC:
F16B 15/04 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
B
DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
15
Nails; Staples
04
with spreading shaft
Applicants:
Inventors:
Priority Data:
780307311.05.1978SE
Title (EN) EXPANSION NAILS,EXPANDING AT ONE OR MORE PLACES AFTER BEING DRIVEN IN
(FR) CHEVILLES A EXPANSION, S"OUVRANT EN UN OU PLUSIEURS ENDROITS UNE FOIS ENFONCEES
Abstract:
(EN) Nail (1) for joining two or more pieces (4, 5) of wood, board or other porous or soft material. The nail strengthens the joint by expanding at one or more places inside the material when being driven in which is achieved by the nail having one or more longitudinal, local slits (2) of which preferably at least one at a pointed portion (3) of the nail. Each slit is on either side defined by portions being slightly bent outwards and capable of bulging further outwardly without rupture. When the nail (1) has been driven to its final position further blows atone of the ends of the nail and using a suitable hold-up tool (6) the side portions of the slit expand by further bulging and simultaneously the length of the nail is shortened.
(FR) Cheville (1) d"assemblage de deux ou plusieurs pieces (4, 5) en bois, planches ou autre materiau poreux ou tendre. Le cheville renforce l"assemblage en s"ouvrant en un ou plusieurs endroits a l"interieur du materiau lorsqu"elle est enfoncee, expansion qui se produit a l"aide d"une ou plusieurs fentes longitudinales (2) amenagees dans la cheville, dont l"une au moins se trouve a une partie pointue de celle-ci. Chaque fente est definie de chaque cote par des parties legerement courbees vers l"exterieur et pouvant faire saillie encore plus vers l"exterieur sans se casser. Lorsque la cheville (1) est enfoncee dans sa position finale, des coups supple
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
SU01103803