Snap fastener with a safety lock

Details Snap fastener with a safety lock Snap fastener with a safety lock

1997-01-24

1998-09-29

Sakran, Victor N.

Buckles, buttons, clasps, etc.

Separable-fastener or required component thereof

With third detached member completing interlock

24297, 24453, 411509, A44B 1700, F16B 2100

Patent

active

058130969

ABSTRACT:
A snap fastener for securing two structural components to each other has a fastener section with a head and stem with at least one axial slot (6, 7) in the stem opposite the head to form snap-on members (3A, 3B, . . . ) spaced by the slot (6, 7) in the stem (S). A washer fits over the snap-on members around the stem when the snap-on members are pressed toward each other. The locking members have shoulders (4) that engage the washer and form the snap-on connection. A locking bail (12) fits with a central portion into the slot so that the snap-on members cannot be pressed together anymore, thereby preventing the unlocking. The locking bail has at least one locking hook (15 or 16) that engages the washer so that the central portion (13) of the locking bail (12) cannot escape out of the slot. The locking hook can be intentionally disengaged against its elasticity for removing the snap fastener.

REFERENCES:
patent: 1978087 (1934-10-01), Johnson
patent: 3551963 (1971-01-01), Mosher, Jr. et al.
patent: 3803670 (1974-04-01), Johnson
patent: 4559679 (1985-12-01), Downey
patent: 5329676 (1994-07-01), Kobayashi

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