F - Mech Eng,Light,Heat,Weapons – 16 – D
Patent
F - Mech Eng,Light,Heat,Weapons
16
D
F16D 65/04 (2006.01) F16D 65/06 (2006.01)
Patent
CA 2180401
A brake shoe locking key is provided with a retention tab that is saw-tooth shaped and extends across the entire width of the key shank. The retention tab is upraised from the shank more than the correspondingly-shaped serrations typically formed on the bottom of the key and is thus more effective in engaging the brake head as an initial detent to prevent the key from backing out of the keyhole in the brake head when a loose fitting key fails to retain its locking position. In addition, the retention tab is adapted to engage the keybridge at the orifice through which the key passes in order to provide a further detent to prevent a loose key from backing completely out of its locking connection between the brake head and brake shoe, in the event the first detent fails to engage.
Clavette de semelle de frein avec patte de retenue pliée en dents de scie et de largeur égale à celle de la clavette. La patte de retenue forme une saillie plus importante par rapport à la tige de la clavette que les plis de forme correspondante normalement pratiqués à la partie inférieure de cette dernière, de sorte qu'elle est plus efficace pour accrocher le porte-semelle et empêcher la clavette de sortir de son logement lorsqu'elle n'est plus bien ajustée. En outre, la patte de retenue est conçue pour buter contre la rive de l'orifice dans lequel passe la clavette, offrant ainsi un deuxième mécanisme de protection contre le retrait intempestif de la clavette, en cas de défaillance du premier mécanisme.
Macrae & Co.
Westinghouse Air Brake Company
LandOfFree
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