Disk-indexing mechanism for powder-actuated tool abstract of the disclosure
AssigneeOlin Corporation
InventorsYves Bosch, Jean Ollivier, Roland Almeras
Life of this patent
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Abstract
A magazine-indexing mechanism for a powder-actuated tool, of the type adopted for use with a disk-shaped cartridge magazine, is actuated by the same trigger displacement as actuates the firing mechanism. A first link, pinned to the receiver, and a second link, pinned to an extension of the trigger, are pinned together, with a magazine engaging hook disposed on the dictal end of the first link. When the trigger is pulled, as to fire the tool, the hook is displaced to engagement with the magazine. When the trigger is released, the engaged hook is displaced, indexing the magazine. Means are also provided to prevent indexing an unfired cartridge through the tool.
Claims7
In a powder-actuated tool of the type comprising:
- a. a receiver;
- b. a barrel reciprocally mounted in said receiver for movement between a forward position and a rearward position;
- c. means defining a charge-receiving chamber in the breech end of said barrel;
- d. a trigger mounted in said receiver and movable irrespective of the position of said barrel;
- e. firing means, including a firing pin, actuable by said trigger to fire a charge disposed in said chamber;
- f. means in said receiver defining a support for a removable charge magazine loaded with a plurality of charges, said magazine being movable in said support means so as to permit the sequential introduction of said charges between said chamber and said firing pin;
- g. means for engaging said magazine at a predetermined point;
- and
- h. means operably connecting said trigger to said engagement means to displace said magazine in step-wise manner to effect said sequential charge introduction;
- the improvement comprising:
- means for rendering said displacing means inoperative unless said barrel is in said rearward position.
Dependencies are inferred from the claim text.