US 4,749,115 AGranted

Magazine for a power-driven drive-in apparatus for the accommodation of pins or nails or the like

AssigneeJoh. Friedrich Behrens AG

InventorHellmuth Fehrs

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Abstract

A magazine for a power-driven drive-in apparatus for the accommodation of pins or nails, especially headless nails or pins, comprising a guiding channel the roof wall of which is adapted to assume different heights vis-a-vis the bottom wall for adaptation to the lengths of the pins or nails. A side wall of the guiding channel is formed by at least one longitudinal surface of a lamination which is supported in the upper region of the guiding channel to be capable of limited movement along an axis transverse to the longitudinal axis of the guiding channel and is biased by a spring in a direction towards the other side wall. A lateral covering rail when in a retracted position releases the guiding channel to be charged from the side with its guide designed in such a manner that with the covering rail in the closed position the longitudinal surface of the lamination either lies in close contact against the other side wall or against the upper ends of the nails or pins, and in the partially or entirely opened rearward position the lamination is spaced through a distance from the other side wall.

Claims14

Dependent claims

A magazine for drive-in apparatus for driving pins or nails of the type having a guiding channel formed by spaced apart side, bottom and roof walls, wherein the roof wall may assume different heights above the bottom wall to accommodate different pin or nail lengths, and a spring-biased feeder for feeding the pins or nails in the guiding channel to a shooting channel in a muzzle tool, the magazine characterized in that

(a) one side wall is formed by at least one lamination (34)
(i) having a longitudinal surface (40),
(ii) supported by a guiding structural member (33),
(iii) capable of limited movement transverse to the longitudinal axis of the guiding channel, and
(iv) selectively biased by spring means (38, 38a, 38b) towards the other side wall (30);
(b) a covering rail (21) forms a lateral boundary of magazine (18) and is longitudinally movable to
(i) an open position for receiving a charge of pins or nails from the side of said magazine and
(ii) a closed position for retaining the charge in the magazine;
and
(c) guide means (26a, 26b) formed in a supporting structural member (24)
(i) permitting a longitudinal and transverse movement of the covering rail (21),
(ii) and being interengaged with the lamination (34) such that
(iii) in the open position the lamination (34) is held away from the other side wall (30) a distance greater than the diameter of the larger of shank and head of pins (31) or nails (42), and
(iv) just before the closed position is reached the lamination (34) is urged towards the other side wall (30),
(v) in order to obtain an automatic adaptation of the head of the roof wall to the respective length of the pin (31) or nail (42) by the operation of the covering rail (21).

12 more elements

Dependencies are inferred from the claim text.