Abstract:
The apparatus comprises of a barrel and means (3, 5) of driving a fastening element in the barrel, a handle (9) which includes means (25, 33) for receiving a removable feed magazine (4) for fastening elements, in which the forward part (3) of the apparatus is arranged to cooperate with a feed end (55) of the magazine (4) and to ensure that a fastening element is transferred from the magazine (4) into the barrel (1), with the free end (33) of the handle (9) away from the barrel being arranged so that the other loading end (54) of the magazine (4) may be secured thereto. The free end (33) of the handle (9) carries a fixing rod (47) for the aforementioned loading end (54) of the magazine (4), with the rod (47) being fitted so that it pivots and alters the relative position of the free end of the handle (33) and of the loading end (54) of the magazine. There is compensation for all dimensional tolerances thanks to this invention.
Abstract:
A cordless nailer is provided having a magazine assembly with improved features. An improved latch mechanism for clearing nail jams is provided that reduces wear on the latch. A driver retention feature is provided to retain a drive blade from accidentally escaping the nailer. A pusher assembly is provided having a simplified and efficient construction. A pusher retention feature is provided that prevents the driver blade from impacting a nail pusher. A nail retention feature is provided to allow easy loading and unloading of nails into the nailer. Finally, a method of assembling the magazine assembly is provided.
Abstract:
A power actuated tool (20) for driving a fastener into a substrate such as steel or concrete, comprises a housing (2), a barrel assembly (5) mounted to the housing, and a piston displaceable within the barrel assembly upon firing of the tool to drive a fastener from the forward end (25) of the barrel into the substrate, at least a forward end of the barrel assembly being mounted for axial movement relative to the housing whereby firing of the tool requires the forward end (25) of the barrel assembly to be pressed against the substrate to cause retraction of the forward end relative to the tool housing. A telescope shroud (21) surrounds the forward end of the barrel assembly to at least partially suppress noise emission resulting from firing of the tool.
Abstract:
An explosively operated tool (1) for driving a fastener into a substrate such as steel or concrete has a resetting mechanism (12) for resetting a piston (10) of the tool into a rear part of a barrel assembly (8) of the tool after each firing of the tool. The barrel assembly (8) is mounted for axial movement within the tool housing (2) and co-operates with a mass mounted for rearwards movement relative to the housing (2) in opposition to a biasing force to absorb recoil on firing of the tool. The resetting mechanism (12) for resetting the piston (10) into a rear part (2a) of the barrel assembly after firing is powered in response to displacement of the mass on recoil.
Abstract:
The invention relates to a device for driving fastening elements into a base for the purpose of fastening structural components. Said device has a working piston whose range of acceleration and deceleration can be adapted to different conditions whilst maintaining an optimal driving depth (31) and minimal piston length (32). This applies to mechanical, pyrothechnical, pneumatic, electromagnetic and electrothermal working piston drive mechanisms. These devices can be configured for manual use or for production robots, and are characterised mainly in that the working stroke is limited by a piston sleeve (35) which is connected to the piston plate (11), a land (39) which is connected to a ring element (38) or a combination of the two. A chamber is therefore formed on the piston plate side (48a) and the ring side (48b). Said chamber accommodates an e.g. mechanical return device (8) which is subjected to its own load only during the driving-in and gauging processes. The remaining piston energy is cushioned by a buffer (30). The modular configuration of the piston plate (11) and the piston shaft (10) means that the components can be optimised independently in terms of shape and material. The piston mass can be varied considerably. The device can be configured with any degree of rigidity and can be adapted to different fastening elements, bases and driving-in conditions.