US 4,893,493 AGranted

Mechanically powered crimping tool

OwnerSerge Jacques, Roger Boulangerinventors

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Abstract

There is disclosed a mechanically powered tool comprising a crimping device capable of shearing tines out of an angle-bar used for protecting a corner formed by two wall panels and driving the tines into the panels for fixing the angle-bar thereto; the crimping device including a rectilinearly reciprocable actuating rod movable in a working stroke. Operatively connected to one end of the actuating rod to displace it in its working stroke is a follower block of a movement-transforming device, which block is made to be displaced in a rectilinearly reciprocable motion; the transforming device further having a rotary input section. Connected to the latter is a rotary shaft of a single-revolution clutch which further has a rotary input section operatively connected for its rotation, to a rotary output member of a power assembly.

Claims12

Dependent claims

A mechanically powered tool comprising:

a crimping device capable of shearing tines out of an angle-bar used for protecting a corner formed by two wall panels and driving said tines into said panels for fixing said angle-bar thereto, said crimping device including a rectilinearly reciprocable actuating rod connected thereto and movable in a working stroke;
a movement-transforming device having an output section including a follower block displaceable in a rectilinearly reciprocable motion, said block being formed with an elongated open slot extending in a direction normal to said motion and being operatively connected to one end of said rectilinearly reciprocable actuating rod to displace said rod and said crimping device in said working stroke, said movement-transforming device further having a rotary input section;
a single-revolution clutch having a rotary shaft operatively connected to said rotary input section of said movement-transforming device, said clutch further having a rotary input section;
power means including a rotary member operatively connected to said rotary input section of said single-revolution clutch;
said output section of said movement-transforming device further comprises constraining means for constraining said follower block into said rectilinear reciprocable motion of said actuating rod;
and
said rotary input section of said movement-transforming device comprises a disk fixed at the center thereof for rotation on an end of said rotary shaft of said clutch, and a roller mounted at the periphery of said disk, said roller being engaged in said open slot of said follower block, constructed so that, upon rotation of said disk, said roller moves back and forth in said slot and causes said follower block, said actuating rod and said crimping device to be displaced according to said stroke.

4 more elements

A mechanically powered tool comprising:

a crimping device capable of shearing tines out of an angle-bar used for protecting a corner formed by two wall panels and driving said tines into said panels for fixing said angle-bar thereto, said crimping device including a rectilinearly reciprocable actuating rod connected thereto and movable in a working stroke;
a movement-transforming device having an output section including a follower block displaceable in a rectilinearly reciprocable motion, said block being operatively connected to one end of said rectilinearly reciprocable actuating rod to displace said rod and said crimping device in said working stroke, said movement-transforming device further having a rotary input section;
a single-revolution clutch having a rotary shaft operatively connected to said rotary input section of said movement-transforming device, said clutch further having a rotary input section;
and
power means including a rotary member operatively connected to said rotary input section of said single-revolution clutch, said rotary input section of said clutch is a rotary driving hub mounted loosely over said rotary shaft, and said clutch further comprises:
a driven hub fixed to said rotary shaft;
a coil spring tightly wound over both of said driving and driven hubs for allowing rotation in unison of said hubs and said rotary shaft;
a sleeve over said spring, said sleeve having a sleeve rib extending radially outwardly from the periphery thereof, wherein one end of said spring is fixed to said sleeve and the other end is fixed to said driven hub to thereby cause rotation of said sleeve when said hub and shaft are rotated by said driving hub;
and
a control mechanism including a stop element and means for moving said stop element selectively in and out of engagement with said sleeve rib whereby, when said stop element engages said sleeve rib, said sleeve stops rotating, causing said coil spring to expand and to loosen from said driven hub under the action of rotation of said driving hub and causing said driven hub and said shaft to stop rotating, said control mechanism being thus constructed for permitting rotation of said shaft through a single revolution only.

7 more elements

Dependencies are inferred from the claim text.