Rivet gun
AssigneeAbeo, LLC
InventorWOLF-DIETER KEPPEL
Life of this patent
Estimating the term…
Abstract
A rivet gun for setting a self-tapping rivet in one or more work pieces has a tool body having a handle for gripping, a rotation assembly having a motor attached to an axially adjustable shaft and a chuck to thereby impart rotation to the chuck adapted to grip and rotate the shank of the self-tapping rivet. A hydraulic assembly having a pull bushing is connected to a piston rod attached to a piston and a retraction assembly having a mandrel clamp and a mandrel clamp ring is connected to a spring guide biased toward the mandrel clamp by a spring to thereby compress the mandrel clamp to grip and retract the shank, set the self-tapping rivet in the work pieces and detach the shank from the self-tapping rivet.
Claims27
A rivet gun for setting a self-tapping rivet having a mandrel with a shank and a self-tapping head, a weakened area of reduced diameter and a hollow rivet body surrounding the mandrel for joining one or more work pieces, the rivet gun comprises:
- a tool body having a handle for gripping;
- a rotation assembly having a motor attached to an axially adjustable shaft connected to a chuck to impart rotation to the chuck adapted to grip and rotate the shank of the self-tapping rivet;
- a hydraulic assembly;
- a retraction assembly adapted to grip the shank of the self-tapping rivet;
- and
- the hydraulic assembly connected to the retraction assembly adapted to retract the shank to set the self-tapping rivet in the work pieces and detach the shank from the self-tapping head at the weakened area of reduced diameter.
A rivet gun for setting a self-tapping rivet in one or more work pieces, the rivet gun comprises:
- a tool body having a handle for gripping;
- a rotation assembly having a motor attached to an axially adjustable shaft and a chuck to thereby impart rotation to the chuck adapted to grip and rotate the shank of the self-tapping rivet;
- a hydraulic assembly having a pull bushing connected to a piston rod attached to a piston, and
- a retraction assembly having a mandrel clamp and a mandrel clamp ring connected to a spring guide biased toward the mandrel clamp by a spring to thereby compress the mandrel clamp to grip and retract the shank, set the self-tapping rivet in the work pieces and detach the shank from the self-tapping rivet.
A method for setting a self-tapping rivet in one or more work pieces, the method comprising:
- taking a rivet gun having a motor for rotating a chuck;
- inserting a shank of the self-tapping rivet into the chuck for gripping the shank;
- rotating the chuck with an axially adjustable shaft attached to the motor for creating a hole through the work pieces with a self-tapping head of the self-tapping rivet;
- moving a brake body with brake pads into contact with a brake disk attached to the axially adjustable shaft for braking rotation of the axially adjustable shaft;
- retracting a piston rearward with a piston rod attached to a pull bushing;
- and
- compressing a mandrel clamp with a mandrel clamp ring to grip the shank for setting the self-tapping rivet in the work pieces and detaching the shank from the self-tapping head.
A method for setting a self-tapping rivet in one or more work pieces, the method comprising:
- taking a rivet gun having a rotation assembly with a motor for imparting rotation to a chuck, a braking assembly for braking rotation of the rotation assembly and a hydraulic assembly for imparting rearward movement to a retraction assembly;
- inserting a shank of the self-tapping rivet into the chuck;
- running the motor to rotate the chuck and tap a hole in the work pieces with the self-tapping rivet;
- activating the braking assembly by moving a brake body with brake pads into contact with a brake disk of the braking assembly;
- engaging the hydraulic assembly to move a piston with a piston rod attached to a pull bushing rearward for imparting rearward movement to the mandrel clamp;
- and
- retracting the mandrel clamp for setting the self-tapping rivet in the work pieces and detaching the shank.
Dependencies are inferred from the claim text.