Blind riveter with pneumatic rivet-core disposal
AssigneeGesipa Blindniettechnik GmbH
InventorsHans Ehmann, Walter Bieber, Hans Baier
Life of this patent
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Abstract
A blind riveter has a T-shaped housing whose one T-arm forms a working tip provided with a reciprocal internal chuck, whose other arm is formed as a hollow compartment, and whose central T-leg incorporates a pneumatic cylinder. The cylinder can displace the chuck to pull the mandrel of a blind rivet, thereby pulling the rivet back against the tip to upset the rivet. A passage extends from the chuck back into the compartment. The cover of the compartment is formed with a jet pump that is powered off the pneumatic supply that operates the riveter and serves to suck a mandrel pulled from a rivet back from the chuck into the compartment.
Claims14
A blind riveter for setting blind rivets having rivet bodies each having a pull-out mandrel, said riveter comprising:
- a housing having a tip and forming a passage opening at one end at said tip and having another end;
- a chuck displaceable in said housing adjacent said tip, whereby a rivet mandrel can be engaged in said chuck with the respective rivet body bearing against said tip so that displacement of said chuck pulls the mandrel through the rivet body to upset same;
- a source of compressed gas;
- pneumatically operable drive means connected between said source and said chuck to displace same in said housing;
- a substantially closed compartment on said housing at the other end of said passage;
- and
- means including a pump having a high-pressure input connected to said source and a low-pressure intake connected to said compartment for aspirating air from said compartment and thereby for forming an air current through said passage to such a mandrel pulled from the respective rivet body into said compartment.
A blind riveter for setting blind rivets having rivet bodies each having a pull-out mandrel, said riveter comprising:
- a housing having a tip and forming a passage opening at one end at said tip and having another end;
- a chuck displaceable in said housing adjacent said tip, whereby a rivet mandrel can be engaged in said chuck with the respective rivet body bearing against said tip so that displacement of said chuck pulls the mandrel through the rivet body to upset same;
- a source of compressed gas;
- pneumatically operable drive means connected between said source and said chuck to displace same in said housing;
- a substantially closed compartment on said housing at said other end of said passage;
- and
- means including a jet pump having a high-pressure input connected to said source, a low-pressure intake connected to said compartment, and an output open to the outside for aspirating air from said compartment and thereby for forming an air current through said passage to suck a mandrel from the respective rivet body into said compartment.
Dependencies are inferred from the claim text.