Nail driver

In a nail driver comprising:

• a body having a barrel with an open front end;
• a hollow plunger having an open front end and slidably reciprocable in said barrel;
• and spring means biasing said plunger to an extended position in which its front end is forward past the front end of the barrel;
• the improvement which comprises:
• holding means on said body for holding a nail extending along the inside of said plunger to pass forward through the open front end of the plunger when the barrel is moved forward along the plunger, said holding means being a magnet tip which holds a nail magnetically and is mounted on the body for vibrating movement with respect to said barrel;
• and means for vibrating said holding means when the barrel is moved forward along the plunger, said means for vibrating comprising:
• a series of surface irregularities on the magnet tip in succession longitudinally of the barrel;
• and means on said plunger presenting surface irregularities in succession longitudinally of the plunger and in confronting relationship to said surface irregularities on the magnet tip.

In a nail driver comprising:

• a body having a barrel with a front end;
• a plunger slidably reciprocable in said barrel and having a front end;
• and spring means biasing said plunger to an extended position in which its front end is located forward beyond the front end of the barrel;
• the improvement which comprises:
• a magnet tip projecting forward beyond the front end of the barrel but behind the front end of the plunger when the plunger is in said extended position;
• coupling means coupling said magnet tip to said body inside said barrel for movement of said magnet tip in unison with said barrel along said plunger, said coupling means permitting the magnet tip to vibrate with respect to said barrel;
• means for vibrating said magnet tip when said barrel is moved forward along said plunger;
• said means for vibrating comprising:
• a series of saw teeth on said magnet tip in succession along its length;
• and means on said plunger providing a series of saw teeth in succession along its length which are in confronting relationship to said saw teeth on the magnet tip and which ride over said saw teeth on the magnet tip for causing the magnet tip to vibrate when the barrel moves along the plunger.

In a nail driver comprising:

• a body having a barrel with a front end;
• a plunger slidably reciprocable in said barrel and having a front end;
• and spring means biasing said plunger to an extended position in which its front end is located forward beyond the front end of the barrel;
• the improvement which comprises:
• a magnet tip projecting forward beyond the front end of the barrel but behind the front end of the plunger when the plunger is in said extended position;
• coupling means coupling said magnet tip to said body inside said barrel for movement of said magnet tip in unison with said barrel along said plunger, said coupling means permitting the magnet tip to vibrate transversely with respect to said barrel;
• and means for vibrating said magnet tip transversely of said barrel and said plunger when said barrel is moved forward along said plunger.

In a nail driver comprising:

• a body having a barrel with a front end, said body having a rigid stem extending along the inside of said barrel toward said front end of the barrel;
• a plunger slidably reciprocable in said barrel and having a front end;
• and spring means biasing said plunger to an extended position in which its front end is located forward beyond the front end of the barrel;
• a magnet tip projecting forward beyond the front end of the barrel but behind the front end of the plunger when the plunger is in said extended position, said magnet tip extending in front of said stem;
• a plunger slidably reciprocable in said barrel and having a front end;
• and spring means biasing said plunger to an extended position in which its front end is located forward beyond the front end of the barrel;
• the improvement which comprises:
• a magnet tip projecting forward beyond the front end of the barrel but behind the front end of the plunger when the plunger is in said extended position, said magnet tip extending in front of said stem;
• said plunger having a longitudinal bore therein which slidably receives said stem and part of which extends in front of said magnet tip in said extended position of the plunger, said bore being open at the front end of the plunger;
• and said plunger having a top opening therein leading down into said bore for passing a nail down into the bore in front of said magnet tip in said extended position of the plunger;
• coupling means pivotally coupling said magnet tip to said stem inside said barrel for movement of said magnet tip in unison with said barrel along said plunger, said coupling means permitting the magnet tip to vibrate with respect to said barrel;
• means for vibrating said magnet tip when said barrel is moved forward along said plunger;
• said means for vibrating comprising:
• a series of saw teeth on said magnet tip in succession along its length on the bottom;
• and an insert received in said plunger below said part of the bore which extends in front of said magnet tip in said extended position of the plunger, said insert having a series of saw teeth on the top in succession lengthwise of said bore which are positioned to ride bumpily over said saw teeth on the magnet tip and thereby cause the magnet tip to vibrate up and down when the barrel moves forward with respect to the plunger.

In a nail driver comprising:

• a body having a barrel with a front end, said body having a rigid stem extending along the inside of said barrel toward said front end of the barrel;
• a plunger slidably reciprocable in said barrel and having a front end;
• and spring means biasing said plunger to an extended position in which its front end is located forward beyond the front end of the barrel;
• the improvement which comprises:
• a magnet tip projecting forward beyond the front end of the barrel but behind the front end of the plunger when the plunger is in said extended position, said magnet tip extending in front of said stem;
• said plunger having a longitudinal bore therein which slidably receives said stem and part of which extends in front of said magnet tip in said extended position of the plunger, said bore being open at the front end of the plunger;
• and said plunger having a top opening therein leading down into said bore for passing a nail down into the bore in front of said magnet tip in said extended position of the plunger;
• coupling means pivotally coupling said magnet tip to said stem inside said barrel for movement of said magnet tip in unison with said barrel along said plunger, said coupling means means permitting the magnet tip to vibrate with respect to said barrel;
• means for vibrating said magnet tip when said barrel is moved forward along said plunger;
• said means for vibrating comprising:
• a series of saw teeth on said magnet tip in succession along its length on the bottom;
• and an insert received in said plunger below said part of the bore which extends in front of said magnet tip in said extended position of the plunger, said insert having a series of saw teeth on the top in succession lengthwise of said bore which are positioned to ride bumpily over said saw teeth on the magnet tip and thereby cause the magnet tip to vibrate up and down when the barrel moves forward with respect to the plunger.

In a nail driver comprising:

• a body having a barrel with an open front end;
• a hollow plunger having an open front end and slidably reciprocable in said barrel;
• and spring means biasing said plunger to an extended position in which its front end is forward past the front end of the barrel;
• the improvement which comprises:
• holding means on said body for holding a nail extending along the inside of said plunger to pass forward through the open front end of the plunger when the barrel is moved forward along the plunger, said holding means being a magnet tip which holds a nail magnetically and is mounted on the body for vibrating movement with respect to said barrel;
• means pivotally coupling said magnet tip to said body loosely inside said barrel adjacent its front end and permitting vibration of the magnet tip with respect to said barrel;
• and means for vibratign said holding means when the barrel is moved forward along the plunger, said means for vibrating comprising:
• a series of saw teeth on the magnet tip in succession longitudinally of the barrel;
• and an insert carried by plunger and having saw teeth in succession longitudinally of the plunger and in confronting relationship to said saw teeth on the magnet tip;
• said plunger having a top opening therein which is elongated lengthwise of the plunger and extends in front of said magnet tip when the plunger is in said extended position, said top opening being dimensioned to pass a nail down into the hollow plunger in front of said magnet tip to be held magnetically by said magnet tip;
• and a magazine presenting a nail supply chamber extending up from said barrel;
• said barrel having a top opening therein below said nail supply chamber of the magazine and positioned to register with said top opening in the plunger when the barrel is forward along the plunger from said extended position of the plunger with respect to the barrel.