Self-reversing tapping attachment with shock absorption
AssigneeTapmatic Corporation
InventorAllan S. Johnson
Life of this patent
Estimating the term…
Abstract
A self-reversing tapping attachment comprises a forward drive member and a reverse drive member drivingly engageable with a tap spindle drive member, as well as gear members drivingly engageable with the forward drive member and the reverse drive member, and includes shock absorbers cushioning impact between the driver members and the gear members. An exchangeable chuck holding a tap is detachably mountable on the tap spindle driver, permitting use of taps of different weight and material.
Claims25
A self-reversing tapping attachment comprising:
- (a) tap spindle means for holding a tap and rotatable for accomplishing tapping;
- (b) tap spindle drive means engageable to drive said tap spindle means;
- (c) forward drive means engageable in driving engagement with said tap spindle drive means to impart rotation to said tap spindle means for accomplishing tapping;
- (d) reverse drive means engageable in driving engagement with said tap spindle drive means to impart rotation to said tap spindle means in an opposite direction to rotation imparted by said forward drive means;
- (e) gear means for transmitting drive to said forward drive means and said reverse drive means, said tap spindle means being movable along the direction of tapping relative to said forward drive means and said reverse drive means;
- and
- (f) shock absorber means for absorbing shock of engagement between said gear means and at least one of said forward drive means and reverse drive means, at least one of said forward drive means and said reverse drive means including said shock absorber means.
In a self-reversing tapping attachment comprising tap spindle means, tap spindle drive means engageable to drive said spindle means, forward drive means engageable in driving engagement with said spindle drive means, reverse drive means engageable in driving engagement with said tap spindle drive means to impart rotation to said tap spindle means in an opposite direction to rotation imparted by said forward drive means and gear means for transmitting drive to said forward drive means and said reverse drive means, said tap spindle drive means being movable along the direction of tapping relative to said forward drive means and said reverse drive means, the improvement comprising shock absorber means for absorbing shock of engagement between said gear means and at least one of said forward drive means and said reverse drive means, said gear means including said shock absorber means.
In a self-reversing tapping attachment comprising tap spindle means, tap spindle drive means engageable to drive said tap spindle means, forward drive means engageable in driving engagement with said tap spindle drive means, reverse drive means engagable in driving engagement with said tap spindle drive means to impart rotation to said tap spindle means in an opposite direction to rotation imparted by said forward drive means and gear means for transmitting drive to said forward drive means and said reverse drive means, said tap spindle drive means being movable along the direction of tapping relative to said forward drive means and said reverse drive means, the improvement comprising shock absorber means for absorbing shock of engagement between said gear means and at least one of said forward drive means and said reverse drive means, said shock absorber means being carried by at least one of said forward drive means and said reverse drive means.
Dependencies are inferred from the claim text.