US 6,854,742 B2 · Tool driver

Abstract

A tool driver including a shaft having a longitudinal axis and opposite ends. A first partial boss is located at one of the shaft ends, a tool collet at the other of these shaft ends, and a second partial boss having a bore extending therethrough. The second partial boss being positioned on the shaft with the shaft in the bore. There is a stop on the shaft. The second partial boss is slidable on the shaft between the first partial boss and the stop. A spring is positioned between the second partial boss and the stop. The spring urges the second partial boss into engagement with the first partial boss. The first and second partial bosses are complementary to each other and are in engagement with each other defining a bayonet type latch mechanism. The latch mechanism has an axially extending inwardly tapered bore extending from one end coaxially of the shaft into the first and second bosses. The tapered bore being adapted to receive a coaxially located disc of a tool and to be connected to the tool driver within the tapered bore. The tapered bore and the tool disc coaxially centering the tool on the axis of the tool driver.

Claims46

Dependent claims

A tool driver comprising a shaft having a longitudinal axis and opposite ends, a first partial boss at one of said shaft ends, a tool collet at the other of said shaft ends, a second partial boss having a bore extending therethrough, said second partial boss being positioned on said shaft with said shaft in said bore, a stop on said shaft, said second partial boss being slidable on said shaft between said first partial boss and said stop, a spring being positioned between said second partial boss and said stop, said spring urging said second partial boss into said engagement with said first partial boss, said first and second partial bosses being complementary to each other, said first and second partial bosses in engagement with each other defining a bayonet type latch mechanism, said latch mechanism having an axially extending inwardly tapered bore extending from said one end coaxially of said shaft into said first and second bosses, said tapered bore being adapted to receive a coaxially located disc of a tool to be connected to said tool driver within said tapered bore, said tapered bore and said tool disc coaxially centering said tool on said axis of said tool driver.

A tool driver comprising:

a driver shaft having a longitudinal shaft axis, said driver shaft having a first shaft end and a second shaft end, said driver shaft having a first partial boss at said first shaft end;
and
a second partial boss having a boss bore extending therethrough, said second partial boss being slidably mounted on said driver shaft, said first partial boss limiting movement of said second partial boss in one direction on said driver shaft, said first partial boss and said second partial boss being configured for engaging with each other so as to define a bayonet latch mechanism, said first partial boss including a first latch member and, spaced therefrom and diametrically opposed thereto, a second latch member, said second partial boss including an inwardly tapered first extension member and a diametrically opposed, inwardly tapered second extension member.

A tool driver, comprising:

a driver shaft having a longitudinal shaft axis, said driver shaft having a first shaft end and a second shaft end, said driver shaft having a first partial boss at said first shaft end;
and
a second partial boss having a boss bore extending therethrough, said second partial boss being slidably mounted on said driver shaft, said first partial boss limiting movement of said second partial boss in one direction on said driver shaft, said first partial boss and said second partial boss being configured for engaging with each other so as to define a bayonet latch mechanism, said second partial boss has a first boss portion configured for coacting with said first partial boss, said second partial boss further having an oppositely directed second boss portion, said boss bore extending between said first boss portion and said second boss portion, said second boss portion having a spaced interior boss surface spaced from said driver shaft, said second boss portion having an interior boss stop portion between said primary boss bore and said spaced interior boss surface;
a shaft spring slidably mounted on said driver shaft, at least a portion of said shaft spring being positioned between said driver shaft and said spaced interior boss surface, said shaft spring having a first shaft spring end and a second shaft spring end, said first shaft spring end being biasedly positioned against said interior boss stop portion;
and
a driver sleeve slidably mounted on said driver shaft, said driver sleeve having a sleeve operative position relative to said driver shaft, said driver sleeve having a distal first sleeve end surface, said second shaft spring end being biasedly positioned against said first sleeve end surface when said driver sleeve is stationed in said sleeve operative position.

3 more elements

Dependencies are inferred from the claim text.

Tool driver

Life of this patent

Tool driver

Life of this patent

Abstract

Claims46