Tool attaching/detaching device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 16, 2000
Grant Date -
N/A
app pub date -
Apr 21, 1998
filing date -
Aug 26, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Upper-and-lower cutouts (25a) and right-and-left cutouts are formed in a flange portion (23) of a holder main body (12). In a fore portion of the outer circumference of the flange portion (23), is provided a first operation ring (41), which is urged rearward by a compression spring (42). A taper portion (44) inwardly slanted as viewed toward the rear as well as a straight portion (45) are formed in the operation ring (41), and a drive key portion to be fitted to the key way of the spindle through the right-and-left cutouts are provided on both right and left sides of a rear face (45a) of the straight portion (45). In the rear of the operation ring (41), is provided a second operation ring (51) via two spacers (52). Engaging claws (54) to be engaged with an engaging portion of the spindle are provided in a rear portion of the inner surface of the operation ring (51), and a taper portion (57) inwardly slanted as viewed toward the front is provided in a fore portion of the inner surface of the operation ring (51). The operation ring (51) and the spacers (52) are coupled to each other by first steel balls (55), and a multiplicity of second steel balls (58) are arranged between the taper portion (44), the spacers (52) and the taper portion (57).
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