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Title:
CHUCKING MECHANISM
Document Type and Number:
Japanese Patent JP3126887
Kind Code:
B2
Abstract:

PURPOSE: To provide a chucking mechanism by which a member to be chucked can be chucked without using a spring member and the member does not slip out into an oral cavity of a patient during treatment.
CONSTITUTION: This chucking mechanism is provided with a hollow rotatory axis 12 having a turbine fan 11, a hollow chucking axis 13 having an approximately the same diameter as the inner diameter of the rotatory axis 12, a ball 14 whose position is controlled by the chucking axis 13 and the rotatory axis 12, a spring 15 for pressing the chucking axis 13 always toward the inserting opening direction of the member to be chucked, and a lid 19 for making the chucking axis slidingly-moved toward the counter direction of the inserting opening direction against the spring 15. Holes 13b which are drilled and arranged so that a part of the ball 14 is projected into the hollow part of the chucking axis 13 are formed in the chucking axis 13, and the part of the ball 14 is projected into the hollow part of the chucking axis and the member to be chucked 10 inserted into the hollow part is fixed when the chucking axis 13 is pressed toward the inserting opening direction by means of the spring 15.


Inventors:
Nakazawa, Hiroshi
Tsuji, Yasushi
Application Number:
JP1994000262570
Publication Date:
January 22, 2001
Filing Date:
October 26, 1994
Export Citation:
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Assignee:
OSADA RES INST LTD
International Classes:
B23B31/107; A61C1/14; B23B31/22; (IPC1-7): A61C1/14; B23B31/107
Attorney, Agent or Firm:
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