Pressure foot of printed circuit board drilling apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 26, 1994
Grant Date -
N/A
app pub date -
Jan 29, 1993
filing date -
May 30, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A pressure foot (7) of a printed circuit board drilling apparatus is supported on a spindle (2) of the printed circuit board drilling apparatus slidably in the axial direction, and includes a pressing face (13) which presses a printed circuit board (5) at the time of drilling operation, a discharge port (11) formed in a side wall (8) so as to discharge chips produced by drilling operation, the discharge port (11) being connected to a suction device, and a compressed air supply conduit (20A) formed in a side wall so as to eject the compressed air toward a drill bit (4) of the printed circuit board drilling apparatus. A cooling fluid supply device (21) is connected to the compressed air supply conduit (20A). In place of the compressed air supply conduit (20A), a fluid supply conduit (14) for ejecting a cooling fluid toward the drill bit (4) of the printed circuit board drilling apparatus may be formed. In this case, at least one groove (18) extending in a tangential direction of the drill bit is formed in the pressing face (13) so as to allow the air to be drawn into an inside (10) of the pressure foot. Thus, cooling efficiency of the drill bit at the time of drilling operation can be enhanced.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully