Cutting by use of rotating axially moving tool – With signal – indicator – illuminator or optical means
Reexamination Certificate
2000-02-09
2002-01-01
Howell, Daniel W. (Department: 3722)
Cutting by use of rotating axially moving tool
With signal, indicator, illuminator or optical means
C081S490000, C408S124000, C408S24100G
Reexamination Certificate
active
06334743
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a high-speed rotary machine, and more particularly, to a convenient device with full functions and equipment to facilitate the application.
2. Description of the Prior Art
First of all, referring to
FIGS. 1 and 2
, the prior art high-speed rotary machine includes a main body
10
on which a cylindrical body
11
is disposed. The cylindrical body
11
is fitted with a crank
12
at the outer side thereof so that a turning toothed disc
13
is driven by a driving device
14
for the toothed disc. Thereafter, a driven gear
15
is driven by the driving device
14
for the toothed disc to bring a locking device
16
in rotation. Furthermore, the tool
18
(screwdriver heads or bits) plugged in the insertion hole
17
at the front end of the locking device
16
is brought into a rapid rotation.
The prior art high-speed rotary machine can reach an expected high-speed rotary effect; however, it has the following inconveniences:
1. No blocking mechanism is provided on the locking device
16
. Accordingly, when the application torsion value has to be increased (when the screw is tightened at the last step or when the screw is loosened at the first step), one hand has to hold on the main body
10
and the other hand holds the crank
12
in order to turn the whole main body
10
to an expected direction. But it presents a great inconvenience.
2. No preferable locating device for fixing the tools
18
is provided in the insertion hole
17
of the locking device
16
so that it's uneasy for the tools
18
to be separated from the insertion hole
17
.
3. No tool accommodation is provided in the main body
10
for receiving and storing all kinds of tools
18
.
4. The crank
12
is fitted to a single side of the main body
10
. However, the user has to adjust the direction of the main body
10
and its crank
12
at any time due to the using habit of the user with the left and right hand or due to restriction of the working site.
SUMMARY OF THE INVENTION
It is therefore a primary object of the present invention to provide a high-speed rotary machine having a through insertion hole which is aligned with two holes at the left and right of the main body for the crank to insert into any side thereof according to the user's habit or the convenience of the work; moreover, an illuminating device and two tool accommodations are provided for adjusting to the operation and using requirements. Accordingly, the practicality and the convenience of the present invention are enhanced.
It is another object of the present invention to provide a high-speed rotary machine in which a locking device is provided in the most simple manner in order for the user to exactly and rapidly enhance the application torsion and to carry out the screw-tightening at the last step or the screw-loosening at the first step.
REFERENCES:
patent: 2317106 (1943-04-01), Nummelin
patent: 4240771 (1980-12-01), Derbyshire
patent: 4790696 (1988-12-01), Williams
patent: 4932294 (1990-06-01), Chang
patent: 4962681 (1990-10-01), Yang
patent: 4973205 (1990-11-01), Spaulding
patent: 5445479 (1995-08-01), Hillinger
Chiu Kuo-Hsiung
Dougherty & Troxell
Howell Daniel W.
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