Woodworking – Planer – Adjustable cutter
Reexamination Certificate
2002-07-09
2003-11-11
Ostrager, Allen (Department: 3725)
Woodworking
Planer
Adjustable cutter
C144S117100
Reexamination Certificate
active
06644368
ABSTRACT:
CROSS REFERENCE TO RELATED APPLICATION
This application claims priority of Taiwan Application No.9126591, filed on May 9, 2002.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a wood planing machine, more particularly to a wood planing machine with an adjusting unit for adjusting a horizontal position of a cutter carriage of the wood planing machine.
2. Description of the Related Art
Referring to
FIGS. 1
to
3
, a conventional wood planing machine is shown to include a base
11
having left and right sides, left and right pairs of posts
12
extending uprightly from the left and right sides of the base
11
, a cutter carriage
13
having left and right carriage ends
131
mounted slidably and respectively on the left and right pairs of posts
12
, and left and right screw rods
16
mounted rotatably on the left and right sides of the base
11
. Tubular left and right thread members
15
extend through two through holes in the left and right carriage ends
131
. The left and right screw rods
16
extend through and threadedly engage the thread members
15
, respectively. Left and right fastening nuts
19
threadedly and respectively engage the thread members
15
so as to secure the thread members
15
on the cutter carriage
13
. A transmission unit
18
includes two sprockets
181
fixed to lower ends of the left and right screw rods
16
, and a transmission chain
182
trained on the sprockets
181
so as permit synchronous rotation of the left and right screw rods
16
, which, in turn, results in vertical movement of the cutter carriage
13
relative to the base
11
. A handle
17
is mounted on a top end of the right screw rod
16
to facilitate turning of the left and right screw rods
16
.
One disadvantage associated with the aforementioned conventional wood planing machine resides in that adjustment of the cutter carriage
13
to a horizontal position, in which the cutter carriage
13
is parallel to the base
11
, is inconvenient.
SUMMARY OF THE INVENTION
Therefore, the object of this invention is to provide a wood planing machine with an adjusting unit that is easy to operate for adjusting the cutter carriage to the horizontal position so as to eliminate the aforesaid disadvantage.
Accordingly, a wood planing machine of the present invention includes a base, left and right pairs of posts, a cutter carriage, left and right screw rods, a transmission unit, left and right thread members, and an adjusting unit. The base has left and right sides. The left and right pairs of posts extend uprightly from the left and right sides of the base, respectively. The cutter carriage includes left and right carriage ends mounted respectively and slidably on the left and right pair of posts. The cutter carriage defines a horizontal line extending from the left carriage end to the right carriage end. Each of the left and right carriage ends is formed with a vertical through hole. Each of the left and right screw rods defines an axis, extends through a respective one of the through holes in the left and right carriage ends, and is rotatable about the axis. Each of the left and right screw rods has a plurality of teeth, an adjacent pair of which defines a pitch therebetween. The transmission unit connects the left and right screw rods to permit synchronous rotation of the left and right screw rods. The left and right thread members are provided on the left and right carriage ends, and threadedly engage the left and right screw rods, respectively, so as to permit vertical movement of the cutter carriage relative to the base along the posts upon rotation of the left and right screw rods. The left thread member is formed with an engaging hole extending in a transverse direction relative to the axis. The adjusting unit includes a mounting wall mounted on the left carriage end adjacent to the left thread member, and a rod -member that extends in the transverse direction and that has a first rod section mounted rotatably on the mounting wall and a second rod section extending eccentrically from the first rod section and received fittingly in the engaging hole in the left thread member. The fine adjusting unit is operable in case the horizontal line is not parallel to the base after adjustment of the cutter carriage to a desired level via rotation of the left and right screw rod such that rotation of the first rod section results in vertical movement of the left thread member relative to the left screw rod by a distance within the pitch, thereby permitting the horizontal line to be parallel to the base.
REFERENCES:
patent: 6085812 (2000-07-01), Chiang
patent: 6089286 (2000-07-01), Liao
patent: 6123125 (2000-09-01), Liao
patent: 6279628 (2001-08-01), Chang
patent: 6283181 (2001-09-01), Chiang
patent: 6289950 (2001-09-01), Chiang
Ladas & Parry
Ostrager Allen
Self Shelley
LandOfFree
Wood planing machine with an adjusting unit for adjusting a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wood planing machine with an adjusting unit for adjusting a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wood planing machine with an adjusting unit for adjusting a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3166682