Wood planing machine with a sawdust-collecting mechanism

Details Wood planing machine with a sawdust-collecting mechanism Wood planing machine with a sawdust-collecting mechanism

2001-02-12

2001-09-25

Bray, W Donald (Department: 3725)

Woodworking

Cutter hood or dust conveyor

C015S312200, C015S314000, C055S314000, C083S100000, C144S114100, C144S286500, C144S117100, C409S137000, C451S456000

Reexamination Certificate

active

06293321

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a wood planing machine, more particularly to a wood planing machine with a sawdust-collecting mechanism.
2. Description of the Related Art
A sawdust-collecting apparatus is normally provided for a wood planing machine for conducting a sawdust-removing operation during planing, and includes a suction device with a conduit extending therefrom to the wood planing machine so as to remove the sawdust. However, it is relative expensive to install a separate sawdust-collecting apparatus.
SUMMARY OF THE INVENTION
Therefore, it is an object of the present invention to provide a wood planing machine that is capable of providing both planing and sawdust-removing functions during processing of a wooden workpiece.
Accordingly, a wood planing machine of this invention comprises: a base having two opposite sides and front and rear sides; two pairs of supporting rods respectively extending upright from the opposite sides of the base; a cutter carriage including a pair of parallel carriage casings extending between and mounted movably and respectively on the pairs of the supporting rods; a motor housing mounted on the cutter carriage between the carriage casings at the rear side of the base, and having a vent port that opens frontwardly; a motor disposed in the motor housing; a rotary cutter mounted on and extending in a transverse direction between the carriage casings below the motor housing, and adapted to plane a wooden workpiece thereunder; a rotatable shaft extending from the rotary cutter in the transverse direction through one of the carriage casings and driven by the motor; a blower mounted on said one of the carriage casings opposite to the shaft, and having a blower housing with an inlet port and an outlet port, and a fan disposed in the blower housing and connected to the shaft; a sawdust-guiding member that includes a box mounted on the cutter carriage at the front side of the base and extending in the transverse direction between the carriage casings to define therein a flow channel with an entrance port and an exit port opposite to the entrance port, and a rear spout extending rearwardly in a direction transverse to the flow channel to the rotary cutter to define a sawdust passageway therein, the spout having an arcuate open end that circumferentially surrounds a top portion of the rotary cutter to define therebetween a sawdust entrance space that is in fluid communication with the sawdust passageway; an air duct interconnecting and in fluid communication with the vent port of the motor housing and the entrance port of the box; a first conduit interconnecting and in fluid communication with the inlet port of the blower housing and the exit port of the box; a second conduit connected to and in fluid communication with the outlet port of the blower housing; and a sawdust collector connected to and in fluid communication with the second conduit. Whereby, rotation of the motor results in air flow from the vent port into the flow channel via the air duct, and simultaneously causes rotation of the fan via the shaft, which in turn, results in induction of air flow from the flow channel to the sawdust collector via the first and second conduits.


REFERENCES:
patent: 3167260 (1965-01-01), Gibbons et al.
patent: 4088164 (1978-05-01), McCord, Jr.
patent: 4485859 (1984-12-01), Krogstad et al.
patent: 5525396 (1996-06-01), Rudolph et al.
patent: 5592227 (1997-01-01), Varley

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