US 5,468,101 AGranted

Wood working machine and table translation apparatus for the same

OwnerIsao Shodainventor

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Abstract

A table translation apparatus for a wood working machine is disclosed wherein a table can be repetitively moved at a high speed within a small distance to enhance the working efficiency for wood. A pair of front and rear screw shafts are supported for rotation linearly at front and rear portions of a bed extending forwardly and backwardly and driven to rotate forwardly or reversely independently of each other by a motor. A pair of front and rear shuttles are held in threaded engagement with the front and rear screw shafts, respectively. A pair of front and rear side clutches for releasably connecting the table and the front and rear side shuttles to each other, respectively, are provided on the table mounted for forward and backward sliding movement on the bed. When the table is connected to the front side shuttle by the front side clutch, the table is moved forwardly or rearwardly by forward or reverse rotation of the front side screw shaft, but when the table is connected to the rear side shuttle by the rear side clutch, the table is moved forwardly or rearwardly by forward or reverse rotation of the rear side screw shaft. A wood working machine includes a pair of such table translation apparatus.

Claims4

Dependent claims

A table translation apparatus for a wood working machine wherein a carrier is mounted for leftward and rightward sliding movement on a beam secured to a pair of left and right columns and extending horizontally leftwardly and rightwardly and a plurality of working heads are mounted for upward and downward movement on said carrier, comprising:

a bed extending forwardly and backwardly below and perpendicularly to said beam;
a table mounted for horizontal forward and backward sliding movement on said bed for moving a piece of wood placed thereon forwardly and backwardly so as to pass below said beam;
a pair of front and rear screw shafts supported for co-axial rotation at both a front portion and a rear portion of said bed and connected to be driven to rotate forwardly or reversely independently of each other by a motor;
a pair of front and rear shuttles held in threaded engagement with said front and rear screw shafts, respectively, for being moved forwardly and rearwardly along a rail by forward or reverse rotation of said front and rear screw shafts, respectively;
a front side clutch provided on the front side of said table for releasably connecting said table and said front side shuttle to each other;
and
a rear side clutch provided on the rear side of said table for releasably connecting said table and said rear side shuttle to each other;
said table being moved forwardly or rearwardly by forward or reverse rotation of said front side screw shaft when said table is connected to said front side shuttle by said front side clutch whereas said table is moved forwardly or rearwardly by forward or reverse rotation of said rear side screw shaft when said table is connected to said rear side shuttle by said rear side clutch.

5 more elements

Dependencies are inferred from the claim text.