# US 4,394,878 A · Combination planar molder

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- Number: US 4,394,878 A
- Document ID: US4394878A
- Status: Granted
- Kind: A
- Application number: 06/283,946
- Filed: 1981-07-16
- Granted: 1983-07-26
- Earliest claimed: 1981-07-16
- Assignees: R. B. Industries, Inc.
- Inventors: Verle L. Rice; Dwight E. Check
- Web page: https://patentgrep.com/patent/US4394878A

## CPC

- B23Q 1/70: Stationary or movable members for carrying working-spindles for attachment of tools or work {(B23Q1/01 takes precedence; designed to be moved by using particular mechanisms B23Q1/44)}
- B27C 1/04: Thicknessing machines
- B23Q: DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING (tools of the kind used in lathes or boring machines B23B27/00); MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B27C: PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL (machine tools in general B23; working wood using abrasive, e.g. sanding, devices B24; tools for these purposes B27G)

## Abstract

This invention relates to a combination planar molder for wood products. A support framework mounts a removable shaft for mounting either a planing knife or a molding bit. The shaft is mounted in bearing means at least one of which is pivotal about its housing so as to permit the shaft to be raised and lowered at an angle and slipped laterally for insertion and removal. This allows one shaft to be utilized for the planing head and a separate shaft to be utilized for a molding head. This eliminates time consuming balancing of the shaft as a result of changing a conventional planing head into a molding head.

## Claims

### Claim 1

A combination planar molder for wood comprising:
a support framework;
shaft means mounting either a planing knife or a molding bit;
means for removably mounting said shaft means on said framework and comprising a sheave rigid with said shaft and bearing means mounted in said framework for pivotal movement and adapted to receive one end of said shaft means;
prime mover means for turning said shaft means; and
drive means for moving a length of wood past said planing knife or said molding bit.

### Claim 2 (depends on 1)

The invention of claim 1, wherein said shaft includes a second sheave on the end opposite said first sheave.

### Claim 3 (depends on 1)

The invention of claim 1, wherein is included a second sheave formed on said shaft.

### Claim 4 (depends on 1)

The invention of claim 1, wherein said drive means includes first and second drive rollers disposed on opposite sides of said shaft means.

### Claim 5 (depends on 1)

The invention of claim 1, wherein is included a platform mounted on said framework for supporting a piece of wood in working relationship to said shaft means; and means for raising and lowering said platform relative to said shaft means.

### Claim 6

A combination planar molder for wood comprising:
a support framework;
means mounting either a planing knife or a molding bit on said framework,
said mounting means comprising a shaft, a first sheave rigid with said shaft, a second sheave integrally formed into said shaft and first and second bearing means for receiving said shaft;
prime mover means mounted on said framework and rotatably coupled with said first sheave for rotating said shaft;
first and second drive rollers disposed on said frame on opposite sides of said mounting means;
reduction drive means for driving said first and second drive rollers; and
means coupling said second sheave with said reduction drive means.

### Claim 7 (depends on 6)

The invention of claim 6 wherein said shaft is movable laterally relative to one of said bearing means.

### Claim 8 (depends on 7)

The invention of claim 7, wherein said one bearing means is pivotal about an axis to facilitate insertion and removal of said shaft.

### Claim 9 (depends on 6)

The invention of claim 6, wherein is included a platform mounted on said framework for supporting a piece of wood in working relationship to said mounting means; and means for raising and lowering said platform relative to said mounting means.