Table saw having a workpiece positioning and push cutting device

• US 20030213349A1
• Filed: 05/16/2002
• Published: 11/20/2003
• Est. Priority Date: 05/16/2002
• Status: Abandoned Application

• Current Assignee: Chin-Chin Chang
• Original Assignee: Chin-Chin Chang
• Inventors: Chang, Chin-Chin
• Application Number:
  US10/150,682
• Publication Number:
  US 20030213349A1
• Time in Patent Office: Days
• US Class Current: 83/438
• CPC Class Codes: B23D 47/045 feeding work into engagement with the saw blade
• CPC Class Codes: B27B 25/10 Manually-operated feeding or pressing accessories, e.g. pushers
• CPC Class Codes: Y10T 83/727 With means to guide moving work
• CPC Class Codes: Y10T 83/773 Work-support includes passageway for tool [e.g., slotted table]

Abstract

A table saw includes a workpiece positioning and push cutting device mounted on the working table of the base, and including a seat board, a slide board, and a push seat. The seat board is selectively secured on one of the two sides of the working table of the base. The slide board is slidably mounted on the seat board. The push seat is pivotally mounted on the slide board, and may be used to adjust the inclined angle of the workpiece to be cut. Thus, the table saw is available for both of the right-handed user and the left-handed user. In addition, the inclined angle of the push seat may be adjusted exactly, so that the workpiece may have an exact inclined angle relative to the saw blade, thereby enhancing the cutting precision of the table saw.

Claims

1. A table saw having a workpiece positioning and push cutting device, comprising a base having a working table, and a workpiece positioning and push cutting device mounted on the working table of the base, the workpiece positioning and push cutting device including a seat board, a slide board, and a push seat, wherein:

the working table of the base has a first side and a second side;

the seat board is selectively secured on the first side or the second side of the working table of the base;

the slide board is slidably mounted on a top face of the seat board, and is formed with a positioning slot; and

the push seat is pivotally mounted on a top face of the slide board, and is formed with a slot, a bolt is in turn extended through the positioning slot of the slide board and the slot of the push seat, and is screwed into an adjusting rotation knob.

2. The table saw having a workpiece positioning and push cutting device in accordance with claim 1, wherein the seat board has a top face provided with two symmetric protruding guide rails and formed with a rectangular recessed seat located between the two guide rail, and the slide board has a bottom face formed with two opposite slide channels each slidably mounted on one of the two guide rail of the seat board, so that the slide board may slide on the seat board longitudinally.

3. The table saw having a workpiece positioning and push cutting device in accordance with claim 2, wherein the seat board is provided with two opposite catch blocks each screwed on a top face of the recessed seat of the seat board, and the bolt may has a head whose movement is limited by the two catch blocks of the seat board.

4. The table saw having a workpiece positioning and push cutting device in accordance with claim 1, wherein the slide board is provided with a scale disk surrounding a periphery of the positioning slot.

5. The table saw having a workpiece positioning and push cutting device in accordance with claim 1, wherein the slide board has a top face formed with a shaft hole, the push seat has a bottom face formed with a shaft hole, the push seat is provided with a pivot shaft pivotally mounted between the shaft hole of the slide board and the shaft hole of the push seat, so that the push seat is pivoted on the top face of the slide board about the pivot shaft, so as to adjust an included angle between the push seat and the slide board.

6. The table saw having a workpiece positioning and push cutting device in accordance with claim 1, wherein the working table of the base is formed with two opposite recessed mounting seats, and the seat board is selectively secured on one of the two mounting seats of the working table of the base.

7. The table saw having a workpiece positioning and push cutting device in accordance with claim 6, further comprising a cover plate selectively secured on one of the two mounting seats of the working table of the base.