Table saw

• US 5,230,269 A
• Filed: 03/23/1992
• Issued: 07/27/1993
• Est. Priority Date: 08/11/1989
• Status: Expired due to Term

• Current Assignee: One World Technologies (Techtronic Industries Company Limited)
• Original Assignee: Ryobi Limited (Techtronic Industries Company Limited)
• Inventors: Miyamoto, Kouichi, Wada, Tatsuya, Shiotani, Takeshi, Sato, Mitsumasa, Tsugami, Kunio
• Primary Examiner(s): Yost, Frank T.
• Assistant Examiner(s): Peterson, Kenneth E.
• Application Number:
  US07/856,112
• Time in Patent Office: 491 Days
• Field of Search: 83/468.7, 83/477.2, 83/522.19, 83/438, 83/522.17, 269/318, 144/286 R, 144/287
• US Class Current: 83/468.7
• CPC Class Codes: B23D 47/025 of tables
• CPC Class Codes: B27B 27/02 arranged laterally and parallel with respect to the plane of the saw blade
• CPC Class Codes: B27B 5/243 the saw blade being arranged underneath the work-table the circular saw blade arranged underneath a stationary work-table for sawing material in general B23D45/06
• CPC Class Codes: Y10T 83/6612 Having position indicating means
• CPC Class Codes: Y10T 83/7647 Adjustable
• CPC Class Codes: Y10T 83/773 Work-support includes passageway for tool [e.g., slotted table]
• CPC Class Codes: Y10T 83/858 Indicates dimension of work being cut

Abstract

A table saw has a circular saw table, a miter table and a supplementary table to form a working table, on the front and rear sides of which two guide rails are disposed slidably with respect to the working table. The miter table has a miter fence thereon whose pivot points are provided at two separate positions.

Claims

1. In a table saw having a circular saw for cutting a work and a working table, the improvement in which front and rear guide rails are disposed laterally on front and rear sides of said working table, respectively, a lip fence being bridged between the front and rear guide rails in order to determine a cutting length of said work, said lip fence comprising a main body end front and rear guide portions, respectively, provided at front and rear ends of said main body, said front guide portion being provided with a movable means for laterally and slidably moving said lip fence along said guide rails and a fastening means for fastening said lip fence on said guide rails, said movable means being provided with at least one movable member which is moved along a groove formed in said front guide rail while movement of said at least one movable member in the front and rear directions is restricted, wherein said at least one movable member is provided with an elastic member for separating a side wall of said front guide portion from said front guide rail when said lip fence is in a movable state.

2. The table saw according to claim 1, wherein the front guide portion has:

a vertical portion whose lower end has a fastening handle for fastening the front guide portion on the front guide rail; and

a horizontal portion having, at opposite ends of said horizontal portion, two said movable members.

3. The table saw according to claim 2, wherein each of the movable members comprises a rotatable roller rolling along the groove in the front guide rail.

4. The table saw according to claim 2, wherein each of the movable members comprises a slider sliding along said groove formed in said front guide rail.

5. The table saw according to claim 2, wherein said fastening has an eccentric cam which is rotated by the fastening handle, said eccentric cam operating an operating member to fasten the front guide portion onto the front guide rail.

6. The table saw according to claim 2, wherein said horizontal portion has, at its front end, an indicating plate for indicating a position of the lip fence with respect to a scale provided on a surface of the front guide rail.

7. The table saw according to claim 6, wherein said scale is provided on an inclined surface of the front guide rail, said scale being detachably provided on the inclined surface.

8. The table saw according to claim 1, wherein said movable member comprises a rotatable roller rolling along said groove formed in said front guide rail.

9. The table saw according to claim 1, wherein said movable member comprises a slider sliding along said groove formed in said front guide rail.

10. The table saw according to claim 1, wherein said two guide rails are manufactured by a drawing process, one of said guide rails being adapted for use as said main body.

11. In a table saw having a circular saw for cutting a work and a working table, the improvement in which front and rear guide rails are disposed laterally on front and rear sides of said working table, respectively, a lip fence being bridged between the front and rear guide rails in order to determine a cutting length of said work, said lip fence comprising a main body end front and rear guide portions, respectively, provided at front and rear ends of said main body, said front guide portion being provided with a movable means for laterally and slidably moving said lip fence along said rails and a fastening means for fastening said lip fence on said guide rails, said movable means being provided with at least one movable member which is moved along a groove formed in said front guide rail while its movement in the front and rear directions is restricted, wherein the front guide portion has:

a vertical portion whose lower end has a fastening handle for fastening the front guide portion on the front guide rail; and

a horizontal portion having, at opposite ends of said horizontal portion, two movable member, said horizontal portion having, at a front end thereof, an indicating plate for indicating a position of the lip fence with respect to a scale provided on a surface of the front guide rail, said scale being provided on an inclined surface of the front guide rail, said scale being movably and detachably provided on the inclined surface, said movability of said scale enabling a reference point of said scale to be set to a desired position with respect to said working table.