Blade and motor carrier with height/angle adjustment mechanism

• US 6,244,149 B1
• Filed: 10/27/1998
• Issued: 06/12/2001
• Est. Priority Date: 06/17/1996
• Status: Expired due to Term

• Current Assignee: Black & Decker Incorporated (Stanley Black & Decker, Inc.)
• Original Assignee: Black & Decker Incorporated (Stanley Black & Decker, Inc.)
• Inventors: Puzio, Daniel, Parks, James R., Bean, Frederick R., Ceroll, Warren A., Gehret, Robert S., Kenyon, Maria I., Porter, David A., OʼBanion, Michael L., Brewer, Kevin
• Primary Examiner(s): Dexter, Clark F.
• Application Number:
  US09/179,815
• Time in Patent Office: 959 Days
• Field of Search: 834/772, 834/81, 836/65, 836/66, 834/71, 834/73, 834/771, 839/54, 83D/IG.1, 144/286.1, 144/286.5, 144/287, 814/88, 279/150, 409/182
• US Class Current: 83/477.2
• CPC Class Codes: B23D 45/062 the saw blade being adjustable according to depth or angle of cut
• CPC Class Codes: B23D 45/067 the saw blade being adjustable according to depth or angle of cut
• CPC Class Codes: B23D 45/068 the saw blade being adjustable according to depth or angle of cut B23D45/061, B23D45/065 take precedence
• CPC Class Codes: B23D 47/02 of frames; of guiding arrangements for work-table or saw-carrier
• 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: B27B 5/38 Devices for braking the circular saw blade or the saw spindle; Devices for damping vibrations of the circular saw blade, e.g. silencing B23D47/005 takes precedence
• CPC Class Codes: Y10S 83/01 Safety devices
• CPC Class Codes: Y10S 83/954 Knife changing
• CPC Class Codes: Y10T 83/04 Processes
• CPC Class Codes: Y10T 83/05 With reorientation of tool between cuts
• CPC Class Codes: Y10T 83/7705 Adjustable angular relationship
• CPC Class Codes: Y10T 83/7726 By movement of the tool
• CPC Class Codes: Y10T 83/773 Work-support includes passageway for tool [e.g., slotted table]
• CPC Class Codes: Y10T 83/7747 With means to permit replacement of tool
• CPC Class Codes: Y10T 83/7793 Means to rotate or oscillate tool
• CPC Class Codes: Y10T 83/8776 Constantly urged tool or tool support [e.g., spring biased]
• CPC Class Codes: Y10T 83/9377 Mounting of tool about rod-type shaft
• CPC Class Codes: Y10T 83/9379 At end of shaft
• CPC Class Codes: Y10T 83/9461 Resiliently biased connection
• CPC Class Codes: Y10T 83/9469 Adjustable
• CPC Class Codes: Y10T 83/9471 : Rectilinearly

Abstract

A machine tool has a work table which defines a working surface and has a cutting tool which is attached to and movable with respect to the work table. The cutting tool extends through a removable throat plate. An integral arbor wrench is provided which is accessible when the throat plate is removed. The wrench is designed to engage the arbor shaft to facilitate tool changing by preventing rotation of the arbor shaft. The wrench is also designed to not allow reassembling of the throat plate when the wrench is in engagement with the arbor shaft.

Claims

1. A cutting machine comprising:

a work table defining a work surface, said work table having an opening extending through said work surface;

a motor assembly mounted to said work table and including a rotatable arbor shaft driving a cutting device;

a throat plate removably disposed in said opening, said throat plate substantially covering said opening, said throat plate defining an aperture through which said cutting device extends;

a lever attached to said motor assembly and pivotable between a first and a second position;

said lever extending through said opening in said work surface of said work table when said lever is in said first position to thereby prevent said throat plate from being disposed in said opening;

a wrench attached to said lever, said wrench defining a slot which engages said arbor shaft to prevent rotation thereof when said lever is in said first position, said arbor shaft being free to rotate when said lever is in said second position.

2. The cutting machine of claim 1 further including biasing means for biasing said lever into said second position.