# US 9,434,015 B2 · Saw assembly with bevel gear drivetrain > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,434,015 B2 - Document ID: US9434015B2 - Status: Granted - Kind: B2 - Application number: 14/242,147 - Filed: 2014-04-01 - Published: 2014-07-31 - Granted: 2016-09-06 - Earliest claimed: 2011-09-30 - Assignees: Robert Bosch GmbH - Applicants: Robert Bosch Tool Corporation; Robert Bosch GmbH - Inventors: Jaime Moreno; Kevin Wasielewski; Arturo Castro; Philip Branker - Web page: https://patentgrep.com/patent/US9434015B2 ## CPC - B23D 47/12: of drives for circular saw blades - B23Q 5/027: reciprocating members - B23Q 9/0028: {the guide means being fixed only on the machine} - B25F 5/001: {Gearings, speed selectors, clutches or the like specially adapted for rotary tools} - B25F 5/006: {Vibration damping means} - B25F 5/021: {with guiding devices (guiding devices for hand tools on stands or supports B25H1/0078)} - B27B 9/04: Guiding equipment, e.g. for cutting panels {(circular sawing machines for dividing plates in parts of determined size, e.g. panels B27B5/06)} - B23D: PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR (making toothed gears or the like B23F; cutting metal by applying heat locally B23K; arrangements for copying or controlling B23Q) - 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 - B25F: COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR {(machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass B23P23/00 and subgroups)} - B27B: SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR (saws specially adapted for pruning or debranching A01G3/08; sawing apparatus specially adapted for felling trees A01G23/091; features not restricted to a particular type of wood saw B23D, e.g. attaching saw blades B23D51/00; machine tool frames, beds, pillars or like members, in general B23Q1/01) ## Abstract A saw assembly including a housing, a motor, a first bevel gear, and a second bevel gear. The motor is located in the housing and includes a motor shaft configured for rotation relative to the housing. The first bevel gear is operably connected to the motor shaft for rotation with the motor shaft. The second bevel gear is operably engaged with the first bevel gear, such that rotation of the first bevel gear causes rotation of the second bevel gear. The arbor assembly is operably connected to the second bevel gear. The arbor assembly is accessible for mounting an accessory thereto from an accessory side of the housing. The arbor assembly defines a first axis of rotation. The first bevel gear is located between the second bevel gear and the accessory side of the housing along the first axis of rotation. ## Claims ### Claim 1 A saw assembly, comprising: a housing; a motor located in the housing and including a motor shaft configured for rotation relative to the housing; a first bevel gear operably connected to the motor shaft for rotation with the motor shaft; a second bevel gear operably engaged with the first bevel gear, such that rotation of the first bevel gear causes rotation of the second bevel gear; an arbor assembly operably connected to the second bevel gear, the arbor assembly accessible for mounting a saw blade thereto from an accessory side of the housing, and the arbor assembly defining a first axis of rotation; wherein the first bevel gear is located between the second bevel gear and the accessory side of the housing along the first axis of rotation; a first roller bearing member at least partially positioned in a bearing recess defined by a housing of the power tool and configured to rotatablv support a bearing end of the arbor assembly opposite from the accessory end along the first axis of rotation; a thrust bearing member separate from the first roller bearing member and positioned in the bearing recess and against an end surface of the bearing end of the arbor assembly, the thrust bearing member configured to limit axial movement of the arbor assembly along the first axis of rotation; wherein the first bevel gear defines a second axis of rotation; and wherein the second axis of rotation intersects the arbor assembly between the second bevel gear and the accessory side of the housing. ### Claim 2 (depends on 1) The saw assembly of claim 1, wherein the second bevel gear is positioned between the first roller bearing member and the first bevel gear along the first axis of rotation. ### Claim 3 (depends on 2) The saw assembly of claim 2, further comprising: a second roller bearing member supported by the housing and configured to rotatably support the arbor assembly, the second roller bearing member located between the accessory side of the housing and the first bevel gear along the first axis of rotation. ### Claim 4 (depends on 3) The saw assembly of claim 3, wherein the first bevel gear is located between the second bevel gear and the second roller bearing member along the first axis of rotation. ### Claim 5 (depends on 1) The saw assembly of claim 1, wherein the first axis of rotation is substantially perpendicular to the second axis of rotation. ### Claim 6 (depends on 1) The saw assembly of claim 1, wherein the first bevel gear is threadingly engaged with the motor shaft. ### Claim 7 (depends on 1) The saw assembly of claim 1, wherein the first axis of rotation intersects the second axis of rotation. ### Claim 8 A power tool, comprising: a motor; a first bevel gear operably connected to the motor for rotation; a second bevel gear operably engaged with the first bevel gear, such that rotation of the first bevel gear causes rotation of the second bevel gear; an arbor assembly operably connected to the second bevel gear, the arbor assembly defining a first axis of rotation and including an accessory end accessible for mounting an accessory thereto; a first roller bearing member at least partially positioned in a bearing recess defined by a housing of the power tool and configured to rotatably support a bearing end of the arbor assembly opposite from the accessory end along the first axis of rotation; and a thrust bearing member separate from the first roller bearing member and positioned in the bearing recess against an end surface of the bearing end of the arbor assembly, the thrust bearing member configured to limit axial movement of the arbor assembly along the first axis of rotation, wherein the first bevel gear is located between the second bevel gear and the accessory end of the arbor assembly along the first axis of rotation. ### Claim 9 (depends on 8) The power tool of claim 8, wherein the second bevel gear is positioned between the first roller bearing member and the first bevel gear along the first axis of rotation. ### Claim 10 (depends on 9) The power tool of claim 9, further comprising: a second roller bearing member supported by the housing and configured to rotatably support the arbor assembly, the second roller bearing member located between the accessory end and the first bevel gear along the first axis of rotation. ### Claim 11 (depends on 10) The power tool of claim 10, wherein the first bevel gear is located between the second bevel gear and the second roller bearing member along the first axis of rotation. ### Claim 12 (depends on 8) The power tool of claim 8, wherein: the first bevel gear defines a second axis of rotation; and the second axis of rotation intersects the arbor assembly between the second bevel gear and the accessory end. ### Claim 13 (depends on 12) The power tool of claim 12, wherein the first axis of rotation is substantially perpendicular to the second axis of rotation. ### Claim 14 (depends on 8) The power tool of claim 8, wherein the first bevel gear is threadingly engaged with a motor shaft of the motor. ### Claim 15 (depends on 8) The power tool of claim 8, wherein the thrust bearing member is positioned completely between the housing and the arbor assembly along the first axis of rotation.