Table saw fence with adjustment mechanism
AssigneesRobert Bosch Tool Corporation, Robert Bosch GmbH
InventorsWilliam Shiel, Eric Laliberte
Life of this patent
Estimating the term…
Abstract
A fence assembly configured to guide a workpiece with respect to a blade of a saw device includes a fence that is supported by rails for sliding movement relative to a work surface. Opposed ends of the fence are supported on the rails via rail engagement members. The fence assembly includes a fence angle adjustment mechanism associated with a housing of one of the rail engagement members. The fence angle adjustment mechanism includes biasing elements working in conjunction with an adjustment screw to adjust the position of the fence with respect to parallelism to the blade.
Claims19
A fence assembly that is configured to guide a workpiece in parallel to a blade of a saw device, the fence assembly being supported by a rail relative to a work surface of the saw device, the fence assembly comprising:
- a fence including
- a fence first end, and
- a fence second end that is opposed to the fence first end;
- a rail engagement member coupled to the fence first end and supported on the rail, the rail engagement member including a first housing, the first housing having
- a body portion that is disposed inside the fence, and
- a flange portion that extends from an outer end of the body portion, is disposed outside the fence and is configured to engage the rail;
- and
- a fence angle adjustment mechanism associated with the rail engagement member, the fence angle adjustment mechanism configured to adjust the alignment of the fence to extend in parallel to the blade when the fence assembly is supported by the rail, the fence angle adjustment mechanism including
- an outer fastener that connects the fence to the body portion, the outer fastener providing an axis of rotation of the fence during adjustment of the alignment of the fence,
- an inner fastener that connects the fence to the body portion, the inner fastener being parallel to and spaced apart from the outer fastener,
- an adjustment fastener that is connected to the body portion, the adjustment fastener being perpendicular to and spaced apart from the inner fastener and the outer fastener, wherein rotation of the adjustment fastener with respect to the body portion provides adjustment of an angular orientation of the fence about the axis of rotation, and
- an inner elastic member disposed between the fence and the body portion, the inner elastic member configured to bias the fence toward a head of the adjustment fastener.
A method of adjusting the alignment of a guide fence of a saw device to extend parallel to a cutting blade of the saw device using a fence angle adjustment mechanism,
- the fence supported by a rail for sliding movement relative to a work surface of the saw device, and an end of the fence supported on the rail via a rail engagement member, the fence angle adjustment mechanism associated with a housing of the rail engagement member,
- the fence angle adjustment mechanism including
- an outer fastener that connects the fence to the housing,
- an inner fastener that connects the fence to the body housing, the inner fastener being parallel to and spaced apart from the outer fastener,
- an adjustment fastener that connects the fence to the housing, the adjustment fastener being perpendicular to and spaced apart from the inner fastener and the outer fastener, wherein rotation of the adjustment fastener with respect to the housing provides adjustment of an angular orientation of the fence about an axis of rotation, and
- an inner elastic member disposed between the fence and the housing, the inner elastic member configured to bias the fence toward a head of the adjustment fastener,
- the method comprising the following method steps:
- rotating both the inner fastener and the outer fastener so as to loosen both the inner fastener and the outer fastener;
- rotating the adjustment fastener, wherein rotation of the adjustment fastener in a first direction moves the fence towards the housing and rotation of the adjustment fastener in a second direction moves the fence away from the housing, where the second direction is opposed to the first direction and wherein during the step of rotating the adjustment fastener the fence is moved into alignment with the cutting blade;
- following rotating the adjustment fastener, rotating the outer fastener so as to tighten the outer fastener;
- following rotating the outer fastener so as to tighten the outer fastener, rotating the inner fastener so as to tighten the inner fastener.
A fence assembly that is configured to guide a workpiece in parallel to a blade of a saw device, the fence assembly being supported by one or more rails relative to a work surface of the saw device, the fence assembly comprising:
- a fence including
- a fence first end, and
- a fence second end that is opposed to the fence first end;
- a first rail engagement member coupled to the fence first end and supported on a first one of the rails, the first rail engagement member including a first housing, the first housing having
- a body portion that is disposed inside the fence, and
- a flange portion that extends from an outer end of the body portion, is disposed outside the fence and is configured to engage the first one of the rails;
- a second rail engagement member coupled to the fence second end and supported on a second one of the rails, the second rail engagement member including a second housing and a rail engagement device that is configured to engage the second one of the rails;
- and
- a fence angle adjustment mechanism associated with the first rail engagement member, the fence angle adjustment mechanism configured to adjust the alignment of the fence to extend parallel to the blade when the fence assembly is supported by the rail, the fence angle adjustment mechanism including
- an outer fastener that connects the fence to the body portion, the outer fastener providing an axis of rotation of the fence during alignment of the fence,
- an inner fastener that connects the fence to the body portion, the inner fastener being parallel to and spaced apart from the outer fastener,
- an adjustment fastener that is connected to the body portion, the adjustment fastener being perpendicular to and spaced apart from the inner fastener and the outer fastener, wherein rotation of the adjustment fastener with respect to the body portion provides adjustment of an angular orientation of the fence about the axis of rotation, and
- an inner elastic member disposed between the fence and the body portion, the inner elastic member configured to bias the fence toward a head of the adjustment fastener.
Dependencies are inferred from the claim text.