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US 9,707,694 B2Granted
Push block for a woodworking apparatus
AssigneeMicro Jig, Inc.
InventorHenry Wang
Life of this patent
Estimating the term…
Abstract
A push block for a woodworking tool includes a heel member at an end of the push block and the heel member is passively actuatable to an extended position to engage a trailing end surface of a work piece to advance the work piece by a working element. The push block also includes a wall member along a first side of the push block to serve as a barrier between a cutting element and an operator's hand. In addition, the push block includes a handle that is disposed obliquely relative to first and second sides and a longitudinal axis of the push block.
Claims20
A push block for advancing a work piece on a cutting apparatus, comprising:
- a main body portion having a flat bottom surface for engaging a surface of a work piece, a top surface, a first end, a second end, first and second side surfaces each spanning from the top surface to the bottom surface and from the first end to the second end, wherein the main body portion is characterized by a length from the first end and to the second end, and a width between side surfaces, and a longitudinal axis along the length;
- a handle, disposed between the first and second ends, extending outward from the top surface of the main body portion, said handle having a first base disposed toward the first end and a second base disposed toward the second end, a line between the first base and the second base being more closely aligned with the longitudinal axis than with the width of the main body portion, and
- at least one heel member attached to the push block at the second end of the main body portion, and the at least one heel member pivots from a retracted position to an extended position in the absence of an external force other than gravity, and in the extended position the at least one heel member has a flat surface that is disposed at an angle relative to the bottom surface of the main body portion to abut a trailing end surface of the work piece;
- wherein the at least one heel member pivots about a pivot axis that is parallel to the longitudinal axis.
1 more element
A push block for advancing a work piece on a cutting apparatus, comprising:
- a main body portion having a flat bottom surface for engaging a surface of a work piece, a top surface, a first end, a second end and a longitudinal axis from the first end to the second end, and the longitudinal axis is parallel to a direction of travel of the push block on the cutting apparatus;
- a handle, disposed between the first and second ends, extending outward from the top surface of the main body portion, said handle having a first base disposed toward the first end and a second base disposed toward the second end, and
- the longitudinal axis is in a direction from the first base to the second base or from the second base to the first base;
- at least one heel member attached to the push block at the second end of the main body portion, and the at least one heel member pivots from a retracted position to an extended position in the absence of an external force other than gravity, and in the extended position the heel member has a flat surface that is disposed at an angle relative to the bottom surface of the main body portion, transverse to the longitudinal axis, and at the first end facing toward the second end to abut a trailing end surface of the work piece;
- wherein the least one heel member pivots about a pivot axis that is parallel to the longitudinal axis of the main body portion.
2 more elements
A push block for advancing a work piece on a cutting apparatus, comprising:
- a main body portion having a flat bottom surface for engaging a first surface of the work piece, a top surface, a first end, a second end and a longitudinal axis from the first end to the second end, and the longitudinal axis is parallel to a direction of travel of the push block on the cutting apparatus and the flat bottom surface extends from the first end to the second end;
- a handle extending outward from the top surface of the main body portion;
- a first pair of heel members pivotally attached to the push block at the first end of the main body portion, and each first heel member pivots between an extended position to engage a second surface other than the first surface of the work piece and a retracted position;
- a second pair of heel members pivotally attached to the push block at the second end of the main body portion, and each second heel member pivots between an extended position to engage the second surface of a work piece and a retracted position;
- and,
- wherein each heel member pivots from the retracted position to the extended position in the absence of an external force other than gravity or an internal force associated with the heel member.
3 more elements
Dependencies are inferred from the claim text.