Mounting base for wear member
A mounting base for removably coupling a wear member to a tool may have a generally planar first base portion, which may have an inward surface configured to be attached to the tool. The mounting base may also have a generally planar second base portion extending from the first base portion in a direction generally perpendicular to the first base portion. The second base portion may have an inward surface configured to be attached to the tool. The first base portion may define an opening including a notch-shaped portion and a rectangle-shaped portion.
1. A mounting base for removably coupling a wear member to a tool, comprising:
a generally planar first base portion having an inward surface configured to be attached to the tool; and
a generally planar second base portion extending from the first base portion in a direction generally perpendicular to the first base portion, and having an inward surface configured to be attached to the tool,
wherein the first base portion defines an opening including a notch-shaped portion and a rectangle-shaped portion, wherein the notch-shaped portion includes a pair of engagement surfaces extending from the inward surface of the first base portion to an outward surface of the first base portion opposite the inward surface, and wherein the engagement surfaces define an inside perimeter of the notch-shaped portion at the inward surface; the engagement surfaces define an outside perimeter of the notch-shaped portion at the outward surface; and the inside perimeter is larger than the outside perimeter.
2. The mounting base of claim 1 , wherein:
the first base portion has a first chamfer surface extending from an end of the inward surface of the first base portion, and away from the tool when the inward surface is attached to the tool; and
the second base portion has a second chamfer surface extending from an end of the inward surface of the second base portion, and away from the tool when the inward surface of the second base portion is attached to the tool.
3. The mounting base of claim 2 , wherein a ratio of a width of the first chamfer surface to a width of the second chamfer surface, along a direction generally parallel to both the first and second base portions, is between about 2 and about 3.
4. The mounting base of claim 1 , wherein the second base portion has a pair of opposite sides that converge toward each other as they extend away from the first base portion.
5. The mounting base of claim 1 , wherein the inward surface of the first base portion is concave.
6. The mounting base of claim 1 , wherein the first base portion defines a plurality of loading pads configured to contact the tool and the wear member.
7. The mounting base of claim 6 , wherein the plurality of loading pads are protrusions of the first base portion.
8. The mounting base of claim 7 , wherein the protrusions are generally plateau-shaped.
9. The mounting base of claim 6 , wherein the plurality of loading pads are positioned at corners of the first base portion.
10. The mounting base of claim 6 , wherein the loading pads are configured to receive loads from the wear member in directions generally perpendicular to the planar first base portion, generally perpendicular to the planar second base portion, and generally parallel to both the planar first base portion and the planar second base portion.
11. The mounting base of claim 1 , wherein a ratio of a maximum width of the first base portion to a maximum width of the second base portion, along a direction generally parallel to both the first and second base portions, is between about 1.75 and about 2.25.
12. The mounting base of claim 1 , wherein a ratio of a maximum length of the first base portion, along a direction generally perpendicular to the second base portion, to a maximum height of the second base portion, along a direction generally perpendicular to the first base portion, is between about 1.7 and about 1.8.