BOX OPENER
First Claim
Patent Images
1. A method for manufacturing a cutting tool which comprises the steps of:
- creating a blade member, wherein the blade member is planar and has a substantially rectangular shaped body portion with a first side, opposite and substantially parallel to a second side, the blade member having an extension projecting therefrom along the first side, with the extension having an inside edge substantially parallel to the first side, and with a cutting blade extending between the inside edge of the extension and the second side and substantially perpendicular respectively thereto, the blade member defining a blade axis parallel to the inside edge and the second edge and perpendicular to the cutting blade;
forming a handle, wherein the handle has a first flange extending therefrom and a second flange extending therefrom to establish a slit therebetween, and wherein each flange has a guiding edge located across the slit and opposite each other;
positioning the second side of the body portion in the slit between the first flange and the second flange to orient the cutting blade of the blade member substantially perpendicular to the guiding edges on the handle, and to distance the inside edge of the extension on the blade member from the guiding edges on the handle to establish a slot therebetween, with the slot aligned with the blade axis; and
securing the blade member between the flanges of the handle.
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Abstract
A cutting tool and its method for manufacture involves a blade member having an extension. Together, the blade member and extension are die cut from sheet metal and a cutting edge is then formed adjacent the extension. A metal or plastic handle is formed with a slit, and the blade member is positioned in the slit to leave the cutting edge exposed between the extension and the handle. The blade member is then secured to the handle.
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Citations
20 Claims
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1. A method for manufacturing a cutting tool which comprises the steps of:
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creating a blade member, wherein the blade member is planar and has a substantially rectangular shaped body portion with a first side, opposite and substantially parallel to a second side, the blade member having an extension projecting therefrom along the first side, with the extension having an inside edge substantially parallel to the first side, and with a cutting blade extending between the inside edge of the extension and the second side and substantially perpendicular respectively thereto, the blade member defining a blade axis parallel to the inside edge and the second edge and perpendicular to the cutting blade; forming a handle, wherein the handle has a first flange extending therefrom and a second flange extending therefrom to establish a slit therebetween, and wherein each flange has a guiding edge located across the slit and opposite each other; positioning the second side of the body portion in the slit between the first flange and the second flange to orient the cutting blade of the blade member substantially perpendicular to the guiding edges on the handle, and to distance the inside edge of the extension on the blade member from the guiding edges on the handle to establish a slot therebetween, with the slot aligned with the blade axis; and securing the blade member between the flanges of the handle. - View Dependent Claims (2, 4)
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3. A method as recited in claim I wherein the blade member is made of a plastic material and the forming step is accomplished by injection molding.
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5. A method as recited in claim I wherein the slit between the first flange and the second flange defines a distance “
- d”
, wherein the blade member has a width “
w”
, and wherein d>
w. - View Dependent Claims (6, 7, 8)
- d”
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9. A method for manufacturing a cutting tool which comprises the steps of:
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separating a blade member from a metal sheet, wherein the blade member has an extension projecting from a body portion; forming a cutting edge on the body portion adjacent the extension; creating a handle formed with a slit; positioning the blade member in the slit of the handle to leave the cutting edge exposed between the extension and the handle; and securing the blade member to the handle. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A cutting tool which comprises:
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a blade member, wherein the blade member is planar and is created with a substantially rectangular shaped body portion having a first side, opposite and substantially parallel to a second side, the blade member having an extension projecting therefrom along the first side, with the extension having an inside edge substantially parallel to the first side, and with a cutting blade extending between the inside edge of the projection and the second side and substantially perpendicular respectively thereto, the blade member defining a blade axis parallel to the inside edge and the second edge and perpendicular to the cutting blade; and a handle, wherein the handle is formed with a first flange extending therefrom and a second flange extending therefrom to establish a slit therebetween, and wherein each flange has a guiding edge located across the slit and opposite each other, and wherein the second side of the body portion is positioned in the slit between the first flange and the second flange to orient the cutting blade of the blade member substantially perpendicular to the guiding edges on the handle, and to distance the inside edge of the projection on the blade member from the guiding edges on the handle to establish a slot therebetween, with the slot aligned with the blade axis, and further wherein the blade member is secured between the flanges of the handle.
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Specification