Single blade nail cutter
A nail cutter is provided that includes a blade and a unitary body. The blade includes a cutting edge. The unitary body includes a first member, a second member, a third member, and a plurality of flexible hinges. The blade extends from a proximal end of the first member. A proximal end of the second member is disposed opposite the cutting edge of the blade. The plurality of flexible hinges are configured such that, when a proximal end of the third member is transitioned from a first position to a second position, the unitary body flexes at the plurality of flexible hinges so as to decrease a distance between the cutting edge and the proximal end of the second member. Other aspects and features are also claimed and described.
1 . A nail cutter comprising:
a first member, wherein a first end portion of the first member includes a blade, wherein the blade includes a cutting edge;
a second member, wherein a first end portion of the second member does not include a blade, wherein the second member is coupled to the first member such that the first member is movable relative to the second member between first and second positions, wherein when the first member moves from the first position to the second position, the blade of the first member moves toward the first end portion of the second member; and
a third member that is coupled to the first member and is movable between third and fourth positions, wherein the third member is configured to move the first member, relative to the second member, from the first position to the second position when the third member moves from the third position to the fourth position, wherein the third member is structured such that a force for a nail cutting operation is applied to the third member closer to a first end portion of the third member than to a second end portion of the third member,
wherein the second member includes at least one fulcrum on which the third member pivots as the third member is pressed to move the first end portion of the third member toward the first end portion of the second member.
2 . The nail cutter of claim 1 , wherein a pivot point of the third member is further from the blade than a point of the third member on which the force is applied for the nail cutting operation.
3 . The nail cutter of claim 1 , wherein:
the blade of the first member comprises a first material; and
the second member comprises a second material having a hardness that is lower than a hardness of the first material.
4 . The nail cutter of claim 3 , wherein:
the first material comprises a metal; and
the second material comprises a polymeric material.
5 . The nail cutter of claim 3 , wherein the hardness of the first material is at least 55 HRC.
6 . The nail cutter of claim 1 , wherein the blade of the first member is integral with a body of the first member.
7 . The nail cutter of claim 1 , wherein:
the cutting edge of the blade of the first member is curved in a first direction and in a second direction, wherein the first direction is perpendicular to the second direction.
8 . The nail cutter of claim 1 , wherein the third member is coupled to the first member such that the first end portion of the third member moves toward the first end portion of the second member while the third member moves from the third position to the fourth position.
9 . The nail cutter of claim 1 , wherein:
the second end portion of the third member is pivotably coupled to a second end portion of the first member; and
the first member is pivotably coupled to the second member at a location disposed between the first end portion of the second member and a second end portion of the second member.
10 . The nail cutter of claim 1 , wherein the second member is coupled to the first member such that the blade of the first member is disposed closer to a second end portion of the second member when the first member is in the second position than when the first member is in the first position.
11 . The nail cutter of claim 1 , wherein the at least one fulcrum is disposed between a pivot pin coupling the first member to the third member and a location at which force is applied to the third member during the nail cutting operation.
12 . A nail cutter comprising:
a first member, wherein a first end portion of the first member includes a blade, wherein the blade includes a cutting edge; and
a second member including a stop, wherein the stop is configured to limit a force exerted by the cutting edge of the blade of the first member on the second member when moving the blade of the first member toward a first end portion of the second member,
wherein:
the first end portion of the second member does not include a blade;
the second member is coupled to the first member such that the first member is movable relative to the second member between first and second positions, wherein when the first member moves from the first position to the second position, the blade of the first member moves toward the first end portion of the second member; and
a third member that is coupled to the first member and is movable between third and fourth positions, wherein the third member is configured to move the first member, relative to the second member, from the first position to the second position when the third member moves from the third position to the fourth position,
wherein the third member is structured such that a force for a nail cutting operation is applied to the third member closer to a first end portion of the third member than to a second end portion of the third member,
wherein the second member includes at least one fulcrum on which the third member pivots as the third member is pressed to move the first end portion of the third member toward the first end portion of the second member.
13 . The nail cutter of claim 12 , wherein a pivot point of the third member is further from the blade than a point of the third member on which the force is applied for the nail cutting operation.
14 . The nail cutter of claim 12 , wherein the stop comprises a first protrusion and a second protrusion, wherein the first and second protrusions extend from opposite sides of the second member and are configured to cooperate with each other to limit advancement of the cutting edge of the blade.
15 . A method of cutting a nail of a human, the method comprising:
disposing the nail between a blade of a first member of a nail cutter and a first end portion of a second member of the nail cutter, wherein the first end portion of the second member does not include a blade;
moving the blade of the first member toward the first end portion of the second member while the nail is disposed between a cutting edge of the blade of the first member and the first end portion of the second member such that the blade of the first member cuts the nail; and
providing the second member to include at least one fulcrum on which a third member of the nail cutter pivots,
wherein:
moving the blade of the first member toward the first end portion of the second member comprises pressing the third member at a location, closer to a first end portion of the third member than to a second end portion of the third member so that the third member pivots on the at least one fulcrum of the second member.
16 . The method of claim 15 , further comprising:
providing the third member with a pivot point that is further from the blade than a point of the third member on which the force is applied for the nail cutting operation.
17 . The method of claim 15 , further comprising:
providing the second member with a stop configured to limit a force exerted by the cutting edge of the blade of the first member on the second member when moving the blade of the first member toward the first end portion of the second member.
18 . The method of claim 17 , further comprising:
structuring the stop to control a depth of a recess formed in the second member by the cutting edge of the blade.