Nail clipper
A nail clipper including threaded supporting shaft and threaded inner wall of a blade body the most away from the lever. The threaded supporting shaft and the threaded inner wall of the blade body can be screwed together clockwise and counterclockwise to adjust the distance between the two cutting edges.
This invention relates to a nail clipper, and, more particularly, to such a device having adjustable distance between two cutting edges for cutting healthy and sick fungus nails. And more, the two cutting edges of the nail clipper can be adjusted to touch with each other for better protecting children from misusing it.
DESCRIPTION OF THE RELATED ARTThe first blade body 111 has a first cutting edge 103 at the first end and has a first supporting shaft hole adjacent to the first cutting edge 103. The second blade body 112 has a second cutting edge 104 at the third end and has a second supporting shaft hole adjacent to the second cutting edge 104. The second end of the first blade body 111 and the fourth end of the second blade body 112 are fixed with each other and a cutting mouth is formed by the first cutting edge 103 and second cutting edge 104 facing with each other.
The lever 115 is operated for bringing the two cutting edges 103, 104 respectively of the two blade bodies 111, 112 into press contact with each other by leverage. And, the supporting shaft 117 is disposed through the first and second supporting shaft holes respectively of the first and second blade bodies 111 and 112 and is coupled with the lever 115. The first supporting shaft and the second supporting shaft are not visible in
The supporting shaft 117 is disposed and confined in the two supporting shaft holes 108, 109 and the supporting shaft 117 is rotatable within a range of 360 degrees in the first and second supporting shaft holes 108, 109. Very commonly seen in typical nail clipper, the first supporting hole 108 of the first blade body 111 is in round (or cylinder if the thickness of the first blade body 111 is taken into consideration) and the second supporting hole 109 of the second blade body 112 is not in round. By rotating the lever 115 clockwise or counterclockwise centering around the supporting shaft 117 can respectively rotate the supporting shaft 117 in the two holes 108 and 109 clockwise or counterclockwise. By levering the lever 115 against the second blade body 112 will move the second blade body 112 along the supporting shaft 117 toward the first blade body 111 bringing the two cutting edges 103 and 104 respectively of the two blade bodies 111 and 112 into press contact with each other.
The present invention is not so limited although the embodiment of the nail clipper of
Another type of a nail clipper publicized by an USA patent number U.S. Pat. No. 7,020,964 titled as “Nail clipper and nail cutter, lever and supporting shaft for the same” includes one more member “nail clipper body” than that of the conventional nail clipper of
The types of the nail clippers revealed above have characterized that the distance between two cutting edges is fixed and is not adjustable. The distance between the first and second cutting edges respectively of the first and second blade bodies can also be called in short “cutting mouth” in the present invention.
The cutting mouths of the existed nail clippers have been suitably designed for the thickness of healthy nail and they are sometimes are too narrow for rooming the fungus nail which usually grows thicker and more irregular than a healthy nail. If the cutting mouth has been designed to be large enough for the thick fungus nail then it will be inconvenient for precisely cutting thin and normal nail. If the cutting mouth has been designed for rooming healthy nail then it will be too narrow for the fungus nail. This means that a nail clipper with an adjustable cutting mouth is needed. Another advantage of a nail clipper with adjustable cutting mouth is that if the two cutting edges of a nail clipper can be adjusted to touch with each other or the distance between the two cutting edges is too small to room anything then the nail clipper will be much safer to children.
SUMMARY OF THE INVENTIONIt is a first objective of the present invention to provide a nail clipper of which the distance between its two cutting edges is adjustable for healthy and fungus nail cuttings.
It is a second objective of the present invention to provide a nail clipper of which the two cutting edges can be adjusted to touch each other when it is not in service for protecting children from misusing it.
The first blade body 111 has a first cutting edge 103 at the first end and has a first supporting shaft hole adjacent to the first cutting edge 103. The second blade body 112 has a second cutting edge 104 at the third end and has a second supporting shaft hole adjacent to the second cutting edge 104. The second end of the first blade body 111 and the fourth end of the second blade body 112 are fixed with each other and a cutting mouth is formed by the first cutting edge 103 and second cutting edge 104 facing with each other.
The lever 115 is operated for bringing the two cutting edges 103, 104 respectively of the two blade bodies 111, 112 into press contact with each other by leverage. And, the supporting shaft 117 is disposed through the first and second supporting shaft holes respectively of the first and second blade bodies 111 and 112 and is coupled with the lever 115. The first supporting shaft and the second supporting shaft are not visible in
The supporting shaft 117 is disposed and confined in the two supporting shaft holes 108, 109 and the supporting shaft 117 is rotatable within a range of 360 degrees in the first and second supporting shaft holes 108, 109. Very commonly seen in typical nail clipper, the first supporting hole 108 of the first blade body 111 is in round (or cylinder if the thickness of the first blade body 111 is taken into consideration) and the second supporting hole 109 of the second blade body 112 is not in round. By rotating the lever 115 clockwise or counterclockwise centering around the supporting shaft 117 can respectively rotate the supporting shaft 117 in the two holes 108 and 109 clockwise or counterclockwise. By levering the lever 115 against the second blade body 112 will move the second blade body 112 along the supporting shaft 117 toward the first blade body 111 bringing the two cutting edges 103 and 104 respectively of the two blade bodies 111 and 112 into press contact with each other.
The present invention is not so limited although the embodiment of the nail clipper of
Another type of a nail clipper publicized by an USA patent number U.S. Pat. No. 7,020,964 titled as “Nail clipper and nail cutter, lever and supporting shaft for the same” includes one more member “nail clipper body” than that of the conventional nail clipper of
The types of the nail clippers revealed above have characterized that the distance between two cutting edges is fixed and is not adjustable. The distance between the first and second cutting edges respectively of the first and second blade bodies can also be called in short “cutting mouth” in the present invention.
The cutting mouths of the existed nail clippers have been suitably designed for the thickness of healthy nail and they are sometimes are too narrow for rooming the fungus nail which usually grows thicker and more irregular than a healthy nail. If the cutting mouth has been designed to be large enough for the thick fungus nail then it will be inconvenient for precisely cutting thin and normal nail. If the cutting mouth has been designed for rooming healthy nail then it will be too narrow for the fungus nail. This means that a nail clipper with an adjustable cutting mouth is needed. Another advantage of a nail clipper with adjustable cutting mouth is that if the two cutting edges of a nail clipper can be adjusted to touch with each other or the distance between the two cutting edges is too small to room anything then the nail clipper will be much safer to children.
For all the types of the nail clippers revealed in the present invention, at least a portion of the supporting shaft is threaded and at least the threaded portion of the supporting shaft is in cylindrical shape, and the inner wall of the supporting shaft hole of a blade body the most away from the lever is threaded and in cylindrical shape, and the threaded portion of the supporting shaft and threaded inner wall of the first supporting shaft hole are screwed with each other clockwise or counterclockwise to adjust the distance between the first and second cutting edges. To perform the screwing motion, the threaded inner wall of the supporting shaft and the threaded portion of the supporting shaft are in cylindrical shape although the present invention is not so limited.
Due to the thickness of the blade body may be too thin for being built with enough threads on the inner wall of its supporting shaft hole the thickness of a portion or all of the blade body may be increased to enlarge the threading area of the inner wall of the supporting shaft hole. By using the nail clipper of
A side facing out of the stopper 155 of the supporting shaft 117 or the end facing out away from the hook-like groove of the supporting shaft 117 can also be carved for the screwdriver to rotate the supporting shaft 117 to adjust the distance between two cutting edges 103, 104. For example, the side facing out of the stopper 155 can be carved as flat or Phillips screw types which are respectively shown in
Another nail clipper has been revealed in an USA patent number U.S. Pat. No. 7,020,964 titled “Nail clipper and nail cutter, lever and supporting shaft for the same”. More detailed information of the patent can be referred by the patent number U.S. Pat. No. 7,020,964.
Similar to the embodiment of
By using the nail clipper of
A side facing out of the stopper 855 of the supporting shaft 117 or the end facing out away from the hook-like groove of the supporting shaft 817 can also be carved for the screwdriver to rotate the supporting shaft 817 to adjust the distance between two cutting edges 803, 804. For example, the side facing out of the stopper 855 can be carved as flat or Phillips screw types which are respectively shown in
Due to the thickness of the blade body may be too thin for being built with enough threads on the inner wall of its supporting shaft hole the thickness of a portion or all of the blade body may be increased to enlarge the threading area of the inner wall of the supporting shaft hole. By using the nail clipper of
A nail clipper with its two cutting edges adjusted to touch with each other when not in service provides better safety to children. By using the nail clipper of
The present invention is not limited to any particular coupling between the lever and the supporting shaft. The present invention is not limited to any particular coupling between the lever and the nail clipper body. The present invention is not limited to any particular shape and size of the supporting shaft hole of the blade body more adjacent to the lever. For example, for all kinds of the nail clippers revealed in the present invention, the supporting shaft hole of a blade body more adjacent to the lever doesn't have to be in cylindrical shape.
Claims
1. A nail clipper, comprising:
- a first blade body having a first cutting edge at a first end, and the first blade body having a first supporting shaft hole adjacent to the first cutting edge;
- a second blade body having a second cutting edge at a second end, and the second blade body having a second supporting shaft hole adjacent to the second cutting edge, and the second blade body fixed with the first blade body and the second cutting edge of the second blade body and first cutting edge of the first blade body facing with each other to form a cutting mouth;
- a lever contacted to the second blade body for bringing the first and second cutting edges into press contact with each other by leverage;
- a supporting shaft disposed through the first supporting shaft hole of the first blade body, through the second supporting shaft hole of the second blade body and coupled with the lever, wherein
- the supporting shaft is rotatable within a range of 360 degrees in the first and second supporting shaft holes and by rotating the lever centering around the supporting shaft clockwise or counterclockwise rotates the supporting shaft in the first and second supporting shaft holes clockwise or counterclockwise, and
- at least a portion of the supporting shaft is threaded and at least the threaded portion of the supporting shaft is in cylindrical shape, and the inner wall of the first supporting shaft hole is threaded and in cylindrical shape, and the threaded portion of the supporting shaft and the threaded inner wall of the first supporting shaft hole are screwed with each other clockwise or counterclockwise either by rotating the lever centering around the supporting shaft or by applying screwdriver to rotate the supporting shaft clockwise or counterclockwise to adjust the distance between the first and second cutting edges.
2. The nail clipper of claim 1, wherein the first blade body further comprises
- a third end opposite to the first end, and the second blade body further comprises a fourth end opposite to the second end, and the third end fixes with the fourth end.
3. The nail clipper of claim 1, wherein the first blade body further comprises
- a third end opposite to the first end, and the third end fixes with the second blade body.
4. The nail clipper of claim 1, wherein the second blade body further comprises a third end opposite to the second end, and the third end fixes with the first blade body.
5. The nail clipper of claim 1, wherein the supporting shaft screws with the first supporting shaft hole to have the first cutting edge of the first blade body and the second cutting edge of the second blade body touch with each other for providing better safety to children.
6. The nail clipper of claim 2, wherein the supporting shaft screws with the first supporting shaft hole to have the first cutting edge of the first blade body and the second cutting edge of the second blade body touch with each other for providing better safety to children.
7. The nail clipper of claim 3, wherein the supporting shaft screws with the first supporting shaft hole to have the first cutting edge of the first blade body and the second cutting edge of the second blade body touch with each other for providing better safety to children.
8. The nail clipper of claim 4, wherein the supporting shaft screws with the first supporting shaft hole to have the first cutting edge of the first blade body and the second cutting edge of the second blade body touch with each other for providing better safety to children.
9. The nail clipper of claim 1, wherein the thickness of at least a portion of the first blade body is increased for increasing the threading area of the inner wall of the first supporting shaft hole.
10. The nail clipper of claim 9, wherein the first blade body further comprises a third end opposite to the first end, and the second blade body further comprises a fourth end opposite to the second end, and the third end fixes with the fourth end.
11. The nail clipper of claim 9, wherein the first blade body further comprises a third end opposite to the first end, and the third end fixes with the second blade body.
12. The nail clipper of claim 9, wherein the second blade body further comprises a third end opposite to the second end, and the third end fixes with the first blade body.
13. The nail clipper of claim 9, wherein the supporting shaft screws with the first supporting shaft hole to have the first cutting edge of the first blade body and the second cutting edge of the second blade body touch with each other for providing better safety to children.
14. The nail clipper of claim 10, wherein the supporting shaft screws with the first supporting shaft hole to have the first cutting edge of the first blade body and the second cutting edge of the second blade body touch with each other for providing better safety to children.
15. The nail clipper of claim 11, wherein the supporting shaft screws with the first supporting shaft hole to have the first cutting edge of the first blade body and the second cutting edge of the second blade body touch with each other for providing better safety to children.
16. The nail clipper of claim 12, wherein the supporting shaft screws with the first supporting shaft hole to have the first cutting edge of the first blade body and the second cutting edge of the second blade body touch with each other for providing better safety to children.
17. A nail clipper, comprising:
- a nail cutter comprises a first blade body and a second blade body, wherein the first blade body has a first cutting edge at a first end, and the first blade body has a first supporting shaft hole adjacent to the first cutting edge, and
- the second blade body has a second cutting edge at a second end, and the second blade body has a second supporting shaft hole adjacent to the second cutting edge, the second blade body fixes with the first blade body and the second cutting edge of the second blade body and first cutting edge of the first blade body faces with each other to form a cutting mouth;
- a nail clipper body having a third supporting shaft hole;
- a lever for bringing the first and second cutting edges into press contact with each other by leverage;
- a supporting shaft disposed through the first supporting shaft hole of the first blade body, through the second supporting shaft hole of the second blade body, through the third supporting shaft of the nail clipper body and coupled with the lever, wherein
- the lever is positioned on the upper side of the nail clipper body, and the nail cutter is positioned on a lower side of the nail clipper body and the second blade body of the nail cutter is more adjacent to the nail clipper body,
- the nail cutter is rotatable centering around a supporting shaft within a range of 360 degrees without interference of an obstacle,
- the supporting shaft is rotatable within a range of 360 degrees in the first, second and third supporting shaft holes, and by rotating the lever centering around the supporting shaft clockwise or counterclockwise rotates the supporting shaft in the first, second and third supporting shaft holes clockwise or counterclockwise, and
- at least a portion of the supporting shaft is threaded and at least the threaded portion of the supporting shaft is in cylindrical shape, and the inner wall of the first supporting shaft hole is threaded and in cylindrical shape, and the threaded portion of the supporting shaft and threaded inner wall of the first supporting shaft hole are screwed with each other clockwise or
- counterclockwise either by rotating the lever centering around the supporting shaft or by applying screwdriver to rotate the supporting shaft clockwise or counterclockwise to adjust the distance between the first and second cutting edges.
18. The nail clipper of claim 17, wherein the first blade body further comprises a third end opposite to the first end, and the second blade body further comprises a fourth end opposite to the second end, and the third end fixes with the fourth end.
19. The nail clipper of claim 17, wherein the first blade body further comprises a third end opposite to the first end, and the third end fixes with the second blade body.
20. The nail clipper of claim 17, wherein the thickness of at least a portion of the first blade body is increased for increasing the threading area of the inner wall of the first supporting shaft hole.
Type: Application
Filed: Apr 9, 2009
Publication Date: Oct 14, 2010
Inventors: Whei Chyou Wu (Taipei), Mei Hui Yang (Taipei)
Application Number: 12/384,711