Pliers

Abstract

A pliers includes two main bodies pivotally coupled to one another. A first main body defines a first pivot hole and a second main body defines a second pivot hole respectively. The first pivot hole has a first inner peripheral section with a flaring conical shape. Furthermore, the first pivot hole has a second inner peripheral section with a flaring conical shape. The first inner peripheral section has a first cone angle and the second inner peripheral section has a second cone angle respectively. The second cone angle is smaller than the first cone angle. The first and the second main bodies are pivotally interconnected with a fastener. The fastener has a first outer peripheral section abutting and conforming to the first inner peripheral section and a second outer peripheral section abutting and conforming to the second inner peripheral section respectively.

Claims

1. A pliers comprising: a first main body having a first side and a second side opposite to the first side and defining a first pivot hole extending through the first and the second sides, wherein the first pivot hole has a first inner peripheral section with a flaring conical shape which has an increased radius from an end adjacent to the first side, wherein the first pivot hole has a second inner peripheral section with a flaring conical shape which has an increased radius from an end adjacent to the first inner peripheral section to an end adjacent to the second side, wherein the first inner peripheral section has a first cone angle and the second inner peripheral section has a second cone angle respectively, and wherein the second cone angle is smaller than the first cone angle; a second main body defining a second pivot hole; and a fastener, wherein the first and the second main bodies are pivotally interconnected with the fastener, wherein the fastener is engaged in the first and the second pivot holes, wherein the fastener has a first outer peripheral section abutting and conforming to the first inner peripheral section, and wherein the fastener has a second outer peripheral section abutting and conforming to the second inner peripheral section.

2. The pliers as claimed in claim 1, wherein the first cone angle is greater than 80 degrees and less than 100 degrees, and wherein the second cone angle is greater than 10 degrees and less than 40 degrees.

3. The pliers as claimed in claim 1, wherein the first cone angle is 90 degrees, and wherein the second cone angle is 22 degrees.

4. The pliers as claimed in claim 1, wherein the second pivot hole has a third inner peripheral section with a flaring conical shape which has an increased radius as extending away from the first main body, and wherein the fastener has a third outer peripheral section abutting and conforming to the third inner peripheral section.

5. The pliers as claimed in claim 4, wherein the third inner peripheral section has a third cone angle which equals to 90 degrees.

6. The pliers as claimed in claim 1, wherein the first and the second main bodies have corresponding ends forming working ends and the working ends of the first and the second main bodies are configured to cooperatively hold an object to be acted by the pliers, and wherein the working ends of the first and the second main bodies have corresponding cutting blade portions adapted to be used to strip wires.

7. The pliers as claimed in claim 1, wherein the fastener is riveted in the first and the second pivot holes.

8. The pliers as claimed in claim 1, wherein the second pivot hole extends through the second main body.

9. The pliers as claimed in claim 4, wherein the fastener is riveted in the first and the second pivot holes.

10. The pliers as claimed in claim 4, wherein the first and the second main bodies have corresponding ends forming working ends and the working ends of the first and the second main bodies are configured to cooperatively hold an object to be acted by the pliers, and wherein the working ends of the first and the second main bodies having corresponding cutting blade portions adapted to be used to strip wires.

11. The pliers as claimed in claim 1, wherein the fastener is partially engaged in a section of the first pivot hole which has a uniform radius and partially engaged in a section of the second pivot hole which has a uniform radius.

12. The pliers as claimed in claim 4, wherein the fastener is partially engaged in a section of the first pivot hole which has a uniform radius and partially engaged in a section of the second pivot hole which has a uniform radius.

13. The pliers as claimed in claim 12, wherein the fastener includes the second and the third outer peripheral sections at two distal ends respectively.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0014] FIG. 1 is a perspective view of a pliers in accordance with the present invention.

[0015] FIG. 2 is an exploded perspective view of the pliers of FIG. 1.

[0016] FIG. 3 is a cross-sectional view of a working end of the pliers of FIG. 1.

DETAILED DESCRIPTION OF THE INVENTION

[0017] FIGS. 1 through 3 show a pliers 10 in accordance with the present invention. The pliers 10 includes two main bodies 20 and 30 pivotally coupled to one another with a fastener 40. The main bodies 20 and 30 are pivotal about an axis L which extends along the longitudinal length of the fastener 40. Furthermore, the axis L extends along the center of the fastener 40.

[0018] The main body 20 has a side 22 and a side 23 opposite to the side 22. The main body 20 defines a pivot hole 21 extending through the sides 22 and 23. The pivot hole 21 has an inner peripheral section 211 with a flaring conical shape which has an increased radius from an end adjacent to the side 22. Furthermore, the pivot hole 21 has an inner peripheral section 212 with a flaring conical shape which has an increased radius from an end adjacent to the inner peripheral section 211 to an end adjacent to the side 23.

[0019] The inner peripheral section 211 has a cone angle A1 and the inner peripheral section 212 has a cone angle A2 respectively. The cone angle A2 is smaller than the cone angle A1. As shown in FIG. 3, the inner peripheral section 211 has two inclined divergent edges that are angled with one another with the cone angle A1, and the inner peripheral section 212 has two inclined divergent edges that are angled with one another with the cone angle A2. The cone angle A1 is greater than 80 degrees and less than 100 degrees. The cone angle A2 is greater than 10 degrees and less than 40 degrees. Preferably, the cone angle A1 is 90 degrees. Preferably, the cone angle A2 is 22 degrees.

[0020] The main body 30 defining a pivot hole 31. The pivot hole 31 extends through the main body 30. The pivot hole 31 has an inner peripheral section 32 with a flaring conical shape which has an increased radius as extending away from the main body 20. The fastener 40 has an outer peripheral section 43 abutting and conforming to the inner peripheral section 32. The inner peripheral section 32 has a cone angle A3 which equals to 90 degrees.

[0021] The main bodies 20 and 30 are pivotally interconnected with the fastener 40. The fastener 40 is engaged in the pivot holes 21 and 31. The fastener 40 has an outer peripheral section 41 abutting and conforming to the inner peripheral section 211. The inner peripheral section 211 and the outer peripheral section 41 are in surface-to-surface contact. Furthermore, the fastener 40 has an outer peripheral section 42 abutting and conforming to the inner peripheral section 211. The inner peripheral section 212 and the outer peripheral section 42 are in surface-to-surface contact. Moreover, the fastener 40 is partially engaged in a section of the pivot hole 21 which has a uniform radius and partially engaged in a section of the pivot hole 31 which has a uniform radius. The fastener 40 is riveted in the pivot holes 21 and 31. The fastener 40 includes the outer peripheral sections 42 and 43 at two distal ends respectively.

[0022] The main bodies 20 and 30 have corresponding ends forming working ends and the working ends of the main bodies 20 and 30 are configured to cooperatively hold an object to be acted by the pliers 10. The working ends of the main bodies 20 and 30 have corresponding cutting blade portions 24 and 33 adapted to be used to strip wires.

[0023] In view of the foregoing, in order to make the pliers 10 have a long use life, the shapes of the pivot hole 21 is designed with flaring inner peripheral sections 211 and 212 and the fastener 40 includes conforming flaring outer peripheral sections 41 and 42 abutting the inner peripheral sections 211 and 212 respectively.

[0024] Furthermore, the pivot hole 31 is designed with flaring inner peripheral section 32 and the fastener includes conforming flaring outer peripheral section 43 abutting the inner peripheral section 32.

[0025] Moreover, the fastener 40 is riveted in the pivot holes 21 and 31.

[0026] The foregoing is merely illustrative of the principles of this invention and various modifications can be made by those skilled in the art without departing from the scope and spirit of the invention.