Pipe wrench

Abstract

A pipe wrench includes a first body and a second body. The first body includes a handle portion and a first clamping portion. The second body is movably coupled to the first body and has a body portion. The body portion defines a thorough hole with which the first body is insertably engaged. The body portion includes a second clamping portion. The first and second clamping portions face oppositely and cooperate with one another. The body portion is reinforced with at least one reinforcement ridge. The at least one reinforcement ridge extends from an outer periphery of the body portion. The second body is movable to various fixed positions on the first body.

Claims

1. A pipe wrench comprising: a first body including a handle portion at a first end thereof and a first clamping portion at a second end thereof; and a second body movably coupled to the first body and having a body portion, with the body portion defining a through hole with which the first body is insertably engaged, with the body portion including a second clamping portion, with the first and second clamping portions facing oppositely and cooperating with one another, wherein the body portion is reinforced with at least one reinforcement ridge, with the at least one reinforcement ridge extending from an outer periphery of the body portion, and wherein the second body is movable to various fixed positions on the first body, thereby changing positions of the second clamping portion relative to the first clamping portion, wherein the outer periphery of the body portion includes a first surface extending laterally and the at least one reinforcement ridge includes at least one first reinforcement ridge extending from the first surface, wherein the through hole includes a wall extending laterally, wherein the first surface is spaced from the wall at a first distance, wherein the at least one first reinforcement ridge includes an outermost side spaced from the wall at a second distance, and wherein the second distance is greater than the first distance.

2. The pipe wrench as claimed in claim 1, wherein the outer periphery of the body portion includes a second surface and a third surface, wherein the second surface extends transversely between the first and third surfaces, wherein the first and third surfaces extending laterally, and wherein the through hole is disposed between the first and third surfaces.

3. The pipe wrench as claimed in claim 2, wherein the outer periphery of the body portion includes a fourth surface opposite the second surface, and the second clamping portion extends from the fourth surface.

4. The pipe wrench as claimed in claim 3, wherein the at least one reinforcement ridge includes at least one second reinforcement ridge extending from the third surface.

5. The pipe wrench as claimed in claim 4, wherein the at least one first and second reinforcement ridges are symmetrical.

6. The pipe wrench as claimed in claim 5, wherein the at least one first and second reinforcement ridges are mirror images of one another.

7. The pipe wrench as claimed in claim 4, wherein the at least one reinforcement ridge includes at least one third reinforcement ridge extending from a corner between the first and second surfaces, and wherein the at least one third reinforcement ridge partially extends on the first surface and integrates with the at least one first reinforcement ridge and partially extends on the second surface.

8. The pipe wrench as claimed in claim 7, wherein the at least one reinforcement ridge includes at least one fourth reinforcement ridge extending from a corner between the second and third surfaces, and wherein the at least one fourth reinforcement ridge partially extends on the third surface and integrates with the at least second reinforcement ridge and partially extends on the second surface.

9. The pipe wrench as claimed in claim 8, wherein the at least one first and second reinforcement ridges are symmetrical.

10. The pipe wrench as claimed in claim 9, wherein the at least one first and second reinforcement ridges are mirror images of one another.

11. The pipe wrench as claimed in claim 8, wherein the first body includes a row of a plurality of teeth disposed between the handle portion and the first clamping portion, and wherein the second body defines a space and includes a worm restrained in the space and engaging with the plurality of teeth.

12. The pipe wrench as claimed in claim 2, wherein the at least one reinforcement ridge includes at least one second reinforcement ridge extending from a corner between the first and second surfaces, and wherein the at least one second reinforcement ridge partially extends on the first surface and integrates with the at least one first reinforcement ridge and partially extends on the second surface.

13. The pipe wrench as claimed in claim 12, wherein the outer periphery of the body portion includes a fourth surface opposite the second surface, and the second clamping portion extends from the fourth surface.

14. The pipe wrench as claimed in claim 7, wherein the first body includes a row of a plurality of teeth disposed between the handle portion and the first clamping portion, and wherein the second body defines a space and includes a worm restrained in the space and engaging with the plurality of teeth.

15. The pipe wrench as claimed in claim 1, wherein the first body includes a row of a plurality of teeth disposed between the handle portion and the first clamping portion, and wherein the second body defines a space and includes a worm restrained in the space and engaging with the plurality of teeth.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a perspective view of a pipe wrench in accordance with the present invention.

(2) FIG. 2 is an exploded perspective view of the pipe wrench of the present invention.

(3) FIG. 3 is a partial, enlarged view of the pipe wrench of the present invention.

(4) FIG. 4 is a cross-sectional view taken along 4-4 of FIG. 3.

DETAILED DESCRIPTION OF THE INVENTION

(5) FIGS. 1 through 4 show a pipe wrench in accordance with the present invention. The pipe wrench includes a first body 10 and a second body 20.

(6) The first body 10 includes a handle portion 11 at a first end thereof and a first clamping portion 12 at a second end thereof.

(7) The second body 20 is movably coupled to the first body 10. The second body 20 has a body portion 21. The body portion 21 defines a through hole 22 with which the first body 10 is insertably engaged. The through hole 22 has a first opening at a first end and a second opening at a second end. The body portion 21 includes a second clamping portion 24 cooperating with the first clamping portion 12. When the pipe wrench clamps an object, the object is gripped by and is disposed between the first and second clamping portions 12 and 24. The first and second clamping portions 12 and 24 face oppositely. The second body 20 can move axially on the first body 10. Thus, the second clamping portion 24 is axially displaced with respect to the first clamping portion 12 in response to the movement of the second body 20 with respect to the first body 10.

(8) The second body 20 is movable to various fixed positions on the first body 10, thereby changing positions of the second clamping portion 24 relative to the first clamping portion 12. The first body 10 includes a row of a plurality of teeth 13 disposed between the handle portion 11 and the first clamping portion 12. The second body 20 defines a space 213 and includes a worm 30 restrained in the space 213 and engaging with the plurality of teeth 13. The worm 30 has a helical tooth in its peripheral surface, and the row of the plurality of teeth 13 can successively mate with the helical tooth. By rotating the worm 30, the second body 20 can move axially on the first body 10.

(9) The body portion 21 is reinforced with at least one reinforcement ridge. The at least one reinforcement ridge extends from an outer periphery of the body portion 21. The outer periphery of the body portion 21 includes a first surface 211 extending laterally and the at least one reinforcement ridge includes at least one first reinforcement ridge 23 extending from the first surface 211. The through hole 22 includes a wall 221 extending laterally. The first surface 211 is spaced from the wall 221 at a first distance L1. The at least one first reinforcement ridge includes an outermost side 231 spaced from the wall 221 at a second distance L2. The second distance L2 is greater than the first distance L1.

(10) Furthermore, the outer periphery of the body portion 21 includes a second surface 212 and a third surface 214. The second surface 212 extends transversely between the first and third surfaces 211 and 214. The first and third surfaces 211 and 214 extend laterally. The through hole 22 is disposed between the first and third surfaces 211 and 214. The outer periphery of the body portion 21 includes a fourth surface opposite the second surface 212, and the second clamping portion 24 extends from the fourth surface.

(11) Furthermore, the at least one reinforcement ridge includes at least one second reinforcement ridge 23 extending from the third surface 214. The at least one first and second reinforcement ridges 23 are symmetrical. The at least one first and second reinforcement ridges 23 are mirror images of one another. The at least one reinforcement ridge includes at least one third reinforcement ridge 25 extending from a corner between the first and second surfaces 211 and 212. The at least one third reinforcement ridge 25 partially extends on the first surface 211 and integrates with the at least one first reinforcement ridge 23 and partially extends on the second surface 212. The at least one reinforcement ridge includes at least one fourth reinforcement ridge 25 extending from a corner between the second and third surfaces 212 and 214. The at least one fourth reinforcement ridge 25 partially extends on the third surface 214 and integrates with the at least second reinforcement ridge 23 and partially extends on the second surface 212.

(12) In view of the forgoing, the body portion 21 is reinforced. The at least one reinforcement ridge includes the at least one first, second, third, and fourth reinforcement ridges reinforcing the outer periphery of the body portion 21. The reinforcement ridges can reduce stress concentrations, so that the pipe wrench can transmit high torque without damaging components thereof.

(13) 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.