Abstract
An inventive stud removal and installation tool and method of use is disclosed. The inventive tool incorporates a body configured to hold a cage, cam sleeve and jaws. The cam sleeve is capable of being oriented to accomplish either stud removal or installation. The assembly of the tool is modular such that broken elements can be replaced without the need to replace the entirety of the tool.
Claims
1. A tool for installing or removing a threaded member comprising: a hollow, cylindrical tool body having a first end and a second end and interior cogs; and a hollow, cylindrical cam sleeve having a first end and a second end and exterior cogs designed to mesh with the cogs of the tool body when the cam sleeve is inserted into the tool body; wherein the cam sleeve is reversible such that it may be inserted into the tool body in an orientation for installation of the threaded member or removal of the threaded member.
2. The tool of claim 1 further comprising a cage assembly.
3. The tool of claim 1 further comprising jaws.
4. The tool of claim 2 further comprising one or more retaining rings attached to the cage assembly.
5. A method of installing a threaded member comprising: applying rotational force to a hollow, cylindrical tool body having a first end and a second end and interior cogs; and the tool body having inserted therein a hollow, cylindrical cam sleeve having exterior cogs meshed with the cogs of the tool body; wherein the cam sleeve is reversible and inserted into the tool body such that it is oriented for installation.
6. The method of claim 5 further comprising a cage assembly inserted into the tool body.
7. The method of claim 6 wherein the cage assembly further comprises one or more retaining rings attached to the cage assembly.
8. A method of removing a threaded member comprising: applying rotational force to a hollow, cylindrical tool body having a first end and a second end and interior cogs; and the tool body having inserted therein a hollow, cylindrical cam sleeve having exterior cogs meshed with the cogs of the tool body; wherein the cam sleeve is reversible and inserted into the tool body such that it is oriented for removal.
9. The method of claim 8 further comprising a cage assembly inserted into the tool body.
10. The method of claim 9 wherein the cage assembly further comprises on or more retaining rings attached to the cage assembly.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) Embodiments of the invention will now be described, by way of example, with reference to the accompanying drawings, wherein:
(2) FIG. 1 shows the components of the preferred embodiment of the inventive tool oriented for stud installation.
(3) FIG. 2 shows an embodiment of the fully assembled inventive tool.
(4) FIG. 3 shows the cage incorporated in the preferred embodiment.
(5) FIG. 4 depicts an embodiment of a first end of the fully assembled inventive tool.
(6) FIG. 5 shows an embodiment of the cam sleeve incorporated in the inventive tool.
(7) FIG. 6 shows another embodiment of the cam sleeve incorporated in the inventive tool.
(8) FIG. 7 depicts an embodiment of the jaws incorporated in the inventive tool.
(9) FIG. 8 depicts another embodiment of the jaws.
(10) FIG. 9 depicts an embodiment of the cage assembly incorporated in the inventive tool.
DETAILED DESCRIPTION
(11) FIG. 1 of the drawings shows a preferred embodiment of the stud removal and installation tool, having a cylindrical body (100) having a first end (101) and a second end (102) with a hollow cylindrical housing (103) having a front face and side walls. The second end of the hollow interior of cylindrical housing (104) is lined with grooved teeth sized to allow cam sleeve (105) to sit flush inside cylindrical housing (101). The cam sleeve (105) is reversible such that it may be inserted into the body (100) in an orientation for installation of the threaded member or removal of the threaded member. The first end opposite end of the cylindrical body (100) is additionally hollow with a drive recess (106) formed to allow for coupling to an impact tool or driver device with which to apply rotational forces to the stud removal and installation tool. Also shown in FIG. 1 is the cam sleeve (105). The exterior surface of cam sleeve (107) is lined with teeth (108) sized to insert flush into cylindrical housing (101). The interior surface of cam sleeve (109) is formed so that it causes the axial radius of cavity (104) to vary from a minimum where the cam insert is largest (110) at its peak to a maximum where the cam sleeve tapers to its smallest thickness (111). Correspondingly, the thickness of cam sleeve varies from a minimum where cam insert is at its thickest (113) to its maximum where cam insert is at its thinnest (114). Additionally, FIG. 1 depicts the cage assembly (115) which is a cylindrical insert formed so as to sit flush inside the cam sleeve (105), with an outer surface (117) designed to sit flush inside cylindrical housing (103). Furthermore, cage assembly (115) is includes two rectangular cut out windows (118) situated at 180 degrees from one other on the cage assembly (115). Machined into interior surface and extending across the midpoint of the windows (118) is a retaining ring (119) which acts as a guide to jaws (120). The jaws (120) are machined to conform both the exterior of cage assembly (115) and posses teeth which are formed of hardened steel to bite into a stud. Also, shown in figure one is retaining ring (121) which is designed to clip into the end of cylindrical housing (103) to hold cage assembly (115) and cylindrical cam sleeve inside the cylindrical body (103).
(12) FIG. 2 depicts the fully assembled stud removal and installation tool with tool body (200) comprising a cylindrical housing (201) having a first end (202) and a second end (203). Cylindrical housing (201) has and interior surface that is machined to form teeth (204) at the second end (203) which interlock and sit flush with the teeth on the exterior surface of a cylindrical cam housing. Also depicted in FIG. 2 is retaining ring (205) which holds cage assembly (not shown) and cylindrical cam housing in place inside cylindrical housing (201).
(13) FIG. 3 is a front view of the open end of the fully assembled tool, showing the interior (300) of cylindrical housing (301), with the machined teeth on interior of cylindrical housing (302) interlocked with teeth (303) on the exterior surface of cylindrical cam housing (304), and being held in place by retaining ring (305).
(14) FIG. 4 depicts a rectangular shaped drive recess (400) for coupling the stud remover with a drive, such as an impact tool.
(15) FIG. 5 depicts the cylindrical cam sleeve (500). The cylindrical cam sleeve (500) is reversible. The exterior surface of cylindrical cam sleeve (501) is machined to form teeth (502) which are machined to insert flush into a cylindrical housing. The interior surface of cylindrical cam sleeve is formed to that it causes the radius of cavity (503) to vary from a minimum (504) where cylindrical cam sleeve is at its thickest, adjacent to a to maximum (505) where of cylindrical cam sleeve is at its thinnest. The two minimum (504) and two maximum (505) positions on the interior surface of cylindrical cam insert are positioned across from each other at 180 degrees so that the two minimum (504) positions are at 180 degrees and the two maximum (505) positions are at 360 degrees. Cylindrical cam insert sleeve is designed to so that it may be inserted into cylindrical housing in one of two ways, so that minimum (504) positions are either clockwise or counter clock wise to maximum (505) positions, allowing for either installation or removal of studs.
(16) FIG. 6 depicts cylindrical cam sleeve (600) from a side angle. The cylindrical cam sleeve (600) is reversible. The cam sleeve has an exterior surface (601) with teeth (602) designed to fit inside and interlock with teeth of the tool body. The cam sleeve has an interior surface (603) such that the width of the cylindrical cam sleeve varies from a maximum (604) to a minimum (605).
(17) FIG. 7 depicts top side of jaws (700) with teeth (701) which are formed of hardened steel to bite into a stud for installation or removal.
(18) FIG. 8 is a side view of jaws (800) and teeth (801). Jaws are machined with groove (802) cut into interior of the jaws which fits around retaining rings on exterior of a cage assembly.
(19) FIG. 9 is a view of the insertable side of the cage assembly (900) which inserts into a cylindrical cam shaft. The cage assembly (900) is comprised of a cylindrical body (901) with an outer (902) and inner surface (903) designed to sit flush within the interior of cylindrical cam shaft. Attached to the top surface of cylindrical body (901) and protruding beyond the outer surface (902) is lip (904). Lip (904) sits flush with the side edge against the interior surface of cylindrical housing and the interior edge flush against the exterior surface of cylindrical cam housing. Cut into the cylindrical body (901) are rectangular cutouts (905) which are bisected by retaining rings (906). Retaining rings are machined so that they are flush with inner surface (903) but do not extent to outer surface (902). This allows jaws to sit within cutouts (905)) and move freely along retaining rings (906).
