Claims
- 1. A ratchet tool comprising: an elongated housing including first and second arms each including an opening defined by a cylindrical surface having a longitudinal axis, the longitudinal axis of said cylindrical surface of said first arm being in substantial alignment with said longitudinal axis of said cylindrical surface of said second arm, said first arm having a radially inwardly extending shoulder, a drive body disposed within said openings in said arms, a bushing disposed in said opening of said first arm, said bushing including a sleeve having an inner surface and an outer surface, and a flange extending radially outwardly from said outer surface, said flange having a periphery, said inner surface of said sleeve engaging said drive body, said outer surface of said sleeve engaging said cylindrical surface of said opening in said first arm, said inner surface of said sleeve having a longitudinal axis in substantial alignment with the longitudinal axis of said surface of said opening in said first arm, said flange having a plurality of serrations extending circumferentially around said periphery and engaging said cylindrical surface of said opening of said first arm to provide a grip between said bushing and said first arm, each of said serrations having a pair of surfaces intersecting to form a longitudinally extending edge, the locus of said edges defining a surface having a longitudinal axis in substantial alignment with said longitudinal axis of said inner surface of said sleeve to maintain alignment between the longitudinal axis of said surface of said opening in said first arm and the longitudinal axis of said surface of said opening in said second arm.
- 2. The ratchet tool of claim 1, wherein each of said edges is substantially parallel to said longitudinal axis of said inner surface of said sleeve, the locus of said edges defining a cylindrical surface.
- 3. The ratchet tool of claim 1, wherein each of said edges is inclined at an angle with respect to said longitudinal axis of said inner surface of said sleeve, the locus of said edges defining a conical surface.
- 4. The ratchet tool of claim 3, wherein said angle is about 11.degree..
- 5. The ratchet tool of claim 3, wherein said opening in said first arm has a mouth inclined at an angle with respect to said longitudinal axis of said cylindrical surface of said opening in said first arm to define a conical surface, said angle being substantially equal to said angle of said serrations.
- 6. The ratchet tool of claim 1, wherein said cylindrical surface of said shoulder has a plurality of inwardly radially extending ribs engaging said outer surface of said sleeve, said ribs being deformable when said bushing is press fit into said opening.
Parent Case Info
This is a divisional of application Ser. No. 07/526,498, filed May 21, 1990, now U.S. Pat. No. 5,142,952.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
5022289 |
Butzen |
Jun 1991 |
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Divisions (1)
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Number |
Date |
Country |
Parent |
526498 |
May 1990 |
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