Tool handle with interchangeable blades and alternate orientation

• US 4,787,276 A
• Filed: 05/11/1987
• Issued: 11/29/1988
• Est. Priority Date: 05/11/1987
• Status: Expired due to Fees

• Current Assignee: Harry F. Condon
• Original Assignee: Harry F. Condon
• Inventors: Condon, Harry F.
• Primary Examiner(s): MEISLIN, DEBRA S
• Application Number:
  US07/048,372
• Time in Patent Office: 568 Days
• Field of Search: 81/177.1, 81/177.8, 81/177.2, 81/177.4, 81/177.5, 81/177.85, 81/489, 81/490, 81/436-440, 279/14, 279/93, 279/102
• US Class Current: 81/177.1
• CPC Class Codes: B25G 1/066 the grip itself being angularly adjustable
• CPC Class Codes: B25G 3/18 comprising catches or pawls

Abstract

A hand tool for transmitting torque having a handle wherein a tool implement blade may be alternately mounted in three positions on the handle. A slot defined at one end of the handle permits the implement having a shaped head fixed thereon to be mounted such that the implement axis is parallel or transversely related to the handle axis, and a recess formed in the handle central region receives the implement head to permit the tool to be centrally located on the handle and transverse thereto to permit "spinning" of the implement. A retainer rotatably mounted upon the handle prevents inadvertent release of the implement from the slot and a spring biased plunger prevents inadvertent release of the implement from the central recess.

Claims

1. A hand tool having a tool implement alternately positionable upon a handle comprising, in combination, an elongated handle having an outer surface, a longitudinal axis, a front end, a rear end and a central region bisected by a central plane perpendicular to said axis, an elongated axially extending radial slot defined in said handle laterally intersecting said handle outer surface and said handle front end and said slot having a configuration including opposed flat surfaces radially spaced from said handle axial axis, an elongated implement having an axis, an outer end and an inner end, torque drive means defined on said implement outer end, a head integrally fixed upon said implement inner end, a portion of said head having a configuration complementary to a portion of said slot in a first position and in a second position, said slot flat surfaces comprising spaced opposed flat parallel sides defined upon opposite sides of said handle axis and radially spaced relative thereto, said head including a pair of parallel sides spaced apart a distance substantially equal to the spacing of said opposed flat parallel sides thereby permitting said head to be closely received within said slot in said first position with said implement axis substantially coincident with said handle axis and alternately in said second position wherein said implement axis is transverse to said handle axis, and a radial recess defined in said handle central region of a configuration to closely receive said implement head in a third position, said recess including a pair of parallel sides spaced apart a distance substantially equal to the spacing of said opposed flat parallel sides whereby said implement axis will be radially disposed to said handle axis and located within said central plane.

2. In a hand tool as in claim 1, an axial bore defined in said handle concentric to said axis thereof intersecting said slot and said recess, an opening defined in said handle transverse to said handle axis intersecting said slot and of a configuration corresponding to said bore, an elongated projection defined on said head extending in a direction transverse to said implement axis, said projection being closely received within said opening at said head first position and closely received within said bore at said head second and third positions to prevent movement of said implement in the direction of its axis.

3. A hand tool having a tool implement alternately positionable upon a handle comprising, in combination, an elongated handle having an outer surface, an axis, a front end and a rear end, an elongated axially extending radial slot defined in said handle laterally intersecting said handle outer surface and said handle front end, said slot including spaced, opposed flat parallel sides defined upon opposite sides of said handle axis and radially spaced relative thereto, an elongated implement having an axis, an outer end and an inner end, torque drive means defined on said implement outer end, a head integrally fixed on said implement inner end, a portion of said head having a configuration complementary to a portion of said slot in a first position and in a second position, said head including a pair of spaced parallel sides spaced apart a distance substantially equal to the spacing of said slot'"'"'s sides whereby said head may be firmly received within said slot in said first position wherein said implement axis is substantially parallel to said handle axis and extends from said handle front end and said second position wherein said implement axis is transversely disposed to said handle axis, an elongated projection defined on said head extending in a direction transverse to said implement axis, a first recess defined in said handle and intersecting said slot having a length transversely disposed to said handle axis, a second recess defined in said handle and intersecting said slot having a length substantially coaxial with said handle axis, said head projection being closely received within said first recess when said head is in said first position and closely received within said second recess when said head is in said second position, reception of said projection within said first or second recess preventing withdrawal of said head from said slot in a direction parallel to said implement axis, an implement retainer mounted on said handle adjacent said front end selectively positionable over said slot and said implement head when said head is in said first position preventing removal of said head from said slot in a radial direction parallel to the length of said projection.

4. In a hand tool as in claim 3, said retainer comprising an annular ring rotatably mounted upon said handle front end having a circumferential opening of a circumferential dimension slightly larger than that of said slot whereby alignment of said opening with said slot permits said head to be radially removed from said slot.

5. In a hand tool as in claim 4, an annular groove defined in said handle adjacent said front end, said ring being rotatably mounted within said groove.

6. In a hand tool as in claim 5, first and second detent means, respectively, defined on said handle and said ring engaging upon alignment of said ring opening with said slot.

7. In a hand tool as in claim 5, finger engaging means defined upon said ring to facilitate manual rotation thereof.