Tool with changeable working tip
OwnerScott H. Hoganinventor
Life of this patent
Estimating the term…
Abstract
A tool with changeable working tips has a tool shaft with an attachment end adapted to receive the attachment end of a working tip in freely removable engagement therewith. A sleeve is moved over the engagement of the shaft and working tip to securely hold the shaft and working tip together in engaged position so that any rotation or other movement of the shaft is transferred to the working tip. The sleeve is removable from around the engagement ends of the shaft and working tip, such as by removal from the tool or retraction into the tool, to allow the working tip to be removed from engagement with the shaft and a different working tip to be engaged with the shaft. The sleeve is replaced over the engagement of the engagement ends to hold the different working tip in place.
Claims24
A tool having a shaft with a working tip receiving end adapted to removably engage a working tip to perform a job, wherein the working tip may be changed so that the tool is capable of performing different jobs depending upon the working tip engaged, and wherein the shaft moves during use of the tool with respect to a tool body which can be held and manipulated by a user, comprising:
- a shaft having a working tip attachment end;
- a tool body coupled to the shaft and by which the shaft can be manipulated and with respect to which the shaft moves during use of the tool;
- and
- a sleeve movable between a position wherein the sleeve surrounds the working tip attachment end of the shaft and is secured to the tool body so that the shaft moves within the sleeve, and a position removed from the working tip attachment end of the shaft;
- whereby, when the sleeve surrounds the working tip attachment end of the shaft it will maintain a working tip in engagement with the shaft and when removed from the working tip attachment end, will allow disengagement of a working tip from the shaft.
In combination,
- a tool having a shaft with a working tip receiving end adapted to removably engage a working tip to perform a job, wherein the working tip may be changed so that the tool is capable of performing different jobs depending upon the working tip engaged, and wherein the shaft moves during use of the tool with respect to a tool body which can be held and manipulated by a user, said tool comprising:
- a shaft having a working tip attachment end;
- a tool body coupled to the shaft and by which the shaft can be manipulated and with respect to which the shaft moves during use of the tool;
- and
- a sleeve movable between a position wherein the sleeve surrounds the working tip attachment end of the shaft and is secured to the tool body so that the shaft moves within the sleeve, and a position removed from the working tip attachment end of the shaft;
- whereby, when the sleeve surrounds the working tip attachment end of the shaft it will maintain a working tip in engagement with the shaft and when removed from the working tip engagement end, will allow disengagement of a working tip from the shaft;
- and
- a working tip having an attachment end adapted to mate with the attachment end of the shaft, said working tip attachment end being engaged with the attachment end of the shaft and being held in engagement with the attachment end of the shaft by the sleeve in position to surround the working tip attachment end of the shaft.
A tool having a shaft with a working tip receiving end adapted to removably engage a working tip to perform a job, and wherein the working tip may be changed so that the tool is capable of performing different jobs depending upon the working tip engaged, comprising:
- a shaft having a working tip attachment end;
- a tool body coupled to the shaft and by which the shaft can be manipulated;
- and
- a sleeve movable between a position wherein the sleeve surrounds the working tip attachment end of the shaft and is snapped into securement to the tool body, and a position removed from the working tip attachment end of the shaft, said sleeve including means for releasing the securement to the tool body;
- whereby, when the sleeve surrounds the working tip attachment end of the shaft it will maintain a working tip in engagement with the shaft and when removed from the working tip attachment end, will allow disengagement of a working tip from the shaft.
A tool having a shaft with a working tip receiving end adapted to removably engage a working tip to perform a job, and wherein the working tip may be changed so that the tool is capable of performing different jobs depending upon the working tip engaged, comprising:
- a shaft having a working tip attachment end;
- a tool body coupled to the shaft and by which the shaft can be manipulated;
- means for retracting the shaft into the tool body to draw the attachment end of the shaft into the body of the tool, and any tip engaged thereby at least partially into the tool;
- and
- a sleeve removably secured to the tool body wherein when the sleeve is secured to the tool body and the shaft is in an extended position, the sleeve surrounds the working tip attachment end of the shaft, said sleeve having means for releasing securement of the sleeve to the tool body operable to release the sleeve from the tool body only when the shaft is in the retracted position;
- whereby, when the sleeve surrounds the working tip attachment end of the shaft it will maintain a working tip in engagement with the shaft and when removed from the tool body and the shaft is in extended position, will allow disengagement of a working tip from the shaft.
A tool having a shaft with a working tip receiving end adapted to removably engage a working tip to perform a job, and wherein the working tip may be changed so that the tool is capable of performing different jobs depending upon the working tip engaged, comprising:
- a shaft having a working tip attachment end;
- a tool body coupled to the shaft and by which the shaft can be manipulated;
- and
- a sleeve slidably mounted in the tool body to move between a position wherein the sleeve surrounds the working tip attachment end of the shaft and is secured to the tool body, and a position wherein a substantial portion of the sleeve is within the tool body and the sleeve is removed from the working tip attachment end of the shaft;
- whereby, when the sleeve surrounds the working tip attachment end of the shaft it will maintain a working tip in engagement with the shaft and when removed from the working tip attachment end, will allow disengagement of a working tip from the shaft.
A tool having a shaft with a working tip receiving end adapted to removably engage a working tip to perform a job, and wherein the working tip may be changed so that the tool is capable of performing different jobs depending upon the working tip engaged, comprising:
- a shaft having a working tip attachment end;
- a tool body coupled to the shaft and by which the shaft can be manipulated;
- and
- a sleeve movable between a position wherein the sleeve surrounds the working tip attachment end of the shaft and is secured to the tool body, and a position wherein the sleeve does not surround the working tip attachment end of the shaft, said sleeve including a shoulder therein;
- whereby, when the sleeve surrounds the working tip attachment end of the shaft it will maintain a working tip with an enlarged working tip attachment end in engagement with the shaft and the sleeve shoulder will capture the enlarged working tip attachment end and substantially prevent axial movement of the engaged working tip with respect to the shaft, and when it does not surround the working tip attachment end, will allow disengagement of a working tip from the shaft.
Dependencies are inferred from the claim text.