Nosepiece and magazine for power screwdriver

Patent metadata

Field	Value
Publication number	US-11673241-B2
Application number	US-201916528816-A
Country	US
Kind code	B2
Filing date	Aug 1, 2019
Priority date	Mar 14, 2013
Publication date	Jun 13, 2023
Grant date	Jun 13, 2023

Abstract

A magazine is configured to be removably coupled to a power tool housing of a power tool. The magazine has a housing configured to be rotatably attachable to the power tool housing. An advancing mechanism is received in the magazine housing, and is configured to advance a strip of collated fasteners into position to be driven by the power tool. An indexing ring has a plurality of recesses and is configured to be non-rotatably attached to the power tool housing. A detent is biased to removably engage one of the plurality of recesses, and is configured to be non-rotatably attached to the magazine housing. The detent removably engages the recesses to allow for indexed tool-free rotation of the magazine housing relative to the power tool housing.

First claim

What is claimed is:

1. A magazine configured to be coupled to a power tool having a tool housing and a tool holder for holding a screwdriving bit, the magazine comprising:
a magazine housing having a front end portion and a rear end portion configured to be attachable to the power tool housing;
an advancing mechanism coupled to the front end portion and configured to advance a strip of collated fasteners into position to be driven by the screwdriving bit; and
a rear bit guide positioned adjacent the rear end portion of the magazine housing and a front bit guide positioned adjacent the front end portion of the magazine housing,
wherein each of the rear bit guide and the front bit guide is received in the magazine housing between the front end portion and the rear end portion rearward of the advancing mechanism, and each of the rear bit guide and the front bit guide includes a hollow inner surface tapering inward toward the front end portion of the magazine housing to receive the screwdriving bit for proper alignment of the screwdriving bit relative to the collated fasteners.

2. The magazine of claim 1 , wherein the rear bit guide is coupled to an indexing mechanism configured to enable rotation of the magazine housing relative to the tool housing while the magazine housing is coupled to tool housing.

3. The magazine of claim 2 , wherein the rear bit guide has a cylindrical outer surface coupled to the indexing mechanism.

4. The magazine of claim 1 , wherein the front bit guide is positioned adjacent the front end portion of the magazine housing.

5. The magazine of claim 4 , wherein the front bit guide is coupled to a bearing structure that is at least partially received in a shoe moveably coupled to the front end portion.

6. The magazine of claim 5 , wherein the front bit guide includes a cylindrical exterior surface coupled to a return spring that biases the shoe away from the front end portion.

7. A magazine and power tool assembly comprising:
a power tool including a tool housing that contains a motor and a tool holder coupled to the power tool housing and configured to hold a screwdriving bit, the tool holder being driven in rotation relative to the power tool housing by the motor; and
a magazine including a magazine housing with a front end portion and a rear end portion configured to be attachable to the power tool housing, an advancing mechanism coupled to the front end portion and configured to advance a strip of collated fasteners into position to be driven by the screwdriving bit, and a rear bit guide and a front bit guide received in the magazine housing rearward of the advancing mechanism, the each of the bit guides including a hollow inner surface tapering inward toward the front end portion of the magazine housing to receive the screwdriving bit for proper alignment of the screwdriving bit relative to the collated fasteners, and the at least one bit guide attachable non-rotatably to the power tool housing.

8. The magazine of claim 7 , wherein the at least one bit guide comprises a rear bit guide positioned adjacent the rear end portion of the magazine housing.

9. The magazine of claim 8 , wherein the rear bit guide is coupled to an indexing mechanism configured to enable rotation of the magazine housing relative to the tool housing while the magazine housing is coupled to tool housing.

10. The magazine of claim 9 , wherein the rear bit guide has a cylindrical outer surface coupled to the indexing mechanism.

11. The magazine of claim 7 , wherein the at least one bit guide comprises a front bit guide positioned adjacent the front end portion of the magazine housing.

12. The magazine of claim 11 , wherein the front bit guide is coupled to a bearing structure that is at least partially received in a shoe moveably coupled to the front end portion.

13. The magazine of claim 12 , wherein the front bit guide includes a cylindrical exterior surface coupled to a return spring that biases the shoe away from the front end portion.

14. The magazine of claim 7 , wherein the at least one bit guide comprises a rear bit guide positioned adjacent the rear end portion of the magazine housing and a front bit guide positioned adjacent the front end portion of the magazine housing.

15. A magazine configured to be coupled to a power tool housing having a tool holder for holding a screwdriving bit, the magazine comprising:
magazine housing having a front end portion and a rear end portion configured to be attachable to the power tool housing;
an advancing mechanism coupled to the front end portion and configured to advance a strip of collated fasteners into position to be driven by the screwdriving bit;
a shoe coupled to the front end portion of the magazine housing and configured to reciprocate relative to the magazine housing to cause the advancing mechanism to advance the strip of collated fasteners; and
a bit guide received in the magazine housing adjacent the front end portion the bit guide including a hollow inner conical surface disposed rearward of the advancing mechanism, the conical surface extending tapering inward toward the front end portion of the magazine housing, the bit guide configured to receive the screwdriving bit for proper alignment of the screwdriving bit relative to the collated fasteners.

16. The magazine of claim 15 , wherein the bit guide is coupled to a bearing structure that is at least partially received in the shoe.

17. The magazine of claim 16 , wherein the bit guide includes a cylindrical exterior surface coupled to a return spring that biases the shoe away from the front end portion.

18. The magazine of claim 15 , further comprising a second bit guide received in the magazine housing adjacent the rear end portion, the second bit guide including a second inner conical surface tapering inward toward the front end portion of the magazine housing to receive the screwdriving bit for proper alignment of the screwdriving bit relative to the collated fasteners.

19. The magazine of claim 1 , wherein each of the rear bit guide and the front bit guide includes a hollow inner conical surface tapering inward toward the front end portion of the magazine housing to receive the screwdriving bit for proper alignment of the screwdriving bit relative to the collated fasteners.

Assignees

• Black & Decker Inc

Inventors

• Hays James Dunlap
• Zellinger John P
• Marshall Jr Rex A
• Charles Wesson
• Kelleher Joseph P
• Horky John K

Classifications

• B25B23/0064

  Means for adjusting screwing depth · CPC title

• B25B23/045 Primary

  using disposable strips or discs carrying the screws or nuts · CPC title

• B25B21/00

  Portable power-driven screw or nut setting or loosening tools; (details or components, e.g. casings, bodies, of portable power-driven tools not particularly related to the operation performed B25F5/00; {for mounting or dismounting wheels B60B29/006}); Attachments for drilling apparatus serving the same purpose (machines B23P19/06) · CPC title