Hack saw with integrated retainer for blade pin holder and related method

Patent metadata

Field	Value
Publication number	US-9358625-B2
Application number	US-201313828369-A
Country	US
Kind code	B2
Filing date	Mar 14, 2013
Priority date	Mar 14, 2013
Publication date	Jun 7, 2016
Grant date	Jun 7, 2016

Abstract

A hack saw comprises a proximal end, a proximal handle located at the proximal end, and a distal end spaced from the proximal handle for mounting a hack saw blade therebetween. The handle includes a proximal cavity at a base end thereof, dimensioned to allow a portion of a proximal pin holder therethrough, and a proximal pin holder retaining member within the proximal handle proximally spaced from the proximal cavity, defining a slot therebetween for retention of a pin holder therein. The pin holder retaining member is positioned to form an interference with the proximal pin holder when the pin holder is located in the handle and prevents the proximal pin holder from dislodging or being removed therefrom.

First claim

What is claimed is:

1. A hack saw comprising:
a proximal end;
a distal end; and
a handle located at the proximal end of the hack saw and spaced apart from the distal end of the hack saw for mounting a hack saw blade therebetween, the handle comprising:
a retaining arm located at a base end of the handle, the retaining arm comprising a proximal end, a distal end, and a proximal pin holder cavity defined in the distal end of the retaining arm and configured to allow a distal portion of a proximal pin holder to pass therethrough; and
a proximal pin holder retaining member integrally formed with the retaining arm and proximally spaced apart from the proximal pin holder cavity such that the proximal pin holder retaining member is positioned between the proximal pin holder cavity and the proximal end of the retaining arm, the proximal pin holder retaining member and the proximal pin holder cavity defining a slot therebetween configured to receive a proximal portion of the proximal pin holder therein;
wherein the proximal pin holder retaining member is at least one of resiliently movable and compressible from a first position to a second position proximally displaced from the first position such that at least a portion of the proximal pin holder retaining member is positioned closer to the proximal end of the retaining arm when the proximal pin holder retaining member is in the second position, and wherein the proximal pin holder retaining member prevents removal of the proximal portion of the proximal pin holder from the slot when the proximal pin holder retaining member is in the first position.

2. A hack saw as defined in claim 1 , wherein a length of the slot from the proximal pin holder retaining member to the proximal pin holder cavity is less than a length of the proximal pin holder from a proximal end to a distal end of the proximal pin holder.

3. A hack saw as defined in claim 1 , wherein the proximal pin holder retaining member prevents full insertion of the proximal portion of the proximal pin holder into the slot when the proximal pin holder retaining member is in the first position, and wherein the proximal pin holder retaining member allows full insertion of the proximal portion of the proximal pin holder into the slot when the proximal pin holder retaining member is in the second position.

4. A hack saw as defined in claim 3 , wherein the proximal pin holder retaining member is the at least one of resiliently movable and compressible from the first position to the second position upon application of a force thereto within a range of 2 to 20 pounds.

5. A hack saw as defined in claim 1 , wherein the handle further comprises a hand grip and a hand guard distally spaced apart from the hand grip, and wherein the hand grip and the hand guard are connected to one another by the retaining arm.

6. A hack saw as defined in claim 1 , wherein the retaining arm comprises a pair of opposing sidewalls extending from a base of the retaining arm and defining a cavity therebetween, and wherein the proximal pin holder retaining member at least one of (i) extends from one of the sidewalls toward the other sidewall and (ii) extends from the base.

7. A hack saw as defined in claim 1 , wherein the proximal pin holder retaining member comprises a retaining wall located within a cavity of the retaining arm.

8. A hack saw as defined in claim 1 , wherein the proximal pin holder cavity is configured to prevent the proximal portion of the proximal pin holder from passing therethrough.

9. A hack saw as defined in claim 6 , wherein the handle further comprises an alignment member located within the slot between the proximal pin holder retaining member and the proximal pin holder cavity and configured to align the proximal pin holder in a direction substantially parallel to the sidewalls of the retaining arm, and wherein a distance between the alignment member and the proximal pin holder retaining member is equal to or greater than a length of the proximal portion of the proximal pin holder.

10. A hack saw as defined in claim 9 , wherein the alignment member comprises a pair of opposing projections projecting from respective opposing sidewalls of the retaining arm inwardly into the slot and defining a gap therebetween configured to receive the proximal pin holder therein.

11. A hack saw as defined in claim 10 , wherein the gap is configured to substantially allow rotation of the proximal pin holder when the distal portion of the proximal pin holder is located therein and to substantially prevent rotation of the proximal pin holder when the proximal portion of the proximal pin holder is located therein.

12. A hack saw as defined in claim 1 , further comprising the proximal pin holder and a distal pin holder.

13. A hack saw as defined in claim 12 , further comprising a hack saw blade mounted to the proximal pin holder and the distal pin holder.

14. A hack saw comprising:
a proximal end;
a distal end; and
a handle located at the proximal end of the hack saw and spaced apart from the distal end of the hack saw for mounting a hack saw blade therebetween, the handle comprising:
a retaining arm located at a base end of the handle, the retaining arm comprising a proximal end, a distal end, and a proximal pin holder cavity defined in the distal end of the retaining arm and configured to allow a distal portion of a proximal pin holder to pass therethrough; and
a proximal pin holder retaining member secured to the retaining arm and proximally spaced apart from the proximal pin holder cavity such that the proximal pin holder retaining member is positioned between the proximal pin holder cavity and the proximal end of the retaining arm, the proximal pin holder retaining member and the proximal pin holder cavity defining a slot therebetween configured to receive a proximal portion of the proximal pin holder therein;
wherein the proximal pin holder retaining member is resiliently deflectable from a first position to a second position proximally displaced from the first position such that at least a portion of the proximal pin holder retaining member is positioned closer to the proximal end of the retaining arm when the proximal pin holder retaining member is in the second position, and wherein the proximal pin holder retaining member prevents removal of the proximal portion of the proximal pin holder from the slot when the proximal pin holder retaining member is in the first position.

15. A hack saw as defined in claim 14 , wherein the proximal pin holder retaining member is integrally formed with the retaining arm.

16. A method comprising:
providing a hack saw frame comprising a proximal end, a distal end, and a handle located at the proximal end of the hack saw frame and spaced apart from the distal end of the hack saw frame for mounting a hack saw blade therebetween, the handle comprising:
a retaining arm located at a base end of the handle, the retaining arm comprising a proximal end, a distal end, and a proximal pin holder cavity defined in the distal end of the retaining arm; and
a proximal pin holder retaining member integrally formed with the retaining arm and proximally spaced apart from the proximal pin holder cavity such that the proximal pin holder retaining member is positioned between the proximal pin holder cavity and the proximal end of the retaining arm, the proximal pin holder retaining member and the proximal pin holder cavity defining a slot therebetween;

passing a distal portion of a proximal pin holder through the proximal pin holder cavity, the proximal pin holder comprising a blade mounting pin projecting f

Assignees

• Irwin Ind Tool Co

Inventors

• Green Matthew C

Classifications

• B23D51/10

  for hand-held or hand-operated devices · CPC title

• B23D51/12 Primary

  for use with tools, dealt with in this subclass, which are connected to a carrier at both ends, e.g. bows adjustable in length or height · CPC title

• Y10T29/49826

  Assembling or joining · CPC title

• B23D51/14

  Attachment of the tool · CPC title