Tension fed fastener installation tool and related methods of use

Patent metadata

Field	Value
Publication number	US-2017239795-A1
Application number	US-201715430844-A
Country	US
Kind code	A1
Filing date	Feb 13, 2017
Priority date	Feb 19, 2016
Publication date	Aug 24, 2017
Grant date	—

Abstract

An installation tool and related methods are provided. The tool can pull a strip of collated fasteners along a collated fastener path to a guide, where individual fasteners are sequentially separated from the strip and advanced into a workpiece. The tool can include a tension feeder located downstream of the guide. The tension feeder is configured to apply tension to the strip between the guide and a leading end of the strip. The tool can include a driveshaft configured to attach to a conventional drive tool chuck or a drive tool having hexagonal type drive components. The guide can be one piece and replaceable, with a guide body and a guide head. A strip slot can be defined in the same to align a fastener head with a backstop and facilitate entry of a fastener shank in a feed slot. Related methods of use are provided.

First claim

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:

1 . A fastener installation tool comprising:
a frame, a guide joined with the frame, the guide defining a bore; a feeder joined with the frame, the feeder configured to move a strip of collated fasteners along a collated fastener path past the guide; a drive element adapted to advance a fastener through the bore; and a driveshaft extending through the frame from an installation end adjacent the drive element to a drive end including a main drill drive attachment body, wherein the main drill drive attachment body includes an exterior surface configured to engage a chuck of a first drive tool when the main drill drive attachment body is inserted within the chuck, wherein the main drill drive attachment body has a first dimension taken perpendicular to a longitudinal axis of the driveshaft, the first dimension measured from a first portion of the exterior surface to a second portion of the exterior surface across the longitudinal axis of the driveshaft, wherein the main drill drive attachment body defines a socket configured to receive and rotationally restrain a replaceable drive bit, so that a first portion of the replaceable drive bit extends into the driveshaft, and so that a second portion of the replaceable drive bit extends outward beyond the main drill drive attachment body for attachment to a chuck of a second drive tool, wherein the socket has a second dimension taken perpendicular to the longitudinal axis of the driveshaft, the second dimension being less than the first dimension, whereby an operator of the fastener installation tool can selectively connect either the chuck of the first drive tool to the exterior surface of the main drill drive attachment body, or the chuck of the second drive tool to the second portion of the replaceable drive bit that extends outward beyond the main drill drive attachment body, depending on which drive tool is available to the operator.

2 . The fastener installation tool of claim 1 comprising a locking element that releasably engages an annular recess of the replaceable drive bit to secure the replaceable drive bit to the main drill drive attachment body.

3 . The fastener installation tool of claim 2 ,
wherein the locking element includes a locking ring slidable along the longitudinal axis and a spring configured to engage the locking ring to a locked mode, wherein in the locked mode, the locking ring urges a ball into the annular recess of the replaceable drive bit so that the bit cannot be removed from the socket.

4 . The fastener installation tool of claim 1 ,
wherein the socket is hexagonal in shape, and wherein the exterior surface includes a plurality of angled facets configured to interface with a plurality of corresponding surfaces of the chuck of the first drive tool.

5 . The fastener installation tool of claim 1 ,
wherein the first portion of the replaceable drive bit includes a drive feature that is at least one of usable and worn out, wherein the drive feature is concealed within the driveshaft when the replaceable drive bit is received in the socket, wherein the second portion of the replaceable drive bit, that extends outward beyond the main drill drive attachment body, is hexagonal in shape.

6 . The fastener installation tool of claim 1 ,
wherein the frame includes a handle, wherein the frame surrounds the driveshaft so as to prevent operator contact with the driveshaft when the driveshaft rotates.

7 . The fastener installation tool of claim 1 ,
wherein the drive element includes another replaceable drive bit and is configured to fit within another socket defined in the installation end of the driveshaft.

8 . A fastener installation tool comprising:
a guide defining a bore, a driveshaft having an installation end and a drive end distal from the installation end, the drive end including a main drill drive attachment body, a guide defining a bore adjacent the installation end; wherein the main drill drive attachment body includes an exterior surface configured to engage a chuck of a first drive tool; wherein the main drill drive attachment body defines a socket configured to receive and rotationally restrain a replaceable drive bit, so that at least one of a worn out and a usable drive feature of the replaceable drive bit extends in the driveshaft, and so that a second portion of the replaceable drive bit extends outward beyond the main drill drive attachment body for attachment to a chuck of a second drive tool, whereby an operator of the fastener installation tool can selectively connect either the chuck of the first drive tool to the exterior surface of the main drill drive attachment body, or the chuck of the second drive tool to the second portion of the replaceable drive bit that extends outward beyond the main drill drive attachment body, depending on which drive tool is available to the operator.

9 . The fastener installation tool of claim 8 comprising:
a feeder joined with the frame, the feeder configured to move a strip of collated fasteners sequentially along a collated fastener path past the guide.

10 . A method of using a fastener installation tool comprising:
providing a fastener installation tool including a guide defining a bore, and a driveshaft having an installation end and a drive end distal from the installation end, the drive end including a main drill drive attachment body, installing a first replaceable bit adjacent or in the installation end; installing a second replaceable bit in a socket defined by the main drill drive attachment body, so that at least one of a usable and a worn out drive feature is inaccessible and disposed within the driveshaft, and so that a second portion extends from the main drill drive attachment body; joining a first drive tool with the second portion; rotating the first replaceable bit; and advancing a fastener through the bore with the first replaceable bit.

11 . The method of claim 10 comprising:
moving a strip of collated fasteners along a collated fastener path past the guide with a feeder.

12 . The method of claim 10 comprising:
removing the first replaceable bit from the installation end;
removing the second replaceable bit from the drive end;
installing the first replaceable bit in the socket; and
advancing another fastener through the bore with a third replaceable bit.

13 . The method of claim 10 comprising:
after the rotating and advancing steps;
removing the second replaceable bit from the drive end; and
joining a second drive tool with the main drill attachment body so that the second drive tool engages an exterior surface of the main drill attachment body.

14 . A fastener installation tool guide comprising:
a guide body defining a guide bore and including a sidewall defining a feed slot configured so that a shank of a fastener can enter the guide bore through the feed slot; a guide head joined with the guide body, the guide head above the guide bore, the guide head including a backstop configured to engage a head of a fastener to facilitate tilting of the shank so as to align the fastener with the guide bore, wherein a carrier slot is defined below the backstop and above the feed slot, the carrier slot configured to slidably receive a collated fastener carrier carrying the fastener.

15 . The fastener installation tool guide of claim 14 ,
wherein the guide body and the guide head are integral with one another to form a single piece guide unit, wherein the carrier slot is defined throu

Assignees

• Nat Nail Corp

Inventors

• Vandenberg Roger A

Classifications

• B25B21/002

  for special purposes · CPC title

• B25C1/003

  for belts of nails · CPC title

• B25B23/045 Primary

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

• F16B27/00

  Bolts, screws, or nuts formed in integral series but easily separable, particularly for use in automatic machines {(arrangements for feeding screws or nuts in spanners, wrenches or screw-drivers with built-in magazines B25B23/06)} · CPC title

• B25B23/005

  Screw guiding means · CPC title