US 12,251,804 B2Granted

Magazine fastener guide for a fastener driving tool

AssigneeKyocera Senco Industrial Tools, Inc.

InventorAlexander L. Carrier

Life of this patent

Estimating the term…

Abstract

A fastener magazine for a fastener driving tool has a movable guide that allows fasteners of various lengths to be loaded in the magazine. When engaged, the movable guide sequentially directs each fastener's movement during a drive stroke. When disengaged, the movable guide does not interfere with each fastener's movement during a drive stroke. In the engaged position, the movable guide prevents a fastener from complete “backtracking” back into the magazine during a drive stoke, which otherwise could potentially cause a jam condition.

Claims24

Dependent claims

A fastener magazine for a fastener driving tool, comprising:

(a) a magazine housing including a first end and a second end, and a longitudinal axis that extends between said first and second ends, said magazine housing configured to hold a plurality of fasteners that are placed between said first and second ends and are movable therebetween;
(b) a mounting bracket on said magazine housing proximal to said first end;
(c) a fastener pusher that biases said plurality of fasteners toward said first end;
(d) a movable fastener guide secured to said mounting bracket;
(e) said movable fastener guide having an engaged position and a disengaged position and said movable fastener guide comprises:
a knob, a stem, a spring, a knob mounting pin, and a gate;
wherein:
(f) if in said engaged position, said movable fastener guide sequentially directs one of said plurality of fasteners toward said first end of the magazine in a manner such that one of said plurality of fasteners is prevented from completely backtracking, by mechanically interfering with a movement of said one of said plurality of fasteners that becomes misaligned;
and
(g) if in said disengaged position, said movable fastener guide does not mechanically interfere with a movement of said one of said plurality of fasteners;
(h) the knob that is connected by the stem to the gate, in which said knob is rotatable along a pivot axis that extends along said stem between said knob and said gate, in which said knob and said gate rotate together between a first angular position and a second angular position, wherein said first angular position corresponds to said engaged position of said movable fastener guide, and wherein said second angular position corresponds to said disengaged position of said movable fastener guide;
(i) the spring that is mounted along said stem, between said knob and a magazine surface, such that:
(i) if said knob is rotated to said second angular position, said spring biases said knob away from the magazine surface so that the knob is forced by said spring to an extended, distal position that is spaced-apart from the magazine surface;
(ii) if said knob is actuated by being rotated to said first angular position and pressed toward said magazine surface, it thereby moves into a non-extended position that is proximal to the magazine surface;
and
(j) the knob mounting pin that runs through said stem and which keeps said knob from moving away from said non-extended position, so long as the knob is not rotated to said second angular position.

13 more elements

A fastener driving tool, comprising:

(a) a cylinder that includes a piston, said cylinder including a variable displacement volume on a first side of said piston, and said cylinder including a variable venting volume on a second, opposite side of said piston;
(b) a storage chamber;
(c) an end cap that is attached to at least one of said cylinder and said storage chamber near an end portion of said fastener driving tool;
(d) a driver that is in mechanical communication with said piston;
(e) a guide body that guides movements of said driver;
(f) a magazine housing including a first end and a second end, said magazine housing configured to hold a plurality of fasteners;
(g) a mounting bracket on said magazine housing proximal to said first end;
(h) a movable fastener guide secured to said mounting bracket, said movable fastener guide comprises:
(i) a gate;
(ii) a knob including a stem, which is mounted on said mounting bracket;
and
(iii) a spring mounted on said stem between said knob and said mounting bracket, and said spring biases said knob from said mounting bracket;
(i) said movable fastener guide including an engaged position and a disengaged position;
wherein:
(j) in said engaged position, said movable fastener guide sequentially directs one of said plurality of fasteners in a manner such that said fastener is prevented from completely backtracking;
and
(k) in said disengaged position, said movable fastener guide does not sequentially direct said plurality of fasteners.

14 more elements

A guide for use in a fastener magazine for use with a fastener driving tool, said guide comprising:

(a) a knob that is sized and shaped for actuation by a human hand, said knob being mounted on a surface of the fastener magazine, proximal to an exit end of said fastener magazine;
(b) a gate that is also located proximal to said exit end of the fastener magazine;
(c) a stem that resides between said knob and said gate, and has sufficient structural rigidity so that said gate is forced to move rotationally if said knob is moved rotationally;
(d) a spring that creates a biasing force against said knob and against said surface of the fastener magazine;
and
(e) a knob holding pin that secures the knob at said surface of the fastener magazine;
wherein:
(f) said knob and gate are movable between a disengaged position and an engaged position, such that:
(i) if said knob and said gate are in said disengaged position, then the gate resides in a non-interfering location, and a fastener moving through said fastener magazine will not make physical contact with the guide;
and
(ii) if said knob and said gate are in said engaged position, then the knob holding pin keeps the knob in that engaged position until released by an action of a human hand, and the gate resides in an interfering location, in which a misaligned fastener will make physical contact with a ramp portion of the guide, as the fastener is being driven by a moving driver of the fastener driving tool that is adjacent to said exit end of the fastener magazine.

8 more elements

A method for attaching a fastener magazine to a fastener driving tool, the method comprising:

(a) providing the fastener driving tool that includes at least a housing, a handle portion, a front end subassembly proximal to an exit end of the fastener driving tool;
said front end subassembly comprising a rounded receptacle subassembly, and a guide body having a bottom portion and a backplate, said rounded receptacle subassembly including at least:
(i) an opening in the backplate of said guide body, said opening exhibiting a geometric center;
(ii) a ramp surface;
and
(iii) a first corner between said opening and said ramp surface;
(b) providing a removably attachable fastener magazine having a magazine housing including a first end and a second, end, and a longitudinal axis that extends between said first and second ends, said magazine housing configured to hold a plurality of fasteners that are placed between said first and second ends and are movable therebetween, said fastener magazine exhibiting a fulcrum portion that includes:
(i) a cylindrical outer surface;
(ii) a side protrusion proximal to said cylindrical outer surface of the fulcrum portion;
and
(iii) an extension portion that extends between said cylindrical outer surface and said first end of the fastener magazine, said extension portion having an upper surface portion and a lower surface portion;
and
(c) attaching said fastener magazine to said fastener driving tool by:
(i) inserting said side protrusion into said opening of the backplate;
(ii) rotating said fulcrum portion around said geometric center of the opening in the backplate;
(iii) pressing said upper surface portion of the fastener magazine against said bottom portion of the guide body;
and
(iv) engaging a mounting bracket on said fastener driving tool with a latch subassembly on said fastener magazine.

15 more elements

A fastener driving tool having a removable fastener magazine, said fastener driving tool comprising:

(a) a housing, a handle portion, and a nose portion that includes a guide body having a fastener track and a first mounting bracket receiving portion, said nose portion exhibiting a rounded receptacle subassembly that includes:
(i) a bottom portion;
(ii) a rounded opening in said bottom portion;
(iii) a ramp surface proximal to said rounded opening;
and
(iv) a geometric center proximal to said rounded opening;
and
(b) the removable fastener magazine having a first end, a second end, and a longitudinal axis that extends between said first and second ends, said removable fastener magazine configured to hold a plurality of fasteners placed between said first and second ends and are movable therebetween, said removable fastener magazine including a first mounting bracket with a fulcrum portion that exhibits:
(i) a fulcrum having a cylindrical outer surface;
and
(ii) an extension portion having an upper surface portion and a lower surface portion, said extension portion extending to said fulcrum;
wherein, said removable fastener magazine pivotally attaches to said fastener driving tool at said geometric center of the rounded opening of the rounded receptacle subassembly.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/107,161Filed 8 Feb 2023 · us provisional application
Priority: 21 Feb 2022
Published: US 2023/0264331 A124 Aug 2023
Granted: 18 Mar 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

B25C 1/003
Nail feeding devices: for belts of nails
B25C 1/005
Nail feeding devices: for rows of contiguous nails
B25C 1/047
Operated by fluid pressure , e.g. by air pressure: mechanical details
B25C 5/1658
Allowing the feeding of a variety of elements: of different sizes of staples

Family

Application63/312,129Us provisional application · filed 21 Feb 2022
US 2023/0264331 A1Pre-grant publication · published 24 Aug 2023
US 12,251,804 B2This patent

From the US filing history. Foreign family members aren’t listed.

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Abstract

A fastener magazine for a fastener driving tool, comprising:

(a) a magazine housing including a first end and a second end, and a longitudinal axis that extends between said first and second ends, said magazine housing configured to hold a plurality of fasteners that are placed between said first and second ends and are movable therebetween;
(b) a mounting bracket on said magazine housing proximal to said first end;
(c) a fastener pusher that biases said plurality of fasteners toward said first end;
(d) a movable fastener guide secured to said mounting bracket;
(e) said movable fastener guide having an engaged position and a disengaged position and said movable fastener guide comprises:
a knob, a stem, a spring, a knob mounting pin, and a gate;
wherein:
(f) if in said engaged position, said movable fastener guide sequentially directs one of said plurality of fasteners toward said first end of the magazine in a manner such that one of said plurality of fasteners is prevented from completely backtracking, by mechanically interfering with a movement of said one of said plurality of fasteners that becomes misaligned;
and
(g) if in said disengaged position, said movable fastener guide does not mechanically interfere with a movement of said one of said plurality of fasteners;
(h) the knob that is connected by the stem to the gate, in which said knob is rotatable along a pivot axis that extends along said stem between said knob and said gate, in which said knob and said gate rotate together between a first angular position and a second angular position, wherein said first angular position corresponds to said engaged position of said movable fastener guide, and wherein said second angular position corresponds to said disengaged position of said movable fastener guide;
(i) the spring that is mounted along said stem, between said knob and a magazine surface, such that:
(i) if said knob is rotated to said second angular position, said spring biases said knob away from the magazine surface so that the knob is forced by said spring to an extended, distal position that is spaced-apart from the magazine surface;
(ii) if said knob is actuated by being rotated to said first angular position and pressed toward said magazine surface, it thereby moves into a non-extended position that is proximal to the magazine surface;
and
(j) the knob mounting pin that runs through said stem and which keeps said knob from moving away from said non-extended position, so long as the knob is not rotated to said second angular position.

13 more elements

Facts

Application

18/107,161Filed 8 Feb 2023 · us provisional application

Priority

21 Feb 2022

Published

US 2023/0264331 A124 Aug 2023

Granted

18 Mar 2025

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

B25C 1/003
Nail feeding devices: for belts of nails
B25C 1/005
Nail feeding devices: for rows of contiguous nails
B25C 1/047
Operated by fluid pressure , e.g. by air pressure: mechanical details
B25C 5/1658
Allowing the feeding of a variety of elements: of different sizes of staples