IP Library Granted Patent US 8,720,013
Granted Patent B2
US 8,720,013 · App. 13/137,894 · Granted May 13, 2014

Trigger grip

Inventor: Chi-Yuan Chen (Taipei, TW)
Assignees: Yasuharu Nagaki; James Ke Liu
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Quick Facts
Patent No.
US 8,720,013
App. No.
13/137,894
Granted
May 13, 2014
Kind
B2
Abstract

A trigger grip ( 100 ) includes a body ( 10 ) including an upper jaw ( 11 ) extending laterally, a pivot section ( 12 ) depending from one end of the upper jaw ( 11 ), and a sleeve section ( 13 ) depending from another end of the upper jaw ( 11 ), the sleeve section ( 13 ) having a slot ( 131 ) and an extension ( 132 ) depending from the slot ( 131 ); a pivotal link ( 20 ) pivotably secured to the pivot section ( 12 ); a lever ( 30 ) having a first hole ( 31 ) at one end, a second hole ( 32 ) at the other end, and a protuberance ( 33 ) depending from the other end, the lever ( 30 ) being inserted through the slot ( 131 ) with its first hole ( 31 ) pivotably secured to the pivotal link ( 20 ); and a bifurcated gripping seat ( 40 ) pivotably secured to the pivotal link ( 20 ) and having a jaw member ( 41 ) engaged with the upper jaw ( 11 ) from below in an inoperative position.

Claims (16)

1. A trigger grip comprising:

a body ( 10 ) comprising an upper jaw ( 11 ) extending laterally, a pivot section ( 12 ) depending from one end of the upper jaw ( 11 ), and a sleeve section ( 13 ) depending from another end of the upper jaw ( 11 ), the sleeve section ( 13 ) including a slot ( 131 ) and an extension ( 132 ) depending from the slot ( 131 );

a pivotal link ( 20 ) pivotably secured to the pivot section ( 12 );

a lever ( 30 ) comprising a first hole ( 31 ) at one end, a second-hole ( 32 ) at the other end, and a protuberance ( 33 ) depending from the other end, the lever ( 30 ) being inserted through the slot ( 131 ) with its first hole ( 31 ) pivotably secured to the pivotal link ( 20 ), the pivotal link ( 20 ) pivotably interconnected the pivot section ( 12 ) of the body ( 10 ) and the lever go) together by an externally threaded protrusion ( 23 ) of the pivotal link ( 20 ) pivotably securing to the first hole ( 31 ) of the lever ( 30 ); and

a gripping seat ( 40 ) pivotably secured to the pivotal link ( 20 ) and comprising a jaw member ( 41 ) engaged with the upper jaw ( 11 ) from below in an inoperative position,

wherein the pivot section ( 12 ) comprises a stepped-diameter, cylindrical projection ( 121 ) extending laterally, the projection ( 121 ) including a base ( 1212 ) with the pivotal link ( 20 ) engaged therewith, an externally threaded member ( 1211 ) having a diameter smaller than that of the base ( 1212 ), and a shoulder ( 123 ) at a joining portion of the externally threaded member ( 121 ) and the base ( 1212 ), and

wherein the body ( 10 ) further comprises a positioning hole ( 122 ) proximate the base ( 1212 ) of the pivot section ( 12 ), and wherein the pivotal link ( 20 ) comprises a threaded bossed hole ( 24 ) facing the body, the trigger grip further comprising a biasing member ( 80 ) put on the projection ( 121 ), the biasing member ( 80 ) having one end ( 801 ) inserted into the positioning hole ( 122 ) for positioning, and another end ( 802 ) urging against an outer surface of the threaded bossed hole ( 24 ).

2. The trigger grip of claim 1 , wherein the gripping seat ( 40 ) further comprises two parallel plates ( 421 , 422 ) depending downward from both sides of the jaw member ( 41 ) respectively, a groove ( 43 ) defined between and by the parallel plates ( 421 , 422 ), and two aligned through holes ( 441 , 442 ) in the parallel plates ( 421 , 422 ) respectively, and wherein the pivotal link ( 20 ) is further pivotably fastened in the groove ( 43 ) by mounting a pivot pin ( 70 ) through one through hole ( 422 ), the pivotal link ( 20 ), and the other through hole ( 441 ).

3. A trigger grip comprising:

a body ( 10 ) comprising an upper jaw ( 11 ) extending laterally, a pivot section ( 12 ) depending from one end of the upper jaw ( 11 ), and a sleeve section ( 13 ) depending from another end of the upper jaw ( 11 ), the pivot section ( 12 ) including a stepped-diameter, cylindrical projection ( 121 ) extending laterally, and the sleeve section ( 13 ) including a slot ( 131 );

a pivotal link ( 20 ) pivotably secured to the pivot section ( 12 );

a lever ( 30 ) comprising a first hole at one end ( 31 ), and a second hole ( 32 ) at the other end, the lever ( 30 ) being inserted through the slot ( 131 ) with its first hole ( 31 ) pivotably secured to the pivotal link ( 20 ), the pivotal link ( 20 ) pivotably interconnected the pivot section ( 12 ) of the body ( 10 ) and the lever ( 30 ) together by an externally threaded protrusion ( 23 ) of the pivotal link ( 20 ) pivotably securing to the first hole ( 31 ) of the lever ( 30 ); and

a gripping seat ( 40 ) pivotably secured to the pivotal link ( 20 ) and comprising a jaw member ( 41 ) engaged with the upper jaw ( 11 ) from below in an inoperative position,

wherein the projection ( 121 ) including a base ( 1212 ) with the pivotal link ( 20 ) engaged therewith, an externally threaded member ( 1211 ) having a diameter smaller than that of the base ( 1212 ), and a shoulder ( 123 ) at a joining portion of the externally threaded member ( 1211 ) and the base ( 1212 ), and

wherein the body ( 10 ) further comprises a positioning hole ( 122 ) proximate the base ( 1212 ) of the pivot section ( 12 ), and wherein the pivotal link ( 20 ) comprises a threaded bossed hole ( 24 ) facing the body, the trigger-grip further comprising a biasing member ( 80 ) put on the projection ( 121 ), the biasing member ( 80 ) having one end ( 801 ) inserted into the positioning hole ( 122 ) for positioning, and another end ( 802 ) urging against an outer surface of the threaded bossed hole ( 24 ).

4. The trigger grip of claim 3 , wherein the gripping seat ( 40 ) further comprises two parallel plates ( 421 , 422 ) depending downward from both sides of the jaw member ( 41 ) respectively, a groove ( 43 ) defined between and by the parallel plates ( 421 , 422 ), and two aligned through holes ( 441 , 442 ) in the parallel plates ( 421 , 422 ) respectively, and wherein the pivotal link ( 20 ) is further pivotably fastened in the groove ( 43 ) by mounting a pivot pin ( 70 ) through one through hole ( 422 ), the pivotal link ( 20 ), and the other through hole ( 441 ).

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 22, 2025
From: NAGAKI, YASUHARU
To: HI-TOOL CO., LTD.
Reel/Frame 070909/0385 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 22, 2025
From: LIU, JAMES KE
To: AMERICAN PRESTO CORP.
Reel/Frame 070909/0453 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 7, 2014
From: CHEN, CHI-YUAN
To: LIU, JAMES KE; NAGAKI, YASUHARU
Reel/Frame 032499/0478 →
Continuity (1)
Related Publication 20120005863A1 · Jan 12, 2012