IP Library › Granted Patent US 12,370,973
Granted Patent B2
US 12,370,973 · App. 18/844,440 · Granted Jul 29, 2025

Locking tool

Inventor: Kazuki Takahama (Himeji, JP)
Assignee: NIPPON KAYAKU KABUSHIKI KAISHA
B60R21/2338B60R2021/23384B60R2021/23388
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Quick Facts
Patent No.
US 12,370,973
App. No.
18/844,440
Granted
Jul 29, 2025
Kind
B2
Abstract

A locking tool includes an igniter, a cup-shaped member, a holder and a weak portion. The cup-shaped member includes a cylindrical portion fitted into a tip portion of the igniter, a bottom portion positioned on a side of the tip portion of the igniter, and an actuation pin that is formed outside the bottom portion and configured to lock an object. The holder holds the igniter and the cup-shaped member. The weak portion is formed at a position facing an outer peripheral portion of the actuation pin inside the bottom portion of the cup-shaped member.

Claims (8)

1. A locking tool, comprising:

an igniter;

a cup-shaped member including a cylindrical portion fitted into a tip portion of the igniter, a bottom portion positioned on a side of the tip portion of the igniter, and an actuation pin formed outside the bottom portion and configured to lock an object; and

a holder that holds the igniter and the cup-shaped member,

wherein the cup-shaped member has a weak portion formed at a position facing an outer peripheral portion of the actuation pin inside the bottom portion of the cup-shaped member.

2. The locking tool according to claim 1 , wherein the weak portion is an annular recess.

3. The locking tool according to claim 2 , wherein the cup-shaped member has a flange portion positioned at an end portion of the cup-shaped member on a side opposite to a side of the bottom portion, and the flange portion and the igniter are both fixed to the holder by caulking a caulking portion positioned at an end portion of the holder on a side of the igniter from an outside of the flange portion.

4. The locking tool according to claim 1 , wherein the cup-shaped member has a flange portion positioned at an end portion of the cup-shaped member on a side opposite to a side of the bottom portion, and the flange portion and the igniter are both fixed to the holder by caulking a caulking portion positioned at an end portion of the holder on a side of the igniter from an outside of the flange portion.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 6, 2024
From: TAKAHAMA, KAZUKI
To: NIPPON KAYAKU KABUSHIKI KAISHA
Reel/Frame 068505/0366 →
Priority Claims (1)
JP 2022-050937 · Mar 25, 2022 · national
Continuity (1)
Related Publication 20250187559A1 · Jun 12, 2025
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