IP Library › Granted Patent US 12,577,817
Granted Patent B2
US 12,577,817 · App. 18/422,632 · Granted Mar 17, 2026

Vehicle inside door lever assembly

Inventors: James D. Cunningham (Clarkston, MI); Justin B. Norris (Brighton, MI)
Assignees: Toyota Motor Engineering & Manufacturing North America, Inc.; Toyota Jidosha Kabushiki Kaisha
E05B85/16E05B85/12
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Quick Facts
Patent No.
US 12,577,817
App. No.
18/422,632
Granted
Mar 17, 2026
Kind
B2
Abstract

A vehicle inside door lever assembly includes a frame, a lever rotatably mounted on the frame so as to be rotatable with respect to the frame, and a torsion spring structured and operably connected to the lever and the frame so as to rotationally bias the lever in a first rotational direction, toward a closed and latched condition of the lever. An extension spring is structured and operably connected to the lever and the frame so as to rotationally bias the lever in the first rotational direction when the spring is in tension. In a lever where a side impact force acting on the lever would tend to rotate the lever in a second rotational direction opposite the first rotational direction, the arrangement described may prevent the lever from swinging inwardly in the second rotational direction toward an unlatched condition and releasing the door latch.

Claims (14)

1 . A vehicle inside door lever assembly comprising:

a frame;

a lever rotatably mounted on the frame;

a torsion spring structured and operably connected to the lever and the frame so as to rotationally bias the lever in a first rotational direction when the lever is not in physical contact with a user; and

an extension spring structured and operably connected to the lever and the frame so as to rotationally bias the lever in the first rotational direction when the extension spring is in tension.

2 . The inside door lever assembly of claim 1 , wherein the lever comprises a base portion and a gripping portion extending from the base portion, and wherein a center of mass of the lever is located along the gripping portion.

3 . The inside door lever assembly of claim 1 , wherein the lever comprises an extension spring lever connection portion including a plurality of holes formed therealong, each hole being structured to receive an end of an extension spring therein.

4 . The inside door lever assembly of claim 3 , wherein the extension spring lever connection portion is flat and the spring-receiving holes have central axes which are coplanar.

5 . The inside door lever assembly of claim 3 , wherein the extension spring lever connection portion is arcuate, and the spring-receiving holes are equi-angularly spaced apart along the arcuate portion.

6 . The inside door lever assembly of claim 3 , wherein the frame includes an extension spring frame connection feature, and wherein the extension spring lever connection portion is arcuate and the spring-receiving openings are positioned equidistant from the extension spring frame connection feature.

7 . The inside door lever assembly of claim 1 , wherein the frame includes an extension spring frame connection feature positioned along a first side of a plane extending along a rotational axis of the lever, and wherein a center of mass of the lever is located along a second side of the plane opposite the first side.

8 . A vehicle inside door lever assembly comprising:

a frame;

a lever rotatably mounted on the frame, the lever having an arcuate extension spring lever connection portion including a plurality of holes distributed along the arcuate portion so as to be spaced equidistantly from an extension spring frame connection feature formed on the frame.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 22, 2026
From: TOYOTA JIDOSHA KABUSHIKI KAISHA
To: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
Reel/Frame 074740/0569 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 9, 2024
From: CUNNINGHAM, JAMES D.; NORRIS, JUSTIN B.
To: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.; TOYOTA JIDOSHA KABUSHIKI KAISHA
Reel/Frame 066427/0206 →
Continuity (1)
Related Publication 20250243697A1 · Jul 31, 2025
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