SEATING DETECTING DEVICE

• US 3,829,803 A
• Filed: 12/10/1973
• Issued: 08/13/1974
• Est. Priority Date: 12/30/1972
• Status: Expired due to Term

• Current Assignee: Tsuneo Maeda
• Original Assignee: Tsuneo Maeda
• Inventors: Maeda, Tsuneo
• Primary Examiner(s): Envall, Jr., Roy N.
• Application Number:
  US05/423,616
• Time in Patent Office: 246 Days
• Field of Search: 335/205 200/61.58B,85A 340/278
• US Class Current: 335/205
• CPC Class Codes: B60N 2/002 Seats provided with an occupancy detection means mounted therein or thereon detection means responsive to presence or absence of children B60N2/266
• CPC Class Codes: B60N 2/7094 Upholstery springs
• CPC Class Codes: H01H 3/141 Cushion or mat switches
• CPC Class Codes: H01H 35/003 Switches operated by other part of human body than hands push-button switches H01H13/16; slide switches H01H15/20; cord switches H01H17/10; other switches H01H19/16 and H01H21/26
• CPC Class Codes: H01H 36/0033 Mountings; Housings; Connections

Abstract

A seating detecting device comprising a pressure receiving member of synthetic resin, a bracket of synthetic resin, a permanent magnet mounted in the pressure receiving member, and a magnetically actuated switch mounted in the bracket. The device is simple in construction, inexpensive and mechanically strong and can be very easily mounted on the seat spring in the seat of vehicles.

Claims

1. A seating detecting device comprising a bracket including a substantially disc-shaped head portion, a cavity formed in the central portion of said head portion, a neck portion extending integrally from said head portion and having a space formed therearound for receiving portions of a seat spring used in the seat of a vehicle therein, a relatively large flange portion extending integrally from said neck portion, and a holding member projecting from the lower surface of said head portion for grasping a portion of the seat spring;

a substantially discshaped pressure receiving member having a rim extending from the outer peripheral end edge thereof for fitting on said head portion of said bracket, said pressure receiving member being provided with a central recess;

a magnetically actuated switch mounted in said cavity formed in said head portion of said bracket;

a permanent magnet mounted in said central recess of said pressure receiving member opposite to said magnetically actuated switch; and

a coil spring interposed between said pressure receiving member and said head portion of said bracket.