Condition regulating device for the meters for measuring the quantity of motion

• US 4,560,861 A
• Filed: 09/25/1984
• Issued: 12/24/1985
• Est. Priority Date: 03/15/1984
• Status: Expired due to Fees

• Current Assignee: Yamasa Tokei Meter Company Limited Japan
• Original Assignee: Yamasa Tokei Meter Company Limited
• Inventors: Kobayashi, Hiroyuki, Yamamoto, Yukio, Kato, Yasuji
• Primary Examiner(s): Fuller, Benjamin R.
• Application Number:
  US06/654,230
• Time in Patent Office: 455 Days
• Field of Search: 235/105, 235/95 C
• US Class Current: 235/105
• CPC Class Codes: G01C 22/00 Measuring distance traversed on the ground by vehicles, persons, animals or other moving solid bodies, e.g. using odometers, using pedometers

Abstract

A condition regulating device for meters for measuring the quantity of motion which have a sensor including a pendulum for sensing vibrations, and components for transmitting the swinging of the pendulum to a display for displaying the swinging of the pendulum as a function of the quantity of motion. The device includes an externally threaded regulating shaft having both its ends rotatably supported on a frame, a movable member designed to be in engagement with the external thread of the shaft and reciprocate axially in association with the rotation of the shaft, a lower limit stopper for the pendulum, which is integral with the movable member, a buffer lever rotatably mounted on the frame, which is designed such that, when the acceleration acting upon the pendulum exceeds a certain value, it buffers the swinging of the pendulum and the other end secured to the other end of the buffer lever.

Claims

1. In a meter for measuring the quantity of motion of a pedestrian and adapted to be worn thereby, which comprises sensor means including a pendulum for sensing vibrations, display means for displaying the swinging of said pendulum as a function of motion, and transmission means for transmitting the swinging of said pendulum to said display means, the improvement comprising a fixed upper limit stopper for said pendulum, an adjustable lower limit stopper for said pendulum, and a buffer assembly, said buffer assembly comprising an externally threaded regulating shaft rotatably supported at both ends on a fixed support, a movable member in engagement with the external thread of said shaft and adapted to reciprocate axially responsive to the rotation of said shaft, said lower limit stopper being integral with said movable member, a buffer lever rotatably mounted on said fixed support and adapted, when the acceleration acting upon said pendulum exceeds a predetermined value, to buffer the swinging of said pendulum at one end of said buffer lever, and a loop-like spring having one end secured to said pendulum and the other end secured to the other end of said buffer lever.