Dual mode pedometer
First Claim
1. A dual mode pedometer for indicating distance traveled by a user in walking or running comprising:
- a case;
a mechanical counter disposed in said case;
counter driving means coupled to said counter, said driving means including a pendulum, said driving means for advancing said counter proportional to a length of swing of said pendulum;
first pendulum biasing means for maintaining said pendulum in an at-rest position and for restoring said pendulum to its at-rest position after movement thereof responsive to a walking stride of the user; and
second pendulum biasing means for increasing the strength of said first biasing means for restoring said pendulum to its at-rest position after movement thereof responsive to a running stride of the user.
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Accused Products
Abstract
A pedometer for indicating distance traveled by a user in walking or running. A mechanical digital counter is provided and driven by a gear train from a ratchet wheel. A pivoted pendulum is maintained in an at-rest position by a first biasing spring which is suitable for use during walking. During running when more kinetic energy is developed in the pendulum, a second biasing spring may be selectively engaged with the first biasing spring to increase the tension thereof for absorbing the additional energy without damage to the apparatus. A movable stop for the pendulum is provided having an external adjustment knob to set the pendulum travel in accordance with the length of stride of the user. The user may change the length of stride and the walk/run mode without resetting of the digital distance indicator.
31 Citations
9 Claims
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1. A dual mode pedometer for indicating distance traveled by a user in walking or running comprising:
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a case; a mechanical counter disposed in said case; counter driving means coupled to said counter, said driving means including a pendulum, said driving means for advancing said counter proportional to a length of swing of said pendulum; first pendulum biasing means for maintaining said pendulum in an at-rest position and for restoring said pendulum to its at-rest position after movement thereof responsive to a walking stride of the user; and second pendulum biasing means for increasing the strength of said first biasing means for restoring said pendulum to its at-rest position after movement thereof responsive to a running stride of the user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification