公开(公告)号：US3711812A

公开(公告)日：1973-01-16

申请号：US3711812D

申请日：1971-11-29

Applicant: DEL MAR ENG LAB

Inventor： CHERRY R

IPC: A61B5/0402 ,  A61B5/22 ,  A61H1/02 ,  A63B22/02 ,  A63B22/06 ,  A63B23/04 ,  A63B24/00 ,  A63B23/06

CPC classification number: A63B22/02 ,  A63B22/025 ,  A63B2071/0072

Abstract: An improved drive and control system for an exercise treadmill is provided which incorporates safety features for the prevention of a start-up at high belt speed after the treadmill has been turned off, or upon the resumption of power after a power failure, and to prevent rapid acceleration of the belt to a high speed condition in the case of certain control circuit failures. Circuitry, or other means, has been included in the drive system as an interlock whereby the manual on-off switch which activates the drive motor will not be effective until the motor speed control has been reset to the zero speed position. In addition, circuitry is included to provide for shutting down the drive motor in the event of a failure or malfunction in its control circuitry which could cause an unscheduled rapid increase in the treadmill belt speed to a high speed condition.

Abstract translation: 提供了一种用于运动跑步机的改进的驱动和控制系统，其包括用于在跑步机关闭之后或在停电后恢复动力时防止在高皮带速度下启动的安全特征，并且防止 在某些控制电路故障的情况下，将皮带快速加速到高速状态。 电路或其他方式已经被包括在驱动系统中作为互锁，由此在马达速度控制已经被重置到零速度位置之前，激活驱动马达的手动开 - 关开关将不会有效。 此外，包括电路以提供在其控制电路中发生故障或故障的情况下关闭驱动电机，这可能导致跑步机皮带速度到高速状况的非计划的快速增加。