Belt drive system

A belt drive system comprising:

• a housing;
• a first pulley rotatably disposed in the housing;
• a second pulley rotatably disposed in the housing;
• a belt configured to connect the first pulley with the second pulley, wherein the first pulley drives the second pulley via the belt;
• a plunger coupled to the housing and configured to strike on the belt when actuated upon application of force;
• and
• a cover coupled to the housing and configured to rotate from a closed position to an open position with respect to the housing, the cover restricts access to components of the housing in the closed position and allows the access to components of the housing in the open position, wherein the cover defines a cutout at a location corresponding to a location of the plunger and an aperture,
• wherein a portion of the plunger is received in the cutout when the cover is in the closed position,
• wherein the aperture is configured to allow insertion of a sensing portion of a belt tension meter therethrough to determine tension in the belt;
• a projection unit mounted within the housing and configured to provide an indication in response to a movement of the cover from the closed position;
• a magnetic field sensing element mounted in the housing of the belt drive system and configured to generate a first input in response to sensing presence of a magnetic element beyond a proximal range of the projection unit, wherein the first input is indicative of the movement of the cover from the closed position to the open position;
• an accelerometer sensor configured to sense a rotation of at least one of the first pulley and the second pulley to generate the second input;
• and
• the projection unit within the housing is configured to provide a caution based on the first input and the second input.

A method of indicating a working state of a belt drive system, the method comprising:

• receiving, by a controller, a first input from a magnetic field sensing element, wherein the magnetic field sensing element is located in a projection unit mounted in a housing of the belt drive system and configured to generate the first input in response to sensing presence of a magnetic element within a proximal range of the projection unit, wherein the magnetic element is mounted on a cover of the belt drive system;
• receiving, by the controller, a second input from an accelerometer sensor, wherein the second input is indicative of the working state of the belt drive system;
• and
• regulating, by the controller, supply of power to the projection unit based on the first input and the second input, wherein the projection unit is configured to provide a caution.

A belt drive system comprising:

• a housing;
• a first pulley rotatably disposed in the housing;
• a second pulley rotatably disposed in the housing;
• a belt configured to connect the first pulley with the second pulley, wherein the first pulley drives the second pulley via the belt;
• a cover coupled to the housing with a rotating mechanism, wherein the cover is rotatable about the rotating mechanism from a closed position to an open position, and wherein the cover restricts access to components of the housing in the closed position and allows the access to the components of the housing in the open position;
• and
• a safety device configured to provide a caution, the safety device comprising:
• an actuating element mounted on the cover;
• a projection unit mounted within the housing and configured to provide an indication in response to a movement of the cover from the closed position;
• a magnetic field sensing element configured to generate a first input in response to sensing presence of the actuating element beyond a proximal range of the projection unit, wherein the first input is indicative of the movement of the cover from the closed position to the open position;
• an accelerometer sensor configured to sense rotation of at least one of the first pulley and the second pulley to generate the second input;
• and
• the projection unit is configured to provide the caution based on the first input and the second input.