Patent ID: 6774586
Filing Date: 2004-08-10
Classification: B65F,E05F,E05Y

Abstract:
A trash bin equipped with an automatic lifting lid, comprising:a bucket having an opening formed on an upper end thereof, the opening having a bulged rim formed therein for holding a frame, the frame having an upper side to engage with a lid; a lid mounted onto the opening of the bucket including a base seat and a shell bonding together, the base seat having a battery dock located on a rear end and right side thereof, the battery dock behind the middle of the base seat having a first strut with a first screw hole formed thereon for fastening a switch, the battery dock having a left side extended to form two anchor plates with notches formed thereon to couple with a reducing gear box, the base seat having a second strut located at the rear end and left side thereof, the second strut having a second screw hole for fastening to a circuit board, the base seat further having an upper side coupling with a shell which has a hollow casing at a rear end thereof, the casing having a trough with an opening corresponding to a notch formed on the reducing gear box, the trough having a semicircular recess located therein between two sides thereof, the recess having a rear side forming a cavity for holding a pliable material to press a jutting ledge located on the rear end of an upper lid for holding the upper lid at a desired elevation when the upper lid is lifted to an ultimate position, the cavity having a round hole formed on a rear side thereof to correspond and couple with an actuation rod of the switch, the round hole housing a pushbutton for triggering the switch; an upper lid being closely mounted onto the shell and having an arched bump located on a rear side that extends upwards from the middle to form a jutting ledge, the arched bump having two sides extended to form two lugs to couple with a pintle in the middle thereof, the pintle being coupled with a gear and a spring which aids lifting of the upper lid, a spindle being located in the semicircular recess of the trough of the hollow casing at the rear end of the shell, the gear being located in the opening of the trough to engage with a gear located above the reducing gear box for transmission, the trough further coupling with an anchor block in the middle of a lower end thereof corresponding to an arched groove formed in the semicircular recess to anchor the upper lid; a battery dock having a trough located at one end and a T-shaped coupling element extended from the middle of another end to couple with a battery lid, the battery lid having extended coupling lugs corresponding to and engaging with the trough of the battery dock; and a reducing gear box engaged with the two notches of the anchor plates having a left shell and a right shell that have respectively a first latch groove and a first latch lug, and a second latch groove and a second latch lug formed on the peripheral rims thereof to couple with each other, the left shell housing a motor on the lower left portion thereof, the motor having a front end coupling with a gear to drive a reducing gear set, two gears having an upper end extended outside a notch of the reducing gear box, the gear being engaged with a lower side of the gear located at the rear end of the upper lid when the lid is closed.