Container with buffered cover

#1. Field of Invention

#The present invention relates to a container, and more particularly to a container cover for a container, wherein the container cover incorporates with an induction-actuated arrangement to open and close the cover panel of the container cover in a hydraulic manner.

#2. Description of Related Arts

#FIG. 1 is a schematic diagram showing configuration of the delay-closing container according to a first embodiment of the present invention.

#FIG. 2 is a block diagram according to the above first preferred embodiment of the present invention.

#FIG. 3 is a circuit diagram according to the above first preferred embodiment of the present invention.

#Accordingly, the reference characters of the present invention are: 1-route feeler, 11-magnetic control switch, 12-computing device, 2-cut-off circuit, 3-short circuit circuitry, 4-electric motor, 6-comparing circuit, 7-delay circuit.

#Referring to FIGS. 1 and 2 of the drawings, a container according to the first preferred embodiment of the present invention comprises a container body, a container cover having a cover panel, an electric motor, and a transmission device. The electric motor is transmissively connected with a driven member of the cover panel through the transmission device. The container cover further comprises a route feeler 1 electrically connected to a controlled end of a cut-off circuit 2, wherein the cut-off circuit 2 is electrically connected to the electric motor 4. The cut-off circuit 2 receives a signal from the route feeler 1 to activate the electric motor 4, wherein the route movement of the electric motor 4 at a trigger point is shorter than the route of the cover panel, i.e. between the open state of the cover panel and the close state thereof. Accordingly, the route movement of the electric motor 4 reaching at the trigger point is approximately 70% of the route of the cover panel. The route sensor and controller further comprises a short-circuit circuitry 3, wherein the controlling end of the short-circuit circuitry 3 is electrically connected to the route feeler 1 and is electrically coupled between two terminals of the electric motor 4. The route sensor comprises a route switch and a cam. For closing the cover panel, the DC electric motor 4 is powered with backward direct current, i.e. the opposite direction of the current of opening the cover panel. Then, the electric motor 4 drives the cover panel to its close state through a decelerating gear unit of the transmission device. When the cover panel moves at a position close to its close state, for example, the cover panel has been moved 80° from the total route of 90°, the cam of the route feeler 1 is triggered by the route switch to send a signal to the cut-off circuit 2 and the short-circuit circuitry 3 so as to deactivate the electric motor 3. Therefore, the electric motor 3 is stopped to generate the output to the cover panel. Since the cover panel is not completely closed, the cover panel will keep moving to its close state by inertia. It is worth to mention that when the cover panel moves by its inertia, the power from the cover panel transmits to the electric motor through the transmission device such that the electric motor becomes a dynamo. Since the current passes through the coil in the electric motor after the electric motor is cut off, the electric motor generates a braking output to stop the movement of the cover panel in a relatively short period of time. Such braking effect is the same as braking a car.

#As shown in FIG. 3, when closing the cover panel, output of IC3 is in higher level, RA0 and Rb7 is in lower level. Q3 and Q4 in the driving circuit are connected while Q2 and Q5 are cut off. The electric motor M generates an opposed rotational output under an opposed voltage to drive the gear unit, the cam and the cover panel to rotate. When the cover panel moves at a position close to its close state, i.e. moving 80° from the total route of 90°, the cam 3 contacts the route switch. After the route switch is triggered, the output terminal RA3 of IC3 reaches to a higher level from its lower level. Through the process of IC3, the outputs of RA1 and RA0 become lower level and deactivate the triodes Q2 and Q3. RB7 outputs a higher energy level that triodes Q3 and Q5 are connected through D5, R12 and D6, R21 respectively. After Q3 and Q5 are connected with D8 and D7 respectively, the two terminals of the electric motor form a positive and negative loops as a short circuit of the electric motor. After the motor is stopped generating the output, the cover will continuously move to its close state by inertia through the 10° of route. At the same time, the electric motor will generate the braking output to the cover panel to slow down the cover panel as a braking effect. Therefore, the cover panel will completely close with lower speed to minimize the noise from the movement of the cover panel with respect to the container body. It is worth to mention that all other necessary components of the container, which are not mentioned above, are the same as the conventional container.