Conveyor system
First Claim
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1. A conveyor system for running a carriage (1) by utilizing the inertia thereof along a conveyance path (6) comprising:
- a main power source (21) for driving said carriage;
an auxiliary power source (22) for driving said carriage when said main power source becomes faulty;
a plurality of spaced apart drive means (9) disposed along said conveyance path for imparting a forward propelling force or a reverse propelling force to said carriage by using said main power source or said auxiliary power source;
means (25) for detecting an abnormal condition of said main power source;
transfer means (23) responsive to an abnormal signal outputted by said abnormal condition detecting means for switching a drive source from said main power source to said auxiliary power sourceposition detecting means (10) for detecting a position of said carriage running along said conveyance path;
first control means (20,
23) which, when said abnormal signal is outputted, selects said drive means based on an output of said position detecting means so as to drive said drive means from said auxiliary power source thereby running said carriage to a position of said drive means, andsecond control means for stopping said carriage at a position of a predetermined one of said drive means driven by said first control means by actuating a predetermined one of said drive means by using said auxiliary power source.
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Abstract
A plurality of spaced drive means are disposed along a conveyance path for running a carriage along the conveyance path by a forward or reverse propelling force created by the drive means. A main power source and an auxiliary power source are provided for switching a power source from the main power source to the auxiliary power source when the former becomes faulty for running and stopping the carriage at a selected one of the drive means for the purposes of preventing the carriage from stopping at an intermediate point between adjacent drive means.
28 Citations
17 Claims
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1. A conveyor system for running a carriage (1) by utilizing the inertia thereof along a conveyance path (6) comprising:
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a main power source (21) for driving said carriage; an auxiliary power source (22) for driving said carriage when said main power source becomes faulty; a plurality of spaced apart drive means (9) disposed along said conveyance path for imparting a forward propelling force or a reverse propelling force to said carriage by using said main power source or said auxiliary power source; means (25) for detecting an abnormal condition of said main power source; transfer means (23) responsive to an abnormal signal outputted by said abnormal condition detecting means for switching a drive source from said main power source to said auxiliary power source position detecting means (10) for detecting a position of said carriage running along said conveyance path; first control means (20,
23) which, when said abnormal signal is outputted, selects said drive means based on an output of said position detecting means so as to drive said drive means from said auxiliary power source thereby running said carriage to a position of said drive means, andsecond control means for stopping said carriage at a position of a predetermined one of said drive means driven by said first control means by actuating a predetermined one of said drive means by using said auxiliary power source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A conveyor system for running a carriage (1) by utilizing the inertia thereof along a conveyance path (6) comprising:
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a main power source (21) for running said carriage; an auxiliary source (22) for running said carriage when said main power source becomes faulty; a plurality of spaced apart drive means installed along said conveyance path for imparting a forward or reverse propelling force to said carriage by using said main power source or said auxiliary source; detecting means (25) for detecting an abnormal condition of said main power source; transfer means (23) responsive to an output signal of said abnormal detecting means for switching a power source for said plurality of drive means from said main source to said auxiliary power source; position detecting means (10) for detecting a position of said carriage on said conveyance path; control means responsive to an output of said abnormal detecting means for selecting one of said drive means in accordance with an output of said position detecting means for controlling said selected drive means for stopping said carriage at a position of a predetermined drive means. - View Dependent Claims (10)
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11. A conveyor system for running a carriage (1) by utilizing the inertia thereof along a conveyance path (6) comprising:
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a main power source (21) for running said carriage; an auxiliary power source (22) for running said carriage when said main power source becomes faulty; a plurality of spaced drive means (9) installed along said conveyance path for imparting a forward propelling force or a reverse propelling force to said carriage by using said main power source or said auxiliary power source; means (25) for detecting an abnormal condition of said main power source; transfer means (23) responsive to an output of said abnormal condition detecting means for switching a power source from said main power source to said auxiliary power source; position detecting means for detecting a position of said carriage on said conveyance path; control means (20,
23) responsive to an output of said abnormal detecting means for selecting one of said drive means based on an output of said position detecting means for running said carriage to said selected drive means, andmechanical clamping means (11) provided for some of said drive means for holding said carriage at stopped position on said drive means. - View Dependent Claims (12, 13, 14)
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15. A conveyor system for running a carriage (1) along a conveyance path (16) comprising:
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a main power source (21) for running said carriage; an auxiliary power source (22) for running said carriage when said main power source becomes faulty; a plurality of spaced apart drive means (9) disposed along said conveyance path for imparting a forward propelling force or a reverse propelling force to said carriage by utilizing said main power source or said auxiliary power source; means (25) for detecting an abnormal condition of said main power source; transfer means (23) responsive to an output of said abnormal condition detecting means for switching a power source from said main power source to said auxiliary power source; position detecting means (10) for detecting a position of said carriage on said conveyance path; a first control means responsive to an output of said abnormal detecting means for selecting one of said drive means for actuating the same by using said auxiliary power source thereby causing said carriage to run to said selected drive means; second control means (20,
23) for actuating said selected drive means by using said auxiliary power source so as to stop said carriage runned by said first control means at said selected drive means; andmechanical clamping means (11) provided for said drive means for clamping said carriage at a stop position of said selected drive means. - View Dependent Claims (16, 17)
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Specification