Elevator rail joint detector and elevator system
First Claim
1. An elevator rail joint detecting device characterized by comprising:
- a joint detecting portion opposed to a guide rail, which has a plurality of unit rails vertically connected to each other, and provided to a car guided by the guide rail, for detecting presence of a joint between each of the unit rails; and
a joint determining portion for determining presence/absence of the joint based on information from the joint detecting portion.
1 Assignment
0 Petitions
Accused Products
Abstract
In an elevator apparatus, a guide rail has a plurality of unit rails that are vertically connected to each other. A car is provided with a rail joint detecting device mounted on the car, for detecting the presence/absence of a joint between each of the unit rails. The rail joint detecting device has a joint detecting portion for optically detecting the presence of the joint; and a joint determining portion for determining the presence/absence of the joint based on information from the joint detecting portion. Information on the presence/absence of the joint is outputted from the joint determining portion to a car position correcting circuit. In the car position correcting circuit, information on the position of the car is corrected based on the information on the presence/absence of the joint.
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Citations
8 Claims
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1. An elevator rail joint detecting device characterized by comprising:
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a joint detecting portion opposed to a guide rail, which has a plurality of unit rails vertically connected to each other, and provided to a car guided by the guide rail, for detecting presence of a joint between each of the unit rails; and
a joint determining portion for determining presence/absence of the joint based on information from the joint detecting portion. - View Dependent Claims (2, 3, 4, 5, 7, 8)
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6. An elevator apparatus characterized by comprising:
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a guide rail having a plurality of unit rails that are vertically connected to each other;
a car guided by the guide rail;
a rail joint detecting device having;
a joint detecting portion opposed to the guide rail and provided to the car, for detecting presence of a joint between each of the unit rails; and
a joint determining portion for determining presence/absence of the joint based on information from the joint detecting portion;
a car position detecting portion for detecting a position of the car;
a car position correcting portion for correcting information on the position of the car from the car position detecting portion based on information from the joint determining portion; and
a control device for controlling operation of an elevator based on information on the position of the car from the car position correcting portion.
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Specification