Title:
OPENING CLOSING FREQUENCY COUNTER DEVICE IN ARCHITECTURAL MOTOR-DRIVEN SHUTTER
Document Type and Number:
Japanese Patent JP3803838
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce equipment cost, and measure an accurate opening-closing frequency by connecting a control part and an operation switch part of a motor- driven shutter to each other by a versatile four-core cord, and connecting a counter circuit part in parallel to an opening switch.
SOLUTION: A control part 12 and an operation switch part of a motor- driven shutter are connected to each other by a wiring cord L of a highly versatile A, B, C, D four-core structure. A counter circuit part 14 of a counter device to measure and display an opening-closing frequency is connected in parallel to an opening switch PBU through a resistance means so that a feeble electric current flows when an operation switch is turned on and an electric current is not carried in a starting condition of a relay switch to supply a power source to a switch. The opening-closing frequency is displayed on a liquid crystal display unit arranged in a switch box on which a cover body having a key is arranged, and is used as a standard for a maintenance period. Since the counter device is housed in the switch box by using the wiring cord L of the four-core structure, workability is improved, and a cost is reduced, and the possibility of mischief and damage can be reduced.
Inventors:
Keisuke Kishimoto
Application Number:
JP5850097A
Publication Date:
August 02, 2006
Filing Date:
February 26, 1997
Export Citation:
Assignee:
Sanwa Shutter Corporation
International Classes:
E06B9/56; E06B9/68; G07C3/14; (IPC1-7): E06B9/56; E06B9/68; G07C3/14
Domestic Patent References:
| JP4110898U | ||||
| JP7004163A | ||||
| JP62225686A | ||||
| JP8060958A | ||||
| JP9161036A |
Attorney, Agent or Firm:
Tetsuo Hirose