POSITIONER AND COMPOSITE CURL CORD

• US 20110108305A1
• Filed: 01/18/2011
• Published: 05/12/2011
• Est. Priority Date: 06/25/2004
• Status: Active Grant

• Current Assignee: Kabushiki Kaisha Yaskawa Denki
• Original Assignee: Kabushiki Kaisha Yaskawa Denki
• Inventors: Hara, Masaaki, Imanaka, Takayuki, NAKANO, Mitsuyoshi
• Granted Patent: US 8,878,061 B2
• Time in Patent Office: Days
• US Class Current: 174/69
• CPC Class Codes: B25J 19/0029 arranged within the different robot elements
• CPC Class Codes: H02G 11/00 Arrangements of electric cables or lines between relatively-movable parts

Abstract

In a positioner according to the present invention, the rotating table and a hollow shaft is rotated by a motor via a speed reduction gear. In such a configuration, an air tube and a cable which supplies the air or electric power used to operate a jib on the rotating table are provided via the rotary joint arranged at one end of the shaft. A communication device may be provided on the rotating table by detaching the rotary joint and arranging a composite curl cord. The communication device may be provided by the rotary joint and a wireless communication device without using the composite curl cord.

Claims

1. A composite curl cord comprising:

a movable cable for communication in which characteristic impedance thereof is stably held;

a cable for an IO signal and electric power which is bonded with the movable cable for communication such that core directions thereof are parallel to each other; and

an air tube banded which is bonded with the movable cable such that core directions thereof are parallel to each other,

wherein the composite curl cord is winded in a coil shape.

2. The composite curl cord according to claim 1, wherein a winding inside diameter of the composite curl cord is 2.5 times or less with respect to a largest sectional diameter among sectional diameters of the air tube, the cable for an IO signal and electric power, and the movable cable for communication.