摘要:
A feed line connecting circuit for selectively connecting first, second and third feed line connecting terminals under a predetermined current feeding condition comprises a first current detector connected between one of the first and second feed line connecting terminals and a central node for detecting a current over a predetermined value; a first switch connected between the one of the first and second feed line connecting terminals and the central node for connecting said one of the first and second feed line connecting terminals to the central node under an unpowered condition; a selective switch controlled by the first current detector, the selective switch having first and second contacts and a common contact connected to the third feed line connecting terminal, the common contact being connected to the first selective contact when the first current detector does not detect a current over the predetermined value, and to the second selective contact when the first current detector detects a current over the predetermined value; and a second current detector connected between the first selective contact of the selective switch and the central node to change the first switch so as to disconnect said one of the first and second feed line connecting terminals from the central node when detecting a current above the predetermined value.
摘要:
Improved insulation piercing wire connectors are proposed which are provided with a plurality of prongs on the edges of a wire barrel, said prongs having their top tapering up toward the front for better mechanical and electrical connection.
摘要:
In the present invention, by selecting an optimum combination of plating layer materials or materials, not only the manufacturing cost of motor brush is reduced but also a plating layer having excellent characteristics is formed in a narrow width on the surface of brush base material so as to have a predetermined thickness. The present invention is formed by a brush sliding portion that slides on a motor commutator and a plate-shaped brush base material that is slender as a whole and supports the brush sliding portion. This brush sliding portion is formed by Pd plating portion formed over a predetermined length on a part in the lengthwise direction of the brush base material that supports the brush sliding portion. This Pd plating is applied on the brush base material via backing Ni plating.
摘要:
An operation switch is arranged in a manner that switch knobs 1 and 2 each for selecting one of related plural functions is provided, and a display portion for displaying the one of related plural functions selected by the corresponding switch knob is provided for each of the switch knobs 1 and 2. Thus, when the switch knob 1 or 2 is operated, the desired function relating to the switch knob 1 or 2 thus operated can be selected among the plural functions for adjusting the blowing direction and an air flow rate and also the selected function can be displayed at the switch knob 1 or 2 thus operated.
摘要:
When a trouble occurs in a cable, a feeding pass for another cable is ensured. In a feeding pass switching circuit, optical fibers are respectively connected to the terminals A, B and C. When a negative current is applied to the system in a state where a BRANCH2 is put in an open circuit and a TRUNK is grounded, a relay K1 is activated, and then a relay K2 is activated. Successively, when a positive current is supplied from the TRUNK, a cable connected to the TRUNK and a BRANCH1 is fed from both terminals. When the positive current is supplied from the BRANCH1 in a state where the TRUNK is put in a open circuit and the BRANCH2 is grounded, a relay K3 is activated. Successively, when the negative current is supplied to the BRANCH2, a relay K5 is activated. In such a manner, the power is fed to each feeding pass from one terminal.
摘要:
The object of the present invention is to provide a thermoplastic polyurethane tape having excellent elastic functions, and the polyurethane tape of the present invention is a thermoplastic polyurethane tape with the residual strain after 300% stretching at 20° C. being from 5 to 40%, wherein the recovery percentage after repeating a 300% stretching/recovery cycle at −10° C. three times is preferably 85% or more.
摘要:
A recess portion 14a is formed in the underside of the flange 14 of a tilting holder 13 at a position corresponding to, for example, an "upper right" select switch 4. As a result, the operating pin 10 of the "upper right" select switch 4 has a fixed gap with the flange 14. Consequently, the operating pin 10 of the "upper right" select switch is pressed when an operating lever 15 is tilted. However, the operating range B of, for example, the "upper right" select switch 4 is set narrower than the operating range A of, for example, the "upper" select switch 4 since the pressing of the operating pin 10 of, for example, the "upper right" select switch 4 is delayed by the gap resulting from the recess portion 14a.
摘要:
A multi-directional switch (1) comprises a joy stick (6) which is inclined for selective operation of a plurality of switch portions. The joy stick (6) includes a support portion (6a) supported pivotally about the bottom end thereof; a slidable contact spherical portion (6b) bulging from the top end of the support portion (6a) and having a spherical surface (6e) slidably abutting throughout the circumference thereof against the inner peripheral surface of a through hole (5a) when pivoted; and an operating portion (6c) projecting through the through hole (5a) adjacent the spherical surface (6e). The outer periphery of a flat surface (6d) of the slidable contact spherical portion (6b) of the joy stick (6) is supported at four circumferentially spaced positions so that the joy stick (6) is returned to a neutral position by the elastic restoring force of the switch portions. A joy stick support structure for the multi-directional switch (1) requires neither a particularly part for returning the joy stick (6) to the neutral position nor a securely determined fulcrum.
摘要:
The object of the present invention is to provide a polyurethane film having heat adhesion and further having high stress retention and excellent elastic functions, and the polyurethane film of the present invention is a heat adherent polyurethane film wherein the thermal adhesion peeling stress indicated by a maximum stress when separating a film from a cotton fabric after hot-pressing the film to the cotton fabric at a temperature of 130° C. under a pressure of 4 bar for 25 seconds is 5.88 N/cm or more and the stress retention at an elongation percentage of 200% indicated by a ratio of a stress (fR) in recovery to a stress (fS) in stretching at an elongation percentage of 200% in an S-S curve drawn when the film is stretched to an elongation percentage of 300% and then recovered is 40% or more.
摘要:
There is provided a wireless measuring apparatus that efficiently measures the frequency characteristics of a sensor unit mounted on an object to be measured. The wireless measuring apparatus is a wireless measuring apparatus that measures the frequency characteristics of a sensor unit (10) mounted on an object (40) to be measured, including the sensor unit (10) having a piezo-resonator (11), an antenna (20) that forms a circuitry with the sensor unit (10), and a measuring element (30) that supplies high frequency electricity changed in different frequency to the circuitry and measures the frequency characteristics of the reflected electricity strength received from the circuitry.