摘要:
Disclosed is a method for manufacturing an element for a CVT belt, comprising a body portion (22L, 22R) having right and left sides and a tapered portion with a downwardly reducing width, a neck portion extending upward from the body portion, and a head portion extending upward from the neck portion. The manufacturing method comprises a first punching step in which a metal strip blank (31) which has a uniform thickness and a width which makes it possible obtain elements arrayed on an even number of lines in an arrangement in which the head portions are opposed to each other or an arrangement in which the body portions are opposed to each other, is punched along an outline ((33L, 33R) of an excess material (21b) added to profiles of the left and right sides (21L, 21R) of the body portions, and along an outline (58L, 58R) of an excess material (32b) added to a profile of a lower side (32L, 32R) of the body portion; a plastic deformation step in which the blank is compressed in the thickness direction to form a predetermined projection and depression, and form the tapered portion while displacing the material in the outline directions; and a second punching step in which the element is obtained as a product by punching the blank.
摘要:
Disclosed is a method for manufacturing an element for a CVT belt, comprising a body portion (22L, 22R) having right and left sides and a tapered portion with a downwardly reducing width, a neck portion extending upward from the body portion, and a head portion extending upward from the neck portion. The manufacturing method comprises a first punching step in which a metal strip blank (31) which has a uniform thickness and a width which makes it possible obtain elements arrayed on an even number of lines in an arrangement in which the head portions are opposed to each other or an arrangement in which the body portions are opposed to each other, is punched along an outline ((33L, 33R) of an excess material (21b) added to profiles of the left and right sides (21L, 21R) of the body portions, and along an outline (58L, 58R) of an excess material (32b) added to a profile of a lower side (32L, 32R) of the body portion; a plastic deformation step in which the blank is compressed in the thickness direction to form a predetermined projection and depression, and form the tapered portion while displacing the material in the outline directions; and a second punching step in which the element is obtained as a product by punching the blank.
摘要:
A clock pulse generator includes an input terminal, an input bias setting circuit, first and second pulse shaping circuit and a pulse combining circuit. The input terminal receives a sinusoidal signal. The input bias setting circuit generates an addition sinusoidal signal having a predetermined bias voltage as a central voltage level thereof. The first and second shaping circuits are connected to the input bias setting circuit. The first shaping circuit has a first threshold voltage that is higher than the predetermined voltage and is responsive to the addition sinusoidal signal to generate a first pulse signal. The second shaping circuit has a second threshold voltage that is lower than the predetermined voltage and is responsive to the addition sinusoidal signal to generate a second pulse signal. The pulse combining circuit synchronizes either of the rising edge or the falling edge of the first pulse signal with that of the second pulse signal so as to generate an output clock pulse.
摘要:
Digital-to-analog (DA) conversion circuitry with a simplified testing circuit includes a DA converter to which test data, initially “0”, may be applied. The DA converter feeds an analog voltage corresponding to the test data to a voltage holding circuit. Subsequently the test data is incremented to “1” and then converted to a corresponding analog voltage by the DA converter. A comparator compares the analog voltage corresponding to the test data “1” with the previous analog voltage held in the voltage holding circuit and corresponding to the test data “0”. When the test data is sequentially incremented by 1 (one) at intervals, the voltage output from the DA converter is higher than the voltage held in the voltage holding circuit while the DA converter operates normally. The function of the DA converter can be easily, rapidly tested by monitoring the output of the comparator.