摘要:
A tensioner assembly includes a pulley arm pivotable about a pivot shaft, and a tension pulley mounted on the pulley arm at its end remote from the pivot shaft and pressed against a belt to keep the tension of the belt. The tension pulley is rotatably mounted around a base portion of the pulley arm through a rolling bearing with the inner surface and axial rear end surface of the bearing inner race in contact with the outer peripheral surface of the base portion and an end surface of a shoulder of the base portion, respectively. The base portion has an axial through hole formed with an internal thread on its inner surface. A support bolt is threaded into the through hole from the axial front end to press the rolling bearing against the end surface of the shoulder. The internal thread has an axial front end located in the vicinity of, or axially rearwardly of, the end surface of the shoulder.
摘要:
In a multi-blade centrifugal fan in which an impeller is provided in a scroll casing in a freely rotatable manner, the scroll casing is provided with an axially expanded portion that forms an air channel at a bottom surface thereof which is expanded in a rotation-axis direction at a radially outer side of an annular flange portion which supports the impeller; and is provided, in a region of an outlet between a tongue portion and a spiral-end portion of the scroll casing in the axially expanded portion, with a protrusion that protrudes radially outward from a radially inner side surface by a predetermined amount so as to directly face an airflow in a circumferential direction.
摘要:
A mobile station transmits to a base station a plurality of pre-coding indicators using respective feedback schemes of a plurality of kinds of feedback schemes that can be set simultaneously by the base station. The mobile station receives from the base station a downlink signal on which pre-coders corresponding to one of the transmitted pre-coding indicators have been applied, and a pre-coder confirmation representing whether the corresponding pre-coders have been applied. The pre-coders represented by the pre-coder confirmation are associated with one of the plural feedback schemes.
摘要:
An adapter for controlling a first camera and a second camera, which exhibit differing operating characteristics, in a three-dimension (3D) camera imaging system. The adapter provides a camera control signal to the first camera to control operation of the first camera. The adapter converts the camera control signal to a second camera control signal utilizing information from the first and the second cameras indicative of imaging states of the cameras, and provides the second camera control signal to the second camera to control operation of the second camera. The conversion compensates for the differing operating characteristics of the first and second cameras.
摘要:
A solder resist and a central pad to which a central Au bump provided on a semiconductor chip is flip-chip bonded are formed on a substrate main body. In a flip-chip mounting substrate where an underfill resin is provided after the semiconductor chip is mounted, a central opening portion for exposing the central pad is formed in the solder resist, and also, an edge portion forming the central opening portion of the solder resist is partially overlapped with the outer peripheral portion of the central pad.
摘要:
A chain tensioner includes a cylinder having a closed end, an internally threaded plunger axially slidable in the cylinder, a return spring biasing the plunger in the protruding direction from the cylinder, and a screw rod having an external thread in threaded engagement with the internal thread of the plunger. The portion of the screw rod protruding from the plunger abuts a rod seat provided in the cylinder. The screw rod has a rolled external thread and an intermediate portion protruding from the plunger and having an outer diameter smaller than the diameter of the root of the external thread. The screw rod has a forged contact surface, to be contacted with the rod seat, on the axial end face of the intermediate portion. The internal thread may be formed by pressing, and a pressed recess, corresponding to the internal thread, may be formed on the plunger's outer circumference.
摘要:
A chain tensioner includes a cylindrical cylinder having an open end and a bottom, a cylindrical plunger axially slidably inserted in the cylinder and having a bottom and an open end located in the cylinder, a screw rod mounted in the cylinder and having an external thread on an outer periphery thereof, wherein the plunger has a protrusion on an inner periphery thereof which is in threaded engagement with the external thread of the screw rod, and wherein the external thread has a pressure flank for receiving pressure when a force is applied that tends to push the plunger into the cylinder, and a clearance flank, the pressure flank having a larger flank angle than the clearance flank, whereby the external thread is serration-shaped, and a return spring mounted between the plunger and the screw rod and biasing the plunger in a direction to protrude from the cylinder, thereby pressing a chain with the plunger, wherein the protrusion extends only a limited arcuate range of the inner periphery of the plunger.
摘要:
A wiring substrate of the present invention includes such a structure that a plurality of connection pads and leading wiring portions connected to the plurality of connection pads respectively are arranged to an insulating layer of a surface layer side, and the leading wiring portions are arranged to be bended from the connection pads, and a solder layer to protrude upward is provided on the connection pads respectively. A solder on the leading wiring portions moves to the bend portion side, and thus the solder layer to protrude upward is formed on the connection pads.
摘要:
A chain tensioner includes a plunger axially slidable in a cylinder to define a pressure chamber, filled with hydraulic oil, whose volume is variable upon axial plunger movement. A restricted passage defined between the plunger and the cylinder communicates the chamber with outside. A spring biases the plunger to increase the pressure chamber volume. An oil supply passage supplies oil to the pressure chamber and a check valve allows only oil flow into the pressure chamber, and includes an annular valve seat, a check ball movable into and out of contact with the valve seat, and a check ball retainer formed by drawing. The retainer includes a tubular portion with a bottom at one end. The tubular portion has an opening, formed by punching outwardly, through which oil can flow in and out. The opening extends to a border between the tubular portion and the bottom of the retainer.
摘要:
In the case that periodical transmission of transmission signal number-of-sequence quality indicative signal cannot be performed, the number of transmission signal sequences is clarified in association with reception quality information that is generated immediately after the case, and the base station apparatus performs appropriate communication resource allocation. A mobile station apparatus has a feedback information control section 65 that generates feedback information including reception quality information, transmission signal preprocessing information and transmission signal number-of-sequence information, and a radio transmission section 51 that periodically transmits the generated feedback information to the base station apparatus, where when the radio transmission section 51 does not transmit the transmission signal number-of-sequence information with communication resources periodically allocated from the base station apparatus so as to transmit the transmission signal number-of-sequence information, the radio transmission section 51 transmits the transmission signal number-of-sequence information to the base station apparatus with communication resources enabling transmission of the feedback information allocated from the base station apparatus subsequently to the communication resources.