摘要:
The present invention relates to a computer system which can store assembly information and component information for components to be automatically inserted by an insertion machine into a printed board, which can perform required operations based upon the information stored, and which can display and output results of the processings. In the present method, the system checks for possible mechanical interference, when inserting a component, between an insertion head and other components having the possibility to be inserted prior to the component prepares preceding relations of insertion order from the results of an interference checking, selects the components which cannot be inserted automatically according to the preceding relations of insertion order, and modifies insertion processes or insertion directions thereof, decides insertion order of the components according to the modified insertion processes or the insertion directions, and, at last, automatically prepares and outputs numerical control data relating to the automatic insertion of said components.
摘要:
In an exemplary embodiment, an internal combustion engine, in which a valve is opened and closed when a piston reciprocates in a cylinder, has a configuration to perform repeatedly the following combined strokes: an intake stroke→a compression stroke→a combustion stroke→an exhaust stroke in a four-cycle internal combustion engine are combined with an intake and compression stroke→a combustion and exhaust stroke in a two-cycle internal combustion engine. The internal combustion engine can reduce pumping loss in a six-cycle internal combustion engine and increase the output.
摘要:
A counter base for checkout includes a basket placing table on one side thereof to be freely raised and lowered. A driving unit can drive to raise and lower the basket placing table. A first detecting unit detects that a shopping cart enters an access area closer to the basket placing table than a predetermined range. A second detecting unit detects presence or absence of the shopping cart stopped along one side of the counter base. A control unit controls to drive, when the first detecting unit detects entrance of the shopping cart into the access area, the driving unit to move the basket placing table to a lowered position and, thereafter, controls to drive, when the second detecting unit does not detect the shopping cart stopped along the counter base, the driving unit to return the basket placing table to a raised position.
摘要:
An integrated circuit (“IC”) connector includes a card detection contact terminal which is provided substantially at a central part of a housing unit and between a first grounding contact terminal and a second grounding contact terminal, and first and second contact terminals located so as to face each other along a direction of mounting and demounting of a first IC card, the first contact terminals provided adjacent to and both sides of the card detection contact terminal, the second contact terminals provided adjacent to both sides of the card detection contact terminal.
摘要:
A counter base for checkout includes a basket placing table on one side thereof to be freely raised and lowered. A driving unit can drive to raise and lower the basket placing table. A first detecting unit detects that a shopping cart enters an access area closer to the basket placing table than a predetermined range. A second detecting unit detects presence or absence of the shopping cart stopped along one side of the counter base. A control unit controls to drive, when the first detecting unit detects entrance of the shopping cart into the access area, the driving unit to move the basket placing table to a lowered position and, thereafter, controls to drive, when the second detecting unit does not detect the shopping cart stopped along the counter base, the driving unit to return the basket placing table to a raised position.
摘要:
The principles described herein relate to methods for soldering electrode terminals, pins or lead-frames of commercial electric components for high temperature reliability. In one embodiment, prior to soldering the electric components, a pre-plated solder layer is removed from the lead frame or pins, and nickel and/or gold films are formed with electroless plating. The removal of the pre-plated solder layer avoids excess pre-plated Sn with high-Pb solder that lowers the melting point to between 180° C. and 220° C. and weakens solder joints. The nickel layer formed with an electroless plating acts as a barrier to the interdiffusion of tin from solder with copper of the lead frame material, which may otherwise occur at high temperatures. Interdiffusion forms an intermetallic compound layer of copper and tin and degrades solder joint strength. The novel soldering processes improve high temperature reliability of solder joints and extend electronics life-time.
摘要:
A card connector comprises: an ejection mechanism having an ejection member for ejecting a card; a locking piece displaceable vertically of the connector housing and adapted to fix the ejection member, when the card is loaded, to restrict the movement of the ejection member in the card ejection direction; and an releasing means for unlocking the locking piece in response to the card ejection operation.
摘要:
The objective of the invention is to provide an image reproduction device that can take digital data that has been subjected to analog conversion and reproduce digital data therefrom that is substantially the same as the original digital data, without using over-sampling or special hardware. An analog signal that was generated as a digital signal by an image generation device (200), but then subjected to analog conversion, and a synchronization signal from the image generation device (200) are input to an image reproduction device (100). A clock generation section (30) generates a sampling clock which has the same frequency as the dot clock used during the digital data generation, and with a suitably-adjusted phase, based on an input horizontal synchronization signal (12) together with frequency data (82) and phase data (84) as selected by a selection section (80). Digital data is reproduced from the input analog signal by an analog-digital converter (40), based on the thus generated sampling clock.
摘要:
A magnetic resonance imaging system includes a lower body which has a flat upper surface, and contains a first magnetic pole, an upper body which has a lower surface disposed in opposed relation to the upper surface of the lower body, and contains a second magnetic pole, a bed disposed adjacent to the lower body, and a pair of support posts which are provided respectively on right and left sides of the lower body, and interconnect the lower body and the upper body. A space, formed between the lower surface of the upper body and the upper surface of the lower body, is open at least toward the bed between the pair of right and left support posts.