摘要:
A valve operating device for the intake or exhaust valves of an internal combustion engine wherein a plurality of cam followers are disposed adjacent to each other for operation by different cams in mutually different modes dependent on the speed of rotation of a camshaft. A selective coupling mechanism disposed in and between the cam followers has switching pins movable between a connecting position in which the cam followers are interconnected and a disconnecting position in which the cam followers are disconnected. An oil passage is provided in one or more of the cam followers and the switching pin therein is arranged to control the rate of flow of oil through the oil passage defined in that cam follower in response to movement of the switching pin between the connecting and disconnecting positions. The oil supplied through the oil passage is used for lubricating the cam and cam following sliding surfaces in one embodiment and for operating hydraulic valve lash adjusters in another embodiment.
摘要:
A mobile telephone is provided that includes a plurality of circuit blocks and adapted to cut off the supply of power source voltage to any one of the circuit blocks. The mobile telephone also includes an interblock interface circuit provided on a signal path between an elected circuit block and a branch point at which the signal path branches into different branch paths so as to connect to other circuit blocks. The interblock interface circuit includes a signal gate for preventing signal transmission from the elected circuit block to the other circuit blocks, and includes a storage unit for storing a signal right before the power cut-off.
摘要:
By adding perspective information in addition to binocular parallax, the invention provides a three-dimensional medical imaging apparatus that allows surgery to be performed with a more natural three-dimensional view, similar to that achieved with the naked eye. The three-dimensional medical imaging apparatus includes an image-acquisition optical system and an imaging device for acquiring three-dimensional images of a subject. The image-acquisition optical system includes an objective optical system for forming an image of the subject at an image-forming plane, and an entrance pupil position of the image-acquisition optical system is disposed between the objective optical system and the subject.
摘要:
A card forming sheet includes an opaque printing sheet and a transparent film placed over the printing sheet, so that the transparent film can be peeled away from the printing sheet and cannot be re-bonded to the printing sheet. Moreover, the card forming sheet includes a transparent adhesive and a peeling sheet placed over the adhesive layer. The printing sheet is divided into a substantially rectangular address describing part, an information describing part adjacent to one side of the address describing part, and a concealing part adjacent to another side of the address describing part. The card forming sheet is folded along a boundary between the address describing part and the information describing part. The two sides are bonded together so that the printing sheet is placed to the outside, and the card forming sheet is then folded along a boundary between the concealing part and the address describing part and bonded together, removably concealing the information.
摘要:
A vehicle fuel supply device including a saddle-shaped fuel tank comprised of a main chamber and an auxiliary chamber. A reservoir is disposed within the main chamber. A main pump is provided within the reservoir. A sub-pump is detachably provided within the reservoir. The fuel in the reservoir is drawn up by an operation of the main pump to supply fuel to an engine. A portion of the drawn-up fuel is utilized to generate a negative pressure, the negative pressure is utilized to transfer the fuel in the auxiliary chamber to the reservoir, and the negative pressure is utilized to introduce the fuel in the main chamber into the reservoir.
摘要:
A semiconductor integrated circuit is provided including a plurality of circuit blocks and adapted to cut off the supply of power source voltage to any one of the circuit blocks. The integrated circuit includes an interblock interface circuit provided on a signal path from the elected circuit block to other circuit blocks, wherein a single output of the interblock interface circuit is branched out to other circuit blocks. The interblock interface circuit includes a signal gate for preventing signal transmission to other circuit blocks and includes a storage unit for storing a signal right before the power cut.
摘要:
An endoscope is connected optically removably to a TV camera through an adapter. A plurality of fixing pins is arranged on both sides of an insertion axis of an insertion part of the endoscope. A fixing unit to fix the endoscope removably is provided at the front end of an arm unit of an endoscope holder which supports the endoscope movably. The fixing unit has a claw and a movable claw, and grips the fixing pins of the endoscope releasably between the claw and the movable claw.
摘要:
A semiconductor integrated circuit device is provided, the circuit being capable of arranging a control signal system, avoiding a danger of failure to check an indefinite signal propagation prevention circuit or the like, further facilitating a check oriented to mounting on an automated tool, and facilitating power shutdown control inside of a chip. In the semiconductor integrated circuit device, power shutdown priorities are provided by independent power domains Area A to Area I. A rule is provided, the rule defining that, in the case where a circuit having a high priority is turned ON, a power domain having its lower priority cannot be turned OFF, thereby facilitating a designing method. In addition, areas capable of applying still another power supply are provided in the independent power areas Area A to Area I. In that area, a relay buffer (repeater) and a clock buffer or an information retaining latch for saving information are integrated. A layout may be provided in a direction vertical to a direction in which cells are arranged in a row direction for the purpose of dispersing a current of a light supply line.
摘要:
For the purpose of preventing generation of burning or disconnection of an inrush current preventing resistor (3) when making and breaking of an AC power supply are frequently repeated, energy to be charged to a smoothing capacitor (4) at the time of making the power supply is calculated from the capacitance of the smoothing capacitor (4) of a capacitor-input type rectifying circuit and value of a rectifying smoothing DC voltage, and a mean power is calculated from the energy and the number of times of power making and breaking within a predetermined period of time. If the mean power exceeds an allowable power of the inrush current preventing resistor (3) for preventing an inrush current at the time of making the power supply, warning by an alarm display or an alarm output and power non-making interlock are carried out, and driving of a load-side device is stopped. In the case where the capacitance of the smoothing capacitor (4) and the value of the rectifying smoothing DC voltage are known in advance, the number of power on/off times within a predetermined period of time is counted. If the number of times exceeds a predetermined number, warning by an alarm display or an alarm output and power non-making interlock are carried out, and driving of the load-side device is stopped.
摘要:
A noncontacting power transfer apparatus, a noncontacting signal transfer apparatus, and a separate machine apparatus that uses these couplers are disclosed. The power coupler is composed of a primary side and a secondary side that are fixed to a static unit and rotatable unit of the machine apparatus, respectively, such that its output does not vary with arbitrary rotation by the rotatable unit. The signal coupler is composed of receiving side portion having a electric-to-light conversion device that converts an electric signal to an optical signal of rotational symmetry relative to the axis of rotation of the rotatable unit and a photoelectric conversion device that converts an optical signal to an electric signal. Accordingly, the rotatable unit can be supplied with power from the static unit even while rotating, and moreover, can communicate with the static unit. Further, the rotatable unit can be easily attached to the static unit and can be removed from the static unit.