摘要:
An automatic tape loading and unloading device for a magnetic tape recording and/or reproducing apparatus includes a cylindrical tape guide drum having at least one rotary magnetic head which moves in a circular path substantially coinciding with the circumferential surface of the drum. The tape used in the apparatus is stored on supply and take-up reels having the tape wound thereon in a tape holder such as a cassette or cartridge and in use the holder positions the tape supply at a relatively lower level with respect to the tape guide drum. The device further includes a first tape engaging member, for example, tape guide pins, carried by levers which are rotatable about a fixed pivot to draw the tape from the tape supply reel in a diagonally upward direction to the tape guide drum where it is helically wrapped about at least a portion of the circumferential surface of the drum and a second tape engaging member to draw the tape from the tape supply reel in a horizontal direction opposite to the direction of movement of the first tape engaging member.
摘要:
A stepping motor control unit is capable of driving a stepping motor fast through feedback control. Slits bored in a disk fixed to a rotor of a stepping motor are located at positions that precede magnetically stable positions of the rotor in a direction of rotation of the rotor. Light passing through the slits is detected by an optical sensor, and a signal t is output thereby. The signal t is delayed by a predetermined time according to the rotating speed of the rotor and then transmitted to a control unit. The control unit receives a position detection signal earlier according to the rotating speed of the rotor. Therefore, the wait time required for switching phases can be shortened. Moreover, when the signal t is generated twice or more during a signal t detection time during which a signal t indicating a certain phase is detected, the second and subsequent signals t are ignored. Thus, incorrect detection can be avoided.
摘要:
A vehicle, such as an under-bone type motorcycle, can guide a sufficient amount of running wind to a core section of a radiator (heat exchanger). The vehicle includes a head pipe, a main frame connected to the head pipe to extend downward and rearward, an engine disposed below the main frame, a leg shield covering a front side of a leg of a driver and having an opening in a forward area thereof, a radiator disposed within the opening of the leg shield which includes a core section through which running wind passes thus cooling the engine, and a wind guiding wall attached to the leg shield to guide the running wind to the radiator. The wind guiding wall includes a forward section that protrudes forward from a front end surface of the opening of the leg shield and a rear section that has a rear end positioned adjacent to a lateral side end of the core section of the radiator.
摘要:
A vehicle, such as an under-bone type motorcycle, can guide a sufficient amount of running wind to a core section of a radiator (heat exchanger). The vehicle includes a head pipe, a main frame connected to the head pipe to extend downward and rearward, an engine disposed below the main frame, a leg shield covering a front side of a leg of a driver and having an opening in a forward area thereof, a radiator disposed within the opening of the leg shield which includes a core section through which running wind passes thus cooling the engine, and a wind guiding wall attached to the leg shield to guide the running wind to the radiator. The wind guiding wall includes a forward section that protrudes forward from a front end surface of the opening of the leg shield and a rear section that has a rear end positioned adjacent to a lateral side end of the core section of the radiator.
摘要:
A wheeled vehicle includes wheels. A frame supports the wheels. First and second covers cover the wheels or the frame. The first cover includes first, second and third openings. The openings are preferably slots. The respective openings are arranged to form a triangle. The second cover includes first, second and third projections corresponding to the first, second and third openings of the first cover, respectively. The first, second and third projections are inserted into the associated first, second and third openings to couple the second cover with the first cover.
摘要:
A tightening apparatus for a dental implant includes a torque wrench and a slip detection device. The torque wrench includes a tightening part engageable with an abutment of the implant and a tightening torque detector for detecting tightening torques generated when the abutment is screwed to the fixture. The slip detection device includes a slip determiner and an indicator. The slip determiner samples an amount or rate of change of the torques detected by the torque detector in every predetermined period, to sequentially compare the amount or rate of change of the torques in a prior predetermined period with that in a subsequent predetermined period, and to determine whether or not the latter amount or rate is smaller than the former amount or rate. The indicator activates when the slip determiner determines that the latter amount or rate of change is smaller than the former amount or rate of change.
摘要:
A wheeled vehicle includes wheels. A frame supports the wheels. First and second covers cover the wheels or the frame. The first cover includes first, second and third openings. The openings are preferably slots. The respective openings are arranged to form a triangle. The second cover includes first, second and third projections corresponding to the first, second and third openings of the first cover, respectively. The first, second and third projections are inserted into the associated first, second and third openings to couple the second cover with the first cover.
摘要:
A printer comprising a cutting device for cutting the recording paper with a clean, straight edge is achieved. The printer comprises a pair of separable cutting blades, a fixed blade 14 and a movable blade 9, disposed with the cutting edges thereof mutually opposed in a substantially facing relationship on opposite sides of the paper exit 15 from which the recording paper is ejected. The movable blade 9 contacts fixed blade 14 at a point, and is driven with a scissors-like sliding action across fixed blade 14 by means of movable blade drive 10. Fixed blade 14 is supported on an openable cover frame 8 by support member 16 with a certain amount of play. Movable blade 9 is housed inside cutter unit frame 11. The cover frame supporting the fixed blade can be displaced between a cutting position wherein the fixed blade and the movable blade are disposed in an adjacent, substantially facing relationship and a non-cutting position wherein the fixed blade and movable blade are disposed at a distance from one another.
摘要:
A wheeled vehicle includes a seat. A frame supports at least the seat. The frame includes at least a first horizontal section extending substantially horizontally in front of the seat. At least first, second and third covers overlay the frame. The first horizontal section includes a reference position. The first and second covers abut against each other to form a flush surface and overlap with each other to cover the reference position. The first and second covers are attached together to the first horizontal section at the reference position. The third cover is attached to the first cover or the frame at a second location that is spaced apart from the reference position and is determined with less precision than the reference position.