摘要:
This invention relates to an electron tube which stabilizes the orbits of electrons accelerated and focused by an electron lens and has a structure for effectively suppressing noise generated due to discharge. This electron tube has, at two ends of an insulating container, a cathode electrode and an anode electrode which constitute the electron lens. Particularly, in the electron tube, one end of the cathode electrode and a photocathode are supported by a conductive member arranged at one end of the insulating container, and the cathode electrode is electrically connected to the photocathode. The cathode electrode partially extends to a stem along the inner wall of the insulating container and is tapered toward the stem so that the distal end portion of the cathode electrode is separated from the inner wall of the insulating container. Therefore, the electron tube realizes, regardless of the size of the insulating container, a structure for preventing the insulating container from being charged and suppressing discharge followed by light emission between the cathode electrode and the insulating container.
摘要:
A liquid scintillation counter 10 serving as an optical measurement apparatus includes: an HPD 24, a charge amplifier 26, a voltage amplifier 28, a comparator 30, a counter 32, a multi-channel analyzer 34, a display 38, and the like. The HPD 24 has a photocathode 24a and an APD 24b for outputting a signal that corresponds to the number of incident photons. The comparator 30 outputs a logic pulse signal, serving as a comparison result signal, only when the signal outputted from the HPD 24 and amplified by the charge amplifier 26 and voltage amplifier 28 is larger than a prescribed threshold value. This threshold value is set larger than an output signal that is outputted when a single photoelectron is emitted from the photocathode 24a and smaller than another output signal that is outputted when two or more photoelectrons are emitted.
摘要:
An optical measurement apparatus 10 primarily includes: a photon detection unit 12 for detecting incident photons, a time signal output unit 14 for outputting a time signal, and a storage unit 16 for storing the time signal outputted from the time signal output unit 14 when the photon detection unit 12 detects photons. The photon detection unit 12 includes a HPD 24 having a photocathode 24a and an APD 24b, a TZ amplifier 26, a peak holding circuit 28, and an A/D converter 30. The time signal output unit 14 includes a timer 32 and a counter 34. The storage unit 16 includes a comparator 36 and a memory 38. When photons impinge on the HPD 24, a trigger signal is outputted from the comparator 36, causing the photon-number outputted from the A/D converter 30 and the time data outputted from the counter 34 to be stored in the memory 38.
摘要:
A seat belt buckle for receiving a tongue connected to a seat belt webbing. The buckle includes a first ejector spring in a position out of an area α of the path of movement of an engagement portion of the tongue and an imaginary extended area β extended from the area α in the direction of movement of the engagement portion, and on the outer side of a base. A second ejector spring is provided in a position out of at least one of the area α and the imaginary extended area β, and on the outer side of the base 8. A bracket for fixing the buckle to the vehicle body can be provided closer to a tongue insertion hole, thereby reducing the length of the buckle in the tongue insertion direction.
摘要:
When forming a dowel section by performing press working on each of portions constituting side walls of a buckle base member, a die having a negative clearance with a punch portion (2) is used whose length or diameter is larger than a length or diameter of a die portion (3). The dowel section is required as a guide for a tongue inserted into a buckle and as a load receiver when a latch member is elongated at a time of collision etc. When a ratio C/t of a clearance C between the punch portion and the die portion with respect to a plate thickness t of the buckle base member is set within a range of −(30 to 5) %, no crack is generated in the root of the dowel section, and the dowel section of a shear cross-section length ≧0.25×t, a shear cross-section starting height ≧0.7×t, and a height of (0.70 to 0.95)×t is easily obtained, and the perpenducularity of the dowel section side surface is enhanced.
摘要翻译:通过在构成带扣基部构件的侧壁的各部分上进行冲压加工来形成定位销部分时,使用具有与冲头部分(2)的间隙为负的模具,其长度或直径大于其长度或直径 模具部分(3)。 当锁定件在碰撞时被拉长时,需要将销钉部分作为插入带扣的舌头的引导件以及作为负载接收器。当冲头部分和模具之间的间隙C的比C / t 相对于带扣基部件的板厚度t的部分设定在 - (30〜5)%的范围内,在榫钉部的根部中不产生裂纹,并且剪切截面长度的榫钉部 ≧0.25×t,剪切截面起始高度≥0.7×t,高度(0.70〜0.95)×t,并且提高了榫钉部侧面的绝缘性。
摘要:
A buckle that is compact in a longitudinal direction and uses an unlatching force that may be effectively applied to a latch member when releasing a tongue from a buckle. The buckle is configured so that as an operation button is manipulated in the unlatching direction from a state in which a tongue and a latching portion of a latch member are latched, the slider moves so that the inclined face of a pressed portion of the slider comes in contact with the inclined face of a pressing portion of an ejector and presses the ejector. Then, the ejector is spaced from the tongue and the biasing force of an ejector spring is effectively applied to the latch member via the ejector and the slider in the unlatching direction. An unlatching force is thereby applied to the latch member so that the latch member pivots in the unlatching direction, causing release of the tongue.
摘要:
A buckle that is compact in a longitudinal direction and uses an unlatching force that may be effectively applied to a latch member when releasing a tongue from a buckle. The buckle is configured so that as an operation button is manipulated in the unlatching direction from a state in which a tongue and a latching portion of a latch member are latched, the slider moves so that the inclined face of a pressed portion of the slider comes in contact with the inclined face of a pressing portion of an ejector and presses the ejector. Then, the ejector is spaced from the tongue and the biasing force of an ejector spring is effectively applied to the latch member via the ejector and the slider in the unlatching direction. An unlatching force is thereby applied to the latch member so that the latch member pivots in the unlatching direction, causing release of the tongue.
摘要:
A shock-proof device disposed in a buckle includes at least a latch member for engaging a tongue so as to latch the tongue; a release button for releasing the tongue from the latch member; and an inertia lever with a rotation shaft rotatably arranged for preventing the release button from moving at least in a release direction of the release button by abutting against the release button. The shock-proof device further includes torque-difference generating mechanism for generating a torque difference between a first torque and a second torque. The first torque is applied to the inertia lever when the inertial force is applied to the release button and the inertia lever in the release direction of the release button. The second torque is applied to the inertia lever when the inertial force is applied to the release button and the inertia lever in the non-release direction of the release button.
摘要:
In a buckle of the present invention, inertia force F.sub.1 acts in a direction opposite to a direction toward a disengaging position of a main body 4d of a lock member when the buckle is pulled by a pretensioner. Clockwise torque T.sub.1 is developed on a lever 12b and counter-clockwise torque T.sub.2 is developed on a mass body 12c. Since the torque T.sub.2 of the mass body 12c is larger generally, the lever 12b and the mass body 12c rotate together in the counter-clockwise direction so that the lever is set in the restricting position. At the bottoming of the pulling action of the buckle, the inertia force F.sub.2 acts in a direction toward the disengaging position of the main body 4d. Therefore, the mass body 12c rotates in the clockwise direction and the lever 12b is held in the restricting position so that the movement of the lock member in the direction toward the disengaging position of the main body 4d is prevented. As a result of this, unexpected disengagement between the buckle and the tongue is prevented even with extreme acceleration, the operational feeling of an operational button is improved, interchangeability is provided to the operational button, and the assembly condition of components such as the operational button is improved.
摘要:
A method for melting and reducing chrome ore, which comprises charging chrome ore and carbonaceous material, and blowing in oxygen gas under a pressure ranging from 1 to 600 Torr, while molten metal is being stirred by a stirring gas blown in. In this method, a reaction vessel capable of allowing top blowing and bottom blowing onto the molten metal and decreasing pressure within the vessel is employed. Chrome ore and carbonaceous material can be used in the form of lumps or powder. When powdered ore and material are used, they can be injected through a lance or a tuyere into the vessel.