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    • 1. 发明授权
    • Circuit interrupter
    • 断路器
    • US4641001A
    • 1987-02-03
    • US723836
    • 1985-04-16
    • Hiroaki FujihisaHiroshi FujiiHirotoshi OhishiYoshiaki Kobayashi
    • Hiroaki FujihisaHiroshi FujiiHirotoshi OhishiYoshiaki Kobayashi
    • H01H71/52H01H3/00
    • H01H71/526
    • A circuit interrupter comprising a pair of separable contacts at least one of which is movable, and an operating mechanism operatively connected to the movable contacts for opening and closing the contacts. The operating mechanism includes a movable contact arm having mounted thereon the movable contact, a latch lever pivotally mounted on the movable contact arm, and a toggle link mechanism connected at its one end to an operating handle and the other end of which is directly engageable with said movable contact arm and the latch lever. The movable contact arm has a latch surface, and the latch lever has a latching end which, in cooperation with the latch surface, releasably catches the other end of the toggle link mechanism. The operating mechanism further comprises a yieldable member providing a yieldable stop surface for preventing the automatic return movement of the other end of the toggle link mechanism from an extended position after the trip operation to a reset position and for yieldably maintaining the other end of the toggle link mechanism at a position in which the toggle link mechanism is partly collapsed. The yieldable stop surface can be overcome by the manual moving effort on the operating handle.
    • 一种电路断续器,包括一对可分离触点,其中至少一个是可移动的,以及操作连接到可动触头的操作机构,用于打开和闭合触点。 操作机构包括可动接触臂,其上安装有可动触点,可枢转地安装在可动触头臂上的闩锁杆,以及一个肘节连杆机构,其一端连接在操作手柄上,另一端可直接与 所述可动接触臂和所述闩锁杆。 可动接触臂具有闩锁表面,并且闩锁杆具有闩锁端,闩锁端与闩锁表面协作地可释放地卡在肘节连杆机构的另一端。 操作机构还包括可屈服构件,其提供可屈服的止挡表面,用于防止肘节连杆机构的另一端从跳闸操作之后的延伸位置到复位位置的自动返回运动,并且用于可靠地保持肘节的另一端 在肘节机构部分地折叠的位置处的连杆机构。 可靠的止动表面可以通过操作手柄上的手动移动的努力来克服。
    • 3. 发明授权
    • Circuit interrupter
    • 断路器
    • US4628288A
    • 1986-12-09
    • US721895
    • 1985-04-11
    • Hiroaki FujihisaHirotoshi OhishiHiroshi FujiiYoshiaki Kobayashi
    • Hiroaki FujihisaHirotoshi OhishiHiroshi FujiiYoshiaki Kobayashi
    • H01H71/50H01H71/52H01H9/20
    • H01H71/501H01H71/526
    • A circuit interrupter comprising a pair of separable contacts at least one of which is movable, and an operating mechanism operatively connected to the movable contacts for opening and closing the contacts. The operating mechanism includes a movable contact arm having mounted thereon the movable contact, a latch lever pivotally mounted on the movable contact arm, and a toggle link mechanism connected at its one end to an operating handle and the other end of which is directly engageable with the movable contact arm and the latch lever. The movable contact arm has a latch surface, and the latch lever has a latching end which, in cooperation with the latch surface, releasably catches the other end of the toggle link mechanism. The movable contact arm further has formed thereon a stop surface for preventing the movement of the other end of the toggle link mechanism beyond the point at which the toggle link mechanism is partly collapsed when the contacts are welded to each other. A roller may be mounted on the other end of the second toggle link for quick and smooth operation of the operating mechanism.
    • 一种电路断续器,包括一对可分离触点,其中至少一个是可移动的,以及操作连接到可动触头的操作机构,用于打开和闭合触点。 操作机构包括可动接触臂,其上安装有可动触点,可枢转地安装在可动触头臂上的闩杆,以及一端连接到操作手柄的肘节连杆机构,另一端可直接与 可动接触臂和闩锁杆。 可动接触臂具有闩锁表面,并且闩锁杆具有闩锁端,闩锁端与闩锁表面协作地可释放地卡在肘节连杆机构的另一端。 可动接触臂还在其上形成有止动表面,用于防止肘节连杆机构的另一端移动超过当触头彼此焊接时肘节连杆机构部分塌陷的点。 辊可以安装在第二肘节连杆的另一端上,以便操作机构快速平稳地操作。
    • 4. 发明授权
    • Circuit interrupter
    • 断路器
    • US4743878A
    • 1988-05-10
    • US857092
    • 1986-04-29
    • Hirotoshi OhishiHiroshi FujiiHiroaki FujihisaYoshiaki KobayashiKiyoshi Matsuura
    • Hirotoshi OhishiHiroshi FujiiHiroaki FujihisaYoshiaki KobayashiKiyoshi Matsuura
    • H01H71/24H01H71/52H01H9/00
    • H01H71/526H01H71/2409H01H71/2418H01H71/2463
    • In a circuit interrupter having a base with a stationary contact, a toggle link mechanism including an operating handle supported by the base for manually operating the circuit interrupter and a link rotatably connected at one end to the operating handle; a movable member pivotally supported on the base and having a movable contact on one pivoting end portion; a latch lever pivotally supported on the base for latching the link so that the movable member and the link are normally connected to hold the movable member against the force of a biasing spring so that the contacts are in engagement, and an overcurrent trip means including a plunger actuated responsive to a large overcurrent to strike and pivot the latch lever so as to release the link from the movable member to move and separate the contacts, the improvement comprising a pivotal support for the latch lever and the movable member on the base, allowing both bodily movement and pivotal movement only of the movable member; the pivotal support including a pin fixed to the base extending through a circular hole in the latch lever and through a hole in the movable member which is elongated to allow bodily movement thereof without separating the contacts, and pivotal movement thereof separating the contacts by the biasing spring after a delay determined by the length of the elongated hole upon pivotal movement of the latch lever by the plunger striking the latch lever responsive to large overcurrent, releasing the link from the movable member, whereby any impact force due to the plunger striking the latch lever is transmitted to the base through the pin.
    • 在具有固定触点的基座的断路器中,肘节连杆机构包括由基座支撑的用于手动操作断路器的操作手柄和在一端可旋转地连接到操作手柄的连杆; 枢转地支撑在所述基座上并且在一个枢转端部上具有可动触头的可动构件; 枢转地支撑在基座上的闩锁杆,用于锁定连杆,使得可移动部件和连杆正常连接,以抵抗偏置弹簧的力保持可动件,使得触头接合;以及过电流跳闸装置,包括 柱塞致动响应于大的过电流以撞击和枢转闩锁杆,以便从可动构件释放连杆以移动和分离触点,改进包括用于闩锁杆和底座上的可动构件的枢轴支撑,允许 只有可动构件的身体运动和枢转运动; 所述枢转支撑件包括固定到所述基部的销,所述销延伸穿过所述闩锁杆中的圆形孔并且穿过所述可移动部件中的孔,所述孔被伸长以允许其身体运动而不分离所述触点,以及通过所述偏置 弹簧经过延长确定的延迟,在长杆孔的长度上,当闩锁杆通过柱塞撞击锁定杆而响应于大的过电流而枢转运动时,将弹簧从可动件释放,由此引起的冲击力 杠杆通过销传递到底座。
    • 8. 发明授权
    • Carrier and two-component developer composed of the carrier
    • 载体和双组分显影剂由载体组成
    • US08148041B2
    • 2012-04-03
    • US13012127
    • 2011-01-24
    • Makoto KobayashiYoshiaki KobayashiYoshiyasu Matsumoto
    • Makoto KobayashiYoshiaki KobayashiYoshiyasu Matsumoto
    • G03G9/107
    • G03G9/107G03G9/1075G03G9/113G03G9/1131G03G9/1133
    • An objective is to provide a carrier exhibiting stable charge providing ability in which sufficient charge can be provided to toner having a small particle diameter, and no image contamination such as fog caused by toner scattering via lack of electrification is generated. Another objective is to provide a carrier capable of maintaining a charging level of no interference for image formation even under the image forming condition at which a charging level for printing a number of prints continuously is difficult to be maintained. Disclosed is a carrier comprising a core particle made of ferrite possessing Mg and coated thereon, a resin, wherein the core particle has a ratio of the number of irregular-shaped core particles of at most 5%, based on the total number of core particles, and a surface of the core particle has grains having a maximum grain diameter of 2-5 μm.
    • 目的是提供一种具有稳定的电荷提供能力的载体,其中可以向具有小粒径的调色剂提供足够的电荷,并且不会产生由于通过不起电而由调色剂飞散引起的图像污染。 另一个目标是提供一种即使在连续打印多个打印件的打印水平难以维持的图像形成条件下,也能够保持对图像形成无干扰的充电水平的载体。 公开了一种载体,其包含由具有Mg并且涂覆在其上的铁氧体制成的核心颗粒,树脂,其中核心颗粒具有至多5%的不规则核心颗粒的数量的比率,基于芯颗粒的总数 ,核粒子的表面具有最大粒径为2-5μm的粒子。