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    • 1. 发明申请
    • Caster and whiteboard comprising caster
    • US20170232783A1
    • 2017-08-17
    • US15518532
    • 2015-10-07
    • Jun-Seok OH
    • Jun-Seok OH
    • B43L1/00B60B33/06
    • B43L1/00B60B33/02B60B33/06B60B33/063B60B2200/20B60B2900/112B60B2900/3312
    • Disclosed are: a caster mounted on a teaching aid including a whiteboard, or furniture, etc. so as to conveniently and stably convert between a movement state and a stopping state; and a whiteboard including the caster. The present invention relates to a caster comprising: a wheel which is coupled to the lower end of a fixing shaft having a male screw formed on the upper side thereof so that a nut is fastened; a wheel moving means which comprises a slide member and an eccentric rotation member, wherein the slide member has a shaft hole punched on the central part thereof so as to allow the fixing shaft of the wheel to be penetrated and fastened by the nut, and has a working shaft hole formed on the circumferential surface thereof, and the eccentric rotation member has an eccentric shaft formed at one side thereof and a shaft bolt formed protrudingly from the center part of the other side thereof, the eccentric shaft being fitted into the working shaft hole of the slide member; a main body which comprises a first operating space, a second operating space, a third operating space, and a female screw, wherein the first operating space is penetrated at the central part thereof in the vertical direction so that the slide member is fitted thereto and can move up and down, the second operating space enables the wheel to rotate and move up and down, the third operating space is penetrated in the horizontal direction so that an eccentric member is fitted thereto and the eccentric shaft can be introduced into the first operating space, and the female screw is formed on the upper part of the main body for the fastening purpose; a working lever which has a coupling hole punched on the central part thereof, the coupling hole being fitted into the shaft bolt of the eccentric rotation member; a fixing nut which is screw-coupled to the shaft bolt of the eccentric rotation member so as to fix the working lever; and a fixing means which comprises a first fixing part or a second fixing part so as to prevent the eccentric rotation member fitted into the third operating space of the main body from being detached and stop the rotation of the eccentric rotation member. The caster is mounted on a pedestal fixed to the lower end of a column frame on which the whiteboard is mounted.
    • 4. 发明授权
    • Leveling system
    • 调平系统
    • US06839937B2
    • 2005-01-11
    • US10255752
    • 2002-09-25
    • Joseph E. Miller
    • Joseph E. Miller
    • B60B33/06
    • B60B33/0007B60B33/0021B60B33/0042B60B33/0049B60B33/063Y10T16/193
    • A leveling system for a containment unit is disclosed. This leveling system includes at least one and typically multiple leveling elements, each of which are adjustably attached to a surface of the containment unit. An adjustment mechanism is in communication with the leveling elements for displacing the leveling element or elements in a substantially vertical direction. The leveling system also includes a level measurement mechanism attached to a surface of the containment unit for indicating a containment unit horizontal planar position or indicating when the containment unit is “level.” A containment unit is also disclosed.
    • 公开了一种用于容纳单元的调平系统。 该调平系统包括至少一个并且典型地多个调平元件,每个调平元件可调节地附接到容纳单元的表面。 调节机构与调平元件连通,用于使大致垂直方向上的调平元件移位。 流平系统还包括附着到容纳单元的表面的水平测量机构,用于指示容纳单元水平平面位置或指示何时该容纳单元是“水平”。 还公开了一种收容单元。
    • 5. 发明申请
    • Leveling system
    • 调平系统
    • US20040055107A1
    • 2004-03-25
    • US10255752
    • 2002-09-25
    • Bush Industries, Inc.
    • Joseph E. Miller
    • B60B033/06
    • B60B33/0007B60B33/0021B60B33/0042B60B33/0049B60B33/063Y10T16/193
    • A leveling system for a containment unit is disclosed. This leveling system includes at least one and typically multiple leveling elements, each of which are adjustably attached to a surface of the containment unit. An adjustment mechanism is in communication with the leveling elements for displacing the leveling element or elements in a substantially vertical direction. The leveling system also includes a level measurement mechanism attached to a surface of the containment unit for indicating a containment unit horizontal planar position or indicating when the containment unit is nulllevel.null A containment unit is also disclosed.
    • 公开了一种用于容纳单元的调平系统。 该调平系统包括至少一个并且典型地多个调平元件,每个调平元件可调节地附接到容纳单元的表面。 调节机构与调平元件连通,用于使大致垂直方向上的调平元件移位。 流平系统还包括附着到容纳单元的表面的水平测量机构,用于指示容纳单元水平平面位置或指示何时该容纳单元是“水平”。 还公开了一种收容单元。
    • 6. 发明授权
    • Pivotal roller mechanism
    • 枢轴机构
    • US06594856B1
    • 2003-07-22
    • US09683974
    • 2002-03-07
    • Hema Cherukuri
    • Hema Cherukuri
    • B60B3306
    • B60B33/0005B60B33/0015B60B33/0039B60B33/0049B60B33/0063B60B33/045B60B33/063Y10T16/193Y10T16/1937Y10T16/1943Y10T16/212
    • A fixed pivotal retractable roller mechanism 20 and method for statically supporting an item 46 upon a support surface 44 in an inoperative state and supporting the item 46 to roll along the support surface 44 in an operative state. The mechanism 20 includes a housing 22, a swingarm 26 pivotally engaged with the housing 22, a spring 36, and a roller 32. The swingarm 26 has pivotal movement relative to the housing 22, the swingarm 26 has an inoperative position state where the roller 32 is retracted allowing the housing 22 to rest on and statically contact the support surface 44 and an operative position state where the swingarm 26 is extended such that the housing 22 is not in contact with the support surface 44 allowing the item 46 to roll along the support surface 44. Other embodiments with castor and without a spring are also disclosed.
    • 固定的可旋转的可回缩辊机构20和用于在不工作状态下将物品46静态地支撑在支撑表面44上并且支撑物品46在操作状态下沿着支撑表面44滚动的方法。 机构20包括壳体22,与壳体22枢转地接合的摆臂26,弹簧36和辊32.摆臂26相对于壳体22具有枢转运动,摆臂26具有不工作位置状态,其中辊 32缩回允许壳体22搁置并且静止地接触支撑表面44以及摆臂26被延伸的操作位置状态,使得壳体22不与支撑表面44接触,从而允许物品46沿着 还公开了具有脚轮和没有弹簧的其它实施例。
    • 7. 发明申请
    • RETRACTABLE ROLLER MECHANISM
    • 可回收滚子机构
    • US20020170141A1
    • 2002-11-21
    • US09681684
    • 2001-05-21
    • Hema Cherukuri
    • A47H015/00B60B033/06
    • B60B33/0005B60B33/0018B60B33/0039B60B33/0049B60B33/0063B60B33/045B60B33/063Y10T16/1937Y10T16/209Y10T16/212Y10T16/364
    • An improved retractable roller mechanism 20 and method for statically supporting an item 42 upon a support surface 40 in an inoperative state and supporting the item 42 to roll along the support surface 40 in an operative state. The retractable roller mechanism 20 includes a housing 22, a roller frame 24 that is slideably engaged with the housing 22, a spring 30, and a roller 28. The roller frame 24 has reciprocative movement relative to the housing 22, such that the frame 24 has an inoperative position state where the frame 24 is retracted allowing the housing 22 to rest on and statically contact the support surface 40 and an operative position state where the frame 24 is extended such that the housing 22 is not in contact with the support surface 40 allowing the item 42 to roll along the support surface 40.
    • 一种改进的可缩回辊机构20和用于在处于非工作状态的支撑表面40上静态支撑物品42并且支撑物品42在操作状态下沿着支撑表面40滚动的方法。 可伸缩辊机构20包括壳体22,与壳体22可滑动地接合的辊框架24,弹簧30和辊28.辊框架24相对于壳体22具有往复运动,使得框架24 具有不工作位置状态,其中框架24缩回,允许壳体22搁置并静止地接触支撑表面40以及框架24延伸的操作位置状态,使得壳体22不与支撑表面40接触 允许物品42沿着支撑表面40滚动。