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公开(公告)号：US20150292965A1
公开(公告)日：2015-10-15
申请号：US14441718
申请日：2012-11-12
Applicant: A&D COMPANY, LIMITED
Inventor： Isao Sato
CPC classification number: G01L1/2262 , G01G3/1402 , G01G23/005 , G01L1/2243
Abstract: [Problem] To increase basic performances of a load cell by forming nearly circular apertures at two positions of the load cell out of four thin sections, in all, of the load cell.[Means of Overcoming Problem] A load cell (10) includes a flexural element (12) in which a Roberval mechanism is formed by a pair of top and bottom parallel beams (14, 15) each including two thin sections (18) at a back and a front in a longitudinal direction, which are integrated with a fixed portion (16) and a movable portion (17), and strain gauges (20) bonded to the thin sections (18). Strain gauges (20) are bonded to one of the thin sections of pulling side (18a) and to one of the thin sections of compressing side (18b), and circular apertures are formed through the remaining two thin sections 18. The performances of the load cell such as the reduction of the measurement error and of the period of time before the start of the measurement are achieved.
Abstract translation: [问题]通过在负载传感器的四个薄部分中的两个位置处形成接近圆形的孔，来提高测力传感器的基本性能。 （克服问题的手段）称重传感器（10）包括弯曲元件（12），其中罗伯威机构由一对顶部和底部平行梁（14,15）形成，每个平行梁（14,15）包括两个薄部分（18） 与固定部分（16）和可移动部分（17）成一体的纵向方向的前部和连接到薄部分（18）的应变片（20）。 应变计（20）被接合到拉动侧（18a）的薄壁部分和压缩侧（18b）的薄壁部分之一，并且通过剩余的两个薄部分18形成圆形孔。 实现诸如测量误差的减小和测量开始之前的时间段的测力传感器。
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公开(公告)号：US09778120B2
公开(公告)日：2017-10-03
申请号：US14438384
申请日：2012-11-02
Applicant: A&D Company Limited
Inventor： Isao Sato
CPC classification number: G01L1/26 , G01L1/2206 , G01L1/2243
Abstract: A load cell includes a flexure element having a Roberval mechanism in which the respective ends of a pair of top and bottom parallel beams including a thin section are integrated in a fixed portion and in a movable portion, and a stopper for preventing an overload disposed between the pair of the top and bottom parallel beams by being fixed to the fixed portion. The front portion of the stopper is disposed in a concave portion for engaging the stopper formed on the inner side surface of the movable portion and extending in the width direction, and the front portion of the stopper of which a width is larger than the movable portion projects outwardly in the width direction of the movable portion.
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公开(公告)号：US20150285695A1
公开(公告)日：2015-10-08
申请号：US14438384
申请日：2012-11-02
Applicant: A&D Company, Limited
Inventor： Isao Sato
CPC classification number: G01L1/26 , G01L1/2206 , G01L1/2243
Abstract: A load cell includes a flexure element having a Roberval mechanism in which the respective ends of a pair of top and bottom parallel beams including a thin section are integrated in a fixed portion and in a movable portion, and a stopper for preventing an overload disposed between the pair of the top and bottom parallel beams by being fixed to the fixed portion. The front portion of the stopper is disposed in a concave portion for engaging the stopper formed on the inner side surface of the movable portion and extending in the width direction, and the front portion of the stopper of which a width is larger than the movable portion projects outwardly in the width direction of the movable portion.
Abstract translation: 测力传感器包括具有罗泊威尔机构的挠曲元件，其中包括薄部分的一对顶部和底部平行梁的相应端部集成在固定部分和可移动部分中，以及用于防止在 所述一对顶部和底部平行梁通过固定到固定部分。 止动件的前部设置在用于接合形成在可动部分的内侧表面上并在宽度方向上延伸的止动件的凹部中，并且止动件的前部部分的宽度大于可动部分 在可动部分的宽度方向上向外突出。
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公开(公告)号：US09897495B2
公开(公告)日：2018-02-20
申请号：US14441718
申请日：2012-11-12
Applicant: A&D Company, Limited
Inventor： Isao Sato
CPC classification number: G01L1/2262 , G01G3/1402 , G01G23/005 , G01L1/2243
Abstract: A load cell includes a flexural element in which a Roberval mechanism is formed by a pair of top and bottom parallel beams each including two thin sections at a back and a front in a longitudinal direction, which are integrated with a fixed portion and a movable portion, and strain gauges bonded to the thin sections. Strain gauges are bonded to one of the thin sections of pulling side and to one of the thin sections of compressing side, and circular apertures are formed through the remaining two thin sections. The performances of the load cell such as the reduction of the measurement error and of the period of time before the start of the measurement are achieved.
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