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公开(公告)号：US11892342B2
公开(公告)日：2024-02-06
申请号：US16955849
申请日：2018-12-14
申请人： Mettler-Toledo GmbH
IPC分类号： G01G7/02 , B33Y10/00 , B33Y70/00 , B33Y80/00 , B23K26/34 , B23K26/70 , G01G21/24 , G01G3/14 , G01L1/26 , B23K26/342 , G01G21/07 , G01G3/13
CPC分类号： G01G7/02 , B23K26/342 , B23K26/70 , B33Y10/00 , B33Y70/00 , B33Y80/00 , G01G3/13 , G01G21/07 , G01G21/244 , G01G3/1412 , G01G3/1414 , G01L1/26
摘要： A parallel guide of a force transmission device has movable and fixed parallel legs, and first and second parallel guiding elements. Thin-point flexional bearings connect the parallel legs to the parallel guiding elements. The movable parallel leg is guided by the parallel guiding element on the fixed parallel leg. A force transmission lever, arranged on the fixed parallel leg, has a lever bearing, and a first lever arm. The force transmission lever is pivotably mounted on the lever bearing and the first lever arm is connected to the movable parallel leg to transmit force. The force-transmitting connection is produced by a coupling element having at least one further thin-point flexional bearing, with at least one functional region of the force transmission device being formed monolithically. A functional region associates at least one bearing point with at least one of the parallel legs, the force transmission lever, and the coupling element.
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公开(公告)号：US11408763B2
公开(公告)日：2022-08-09
申请号：US16652253
申请日：2018-09-07
摘要： Load cell lift-off protection devices with the load to be measured applied directly to the spherical upper surface of the load cell and with locking members which are locking grooves in the load cell force introducing parts to grooves in the structure of the weighed installation.
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公开(公告)号：US11366005B2
公开(公告)日：2022-06-21
申请号：US16764467
申请日：2018-11-30
申请人： Mettler Toledo Instrument (Shanghai) Company Limited , Mettler-Toledo International Trading (Shanghai) Co., Ltd.
发明人： Chao Wu , Baohui Liu , Weixiang Sun , Chun Yang , Naifeng Bian , Feng Xu
摘要： A weighing sensor and a lever are disclosed. The weighing sensor has a load-receiving portion, a fixing portion, and a parallel guiding portion connected to the load-receiving portion and the fixing portion. The parallel guiding portion has upper and lower parallel guiding units, separated from each other. The ends of the parallel guiding units are connected to the load-receiving portion and the fixing portion. The fixing portion has an extension located between the parallel guiding units. The extension is at a distance from both parallel guiding units and extends to the load-receiving portion. A gap is formed between the extension and the load-receiving portion; and the distance between the extension and the upper parallel guiding unit allows a lever to pass through. The weighing sensor has a simple structure, both the processing process and the assembly process are simplified, and the processing and assembly during production are facilitated.
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公开(公告)号：US20210199487A1
公开(公告)日：2021-07-01
申请号：US17247520
申请日：2020-12-15
发明人： Chao Wu , Baohui Liu , Weixiang Sun , Feng Xu , Naifeng Bian , Chun Yang
摘要： Aweigh module with a load-receiving portion, a fixing portion, and a parallel guide portion also has a lever system with a first lever and a second lever. An additional portion of the load-receiving portion extends towards the fixing portion. An extension of the fixing portion extends towards the load-receiving portion. A first end of the first lever is connected by joints to the additional portion and the extension portion. A first end of the second lever is connected by joints to the second end of the first lever and to the extension portion. All joints are of a thin sheet structure. The second end of the second lever is configured for connection to a magnetic system. The weigh module is manufactured integrally. The use of the structure according to the present invention can meet design requirements of large range and small size of sensors.
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公开(公告)号：US10830633B2
公开(公告)日：2020-11-10
申请号：US15908452
申请日：2018-02-28
申请人： Bizerba SE & Co. KG
发明人： Juergen Fiehn , Annika Schreiber , Thomas Eger
摘要： The present invention relates to a load cell for a scale having a monolithically configured measurement body that has a force reception section, a force introduction section, and a joint section arranged between the force reception section and the force introduction section, having at least one strain gauge arranged at the upper side on the joint section for detecting a stretching deformation of the measurement body, and having electronics that are arranged at the force reception side, that are at least partly arranged on a circuit board, and that have a memory in which calibration data of the load cell and/or a value for gravity are stored, wherein a hardware interface is provided via which the memory can be accessed and via which the calibration data stored in the memory and/or the value for gravity can be changed.
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6.发明申请公开(公告)号：US20170254695A1
公开(公告)日：2017-09-07
申请号：US15061003
申请日：2016-03-04
发明人： Evan Paul Sachdeva
摘要： A weighing apparatus includes a first weighing device including a weighing platform and a second weighing device including a weighing platform located adjacent the first weighing platform. A small end fixture assembly is supported on the weighing platform of the first weighing device that supports a small end of a connecting rod thereon at a location spaced above the weighing platform of the first weighing device. A large end fixture assembly is supported on the weighing platform of the second weighing device that supports a large end of the connecting rod thereon at a location spaced above the weighing platform of the second weighing device.
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7.发明授权Device and method for the adjustment of an eccentric load error in a parallel-guiding mechanism 有权用于调整平行导向机构偏心负载误差的装置和方法公开(公告)号：US09297689B2
公开(公告)日：2016-03-29
申请号：US13738586
申请日：2013-01-10
申请人： Mettler-Toledo AG
CPC分类号： G01G21/24 , G01G3/1412 , G01G21/244 , G01G23/01
摘要： A parallel-guiding mechanism (120) has a movable parallel leg (121), a stationary parallel leg (122), a first parallel-guiding member (123) and a second parallel-guiding member (124). The parallel legs and the parallel-guiding members are connected to each other by flexure pivots, in the form of narrow material connections. There is at least one adjustment zone (135). An adjustment flexure fulcrum (136) is arranged between a flexure pivot (131) and a parallel leg. The adjustment zone is connected to the first lever end (138) of an adjustment lever (137). The adjustment flexure fulcrum forms the lever fulcrum (146) of the adjustment lever, which has an elastic domain with a section modulus that is smaller than a section modulus of the adjustment flexure fulcrum.
摘要翻译： 平行导向机构（120）具有可移动的平行腿（121），固定平行腿（122），第一平行导向构件（123）和第二平行导向构件（124）。 平行腿和平行导向构件通过弯曲枢轴彼此连接，形式为狭窄的材料连接。 至少有一个调整区（135）。 调节挠曲支点（136）布置在挠曲枢轴（131）和平行腿之间。 调节区域连接到调节杆（137）的第一杆端部（138）。 调节挠曲支点形成调节杆的杠杆支点（146），其具有弹性域，其截面模数小于调节挠曲支点的截面模数。
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公开(公告)号：US06958453B2
公开(公告)日：2005-10-25
申请号：US10844721
申请日：2004-05-13
CPC分类号： G01G23/005
摘要： A weighing pan carrier (47) for a balance with a weighing pan and with a weighing cell that includes a load-receiving portion (11) and a stationary portion (12) has an overload protection device against excessive vertically directed forces that is releasably engaged with the weighing pan carrier. The weighing pan carrier (47) is fastened to the load-receiving portion (11) of the weighing cell and has on the other hand a fixed connection to the weighing pan. The weighing pan carrier (47) has a torque safety feature, which is integrated in the overload protection device and provides protection against excessive forces acting tangentially on the weighing pan and/or on the weighing pan carrier (47) in a direction perpendicular to the direction of the weighing load.
摘要翻译： 用于与称重盘平衡的称重盘托架（47）和包括承载部分（11）和固定部分（12）的称重传感器具有过载保护装置，以防止可释放地接合的过大的垂直定向力 与秤盘托盘。 称重盘托架（47）固定在称重传感器的承载部分（11）上，另一方面与称重盘固定连接。 称重盘托架（47）具有转矩安全特征，其集成在过载保护装置中，并且提供防止在与称重盘和/或称重盘托架（47）上相切作用的过大力在垂直于称重盘 称重负载方向。
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9.发明授权Integrally formed flexure pivot for a force-measuring device, and force-transfer mechanism with the flexure pivot 有权用于力测量装置的整体形成的挠曲枢轴，以及具有挠性枢轴的力传递机构公开(公告)号：US06886418B2
公开(公告)日：2005-05-03
申请号：US10814242
申请日：2004-04-01
CPC分类号： G01G3/1412 , G01G21/244 , G01L1/2243
摘要： A flexure pivot in the form of a thin material connection formed as a result of adjacent material-free spaces is disclosed, as is a force-transfer mechanism for use in a force-measuring device, in particular a balance, containing at least one flexure pivot of the aforementioned type. The force-transfer mechanism has a stationary portion with a lever arrangement comprising at least one reduction lever and serving to transmit a force to a measuring transducer, and it further has at least one coupling element serving to introduce an input force into the lever arrangement, the coupling element being stiff against lengthwise deformation but flexible with regard to bending and having at least one thin material connection. The at least one lever is supported on the stationary portion and/or on a preceding lever by a flexible fulcrum pivot having a thin material connection. At least one thin material connection zone of a thin material connection is delimited by concave-shaped surfaces facing material-free spaces, and at least one of the material-free spaces delimiting the thin material connection zone has a shape that creates a constriction of the thin material connection zone.
摘要翻译： 公开了由于相邻的无材料空间形成的薄材料连接形式的挠曲枢轴，以及用于在力测量装置中的力传递机构，特别是平衡装置，其包含至少一个挠曲件 上述类型的枢轴。 力传递机构具有固定部分，其中杠杆装置包括至少一个减速杆并且用于向测量换能器传递力，并且还具有用于将输入力引入杠杆装置中的至少一个联接元件， 耦合元件抵抗纵向变形是刚性的，但是关于弯曲而是柔性的并且具有至少一个薄材料连接。 所述至少一个杠杆通过具有薄材料连接的柔性支点枢轴支撑在所述固定部分上和/或在前一杠杆上。 薄材料连接的至少一个薄材料连接区域由面向无材料空间的凹形表面限定，并且限定薄材料连接区域的至少一个无材料空间形成了形成 薄材料连接区。
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公开(公告)号：US5962818A
公开(公告)日：1999-10-05
申请号：US538776
申请日：1995-10-03
CPC分类号： G01G21/244
摘要： In a top scale balance which has a Roberval's chain 10 and a load weight transmitting lever 30 and in which a movable post 13 of the Roberval's chain 10 is connected to a point of force 32 of the lever 30 through an elastic connection fulcrum 51, a horizontal member 12 nearer to the elastic connection fulcrum 51, out of upper and lower horizontal members 11, 12 of the Roberval's chain 10, is greater in rigidity than the other horizontal member 11. Alternately, the upper and lower horizontal members 11, 12 are equal in rigidity and the elastic connection fulcrum 51 is positioned, in the vertical direction, at the center between the upper and lower horizontal members 11, 12. Such an arrangement prevents or reduces the movement of the elastic connection fulcrum 51 in the back-and-forth direction due to an offset placed load. Thus, even though the top scale balance is made in a compact and thin design with the lever ratio increased, the top scale balance is high in precision with a less offset position error.
摘要翻译： 在具有罗伯瓦尔链条10和负载重量传递杆30的顶部秤平衡中，罗伯瓦尔链条10的可动柱13通过弹性连接支点51连接到杠杆30的力点32， 在Roberval链条10的上部和下部水平部件11,12之间更靠近弹性连接支点51的水平部件12的刚度比其他水平部件11的刚度大。或者，上部和下部水平部件11,12 刚性相等，并且弹性连接支点51在垂直方向上位于上下水平构件11,12之间的中心。这种布置防止或减小了弹性连接支点51在背部和背面中的运动 由于偏移放置负载的方向。 因此，尽管最大尺寸的平衡是以杠杆比率增加的紧凑而薄的设计进行的，但是由于偏移位置误差较小，所以顶部秤的精度高。
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