WO2006042875A1 - Célula de carga para ascensores y similares - Google Patents
Célula de carga para ascensores y similares Download PDFInfo
- Publication number
- WO2006042875A1 WO2006042875A1 PCT/ES2004/000515 ES2004000515W WO2006042875A1 WO 2006042875 A1 WO2006042875 A1 WO 2006042875A1 ES 2004000515 W ES2004000515 W ES 2004000515W WO 2006042875 A1 WO2006042875 A1 WO 2006042875A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cell
- load
- load cell
- housing
- pivots
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/06—Arrangements of ropes or cables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3476—Load weighing or car passenger counting devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3476—Load weighing or car passenger counting devices
- B66B1/3484—Load weighing or car passenger counting devices using load cells
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/14—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing suspended loads
- G01G19/18—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing suspended loads having electrical weight-sensitive devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
- G01G3/12—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
- G01G3/14—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing measuring variations of electrical resistance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
- G01L5/10—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means
- G01L5/102—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means using sensors located at a non-interrupted part of the flexible member
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
- G01L5/10—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means
- G01L5/107—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means for measuring a reaction force applied on an element disposed between two supports, e.g. on a plurality of rollers or gliders
Definitions
- the present invention relates to a load cell for elevators and the like, which provides essential novelty characteristics and notable advantages over known means and used for the same purposes in the current state of the art.
- the invention proposes the development of a cell of the type that is used for operations of evaluation of the magnitude of a load by virtue of the deformation experienced by the effect to which it is subjected, and the transmission of this effort to strain gauges incorporated in predetermined positions of the cell body.
- the load cell proposed by the invention has been designed for use in elevators or the like, and responds to a design pattern specially designed for use with flat suspension elements, configured in the form of a tape or the like, of predetermined width.
- the field of application of the invention is comprised within the industrial sector dedicated to the manufacture and / or installation of weighing, detection and / or evaluation systems of loads in devices and devices subjected to variable or fixed loads.
- a particular example well known in practice is the case of elevators and forklifts, used to drag people or materials, in which the load cells are responsible for transmitting to the control devices a signal derived from the effort at which they they are subjected, so that the control devices determine if the load that must be supported and / or dragged is within the preset limits.
- the practical example cited above constitutes only a specific application case, and in no case is it intended to limit the scope of application, but only to serve as an illustration with a view to facilitating the understanding of the description to be made in what follows. .
- the load cells incorporate strain gauges in predetermined positions, which undergo deformations derived from the result of the effort to which the cell is subjected, which translates into an electrical signal whose magnitude depends on each type of cell, of the effort that It affects them.
- This electrical signal serves to determine the magnitude of the effort and therefore know if it is within the limits established for the development of the operation normally and absolute security
- the aforementioned strain gauges are usually housed inside cavities made for this purpose in the cell body, in positions previously calculated according to the distribution of efforts expected for the cell, so that it can be guaranteed, as far as possible , a correct and precise operation of the whole.
- load cells are known in the current state of the art which are configured as a solid metal body, of predetermined elastic characteristics, of rectangular prismatic configuration, on one of whose larger faces a location emptying has been performed.
- the strain gauge responsible for transforming the elastic deformation experienced as a result of the load in an electrical signal that is supplied to the measuring and control means, and whose cell also has three elements as orthogonally projected pivots or lugs to said major face, attached to the body in predetermined longitudinal positions, of which the central stud is out of alignment with respect to the two pivots or end studs, and between which the lift cable in which it is mounted is passed, alternating position in the successive studs, for which purpose the latter are configured with annular throats for safe accommodation of said support cable.
- load cell The type of load cell described above is of simple conception and allows for safe, simple and quick handling and assembly, being especially suitable for those cases in which the load is suspended by means of cables.
- support elements that are not constructed in the form of cables, but, which, on the contrary, are made in the form of flat, width and thickness tapes predetermined, built on a flexible material inside which incorporates a metal core consisting of several metal filiform elements distributed across the width of the tape in positions separated from each other.
- the present invention has proposed as its main objective the fact of designing and building a modified, improved load cell, especially indicated for use with flat supporting elements, of the type of a tape or similar, by which effective and lasting solutions are provided to the problem posed.
- This objective has been fully achieved by means of the load cell that will be described in the following, whose main characteristics are included in the characterizing part of claim 1 that follows.
- the cell proposed by the invention consists of two separate elements, independent, but constructed in a mutually attachable manner, consisting of a cell body itself and an external housing, of which said cell body consists, similarly to the known cells, in a rectangular prismatic body that, on one of its major faces, presents a recess for accommodation of an extensiometric gauge suitable for the detection of the deformation experienced by the cell by effect of the load and the generation of a proportional electrical signal that is sent to the measuring and control means through an appropriate cable, and from whose main face three orthogonally extended rods are also projected, located in predetermined positions along the length of the cell body and with a misalignment of the central rod with respect to the ends, with the particularity that such rods are devoid of any annular recess as occurs in those currently used, and are also properly sized for a correct coupling to the support belt, while the casing is generally prismatic, internally hollow, open on one of the major sides for coupling to the cell body, and provided on both opposite minor sides of passage openings of
- the formation of protruding thickens is provided on the inner side, which constitute stops on the lateral edge of the tape that passes through it, while in relation to both major faces of the prism It shows a recess extended to the full height and intended to receive, house and securely hold the sides of the cell body.
- Figures la and Ib respectively show front elevation and side elevation views of the cell body constructed in accordance with the invention.
- Figures 2a to 2e show views in side elevation, front elevation, rear elevation, upper floor and lower floor of the outer shell
- Figure 3 illustrates a cross section taken along line III-III of Figure 2a
- Figure 4 is a perspective view of the assembly of both constituent elements of the load cell of the invention.
- Figure 5 illustrates, finally, a representation of the load cell assembly of the invention in its operational state.
- the cell of the invention is constituted by a cell body 1 and a housing 2, of which the cell body is constructed, similar to the cells of the current state of the art, from a solid metal prismatic body, on one of whose major faces a portion 3 has been lowered for housing of the corresponding strain gauge capable of being connected by a cable 4 with the external means for measuring and controlling the load by virtue of the magnitude of the electrical signal generated by said strain gauge as a result of the deformation experienced by the body 1 when subjected to variable loads.
- the body 1 has three stems 5, with a smooth surface, devoid of any recess or throat, joined therein in predetermined positions, constructed with a metallic material, of pre-established dimensions, and which as usual , are distributed along the body 1 in longitudinally non-aligned positions as can be seen in Figure la.
- the housing 2 is generally prismatic, internally hollow, open on one of the smaller side faces, closed on the opposite side, and provided with both openings bases 6a, 6b in correspondingly opposite positions.
- the formation of two protuberant portions 7 extended transversely to almost the entire width of said face is provided by the inner side of the closed side wall, while the Inside of larger side faces, it is planned to form a recessed area 8 extended to the total height of said faces, next to the front edge thereof.
- recessed zones 8 can be seen in greater detail in the view that appears in Figure 3, corresponding to a section taken along the line III-III of Figure 2a, whose dimensions coincide with the sides of the cell body 1, said zones 8 intended to receive, house and retain said body in the condition of mutually coupled body and housing.
- Figure 4 shows an exploded view of the load cell assembly of the invention, in which both body and housing elements 1 can be seen in a condition prior to coupling, and in which the support belt 9 is shown of the load coupled to the stems 5 of said cell body.
- the Figure shows the ability to adapt the sizing of the rods to the magnitude in width presented by said belt 9.
- the condition of complete coupling and therefore of assembled cell appears in Figure 5, wherein said body 1 is inserted into the interior of the housing 2 and housed in the recessed lateral zones 8 that have been made in the interior of both major lateral walls of the housing 2.
- the protruding portions 7 constitute a stop for the inner side edge of the tape 9, preventing a longer longitudinal contact with the corresponding wall in avoidance of high stresses that could tend to the separation between the body 1 and the housing 2. It is not considered necessary to make the content of this description more extensive so that a person skilled in the art can understand its scope and the advantages derived from the invention, as well as develop and put into practice the object thereof.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES04798242.6T ES2532496T3 (es) | 2004-09-02 | 2004-11-18 | Célula de carga para ascensores y similares |
EP04798242.6A EP1788365B1 (en) | 2004-09-02 | 2004-11-18 | Load cell for elevators and similar |
JP2007528892A JP2008511518A (ja) | 2004-09-02 | 2004-11-18 | エレベーターなどのためのロードセル |
US11/713,162 US7493834B2 (en) | 2004-09-02 | 2007-03-01 | Load cell for elevators and similar |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ESP200402125 | 2004-09-02 | ||
ES200402125A ES2249169B1 (es) | 2004-09-02 | 2004-09-02 | Celula de carga para ascensores y similares. |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/713,162 Continuation-In-Part US7493834B2 (en) | 2004-09-02 | 2007-03-01 | Load cell for elevators and similar |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006042875A1 true WO2006042875A1 (es) | 2006-04-27 |
Family
ID=36101251
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES2004/000515 WO2006042875A1 (es) | 2004-09-02 | 2004-11-18 | Célula de carga para ascensores y similares |
Country Status (7)
Country | Link |
---|---|
US (1) | US7493834B2 (es) |
EP (1) | EP1788365B1 (es) |
JP (1) | JP2008511518A (es) |
CN (1) | CN100554895C (es) |
ES (2) | ES2249169B1 (es) |
RU (1) | RU2360220C2 (es) |
WO (1) | WO2006042875A1 (es) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI120763B (fi) * | 2006-06-05 | 2010-02-26 | Kone Corp | Menetelmä kuorman mittaamiseksi hississä ja hissi |
ES2337646B1 (es) * | 2007-09-26 | 2011-02-28 | Dinacell Electronica Sl | Celula de carga para cables planos. |
US8162110B2 (en) * | 2008-06-19 | 2012-04-24 | Thyssenkrupp Elevator Capital Corporation | Rope tension equalizer and load monitor |
SE535527C2 (sv) * | 2010-04-15 | 2012-09-11 | Tenmet Ab | Anordning för kontroll av spänning i band |
US20140283625A1 (en) * | 2013-03-22 | 2014-09-25 | Dinacell Electronica, Sl | Sensor for measuring mechanical tensions in a wire |
RU2627860C2 (ru) * | 2013-03-29 | 2017-08-14 | Динаселл Электроника, Сл | Датчик для измерения натяжения тросов |
JP6253466B2 (ja) * | 2014-03-24 | 2017-12-27 | 本田技研工業株式会社 | 車両用燃料タンクの残燃料量検出装置 |
CN108431568A (zh) * | 2016-02-23 | 2018-08-21 | 株式会社阿智精机 | 货物勒紧构件的松弛检测装置和货物勒紧构件的松弛检测系统 |
CN106989941A (zh) * | 2017-03-30 | 2017-07-28 | 中车青岛四方车辆研究所有限公司 | 架车机举升单元加载试验测控系统及方法 |
US10618772B2 (en) * | 2017-06-20 | 2020-04-14 | Otis Elevator Company | Elevator termination assembly that provides an indication of elevator car load |
EP3757535A4 (en) * | 2018-02-20 | 2021-03-10 | Dinacell Electronica, S.L. | FORCE MEASURING CELL |
EP3578494A1 (de) * | 2018-06-06 | 2019-12-11 | Inventio AG | Aufzugsanlage und verfahren zum überwachen des riemenzustands |
CA3098709A1 (en) * | 2020-11-10 | 2022-05-10 | Intelligent Secure Strap Inc. | Strap tension detector |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4118978A (en) * | 1976-09-03 | 1978-10-10 | N. Civy & Cie, Sa | Thread tension gage |
US4577512A (en) | 1983-09-21 | 1986-03-25 | N. Zivy & Cie, S.A. | Thread-tension meter |
US6122978A (en) | 1998-04-02 | 2000-09-26 | Cleveland Motion Controls | Web tension cantilever transducer apparatus |
US6209401B1 (en) | 1996-02-20 | 2001-04-03 | BäCKLUND KENNETH LARS | Tension force meter |
ES2187298A1 (es) | 2001-11-08 | 2003-05-16 | Dinacell Electronica Sl | Sensor perfeccionado para medir tensiones mecanicas en cables. |
JP2003222561A (ja) | 2002-01-31 | 2003-08-08 | Tokai Rika Co Ltd | 張力検出装置 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2795136A (en) * | 1956-08-21 | 1957-06-11 | Matt Heinrich Karl | Cable load gage |
US3376740A (en) * | 1964-06-09 | 1968-04-09 | Du Pont | Tension transducer |
US3426589A (en) * | 1966-07-18 | 1969-02-11 | Lebow Associates Inc | Tension transducer |
US3618378A (en) * | 1969-10-02 | 1971-11-09 | Chrysler Corp | Seat belt transducer |
US3868662A (en) * | 1974-03-25 | 1975-02-25 | Jr Levi Russell | Mobile home anchor strand tension indicator |
JPH0643931B2 (ja) * | 1986-10-20 | 1994-06-08 | 株式会社三誠商会 | テンシヨンゲ−ジ |
JP2507606B2 (ja) * | 1989-06-22 | 1996-06-12 | ダイアホイルヘキスト株式会社 | 磁気記録媒体用ポリエステルフィルム |
US6123176A (en) * | 1996-05-28 | 2000-09-26 | Otis Elevator Company | Rope tension monitoring assembly and method |
US6205868B1 (en) * | 1997-12-10 | 2001-03-27 | Automotive Systems Lab | Hall-effect seat belt tension sensor |
US6450534B1 (en) * | 2001-05-25 | 2002-09-17 | Cts Corporation | Seat belt tension sensor |
US7066036B2 (en) * | 2002-01-23 | 2006-06-27 | Micelect, S.L. | Instrument for measuring suspended masses for machines that operate with traction cables |
WO2003074406A1 (en) * | 2002-02-28 | 2003-09-12 | Otis Elevator Company | Elevator load weighing device |
US7237656B2 (en) * | 2002-02-28 | 2007-07-03 | Otis Elevator Company | Elevator load weighing device |
US7242286B2 (en) * | 2003-08-22 | 2007-07-10 | Autoliv Asp, Inc. | Seat belt tension indicator |
US7424832B1 (en) * | 2007-09-04 | 2008-09-16 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Cable tensiometer for aircraft |
-
2004
- 2004-09-02 ES ES200402125A patent/ES2249169B1/es active Active
- 2004-11-18 ES ES04798242.6T patent/ES2532496T3/es active Active
- 2004-11-18 CN CNB2004800439121A patent/CN100554895C/zh not_active Expired - Fee Related
- 2004-11-18 JP JP2007528892A patent/JP2008511518A/ja active Pending
- 2004-11-18 WO PCT/ES2004/000515 patent/WO2006042875A1/es active Application Filing
- 2004-11-18 RU RU2007111715/28A patent/RU2360220C2/ru active
- 2004-11-18 EP EP04798242.6A patent/EP1788365B1/en not_active Not-in-force
-
2007
- 2007-03-01 US US11/713,162 patent/US7493834B2/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4118978A (en) * | 1976-09-03 | 1978-10-10 | N. Civy & Cie, Sa | Thread tension gage |
US4577512A (en) | 1983-09-21 | 1986-03-25 | N. Zivy & Cie, S.A. | Thread-tension meter |
US6209401B1 (en) | 1996-02-20 | 2001-04-03 | BäCKLUND KENNETH LARS | Tension force meter |
US6122978A (en) | 1998-04-02 | 2000-09-26 | Cleveland Motion Controls | Web tension cantilever transducer apparatus |
ES2187298A1 (es) | 2001-11-08 | 2003-05-16 | Dinacell Electronica Sl | Sensor perfeccionado para medir tensiones mecanicas en cables. |
JP2003222561A (ja) | 2002-01-31 | 2003-08-08 | Tokai Rika Co Ltd | 張力検出装置 |
Also Published As
Publication number | Publication date |
---|---|
EP1788365B1 (en) | 2014-12-17 |
ES2249169B1 (es) | 2007-03-16 |
EP1788365A1 (en) | 2007-05-23 |
RU2360220C2 (ru) | 2009-06-27 |
US20070151773A1 (en) | 2007-07-05 |
CN100554895C (zh) | 2009-10-28 |
ES2532496T3 (es) | 2015-03-27 |
CN101010571A (zh) | 2007-08-01 |
US7493834B2 (en) | 2009-02-24 |
RU2007111715A (ru) | 2008-10-10 |
ES2249169A1 (es) | 2006-03-16 |
JP2008511518A (ja) | 2008-04-17 |
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