JP2006125869A - Load measuring instrument - Google Patents

Load measuring instrument Download PDF

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JP2006125869A
JP2006125869A JP2004311018A JP2004311018A JP2006125869A JP 2006125869 A JP2006125869 A JP 2006125869A JP 2004311018 A JP2004311018 A JP 2004311018A JP 2004311018 A JP2004311018 A JP 2004311018A JP 2006125869 A JP2006125869 A JP 2006125869A
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load
detecting lever
load detecting
movable member
base part
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JP4687068B2 (en
Inventor
Nobuyasu Bessho
伸康 別所
Kenji Hori
健二 堀
Tsutomu Tanoi
務 田野井
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Aisin Corp
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Aisin Seiki Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To realize a load measuring instrument capable of measuring a level of a load generated when a movable member pivoted to a turning shaft is opened and closed, independent of a position of the movable member. <P>SOLUTION: This load measuring instrument having a base part journaled turnably to a fixed part, a load detecting lever fixed to the base part under an overhung condition with respect to the base part, and extended along a longitudinal direction of the base part, a strain gage arranged on the load detecting lever to output a signal in response to a deformation amount of the load detecting lever, and an engaging piece fixed to a free end of the load detecting lever is provided, in the base part, with an interference preventive means for making the load detecting lever not abut to the base part under the condition where the engaging piece of the load detecting lever is engaged with the movable member to deflect the load detecting lever. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、回動軸に枢支された可動部材が駆動装置によって駆動される場合、可動部材に発生する荷重測定が可能な可動部材の荷重測定装置に関するものである。   The present invention relates to a load measuring device for a movable member capable of measuring a load generated on the movable member when the movable member pivotally supported by a rotating shaft is driven by a drive device.

本発明に関連する負荷検出装置として、特許文献１（特開平９−１６５１７７号公報）に開示された可動物体が発生する荷重測定装置に関する技術が知られている。同公報の図１に開示されているように、エレベータのドアにロードセルを押し当てることによりドアの閉力を測定するものである。
特開平９−１６５１７７号 As a load detection device related to the present invention, a technology related to a load measurement device that generates a movable object disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 9-165177) is known. As disclosed in FIG. 1 of the publication, the door closing force is measured by pressing a load cell against the elevator door.
JP-A-9-165177

ところが、前記した特許文献１による荷重測定装置は、スライド物体（エレベータ用ドア）が発生する閉動作時の荷重を測定するものであった。即ち、スライドドアの動作荷重を計測することはできるが、回動軸に枢支された物体の動作荷重が計測できるものではなく、また、物体の開動作時の荷重が測定できるような技術事項が示されるものでもなかった。   However, the load measuring device according to Patent Document 1 described above measures a load during a closing operation in which a slide object (elevator door) is generated. In other words, although it is possible to measure the operating load of the sliding door, it is not possible to measure the operating load of the object pivotally supported on the rotating shaft, and technical matters that can measure the load during the opening operation of the object Was not indicated.

本発明は、前記した従来技術では測定できなかった回動軸に枢支された可動部材が開閉動作時に発生する荷重の大きさが可動部材の位置に依存せず測定できる荷重測定装置を実現することを技術課題とした。   The present invention realizes a load measuring apparatus capable of measuring the magnitude of the load generated during the opening / closing operation of the movable member pivotally supported by the rotating shaft, which could not be measured by the above-described prior art, without depending on the position of the movable member. This was a technical issue.

上記課題を解決するために講じた技術的手段は、固定部に対し回動自在に軸支されるベース部と、ベース部に対して片持ち状態でベース部に固定され、かつベース部の長手方向に延在する荷重検知レバーと、荷重検知レバー上に配設され、荷重検知レバーの変形量に応じた信号を出力する歪ゲージと、荷重検知レバーの自由端に固定される係合片とを有する荷重測定装置において、荷重検知レバーの係合片が可動部材と係合して荷重検知レバーが撓んだ状態で、荷重検知レバーがベース部と当接しない干渉防止手段をベース部に設けたこと荷重測定装置としたことである。   The technical means taken to solve the above problems are a base part pivotally supported with respect to the fixed part, a base part fixed to the base part in a cantilevered state, and the length of the base part A load detection lever extending in the direction, a strain gauge disposed on the load detection lever and outputting a signal corresponding to the deformation amount of the load detection lever, and an engagement piece fixed to the free end of the load detection lever In the load measuring apparatus, the base portion is provided with interference preventing means for preventing the load detection lever from coming into contact with the base portion when the engagement piece of the load detection lever is engaged with the movable member and the load detection lever is bent. That is, the load measuring device is used.

上記技術手段を講じたことにより、回動軸に枢支された可動部材が発生する荷重が可動部材の位置に依存せず可動部材の動作範囲全領域において、かつ開閉動作の方向に依存することなく荷重を測定することができる。   By taking the above technical means, the load generated by the movable member pivotally supported by the rotating shaft does not depend on the position of the movable member, but depends on the entire operating range of the movable member and on the direction of the opening / closing operation. Load can be measured.

本発明の技術思想を適用した実施例について、車両用のサンルーフの動作荷重測定装置を例にして動作荷重の測定装置、およびその荷重測定方法を説明する。   With respect to an embodiment to which the technical idea of the present invention is applied, an operating load measuring device and a load measuring method thereof will be described by taking an operating load measuring device for a sunroof for a vehicle as an example.

図１は、本発明を適用した可動部材の動作荷重測定装置の斜視図を示す。そして、図２は、車両用のサンルーフの動作荷重を図１の可動部材の動作荷重測定装置により測定する状態を示すサンルーフ部の断面と可動部材の動作荷重測定装置の側面図を示している。   FIG. 1 is a perspective view of an apparatus for measuring an operating load of a movable member to which the present invention is applied. FIG. 2 shows a cross-section of the sunroof portion showing a state in which the operating load of the vehicle sunroof is measured by the operating load measuring device for the movable member shown in FIG. 1, and a side view of the operating load measuring device for the movable member.

荷重測定装置１はベース部２、ベース部２の両側に配置される固定部３ａ、３ｂ、およびベース部２と固定部３ａ、３ｂを結合するハンドル４から構成されている。ベース部２の側部には２つのフランジ２ａ、２ｂが設けられており、ハンドル４はフランジ２ａ、２ｂの先端部分に回動自在に軸支されている。ハンドル４は両固定部３ａ、３ｂに固定されているため、ベース部２は固定部３ａ、３ｂが固定面（車体側）に固定された場合、固定部３ａ、３ｂに対し回動自在に支持されることになる。また、固定部３ａ、３ｂには固定面に対し固定可能になるように、吸盤３ｃ、３ｃが設けられている。   The load measuring device 1 includes a base portion 2, fixing portions 3a and 3b disposed on both sides of the base portion 2, and a handle 4 that couples the base portion 2 and the fixing portions 3a and 3b. Two flanges 2a and 2b are provided on the side of the base portion 2, and the handle 4 is pivotally supported at the tip portions of the flanges 2a and 2b. Since the handle 4 is fixed to both the fixing portions 3a and 3b, the base portion 2 is supported rotatably with respect to the fixing portions 3a and 3b when the fixing portions 3a and 3b are fixed to the fixing surface (vehicle body side). Will be. In addition, suckers 3c and 3c are provided on the fixing portions 3a and 3b so as to be fixed to the fixing surface.

ベース部２には、荷重検知レバー５の一端がスペーサー６を介して片持ち状態で固定されている。ベース部２のスペーサー６が固定される他端の先端部分には、固定面（サンルーフの開口端）に荷重測定装置１が位置決め固定できるようにベース部２の両端に固定片７が固定されている。   One end of the load detection lever 5 is fixed to the base portion 2 via a spacer 6 in a cantilever state. Fixing pieces 7 are fixed to both ends of the base portion 2 so that the load measuring device 1 can be positioned and fixed to the fixing surface (open end of the sunroof) at the tip of the other end to which the spacer 6 of the base portion 2 is fixed. Yes.

固定片７が配設されたベース部２の端部には、干渉防止手段を構成する切欠部８が設けられている。切欠部８は、荷重検知レバー５が最大に撓んだ状態で両者が接触して干渉しないように形成されている。荷重検知レバー５の自由端を構成する先端部分には、後述する可動部材（サンルーフパネル）に係合可能となるように係合片９が固定されている。係合片９は、可動部材の大きさに応じてその大きさ（突出量）を変更することができるように取換え可能となっている。なお、切欠部８は実施例では矩形状に形成したが、荷重検知レバー５の変形時にベース部２との間で干渉しないように形成されるものであれば切欠部８の形状は問わない。   At the end of the base portion 2 where the fixed piece 7 is disposed, a notch portion 8 constituting an interference preventing means is provided. The notch 8 is formed so that the load detection lever 5 is not bent and interferes with the load detection lever 5 being maximally bent. An engagement piece 9 is fixed to the tip portion constituting the free end of the load detection lever 5 so as to be engageable with a movable member (sunroof panel) described later. The engagement piece 9 can be replaced so that its size (projection amount) can be changed according to the size of the movable member. Although the notch 8 is formed in a rectangular shape in the embodiment, the shape of the notch 8 is not limited as long as it is formed so as not to interfere with the base 2 when the load detection lever 5 is deformed.

荷重検知レバー５には、レバーの変形に応じて信号を出力する歪ゲージ１０が貼付けられている。歪ゲージ１０は、例えば、周知のホイトストーンブリッジ形式の抵抗体から成るゲージを設けても良いし、薄膜起歪体を用いることも可能である。したがって、荷重検知レバー５の変形量に応じて検知できるセンサであればその形式・仕様は制限されるものではない。本実施例では歪ゲージ１０として抵抗体を適用した。   A strain gauge 10 that outputs a signal according to the deformation of the lever is attached to the load detection lever 5. As the strain gauge 10, for example, a gauge made of a well-known Wheatstone bridge type resistor may be provided, or a thin film strain generator may be used. Therefore, the type and specification of the sensor are not limited as long as the sensor can be detected according to the deformation amount of the load detection lever 5. In this embodiment, a resistor is applied as the strain gauge 10.

次に、図２に基づいて荷重測定装置１と車両のサンルーフ１１の構造の関連と作動について説明する。   Next, the relationship and operation of the structure of the load measuring device 1 and the vehicle sunroof 11 will be described with reference to FIG.

サンルーフ１１の開口の後方には、荷重測定装置１が固定部３ａ、３ｂにより車両のボディ１３（固定面）に固定されている。このとき、固定片７により荷重測定装置１とサンルーフ１１の開口との相対位置が規定されている。本実施例では、サンルーフ１１はチルト動作するものであり、このチルト動作するサンルーフ１１の動作荷重を検出できるように荷重測定装置１が機能する。図２はサンルーフ１１がチルトアップ状態からチルトダウン状態に変化する状態を示し、係合片９とサンルーフ１１が係合する直前の状況である。サンルーフ１１のチルトダウン動作に伴いサンルーフ１１が係合片９と係合し、荷重検知レバー５に撓みが発生し、荷重検知レバー５に掛かる荷重値が検出できるようになっている。図２に示した状態では荷重検知レバー５の撓み量が小さいため、未だベース部２と係合していないが、サンルーフ１１がさらにチルトダウンすることにより、荷重検知レバー５はベース部２に設けた切欠部８に侵入しつつ変形が進行する。サンルーフ１１のチルトダウン動作の場合、係合片９はサンルーフ１１の下面に係合するが、チルトアップ動作の場合、係合片９はサンルーフ１１の上面に係合して荷重検知レバー５を変形させる。   Behind the opening of the sunroof 11, the load measuring device 1 is fixed to the vehicle body 13 (fixed surface) by the fixing portions 3a and 3b. At this time, the relative position between the load measuring device 1 and the opening of the sunroof 11 is defined by the fixed piece 7. In the present embodiment, the sunroof 11 performs a tilt operation, and the load measuring device 1 functions so as to detect the operation load of the sunroof 11 that performs the tilt operation. FIG. 2 shows a state in which the sunroof 11 changes from the tilt-up state to the tilt-down state, and is a state immediately before the engagement piece 9 and the sunroof 11 are engaged. As the sunroof 11 is tilted down, the sunroof 11 is engaged with the engagement piece 9, the load detection lever 5 is bent, and the load value applied to the load detection lever 5 can be detected. In the state shown in FIG. 2, since the amount of bending of the load detection lever 5 is small, the load detection lever 5 is not yet engaged with the base portion 2, but the sunroof 11 is further tilted down so that the load detection lever 5 is provided on the base portion 2. The deformation progresses while entering the cutout 8. In the tilt-down operation of the sunroof 11, the engagement piece 9 engages with the lower surface of the sunroof 11, but in the tilt-up operation, the engagement piece 9 engages with the upper surface of the sunroof 11 to deform the load detection lever 5. Let

以上の通り、本実施例による荷重測定装置１ではサンルーフ１１（可動部材）の動作がその初期状態から動作を完了する全領域において可動部材の荷重を検出することができる。また、可動部材の動作の方向性、即ち、閉方向（チルトダウン動作）、開方向（チルトアップ動作）に依存せず可動部材が発生する荷重を検知することができる。   As described above, the load measuring apparatus 1 according to the present embodiment can detect the load of the movable member in the entire region where the operation of the sunroof 11 (movable member) completes the operation from the initial state. Further, the load generated by the movable member can be detected without depending on the directionality of the movement of the movable member, that is, the closing direction (tilt-down operation) and the opening direction (tilt-up operation).

図１は、本発明を適用した可動部材の動作荷重測定装置の斜視図を示す。FIG. 1 is a perspective view of an apparatus for measuring an operating load of a movable member to which the present invention is applied. 図２は、車両用のサンルーフの動作荷重を図１の可動部材の動作荷重測定装置により測定する状態を示すサンルーフ部の断面と可動部材の動作荷重測定装置の側面図を示す。FIG. 2 shows a cross-section of the sunroof portion showing a state in which the operating load of the vehicle sunroof is measured by the operating load measuring device for the movable member shown in FIG. 1 and a side view of the operating load measuring device for the movable member.

符号の説明Explanation of symbols

３ａ 固定部
３ｂ 固定部
２ ベース部
５ 荷重検知レバー
１０ 歪ゲージ
１ 荷重測定装置
８ 干渉防止手段（切欠部） 3a Fixing part 3b Fixing part 2 Base part 5 Load detection lever 10 Strain gauge 1 Load measuring device 8 Interference prevention means (notch part)

Claims (3)

固定部に対し回動自在に軸支されるベース部と、
ベース部に対して片持ち状態でベース部に固定され、かつベース部の長手方向に延在する荷重検知レバーと、
荷重検知レバー上に配設され、荷重検知レバーの変形量に応じた信号を出力する歪ゲージと、
荷重検知レバーの自由端に固定される係合片とを有する荷重測定装置において、
荷重検知レバーの係合片が可動部材と係合して荷重検知レバー荷重検知レバーが撓んだ状態で、荷重検知レバーがベース部と当接しない干渉防止手段をベース部に設けたことを特徴とする荷重測定装置。 A base part pivotally supported with respect to the fixed part;
A load detection lever fixed to the base portion in a cantilevered state with respect to the base portion and extending in the longitudinal direction of the base portion;
A strain gauge disposed on the load detection lever and outputting a signal corresponding to the deformation amount of the load detection lever;
In a load measuring device having an engagement piece fixed to a free end of a load detection lever,
The load detecting lever is provided with interference preventing means on the base portion in which the load detecting lever is engaged with the movable member and the load detecting lever is bent and the load detecting lever is not in contact with the base portion. Load measuring device. 荷重検知レバー上に配設された歪ゲージは抵抗体により構成される請求項１記載の荷重検測定装置。   2. The load measuring and measuring apparatus according to claim 1, wherein the strain gauge disposed on the load detecting lever is constituted by a resistor. 荷重検知レバーは車両のサンルーフに係合して、サンルーフのチルトアップおよびチルトダウン時のサンルーフの動作荷重を検出する請求項１記載の荷重検測定装置。   2. The load detection and measurement device according to claim 1, wherein the load detection lever is engaged with a sunroof of the vehicle to detect an operation load of the sunroof when the sunroof is tilted up and down.
JP2004311018A 2004-10-26 2004-10-26 Load measuring device Expired - Fee Related JP4687068B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009174873A (en) * 2008-01-21 2009-08-06 Kanto Auto Works Ltd Measuring device for static closing force of hood and luggage of vehicle
CN104406727A (en) * 2014-11-26 2015-03-11 芜湖莫森泰克汽车科技有限公司 Clamping force and sliding force testing device of automobile sunroof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6466521A (en) * 1987-09-08 1989-03-13 Sharp Kk Strain gauge type scale
JPH0195633U (en) * 1987-12-16 1989-06-23
JP2001330522A (en) * 2000-05-19 2001-11-30 Alps Electric Co Ltd Load sensor
JP2002178767A (en) * 2000-12-13 2002-06-26 Oi Seisakusho Co Ltd Sunroof control device for vehicle
JP2002256762A (en) * 2001-02-27 2002-09-11 Aisin Seiki Co Ltd Electric moving device
JP2003057132A (en) * 2001-06-08 2003-02-26 Alps Electric Co Ltd Load detecting apparatus
JP2003240633A (en) * 2003-02-20 2003-08-27 Takata Corp Seat weight measuring device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6466521A (en) * 1987-09-08 1989-03-13 Sharp Kk Strain gauge type scale
JPH0195633U (en) * 1987-12-16 1989-06-23
JP2001330522A (en) * 2000-05-19 2001-11-30 Alps Electric Co Ltd Load sensor
JP2002178767A (en) * 2000-12-13 2002-06-26 Oi Seisakusho Co Ltd Sunroof control device for vehicle
JP2002256762A (en) * 2001-02-27 2002-09-11 Aisin Seiki Co Ltd Electric moving device
JP2003057132A (en) * 2001-06-08 2003-02-26 Alps Electric Co Ltd Load detecting apparatus
JP2003240633A (en) * 2003-02-20 2003-08-27 Takata Corp Seat weight measuring device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009174873A (en) * 2008-01-21 2009-08-06 Kanto Auto Works Ltd Measuring device for static closing force of hood and luggage of vehicle
CN104406727A (en) * 2014-11-26 2015-03-11 芜湖莫森泰克汽车科技有限公司 Clamping force and sliding force testing device of automobile sunroof

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