JP2007093227A - Insertion detector - Google Patents

Insertion detector Download PDF

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Publication number
JP2007093227A
JP2007093227A JP2005279139A JP2005279139A JP2007093227A JP 2007093227 A JP2007093227 A JP 2007093227A JP 2005279139 A JP2005279139 A JP 2005279139A JP 2005279139 A JP2005279139 A JP 2005279139A JP 2007093227 A JP2007093227 A JP 2007093227A
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piezoelectric sensor
opening
protector
closing body
hollow portion
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JP2005279139A
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Japanese (ja)
Inventor
Naoteru Kato
直輝 加藤
Masaru Hoshina
勝 星名
Hironori Koeda
裕典 小枝
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Aisin Corp
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Aisin Seiki Co Ltd
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Priority to JP2005279139A priority Critical patent/JP2007093227A/en
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Withdrawn legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide an insertion detector capable of detecting accurately the insertion of an object. <P>SOLUTION: This insertion detector 1 is provided with a slide door 3 operated to open and close an opening 2 formed in a vehicle, a protector 5 held by an end part of the slide door 3, and having a hollow part 51, and a piezoelectric sensor 4 stored in the hollow part 51, and displaced with respect to the slide door 3 when the slide door 3 under an operation contacts with the object 6 via the protector 5, and the displacement of the piezoelectric sensor 4 is detected as the insertion of the object 6. The insertion detector 1 is provided further with a holding member 7 provided in the hollow part 51 and for holding a position of the piezoelectric sensor 4 in the hollow part 51 by elastic force. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、車両の開口を開閉すべく作動する開閉体に物体が接触したことを検知する挟み込み検知装置に関する。   The present invention relates to a pinching detection device that detects that an object has come into contact with an opening / closing body that operates to open and close an opening of a vehicle.

公知の挟み込み検知装置として、後述の特許文献１に記載のものがある。この装置は、車両のボディ開口を開閉すべく作動するスライドドアと、スライドドアにおける作動方向の端部に保持され、中空部を有するプロテクタと、中空部に収容され、作動中のスライドドアがプロテクタを介して物体と接触した場合にスライドドアに対して変位する圧電センサとを備え、圧電センサの変位を物体の挟み込みとして検知するものである。圧電センサを収容するプロテクタは、ゴム・エラストマー等で形成される。
特開２００５−１１４３９５号公報 As a known pinching detection device, there is one described in Patent Document 1 described later. This device includes a slide door that operates to open and close a vehicle body opening, a protector having a hollow portion that is held at an end in an operation direction of the slide door, and a slide door that is accommodated in the hollow portion and is in operation. And a piezoelectric sensor that is displaced with respect to the sliding door when it comes into contact with the object via the, and detects the displacement of the piezoelectric sensor as the object is caught. The protector that accommodates the piezoelectric sensor is formed of rubber or elastomer.
JP 2005-114395 A

上述の装置においては、製造に係る要件から、中空部の寸法には公差を設ける必要がある。この構造においては、中空部に収容された圧電センサと中空部との間に隙間が形成されてしまうので、スライドドアがプロテクタを介して物体と接触しなくても、車両の振動等によって圧電センサが隙間の範囲内で変位し得る。このため、車両の振動等が「物体の挟み込み」として誤って検知される可能性があった。   In the above-described apparatus, it is necessary to provide a tolerance in the dimension of the hollow portion due to the requirements for manufacturing. In this structure, since a gap is formed between the piezoelectric sensor housed in the hollow part and the hollow part, the piezoelectric sensor is not affected by the vibration of the vehicle even if the sliding door does not contact the object via the protector. Can be displaced within the gap. For this reason, there is a possibility that the vibration of the vehicle or the like is erroneously detected as “object pinching”.

よって、本発明は上記の問題点に鑑みてなされたものであり、物体の挟み込みをより正確に検知できる挟み込み検知装置を提供することを課題とする。   Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a pinching detection device that can detect pinching of an object more accurately.

上記課題を解決するために、本発明にて講じた技術的手段は、請求項１に記載の様に、車両に形成された開口を開閉すべく作動する開閉体と、該開閉体における作動方向の端部に保持され、中空部を有する可撓部材と、前記中空部に収容され、作動中の前記開閉体が前記可撓部材を介して物体と接触した場合に前記開閉体に対して変位する圧電センサと、を備え、前記圧電センサの変位を前記物体の挟み込みとして検知する挟み込み検知装置において、前記中空部に設けられ、該中空部における前記圧電センサの位置を弾性力により保持する弾性部材をさらに備える構成としたことである。   In order to solve the above-mentioned problems, the technical means taken in the present invention are, as claimed in claim 1, an opening / closing body that operates to open and close an opening formed in a vehicle, and an operating direction in the opening / closing body. And a flexible member having a hollow part, and being displaced in relation to the opening / closing body when the opening / closing body in operation is in contact with an object through the flexible member. And a piezoelectric sensor that detects a displacement of the piezoelectric sensor as a pinch of the object, and is an elastic member that is provided in the hollow portion and holds the position of the piezoelectric sensor in the hollow portion by an elastic force It is set as the structure further equipped with.

好ましくは、請求項２に記載の様に、前記可撓部材には、前記物体と接触し弾性変形する一側と前記開閉体に保持される他側とが設けられ、前記圧電センサは、前記一側に隣接し、前記弾性部材とは干渉位置関係にあると良い。   Preferably, as described in claim 2, the flexible member is provided with one side that comes into contact with the object and elastically deforms and the other side that is held by the opening / closing body, and the piezoelectric sensor is Adjacent to one side, the elastic member may be in an interference position relationship.

好ましくは、請求項３に記載の様に、前記圧電センサは、前記一側と面で接触すると良い。   Preferably, as described in claim 3, the piezoelectric sensor is in contact with the one side on a surface.

本発明によれば、中空部における圧電センサの位置が、弾性部材の弾性力によって保持される。この構造によれば、開閉体が可撓部材を介して物体に接触しない限り、圧電センサは開閉体に対して変位することがない。このため、車両の振動等によって圧電センサが変位することがなく、物体の挟み込みがより正確に検知される。   According to the present invention, the position of the piezoelectric sensor in the hollow portion is held by the elastic force of the elastic member. According to this structure, the piezoelectric sensor is not displaced with respect to the opening / closing body unless the opening / closing body contacts the object through the flexible member. For this reason, the piezoelectric sensor is not displaced by the vibration of the vehicle or the like, and the pinching of the object is detected more accurately.

以下、本発明を実施するための最良の形態を、図面を基に説明する。   The best mode for carrying out the present invention will be described below with reference to the drawings.

図１は、本発明に係る挟み込み検知装置１の概略的な斜視図である。車両には、乗員が出入りするための開口２が形成されている。スライドドア３（開閉体）は、開口３を開閉すべく、図示しない駆動機構の駆動力により、前後方向に作動する。スライドドア３における前後方向の端部３１には、圧電センサ４を収容したプロテクタ５が保持されている。   FIG. 1 is a schematic perspective view of a pinch detection device 1 according to the present invention. The vehicle has an opening 2 through which passengers enter and exit. The slide door 3 (opening / closing body) is operated in the front-rear direction by a driving force of a driving mechanism (not shown) to open and close the opening 3. A protector 5 that houses the piezoelectric sensor 4 is held at an end 31 in the front-rear direction of the slide door 3.

図２は、図１におけるＩＩ−ＩＩ線に沿う断面図である。スライドドア３は、外板３２と内板３３とから形成されている。外板３２の端部は、内板３３の端部と重ね合わされ、フランジ部３４を形成している。フランジ部３４は、プロテクタ５を保持している。プロテクタ５は、ＥＰＤＭ、シリコンゴム、エラストマー等（ゴム系の発泡材）で形成されている。プロテクタ５には、中空部５１が設けられている。中空部５１には、圧電センサ４が収容されている。圧電センサ４は、作動中のスライドドア３がプロテクタ５を介して物体に接触した場合に、スライドドア３に対して変位する。挟み込み検知装置１は、圧電センサ４の変位を「物体の挟み込み」として検知する。圧電センサ４またはプロテクタ５を所定の形状の部材で圧縮した際の単位変位当たりの圧縮荷重を圧縮率として定義すれば、プロテクタ５の圧縮率は、圧電センサ４の圧縮率よりも小さく設定されている。   2 is a cross-sectional view taken along line II-II in FIG. The slide door 3 is formed of an outer plate 32 and an inner plate 33. An end portion of the outer plate 32 is overlapped with an end portion of the inner plate 33 to form a flange portion 34. The flange portion 34 holds the protector 5. The protector 5 is formed of EPDM, silicon rubber, elastomer, or the like (rubber-based foam material). The protector 5 is provided with a hollow portion 51. The hollow portion 51 accommodates the piezoelectric sensor 4. The piezoelectric sensor 4 is displaced with respect to the sliding door 3 when the operating sliding door 3 comes into contact with an object via the protector 5. The pinching detection device 1 detects the displacement of the piezoelectric sensor 4 as “object pinching”. If the compression load per unit displacement when the piezoelectric sensor 4 or the protector 5 is compressed by a member having a predetermined shape is defined as the compression rate, the compression rate of the protector 5 is set smaller than the compression rate of the piezoelectric sensor 4. Yes.

図３は、圧電センサ４を収容するプロテクタ５の構造を示す図である。プロテクタ５の後部５２（他側）は、スライドドア３のフランジ部３４に保持されている。プロテクタ５の前部５３（一側）は、物体６と接触した場合に弾性変形する。中空部５１は、プロテクタの前部５３に隣接して形成されている。中空部５１には、保持部材７（弾性部材）が設けられている。保持部材７は、ゴム系の発泡材から形成されている。保持部材７の発泡率は、プロテクタ５の発泡率よりも大きく、保持部材７は、プロテクタ５よりも変形しやすい（やわらかい）。保持部材７は、弾性変形した状態で中空部５１に設けられ、圧電センサ４に圧接している（図中点線は、弾性変形前の形状）。つまり、圧電センサ４は、保持部材７と干渉位置関係にある。これにより、中空部５１における圧電センサ４の位置が、保持部材７の弾性力により保持される。なお、保持部材７としては、図４に示す様な構造も適用可能である。   FIG. 3 is a diagram showing the structure of the protector 5 that houses the piezoelectric sensor 4. A rear portion 52 (the other side) of the protector 5 is held by the flange portion 34 of the slide door 3. The front part 53 (one side) of the protector 5 is elastically deformed when it contacts the object 6. The hollow part 51 is formed adjacent to the front part 53 of the protector. The hollow portion 51 is provided with a holding member 7 (elastic member). The holding member 7 is formed from a rubber-based foam material. The foaming rate of the holding member 7 is larger than the foaming rate of the protector 5, and the holding member 7 is more easily deformed (softer) than the protector 5. The holding member 7 is provided in the hollow portion 51 in a state of being elastically deformed, and is in pressure contact with the piezoelectric sensor 4 (a dotted line in the drawing indicates a shape before elastic deformation). That is, the piezoelectric sensor 4 is in an interference position relationship with the holding member 7. Thereby, the position of the piezoelectric sensor 4 in the hollow portion 51 is held by the elastic force of the holding member 7. As the holding member 7, a structure as shown in FIG. 4 is also applicable.

圧電センサ４は、中空部５１において、前部５３に隣接するように配置されている。これにより、スライドドア３がプロテクタ５を介して物体６に接触した場合に、圧電センサ４がスライドドア３に対してより変位しやすく、検知の精度が向上する。さらに、圧電センサ４は、プロテクタ５の前部５３と曲面５４で接触している（面接触）。これにより、圧電センサ４のプロテクタ５に対する接触部位が増え、中空部５１における圧電センサ４の位置がより確実に保持される。   The piezoelectric sensor 4 is disposed in the hollow portion 51 so as to be adjacent to the front portion 53. Thereby, when the slide door 3 contacts the object 6 via the protector 5, the piezoelectric sensor 4 is more easily displaced with respect to the slide door 3, and the detection accuracy is improved. Furthermore, the piezoelectric sensor 4 is in contact with the front portion 53 of the protector 5 at the curved surface 54 (surface contact). Thereby, the contact site | part with respect to the protector 5 of the piezoelectric sensor 4 increases, and the position of the piezoelectric sensor 4 in the hollow part 51 is hold | maintained more reliably.

以上説明した様に、本発明に係る挟み込み検知装置１によれば、中空部５１における圧電センサ４の位置が、保持部材７の弾性力によって保持される。この構造によれば、スライドドア３がプロテクタ５を介して物体６に接触しない限り、圧電センサ４はスライドドア３に対して変位することがない。このため、車両の振動等によって圧電センサ４が変位することがなく、物体６の挟み込みがより正確に検知される。   As described above, according to the pinch detection device 1 according to the present invention, the position of the piezoelectric sensor 4 in the hollow portion 51 is held by the elastic force of the holding member 7. According to this structure, the piezoelectric sensor 4 is not displaced with respect to the slide door 3 unless the slide door 3 comes into contact with the object 6 via the protector 5. For this reason, the piezoelectric sensor 4 is not displaced by vibration of the vehicle or the like, and the pinching of the object 6 is detected more accurately.

本発明に係る挟み込み検知装置１の概略的な斜視図。1 is a schematic perspective view of a pinch detection device 1 according to the present invention. 図１におけるＩＩ−ＩＩ線に沿う断面図。Sectional drawing which follows the II-II line | wire in FIG. 圧電センサ４を収容するプロテクタ５の構造を示す図。The figure which shows the structure of the protector 5 which accommodates the piezoelectric sensor 4. FIG. 保持部材７の他の実施形態を示す図。The figure which shows other embodiment of the holding member.

符号の説明Explanation of symbols

１ 挟み込み検知装置
２ 開口
３ スライドドア（開閉体）
４ 圧電センサ
５ プロテクタ（可撓部材）
６ 物体
７ 保持部材（弾性部材）
３１ 端部
５１ 中空部
５２ 後部（他側）
５３ 前部（一側）
５４ 曲面（面） 1 Pinching Detection Device 2 Opening 3 Slide Door (Opening / Closing Body)
4 Piezoelectric sensor 5 Protector (flexible member)
6 Object 7 Holding member (elastic member)
31 End part 51 Hollow part 52 Rear part (other side)
53 Front (one side)
54 Curved surface

Claims (3)

車両に形成された開口を開閉すべく作動する開閉体と、
該開閉体における作動方向の端部に保持され、中空部を有する可撓部材と、
前記中空部に収容され、作動中の前記開閉体が前記可撓部材を介して物体と接触した場合に前記開閉体に対して変位する圧電センサと、
を備え、
前記圧電センサの変位を前記物体の挟み込みとして検知する挟み込み検知装置において、
前記中空部に設けられ、該中空部における前記圧電センサの位置を弾性力により保持する弾性部材をさらに備えることを特徴とする挟み込み検知装置。 An opening and closing body that operates to open and close an opening formed in the vehicle;
A flexible member held at the end of the opening / closing body in the operating direction and having a hollow portion;
A piezoelectric sensor that is accommodated in the hollow portion and is displaced with respect to the opening / closing body when the operating opening / closing body contacts the object via the flexible member;
With
In the pinching detection device that detects displacement of the piezoelectric sensor as pinching of the object,
A pinching detection device further comprising an elastic member provided in the hollow portion and holding the position of the piezoelectric sensor in the hollow portion by an elastic force. 前記可撓部材には、前記物体と接触し弾性変形する一側と前記開閉体に保持される他側とが設けられ、
前記圧電センサは、前記一側に隣接し、前記弾性部材とは干渉位置関係にあることを特徴とする請求項１に記載の挟み込み検知装置。 The flexible member is provided with one side that comes into contact with the object and elastically deforms and the other side that is held by the opening and closing body,
The pinch detection device according to claim 1, wherein the piezoelectric sensor is adjacent to the one side and has an interference position relationship with the elastic member. 前記圧電センサは、前記一側と面で接触することを特徴とする請求項２に記載の挟み込み検知装置。   The pinch detection device according to claim 2, wherein the piezoelectric sensor is in contact with the one side at a surface.
JP2005279139A 2005-09-27 2005-09-27 Insertion detector Withdrawn JP2007093227A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008302837A (en) * 2007-06-08 2008-12-18 Aisin Seiki Co Ltd Touch sensor device for vehicle
JP2009269445A (en) * 2008-05-07 2009-11-19 Mazda Motor Corp Slide door structure of vehicle
JP2013147195A (en) * 2012-01-20 2013-08-01 Railway Technical Research Institute Door catching detector
JP2013159215A (en) * 2012-02-03 2013-08-19 Railway Technical Research Institute Door catch sensor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008302837A (en) * 2007-06-08 2008-12-18 Aisin Seiki Co Ltd Touch sensor device for vehicle
JP2009269445A (en) * 2008-05-07 2009-11-19 Mazda Motor Corp Slide door structure of vehicle
JP2013147195A (en) * 2012-01-20 2013-08-01 Railway Technical Research Institute Door catching detector
JP2013159215A (en) * 2012-02-03 2013-08-19 Railway Technical Research Institute Door catch sensor

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