JP2013221880A - Retainer for mounting sensor - Google Patents

Retainer for mounting sensor Download PDF

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JP2013221880A
JP2013221880A JP2012094370A JP2012094370A JP2013221880A JP 2013221880 A JP2013221880 A JP 2013221880A JP 2012094370 A JP2012094370 A JP 2012094370A JP 2012094370 A JP2012094370 A JP 2012094370A JP 2013221880 A JP2013221880 A JP 2013221880A
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retainer
sensor
bumper
base material
mounting
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JP5971551B2 (en
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Kenji Fukabori
兼史 深堀
Yasuhiro Kawashima
康裕 川島
Tadao Shimizu
忠夫 清水
Naoki Osumi
直紀 大角
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Denso Corp
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Denso Corp
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Abstract

PROBLEM TO BE SOLVED: To secure designability of a sensor by improving followability to a bumper.SOLUTION: A retainer includes: a retainer body which holds a sensor; and a plurality of sticking parts which are provided in the surroundings of the retainer body to fix the retainer body to a predetermined position on the inside surface of a bumper. The plurality of sticking parts are formed in a branch shape having a plurality of sticking surfaces 23B, 23C on the tip sides while maintaining connection states with the retainer body side on the base end sides by formation of notched parts 23A to penetrate in front and rear, respectively.

Description

本発明は、例えば超音波センサに代表されるセンサをバンパに取り付ける場合に用いるセンサ取付用のリテーナに関する。   The present invention relates to a sensor mounting retainer used when a sensor represented by, for example, an ultrasonic sensor is mounted on a bumper.

超音波センサに代表されるセンサをリテーナを介してバンパに取り付ける場合、リテーナには、多様なバンパの曲率に追従することが要求される。リテーナは、その貼付部において接着部材によりバンパの内側面に貼付されるのが一般的であるが、リテーナの追従性が悪いと、リテーナの弾性回復により、バンパの内側面からの剥がれや位置ズレが生じ、バンパに対するセンサの位置関係が変化する（バンパ孔とセンサとが同軸に配置されなくなる）ことで、センサの意匠性が著しく悪化してしまうからである。このような課題を解消するために、例えば下記特許文献１には、当付け面１０の裏側に多数のブロック状の突起９を形成し、各突起９の間に溝１１を形成して、個々の溝１１の深さを変えることにより、固定部材のフレキシブル性を調節可能な技術が開示されている。   When a sensor typified by an ultrasonic sensor is attached to a bumper via a retainer, the retainer is required to follow various curvatures of the bumper. The retainer is generally affixed to the inner surface of the bumper by an adhesive member at the affixing portion. However, if the retainer has poor followability, the retainer elastically recovers and the bumper is peeled off or displaced. This is because the positional relationship of the sensor with respect to the bumper changes (the bumper hole and the sensor are not arranged coaxially), and the design of the sensor is significantly deteriorated. In order to solve such a problem, for example, in Patent Document 1 below, a large number of block-shaped protrusions 9 are formed on the back side of the contact surface 10, and grooves 11 are formed between the protrusions 9. A technique that can adjust the flexibility of the fixing member by changing the depth of the groove 11 is disclosed.

特表２００１−５０２４０６号公報JP-T-2001-502406

しかし、上記特許文献１に記載された技術によっても、固定部材を当付け面１０の面内における２軸方向（Ｘ，Ｙ方向）に同時に曲げることは困難であり、多様なバンパの曲率に追従させるには十分でなかった。   However, even with the technique described in Patent Document 1, it is difficult to simultaneously bend the fixing member in the biaxial direction (X, Y direction) in the surface of the contact surface 10, and follow the curvature of various bumpers. It was n’t enough.

本発明は、上記課題に対処するためになされたものであり、その目的は、バンパへの追従性を向上させることで、センサの意匠性を確保し得るセンサ取付用のリテーナを提供することにある。   The present invention has been made to address the above-described problems, and an object of the present invention is to provide a sensor mounting retainer that can ensure the design of the sensor by improving the followability to the bumper. is there.

課題を解決するための手段及び発明の効果Means for Solving the Problems and Effects of the Invention

上記目的を達成するため、本発明は、センサの先端部がバンパに形成されたバンパ孔を通して該バンパの外側へ露出した状態となるように、センサをバンパの内側面に取り付けるセンサ取付用のリテーナであって、
リテーナは、センサを保持するリテーナ本体と、リテーナ本体の周りに設けられて該リテーナ本体をバンパの内側面の予め定められた位置に固定する複数の貼付部と、を備え、
複数の貼付部は、それぞれ表裏に貫通する切込部の形成により、基端側にてリテーナ本体側との連結状態を維持しつつ、先端側にて複数の貼付面を有する分岐形状に形成されていることを特徴とする。 In order to achieve the above object, the present invention provides a sensor mounting retainer for mounting a sensor on an inner surface of a bumper so that a tip end portion of the sensor is exposed to the outside of the bumper through a bumper hole formed in the bumper. Because
The retainer includes a retainer body that holds the sensor, and a plurality of attaching portions that are provided around the retainer body and fix the retainer body to a predetermined position on the inner surface of the bumper.
The plurality of affixing portions are formed in a branched shape having a plurality of affixing surfaces on the distal end side while maintaining a connected state with the retainer body side on the proximal end side by forming cut portions penetrating the front and back surfaces, respectively. It is characterized by.

本発明のセンサ取付用のリテーナでは、各貼付部に表裏に貫通する切込部が形成され、各貼付部は、リテーナ本体との連結状態を維持しつつ、先端側にて複数の貼付面を有する分岐形状に形成されている。   In the retainer for mounting a sensor according to the present invention, a cut portion that penetrates the front and back is formed in each pasting portion, and each pasting portion has a plurality of pasting surfaces on the tip side while maintaining a connected state with the retainer body. It has a branched shape.

このため、複数の貼付面は、それぞれリテーナ本体側の連結部位を支点として面内における２軸方向（Ｘ，Ｙ方向）に弾性変形することが可能となって、貼付面毎に２軸方向への曲げが可能となる。これにより、多様なバンパの内側面の曲率に対応・追従させることができ、センサの意匠性を十分に確保できるようになる。   For this reason, each of the pasting surfaces can be elastically deformed in the biaxial direction (X, Y direction) in the plane with the connecting portion on the retainer main body side as a fulcrum. Can be bent. As a result, the curvature of the inner surface of various bumpers can be accommodated and followed, and the design of the sensor can be sufficiently secured.

センサがリテーナを介してバンパに取り付けられた状態を示す斜視図。The perspective view which shows the state in which the sensor was attached to the bumper via the retainer. リテーナがバンパに取り付けられた状態を示す斜視図。The perspective view which shows the state in which the retainer was attached to the bumper. リテーナがバンパに取り付けられる前のセンサ、リテーナの両部品を示す斜視図。The perspective view which shows both components of a sensor and a retainer before a retainer is attached to a bumper. （Ａ）はリテーナの平面図。（Ｂ）はリテーナの正面図。（Ｃ）はリテーナの側面図。（Ｄ）はリテーナの底面図。(A) is a top view of a retainer. (B) is a front view of a retainer. (C) is a side view of the retainer. (D) is a bottom view of the retainer. 貼付部における板部の拡大図。The enlarged view of the board part in a sticking part. 板部が所定Ｒ形状のバンパの内側面に貼付された状態を示す拡大図。The enlarged view which shows the state by which the board part was affixed on the inner surface of the bumper of predetermined R shape. 両面接着テープの基材がその厚み方向に弾性的に伸びた状態を示す説明図。Explanatory drawing which shows the state which the base material of the double-sided adhesive tape extended elastically in the thickness direction. 実施例１に係る両面接着テープが貼付部の裏面に設けられた状態を示す説明図。Explanatory drawing which shows the state in which the double-sided adhesive tape which concerns on Example 1 was provided in the back surface of the sticking part. 実施例２に係る両面接着テープが貼付部の裏面に設けられた状態を示す説明図。Explanatory drawing which shows the state by which the double-sided adhesive tape which concerns on Example 2 was provided in the back surface of the sticking part. 実施例３に係る両面接着テープが貼付部の裏面に設けられた状態を示す説明図。Explanatory drawing which shows the state by which the double-sided adhesive tape which concerns on Example 3 was provided in the back surface of the sticking part.

以下、本発明の実施形態について図面を用いて説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

超音波センサ１（以下、単にセンサ１という）は、例えば圧電効果により圧電セラミック振動子を振動させて超音波を発射し、また圧電セラミック振動子に入射した超音波の振動を電気信号に変換する送受信兼用型のものであり、図１〜３に示されるように、センサ本体１１、筐体部１２などを含んで構成されている。   The ultrasonic sensor 1 (hereinafter simply referred to as the sensor 1) emits ultrasonic waves by vibrating a piezoelectric ceramic vibrator by a piezoelectric effect, for example, and converts ultrasonic vibrations incident on the piezoelectric ceramic vibrator into an electrical signal. As shown in FIGS. 1 to 3, it is configured to include a sensor main body 11, a housing portion 12, and the like.

センサ本体１１は、その先端部１１ａ（下端部）が最小径とされた段付き円筒状に形成されている。センサ本体１１の先端部１１ａには、圧電セラミック振動子を内蔵したマイクロホン１３が組み込まれている。   The sensor body 11 is formed in a stepped cylindrical shape having a tip 11a (lower end) having a minimum diameter. A microphone 13 having a built-in piezoelectric ceramic vibrator is incorporated in the distal end portion 11 a of the sensor body 11.

筐体部１２は、平面視にてセンサ本体１１を包含する大きさに形成されている。筐体部１２には、図示を省略する制御基板、充填材などが収容されている。筐体部１２の、センサ本体１１が配置される側とは反体側の側面には、図示を省略するケーブルを接続する接続端子部１４が設けられている。   The casing 12 is formed in a size that includes the sensor body 11 in plan view. The housing part 12 accommodates a control board, a filler, etc. (not shown). A connection terminal portion 14 for connecting a cable (not shown) is provided on the side surface of the housing portion 12 opposite to the side where the sensor body 11 is disposed.

また、筐体部１２の、接続端子部１４が設けられていない両側面には、センサ１が後述するセンサ取付用のリテーナ２（以下、単にリテーナ２という）に取り付けられたときに、リテーナ２の取付孔２７ａと係合し、センサ１がリテーナ２から抜け出ることを阻止する係合突起１２ａがそれぞれ設けられている。また、筐体部１２の、接続端子部１４が設けられていない前側面（図１〜３中の左方向）には、後述するリテーナ２の係合突起２８ａに係合し、センサ本体１１がその中心軸線周りに回転することを阻止する係合凹部１２ｂが設けられている。   Further, when the sensor 1 is attached to a sensor mounting retainer 2 (hereinafter simply referred to as a retainer 2) on both side surfaces of the housing portion 12 where the connection terminal portion 14 is not provided, the retainer 2. Engaging protrusions 12a are provided, which engage with the mounting holes 27a and prevent the sensor 1 from coming out of the retainer 2. Further, the front side surface (left direction in FIGS. 1 to 3) of the housing portion 12 where the connection terminal portion 14 is not provided is engaged with an engagement protrusion 28a of the retainer 2 described later, and the sensor body 11 is An engagement recess 12b that prevents rotation about the central axis is provided.

リテーナ２は、例えばポリブチンテレフタレート等の樹脂材料で形成されており、センサ本体１１がその中心軸線周りの予め定められた位置に配置されるようにセンサ１を支持するリテーナ本体２１Ａと、リテーナ本体２１Ａの周りに設けられてリテーナ本体２１Ａをバンパ３の内側面３ａの予め定められた位置に固定する複数の貼付部２１Ｂとを一体に備えている。なお、バンパ３の内側面３ａは、水平形状又は曲面形状に形成されている。   The retainer 2 is formed of a resin material such as polybutyne terephthalate, for example, and a retainer main body 21A that supports the sensor 1 so that the sensor main body 11 is disposed at a predetermined position around the central axis thereof, and the retainer main body A plurality of attaching portions 21B provided around 21A and fixing the retainer main body 21A to a predetermined position on the inner side surface 3a of the bumper 3 are integrally provided. The inner side surface 3a of the bumper 3 is formed in a horizontal shape or a curved shape.

リテーナ本体２１は、図４に示されるように、略正六角形状の底壁２５（図４（Ｄ）参照）と、その底壁２５の向かい合う辺同士を第１の辺２５ａ、第２の辺２５ｂ及び第３の辺２５ｃとした場合に、各辺に対応して立設された側壁２６ａ，２６ｂ，２６ｃと、各側壁２６ａの内側に配置された取付壁２７とを備えている。また、側壁２６ｂと側壁２６ｃとの両壁にわたって、各取付壁２７よりも高さの低い段状の載置部２８が立設されている。   As shown in FIG. 4, the retainer main body 21 includes a substantially regular hexagonal bottom wall 25 (see FIG. 4D), and the opposite sides of the bottom wall 25 are defined as a first side 25 a and a second side. In the case of 25b and the third side 25c, side walls 26a, 26b, 26c erected corresponding to the respective sides, and a mounting wall 27 arranged inside each side wall 26a are provided. In addition, a step-shaped mounting portion 28 having a height lower than that of each mounting wall 27 is erected over both walls of the side wall 26b and the side wall 26c.

底壁２５には、バンパ３に形成された円形状のバンパ孔３ｂに対応してセンサ本体１１をリテーナ本体２１の内側からバンパ孔３ｂ側へ挿通させる円形状のリテーナ孔２５ａが形成されている。取付壁２７及び載置部２８は、リテーナ孔２５ａの周縁を囲むように配置されている。   In the bottom wall 25, a circular retainer hole 25 a that allows the sensor body 11 to be inserted from the inside of the retainer body 21 to the bumper hole 3 b side is formed corresponding to the circular bumper hole 3 b formed in the bumper 3. . The mounting wall 27 and the placement portion 28 are disposed so as to surround the periphery of the retainer hole 25a.

各取付壁２７は、センサ１の筐体部１２を取り付ける機能を有し、その内幅がセンサ１の筐体部１２の外幅とほぼ同じ長さに設定され、それぞれの中間部には互いの対応位置にて貫通形状の取付孔２７ａが形成されている。各取付孔２７ａは、センサ１の筐体部１２の係合突起１２ａに係合する。   Each mounting wall 27 has a function of mounting the casing 12 of the sensor 1, and its inner width is set to be substantially the same as the outer width of the casing 12 of the sensor 1. A through-shaped mounting hole 27a is formed at the corresponding position. Each mounting hole 27 a engages with the engagement protrusion 12 a of the housing portion 12 of the sensor 1.

各載置部２８は、センサ１の筐体部１２を支持する機能を有し、一方の上面には係合突起２８ａが突出形成されている。係合突起２８ａは、センサ１の筐体部１２の係合凹部１２ｂと係合する。   Each mounting portion 28 has a function of supporting the housing portion 12 of the sensor 1, and an engaging protrusion 28 a is formed to protrude on one upper surface. The engagement protrusion 28 a engages with the engagement recess 12 b of the casing 12 of the sensor 1.

各貼付部２１Ｂは、平面視にてリテーナ本体２１の底壁２５における第２の辺２５ｂと、第３の辺２５ｃとに対応して設けられ、側壁２６ｂ，２６ｃの上端部を基端側として側壁２６ｂ，２６ｃから遠ざかる向きに延び出す減衰曲線状のアーム部２２と、アーム部２２の先端部を基端側として更に側壁２６ｂ，２６ｃから遠ざかる向きに延び出す水平面状の板部２３とを含んで構成される。具体的に、各アーム部２２及び板部２３は、底壁２５における第２の辺２５ｂと、第３の辺２５ｃとにおいてそれぞれ外向きに延び出しており、底壁２５及び４つの板部２３が所定大きさの長方形の領域Ｓ内に収まるよう（図４（Ａ）参照）、小スペース化が図られている。   Each pasting portion 21B is provided corresponding to the second side 25b and the third side 25c of the bottom wall 25 of the retainer main body 21 in plan view, with the upper end portions of the side walls 26b and 26c as the base end side. Attenuating curve-shaped arm portion 22 extending in a direction away from the side walls 26b, 26c, and a horizontal plate portion 23 extending in a direction away from the side walls 26b, 26c with the distal end portion of the arm portion 22 as the base end side. Consists of. Specifically, each arm portion 22 and the plate portion 23 extend outward at the second side 25b and the third side 25c of the bottom wall 25, respectively, and the bottom wall 25 and the four plate portions 23 are extended. Is reduced within a rectangular area S having a predetermined size (see FIG. 4A).

図５に示されるように、各アーム部２２には、表裏に貫通する開口部２２ａにより、先端側が二股に分岐して板部２３と一体に連結される分岐部２２ｂが形成されている。各板部２３の表面には、図５にて紙面の表裏方向への曲げ（撓み）を容易にするために、溝部２３ａ，２３ｂが板部２３の面内において交差する方向（図５では直交する場合を例示）に延び出すように形成されている。   As shown in FIG. 5, each arm portion 22 is formed with a branch portion 22 b that is bifurcated at the front end side and connected integrally with the plate portion 23 by an opening 22 a that penetrates the front and back. In order to facilitate bending (bending) in the front and back direction of the paper surface in FIG. 5 on the surface of each plate portion 23, the direction in which the groove portions 23a and 23b intersect in the plane of the plate portion 23 (orthogonal in FIG. 5). It is formed so as to extend to (example).

溝部２３ａ，２３ｂは同じ幅寸法を有し、溝部２３ａが基準軸Ｌ１方向に延び出し、溝部２３ｂが基準軸Ｌ２方向に延び出している。溝部２３ａ，２３ｂの形成部位は、溝部２３ａ，２３ｂが形成されていない板部２３の他の部位に比べて薄肉形状とされている。このため、板部２３は、溝部２３ａ，２３ｂを曲げ中心として図示紙面の表裏方向（基準軸Ｌ３方向、図６参照）に曲がりやすい（撓みやすい）。   The groove portions 23a and 23b have the same width, the groove portion 23a extends in the reference axis L1 direction, and the groove portion 23b extends in the reference axis L2 direction. The portions where the groove portions 23a and 23b are formed are thinner than the other portions of the plate portion 23 where the groove portions 23a and 23b are not formed. For this reason, the plate part 23 is easily bent (easily bent) in the front and back direction (reference axis L3 direction, see FIG. 6) of the illustrated paper surface with the groove parts 23a and 23b as bending centers.

各板部２３には、小切込部２３ａ１，２３ａ２，２３ｂ１〜２３ｂ３を含む切込部２３Ａが形成されている。小切込部２３ａ１，２３ａ２，２３ｂ１〜２３ｂ３は、いずれも同じ幅寸法で表裏に貫通する形態（あるいは、打ち抜く、切り抜く、切り分ける、分断する等）をなし、板部２３の面内において交差する方向に延び出す溝部２３ａ，２３ｂの経路の一部に対応して形成されている。小切込部２３ａ１，２３ａ２と小切込部２３ｂ１〜２３ｂ３とは交差する位置関係にあり、開口部２２ａは小切込部２３ｂ１から小切込部２３ａ２を経て小切込部２３ｂ３を通って板部２３の外方へ連通する。   Each plate portion 23 is formed with a cut portion 23A including small cut portions 23a1, 23a2, 23b1 to 23b3. Each of the small cut portions 23a1, 23a2, 23b1 to 23b3 penetrates the front and back with the same width dimension (or is punched, cut out, cut, divided, etc.), and intersects in the plane of the plate portion 23. Are formed corresponding to a part of the path of the groove portions 23a and 23b. The small cut portions 23a1 and 23a2 and the small cut portions 23b1 to 23b3 are in a crossing relationship, and the opening 22a passes from the small cut portion 23b1 through the small cut portion 23a2 and passes through the small cut portion 23b3. It communicates outside the section 23.

板部２３は、基端側にてアーム部２２の分岐部２２ｂと一体に連結され、小切込部２３ｂ１，２３ｂ３，２３ａ２の形成により、分岐部２２ｂでの分岐状態が維持され、先端側にて２つの貼付面２３Ｂ，２３Ｃが形成されるように分断されている。貼付面２３Ｂには、小切込部２３ｂ２の形成により、その小切込部２３ｂ２を間に挟むようにして先端側分岐部２３ｃ，２３ｄが形成されている。先端側分岐部２３ｃ，２３ｄは、接近・離間方向へ容易に弾性変形することができる。   The plate portion 23 is integrally connected to the branch portion 22b of the arm portion 22 on the base end side, and the branching state at the branch portion 22b is maintained by the formation of the small cut portions 23b1, 23b3, and 23a2, and the distal end side is The two pasting surfaces 23B and 23C are divided so as to be formed. The pasting surface 23B is formed with leading end-side branch portions 23c and 23d so as to sandwich the small cut portion 23b2 by forming the small cut portion 23b2. The front end side branch portions 23c and 23d can be easily elastically deformed in the approaching / separating direction.

これにより、貼付面２３Ｂ，２３Ｃは、それぞれバンパ３の内側面３ａに沿うように複数の基準軸方向、すなわち貼付面２３Ａ，２３Ｂの表裏方向である基準軸Ｌ３方向に加えて、貼付面２３Ａ，２３Ｂの面内方向である基準軸Ｌ１，Ｌ２方向に対しても従来技術（特表２００１−５０２４０６号公報に記載の技術）に比して大きく弾性変形することができる。   As a result, the pasting surfaces 23B and 23C are in addition to a plurality of reference axis directions along the inner side surface 3a of the bumper 3, that is, the reference axis L3 direction which is the front and back direction of the pasting surfaces 23A and 23B. Compared with the conventional technique (the technique described in Japanese Patent Laid-Open No. 2001-502406), the reference axis L1, L2 direction which is the in-plane direction of 23B can be greatly elastically deformed.

また、貼付面２３Ｃには、小切込部２３ａ２と小切込部２３ｂ３の交点位置Ｏに小切込部２３ａ２，２３ｂ３の幅寸法よりも大きい直径の円孔２３ｅが形成されている。貼付面２３Ｃの、交点位置Ｏに対応する部位はコーナ部とされている。このため、貼付面２３Ｃが弾性変形した場合には、コーナ部に応力が集中し、その周辺部位の弾性復帰力が強くなって、後述するように両面接着テープ２４の基材２４ａの弾性変形を助長する要因となりやすい。そこで、貼付面２３Ｃの、交点位置Ｏに対応する部位に円孔２３ｅを形成することで、上記応力が分散するようにした。   In addition, a circular hole 23e having a diameter larger than the width dimension of the small cut portions 23a2 and 23b3 is formed on the pasting surface 23C at the intersection position O between the small cut portion 23a2 and the small cut portion 23b3. A part of the pasting surface 23C corresponding to the intersection position O is a corner portion. For this reason, when the affixing surface 23C is elastically deformed, stress concentrates on the corner portion, and the elastic restoring force of the peripheral portion becomes strong, and the elastic deformation of the base material 24a of the double-sided adhesive tape 24 is performed as described later. It is easy to become a factor to encourage. Therefore, the stress is dispersed by forming a circular hole 23e in a portion corresponding to the intersection position O of the pasting surface 23C.

貼付面２３Ｂ，２３Ｃは、両面接着テープ２４によってバンパ３の内側面３ａに貼付される。両面接着テープ２４（接着部材）は、図６及び図７（Ａ）に示されるように、弾性変形可能な基材２４ａを含んで構成されている。基材２４ａは、貼付面２３Ｂ，２３Ｃを多様なバンパ３の内側面３ａに追従させるのに十分な柔らかさに設定されている。   The affixing surfaces 23B and 23C are affixed to the inner side surface 3a of the bumper 3 by the double-sided adhesive tape 24. As shown in FIGS. 6 and 7A, the double-sided adhesive tape 24 (adhesive member) is configured to include an elastically deformable base material 24a. The base material 24a is set to be soft enough to cause the pasting surfaces 23B and 23C to follow the inner side surface 3a of various bumpers 3.

基材２４ａの表裏面には、それぞれ粘着材２４ｂ，２４ｃが塗布され、基材２４ａは粘着材２４ｂを介して貼付面２３Ｂ，２３Ｃに貼付され、粘着材２４ｃを介してバンパ３の内側面３ａに貼付される。この場合、図８に示されるように、基材２４ａは、切込部２３Ａの形成部位を加えた貼付面２３Ｂ，２３Ｃの全面に対応して設けられている。   Adhesive materials 24b and 24c are respectively applied to the front and back surfaces of the base material 24a. The base material 24a is applied to the application surfaces 23B and 23C through the adhesive material 24b, and the inner surface 3a of the bumper 3 through the adhesive material 24c. Affixed to In this case, as shown in FIG. 8, the base material 24 a is provided corresponding to the entire surface of the pasting surfaces 23 </ b> B and 23 </ b> C including the formation site of the cut portion 23 </ b> A.

これにより、基材２４ａの接着面積を確保することができ、両面接着テープ２４の粘着力を十分に確保することができる。一方、貼付面２３Ｂ，２３Ｃは、切込部２３Ａによって分断されているため、切込部２３Ａの形成部位に対応して基材２４ａを設けるようにしても、貼付面２３Ｂ，２３Ｃが基準軸Ｌ１〜Ｌ３のいずれの方向にも弾性変形できることに変わりはなく、切込部２３Ａの形成部位を加えた貼付面２３Ｂ，２３Ｃの全面に対応して両面接着テープ２４を設けるように構成することで、板部２３に両面接着テープ２４を設ける際の生産効率を著しく高めることができる。   Thereby, the adhesion area of the base material 24a can be ensured, and the adhesive force of the double-sided adhesive tape 24 can be sufficiently ensured. On the other hand, since the pasting surfaces 23B and 23C are divided by the notch 23A, the pasting surfaces 23B and 23C are provided with the reference axis L1 even if the base material 24a is provided corresponding to the formation site of the notch 23A. It can be elastically deformed in any direction of ~ L3, and it is configured to provide the double-sided adhesive tape 24 corresponding to the entire surface of the pasting surfaces 23B and 23C including the formation portion of the cut portion 23A. The production efficiency when the double-sided adhesive tape 24 is provided on the plate portion 23 can be significantly increased.

次に、上記したリテーナ２をバンパ３に取り付ける方法について説明する。所定の治具により、リテーナ孔２５ａとバンパ孔３ｂとが同心上に位置するようにリテーナ本体２１Ａを位置決めする（図３参照）。その状態で、板部２３を押し広げれば、アーム部２２の弾性変形に伴って板部２３がバンパ３の内側面３ａに向かって回動し、板部２３を両面接着テープ２４によってバンパ３の内側面３ａに貼り付けることができる（図２参照）。リテーナ本体２１にセンサ１を組み込めば、バンパ３に対するセンサ１の組付けが完了する（図１参照）。   Next, a method for attaching the retainer 2 to the bumper 3 will be described. With a predetermined jig, the retainer body 21A is positioned so that the retainer hole 25a and the bumper hole 3b are positioned concentrically (see FIG. 3). In this state, if the plate portion 23 is spread out, the plate portion 23 rotates toward the inner side surface 3 a of the bumper 3 along with the elastic deformation of the arm portion 22, and the plate portion 23 is fixed to the bumper 3 by the double-sided adhesive tape 24. It can affix on the inner surface 3a (refer FIG. 2). When the sensor 1 is assembled in the retainer body 21, the assembly of the sensor 1 to the bumper 3 is completed (see FIG. 1).

そして、本実施例１のリテーナ２では、各貼付部２１Ｂの板部２３に表裏に貫通する切込部２１Ａが形成され、板部２３が基端側にてアーム部２２との連結状態を維持しつつ、先端側にて貼付面２３Ｂ，２３Ｃを有する分岐形状に形成されている。   And in the retainer 2 of the present Example 1, the notch part 21A penetrated in the front and back is formed in the board part 23 of each sticking part 21B, and the board part 23 maintains a connection state with the arm part 22 on the base end side. However, it is formed in the branched shape which has the sticking surfaces 23B and 23C in the front end side.

このため、貼付面２３Ｂ，２３Ｃは、それぞれアーム部２２との連結部位である分岐部２２ｂを支点として板部２３の面内における２軸方向（Ｘ，Ｙ方向）に弾性変形することが可能となって、貼付面２３Ｂ，２３Ｃ毎に２軸方向への曲げが可能となる（図６参照）。これにより、多様なバンパ３の内側面３ａの曲率に対応・追従させることができ、センサ１の意匠性が十分に確保される。   For this reason, the pasting surfaces 23B and 23C can be elastically deformed in two axial directions (X and Y directions) in the plane of the plate portion 23 with the branch portion 22b which is a connection portion with the arm portion 22 as a fulcrum. Thus, bending in the biaxial direction is possible for each of the pasting surfaces 23B and 23C (see FIG. 6). Thereby, the curvature of the inner surface 3a of various bumpers 3 can be coped with and followed, and the design of the sensor 1 is sufficiently ensured.

従来、貼付部での追従性が悪いと、図７（Ｂ）に示されるように、貼付部の弾性回復に応じて基材２４ａがその厚さ方向に弾性変形してしまい、リテーナを貼付した当初の状態に維持できない場合があったが、上記実施例１によれば、各貼付面２３Ｂ，２３Ｃでの追従性が向上する。このため、各貼付面２３Ｂ，２３Ｃでの弾性復帰力が弱められ、基材２４ａがその厚さ方向に弾性変形する度合いが小さくなるので（図７（Ａ）参照）、リテーナ２が貼付した当初の状態に維持されるようになって、センサ１の意匠性が確保されることとなる。   Conventionally, if the followability at the pasting portion is poor, as shown in FIG. 7B, the base material 24a is elastically deformed in the thickness direction in accordance with the elastic recovery of the pasting portion, and the retainer is pasted. Although there were cases where the initial state could not be maintained, according to Example 1, the followability on each of the pasting surfaces 23B and 23C is improved. For this reason, the elastic restoring force at each of the pasting surfaces 23B and 23C is weakened, and the degree of elastic deformation of the base material 24a in the thickness direction becomes small (see FIG. 7A). Thus, the design of the sensor 1 is ensured.

上記実施例１では、両面接着テープ２４の基材２４ａが板部２３の全面に対応する、略台形平面状に形成されていたが、基材２４ａの形態はこれに限らず、例えば図９の両面接着テープ１２４に示されるように、板部２３における切込部２３Ａの形成部位に対応して、基材２４ａに基材側切込部２４ａ１〜２４ａ４を形成してもよい。なお、図９に示される実施例２において、上記実施例１に対応する部材、部位には同一の符号を付して説明は省略する。   In the first embodiment, the base material 24a of the double-sided adhesive tape 24 is formed in a substantially trapezoidal flat shape corresponding to the entire surface of the plate portion 23. However, the form of the base material 24a is not limited to this, for example, FIG. As shown in the double-sided adhesive tape 124, the base material side cut portions 24 a 1 to 24 a 4 may be formed on the base material 24 a corresponding to the formation portions of the cut portions 23 A in the plate portion 23. In addition, in Example 2 shown by FIG. 9, the same code | symbol is attached | subjected to the member and site | part corresponding to the said Example 1, and description is abbreviate | omitted.

この実施例２において、基材側切込部２４ａ１〜２４ａ４は、基材２４ａの表裏を貫通する線状の切込みであり、基材側切込部２４ａ１が切込部２３Ａの小切込部２３ｂ２に対応し、基材側切込部２４ａ２が切込部２３Ａの小切込部２３ｂ３に対応し、基材側切込部２４ａ３が切込部２３Ａの小切込部２３ａ１，２３ａ２に対応し、基材側切込部２４ａ４が切込部２３Ａの小切込部２３ｂ１に対応している。この実施例２によれば、貼付面２３Ｂ，２３Ｃが基準軸Ｌ１〜Ｌ３の方向へより自在に弾性変形できるようになる。   In Example 2, the base material side cut portions 24a1 to 24a4 are linear cuts that penetrate the front and back of the base material 24a, and the base material side cut portion 24a1 is a small cut portion 23b2 of the cut portion 23A. The base material side cut portion 24a2 corresponds to the small cut portion 23b3 of the cut portion 23A, the base material side cut portion 24a3 corresponds to the small cut portions 23a1, 23a2 of the cut portion 23A, The base material side cut portion 24a4 corresponds to the small cut portion 23b1 of the cut portion 23A. According to the second embodiment, the pasting surfaces 23B and 23C can be elastically deformed more freely in the direction of the reference axes L1 to L3.

上記実施例１及び２に代えて、例えば図１０の両面接着テープ２２４に示されるように、板部２３における切込部２３Ａの非形成部位にのみ対応して基材２４ａを設けてもよい。なお、図１０に示される実施例３において、上記実施例１に対応する部材、部位には同一の符号を付して説明は省略する。   Instead of the first and second embodiments, for example, as shown in the double-sided adhesive tape 224 in FIG. 10, the base material 24 a may be provided only corresponding to the non-formed portion of the cut portion 23 </ b> A in the plate portion 23. In addition, in Example 3 shown by FIG. 10, the same code | symbol is attached | subjected to the member and site | part corresponding to the said Example 1, and description is abbreviate | omitted.

この実施例３において、基材２４ａは、貼付面２３Ｂに対応した第１基材２４Ｂと、貼付面２３Ｃに対応した第２基材２４Ｃとの二つの部分に分けられている。この実施例３によれば、貼付面２３Ｂ，２３Ｃが基準軸Ｌ１〜Ｌ３の方向へより一層自在に弾性変形できるようになる。   In Example 3, the base material 24a is divided into two parts, a first base material 24B corresponding to the pasting surface 23B and a second base material 24C corresponding to the pasting surface 23C. According to the third embodiment, the pasting surfaces 23B and 23C can be elastically deformed more freely in the direction of the reference axes L1 to L3.

なお、上記実施例１〜３では、各貼付部２１Ｂのアーム部２２に二股状の分岐部２２ｂが形成され、小切込部２３ｂ１，２３ｂ３，２３ａ２の形成により、分岐部２２ｂでの分岐状態が維持されて各先端に貼付面２３Ｂ，２３Ｃが形成されるように構成したが、分岐状態はこれに限らず、例えばアーム部２２に３つ以上に分岐する分岐部が形成され、小切込部の形成により、分岐部から先端へ向かうに従って更に細分化する分岐形態となるように構成してもよい。分岐形態が細かくなって多くの貼付面が形成されるほど、バンパへの追従性を向上させることができる。   In the first to third embodiments, a bifurcated branch portion 22b is formed in the arm portion 22 of each sticking portion 21B, and the branch state at the branch portion 22b is formed by the formation of the small cut portions 23b1, 23b3, and 23a2. The adhesive surfaces 23B and 23C are formed at the respective tips while being maintained. However, the branching state is not limited to this, for example, the arm part 22 is formed with a branching part that branches into three or more, and a small cut part. By forming, it may be configured to have a branched form that is further subdivided from the branching portion toward the tip. As the form of branching becomes finer and more sticking surfaces are formed, the followability to the bumper can be improved.

また、上記実施例１〜３では、溝部２３ａが溝部２３ａと直交し、小切込部２３ａ１，２３ａ２が小切込部２３ｂ１〜２３ｂ３と直交する位置関係となるように構成したが（図５参照）、これに限らず、例えば鋭角や鈍角で交差する位置関係となるように構成してもよい。   In the first to third embodiments, the groove 23a is orthogonal to the groove 23a, and the small notches 23a1 and 23a2 are orthogonal to the small notches 23b1 to 23b3 (see FIG. 5). However, the present invention is not limited to this, and for example, a positional relationship that intersects at an acute angle or an obtuse angle may be employed.

また、上記実施例１〜３では、本発明のセンサ取付用リテーナを超音波センサに適用した場合について説明したが、これに限らず、例えば電磁波反射型センサ等のセンサに対しても広く適用することができる。   In the first to third embodiments, the case where the sensor mounting retainer of the present invention is applied to an ultrasonic sensor has been described. However, the present invention is not limited to this, and is widely applied to sensors such as an electromagnetic wave reflection type sensor. be able to.

１ センサ（超音波センサ）
２ リテーナ（センサ取付用のリテーナ）
３ バンパ
３ａ 内側面
３ｂ バンパ孔
１１ センサ本体
２１Ａ リテーナ本体
２１Ｂ 貼付部
２２ アーム部
２２ａ 開口部
２２ｂ 分岐部
２３ 板部
２３Ａ 切込部
２３Ｂ，２３Ｃ 貼付面
２３ａ，２３ｂ 溝部
２３ａ１，２３ａ２，２３ｂ１〜２３ｂ３ 小切込部
２３ｃ，２３ｄ 先端側分岐部
２３ｅ 円孔
２４，１２４，２２４ 両面接着テープ（接着部材）
２４ａ 基材
２４ａ１〜２４ａ４ 基材側切込部
２４ｂ，２４ｃ 粘着材
Ｌ１〜Ｌ３ 基準軸 1 Sensor (Ultrasonic sensor)
2 Retainer (Retainer for sensor mounting)
3 Bumper 3a Inner side surface 3b Bumper hole 11 Sensor body 21A Retainer body 21B Affixing part 22 Arm part 22a Opening part 22b Branching part 23 Plate part 23A Cutting part 23B, 23C Affixing surface 23a, 23b Groove part 23a1, 23a2, 23b1-23b3 Small Cut portions 23c, 23d Tip side branch portion 23e Circular holes 24, 124, 224 Double-sided adhesive tape (adhesive member)
24a Base material 24a1 to 24a4 Base material side cut portion 24b, 24c Adhesive material L1 to L3 Reference axis

Claims (6)

センサの先端部がバンパに形成されたバンパ孔を通して該バンパの外側へ露出した状態となるように、前記センサを前記バンパの内側面に取り付けるセンサ取付用のリテーナであって、
前記リテーナは、前記センサを保持するリテーナ本体と、前記リテーナ本体の周りに設けられて該リテーナ本体を前記バンパの内側面の予め定められた位置に固定する複数の貼付部と、を備え、
前記複数の貼付部は、それぞれ表裏に貫通する切込部の形成により、基端側にて前記リテーナ本体側との連結状態を維持しつつ、先端側にて複数の貼付面を有する分岐形状に形成されていることを特徴とするセンサ取付用のリテーナ。 A sensor mounting retainer for attaching the sensor to the inner surface of the bumper so that the tip of the sensor is exposed to the outside of the bumper through a bumper hole formed in the bumper,
The retainer includes a retainer main body that holds the sensor, and a plurality of attaching portions that are provided around the retainer main body and fix the retainer main body to a predetermined position on the inner side surface of the bumper.
The plurality of affixing portions are formed in a branched shape having a plurality of affixing surfaces on the distal end side while maintaining a connection state with the retainer main body side on the proximal end side by forming cut portions penetrating the front and back sides, respectively. A retainer for mounting a sensor, wherein the retainer is formed. 前記複数の貼付面は、それぞれ前記バンパの内側面に沿うように複数の基準軸方向に弾性変形可能とされている請求項１に記載のセンサ取付用のリテーナ。   The sensor mounting retainer according to claim 1, wherein the plurality of pasting surfaces are elastically deformable in a plurality of reference axial directions along the inner surface of the bumper. 前記切込部は、前記各貼付面の面内において交差する方向に延び出す、複数の小切込部を含み、前記複数の小切込部の交点位置に該小切込の幅寸法よりも大きい直径の円孔が形成されている請求項１又は２に記載のセンサ取付用のリテーナ。   The cut portion includes a plurality of small cut portions that extend in a direction intersecting within the surface of each of the pasting surfaces, and at an intersection position of the plurality of small cut portions than the width dimension of the small cut. The sensor mounting retainer according to claim 1 or 2, wherein a circular hole having a large diameter is formed. 前記各貼付面は、粘着材が塗布される基材を含む接着部材によって前記バンパの内側面に貼付され、前記基材は、前記切込部の形成部位を加えた各貼付面の全面に対応して設けられている請求項１ないし３のいずれか１項に記載のセンサ取付用のリテーナ。   Each affixing surface is affixed to the inner surface of the bumper by an adhesive member that includes a base material to which an adhesive material is applied, and the base material corresponds to the entire surface of each affixing surface including the formation site of the cut portion The retainer for mounting a sensor according to any one of claims 1 to 3, wherein the retainer is attached to the sensor. 前記基材には、前記切込部の形成部位に対応して基材側切込部が形成されている請求項４に記載のセンサ取付用のリテーナ。   The retainer for mounting a sensor according to claim 4, wherein a base material side cut portion is formed in the base material corresponding to a formation site of the cut portion. 前記各貼付面は、粘着材が塗布される基材を含む接着部材によって前記バンパの内側面に貼付され、前記基材は、前記切込部の非形成部位にのみ対応して設けられている請求項１ないし３のいずれか１項に記載のセンサ取付用のリテーナ。   Each affixing surface is affixed to the inner surface of the bumper by an adhesive member including a base material to which an adhesive material is applied, and the base material is provided corresponding only to a non-formed portion of the cut portion. The retainer for attaching a sensor according to any one of claims 1 to 3.
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