JP2009236618A - Ultrasonic sensor device - Google Patents

Ultrasonic sensor device Download PDF

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Publication number
JP2009236618A
JP2009236618A JP2008081577A JP2008081577A JP2009236618A JP 2009236618 A JP2009236618 A JP 2009236618A JP 2008081577 A JP2008081577 A JP 2008081577A JP 2008081577 A JP2008081577 A JP 2008081577A JP 2009236618 A JP2009236618 A JP 2009236618A
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Japan
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ultrasonic sensor
outer peripheral
flange
bumper
sensor device
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JP2008081577A
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Japanese (ja)
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Shotaro Tanaka
昭太朗 田中
Hiroyuki Kani
博之 可児
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Denso Corp
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Denso Corp
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Priority to JP2008081577A priority Critical patent/JP2009236618A/en
Priority to CN200910129128A priority patent/CN101545970A/en
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  • Transducers For Ultrasonic Waves (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ultrasonic sensor device capable of preventing deterioration in designability. <P>SOLUTION: An ultrasonic sensor device is provided with a bezel 20 having a body part 21 and a flange part 22 and an ultrasonic sensor 10 held by the bezel 20. The flange part 22 having an opening part 23 which exposes the vibration surface 11 of the ultrasonic sensor 10 to the outside includes: a tip surface 24 protruding from the surface of a bumper 100 to the outside; a flange surface 25 formed inclined to the tip surface 24, and contacting the opening edge part of a through-hole 101; an outer peripheral surface 26 formed between the outer periphery part of the tip surface 24 and the outer periphery part of the flange surface 25; a chamfered surface 27 formed by chamfering at least the smallest part of the angle θ1 formed between the outer peripheral surface 26 and the flange surface 25 out of an edge part 28 formed by the outer peripheral surface 26 and the flange surface 25; and a paint film 22a formed by using a paint on the surface of the tip surface 24, the outer peripheral surface 26, and the chamfered surface 27. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、車両のバンパに取り付けられる超音波センサ装置に関する。   The present invention relates to an ultrasonic sensor device attached to a bumper of a vehicle.

特許文献１には、水平方向を向いたバンパ表面に取り付けられる従来の超音波センサ装置が開示されている。この超音波センサ装置は、超音波の発信及び受信を行う超音波センサと、超音波センサを保持するベゼルとを有している。超音波センサ装置は、超音波センサの振動面が水平方向を向くように取り付けられる。
特開２００６−３３７０２８号公報 Patent Document 1 discloses a conventional ultrasonic sensor device that is attached to a bumper surface facing in the horizontal direction. This ultrasonic sensor device has an ultrasonic sensor that transmits and receives ultrasonic waves and a bezel that holds the ultrasonic sensor. The ultrasonic sensor device is attached so that the vibration surface of the ultrasonic sensor faces the horizontal direction.
JP 2006-337028 A

図５は、水平方向よりも下方を向いたバンパ表面に取り付けられる超音波センサ装置２００の構成を示している。図５（ａ）は超音波センサ装置２００の正面図であり、図５（ｂ）は超音波センサ装置２００の側面図である。図５（ａ）、（ｂ）に示すように、超音波センサ装置２００は、超音波センサ２１０とベゼル２２０とを有している。ベゼル２２０は、超音波センサ２１０を保持し、バンパに形成された貫通孔に外側から挿入される胴体部２２１と、貫通孔よりも大径に形成されてバンパ表面から外側に突出するフランジ部２２２とを有している。フランジ部２２２は、超音波センサ２１０の振動面２１１を外部に露出させる開口部を有する先端面２２３と、貫通孔の開口縁部に当接するフランジ面２２４と、先端面２２３の外周部とフランジ面２２４の外周部との間に形成された外周面２２５とを備えている。フランジ面２２４は、水平方向よりも下方を向いたバンパ表面に取り付けられたときに振動面２１１が水平方向を向くように、先端面２２３に対して傾斜して形成されている。外周面２２５は、バンパ表面に対して連続的かつ滑らかに接続されるように、先端面２２３から離れるほど径が大きくなるように形成されている。フランジ部２２２のうちバンパ表面から露出する先端面２２３及び外周面２２５の表面には、バンパと同色の塗料により塗装された塗膜が形成されている。   FIG. 5 shows a configuration of the ultrasonic sensor device 200 attached to the bumper surface facing downward from the horizontal direction. FIG. 5A is a front view of the ultrasonic sensor device 200, and FIG. 5B is a side view of the ultrasonic sensor device 200. As shown in FIGS. 5A and 5B, the ultrasonic sensor device 200 includes an ultrasonic sensor 210 and a bezel 220. The bezel 220 holds the ultrasonic sensor 210 and is inserted into a through hole formed in the bumper from the outside, and a flange portion 222 that is formed larger in diameter than the through hole and protrudes outward from the bumper surface. And have. The flange portion 222 includes a front end surface 223 having an opening that exposes the vibration surface 211 of the ultrasonic sensor 210 to the outside, a flange surface 224 that contacts the opening edge of the through hole, and an outer peripheral portion and a flange surface of the front end surface 223. And an outer peripheral surface 225 formed between the outer peripheral portion of 224. The flange surface 224 is formed to be inclined with respect to the front end surface 223 so that the vibration surface 211 faces the horizontal direction when attached to the bumper surface facing downward from the horizontal direction. The outer peripheral surface 225 is formed so that the diameter becomes larger as it is away from the front end surface 223 so as to be continuously and smoothly connected to the bumper surface. On the surfaces of the front end surface 223 and the outer peripheral surface 225 exposed from the bumper surface of the flange portion 222, a coating film coated with the same color paint as the bumper is formed.

ところがこの構成では、外周面２２５とフランジ面２２４とにより形成されるエッジ部２２６の先端角度が鋭角となり、特に、図５（ａ）のＸ部及び図５（ｂ）のＹ部において先端角度が小さく（鋭く）なる。先端角度が小さくなるとエッジ部２２６に反りが生じ易くなるため、外周面２２５には凹部が形成され易くなる。したがって、フランジ部２２２を塗装した際に、外周面２２５に塗料溜まりが生じ易くなる。また、先端角度が小さくなるとエッジ部２２６に欠けが生じ易くなるため、塗装後の外周面２２５には欠けを起点とした塗膜剥がれが生じ易くなる。超音波センサ装置２００がバンパに取り付けられた状態では、外周面２２５は意匠面として外部に露出するため、塗料溜まりや塗膜剥がれが外周面２２５に生じると、超音波センサ装置２００の意匠性が低下してしまうという問題が生じる。   However, in this configuration, the tip angle of the edge portion 226 formed by the outer peripheral surface 225 and the flange surface 224 becomes an acute angle, and in particular, the tip angle is the X portion in FIG. 5A and the Y portion in FIG. 5B. It becomes small (sharp). Since the edge portion 226 is likely to be warped when the tip angle is small, a concave portion is easily formed on the outer peripheral surface 225. Therefore, when the flange portion 222 is painted, a paint pool is likely to be generated on the outer peripheral surface 225. Further, since the edge portion 226 is likely to be chipped when the tip angle is small, coating film peeling starting from the chipping is likely to occur on the outer peripheral surface 225 after coating. In the state where the ultrasonic sensor device 200 is attached to the bumper, the outer peripheral surface 225 is exposed to the outside as a design surface. Therefore, if paint pool or coating film peeling occurs on the outer peripheral surface 225, the design of the ultrasonic sensor device 200 is improved. The problem of deteriorating arises.

本発明の目的は、意匠性の低下を防止できる超音波センサ装置を提供することにある。   The objective of this invention is providing the ultrasonic sensor apparatus which can prevent the fall of the designability.

本発明は上記目的を達成するために、以下の技術的手段を採用する。   In order to achieve the above object, the present invention employs the following technical means.

請求項１に記載の発明は、車両のバンパに形成された貫通孔にバンパ表面側から挿入される胴体部と、貫通孔よりも大径に形成され、バンパ表面から外側に突出するフランジ部とを備えたベゼルと、ベゼルに保持され、超音波の発信及び受信のうち少なくとも一方を行う超音波センサとを有する超音波センサ装置であって、フランジ部は、ベゼルの軸方向にほぼ垂直に形成され、超音波センサの振動面を外部に露出させる開口部を有し、バンパ表面から外側に突出する先端面と、先端面に対して傾斜して形成され、貫通孔の開口縁部に当接するフランジ面と、先端面の外周部とフランジ面の外周部との間に形成された外周面と、外周面とフランジ面とにより形成される環状のエッジ部のうち、少なくとも外周面とフランジ面とのなす角度の最も小さい部分が面取りされて形成された面取り面と、先端面、外周面及び面取り面の表面に塗料を用いて形成された塗膜とを備えていることを特徴とする超音波センサ装置である。   According to a first aspect of the present invention, there is provided a fuselage portion that is inserted from a bumper surface side into a through hole formed in a bumper of a vehicle, and a flange portion that is formed to have a larger diameter than the through hole and projects outward from the bumper surface. And an ultrasonic sensor device that is held by the bezel and performs at least one of transmission and reception of ultrasonic waves, and the flange portion is formed substantially perpendicular to the axial direction of the bezel An opening that exposes the vibration surface of the ultrasonic sensor to the outside, a tip surface that protrudes outward from the bumper surface, and a slant formed with respect to the tip surface, and abuts against the opening edge of the through hole At least the outer peripheral surface and the flange surface among the flange surface, the outer peripheral surface formed between the outer peripheral portion of the front end surface and the outer peripheral portion of the flange surface, and the annular edge portion formed by the outer peripheral surface and the flange surface Of the angle formed by And the chamfered surface of a small portion is formed is chamfered, the distal end surface is an ultrasonic sensor device, characterized in that it comprises a coating film formed by using the coating material on the surface of the outer peripheral surface and the chamfered surface.

これによると、エッジ部のうち少なくとも外周面とフランジ面とのなす角度の最も小さい部分に面取り面が形成される。このため、エッジ部のうち反りや欠けが最も生じ易い部分において反りや欠けを防止できるので、外周面での塗料溜まりや塗膜剥がれが生じ難くなる。したがって、超音波センサ装置の意匠性の低下を防止できる。   According to this, a chamfered surface is formed in at least a portion of the edge portion having the smallest angle formed by the outer peripheral surface and the flange surface. For this reason, since a curvature and a chip | tip can be prevented in the part which a curvature and a chip | tip generate | occur | produce most easily among edge parts, the coating material pool and coating film peeling on an outer peripheral surface become difficult to occur. Therefore, it is possible to prevent the design of the ultrasonic sensor device from being deteriorated.

請求項２に記載の発明は、面取り面は、エッジ部の全周に形成されていることを特徴としている。これにより、エッジ部の全周において外周面での塗料溜まりや塗膜剥がれを防止できる。   The invention according to claim 2 is characterized in that the chamfered surface is formed on the entire circumference of the edge portion. Thereby, it is possible to prevent paint accumulation and coating film peeling on the outer peripheral surface in the entire periphery of the edge portion.

請求項３に記載の発明は、外周面は、先端面から離れるほど径が大きくなるように形成されていることを特徴としている。このような構成では、エッジ部での外周面とフランジ面とのなす角度が小さくなるため、エッジ部での反りや欠けが特に生じ易くなるおそれがある。したがって、上記発明を適用することによってより高い効果が得られる。   The invention according to claim 3 is characterized in that the outer peripheral surface is formed such that the diameter increases as the distance from the distal end surface increases. In such a configuration, since the angle formed between the outer peripheral surface and the flange surface at the edge portion becomes small, there is a possibility that warping or chipping at the edge portion is particularly likely to occur. Therefore, a higher effect can be obtained by applying the above invention.

請求項４に記載の発明のように、貫通孔は、バンパ表面が水平方向よりも下方を向いた部分に形成され、ベゼルは、軸方向がほぼ水平になるように貫通孔に取り付けられ、エッジ部のうち角度の最も小さい部分は、フランジ部の下端部に形成されるようにしてもよい。   According to a fourth aspect of the present invention, the through hole is formed in a portion where the bumper surface faces downward from the horizontal direction, and the bezel is attached to the through hole so that the axial direction is substantially horizontal, and the edge The portion with the smallest angle among the portions may be formed at the lower end portion of the flange portion.

（第１実施形態）
本発明の第１実施形態について図１乃至図４を用いて説明する。図１及び図２は、本実施形態における超音波センサ装置１を車両のバンパ１００に取り付けた取付け状態を示している。図１は正面図であり、図２は側面図である。図３は、本実施形態における超音波センサ装置１のベゼル２０の構成を示している。図３（ａ）は正面図であり、図３（ｂ）は側面図である。 (First embodiment)
A first embodiment of the present invention will be described with reference to FIGS. 1 and 2 show an attached state in which the ultrasonic sensor device 1 according to this embodiment is attached to a bumper 100 of a vehicle. 1 is a front view, and FIG. 2 is a side view. FIG. 3 shows the configuration of the bezel 20 of the ultrasonic sensor device 1 according to this embodiment. FIG. 3A is a front view, and FIG. 3B is a side view.

図１乃至図３に示すように、超音波センサ装置１は、水平方向よりも下方を向いたバンパ１００に取り付けられている。超音波センサ装置１は、超音波の発信及び受信（又はいずれか一方）を行う超音波センサ１０と、超音波センサ１０を保持する中空のベゼル２０とを有している。   As shown in FIGS. 1 to 3, the ultrasonic sensor device 1 is attached to a bumper 100 that faces downward from the horizontal direction. The ultrasonic sensor device 1 includes an ultrasonic sensor 10 that transmits and / or receives ultrasonic waves (or one of them) and a hollow bezel 20 that holds the ultrasonic sensor 10.

超音波センサ１０は、例えば樹脂製の筐体１２を有している。筐体１２は、略円筒状の円筒部１４と、円筒部１４の一端側に連結された略直方体状の箱状部１３とを有している。円筒部１４は、超音波センサ１０の超音波振動子を保持しており、超音波振動子の振動面１１を他端側の開口部から外部に露出させるようになっている。箱状部１３内には、超音波振動子に駆動電圧を印加するとともに、超音波振動子での逆起電力により生じた電圧を処理する処理回路基板が格納されている。   The ultrasonic sensor 10 has a housing 12 made of resin, for example. The housing 12 includes a substantially cylindrical cylindrical portion 14 and a substantially rectangular parallelepiped box-shaped portion 13 connected to one end side of the cylindrical portion 14. The cylindrical portion 14 holds the ultrasonic transducer of the ultrasonic sensor 10 and exposes the vibration surface 11 of the ultrasonic transducer to the outside from the opening on the other end side. Stored in the box-shaped portion 13 is a processing circuit board that applies a driving voltage to the ultrasonic transducer and processes a voltage generated by a counter electromotive force in the ultrasonic transducer.

箱状部１３の上部には、円筒部１４の側面に沿うように延設された延長部１５が設けられている。延長部１５の先端部には、爪部１６が形成されている。また、箱状部１３の下部には、後述するベゼル２０の爪部２９により係止される被係止部１７が形成されている。   An extension portion 15 extending along the side surface of the cylindrical portion 14 is provided on the upper portion of the box-shaped portion 13. A claw portion 16 is formed at the distal end portion of the extension portion 15. A locked portion 17 that is locked by a claw portion 29 of the bezel 20 described later is formed at the lower portion of the box-shaped portion 13.

ベゼル２０は例えば樹脂製であり、射出成形法を用いて形成されている。ベゼル２０は、バンパ１００に形成された貫通孔１０１にバンパ１００表面側（外側）から挿入される略円筒状の胴体部２１と、胴体部２１と一体的に成形され、貫通孔１０１よりも大径に形成されてバンパ１００表面から外側に突出するフランジ部２２とを有している。胴体部２１内には、超音波センサ１０の円筒部１４が挿入されるようになっている。胴体部２１の上部には、超音波センサ１０の爪部１６により係止される凹部（図示せず）が形成されている。胴体部２１の下部には、超音波センサ１０の箱状部１３の側面に沿うように延設された延長部３０が設けられている。延長部３０の先端部には、箱状部１３に設けられた被係止部１７に係止する爪部２９が形成されている。   The bezel 20 is made of resin, for example, and is formed using an injection molding method. The bezel 20 is integrally formed with the body portion 21 and the substantially cylindrical body portion 21 that is inserted into the through hole 101 formed in the bumper 100 from the surface side (outside) of the bumper 100, and is larger than the through hole 101. It has a flange portion 22 that is formed in a diameter and projects outward from the surface of the bumper 100. The cylindrical portion 14 of the ultrasonic sensor 10 is inserted into the body portion 21. A concave portion (not shown) that is locked by the claw portion 16 of the ultrasonic sensor 10 is formed on the upper portion of the body portion 21. An extension 30 that extends along the side surface of the box-shaped portion 13 of the ultrasonic sensor 10 is provided below the body portion 21. A claw portion 29 that is locked to the locked portion 17 provided in the box-shaped portion 13 is formed at the distal end portion of the extension portion 30.

フランジ部２２は、超音波センサ１０の振動面１１を外部に露出させる開口部２３を有する円環状の先端面２４と、先端面２４に対向して設けられ、バンパ１００表面において貫通孔１０１の開口縁部に当接するフランジ面２５とを備えている。先端面２４は、ベゼル２０の軸方向（図中左右方向）にほぼ垂直に形成されており、例えば振動面１１と同一平面内に配置されている。フランジ面２５は、先端面２４に対して所定の傾斜角度で傾斜して形成されている。フランジ面２５の先端面２４に対する傾斜角度は、超音波センサ装置１が取り付けられるバンパ１００表面の鉛直方向に対する傾斜角度にほぼ等しくなっている。これにより、超音波センサ装置１は、水平方向よりも下方を向いたバンパ１００表面に、振動面１１及び先端面２４が水平方向を向くように取り付けられるようになっている。フランジ面２５が先端面２４に対して傾斜していることにより、ベゼル２０のフランジ部２２は、下端部に位置する図３（ａ）のＡ部及び図３（ｂ）のＢ部近傍で最も厚肉になっている。   The flange portion 22 is provided facing the tip surface 24 and an annular tip surface 24 having an opening 23 that exposes the vibration surface 11 of the ultrasonic sensor 10 to the outside, and the opening of the through hole 101 on the surface of the bumper 100. And a flange surface 25 that abuts the edge. The front end surface 24 is formed substantially perpendicular to the axial direction of the bezel 20 (the left-right direction in the drawing), and is disposed, for example, in the same plane as the vibration surface 11. The flange surface 25 is formed to be inclined at a predetermined inclination angle with respect to the distal end surface 24. The inclination angle of the flange surface 25 with respect to the distal end surface 24 is substantially equal to the inclination angle with respect to the vertical direction of the surface of the bumper 100 to which the ultrasonic sensor device 1 is attached. As a result, the ultrasonic sensor device 1 is attached to the surface of the bumper 100 facing downward in the horizontal direction so that the vibration surface 11 and the tip surface 24 are directed in the horizontal direction. Since the flange surface 25 is inclined with respect to the front end surface 24, the flange portion 22 of the bezel 20 is most proximate to the portion A in FIG. 3A and the portion B in FIG. It is thick.

またフランジ部２２は、先端面２４の外周部とフランジ面２５の外周部との間に形成された外周面２６を備えている。外周面２６は、先端面２４から離れるほどフランジ部２２の径が大きくなるように形成されており、例えば外周側に凸となるように湾曲している。   The flange portion 22 includes an outer peripheral surface 26 formed between the outer peripheral portion of the front end surface 24 and the outer peripheral portion of the flange surface 25. The outer peripheral surface 26 is formed such that the diameter of the flange portion 22 increases as the distance from the distal end surface 24 increases. For example, the outer peripheral surface 26 is curved so as to be convex toward the outer peripheral side.

図４は、図３（ｂ）のＢ部を拡大して示す図である。図４に示すように、外周面２６とフランジ面２５とにより形成されるエッジ部２８近傍には、当該エッジ部２８での先端角度を大きくするために断面直線状に面取りされた面取り面２７が形成されている。面取り面２７は、エッジ部２８において外周面２６とフランジ面２５とのなす角度θ１が最も小さくなる図３（ｂ）のＢ部（図３（ａ）のＡ部）には少なくとも形成されており、本例ではフランジ部２２のエッジ部２８全周に形成されている。面取り面２７が形成されていることによって、エッジ部２８での先端角度は、面取り面２７とフランジ面２５とのなす角度θ２となり、外周面２６とフランジ面２５とのなす角度θ１よりも大きくなる。面取り面２７は、例えば角度θ２が９０°に近づくように形成される。   FIG. 4 is an enlarged view of a portion B in FIG. As shown in FIG. 4, in the vicinity of the edge portion 28 formed by the outer peripheral surface 26 and the flange surface 25, there is a chamfered surface 27 chamfered in a straight section in order to increase the tip angle at the edge portion 28. Is formed. The chamfered surface 27 is formed at least in the B portion in FIG. 3B (A portion in FIG. 3A) where the angle θ1 formed by the outer peripheral surface 26 and the flange surface 25 is the smallest in the edge portion 28. In this example, it is formed on the entire periphery of the edge portion 28 of the flange portion 22. Since the chamfered surface 27 is formed, the tip angle at the edge portion 28 is an angle θ2 formed by the chamfered surface 27 and the flange surface 25, and is larger than an angle θ1 formed by the outer peripheral surface 26 and the flange surface 25. . The chamfered surface 27 is formed so that the angle θ2 approaches 90 °, for example.

フランジ部２２のうちバンパ１００表面から外側に露出する先端面２４、外周面２６及び面取り面２７は、例えばバンパ１００と同色の塗料を用いて塗装されている。これにより、先端面２４、外周面２６及び面取り面２７の表面には塗膜２２ａが形成されている。   The front end surface 24, the outer circumferential surface 26, and the chamfered surface 27 exposed to the outside from the surface of the bumper 100 in the flange portion 22 are painted using, for example, the same color paint as the bumper 100. Thereby, the coating film 22 a is formed on the surfaces of the tip surface 24, the outer peripheral surface 26 and the chamfered surface 27.

ベゼル２０の胴体部２１の外周には、複数の金属製のばね部材４０が装着されている。ばね部材４０は略への字状の断面形状を有しており、胴体部２１の外表面から外周側に突出する頂上部を備えている。ばね部材４０は、ベゼル２０をバンパ１００に取り付けた際に、バンパ１００の貫通孔１０１の内側開口縁部に当接してベゼル２０を固定するようになっている。   A plurality of metal spring members 40 are mounted on the outer periphery of the body portion 21 of the bezel 20. The spring member 40 has a substantially U-shaped cross-sectional shape, and includes a top portion protruding from the outer surface of the body portion 21 to the outer peripheral side. When the bezel 20 is attached to the bumper 100, the spring member 40 contacts the inner opening edge of the through hole 101 of the bumper 100 and fixes the bezel 20.

バンパ１００に超音波センサ装置１を搭載するときには、まず、ばね部材４０が装着されたベゼル２０の胴体部２１をバンパ１００の外側から貫通孔１０１内に挿入する。このときベゼル２０は、フランジ部２２が下端部側ほど厚肉になるように挿入される。フランジ部２２を外側から押圧して胴体部２１を貫通孔１０１内に進入させると、ばね部材４０は貫通孔１０１の内周端に押されて径内方向に変形し、貫通孔１０１を通過すると弾性力で径外方向に復元する。これにより、ベゼル２０はバンパ１００の貫通孔１０１に対して固定される。   When the ultrasonic sensor device 1 is mounted on the bumper 100, first, the body portion 21 of the bezel 20 to which the spring member 40 is attached is inserted into the through hole 101 from the outside of the bumper 100. At this time, the bezel 20 is inserted so that the flange portion 22 becomes thicker toward the lower end side. When the body 22 is pushed into the through hole 101 by pressing the flange 22 from the outside, the spring member 40 is pushed by the inner peripheral end of the through hole 101 and deformed in the radial direction, and passes through the through hole 101. Restores radially outward with elastic force. Thereby, the bezel 20 is fixed to the through hole 101 of the bumper 100.

次に、バンパ１００の内側から、超音波センサ１０の円筒部１４をベゼル２０の胴体部２１内に押し込んで挿設する。これにより、超音波センサ１０の爪部１６が胴体部２１に形成された凹部に係止されるとともに、胴体部２１の爪部２９が超音波センサ１０の被係止部１７に係止されて、超音波センサ１０がベゼル２０に対して固定される。すなわち超音波センサ１０は、ベゼル２０を介してバンパ１００の貫通孔１０１に対して固定される。   Next, the cylindrical portion 14 of the ultrasonic sensor 10 is pushed into the body portion 21 of the bezel 20 from the inside of the bumper 100 and inserted. As a result, the claw portion 16 of the ultrasonic sensor 10 is locked to the concave portion formed in the body portion 21, and the claw portion 29 of the body portion 21 is locked to the locked portion 17 of the ultrasonic sensor 10. The ultrasonic sensor 10 is fixed to the bezel 20. That is, the ultrasonic sensor 10 is fixed to the through hole 101 of the bumper 100 via the bezel 20.

本実施形態では、エッジ部２８のうち少なくとも外周面２６とフランジ面２５とのなす角度の最も小さい下端部に面取り面２７が形成されている。これにより、フランジ部２２下端部近傍でのエッジ部２８の尖りが緩和されるため、エッジ部２８での反りが生じ難くなる。このため、外周面２６に凹部が形成され難くなるので、フランジ部２２を塗装した際の塗料溜まりが生じ難くなる。   In the present embodiment, a chamfered surface 27 is formed at the lower end portion of the edge portion 28 having the smallest angle formed by at least the outer peripheral surface 26 and the flange surface 25. Thereby, since the sharpness of the edge part 28 in the vicinity of the lower end part of the flange part 22 is relieved, the warp at the edge part 28 hardly occurs. For this reason, since it becomes difficult to form a recessed part in the outer peripheral surface 26, it becomes difficult to produce the coating material pool at the time of coating the flange part 22. FIG.

また、フランジ部２２下端部近傍でのエッジ部２８の尖りが緩和されることにより、エッジ部２８での欠けが生じ難くなる。このため、外周面２６には欠けを起点とした塗膜剥がれが生じ難くなる。   Further, since the sharpness of the edge portion 28 in the vicinity of the lower end portion of the flange portion 22 is alleviated, chipping at the edge portion 28 is difficult to occur. For this reason, it is difficult for the outer peripheral surface 26 to peel off the coating starting from the chip.

このように本実施形態によれば、フランジ部２２下端部近傍において外周面２６での塗料溜まりや塗膜剥がれの発生を防止できるため、超音波センサ装置１の意匠性の低下を防止できる。   As described above, according to the present embodiment, it is possible to prevent the accumulation of paint and the peeling of the coating film on the outer peripheral surface 26 in the vicinity of the lower end portion of the flange portion 22, thereby preventing the design of the ultrasonic sensor device 1 from being deteriorated.

さらに本実施形態では、面取り面２７がエッジ部２８の全周に形成されているため、エッジ部２８の全周において外周面２６での塗料溜まりや塗膜剥がれの発生を防止できる。   Furthermore, in this embodiment, since the chamfered surface 27 is formed on the entire periphery of the edge portion 28, it is possible to prevent the occurrence of paint accumulation and coating film peeling on the outer peripheral surface 26 on the entire periphery of the edge portion 28.

また、超音波センサ装置１は一般に人の目の位置よりも下方に取り付けられるため、フランジ部２２下端部近傍の面取り面２７は人の視界に対して死角に位置する。したがって、仮にフランジ部２２下端部近傍の面取り面２７において塗料溜まりや塗膜剥がれが生じたとしても、超音波センサ装置１の意匠性の低下を抑制できる。   In addition, since the ultrasonic sensor device 1 is generally attached below the position of the human eye, the chamfered surface 27 near the lower end of the flange 22 is positioned at a blind spot with respect to the human field of view. Therefore, even if paint accumulation or coating film peeling occurs on the chamfered surface 27 in the vicinity of the lower end portion of the flange portion 22, it is possible to suppress a decrease in design of the ultrasonic sensor device 1.

さらに本実施形態では、外周面２６が、先端面２４から離れるほどフランジ部２２の径が大きくなるように形成されている。このような構成では、エッジ部２８での外周面２６とフランジ面２５とのなす角度θ１が小さくなるため、エッジ部２８での反りや欠けが特に生じ易くなってしまうおそれがある。したがって、本実施形態のようにエッジ部２８に面取り面２７を形成して塗料溜まりや塗膜剥がれを防止することによって、超音波センサ装置１の意匠性低下を防止する効果がより大きくなる。   Furthermore, in this embodiment, the outer peripheral surface 26 is formed such that the diameter of the flange portion 22 increases as the distance from the distal end surface 24 increases. In such a configuration, since the angle θ1 formed between the outer peripheral surface 26 and the flange surface 25 at the edge portion 28 becomes small, there is a possibility that warping or chipping at the edge portion 28 is particularly likely to occur. Therefore, by forming the chamfered surface 27 on the edge portion 28 as in the present embodiment to prevent paint accumulation and coating film peeling, the effect of preventing deterioration of the design of the ultrasonic sensor device 1 is further increased.

（その他の実施形態）
上記実施形態では、面取り面２７がエッジ部２８の全周に形成されているが、フランジ部２２の下端部近傍のみに面取り面２７を形成してもよい。 (Other embodiments)
In the above embodiment, the chamfered surface 27 is formed on the entire circumference of the edge portion 28, but the chamfered surface 27 may be formed only in the vicinity of the lower end portion of the flange portion 22.

第１実施形態における超音波センサ装置を車両のバンパに取り付けた取付け状態を示す正面図である。It is a front view which shows the attachment state which attached the ultrasonic sensor apparatus in 1st Embodiment to the bumper of the vehicle. 第１実施形態における超音波センサ装置を車両のバンパに取り付けた取付け状態を示す側面図である。It is a side view which shows the attachment state which attached the ultrasonic sensor apparatus in 1st Embodiment to the bumper of the vehicle. 第１実施形態における超音波センサ装置のベゼルの構成を示す図である。It is a figure which shows the structure of the bezel of the ultrasonic sensor apparatus in 1st Embodiment. 図３（ｂ）のＢ部を拡大して示す図である。It is a figure which expands and shows the B section of FIG.3 (b). 水平方向よりも下方を向いたバンパ表面に取り付けられる超音波センサ装置の構成を示す図である。It is a figure which shows the structure of the ultrasonic sensor apparatus attached to the bumper surface which faced the downward direction rather than the horizontal direction.

符号の説明Explanation of symbols

１ 超音波センサ装置
１０ 超音波センサ
１１ 振動面
２０ ベゼル
２１ 胴体部
２２ フランジ部
２２ａ 塗膜
２３ 開口部
２４ 先端面
２５ フランジ面
２６ 外周面
２７ 面取り面
２８ エッジ部
１００ バンパ
１０１ 貫通孔 DESCRIPTION OF SYMBOLS 1 Ultrasonic sensor apparatus 10 Ultrasonic sensor 11 Vibrating surface 20 Bezel 21 Body part 22 Flange part 22a Coating film 23 Opening part 24 Front end surface 25 Flange surface 26 Outer peripheral surface 27 Chamfering surface 28 Edge part 100 Bumper 101 Through-hole

Claims (4)

車両のバンパに形成された貫通孔に前記バンパ表面側から挿入される胴体部と、前記貫通孔よりも大径に形成され、前記バンパ表面から外側に突出するフランジ部とを備えたベゼルと、前記ベゼルに保持され、超音波の発信及び受信のうち少なくとも一方を行う超音波センサとを有する超音波センサ装置であって、
前記フランジ部は、
前記ベゼルの軸方向にほぼ垂直に形成され、前記超音波センサの振動面を外部に露出させる開口部を有し、前記バンパ表面から外側に突出する先端面と、
前記先端面に対して傾斜して形成され、前記貫通孔の開口縁部に当接するフランジ面と、
前記先端面の外周部と前記フランジ面の外周部との間に形成された外周面と、
前記外周面と前記フランジ面とにより形成される環状のエッジ部のうち、少なくとも前記外周面と前記フランジ面とのなす角度の最も小さい部分が面取りされて形成された面取り面と、
前記先端面、前記外周面及び前記面取り面の表面に形成された塗膜とを備えていることを特徴とする超音波センサ装置。 A bezel having a body portion inserted from a bumper surface side into a through hole formed in a bumper of a vehicle, and a flange portion formed to have a larger diameter than the through hole and projecting outward from the bumper surface; An ultrasonic sensor device having an ultrasonic sensor held by the bezel and performing at least one of transmission and reception of ultrasonic waves,
The flange portion is
A front end surface that is formed substantially perpendicular to the axial direction of the bezel, has an opening that exposes the vibration surface of the ultrasonic sensor to the outside, and protrudes outward from the bumper surface;
A flange surface that is formed to be inclined with respect to the tip surface, and abuts against an opening edge of the through hole;
An outer peripheral surface formed between the outer peripheral portion of the tip surface and the outer peripheral portion of the flange surface;
Of the annular edge portion formed by the outer peripheral surface and the flange surface, a chamfered surface formed by chamfering at least the smallest angle formed by the outer peripheral surface and the flange surface;
An ultrasonic sensor device comprising: the tip surface, the outer peripheral surface, and a coating film formed on the surface of the chamfered surface. 前記面取り面は、前記エッジ部の全周に形成されていることを特徴とする請求項１に記載の超音波センサ装置。   The ultrasonic sensor device according to claim 1, wherein the chamfered surface is formed on the entire circumference of the edge portion. 前記外周面は、前記先端面から離れるほど径が大きくなるように形成されていることを特徴とする請求項１又は２に記載の超音波センサ装置。   The ultrasonic sensor device according to claim 1, wherein the outer peripheral surface is formed to have a diameter that increases with distance from the tip surface. 前記貫通孔は、前記バンパ表面が水平方向よりも下方を向いた部分に形成され、
前記ベゼルは、軸方向がほぼ水平になるように前記貫通孔に取り付けられ、
前記エッジ部のうち前記角度の最も小さい部分は、前記フランジ部の下端部に形成されていることを特徴とする請求項１乃至３のいずれか１項に記載の超音波センサ装置。 The through hole is formed in a portion where the bumper surface faces downward from the horizontal direction,
The bezel is attached to the through hole so that the axial direction is substantially horizontal,
4. The ultrasonic sensor device according to claim 1, wherein a portion of the edge portion having the smallest angle is formed at a lower end portion of the flange portion.
JP2008081577A 2008-03-26 2008-03-26 Ultrasonic sensor device Pending JP2009236618A (en)

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CN110596684A (en) * 2019-10-17 2019-12-20 苏州优达斯汽车科技有限公司 Novel ultrasonic sensor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0221057A (en) * 1988-07-06 1990-01-24 Honda Motor Co Ltd Control device for continuously variable transmission
US20050242933A1 (en) * 2004-04-28 2005-11-03 Ko-Chin Loh Sensor assembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0221057A (en) * 1988-07-06 1990-01-24 Honda Motor Co Ltd Control device for continuously variable transmission
US20050242933A1 (en) * 2004-04-28 2005-11-03 Ko-Chin Loh Sensor assembly

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