JP5037105B2 - Cushion pad - Google Patents

Cushion pad Download PDF

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JP5037105B2
JP5037105B2 JP2006336028A JP2006336028A JP5037105B2 JP 5037105 B2 JP5037105 B2 JP 5037105B2 JP 2006336028 A JP2006336028 A JP 2006336028A JP 2006336028 A JP2006336028 A JP 2006336028A JP 5037105 B2 JP5037105 B2 JP 5037105B2
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detection sensor
cushion pad
seating
seating detection
groove
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JP2008143471A (en
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弘之 馬場
洋 大年
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Toyo Tire Corp
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Toyo Tire and Rubber Co Ltd
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Description

本発明は着座したか否かを検出するための着座検出センサを取り付け可能に構成されるクッションパッドに関する。より詳細には、着座検出センサをクッションパッドの着座部に載置する場合における位置決めを容易に行なうことができるクッションパッドに関する。   The present invention relates to a cushion pad configured so that a seating detection sensor for detecting whether or not the user is seated can be attached. More specifically, the present invention relates to a cushion pad that can be easily positioned when a seating detection sensor is placed on a seating portion of the cushion pad.

主に自動車に代表される乗り物等の座席シートは、背もたれ部分と着座部分のクッションパッドから構成されている。そして、着座部分のクッションパッドには、特に、助手席のクッションパッドには、着座している否かを検出する着座検出センサが取り付けられ、事故時のエアバッグ起動判断に用いられている（特許文献１参照）。   A seat such as a vehicle represented by an automobile mainly includes a backrest portion and a cushion pad of a seating portion. In addition, a seating detection sensor for detecting whether or not the passenger is seated is attached to the cushion pad of the seating portion, in particular, to the cushion pad of the passenger seat, and is used for determining the airbag activation in the event of an accident (patent) Reference 1).

そして、上記特許文献１において、着座検出センサは、クッションパッドに埋設されているワイヤに取り付け固定されている。具体的には、信号線と交差している吊り溝の底面を深く形成して深溝部を設け、且つフォーム（クッションパッドに相当する）に埋設されているワイヤを深溝部内から除去する。そして、信号線の折り返し部を深溝部内に自由度を持たせて配設されている（特許文献１、図１参照）。   And in the said patent document 1, the seating detection sensor is attached and fixed to the wire currently embed | buried under the cushion pad. Specifically, the bottom surface of the suspension groove intersecting with the signal line is formed deep to provide a deep groove portion, and the wire embedded in the foam (corresponding to a cushion pad) is removed from the deep groove portion. Then, the folded portion of the signal line is disposed in the deep groove portion with a degree of freedom (see Patent Document 1 and FIG. 1).

特開２００２−２１１２９７号公報JP 2002-211297 A

しかしながら、上記の特許文献１においては、着座検出センサとクッションパッドとの取付構造を詳細に説明するものの、着座検出センサとクッションパッドとの位置決め方法について明細書に記載がない。着座検出センサとクッションパッドとの位置決めをどのように行なうかは、着座検出センサとクッションパッドとを正確な位置で精度良く取り付けなければならないとする観点から特に重要である。   However, in Patent Document 1 described above, the mounting structure between the seating detection sensor and the cushion pad will be described in detail, but the positioning method between the seating detection sensor and the cushion pad is not described in the specification. The positioning of the seating detection sensor and the cushion pad is particularly important from the viewpoint that the seating detection sensor and the cushion pad must be accurately attached at an accurate position.

ところが、着座検出センサの形状や構造は多種多様であり、クッションパッドとの位置決め方法には、着座検出センサ及びクッションパッドの仕様（形状、構造）毎に設計する必要がある。   However, the shape and structure of the seating detection sensor are various, and the positioning method with the cushion pad needs to be designed for each specification (shape and structure) of the seating detection sensor and the cushion pad.

例えば、着座検出センサがセンサ本体部とハーネス部から構成されている場合、センサ本体部の位置を正確に位置決めしてクッションパッドに取り付けなければ、着座したか否かを精度良く検出できない。特に、子供のような小さい臀部の場合、着座範囲が小さくなり、従って、センサ本体部を所定位置に正確に位置決めし取り付ける必要がある。   For example, when the seating detection sensor is composed of a sensor main body portion and a harness portion, it is impossible to accurately detect whether or not the user is seated unless the position of the sensor main body portion is accurately positioned and attached to the cushion pad. In particular, in the case of a small buttocks such as a child, the seating range becomes small, and therefore it is necessary to accurately position and attach the sensor body to a predetermined position.

また、ハーネス部は、通常、クッションパッドの後方に配置されるが、クッションパッド後方部には背もたれ部としてのクッションパッドが配設される位置でもあるため、ハーネス部が邪魔にならないように所定位置に的確に配置され固定されていなければ、ハーネス部の損傷や信号線の断線が生じると考えられる。   In addition, the harness part is usually disposed behind the cushion pad, but the cushion pad as a backrest part is also disposed at the rear part of the cushion pad, so that the harness part does not get in the way. If it is not properly arranged and fixed, it is considered that the harness part is damaged or the signal line is disconnected.

また、通常、着座検出センサのクッションパッドへの取り付けは、手作業で行なわれるため、精度良く所定位置に取り付けることが困難であり、上記特許文献１のようにワイヤ部材に固定する方法では特に位置決めが難しく、より簡単に位置決めができて取り付けられるように作業改善が望まれている。   In addition, since the seating detection sensor is normally attached to the cushion pad manually, it is difficult to attach the seating detection sensor to a predetermined position with high accuracy. Therefore, it is desired to improve work so that positioning can be performed more easily.

そこで、本発明の目的は、上記の有する問題点に鑑みて、着座検出センサを取り付け可能に構成されるクッションパッドであって、着座検出センサの取付片をクッションパッドの嵌合溝部に嵌合することで、着座検出センサの位置決めを容易に行なって正確に所定の位置に着座検出センサを取り付けることができるクッションパッドを提供することにある。   In view of the above-described problems, an object of the present invention is a cushion pad configured so that a seating detection sensor can be attached, and the mounting piece of the seating detection sensor is fitted into the fitting groove portion of the cushion pad. Thus, an object of the present invention is to provide a cushion pad capable of easily positioning a seating detection sensor and attaching the seating detection sensor to a predetermined position accurately.

上記課題は、各請求項記載の発明により達成される。すなわち、本発明に係るクッションパッドは、着座したか否かを検出するための着座検出センサを取り付け可能に構成されるクッションパッドであって、前記着座検出センサの縁部に設けられた取付片が嵌合される嵌合溝部を設け、前記取付片を前記嵌合溝部に嵌合することで、前記着座検出センサを位置決め可能に構成したことを特徴とする。   The above-mentioned subject is achieved by the invention described in each claim. That is, the cushion pad according to the present invention is a cushion pad configured so that a seating detection sensor for detecting whether or not the user is seated can be attached, and an attachment piece provided at an edge of the seating detection sensor is provided. A fitting groove portion to be fitted is provided, and the seating detection sensor is configured to be positioned by fitting the attachment piece into the fitting groove portion.

上記構成の作用効果は以下のとおりである。すなわち、クッションパッドには、着座検出センサが所定の位置に取り付け可能に構成されている。この着座検出センサは、クッションパッドの所定位置に正確に取り付けられていなければ、その機能を十分に発揮できない。そのために、着座検出センサの縁部に取付片を設け、この取付片が嵌合される嵌合溝部をクッションパッドに設けてある。これによって、着座検出センサをクッションパッドの所定位置に正確に位置決めして取り付けることができる。通常、着座検出センサのクッションパッドへの取り付けは、手作業で行なわれるため、素早く精度良く所定位置に取り付けることが困難であったが、これにより、精度良くかつ簡単に素早く位置決めして着座検出センサを取り付けることができる。   The operational effects of the above configuration are as follows. That is, the cushion pad is configured such that a seating detection sensor can be attached to a predetermined position. If this seating detection sensor is not accurately attached to a predetermined position of the cushion pad, its function cannot be fully exhibited. For this purpose, an attachment piece is provided at the edge of the seating detection sensor, and a fitting groove portion into which the attachment piece is fitted is provided in the cushion pad. Accordingly, the seating detection sensor can be accurately positioned and attached to a predetermined position of the cushion pad. Normally, the seating detection sensor is attached to the cushion pad manually, so it was difficult to quickly and accurately attach it to a predetermined position. Can be attached.

また、本発明の好適な実施形態として、前記クッションパッドは、前記着座検出センサが載置される着座部と、前記着座部の周囲に形成された凹溝部とを設け、前記嵌合溝部が、前記着座部の縁部に形成されて前記凹溝部に連接され、前記取付片が、前記着座検出センサから延びる一対の第１部分と、前記第１部分同士を連ねる第２部分とで構成されるコの字状を形成し、前記取付片の一対の第１部分が前記嵌合溝部に嵌合され、前記第２部分が前記凹溝部に嵌合されることが好ましい。この構成によって、コの字状の取付片が有する第１部分及び第２部分をそれぞれ嵌合溝部及び凹溝部に嵌合することにより、取付片を安定して取り付けられ、着座検出センサの位置決め精度が向上する。   Further, as a preferred embodiment of the present invention, the cushion pad is provided with a seating portion on which the seating detection sensor is placed, and a recessed groove portion formed around the seating portion, and the fitting groove portion, Formed on the edge portion of the seating portion and connected to the concave groove portion, the mounting piece is composed of a pair of first portions extending from the seating detection sensor and a second portion connecting the first portions. It is preferable that a U-shape is formed, a pair of first portions of the mounting piece is fitted into the fitting groove portion, and the second portion is fitted into the concave groove portion. With this configuration, by fitting the first and second parts of the U-shaped mounting piece into the fitting groove and the concave groove, respectively, the mounting piece can be stably attached, and the positioning accuracy of the seating detection sensor Will improve.

また、本発明の好適な実施形態として、前記嵌合溝部は、台形状をなし、前記着座部から前記凹溝部に向かって前記嵌合溝部の溝深さが漸増されることが好ましい。この構成によって、取付片を嵌合溝部に嵌合する際の作業性が向上するとともに、嵌合した取付片が安定する。また、クッションパッドの成形性（例えば、発泡原料の流動性等が良くなる）が向上するので好ましい。また、クッションパッドを金型から取り出す際に、脱型不良（ひっかかりによる損傷等）を生じないので好ましい。   As a preferred embodiment of the present invention, it is preferable that the fitting groove portion has a trapezoidal shape, and the groove depth of the fitting groove portion is gradually increased from the seating portion toward the concave groove portion. With this configuration, workability when fitting the attachment piece into the fitting groove is improved, and the fitted attachment piece is stabilized. Moreover, since the moldability (for example, the fluidity | liquidity of a foaming raw material, etc.) of a cushion pad improves, it is preferable. Moreover, when taking out a cushion pad from a metal mold | die, since a demolding defect (damage by catching etc.) does not arise, it is preferable.

また、本発明の好適な実施形態として、前記嵌合溝部が、着座部幅方向両側にて、着座部前後方向に間隔を設けて４つ設けられていることが好ましい。位置決めのためには、嵌合溝部と取付片の嵌合箇所を１箇所よりも複数個所に設けた方がよく、着座検出センサの全体範囲に対する位置決め精度の観点から、嵌合箇所が着座部幅方向両側にて、着座部前後方向に間隔を設けて４箇所に構成されるように、嵌合溝部を当該配置となるように計４つ設けることが好ましい。また、嵌合溝部を上記配置となるように計４つ設けることで、嵌合溝部の構造や製造用金型形状を必要以上に複雑に構成しなくてすみ好ましい。   As a preferred embodiment of the present invention, it is preferable that four of the fitting groove portions are provided in the seating portion width direction on both sides in the seating portion front-rear direction. For positioning, it is better to provide more than one place for fitting grooves and mounting pieces rather than one place. From the viewpoint of positioning accuracy with respect to the entire range of the seating detection sensor, the fitting place is the seating part width. It is preferable to provide a total of four fitting grooves so as to be arranged at four positions on both sides in the direction so as to be configured at four positions with a spacing in the front-rear direction of the seating portion. In addition, it is preferable to provide a total of four fitting groove portions so as to have the above arrangement, so that the structure of the fitting groove portion and the shape of the manufacturing mold need not be made more complicated than necessary.

また、本発明の好適な実施形態として、前記取付片の第１部分及び第２部分に細幅部分を形成し、前記取付片のコの字状内部に着座検出センサから延びる台形状片を形成することが好ましい。この構成によって、細幅部分と他の部分との段差部分が嵌合溝部または凹溝部の当接する壁面に食い込むように嵌合され、また、台形状片がクッションパッドに食い込むように作用するため、嵌合溝部及び凹溝部と取付片との嵌合強度が増し、着座検出センサのクッションパッドへの位置決めを精度良く行って、強固に固定し、取り付け作業中において、着座検出センサがクッションパッド表面からズレやヨレ等が生じないので好ましい。   As a preferred embodiment of the present invention, a narrow portion is formed in the first and second portions of the mounting piece, and a trapezoidal piece extending from the seating detection sensor is formed inside the U-shape of the mounting piece. It is preferable to do. With this configuration, the step portion between the narrow width portion and the other portion is fitted so as to bite into the wall surface where the fitting groove portion or the concave groove portion abuts, and the trapezoidal piece acts to bite into the cushion pad. The fitting strength between the fitting groove and concave groove and the mounting piece is increased, the seating detection sensor is positioned to the cushion pad with high accuracy and firmly fixed. This is preferable because no misalignment or twisting occurs.

また、本発明の好適な実施形態として、前記着座検出センサに接続されるハーネス部を位置固定するための溝部をさらに設けることが好ましい。これによって、ハーネス部の動きを規制でき、ハーネス部の根元部分（着座検出センサとの接続部分）に損傷や断線を生じさせることがないので好ましい。   As a preferred embodiment of the present invention, it is preferable to further provide a groove portion for fixing the position of the harness portion connected to the seating detection sensor. This is preferable because the movement of the harness part can be restricted and the root part (connection part with the seating detection sensor) of the harness part is not damaged or disconnected.

本発明に係る実施形態を、図面を参照して詳細に説明する。図１〜５は、本実施形態に係るクッションパッドＰについて説明する図である。   Embodiments according to the present invention will be described in detail with reference to the drawings. 1-5 is a figure explaining the cushion pad P which concerns on this embodiment.

図１は、クッションパッドＰ上に着座検出センサＳが所定位置に位置決めされて載置されている状態を示す図である。コの字状凹溝１１には、コの字状のワイヤ部材２３が埋設され、当該ワイヤ部材２３の一部が露出しており、着座検出センサＳを取り付け固定するために用いることができる。また、コの字状のワイヤ部材２３は、前記一部露出部分と表皮（不図示）を取り付け固定するためにも用いられる。その取付方法は、公知であるので、詳細な説明は省略する。また、ワイヤ部材に代わって面ファスナ（不図示）が埋設される場合もある。   FIG. 1 is a view showing a state in which the seating detection sensor S is positioned and placed on the cushion pad P at a predetermined position. A U-shaped wire member 23 is embedded in the U-shaped concave groove 11, and a part of the wire member 23 is exposed, and can be used to attach and fix the seating detection sensor S. The U-shaped wire member 23 is also used to attach and fix the partially exposed portion and the skin (not shown). Since the attachment method is well-known, detailed description is abbreviate | omitted. Moreover, a surface fastener (not shown) may be embedded instead of the wire member.

また、クッションパッドＰ上の中央位置の直線状溝１２には直線状のワイヤ部材（不図示）が、湾曲状溝１３には湾曲状のワイヤ部材（不図示）が埋設され、その一部が露出しており、表皮（不図示）の取り付けのために用いられている。   Further, a linear wire member (not shown) is embedded in the linear groove 12 at the center position on the cushion pad P, and a curved wire member (not shown) is embedded in the curved groove 13, and a part thereof is embedded. It is exposed and used for attaching an epidermis (not shown).

着座検出センサＳは、二つの部分に分離される臀部を正確に検出できるように、図面上左右に分離された構造をなし、当該左右中央部には図１で上下となる前後方向に帯状の開口部Ｓ２が形成されている。この開口部Ｓ２の縁部から取付部Ｓ３，Ｓ４が延設されている。この取付部Ｓ３，Ｓ４は、直線状溝１２内に露出されたワイヤ部材（不図示）にＣリング等の固定具を介して連結される。また、図面において下側にコネクタ部Ｓ１が設けられ、当該コネクタ部Ｓ１にはハーネス部Ｈが接続され、当該ハーネス部Ｈは、着座検出センサＳと外部機器（不図示）との信号伝達のために設けられている。なお、着座検出センサＳは、例えば、薄厚シート（フィルム）上に印刷された複数個のセルによって構成され、所定値以上の圧力または変形を受けるとＯＮ信号を発生する感圧センサによりなる。   The seating detection sensor S has a structure that is separated into left and right in the drawing so that the collar part separated into two parts can be accurately detected, and the right and left central part has a belt-like shape in the front-rear direction that is up and down in FIG. An opening S2 is formed. Mounting portions S3 and S4 extend from the edge of the opening S2. The mounting portions S3 and S4 are connected to a wire member (not shown) exposed in the linear groove 12 via a fixture such as a C ring. In the drawing, a connector part S1 is provided on the lower side, and a harness part H is connected to the connector part S1, and the harness part H is used for signal transmission between the seating detection sensor S and an external device (not shown). Is provided. The seating detection sensor S is composed of, for example, a plurality of cells printed on a thin sheet (film), and is a pressure-sensitive sensor that generates an ON signal when subjected to a pressure or deformation exceeding a predetermined value.

図２は、クッションパッドＰに設けられた嵌合溝部２１を説明するための図である。図２（ａ）に示すように、クッションパッドＰの着座部Ｐ１の左右に２つずつ設けられた嵌合溝部２１は、着座部Ｐ１の縁部Ｐ２に形成され、コの字状凹溝１１（凹溝部に相当する）に連接されている。この嵌合溝部２１は分離した２つの溝から構成され、各々の溝が正面視で台形状をなしている。また、嵌合溝部２１とコの字状凹溝１１が連接されることにより、クッションパッドＰの縁部Ｐ２に台形状の凸部２１ａが形成される。そして、図２（ｂ）に、台形状の凸部２１ａの上辺部分２１ｂとコの字状凹溝１１のＡ−Ａ’断面が示すように、台形状の凸部２１ａの上辺部分２１ｂは丸みを帯び、なだらかな勾配をもってコの字状凹溝１１に連接されている。   FIG. 2 is a view for explaining the fitting groove 21 provided in the cushion pad P. FIG. As shown in FIG. 2A, two fitting grooves 21 provided on the left and right sides of the seating portion P1 of the cushion pad P are formed on the edge portion P2 of the seating portion P1, and the U-shaped concave groove 11 is formed. It is connected to (corresponding to the groove portion). The fitting groove 21 is composed of two separated grooves, and each groove has a trapezoidal shape when viewed from the front. Further, the fitting groove portion 21 and the U-shaped concave groove 11 are connected to each other, whereby a trapezoidal convex portion 21a is formed on the edge portion P2 of the cushion pad P. 2B, the upper side portion 21b of the trapezoidal convex portion 21a and the upper side portion 21b of the trapezoidal convex portion 21a are rounded, as shown by the AA ′ cross section of the trapezoidal convex portion 21a. And is connected to the U-shaped groove 11 with a gentle gradient.

また、図２（ｃ）に、嵌合溝部２１とコの字状凹溝１１のＢ−Ｂ’断面が示すように、着座部Ｐ２からコの字状凹溝１１に向かって嵌合溝部２１の溝深さ２１ｃが漸増されるように構成されている。このように全体的に丸みを帯びた台形状の凸部２１ａの形状及び溝深さ２１ｃが漸増している嵌合溝部２１によって、取付片３との嵌合が的確になされるとともに、クッションパッドの成形性がよく、また、金型からの離型に際し、引っかかり等の問題が生じない。   In addition, as shown in FIG. 2C, the BB ′ cross section of the fitting groove 21 and the U-shaped concave groove 11, the fitting groove 21 from the seating portion P <b> 2 toward the U-shaped concave groove 11. The groove depth 21c is gradually increased. Thus, the fitting groove 3 with the rounded trapezoidal convex portion 21a and the fitting groove portion 21 with the groove depth 21c gradually increasing can be accurately fitted to the mounting piece 3 and the cushion pad. The moldability is good, and there is no problem such as catching when releasing from the mold.

また、図２（ａ）（ｂ）（ｃ）に示すように、コの字状のワイヤ部材２３の一部が、台形状の凸部２１ａの上辺部分２１ｂ側に露出している。この一部露出したワイヤ部材２３と取付片３１がＣリング等の固定具（不図示）で取り付け固定されることになる。   Further, as shown in FIGS. 2A, 2B, and 2C, a part of the U-shaped wire member 23 is exposed to the upper side portion 21b side of the trapezoidal convex portion 21a. The partially exposed wire member 23 and attachment piece 31 are attached and fixed by a fixture (not shown) such as a C ring.

図３は、着座検出センサＳに設けられた取付片３１を説明するための図である。図３に示すように、取付片３１は、着座検出センサＳの縁部Ｓ５に設けられ、前記着座検出センサＳから延びる一対の第１部分３２と、この第１部分３２同士を連ねる第２部分３３とで構成され、第１部分３２及び第２部分３３とでコの字状を形成している。そして、取付片３１の第１部分３２に細幅部分３２ａを形成し、第２部分３３に細幅部分３３ａを形成している。さらに、取付片３１のコの字状内部３４に着座検出センサＳから延びる台形状片３１ａを形成している。   FIG. 3 is a view for explaining the attachment piece 31 provided in the seating detection sensor S. FIG. As shown in FIG. 3, the attachment piece 31 is provided at the edge S <b> 5 of the seating detection sensor S, a pair of first portions 32 extending from the seating detection sensor S, and a second portion that connects the first portions 32 to each other. 33, and the first portion 32 and the second portion 33 form a U-shape. The narrow portion 32 a is formed in the first portion 32 of the attachment piece 31, and the narrow portion 33 a is formed in the second portion 33. Further, a trapezoidal piece 31 a extending from the seating detection sensor S is formed in the U-shaped inside 34 of the attachment piece 31.

また、取付片３１のコの字状内部３４は、変形の台形状をなしている。当該台形状の底辺部分は、その中央部分が台形状片３１ａによって凹状に形成されている。また、当該台形状の上辺部分（第２部分３３に接する部分）は、細幅部分３３ａが形成されているためにその中央部分が凸状３１ｂに形成されている。また、当該台形状の両側辺（第１部分３２に接する部分）は、細幅部分３２ａが形成されているために直線ではなく段差３１ｃ，３１ｄが形成されている。   The U-shaped interior 34 of the mounting piece 31 has a deformed trapezoidal shape. The bottom portion of the trapezoidal shape has a central portion formed in a concave shape by a trapezoidal piece 31a. Further, the upper side portion of the trapezoidal shape (the portion in contact with the second portion 33) is formed with a convex portion 31b at the center portion because the narrow portion 33a is formed. Further, the both sides of the trapezoidal shape (portions in contact with the first portion 32) are not straight but have steps 31c and 31d because the narrow portion 32a is formed.

図４は、嵌合溝部２１と取付片３１とを嵌合させた嵌合箇所の拡大図である。図４に示すように、嵌合溝部２１に取付片３１の第１部分３２が嵌合し、コの字状凹溝１１に取付片３１の第２部分３３が嵌合する。そして、台形状片３１ａが台形状の凸部２１ａに嵌合し、コの字状内部３４の上辺部分の凸状３１ｂがコの字状凹溝１１に嵌合し、両側辺の段差３１ｃ，３１ｄが嵌合溝部２１の壁面（台形状の凸部２１ａの側壁面）に抵抗力をもって嵌合するため、ズレやヨレを確実に防止することができる。   FIG. 4 is an enlarged view of a fitting portion where the fitting groove 21 and the attachment piece 31 are fitted. As shown in FIG. 4, the first portion 32 of the attachment piece 31 is fitted into the fitting groove portion 21, and the second portion 33 of the attachment piece 31 is fitted into the U-shaped concave groove 11. Then, the trapezoidal piece 31a is fitted to the trapezoidal convex portion 21a, the convex shape 31b of the upper side portion of the U-shaped interior 34 is fitted to the U-shaped concave groove 11, and the steps 31c, Since 31d fits with resistance to the wall surface of the fitting groove portion 21 (side wall surface of the trapezoidal convex portion 21a), displacement and twist can be reliably prevented.

図５は、着座検出センサＳのコネクタ部Ｓ１及びハーネス部Ｈの位置固定について説明するための図である。図５に示すように、コネクタ部Ｓ１は、センサ本体部分よりも厚みがあり、センサ本体部分の外部に設けられている。そこで、クッションパッドＰに、コネクタ部Ｓ１を安定に収納するためのコネクタ溝部５０を設けている。このコネクタ溝部５０は、コネクタ部Ｓ１の厚みよりも高い側壁５０ａを設け、コネクタ部Ｓ１に対する上方からの押し圧に対抗できるように構成されている。また、当該側壁５０ａによって、コネクタ部Ｓ１の水平移動を規制し、横ズレ等によるコネクタ部Ｓ１やセンサ本体部分の損傷または断線を防止することができる。このように、コネクタ溝部５０を設けることによって、コネクタ部Ｓ１が安定して収納され、位置固定されることとなり、横ズレ等の水平移動によるコネクタ部Ｓ１やセンサ本体部分の損傷を防ぐことができる。   FIG. 5 is a view for explaining the position fixing of the connector part S1 and the harness part H of the seating detection sensor S. FIG. As shown in FIG. 5, the connector part S1 is thicker than the sensor body part and is provided outside the sensor body part. Therefore, a connector groove portion 50 for stably housing the connector portion S1 is provided in the cushion pad P. This connector groove part 50 is provided with a side wall 50a higher than the thickness of the connector part S1, and is configured to be able to resist the pressing force from above on the connector part S1. Further, the side wall 50a can restrict the horizontal movement of the connector portion S1, and can prevent the connector portion S1 and the sensor main body portion from being damaged or disconnected due to a lateral shift or the like. Thus, by providing the connector groove portion 50, the connector portion S1 is stably housed and fixed in position, and damage to the connector portion S1 and the sensor main body due to horizontal movement such as lateral displacement can be prevented. .

また、コネクタ部Ｓ１に接続されるハーネス部Ｈは、着座検出センサＳと外部機器（不図示）との信号伝達のために設けられ、一定の大きさ（直径）を持つものであり、その位置固定が重要となる。そこで、クッションパッドＰに、ハーネス部Ｈを収納して経路確保し、位置固定するためのハーネス溝部５１（請求項に記載の溝部に相当する）を設けている。ハーネス溝部５１は、例えば、ハーネス部Ｈの予め定まった経路（図５の場合、コネクタ部Ｓ１の側部から伸び、９０度下方に折れ曲がる経路）に沿うように形成される。当該ハーネス溝部５１は、ハーネス部Ｈの直径よりも高い側壁５１ａを設け、ハーネス部Ｈに対する上方からの押し圧に対抗できるように構成されている。また、当該側壁５１ａによって、ハーネス部Ｈの水平移動を規制し、横ズレ等によるハーネス部Ｈ本体またはコネクタ部Ｓ１との接続部分の損傷または断線を防止することができる。このように、ハーネス溝部５１を設けることによって、ハーネス部Ｈ本体や、ハーネス部Ｈとコネクタ部Ｓ１との接続部分に損傷または断線が生じない。   The harness portion H connected to the connector portion S1 is provided for signal transmission between the seating detection sensor S and an external device (not shown) and has a certain size (diameter). Fixing is important. Therefore, the cushion pad P is provided with a harness groove part 51 (corresponding to the groove part described in the claims) for accommodating the harness part H, securing the path, and fixing the position. The harness groove portion 51 is formed, for example, along a predetermined route of the harness portion H (in the case of FIG. 5, a route extending from the side portion of the connector portion S1 and bending downward by 90 degrees). The harness groove 51 is provided with a side wall 51a that is higher than the diameter of the harness part H, and is configured to resist the pressing force from above on the harness part H. Moreover, the horizontal movement of the harness part H can be regulated by the side wall 51a, and damage or disconnection of the connection part with the harness part H main body or the connector part S1 due to lateral displacement or the like can be prevented. Thus, by providing the harness groove 51, damage or disconnection does not occur in the harness part H main body or the connection part between the harness part H and the connector part S1.

（クッションパッドの製造方法）
本発明のクッションパッドの製造方法は以下の工程を少なくとも備える。
（１）下型に所定のワイヤ部材をセットし、上型を型セットし、型セット後に、発泡原料（例えば、ポリウレタンフォーム原液組成物）を型内に注入し、発泡・硬化させる。
（２）型セットを解除し、成形物（クッションパッド）を型から取り出す。
（３）得られたクッションパッドＰの表面に、着座検出センサＳを位置決めして仮固定する。この際、嵌合溝部２１に取付片３１を嵌合する。その後、取付片３１の第２部分３３を、固定リングでワイヤ部材２３に取り付け固定する。また、不図示のその他の固定部位を固定リングや差込ピン等で取り付け固定する（取付片３１の取り付けと順序を入れ替えてもよい）。 (Cushion pad manufacturing method)
The manufacturing method of the cushion pad of the present invention includes at least the following steps.
(1) A predetermined wire member is set in the lower mold, the upper mold is set in the mold, and after the mold is set, a foaming raw material (for example, a polyurethane foam stock solution composition) is injected into the mold and foamed and cured.
(2) Release the mold set and remove the molded product (cushion pad) from the mold.
(3) The seating detection sensor S is positioned and temporarily fixed on the surface of the obtained cushion pad P. At this time, the attachment piece 31 is fitted into the fitting groove 21. Thereafter, the second portion 33 of the attachment piece 31 is attached and fixed to the wire member 23 with a fixing ring. Further, other fixing parts (not shown) are attached and fixed with a fixing ring, an insertion pin, or the like (the order of attachment of the attachment pieces 31 may be changed).

（クッションパッドの原料）
なお、実施形態のクッションパッドＰは、例えば、ポリウレタン製が例示される。ポリウレタンの原材料等は公知のものが制限なく適用でき、クッションパッドとしての機能を発揮するために、弾力性等を考慮して選択される。 (Raw pad material)
In addition, the cushion pad P of embodiment is made from polyurethane, for example. A known raw material of polyurethane can be applied without limitation, and is selected in consideration of elasticity and the like in order to exhibit a function as a cushion pad.

以上の本実施形態によれば、着座検出センサＳをクッションパッドＰの所定位置に正確に位置決めすることができる。例えば、着座検出センサＳをクッションパッドＰに手作業で取り付ける場合に、精度良くかつ簡単に素早く位置決めすることができ、着座検出センサＳを正確な位置に取り付けることができる。   According to the above embodiment, the seating detection sensor S can be accurately positioned at a predetermined position of the cushion pad P. For example, when the seating detection sensor S is manually attached to the cushion pad P, the seating detection sensor S can be accurately and easily positioned quickly, and the seating detection sensor S can be attached at an accurate position.

また、以上の実施形態において、コの字状のワイヤ部材２３と表皮（不図示）を固定具（例：Ｃリング）で取り付け固定することができる。   Moreover, in the above embodiment, the U-shaped wire member 23 and the skin (not shown) can be attached and fixed with a fixture (eg, C ring).

クッションパッド上に着座検出センサが所定位置に位置決めされて載置されている状態を示す図The figure which shows the state by which the seating detection sensor is positioned and mounted in the predetermined position on the cushion pad. クッションパッドに設けられた嵌合溝部を説明するための図The figure for demonstrating the fitting groove part provided in the cushion pad 着座検出センサに設けられた取付片を説明するための図The figure for demonstrating the attachment piece provided in the seating detection sensor 嵌合溝部と取付片とを嵌合させた嵌合箇所の拡大図Enlarged view of the fitting part where the fitting groove and the mounting piece are fitted 着座検出センサのコネクタ部及びハーネス部の位置固定について説明するための図The figure for demonstrating the position fixing of the connector part and harness part of a seating detection sensor

符号の説明Explanation of symbols

Ｐ クッションパッド
Ｐ１ 着座部
Ｐ２ 着座部の縁部
Ｓ 着座検出センサ
Ｓ１ コネクタ部
Ｓ２ 開口部
Ｓ３ 取付部
Ｓ４ 取付部
Ｓ５ 着座検出センサの縁部
Ｈ ハーネス部
１１ コの字状凹溝（凹溝部に相当する）
１２ 直線状溝
１３ 湾曲状溝
２１ 嵌合溝部
２１ａ 台形状の凸部
２３ コの字状のワイヤ部材
３１ 取付片
３１ａ 台形状片
３１ｂ 上辺部分の凸状
３１ｃ 段差
３１ｄ 段差
３２ 第１部分
３２ａ 細幅部分
３３ 第２部分
３３ａ 細幅部分
３４ 取付片のコの字状内部
５０ コネクタ溝部
５１ ハーネス溝部（溝部に相当する） P Cushion pad P1 Seating part P2 Seating edge S Seating detection sensor S1 Connector part S2 Opening part S3 Mounting part S4 Mounting part S5 Seating detection sensor edge H Harness part 11 U-shaped groove To do)
12 linear groove 13 curved groove 21 fitting groove 21a trapezoidal convex part 23 U-shaped wire member 31 mounting piece 31a trapezoidal piece 31b convex part 31c on upper side part step 31d step 32 first part 32a narrow width Part 33 Second part 33a Narrow part 34 U-shaped inside 50 of mounting piece Connector groove 51 Harness groove (corresponding to groove)

Claims (4)

着座したか否かを検出するための着座検出センサが載置される着座部と、前記着座部の周囲に形成された凹溝部とが設けられ、前記着座検出センサを取り付け可能に構成されるクッションパッドであって、
前記着座検出センサの縁部に設けられた取付片が嵌合される嵌合溝部を設け、
前記取付片を前記嵌合溝部に嵌合することで、前記着座検出センサを位置決め可能に構成されており、
前記嵌合溝部が、前記着座部の縁部に形成されて前記凹溝部に連接され、
前記取付片が、前記着座検出センサから延びる一対の第１部分と、前記第１部分同士を連ねる第２部分とで構成されるコの字状を形成し、
前記取付片の一対の第１部分が前記嵌合溝部に嵌合され、前記第２部分が前記凹溝部に嵌合され、
前記取付片の第１部分及び第２部分に細幅部分を形成し、前記取付片のコの字状内部に着座検出センサから延びる台形状片を形成したことを特徴とするクッションパッド。 A seating portion for seating detection sensor for detecting whether or not seated is placed, said a groove portion formed around the seat is provided, configured to be capable of cushion attaching the seating detection sensor A pad,
Providing a fitting groove portion into which a mounting piece provided at an edge of the seating detection sensor is fitted;
The seating detection sensor can be positioned by fitting the mounting piece into the fitting groove.
The fitting groove is formed at an edge of the seating part and connected to the concave groove,
The mounting piece forms a U-shape composed of a pair of first portions extending from the seating detection sensor and a second portion connecting the first portions;
A pair of first parts of the mounting piece are fitted into the fitting groove part, and the second part is fitted into the concave groove part,
A cushion pad, wherein a narrow portion is formed in the first portion and the second portion of the mounting piece, and a trapezoidal piece extending from a seating detection sensor is formed inside the U-shape of the mounting piece. 前記嵌合溝部は、台形状をなし、前記着座部から前記凹溝部に向かって前記嵌合溝部の溝深さが漸増されることを特徴とする請求項１に記載のクッションパッド。   The cushion pad according to claim 1, wherein the fitting groove portion has a trapezoidal shape, and the groove depth of the fitting groove portion is gradually increased from the seating portion toward the concave groove portion. 前記嵌合溝部が、着座部幅方向両側にて、着座部前後方向に間隔を設けて計４つ設けられていることを特徴とする請求項１または２に記載のクッションパッド。   The cushion pad according to claim 1 or 2, wherein a total of four fitting groove portions are provided on both sides of the seating portion width direction with a spacing in the front-rear direction of the seating portion. 前記着座検出センサに接続されるハーネス部を位置固定するための溝部をさらに設けたことを特徴とする請求項１から３のいずれか１項に記載のクッションパッド。   The cushion pad according to any one of claims 1 to 3, further comprising a groove portion for fixing a position of a harness portion connected to the seating detection sensor.
JP2006336028A 2006-12-13 2006-12-13 Cushion pad Expired - Fee Related JP5037105B2 (en)

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