JP6068897B2 - Locking structure - Google Patents

Locking structure Download PDF

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JP6068897B2
JP6068897B2 JP2012208530A JP2012208530A JP6068897B2 JP 6068897 B2 JP6068897 B2 JP 6068897B2 JP 2012208530 A JP2012208530 A JP 2012208530A JP 2012208530 A JP2012208530 A JP 2012208530A JP 6068897 B2 JP6068897 B2 JP 6068897B2
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protrusion
elastic piece
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豪生 石原
豪生 石原
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Yazaki Corp
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Description

本発明は、第１の構造材に装備された弾性片の先端が撓み変形しながら第２の構造材上の係止突起を乗り越えると、弾性片の先端側に形成された係止孔が前記係止突起に係合して、第１の構造材と第２の構造材とが連結状態になる係止構造に関する。   According to the present invention, when the tip of the elastic piece provided in the first structural member is bent and deformed, the locking hole formed on the tip side of the elastic piece is The present invention relates to a locking structure in which a first structural member and a second structural member are connected to each other by engaging with a locking protrusion.

図５〜図７は、下記特許文献１に開示された係止構造を示したものである。   5 to 7 show a locking structure disclosed in Patent Document 1 below.

この係止構造は、図５に矢印Ｚ１で示すように第１の構造材１１０を第２の構造材１２０に突き合わせると、図６及び図７に示すように、第１の構造材１１０に装備された弾性片１１５の先端１１５ａが撓み変形しながら第２の構造材１２０上の係止突起１２１を乗り越えて、弾性片１１５の先端１１５ａ側に形成された係止孔１１３が係止突起１２１に係合する。この係止孔１１３と係止突起１２１との係合によって、第１の構造材１１０と第２の構造材１２０とが連結状態になる。   When the first structural member 110 is abutted against the second structural member 120 as shown by an arrow Z1 in FIG. 5, the locking structure is formed on the first structural member 110 as shown in FIGS. The front end 115a of the elastic piece 115 provided is bent and deformed to get over the engagement protrusion 121 on the second structural member 120, and the engagement hole 113 formed on the end 115a side of the elastic piece 115 is the engagement protrusion 121. Engage with. By the engagement between the locking hole 113 and the locking projection 121, the first structural material 110 and the second structural material 120 are connected.

係止突起１２１は、図６のように、弾性片１１５側に向いた対向面１２１ａが、傾斜面（テーパ面）になっている。対向面１２１ａの傾斜は、図６に示すように、衝突する弾性片１１５の先端１１５ａを当該係止突起１２１の頂部側に送って、弾性片１１５の先端１１５ａを係止突起１２１上に乗り上がらせる面である。   As shown in FIG. 6, the locking protrusion 121 has an inclined surface (tapered surface) on the opposing surface 121 a facing the elastic piece 115. As shown in FIG. 6, the inclination of the facing surface 121 a is such that the leading end 115 a of the elastic piece 115 that collides is sent to the top side of the locking projection 121, and the leading end 115 a of the elastic piece 115 rides on the locking projection 121. It is a surface to make.

特開２００６−２１５６１号公報JP 2006-21561 A

ところが、特許文献１の係止構造は、第１の構造材１１０と第２の構造材１２０の組み付け作業時において、弾性片１１５の先端１１５ａが対向面１２１ａに達するまで双方接触する箇所が無く、ガタツキ等不安定な状態にあり、また弾性片１１５の先端１１５ａが対向面１２１ａを乗り越える際には、一段の傾斜面を一気に上り切らなければならないため、弾性片１１５に作用する曲げ荷重が一気に上昇する。言い換えると、操作途中で急激に操作力が増加するため、操作性が悪いという問題があった。
また、急激な撓み変形によって、弾性片１１５の破損が発生するおそれがあった。 However, in the locking structure of Patent Document 1, there is no place where both ends are in contact until the tip 115a of the elastic piece 115 reaches the opposing surface 121a during the assembly work of the first structural member 110 and the second structural member 120. When the tip 115a of the elastic piece 115 gets over the opposing surface 121a, the bending load acting on the elastic piece 115 increases at a stretch. To do. In other words, there is a problem that the operability is poor because the operating force suddenly increases during the operation.
Further, there is a possibility that the elastic piece 115 may be damaged due to a sudden bending deformation.

そこで、本発明の目的は、上記課題を解消することに係り、第１の構造材の弾性片の先端が第２の構造材上の係止突起を乗り越える前に、弾性片の先端が第２の構造材に係止されるまでの間のガタツキを防止して不安定な状態をなくすことができ、また弾性片に作用する曲げ荷重を段階的に上昇させることで、操作力の急激な変化を防止して操作性を向上させることができ、また、急激な撓み変形による弾性片の破損を防止することができる係止構造を提供することにある。   Therefore, an object of the present invention is to solve the above-described problem, and before the tip of the elastic piece of the first structural material gets over the locking projection on the second structural material, the tip of the elastic piece is the second. It can prevent rattling until it is locked to the structural material, eliminate the unstable state, and increase the bending load acting on the elastic piece step by step, thereby rapidly changing the operating force It is an object of the present invention to provide a locking structure capable of preventing operability and improving operability and preventing damage to an elastic piece due to sudden bending deformation.

本発明の前述した目的は、下記の構成により達成される。
（１） 第１の構造材に突き合わされる第２の構造材に装備された係止突起であって、前記構造材相互の突き合わせ方向と直交する方向に突出して装備された係止突起と、
前記第１の構造材に前記突き合わせ方向に沿って延設された弾性片であって、前記構造材相互の突き合わせ時に先端側が撓み変形して前記係止突起に乗り上げ可能な弾性片と、
前記弾性片の先端側に形成された係止孔であって前記構造材相互の突き合わせが完了したときに前記弾性片の復元力で前記係止突起が係合する係止孔と、
を備えて、前記係止突起と前記係止孔との係合によって構造材相互を連結状態にする係止構造であって、
前記第２の構造材は、前記係止突起の前記弾性片が導入する側に装備された突起であって、前記係止突起よりも低い高さに突設されていて前記弾性片の前記先端を前記係止突起の突出高さの中間位置へ誘導する導入突起を備え、
前記係止突起及び前記導入突起は、前記突き合わせ方向に連続する一体の突起形状を有し、
前記係止突起の上端面と前記導入突起の上端面とは、前記係止突起における前記弾性片が導入する側の端面を介して段差を構成し、
前記係止突起及び前記導入突起における側方の同じ側の側面同士は、両側共に、連続する一つの平面を構成し、
前記係止突起及び前記導入突起の突出方向からみたとき、一対の前記平面を構成する前記係止突起及び前記導入突起の一対の側面のそれぞれが、前記突き合わせ方向における前記導入突起側から前記係止突起側へ移動するにつれて互いに遠ざかる方向に、前記突き合わせ方向に対して傾斜し、前記係止突起及び前記導入突起のそれぞれの上端面が台形状を有していることを特徴とする係止構造。 The above-described object of the present invention is achieved by the following configuration.
(1) A locking projection provided on the second structural material that is abutted against the first structural material, the locking projection provided to project in a direction perpendicular to the abutting direction between the structural materials,
An elastic piece extending along the abutting direction on the first structural material, the distal end side being bent and deformed at the time of abutting between the structural materials, and an elastic piece capable of riding on the locking projection;
A locking hole formed on a distal end side of the elastic piece, and a locking hole with which the locking protrusion engages with a restoring force of the elastic piece when the butting between the structural members is completed;
A locking structure for connecting the structural members to each other by engagement between the locking protrusion and the locking hole,
The second structural member is a protrusion provided on the side of the locking protrusion on which the elastic piece is introduced, and protrudes at a height lower than the locking protrusion, so that the tip of the elastic piece Including an introduction protrusion for guiding the engagement protrusion to an intermediate position of the protrusion height of the locking protrusion,
The locking protrusion and the introduction protrusion have an integral protrusion shape continuous in the abutting direction,
The upper end surface of the locking projection and the upper end surface of the introduction projection constitute a step through an end surface of the locking projection on the side where the elastic piece is introduced,
The side surfaces on the same side of the locking projection and the introduction projection constitute a continuous plane on both sides,
When viewed from the protruding direction of the locking protrusion and the introduction protrusion, each of the pair of side surfaces of the locking protrusion and the introduction protrusion constituting the pair of flat surfaces is locked from the introduction protrusion side in the abutting direction. A locking structure , wherein the locking projection is inclined with respect to the abutting direction in a direction away from each other as it moves toward the projection, and each upper end surface of the locking projection and the introduction projection has a trapezoidal shape .

（２） 前記第１の構造材は自動車用メータにおける見返しであり、前記第２の構造材は前記見返しが突き合わされるメータケースであることを特徴とする上記（１）に記載の係止構造。 (2) the first structural member is looking back in the meter for an automobile, wherein the second structural member the locking structure according to the above (1), characterized in that a meter case which the dial is matched .

上記（１）の構成によれば、第１の構造材と第２の構造材とを突き合わせるとき、第１の構造材上の弾性片は、まず、第２の構造材上の係止突起の手前に備えられた導入突起に乗り上げる。このとき、弾性片の先端が導入突起に接することで、弾性片の先端が第２の構造材に係止されるまでのガタツキがない。そして、導入突起によって係止突起の中間の高さ位置に誘導された後、係止突起に乗り上げる。   According to the configuration of (1) above, when the first structural material and the second structural material are brought into contact with each other, the elastic piece on the first structural material is first the locking protrusion on the second structural material. Ride on the introduction protrusion provided in front of. At this time, since the tip of the elastic piece comes into contact with the introduction protrusion, there is no backlash until the tip of the elastic piece is locked to the second structural member. Then, after being guided to an intermediate height position of the locking protrusion by the introducing protrusion, it rides on the locking protrusion.

即ち、第１の構造材の弾性片の先端が第２の構造材上の係止突起を乗り越える際の弾性片は、突出高さの低い導入突起を乗り越える段階、次いで、係止突起の中間高さから該係止突起を乗り越える段階の２段階に分けて撓み変位する。そのため、弾性片に作用する曲げ荷重特性は、段階的に上昇する特性となり、一段階で一気に急激に上昇することがない。従って、操作力の急激な変化を防止して操作性を向上させることができる。   That is, the elastic piece when the tip of the elastic piece of the first structural material gets over the locking projection on the second structural material goes over the introduction projection having a low protruding height, and then the intermediate height of the locking projection. Then, it is deflected and displaced in two stages, overcoming the locking projection. For this reason, the bending load characteristic acting on the elastic piece is a characteristic that increases in a stepwise manner, and does not increase suddenly in one step. Therefore, it is possible to improve the operability by preventing a rapid change in the operating force.

また、第２の構造材上の係止突起を乗り越えるまでの弾性片の撓み変形は、少なくとも、２段階に分けて徐々に大きくなるため、急激な撓み変形による弾性片の破損を防止することができる。   In addition, since the deformation of the elastic piece until it gets over the locking projection on the second structural member gradually increases in at least two stages, it is possible to prevent the elastic piece from being damaged by the sudden deformation. it can.

更に、上記（１）の構成によれば、弾性片が導入突起に乗り上がって、導入突起上を摺動するとき、摺動が進むに従って弾性片の先端と導入突起との摺動接触面が徐々に増加するため、摺動抵抗は摺動が進むに従って徐々に増大する負荷特性となる。即ち、操作時に急激な抵抗変化による操作性の低下がなく、弾性片の先端をスムーズに係止突起に誘導することができる。 Further, according to the configuration of ( 1 ) above, when the elastic piece rides on the introduction protrusion and slides on the introduction protrusion, the sliding contact surface between the tip of the elastic piece and the introduction protrusion is increased as the sliding proceeds. Since the resistance gradually increases, the sliding resistance has a load characteristic that gradually increases as the sliding progresses. That is, there is no deterioration in operability due to a sudden resistance change during operation, and the tip of the elastic piece can be smoothly guided to the locking projection.

従って、弾性片の先端が係止突起に突き当たる前の状態を仮装着状態とすると、仮装着状態への移行をスムーズにすることができる。   Therefore, when the state before the tip of the elastic piece abuts against the locking projection is set as the temporary mounting state, the transition to the temporary mounting state can be made smooth.

上記（２）の構成によれば、自動車メータにおける見返しをメータケースに突き合わせて連結する際、見返しに備えられた弾性片は、２段階の乗り上げ動作でメータケース上の係止突起に乗り上げるため、操作力の急激な変化を防止して、スムーズな操作性で、見返しとメータケースとを連結状態にすることができる。 According to the configuration of the above ( 2 ), when connecting the turn-back in the automobile meter to the meter case, the elastic piece provided for the turn-up rides on the locking protrusion on the meter case in a two-step ride-up operation. A sudden change in the operating force can be prevented, and the turning and meter case can be connected to each other with smooth operability.

また、メータケース上の係止突起を乗り越えるまでの弾性片の撓み変形は、少なくとも、２段階に分けて徐々に大きくなるため、急激な撓み変形による弾性片の破損を防止することができ、安心して見返しとメータケースとを連結状態にすることができる。   In addition, since the deformation of the elastic piece until it gets over the locking projection on the meter case is gradually increased in at least two stages, it is possible to prevent the elastic piece from being damaged due to sudden deformation. With this in mind, the turnaround and the meter case can be connected.

本発明による係止構造によれば、第１の構造材の弾性片の先端が第２の構造材上の係止突起を乗り越える際の弾性片は、突出高さの低い導入突起を乗り越える段階、次いで、係止突起の中間高さから該係止突起を乗り越える段階の２段階に分けて撓み変位する。そのため、弾性片に作用する曲げ荷重特性は、段階的に上昇する特性となり、一段階で一気に急激に上昇することがない。従って、操作力の急激な変化を防止して操作性を向上させることができる。   According to the locking structure of the present invention, the elastic piece when the tip of the elastic piece of the first structural material gets over the locking protrusion on the second structural material gets over the introduction protrusion having a low protruding height, Next, it is deflected and displaced in two stages, from the intermediate height of the locking protrusion, over the locking protrusion. For this reason, the bending load characteristic acting on the elastic piece is a characteristic that increases in a stepwise manner, and does not increase suddenly in one step. Therefore, it is possible to improve the operability by preventing a rapid change in the operating force.

また、第２の構造材上の係止突起を乗り越えるまでの弾性片の撓み変形は、少なくとも、２段階に分けて徐々に大きくなるため、急激な撓み変形による弾性片の破損を防止することができる。
また、弾性片の先端が導入突起に接することで、弾性片の先端が第２の構造材に係止されるまでのガタツキがなく、不安定な状態を防止できる。 In addition, since the deformation of the elastic piece until it gets over the locking projection on the second structural member gradually increases in at least two stages, it is possible to prevent the elastic piece from being damaged by the sudden deformation. it can.
Further, since the tip of the elastic piece comes into contact with the introduction protrusion, there is no backlash until the tip of the elastic piece is locked to the second structural member, and an unstable state can be prevented.

以上、本発明について簡潔に説明した。更に、以下に説明される発明を実施するための形態（以下、「実施形態」という。）を添付の図面を参照して通読することにより、本発明の詳細は更に明確化されるであろう。   The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through a mode for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings. .

図１は本発明に係る係止構造が採用された自動車用メータの一実施形態の正面図である。FIG. 1 is a front view of an embodiment of an automotive meter in which a locking structure according to the present invention is employed. 図２は図１に示した自動車用メータにおける第１の構造材の弾性片と第２の構造材の係止突起との係合前の状態の斜視図である。FIG. 2 is a perspective view of a state before the engagement between the elastic piece of the first structural member and the locking protrusion of the second structural member in the automobile meter shown in FIG. 図３は図２に示した第１の構造材の弾性片と第２の構造材の係止突起との係合途中の状態の斜視図である。FIG. 3 is a perspective view of a state in the middle of engagement between the elastic piece of the first structural member and the locking protrusion of the second structural member shown in FIG. 図４は図２に示した第１の構造材の弾性片と第２の構造材の係止突起との係合が完了した状態の斜視図である。FIG. 4 is a perspective view showing a state where the engagement between the elastic piece of the first structural member and the locking protrusion of the second structural member shown in FIG. 2 is completed. 図５は従来の係止構造の係止前の状態の斜視図である。FIG. 5 is a perspective view of a conventional locking structure in a state before locking. 図６は図５に示した第１の構造材の弾性片と第２の構造材の係止突起との係合途中の状態の斜視図である。FIG. 6 is a perspective view of a state in the middle of engagement between the elastic piece of the first structural member and the locking protrusion of the second structural member shown in FIG. 図７は図５に示した第１の構造材の弾性片と第２の構造材の係止突起との係合が完了した状態の斜視図である。FIG. 7 is a perspective view showing a state in which the engagement between the elastic piece of the first structural member and the locking protrusion of the second structural member shown in FIG. 5 is completed.

以下、本発明に係る係止構造の好適な実施形態について、図面を参照して詳細に説明する。   DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a locking structure according to the present invention will be described in detail with reference to the drawings.

図１〜図４は本発明に係る係止構造の一実施形態を示したもので、図１は本発明の係止構造が採用された自動車用メータの一実施形態の正面図、図２は図１に示した自動車用メータにおける第１の構造材の弾性片と第２の構造材の係止突起との係合前の状態の斜視図、図３は図２に示した第１の構造材の弾性片と第２の構造材の係止突起との係合途中の状態の斜視図、図４は図２に示した第１の構造材の弾性片と第２の構造材の係止突起との係合が完了した状態の斜視図である。   1 to 4 show an embodiment of a locking structure according to the present invention. FIG. 1 is a front view of an embodiment of an automobile meter that employs the locking structure of the present invention. FIG. FIG. 3 is a perspective view of a state before the engagement between the elastic piece of the first structural member and the locking protrusion of the second structural member in the automobile meter shown in FIG. 1, and FIG. 3 shows the first structure shown in FIG. The perspective view of the state in the middle of engagement with the elastic piece of a material and the latching protrusion of a 2nd structural material, FIG. 4 is latching of the elastic piece of a 1st structural material and 2nd structural material which were shown in FIG. It is a perspective view in the state where engagement with a projection was completed.

図１に示した自動車用メータ１は、第１の構造材である見返し１０に、多数のメータ類を配置したコンビネーションメータである。見返し１０に配置されるメータ類は、図示のように、水温計２１、速度計２２、シフトインジケータ２３、左旋回指示灯２４、右旋回指示灯２５、回転計２６、燃料計２７、トリップメータ２８などである。   The automobile meter 1 shown in FIG. 1 is a combination meter in which a number of meters are arranged on a payback 10 that is a first structural material. As shown in the figure, the meters arranged at the turn-back 10 are a water temperature meter 21, a speedometer 22, a shift indicator 23, a left turn indicator light 24, a right turn indicator light 25, a tachometer 26, a fuel meter 27, a trip meter. 28.

見返し１０は、第２の構造材であるメータケース３０の前面に突き合わせて連結される。メータケース３０の前面に見返し１０を突き合わすと、本実施形態の係止構造４０により、これらの構造材相互が連結された状態になる。   The facing 10 is connected to the front surface of the meter case 30 which is the second structural member. When the facing 10 is abutted against the front surface of the meter case 30, these structural members are connected to each other by the locking structure 40 of the present embodiment.

本実施形態の係止構造４０は、図２に示すように、係止突起３１と、弾性片１１と、係止孔１２と、導入突起３２と、を備えている。   As shown in FIG. 2, the locking structure 40 of the present embodiment includes a locking protrusion 31, an elastic piece 11, a locking hole 12, and an introduction protrusion 32.

係止突起３１は、見返し１０に突き合わされるメータケース３０の上端縁の外周面に装備されている。また、係止突起３１は、見返し１０及びメータケース３０による構造材相互の突き合わせ方向（図２の矢印Ｚ２方向）と直交する方向（図２の矢印Ｘ２方向）に突出して装備されている。   The locking protrusion 31 is provided on the outer peripheral surface of the upper end edge of the meter case 30 that is abutted against the facing 10. Further, the locking projection 31 is provided so as to protrude in a direction (arrow X2 direction in FIG. 2) perpendicular to the mutual abutting direction (arrow Z2 direction in FIG. 2) of the structural member 10 and the meter case 30.

係止突起３１の前端面３１１は、見返し１０とメータケース３０との突き合わせ時に、見返し１０に装備された弾性片１１の先端１１１が衝突する面である。この前端面３１１は、当接する先端１１１を係止突起３１の上端面３１２（頂部の面）３１２にすくい上げる（ずり上げる）テーパ面に形成されている。   The front end surface 311 of the locking projection 31 is a surface on which the tip 111 of the elastic piece 11 mounted on the facing 10 collides when the facing 10 and the meter case 30 are brought into contact with each other. The front end surface 311 is formed as a tapered surface that scoops (slids up) the abutting tip 111 to the upper end surface 312 (top surface) 312 of the locking projection 31.

また、係止突起３１の前端面３１１を挟む一対の側面３１３は、図４に示すように、挟角θ１が鋭角になるように、テーパが付与されている。この一対の側面３１３に付与したテーパによって、係止突起３１の上端面３１２は、乗り上げた弾性片１１の先端１１１の摺動接触面が徐々に増加する台形状になっている。   Further, the pair of side surfaces 313 sandwiching the front end surface 311 of the locking protrusion 31 is tapered so that the included angle θ1 is an acute angle as shown in FIG. Due to the taper applied to the pair of side surfaces 313, the upper end surface 312 of the locking protrusion 31 has a trapezoidal shape in which the sliding contact surface of the tip 111 of the elastic piece 11 that has ridden gradually increases.

弾性片１１は、図２に示すように、見返し１０に突き合わせ方向（図２の矢印Ｚ２方向）に沿って延設されている。また、弾性片１１は、見返し１０及びメータケース３０の構造材相互の突き合わせ時に、先端側が撓み変形して、係止突起３１に乗り上げ可能に形成されている。   As shown in FIG. 2, the elastic piece 11 is extended along the facing direction 10 (in the direction of arrow Z <b> 2 in FIG. 2). The elastic piece 11 is formed to be able to ride on the locking projection 31 by bending and deforming the distal end side when the facing 10 and the meter case 30 are brought into contact with each other.

係止孔１２は、弾性片１１の先端側に形成された開口である。この係止孔１２は、見返し１０及び３０の構造材相互の突き合わせが完了したときに、弾性片１１の復元力で係止突起３１が係合する開口である。   The locking hole 12 is an opening formed on the distal end side of the elastic piece 11. The locking hole 12 is an opening with which the locking protrusion 31 is engaged by the restoring force of the elastic piece 11 when the facing members 10 and 30 are finished to face each other.

導入突起３２は、係止突起３１と並ぶように、メータケース３０に備えられている。この導入突起３２は、図２に示すように、係止突起３１の弾性片１１が導入する側に装備されている。この導入突起３２は、係止突起３１よりも低い高さに突設されている。この導入突起３２は、弾性片１１の先端１１１を、係止突起３１の突出高さの中間位置へ誘導する。   The introduction protrusion 32 is provided in the meter case 30 so as to be aligned with the locking protrusion 31. As shown in FIG. 2, the introduction protrusion 32 is provided on the side where the elastic piece 11 of the locking protrusion 31 is introduced. The introduction protrusion 32 protrudes at a height lower than that of the locking protrusion 31. The introduction protrusion 32 guides the tip 111 of the elastic piece 11 to an intermediate position of the protrusion height of the locking protrusion 31.

本実施形態の場合、導入突起３２は、係止突起３１の前端面３１１に連続していて、係止突起３１と一体の突起形状に形成されている。   In the case of this embodiment, the introduction protrusion 32 is continuous with the front end surface 311 of the locking protrusion 31, and is formed in a protruding shape that is integral with the locking protrusion 31.

本実施形態の場合、導入突起３２上に弾性片１１の先端１１１が乗り上げたとき、先端１１１の摺動接触面が徐々に増加するように、側面３２３にテーパが付与されている。また、本実施形態の場合、側面３２３のテーパは、係止突起３１における側面３１３のテーパと同一である。   In the case of this embodiment, the side surface 323 is tapered so that the sliding contact surface of the tip 111 gradually increases when the tip 111 of the elastic piece 11 rides on the introduction protrusion 32. In the case of this embodiment, the taper of the side surface 323 is the same as the taper of the side surface 313 in the locking protrusion 31.

以上に説明した一実施形態の係止構造４０では、係止突起３１と係止孔１２との係合によって、見返し１０とメータケース３０とを連結状態にする。   In the locking structure 40 of the embodiment described above, the turn 10 and the meter case 30 are connected by the engagement of the locking protrusion 31 and the locking hole 12.

以上に説明した一実施形態の係止構造４０では、見返し１０とメータケース３０とを突き合わせるとき、見返し１０上の弾性片１１は、まず、図３に示すようにメータケース３０上の係止突起３１の手前に備えられた導入突起３２に乗り上げる。そして、導入突起３２によって係止突起３１の中間の高さ位置に誘導された後、係止突起３１に乗り上げる。   In the locking structure 40 of the embodiment described above, when the facing 10 and the meter case 30 are brought into contact with each other, the elastic piece 11 on the facing 10 is first locked on the meter case 30 as shown in FIG. It rides on the introduction protrusion 32 provided in front of the protrusion 31. Then, after being guided to an intermediate height position of the locking protrusion 31 by the introduction protrusion 32, the board rides on the locking protrusion 31.

即ち、見返し１０の弾性片１１の先端１１１がメータケース３０上の係止突起３１を乗り越える際の弾性片１１は、突出高さの低い導入突起３２を乗り越える段階、次いで、係止突起３１の中間高さから該係止突起３１を乗り越える段階の２段階に分けて撓み変位する。そのため、弾性片１１に作用する曲げ荷重特性は、段階的に上昇する特性となり、一段階で一気に急激に上昇することがない。従って、操作力の急激な変化を防止して操作性を向上させることができる。   That is, the elastic piece 11 when the tip 111 of the elastic piece 11 of the turning 10 gets over the locking protrusion 31 on the meter case 30 gets over the introduction protrusion 32 having a low protruding height, and then the middle of the locking protrusion 31. It bends and displaces in two stages of getting over the locking projection 31 from the height. Therefore, the bending load characteristic that acts on the elastic piece 11 is a characteristic that increases step by step, and does not increase suddenly in one step. Therefore, it is possible to improve the operability by preventing a rapid change in the operating force.

また、メータケース３０上の係止突起３１を乗り越えるまでの弾性片１１の撓み変形は、少なくとも、２段階に分けて徐々に大きくなるため、急激な撓み変形による弾性片１１の破損を防止することができる。
また、弾性片１１の先端１１１が導入突起３２に接することで、弾性片１１の先端１１１がメータケース３０に係止されるまでのガタツキがなく、不安定な状態を防止できる。 In addition, since the bending deformation of the elastic piece 11 until it gets over the locking protrusion 31 on the meter case 30 is gradually increased at least in two stages, the elastic piece 11 is prevented from being damaged by the sudden bending deformation. Can do.
In addition, since the tip 111 of the elastic piece 11 is in contact with the introduction protrusion 32, there is no backlash until the tip 111 of the elastic piece 11 is locked to the meter case 30, and an unstable state can be prevented.

また、以上に説明した一実施形態の係止構造４０では、弾性片１１が導入突起３２に乗り上がって、導入突起３２上を摺動するとき、摺動が進むに従って弾性片１１の先端１１１と導入突起３２との摺動接触面が徐々に増加するため、摺動抵抗は摺動が進むに従って徐々に増大する負荷特性となる。即ち、操作時に急激な抵抗変化による操作性の低下がなく、弾性片１１の先端１１１をスムーズに係止突起３１に誘導することができる。   Further, in the locking structure 40 of the embodiment described above, when the elastic piece 11 rides on the introduction protrusion 32 and slides on the introduction protrusion 32, the tip 111 of the elastic piece 11 and Since the sliding contact surface with the introduction protrusion 32 gradually increases, the sliding resistance has a load characteristic that gradually increases as the sliding progresses. That is, the operability is not deteriorated due to a sudden resistance change during operation, and the tip 111 of the elastic piece 11 can be smoothly guided to the locking protrusion 31.

従って、弾性片１１の先端１１１が係止突起３１に突き当たる前の状態を仮装着状態とすると、仮装着状態への移行をスムーズにすることができる。   Therefore, when the state before the tip 111 of the elastic piece 11 hits the locking projection 31 is set as the temporary mounting state, the transition to the temporary mounting state can be made smooth.

更に、以上に説明した一実施形態の係止構造４０は、自動車メータにおける見返し１０とメータケース３０との連結用に装備されていて、スムーズな操作性で、見返しとメータケースとを連結状態にすることができる。   Furthermore, the locking structure 40 according to the embodiment described above is provided for connecting the turn-back 10 and the meter case 30 in the automobile meter so that the turn-back and the meter case are connected to each other with smooth operability. can do.

また、メータケース上の係止突起３１を乗り越えるまでの弾性片１１の撓み変形は、少なくとも、２段階に分けて徐々に大きくなるため、急激な撓み変形による弾性片１１の破損を防止することができ、安心して見返し１０とメータケース３０３とを連結状態にすることができる。   In addition, since the bending deformation of the elastic piece 11 until it gets over the locking projection 31 on the meter case is gradually increased at least in two stages, it is possible to prevent the elastic piece 11 from being damaged due to sudden bending deformation. This is possible, and the payback 10 and the meter case 303 can be connected to each other with peace of mind.

なお、本発明は、上述した実施形態に限定されるものではなく、適宜、変形、改良、等が可能である。その他、上述した実施形態における各構成要素の材質、形状、寸法、数、配置箇所、等は本発明を達成できるものであれば任意であり、限定されない。
例えば、上記実施形態では、係止突起３１と導入突起３２とが一体に連結して設けられていたが、導入突起３２を、係止突起３１とは別個の独立した突起に形成しても良い。 In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimensions, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.
For example, in the above-described embodiment, the locking protrusion 31 and the introduction protrusion 32 are integrally connected, but the introduction protrusion 32 may be formed as an independent protrusion separate from the locking protrusion 31. .

また、本発明に係る係止構造で連結する部材は、自動車用メータにおける見返しとメータケースとに限らない。本発明に係る係止構造は、自動車用メータを構成して互いに突き合わされる各種の構造材間に摘要可能である。また、自動車用メータに限らず、各種の装置にも、摘要を拡げることができる。   Moreover, the member connected with the latching structure which concerns on this invention is not restricted to the turning in a meter for motor vehicles, and a meter case. The locking structure according to the present invention can be summarized between various structural materials that constitute an automobile meter and are faced to each other. Moreover, the summary can be extended not only to automobile meters but also to various devices.

ここで、上述した本発明に係る係止構造の実施形態の特徴をそれぞれ以下［１］〜［３］に簡潔に纏めて列記する。   Here, the features of the embodiment of the locking structure according to the present invention described above are briefly summarized and listed in the following [1] to [3], respectively.

［１］ 第１の構造材（１０）に突き合わされる第２の構造材（３０）に装備された係止突起（３１）であって、前記構造材相互の突き合わせ方向と直交する方向に突出して装備された係止突起（３１）と、
前記第１の構造材（１０）に前記突き合わせ方向に沿って延設された弾性片（１１）であって、前記構造材相互の突き合わせ時に先端側が撓み変形して前記係止突起（３１）に乗り上げ可能な弾性片（１１）と、
前記弾性片（１１）の先端（１１１）側に形成された係止孔（１２）であって前記構造材相互の突き合わせが完了したときに前記弾性片（１１）の復元力で前記係止突起（３１）が係合する係止孔（１２）と、
を備えて、前記係止突起（３１）と前記係止孔（１２）との係合によって構造材相互が連結状態にする係止構造であって、
前記第２の構造材（３０）は、前記係止突起（３１）の前記弾性片（１１）が導入する側に装備された突起であって、前記係止突起（３１）よりも低い高さに突設されていて前記弾性片（１１）の前記先端（１１１）を前記係止突起（３１）の突出高さの中間位置へ誘導する導入突起（３２）を備えたことを特徴とする係止構造。 [1] A locking projection (31) provided on the second structural member (30) that is abutted against the first structural member (10), and projects in a direction perpendicular to the abutting direction of the structural members. A locking projection (31) equipped with
An elastic piece (11) extending along the abutting direction on the first structural material (10), wherein the distal end side is bent and deformed when the structural materials are abutted with each other, and the locking protrusion (31) is formed. An elastic piece (11) that can be mounted;
A locking hole (12) formed on the distal end (111) side of the elastic piece (11), and the locking protrusion by the restoring force of the elastic piece (11) when the butting between the structural members is completed A locking hole (12) with which (31) engages;
A locking structure in which the structural members are connected to each other by engagement between the locking protrusion (31) and the locking hole (12),
The second structural member (30) is a protrusion provided on the side of the locking protrusion (31) where the elastic piece (11) is introduced, and has a lower height than the locking protrusion (31). And an introduction protrusion (32) for guiding the tip (111) of the elastic piece (11) to an intermediate position of the protrusion height of the locking protrusion (31). Stop structure.

［２］ 前記導入突起（３２）は、前記導入突起（３２）上に前記弾性片（１１）の前記先端（１１１）が乗り上げたとき、前記先端（１１１）の摺動接触面が徐々に増加するように、側面（３２３）にテーパが付与されていることを特徴とする上記［１］に記載の係止構造。   [2] In the introduction protrusion (32), when the tip (111) of the elastic piece (11) rides on the introduction protrusion (32), the sliding contact surface of the tip (111) gradually increases. As described above, the locking structure according to the above [1], wherein the side surface (323) is tapered.

［３］ 前記第１の構造材（１０）は自動車用メータにおける見返しであり、前記第２の構造材（３０）は前記見返しが突き合わされるメータケース（３０）であることを特徴とする上記［１］又は［２］に記載の係止構造。   [3] The first structural member (10) is a turnback in an automobile meter, and the second structural member (30) is a meter case (30) against which the turnover is abutted. The locking structure according to [1] or [2].

１０ 見返し（第１の構造材）
１１ 弾性片
１２ 係止孔
３０ メータケース（第２の構造材）
３１ 係止突起
３２ 導入突起
１１１ 先端
３２３ 側面 10 Look back (first structural material)
11 Elastic piece 12 Locking hole 30 Meter case (second structural material)
31 Locking projection 32 Introduction projection 111 Tip 323 Side

Claims (2)

第１の構造材に突き合わされる第２の構造材に装備された係止突起であって、前記構造材相互の突き合わせ方向と直交する方向に突出して装備された係止突起と、
前記第１の構造材に前記突き合わせ方向に沿って延設された弾性片であって、前記構造材相互の突き合わせ時に先端側が撓み変形して前記係止突起に乗り上げ可能な弾性片と、
前記弾性片の先端側に形成された係止孔であって前記構造材相互の突き合わせが完了したときに前記弾性片の復元力で前記係止突起が係合する係止孔と、
を備えて、前記係止突起と前記係止孔との係合によって構造材相互を連結状態にする係止構造であって、
前記第２の構造材は、前記係止突起の前記弾性片が導入する側に装備された突起であって、前記係止突起よりも低い高さに突設されていて前記弾性片の前記先端を前記係止突起の突出高さの中間位置へ誘導する導入突起を備え、
前記係止突起及び前記導入突起は、前記突き合わせ方向に連続する一体の突起形状を有し、
前記係止突起の上端面と前記導入突起の上端面とは、前記係止突起における前記弾性片が導入する側の端面を介して段差を構成し、
前記係止突起及び前記導入突起における側方の同じ側の側面同士は、両側共に、連続する一つの平面を構成し、
前記係止突起及び前記導入突起の突出方向からみたとき、一対の前記平面を構成する前記係止突起及び前記導入突起の一対の側面のそれぞれが、前記突き合わせ方向における前記導入突起側から前記係止突起側へ移動するにつれて互いに遠ざかる方向に、前記突き合わせ方向に対して傾斜し、前記係止突起及び前記導入突起のそれぞれの上端面が台形状を有していることを特徴とする係止構造。 A locking projection provided on the second structural material to be abutted against the first structural material, the locking projection provided to project in a direction orthogonal to the abutting direction between the structural materials; and
An elastic piece extending along the abutting direction on the first structural material, the distal end side being bent and deformed at the time of abutting between the structural materials, and an elastic piece capable of riding on the locking projection;
A locking hole formed on a distal end side of the elastic piece, and a locking hole with which the locking protrusion engages with a restoring force of the elastic piece when the butting between the structural members is completed;
A locking structure for connecting the structural members to each other by engagement between the locking protrusion and the locking hole,
The second structural member is a protrusion provided on the side of the locking protrusion on which the elastic piece is introduced, and protrudes at a height lower than the locking protrusion, so that the tip of the elastic piece Including an introduction protrusion for guiding the engagement protrusion to an intermediate position of the protrusion height of the locking protrusion,
The locking protrusion and the introduction protrusion have an integral protrusion shape continuous in the abutting direction,
The upper end surface of the locking projection and the upper end surface of the introduction projection constitute a step through an end surface of the locking projection on the side where the elastic piece is introduced,
The side surfaces on the same side of the locking projection and the introduction projection constitute a continuous plane on both sides,
When viewed from the protruding direction of the locking protrusion and the introduction protrusion, each of the pair of side surfaces of the locking protrusion and the introduction protrusion constituting the pair of flat surfaces is locked from the introduction protrusion side in the abutting direction. A locking structure , wherein the locking projection is inclined with respect to the abutting direction in a direction away from each other as it moves toward the projection, and each upper end surface of the locking projection and the introduction projection has a trapezoidal shape . 前記第１の構造材は自動車用メータにおける見返しであり、前記第２の構造材は前記見返しが突き合わされるメータケースであることを特徴とする請求項１に記載の係止構造。 Said first structural member is looking back in the meter for an automobile, said second structural member is a locking structure according to claim 1, characterized in that the meter case where the dial is matched.
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JP6375530B2 (en) 2015-02-04 2018-08-22 カルソニックカンセイ株式会社 Vehicle instrumentation
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JPS5840609U (en) * 1981-09-09 1983-03-17 日本電気ホームエレクトロニクス株式会社 Two-member joint structure
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JP2003239920A (en) * 2002-02-19 2003-08-27 Seiko Epson Corp Snap-fit joining structure and molded product
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