JP2019218001A

JP2019218001A - Cover mounting structure

Info

Publication number: JP2019218001A
Application number: JP2018118760A
Authority: JP
Inventors: 博文森川; Hirobumi Morikawa; 伸也井上; Shinya Inoue
Original assignee: Daihatsu Motor Co Ltd
Current assignee: Daihatsu Motor Co Ltd
Priority date: 2018-06-22
Filing date: 2018-06-22
Publication date: 2019-12-26

Abstract

To provide a cover mounting structure capable of preventing erroneous mounting of a cover.SOLUTION: The cover mounting structure 1 comprises a body 2 provided with a recess 20 and a cover 3 mounted to the body 2 to close the recess 20. The cover 3 comprises a first engaging part 31 provided on the back surface 3b side of the cover body 30. The body 2 comprises a second engaging part 21 provided inside the recess 20, with which the first engaging part 31 of the cover 3 is engaged. Further, the cover 3 comprises a protrusion 35 protruding from the back surface 3b of the cover 3. The body 2 comprises a stopper part 25 preventing erroneous mounting of the cover 3 to the recess 20, since the protrusion 35 of the cover 3 provided inside the recess 20 to be disposed in an inappropriate direction with respect to the recess 20 is forced to abut thereon. When the cover 3 is disposed in an inappropriate direction with respect to the recess 20, the first engaging part 31 can be prevented to be engaged with a portion other than the second engaging portion 21 by bringing the protrusion 35 into contact with the stopper part 25.SELECTED DRAWING: Figure 1

Description

本発明は、本体部に設けられた凹部をカバーで塞ぐカバーの取付構造に関する。 The present invention relates to a cover mounting structure for closing a recess provided in a main body with a cover.

特許文献１は、本体部に設けられた正方形状の開口部に、正方形状のカバー本体を取り付けて、カバーで開口部を塞ぐ構造を開示する。このカバーは、カバー本体の裏面側に一対の取付け片を備える。カバーの両取付け片の係止爪を本体部の開口縁部に係止させることで、上記カバーを本体部に固定する。 Patent Literature 1 discloses a structure in which a square cover body is attached to a square opening provided in a main body, and the opening is closed with a cover. This cover includes a pair of mounting pieces on the back side of the cover body. The cover is fixed to the main body by engaging the locking claws of both mounting pieces of the cover with the opening edge of the main body.

特開２００５−２７１６２６号公報JP 2005-271626 A

本体部とは独立したカバーを本体部に取り付けて、本体部の凹部をカバーで覆う構造において、カバーの誤装着を防止することが望まれている。特許文献１に記載されるように凹部に対して適正な向きが決められたカバーであるものの、カバー本体の平面形状が正方形といった回転対称な形状であると、誤装着が生じ易い。 In a structure in which a cover independent of the main body is attached to the main body to cover a concave portion of the main body with the cover, it is desired to prevent erroneous mounting of the cover. Although the cover has a proper orientation with respect to the concave portion as described in Patent Literature 1, if the cover main body has a rotationally symmetric shape such as a square shape, erroneous mounting is likely to occur.

また、カバーの用途によっては、本体部にカバーを装着後、カバーが簡単に外れ難いことが望まれる。例えば、自動車に設けられるシフトロック解除ボタンのカバーは、ボタン使用時以外にはカバーが簡単に外れないことが望まれる。このような用途では、誤装着が簡単に判別できることが好ましい。誤装着であることが分かり難い場合、誤装着されたカバーでは所定の係合強度が発揮されずに、カバーが経時的に外れることが考えられるからである。また、誤装着されたカバーが本体部よりも突出したり、凹んだ状態であったりすると、美観を損なう。 Further, depending on the use of the cover, it is desired that the cover is not easily detached after the cover is attached to the main body. For example, it is desired that the cover of the shift lock release button provided on the automobile does not easily come off except when the button is used. In such applications, it is preferable that erroneous mounting can be easily determined. This is because, when it is difficult to recognize that the cover is erroneously attached, the cover may be detached with time without the predetermined engagement strength being exhibited by the cover that is erroneously attached. Further, if the cover that is erroneously mounted protrudes from the main body or is in a recessed state, the appearance is impaired.

そこで、本発明の目的の一つは、カバーの誤装着を防止できるカバーの取付構造を提供することにある。 Therefore, one of the objects of the present invention is to provide a cover mounting structure that can prevent erroneous mounting of the cover.

本発明の一態様に係るカバーの取付構造は、
凹部が設けられた本体部と、前記本体部に取り付けられて前記凹部を塞ぐカバーとを備え、
前記カバーは、
カバー本体の裏面側に設けられた第一係合部と、
前記裏面から突出する突起部とを備え、
前記本体部は、
前記凹部の内側に設けられ、前記凹部に対して適正な向きに配置された前記カバーの前記第一係合部が係合される第二係合部と、
前記凹部の内側に設けられ、前記凹部に対して不適正な向きに配置された前記カバーの前記突起部が当接されることで、前記カバーの前記凹部への不適正な装着を阻止するストッパ部とを備える。 The cover mounting structure according to one embodiment of the present invention,
A main body provided with a concave portion, and a cover attached to the main body portion and closing the concave portion,
The cover,
A first engagement portion provided on the back side of the cover body,
A projection protruding from the back surface,
The main body is
A second engaging portion, which is provided inside the concave portion and is engaged with the first engaging portion of the cover arranged in an appropriate direction with respect to the concave portion,
A stopper that is provided inside the concave portion and that prevents the cover from being improperly mounted in the concave portion by being brought into contact with the protrusion of the cover that is disposed in an inappropriate direction with respect to the concave portion. Unit.

（Ａ）上記のカバーの取付構造の一例として、
前記カバーは、一対の前記第一係合部を備え、
前記第二係合部は、前記凹部を形成する内周壁の端面の一部であり、
各第一係合部は、
前記裏面から離れる方向に延びる脚部と、前記脚部の延伸方向に直交又は鋭角に交差するように設けられ、前記第二係合部に係止される返し部とを備え、
各返し部の向きが逆向きになるように、前記カバー本体の対向位置に離間して設けられる形態が挙げられる。 (A) As an example of the mounting structure of the cover,
The cover includes a pair of the first engagement portions,
The second engagement portion is a part of an end surface of an inner peripheral wall forming the concave portion,
Each first engagement portion is
A leg extending in a direction away from the back surface, and a return portion provided so as to intersect orthogonally or at an acute angle to a direction in which the leg extends, and
A mode is provided in which the direction of each return portion is opposite to that of the cover body and is spaced apart from the cover body.

（Ｂ）上記（Ａ）のカバーの取付構造の一例として、
前記カバーは、
前記カバー本体の表面に開口し、前記カバーを取り外す工具が差し込まれる作業用凹部が設けられ、
前記突起部は、前記裏面における前記作業用凹部に対応した凸部に一体に設けられる形態が挙げられる。 (B) As an example of the cover mounting structure of (A),
The cover,
An opening is provided on the surface of the cover body, and a working recess into which a tool for removing the cover is inserted is provided,
The projection may be provided integrally with a projection corresponding to the work recess on the back surface.

（Ｃ）上記のカバーの取付構造の一例として、
前記カバーは、樹脂の成形体であり、前記突起部にゲート跡を有する形態が挙げられる。 (C) As an example of the mounting structure of the cover,
The cover is a resin molded body, and has a form in which the protrusion has a gate mark.

（Ｄ）上記のカバーの取付構造の一例として、
前記カバー本体の平面形状は回転対称形状である形態が挙げられる。 (D) As an example of the cover mounting structure,
The cover body may have a rotationally symmetric planar shape.

上記のカバーの取付構造では、カバーを本体部の凹部に取り付ける際にカバーが凹部に対して不適正な向きに配置されると、カバーの突起部が本体部のストッパ部に当接する。この当接によって、カバーの不適正な装着、例えばカバーの第一係合部が本体部に係合することなくカバー本体が凹部に嵌り込んだり、カバーの第一係合部が本体部の第二係合部以外の箇所に係合されたりすること等を阻止する。そのため、作業者は、カバーを不適切な向きに配置したことを容易に把握できる。一方、カバーが凹部に対して適正な向きに配置されると、第一係合部と第二係合部とを係合でき、カバーを凹部に装着できる。従って、上記のカバーの取付構造によれば、カバーの誤装着を防止できる。 In the cover mounting structure described above, when the cover is placed in an inappropriate direction with respect to the concave portion when the cover is mounted on the concave portion of the main body portion, the protrusion of the cover comes into contact with the stopper portion of the main body portion. By this contact, improper mounting of the cover, for example, the cover main body fits into the concave portion without the first engagement portion of the cover engaging with the main body portion, or the first engagement portion of the cover is It prevents engagement with a portion other than the two engagement portions. Therefore, the operator can easily grasp that the cover is arranged in an inappropriate direction. On the other hand, when the cover is arranged in an appropriate direction with respect to the concave portion, the first engaging portion and the second engaging portion can be engaged, and the cover can be mounted in the concave portion. Therefore, according to the above-described cover mounting structure, erroneous mounting of the cover can be prevented.

上述の（Ａ）の形態では、カバーが本体部に適正に装着されて、第一係合部と第二係合部とが係合されることで、カバーの抜き取り方向の移動が規制されるため、カバーが本体部から外れ難い。このような形態は、自動車に設けられるシフトロック解除ボタンのカバーの取り付けに好適に利用できる。 In the above-described embodiment (A), the cover is properly attached to the main body, and the first engagement portion and the second engagement portion are engaged with each other, so that movement of the cover in the removing direction is restricted. Therefore, it is difficult for the cover to come off the main body. Such a form can be suitably used for attaching a cover of a shift lock release button provided on an automobile.

上述の（Ｂ）の形態では、上述のように返し部によってカバーが本体部から外れ難くても、作業用凹部に工具を差し込むことでカバーを外し易く、作業性に優れる。 In the above-described embodiment (B), even if the cover is difficult to be detached from the main body by the return portion as described above, the cover is easily removed by inserting a tool into the work recess, and the workability is excellent.

上述の（Ｃ）の形態では、カバーの成形過程で突起部にゲートを設定しているといえる。このような形態は、カバーを本体部に装着した状態では、ゲート跡がカバー本体の裏面側に配置されるため、カバーの表面側から見えず、美観に優れる。また、この形態は、例えばカバー本体の側面にゲートを設定する場合に比較して本体部とカバーとの間の隙間を狭くできるため、美観に優れる。 In the above-described embodiment (C), it can be said that the gate is set on the protrusion in the process of forming the cover. In such a configuration, when the cover is mounted on the main body, the gate mark is arranged on the back surface side of the cover main body, so that it is not seen from the front surface side of the cover, and the appearance is excellent. In addition, this form is excellent in aesthetics because the gap between the main body and the cover can be narrowed as compared with a case where a gate is set on the side surface of the cover main body, for example.

上述の（Ｄ）の形態は、カバー本体の平面形状が回転対称形状であるため、カバーを凹部に対して不適正な向きに配置する虞があるものの、上述のカバーの突起部と本体部のストッパ部との当接によって誤装着を防止できる。 In the form (D) described above, since the cover body has a rotationally symmetrical planar shape, the cover may be arranged in an inappropriate direction with respect to the concave portion. Erroneous mounting can be prevented by contact with the stopper portion.

実施形態１のカバーの取付構造を示す概略正面図である。FIG. 2 is a schematic front view illustrating a mounting structure of a cover according to the first embodiment. （Ａ）は実施形態１のカバーの取付構造に備えられるカバーの正面図、（Ｂ）は本体部の凹部近傍を示す正面図である。(A) is a front view of a cover provided in the cover mounting structure of Embodiment 1, and (B) is a front view showing the vicinity of a concave portion of a main body. 実施形態１のカバーの取付構造に備えられるカバーの斜視図であり、（Ａ）は表面側から見た状態を示し、（Ｂ）は裏面側から見た状態を示す。It is a perspective view of the cover provided in the cover mounting structure of Embodiment 1, (A) shows the state seen from the front side, (B) shows the state seen from the back side. 実施形態１のカバーの取付構造において、カバーの突起部と本体部のストッパ部との関係を説明する断面説明図であり、（Ａ）はカバーが本体部に適正に装着された状態を示し、（Ｂ）はカバーが不適正な向きに配置された状態を示す。FIG. 6 is a cross-sectional explanatory view illustrating a relationship between a protrusion of the cover and a stopper of the main body in the cover mounting structure according to the first embodiment, where (A) shows a state where the cover is properly mounted on the main body; (B) shows a state where the cover is arranged in an inappropriate direction. 実施形態１のカバーの取付構造において、カバーが本体部に適正に装着されたときの第一係合部と第二係合部との係合状態を示す断面図である。FIG. 5 is a cross-sectional view illustrating an engagement state between a first engagement portion and a second engagement portion when the cover is properly attached to the main body in the cover mounting structure of the first embodiment. （Ａ）は実施形態２のカバーの取付構造に備えられるカバーの正面図、（Ｂ）は本体部の凹部近傍を示す正面図である。(A) is a front view of a cover provided in the cover mounting structure of Embodiment 2, and (B) is a front view showing the vicinity of a concave portion of a main body.

以下、図面を参照して、本発明のカバーの取付構造を具体的に説明する。図中、同一符号は同一名称物を示す。 Hereinafter, the cover mounting structure of the present invention will be specifically described with reference to the drawings. In the drawings, the same reference numerals indicate the same names.

［実施形態１］
図１〜図５を参照して、実施形態１のカバーの取付構造１を説明する。
図４（Ａ），（Ｂ）は、図１に示すカバーの取付構造において、（ＩＶ）−（ＩＶ）切断線で切断した断面を示す。
図５は、図１に示すカバーの取付構造において、（Ｖ）−（Ｖ）切断線で切断した断面を示す。 [Embodiment 1]
The cover mounting structure 1 according to the first embodiment will be described with reference to FIGS.
FIGS. 4A and 4B show cross sections of the cover mounting structure shown in FIG. 1 taken along the line (IV)-(IV).
FIG. 5 is a cross-sectional view of the cover mounting structure shown in FIG. 1 taken along a line (V)-(V).

〈概要〉
実施形態１のカバーの取付構造１は、図１に示すように凹部２０が設けられた本体部２と（図２（Ｂ）も参照）、本体部２に取り付けられて凹部２０を塞ぐカバー３とを備える。カバー３は、カバー本体３０の裏面３ｂ側に設けられた第一係合部３１を備える(図３（Ｂ）)。本体部２は、凹部２０の内側に設けられ、カバー３の第一係合部３１が係合される第二係合部２１を備える（図２（Ｂ））。両係合部２１，３１が係合されることで、カバー３は本体部２に装着される（図１，図５）。両係合部２１，３１の係合状態を解除すれば（詳細は後述）、カバー３を本体部２から外すことができる。 <Overview>
The cover mounting structure 1 according to the first embodiment includes a main body 2 provided with a concave portion 20 as shown in FIG. 1 (see also FIG. 2B), and a cover 3 attached to the main body portion 2 and closing the concave portion 20. And The cover 3 includes a first engaging portion 31 provided on the back surface 3b side of the cover main body 30 (FIG. 3B). The main body 2 includes a second engaging portion 21 that is provided inside the concave portion 20 and is engaged with the first engaging portion 31 of the cover 3 (FIG. 2B). The cover 3 is attached to the main body 2 by the engagement of the two engaging portions 21 and 31 (FIGS. 1 and 5). When the engagement state of the engagement portions 21 and 31 is released (details will be described later), the cover 3 can be removed from the main body 2.

特に、実施形態１のカバーの取付構造１は、カバー３の誤装着を防止可能な構成を備える。具体的には、カバー３は、カバー３の裏面３ｂから突出する突起部３５を備える（図３（Ｂ））。本体部２は、凹部２０の内側に設けられるストッパ部２５を備える（図４（Ｂ））。ストッパ部２５は、凹部２０に対して、カバー３が不適正な向きに配置されると、突起部３５が当接されることで、カバー３の凹部２０への不適正な装着を阻止する。一方、凹部２０に対して、カバー３が適正な向きに配置されると、ストッパ部２５が突起部３５に接触せずに凹部２０内に挿入され（図４（Ａ））、両係合部２１，３１は係合される（図５）。 In particular, the cover mounting structure 1 according to the first embodiment has a configuration capable of preventing the cover 3 from being erroneously mounted. Specifically, the cover 3 includes a protrusion 35 protruding from the back surface 3b of the cover 3 (FIG. 3B). The main body 2 includes a stopper 25 provided inside the recess 20 (FIG. 4B). When the cover 3 is placed in an inappropriate direction with respect to the recess 20, the stopper 25 prevents the cover 3 from being improperly mounted in the recess 20 by abutting the protrusion 35. On the other hand, when the cover 3 is disposed in an appropriate direction with respect to the concave portion 20, the stopper portion 25 is inserted into the concave portion 20 without contacting the protrusion portion 35 (FIG. 4A), and 21 and 31 are engaged (FIG. 5).

本例の本体部２は、自動車に設けられるシフトレバー（図示せず）の周辺を覆うインストルメントパネルの一部である（図１）。本体部２には、その表裏を貫通する複数の貫通孔が設けられている。本例の凹部２０は、上記複数の貫通孔のうちの一つである。シフトレバーの近くにはシフトロック解除ボタン５が設けられる（図２（Ｂ）では解除ボタン５を二点鎖線で仮想的に示す）。凹部２０は、本体部２における解除ボタン５の位置に対応した位置に設けられる。本例のカバー３は、解除ボタン５を覆うものである。カバー３が本体部２から外された状態では、本体部２の表面２ｆ側から凹部２０を見れば、凹部２０内に解除ボタン５が見える。カバー３が本体部２に装着された状態（図１，図５）では、凹部２０がカバー３で塞がれて、解除ボタン５が見えない。通常、カバー３は本体部２に装着された状態（以下、カバー装着状態と呼ぶ）であり、解除ボタン５の使用時には、取り外し工具等を用いてカバー３を外す（詳細は後述）。 The main body 2 of the present embodiment is a part of an instrument panel that covers a periphery of a shift lever (not shown) provided in an automobile (FIG. 1). The main body 2 is provided with a plurality of through holes penetrating the front and back. The recess 20 of this example is one of the plurality of through holes. A shift lock release button 5 is provided near the shift lever (the release button 5 is virtually shown by a two-dot chain line in FIG. 2B). The recess 20 is provided at a position corresponding to the position of the release button 5 in the main body 2. The cover 3 of the present example covers the release button 5. When the cover 3 is detached from the main body 2, the release button 5 can be seen in the concave 20 when the concave 20 is viewed from the front surface 2 f side of the main body 2. When the cover 3 is mounted on the main body 2 (FIGS. 1 and 5), the recess 20 is closed by the cover 3 and the release button 5 cannot be seen. Normally, the cover 3 is mounted on the main body 2 (hereinafter referred to as a cover mounted state). When the release button 5 is used, the cover 3 is removed using a removal tool or the like (details will be described later).

以下、本体部２、カバー３をより詳細に説明する。以下では、カバー３が本体部２に対して適正な向きに配置された状態を基本の向きとして説明する。 Hereinafter, the main body 2 and the cover 3 will be described in more detail. Hereinafter, a state in which the cover 3 is disposed in an appropriate direction with respect to the main body 2 will be described as a basic direction.

〈本体部〉
《概要》
以下、主に図２（Ｂ）を参照して、本体部２を説明する。
本例の本体部２は、上述のように本体部２の表面２ｆから裏面に貫通する凹部２０を備える。また、本体部２は、表面２ｆに設けられた開口縁２ｅから本体部２の内側に向かって延設される内周壁２ｉを備える（図４，図５も参照）。内周壁２ｉは、開口縁２ｅの周方向に沿って筒状に設けられている。この筒状の内周壁２ｉによって凹部２０が形成される。本例の本体部２は、内周壁２ｉから突出するストッパ部２５と、内周壁２ｉに設けられる第二係合部２１とを備える。 <Main unit>
"Overview"
Hereinafter, the main body 2 will be described mainly with reference to FIG.
The main body 2 of the present embodiment includes the recess 20 penetrating from the front surface 2f to the back surface of the main body 2 as described above. The main body 2 also includes an inner peripheral wall 2i extending from the opening edge 2e provided on the front surface 2f toward the inside of the main body 2 (see also FIGS. 4 and 5). The inner peripheral wall 2i is provided in a cylindrical shape along the circumferential direction of the opening edge 2e. The concave portion 20 is formed by the cylindrical inner peripheral wall 2i. The main body 2 of this example includes a stopper 25 protruding from the inner peripheral wall 2i, and a second engaging portion 21 provided on the inner peripheral wall 2i.

《凹部》
本例の凹部２０を形成する内周壁２ｉは、開口面積が表面２ｆから凹部２０の内側に向かって連続的に小さくなるように若干傾斜している。いわば、内周壁２ｉは、凹部２０の内側に向かって先細りする筒状である。カバー装着状態では、内周壁２ｉにカバー３の側面３ｓが対向され（図４，図５）、内周壁２ｉと側面３ｓとの間に隙間が実質的に形成されない（図１）。《Concave》
The inner peripheral wall 2i that forms the concave portion 20 of this example is slightly inclined so that the opening area decreases continuously from the surface 2f toward the inside of the concave portion 20. In other words, the inner peripheral wall 2i has a cylindrical shape that tapers toward the inside of the recess 20. In the cover mounted state, the side surface 3s of the cover 3 faces the inner peripheral wall 2i (FIGS. 4 and 5), and substantially no gap is formed between the inner peripheral wall 2i and the side surface 3s (FIG. 1).

本例の凹部２０は、筒状の内周壁２ｉの軸方向から見た平面形状が正方形に近い長方形状であり、回転対称形状である。長方形状の開口縁２ｅにおける四辺の縁のうち、一辺の縁寄り（図２（Ｂ）では上端縁寄り）にストッパ部２５が設けられている。また、上記四辺の縁のうち、ストッパ部２５が設けられた一辺に直交する二辺の縁寄り（図２（Ｂ）では左側縁寄り、右側縁寄り）にそれぞれ、第二係合部２１を備える。ストッパ部２５と両第二係合部２１とが干渉しないように、これらの形状、大きさ、配置位置が調整される。また、本例の凹部２０は、ストッパ部２５が設けられた一辺の縁の二等分線を中心として、線対称な形状である。 The concave portion 20 of the present example has a rectangular shape whose planar shape when viewed from the axial direction of the cylindrical inner peripheral wall 2i is close to a square, and is rotationally symmetric. Among the four edges of the rectangular opening edge 2e, a stopper 25 is provided near one edge (in FIG. 2B, near the upper edge). In addition, of the four edges, the second engaging portions 21 are respectively located near two edges (close to the left edge and near the right edge in FIG. 2B) orthogonal to one side where the stopper portion 25 is provided. Prepare. The shape, size, and arrangement position of the stopper portion 25 and the two second engagement portions 21 are adjusted so as not to interfere with each other. Further, the concave portion 20 of the present example has a line-symmetric shape with respect to a bisector of one edge where the stopper portion 25 is provided.

その他、本例の内周壁２ｉには、カバー３が適正な配置で本体部２に装着された場合に凹部２０に沈み込むことを防止するために、カバー本体３０を支持する支持部２６が設けられている。本例では、上述の長方形状の開口縁２ｅにおける四つの角部のうち、ストッパ部２５が設けられた一辺の縁から離れた側（図２（Ｂ）では下端縁側）の二つの角部にそれぞれ、支持部２６を備える。本例の各支持部２６は、Ｌ字状の部材であり、一面を、カバー本体３０の支持面とする。各支持面は、カバー本体３０の裏面３ｂの角部を支持できるように、本体部２の表面２ｆに概ね平行に設けられると共に、カバー本体３０の厚さに応じて開口縁２ｅからの深さ位置が調整されている。後述のストッパ部２５は、カバー３が適正な配置である場合、カバー本体３０の支持部としても機能する（図４（Ａ））。 In addition, a support portion 26 for supporting the cover main body 30 is provided on the inner peripheral wall 2i of the present embodiment in order to prevent the cover 3 from sinking into the concave portion 20 when the cover 3 is mounted on the main body 2 in an appropriate arrangement. Have been. In the present example, of the four corners of the above-mentioned rectangular opening edge 2e, two corners on the side (lower edge side in FIG. 2B) away from the edge of one side where the stopper portion 25 is provided. Each has a support portion 26. Each support portion 26 of the present example is an L-shaped member, and one surface is a support surface of the cover body 30. Each support surface is provided substantially parallel to the front surface 2f of the main body 2 so as to support a corner of the back surface 3b of the cover main body 30, and has a depth from the opening edge 2e according to the thickness of the cover main body 30. The position has been adjusted. When the cover 3 is properly arranged, a stopper 25 described later also functions as a support for the cover main body 30 (FIG. 4A).

《ストッパ部》
ストッパ部２５は、上述のようにカバー３が適正な配置である場合、カバー本体３０を支持する機能を有すると共に、カバー３が不適正な配置である場合、カバー３の突起部３５と共に、カバー３の誤装着を防止する機能を有する。 << Stopper part >>
The stopper portion 25 has a function of supporting the cover body 30 when the cover 3 is properly arranged as described above, and together with the protrusion 35 of the cover 3 when the cover 3 is improperly arranged. 3 has a function of preventing erroneous mounting.

本例のストッパ部２５は、平面形状が長方形状の平板部材であり、内周壁２ｉから、内周壁２ｉにおける対向する側（図２（Ｂ）では下側）に向かって突出する。ストッパ部２５において、カバー３が不適正な配置の場合に突起部３５が当接する面（以下、当接面２５ｆと呼ぶ）は、本体部２の表面２ｆに概ね平行に設けられている（図４）。また、本例のストッパ部２５は、上述の四辺の縁のうち、一辺の縁（上端縁）の長さ方向の中央位置に設けられている。そのため、ストッパ部２５は、凹部２０における上記一辺の縁寄りの領域を塞ぐように配置される。 The stopper portion 25 of this example is a flat plate member having a rectangular planar shape, and protrudes from the inner peripheral wall 2i toward the opposite side (the lower side in FIG. 2B) of the inner peripheral wall 2i. In the stopper portion 25, a surface (hereinafter, referred to as an abutting surface 25f) with which the protrusion 35 abuts when the cover 3 is improperly arranged is provided substantially parallel to the surface 2f of the main body 2 (FIG. 4). Further, the stopper portion 25 of the present example is provided at a central position in the length direction of one edge (upper edge) of the four edges described above. Therefore, the stopper portion 25 is arranged so as to close the region near the edge of the one side in the concave portion 20.

ストッパ部２５の形状、大きさ、配置位置等は、カバー３の突起部３５の大きさ、形状、配置位置、シフトロック解除ボタン５の操作性等を考慮して選択することが挙げられる。例えば、内周壁２ｉからの突出長さＬ_２５、開口縁２ｅ（内周壁２ｉ）の周方向に沿った長さＷ_２５、本体部２の表面２ｆから当接面２５ｆまでの深さＤ_２５（図４（Ｂ））等は、上述のストッパ部２５と両第二係合部２１との干渉防止に加え、解除ボタン５を操作可能であり、カバー３が不適正な配置の場合に突起部３５に確実に当接可能な範囲で選択することが挙げられる。 The shape, size, arrangement position, and the like of the stopper portion 25 may be selected in consideration of the size, shape, arrangement position, operability of the shift lock release button 5, and the like of the protrusion 35 of the cover 3. For example, the protruding length L ₂₅ from the inner peripheral wall 2 i, the length W ₂₅ along the circumferential direction of the opening edge 2 e (the inner peripheral wall 2 i), and the depth D ₂₅ from the surface 2 f of the main body 2 to the contact surface 25 f ( 4B) and the like, in addition to the above-described prevention of the interference between the stopper portion 25 and the two second engagement portions 21, the release button 5 can be operated, and the projection portion is formed when the cover 3 is improperly arranged. The selection may be made within a range that can reliably contact the 35.

《第二係合部》
第二係合部２１は、カバー３の第一係合部３１と共に、両係合部２１，３１が係合されることで、凹部２０がカバー３によって塞がれた状態を維持する機能を有する。《Second engaging part》
The second engaging portion 21 has a function of maintaining the state in which the concave portion 20 is closed by the cover 3 by engaging the two engaging portions 21 and 31 together with the first engaging portion 31 of the cover 3. Have.

本例の第二係合部２１は、内周壁２ｉの端面の一部である（図５）。詳しくは、内周壁２ｉにおいて、上述の四辺の縁のうち、ストッパ部２５が設けられた一辺の縁寄りであって、この一辺に直交する二辺の縁寄りの領域がそれぞれ近接するように局所的に突出する。凹部２０内に配置される上記突出箇所の端面を第二係合部２１とする。両突出箇所によって、凹部２０の開口間隔（図２（Ｂ）では紙面左右方向に沿った長さ）を局所的に狭められる。このような突出箇所を第二係合部２１とすることで、第二係合部２１にカバー３の第一係合部３１が係合されると、第一係合部３１を両第二係合部２１から抜き取り難く、係合状態が外れ難い。上記突出箇所における開口縁２ｅからの突出長さＷ_２１、開口縁２ｅの周方向に沿った長さＬ_２１は、上述のストッパ部２５と両第二係合部２１との干渉防止に加え、上記の強固な係合という目的を奏し、シフトロック解除ボタン５を操作可能な範囲で選択することが挙げられる。また、本例では、上記突出箇所における開口縁２ｅ（表面２ｆ）から上記端面までの深さＤ_２０は、ストッパ部２５の当接面２５ｆの深さＤ_２５よりも大きい（図４，図５）。その結果、第一係合部３１を凹部２０から抜き取る際の抜取長さが長くなることからも、係合状態を外し難くすることができる。 The second engaging portion 21 of this example is a part of the end surface of the inner peripheral wall 2i (FIG. 5). Specifically, in the inner peripheral wall 2i, of the four sides described above, the local area is set so that two areas near the edge where the stopper portion 25 is provided and two sides orthogonal to the one side are close to each other. Project. The end face of the protruding portion arranged in the concave portion 20 is referred to as a second engaging portion 21. By the two projecting portions, the interval between the openings of the recess 20 (the length along the left-right direction in FIG. 2B) is locally reduced. By setting such a protruding portion as the second engaging portion 21, when the first engaging portion 31 of the cover 3 is engaged with the second engaging portion 21, the first engaging portion 31 It is difficult to pull out from the engagement portion 21 and the engagement state is not easily released. The projection length W ₂₁ from the opening edge 2 e at the projecting portion and the length L ₂₁ along the circumferential direction of the opening edge 2 e are not only the above-described prevention of interference between the stopper 25 and the two second engagement portions 21, but also The purpose of the above-described strong engagement is to select the shift lock release button 5 within an operable range. Further, in this embodiment, the opening edge 2e depth _{D 20} from (surface 2f) to the end surface of the protruding portion is larger than the contact surface 25f of the depth _{D 25} of the stopper portion 25 (FIG. 4, FIG. 5 ). As a result, it is possible to make it difficult to release the engagement state because the extraction length when the first engagement portion 31 is extracted from the concave portion 20 becomes long.

《その他》
本例の本体部２は、例えば、樹脂の成形体が挙げられる。《Other》
The main body 2 of the present example is, for example, a resin molded body.

〈カバー〉
《概要》
以下、主に図２（Ａ）、図３を参照して、カバー３を説明する。
本例のカバー３は、本体部２とは独立した成形体であり、上述のように本体部２に取り付けられて、凹部２０を覆う部材である。本例のカバー３は、平板状のカバー本体３０と、カバー本体３０の裏面３ｂ側に設けられる一対の第一係合部３１及び突起部３５とを備える（図３）。更に、本例のカバー３は、カバー本体３０の表面３ｆに開口し、カバー３を本体部２から取り外す際に取り外す工具（図示せず）が差し込まれる作業用凹部３６を備える。 <cover>
"Overview"
Hereinafter, the cover 3 will be described mainly with reference to FIGS.
The cover 3 of this example is a molded body independent of the main body 2 and is a member that is attached to the main body 2 and covers the recess 20 as described above. The cover 3 of the present example includes a flat cover body 30 and a pair of first engagement portions 31 and protrusions 35 provided on the back surface 3b side of the cover body 30 (FIG. 3). Further, the cover 3 of the present embodiment includes a work recess 36 which is opened on the surface 3f of the cover main body 30 and into which a tool (not shown) for removing the cover 3 from the main body 2 is inserted.

《カバー本体》
本例のカバー本体３０は、表面３ｆの平面形状が正方形に近い長方形状の平板材であり、回転対称形状である。長方形状のカバー本体３０における四辺の縁のうち、一辺の縁寄り（図２（Ａ）では上端縁寄り）に一対の第一係合部３１が設けられている。また、上記四辺の縁のうち、他辺の縁寄り（図２（Ａ）では下端縁寄り）に突起部３５と作業用凹部３６とが設けられている。両第一係合部３１と突起部３５及び作業用凹部３６とが干渉しないように、これらの形状、大きさ、配置位置が調整される。また、本例のカバー３は、突起部３５が設けられた他辺の縁の二等分線を中心として、線対称な形状である。《Cover body》
The cover main body 30 of the present example is a rectangular flat plate whose surface 3f has a planar shape close to a square, and has a rotationally symmetric shape. A pair of first engaging portions 31 are provided near one edge (near the upper edge in FIG. 2A) of the four edges of the rectangular cover body 30. In addition, a projection 35 and a work recess 36 are provided near the other edge (in FIG. 2A, near the lower edge) of the four edges. The shapes, sizes, and positions of the first engagement portions 31 are adjusted so that the projections 35 and the work recesses 36 do not interfere with each other. Further, the cover 3 of the present example has a line-symmetrical shape with respect to the bisector of the edge of the other side where the protrusion 35 is provided.

カバー本体３０の表面３ｆと裏面３ｂとを繋ぐ側面３ｓは、カバー本体３０の平面面積が表面３ｆから裏面３ｂに向かって連続的に小さくなるように若干傾斜している（図５も参照）。側面３ｓの傾斜角度は、本体部２の内周壁２ｉの傾斜角度に対応する。また、カバー本体３０の表面３ｆの大きさは、凹部２０の開口縁２ｅ内の平面面積に対応する。そのため、カバー装着状態では、内周壁２ｉと側面３ｓとの間に隙間が実質的に形成されない（図１）。 The side surface 3s connecting the front surface 3f and the back surface 3b of the cover body 30 is slightly inclined so that the planar area of the cover body 30 becomes smaller continuously from the front surface 3f toward the back surface 3b (see also FIG. 5). The inclination angle of the side surface 3s corresponds to the inclination angle of the inner peripheral wall 2i of the main body 2. The size of the surface 3f of the cover body 30 corresponds to the plane area within the opening edge 2e of the recess 20. Therefore, when the cover is mounted, a gap is not substantially formed between the inner peripheral wall 2i and the side surface 3s (FIG. 1).

《突起部》
本例の突起部３５は、平板部材であり（図３）、カバー本体３０の裏面３ｂから突出し、カバー３を表面３ｆ側から平面視した状態では見えないように設けられている（図２（Ａ））。また、本例の突起部３５は、カバー本体３０の裏面３ｂにおける作業用凹部３６に対応した凸部に一体に設けられている（図３（Ｂ））。本例の作業用凹部３６は上述のカバー本体３０の他辺の縁に沿って横長の長方形状の開口部を有し、裏面３ｂに形成される凸部は直方体状である。本例の突起部３５は、この直方体状の凸部の底部３６０から突出する（図４も参照）。 "protrusion"
The protruding portion 35 of this example is a flat plate member (FIG. 3), protrudes from the back surface 3b of the cover main body 30, and is provided so as not to be visible when the cover 3 is viewed from the front surface 3f in a plan view (FIG. A)). Further, the protrusion 35 of this example is provided integrally with a protrusion corresponding to the work recess 36 on the back surface 3b of the cover main body 30 (FIG. 3B). The working concave portion 36 of this example has a horizontally long rectangular opening along the edge of the other side of the cover body 30 described above, and the convex portion formed on the back surface 3b has a rectangular parallelepiped shape. The protrusion 35 of this example projects from the bottom 360 of this rectangular parallelepiped convex portion (see also FIG. 4).

突起部３５の形状、大きさ、配置位置等は、本体部２のストッパ部２５の大きさ、形状、配置位置、シフトロック解除ボタン５の配置位置等を考慮して選択することが挙げられる。例えば、作業用凹部３６をなす凸部の底部３６０からの突出長さｈ_３（図４も参照）、カバー本体３０の周方向に沿った長さＷ_３５、突起部３５の厚さ等は、上述の第一係合部３１と突起部３５及び作業用凹部３６との干渉防止に加え、カバー装着状態で突起部３５が解除ボタン５に接触せず、カバー３が不適正な配置の場合に突起部３５がストッパ部２５に確実に当接可能な範囲で選択することが挙げられる。 The shape, size, position, and the like of the protrusion 35 may be selected in consideration of the size, shape, position, position of the shift lock release button 5, and the like of the stopper 25 of the main body 2. For example, the projecting length h _{3 of the} convex portion forming the working concave portion 36 from the bottom 360 (see also FIG. 4), the length W ₃₅ along the circumferential direction of the cover main body 30, the thickness of the projecting portion 35, and the like are as follows. In addition to preventing the interference between the first engagement portion 31 and the protrusions 35 and the working recesses 36, when the protrusions 35 do not contact the release button 5 in the cover mounted state and the cover 3 is improperly arranged. The selection may be made in a range where the protrusion 35 can surely contact the stopper 25.

本例の突起部３５の突出長さｈ_３は、図４（Ｂ）に示すように、カバー３が不適正な配置の場合にカバー本体３０が本体部２の表面２ｆから完全に突出して凹部２０に沈み込まない大きさである。更に、本例の突出長さｈ_３は、作業用凹部３６をなす凸部も本体部２の表面２ｆから露出される大きさである。定量的には、突出長さｈ_３は、本体部２の深さＤ_２５に実質的に等しい。このような突起部３５は、カバー３が不適正な配置であることを容易に把握でき、誤装着を防止できる。突出長さｈ_３は、深さＤ_２５よりも短くすることができるが、カバー本体３０が本体部２から突出する程度以上であると、上述のように不適正配置を把握し易く好ましい。 Protrusion length h ₃ of the protrusion 35 of the present embodiment, as shown in FIG. 4 (B), the cover body 30 when the cover 3 is improper placement is fully extended from the surface 2f of the main body portion 2 recesses The size does not sink into 20. Furthermore, the protruding length h ₃ of the present embodiment is sized to be exposed from the protrusion also surface 2f of the main body portion 2 which forms a working recess 36. Quantitatively, the protruding length h ₃ is substantially equal to the depth D ₂₅ main body 2. Such a protrusion 35 can easily grasp that the cover 3 is improperly arranged, and can prevent erroneous mounting. Protrusion length h ₃ is, can be shorter than the depth D _25, when the cover body 30 is at least the extent that projects from the main body 2, preferably easily grasp the improperly positioned as described above.

《第一係合部》
本例のカバー３は、一対の第一係合部３１を備える。各第一係合部３１は、カバー本体３０の裏面３ｂから離れる方向に延びる脚部３２と、脚部３２の延伸方向に直交又は鋭角に交差するように設けられる返し部３３とを備える（図５も参照）。カバー３が適正な配置の場合、返し部３３は第二係合部２１（ここでは内周壁２ｉの端面の一部）に係止され（図５）、カバー３は本体部２に固定される。各第一係合部３１は、各返し部３３の向きが逆向きになるように、カバー本体３０の対向位置に離間して設けられる。本例では、各第一係合部３１は同一形状、同一の大きさである。《First engagement part》
The cover 3 of the present example includes a pair of first engagement portions 31. Each first engaging portion 31 includes a leg portion 32 extending in a direction away from the back surface 3b of the cover main body 30 and a return portion 33 provided to intersect at right angles or at an acute angle with the extending direction of the leg portion 32 (FIG. 5). When the cover 3 is properly arranged, the return portion 33 is locked by the second engaging portion 21 (here, a part of the end surface of the inner peripheral wall 2i) (FIG. 5), and the cover 3 is fixed to the main body 2. . Each first engaging portion 31 is provided at a position facing the cover main body 30 so as to be separated from each other so that the direction of each return portion 33 is opposite. In this example, each first engagement portion 31 has the same shape and the same size.

第一係合部３１の大きさ（脚部３２の長さ、返し部３３における脚部３２からの突出長さ、返し部３３における脚部３２の延伸方向に対する交差角度等）は、第一係合部３１と第二係合部２１との係合可能な範囲で選択することが挙げられる。本例では、両係合部２１，３１の係合状態が指等で簡単に外れない程度の結合強度を有するように、両係合部２１，３１の大きさが調整されている。本例の第一係合部３１における上記交差角度は９０°程度である。また、本例では、カバー３を平面視すると、各返し部３３の端縁がカバー本体３０の輪郭から突出するように（図２（Ａ））、返し部３３の大きさ、一対の第一係合部３１間の間隔等が調整されている。 The size of the first engagement portion 31 (the length of the leg portion 32, the length of the protrusion of the return portion 33 from the leg portion 32, the intersection angle of the return portion 33 with the extension direction of the leg portion 32, etc.) Selection may be made within a range in which the joint portion 31 and the second engagement portion 21 can be engaged. In the present example, the sizes of the two engaging portions 21 and 31 are adjusted so that the engaging state of the two engaging portions 21 and 31 has a coupling strength that does not easily come off with a finger or the like. The crossing angle in the first engagement portion 31 of the present example is about 90 °. In this example, when the cover 3 is viewed in a plan view, the size of the return portion 33 and the pair of first return portions 33 are set such that the edge of each return portion 33 protrudes from the contour of the cover main body 30 (FIG. 2A). The distance between the engaging portions 31 and the like are adjusted.

返し部３３がカバー本体３０から突出していても、カバー３を凹部２０に装着する際には、両第一係合部３１の端部を先細り形状の内周壁２ｉに沿わせることで、両係合部３１は、両係合部３１間の間隔を狭めるように弾性変形することができる。その結果、両係合部３１は、凹部２０を通過できる。内周壁２ｉの端面に到達すると、両係合部３１の変形が解除され、両係合部３１の間隔が所定の大きさに復帰することで、第一係合部３１が第二係合部２１に係合される（図５）。なお、両第一係合部３１は、突起部３５及び作業用凹部３６と干渉しない位置に配置されるため、上述の弾性変形を良好に行える。 Even when the return portion 33 protrudes from the cover main body 30, when the cover 3 is mounted in the concave portion 20, the ends of both the first engagement portions 31 are made to extend along the tapered inner peripheral wall 2 i, so that both the engagement portions are formed. The joint portion 31 can be elastically deformed so as to reduce the space between the engagement portions 31. As a result, both engagement portions 31 can pass through the recess 20. When reaching the end face of the inner peripheral wall 2i, the deformation of the two engaging portions 31 is released, and the interval between the two engaging portions 31 returns to a predetermined size, so that the first engaging portion 31 becomes the second engaging portion. 21 (FIG. 5). Since the first engagement portions 31 are arranged at positions where they do not interfere with the protrusions 35 and the work recesses 36, the above-described elastic deformation can be performed satisfactorily.

第一係合部３１と第二係合部２１とが係合された状態では、カバー３を凹部２０から抜き取る方向に移動することが規制される。返し部３３の交差角度が約９０°であるため、カバー３を抜き取り方向に移動すると、返し部３３が第二係合部２１（内周壁２ｉの端面）に当接した状態が維持され易いからである。内周壁２ｉが先細り状に傾斜しており、凹部２０における第二係合部２１近くの間隔が、弾性変形していない状態での両返し部３３の端縁間の間隔よりも狭いことからも、返し部３３と第二係合部２１との当接状態を解除し難い。従って、本例では、シフトロック解除ボタン５を使用しない通常時、カバー３が凹部２０を塞いだ状態を維持し易い。 When the first engagement portion 31 and the second engagement portion 21 are engaged with each other, movement of the cover 3 in a direction in which the cover 3 is removed from the recess 20 is restricted. Since the intersection angle of the return portion 33 is about 90 °, the state in which the return portion 33 is in contact with the second engagement portion 21 (the end surface of the inner peripheral wall 2i) is easily maintained when the cover 3 is moved in the removal direction. It is. This is because the inner peripheral wall 2i is tapered and the interval between the recesses 20 near the second engaging portion 21 is smaller than the interval between the edges of the two-sided portions 33 in a state where they are not elastically deformed. It is difficult to release the contact state between the return portion 33 and the second engagement portion 21. Therefore, in this example, in a normal state where the shift lock release button 5 is not used, it is easy to maintain a state in which the cover 3 covers the recess 20.

その他、本例では、カバー本体３０の裏面３ｂにおける各第一係合部３１の連結箇所近くに補強用のリブ３７（図３（Ｂ），図４）が設けられている。本例のリブ３７は、裏面３ｂから突出すると共に、両第一係合部３１間を繋ぐように設けられている。このようなリブ３７は、各第一係合部３１の補強に加えて、両第一係合部３１の間隔保持にも寄与する。 In addition, in the present embodiment, reinforcing ribs 37 (FIGS. 3B and 4) are provided near the connecting portions of the first engagement portions 31 on the back surface 3b of the cover main body 30. The rib 37 of this example is provided so as to protrude from the back surface 3b and to connect between the first engagement portions 31. Such ribs 37 contribute to maintaining the space between the two first engaging portions 31 in addition to reinforcing the first engaging portions 31.

《作業用凹部》
本例では、カバー装着状態では、上述のように凹部２０とカバー３との間に実質的に隙間がなく、美観に優れるものの、カバー３を取り外す際にはカバー３に掴みどころが無く、カバー３を外し難い。そこで、本例のカバー３は作業用凹部３６を備える。本例の作業用凹部３６は、カバー本体３０の表面３ｆに開口部を有し、裏面３ｂ側に底部を有する止まり穴である。開口部の平面形状は横長の長方形状であり、開口部の大きさはマイナスドライバ等の工具を差し込み可能な程度の大きさである。《Work recess》
In this example, when the cover is mounted, there is substantially no gap between the concave portion 20 and the cover 3 as described above, and although the appearance is excellent, when the cover 3 is removed, the cover 3 has no place to be gripped. It is hard to remove 3. Therefore, the cover 3 of the present embodiment is provided with the working recess 36. The working recess 36 of this example is a blind hole having an opening on the front surface 3f of the cover body 30 and a bottom on the back surface 3b side. The plane shape of the opening is a horizontally long rectangular shape, and the size of the opening is such that a tool such as a flathead screwdriver can be inserted.

カバー本体３０の裏面３ｂには、作業用凹部３６を形成する凸部が設けられる（図３（Ｂ））。この凸部が両第一係合部３１の弾性変形を阻害せず、かつ突起部３５とストッパ部２５との当接を阻害しないように、作業用凹部３６の大きさ、形状、配置位置が調整される。本例の作業用凹部３６は、上述のようにカバー本体３０の一辺の縁寄りに両係合部３１が配置され、他辺の縁寄りに作業用凹部３６が配置されることで、例えば、長方形状のカバー本体３０の中心位置に作業用凹部３６が配置される場合に比較して、カバー３を外し易い。後述するてこの原理を利用し易いからである。 On the back surface 3b of the cover main body 30, a convex portion forming the working concave portion 36 is provided (FIG. 3B). The size, shape, and position of the working recess 36 are set such that the protrusion does not inhibit the elastic deformation of the first engagement portions 31 and does not inhibit the contact between the protrusion 35 and the stopper 25. Adjusted. As described above, the working recess 36 of the present example is configured such that the two engaging portions 31 are arranged near one edge of the cover body 30 and the working recess 36 is arranged near the other edge, for example, as described above. The cover 3 can be easily removed as compared with the case where the work recess 36 is arranged at the center position of the rectangular cover main body 30. This is because the principle of leverage described later can be easily used.

《その他》
本例のカバー３は、樹脂の成形体である。また、本例の突起部３５にカバー３を成形するときのゲート跡ｇを有する（図４）。このようなカバー３は、製造過程で、突起部３５の形成領域にゲートが設けられていたといえる。《Other》
The cover 3 of the present example is a resin molded body. In addition, there is a gate mark g when the cover 3 is formed on the projection 35 of this example (FIG. 4). It can be said that such a cover 3 was provided with a gate in the formation region of the protrusion 35 in the manufacturing process.

ここで、カバー３を樹脂の成形体とする場合、成形型のパーティングライン（以下、Ｐ．Ｌ．）をカバー本体３０の側面３ｓに設けて、成形型をカバー本体３０の厚さ方向に分割することが挙げられる。また、成形型におけるカバー本体３０の側面３ｓの形成領域に、原料樹脂をキャビティに充填するゲートも設けることが挙げられる。この場合、側面３ｓにゲート跡が残る。このゲート跡がカバー３と本体部２の凹部２０との間に介在することで、カバー３と本体部２との間に比較的大きな隙間が生じて美観を損なうことが考えられる。これに対し、成形型における突起部３５の形成領域にゲートを設ければ、突起部３５は、カバー本体３０の裏面３ｂ側に配置されるため、突起部３５にゲート跡ｇがあってもカバー装着状態では表面３ｆ側から見えず、美観に優れる。また、ゲート跡ｇがカバー３と本体部２との間に介在されず、カバー３と本体部２との間の隙間を狭くできる。本例では、上述のように内周壁２ｉと側面３ｓとの間に隙間が実質的に形成されず、美観に優れる。更に、この場合、ゲートによるバリの残量が多くても美観を損ない難く、バリの除去作業性に優れる。なお、本例では、カバー装着状態にある突起部３５において、内周壁２ｉに対向する面にゲート跡ｇを有する（図４（Ａ））。ゲート跡ｇが内周壁２ｉに干渉しないように、突起部３５における内周壁２ｉとの対向面と、内周壁２ｉとの間隔ｈを調整している。こうすることで、突起部３５を凹部２０内に挿入し易い。また、本例のようにカバー装着状態において（図４（Ａ））、突起部３５の上述の対向面のうち、内周壁２ｉの端面から突出する領域にゲート跡ｇを有するように、突起部３５の突出長さｈ_３を調整することが好ましい。カバー装着状態では、間隔ｈの大きさによらず、ゲート跡ｇが内周壁２ｉに干渉しないからである。 Here, when the cover 3 is made of a resin molded body, a parting line (hereinafter, P.L.) of the mold is provided on the side surface 3s of the cover body 30 and the mold is placed in the thickness direction of the cover body 30. Division is mentioned. In addition, a gate for filling the cavity with the raw material resin may be provided in the forming region of the side surface 3s of the cover body 30 in the molding die. In this case, a gate mark remains on the side surface 3s. It is conceivable that a relatively large gap is formed between the cover 3 and the main body 2 due to the presence of the gate mark between the cover 3 and the concave portion 20 of the main body 2, and the appearance is impaired. On the other hand, if a gate is provided in the area where the protrusion 35 is formed in the molding die, the protrusion 35 is disposed on the back surface 3b side of the cover main body 30. In the mounted state, it is not visible from the surface 3f side, and is excellent in aesthetic appearance. Further, the gate mark g is not interposed between the cover 3 and the main body 2, and the gap between the cover 3 and the main body 2 can be narrowed. In this example, as described above, a gap is not substantially formed between the inner peripheral wall 2i and the side surface 3s, and the appearance is excellent. Further, in this case, even if the amount of burrs remaining by the gate is large, it is difficult to impair the aesthetic appearance, and the burrs can be easily removed. In this example, the protrusion 35 in the cover mounted state has a gate mark g on the surface facing the inner peripheral wall 2i (FIG. 4A). The distance h between the surface of the projection 35 facing the inner peripheral wall 2i and the inner peripheral wall 2i is adjusted so that the gate mark g does not interfere with the inner peripheral wall 2i. This makes it easy to insert the protrusion 35 into the recess 20. Also, in the cover mounted state as in this example (FIG. 4A), the protrusions are formed so as to have a gate mark g in a region protruding from the end surface of the inner peripheral wall 2i in the above-described facing surface of the protrusion 35. it is preferable to adjust the protruding length h ₃ of 35. This is because the gate trace g does not interfere with the inner peripheral wall 2i regardless of the size of the interval h in the cover mounted state.

〈カバーの取り付け・取り外し〉
次に、カバー３の取付手順、取外し手順を説明する。
《取付手順》
本体部２の凹部２０にカバー３の第一係合部３１等を差し入れる。上述のように凹部２０の内周壁２ｉの傾斜に沿って両第一係合部３１を滑らせるとよい。カバー３が凹部２０に対して適正な向き（ここでは図２に示す状態）であれば、両第一係合部３１は、内周壁２ｉに案内されることで弾性変形しながら凹部２０内を進み、最終的には第二係合部２１に係合される（図５）。このようにして、実施形態のカバーの取付構造１が構築される（図４（Ａ），図５）。 <Attaching and removing the cover>
Next, a procedure for attaching and removing the cover 3 will be described.
《Mounting procedure》
The first engaging portion 31 of the cover 3 is inserted into the concave portion 20 of the main body 2. As described above, the first engagement portions 31 may be slid along the inclination of the inner peripheral wall 2i of the recess 20. If the cover 3 is oriented properly with respect to the recess 20 (the state shown in FIG. 2), the first engagement portions 31 are guided by the inner peripheral wall 2i to elastically deform inside the recess 20. Then, it is finally engaged with the second engagement portion 21 (FIG. 5). Thus, the cover mounting structure 1 of the embodiment is constructed (FIGS. 4A and 5).

一方、カバー３が凹部２０に対して不適正な向きであると、カバー３の突起部３５がストッパ部２５に当接する（図４（Ｂ））。不適正な向きとは、図２で説明すると、凹部２０の上端縁寄りにストッパ部２５が位置する場合に、カバー３の上端縁寄りに突起部３５及び作業用凹部３６が位置し、下端縁寄りに第一係合部３１が位置する。いわば、上述の適正な向きに対して、上下反転した状態である。上述のように本例では、突起部３５とストッパ部２５との当接状態では、カバー本体３０及び作業用凹部３６が本体部２の表面２ｆから突出し、カバー３が凹部２０に沈み込まない。また、第一係合部３１が第二係合部２１以外の箇所に係合することも阻止される。本例では、両係合部２１，３１も係合できない。そのため、作業者は、カバー３が不適正な向きであることを容易に把握でき、カバー３を適正な向きに変更することができる。その結果、適正にカバー装着状態を構築できる。 On the other hand, if the cover 3 is improperly oriented with respect to the recess 20, the protrusion 35 of the cover 3 abuts on the stopper 25 (FIG. 4B). When the stopper 25 is located near the upper edge of the recess 20, the protrusion 35 and the working recess 36 are located near the upper edge of the cover 3, and the incorrect orientation is described with reference to FIG. 2. The first engagement portion 31 is located closer to the position. In other words, the state is upside down with respect to the above-described proper orientation. As described above, in the present example, in the contact state between the protrusion 35 and the stopper 25, the cover main body 30 and the working recess 36 project from the surface 2f of the main body 2, and the cover 3 does not sink into the recess 20. In addition, engagement of the first engagement portion 31 with a portion other than the second engagement portion 21 is also prevented. In the present example, neither of the engagement portions 21 and 31 can be engaged. Therefore, the operator can easily grasp that the cover 3 is in an inappropriate orientation, and can change the cover 3 to an appropriate orientation. As a result, the cover mounted state can be appropriately constructed.

《取外し手順》
作業用凹部３６に適宜な工具を差し込み、この差込状態で工具を作業用凹部３６の開口部の短辺方向（図２では上下方向）に回転させる。その結果、てこの原理により、カバー３を凹部２０から取り外すことができる。《Removal procedure》
An appropriate tool is inserted into the work recess 36, and in this inserted state, the tool is rotated in the short side direction (the vertical direction in FIG. 2) of the opening of the work recess 36. As a result, the cover 3 can be removed from the recess 20 by the leverage principle.

〈主な作用・効果〉
実施形態１のカバーの取付構造１は、カバー３を本体部２に装着する際にカバー３が凹部２０に対して不適正な向きに配置されると、カバー３の突起部３５が本体部２のストッパ部２５に当接する。この当接によって、カバー３の第一係合部３１が本体部２に係合されることなくカバー３が凹部２０に嵌り込んだり、カバー３の第一係合部３１が本体部２の第二係合部２１以外の箇所に係合したりすること等が阻止される。そのため、作業者は、カバー３を不適切な向きに配置したことを容易に把握でき、適正な配置に変更して、カバー３を凹部２０に装着することができる。従って、実施形態１のカバーの取付構造１は、カバー３の誤装着を防止できる。 <Main functions and effects>
In the cover mounting structure 1 of the first embodiment, when the cover 3 is disposed in an inappropriate direction with respect to the recess 20 when the cover 3 is mounted on the main body 2, the protrusion 35 of the cover 3 Abuts on the stopper portion 25. By this contact, the cover 3 fits into the concave portion 20 without the first engagement portion 31 of the cover 3 being engaged with the main body 2, or the first engagement portion 31 of the cover 3 Engagement with a portion other than the two engagement portions 21 is prevented. Therefore, the operator can easily grasp that the cover 3 has been arranged in an inappropriate direction, change the arrangement to an appropriate arrangement, and attach the cover 3 to the recess 20. Therefore, the cover mounting structure 1 of the first embodiment can prevent the cover 3 from being erroneously mounted.

その他、実施形態１のカバーの取付構造１は、以下の効果も奏する。
（１）カバー３が一対の第一係合部３１を有し、各第一係合部３１が返し部３３を有するため、シフトロック解除ボタン５を使用しない通常時、第一係合部３１と第二係合部２１との係合状態が外れ難い。
（２）作業用凹部３６を有するため、解除ボタン５の使用時にはカバー３を外し易く、作業性に優れる。特に、本例では、第一係合部３１の配置位置と作業用凹部３６の配置位置とが図２（Ａ）の上下方向の上端側と他端側とに離れており、てこの原理を利用し易いことからも、カバー３を外し易い。
（３）突起部３５にゲート跡ｇを有するため、カバー装着状態においてカバー３の表面３ｆ側からゲート跡ｇが見えない上に、ゲート跡ｇが本体部２とカバー３との間に介在されないため、美観に優れる。また、この場合、ゲートによるバリの残量の管理値を大きくし易く、上記バリの除去工程を削減できるため、カバー３の製造性にも優れる。
（４）カバー本体３０及び凹部２０の平面形状が回転対称形状であり、カバー３を凹部２０に対して不適正な向きに配置する虞があるものの、誤装着を防止できる。
（５）カバー３に作業用凹部３６を備えるため、カバー３の取り外しの際に工具を用いても本体部２を傷つけ難い。また、カバー３の周縁と本体部２の凹部２０の開口縁２ｅとの間に大きな隙間（後述）が設けられず、美観に優れる。なお、本体部２に作業用凹部を備える場合には、カバー３の周縁と、本体部２の開口縁２ｅとの間に局所的に大きな隙間が設けられ易い。 In addition, the cover mounting structure 1 of the first embodiment also has the following effects.
(1) Since the cover 3 has a pair of first engagement portions 31 and each of the first engagement portions 31 has the return portion 33, the first engagement portion 31 is normally used when the shift lock release button 5 is not used. And the second engagement portion 21 is hardly disengaged.
(2) Since the release button 5 is used, the cover 3 can be easily removed because the work recess 36 is provided, and the workability is excellent. In particular, in this example, the arrangement position of the first engagement portion 31 and the arrangement position of the work recess 36 are separated from the upper end side and the other end side in the vertical direction in FIG. It is easy to remove the cover 3 because it is easy to use.
(3) Since the protrusion 35 has the gate mark g, the gate mark g cannot be seen from the front surface 3f side of the cover 3 when the cover is mounted, and the gate mark g is not interposed between the main body 2 and the cover 3. Therefore, it is excellent in aesthetics. In this case, the management value of the remaining amount of burrs by the gate can be easily increased, and the step of removing the burrs can be reduced, so that the manufacturability of the cover 3 is excellent.
(4) Although the planar shapes of the cover main body 30 and the concave portion 20 are rotationally symmetric, and the cover 3 may be arranged in an inappropriate direction with respect to the concave portion 20, erroneous mounting can be prevented.
(5) Since the cover 3 is provided with the work concave portion 36, even when using a tool when removing the cover 3, the main body 2 is hardly damaged. In addition, a large gap (described later) is not provided between the peripheral edge of the cover 3 and the opening edge 2e of the concave portion 20 of the main body 2, and the appearance is excellent. In the case where the main body 2 is provided with a work recess, a large gap is easily provided locally between the peripheral edge of the cover 3 and the opening edge 2 e of the main body 2.

［実施形態２］
図６を参照して、実施形態２のカバーの取付構造を説明する。
図６（Ａ）は、実施形態２のカバーの取付構造に備えられるカバー３Ａを裏面３ｂ側から見た平面図、図６（Ｂ）は本体部２Ａの凹部２０Ａ近傍を表面２ｆ側から見た平面図である。 [Embodiment 2]
With reference to FIG. 6, a cover mounting structure according to the second embodiment will be described.
FIG. 6A is a plan view of the cover 3A provided in the cover mounting structure according to the second embodiment as viewed from the back surface 3b side, and FIG. 6B is a view of the vicinity of the recess 20A of the main body 2A as viewed from the front surface 2f side. It is a top view.

実施形態１では、作業用凹部３６がカバー本体３０の一辺の縁寄りに設けられた場合を説明したが、図６に示すように作業用凹部３６をカバー本体３０Ａの中央部に設けることができる。この場合、例えば、一対の第一係合部３１は、作業用凹部３６を形成する凸部を挟むように配置されることが挙げられる。 In the first embodiment, the case where the work recess 36 is provided near the edge of one side of the cover body 30 has been described. However, as shown in FIG. 6, the work recess 36 can be provided at the center of the cover body 30A. . In this case, for example, the pair of first engaging portions 31 may be arranged so as to sandwich the convex portion forming the working concave portion 36.

実施形態１では、第一係合部３１及び第二係合部２１の組を一対備える場合を説明したが、図６に示すように係合部３１，２１の組を複数対備えることができる。図６では、係合部３１，２１の組を二対備え、各第一係合部３１が長方形状のカバー本体３０Ａにおける四辺の縁の中央部寄りにそれぞれ設けられ、各第二係合部２１が長方形状の開口縁２ｅにおける四辺の縁の中央部寄りにそれぞれ設けられた場合を例示する。また、図６では、上述の作業用凹部３６を上下から挟むように一対の第一係合部３１が配置され、左右から挟むように別の一対の第一係合部３１が配置される場合を例示する。なお、本例の第二係合部２１は、実施形態１と同様に、内周壁２ｉの端面の一部である。 In the first embodiment, the case where a pair of the first engagement portion 31 and the second engagement portion 21 is provided is described. However, as shown in FIG. 6, a plurality of pairs of the engagement portions 31 and 21 can be provided. . In FIG. 6, two pairs of engagement portions 31 and 21 are provided, and each first engagement portion 31 is provided near the center of four edges of the rectangular cover body 30 </ b> A. An example is shown in which 21 is provided near the center of the four edges of the rectangular opening edge 2e. In FIG. 6, a pair of first engaging portions 31 are arranged so as to sandwich the above-mentioned working recess 36 from above and below, and another pair of first engaging portions 31 is arranged so as to sandwich from above and below. Is exemplified. Note that the second engaging portion 21 of this example is a part of the end surface of the inner peripheral wall 2i, as in the first embodiment.

実施形態１では、突起部３５がカバー本体３０の一辺の縁寄りに設けられた場合を説明したが、図６に示すカバー３Ａのように、突起部３５をカバー本体３０Ａの角部に設けることができる。突起部３５は、カバー本体３０Ａの角部に設けられることで、上述の中央部寄りに設けられる第一係合部３１と干渉しない。本体部２Ａは、突起部３５に対応して、凹部２０Ａの角部にストッパ部２５を備えることが挙げられる。図６では、長方形状の凹部２０Ａにおける四つの角部のうち、三つの角部にそれぞれストッパ部２５を備え、残り一つの角部にストッパ部２５を備えていない場合を例示する。凹部２０Ａにおいてストッパ部２５が設けられていない角部及びその近傍には、カバー３Ａが適正な配置の場合、突起部３５が収納される。カバー３Ａが不適正な配置の場合、突起部３５は、三つのストッパ部２５のいずれかに当接する。なお、ここでは、カバー３Ａが適正な配置である場合とは、図６（Ａ）に示す状態のカバー３Ａをひっくり返して、紙面左側に突起部３５が配置された場合に相当する。 In the first embodiment, the case where the protrusion 35 is provided near the edge of one side of the cover main body 30 has been described. However, as in the case of the cover 3A shown in FIG. 6, the protrusion 35 is provided at a corner of the cover main body 30A. Can be. Since the protrusion 35 is provided at the corner of the cover main body 30A, it does not interfere with the first engaging portion 31 provided near the center. The main body 2A includes a stopper 25 at a corner of the recess 20A corresponding to the protrusion 35. FIG. 6 illustrates a case where three of the four corners of the rectangular recess 20A are provided with the stoppers 25, and the remaining one is not provided with the stopper 25. When the cover 3A is properly arranged, the protrusion 35 is accommodated in a corner of the recess 20A where the stopper 25 is not provided and in the vicinity thereof. When the cover 3A is improperly arranged, the protrusion 35 contacts one of the three stoppers 25. Here, the case where the cover 3A is properly arranged corresponds to the case where the cover 3A in the state shown in FIG. 6A is turned over and the protrusion 35 is arranged on the left side of the drawing.

上述のように作業用凹部３６の配置位置を調整することで、複数対の第一係合部３１及び第二係合部２１の組を備えられて、シフトロック解除ボタン５を使用しない通常時、係合部３１，２１の係合状態をより外れ難くすることができる。また、突起部３５及びストッパ部２５を備えることで、カバー３Ａが不適切な配置の場合、突起部３５及びストッパ部２５の当接によって、カバー３Ａの誤装着を防止できる。 By adjusting the arrangement position of the working concave portion 36 as described above, a plurality of pairs of the first engagement portion 31 and the second engagement portion 21 are provided, and the shift lock release button 5 is not used in normal times. In addition, the engagement state of the engagement portions 31 and 21 can be made more difficult to be disengaged. Further, by providing the protrusion 35 and the stopper 25, when the cover 3A is improperly arranged, the cover 3A can be prevented from being erroneously mounted by the contact between the protrusion 35 and the stopper 25.

本発明は、上述の実施形態１，２の構成に限定されず、適宜変更が可能である。
（１）例えば、作業用凹部３６を省略する。
この場合、カバー３の表面３ｆが平坦な面となり、カバー３の適正な向きを把握し難く、誤装着が生じ易いといえる。このような場合でも、本体部２にストッパ部２５を備え、カバー３に突起部３５を備えることで、誤装着を防止できる。なお、この場合、本体部２に作業用凹部（図示せず）を設けることが好ましい。
（２）例えば、カバー本体３０及び凹部２０の平面形状が円形、楕円形、レーストラック形、正多角形等といった長方形以外の回転対称形状である。
（３）例えば、第一係合部３１をカバー本体３０の対角位置に備え、第一係合部３１に対応して、第二係合部２１を凹部２０の対角位置に備える。 The present invention is not limited to the configurations of the first and second embodiments, and can be appropriately changed.
(1) For example, the work recess 36 is omitted.
In this case, the surface 3f of the cover 3 becomes a flat surface, and it is difficult to grasp the proper orientation of the cover 3, and it can be said that erroneous mounting is likely to occur. Even in such a case, by providing the main body 2 with the stopper 25 and the cover 3 with the protrusion 35, erroneous mounting can be prevented. In this case, it is preferable to provide a working recess (not shown) in the main body 2.
(2) For example, the planar shapes of the cover body 30 and the concave portion 20 are rotationally symmetric shapes other than rectangles, such as a circle, an ellipse, a racetrack, and a regular polygon.
(3) For example, the first engaging portion 31 is provided at a diagonal position of the cover body 30, and the second engaging portion 21 is provided at a diagonal position of the concave portion 20 corresponding to the first engaging portion 31.

１カバーの取付構造
２，２Ａ本体部、２ｆ表面、２ｅ開口縁、２ｉ内周壁
２０，２０Ａ凹部、２１第二係合部、２５ストッパ部、２５ｆ当接面
２６支持部
３，３Ａカバー、３ｆ表面、３ｂ裏面、３ｓ側面
３０，３０Ａカバー本体、３１第一係合部、３２脚部、３３返し部、
３５突起部、３６作業用凹部、３６０底部、３７リブ
５シフトロック解除ボタン
ｇゲート跡 DESCRIPTION OF SYMBOLS 1 Cover mounting structure 2, 2A body part, 2f surface, 2e opening edge, 2i inner peripheral wall 20, 20A recessed part, 21 second engaging part, 25 stopper part, 25f contact surface 26 support part 3, 3A cover, 3f Front surface, 3b back surface, 3s side surface 30, 30A cover main body, 31 first engagement portion, 32 legs, 33 return portion,
35 Projection, 36 Working recess, 360 Bottom, 37 Rib 5 Shift lock release button g Gate mark

Claims

A cover mounting structure including a main body portion provided with a concave portion, and a cover attached to the main body portion and closing the concave portion,
The cover,
A first engagement portion provided on the back side of the cover body,
A projection protruding from the back surface,
The main body is
A second engaging portion, which is provided inside the concave portion and is engaged with the first engaging portion of the cover arranged in an appropriate direction with respect to the concave portion,
A stopper that is provided inside the concave portion and that prevents the cover from being improperly mounted in the concave portion by being brought into contact with the protrusion of the cover that is disposed in an inappropriate direction with respect to the concave portion. Mounting structure for a cover comprising a part.