JP3903635B2

JP3903635B2 - Mounting dimension adjustment member

Info

Publication number: JP3903635B2
Application number: JP09855199A
Authority: JP
Inventors: 孝牧野
Original assignee: Panasonic Corp; Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Corp; Panasonic Holdings Corp
Priority date: 1999-04-06
Filing date: 1999-04-06
Publication date: 2007-04-11
Anticipated expiration: 2019-04-06
Also published as: JP2000294064A

Description

【０００１】
【発明の属する技術分野】
本発明は、自動車のペダル部分に装着されるブレーキランプ用スイッチの取付け部等に用いられる取付寸法調整部材に関するものである。
【０００２】
【従来の技術】
従来の取付寸法調整部材について、自動車のペダル部分に装着されるブレーキランプ用スイッチの取付け部を例として図５〜図８を用いて説明する。
【０００３】
図５は自動車のペダル部分に装着されるスイッチに用いられた取付寸法調整部材の部分断面の側面図、図６は従来の取付寸法調整部材の分解斜視図である。
【０００４】
同図において、１は後述する取付板３などで構成される自動車のペダル部分であり、２の樹脂製で略円筒状の保持部材が、取付板３の取付孔３Ａに挿入されて弾性突起部２Ｃにより係合固定されている。
【０００５】
また、４は保持部材２の略円形の保持孔２Ｄに挿脱自在な樹脂製の軸部材としての軸受部５を有するスイッチであり、このスイッチ４の軸受部５を図５のＸ−Ｘ線における断面図である図７に示すように、保持孔２Ｄに挿入して、所定の取付寸法となる位置で所定の角度だけ回動させることにより、保持部材２の保持孔２Ｄおよび軸受部５外周それぞれの対応する位置に設けられた所定幅の部分内周ねじ状部２Ｅと部分外周ねじ状部５Ａが、図８の断面図に示すように、所定の取付寸法位置で噛み合うと共に、軸受部５外周の凸部５Ｂが保持部材２の保持孔２Ｄの壁部を押し広げて内周の凹部２Ｆに嵌まり込むことにより取り付けられるものである。
【０００６】
なお、この保持孔２Ｄ内周の凹部２Ｆと軸受部５外周の凸部５Ｂの一方の側部は、この回動後の回り止め用の大きな当接面２Ｇおよび５Ｃとなっている。
【０００７】
また、保持部材２は樹脂製の略半円筒状で同一形状の一対の部材２Ａ，２Ｂがその中心を通る面で接合するように結合されて略円形の保持孔２Ｄを形成し、その中心に対して対称な二ヶ所に、上記の部分内周ねじ状部２Ｅおよび凹部２Ｆが配されるように構成されている。
【０００８】
なお、このスイッチ４はブレーキペダル６を踏まない通常状態でオフとなっており、踏んだ状態でオンとなるものである。
【０００９】
そして、自動車のペダルとの関係で、このスイッチ４の動作位置を調整する必要がある場合には、軸受部５を上記の取付け時とは反対方向に回転させて、軸受部５の凸部５Ｂを保持部材２の凹部２Ｆから脱出させると共に、部分内周ねじ状部２Ｅと部分外周ねじ状部５Ａの噛み合いを外し、スイッチ４を保持部材２から取り外して、再度適正な取付寸法に取り付け直しされるものであった。
【００１０】
【発明が解決しようとする課題】
しかしながら上記従来の取付寸法調整部材においては、軸受部５を所定の取付寸法となる位置で所定の方向に回動させて部分内周ねじ状部２Ｅと部分外周ねじ状部５Ａを噛み合わせる際に、軸受部５を回動させる力が大きすぎる場合や、保持部材２に係合・固定されたスイッチ４を取り外す場合に、軸受部５を回動させる方向を間違って強い力で回転させた場合に、保持部材２の保持孔２Ｄ内周の凹部２Ｆと軸受部５外周の凸部５Ｂの側部のストッパーとしての当接面２Ｇおよび５Ｃに大きな力が加わると、樹脂製の保持部材２の筒状壁部が外方へ押し広げられて凸部５Ｂが凹部２Ｆから抜け出すと共に、軸受部５の部分外周ねじ状部５Ａの先端が保持部材２の円筒壁部に強く押し付けられて潰れてしまい、保持部材２や軸受部５が再使用できなくなることがある、すなわちストッパー強度に余裕がないので、スイッチ４の軸受部５を保持部材２に取付け・取外しする際に、必要以上にスイッチ４を回転させないと共に、大きな回転力を加えないように配慮が必要であるという課題があった。
【００１１】
本発明は、このような従来の課題を解決するものであり、スイッチの軸受部等の軸部材を保持部材に取り付ける際や取り外す際の回動時のストッパーの強度を大きくして、回転角度や回転力に対して必要以上に配慮しなくてもよい取付寸法調整部材を提供することを目的とする。
【００１２】
【課題を解決するための手段】
上記課題を解決するために本発明の取付寸法調整部材は、保持部材の保持孔の内周の部分内周ねじ状部と軸部材の外周の部分外周ねじ状部を噛み合わせるための軸部材の回動後に当接する回転止め部を、保持部材の保持孔の内周の突起と軸部材の部分外周ねじ状部の端面の間で構成し、上記の回動による回転力が加わると、この回転止め部の当接部が互いに食い込む方向に滑るように、回転止め部を構成する両方の当接面を傾斜させるものである。
【００１３】
これにより、回動時のストッパー強度が大きくなり、軸部材を保持部材に取り付ける際や取り外す際の回転角度や回転力に対して必要以上に配慮しなくてもよい取付寸法調整部材を得ることができる。
【００１４】
【発明の実施の形態】
本発明の請求項１に記載の発明は、取付板に固定される樹脂製で略円筒状の保持部材と、この保持部材の略円形の保持孔に挿脱自在で、所定の挿入寸法で所定の方向に回動させることにより上記保持部材の保持孔内の部分内周ねじ状部と噛み合う部分外周ねじ状部を有すると共に、上記の回動により上記保持孔内周の凹部に嵌まり込む凸部を外周に有する樹脂製の軸部材からなる取付寸法調整部材であり、上記の回動後に当接する回転止め部が保持部材の保持孔内周の突起と軸部材の部分外周ねじ状部の端面の間で構成され、上記の部分ねじ状部どうしを噛み合わせる方向の回動による回転力が加わると、この回転止め部の当接部が互いに食い込む方向に滑るように、回転止め部を構成する両方の当接面が軸部材の中心線に対して傾斜している取付寸法調整部材としたものであり、保持部材の保持孔内周の突起と軸部材の部分外周ねじ状部の端面の間で構成される回転止め部の両方の当接面が、部分ねじ状部どうしを噛み合わせる方向の大きな回転力が加わると当接部が互いに食い込む方向、すなわち当接面積が大きくなる方向に傾斜しているので、回転止め部が変形して破損するまでのストッパー強度を大きくすることができて、軸部材を保持部材に取り付ける際や取り外す際の回転角度や回転力に対して必要以上に配慮しなくてもよい取付寸法調整部材を得ることができるという作用を有する。
【００１５】
請求項２に記載の発明は、請求項１記載の発明において、保持部材が、略円形の保持孔中心に対して点対称な二つの樹脂製の略半円筒状の部材を、中心軸線を通る面で接合して形成されたものであり、保持部材の保持孔内の部分内周ねじ状部と凹部および突起がそれぞれ中心に対して対称な二ヶ所に設けられると共に、これに対応して、軸部材の部分外周ねじ状部と凸部もそれぞれ中心に対して対称な二ヶ所に設けられたものであり、略円形の保持孔内に部分内周ねじ状部や突起を有する樹脂製の保持部材を、二つの部材に分割して樹脂成形して接合することにより容易に形成することができると共に、このようにして形成された保持部材の回転止め部としての二つの突起の当接面に軸部材の回動による回転力が加わると、この当接面には当接部が互いに食い込む方向の力、すなわち二つの突起を引き寄せる方向の力が働くので、保持部材が容易に二つの部材に分割することはないという作用を有する。
【００１６】
以下、本発明の一実施の形態による取付寸法調整部材について、従来の技術の場合と同様に、自動車のペダル部分に装着されるブレーキランプ用スイッチの取付け部を例として、図面を用いて説明する。
【００１７】
図１は本発明の一実施の形態による取付寸法調整部材としての自動車のペダル部分に装着されるスイッチに用いられる取付寸法調整部材の斜視図、図２は同分解斜視図であり、同図において、１２は略円筒状の保持部材であり、樹脂製の略半円筒状で同一形状の一対の部材１２Ａ，１２Ｂがその中心を通る面で接合されて略円形の保持孔１２Ｄを形成し、取付板１３の取付孔１３Ａに挿入されて、弾性突起部１２Ｃにより係合固定されていることは、従来の技術の場合と同じである。
【００１８】
そして、１４は保持部材１２の略円形の保持孔１２Ｄに挿脱自在な樹脂製の軸部材としての軸受部１５を有するスイッチであり、このスイッチ１４の軸受部１５を図１のＹ−Ｙ線における断面図である図３に示すように、保持孔１２Ｄに挿入して、所定の取付寸法となる位置で所定の角度だけ回動させることによって、保持部材１２の保持孔１２Ｄおよび軸受部１５外周それぞれの対応する位置に設けられた部分内周ねじ状部１２Ｅと部分外周ねじ状部１５Ａが、図４の断面図に示すように、所定の取付寸法位置で噛み合うと共に、軸受部１５外周の凸部１５Ｂが保持部材１２の保持孔１２Ｄの壁部を押し広げて内周の凹部１２Ｆに嵌まり込むように取り付けられることも従来の技術の場合と同様である。
【００１９】
しかし、保持部材１２の保持孔１２Ｄの内周には、その中心に対して対称な位置の二ヶ所の部分内周ねじ状部１２Ｅおよび凹部１２Ｆと同様に、部分内周ねじ状部１２Ｅの側方に二つの突部１２Ｈが設けられている。
【００２０】
この突部１２Ｈは、軸受部１５を保持孔１２Ｄに挿入し、所定の取付寸法位置で回転させて、軸受部１５外周の部分外周ねじ状部１５Ａを保持部材１２の保持孔１２Ｄの部分内周ねじ状部１２Ｅに噛み合わせた後、部分外周ねじ状部１５Ａの端面１５Ｄが当接して、回転止め部を構成するものである。
【００２１】
そして、この回転止め部としての突部１２Ｈの端面１２Ｉと部分外周ねじ状部１５Ａの端面１５Ｄの当接部１７は、図４の当接部１７の拡大断面図に示すように、（ａ）端面１２Ｉと端面１５Ｄが平面部どうしで当接する場合、（ｂ）端面１２Ｉの先端が端面１５Ｄ平面部に当接する場合、（ｃ）端面１２Ｉの平面部に端面１５Ｄの先端が当接する場合の三通りが考えられるが、いずれの場合においても、この当接部１７を構成する二つの平面部が当接部１７と軸部材である軸受部１５の中心を結ぶ中心線に対して傾いている。
【００２２】
すなわち、図４の（ａ）の場合、端面１２Ｉの平面部と端面１５Ｄの平面部が同角度で傾き、（ｂ）の場合、端面１２Ｉの平面部は端面１５Ｄの平面部よりも更にこの方向に傾いており、また（ｃ）の場合、端面１５Ｄの平面部は端面１２Ｉの平面部よりも更にこの方向に傾いているので、部分ねじ状部１２Ｅと１５Ａを噛み合わせる方向の回動による回転力が加わると、この当接部１７が互いに食い込む方向、すなわち当接部１７の面積が大きくなる方向に滑るように傾斜しているものである。
【００２３】
このようにすることによって、回転止め部の当接部１７が外れ難くなり、当接部１７またはその周辺が変形して破損するまでのストッパー強度を大きくすることができるものであり、当接部１７の当接面が軸受部１５の中心線に沿った方向である場合に比較して、２倍近くまでストッパー強度を大きくすることができる。
【００２４】
また、回転止め部の当接部１７の当接面をこのように傾斜させることによって、保持部材１２を形成する二つの略半円筒状の部材１２Ａ，１２Ｂを引き寄せる方向に力が働くので、保持部材１２が二つの部材１２Ａ，１２Ｂに分割されてしまう可能性も少なくなるものである。
【００２５】
【発明の効果】
以上のように本発明によれば、保持部材の保持孔の内周の部分内周ねじ状部と軸部材の外周の部分外周ねじ状部を噛み合わせるための軸部材の回動後に当接する回転止め部を、保持部材の保持孔の内周の突起と軸部材の部分外周ねじ状部の端面の間で構成し、上記の回動による回転力が加わると、この回転止め部の当接部が互いに食い込む方向に滑るように、回転止め部を構成する両方の当接面を傾斜させるものであり、回動時のストッパー強度が大きくなり、軸部材を保持部材に取り付ける際や取り外す際の回転角度や回転力に対して必要以上に配慮しなくてもよいという有利な効果が得られる。
【図面の簡単な説明】
【図１】本発明の一実施の形態による取付寸法調整部材としての自動車のペダル部分に装着されるスイッチに用いられる取付寸法調整部材の斜視図
【図２】同分解斜視図
【図３】同図１のＹ−Ｙ線における軸部材の挿入状態を示す断面図
【図４】同図１のＹ−Ｙ線における軸部材と保持部材の回転止め部の当接面を示す拡大断面図
【図５】自動車のペダル部分に装着されるスイッチに用いられた取付寸法調整部材の部分断面の側面図
【図６】従来の取付寸法調整部材の分解斜視図
【図７】同図５のＸ−Ｘ線における軸部材の挿入状態を示す断面図
【図８】同図５のＸ−Ｘ線における軸部材の取付状態を示す断面図
【符号の説明】
１２保持部材
１２Ａ，１２Ｂ部材
１２Ｃ弾性突起部
１２Ｄ保持孔
１２Ｅ部分内周ねじ状部
１２Ｆ凹部
１２Ｈ突部
１２Ｉ端面
１３取付板
１３Ａ取付孔
１４スイッチ
１５軸受部
１５Ａ部分外周ねじ状部
１５Ｂ凸部
１５Ｄ端面
１７当接部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mounting dimension adjusting member used for a mounting portion of a brake lamp switch mounted on a pedal portion of an automobile.
[0002]
[Prior art]
A conventional mounting dimension adjusting member will be described with reference to FIGS. 5 to 8 as an example of a mounting portion of a brake lamp switch mounted on a pedal portion of an automobile.
[0003]
FIG. 5 is a side view of a partial cross section of a mounting dimension adjusting member used in a switch mounted on a pedal portion of an automobile, and FIG. 6 is an exploded perspective view of a conventional mounting dimension adjusting member.
[0004]
In the figure, reference numeral 1 denotes an automobile pedal portion composed of a mounting plate 3 and the like, which will be described later, and a resin-made substantially cylindrical holding member 2 is inserted into the mounting hole 3A of the mounting plate 3 to be an elastic protrusion. 2C is engaged and fixed.
[0005]
Reference numeral 4 denotes a switch having a bearing portion 5 as a resin shaft member that can be inserted into and removed from the substantially circular holding hole 2D of the holding member 2. As shown in FIG. 7 which is a cross-sectional view of FIG. 7, the outer periphery of the holding hole 2D and the bearing portion 5 of the holding member 2 is inserted into the holding hole 2D and rotated by a predetermined angle at a position having a predetermined mounting dimension. As shown in the sectional view of FIG. 8, the partial inner peripheral threaded portion 2 </ b> E and the partial outer peripheral threaded portion 2 </ b> A having predetermined widths provided at the corresponding positions mesh with each other at predetermined mounting dimension positions, and the bearing portion 5. The outer peripheral convex portion 5B is attached by pushing the wall portion of the holding hole 2D of the holding member 2 and fitting into the inner peripheral concave portion 2F.
[0006]
One side of the concave portion 2F on the inner periphery of the holding hole 2D and the convex portion 5B on the outer periphery of the bearing portion 5 is a large contact surface 2G and 5C for preventing rotation after the rotation.
[0007]
In addition, the holding member 2 is made of a substantially semi-cylindrical resin and a pair of members 2A and 2B having the same shape are joined so as to join at a plane passing through the center thereof to form a substantially circular holding hole 2D. The above-mentioned partial inner circumferential threaded portion 2E and the concave portion 2F are arranged at two symmetrical positions.
[0008]
The switch 4 is turned off in a normal state where the brake pedal 6 is not depressed, and is turned on when the brake pedal 6 is depressed.
[0009]
Then, when it is necessary to adjust the operating position of the switch 4 in relation to the pedal of the automobile, the bearing portion 5 is rotated in the direction opposite to that at the time of mounting, and the convex portion 5B of the bearing portion 5 Is removed from the recess 2F of the holding member 2, and the engagement between the partial inner threaded portion 2E and the partial outer threaded portion 5A is removed, the switch 4 is detached from the holding member 2, and is reattached to an appropriate mounting dimension. It was something.
[0010]
[Problems to be solved by the invention]
However, in the conventional mounting dimension adjusting member, when the bearing portion 5 is rotated in a predetermined direction at a position having a predetermined mounting dimension, the partial inner circumferential threaded portion 2E and the partial outer circumferential threaded portion 5A are engaged with each other. When the force for rotating the bearing 5 is too large, or when the switch 4 engaged / fixed to the holding member 2 is removed, the direction in which the bearing 5 is rotated is erroneously rotated with a strong force. In addition, when a large force is applied to the contact surfaces 2G and 5C as stoppers on the side of the concave portion 2F on the inner periphery of the holding hole 2D of the holding member 2 and the convex portion 5B on the outer periphery of the bearing portion 5, the holding member 2 made of resin The cylindrical wall part is pushed outward and the convex part 5B comes out of the concave part 2F, and the tip of the partial outer peripheral threaded part 5A of the bearing part 5 is strongly pressed against the cylindrical wall part of the holding member 2 and is crushed. Reuse of holding member 2 and bearing part 5 In other words, since there is no margin in the stopper strength, when attaching / detaching the bearing 5 of the switch 4 to / from the holding member 2, the switch 4 should not be rotated more than necessary and a large rotational force should not be applied. There was a problem that consideration was necessary.
[0011]
The present invention solves such a conventional problem, and increases the strength of a stopper when turning a shaft member such as a bearing portion of a switch to or from a holding member to increase the rotation angle or the like. An object is to provide a mounting dimension adjusting member that does not need to consider the rotational force more than necessary.
[0012]
[Means for Solving the Problems]
In order to solve the above-described problem, the mounting dimension adjusting member of the present invention is a shaft member for meshing a partial inner peripheral threaded portion of the inner periphery of the retaining hole of the retaining member and a partial outer peripheral threaded portion of the outer periphery of the shaft member. The rotation stop portion that abuts after the rotation is configured between the inner peripheral protrusion of the holding hole of the holding member and the end surface of the partial outer peripheral screw-like portion of the shaft member. Both contact surfaces constituting the rotation stop portion are inclined so that the contact portions of the stop portion slide in the direction of biting each other.
[0013]
Thereby, the stopper strength at the time of rotation is increased, and it is possible to obtain a mounting dimension adjusting member that does not need to consider more than necessary with respect to the rotational angle and rotational force when attaching or removing the shaft member to the holding member. it can.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
According to the first aspect of the present invention, the resin-made substantially cylindrical holding member fixed to the mounting plate and the substantially circular holding hole of the holding member can be inserted into and removed from the holding plate with a predetermined insertion dimension. And a convex part that fits into the concave part of the inner periphery of the holding hole by the rotation. A mounting dimension adjusting member made of a resin shaft member having an outer periphery on the outer periphery, and the rotation stop portion that comes into contact after the rotation is the protrusion on the inner periphery of the holding hole of the holding member and the end surface of the partially outer peripheral screw-shaped portion of the shaft member The rotation stop portion is configured such that when a rotational force is applied by rotation in the direction in which the partial screw-shaped portions are engaged with each other, the contact portions of the rotation stop portion slide in the direction of biting each other. Both contact surfaces are inclined with respect to the center line of the shaft member This is a mounting dimension adjusting member, and both contact surfaces of the rotation stop portion formed between the protrusion on the inner periphery of the holding hole of the holding member and the end surface of the partial outer peripheral threaded portion of the shaft member are partially threaded. When a large rotational force in the direction of meshing the parts is applied, the abutting parts are inclined to bite each other, i.e., the abutting area is increased, so that the stopper strength until the anti-rotation part is deformed and broken is increased. It is possible to obtain a mounting dimension adjusting member that can be enlarged and that does not need to consider more than necessary with respect to the rotational angle and rotational force when the shaft member is attached to or removed from the holding member.
[0015]
According to a second aspect of the present invention, in the first aspect of the present invention, the holding member passes two central semi-cylindrical members made of resin that are point-symmetric with respect to the center of the substantially circular holding hole and passes through the central axis. It is formed by joining on the surface, and the partial inner peripheral thread-like part and the recessed part and the protrusion in the holding hole of the holding member are provided in two symmetrical positions with respect to the center, and correspondingly, The shaft member's partially outer threaded portion and the convex portion are also provided at two symmetrical positions with respect to the center, and the resin-made retaining member having the partially inner circumferential threaded portion and protrusion in the substantially circular retaining hole. The member can be easily formed by dividing the member into two members, resin-molding and joining them, and on the contact surface of the two protrusions as the rotation stop portion of the holding member formed in this way When a rotational force due to the rotation of the shaft member is applied, the contact surface Part mutually biting force, that is, the direction of the force acts to attract two projections, an effect that does not holding member easily divided into two members.
[0016]
Hereinafter, a mounting dimension adjusting member according to an embodiment of the present invention will be described with reference to the drawings, taking as an example a mounting portion of a brake lamp switch mounted on a pedal portion of an automobile, as in the case of the prior art. .
[0017]
FIG. 1 is a perspective view of a mounting dimension adjusting member used in a switch mounted on a pedal portion of an automobile as an mounting dimension adjusting member according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the same. , 12 is a substantially cylindrical holding member, and a pair of substantially semi-cylindrical resin members 12A and 12B having the same shape are joined on a plane passing through the center thereof to form a substantially circular holding hole 12D. It is the same as in the case of the prior art that it is inserted into the mounting hole 13A of the plate 13 and is engaged and fixed by the elastic protrusion 12C.
[0018]
Reference numeral 14 denotes a switch having a bearing portion 15 as a resin shaft member that can be inserted into and removed from the substantially circular holding hole 12D of the holding member 12, and the bearing portion 15 of the switch 14 is indicated by a YY line in FIG. As shown in FIG. 3 which is a cross-sectional view of FIG. 3, the outer periphery of the holding hole 12D and the bearing portion 15 of the holding member 12 is inserted into the holding hole 12D and rotated by a predetermined angle at a position having a predetermined mounting dimension. As shown in the cross-sectional view of FIG. 4, the partial inner circumferential threaded portion 12 </ b> E and the partial outer circumferential threaded portion 15 </ b> A provided at each corresponding position mesh with each other at a predetermined mounting dimension position, and project the outer circumferential portion of the bearing portion 15. It is the same as in the case of the prior art that the part 15B is attached so as to expand the wall part of the holding hole 12D of the holding member 12 and fit into the recessed part 12F on the inner periphery.
[0019]
However, on the inner periphery of the holding hole 12D of the holding member 12, the side of the partial inner peripheral threaded portion 12E is the same as the two partial inner peripheral threaded portions 12E and concave portions 12F that are symmetrical with respect to the center. Two protrusions 12H are provided on the side.
[0020]
This protrusion 12H inserts the bearing portion 15 into the holding hole 12D and rotates it at a predetermined mounting dimension position so that the partial outer peripheral thread-like portion 15A on the outer periphery of the bearing portion 15 becomes the partial inner periphery of the holding hole 12D of the holding member 12. After meshing with the threaded portion 12E, the end surface 15D of the partial outer circumferential threaded portion 15A comes into contact with the rotation preventing portion.
[0021]
And the contact part 17 of the end surface 12I of the protrusion 12H as this rotation stop part and the end surface 15D of the partial outer periphery thread-like part 15A is, as shown in the expanded sectional view of the contact part 17 of FIG. When the end surface 12I and the end surface 15D are in contact with each other between the flat portions, (b) when the tip of the end surface 12I is in contact with the flat portion of the end surface 15D, (c) when the tip of the end surface 15D is in contact with the flat portion of the end surface 12I. In any case, the two flat portions constituting the contact portion 17 are inclined with respect to the center line connecting the contact portion 17 and the center of the bearing portion 15 that is the shaft member.
[0022]
That is, in the case of FIG. 4A, the plane part of the end face 12I and the plane part of the end face 15D are inclined at the same angle, and in the case of FIG. 4B, the plane part of the end face 12I is further in this direction than the plane part of the end face 15D. In the case of (c), since the flat portion of the end surface 15D is further inclined in this direction than the flat portion of the end surface 12I, rotation by rotation in a direction in which the partial screw-like portions 12E and 15A are meshed with each other. When force is applied, the abutting portions 17 are inclined so as to slide in a direction in which they abut each other, that is, in a direction in which the area of the abutting portion 17 increases.
[0023]
By doing so, the contact portion 17 of the rotation stop portion is difficult to come off, and the stopper strength until the contact portion 17 or its periphery is deformed and broken can be increased. Compared with the case where the abutting surface 17 is in the direction along the center line of the bearing portion 15, the stopper strength can be increased to nearly twice.
[0024]
Further, by tilting the contact surface of the contact portion 17 of the rotation stop portion in this way, a force acts in the direction of pulling the two substantially semi-cylindrical members 12A and 12B forming the holding member 12, so that the holding surface is held. The possibility that the member 12 is divided into the two members 12A and 12B is reduced.
[0025]
【The invention's effect】
As described above, according to the present invention, the rotation that abuts after the rotation of the shaft member for meshing the inner peripheral partial threaded portion of the inner periphery of the holding hole of the holding member and the outer peripheral partial outer threaded portion of the outer periphery of the shaft member. When the stop portion is configured between the protrusion on the inner periphery of the holding hole of the holding member and the end surface of the partial outer peripheral screw-like portion of the shaft member, when the rotational force due to the above rotation is applied, the contact portion of this rotation stop portion Both contact surfaces that make up the anti-rotation part are tilted so that they slide in the direction in which they bite into each other, increasing the stopper strength when turning, and rotating when attaching or removing the shaft member to the holding member An advantageous effect is obtained that it is not necessary to consider the angle and the rotational force more than necessary.
[Brief description of the drawings]
FIG. 1 is a perspective view of a mounting dimension adjusting member used for a switch mounted on a pedal portion of an automobile as an mounting dimension adjusting member according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the same. FIG. 4 is an enlarged cross-sectional view showing a contact surface of the shaft member and the rotation stop portion of the holding member taken along line YY in FIG. 1; 5 is a side view of a partial cross section of a mounting dimension adjusting member used in a switch mounted on a pedal portion of an automobile. FIG. 6 is an exploded perspective view of a conventional mounting dimension adjusting member. FIG. Sectional drawing which shows the insertion state of the shaft member in a line [FIG. 8] Sectional drawing which shows the attachment state of the shaft member in the XX line of FIG.
12 holding member 12A, 12B member 12C elastic projection part 12D holding hole 12E partial inner peripheral threaded part 12F concave part 12H protruding part 12I end face 13 mounting plate 13A mounting hole 14 switch 15 bearing part 15A partial outer peripheral threaded part 15B convex part 15D end face 17 Contact part

Claims

A resin-made substantially cylindrical holding member fixed to the mounting plate and a substantially circular holding hole of the holding member can be inserted into and removed from the holding member and rotated in a predetermined direction with a predetermined insertion dimension. A resin-made shaft member having a part outer peripheral threaded part that meshes with a part inner peripheral threaded part in the holding hole and having a convex part on the outer periphery that fits into the concave part of the inner peripheral hole by the above rotation. An anti-rotation part that is an attachment dimension adjusting member and contacts after the rotation is configured between the protrusion on the inner periphery of the holding hole of the holding member and the end surface of the partial outer peripheral threaded part of the shaft member. When a rotational force is applied due to the rotation in the direction of meshing the two, the contact surfaces of the anti-rotation part slide in the direction of biting into each other so that both contact surfaces constituting the anti-rotation part are at the center line of the shaft member. Mounting dimension adjusting member that is inclined with respect to.

The holding member is formed by joining two substantially semi-cylindrical members made of resin that are point-symmetric with respect to the center of the substantially circular holding hole at a plane passing through the central axis. The inner peripheral threaded portion, the concave portion and the protrusion are provided in two symmetrical positions with respect to the center, and the corresponding outer peripheral threaded portion and the convex portion of the shaft member are also respectively corresponding to the center. The mounting dimension adjusting member according to claim 1, which is provided at two symmetrical positions.