JPS6334182Y2 - - Google Patents

Description

【考案の詳細な説明】 本考案は小型スイツチの改良に関するものであ
る。従来の小型スイツチにおいては、支持体及び
固定接点を具えた合成樹脂により成型されたスイ
ツチケース内下端に可動接触子についで、合成樹
脂により成型された転換子を収容し、開口部に覆
蓋を施し、該覆蓋からの転換子の突部に合成樹脂
により成型された作動子を嵌着して成るスイツチ
の作動子を操作して転換子を回動させたとき覆蓋
に穿設された開口は転換子の突部が回動するため
に必要な間隙をもたせた開口である。したがつて
該間隙から塵埃が侵入して接点の接触不良、絶縁
不良が発生して性能低下を来たす欠点を有してい
る。[Detailed Description of the Invention] The present invention relates to an improvement of a small switch. In conventional small switches, a movable contact and a converter molded from synthetic resin are housed in the lower end of the switch case, which is molded from synthetic resin and includes a support and fixed contacts, and the opening is covered. When the converter is rotated by operating the actuator of the switch, in which an actuator molded from synthetic resin is fitted onto the protrusion of the converter from the cover, the opening formed in the cover will open the switch. This is an opening with a gap necessary for the child's protrusion to rotate. Therefore, there is a drawback that dust enters through the gap, causing poor contact and poor insulation of the contacts, resulting in a decrease in performance.

本考案は斯る点に鑑みてなされたもので、覆蓋
からの塵埃の進入を防止して塵埃によるスイツチ
の性能低下をなくする小型スイツチを得ることを
目的とし、さらには転換子、覆蓋、作動子の組立
を容易且確実にすることを目的としたものであ
る。 The present invention was developed in view of the above, and aims to provide a compact switch that prevents dust from entering through the cover and prevents the performance of the switch from deteriorating due to dust. The purpose is to make assembly of the child easy and reliable.

以下本考案の詳細を図面に示す実施例について
説明する。 The details of the present invention will be described below with reference to embodiments shown in the drawings.

第１図及び第２図において１は合成樹脂により
成型されたスイツチケースで、前後壁面に下縁を
係合部２ａ，２ｂとした突縁３ａ，３ｂがそれぞ
れ形成されている。 In FIGS. 1 and 2, reference numeral 1 denotes a switch case molded from synthetic resin, and projecting edges 3a and 3b with engaging portions 2a and 2b at the lower edges are formed on the front and rear walls, respectively.

スイツチケース１内にはほぼ平板状の可動接触
子４ａ，４ｂが内底面に突設した支持体５及びそ
の左右に突設した固定接点６ａ，６ｂの一方の固
定接点６ａに支持され、次で転換子７が収容され
ている。この転換子は第３図Ａ，Ｂ，Ｃに示すよ
うに合成樹脂により成型され、上面中央に正面に
おいて上端を円弧凸面とした山形部８を形成し、
さらに該山形部８の上端面中央に突部９を形成
し、且下面には前記可動接触子４ａ，４ｂと接し
た滑動子１０ａ，１０ｂが軸部において下面に穿
設した穴にコイルばねを介して進退自在に取付け
られている。 Inside the switch case 1, substantially flat movable contacts 4a and 4b are supported by a support 5 protruding from the inner bottom surface and fixed contacts 6a and 6b protruding from the left and right sides of the support 5, respectively. A converter 7 is accommodated. As shown in FIGS. 3A, B, and C, this converter is molded from synthetic resin, and has a chevron-shaped portion 8 whose upper end is an arcuate convex surface when viewed from the front at the center of the upper surface.
Further, a protrusion 9 is formed at the center of the upper end surface of the chevron portion 8, and a coil spring is inserted into a hole bored in the lower surface of the shaft portion of the slider 10a, 10b in contact with the movable contacts 4a, 4b. It is attached so that it can move forward and backward freely.

スイツチケース１の開口部には覆蓋１１が施さ
れ、この覆蓋は第４図Ａ，Ｂ，Ｃに示すように合
成樹脂により成型され、平板１２の中心部に前記
転換子７の山形部８が嵌入する頂部内面が円弧凹
面で裾をより拡開した凹陥部１３を形成したかま
ぼこ形の***部１４が形成され、該***部の頂部
には転換子７の突部９が貫通し且該転換子７の回
動し得る大きさの透孔１５が穿設すると共に前後
壁面に***部１４の円弧を中心とした軸１６ａ，
１６ｂが突設され且平板１２の前後縁にスイツチ
ケース１の前後壁面に形成した突縁３ａ，３ｂに
嵌合し、係合部２ａ，２ｂに係合する係止縁１７
ａ，１７ｂをもつた窓１８ａ，１８ｂを穿設した
係合片１９ａ，１９ｂに垂設され、スイツチケー
ス１の開口部に***部１４の透孔１５を転換子７
の突部９に嵌合させ、係合片１９ａ，１９ｂの窓
１８ａ，１８ｂを突縁３ａ，３ｂに嵌合させて係
止縁１７ａ，１７ｂを係合部２ａ，２ｂに係止さ
せて固定したスイツチ本体を構成し、次で覆蓋１
１の***部１４からの転換子７の突部９に作動子
２０を挿入孔２１を嵌合させて結合して成るもの
で該作動子は第５図Ａ，Ｂ，Ｃに示すように合成
樹脂により成型され、摘み２２の下端に覆蓋１１
とほぼ同形で下面開口の中空覆２３が形成され、
その内部中央に円弧凹面で前記挿入孔２１を有す
るボス２４及び該ボスを挾んで前後に軸受孔２５
ａ，２５ｂを有する支持片２６ａ，２６ｂがそれ
ぞれ垂設されていて転換子７との結合時にはボス
２４の円弧凹面が覆蓋１１の***部１４の円弧凸
面と透孔１５を常常時閉塞状態で摺動可能に密接
し、且支持片２６ａ，２６ｂの軸受孔２５ａ，２
５ｂが覆蓋１１の***部１４の前後壁の軸１６
ａ，１６ｂに嵌合し、摘み２２の操作で所要角度
回動して転換子７を回動させて可動接触子４ａ，
４ｂを開閉させるようになつている。尚図中２７
はパネル取付枠で、スイツチケース１の前後壁に
設けた突縁３ａ，３ｂと、覆蓋１１の前後突縁２
８ａ，２８ｂとの間にそれぞれ形成された凹部２
９ａ，２９ｂに弾性的に嵌合係止させた膨出部３
０ａ，３０ｂを有する係止壁３１ａ，３１ｂを窓
３２ａ，３２ｂにより形成し、後左右壁にパネル
の取付孔端縁に弾性的に係止する爪片３３ａ，３
３ｂをそれぞれ設けて成るものである。 The opening of the switch case 1 is provided with a cover 11, which is molded from synthetic resin as shown in FIG. A semicylindrical raised part 14 is formed in which the inner surface of the top to be fitted forms a recessed part 13 with a circular arc concave surface and a wider bottom, and the protruding part 9 of the converter 7 passes through the top of the raised part. A through hole 15 large enough to allow rotation of the child 7 is bored, and a shaft 16a centered on the arc of the raised portion 14 is provided on the front and rear walls.
A locking edge 17 is provided with a projection 16b protruding from the front and rear edges of the flat plate 12, and fits into projecting edges 3a and 3b formed on the front and rear walls of the switch case 1, and engages with the engaging portions 2a and 2b.
The engaging pieces 19a and 19b are vertically provided with windows 18a and 18b having windows 18a and 17b, and the through hole 15 of the raised portion 14 is inserted into the opening of the switch case 1.
The windows 18a, 18b of the engaging pieces 19a, 19b are fitted to the projecting edges 3a, 3b, and the locking edges 17a, 17b are locked to the engaging portions 2a, 2b to be fixed. Configure the switch body, and then install the cover 1.
The actuator 20 is connected to the projection 9 of the converter 7 from the protrusion 14 of the converter 7 by fitting the insertion hole 21 thereinto, and the actuator is assembled as shown in FIGS. 5A, B, and C. It is molded from resin, and a cover 11 is attached to the lower end of the knob 22.
A hollow cover 23 with an opening at the bottom is formed and has almost the same shape as the
A boss 24 has an arcuate concave surface with the insertion hole 21 in the center thereof, and bearing holes 25 are provided at the front and rear of the boss between the bosses.
Support pieces 26a and 26b having support pieces 26a and 25b are respectively provided vertically, and when connected to the converter 7, the arc concave surface of the boss 24 slides between the arc convex surface of the raised portion 14 of the cover 11 and the through hole 15 in a closed state at all times. The bearing holes 25a, 2 of the supporting pieces 26a, 26b are movably close to each other.
5b is the axis 16 of the front and rear walls of the raised portion 14 of the cover 11;
a, 16b, and is rotated by the required angle by operating the knob 22 to rotate the converter 7, and the movable contacts 4a,
4b can be opened and closed. 27 in the figure
is a panel mounting frame, which includes projecting edges 3a and 3b provided on the front and rear walls of the switch case 1, and front and rear projecting edges 2 of the cover 11.
8a and 28b respectively formed between the recesses 2
The bulging portion 3 is elastically fitted and locked to 9a and 29b.
Locking walls 31a, 31b having 0a, 30b are formed by windows 32a, 32b, and claw pieces 33a, 3 are provided on the rear left and right walls to elastically lock onto the edges of the mounting holes of the panel.
3b, respectively.

本考案は上記のように構成されているので、ス
イツチケース１と覆蓋１１とはスイツチケース１
の前後壁面の係合部２ａ，２ｂに覆蓋１１の前後
壁に形成した係止縁１７ａ，１７ｂがそれぞれ係
合して固定されているので分解の虞れは全くなく
且スイツチケース開口と覆蓋１１との間から塵埃
の侵入は全くない。また覆蓋１１の透孔１５と転
換子７の突部９との間隙は透孔１５部分が円弧凸
面に形成されると共に作動子２０の前記転換子７
の突部９への取付用のボス２４が円弧凹面で、該
作動子の作動時においても該ボス２４の円弧凹面
が透孔１５を閉塞し得るように構成されているの
で該透孔１５からの塵埃の侵入は全くなく、塵埃
の侵入による接点の接触不良、絶縁不良は無くな
り性能低下を防止し得、且構成が簡単であるため
組立が容易である等の諸効果を有する。 Since the present invention is constructed as described above, the switch case 1 and the cover 11 are connected to the switch case 1.
Since the locking edges 17a and 17b formed on the front and rear walls of the cover 11 are engaged with and fixed to the engaging portions 2a and 2b on the front and rear walls of the switch case opening and the cover 11, there is no risk of disassembly. There is no intrusion of dust from between the two. Further, the gap between the through hole 15 of the cover 11 and the protrusion 9 of the converter 7 is such that the through hole 15 portion is formed into a circular convex surface, and the converter 7 of the actuator 20
The boss 24 for attachment to the protrusion 9 has an arcuate concave surface, and is configured so that the arcuate concave surface of the boss 24 can close the through hole 15 even when the actuator is operated. There is no intrusion of dust at all, there is no contact failure or insulation failure of the contacts due to intrusion of dust, and performance deterioration can be prevented, and the structure is simple, so assembly is easy.

【図面の簡単な説明】[Brief explanation of drawings]

図面は本考案の実施例を示し、第１図は縦断正
面図、第２図は縦断側面図、第３図は転換子を示
し、Ａは正面図、Ｂは側面図、Ｃは平面図であ
る。第４図は覆蓋を示し、Ａは一部縦断正面図、
Ｂは一部縦断側面図、Ｃは平面図である。第５図
は作動子を示し、Ａは正面図、Ｂは縦断側面図、
Ｃは底面図である。 １……スイツチケース、２ａ，２ｂ……係合
部、３ａ，３ｂ……突縁、４ａ，４ｂ……可動接
触子、５……支持体、６ａ，６ｂ……固定接触
子、７……転換子、８……山形部、９……突部、
１０ａ，１０ｂ……滑動子、１１……覆蓋、１２
……平板、１３……凹陥部、１４……***部、１
５……透孔、１６ａ，１６ｂ……軸、１７ａ，１
７ｂ……係止縁、１８ａ，１８ｂ……窓、１９
ａ，１９ｂ……係合片、２０……作動子、２１…
…挿入孔、２２……摘み、２３……中空覆、２４
……ボス、２５ａ，２５ｂ……軸受孔、２６ａ，
２６ｂ……支持片。 The drawings show an embodiment of the present invention; FIG. 1 is a longitudinal front view, FIG. 2 is a longitudinal side view, and FIG. 3 is a converter; A is a front view, B is a side view, and C is a plan view. be. Figure 4 shows the cover, A is a partially longitudinal front view,
B is a partially longitudinal side view, and C is a plan view. Figure 5 shows the actuator, A is a front view, B is a vertical side view,
C is a bottom view. DESCRIPTION OF SYMBOLS 1... Switch case, 2a, 2b... Engaging part, 3a, 3b... Projection, 4a, 4b... Movable contact, 5... Support body, 6a, 6b... Fixed contact, 7... converter, 8... chevron, 9... protrusion,
10a, 10b... Slider, 11... Cover, 12
... flat plate, 13 ... recessed part, 14 ... raised part, 1
5...Through hole, 16a, 16b...Shaft, 17a, 1
7b...Locking edge, 18a, 18b...Window, 19
a, 19b...engaging piece, 20...actuator, 21...
...insertion hole, 22...knob, 23...hollow cover, 24
... Boss, 25a, 25b ... Bearing hole, 26a,
26b...Support piece.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 支持体及び固定接点を具えた合成樹脂により成
型されたスイツチケース内下端に可動接触子につ
いで、滑動子を付設して合成樹脂により成型され
た転換子を収容し、開口部に覆蓋を施し、該覆蓋
から突出した転換子の突部に合成樹脂により成型
された作動子を嵌着してなる小型スイツチであつ
て、転換子は上面中央に正面において上端を円弧
凸面とした山形部を突設すると共にその上面中央
に突部を形成し、覆蓋は、平板の中心に前記転換
子の山形部が嵌入する頂部内面が円弧凹面で裾を
より拡開した凹陥部を形成した***部が形成さ
れ、該***部の頂部には転換子の突部が貫通、回
転する透孔が穿設されると共に該***部の頂部外
面は円弧凸面に形成され、かつ***部の前後壁面
に***部の円弧を中心とした軸が外側方向に突設
され、作動子は、摘みの下端に覆蓋と略同形で下
面開口の中空覆が形成されると共に中央に転換子
の突部を挿入する挿入孔を形成したボスを垂設し
て該ボスの円弧凹面で覆蓋の***部の円弧凸面と
透孔を摺動可能に覆い、かつ該ボスの前後方向に
は覆蓋の***部に突設した軸に嵌合する軸受孔を
形成した一対の支持片を垂設したことを特徴とす
る小型スイツチ。 A switch case molded from synthetic resin, which is equipped with a support and a fixed contact, is provided with a slider next to the movable contact at the lower end of the switch case, and a converter molded from synthetic resin is housed therein, and the opening is covered. It is a small switch in which an actuator molded from synthetic resin is fitted onto the protrusion of the converter protruding from the cover, and the converter has a chevron-shaped part protruding from the center of the upper surface with the upper end thereof being a convex circular arc. At the same time, a protrusion is formed in the center of the upper surface, and the cover has a raised part formed in the center of the flat plate, in which the top inner surface into which the chevron-shaped part of the converter fits is an arcuate concave surface and a concave part with a wider base. , a through hole through which the protrusion of the converter passes through and rotates is bored at the top of the protrusion, and the outer surface of the top of the protrusion is formed into an arc convex surface, and the arc of the protrusion is formed on the front and rear walls of the protrusion. A shaft centered at is provided to protrude outward, and the actuator has a hollow cover at the lower end of the knob that is approximately the same shape as the cover and has an opening on the lower surface, and an insertion hole in the center into which the protrusion of the converter is inserted. A vertical boss is provided vertically, and the arcuate concave surface of the boss slidably covers the arcuate convex surface and the through hole of the raised part of the cover, and the boss is fitted with a shaft protruding from the raised part of the cover in the front and rear direction of the boss. A small switch characterized by having a pair of vertical support pieces each having a bearing hole formed therein.