M396479 五、新型說明： 【新型所屬之技術領域】 本創作係與開關裝置有關，尤指一種可提供其開關旋 鈕具有確實定位效果之旋動開關之限位結構。 【先前技術】 - 按，習用之旋轉式開關，主要係利用旋轉一旋鈕開關 籲‘以進行電路開關或調整者。惟，習用之旋轉式開關由於缺 乏有旋鈕轉動後可用以確實定位旋鈕之結構，因此常會有 旋紐於轉動後，其旋鈕轉動位置不夠確實，或旋鈕於轉動 後容易偏移之缺點’並進而將會導致開關裝置無法正常傳 遞控制訊號之情形發生。 有鑑於此，故如何改善上述問題，即為本創作之首要 課題，因此，本案創作人乃憑藉著從事相關產業之多年經 _ 驗，並經不斷苦思及試作後，才終於有本創作之產生。 【新型内容】 本創作之主要目的’係在於提供一種旋動開關之限位 結構’其係具有可於轉動其開關旋紐後，提供該 確實定位效果之功效。 ，、有 關之限位 為達前述之目的，本創作係提供一種旋動開 結構，其包含有： 3 M396479 一基座，其内部形成有一容室，並於該容室中設有一 共用接點以及複數個固定接點，且該各固定接點係分別朝 外延伸有一接腳； 一旋鈕，係軸向裝設於該基座之容室中，並可相對該 基座進行旋轉動作，該旋鈕周緣外擴形成有複數個呈朝上 凸起狀之頂推部，且於各相鄰之頂推部之間分別界定形成 有一定位部，並於該旋鈕底部設有至少一導接件，該導接 件係可隨該旋鈕轉動而選擇與其中一固定接點及共用接點 相互抵接以構成導通狀態； 一上蓋，係設於該基座上，該上蓋頂面開設有一供該 旋鈕頂部穿設之通孔，並於該上蓋中設有至少二呈相對設 置之嵌槽； 一限位彈片，係概呈圓環狀，該限位彈片係彈性設置 在該上蓋與該旋鈕各頂推部之間，該限位彈片周緣具有二 對應嵌設於該上蓋嵌槽中之翼部，且該限位彈片於朝向該 旋鈕各定位部之端面係形成有至少一可相對抵迫於其中一 定位部中之彎弧段。 而本創作之上述目的與優點，不難從下述所選用實施 例之詳細說明與附圖中，獲得深入了解。 當然，本創作在某些另件上，或另件之安排上容許有 所不同，但所選用之實施例，則於本說明書中，予以詳細 說明。 【實施方式】 M396479 首先請參閱第1圖〜第3圖，係本創作所提供之一種 旋動開關之限位結構的第一實施例，其主要係由一基座工 1、一旋鈕2 1、一上蓋3 1以及一限位彈片4 ^^斤组成， 其中： 5亥基座1 1，其内部形成有一向上開口之容室1 2， 並於該容室1 2底部中央處凸設有一樞軸i 3，並於該樞 -軸1 3旁更設有至少一擋塊1 4，該樞軸1 3周圍設有一 •共用接點15以及複數個與該共用接點丄5間隔設置之固 籲‘定接點16,且該各固定接點1 6更分別朝外延伸有一可 供插接於一電路板（圖中未示）上之接腳丄6丄，另於該 谷室1 2底部之至少一角落處凸設有一對位柱1 7。 該旋紐2 1，係軸向裝設於該基座1 1之容室1 2 中，且该％鈕2 1頂部形成有一作動部2 2，而該旋钮2 1底部則形成有一樞接部2 3，該旋钮2 1係以其樞接部 2 3對應套接於該基座1 1之樞軸1 3上而可相對該基座 1 1進行一旋轉動作，並於該樞接部2 3外周凸設有一可 •.與該基座1 1擋塊1 4對應抵接之擋片2 3 1。該旋鈕2 .1周緣外擴形成有複數個呈朝上凸起狀之頂推部24，於 本實施例中，該各頂推部2 4係呈連續圓弧之波浪狀，且 於各相鄰之頂推部2 4之間更分別界定形成有一定位部2 5，並於該旋鈕21底部之樞接部23旁接設有至少一導 接件2 6，該導接件2 6係可隨該旋鈕2 1轉動而選擇與 其中一固定接點16及共用接點15相互抵接以構成導通 狀態，且每一導通位置係分別與該旋鈕2 1其中一定位部 5 M396479 2 5相互對應。 该上蓋3 1 ’係對應蓋設於該基座1 1上，而用以將 该旋鈕2 1組設於該基座1 1與該上蓋3 1之間，該旋鈕 2 1與5亥上蓋3 1之間設有一墊圈3 2，而該上蓋3 1頂 =開設有一供該旋紐2 1頂部穿設之通孔3 3，並於該上 蓋3 1頂面設有可供使用者辨識該旋鈕2 1切換位置之標 不部34,而該上蓋3 1底面係開設有一可與該基座工工 對位柱1 7相對插设之對位孔3 5，並於該上蓋3 1中設 有至少二呈相對設置之嵌槽3 6。 5亥限位彈片4 1 ’係概呈圓環狀，該限位彈片4 1係 彈性设置在該上蓋3 1與該旋鈕2丄各頂推部2 4之間， 4限位彈片3 1周、緣具有二可對應嵌設於該上蓋3丄喪槽 =6中之翼部42，並藉該二翼部42係相對嵌設於該上 蓋3 1之嵌槽3 6中以定位該限位彈片4丄，且該限位彈 片4 1於朝向該旋钮2 1各定位部2 5之端面係形成有至 少一可相對抵迫於其中一定位部2 5中之彎弧段4 3。 而經由上述結構所組成之本創作於實際使用時，如第 4圖所不，當使用者經該旋鈕2丄之作動部2 2而轉動該 旋紐1時，由於該限位彈片4 1係以其翼部4 2嵌設於 4上蓋3 1嵌槽3 6中而定位，因此當轉動該旋鈕2丄之 力道大於该限位彈片4 1所提供之頂撐彈力時 ，該旋鈕2 1之頂推部2 4即可推頂該限位彈片4 1之彎弧段4 3， 而令έ亥限位彈片4 1開始朝上壓縮變形，並使該限位彈片 4 1之彎弧段4 3得脫離與該旋鈕2 1定位部2 5 a之卡 =二=繼續旋轉該旋紐21，藉該限位彈片41本 勢抵Η使該限位彈片41之彎弧段4 3得順 i相；:Γ 2“中’而再次構成與該旋紐2 狀態。藉此’使本創作可達到該旋紐21於 定位之功效，並進而即可有效改善旋鈕2 點轉動位置㈣確實以及独2 Μ轉動後容易偏移之缺 與上ίΓί 係為本創作之第二實施例，而其 例之差異係在於，該旋-21底部之樞接 旁係接設有二導接件26a、26b，而該基座丄 1之各室1 2底部則設有二可分別對應該二導接件2 6 2 2 6 b之共用接點1 5 a、丄5 b，以及複數個與該 /、用接點15a、15b間隔設置之固定接點16，且 該二導接件2 6 a、2 6㈣可隨該祕2 1轉動而分別 與其中-固^接點1 6及相對應之共用接點1 5 a、工5 b相互抵接以構成導通狀態，並藉此即可同步傳遞出二組 控制訊號。 另如第6圖所示，係為本創作之第三實施例，而其與 上述第一實施例之差異係在於，該旋鈕2丄b周緣所外擴 形成之複數個頂推部2 4 b係呈連續尖齒狀，並於各相鄰 之頂推部2 4 b之間亦分別界定形成有一定位部2 5 b， 且该限位彈片4 1於朝向該旋鈕2 1各定位部2 5 b之端 面亦形成有至少一可相對抵迫於其中一定位部2 5 b中之 彎弧段4 3，藉此同樣可達到該旋鈕2丄b於轉動後具有 叫乃〇479 確實定位之功效’並進而即可有效改善旋鈕2 1 b轉動位 置不夠確實以及旋鈕2丨b於轉動後容易偏移之缺點。 又如第7圖所示’係為本創作之第四實施例’而其與 f述第一實施例之差異係在於，該基座1 1下方更接設有 呈中空殼狀之底座5 1，並於該底座5 1内設有複數個 槽5 2 ’且該等溝槽52係可供該基座1 1之各接腳1 ^3 Ί 令设’並藉此即可用以改變該等接腳161方向。 限制准，以上實施例之揭示係用以說明本創作，並非用以 二ί創作，故舉凡數值之變更或等效元件之置換仍應隸 屬本創作之範疇。 ^所述，本創作在與同類產品相較下係已具有相當 二·^及實用性，且經以上詳細說明後，係可使熟知本 ^明瞭本創作的確可達成前述目的，實已符合專利 ' 疋，故本案創作人爰依法提出申請。M396479 V. New description: [New technical field] This creation is related to the switchgear, especially the limit structure of the rotary switch which can provide the correct positioning effect of the switch knob. [Prior Art] - Press, the conventional rotary switch, mainly uses a rotary knob to call 'to perform circuit switching or adjustment. However, the conventional rotary switch can be used to positively position the knob due to the lack of rotation of the knob. Therefore, there is often a disadvantage that the rotation position of the knob is not sufficient after the rotation of the knob, or the knob is easily offset after the rotation. This will cause the switching device to fail to transmit the control signal normally. In view of this, how to improve the above problems is the primary issue of this creation. Therefore, the creators of this case have relied on the long-term experience of engaging in relevant industries, and after continuous hard work and trials, they finally have this creation. produce. [New content] The main purpose of this creation is to provide a limit structure of a rotary switch, which has the effect of providing the correct positioning effect after rotating the switch knob. For the purpose of the foregoing, the present invention provides a rotary opening structure comprising: 3 M396479 a base having a chamber formed therein and a common contact in the chamber And a plurality of fixed contacts, wherein the fixed contacts respectively extend outwardly with a pin; a knob is axially mounted in the cavity of the base and is rotatable relative to the base, The outer circumference of the knob is formed by a plurality of ejector portions protruding upwardly, and a positioning portion is respectively defined between the adjacent ejector portions, and at least one guiding member is disposed at the bottom of the knob. The guiding member is configured to be in contact with the fixed contact and the common contact to form a conductive state with the rotation of the knob; an upper cover is disposed on the base, and the top surface of the upper cover is provided with the knob a through hole is formed in the top, and at least two oppositely disposed slots are disposed in the upper cover; a limiting elastic piece is generally annular, and the limiting elastic piece is elastically disposed on the top cover and the top of the knob Between the push parts, the limit shrapnel circumference Two corresponding to the wing portion embedded in the cover of the insert groove, and the end surface facing the spacing elastomer based on the positioning of the knob portion is formed with at least one relative positioning abutment forced wherein a portion of the curved arc. The above objects and advantages of the present invention are not difficult to understand from the detailed description and drawings of the selected embodiments described below. Of course, this creation is tolerated on certain parts or arrangements of parts, but the selected embodiments are described in detail in this specification. [Embodiment] M396479 First, please refer to FIG. 1 to FIG. 3, which is a first embodiment of a limit structure of a rotary switch provided by the present invention, which is mainly composed of a susceptor 1 and a knob 2 1 , an upper cover 3 1 and a limiting elastic piece 4 ^ ^ kg composition, wherein: 5 Hai base 1 1, the interior thereof is formed with an upwardly open chamber 1 2, and a central portion of the bottom of the chamber 12 is convex The pivot axis i 3 is further provided with at least one stopper 14 4 beside the pivot shaft 1 3 , and the pivot shaft 13 is provided with a common contact 15 and a plurality of spaced apart from the common contact 丄 5 The fixing point 16 is fixed, and the fixed contacts 16 further extend outwardly with a pin 丄 6丄 which can be inserted into a circuit board (not shown), and the valley 1 A pair of posts 17 are protruded from at least one corner of the bottom of the bottom. The knob 2 1 is axially mounted in the chamber 1 2 of the base 1 1 , and an actuation portion 22 is formed on the top of the % button 2 1 , and a pivot portion is formed on the bottom of the knob 2 1 . 2 3, the knob 2 1 is pivotally connected to the pivot 1 3 of the base 1 1 by the pivoting portion 2 3 thereof, and can perform a rotating motion with respect to the base 1 1 , and the pivoting portion 2 is 3 The outer periphery is convexly provided with a blocking piece 2 3 1 corresponding to the base 1 1 stopper 1 4 . The outer circumference of the knob is formed by a plurality of ejector portions 24 which are upwardly convex. In the embodiment, the ejector portions 24 are formed in a continuous arc shape and are in various phases. A positioning portion 25 is defined between the adjacent pushing portions 24, and at least one guiding member 2 6 is connected to the pivoting portion 23 at the bottom of the knob 21, and the guiding member 26 is As the knob 2 1 rotates, one of the fixed contacts 16 and the common contact 15 is abutted to form an on state, and each of the conduction positions respectively corresponds to one of the positioning portions 5 M396479 2 5 of the knob 2 1 . . The upper cover 3 1 ' is correspondingly disposed on the base 1 1 , and the knob 2 1 is disposed between the base 1 1 and the upper cover 3 1 . The knobs 2 1 and 5 cover the cover 3 A washer 3 2 is disposed between the two, and the top cover 3 1 has a through hole 3 3 for the top of the knob 2 1 , and the top surface of the upper cover 3 1 is provided for the user to recognize the knob. 2 1 switch the position of the portion 34, and the bottom surface of the upper cover 3 1 defines a matching hole 35 which can be inserted opposite to the base working column 17 and is disposed in the upper cover 31 At least two of the oppositely disposed slots 36 are provided. The 5th limit spring shrapnel 4 1 ' is generally annular, and the limit elastic piece 4 1 is elastically disposed between the upper cover 3 1 and the knob 2 顶 each pushing portion 2 4 , 4 limit elastic piece 3 1 week The rim has two wings 42 that are embedded in the upper cover 3, and the two wings 42 are relatively embedded in the slot 36 of the upper cover 31 to locate the limit. The elastic piece 4 is formed on the end surface of each of the positioning portions 25 of the knob 21, and at least one curved portion 43 which is relatively opposite to one of the positioning portions 25 is formed. When the original composition composed of the above structure is used in actual use, as shown in FIG. 4, when the user rotates the knob 1 through the operation portion 2 of the knob 2, the limit elastic piece 4 1 is The wing portion 4 2 is embedded in the upper cover 3 1 of the 4 cover groove 3 6 for positioning, so when the force of rotating the knob 2 大于 is greater than the top support elastic force provided by the limit elastic piece 4 1 , the knob 2 1 The ejector portion 2 4 can push the curved portion 4 3 of the limiting elastic piece 4 1 , and the έ 限 limit elastic piece 4 1 starts to be upwardly compressed and deformed, and the curved portion 4 of the limiting elastic piece 4 1 is bent. 3 has to be disengaged from the knob 2 1 positioning portion 2 5 a card = two = continue to rotate the knob 21, by the limit elastic piece 41 this potential against the bending of the limiting elastic piece 41 3 3 Phase;: Γ 2 "中" and once again constitutes the state of the knob 2. This allows the creation of the knob 21 to achieve the effect of positioning, and thus can effectively improve the position of the knob 2 points of rotation (four) indeed and alone 2 容易 容易 容易 容易 容易 容易 容易 容易 容易 容易 容易 容易 容易 容易 容易 容易 容易 容易 容易 容易 容易 容易 容易 容易 容易 容易 容易 容易 容易 容易 容易 容易 容易 Μ Μ Μ Μ Μ Μ Μ Μ Μ Pieces 26a, 26b, and the bottoms of the chambers 1 2 of the base 1 are provided with two common contacts 1 5 a, 丄 5 b corresponding to the two guides 2 6 2 2 6 b, and a plurality of And the fixed contact 16 disposed at intervals of the contacts 15a, 15b, and the two guiding members 2 6 a, 2 6 (4) can be respectively rotated with the secret 2 1 and the middle-fixing contact 16 and phase Corresponding shared contacts 1 5 a and 5 b abut each other to form a conduction state, and thereby two sets of control signals can be synchronously transmitted. As shown in FIG. 6 , it is a third embodiment of the present creation. The difference from the first embodiment described above is that the plurality of ejector portions 2 4 b formed by the outer periphery of the knob 2 丄 b are continuously pointed and are adjacent to the ejector portion 2 . A positioning portion 2 5 b is defined between each of the b), and the limiting elastic piece 41 is formed on the end surface of each positioning portion 2 5 b of the knob 2 1 to form at least one of the positioning portions. 2 5 b in the curved arc section 4 3, thereby also achieving the function of the knob 2丄b after the rotation has the position of the caller 479, and then can effectively improve the knob 2 1 b rotation position The difference is not true and the knob 2丨b is easily offset after being rotated. Also, as shown in FIG. 7, 'is the fourth embodiment of the creation', and the difference from the first embodiment is that A base 5 1 having a hollow shell shape is further disposed under the base 1 1 , and a plurality of slots 5 2 ′ are disposed in the base 51 1 and the grooves 52 are provided for each of the bases 1 1 . The pin 1 ^3 Ί ' ' ' and can be used to change the direction of the pins 161. Limitation, the above embodiment is used to illustrate the creation, not for the creation of the two, so the value changes Replacement of equivalent components or components is still subject to the scope of this creation. ^, this creation has quite a few and practicality compared with similar products, and after the above detailed description, it can make the above-mentioned purpose can be achieved by the familiarity of this creation, and it has already met the patent. '疋, so the creator of this case filed an application in accordance with the law.