1281303 (1) 九、發明說明 【發明所屬之技術領域】 本發明，是關於要在已具備有從驅動源的驅動旋轉軸 透過旋轉傳遞元件來輸入旋轉動作的輸入軸和對該輸入軸 進行軸支撐的機殼之裝置上安裝上述驅動源時所使用的驅 動源之安裝構造。 Φ 【先前技術】 近年來，在無塵室（clean room )等高度清淨環境下 生產的製品有增加的趨勢。例如：半導體集成電路等電子 零件或精密機器零件等。接著，於其生產過程中，設有要 從其室內空氣中去除粉塵等微細雜質用的濾淨器。 但是，若與上述濾淨器合倂，從根源來斷絕粉塵等從 上述無塵室內所使用的生產裝置漏出時就能夠達到更進一 步的效果，關於這點，生產裝置的驅動源之安裝構造也是 ⑩ 相同。 -- ‘潑明內容】 [發明欲解決之課題] 然而，習知的驅動源之安裝構造，並未顧慮到要從根 源來斷絕粉塵，因此驅動源之安裝構造部份所產生的粉塵 恐怕會漏出在應當清淨的無塵室內。 接著，是邊參照第13A圖及第13B圖邊說明其中的一 個例子。於第13A圖及第13B圖中，是圖示著要將做爲驅 (2) 1281303 動源的馬達1 1 1安裝在凸輪機構1 3 1的機殼1 3 3時所使用 的安裝構造，第13A圖爲上面圖，第13B圖爲正面圖。 於該圖示例中，上述安裝構造，是使用平板狀的底座 板1 7 1。即，該底座板〗7〗，是要安裝在凸輪機構〗3 1的 機殻1 3 3的同時，於該底座板丨7〗，是固定著馬達n i。 接著’要將該馬達1 1 1的驅動旋轉軸1 1 3的旋轉動作傳遞 至凸輪機構1 3 1的輸入軸1 4 1用的旋轉傳遞元件，是使用 # 所謂的撓帶傳動裝置1 60。詳細地說，是於上述輸入軸 1 4 1和馬達11 1驅動旋轉軸1 1 3的雙方分別固定著皮帶輪 1 6 1 a、1 6 1 b，於這些皮帶輪1 6 1 a、1 6 1 b繞掛著無端皮帶 1 6 2。此外，該撓帶傳動裝置1 6 0的全體，是以防塵蓋1 7 2 覆蓋著，該防塵蓋172也是固定在上述底座板171。 該防塵蓋1 72，於一般是金屬薄板材彎曲加工形成的 長方體形狀箱體。詳細地說，其是由平板狀的金屬薄板材 沖孔成形爲如第1 4 A圖的展開圖所示，於矩形的正面板 ® I73各邊分別連設有側面板174、174、175、175的毛胚 172a，將該毛胚172a的各側面板174、174、175、175分 別在上述正面板1 73的四邊彎曲形成的箱體，其正面板 1 73相向的面是成爲開口部（參照第1 4B圖的透視圖）。 接著，該防塵蓋172，是將其開口部朝向上述底座板171 的同時，以其開口部的緣部固定在底座板1 7 1 (參照第 13A圖及第14B圖）。 於此，通常，於該開口部緣部的4個各邊1 74a、1 74a 、175a、175a，是形成有要抵接於底座板171用的朝內側 -6 - (3) 1281303 彎曲的抵接片 174b、174b、175b、175b (參照第 )，藉由將這些抵接片 174b、174b、175b、175b 底座板171，是可使防塵蓋172的內側空間S172 種程度的密閉性。 然而，這些抵接片 174b、174b、175b、175b 1 4B圖所示於每個側面板形成分開，該分開部份成 G，恐怕會導致上述撓帶傳動裝置1 60所產生的磨 • 粉塵漏往無塵室內。 本發明，是有鑑於上述習知課題而爲的發明， 是，於要安裝驅動源用的驅動源之安裝構造中，提 可確實防止與該驅動源的安裝相關聯產生的令人擔 塵漏出的驅動源之安裝構造。 [用以解決課題之手段] 以達成上述目的爲主，本發明的驅動源之安裝 ® 是於已具備有從驅動源的驅動旋轉軸透過旋轉傳遞 ^入旋轉動作的輸入軸和要軸支撐該輸入軸的機殻 上’要安裝上述驅動源用的驅動源之安裝構造中， 爲’具備有安裝板及第2安裝面，上述安裝板，是 的面固定著上述驅動源，於另一方的面形成有上述 的驅動旋轉軸的前端部收容用的凹部的同時，形成 著該凹部的外周緣全周要安裝在上述機殼上的第i ;於上述輸入軸要突出的上述機殼的外壁面，形成 於上述第1安裝面的第2安裝面，此外，是將上述 14B圖 抵接於 具有某 ，如第 爲間隙 耗粉等 其目的 供一種 心的粉 構造， 元件來 之裝置 其特徵 於一方 驅動源 有包圍 安裝面 有對應 第1及 (4) 1281303 第2安裝面彼此互相成對面的同時將上述安裝板安裝在上 述機殻的外壁面以使上述驅動旋轉軸的前端部和上述旋轉 傳遞元件和從上述輸入軸的上述外壁面突出的突出部份是 收容在上述凹部和上述外壁面所區隔形成的空間。 本發明的其他特徵，是明顯記載在本說明書及附件圖 面中。 • [發明效果] 根據本發明時，是能夠於要安裝驅動源用的驅動源之 安裝構造中，提供一種可確實防止與該驅動源的安裝相關 聯產生的令人擔心的粉塵漏出的驅動源之安裝構造。 【實施方式】 [發明之最佳實施形態] 根據本說明書及附件圖面的記載，至少明確地揭示出 • 以下事項。 驅動源之安裝構造，是於已具備有從驅動源的驅動旋 轉軸透過旋轉傳遞元件來輸入旋轉動作的輸入軸和要軸支 撐該輸入軸的機殼之裝置上，要安裝上述驅動源用的驅動 源之安裝構造中，其特徵爲，具備有安裝板及第2安裝面 ，上述安裝板，是於一方的面固定著上述驅動源，於另一 方的面形成有上述驅動源的驅動旋轉軸的前端部收容用的 凹部的同時，形成有包圍著該凹部的外周緣全周要安裝在 上述機殼上的第1安裝面；於上述輸入軸要突出的上述機 -8- (5) 1281303 殼的外壁面，形成有對應於上述第1安裝面的第2安裝面 ，此外，是將上述第1及第2安裝面彼此互相成對面的同 時將上述安裝板安裝在上述機殼的外壁面以使上述驅動旋 轉軸的BU端部和上述旋轉傳遞元件和從上述輸入軸的上述 外壁面突出的突出部份是收容在上述凹部和上述外壁面所 區隔形成的空間。 根據上述驅動源之安裝構造時，以上述安裝板的凹部 9 和上述機殻的外壁面來區隔形成上述空間，是可使上述第 1安裝面及第2安裝面雙方毫無間隙抵接在整個上述凹部 的全周。因此，能夠確實防止上述空間內的上述旋轉傳遞 元件等產生的如磨耗粉的粉塵通過這些第1安裝面和第2 安裝面從上述空間漏出。即，上述空間內的旋轉傳遞元件 等所產生的令人擔心的粉塵是於事先確實被封閉在上述空 間內，所以能夠確實防止粉塵漏出安裝構造外。 於上述驅動源之安裝構造中，上述第1及第2安裝面 # 是以形成平坦爲佳。 根據上述驅動源之安裝構造時，由於上述第1及第2 安裝面爲平坦，所以能夠容易進行這些面的面加工。此外 ，基於該面加工的容易性，使這些第1及第2安裝面的加 工精準度提昇，其結果，可更爲提昇上述凹部和上述外壁 面所區隔形成的空間的密閉性。 ' 於上述驅動源之安裝構造中，最好是，於上述外壁面 的全面整個形成有第2安裝面’上述安裝板的平面形狀， 是與上述外壁面同形。 -9- (6) 1281303 根據上述驅動源之安裝構造時，是能夠使第2安裝面 的面積於上述機殼尺寸不擴大的範圍確保成最大，其結果 ，是能夠更進一步提昇上述空間的密閉性。 於上述驅動源之安裝構造中，最好是，於上述第1及 第2安裝面的任一方的面，突出形成有嵌合凸部的同時， 於另一方的面，在對應於上述嵌合凸部的位置，形成有上 述嵌合凸部要嵌入的嵌合凹部。 # 根據上述驅動源之安裝構造時，藉由將嵌合凸部嵌入 嵌合凹部，是能夠使上述安裝板定位在上述機殼的同時還 可使上述安裝板確實固定在上述機殻。 於上述驅動源之安裝構造中，上述機殼的外觀形狀， 是以各外壁面爲平坦並且平滑的長方體爲佳，於該機殻的 內部空間，最好是收容著可將透過上述輸入軸輸入的旋轉 動作轉換成指定旋轉動作後從輸出軸輸出的動作轉換機構 〇 • 根據上述驅動源之安裝構造時，是能夠提供一種可使 用在高度清淨環境下的動作轉換機構。即，因動作轉換機 構的機殼是形成爲長方體，其各外壁面是形成爲平坦並且 平滑，所以粉塵難以附著在上述外壁面’因此能夠長期維 持清淨的狀態。此外，假使上述外壁面附著有粉塵，也會 因各外壁面爲平坦並且平滑而容易擦拭去除’使要恢復成 原來清淨狀態而進行的清掃作業也變容易。 於上述驅動源之安裝構造中，最好是，於上述安裝板 的上述一方的面，在已形成固定的上述驅動源要覆蓋的範 -10- (7) 1281303 圍，形成有要將該安裝板緊固在上述機殼外壁面用的凸螺 紋構件要貫穿的貫穿孔。 根據上述驅動源之安裝構造時，利用要貫穿安裝板貫 穿孔的凸螺紋構件，可使上述安裝板確實緊固在機殻的外 壁面不會從外壁面脫落。 此外，形成在該安裝板上的貫穿孔，是由上述驅動源 覆蓋著完全不會露出在外部。因此，於安裝板的外面，是 • 形成爲不會出現像孔部般容易堆積粉塵的部份，所以難以 堆積粉塵，其結果，是能夠長期維持清淨的狀態。 於上述驅動源之安裝構造中，上述貫穿孔，是以具有 可收容上述凸螺紋構件頭部的魚眼座部爲佳。 根據上述驅動源之安裝構造時，上述凸螺紋構件頭部 ，因是被收容在上述貫穿孔的魚眼座部，所以不會從安裝 板應該要固定驅動源的面突出。因此，在驅動源方面就不 必下功夫形成有要收容上述凸螺紋構件頭部用的凹部，藉 Φ 此，使要覆蓋著貫穿孔的同時安裝在安裝板上的上述驅動 源的安裝能夠容易執行。 於上述驅動源之安裝構造中，最好是，於上述貫穿孔 ，形成有比上述凸螺紋構件還大型的凸螺紋構件要螺合的 凹螺紋。 根據上述驅動源之安裝構造時，要將安裝板從機殼上 拆下時的拆卸作業就變容易。即’安裝板就算是牢固緊貼 在機殻上，但只要進行下述作業就容易拆卸安裝板。 首先，是在緊固用的凸螺紋構件從上述貫穿孔抽出後 -11 - 1281303129. The invention relates to an input shaft for inputting a rotation motion through a rotation transmission element from a drive rotation shaft of a drive source, and an axis for the input shaft. The mounting structure of the driving source used when the above-mentioned driving source is mounted on the device of the supported casing. Φ [Prior Art] In recent years, there has been an increase in the number of products produced in a highly clean environment such as a clean room. For example, electronic components such as semiconductor integrated circuits or precision machine parts. Next, in the production process, a filter for removing fine impurities such as dust from the indoor air is provided. However, when the filter is combined with the filter, it is possible to achieve further effects when dust or the like is cut off from the production device used in the clean room, and the mounting structure of the drive source of the production device is also 10 is the same. -- 'Positive content' [Problem to be solved by the invention] However, the conventional driving source installation structure does not care to cut off the dust from the root cause, so the dust generated by the mounting structure of the drive source may be Leak out in a clean room that should be clean. Next, an example will be described with reference to Figs. 13A and 13B. In Figs. 13A and 13B, the mounting structure used to mount the motor 11 1 as the source of the drive (2) 1281303 to the casing 13 3 of the cam mechanism 1 3 1 is shown. Figure 13A is the top view and Figure 13B is the front view. In the example of the figure, the above-described mounting structure is a flat base plate 117. That is, the base plate 7 is to be attached to the casing 13 3 of the cam mechanism 〖3 1 , and the motor n i is fixed to the base plate 7 . Next, the rotation transmission element for transmitting the rotation shaft 1 1 3 of the motor 1 1 1 to the input shaft 1 1 1 of the cam mechanism 1 3 1 is a so-called belt transmission 1 60. In detail, the pulleys 1 6 1 a, 1 6 1 b are respectively fixed to the both of the input shaft 1 4 1 and the motor 11 1 to drive the rotating shaft 1 1 3 , and the pulleys 1 6 1 a, 1 6 1 b Wrap the endless belt 1 6 2 . Further, the entire belt drive 160 is covered with a dust cover 172, and the dust cover 172 is also fixed to the base plate 171. The dust cover 1 72 is generally a rectangular parallelepiped box formed by bending a thin metal plate. Specifically, it is formed by punching a flat metal thin plate into a developed view as shown in FIG. 4A, and side panels 174, 174, and 175 are respectively connected to the sides of the rectangular front panel® I73. The blank 172a of 175 is a box formed by bending the side panels 174, 174, 175, and 175 of the blank 172a on the four sides of the front panel 173, and the surface facing the front panel 173 is an opening ( Refer to the perspective view of Figure 14B). Next, the dust cover 172 is fixed to the base plate 177 with its opening toward the base plate 171 (see FIGS. 13A and 14B). Here, in general, the four sides 1 74a, 1 74a, 175a, and 175a at the edge portion of the opening are formed to be bent toward the inner side -6 - (3) 1281303 to be abutted against the base plate 171. The tabs 174b, 174b, 175b, and 175b (refer to the first) are such that the abutment pieces 174b, 174b, 175b, and 175b are provided with the base plate 171 so that the inner space S172 of the dust cover 172 can be sealed. However, the abutting pieces 174b, 174b, 175b, 175b 14B are formed to be separated from each of the side panels, and the separated portions are G, which may cause the grinding and dust leakage generated by the above-mentioned belt transmission device 60. Go to the clean room. The present invention has been made in view of the above-described conventional problems, and it is possible to surely prevent dust leakage occurring in association with the mounting of the driving source in the mounting structure of the driving source for mounting the driving source. The installation structure of the drive source. [Means for Solving the Problem] In order to achieve the above object, the mounting source of the driving source of the present invention is provided with an input shaft and a main shaft that are provided with a driving rotation shaft from a driving source. In the mounting structure of the drive shaft for mounting the above-mentioned drive source on the casing of the input shaft, the mounting plate and the second mounting surface are provided, and the above-mentioned driving source is fixed to the surface of the mounting plate. The surface is formed with the concave portion for accommodating the front end portion of the rotating shaft, and the ith is to be attached to the casing over the entire circumference of the outer periphery of the concave portion; the casing is protruded from the casing The wall surface is formed on the second mounting surface of the first mounting surface, and the 14B is abutted against a powder structure having a purpose such as a first gap consumption, and the like. The driving plate is mounted on the outer wall surface of the casing while the driving source has a surrounding mounting surface corresponding to the first and (4) 1281303, and the second mounting surface is opposite to each other to rotate the driving surface. And said distal end portion of the shaft and the rotation transmitting member from the outer wall surface of the input shaft protruding portion protrudes is housed in the recess and the outer wall surface of the space formed by the segments. Other features of the invention are apparent from the description and accompanying drawings. [Effect of the Invention] According to the present invention, it is possible to provide a drive source capable of reliably preventing the occurrence of fearful dust leakage associated with the mounting of the drive source in the mounting structure of the drive source for mounting the drive source. Installation structure. [Embodiment] [Best Embodiment of the Invention] According to the description of the specification and the attached drawings, at least the following items are clearly disclosed. The mounting structure of the driving source is provided on an apparatus that includes an input shaft that receives a rotation operation from a driving rotation axis of the driving source through a rotation transmitting element and a casing that supports the input shaft, and the driving source is mounted. In the mounting structure of the drive source, the mounting plate and the second mounting surface are provided, and the mounting plate has the driving source fixed to one surface and the driving rotating shaft of the driving source formed on the other surface. The concave portion for accommodating the distal end portion is formed with a first mounting surface to be attached to the casing over the entire circumference of the outer peripheral edge of the concave portion, and the machine -8-(5) 1281303 to be protruded from the input shaft. The outer wall surface of the casing is formed with a second mounting surface corresponding to the first mounting surface, and the mounting plate is attached to the outer wall surface of the casing while the first and second mounting surfaces are opposed to each other. The protruding portion of the BU end portion of the driving rotating shaft and the rotation transmitting member and the outer wall surface protruding from the input shaft are formed by being partitioned between the concave portion and the outer wall surface. space. According to the mounting structure of the driving source, the space is formed by the recessed portion 9 of the mounting plate and the outer wall surface of the casing, so that the first mounting surface and the second mounting surface can be contacted without any gap therebetween. The entire circumference of the above recess. Therefore, it is possible to surely prevent the dust such as the abrasion powder generated by the above-described rotation transmitting element or the like in the space from leaking from the space through the first mounting surface and the second mounting surface. In other words, the fearful dust generated by the rotation transmitting element or the like in the space is surely sealed in the space in advance, so that it is possible to reliably prevent the dust from leaking out of the mounting structure. In the mounting structure of the above-described driving source, it is preferable that the first and second mounting faces # are formed flat. According to the mounting structure of the above-described driving source, since the first and second mounting surfaces are flat, surface processing of these surfaces can be easily performed. Further, the accuracy of the processing of the first and second mounting faces is improved by the easiness of the surface processing, and as a result, the airtightness of the space formed by the recessed portion and the outer wall surface can be further improved. In the above-described mounting structure of the driving source, it is preferable that the second mounting surface of the outer wall surface is formed in a planar shape of the mounting plate, and is formed in the same shape as the outer wall surface. -9- (6) 1281303 According to the mounting structure of the above-mentioned driving source, the area of the second mounting surface can be maximized in a range in which the size of the casing is not enlarged, and as a result, the sealing of the space can be further improved. Sex. Preferably, in the mounting structure of the driving source, the fitting convex portion is formed to protrude from one of the first and second mounting surfaces, and the other surface corresponds to the fitting. A fitting recess in which the fitting convex portion is to be fitted is formed at a position of the convex portion. # According to the mounting structure of the above-described driving source, by fitting the fitting convex portion into the fitting concave portion, the mounting plate can be positioned on the casing, and the mounting plate can be surely fixed to the casing. In the mounting structure of the driving source, the outer shape of the casing is preferably a rectangular parallelepiped having a smooth outer wall surface, and the inner space of the casing is preferably housed to be input through the input shaft. The rotation conversion operation is converted into a motion conversion mechanism that is output from the output shaft after the predetermined rotation operation. 根据 When the drive source is mounted, it is possible to provide a motion conversion mechanism that can be used in a highly clean environment. In other words, since the casing of the operation conversion mechanism is formed into a rectangular parallelepiped and the outer wall surfaces thereof are formed to be flat and smooth, it is difficult for the dust to adhere to the outer wall surface, so that the clean state can be maintained for a long period of time. In addition, even if dust is adhered to the outer wall surface, the outer wall surface is flat and smooth, and it is easy to wipe off, and it is easy to perform the cleaning operation to return to the original clean state. Preferably, in the mounting structure of the driving source, the one surface of the mounting plate is formed so as to be covered by a range of -10 (7) 1281303 which is to be covered by the fixed driving source. The plate is fastened to the through hole through which the male screw member for the outer wall surface of the casing is to be penetrated. According to the mounting structure of the above-described driving source, the above-mentioned mounting plate can be surely fastened to the outer wall surface of the casing without being detached from the outer wall surface by the male screw member which is to be pierced through the mounting plate. Further, the through hole formed in the mounting plate is completely covered by the above-mentioned driving source and is not exposed to the outside. Therefore, on the outside of the mounting plate, it is formed so that dust does not easily accumulate like a hole, and it is difficult to accumulate dust. As a result, it is possible to maintain a clean state for a long period of time. In the above-described mounting structure of the drive source, the through hole is preferably a fisheye seat portion that can accommodate the head of the male screw member. According to the mounting structure of the above-described driving source, since the male screw member head portion is housed in the fisheye seat portion of the through hole, it does not protrude from the surface of the mounting plate where the driving source should be fixed. Therefore, it is not necessary to make a recess for forming the head of the male screw member in the driving source, and the mounting of the above-mentioned driving source which is mounted on the mounting board while covering the through hole can be easily performed. . In the above-described mounting structure of the drive source, it is preferable that a concave thread to be screwed to the male screw member which is larger than the male screw member is formed in the through hole. According to the mounting structure of the above-described driving source, the detaching work when the mounting plate is detached from the casing becomes easy. That is, the mounting plate is firmly attached to the casing, but the mounting plate can be easily removed by performing the following operations. First, after the male screw member for fastening is withdrawn from the through hole -11 - 1281303
’對該貫穿孔的凹螺紋螺入上述大型凸螺紋構件。如此一 來’該凸螺紋構件的前端部是抵接於機殼，雖然這以上的 凸螺紋構件螺入是受到限制，但繼續螺入時，該螺入會造 成千斤頂作用，即’凸螺紋構件會賦予安裝板要離開機殻 的力量，該力量使安裝板和機殼之間形成間隙，藉此，安 裝板就能夠容易從機殻上拆除。 於上述驅動源之安裝構造中’上述安裝板的外面，是 • 以形成平坦並且平滑爲佳。 根據上述驅動源之安裝構造時，粉塵就難以附著在安 裝板外面，能夠長期維持清淨狀態。 於上述驅動源之安裝構造中，上述旋轉傳遞元件，最 好是：固定在上述驅動旋轉軸上的齒輪；及，爲該齒輪所 咬合的同時固定在上述輸入軸上的齒輪。 根據上述驅動源之安裝構造時，透過上述齒輪的咬合 ，使旋轉動作能夠從驅動旋轉軸確實傳遞至輸入軸。另， • 該咬合所可能產生的磨耗粉等粉塵’是確實被封閉在上述 凹部和上述外壁面所區隔形成的空間’可確實防止粉塵漏 出安裝構造外。 == = ==第1實施形態=== 第1圖至第4圖’是本發明相關第1實施形態的驅動 源1 1之安裝構造說：明用的圖面°第1圖爲透視圖’第2 圖爲上面圖，第3圖爲正面圖。第4圖，是表不安裝構造 相關各元件分解後的上面圖。另’於第4圖中’安裝板7 1 -12- (10) 1281303 。接著，是將該凹部72面對著上述輸入軸41要突出的機 殼33的外壁面33g的同時，將該安裝板71固定在上述機 尽又3 3上’藉此來女裝馬達1 1。只是’於此時’是形成爲 以上述凹部7 2和上述外壁面3 3 g來區隔形成空間S 7 2， 於該空間S 72收容著：上述驅動旋轉軸1 3的前端部1 3 a ; 固定在該前端部上的上述第2齒輪63;上述輸入軸41的 前端部4 1 a從上述外壁部3 3 g突出的突出部份；固定在該 前端部4 1 a上的上述第1齒輪6 1。 於此’於第5圖及弟6圖，雖是分別圖不著第4圖中 V-V箭頭視線方向所看到的安裝板7 i的背面圖及第4圖 中VI_VI箭頭視線方向所看到的機殼33的正面圖，但如 第5圖所示，於該安裝板71的面71b，是形成有包圍著上 述凹部7 2外周緣全周的第1安裝面8 1 (第5圖中斜線所 示部份），另一方面，於第6圖所示的機殼3 3的外壁面 33g，是形成有對應於上述第1安裝面81的第2安裝面83 (第6圖中斜線所示部份）。接著，在上述的安裝狀態下 ，如第2圖所示，上述第1及第2安裝面81、83彼此因 是互相爲對面，所以上述第1安裝面81及上述第2安裝 面83雙方是可毫無間隙抵接在整個上述凹部72的全周。 其結果，被收容在上述空間S72內的上述第1及第2齒輪 6 1、63的咬合所可能產生的磨耗粉等粉塵是確實被封閉在 上述空間S 72內不會從上述第1安裝面81和上述第2安 裝面8 3之間漏出外部。 以下，是針對該驅動源1 1之安裝構造進行詳細說明 -14- (11) 1281303 。第7圖，是第1圖中VII-VII箭頭剖線方向的橫剖面圖 ，第8圖，是第1圖中VIII-VIII剖線箭頭方向的縱剖面 圖。另，兩圖有一部份均是以俯視或側視來圖示，此外， 第7圖是表示安裝板7 1已拆掉的狀態。 如第7圖及第8圖所示，上述凸輪機構3 1的機殼3 3 ，是由6個壁部形成的長方體形狀箱體，即，其具備有前 面壁部33a、後面壁部33b上面壁部33c、下面壁部33d、 # 右側面壁部33e及左側面壁部33d。另，這些壁部33a、 33b、·· ，33f的外壁面，都是形成平坦並且平滑，如此 一來，於上述外壁面上，就難以附著空中漂浮的粉塵，又 ，假使附著粉塵也能夠容易擦拭去除。 於這些壁部 33a、33b、·· .33f當中的前面壁部 3 3 a及後面壁部3 3 b，如第7圖所示，是分別設有要軸支 撐上述輸入軸41用的軸承43a、43b，該輸入軸41，是被 配置成其軸心C41朝向前後方向。另，於此，後面壁部 • 33b的軸承43b，因是嵌合於該後面壁部33b內壁面所形 成的 '凹部44b，所以輸入軸41的後端部41b是不會突出 在機殼33的外側，但前面壁部33a的軸承43a，是透過蓋 構件45固定在前面壁部33a的貫穿孔44a，因此，該輸入 軸41的前端部41a，是從前面壁部33a突出在機殼33外 側。接著，於該前面壁部3 3 a的外壁面3 3 g，加工形成有 要安裝上述安裝板71用的上述第2安裝面83(第6圖中 斜線所示部份）。另，該第2安裝面8 3，是形成平坦，因 此容易進行面加工。此外，由於容易進行面加工所以也能 -15- (12) 1281303 夠提昇第2安裝面83的加工精準度。上述第2安裝面 的面加工上的特徵，是與下述安裝板71的第1安裝面 相同，於此省略其說明。 另，於此輸入軸41，如第6圖所不’是被配置在前 壁部3 3 a的左側部份，這是因爲如第8圖所示上述輸出 5 1是被配置在機殻3 3內的右側空間。此外，於該輸入 4 1的前端部4 1 a，是固定箸與其成爲相同旋轉中心的上 第1齒輪61。 另一方面，如第4圖及第5圖所示’上述安裝板71 是其平面形狀和機殼3 3的前面壁部3 3 a同形的矩形板 全面都是形成同一厚度。接著，該安裝板71的6個外 ，也是和上述凸輪機構3 1的機殼3 3的外壁面相同，都 形成平坦並且平滑。因此，於安裝板7 1的外面上，就 以附著空中漂浮的粉塵，又，假使附著粉塵也能夠容易 拭去除。 於第9圖，圖示著第4圖中IX-IX箭頭視線的正面 。如第9圖及第4圖所示，於該安裝板71的前面71a 左側部份，是形成有馬達1 1的裝配面87 (第9圖中斜 所不部份，以下稱馬達裝配面），於其相反面的後面7 ，如第5圖及第4圖所示，是形成有上述凹部72。另， 達裝配面87會形成在右側部份的原因是，如上述，因 在機殼3 3的前面壁部3 3 a的外壁面3 3 g的左側部份突 有凸輪機構3 1的輸入軸4 1。 該馬達11，如第1圖至第4圖所示，具有：其大致 8 3 8 1 面 軸 軸 述 面 是 難 擦 圖 的 線 lb 馬 爲 出 矩 -16- (13) 1281303 形的凸緣1 5 a是形成鍔狀在後段部的圓筒形狀馬達本體1 5 ;可旋轉地被軸支撐在該馬達本體1 5 5上，其前端部1 3 a 是從上述凸緣1 5a後端面突出的驅動旋轉軸1 3。接著，上 述驅動旋轉軸1 3是通過已形成在如第4圖及第9圖所示 上述馬達裝配面87大致中央的貫穿孔73的同時，在上述 凸緣15a的後端面是抵接著上述馬達裝配面87成毫無間 隙面接觸狀態下，由上述凸緣1 5 a四角隅的螺栓1 6使馬 • 達1 1鎖緊固定在安裝板7 1。 另，如第4圖、第5圖及第9圖所示，安裝板7 1的 上述貫穿孔73是連通於上述凹部72，即該貫穿孔73是成 爲凹部72的一部份。因此，在上述鎖緊固定的狀態下， 上述驅動旋轉軸1 3的前端部1 3 a，如第2圖所示，是被收 容在上述安裝板7 1的凹部72。此外，於該前端部1 3 a， 雖是固定著與其相同旋轉中心的要成爲上述旋轉傳遞元件 之一方的上述第2齒輪63，但該第2齒輪63也是被收容 • 在上述凹部72。再加上，當安裝板71已經安裝在上述機 殼33上時，上述旋轉傳遞元件之另一方的上述輸入軸41 的上述第1齒輪61也是被收容在該凹部72。因此，該凹 部72，應該形成爲可收容上述第1齒輪61及上述第2齒 輪63雙方，如第4圖、第5圖及第9圖所示，其並非只 形成在安裝板7 1的右側部份應該是整個形成至左側部份 。但是，該凹部72的大小，應該以可使包圍著該凹部72 外周緣形成的第1安裝面8 1的面積變大爲目的，形成爲 收容上需要的最小尺寸，因此，於圖示例的狀況，上述凹 -17- (14) 1281303 部7 2的平面形狀，是形成爲沿著上述旋轉傳遞元件6 1、 6 3外觀形狀的同時比該外觀形狀還若干大的形狀’詳細地 說，是形成爲要比上述第1齒輪61及第2齒輪63還若干 大的2個圓彼此重疊一部份形成的維恩圖（Venn diagram )形狀。 如第5圖所示，於該安裝板71的第1安裝面81的四 角隅，分別設有要做爲嵌合凸部成爲突出的銷8 5 a ’另一 φ 方面，如第6圖所示’在對應於該第1安裝面8 1的機殼 33外壁面的第2安裝面83的四角隅，形成有要做爲嵌合 凹部的銷孔8 5 b。接著，該安裝板7 1對機殼3 3的安裝， 如第4圖及第2圖所示，是將其第1安裝面81面對著上 述第2安裝面83的同時’使上述銷85a嵌入上述銷孔85b 來執行安裝。 另，於該安裝狀態下’如第2圖所示，是由上述凹部 72和上述前面壁部33a的外壁面33g區隔形成空間S72。 # 於該空間S72，收容著被固定輸入軸41的前端部41a上的 第1齒輪6 1，及被固定在驅動旋轉軸1 3的前端部1 3 a上 的第2齒輪63，此外，包圍著上述凹部72外周緣的全周 形成的第1安裝面8 1和第2安裝面8 3是抵接成面接觸毫 無間隙。因此，被收容在上述空間S72內的上述第1及第 2齒輪6 1、6 3的咬合所可能產生的磨耗粉等粉塵，是確實 被封閉在上述空間S72內不會通過上述第1安裝面81和 第2安裝面之間漏出在外部。 於此，是參照第7圖及第8圖，針對要做爲被收容在 -18- (15) 1281303 上述機殼3 3內的動作轉換機構一例的凸輪機構3丨進行說 明。 該凸輪機構3 1，是構成爲將透過上述輸入軸4 1形成 輸入的旋轉動作轉換成指定的旋轉動作後輸出至輸出軸5 1 。輸入軸4 1，如上述，是配置成其軸心C4 1朝向前後方 向（參照第7圖）。另一方面，輸出軸51，是配置在上述 輸入軸的右側方，其軸心C 5 1，是朝向與上述輸入軸4 1 正交的上下方向。即，該輸出軸5 1，如第8圖所示，是將 其上端部和下端部藉由設置在上面壁部3 3 c及下面壁部 3 3 d的一對軸承5 3 c、5 3 d軸支撐形成可旋轉。另，下面壁 部3 3 d的軸承5 3 d，是被嵌合於下面壁部3 3 d內壁面所形 成的凹部54d，輸出軸51的下端部雖不會突出機殻33的 外側，但上面壁部3 3 c的軸承5 3 c，是透過間蓋構件5 5固 定在上面壁部33c上形成的貫穿孔54c，透過該貫穿孔 5 4c使輸出軸51的上端部，是從上面壁部33c突出在機殼 3 3外側。因此，是從該上端部將動作轉換後的旋轉動作的 輸出取出至機殼3 3外。 於該凸輪機構3 1，是使用球形凸輪3 5，該球形凸輪 3 5，如第7圖所示，是以形成在上述輸入軸4 1外周面的 螺旋狀肋條36爲本體，該肋條36的兩側面36a、36b是 做爲凸輪面來發揮功能。另一方面，於輸出軸5 1的外周 面，沿著圓周方向以等間隔設有複數的凸輪隨動件3 7，這 些凸輪隨動件3 7，是形成爲至少抵接於上述肋條3 6兩側 面36a、36b其中一方。接著，當輸入軸41進行旋轉動作 -19- (16) 1281303 時，這些凸輪隨動件37是抵接於肋條36的側面36a、36b 來轉動該側面3 6a、3 6b，於此時，從肋條3 6對凸輪隨動 件3 7是施賦著朝前後方向的旋轉扭矩，使凸輪隨動件3 7 按照順序朝前後方向送出，其結果，輸出軸5 1，是繞著朝 向上述上下方向的軸心C 5 1進行旋轉動作。 該輸出軸5 1的旋轉動作，是可透過該凸輪隨動件3 7 的肋條3 6其螺旋形狀的適宜變更來形成各種的變更，例 φ 如：透過上述肋條3 6其螺旋形狀的設定，是可將輸入軸 4 1的連續旋轉動作轉換成間歇旋轉動作後從輸出軸5 1輸 出。 附帶說明，爲防止齒輪隙造成旋轉動作精準度降低， 於上述肋骨3 6的兩側面3 6a、3 6b，經常至少形成著凸輪 隨動件37 —個一個的抵接。 ===第2實施形態==== = ® 針對第2實施形態是邊參照第1 〇 A圖、第1 〇 b圖及第 1 1圖來邊進行其說明。第10A圖，是相當於第2圖中X-X箭頭剖線的縱剖面圖，第10B圖，是第i〇A圖中B_B箭 頭剖線的剖面圖。另，於第1 〇 B圖中，馬達1 1及第2齒 輪6 3是以側視來圖示。 於上述第1實施形態，雖是將要安裝在機殻3 3上的 安裝板71的安裝，以銷85a嵌入銷孔85b來執行，但於 本第2實施形態，爲要更加確實執行該安裝，除了上述嵌 入以外還進行螺栓固定。即，如第〗〇 A圖及第i 〇B圖所示 -20- (17) 1281303 ，於安裝板7 1，是形成有做爲凸螺紋構件的螺栓9 1要貫 穿的貫穿孔93的同時。於機殼3 3形成有要螺合於上述螺 栓9 1凸螺紋的凹螺紋95，藉此使安裝板7 1鎖緊固定在機 殻33上。 但是，該貫穿孔93若露出外部時，則空中漂浮的粉 塵容易堆積在該貫穿孔93。因此，該貫穿孔93的形成位 置，是被設定在第1 〇 A圖中以二點虛線所示的上述馬達裝 φ 配面87，藉此，使該貫穿孔93是由裝配在安裝板7 1上的 馬達11的凸緣15a覆蓋著。另，如第10圖所示，該貫穿 孔93具有魚眼座部94，在鎖緊固定時螺栓9 1的頭部9 1 a ’是被收容在該魚眼座部94，以避免和上述凸緣i5a的凸 緣面造成彼此妨礙。 於第1 1A圖至第1 1D圖中，是圖示著第2實施形態 變形例的說明圖。另，第1 1A圖至第1 1 D圖，都是以相 同於第10B圖的樣式來圖示。 ^ 如第1 1A圖所示，於該第2實施形態相關的貫穿孔 93的內周面，形成有比上述螺栓91還大型的螺栓92可螺 合的凹螺紋96。如此一來，要將安裝板7 ；!從機殻3 3上拆 下時的拆卸作業就變容易。即，安裝板71的銷85a就算 是牢固嵌入在上述機殻33的銷孔85b，但只要進行下述作 業就容易拆卸安裝板。 首先，如第11A圖所示，是將安裝板71上的馬達η 拆除，使貫穿孔93漏出在外部。其次，如第丨i bb圖所示 ’在緊固用的上述螺栓9 1從上述貫穿孔9 3抽出後，如第 -21 - (18) 1281303 11C圖所示，對該貫穿孔93的凹螺紋96螺入大型螺栓92 。接著，僅鎖入指定量時，該螺栓92因是比上述機殼33 的凹螺紋Μ本來要螺合的螺栓w還大，所以其前端部 92b就會抵接於上述凹螺紋95的內周緣，導致這以上的螺 入是受到限制。但是，於此繼續螺入時，該螺入會造成千 斤頂作用，即，力量的方向是作用成可使安裝板7 1和機 殼33分開。接著，該力量是與作用在上述銷孔85b和銷 8 5 a之間的嵌入力形成抵抗，使上述安裝板7 1和機殻3 3 之間形成間隙G，藉此’安裝板7 1就能夠容易從機殻3 3 上拆除。 另’從拆卸容易度的觀點來看，是以事先形成有複數 個該變形例相關的附帶凹螺紋9 6的貫穿孔9 3爲佳，和第 10A圖同樣式圖示的第12圖的例子，這些貫穿孔93、93 ’是形成在彼此於馬達1 1的驅動旋轉軸1 3相關的點對稱 的位置上。 以形成有如上述的複數貫穿孔9 3、9 3爲佳的理由是 ’因爲於這些複數的貫穿孔93的各凹螺紋96螺合螺栓96 就可使安裝板7 1與銷8 5 a的嵌入方向平行移動。即，在 要拆卸安裝板7 1時，銷8 5 a是能夠邊與嵌入方向形成平 行移動的同時邊從銷孔85b抽出，其結果，是可使該銷 8 5a從銷孔85bb抽出時所產生的阻力變小。 ===其他實施形態=== 以上，雖是針對本發明的實施形態進行了說明，但本 -22- (19) 1281303 發明並不限定於上實施形態，其是可變形成如以下所述。 (a )於上述實施形態中，動作轉換機構的一例，是 例示著具備有球形凸輪的凸輪機構3 1，但並不限定於這些 凸輪機構。即，只要是於機殼3 3具有要輸入旋轉動作的 輸入軸4 1，就可適用本發明相關的驅動源之安裝構造，例 如：上述凸輪3 1也是可被取代成應用所謂的曲柄機構等 〇 φ ( b )於上述實施形態中，旋轉傳遞元件的一例，是 例示著由第1齒輪61及第2齒輪6 3所形成的齒輪傳動裝 置，但並不限定於這些齒輪傳動裝置。即，只要是能夠將 驅動源的驅動旋轉軸1 3的旋轉動作傳遞至輸入軸4 1的裝 置即可，例如也可使用上述的撓帶傳動裝置等。 (c )於上述實施形態中，驅動源的一例是例示著馬 達1 1，針對該馬達1 1的種類並未特別敘述，但只要具備 有根據投入動力來形成驅動旋轉的驅動旋轉軸1 3的馬達 0 均可適用，例如：可以是以電動來使驅動旋轉軸形成旋轉 的電動馬達，也可以是以空氣或油爲起動流體來使驅動旋 轉軸形成旋轉的空壓馬達或油壓馬達。 (d )於上述實施形態中，第1安裝面8 1和第2安裝 面8 3之間是沒有任何物質存在，該兩者是形成爲直接接 觸’但並不限定於此。例如從要提昇上述凹部7 2所區隔 形成的上述空間S 72的密閉性的觀點來看，在上述第1及 第2安裝面81、83上，也可塗抹有矽膠等糊狀體所形成 的密封劑。此外，在安裝板7 1爲沒有預定要拆除的狀況 - 23- (20) 1281303 時，是可以塗抹黏結劑來取代上述密封劑。 【圖式簡單說明】 第1圖爲本發明相關的第1實施形態的驅動源1 1之 安裝構造說明用的透視圖。 第2圖爲本發明相關的第1實施形態的驅動源1 1之 安裝構造說明用的上面圖。 φ 第3圖爲本發明相關的第1實施形態的驅動源1 1之 安裝構造說明用的正面圖。 第4圖爲表示上述安裝構造相關的各元件分解後的上 面圖。 第5圖爲第4圖中V-V箭頭視線的安裝板71背面圖 〇 第6圖爲爲第4圖中VI-VI箭頭視線的安裝板71背 面圖。 # 第7圖爲第1圖中VII-VII箭頭剖線的橫剖面圖。 第8圖爲第1圖中VIII-VIII箭頭剖線的縱剖面圖。 第9圖爲第4圖中ΐχ-ΐχ箭頭視線的正面圖。 第1 〇 A圖爲本發明相關的第2實施形態的驅動源1 1 之安裝構造說明用的圖面，相當於第2圖中X_X箭頭剖線 的縱剖面圖。 第10B圖爲第ι〇Α圖中B — B箭頭剖線的剖面圖。 第1 1圖爲第2實施形態變形例說明圖。 第1 2圖爲第2實施形態變形例說明圖。 -24- (21) 1281303 第1 3 A圖爲習知驅動源1 1之安裝構造說明用的上面 圖。 第1 3 B圖爲習知驅動源1 1之安裝構造說明用的正面 圖。 第14A圖爲上安裝構造所使用的防塵蓋172展開圖。 第14B圖爲防塵蓋172透視圖。 • 【主要元件符號說明】 1 1 :馬達（驅動源） 1 3 :驅動旋轉軸 1 3 a :前端部 3 1 :凸輪機構（裝置） 3 3 :機殼 3 3 g :外壁面 41 :輸入軸 # 4 1 a :前端部（突出部份） 6 1 :第1齒輪（旋轉傳遞元件） 63 :第2齒輪（旋轉傳遞元件） 71 :安裝板 7 1 a :前面（面） 7 1 b :後面（面） 72 :凹部 81 :第1安裝面 83 :第2安裝面 -25- (22) 1281303 (22) S 7 2 :空間The female thread of the through hole is screwed into the large male screw member. In this way, the front end portion of the male threaded member abuts against the casing, although the screwing of the male threaded member is limited, but when the screwing continues, the screwing may cause a jack, that is, the 'flange member This will give the mounting plate the force to leave the casing, which creates a gap between the mounting plate and the casing, whereby the mounting plate can be easily removed from the casing. In the above-described mounting structure of the driving source, the outer surface of the above-mentioned mounting board is preferably formed to be flat and smooth. According to the mounting structure of the above-described driving source, it is difficult for the dust to adhere to the outside of the mounting board, and the dust can be maintained for a long period of time. In the above-described driving source mounting structure, the rotation transmitting element is preferably a gear fixed to the driving rotating shaft; and a gear fixed to the input shaft while the gear is engaged. According to the attachment structure of the above-described drive source, the rotation can be surely transmitted from the drive rotation shaft to the input shaft by the engagement of the gears. Further, • dust such as abrasion powder which may be generated by the nip is a space which is surely closed by the recess and the outer wall surface, and can reliably prevent the dust from leaking out of the mounting structure. =====1st Embodiment=== 1st to 4th FIG. 4 is a mounting structure of the drive source 1 1 according to the first embodiment of the present invention. FIG. 1 is a perspective view. 'Figure 2 is the above picture, and Figure 3 is the front view. Fig. 4 is a top view showing the decomposition of each component in the structure. In the 'Fig. 4' mounting plate 7 1 -12- (10) 1281303. Next, the concave portion 72 faces the outer wall surface 33g of the casing 33 to be protruded from the input shaft 41, and the mounting plate 71 is fixed to the above-mentioned machine 3'. . Only the 'at this time' is formed so as to form a space S 7 2 by the recess 7 2 and the outer wall surface 3 3 g, and the space S 72 accommodates the front end portion 1 3 a of the driving rotary shaft 13 a second gear 63 fixed to the front end portion; a protruding portion of the front end portion 4 1 a of the input shaft 41 protruding from the outer wall portion 3 3 g; and the first portion fixed to the front end portion 4 1 a Gear 6 1. Here, in the fifth and sixth figures, the rear view of the mounting plate 7 i seen in the direction of the line of sight of the VV arrow in Fig. 4 and the direction of the arrow in the direction of the arrow VI_VI in Fig. 4 are respectively shown. The front view of the casing 33, but as shown in Fig. 5, the first mounting surface 8 1 surrounding the entire circumference of the outer periphery of the recessed portion 7 is formed on the surface 71b of the mounting plate 71 (the oblique line in Fig. 5) On the other hand, on the outer wall surface 33g of the casing 33 shown in Fig. 6, a second mounting surface 83 corresponding to the first mounting surface 81 is formed (the oblique line in Fig. 6) Show part). Then, in the above-described mounted state, as shown in FIG. 2, since the first and second mounting surfaces 81 and 83 are opposite to each other, both the first mounting surface 81 and the second mounting surface 83 are The entire circumference of the above recess 72 can be abutted without any gap. As a result, dust such as abrasion powder which may be generated by the engagement of the first and second gears 6 1 and 63 accommodated in the space S72 is surely enclosed in the space S 72 and does not pass from the first mounting surface. The outside of the 81 and the second mounting surface 83 are leaked. Hereinafter, the mounting structure of the drive source 1 1 will be described in detail -14-(11) 1281303. Fig. 7 is a cross-sectional view taken along the line VII-VII in the first drawing, and Fig. 8 is a longitudinal sectional view taken along the line VIII-VIII in the first drawing. In addition, a part of both figures is shown in a plan view or a side view, and in addition, Fig. 7 shows a state in which the mounting board 71 has been removed. As shown in Figs. 7 and 8, the casing 3 3 of the cam mechanism 31 is a rectangular parallelepiped casing formed of six wall portions, that is, it is provided with a front wall portion 33a and a rear wall portion 33b. The wall portion 33c, the lower wall portion 33d, the # right side wall portion 33e, and the left side wall portion 33d. Further, the outer wall surfaces of the wall portions 33a, 33b, ..., 33f are all flat and smooth, so that it is difficult to adhere to the floating dust on the outer wall surface, and the dust can be easily attached. Wipe off. As shown in FIG. 7, the front wall portion 3 3 a and the rear wall portion 3 3 b among the wall portions 33a, 33b, ..., 33f are respectively provided with bearings 43a for supporting the input shaft 41. And 43b, the input shaft 41 is disposed such that its axis C41 faces the front-rear direction. Here, since the bearing 43b of the rear wall portion 33b is fitted into the recessed portion 44b formed on the inner wall surface of the rear wall portion 33b, the rear end portion 41b of the input shaft 41 does not protrude from the casing 33. On the outer side, the bearing 43a of the front wall portion 33a is fixed to the through hole 44a of the front wall portion 33a through the cover member 45. Therefore, the front end portion 41a of the input shaft 41 protrudes from the front wall portion 33a outside the casing 33. . Then, on the outer wall surface 3 3 g of the front wall portion 3 3 a, the second mounting surface 83 (the portion indicated by hatching in Fig. 6) for mounting the mounting plate 71 is formed. Further, the second mounting surface 836 is formed flat, so that surface processing can be easily performed. In addition, -15- (12) 1281303 can improve the machining accuracy of the second mounting surface 83 because it is easy to perform surface machining. The surface processing of the second mounting surface is the same as the first mounting surface of the mounting plate 71 described below, and the description thereof will be omitted. In addition, the input shaft 41, as shown in FIG. 6, is disposed on the left side portion of the front wall portion 3 3 a because the output 5 1 is disposed in the casing 3 as shown in FIG. The space on the right side of 3. Further, the front end portion 4 1 a of the input 41 is fixed to the upper first gear 61 having the same rotation center. On the other hand, as shown in Figs. 4 and 5, the above-mentioned mounting plate 71 has a rectangular shape in which the planar shape and the front wall portion 3 3 a of the casing 33 are formed in the same thickness. Next, the six outer portions of the mounting plate 71 are also the same as the outer wall surface of the casing 33 of the cam mechanism 31, and are formed flat and smooth. Therefore, on the outer surface of the mounting plate 71, the dust floating in the air is attached, and even if the attached dust is easily wiped off. In Fig. 9, the front side of the line of sight of the arrow IX-IX in Fig. 4 is shown. As shown in Figs. 9 and 4, on the left side of the front surface 71a of the mounting plate 71, the mounting surface 87 of the motor 1 1 is formed (the portion shown in Fig. 9 is not oblique, hereinafter referred to as the motor mounting surface). The rear surface 7 on the opposite side is formed with the concave portion 72 as shown in Figs. 5 and 4. Further, the reason why the assembly surface 87 is formed on the right side portion is that, as described above, the input of the cam mechanism 3 1 is protruded from the left side portion of the outer wall surface 3 3 g of the front wall portion 3 3 a of the casing 33. Axis 4 1. The motor 11, as shown in Figs. 1 to 4, has a flange of approximately 334-103, which is approximately 8 3 8 1 , and the surface of the shaft is refractory. 1 5 a is a cylindrical motor body 15 formed in a rearward portion at a rear portion; rotatably supported by the motor body 15 5 with a front end portion 1 3 a protruding from a rear end surface of the flange 15 5a The drive rotates the shaft 1 3 . Next, the drive rotating shaft 13 is formed by the through hole 73 formed substantially at the center of the motor mounting surface 87 as shown in FIGS. 4 and 9, and the rear end surface of the flange 15a is abutted against the motor. When the mounting surface 87 is in a state of no-space contact, the bolts 16 of the four corners of the flanges 15a are locked to the mounting plate 71. Further, as shown in Figs. 4, 5, and 9, the through hole 73 of the mounting plate 71 is communicated with the recess 72, that is, the through hole 73 is formed as a part of the recess 72. Therefore, in the above-described state in which the lock shaft is fixed, the front end portion 13 3 of the drive rotary shaft 13 is housed in the recess portion 72 of the mounting plate 71 as shown in Fig. 2 . Further, in the distal end portion 13a, the second gear 63 to be one of the rotation transmitting elements is fixed to the same rotation center, but the second gear 63 is also housed in the concave portion 72. Further, when the mounting plate 71 is already mounted on the casing 33, the first gear 61 of the other input shaft 41 of the above-described rotation transmitting member is also housed in the recess 72. Therefore, the recessed portion 72 should be formed so as to accommodate both the first gear 61 and the second gear 63. As shown in FIGS. 4, 5, and 9, it is not formed only on the right side of the mounting plate 71. Part of it should be the entire formation to the left part. However, the size of the recessed portion 72 should be such that the area of the first mounting surface 81 formed around the outer peripheral edge of the recessed portion 72 is increased, and the minimum size required for housing is formed. In the case, the planar shape of the concave -17-(14) 1281303 portion 792 is formed to have a shape slightly larger than the external shape of the rotation transmitting elements 6 1 and 6 3, in detail, It is formed in a Venn diagram shape formed by overlapping a part of two circles larger than the first gear 61 and the second gear 63. As shown in Fig. 5, in the four corners of the first mounting surface 81 of the mounting plate 71, there are respectively provided a pin 8 5 a 'the other φ which is to be protruded by the fitting convex portion, as shown in Fig. 6 A pin hole 8 5 b to be a fitting recess is formed at four corners of the second mounting surface 83 corresponding to the outer wall surface of the casing 33 of the first mounting surface 81. Next, the mounting plate 7 1 is attached to the casing 33, and as shown in FIGS. 4 and 2, the first mounting surface 81 faces the second mounting surface 83 while the pin 85a is attached. The above-mentioned pin hole 85b is fitted to perform mounting. Further, in the mounted state, as shown in Fig. 2, the concave portion 72 and the outer wall surface 33g of the front wall portion 33a are partitioned to form a space S72. In the space S72, the first gear 161 on the distal end portion 41a of the fixed input shaft 41 and the second gear 63 fixed to the distal end portion 13a of the drive rotary shaft 13 are housed, and surrounded by The first mounting surface 8 1 and the second mounting surface 83 formed on the entire circumference of the outer periphery of the concave portion 72 are in contact with each other in a surface contact without any gap. Therefore, dust such as abrasion powder which may be generated by the engagement of the first and second gears 6 1 and 6 3 accommodated in the space S72 is surely closed in the space S72 and does not pass through the first mounting surface. The outer surface of the 81 and the second mounting surface leaks out. Here, referring to Fig. 7 and Fig. 8, a description will be given of a cam mechanism 3A which is an example of a motion conversion mechanism that is housed in the casing 318 of -18-(15) 1281303. The cam mechanism 31 is configured to convert a rotation operation that is input through the input shaft 41 into a predetermined rotation operation, and then output it to the output shaft 5 1 . As described above, the input shaft 4 1 is disposed such that its axis C4 1 faces forward and backward (see Fig. 7). On the other hand, the output shaft 51 is disposed on the right side of the input shaft, and its axis C 5 1 is oriented in the vertical direction orthogonal to the input shaft 4 1 . That is, the output shaft 5 1, as shown in Fig. 8, is a pair of bearings 5 3 c, 5 3 having its upper end portion and lower end portion provided on the upper wall portion 3 3 c and the lower wall portion 3 3 d. The d-axis support forms a rotatable. Further, the bearing 5 3 d of the lower wall portion 3 3 d is a concave portion 54d formed by being fitted to the inner wall surface of the lower wall portion 3 3 d, and the lower end portion of the output shaft 51 does not protrude outside the casing 33, but The bearing 5 3 c of the upper wall portion 3 3 c is a through hole 54c formed by the cover member 55 fixed to the upper wall portion 33c, and the upper end portion of the output shaft 51 is transmitted through the through hole 54c from the upper wall The portion 33c protrudes outside the casing 33. Therefore, the output of the rotation operation after the operation is switched from the upper end portion is taken out of the casing 3 3 . In the cam mechanism 31, a spherical cam 35 is used. As shown in FIG. 7, the spiral rib 36 formed on the outer peripheral surface of the input shaft 41 is a body, and the rib 36 is The two side faces 36a, 36b function as cam faces. On the other hand, on the outer peripheral surface of the output shaft 51, a plurality of cam followers 3, 7 are formed at equal intervals along the circumferential direction, and these cam followers 37 are formed to at least abut against the ribs 36. One of the two side faces 36a, 36b. Then, when the input shaft 41 performs the rotation operation -19-(16) 1281303, the cam followers 37 abut against the side faces 36a, 36b of the rib 36 to rotate the side faces 36a, 36b, at this time, from The ribs 36 and the cam followers 37 are biased in the front-rear direction, and the cam followers 37 are sequentially fed in the front-rear direction. As a result, the output shaft 51 is oriented in the up and down direction. The axis C 5 1 rotates. The rotation of the output shaft 51 is variously changed by the appropriate change of the spiral shape of the ribs 36 which can be transmitted through the cam follower 37. For example, the spiral shape of the ribs 63 is transmitted. It is possible to convert the continuous rotation operation of the input shaft 41 into an intermittent rotation operation and output it from the output shaft 51. Incidentally, in order to prevent the accuracy of the rotation of the gear gap from being lowered, the cam followers 37 are often abutted at least on both side faces 36a, 36b of the ribs 36. ===Second Embodiment ==== = ® In the second embodiment, the description will be made with reference to the first 〇A diagram, the first 〇b diagram, and the eleventh diagram. Fig. 10A is a longitudinal sectional view corresponding to a line taken along the line X-X in Fig. 2, and Fig. 10B is a sectional view taken along line B_B of the first drawing. Further, in Fig. 1B, the motor 1 1 and the second gear 63 are shown in a side view. In the first embodiment described above, the attachment of the mounting plate 71 to be attached to the casing 33 is performed by inserting the pin 85a into the pin hole 85b. However, in the second embodiment, the mounting is performed more reliably. In addition to the above embedding, bolting is also performed. That is, as shown in Fig. 〇A and Fig. -20B, -20-(17) 1281303, the mounting plate 171 is formed with the through hole 93 through which the bolt 9 1 as a male screw member is to be inserted. . The casing 33 is formed with a female thread 95 to be screwed to the male thread of the above-mentioned bolt 91, whereby the mounting plate 7 1 is locked and fixed to the casing 33. However, when the through hole 93 is exposed to the outside, dust floating in the air is likely to accumulate in the through hole 93. Therefore, the position at which the through hole 93 is formed is set to the motor mounting surface 87 indicated by a two-dot chain line in the first drawing A, whereby the through hole 93 is fitted to the mounting plate 7. The flange 15a of the motor 11 on 1 is covered. Further, as shown in Fig. 10, the through hole 93 has a fisheye seat portion 94, and the head portion 9 1 a ' of the bolt 9 1 is accommodated in the fish eye seat portion 94 at the lock fastening timing to avoid the above The flange faces of the flange i5a cause mutual obstruction. In the first to third embodiments, the first embodiment shows a modification of the second embodiment. In addition, the 1st to 11th drawings are all illustrated in the same manner as the 10B. As shown in Fig. 1A, the inner peripheral surface of the through hole 93 according to the second embodiment is formed with a female screw 96 which can be screwed by a bolt 92 which is larger than the bolt 91. As a result, the disassembly work when the mounting plate 7;! is removed from the casing 3 3 becomes easy. That is, the pin 85a of the mounting plate 71 is firmly fitted into the pin hole 85b of the casing 33, but the mounting plate can be easily removed by the following operation. First, as shown in Fig. 11A, the motor η on the mounting plate 71 is removed, and the through hole 93 is leaked to the outside. Next, as shown in Fig. ii, the above-mentioned bolt 9 1 for fastening is taken out from the above-mentioned through hole 913, as shown in Fig.-21 - (18) 1281303 11C, the concave hole 93 is formed. The thread 96 is screwed into the large bolt 92. Then, when the predetermined amount is locked, the bolt 92 is larger than the bolt w to be screwed by the concave thread of the casing 33, so that the front end portion 92b abuts against the inner circumference of the concave thread 95. The screwing that causes this is limited. However, when the screwing continues, the screwing causes a jacking action, i.e., the direction of the force acts to separate the mounting plate 71 and the casing 33. Then, the force is resisted by the insertion force acting between the pin hole 85b and the pin 854a, so that a gap G is formed between the mounting plate 7 1 and the casing 3 3, whereby the mounting plate 7 1 is It can be easily removed from the case 3 3 . Further, from the viewpoint of easiness of detachment, it is preferable that the through hole 9 3 having a plurality of the additional concave threads 96 related to the modification is formed in advance, and the example of the 12th figure shown in the same manner as in the 10A diagram is used. These through holes 93, 93' are formed at positions symmetrical with each other in relation to the driving rotational axis 13 of the motor 11. The reason why the plurality of through holes 9 3 and 93 are formed as described above is because 'the insertion of the mounting plate 7 1 and the pin 8 5 a because the respective female threads 96 of the plurality of through holes 93 are screwed with the bolts 96 The directions move in parallel. That is, when the mounting plate 7 1 is to be detached, the pin 8 5 a can be pulled out from the pin hole 85b while being moved in parallel with the fitting direction, and as a result, the pin 8 5a can be taken out from the pin hole 85bb. The resulting resistance is small. ===Other Embodiments === Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiment, and is variably formed as described below. . (a) In the above embodiment, the cam mechanism 3 1 including the spherical cam is exemplified as an example of the operation switching mechanism, but the present invention is not limited to these cam mechanisms. That is, as long as the casing 3 3 has the input shaft 4 1 to which the rotational motion is to be input, the mounting structure of the driving source according to the present invention can be applied. For example, the cam 31 can be replaced with a so-called crank mechanism. 〇φ (b) In the above embodiment, the example of the rotation transmitting element is a gear transmission formed by the first gear 61 and the second gear 63. However, the present invention is not limited to these gear transmissions. In other words, the above-described flexible belt transmission device or the like may be used as long as it can transmit the rotation operation of the drive rotating shaft 13 of the drive source to the input shaft 41. (c) In the above-described embodiment, the motor 1 is exemplified as an example of the type of the motor 1, and the type of the motor 1 1 is not particularly described. However, the drive shaft 1 3 that is driven to rotate according to the input power is provided. The motor 0 can be applied, for example, an electric motor that electrically rotates the drive rotary shaft, or a pneumatic motor or a hydraulic motor that rotates the drive rotary shaft by using air or oil as a starting fluid. (d) In the above embodiment, no substance exists between the first mounting surface 8 1 and the second mounting surface 83, and the two are formed to be in direct contact with each other, but are not limited thereto. For example, from the viewpoint of improving the airtightness of the space S 72 formed by the recesses 72, the first and second mounting surfaces 81 and 83 may be formed by using a paste such as silicone. Sealant. Further, in the case where the mounting plate 71 is not intended to be removed - 23 - (20) 1281303, a binder may be applied instead of the above sealant. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view for explaining a mounting structure of a drive source 1 1 according to a first embodiment of the present invention. Fig. 2 is a top view for explaining the mounting structure of the drive source 1 1 according to the first embodiment of the present invention. Φ Fig. 3 is a front elevational view showing the mounting structure of the drive source 1 1 according to the first embodiment of the present invention. Fig. 4 is a top view showing the decomposition of each element related to the above-described mounting structure. Fig. 5 is a rear view of the mounting plate 71 of the line V-V arrow in Fig. 4. Fig. 6 is a rear view of the mounting plate 71 which is a line of view of the arrow VI-VI in Fig. 4. #图7 is a cross-sectional view taken along the line VII-VII in Fig. 1 . Fig. 8 is a longitudinal sectional view taken along the line VIII-VIII in Fig. 1; Figure 9 is a front elevational view of the arrowhead of the ΐχ-ΐχ arrow in Figure 4. Fig. 1A is a view for explaining the attachment structure of the drive source 1 1 according to the second embodiment of the present invention, and corresponds to a longitudinal cross-sectional view taken along the line X-X in Fig. 2 . Figure 10B is a cross-sectional view of the line B-B in the ι〇Α图. Fig. 1 is an explanatory view showing a modification of the second embodiment. Fig. 1 is an explanatory view showing a modification of the second embodiment. -24- (21) 1281303 The first 3A is a top view for explaining the mounting structure of the conventional drive source 1 1. Fig. 1 3B is a front view for explaining the mounting structure of the conventional drive source 1 1. Fig. 14A is a development view of the dust cover 172 used for the upper mounting structure. Figure 14B is a perspective view of the dust cover 172. • [Main component symbol description] 1 1 : Motor (drive source) 1 3 : Drive rotary shaft 1 3 a : Front end 3 1 : Cam mechanism (device) 3 3 : Case 3 3 g : Outer wall surface 41 : Input shaft # 4 1 a : Front end portion (protruding portion) 6 1 : 1st gear (rotation transmitting element) 63 : 2nd gear (rotation transmitting element) 71 : Mounting plate 7 1 a : Front (face) 7 1 b : Rear (face) 72: recess 81: first mounting surface 83: second mounting surface - 25 - (22) 1281303 (22) S 7 2 : space