M375371 五、新型說明： 【新型所屬之技術領域】 本新型是有關於一種凸輪組件，且特別是有關於一種 防止異音之凸輪組件。 【先前技術】 ' 隨著消費性電子產品在市場上廣受歡迎，此些電子產 品係已充斥在現代人的曰常生活中。常見之掀蓋型式的電 • 子裝置，例如可攜式電腦、電子辭典、攜帶型影音播放裝 置及掀蓋式手機等，係將主體部置於下半部，並藉樞軸與 上半部之蓋體部連結。如此使蓋體部可相對於主體部開合。 現行之樞軸結構中係包含一凸輪組件，其中以轴桿穿 越多個元件，例如一凸輪件。然而在製造形成凸輪件及軸 桿時，常會在凸輪件與軸桿之間產生公差，使得凸輪件穿 接軸桿時，兩者之間具有間隙，密和度不佳。 凸輪及轴桿間的間隙會導致樞轴結構在作動時，凸輪 ® 内側面以及軸桿之表面間發生撞擊而發出聲響。當使用者 在開合電子裝置之蓋體部時，會產生凸輪及軸桿撞擊的異 - 音，影響了產品的品質。 【新型内容】 因此，為了解決發生異音的問題，本新型係提供一種 防異音之凸輪組件。 本新型之一方面是在提供一種防異音之凸輪組件。凸 3 M375371 輪組件至少包含一轴桿、一固定凸輪以及一滑動凸輪。固 定凸輪具有一穿孔，藉以穿設於軸桿。滑動凸輪具有一嵌 孔，藉以穿設於軸桿，並對接於固定凸輪。嵌孔及軸桿之 截面具有相同之非圓圖形，使滑動凸輪僅能在軸桿上軸向 移動。滑動凸輪包含一凸肋，其係凸出於嵌孔之側壁，並 且沿垂直於軸桿軸向之一方向配置於嵌孔之側壁。當滑動 凸輪經由嵌孔穿設於軸桿時，軸桿係削切凸肋，用以使凸 肋密接於軸桿。M375371 V. New description: [New technical field] The present invention relates to a cam assembly, and in particular to a cam assembly for preventing abnormal sound. [Prior Art] 'With the popularity of consumer electronics in the market, these electronic products are already plagued by the modern life of modern people. A common type of electric device, such as a portable computer, an electronic dictionary, a portable audio-visual playback device, and a flip-type mobile phone, has a main body portion placed in the lower half, and is pivoted and upper half. The cover body is connected. In this way, the lid portion can be opened and closed with respect to the main body portion. The current pivot structure includes a cam assembly in which a shaft is passed through a plurality of components, such as a cam member. However, when the cam member and the shaft are formed, a tolerance is often generated between the cam member and the shaft so that the cam member has a gap between the shaft and the shaft is not good. The gap between the cam and the shaft causes the pivot structure to make a sound when the cam ® inner side and the surface of the shaft collide. When the user opens and closes the cover of the electronic device, an abnormal sound of the cam and the shaft impact is generated, which affects the quality of the product. [New content] Therefore, in order to solve the problem of occurrence of abnormal sound, the present invention provides an anti-aliasing cam assembly. One aspect of the present invention is to provide an anti-aliasing cam assembly. The convex 3 M375371 wheel assembly includes at least one shaft, a fixed cam and a sliding cam. The fixed cam has a perforation for passing through the shaft. The slide cam has an insert hole for passing through the shaft and being attached to the fixed cam. The cross-section of the bore and the shaft have the same non-circular pattern, allowing the sliding cam to move axially only on the shaft. The sliding cam includes a rib protruding from the side wall of the fitting hole and disposed on the side wall of the fitting hole in one direction perpendicular to the axial direction of the shaft. When the sliding cam is threaded through the through hole, the shaft cuts the rib to make the rib adhere to the shaft.
依據本新型一實施例，嵌孔之側壁對應於削切前之凸 肋處具有一第一開口，嵌孔之側壁對應於削切後之凸肋處 具有一第二開口。第二開口大於第一開口。According to an embodiment of the present invention, the side wall of the insertion hole has a first opening corresponding to the rib before cutting, and the side wall of the insertion hole has a second opening corresponding to the rib after cutting. The second opening is larger than the first opening.
依據本新型另一實施例， 面積。 依據本新型又一實施例， 之面積相等^ 依據本新型再一實施例， 依據本新型另一實施例， 段係間隔配置於嵌孔之側壁。 軸桿之截面大於第一開口之 轴桿之截面及第二開口兩者 凸肋係為一連續環狀凸肋。 凸肋包含多個區段，此些區 依據本新型再一實施例，嵌孔之側壁包含兩相對平 面，凸肋包含兩區段，分別配置於兩相對平面上。 依據本新型另一實施例，欲孔之側壁包含兩相對平 面，凸肋包含多個區段，配置於兩相對平面上。 依據本新型又一實施例，滑動凸輪係為一射出成型 件，並具有一分模線。凸肋沿嵌孔側壁之分模線配置。 依據本新型再一實施例，滑動凸輪及固定凸輪之外環 4 M375371 面上更分別具有一第一止樓塊及一第二止標塊，兩止稽塊 用以相互止檔，以限制兩凸輪之相對旋轉角度。 依照本新型實施例之防異音之凸輪組件，於滑動凸輪 穿接於轴桿時，利用軸桿削切滑動凸輪嵌孔之側壁的凸 肋，使得凸肋密接於軸桿。藉之，可以避免凸輪嵌孔之側 壁撞擊轴桿而產生異音的問題。 【實施方式】 φ 依照本新型一實施例之一種防異音之凸輪組件，包含 一軸桿、一固定凸輪以及一滑動凸輪。滑動凸輪上包含一 凸肋，凸出於滑動凸輪之一嵌孔之側壁。凸肋沿垂直於轴 桿軸向之一方向配置於嵌孔之側壁。當滑動凸輪經由嵌孔 穿設於軸桿時，軸桿係削切凸肋，用以使凸肋密接於軸桿。 如此係可避免軸桿及嵌孔側壁相互碰撞而產生異音的問 題。 以下利用防異音凸輪組件之組裝方法來進行說明。請 • 參照第1圖，其繪示依照本新型一實施例之一種防異音凸 輪組件之組裝方法的流程圖。According to another embodiment of the present invention, the area. According to still another embodiment of the present invention, the area is equal. According to still another embodiment of the present invention, according to another embodiment of the present invention, the segment spacing is disposed on the sidewall of the through hole. The cross section of the shaft is larger than the cross section of the shaft of the first opening and the second opening. The rib is a continuous annular rib. The rib includes a plurality of sections, and according to still another embodiment of the present invention, the side wall of the through hole includes two opposite flat surfaces, and the rib includes two sections which are respectively disposed on the opposite planes. According to another embodiment of the present invention, the side wall of the aperture includes two opposing flat surfaces, and the rib includes a plurality of sections disposed on opposite planes. According to still another embodiment of the present invention, the sliding cam is an injection molded part and has a parting line. The ribs are arranged along the parting line of the side wall of the insert. According to still another embodiment of the present invention, the sliding cam and the fixed cam outer ring 4 M375371 have a first stop block and a second stop block respectively, and the two blocks are used to stop each other to limit two The relative rotation angle of the cam. According to the anti-aliasing cam assembly of the present invention, when the sliding cam is passed through the shaft, the rib of the side wall of the sliding cam insertion hole is cut by the shaft so that the rib is in close contact with the shaft. By this, it is possible to avoid the problem that the side wall of the cam hole hits the shaft and generates an abnormal sound. [Embodiment] φ An anti-aliasing cam assembly according to an embodiment of the present invention includes a shaft, a fixed cam and a sliding cam. The sliding cam includes a rib protruding from the side wall of one of the sliding cams. The ribs are disposed on the side wall of the fitting hole in one direction perpendicular to the axial direction of the shaft. When the sliding cam is threaded through the through hole, the shaft cuts the rib to make the rib adhere to the shaft. In this way, the problem that the shaft and the side wall of the through hole collide with each other to generate an abnormal sound can be avoided. Hereinafter, the assembly method of the anti-alias cam assembly will be described. Please refer to FIG. 1 , which is a flow chart showing a method of assembling an anti-aliasing cam assembly according to an embodiment of the present invention.
_ 首先如步驟S1所示，提供一軸桿。請同時參照第2A 及2B圖，第2A圖繪示依照本新型一實施例之一種軸桿之 立體圖，第2B圖繪示第2A圖之軸桿沿A-A'線之剖面圖。 轴桿110之截面C具有一非圓圖形。舉例來說，轴桿之截 面C具有一對平面及一對弧面，如第2B圖所繪示。 接著，如步驟S2所示，穿設一固定凸輪於軸桿。請參 照第3圖，其繪示固定凸輪穿設於軸桿時之立體圖。固定 5 MJ75371 凸輪130具有一穿孔130a ’藉以穿設於軸桿u〇。於一實 施例中’穿孔130a為圓形’固定凸輪13〇係可相對於軸桿 轉動。此外，固定凸輪130係與穿設於軸桿11〇之一支 架160同步相對於軸桿11〇轉動。於一實施例中，固定凸 輪130具有一凸起物138,用以穿接於支架16〇，使固定凸 輪13〇及支架160同步相對於軸桿11〇轉動。 請參照步驟S3，組裝方法接著進行提供一滑動凸輪之 -步驟。請參照第4A及4B圖，第4A圖繪示本新型一實施 鲁 例之滑動凸輪之立體圖，第4B圖繪示第4A圖之滑動凸輪 之前視圖。滑動凸輪150具有一鼓孔l50a，藉以穿設於軸 桿110。嵌孔150a及轴桿110之截面C具有相同之非圓圖 形（轴桿110之截面C係繪示於第2B圖），使滑動凸輪15〇 不會相對於轴桿110轉動’並且僅能在軸桿11()上轴向移 動。 此外，滑動凸輪150包含一凸肋155,凸出於嵌孔15〇a 之侧壁。亦即凸肋155設置於滑動凸輪15〇之内側環面上。 φ 滑動凸輪150經由嵌孔150a沿一穿接方向D穿接於轴桿 110,此穿接方向D平行於轴桿110之軸向。凸肋155沿^ 直於穿接方向之一方向凸出於嵌孔150a側壁，並且於該方 向上沿欲孔150a之側壁配置。 更進一步來說，步驟S3包含利用射出成型之方式形成 滑動凸輪150之步驟。也就是說’滑動凸輪15〇係為一射 出成型件’其係經由模具之澆道口將待成型之材料灌入模 具内，藉以形成滑動凸輪150。射出成型之滑動凸輪15〇 具有一分模線’凸肋155係沿嵌孔i5〇a側壁的分膜線配 6 M375371 置。實際應用上，在滑動凸輪150成型並且進行脫膜之後， 會有殘料位於滑動凸輪150對應於分膜線之處。凸肋155 係為位於嵌孔150a側壁上且對應於分膜線處的殘料。如此 一來，凸肋155係可在製作滑動凸輪150時同時形成，不 需重新設計模具，可以節省成本。 如第4A及4B圖所示，凸肋155為一連續環狀凸肋 155，其係完整環設於嵌孔150a之側壁。然而，凸肋之配 置方式並不限制於此。舉例來說，凸肋155亦可包含多個 $ 相互隔開的區段。請參照第5圖，其繪示本新型另一實施 例之滑動凸輪之前視圖。滑動凸輪550之凸肋555包含多 個區段555a。此些區段555a係間隔配置於嵌孔550a之侧 壁，相鄰之兩區段555a間具有間距。 另外請參照第6圖，其繪示本新型又一實施例之滑動 凸輪之前視圖。滑動凸輪650之凸肋655包含兩區段655a， 此兩區段655a分別配置於嵌孔650a側壁之兩相對平面上。 請參照第7圖，其繪示本新型再一實施例之滑動凸輪 φ 之前視圖。滑動凸輪750之凸肋755包含多個區段755a， 配置於嵌孔750a之兩相對平面上。如第7圖示，凸肋755 包含四個區段755a，兩兩配置於前述之兩相對平面上。在 其他實施例中，除前述連續環狀、兩個區段以及多個區段 配置之方式外，其他將凸肋沿著垂直於穿接方向D的方向 配置於嵌孔之側壁上者，均可應用於本新型。 接下來，如步驟S4所示，進行穿設滑動凸輪150之步 驟。請參照第8圖，其繪示滑動凸輪穿設於軸桿時之立體 圖。滑動凸輪150係經由嵌孔150a穿設於軸桿110，並且 M375371 對接於固定凸輪130。 穿設滑動凸輪150後，係完成本實施例之一種凸輪組 件100。依照本新型實施例之凸輪組件100中，固定凸輪 130及支架160係同步相對於滑動凸輪150及軸桿110轉 動。滑動凸輪150係可於軸桿110上，沿嵌孔150a之穿接 方向D(即平行於轴桿110之轴向）滑動。 如步驟S5所示，依照本新型一實施例之凸輪組件的組 裝方法更包含削切凸肋155之步驟。當穿設滑動凸輪150 φ 於軸桿110時，軸桿110係削切凸肋155。請參照第9圖， 其繪示滑動凸輪穿設於軸桿時之前視圖。本實施例中，嵌 孔150a側壁對應於削切前之凸肋155處具有一第一開口， 軸桿110之截面C大於此第一開口之面積。當滑動凸輪150 經由嵌孔150a穿設於轴桿110時，軸桿110係削切凸肋 155。嵌孔150a側壁對應於削切後之凸肋155處具有一第 二開口，此第二開口及轴桿110之截面C面積相等。如此 一來，凸肋155係密接於軸桿110，使得滑動凸輪150之 φ 嵌孔150a側壁不會與軸桿110之表面發生碰撞，可以避免 因碰撞而產生異音的現象。 請參照第10圖，其繪示依照本新型一實施例之具有定 位元件之滑動凸輪及固定凸輪之立體圖。於一實施例中， 固定凸輪130具有一第一定位元件137，滑動凸輪150具 有一第二定位元件157。第一定位元件137及第二定位元 件157分別位於固定凸輪130及滑動凸輪150相對接之表 面上。當固定凸輪130及支架160(支架160繪示於第3及 8圖中）同步相對於軸桿110及滑動凸輪150轉動至一預定 8 M375371 位置時，第一定位元件137及第二定位元件157係相互嵌 合，以將固定凸輪130定位於預定位置。 於一實施例中，第一定位元件137為一楔形凸塊，第 二定位元件157為一楔形凹槽，如第10圖所繪示。然於另 一實施例中，第一定位元件137為一楔形凹槽，第二定位 元件157為一楔形凸塊。此外，凡是讓第一定位元件137 及第二定位元件157可相互嵌合進而產生單段或多段定位 的設計，均可應用於本新型中。 φ 另外一方面，固定凸輪130更具有一第一止檔塊139, 其係位於固定凸輪130之外環面上。滑動凸輪150更具有 一第二止檔塊159，其係位於滑動凸輪150之外環面上。 第一止檔塊139及第二止檔塊159係用以相互止檔，以限 制固定凸輪130相對於滑動凸輪150之旋轉角度。第一止 檔塊139係與固定凸輪130 —體成型，第二止檔塊159係 與滑動凸輪150 —體成型。藉由一體成型之固定凸輪130 及滑動凸輪150來相互止檔，可以減少元件數量，並且提 φ 升兩止檔塊139及159相互止檔的可靠度。 依照本新型一實施例之凸輪組件100(凸輪組件100標 示於第8圖中）係可應用於一樞軸結構中。樞軸結構利用穿 接於軸桿110之彈片組施力於凸輪組件100，使滑動凸輪 '150緊密對接於固定凸輪130。在支架160及固定凸輪130 相對於軸桿110及滑動凸輪150轉動的過程中，滑動凸輪 150係可沿第一定位元件137凸出於固定凸輪130表面的 高度，於軸桿110上沿軸桿110的轴向滑動。由於滑動凸 輪150經由凸肋155密接於軸桿110，當樞軸結構作動時， 9 M375371 嵌孔150a的側壁不會撞擊軸桿110的表面，可以避免碰撞 而產生異音的現象。 上述依照本新型實施例之凸輪組件，當滑動凸輪穿設 於軸桿時，軸桿係削切凸輪嵌孔側壁上的凸肋，使凸肋密 接於軸桿。藉之，可避免嵌孔側壁撞擊軸桿產生異音的問 題，提升產品品質。此外，凸肋為射出成型滑動凸輪後位 於分膜線處的殘料，不需重新設計模具，可以節省成本。 雖然本新型已以實施方式揭露如上，然其並非用以限 φ 定本新型，任何熟習此技藝者，在不脫離本新型之精神和 範圍内，當可作各種之更動與潤飾，因此本新型之保護範 圍當視後附之申請專利範圍所界定者為準。 【圖式簡單說明】 為讓本新型之上述和其他目的、特徵、優點與實施例 能更明顯易懂，所附圖式之說明如下： 第1圖繪示依照本新型一實施例之一種防異音凸輪組 • 件之組裝方法的流程圖。 第2A圖繪示依照本新型一實施例之一種軸桿之立體 - 圖。 第2B圖繪示第2A圖之軸桿沿A-A'線之剖面圖。 第3圖繪示固定凸輪穿設於軸桿時之立體圖。 第4A圖繪示本新型一實施例之滑動凸輪之立體圖。 第4B圖繪示第4A圖之滑動凸輪之前視圖。 第5圖繪示本新型另一實施例之滑動凸輪之前視圖。 M375371 第6圖繪示本新型又一實施例之滑動凸輪之前視圖。 第7圖繪示本新型再一實施例之滑動凸輪之前視圖。 第8圖繪示滑動凸輪穿設於軸桿時之立體圖。 第9圖繪示滑動凸輪穿設於軸桿時之前視圖。 第10圖繪示依照本新型一實施例之具有定位元件之 滑動凸輪及固定凸輪之立體圖。_ First, as shown in step S1, a shaft is provided. Please refer to FIG. 2A and FIG. 2B simultaneously. FIG. 2A is a perspective view of a shaft according to an embodiment of the present invention, and FIG. 2B is a cross-sectional view of the shaft of FIG. 2A taken along line A-A'. The section C of the shaft 110 has a non-circular pattern. For example, the cross-section C of the shaft has a pair of planes and a pair of curved faces, as depicted in Figure 2B. Next, as shown in step S2, a fixed cam is bored on the shaft. Please refer to Fig. 3, which shows a perspective view of the fixed cam when it is placed on the shaft. The fixed 5 MJ75371 cam 130 has a through hole 130a' for being passed through the shaft u〇. In one embodiment, the perforation 130a is circular. The fixed cam 13 is rotatable relative to the shaft. Further, the fixed cam 130 is rotated in synchronization with the shaft 11〇 in synchronization with one of the brackets 160 that are disposed on the shaft 11〇. In one embodiment, the fixed cam 130 has a protrusion 138 for engaging the bracket 16 to rotate the fixed cam 13 and the bracket 160 synchronously with respect to the shaft 11 . Referring to step S3, the assembly method then performs the step of providing a sliding cam. Referring to Figures 4A and 4B, Figure 4A is a perspective view of a sliding cam of the present embodiment, and Figure 4B is a front view of the sliding cam of Figure 4A. The slide cam 150 has a drum hole 150a that is passed through the shaft 110. The insertion hole 150a and the section C of the shaft 110 have the same non-circular pattern (the section C of the shaft 110 is shown in FIG. 2B), so that the sliding cam 15〇 does not rotate relative to the shaft 110' and can only The shaft 11 () moves axially. Further, the slide cam 150 includes a rib 155 projecting from the side wall of the fitting hole 15〇a. That is, the rib 155 is disposed on the inner annular surface of the slide cam 15〇. The φ sliding cam 150 is threaded through the insertion hole 150a in a direction of penetration D to the shaft 110, which is parallel to the axial direction of the shaft 110. The rib 155 protrudes from the side wall of the fitting hole 150a in a direction straight to the direction of the penetration direction, and is disposed along the side wall of the hole 150a in this direction. Further, step S3 includes the step of forming the slide cam 150 by means of injection molding. That is, the 'sliding cam 15' is an injection molded part' which fills the material to be molded into the mold through the sprue opening of the mold, thereby forming the sliding cam 150. The injection molded sliding cam 15 has a parting line 'the rib 155 is placed along the film line of the side wall of the fitting hole i5〇a. In practical applications, after the sliding cam 150 is formed and stripped, there is a residual material located where the sliding cam 150 corresponds to the film line. The rib 155 is a residue located on the side wall of the fitting hole 150a and corresponding to the film dividing line. In this way, the rib 155 can be formed at the same time when the sliding cam 150 is formed, and the mold can be omitted, and the cost can be saved. As shown in Figs. 4A and 4B, the rib 155 is a continuous annular rib 155 which is completely annularly disposed on the side wall of the fitting hole 150a. However, the configuration of the ribs is not limited to this. For example, the rib 155 can also include a plurality of sections that are spaced apart from one another. Referring to Figure 5, there is shown a front view of a slide cam of another embodiment of the present invention. The rib 555 of the slide cam 550 includes a plurality of segments 555a. The sections 555a are spaced apart from each other on the side wall of the insertion hole 550a, and have a spacing between the adjacent two sections 555a. Further, please refer to Fig. 6, which shows a front view of a sliding cam according to still another embodiment of the present invention. The rib 655 of the sliding cam 650 includes two sections 655a disposed on opposite sides of the side wall of the fitting hole 650a. Please refer to FIG. 7 , which is a front view of the sliding cam φ according to still another embodiment of the present invention. The rib 755 of the sliding cam 750 includes a plurality of sections 755a disposed on opposite sides of the insertion hole 750a. As shown in Fig. 7, the rib 755 includes four sections 755a which are disposed on the two opposite planes. In other embodiments, in addition to the foregoing continuous annular shape, two segments, and a plurality of segment configurations, the other ribs are disposed on the sidewall of the insertion hole along a direction perpendicular to the penetration direction D, Can be applied to this new type. Next, as shown in step S4, the step of passing the slide cam 150 is performed. Please refer to Fig. 8, which shows a perspective view of the sliding cam when it is threaded on the shaft. The slide cam 150 is threaded through the shaft 110 via the through hole 150a, and the M375371 is butted against the fixed cam 130. After the slide cam 150 is passed, a cam assembly 100 of this embodiment is completed. In the cam assembly 100 in accordance with the present embodiment, the fixed cam 130 and the bracket 160 are synchronously rotated relative to the slide cam 150 and the shaft 110. The slide cam 150 is slidable on the shaft 110 in the direction of penetration D of the insertion hole 150a (i.e., parallel to the axial direction of the shaft 110). As shown in step S5, the assembling method of the cam assembly according to an embodiment of the present invention further includes the step of cutting the rib 155. When the sliding cam 150 φ is applied to the shaft 110, the shaft 110 cuts the rib 155. Please refer to FIG. 9 , which shows a front view of the sliding cam when it is inserted through the shaft. In this embodiment, the sidewall of the recess 150a has a first opening corresponding to the rib 155 before cutting, and the section C of the shaft 110 is larger than the area of the first opening. When the slide cam 150 is passed through the insertion hole 150a through the shaft 110, the shaft 110 cuts the rib 155. The sidewall of the through hole 150a has a second opening corresponding to the rib 155 after the cutting, and the second opening and the shaft 110 have the same section C area. In this way, the rib 155 is in close contact with the shaft 110, so that the side wall of the φ hole 150a of the sliding cam 150 does not collide with the surface of the shaft 110, and the occurrence of abnormal sound due to the collision can be avoided. Referring to FIG. 10, a perspective view of a sliding cam and a fixed cam having positioning members according to an embodiment of the present invention is shown. In one embodiment, the fixed cam 130 has a first positioning element 137 and the sliding cam 150 has a second positioning element 157. The first positioning element 137 and the second positioning element 157 are respectively located on the surfaces of the fixed cam 130 and the sliding cam 150 opposite to each other. When the fixed cam 130 and the bracket 160 (the bracket 160 is illustrated in FIGS. 3 and 8) are synchronously rotated relative to the shaft 110 and the slide cam 150 to a predetermined position of 8 M375371, the first positioning member 137 and the second positioning member 157 are 157. They are fitted to each other to position the fixed cam 130 at a predetermined position. In one embodiment, the first positioning element 137 is a wedge-shaped bump, and the second positioning element 157 is a wedge-shaped groove, as shown in FIG. In yet another embodiment, the first positioning element 137 is a wedge shaped groove and the second positioning element 157 is a wedge shaped bump. In addition, any design that allows the first positioning member 137 and the second positioning member 157 to be fitted to each other to produce single or multiple positioning can be applied to the present invention. φ On the other hand, the fixed cam 130 further has a first stop block 139 which is located on the outer ring surface of the fixed cam 130. The slide cam 150 further has a second stop block 159 which is located on the outer ring surface of the slide cam 150. The first stop block 139 and the second stop block 159 are used to stop each other to limit the angle of rotation of the fixed cam 130 relative to the slide cam 150. The first stop block 139 is integrally formed with the fixed cam 130, and the second stop block 159 is integrally formed with the slide cam 150. By integrally locking the fixed cam 130 and the slide cam 150 to stop each other, the number of components can be reduced, and the reliability of the two stop blocks 139 and 159 to stop each other can be improved. The cam assembly 100 (the cam assembly 100 is illustrated in Figure 8) in accordance with an embodiment of the present invention can be utilized in a pivot structure. The pivot structure applies force to the cam assembly 100 by the shrapnel group that is coupled to the shaft 110 such that the sliding cam '150 is closely abutted against the fixed cam 130. During the rotation of the bracket 160 and the fixed cam 130 relative to the shaft 110 and the sliding cam 150, the sliding cam 150 can protrude from the first positioning member 137 at a height of the surface of the fixed cam 130 along the shaft 110. The axial sliding of 110. Since the sliding cam 150 is in close contact with the shaft 110 via the rib 155, when the pivot structure is actuated, the side wall of the 9 M375371 insertion hole 150a does not hit the surface of the shaft 110, and collision can be avoided to cause abnormal sound. In the above cam assembly according to the embodiment of the present invention, when the slide cam is threaded through the shaft, the shaft cuts the rib on the side wall of the cam insert so that the rib is closely attached to the shaft. In this way, the problem that the sidewall of the through hole hits the shaft to generate abnormal sound can be avoided, and the product quality is improved. In addition, the rib is a residue located at the film line after the injection of the sliding cam, and the mold can be saved without redesigning the mold. Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various changes and retouchings without departing from the spirit and scope of the present invention. The scope of protection is subject to the definition of the scope of the patent application attached. BRIEF DESCRIPTION OF THE DRAWINGS In order to make the above and other objects, features, advantages and embodiments of the present invention more obvious, the description of the drawings is as follows: FIG. 1 is a view of an embodiment of the present invention. Flow chart of the assembly method of the abnormal sound cam group. 2A is a perspective view of a shaft according to an embodiment of the present invention. Figure 2B is a cross-sectional view of the shaft of Figure 2A taken along line A-A'. Figure 3 is a perspective view showing the fixed cam being worn on the shaft. 4A is a perspective view of a sliding cam according to an embodiment of the present invention. Fig. 4B is a front view of the sliding cam of Fig. 4A. Figure 5 is a front elevational view of a sliding cam of another embodiment of the present invention. M375371 FIG. 6 is a front view of a sliding cam according to still another embodiment of the present invention. Figure 7 is a front elevational view of the sliding cam of still another embodiment of the present invention. Figure 8 is a perspective view showing the sliding cam being worn on the shaft. Figure 9 is a front view showing the sliding cam being passed through the shaft. Figure 10 is a perspective view of a sliding cam and a fixed cam having positioning elements in accordance with an embodiment of the present invention.
【主要元件符號說明】 100 :凸輪組件 550a :嵌孔 110 :軸桿 555 :凸肋 130 :固定凸輪 555a :區段 130a :穿孔 650 :滑動凸輪 137 :第一定位元件 650a :欲孔 138 :凸起物 655 :凸肋 139 :第一止檔塊 655a :區段 150 :滑動凸輪 750 :滑動凸輪 150a :嵌孔 750a :嵌孔 155 :凸肋 755 :凸肋 157 :第二定位元件 755a :區段 159 :第二止檔塊 C :截面 550 :滑動凸輪 D:穿接方向[Main component symbol description] 100: cam assembly 550a: insertion hole 110: shaft 555: rib 130: fixed cam 555a: section 130a: perforation 650: sliding cam 137: first positioning member 650a: hole 138: convex Lifting 655: rib 139: first stop block 655a: section 150: sliding cam 750: sliding cam 150a: insert hole 750a: insert hole 155: rib 755: rib 157: second positioning element 755a: zone Section 159: Second stop block C: Section 550: Slide cam D: Feeding direction