201236631 六'發明說明 【發明所屬之技術領域】 本發明是關於一種吸塵器。 【先前技術】 現在，吸塵器在家庭等廣泛被利用。這類的吸塵器， 係具備有：吸引塵埃等的吸入具；以及與該吸入具連接， 將從前述吸入具被吸引的塵埃等吸入吸塵器內用的電動送 風機者。又，通常，在吸入具與電動送風機之間所形成的 通風路的一部分，係由筒狀的延長管所構成。 作爲這類的筒狀的延長管，樹脂製者廣泛的被利用。 可是，使用僅由樹脂構成的延長管時，延長管的重量太 重’吸塵器的使用時，會需要有過度的負擔。於此，在專 利文獻1 ’記載有以輕量化作爲目的，使碳纖維含在延長201236631 VI. Description of the Invention [Technical Field of the Invention] The present invention relates to a vacuum cleaner. [Prior Art] Vacuum cleaners are now widely used in homes and the like. The vacuum cleaner of the present invention includes an inhalation device that attracts dust and the like, and an electric blower that is connected to the inhalation device and that sucks dust or the like sucked from the inhalation device into the vacuum cleaner. Further, usually, a part of the air passage formed between the suction tool and the electric blower is constituted by a tubular extension pipe. As such a tubular extension tube, a resin manufacturer is widely used. However, when an extension tube made of only resin is used, the weight of the extension tube is too heavy. When the vacuum cleaner is used, an excessive burden is required. Here, in the patent document 1', it is described that the purpose of weight reduction is to extend the carbon fiber.
Ajfr* 管者。 [先行技術文獻] [專利文獻] [專利文獻1]日本特開平9-24003號公報 【發明內容】 [發明所欲解決之課題] 然而，前述專利文獻1記載的技術中，並沒有記載有 關碳纖維含有量的具體的範圍。因此，會因碳纖維的含有 量’使延長管的重量變的過重’或製造成本過度增加的問 -5- 201236631 題。又，碳纖維的含有量太少時，會有無法確保在延長管 一般所要求的強度的情況。亦即，僅根據專利文獻1記載 的事項，要解決該等的課題極爲困難。 本發明的目的，是提供一種具備廉價、輕量且高剛性 的延長管的吸塵器。 [解決課題用的手段] 本發明者們爲了解決前述課題，而經過專硏的檢討後 的結果找到，以預定的比例利用包含碳纖維的熱可塑性樹 脂成形構成延長管的至少一部分的構件，藉此解決前述課 題，並完成本發明。 [發明的效果] 根據本發明，可提供一種具備廉價、輕量且高剛性的 延長管的吸塵器。 【實施方式】 [實施發明用的形態] 以下，雖一面參閱適當圖面一面說明本實施發明用的 形態（本實施形態），可是本實施形態並不是限定在以下 的內容者，在不損害本發明的要旨的範圍可任意變更實 施。 〔1.吸塵器的全體構造〕 -6- 201236631 如圖1所示，吸塵器1是具備有：吸塵器本體2;軟 管部3 ;設有手邊操作開關SW等的操作管4 ;伸縮自如 地設置的延長管5;以及作爲吸入具的第2吸入具6及第 1吸入具7而構成。這之中，在本實施形態，延長管5由 外管10與內管20所構成，且由：形成外管10的外管本 體11(參閱圖2(b));以及形成內管20的內管本體 21(參閱圖2(b))是由含有（包含）碳纖維的熱可塑 性樹脂（例如聚丙烯、AB S樹脂）所成形。 吸塵器本體2的外殼是藉由上罩與下罩所覆蓋。上罩 是比上下方向的略中央更位於上側，下罩是比上下方向的 略中央更位於下側。在吸塵器本體2的內部，內建有使吸 引力產生的電動送風機2b、收容利用該電動送風機2b的 吸引力所集塵的塵埃的集塵部等，藉由操作操作管4的手 邊操作開關S W等可進行電動送風機2 b的運轉的強弱轉 換、設在第1吸入具7的未圖式的電動刷的置入切掉等。 集塵部是位在吸塵器本體2的前側（形成有連接口 2a之 側）。在上罩的前側形成有可開閉的蓋。因此，蓋可開閉 並封閉集塵部的上部。操作管4是從連接於延長管5的一 端至連接於軟管部3的另一端形成圓筒狀，再者，相對於 圓筒狀的部分，從連接於延長管5的一端側分岔形成有握 把。手邊操作開關SW被形成在握把。且在握把內配置有 手邊操作開關SW用的電裝零件。 此外’在以下的說明稱呼各部的方向時，從第1吸入 具7沿著朝向吸塵器本體2的未圖式的通風路，將接近吸 201236631 塵器本體2之側作爲一端（一端側），將與此成爲相反之 側作爲另一端（另一端側）進行說明。 軟管部3的一端是連接於吸塵器本體2的連接口 2a 而與吸塵器本體2的集塵部連通。又，軟管部3的另一端 連接在操作管4的一端。在操作管4除了前述的手邊操作 開關SW之外，在連接有延長管5的未圖式的開口部，設 有從吸塵器本體2進行供電的未圖式的供電端子。在該供 電端子連接有作爲設於延長管5的外管10的一端的導電 構件的通電端子17(參閱圖2(a))。 延長管5是如前述具備外管10與內管20，如圖2 (b)所示，在外管10的另一端部11c插入內管20的一 端部，而連結使外管10與內管20的通風路ΤΙ、T2連 通。 延長管5是如圖2 ( a ) ( b )所示爲伸縮自如，外管 1 0與內管 20之間，是以具彈性及導電性的密封構件 15d、15e (參閱圖3、圖4 ( 〇 )密封成氣密狀態。此 外，關於延長管5的詳細容後敘述。 第2吸入具6是如圖1所示，爲可裝卸地連接在延長 管5的內管20的另一端20a的吸入具，在其另一端6a可 裝卸地連接有第1吸入具7。第2吸入具6是從其另一端 6a卸下第1吸入具7，藉此可單獨作爲吸入塵埃的吸入具 發揮功能。第2吸入具6也可可裝卸地連接在延長管5的 外管1 〇與操作管4的另一端4a之間。可是，第2吸入具 6並非必須的構成。 8- 201236631 第1吸入具7是連接在第2吸入具6的另-吸入具，在下面（與清掃面相對的面）開口有未 入口。此外，第1吸入具7也可對延長管5的P 另一端20a、操作管4的另一端4a進行連接使用 在第1吸入具7設有未圖式的電動刷。電 含：掃入成爲清掃面的地面等的塵埃的旋轉清掃 動該旋轉清掃體的電動機而構成。 在本實施形態，構成從吸塵器本體2經軟管 作管4、延長管5、第2吸入具6供給對該第1 的電動機進行供電的電力。關於設於延長管5的 等的構成的詳細容後敘述。 延長管5是如前述，形成外管10的外管本彳 閱圖2(b))、與形成內管20的內管本體21( (b))是由含有碳纖維的熱可塑性樹脂所成形 作爲延長管5的主要的構成構件的外管本體11 體21，是由含有輕量且高強度的碳纖維的熱可 所形成。 又，延長管5是在內部具有對第1吸入具7 用的供電手段（後述的外管10的扁平纜線C等 9(b)))。 此外，在延長管5與第1吸入具7之間介設 入具6時，從吸塵器本體2所供給的電力，是從 經設在第2吸入具6的未圖式的導電構件對第1 進行供給。延長管5與第1吸入具7可直接電連 -端6a的 圖式的吸 3管20的 〇 動刷是包 體、與驅 部3、操 吸入具7 供電手段 濃11 (參 參閱圖2 。亦即， 與內管本 塑性樹脂 進行供電 (參閱圖 有第2吸 延長管5 吸入具7 接時，則 -9 - 201236631 第2吸入具6的導電構件不要。 外管10是如圖3所示，主要具備：圓筒狀的外管本 體11;作爲安裝在外管本體11的軀幹部11a的上部11 a2 的絕緣性的樹脂構件的下蓋體1 2 ;以及以覆蓋下蓋體1 2 的方式作爲安裝在軀幹部11a的蓋體構件的上蓋體13而 構成。外管本體11是藉由後述的射出成型或吹塑成型而 一體形成，在內側可滑動地收容內管20(參閱圖5)，並 形成與內管20連通的通風路T1。 外管本體11具有：軀幹部11a:被作成比該軀幹部 1 1 a更小徑的一端部1 1 b ;以及被作成比軀幹部丨丨a更大 徑的另一端部1 1 C。 軀幹部11a具有比一端部lib及另一端部ilc被作成 薄壁的薄壁部。在本實施形態，軀幹部丨丨a的側部丨]a】 (長方向中間部）被作成薄壁部，謀求外管本體π的輕 量化。本實施形態中，將薄壁部的厚度（外徑與內徑的 差）作成1.2mm±0.2mm，而形成比由聚丙烯100%所成形 的以往的延長管的厚度（約2mm)更薄。 此外，薄壁部不限於形成在軀幹部丨i a的側部 llal，例如，也可將軀幹部lla的其他的部分作成薄壁而 形成’又，也可將-端部1丨b、另—端部H c的部分作成 薄壁而形成。 12的 在軀幹部lla的上部n a2形成有可載置下蓋體 平坦的面S1。在上部 該平坦的面S1。在肋 1 la2突設有肋1,而從兩側夾著 11(1上蓋體13的下緣i3d可卡合， -10- 201236631 安裝上蓋體13之際，在肋lid的延設方向’將分開預定 的間隔突設的卡止部lie卡止在上蓋體13的切口部 13e，在上部lla2定位上蓋體13。 外管本體11的一端部Ub是如圖6(a)所示’被形 成略圓筒狀，且被插入被設在操作管4(參閱圖1，以下 相同）的另一端的未圖式的開口部，而可與操作管4連 接。 在一端部lib的上部外周面，如圖3所示形成有凹部 llbl。在該凹部llbl，形成被設在操作管4的未圖式的 連接用鉤的卡合。 又，在一端部lib的上方如圖2(a) ( b )，配置有 通電端子17、17(圖中僅一方圖示）。在該通電端子 17、17連接有被設在操作管4的開口部的未圖式的端 子。藉此，可從操作管4對延長管5的外管10供給電 力。 在外管本體11的另一端部11c，配設有滑動自如地 支撐內管20的支撐構件15配設。支撐構件15具備：環 狀的框部15a;被該框部15a所保持的環狀的卡合構件 15b;被配置在框部15a的一端側的密封支撐部15c;以 及密封構件15d、15e而構成。 環狀的框部15a是如圖4(a)所示，具備有；安裝 部151 ;保持部152。安裝部151具有與外管本體11的另 一端部11c的開口 llc2的內面對應的外形狀，而形成被 固定在開口 1 lc2的內面。 -11 - 201236631 在安裝部151的內面形成有讓內管20的滑 進行用的導引肋151a。 又，在安裝部151的上端部形成有插通內管 述的滑動部25及滑動蓋體28 (參閱圖5、礓 (b))的插通部151b。 保持部152是呈圓環框狀，一體形成在安裝 一端。在保持部152，卡合構件15b可朝上下方 被外嵌並被保持。在保持部152的下部，開口形 通被形成在卡合構件15b的卡合突部153a ί 152a。在保持部152的上端部形成有可插通內管 述的滑動部25(參閱圖5、圖9(a))的框狀部 卡合構件15b呈縱長圓環狀，在與環狀的框 保持部152的上下端之間具有未圖式的間隙，而 在保持部1 52。藉此’卡合構件1 5b利用該間隙 在上下方向移動。在卡合構件15b的下部形成有 保持部152的插通孔152a的卡合突部153a。該 153a具有卡合構件15b相對於保持部152朝上 推的狀態下，通過前述插通孔152a朝保持部15 突出的大小，藉由如此突出的方式，卡合突部j 可卡合在位於保持部1 5 2的內側的未圖示的內管 溝21d(參閱圖2(c)，以下相同）。 在卡合突部1 5 3 a的內側，如圖7 ( b )所示 彈簧支撐部153c’在該彈簧支撐部153c，未圖 彈簧形成縮設在與外管1〇(外管本體）的內面之 動圓滑的 :20的後 3 7(a) 部151的 向移動地 成有可插 的插通孔 20的後 1 52b ° 部15a的 形成外嵌 ，形成可 可插通到 卡合突部 方向被彈 2的內側 5 3 a形成 20的凹 ，形成有 式的螺旋 間。 -12- 201236631 又’在卡合構件15b的上端，如圖4(a)所示，形 成有朝上方向彈推卡合構件15b的板狀的彈簧部153b。 因此’卡合構件15b通常藉由該等的螺旋彈簧及彈簧部 153b朝上方向被彈推，卡合突部153a形成通過前述插通 孔1 52a朝保持部1 52的內側突出的狀態被保持。 在這類的卡合構件15b的上方，如圖3、圖7(b)所 示’在與上蓋體13的另一端部13c之間形成配設有滑動 構件I4。滑動構件14是藉由人的操作可經由上蓋體13 的開口 13f沿著外管1〇的軸向移動，藉由滑動構件14朝 向另一端側被滑動操作，端部1 4 c進入卡合構件丨5 b的上 方’反抗前述螺旋彈簧及彈簧部153b產生的彈推力形成 將卡合構件15b朝下方向壓下。亦即，藉由將滑動構件 I4朝另—端側滑動操作，使卡合在內管2〇的凹溝21d的 卡合突部153a從凹溝21d脫離’而可解除對凹溝21(1的 卡合突部l53a的卡合。藉此，解除相對於外管1〇的內管 20的固定’而形成內管20可相對於外管1〇滑動。 密封支撐部15c爲圓環狀的構件，爲了進行後述的靜 電的有效果的放電’由具導電性的材料所成形，例如由含 有金屬、碳纖維的熱可塑性樹脂所成形，在外管本體n 的另一端部11c與內面接觸而被固定。在密封支撐部i5c 的一端形成安裝有密封構件15d的凹部154,在另—端形 成安裝有密封構件15e凹部155。 密封構件15d、15e是爲了彈性、及後述的靜電有效 果的放電’由具導電性的材料形成，例如使金屬纖維、導 -13- 201236631 電性粒子等含在具彈性的材料內的材料所形成。在密封構 件15d、15e的內側插通有內管20的軀幹部21a(參閱圖 5 )。藉此，外管10與內管20的通風路ΤΙ、T2間形成 藉由密封構件15d、15e被密封。 於此，由於密封支撐部15c及密封構件15d、15e是 皆具有導電性者，所以，經由該等的密封支撐部1 5 c及密 封構件15d、15e，外管10的外管本體11與內管20的內 管本體2 1以電性導通的狀態被連接。 在本實施形態，在外管本體11與內管本體21 —方或 兩方設有：作爲具使靜電放電的功能的未圖示的放電手段 的放電構件。作爲放電構件，例如可使用一面使電暈放電 一面可放電到空氣中的靜電防止氈 '金屬纖維等，又，以 使用具放電的效果的橡膠類、EVA (乙酸乙烯酯共聚 物）等混合界面活性劑的材料形成密封構件1 5d、1 5e本 身，而形成以密封構件15d、15e進行放電。 又，設置能與吸塵器本體2側連通之具未圖示的導電 性的訊號線等，而構成使靜電在該訊號線等放電的放電方 式。 如圖3所示，下蓋體12爲具絕緣性的材料，例如由 聚丙烯等的樹脂所形成的細長的上面凹狀的構件，嵌入軀 幹部11a的上部11 a2的肋lid的內側，而被覆在被載置 在平坦的面S1的軀幹部11a。亦即，下蓋體12是被覆在 延長管5的另一端部的外周面的全周的一部分的範圍的驅 幹部1 la的上部1 la2。 -14- 201236631 在下蓋體12的凹部內的長方向略中央部安裝有構成 供電手段的扁平纜線 C的另一端部C1。 扁平纜線C具有可撓性’其一端部C2沿著凹部朝一 端側延伸之後，朝另一端側呈U字狀折返的方式被配置。 在這類的下蓋體12與上蓋體13之間（在下蓋體12 之上），如圖8(b)、圖9(a)〜（c)所示，被設在內 管20的滑蓋部25沿著下蓋體12的長方向可移動地被配 置。在滑動部25的一端部，如圖9(b) (c)所示，扁Ajfr* manager. [PRIOR ART DOCUMENT] [Patent Document 1] Japanese Unexamined Patent Publication No. Hei 9-24003. The specific range of contents. Therefore, the weight of the extension tube is too heavy due to the content of the carbon fiber, or the manufacturing cost is excessively increased. Further, when the content of the carbon fiber is too small, the strength required for the extension of the tube may not be secured. In other words, it is extremely difficult to solve such problems only in accordance with the matters described in Patent Document 1. It is an object of the present invention to provide a vacuum cleaner which is provided with an inexpensive, lightweight and highly rigid extension tube. [Means for Solving the Problem] In order to solve the above problems, the inventors have found through a special review that a member constituting at least a part of the extension tube is molded by a thermoplastic resin containing carbon fibers at a predetermined ratio. The foregoing problems are solved and the present invention has been completed. [Effect of the Invention] According to the present invention, it is possible to provide a vacuum cleaner including an extension tube which is inexpensive, lightweight, and high in rigidity. [Embodiment] [Embodiment for Carrying Out the Invention] Hereinafter, the embodiment (this embodiment) of the present invention will be described with reference to an appropriate drawing. However, the present embodiment is not limited to the following contents, and the present invention is not impaired. The scope of the gist of the invention can be arbitrarily changed and implemented. [1. Overall structure of the vacuum cleaner] -6- 201236631 As shown in Fig. 1, the vacuum cleaner 1 is provided with a vacuum cleaner main body 2, a hose portion 3, an operation tube 4 provided with a hand operated switch SW, and the like; The extension tube 5; and the second inhalation device 6 and the first inhalation device 7 as inhalation devices are configured. Among the above, in the present embodiment, the extension tube 5 is composed of the outer tube 10 and the inner tube 20, and is composed of: an outer tube body 11 forming the outer tube 10 (see FIG. 2(b)); and an inner tube 20 is formed. The inner tube body 21 (see Fig. 2(b)) is formed of a thermoplastic resin (for example, polypropylene, AB S resin) containing (including) carbon fibers. The outer casing of the cleaner body 2 is covered by an upper cover and a lower cover. The upper cover is located on the upper side than the slightly center in the up-and-down direction, and the lower cover is located on the lower side than the slightly center in the up-and-down direction. Inside the cleaner body 2, an electric blower 2b for generating an attractive force, a dust collecting portion for accommodating dust collected by the suction force of the electric blower 2b, and the like are built therein, and the switch SW is operated by operating the operation pipe 4 at the hand. For example, the strength of the operation of the electric blower 2b can be changed, and the electric brush of the unillustrated electric brush provided in the first suction tool 7 can be cut or the like. The dust collecting portion is located on the front side of the cleaner body 2 (the side on which the connection port 2a is formed). An openable and closable cover is formed on the front side of the upper cover. Therefore, the cover can open and close and close the upper portion of the dust collecting portion. The operation tube 4 is formed in a cylindrical shape from one end connected to the extension tube 5 to the other end connected to the hose portion 3, and further formed from the one end side connected to the extension tube 5 with respect to the cylindrical portion. There is a grip. The hand operation switch SW is formed on the grip. The electric component for the hand operation switch SW is disposed in the grip. In addition, when the following description refers to the direction of each part, the side of the first suction device 7 along the unillustrated air passage toward the cleaner body 2 will be close to the side of the suction machine 201236631 as one end (one end side). The opposite side will be described as the other end (the other end side). One end of the hose portion 3 is connected to the connection port 2a of the cleaner body 2 to communicate with the dust collecting portion of the cleaner body 2. Further, the other end of the hose portion 3 is connected to one end of the operation tube 4. In addition to the aforementioned hand operation switch SW, the operation tube 4 is provided with an unillustrated power supply terminal for supplying power from the cleaner body 2 to the unillustrated opening portion to which the extension tube 5 is connected. A current-carrying terminal 17 as a conductive member provided at one end of the outer tube 10 of the extension tube 5 is connected to the power supply terminal (see Fig. 2(a)). The extension pipe 5 is provided with the outer pipe 10 and the inner pipe 20 as described above. As shown in FIG. 2(b), the other end portion 11c of the outer pipe 10 is inserted into one end portion of the inner pipe 20, and the outer pipe 10 and the inner pipe 20 are coupled. The ventilation path and T2 are connected. The extension tube 5 is expandable and contractible as shown in Fig. 2 (a) (b), and between the outer tube 10 and the inner tube 20, is a resilient and electrically conductive sealing member 15d, 15e (see Figs. 3 and 4). (〇) is sealed in an airtight state. Further, the extension pipe 5 will be described later in detail. The second suction device 6 is detachably connected to the other end 20a of the inner tube 20 of the extension pipe 5 as shown in Fig. 1 . The first inhalation device 7 is detachably connected to the other end 6a of the inhalation device. The second inhalation device 6 is configured to detach the first inhalation device 7 from the other end 6a, thereby being separately usable as an inhaler for inhaling dust. The second suction device 6 is detachably connected between the outer tube 1 of the extension tube 5 and the other end 4a of the operation tube 4. However, the second suction device 6 is not essential. 8-201236631 1st inhalation The device 7 is a further suction device connected to the second suction device 6, and has a non-inlet opening in the lower surface (the surface facing the cleaning surface). Further, the first suction device 7 may be attached to the other end 20a of the extension tube 5, The other end 4a of the operation tube 4 is connected and used. The first suction tool 7 is provided with an electric brush of an unillustrated type. The electric charge: sweeps into the ground which is the cleaning surface. In the present embodiment, the first motor is supplied from the cleaner body 2 via the hose as the tube 4, the extension tube 5, and the second suction device 6 by the rotation of the dust. The electric power supplied thereto will be described in detail with respect to the configuration of the extension pipe 5. The extension pipe 5 is as described above, the outer pipe forming the outer pipe 10 is shown in Fig. 2(b)), and the inner pipe 20 is formed. The inner tube body 21 ((b)) is an outer tube body 11 body 21 which is formed of a thermoplastic resin containing carbon fibers as a main constituent member of the extension tube 5, and is made of a heat-containing material containing a lightweight and high-strength carbon fiber. form. Further, the extension pipe 5 has a power supply means for the first suction device 7 (a flat cable C or the like (9) of the outer tube 10 to be described later)). In addition, when the inlet 6 is interposed between the extension pipe 5 and the first suction tool 7, the electric power supplied from the cleaner body 2 is the first from the non-patterned conductive member provided in the second suction device 6. Supply. The extension brush 5 and the first suction device 7 can be directly electrically connected to the end 6a. The suction brush of the suction tube 3 is the package body, the drive portion 3, and the suction device 7. The power supply means 11 (see Fig. 2). That is, the power supply is supplied to the inner tube of the plastic resin (refer to the figure, the second suction extension tube 5 is connected to the suction device 7, then the conductive member of the second suction device 6 is not required for the -9 - 201236631. The outer tube 10 is as shown in Fig. 3. As shown, it mainly includes a cylindrical outer tube body 11 , a lower cover body 1 2 as an insulating resin member attached to the upper portion 11 a 2 of the trunk portion 11 a of the outer tube body 11 , and a lower cover body 1 2 The outer tube main body 11 is integrally formed by injection molding or blow molding, which will be described later, and is slidably accommodated inside the inner tube 20 (see the figure). 5), and forming a ventilation passage T1 that communicates with the inner tube 20. The outer tube body 11 has a trunk portion 11a: an end portion 1 1 b that is formed to be smaller than the trunk portion 1 1 a; and is made to be larger than the trunk portion丨丨a The other end of the larger diameter is 1 1 C. The trunk portion 11a is made larger than the one end portion lib and the other end portion ilc. In the present embodiment, the side portion 丨] a] (the intermediate portion in the longitudinal direction) of the trunk portion 丨丨a is formed as a thin portion, and the outer tube body π is lightened. In the present embodiment, The thickness (the difference between the outer diameter and the inner diameter) of the thin portion was made 1.2 mm ± 0.2 mm, and formed to be thinner than the thickness (about 2 mm) of the conventional extension tube formed by 100% of polypropylene. The portion is not limited to being formed on the side portion 11a of the trunk portion 丨ia. For example, the other portion of the trunk portion 11a may be formed into a thin wall to form 'again, and the - end portion 1b and the other end portion Hc may be formed. The portion is formed as a thin wall. The upper surface n a2 of the trunk portion 11a is formed with a surface S1 on which the lower cover body can be placed. The flat surface S1 is provided on the upper portion. The rib 1 is protruded from the rib 1 la2. 11 (1 when the lower edge i3d of the upper cover 13 is engageable, and -10-201236631 when the upper cover 13 is attached, the locking portion of the rib lid is separated by a predetermined interval) The lid portion 13 is locked to the slit portion 13e of the upper lid body 13 and the upper lid portion 13 is positioned at the upper portion 11a. The one end portion Ub of the outer tube body 11 is formed as shown in Fig. 6(a). The cylindrical shape is inserted into the unillustrated opening provided at the other end of the operation tube 4 (see Fig. 1, hereinafter the same), and can be connected to the operation tube 4. On the upper outer peripheral surface of the one end portion lib, A concave portion 11b is formed as shown in Fig. 3. In the concave portion 111b, an engagement hook of a connection type provided in the operation tube 4 is formed. Further, above the one end portion lib, as shown in Fig. 2(a)(b) The energizing terminals 17 and 17 are arranged (only one of the figures is shown). A terminal (not shown) provided in the opening of the operation tube 4 is connected to the energization terminals 17 and 17. Thereby, electric power can be supplied from the operation tube 4 to the outer tube 10 of the extension tube 5. A support member 15 that slidably supports the inner tube 20 is disposed at the other end portion 11c of the outer tube body 11. The support member 15 includes an annular frame portion 15a, an annular engagement member 15b held by the frame portion 15a, a seal support portion 15c disposed on one end side of the frame portion 15a, and sealing members 15d and 15e. Composition. The annular frame portion 15a is provided with a mounting portion 151 and a holding portion 152 as shown in Fig. 4(a). The mounting portion 151 has an outer shape corresponding to the inner surface of the opening llc2 of the other end portion 11c of the outer tube body 11, and is formed to be fixed to the inner surface of the opening 1 lc2. -11 - 201236631 A guide rib 151a for sliding the inner tube 20 is formed on the inner surface of the attachment portion 151. Further, an insertion portion 151b through which the slide portion 25 and the slide cover 28 (see Fig. 5, Fig. (b)) of the inner tube are inserted is formed at the upper end portion of the attachment portion 151. The holding portion 152 has a ring-shaped frame shape and is integrally formed at one end of the mounting. In the holding portion 152, the engaging member 15b can be externally fitted and held upward and downward. In the lower portion of the holding portion 152, an opening is formed in the engaging projection 153a ίa 152a of the engaging member 15b. A frame-shaped engaging member 15b having a sliding portion 25 (see FIGS. 5 and 9(a)) into which the inner tube can be inserted is formed in the upper end portion of the holding portion 152, and has a vertically long annular shape. A gap (not shown) is provided between the upper and lower ends of the holding portion 152, and is held at the holding portion 152. Thereby, the engaging member 15b moves in the vertical direction by the gap. An engaging projection 153a of the insertion hole 152a of the holding portion 152 is formed at a lower portion of the engaging member 15b. The 153a has a size in which the engaging member 15b is pushed upward with respect to the holding portion 152, and protrudes toward the holding portion 15 through the insertion hole 152a. By such a manner, the engaging projection j can be engaged with the engaging portion 15b. The inner tube groove 21d (not shown) inside the holding portion 152 (see FIG. 2(c), the same applies hereinafter). On the inner side of the engaging projection 1 5 3 a, as shown in Fig. 7 (b), the spring supporting portion 153c' is formed in the spring supporting portion 153c, and the spring is not formed and contracted with the outer tube 1 (outer tube body). The movement of the inner surface is smooth: the rear 3 7 (a) portion 151 of the 20 is formed to be inserted into the rear 1 52b portion 15a of the insertable insertion hole 20, forming a cocoa insertion into the engagement protrusion The direction of the portion is formed by the inner side 5 3 a of the bullet 2 to form a recess of 20, forming a spiral between the patterns. -12-201236631 Further, at the upper end of the engaging member 15b, as shown in Fig. 4(a), a plate-shaped spring portion 153b that elastically pushes the engaging member 15b upward is formed. Therefore, the engaging member 15b is normally pushed upward by the coil spring and the spring portion 153b, and the engaging projection 153a is formed to be held by the insertion hole 152a toward the inside of the holding portion 152. . Above the engaging member 15b of this type, as shown in Figs. 3 and 7(b), a sliding member I4 is formed between the other end portion 13c of the upper lid member 13. The sliding member 14 is movable in the axial direction of the outer tube 1〇 via the opening 13f of the upper cover 13 by human operation, and is slidably operated toward the other end side by the sliding member 14, and the end portion 14c enters the engaging member. The upper side of the 丨5b' resists the spring force generated by the coil spring and the spring portion 153b, and the engaging member 15b is pressed downward. In other words, by sliding the sliding member I4 toward the other end side, the engaging projection 153a of the groove 21d of the inner tube 2 is detached from the groove 21d, and the groove 21 can be released. The engagement of the engagement projections l53a, thereby releasing the fixation of the inner tube 20 with respect to the outer tube 1〇, allows the inner tube 20 to slide relative to the outer tube 1〇. The seal support portion 15c is annular. The member is formed of a conductive material for forming an effective discharge of static electricity to be described later, for example, a thermoplastic resin containing metal or carbon fiber, and the other end portion 11c of the outer tube main body n is in contact with the inner surface. A concave portion 154 to which the sealing member 15d is attached is formed at one end of the seal supporting portion i5c, and a concave portion 155 to which the sealing member 15e is attached is formed at the other end. The sealing members 15d and 15e are for the purpose of elasticity and electrostatic discharge which will be described later. It is formed of a conductive material, for example, a metal fiber, a conductive material such as a conductive material such as a conductive material, and a material contained in an elastic material. The inner body of the inner tube 20 is inserted inside the sealing members 15d and 15e. Part 21a (see Figure 5). The outer tube 10 and the air passages T and T2 of the inner tube 20 are sealed by the sealing members 15d and 15e. Here, since the seal support portion 15c and the sealing members 15d and 15e are both electrically conductive, The sealing support portion 15c and the sealing members 15d and 15e, the outer tube main body 11 of the outer tube 10 and the inner tube main body 2 1 of the inner tube 20 are electrically connected. In the present embodiment, the outer tube The main body 11 and the inner tube main body 21 are provided with a discharge member as a discharge means (not shown) having a function of electrostatic discharge. As the discharge member, for example, one side can be used to discharge a corona discharge to the air. In the middle of the static electricity prevention felt 'metal fiber, etc., the sealing members 15d and 15e themselves are formed by using a material of a mixed surfactant such as rubber or EVA (vinyl acetate copolymer) having a discharge effect. The sealing members 15d and 15e are discharged. Further, a conductive signal line (not shown) that communicates with the side of the cleaner body 2 is provided, and a discharge method for discharging static electricity on the signal line or the like is provided. ,under The body 12 is an insulating material. For example, an elongated upper concave member formed of a resin such as polypropylene is fitted inside the rib lid of the upper portion 11 a2 of the trunk portion 11a, and is covered on the flat surface. The trunk portion 11a of the surface S1, that is, the lower lid body 12 is the upper portion 1 la2 of the flooding portion 1 la covering a part of the entire circumference of the outer peripheral surface of the other end portion of the extension tube 5. -14- 201236631 The other end portion C1 of the flat cable C constituting the power supply means is attached to the center portion of the concave portion of the body 12 in the longitudinal direction. The flat cable C has flexibility, and the one end portion C2 extends toward the one end side along the concave portion. The other end side is arranged in a U-shaped foldback manner. Between the lower cover 12 and the upper cover 13 of this type (above the lower cover 12), as shown in Fig. 8(b) and Figs. 9(a) to (c), the inner tube 20 is slid. The lid portion 25 is movably disposed along the longitudinal direction of the lower lid body 12. At one end of the sliding portion 25, as shown in Fig. 9 (b) (c), flat
平纜線C的被折返的一端部C2呈電連接。據此，在延長 管5的伸縮時，如圖9(c) (d)所示，形成扁平纜線C 變形追隨相對於外管1〇的內管20的滑動移動。 在下蓋體12的一端12b設有端子台16，在該端子台 16形成安裝有金屬製的通電端子17。通電端子17是如圖 3中以一點鎖線模式所示，經導電線W1與扁平纜線C的 另一端部C1呈電連接。 亦即，通電端子1 7是經由絕緣性的下蓋體1 2被支撐 在外管本體11，而被配置成不會有與外管本體11電導通 的狀態。 上蓋體1 3是由具絕緣性的材料，例如由聚丙烯等所 形成。上蓋體13是將下緣13d嵌合在被設在外管本體11 的上部11 a2的肋lid’而與外管本體11的上部11 a2呈 一體的安裝，且與下蓋體1 2之間形成被絕緣的空間。在 該被絕緣的空間，形成收容有構成供電手段的扁平纜線 C、與可在下蓋體12上移動地被配置的滑動部25。 -15- 201236631 在本實施形態，藉由超音波熔接所爲的固接手法上蓋 體13被固接在外管本體11。此外，上蓋體13的固接也 可使用其他的熔接、接著材等進行，也可使用螺絲等的緊 固構件進行。 此外，對於外管本體11的下蓋體12的固定，也可藉 由在外管本體11固接上蓋體13所爲的上蓋體13按壓來 進行，也可將下蓋體12直接固定在外管本體11。下蓋體 12的固定也可藉由超音波熔接進行，又，也可使用其他 的熔接、接著材等、或螺絲等的緊固構件來進行。 內管20是如圖5所示，主要具備有：圓筒狀的內管 本體2 1 ;作爲絕緣性的樹脂構件的基座構件22 ;以及蓋 體構件23而構成。 內管本體21是藉由射出成形或吹塑成型一體形成， 在內側形成有與外管10的通風路Tl(參閱圖3)連通的 通風路Τ2。 內管本體2 1具有：軀幹部2 1 a、以及做成比該軀幹 部2 1 a更大徑的另一端部2 1 c。 在軀幹部21a的上面設有：支撐被設在基座構件22 的滑動部25用的支柱21al。在軀幹部21a的一端部21a2 安裝有圓筒狀的滑動構件26。該摺動構件26被安裝在軀 幹部21a的一端部21 a2，有助於外管1〇與內管20之間 的圓滑的滑動。 在另一端部21c可安裝第2吸入具6、第1吸入具 7，在另一端部21c的上部21cl形成載置並安裝有基座構 -16- 201236631 件22。 基座構件22是由具絕緣性的材料，例如由聚丙烯等 所形成’並被覆在內管本體21的另一端部21c的上部 21cl。亦即，基座構件22是在內管本體21的另一端部 21c’被覆在外周面的全周的一部分的範圍的另一端部 21c的上部21cl。 在基座構件22的上面形成有搖動支撐部22a及通電 端子支撐部22b。 又，在基座構件22的一端部一體設有沿著內管本體 21的軀幹部21a，朝向一端部沿設的細長板狀的滑動部 25 ° 在搖動支撐部22a，操作按鈕24可搖動地被支撐。 操作按鈕24是進行第2吸入具6、第1吸入具7的安裝 卸下用的按鈕，在另一端下部具有卡止用的鉤部24a。該 鉤部24 a從設置在基座構件22的未圖示的孔部通過被形 成在另一端部21c的上部21cl的開口 21 c2，可在另一端 部2 1 c的內空出沒。 這樣的操作按鈕24，是藉由未圖示的彈簧構件，將 鉤部24a彈推成可在另一端部21c的內空突出的狀態。藉 此，從另一端部21c的內空插入第2吸入具6、第丨吸入 具7的安裝部時，鉤部24a卡合在第2吸入具6、第1吸 入具7的未圖示的卡止部，而形成在延長管5的內管2〇 固定有第2吸入具6、第1吸入具7。此外，卸下之際， 按壓操作操作按鈕24的按鈕部2“，解除鉤部24a的卡 -17- 201236631 止。 在基座構件22的通電端子支撐部22b安裝有金屬 的通電端子27。又’在滑動部25的—端部，如圖9(t (c)所示’連接有扁平纜線C的一端部C2(參閱圖 (b) (c)) ’該扁平纜線（：的—端部c2與通電端子 之間，由未圖示的導電線呈電連接。 蓋體構件2 3是由具絕緣性的材料，例如由聚丙烯 所形成。蓋體構件23是如圖5所示，將下緣23c' 23c 合在被設在內管本體21的另一端部21c的上部21cl的 部21c3、21c3的方式，一體安裝在另一端部21c，在 基座構件22之間形成被絕緣的空間。 在本實施形態，藉由超音波熔接所爲的固接手法， 蓋體構件23固接在內管本體21的另一端部21c。此外 蓋體構件23的固接，也可使用其他的熔接、接著材等 行，也可使用螺絲等的緊固構件進行。 又，對於內管本體21的基座構件22的固定，也可 由在內管本體2 1固定蓋體構件2 3所爲的蓋體構件2 3 按壓來進行，也可將基座構件22直接固定在內管本 21。基座構件22的固定也可藉由超音波熔接進行，又 也可使用其他的熔接、接著材等，或使用螺絲等的緊固 件進行。 在蓋體構件23的另一端一體形成有被安裝在基座 件22的滑動部25的滑動蓋體28 »滑動蓋體28在與滑 部2 5之間形成收容未圖示的導電線的空間。 製 丨） 9 27 等 卡 溝 與 將 進 藉 的 體 » 構 稱 動 -18· 201236631 又，在蓋體構件23的上面形成插通配置有操作按鈕 24的按鈕部2 4b的開口部23a° 這類的滑動部25及滑動蓋體28形成一體’且如圖8 (a)所示，通過被固定在外管10的另一端部nc的支撑 構件15的插通部151b’被插入與外管本體11絕緣的下 蓋體1 2和上蓋體1 3之間。 而且，如前述經由被配置在滑動部25上的未圖示的 導電線，扁平纜線C的一端部C2 (參閱圖9 ( b ))與通 電端子27(參閱圖5)之間呈電性連接。藉此’被設在外 管10的一端部的通電端子17、17(參閱圖3)與通電端 子27(參閱圖5)之間，在由外管本體11及內管本體21 的被絕緣的狀態下形成電連接。 以下，說明由前述構成所獲得的效果。 (1) 由於延長管5的外管本體11及內管本體21由含有 碳纖維的熱可塑性樹脂所構成，所以作爲延長管5全體可 謀求輕量化並確保剛性。以含有碳纖維的熱可塑性樹脂形 成操作管4的全部或一部（例如，除了握把以外的圓筒狀 的部分），亦可謀求操作管4的輕量並確保剛性。再者， 以含有碳纖維的熱可塑性樹脂成形吸塵器本體2的一部分 (例如，下罩），亦可謀求吸塵器本體2的輕量化並確保 剛性。 (2) 由於作爲被配置在延長管5的導電構件的通電端子 I7、17及通電端子27、27，在絕緣性的樹脂的下蓋體12 上、基座構件22上，與延長管5的外管本體11及內管本 -19- 201236631 體21絕緣被配置，所以延長管5與通電端子17、17不會 有電導通的情形，且，延長管5與通電端子27也不會有 電導通的情形。 因此，由於延長管5的外管本體11及內管本體21不 具有由具導電性的材料所形成的構造，所以可確保與導電 構件適當的絕緣性。 (3) 由於從外管本體11對通電端子17、17絕緣的下蓋 體12、及從內管本體21對通電端子27絕緣的基座構件 22，是被安裝在作爲被設置的部分的外管本體11、內管 本體21的外周面的全周的一部份的範圍’所以與該等被 安裝在外周面的全周的構造相比’可縮小安裝面積’且這 樣子可謀求輕量、小型化。 (4) 作爲連接在通電端子17、17的供電手段的導電線 W 1、及連接在導電線W1的扁平纜線C ’是分別配設在絕 緣性的樹脂的下蓋體12上’所以可確保與作爲導電性的 構件的外管本體1 1的適當的絕緣性，並可實現對第1吸 入具7適當的供電。 (5) 扁平纜線C在下蓋體12與上蓋體13之間’由於被 配置在由外管本體Π被絕緣的空間內’所以可維持良好 的絕緣性。因此，因長期間的使用’假設即使發生扁平纜 線C的被覆剝落這類的事態’也可確實阻止扁平纜線C 與人的手接觸或與外管本體11直接接觸的情況。 (6) 藉由超音波熔接所爲的固接手法’將上蓋體13固接 在外管本體Π，又，由於蓋體構件23被固定在內管本體 -20- 201236631 21，所以上蓋體13、蓋體構件23的固定簡單，可實現高 強度的固接。又’熔接處的完成度良好，製品價値也提 昇。 (7) 由於外管本體11與內管本體21之間，由具彈性及 導電性的密封構件1 5d、1 5e被密封，所以將外管本體i 1 與內管本體21作爲具導電性的一個構件，例如可藉由設 在外管本體11的一個放電手段，使該等所帶電的靜電適 當予以放電。藉此’可謀求生產性的提昇、成本的減低。 此外，即使以鋁合金等的金屬材料形成外管本體11 與內管本體21時’藉由以密封構件15d、15e密封該等之 間，可例如藉由設在外管本體11的一個放電手段使該等 所帶電的靜電適當予以放電。 (8) 設置與吸塵器本體2側連通的未圖示的訊號線等， 而構成使延長管5的靜電在該訊號線等進行放電者，是可 利用既有的訊號線等適當進行靜電放電，可謀求成本減 低。 又，也可以具導電性成形第1吸入具7、第2吸入具 6，例如以含有碳纖維的熱可塑性樹脂成形，而構成與清 掃面接觸的部分到與延長管5接觸的部分是具有導電性。 此時，可通過第1吸入具7、第2吸入具6適當將成爲清 掃面的電予以放電。 此外，以含有碳纖維的熱可塑性樹脂成形操作管4的 全部或一部分（例如除了握把以外的圓筒狀的部分），亦 可從延長管5的外管1 0經由操作管4 ’再者在清掃時經 -21 - 201236631 由握住該操作管4的人’將延長管5帶電的靜電放電到地 面等。 (9)由射出成形的方式成形延長管5的外管本體Π及內 管本體21時，與由金屬製的構件形成延長管5時相比’ 形成簡單，且複雜的形狀等也可一體形成’生產性優° 又，由於藉由射出成形可使外管本體11及內管本體 2 1的內面平滑化，所以可抑制因塵埃的衝突所產生的靜 電。 此外，各部的形狀等可任意設定，下蓋體12、上蓋 體13的周向的大小；基座構件22、蓋體構件23的周向 的大小等，若是可被安裝在外周面的全周一部分的範圍 者，便可任意設定。 又，在前述實施形態，'延長管5雖是以連結外管1〇 與內管20者作爲例示，可是並不限於此，也可由一個管 體所構成。 〔2.延長管〕 接著，針對成形構成吸塵器1所具備的延長管5的外 管本體11及內管本體21的材料進行說明。如前述，構成 延長管5的外管本體11與內管本體21是由以預定比例含 有碳纖維的熱可塑性樹脂（以下，稱爲適當「碳纖維含有 樹脂」。）構成。以下’針對該碳纖維含有樹脂進行說 明。 -22- 201236631 (碳纖維） 碳纖維含有樹脂所含有的碳纖維，是以高溫碳化纖維 狀之例如聚丙烯腈（PAN )樹脂、瀝青等的方式所獲得者 (短纖維），通常其90%以上由碳素所構成。這類的碳纖 維的具體的種類並沒有特別的限定，也可依據後述的碳纖 維的物性以任意的條件進行製造，又，也可使用市售品。 製造碳纖維時，其製造條件、原料等並沒特別限制，只要 適用周知的任意的製造條件及原料進行製造即可。又，碳 纖維並不一定要單獨使用1種，也可使用以任意的比率及 組合任意兩種以上。 碳纖維含有樹脂所含有的碳纖維的長度雖沒有特別限 制，但理想在1 mm以下。是用這樣的長度的碳纖維，由 於可更容易準備在外管本體11及內管本體21所含有的碳 纖維，所以可削減延長管5的製造成本。又，將這樣的長 度的碳纖維含有在外管本體11及內管本體21的方式，藉 此在構成外管本體11及內管本體21的碳纖維含有樹脂 中，碳纖維彼此適當交絡，其結果，可達成良好的剛性。 碳纖維含有樹脂所含有的碳纖維的量，碳纖維含有樹 脂中爲5質量％以上、1 5質量％以下、理想爲1 〇質量％以 下。碳纖維的含有量包含在此範圍，藉此抑制延長管5的 製造成本，並且可使延長管5的輕量化及高剛性化均衡佳 地提昇。且還具有可容易將前述的上蓋體13(參閱圖3) 及蓋體構件23(參閱圖5)分別超音波熔接在外管本體 1 1及內管本體21的利點。關於這點，一面參閱圖1 〇 一 -23- 201236631 面詳細說明。 圖ίο爲經由本發明者們的檢討所獲得的圖表’且是 以板狀的碳纖維含有樹脂的彎曲強度的關係槪念性的表示 使碳纖維的含有量變化時的板狀的碳纖維含有樹脂的厚度 (與形成延長管之際的外徑與內徑的長度的差對應。）及 該厚度的圖表。圖10中，各圖表附近的記載爲碳纖維 (CF)的含有量（質量％) ， 「PP」表示作爲不含碳纖維 的熱可塑性樹脂的聚丙烯（CF含有量0質量％ )。 又，縱軸的「86MPa」表示以往的吸塵器所使用的厚 度 2mm的聚丙烯的彎曲強度。亦即，在由以往的厚度 2 mm的聚丙烯構成的延長管，將該延長管以板狀成形之 際的板狀聚丙烯的彎曲強度爲86 MPa。因此，若板狀樹脂 的彎曲強度在86MPa以上，則使用該板狀樹脂可成形具 有與以往至少同等以上的強度（剛性）的延長管。 再者，橫軸的「〇.9mm」爲射出成形或吹塑成型可能 的小限度的厚度。因此，使用板狀樹脂進行射出成形或吹 塑成型成形延長管時，使用板狀樹脂成形延長管的厚度最 低也要形成〇.9mm是極爲重要》 如圖1〇所示’具有相同厚度時，碳纖維含有樹脂中 的碳纖維含有量愈是增加，碳纖維含有樹脂的強度（必要 強度）增加。然而，碳纖維通常爲高價者，使碳纖維的含 有量增加的話，則碳纖維含有樹脂中的製造成本增加（價 格上昇）。再者，若使延長管的厚度增加，則其量也會使 延長管的質量也上昇（質量上昇）。又，根據本發明者們 -24- 201236631 的檢討’聚丙嫌的比重爲〇.92g/cm3，而例如以ι〇質量％ 的比例含有碳纖維的聚丙烯的比重爲〇.95g/cm3。因此， 由於含有碳纖維的聚丙烯的比重比不含碳纖維的聚丙烯更 大，所以只有使碳纖維的含有量增加時，即使同樣的厚度 重量也增加。 亦即’爲了使延長管5(更具體而言，外管本體11 及內管本體21)的剛性提昇，即使只有使碳纖維的含有 量增加’也無法廉價製造延長管5，且重量也會增加。而 且，重量過度變的太重時，使延長管5的厚度減少時，後 述的成形會變的困難，且會變成無法確保延長管5通常所 要求的剛性。又’即使爲了維持同樣厚度，並廉價地製造 延長管5’而將碳纖維的含有量減少時，也無法確保延長 管5通常所要求的強度。再者，爲了確保這樣的剛性，而 增加延長管5的厚度時，則延長管5的重量會有變重的可 能性（質量增加）。 圖1〇所示的圖表，是有鑑於前述課題，本發明者們 檢討所獲得者。亦即，完全兼具製造之際的製造成本的削 減（廉價化）；通常所要求的強度的確保；以及輕量化的 延長管5，是經由本發明者們的銳意檢討所想到者。亦 即，例如在包含聚丙烯與1 0質量％的比例的碳纖維的碳 纖維含有樹脂，要維持與構成以往的延長管的樹脂強度 (板狀的樹脂強度爲86MPa)同程度的強度時，當厚度超 過約2mm時會比構成以往的延長管的樹脂更重。 因此，將碳纖維的含有比例設在5質量％以上1 5質 -25- 201236631 量％以下時，不僅可成爲與構成以往的延長管的樹脂同程 度的強度，且可將厚度作的比以往（約2mm)更薄，而 且可將延長管做成比以往更爲輕量者。尤其，由於延長管 爲筒狀，所以與構成吸塵器的其他的構件相比容易破損， 總之輕量（亦即厚度薄）而且具高剛性是具有優秀的效 果。將具有這類的碳纖維含有量的碳含有樹脂適用於延長 管，藉此可製造外管本體11及內管本體21的長方向中間 部，各自的外徑與內徑的差設在1mm以上1 .4mm以下， 又，在長方向全域，將該差設在所謂2mm以下，比以往 更且輕量，而且高剛性的延長管。 又，依據由以5質量％以上1 5質量％以下的比例含有 碳纖維的碳纖維含有樹脂構成的延長管5，可藉由超音波 熔接更確實固定前述的上蓋體13及蓋體構件23。更具體 而言，碳纖維的含有量愈是增加，則通常進行超音波熔接 會有變困難的傾向。然而，根據以前述比率含有碳纖維的 延長管5，可維持前述的廉價、輕量、高剛性，且也可達 到更確實進行上蓋體13及蓋體構件23的固定。再者，藉 由將碳纖維以前述的比率含有在熱可塑性樹脂時，也具有 特別容易藉由後述的射出成形或吹塑成型成形延長管的利 點。 (熱可塑性樹脂） 延長管5是由包含前述碳纖維的熱可塑性樹脂所構 成。前述的碳纖維的說明中，作爲熱可塑性樹脂雖舉聚丙 -26- 201236631 烯爲具體例，可是延長管5所含有的熱可塑性樹脂並不限 於聚丙烯。亦即，作爲形成延長管5的熱可塑性樹脂，可 使用周知的任意的熱可塑性樹脂（例如如前述使用 ABS (Acrylonitrile-Butadiene-Styrene)樹脂等），其物性也 只要具備作爲延長管的功能可以隨意。可是，作爲形成延 長管5的熱可塑性樹脂爲輕量及廉價，且由所爲製造及使 用容易的觀點，如以前述具體例所舉，使用聚丙烯爲理 想。又，熱可塑性樹脂沒必要一定要單獨使用1種，亦可 以任意的比率及組合兩種以上。 又，在延長管5亦可含有前述的碳纖維及熱可塑性樹 脂以外的任意的成分。 接著，針對構成延長管5的由碳纖維含有樹脂構成的 外管本體11及內管本體21的製造方法進行說明。在本實 施形態，外管本體11及內管本體21，是分別將碳纖維含 有樹脂進行射出成形或吹塑成型所成形。以下，分成進行 射出成形時、與進行吹塑成型時的兩種成型，說明外管本 體11及內管本體12的製造方法。可是，外管本體11與 內管本體21爲形狀稍有不同，而基本上由於可以同樣進 行製造，所以在以下係以內管本體21的製造方法爲例進 行說明。又，爲了圖示的簡略化，將圖11及圖12的內管 本體21的形狀作成單純的筒形狀者。 (進行射出成形時） 使用碳纖維含有樹脂進行射出成形時，對其具體的方 -27- 201236631 法並無特別限制。以下，雖具體說明射出成形的 是射出成形的方法並不限於以下的內容。例如， 所示’將可成形筒形狀的外形（亦即圓柱形狀的 金屬模（上模具100及下模具101):以及可成 狀的內徑的芯子102予以組合而形成一體者。然 該等予以組合之際產生的隙間，通過貫穿與芯子 一體所形成的凸緣102a的貫穿孔l〇2b，射出被 融的碳纖維含有樹脂（亦即擠出）。之後冷卻、 屬模100、101及芯子102，並依需要切斷毛邊 管本體21 i 射出熔融後的碳纖維含有樹脂之際的金屬 101及芯子102的溫度雖爲任意，可是在碳纖維 的融點以下的溫度時，碳纖維含有樹脂會固化， 成比該融點溫度更高的溫度。又，射出之際的射 由於會因碳纖維含有樹脂的溫度、.組成而有所不 無法一槪而論，可是例如可設爲200MPa左右。 爲進行射出成形之際的具體的裝置，例如可使用 2010-131966號公報、日本特開 2006-110905號 載的射出成型機。 藉由射出成形的方式成形內管本體21，藉 內管本體21的外形狀之外，也可精確佳地構成 並可將內管本體21的內壁作成平滑者。因此， 塵器使用時的內管本體21內部流通之際，可減 內部抵抗，可更進一步提昇具備吸塵器的電動送 方法，可 如圖11 外観）的 形圓筒形 後，在將 102形成 加熱而熔 及卸下金 ，形成內 模 100、 含有樹脂 所以設定 出荷重， 同，所以 此外，作 曰本特開 公報等記 此，除了 內形狀， 空氣在吸 少空氣的 風機的運 -28- 201236631 轉效率。又，可抑制因內壁的凹凸造成空氣的亂流，並可 更進一步抑制伴隨亂流的噪音。再者，由於可以一次的工 程一體成型延長管的整體，所以可謀求製造工程的簡化。 (進行吹塑成型時） 使用碳纖維含有樹脂進行吹塑成型時，對其具體的方 法並無特別限制。以下，雖一面參照圖1 2，一面具體說 明吹塑成型的方法，可是吹塑成型的方法並不受限於以下 的內容。 例如將可成形圖1 2所示的筒形狀的外形的金屬模 2 00、201予以組合，在該等的金屬模200、201的內部擠 出由碳纖維含有樹脂形成的型坯202。之後，對型坯202 內部噴入高壓空氣，將型坯202推擠到金屬模200、201 內表面。然後，藉由冷卻金屬模200、201使型坯202固 化，卸下金屬模200、201之後，依需要切斷毛邊，可形 成內管本體2 1。 構成型坯201的碳纖維含有樹脂的溫度、將型坯201 擠出到金屬模200、201內表面之際的荷重、高壓空氣的 具體的壓力等並沒有特別限制，只要適用周知的任意的吹 塑成型法便可。此外，作爲進行吹塑成型之際的具體的裝 置，可使用例如在日本特開平11-277617號公報等作記載 的吹塑成型機。 藉由吹塑成形的方式成形內管本體21，藉此，由於 不使用芯子可成形內管本體21，所以可謀求芯子的拔出 -29- 201236631 等的製造工程的簡化。又’由於可以—次的工程成形內管 本體21的整體，所以由此觀點，亦可謀求製造工程的簡 化。 如前述，外管本體11及內管本體21可廉價地製造， 而且輕量且高剛性。亦即，關於在吸塵器通常作爲附屬品 附帶的延長管5，也可謀求性能的提昇，並且可提供提昇 了作爲吸塵器整體的性能的吸塵器。 又，如前述，即使使用碳纖維含有樹脂，也可容易進 行射出成形或吹塑成型。因此，具有所謂延長管5(更具 體而言，外管本體Π及內管本體21)的成形容易的利 點。又，藉由超音波熔接，對於包含碳纖維的熱可塑性樹 脂也可容易堅固地固定上蓋體13及蓋體構件23。 此外，吸塵器1中，在外管本體11及內管本體21雖 適用碳纖維含有樹脂，可是這類的碳纖維含有樹脂除了可 適用於外管本體11及內管本體21之外，也例如適用於構 成車輪等的吸塵器1的各構件。再者，如前述，在構成操 作管4的至少一部分（亦即，全部或一部分）的構件、構 成吸塵器本體2的至少一部分（亦即，全部或一部分）的 構件也適用碳纖維含有樹脂。 【圖式簡單說明】 [圖1]表示本發明的一實施形態的吸塵器的全體的外 觀立體圖。 [圖2 ] ( a )爲縮短延長管的狀態的側視圖，（b )爲 -30- 201236631 伸長延長管的狀態的側視圖’ （c )爲伸長延長管的狀態 的下面圖。 [圖3]爲延長管的外管的分解立體圖。 [圖4]表示具備外管的支撐構件的圖，（a)爲分解立 體圖、（b )爲立體圖。 [圖5]爲延長管的內管的分解立體圖。 [圖6] (a)是從一端側觀看延長管的圖，（b)是從 另一端觀看延長管的圖。 [圖7] ( a )爲延長管的縱端面圖，（b)爲延長管的 另一端部的放大縱端面圖" [圖8] (a)爲收縮後的狀態的延長管的立體圖， (b)爲部分透視上蓋體及蓋體構件的延長管的立體圖。 [圖9] (a)表示下蓋體與滑動部的配置關係的立體 圖’ （b)表示收縮後的延長管的狀態的扁平纜線的俯視 圖’ （c )爲相同的側視圖，（d )表示伸長後的延長管的 狀態的扁平纜線的部分側視圖。 [圖10]以槪念性表示使碳纖維的含有量改變時的厚度 及彎曲強度的關係的圖表。 [圖11]以模式表示藉由射出成形製造延長管之際的樣 子的圖。 [圖12]以模式表示藉由吹塑成型製造延長管之際的樣 子的圖。 【主要元件符號說明】 -31 - 201236631 1 :吸塵器 2 :吸塵器本體 2b :電動送風機 5 :延長管 6:第2吸入具（吸入具） 7 :第1吸入具（吸入具） 1 0 :外管 1 1 :外管本體 1 2 :下蓋體（絕緣性的樹脂構件） 17:通電端子（導電構件） 13:上蓋體（蓋體構件） 15 :支撐構件 1 5 d ' 1 5 e :密封構件 17、27 :通電端子 20 :內管 21 :內管本體 22 :基座構件（絕緣性的樹脂構件） 23 :蓋體構件 C :扁平纜線（供電手段） T1 :通風路 T2 :通風路 W1 :導電線（供電手段） -32-The folded end portion C2 of the flat cable C is electrically connected. As a result, when the extension tube 5 is expanded and contracted, as shown in Figs. 9(c) and (d), the flat cable C is deformed to follow the sliding movement of the inner tube 20 with respect to the outer tube 1〇. A terminal block 16 is provided at one end 12b of the lower cover body 12, and a metal-made power supply terminal 17 is formed on the terminal block 16. The energizing terminal 17 is electrically connected to the other end portion C1 of the flat cable C via the conductive wire W1 as shown by the one-point lock line mode in Fig. 3 . In other words, the energization terminal 17 is supported by the outer tube body 11 via the insulating lower cover body 1 2, and is disposed so as not to be electrically connected to the outer tube body 11. The upper cover 13 is made of an insulating material such as polypropylene or the like. The upper cover 13 is fitted to the upper portion 11 a2 of the outer tube body 11 by fitting the lower edge 13d to the rib lid' provided on the upper portion 11 a2 of the outer tube body 11, and is formed between the lower cover body 12 and the lower cover body 1 2 . Insulated space. In the insulated space, a flat cable C accommodating a power supply means and a sliding portion 25 which is disposed to be movable on the lower cover 12 are formed. -15-201236631 In the present embodiment, the upper cover 13 is fixed to the outer tube main body 11 by means of ultrasonic welding. Further, the upper lid body 13 may be fixed by other welding, joining materials, or the like, or may be formed using a fastening member such as a screw. Further, the fixing of the lower cover 12 of the outer tube body 11 may be performed by pressing the upper lid body 13 to which the outer lid body 11 is fixed, or the lower lid body 12 may be directly fixed to the outer tube body. 11. The fixing of the lower cover 12 may be performed by ultrasonic welding, or may be performed by using other fastening members such as welding, bonding materials, or screws. As shown in Fig. 5, the inner tube 20 is mainly provided with a cylindrical inner tube main body 2 1 , a base member 22 as an insulating resin member, and a lid member 23 . The inner tube body 21 is integrally formed by injection molding or blow molding, and a ventilation passage 2 communicating with the air passage T1 (see Fig. 3) of the outer tube 10 is formed inside. The inner tube body 2 1 has a trunk portion 2 1 a and another end portion 2 1 c which is larger than the trunk portion 2 1 a. A support 21a1 for supporting the sliding portion 25 provided on the base member 22 is provided on the upper surface of the trunk portion 21a. A cylindrical sliding member 26 is attached to one end portion 21a2 of the trunk portion 21a. The folding member 26 is attached to one end portion 21a2 of the trunk member 21a to facilitate smooth sliding between the outer tube 1'' and the inner tube 20. The second suction tool 6 and the first suction tool 7 are attached to the other end portion 21c, and the base member 16-201236631 member 22 is placed and mounted on the upper portion 21cl of the other end portion 21c. The base member 22 is formed of an insulating material such as polypropylene or the like and covers the upper portion 21cl of the other end portion 21c of the inner tube body 21. In other words, the base member 22 is an upper portion 21cl of the other end portion 21c of the range in which the other end portion 21c' of the inner tube body 21 is covered over a part of the entire circumference of the outer peripheral surface. A rocking support portion 22a and a power receiving terminal support portion 22b are formed on the upper surface of the base member 22. Further, the trunk portion 21a along the inner tube main body 21 is integrally provided at one end portion of the base member 22, and the elongated plate-shaped sliding portion 25° which is provided toward the one end portion is rocked on the support portion 22a, and the operation button 24 is rockable. Be supported. The operation button 24 is a button for attaching and detaching the second suction tool 6 and the first suction tool 7, and has a hook portion 24a for locking at the lower end of the other end. The hook portion 24a passes through the opening 21c2 formed in the upper portion 21c1 of the other end portion 21c from a hole portion (not shown) provided in the base member 22, and can be ejected in the inner end of the other end portion 2 1 c. Such an operation button 24 is a state in which the hook portion 24a is springly pushed to protrude in the inner space of the other end portion 21c by a spring member (not shown). When the second suction device 6 and the attachment portion of the second suction device 7 are inserted from the inner space of the other end portion 21c, the hook portion 24a is engaged with the second suction device 6 and the first suction device 7 (not shown). The second suction device 6 and the first suction device 7 are fixed to the inner tube 2 of the extension tube 5 by the locking portion. Further, when the detachment is performed, the button portion 2 of the operation button 24 is pressed, and the card -17-201236631 of the hook portion 24a is released. The metal-powered terminal 27 is attached to the energization terminal support portion 22b of the base member 22. 'At the end of the sliding portion 25, as shown in Fig. 9 (t (c), the end portion C2 of the flat cable C is connected (see Fig. (b) (c)) 'The flat cable (: - The end portion c2 and the energization terminal are electrically connected by a conductive wire (not shown). The cover member 23 is made of an insulating material such as polypropylene, and the cover member 23 is as shown in FIG. The lower edge 23c' 23c is integrally attached to the other end portion 21c so as to be insulated from the portions 21c3 and 21c3 of the upper portion 21c of the other end portion 21c of the inner tube body 21, and is insulated between the base members 22. In the present embodiment, the lid member 23 is fixed to the other end portion 21c of the inner tube main body 21 by means of a fastening method by ultrasonic welding. Further, other fixing of the lid member 23 may be used. The welding, the joining material, and the like may be performed using a fastening member such as a screw. Further, the base of the inner tube body 21 The fixing of the member 22 may be performed by pressing the lid member 2 3 to which the lid member 2 3 is fixed to the inner tube body 21, or the base member 22 may be directly fixed to the inner tube 21. The base member 22 The fixing may be performed by ultrasonic welding, or other welding, bonding, or the like, or using a fastener such as a screw. The other end of the cover member 23 is integrally formed to be mounted on the base member 22 The sliding cover 28 of the sliding portion 25 » The sliding cover 28 forms a space for accommodating a conductive wire (not shown) between the sliding portion 25 and the sliding portion 25. The shackle and the body to be borrowed are organized. Act-18 - 201236631 Further, an opening portion 23a into which the button portion 24b of the operation button 24 is placed is formed on the upper surface of the lid member 23, and the sliding portion 25 and the sliding cover 28 are integrally formed as shown in FIG. (a), the insertion portion 151b' of the support member 15 fixed to the other end portion nc of the outer tube 10 is inserted between the lower cover body 1 2 and the upper cover body 13 insulated from the outer tube body 11. a flat cable via a conductive wire (not shown) disposed on the sliding portion 25 as described above One end portion C2 of C (see Fig. 9 (b)) is electrically connected to the energizing terminal 27 (see Fig. 5), whereby the energizing terminals 17, 17 provided at one end portion of the outer tube 10 (see Fig. 3) The electrical connection is made between the outer tube main body 11 and the inner tube main body 21 in an insulated state from the energization terminal 27 (see Fig. 5). The effects obtained by the above configuration will be described below. Since the outer tube main body 11 and the inner tube main body 21 of the tube 5 are made of a thermoplastic resin containing carbon fibers, the entire length of the extension tube 5 can be reduced in weight and rigidity can be secured. By forming all or a part of the operation tube 4 (for example, a cylindrical portion other than the grip) with a thermoplastic resin containing carbon fibers, it is also possible to reduce the weight of the operation tube 4 and ensure rigidity. Further, by forming a part (e.g., a lower cover) of the cleaner body 2 with a thermoplastic resin containing carbon fibers, it is possible to reduce the weight of the cleaner body 2 and ensure rigidity. (2) The energizing terminals I7 and 17 and the energizing terminals 27 and 27 which are disposed on the conductive member of the extension tube 5 are on the lower cover 12 of the insulating resin, the base member 22, and the extension tube 5 The outer tube body 11 and the inner tube body -19-201236631 body 21 insulation is disposed, so that the extension tube 5 and the energization terminals 17 and 17 are not electrically connected, and the extension tube 5 and the energization terminal 27 do not have conductance. The situation of the pass. Therefore, since the outer tube body 11 and the inner tube body 21 of the extension tube 5 do not have a structure formed of a material having conductivity, proper insulation with the conductive member can be ensured. (3) The lower cover 12 that insulates the energization terminals 17 and 17 from the outer tube main body 11 and the base member 22 that insulates the energization terminal 27 from the inner tube main body 21 are attached to the portion to be installed. The range of a part of the entire circumference of the outer circumferential surface of the inner tube main body 21 of the inner tube main body 21 is 'reduced to the mounting area' as compared with the structure of the entire outer peripheral surface of the inner tube main body 21, and thus it is possible to achieve a lightweight ,miniaturization. (4) The conductive wire W1 as the power supply means connected to the current-carrying terminals 17, 17 and the flat cable C' connected to the conductive wire W1 are disposed on the lower cover 12 of the insulating resin, respectively. Appropriate insulation with the outer tube body 1 1 as a conductive member is ensured, and appropriate power supply to the first suction device 7 can be achieved. (5) The flat cable C is maintained in a space between the lower cover 12 and the upper cover 13 because it is disposed in a space insulated by the outer tube body ’, so that good insulation can be maintained. Therefore, it is possible to surely prevent the flat cable C from coming into contact with the human hand or directly contacting the outer tube main body 11 because the use of the long period "assuming that the peeling of the flat cable C occurs" occurs. (6) The upper cover body 13 is fixed to the outer tube body 藉 by the fastening method of the ultrasonic welding, and since the cover member 23 is fixed to the inner tube body -20-201236631 21, the upper cover body 13, The fixing of the cover member 23 is simple, and high-strength fixing can be achieved. In addition, the degree of completion of the welded joint is good, and the price of the product is also increased. (7) Since the outer tube body 11 and the inner tube body 21 are sealed by the elastic and electrically conductive sealing members 15d, 15e, the outer tube body i1 and the inner tube body 21 are made electrically conductive. A member, for example, can be electrostatically discharged by a discharge means provided in the outer tube body 11. In this way, productivity improvement and cost reduction can be achieved. Further, even when the outer tube main body 11 and the inner tube main body 21 are formed of a metal material such as aluminum alloy or the like, by sealing the sealing members 15d and 15e, the discharge can be made, for example, by a discharge means provided on the outer tube main body 11. These charged static electricity are appropriately discharged. (8) A signal line (not shown) that communicates with the side of the cleaner body 2 is provided, and the static electricity that causes the extension tube 5 to discharge on the signal line or the like is appropriately discharged by using an existing signal line or the like. Cost reduction can be achieved. Further, the first suction tool 7 and the second suction tool 6 may be electrically formed, for example, formed of a thermoplastic resin containing carbon fibers, and a portion that is in contact with the cleaning surface is electrically conductive in a portion in contact with the extension tube 5. . At this time, the first suction device 7 and the second suction device 6 can appropriately discharge the electric power that is the cleaning surface. Further, all or a part of the operation tube 4 (for example, a cylindrical portion other than the grip) may be formed of a thermoplastic resin containing carbon fibers, or may be from the outer tube 10 of the extension tube 5 via the operation tube 4' When cleaning - 21 - 201236631 The person holding the operation tube 4 'discharges the electric discharge of the extension tube 5 to the ground or the like. (9) When the outer tube main body Π and the inner tube main body 21 of the extension tube 5 are formed by injection molding, the formation is simpler than the case where the extension tube 5 is formed of a metal member, and the complicated shape or the like can be integrally formed. In addition, since the inner surfaces of the outer tube main body 11 and the inner tube main body 2 1 can be smoothed by injection molding, static electricity generated by the collision of dust can be suppressed. Further, the shape and the like of each portion can be arbitrarily set, the size of the lower lid body 12 and the upper lid body 13 in the circumferential direction, the size of the base member 22 and the lid member 23 in the circumferential direction, and the like, and the entire circumference of the outer peripheral surface can be attached. Some of the scopes can be set arbitrarily. Further, in the above-described embodiment, the extension pipe 5 is exemplified by the connection of the outer pipe 1 and the inner pipe 20. The present invention is not limited thereto, and may be constituted by one pipe. [2. Extension pipe] Next, the material of the outer tube main body 11 and the inner tube main body 21 of the extension pipe 5 which is provided in the vacuum cleaner 1 will be described. As described above, the outer tube main body 11 and the inner tube main body 21 constituting the extension tube 5 are composed of a thermoplastic resin containing carbon fibers in a predetermined ratio (hereinafter referred to as a "carbon fiber-containing resin" as appropriate). The following description of the carbon fiber-containing resin will be given. -22- 201236631 (Carbon fiber) Carbon fiber contains carbon fiber contained in resin, which is obtained by high-temperature carbonized fiber type such as polyacrylonitrile (PAN) resin or asphalt (short fiber), and usually 90% or more of carbon fiber It is composed of prime. The specific type of the carbon fiber is not particularly limited, and may be produced under any conditions depending on the physical properties of the carbon fiber to be described later, and a commercially available product may also be used. When the carbon fiber is produced, the production conditions, raw materials, and the like are not particularly limited, and may be produced by applying any known production conditions and raw materials. Further, the carbon fibers are not necessarily used singly or in combination of any two or more in any ratio and in any combination. The length of the carbon fiber contained in the carbon fiber-containing resin is not particularly limited, but is preferably 1 mm or less. In the carbon fiber of such a length, the carbon fibers contained in the outer tube main body 11 and the inner tube main body 21 can be more easily prepared, so that the manufacturing cost of the extension tube 5 can be reduced. In addition, in the carbon fiber-containing resin constituting the outer tube main body 11 and the inner tube main body 21, carbon fibers of such a length are contained in the outer tube main body 11 and the inner tube main body 21, and the carbon fibers are appropriately entangled with each other. Good rigidity. The carbon fiber contains the amount of the carbon fiber contained in the resin, and the carbon fiber contains 5% by mass or more and 15% by mass or less, preferably 1% by mass or less, based on the resin. The content of the carbon fiber is included in this range, whereby the manufacturing cost of the extension tube 5 is suppressed, and the balance between the weight reduction and the high rigidity of the extension tube 5 can be improved. Further, it is possible to easily fuse the above-described upper cover 13 (see Fig. 3) and cover member 23 (see Fig. 5) to the outer tube main body 1 1 and the inner tube main body 21, respectively. In this regard, please refer to Figure 1 〇 -23- 201236631 for details. In the graph obtained by the review by the inventors of the present invention, the thickness of the plate-shaped carbon fiber-containing resin is changed when the content of the carbon fiber is changed. (corresponding to the difference between the outer diameter and the inner diameter of the extension tube) and a graph of the thickness. In Fig. 10, the content of carbon fiber (CF) (% by mass) is shown in the vicinity of each graph, and "PP" is a polypropylene (CF content: 0% by mass) which is a thermoplastic resin containing no carbon fibers. Further, "86 MPa" on the vertical axis indicates the bending strength of polypropylene having a thickness of 2 mm used in the conventional vacuum cleaner. In other words, in the extension pipe made of a conventional polypropylene having a thickness of 2 mm, the bending strength of the plate-like polypropylene when the extension pipe was formed into a plate shape was 86 MPa. Therefore, when the bending strength of the plate-like resin is 86 MPa or more, the plate-shaped resin can be used to form an extension pipe having at least the same strength (rigidity) as the conventional one. Further, "〇.9 mm" on the horizontal axis is a small thickness which is possible for injection molding or blow molding. Therefore, when using a plate-shaped resin for injection molding or blow molding to form an extension tube, it is extremely important to form a plate-like resin-formed extension tube to have a minimum thickness of 〇.9 mm, as shown in Fig. 1A, when having the same thickness. The carbon fiber content in the carbon fiber-containing resin increases, and the strength (required strength) of the carbon fiber-containing resin increases. However, carbon fiber is usually expensive, and if the content of carbon fiber is increased, the manufacturing cost in the carbon fiber-containing resin is increased (price is increased). Further, if the thickness of the extension pipe is increased, the amount of the extension pipe is also increased (the quality is increased). Further, according to the review by the present inventors -24-201236631, the specific gravity of polyacrylic acid is 〇.92 g/cm3, and the specific gravity of polypropylene containing carbon fiber in the proportion of ι〇% by mass is 〇.95 g/cm3. Therefore, since the specific gravity of the polypropylene containing carbon fibers is larger than that of the polypropylene containing no carbon fibers, even if the content of the carbon fibers is increased, the weight is increased even by the same thickness. That is, in order to increase the rigidity of the extension pipe 5 (more specifically, the outer pipe body 11 and the inner pipe body 21), even if only the content of the carbon fiber is increased, the extension pipe 5 cannot be manufactured inexpensively, and the weight is increased. . Further, when the weight is excessively excessive, when the thickness of the extension pipe 5 is reduced, the molding described later becomes difficult, and the rigidity required for the extension pipe 5 cannot be ensured. Further, even if the length of the carbon fiber is reduced in order to maintain the same thickness and the extension tube 5' is manufactured at a low cost, the strength required for the extension tube 5 cannot be ensured. Further, in order to secure such rigidity, when the thickness of the extension pipe 5 is increased, the weight of the extension pipe 5 may become heavier (increased in mass). The graph shown in Fig. 1A is based on the above-mentioned problems, and the inventors reviewed the obtained ones. In other words, the reduction in manufacturing cost (cost reduction) at the time of manufacture, the securing of the required strength, and the weight extension tube 5 are thought by the inventors. In other words, for example, a carbon fiber containing a carbon fiber in a ratio of polypropylene to 10% by mass contains a resin, and when the strength is the same as the strength of the resin (the plate-like resin strength is 86 MPa) constituting the conventional extension tube, the thickness is When it exceeds about 2 mm, it will be heavier than the resin which comprises a conventional extension tube. Therefore, when the content ratio of the carbon fibers is 5 mass% or more and 15 mass% - 25,366,366, or less, the strength can be set to be the same as that of the resin constituting the conventional extension tube, and the thickness can be made larger than the conventional one ( About 2 mm) is thinner, and the extension tube can be made lighter than ever. In particular, since the extension tube has a tubular shape, it is more likely to be broken than other members constituting the cleaner, and is excellent in weight (i.e., thin) and high in rigidity. A carbon-containing resin having such a carbon fiber content is applied to an extension tube, whereby the longitudinal direction intermediate portion of the outer tube body 11 and the inner tube body 21 can be manufactured, and the difference between the outer diameter and the inner diameter of each is set to 1 mm or more. In addition, in the entire length direction, the difference is set to be 2 mm or less, which is lighter than the conventional one and has a high rigidity extension tube. In addition, the upper cover 13 and the lid member 23 can be more reliably fixed by ultrasonic welding in accordance with the extension tube 5 made of a carbon fiber-containing resin containing carbon fibers in a ratio of 5 mass% or more and 15 mass% or less. More specifically, as the content of carbon fibers increases, it is generally difficult to perform ultrasonic welding. However, according to the extension tube 5 containing the carbon fiber in the above ratio, the aforementioned inexpensiveness, light weight, and high rigidity can be maintained, and the upper lid body 13 and the lid member 23 can be fixed more reliably. Further, when the carbon fiber is contained in the thermoplastic resin in the above-described ratio, it is particularly advantageous in that the tube is elongated by injection molding or blow molding which will be described later. (Thermoplastic Resin) The extension tube 5 is made of a thermoplastic resin containing the above carbon fibers. In the above description of the carbon fibers, the thermoplastic resin is exemplified as the thermoplastic resin, and the thermoplastic resin contained in the extension tube 5 is not limited to polypropylene. In other words, as the thermoplastic resin forming the extension tube 5, any known thermoplastic resin (for example, ABS (Acrylonitrile-Butadiene-Styrene) resin or the like as described above) can be used, and the physical properties thereof can be provided as a function of the extension tube. random. However, the thermoplastic resin forming the elongated tube 5 is lightweight and inexpensive, and it is desirable from the viewpoint of the above-described specific example that polypropylene is used because it is easy to manufacture and use. Further, the thermoplastic resin is not necessarily used singly or in combination of two or more kinds in any ratio. Further, the extension tube 5 may contain any components other than the above-described carbon fiber and thermoplastic resin. Next, a method of manufacturing the outer tube main body 11 and the inner tube main body 21 made of a carbon fiber-containing resin constituting the extension tube 5 will be described. In the present embodiment, the outer tube body 11 and the inner tube body 21 are each formed by injection molding or blow molding of carbon fibers containing a resin. Hereinafter, the two methods of performing the injection molding and the blow molding are described, and the method of manufacturing the outer tube body 11 and the inner tube body 12 will be described. However, since the outer tube main body 11 and the inner tube main body 21 are slightly different in shape, and basically they can be manufactured in the same manner, the following description will be made by taking the manufacturing method of the inner tube main body 21 as an example. Further, for the sake of simplification of illustration, the shape of the inner tube main body 21 of Figs. 11 and 12 is a simple cylindrical shape. (When performing injection molding) When the carbon fiber-containing resin is used for injection molding, the specific method is not particularly limited. Hereinafter, the method of injection molding, which specifically describes injection molding, is not limited to the following. For example, the shape of the shape of the shape of the barrel (that is, the cylindrical shape of the metal mold (the upper mold 100 and the lower mold 101) and the core 102 of the inner diameter that can be formed are combined to form an integral one. When the gap is formed by the combination, the carbon fiber containing resin (that is, extruded) is injected through the through hole l〇2b of the flange 102a formed integrally with the core, and then cooled, and the mold 100, 101 is cooled. And the core 102 is cut as necessary, and the temperature of the metal 101 and the core 102 when the molten carbon fiber-containing resin is emitted is arbitrary, but the carbon fiber contains a temperature lower than the melting point of the carbon fiber. The resin is solidified to a temperature higher than the melting point temperature. In addition, the injection at the time of injection may not be impossible due to the temperature and composition of the resin containing the carbon fiber, but it may be, for example, about 200 MPa. For the specific device for the injection molding, for example, an injection molding machine described in Japanese Laid-Open Patent Publication No. JP-A-2006-110905 can be used. The inner tube body 21 is formed by injection molding. In addition to the outer shape of the inner tube body 21, the inner wall of the inner tube body 21 can be made smooth. Therefore, when the inner tube body 21 is circulated inside the inner tube body 21 during use, the internal resistance can be reduced. Further, the electric pumping method with the vacuum cleaner can be further improved, and after the cylindrical shape of the outer casing of FIG. 11 is formed, the 102 is heated and melted and the gold is removed, and the inner mold 100 is formed, and the resin is contained, so that the load is set. Therefore, in addition, as the special opening bulletin, etc., in addition to the inner shape, the air is absorbing the efficiency of the air blower -28-201236631. Further, it is possible to suppress turbulent flow of air due to the unevenness of the inner wall, and it is possible to further suppress noise accompanying turbulence. Further, since the entire length of the pipe can be integrally formed in one operation, simplification of the manufacturing process can be achieved. (When Blow Molding) When the carbon fiber-containing resin is used for blow molding, the specific method is not particularly limited. Hereinafter, the method of blow molding will be specifically described with reference to Fig. 12, but the method of blow molding is not limited to the following. For example, the metal molds 200 and 201 which can form the outer shape of the cylindrical shape shown in Fig. 12 are combined, and the parison 202 formed of the carbon fiber-containing resin is extruded inside the metal molds 200 and 201. Thereafter, high pressure air is injected into the interior of the parison 202 to push the parison 202 onto the inner surfaces of the metal molds 200, 201. Then, the parison 202 is solidified by cooling the metal molds 200, 201, and after the metal molds 200, 201 are removed, the burrs are cut as necessary to form the inner tube body 21. The carbon fiber constituting the parison 201 contains the temperature of the resin, the load when the parison 201 is extruded onto the inner surfaces of the metal molds 200 and 201, and the specific pressure of the high-pressure air, and the like, and is not particularly limited as long as any well-known blow molding is applied. The molding method can be used. In addition, a blow molding machine described in, for example, Japanese Laid-Open Patent Publication No. Hei 11-277617, can be used as a specific device for the blow molding. The inner tube body 21 is formed by blow molding, whereby the inner tube body 21 can be formed without using a core, so that the extraction of the core -29-201236631 can be simplified. Further, since the entire inner tube body 21 can be formed by the engineering process, the manufacturing process can be simplified. As described above, the outer tube body 11 and the inner tube body 21 can be manufactured inexpensively, and are lightweight and highly rigid. In other words, as for the extension pipe 5 which is usually attached as an accessory to the cleaner, it is possible to improve the performance, and it is possible to provide a vacuum cleaner which improves the performance as a whole of the cleaner. Further, as described above, even if a carbon fiber-containing resin is used, injection molding or blow molding can be easily performed. Therefore, it is easy to form the so-called extension tube 5 (more specifically, the outer tube body Π and the inner tube body 21). Further, the upper cover 13 and the lid member 23 can be easily and firmly fixed to the thermoplastic resin containing carbon fibers by ultrasonic welding. Further, in the vacuum cleaner 1, although the carbon fiber-containing resin is applied to the outer tube main body 11 and the inner tube main body 21, such a carbon fiber-containing resin may be applied to the outer tube body 11 and the inner tube main body 21, for example, and is suitable for forming a wheel. The components of the vacuum cleaner 1 etc. Further, as described above, the carbon fiber-containing resin is also applied to the member constituting at least a part (i.e., all or a part of) of the operation tube 4 and the member constituting at least a part (i.e., all or part of) of the cleaner body 2. [Brief Description of the Drawings] Fig. 1 is a perspective view showing the entire appearance of a vacuum cleaner according to an embodiment of the present invention. [Fig. 2] (a) is a side view for shortening the state of the extension pipe, and (b) is a side view of the state in which the extension pipe is extended from -30 to 201236631. (c) is a bottom view showing a state in which the extension pipe is elongated. Fig. 3 is an exploded perspective view of the outer tube of the extension tube. Fig. 4 is a view showing a support member provided with an outer tube, wherein (a) is an exploded perspective view and (b) is a perspective view. Fig. 5 is an exploded perspective view of the inner tube of the extension tube. Fig. 6 (a) is a view of the extension tube viewed from one end side, and (b) is a view of the extension tube viewed from the other end. [Fig. 7] (a) is a longitudinal end view of the extension pipe, and (b) is an enlarged longitudinal end view of the other end portion of the extension pipe. [Fig. 8] (a) is a perspective view of the extension pipe in a state after contraction, (b) is a perspective view of an extension tube partially seeing the upper cover and the cover member. [Fig. 9] (a) is a perspective view showing the arrangement relationship between the lower cover and the sliding portion. (b) is a plan view of the flat cable in the state of the extended pipe after contraction. (c) is the same side view, (d) A partial side view of the flat cable showing the state of the elongated extension tube. Fig. 10 is a graph showing the relationship between the thickness and the bending strength when the content of carbon fibers is changed in a singular manner. Fig. 11 is a view showing a state in which an extension tube is produced by injection molding in a mode. Fig. 12 is a view schematically showing a state in which an extension tube is produced by blow molding. [Main component symbol description] -31 - 201236631 1 : Vacuum cleaner 2 : Vacuum cleaner body 2b : Electric blower 5 : Extension pipe 6 : 2nd suction device (inhalation device) 7 : 1st suction device (inhalation device) 1 0 : Outer tube 1 1 : outer tube body 1 2 : lower cover body (insulating resin member) 17 : energized terminal (conductive member) 13 : upper cover body (cover member) 15 : support member 1 5 d ' 1 5 e : sealing member 17, 27: Power supply terminal 20: Inner tube 21: Inner tube body 22: Base member (insulating resin member) 23: Cover member C: Flat cable (power supply means) T1: Ventilation path T2: Ventilation path W1 : Conductive wire (power supply means) -32-