201236633 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，尤其是關於一種，可謀求 延長管的輕量化及絕緣性的提昇的吸塵器。 【先前技術】 以往，一般的吸塵器是具備有：吸塵器本體；在該吸 塵器本體連接有一端的軟管部；一端連結在軟管部的另一 端的操作管；一端連結在操作管的另一端的延長管；以及 可裝卸地被安裝在延長管的另一端的吸入具而構成。 延長管具備；外管；以及從該外管的另一端插入外管 內的內管，內管相對於外管可滑動地連結，並構成長度可 以調節者已爲眾所周知。 又，已知有在吸入具裝入有電動刷的吸塵器，電動刷 是包含：掃入地面的塵埃的旋轉清掃體；以及驅動該旋轉 清掃體的電動機所構成（專利文獻1)。 在專利文獻1的吸塵器，在延長管的內管內及外管內 形成有與通風路分離的通路，在該通路內配置有對吸入具 的電動刷供給電力用的導電構件。 依據這類的吸塵器，導電構件不會造成通風路的壓力 損失，又，與導電構件露出在延長管的外部的方式設置者 相比，在掃除作業中，對導電構件不會產生有東西卡住等 的不理想的問題。 201236633 [先行技術文獻] [專利文獻] [專利文獻1]日本特開平9 - 24 003號公報 【發明內容】 [發明所欲解決之課題] 可是，吸塵器的延長管考慮到操作性時輕量| ^ g胃 者較爲符合。於此，考慮以輕量且強度高的材料構成 管，例如考慮使用金屬製的薄壁的管子構成。 然而，以這類的金屬製的管子構成延長管時，^於·管; 子具導電性，所以以絕緣物覆蓋對吸入具的電動刷供給電 力用的導電構件等，會有絕緣用的構造大型化或複雜化的 虞慮。其結果’延長管的重量增大，會有輕量化變困難的 虞慮。 另一方面，使用吸塵器時，雖會有塵埃與延長管等衝 突’因而有靜電產生的情況’可是還是會有要使如此所產 生的靜電順利放電的期望。 尤其，延長管爲金屬製的管子時，與塑膠製的延長管 相較，人接觸到時會有受到大的觸電衝擊的虞慮。 本發明是以提供一種，可謀求延長管的輕量化並謀求 絕緣性的提昇的吸塵器作爲目的。 並提供一種’延長管的靜電放電性優的吸塵器作爲目 的。 -6- 201236633 [解決課題用的手段] 本發明，係具備有形成吸入具 風路的一部分的筒狀的延長管之吸 延長管是由含有碳纖維的樹脂所構 前述延長管的長方向端部的外周面 絕緣性的樹脂構件；以及在前述絕 前述延長管絕緣被配置的導電構件 根據本發明，由於延長管是由 成，所以可謀求延長管的輕量化， 配置在延長管的導電構件，由於在 延長管絕緣配置，所以延長管與導 的情況。 又，由於絕緣性的樹脂構件是 端部的外周面的全周的部分的範圍 全周者相比，可縮小被覆面積，這 型化。 又，本發明具備有：吸入具； 管；以及連接前述延長管的軟管部 前述延長管具備外管與內管，藉由 前述內管的端部，而連結使前述外 連通而構成，前述外管及前述內管 所構成，前述外管與前述內管之間 的密封構件所密封。 根據本發明，由於延長管的外 與電動送風機之間的通 塵器’其特徵爲：前述 成’且具備有：被覆在 的全周的一部分範圍的 緣性的樹脂構件上，與 〇 含有碳纖維的樹脂所構 並確保剛性。而且，被 絕緣性的樹脂構件上與 電構件不會有電性導通 被覆在延長管的長方向 ，所以與被覆外周面的 樣子便可謀求輕量、小 連接前述吸入具的延長 之吸塵器，其特徵爲： 在前述外管的端部插入 管與前述內管的通風路 ，是由具導電性的材料 ，是由具彈性及導電性 管及內管由具導電性的 201236633 材料所構成，且外管與內管之間是由具彈性及導電性的密 封構件所密封，所以可經由密封構件電性連接外管與內管 ’在外管與內管並可藉由放電手段等適當將帶電的靜電予 以放電。 [發明的效果] 根據本發明，可獲得可謀求延長管的輕量化並謀求絕 緣性的提昇之吸塵器。 又，根據本發明，可獲得在延長管的靜電的放電性優 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〕 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1 0與內管20所構成，形成外管1 0的外管本體1 1 ( 201236633 參閱圖2(b))、與形成內管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、ABS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SW等可進行電動送風機2b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S W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 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的一端是連接於吸麈器本體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~端。在操作管4除了前述的手邊操作 -9- 201236633 開關SW之外，在連接有延長管5的未圖式的開口部， 有從吸塵器本體2進行供電的未圖式的供電端子。在該 電端子連接有作爲設於延長管5的外管10的一端的導 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 )所示，在外管10的另一端部11c插入內管20的一端 ，而連結使外管1〇與內管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 1 〇與內管20之間，是以具彈性及導電性的密封構件1 、1 5 e (參閱圖3、圖4 ( a ))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 管5的內管20的另一端20a的吸入具’在其另一端6a 裝卸地連接有第1吸入具7。第2吸入具6是從其另一 6a卸下第1吸入具7，藉此可單獨作爲吸入塵埃的吸入 發揮功能》第2吸入具6也可可裝卸地連接在延長管5 外管10與操作管4的另一端4a之間。可是’第2吸入 6並非必須的構成。 第1吸入具7是連接在第2吸入具6的另一端6a 吸入具，在下面（與清掃面相對的面）開口有未圖式的 入口。此外，第1吸入具7也可對延長管5的內管2〇 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。電動刷是包 :掃入成爲清掃面的地面等的塵埃的旋轉清掃體、與驅 設 供 電 (b 部 管 5d 長 可 端 具 的 具 的 吸 的 含 動 -10- 201236633 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經軟管部3、操 作管4、延長管5、第2吸入具6供給對該第1吸入具7 的電動機進行供電的電力。關於設於延長管5的供電手段 等的構成的詳細容後敘述。 延長管5是如前述，形成外管10的外管本體11 (參 閱圖2(b))、與形成內管20的內管本體21(參閱圖2 (b ))是由含有碳纖維的熱可塑性樹脂所成形。亦即， 作爲延長管5的主要的構成構件的外管本體11與內管本 體21，是由含有輕量且高強度的碳纖維的熱可塑性樹脂 所形成。 又，延長管5是在內部具有對第1吸入具7進行供電 用的供電手段（後述的外管1 0的扁平纜線C等（參閱圖 9(b))。 此外，在延長管5與第1吸入具7之間介設有第2吸 入具6時，從吸塵器本體2所供給的電力，是從延長管5 經設在第2吸入具6的未圖式的導電構件對第1吸入具7 進行供給。延長管5與第1吸入具7可直接電連接時，則 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lla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i 2 的方式作爲安裝在軀幹部lla的蓋體構件的上蓋體13而 構成。201236633 VI. TECHNOLOGICAL FIELD OF THE INVENTION The present invention relates to a vacuum cleaner, and more particularly to a vacuum cleaner which can increase the weight of the pipe and improve the insulation. [Prior Art] Conventionally, a general vacuum cleaner includes a vacuum cleaner body, a hose portion to which one end of the cleaner body is connected, an operation pipe whose one end is connected to the other end of the hose portion, and one end of which is connected to the other end of the operation pipe. And a suction device that is detachably attached to the other end of the extension tube. The extension tube is provided; the outer tube; and the inner tube inserted into the outer tube from the other end of the outer tube, the inner tube being slidably coupled with respect to the outer tube, and the length of which can be adjusted is well known. Further, a vacuum cleaner in which an electric brush is incorporated in an inhalation device is known, and the electric brush includes a rotary cleaning body that sweeps dust on the ground, and a motor that drives the rotary cleaning body (Patent Document 1). In the cleaner of Patent Document 1, a passage separate from the air passage is formed in the inner tube and the outer tube of the extension pipe, and a conductive member for supplying electric power to the electric brush of the suction device is disposed in the passage. According to this type of vacuum cleaner, the conductive member does not cause a pressure loss of the air passage, and in comparison with the manner in which the conductive member is exposed to the outside of the extension pipe, there is no object to the conductive member during the cleaning operation. Unsatisfactory problems such as waiting. [Patent Document 1] [Patent Document 1] Japanese Laid-Open Patent Publication No. Hei 9-24-003. SUMMARY OF THE INVENTION [Problems to be Solved by the Invention] However, the extension tube of the vacuum cleaner is lightweight in consideration of operability | ^ g stomach is more consistent. Here, it is conceivable to form the tube from a lightweight and high-strength material, for example, a thin-walled tube made of metal. However, when the extension pipe is formed of a metal pipe of this type, the pipe is electrically conductive, and the electrically conductive member for supplying electric power to the electric brush of the suction device is covered with the insulator, and the structure for insulation is provided. Large-scale or complicated concerns. As a result, the weight of the extension tube is increased, which may make it difficult to reduce the weight. On the other hand, when a vacuum cleaner is used, there is a case where there is a collision between dust and an extension tube, and thus static electricity is generated. However, there is a desire to smoothly discharge the static electricity thus generated. In particular, when the extension tube is a metal tube, it is more likely to be subjected to a large electric shock when it comes into contact with a plastic extension tube. The present invention has an object of providing a vacuum cleaner which can increase the weight of the pipe and improve the insulation. Further, a vacuum cleaner having an excellent electrostatic discharge property of an extension tube is provided. -6-201236633 [Means for Solving the Problem] In the present invention, the suction extension tube including the tubular extension tube forming a part of the suction air passage is configured by a resin containing carbon fibers to form the long end portion of the extension tube. The outer peripheral surface insulating resin member; and the conductive member in which the extension tube insulation is disposed as described above, according to the present invention, since the extension tube is formed, it is possible to increase the weight of the tube and arrange the conductive member in the extension tube. Due to the extension of the tube insulation configuration, the tube and the guide are extended. In addition, since the insulating resin member is in the range of the entire circumference of the outer peripheral surface of the end portion, the coating area can be made smaller than that of the entire circumference. Further, the present invention includes: an inhalation device; a tube; and a hose portion that connects the extension tube; the extension tube includes an outer tube and an inner tube, and the end portion of the inner tube is connected to connect the outer portion, and the The outer tube and the inner tube are configured to seal the sealing member between the outer tube and the inner tube. According to the present invention, the dust collector "between the extension tube and the electric blower" is characterized in that it is provided with a resin member having a part of the entire circumference of the coating, and the carbon fiber is contained in the crucible. The resin is constructed and ensures rigidity. Further, since the insulating resin member and the electric member are not electrically connected to the longitudinal direction of the extension tube, it is possible to obtain a vacuum cleaner that is lightweight and small in connection with the extension of the suction device. The utility model is characterized in that: the ventilation path for inserting the tube and the inner tube at the end of the outer tube is made of a conductive material, and the elastic and conductive tube and the inner tube are made of electrically conductive 201236633 material, and The outer tube and the inner tube are sealed by a resilient and electrically conductive sealing member, so that the outer tube and the inner tube can be electrically connected via the sealing member 'in the outer tube and the inner tube and can be electrically charged by means of discharge or the like. Static electricity is discharged. [Effect of the Invention] According to the present invention, it is possible to obtain a vacuum cleaner which can increase the weight of the pipe and improve the insulation. Further, according to the present invention, it is possible to obtain a vacuum cleaner having excellent discharge performance of static electricity in the extension tube. [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. [1. Overall structure of the cleaner] As shown in Fig. 1, the cleaner 1 is provided with a cleaner body 2, a hose portion 3, and an operation tube 4 provided with a hand operated switch SW and the like; The extension tube 5 provided in a telescopic manner, and the second inhalation device 6 and the first inhalation device 7 as the inhalation device are configured. In the present embodiment, the extension pipe 5 is composed of the outer pipe 10 and the inner pipe 20, and the outer pipe main body 1 1 of the outer pipe 10 is formed (201236633 see Fig. 2(b)), and the inner pipe 20 is formed. The inner tube body 21 (see Fig. 2(b)) is formed of a thermoplastic resin (for example, polypropylene, ABS 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 placed and cut off. 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 operated switch S W is disposed in the grip. In addition, when the following description refers to the direction of each part, the side closer to the cleaner body 2 is one end (one end side) from the first suction tool 7 along the unillustrated air passage toward the cleaner body 2. The opposite side is explained as the other end (the other end side). One end of the hose portion 3 is connected to the connection port 2a of the suction main 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 the end of the operation tube 4. In addition to the aforementioned hand operation -9-201236633 switch SW, the operation tube 4 has an unillustrated power supply terminal for supplying power from the cleaner body 2 in an unillustrated opening portion to which the extension tube 5 is connected. An electric terminal 17 as a guide member provided at one end of the outer tube 10 of the extension tube 5 is connected to the electric terminal (see FIG. 2(a)). » The extension tube 5 is provided with the outer tube 10 and the inner tube 20 as described above. As shown in Fig. 2), the other end portion 11c of the outer tube 10 is inserted into one end of the inner tube 20, and the outer tube 1 is connected to the air passages T and T2 of the inner tube 20. The extension tube 5 is expandable and contractible as shown in Fig. 2(a) and Fig. 2(b), and is between the outer 1 and the inner tube 20, and is a sealing member 1 and 15 e having elasticity and conductivity (refer to Fig. 3 and Fig. 3). 4 ( a )) Sealed to an airtight state. Further, the details of the extension tube 5 will be described later. As shown in Fig. 1, the second suction tool 6 is a suction device that is detachably connected to the other end 20a of the inner tube 20 of the extension tube 5, and the first suction device 7 is detachably connected to the other end 6a. The second suction tool 6 is configured to detach the first suction device 7 from the other 6a, thereby functioning as a suction of the suction dust alone. The second suction device 6 can also be detachably connected to the extension tube 5 and the outer tube 10 and the operation. Between the other end 4a of the tube 4. However, the second inhalation 6 is not essential. The first suction device 7 is connected to the other end 6a of the second suction device 6, and the suction device is opened on the lower surface (the surface facing the cleaning surface). Further, the first suction tool 7 may be used to connect the other end 20a of the inner tube 2A of the extension tube 5 and the other end 4a of the operation tube 4. The first suction tool 7 is provided with an electric brush of an unillustrated type. The electric brush is a rotary cleaning body that sweeps dust such as the floor on the cleaning surface, and drives the power supply (the suction of the b-unit tube 5d can be used to absorb the suction -10-201236633. The motor of the rotary cleaning body) In the present embodiment, the vacuum cleaner main body 2 is supplied with electric power for supplying electric power to the electric motor of the first suction tool 7 via the hose portion 3, the operation tube 4, the extension tube 5, and the second suction tool 6. The configuration of the power supply means of the extension pipe 5, etc. will be described later in detail. The extension pipe 5 is the outer pipe body 11 (see Fig. 2 (b)) which forms the outer pipe 10 as described above, and the inner pipe body 21 which forms the inner pipe 20. (Refer to Fig. 2(b)) is formed of a thermoplastic resin containing carbon fibers. That is, the outer tube body 11 and the inner tube body 21 which are main constituent members of the extension tube 5 are made of light weight and high strength. In addition, the extension tube 5 has a power supply means for supplying power to the first suction tool 7 (a flat cable C of an outer tube 10 to be described later (see FIG. 9(b)). In addition, a medium is provided between the extension tube 5 and the first suction device 7 In the case of the second inhalation device 6, the electric power supplied from the cleaner main body 2 is supplied from the extension pipe 5 to the first suction tool 7 via the non-illustrative conductive member provided in the second suction device 6. The extension pipe 5 and the 1 When the suction device 7 can be directly electrically connected, the conductive member of the second suction device 6 is not required. The outer tube 10 mainly includes a cylindrical outer tube body 11 as shown in Fig. 3, and is attached to the outer tube body 11. The lower cover body 1 2 of the insulating resin member of the upper portion 11 a2 of the trunk portion 11a and the upper lid body 13 of the lid member attached to the trunk portion 11a are covered so as to cover the lower cover body i 2 .
S -11 - 201236633 外管本體11是藉由後述的射出成 體形成，在內側可滑動地收容內管2 0 ( 成與內管20連通的通風路T1。 外管本體11具有：軀幹部lla; 1 1 a更小徑的一端部1 1 b ;以及被作成j 徑的另一端部1 1 c。 軀幹部11a具有比一端部lib及另 薄壁的薄壁部。在本實施形態，軀幹部 (長方向中間部）被作成薄壁部，謀求 量化。本實施形態中，將薄壁部的厚度 )作成1.2mm±0.2mm，而形成比由聚丙 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 ，例如，也可將軀幹部1 1 a的其他的部 ，又，也可將一端部lib、另一端部11 而形成。 在軀幹部11a的上部11 a2形成有瓦 平坦的面S1。在上部lla2突設有肋1 該平坦的面S1。在肋lid上蓋體13的 安裝上蓋體13之際，在肋lid的延設 的間隔突設的卡止部lie卡止在上蓋體 ，在上部11 a2定位上蓋體13。 外管本體11的一端部lib是如圖 成略圓筒狀，且被插入被設在操作管4 型或吹塑成型而一 參閱圖5 )，並形 被作成比該軀幹部 :匕軀幹部1 1 a更大 一端部1 1 c被作成 1 1 a的側部1 1 a 1 外管本體1 1的輕 (外徑與內徑的差 烯100%所成形的 1 1 a的側部1 1 a ] 分作成薄壁而形成 c的部分作成薄壁 『載置下蓋體12的 1 d，而從兩側夾著 下緣13d可卡合， 方向，將分開預定 1 3的切口部1 3 e 6 ( a )所示，被形 (參閱圖1，以下 -12- 201236633 相同）的另一端的未圖式的開口部，而可與操 〇 在一端部1 1 b的上部外周面，如圖3所示 1 1 b 1。在該凹部1 1 b 1，形成被設在操作管4 連接用鉤的卡合。 又，在一端部lib的上方如圖2(a) ( b 通電端子17、17(圖中僅一方圖示）。在該涵 、1 7連接有被設在操作管4的開口部的未圖 藉此，可從操作管4對延長管5的外管10供給 在外管本體11的另一端部11c，配設有 支撐內管2 0的支撐構件1 5。支撐構件1 5具 框部15a;被該框部15a所保持的環狀的卡合 被配置在框部15a的一端側的密封支撐部15c 構件15d、15e而構成。 環狀的框部15a是如圖4(a)所示，具 部151 ;保持部152。安裝部151具有與外管才 —端部1 1 c的開口 1 1 c2的內面對應的外形狀 固定在開口 llc2的內面。 在安裝部151的內面形成有讓內管20的 進行用的導引肋151a。 又，在安裝部151的上端部形成有插通內 述的滑動部2 5及滑動蓋體2 8 (參閱圖5、圖 ))的插通部1 5 1 b。 保持部152是呈圓環框狀，一體形成在安 作管4連接 形成有凹部 的未圖式的 )，配置有 ί電端子17 式的端子。 •電力。 滑動自如地 備：環狀的 構件15b ; :以及密封 備有；安裝 :體1 1的另 ，而形成被 滑動圓滑的 管20的後 7(a) ( b 裝部1 5 1的 -13- 201236633 —端。在高保持部152，卡合構件15b可朝上下方向移動 地被外嵌並被保持。在保持部152的下部，開口形成有可 插通被形成在卡合構件15b的卡合突部153a的插通孔 152a。在保持部152的上端部形成有可插通內管20的後 述的滑動部25 (參閱圖5、圖9 ( a ))的框狀部1 52b。 卡合構件15b呈縱長圓環狀，在與環狀的框部i5a的 保持部1 5 2的上下端之間具有未圖式的間隙，而形成外嵌 在保持部1 52。藉此，卡合構件丨5b利用該間隙，形成可 在上下方向移動。在卡合構件15b的下部形成有可插通到 保持部152的插通孔152a的卡合突部153a。該卡合突部 1 5 3 a具有卡合構件1 5 b相對於保持部1 5 2朝上方向被彈 推的狀態下’通過前述插通孔152a朝保持部152的內側 突出的大小’藉由如此突出的方式，卡合突部153a形成 可卡合在位於保持部152的內側的未圖示的內管20的凹 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，形成有 彈簧支撐部153c’在該彈簧支撐部153c，未圖式的螺旋 彈簧形成縮設在與外管10(外管本體）的內面之間。 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1 5 b的上方，如圖3、圖7 ( b )所 • 14- 201236633 示’在與上蓋體13的另一端部13c之間形成配設有滑動 構件1 4。滑動構件1 4是藉由人的操作可經由上蓋體1 3 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14c進入卡合構件15b的上 方’並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 14朝另一端側滑動操作，使卡合在內管20的凹溝21d的 卡合突部153a從凹溝21d脫離，而可解除對凹溝21d的 卡合突部153a的卡合。藉此，解除相對於外管10的內管 20的固定，而形成內管20可相對於外管10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π 的另一端部11c與內面接觸而被固定。在密封支擦部]5c 的一端形成安裝有密封構件15d的凹部154，在另一端形 成安裝有密封構件15e凹部155。 密封構件1 5 d、1 5 e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 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’外管與內管20的通風路τΐ、Τ2間形成 藉由密封構件l5d、156被密封。 於此’由於密封支撐部1 5 c及密封構件1 5 d、1 5 e是 皆具有導電性者，所以，經由該等的密封支撐部〗5 c及密 -15- 201236633 封構件15d、15e，外管10的外管本體11與內管20的內 管本體21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 —面可放電到空氣中的靜電防止氈、金屬纖維等，又，亦 可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 5 d、1 5 e本 身，而形成以密封構件1 5d、1 5e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lla2的肋lid的內側，而被覆在被載置 在平坦的面S1的軀幹部Ua。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軀 幹部1 1 a (相當於請求項3所謂的外管）的上部1 1 a2。 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C 1。 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 〇 在這類的下蓋體12與上蓋體13之間（在下蓋體12 -16- 201236633 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S -11 - 201236633 The outer tube body 11 is formed by an injection body described later, and slidably accommodates the inner tube 20 (the air passage T1 that communicates with the inner tube 20). The outer tube body 11 has a trunk portion 11a. 1 1 a is one end portion 1 1 b of a smaller diameter; and the other end portion 1 1 c is formed as a j-diameter. The trunk portion 11a has a thin portion which is thinner than the one end portion lib and another thin wall. In the present embodiment, the trunk The portion (the intermediate portion in the longitudinal direction) is formed into a thin portion and is quantified. In the present embodiment, the thickness of the thin portion is made 1.2 mm ± 0.2 mm to form a thickness (about 2 mm) of the extension tube from the conventional polypropylene. Thinner. Further, the thin portion is not limited to being formed in the trunk portion. For example, the other portion of the trunk portion 1 1 a may be formed, or the one end portion lib and the other end portion 11 may be formed. A flat surface S1 is formed on the upper portion 11a2 of the trunk portion 11a. The flat surface S1 of the rib 1 is protruded from the upper portion 11a. When the upper lid body 13 of the rib lid upper body 13 is attached, the locking portion lie protruding from the extending interval of the rib lid is locked to the upper lid body, and the upper lid body 13 is positioned at the upper portion 11a2. One end portion lib of the outer tube body 11 is formed in a substantially cylindrical shape, and is inserted into the operation tube type 4 or blow molded (see Fig. 5), and is shaped to be larger than the trunk portion: the torso portion 1 1 a larger end portion 1 1 c is formed as 1 1 a side portion 1 1 a 1 outer tube body 1 1 light (outer diameter and inner diameter difference 100% formed by 1 1 a side portion 1 1 a ] The portion which is formed into a thin wall to form c is formed into a thin wall "1 d for placing the lower cover body 12, and the lower edge 13d is engageable from both sides to be engaged, and the direction is to be separated by the predetermined notch portion 1 of 1 3 3 e 6 ( a ), the unillustrated opening at the other end of the shape (see Fig. 1, the following -12-201236633 is the same), and can be manipulated on the upper outer peripheral surface of the one end portion 1 1 b, As shown in Fig. 3, 1 1 b 1 , the recess 1 1 b 1 is formed to be engaged with the hook for connecting the operation tube 4. Further, above the one end portion lib, as shown in Fig. 2(a) (b. 17 and 17 (only one of the figures is shown). The han, 17 is connected to the opening provided in the operation tube 4, whereby the outer tube 10 of the extension tube 5 can be supplied from the operation tube 4. The other end portion 11c of the pipe body 11 is provided There is a support member 15 that supports the inner tube 20. The support member 15 has a frame portion 15a, and the annular engagement held by the frame portion 15a is disposed on the one end side of the frame portion 15a. The annular frame portion 15a is a member portion 151 and a holding portion 152 as shown in Fig. 4(a). The mounting portion 151 has an opening 1 1 c2 with the outer tube end portion 1 1 c. The outer shape corresponding to the surface is fixed to the inner surface of the opening llc2. A guide rib 151a for allowing the inner tube 20 to be formed is formed on the inner surface of the attachment portion 151. Further, an insertion portion is formed at the upper end portion of the attachment portion 151. The sliding portion 2 5 and the insertion portion 1 5 1 b of the sliding cover 2 8 (see FIG. 5 and FIG. 3 ). The holding portion 152 has a ring-shaped frame shape and is integrally formed with the concave portion formed by the connection of the mounting tube 4 . The terminal is not equipped, and is equipped with a terminal of the type of the electric terminal. •electric power. Sliding freely: annular member 15b; and sealed; installed: body 1 1 to form the rear 7 (a) of the smoothed tube 20 (b - 13 - 13 of the mounting part 1 5 1 In the high holding portion 152, the engaging member 15b is externally fitted and held in the vertical direction. In the lower portion of the holding portion 152, the opening is formed with a snap-fit engagement formed in the engaging member 15b. The insertion hole 152a of the protrusion 153a. The frame part 152b which inserts the sliding part 25 (refer FIG. The member 15b has a vertically long annular shape, and has a gap (not shown) between the upper and lower ends of the holding portion 155 of the annular frame portion i5a, and is formed to be externally fitted to the holding portion 152. Thereby, the engaging member is formed. The 丨5b is formed to be movable in the vertical direction by the gap. An engagement protrusion 153a that can be inserted into the insertion hole 152a of the holding portion 152 is formed at a lower portion of the engaging member 15b. The engaging projection 1 5 3 a The engaging member 1 5 b is pushed toward the inner side of the holding portion 152 through the insertion hole 152a in a state in which the engaging portion 15 5 is pushed upward in the upward direction of the holding portion 15 2 2 The protruding size ′ is such that the engaging projection 153a forms a recess 21d that can be engaged with the inner tube 20 (not shown) located 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 ), a spring supporting portion 153 c ′ is formed on the spring supporting portion 153 c, and a coil spring not shown is formed to be contracted with the outer tube 10 . 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. The engaging member 15b is normally pushed upward by the coil spring and the spring portion 153b, and the engaging projection 153a is held in a state of being protruded toward the inside of the holding portion 152 through the insertion hole 152a. Above the engaging member 15b of this type, as shown in Fig. 3, Fig. 7(b), 14-201236633, a sliding member 14 is disposed between the other end portion 13c of the upper cover 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 a human operation, by the sliding member 1 4 is slidably operated toward the other end side, and the end portion 14c enters the upper side of the engaging member 15b and resists the elastic force generated by the coil spring and the spring portion 153b to press the engaging member 15b downward. When the slide member 14 is slid toward the other end side, the engagement projection 153a of the groove 21d of the inner tube 20 is detached from the groove 21d, and the engagement of the engagement projection 153a of the groove 21d can be released. . Thereby, the fixing of the inner tube 20 with respect to the outer tube 10 is released, and the inner tube 20 is formed to be slidable relative to the outer tube 10. The seal support portion 15c is an annular member, and is formed of a conductive material for performing an effective discharge of static electricity to be described later, for example, a thermoplastic resin containing metal or carbon fiber, and the outer tube body π The one end portion 11c is fixed 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-bracket portion 5c, and a concave portion 155 to which the sealing member 15e is attached is formed at the other end. The sealing members 1 5 d and 15 e are formed of a conductive material for elasticity and an effective discharge of electricity to be described later, and for example, a metal fiber or conductive particles are contained in a material having elasticity. . The trunk portion 21a of the inner tube 20 is inserted inside the sealing members 15d, 15e (see Fig. 5). Thereby, the air passages τ ΐ and Τ 2 of the outer tube and the inner tube 20 are formed to be sealed by the sealing members 15d and 156. Here, since the seal support portion 15c and the seal members 15d, 15e are all electrically conductive, the seal members 154c and the seal members 15d, 15e are sealed via the seal support portion 1-5c and the -15-201236633 The outer tube body 11 of the outer tube 10 and the inner tube body 21 of the inner tube 20 are electrically connected. In the present embodiment, the outer tube 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, an antistatic felt or a metal fiber which can discharge a corona discharge surface into the air can be used, and a rubber or EVA (vinyl acetate copolymer) having a discharge effect can also be used. The material of the mixed surfactant forms the sealing members 15d, 15e itself, and is formed to discharge by the sealing members 15d, 15e. Further, a signal line or the like having a conductivity (not shown) that can communicate 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 formed. As shown in Fig. 3, the lower cover body 12 is made of an insulating material. For example, an elongated upper concave member formed of a resin such as polypropylene is embedded in the inner side of the rib lid of the upper portion 11a of the trunk portion 11a, and is covered. It is placed on the trunk portion Ua of the flat surface S1. In other words, the lower cover body 12 is the upper portion 1 1 a2 of the trunk cadre 1 1 a (corresponding to the so-called outer tube of claim 3) covering a part of the entire circumference of the outer peripheral surface of the other end portion of the extension tube 5. The other end portion C 1 of the flat cable C constituting the power supply means is attached to a slightly central portion in the longitudinal direction of the recessed portion of the lower cover 12. The flat cable C has flexibility, and the one end portion C2 extends toward the one end side along the concave portion, and is disposed in a U-shaped manner toward the other end side, and is disposed between the lower cover body 12 and the upper cover body 13 of this type. (on the lower cover 12 - 16 - 201236633) ' as shown in Fig. 8 (b) and Figs. 9 (a) to (c), the slide portion 25 provided in the inner tube 20 is along the lower cover 12 The long direction is movably configured. 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10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17是經由絕緣性的下蓋體12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。 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 -17- 201236633 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2 2 ;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21具有：軀幹部2 1 a、以及做成比該軀幹 部21a更大徑的另一端部21c。 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21 a2 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21a2，有助於外管10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 件22。 基座構件2 2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 -18- 201236633 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2 1 a，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。 操作按紐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24a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 21c2，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1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20 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24b，解除鉤部24a的卡 止。 在基座構件22的通電端子支撐部22b安裝有金屬製 的通電端子27。又，在滑動部25的一端部，如圖9(b) (c)所示，連接有扁平纜線 c的一端部C2(參閱圖9( b) (c))，該扁平纜線C的一端部C2與通電端子27 -19- 201236633 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，例如由聚丙烯等 所形成。蓋體構件23是如圖5所示，將下緣23c、23c卡 合在被設在內管本體21的另一端部21c的上部21cl的溝 部21c3'21c3的方式’―體安裝在另一端部21c，在與 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，將 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、接著材等進 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，也可藉 由在內管本體21固定蓋體構件23所爲的蓋體構件23的 按壓來進行，也可將基座構件22直接固定在內管本體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構件 進行。 在蓋體構件23的另一端一體形成有被安裝在基座構 件22的滑動部25的滑動蓋體28。滑動蓋體28在與滑動 部2 5之間形成收容未圖示的導電線的空間。 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24b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11c的支撐 構件15的插通部151b，被插入與外管本體11絕緣的下 -20- 201236633 蓋體12和上蓋體13之間。 而且，如前述經由被配置在滑動部2 5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17、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Π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 -21 - 201236633 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，可縮小被安裝面積 ，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1 2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1 1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。 此外，也可在內管本體2 1 (相當於請求項3所謂的 內管）介設其他的絕緣性的樹脂構件，並在其絕緣性的樹 脂構件上配置扁平纜線C。 (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11，又，由於蓋體構件23被固定在內管 本體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 -22- 201236633 提昇。 (7) 由於外管本體n與內管本體2i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11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u 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1 1的一個放電手段使在該 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 〇經由操作管4 ’再者在清掃時經 由握住該操作管4的人’將延長管5帶電的靜電放電到地 -23- 201236633 面等。 (9)由射出成形的方式成形延長管5的外管本體Η 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’生産性優 〇 又，由於藉由射出成形可使外管本體11及內管本體 21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1 3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10 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Π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Π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 -24- 201236633 (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1mm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、15質量％以下、理想爲丨〇質量％ 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 Π及內管本體21的利點。關於這點，一面參閱圖1〇 — 201236633 面詳細說明。 圖1 〇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」表示以往的吸麈器所使用的厚 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86MPa。因此，若板狀樹脂 的彎曲強度在8 6MPa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 -26- 201236633 的檢討，聚丙烯的比重爲0.9 2 g/cm3，而例如以10質量％ 的比例含有碳纖維的聚丙烯的比重爲0.95g/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2 1 )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 ’例如在含有聚丙烯與10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〗5質 -27- 201236633 量％以下時，不僅可成爲與構成以往的延長管的 度的強度，且可將厚度作的比以往（約2mm ) 且可將延長管做成比以往更爲輕量者。尤其，由 爲筒狀，所以與構成吸塵器的其他的構件相比容 總之輕量（亦即厚度薄）而且具高剛性是具有優 。將具有這類的碳纖維含有量的碳含有樹脂適用 ，藉此可製造外管本體11及內管本體21的長方 ，各自的外徑與內徑的差設在1mm以上1.4mm ，在長方向全域，將該差設在所謂2mm以下， 且輕量，而且高剛性的延長管。 又，依據由以5質量％以上15質量％以下 有碳纖維的碳纖維含有樹脂構成的延長管5，可 波熔接更確實固定前述的上蓋體13及蓋體構件 體而言，碳纖維的含有量愈是增加，則通常進行 接會有變困難的傾向。然而，根據以前述比率含 的延長管5，可維持前述的廉價、輕量、高剛性 達到更確實進行上蓋體13及蓋體構件23的固定 藉由將碳纖維以前述的比率含有在熱可塑性樹脂 有特別容易藉由後述的射出成形或吹塑成型成形 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 。前述的碳纖維的說明中，作爲熱可塑性樹脂雖 樹脂同程 更薄，而 於延長管 易破損， 秀的效果 於延長管 向中間部 以下，又 比以往更 的比例含 藉由超音 23。更具 超音波熔 有碳纖維 ，且也可 。再者， 時，也具 延長管的 脂所構成 舉聚丙烯 -28- 201236633 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AB S ( 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U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2 1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 -29- 201236633 法並無特別限制。以下，雖具體說明射出成形的方法，可 是射出成形的方法並不限於以下的內容。例如，如圖i ! 所示’將可成形筒形狀的外形（亦即圓柱形狀的外観）的 金屬模（上模具100及下模具101):以及可成形圓筒形 狀的內徑的芯子1 02予以組合而形成一體者。然後，在將 該等予以組合之際產生的隙間，通過貫穿與芯子1 02形成 —體所形成的凸緣102a的貫穿孔102b，射出被加熱而熔 融的碳纖維含有樹脂（亦即擠出）。之後冷卻、及卸下金 屬模1〇〇、101及芯子102，並依需要切斷毛邊，形成內 管本體21。 射出熔融後的碳纖維含有樹脂之際的金屬模1 00、 101及芯子102的溫度雖爲任意，可是在碳纖維含有樹脂 的融點以下的溫度時，碳纖維含有樹脂會固化，所以設定 成比該融點溫度更高的溫度。又，射出之際的射出荷重， 由於會因碳纖維含有樹脂的溫度、組成而有所不同，所以 無法一槪而論，可是例如可設爲200MPa左右。此外，作 爲進行射出成形之際的具體的裝置，例如可使用曰本特開 2010 — 131966號公報、日本特開2006- 110905號公報等 記載的射出成型機。 藉由射出成形的方式成形內管本體2丨，藉此’除了 內管本體2 1的外形狀之外，也可精確佳地構成內形狀， 並可將內管本體21的內壁作成平滑者。因此，空氣在吸 麈器使用時的內管本體21內部流通之際’可減少空氣的 內部抵抗，可更進一步提昇具備吸塵器的電動送風機的運 -30- 201236633 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12，一面具體說 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 200、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行成的型还 202。之後，對型还 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2 1，所以可謀求芯子的拔出 -31 - 201236633 等的製造工程的簡化。又，由於可以一次的工程成形內管 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11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 -32- 201236633 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1 1 ]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】 -33- 201236633 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 〇 :外管 1 1 :外管本體 1 2 :下蓋體（絕緣性的樹脂構件） 1 7 :通電端子（導電構件） 13:上蓋體（蓋體構件） 1 5 :支撐構件 1 5 d、1 5 e :密封構件 17、27 :通電端子 20 :內管 2 1 :內管本體 22 :基座構件（絕緣性的樹脂構件） 2 3 :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） -34-The folded end portion C2 of the flat cable C is electrically connected. According to this, 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 with respect to the inner tube 20 of the outer tube 10. 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 12, 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 formed by fitting the lower edge 13d to the rib lid provided on the upper portion 11a2 of the outer tube body 11, and is integrally formed with the upper portion 11a2 of the outer tube body 11 and formed with 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. 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. In addition, the fixing of the lower cover 12 of the outer tube body 11 can also be performed by pressing the upper cover 13 of the upper cover body 13 with the outer tube body 11 fixed by -17-201236633, or the lower cover body 12 can be directly It is 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 2 2 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 21 has a trunk portion 2 1 a and another end portion 21c which is larger than the trunk portion 21a. 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 21 a2 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 10 and the inner tube 20. The second suction tool 6 and the first suction tool 7' are attached to the other end portion 21c. The base 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 is covered with an upper portion 21cl of the other end portion 21c of the inner tube body 21. That is, the base member 22 is the other end portion 21c of the inner tube main body 21, and covers the upper end portion 21cl of the other end portion -18-201236633 21c in the range of a part of the entire circumference of the outer peripheral surface. A rocking support portion 22a and an energization terminal support portion 22b are formed. Further, the trunk portion 22a along the inner tube body 21 is integrally provided at one end portion of the base member 22, and the elongated plate-shaped sliding portion 25° is provided toward the one end portion, and the operation button 24 is swayed. Shake it to 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 space 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' is attached to the attachment portion of the first suction device 7 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 20 of the extension tube 5 by the locking portion. Further, when the detachment is performed, the button portion 24b of the operation button 24 is pressed to release the engagement of the hook portion 24a. A metal electric terminal 27 is attached to the energization terminal support portion 22b of the base member 22. Further, at one end portion of the sliding portion 25, as shown in Fig. 9 (b) and (c), one end portion C2 of the flat cable c is connected (see Fig. 9 (b) (c)), and the flat cable C is The one end portion C2 and the energizing terminal 27 -19-201236633 are electrically connected by a conductive wire (not shown). The cover member 23 is made of an insulating material such as polypropylene or the like. As shown in FIG. 5, the lid member 23 is engaged with the lower edge 23c, 23c in the groove portion 21c3'21c3 provided in the upper portion 21cl of the other end portion 21c of the inner tube main body 21, and is attached to the other end portion. 21c, an insulated space is formed between the base member 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 a fastening method by ultrasonic welding. Further, the fixing of the lid member 23 may be performed by using other welding, the joining material, or the like, or by using a fastening member such as a screw. Further, the fixing of the base member 22 of the inner tube main body 21 may be performed by pressing the lid member 23 to which the lid member 23 is fixed by the inner tube main body 21, or the base member 22 may be directly fixed. In the inner tube body 21 . The fixing of the base member 22 may be performed by ultrasonic welding, or other welding, bonding or the like may be used, or a fastening member such as a screw may be used. A sliding cover 28 attached to the sliding portion 25 of the base member 22 is integrally formed at the other end of the lid member 23. The slide cover 28 forms a space for accommodating a conductive wire (not shown) between the slide portion 25. Further, an opening portion 23a through which the button portion 24b of the operation button 24 is placed is formed on the upper surface of the lid member 23. The sliding portion 25 and the sliding cover 28 of this type are integrally formed, and as shown in Fig. 8(a), the insertion portion 151b of the supporting member 15 fixed to the other end portion 11c of the outer tube 10 is inserted into the outer tube. The lower body of the body 11 is insulated between -20 and 201236633 between the cover body 12 and the upper cover body 13. Further, as described above, the one end portion C2 (see FIG. 9(b)) of the flat cable C and the energizing terminal 27 (see FIG. 5) are electrically connected via a conductive wire (not shown) disposed on the sliding portion 25. Sexual connection. Thereby, the insulated main body 11 and the inner tube main body 21 are insulated between the energizing terminals 17 and 17 (see FIG. 3) provided at one end of the outer tube 10 and the energizing terminal 27 (see FIG. 5). An electrical connection is formed underneath. Hereinafter, the effects obtained by the above configuration will be described. (1) Since the outer tube main body 11 and the inner tube main body 21 of the extension tube 5 are made of a thermoplastic resin containing carbon fibers, the length of the extension tube 5 can be reduced to ensure rigidity. All or a part of the operation tube 4 (for example, a cylindrical portion other than the grip) is formed of a thermoplastic resin containing carbon fibers, and the weight of the operation tube 4 can be reduced and rigidity can be ensured. Further, by forming a part (for example, a lower cover) of the cleaner body 2 with a thermoplastic resin containing carbon fibers, it is also possible to reduce the weight of the cleaner body 2 and ensure rigidity. (2) The energizing terminals 17 and 17 and the energizing terminals 27 and 27' which are the conductive members disposed in the extension tube 5 are on the lower cover 12 of the insulating resin, on the base member 22, and the extension tube 5 Since the outer tube main body 11 and the inner tube main body 21 are insulated from each other, 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 are not electrically connected. Therefore, since the outer tube body Π and the inner tube body 21 of the extension tube 5 do not have a structure formed of a conductive material, proper insulation with the conductive member - 21 - 201236633 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 as compared with the structure of the entire circumference of the outer circumferential surface of the inner tube main body 21, and the installation area can be reduced. Quantity and miniaturization. (4) The conductive wire W1 as the power supply means for connecting the current-carrying terminals 17, 17 and the flat cable C connected to the conductive wire W1 are disposed on the lower cover 1 2 of the insulating resin, respectively. Appropriate insulation from the outer tube body 1 1 as a conductive member can be ensured, and appropriate power supply to the first suction device 7 can be achieved. (5) The flat cable C is disposed between the lower cover 12 and the upper cover 13 in a space insulated by the outer tube body 1 1 so that good insulation can be maintained. Therefore, it is assumed that the flat cable C is in contact with the human hand or directly in contact with the outer tube main body 11 even if the occurrence of the peeling of the flat cable C occurs in a long period of time. Further, another insulating resin member may be interposed in the inner tube main body 2 1 (corresponding to the so-called inner tube of claim 3), and the flat cable C may be disposed on the insulating resin member. (6) The upper cover 13 is fixed to the outer tube body 11 by the fastening method of the ultrasonic welding, and since the cover member 23 is fixed to the inner tube body 21, the upper cover 13 and the cover member 23 are provided. The fixing is simple and can achieve high-strength fixing. In addition, the degree of completion of the weld is good, and the price of the product is also increased by -22-201236633. (7) Since the outer tube main body n and the inner tube main body 2i are sealed by the elastic and electrically conductive sealing members 15d, 15e, the outer tube main body 11 and the inner tube main body 21 are made to be electrically conductive. The members can be electrostatically discharged by, for example, a discharge means provided in the outer tube body 11. In this way, productivity can be improved and costs can be reduced. Further, even when the outer tube main body u and the inner tube main body 21 are formed of a metal material such as aluminum alloy, by sealing the sealing members 15d and 15e, for example, a discharge means provided on the outer tube main body 1 1 can be used. The static electricity charged in the batteries is appropriately discharged. (8) A signal line (not shown) that communicates with the side of the cleaner body 2 is provided, and the static electricity of the extension tube 5 is discharged to the signal line or the like. The electrostatic discharge can be appropriately performed 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 1 of the extension tube 5 via the operation tube 4' At the time of cleaning, the person who holds the operation tube 4 'discharges the electric discharge of the extension tube 5 to the ground -23-201236633 surface or the like. (9) When the outer tube body Η and the inner tube 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 member made of metal, and a complicated shape or the like can be integrally formed. In addition, since the inner surface of the outer tube main body 11 and the inner tube main body 21 can be smoothed by injection molding, static electricity generated by the collision of dust can be suppressed. Further, the shape of each part 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, etc., and can be attached to a part of the entire circumference of the outer peripheral surface. set up. Further, in the above-described embodiment, the extension pipe 5 is exemplified by the connection of the outer pipe 10 and the inner pipe 20, but the invention is not limited thereto, and may be constituted by one pipe. [2. Extension tube] Next, the material of the outer tube body Π and the inner tube body 21 of the extension tube 5 which is provided in the vacuum cleaner 1 will be described. As described above, the outer tube main body Π 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 is a description of the carbon fiber-containing resin. -24-201236633 (Carbon fiber) The carbon fiber contained in the carbon fiber-containing resin is obtained by a method of high-temperature carbonized fiber such as polyacrylonitrile (PAN) resin or pitch (short fiber). ), usually more than 90% of it consists of carbon. 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 丨〇% by mass or less. The content of the carbon fiber is included in this range, whereby the manufacturing cost of the extension pipe 5 is suppressed, and the weight reduction and the high rigidity of the extension pipe 5 can be improved in a balanced manner. 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 body Π and the inner tube body 21, respectively. In this regard, please refer to Figure 1〇 — 201236633 for details. FIG. 1 is a graph obtained by the review by the inventors of the present invention, and the plate-shaped carbon fiber contains a resin when the content of the carbon fiber is changed in a relationship between the bending strength of the plate-shaped carbon fiber-containing resin. The thickness (corresponding to the difference between the outer diameter and the inner diameter of the extension tube) and the thickness. In Fig. 10, the content in the vicinity of each graph is the content (% by mass) of carbon fiber (CF), 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 suction device. 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 8 6 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, the 〇.9 mm" of the horizontal axis is a small thickness which is possible for injection molding or blow molding. Therefore, when the extension tube is formed by injection molding or blow molding using a plate-like resin, it is extremely important to form a sheet-like resin-formed extension tube to have a thickness of at least 9 mm. As shown in Fig. 1A, when the same thickness is obtained, the carbon fiber content in the carbon fiber-containing resin increases, and the strength (required strength) of the carbon fiber-containing resin increases. However, if the carbon fiber is usually expensive, and the content of the carbon fiber is increased, the manufacturing cost in the carbon fiber-containing resin is increased (the 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 -26-201236633, the specific gravity of polypropylene is 0.9 2 g/cm3, and the specific gravity of polypropylene containing carbon fibers in a ratio of, for example, 10% by mass is 0.95 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 main body 11 and the inner pipe main body 2 1 ), even if only the content of the carbon fiber is increased, the extension pipe 5 cannot be manufactured inexpensively, and the weight is also increase. 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 extension tube 5 is manufactured at a low cost in order to maintain the same thickness, and the content of the carbon fiber is reduced, 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 manufacturing cost reduction (cost reduction) at the time of manufacture is completely achieved; the required strength is generally ensured; and the lightweight extension tube 5' is thought of by the inventors of the present invention. In other words, for example, when a carbon fiber containing a carbon fiber having a ratio of polypropylene and 10% by mass contains a resin, the thickness is exceeded when the strength of the resin constituting the conventional extension tube (the strength of the plate-like resin is 86 MPa) is maintained. When it is about 2 mm, it is heavier than the resin which comprises a conventional extension tube. Therefore, when the content ratio of the carbon fiber is 5% by mass or more, the amount of the material is not less than the previous one (about 2 mm). ) The extension tube can be made lighter than ever. In particular, since it is cylindrical, it is superior in weight (i.e., thin) and high in rigidity as compared with other members constituting the cleaner. A carbon-containing resin having such a carbon fiber content is used, whereby the outer tube body 11 and the inner tube body 21 can be made rectangular, and the difference between the outer diameter and the inner diameter is set to be 1 mm or more and 1.4 mm in the longitudinal direction. In the whole area, the difference is set to a so-called 2 mm or less, lightweight, and high-rigidity extension tube. In addition, the extension tube 5 made of a carbon fiber-containing resin having a carbon fiber content of 5% by mass or more and 15% by mass or less is more effective in fixing the upper lid body 13 and the lid member body by wave-welding, and the carbon fiber content is more If it is increased, it will usually become difficult to connect. However, according to the extension tube 5 contained in the above ratio, the above-described inexpensive, lightweight, and high rigidity can be maintained to more reliably perform the fixing of the upper lid body 13 and the lid member 23 by containing the carbon fibers in the aforementioned ratio in the thermoplastic resin. It is particularly easy to form a profit point by injection molding or blow molding which will be described later. (Thermoplastic Resin) The extension tube 5 is a thermoplastic tree containing the aforementioned carbon fibers. In the above description of the carbon fiber, although the resin is thinner in the same process as the thermoplastic resin, the extension tube is easily broken, and the effect of the tube is extended to the middle portion or less, and the ratio is higher than in the past by the super sound 23 . More ultrasonic melting with carbon fiber, and also. Further, in the case of the resin having the extension tube, polypropylene -28-201236633 is a specific example, but 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, AB S (Acrylonitrile - Butadiene) resin) may be used, and the physical properties thereof may be provided as a function of the extension tube. Feel free to. However, as the thermoplastic resin forming the elongated tube 5 is lightweight and inexpensive, and it is easy to manufacture and use, it is preferable to use polypropylene as in the above specific examples. 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 U 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 the same can be manufactured, the method of manufacturing the inner tube main body 21 will be described below as an example. Further, for the sake of simplification of illustration, the shape of the inner tube main body 2 1 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, there is no particular limitation on the specific method of the method -29-201236633. Hereinafter, the method of injection molding will be specifically described, but the method of injection molding is not limited to the following. For example, as shown in Fig. i!, a metal mold (upper mold 100 and lower mold 101) capable of forming a cylindrical shape (i.e., a cylindrical outer shape): and a core 1 capable of forming a cylindrical inner diameter 02 is combined to form a single. Then, the gaps generated when these are combined are passed through the through holes 102b of the flange 102a formed by forming the body with the core 102, and the carbon fibers containing the heated and melted resin are contained (ie, extruded). . Thereafter, the metal molds 1 and 101 and the core 102 are cooled and removed, and the burrs are cut as necessary to form the inner tube body 21. The temperature of the metal molds 100, 101 and the core 102 when the carbon fiber after the melting of the carbon fiber is contained is arbitrary. However, when the carbon fiber contains a temperature lower than the melting point of the resin, the carbon fiber-containing resin is solidified, so that it is set to be higher than this. The temperature at which the melting point is higher. In addition, since the injection load at the time of injection differs depending on the temperature and composition of the carbon fiber-containing resin, it cannot be clarified, but it can be set, for example, to about 200 MPa. In the injection molding machine described in, for example, Japanese Laid-Open Patent Publication No. 2010-110905, and the like. The inner tube body 2 is formed by injection molding, whereby the inner shape can be accurately formed in addition to the outer shape of the inner tube body 21, and the inner wall of the inner tube body 21 can be made smooth. . Therefore, the air can reduce the internal resistance of the air when the inside of the inner tube body 21 is used when the suction device is used, and the efficiency of the electric blower equipped with the vacuum cleaner can be further improved. 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 molds 200 and 201 which can form the outer shape of the cylindrical shape shown in Fig. 12 are combined, and the molds 202 made of the carbon fiber-containing resin are extruded inside the molds 200 and 201. Thereafter, high pressure air is injected into the interior of the pair 202 to push the parison 202 onto the inner surfaces of the molds 200, 201. Then, the parison 202 is solidified by cooling the metal molds 200, 201. 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, as a specific apparatus for performing the blow molding, a blow molding machine described in, for example, Japanese Laid-Open Patent Publication No. Hei 11-277617 can be used. The inner tube main body 21 is formed by blow molding, whereby the inner tube main body 2 can be formed without using a core, so that the manufacturing process such as the extraction of the core - 31 - 201236633 can be simplified. Further, since the entire inner tube body 21 can be formed at one time, it is possible to simplify the manufacturing process from this viewpoint. 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 main body 11 and the inner tube main 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, to form 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 showing a state in which the extension tube is shortened, and (b) is a side view of the state in which the extension tube is extended from -32 to 201236633. (c) is a bottom view showing a state in which the extension tube is extended. 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. Fig. 4(a) is an exploded perspective view, and Fig. 4(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. (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' (b) is an enlarged longitudinal end view of the other end portion of the extension pipe. 8] (a) is a perspective view of an extension tube in a state after contraction, and (b) is a perspective view of an extension tube partially seeing the upper lid body and the lid member. Fig. 9 (a) is a perspective view showing an arrangement relationship between a lower cover and a sliding portion, (b) is a plan view showing a flat cable in a state of a contracted extension tube, and (c) is a 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. 1 1] A diagram showing a state in which an extension tube is manufactured 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] -33- 201236633 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 〇: Outer tube 1 1 : outer tube body 1 2 : lower cover body (insulating resin member) 1 7 : energization terminal (conductive member) 13: upper cover body (cover member) 1 5 : support member 1 5 d, 1 5 e : Sealing members 17, 27: energizing terminal 20: inner tube 2 1 : inner tube main body 22: base member (insulating resin member) 2 3 : cover member C: flat cable (power supply means) T1 : air passage T2 : Ventilation road W1: Conductive wire (power supply means) -34-