201040039 六、發明說明： 【發明所屬之技術領域】 本發明首先係有關於一種例如安裝於吸塵器上的滾輪，該 滾輪包括具有輪轂的滾輪體及一體成型式的滾輪軸，其中， 該滾輪軸貫穿輪轂且在輪轂兩端具有無支撐式的突出部，而 其中一個突出部為穿插部且配有螺紋。 本發明此外亦有關於一種可藉由滾輪移動的物體，其中， 該滾輪具有被滾輪轴所貫穿的輪轂，且該滾輪轴係透過突出 於輪轂兩端之外的突出部以固定於該物體上的諸固定件 中〇 【先前技術】 上述類型之滾輪及可藉由滾輪移動的物體已為吾人所 知，例如，應用於吸塵器，特別是，家用吸塵器的滾輪。其 中，滾輪例如布置於在待清潔地面上移動的吸嘴區域内，或 視情況設計用於可在地面移動的吸塵器殼體。此外，此種滚 輪亦可與吸塵器結合應用於可自行移動的吸塵設備或清掃 機，即，所謂的吸塵及/或清掃機器人。此種滾輪之輪轂被 較佳為採用實心設計的滾輪軸所貫穿，而此滾輪軸係在安裝 完畢狀態下兩端突出於滾輪之外，並形成突出部。該等突出 部在支撐滾輪的同時固定於設備侧固定件中。此外，習知技 術中亦有將滚輪軸設計為插入軸者，此種插入轴藉由其突出 部僅憑摩擦力作用，固定於相應的固定件中。此外，亦有一 099106395 4 201040039 端配設外螺紋以與固定件側之反向螺紋貫現螺紋嚙合的習 知滚輪軸。 【發明内容】 有鑒於上述先前技術，本發明之技術課題在於提供一種上 述類型之滾輪，及可藉由滚輪移動的物體，就滚輪於物體上 的固定情況而言，二者運行更可靠，操作亦更方便。201040039 VI. Description of the Invention: [Technical Field] The present invention relates first to a roller mounted on a vacuum cleaner, for example, a roller body having a hub and an integrally formed roller shaft, wherein the roller shaft runs through The hub has an unsupported projection at both ends of the hub, and one of the projections is a piercing portion and is threaded. The invention also relates to an object movable by a roller, wherein the roller has a hub penetrated by the roller shaft, and the roller shaft is fixed to the object through a protrusion protruding beyond the two ends of the hub. The prior art of the above-mentioned type of roller and the object that can be moved by the roller are known, for example, to a vacuum cleaner, in particular, a roller of a household vacuum cleaner. The rollers are, for example, arranged in the area of the nozzle that moves on the floor to be cleaned, or as the case is designed for a vacuum cleaner housing that can be moved on the ground. In addition, such a roller can also be used in conjunction with a vacuum cleaner for a self-moving vacuuming device or sweeper, a so-called vacuuming and/or cleaning robot. The wheel hub of such a roller is preferably penetrated by a solidly designed roller shaft which, in the assembled state, protrudes beyond the roller at both ends and forms a projection. The projections are fixed in the device side fixing member while supporting the roller. In addition, in the prior art, the roller shaft is also designed to be inserted into the shaft, and the insertion shaft is fixed in the corresponding fixing member by the protruding portion only by the frictional force. In addition, there is a conventional roller shaft with a 099106395 4 201040039 end that is externally threaded to engage the reverse thread of the fastener side. SUMMARY OF THE INVENTION In view of the foregoing prior art, the technical problem of the present invention is to provide a roller of the above type, and an object that can be moved by a roller, in terms of fixing the roller on the object, the two operations are more reliable and operate. It is also more convenient.
Ο 在所述類型之滾輪方面’此課通首先且基本上稭由申請專 利範圍第1項之標的而達成’其設計如下：其另一個突出部 亦配設有螺紋，而且，滚輪軸在一個與輪轂共同作用的共同 作用區内為表面平滑。在可藉由滾輪移動的物體方面，此课 題藉由申請專利範圍第2項之標的而達成，其設計如下：滚 輪軸兩端均以螺旋連接方式固定於諸固定件中，其中，設置 於滾輪軸上的螺紋區係嵌入形成於該等固定件内部的反向 螺紋。藉由此種設計方案，玎於滾輪之軸向兩端實現滾輪軸 之力配合且形狀配合的固定。透過滾輪軸而實現的滾輪固定 為可逆的，其中，藉由如此設計的滾輪轴，亦可實現對替換 滾輪的固定。位於該等設有螺紋的突出部之間的共同作用时 不設螺紋，而為表面平滑，用於與滾輪輪轂共同作用。、穿= 軸端部則相應地設有較佳為同向的單獨螺紋段。 "" 下文（亦包括附圖描述)將主要從申請專利範圍第】工 或另一申請專利範圍第2項之標的或其他請求項之特徵/ 幾方面，對本發明之其他特徵進行說明。然而，此等特徵等 099106395 5 201040039 2可項僅=1?袖㈣1彼心-陶利範圍第 巾請專·圍之單項魏，抑或作為獨立特徵 而產生重要意義。 滚輪軸在此二健出部上之螺紋可具有姉韻。但，根 才-種較佳方案，此該等突出部之螺紋直徑不等。若如此， 則分配給穿插部的螺紋直純佳為小於分配給另—個突出 部的螺紋。在此情況τ，諸固定件中與滾輪軸敎共同作用 的螺紋區亦相應地採用不同直徑。在採用上述較佳布置方式 之情況下，螺紋直徑相對較小的穿插部，可穿過在插入方1 上形成於滚輪軸前方_定件區，而不與該螺紋區發生 螺紋响合，此為便於操作的解決方案。在鑽頭側螺紋區穿過 滾輪輪穀並嵌人固定件的相應螺紋區後方旋轉滾輪轴，以固 定該滾輪軸。根據另-較佳方案，形成於穿插部上的螺紋之 外徑（標稱直徑’ nominal diameter)等於或小於另一個突出部 上位於該螺紋相對側的螺紋之内徑（螺紋根徑，care diameter)。 滾輪軸上沿軸向間隔一定距離布置的二個螺紋，特定言 之’在直徑不同之情況下，與諸㈣件中專門設置的相紅 向螺紋發生共同作用’故’此二螺蚊可採用不同設計，例如， 設計為單線或多線螺紋、央角螺紋或梯形螺紋，此外，其螺 距亦可不同。根據-種較佳方案，此二螺紋之螺距相同，即， 升角相等，此外，其螺紋類型亦相同。根據另—較佳方案， 099106395 6 201040039 該升角較佳為5。至15。’更佳為8。至12。，後者應用於單線 右旋螺紋則更佳。 根據另一方便製造之設計方案，諸固定件中的反向螺紋係 自行產生於滾輪軸之擰入過程。為此，該等螺紋係為自攻螺 紋’採用（例如)DIN 7998-4所規定之螺紋線。如此便無需在 δ又備側固疋件中單獨設置内螺紋，此點特別有利於以塑膠射Ο In the case of the type of roller, this class is first and basically strawd by the subject matter of the first paragraph of the patent application. The design is as follows: the other protrusion is also equipped with a thread, and the roller shaft is in one The interaction zone that interacts with the hub is smooth on the surface. In the aspect of the object that can be moved by the roller, the subject is achieved by applying the object of the second item of the patent scope, and the design is as follows: the two ends of the roller shaft are fixed in the fixing members by screw connection, wherein The threaded regions on the roller shaft are embedded with reverse threads formed inside the fasteners. With this design, the force fit of the roller shaft and the form fit are achieved at the axial ends of the roller. The roller that is realized by the roller shaft is fixed in a reversible manner, and the roller shaft thus designed can also be used for fixing the replacement roller. The interaction between the threaded projections is unthreaded and the surface is smooth for interaction with the roller hub. The wear-shaft end is correspondingly provided with separate thread segments which are preferably in the same direction. "" The following (including the description of the drawings) will further illustrate other features of the present invention mainly from the scope of the patent application or the features/ aspects of the second or other claims. However, these characteristics, etc. 099106395 5 201040039 2 can only be 1 = 1 sleeve (four) 1 heart - the scope of the Taoli range, please use the single item Wei, or as an independent feature to produce important significance. The thread of the roller shaft on the two health parts can have a rhyme. However, it is a preferred solution that the diameters of the projections of the projections are not equal. If so, the thread assigned to the insertion portion is preferably less than the thread assigned to the other projection. In this case τ, the threaded regions of the fixing members which interact with the roller shaft 亦 are correspondingly of different diameters. In the case of the above preferred arrangement, the insertion portion having a relatively small thread diameter can be formed through the insertion side 1 in the front portion of the roller shaft without a threaded engagement with the threaded portion. A solution for ease of operation. The roller shaft is fixed by rotating the roller shaft behind the corresponding threaded region of the drill-side threaded zone through the roller valley and the inset fastener. According to another preferred embodiment, the outer diameter of the thread formed on the insertion portion (nominal diameter 'nominal diameter) is equal to or smaller than the inner diameter of the thread on the opposite side of the other projection on the opposite side of the thread (thread diameter, care diameter ). Two threads arranged on the roller shaft at a certain distance in the axial direction, in particular, in the case of different diameters, the phase-to-threads specially arranged in the (four) pieces interact together. Different designs, for example, are designed as single or multi-thread threads, central or trapezoidal threads, and in addition, the pitch can be different. According to a preferred embodiment, the pitches of the two threads are the same, i.e., the angle of elevation is equal, and in addition, the type of thread is the same. According to another preferred embodiment, 099106395 6 201040039 preferably has an elevation angle of 5. To 15. 'Better than 8. To 12. The latter is better for single-line right-handed threads. According to another design that is convenient to manufacture, the reverse threads in the fasteners are self-generated from the screwing process of the roller shaft. For this purpose, the threads are self-tapping threads' using, for example, the thread specified in DIN 7998-4. In this way, it is not necessary to separately set the internal thread in the δ side-side fixing member, which is particularly advantageous for plastic injection.
出成型法製成的固定件。首次使用該滾輪之前，須藉由其螺 紋將滾輪軸擰入相應的固定件中，而滚輪軸於此過程中才 地自行開出反向螺紋，該反向螺紋此後亦可用柃其 應 里系方走$ 程(拆卸滾輪及重新固定所更換的新滚輪” ° 滾輪之見度大於其垂直高度，其軸向長度相應地大於 徑，故，該滾輪外形總體而言至少近似桶狀。由 、直 根辕另 一較佳方案，輪轂沿軸向觀察，其兩端均突出於滾動 、 =外。滚輪之軸向滾動面寬度相應地小於滚輪之與滾輪=域 平π共同作用區共同作用的輪轂區，根據另一較隹方索之 輪以其整體呈桶狀之滾動面區域為出發點，其相辦於'》、後 線而言的轴向兩端呈錐形，構成朝自由端方向延伸二動料 端段。 "輪轂束 為了便於操作，其中一個突出部配有螺絲頭，而讀如 較佳為滾熟之位於穿插部相對側的突出部，更:出部 徑相對較大的突出部。螺絲頭可為六角 嫘絲頭。作為越、文直 案，螺絲頭可具有槽形、十字形工具孔，或六角形^代方 099106395 7 201040039 的工具孔。 滾輪軸較佳為鋼軸，較佳由不鏽鋼構成，如此可提高其耐 磨性、穩定性及耐蝕性。僅需少量組件即可固定滾輪於物體 或設備上，以便於操作。此外，所選用之結構成本低廉。由 於滾輪兩端均以力配合且形狀配合方式實現固定，故，滾輪 軸之二個突出部不存在間隙。安裝及拆卸均透過習知的螺旋 運動而實現。 【實施方式】 下文將藉由僅展示二實施例的附圖對本發明進行詳細說 明。 首先，參照圖1對一個吸塵器2之形式（特別是家用吸塵 器）的可移動物體1進行展示與描述，該物體1為手持式帶 柄設備。該物體首先具有一個基本設備3，該基本設備3包 括一個用於抽風機的電動馬達。基本設備3上裝有用於容置 灰塵的集塵盒4。該集塵盒較佳為内含濾塵袋。 透過電纜5，對整合於基本設備3中的抽風機供電。 基本設備3另具有在集塵盒4區域内延伸的鵝頸狀附屬 部。該附屬部在其自由端區域内形成一個用於固定吸塵器2 之手柄6的插孔。手柄6配設有操縱把手7，該操縱把手7 則具一個滑動開關形式的拇指操縱式調節單元，藉由該滑動 開關，可對安裝於基本設備3中的抽風機進行功率調節。 為了實現地面處理功能，基本設備3與一個設計為附件的 099106395 8 201040039 地面處理設備8，以符合流體學及電學要求之方式相連。 地面處理設備8具有殼體9及管接頭10。被殼體9所遮 蓋的吸入通道，自管接頭10延伸至個吸氣室形式的處理室 • 中。該處理室位於遠離管接頭10的端面區域内，且其延伸 範圍幾乎覆蓋整個殼體寬度。 地面處理設備8之被殼體9所遮蓋的底盤11具有底盤底 部12。該底盤底部以與待處理地面13之間保持一定垂直距 0 離之方式進行延伸。底盤底部12之此種延伸，於吸嘴區域 内則相應地中斷。 在吸嘴與地面處理設備8之前緣14間，布置有兩個用於 將地面處理設備8支承在地面13上的滾輪15，其滾動轴線 X平行於前緣14而定向。諸滚輪15以可繞著滚動軸線X自 由旋轉的方式固定於底盤底部12之殼形的拱起16中。 每個滾輪15首先均具有從滾輪軸向延伸方向看來位於中 〇 央的滚動面區域17，而該滾動面區域17轴向兩端各與一個 朝滚動軸線X方向呈錐形一端逐漸變細的輪轂段18相連。 輪轂段18及滾動面區段17係用單一材料製成的一體成型式 塑膠射出成型件。如此設計之滾輪15具有約兩倍於其直徑 (高度d)的轴向長度（寬度e)，且被軸向鑽孔19所貫穿，而 該軸向鑽孔19之二個末端均與輪轂段18連通。如此設計之 滾輪體21，於整個軸向長度上將軸向鑽孔19包圍的區域構 成為輪毅20。 099106395 9 201040039 滾動面區段17及二個輪轂段18所構成的滾輪體21由滾 輪軸22所固定，而該滾輪軸22係嵌入底盤底部12上對應 於滾輪體21之軸向末端而設置的固定件23内。此等固定件 23具有相應地平行於地面而定向的鑽孔24及，該等鑽孔 係用於容置滾輪軸22之沿軸向突出於滾輪體21之外的部 分。諸固定件23係藉由（例如）塑膠噴塗法用硬塑膠製成。 沿軸向被覆蓋的鑽孔24及25直徑不同，其中，鑽孔24 直控大於齡25，且在其雜於滾健21或絲底部側棋 起16的鑽孔末端，具有直徑更大的螺絲頭容置區％。 滾輪軸22由不鏞鋼製成，且具有一個用於與轴向鑽孔 及滾輪體21之輪轂2G共同作用的平滑的共同作用區… 該共同作用區27兩端各連接突出部28及29。 一共同作㈣27就其長度而言至少大體上呈圓柱形，在所 示實施例中’共同作用區27略呈錐形，且自突出部Μ朝突 出部29方向逐漸變細’其中，共同作用區27沿其長度的直 徑縮小範圍約為共同作用區27之最大直徑的五十分之—至 一百分之一。 突出部29更形成有—個穿插部32 如圖5所不，穿插部側的突出冑29之螺紋31之外徑b， 小於另一個突出部28之螺紋3〇之外徑a。此外，螺紋31 之外控b亦小於另—螺紋3()之螺紋根徑。在所示實施例中， 099106395 10 201040039 牙插4側上设有外徑b為3職的螺紋3i，相對的突出部 又有外4工a為3.5 mm的螺、紋30。共同作用區27之最 f直“與突出部28上直徑較大的螺紋3G之螺紋根徑相 • 等。 此外，一個螺紋3〇及31均設計為同向的單線右旋螺紋， 其螺距亦相等。在所示實施例中，螺紋3G及31之升角約為 10。。 〇 此外’二個螺紋3〇及31均設計為採用如DIN 7998_4所 規定螺旋線的自攻螺紋。 設有敎3G的突㈣28在其遠離於共_用區27的自 由端上配設有螺絲頭33。該螺絲頭具一個供六角頭螺絲起 子插入的軸向工具孔34。 在為物體1或地面處理設備8首次安裝滚輪15的過程 中，先將滾輪軸22之穿插部32穿過插入方向上的第一個固 Ο 疋件23中直徑較遠穿插部為大的鑽孔24，接著，穿過滾輪 體之軸向鑽孔19以固定滾輪15(參見圖7)。在設有螺紋31 的穿插部32嵌入於沿著插入方向位於滾輪體21後面的固定 件23之鑽孔25的同時，將突出部28之靠近螺絲頭33的螺 紋30插入固定件23之鑽孔24中，隨後，藉由工具對螺絲 頭33施加作用力以產生螺旋運動，滾輪軸22或其螺紋、 31透過該螺旋運動而自行切入鑽孔壁，從而於固定件23令 形成相應的反向螺紋35。 099106395 11 201040039 藉由以螺旋固定方式將滾輪軸22兩端固定，可實現滾輪 軸之形狀配合且力配合的固定。相應地回擰滾輪軸22，可 將此連接解除，鑽孔24及25中已開出的反向螺紋35隨後 便可用於下一次的滾輪固定。 根據圖6所示的替代設計方案，具有直徑相對較小的螺紋 31的突出部29之自由端可配設鑽頭36。此種滚輪軸22尤 其可與自動安裝機結合使用，其中，為物體1首次安裝滾輪 15時，先於固定件23中鑽出穿插方向上最後的鑽孔25，隨 後，藉由螺紋31開出反向螺紋35。 所有已揭示特徵（自身即）為發明本質所在。故本申請案之 揭示内容亦包含相關/所附優先權文件所揭示之全部内容， 該等文件所述之特徵亦一併納入本申請案之申請專利範圍。 【圖式簡單說明】 圖1為包括地面處理附件的吸塵器之立體透視圖，該附件 係藉由滾輪支承在待清潔地面上。 圖2為沿圖1中切割面II所截取之放大剖視圖，而此切 割面係有關於固定在該附件中的滾輪。 圖3為滾輪軸之細部立體透視圖。 圖4為滚輪轴之另一立體透視圖。 圖5為滚輪軸之視圖。 圖6為與圖5相符的視圖，但係關於該滾輪軸之一種替代 方案。 099106395 12 201040039 圖7為如圖2之剖面圖，其係為將滚輪首次固定於設備側 固定件上的狀態圖。 圖8為圖7之後I買狀悲不意圖。 【主要元件符號說明】A fixing member made by a molding method. Before using the roller for the first time, the roller shaft must be screwed into the corresponding fixing member by the thread, and the roller shaft can automatically open the reverse thread during the process. The reverse thread can also be used in the following. The side of the process (removing the roller and re-fixing the replaced new roller) ° The visibility of the roller is greater than its vertical height, and its axial length is correspondingly larger than the diameter. Therefore, the overall shape of the roller is at least approximately barrel-shaped. Another preferred embodiment of the straight root raft, the hub is viewed in the axial direction, both ends of which protrude from the rolling, = outer. The width of the axial rolling surface of the roller is correspondingly smaller than the interaction of the roller with the roller=domain π interaction zone. The hub area is based on the other rolling wheel surface of the wheel, and the rolling surface area of the whole barrel is taken as the starting point, and the axial ends of the '' and the rear line are tapered to form the direction toward the free end. Extending the end of the two-moving material. "Wheel bundle for easy operation, one of the protrusions is equipped with a screw head, and the read is preferably a protruding portion on the opposite side of the insertion portion, and the outlet diameter is relatively large. Protruding part It can be a hexagonal wire head. As a case, the screw head can have a groove shape, a cross-shaped tool hole, or a tool hole of a hexagonal type 099106395 7 201040039. The roller shaft is preferably a steel shaft, preferably Made of stainless steel, which improves the wear resistance, stability and corrosion resistance. Only a small number of components can be used to fix the roller on the object or equipment for easy operation. In addition, the selected structure is low in cost. The force fit and the form fit are fixed, so that there is no gap between the two protrusions of the roller shaft. The installation and disassembly are realized by a conventional spiral motion. [Embodiment] Hereinafter, only the attachment of the second embodiment will be shown. The invention is described in detail with reference to Figure 1. First, a movable object 1 in the form of a vacuum cleaner 2, in particular a household vacuum cleaner, is shown and described with reference to Figure 1, which is a hand-held handle device. The object first has a basic The basic device 3 comprises an electric motor for the exhaust fan, and the basic device 3 is provided with a dust box 4 for accommodating dust. Preferably, the dust filter bag is included. The air blower integrated in the basic device 3 is supplied through the cable 5. The basic device 3 further has a gooseneck-shaped appendage extending in the region of the dust box 4. The appendage is at its free end. An insertion hole for fixing the handle 6 of the vacuum cleaner 2 is formed in the area. The handle 6 is provided with a manipulation handle 7, which has a thumb-operated adjustment unit in the form of a slide switch, by means of which the slide switch can be The air blower installed in the basic equipment 3 performs power adjustment. In order to realize the ground processing function, the basic equipment 3 and a 099106395 8 201040039 ground processing equipment 8 designed as accessories are connected in a manner compatible with fluidics and electrical requirements. 8 has a housing 9 and a pipe joint 10. The suction passage covered by the casing 9 extends from the pipe joint 10 to a processing chamber in the form of a suction chamber. The processing chamber is located in the area of the end face remote from the pipe joint 10 and extends over almost the entire width of the casing. The chassis 11 of the floor treatment apparatus 8 covered by the casing 9 has a chassis bottom portion 12. The bottom of the chassis extends in a manner that maintains a certain vertical distance from the floor 13 to be treated. This extension of the bottom portion 12 of the chassis is correspondingly interrupted in the region of the nozzle. Between the nozzle and the leading edge 14 of the surface treatment device 8, two rollers 15 are provided for supporting the surface treatment device 8 on the floor 13, the rolling axis X of which is oriented parallel to the leading edge 14. The rollers 15 are fixed to the shell-shaped arches 16 of the bottom portion 12 of the chassis in such a manner as to be freely rotatable about the rolling axis X. Each of the rollers 15 first has a rolling surface area 17 which appears in the center of the roller in the axial direction, and the rolling surface area 17 has an axial end and a tapered end toward the rolling axis X. The tapered hub segments 18 are connected. The hub section 18 and the rolling surface section 17 are integrally formed plastic injection molded parts made of a single material. The roller 15 thus designed has an axial length (width e) about twice its diameter (height d) and is penetrated by the axial bore 19, and both ends of the axial bore 19 are combined with the hub section 18 connected. The roller body 21 thus designed constitutes a region 20 surrounded by the axial bore 19 over the entire axial length. 099106395 9 201040039 The roller body 21 formed by the rolling surface section 17 and the two hub sections 18 is fixed by the roller shaft 22, and the roller shaft 22 is embedded in the bottom portion 12 of the chassis corresponding to the axial end of the roller body 21. Inside the fixing member 23. These fixing members 23 have bores 24 oriented correspondingly parallel to the ground and are used to accommodate portions of the roller shaft 22 that protrude axially beyond the roller body 21. The fixing members 23 are made of hard plastic by, for example, plastic spraying. The bores 24 and 25 that are covered in the axial direction are of different diameters, wherein the bore 24 is directly controlled to be larger than the age of 25, and has a larger diameter at the end of the borehole that is miscellaneous to the roll 21 or the bottom side of the wire. Screw head housing area %. The roller shaft 22 is made of stainless steel and has a smooth cooperating zone for cooperating with the axial bore and the hub 2G of the roller body 21. The cooperating zone 27 has connecting projections 28 and 29 at each end. . A common work (four) 27 is at least substantially cylindrical in terms of its length, and in the illustrated embodiment the 'co-acting zone 27 is slightly tapered and tapers from the projection toward the projection 29'. The diameter of the zone 27 along its length is reduced by about five tenths to one hundredth of the maximum diameter of the coaction zone 27. The protruding portion 29 is further formed with a plurality of insertion portions 32. As shown in Fig. 5, the outer diameter b of the thread 31 of the protruding jaw 29 on the insertion portion side is smaller than the outer diameter a of the thread 3' of the other projection portion 28. In addition, the external control b of the thread 31 is also smaller than the thread diameter of the other thread 3 (). In the illustrated embodiment, 099106395 10 201040039 is provided with a thread 3i having an outer diameter b of 3 positions on the side of the tooth insert 4, and the opposite projection has a screw and groove 30 of 3.5 mm. The most straight of the interaction zone 27 is "corresponding to the thread diameter of the thread 3G having a larger diameter on the protrusion 28. etc. In addition, one thread 3〇 and 31 are designed as a single-line right-handed thread in the same direction, and the pitch thereof is also In the illustrated embodiment, the angles of the threads 3G and 31 are about 10. 〇 In addition, the two threads 3 and 31 are designed to be self-tapping threads with a helix as specified in DIN 7998_4. The 3G projection (four) 28 is provided with a screw head 33 on its free end remote from the common area 27. The screw head has an axial tool hole 34 for the hexagonal screwdriver to be inserted. 8 During the first installation of the roller 15, the insertion portion 32 of the roller shaft 22 is first passed through the borehole 24 of the first solid jaw member 23 in the insertion direction which is larger in diameter than the insertion portion, and then passes through the roller. The axial bore 19 of the body is fixed to the roller 15 (see Fig. 7). The insertion portion 32 provided with the thread 31 is embedded in the bore 25 of the fixing member 23 located behind the roller body 21 in the insertion direction, and will protrude The thread 30 of the portion 28 adjacent to the screw head 33 is inserted into the bore 24 of the fixture 23, and subsequently A force is applied to the screw head 33 by the tool to generate a helical motion, and the roller shaft 22 or its thread 31 is self-cut into the borehole wall by the helical motion, thereby forming a corresponding reverse thread 35 on the fixing member 23. 099106395 11 201040039 By fixing the two ends of the roller shaft 22 by screw fixing, the shape matching and force matching of the roller shaft can be achieved. Accordingly, the roller shaft 22 can be retracted to release the connection, and the holes 24 and 25 are opened. The reverse thread 35 can then be used for the next roller fixing. According to an alternative embodiment shown in Fig. 6, the free end of the projection 29 having a relatively small diameter thread 31 can be provided with a drill bit 36. In particular, the axle 22 can be used in combination with an automatic mounting machine, wherein when the roller 15 is first mounted on the object 1, the last drilling hole 25 in the insertion direction is drilled before the fixing member 23, and then the reverse thread is opened by the thread 31. 35. All of the disclosed features (in their own right) are the essence of the invention. The disclosure of this application also contains all the contents disclosed in the relevant/attached priority documents. Also included in the scope of the patent application of this application. [Simplified illustration of the drawings] Fig. 1 is a perspective perspective view of a vacuum cleaner including a floor treatment attachment supported by a roller on a floor to be cleaned. 1 is an enlarged cross-sectional view of the cutting surface II, and the cutting surface is attached to the roller fixed in the attachment. Fig. 3 is a perspective perspective view of the roller shaft. Fig. 4 is another perspective view of the roller shaft. 5 is a view of the roller shaft. Fig. 6 is a view corresponding to Fig. 5, but is an alternative to the roller shaft. 099106395 12 201040039 Fig. 7 is a sectional view of Fig. 2, which is a first time fixing the roller to the device State diagram on the side fixture. Figure 8 is a sorrowful intention of I bought after Figure 7. [Main component symbol description]
1 (移動）物體 2 吸塵器 3 基本設備 4 集塵盒 5 電纜 6 手柄 7 操縱把手 8 地面處理設備 9 殼體 10 管接頭 11 底盤 12 底盤底部 13 地面 14 (地面處理設備）前緣 15 滾輪 16 (殼形)拱起 17 滾動面區域；滾動面區段 18 輪轂段 099106395 13 201040039 19 轴向鑽孔 20 輪轂 21 滚輪體 22 滾輪軸 23 固定件 24 鑽孔 25 鑽孔 26 螺絲頭容置區 27 共同作用區 28 突出部 29 突出部 30 螺紋（區） 31 螺紋（區） 32 穿插部 33 螺絲頭 34 工具孔 35 反向螺紋 36 鑽頭 a 外徑 b 外徑 c 外徑 d 高度 099106395 14 2010400391 (moving) object 2 vacuum cleaner 3 basic equipment 4 dust box 5 cable 6 handle 7 operating handle 8 ground handling equipment 9 housing 10 pipe joint 11 chassis 12 chassis bottom 13 floor 14 (ground processing equipment) leading edge 15 roller 16 ( Shell-shaped) arching 17 rolling surface area; rolling surface section 18 hub section 099106395 13 201040039 19 axial drilling 20 hub 21 roller body 22 roller shaft 23 fixing member 24 drilling 25 drilling 26 screw head housing area 27 common Action zone 28 Projection 29 Projection 30 Thread (zone) 31 Thread (zone) 32 Insertion 33 Screw head 34 Tool hole 35 Reverse thread 36 Bit a Outer diameter b Outer diameter c Outer diameter d Height 099106395 14 201040039
e X 寬度 滚動軸線e X width rolling axis
099106395 15099106395 15