570863 玖、發明說明 (發明說明應敘明：發明所屬之技術領域、先前技術、內容、實施方式及圖式簡單說明) 【發明所屬之技術領域】 本發明係與手工具有關，特別是指一種具有多工作角 度之電動工具殼體。 5【先前技術】 一般電動起子係以一概成直筒狀之外殼内部裝設一馬 達，並由馬達連接一工具，再以亦位於外殼内部之一電源 (電池）驅動該馬達；使用者藉由一設於外殼之開關來控制 馬達的旋轉與旋向，進而驅轉工具進行工作；由於在工作 10 時，環境上會有各種不同的限制，有時作業空間較為狹 窄，或是須特定角度才能進行時，一般之電動起子常會有 無法擺至容易施工之位置來進行工作而造成困擾；因此， 近來有許多具有可彎折之電動工具殼體之設計，如附件公 告第492383號專利案係將電動起子之外殼分成可相對彎 15折之前殼體（1〇)及後殼體（2〇)，請參閱附件第二圖，藉由 一殼體（10)(20)之間，設於後殼體（20)之一定位彈片（61)， 與設於前殼體（10)之一定位座（62)相嵌合，來使得二殼體 (10)(20)可相對固定於預定角度，再由一鎖定鈕(6〇)來控制 定位彈片（61)以固定或放鬆前殼體（10);鎖定鈕(6〇)之作用 20主要在於鎖摯前、後殼體（1〇)(2〇)，使其間之夾角可被固 定，避免使用者在操作該電動起子旋動一螺栓時，因過声 施力於後殼體(2〇)而改變其夾角，影響作業進行。 & 然而，使用者在握持並操作電動起子時，當要折彎前 殼體（10)時，須先推撥鎖定紐(6〇)放鬆定位彈片㈣，接= 0續;人頁（翻翻辭驗鹏，請_搬用續頁） -4- 570863 發明說明續頁 轉動前殼體（ίο)至需要的位置後，再推撥鎖定紐（6〇)固定 定位彈片（61)，使前殼體（10)相對後殼體(20)固定於預定角 度’才能完成彎折之動作；而且利用電動起子工作時，只 要前殼體（10)前端受驅轉之起子與螺栓之間呈妥善之配 合’使用者便不須施以很大的力量去壓制後殼體（20)，所 以鎖定钮（60)之設置顯然多餘，徒然增加操作上之不必要 動作，並增加電動起子之構成零件以及製造成本。 【發明内容】 本發明之主要目的係提供一種具有多工作角度之電動 工具殼體，操作方式較為方便，且成本較低。 為達成前揭目的，本發明之具有多工作角度之電動工 具殼體，包含有：一第一殼體，内部設有〆撓性臂；撓性 考具有一第一面及一位於第一面相反側之第二面，且第一 面與第一殼體内壁面間具有一空間；另外，撓性臂之第二 面上具有一凸塊；一彈性件，係塞設於該空間中而分別與 5亥第一面及該内壁面接觸；一第二殼體，藉一樞軸樞設於 第一殼體上；第二殼體可自一第一位置，依該樞軸中心， 相對第一殼體樞轉至一第二位置，且第二毅體分別位於該 〜位置時，其與第一殼體間夾角不同；第；设體具有二凹 槽，係分別位於第二殼體位於該第一、二位置時，該凸塊 可分別嵌入其中之位置。藉此，即可以較簡便之方式使電 動起子依需要而彎折。 -5- 570863 【實施方式】 兹舉一較佳實施例並配合圖式對本發明之結構及功能 作詳細說明，所用圖式簡要說明如下： 第一圖為本發明一較佳實施例之前視圖； 5 第二圖為本發明一較佳實施例之前視剖視圖； 第三圖為本發明一較佳實施例之作動示意圖；以及 第四圖為本發明一較佳實施例之前視剖祝圖，係顯 示旋轉後之第二殼體。 晴參閱第一及第二圖所示，本發明一較佳實施例之具. 1〇有多工作角度之電動工具殼體，其包含有： 一第一殼體（10)，於本實施例中係由一第一側蓋（11) 及一第二侧蓋（12)所對合組立而成，概呈圓筒狀；於該第 一殼體（10)前端設有一徑向樞軸（13)，後端設有一開口（14) 穿通該第一殼體（10)内部；一電池外蓋（15)覆蓋於該開口 15 (14);第一殼體（10)内部頂面靠近前端位置設有一概呈長 條狀之撓性臂（16);撓性臂（16)—端固設於第一殼體（10)， 而另一端為一自由端，朝第一殼體（1〇)前端延伸；撓性臂 (16)具有一第一面（17)以及一位於第一面（π)相反侧之第二 面（18)(請參閱第三圖）；該第一面（17)朝向第一殼體（10)之 20 頂部與第一殼體（1〇)之内壁面間具有一空間；撓性臂（16) 之第二面（即撓性臂（16)之底面）於自由端向下凸出一概成 圓弧狀之凸塊（19)。 一彈性件（60)，於本實施例中使用橡膠材質，係設於 撓性臂（16)之第一面（即撓性臂（16)之頂面）與第一殼體（10) -6- 570863 發明說ft續頁 内壁間之空間内；彈性件（60)係分別與撓性臂（16)之第一 面及第一殼體（10)之内壁面相接觸。 一第二殼體（20)，於本實施例中係由一第三側蓋（21) 及一第四側蓋（22)所對合組立而成，亦概呈圓筒狀；第二 5 殼體（20)之後端設有一徑向樞孔（23)，前端面設有一中心 穿孔(24);第二殼體(20)之後端頂側設有一定位座（25)，定 位座（25)呈圓弧片體，且其圓心與該樞孔（23)之圓心相 同；定位座（25)之表面沿樞孔(23)軸向設有一第一凹槽（26) 及一第二凹槽（27);第一凹槽（26)較靠近第二殼體（20)頂. 10 測，第二凹槽較為靠近第二殼體(20)之後端；第二殼體(20) 係以其樞孔(23)與第一殼體（1〇)之樞軸（13)樞接，且定位座 (25)表面與第一殼體（10)之撓性臂（16)底面呈相切狀態。 一電源單元(30)，於本實施中為一直流電池組，係由 第一殼體（10)之開口（14)置入該第一殼體（10)内，並由外蓋 15 (15)所覆蓋。 一驅轉裝置（40)，設於第二殼體（20)内，包含有：一 馬達(42)以及受馬達(42)所驅動之一傳動部（44);該傳動部 (44)係位於第二殼體(20)前段，並連接一套筒（46)穿出第二 殼體(2〇)之穿孔(24)，用以承接工具。 20 一開關（50)，設於第一殼體（1〇)底面，係連接電源單 元（3〇)及驅轉裝置（40)，用以控制驅轉裝置（4〇)之馬達（42) 旋轉以及轉向，惟此控制方式係習知技藝，與本案無關， 容不贅述。 请參閱第二圖所示，當第二殼體（2〇)之樞孔（23)樞設 -7- 570863570863 发明 Description of the invention (the description of the invention should state: the technical field, prior art, content, embodiments, and drawings of the invention briefly) [Technical field to which the invention belongs] The present invention relates to hand tools, especially to a Power tool housing with multiple working angles. 5 [Prior art] A general electric screwdriver is equipped with a motor inside a substantially straight casing, and a tool is connected to the motor, and the motor is driven by a power source (battery) also located inside the casing; the user uses a A switch installed in the housing controls the rotation and direction of the motor, and then drives the tool to work. Because at work 10, there are various restrictions on the environment, sometimes the working space is narrow, or it can be carried out at a specific angle. At present, ordinary electric screwdrivers often have troubles that they cannot be placed in an easy-to-construct position to perform work; therefore, there have been many recent designs with bendable power tool housings. For example, the patent case No. 492383 in the Attachment Announced The outer shell of the screwdriver is divided into a front shell (10) and a rear shell (20) which can be bent relative to each other. Please refer to the second picture of the attachment. A shell (10) (20) is arranged between the shells. A positioning spring piece (61) of the body (20) is fitted with a positioning seat (62) provided on the front housing (10), so that the two housings (10) (20) can be relatively fixed at a predetermined angle, Controlled by a lock button (60) Position the elastic piece (61) to fix or relax the front case (10); the function of the locking button (60) is mainly to lock the front and rear cases (10) (20) so that the included angle between them can be fixed To prevent the user from changing the included angle due to excessive force applied to the rear housing (20) when the electric screwdriver rotates a bolt, the operation is affected. & However, when the user holds and operates the electric screwdriver, when they want to bend the front housing (10), they must first push the lock knob (60) to relax the positioning spring ㈣, then = 0 continued; man page (turn I ’m going to test it, please use the continuation page) -4- 570863 Description of the invention Continuing the page Turn the front case (ίο) to the required position, and then push the lock knob (60) to fix the positioning spring (61), so that the front The casing (10) is fixed at a predetermined angle relative to the rear casing (20) to complete the bending action; and when using an electric screwdriver, as long as the screwdriver and the bolt on the front end of the front casing (10) are driven properly, "Matching" users do not need to exert great force to suppress the rear casing (20), so the setting of the lock button (60) is obviously redundant, unnecessary operations in operation are increased in vain, and components of the electric screwdriver are added. And manufacturing costs. SUMMARY OF THE INVENTION The main object of the present invention is to provide a power tool housing with multiple working angles, which is convenient in operation and low in cost. In order to achieve the purpose of the previous disclosure, the electric tool housing with multiple working angles of the present invention includes: a first housing with a flexible arm inside; the flexible test has a first surface and a first surface; The second surface on the opposite side, and a space between the first surface and the inner wall surface of the first housing; in addition, the second surface of the flexible arm has a projection; an elastic member is tethered in the space and It is in contact with the first surface and the inner wall surface of the Haihai respectively; a second casing is pivoted on the first casing by a pivot; the second casing can be opposite from the first position according to the center of the pivot. When the first housing is pivoted to a second position, and the second body is located at the ~ position, the angle between the first housing and the first housing is different; the first; the body has two grooves, which are respectively located in the second housing When in the first and second positions, the bumps can be embedded in the positions respectively. This makes it easier to bend the electric screwdriver as needed. -5- 570863 [Embodiment] The structure and function of the present invention will be described in detail with reference to a preferred embodiment. The diagram used is briefly explained as follows: The first figure is a front view of a preferred embodiment of the present invention; 5 The second diagram is a cross-sectional view before a preferred embodiment of the present invention; the third diagram is a schematic diagram of the operation of a preferred embodiment of the present invention; and the fourth diagram is a front sectional view of a preferred embodiment of the present invention. The second housing after rotation is shown. As shown in the first and second figures, a preferred embodiment of the present invention is shown in Fig. 10. A power tool housing with multiple working angles includes: a first housing (10) in this embodiment. The middle system is formed by a pair of a first side cover (11) and a second side cover (12), and is generally cylindrical. A radial pivot ( 13), an opening (14) is provided at the rear end to pass through the interior of the first casing (10); a battery cover (15) covers the opening 15 (14); the top surface of the interior of the first casing (10) is near the front end A flexible arm (16) is provided at the position; the flexible arm (16)-one end is fixed to the first casing (10), and the other end is a free end toward the first casing (1 〇) the front end extends; the flexible arm (16) has a first surface (17) and a second surface (18) opposite to the first surface (π) (see the third figure); the first surface ( 17) There is a space between the top of the 20 facing the first casing (10) and the inner wall surface of the first casing (10); the second surface of the flexible arm (16) (the bottom surface of the flexible arm (16) ) A convex arc-shaped projection protrudes downward at the free end 19). An elastic member (60), which is made of rubber material in this embodiment, is provided on the first surface of the flexible arm (16) (ie, the top surface of the flexible arm (16)) and the first casing (10)- 6- 570863 Invention said that the space between the inner walls of the ft continuation sheet; the elastic member (60) is in contact with the first surface of the flexible arm (16) and the inner wall surface of the first casing (10), respectively. A second casing (20) is formed by a third side cover (21) and a fourth side cover (22) in the present embodiment, and is also substantially cylindrical; the second 5 The rear end of the casing (20) is provided with a radial pivot hole (23), the front end surface is provided with a central perforation (24); the rear end of the second casing (20) is provided with a positioning seat (25), the positioning seat (25) ) Has a circular arc body, and its center is the same as the center of the pivot hole (23); the surface of the positioning seat (25) is provided with a first groove (26) and a second recess along the axis of the pivot hole (23); The groove (27); the first groove (26) is closer to the top of the second casing (20). 10 measured, the second groove is closer to the rear end of the second casing (20); the second casing (20) is The pivot hole (23) is pivotally connected to the pivot (13) of the first casing (10), and the surface of the positioning seat (25) is in phase with the bottom surface of the flexible arm (16) of the first casing (10). Cut state. A power supply unit (30), which is a DC battery pack in this embodiment, is inserted into the first housing (10) through an opening (14) of the first housing (10), and is covered by an outer cover 15 (15 ). A driving device (40) is provided in the second casing (20) and includes: a motor (42) and a transmission part (44) driven by the motor (42); the transmission part (44) is It is located at the front section of the second casing (20), and is connected with a sleeve (46) to penetrate the perforation (24) of the second casing (20) for receiving tools. 20 A switch (50) is provided on the bottom surface of the first casing (10), and is connected to the power supply unit (30) and the driving device (40) for controlling the motor (42) of the driving device (40). Rotation and steering, but this control method is a known technique and has nothing to do with this case, so I won't go into details. Please refer to the second figure, when the pivot hole (23) of the second housing (20) is pivoted -7- 570863
於第一设體（10)之樞軸（13)，第一殼體（10)與第二殼體（20) 呈一直線時，第二殼體(20)係位於一第一位置；當第二殼 體位於第一位置時，第一殼體（10)内撓性臂（16)之凸塊 (19)嵌入第二殼體（2〇)之第一凹槽（26)内，而設於撓性臂 5 (16)第一面之彈性件(60)則抵住撓性臂（16)之第一面並限制 凸塊（19)往上移動，進而藉由凸塊（19)嵌入第一凹槽（26)來 固疋第一殼體（10)及第二殼體（2〇);當使用者欲使用本發 明之電動起子時，以手握持第一殼體（1〇)外部，藉由按壓 開關（50)即可控制並驅轉第二殼體(2〇)中驅轉裝置(4〇)之馬 10達(42)，進而由馬達(42)帶動設於傳動部（44)套筒（46)之工 具於第二殼體(20)前端旋轉；當使用者要彎折本發明時， 可直接將第二殼體（20)相對第一殼體（3〇)往下扳轉，使第 二殼體（20)位於一第二位置；當第二殼體（2〇)開始轉動 時，第一凹槽（26)係與第二殼體（2〇)同步沿圓弧往下移 15動，而脫離第一殼體（1〇)撓性臂（16)之凸塊（19)，使凸塊 (19)抵於第二殼體（2〇)之定位座（25)表面；撓性臂（16)之凸 塊（19)端受到定位座(25)表面之推抵而使撓性臂（16)之自由 端產生微量往上彎曲，讓撓性臂（16)頂面之彈性件（6〇)受 擠壓而變形；直到第二殼體(20)持續旋轉至第二位置時， 20第二凹槽（27)會與第一殼體（1〇)撓性臂（16)之凸塊（19)相嵌 合，彈性件（60)則以本身之彈性將撓性臂（π)之凸塊（Η)向 下抵壓於第二凹槽（27)内，使第二殼體（2〇)固定於第二位 置；另外，彈性件（60)可依需求選擇不同彈性係數之材 質，以改變不同之固定強度與旋轉緊度；藉此，即可提供 -8- 570863 發明說明®s 使用者操作方便之具有多工作角度之電動工具殼體，且成 本較低。 本發明亦可在第二殼體（20)之定位座（25)表面設置二 個以上之凹槽，以控制電動起子有更多組彎折角度。 -9- 570863When the first housing (10) is pivoted (13), the first housing (10) and the second housing (20) are aligned, the second housing (20) is located in a first position; when the first When the two shells are in the first position, the projection (19) of the flexible arm (16) in the first shell (10) is inserted into the first groove (26) of the second shell (20), and The elastic member (60) on the first surface of the flexible arm 5 (16) is against the first surface of the flexible arm (16) and restricts the protrusion (19) from moving upward, and is then embedded by the protrusion (19). The first groove (26) is used to fix the first casing (10) and the second casing (20); when the user wants to use the electric screwdriver of the present invention, the first casing (10) is held by the hand ) Externally, by pressing the switch (50), the motor 10 (42) of the driving device (40) in the second casing (20) can be controlled and driven, and then the motor (42) is set to drive the transmission. The tool of the sleeve (46) of the part (44) rotates at the front end of the second casing (20); when the user wants to bend the invention, the second casing (20) can be directly opposite the first casing (30). ) Turn down to make the second casing (20) in a second position; when the second casing (20) starts to rotate The first groove (26) is moved 15 times along the arc in synchronization with the second casing (20), and is separated from the projection (19) of the flexible arm (16) of the first casing (10), The bump (19) is made to abut against the surface of the positioning seat (25) of the second housing (20); the end of the bump (19) of the flexible arm (16) is pushed by the surface of the positioning seat (25) to make the flexible The free end of the flexible arm (16) is slightly bent upward, so that the elastic member (60) on the top surface of the flexible arm (16) is squeezed and deformed; until the second housing (20) continues to rotate to the second position At this time, the 20 second groove (27) will be fitted with the projection (19) of the flexible arm (16) of the first casing (10), and the elastic member (60) will use the elasticity of the flexible arm to fit the flexible arm. The projection (Η) of (π) is pressed down into the second groove (27), so that the second casing (20) is fixed in the second position; in addition, the elastic member (60) can be selected according to requirements. Material of elasticity coefficient to change different fixing strength and rotation tightness; by this, -8-570863 can be provided. S User-friendly power tool housing with multiple working angles and low cost. In the present invention, more than two grooves can be provided on the surface of the positioning seat (25) of the second casing (20) to control the electric screwdriver to have more groups of bending angles. -9- 570863
' 1 I 發明說明$賣頁 【圖式之簡單說明】 第一圖為本發明一較佳實施例之前視圖； 第二圖為本發明一較佳實施例之前視剖視圖； 第三圖為本發明一較佳實施例之作動示意圖；以及 5 第四圖為本發明一較佳實施例之前視剖視圖，係顯示 旋轉後之第二殼體。 【主要部份之代表符號】 10第一殼體 11第一側蓋 10 12第二侧蓋 13樞軸 14開口 15電池外蓋 16撓性臂 17第一面 18第二面 19凸塊 20第二殼體 21第三側蓋 15 22第四側蓋 23樞孔 24穿孔 25定位座 26第一凹槽 27第二凹槽 30電源單元 40驅轉裝置 42馬達 44傳動部 20 46套筒 60彈性件 50開關'1 I Description of the invention $ Selling page [Simplified description of the drawings] The first figure is a front view of a preferred embodiment of the present invention; the second figure is a front sectional view of a preferred embodiment of the present invention; the third figure is the present invention 5 is a schematic cross-sectional view of a preferred embodiment of the present invention, showing a second housing after rotation. [Representative symbols of the main parts] 10 First case 11 First side cover 10 12 Second side cover 13 Pivot 14 Opening 15 Battery cover 16 Flexible arm 17 First surface 18 Second surface 19 Bump 20th Second housing 21 Third side cover 15 22 Fourth side cover 23 Pivot hole 24 Perforation 25 Positioning seat 26 First groove 27 Second groove 30 Power unit 40 Driving device 42 Motor 44 Transmission 20 46 Sleeve 60 Elastic Pieces of 50 switches