M284522 八、新型說明： 【新型所屬之技術領域】 特別是指一種具有護蓋之圓 本創作係與圓鋸機有關， 鋸機。 【先前技術】 15 _:具之軸結構中，例如美國第卿5 號，利案’，、包3有-可相對於—基座旋轉之旋臂，旋臂 内，設-則以及-護蓋，鎇片之部分㈣外露出旋臂， 護盍可相對於旋臂偏轉，並且罩⑽片外露出旋臂之鑛 齒；護蓋與基座之間設有—連桿，連桿—端雜設於基座， 另「端則設有-具預定外形之溝槽，護蓋之一滑動銷容設 於溝槽；當旋臂相對於基座偏轉時，旋臂同時帶動連桿偏 轉，使連桿利用對應於導槽之壁面推抵護蓋之滑動銷，滑 動銷在鉍臂持續偏轉時即可沿著導槽之壁面移動，進而帶 動護蓋相對於旋臂旋轉，使鋸片外露出護蓋，使用者藉以 利用鑛片進行物料的鑛切加工。 然而，在上述之圓鋸機結構中，由於連桿之溝槽係位 於鋸片外側，溝槽容易沾附到鋸切加工時所產生的油污或 是切屑，使滑動銷無法順利地沿著溝槽移動，進而使護蓋 2〇無法順暢與快速地相對於旋臂偏轉，較為容易造成使用上 的困擾。 另如美國第4,805,504號與第5,020,406號專利案中所 述，圓鋸機同樣也具有一罩設於鋸片外周之護蓋，護蓋可 隨鋸片之偏轉而相對旋轉，但是該二專利案亦具有護蓋無 ⑧ M284522 法快速轉動的缺點。 【新型内容】 。因此，本創作之主要目的乃在於提供一種具有護蓋之 5圓鑛機’ 4蓋可較為順暢與快速地相對於旋臂偏轉 ，而且 不會受到鑛切加工所產生的油污或切屑之影響，減少使用 上的困擾。 為達成前揭目的，本創作所提供之圓鋸機包含有一基 座、一旋臂、-雜片、一護蓋，以及一連桿；該基座具有 10 一定位部以及—域部’該旋臂係樞設於該基座，該雜片 係樞設於該旋臂，該護蓋係梅設於該旋臂，且罩設於該鑛 片之外周’而該連桿具有一導槽以及一抵頂部，該連桿一 端樞設於該護蓋，該抵頂部係抵於該基座之支撐部，該定 位部則容設於該導槽；當該旋臂及該護蓋相對於該基座旋 I5轉時’該連桿即可帶動該護蓋相對於該旋臂旋轉，使該鑛 片外露出該護蓋’藉此’本創作即可使護蓋較為順楊與及 時地相對於旋臂偏轉，不會受到鑛切加工所產生的油 切屑之影響，減少使用上的困擾。 2〇【實施方式】 以下’级配合圖式舉_較佳實施例，用以對本創作 細部結構及功效進行說明，其中所用圖式先簡要說明如下· 第-圓係本創作-較佳實施例之示意圖，主要顯 臂尚未旋轉之狀態； z & 5 M284522 第一圖係本創作一較佳實施例之局部立體分解圖； 弟二圖係本創作一較佳實施例之示意圖，主要顯示旋 臂向下旋轉之狀態； 第四圖係本創作一較佳實施例之示意圖，主要顯示旋 5臂持續向下旋轉之狀態；以及 第五圖係本創作一較佳實施例之示意圖，主要顯示旋 臂轉至下止點的狀態。 請參閱第一及第二圖所示，係為本創作一較佳實施例 所提供之圓据機’圓鑛機包含有一基座(11)、一旋臂(21)、 10 一鋸片（23)、一護蓋(31)，以及一連桿(41);基座(11)具有一 ί月動台（12) ’滑動台（12)具有二滑動轴(17)，各滑動軸(I?) 係穿設於基座（11)之一側，使滑動台（12)可於基座（1丨)上方 沿滑動軸(17)之轴向移動，滑動台（12)另設有一支撐部(13) 與一位於支撐部（13)上方之定位部（14)，定位部（14)係可為 15圓柱體或是套筒亦或是轴承，支撐部(13)具有一第一段(15) 以及一第二段(16)，第一段(15)係概呈直線狀地朝滑動台（12) 之側向延伸，而第二段(16)則自第一段(15)外端呈預定角度 地朝上方延伸。 該旋臂(21)藉由一轉軸(22)樞設於基座（η)之滑動台 2Q (12)，滑動台（12)用以帶動旋臂(21)沿滑動軸(17)之軸向移 動’而旋臂(21)另以轉轴(22)為圓心可相對於滑動台（12)偏 轉；該鋸片（23)係樞設於旋臂(21)内，鋸片（23)之下半部外 露出旋臂(21)，鋸片（23)藉由一馬達(圖中未示)之帶動而可 相對於旋臂(21)旋轉。 6 ⑧ M284522 该護蓋(31)係為透明材質所製成之罩體，護蓋(31)樞設 於旋臂(21)，護蓋(31)可沿旋臂(21)之外周偏轉，且鋸片 之下半。卩（亦即外露出旋臂(21)之部位）罩設於護蓋ο〗）内 部0 5 忒連才干(41)係呈長形，連桿(41)具有一抵頂部(42)以及 一f直線狀之導槽(43)，抵頂部(42)係可為圓柱體或是圓形 套筒或是軸承，抵頂部(42)位於連桿(41)之近中央位置且凸 出連桿(41)之表面；導槽(43)沿連桿(41)之軸向延伸，且靠 近連桿(41)之一端，連桿(41)之另一端係藉由另一轉軸(44) ίο樞設於護蓋(31)之外側，而抵頂部(42)抵於支撐部（13)之第 二段(16)頂側，定位部(14)則容設於導槽(43)内。 經由上述結構，如第三圖所示，當旋臂(21)相對於滑動 台（12)向下偏轉時，連桿(41)亦被帶動而向下位移，使連桿 (41)利用抵頂部(42)與支撐部（13)之第二段(16)相互抵頂的 is部位為支點，進而拉動護蓋(31)相對於旋臂(21)旋轉，而滑 動台（12)之定位部(14)沿著呈直線狀之導槽(43)移動，護蓋 (31)即可較為快速地旋轉，並且使鑛片（23)局部外露出護蓋 (31);由於連桿(41)之導槽(43)遠離於鋸片（23),導槽(43)亦 較不易沾附到鋸切加工中所產生的油污或切屑；如第四圖 2〇所示，當旋臂(21)持續向下偏轉時，連桿(41)之抵頂部(42) 持續地抵頂於支撐部(13)之第二段(16),而且也沿著第二段 (16)呈傾斜狀之外側壁移動，使連桿(41)持續拉動護蓋 (31) ’使遵蓋(31)相對於旋臂(21)旋轉之角度更大，鑛片（23) 外露出護蓋(31)的部位也更多；而如第五圖所示，當旋臂(21) 7 M284522 被帶動旋轉至下止點時，連桿(41)之抵頂部(42)係沿支撑部 (13)之第二段(16)移動至第一段(15)之頂側，而護蓋(31)則可 被連桿(41)拉動旋轉至預定角度，使鋸片（23)外露出護蓋(31) 的部位足以進行鑛切加工。 藉此，本創作即可使護蓋較為順暢與快速地相對於旋 臂偏轉，而且不會受到鑛切加工所產生的油污或切屑之影 響，減少使用上的困擾。 M284522 【圖式簡單說明】 第一圖係本創作一較佳實施例之示意圖，主要顯示旋 臂尚未旋轉之狀態， 第二圖係本創作一較佳實施例之局部立體分解圖； 5 第三圖係本創作一較佳實施例之示意圖，主要顯示旋 臂向下旋轉之狀態； 第四圖係本創作一較佳實施例之示意圖，主要顯示旋 臂持續向下旋轉之狀態；以及 第五圖係本創作一較佳實施例之示意圖，主要顯示旋 10臂轉至下止點的狀態。 【主要元件符號說明】 15M284522 VIII. New description: [New technical field] It refers to a kind of circle with a cover. The creation department is related to a circular saw machine, a sawing machine. [Prior Art] 15 _: In the shaft structure, for example, the United States No. 5, the case ', the package 3 has - can be rotated relative to the pedestal, the inside of the arm, the set - then - The cover, the part of the cymbal (4) exposes the spiral arm, the shin guard can be deflected relative to the spiral arm, and the cover (10) exposes the mineral tooth of the spiral arm; the connecting rod and the base are provided with a connecting rod and a connecting rod end Miscellaneously placed on the base, and the other end is provided with a groove having a predetermined shape, and one sliding pin of the cover is received in the groove; when the arm is deflected relative to the base, the arm simultaneously drives the link to deflect, The sliding rod is driven by the sliding pin corresponding to the wall surface of the guiding groove, and the sliding pin can move along the wall surface of the guiding groove when the arm is continuously deflected, thereby driving the cover to rotate relative to the rotating arm, so that the saw blade is outside The cover is exposed, and the user can use the ore piece to perform the mineral cutting process. However, in the above circular saw structure, since the groove of the connecting rod is located outside the saw blade, the groove is easily attached to the sawing process. The oil stain or the chips generated make the sliding pin unable to move smoothly along the groove, so that the cover 2〇 The smooth and fast deflection of the method relative to the arm is more likely to cause problems in use. As described in U.S. Patent Nos. 4,805,504 and 5,020,406, the circular saw also has a cover that protects the periphery of the blade. The cover and the cover can rotate relative to the deflection of the saw blade, but the two patents also have the disadvantage that the cover does not rotate rapidly without the 8 M284522 method. [New content] Therefore, the main purpose of the present invention is to provide a protection The cover of the 5 round mining machine '4 cover can be deflected relatively smoothly and quickly relative to the spiral arm, and will not be affected by oil stains or chips generated by the miner cutting process, reducing the trouble of use. The circular saw machine provided by the creation comprises a base, a spiral arm, a chip, a cover, and a connecting rod; the base has a positioning portion and a domain portion, wherein the arm is pivoted a pedestal, the slat is pivotally disposed on the arm, the cover is disposed on the arm, and is disposed on the outer circumference of the slab, and the link has a guiding slot and a top, the connecting One end of the rod is pivotally mounted on the cover. The top portion is abutted against the support portion of the base, and the positioning portion is received in the guide groove; when the swing arm and the cover rotate relative to the base, the link can drive the cover Relative to the rotation of the arm, the outer part of the piece is exposed to the cover, thereby creating a cover that is relatively smooth and timely deflected relative to the arm, without being subjected to oil cutting by the miner cutting process. The effect of the invention is reduced. 2〇[Embodiment] The following is a description of the structure and function of the creation. The present invention is a schematic view of a preferred embodiment, in which the main display arm has not been rotated; z & 5 M284522 The first figure is a partial exploded view of a preferred embodiment of the present invention; A schematic diagram of a preferred embodiment mainly shows a state in which the spiral arm is rotated downward; the fourth figure is a schematic view of a preferred embodiment of the present invention, mainly showing a state in which the rotary 5 arm is continuously rotated downward; and the fifth figure is a creation of the present invention. Schematic of a preferred embodiment, To display the status of the bottom dead center point of the arm go. Referring to the first and second figures, the circular machine of the present invention is provided with a base (11), a spiral arm (21), and a saw blade. 23), a cover (31), and a connecting rod (41); the base (11) has a turret (12) 'the sliding table (12) has two sliding shafts (17), each sliding shaft ( I?) is disposed on one side of the base (11), so that the sliding table (12) can move along the axial direction of the sliding shaft (17) above the base (1), and the sliding table (12) is further provided with a The support portion (13) and a positioning portion (14) located above the support portion (13), the positioning portion (14) may be a 15 cylinder or a sleeve or a bearing, and the support portion (13) has a first a segment (15) and a second segment (16), the first segment (15) extending linearly toward the side of the sliding table (12), and the second segment (16) from the first segment (15) The outer end extends upward at a predetermined angle. The arm (21) is pivoted on a sliding table 2Q (12) of the base (η) by a rotating shaft (22) for driving the arm (21) along the axis of the sliding shaft (17) The arm (21) is further pivoted with respect to the sliding table (12) with the rotating shaft (22) as a center; the saw blade (23) is pivoted in the arm (21), and the saw blade (23) The lower half exposes a spiral arm (21) which is rotatable relative to the arm (21) by a motor (not shown). 6 8 M284522 The cover (31) is a cover made of transparent material. The cover (31) is pivoted on the arm (21), and the cover (31) can be deflected along the outer circumference of the arm (21). And the bottom half of the saw blade.卩 (that is, the part where the spiral arm (21) is exposed) is placed over the cover ο)) internal 0 5 忒 才 (41) is elongated, the connecting rod (41) has a top (42) and a f linear guide groove (43), the top (42) can be a cylinder or a circular sleeve or a bearing, the top (42) is located near the center of the connecting rod (41) and the protruding link (41) the surface; the guide groove (43) extends along the axial direction of the connecting rod (41) and is close to one end of the connecting rod (41), and the other end of the connecting rod (41) is rotated by another rotating shaft (44). It is pivotally disposed on the outer side of the cover (31), and the top portion (42) abuts against the top side of the second portion (16) of the support portion (13), and the positioning portion (14) is received in the guide groove (43). Through the above structure, as shown in the third figure, when the swing arm (21) is deflected downward relative to the slide table (12), the link (41) is also driven to be displaced downward, so that the link (41) is utilized. The is portion of the top portion (42) and the second portion (16) of the support portion (13) abutting each other is a fulcrum, thereby pulling the cover (31) to rotate relative to the spiral arm (21), and the positioning of the sliding table (12) The portion (14) moves along the linear guide groove (43), the cover (31) can be rotated relatively quickly, and the core piece (23) is partially exposed to the cover (31); The guide groove (43) is far away from the saw blade (23), and the guide groove (43) is also less likely to adhere to the oil stains or chips generated during the sawing process; as shown in Fig. 2A, when the arm ( 21) When the downward deflection is continued, the abutting top portion (42) of the connecting rod (41) continuously abuts against the second portion (16) of the supporting portion (13), and is also inclined along the second portion (16). The outer side wall moves, so that the connecting rod (41) continues to pull the cover (31) 'to make the angle of rotation of the cover (31) relative to the arm (21) larger, and the outer piece (23) exposes the cover (31) There are more parts; as shown in the fifth figure, when the arm (21) 7 M284522 is driven to rotate At the dead center, the abutting top portion (42) of the connecting rod (41) moves along the second portion (16) of the supporting portion (13) to the top side of the first segment (15), and the cover (31) can be The connecting rod (41) is pulled to rotate to a predetermined angle, so that the portion of the saw blade (23) that is exposed outside the cover (31) is sufficient for ore cutting. In this way, the creation allows the cover to be deflected relatively smoothly and quickly relative to the arm, and is not affected by oil stains or chips generated by the metal cutting process, thereby reducing the trouble of use. M284522 [Simplified illustration of the drawings] The first figure is a schematic view of a preferred embodiment of the present invention, mainly showing a state in which the arm has not been rotated, and the second drawing is a partial exploded view of a preferred embodiment of the present invention; A schematic diagram of a preferred embodiment of the present invention mainly shows a state in which the spiral arm is rotated downward; the fourth drawing is a schematic view of a preferred embodiment of the present invention, mainly showing a state in which the spiral arm continues to rotate downward; and a fifth The figure is a schematic view of a preferred embodiment of the present invention, mainly showing the state in which the rotary arm is turned to the bottom dead center. [Main component symbol description] 15
11基座 12滑動台 13支撐部 14定位部 15第一段 16第二段 17滑動軸 21旋臂 22轉軸 23鋸片 31護蓋 41連桿 42抵頂部 43導槽 44轉軸 ⑧11 base 12 slide table 13 support portion 14 positioning portion 15 first section 16 second section 17 slide shaft 21 swing arm 22 shaft 23 saw blade 31 cover 41 link 42 to the top 43 guide groove 44 shaft 8