200538254 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】 本發明係與氣動工具有關，特別是指一種使用於氣動 工具之減震結構。 5 【先前技術】 按，習用的氣動工具，尤其是氣動往復運動式工具， 其衝搫單元作用產生之震動大，但是不具有良好的減震作 用，容易讓使用者產生手部受傷之工作傷害。 因此，市面上即有各種減緩震動的設計及產品紛紛出 10 籠，然而其結構不外乎使用圈狀彈簧等構件，其減震之效 果並不理想，彈性係數不易掌握，而且由於高頻震動的因 素，這類構件非常容易損壞而需時常更換。 【發明内容】 15 有鑑於上述之缺失，創作人即苦心研究而得本發明氣 動工具之減震結構。 本發明之主要目的，即在提供一種氣動工具之減震結 構，其減震件可伸縮使具有較佳之減震效果。 本發明之次一目的，更在提供一種氣動工具之減震結 20 構，其結構簡單、強度佳、方便製造且成本低。 緣是，為達成前揭目的，本發明所提供一種氣動工具 之減震結構，係可供氣動工具之一衝擊單元減震之用，該 減震裝置包含有一本體具有一裝設部，一第一承孔及一容 置孔依序開設於該裝設部，一第一固部設於該第一承孔之 續次頁（發明說明頁不敷使用時，請註記並使用續頁） 200538254 發明說明 底側；一控移筒係供裝設該衝擊單元，該控移筒具有一筒 身可密封地活動插設於該本體之容置孔；一第一減震件具 有一伸縮體供該本體與控移筒間緩衝之用，該伸縮體概呈 參狀，並形成有若干受伸縮部可軸向變形，而使該伸縮體 5 可壓縮或是拉伸。 【實施方式】 為使更暸解本發明之特點及所達成功效，兹舉以下較 佳實施例並配合圖式說明如下： 10 請參閱第一圖及第二圖，本發明一較佳實施例所提供 氣動工具之減震結構’係接設一衝擊單元（8);該減震裝置 包含有： 一本體（10)，具有一裝設部（11)，一握持部（12)連接該 裝設部（11)，一第一承孔（13)、一容置孔（14)及一第二承孔 15 (15)依序開設於該裝設部（Π)，一封環溝（Ml)以及一氣溝 (142)環設於該容置孔（14)預定位置，一第一固部（16)(於本 實施例係為一螺孔）設於該第一承孔（13)之一端，一第二固 部（17)及一固蓋部（18)(二者於本實施例係為同一螺孔）設於 該第二承孔（15)開口處，一通氣道（19)由該握持部（12)底部 20 通至該氣溝（142)。 '其中，該本體（10)之封環溝（141)係裝設有一密封環 (71)，以提供氣密之作用。 一控移筒（20)，具有一筒身（21)可活動插設於該本體（1〇) 之容置孔（14)，該筒身（21)之外周係受該密封環（71)之密 -6- 200538254 發明說明_§; 封，一氣室（22)開設於該筒身（21)並相通一螺孔（23)供該衝 擊單元（8)之螺固結合，若干通氣孔（24)由該氣室（22)通至該 本體（10)之氣溝（142)。 一第一減震件（30)，具有一伸縮體（31)形成有一中孔 5 (32)，一第一接部（33)—體地接設於該控移筒（20)之筒身 (21)，一第二接部（34)於該伸縮體(31)另端供螺固於該本體 (10)之第一固部（16);其中，該伸縮體(31)係呈螺旋形簧圈 之形狀。 一第二減震件（40)，具有一伸縮體（41)形成有一中孔 10 (42)，一第一接部（43)—體地接設於該控移筒（20)之筒身 (21)，一第二接部（44)於該伸縮體(41)另端供螺固於該本體 (10)之第一固部（16);其中，該伸縮體(41)概呈圓管狀，其 與圓周徑向間隔排列開設有若干呈長條孔狀之變形孔 (45)，若干之連接部（46)形成於相鄰的變形孔(45)間，並形 15 成有若干受伸縮部(47)。 本貫施例上述控移筒（2〇)、第一減震件(3〇)及第二減震 件(40)係以塑膠射出一體成型，而可使其方便快速製造；尤 其以具有較佳彈性及耐油及耐衝擊性材料為佳，如MC尼 龍(MC NYLON)等材f等，其他如橡膠、泡綿及優力膠等 2〇彈性及強度佳之材質亦可；其可為射出一體成形，或者於 各別射出後再施以融接、螺接或鉚接等方式結合。 本實施例之操作及作動情形，玆說明如下： 如第二圖所示，該第一減震件(30)及第二減震件(40)之 各伸縮體(31)(41)係均可提供壓縮及拉伸變％，尤其是該第 200538254 發明說明 二減震件（40)之各受伸縮部（47)可提供更佳的壓縮及拉伸 變形，以作為良妤的減震之用。 上述實施例中，該第一減震件可與該第二減震件為相 同的結構，即該第一減震件亦具有變形孔、連接部及受伸 5 縮部等相同要件。 除了上述實施例之外，本發明該控移筒、第一減震件 及一第二減震件均可再作如下的變化： 如第三圖所示，其變形孔(45A)係為三角形相隔排列以 正反向；或者’如第四圖所示，減震件之變形孔（45B)孔形 10 呈弧形孔；以及，如第五圖所示，其變形孔（45C)則為菱形 孔；此外，其變形孔係亦可為圓孔、橢圓孔、V字形、S 形、梯形等等；其各變形孔之間即形成的連接部，同樣可 達成本發明變形伸縮減震的目的。 如第六圖所示，係該控移筒之變形孔加填另一緩衝材 15 (61)之結構；以及如第七圖所示，該減震件之伸縮體(41A) 直接為一緩衝材之結構圖，並開有軸向長孔。 再者，各變形孔的排列，除了前述為徑向的直向排列 之外；如第八圖所示，其更可為徑向斜向的排列，其變形 孔(45D)形成有一夾角；或者，如第九圖所示，其變形孔(45E) 20 係呈螺旋向的排列。 '本發明減震件又可為以下的結構，其伸縮體係更再改 良實施，其中： 另外，如第十圖及第十一圖所示，諸第一減震件之伸 縮體（31A)為圓周整圈徑向截面呈連續彎曲形之受伸縮部 -8- 200538254 - 發明說明_頁 (37)，其同樣可提供壓縮或者拉伸之彈性變形。而，該伸縮 體（41B)為圓周排列多個軸向截面呈連續彎曲形之受伸縮 部（47B)之狀態，而形成有若干逃孔（48A)。 再者，如第十二圖及第十三圖所示，該伸縮體(41C)為 5 圓周排列多個轴向彎曲形之受伸縮部（47C)，其同樣形成有 若干逃孔(48B)，其可同樣達到伸縮減震的作用。 由以上實施例說明，可歸納本發明之特點如下： 1.本發明氣動工具之減震結構，其減震件係可提供壓縮 及拉伸變形，可使具有較佳之減震效果。 10 2.本發明氣動工具之減震結構，其減震件之結構簡單、 整體強度佳、方便製造且成本低。 -9- 200538254 發明說明，續胃 【圖式簡單說明】 第一圖係本發明一較佳實施例之側視組合剖面圖。 第二圖係本發明一較佳實施例控移筒之側視剖面圖。 第二圖至第五圖係本發明一較佳實施例減震件之變形 孔分別呈三角形、弧形及菱形之結構圖。 第六圖係變形孔加填另一緩衝材之結構圖。 第七圖係該減震件之伸縮體為一緩衝材之結構圖。200538254 发明 Description of the invention (The description of the invention should state: the technical field, the prior art, the content, the embodiments, and the drawings of the invention are briefly described.) [Technical field to which the invention belongs] The present invention relates to pneumatic tools, especially to a Shock absorption structure for pneumatic tools. 5 [Previous technology] According to the conventional pneumatic tools, especially the pneumatic reciprocating tools, the impact of the punching unit is large, but it does not have a good shock absorption effect, and it is easy for the user to cause hand injuries. . Therefore, there are various designs and products for reducing vibration on the market. There are 10 cages in the market. However, its structure is nothing more than the use of coil springs and other components. Its vibration reduction effect is not ideal. The elastic coefficient is not easy to grasp. This kind of component is very easy to be damaged and needs to be replaced frequently. [Summary of the Invention] In view of the above-mentioned shortcomings, the creator has painstakingly researched and obtained the shock absorbing structure of the pneumatic tool of the present invention. The main object of the present invention is to provide a shock absorbing structure of a pneumatic tool, the shock absorbing member of which can be expanded and contracted to have a better shock absorbing effect. A secondary object of the present invention is to provide a shock absorbing structure of a pneumatic tool, which has a simple structure, good strength, convenient manufacturing, and low cost. The reason is that in order to achieve the purpose of the previous disclosure, the present invention provides a damping structure for a pneumatic tool, which can be used for damping an impact unit of one of the pneumatic tools. The damping device includes a body with a mounting portion, a first A bearing hole and a receiving hole are sequentially opened on the installation part, and a first fixing part is provided on the continuation page of the first bearing hole (when the invention description page is insufficient, please note and use the continuation page) 200538254 Description of the invention: bottom side; a control cylinder is provided for installing the impact unit, the control cylinder has a cylinder body which can be movably inserted in a receiving hole of the body; a first shock absorbing member has a telescopic body for For the purpose of buffering between the main body and the control cylinder, the telescopic body is generally in the shape of a parameter, and formed with a plurality of telescopic parts that can be deformed axially, so that the telescopic body 5 can be compressed or stretched. [Embodiment] In order to better understand the features and achieved effects of the present invention, the following preferred embodiments are described below with reference to the drawings: 10 Please refer to the first and second figures, a preferred embodiment of the present invention A shock-absorbing structure for providing a pneumatic tool is connected with an impact unit (8); the shock-absorbing device includes: a body (10) having a mounting portion (11) and a holding portion (12) connected to the mounting The installation section (11), a first receiving hole (13), a receiving hole (14) and a second receiving hole 15 (15) are sequentially opened in the installation section (Π), and a ring groove (Ml ) And an air groove (142) are arranged in a predetermined position in the receiving hole (14), and a first fixing portion (16) (a screw hole in this embodiment) is provided in the first receiving hole (13). One end, a second fixing portion (17) and a fixing cover portion (18) (both are the same screw holes in this embodiment) are provided at the opening of the second bearing hole (15), and an air passage (19) is formed by The bottom portion 20 of the grip portion (12) leads to the air groove (142). 'Among them, a sealing ring groove (141) of the body (10) is provided with a sealing ring (71) to provide an air-tight effect. A control cylinder (20) has a cylinder body (21) which can be movably inserted into an accommodation hole (14) of the body (10), and the outer periphery of the cylinder body (21) is received by the sealing ring (71). Zhimi-6- 200538254 Description of the invention_§; seal, an air chamber (22) is opened in the cylinder body (21) and communicates with a screw hole (23) for screwing the impact unit (8), and several air holes ( 24) An air groove (142) leading from the air chamber (22) to the body (10). A first shock absorbing member (30) has a telescopic body (31) formed with a middle hole 5 (32), and a first connecting portion (33) is connected to the body of the control cylinder (20) in a body-ground manner. (21) A second connecting portion (34) is screwed to the first fixing portion (16) of the main body (10) at the other end of the telescopic body (31); wherein the telescopic body (31) is spiral The shape of the spring coil. A second shock absorbing member (40) has a telescopic body (41) formed with a middle hole 10 (42), and a first connecting portion (43) is connected to the body of the control cylinder (20) in a body-ground manner. (21) A second connecting portion (44) is provided at the other end of the telescopic body (41) for screwing to the first solid portion (16) of the body (10); wherein the telescopic body (41) is substantially circular It is tubular, and is arranged with a plurality of deformation holes (45) in the shape of a long hole in a radial distance from the circumference. A plurality of connecting portions (46) are formed between adjacent deformation holes (45), and are formed into a plurality of receiving holes. Telescopic section (47). In the present embodiment, the control cylinder (20), the first shock absorbing member (30), and the second shock absorbing member (40) are integrally formed by plastic injection, so that it can be conveniently and quickly manufactured; Materials with good elasticity, oil resistance and impact resistance, such as MC nylon (MC NYLON), etc. Other materials such as rubber, foam, and urethane, which have good elasticity and strength, can also be used; Forming, or applying welding, screwing or riveting after each shot. The operation and operation of this embodiment are described as follows: As shown in the second figure, each of the telescopic bodies (31) and (41) of the first shock absorbing member (30) and the second shock absorbing member (40) are all Can provide compression and tensile percent change, especially the 200538254 invention description. Each of the telescopic parts (47) of the second shock absorbing member (40) can provide better compression and tensile deformation, as a good shock absorption use. In the above embodiments, the first shock absorbing member may have the same structure as the second shock absorbing member, that is, the first shock absorbing member also has the same requirements as the deformation hole, the connecting portion, and the extension 5 and the like. In addition to the above embodiments, the control cylinder, the first shock absorbing member, and the second shock absorbing member of the present invention can be modified as follows: As shown in the third figure, the deformation hole (45A) is triangular. Arranged in a forward and reverse direction; or 'As shown in the fourth figure, the deformation hole (45B) of the shock absorbing member is an arc-shaped hole; and, as shown in the fifth picture, the deformation hole (45C) is Diamond-shaped holes; in addition, the deformation holes can also be round holes, oval holes, V-shaped, S-shaped, trapezoidal, etc .; the connection formed between the deformation holes can also reach the cost purpose. As shown in the sixth figure, the deformation hole of the control cylinder is filled with another cushioning material 15 (61); and as shown in the seventh figure, the telescopic body (41A) of the shock absorbing member is a buffer directly The structural drawing of the material, with axial long holes. Furthermore, the arrangement of the deformation holes is in addition to the aforementioned radial and straight arrangement; as shown in FIG. 8, it can be arranged in a radial oblique direction, and the deformation holes (45D) form an included angle; or As shown in the ninth figure, the deformation holes (45E) 20 are arranged in a spiral direction. 'The shock absorbing member of the present invention may have the following structure, and the telescopic system thereof is further improved and implemented, wherein: As shown in FIG. 10 and FIG. 11, the telescopic bodies (31A) of the first shock absorbing members are The telescopic section with a continuous curved radial section in the entire circle-200538254-Description of the invention_page (37), it can also provide elastic deformation in compression or tension. In addition, the telescopic body (41B) is a state in which a plurality of telescopic sections (47B) whose axial cross sections are continuously curved are arranged in a circle, and a plurality of escape holes (48A) are formed. Furthermore, as shown in Figures 12 and 13, the telescopic body (41C) is a plurality of axially bent telescopic portions (47C) arranged in a circle, and it also has a plurality of escape holes (48B). , Which can also achieve the role of telescopic shock absorption. According to the above embodiments, the features of the present invention can be summarized as follows: 1. The shock absorbing structure of the pneumatic tool of the present invention, the shock absorbing member of the invention can provide compression and tensile deformation, which can have better shock absorption effect. 10 2. The shock absorbing structure of the pneumatic tool of the present invention has a simple structure, good overall strength, convenient manufacturing and low cost. -9- 200538254 Description of the invention, stomach extension [Simplified description of the drawings] The first figure is a side sectional view of a combination of a preferred embodiment of the present invention. The second figure is a side cross-sectional view of a control cylinder according to a preferred embodiment of the present invention. The second to fifth figures are structural diagrams in which the deformation holes of the shock absorbing member of the preferred embodiment of the present invention are triangular, arc-shaped, and diamond-shaped, respectively. The sixth figure is a structural diagram of the deformed hole filled with another cushioning material. The seventh diagram is a structural diagram of the shock absorbing member as a buffer material.
第八圖係本發明一較佳實施例控移筒之側視剖面圖， 顯示斜向排列的狀態。 第九圖係本發明一較佳實施例控移筒之側視剖面圖， 顯示螺旋向排列的狀態。 第十圖係本發明一較佳實施例控移筒之側視剖面圖， •-不一伸縮體為圓周整圈徑向彎曲形受伸縮部，另一伸縮 體為圓周排列多個徑向彎曲形受伸縮部之狀態。 第十一圖係第十圖中沿割線方向剖視圖。 第十一圖係本發明一較佳實施例控移筒之側視剖面The eighth figure is a side cross-sectional view of a control cylinder according to a preferred embodiment of the present invention, showing a state of oblique arrangement. The ninth figure is a side cross-sectional view of a control cylinder according to a preferred embodiment of the present invention, showing a state of spiral arrangement. The tenth figure is a side cross-sectional view of a controllable moving cylinder according to a preferred embodiment of the present invention. • One of the telescopic bodies is a radially curved receiving and retracting part, and the other telescopic body is a plurality of radial bendings arranged in a circle. Shaped by the state of the telescopic portion. The eleventh figure is a cross-sectional view taken along the secant line in the tenth figure. The eleventh figure is a side sectional view of a controllable moving barrel according to a preferred embodiment of the present invention.
圖，顯示伸縮體為圓周排列多個轴向彎曲形受伸縮部之狀 態。 第十二圖係第十二圖中沿13-13割線方向剖視圖。 -10- 200538254 10 15 【圖式符號說明】 衝擊單元（8) 本體（10) 裝設部（11) 握持部（12) 第一承孔（13) 容置孔（14) 封環溝（141) 氣溝（142) 第二承孔（15) 第一固部（16) 第二固部（17) 固蓋部（18) 通氣道（19) 控移筒（20) 筒身（21) 氣室（22) 螺孔（23) 通氣孔(24) 第一減震件(30) 伸縮體(31)(31A) 中孔(32) 第一接部（33) 第二接部（34) 受伸縮部（37) 第二減震件(40) 伸縮體(41)(41A)(41B)(41C) 中孔(42) 第一接部(43) 第二接部(44)The figure shows a state in which the telescopic body has a plurality of axially bent shaped telescopic portions arranged in a circle. The twelfth figure is a sectional view taken along the line 13-13 in the twelfth figure. -10- 200538254 10 15 [Explanation of symbols] Impact unit (8) Body (10) Mounting part (11) Holding part (12) First receiving hole (13) Receiving hole (14) Sealing groove ( 141) Air groove (142) Second receiving hole (15) First fixing part (16) Second fixing part (17) Fixing cover part (18) Air channel (19) Control cylinder (20) Body (21) Air chamber (22) Screw hole (23) Ventilation hole (24) First shock absorber (30) Telescopic body (31) (31A) Middle hole (32) First connection part (33) Second connection part (34) Retracted part (37) Second shock absorber (40) Telescopic body (41) (41A) (41B) (41C) Center hole (42) First connection part (43) Second connection part (44)
變形孔(45)(45A)(45B)(45C)(45D)(45E) 連接部（46) 受伸縮部（47)(47A)(47C) 逃孔（48A)(48B) 20 緩衝材(61) 密封環(71) -11-Deformation hole (45) (45A) (45B) (45C) (45D) (45E) connecting part (46) telescopic part (47) (47A) (47C) escape hole (48A) (48B) 20 cushioning material (61 ) Sealing ring (71) -11-