201029813 六、發明說明： 【發明所屬之技術領域】 之打入工具 本發明係關於主要為手持式打釘機等 【先前技術】 例如壓縮空氣驅動式之打釘機蜱 心耵機之情形中，具備内裝藉由 壓縮空氣往復動之活塞之本體部.< 签 < 令篮#，设於本體部之前端，引 導安裝於活塞之打擊用撞針之打入部，·向本體部側方延伸 之把手部；收容供給於打入部之多數打入具之釘匡。釘£ ❿巾裝填有多數支打人具藉由結合構件並列連結之連結打入 裝填於釘匣之連結打入具，係藉由彈簧之彈推力而於 供給方向（打入通路側）被壓之狀態。藉由該彈簧彈推力， 打入具於打入完了後變空之打入通路内一個一個地被壓 出供給。 打入。卩係構成為在通路形成構件與針匿之打入具供給口 之間’有撞針往復動，且形成可收容1支打入具之空間的 打入通路。 ^而言’例如下述之專利文獻所記載，為確保打入具 打擊用之撞針打擊時之強度（主要為抗彎強度），乃使其剖 面形狀複雜化0其結果為，由於插通撞針之打入通路亦呈 複雜之剖面形狀，因此針對構成該打入通路之通路形成構 件等’乃進行藉由材料之鍛造或切削加工等，使其剖面形 狀帶有複雜之凹凸。 近年’以謀求該打入部之低成本化為目的’已提供如作 為通路形成構件，使用藉由鋼板之衝壓加工或打穿加工製 143292.doc 201029813 作之低價構件（所謂之鈑金零件、鈑金物）之技術。 [專利文獻1]曰本特開平7-246575號公報 【發明内容】 [發明所欲解決之問題] 然，將構成打入通路之通路形成構件，以所謂之鈑金零 件構成之情形中，由於保持其加卫形態性f上之複雜的剖 面形狀較困難，因此打入通路乃成為單純之矩形剖面形 狀。其結果，長型之撞#，為確保其強度而需要寬幅地設 定剖面形狀’從而為插通其之打人通路亦需寬幅地設定。 如此冑構成打人部之通路形成構件，以所謂之飯金零 件構成之情形中’就其打人通路之寬度尺寸，由於必須設 定為比足以僅插通一支打入具之所需寬度尺寸更大之寬 幅，因此有供給之打入具之通路寬度方向之位置不穩定之 問題。若打入通路•人目 八之通路寬度方向之位置不穩 定，則有發生如下之故障之虞。連結打入具之中途位置： 打入具’由於介隔連結構件（線材或薄板）藉由其後側（供給 方向後側）之打人具而保持位置因此打人通路内不會產 生大量之位置偏差。 與此相對，針對連姓纟了入曰 逆、。打入具之最後之打入具（最後 钉）’於其送進方向後側，靖▲ # 追加袈填其他連結打入具之 形’由於對該追加裝填之連結打入具之最初之打入具， 導線等連結構件互相連結，因此該最後之打入 無法藉由追加裝填之連社 w ^ , 迷、，。打入具之最初之打入具保持 置。因此，連結打入具 敢後之打入具在打入通路内， 143292.doc 201029813 寬度方向有較大之位置偏差之情形。若供给之打入具在打 入通路内於寬度方向位置偏差，則因以彈簧彈推力，後側 之打入具於送進方向被按壓，其頭部之一部分會進入打入 通路内，其結果，2支打入具鮮少被同時打擊。若2支打入 具被一次打擊，則該等打入具於打入通路内會堵塞，成為 所謂問題之原因。 該問題，特別是在以連結打入具每單位長度之連結支數 之增大為目的，於釘軸（打入具之軸部）相互大致無間隙程 度地接近，多數支打入具高密度連結成之連結打入具（高201029813 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a main hand-held nailing machine, etc. [Prior Art] For example, a compressed air driven nailing machine The body portion of the piston that is reciprocated by the compressed air is attached to the inside of the body portion, and is provided at the front end of the main body portion to guide the driving portion of the striking striker attached to the piston, and to the side of the main body portion. Extending the handle portion; accommodating the staples supplied to the punching portion. The £ ❿ 有 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数 多数State. By the spring-pushing thrust, the driving force is supplied one by one in the driving path which becomes empty after the driving is completed. Into. The lanthanum system is configured such that a striker reciprocates between the passage forming member and the needle-infeeding supply port, and a driving passage that can accommodate a space of one punching device is formed. For example, as described in the following patent documents, in order to ensure the strength (mainly bending strength) when hitting a striker with a strike, the cross-sectional shape is complicated to 0. As a result, the striker is inserted. Since the driving path is also in a complicated cross-sectional shape, the path forming member or the like constituting the driving path is subjected to forging or cutting by a material, and the cross-sectional shape thereof has complicated irregularities. In recent years, 'the purpose of pursuing the cost reduction of the entry department' has been provided as a low-cost component (called a sheet metal part, 143292.doc 201029813) which is used as a passage forming member and is formed by press working or punching of a steel sheet. The technology of sheet metal). [Problem to be Solved by the Invention] However, in the case where the passage forming member constituting the driving path is constituted by a so-called sheet metal part, It is difficult to maintain the complex cross-sectional shape of the morphological f, so the access path becomes a simple rectangular cross-sectional shape. As a result, the long type collision # requires a wide sectional shape to ensure the strength thereof, and it is also required to be widely set to be inserted. In this way, the passage forming member of the hitting portion is formed in the case of a so-called meal gold part. The width dimension of the hitting passage is set to be larger than the required width of the punching device. The larger the width, the problem is that the position of the feed in the direction of the width of the passage is unstable. If the position of the access path or the direction of the width of the path is not stable, the following faults may occur. In the middle of the link in the middle of the hit: the hitter has a position because the spacer member (wire or sheet) is held by the rear side (the rear side of the supply direction), so that there is no large amount in the hitting path. Positional deviation. In contrast, for the company's surname, it was invaded. The last hitting tool (final nail) of the hitting tool is placed on the back side of the feeding direction, Jing ▲ # additional 袈 fill in other links to enter the shape of the 'Because the link to the additional loading hits the initial hit The connecting members such as the fittings and the wires are connected to each other, so the last hit cannot be added by the additional filling. The initial hitting of the hitter is maintained. Therefore, if the link is entered, the hitter is in the access path, and 143292.doc 201029813 has a large positional deviation in the width direction. If the feed punch has a positional deviation in the width direction in the drive path, the kicker on the rear side is pressed in the feed direction by the spring-loaded thrust, and a part of the head enters the drive path. As a result, two hits were rarely hit at the same time. If the two hitters are hit once, the hits will be blocked in the access path, which is the cause of the so-called problem. This problem is particularly close to the fact that the nail shafts (the shaft portions of the punching members) are substantially free of each other with the purpose of increasing the number of joints per unit length of the joint driving members, and most of the rods have a high density. Linked into a link (high
密度連結打入具）之情形中易發生。 本發明係鑑於先前問題而完成者’其目的為：以成本降 低為目的，使構成打入部之構件為所謂之鈑金零件，其結 果，即使在寬幅地設定打入通路之情形下，亦可藉由使打 入具之打入通路寬度方向之位置穩定化，而至連結打入具 之最後之打入具為止，確實地一個一個地打擊，使如先前 之2個打入具被一次打擊之情事不會發生。 [解決問題之技術手段] 因此’本發㈣專職求範圍之各請求項所記載之構造 之打入工具。 ’將被供給到打入通 之位置，藉由限制部 。因此，該打入具於 根據技術方案1所記載之打入工具 路内之打入具之頭部於通路寬度方向 被限制在比撞針之寬度更小之範圍内 置’而限制連結 結果為，確實地 打入通路之寬度方向被保持在大致中央位 打入具之下一個打入具進入打入通路内， 143292.doc 201029813 藉由撞針只打仏支打人具，從而不會發生如先前之—次 打擊2支打入具之問題。 根據技術方案2所記載之打入工具，被供給到打入通路 之1支打入具之頭部在供給口側中於通路寬度方向之位置 偏差受到限制，因而可更確實地防止下一個打入具進入供 給口側。 根據技術方案3所記載之打入工具，使用以使頭部重合 且使軸部以幾近無間隙之密著狀態結合之高密度連結打入 具，可進行高效率之打入，即使是高密度連結之打入具， 亦不會發生如先前之一次打擊2支打入具問題，可確實地 一次打擊1支打入具。 根據技術方案4記載之打入工具，藉由將構成打入部之 通路形成構件採用低價之鈑金零件，可謀求該打入工具之 低成本化。 根據技術方案5記載之打入工具，對於所謂之燃燒式之 打入工具，亦可得到前述之作用效果。 【實施方式】 接著，基於圖1〜7說明本發明之實施形態。圖1係顯示本 實施形態之打入工具1。本實施形態中，例示作為該打入 工具1 ’將藉由可燃性氣體之燃燒（燃燒氣體）所得之推力， 作為打擊力利用之氣體燃燒式打釘機。 該打入工具1具備：内裝藉由燃燒氣體之推力往復動之 活塞10之本體部2;從本體部2之下部向下方延伸之狀態下 而設之打入部20 ;從本體部2之側部向侧方延伸之狀態下 143292.doc 201029813 而設之把手部3 ;從把手部3之前端至打入部2〇以架設狀態 而設之釘匣4。 本實施形態之打入工具1，係具有該打入部2〇之特徵 者，包含本體部2、把手部3及釘匣4等之打入工具丨之基本 構造，由於無需特別變更，因此就以下之概略構造進行說 明。It is easy to occur in the case of density bonding. The present invention has been made in view of the prior problem, and the object thereof is to make the member constituting the driving portion a so-called sheet metal part for the purpose of cost reduction, and as a result, even in the case where the driving path is widely set, By stabilizing the position of the punching device in the width direction of the driving path, and finally connecting the last punching device of the punching device, the bumps are surely struck one by one, so that the previous two punching tools are once The situation of the blow will not happen. [Technical means to solve the problem] Therefore, the intrusion tool of the structure described in each request item of the scope of the full-time request. ' will be supplied to the location of the pass, by the restriction. Therefore, the head of the punching device that is inserted into the driving tool path according to the first aspect of the invention is limited to a range smaller than the width of the striker in the direction of the width of the path, and the result of the connection is limited. The width direction of the ground access passage is maintained at approximately the center position. The lower punch enters the entry and enters the access passage. 143292.doc 201029813 By hitting the needle only to hit the support, so as not to occur as before - The problem of hitting 2 hits. According to the driving tool of the second aspect of the invention, the positional deviation of the head of the one of the driving members that is supplied to the driving path in the direction of the width of the path is restricted, so that the next one can be more reliably prevented. The inlet enters the supply port side. According to the driving tool according to the third aspect of the invention, the high-density connecting ejector is provided in which the head portion is overlapped and the shaft portion is brought into close contact with each other without gaps, so that high-efficiency driving can be performed even if it is high. If the density is linked to the hitter, there will be no problem with the previous hit of 2 hits, and one hit can be hit once. According to the driving tool of the fourth aspect of the invention, it is possible to reduce the cost of the driving tool by using a low-cost sheet metal component as a passage forming member constituting the driving portion. According to the driving tool of the fifth aspect, the above-described effects can be obtained for the so-called combustion type driving tool. [Embodiment] Next, an embodiment of the present invention will be described based on Figs. Fig. 1 shows a driving tool 1 of this embodiment. In the present embodiment, a gas-burning type nailing machine that uses the thrust obtained by the combustion (combustion gas) of the combustible gas as the striking force is used as the striking force. The driving tool 1 includes a main body portion 2 of a piston 10 that reciprocates by a thrust of a combustion gas, and a driving portion 20 that is provided to extend downward from a lower portion of the main body portion 2; The handle portion 3 is provided in a state in which the side portion extends to the side 143292.doc 201029813, and the magazine portion 4 is provided from the front end of the handle portion 3 to the driving portion 2〇 in an erected state. The driving tool 1 of the present embodiment has the basic structure of the driving tool 2 such as the main body 2, the handle portion 3, and the magazine 4, and the like. The following schematic structure will be described.
活塞ίο，收容於内裝於相同本體部2之汽缸12内。以從 活塞10之下面中心，用於打擊打入具n之撞針丨丨向下方延 伸較長之狀態安裝。撞針U之下部側進入打入部2〇之打入 通路28内。後述打入部2〇之詳情。 本體部2之上部之汽缸12之上室成為燃燒室i2a。於該燃 燒室12a内，配置用於授拌所供給之可燃性氣體與空氣之 授拌風扇13。該擾拌風扇13藉由風扇馬達14轉動。可燃性 氣體由切式之儲氣瓶15逐次定量供給。另於燃燒室 12a中配置火星塞16。 2打入部20配置接觸搖桿21β該接觸搖桿21被支持為可 沿著打入部20上下移位。該接觸搖桿21若移至下端位置， 則其下端部成為從打入部20之下端僅突出一定尺寸之狀 態。接觸搖桿21之上部經由中間搖桿17而聯繫於可上下動 地内裝於本體部2之可動汽缸6。 在打入操作之前，若將接觸搖桿21之下端部壓抵於打入 對象物W使其相對地上動，可動汽紅6會與此一體化上 動，使燃燒室⑶氣密關閉。另，與此同時，從儲氣瓶Μ 向燃燒室12a内喷射4量的可燃性氣體，且風扇開_ 143292.doc 201029813 打開，風扇馬達14起動，藉此，攪拌風扇13旋轉而攪拌所 供給之可燃性氣體與空氣。 η之後，將配置於把手部3之基部之觸發器形式之開關搖 、斤曰尖拉引操作，則點火開關丨9打開，於燃燒室1 h内 產生火花，據此，使可燃性氣體瞬間燃燒，而藉由其推力 使活塞10下動。當活塞〖〇下動時，則撞針丨丨與此一體化於 打入通路28内下動，在其下動途中打擊打入具頭部， 而將該1支之打入具n從打入部2〇之下端（射出口 23a)打出， 並打入到打入對象物W。 於釘匣4中裝填有複數支打入具η〜η。複數支打入具n〜n 係藉由帶狀之黏著帶等結合構件（省略圖示）並列地結合成 所謂連結打入具N而予以裝填。圖2係顯示丨支打入具n。各 打入具η係使用具有轴部na與凸緣形之頭部nb之釘。頭部 nb之供給方向後側，如圖中2點虛線所示有缺口（缺口 ^)。 如圖所示各打入具n係使頭部nb之缺口叫位於供給方向後 側之狀態而相互結合。 另’如圖1所示之鄰接之打入具η、η，以使頭部nb、nb 互不干涉之方式將供給方向後側之打入具η於轴方向上側 錯開’使其頭部nb伸出於供給方向前側之打入具^之頭部 nb之上方’而以此交疊狀態結合。因此，在被裝填於釘匣 4之狀態下，打入具n〜n係以朝向供給方向後側於上側錯開 僅頭部nb之厚度之階梯狀態予以結合，藉此使鄰接之打入 具η、η以相互之軸部na、na幾近無間隙之狀態密著之狀態 下結合。本說明書中，將如此複數支打入具n〜n以高密度 143292.doc -8- 201029813 並㈣結合之連結打入_，特稱高密度連結打入具N。 接著打入。卩20之詳情以圖3表示。打入部2〇設於汽缸 12之下部。 I]之下部，女裝有用以限制活塞10之下降端位 置及緩和在下降端位置之衝擊之圓環狀阻尼器27。於對 帛該阻尼器27之内周孔之汽缸12之下面中央，設有主要用 以使撞針11插通之大致圓形之插通口 12b。於汽紅12之下 面，安裝有呈大致圓環狀之前板25。該前板25藉由3支固 疋累釘26 26而被固疋於汽缸丨2之下面。撞針丨〗經過該前 板25之内周側與汽缸12之插通口 nb，而向撞針下方之打 入部20之打入通路28内突出。 打入。卩20具備將底板22、及稱作撞針導向板之通路形成 構件23配置成與釘匣4之安裝基部4a相互重合之狀態或相 互倚靠的狀態之構造。底板22 一體設於本體部2之汽缸12 之下部。該底板22設置為從汽缸之下面經過前板25之内 φ 周側向下方長幅突出之狀態。沿著該底板22之外側面（圖3 中之左側面）可上下移動地配置前述接觸搖桿2 j。 於底板22之内面側（圖3申之右側面）安裝有通路形成構 件23。該通路形成構件23係以將鋼板等素材衝壓加工或衝 孔加工而製作之所謂鈑金零件，具有從汽缸12之插通口 12b至底板22之下端部之長度，及與底板22大致相同之寬 度。 如圖4所示，沿著該通路形成構件23之寬度方向中央， 遍及其長度方向全長而形成有打入通路28。打入通路28之 I43292.doc 201029813 前端部即通路形成構件23之下端，相當於打出打入具η之 射出口 23a。 該打入通路28,以可插通撞針11之寬度尺寸D及深度尺 寸’形成為比較寬廣之剖面矩形。如前所述通路形成構件 23即所謂之鈑金構件，該打入通路28如圖4、5所示，形成 為比較單純之剖面矩形。另，為與此相合而插通於通路28 内之具有比較單純的剖面矩形之撞針丨丨，具有主要用以確 保其抗彎強度之相同幅寬之剖面矩形。 如圖6所示之打入通路28之寬度尺寸D，設定為比所供給 之打入具η之頭部nb之直徑nd(參照圖2)為更大之寬度尺 寸，與此配合，撞針丨丨亦設定為寬幅，以確保其充分的抗 彎強度》 本說明書中，打入通路28之寬度方向，或撞針丨丨之寬度 方向，是指相對於打入具n之打入方向（圖6中與紙面正交 之方向）為左右方向，即圖4及圖6中之上下方向，圖5中之 左右方向。另，打入通路28之寬度方向，亦簡稱作通路寬 度方向。 從打入通路28之打入方向中途位置至射出口 23 a之範圍 内，於該打入通路28之頂板部（與打入具供給口 s相對向之 部位）’設有剖面半圓形之頭部餘隙凹部23b。如圖3及圖6 所不，當1支打入具η被供給到打入通路28内時，該打入具 η之頭部nb係與打入通路28之頂板部抵接，而另一方面軸 部na之前端側則進入頭部餘隙凹部23b内，結果，該轴部 na在打入通路28内以稍微傾斜之姿勢被保持。 343292.doc •10- 201029813 以撞針11打擊該打入具η而開始下動後，頭部nb會立即 進入如述頭部餘隙凹部23b内，藉此使其軸部na被矯正為 相對於打入方向筆直朝前之姿勢，另，撞針11之推力成為 對轴部na之中心作用之狀態，在該狀態下使該打入具打從 射出口 23a打出。以如此方式被供給到打入通路28内時， 藉由限制向頭部nb進入該打入通路28内之進入量，而使下 個打入具η之頭部nb—同進入打入通路28内，其結果， 便不會藉由撞針n同時打擊2支打入具η、 如圖4所示，將通路形成構件23與釘匣4藉由固定螺釘 30 對底板22鎖緊而相互結合。兩個固定螺釘3〇、3〇插 ^-於刀別裝著於底板22之插通套管31之内周侧。兩個插通 套管31、31貫通通路形成構件23 ,且於打入具供給方 向後側（釘匣4側）突出。於該突出部份之外周側，分別裝著 有固定軸環32。在夾入於兩個插通套管31、31及固定軸環 32、32之間之狀態下，藉由將螺帽33分別於鎖入固定螺釘 30、30，使釘匣4之安裝基部4a對底板22結合。再者，藉 此使通路形成構件23對底板22及釘匣4固定。 如此之底板22與通路形成構件23與安裝基部4a，藉由以 相互重合狀態或相互依循狀態結合，於打入部，針匿4 結合，且沿著通路形成構件23與安裝基部4a之間，形成打 入通路28。連結打入具N之各打入具n ,經過安裝基部仏之 供給口 S供給於打入通路28内。釘匣4之供給方向後側結合 於把手部3之前端侧。 如圖6所示之釘匣4，具備引導連結打入具N之各打入具n 143292.doc -11 · 201029813 之頭部nb之引導構件仆。該引導構件4b，係具有剖面^ 形者’在其開口側向下方之狀態下沿著釘匣之上部安 裝。各打入具n，以其頭部nb懸掛於該引導構件4b之狀 態，裝填於該釘H4内，且在懸掛狀態下向供給方向（圖6 中之左方）送進。該引導構件4b之前端部至打入通路Μ之 正刖方。但，如圖3所示供給於打入通路28之打入具n及其 後側之合计約3支打入具η〜η，其頭部❿成為從該引導構件 4b脫離之狀態。因此，供給於具有相對頭部吡之直徑μ之 大寬度尺寸D之打入通路28之打入“之主要的該頭部心， 需要限定通路寬度方向之位置。因此，本實施形態中，供 給口 s之上部，設有用以限制打入通路28内之打入具n之頭 部nb之通路寬度方向之位置之限制部4〇。 本實施形態之情形中，如圖3所示之限制部4〇，具備2個 限制突起4卜。該2個限制突起41、41，一體設於前述 前板25。2個限制突起41、41，沿著打入通路“於下方（射 出口 23a側）伸出。於打入通路28供給丨支打入具n，則限制 突起41、41變為位於其頭部此之兩側。兩個限制突起4ι、 41間之間隔（限制尺寸40a)，為用以使打入具η之頭部汕順 利通過之必要且充分的尺寸，以與釘匣4之頭部引導構件 4b大致相同之尺寸設定。藉由打入具η之供給方向位於頭 部nb左右之限制突起41、41，該打入具η之頭部汕，於打 入通路28之寬度方向中央保持位置。 此處，如圖7所示，假設限制部4〇(限制突起4ι、斗”不 存在，則供給於打入通路28内之打入具n’為連結打入具n 143292.doc -12- 201029813 之最後之打入具1!之情形時，由於相對其供給方向後侧之 打入具（追加裝填之其他連結打入具之最初之打入具），未 藉由導線等連結構件相互連接，因此該最後之打入具未藉 由其後側之打入具保持位置。因此，該最後之打入具η在 以較（必要以上地）寬幅地形成之打入通路28内，於寬度方 •向（圖7中上側或下側）變得容易偏差位置。若供給於打入通 路28内之最後之打入具η，於通路寬度方向位置偏差，則 藉由與此接近之追加裝填之其他連結打入具Ν之最初之打 _ 入具η之送進方向之彈簧彈推力，按壓於打入通路側之其 頭部nb亦變得容易進入通路28内。若2支打入具η、η之頭 部nb、nb位於打入通路28内，則有藉由撞針丨〗被一次打擊 之情形。若2支打入具η、η被一次打擊，則該等於打入通 路28内阻塞，成為所謂故障之原因。 與此相對如前述’在本實施形態之打入部2〇，供給於打 入通路28内之1支打入具η之頭部nb，藉由限制突起41、 41 ’於打入通路28之寬度方向中央保持位置。因此，由於 下一個打入具η之頭部nb不會推出至打入通路28内，因此 藉由撞針11確實地僅1支打入具η被打擊^由於如此防止2 • 支打入具同時被打擊（打擊2支），因此不會有發生如上之故 障之虞。 根據以上所說明之本實施形態之打入部2〇，構成打入通 路28之通路形成構件23 ’作為所謂之鈑金構件，為確保在 其上之撞針11之主要的抗彎強度而設定為寬幅，其結果即 使有打入通路寬幅地形成之情形，向供給於該打入通路28 143292.doc • 13- 201029813 内之打入具η之頭部nb之通路寬度方向之位置偏差，亦受 限而保持於通路寬度方向之中央。因此，由於防止下一個 打入具η之頭部nb伸出至打入通路28内，因此藉由撞針 11，2支打入具η、η不會被同時打擊，進而可防止稱作所 謂故障之釘堵塞。 如此，根據本實施形態之打入部20，即使採用將打入通 路28寬幅地設置，確保撞針11之強度之構造，由於打入具 η藉由限制部40保持位置於打入通路寬度方向中央，故不 會發生2支打入具η、η同時被打擊之故障之虞，從而構成 ❿ 通路形成構件23等之打入通路28之構件，可作為所謂之鈑 金零件’據此，可謀求該打入部20甚至打入工具i之低成 本化。The piston ίο is housed in a cylinder 12 housed in the same body portion 2. It is installed from the lower center of the piston 10 for striking the striker with the n to extend downward. The lower side of the striker U enters the drive path 28 of the drive portion 2''. Details of the entry unit 2 will be described later. The upper chamber of the cylinder 12 above the main body portion 2 becomes the combustion chamber i2a. In the combustion chamber 12a, a mixing fan 13 for mixing the supplied combustible gas and air is disposed. The scramble fan 13 is rotated by the fan motor 14. The flammable gas is supplied quantitatively by the cut type gas cylinder 15. Also, a spark plug 16 is disposed in the combustion chamber 12a. 2 The driving portion 20 is provided with a contact rocker 21β which is supported to be vertically displaceable along the driving portion 20. When the contact rocker 21 is moved to the lower end position, the lower end portion thereof is protruded from the lower end of the driving portion 20 by a certain size. The upper portion of the contact rocker 21 is connected to the movable cylinder 6 which is movably mounted in the main body portion 2 via the intermediate rocker 17. Before the driving operation, if the lower end portion of the contact rocker 21 is pressed against the object W to be moved upward, the movable steam red 6 is integrally moved upward to close the combustion chamber (3). At the same time, four burners of flammable gas are injected from the gas cylinder Μ into the combustion chamber 12a, and the fan is turned on _ 142292.doc 201029813, and the fan motor 14 is started, whereby the stirring fan 13 is rotated and supplied by stirring. Flammable gas and air. After η, the switch in the form of a trigger disposed at the base of the handle portion 3 is shaken and pulled, and the ignition switch 丨9 is opened to generate a spark in the combustion chamber for 1 h, thereby igniting the flammable gas instantaneously. Combustion, and the piston 10 is moved downward by its thrust. When the piston is squatting, the striker 丨丨 is integrated into the driving passage 28 to move downward, and the lower end of the driving direction hits the head with the head, and the driving of the one is driven into the head. The lower end (the ejection opening 23a) of the portion 2 is punched out, and the object W is driven. The magazine 4 is filled with a plurality of punches η~η. The plurality of punching members n to n are loaded by a joint member (not shown) such as a tape-like adhesive tape which is joined in parallel to form a so-called joint punching tool N. Figure 2 shows the indentation of n. Each of the punching members η is a nail having a shaft portion na and a flange-shaped head portion nb. The rear side of the supply direction of the head nb has a notch (notch ^) as indicated by a dotted line at 2 o'clock. As shown in the figure, each of the driving members has n-type so that the notches of the head portion nb are called in the state of the rear side in the supply direction and are coupled to each other. In addition, the adjacent driving members η and η as shown in FIG. 1 are arranged such that the heads nb and nb do not interfere with each other, and the driving members η in the supply direction are shifted in the upper direction in the axial direction to make the head nb. Extending above the head nb of the punching tool on the front side of the feed direction is combined in this overlapping state. Therefore, in the state of being loaded in the magazine 4, a stepped state in which the n to n series is shifted toward the rear side in the supply direction and the thickness of only the head portion nb is shifted to the upper side is joined, thereby making the adjacent punching device η η is combined in a state in which the shaft portions na and na are close to each other without a gap. In this specification, such a plurality of branches are driven into a high density 143292.doc -8- 201029813 and (4) combined into a _, specifically called a high-density link with N. Then enter. The details of 卩20 are shown in Fig. 3. The driving portion 2 is disposed at the lower portion of the cylinder 12. Below the I], the women's wearer has an annular damper 27 that limits the position of the lower end of the piston 10 and mitigates the impact at the lower end position. In the center of the lower surface of the cylinder 12 of the inner peripheral hole of the damper 27, a substantially circular insertion opening 12b for mainly inserting the striker 11 is provided. Below the steam red 12, a front plate 25 having a substantially annular shape is mounted. The front plate 25 is fixed to the underside of the cylinder bore 2 by means of three fixed nails 26 26 . The striker 丨 passes through the inner peripheral side of the front plate 25 and the insertion opening nb of the cylinder 12, and protrudes into the driving passage 28 of the driving portion 20 below the striker. Into. The crucible 20 has a structure in which the bottom plate 22 and the passage forming member 23 called the striker guide plate are placed in a state of being overlapped with the mounting base portion 4a of the magazine 4 or in a state of leaning against each other. The bottom plate 22 is integrally provided at a lower portion of the cylinder 12 of the body portion 2. The bottom plate 22 is provided in a state of protruding from the lower side of the cylinder through the inner side of the front plate 25 to the lower side. The aforementioned contact rocker 2 j is disposed to be movable up and down along the outer side surface (the left side surface in FIG. 3) of the bottom plate 22. A passage forming member 23 is attached to the inner surface side of the bottom plate 22 (the right side surface of Fig. 3). The passage forming member 23 is a so-called sheet metal part produced by press working or punching a material such as a steel plate, and has a length from the insertion port 12b of the cylinder 12 to the lower end portion of the bottom plate 22, and a width substantially the same as that of the bottom plate 22. . As shown in FIG. 4, a driving path 28 is formed along the center in the width direction of the passage forming member 23 over the entire length direction thereof. I43292.doc 201029813 of the driving path 28 The front end portion, that is, the lower end of the passage forming member 23, corresponds to the ejection opening 23a of the driving member η. The driving path 28 is formed into a relatively wide cross-sectional rectangle with the width dimension D and the depth dimension ' of the insertable striker 11'. As described above, the passage forming member 23 is a so-called sheet metal member, and the driving path 28 is formed as a relatively simple sectional rectangle as shown in Figs. Further, the striker has a relatively simple cross-sectional rectangle which is inserted into the passage 28 in correspondence with this, and has a cross-sectional rectangle of the same width mainly for ensuring the bending strength thereof. The width dimension D of the driving path 28 as shown in FIG. 6 is set to be larger than the diameter nd (refer to FIG. 2) of the head nb of the supplied driver η, and cooperates with the needle 丨丨 is also set to a wide width to ensure its full flexural strength. In this specification, the width direction of the driving passage 28 or the width direction of the striker 是 refers to the driving direction with respect to the driving tool n (Fig. The direction orthogonal to the plane of the paper in 6 is the left-right direction, that is, the up-down direction in FIGS. 4 and 6, and the left-right direction in FIG. Further, the width direction of the path 28 is also referred to as the path width direction. In the range from the middle of the driving direction of the driving passage 28 to the outlet 23a, the top plate portion of the driving passage 28 (the portion facing the feeding port s) is provided with a semicircular cross section. The head clearance recess 23b. 3 and 6, when one of the driving members η is supplied into the driving path 28, the head portion nb of the driving member η abuts against the top plate portion of the driving path 28, and the other The front end side of the shaft portion na enters the head clearance recess portion 23b, and as a result, the shaft portion na is held in the driving passage 28 in a slightly inclined posture. 343292.doc •10- 201029813 After the striker 11 hits the driver η and starts to move down, the head nb immediately enters the head clearance recess 23b, thereby correcting the shaft portion na relative to The driving direction is straight forward, and the thrust of the striker 11 is in a state of acting on the center of the shaft portion na. In this state, the driver is struck from the shooting port 23a. When supplied into the driving path 28 in this manner, by restricting the amount of entry into the driving path 28 into the head portion nb, the head nb of the next driving member n is entered into the driving path 28 at the same time. As a result, the two punching members η are not hit by the striker n at the same time. As shown in Fig. 4, the passage forming member 23 and the magazine 4 are locked to each other by the fixing screws 30 to the bottom plate 22. The two fixing screws 3, 3 are inserted into the inner peripheral side of the insertion sleeve 31 of the bottom plate 22. The two insertion sleeves 31, 31 penetrate the passage forming member 23 and protrude toward the rear side of the feed device (the side of the magazine 4). On the outer peripheral side of the protruding portion, a fixed collar 32 is attached. In a state of being sandwiched between the two insertion sleeves 31, 31 and the fixed collars 32, 32, the mounting base 4a of the magazine 4 is fixed by locking the nuts 33 to the fixing screws 30, 30, respectively. The bottom plate 22 is joined. Further, the passage forming member 23 is fixed to the bottom plate 22 and the magazine 4 by this. The bottom plate 22 and the passage forming member 23 and the mounting base portion 4a are joined to each other in a state of being overlapped with each other or in a mutually following state, and are joined to the driving portion, and are disposed between the passage forming member 23 and the mounting base portion 4a. A drive path 28 is formed. Each of the punches n having the N is engaged, and is supplied to the driving path 28 through the supply port S of the mounting base. The rear side of the supply direction of the magazine 4 is coupled to the front end side of the handle portion 3. The magazine 4 shown in Fig. 6 is provided with a guide member for guiding the head nb of each of the punches n 143292.doc -11 · 201029813. The guide member 4b is attached to the upper portion of the magazine in a state in which the cross-section is lowered toward the opening side. Each of the punches n is loaded with the head nb in the state of the guide member 4b, loaded in the nail H4, and fed in the supply direction (to the left in Fig. 6) in the suspended state. The front end of the guiding member 4b is to the front side of the driving path Μ. However, as shown in Fig. 3, the total of the driving members n and the rear side of the driving path 28 and the rear side of the driving member n are about η to η, and the head ❿ is separated from the guiding member 4b. Therefore, the main head of the driving path 28 having the large width dimension D of the diameter μ of the head portion is required to define the position in the width direction of the passage. Therefore, in the present embodiment, the supply is provided. The upper portion of the port s is provided with a restricting portion 4 for restricting the position in the width direction of the head portion nb of the punching device n in the driving path 28. In the case of the present embodiment, the restricting portion is as shown in FIG. 4〇, the two restricting projections 4 are provided. The two restricting projections 41 and 41 are integrally provided on the front plate 25. The two restricting projections 41 and 41 are along the driving path “downward (the side of the ejection opening 23a) Extend. When the driving path 28 is supplied to the ramming member n, the restricting projections 41, 41 become located on both sides of the head. The interval between the two restricting projections 4, 41 (restricted size 40a) is a necessary and sufficient size for smoothly passing the head portion η into the ft, so as to be substantially the same as the head guiding member 4b of the magazine 4. Size setting. By the restriction projections 41, 41 having the supply direction of η located on the left and right of the head portion nb, the head portion 打 of the engagement η is held at the center in the width direction of the drive path 28. Here, as shown in FIG. 7, it is assumed that the restricting portion 4A (the restricting projection 4i, the bucket) does not exist, and the punching device n' supplied to the driving passage 28 is a joining punching tool n 143292.doc -12- In the case where the last one of the 201029813 is inserted into the 1!, the punching device is not connected to the rear side of the feeding direction (the initial punching device of the other connecting punching device of the additional loading), and is not connected to each other by a connecting member such as a wire. Therefore, the last punch has a holding position not by the punch on the rear side thereof. Therefore, the final punch η is in the drive path 28 formed in a wider (more than necessary) manner. The width direction (the upper side or the lower side in Fig. 7) is easily displaced. When the last punch η supplied to the driving path 28 is displaced in the width direction of the path, the append is added. The other link of the loading enters the first spring of the _ _ the spring-loading thrust of the feeding direction of the η, and the head nb pressed against the side of the driving passage also becomes easy to enter the passage 28. If two are driven in The heads nb and nb having η and η are located in the driving path 28, and there is a collision with the needle. In the case of one hit, if the two hits η and η are hit once, this is equal to the blockage in the drive path 28, which is the cause of the malfunction. In contrast, the above-mentioned "in the drive unit 2 of the present embodiment" One of the heads nb that is supplied into the driving path 28 is inserted into the head portion nb having the η, and the position of the protrusions 41, 41' is maintained at the center in the width direction of the driving path 28. Therefore, since the next driving member has the η The head nb is not pushed out into the driving path 28, so that only one of the strikers 11 is hit by the striker 11 and is struck. Therefore, since the hitter is hit (two hits), it is not The above-described failure occurs. According to the above-described driving portion 2A of the present embodiment, the passage forming member 23' constituting the driving passage 28 is a so-called sheet metal member, and the striker 11 is secured thereon. The main bending strength is set to a wide width, and as a result, even if a driving passage is formed in a wide range, the head nb which is supplied with the η in the driving path 28 143292.doc • 13-201029813 The positional deviation in the width direction of the path is also affected by However, since the head nb of the next driving member η is prevented from projecting into the driving path 28, the two pins η and η are not simultaneously In addition, the hitting portion 20 according to the present embodiment can be configured to ensure the strength of the striker 11 by the widening of the driving passage 28, and the hitting member η is used. Since the regulating portion 40 is held at the center in the width direction of the driving path, the two members are prevented from hitting the η and η at the same time, and the member of the opening path 28 of the dam passage forming member 23 or the like is formed. As a so-called sheet metal part, it is possible to reduce the cost of the entry unit 20 and even the tool i.
以上說明之實施形態可加入種種變更。例如，雖例示作 為構成打入通路28之構件，構成其頂部側之通路形成構件 23呈所謂之鈑金零件之情形，但以打入通路“之底部側 (釘匣4之安裝基部4a)為鈑金零件之情形，或以其雙方為鈑 金零件之情形，亦可同樣適用。 另，雖例示作為打入工具丨之氣體燃燒式之物，但並不 限於此’壓縮空氣驅動式之打入工具亦可同樣適用。 再者，作為打入具n，雖例示其頭部nb之後部μ缺口， 軸部na在密著狀態下結合之高錢連結打人具N，但具備 不-有缺π之圓形頭部之打人具，以—定間隔連結之連結 打入具’亦可同樣適用。 【圖式簡單說明】 I4-3292.doc -14- 201029813 圖1係本發明之實施形態之打入工具之全體以縱剖面顯 示之圖。 圖2係打入具之立體圖。 圖3係打入工具之縱剖面圖。 圖4係圖3之（IV )-(IV)線剖面箭視圖，係打入部及釘匣之 橫剖面圖。 圖5係打入部從圖3之箭頭（V)方向所視之圖。 圖6係顯示相對本實施形態之打入部之打入具之位置關 ❿ #之圖’本圖係打入部之橫剖面從與圖4相同方向所視之 圖。 ，相對打 圖7係顯示省略本實施形態之限制部之情形中 入部之打入具之位置關係之圖。 【主要元件符號說明】The embodiments described above can be modified in various ways. For example, the member forming the driving path 28 is a so-called sheet metal part, but the bottom side of the driving path (the mounting base 4a of the magazine 4) is a sheet metal. The case of the parts, or the case where both of them are sheet metal parts, may also be applied. In addition, although the gas burning type as the driving tool is exemplified, it is not limited to the 'compressed air driven type driving tool. In addition, as the punching tool n, the head portion nb is nicked in the back portion of the head, and the shaft portion na is joined in the close state with a high-priced link to hit the person N, but has a non-deficiency π The circular head of the hitting device can be equally applied to the connecting device with a constant spacing. [Simple description of the drawing] I4-3292.doc -14- 201029813 FIG. 1 is an embodiment of the present invention. Fig. 2 is a perspective view of the driving tool. Fig. 3 is a longitudinal sectional view of the driving tool. Fig. 4 is a sectional view of the (IV)-(IV) line of Fig. 3 Cross section of the driving part and the nailing. Figure 5 is the arrow of the driving part from Figure 3. Fig. 6 is a view showing the position of the driver of the driving portion of the embodiment. Fig. 6 is a view showing the cross section of the driving portion in the same direction as that of Fig. 4. Fig. 7 is a view showing the positional relationship of the punches of the entrance portion in the case where the restriction portion of the embodiment is omitted. [Description of main component symbols]
1 打入工具（氣體燃燒式打 2 本體部 3 把手部 4 釘匣 4a 安裝基部 4b 頭部引導部 5 開關搖桿 6 可動汽缸 10 活塞 11 撞針 12 汽缸 143292.doc -15· 釘機） 201029813 12a 12b 13 14 15 16 17 18 19 20 21 22 23 23a 23b 25 26 27 28 30 31 32 33 40 燃燒室 插通口 攪拌風扇 風扇馬達 儲氣瓶 火星塞 中間搖桿 風扇開關 點火開關 打入部 接觸搖桿 底板 通路形成構件 射出口 餘隙凹部 前板 固定螺釘 阻尼器 打入通路 固定螺釘 插通套管 固定軸環 螺帽 限制部 143292.doc -16· 201029813 40a 限制尺寸 41 限制突起 D 寬度尺寸 N 連結打入具（高密度連結打入具） η 打入具 na 轴部 nb 頭部 nc 後部（後部之缺口）1 Driving tool (gas burning type 2 body part 3 handle part 4 nail 匣 4a mounting base 4b head guiding part 5 switching rocker 6 movable cylinder 10 piston 11 striker 12 cylinder 143292.doc -15· nail machine) 201029813 12a 12b 13 14 15 16 17 18 19 20 21 22 23 23a 23b 25 26 27 28 30 31 32 33 40 Combustion chamber inlet port agitating fan fan motor gas cylinder spark plug middle rocker fan switch ignition switch driving part contact rocker Base plate passage forming member ejection port clearance concave portion front plate fixing screw damper driving passage fixing screw insertion sleeve fixing collar nut restriction portion 143292.doc -16· 201029813 40a restriction size 41 restriction protrusion D width size N connection hit Inlay (high-density link punch) η hit with na shaft part nb head nc rear part (back gap)
nd 頭部nb之直徑 S 供給口 W 打入對象物Nd The diameter of the head nb S Supply port W Into the object
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