1378015 六、發明說明：1378015 VI. Description of invention:
【發明所屬之技術領域】 且特別是有關於一 本發明是有關於一種燃燒式動力工具 種燃燒式動力工具之結構。 【先前技術】 燃燒式動力工具如燃燒式打釘器。燃燒式動力工具之作 主要是點燃在其燃燒室中混合之空氣及燃 體積膨服進而推動汽缸中之活塞，而將釘子或螺: = 件中。同時，汽財之氣體需排放至外面，使活塞得以復位。 因此，一般的燃燒式動力工具在汽缸上皆設 且為避免外界灰塵等髒污由排氣口進入汽缸内，於排氣口處設 置有由簧片及簽片板所組成的單向閥，讓氣體只能向外排放。 換句話說，當汽缸内之氣體壓力與外界壓力相同時，單向閱即 會關閉。此外，汽缸上於該單向閥相對應位置處配置有排氣 蓋，罩覆於排氣口上。排氣蓋一端以螺絲固定於汽缸另一端 以固定腳固定於簧片板。固定腳除固定排氣蓋外，也用來限制 排氣蓋於排氣時的震動幅度。排氣蓋—方面導引氣流方向另 一方面也限制單向閥之簧片於排氣時打開的幅度，避免簧片打 開的幅度過大，久而久之影響單向閥的可靠度。 然而，每一次氣體燃燒膨脹推動活塞後，氣體由排氣口經 由單向閥排出，其中，氣體流經簧片板時會造成排氣蓋的震 動，而長期的震動容易造成排氣蓋的固定腳斷裂，使得排氣蓋 的一鳊呈現未被固定的狀態。排氣蓋之固定腳斷裂後，不僅使 得排氣蓋在每一次的排氣震動幅度更大，也會導致簧片的打開 1378015 幅度未受㈣而越開越大，進而影響簧片的可靠度〃 因此，需要一種燃燒式動工士 的幅度受到限制’避免排氣蓋斷裂=震動時 也保持單向閥的可靠度。 延長排亂盍胥命。進而 【發明内容】 綜上所述，本發明之—能军 且社槿，以;樣就疋在提供一種燃燒式動力工 =構㈣件抵住排氣蓋，來控制排氣蓋震動的 發生排氣蓋斷裂的情形。 避免 =本^之上述態樣，提出__種燃燒式動力卫具結構， 且气缸:有：氣蓋、固定件與抵件。汽缸位於殼體内， 1 。排氣蓋則罩覆於排氣口外。而固定件位於 2羞之-端，用以將排氣蓋固定於仏上。抵件職 内面，用以抵住排氣蓋。 t發明的另-態樣是在提供一種燃燒式動力工具結構以 广蓋上之突出部與殼體相互抵頂，來控制排氣蓋震動的幅 度’避免發生排氣蓋斷裂的情形。 根據本發明之上述態樣，提出一種燃燒式動力工具結構， 包含殼體、汽缸、排氣蓋、固定件與突出部。汽紅位於殼體内， j汽紅具有排氣口。排氣蓋翠覆於汽紅之排氣口外，且排氣蓋 一端具有鎖孔，而相鄰鎖孔之排氣蓋兩側具有固定腳。固定件 則穿過排氣蓋之鎖孔將排氣蓋固定於汽缸上。突出部為一體成 型於排氣蓋上，且突出部抵頂於殼體内面。 應用本發明之燃燒式動力工具結構，以殼體上之抵件或排 氣蓋上之突出部限制排氣蓋震動的幅度，不僅可避免排氣蓋斷 1378015 • 裂之可能，也可將排氣蓋與殼體間的間隙縮小，但不會影響排 氣面積及燃燒式動力工具之組裝。 - 【實施方式】 目前限制排氣蓋震動幅度的作法多為將殼體與排氣蓋間 的間隙縮小，也就是直接使排氣蓋的震動空間縮小來限制排氣 蓋的震動幅度，避免排氣蓋斷裂《然而，若殼體與排氣蓋間的 間隙縮的不夠，則無法達到限制排氣蓋震動的幅度。反之，若 #將殼體與排氣蓋間的間隙縮的太小，完全限制排氣蓋的震動幅 度，則又會影響氣體排放的截面積，進而影響氣體排放的效 果，也會增加組立的困難。 ，- 另外的作法是增加排氣蓋固定腳的寬度或數量，然而固定 _ 腳的寬度或數量的增加相對會減少氣體的排氣面積，影響氣體 排放的效果。又一種限制排氣蓋震動幅度的作法為直接增加排 氣蓋的厚度與重量，使排氣蓋較不容易震動。然而，增加排氣 蓋的重量也相對增加整個燃燒式動力工具的重量，進而造成使 φ 用者操作上的不方便》 有鑑於上述問題，在本發明的實施例令提出一種燃燒式動 力工具結構，利用抵件抵住排氣蓋，以限制排氣蓋的.震動幅度。 請參照第1圖，其繪示依照本發明一實施例的一種燃燒式 動力工具結構側面剖示圖。燃燒式動力工具結構包含殼體 11 〇、汽虹120、排氣蓋130、固定件140與抵件i5〇。 . 〜缸120設置於殼體110内，於汽缸120上具有排氣口 122，而排氣口 122處設置有排氣板124、簧片板125與簧片 126。 ’ 6 I378〇15 . 第2圖為繪示第1圖不包含抵件之燃燒式動力工具結構的 * 立體分解圖。請同時參照第1圖及第2圖。排氣板124置於簧 ’ 片板I25與汽缸120間，而簧片板125上則設有簧片126，並 ·-於簧片126上罩覆排氣蓋130。因此，於燃燒式動力工具受熱 瞬間體積膨脹進而推動汽缸12〇中之活塞128時，簧片126會 因汽缸120内之氣體壓力大於外界而開啟，使氣體排出，活塞 128得以復位。而當汽缸12〇内之氣體壓力與外界壓力相同時， 簧片126即會關閉’停止氣體排放。 Φ 換句話說，如第1圖所示.，排氣蓋130即相對罩覆於排氣 口 122外。請參照第3圖，其係繪示第i圖中排氣蓋之立體示 意圖。排氣蓋130 —端具有鎖孔132，相鄰鎖孔132之排氣蓋 130兩側及相對於鎖孔132的排氣蓋13〇對邊皆具有固定腳 134。 如第2圖所示，固定件14〇為螺絲，其穿過排氣蓋13〇之 鎖孔132、簧片126及簧片板125之一端，一併將排氣蓋13〇、 簧片126及簧片板125固定於汽缸12〇上。而排氣蓋之固定腳 φ 134則可嵌入簧片板125以將排氣蓋130另一端固定。另外， 簧片板125另一端則以螺絲129固定於汽缸上。由於燃燒式動 力工具作動時，汽缸12〇中的氣體壓力大於外界，因此每一次 氣體通過排氣口棑放時，皆會造成排氣蓋13〇震動。 如第1圖所示，抵件150位於殼體110之内面，相對位於 排氣蓋130上方。抵件15〇可為由殼體11〇延伸出之凸肋，抵 於排氣蓋U0上。第4圖係繪示第1圖燃燒式動力工具結構之 正面剖示圖。請同時參照第i圖與第4圖，於此實施例中，抵 件150為一個凸肋，位於排氣蓋13〇具有固定腳134 一端之上 方。以抵件150與排氣蓋130之固定腳134共同限制排氣蓋13〇 7 1378015 .的震動幅度。或者，抵件150也可為數個凸肋或凸塊位於排 '；氣蓋130具有固定_ 134 一端上之兩側。上述抵件15〇之位置 .·僅為舉例，抵件150可位於殼體上相對排氣蓋之適當位置。 - 此外，抵件150與排氣蓋間具有空隙，使得燃燒式動 力工具排氣時，排氣蓋130仍然有震動的空間以增加排氣面 積，但又因有抵件150抵於排氣蓋130上方，所以排氣蓋13〇 的震動空間受到限制，而不會過度拉扯固定腳134，進而造成 固定腳134斷裂。也因此於排氣時，排氣口 122上之簧片126 *的打開幅度可完全的受到排氣蓋13〇之限制，就算長期使用也 不會影響簧片126的可靠度。 、另外，由於燃燒式動力工具主要為氣體受熱瞬間體積膨脹 - 進而推動〉飞缸中之活塞，每一次的作動皆會發出爆破聲響。因 此，如第1圖所示，排氣蓋130内之固定腳134端可設置吸音 棉160，以降低燃燒式動力工具作動時所發出之聲響。 第5圖係繪示依照本發明另一實施例的燃燒式動力工具結 構之側面剖示圖。如第5圖所示，燃燒式動力工具結構同樣包 •含有殼體210、汽缸220、排氣蓋230、固定件240與抵件250。 所有結構皆與前述實施例相似，差別在於燃燒式動力工具結構 I具有抵件250位於排氣蓋23〇上方，因此排氣蓋23〇僅以固 疋件240固定於汽& 22〇上，排氣蓋23〇不具有固定腳。而在 此燃燒式動力工具結構中僅以抵件25〇限制排氣蓋23〇的震動 幅度。 -第6圖係繪示依照本發明又一實施例的燃燒式動力工具結 冓之侧面剖示圖。如第6圖所示，燃燒式動力工具結構包含殼 體310、汽缸320、排氣蓋330、突出部336與固定件34〇。此 實施例中之汽缸32〇以及固定件34〇與前述實施例相同，不在 此重複描述。 f氣蓋330則罩覆於排氣口 322外。第7圖係繪示第6圖 '中排乳蓋之立體示意圖。如第7圖所示，排氣蓋330 —端具有 ·-鎖孔332，而相鄰鎖孔332之排氣蓋330兩側以及排氣蓋鎖孔 =2之對邊皆具有固定腳334。排氣蓋⑽上具有一體成型之 =出部336。如第7圖所示，突出部別為—凸塊位於排氣 ，=30上。或者，突出部336也可為一個或數個凸肋，跨於排 氣蓋330上，亦或是突出部336為數個凸塊，位於排氣蓋33〇 _ -有固又腳334 -端上之兩側。上述突出部35〇之位置僅為舉 T ’突出部336可位於排氣蓋上適當位1。當排氣蓋330因排 氣而震動時，排氣蓋33〇之突出部336便會抵頂於殼體之 - 内面，而限制排氣蓋330之震動幅度。 . .請參照第6»。突出部336與殼體31。間具有空隙。於燃 ，式動力工具排氣時，排氣蓋33〇仍然有震動的空間以增加排 氣面積’但突出部336可抵頂於殼體31〇之内面，使得突出部 说可與固定聊334共同限制排氣蓋33〇之震動幅度，而不會 • 過度拉扯固定腳334,進而造成固定腳334斷裂。 矛J用本發明之燃燒式動力工具結構的優點在於： 第一，殼體與排氣蓋間具有抵件，或是排氣蓋上具有突出部， 可限制排氣蓋於燃燒室動力工具排氣時的震動幅度，但不會影響 使用者組立與使用燃燒室動力工具。 曰 第二，抵件與排氣蓋間或突出部與殼體間仍具有間隙。因此， -排氣蓋的震動幅度雖然受到限制，但仍有—定的可震動幅度，以 增加排氣面積。 第三，由於排氣蓋的震動幅度受到限制，可避免排氣蓋因長 9 1378015 •期震動㈣度她固定腳，造定腳斷裂^因此可使得排氣口 ·. 之簧片也受到保護，減少排氣蓋與簧片的損耗。 • 雖然本發明已以諸實施·露如上，然其並非用以限定本發 任何4¾此技藝者’在不脫離本發明之精神和範圍内當可 作各種之更動_飾i此本發明之保護範g當視後附之申請專 利範圍所界定者為準。 【圖式簡單說明】 為讓本發明之上述和其他目的、特徵、優點與實施例能更明 顯易懂’所附圖式之說明如下： 第1圖係繪示依照本發明一實施例的一種燃燒式動力工具 - 結構側面剖示圖。 第2圖係繪示第1圖不包含抵件之燃燒式動力工具結構的 立體分解圖。 第3圖係繪示第1圖中排氣蓋之立體示意圖。 第4圖係繪不第1圖燃燒式動力工具結構之正面剖示圖。 •第5圖係繪示依照本發明另一實施例的燃燒式動力工具結 構之侧面剖示圖。 第6圖係繪示依照本發明又一實施例的燃燒式動力工具結 構之側面剖示圖。 .第7圖係繪示第6圖中排氣蓋之立體示意圖。 120 :汽缸 124 :排氣板 【主要元件符號說明】 U0 :殼體 122 :排氣口 1378015 125 ： 簧片板 126 ： 128 ： 活塞 129 ： 130 : 排氣蓋 132 ： 134 ： 固定腳 140 ： 150 : 抵件 160 ： 210 ·· 殼體 220 ： 230 ： 排氣蓋 240 : 250 ： 抵件 310 : 320 ： 汽缸 330 : 332 ： 鎖孔 334 ： 336 ·· 突出部 340 簧片 螺絲 鎖孔 固定件 吸音棉 汽缸 固定件 殼體 排氣蓋 固定腳 固定件BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a structure of a combustion type power tool. [Prior Art] A combustion type power tool such as a combustion type nailer. Combustion power tools are mainly used to ignite the air mixed in the combustion chamber and the volume of the fuel to push the piston in the cylinder, and the nail or screw: in the piece. At the same time, the gas of the steam is discharged to the outside, so that the piston can be reset. Therefore, a general combustion type power tool is provided on the cylinder and is provided with a check valve composed of a reed and a signature plate at the exhaust port to prevent external dust and the like from entering the cylinder through the exhaust port. Let the gas only discharge to the outside. In other words, when the gas pressure in the cylinder is the same as the external pressure, the one-way reading will be closed. Further, an exhaust cover is disposed on the cylinder at a position corresponding to the one-way valve, and the cover is overlaid on the exhaust port. One end of the vent cap is screwed to the other end of the cylinder to fix the foot to the reed plate. In addition to fixing the exhaust cover, the fixed foot is also used to limit the vibration amplitude of the exhaust cover when it is exhausted. The venting cap—in the direction of the airflow direction, also limits the extent to which the reed of the one-way valve opens during venting, avoiding excessive opening of the reed, which affects the reliability of the one-way valve over time. However, after each gas combustion expansion pushes the piston, the gas is discharged from the exhaust port through the one-way valve, wherein the gas flowing through the reed plate causes vibration of the exhaust cover, and long-term vibration easily causes the exhaust cover to be fixed. The foot breaks, causing a vent of the venting cap to assume an unfixed state. After the fixed foot of the venting cover is broken, not only the venting cover has a greater amplitude of the venting vibration at each time, but also the opening of the reed is 1378015, and the amplitude is not increased by (4), thereby affecting the reliability of the reed. 〃 Therefore, there is a need to limit the extent of a combustion-type motivator to avoid the rupture of the venting cover = the reliability of the one-way valve while vibrating. Extend the commandment. Further, in summary, the invention is capable of controlling the occurrence of vibration of the exhaust cover by providing a combustion type power plant (four) piece against the exhaust cover. The vent cover is broken. Avoid = the above aspects of this ^, put forward __ kinds of burning power guard structure, and cylinder: there are: gas cover, fixed parts and fasteners. The cylinder is located inside the housing, 1 . The exhaust cover is overlaid outside the exhaust port. The fixture is located at the 2 shy end to secure the vent cap to the cymbal. The inner surface of the counter is used to resist the exhaust cover. Another aspect of the invention is to provide a combustion power tool structure in which the projections of the wide cover abut against the housing to control the amplitude of the shock of the exhaust cover to avoid the occurrence of breakage of the exhaust cover. According to the above aspect of the invention, a combustion power tool structure is proposed, comprising a housing, a cylinder, an exhaust cover, a fixing member and a projection. The steam red is located in the housing, and the j red has an exhaust port. The exhaust cover covers the exhaust port of the steam red, and the exhaust cover has a lock hole at one end, and the exhaust cover of the adjacent lock hole has a fixed leg on both sides. The fixing member is fixed to the cylinder through the locking hole of the exhaust cover. The protruding portion is integrally formed on the exhaust cover, and the protruding portion abuts against the inner surface of the housing. By applying the combustion type power tool structure of the invention, the protrusion on the casing or the protrusion on the exhaust cover limits the amplitude of the vibration of the exhaust cover, thereby avoiding the possibility of the exhaust cover breaking 1378015. The gap between the gas cap and the housing is reduced, but does not affect the exhaust area and the assembly of the combustion power tool. - [Embodiment] At present, the method of limiting the vibration amplitude of the exhaust cover is mostly to reduce the gap between the casing and the exhaust cover, that is, to directly reduce the vibration space of the exhaust cover to limit the vibration amplitude of the exhaust cover, and avoid the arrangement. Gas cap breakage "However, if the gap between the casing and the exhaust cap is insufficiently reduced, the magnitude of the shock of the exhaust cap cannot be reached. On the other hand, if # the gap between the casing and the exhaust cover is shrunk too small, completely limiting the vibration amplitude of the exhaust cover, it will affect the cross-sectional area of the gas discharge, thereby affecting the effect of gas discharge, and also increasing the assembly. difficult. , - Another approach is to increase the width or number of feet of the vent cover. However, the increase in the width or number of feet _ feet will reduce the gas venting area and affect the gas discharge. Another way to limit the vibration amplitude of the exhaust cover is to directly increase the thickness and weight of the exhaust cover so that the exhaust cover is less susceptible to vibration. However, increasing the weight of the venting cover also increases the weight of the entire combustion type power tool, thereby causing inconvenience to the user's operation. In view of the above problems, a combustion power tool structure is proposed in an embodiment of the present invention. Use the abutment against the exhaust cover to limit the vibration amplitude of the exhaust cover. Referring to Figure 1, there is shown a side cross-sectional view of a structure of a combustion power tool in accordance with an embodiment of the present invention. The combustion power tool structure includes a housing 11 〇, a steam rainbow 120, a vent cover 130, a fixing member 140, and a resisting member i5〇. The cylinder 120 is disposed in the casing 110, has an exhaust port 122 on the cylinder 120, and the exhaust port 122 is provided with an exhaust plate 124, a reed plate 125 and a reed 126. ' 6 I378〇15 . Fig. 2 is an exploded perspective view showing the structure of the combustion type power tool which does not include the abutment in Fig. 1. Please refer to both Figure 1 and Figure 2. The exhaust plate 124 is disposed between the spring plate I25 and the cylinder 120, and the reed plate 125 is provided with a reed 126, and the reed cover 130 is covered on the reed 126. Therefore, when the combustion power tool is heated and the volume is expanded to push the piston 128 in the cylinder 12, the reed 126 is opened because the gas pressure in the cylinder 120 is greater than the outside, so that the gas is discharged and the piston 128 is reset. When the gas pressure in the cylinder 12 is the same as the external pressure, the reed 126 is closed to stop the gas discharge. Φ In other words, as shown in Fig. 1, the exhaust cover 130 is opposed to the outside of the exhaust port 122. Please refer to Fig. 3, which is a perspective view showing the exhaust cover of Fig. i. The vent cover 130 has a locking hole 132 at its end, and the venting cover 130 adjacent to the locking hole 132 and the venting cover 13 opposite the locking hole 132 have a fixing leg 134. As shown in FIG. 2, the fixing member 14 is a screw which passes through one of the locking hole 132 of the vent cover 13, the reed 126 and the reed plate 125, and the exhaust cover 13 and the reed 126 are provided. And the reed plate 125 is fixed to the cylinder 12 。. The fixing leg φ 134 of the venting cover can be inserted into the reed plate 125 to fix the other end of the venting cover 130. In addition, the other end of the reed plate 125 is fixed to the cylinder by a screw 129. Since the gas pressure in the cylinder 12 is larger than the outside when the combustion type power tool is actuated, each time the gas is discharged through the exhaust port, the exhaust cover 13 is vibrated. As shown in Fig. 1, the abutting member 150 is located on the inner surface of the housing 110 and is located above the exhaust cover 130. The abutting member 15 is a rib extending from the casing 11 to abut against the vent cover U0. Fig. 4 is a front cross-sectional view showing the structure of the combustion type power tool of Fig. 1. Referring to Figures i and 4, in this embodiment, the abutment 150 is a rib located above the end of the vent cap 13 固定 having the fixed leg 134. The abutting member 150 and the fixing leg 134 of the exhaust cover 130 together limit the amplitude of the vibration of the exhaust cover 13 〇 7 1378015 . Alternatively, the abutting member 150 may be a plurality of ribs or bumps located in the row '; the gas cap 130 has two sides on one end of the fixed_134. The position of the abutting member 15〇. For example only, the abutting member 150 may be located at an appropriate position on the housing relative to the exhaust cover. - In addition, there is a gap between the abutting member 150 and the exhaust cover, so that when the combustion power tool is exhausted, the exhaust cover 130 still has a space for vibration to increase the exhaust area, but also has a resisting member 150 against the exhaust cover. Above 130, the vibration space of the exhaust cover 13 is restricted without excessively pulling the fixed leg 134, thereby causing the fixed leg 134 to break. Therefore, when the exhaust is exhausted, the opening width of the reed 126* on the exhaust port 122 can be completely restricted by the exhaust cover 13〇, and the reliability of the reed 126 is not affected even if it is used for a long period of time. In addition, since the combustion type power tool mainly expands the volume of the gas in an instant of heating - and then pushes the piston in the flying cylinder, each time the action is performed, a blasting sound is emitted. Therefore, as shown in Fig. 1, the sound absorbing cotton 160 may be provided at the end of the fixing leg 134 in the venting cover 130 to reduce the sound of the burning power tool when it is actuated. Figure 5 is a side cross-sectional view showing the structure of a combustion power tool in accordance with another embodiment of the present invention. As shown in Fig. 5, the combustion power tool structure also includes a housing 210, a cylinder 220, an exhaust cover 230, a fixture 240, and a biasing member 250. All the structures are similar to the previous embodiment, with the difference that the combustion power tool structure I has the abutting member 250 located above the exhaust cover 23〇, so that the exhaust cover 23〇 is only fixed to the steam & 22〇 by the fixing member 240, The vent cover 23 does not have a fixed foot. In this combustion type power tool structure, only the contact member 25 〇 limits the vibration amplitude of the vent cover 23 。. - Figure 6 is a side cross-sectional view showing the combustion power tool in accordance with still another embodiment of the present invention. As shown in Fig. 6, the combustion power tool structure includes a casing 310, a cylinder 320, an exhaust cover 330, a projection 336, and a fixing member 34A. The cylinder 32A and the fixing member 34'' in this embodiment are the same as those of the foregoing embodiment, and the description thereof will not be repeated. The f gas cap 330 is overlaid outside the exhaust port 322. Figure 7 is a perspective view of the middle row of the milk cap shown in Figure 6. As shown in Fig. 7, the exhaust cover 330 has a --lock hole 332 at its end, and the opposite sides of the exhaust cover 330 of the adjacent lock hole 332 and the opposite sides of the vent cover lock hole 2 have fixed legs 334. The exhaust cover (10) has an integrally formed = out portion 336. As shown in Fig. 7, the protrusion is - the bump is located at the exhaust, = 30. Alternatively, the protrusion 336 may also be one or several ribs, spanning the vent cover 330, or the protrusion 336 may be a plurality of bumps located on the vent cover 33 〇 _ - solid and leg 334 - end On both sides. The position of the above-mentioned projecting portion 35 is only a suitable position 1 on the exhaust cover for the T' projection 336. When the vent cover 330 vibrates due to exhaust, the projection 336 of the vent cover 33 abuts against the inner surface of the housing to limit the amplitude of the shock of the vent cover 330. . Please refer to section 6». The protrusion 336 is with the housing 31. There is a gap between them. When the combustion type power tool is exhausted, the exhaust cover 33〇 still has a space for vibration to increase the exhaust area 'but the protrusion 336 can abut against the inner surface of the casing 31, so that the protrusion can be said to be fixed 334 The amplitude of the shock of the vent cover 33 is collectively limited without excessively pulling the fixed leg 334, thereby causing the fixed leg 334 to break. The utility model has the advantages that the structure of the combustion type power tool of the invention has the following advantages: First, there is a contact between the casing and the exhaust cover, or a protrusion on the exhaust cover can restrict the exhaust cover to the power tool row of the combustion chamber The amplitude of vibration during gas, but does not affect the user's ability to assemble and use the combustion chamber power tool.曰 Second, there is still a gap between the abutment and the vent cover or between the protrusion and the housing. Therefore, although the vibration amplitude of the exhaust cover is limited, there is still a certain vibration amplitude to increase the exhaust area. Thirdly, because the vibration amplitude of the exhaust cover is limited, it can be avoided that the exhaust cover is fixed by the length of the 13 1378015 (4) vibration, and the foot is broken. Therefore, the reed of the exhaust port can be protected. Reduce the loss of the exhaust cover and the reed. The present invention has been described in the above, and it is not intended to limit the scope of the present invention. The present invention can be modified in various ways without departing from the spirit and scope of the invention. Fan g shall prevail as defined in the scope of the patent application attached. BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, advantages and embodiments of the present invention will become more <RTIgt; Combustion Power Tool - Side profile view of the structure. Fig. 2 is a perspective exploded view showing the structure of a combustion type power tool which does not include a resisting piece in Fig. 1. Fig. 3 is a perspective view showing the exhaust cover of Fig. 1. Fig. 4 is a front cross-sectional view showing the structure of the combustion type power tool not shown in Fig. 1. Figure 5 is a side cross-sectional view showing the structure of a combustion power tool in accordance with another embodiment of the present invention. Figure 6 is a side cross-sectional view showing the structure of a combustion type power tool in accordance with still another embodiment of the present invention. Figure 7 is a perspective view showing the exhaust cover of Figure 6. 120: Cylinder 124: Exhaust plate [Main component symbol description] U0: Housing 122: Exhaust port 1378015 125: Reed plate 126: 128: Piston 129: 130: Exhaust cover 132: 134: Fixed foot 140: 150 : Abutment 160 : 210 · · Housing 220 : 230 : Exhaust cover 240 : 250 : Abutment 310 : 320 : Cylinder 330 : 332 : Keyhole 334 : 336 · · Protruding part 340 Reed screw lock hole fixing parts Cotton cylinder fixture housing vent cover fixing foot fixing
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