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1. 发明授权

US07500587B2 Combustion-type power tool 有权
标题翻译：燃烧式电动工具
公开(公告)号：US07500587B2
公开(公告)日：2009-03-10
申请号：US11542155
申请日：2006-10-04
申请人： Yoshitaka Akiba , Tomomasa Nishikawa , Kunio Yamamoto , Shinki Ohtsu , Haruhisa Fujisawa
发明人： Yoshitaka Akiba , Tomomasa Nishikawa , Kunio Yamamoto , Shinki Ohtsu , Haruhisa Fujisawa
IPC分类号： B25C1/08
CPC分类号： B25C1/08
摘要： A combustion-type power tool includes a housing, a cylinder head disposed at one end of the housing, a cylinder in the housing, a piston slidably disposed in the cylinder, and a driver blade connected to the piston. A combustion-chamber is provided in the housing, a fan is disposed in the combustion chamber, and a motor having an output shaft is coupled to the fan. A motor holder accommodates the motor, and the cylinder head is formed with a motor holder receiving portion in which the motor holder is slidably movably disposed. An elastic member is disposed in a gap formed between the motor holder and the motor holder receiving portion.
摘要翻译：燃烧式电动工具包括壳体，设置在壳体的一端的气缸盖，壳体中的气缸，可滑动地设置在气缸中的活塞以及连接到活塞的驱动器叶片。燃烧室设置在壳体中，风扇设置在燃烧室中，具有输出轴的电动机联接到风扇。电动机保持器容纳电动机，气缸盖形成有电动机保持器容纳部，电动机保持器可滑动地移动。弹性构件设置在形成在电动机支架和电动机支架接收部之间的间隙中。

2. 发明授权

US07131404B2 Combustion-type power tool having gas canister cooling arrangement 有权
标题翻译：具有气罐冷却装置的燃烧式电动工具
公开(公告)号：US07131404B2
公开(公告)日：2006-11-07
申请号：US11208586
申请日：2005-08-23
申请人： Tomomasa Nishikawa , Yoshitaka Akiba , Shoichi Hirai , Haruhisa Fujisawa
发明人： Tomomasa Nishikawa , Yoshitaka Akiba , Shoichi Hirai , Haruhisa Fujisawa
IPC分类号： F02B71/00 , F02P5/00
CPC分类号： B25C1/08
摘要： A combustion-type power tool having a cooling arrangement for cooling a gas canister. The tool includes a housing having a gas canister accommodating section in which a gas canister is accommodated. An air passage is defined between the gas canister accommodating section and the gas canister accommodated therein. The gas canister accommodating section is formed with an air inlet port in communication with the air passage for introducing air into the air passage. Since air flows along the gas canister, the gas canister can be cooled. If the tool is provided with a fan, the rotation of the fan causes air suction passing through the air passage.
摘要翻译：一种具有用于冷却气罐的冷却装置的燃烧型动力工具。该工具包括具有容纳燃气罐的气体容纳部分的壳体。在气体容纳部分和容纳在其中的气体罐之间限定一个空气通道。燃气罐容纳部形成有与空气通道连通的空气入口，用于将空气引入空气通道。由于空气沿着气罐流动，气罐可被冷却。如果该工具设置有风扇，则风扇的旋转引起通过空气通道的空气吸入。

3. 发明申请

US20060225675A1 Combustion type power tool having fin in low turbulent combustion region within combustion chamber 有权
标题翻译：燃烧式电动工具在燃烧室内的低湍流燃烧区域内具有翅片
公开(公告)号：US20060225675A1
公开(公告)日：2006-10-12
申请号：US11448756
申请日：2006-06-08
申请人： Tomomasa Nishikawa , Yoshitaka Akiba , Haruhisa Fujisawa
发明人： Tomomasa Nishikawa , Yoshitaka Akiba , Haruhisa Fujisawa
IPC分类号： F02B71/00 , B25C1/14 , B25C5/02
CPC分类号： B25C1/08
摘要： A combustion-type power tool includes a housing, a head portion, a cylinder disposed in the housing, and a push lever. A piston is reciprocally movable in the cylinder, and a combustion-chamber frame is disposed in the housing and abuttable on the head portion to provide a combustion chamber in cooperation with the head portion and the piston. A fuel supplying portion supplies the fuel into the combustion chamber, a motor is disposed at the head portion, and a fan is disposed in the combustion chamber and connected to an output shaft of the motor so as to promote turbulent combustion of an air-fuel mixture. The fan and the combustion-chamber frame define a high turbulent-combustion region and a low turbulent-combustion region, a fin of one shape is located within the low turbulent-combustion region, and another fin of another shape has a part thereof located in the high turbulent-combustion region.
摘要翻译：燃烧式电动工具包括壳体，头部，设置在壳体中的气缸和推杆。活塞在气缸中可往复运动，并且燃烧室框架设置在壳体中并抵靠在头部上，以与头部和活塞协作提供燃烧室。燃料供给部将燃料供给到燃烧室，电动机设置在头部，并且风扇设置在燃烧室中并连接到电动机的输出轴，以促进空气燃料的湍流燃烧混合物。风扇和燃烧室框架限定高湍流燃烧区域和低湍流燃烧区域，一个形状的翅片位于低湍流燃烧区域内，另一个形状的另一个翅片的一部分位于高湍流燃烧区域。

4. 发明申请

US20060144889A1 Combustion-type power tool with exhaust gas flow regulating rib 有权
标题翻译：具有废气流量调节肋的燃烧式电动工具
公开(公告)号：US20060144889A1
公开(公告)日：2006-07-06
申请号：US11311250
申请日：2005-12-20
申请人： Tomomasa Nishikawa , Yoshitaka Akiba , Shoichi Hirai , Haruhisa Fujisawa
发明人： Tomomasa Nishikawa , Yoshitaka Akiba , Shoichi Hirai , Haruhisa Fujisawa
IPC分类号： B21J15/28 , F02B71/00
CPC分类号： F02B63/02 , B25C1/08 , F02B71/04 , F02F1/065
摘要： A combustion-type power tool includes a cylinder and a combustion chamber frame disposed to surround the cylinder and movable along the cylinder. A combustion chamber is formed on top of the cylinder that accommodates a gaseous mixture of existing air in the combustion chamber and fuel injected therein from a gas cylinder. A spark plug generates a spark to combust the gaseous mixture in the combustion chamber. A trigger switch produces the spark in the spark plug when operated. A piston slidably moves along the inner surface of the cylinder and driven by combustion in the combustion chamber. A driving blade is secured to the piston for driving a fastener. A partition wall divides the inner space of the outer frame into a first space in which the cylinder and the combustion chamber frame are disposed and a second space in which the gas cylinder is disposed. The partition wall is formed with a through-hole through which the first space and the second space are in fluid communication with each other. A plurality of ribs is formed on the outer surface of the cylinder for regulating an exhaust gas flow generated by combustion of the gaseous mixture in the combustion chamber. With the ribs, the exhaust gas discharged from the combustion chamber is not directed toward the through-hole, thereby preventing the gas container from heating up.
摘要翻译：一种燃烧式电动工具包括一个气缸和一个燃烧室框架，该燃烧室框架设置成围绕气缸并沿气缸移动。燃烧室形成在气缸的顶部，其容纳燃烧室中的现有空气的气体混合物和从气瓶注入的燃料。火花塞产生火花以燃烧燃烧室中的气体混合物。触发开关在操作时产生火花塞中的火花。活塞沿着气缸的内表面滑动地移动，并通过燃烧室中的燃烧而驱动。驱动叶片固定在活塞上用于驱动紧固件。分隔壁将外框架的内部空间划分成其中设置有气缸和燃烧室框架的第一空间和设置气瓶的第二空间。分隔壁形成有通孔，第一空间和第二空间通过该通孔彼此流体连通。在气缸的外表面上形成多个肋，用于调节由燃烧室中的气体混合物的燃烧产生的废气流。利用肋，从燃烧室排出的废气不指向通孔，从而防止气体容器升温。

5. 发明授权

US07467739B2 Combustion-powered, fastener-driving tool generating sparks in succession when triggered 失效
标题翻译：燃烧动力的紧固件驱动工具在触发时连续产生火花
公开(公告)号：US07467739B2
公开(公告)日：2008-12-23
申请号：US11237860
申请日：2005-09-29
申请人： Haruhisa Fujisawa , Yoshitaka Akiba , Nobuhiro Takano , Kenro Ishimaru , Tomomasa Nishikawa
发明人： Haruhisa Fujisawa , Yoshitaka Akiba , Nobuhiro Takano , Kenro Ishimaru , Tomomasa Nishikawa
IPC分类号： B25C1/08
CPC分类号： B25C1/08
摘要： A combustion-powered, fastener-driving tool includes a cylinder and a combustion chamber disposed on top of the cylinder that accommodates a gaseous mixture of existing air in the combustion chamber and fuel injected therein. A spark plug generates a spark to combust the gaseous mixture in the combustion chamber. A trigger produces the spark in the spark plug when operated. A piston is movably supported in the cylinder and driven by combustion in the combustion chamber. A driving blade is coupled to the piston for driving a fastener. A spark controller is provided for generating a plurality of sparks in succession with the spark plug.
摘要翻译：燃烧动力的紧固件驱动工具包括气缸和设置在气缸顶部的燃烧室，其容纳燃烧室中的现有空气和喷射的燃料的气体混合物。火花塞产生火花以燃烧燃烧室中的气体混合物。触发器在操作时产生火花塞中的火花。活塞可移动地支撑在气缸中并由燃烧室中的燃烧驱动。驱动叶片联接到活塞以驱动紧固件。提供火花控制器用于与火花塞相继产生多个火花。

6. 发明申请

US20070227477A1 Combustion type power tool having buffer piece 有权
标题翻译：具有缓冲片的燃烧式电动工具
公开(公告)号：US20070227477A1
公开(公告)日：2007-10-04
申请号：US11802956
申请日：2007-05-29
申请人： Yoshitaka Akiba , Haruhisa Fujisawa , Tomomasa Nishikawa
发明人： Yoshitaka Akiba , Haruhisa Fujisawa , Tomomasa Nishikawa
IPC分类号： F02B71/04
CPC分类号： B25C1/123
摘要： A combustion-type power tool includes a housing, a cylinder disposed, a piston, and a cylinder head disposed at an end of the housing and having a wall portion extending in a direction perpendicular to an axial direction, the wall portion having an opening. A motor is disposed at the cylinder head and includes a motor body and a drive shaft extending from the motor body into a combustion chamber through the opening of the wall portion of the cylinder head, a fan is connected to the drive shaft to be rotatable within the combustion chamber, and an elastic member is disposed at the opening of the wall portion and has a sleeve portion extending in the axial direction. The sleeve portion has a through-hole through which the drive shaft extends, and an inner surface of the through-hole is tapered with respect to an outer surface of the drive shaft.
摘要翻译：一种燃烧式电动工具包括壳体，设置的气缸，活塞和设置在壳体的端部并具有沿与轴向垂直的方向延伸的壁部的气缸盖，壁部具有开口。电动机设置在气缸盖上，包括电动机主体和驱动轴，该电动机主体和驱动轴通过气缸盖的壁部分的开口从电动机主体延伸到燃烧室，风扇连接到驱动轴上以在内部可转动燃烧室和弹性构件设置在壁部的开口处并且具有沿轴向延伸的套筒部。套筒部分具有通孔，驱动轴穿过该通孔，并且通孔的内表面相对于驱动轴的外表面是锥形的。

7. 发明授权

US07225768B2 Combustion type power tool having buffer piece 有权
标题翻译：具有缓冲片的燃烧式电动工具
公开(公告)号：US07225768B2
公开(公告)日：2007-06-05
申请号：US11175176
申请日：2005-07-07
申请人： Yoshitaka Akiba , Haruhisa Fujisawa , Tomomasa Nishikawa
发明人： Yoshitaka Akiba , Haruhisa Fujisawa , Tomomasa Nishikawa
IPC分类号： F02B71/00 , B25C1/08
CPC分类号： B25C1/123
摘要： A combustion type power tool having an arrangement avoiding direct striking of a drive shaft against a cylinder head when combustion pressure is exerted. A motor is disposed at the cylinder head and includes a motor body and a drive shaft extending in an axial direction and protruding into a combustion chamber. A fan is connected to the drive shaft to be rotatable within the combustion chamber. A buffer piece made from an elastic material is supported to the cylinder head. The buffer piece is movable relative to the cylinder head in a direction substantially perpendicular to the axial direction. The buffer piece is formed with a through-hole through which the drive shaft extends.
摘要翻译：一种燃烧式电动工具，其具有当施加燃烧压力时避免驱动轴直接撞击气缸盖的装置。电动机设置在气缸盖上，包括电动机主体和沿轴向延伸并突出到燃烧室中的驱动轴。风扇连接到驱动轴以在燃烧室内旋转。由弹性材料制成的缓冲件支撑在气缸盖上。缓冲件可以在与轴向大致垂直的方向上相对于气缸盖移动。缓冲片形成有驱动轴延伸穿过的通孔。

8. 发明申请

US20060042573A1 Combustion-type power tool having cooling arrangement 有权
标题翻译：具有冷却装置的燃烧式电动工具
公开(公告)号：US20060042573A1
公开(公告)日：2006-03-02
申请号：US11208593
申请日：2005-08-23
申请人： Tomomasa Nishikawa , Yoshitaka Akiba , Haruhisa Fujisawa
发明人： Tomomasa Nishikawa , Yoshitaka Akiba , Haruhisa Fujisawa
IPC分类号： F02B71/00
CPC分类号： B25C1/08
摘要： A combustion-type power tool having a cooling arrangement for cooling a cylinder. The tool includes a housing, a cylinder head at one end of the housing, a push lever disposed at another end of the housing, and a combustion chamber frame including a base section and a head section. The head section has a disc like connecting portion extending from an end of the base section and a sleeve like abutment section extending from the connecting portion toward a cylinder head. A fan is disposed in a combustion chamber and is fixed to a rotation shaft of a motor supported to the cylinder head. The fan has fan blades. The fan blades define a widthwise center line in the axial direction of the rotation shaft. The center line is offset from the connecting portion and toward the push lever. The fan blades define widthwise edges in confrontation with the cylinder head. The widthwise edge is positioned in alignment with the connecting portion or offset therefrom toward the cylinder head.
摘要翻译：一种具有用于冷却气缸的冷却装置的燃烧式动力工具。该工具包括壳体，壳体的一端处的气缸盖，设置在壳体的另一端的推杆，以及包括基部和头部的燃烧室框架。头部具有从基部的端部延伸的盘状连接部分和从连接部分朝向气缸盖延伸的套筒状邻接部分。风扇设置在燃烧室中并且固定到支撑在气缸盖上的电动机的旋转轴。风扇有风扇叶片。风扇叶片在旋转轴的轴向方向上限定宽度方向的中心线。中心线偏离连接部分并朝向推杆。风扇叶片限定了与气缸盖对置的宽度方向的边缘。宽度方向边缘与连接部分对准或者朝向气缸盖偏移。

9. 发明申请

US20060042572A1 Combustion-type power tool having gas canister cooling arrangement 有权
公开(公告)号：US20060042572A1
公开(公告)日：2006-03-02
申请号：US11208586
申请日：2005-08-23
申请人： Tomomasa Nishikawa , Yoshitaka Akiba , Shoichi Hirai , Haruhisa Fujisawa
发明人： Tomomasa Nishikawa , Yoshitaka Akiba , Shoichi Hirai , Haruhisa Fujisawa
IPC分类号： F02B71/00
CPC分类号： B25C1/08
摘要： A combustion-type power tool having a cooling arrangement for cooling a gas canister. The tool includes a housing having a gas canister accommodating section in which a gas canister is accommodated. An air passage is defined between the gas canister accommodating section and the gas canister accommodated therein. The gas canister accommodating section is formed with an air inlet port in communication with the air passage for introducing air into the air passage. Since air flows along the gas canister, the gas canister can be cooled. If the tool is provided with a fan, the rotation of the fan causes air suction passing through the air passage.

10. 发明授权

US07316209B2 Combustion type power tool having buffer piece 有权
标题翻译：具有缓冲片的燃烧式电动工具
公开(公告)号：US07316209B2
公开(公告)日：2008-01-08
申请号：US11802956
申请日：2007-05-29
申请人： Yoshitaka Akiba , Haruhisa Fujisawa , Tomomasa Nishikawa
发明人： Yoshitaka Akiba , Haruhisa Fujisawa , Tomomasa Nishikawa
IPC分类号： F02B71/00
CPC分类号： B25C1/123
摘要： A combustion-type power tool includes a housing, a cylinder disposed, a piston, and a cylinder head disposed at an end of the housing and having a wall portion extending in a direction perpendicular to an axial direction, the wall portion having an opening. A motor is disposed at the cylinder head and includes a motor body and a drive shaft extending from the motor body into a combustion chamber through the opening of the wall portion of the cylinder head, a fan is connected to the drive shaft to be rotatable within the combustion chamber, and an elastic member is disposed at the opening of the wall portion and has a sleeve portion extending in the axial direction. The sleeve portion has a through-hole through which the drive shaft extends, and an inner surface of the through-hole is tapered with respect to an outer surface of the drive shaft.
摘要翻译：一种燃烧式电动工具包括壳体，设置的气缸，活塞和设置在壳体的端部并具有沿与轴向垂直的方向延伸的壁部的气缸盖，壁部具有开口。电动机设置在气缸盖上，包括电动机主体和驱动轴，该电动机主体和驱动轴通过气缸盖的壁部分的开口从电动机主体延伸到燃烧室，风扇连接到驱动轴上以在内部可转动燃烧室和弹性构件设置在壁部的开口处并且具有沿轴向延伸的套筒部。套筒部分具有通孔，驱动轴穿过该通孔，并且通孔的内表面相对于驱动轴的外表面是锥形的。

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