초록 ▼

A main switch section is accommodated in a trigger. The trigger provided on the handle through a spring. The handle is formed with a recess to which one end of the spring is seated, so that the trigger is normally urged toward the lower side of the combustion-type nail driver. A switch accommodating

A main switch section is accommodated in a trigger. The trigger provided on the handle through a spring. The handle is formed with a recess to which one end of the spring is seated, so that the trigger is normally urged toward the lower side of the combustion-type nail driver. A switch accommodating portion is provided in the lower side of the canister housing. A push switch is stored in the switch accommodating portion. The push switch is a commodity type micro-switch covered with a switch protection member made from an elastic material such as a rubber.

대표청구항 ▼

What is claimed is: 1. A combustion-type power tool comprising: a housing having one end side and another end side; a handle provided on the housing; a cylinder head disposed at the one end side of the housing; a cylinder disposed in and fixed to the housing, the cylinder defining an axial directio

What is claimed is: 1. A combustion-type power tool comprising: a housing having one end side and another end side; a handle provided on the housing; a cylinder head disposed at the one end side of the housing; a cylinder disposed in and fixed to the housing, the cylinder defining an axial direction, the cylinder having one end positioned at the one end side of the housing and another end positioned at the another end side of the housing; a piston slidably disposed in the cylinder and reciprocally movable in the axial direction; a combustion chamber frame disposed in the housing and movable in the axial direction, the combustion chamber frame being abuttable on the cylinder head to provide a combustion chamber in cooperation with the cylinder head and the piston; an elastic member provided in one of the housing and the handle; and a switch provided in one of the housing and the handle through the elastic member, the switch having one end portion facing to the one end side of the housing, and having another end portion facing to the another end side of the housing; wherein the elastic member comprises a pair of elastic segments, one of the pair of elastic segments covering the one end portion of the switch and an other of the pair of elastic segment covering the another end portion of the switch. 2. The combustion-type power tool according to claim 1, further comprising a nose provided on the another end of the cylinder, the nose extending in a protruding direction away from the cylinder; a push lever disposed at the another end side of the housing and movable along the nose in the axial direction upon pressing against a workpiece; a connecting unit connecting the combustion chamber frame with the push lever; and a motor disposed at the cylinder head. 3. The combustion-type power tool according to claim 2, wherein the switch detects a predetermined position of the combustion chamber frame when the push lever is pressed against a workpiece, the switch providing a command signal indicative of driving the motor. 4. The combustion-type power tool according to claim 1, wherein the elastic member is configured so as to moderate an impact force on the switch during operation of the combustion-type power tool. 5. The combustion-type power tool according to claim 1, wherein the switch controls normal operation of the combustion-type power tool in response to activation of the switch by a user of the combustion-type power tool, the switch and the elastic member being provided in the housing of the combustion-type power tool. 6. A combustion-type power tool comprising: a housing having one end side and another end side; a handle provided on the housing; a cylinder head disposed at the one end side of the housing; a cylinder disposed in and fixed to the housing, the cylinder defining an axial direction, the cylinder having one end positioned at the one end side of the housing and another end positioned at the another end side of the housing; a piston slidably disposed in the cylinder and reciprocally movable in the axial direction; a combustion chamber frame disposed in the housing and movable in the axial direction, the combustion chamber frame being abuttable on the cylinder head to provide a combustion chamber in cooperation with the cylinder head and the piston; a resilient member attached to the handle; a trigger provided on the handle and coupled by the resilient member to the handle; an elastic member provided on the trigger; and a main switch provided on the trigger through the elastic member, the main switch having one end portion facing to the one end side of the housing, the elastic member covering at least the one end portion of the main switch. 7. The combustion-type power tool according to claim 6, further comprising a handle provided on the housing; a nose provided on the another end of the cylinder, the nose extending in a protruding direction away from the cylinder; a push lever disposed at the another end side of the housing and movable along the nose in the axial direction upon pressing against a workpiece; a connecting unit connecting the combustion chamber frame with the push lever; and an ignition plug exposed to the combustion chamber, the ignition plug igniting a mixture of air and the fuel in the combustion chamber; wherein the cylinder head is formed with a fuel injection passage through which the fuel is flowed. 8. The combustion-type power tool according to claim 7, wherein the main switch provides a command signal indicative of generating a spark to the ignition plug for igniting a mixture of air and the fuel. 9. The combustion-type power tool according to claim 6, wherein the resilient member is configured so as to moderate an impact force on the main switch during operation of the combustion-type power tool. 10. The combustion-type power tool according to claim 6, wherein the elastic member is configured so as to moderate an impact force on the main switch during operation of the combustion-type power tool. 11. The combustion-type power tool according to claim 6, wherein the main switch controls normal operation of the combustion-type power tool in response to activation of the main switch by a user of the combustion-type power tool, the main switch and the elastic member being provided in the handle of the combustion-type power tool. 12. The combustion-type power tool according to claim 6, wherein the resilient member includes a spring. 13. The combustion-type power tool comprising: a housing having one end side and another end side; a handle provided on the housing; a cylinder head disposed at the one end side of the housing; a cylinder disposed in and fixed to the housing, the cylinder defining an axial direction, the cylinder having one end positioned at the one end side of the housing and another end positioned at the another end side of the housing; a piston slidably disposed in the cylinder and reciprocally movable in the axial direction; a combustion chamber frame disposed in the housing and movable in the axial direction, the combustion chamber frame being abuttable on the cylinder head to provide a combustion chamber in cooperation with the cylinder head and the piston; a resilient member attached to the handle; a trigger provided on the handle through the resilient member; an elastic member provided on the trigger; and a main switch provided on the trigger through the elastic member, the main switch having one end portion facing to the one end side of the housing, the elastic member covering at least the one end portion of the main switch; wherein the main switch has another end portion facing to the another end side of the housing; and wherein the elastic member comprises a pair of elastic segments, one of the pair of elastic segments covering the one end portion of the main switch and an other of the elastic segment covering the another end portion of the main switch.