摘要:
A pneumatic tool includes a trigger configured to perform a first operation of operating a drive part, a contact member configured to perform a second operation of operating the drive part, a timer configured to measure the time during which the drive part can be operated by the second operation of the contact member and to switch the operation mode of the drive part after the time has elapsed, and a timer switch configured to control the operation of the timer. The first operation of the trigger is transmitted to the timer switch using a transmitting member.
摘要:
The present gas internal combustion type nailing machine is provided with: a striking cylinder (5) for slidably accommodating a striking piston (6) therein; a combustion chamber (11) formed in an upper side and capable of being opened and closed; a compressor (25) for supercharging compressed air into the combustion chamber; a fuel supply device (19) for supplying a fuel gas into the combustion chamber; and a safety device for preventing the nailing machine from being driven for ignition when the supercharge pressure of the compressed air exceeds a set pressure value; and a switch (S) configured to be turned ON by operating a trigger (40) and to ignite the mixed gas within the combustion chamber, wherein the safety device comprises a cylinder mecahnism (47) configured to operate to prevent the switch from turning ON based on a pressure in the combustion chamber which exceeds the set pressure value.
摘要:
An automatic stop device for a screwdriver stops the rotation of the air motor of the screwdriver if the desired screwing depht is reached. A screw feed device (15) of the screwdriver comprises a pneumatic cylinder (3). In an air passage (41) formed in the pneumatic cylinder, a valve chamber (47) is formed in order to operate an air exhaust valve (35) to communicate the pilot air chamber (23a) with the open air. An air exhaust hole (46) for exhausting compressed air from the air passage (41) is formed in the valve chamber (47). A timer chamber (50) is formed in the upstream of the valve chamber (47) in the air passage (41). A pressure within the valve chamber (47) increases and the air exhaust valve (35) operates upon the pressure increase and the stop valve (22) is actuated to close by discharging the compressed air from the pilot air chamber (23a) of the stop valve (22), when the piston reaches a position near the lower dead point and the compressed air flows from the air passage (41) to the valve chamber (47) via the timer chamber (50) and the air exhaust hole (46) is closed in synchronism with the operation of the contact arm (18).
摘要:
A hand tool (10) includes a trigger (30) manually operated by an operator, a tool body (11) configured to movably support the trigger (30), a biasing member (40) configured to generate a biasing force for biasing the trigger (30) in a direction opposite to a operation direction of the trigger (30), and a contacting member (41) operated by a biasing force of the biasing member (40) to act on the trigger (30) or tool body (11). The biasing member (40) and the contacting member (41) are assembled integrally with the tool body (11) or the trigger (30).
摘要:
A driving tool (10) including a driver (33) configured to drive out a fastener, a piston (32) to which the driver is connected, a cylinder (31) in which the piston is disposed so as to be reciprocated, a head valve (34) which is slidably mounted to an outer circumferential side of the cylinder and controls a flow of compressed air into the cylinder, and a seal portion (35a) which is provided to face an opening edge of the head valve. The seal portion includes a lip portion (35b) protruding along an outer circumferential surface of the head valve.
摘要:
An operating mechanism is provided with an operating member (102A) which is pivotally supported by a first axis (121A), and a link member (103A) which is pivotally supported by a second axis (132A) and configured to transmit an operation of the operating member (102A) to a driving force transmitting member (111). A necessary load for an operation of the operating member (102A) is relieved at a ratio of distances between power working points and effort points, and support points in the operating member (102A) and the link member (103A).
摘要:
An automatic stop device for a screwdriver stops the rotation of the air motor of the screwdriver if the desired screwing depht is reached. A screw feed device (15) of the screwdriver comprises a pneumatic cylinder (3). In an air passage (41) formed in the pneumatic cylinder, a valve chamber (47) is formed in order to operate an air exhaust valve (35) to communicate the pilot air chamber (23a) with the open air. An air exhaust hole (46) for exhausting compressed air from the air passage (41) is formed in the valve chamber (47). A timer chamber (50) is formed in the upstream of the valve chamber (47) in the air passage (41). A pressure within the valve chamber (47) increases and the air exhaust valve (35) operates upon the pressure increase and the stop valve (22) is actuated to close by discharging the compressed air from the pilot air chamber (23a) of the stop valve (22), when the piston reaches a position near the lower dead point and the compressed air flows from the air passage (41) to the valve chamber (47) via the timer chamber (50) and the air exhaust hole (46) is closed in synchronism with the operation of the contact arm (18).
摘要:
A pneumatic screw punching machine includes a poppet portion (44) on a piston (28) of an air cylinder (23) and a piston catcher (43) disposed inside a head cap (24). The piston is held when the poppet portion fits into the piston catcher in a standby state. A retaining ring (40) in the head cap supports a head valve (39). A circumferential groove (41) is formed in an inner peripheral surface of the front part of the head cap and a ring-like seal (42) is fitted into the groove. When a driver bit (29) is to be changed, fitting bolts are removed and a housing (22) and the head cap are separated from each other. Then, the head cap, the head valve, the seal, the piston and the driver bit can all be removed together from the housing.
摘要:
An operating mechanism is provided with an operating member (102A) which is pivotally supported by a first axis (121A), and a link member (103A) which is pivotally supported by a second axis (132A) and configured to transmit an operation of the operating member (102A) to a driving force transmitting member (111). A necessary load for an operation of the operating member (102A) is relieved at a ratio of distances between power working points and effort points, and support points in the operating member (102A) and the link member (103A).