Abstract: An electrical apparatus may be provided with: a housing; a first electrical apparatus-side terminal; a first terminal cover configured to move between a covering position and an exposing position; and a first locking member configured to engage with the first terminal cover positioned at the covering position, and configured to move between a lock position at which the first locking member restricts movement of the first terminal cover from the covering position to the exposing position and an unlock position. The first locking member may be configured to move from the lock position to the unlock position while a first target apparatus is slid in the sliding direction to be attached to the housing. When the first locking member is positioned at the lock position, a user may be unable to directly shift the first locking member from the lock position to the unlock position.

Abstract: Provided is a vehicle undercover having well-balanced rigidity. A vehicle undercover 10 is provided with: a plate-shaped body 12 made of a porous material such as a fiber body or a foam; and a support body 14 supporting the plate-shaped body 12. The support body 14 has a groove-shaped first frame part 20 having a horizontal plate 20a and vertical plates 20b and 20b extending from both edges of the horizontal plate 20a. Further, the support body 14 has a second frame part 22 provided across the first frame part 20 and having a smaller dimension of protrusion toward the inside of a vehicle than the first frame part 20.

Abstract: A power cutter disclosed herein may include: a disk blade; a body configured to rotatably support the disk blade about a rotation axis and comprising an electric motor for rotationally driving the disk blade; a plurality of battery packs detachably attached to the body and configured to supply electric power to the electric motor; a grip disposed on the body and configured to be gripped by a user; and a main switch disposed on the grip and configured to electrically connect the plurality of battery packs to the electric motor when the user activates the main switch; wherein a central axis of the grip extends along a reference plane which is perpendicular to the rotation axis of the disk blade, and a distance from the reference plane to the disk blade is less than or equal to 1.5 times a width of the grip.

Abstract: An electric working machine may include an output shaft, a rotary blade attached to the output shaft, an output pulley fixed to the output shaft, an input shaft, an input pulley fixed to the input shaft, a transmission belt wrapped around the input pulley and the output pulley, an electric motor including a motor shaft and configured to rotate the motor shaft, a speed reducer configured to reduce a speed of rotation of the motor shaft and transmit the rotation to the input shaft, and a housing that houses the electric motor and the speed reducer, and rotatably supports the input shaft and the output shaft. A rotation axis of the motor shaft may be inclined with respect to a direction which is along a rotation axis of the output shaft.

Abstract: An electrical apparatus may be provided with: a housing; a first electrical apparatus-side terminal; a first terminal cover configured to move between a covering position and an exposing position; and a first locking member configured to engage with the first terminal cover positioned at the covering position, and configured to move between a lock position at which the first locking member restricts movement of the first terminal cover from the covering position to the exposing position and an unlock position. The first locking member may be configured to move from the lock position to the unlock position while a first target apparatus is slid in the sliding direction to be attached to the housing. When the first locking member is positioned at the lock position, a user may be unable to directly shift the first locking member from the lock position to the unlock position.

Abstract: A power cutter disclosed herein may include: a disk blade; a body configured to rotatably support the disk blade about a rotation axis and comprising an electric motor for rotationally driving the disk blade; a plurality of battery packs detachably attached to the body and configured to supply electric power to the electric motor; a grip disposed on the body and configured to be gripped by a user; and a main switch disposed on the grip and configured to electrically connect the plurality of battery packs to the electric motor when the user activates the main switch; wherein a central axis of the grip extends along a reference plane which is perpendicular to the rotation axis of the disk blade, and a distance from the reference plane to the disk blade is less than or equal to 1.5 times a width of the grip.

Abstract: An engine includes: a piston; a carburetor having a diaphragm fuel pump, the diaphragm fuel pump including a pump chamber configured to suck and discharge fuel and a diaphragm chamber to which a pressure to drive the pump chamber is applied; and a communicating passage configured to connect between the diaphragm chamber and a negative pressure part in which a negative pressure is created due to movement of the piston. A flowback prevention part is formed in the communicating passage to allow fluid to move only in on direction from the diaphragm chamber to the negative pressure part.

Abstract: An engine includes: a piston; a carburetor having a diaphragm fuel pump, the diaphragm fuel pump including a pump chamber configured to suck and discharge fuel and a diaphragm chamber to which a pressure to drive the pump chamber is applied; and a communicating passage configured to connect between the diaphragm chamber and a negative pressure part in which a negative pressure is created due to movement of the piston. A flowback prevention part is formed in the communicating passage to allow fluid to move only in on direction from the diaphragm chamber to the negative pressure part.

Abstract: An object of the present invention is to provide a portable working machine wherein: a control rod that can be split into two or more sprit rods; the sprit rods are fixedly connected to one another by tightening a fasten member using a lever; the fasten member is combined with the lever; and the lever is located at a position along with the control rod when the fasten member is tightened with the lever.

Abstract: It is an object of the invention to reduce noise caused by run-out of a tool bit in an impact tool. The representative impact tool according to the invention includes a tool holder 137 that houses a tool bit 119 in such a manner that the tool bit can linearly move in its axial direction, and a barrel 108 that is integrally connected to the tool holder 137 The impact tool further includes an elastic element 155 that is disposed between an inner circumferential surface of the tool holder 137 and an outer circumferential surface of the tool bit 119 in an end region of the tool bit 119 on the barrel side and connected in close contact with the tool holder 137 and the tool bit 119 over a predetermined length of the tool bit 119 in the axial direction. The elastic element 155 applies a biasing force to prevent a run-out of the tool bit 119 in a direction transverse to the axial direction. Further, an intermediate element 145 comes in point contact with the tool bit 119 on its axial center line.

Abstract: A carrier for carrying a power tool may include a tool bit holder supporting at least one tool bit and a tool bit restraint device that is capable of preventing the at least one tool bit from being dropped out of the tool bit holder. The tool bit restraint device includes a tool bit restraint member. The tool bit restraint member is arranged and constructed so as to substantially uniformly press the at least one tool bit, thereby restraining the at least one tool bit.

Abstract: It is an object of the invention to reduce noise caused by run-out of a tool bit in an impact tool. The representative impact tool according to the invention includes a tool holder 137 that houses a tool bit 119 in such a manner that the tool bit can linearly move in its axial direction, and a barrel 108 that is integrally connected to the tool holder 137 The impact tool further includes an elastic element 155 that is disposed between an inner circumferential surface of the tool holder 137 and an outer circumferential surface of the tool bit 119 in an end region of the tool bit 119 on the barrel side and connected in close contact with the tool holder 137 and the tool bit 119 over a predetermined length of the tool bit 119 in the axial direction. The elastic element 155 applies a biasing force to prevent a run-out of the tool bit 119 in a direction transverse to the axial direction. Further, an intermediate element 145 comes in point contact with the tool bit 119 on its axial center line.

Abstract: It is an object of the invention to provide a technique that contributes to further improvement of an impact tool. A representative impact tool includes a motor, a tool body that houses the motor, a dynamic vibration reducer and a driving mechanism part that is driven by the motor and forcibly drives the dynamic vibration reducer by applying an external force other than vibration of the tool body to the dynamic vibration reducer, during hammering operation. At least one of the dynamic vibration reducer and the driving mechanism part is mounted to the tool body in a form of an assembly into which at least one of a plurality of component parts forming the dynamic vibration reducer and a plurality of component parts forming the driving mechanism part are assembled in advance.

Abstract: It is an object of the invention to reduce noise caused by run-out of a tool bit in an impact tool. The representative impact tool according to the invention includes a tool holder 137 that houses a tool bit 119 in such a manner that the tool bit can linearly move in its axial direction, and a barrel 108 that is integrally connected to the tool holder 137 The impact tool further includes an elastic element 155 that is disposed between an inner circumferential surface of the tool holder 137 and an outer circumferential surface of the tool bit 119 in an end region of the tool bit 119 on the barrel side and connected in close contact with the tool holder 137 and the tool bit 119 over a predetermined length of the tool bit 119 in the axial direction. The elastic element 155 applies a biasing force to prevent a run-out of the tool bit 119 in a direction transverse to the axial direction. Further, an intermediate element 145 comes in point contact with the tool bit 119 on its axial center line.

Abstract: A carrier for carrying a power tool may include a tool bit holder supporting at least one tool bit and a tool bit restraint device that is capable of preventing the at least one tool bit from being dropped out of the tool bit holder. The tool bit restraint device includes a tool bit restraint member. The tool bit restraint member is arranged and constructed so as to substantially uniformly press the at least one tool bit, thereby restraining the at least one tool bit.

Abstract: It is an object of the invention to provide a technique that contributes to further improvement of an impact tool. A representative impact tool includes a motor, a tool body that houses the motor, a dynamic vibration reducer and a driving mechanism part that is driven by the motor and forcibly drives the dynamic vibration reducer by applying an external force other than vibration of the tool body to the dynamic vibration reducer, during hammering operation. At least one of the dynamic vibration reducer and the driving mechanism part is mounted to the tool body in a form of an assembly into which at least one of a plurality of component parts forming the dynamic vibration reducer and a plurality of component parts forming the driving mechanism part are assembled in advance.

Abstract: An information processing device for acquiring usage data of an application on the information processing device loads a monitoring library when an application is launched. The monitoring library intercepts event information arising from the application at some midpoint between the application and an operating system, or between the application and a library, selects some events among the event information, and interprets the selected events on the basis of a predetermined process. Then, the monitoring library sends the event information to a monitoring process. The monitoring process creates usage data on the basis of the event information and stores the usage data in a file.