Abstract: A display device may include: a first light emitting part that emits light; a second light emitting part that emits light; and a housing. The housing may include: a transmissive part defining an internal space in which the first and second light emitting parts are disposed, and that transmits light from the space of the housing to outside the housing; a partition wall part integrally formed with the transmissive part and partitioning the space of the housing into a first accommodating space where the first light emitting part is disposed and a second accommodating space where the second light emitting part is disposed; and a first shielding part disposed on a surface of the transmissive part, having a light transmittance smaller than a light transmittance of the transmissive part, and defining a first display element in the first accommodating space and a second display element in the second accommodating space.

Abstract: A light unit is less likely to have lower light emission performance upon receiving a shock. An electric work machine includes a motor, a housing including a motor compartment accommodating the motor and a grip protruding downward from the motor compartment, an output unit located frontward from the motor and operable with a rotational force from the motor, a substrate extending above, on a left, and on a right of the output unit, and a plurality of light emitters mounted on a front surface of the substrate at intervals in a circumferential direction of the output unit. A light emitter of the plurality of light emitters nearest an apex of the substrate immediately above the output unit is at a position shifted circumferentially by a predetermined angle from the apex.

Abstract: A power tool includes a motor, an output shaft, a chip-on-board light emitting diode, and a light cover. The output shaft is rotated by a rotational force of the motor. The chip-on-board light emitting diode is disposed around the output shaft. The chip-on-board light emitting diode includes: a substrate having a circular ring portion; and an LED chip disposed on a front surface of the circular ring portion. The light cover is fixed to the substrate. The light cover includes: an inner cylindrical portion disposed radially inside with respect to the circular ring portion; and a light transmission portion through which light emitted from the LED chip passes. The inner cylindrical portion includes a cover slope that totally reflects light from the LED chip forward.

Abstract: An indication light emitter has higher viewability. A screwing tool includes a motor, a tool holder rotatable with a rotational force generated by the motor, a cylindrical lens between the motor and the tool holder, and a light-emitting element located radially outward from the cylindrical lens to illuminate the cylindrical lens.

Abstract: A power tool includes a motor, an output shaft, a chip-on-board light emitting diode, and a light cover. The output shaft is rotated by a rotational force of the motor. The chip-on-board light emitting diode is disposed around the output shaft. The chip-on-board light emitting diode includes: a substrate including a circular ring portion; and an LED chip disposed on a front surface of the circular ring portion. The light cover is fixed to the substrate. The light cover includes: an outer cylindrical portion disposed radially outside with respect to the circular ring portion; and a light transmission portion through which light emitted from the LED chip passes. An opening is provided in a lower portion of the outer cylindrical portion.

Abstract: A power tool attachment efficiently guides light and provides sufficient illumination when attached to a power tool. A power tool attachment is attachable to a power tool to cover a light source included in the power tool. The power tool attachment includes a light guide being a single member made of a transparent resin. The light guide includes a light receiver that receives light from the light source when the power tool attachment is attached to the power tool, and a light emitter that outputs the received light.

Abstract: An impact tool includes a light emitter unit that is isolated from vibrations. An impact tool includes a motor, a hammer rotatable by the motor, an anvil strikable by the hammer in a rotation direction, a hammer case accommodating the hammer, a light emitter unit including a light emitter that illuminates an area adjacent to a front end of the anvil, and a radial elastic member supported by the hammer case and supporting the light emitter unit from radially inside.

Abstract: A power tool (1; 101) includes: a motor (6; 106) having a stator (61) and a rotor (63), which is rotatable relative to the stator; an output part (8; 108) disposed more forward than the motor and configured to be rotated by the motor; a motor-housing part (21; 121), which houses the motor; a grip part (22; 122) disposed downward of the motor-housing part; a battery-holding part (23; 123) disposed downward of the grip part; and a COB light (50) disposed on the battery-holding part.

Abstract: A power tool includes: a motor; an output shaft that is rotated by a rotational force of the motor; a chip-on-board light emitting diode disposed around the output shaft; and a suppression device configured to suppress a temperature of the chip-on-board light emitting diode to a predetermined allowable value or less.

Abstract: A power tool (1; 101) includes: a motor (6; 106) having a stator (61) and a rotor (63), which is rotatable relative to the stator; an output part (8; 108) disposed more forward than the motor and configured to be rotated by the motor; a motor-housing part (21; 121), which houses the motor; a grip part (22; 122) disposed downward of the motor-housing part; a battery-holding part (23; 123) disposed downward of the grip part; and a COB light (50) disposed on the battery-holding part.

Abstract: A power tool includes a motor, an output shaft, a chip-on-board light emitting diode, and a light cover. The output shaft is rotated by a rotational force of the motor. The chip-on-board light emitting diode is disposed around the output shaft. The chip-on-board light emitting diode includes: a substrate having a circular ring portion; and an LED chip disposed on a front surface of the circular ring portion. The light cover is fixed to the substrate. The light cover includes: an inner cylindrical portion disposed radially inside with respect to the circular ring portion; and a light transmission portion through which light emitted from the LED chip passes. The inner cylindrical portion includes a cover slope that totally reflects light from the LED chip forward.

Abstract: Decreased visibility of a workpiece for an operator is reduced. An impact tool includes a motor, a striker rotatable by the motor, an anvil strikable by the striker in a rotation direction, a hammer case accommodating the striker and having a groove, and a light received in the groove. The light illuminates an area adjacent to a front end of the anvil.

Abstract: A power tool having a hammer mechanism, including: a connecting part connectable with a dust collector, and with a connection flow path to suck in the air from the dust collector to generate a suction power in the dust collector; a motor with a rotating shaft; a first fan to rotate with the rotating shaft and generate a first air flow to cool down the motor; a second fan to rotate with the first fan and generate a second air flow to generate the suction power; a housing with a first exhaust port to discharge the first air flow and a second exhaust port to discharge the second air flow; a first exhaust flow path to guide the first air flow to the first exhaust port; and a second exhaust flow path separated from the first exhaust flow path to guide the second air flow to the second exhaust port.

Abstract: A reciprocating tool includes a body housing, a handle member and an elastic member. A first one of the body housing and the handle member includes a first coupling part, while a second one includes a second coupling part. The first coupling part includes an internal space, and an opening that communicates with the internal space and an outside space of the first coupling part. At least a portion of the second coupling part protrudes into the internal space through the opening and is movable relative to the first coupling part in the front-rear direction within the opening. The elastic member is disposed in the internal space and is configured to bias the first coupling part and the second coupling part such that the body housing and the handle member are biased away from each other in the front-rear direction.

Abstract: A power tool attachment efficiently guides light and provides sufficient illumination when attached to a power tool. A power tool attachment is attachable to a power tool to cover a light source included in the power tool. The power tool attachment includes a light guide being a single member made of a transparent resin. The light guide includes a light receiver that receives light from the light source when the power tool attachment is attached to the power tool, and a light emitter that outputs the received light.

Abstract: A reciprocating tool includes a motor, a motion converting mechanism, a body housing, an inner housing, a support body, and a counterweight. The motion converting mechanism is operably coupled to a motor shaft and is configured to convert rotation into a linear reciprocating motion along a driving axis. The inner housing is within the body housing and houses at least a portion of the motion converting mechanism. The support body is originally separate from the inner housing and is attached to the inner housing in the body housing. The counterweight is operably coupled to the motion converting mechanism and is configured to be driven by the motion converting mechanism. The counterweight is supported by the support body to be pivotable around a pivot axis that extends in a direction orthogonal to the driving axis. At least a portion of the counterweight is housed in the inner housing.

Abstract: A light unit is less likely to have lower light emission performance upon receiving a shock. An electric work machine includes a motor, a housing including a motor compartment accommodating the motor and a grip protruding downward from the motor compartment, an output unit located frontward from the motor and operable with a rotational force from the motor, a substrate extending above, on a left, and on a right of the output unit, and a plurality of light emitters mounted on a front surface of the substrate at intervals in a circumferential direction of the output unit. A light emitter of the plurality of light emitters nearest an apex of the substrate immediately above the output unit is at a position shifted circumferentially by a predetermined angle from the apex.

Abstract: A power tool includes: a motor; an output shaft that is rotated by a rotational force of the motor; a chip-on-board light emitting diode disposed around the output shaft; and a suppression device configured to suppress a temperature of the chip-on-board light emitting diode to a predetermined allowable value or less.

Abstract: An intended illumination area is illuminated with light. An electric work machine includes a motor including a rotor rotatable about a rotation axis extending in a front-rear direction, an output unit located frontward from the motor and operable under a rotational force from the rotor, a light emitter, and an optical member including at least one light receiver that receives light from the light emitter and a light guide surrounding at least a part of the output unit to allow light from the at least one light receiver to travel through the light guide. The light guide has a rear surface having at least one slit, and a front surface to allow emission of light traveling through the light guide and reflected at the at least one slit.

Abstract: A power tool includes a motor, an output shaft, a chip-on-board light emitting diode, and a light cover. The output shaft is rotated by a rotational force of the motor. The chip-on-board light emitting diode is disposed around the output shaft. The chip-on-board light emitting diode includes: a substrate having a circular ring portion; and an LED chip disposed on a front surface of the circular ring portion. The light cover is fixed to the substrate. The light cover includes: an inner cylindrical portion disposed radially inside with respect to the circular ring portion; and a light transmission portion through which light emitted from the LED chip passes. The inner cylindrical portion includes a cover slope that totally reflects light from the LED chip forward.