Abstract: A grinder (100) includes a motor (12), a housing (4, 6, 30), a spindle (24), a first cover (120), and a second cover (170). The spindle protrudes downward from the housing, is driven by the motor, and thereby rotates. The first cover is provided in the circumferential direction of the spindle, is fixed to the housing, and at least partially covers a tool accessory (40), which is mounted on the spindle, from above. The second cover is detachably mounted on the housing (6) independently of the first cover.

Abstract: A surrounding environment recognition device includes an image capturing unit that captures a peripheral image, and a traffic signal recognizing unit that recognizes a traffic signal from within the peripheral image. The image capturing unit captures a plurality of images of frames. The traffic signal recognizing unit recognizes the traffic signal based on a combination of the plurality of images of frames.

Abstract: A surrounding environment recognition device includes an image capturing unit that captures a peripheral image, and a traffic signal detecting unit, which sets a search region with respect to the peripheral image, and detects a traffic signal inside of the search region. The search region becomes smaller as the distance from the image capturing unit is farther away.

Abstract: An ink set includes a recording ink and a displacement ink. The recording ink contains a pigment, a resin, water, and a first surfactant and is substantially free of alkyl polyols with a normal boiling point of 280° C. or more. The displacement ink contains water, a second surfactant, an aprotic polar solvent, and an alkyl polyol with a normal boiling point of 280° C. or more. Each of the first surfactant and the second surfactant includes a silicone surfactant and/or a fluorosurfactant. The resin includes a water-soluble resin and/or a resin emulsion. The recording ink has a higher surface tension than that of the displacement ink.

Abstract: An ink composition includes a color material, water, and polymer particles, in which the polymer particle has a core-shell structure having a core polymer and a shell polymer, a glass transition temperature of the core polymer is 30° C. or higher, a glass transition temperature of the shell polymer is 50° C. or higher, the glass transition temperature of the shell polymer is more than 10° C. higher than the glass transition temperature of the core polymer, and the core polymer includes an aromatic monomer as a constituent unit and does not substantially include an alkyl polyol having a standard boiling point of 280° C. or higher.

Abstract: An ink composition includes a white coloring material, polymer particles, and a solvent, the polymer particles satisfying the relationship represented by the following expression (1). Y?0.33X+20??(1) where X is an average particle size D50 (nm) and Y is a melting start temperature (° C.).

Abstract: Disclosed herein is an ink composition, including: a color material; water; and a polymer particle, in which the polymer particle has a core-shell structure including a core polymer and a shell polymer, in which the polymer particle has an average particle diameter of 10 nm to 80 nm, in which the core polymer has a glass transition temperature of lower than 60° C. and the shell polymer has a glass transition temperature of higher than or equal to 60° C., and in which the core polymer includes an aromatic monomer having at least a vinyl group as a constitutional unit.

Abstract: An ink jet recording apparatus includes an ink composition including a pigment and a resin and not substantially including an alkyl polyol with a standard boiling point of 280° or higher; a recording head including a plurality of nozzles that discharge the ink composition, and a nozzle forming surface having the discharge ports of the plurality of nozzles; an absorption member that absorbs the ink attached to the discharge ports of the nozzles and the nozzle formation surface; and a driving mechanism that performs a cleaning operation by relatively moving at least one of the absorption member and the recording head, and removing the ink composition attached to the nozzle forming surface with the absorption member, where the resin is a core-shell resin provided with a core polymer and a shell polymer, and a glass-transition temperature of the shell polymer is higher than a glass-transition temperature of the core polymer.

Abstract: The ink set includes a deep black ink containing a carbon black, and a pale black ink containing the carbon black with a lower content than the deep black ink. The deep black ink further contains a first colorant and a second colorant, and the pale black ink further contains the first colorant, but does substantially not contain the second colorant. The first and the second colorant are each selected from the group consisting of cyan colorants, magenta colorants, violet colorants, and green colorants.

Abstract: An electric tool, such as an angle driver, has a main tool body with a front portion and a rear portion positioned opposite to the front portion. The main tool body houses a motor configured to receive electricity to function as a drive source. A gear head is coupled with the front portion of the main tool body wherein the gear head has a spindle in communication with a motor axis of the motor via mesh-engagement of bevel gears associated with the motor axis. The spindle has with a cutter tool accessory attached thereto such that rotation of the motor axis produces a commensurate rotation of the cutter tool accessory. Battery attachment portions are associated with the rear portion of the main tool body and are configured to receive a corresponding set of batteries that provide electricity to power the motor.

Abstract: An oscillating rotary electric power tool, in which a spindle with a distal end tool attached thereto is projected downward from a front end portion of a housing accommodating a motor, and the housing also accommodates a coupling member rotatable integrally with an output shaft of the motor, a crankshaft fitted with the coupling member in a depression and projection fitting structure, and a link member to which the spindle is fixed and power is transmitted from the crankshaft to rotate clockwise and counterclockwise in an oscillating manner so that the link member will be driven by the motor to rotate the spindle clockwise and counterclockwise in the oscillating manner, wherein an elastic body is interposed between the coupling member and the crankshaft in the same axial direction as the output shaft.

Abstract: An ink jet recording apparatus includes an ink composition including a pigment and a resin and not substantially including an alkyl polyol with a standard boiling point of 280° or higher; a recording head including a plurality of nozzles that discharge the ink composition, and a nozzle forming surface having the discharge ports of the plurality of nozzles; an absorption member that absorbs the ink attached to the discharge ports of the nozzles and the nozzle formation surface; and a driving mechanism that performs a cleaning operation by relatively moving at least one of the absorption member and the recording head, and removing the ink composition attached to the nozzle forming surface with the absorption member, where the resin is a core-shell resin provided with a core polymer and a shell polymer, and a glass-transition temperature of the shell polymer is higher than a glass-transition temperature of the core polymer.

Abstract: A rechargeable grinder includes a brushless motor, a main body housing configured to accommodate the brushless motor, a main switch and a micro switch configured to distribute power to the brushless motor, and a switch lever capable of moving with respect to the main switch and the micro switch, wherein a lock off lever capable of operating the micro switch in association with movement of the switch lever toward a switch is provided so as to be movable between a lock release position in which the micro switch can be operated and a lock position in which the micro switch cannot be operated.

Abstract: Disclosed herein is an ink composition, including: a color material; water; and a polymer particle, in which the polymer particle has a core-shell structure including a core polymer and a shell polymer, in which the polymer particle has an average particle diameter of 10 nm to 80 nm, in which the core polymer has a glass transition temperature of lower than 60° C. and the shell polymer has a glass transition temperature of higher than or equal to 60° C., and in which the core polymer includes an aromatic monomer having at least a vinyl group as a constitutional unit.

Abstract: A dust collecting attachment that is mounted on a sander includes a suction portion mounted on a portion of a front housing where an output shaft projects, a flexible hose having a front end of the flexible hose connected to the suction portion, a discharge portion connected to a rear end of the flexible hose and a changeable member placed on both a motor housing and the discharge portion. The changeable member allows the discharge portion to be mounted at any position around an axis of the motor housing.

Abstract: A reciprocating tool includes a toggle switch that is turned on or off by tilting a lever, and a switch lever in a motor housing. The switch lever includes an engagement frame into which the lever is inserted, and can slide in a tilting direction. The switch lever is slid to tilt the lever to an ON position or an OFF position through a sliding operation of the switch lever from the outside. An engagement portion of the switch lever on a side closer to the ON position of the lever is provided with a slanted guide surface that guides the lever in the ON position to the OFF position when the toggle switch is attached into an upper housing having the switch lever attached thereto.

Abstract: There is provided a clear ink composition containing a water-insoluble alkanediol having at least seven carbon atoms, a water-soluble alcohol that functions as a dissolution aid for dissolving the water-insoluble alkanediol, water, a fine polymer particle at least containing polyolefin, and a fluorene resin. A colorant is not used.

Abstract: An ink set includes a recording ink and a displacement ink. The recording ink contains a pigment, a resin, water, and a first surfactant and is substantially free of alkyl polyols with a normal boiling point of 280° C. or more. The displacement ink contains water, a second surfactant, an aprotic polar solvent, and an alkyl polyol with a normal boiling point of 280° C. or more. Each of the first surfactant and the second surfactant includes a silicone surfactant and/or a fluorosurfactant. The resin includes a water-soluble resin and/or a resin emulsion. The recording ink has a higher surface tension than that of the displacement ink.