Abstract: A power tool has a motor, an output shaft, a spindle, a gear, a gear housing and a bearing. The spindle is configured to be rotated around a drive axis crossing an extending direction of the output shaft. The gear is fitted on the spindle and configured to transmit rotation of the output shaft to the spindle. The gear housing houses the spindle, the gear and the bearing with the lower end part of the spindle protruded downward. The bearing is arranged on the radially outer side of the gear and configured to support the spindle so as to be rotatable around the drive axis.

Abstract: A hand-held tool, such as a disc grinder, is used to perform work at a high work site, a countermeasure is taken to prevent the hand-held tool from falling by using a suspension tool, such as a tether strap. If a coupling part that couples the suspension tool to the hand-held tool is damaged, this fact is notified to a user. Thereby, an original function of the suspension tool can be reliably performed. If a large impact is applied to a coupling member via a suspension tool, the coupling member is displaced to a second position, due to the deformation of a first position retaining member. A conductive portion disengages from contacts to cause a power circuit to be shut off, thereby prohibiting a main body part from being activated.

Abstract: A heating cooker includes a heating chamber, a heating portion, a brushless motor, a body control circuit, a DC power supply circuit, a motor control circuit, and a safety device. The brushless motor drives a rotary drive mechanism included in the heating portion. The body control circuit outputs a drive signal for the brushless motor. The DC power supply circuit supplies DC power to the brushless motor. The motor control circuit controls the driving of the brushless motor in response to the drive signal. The safety device includes a rotation detection element to detect the rotation state of the rotor of the brushless motor and output a rotation detection signal, and a switch for blocking a power supply line connected to the DC power supply circuit. The safety device controls the switch in response to the rotation detection signal and drive signal.

Abstract: A power tool may include: a motor; a power transmission mechanism connected to the motor; a housing that houses the motor and the power transmission mechanism; a tip tool holder connected to the power transmission mechanism and holding a tip tool; and a cover covering at least a part of the tip tool. The cover may include: a fixed cover portion fixed to the housing; a movable cover portion movable with respect to the fixed cover portion; and an operation member mechanically connected to the movable cover portion and configured to move the movable cover portion with respect to the fixed cover portion.

Abstract: An image processing apparatus inputs a plurality of multi-valued data corresponding to a plurality of color materials, and quantizes each of the plurality of multi-valued data and generate a plurality of quantization data each indicating recording or non-recording of a dot on a recording medium by each of the plurality of color materials. A plurality of dot patterns of the plurality of color materials recorded based on the plurality of quantization data generated have peaks at different deviation angles in power spectra in a frequency domain and have blue noise characteristic or a green noise characteristic.

Abstract: An image processing apparatus converts, based on a threshold matrix in which thresholds are arrayed, input image data into a first dot pattern representing dots recorded by a recording head, and obtains a second dot pattern representing dots recorded by each of L number of the nozzle arrays by assigning the dots of the first dot pattern to each of the nozzle arrays so that each nozzle of the recording head is used in a cycle of L. A power spectrum in a frequency domain of the first dot pattern has a blue noise characteristic or a green noise characteristic in which power in a low frequency band is suppressed, and power is suppressed at a frequency corresponding to the cycle of L and at frequencies of multiplications of the frequency.

Abstract: In the technology of the present disclosure, multiple nozzles included in a printing head are stably driven while disparity in the usage frequency of each nozzle is suppressed. The dot counter scans the digital halftone data in the X direction and performs accumulation-counting on the pixel value Ixy (the number of printing dots) of each pixel for each address y with the accumulation counter CntCum(y). The signal value Gxy of the corresponding pixel address (x, y) is obtained from the division pattern memory unit. The nozzle selection unit selects the nozzle to be used for forming a printing dot, based on the counted values of the accumulation counter CntCum and the signal value Gxy of the division pattern. Then, the address n of the nozzle memory corresponding to the selected nozzle to form a printing dot is determined.

Abstract: A grinder includes a brake mechanism, a switch lever, and a slide bar. In the grinder, an interlocking mechanism configured to interlock the brake mechanism with the switch lever includes a link member that is interposed between the switch lever and the slide bar, that moves the slide bar to the forward position at the push-in position of the switch lever, and that moves the slide bar to the retraction position at the initial position of the switch lever.

Abstract: A power tool includes a side handle that can be toollessly positioned and also attached to or detached from a tool body. The power tool includes a tool body having a side surface, a side handle on the side surface of the tool body, and an operable portion operable to attach or detach the side handle to or from the tool body and to position the side handle being attached to the tool body.

Abstract: A quantized value for a pixel of interest in an input image is derived by using a predetermined threshold value matrix. Then, based on a pixel value group in a predetermined reference area including the pixel of interest in the input image and a threshold value group corresponding thereto, directionality of correction is determined. Further, based on the pixel value group and the threshold value group, whether or not the pixel of interest satisfies a predetermined condition for changing the quantized value is determined. Then, based on both the determination results, the quantized value is corrected.

Abstract: A tool includes a prime mover, switch, operation member for the switch, first accessory, second accessory, third intermediate member moved in conjunction with displacement of the operation member, first intermediate member configured to be displaced from a first blocking position of blocking a displacement route of the third intermediate member to a first non-blocking position of not blocking the displacement route by attachment of the first accessory, and second intermediate member configured to be displaced from a second blocking position of blocking the displacement route to a second non-blocking position of not blocking the displacement route by attachment of the second accessory. Only when the first intermediate member is located at the first non-blocking position and the second intermediate member is located at the second non-blocking position, the third intermediate member is permitted to be displaced so that the operation member is permitted to be displaced to the ON position.

Abstract: A tool includes a first accessory, at least two first attachment portions for detachably and selectively attaching the first accessory, and a single first intermediate member provided in common for the at least two first attachment portions. The first intermediate member includes at least one pressed portion configured to, when the first accessory is attached to one first attachment portion arbitrarily selected from the at least two first attachment portions, be directly or indirectly pressed by the first accessory. The first intermediate member is configured to be displaced when the at least one pressed portion is pressed. The tool further includes a single first sensor configured to detect that the first intermediate member is displaced.

Abstract: An electric power tool. The electric power tool may include: a motor; a control device configured to control the motor; a power transmission mechanism connected to the motor; a housing that houses the motor, the control device and the power transmission mechanism; an end tool holder connected to the power transmission mechanism; an accessory configured to be detachably attached to the housing; and a detector configured to detect whether the accessory is attached or not. The detector may include: a link member configured to move with respect to the housing according to the accessory being attached or detached; a magnet fixed in position with respect to one of the link member and the housing; and a magnetic sensor fixed in position with respect to another of the link member and the housing.

Abstract: A power tool includes a side handle that can be toollessly positioned and also attached to or detached from a tool body. The power tool includes a tool body having a side surface, a side handle on the side surface of the tool body, and an operable portion operable to attach or detach the side handle to or from the tool body and to position the side handle being attached to the tool body.

Abstract: In a case where a line drawing, such as a thin line, is included within input image data, the output of a non-ejectable nozzle is compensated for while suppressing deterioration of reproducibility thereof. Based on positional information for specifying an abnormal nozzle in which an ejection failure has occurred among a plurality of nozzles arrayed in a nozzle column, a pixel value of a pixel on a pixel line corresponding to the abnormal nozzle and a pixel value of a pixel on a pixel line corresponding to another nozzle that is located in close proximity to the abnormal nozzle and in which no ejection failure has occurred are exchanged for the input image data. Then, halftone image data is generated by performing halftone processing for the input image data for which pixel value exchange has been performed.

Abstract: An electric tool includes a motor, a first intermediate member configured to be displaced when a first accessory is attached to a first attachment portion, a second intermediate member configured to be displaced when a second accessory is attached to a second attachment portion, and a first interlock member. The first interlock member mechanically moves in conjunction with the respective displacements of the first intermediate member and the second intermediate member. The first interlock member is displaced in the same direction between when the first accessory is attached and when the second accessory is attached, and is cumulatively displaced when the first accessory and the second accessory are attached. The electric tool is configured in such a manner that power supply to the motor is permitted only in a state that the first interlock member is cumulatively displaced.

Abstract: A grinder includes a brake mechanism, a switch lever, and a slide bar. In the grinder, an interlocking mechanism configured to interlock the brake mechanism with the switch lever includes a link member that is interposed between the switch lever and the slide bar, that moves the slide bar to the forward position at the push-in position of the switch lever, and that moves the slide bar to the retraction position at the initial position of the switch lever.

Abstract: The disclosure discloses an electric power tool. The electric power tool may include a motor, a power transmission mechanism connected to the motor, a housing that houses the motor and the power transmission mechanism, an end tool holder to which an end tool is configured to be attached and from which the end tool is configured to be detached, and connected to the power transmission mechanism, and a handle attached to the housing. The electric power tool may be configured to prohibit rotation of the motor when a user is not gripping the handle.

Abstract: An image processing apparatus that generates image data to be output to an image forming apparatus printing an image, and includes: a generation unit configured to generate, based on an input image, first generation amount data indicating a generation amount of each of one or more kinds of ink dot for each pixel and second generation amount data indicating a generation amount of a blank dot for which the ink dot is not formed for each pixel; and a processing unit configured to determine a dot arrangement pattern indicating an arrangement of each of the one or more kinds of ink dot by performing quantization processing using the first generation amount data and the second generation amount data.

Abstract: An image processing apparatus generates image data for an image forming apparatus having a recording head with recording elements in a first direction that forms an image on a recording medium by ejecting ink from the elements toward the medium fed in a second direction perpendicular to the first. The apparatus has an acquiring unit that acquires multi-valued input image data having a uniform tone, a conversion unit that converts the input image data into halftone image data indicating a dot pattern, by using a dither matrix, and a correction processing unit that executes a density unevenness correction process in accordance with properties of each of the elements. The properties of the elements are obtained by reading a chart image formed based on the halftone image data. The dither matrix is a dispersive dither matrix with a size of Sx rows corresponding to the second direction, Sx, a natural number.