Abstract: A machine tool includes a spindle capable of holding a workpiece and rotatable on a spindle axis and a tool post on which a tool is attachable to machine the workpiece held by the spindle. The tool post includes a first turnable holder turnable on a first turning axis perpendicular to the spindle axis. The first turnable holder has a first tool unit mounting part where a rotary tool is attachable. The tool post further includes a second turnable holder turnable on a second turning axis perpendicular to the spindle axis and different from the first turning axis. The second turnable holder has a second whirling tool mounting part where a thread whirling tool is attachable.

Abstract: A terminal device includes an interface configured to communicate with an external device, a memory, and a processor. The memory is configured to store computer-readable instructions, a first virtual object, and a second virtual object. The first virtual object is operable based on an instruction input by a player in a real space. The processor is configured to execute the computer readable-instructions so as to: obtain a virtual space image including the first and second virtual objects, the virtual space image being virtually captured by a virtual camera in a virtual space; recognize a positional relationship between the second virtual object and one of the first virtual object and the virtual camera in the virtual space; and change a display form of the second virtual object, when the positional relationship is a predetermined positional relationship.

Abstract: A terminal device includes a memory configured to store computer-readable instructions and a processor configured to perform the computer-readable instructions. The processor is configured to: cause a real space camera in a real space to capture a real space image including a real player; cause a virtual space camera in a virtual space to capture a virtual space image including a virtual object, the real player performing an instruction input to the virtual object; create a composite image that is formed by composing part of the virtual space image stored in the memory and a player image in the real space image stored in the memory; and output the composite image to a display so that the display is configured to display the composite image.

Abstract: A torque detection device in a power transmission device including a speed change mechanism, the torque detection device detecting torque on a rotary shaft that rotates with a gear, the torque detection device including: a first encoder having a first detected portion and directly fixed to the rotary shaft so as to rotate with the rotary shaft; a second encoder having a second detected portion and directly fixed to the gear so that the second encoder rotates with the gear and that the second detected portion is located near the first detected portion; and a rotational displacement detection sensor that detects rotational displacements of the first detected portion and the second detected portion.

Abstract: A terminal device includes an interface configured to communicate with an external device, a memory, and a processor. The memory is configured to store computer-readable instructions, a first virtual object, and a second virtual object. The first virtual object is operable based on an instruction input by a player in a real space. The processor is configured to execute the computer readable-instructions so as to: obtain a virtual space image including the first and second virtual objects, the virtual space image being virtually captured by a virtual camera in a virtual space; recognize a positional relationship between the second virtual object and one of the first virtual object and the virtual camera in the virtual space; and change a display form of the second virtual object, when the positional relationship is a predetermined positional relationship.

Abstract: A terminal device includes a memory configured to store computer-readable instructions and a processor configured to perform the computer-readable instructions. The processor is configured to: cause a real space camera in a real space to capture a real space image including a real player; cause a virtual space camera in a virtual space to capture a virtual space image including a virtual object, the real player performing an instruction input to the virtual object; create a composite image that is formed by composing part of the virtual space image stored in the memory and a player image in the real space image stored in the memory; and output the composite image to a display so that the display is configured to display the composite image.

Abstract: A machine tool capable of facilitating a process of mounting a fluid supplying unit to a spindle supporting unit is provided. The machine tool has a rotating unit including a spindle provided with a workpiece chucking unit, a supporting unit which rotatably supports the spindle around a spindle axis, and a fluid supplying unit removably mounted on a rear end of the supporting unit to allow fluid flow inside the spindle toward the chucking unit. The fluid supplying unit has an insert to be received in the rotating unit in the direction of the spindle axis. A labyrinth clearance is formed between the outer circumferential surface of the insert and the inner circumferential surface of the rotating unit when the fluid supplying unit is mounted on the rear end of the supporting unit. The labyrinth clearance allows rotation of the rotating unit and restricts leakage of the supplied fluid from inside the spindle when the rotating unit is rotated.

Abstract: The invention provides a machine tool capable of facilitating a process of mounting a fluid supplying unit to a spindle supporting unit. The machine tool comprisies a rotating unit including a spindle provided with a workpiece chucking unit, a supporting unit which rotatably supports the spindle around a spindle axis, and a fluid supplying unit removably mounted on the supporting unit to supply fluid to the chucking unit via the spindle. The fluid supplying unit has an insert to be received in the rotating unit in the direction of the spindle axis. A labyrinth clearance is formed between the outer circumferential surface of the insert and the inner circumferential surface of the rotating unit when the fluid supplying unit is mounted on the supporting unit. The labyrinth clearance allows rotation of the rotating unit and restricts leak of fluid from the spindle when the rotating unit is rotated.

Abstract: A game apparatus takes an image of a marker placed in the real space. The game apparatus calculates the position and the orientation of the marker with respect to the game apparatus on the basis of the marker included in the taken image, and sets a marker coordinate system on the marker. In addition, the game apparatus detects the direction of gravity on the basis of acceleration detected by an acceleration sensor included in the game apparatus. Next, the game apparatus calculates the direction of gravity in the marker coordinate system on the basis of the detected direction of gravity, and determines the orientation of the virtual character on the basis of the calculated direction of gravity in the marker coordinate system. Then, the game apparatus displays the virtual character on a display device.

Abstract: A transmission includes a case having an internal space; a first partition wall which is provided in the case and forms a boundary between a first chamber which is arranged in the case and houses a rotating object, and a second chamber which is arranged in the case, is connected to the first chamber, and maintains equal pressure between the first chamber and outside air; a second partition wall which is provided in the case and forms a boundary between the second chamber and a third chamber which is arranged in the case and stores fluid below the second chamber; and a third partition wall which is provided in the case and forms a boundary between the first chamber and the third chamber. A first hole and a second hole are formed in that order from the first chamber side in the second partition wall.

Abstract: A computer-readable storage medium has stored therein an information processing program that causes a computer of an information processing apparatus to operate as: means for sequentially obtaining an image; means for detecting a specific object from the obtained image; means for detecting, on the basis of a first threshold and a pixel value obtained from a first region of the detected specific object, first region information on the first region; calculation means for calculating a second threshold on the basis of the pixel value obtained from the first region when the first region information is detected; means for detecting, on the basis of the second threshold calculated by the calculation means and a pixel value obtained from a second region of the detected specific object that is different from the first region, second region information on the second region; and means for outputting at least the second region information detected.

Abstract: A computer-readable storage medium has stored therein an information processing program for causing a computer of an information processing apparatus to operate as: means for sequentially obtaining an image; specific object detection means for detecting a specific object from the obtained image; means for detecting, on the basis of a pixel value obtained from a central region of the detected specific object, first region information on the central region; means for determining whether or not a result of the detection meets a predetermined condition; means for detecting, on the basis of a pixel value obtained from a surrounding region of the specific object that is present around the central region, second region information on the surrounding region; and means for outputting at least the second region information detected by the second region information detection means when a result of the determination is positive.

Abstract: A computer-readable storage medium has stored therein an information processing program that causes a computer of an information processing apparatus to operate as: means for sequentially obtaining an image; means for detecting a specific object from the obtained image; means for detecting, on the basis of a first threshold and a pixel value obtained from a first region of the detected specific object, first region information on the first region; calculation means for calculating a second threshold on the basis of the pixel value obtained from the first region when the first region information is detected; means for detecting, on the basis of the second threshold calculated by the calculation means and a pixel value obtained from a second region of the detected specific object that is different from the first region, second region information on the second region; and means for outputting at least the second region information detected.

Abstract: A game apparatus takes an image of a marker placed in the real space. The game apparatus calculates the position and the orientation of the marker with respect to the game apparatus on the basis of the marker included in the taken image, and sets a marker coordinate system on the marker. In addition, the game apparatus detects the direction of gravity on the basis of acceleration detected by an acceleration sensor included in the game apparatus. Next, the game apparatus calculates the direction of gravity in the marker coordinate system on the basis of the detected direction of gravity, and determines the orientation of the virtual character on the basis of the calculated direction of gravity in the marker coordinate system. Then, the game apparatus displays the virtual character on a display device.

Abstract: A computer-readable storage medium has stored therein an information processing program for causing a computer of an information processing apparatus to operate as: means for sequentially obtaining an image; specific object detection means for detecting a specific object from the obtained image; means for detecting, on the basis of a pixel value obtained from a central region of the detected specific object, first region information on the central region; means for determining whether or not a result of the detection meets a predetermined condition; means for detecting, on the basis of a pixel value obtained from a surrounding region of the specific object that is present around the central region, second region information on the surrounding region; and means for outputting at least the second region information detected by the second region information detection means when a result of the determination is positive.

Abstract: A mower unit includes a mower deck, a plurality of blades mounted inside the mower deck and rotatable about vertical shafts supported to the mower deck, the mower deck defining, on one lateral side thereof, a discharge outlet for discharging cut grass cut by the plurality of blades, and an opening and closing member configured to be movable to a closing position for closing the discharge outlet and also to an opening position away from the discharge outlet for opening the discharge outlet, the opening and closing member at the opening position being disposed along an outer face of the mower deck.

Abstract: A transmission includes a case having an internal space; a first partition wall which is provided in the case and forms a boundary between a first chamber which is arranged in the case and houses a rotating object, and a second chamber which is arranged in the case, is connected to the first chamber, and maintains equal pressure between the first chamber and outside air; a second partition wall which is provided in the case and forms a boundary between the second chamber and a third chamber which is arranged in the case and stores fluid below the second chamber; and a third partition wall which is provided in the case and forms a boundary between the first chamber and the third chamber. A first hole and a second hole are formed in that order from the first chamber side in the second partition wall.

Abstract: A mower unit includes a mower deck, a plurality of blades mounted inside the mower deck and rotatable about vertical shafts supported to the mower deck, the mower deck defining, on one lateral side thereof, a discharge outlet for discharging cut grass cut by the plurality of blades, and an opening and closing member configured to be movable to a closing position for closing the discharge outlet and also to an opening position away from the discharge outlet for opening the discharge outlet, the opening and closing member at the opening position being disposed along an outer face of the mower deck.

Abstract: A mower includes a mower deck that opens downward; a plurality of vertical shafts rotatably supported by the mower deck; a plurality of cutting blades driven by the vertical shafts inside the mower deck; a cutting chamber formed inside the mower deck and provided for each cutting blade; and an opening formed between the cutting chambers for adjacent cutting blades. The cutting blades are arranged generally in a lateral direction with an adjacent pair of cutting blades being rotatably driven in opposite directions from each other. The opening allows for flow passage of cut grass at least from one of the cutting chambers to the other cutting chamber.

Abstract: A mower unit includes a mower deck, a plurality of blades mounted inside the mower deck and rotatable about vertical shafts supported to the mower deck, the mower deck defining, on one lateral side thereof, a discharge outlet for discharging cut grass cut by the plurality of blades, and an opening and closing member configured to be movable to a closing position for closing the discharge outlet and also to an opening position away from the discharge outlet for opening the discharge outlet, the opening and closing member at the opening position being disposed along an outer face of the mower deck.