Abstract: An image pickup apparatus having extendibility. The image pickup apparatus includes a front case that forms an apparatus appearance, a rear case that forms the apparatus appearance with the front case, and panel members. At least one of the front case and the rear case has arms that extend in a direction approximately parallel to an optical axis of the image pickup apparatus and that are united with at least one of the front case and the rear case. The front case and the rear case are connected through the arms. The panel members are fixed to the front case and the rear case so as to cover openings formed in a state where the front case and the rear case are connected through the arms.

Abstract: An image pickup apparatus having extendibility. The image pickup apparatus includes a front case that forms an apparatus appearance, a rear case that forms the apparatus appearance with the front case, and panel members. At least one of the front case and the rear case has arms that extend in a direction approximately parallel to an optical axis of the image pickup apparatus and that are united with at least one of the front case and the rear case. The front case and the rear case are connected through the arms. The panel members are fixed to the front case and the rear case so as to cover openings formed in a state where the front case and the rear case are connected through the arms.

Abstract: A driving force transmission device includes a clutch housing configured to be connected to a propeller shaft; a shaft including a weakened portion that is a portion in an axial direction of the shaft; a multi-plate clutch disposed between the clutch housing and the shaft; a case member including a housing portion having a cylindrical shape, the housing portion being configured to house at least a part of the clutch housing; and a falling-off preventing member configured to, when the shaft is broken at the weakened portion, allow rotation of the clutch housing while restraining the clutch housing from falling off the housing portion.

Abstract: A differential unit includes: a pinion gear shaft including a shaft portion and a gear portion; a ring gear meshing with the gear portion; a differential case that rotates with the ring gear; a differential gear mechanism accommodated in the differential case; a differential carrier having an accommodating space accommodating the differential case and the ring gear; and a pair of bearings supporting the pinion gear shaft such that the pinion gear shaft is rotatable with respect to the differential carrier. The differential carrier has an inner cylindrical portion, an outer cylindrical portion, and a connecting portion that are provided as a single member. The inner cylindrical portion has the pair of bearings fitted in the inner cylindrical portion. The outer cylindrical portion is provided radially outward of the inner cylindrical portion. The connecting portion connects the inner cylindrical portion and the outer cylindrical portion.

Abstract: A driving force transmission device includes a clutch housing configured to be connected to a propeller shaft; a shaft including a weakened portion that is a portion in an axial direction of the shaft; a multi-plate clutch disposed between the clutch housing and the shaft; a case member including a housing portion having a cylindrical shape, the housing portion being configured to house at least a part of the clutch housing; and a falling-off preventing member configured to, when the shaft is broken at the weakened portion, allow rotation of the clutch housing while restraining the clutch housing from falling off the housing portion.

Abstract: A differential unit includes: a pinion gear shaft including a shaft portion and a gear portion; a ring gear meshing with the gear portion; a differential case that rotates with the ring gear; a differential gear mechanism accommodated in the differential case; a differential carrier having an accommodating space accommodating the differential case and the ring gear; and a pair of bearings supporting the pinion gear shaft such that the pinion gear shaft is rotatable with respect to the differential carrier. The differential carrier has an inner cylindrical portion, an outer cylindrical portion, and a connecting portion that are provided as a single member. The inner cylindrical portion has the pair of bearings fitted in the inner cylindrical portion. The outer cylindrical portion is provided radially outward of the inner cylindrical portion. The connecting portion connects the inner cylindrical portion and the outer cylindrical portion.

Abstract: The dental handpiece of a center-injection type has a bur sleeve (8, 9) having an axial through hole capable of receiving and detachably holding therein a cutting bur having an axial through hole, upper and lower bearings (10, 11) for rotatably supporting the bur sleeve (8, 9), and an injection nozzle (5) capable of being inserted into the axial through hole of the cutting bur from its proximal end for injecting cooling water through the other end. The dental handpiece (1) further has an upper seal means (17) arranged to seal the space between the upper region of the bur sleeve (8, 9) and the upper bearing (10), and a lower seal means (17?9 arranged to seal the space between the lower region of the bur sleeve (8, 9) and the lower bearing (11).

Abstract: A dental handpiece has a head section, a neck section, a grip section connected to the grip section, and a drive unit connected to the grip section. The handpiece also has a detent unit for preventing relative rotation between the neck and grip sections. The detent unit includes a detent pin arranged axially slidably in the grip section, a spring for biasing the pin proximally so that the distal end of the pin is arranged inside the grip section in a rest position, and a catch formed at the proximal end of the neck section for receiving the pin for engagement. When the drive unit is brought into connection to the grip section, the pin is pressed distally to project out of the grip section into engagement in the catch, to thereby prevent relative rotation between the neck section and the grip section.

Abstract: Provided are an adsorptive carbon which can effectively adsorb vivotoxins such as advanced glycation end products (AGEs), and an adsorbent containing the adsorptive carbon as an active ingredient. The adsorptive carbon according to the present invention has a total pore volume of 0.10 to 1.0 mL/g, an average pore diameter of 1.0 to 2.0 nm, and an absorbance of an infrared absorption band at 1650-1800 cm?1 of no less than 0.005.

Abstract: A dental handpiece where the chip air line is selectively switched to the ON-state for using both water and chip air, and to the OFF-state for using only water. The dental handpiece has a switching valve between the circumferential chip air channel and the chip air line in the handpiece body for selectively allowing and preventing communication. Opening the valve switches the communication to the ON-state in which chip air is allowed to pass from the circumferential chip air channel into the chip air line. Closing the valve switches the communication to an OFF-state in which chip air is prevented from passing from the circumferential chip air channel into the chip air line.

Abstract: A dental handpiece capable of withstanding a higher torque load includes a driving source which rotates a first rotating shaft 3 which is supported rotatably in a rear casing 2R, which transmits rotation to a second rotating shaft 9 which is supported rotatably in a front casing 2F. First and second bearings 12,14 are disposed at a predetermined interval in a jacket 8 fixed in the front casing 2F to rotatably support the second rotating shaft 9, and a third bearing 13 is disposed between the first and second bearings 12,14. The third bearing 13 reduces the whirling of the second rotating shaft 9, thereby preventing the wearing and chipping of the teeth of gears caused by a shift of meshing positions between a first gear 5 and a second gear 10 and a shift of meshing positions between a third gear 11 and a fourth gear 73.

Abstract: A dental handpiece where the chip air line is selectively switched to the ON-state for using both water and chip air, and to the OFF-state for using only water. The dental handpiece has a switching valve between the circumferential chip air channel and the chip air line in the handpiece body for selectively allowing and preventing communication. Opening the valve switches the communication to the ON-state in which chip air is allowed to pass from the circumferential chip air channel into the chip air line. Closing the valve switches the communication to an OFF-state in which chip air is prevented from passing from the circumferential chip air channel into the chip air line.

Abstract: A fryer is provided which, during a standby for cooking, can keep the temperature of a cooking oil slightly lower than a cooking temperature and, during cooking, can quickly raise the oil temperature to the cooking temperature. The fryer also has capabilities of easily performing a heat exchange operation on the cooking oil, preventing degradation of the cooking oil, securing a good kitchen environment and enhancing a work efficiency. The fryer comprises a fryer tank having oil and water for cleaning the oil stored in two layers one upon the other; and a heater installed in the oil layer; wherein the water in the water layer is drawn out from a water suction opening at a bottom of fryer tank, cleaned by a filtering water tank and then delivered into the fryer tank almost horizontally in an off-centered direction from a water supply opening formed in a lower, side wall of the fryer tank, thus rotating the water in the fryer tank in a swirl.

Abstract: Provided are an adsorptive carbon which can effectively adsorb vivotoxins such as advanced glycation end products (AGEs), and an adsorbent containing the adsorptive carbon as an active ingredient. The adsorptive carbon according to the present invention has a total pore volume of 0.10 to 1.0 mL/g, an average pore diameter of 1.0 to 2.0 nm, and an absorbance of an infrared absorption band at 1650-1800 cm?1 of no less than 0.005.

Abstract: Disclosed is a dental handpiece wherein the chip air line is selectively switched to the ON-state for using both water and chip air, and to the OFF-state for using only water. The dental handpiece has a switching valve provided between the circumferential chip air channel and the chip air line in the handpiece body for selectively allowing and preventing communication therebetween, wherein opening of the valve switches the communication to the ON-state in which chip air is allowed to pass from the circumferential chip air channel into the chip air line, whereas closing of the valve switches the communication to an OFF-state in which chip air is prevented from passing from the circumferential chip air channel into the chip air line.

Abstract: A dental handpiece has a head section, a neck section, a grip section connected to the grip section, and a drive unit connected to the grip section. The handpiece also has detent means for preventing relative rotation between the neck and grip sections. The detent means includes a detent pin arranged axially slidably in the grip section, spring means for biasing the pin proximally so that the distal end of the pin is arranged inside the grip section in a rest position, and catch means formed at the proximal end of the neck section for receiving the pin for engagement. When the drive unit is brought into connection to the grip section, the pin is pressed distally to project out of the grip section into engagement in the catch means, to thereby prevent relative rotation between the neck section and the grip section.

Abstract: In a double-clutch transmission, a clutch of an input shaft which is not synchronously rotated with a output shaft is connected to synchronize the speed of rotation of the input shaft with that of the engine, and the rotational speed of the input shaft is measured to thereby detect a engine rotational speed.

Abstract: A dental handpiece having a grip with a head in which a treatment tool may be detachably attached. A front casing portion of the grip is continuous to a rear casing portion at an obtuse angle. A first rotary shaft is rotatably supported in the rear casing portion. A cylindrical jacket extends from the head and is arranged in the front casing portion toward the first rotary shaft. A second rotary shaft is rotatably supported in the jacket, and is operatively connected to the treatment tool at one end and to the first rotary shaft at the other end via a gear. The rotary shafts transmit driving force to the head section to drive the treatment tool. The jacket is provided with an engagement groove on its circumferential surface. An engaging device disposed in the rear casing portion detachably engages the groove, thereby fixing the jacket in the front casing portion.

Abstract: The dental handpiece of a center-injection type has a bur sleeve (8, 9) having an axial through hole capable of receiving and detachably holding therein a cutting bur having an axial through hole, upper and lower bearings (10, 11) for rotatably supporting the bur sleeve (8, 9), and an injection nozzle (5) capable of being inserted into the axial through hole of the cutting bur from its proximal end for injecting cooling water through the other end. The dental handpiece (1) further has an upper seal means (17) arranged to seal the space between the upper region of the bur sleeve (8, 9) and the upper bearing (10), and a lower seal means (17?9 arranged to seal the space between the lower region of the bur sleeve (8, 9) and the lower bearing (11).

Abstract: A fryer for business use is provided which can prevent degradation of cooking oil, secure a good cooking environment and improve a work efficiency. To this end, the fryer of this invention comprises: a water tank 32, 82 to store water; an oil tank 9, 51 arranged above the water tank to store the cooking oil in contact with the stored water in the water tank; a heater 13, 52 arranged in an oil layer in the oil tank; and an oil delivery pipe 10, 61 through which to draw the cooking oil in the oil layer by a pump 29, 64 and release it onto a bottom of the water tank 32, 82; wherein the released cooking oil rises through the water layer and flows into a lower part of the oil layer.