Abstract: A precursor sol of aluminum oxide includes particles containing a hydrolysate and/or a condensate of an aluminum compound, a solvent, and an organo aluminum compound. When a pulsed-NMR T2 relaxation curve of nuclide 1H of the precursor sol of aluminum oxide includes two components with different T2 relaxation times and the component with the longer T2 relaxation time has an abundance level of CL (%) and the component with the shorter T2 relaxation time has an abundance level of CS (%), the relative proportion RCS (%) defined by [{CS/(CS+CL)}×100] is in the range of 23.5% to 50.0%, both inclusive.

Abstract: A housing (20) is formed with pairs of projections (31A, 31B) at opposite sides in a width direction perpendicular to a connecting direction and supporting shafts (29) located between the projections (31A, 31B) at the opposite widthwise sides and behind the projections (31A, 31B) in the connecting direction and adapted to rotatably support a lever (60). The lever (60) is formed with stoppers for preventing a rotation of the lever (60) by being engaged with the projections (31A) on one widthwise side at a connection start position. Further, the lever (60) is formed with pressing portions (72) for correcting a connection posture of the housing (20) by pressing the projections (31B) on the other widthwise side in the connecting direction when the housing (20) is inclined from a proper connection posture with respect to a mating housing (80) in a process reaching a connection position.

Abstract: If connection postures of a first and a second housings (10, 40) are inclined from proper ones at a final stage of a connecting process of the first and second housings (10, 40,) pressing portions (73) of a lever (60) press pressable portions (29) of the first housing (10) to correct the connection postures of the first and second housings (10, 40). A mutual connection force of the first and second housings (10, 40) reaches a maximum value when an operable portion (61) of the lever (60) is located at a position near the rear surface of a cover (12) or overlapping the rear surface of the cover (12) before the pressing portions (73) press the pressable portions (29) in the connecting process of the first and second housings (10, 40).

Abstract: A connector member is formed with first slides (22F, 22R) and first locks (23). A cover (70) is formed with second slides (76F, 76R) and second locks (79). The cover (70) is mounted on the connector member slidably between a standby position and a mount position. The first and second slides (22F, 22R) and (76F, 76R) slide on each other to guide a sliding movement of the cover (70) from the standby position to the mount position. At the mount position, the first and second locks (23, 79) engage to prevent a returning movement of the cover (70) to the standby position. The connector member is formed with guide paths (55) for positioning and guiding the cover (70) to the standby position.

Abstract: Provided are an optical member capable of maintaining a high level of antireflectiveness while preventing fogging under conditions of total reflection, and a method of manufacturing the same. The optical member includes: a substrate; an intermediate layer; and an aluminum oxide layer which are stacked in this order, the aluminum oxide layer having a surface with an irregular structure made of aluminum oxide crystals. The intermediate layer includes multiple columnar structures inclined with respect to a substrate surface, and includes holes between the columnar structures. The method of manufacturing an optical member includes: forming on a substrate surface an intermediate layer including multiple columnar structures by oblique deposition; and forming a film by applying on the intermediate layer a solution containing aluminum compound and subjecting the film to hot water treatment to form on the film surface an aluminum oxide layer having an irregular structure made of aluminum oxide crystals.

Abstract: Provided is an optical member where at least a layer having polyimide as a main component and a layer having a textured structure arising from a crystal containing aluminum oxide as a main component are stacked in this order. The polyimide includes a silane group in a side chain via an amide bond.

Abstract: A connector has a housing (10) from the rear surface of which wires (200) are to be drawn out, and a cover (70) to be mounted on the housing (10) for specifying a draw-out direction of the wires (200) at a position facing the rear surface of the housing (10). A plurality of spaced apart legs (77) are formed on a peripheral portion of the cover (70) and project toward the housing (10) for engaging the housing (10). Spaces (60) for exposing the wire (200) drawn out from the rear surface of the housing (10) are defined between the legs (77) with the cover (70) mounted on the housing (10).

Abstract: A lever (40) is rotatable about shafts (19) between a projecting position where side plates (42) project to a large extent from the rear end of a housing (10) and a retracted position where the side plates (42) do not project far the rear end of the housing (10). Projecting pieces (61) project forward on front end edges of the side plates (42) and leading ends of the projecting pieces (61) overlap the rear end of the housing (10) in forward and backward directions at the projecting position. At the projecting position, spaces (63, 64) are formed by the opposite side edges of the projections (61), the front edges of the side plates (42) and the rear end of the housing (10). These spaces include escaping spaces (63) that receive cam followers (85) on the mating housing (80) at the retracted position.

Abstract: A housing (20) is formed with pairs of projections (31A, 31B) at opposite sides in a width direction perpendicular to a connecting direction and supporting shafts (29) located between the projections (31A, 31B) at the opposite widthwise sides and behind the projections (31A, 31B) in the connecting direction and adapted to rotatably support a lever (60). The lever (60) is formed with stoppers for preventing a rotation of the lever (60) by being engaged with the projections (31A) on one widthwise side at a connection start position. Further, the lever (60) is formed with pressing portions (72) for correcting a connection posture of the housing (20) by pressing the projections (31B) on the other widthwise side in the connecting direction when the housing (20) is inclined from a proper connection posture with respect to a mating housing (80) in a process reaching a connection position.

Abstract: A precursor sol of aluminum oxide contains a polycondensate formed by the hydrolysis of an aluminum alkoxide or an aluminum salt, a solvent, and an organic aluminum compound having a specific structure. An optical member is produced by a process including a step of immersing an aluminum oxide film in a hot water with a temperature of 60° C. to 100° C. to form a textured structure made of aluminum oxide crystals, the aluminum oxide film being formed by feeding the precursor sol of aluminum oxide onto a base. A method for producing an optical member includes a step of immersing an aluminum oxide film in a hot water with a temperature of 60° C. to 100° C. to form a textured structure made of aluminum oxide crystals, the aluminum oxide film being formed by feeding the precursor sol of aluminum oxide onto a base.

Abstract: A connector has a housing (10) from the rear surface of which wires (200) are to be drawn out, and a cover (70) to be mounted on the housing (10) for specifying a draw-out direction of the wires (200) at a position facing the rear surface of the housing (10). A plurality of spaced apart legs (77) are formed on a peripheral portion of the cover (70) and project toward the housing (10) for engaging the housing (10). Spaces (60) for exposing the wire (200) drawn out from the rear surface of the housing (10) are defined between the legs (77) with the cover (70) mounted on the housing (10).

Abstract: A connector member is formed with first slides (22F, 22R) and first locks (23). A cover (70) is formed with second slides (76F, 76R) and second locks (79). The cover (70) is mounted on the connector member slidably between a standby position and a mount position. The first and second slides (22F, 22R) and (76F, 76R) slide on each other to guide a sliding movement of the cover (70) from the standby position to the mount position. At the mount position, the first and second locks (23, 79) engage to prevent a returning movement of the cover (70) to the standby position. The connector member is formed with guide paths (55) for positioning and guiding the cover (70) to the standby position.

Abstract: A lever (40) is rotatable about shafts (19) between a projecting position where side plates (42) project to a large extent from the rear end of a housing (10) and a retracted position where the side plates (42) do not project far the rear end of the housing (10). Projecting pieces (61) project forward on front end edges of the side plates (42) and leading ends of the projecting pieces (61) overlap the rear end of the housing (10) in forward and backward directions at the projecting position. At the projecting position, spaces (63, 64) are formed by the opposite side edges of the projections (61), the front edges of the side plates (42) and the rear end of the housing (10). These spaces include escaping spaces (63) that receive cam followers (85) on the mating housing (80) at the retracted position.

Abstract: If connection postures of a first and a second housings (10, 40) are inclined from proper ones at a final stage of a connecting process of the first and second housings (10, 40,) pressing portions (73) of a lever (60) press pressable portions (29) of the first housing (10) to correct the connection postures of the first and second housings (10, 40). A mutual connection force of the first and second housings (10, 40) reaches a maximum value when an operable portion (61) of the lever (60) is located at a position near the rear surface of a cover (12) or overlapping the rear surface of the cover (12) before the pressing portions (73) press the pressable portions (29) in the connecting process of the first and second housings (10, 40).

Abstract: An auxiliary housing (20) inserted into a frame (10) is locked in a retained state by the locking action of resiliently deformable lock arms (13) and locks (21). The lock arms (13) and the locks (21) include locking surfaces (17, 23) that are substantially normal to an inserting direction of the auxiliary housing (20) and come into contact with each other with the lock arms (13) and the locks (21) engaged in an insertion process of the auxiliary housing (20). When an inserting force exceeding a locking force of the locking surfaces (17, 23) is applied to the auxiliary housing (20), the lock arms (13) are resiliently deformed to disengage the locking surfaces (17, 23).

Abstract: A precursor sol of aluminum oxide includes a solvent and particles containing a hydrolysate of an aluminum compound and/or a condensate of the hydrolysate, in which the particles have an average particle size of 2.5 nm to 7 nm. A method for producing an optical member includes the steps of feeding the precursor sol of aluminum oxide described above onto a base to form an aluminum oxide film and immersing the aluminum oxide film in hot water with a temperature of 60° C. to 100° C. to form a textured structure comprising aluminum oxide boehmite.

Abstract: Two supports (24) are formed on one side surface of a first housing (20) at positions symmetrical to a center of a connection area with a second housing (40) in a lengthwise direction (L). The lever (60) is selectively mounted in a first mode on one of the two supports (24) and rotated toward one side or in a second mode on the other support (24) and rotated toward the other side. The lever (60) has a first and second parts for exerting pushing forces on the first housing (20) in a direction to proceed with a connecting operation of the housings (20, 40) as the lever (60) is rotated. The first part is a cam groove (68) engageable with a follower pin (43) of the second housing (40) and the second part is a recessed groove (73) engageable with the support (24) not supporting the lever (60).

Abstract: Two supports (24) are formed on one side surface of a first housing (20) at positions symmetrical to a center of a connection area with a second housing (40) in a lengthwise direction (L). The lever (60) is selectively mounted in a first mode on one of the two supports (24) and rotated toward one side or in a second mode on the other support (24) and rotated toward the other side. The lever (60) has a first and second parts for exerting pushing forces on the first housing (20) in a direction to proceed with a connecting operation of the housings (20, 40) as the lever (60) is rotated. The first part is a cam groove (68) engageable with a follower pin (43) of the second housing (40) and the second part is a recessed groove (73) engageable with the support (24) not supporting the lever (60).

Abstract: Tanks of a first heat exchanger have plane sections perpendicular to bottoms having a plurality of tube insertion holes formed therein. Tanks of a second heat exchanger with circular cross sections have bottoms having a plurality of tube insertion holes formed therein. The axes of the tube insertion holes of the first and second heat exchangers are held in parallel with each other. The second heat exchanger is in contact with the plane sections of the first heat exchanger tank.

Abstract: Tanks of a first heat exchanger have plane sections perpendicular to bottoms having a plurality of tube insertion holes formed therein. Tanks of a second heat exchanger with circular cross sections have bottoms having a plurality of tube insertion holes formed therein. The axes of the tube insertion holes of the first and second heat exchangers are held in parallel with each other. The second heat exchanger is in contact with the plane sections of the first heat exchanger tank.