Abstract: A rack biasing device includes a rack guide configured to guide movement of a rack shaft, a cylindrical guide member attached to a rack housing, an annular first sealing member configured to provide a seal between the guide member and the rack guide, a biasing member disposed on one side of the rack guide opposite to the rack shaft, an engaging member configured to cause the biasing member to generate biasing force to push the rack shaft toward a pinion shaft, and a second sealing member configured to provide a seal between the guide member and the rack guide, and abut against the engaging member. The rack guide has an annular distributing portion in an end portion that faces the engaging member.

Abstract: A circular saw (1) includes a base plate (2) and a saw blade assembly (3) including a lower blade guard (9) for covering a saw blade (6). The blade guard includes a sleeve portion (10) rotatably fitted on a bearing box (8) coupled to the saw blade assembly and a sectoral portion (11) extending radially from the sleeve portion in the rear of the blade. A connecting bar (13) projects radially rearward from the sectoral portion. A spring (14) is stretched between the top of the connecting bar (13) and a lower rear portion of an upper blade guard (4) close to the base plate. When not in use, torque, generated as the product of the spring's tensile force and the perpendicular distance (S) from the line of action or the force to the axis of rotation (O), rotates the blade guard to a closed position.

Abstract: A shielding connector has a female and male housings (30; 60), each of which has an inner housing (31, 61) that accommodates terminal fittings (20; 25). Metal shells (50, 80) are mounted on the peripheries of the inner housings (31, 61) and electromagnetically shield the female and male terminal fittings (20; 25) when the housings (30; 60) are connected. The metal shells (50; 80) are configured to achieve secure mounting, effective shielding and a small cross section. A detector (90) is provided to ensure complete connection and is configured to prevent inadvertent separation of the housings (30; 60).

Abstract: A waterproof resilient plug (20) has a trunk portion (11) to be brought into close contact with the inner circumferential surface of a terminal insertion hole (C) and a fixing portion (12) extending from the leading end of the trunk (11) and to be pressed against the outer circumferential surface of a wire (W) by insulation barrels (20a). The plug (20) is formed along its longitudinal axis with a wire insertion hole (13) that can be brought into close resilient contact with the outer surface of the (W). An inner diameter of the wire insertion hole (13) aligned with the fixing portion (12) is smaller than the one at the side of trunk (11), whereby the fixing portion (12) can be held strongly in close contact with the outer surface of the wire (W).

Abstract: A shielding connector has a female and male housings (30; 60), each of which has an inner housing (31, 61) that accommodates terminal fittings (20; 25). Metal shells (50, 80) are mounted on the peripheries of the inner housings (31, 61) and electromagnetically shield the female and male terminal fittings (20; 25) when the housings (30; 60) are connected. The metal shells (50; 80) are configured to achieve secure mounting, effective shielding and a small cross section. A detector (90) is provided to ensure complete connection and is configured to prevent inadvertent separation of the housings (30; 60).

Abstract: A waterproof resilient plug (20) has a trunk portion (11) to be brought into close contact with the inner circumferential surface of a terminal insertion hole (C) and a fixing portion (12) extending from the leading end of the trunk (11) and to be pressed against the outer circumferential surface of a wire (W) by insulation barrels (20a). The plug (20) is formed along its longitudinal axis with a wire insertion hole (13) that can be brought into close resilient contact with the outer surface of the wire (W). An inner diameter of the wire insertion hole (13) aligned with the fixing portion (12) is smaller than the one at the side of trunk (11), whereby the fixing portion (12) can be held strongly in close contact with the outer surface of the wire (W).

Abstract: The invention improves the assembly operation of a connector provided with a detecting member. A female housing 20 is provided with a locking arm 33 capable of engaging with a locking protrusion 14 of a male housing 10. A detecting member 50 capable of moving in an anterior-posterior direction is attached to an upper face of this locking arm 33. The detecting member 50 has an operating member 53 joined to a posterior end of a main body 51 by a hinge 52. A finger engages from the posterior with the operating member 53 to push in the detecting member 50, this detecting member 50 being pushed in its direction of fitting in an inclined downwards direction. When the detecting member 50 is in a waiting position, the operating member 53 thereof is located above a posterior portion of the upper face of the locking arm 33. This posterior portion of the upper face of the locking arm 33 has a guiding inclined face 44 formed thereon, this guiding inclined face 44 being inclined downwards in the pushing-in direction.

Abstract: A circular saw (1) includes a base plate (2) and a saw blade assembly (3) which in turn includes a lower blade guard (9) for covering a saw blade (6). The blade guard includes a sleeve portion (10) rotatably fitted on a bearing box (8) coupled to the saw blade assembly and a sectoral portion (11) which extends radially from the sleeve portion in the rear of the blade. A connecting bar (13) projects radially rearward from the sectoral portion at a 40-degree angle to the base plate. A spring (14) is stretched between the top of the connecting bar (13) and a lower rear portion of an upper blade guard (4) close to the base plate. When not in use, the blade guard is rotated to the closed position by the torque generated as the product of the spring's tensile force and the perpendicular distance (S) from the line of action or the force to the axis of rotation (O).

Abstract: A lock arm (25) and two preventive walls (32) are provided on the upper face of the female housing (20), and a detecting member (40) is mounted between both preventing walls (32) from the back. Two engaging arms (51) are provided on the detector (40). The engaging faces (53) at the front end of the detecting member (25) are engaged with an engaging protrusive area (37) that project from the preventing wall (32). The detector ( ) is stopped in advance at the standby position. Inside the hood (11) of male housing (10), a pair of releasing ribs (60) are provided, and the upper face extending along an interfitting direction of both housings (10) and (20) is connected with the ceiling area of hood (11).

Abstract: The invention improves the assembly operation of a connector provided with a detecting member. A female housing 20 is provided with a locking arm 33 capable of engaging with a locking protrusion 14 of a male housing 10. A detecting member 50 capable of moving in an anterior-posterior direction is attached to an upper face of this locking arm 33. The detecting member 50 has an operating member 53 joined to a posterior end of a main body 51 by a hinge 52. A finger engages from the posterior with the operating member 53 to push in the detecting member 50, this detecting member 50 being pushed in its direction of fitting in an inclined downwards direction. When the detecting member 50 is in a waiting position, the operating member 53 thereof is located above a posterior portion of the upper face of the locking arm 33. This posterior portion of the upper face of the locking arm 33 has a guiding inclined face 44 formed thereon, this guiding inclined face 44 being inclined downwards in the pushing-in direction.

Abstract: A lock arm (25) and two preventive walls (32) are provided on the upper face of the female housing (20), and a detecting member (40) is mounted between both preventing walls (32) from the back. Two engaging arms (51) are provided on the detector (40). The engaging faces (53) at the front end of the detecting member (25) are engaged with an engaging protrusive area (37) that project from the preventing wall (32). The detector ( ) is stopped in advance at the standby position. Inside the hood (11) of male housing (10), a pair of releasing ribs (60) are provided, and the upper face extending along an interfitting direction of both housings (10) and (20) is connected with the ceiling area of hood (11).

Abstract: A strobe device is provided having a light emitting unit which emits light and a condenser lens which converges strobe light from the light emitting unit onto an object to be taken by a photographing lens. At least one of the light emitting unit and the condenser lens is movable between a normal illuminating position, in which the direction of illumination of the strobe light is parallel with the optical axis of the photographing lens, and a macro-illuminating position, in which the direction of illumination of the strobe light is inclined towards the optical axis of the photographing lens.

Abstract: A rotating polygon mirror includes a polygon cylinder having a reflection mirror surface formed on at least one of the sides thereof, and mount portions formed on an upper surface and a lower surface thereof, which are to be held by mount members of a laser scan type optical system. At least one of the mount portions on the upper and lower surfaces has such a shape that, when two rotating polygon mirrors are stacked with their non-corresponding mount portions abutting each other, a reference surface formed in at least one of the mount portions of one rotating polygon mirror does not contact the mount portion of the other rotating polygon mirror.