Abstract: A cam projection sliding in a cam slot of an arm causes the arm to proceed to an arm when a shutter is in the closed position or the open position and to recede from the arm when the shutter is sliding between the open position and the closed position. A spring is thereby considerably displaced, providing a satisfactory operation of the shutter.

Abstract: An arm (5) is provided with protrusions (56a, 56b) disposed between a spring (7) and the arm (5) and biasing the spring (7) away from a shutter (2) when the shutter (2) is disposed at either one of two positions, a closed position and an open position. This prevents natural vibration of the spring (7) due to extension of the spring (7), thereby preventing noise.

Abstract: A through-hole of a flat spring has a shape that defines an opening area larger than the cross-sectional area of an end segment of a shaft and is subject to contact with the rotating end segment. A through-hole of a plate has an opening area larger than the cross-sectional area of the end segment and smaller than the opening area of the through-hole. The end segment is inserted through the through-hole and the through-hole and is swaged to form a space between the through-hole and the end segment, and the space is filled with grease.

Abstract: A cam projection sliding in a cam slot of an arm causes the arm to proceed to an arm when a shutter is in the closed position or the open position and to recede from the arm when the shutter is sliding between the open position and the closed position. A spring is thereby considerably displaced, providing a satisfactory operation of the shutter.

Abstract: An arm (5) is provided with protrusions (56a, 56b) disposed between a spring (7) and the arm (5) and biasing the spring (7) away from a shutter (2) when the shutter (2) is disposed at either one of two positions, a closed position and an open position. This prevents natural vibration of the spring (7) due to extension of the spring (7), thereby preventing noise.

Abstract: A through-hole of a flat spring has a shape that defines an opening area larger than the cross-sectional area of an end segment of a shaft and is subject to contact with the rotating end segment. A through-hole of a plate has an opening area larger than the cross-sectional area of the end segment and smaller than the opening area of the through-hole. The end segment is inserted through the through-hole and the through-hole and is swaged to form a space between the through-hole and the end segment, and the space is filled with grease.

Abstract: An audio transmission unit 8 is placed on a surface side of a panel unit 4 where a display 7 is provided, and transmits an audio signal in a direction almost perpendicular to the surface of the display 7. When a viewer sitting in a seat behind a front seat 1 turns the display 7 to be faced toward him/her, the audio transmission unit 8 is directed in front of the viewer's eyes, so that stable audio signal can be received in the side of the headphone worn on the head of the viewer.

Abstract: In a state where a panel unit 53 is held at a storing angle with a projecting portion 15 of a click plate 13 fitted in a recessed portion 10 of a bracket 7, the back side of the projecting portion 15 and a pressing piece 20 of a friction plate 18 do not abut on each other, so that only a reaction force of the click plate 13 serves as a resistance. When the panel unit 53 starts turning, the projecting portion 15 abuts on the pressing piece 20 through the elastic deformation at the time when the projecting portion 15 moves out of the recessed portion 10 to get onto a sliding surface 9, so that a sliding resistance is obtained from the reaction forces of the click plate 13 and the friction plate 18 after abutment.

Abstract: In a state where a panel unit 53 is held at a storing angle with a projecting portion 15 of a click plate 13 fitted in a recessed portion 10 of a bracket 7, the back side of the projecting portion 15 and a pressing piece 20 of a friction plate 18 do not abut on each other, so that only a reaction force of the click plate 13 serves as a resistance. When the panel unit 53 starts turning, the projecting portion 15 abuts on the pressing piece 20 through the elastic deformation at the time when the projecting portion 15 moves out of the recessed portion 10 to get onto a sliding surface 9, so that a sliding resistance is obtained from the reaction forces of the click plate 13 and the friction plate 18 after abutment.

Abstract: An audio transmission unit 8 is placed on a surface side of a panel unit 4 where a display 7 is provided, and transmits an audio signal in a direction almost perpendicular to the surface of the display 7. When a viewer sitting in a seat behind a front seat 1 turns the display 7 to be faced toward him/her, the audio transmission unit 8 is directed in front of the viewer's eyes, so that stable audio signal can be received in the side of the headphone worn on the head of the viewer.

Abstract: A plate spring 40 is subjected to folding at a fold portion 41 to form integrally a plate spring portion 42 and a stress relief portion 43m and a distal end of a rotary shaft 30 is secured to a caulking hole of the stress relief portion 43 by caulking.

Abstract: First and second FPC fixing members 12, 13 are fixed within a boss 6 on a second axis Y, and one end of the second member 13 projects to the back of a hinge base 8. An FPC wiring fixing section 26 is fixed on the back of the base 8 on a first axis X. The fixing members pass an FPC 25 from the base 8 side to the side of a monitor 3 to hold the FPC linearly on the axis Y, and are turned integrally with a monitor mounting base 14. The fixing members curve outside the axis Y the FPC 25 that is led out in the direction orthogonal to the axis Y from the one end on the base 8 side of the second member 13 to have a deflection allowance, and fix the FPC to the base 8.

Abstract: A plate 5 fastened to a D-cut section 3c of a rotation shaft 3 by caulking has an engaging hole 5b provided therethrough. Further, a positioning protrusion 4c for engaging the engaging hole 5b is provided in a leaf spring 4 sandwiched between the rotation shaft 3 and the plate 5. The inclination ?1 of the leaf spring 4 made by the amount of a clearance B between the engaging hole 5b and the positioning protrusion 4c that are distant from the rotation central axis X is smaller than the inclination ?2 made by the amount of a clearance A between the D-cut section 3c and the straight portion 4d that are close to the rotation central axis X. Thus, the backlash in the rotation direction of the leaf spring 4 can be reduced by providing the positioning protrusion 4c and the engaging hole 5b.

Abstract: A hinge mechanism 1 includes a rotation shaft 3 connected to a monitor and serving as rotating central axis X; a base 2 pivotally supporting the shaft 3 rotatably, and having click recesses 2b1, 2b2 and a housing position determining recess 2c on a circumference centering the axis X; a plate 5 attached at the end of the shaft 3; and a leaf spring 4 located between the base 2 and plate 5, fit-in by the rotation shaft 3, and having a click projection 4b that fits in the click recesses 2b1, 2b2 and recess 2c to hold the monitor in a predetermined rotation angle position. A sliding friction projection 4c sliding with pressed into contact with the base 2 is formed on the side opposite from the click projection 4b across the axis X, while a cutaway 2e entered by the projection 4c is formed in the base 2.

Abstract: A hinge mechanism includes: a bracket 2 having a rotation shaft portion insertion hole 2a for inserting through a marginal rotating shaft portion 3b thereof, and one engaging concavo-convex section 2b; a plate 5 having a mounting shaft portion insertion hole 5a; and a leaf spring 4 having a mounting shaft portion insertion hole 4a and the other engaging concavo-convex section 4c, and located between the bracket 2 and plate 5 and mounted to the rotation shaft 3, wherein the hole 5a is formed larger than the hole 4a such that the spring 4 is caulked and fixed to the end face of the shaft portion by entering of the outer wall side part of a mounting shaft portion 3c formed on the end face of the portion 3b that is collapsed by caulking into a gap 5c formed between the portion 3c and insertion hole 5a.

Abstract: A plate spring 40 is subjected to folding at a fold portion 41 to form integrally a plate spring portion 42 and a stress relief portion 43m and a distal end of a rotary shaft 30 is secured to a caulking hole of the stress relief portion 43 by caulking.

Abstract: A gear mechanism with torque limiter includes a felt member 14 that is held between a first gear 13 and a second gear 15 coaxially arranged first gear 13 and second gear 15, for transmitting drive power between the gears, such that coupling of drive power between the gears is restricted by slippage of the felt member 14 when an excessive load is applied thereto, wherein multiple protrusions 19a are provided concentrically on the surface of one of the gears 13 (15) in contact with the felt member 14, and concentric grooves 20a corresponding to the protrusions are provided on the surface of the other gear (13) 15.

Abstract: A monitor opening and closing mechanism according to the present invention includes a first guide means guiding a monitor to rotate from home position to a first opened position, and a second guide means guiding the monitor to rotate from the first opened position to a second opened position where the monitor is further opened, wherein the center of rotation about which the second guide means guides the monitor to rotate is disposed more nearly to the side of the home position than the center of rotation about which the first guide means guides the monitor to rotate is disposed.

Abstract: A hinge mechanism 1 includes a rotation shaft 3 connected to a monitor and serving as rotating central axis X; a base 2 pivotally supporting the shaft 3 rotatably, and having click recesses 2b1, 2b2 and a housing position determining recess 2c on a circumference centering the axis X; a plate 5 attached at the end of the shaft 3; and a leaf spring 4 located between the base 2 and plate 5, fit-in by the rotation shaft 3, and having a click projection 4b that fits in the click recesses 2b1, 2b2 and recess 2c to hold the monitor in a predetermined rotation angle position. A sliding friction projection 4c sliding with pressed into contact with the base 2 is formed on the side opposite from the click projection 4b across the axis X, while a cutaway 2e entered by the projection 4c is formed in the base 2.

Abstract: A hinge mechanism includes: a bracket 2 having a rotation shaft portion insertion hole 2a for inserting through a marginal rotating shaft portion 3b thereof, and one engaging concavo-convex section 2b; a plate 5 having a mounting shaft portion insertion hole 5a; and a leaf spring 4 having a mounting shaft portion insertion hole 4a and the other engaging concavo-convex section 4c, and located between the bracket 2 and plate 5 and mounted to the rotation shaft 3, wherein the hole 5a is formed larger than the hole 4a such that the spring 4 is caulked and fixed to the end face of the shaft portion by entering of the outer wall side part of a mounting shaft portion 3c formed on the end face of the portion 3b that is collapsed by caulking into a gap 5c formed between the portion 3c and insertion hole 5a.