Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
165 words
An opening/closing mechanism, characterized by a base (10) attached to a main body (20) of an apparatus; an arm (18) attached to an opening/closing portion (21) of said apparatus and axially supported on said base (10) so as to turn freely; a rotary plate (12, 13) which turnes together with said arm (18) and which has a projection (13d); a pop-up plate (14) having an engaging portion (14b, 14c), wherein when said opening/closing portion (21) is closed up to a prescribed position, the engaging portion (14c) engages with the projection (13d) of said rotary plate so that said pop-up plate turnes together with the rotary plate (13); and a resilient member (19) provided between said pop-up plate (14) and said base (10) and compressed by turning of said pop-up plate (14), wherein when said opening/closing portion (21) is released, said rotary plate (13) is turned together with said pop-up plate (14) by a compressive reaction force, thereby opening/closing portion (21) up to a prescribed position.
Claim 2
Dependent Claim
44 words
An opening/closing mechanism according to claim 1, characterized by a shaft (11) rotatably supported by said base (10), wherein said arm (18) is attached to said shaft, and wherein said rotary plate (12, 13) and pop-up plate (14) are rotatably supported by said shaft.
Claim 3
Dependent Claim
42 words
An opening/closing mechanism according to claim 2, characterized in that said shaft (11) has a linear groove which is formed at an outer periphery thereof, and wherein said rotary plate has an inwardly directed projection engaged with said groove of said shaft.
Claim 4
Dependent Claim
18 words
An opening/closing mechanism according to claim 1, characterized in that said resilient member (19) comprises a leaf spring.
Claim 5
Dependent Claim
21 words
An opening/closing mechanism according to claim 1, characterized in that said base (10) has a stopper which contacts said pop-up plate.
Claim 6
Dependent Claim
53 words
An opening/closing mechanism according to claim 2, characterized by further comprising cup springs (15, 16) supported by said shaft (11) and a push nut (17) attached to the tip of said shaft (11) to fix said rotary plate (12, 13), pop-up plate (14) and base (10) by the pressure of said cup spring.
Claim 7
Dependent Claim
120 words
An opening/closing mechanism, characterized by a base (30) attached to a main body of an apparatus; a shaft (31) attached to an opening/closing portion of said apparatus and supported on said base (30) so as to turn freely; a rotary plate (32, 33) which turnes together with said shaft (31); and a fixed plate (34) contiguous to said rotary plate (32, 33) and abutted against said base (30) to suppress turning of said rotary plate (32, 33); a push nut (37) attached to an end portion of said shaft (31) for bringing said rotary plate (32, 33) and said fixed plate (34) into contact between itself and said base, said push nut being fitted onto the shaft by being pushed.