Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
66 words
A child seat apparatus comprising: a seat portion (2); a backrest portion (3, 22, 52) upwardly extending from a rear end of said seat portion (2); and a pair of head guards (4, 5, 23, 53, 54) frontwardly extending from both side edges of said backrest portion (3, 22, 52), a space between said pair of head guards (4, 5, 23, 53, 54) being rendered changeable.
Claim 2
Dependent Claim
48 words
A child seat apparatus in accordance with claim 1, wherein respective said head guards (4, 5, 23) are mounted on said backrest portion (3, 22) to be rotatable about axes (14, 24) extending substantially in parallel with the direction of upward extension of said backrest portion (3, 22).
Claim 3
Dependent Claim
32 words
A child seat apparatus in accordance with claim 2, further comprising engaging means (17, 18) for maintaining a plurality of positions being obtained by rotation of respective said head guards (4, 5).
Claim 4
Dependent Claim
101 words
A child seat apparatus in accordance with claim 2, further comprising a rotation operating member (26) being rotatably provided on a rear surface of said backrest portion (22), an angle fixing mechanism (39) being engaged with said rotation operating member (26) for fixing a plurality of rotation angles of said rotation operating member (26) respectively, and a pair of rigid rods (3, 38) having first ends being coupled to two positions (34, 35) of said rotation operating member (26) respectively between which a rotation center (27) is located and second ends being coupled to said pair of head guards (23) respectively.
Claim 5
Dependent Claim
89 words
A child seat apparatus in accordance with claim 4, wherein said rotation operating member (26) has a plurality of key ways (30, 31, 32) being provided to be distributed along its peripheral direction, said angle fixing mechanism (39) comprising a key member (40) being selectively engaged in any one of said plurality of key ways (30, 31, 32), and a guide (41) for guiding said key member (40) in a direction to be engaged in any one of said key ways (30, 31, 32) and a direction opposite thereto.
Claim 6
Dependent Claim
42 words
A child seat apparatus in accordance with claim 5, wherein said angle fixing mechanism (39) further comprises a spring (42) for urging said key member (40) in said direction to be engaged in any one of said key ways (30, 31, 32).
Claim 7
Dependent Claim
29 words
A child seat apparatus in accordance with claim 1, wherein respective said head guards (53, 54) are mounted on said backrest portion (52) to be translatable along its width.
Claim 8
Dependent Claim
94 words
A child seat apparatus in accordance with claim 7, further comprising a rectilinear operating member (66) being rectilinearly movable in the direction of upward extension of said backrest portion (52), a position fixing mechanism (70 to 74, 75) for fixing a plurality of positions of movement of said rectilinear member (66), and a transmission mechanism (68, 69, 78, 79, 80, 81) for transmitting a rectilinear operation of said rectilinear operating member (66) to said pair of head guards (53, 54) respectively for simultaneously approaching/separating said pair of head guards (53, 54) to/from each other.
Claim 9
Dependent Claim
68 words
A child seat apparatus in accordance with claim 8, wherein said backrest portion (52) is provided with a plurality of engaging holes (70 to 74) along a path of movement of said rectilinear member (66), said position fixing mechanism comprising an engaging member (75) being held by said rectilinear operating member (66) to be selectively engaged in any one of said plurality of engaging holes (70 to 74).
Claim 10
Dependent Claim
41 words
A child seat apparatus in accordance with claim 9, wherein said position fixing mechanism further comprises a spring (76) for urging said engaging member (75) in a direction to be engaged in any one of said engaging holes (70 to 74).
Claim 11
Dependent Claim
74 words
A child seat apparatus in accordance with claim 8, wherein said transmission mechanism comprises a pair of guide pins (80, 81) being provided to integrally operate with said rectilinear operating member (66), and a pair of guide paths (78, 79) being provided on said pair of head guards (53, 54) respectively for movably guiding said guide pins (80, 81) respectively, said pair of guide paths (78, 79) extending to be inclined in opposite directions.
Claim 12
Dependent Claim
35 words
A child seat apparatus in accordance with claim 11, wherein said pair of guide paths are provided by a pair of slots (78, 79) being provided in said pair of head guards (53, 54) respectively.
Claim 13
Dependent Claim
55 words
A seat having a backrest portion extending upwardly from a seat portion and having a pair of spaced-apart head guards mounted to the backrest for protecting from both sides the head of a person seated on the seat, wherein the relative positions of the head guards are selectively adjustable for adjusting the space defined therebetween.