초록 ▼

An adjustable baby chair is disclosed. The baby chair has a first locking device; a height adjusting device; a seat adjusting device; a second locking device; and a foot rest. With such an arrangement, the feet of the chair are foldable, the angle, height of the seat are adjustable, the seat is fixe

An adjustable baby chair is disclosed. The baby chair has a first locking device; a height adjusting device; a seat adjusting device; a second locking device; and a foot rest. With such an arrangement, the feet of the chair are foldable, the angle, height of the seat are adjustable, the seat is fixed after the baby is seated in the seat and the height of the foot rest is adjustable.

대표청구항 ▼

[ What is claimed is:] [6.] In an adjustable chair having a seat (D), a mechanism composed of two pairs of feet, each pair being oppositely mounted on sides of the chair having three legs (A,B,C), a foot rest (5), a plate (6) and rollers (G) rotatably mounted on a joint between leg (A) and leg (C),

[ What is claimed is:] [6.] In an adjustable chair having a seat (D), a mechanism composed of two pairs of feet, each pair being oppositely mounted on sides of the chair having three legs (A,B,C), a foot rest (5), a plate (6) and rollers (G) rotatably mounted on a joint between leg (A) and leg (C), wherein the leg (A) and leg (C) are substantially curved and the leg (B) is substantially straight, the leg (A) and the leg (C) being able to be securely connected with each other and the two ends of leg (B) being mounted on the joint of leg (A) and leg (C) and a mediate portion of leg (A) respectively and a first locking device (1) mounted on the joint between the leg (A) and the leg (C) so as to allow the leg (A) and the leg (C) to fold with respect to each other, wherein the improvement comprises:a first tubular connector (10) provided with a first tube (11) to receive the leg (C) therein, an L-shaped side cover (12) extending from one side of the first tube (11) and having an elongate rod (13) traversely extending from an inside therefrom, an annular flange (12a) and a first hole (12b) formed in the side cover (12), a spring (14) mounted around the elongate rod (13), a hollow press (15) configured to receive the spring (14) therein and having a button (15a) movable with respect to the body of the press (15) and an extension (15b) formed on a side of the body of the press (15), a connector (16) having a receiving hole (16a) defined to receive the button (15a) therethrough after the spring (14) is received in the button (15a), a pole (16d) extending outside therefrom and having a through hole (16b) defined therethrough and a connecting hole (16c) defined to correspond to the first hole (12b) of the first tubular connector (10) so as to securely connect the connector (16) with the first tubular connector (10) with a locking device, and a connecting member (17) having a second hole (17a) defined to allow the pole (16d) to extend therethrough, a first tube (17b) with a second tube (17c) respectively and concentrically formed therewith so that one end of the leg (A) is able to be received between a gap between the first and the second tubes (17b, 17c), a first cutout (17d) and a second cutout (17e) respectively and peripherally defined in an outer face defining the second hole (17a), and a protrusion (17f) formed between the first and the second cutouts (17d, 17e) and a space (17g);a seat adjusting device (2) mounted at a joint of the seat (D) and leg (B) and having a housing (23) provided with a second tube (21) integrally formed on a side of the housing (23) for receiving a distal end of the leg (B) therein, a hollow extension (24) and a pole (25), a linking member (28) having a plurality of leaves (281) spaced apart from each other and each provided with a concentric hole (28a) aligned with one another for receiving a first shaft (29) therein and a through hole (28b) defined to receive the pole (25) therein so that the linking member (28) is able to pivot in relation to the housing, a substantially S-shaped linkage (26) having an aperture (26a) defined to receive a second shaft (27) therein and an elongate hole (26b) defined to receive the first shaft (29) therethrough before the first shaft (29) extends through the entire concentric holes (28a) such that the linkage (26) is able to pivot with respect to the linking member (28), a substantially U-shaped member (30) received in the housing (23) and provided with a first opening (30a) defined in a base of the U-shaped member (30), a pair of second openings (30b) defined in opposite faces of the U-shaped member (30), a pair of first holes (30d1) defined in the opposite faces of the U-shaped member (30) and a pair of second holes (30e1) defined in the opposite faces of the U-shaped member (30), a first linking member having a base (31), a friction face (32) provided on one side of the base (31) and corresponding to the first opening (30a), a seat (33) mounted on an opposite side of the base (31) with respect to the friction face (32) and provided with an indentation (33a) defined therein and an extension rod (34) extending outward from the seat (33) and having a hole (34a) defined in a mediate portion of the rod (34) and a traverse rod (35) formed on the distal end of the extension rod (34);a seat adjusting device (3) mounted between the seat (D) and the leg (B) and comprising a bracket (47) peripherally defining therein a cutout (47a), a plate (46) received in the cutout (47a) and having a plurality of troughs (46a) defined in a periphery thereof, a substantially U-shaped link (45) having a pair of legs extending out therefrom and each provided with a through hole (45b) defined in a distal end thereof and a sleeve (45a) received between the pair of legs and selectively received in one of the troughs (46a), a connector (42) having a plurality of extensions (42a), one of which is securely connected with the body of the link (45), an elongate link (44) one end of which is connected with one end of the connector (42) with a base (43a) of a press (43) and the other end of which is connected with another end of the link (45), wherein one distal end of the elongate link (44) abuts one end of a spring (41) so as that when the spring (41) is compressed, the elongate link (44) is lifted and the elongate link (44) is lifted upward, wherein the link (45) pivots due to the extension (42a) and wherein the sleeve (45a) disengages with the plate (46) from one of the troughs (46a), and wherein releasing the press (43), the recoil force of the spring (41) will allow the press (43) to return to its original position so that the sleeve (45a) is once again received in one of the troughs (46a);a second locking device (2) mounted at a joint of leg (A) and leg (B) and including a third tube (55) configured to receive the leg (A) therethrough and having a hollow support (54) integrally formed therewith, wherein the hollow support (54) has a protrusion (57) internally and centrally formed therein, a pole (57a) formed on the inner face thereof, a spring (53) mounted around the protrusion (57), an insert (51) partially received in the hollow support (54) and a lower tube (51a) integrally formed therewith and an upper tube (51b) configured to receive a distal end of the leg (B), wherein the lower tube (51a) has a first hole (52a) defined in the bottom thereof and an elongate second hole (52b), the first hole (52a) being aligned with a pair of through holes (54b) so that a pin (54a) is able to be extended through the through holes (54b) and the first hole (52a) of the lower tube (51a), wherein the spring (53) urges against the bottom of the lower tube (51a) so as to allow the insert (51) to be pivoted with respect to the hollow support (54), whereby after a baby sits in the seat (D), the weight of the baby will push down the seat (D) and to allow the pole (57a) to be received in the second hole (52b) to limit the pivotal movement of the insert (51) and secure the safety of the baby; anda foot rest (5) including two plates (65) each provided with a plurality of slots (65a) each with a pair of opposite lips (65b), an upper plate (61) having two slits (61a) and (61b) respectively defined in the outer face thereof, a lower plate (62) having two substantially L-shaped hooks (63) securely mounted on the face thereof and a head (63a) formed on a free end of the hook (63), wherein, the L-shaped hooks (63) are inserted into the slits (61b) to engage the upper plate (61) and the lower plate (62) and the head (63a) is received in aligned slots (65a), such that the assembly of the foot rest (5) is accomplished, wherein the heads (63a) are able to be disengaged from the slots (65a) and relocate the heads (63a) into other aligned slots (65a) to complete an adjustment.