Infant carrier

1. An infant carrier comprising:

an infant support portion;

a carrying handle including a handle part and a side segment, the side segment being pivotally connected with the infant support portion, and the handle part having a side portion and being slidably connected with the side segment with the side portion telescopically connected with the side segment, the handle part and the side segment being rotatable in unison relative to the infant support portion for adjusting an inclination of the carrying handle, and the handle part being slidable relative to the side segment for adjusting an extension of the handle part from the side segment; and

a locking mechanism carried with the handle part and operable to lock the handle part to the side segment so that the handle part is held at a desired extension from the side segment, wherein the locking mechanism includes a latch carried with the side portion of the handle part, an actuating part that is disposed inside the side portion of the handle part and is connected with the latch so that the actuating part and the latch are movably linked to each other, and an operating part that is connected with the actuating part and is exposed on the handle part for operation, the operating part being connected with the actuating part via a linking element disposed inside the side portion of the handle part;

wherein the latch is movable to protrude outward or retract toward an interior of the side portion for engaging with or disengaging from the side segment;

wherein the actuating part and the latch are movable in a concurrent manner for engaging and disengaging the latch with respect to the side segment; and

wherein the operating part, the linking element and the actuating part are slidable in unison relative to the side portion of the handle part.

2. The infant carrier according to claim 1 , wherein the operating part is placed at a location on the side portion that has the operating part adjacent to an end of the side segment when the handle part is in a fully retracted position relative to the side segment.

3. The infant carrier according to claim 1 , wherein the latch is slidably connected with the side portion of the handle part.

4. The infant carrier according to claim 1 , wherein the actuating part is slidably assembled with the side portion of the handle part, and is slidably connected with the latch.

5. The infant carrier according to claim 4 , wherein the latch has a pin, and the actuating part has a first and a second ramp surface, the actuating part sliding in a first direction to urge the latch to disengage from the side segment via a sliding contact between the pin and the first ramp surface, and the actuating part sliding in a second direction opposite to the first direction to urge the latch to engage with the side segment via a sliding contact between the pin and the second ramp surface.

6. The infant carrier according to claim 5 , wherein the actuating part has a U-shaped portion that extends to two opposite sides of the latch, the U-shaped portion having an elongate slot through which the pin is slidably received, the first and second ramp surfaces being respectively defined by two opposite inner edges of the elongate slot.

7. The infant carrier according to claim 1 , wherein the locking mechanism further includes a spring connected with the actuating part, the spring biasing the actuating part to move in a direction for urging the latch to engage with the side segment.

8. The infant carrier according to claim 1 , wherein the operating part is slidably connected with the handle part.

9. The infant carrier according to claim 1 , wherein the operating part includes a sleeve disposed around the side portion.

10. The infant carrier according to claim 1 , wherein the linking element is a rod respectively connected with the operating part and the actuating part.

11. The infant carrier according to claim 1 , being implemented as a child safety seat.

12. An infant carrier comprising:

an infant support portion;

a carrying handle including a handle part and a side segment, the side segment being pivotally connected with the infant support portion, and the handle part having a side portion slidably connected with the side segment, the handle part and the side segment being rotatable in unison relative to the infant support portion for adjusting an inclination of the carrying handle, and the handle part being slidable relative to the side segment for adjusting an extension of the handle part from the side segment; and

a locking mechanism carried with the handle part and operable to lock the handle part to the side segment so that the handle part is held at a desired extension from the side segment;

wherein the locking mechanism includes a latch that is carried with the side portion and is movable to engage with and disengage from the side segment, and an operating part that is disposed around the side portion and is slidable upward and downward along the side portion to cause the latch to disengage from and engage with the side segment.

13. The infant carrier according to claim 12 , wherein the latch is movable to protrude outward or retract toward an interior of the side portion for engaging with or disengaging from the side segment.

14. The infant carrier according to claim 12 , wherein the operating part is placed at a location on the side portion that has the operating part adjacent to an end of the side segment when the handle part is in a fully retracted position relative to the side segment.

15. The infant carrier according to claim 12 , wherein the locking mechanism further includes an actuating part connected with the latch so that the actuating part and the latch are movably linked to each other, the actuating part and the latch being movable in a concurrent manner for engaging and disengaging the latch with respect to the side segment.

16. The infant carrier according to claim 15 , wherein the operating part is connected with the actuating part via a linking element disposed inside the side portion of the handle part, and the operating part, the linking element and the actuating part are slidable in unison relative to the side portion of the handle part.

17. The infant carrier according to claim 15 , wherein the actuating part is slidably assembled with the side portion of the handle part, and is slidably connected with the latch.

18. The infant carrier according to claim 15 , wherein the latch has a pin, and the actuating part has a first and a second ramp surface, the actuating part sliding in a first direction to urge the latch to disengage from the side segment via a sliding contact between the pin and the first ramp surface, and the actuating part sliding in a second direction opposite to the first direction to urge the latch to engage with the side segment via a sliding contact between the pin and the second ramp surface.

19. The infant carrier according to claim 18 , wherein the actuating part has a U-shaped portion that extends to two opposite sides of the latch, the U-shaped portion having an elongate slot through which the pin is slidably received, the first and second ramp surfaces being respectively defined by two opposite inner edges of the elongate slot.

20. The infant carrier according to claim 15 , wherein the locking mechanism further includes a spring connected with the actuating part, the spring biasing the actuating part to move in a direction for urging the latch to engage with the side segment.