Tray and robot having same
A tray according to an embodiment of the present invention may include: a housing having a lower plate and a perimeter wall provided on the lower plate and having a space formed inside the perimeter wall; a stabler comprising a moving body movably accommodated in the space; and a plurality of dampers disposed between an edge of the moving body and the perimeter wall.
1 . A tray comprising:
a housing having a lower plate and a perimeter wall on the lower plate, and having a space in the perimeter wall;
a support portion comprising a movable body that is movable while accommodated in the space and a top tray disposed on the movable body to cover the space of the housing;
a plurality of dampers disposed along the perimeter wall to contact an edge of the movable body during movement of the movable body; and
an inner cover disposed on the housing and covering at least part of the movable body,
wherein the inner cover comprises:
an opening for coupling between the movable body and the top tray; and
a hollow rib protruding upward from a circumference of the opening.
2 . The tray of claim 1 , wherein the inner cover covers a space between the edge of the movable body and the perimeter wall.
3 . The tray of claim 1 , wherein the movable body comprises:
a lower body on which the edge is located; and
a protruding body protruding from an upper surface of the lower body through the opening of the inner cover and connected to the top tray.
4 . The tray of claim 1 , wherein the support portion comprises:
a movable housing comprising an inner plate disposed on the movable body to cover the space, and an upper perimeter wall on the inner plate, wherein an upper space is in the upper perimeter wall; and
an upper support portion comprising an upper movable body that is movable while accommodated in the upper space; and
a plurality of upper dampers disposed along the upper perimeter wall to contact an edge of the upper movable body during movement of the upper movable body.
5 . The tray of claim 4 , wherein the upper support portion comprises a top tray disposed on the movable housing to cover the upper space.
6 . The tray of claim 1 , wherein each of the plurality of dampers comprises an elastic member, a cross-section of which has a closed loop shape.
7 . The tray of claim 1 , wherein each of the plurality of dampers comprises a plate spring having a movable body contact portion that comes into contact with the edge of the movable body during the movement of the movable body, and a perimeter wall contact portion contacting an inner surface of the perimeter wall.
8 . The tray of claim 1 , further comprising a rollable member in the lower plate, on which the movable body is seated.
9 . The tray of claim 1 , further comprising a lower spring disposed on the lower plate and fastened to the movable body.
10 . The tray of claim 9 , wherein the lower spring comprises a spiral spring disposed between the lower plate and a lower surface of the movable body, and connected to the movable body.
11 . The tray of claim 10 , wherein an outer circumference of the spiral spring is fitted to the lower plate, and
wherein the spiral spring comprises:
a central portion spaced apart from the outer circumference and having a hole through which a fastening member fastened to the movable body passes; and
a bridge connecting the outer circumference and the central portion, and having a spiral shape.
12 . The tray of claim 11 , wherein the lower plate has an opening through which the fastening member passes at a lower side of the lower spring.
13 . The tray of claim 1 , further comprising a lock coupled to the housing to lock the movable body.
14 . A mobile robot comprising:
a driving wheel;
a frame disposed on the mobile robot; and
a tray disposed on the frame,
wherein the tray comprises:
a housing having a lower plate and a perimeter wall on the lower plate, and having a space in the perimeter wall;
a support portion comprising a movable body that is movable while accommodated in the space and a top tray disposed on the movable body to cover the space of the housing;
a plurality of dampers disposed along the perimeter wall to contact an edge of the movable body during movement of the movable body; and
an inner cover disposed on the housing and covering at least part of the movable body,
wherein the inner cover comprises:
an opening for coupling between the movable body and the top tray; and
a hollow rib protruding upward from a circumference of the opening.
15 . The mobile robot of claim 14 , wherein the frame comprises a shelf, and
wherein the housing is seated on the shelf or coupled to the shelf.
16 . The mobile robot of claim 14 , wherein the housing is coupled to the frame.
17 . The mobile robot of claim 14 , wherein the inner cover covers a space between the edge of the movable body and the perimeter wall.
18 . A tray comprising:
a housing having a lower plate, and a perimeter wall on the lower plate, and having a space in the perimeter wall;
a support portion comprising a movable body that is movable while accommodated in the space and a top tray disposed on the movable body to cover the space of the housing;
a plurality of dampers disposed along the perimeter wall to contact an edge of the movable body during movement of the movable body; and
a lower spring disposed on the lower plate and fastened to the movable body,
wherein the lower spring comprises a spiral spring disposed between the lower plate and a lower surface of the movable body, and connected to the movable body, and
wherein the spiral spring comprises:
an outer circumference portion that is fitted to the lower plate;
a central portion spaced apart from the outer circumference portion and having a hole through which a fastening member fastened to the movable body passes; and
a bridge connecting the outer circumference portion and the central portion, and having a spiral shape.