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US-20260124771-A1 - ROBOT

US20260124771A1US 20260124771 A1US20260124771 A1US 20260124771A1US-20260124771-A1

Abstract

A robot according to the present embodiment comprises: a body including an accommodation body in which an accommodation space is formed; a door connected to the body by means of a hinge, and rotated around the first hinge so as to open/close the accommodation space; a driving source provided in the body; a power transmission member for transmitting the rotation power of the driving force between the driving source and the door; and a spring, which has one side connected to the body and has the other side connected to the door so as to compensate for the gravity of the door.

Inventors

  • Youngeun Kim
  • Jaecheon Sa

Assignees

  • LG ELECTRONICS INC.

Dates

Publication Date
20260507
Application Date
20211122
Priority Date
20211117

Claims (11)

  1. 1 . A robot comprising: a body comprising a storage body with a storage space formed therein; a door connected to the body with a first hinge and configured to rotate about the first hinge to open and close the storage space; a driving source installed on the body; a power transmission member configured to transmit a rotational force of the driving source between the driving source and the door; and a spring having a side connected to the body and the other side connected to the door to compensate for a gravity of the door.
  2. 2 . The robot of claim 1 , wherein the body is disposed outside the storage body and comprises a driving source bracket on which the driving source is mounted.
  3. 3 . The robot of claim 1 , wherein the power transmission member comprises: a lever connected to a rotation shaft of the driving source; and a driving link connected to the door with a second hinge, connected to the lever with a third hinge, and disposed outside the storage body.
  4. 4 . The robot of claim 3 , wherein a length of the spring is shorter than a length of the driving link.
  5. 5 . The robot of claim 3 , wherein a pair of springs are provided, and wherein the driving link is disposed between the pair of springs.
  6. 6 . The robot of claim 3 , wherein the door comprises one end portion spaced apart from the first hinge by a first distance, and the other end portion spaced apart from the first hinge by a second distance greater than the first distance, and wherein the driving source is closer to the one end portion of the one end portion and the other end portion.
  7. 7 . The robot of claim 6 , wherein the door comprises: a driving link connection portion where the driving link is rotatably connected to a second hinge, and an upper connection portion to which an upper portion of the spring is connected and spaced apart from the driving link connection portion.
  8. 8 . The robot of claim 1 , wherein the body comprise a lower connection portion to which a lower portion of the spring is connected.
  9. 9 . The robot of claim 8 , wherein a height of a lower connection portion is higher than a height of the driving source.
  10. 10 . The robot of claim 3 , wherein the door comprises: a door body; a driving link bracket installed on the door body and to which the driving link is connected, and a spring bracket installed on the door body to be spaced apart from the driving link bracket and to which the spring is connected.
  11. 11 . The robot of claim 1 , wherein the spring is tensioned to a maximum when the door is closed and is tensioned to a minimum when the door is opened.

Description

TECHNICAL FIELD The present disclosure relates to a robot. BACKGROUND ART A robot is a machine that automatically processes or operates a given task by own capabilities thereof, and the application fields of robots can be generally classified into industrial, medical, space, subsea use, and the like and can be used in various fields. Among robots, a delivery robot may comprise a storage body with a storage space formed inside, and a door that opens and closes the storage space, and the user can rotate the door upward to open the storage space, place items in the storage space, or take out items stored in the storage space. DISCLOSURE Technical Problem An object of this embodiment is to provide a robot that can minimize the load on the driving source for opening the door. Technical Solution A robot according to the present embodiment comprises a body comprising a storage body with a storage space formed therein; a door connected to the body with a first hinge and configured to rotate about the first hinge to open and close the storage space; a driving source installed on the body; a power transmission member configured to transmit the rotational force of the driving source between the driving source and the door; and a spring having a side connected to the body and the other side connected to the door to compensate for the gravity of the door. The body may be disposed outside the storage body and comprise a driving source bracket on which the driving source is mounted. The power transmission member may comprise a lever connected to the rotation shaft of the driving source; and a driving link connected to the door with a second hinge, connected to the lever with a third hinge, and disposed outside the storage body. The length of the spring may be shorter than the length of the driving link. A pair of springs may be provided, and the driving link may be disposed between a pair of springs. The door may comprise one end portion spaced apart from the first hinge by a first distance, and the other end portion spaced apart from the first hinge by a second distance greater than the first distance. The driving source may be closer to the one end portion of the one end portion and the other end portion. The door may comprise a driving link connection portion where the driving link is rotatably connected to a second hinge, and an upper connection portion to which the upper portion of the spring is connected and spaced apart from the driving link connection portion. The body may comprise a lower connection portion to which the lower portion of the spring is connected. A height of a lower connection portion may be higher than a height of the driving source. The door may comprise a door body; a driving link bracket installed on the door body and to which the driving link is connected, and a spring bracket installed on the door body to be spaced apart from the driving link bracket and to which the spring is connected. The spring may be tensioned to the maximum when the door is closed and may be tensioned to the minimum when the door is opened. Advantageous Effect According to an embodiment of the present disclosure, the spring compensates for the gravity of the door, thereby minimizing the driving force of the driving source and power consumption. In addition, the driving source, power transmission member, and spring do not encroach on the storage space, so the storage space can be maximized. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 illustrates an artificial intelligence (AI) device comprising a robot according to an embodiment of the present disclosure. FIG. 2 illustrates an AI server connected to a robot according to an embodiment of the present disclosure. FIG. 3 illustrates an AI system according to an embodiment of the present disclosure. FIG. 4 is a perspective view illustrating a robot according to the present embodiment. FIG. 5 is a side view illustrating the storage body and door of the robot according to the present embodiment. FIG. 6 is a perspective view illustrating a state where the door according to the present embodiment is closed. FIG. 7 is a perspective view illustrating a state where the door according to the present embodiment is partially open. FIG. 8 is a perspective view illustrating a state where the door according to the present embodiment is fully open. FIG. 9 is a diagram illustrating a process in which a door according to the present embodiment is rotated from a state of being closed to a state of being fully open. FIG. 10 is a conceptual diagram illustrating a driving source, a power transmission member, and a door when the door according to the present embodiment is closed. FIG. 11 is a conceptual diagram illustrating a spring and a door when the door according to the present embodiment is closed. FIG. 12 is a conceptual diagram illustrating a driving source, a power transmission member, and a door when the door according to the present embodiment is open. FIG. 13 is a conceptual diagram illustrat