Patent ID: 11939157
Assignee: OCADO INNOVATION LIMITED
Field: Handling (Mechanical engineering)
Classification: CPC B  G | IPC B

Claim 17:
18. The grid frame of claim 17, wherein:
the third X-direction lip is configured to engage the second pair of wheels to guide movement of the second pair of wheels in the X-direction along a first part of the second X-direction rail, the third X-direction lip providing a third space at one end of the third X-direction lip for the fourth pair of wheels to roll in the Y-direction through the third space past the third X-direction lip,
the fourth X-direction lip is configured to engage a pair of wheels of a fourth load handling device to guide movement of the pair of wheels of the fourth load handling device in the X-direction along a second part of the second X-direction rail different from the first part of the second X-direction rail with the third X-direction lip engaging the second pair of wheels,
the third Y-direction lip is configured to engage the fourth pair of wheels to guide movement of the fourth pair of wheels in the Y-direction along a first part of the second Y-direction rail, the third Y-direction lip providing a fourth space at one end of the third Y-direction lip for the second pair of wheels to roll in the X-direction through the fourth space past the third Y-direction lip, and
the fourth Y-direction lip is configured to engage a pair of wheels of a fifth load handling device to guide movement of the pair of the fifth load handling device in the Y-direction along a second part of the second Y-direction rail different from the first part of the second Y-direction rail with the third Y-direction lip engaging the fourth pair of wheels.