Floor pit covering system
AssigneeAssa Abloy Entrance Systems AB
InventorMats Brannstrom
Life of this patent
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Abstract
The present invention relates to a floor pit covering system comprising a cover plate (1) and a pivoting system (2). The pivoting system (2) is adapted for arranging the cover plate (1) in a first end position (P1) or in a second end position (P2) in response to an internal force (FI), or an internal force (FI) and an external force (FE), being applied onto the cover plate (1). The cover plate (1) is arranged in the first end position (P1) when force FE≤FI and in the second end position (P2) when force FE>FI. The present invention further relates to a method of operating such a system.
Claims10
A floor pit covering system arranged to interconnect with a pivotable mullion of a vertical lifting door when the pivotable mullion is positioned vertically, the floor pit covering system comprising:
- an axially moving locking mechanism on an end of the mullion, wherein the locking mechanism is movable upward and downward when the mullion is positioned vertically and wherein the locking mechanism generates an external force when the locking mechanism is moved downward;
- a cover plate and a pivoting system, said pivoting system being adapted for arranging said cover plate in a first end position or in a second end position in response to an internal force, or the external force being applied onto said cover plate by the axially moving locking mechanism of the pivotable mullion;
- said pivoting system configured to position said cover plate in said first end position when the external force is less than or equal to the internal force and in said second end position when the external force exceeds the internal force,
- wherein said first end position is a horizontal position and said second end position is a vertical position, and
- wherein said pivoting system comprises an articulated joint system and at least one spring.
Dependencies are inferred from the claim text.