# US 10,308,481 B2 · Elevator door and method for opening an elevator door having two sliding door panels

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- Number: US 10,308,481 B2
- Document ID: US10308481B2
- Status: Granted
- Kind: B2
- Application number: 15/554,997
- Filed: 2015-09-25
- Published: 2018-04-19
- Granted: 2019-06-04
- Earliest claimed: 2015-03-19
- Assignees: Wittur Holding GmbH
- Applicants: WITTUR Holding GmbH
- Inventors: Paolo Giorgioni
- Web page: https://patentgrep.com/patent/US10308481B2

## CPC

- B66B 13/301: {Details of door sills}
- B66B 13/26: between closing doors
- B66B: ELEVATORS; ESCALATORS OR MOVING WALKWAYS ({apparatus for raising or lowering persons on theatrical stages or the like A63J5/12} ; funicular railbound systems with rigid ground-supported tracks and cable traction, e.g. cliff railways, B61B9/00; arrangements of ammunition handlers in vessels B63G3/00; hoists, lifts, or conveyors for loading or unloading in general B65G; braking or detent devices controlling normal movements of winding drums or barrels B66D; ship-lifting devices E02C; garages for many vehicles with mechanical means for lifting vehicles E04H6/12; hoists for feeding ammunition or projectiles to launching apparatus or to loading mechanisms F41A9/00)

## Abstract

Car door (1) comprising: two sliding door panels (2, 3); two profiles (6, 7), each of which is arranged below one of the two door panels (2, 3), the profiles (6, 7) being partially counter-shaped so as to slide with respect to one another therefore while the door (1) is opening they move towards one another to compose a sill (5).

## Claims

### Claim 1

Car door for an elevator comprising:
at least two sliding door panels;
means for moving said door panels between a first configuration wherein the door is closed and a second configuration wherein the door is open and vice versa;
a car sill that can be horizontally aligned with a floor sill,
characterised in that it comprises:
a profile for each door panel, said profile being arranged below the corresponding door panel and having an elongated extension with a first portion integrally constrained to said door panel and a second portion projecting towards said floor sill, the second portion of one of the profiles having a groove in which the first portion of the other profile is slidably inserted, so that when passing from the first to the second configuration said second projecting portions move towards one another in order to compose said car sill which projects towards the floor sill, and when passing from the second to the first configuration said second projecting portions move away from one another in order to disassemble said car sill, each door panel dragging through its motion the corresponding profile integral to it.

### Claim 2 (depends on 1)

Elevator door according to claim 1, wherein there are two door panels and the opening is central.

### Claim 3 (depends on 1)

Elevator door according to claim 1, wherein the second projecting portion of one of the profiles has a groove in which the first portion of the other profile is slidably inserted.

### Claim 4 (depends on 1)

Elevator door according to claim 1, wherein said door panels are constrained to the first portions of the corresponding profiles through screws or rivets.

### Claim 5 (depends on 1)

Elevator door according to claim 1, wherein said door panel are welded to the first portions of the corresponding profiles.