# US 5,701,704 A · Dock device, particularly for maintaining and overhauling aircraft

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- Number: US 5,701,704 A
- Document ID: US5701704A
- Status: Granted
- Kind: A
- Application number: 08/465,984
- Filed: 1995-06-06
- Granted: 1997-12-30
- Earliest claimed: 1994-06-13
- Assignees: Mero-Raustuktur GmbH & Co.
- Inventors: Albert Landes
- Web page: https://patentgrep.com/patent/US5701704A

## CPC

- B66F 11/04: for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations ({Working platforms on fork-lift trucks B66F9/127; } vehicle aspects of service vehicles B60P3/14; platforms for cleaning windows A47L3/02; devices for rescuing persons from buildings A62B1/02; liftable or lowerable platforms for use on ladders E06C7/16; maintenance travellers for bridges E01D19/10; scaffolds on an extensible sub-structure E04G1/22)
- B64F 5/60: Testing or inspecting aircraft components or systems
- B66F: HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD ({invalid lifting devices A61G7/10; } mounting artificial islands on piles or like supports E02B17/00; scaffolding combined with lifting devices E04G1/22; lifting devices for sliding forms E04G11/24; lifting of buildings E04G23/06; shores or struts E04G25/00; lifts or other hoisting devices on ladders E06C7/12; props for mining E21D15/00)
- B64F: GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR

## Abstract

Dock device (10), particularly for maintaining and overhauling commercial aircraft, having at least two lateral dock parts (28, 29) which are each connected by a suspension device (24, 25) to a supporting framework (23) so as to form a portal which is disposed on a supporting structure so as to be displaceable in the direction of the longitudinal axis of the aircraft, the lateral dock parts each having a movable bridge part (32, 33) such that, when the bridge parts are moved apart from one another, an area of passage (50) is cleared between the lateral dock parts and, when the bridge parts are moved towards one another, a bridge deck is created between the lateral dock parts.

## Claims

### Claim 1

Dock device for maintaining and overhauling a commercial aircraft having a longitudinal axis, said dock device comprising at least two lateral dock parts spaced from one another to form an area of passage for an aircraft, each lateral dock part being connected by a suspension device to a supporting framework installed above the area of passage so as to form a supporting portal structure which, is positioned in the area of passage, is displaceable in the direction of the longitudinal axis of the aircraft, the lateral dock parts each having a moveable bridge part such that, when the bridge parts are moved apart from one another, the area of passage is cleared between the lateral dock parts and, when the bridge parts are moved toward one another, a bridge deck is created between the lateral dock parts.

### Claim 2 (depends on 1)

Dock device according to claim 1, further comprising at least one lifting device for vertically displacing the lateral dock parts relative to the suspension devices.

### Claim 3 (depends on 1, 2)

Dock device according to claim 1 or 2, further comprising at least one transverse displacement device for transversely displacing the lateral dock parts relative to the suspension devices.

### Claim 4 (depends on 3)

Dock device according to claim 3, wherein the lateral dock parts have at least one projecting sliding platform.

### Claim 5 (depends on 4)

Dock device according to claim 4, further comprising a base platform of the lateral dock parts connected and displaceable relative to the sliding platform.

### Claim 6 (depends on 5)

Dock device according to claim 5 further comprising a lifting device associated with each lateral dock part.

### Claim 7 (depends on 6)

Dock device according to claim 6, wherein the bridge parts are hinged upwards.

### Claim 8 (depends on 6)

Dock device according to claim 6, wherein the lifting device comprises a davit.