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Hatch and fence solution for a wind turbine nacelle

IP.com Disclosure Number: IPCOM000248179D
Publication Date: 2016-Nov-04
Document File: 2 page(s) / 314K

Publishing Venue

The IP.com Prior Art Database

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Hatch and fence solution for a wind turbine nacelle

Fig. 1 shows a platform 1 arranged to be mounted inside a nacelle of a wind turbine. The platform is adapted to support staff working in the nacelle. In the platform 1 a rectangular opening 2 is formed, which may be used for reaching below the platform with a crane. A hatch comprising two foldable parts 31, 32 is arranged to cover the opening 2.

As understood by fig. 2, the hatch parts 31, 32 are connected with hinges to opposite edges 21, 22 of the opening. When opened, a hinged folding line 33 of the respective hatch part 31, 32 moves upwards, and inner and outer hatch part portions 311, 312, 321, 322 move to vertical positions at the respective opening edge 21, 22.

As can be seen in fig. 2, for staff security a fence, with a fixed middle portion 4 and two side portions 41, 42, is arranged to partly surround the opening when the hatch 31, 32 is open. In the open position, each hatch part 31, 32 is secured to a respective of the fence side portions 41, 42 by means of a respective cable 51, 52 with a hook.

As can be seen in fig. 1, when the hatch 31, 32 is closed, the fence side portions 41, 42 may swing by being connected to the fence middle portion 4 by respective hinge connections 43, so as to extend over the closed hatch 31, 32. Thereby, the fence side portions 41, 42 serve to prevent the opening of the hatch 31, 32.

Thus, the solution presented here secures that the opening 2 is not exposed unless the fence side portio...