DE2424412A1 - Cargo ship hatch cover - has individual segments linked by parallel levers to give rolling motion - Google Patents

Abstract

Each hatch cover consists of individual segments, hinged scissor-like to form a chain, via levers, connected to the sides. When the last scissor lever pair is raised, all segments are raised simultaneously, and, by turning about the axis of their running rollers, are erected in a louvre fashion, and rolled together as a segment parcel, by engaging on each other. Two jacks positioned at the end of the storage space for the rolled-up cover, are each connected to a trunnion of a movement transmission. The jacks are also connected hinged to the free ends of the scissor levers of the last segments, to allow it to be raised.

Description

Title: Scissor mechanism for roll-up hatch roofs.

The invention relates to 1.) the connection of the individual segments a hatch roof divided into movable segments and 2.) the movement device to open and close the hatch with the help of a mechanical drive.

Application area The invention is particularly useful for large areas Hatches of the Rhine cargo ships thought, with which only little space for the stowage the roof parts are available.

State of the art Rhine cargo ships still have hatch covers genes, which consist of hang-in longitudinal beams and shell hatch covers with laid underneath There are water collecting channels (Merklimgen). The hatch covers and the Merklinge must can be removed individually by hand and placed in the stowage area are pushed to the side and folded out of the hatch opening. To uncover The hatch, as well as to cover it, requires two people, and the size the hatches, this manual work always takes a lot of time.

EritiX of the state of the art The competitive conditions in the Rhine navigation made these hatch covers more and more a problem due to the lack of staff, what Occasionally it has already led to the use of roll-up hatch roofs of various designs Has. However, these constructions were not fully satisfactory and therefore also none gained wider distribution. Invention: scissor mechanism for roll-up hatch roofs.

In many cases, the hatch roofs consisting of loose parts are not at all The individual parts simply remain in the stowage area due to lack of time lie and are often given ashore so that they no longer wait on board to have to.

Freight ships without hatch covers are only for transport suitable for goods insensitive to the weather and therefore only usable to a limited extent the hold suffers from constant weather conditions.

Task: The invention is based on the task of a hatch roof to create, which by machine drive in a short time by only 1 person without Muscle effort open, resp. can be closed.

Solution: This object is achieved according to the invention in the following way 1.) A hatch roof made of several narrow and sourly arranged lengthways Segments which are self-supporting on the hatch coaming and which are connected to the neighboring ones The edges are weatherproof and are equipped with rods on both long sides, which the individual segments are articulated to one another via axle journals at their end faces and connects like a pair of scissors to form a chain.

Each segment carries on both sides in the direction of the drive an extending roller holder with a stub axle on each of its lower edge for holding a scissor rod end bearing and a roller, opposite to the rollersE, old at its upper edge an axle journal for the reception of a other scissor rod end bearing, and in the middle between the Invention: Scissor mechanism for roll-up hatch roofs.

a third axle journal for the recording of the central scissor bar warehouse, the axle journals are located when the hatch roof is closed the roller holder of one segment perpendicular under the upper journal of the Neighboring segment.

The horizontal distance of the lower and upper journal on the same Segment corresponds to the width of the segments.

Each segment has a straight scissor bar on both ends, the moves freely around the central journal and with one end bearing at the top Axle journal of one neighboring segment and with the other end bearing on the journal engages the roller holder of the other neighboring segment.

After assembly of all scissor rods and rollers with the closed The hatch roof has one end of the scissor rods on the drive side of the last one Segment free over.

If these two scissor rod ends are raised evenly and raise the roller axles underneath at the same time in a suitable manner The tracks are hindered (e.g. by a second roller with a safety rail, or something else), then the individual segments stand together, rotating around their roller axis, like a blind and roll on the common roller conveyor in the direction of the drive to the segment package together.

Another 2.) The lifting of the last two scissor bar design of the invention: ending is effected by a pair of erectors.

The erectors are lever arms the length of the scissor bars, grabbing articulated to the free ends of the last pair of scissor rods Invention: Scissor mechanism for roll-up hatch roofs.

and swing around the axis of the PTO shafts of two gears that are behind the hatch are arranged.

The gears effect the masculine drive of the AuLrichterQ Even lifting of the lifting device rolls the segment package out of the roller conveyor Hatch area up to the stop on the lifting pole.

The length of the lifting pole determines the stowage space for the segment package.

The reverse of the process causes the hatch to close.

By extending the last scissor bars and accordingly The stowage space for the segment package outside the hatch area can be made longer enlarge as needed.

The latter is also achieved by switching on two pairs of full scissor rods (an Point of another segment) achieved to a particularly large extent.

Achievable Advantages: The advantages that can be achieved with the invention exist in that the hatch roof is opened and closed with the help of a mechanical drive it can be that this construction is feasible for any large hatch and that this construction leaves the entire hatch area free for loading gives.

The Scherenmecnanik has the further advantage that it only needs a little various individual parts can be assembled and with interchangeable Rolling bearings is practically maintenance-free.

Customary hatch roof closure is possible without any special features.

Invention: Scissor mechanism for roll-up hatch roofs.

Description of an exemplary embodiment: An exemplary embodiment is shown schematically in the drawing and is described in more detail below: Bs show Fig.1 Side view and floor plan of the closed hatch roof (partially) Fig. Side view of the open hatch roof.

Fig.3 Side view of the fully opened hatch roof.

Fig.4 Details of the scissor mechanism.

In the drawing 1 = hatch roof segment 2 = scissor bar 3 = extended scissor bar 4 = half scissor bar 5 = roller 6 = drive 7 = erector

Claims (1)

Invention: Scherenmec @ anik for roll-up hatch roofs. Claims: Main claim: 1.) Scissor mechanism for roll-up hatch roofs, in particular for the cargo items of Rhine freight ships, characterized in that the individual parts of the hatch roof (segments) by means of rods attached to the side are articulated and scissor-like connected to one another to form a chain, in such a way that that when the last pair of scissor rods is lifted, all segments move at the same time Lift up and, rotating around its roller axis, stand up like a blind to the segment package roll them up and place them against each other (Fig. 1, 2 and 3). Dependent claim: 2.) Two erectors to claim 1, characterized in that This onecits ara end of the stowage block for the segment package time for each PTO shaft a motion gear are firmly connected and on the other hand at the free ends attack the scissor bars of the last segment in an articulated manner in order to lift them and pull the segment package out of the hatch area (Fig.1,2 and 3)