SU543543A1 - Hatch cover closing device - Google Patents

Description

one

FIELD OF THE INVENTION The invention relates to shipbuilding, in particular, to hatch cover locking devices.

A known hatch cover fixing device, comprising a support for a hole with a hole, fixed on the cover of the door, an eyelet with a groove mounted on the coaming roof of the door, and a bolt with a head passing through the hole in the bearing bracket and engaging with the eyelet with the aid of the head of the invention, the Invention II target is to improve the mounting conditions by reducing manual winding and retaining bolt operations.

For this, the head of the bolt is T-shaped and the eye is double, with the grooves in the eyelets offset relative to each other by a distance corresponding to the difference in the length of the groove and the transverse 20 size of the T-shaped bolt head, while the surface of the eyelet in contact with the surface of a T-shaped bolt head, corresponds to the latter in form .25

In order to prevent damage to the bolt and the lugs in the distracted position, the support bracket is made with do-it-yourself fixtures, and the upper edges of the lugs are contoured.

FIG. 1 shows the locking device in the working position (cross section along the side vertical wall of the lid), as well as the relative position of the parts, installer: -leins on the coaming and the lid; in fig. 2 shows section A-A in FIG. 1, in FIG. 3 - section A-A in the torn position, a bolt with a nut fixed in the accessories installed in the brace.

The device consists of a bolt 1 with a T-shaped head, a nut 2, a support bracket 3 mounted on the lid 4 and having a hole for the passage of the bolt, two lugs 5 with cutouts mounted on the coaming hatch 6, and also fittings 7 for fastening the bolt 1 s nut 2 in the distracted position. The device works as follows. When the nut 2 is rotated, the bolt 1 is lowered by the amount of the notch on the bottom surface, the gap 5, and then under the action of the friction forces in the pair of nut-screw turns.

I

rests against the walls of the lugs 5. After that, it is lifted and installed in the accessories of the bracket 3.

The device is torn - cover 4 close the hatch is ready to lift.

Drafting occurs as follows.

The bolt 1 is removed from the fittings 7, turned and lowered into the groove between the lugs 5. As the nut 2 is rotated due to the frictional forces, the bolt is rotated and, resting against the walls of the lugs 5, rises to the ground position.

If the bolt 1 accidentally drops out of the fittings 7 in the bracket 3, when the cover 4 is closed, the hatch falls on the oppositely chamfered surfaces of the lugs 5, turns and slips into the groove. Further drafting occurs in the order described above.

Claims (2)

1. A lid closing device including a support bracket with a hole fixed on the hatch cover, an eyelet with a groove mounted on the coaming hatch, as well as a bolt with a head passing through a hole in the support bracket and engaging the eye with a head, characterized in that in order to improve the mounting conditions by reducing manual winding and retaining operations of the bolt, the head of the bolt is made T-shaped, and the eyelet is made double, and the grooves in the eyes are offset relative to each other by a distance corresponding to the difference in the length of the groove and the transverse size of the T-shaped head of the bolt, while the surface eyelets in contact with the surface of the T-shaped bolt head corresponds to the latter in shape, 2. The device according to claim 1, characterized in that, in order to avoid damage to the bolt and the gaps in the distracted position, the support bracket is made with tricks and the upper edges of the lugs are oppositely chamfered. Sources of information taken into account in the examination. 1. US patent No. 265681О, class 1142О1, 10.27.53 (prototype). .f $$$$$$$ S $ S $ t $$$$$$$$$$$$$$$$$$$$ .$ K - l S Fig-3