RU2386557C1 - Hatch cover attachment to ceiling - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to transport machine building. Proposed attachment comprises clamp 3 attached to cover 1, bracket 4 arranged on ceiling 2 and pivot pin 5 to secure cover to ceiling. Pivot pin and clamp arte arranged on opposite sides of the cover. Attachment is furnished with folding rod 9 consisting of pivoted double link with its upper link 10 hinged to the bracket and furnished with first return spring 11, and its lower link 12 furnished with second return spring 13. Locking element 14 is arranged on second link free end. Upper link is furnished with the device designed to effect angular adjustment of locking element 14. One of flanges 16 of the clamp has inclined bent end 17 to interact with locking element.

EFFECT: higher safety.

3 cl, 5 dwg

Description

The claimed technical solution relates to transport engineering, in particular to the attachment points of the manhole covers to the ceiling of a passenger car.

Known utility model "Ceiling of a passenger car" (RF patent No. 51578, B61D 17/18, application. September 26, 2005, publ. February 27, 2006) containing a support frame, gripping elements, a composite panel in the form of side and central parts mounted on a support frame with the possibility of rotation, and fasteners. The central part of the panel is connected to the support frame by a safety belt.

The disadvantage of this design is that the human factor affects the installation of the safety belt and, as a consequence, the safety during operation, since after each opening of the manhole cover, the safety belt is fastened manually.

The closest technical solution (adopted as a prototype) is “The unit for attaching the manhole cover to the ceiling” (ed. Certificate of the USSR No. 1759698, B61D 17/16, declared. 07.23.1990, published. 07.09.1992, Bull No. 33), containing a bracket attached to the cover, a bracket mounted on the ceiling, the hinge axis for attaching the manhole cover to the ceiling.

The known design does not exclude the spontaneous lowering of the manhole cover from an intermediate, cantilever position due to forces arising from the movement of the vehicle, for example, vibrations during movement, shocks and shocks during the coupling of wagons.

The objective of the proposal is to increase safety during operation of the sunroof.

For this, the hatch for attaching the manhole cover to the ceiling contains a bracket attached to the cover, a bracket mounted on the ceiling, the hinge axis for attaching the cover to the ceiling. What is new is that the hinge axis and the bracket are located on opposite sides of the lid, and the assembly is provided with a folding rod consisting of an articulated double link, the upper link of which is pivotally mounted on the bracket and provided with a first return spring, and the lower link is equipped with a second return spring and on its free a locking element is installed at the end, the upper link is provided with an angular adjustment device for the said locking element, and one of the shelves of the bracket is made with an inclined bent end with the possibility of interaction Via with the locking element.

In addition, the device for angular adjustment of the locking element is made in the form of a shelf rigidly fixed on the upper link with a bent end, resting on the ceiling overlap under the action of the first return spring, and an adjustment screw placed on the shelf, to which the lower link is elastically preloaded, and the hinge axis connects two strips, one of which is made in the form of a corner profile and is attached to the ceiling, and the other is fixed on board the hatch.

The technical result is expressed in the following.

The location of the axis of the hinge and the bracket on opposite sides of the cover allows you to increase the locking shoulder of the cover from the axis of the hinge to the point of engagement of the locking element with the bent end of the shelf of the bracket, which increases the reliability of holding the cover in an intermediate position.

The presence of a folding rod consisting of an articulated double link, the upper link of which is pivotally mounted on the bracket and provided with a first return spring, and the lower link is provided with a second return spring, installation of a locking element on its free end, as well as the implementation of one of the shelves of the bracket with an inclined bent end with the possibility of interaction with the locking element allows you to sequentially open the manhole cover through an intermediate position and eliminates spontaneous disengagement of the locking element with an inclined ognutym shelf end brackets, which enhances the safety of passengers and staff and improves the service hatch.

The presence on the top link of the angular adjustment device allows you to fix the position of the locking element, ensuring its adhesion to the inclined bent end of the bracket, which increases safety during operation of the manhole cover.

The accompanying drawings depict:

figure 1 - the attachment of the hatch to the ceiling when the lid is closed;

figure 2 is an intermediate position of the hatch;

figure 3 is a section aa in figure 2;

figure 4 - open position of the hatch;

figure 5 - interaction of the locking element with the bent end of the shelf of the bracket when moving the cover from the open position to the closed.

The mounting unit of the hatch cover 1 to the ceiling 2 (Fig. 1) contains a bracket 3 attached to the cover 1, mounted on the ceiling 2 bracket 4, the hinge axis 5 for attaching the cover 1 to the ceiling 2. The hinge axis 5 and the bracket 3 are located on opposite sides of the cover 1. The axis of the hinge 5 connects two slats 6, 7. The lath 6 is made in the form of a corner profile and is attached to the ceiling 2, and the other 7 is fixed on board 8 of the cover 1. The assembly is equipped with a folding rod 9, consisting of a hinged double link . The upper link 10 of the two link is pivotally mounted on the bracket 4 and provided with a first return spring 11, and the lower link 12 is provided with a second return spring 13. At the free end of the lower link 12, a locking element 14 is made, made in the form of an axis (Fig. 3). The upper link 10 is equipped with an angular adjustment device 15 of the locking element 14. One of the shelves 16 of the bracket 3 is made with an inclined end 17 with the possibility of interaction with the locking element 14. The angular adjustment device 15 is made in the form of a shelf 18 with a bent end rigidly fixed to the upper link 10 19, based on the ceiling 2 under the action of the first return spring 11, and placed on the shelf 18 by the adjusting screw 20, to which the lower link 12 is elastically pressed.

The node operates as follows.

In the closed position (figure 1), the manhole cover 1 is held by the locks 21, while the rod 9 is in the folded position. The locking element 14 is located under the obliquely bent end 17 of the shelf 16 of the bracket 3.

When you open the locks 21, the cover 1 rotates relative to the axis 5 of the hinge, while the locking element 14 engages with the obliquely bent end 17 of the shelf 16 of the bracket 3. Under the influence of the weight of the cover 1, links 10, 12 of the link 9 are expanded and hold the cover 1 of the hatch in an intermediate position (figure 2), excluding its further unauthorized opening. To translate the cover 1 into the open position, it is necessary by depressing the free end of the lower link 12 to disengage the locking element 14 from the engagement with the obliquely bent end 17. After that, the manhole cover 1 lowers down and occupies the open position (Fig. 4), and the links 10, 12 thrust 9 under the action of the springs 11 and 13 are folded.

When moving the hatch cover 1 (Fig. 5) from the open position to the closed locking element 14 of the folding rod 9 slides along the inclined bent end 17, elastically compressing the spring 13, until it comes off its edge, and with further movement of the cover 1 under the action of the spring 13 goes into the position under the obliquely bent end 17 of the shelf 16 of the bracket 3, and the rod 9 is in this case the original folded position (figure 1). The closed position of the cover 1 is fixed by locks 21.

Claims (3)

1. The node for attaching the hatch to the ceiling, containing a bracket attached to the cover, a bracket mounted on the ceiling, an axis of the hinge for attaching the cover to the ceiling, characterized in that the hinge axis and the bracket are located on opposite sides of the cover, and the assembly is provided with a folding rod consisting of an articulated two-link, the upper link of which is pivotally mounted on the bracket and provided with a first return spring, and the lower link is equipped with a second return spring and at its free end the locking element is updated, the upper link is provided with an angular adjustment device for the said locking element, and one of the shelves of the bracket is made with an obliquely bent end to interact with the locking element. 2. The assembly according to claim 1, characterized in that the angular adjustment device of the locking element is made in the form of a shelf rigidly fixed to the upper link with a bent end, resting on the ceiling overlap under the action of the first return spring, and an adjustment screw placed on the shelf, to which it is elastic the lower link is tightened. 3. The node according to claim 1, characterized in that the hinge axis connects two slats, one of which is made in the form of a corner profile and is attached to the ceiling, and the other is fixed on board the hatch.

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