DE3516720A1 - Closure device for container apertures, in particular for the dome on rail-bound tank and bulk freight wagons - Google Patents

Abstract

The invention relates to a closure device for container apertures, in particular for the dome on rail-bound tank and bulk freight wagons. The essence of the invention consists in that the closure device locks the lid by means of lever closures with a defined pressing-on path for the seal. The actuating levers allow simple and rapid operation, are secured in the closed position by an over dead centre position and can also be used for raising the lid in the case of a sticking seal. The closed position can be checked visually from the ground.

Description

Closure device for container openings, in particular for the cathedral on rail-bound tank and bulk goods wagons

The invention relates to a closure device according to the features of the preamble of claim 1.

The openings of filling domes and manholes on boiler and Bulk goods wagons, as well as other containers, are usually closed and sealed by hinged or top lids. For this purpose, a closure device is attached to the cover and to the opening.

It is known, for example from DE-PS 12 97 027 or DE-PS 25 07 463, to form a closure device with a circumferential edge flange of the opening nozzle and the cover and to close it by bolts and nuts or toggle screws
to back up. The time-consuming actuation process, the need for tools and the fact that when closing, care must be taken to ensure that all screws are evenly tightened, in order to guarantee even tension, have proven to be disadvantageous. A plastic deformation of the
Seals cannot always be avoided, so that
Leaks can be the result. Furthermore, the means
Use of removable or the presence of not

Properly tightened screws pose another risk
For example, the screws or the wrench can be lost or fall into the container.

These disadvantages largely avoids a closure device (DE-GM 19 88 022), which is in the closed position with around the edge of the lid arranged lever locks can be locked in over-center position is.

This version proves to be unsuitable for use in container traffic. On the one hand, the locking position cannot be visually distinguished from the unlocked position; on the other hand, the lever lock that can be swiveled from the cover to the dome collar is not practical, in particular because the lever lengths that can be used for the actuating lever are limited by this arrangement and thus the contact forces that can be applied are low. Because of the unfavorable one-part direct articulation of the actuating lever on the dome collar, the locking device strikes after unlocking
under the action of a force on the cover in the unlocking direction, which leads to a direct danger to the operating personnel.

The object of the present invention is to provide a
Locking device of the type mentioned, which, quickly and easily operated, reliably displays the operating status and the requirements for largely safe operation

ORIGINAL: t '

is fair.

According to the invention, this object is achieved by the subject matter of Claim 1 solved-further advantageous embodiments of the closure device according to the invention are described in claims 2-5.

The invention will now be described with reference to the drawing, which represents a non-restrictive embodiment, described. It shows

Fig. 1 shows the container opening with the closure device in the vertical Cut ;

2 shows the container opening with the closure device in a plan view .

Each lever lock 1 has an actuating lever 2 and an intermediate lever k connected to this via the joint 3. The actuating lever 2 is designed to pivot about the joint 3 arranged between the arms 2a and 2b with two arms, one arm 2a of which is supported on a recess 2c on a bolt 5 attached to the cover side and the other arm 2b of which is designed as a handle 6. In the closed position, the recess 2c engages around the bolt 5 in the form of a fork, the opening of the recess 2c being arranged opposite its contact pressure flank.

The intermediate lever 4 is fixed with its container-specific end in the bearing 7 so as to be pivotable. Is in the locked position the joint 3 is above the bolt 5 and below the connecting line between the bearing 7 and the bolt 5 in over-center position. The bolt 5 is preferably arranged vertically above the seal 8 and for the purpose of readjustment of the contact pressure eccentrically adjustable. The handle of the operating lever 2 can be on the top of the cover 9 issue. A lever lock 1 is preferably to be arranged opposite the bearing 10 of the cover 9 and the other lever locks 1 are to be distributed symmetrically over the circumference.

For practical implementation in container traffic, at least three lever locks 1 to be provided.

To open the cover 9, the lever locks 1 are through Pivoting the actuating lever 2 about the bolt 5 is unlocked, the joint 3 from the above-mentioned over-center position can be placed in an intermediate layer that still secures the cover 9 upwards, and excess pressure can escape safely is possible without the cover 9 being able to turn over. By further pivoting the operating lever 2 there are Recess 2c of arm 2a exposes the bolt 5 and enables the entire lever lock to pivot about the bearing 7.

When the lid 9 is glued or when there is negative pressure, the lid 9 can be pivoted out of the intermediate position by further single pivoting lever the operating lever 2 around the bolt 5,

the pivoting of the intermediate lever H about the bearing 7 initially not taking place.

The lever locks 1 according to the invention are closed analogously in reverse order, with the desired over-center position of the lever lock 1 by a contact of the Operating lever 2 can be fixed on the cover. An eccentrically designed bolt 5 allows one within predetermined limits adjustable pressing force, so that this arrangement is also suitable for pressure vessels.

List of reference numbers

1 . Lever lock 2. Operating lever 2a. Arrri 2 B . poor i- C. Recess GeJ-nk 4th Intermediate lever ¹ Y - bolt r
O - Handle 7th Camp 3. poetry q. lid ι O. storage

3AD ORIGINAL

Claims (5)

LINKE-HOFMANN-BUSCH WAGGON-FAHRZEUG-MASCHINEN GMBH Em company of the * 5E "I C * 7 *} (\ Salzgitter Group Salzgitter 41, 04/30/1985 tp-dü-m u.Nr. 2196 patent claims 1. Closure device for container openings, in particular for the dome on rail-mounted tank and bulk goods wagons with a sealing hinged or top lid, which is in Locking position can be locked with lever locks arranged around the lid edge in over-center position, thereby characterized in that at least 3 lever locks are provided and that each lever lock (1) has one with his one end in the bearing (7) on the container side attached intermediate lever (4) and one around the other end in the joint (3) has rotatable two-armed container lever (2), one arm (2a) of which is attached to a bolt attached to the cover side (5) and the other arm (2b) of which is designed as a handle (6), with the one in between Joint (3) in closed position below the connecting line between bearing (7) and bolt (5) in over-center position is located. 2. Closure device according to claim 1, characterized in that the bolt (5) is designed to be eccentrically adjustable is. 3. Closure device according to claim 1, characterized in that the actuating lever (2) in the closed position with their The handles (6) rest on the cover (9). 4. Closure device according to claim 1 - 3, characterized in that that the bolt (5) is arranged vertically above the seal (8) *. 5. Closure device according to claim 1 - 4, characterized in that that a lever closure (1) is arranged opposite the bearing (10) of the cover (9) and the other actuating lever (2) are symmetrically distributed over the circumference. ORIGINAL. ! MS; '23