Fire department access to underground garage – in an emergency, the grating opens immediately thanks to push-type gas springs
The gratings must be quick and easy to open in the event of a firefighting operation
In case of an emergency the fire brigade has to have an easy and fast access to the underground parking. For this reason an outside staircase was built in a housing complex in Frankfurt am Main (Germany). To protect it against unauthorized use, these stairs are usually closed by six gratings.
However, during a fire-fighting operation it must be possible to open the gratings easily and quickly and they also have to remain in the open position. Furthermore, there may be nothing in the staircase that could hinder the access or even cause accidents.
Each of the six gratings is opened and kept open by a gas spring
DICTATOR gas springs ensure unobstructed access
Together with DICTATOR, the company Paul Schramm Stahl- und Metallbau of Klingenberg (Germany) solved this problem.
The requirements were:
- Opening angle min. 90°
- When the gratings are open (weight per grating 40 kg!) the gas springs may not protrude into the staircase and hinder the access to the underground parking
- It is mandatory that the gas springs keep the gratings in the open position on their own
- Only very light hand forces are allowed (now only 4.5 kg are needed for lifting the gratings and 5.5 kg for closing them)
The DICTATOR technicians calculated the required gas spring type to meet these demands in spite of the very unfavourable fixing possibilities as well as the fixing points. Due to the exterior mounting the gas springs were made in AISI 304.
The gas springs work as intended, they do not stick out into the staircase
Architect’s plan of the fire brigade access to the underground parking
DICTATOR calculated fixing points for a perfect function of the gas springs
Products used
Push-type gas springs
The application possibilities of DICTATOR gas springs are as varied as our model variants. That is why DICTATOR does not have fixed type tables and only a few stock types. We manufacture our gas spring for your application according to your wishes – from a single unit to large quantities. In addition to high quality, DICTATOR gas springs also offer numerous possible additional features such as a valve, oil chamber, protective tube, compression spring or bio-oil, which considerably extends the range of possible applications.
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