GN 7237-L

Jointed hinges

Left fixing

Features and applications

GN 7237 pantograph jointed hinges are installed internally to the doors, shutters, or airtight containers, saving space and protecting against acts of vandalism.

They have a 180° maximum angle of opening, which provides optimal accessibility and avoids blocking open door emergency exits.

The GN 7237 hinges are usually used in pairs. This means that for the opening of one door, a GN 7237-L hinge and a GN 7237-R hinge are used.

For increased loads, for example a large size door, they can be used with additional hinges of both types.

 

Design variants

The doors or shutters can be inserted, surface-mounted, or angled.

The largest shims for the doors/jambs and the fold dimensions for the sheet construction depend on the respective type of installation.

• Hinge fitted to the jamb with base with slotted holes perpendicular to the hinge axis (see fig. 1).

• Hinge fitted to the jamb with base with slotted holes parallel to the hinge axis (see fig. 2).

The design variants indicated in fig. 1 and fig. 2 represent the standard installation conditions.

If the hinge installation position is changed or one of the two wall shim dimensions is smaller, the maximum obtainable dimensions change independently of each other. In some cases this allows for working with wall shim dimensions that are greater than specified when the hinge dimensions remain the same.

However, it is recommended to check the design with CAD or a configuration test.

 

 

Special execution on request

• Multiple joint hinges in various materials and/or finishes.

• Other opening angles.

• Various mounting bases.

• Other raising movements.

• With pneumatic spring connection.

Installation and hinge pivot type

The hinge is installed via slotted holes in the mounting base, either perpendicular or parallel to the hinge axis, allowing for two different types of hinge pivot type.

 

 

Adjustment and fixing options

The jointed hinges can be adjusted on three different planes during installation.

This allows for:

• tolerance adjustment or determination of the compression force required by the packing ring;

• adjustment on the two fixing planes via the parallel or perpendicular slotted holes in the mounting base;

correction of the positioning via the spacer plates for hinges in stainless steel PCM-SP

Also available to fix the hinges are spacer plates with threaded holes PCM-TH and plates for jointed hinges GN 2376

The latter can also be welded or inserted from outside the jamb and fixed in position.