TRI 134

Made for the hand

When designing the TRI 134 handle profile, we took a close look at the cavity that the hand forms when gripping. In the process, we realized that this cavity resembles neither a circle, an oval nor a rectangle, but rather has the shape of a gently rounded triangle. Based on this insight, we developed a completely new handle profile with three sides in Blaustein. The result is TRI 134, a door handle that is literally "made for the hand". Its ergonomic design not only offers unique comfort, but also gives your door a timeless and elegant character. Experience the perfect combination of functionality and design with TRI 134.

Supplied with

Pair of handles incl. rosettes and mounting set

Anatomy and movement patterns guide design

In the search for the perfect haptic experience, GRIFFWERK tested a wide variety of profiles in several studies. Finally, several criteria could be defined that are relevant for a "perfect" gripping experience:

The "perfect" profile corresponds to the hollow space,of the closing hand. This is three-sided for anatomical reasons and not round or rectangular
During operation, the angle of the closed hand is changed, as well as the position of the user in space. The closed hand is therefore "moved" on the door handle. It does not remain static. The edges must therefore be softly rounded to allow for movement play.
Most pressure is exerted on the upper contact surface. This is also the largest contact surface between the door handle and the hand. It therefore plays the most important role for the grip feeling. It is particularly pleasant if it is kept very wide, as is the case with TRI.
The upper contact surface should also be inclined towards the door. An angle that slopes gently towards the door corresponds to the natural posture of the wrist when operating a door handle. Thanks to the inclined angle, the wrist is not hyperextended when pressing the handle (as would be the case with a horizontal surface).

Door handle TRI 134 was developed based on these criteria.

A new classic

Door handle TRI 134 is one of the simple, minimalist design forms that fit any door and any architectural style. In addition to a shapely, restrained design, it offers exceptional gripping comfort.

Haptic in perfection

We have developed a profile cross-section with a "perfect feel". Anatomical requirements and movement patterns were taken into account. The gripping area now has three sides and thus corresponds exactly to the actual cavity of the gripping hand. This is not round but has a three-sided shape due to the joints of the hand.

The Greek pronoun "TRI" ("three" or "threefold") therefore became the eponym of the first handle introduced with the new profile.

Its shape literally nestles against the hand.

DOOR HANDLE SETS

Door handle sets are door fittings that consist of door handles and the corresponding plates or rosettes and are used to open and close doors. Inside the door is a square lever handle pin, which is connected to a lever handle on both sides - via the so-called spindle part.

SQUARE ROSETTES

Square door rosettes are the rectangular or square plates that are fitted around the door handle and keyhole to cover the hole in the door leaf and provide a decorative as well as functional cover. In the square version, they offer a modern and angular design.

BUNTBART CLOSURE

For doors that can be locked with buntbart keys. These locks and keys have a characteristic, often branched bit (the lower part of the key) that is specially shaped to fit into the matching lock. Buntbart locks are often used for room doors and other interior doors where there are no high security requirements.

Door handles: FAQ

Yes, usually a screwdriver or cordless screwdriver is sufficient to remove the protective fittings and pull out the door handle.

A continuing trend: Black Door handles. Griffwerk offers a comprehensive range of these. The special feature: The black door handle is available from Griffwerk in the specially developed black shade Graphite black: particularly matt, high-quality, soft feel.

Many room doors in Germany use a square spindle with a square diameter of 8 millimeters. For BB and PZ locks, a center-to-center distance of 72 millimeters is common. However, deviations are possible—for example, with WC sets, fire- and smoke-rated doors, older doors, or fittings designed for other markets. Therefore, before ordering, measure the square shank size, the door thickness, the mounting distance, and the existing drilling pattern.

Mortice lock door handle sets, BB sets for short, are suitable for room doors made of wood. Doors that are typically equipped with a door lock cylinder require a door handle with profile cylinder insert, or PZ for short. The most common door handle for use on bathrooms and toilets is the WC set with closer. For more intelligent closing and locking, there are door handles with Griffwerk smart2lock technology. The locking mechanism is integrated in the handle. You no longer need a key rosette. Smart2lock handles also impress with a modern and puristic design.

Escutcheons consist of door handle and cover or border of the door lock. Escutcheon fittings: Door handle and keyhole are connected with a metal plate ("door shield"). Interchangeable sets consist of two different door handles: on one side a classic door groff, on the other side a knob. 

Half sets are characterized by the fact that one side has a completely different door handle installed than the other - mainly to connect two rooms with different interior style. 

Door handles can be of different shapes. The door handle can be straight, curved, square or round. The shape of the protective fittings are also shaped to match the door handle.

DIN EN 1906 "Building hardware - Lever handles and door knobs - Requirements and test methods" specifies properties such as permanent function, corrosion resistance, the free angular movement and displacement of lever handles and door knobs. Door handles are differentiated into categories of use (medium to frequent use by persons with low care), fire resistance (no performance to smoke and fire doors), security (from normal purposes to security requirements), corrosion resistance and burglary resistance.

Door handle set TRI 134
Art. No. AT134140171