Endurance test of spectacle frame and joints
The standard 12870 describes the endurance test of
the spectacle frame on an alternating movement. The
nose bridge of the glasses is positioned over a rod (modeled according human
nose). The ends of the ear stems are attached in
clamps. The left clamp is connected to an electric motor which generates a rotational movement by means of a tilting of the glasses. 500 cycles
are performed. After the test the distance of the earpieces is measured and checked for deformation. The eyeglass frame with brackets
may not show cracks or breaks and the bracket must
be possible to open and close smoothly.
The device consists of the support rod, the clamps of the samples, the motor and a sensor for monitoring a fraction.
The speed can be set between 5 - 50 rpm. If a break occor before the required 500 cycles, the sensor detects this and stops the test.
The various distances for clamping the glasses can be adjusted quickly and easily by functional operating elements.
|Dimension (W, D, H) ca.||ca.400, 400, 400 mm|
|Rotation Spedd max.||5 – 50 1/min|
|Power Supply||115/230 (50/60 Hz),max. 60W|
Scope of Delivery
1 Power Cord CEE 16A (5 m)
1 Operating Instruction
|Spectacle Frame Endurance Test||610-010||8.374,- €|
Conditions of Delivery
Shipping time: by arrangement
Technical changes reserved.
The illustrations may differ from the actual equipment.
All data without obligation and not-binding.