Physical stresses

Physical stresses arise through unfavourable body postures, rapid or sustained body movements, high force exertion, the handling of loads, or a combination of these aspects. The stresses manifest themselves in strain upon the muscles, locomotor apparatus and spine. Machines and their control stations should be engineered such that stress factors are reduced to a minimum. A risk assessment assists in estimation of a work situation. Corresponding information can be found in the EN ISO 12100 standard and the EN 1005 series of standards.


Location of control actuators

Correct positioning of control actuators on machines is important in order for them to be reached and to be operated safely and comfortably. Attention should be paid here to design in consideration of anthropometric aspects and to the conditions of movement. Relevant information concerning the positioning of control actuators is summarized for example in EN 894-4.

Manual force control for manipulators

Balancer mit Handkraftsteuerung von ZASCHESitec © Michael Hüter

Manual force control for manipulators Where the height is controlled by detection of hand force, sensors are integrated directly into the... more

Hand-held control unit for machine tools

Fernbedienung die positionsunabhängige Maschinensteuerung ermöglicht © Michael Hüter

Hand-held control unit for machine tools The remote control of the machine is a miniature, cable-linked control module that combines... more

Exertion of force and handling of loads

EXPRESSO t2m mit Sensorgriff ermöglicht Materialtransport ohne große Kraftanstrengung © Michael Hüter

Exertion of force and handling of loads The touch2move control concept implemented by Expresso is a universal control system suitable for a... more

Overview

Visibility conditions

Visibility is important for the viewing of relevant areas of work, such as the inside of a machine tool or the area in front of a forklift truck. Constrained visibility can lead to unfavourable body postures or elevated mental stress.

Driver's rotating control station

Gabelstapler mit 180 Grad drehbarem Fahrerstand verhindern gesundheitsschädliche Stellungen der Halswirbelsäule und des Rumpfes © Michael Hüter

Driver's rotating control station Linde's driver's rotating control stations can be fitted to larger models of forklift. By releasing... more

Adjustable control and display element

Einstellbarer Arbeitsplatz eines Bedieners ermöglicht optimale Sichtachse und verhindert Blendeeffekte © Michael Hüter

Adjustable control and display element The control panel on the Trumpf Trubend 7000 range consists of a touch display in which display and... more

Tilting driver's cab

Schubmaststapler mit kippbarer Kabine um Belastung für Genick zu vermindern © Michael Hüter

Tilting driver's cab A tilting driver's cab assists in reducing the necessary angle of head inclination. Such a cab... more

Overview

Motional range

The freedom of movement that a worker has at his or her workplace is important not only for reasons of comfort; insufficient room to move can lead to unfavourable body postures and may even cause accidents.

Folding load floors

Transportwagen mit klappbaren Regalböden für angenehmes Be- und Entladen sowie einsetzen von Hebehilfsmitteln © Michael Hüter

Folding load floors The LKE 800 E3 shelf trolley possesses two shelves on the upper level that can be folded up out of... more

Diagonal door opening

Über-Eck Türöffnungen vergrößern die Durchgangsöffnung und vermindern ungünstige Körperhaltungen © Michael Hüter

Diagonal door opening On machines in the MVC Spinner range, the safety doors are located not on the front of the machine,... more

Telescopic loading floors

LKE Kit-Wagen mit herausfahrbahren/wegklappbaren Regalböden für erleichtertes Be- und Entladen © Michael Hüter

Telescopic loading floors The LKE 800 E4.MAV range of shelf trolleys are equipped with withdrawable shelves. These shelves can... more

Overview

Exertion of force and handling of loads

Load handling is an issue wherever heavy weights need be transported. High forces may also have to be exerted during work, for example for the opening and closing of guards on machine tools. This places stress upon the human musculoskeletal and cardiovascular systems. In order to reduce the stress on workers, facilities must be fitted to machines to reduce the forces to be exerted and the loads to be handled. Relevant information on risk assessment of the forces to be exerted and loads to be handled can be found in the EN 1005-2 and EN 1005-3 standards.

Exertion of force and handling of loads

EXPRESSO t2m mit Sensorgriff ermöglicht Materialtransport ohne große Kraftanstrengung © Michael Hüter

Exertion of force and handling of loads The touch2move control concept implemented by Expresso is a universal control system suitable for a... more

Open pallet changing system

Gut zugängliches Palettenwechselsystem mit vollständig freier Fläche zur Vorbereitung in günstiger Arbeitshöhe © Michael Hüter

Open pallet changing system The Handtmann pallet changer for vertical milling machines enables the tool pallets to be separated... more

Telescopic loading floors

LKE Kit-Wagen mit herausfahrbahren/wegklappbaren Regalböden für erleichtertes Be- und Entladen © Michael Hüter

Telescopic loading floors The LKE 800 E4.MAV range of shelf trolleys are equipped with withdrawable shelves. These shelves can... more

Overview