Office Chair Test Angles

Office chair test angles involve multiple aspects such as back-push testing, suitability assessment for upright sitting during office work, and EN1335 testing, with different key angles for each testing scenario.

In back-push testing, three common angles are mainly tested. A slight recline of 15 degrees is suitable for short breaks during work intervals, allowing the body to relax to some extent while maintaining a relatively alert state for a quick return to work. A standard rest angle of 30 degrees provides a more comfortable resting posture, effectively dispersing body pressure and relieving fatigue in the back and waist, making it suitable for longer rest periods. A large recline of 45 degrees, close to a lying-down position, enables deep relaxation of the body. However, getting up from this angle is relatively inconvenient, making it more suitable for longer rest times such as lunch breaks.

When determining whether an ergonomic chair is suitable for upright sitting during office work, specific angle considerations also apply. The initial backrest angle for common office sitting postures is typically around 100 to 110 degrees. For those primarily engaged in office work or studying, individuals tend to prefer chairs with an angle of ≤106 degrees. This angle ensures a relatively upright sitting posture, facilitating concentration and improving work efficiency. A slightly reclined sitting posture with an angle exceeding 106 degrees but within 110 degrees is relatively comfortable and can reduce body pressure to some extent. However, maintaining this posture for a long time may affect focus during work. Angles greater than 110 degrees are not conducive to office work, as they make the body overly relaxed and difficult to maintain an efficient work state.

In addition, the EN1335 test has specific requirements for the backrest. The backrest must withstand a pulling force in the backward 45-degree direction. This is to simulate the stress experienced by the user when leaning back. Through this test, the strength and stability of the backrest can be inspected, ensuring that it can withstand the backward force of the human body during use and safeguard the user's safety.