3 Different Types of Tilt Mechanisms

There are two types of office chair mechanisms: tiltable and non-tiltable. The non-tiltable mechanism is relatively simple. Here we mainly explain the tilt mechanism.

In terms of tilting results, chair tilt mechanisms are divided into three categories: back tilt mechanisms, seat tilt mechanisms, and synchro tilt mechanisms

But we must know, the kind of chair back that is made of flexible material and can be bent under force and recline actually has nothing to do with the chair mechanism!

The kind of chair back that is directly connected to the seat with metal parts, such as steel plate connection also has nothing to do with the tilt mechanism. Because the steel plate is bent to achieve elasticity. However, these two types of chairs belong to the back tilting chair.

The back of the back tilt mechanism can be reclined and the seat is kept level.

The seat tilt mechanism is generally integrated with the seat back, which is very common in leather chairs. The seat is tilted like the seesaw, causing the seat back to tilt together, but the angle between the seat and the back remains the same.

Synchro tilt mechanism means that both the seat and back can be tilted, and the seat back shifts synchronously.

The three are compared in use.

Types-of-tilt-mechanisms
office-chair-806B

Office chair 806B

office-chair-3002M

Office chair 3002M

office-chair-863A

Office chair 863A

office-chair-861A

Office chair 861A

ND008 tilt mechanism

Tilt Mechanism ND008

Multifunction Tilt Mechanism ND002

Tilt Mechanism ND002

Knee Tilt Mechanism NBT005

Tilt Mechanism NBT005

Synchro Tilt Mechanism NBA005

Tilt Mechanism NBA005

1. Back Tilt Mechanisms

Backward tilting is generally easy to wear clothes. For example, if a man wears a business shirt which is stuffed into his pants, then the shirt may be pulled out by the friction of the back of the chair. Of course, the back of some chairs can slide up and down, so this problem will not occur.

2. Seat Tilt Mechanisms

Due to the different connection points between the mechanism and the seat, the seat tilt mechanism is divided into a central seat tilt and a front seat tilt.

Therefore, in terms of the different connection points, the tilt mechanism are divided as central tilt mechanism and the front tilt mechanism.

seat-tilt-mechanism
Synchro Tilt Mechanism NG012D

Central Tilt Mechanism NG0012D

Knee Tilt Mechanism NB002B

Front Tilt Mechanism NB002B

2.1 Seat Tilt Mechanisms - center tilt mechanism

In the center tilt mechanism, the stress point is in the middle of the seat. The seat is like a seesaw. When tilting, the hips sink and the knees rise.

2.2 Seat Tilt Mechanisms - front tilt mechanism

For the front tilt mechanism, the stress point is at the front end of the seat. Its seat is also like a seesaw. But the difference is when tilting the hips sink, and the knees will basically not rise, just like a person squatting while standing.

Large leather chairs are basically front tilt mechanisms. When the leader leaned back, his buttocks would sink, and his knees would not rise or his feet would be off the ground. After all, he should look stable!

3. Synchro Tilt Mechanisms

The synchro tilt mechanism is very complicated from the perspective of mechanical mechanics. Because it is a combination of back tilt and seat tilt, and seat tilt has a central position and a front position. Therefore, there are many types of synchronous tilting, such as X-type, S-type, etc.. Each manufacturer calls it differently, and currently there is no unified subdivision name.

But from the operational level, there are currently three types: wire control adjustment, mechanical adjustment, and weight adjustment.

3.1 Wire control adjustment.

Wire control adjustment generally has a tongue handle or button on the armrest, which can be easily adjusted by flicking with your fingers. 

3.2 Mechanical adjustment.

While mechanical adjustment requires the handle under the seat to be adjusted. 

3.3 Weight adjustment.

Then, for the weight adjustment, the seat surface is pressed by gravity when sitting, and the mechanism under the seat is affected. Then the force is transmitted to the back of the chair. 

Designed by the principle of mechanics, a chair is suitable for all body types. Fat and thin people will be comfortable sitting on it. Their downward weight and backward weight basically cancel each other out.

office-chair-6218B-BL-self-weight-adjustment

Weight adjustment

Tilt-Mechanism-NBA005L

Wire control adjustment

Synchro Tilt Mechanism NBA005S

Mechanical adjustment – NBA005S

Tilt Locking - the important function

The tilt locking is one important function for the chair mechanism. There are 2 types of tilt locking: hierarchical locking and automatic resilient locking.

# Hierarchical locking

The hierarchical locking generally has several gears at different angles, and the seat back can be locked when tilted to any angle.

# Automatic resilient locking

There are also different gears for automatic resilient locking. Fix at a certain gear, to which each time the maximum tilt angle will be reached. But the chair back cannot be locked, and when the body sits up, and the chair back will return to the normal angle. That is why it is called automatic resilient locking.

This kind of locking has two obvious benefits.

  • One is that when the body sits up, the back of the chair rebounds from behind automatically, which provides support for the back. Especially the people with lumbar pain can feel the care of this detail.
  • The other advantage is that it does not need to unlock. As long as the body sits upright, the back of the chair is also straight, which shows that the mental state is simply agile. Otherwise, people get up after a break at noon, their own chair is still lying down!
office-chairs-with-tilt-mechanism

I believe that through this article, everyone can have certain understanding of the back tilt mechanism, the central tilt mechanism, the front tilt mechanism, the synchro tilt mechanism, the wire control mechanism, the self-weight tilt mechanism, etc.

There is another article starting from a different view to explain the tilt mechanisms:

5 Types of Office Chair Tilt Mechanisms

Meanwhile, there are more posts in our blog with all kinds of information.

Welcome to write to us to share more knowledge about the tilt mechanisms.

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