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The goal: Mobility

Plain bearings from igus® in the electric wheelchairs of Motion Solutions

The products of Motion Solutions GmbH – electric wheelchairs and rehabilitation therapy systems – are all about the mobility of the people who use them. The products themselves are also extremely mobile – for example the active seating system for wheelchairs, which can be adjusted in various directions, or the heavy-duty wheelchair for people weighing up to 350 kg. In the construction of these devices, the designers use the igus® construction kit of maintenance-free plain bearings.
 
The name says it all: Motion Solutions GmbH in Remscheid, or "moso", has set itself the task of ensuring and maintaining the movement and mobility of its disabled customers. The company develops and manufactures a wide range of tools that are characterised by innovative functions - for example, by the special mobility of the seat systems. Klaus Gierse, Founder and Managing Director of Motion Solutions, says: "We are a niche provider that offers special solutions and starts where the industry stops with its mass-produced products. “

Standing exercisers support the mobility of paraplegic patients

For people who cannot stand independently, the Motion Solutions customises and provides the standing exerciser, "EasyStand Evolv". They bring the user into the standing position at the push of a button and without any other intervention. This strengthens the active and passive musculature, stabilises the cardiovascular system, treats contractures and brings the users to the same level as their standing fellow human beings.
 
The construction of such a device is anything but simple. "The mechanics must be adapted to the body's joint function," explains Klaus Gierse. "During the entire standing up process, shearing motion should not occur on the backrest or on the seat surface, and all system components that touch and guide the body must be in the same positional relationship throughout the entire standing up and sitting down phases. “
 
This is, of course, ensured for the EasyStand Evolv standing exerciser. Moreover, these devices have the so-called "delordosing", which moves the pelvis into the orthopaedically correct position by moving the seat surface according to the needs of the user in an additional movement. The devices themselves are also in a variety of movements, consistent with the company name.

Delordosing System from Motion Solutions

"You only can tell if you try." Ulf Hottung, Industry Manager for Medical Technology at igus®, tests an "EasyStand Evolv Classic with Delordosing System" standing exerciser from Motion Solutions.

 
drylin® W profile guide

The "delordosing" of the standing exerciser is implemented via a drylin® W profile guide from the igus® modular system.

 
Plain bearings from the igus® modular system

The "moso" engineers have implemented these slide-outs with a drylin® W profile guide from the igus® product range of maintenance-free plain bearings, which exerts a leverage on the delordosing system. More specifically, it is a drylin® WJ200QM square-shaped pillow block. It runs on a profile rail guide and is equipped with a clamping device, which synchronises the radius of movement in relation to the standing.
 
This is just one of many examples of the use of igus® plain bearings in Motion Solutions' rehabilitation equipment and wheelchairs. The designers of the company have been using igus® plain bearings for more than ten years and are doing this for a good reason. Klaus Gierse: "The bearings are compact, they do not require any lubrication and are perfectly suited for outdoor use. “

Wheelchair in "heavy duty" version

The fact that the igus® bearings are also suitable for high loads must be demonstrated in other devices in the "moso" product range. Prime example here is the "Leo 350 XXL": An electric wheelchair for people with disabilities, which weigh up to 350 kilograms and are up to 2.20 metres tall. The wheelchair itself is extremely manoeuvrable and compact. "Actually, igus® bearings are installed at every bearing point," explains one of the fitters in production. For example, in the longitudinal adjustment as well as in the (optional) height adjustment of the seat system, drylin® linear guides again provide for mobility and stability.
 
The seat tilt can also be highlighted, which means that the seat can be tilted upwards to the rear by 45 degrees and forward, as an entry and exit aid. Here, igus® bearing bushings are used as well as in the drive and steering system of the Leo 350. They also prove themselves in the case of high mechanical loads such as shocks caused, for example, by driving over the curbs, as well as by the twists to which the chassis is subjected in practice.

Compact electric wheelchair for people with a body weight of up to 350 kg

With the LEO 350 XXL, Motion Solutions has developed an extremely manoeuvrable and compact electric wheelchair for people with a body weight of up to 350 kg.

 
igus® drylin® linear bearings

The height adjustment of the LEO seat is guided by drylin® linear bearings from igus®.

 
igus® drylin® linear bearings

The longitudinal adjustment of the seat is also guided by the drylin® linear bearings from igus®.

 
Innovation: Active seat module with cardanic mobility

A new development of Motion Solutions is an active seat module, which is installed in existing wheelchairs and provides an astonishingly high degree of mobility: the user can bring the backrest and seat into the overhead position.
However, the seat can also be tilted forward in the other direction by up to 33 degrees as a standing-up aid.

Managing Director of Motion Solutions: Klaus Gierse

Left in the picture: Klaus Gierse, Managing Director of Motion Solutions

 
igus® e-chains®

e-chains® from igus® enable the energy supply to the electric chair components.

 

Klaus Gierse explains: "A healthy person, who sits, always shifts his position. This is often not possible for an electric chair user. The possible consequences are circulatory disorders or even open pressure points. With our seat module, the user can shift his or her position and selectively promote the circulation or simply transfer it via the stand. All the angles of the seat system can be programmed in such a way that one side and then the other, is pressure-relieved automatically and alternately."
 
Here, too, the mobility of the user is supported again - with highly mobile drive systems. The shears of the cardan system, which are protected by a pair of bellows, are equipped with igus® plain bearings. And the designers of Motion Solutions not only use the plain bearing modular system but also the system components of the second business division of igus®: plastic energy chains are also used for the energy supply to the movable and adjustable components of the electric chairs.

Here, you can find the products used
Here you can find further interesting applications from very different areas of use: