DAEDALUS TECHNOLOGIES, INC.
MAKING TECHNOLOGY MORE ACCESSIBLE
Fitting the DAESSY Lockable Rear Folding Mount - DLRFM8
Determining the Location for the Locking Rear Folding Adapter
Background
The Locking Rear Folding Adapter (LRFA) must be located partway down the side of the wheelchair between 2 and 5 inches below the seat level. The front-to-back location of the LRFA depends on the In-Use and Folded positions for the mounted device.
The In-Use and Folded Positions
The In-Use position will be determined by the needs of the user and the type of device being mounted. Devices that are operated with scanning or head-pointer function may be higher and farther away than devices that are operated by direct access.
The Folded position is behind the backrest of the chair where the device is in a protected and unobtrusive location that does not interfere with other items.
The folding motion results in the device being tilted through 90º from the In-Use to the Folded position. This is an important consideration as it affects the clearance between the device and the backrest of the wheelchair, as well as any other fittings or items located on the back of the wheelchair. The Folded position of the device should be selected so that the device clears any obstructions.
Protecting the Device in the Folded Position
A non-standard component, the Folding Quick Release Base (USBF), may be desirable in some situations, as it allows the device to be rotated on the Horizontal Tube. With the USBF it may be possible to configure the device in the Folded position so that the screen is facing inwards and the device is between the Horizontal Tube and the backrest. More details on the Folding Quick Release Base are found in Quick Release Bases, Device Adapters and Holders.
Caution:
The screen of a laptop computer or similar device should be closed before folding the DLRFM8 behind the wheelchair backrest.
Location of the Locking Rear Folding Adapter
When the In-Use and Folded positions for the device have been selected the required location for the Locking Rear Folding Adapter (LRFA) can be determined. The LRFA should be no further than 2" to 3" inches from the halfway point between the In-use and Folded positions.
When the device is mounted for direct access with a folded position close behind the backrest of the wheelchair the Locking Rear Folding Adapter will be close to the halfway along the side of the wheelchair. A device mounted high and forward for scanning or head-pointer access will require the LRFA to be mounted ahead of the halfway point. If there is an obstruction at the back of the wheelchair the LRFA may be moved behind the halfway point.
Clearance for the Lock Mechanism
There must be sufficient clearance around the lock mechanism to allow the lever to open and close freely.
Steps in Fitting Procedure:
Fitting the DLRFM8 has the following steps
- Selecting a Frame Clamp location and Lock Orientation
- Measuring and specifying the Frame Clamp size
- Determining the Location for the Locking Rear Folding Adapter
- Determining the Side Tube length and Offset Links required
Lockable Rear Folding Mount