DAEDALUS TECHNOLOGIES, INC.
MAKING TECHNOLOGY MORE ACCESSIBLE
Fitting the DAESSY Lockable Rear Folding Mount - DLRFM8
Selecting the Frame Clamp Location
Background
The DAESSY Lockable Rear Folding Mount – DLRFM8 can be mounted on either the left or right side of a wheelchair with left and right defined from the position of the person seated in the wheelchair. The mount must be attached to the tilting seat frame in order for it to remain in the same orientation relative to the user, independent of the tilt angle of the seat. The Frame Clamp Assembly must not interfere with the tilting motion of the wheelchair.
The Frame Clamp Inner Piece (UFCxxxxIP) requires slightly more than two inches of length and three-quarter inches of space above and below the wheelchair frame tube to which it will be clamped. There should be sufficient room for a hand to reach behind the behind the tube to tighten bolts. It does not matter how the wheelchair frame tube is oriented because the Swivel Clamps allow the Offset Links and Rear Folding Adapter to be rotated to any angle relative to the Frame Clamp Inner Piece.
Caution:
The Inner Piece cannot be located directly above the position for the Locking Rear Folding Adapter as there will not be enough space for correct operation of the Locking Mechanism and the Lock Mechanism may not be releasable to fold the mount behind the backrest.
The selected location must be part of the wheelchair frame, not a removable armrest or footrest.
The Locking Rear Folding Adapter must be located 2 to 5 inches below the seat of the wheelchair and partway down the side of the wheelchair at a point midway between the in-use and folded positions of the mounted device. Offset Links are used to span the distance between the Frame Clamp Inner Piece (UFCxxxxIP) and the Locking Rear Folding Adapter (LRFA). When there are two or more possible locations the UFCxxxxIP should be placed as close as possible to the required location of the Locking Rear Folding Adapter however, the Inner Piece cannot be located directly above the position for the LRFA as there will not be enough space for correct operation of the locking mechanism.
Determining the Lock orientation
The Locking Rear Folding Adapter and Lock Mechanism are available in Right and Left hand version. The side of the chair on which the mount will be attached must be specified at the time of ordering. The Locking Rear Folding Adapter and Lock Mechanism must only be installed on the side of the chair for which it is designed.
Obstructions
In addition to spanning the distance between the Frame Clamp Inner Piece attachment location and the required position of the Lockable Rear Folding Adapter, Offset Links and Frame Clamp Spacers may be used to avoid obstructions and interference with other wheelchair fittings. It is important that no part of the Frame Clamp Assembly interferes with movable parts of the wheelchair such as caster wheels or brake levers. The Side Tube of the DLRFM8 must not contact any part of the side of the wheelchair as it moves through the folding sequence.
Quick Check
A quick check for a suitable location for the Frame Clamp Inner Piece is to find a part of the wheelchair frame tube which has enough space to be gripped by three fingers when reaching from inside the wheelchair frame.
Unusual Situations
Some wheelchairs do not have any tubing freely accessible on the frame or do not have a tube frame. When a seat pan restricts access to the upper edge of the wheelchair frame tubing, it may be possible to use a Side Mount Frame Clamp Inner Piece, which requires no clearance on the topside of the tube and only 1 1/4" clearance on the bottomside. When the wheelchair does not have a tube frame it may have boltholes or other possible attachment methods in a suitable location. In some cases a Bolt-on Adapter may be substituted for the Inner Piece. More information on the complete range of available Frame Clamp Inner Pieces can be found Frame Clamp Inner Piece Styles.
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 Rear Folding Adapter
- Determining the Side Tube length and Offset Links required
Lockable Rear Folding Mount