Standard Frame Clamp Inner Pieces have a Body and Cap held together by two ¼ inch socket (Allen) head bolts passing on either side of the tube to which the inner piece is attached. A clearance of at least ¾ inch is needed on either side of a tube to attach the inner piece. The Side Mount frame Clamp (described further down this page) may be used when there is not enough clearance on one side of the wheelchair tube to attach a standard inner piece.

Inner pieces have either a hole through the center of the Body for the Swivel Clamp Thread End which joins the parts of a Frame Clamp Assembly, or two threaded holes for attaching only the Head End of the Swivel Clamp.

On all the Frame Clamp Inner Pieces the end which attaches to the outer piece or Offset Link has circular grooves which engage with complementary grooves on the mating part. Two inner pieces cannot be fastened directly together because they have identical grooves—not complementary grooves. The IP-to-IP Adapter is needed to connect two inner pieces. Please contact DAESSY for more information.

Frame Clamp Inner Pieces (UFCxxxxIP) are available for:

• 7/8 inch diameter; xxxx = 875
• 1 inch diameter; xxxx = 1000
• 1 1/8 inch diameter; xxxx = 1125
• 1 1/4 inch diameter; xxxx = 1250
• 1 1/2 inch diameter; xxxx = 1500
• 7/8 inch square; xxxx = 875S
• 1 inch square; xxxx = 1000S
• 3/4 inch by 1 1/2 inch; xxxx = RT
• 1-3/8 inch by 2-1/4 inch; xxxx = ST

For some rectangular sizes longer bolts can be used with a standard inner piece; i.e. the UFCRTIP can be expanded to fit 1½ inch square by using longer than normal bolts.

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The Side Mount Frame Clamp Inner Piece (UFCxxxxSMIP) clamps onto a tube from only one side and may be needed when the only available tube on a wheelchair is close to a seat pan or other tubes. The clearance needed on the accessible side of the tube is 1¼ inches.

The side mount inner piece is made out of steel and the grooved face for attaching the outer piece is on an aluminium part permanently bolted to the steel inner piece. The Swivel Clamp Thread End is inside a hole through the grooved part.
The side mount inner piece is available only for 1 inch (xxxx = 1000) and 7/8" (xxxx = 875) diameter tubing.

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The Multiple Fit Frame Clamp Inner Piece (UFCMFIP) is a four-piece assembly that is used with different length bolts to fit rectangular tube from a smallest size of 1 inch wide by 1¼ inches high to a largest size of 2¾ inches wide by 3 inches high. It is very important that the bolts in the Multiple Fit Inner Piece are screwed in at least eight (8) turns when they are tight but they must not touch the bottom of the threaded hole. Also the bolts must be tightened evenly and the Multiple Fit Frame Clamp Inner Piece must not be used on wedge shaped or round tubing.

Best used as an assessment inner piece for mount evaluations, in most cases a standard inner piece solution for a rectangular wheelchair frame is available.

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Aluminium sleeves can be used to adapt an inner piece to a smaller diameter tube. The standard sizes available are:

● 7/8 inch X 3/4 inch
● 1 inch X 3/4 inch
● 1 inch X 7/8 inch
● 1½ inch x 1-1/8 inch
● 1½ inch X 1¼ inch

Custom sizes are available on special order.

Aluminium spacers can also be used with the square and rectangular inner pieces and these are available in custom sizes on special order. Contact DAESSY for more information.

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Some wheelchairs do not have tubing onto which the Frame Clamp Inner Piece can be clamped and a substitute has to be used. An Inner Piece Adapter (UFCIPA) can be bolted onto any flat surface with two ¼ inch holes exactly 1½ inches apart. In many cases there will be bolt holes or flat surfaces on the wheelchair and a custom bracket to hold the Inner Piece Adapter can be attached. Contact DAESSY for more information.

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The Frame Clamp Outer Piece used with the RIGID MOUNT and FOLDING MOUNT has one face grooved to attach to the Frame Clamp Inner Piece, a cross hole which holds the vertical tube for the mount and a hole through the center for the Swivel Clamp connecting the pieces of the frame clamp. Adjacent to the tube hole is a pin which locates in any of the holes in the Index Clamp and prevents the vertical tube rotating. The three holes in the Index Clamp allow the RIGID MOUNT to be lifted slightly up in the outer piece and rotated to a position away from the user.

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The Locking Swing-Away Outer Piece has a hole for the vertical tube of the mount and three holes with tapered plastic inserts for the locking pin in the Locking Swing-Away Index Clamp. The grooved face for attaching to the Frame Clamp Inner Piece is on a separate part which is permanently bolted to the swing-away outer piece. The thread end of the Swivel Clamp is inside a hole through the grooved part.

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The Rear Folding Adapter for the REAR FOLDING MOUNT has one end grooved to attach to the Frame Clamp Inner Piece with a hole for the head of the Swivel Clamp. The opposite end has a Tube Mount attached to the rotating mechanism for the rear folding motion and a screw-on cover over the stop pins.

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Swivel Clamp:

The Swivel Clamp is used to connect the parts of a Frame Clamp Assembly. The Head End has two ¼ inch holes and the Thread End (sometimes called the Nut End) has two holes threaded for a ¼ inch UNC bolt. The standard bolt length provided with a Swivel Clamp is 1 inch. The longer bolts needed to use the Swivel Clamp with a Frame Clamp Spacer (UFCSPCR) are supplied with the spacer.

Frame Clamp Spacer:

The Frame Clamp Spacer is ¾ inch thick and two can be used to move the Frame Clamp Outer Piece a maximum of 1½ inches further away from the tube on the wheelchair. The spacer can be used in combination with the Offset Link.

• One side of the spacer has inner piece grooves, the other side outer piece grooves. The rim of the spacer is marked with the letters OP and IP; the IP side attaches to the Frame Clamp Inner Piece and the OP side to the outer piece.

Offset Link:

The Offset Link offsets the Frame Clamp Outer Piece 3 inches away from the Frame Clamp Inner Piece. The direction of the offset can be anywhere around a full circle.

• One end of the Offset Link has inner piece grooves and is marked with the letters OP. The other end has outer piece grooves on the opposite side and is marked IP. The Frame Clamp Inner Piece is attached to the IP end and the outer piece to the OP end.
• When two Offset Links are used the IP end of one is attached to the OP end of the other.
• The Offset Link is ½ inch thick and moves the outer piece this amount further out on the wheelchair

The Offset Link is also described in the section on S-Tubes and Offset Links. This section also describes the Special Offset Link (O3LS) which has the grooves for the inner and outer pieces of the frame clamp both on the same side.

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