This system was
designed in order that the type of tree used in western style riding saddles
could be made adjustable, thereby accommodating the large variety of
confirmations found in the different breeds of horses using this type of
saddle (tree).
Until now trees
for the western type of saddle are produced in only one wither width and the
difference in animal size, in relation to the saddle, is corrected by the use
of one or more saddle pads or blankets.
This adjustable
system in no way compromises the existing tree design and is easy and simple
to use, bearing in mind, the fact that the saddles in which the trees are
found are used for steer roping and the horn must be able to sustain a pull of
at least 2000lbs.
The tree of a
saddle is the foundation onto which the leather of the saddle is secured and
can be likened to the chassis of a motor car. The tree sits on the back of the
horse and the weight of the rider is spread over the back of the animal
through the tree with particular attention being paid to the avoidance of
weight being applied to the spinal column of the animal and this is achieved
by the gullet channel which runs from the front (pommel) to the back (cantle)
of the tree.
The rear
portion of the tree sits on the horse while the front has small
"points" which wrap/surround the front part of the horse known as the
withers. It is these parts (the points) of the saddle tree that locate the
saddle on the horse and help to prevent the saddle from rotating or slipping
from side to side.
The width of
the withers is also the part of the horse that varies most and from breed to
breed as well as varying due to age, physical condition and diet.
It is therefore
this part of the tree, the front arch and points, which should be and are now
adjustable and thereby fitting the withers (shoulders) of each individual
horse.
A conventional
western tree moulded in a composite plastic material is the basis of the design.
In order to economise/utilise and due to the fact that the tree style was
correct apart from its inability to fit different breeds properly the system was
designed to be incorporated and used in conjunction with this design of tree.
The adjustment
is carried out by turning the horn, one complete rotation makes a small increase
or reduction in size (the width
between the two points of the tree) and this rotation is continued until the
desired fitting is achieved. Accidental rotation of the cap head is prevented by
the incorporation of a positive lock. In order to make an adjustment the lock
button must be depressed at the same time as a rotation is made.
The width of the points on conventional trees is approximately 12" and it is believed
that this would suffice as being the widest position required. Therefore the
system is designed to close the tree to approximately 9" from point to
point. This movement of adjustment can be varied depending on models.
The design has taken into account the different types of horn which can vary depending on which
discipline the saddle is designed to satisfy, i.e. calf roping or team roping.
Generally speaking the former requires an upright and shorter horn while the
latter requires a slightly forward leaning and longer horn as well as the
differences in size of the cap/horn head which can also vary.
The adjustment
system is a unit which can either be inserted or moulded into the tree.
The unit can be
installed in the tree moulding at various angles thus accommodating the various
styles. The cap/horn heads are interchangeable and various types are available i.e.
longer or shorter and with different diameter heads.
Production
units of the adjustment system are produced
in two types of materials, namely composite fibre and or stainless steel. The horn
body can be produced by high pressure injection moulding and in a high
tensile fibre material or stainless steel.
The adjustment
screw/thread unit and the arms left and right are produced by means of
investment casting and in stainless steel. The head of the unit is made of a composite fibre material bonded to the screw assembly. All pins and screws are
made of stainless steel.
Click on any of thumbnails for a more detailed view