Steering adjustment screw retainer
View Patent ↗A retaining strip arranged to impede the rotation of a stop screw is disclosed. The retaining strip connects with the stop screw on both sides of an attachment bracket. The retaining strip is stretched over the bracket and applies a pressure to the screw that serves to maintain screw rotational position during vehicle operation. The retaining strip does not hamper the adjustment of the screw during adjustment.
1. An adjustment device for matching speed of lever actuated variable speed drive motors on a skid steer vehicle comprising:
a bellcrank that pivots to change the speed of a drive motor,:
a control lever mounted on the bellcrank and moveable from a neutral position to a forward speed position wherein the motor is in operation at a corresponding speed;
an adjustable position stop screw accessible from an operator's compartment for engaging and stopping a moveable portion of the lever at the forward speed position;
a bracket configured to hold the stop screw in position;
an adjustment nut positioned on a lower surface of the bracket, the adjustable position stop screw extending through the bracket and the adjustment nut; and
a stretchable retaining strip engaging a first portion of the stop screw on a first side of the bracket and engaging a second portion of the stop screw to restrain rotation of the stop screw, the second portion of the stop screw extending through the adjustment nut such that the adjustment nut is positioned between the stretchable retaining strip and the bracket, wherein the retaining strip is stretched over a portion of the bracket and, as a result of the stretching, imparts restraining forces on the stop screw, at both of the first and second portions of the stop screw, to restrain rotation of the stop screw.
2. The device of claim 1 wherein the retaining strip comprises:
a first aperture;
a second aperture; and
wherein the stop screw interfaces with the first aperture at the first portion and the second aperture at the second portion.
3. The adjustment device of claim 1 , wherein the lever is mounted onto a bellcrank that pivots on a shaft, the bellcrank having a saddle and U-bolts for holding the lever on the bellcrank, and
the stop screw being positioned to engage a closed end of a rear U-bolt when the lever is in the forward speed position.
4. The adjustment device of claim 1 , wherein the forward speed position is the maximum forward speed position of the lever.
5. The adjustment device of claim 1 , wherein the skid steer vehicle has an operator's platform, and the stop screw is mounted on a side of the operator's platform opposite from an operator; and
the stop screw being positioned adjacent an opening in the platform and accessible from the operator's side of the platform.
6. The adjustment device of claim 5 , wherein the control lever extends through an opening into the operator's compartment, and is accessible to an operator from the compartment.
7. The adjustment device of claim 5 , wherein said operator's platform has a forward panel, and the opening to access the stop screw is through the forward panel.
8. An adjustment device for a skid steer loader having drive motors on opposite sides thereof, comprising:
at least one control lever for direction at least one control lever for speed control;
the control levers having a neutral position and a full forward speed position;
an adjustable stop screw for stopping at least one of the levers in the full forward speed position;
said stop screw being positioned adjacent an operator compartment platform;
the platform having an opening aligning with the stop screw so the stop screw is accessible from an interior of an operator's platform;
a bracket configured to hold the stop screw in position;
an adjustment nut positioned on a lower surface of the bracket, the stop screw extending through the bracket and the adjustment nut;
a stretchable retaining strip contacting the stop screw at a first position and at a second position, the first position being on a first side of the bracket and the second position being on a second side of the bracket, the stop screw extending through the bracket and the adjustment nut such that the adjustment nut is positioned between the stretchable retaining strip and the bracket; and
wherein the retaining strip is stretched over a portion of the bracket and, as a result of the stretching, imparts forces on the stop screw, at both the first and second positions of the stop screw, that impedes rotation of the stop screw.
9. The adjustment device of claim 8 , wherein said stop screw is mounted on the bracket and the bracket is positioned adjacent a movable portion of the lever with which it is associated,
wherein the stop screw is threadable through the bracket along an axis of the screw toward and away from a portion of the lever.
10. The adjustment device of claim 9 wherein the retaining strip comprises:
two holes, wherein one aperture interacts with the first portion of the stop screw, and the other aperture interacts with the second portion.
11. The adjustment device of claim 9 , wherein said portion of the lever comprises a clamping U-bolt that clamps the lever to a bellcrank that pivots around a shaft.