Strap tie down apparatus and system
A strap tie-down apparatus and system. In general, the apparatus includes an elongated shaft generally attached to an automobile transport platform. A ratchet gear wheel having engagement teeth and a ratchet wrench socket wheel having a plurality of wrench apertures can be located on one side of the shaft together or on opposite sides of the shaft. The apparatus further includes a strap spool slidably connected to the shaft. The spool generally includes two side plates connected by a strap attachment bracket. A quick release pawl is connected to the platform adjacent the ratchet gear wheel for engagement with the engagement teeth. The pawl is connected to an elongated rod that is connected to the platform generally parallel with the shaft. The rod partially protrudes adjacent the ratchet wrench wheel. A spring is connected to the shaft adjacent the pawl.
1. A strap tie down apparatus, comprising:
an elongated shaft;
a strap spool slidably connected to the shaft;
a ratchet gear wheel located on one end of the shaft; and
a ratchet wrench wheel located on one end of the shaft.
2. The apparatus as claimed in claim 1 further comprising:
a rod positioned generally parallel to the elongated shaft;
a pawl connected to an end of the rod, the pawl being adjacent the ratchet gear wheel; and
a stop rod adjacent the ratchet gear wheel and located in a circular path defined by the rotation of the pawl about the rod.
3. The apparatus as claimed in claim 2 further comprising a spring connected to the rod adjacent the pawl.
4. The apparatus as claimed in claim 3 wherein the spring is a combination torsion and compression spring.
5. The apparatus as claimed in claim 4 wherein the pawl is biased to rotate through an arc defined in a plane parallel to the ratchet gear wheel when the pawl is disengaged from the ratchet gear wheel.
6. The apparatus as claimed in claim 5 wherein the pawl is further biased in a direction defined along the rod to return to an engagement with the ratchet gear wheel.
7. The apparatus as claimed in claim 1 wherein the a ratchet gear wheel and the ratchet wrench wheel are located a same end of the shaft.
8. The apparatus as claimed in claim 1 wherein the a ratchet gear wheel and the ratchet wrench wheel are located on opposite ends of the shaft.
9. The apparatus as claimed in claim 1 wherein the strap spool comprises: a first side wall; a second side wall parallel to the first side wall; and a strap attachment bracket connected between and to outer portions of the side walls and at a fixed radius from the elongated shaft.
10. The apparatus as claimed in claim 9 further comprising a moveable strap attachment bracket connected between the side walls and at a variable distance from the elongated shaft.
11. The apparatus as claimed in claim 1 wherein the shaft has a non-circular cross section.
12. The apparatus as claimed in claim 11 wherein the strap spool includes a central opening oriented about the non-circular cross section of the shaft.
13. The apparatus as claimed in claim 1 wherein the strap spool comprises:
a first side wall;
a second side wall parallel to the first side wall; and
an inner strap sleeve positioned between the first and second side walls and surrounding a portion of the shaft.
14. The apparatus as claimed in claim 1 wherein the elongated shaft is connected between a first support panel and a second support panel.
15. The apparatus as claimed in claim 14 wherein the ratchet gear wheel located on one end of the shaft is adjacent to the first support panel.
16. The apparatus as claimed in claim 14 wherein the ratchet wrench wheel located on one end of the shaft is adjacent to the second support panel.
17. The apparatus as claimed in claim 14 wherein the ratchet gear wheel and the ratchet wrench wheel are located a same end of the shaft and connected to one of the first and second support panels.
18. A strap tie down system, comprising:
an elongated shaft;
a strap spool slidably connected to the shaft, the strap spool having a first side wall, a second side wall parallel to the first side wall and a strap attachment bracket connected between and to outer portions of the side walls, thereby defining a space between a portion of the shaft located between the side walls and the strap attachment bracket;
a ratchet gear wheel located on one end of the shaft; a ratchet wrench wheel located on one end of the shaft; and a portion of a strap located in the space.
19. The system as claimed in claim 18 wherein tension is applied to the strap when the shaft is rotated thereby pressing the strap attachment bracket against the strap, thereby pressing the strap into itself.
20. A strap tie down system, comprising:
an elongated shaft;
a strap spool connected to the shaft;
means for transferring torque between the spool and the shaft;
means for preventing rotation of the strap spool with respect to the elongated shaft; and
means for varying the position of the strap spool along a length of the elongated shaft.