초록 ▼

A retractable tie down device may comprise a frame, a spool including a ratchet wheel rotatably mounted to the frame, a flexible web having one end mounted to the spool, a power spring configured to rotate the spool in a web take-up direction, a handle movably mounted to the frame, a ratchet pawl mo

A retractable tie down device may comprise a frame, a spool including a ratchet wheel rotatably mounted to the frame, a flexible web having one end mounted to the spool, a power spring configured to rotate the spool in a web take-up direction, a handle movably mounted to the frame, a ratchet pawl movably mounted to the handle and biased toward the ratchet wheel, and a lock pawl movably mounted to the frame and biased toward the ratchet wheel. The handle may be configured to move the lock pawl away from the ratchet wheel, and the frame may be configured to maintain the ratchet pawl away from the ratchet wheel, when the handle is in a position adjacent to the frame so that the spool is rotatable in a web pay-out direction.

대표청구항 ▼

What is claimed is: 1. A retractable tie down device, comprising: a frame, a spool rotatably mounted to the frame, the spool having at least one ratchet wheel mounted thereto, a flexible web having one end mounted to the spool, a power spring configured to rotate the spool in a web take-up directio

What is claimed is: 1. A retractable tie down device, comprising: a frame, a spool rotatably mounted to the frame, the spool having at least one ratchet wheel mounted thereto, a flexible web having one end mounted to the spool, a power spring configured to rotate the spool in a web take-up direction, a handle movably mounted to the frame and movable relative to the frame between first and second positions, a ratchet pawl movably mounted to the handle and biased toward the at least one ratchet wheel, and a lock pawl movably mounted to the frame and biased relative to the frame toward the at least one ratchet wheel, wherein the handle is configured to maintain the lock pawl away from the at least one ratchet wheel, and the frame is configured to maintain the ratchet pawl away from the at least one ratchet wheel, when the handle is in each of the first and second positions so that the spool is rotatable in a web pay-out direction, opposite to the web take-up direction, whereby the web may be drawn away from the device. 2. The retractable tie down device of claim 1 the frame defines a channel configured to receive the ratchet pawl therein when the handle is in the first position so that the handle is secured to the frame in the first position. 3. The retractable tie down device of claim 1 wherein the handle defines third and fourth positions, between the first and second positions, relative to the frame, the handle being movable between the third and fourth positions to ratchet the spool in the web take-up direction. 4. The retractable tie down device of claim 3 wherein the ratchet pawl and the lock pawl both contact the at least one ratchet wheel throughout movement of the handle between the third and fourth positions, and wherein the at least one ratchet wheel defines a plurality of teeth thereon oriented to allow movement of the ratchet pawl relative to the at least one ratchet wheel, while engaging the lock pawl such that the lock pawl locks the at least one ratchet wheel to the frame, when the handle is moved from the third to the fourth position, and to engage the ratchet pawl, while allowing the lock pawl to move relative to the at least one ratchet wheel, when the handle is moved from the fourth to the third position, whereby the spool is ratcheted in the web take-up direction by moving the handle between the third and fourth positions. 5. The retractable tie down device of claim 1 wherein the handle defines a fifth position, between the first and second positions, relative to the frame, and wherein the frame defines a channel configured to receive the ratchet pawl therein when the handle is in the fifth position so that the handle is secured to the frame, and wherein the ratchet pawl and the lock pawl both engage the at least one ratchet wheel so that the spool is prohibited from rotating in the web pay-out direction when the handle is in the fifth position. 6. The retractable tie down device of claim 5 wherein the handle is movable under manual force applied thereto to the second position, and wherein the handle is configured to automatically move from the second position to the fifth position when the manual force is removed from the handle with the handle in the second position. 7. The retractable tie down device of claim 1 wherein the frame defines a first end and a second end opposite to the first end, and wherein the spool is oriented relative to the frame such that the flexible web pays out of the first end of the frame. 8. The retractable tie down device of claim 7 wherein the frame defines a hole through the frame between the first and second ends, the hole configured to receive a mounting post whereby the device is mounted to the mounting post. 9. The retractable tie down device of claim 7 wherein the frame defines a web slot through the frame adjacent to the second end of the frame, the web slot configured to receive another web, separate from the flexible web, therethrough. 10. The retractable tie down device of claim 9 further comprising the another web extending away from the second end of the frame and having one end extending through the web slot and then secured to itself such that the another web is secured to the frame. 11. The retractable tie down device of claim 10 further comprising an engagement member attached to an opposite end of the another web. 12. The retractable tie down device of claim 1 further comprising an engagement member attached to an opposite end of the flexible web. 13. A retractable tie down device, comprising: a frame defining a channel therein, a spool rotatably mounted to the frame, the spool having at least one ratchet wheel mounted thereto, a flexible web having one end mounted to the spool, a power spring configured to rotate the spool in a web take-up direction, a handle movably mounted to the frame and movable relative to the frame, a ratchet pawl movably mounted to the handle and biased toward the at least one ratchet wheel, and a lock pawl movably mounted to the frame and biased relative to the frame toward the at least one ratchet wheel, wherein the channel is configured to receive the ratchet pawl therein such that the handle is secured to the frame, and when the ratchet pawl is received within the channel the ratchet pawl and the lock pawl each engage the at least one ratchet wheel to prohibit the spool from rotating in the web pay-out direction. 14. The retractable tie down device of claim 13 wherein the frame defines a first end and a second end opposite to the first end, and wherein the spool is oriented relative to the frame such that the flexible web pays out of the first end of the frame. 15. The retractable tie down device of claim 14 wherein the frame defines a hole through the frame between the first and second ends, the hole configured to receive a mounting post whereby the device is mounted to the mounting post. 16. The retractable tie down device of claim 14 wherein the frame defines a web slot through the frame adjacent to the second end of the frame, the web slot configured to receive another web, separate from the flexible web, therethrough. 17. The retractable tie down device of claim 16 further comprising the another web extending away from the second end of the frame and having one end extending through the web slot and then secured to itself such that the another web is secured to the frame. 18. The retractable tie down device of claim 17 further comprising an engagement member attached to an opposite end of the another web. 19. The retractable tie down device of claim 13 further comprising an engagement member attached to an opposite end of the flexible web. 20. A retractable tie down device, comprising: a frame, a spool rotatably mounted to the frame, the spool having at least one ratchet wheel mounted thereto, a flexible web having one end mounted to the spool, a power spring configured to rotate the spool in a web take-up direction, a handle movably mounted to the frame and movable relative to the frame, a ratchet pawl movably mounted to the handle and biased toward the at least one ratchet wheel, and a lock pawl movably mounted to the frame and biased relative to the frame toward the at least one ratchet wheel, wherein the handle is movable under manual force to a first position relative to the frame in which the handle maintains the lock pawl away from the at least one ratchet wheel and the frame maintains the ratchet pawl away from the at least one ratchet wheel so that the spool is rotatable in a web pay-out direction opposite to the web take-up direction, whereby the web may be drawn away from the device, and wherein the handle is configured to automatically move from the first position when the manual force is removed from the handle to a second position relative to the frame in which the ratchet pawl is received within a channel defined in the frame such that the handle is secured to the frame and in which the ratchet pawl and the lock pawl each engage the at least one ratchet wheel so that the spool is prohibited from rotating in the web pay-out direction. 21. The retractable tie down device of claim 20 wherein the handle defines third and fourth positions relative to the frame with the second position defined between the first position and each of the third and fourth positions, the handle being movable between the third and fourth positions to ratchet the spool in the web take-up direction. 22. The retractable tie down device of claim 21 wherein the ratchet pawl and the lock pawl both contact the at least one ratchet wheel throughout movement of the handle between the third and fourth positions, and wherein the at least one ratchet wheel defines a plurality of teeth thereon oriented to allow movement of the ratchet pawl relative to the at least one ratchet wheel, while engaging the lock pawl such that the lock pawl locks the at least one ratchet wheel to the frame, when the handle is moved from the third to the fourth position, and to engage the ratchet pawl, while allowing the lock pawl to move relative to the at least one ratchet wheel, when the handle is moved from the fourth to the third position, whereby the spool is ratcheted in the web take-up direction by moving the handle between the third and fourth positions. 23. The retractable tie down device of claim 20 wherein the frame defines a first end and a second end opposite to the first end, and wherein the spool is oriented relative to the frame such that the flexible web pays out of the first end of the frame. 24. The retractable tie down device of claim 23 wherein the frame defines a hole through the frame between the first and second ends, the hole configured to receive a mounting post whereby the device is mounted to the mounting post. 25. The retractable tie down device of claim 23 wherein the frame defines a web slot through the frame adjacent to the second end of the frame, the web slot configured to receive another web, separate from the flexible web, therethrough. 26. The retractable tie down device of claim 25 further comprising the another web extending away from the second end of the frame and having one end extending through the web slot and then secured to itself such that the another web is secured to the frame. 27. The retractable tie down device of claim 26 further comprising an engagement member attached to an opposite end of the another web. 28. The retractable tie down device of claim 20 further comprising an engagement member attached to an opposite end of the flexible web.