Claims Analysis
Total Claims: 43
Claim 1
Independent Claim
96 words
A retracting device comprising a support, a storage member rotatably mounted on the support, a flexible restraining element wound on the storage member, power means urging the storage member in the direction to wind the restraining element on the storage member, lock means mounted on the support and movable into position to prevent the storage member from rotating to unwind the restraining element after initial unwinding, and means for initiating operation of said lock means solely upon the stopping of the unwinding rotation of the storage member and thereby prevent further unwinding of the restraining element.
Claim 2
Dependent Claim
96 words
A retracting device comprising a support, a storage member rotatably mounted on the support, a flexible restraining element wound on the storage member, power means urging the storage member in the direction to wind the restraining element on the storage member, lock means mounted on the support and movable into position to prevent the storage member from rotating to unwind the restraining element after initial unwinding, and means for initiating operation of said lock means solely upon the stopping of the unwinding rotation of the storage member and thereby prevent further unwinding of the restraining element.
Claim 3
Dependent Claim
171 words
A retracting device comprising a support, a storage member rotatably mounted on the support, a flexible restraining element wound on the storage member, power means urging the storage member in the direction to wind the restraining element on the storage member, lock means mounted on the support and movable into position to prevent the storage member from rotating to unwind the restraining element after initial unwinding, and means sensitive to the stopping of the unwinding rotation of the storage member to initiate operation of said lock means and thereby prevent further unwinding of the restraining element, said stop sensitive means includes means for urging said lock means into operation as unwinding force is applied to the restraining element, and means responsive to unwinding movement of the restraining element to block the operation of the lock means during initial unwinding movement from a fully wound position, said stop sensitive means sensing the stopping of the unwinding motion to release the lock means and thereby allow the lock means to prevent further unwinding.
Claim 4
Dependent Claim
171 words
A retracting device comprising a support, a storage member rotatably mounted on the support, a flexible restraining element wound on the storage member, power means urging the storage member in the direction to wind the restraining element on the storage member, lock means mounted on the support and movable into position to prevent the storage member from rotating to unwind the restraining element after initial unwinding, and means sensitive to the stopping of the unwinding rotation of the storage member to initiate operation of said lock means and thereby prevent further unwinding of the restraining element, said stop sensitive means includes means for urging said lock means into operation as unwinding force is applied to the restraining element, and means responsive to unwinding movement of the restraining element to block the operation of the lock means during initial unwinding movement from a fully wound position, said stop sensitive means sensing the stopping of the unwinding motion to release the lock means and thereby allow the lock means to prevent further unwinding.
Claim 5
Dependent Claim
166 words
A retracting device comprising a support, a storage member rotatably mounted on the support, a flexible restraining element wound on the storage member, power means urging the storage member in the direction to wind the restraining element on the storage member, lock means mounted on the support and movable into position to prevent the storage member from rotating to unwind the restraining element after initial unwinding, and means sensitive to the stopping of the unwinding rotation of the storage member to initiate operation of said lock means and thereby prevent further unwinding of the restraining element, said stop sensitive means includes movable means mounted on said storage member in a manner to move from a first position to a second position during initial unwinding rotation of the storage member, and spring means for urging the movable means to the first position upon stopping of the initial unwinding rotation of the storage member, the urging by said spring being used to initiate operation of the locking means.
Claim 6
Dependent Claim
166 words
A retracting device comprising a support, a storage member rotatably mounted on the support, a flexible restraining element wound on the storage member, power means urging the storage member in the direction to wind the restraining element on the storage member, lock means mounted on the support and movable into position to prevent the storage member from rotating to unwind the restraining element after initial unwinding, and means sensitive to the stopping of the unwinding rotation of the storage member to initiate operation of said lock means and thereby prevent further unwinding of the restraining element, said stop sensitive means includes movable means mounted on said storage member in a manner to move from a first position to a second position during initial unwinding rotation of the storage member, and spring means for urging the movable means to the first position upon stopping of the initial unwinding rotation of the storage member, the urging by said spring being used to initiate operation of the locking means.
Claim 7
Dependent Claim
19 words
The device of claim 3 wherein said movable means renders the Lock means ineffective when in said second position.
Claim 8
Dependent Claim
42 words
The device of claim 3 wherein said movable means comprises a disk rotatably mounted on the storage member to pivot between said first and second positions, the disk being movable by frictional engagement with means fixed to rotate with the storage member.
Claim 9
Dependent Claim
26 words
The device of claim 3 wherein said spring means urges said lock means into locking position as it urges the movable means towards its first position.
Claim 10
Dependent Claim
23 words
The device of claim 1 including reset means for rendering the lock means ineffective as the restraining element approaches its fully wound condition.
Claim 11
Dependent Claim
131 words
A safety belt retractor including a support, a reel mounted on the support, a belt mounted on the reel, a retraction spring mounted on the support urging the reel in a direction to retract the belt, a lock mounted on the support for preventing unwinding of the belt, the improvement comprising: means for rendering the lock ineffective when the belt is retracted so as to permit initial unwinding of the belt, said means being rendered ineffective after a predetermined initial amount of unwinding rotation of the belt; and stop sensitive means for keeping the lock ineffective as the belt is being unwound and including means responsive solely to the interruption of the unwinding rotation of the reel for releasing the lock to prevent further unwinding of the belt after the interruption.
Claim 12
Dependent Claim
131 words
A safety belt retractor including a support, a reel mounted on the support, a belt mounted on the reel, a retraction spring mounted on the support urging the reel in a direction to retract the belt, a lock mounted on the support for preventing unwinding of the belt, the improvement comprising: means for rendering the lock ineffective when the belt is retracted so as to permit initial unwinding of the belt, said means being rendered ineffective after a predetermined initial amount of unwinding rotation of the belt; and stop sensitive means for keeping the lock ineffective as the belt is being unwound and including means responsive solely to the interruption of the unwinding rotation of the reel for releasing the lock to prevent further unwinding of the belt after the interruption.
Claim 13
Dependent Claim
286 words
A safety belt retractor including a support, a reel mounted on the support, a belt mounted on the reel, a retraction spring mounted on the support urging the reel in a direction to retract the belt, a lock mounted on the support for preventing unwinding of the belt, the improvement comprising: means for rendering the lock ineffective when the belt is retracted so as to permit initial unwinding of the belt, said means being rendered ineffective after a predetermined initial amount of unwinding rotation of the belt; stop sensitive means for keeping the lock ineffective as the belt is being unwound and for sensing the interruption of the unwinding rotation of the reel for releasing the lock to prevent further unwinding of the belt after the interruption, said stop sensitive means includes: a first disk mounted to rotate with the reel; a second disk pivotally mounted on the same axis as the rotating disk, the disks being positioned in face to face relation with a layer of viscous material in between such that rotation of the rotating disk causes the pivotally mounted disk to rotate to the extent of its limited movement, the movement of said pivotally mounted disk which occurs during the unwinding movement of the reel being utilized to hold the lock out of engagement with the reel when the belt is initially withdrawn from a fully retracted position; and spring means urging said pivotally mounted disk in a belt winding direction against the drag of the viscous material to release the lock bar when the unwinding movement of the belt is interrupted, the spring means urging the pivotally mounted disk to move against the drag of the viscous material to release the lock.
Claim 14
Dependent Claim
286 words
A safety belt retractor including a support, a reel mounted on the support, a belt mounted on the reel, a retraction spring mounted on the support urging the reel in a direction to retract the belt, a lock mounted on the support for preventing unwinding of the belt, the improvement comprising: means for rendering the lock ineffective when the belt is retracted so as to permit initial unwinding of the belt, said means being rendered ineffective after a predetermined initial amount of unwinding rotation of the belt; stop sensitive means for keeping the lock ineffective as the belt is being unwound and for sensing the interruption of the unwinding rotation of the reel for releasing the lock to prevent further unwinding of the belt after the interruption, said stop sensitive means includes: a first disk mounted to rotate with the reel; a second disk pivotally mounted on the same axis as the rotating disk, the disks being positioned in face to face relation with a layer of viscous material in between such that rotation of the rotating disk causes the pivotally mounted disk to rotate to the extent of its limited movement, the movement of said pivotally mounted disk which occurs during the unwinding movement of the reel being utilized to hold the lock out of engagement with the reel when the belt is initially withdrawn from a fully retracted position; and spring means urging said pivotally mounted disk in a belt winding direction against the drag of the viscous material to release the lock bar when the unwinding movement of the belt is interrupted, the spring means urging the pivotally mounted disk to move against the drag of the viscous material to release the lock.
Claim 15
Dependent Claim
29 words
The retractor of claim 8 wherein said means for rendering the lock ineffective when the belt is retracted includes cam means movable in response to rotation of the reel.
Claim 16
Dependent Claim
232 words
A safety belt retractor including a support, a reel mounted on the support, a belt mounted on the reel, a retraction spring mounted on the support urging the reel in a direction to retract the belt, a lock mounted on the support to be urged into engagement with the reel to prevent protraction of the belt, the improvement comprising: a first disk mounted to rotate with the reel; a second disk mounted on the same axis as the first disk but being mounted to rotate independently of the reel, the disks being positioned in face to face relation with a layer of viscous material in between such that rotation of the first disk causes the second disk to rotate because of the viscous Material; an extension fixed to move with the lock; a finger formed on said second disk engaging the extension for holding the lock out of engagement with the reel once the belt is started to be unwound from a retracted position; spring means urging said second disk into position with respect to said extension to move the lock into engagement with the reel when the unwinding movement of the belt is interrupted; and cam means for engaging said extension to hold the lock out of engagement with the reel when the reel has been rotated to a position wherein the belt is substantially fully retracted to permit initial unwinding.
Claim 17
Dependent Claim
232 words
A safety belt retractor including a support, a reel mounted on the support, a belt mounted on the reel, a retraction spring mounted on the support urging the reel in a direction to retract the belt, a lock mounted on the support to be urged into engagement with the reel to prevent protraction of the belt, the improvement comprising: a first disk mounted to rotate with the reel; a second disk mounted on the same axis as the first disk but being mounted to rotate independently of the reel, the disks being positioned in face to face relation with a layer of viscous material in between such that rotation of the first disk causes the second disk to rotate because of the viscous Material; an extension fixed to move with the lock; a finger formed on said second disk engaging the extension for holding the lock out of engagement with the reel once the belt is started to be unwound from a retracted position; spring means urging said second disk into position with respect to said extension to move the lock into engagement with the reel when the unwinding movement of the belt is interrupted; and cam means for engaging said extension to hold the lock out of engagement with the reel when the reel has been rotated to a position wherein the belt is substantially fully retracted to permit initial unwinding.
Claim 18
Dependent Claim
19 words
The retractor of claim 11 including reset means responsive to rotation of the reel for moving said cam means.
Claim 19
Dependent Claim
70 words
The retractor of claim 12 wherein said reset means comprises a pair of speed reducing gears positioned adjacent one end of said support and adjacent said disks, and with said extension being positioned between the gears and the disks, said spring means being coiled around the shaft between the disk and the gears and having one end linked to the second disk and the other end engaging the lock extension.
Claim 20
Dependent Claim
310 words
A safety belt retractor including a support, a reel having a shaft mounted on the support having ratchet teeth mounted to rotate with the reel, a belt mounted on the reel, a retraction spring mounted on the support urging the reel in a direction to retract the belt, a lock bar mounted on the support being movable into engagement with the ratchet teeth to prevent unwinding of the belt, the improvement comprising: a pair of disks mounted on one end of the reel shaft to rotate with the shaft; a disk rotatably mounted on the shaft between and in face to face contact with said pair of disks and with viscous material between the contacting surfaces of the disks such that rotation of the pair of disks urges the middle disk to rotate with them because of the viscous material, said stop sensitive disk having a pair of circumferentially spaced fingers extending radially beyond the periphery of the pair of disks; a crank arm mounted on an end of said lock bar to form an extension of the bar, said crank arm having a pair of spaced pins which extend parallel to the reel shaft and are positioned between the fingers of said middle disk in the rotational path of the fingers to thereby form two stops for limiting the movement of the middle disk to pivotal action, one of the pins limiting the movement of the middle disk in a belt unwinding direction and the other pin limiting the movement in winding direction; and a spring urging the pin which limits the movement of the middle disk in the belt winding direction into engagement with the adjacent finger of the middle disk said spring urging the middle disk in the belt winding direction and urging the lock bar into locking position when unwinding tension is applied to the belt.
Claim 21
Dependent Claim
310 words
A safety belt retractor including a support, a reel having a shaft mounted on the support having ratchet teeth mounted to rotate with the reel, a belt mounted on the reel, a retraction spring mounted on the support urging the reel in a direction to retract the belt, a lock bar mounted on the support being movable into engagement with the ratchet teeth to prevent unwinding of the belt, the improvement comprising: a pair of disks mounted on one end of the reel shaft to rotate with the shaft; a disk rotatably mounted on the shaft between and in face to face contact with said pair of disks and with viscous material between the contacting surfaces of the disks such that rotation of the pair of disks urges the middle disk to rotate with them because of the viscous material, said stop sensitive disk having a pair of circumferentially spaced fingers extending radially beyond the periphery of the pair of disks; a crank arm mounted on an end of said lock bar to form an extension of the bar, said crank arm having a pair of spaced pins which extend parallel to the reel shaft and are positioned between the fingers of said middle disk in the rotational path of the fingers to thereby form two stops for limiting the movement of the middle disk to pivotal action, one of the pins limiting the movement of the middle disk in a belt unwinding direction and the other pin limiting the movement in winding direction; and a spring urging the pin which limits the movement of the middle disk in the belt winding direction into engagement with the adjacent finger of the middle disk said spring urging the middle disk in the belt winding direction and urging the lock bar into locking position when unwinding tension is applied to the belt.
Claim 22
Dependent Claim
65 words
The retractor of claim 14 wherein the finger on said middle disk which engages the pin that limits unwinding movement of the middle disk includes a notch formed to receive said pin which limits unwinding movement when the middle disk is urged to move in an unwinding direction, the notch serving to prevent movement of the lock bar into locking engagement with the ratchet teeth.
Claim 23
Dependent Claim
83 words
The retractor of claim 14, a reset mechanism mounted on said shaft for holding said lock bar out of engagement with the ratchet teeth when the belt approaches its fully wound condition, said reset mechanism including gear means movable in response to rotation of the shaft and cam means movable by said gear means in a path to engage said lock bar extension and hold the lock bar out of engagement with the ratchet teeth when the belt approaches its fully wound position.
Claim 24
Dependent Claim
53 words
The retractor of claim 16 wherein said cam means is mounted on one of the gears and said gear means includes two gears which reduce the rotational speed of the shaft such that the cam means only restricts movement of tHe lock bar when the belt is substantially fully wound on the reel.
Claim 25
Dependent Claim
156 words
The retractor of claim 16 wherein said shaft has an eccentrically mounted section; and said gear means includes an inner gear mounted on said eccentric section, the inner gear being attached to said support in a manner to restrain the gear from rotation while permitting it to move in the orbital path produced by the rotation of said eccentric section, said inner gear including a plurality of radially extending teeth, and an outer gear rotatably and concentrically mounted on the shaft, a plurality of teeth forming a ring surrounding the teeth on said inner gear and arranged and shaped so that the inner gear teeth mesh with the outer gear teeth as the inner gear moves in its orbital path, the outer gear having more teeth than the inner gear so that it is rotated as the shaft rotates but at a reduced rate of speed, and said cam means is rotated by said outer gear.
Claim 26
Dependent Claim
223 words
In a retractor having locking means for preventing unwinding of a flexible element such as a belt on a reel, an improved means for rendering the locking means ineffective in a predetermined zone of the unwinding movement of the belt comprising: an inner gear having a ring of outwardly extending teeth; an outer gear having teeth dimensioned to mesh with the teeth of the inner gear and arranged in a ring surrounding the inner gear teeth with the outer gear having more teeth than the inner gear, the gears being rotatably mounted on the shaft of the belt reel, said shaft having means for eccentrically mounting the gears with respect to each other, means restraining one of the gears from rotation while the other is permitted to rotate, the diameter of the ring formed in the outer gear being such that the orbital movement produced by the eccentric mounting causes the teeth of the inner gear to mesh with the teeth of the outer gear during the orbital movement, said orbital movement causing rotational movement of the gear which is free to rotate at a rotational speed which is less than that of the shaft; and cam means moved by said rotating gear and located so that the movement of the cam is used to render the lock means ineffective in said zone.
Claim 27
Dependent Claim
223 words
In a retractor having locking means for preventing unwinding of a flexible element such as a belt on a reel, an improved means for rendering the locking means ineffective in a predetermined zone of the unwinding movement of the belt comprising: an inner gear having a ring of outwardly extending teeth; an outer gear having teeth dimensioned to mesh with the teeth of the inner gear and arranged in a ring surrounding the inner gear teeth with the outer gear having more teeth than the inner gear, the gears being rotatably mounted on the shaft of the belt reel, said shaft having means for eccentrically mounting the gears with respect to each other, means restraining one of the gears from rotation while the other is permitted to rotate, the diameter of the ring formed in the outer gear being such that the orbital movement produced by the eccentric mounting causes the teeth of the inner gear to mesh with the teeth of the outer gear during the orbital movement, said orbital movement causing rotational movement of the gear which is free to rotate at a rotational speed which is less than that of the shaft; and cam means moved by said rotating gear and located so that the movement of the cam is used to render the lock means ineffective in said zone.
Claim 28
Dependent Claim
64 words
The retractor of claim 19 wherein the speed reduction obtained by the gear mechanism and the circumferential length of the cam means on the outer gear are selected such that the cam means functions to render the lock means ineffective during a single zone of operation of the retractor but does not interfere with the locking function during the remaining operation of the retractor.
Claim 29
Dependent Claim
118 words
The retractor of claim 19 wherein said inner gear is eccentrically mounted on the shaft while the outer gear is concentrically mounted on the shaft, said inner gear is restrained from rotation but is permitted to move in its orbital path produced by the eccentric mounting whereby the orbital movement of the inner gear produces rotation of the outer gear, one cycle of the inner gear being moved through its orbital path producing a fraction of one revolution of the outer gear, the numerator of said fraction being the difference between the number of teeth in the inner gear and the outer gear and the denominator of the fraction being the number of teeth in the outer gear.
Claim 30
Dependent Claim
118 words
The retractor of claim 21 wherein: the teeth of said inner gear are mounted on a plate which extends in a plane adjacent the plane of the gear teeth and the plate includes a portion which extends radially outwardly from the gear teeth with said portion having a restraining pin extending parallel to the axis of the gear and received in an elongated slot which restrains rotation of the gear but permits orbital movement of the gear; and said outer gear is in the form of a cup shaped member which fits over the teeth of the inner gear and mates with the plate of the inner gear to thereby form an enclosed housing for the gear teeth.
Claim 31
Dependent Claim
144 words
In a seat belt retractor having locking means for preventing unwinding of a flexible element such as a belt on a reel, an improved means for rendering the locking means ineffective in a predetermined zone of unwinding movement of the belt comprising: 1 a first gear cycically driven by the rotation of said reel and a second gear rotated by said first gear; cam means driven by the second gear to render the locking means ineffective in said zone; and said gears being constructed and arranged to reduce the speed of rotation of the second gear to a fraction of that of one cycle of the first gear, the numerator of said fraction being the difference between the number of teeth in the first gear and the second gear and the denominator of the fraction being the number of teeth in the second gear.
Claim 32
Dependent Claim
144 words
In a seat belt retractor having locking means for preventing unwinding of a flexible element such as a belt on a reel, an improved means for rendering the locking means ineffective in a predetermined zone of unwinding movement of the belt comprising: 1 a first gear cycically driven by the rotation of said reel and a second gear rotated by said first gear; cam means driven by the second gear to render the locking means ineffective in said zone; and said gears being constructed and arranged to reduce the speed of rotation of the second gear to a fraction of that of one cycle of the first gear, the numerator of said fraction being the difference between the number of teeth in the first gear and the second gear and the denominator of the fraction being the number of teeth in the second gear.
Claim 33
Dependent Claim
42 words
The retractor of claim 23 including means responsive to interruption of the initial unwinding movement for initiating operation of said locking means, and said cam means functions to render the locking means ineffective when said belt is in the fully retracted position.
Claim 34
Dependent Claim
178 words
A safety belt retractor including a support, a reel having a shaft rotatably mounted on the support, a belt mounted on the reel, a retraction spring mounted on the support urging the reel in a direction to wind the belt on the reel, lock means mounted on the support being movable into engagement with the reel to prevent unwinding of the belt, a disk rotatably mounted with respect to the reel, friction means interconnecting the disk and the reel to cause rotation of the disk in response to rotation of the reel, a pair of stops cooperating with the disk for limiting rotation of the disk to pivotal movement between the stops, spring means for urging the disk against the stop which limits movement in the belt winding direction, and means interconnecting the disk to the lock means in a manner such that the rotation of the disk in the winding direction caused by said spring means initiates operation of the lock means after the belt has been initially unwound a desired amount and the unwinding movement interrupted.
Claim 35
Dependent Claim
178 words
A safety belt retractor including a support, a reel having a shaft rotatably mounted on the support, a belt mounted on the reel, a retraction spring mounted on the support urging the reel in a direction to wind the belt on the reel, lock means mounted on the support being movable into engagement with the reel to prevent unwinding of the belt, a disk rotatably mounted with respect to the reel, friction means interconnecting the disk and the reel to cause rotation of the disk in response to rotation of the reel, a pair of stops cooperating with the disk for limiting rotation of the disk to pivotal movement between the stops, spring means for urging the disk against the stop which limits movement in the belt winding direction, and means interconnecting the disk to the lock means in a manner such that the rotation of the disk in the winding direction caused by said spring means initiates operation of the lock means after the belt has been initially unwound a desired amount and the unwinding movement interrupted.
Claim 36
Dependent Claim
68 words
The retractor of claim 25 wherein said lock means comprises a lock bar pivotally mounted on said support movable into and out of engagement with the reel and said interconnecting means includes a lock bar extension arm mounted on one end of the bar, said stops being formed on said lock bar extension arm, and said spring means urges the lock bar into locking position with the reel.
Claim 37
Dependent Claim
34 words
The retractor of claim 26 including a disk fixed to rotate with the reel positioned adjacent said pivotal disk with a layer of viscous material between the two disks for driving the pivotal disk.
Claim 38
Dependent Claim
85 words
In a seat belt having a belt wound on a reel under the urging of a spring or other power means and lock means for preventing unwinding of the belt, a method of automatically preventing additional unwinding of the belt after the belt has been initially unwound a desired amount comprising the steps of sensing the stopping of the initial unwinding rotation of the reel; and initiating operation of the lock means solely in response to the sensing of the stopping of the unwinding rotation.
Claim 39
Dependent Claim
85 words
In a seat belt having a belt wound on a reel under the urging of a spring or other power means and lock means for preventing unwinding of the belt, a method of automatically preventing additional unwinding of the belt after the belt has been initially unwound a desired amount comprising the steps of sensing the stopping of the initial unwinding rotation of the reel; and initiating operation of the lock means solely in response to the sensing of the stopping of the unwinding rotation.
Claim 40
Dependent Claim
152 words
In a seat belt having a belt wound on a reel under the urging of a spring or other power means and lock means for preventing unwinding of the belt, a method of automatically preventing additional unwinding of the belt after the belt has been initially unwound a desired amount comprising the steps of: sensing the stopping of the initial unwinding rotation of the reel; initiating operation of the lock means in response to the sensing of the stopping of the unwinding rotation; driving a disk in the belt unwinding direction through rotation of the reel against the urging of a second spring, the disk being mounted so it can rotate independently of the reel in response to the urging of the second spring; and initiating operation of the lock means through the movement of said disk caused by the second spring upon interruption of the initial unwinding rotation of the reel.
Claim 41
Dependent Claim
152 words
In a seat belt having a belt wound on a reel under the urging of a spring or other power means and lock means for preventing unwinding of the belt, a method of automatically preventing additional unwinding of the belt after the belt has been initially unwound a desired amount comprising the steps of: sensing the stopping of the initial unwinding rotation of the reel; initiating operation of the lock means in response to the sensing of the stopping of the unwinding rotation; driving a disk in the belt unwinding direction through rotation of the reel against the urging of a second spring, the disk being mounted so it can rotate independently of the reel in response to the urging of the second spring; and initiating operation of the lock means through the movement of said disk caused by the second spring upon interruption of the initial unwinding rotation of the reel.
Claim 42
Dependent Claim
25 words
The retractor of claim 23 including means for driving said first gear in an orbital path and means for restraining the first gear from rotating.
Claim 43
Dependent Claim
49 words
The retractor of claim 30 wherein said first gear has a ring of outwardly extending teeth and said second gear surrounds the first gear and has a ring of inwardly extending teeth that mesh with the teeth of the first gear as it is moved in its orbital path.