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1. WO1988003999 - TRANSMISSION UNIDIRECTIONNELLE REVERSIBLE

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

WHAT IS CLAIMED IS:
1. A transmission comprising:
an input member;
an output member;
first means rotating in a first direction for directly driving said output member in a first direction in response to a first direction of rotation of said input member, said first means rotating in a second direction and not driving said output member in response to a second direction of rotation of said input member;
second means rotating in a first direction for directly driving said output member in said first direction in response to the second direction of
rotation of said input member, said second means
rotating in a second direction and not driving said output member in response to the first direction of rotation of said input member; and
third means for changing the rotation of said output member to a second direction by changing said first means to rotate in said second direction for directly driving said output member in said second direction in response to said second direction of rotation of said input member and said first means to rotate in said first direction and not driving said output member in response to the first direction of rotation of said input member, and by changing said second means to rotate in said second direction for directly driving said output member in said second direction in response to said first direction of
rotation of said input member and said second means to rotate in said first direction and not driving said output member in response to the second direction of rotation of said input member.
2. A transmission as in Claim 1, including a plurality of output means transverse to said input member, each of said output means having a reversing means for determining the direction of rotation
independently from other output member.
3. A transmission as in Claim 1, including an intermediate means for rotating said first means in a first direction and rotating said second means in a second direction in response to said first direction of rotation of said input member, and for rotating said first means in the second direction and said second means in the first direction in response to said second direction of rotation of said input member.
4. A transmission as in Claim 3, wherein said input member is connected to said first means and drives said second means via said intermediate means.
5. A transmission as in Claim 4, wherein said input member includes a handle extending from said first means and said output member includes one of attachment means for attaching a screwdriver and attachment means for attaching nutdriver.

6. A transmission as in Claim 4, including holding means for enabling said intermediate means to cause said second means to be rotated by said input member in the opposite rotational direction of said input member and for disabling said intermediate means thereby not causing said second means to be rotated by said input member in the opposite rotational direction of said input member.
7. A transmission as in Claim 6, wherein said intermediate means includes at least one pinion between said first and second means and includes an attachment means for attaching said holding means to an external source of rotation to drive said second means when the input member is prevented from rotating in the direction of rotation of said holding means.
8. A transmission as in Claim 1, including engaging means interconnecting said first and second means to said output member and having a first position for rotating said output member in said first direction in response to rotation of said first means in a first direction and rotation of said second means in said first direction, and for allowing free rotation of said first means and said second means in said second
direction;
said engaging means having a second position for rotating said output member in said second direction in response to rotation of said first means in a second direction and rotation of said second means in said second direction, and for allowing free rotation of said first means and said second means in said first
direction;
said third means controlling said position of said engaging means.
9. A transmission as in Claim 8, wherein said first means includes a first disk and said second means includes a second disk, each of said disks having gripping surfaces for engaging said engaging means.
10. A transmission as in Claim 9, wherein said input member is connected to said first disk and
including at least one intermediate pinion
interconnecting said first disk and said second disk to transfer the motion of said input member from said first disk to said second disk.
11. A transmission as in Claim 10, including a holding means connected to said pinion for preventing said pinion from being rotated in the rotational plane of the disks to cause said second means to be rotated in the opposite rotational direction of said input member when activated and for permitting said pinion to be rotated in the rotational plane of the disks thereby not causing said second means from being, rotated in the opposite rotational direction of said input member when deactivated.

12. A transmission as in Claim 9, wherein said engaging means includes:
a central disk having a first surface facing toward said first disk and a second surface facing toward said second disk;
said first and second surfaces each including at least one roller indentation for receiving engaging rollers; and
a reversing means in said first position of the engaging means for wedging said rollers between the roller indentations of said central disk and said first and second disks in response to rotation of said first and second disks in said first direction and for
allowing free rotation of said first and second disks rotating in said second direction thereby rotating said output member in said first direction irrespective of the direction of rotation. of said input member, and in said second position of the engaging means for wedging said rollers between the roller indentations of said central disk and said first and second disks in response to rotation of said first and second disks in said second direction and for allowing free rotation of said first and second disks rotating in said first direction, thereby rotating said output member in said second direction irrespective of the direction of rotation of said input member.

13. A transmission as in Claim 12, wherein said first disk is coaxial with said second disk, each of said first disk and said second disk having a gripping surface facing toward the other disk; and wherein said central disk is axially adjacent and in between said first and second disks, said central disk having at least one roller indentation facing toward the gripping surface of each disk.
14. A transmission as in Claim 12, wherein said first and second disks are annular rings having
circumferential gripping surfaces, said annular rings being concentric to said central disk; and
wherein said central disk has at least one roller indentation on the circumference of the central disk facing each of said annular rings; and including
at least a first roller being in contact with said gripping surface of the first annular ring and at least a second roller being in contact with said
gripping surface of the second annular ring.
15. A transmission as in Claim 14, wherein said first and second disks are annular rings having annular gripping surfaces; and wherein said engaging means further comprises;
a circumferential groove in said central disk having a multi-face polygonal bottom;
a plurality of rollers, a pair of said rollers being associated with and contacting each face; and a first roller being in contact with said gripping surfaces of the first annular ring and a second roller being in contact with said gripping surface of the second annular ring.
16. A transmission as in Claim 9, wherein the input member is attached to one of said disks and said engaging means is disposed on said output member.
17. A transmission comprising:
an input member;
an output member;
a first concentric member concentric to said output member and attached to said input member;
a second concentric member concentric to said output member spaced from and in a parallel plane to said first concentric member;
at least one pinion engaging said first concentric member and said second concentric member;
a first pawl disposed on said output member, said first pawl being associated with said first
concentric member;
a second pawl disposed on said output member, said second pawl being associated with said second concentric member; and
reversing means having a first position for engaging each of said pawls with said concentric members in response to a first direction of rotation of said concentric members and for disengaging each of said pawls from said concentric members in response to a second direction of rotation of said concentric members and having a second position for engaging each of said pawls with said concentric members in response to a second direction of rotation of said concentric members and for disengaging each of said pawls from said
concentric members in response to a first direction of rotation of said concentric members, wherein said output member rotates in the direction in which the engaged concentric members rotate thereby rotating said output member in a single direction irrespective of the
rotation of said input member.
18. A transmission as in Claim 17, including a holding means connected to said pinion when activated for preventing said pinion from being rotated in the rotational plane of the concentric members such that said second concentric member is caused to rotate in the opposite rotational direction of said input member and when deactivated for permitting said pinion to be rotated in the rotational plane of the concentric members thereby not causing said second concentric member to be rotated in the opposite rotational
direction of said input member.
19. A transmission as in Claim 17, including:
a gripping surface on each concentric member;
a first end of each pawl having a gripping surface for engaging said concentric members in response to a first direction of rotation of said concentric members, in said first "position of said reversing means; and
a second end of each pawl having a gripping surface for engaging said concentric members in response to a second direction of rotation of said concentric members, in said second position of said reversing means.

20. A transmission as in Claim 19, wherein said reversing means includes a cam means for urging said first end gripping surfaces of said first and second pawls against said concentric members for engaging the output member with the concentric members, in said first position of the reversing means; and for urging said second end gripping surfaces of said first and second pawls against said concentric members for engaging the output member with the concentric members, in said second position of the reversing means.
21. A transmission as in Claim 20, wherein said pawls are held on a fixed axis of rotation relative to said output member and wherein said cam means includes spring means on said output member for forcing said pawls to rotate around said fixed axis for engaging the output member with the concentric members, said first and second position for the reversing means being
changed by moving said spring means from a position towards one end of said pawls to a position towards the other end of said pawls.

22. A transmission as in Claim 19, wherein:
said reversing means includes at least one groove in said output member in which said pawls are disposed;
said groove having a first cam surface
adjacent to the first end of the pawls and a second cam surface on said output member adjacent the second end of said pawls;
said first cam surface in said first position of the reversing means, for engaging said first end of said first and second pawls and thereby urging said second end gripping surfaces of said first and second pawls against said concentric members for engaging the output member with the concentric members; and
said second cam surface in said second
position of the reversing means, for engaging said second end of said first and second pawls and thereby urging said first end gripping surface of said first and second pawls against said concentric members for
engaging the output member with the concentric members.

23. A transmission as in Claim 22, wherein said pawls are held on a movable axis of rotation wherein, in said first position of the reversing means, said axis is moved toward said first cam surface thereby positioning said first end of the pawls against said first cam surface urging said second end of said pawls to engage with said concentric members rotating in said first direction and, in said second position of the reversing means, said axis is moved toward said second cam surface thereby positioning said second end of said pawls against said second cam surface urging said first end of said pawls to engage with said concentric members rotating in said second direction.
24. A transmission comprising:
an input member;
an output member;
a first annular ring concentric to said output member and attached to said input member and having a gripping surface;
a second annular ring concentric to said output member spaced from and in a parallel plane to said first annular ring and having a gripping surface;
at least one pinion engaging said first annular ring and said second annular ring such that the first annular ring and second annular ring rotate in opposite directions;
at least one circumferential groove in said output member having a multi-faced polygonal bottom;
a plurality of rollers, a pair of said rollers being associated with and contacting each side of the polygonal face; a first roller being in contact with said gripping surface of the first annular ring and a second roller being in contact with said gripping
surface of the second annular ring; and wedging said rollers between the polygonal faces of said output member and said first and second annular rings in response to rotation of said first and second annular rings in said first direction and for allowing free rotation of said first and second annular rings rotating in said second direction thereby turning said output member in said first direction irrespective of the direction of rotation of said input member, and having a second position for wedging said rollers between said polygonal faces of said output member and said first and second annular rings in response to rotation of said first and second annular rings in said second direction and for allowing free rotation of said first and second annular rings rotating in said first direction thereby turning said output member in said second direction irrespective of the direction of rotation of said input member .
25. A transmission as in Claim 24, wherein said reversing means includes;
at least one ring groove included in the bottom faces of said circumferential groove in said output member;
a first roller ring associated with said first annular ring and a second roller ring associated with said second annular ring, each of said roller rings being rotatably mounted in said ring groove in between said ring groove and said annular rings;

a plurality of slots in said roller rings, one slot being associated with each side of the polygonal groove face, each slot having an associated roller disposed therein, said rollers positioned between said annular rings and said polygonal faces of the groove;
a roller ring positioning means for
positioning the roller rings in a first position for allowing wedging of said rollers between said annular rings and said sides of the polygonal groove only in response to the first direction of rotation of said first and second annular rings, and having a second position for allowing wedging of said rollers between said annular rings and said polygonal faces only in response to the second direction of rotation of said first and second annular rings.
26. A transmission as in Claim 25, wherein said roller ring positioning means includes:
a pin;
at least one pin slot in each roller ring in between two of the roller slots;
a longitudinal groove in an outer face of said output member for receiving said pin, said groove having a first side surface and a second side surface toward which said pin moves;
wherein said pin is placed toward said first side surface of the longitudinal groove in said first position of the reversing means, said pin preventing rotation of said roller rings relative to said output member and preventing said rollers from wedging between said annular rings and said output member in response to rotation of said first and second annular rings in said second direction, and said pin allowing the wedging of the rollers between said annular rings and said output member in response to rotation of said first and second annular rings in said first direction; and
wherein said pin is placed toward said second side surface of the longitudinal groove in said second position of the reversing" means, said pin preventing rotation of said roller rings relative to said output member and preventing said rollers from wedging between said annular rings and said output member groove in response to rotation of said first and second annular rings in said first direction, and said pin allowing the wedging of the rollers between said annular rings and said output member in response to the rotation of said first and second annular rings in said second direction. 27. A transmission comprising:
an input member;
an output member;
first means for driving said output member in a first direction in response to a first direction of rotation of said input member, said first means do not drive said output member in response to a second
direction of rotation of said input member;

second means for driving said output member in said first direction in response to the second direction or rotation of said input member, said second means do not drive said output member in response to the first direction of rotation of said input member;
reversing means disposed on said output member for changing the rotation of said output member to a second direction by changing said first means to drive said output member in said second direction in response to said second direction of rotation of said input member and said first means do not drive said output member in response to the first direction of rotation of said input member, and by changing said second means to drive said output member in said second direction in response to said first direction of rotation of said input member and said second means do not drive said output member in response to the second direction of rotation of said input member.
28. A transmission comprising:
an input member;
an output member;
first means rotating in a first direction for directly driving said output member in a first direction in response to a first direction of rotation of said input member, said first means rotating in a second direction and not driving said output member in response to a second direction of rotation of said input member;