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US 5,323,570 AGranted
Door opening cable system with cable slack take-up
AssigneeGeneral Motors Corporation
InventorsHoward W. Kuhlman, Jeffrey K. Joyner
Life of this patent
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AssigneeGeneral Motors Corporation
InventorsHoward W. Kuhlman, Jeffrey K. Joyner
Estimating the term…
A van door slidable in tracks (16, 18 and 20). An operating module is mounted inside the van adjacent center track 18. A front cable attached to drive pulley (144) extends through guide assembly (54) to hinge and roller assemble (26). A rear cable attached to drive pulley (136) extends through guide assembly (56) to hinge and roller assembly (26). The drive pulleys (136 and 144) each have a large diameter spiral cable groove (164), a small diameter cable groove (208) and a transition cable groove (210). A motor rotates the drive pulleys. The small diameter cable grooves drive the door when the door is in the forward portion of the tracks. The large diameter spiral cable grooves drive the door when the door is in the center and rear portions of the track. Fixed idler rollers (226 and 254) are positioned relative to the cable drive pulleys to insure that the total cable in the continuous cable loop is substantially the same when the cable is driven by the small diameter cable grooves as when the cable is driven by the large diameter spiral cable grooves. A cable tension system (220) maintains cable tension. A slack cable take-up pulley (174) on the drive pulley (136) takes up slack cable to set cable tension and is then locked in position.
A door opening cable system with a cable slack take-up including a vehicle, tracks mounted on the vehicle, a sliding door supported and guided by the tracks for sliding movement between a closed and latched position and an open position;
A door opening cable system with a cable slack take-up including a vehicle, tracks mounted on the vehicle, a sliding door supported and guided by the tracks for sliding movement between a closed and latched position and an open position;
A door opening cable system with a cable slack take-up including a vehicle, tracks mounted on the vehicle, a sliding door supported and guided by the tracks for sliding movement between a closed and latched position and an open position;
Dependencies are inferred from the claim text.