Patent ID: 6308586
Filing Date: 2001-10-30
Classification: F16H,Y10T

Abstract:
A transmission gear with the steplessly adjustable translation comprisinga drive shaft (4);a driven shaft (37);a first gear transmission unit (I) includinga first force transmission means connected to the drive shaft wherein the first force transmission means transforms a first uniform rotary motion of the drive shaft into a first uniform translation motion during a first force transmission phase;a first changeable translation device (48) connected to the first force transmission means, wherein the first changeable translation device converts the first uniform translation motion into a second uniform translation motion with a speed depending on a chosen value of a translation setting during the first force transmission phase while the translation setting is maintained at the chosen value;a second force transmission means (14) connected to the first changeable translation device (48) and including a first cam transmission (11, 12, 13, 49, 50) and wherein the second force transmission means transforms the second uniform translation motion into a second uniform rotary motion during the first force transmission phase while the translation setting is maintained at the chosen value;a first switchable or automatically switching coupling (51) connected to the second force transmission means (14) and to the driven shaft (37), wherein the first switching coupling transfers the second uniform rotary motion to the driven shaft during the first force transmission phase while the translation setting is maintained at the chosen value;a second gear transmission unit (II) includinga third force transmission means (1a) connected to the drive shaft (4) wherein the third force transmission means transforms the first uniform rotary motion of the drive shaft into a third uniform translation motion during a second force transmission phase;a second changeable translation device (48a) connected to the third force transmission means (1a), wherein the second changeable translation device converts the third uniform translation motion into a fourth uniform translation motion with a speed depending on the chosen value of the translation setting during the second force transmission phase while the translation setting is maintained at the chosen value;a fourth force transmission means (14a) connected to the second changeable translation device (48a) and including a second cam transmission (11a, 12a, 13a, 49a, 50a) and wherein the fourth force transmission means transforms the fourth uniform translation motion into a third uniform rotary motion during the second force transmission phase while the translation setting is maintained at the chosen value;a second switchable or automatically switching coupling (51a) connected to the fourth force transmission means (14a) and to the driven shaft (37), wherein the second switching coupling transfers the third uniform rotary motion to the driven shaft during the second force transmission phase while the translation setting is maintained at the chosen value;wherein the rotary motion of the drive shaft (4) is sequentially and intermittently transferred to the driven shaft (37) by the first gear transmission unit (I) during the first force transmission phase and, respectively, by the second gear transmission unit (II) during the second force transmission phase.