External shift mechanism for manual shift transmissions of automobiles
A technology of shifting mechanism and gearbox, applied in vehicle parts, mechanical equipment, components with teeth, etc., can solve problems such as increasing production cost, vibration noise, etc., and achieve space saving, noise reduction, and simple lever length. Effect
Inactive Publication Date: 2017-10-10
GM GLOBAL TECH OPERATIONS LLC
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Problems solved by technology
[0005] On the one hand, this construction has the disadvantage that if no noise-reducing measures are taken at the end of the cylinder of the spring, the driver of the vehicle can clearly hear the sound of the cylinder end colliding with the bump
In this case, if the noise reduction measures are taken on the end of the column, although the collision noise of the end of the column on the protrusion is reduced, the production cost will be increased
In addition, the elastic body of the helical torsion spring bearing the gear selector causes vibration noise between the individual spring coils when the gear lever is moved or released
Method used
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Embodiment Construction
[0034] figure 1 A perspective view is shown of the external shifting mechanism 10 with a bracket 11 in which, in the present exemplary embodiment, a non-visible universal ball joint is arranged for rotatably mounting the gearshift lever 12 . An invisible ball arranged inside the bracket is fixedly connected to the shift lever 12, from which a pin 13 protrudes radially, and the free end of the pin 13 engages with a receiving hole 15 belonging to the In this embodiment, it is an L-shaped gear selection lever 14 . The selector lever 14 is pivotable about an axis 16 which is at least substantially transverse to the longitudinal extension of the external shifting mechanism 10 .
[0035] When the shift lever 12 rotates around the axis extending longitudinally of the external shifting mechanism 10, the free end of the pin 13 moves upward or downward through the cooperation of the pin 13 connected to the shift lever 12 and the selector lever 14 , thereby pivoting the selector lever ...
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An external shift mechanism (10) for a manual shift gearbox for automobiles, in particular for cars, having a shift lever movable in the degree of freedom of shifting and selection of gears (12), the gear selector lever (14) that can rotate around the shaft (16), and the gear selector lever is connected with the shift lever (12), so that the gear selector lever (14) can follow the shift lever in the degree of freedom of gear selection and has at least one first elastic element (33), which applies a first force to the gear selector lever (14), thereby exerting a force on the gear selector lever (12) to place it in the selector position The loading effect at the middle position of the blocking degree of freedom. The external shifting mechanism (10) has a second elastic element (33) that cooperates with the gear selection lever (14), and the second elastic element is directed towards the gear selection lever (14) in the middle position of the gear lever (12). ) exerts a second force that counteracts the first force of the first elastic element (33).
Description
technical field [0001] The invention relates to an external shifting mechanism for a manual shift gearbox for automobiles, in particular for cars, having a shift lever movable in the degree of freedom of shifting and selection of gears (also known as "shift-selector lever"), a selector lever that can rotate around an axis, and the selector lever is connected to the gear lever so that the selector lever is connected to the gear selector in terms of freedom of selection The gear shift lever is driven and has at least one first elastic element, which exerts a first force on the gear selector lever. Background technique [0002] This type of external shifting mechanism consists of a traditional form of gear lever movable in two degrees of freedom within a support and the position of the gear lever is determined by two cables connected to the manual shift gearbox in which The upper gear is engaged. [0003] For most external gearshifts, the selector lever is mounted in a univer...
Claims
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IPC IPC(8): F16H59/02B60K20/02
CPCF16H59/04F16H59/02F16H2059/0295
Inventor S.布鲁德S.弗洛伦兹
Owner GM GLOBAL TECH OPERATIONS LLC