Shifting linkage for shifting change-speed transmissions

Claim 2

A shifting linkage for vehicles having a change-speed transmission and including a shifting lever means for shifting the transmission, the shifting lever means being supported in a portion of the vehicle accommodating the driver, and telescopic means for connecting the shift lever means with the transmission, the telescopic means being operable to be locked in a contracted position, characterized in that the telescopic means includes at least one inner telescopic member and at least one outer telescopic member, one of said inner and outer telescopic members being operatively connected with a part pivotally engaging at the shifting lever means, the other of said telescopic members being operatively connected with the change-speed transmission, and in that the locking action of the telescopic means in the contracted position takes place between said part and the other telescopic member.

Claim 3

A shifting linkage according to claim 1, characterized in that said one telescopic member is the inner telescopic member and said other telescopic member is the outer telescopic member.

Claim 4

A shifting linkage according to claim 2, characterized in that the vehicle is a truck having tiltable driver cab including a cab floor, and in that the shifting lever means is supported in a part of the driver cab floor.

Claim 5

A shifting linkage according to claim 2, characterized in that a return spring is arranged in the inner telescopic member on which is supported the locking means by way of a second abutment means.

Claim 6

A shifting linkage according to claim 4, characterized in that a locking means is pivotally supported in the inner telescopic member, the inner tElescopic member has two fork arms receiving a transversely extending pivot pin on which the shifting lever is supported, a leg spring serves as return spring which is disposed about the pivot pin, the leg portions of the leg spring being supported at fork arms and at the locking means.

Claim 7

A shifting linkage for vehicles having a driver cab including a cab floor, a shifting lever means supported in the driver cab, and telescopic means provided in the connection of the shifting linkage and operable to be locked in a contracted position, characterized in that the telescopic means includes an inner telescopic member and an outer telescopic member, said inner telescopic member being operatively connected with a part pivotally engaging at the shifting lever means, the locking action taking place between said part and the outer telescopic member, and in that the shifting lever means is supported in a ball-joint bearing support in the driver cab floor and is extended beyond this bearing support, the inner telescopic member engages at the shifting lever extension pivotal about a cross axis, and a locking means is pivotally supported simultaneously in the inner telescopic member about a further cross axis.

Claim 8

A shifting linkage for vehicles having a driver cab including a cab floor, a shifting lever means supported in the driver cab, and telescopic means provided in the connection of the shifting linkage and operable to be locked in a contracted position, characterized in that the telescopic means includes an inner telescopic member and an outer telescopic member, said inner telescopic member being operatively connected with a part pivotally engaging at the shifting lever means, the locking action taking place between said part and the outer telescopic member, and in that the shifting lever means is supported in a ball-joint bearing support in the driver cab floor and is extended beyond this bearing support, the inner telescopic member engages at the shifting lever extension pivotal about a cross axis, and a locking means is pivotally supported simultaneously in the inner telescopic member about a further cross axis.

Claim 9

A shifting linkage according to claim 6, characterized in that the inner telescopic member has two fork arms receiving a transversely extending pivot pin on which the shifting lever extension is supported by means of an eye portion, and in that a further transversely extending pivot pin for the accommodation of the locking means is arranged in said fork arms somewhat below the axis of the telescopic means.

Claim 10

A shifting linkage according to claim 7, characterized in that the outer telescopic member includes two mutually opposite lateral lugs, and in that the fork arms at the inner telescopic member are extended beyond the outer telescopic member and are provided within this area with slots into which engage the lugs.

Claim 11

A shifting linkage according to claim 8, characterized in that the slots surround the lugs substantially without play, are extended beyond the lugs and are enlarged mouth-like within this area.

Claim 12

A shifting linkage according to claim 9, characterized in that the locking means engages with a pawl portion in a corresponding counter hook at the outer telescopic member and includes an abutment means disposed between the fork arms which cooperates with a disengaging cam at the shifting lever.

Claim 13

A shifting linkage according to claim 10, characterized in that the shifting lever extension forms the disengaging cam itself underneath the pivotal connection of the inner telescopic member.

Claim 14

A shifting linkage according to claim 11, characterized in that a return spring is arranged in the inner telescopic member on which is supported the locking means by way of a second abutment means.

Claim 15

A shifting linkage according to claim 12, characterized in that a leg spring serves as return spring which is disposed about the pivot pin, the leg portions of the leg spring being supported at the fork arms and at the locking means.

Claim 16

A shifting linkage for vehicles including a shifting lever means supported in a portion of the vehicle accommodating the driver, and telescopic means provided in the connection of the shifting linkage and operable to be locked in a contracted position, characterized in that the telescopic means includes an inner telescopic member and an outer telescopic member, said inner telescopic member being operatively connected with a part pivotally engaging at the shifting lever means, the locking action taking place between said part and said outer telescopic member, and in that the outer telescopic member includes two mutually opposite lateral lugs, and fork arms provided at the inner telescopic member are extended beyond the outer telescopic member and are provided within this area with slots into which engage the lugs.

Claim 17

A shifting linkage for vehicles including a shifting lever means supported in a portion of the vehicle accommodating the driver, and telescopic means provided in the connection of the shifting linkage and operable to be locked in a contracted position, characterized in that the telescopic means includes an inner telescopic member and an outer telescopic member, said inner telescopic member being operatively connected with a part pivotally engaging at the shifting lever means, the locking action taking place between said part and said outer telescopic member, and in that the outer telescopic member includes two mutually opposite lateral lugs, and fork arms provided at the inner telescopic member are extended beyond the outer telescopic member and are provided within this area with slots into which engage the lugs.

Claim 18

A shifting linkage according to claim 14, characterized in that the slots surround the lugs substantially without play, are extended beyond the lugs and are enlarged mouth-like within this area.

Claim 19

A shifting linkage for vehicles having a driver cab including a cab floor, a shifting lever means supported in the driver cab, and telescopic means provided in the connection of the shifting linkage and operable to be locked in a contracted position, characterized in that the telescopic means includes at least one inner telescopic member and at least one outer telescopic member, said inner telescopic member being operatively connected with a part pivotally engaging at the shifting lever means, the locking action taking place between said part and the outer telescopic member, the shifting lever means is supported in a ball-joint bearing support in the driver cab floor and is extended beyond this bearing support, the inner telescopic member engages at the shifting lever extension pivotal about a cross axis, a locking means is pivotally supported simultaneously in the inner telescopic member about a further cross axis, the inner telescopic member has two fork arms receiving a transversely extending pivot pin on which the shifting lever extension is supported by means of an eye portion, a further transversely extending pivot pin for the accommodation of the locking means is arranged in said fork arms somewhat below the axis of the telescopic means, and the locking means engages with a pawl portion in a corresponding counter hook at the outer telescopic member and includes an abutment means disposed between the fork arms which cooperates with a disengaging cam at the shifting lever.

Claim 20

A shifting linkage for vehicles having a driver cab including a cab floor, a shifting lever means supported in the driver cab, and telescopic means provided in the connection of the shifting linkage and operable to be locked in a contracted position, characterized in that the telescopic means includes at least one inner telescopic member and at least one outer telescopic member, said inner telescopic member being operatively connected with a part pivotally engaging at the shifting lever means, the locking action taking place between said part and the outer telescopic member, the shifting lever means is supported in a ball-joint bearing support in the driver cab floor and is extended beyond this bearing support, the inner telescopic member engages at the shifting lever extension pivotal about a cross axis, a locking means is pivotally supported simultaneously in the inner telescopic member about a further cross axis, the inner telescopic member has two fork arms receiving a transversely extending pivot pin on which the shifting lever extension is supported by means of an eye portion, a further transversely extending pivot pin for the accommodation of the locking means is arranged in said fork arms somewhat below the axis of the telescopic means, and the locking means engages with a pawl portion in a corresponding counter hook at the outer telescopic member and includes an abutment means disposed between the fork arms which cooperates with a disengaging cam at the shifting lever.

Claim 21

A shifting linkage according to claim 16, characterized in that the shifting lever extension forms the disengaging cam itself underneath the pivotal connection of the inner telescopic member.

Claim 22

A shifting linkage for vehicles including a shifting lever means supported in a portion of the vehicle accommodating the drier, and telescopic means provided in the connection of the shifting linkage and operable to be locked in a contracted position, characterized in that the telescopic means includes an inner telescopic member and an outer telescopic member, said inner telescopic member being operatively connected with a part pivotally engaging at the shifting lever means, the locking action taking place between said part and said outer telescopic member, and in that a locking means engages with a pawl portion in a corresponding counter hook at the outer telescopic member and includes an abutment means which cooperates with a disengaging cam at the shifting lever.

Claim 23

A shifting linkage for vehicles including a shifting lever means supported in a portion of the vehicle accommodating the drier, and telescopic means provided in the connection of the shifting linkage and operable to be locked in a contracted position, characterized in that the telescopic means includes an inner telescopic member and an outer telescopic member, said inner telescopic member being operatively connected with a part pivotally engaging at the shifting lever means, the locking action taking place between said part and said outer telescopic member, and in that a locking means engages with a pawl portion in a corresponding counter hook at the outer telescopic member and includes an abutment means which cooperates with a disengaging cam at the shifting lever.

Claim 24

A shifting linkage for vehicles having a driver cab including a cab floor, a shifting lever means supported in the driver cab, and telescopic means provided in the connection of the shifting linkage and operable to be locked in a contracted position, characterized in that the telescopic means includes an inner telescopic member and an outer telescopic member, one of said telescopic members being operatively connected with a part pivotally engaging at the shifting lever means, the locking action taking place between said part and the other telescopic member, and in that the shifting lever means is suported in a ball-joint bearing support in the driver cab floor and is extended beyond this bearing support, the inner telescopic member engages at the shifting lever extension pivotal about a cross axis, and a locking means is pivotally supported simultaneously in the inner telescopic member about a further cross axis.

Claim 25

A shifting linkage for vehicles having a driver cab including a cab floor, a shifting lever means supported in the driver cab, and telescopic means provided in the connection of the shifting linkage and operable to be locked in a contracted position, characterized in that the telescopic means includes an inner telescopic member and an outer telescopic member, one of said telescopic members being operatively connected with a part pivotally engaging at the shifting lever means, the locking action taking place between said part and the other telescopic member, and in that the shifting lever means is suported in a ball-joint bearing support in the driver cab floor and is extended beyond this bearing support, the inner telescopic member engages at the shifting lever extension pivotal about a cross axis, and a locking means is pivotally supported simultaneously in the inner telescopic member about a further cross axis.

Claim 26

A shifting linkage according to claim 19, characterized in that the inner telescopic member has two fork arms receiving a transversely extending pivot pin on which the shifting lever extension is supported by means of an eye portion, and in that a further transversely extending pivot pin for the accommodation of the locking means is arranged in said fork arms somewhat below the axis of the telescopic means.

Claim 27

A shifting arrangement for vehicles including a change-speed transmission, the arrangeMent comprising: a shifting lever means for selectively shifting the speeds of the transmission, connecting means for connecting said shifting lever means with the transmission including a telescopic assembly having at least two telescopic members, one end of said assembly being connected with said shifting lever means and the other end of said assembly being operatively connected with the transmission, said telescopic assembly having a contracted position and an extended position, and means for selectively locking said telescopic assembly in said contracted position.

Claim 28

A shifting arrangement for vehicles including a change-speed transmission, the arrangeMent comprising: a shifting lever means for selectively shifting the speeds of the transmission, connecting means for connecting said shifting lever means with the transmission including a telescopic assembly having at least two telescopic members, one end of said assembly being connected with said shifting lever means and the other end of said assembly being operatively connected with the transmission, said telescopic assembly having a contracted position and an extended position, and means for selectively locking said telescopic assembly in said contracted position.

Claim 29

An arrangement according to claim 21, further comprising a ball-joint bearing support for supporting the shifting lever means in the vehicle, extension means for extending the shifting lever means beyond the beaaring support, and means for connecting said extension means to said telescopic assembly.

Claim 30

An arrangement according to claim 22, wherein one of said at least two telescopic members includes two fork arms which surround said extension means, said means for connecting said extension means to said telescopic assembly including a pivot pin received by said fork arms and said extension means.

Claim 31

An arrangement according to claim 23, wherein the other of said at least two telescopic members includes outwardly projecting lug means, said two fork arms being provided with means for accommodating said lug means when said telescopic assembly is in the contracted position.

Claim 32

An arrangement according to claim 24, wherein said locking means includes a pawl portion, and means are provided for pivotally mounting said pawl portion on one of said at least two telescopic members.

Claim 33

An arrangement according to claim 25, wherein said locking means further includes a counter hook portion for selectively receiving said pawl portion, said counter hook portion being provided on the other of said at least two telescopic members.

Claim 34

An arrangement according to claim 26, wherein means are provided for normally biasing said locking means into a locking position.

Claim 35

An arrangement according to claim 27, wherein a pressure plate is provided for said biasing means, a cam means is provided on said pawl portion for selective engagement with said pressure plate, and wherein said extension means of said shifting lever means includes a cam portion selectively engageable with said cam means to cause disengagement of said cam means from said pressure plate.