JP2008128465A - Operating device of transmission - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an operating device of a transmission which can improve suitable productivity on assembling work and has a certain assembling structure. <P>SOLUTION: In the operating device 1 of a transmission having a shift and selection shaft 3 which is retained on a casing and is possible for axial movement and turning around the shaft, an inner lever 4 which is integrally formed together with the shaft 3 and performs a selected operation by connecting with one of a plurality of fork shafts and performs the selected operation of the selected fork shaft, an interlock plate 5 which is relatively and rotatably retained on the shaft 3 and is connected with the rest of fork shafts not selected by synchronized with the selection operation, and an actuator plate 6 which prohibits turning of the interlock plate 5 at the time of its assembling, the interlock plate 5 also has an axially-extended lock member 51, and the actuator plate 6 has a plurality of claw members 62 which can make the lock member 51 axially move and grip the lock member 51 being irrotatable around the shaft. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an operation device for a vehicle transmission, and more particularly to an assembly structure of an operation device for a synchronous mesh transmission.

  As one type of vehicle transmission, there is a synchronous meshing type transmission that includes a plurality of transmission gear pairs, selects a gear pair by an actuator or manually, and meshes after synchronization. As this type of transmission operating device, for example, there is a shift mechanism of a manual transmission disclosed by the applicant of the present application in Patent Document 1. The shift mechanism of Patent Document 1 includes a shift and select shaft, a shift inner lever member, and an interlock member, and is manually operated.

  Here, the shift-and-select shaft is often held in the casing so as to move in the axial direction in response to the select operation and rotate around the shaft in response to the shift operation. The inner lever is formed integrally with the shift and select shaft, selectively engages with a plurality of fork shafts connected to the transmission gear pair by a selection operation, and engages the transmission gear pair by a shift operation. Further, the interlock plate has a role of engaging with the unselected fork shaft and preventing it from being erroneously operated. For this reason, the interlock plate is configured to move together with the inner lever in accordance with the shift operation, and to engage with the fork shaft that was not engaged with the inner lever. And when an inner lever rotates, an interlock plate is restrained so that it may not rotate.

Since the interlock plate is not restrained at the time of assembly and cannot be assembled when it is rotated, an actuator plate is used for the purpose of prohibiting the rotation and holding it in a normal position. The actuator plate has a claw member extending in the axial direction, and is fixed to the casing. The claw member is engaged with a locking member extending in the axial direction of the interlock plate, and only the movement in the axial direction is allowed and the rotation is prohibited. On the other hand, a gear mechanism is normally used to drive the shift and select shaft in the axial direction and around the shaft. The gear mechanism converts an operating force of an actuator motor or a human hand into a form suitable for the operation of the transmission. In many cases, the actuator plate also serves as a pressing member that holds the gear mechanism.
JP 2004-150571 A

  By the way, when assembling the operating device, the shift and select shaft, inner lever, and interlock plate are assembled in advance and assembled as assembly parts. First, the gear mechanism is placed on the casing and fixed while being pressed by the actuator plate. Then, these assembly parts were assembled. Then, as a structure in which a single claw member of the actuator plate enters between two parallel lock members of the interlock plate, the arrangement at the time of assembly is determined, and the convenience of work is achieved. However, the interlock plate which is not constrained at the time of assembly rotates, and the claw member may be disposed outside the lock member instead of between the lock members. That is, assembly workability was poor and productivity was low.

  The present invention has been made in view of the above background, and provides an operation device for a transmission having a reliable assembling structure capable of improving assembling workability and improving productivity.

  The transmission operating device according to the present invention includes a shift-and-select shaft that is held in a casing and capable of axial movement and rotation around the shaft, and a plurality of forks formed integrally with the shift-and-select shaft. An inner lever that engages with one of the shafts to perform a select operation and shifts the fork shaft selected by the rotation, and is held by the shift-and-select shaft so as to be relatively rotatable and synchronized with the select operation. In the operation device of the transmission, the interlock plate includes a shaft that engages with the remaining fork shaft that has not been selected, and an actuator plate that prohibits rotation of the interlock plate during assembly. The actuator plate has a locking member extending in the direction, and the actuator plate It characterized by having a plurality of claw members for clamping impossible direction movable and axially about the rotation.

  Further, it is preferable that the actuator plate also serves as a pressing member that holds at least a part of a gear mechanism that drives the shift and select shaft in the axial direction and around the shaft.

  The operating device of the present invention can be applied to a transmission that is operated by axial movement and rotation around an axis, and can be applied to, for example, a synchronous mesh transmission having a plurality of synchromesh mechanisms. . The select operation and shift operation of each fork shaft connected to the synchromesh mechanism can be performed by the shift and select shaft and the inner lever. The shift and select shaft can be held in the casing so as to move in the axial direction in response to a select operation and rotate around the shaft in response to a shift operation. The inner lever can be integrated with the shift and select shaft, selectively engaged with a plurality of fork shafts by a select operation, and driven by the shift operation to operate the synchromesh mechanism. Further, an interlock plate can be provided so as to engage with the remaining fork shaft that has not been selected by moving in the axial direction together with the shift-and-select shaft so as not to rotate around the shaft. .

  The present invention is characterized by the structure of the actuator plate that prohibits the rotation of the interlock plate during assembly. In other words, the interlock plate has a locking member extending in the axial direction, and the actuator plate has a plurality of claw members that clamp the locking member so that the locking member can be moved in the axial direction and cannot rotate about the axis when assembled. The locking member of the interlock plate can be formed, for example, by holding a rectangular plate material at a position away from the axial center in parallel with the long side in the axial direction. In addition, the actuator plate is mounted on the substrate so that the lock member is sandwiched from both sides with a space slightly larger than the short side width dimension of the lock member, for example, perpendicular to the shift and select axis. And two rectangular claw members that are erected. The number of lock members and claw members can be further increased.

  On the other hand, a gear mechanism for driving the shift and select shaft in the axial direction and around the shaft can be housed in the casing of the operating device. In addition to the claw member, a pressing member can be attached to the substrate of the actuator plate so as to hold at least a part of the gear mechanism. Alternatively, the gear mechanism can be held by the substrate itself.

  Next, the operation and action of the transmission operating device of the present invention configured as described above will be described. First, when the shift and select shaft and the inner lever move in the axial direction by the select operation, the lock member also slides in the axial direction to move between and disengages between the claw members, and the interlock plate also moves in the axial direction. Engage with the remaining fork shafts that were not selected. Next, when the shift and select shaft and the inner lever are rotated around the shaft by the shift operation, the interlock plate is constrained by other members and rotated in addition to the positional relationship between the lock member and the claw member. prohibited. Therefore, the interlock plate does not rotate, and the fork shaft that has not been selected can be locked.

  Further, in the assembly operation of the operating device, the rotation of the interlock plate is restricted by the claw member, so that the assembly operation is easy and the workability is good. That is, when assembling an assembly part including the interlock plate, the lock member abuts on the claw member and cannot be disposed at the normal position in a state where the interlock plate is rotated. . Since the rotation is corrected by holding the lock member between the claw members, the lock member can be reliably assembled to the correct structure, and the trouble of redoing does not occur.

  In the operation device for the transmission according to the present invention, the actuator plate is provided with a plurality of claw members for clamping the locking member of the interlock plate so that it can move in the axial direction and cannot rotate around the shaft. The assembly work of the assembly parts including the interlock plate was improved, and a reliable assembly structure was achieved.

  The best mode for carrying out the present invention will be described with reference to FIGS. FIG. 1 is a perspective view illustrating a transmission operating device according to an embodiment of the present invention. The operating device 1 according to the embodiment is configured by assembling a casing 2 with assembly parts including a shift and select shaft 3, an actuator plate 6, a gear mechanism, and two motors 81 and 82.

  The casing 2 is subjected to hole processing and seat mounting necessary for assembling various members, and is formed so as to be finally assembled to the transmission main body at a portion opened to the upper left in the drawing. The shift and select shaft 3 is erected substantially at the center of the casing 2, and the lower end in the figure is held in the casing 2 so as to be movable in the axial direction and rotatable around the axis, and the upper end in the figure protrudes outside the casing 2. The inner lever 4 is fixed by a bolt 41 near the center of the shift and select shaft 3 and is formed so as to selectively engage with the fork shaft on the transmission body side on the back surface in the figure. The interlock plate 5 moves in the axial direction together with the shift-and-select shaft 3 and rotates around the shaft, and is formed so as to engage with the remaining fork shafts not selected on the back surface in the figure. ing. Two locking members 51 parallel to the axial direction are provided on the right front surface of the interlock plate 5 in the drawing. The shift and select shaft 3, the inner lever 4, and the interlock plate 5 are assembled in advance to be assembled parts, and are assembled into the casing 2 at a time.

  As shown in the enlarged perspective view of FIG. 2, the actuator plate 6 is formed of a substrate 61, two claw members 62, and a pressing member 63. The substrate 61 is formed with a shaft hole 64 through which the shift and select shaft 3 passes and two fixing holes 65 for fixing. Two rectangular claw members 62 are erected from the upper end face in the drawing at right angles to the substrate 61. The two claw members 62 are parallel to each other, and the distance between them is slightly larger than the outer dimension of the two lock members 51. A pressing member 63 is erected from the upper end surface of the substrate 61 in the direction opposite to the claw member 62. As shown in FIG. 1, the actuator plate 6 is arranged such that the two claw members 62 sandwich the lock member 51, and the mounting hole 65 is fastened by the two bolts 66 to be fixed to the casing 2.

  A ring gear 71 and a final gear 72 are arranged in the space between the actuator plate 6 and the casing 2. The ring gear 71 is held so as not to come off by the pressing member 63 of the actuator plate 6, and the final gear 72 is held by the substrate 61. The ring gear 71 and the final gear 72 are driven by a shift motor 81 provided outside the casing 2, and are configured to drive a shift and select shaft around the axis. A select motor 82 provided outside the casing 2 is configured to drive a gear mechanism (not shown) to drive the shift and select shaft 3 in the axial direction.

  In assembling the operation device 1 of the embodiment, first, a gear mechanism such as the ring gear 71 and the final gear 72 is assembled to the casing 2, then the actuator plate 6 is fixed, and finally the assembly parts are axially viewed from the upper left in the figure. Insert and assemble. At this time, the assembly component can be rotated and assembled while adjusting to a normal state in which the two lock members 51 enter between the two claw members 62. The assembly cannot be performed when the lock member 51 is in contact with the claw member 62. By correcting the rotation of the assembly parts, the lock member 51 is clamped by the claw member 62 and can be assembled. Therefore, it can be reliably assembled into the correct structure, and the trouble of redoing does not occur.

  On the other hand, conventionally, the actuator plate 9 shown in the component enlarged view of FIG. 3 has been used. In the conventional actuator plate 9, a single rectangular claw member 92 is erected from the upper end surface of the substrate 61 in the figure, and this claw member 92 enters between the two lock members 51. It was. Therefore, there is a case where the claw member 92 is assembled in a state in which the lock 51 is slipped out of the lock 51 member by turning at a relatively small angle. The operating device 1 according to the embodiment can structurally reliably prevent assembly in a state where the actuator plate 9 is rotated.

It is a perspective view explaining the operating device of the transmission of the Example of this invention. It is an expansion perspective view explaining the actuator plate in the Example of FIG. It is an expansion perspective view explaining the conventional actuator plate.

Explanation of symbols

1: Operating device 2: Casing 3: Shift and select shaft 4: Inner lever 5: Interlock plate 51: Lock member 6: Actuator plate 62: Claw member 71: Ring gear 72: Final gear 81: Shift motor 82: Select motor 9 : Conventional actuator plate 92: (Single) claw member

Claims (2)

A shift-and-select shaft that is held in the casing and can move in the axial direction and rotate around the shaft, and is formed integrally with the shift-and-select shaft and engages with one of a plurality of fork shafts by the movement to select operation And an inner lever that shifts the fork shaft selected by the rotation, and the remaining fork shafts that are held on the shift and select shaft so as to be relatively rotatable and are not selected in synchronization with the selection operation. In an operating device of a transmission comprising: an interlock plate that engages with the actuator plate; and an actuator plate that prohibits rotation of the interlock plate during assembly.
The interlock plate has a locking member extending in the axial direction, and the actuator plate has a plurality of pawl members that can be moved in the axial direction and cannot be rotated about the axis when assembled. Transmission operating device.   The transmission operating device according to claim 1, wherein the actuator plate also serves as a pressing member that holds at least a part of a gear mechanism that drives the shift and select shaft in an axial direction and around the shaft.

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