JP2017024617A - Shift device of transmission - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shift device which can achieve non-conventional movements of inertial mass.SOLUTION: A shift device of a transmission comprises: a shift and select shaft 2; a holding part 3, arranged integrally in a case, which holds the shift and select shaft 2 to be movable in a shaft line direction and turnable around a shaft; an outer lever 4 which protrudes in an enlarged diameter direction from the shift and select shaft 2 and arranged integrally; an inertia mass shaft 6 which is arranged in the case or in the holding member 3, in parallel to the shift and select shaft 2; and inertial mass arm 5, one end part 51 of which is driven by oscillation of the outer lever 4 and connected to an end part 411 of the outer lever 4 to turn relatively, where a long hole 53, which supports the inertial mass shaft 6 to be movable parallely and rotatable relatively so that a distance between the one end part 51 and the hole can be changed, is formed between the one end part 51 and the other end part 52; and an inertial mass 52 arranged at the other end part 52 of the inertia mass arm 5.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a shift device for a transmission.

  The shift of the vehicle is performed by switching the gear connection of the transmission by the driver performing a shift operation and a select operation of the shift lever. In particular, the shift operation is an operation in which the gears are engaged with each other via the frictional force of the synchronization device incorporated in the transmission gear train. Feeling) is determined. If the meshing cannot be performed reliably, the driver receives a feeling of shifting and a two-step feeling that reduces shift feeling. As a method for improving the shift feeling, it has been proposed to increase the shift lever and adjust the shift stroke. For example, in Patent Document 1, a mass (inertial mass) is added to the outer diameter side of an outer lever that is integrally attached to one end of the shift lever and protrudes in the larger diameter direction. A shift control device for a manual transmission that assists operation and allows a shift lever to be operated with a light force is disclosed.

  Further, the shift device (hereinafter referred to as “conventional device”) 9 shown in FIG. 5 is designed such that a connecting portion between the inertia mass arm 92 including the inertia mass 91 and the outer lever 93 is relatively movable. Specifically, one end 95 of the outer lever 93 connected to the connecting portion 94 on the outer lever 93 side of the inertial mass arm 92 has a U shape with an opening on the inertial mass 92 side. In the conventional apparatus, the outer lever 93 is rotated and axially moved integrally with a shift lever 97 pivotally supported on a holding portion 96 fixed to a case or the like so as to be movable in the axial direction. 92 is rotatably supported by the holding part 96. In the conventional apparatus, when the shift lever 97 rotates in the direction of arrow A (or in the direction of arrow B) and the outer lever 93 rotates from an unoperated position shown by a solid line as shown in FIG. Is rotated in the direction of arrow a (or the direction of arrow b) about the inertia mass axis 98 fixed to the holding portion 96 while the connecting portion 94 of the inertia mass 92 slides and moves on one end 95 of the outer lever 93. As shown in FIG. 6, in the conventional apparatus, the inertial mass arm 92 rotates greatly with respect to the rotation of the outer lever 93. Therefore, it is necessary to ensure that the inertia mass arm 92 can be pivoted largely as a space for the shift device 9.

JP 2013-39905 A

  The present invention has been made in view of the above situation, and an object of the present invention is to provide a shift device that can realize an unprecedented movement of an inertial mass.

A structural feature of the invention for solving the above-described problem is that the shift and select is arranged so as to move in the axial direction in accordance with a select operation for shifting and to rotate around the axis in accordance with a shift operation. A shaft,
A holding portion that is integrally disposed in the case and holds the shift and select shaft in an axial direction and rotatable about the axis;
An outer lever that protrudes from the shift-and-select shaft in the diameter increasing direction and is integrally disposed;
An inertial mass axis disposed in the case in parallel with the shift and select shaft;
One end is connected so as to follow the swing of the outer lever and to rotate relative to the end of the outer lever, and the length between the one end can be changed in parallel and can be relatively rotated. An inertial mass arm in which a slot for supporting the inertial mass axis is formed between the one end and the other end;
An inertial mass disposed at the other end of the inertial mass arm;
It is to have.

  In the shift device of the present invention, the inertial mass arm has an elongated hole through which the inertial mass arm can move so that the length between one end of the inertial mass arm and the inertial mass axis can be changed. Therefore, the inertial mass arm to be driven rotates while moving in the axial direction with respect to the rotation of the outer lever. As a result, the movement of the inertia mass with respect to the movement of the shift and select shaft becomes unprecedented, which can be used to realize a necessary shift feeling. Furthermore, since the rotation range of the inertial mass is narrowed, it is possible to save the mounting space and to expect additional effects that the mounting property is improved.

It is the top view and transverse cross section which show the state where the shift device of embodiment is not shifted. It is the top view and cross-sectional view which show the state which the outer lever of the shift apparatus rotated to one side. It is the top view and cross-sectional view which show the state which the outer lever of the shift apparatus rotated to the other. It is the top view and cross-sectional view which show the state where the shift operation of the shift apparatus is not carried out, and the state rotated in both directions. It is the top view and cross-sectional view which show the state where the conventional shift apparatus is not shifted. It is the top view and cross-sectional view which show the state where the shift operation of the conventional shift apparatus was not performed, and the state rotated in both directions.

  A representative embodiment of the present invention will be described with reference to FIGS. The shift device according to the present embodiment is a device that is disposed inside a manual transmission that can perform a shift operation by operating a shift lever (not shown), and is mounted on a vehicle. Since the shift device according to the present embodiment can adopt a known technique for the vehicle type, the configuration of the transmission, the configuration other than the transmission, and the like as long as it is a vehicle on which a manual transmission can be mounted, description thereof will be omitted.

(Embodiment 1)
As shown in FIG. 1, the shift device 11 of the present embodiment includes a shift and select shaft (hereinafter referred to as “SS shaft”) 2, a holding portion 3, an outer lever 4, an inertia mass arm 5, and an inertia mass shaft 6. Have

  The SS shaft 2 is disposed in the holding portion 3 so as to be movable in the axial direction and rotatable about the axis. The holding unit 3 is a transmission case itself or a member fixed to the case. Also fixed to the holding portion 3 is an inertial mass shaft 6 whose axis is arranged parallel to the axial direction s of the SS shaft 2.

  The outer lever 4 has two arm portions 41 and 42 protruding from the SS shaft 2 in the diameter increasing direction and has a substantially L shape, and can move and rotate around the axis direction s of the SS shaft 2. It is fixed to the SS shaft 2 by welding or the like so as to move integrally. The outer lever 4 is a substantially plate-like member parallel to the rotation direction t1. One arm portion (corresponding to an end portion of the outer lever) 41 of the outer lever 4 is connected to a connecting portion 51 of an inertial mass arm 5 described later at the tip portion 411, and the other arm portion 42 is connected to the tip portion 421 at a control cable. (Not shown) are connected. The control cable is connected to the shift lever so that the other arm portion 42 of the outer lever 4 is pushed and pulled toward the direction in which it protrudes from the SS shaft 2 by its own movement. introduce.

  The inertial mass arm 5 includes a connecting portion (arranged at one end) 51, an inertial mass (fixed at the other end) 52, and an elongated hole 53. The inertial mass arm 5 passes through the elongated hole 53 from the connecting portion 51. The shape visually recognized from the axial direction s that reaches the line 52 is a single character. The connecting portion 51 is a rod-like member that is disposed at one end on the outer lever 4 side so as to be rotatable relative to the inertial mass arm main body 50, and protrudes from the inertial mass arm main body 50 in the axial direction s. Is connected to the tip portion 411 so as to be movable in the axial direction s and rotatable relative to the tip portion 411. That is, the connecting portion 51 protrudes in the axial direction s so as to have such a length that the connection is not released by the movement of the outer lever 4 in the axial direction s.

  The inertial mass 52 is located at the opposite end with the elongated hole 53 interposed therebetween. The long hole 53 is located between the connecting portion 51 and the inertial mass 52, has a shape that opens long on a line connecting the connecting portion 51 and the inertial mass 52, and connects the inertial mass arm body 50 to be rotatable. Inertial mass shaft 6 is inserted into. The inertial mass arm 5 rotates in the direction of the arrow t2 with the inertial mass shaft 6 as a rotation center.

  The short diameter of the long hole 53 is about the same as or slightly larger than the shaft diameter of the inertial mass shaft 6, and the inertial mass arm body 50 is a plate-like body. Therefore, even if the inertia mass shaft 6 is pivotally supported by the long hole 53, the movement (backlash) other than the movement of the inertia mass shaft 6 in the long diameter direction of the long hole 53 is reduced.

(Function)
Next, the operation of the shift device 11 will be described. In the shift device 11, the SS shaft 2 moves in the axial direction s according to the select operation for shifting, and rotates around the axis according to the shift operation. The outer lever 4 also moves in the axial direction s integrally with the movement of the SS shaft 2 and rotates in the direction of the arrow t1. In the present application, since the invention relates to the shift operation, the description of the select operation is omitted.

  First, the shift device 11 shown in FIG. 1 is in a neutral state where no operation for shifting is performed. In the neutral state, the SS shaft 2, the connecting portion 51, the inertia mass axis 6, and the inertia mass 52 are arranged in a substantially straight line. The inertia mass shaft 6 is located on the connection portion 51 side of the elongated hole 53 of the inertia mass arm 5.

  FIG. 2 shows a case where the outer lever 4 is rotated in one direction (arrow A direction) from the neutral state. When the outer lever 4 rotates in the arrow A direction, the inertial mass arm 5 connected by the connecting portion 51 and the tip 411 of the arm portion 41 rotates in the arrow a direction. At that time, the rotation center of the outer lever 4 and the rotation center of the inertial mass arm 5 (inertial mass axis 6) do not move from the fixed place. The inertial mass arm 5 is rotatably connected to the inertial mass shaft 6 through a long hole 53. Therefore, when the outer lever 4 rotates in the direction of arrow A, the inertial mass arm 5 moves to the connecting portion 51 side so as to be positioned on the inertial mass 52 side within the range of the long hole 53 through which the inertial mass shaft 6 can move. When the cross section is observed, the entire inertial mass arm 5 moves as if moved to the SS shaft 2 side.

  Next, FIG. 3 shows a case where the outer lever 4 is rotated in the other direction (arrow B direction) from the neutral state. When the outer lever 4 rotates in the arrow B direction, the inertial mass arm 5 connected by the connecting portion 51 with the tip 411 of the arm portion 41 rotates in the arrow b direction. At this time, the inertial mass arm 5 is moved to the connecting portion 51 side so that the inertial mass arm 5 is positioned on the inertial mass 52 side within the range of the long hole 53 through which the inertial mass shaft 6 can move by the rotation of the outer lever 4 in the arrow B direction. When the cross section is observed, the entire inertial mass arm 5 moves as if moved to the SS shaft 2 side.

(effect)
The respective positions of the inertial mass arms 5 at the positions where the outer lever 4 of the shift device 11 of the present embodiment is rotated in the neutral position and the arrow A direction and the arrow B direction are shown in FIG. The rotation range (rotation angle) in both directions of the outer lever 4 is the same as that of the outer lever 93 of the conventional device 9 shown in FIG. However, the rotation range of the inertial mass arm 5 is smaller in the rotation range W2 of the shift device 11 of the present embodiment than the rotation range W1 of the conventional device 9. Therefore, the shift device 11 can reduce the mounting space and is more mountable than the conventional device 9 that secures a large space.

  Further, since the rotation angle of the inertia mass 52 of the shift device 11 is smaller than the rotation angle of the conventional device 9 with respect to the same rotation range of the outer lever 4, the change of the rotation inertia force is small, and the inertia of the shift operation. The range of force is reduced, making it easier to adjust the required inertial force.

(Other embodiments)
The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment. For example, the shapes of the SS shaft 2, the holding portion 3, the outer lever 4, the inertia mass arm 5, and the inertia mass shaft 6 are simplified so that the positional relationship of each component associated with the shift operation is easy to understand. The shape is not limited. The same applies to the size and shape of the inertial mass 52.

11: Shift device
2: Shift and select shaft (SS shaft)
3: Holding part 4: Outer lever 41, 42: Arm part 411, 421: Tip part 5: Inertial mass arm 50: Main body part 51: Connection part (one end part) 52: Inertial mass (other end part)
53: Slot 6: Inertial mass shaft 9: Conventional shift device 91: Inertial mass 92: Inertial mass arm 93: Outer lever 94: Connection portion 95: One end 96: Holding portion 97: Shift lever 98: Inertial mass shaft

Claims (3)

A shift-and-select shaft arranged so as to move in the axial direction according to a select operation for shifting and to rotate around an axis according to a shift operation;
A holding portion that is integrally disposed in the case and holds the shift and select shaft in an axial direction and rotatable about the axis;
An outer lever that protrudes from the shift-and-select shaft in the diameter increasing direction and is integrally disposed;
An inertia mass axis disposed on the case or the holding member in parallel with the shift and select shaft;
One end is connected so as to follow the swing of the outer lever and to rotate relative to the end of the outer lever, and the length between the one end can be changed in parallel and can be relatively rotated. An inertial mass arm in which a slot for supporting the inertial mass axis is formed between the one end and the other end;
An inertial mass disposed at the other end of the inertial mass arm;
A shift device for a transmission having   2. The transmission shift device according to claim 1, wherein the one end portion has a shape protruding in an axial direction so as to be movable relative to the outer lever in the axial direction.   The shift apparatus for a transmission according to claim 1 or 2, wherein the inertia mass arm is arranged in a straight line in the order of the one end, the long hole, and the inertia mass.

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