JP2007161125A - Column shift operation device of automatic transmission device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a column shift operation device of an automatic transmission device for a vehicle, which obtains the optimum click feeling by canceling out influence from an operation lever's own weight. <P>SOLUTION: An urging device is formed, which cancels out the own weight W of the shift lever 34 by pressing a pressing roller 86 provided on a leaf spring 84 to a cam surface 88 of a cam 78 provided on a shift shaft 18, and the column shift operation device 6 for obtaining the optimum click feeling is provided since a click mechanism is set without considering the own weight W of the shift lever 34. Since the urging device 76 has a relatively simple constitution, the urging device 76 is easily provided. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a column shift operation device for a vehicle automatic transmission, and more particularly to an improvement of a moderation mechanism provided in the column shift operation device.

  As a vehicle shift operation device, there are mainly a column shift method in which an operation lever is provided in the vicinity of a steering column and a floor shift method in which an operation lever is provided on the floor of the vehicle (floor) depending on the position of the operation lever. Broadly divided, the column shift method has an advantage that the driver's foot space can be secured wider and the comfort in the passenger compartment can be improved compared to the floor shift method.

  This column shift system includes a moderation mechanism as disclosed in Patent Document 1, for example, and this moderation mechanism allows the driver to obtain a moderation feeling associated with the shift during the shift. Lever selection mistakes are suppressed.

JP-A-8-324283

  By the way, in the US market or the like, there is a tendency to increase the size of the vehicle, the parking holding load increases, and the operation lever tends to be lengthened in order to reduce the operation load when operating the operation lever from the parking position. As a result, since the operation lever becomes heavy, the influence of the self-weight becomes large, and the self-weight of the operation lever is added to the shift from the parking position to the drive position.

  In general, it is preferable to increase the operation load from parking to the drive direction and to set the operation load lighter from the drive to the parking position because of the operability of the column shift method, but consider the influence of the operation lever's own weight. Therefore, when designing moderation, it is necessary to set the operation load from parking to the drive position in the direction of the own weight of the operation lever, and to set the operation load from the drive to the parking direction as light as the weight of the operation lever. There was a problem that the degree of freedom in design was lowered and ideal load characteristics could not be obtained.

  The present invention has been made against the background of the above circumstances, and the object of the present invention is to provide an automatic transmission for a vehicle that can obtain an optimum moderation feeling by offsetting the influence of the weight of the operation lever. The object is to provide a column shift operating device.

  In order to achieve the above object, the gist of the invention according to claim 1 is that: (a) a rotating shaft that is rotated by an operation lever provided on the steering column, and an operationally connected to the rotating shaft; A moderation mechanism for providing a moderation feeling according to the operation position when the operation lever is rotated, and (b) the rotary shaft includes the column shift operation device. A biasing device is provided for constantly applying a rotational force in a direction opposite to the rotational force due to the weight of the operation lever to cancel the rotational force due to the self-weight.

  According to a second aspect of the present invention, there is provided a column shift operating device for an automatic transmission for a vehicle according to the first aspect, wherein the urging device is connected to a non-rotatable fixing member. And a cam member provided on the rotating shaft, and the tip of the leaf spring is pressed against the cam surface of the cam member so that a rotating force in a direction opposite to the rotating force due to the weight of the operating lever acts. It is made to be made to be characterized.

  According to a third aspect of the present invention, there is provided a column shift operating device for an automatic transmission for a vehicle according to the first aspect, wherein the biasing device is a coil spring provided on a non-rotatable fixing member. And a pressing member provided at the tip of the coil spring so that a rotational force in a direction opposite to the rotational force due to the weight of the operation lever acts. The cam member is pressed against the cam surface.

  According to a fourth aspect of the present invention, there is provided a column shift operating device for an automatic transmission for a vehicle according to the first aspect, wherein the biasing device is a coil wound around an outer periphery of the rotating shaft. The coil spring has one end fixed to a non-rotatable spring receiving member, and the other end of the coil spring fixed to the rotating shaft. The coil spring is caused by its own weight. A torsion is applied so that a rotational force in a direction opposite to the rotational force acts.

  According to the column shift operating device of the automatic transmission for a vehicle according to the first aspect of the present invention, since the biasing device for canceling the own weight of the operating lever is provided, the own weight of the operating lever is taken into consideration. Therefore, it is possible to provide a column shift operation device that can set a moderation mechanism without obtaining an optimum moderation feeling.

  According to the column shift operation device for an automatic transmission for a vehicle according to a second aspect of the present invention, by pressing the leaf spring against the cam surface of the cam member provided on the rotation shaft, the weight of the operation lever is reduced. Therefore, the moderation mechanism can be set without considering the self-weight of the operation lever, so that it is possible to provide a column shift operation device that can obtain an optimum moderation feeling. . Further, since the urging device has a relatively simple configuration, the urging device can be easily provided.

  According to the column shift operating device of the automatic transmission for a vehicle according to the third aspect of the present invention, the pressing member provided at the tip of the coil spring is pressed against the cam surface of the cam member provided on the rotating shaft. As a result, it becomes an urging device that cancels the weight of the operation lever, and the moderation mechanism can be set without considering the weight of the operation lever. Can be provided. Further, since the urging device has a relatively simple configuration, the urging device can be easily provided.

  According to the column shift operating device of the automatic transmission for a vehicle according to the fourth aspect of the present invention, the biasing device in which the coil spring wound around the outer periphery of the rotating shaft cancels its own weight against the own weight of the operating lever. Thus, since the moderation mechanism can be set without considering the weight of the operation lever, it is possible to provide a column shift operation device that can obtain an optimal sense of moderation. Further, since the urging device has a relatively simple configuration, the urging device can be easily provided.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a diagram for explaining a mounting state of a steering device 8 provided with a column shift operation device 6 according to an embodiment of the present invention, and FIG. 2 is a diagram for explaining a configuration of the column shift operation device 6. In FIG. 1, a column shift operating device 6 of a steering device 8 is fixed to a vehicle panel 10 and a body (not shown), and is erected on the front side of a driver's seat of the vehicle. As shown in FIG. 2, the steering column 12 rotatably supports a steering shaft 16 connected to the steering wheel 14. In the steering column 12, a shift shaft 18 is rotatable around a rotation axis C2 parallel to the rotation axis C1 of the steering shaft 16 and is movable in the direction of the rotation axis C2. The third bracket 24 is attached. A cylindrical sleeve 26 is integrally connected to the upper end portion of the shift shaft 18, and a receiving shaft 28 fixed to the first bracket 20 is slidably fitted in the sleeve 26. Yes. In this embodiment, the shift shaft 18 corresponds to the rotating shaft of the present invention.

  A coil spring 30 is accommodated in the sleeve 26, and the coil spring 30 is inserted between the lower end surface of the receiving shaft 28 and the upper end portion of the shift shaft 18 in a preload state. The shaft 18 is urged downward.

  The sleeve 26 is integrally provided with a support arm 32 projecting in the radial direction, and an intermediate portion of the shift lever 34 is provided around the circumferential pin 36 perpendicular to the plane including the rotation axis C2 by the support arm 32. It is rotatably supported. Thereby, the shift lever 34 is attached in a state of being positioned in the vicinity of the lower side of the steering wheel 14. The base end portion of the shift lever 34 is accommodated in a notch 38 formed at the upper end portion of the receiving shaft 28. In this embodiment, the shift lever 34 corresponds to the operation lever of the present invention.

  As a result, the shift lever 34 is positioned on the lower side, that is, on the panel 10 side according to the urging force of the coil spring 30 when it is not operated at all times, but the shift lever 34 is moved upward against the urging force of the coil spring 30. That is, when operated to the steering wheel 14 side, the shift shaft 18 is also moved upward along the rotation axis C2. When the shift lever 34 is operated along the rotation axis C2, the shift shaft 18 is rotated around the rotation axis C2 in accordance with the shift operation. That is, the shift shaft 18 is moved in the direction of the rotation axis C2 in accordance with the operation of the select direction SL of the shift lever 34, and around the rotation axis C2 in accordance with the operation of the shift direction SH orthogonal to the selection direction SL. It is rotated by a predetermined angle.

  A shift arm 40 that protrudes in the radial direction and changes the rotation angle position in accordance with the operation of the shift lever 34 in the shift direction SH is fixed to the lower end portion of the shift shaft 18. The rotation angle position is an angle position set for each shift position, that is, a parking position P, a reverse position R, a neutral position N, and a drive position D, which will be described later. The shift arm 40 is engaged in an elongated hole 44a formed in an input arm 44 of a bell crank 42 that is rotatably provided in the third bracket 24. The output arm 46 of the bell crank 42 is connected through a pole joint 50 and a cable 52 connected to the shift mechanism of the automatic transmission 48.

  FIG. 3 is a view showing a moderation mechanism 60 provided in the automatic transmission 48. The moderation mechanism 60 is mainly configured by a detent plate 62 and a leaf spring 64. The detent plate 62 is supported so as to be rotatable about the axis of the support shaft 66, and the cable 52 of FIG. 2 is operatively connected to the detent plate 62 via a pole joint 67. The detent plate 62 includes a first concave valley 68a for positioning at the parking position P, a second concave valley 68b for positioning at the reverse position R, and a third concave for positioning at the neutral position N. A concave valley portion 68c and a fourth concave valley portion 68d to be positioned at the drive position P are continuously formed. The plate spring 64 is screwed to the case 70 which is a non-rotating member of the automatic transmission 48 by a bolt 72, and an engagement roller 74 is connected to the tip of the plate spring 64. The plate spring 64 is urged so that the engagement roller 74 always presses the waved surface including the first concave valley portion 68a to the fourth concave valley portion 68d of the detent plate 62 by the elastic restoring force of the plate spring 64. .

  Here, when the cable 52 is moved by a predetermined position by the turning operation of the shift lever 34, the detent plate 62 is turned according to the moving amount, and the engagement roller 74 of the leaf spring 64 is in the first concave shape. It is engaged with any one of the valley 68a to the fourth concave valley 68d. Here, when the engagement roller 74 is engaged with the first concave valley 68a, the parking state is established, when the engagement roller 74 is engaged with the second concave valley 68b, the reverse (reverse) state is established, and when the engagement roller 74 is engaged with the third concave valley 68c, the neutral is obtained. When it enters the state and engages with the fourth concave valley 68d, it enters a drive (forward automatic shift running) state. In this shift operation, when the engagement roller 74 moves the wavy surface toward the top 75 of the wavy surface of the detent plate 62, a predetermined load is applied to the operation of the shift lever 34 by the elastic return force of the spring plate 64. Then, when moving from the top 75 to any one of the concave valleys 68a to 68d, the predetermined load is not applied, and the driver obtains a sense of moderation according to the operation position during the shift operation. It has a structure that can. By this shift operation, a connecting member (not shown) provided on the detent plate 62 operates a manual valve of a valve body (not shown) provided in the automatic transmission 48 so that the selected traveling state is automatically achieved. Hydraulic oil is supplied into the transmission 48. Thereby, the automatic transmission 48 is in any of the parking state, the reverse (reverse) traveling state, the neutral state, and the drive (forward automatic shift traveling) state in accordance with the operation of the shift lever 34 in the shift direction SH. Selected. Note that the moderation mechanism 60 of this embodiment corresponds to the moderation mechanism of the present invention.

  Returning to FIG. 2, when the operation amount (movement) of the shift direction 34 and the selection direction SL of the shift lever 34 is limited, and when operating from any one of the plurality of shift positions to another shift position, The shift lever 34 is positioned by the first bracket 20 so that the operation in the shift direction SH is not allowed unless the shift lever 34 is operated in the direction opposite to the biasing direction side by the spring 30, that is, the steering wheel 14 side. The engaging pin 58 projecting from the sleeve 26 is engaged with the guide hole of the guide member 54 that is fixedly supported, whereby the movement operation path of the shift lever 34 is restricted.

Further, between the second bracket 22 and the sleeve 26 of the shift shaft 18,
An urging device 76 is provided. FIG. 4 is an arrow view of the urging device 76 of FIG. 2 as viewed from the direction of arrow A, and is a diagram illustrating the urging device 76 of the present invention. The urging device 76 includes a cam 78 and a leaf spring 84. Since the cam 78 is fixed to the shift shaft 18, the cam 78 is rotated around the rotation axis C <b> 2 integrally with the shift shaft 18. Further, as described above, the shift lever 34 is operatively connected to the shift shaft 18 via the sleeve 26. The operation force transmitted from the shift lever 34 causes the shift shaft 18 to move around the rotation axis C2. Rotate. Further, a spring plate 84 is fixed to the non-rotatable fixing member 82, and a pressing roller 86 provided at the tip of the spring plate 84 always presses the cam surface 88 of the cam 78. Here, the cam 78 is operated in the select direction SL of the shift lever 34, that is, the pressing roller 86 is not separated from the cam surface 88 even if the cam 78 is operated in the direction of the rotation axis C2. Thickness is provided, and projections 90 and 92 for restricting rotation of the cam 78 are provided on both sides of the cam surface 88 in parallel with the rotation axis C2. Note that the cam 78 of this embodiment corresponds to the cam member of the present invention.

  Here, due to the weight W of the shift lever 34, a rotational force is generated in the direction of the arrow E on the shift shaft 18. The pressing roller 86 presses the cam surface 88 against this rotational force, so that a rotational force in the direction opposite to the rotational force is always applied. As a result, the rotational force due to the weight W of the shift lever 34 is offset. Further, the rotational force due to the weight W of the shift lever 34 varies depending on the rotation position of the shift lever 34. For example, as shown in FIG. 4, when the ground and the shift lever 34 are substantially parallel to each other, the rotational force becomes the largest, but on the other hand, the end of the shift lever 34 is further rotated so as to be positioned above the ground. Accordingly, the rotational force of the shift lever 34 decreases. In this embodiment, the shape of the cam surface 88 of the cam 78 is set so as to correspond to the fluctuation of the rotational force. The cam surface 88 and the pressing roller 86 generate a force perpendicular to the contact surface. When the rotational force generated by the force and the rotational force generated by the weight W of the shift lever 34 are substantially equal, the weight of the shift lever 34 is reduced. The effect of W is offset. Therefore, as the rotational position of the shift lever 34 changes, the pressing position of the pressing roller 86 and the pressing surface in contact therewith are changed as appropriate, and the rotational force generated from the pressing roller 86 is also changed in accordance with those changes. As a result, the rotational force generated by the shift lever 34 and the rotational force generated from the pressing roller 86 become equal regardless of the rotational position of the shift lever 34, and the own weight W is canceled out.

  As described above, according to the present embodiment, the urging device 76 that cancels the weight W of the shift lever 34 is provided, so that the weight W of the shift lever 34 is not considered. The moderation mechanism 60 can be set, and the column shift operation device 6 can be provided in which an optimum moderation feeling can be obtained. For example, in this embodiment, the pressing roller 86 provided on the leaf spring 84 is pressed against the cam surface 88 of the cam 78 provided on the shift shaft 18, so that its own weight with respect to the own weight W of the shift lever 34. The biasing device cancels W, and the moderation mechanism 60 can be set without considering the weight W of the shift lever 34. Therefore, it is possible to provide the column shift operating device 6 that can obtain an optimal moderation feeling. . Further, since the urging device 76 has a relatively simple configuration, the urging device 76 can be easily provided.

  Next, another embodiment of the present invention will be described. In the following description, common portions common to the embodiments are denoted by the same reference numerals and description thereof is omitted.

  FIG. 5 is a view for explaining an urging device 94 according to another embodiment of the present invention. The urging device 94 is provided between the second bracket 22 of the shift shaft 18 and the sleeve 26 as in the above-described embodiment, and includes a cam 78 and a coil spring 96. The coil spring 96 is disposed in a spring hole 98 formed in the non-rotatable fixing member 82, and the pressing roller 86 is connected to the spring hole 98 via a connecting member 100 slidably fitted. Yes. In this embodiment, the pressing roller 86 always presses the cam surface 88 against the cam surface 88 of the cam 78 by the elastic force of the coil spring 96. Due to this pressing force, a reverse rotational force acts on the shift shaft 18 via the cam 78 so as to cancel the rotational force due to the weight W of the shift lever 34. Here, the cam 78 has a predetermined thickness in the direction of the axis C2 so that the pressing roller 86 does not detach from the cam surface 88 even when operated in the select direction SL of the shift lever 34. The projections 90 and 92 for restricting the rotation of the cam 78 are provided in parallel with the rotation axis C2. Further, in response to the rotational force that varies depending on the rotational position of the shift lever 34, the pressing position of the cam surface 88 and the pressing roller 86 and the pressing surface in contact with the rotational force are changed. The shape of the cam surface 88 is set so that a rotational force substantially equal to the rotational force is generated, and the influence of the weight W of the shift lever 34 is offset regardless of the rotational position of the shift lever 34. . Note that the pressing roller 86 of this embodiment corresponds to the pressing member of the present invention, and the coil spring 96 corresponds to the coil spring of the present invention.

  As described above, according to the above-described embodiment, the pressing lever 86 provided on the coil spring 96 via the connecting member 100 is pressed against the cam surface 88 of the cam 78 provided on the shift shaft 18, thereby enabling the shift lever. Since the biasing device 94 cancels the own weight W with respect to the own weight W of the 34, and the moderation mechanism 60 can be set without considering the own weight W of the shift lever 34, the column shift for obtaining the optimum moderation feeling can be obtained. The operating device 6 can be provided. Further, since the biasing device 94 has a relatively simple configuration, the biasing device 94 can be easily provided.

  Next, still another embodiment of the present invention will be described. In the following description, common portions common to the embodiments are denoted by the same reference numerals and description thereof is omitted.

  FIG. 6 is a view for explaining an urging device 102 according to still another embodiment of the present invention. The biasing device 102 is configured by a coil spring 106 interposed between the second bracket 22 of the shift shaft 18 and a spring receiving member 104 fixed to the shift shaft 18 so as not to be relatively rotatable. The coil spring 106 is wound around the outer periphery of the shift shaft 18, one end side of the coil spring 106 is connected to the second bracket 22, and the other end side is connected to the spring receiving member 104. Torsion is applied so that a rotational force in a direction opposite to the rotational force due to W acts. The influence of the weight W of the shift lever 34 is offset by the elastic restoring force due to the torsion. In addition, the coil spring 106 of a present Example respond | corresponds to the coil spring of this invention.

  As described above, according to the above-described embodiment, the coil spring 106 wound around the outer periphery of the shift shaft 18 serves as the biasing device 102 that cancels the own weight W with respect to the own weight W of the shift lever 34. Since the moderation mechanism 60 can be set without taking into consideration the own weight W, it is possible to provide the column shift operating device 6 that can obtain an optimal moderation feeling. Further, since the urging device 102 has a relatively simple configuration, the urging device 102 can be easily provided.

  As mentioned above, although the Example of this invention was described in detail based on drawing, this invention is applied also in another aspect.

  For example, the urging devices 76, 94, and 102 of the above-described embodiments each use an elastic member such as a spring as a driving source. However, the urging device 76, 94, and 102 may not necessarily be an elastic member such as a spring. It is also possible to energize using another driving source such as a pressure.

  Further, the urging devices 76, 94, 102 of the above-described embodiment are respectively disposed between the second bracket 22 and the sleeve 26. However, the positions of the urging devices 76, 94, 102 are not necessarily the positions described above. However, the position can be freely set as long as the position is operatively connected to the moderation mechanism 60.

  The above description is only an embodiment, and the present invention can be implemented in variously modified and improved forms based on the knowledge of those skilled in the art.

It is a figure explaining the attachment state of the steering apparatus provided with the column shift operation apparatus to which this invention was applied. It is a figure explaining the structure of the column shift operation apparatus of FIG. It is a figure explaining the moderation mechanism provided in the automatic transmission. FIG. 3 is an arrow view of the urging device of FIG. 2 as viewed from the direction of arrow A. It is a figure explaining the urging | biasing apparatus which is another Example of this invention. It is a figure explaining the urging | biasing apparatus which is another Example of this invention.

Explanation of symbols

6: Column shift operating device 12: Steering column 18: Shift shaft (rotating shaft) 34: Shift lever (operating lever) 60: Moderation mechanism 76, 94, 102: Energizing device 78: Cam (cam member) 82: Fixed member 84: Leaf spring 86: Pressing roller (pressing member) 88: Cam surface 96: Coil spring (coil spring) 104: Spring receiving member 106: Coil spring (coil spring)

Claims (4)

A rotation shaft that is rotated by an operation lever provided on the steering column, and a moderation mechanism that is operatively connected to the rotation shaft and that provides a sense of moderation according to the operation position when the operation lever is rotated. A column shift operating device for a vehicle automatic transmission provided with
The rotating shaft is provided with a biasing device for constantly applying a rotational force in a direction opposite to the rotational force due to the weight of the operation lever to cancel the rotational force due to the self-weight. Column shift operating device for automatic transmission. The biasing device comprises a leaf spring connected to a non-rotatable fixing member and a cam member provided on the rotating shaft,
The tip of the leaf spring is pressed against the cam surface of the cam member so that a rotational force in a direction opposite to the rotational force due to the weight of the operation lever acts. Column shift operating device for automatic transmission for vehicles. The biasing device comprises a coil spring provided on a non-rotatable fixing member and a cam member provided on the rotating shaft,
The pressing member provided at the tip of the coil spring is pressed against the cam surface of the cam member so that a rotational force in a direction opposite to the rotational force due to the weight of the operation lever acts. The column shift operating device for an automatic transmission for a vehicle according to claim 1. The urging device comprises a coil spring wound around the outer periphery of the rotating shaft,
One end of the coil spring is fixed to a non-rotatable spring receiving member, and the other end of the coil spring is fixed to the rotating shaft,
The column shift of the automatic transmission for a vehicle according to claim 1, wherein the coil spring is twisted so that a rotational force in a direction opposite to a rotational force due to the weight of the operation lever acts. Operating device.

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