JP6653975B2 - AT shift lever device - Google Patents

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an AT shift lever device for an automobile that can cause a shift cable to perform a push-pull operation when a shift lever is shifted from a P range.

  There are many types of AT shift lever devices, and an AT shift lever device having an AT mode range and an MT mode range is disclosed in, for example, Japanese Patent Application Laid-Open No. H10-157,97. The structure is such that a select operation is performed on the mode side, and then an operation of upshifting and downshifting is performed. In this specification, the range in which the shift-up and shift-down operations are performed is called an S range.

  However, an AT shift lever device that requires a select operation to move the shift lever in the lateral direction inevitably has a large width and needs to be symmetrical for right-hand drive vehicles and left-hand drive vehicles. There are problems that two types of AT shift lever devices must be manufactured.

  In addition to the structure disclosed in Patent Document 1 in which the range of the shift lever is detected by a switch and transmitted as an electric signal to the transmission, when the shift lever is operated between the P range and another range, the shift lever is pushed to the shift cable. An AT shift lever device has been developed in which a pull operation is performed to reliably transmit the transmission to a transmission. In such an AT shift lever device as well, the S range for shift-up and shift-down operations is shifted in the left-right direction, so that a select operation is required.

  However, if the select operation is eliminated to reduce the width of the AT shift lever device and all positions are linearly arranged, the shift cable stroke caused by the movement of the shift lever becomes unnecessarily large, and the design on the transmission side is changed. Another problem arises in that

JP 2010-36709 A

  Therefore, an object of the present invention is to eliminate the need for a select operation, and to allow the shift cable to perform a push-pull operation when the shift lever is operated between the P range and the predetermined range, and to require a stroke of the shift cable. An object of the present invention is to provide an AT shift lever device that does not need to be made larger.

  SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems. A first axis and a second axis extending in a direction perpendicular to a shift direction are formed on upper and lower portions of a lever subassembly supported by a base bracket, The base bracket has a second bearing portion that receives the second shaft in cooperation with the second leaf spring during the shift operation of the shift lever from the P range to the predetermined range, and during the shift operation from the predetermined range. A first bearing for receiving the first shaft in cooperation with the first leaf spring, and taking out the movement of the first shaft about the second shaft as a push-pull operation of the shift cable; The tilt position of the lever sub-assembly is detected by a position sensor provided on the base bracket.

  Preferably, the first shaft is a connection pin of a shift cable. The second shaft has a long diameter portion and a short diameter portion, and the second bearing portion has a slide groove in which the second shaft can slide when the shift lever is further shifted from the predetermined range. Is preferred. Preferably, the two leaf springs have a structure having a curled tip. Further, it is preferable that the base bracket has a structure in which a retaining portion for preventing the first shaft from falling off from the first bearing portion when the shift lever is returned to the front is provided.

  According to the AT shift lever device of the present invention, a first shaft and a second shaft extending in a direction perpendicular to a shift direction are formed on upper and lower portions of a lever subassembly supported by a base bracket, and the shift lever is moved to a P range. During the shift operation from the predetermined range to the predetermined range, the second bearing portion is used as the rotation center of the shift lever, and during the further shift operation from the predetermined range, the first bearing portion is used as the rotation center of the shift lever.

  Therefore, while the shift lever is shifted from the P range to the predetermined range, the first axis can be moved around the second axis, and the push-pull operation of the cable can be performed using this movement. Also, during further shifting operation from the predetermined range, the first axis does not move, so the cable is fixed, and the tilt position of the lever subassembly around the first axis is determined by the position sensor provided on the base bracket. It becomes possible to detect.

  As described above, since the AT shift lever device of the present invention does not require a select operation, it can be used for both right-hand drive vehicles and left-hand drive vehicles, and the manufacturing cost can be reduced. Further, the stroke of the shift cable is only during the shift operation from the P range to the predetermined range, so that it can be reduced.

  Further, since the first bearing portion and the second bearing portion are provided with the first and second leaf springs, respectively, they can receive the first shaft or the second shaft when they become the center of rotation, and the other shafts can rotate. At the center, a sense of moderation can be created.

1 is an overall perspective view of an AT shift lever device according to an embodiment. It is an exploded perspective view of an AT shift lever device of an embodiment. FIG. 4 is an explanatory diagram of a shift pattern. It is a side view in a P range. It is a partial sectional view in a P range. It is a side view in an R range. It is a partial sectional view in the R range. It is a side view in N range. It is a partial sectional view in N range. It is a side view in D range. It is a partial sectional view in a D range. It is a partial sectional view in the S range. It is a side view in S range.

Hereinafter, embodiments of the present invention will be described.
FIG. 1 is an overall perspective view of the AT shift lever device of the embodiment, and FIG. 2 is an exploded perspective view thereof. In these figures, reference numeral 10 denotes a hollow base bracket, the bottom of which is attached to a retainer 11. In addition, in this specification, the front means the front when attached to the vehicle body, and is the left direction in the drawings of FIG.

  Reference numeral 13 denotes a lever subassembly, on which a shift lever 14 and a shift knob 15 are attached. A first shaft 16 extending at right angles to the shift direction is provided at an upper portion of the lever subassembly 13, and a second shaft 17 extending at right angles to the shift direction is provided at a lower portion. As shown in FIG. 2, the first shaft 16 is provided so as to penetrate a plate-like portion 25 protruding forward from the lever subassembly 13. The plate-like portion 25 has a shape whose front end is bent downward. The first shaft 16 is a connection pin of a shift cable, and is connected to an end of a shift cable (not shown). The end of the second shaft 17 has a shape in which the lower surface 18 of the cylinder is substantially flattened, and has a long diameter portion and a short diameter portion.

  A shift gate 19 for shifting the shift lever 14 is formed on the upper surface of the base bracket 10. As shown in FIG. 3, the shift gate 19 of the AT shift lever device of the present invention extends linearly in the shift direction, and has a shape without a select operation. In this embodiment, as described below, when the shift lever 14 is operated between the P range and a predetermined range (for example, the R range), the push-pull operation of the shift cable occurs. The operation of the shift cable is canceled when operated between. In addition, as shown in FIG. 2, the upper part of the base bracket 10 extends forward, and a downward hanging piece 26 is formed at the tip thereof. The plate-like portion 25 and the hanging piece 26 constitute a retaining portion 27, the function of which will be described later.

  As shown in FIG. 2, an uneven detent groove 20 is formed on the rear side surface of the base bracket 10. As in the prior art, a detent pin 21, a detent rod 22, and a spring 23 are provided inside the shift lever 14. The detent pin 21 is a T-shaped member that protrudes from the long hole 24 of the lever subassembly 13, is pushed up by a spring 23, and engages with the detent groove 20. The detent rod 22 is a member that pushes down the detent pin 21 against the spring 23, and its upper end reaches a knob button (not shown) of the shift knob 15. Therefore, when operating the shift lever 14 between the ranges indicated by black arrows in FIG. 3, the shift operation cannot be performed unless the detent pin 21 is pushed down from the detent groove 20 by pressing the knob button. Such a detent structure is the same as the conventional one and is not a main part of the present invention.

  As shown in FIG. 2, a second bearing portion 30 for receiving the second shaft 17 is formed below the base bracket 10. The second bearing portion 30 includes a circular hole portion 31 that can receive and rotate the long diameter portion of the second shaft 17 and an arc-shaped slide groove 32 formed on the left side thereof. The slide groove 32 is formed in accordance with the trajectory of the second shaft 17 when the lever sub-assembly 13 rotates about the first shaft 16. The vertical width of the arc-shaped groove portion 32 is set so that the short diameter portion of the second shaft 17 can pass through, but the long diameter portion cannot pass through.

  As shown in FIG. 5, a second leaf spring 35 extending toward the second bearing 30 is provided below the base bracket 10. The second leaf spring 35 has a curled tip portion 36, which is fitted into a concave portion 37 formed at the center of the second shaft 17, and the second shaft 17 is stabilized on the second bearing portion 30. Is held. In addition, a concave / convex portion 38 following the concave portion 37 is formed at the center of the second shaft 17, and when the second shaft 17 moves, a sense of moderation can be given.

  Further, as shown in FIG. 2, a first bearing portion 40 for receiving the first shaft 16 is formed on an upper portion of the base bracket 10. As shown in FIG. 4, the shape includes a substantially semicircular portion 41 which can be rotated by receiving the first shaft 16 and an opening 42 formed on the front side thereof.

  As shown in FIG. 4, the first bearing portion 40 is also provided with a first leaf spring 45. The base of the first leaf spring 45 is also fixed to the base bracket 10 and has a curled tip 46. When the shift lever 14 is shifted to the R range, the tip 46 is fitted between the first shaft 16 and a frame-like projection 47 formed below the first shaft 16 as shown in FIG. Is kept stable. However, in the P range, as shown in FIG. 4, the first shaft 16 is located at a position off the first bearing portion 40, and the first leaf spring 45 is located at a position riding on the first shaft 16.

  Further, as shown in FIG. 2, a position sensor 50 is housed inside the base bracket 10. The position sensor 50 detects a position when the shift lever 14 is operated between the P range and the S range. However, the position sensor 50 is known per se, and is not a main part of the present invention, and therefore description thereof is omitted. I do.

  Next, the operation of the AT shift lever device of the present invention will be described. In this embodiment, the shift cable is subjected to the push-pull operation during the shift operation of the shift lever 14 from the P range to the R range. However, the R range, which is the predetermined range, can be replaced with another range such as an N range or a D range.

  First, when the shift lever 14 is in the P range shown in FIGS. 4 and 5, the second shaft 17 below the lever sub-assembly 13 is fitted into the circular hole 31 of the second bearing 30. The curled tip 36 of the second leaf spring 35 fits into a concave portion 37 formed in the center of the second shaft 17, and the second shaft 17 is stably held by the second bearing 30. At this time, the connection pin of the shift cable, which is the first shaft 16, is at the front position as shown in the figure.

  When the shift lever 14 is shifted from the P range to the R range shown in FIGS. 6 and 7, during this time, the lower second shaft 17 becomes the shift rotation center and the lever sub-assembly 13 rotates. For this reason, the first shaft 16 makes a large circular motion from the position shown in FIG. 5 as shown in FIG. 7, and moves the connected shift cable to perform the push-pull operation. For this reason, the shift operation from the P range to the R range is reliably transmitted to the transmission via the shift cable. During this time, since the second shaft 17 does not move, the second leaf spring 35 does not bend. By this operation, the first shaft 16 is fitted into the first bearing portion 40 as shown in FIG.

  Next, when the shift lever 14 is shifted from the R range to the N range shown in FIGS. 8 and 9, the first shaft 16 fitted in the first bearing portion 40 cannot move backward any more. Stop at the position of the R range. After that, the first shaft 16 is newly set as the shift rotation center, and the lever sub-assembly 13 swings. At this time, the second shaft 17 moves forward inside the arc-shaped slide groove 32. At the same time, the distal end portion 36 of the second leaf spring 35 moves from the concave portion 37 to the concave / convex portion 38 as shown in FIG. 9, so that a sense of moderation can be generated. The shift of the shift lever 14 to the N range is detected by the position sensor 50.

  When the shift lever 14 is shifted from the N range to the D range shown in FIGS. 10 and 11, the lever subassembly 13 further rotates about the first shaft 16 as the shift center. At this time, the distal end portion 36 of the second leaf spring 35 further moves inside the concave / convex portion 38, and causes a sense of moderation.

  The same applies when the shift lever 14 is shifted to the S range shown in FIGS. The AT shift lever device of the present invention does not have a function of performing shift-up and shift-down operations in the S range.

  When the shift lever 14 is returned from the S range to the P range, the operation is reversed, and the lever sub-assembly 13 rotates about the first shaft 16. In this way, the retaining portion 27 functions so that the first shaft 16 does not move forward when returning the shift lever 14 from the S range, the D range, and the N range to the R range, that is, forward. That is, as shown in FIG. 8, the plate-like portion 25 protruding forward of the lever subassembly 13 engages with the hanging piece 26 at the upper end of the base bracket 10 to prevent the first shaft 16 from moving forward. . Therefore, even when the lever sub-assembly 13 is returned to the front, the first shaft 16 can be reliably used as the center of rotation. When reaching the R range, the plate-like portion 25 of the lever sub-assembly 13 moves to a position lower than the hanging piece 26 of the base bracket 10, so that the first shaft 16 can move forward. The assembly 13 rotates around the second shaft 17 as a center of rotation, and moves the shift cable connected to the first shaft 16.

  As described above, the AT shift lever device of the present invention does not require a select operation by switching the rotation center, and when the shift lever is operated between the P range and a predetermined range (for example, the R range), The shift cable can perform a push-pull operation. Since the AT shift lever device of the present invention does not perform a select operation, there is an advantage that it can be used for both right-hand drive vehicles and left-hand drive vehicles. Further, there is an advantage that the stroke of the shift cable can be shortened.

DESCRIPTION OF SYMBOLS 10 Base bracket 11 Retainer 13 Lever subassembly 14 Shift lever 15 Shift knob 16 First shaft 17 Second shaft 18 Lower surface 19 Shift gate 20 Detent groove 21 Detent pin 22 Detent rod 23 Spring 24 Long hole 25 Plate portion 26 Hanging piece 27 Exit Stop part 30 Second bearing part 31 Circular hole part 32 Slide groove 35 Second leaf spring 36 Curled tip part 37 Recessed part 38 Irregularity part 40 First bearing part 41 Substantially semicircular part 42 Opening 45 First leaf spring 46 Curled tip 47 Frame-shaped projection 50 Position sensor

Claims (5)

A first shaft and a second shaft extending in a direction perpendicular to the shift direction are formed on upper and lower portions of the lever subassembly supported by the base bracket;
The base bracket includes a second bearing portion that receives the second shaft in cooperation with the second leaf spring during the shift operation of the shift lever from the P range to the predetermined range, and during the shift operation from the predetermined range. A first bearing for receiving the first shaft in cooperation with the first leaf spring, and taking out the movement of the first shaft about the second shaft as a push-pull operation of the shift cable; An AT shift lever device characterized in that an inclined position of the lever sub-assembly is detected by a position sensor provided on a base bracket.   The AT shift lever device according to claim 1, wherein the first shaft is a connection pin of a shift cable.   The second shaft has a long diameter portion and a short diameter portion, and a slide groove in which the second shaft can slide when the shift lever is further shifted from the predetermined range is formed in the second bearing portion. The AT shift lever device according to claim 1 or 2, wherein:   4. The AT shift lever device according to claim 1, wherein the two leaf springs have curled tips.   The AT according to any one of claims 1 to 4, wherein the base bracket is provided with a retaining portion for preventing the first shaft from falling off from the first bearing portion when the shift lever is returned to the front. Shift lever device.

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