JP4964581B2 - Shift position detector for shift lever device - Google Patents

Description

  The present invention relates to a shift position detecting device for a shift lever device mainly used in a vehicle such as an automobile.

  A shift lever device mainly used in a vehicle such as an automobile selects a shift position by operating the shift lever, and includes a shift position detection device that electrically detects the shift position of the shift lever (for example, a patent). Reference 1).

JP 2004-138235 A

In the shift position detecting device for shift lever device (corresponding to “sensor unit (19)” in Patent Document 1), two members having sliding surfaces that slide relative to each other based on the operation of the shift lever ( Similarly, “Case (22)” and “Holder (23)” and “Holder (23)” and “Holder (24)”) are provided. The sliding surfaces of these two members are formed as simple planes, and the sliding surfaces are in surface contact with each other.
On the other hand, foreign matters such as dust, dust, and abrasion powder easily enter the shift lever device, and may enter between the sliding surfaces of the two members in the shift position detection device.
Therefore, if foreign matter enters between the sliding surfaces of the two members that are formed in a plane and are in surface contact with each other, there arises a problem that the slidability between the two members decreases.

  The problem to be solved by the present invention is to provide a shift position detecting device for a shift lever device capable of preventing a decrease in slidability between two members due to the biting of foreign matter between the sliding surfaces of the two members. There is to do.

The above-mentioned problem can be solved by a shift position detecting device for a shift lever device having the structure described in the claims.
That is, according to the shift lever device for a shift position detecting device according to claim 1 of the appended claims, the sliding surface of the second member having a sliding surface mutually slide relatively on the basis of the operation of the shift lever, A foreign object escape portion is provided for releasing foreign matter that has entered between the sliding surfaces of the two members. For this reason, the foreign material which entered between the sliding surfaces of the two members can be released to the foreign material relief portion of the sliding surfaces of the two members as the two members slide relative to each other. Therefore, it is possible to prevent or reduce a decrease in slidability between the two members due to the biting of foreign matter between the sliding surfaces of the two members.

Moreover , the foreign substance escape part is formed by the groove. For this reason, the foreign material which entered between the sliding surfaces of the two members can be released into the foreign material escape portion, that is, the groove.

Further , the groove is formed so as to have a relationship intersecting with each other in the surface contact state of the sliding surface with respect to the sliding surface of the two members. For this reason, the foreign matter that has entered between the sliding surfaces of the two members can be released into the groove of each sliding surface as the two members slide relative to each other.

Further, according to the shift position detecting device for a shift lever device according to claim 2 of the claims, the sliding surface of one of the two members has the other sliding member within the sliding range of the two members. A groove that the groove on the sliding surface of the member crosses over its entire length is formed. For this reason, as the two members slide relative to each other, the groove on the sliding surface of the other member crosses the groove on the sliding surface of the other member over the entire length, thereby The foreign matter that has entered between the sliding surfaces can be efficiently released into the groove of each sliding surface.

  Next, the best mode for carrying out the present invention will be described with reference to examples.

[Example 1]
Example 1 of the present invention will be described. In this embodiment, for example, a shift-by-wire type shift lever device used in a hybrid vehicle is illustrated. This shift lever device selects a shift position for the shift operation of the automatic transmission and the torque control of the electric motor by operating the shift lever, and electrically detects the shift position of the shift lever. It has. For convenience of explanation, the shift position detection device will be described after the description of the shift lever device. Further, the front-rear direction of the shift lever device conforms to the front-rear direction of the vehicle, and the left-right direction conforms to the left-right direction of the vehicle. 1 is a side sectional view showing the shift lever device, FIG. 2 is a sectional view taken along the line II-II in FIG. 1, and FIG. 3 is an exploded perspective view showing the shift lever device.

The shift lever device will be described. As shown in FIGS. 1 and 2, the shift lever device 10 includes a base bracket 12 and a shift lever 14.
As shown in FIG. 3, the base bracket 12 is made of, for example, a resin, and is formed in a substantially rectangular tube shape having an upper surface and a lower surface opened. The rear plate portion 16 of the base bracket 12 is inclined upward and downward. Accordingly, both side plate portions 17 are formed in a substantially trapezoidal plate shape. The base bracket 12 can be fixed to a fixed member in a vehicle floor console (not shown) with a bolt or the like.

  A detecting device mounting portion 19 is formed on the rear plate portion 16 of the base bracket 12. The detecting device mounting portion 19 is formed so that a shift position detecting device 50 (described later) can be fitted therein, and an opening hole 19a is formed in the bottom surface portion thereof. Further, a shift shaft 21 extending in the left-right direction is installed under the side plate portions 17 of the base bracket 12 (see FIG. 2).

  As shown in FIG. 2, in the base bracket 12, a support member 23 made of, for example, resin is supported on the shift shaft 21 so as to be rotatable in the front-rear direction, that is, in the shift direction (left-right direction in FIG. 1). . On the support member 23, there is formed a guide tube portion 24 having a long rectangular tube shape having an upper surface opened and extending in the left-right direction. A notch recess 25 is formed in the upper portion of the rear side wall of the guide tube portion 24 (see FIG. 3).

As shown in FIG. 3, the shift lever 14 has a lever body 27 made of, for example, a metal rod-shaped member, and a resin lever base 28 integrated with the lower end of the lever body 27 by insert molding. is doing.
As shown in FIG. 2, the lever base 28 is movable in the left-right direction, that is, in the select direction, with a virtual axis 30L extending in the front-rear direction set below the guide cylinder 24 of the support member 23 as a center. That is, it is slidably provided.

  As shown in FIG. 1, an interlocking arm 31 that protrudes rearward is protruded on the rear side surface of the lever base 28. The interlocking arm 31 is disposed in the notch recess 25 of the support member 23 so as to be movable in the select direction (the front and back direction in FIG. 1). A spherical coupling portion 32 is provided on the front end portion, that is, the rear end portion of the interlocking arm 31. In addition, the connection part 32 is engaged in the engagement cylinder part 62 of the interlocking member 53 of the shift position detection apparatus 50 mentioned later.

  As shown in FIG. 2, a plunger 34 that is movable in the vertical direction and a plunger spring 35 that is a coil spring that constantly urges the plunger 34 upward are incorporated in the lever base 28. The plunger 34 is slidably brought into contact with a cam surface 45 of a gate member 40 described later with an urging force of a plunger spring 35.

  The upper end opening surface of the support member 23 is closed by a resin cover member 37, for example. The cover member 37 is formed with a through hole 38 through which the lever body 27 and the plunger 34 of the shift lever 14 are penetrated and which allows the lever body 27 and the plunger 34 to move in the shift direction (see FIG. 3). .

  As shown in FIGS. 1 and 2, the upper surface of the base bracket 12 is closed by a gate member 40. The gate member 40 has a gate hole 41 through which the lever body 27 of the shift lever 14 passes. It is assumed that a shift knob (not shown) gripped by the driver of the vehicle is attached to the upper end portion of the lever 27 of the shift lever 14 penetrating the gate hole 41. FIG. 4 is a plan view showing the gate hole of the gate member.

  As shown in FIG. 4, the gate hole 41 is formed in an H shape corresponding to the shift pattern, and the two left and right shift lines 42L and 43L extending in the vertical direction and both the shift lines 42L and 43L are laterally extended. And a select line 44L that communicates in the direction. The shift lever 14 (see FIGS. 1 and 2) is shifted along the shift lines 42L and 43L, and is selected along the select line 44L. Further, during the shift operation along the shift lines 42L and 43L, the shift lever 14 is rotated in the shift direction (left and right direction in FIG. 1) with the shift shaft 21 as a rotation center. Further, during the selection operation along the selection line 44L, the shift lever 14 is rotated in the selection direction (left-right direction in FIG. 2) about the virtual axis 30L with respect to the support member 23 provided with the cover member 37. The

  In the gate hole 41 (see FIG. 4), an H (home) position is set at the intersection of the left shift line 42L and the select line 44L, and the right shift line 43L and the select line 44L intersect. N (neutral) position is set in the part. Further, a + (shift up) position is set on the front side (upper side in FIG. 4) of the left shift line 42L, and a-(shift down) position on the rear side (lower side in FIG. 4) of the left shift line 42L. Is set. Further, an R (reverse) position is set on the front side (upper side in FIG. 4) of the right shift line 43L, and a D (drive) position is set on the rear side (lower side in FIG. 4) of the right shift line 43L. Has been.

  As shown in FIG. 2, a cam surface 45 is formed on the lower surface of the gate member 40. A plunger 34 provided on the lever base 28 of the shift lever 14 is slidably abutted on the cam surface 45 with a biasing force of a plunger spring 35. Thus, when the shift lever 14 is operated, the shift lever 14 is always returned to the H position, which is the reference position, by the elasticity of the plunger spring 35 as the operating force is released. The plunger 34, the plunger spring 35, and the cam surface 45 constitute a return mechanism 46 for returning the shift lever 14 to the H position. The shift lever 14 operated to the D position or the R position is returned to the H position via the N position.

  Next, the shift lever device shift position detection device (simply referred to as “shift position detection device”) 50 will be described. As shown in FIG. 1, the shift position detecting device 50 electrically detects the shift position selected by the shift lever 14 and outputs a position detection signal, that is, a position signal. 12 is fixed in a state of being fitted to a detection device mounting portion 19 provided on the rear plate portion 16. Further, for convenience, the shift position detection device 50 has the side facing the rear plate portion 16 of the base bracket 12 and facing the front lower side as the front side, and the side facing the upper side thereafter as the rear side. The description is based on the direction. 5 is a perspective view showing the relationship between the shift position detecting device and the connecting portion of the shift lever, and FIG. 6 is an exploded perspective view showing the shift position detecting device.

As shown in FIG. 6, the shift position detection device 50 includes a housing case 51, a sensor substrate 52, an interlocking member 53, a relay member 54, and a holder member 55. Hereinafter, it demonstrates in order.
The accommodating case 51 accommodates the sensor substrate 52, and is formed in a thin box shape that is thinned in the front-rear direction and opened on the front side by a resin material. A pair of left and right guide pieces 57 extending in the vertical direction are projected in parallel on the bottom surface, that is, the front surface in the housing case 51. The guide piece 57 protrudes forward through a slit hole 61 (described later) of the sensor substrate 52, and supports the interlocking member 53 so as to be slidable in the vertical and horizontal directions, whereby the sensor substrate 52 and the interlocking member are supported. The interval between the two is maintained at a predetermined amount.

  The sensor substrate 52 is formed in a rectangular plate shape, and a connector socket 59 is provided in the lower part thereof. The connector socket 59 is connected to a vehicle side connector (not shown) provided on the vehicle side. On the sensor substrate 52, a suitable number of front surface is mounted, that is, in the present embodiment, a total of seven position detection sensors 60 are mounted, that is, two in the upper and lower rows and four on the upper row side and three on the lower row side. ing.

  The position detection sensor 60 includes a Hall IC that detects a magnetic field acting in a predetermined direction. The position detection sensor 60 outputs an on signal (1) when a magnetic field in a predetermined direction is detected, and outputs an off signal (0) when the magnetic field is not detected. In addition, the output signal corresponding to the shift position of the shift lever 14 is combined with the sensor substrate 52 by combining the output signals (ON signal (1), OFF signal (0)) of a total of seven position detection sensors 60. A signal output circuit (not shown) for generating (referred to as “position signal”) is formed. An output signal generated by the signal output circuit is output to a vehicle-side electronic control unit so-called ECU (not shown) via a connector socket 59 and a vehicle-side connector (not shown). The ECU determines the shift position of the shift lever 14 based on the position signal from the shift position detection device 50, and performs an operation for shifting the automatic transmission (not shown) and controlling the electric motor according to the shift position. Control etc.

  The sensor substrate 52 is formed with a pair of left and right slit holes 61 extending parallel to the vertical direction. The sensor substrate 52 is fixed in a superposed state on the bottom surface in the housing case 51. At this time, the guide pieces 57 of the housing case 51 are inserted into the slit holes 61 of the sensor substrate 52, so that the leading ends of the guide pieces 57 protrude on the mounting surface (front surface) of the sensor substrate 52. .

  The interlocking member 53 is formed in a square plate shape by injection molding a resin material mixed with a ferrite powder or the like. At the center of the front surface of the interlocking member 53, a rectangular tube-shaped engagement tube portion 62 is formed. In the engaging cylinder portion 62, the connecting portion 32 of the interlocking arm 31 in the shift lever 14 of the shift lever device 10 can be engaged (see FIGS. 1 and 5). Therefore, the interlocking member 53 is displaced, that is, moved in the vertical and horizontal directions in conjunction with the operation of the shift lever 14. The engagement cylinder portion 62 of the interlocking member 53 is detected as the shift position detection device 50 is attached to the detection device mounting portion 19 provided on the rear plate portion 16 of the base bracket 12 of the shift lever device 10. It is loosely fitted in the opening hole 19a of the device mounting portion 19, and moves in the opening hole 19a in conjunction with the operation of the shift lever 14 (see FIG. 1).

  A pair of left and right vertical guide grooves 63 extending in the vertical direction, that is, the vertical direction are formed in parallel on the left and right ends of the front surface of the interlocking member 53. In addition, a sensing pattern 64 (see FIG. 7) facing the mounting surface (front surface) of the sensor substrate 52 is provided on the rear surface of the interlocking member 53. The sensing pattern 64 will be described later.

  As shown in FIG. 6, the relay member 54 is formed in a rectangular frame shape by a resin material, and is formed on the front surfaces of the pair of left and right square bar-shaped vertical rail portions 66 and both the upper and lower ends of both vertical rail portions 66. It is provided with a horizontal rail portion 67 having a rectangular bar shape that is paired up and down. Both the vertical rail portions 66 are engaged with the vertical guide groove 63 of the interlocking member 53 so as to be slidable in the vertical direction. Further, both lateral rail portions 67 are engaged with a lateral guide groove 70 formed on the rear surface side of a holder member 55 (described later) so as to be slidable in the left-right direction.

  The holder member 55 is formed in a thin box shape that is thinned in the front-rear direction by a resin material and opens on the rear side. The holder member 55 is mounted in the housing case 51 so as to close the front surface thereof. The interlocking member 53 and the relay member 54 are accommodated in the holder member 55. A rectangular window hole 69 is formed at the center of the holder member 55. Through the window hole 69, the engaging tube portion 62 of the interlocking member 53 protrudes forward (see FIGS. 1 and 5). The window hole 69 is formed to allow the displacement of the engagement cylinder portion 62 due to the sliding of the interlocking member 53 that is interlocked with the operation of the shift lever 14 of the shift lever device 10.

  A pair of upper and lower lateral guide grooves 70 extending in the lateral direction, that is, the lateral direction are formed in parallel on the rear surface, that is, the rear surface of the front plate portion of the holder member 55 (see FIG. 6). Both lateral rails 67 of the relay member 54 are engaged with both lateral guide grooves 70 so as to be slidable in the left-right direction. Therefore, the interlocking member 53 moves laterally in the left-right direction due to the sliding of both lateral rail portions 67 of the relay member 54 with respect to both lateral guide grooves 70 of the holder member 55, and to the both vertical rail portions 66 of the relay member 54. It can be moved or displaced in the vertical and horizontal directions by a combined operation with vertical movement in the vertical direction due to sliding of both vertical guide grooves 63 of the interlocking member 53. The interlocking member 53 is displaced in the vertical and horizontal directions with a predetermined distance from the sensor substrate 52 by sliding on the tip surfaces of both guide pieces 57 in the housing case 51.

  In the left portion of the holder member 55, a pressing member 72 that is movable in the left-right direction and a pressing spring 73 that is a coil spring that constantly biases the pressing member 72 to the right are incorporated. The pressing member 72 is brought into contact with the engaging cylinder portion 62 of the interlocking member 53 with the urging force of the pressing spring 73 (see FIG. 5). The pressing member 72 and the pressing spring 73 constitute a pressing mechanism 74 that presses the interlocking member 53 to the right.

Next, the sensing pattern provided on the rear surface of the interlocking member 53 facing the mounting surface (front surface) of the sensor substrate 52 with a predetermined interval will be described. FIG. 7 is an explanatory diagram showing a sensing pattern.
As shown in FIG. 7, the sensing pattern 64 includes seven sensing regions 76 corresponding to the position detection sensors 60. Note that the sensing pattern 64 in FIG. 7 is shown in a state corresponding to each position detection sensor 60 when the shift lever 14 is in the H position. In FIG. 7, individual numbers (1) to (7) are added to the position detection sensor 60 and the sensing area 76.

  Each sensing region 76 includes a reaction region 76a (see hatched portion) detected by the position detection sensor 60 and a non-reaction region 76b (see blank portion) where the position detection sensor 60 is not detected in three vertical rows. They are arranged in a two-dimensional two-dimensional array. The reaction region 76a is a region magnetized in the S pole, and the non-reaction region 76b is a region magnetized in the N pole. Therefore, the position detection sensor 60 outputs an ON signal (1) when facing the reaction region 76a, and outputs an OFF signal (0) when facing the non-reaction region 76b.

  In each sensing region 76, 3 to 4 reaction regions 76a and 2 to 3 non-reaction regions 76b are arranged in different arrangement forms. Accordingly, each position detection sensor outputs a predetermined output signal corresponding to the shift position of the shift lever. FIG. 8 is an explanatory diagram showing the relationship between each shift position of the shift lever and the output signal of each position detection sensor.

  In FIG. 8, the left column of each row indicates each shift position R, N, D, +, H, and −, and the upper column of each column indicates each position detection sensor 60 (1) to (7). . The output signals of the position detection sensors 60 (1) to (7) at each shift position are represented by “1” (ON signal) or “0” (OFF signal).

  A signal output circuit (not shown) of the sensor board 52 outputs a position signal corresponding to the shift position of the shift lever 14 based on a combination of output signals (see FIG. 8) of the position detection sensors 60. To do. In this embodiment, each sensing is performed so that a position signal forming a Hamming code sequence can be obtained, that is, for any combination of two position signals, the bit value of at least 4 bits in 7 bits is different. Region 76 is formed (see FIGS. 7 and 8). Therefore, even when a trouble occurs in any of the position detection sensors 60, it is possible to correct an error in the position signal and output a correct position signal. Even if a trouble occurs in the two position detection sensors 60, the occurrence of the trouble can be detected. The function for correcting an error in the position signal and the function for detecting that a trouble has occurred in the position detection sensor 60 are configured as a function of the shift position detection device 50 and a function of the ECU that outputs the position signal. Can be configured.

Next, the detection operation of the shift position detection device 50 accompanying the operation of the shift lever 14 of the shift lever device 10 will be described. Here, the operation when the shift lever 14 selects the D position is illustrated.
If the shift lever 14 in the H position is selected along the select line 44L, the lever base 28 of the shift lever 14 slides along the support member 23, so that the N position is selected. Accordingly, the interlocking member 53 is moved, that is, displaced to a position corresponding to the N position by the connecting portion 32 of the shift lever 14. Then, a position signal corresponding to the N position is output from each position detection sensor 60.

  Subsequently, when the shift lever 14 is shifted along the shift line 43L, the support member 23 and the shift lever 14 are integrally rotated about the shift shaft 21 to select the D position. Accordingly, the interlocking member 53 is moved or displaced to a position corresponding to the D position by the connecting portion 32 of the shift lever 14. Then, each position detection sensor 60 outputs a position signal corresponding to the D position.

Thereafter, when the operating force on the shift lever 14 is released, the shift lever 14 is returned to the N position along the shift line 43L by the return action of the return mechanism 46. Accordingly, the interlocking member 53 is moved, that is, displaced to a position corresponding to the N position by the connecting portion 32 of the shift lever 14. Then, a position signal corresponding to the N position is output from each position detection sensor 60.
Subsequently, the shift lever 14 is returned to the H position along the select line 44 </ b> L by the return action of the return mechanism 46. Accordingly, the interlocking member 53 is moved, that is, displaced to a position corresponding to the H position by the connecting portion 32 of the shift lever 14. Then, each position detection sensor 60 outputs a position signal corresponding to the H position.

  Next, a configuration for preventing a decrease in slidability between two members in the shift position detecting device 50 will be described. In the shift position detecting device 50 (see FIG. 6), as the two members having sliding surfaces that slide relative to each other based on the operation of the shift lever 14, two members of the interlocking member 53 and the relay member 54 described above are used. The members and the two members of the relay member 54 and the holder member 55 are equivalent. In the present embodiment, a description will be given of a configuration implemented in order to prevent a decrease in slidability between two members of the interlocking member 53 and the relay member 54. 9 is a perspective view showing a relationship between the interlocking member and the relay member, and FIG. 10 is a perspective view showing a sliding surface of the interlocking member.

  As shown in FIG. 9, the vertical guide grooves 63 of the interlocking member 53 are formed symmetrically. The longitudinal guide groove 63 is formed by a groove bottom surface 63a and a groove wall surface 63b. The groove bottom surface 63a and the groove wall surface 63b are perpendicular to each other. Further, each longitudinal rail portion 66 of the relay member 54 slidably engaged with each longitudinal guide groove 63 of the interlocking member 53 is formed symmetrically, and the longitudinal guide groove of the interlocking member 53 is formed. It has a rail surface 66a that slides in a surface contact state with respect to the groove bottom surface 63a of 63, and a rail side surface 66b that slides in a surface contact state with the groove wall surface 63b of the longitudinal guide groove 63. The rail surface 66a and the rail side surface 66b are perpendicular to each other. Further, the groove bottom surface 63a and the groove wall surface 63b of the vertical guide groove 63, and the rail surface 66a and the rail side surface 66b of the vertical rail portion 66 are basically formed as flat surfaces. The groove bottom surface 63a of the longitudinal guide groove 63, the rail surface 66a of the longitudinal rail portion 66, the groove wall surface 63b of the longitudinal guide groove 63, and the rail side surface 66b of the longitudinal rail portion 66 are referred to as “shift lever” in this specification. This corresponds to a “sliding surface that slides relative to the other”.

  Among the sliding surfaces 63a, 63b, 66a, 66b, on the groove bottom surface 63a of the vertical guide groove 63, as shown in FIG. 10, an appropriate number (4 in the figure) extending in the vertical direction, that is, in the vertical direction. (Showing a book) is formed at equal intervals in the left-right direction. The groove 80 is formed in a quadrangular cross section, and its upper and lower ends are opened. Further, the groove 80 positioned at the outer end portion of the interlocking member 53 is opened on the outer side surface 53 a of the interlocking member 53. Further, the groove wall surface 63 b of the groove 80 located on the center side of the interlocking member 53 is continuous with the groove wall surface 63 b of the longitudinal guide groove 63. The groove 80 corresponds to a “foreign material escape portion” in this specification.

  According to the shift position detecting device 50 described above, the interlocking member (one member) of the two members of the interlocking member 53 and the relay member 54 having sliding surfaces that slide relative to each other based on the operation of the shift lever 14. ) A groove 80 for escaping foreign matter that has entered between the groove bottom surface 63a of the longitudinal guide groove 63, which is the sliding surface of 53), between the groove bottom surface 63a and the rail surface 66a of the vertical rail portion 66 of the relay member 54. Is provided. For this reason, the foreign matter that has entered between the groove bottom surface 63 a of the longitudinal guide groove 63 of the interlocking member 53 and the rail surface 66 a of the longitudinal rail portion 66 of the relay member 54 is relatively dissipated between the interlocking member 53 and the relay member 54. Along with the sliding, it can escape into the groove 80 of the groove bottom surface 63a of the longitudinal guide groove 63 of the interlocking member 53. Accordingly, between the interlocking member 53 and the relay member 54 due to the biting of foreign matter between the groove bottom surface 63a of the longitudinal guide groove 63 of the interlocking member 53 and the rail surface 66a of the vertical rail portion 66 of the relay member 54. A decrease in slidability can be prevented or reduced.

  Further, the groove 80 extends in the vertical direction, that is, in the direction of gravity. For this reason, the foreign matter escaped into the groove 80 can be discharged downward in the groove 80 by gravity.

[Example 2]
A second embodiment of the present invention will be described. In this embodiment, a part of the structure for preventing the deterioration of the slidability between the two members in the shift position detecting device 50 of the first embodiment is changed. Description is omitted. FIG. 11 is a perspective view showing the sliding surface of the interlocking member and the sliding surface of the relay member.

  As shown in FIG. 11, a large number of linear strips (denoted by reference numeral 80A) are formed on the groove bottom surface 63a of the longitudinal guide groove 63 of the interlocking member 53. 80 A of groove | channels are formed in the inclined form with the gradient which makes the center side of the interlocking member 53 high and makes the outer side low. Further, the lower ends of all the grooves 80A are opened. The groove 80A corresponds to a “foreign material escape portion” as used in this specification.

  A plurality of grooves 80B are formed on the rail surface 66a of the vertical rail portion 66 of the relay member 54. The groove 80B is formed in an inclined shape with a gradient that increases the outside of the vertical rail portion 66 and decreases the inside thereof. Accordingly, when the vertical rail portion 66 of the relay member 54 is engaged with the vertical guide groove 63 of the interlocking member 53, that is, the surface contact state between the groove bottom surface 63 a of the vertical guide groove 63 and the rail surface 66 a of the vertical rail portion 66. Then, each groove 80B of the vertical rail portion 66 of the relay member 54 intersects each groove 80A of the interlocking member 53. Moreover, the lower ends of all the grooves 80B are opened. The groove 80B corresponds to a “foreign material escape portion” as used in this specification.

  Accordingly, at least one strip groove 80A of the many interlocking members 53 and at least one strip groove 80B of the many relay members 54 are connected to the interlocking member 53 and the relay member 54. In the sliding range, the groove 80B or 80A of the other member crosses over the entire length.

Also with the shift position detecting device 50 according to the second embodiment described above, it is possible to obtain the same operations and effects as in the first embodiment.
The groove 80A, 80B is in contact with the groove bottom surface 63a and the rail surface 66a with respect to the groove bottom surface 63a of the longitudinal guide groove 63 of the interlocking member 53 and the rail surface 66a of the vertical rail portion 66 of the relay member 54. Each is formed so as to have a crossing relationship with each other. For this reason, the foreign matter that has entered between the groove bottom surface 63a of the longitudinal guide groove 63 of the interlocking member 53 and the rail surface 66a of the longitudinal rail portion 66 of the relay member 54 is caused to slide relative to the interlocking member 53 and the relay member 54. With movement, it can escape into the groove 80A of the groove bottom surface 63a and the groove 80B of the rail surface 66a.

  Further, at least one groove 80 </ b> A of the many interlocking members 53 and at least one groove 80 </ b> B of the many relay members 54 slide between the interlocking member 53 and the relay member 54. Within the range, the groove 80B or 80A of the other member crosses over its entire length. For this reason, as the interlocking member 53 and the relay member 54 slide relative to each other, at least one of the multiple grooves 80A of the interlocking member 53 and at least one of the multiple relay members 54 are included. The groove 80B or 80A of the other member traverses the entire length of the groove 80B of the book, so that the groove bottom surface 63a of the longitudinal guide groove 63 of the interlocking member 53 and the vertical rail portion 66 of the relay member 54 are obtained. The foreign matter that enters between the rail surfaces 66a can be efficiently released into the grooves 80A and 80B.

  The present invention is not limited to the above-described embodiments, and modifications can be made without departing from the gist of the present invention. For example, the shift position detection device according to the present invention is not limited to a shift-by-wire type, but is used for automatic transmissions such as a type that shifts an automatic transmission via a shift cable and a link mechanism, and a sequential type that includes a manual transmission mode. The present invention can also be applied to a shift lever device or a shift lever device for an electric vehicle. Moreover, the shift position detection device according to the present invention is not limited to a floor console, and can also be applied to a shift lever device installed on an instrument panel, a steering column, or the like. Further, the shift position detecting device according to the present invention is not limited to the shift lever device having the H-shaped shift pattern in the above-described embodiment, but is a shift pattern such as h-shaped, I-shaped, stepped (so-called gate type). The present invention can also be applied to the shift lever device. Further, the shift position detecting device according to the present invention is not limited to the shift lever device configured to return the shift lever 14 to the reference position (H position) by the action of the return mechanism 46, and the shift lever 14 is held at the selected shift position. The present invention can also be applied to the shift lever device 10 configured as described above.

  In the shift lever device of the above embodiment, the operation direction around the shift shaft 21 of the shift lever 14 is the shift direction, and the operation direction around the virtual axis 30L is the select direction. It is also conceivable that the operation direction around the 14 shift shafts 21 is the select direction and the operation direction around the virtual axis 30L is the shift direction. In the above-described embodiment, the virtual axis 30L is set on the non-operating side (lower side) with respect to the shift shaft 21, but is set on the operating side (upper side) with respect to the shift shaft 21, or It is also conceivable to set it at a position intersecting with the axis line. Further, when the virtual axis 30L is set at a position far from the shift operation side (downward) with respect to the shift shaft 21, the shift lever 14 can be selected by a rotation close to parallel movement. For this reason, it can be considered that the support member 23 is omitted by providing the shift lever 14 so as to be movable in the axial direction with respect to the shift shaft 21. It is also conceivable that the shift lever 14 can be moved around the virtual axis in both the shift direction and the select direction.

In the shift position detection device 50 of the above embodiment, a Hall IC is used as the position detection sensor 60. Instead, a magnetoresistive element, a Hall element, a photo sensor, a contact type position detection sensor, and the like are employed. can do. Further, the foreign substance escape portion in the shift position detection device can be provided on the rail surface 66 a of the vertical rail portion 66 of the relay member 54. Further, the foreign substance escape portion can be provided on the groove wall surface 63 b of the vertical guide groove 63 of the interlocking member 53 and the rail side surface 66 b of the vertical rail portion 66 of the relay member 54. Further, the foreign object escape portion may be provided on two members that slide relative to each other based on the operation of the shift lever 14 in the shift position detecting device, and the two members are the interlocking members in the above-described embodiment. 53 and the two members of the relay member 54 and the two members of the relay member 54 and the holder member 55 are not limited. Further, the sliding surface of the two members may be a surface that slides relatively, and is not limited to a flat surface, and can be formed by a curved surface, a polygonal surface, or the like. Moreover, the foreign material escape part should just be formed so that the foreign material which entered between the sliding surfaces of two members may escape, and is not restricted to the linear groove of the said Example, For example, a curved groove, It can be formed by a combination of straight and / or curved strips, intermittent strips, etc. The cross-sectional shape is not limited to a quadrangle, but a semicircular, U-shaped, V It can be formed in a letter shape or the like, and the number, shape, arrangement form, etc. of the foreign substance escape portion are not limited. The sliding surfaces of the two members are not limited to the L-shaped cross section, but can be formed in a U-shaped cross section, a U-shaped cross section, a semicircular cross section, a V-shaped cross section, or the like.

It is a sectional side view which shows the shift lever apparatus concerning Example 1 of this invention. It is the II-II sectional view taken on the line of FIG. It is a disassembled perspective view which shows a shift lever apparatus. It is a top view which shows the gate hole of a gate member. It is a perspective view which shows the relationship between the shift position detection apparatus and the connection part of a shift lever. It is a disassembled perspective view which shows a shift position detection apparatus. It is explanatory drawing which shows a sensing pattern. It is explanatory drawing which shows the relationship between each shift position of a shift lever, and the output signal of each position detection sensor. It is a perspective view which shows the relationship between an interlocking member and a relay member. It is a perspective view which shows the sliding surface of an interlocking member. It is a perspective view which shows the sliding surface of the interlocking member concerning Example 2 of this invention, and the sliding surface of a relay member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Shift lever apparatus 14 Shift lever 50 Shift position detection apparatus 53 Interlocking member 54 Relay member 63 Vertical direction guide groove 63a Groove bottom face (sliding surface)
66 Vertical rail 66a Rail surface (sliding surface)
80 groove (foreign material relief)
80A groove (foreign material relief)
80B groove (foreign material relief)

Claims (2)

A shift position detection device for a shift lever device that electrically detects a shift position of the shift lever in a shift lever device that selects a shift position by operating a shift lever,
Comprising two members having sliding surfaces that slide relative to each other based on the operation of the shift lever;
The sliding surface of the two members is provided with a foreign material escape portion for escaping foreign materials that have entered between the sliding surfaces of the two members ,
The foreign object escape portion is formed by a groove,
The shift position detection for a shift lever device , wherein the groove is formed so as to intersect each other in the surface contact state of the sliding surface with respect to the sliding surface of the two members apparatus. A shift position detecting device for a shift lever device according to claim 1 ,
On the sliding surface of one of the two members, a groove is formed across the entire length of the groove on the sliding surface of the other member within the sliding range of the two members. A shift position detecting device for a shift lever device.

Images