WO2019026679A1

WO2019026679A1 - Shift lever unit

Info

Publication number: WO2019026679A1
Application number: PCT/JP2018/027600
Authority: WO
Inventors: 中西　正則; 昭仁野口
Original assignee: 津田工業株式会社
Priority date: 2017-08-02
Filing date: 2018-07-24
Publication date: 2019-02-07

Abstract

A shift lever unit (1) is provided with: a shift lever (10) having a shift knob (11) mounted to the front end thereof; and a grooved pin (18) which is held by the shift lever (10) so as to be displaceable in the axial direction of the shift lever (10) and which is provided with a protrusion (180) protruding to the outer peripheral side in a radial direction through a through-groove (155) open to a side surface of the shift lever (10), and the shift lever unit (1) is configured so that the pivotal displacement of the protrusion (180) caused by the pivoting of the shift lever (10) is prevented to prevent predetermined shift operation. The shift lever unit (1) has the shift lever (10) having: a first structure provided in a movable region in which the grooved pin (18) is displaced in the axial direction in a use state, the first structure limiting the position of the grooved pin (18) in the radial direction; and a second structure provided outside the movable region in the axial direction, the second structure mounting the grooved pin (18) from the outer peripheral side in the radial direction. As a result, the shift lever unit (1) can be easily mounted, and production cost can be easily reduced.

Description

Shift lever unit

The present invention relates to a shift lever unit for a vehicle.

A shift lever unit is conventionally known for switching a shift range set by a transmission of a vehicle by an operation from a vehicle compartment side. A base bracket fixed to the vehicle side pivotally supports the shift lever, and a straight shift lever unit capable of operating the shift lever along the longitudinal direction of the vehicle is generally used.

Many shift lever units are equipped with a safety mechanism for restricting the driver's careless operation. In the above-mentioned straight shift lever unit, for example, a combination of a grooved pin projecting outward from the outer peripheral side surface of the shift lever and a detent window provided on the base bracket to secure a space in which the grooved pin rotates. A safety mechanism including the following has been proposed (see, for example, Patent Document 1 below).

The grooved pin is attached in a direction orthogonal to the detent rod that is inserted into the cylindrical shift lever. The detent rod is urged toward the shift knob by a spring or the like, and driven so as to be pushed out in the axial direction by the driver's pressing operation of the shift button. The grooved pin is displaced in the axial direction of the shift lever in response to axial advancement and retraction of the detent rod.

In the detent window, inner circumferential surfaces having different radial distances with respect to the rotation center of the shift lever are provided corresponding to each shift position. For example, the distance in the radial direction is different between the inner circumferential surface corresponding to the D range and the inner circumferential surface corresponding to the R range, and a step is formed between the two.

In a shift lever provided with such a safety mechanism, the shift operation that the grooved pin needs to get over the step provided on the detent window is restricted. For example, a shift operation from the D (drive) range to the R (reverse) range is performed. In such a case, when the shift button is depressed, the grooved pin can get over the step of the detent window, and the shift operation of rotating the shift lever becomes possible.

Patent No. 4642419 gazette

However, the conventional shift lever unit has the following problems. That is, since it is necessary to firmly fix the grooved pin to the detent rod inserted into the cylindrical shift lever by press-fitting or the like, the press-in process with high process cost is essential and the cost reduction of the shift lever unit is not easy. There is a problem of

The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide a shift lever unit that can be easily reduced in manufacturing cost and easily realized at low cost.

According to the present invention, an operation unit that receives a shift operation for switching a shift position is held by the shift lever attached to the tip thereof and is shiftably movable along the axial direction of the shift lever. And a restricting member provided with a protruding portion projecting radially outward through a through groove opened to the side surface of the shift lever, and restricting the rotational displacement of the protruding portion accompanying the rotation of the shift lever. Shift lever unit that can regulate the shift operation with
The shift lever has a first structure for restricting the radial position of the restricting member within a movable range in which the restricting member is displaced in the axial direction in a use state mounted on a vehicle.
The shift lever unit is provided with a second structure for assembling the restriction member from the outer peripheral side in the radial direction outside the movable range in the axial direction.

In the shift lever unit according to the present invention, the restriction member can be assembled from the outer peripheral side in the radial direction by using the second structure of the shift lever. In the use state of the shift lever unit, the radial position of the regulating member can be regulated by the first structure provided in the movable range of the regulating member, and therefore, there is no risk of the regulating member falling off. .

In the shift lever unit according to the present invention, since the first structure regulates the radial position of the regulating member, it is not necessary to fix the regulating member by fitting by press-fitting or the like. In the assembly operation of the shift lever unit, since the restricting member can be assembled without relying on a press-in operation or the like, it is relatively easy to reduce the product cost by suppressing the manufacturing cost.

The perspective view of a shift lever. The side view of the S / L link side of a shift lever unit. The side view on the other side of a shift lever unit. The side view which shows the S / L link of a shift unlocking state. The perspective view of S / L link. Sectional drawing which shows the cross-section of a shift lever (AA section in FIG. 2). Front and side views of the S / L link. Sectional drawing of the S / L link (the BB cross section in FIG. 7 (a)). The structural view which shows the assembly structure of a shift lever. The figure which shows the internal structure of a shift knob. The side view and partial sectional view of a shift lever body. Explanatory drawing which shows the attachment structure of the grooved pin with respect to a detent rod. Explanatory drawing which shows the contact | abutting structure of a grooved pin and S / L link. The figure which shows the combination of another grooved pin and a detent rod.

The shift lever unit of the present invention may be provided with a shift lock mechanism for restricting an operation not intended by the driver. As a shift lock mechanism, for example, a shift lever unit provided with a shift lock mechanism including a grooved pin (detent pin) displaced to a regulated position for regulating a shift operation and a release position for allowing shift operation has been proposed ( See, for example, Patent Document 1 above).

In this shift lever unit, a shift lock link that regulates the displacement of the grooved pin is adopted in order to prevent sudden start of the vehicle due to an erroneous shift operation and the like. The shift lock link is located in the path of the grooved pin from the restricted position to the release position, and regulates the displacement of the grooved pin toward the release position. The shift lock link is driven by an electromagnetic magnet that is energized in response to a depression operation of the brake, and is displaced to a position that allows displacement of the grooved pin.

However, the shift lever unit adopting the above shift lock link has the following problems. That is, if the contact load of the grooved pin with respect to the shift lock link is excessive, there is a possibility that lateral shift occurs between them and the regulation by the shift lock link may be released. The high rigidity design of the component parts is required, and the increase in size and weight of the parts may hinder the downsizing and cost reduction of the entire unit.

Therefore, in the shift lock lever unit according to the present invention, a lock member is provided in contact with the projecting portion to restrict displacement of the restricting member along the axial direction.
Preferably, at least one of the protrusion and the lock member is provided with a contact holding structure for holding a state in which the protrusion is in contact with the lock member.
In the shift lever unit adopting such a contact holding structure, the possibility that the restriction of the restriction member by the lock member is released is reduced. In this shift lever unit, it is possible to reduce the necessity of designing to secure high rigidity of the restricting member and the lock member, and to suppress enlargement and weight increase of parts accompanying high rigidity design which enhances rigidity.

Embodiments of the present invention will be specifically described using the following examples.
Example 1
This example is an example regarding the shift lever unit 1 for vehicles provided with a shift lock function. The contents will be described with reference to FIGS. 1 to 14.
The shift lever unit 1 illustrated in FIGS. 1 to 3 is a unit for operating a rod-like shift lever 10 to which a shift knob 11 serving as an operation unit is attached at its tip. FIG. 1 is a view of the shift lever 10 in which the base bracket 3 is not shown, and FIGS. 2 and 3 are side views of both sides of the shift lever unit 1. In FIG. 1A, FIG. 2 and FIG. 3, the shift knob 11 is not shown.

The shift lever unit 1 has a diameter via a shift lever 10 to which a shift knob (operation unit) 11 for receiving a shift operation for switching a shift position is attached at its tip and a through groove 155 provided on the side of the shift lever 10 And a grooved pin (regulating member) 18 provided with a projecting portion 180 projecting to the outer peripheral side in the direction. In the shift lever unit 1, the shift operation is restricted by restricting the rotational displacement of the protrusion 180 caused by the rotation of the shift lever 10. The grooved pin 18 is held by the shift lever 10 so as to be displaceable along the axial direction of the shift lever 10, and the axial displacement allows the grooved pin 18 to be positioned at a release position where the shift operation is permitted.

The shift lever 10 restricts the position of the grooved pin 18 in the radial direction of the shift lever 10 over the entire movable range in which the grooved pin 18 is displaced in the axial direction of the shift lever 10 in a use state mounted on a vehicle. A structure is provided. A second structure for assembling the grooved pin 18 from the outer peripheral side in the radial direction of the shift lever 10 is provided at a position outside the movable range in the axial direction of the shift lever 10.

Furthermore, the shift lever unit 1 interferes with the protrusion 180A on one side of the protrusions 180 at both ends of the grooved pin 18, thereby restricting the displacement of the grooved pin 18 in the axial direction of the shift lever 10 and performing the shift operation. The shift lock link (lock member, hereinafter referred to as S / L link) 21 to be eliminated is provided. In this shift lever unit 1, a contact holding structure for holding a state in which the protrusion 180A contacts the S / L link 21 with at least one of the grooved pin 18 and the S / L link 21 (referred to as a shift lock state). It is provided.

The contents of the shift lever unit 1 will be described in detail below. In the following description, the axial direction of the shift lever 10 is simply referred to as the axial direction, and the radial direction of the shift lever 10 is simply referred to as the radial direction. In the description of the components of the shift lever 10 such as the detent rod 12, the direction along the axial or radial direction of the shift lever 10 in the assembled state is simply referred to as the axial or radial direction. However, for example, the “radial direction” in the description “the radial direction centering on the bracket side axial hole 300” provided in the base bracket 3 is different from the radial direction of the shift lever 10 described above.

The shift lever unit 1 illustrated in FIGS. 1 to 3 is a straight operation unit capable of operating the shift lever 10 in a shift direction corresponding to the longitudinal direction of the vehicle (not shown). The shift lever unit 1 is installed on a center console between a driver's seat and a front passenger seat, a dash panel facing the driver, or the like so that the driver can easily operate the shift lever 10. At the tip of the shift lever 10, a shift knob 11 which is a handle of the driver is attached.

Although not shown, according to the shift lever unit 1, a parking range (P range), a reverse range (R range), a neutral range (N range), which are arranged along the shift direction from the front side in the traveling direction of the vehicle One of the drive range (D range), the second range and the low range can be selected as the shift position.

The shift lever unit 1 is provided with a base bracket 3 for pivotally supporting the shift lever 10 as shown in FIGS. 2 and 3. The shift lever unit 1 is mounted on the vehicle side using a base bracket 3 so that the shift lever 10 protrudes toward the passenger compartment via a shift panel (not shown). A shift panel (not shown) on the vehicle side is provided with a keyhole (not shown) for forcibly releasing the shift lock function.

A bracket-side shaft hole 300 for fixing the shift shaft 100 is bored in the side walls 30 on both sides of the base bracket 3 serving as a guide surface for the rotational movement of the shift lever 10, and the outer peripheral side of the shift lever 10 The detent window 32 and the passage groove 321 which penetrate the protrusion part 180 of the grooved pin 18 which sticks out are drilled (refer FIG. 4). Furthermore, on the side wall 30 on the side shown in FIG. 2, the S / L link 21 for restricting the displacement of the protrusion 180A to the release position where the shift operation is possible, and the S / L link 21 are rotationally driven. An electromagnetic solenoid 24 is attached. The detent windows 32 and the passage grooves 321 of the side walls 30 have the same shape and specifications.

The entire shape of the detent window 32 can be confirmed in FIG. 4 which shows a state in which the S / L link 21 is rotationally driven. The detent window 32 is a through window extending in the circumferential direction around the bracket side axial hole 300, and is a space in which the projecting portion 180 is rotationally displaced when a shift operation from the P range to another range is performed. The passage groove 321 is a through groove extending in the radial direction centering on the bracket side axial hole 300, and is formed corresponding to the P range. In the P range, the protrusion 180 is in the state of being penetrated and disposed in the path groove 321.

The passage groove 321 communicates with the detent window 32 at the end on the bracket side axial hole 300 as shown in FIG. The restricted position of the projection 180 at which the shift operation from the P range to the other range is restricted and the released position of the projection 180 at which this shift operation is permitted positioned.

The release position of the projecting portion 180 is located in a portion of the path groove 321 communicating with the detent window 32, that is, at the end side closer to the bracket side axial hole 300. The restriction position of the protrusion 180 is located on the end side of the path groove 321 opposite to the bracket side axial hole 300 (position of the protrusion 180 in FIGS. 2 to 4). When the projecting portion 180 is located at the release position, rotational displacement of the projecting portion 180 entering the detent window 32 is possible, and shift operation is permitted. On the other hand, when the projecting portion 180 is positioned at the restricting position, the rotational displacement of the projecting portion 180 is restricted by the inner side wall of the passage groove 321 extending in the radial direction centering on the bracket side axial hole 300. Operation is regulated. When the shift lever unit 1 mounted on a vehicle is in use, the range from the restricted position to the release position of the protrusion 180 is the movable range of the grooved pin 18 (see FIG. 11).

The S / L link 21 is a component constituting a shift lock mechanism by a combination with the grooved pin 18 or the like as shown in FIG. 2, FIG. 4 and FIG. The S / L link 21 is pivotally supported along the side wall 30 by a support shaft 35 (see FIG. 6) erected on the side wall 30 of the base bracket 3.

The S / L link 21 is rotationally driven by the electromagnetic solenoid 24 that switches to the energized state in response to the depression operation of the brake pedal (not shown), and is biased in the opposite direction by a coil spring not shown. In the following description, the side on which the S / L link 21 is rotationally driven by the electromagnetic solenoid 24 is referred to as the drive side, and the side on which the S / L link 21 is biased by the coil spring is referred to as the return side.

As shown in FIGS. 5 and 6, the S / L link 21 has a bottomed cylindrical shaft receiving portion 21C for rotatably receiving the support shaft 35 erected on the side wall 30 of the base bracket 3. ing. A first arm 21A and a second arm 21B are extended on both sides of the shaft accommodation portion 21C (see FIG. 7A). In the first arm 21A, a shaft 210 for attaching a doughnut-shaped stopper rubber (not shown) is provided upright at the tip. In the second arm portion 21B, a load receiving surface 211 on which the grooved pin 18 (projecting portion 180A) abuts is provided on the tip end surface.

The stopper rubber attached to the first arm portion 21A is pressed against the base bracket 3 in accordance with the rotational displacement of the S / L link 21 due to the biasing force of the coil spring described above, and the S / L link 21 is initially rotated. Regulate. According to the stopper rubber which is an elastic member, it is possible to reduce the striking sound which may occur when the S / L link 21 returns to the initial rotational position in response to the end of the energization of the electromagnetic solenoid 24.

Here, the initial rotational position of the S / L link 21 is a position along the path groove 321 provided in the above-mentioned base bracket 3 (the position shown in FIG. 2). The S / L link 21 rotationally driven by the electromagnetic solenoid 24 or the like is displaced to a rotational position out of the path groove 321 (the position shown in FIG. 4). As a result, displacement of the grooved pin 18 (projecting portion 180) along the path groove 321 becomes possible, the shift lock function is released, and the shift unlocked state is established.

At the tip of the second arm 21B, as shown in FIGS. 5 to 7, in addition to the load receiving surface 211, a receiving portion 212 for forcibly releasing the shift lock function is provided. At an intermediate position of the second arm portion 21B, a drive pin 213, in which a connection member 242 driven by the electromagnetic solenoid 24 is locked, is provided upright. Further, on the side surface of the second arm 21B facing the side wall 30 of the base bracket 3, a support portion 214 having a rectangular cross section is provided upright.

The load receiving surface 211 is a surface against which the protruding portion 180 of the grooved pin 18 presses in the shift lock state (see FIG. 13B). Both ends on the drive side and the return side of the load receiving surface 211 project toward the tip end, and the amount of projection increases as the load receiving surface 211 approaches the end. Thus, the entire load receiving surface 211 forms a “bowl-shaped” surface in which inclined surfaces are disposed on both sides of the middle portion of the middle / low in the rotational direction of the S / L link 21 (see FIG. 5, see FIG. 7 (a)).

The receiving portion 212 is an engaging portion of a link member (not shown) interlocked with an operation for forcibly releasing the shift lock function. The forcible release operation is transmitted to the receiving portion 212 via the link member, and the S / L link 21 is driven to the rotational position shown in FIG.

The receiving portion 212 is provided offset to the drive side with respect to the load receiving surface 211 (see FIG. 5). The root of the receiving portion 212 is formed to be flush with the load receiving surface 211, whereby the tip end surface of the second arm 21B including the load receiving surface 211 has a substantially L-shaped front shape. ing. A recess 215 is formed inside the substantially L-shaped front shape. The recess 215 is located on the return side with respect to the receiving portion 212 located on the driving side.

In the side face 216A of the second arm 21B facing the recess 215 in the direction in which the drive pin 213 is erected, the end on the return side overhangs as shown in the sectional view of FIG. 8 (section BB in FIG. 7). It is formed as. The amount of extension of the recess 215 with respect to the internal space increases toward the end, and an inclined surface is formed at the return end of the side surface 216A. As shown in the cross-sectional view, the side surface 216B of the base of the receiving portion 212 is orthogonally adjacent to the end on the driving side of the side surface 216A.

The support portion 214 provided on the second arm portion 21B is formed by the shelf surface 30S provided on the base bracket 3 side and the grooved pin 18 in the shift lock state of FIG. 6 in which the projection 180A abuts on the load receiving surface 211. It will be in the state of being pinched. A part of the load that the grooved pin 18 acts on the S / L link 21 is transmitted to the base bracket 3 side through the support portion 214, and thereby an abutment that acts on the load receiving surface 211 of the tip of the S / L link 21. The load is reduced.

The shift lever 10 is configured centering on a lever main body 15 to which the shift knob 11 is attached at the tip as shown in FIG. 1 and FIG.
The shift knob 11 has a shift button 110 operated by a forefinger or the like of a hand gripping the shift knob 11 on the side surface corresponding to the front side in the front-rear direction of the vehicle. In the inside of the shift knob 11 from which the shift button 110 is removed, a partition wall 113 in which a hole 112 is bored is provided (see FIG. 10). In the shift lever 10 in the assembled state, the end of the detent rod 12, which will be described later, passes through the hole 112 and interferes with the shift button 110.

The lever main body 15 is a rectangular cylindrical resin molded product having a substantially rectangular outer shape in cross section as shown in FIGS. The lever main body 15 has a knob attachment portion 153 of the shift knob 11 on the tip end side. A lever side shaft hole 150 for disposing the shift shaft 100 therethrough is provided in the base 15F on the opposite side. The shift shaft 100 fixed to the bracket-side shaft hole 300 is disposed to pass through the lever-side shaft hole 150. The shift lever 10 is pivotally supported by a shift shaft 100 fixed to the base bracket 3 (see FIGS. 2 and 3).

A through groove 155 is formed in the lever main body 15 along the axial direction. The through groove 155 penetrates in the radial direction and is open on both side surfaces where the lever side axial hole 150 is located. The through groove 155 can be disposed so as to allow the protruding portion 180 of the grooved pin 18 to pass therethrough except for the insertion portion 156 described later, and the groove width is set such that the entire grooved pin 18 can not be inserted. The through groove 155 excluding the insertion portion 156 has an example of a first structure which regulates the position of the grooved pin 18 in the radial direction of the shift lever 10.

The opening shape of the through groove 155 opened on both side surfaces of the lever main body 15 is different in the shape of the end portion on the base 15F side between the front side and the back side (refer to the CC sectional view in FIG. 11). In the through groove 155 on the side wall 30 (base bracket 3) side to which the S / L link 21 is attached, an insertion portion 156 whose groove width is wider than the other portion is provided at the end on the base 15F side. The insertion portion 156 is an example of a second structure for enabling the entire grooved pin 18 to be inserted. The insertion portion 156 is used to assemble the grooved pin 18 from the outer peripheral side in the radial direction (see FIG. 12).

The through groove 155, which is an example of the first structure, is formed to include a movable range in which the grooved pin 18 (protrusion portion 180) moves back and forth between the restricted position and the release position as shown in FIG. . And the insertion part 156 which makes an example of 2nd structure is arrange | positioned outside the movable range in the axial direction. Therefore, in the use state of the shift lever unit 1, the grooved pin 18 does not reach the position of the insertion portion 156.

Further, on both sides of the lever main body 15, through holes 157 are formed at positions corresponding to the gaps between the through grooves 155 and the lever side shaft holes 150 as shown in FIGS. The through hole 157 is a hole through which the iron round pin 131 is disposed. The round pin 131 is press-fit and fixed to the through hole 157 and functions as a seat of the coil spring 130.

Next, the grooved pin 18 is a resin molded product disposed through the detent rod 12 as shown in FIG. 9, FIG. 12 and FIG. The grooved pin 18 has a substantially strip-like plate shape, and the protruding portions 180 are extended on both sides of the central portion 18B. The projecting portion 180 is flush with the upper side surface of the body portion 18B, and is provided with a notch on the lower side, and the dimension in the height direction is smaller than that of the body portion 18B. Further, on both side surfaces of the front and back of the body portion 18B, retaining projections 181 are provided along the lower end of the body portion 18B so as to protrude outward in a bowl shape.

Of the protrusions 180 on both sides of the grooved pin 18, at the base of the protrusion 180A on the side that interferes with the S / L link 21, a jaw 189 whose dimension in the height direction is rapidly enlarged is formed. When the projection 180A abuts against the load receiving surface 211 of the S / L link 21, the jaws 189 transmit the load to the base bracket 3 as described above (the S / L link 21, FIG. 6). And FIG. 13) are formed to face each other with a slight gap. When the load acting on the S / L link 21 from the grooved pin 18 becomes excessive, the jaw portion 189 abuts on the support portion 214 in response to the slight elastic displacement of the S / L link 21, and a part of the excessive load is the base bracket. It is transmitted to the 3 side.

At the tip of the projecting portion 180A, a hook portion 185 bent downward to form a key is provided. The hook portion 185 is disposed to be offset to the right on the tip of the projecting portion 180A. In the shift lever unit 1 in the assembled state, this right side is the side that hits the return side of the S / L link 21 (see FIG. 13).

The upper side surface of the grooved pin 18 is provided with a substantially right triangle shaped support portion 183 which protrudes upward like a shark's dorsal fin. The support portion 183 is formed to face the outer peripheral surface of the detent rod 12 when the grooved pin 18 is disposed to penetrate the detent rod 12 (see FIG. 6). The support portion 183 exerts on the outer peripheral surface of the detent rod 12 a rotational moment generated in the grooved pin 18 derived from the reaction force from the S / L link 21. According to the support portion 183, rotational displacement in the pitching direction in which the tip end side of the grooved pin 18 is turned can be regulated with high reliability.

The detent rod 12 is a shaft-like resin molded product that is inserted into the rectangular cylindrical lever main body 15 as shown in FIGS. 9 and 12. The detent rod 12 transmits the driver's operation (pressing operation of the shift button 110) received by the shift knob 11 to the grooved pin 18, and functions to displace the grooved pin 18 in the axial direction of the shift lever 10. In addition, the detent rod 12 is formed in the cross-sectional shape which can reduce weight, ensuring rigidity.

At the end of the detent rod 12 located on the side of the base 15F when assembled to the lever main body 15, an accommodation hole 121 for penetrating and arranging the grooved pin 18 is bored. The seat 125 of the coil spring 130 is provided on the end face. The opposite end of the detent rod 12 is an end that is inserted into the hole 112 (see FIG. 10) of the shift knob 10 and that interferes with the internal structure (not shown) of the shift button 110. The detent rod 12 is pushed out in the axial direction in response to the pushing operation of the shift button 110.

The accommodation hole 121 has a cross-sectional shape corresponding to the body 18B of the grooved pin 18 disposed through. The cross section of the accommodation hole 121 has a substantially rectangular shape, and the longitudinal direction thereof is along the axial direction of the detent rod 12. At an end portion of the accommodation hole 121 on the seat 125 side, a protrusion accommodating portion 123 which is widened so as to be able to accommodate the retaining projection 181 of the grooved pin 18 is formed. The accommodation hole 121 is bored with a fitting size corresponding to a clearance fit with respect to the grooved pin 18, and the grooved pin 18 can be inserted and removed with a light force of a finger level.

Next, an assembly procedure of the shift lever 10 will be described. As shown in FIG. 9, when assembling the shift lever 10, first, it is necessary to press-fit and fix the round pin 131 in the through hole 157 of the lever main body 15, and provide a seat of the coil spring 130 in advance. Then, the coil spring 130 and the detent rod 12 are inserted in this order from the open end of the lever main body 15 on the knob attachment portion 153 side.

Depressing the end of the detent rod 12 protruding from the open end of the lever body 15 allows the detent rod 12 to be displaced toward the base 15F with compressive deformation of the coil spring 130. In this manner, the detent rod 12 is pushed in the axial direction so that the protrusion accommodating portion 123 of the accommodating hole 121 of the detent rod 12 matches the above-mentioned inserting portion 156 of the lever main body 15. In this state, the retaining projection 181 (barrel 18B) can pass through the outer peripheral side wall of the lever main body 15 through the insertion portion 156 of the lever main body 15, and the detent rod 12 is inserted in the lever main body 15 The grooved pin 18 can be disposed through the receiving hole 121, for example, manually.

After the grooved pin 18 is disposed through, when the force for pushing the end of the detent rod 12 is released, the detent rod 12 is pushed back in the axial direction by the biasing force of the coil spring 130 which returns elastically. At this time, the protrusions 180 provided on both sides of the grooved pin 18 are displaced in the axial direction while maintaining a state in which they project radially outward from the through groove 155 of the lever main body 15. Since the through groove 155 is set to a groove width through which the body portion 18B of the grooved pin 18 can not be inserted, the grooved pin 18 held by the shift lever 10 has a radial position by the through groove 155 forming an example of the first structure. Is regulated.

When the shift knob 11 is attached to the lever main body 15 in which the detent rod 12 is assembled, the end of the detent rod 12 protruding inside the shift knob 11 interferes with the shift button 110 side. The detent rod 12 is slightly pushed in the axial direction by the shift button 110.

When the shift lever 10 assembled as described above is assembled to the base bracket 3 and the S / L link 21 and the electromagnetic solenoid 24 etc. are assembled to the base bracket 3, the assembly operation of the shift lever unit 1 is completed. In the shift lever unit 1 when the P range is selected, the protrusion 180 of the grooved pin 18 is positioned in the path groove 321 of the base bracket 3 (see FIGS. 2 and 3).

In the shift lever unit 1 of this example, the position in the axial direction of the protrusion 180 (grooved pin 18) when the P range is selected and the shift button 110 is not operated is the restricted position (shown in FIGS. 2 and 3) State). Even when attempting to operate the shift lever 10 from the P range to another range when the projecting portion 180 is at the restricting position, the projecting portion is formed by the inner side surface of the path groove 321 extending radially about the bracket side axial hole 300 The rotational displacement of 180 is restricted, thereby restricting the shift operation.

When the shift button 110 is pushed in, the detent rod 12 is pushed out in the axial direction, whereby the projection 180 of the grooved pin 18 is axially displaced from the restricting position toward the releasing position. However, when the brake pedal (not shown) is not depressed, the electromagnetic solenoid 24 is not energized, and the S / L link 21 remains at the initial rotational position for closing the passage groove 321 (the position shown in FIG. 2). ). Therefore, the protrusion 180A is restricted by the S / L link 21 and can not reach the release position. In this case, as in the case where the shift button 110 is not operated, the rotational displacement of the protrusion 180 is restricted by the inner surface of the path groove 321, and the shift operation is restricted.

On the other hand, when the brake pedal (not shown) is depressed, the S / L link 21 is rotationally driven in response to the energization of the electromagnetic solenoid 24, and is displaced to the rotational position where the path groove 321 is opened (FIG. 4). Position shown). As a result, the path groove 321 is opened, and the displacement of the protrusion 180 to the release position becomes possible. If the projection 180 is displaced to the release position where the passage groove 321 communicates with the detent window 32, the rotation operation of the shift lever 10 accompanied by the rotation displacement of the projection 180 becomes possible, whereby the D range etc. The shift operation to switch to is possible.

Here, the structure in which the grooved pin 18 abuts on the S / L link 21 in the shift lock state for restricting the shift operation from the P range to another range will be described in detail. The shift lever unit 1 of this embodiment is provided with the following contact holding structure for holding the state in which the grooved pin 18 contacts the S / L link 21 with high reliability.

(First contact holding structure)
As described above, in the grooved pin 18, the hook portion 185 substantially in the shape of a key is provided on the projecting portion 180 </ b> A that contacts the S / L link 21. The hook portion 185 functions to be hooked in the recess 215 of the S / L link 21 when the hook portion 185 abuts on the S / L link 21 (see FIG. 13B). If the hook portion 185 of the grooved pin 18 is caught in the recess 215 of the S / L link 21, the inner side surface 185S of the hook portion 185 forming the contact holding structure functions as a restricting surface (see FIG. 8), and the projection 180A. It is possible to control deformation or the like in which the S / L link 21 falls in the direction of the tip of That is, according to the inner side surface 185S of the hook portion 185 which functions as a restricting surface, S directed in the direction of the tip of the projecting portion 180A which is in the direction orthogonal to the action direction of the contact load between the S / L link 21 and the grooved pin 18 The displacement of the / L link 21 can be regulated. Then, the situation in which the regulation of the grooved pin 18 is released due to such displacement of the S / L link 21 can be avoided in advance.

(Second contact holding structure)
In the S / L link 21, as described above, the tip end surface of the second arm 21B including the load receiving surface 211 has a substantially L-shaped front shape. And the hollow 215 is formed in this substantially L-shaped inner side (refer Fig.13 (a)). The recess 215 is positioned on the return side of the drive side and the return side, which correspond to both directions of the rotation direction of the S / L link 21. On the other hand, on the side of the grooved pin 18 in contact with the front end surface of the S / L link 21, the hook portion 185 is offset on the return side at the front end of the projection 180A.

As described above, the side on which the recess 215 is located on the end face of the S / L link 21 and the side on which the hook portion 185 is provided on the grooved pin 18 are both return sides in the rotation direction of the S / L link 21. Match. Therefore, in the shift lock state of FIG. 13B in which the grooved pin 18 (projecting portion 180) abuts on the S / L link 21, the hook portion 185 of the grooved pin 18 bites into the recess 215 of the S / L link 21. Then, the S / L link 21 and the grooved pin 18 are engaged with each other.

When the S / L link 21 and the grooved pin 18 are engaged, as shown in the cross-sectional view of FIG. 8, the hook portion 185 (shown by a dotted line) of the grooved pin 18 is disposed in the recess 215 of the S / L link 21. . In such an arrangement, the side surface 216B of the base of the receiving portion 212 functions as a restricting surface for supporting the hook portion 185. The side surface 216B as the restricting surface reliably restricts the relative displacement of the hook portion 185 to the drive side, that is, the rotational displacement of the S / L link 21 to the return side. Therefore, in the shift lever unit 1, even if the contact load of the grooved pin 18 is excessive, the return is one of the directions orthogonal to the action direction of the contact load between the S / L link 21 and the grooved pin 18 The S / L link 21 is not displaced excessively on the side (see FIG. 13), and the regulation of the grooved pin 18 is not released due to such displacement.

(Third contact holding structure)
As described above, the load receiving surface 211 of the S / L link 21 has a contact holding structure in which the both ends in the rotational direction of the S / L link 21 have a protruding “conical shape” that is recessed toward the center There is no. The inclined surfaces on both sides of the “bowl shaped” load receiving surface 211 generate a force for urging the S / L link 21 in the rotational direction based on the contact load on which the grooved pin 18 acts. Thus, if the relative position of the grooved pin 18 in contact with the load receiving surface 211 deviates from the vicinity of the center of the middle and lower positions with the load receiving surface 211 of the “bowl shape” of the middle low, the grooved pin 18 A force can be generated to bias the S / L link 21 back to near the center.

If the S / L link 21 is biased so that the grooved pin 18 is positioned at the center of the load receiving surface 211, the drive is in a direction orthogonal to the action direction of the contact load between the S / L link 21 and the grooved pin 18 The relative displacement between the S / L link 21 and the grooved pin 18 can be suppressed on the side and the return side (see FIG. 13). If this relative displacement is suppressed, the shift lock state in which the projection 180 abuts on the load receiving surface 211 can be held with high reliability.

(Fourth contact holding structure)
When the S / L link 21 and the grooved pin 18 shown in FIG. 13B are engaged (shift lock state), the hook portion 185 of the grooved pin 18 in the recess 215 of the S / L link 21 (in the cross sectional view of FIG. Shown in dotted lines). The side surface 216 A facing the hook portion 185 is formed such that the end on the return side, which is opposite to the side opposite to the receiving portion 212, protrudes into the recess 215 as described above. The extension of the end on the return side of the side surface 216A functions as a bank for restricting the rotational displacement to the drive side of the S / L link 21 that causes relative displacement to the return side of the hook portion 185. Therefore, in the shift lever unit 1, even if the contact load of the grooved pin 18 is excessive, there is little possibility that the S / L link 21 is rotationally displaced so as to fall to the drive side, and this restricts the grooved pin 18 Never get out.

(Fifth contact holding structure)
When the contact load of the grooved pin 18 is excessive, there is a possibility that the S / L link 21 may be deformed to fall in the tip direction of the projecting portion 180A. In the shift lever unit 1, such deformation is minutely limited by the first contact holding structure in which the hook portion 185 provided at the tip of the grooved pin 18 is hooked on the S / L link 21.

When the first abutting and holding structure works effectively, the hook portion 185 of the grooved pin 18 is in a state of pressing against the side surface 216A of the S / L link 21 (see FIG. 8). On this side surface 216A, as described above, a bank is formed in which the end on the opposite side (return side) to the receiving section 212 overhangs into the recess 215, and this bank is formed into an inclined surface where the amount of overhang increases toward the end. It is formed.

The sloping surface, such as a slide that descends toward the drive side, generates a force that biases the hook portion 185 toward the side surface 216B located on the drive side when pressed against the hook portion 185. Here, as described above, in the recess 215, the displacement of the hook portion 185 toward the drive side is reliably restricted by the side surface 216B that constitutes the second contact holding structure. Therefore, when the hook portion 185 is biased to the driving side, the hook portion 185 can be effectively prevented from dropping out of the recess 215. As a result, as shown in FIG. 13B, the state in which the grooved pin 18 engages with the S / L link 21 can be held with high reliability.

(Sixth contact holding structure)
In the shift lock mechanism included in the shift lever unit 1, a part of the load exerted by the grooved pin 18 on the S / L link 21 acts on the support portion 214 of the S / L link 21 from the jaws 189 of the grooved pin 18 and the base bracket It is comprised so that the shelf surface 30S of 3 may be transmitted.

If a structure in which a part of the load acting on the S / L link 21 from the grooved pin 18 is transmitted to the shelf surface 30S of the base bracket 3, an abutment load acting on the load receiving surface 211 of the S / L link 21 or The load of the reaction force acting on the grooved pin 18 can be reduced. By reducing the contact load acting on the load receiving surface 211 and the load of the reaction force acting on the grooved pin 18, elastic deformation of the S / L link 21 and the grooved pin 18 can be suppressed, and the S / L link 21 etc. It is possible to suppress the possibility that the shift lock state is disengaged due to elastic deformation.

As described above, in the shift lever unit 1, when assembling the shift lever 10, the grooved pin 18 can be assembled regardless of the press-fitting operation. For this reason, in the assembly operation of the shift lever unit 1, no mechanical device such as a press-in press is required, and therefore, it is relatively easy to reduce the product cost by suppressing the manufacturing cost.

In the shift lever unit 1, it is only necessary to insert the grooved pin 18 made of resin into the receiving hole 121 of the detent rod 12. If the protrusion accommodating portion 123 of the detent rod 12 matches the insertion portion 156 of the lever main body 15, the grooved pin 18 is manually inserted into the accommodation hole 121 of the detent rod 12 from the outer peripheral side of the lever main body 15 in the radial direction. It can be inserted and assembled. Furthermore, in the non-use state such as maintenance work requiring disassembly of the shift lever unit 1 in addition to assembly work, the detent rod 12 is axially oriented so that the accommodation hole 121 matches the insertion portion 156 By displacing, the operation such as removing the grooved pin 18 or reinserting the grooved pin 18 can be easily performed manually.

The insertion portion 156 provided in the lever main body 15 is disposed outside the movable range of the grooved pin 18 (see FIG. 11). The through groove 155 in the movable range of the grooved pin 18 can be disposed so as to penetrate through the projecting portion 180 of the grooved pin 18, but is formed so that the body 18B can not pass through. Therefore, the through groove 155 in the movable range can reliably control the radial position of the grooved pin 18. Therefore, in the shift lever unit 1, it is not necessary to fix the grooved pin 18 to the detent rod 12 by, for example, adhesive bonding or the like.

When a load of reaction force acts on the projecting portion 180A from the S / L link 21, a moment is generated to rotate the grooved pin 18 in the pitching direction. Since the grooved pin 18 is only disposed through the receiving hole 121 of the detent rod 12, if there is a slight gap in the receiving hole 121, rotation of the grooved pin 18 in the pitching direction may occur using this gap. In particular, the amount of displacement caused by the rotation of the grooved pin 18 in the pitching direction is amplified in the projecting portion 180A on the distal end side. As a device for reducing such displacement of the projecting portion 180A, in the shift lever unit 1, a support portion 183 like a shark's spine is provided on the upper side surface of the grooved pin 18. According to the support portion 183, the force due to the above-mentioned moment can be reduced by acting on the detent rod 12, and the rotation of the grooved pin 18 in the pitching direction can be suppressed.

Further, in the shift lever unit 1, the grooved pin 18 (projecting portion 180) abuts on the S / L link 21, and the contact for reliably holding the shift lock state in which the axial displacement of the grooved pin 18 is restricted. It has a holding structure. If the shift lever unit 1 is provided with such a contact holding structure, there is little possibility that the grooved pin 18 may come off from the S / L link 21, so it is not necessary to take measures such as high rigidity design for the S / L link 21 or the grooved pin 18. It has become. Therefore, in the shift lever unit 1, it is possible to avoid the cost increase, the weight increase and the size increase for enhancing the strength of the components constituting the shift lock mechanism. Note that the first to sixth contact holding structures described above are structures that effectively operate even in shift levers that do not have the first structure and the second structure.

The grooved pin 18 in which the retaining projection 181 extends in the height direction as shown in FIG. 14 may be employed. If the retaining projection 181 extending in the height direction of the grooved pin 18 is adopted, a portion whose position in the radial direction is restricted by the through groove 155 can be formed widely in the height direction. If the position where the radial position is restricted extends in the height direction, the reaction of the S / L link 21 can restrict the rotation of the grooved pin 18 in the pitching direction.

In the case of the grooved pin 18 of FIG. 14 in which the retaining projection 181 extends in the height direction and the projecting portion 180A can restrict the rotation in the upward direction, it is essential to penetrate the detent rod 12 in the essential requirement. Absent. For example, the end surface of the detent rod 12 may be pressed against the upper surface of the grooved pin 18, and the lower surface of the grooved pin 18 may function as a seat of a coil spring (symbol 130 in FIG. 9).

If the grooved pin 18 is disposed so as to penetrate through the accommodation hole 121 of the detent rod 12, the rotation of the grooved pin 18 in the pitching direction can be restricted by the penetration structure. In this penetration structure, the upper and lower surfaces of the grooved pin 18 face the inner peripheral surface of the accommodation hole 121 with a small gap, so that the rotation of the grooved pin 18 in the pitching direction is restricted. On the other hand, when the end face of the detent rod 12 is pressed against the upper side surface of the grooved pin 18 as described above, there is a possibility that the rotation of the grooved pin 18 in the pitching direction can not be regulated.

Therefore, with respect to the grooved pin 18 in FIG. 12 in which the retaining projection 181 extends along the lower end, a retaining projection extending along the upper end may be additionally provided. In this case, a plurality of locations where the radial position is restricted are formed in the height direction of the grooved pin 18 and are formed at least at two places of the upper end and the lower end of the grooved pin 18. If at least two locations where the radial position is restricted are provided at different positions in the height direction, it is possible to restrict the rotation of the grooved pin 18 in the pitching direction such that the protrusion 180A is turned upward as described above.

Although the specific examples of the present invention have been described in detail as in the examples, the specific examples only disclose an example of the technology included in the claims. It goes without saying that the scope of the claims should not be interpreted limitedly by the configuration, numerical values and the like of the specific example. The claims encompass variously modified, changed or appropriately combined techniques using the known techniques and the knowledge of those skilled in the art.

1 shift lever unit 10 shift lever 100 shift shaft 11 shift knob (operation part)
12 detent rod (transmission member)
121 accommodation hole 123 projection accommodation portion 15 lever main body 155 through groove 156 insertion portion 157 through hole 18 grooved pin (regulating member)
18B body 180 protrusion 181 retaining projection 183 support 185 hook 185S inner surface (regulating surface)
21 Shift lock link (lock member, S / L link)
211 load bearing surface 214 support portion 215 dent 216B side surface (regulating surface)
24 electromagnetic solenoid 3 base bracket 30S shelf surface 32 detent window 321 channel groove

Claims

An operation unit for receiving a shift operation for switching a shift position is a shift lever attached to a tip thereof, and is held by the shift lever so as to be displaceable along an axial direction of the shift lever. And a restricting member provided with a projecting portion projecting to the outer peripheral side in the radial direction via a through groove opened to the side, and the shift operation is performed by restricting the rotational displacement of the projecting portion accompanying the rotation of the shift lever. Regulating shift lever unit,
The shift lever has a first structure for restricting the radial position of the restricting member within a movable range in which the restricting member is displaced in the axial direction in a use state mounted on a vehicle.
A shift lever unit comprising a second structure for assembling the restricting member from the radially outer peripheral side outside the movable range in the axial direction.
In Claim 1, the shift lever has a tubular shape, and accommodates a shaft-like transmission member in an inserted state,
The shift lever unit, wherein the restriction member is disposed in a receiving hole that opens to an outer peripheral side surface of the transmission member, and the transmission member advances and retracts in the axial direction according to the operation of the driver received by the operation unit.
The transmission member according to claim 2, wherein the transmission member is disposed in the shift lever so that the position of the accommodation hole can be matched with the position of the second structure by the axial displacement when in the non-use state not in the use state. Has been inserted,
The restriction member is insertable into the accommodation hole from the radially outer peripheral side when the position of the second structure matches the position of the accommodation hole, and the radial direction from the accommodation hole Shift lever unit that can be pulled out on the outer peripheral side.
In Claim 2 or 3, the trunk | drum arrange | positioned at the said accommodation hole among the said regulation members is wider than the said protrusion part, and the said 1st structure is a structure which the said trunk | drum can not penetrate in radial direction. On the other hand, a shift lever unit in which the second structure is a structure capable of inserting and removing the body portion in the radial direction.
The lock member according to any one of claims 1 to 4, further comprising: a lock member for restricting displacement of the restriction member along the axial direction by coming into contact with the projection.
The shift lever unit includes a support portion that exerts a force due to a moment according to a reaction force acting on the projection from the lock member on the outer peripheral surface of the transmission member.
The lock member according to any one of claims 1 to 5, further comprising: a lock member which abuts on the protrusion and restricts displacement of the restricting member along the axial direction.
A shift lever unit, wherein at least one of the protrusion and the lock member is provided with a contact holding structure for holding a state in which the protrusion is in contact with the lock member.
The contact holding structure according to claim 6, restricts relative displacement between the projection and the lock member in a direction orthogonal to the acting direction of the contact load between the projection and the lock member. Shift lever unit with control surface.
The contact holding structure according to claim 6 or 7, wherein the relative positional deviation between the projection and the lock member in a direction orthogonal to the action direction of the contact load between the projection and the lock member. A shift lever unit configured to generate a biasing force that biases the protrusion or the lock member so as to suppress the positional displacement when a force is generated from the contact load.
The shift lever unit according to any one of claims 6 to 8, wherein the contact holding structure includes a hook portion bent in a key shape from the tip end side of the protrusion to the lock member side.
In any one of claims 6 to 9, a base bracket pivotally supporting the shift lever is provided, and the contact holding structure is a part of a load acting on the lock member from the restriction member. The shift lever unit has a structure in which the protrusion reduces the contact load acting on the lock member by transmitting the pressure plate to the shelf surface provided on the base bracket.