WO2021241358A1

WO2021241358A1 - Detent device

Info

Publication number: WO2021241358A1
Application number: PCT/JP2021/018978
Authority: WO
Inventors: 明伸和田
Original assignee: 株式会社パイオラックス
Priority date: 2020-05-25
Filing date: 2021-05-19
Publication date: 2021-12-02

Abstract

Provided is a detent device that enhances the feel of moderation and that increases load during an operation of an oscillation member. A detent device (10) has: a base member (20); an oscillation member (40) that is supported so as to be oscillatable with respect to the base member (20), and that is provided with a detent part (45) having a plurality of projections (46, 47, 48, 49) and a plurality of fitting recesses (50, 51, 52) formed between the projections; a fitting member (60) that has an outer circumference (61) forming a circular and rod-like shape, that is supported so as to be slidable with respect to the base member (20), and that is fitted, at the outer circumference thereof, in the fitting recesses; and a coil spring (70) that biases the fitting member (60) in a direction fitting in the fitting recesses. The fitting member (60) is configured to overcome the projections and sequentially fit in the fitting recesses in association with oscillation of the oscillation member (40) with respect to the base member (20).

Description

Detent device

The present invention relates to, for example, a detent device used in an automatic transmission of an automobile.

Conventionally, the automatic transmission of a vehicle operates a shift lever to appropriately switch operation modes such as P (parking), R (reverse), and D (drive). A manual plate and a detent spring are used as a structure for holding the shift lever in the operation mode such as "P" or "R". A plurality of mountain valley-shaped mountain valley portions corresponding to "P", "R", etc. are formed on the manual plate, and rotate in conjunction with the operation of the shift lever. In addition, the detent spring has a plate shape and is provided with a bifurcated roller support portion on the tip side, on which the roller is rotationally supported and elastically fitted to a plurality of mountain valley portions of the manual plate. .. Then, by operating the shift lever with a predetermined load to rotate the manual plate, the roller fitted in the predetermined mountain valley portion is fitted into the other mountain valley portion while bending the tip side of the detent spring. This makes it possible to switch the shift lever to a predetermined operation mode.

As a structure having the above structure, the following Patent Document 1 has a manual plate having a locking portion on the outer periphery and an engaging portion with a locking portion at the end of the spring portion, and a selection position of a shift lever is set. A detent mechanism for an automatic transmission is described with a detent spring made of elastic plate material to hold.

Further, Patent Document 2 below describes a vehicle shift device provided for a manual transmission and for switching the shift stage of the manual transmission. This vehicle shift device has an inner lever, three fork shafts, and a shift head attached to each fork shaft, which are arranged in the case of a manual transmission.

A detent portion having a plurality of grooves is provided on the base end side of the inner lever. Further, a ball-shaped detent ball urged by a spring is arranged in the case. Further, a detent groove portion composed of a plurality of groove portions is formed in the shift head. Further, a detent member urged by a spring is arranged on the tip end side of the inner lever.

Then, when the shift lever is operated, the inner lever rotates via the shift and select shaft, the detent ball is sequentially fitted into the groove portion of the detent portion on the inner lever base end side, and the detent member on the inner lever tip side is formed. , The detent groove in the shift head is sequentially fitted to give a feeling of moderation.

Japanese Unexamined Patent Publication No. 7-42831 Japanese Unexamined Patent Publication No. 2017-2921

For example, in an electric vehicle or a hybrid vehicle, it is desired to increase the operating load of the shift lever when rotating the manual plate in order to move the roller at the tip of the detent spring from a predetermined mountain valley to another mountain valley. In some cases.

In the detent mechanism of the automatic transmission of Patent Document 1, since the detent spring is made of an elastic plate material, it is conceivable to increase the plate thickness or the like when trying to increase the operating load. However, there is a limit to the thickness of the detent spring due to the installation space of the detent spring and other factors.

Further, in the vehicle shift device of Patent Document 2, a detent ball urged by a spring is fitted in the groove portion of the detent portion on the inner lever base end side, but such a ball has a degree of freedom. Since it is high and difficult to hold in a predetermined position, it is necessary to form the groove relatively shallow (if the groove is deep, the detent ball cannot move between the grooves), and it is difficult to give a sense of moderation.

Therefore, an object of the present invention is to provide a detent device capable of increasing the load at the time of operating the swing member and enhancing the feeling of moderation.

In order to achieve the above object, the detent device of the present invention is swingably supported by the base member and the base member, and a plurality of protrusions and a plurality of fittings formed between the plurality of protrusions. The rocking member provided with a detent portion having a recess and the outer periphery of the rocking member when viewed from the rocking axis direction have a circular shape and a rod shape extending in the rocking axis direction of the rocking member. At the same time, the fitting member that is slidably supported with respect to the base member toward the detent portion and the outer periphery of the circular shape fits into the fitting recess, and the fitting member are brought into the detent portion. It has a coil spring that urges the fitting recess in the direction of fitting, and the fitting member gets over the protrusion and gets over the plurality of rocking members as the rocking member swings with respect to the base member. It is characterized in that it is configured to be sequentially fitted into the fitting recess.

According to the present invention, a coil spring is adopted as an elastic force urging means for a detent spring made of a conventional leaf spring, and the fitting member is urged in the fitting direction of the fitting recess by the coil spring. Since this fitting member is configured to move between a plurality of fitting recesses as the swinging member swings with respect to the base member, the wire diameter, outer diameter, number of turns, etc. of the coil spring can be appropriately adjusted. By adjusting, the spring load of the coil spring can be easily increased, and it is possible to cope with the increase in the load.

Further, the fitting member to be fitted into the plurality of fitting recesses has a circular outer circumference when viewed from the swing axis direction of the swing member, and has a rod shape extending in the swing axis direction of the swing member. Since the circular outer circumference of the fitting member fits into the fitting recess, a plurality of fitting members are used as compared with a structure that uses a detent ball to give a sense of moderation, as in the vehicle shift device of Patent Document 2. Since the depth of the fitting recess of the above can be formed deeply, it is possible to improve the feeling of moderation when the rocking member swings.

It is an exploded perspective view which shows one Embodiment of the detent device which concerns on this invention. It is a perspective view of the detent device. It is a side view of the detent device. FIG. 2 is a cross-sectional view taken along the line AA of FIG. It is sectional drawing in the BB arrow line of FIG. It is sectional drawing of the state in the middle when the swing member swings in the swing direction Y1 from the state shown in FIG. It is sectional drawing from the state shown in FIG. 6 in the state where the swing member further swings in the swing direction Y1. FIG. 5 is a cross-sectional view showing a state in which the swinging member swings in the swinging direction Y2 from the state shown in FIG. It is a perspective view which shows one use example of the detent device. It is a perspective view which shows the other embodiment of the detent device which concerns on this invention. It is sectional drawing in the GG arrow line of FIG. It is sectional drawing in the OH arrow line of FIG. It is a perspective view which shows still another embodiment of the detent device which concerns on this invention. It is sectional drawing in the Ⅰ arrow line of FIG.

Hereinafter, an embodiment of the detent device according to the present invention will be described with reference to the drawings.

As shown in FIGS. 1 to 3, the detent device 10 in this embodiment is swingably supported by the base member 20 and the base member 20, and has a plurality of

protrusions

46, 47, 48, 49 and the like. The swing member 40 provided with the detent portion 45 having the plurality of

fitting recesses

50, 51, 52 formed between the plurality of protrusions, and the outer circumference 61 having a circular shape and the swing member 40 swing. A fitting member that has a rod shape extending in the axial direction, is slidably supported with respect to the base member 20 toward the detent portion 45, and has a circular outer peripheral shape 61 that fits into a plurality of fitting recesses 50 to 52. The coil spring 70 that urges the 60 and the fitting member 60 in the direction of fitting into the plurality of fitting recesses 50 to 52, and the spring receiving member 80 that receives the spring load of the coil spring 70 and supports the fitting member 60. From, it is mainly composed.

Further, the swing member 40 is supported via the swing member support portion 55 (hereinafter, also simply referred to as “support portion 55”), and is swingable with respect to the base member 20 by the swing shaft 57. Be supported. Further, the fitting member 60 is rotatably and slidably supported by the pin 65 with respect to the base member 20. Further, the fitting member 60 of this embodiment is supported by the spring receiving member 80, and is indirectly slidably supported with respect to the base member 20 via the spring receiving member 80. Further, the spring shaft 90 is held so as to be held against the base member 20 so that the coil spring 70 can be expanded and contracted and the spring receiving member 80 can be slidable.

The detent device 10 in this embodiment is a shift lever 1 of an automatic transmission (hereinafter, simply referred to as “AT”) of an automobile as shown in FIG. 9, and a lever 5 that rotates via an operation wire 3. , The rocking member 40 is connected. Then, by moving the shift lever 1 to each operation mode such as "R", "N", "D", the lever 5 rotates via the operation wire 3 and interlocks with the rotated lever 5. Therefore, the swing member 40 swings. The detent device may be applied to a place other than the AT of the automobile, and the place of application is not particularly limited.

The details of each member will be described below. First, the base member 20 will be described.

As shown in FIG. 1, the base member 20 of this embodiment is arranged in parallel with a base portion 21 having a substantially elongated plate shape extending in one direction at a predetermined distance from the base portion 21. It has one base portion 23 and a spring receiving portion 25 that connects one end portions of the

base portions

21 and 23 in the longitudinal direction to each other and supports one end 71 of the coil spring 70. It can be said that the spring receiving portion 25 is erected from one end in the longitudinal direction of the base 21 or one end in the longitudinal direction of the base 23. Further, the spring receiving portions 25 are arranged orthogonally to the pair of

base portions

21 and 23, and the pair of

base portions

21 and 23 and the spring receiving portions 25 are arranged when viewed from the side of the base member 20. It has an abbreviated U-shaped frame. The "base" of the base member in the present invention means the above-mentioned

bases

21 and 23.

A flange-shaped peripheral edge portion 21a protrudes from the peripheral edge of the base portion 21 excluding the proximal end portion in the longitudinal direction, and the base portion 21 itself has a shape that is raised with respect to the peripheral edge portion 21a (see FIG. 4). Further, the back side of the peripheral edge portion 21a is a portion grounded to a member to be attached (not shown). Further, by raising the base portion 21 with respect to the peripheral edge portion 21a, the flange portion 57a on the longitudinal direction proximal end side of the swing shaft 57 and the flange portion 65a on the longitudinal direction proximal end side of the pin 65 are provided on the peripheral edge portion. It is designed so that it does not protrude from the back side of 21a (the side facing the mounted member).

Further, a tongue piece-shaped mounting piece 27 extends from both sides of one end in the longitudinal direction and the other end in the longitudinal direction of the peripheral edge 21a of the base 21. A circular mounting hole 27a is formed in each mounting piece 27, so that the base member 20 can be mounted to a mounted member (not shown) via a fixing member such as a screw or a bolt. ..

Further, at a position of the base 21 closer to the other end in the longitudinal direction than in the middle in the longitudinal direction, a pin guide hole 29 having a substantially elongated hole shape having an arc shape at both ends is formed. Further, a pin guide hole 29 having the same shape as the above is formed at a position of the base portion 23 that matches the pin guide hole 29 formed in the base portion 21, that is, at the other end of the base portion 23 in the longitudinal direction. As shown in FIG. 4, a pin 65 is inserted through these pin guide holes 29 and 29 to guide and support the sliding operation (slide guide).

Further, the spring receiving portion 25 is formed with a circular shaft hole 25a through which the spring shaft 90 is inserted, and a tubular portion 25b is projected from the front peripheral edge of the shaft hole 25a (a cylindrical portion 25b). See FIG. 4). Further, on the other end side in the longitudinal direction of the base 21, a circular shaft hole 31 through which the swing shaft 57 is inserted is formed between the pin guide hole 29 and the mounting piece 27. ..

Further, the base member 20 may be configured so that an actuator (not shown) for swinging the swing member 40 can be attached. For example, as shown in FIG. 5, an actuator mounting portion 35 is extended from one side in the longitudinal direction of the base portion 21 of the base member 20, and the actuator mounting portion 35 is connected to a connecting portion to be described later of the swing member 40. An actuator (not shown) that is connected to 43 and swings the swing member 40 can be attached. Examples of the actuator include a linear actuator operated by a linear motor, a solenoid actuator operated by an electromagnet, an actuator operated by a ball screw, an actuator operated by hydraulic pressure, pneumatic pressure, hydraulic pressure, etc., and swinging. The member 40 may be swingable.

The base member may have any shape and structure as long as the swing member can be swing-supported and the fitting member can be slide-supported. In particular, in this embodiment, the base portion 23 is arranged to face the base portion 21, but the structure may not have the base portion 23. Further, the base member can be formed of a metal material, a synthetic resin material, or the like. Each part (a pair of bases, a spring receiving part, a plurality of mounting pieces, etc.) constituting the base member is integrally formed.

Next, the rocking member 40 and the structure related thereto will be described.

As shown in FIGS. 1 and 2, the rocking member 40 of this embodiment has a deformed plate shape extending slightly in one direction, and a detent portion 45 is provided on one side portion facing the fitting member 60 side. It has a base 41 having an arm 42 provided on the other side surface opposite to the fitting member 60.

Tapered surfaces

42a and 42a are formed on both sides of the other side of the base 41, and a strip-shaped arm portion 42 having a constant width extends from the intersection of the

tapered surfaces

42a and 42a. Further, a circular shaft hole 41a is formed in the center of the base 41 in the longitudinal direction.

Since the

tapered surfaces

42a and 42a are formed on both sides of the other side portion of the base portion 41, as shown in FIGS. 7 and 8, the outer periphery of the base member 20 (here, the base portion 21) is formed when the rocking member 40 swings. The other side portion of the base portion 41 of the rocking member 40 is less likely to protrude from the peripheral edge portion 21a).

Further, a connecting portion 43 having a circular shape is provided at the tip of the arm portion 42 in the extending direction, and a circular hole-shaped connecting hole 43a is formed in the connecting portion 43. In this embodiment, as shown in FIG. 9, the lever 5 of the shift lever 1 of the AT is connected to the connecting hole 43a via a screw, a bolt, or the like.

The swing member 40 is swingably supported by a support portion 55, a swing shaft 57, and the like.

The support portion 55 has a substantially cylindrical shape, and a protrusion 55a having a diameter smaller than the outer diameter of the support portion is projected from the center of the upper end portion thereof. By inserting the protrusion 55a into the shaft hole 41a of the swing member 40, the peripheral edge portion of the protrusion 55a at the upper end of the support portion 55 comes into contact with the back peripheral edge of the shaft hole 41a of the swing member 40. The swing member 40 is supported by the support portion 55 (see FIG. 4).

On the other hand, the swing shaft 57 that swingably supports the swing member 40 has a columnar shaft portion and

flange portions

57a and 57b at both ends in the longitudinal direction thereof (see FIG. 4). ). The flange portion 57b on the tip end side of the swing shaft 57 is not formed before the swing member 40 is assembled to the base member 20 (see FIG. 1), and the swing member 40 is assembled to the base member 20. It is formed by caulking when it is attached (see FIG. 4).

When the swing member 40 is swing-supported via the swing shaft 57, first, the tip of the swing shaft 57 is placed on the back side of the shaft hole 31 of the base member 20 (facing the mounted member (not shown)). It is inserted through the (face side) opening, inserted through the support portion 55, and inserted through the front side opening of the shaft hole 41a. Further, the flange portion 57b is formed by arranging the washer 59 on the front peripheral edge of the shaft hole 41a of the base portion 41 of the swing member 40 and then caulking the tip of the swing shaft 57.

As a result, as shown in FIG. 4, the swing shaft 57 is inserted into the support portion 55 and the shaft hole 41a of the swing member 40, and the flange portion 57a engages with the back peripheral edge of the shaft hole 31. The flange portion 57b indirectly engages with the front peripheral edge of the shaft hole 41a of the base portion 41 of the rocking member 40 via a washer 59. As a result, the swing member 40 is swingably supported with respect to the base member 20 via the swing shaft 57 in the swing direction shown by the arrows Y1 and Y2 in FIG. 5, and swings from the base member 20. The moving member 40 can be assembled in a state where it is prevented from coming off.

The swing shaft is not crimped at the tip, and may be composed of, for example, a bolt or a nut screwed to the bolt, and is not particularly limited.

On the other hand, the detent portion 45 has a plurality of

fitting recesses

50, 51 formed between the plurality of

protrusions

46, 47, 48, 49 and the plurality of

protrusions

46, 47, 48, 49. It has 52 and.

Referring to FIG. 5 together, the

protrusions

46, 47, which are one side of the base 41 and are directed from one end in the longitudinal direction (see reference numeral D in FIG. 5) to the other end (see reference numeral E in FIG. 5). 48 and 49 are formed in order. Further, a fitting recess 50 is formed between the

protrusions

46 and 47, a fitting recess 51 is formed between the

protrusions

47 and 48, and a fitting recess 52 is formed between the

protrusions

48 and 49. ing. That is, the detent portion 45 is configured by providing protrusions 46 to 49 and fitting recesses 50 to 52 alternately and continuously along the longitudinal direction on one side surface of the base portion 41. In the following description, the "one end", "one side", and "one side surface" of the detent portion 45 mean the direction toward the reference numeral D in FIG. 5, and the "other end", "others" of the detent portion 45. The "side" and "other side surface" mean the direction toward the reference numeral E in FIG.

Further, the

protrusions

46 and 49 located at both ends in the longitudinal direction of the detent portion 45 have a substantially mountain shape of half. On the other hand, the

protrusions

47 and 48 located in the center of the detent portion 45 in the longitudinal direction between the

protrusions

46 and 49 have a substantially mountain shape. Further, the highest protruding portion of the

protrusions

46, 47, 48, 49 is the top 46a, 47a, 48a, 49a. The top 46a of the protrusion 46 and the top 49a of the protrusion 49 have an angular shape, while the top 47a of the protrusion 47 and the top 48a of the protrusion 48 have a rounded curved surface shape. ing.

Further, the fitting recess 51 located in the center of the detent portion 45 in the longitudinal direction has a substantially triangular groove shape corresponding to the substantially mountain-shaped

protrusions

47 and 48 located on both sides thereof.

That is, the fitting recess 51 is formed at the lowest portion thereof, and has a valley-shaped bottom portion 51a having a rounded curved surface, and from the bottom portion 51a, the top portion 47a of the protrusion 47 and the top portion of the protrusion 48. The

guide portions

51b and 51b are inclined so as to gradually project the both

protrusions

47 and 48 toward 48a. Further, the curved surface of the bottom portion 51a of the fitting recess 51 is adapted to fit the outer periphery of the fitting member 60. One guide portion 51b of the fitting recess 51 forms the other side surface of the protrusion 47, and the other guide portion 51b of the fitting recess 51 forms one side surface of the protrusion 48.

On the other hand, the

fitting recesses

50 and 52 located at both ends in the longitudinal direction of the detent portion 45 have a substantially trapezoidal groove shape.

That is, the fitting recess 50 gradually protrudes higher from the bottom portion 50a formed at the lowest portion thereof and the other end of the bottom portion 50a toward the top portion 47a of the protrusion 47. A guide portion 50b inclined so as to be inclined, a stopper portion 50c inclined so as to gradually project the protrusion 46 from one end of the bottom portion 50a toward the top portion 46a of the protrusion 46, the other end of the bottom portion 50a, and a guide. It is composed of an R-shaped portion 50d formed between the base ends of the portions 50b. The R-shaped portion as described above is not formed between one end of the bottom portion 50a and the base end of the stopper portion 50c.

On the other hand, the fitting recess 52 gradually projects the protrusion 48 higher from the linearly extending bottom portion 52a formed at the lowest portion thereof and one end of the bottom portion 52a toward the top portion 48a of the protrusion 48. The guide portion 52b is inclined so as to be inclined from the other end of the bottom portion 52a toward the top portion 49a of the protrusion portion 49, and the stopper portion 52c is inclined so as to gradually project the protrusion portion 49 higher, and one end of the bottom portion 52a and the guide portion. It is composed of an R-shaped portion 52d formed between the base ends of 52b. The R-shaped portion as described above is not formed between the other end of the bottom portion 52a and the base end of the stopper portion 52c.

Further, the stopper portion 50c of the fitting recess 50 forms the other side surface of the protrusion 46, and the guide portion 50b of the fitting recess 50 forms one side surface of the protrusion 47, while the fitting recess 52. The guide portion 52b of the above forms the other side surface of the protrusion 48, and the stopper portion 52c of the fitting recess 52 forms one side surface of the protrusion 49.

Further, the width of the guide portion 50b and the stopper portion 50c of the fitting recess 50 and the width of the guide portion 52b and the stopper portion 52c of the fitting recess 52 are formed to be larger than the outer diameter of the fitting member 60. Has been done. Therefore, as shown in FIG. 7, with the fitting member 60 fitted in the fitting recess 50, the fitting member 60 can move in the fitting recess 50, and the swing angle of the swing member 40 is slightly different. It is set to have some play (it is possible to swing in the swing direction shown in Y1 from the state shown in FIG. 7). Similarly, as shown in FIG. 8, with the fitting member 60 fitted in the fitting recess 52, the fitting member 60 can move in the fitting recess 52, and the swing angle of the swing member 40 can be adjusted. The setting is such that there is some play (it is possible to swing in the swing direction shown in Y2 from the state shown in FIG. 8).

Further, as shown in FIG. 5, the depth F1 of the fitting recess 50 (distance from the top 46a of the protrusion 46 or the top 47a of the protrusion 47 to the bottom 50a) and the depth F3 of the fitting recess 52 (more). The distance from the top 48a of the protrusion 48 or the top 49a of the protrusion 49 to the bottom 52a) is the depth F2 of the fitting recess 51 (the distance from the top 47a of the protrusion 47 or the top 48a of the protrusion 48 to the bottom 51a). ) Is formed larger than. The depth F1 of the fitting recess 50 is the same as the depth F3 of the fitting recess 52.

Then, as shown in FIGS. 2 and 5 to 8, the fitting member 60 urged in the fitting direction by the coil spring 70 enters and fits into the

fitting recesses

50, 51, 52, and a plurality of protrusions are formed. While in contact with the portions 46 to 49, the swing member 40 moves between the adjacent fitting recesses 50, 51, and 52 as the swing member 40 swings (this will be described with respect to the coil spring 70 described later). Will be described in detail in).

Further, as described above, since the

guide portions

50b, 51b, 52b are formed in the fitting recesses 50, 51, 52, respectively, the fitting member 60 that has entered the predetermined fitting recess and fitted into the fitting recesses can be fitted. When the swing member 40 swings and moves to other adjacent fitting recesses, it is guided from the

bottom portions

50a, 51a, 52a to the top portions 46a to 49a of the protrusions 46 to 49. The fitting member 60 is easy to move. At this time, since the top 47a of the protrusion 47 and the top 48a of the protrusion 48 have a rounded curved surface shape, the fitting member 60 gets over the top 47a of the protrusion 47 and the top 48a of the protrusion 48. It's getting easier.

Further, as described above, the depth F1 of the fitting recess 50 and the depth F3 of the fitting recess 52 are formed to be larger than the depth F2 of the fitting recess 51. Therefore, when the swing member 40 swings in the swing direction shown in Y1 or swings in the swing direction shown in Y2 from the state where the fitting member 60 is fitted in the fitting recess 51 (see FIG. 5). When the moving member 40 swings, the fitting state of the fitting member 60 with respect to the fitting recess 51 is easily released, and the fitting member 60 is easily moved to the fitting recess 50 or the fitting recess 52.

On the other hand, when the swing member 40 swings in the swing direction shown in Y2 from the state where the fitting member 60 is fitted in the fitting recess 50 (see FIG. 7), or the fitting member is fitted in the fitting recess 52. When the swing member 40 swings in the swing direction shown in Y1 from the state where the 60 is fitted (see FIG. 8), the fitting state of the fitting member 60 with respect to the fitting recess 50 or the fitting recess 52. Is difficult to release, and the fitting member 60 is difficult to move to the fitting recess 50 or the fitting recess 52.

That is, in this embodiment, the fitting member 60 fits from the fitting recess 50 rather than the feeling of moderation when the fitting member 60 moves from the fitting recess 51 to the fitting recess 50 or the fitting recess 52. It is set so that the feeling of moderation when moving to the fitting recess 51 or when moving from the fitting recess 52 to the fitting recess 51 is greater.

Further, since the R-shaped portion 50d is formed between the bottom portion 50a and the guide portion 50b of the fitting recess 50, when the fitting member 60 fitted in the fitting recess 50 moves to the fitting recess 51. In addition, it becomes easy to be guided by the guide portion 50b of the fitting recess 50. Similarly, since the R-shaped portion 52d is also formed between the bottom portion 52a and the guide portion 52b of the fitting recess 52, the fitting member 60 fitted in the fitting recess 52 moves to the fitting recess 51. At that time, it becomes easy to be guided by the guide portion 52b of the fitting recess 52.

Further, in this embodiment, in addition to the angular shape of the top portion 46a of the protrusion 46, the above-mentioned R-shaped portion is not formed between the bottom portion 50a and the stopper portion 50c of the fitting recess 50. It is composed. Therefore, even if the swinging member 40 further swings in the direction indicated by Y1 while the fitting member 60 is fitted in the fitting recess 50 (see FIG. 7), the fitting member 60 remains in the fitting recess 50. It is possible to abut on the stopper portion 50c to restrict its movement, and to prevent the fitting member 60 from getting over the top portion 46a of the protrusion 46 via the stopper portion 50c and coming off from the fitting recess 50. It has become.

Similarly, in this embodiment, the top portion 49a of the protrusion 49 has an angular shape, and an R-shaped portion is not formed between the bottom portion 52a and the stopper portion 52c of the fitting recess 52. Therefore, even if the swinging member 40 swings in the direction shown in Y2 while the fitting member 60 is fitted in the fitting recess 52 (see FIG. 8), the fitting member 60 is a stopper of the fitting recess 52. It comes into contact with the portion 52c to restrict its movement, and it is possible to prevent the top portion 49a of the protrusion 49 from being disengaged from the fitting recess 52 via the stopper portion 52c.

The fitting recess of the detent portion is not limited to the above shape. For example, the fitting recess between the protrusions may be a semicircular groove portion, a curved groove portion, or a substantially U-shaped groove portion. However, the protrusions may have a shape corresponding to them, and the fitting member may have a shape that can move one by one between adjacent fitting recesses as the swinging member swings. Further, the number of protrusions and fitting recesses between the protrusions is not particularly limited. Further, the structure and shape of the rocking member other than the detent portion are not particularly limited. Further, the rocking member can be formed of a metal material, a synthetic resin material, or the like. In this embodiment, each portion (a base portion including a detent portion, an arm portion, a connecting portion, etc.) constituting the swing member is integrally formed from a single plate-shaped material. Therefore, the base 41 of the rocking member 40 and the plurality of protrusions 46 to 49 of the detent portion 45 have the same thickness.

Next, the structure of the fitting member 60, the coil spring 70 for urging the fitting member 60, the spring receiving member 80, and the like will be described.

The coil spring 70 urges the fitting member 60 in the fitting direction with respect to the

fitting recesses

50, 51, 52 provided in the detent portion 45 of the swing member 40. The coil spring 70 of this embodiment is a compression coil spring formed by winding a wire rod at a predetermined pitch. This compression coil spring normally has a gap between the wires, and when compressed, the gap between the wires becomes smaller, and a repulsive force is generated at that time. However, as a coil spring, it has a tension spring (generally a spring that is tightly wound and has hooks at both ends and uses a repulsive force that tries to return when pulled) and a torsion spring (a winding part and multiple arms). , A spring utilizing the repulsive force generated by twisting the winding portion), and is not particularly limited.

Further, one end 71 of the coil spring 70 is supported on the back side of the spring receiving portion 25 of the base member 20, and the other end 72 of the coil spring 70 is supported by the spring receiving member 80.

The spring receiving member 80 receives the load of the coil spring 70, which is a compression coil spring, and is slidably supported with respect to the base member 20. The spring receiving member 80 of this embodiment extends from both ends of the spring contact portion 81 having a substantially elongated plate shape in the longitudinal direction toward the coil spring 70 side so as to be parallel to each other. A strip extending from both sides of the pair of

side portions

83, 83 and the center of the spring contact portion 81 in the longitudinal direction in the direction opposite to the pair of

side portions

83, 83 and parallel to each other. It has a pair of fitting member support portions 85, 85 (hereinafter, also simply referred to as “support portion 85”). The pair of

side portions

83, 83 and the pair of

support portions

85, 85 are orthogonal to the spring contact portion 81.

Further, a circular shaft hole 81a is formed in the center of the spring contact portion 81 in the longitudinal direction. Further, a circular pin insertion hole 85a is formed in each of the pair of

support portions

85 and 85.

The spring receiving member 80 is configured to prevent and hold the coil spring 70 with respect to the base member 20 via the spring shaft 90. The spring shaft 90 has a columnar shaft portion and

flange portions

90a and 90b at both ends in the longitudinal direction thereof (see FIG. 4). The flange portion 90b on the tip end side of the spring shaft 90 is not formed before the coil spring 70 is assembled to the base member 20 (see FIG. 1), and is caulked when the coil spring 70 is assembled to the base member 20. (See Fig. 4).

Then, when the coil spring 70 is prevented from coming off and held via the spring shaft 90, first, the coil spring 70 is arranged between the spring receiving portion 25 of the base member 20 and the spring contact portion 81 of the spring receiving member 80. do. Next, the tip of the spring shaft 90 is inserted through the front opening of the shaft hole 81a of the spring receiving member 80, the inside of the coil spring 70 is inserted, and the tip opening of the tubular portion 25b is inserted through the shaft hole 25a of the base member 20. Let it be inserted from. After that, the flange portion 90b is formed by caulking the tip of the spring shaft 90.

As a result, as shown in FIG. 4, the spring shaft 90 is inserted into the shaft hole 81a of the spring receiving member 80, the coil spring 70, the shaft hole 25a of the base member 20, and the tubular portion 25b, and the coil spring 70 is inserted. It is supported so that it does not tilt when it expands or contracts. At the same time, one end 71 of the coil spring 70 is supported on the back side of the spring receiving portion 25, and the other end 72 of the coil spring 70 is supported on the back side of the spring contact portion 81 of the spring receiving member 80 to compress the coil spring 70. In the state of being held in the state, the flange portion 90a of the spring shaft 90 engages with the front peripheral edge of the shaft hole 81a of the spring receiving member 80, and the flange portion 90b of the spring shaft 90 engages with the front peripheral edge of the tubular portion 25b. do. As a result, the coil spring 70 can be assembled to the base member 20 in a state where the coil spring 70 can be expanded and contracted and is prevented from coming off by the spring receiving member 80.

Further, the fitting member 60 in this embodiment has a hollow shape in which the outer periphery of the rocking member 40 when viewed from the rocking axis direction has a circular shape and which extends in the rocking axis direction of the rocking member 40. It is a cylindrical roller. That is, the fitting member 60 has a cylindrical roller shape that extends at a predetermined length and has both ends in the axial direction open, and its outer peripheral portion 61 has a circular shape. In the present invention, the "circular shape" of the outer circumference of the fitting member means that the outer peripheral shape of the cross section of the fitting member perpendicular to the axial direction is circular. Further, in the present invention, the "rod shape" in which the fitting member extends in the swing axis direction of the swing member means that a hollow rod-shaped cylinder and a solid rod are also included, and the spherical shape is excluded. ..

Further, a pin 65 is inserted inside the fitting member 60 which is a cylindrical roller. The pin 65 has a columnar shaft portion and

flange portions

65a and 65b at both ends in the longitudinal direction thereof (see FIG. 4). Then, by inserting the pin 65 inside the fitting member 60 which is a roller, the fitting member 60 is rotatably supported with respect to the base member 20 via the pin 65. ..

The fitting member 60 is slidably supported by the base member 20, but in this embodiment, the fitting member 60 is indirectly supported by the base member 20 via the spring receiving member 80. It is designed to be slidably supported.

Then, when assembling the fitting member 60 to the spring receiving member 80, as described above, the coil spring 70 was assembled to the base member 20 in a state where the coil spring 70 could be expanded and contracted and was prevented from coming off by the spring receiving member 80. Later, between the pair of

support portions

85, 85 of the spring receiving member 80, the openings at both ends in the axial direction of the fitting member 60 are arranged so as to be aligned with the

pin insertion holes

85a, 85a. Next, the tip of the pin 65 is inserted through the back opening of the pin guide hole 29 of the base 21 of the base member 20, one pin insertion hole 85a of the spring receiving member 80, the inside of the fitting member 60, and the spring receiving member 80. The other pin insertion hole 85a is sequentially inserted and inserted through the front opening of the pin guide hole 29 of the base 23 of the base member 20. After that, the flange portion 65b is formed by caulking the tip of the pin 65.

As a result, as shown in FIG. 4, the pin 65 is inserted into the pair of pin guide holes 29, 29 of the base member 20, the pair of

pin insertion holes

85a, 85a of the spring receiving member 80, and the fitting member 60. At the same time, the flange portion 65a engages with the back side peripheral edge of the pin guide hole 29 of the base portion 21, and the flange portion 65b engages with the front side peripheral edge of the pin guide hole 29 of the base portion 23. Therefore, the fitting member 60 is indirectly slidable with respect to the base member 20 and rotatably supported with respect to the pin 65 via the spring receiving member 80.

Further, the fitting member 60 is urged by a coil spring 70, and its outer peripheral portion 61 elastically fits into the

fitting recesses

50, 51, 52 provided in the detent portion 45 of the swing member 40. It has become like. The fitting member 60 of this embodiment is configured to indirectly receive the spring load of the coil spring 70 by being supported by the spring receiving member 80, instead of directly receiving the spring load of the coil spring 70. That is, one end 71 of the coil spring 70 abuts on the back side of the spring receiving portion 25 of the base member 20 and is supported, and the other end 72 abuts and supports the back side of the spring abutting portion 81 of the spring receiving member 80. Therefore, the spring load is applied to the fitting member 60 supported by the spring receiving member 80 via the spring contact portion 81. The fitting member may be configured to directly receive the urging force due to the spring load of the coil spring.

Further, the shape and structure of the above-mentioned fitting member is not particularly limited as long as the outer circumference has a circular shape and the swing member has a rod shape extending in the swing axis direction. For example, the fitting member may be a drum-shaped roller with a bulging center in the axial direction, a flange portion may be provided at one end and / or the other end in the axial direction, or a plurality of detent portions may be fitted in the center of the outer periphery of the fitting member. An annular groove may be formed with a groove width sufficient to fit in the recess.

Further, the fitting member can be formed from a metal material, a synthetic resin material, or the like. When the fitting member is made of a metal material, the outer periphery thereof may be subjected to, for example, nitriding treatment to increase the hardness.

Further, in this embodiment, the pin 65 is inserted inside the fitting member 60, and the fitting member 60 is rotatably supported by the pin 65. For example, it is shown inside the fitting member 60. By applying a non-adhesive and adhering the pin 65 to the inside of the fitting member 60, the fitting member 60 can be integrated with the pin 65, or the inner diameter of the fitting member 60 can be made smaller than the outer diameter of the pin. The fitting member 60 may be integrated with the pin 65 by forming and press-fitting the pin 65 inside the fitting member 60.

Further, the above-mentioned spring shaft and pin are not crimped at the tip, and may be composed of, for example, a bolt or a nut screwed to the bolt, and are not particularly limited.

Then, in the detent device 10, the fitting member 60 is in contact with the plurality of

protrusions

46, 47, 48, 49 provided in the detent portion 45 of the swing member 40, and the swing member 40 with respect to the base member 20. Along with the swinging of the above, the tops of the plurality of protrusions (here, the tops 47a of the protrusions 47 and the tops 48a of the protrusions 48) are overcome and moved between the plurality of

fitting recesses

50, 51, 52. It is configured to be sequentially fitted into a plurality of fitting recesses 50 to 52.

More specifically, in the state shown in FIG. 5, the fitting member 60 is placed in the fitting recess 50 to the fitting recess 50 via the spring receiving member 80 urged by the spring load of the coil spring 70, which is a compression coil spring. It is urged in the direction of fitting to 52, and its outer peripheral portion 61 is fitted into the fitting recess 51 while being elastically contacted with the bottom portion 51a of the fitting recess 51 and the pair of

guide portions

51b, 51b.

In this state, when the swing member 40 swings in the direction of arrow Y1 in FIG. 5 by the lever 5 that rotates via the operation wire 3 by the operation of the shift lever 1 shown in FIG. 9, the urging force of the coil spring 70. The fitting recess 51 presses against the fitting member 60 and tries to move toward the fitting recess 50 while compressing the coil spring 70. That is, the fitting member 60 gradually escapes from the bottom portion 51a of the fitting recess 51 and moves toward the fitting recess 50 while being guided by one of the guide portions 51b of the fitting recess 51. At this time, the fitting member 60 is pressed against the guide portion 51b of the fitting recess 51, and the coil spring 70 is compressed and contracted. As shown in FIG. 6, the fitting member 60 presses the top portion 47a of the protrusion 47. When overcoming, the coil spring 70 is most compressed.

After that, when the fitting member 60 gets over the top portion 47a of the protrusion 47, the compressed coil spring 70 elastically returns and extends, and the fitting member 60 is fitted while applying a spring load to the fitting member 60. It enters the recess 50 and fits into the bottom 50a and the guide portion 50b while being elastically contacted. This state (maximum swing state of the swing member 40 in the direction of the arrow Y1) is shown in FIG.

On the other hand, the same applies to the case where the swing member 40 swings in the direction of the arrow Y2 in FIG. 5 from the state shown in FIG.

That is, when the swing member 40 swings in the direction of arrow Y2 in FIG. 5, the fitting recess 51 presses the fitting member 60 against the urging force of the coil spring 70, and while compressing the coil spring 70, It tries to move to the fitting recess 52 side, gradually escapes from the bottom portion 51a of the fitting recess 51, and moves to the fitting recess 52 side while being guided by the other guide portion 51b of the fitting recess 51. .. At this time, the fitting member 60 is pressed against the guide portion 51b of the fitting recess 51, and the coil spring 70 is compressed. However, when the fitting member 60 gets over the top portion 48a of the protrusion 48, the coil spring 70 is the most. It is compressed. After that, when the fitting member 60 gets over the top portion 48a of the protrusion 48, the compressed coil spring 70 elastically returns and stretches, and the fitting member 60 is fitted while applying a spring load to the fitting member 60. It enters the recess 52 and fits into the bottom portion 50a and the guide portion 50b while being elastically contacted. This state (maximum swing state of the swing member 40 in the direction of the arrow Y2) is shown in FIG.

Next, the operation and effect of the detent device 10 having the above configuration will be described.

That is, in the detent device 10, a coil spring 70 is adopted as an elastic force urging means for the detent spring made of a leaf spring as in Patent Document 1, and the fitting member 60 is fitted by the coil spring 70. The fitting member 60 is urged in the fitting direction of the joint recesses 50 to 52 so as to move between the plurality of fitting recesses 50 to 52 as the swing member 40 swings with respect to the base member 20. It is configured (see FIGS. 5-8).

Therefore, by appropriately adjusting the wire diameter, outer diameter, number of turns, etc. of the coil spring 70, the spring load of the coil spring can be easily increased, and the load can be increased.

In the detent spring made of a conventional leaf spring (see Patent Document 1), it is conceivable to increase the plate thickness or the like when trying to increase the elastic force, but in this case, the installation space is large. In addition, when the roller is supported by the bifurcated portion at the tip of the detent spring, it becomes difficult to create the bifurcated portion. Therefore, there is a limit to increasing the plate thickness, and it is difficult to cope with an increase in load.

On the other hand, in this detent device 10, a coil spring 70 is adopted as an elastic force applying means instead of a detent spring made of a leaf spring, and the fitting member 60 is urged by this spring load. By the method as described above, the elastic force of the coil spring 70 can be easily increased to cope with the increased load, thereby increasing the operating load of the shift lever when used for, for example, an electric vehicle or a hybrid vehicle. , The sense of moderation felt by the operator can be enhanced.

Further, in the detent device 10, the fitting member 60 moves between the plurality of fitting recesses 50 to 52 while the fitting member 60 is in contact with the plurality of protrusions 46 to 49 as the rocking member 40 swings. Therefore, for example, it can be used as an alternative structure of a detent spring for holding an operating position of a shift lever of an AT vehicle.

Further, in the detent device 10, the fitting member 60 fitted in the plurality of fitting recesses 50 to 52 has a circular outer circumference as seen from the swing axis direction of the swing member 40, and swings. The member 40 has a rod shape extending in the direction of the swing axis, and the outer circumference of the circular shape of the fitting member 60 is adapted to fit into the plurality of fitting recesses 50 to 52. Therefore, compared to a structure that gives a sense of moderation by using a ball-shaped detent ball that has a high degree of freedom and is difficult to hold, such as the shift device for vehicles of Patent Document 2, the depths of the plurality of fitting recesses 50 to 52 are deep. Since the ball can be formed deeply, the feeling of moderation when the rocking member 40 is rocked can be improved.

Further, in this embodiment, the coil spring 70 is a compression coil spring, and a spring receiving member 80 that receives the spring load of the compression coil spring is provided, and the fitting member 60 is supported by the spring receiving member 80. The fitting member 60 is urged in a direction of fitting into the fitting recesses 50 to 52 of the detent portion 45 via the spring receiving member 80.

According to this aspect, the coil spring 70 is a compression coil spring, and the fitting member 60 receives the spring load via the spring receiving member 80 (here, the fitting member 60 receives the spring load via the spring contact portion 81). A spring load can be stably applied to the member 60. Further, since the coil spring 70 is a compression coil spring, it can be made more compact than a tension spring or the like that requires a hook.

Further, in this embodiment, the fitting member 60 is composed of a cylindrical roller in which a pin 65 is inserted and rotatably supported, and both ends of the pin 65 are slidable with respect to the base member 20. Is supported by.

According to this aspect, since the fitting member 60 is a cylindrical roller rotatably supported by the pin 65, the swing member 40 swings with respect to the base member 20 and fits. When the member 60 moves between the plurality of fitting recesses 50 to 52, it is possible to easily get over the tops of the protrusions (here, the tops 47a, 48a of the protrusions 47, 48) between the fitting recesses. Further, since the cylindrical roller forming the fitting member 60 is slidably supported with respect to the base member 20 by the pin 65 inserted inside the fitting member 60, the fitting member 60 is made difficult to tilt and is stable. It can be slid in a posture.

Further, in this embodiment, the base member 20 is erected from the

bases

21 and 23 that slidably support the fitting member 60 and the

bases

21 and 23, and supports one end 71 of the coil spring 70. It has a portion 25. As described above, since the base member 20 has the

bases

21 and 23 and the spring receiving portions 25 erected from the

bases

21 and 23, the coil spring 70, the fitting member 60, and the swing member 40 are used as the base member 20. Can be easily assembled to.

That is, when assembling the coil spring 70 to the base member 20, the spring receiving portion 25 provided on the base member 20 supports one end 71 of the coil spring 70, and then the spring contact portion 81 of the spring receiving member 80 is used. The fitting member 60 can be assembled while supporting the other end 72 of the coil spring 70, and the coil spring 70 can be assembled in a compressed and held state by using the spring receiving portion 25. Therefore, it is a detent device. The assembly workability of the entire 10 is good (if the base member 20 does not have the spring receiving portion 25 for supporting one end 71 of the coil spring 70, it is difficult to assemble the coil spring 70 in a compressed state).

Further, in this embodiment, the base member 20 can be attached with an actuator for swinging the swing member 40. That is, as shown in FIG. 5, the base portion 21 of the base member 20 is provided with an actuator mounting portion 35 to which an actuator can be mounted. Therefore, the actuator can be mounted by using the actuator mounting portion 35, and the actuator can be integrated (assembled) with the base member 20. Since the actuator can be integrated by mounting the detent device 10 in advance in this way, the mounting workability can be improved as compared with the case where the detent device and the actuator are separately mounted on the vehicle.

FIGS. 10 to 12 show other embodiments of the detent device according to the present invention. The same parts as those of the above-described embodiments are designated by the same reference numerals, and the description thereof will be omitted.

In the detent device 10A in this embodiment, the slide guide structure of the fitting member 60 is different from that of the embodiment, and the spring receiving member 80 itself that supports the fitting member 60 is slidably supported with respect to the base member 20A. It has a structure that has been made.

That is, the base member 20A of the detent device 10A has a first base portion 21A and a second base portion 37 arranged to face the first base portion 21A. Further, the first base portion 21A and the second base portion 37 are arranged so as to be parallel to each other. Further, both

bases

21A and 37 have one end portions in the longitudinal direction connected to each other via a spring receiving portion 25, and both

base portions

21A and 37 and the spring receiving portion 25 are integrally formed, and are viewed from the side. , It has a curved shape so as to form a substantially U-shaped frame.

Further, the first base portion 21A has a substantially elongated plate shape, and mounting

pieces

27 and 27 extend from both sides near one end in the longitudinal direction thereof. Each mounting piece 27 is formed with a mounting hole 27a into which a fixing member (not shown) such as a screw or a bolt is inserted. Further, a shaft hole 31 through which the swing shaft 57 is inserted is formed at the other end of the first base portion 21A in the longitudinal direction. Further, a raised portion 32 that is raised in a substantially trapezoidal frame shape is formed between one end portion in the longitudinal direction of the first base portion 21A and the mounting hole 27a. The raised portion 32 is formed with a guide groove 32a extending along the longitudinal direction of the first base portion 21A. The guide groove 32a is restricted to a constant width that matches the fitting portion support portion 85 of the spring receiving member 80, and is wider than the pin guide hole 29 in the embodiment.

On the other hand, the second base portion 37 has a ceiling plate 37a having a substantially elongated plate shape, a pair of

side walls

38, 38 hung from both sides of the ceiling plate 37a near one end in the longitudinal direction, and outward from each side wall 38. It has mounting

pieces

39 and 39 that are extended to the ceiling and joined to the mounting piece 27 of the first base portion 21A so as to overlap each other. Further, a shaft hole 37b through which the swing shaft 57 is inserted is formed at the other end of the second base portion 37 in the longitudinal direction.

Further, as shown in FIG. 11, the swing shaft 57 of this embodiment has a shaft hole insertion portion 57c inserted into the shaft hole 41a and the support portion 55 of the swing member 40, and a base of the shaft hole insertion portion 57c. It has a regulating portion 57d which is continuously provided on the end side and has an outer diameter larger than that of the shaft hole insertion portion 57c. The back side of the swing member 40 is supported by the support portion 55, and the regulation portion 57d of the swing shaft 57 is arranged on the front peripheral edge of the shaft hole 41a to regulate the axial movement. (See FIG. 11).

Further, in each mounting piece 39 of the second base portion 37, a mounting hole 39a is formed at a position consistent with the mounting hole 27a formed in the mounting piece 27 of the first base portion 21A. Therefore, as shown in FIGS. 10 and 12, the pair of mounting

pieces

27, 27 of the first base portion 21 and the pair of mounting

pieces

39, 39 of the second base portion 37 are superposed on each of the mounting

holes

27a, 39a. The base member 20A is attached to the attached member by inserting a fixing member (not shown) such as a screw or a bolt and tightening and fixing the fixing member to the attached member (not shown).

Further, at a position of the ceiling plate 37a that matches the raised portion 32 of the first base portion 21A, a concave portion 24 recessed toward the first base portion 21A side is formed, and a concave portion 24 is formed at the bottom of the concave portion 24. , A guide groove 26 extending along the longitudinal direction of the base 21 is formed. The guide groove 26 is restricted to a constant width that matches the fitting portion support portion 85 of the spring receiving member 80, and is wider than the pin guide hole 29 in the embodiment.

Then, the pair of fitting

portion support portions

85 and 85 of the spring receiving member 80 are inserted into the guide groove 32a of the first base portion 21A and the guide groove 26 of the second base portion 37, respectively, so that the fitting member 60 The spring receiving member 80 that supports the base member 20 is supported so as to be slidable and the sliding operation is guided with respect to the base member 20.

As described above, the detent device 10A of this embodiment is not a configuration in which both ends of the pin 65 are slide-guided by the pin guide holes 29, 29 as in the detent device 10 of the embodiment, but is wider than the pin 65. Since the spring receiving member 80 itself is slide-guided to the base member 20A, the fitting member 60 can be supported in a more stable posture while further reducing rattling.

Further, in this embodiment, the base member 20A has a first base portion 21A and a second base portion 37 arranged to face the first base portion 21A, and the first base portion 21A and the second base portion. The swing shaft 57 is inserted through 37 (here, the swing shaft 57 is inserted through the shaft hole 31 of the base portion 21A and the shaft hole 37b of the second base portion 37, respectively), and the swing member 40 has a swing member 40. It is swingably supported with respect to the base member 20A via the swing shaft 57, and the swing shaft 57 is provided with a regulating portion 57d that regulates the axial movement of the swing member 40.

According to this aspect, since both ends of the swing shaft 57 that swings and supports the swing member 40 are supported by the first base portion 21A and the second base portion 37, the swing member 40 swings when swinging. The operation can be stabilized.

Further, in this embodiment, the base member 20A has a first base portion 21A and a second base portion 37 arranged to face the first base portion 21A, and the first base portion 21A and the second base portion. The 37 has mounting

pieces

27 and 39, respectively, and the mounting

pieces

27 and 39 have mounting

holes

27a and 39a formed at positions consistent with each other, and the mounting

pieces

27 and 39 are overlapped with each other. By inserting a fixing member (not shown) such as a screw or a bolt into each of the mounting

holes

27a and 39a and tightening and fixing the fixing member to the mounted member, the base member 20A can be mounted on the mounted member. ing.

According to this aspect, the first base portion 21A and the second base portion 37 of the base member 20A can be reliably integrated via the mounting

pieces

27 and 39, and the rigidity of the entire base member 20A can be increased. As a result, the spring receiving member 80 and the swing member 40 can be firmly sandwiched by the base member 20A, and the stability of their operation can be enhanced.

13 and 14 show still other embodiments of the detent device according to the present invention. The same parts as those of the above-described embodiments are designated by the same reference numerals, and the description thereof will be omitted.

The basic structure of the detent device 10B in this embodiment is the same as that of the detent device 10A shown in FIGS. 10 to 12, but the structure for supporting the coil spring 70 is different.

That is, as shown in FIG. 14, it is inserted from the inner surface (contact surface with one end 71 of the coil spring 70) side of the spring receiving portion 25 that supports one end 71 of the coil spring 70 to the inner circumference of the one end 71 side of the coil spring 70. The first spring support cylinder 25c having a substantially cylindrical shape is projected. Further, the inner circumference of the spring contact portion 81 constituting the spring receiving member 80 from the side facing the spring receiving portion 25 (the contact surface with the other end 72 of the coil spring 70) to the inner circumference of the other end 72 side of the coil spring 70. A second spring support cylinder 86 having a substantially cylindrical shape is projected so as to be inserted into the. The first spring support cylinder 25c and the second spring support cylinder 86 are formed with an outer diameter suitable for the inner diameter of the coil spring 70.

One end 71 of the coil spring 70 is supported on the inner surface side of the spring receiving portion 25, the first spring support cylinder 25c is inserted into the inner circumference of the one end 71 side, and the other end 72 is a spring receiving member. The first spring support cylinder 25c and the second spring support cylinder 86 are supported by the surface of 80 facing the spring receiving portion 25 and the second spring support cylinder 86 is inserted into the inner circumference on the other end 72 side. (See FIG. 14).

In this embodiment, as described above, the coil spring 70 is held by the first spring support cylinder 25c and the second spring support cylinder 86 with respect to the base member 20B. In the form, the spring shaft 90, which is necessary for holding the coil spring 70 to prevent it from coming off, becomes unnecessary, and the number of parts can be reduced. Further, since the first spring support cylinder 25c and the second spring support cylinder 86 wrap in the axial direction of the coil spring 70, it is possible to make the coil spring 70's retaining structure compact.

The present invention is not limited to the above-described embodiment, and various modified embodiments are possible within the scope of the gist of the present invention, and such embodiments are also included in the scope of the present invention. ..

10, 10A,

10B Detent device

20, 20A,

20B Base member

21,21A, 23,23A Base 40 Swing member 45

Detent part

46, 47, 48, 49

Protrusion

50, 51, 52 Fitting recess 55 Swing member Support part (support part)
57 Swing shaft 59 Washer 60 Fitting member 61 Outer circumference 65 Pin 70 Coil spring 80 Spring receiving member 90 Spring shaft

Claims

With the base member
An oscillating member that is swingably supported by the base member and is provided with a detent portion having a plurality of protrusions and a plurality of fitting recesses formed between the plurality of protrusions.
The outer circumference of the rocking member when viewed from the rocking axis direction has a circular shape and a rod shape extending in the rocking axis direction of the rocking member, and the base member is directed toward the detent portion. With a fitting member that is slidably supported and the outer circumference of the circular shape fits into the fitting recess.
It has a coil spring that urges the fitting member in a direction in which the fitting member is fitted into the fitting recess of the detent portion.
The fitting member is configured to overcome the protrusion and sequentially fit into the plurality of fitting recesses as the swinging member swings with respect to the base member. Device.
The coil spring is a compression coil spring.
A spring receiving member that receives the spring load of the compression coil spring is provided.
The fitting member is supported by the spring receiving member, and the fitting member is supported.
The detent device according to claim 1, wherein the fitting member is urged in a direction of fitting into the fitting recess of the detent portion via the spring receiving member.
The base member has a spring receiving portion that supports one end of the coil spring, and a first spring support cylinder that is inserted into the inner circumference of one end side of the coil spring is projected from the spring receiving portion. Ori,
The spring receiving member is provided with a second spring support cylinder that is inserted into the inner circumference of the other end side of the coil spring.
The detent device according to claim 2, wherein the coil spring is held by the first spring support cylinder and the second spring support cylinder with respect to the base member.
The fitting member comprises a cylindrical roller in which a pin is inserted and rotatably supported, and both ends of the pin are slidably supported with respect to the base member. The detent device according to any one of 3.
The detent device according to claim 2, wherein the spring receiving member is slidably supported with respect to the base member.
The one according to any one of claims 1 to 5, wherein the base member has a base portion that slidably supports the fitting member and a spring receiving portion that stands upright from the base portion and supports one end of the coil spring. Detent device.
The detent device according to any one of claims 1 to 6, wherein the base member can be attached with an actuator that swings the swing member.
The base member has a first base portion and a second base portion arranged so as to face the first base portion.
A swing shaft is inserted through the first base and the second base.
The detent device according to any one of claims 1 to 7, wherein the swing member is swingably supported with respect to the base member via the swing shaft.
The base member has a first base portion and a second base portion arranged so as to face the first base portion.
Mounting pieces are provided in the first base portion and the second base portion, respectively, and mounting holes are formed in the mounting pieces at positions consistent with each other.
Any of claims 1 to 8 in which the base member is attached to the attached member by superimposing both attachment pieces, inserting a fixing member into each attachment hole, and tightening and fixing the fixing member to the attached member. The detent device described in one.