JP2015222115A - Meshing engagement device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a meshing engagement device which can reduce a space necessary for the accommodation of an elastic member.SOLUTION: A meshing engagement device 10 comprises: an armature 24 and a sleeve 12 which reciprocate in a prescribed direction by an electromagnetic actuator 20; a piece 11; a waiting mechanism spring 28 which is arranged between the armature 24 and the sleeve 12, and energizes the sleeve 12 in an engagement direction; and a return spring 25 which energizes the armature 24 in a direction in which the armature separates from the piece 11. The piece 11 rotates in conjunction with a rotating element, and the armature 24 and the sleeve 12 are arranged around an axial line C of the rotating element. The waiting mechanism spring 28 and the return spring 25 are annularly aligned around the axial line C, and a region in which the waiting mechanism spring 28 is arranged and a region in which the return spring 25 is arranged are arranged so as alternately align in an annular shape around the axial line C.

Description

  The present invention relates to a meshing engagement device.

  Conventionally, a waiting mechanism spring is compressed in a state in which the end surfaces of the opposite dog teeth abut against each other, and the dog teeth are pushed into engagement with each other when the dog teeth are engaged with each other; There is known a meshing engagement device provided with a return spring for returning to (see, for example, Patent Document 1). In this meshing engagement device, the waiting mechanism spring and the return spring are disposed in parallel along the rotational axis of the dog teeth, and are disposed side by side radially inward and outward at the same circumferential position.

JP 2011-518291 gazette

  In the conventional meshing engagement device, since the waiting mechanism spring and the return spring are disposed radially overlapping at the same circumferential position, the space for accommodating the waiting mechanism spring and the return spring is in the radial direction. It's a big deal. In the conventional meshing engagement device, there is room for improvement in terms of reducing the space required to accommodate an elastic member such as a waiting mechanism spring or a return spring.

  This invention is made in view of the above, Comprising: It aims at providing the meshing engagement apparatus which can reduce the space required for accommodation of an elastic member.

  In order to solve the above problems, the meshing engagement device according to the present invention reciprocates in the predetermined direction interlocking with the movement of the movable portion that reciprocates in a predetermined direction by receiving a predetermined external force, and the movable portion A first meshing engagement element, a second meshing engagement element which is engaged or released in response to the movement of the first meshing engagement element, and between the movable portion and the first meshing engagement element A first elastic member arranged to urge the first meshing engagement element into engagement with the second meshing engagement element, and moving the movable portion away from the second meshing engagement element And a second elastic member for urging, wherein the second meshing engagement element rotates in conjunction with the rotation element, and the predetermined direction in which the movable portion and the first meshing engagement element reciprocate is the second elastic member. An axial direction of a rotation axis of the rotation element and the second meshing engagement element, the movable portion and the The meshing engagement element is provided around the rotation axis, and the first elastic member and the second elastic member are arranged annularly around the rotation axis, and one or more of the first elastic members are provided. The plurality of areas and the area in which one or more of the second elastic members are arranged are formed to be alternately arranged annularly around the rotation axis.

  Further, in the above-mentioned meshing engagement device, it is preferable that the first elastic member and the second elastic member are alternately arranged one by one along the circumferential direction around the rotation axis.

  Further, in the above-mentioned meshing engagement device, the first elastic member and the second elastic member are alternately arranged in the order of a plurality of one and the other in the circumferential direction around the rotation axis. Preferably.

  Further, the above-mentioned meshing engagement device has a fitting portion which accommodates the movable portion and the first meshing engagement element, and which splines the first meshing engagement element so as to be movable in the axial direction. A storage member, and a support member for supporting the movable portion so as to be movable in the axial direction, wherein the maximum value of the gap between the movable portion and the support member in the radial direction from the rotation axis is the first Preferably, it is set to be larger than the maximum value of the gap between one meshing engagement element and the fitting portion.

  The meshing engagement device according to the present invention accommodates the first elastic member and the second elastic member in order to arrange the first elastic member and the second elastic member annularly around the rotation axis on which the engagement element is arranged. The radial length required to do this can be reduced, and the space required to accommodate the elastic member can be reduced.

FIG. 1 is a schematic cross-sectional view showing a schematic configuration of a meshing engagement device according to an embodiment of the present invention, and is a longitudinal cross-sectional view at phase 1 in FIG. FIG. 2 is a schematic cross-sectional view showing a schematic configuration of the meshing engagement device according to the present embodiment, and is a longitudinal cross-sectional view at phase 2 in FIG. FIG. 3 is an arrow view showing a schematic configuration of the sleeve, the return spring, and the waiting mechanism spring when viewed from the direction shown by arrow A in FIGS. FIG. 4 is a schematic cross-sectional view showing a schematic configuration of the meshing engagement device according to the first modified example of the embodiment, and is a longitudinal cross-sectional view at phase 1 in FIG. FIG. 5 is an arrow showing a schematic configuration of a sleeve, a return spring, and a waiting mechanism spring when viewed from the direction shown by arrow A in FIGS. 1 and 2 in the meshing engagement device according to the second modification of the embodiment. FIG.

  Below, an embodiment of a meshing engagement device concerning the present invention is described based on a drawing. In the following drawings, the same or corresponding parts are denoted by the same reference numerals, and the description thereof will not be repeated.

[Embodiment]
With reference to FIGS. 1-3, the structure of the meshing engagement apparatus 10 which concerns on one Embodiment of this invention is demonstrated. FIG. 1 is a schematic cross-sectional view showing a schematic configuration of a meshing engagement device according to an embodiment of the present invention, and is a longitudinal cross-sectional view at phase 1 in FIG. FIG. 2 is a schematic cross-sectional view showing a schematic configuration of the meshing engagement device according to the present embodiment, and is a longitudinal cross-sectional view at phase 2 in FIG. FIG. 3 is an arrow view showing a schematic configuration of the sleeve, the return spring, and the waiting mechanism spring when viewed from the direction shown by arrow A in FIGS.

  The meshing engagement device 10 shown in FIGS. 1 and 2 is incorporated into, for example, a power transmission device for transmitting power from a drive source such as an engine or a motor generator to an output shaft in a hybrid vehicle. The meshing engagement device 10 connects, for example, a brake device that regulates the rotation of a part of the rotation element of the power transmission device and two rotation elements in order to control the power transmitted from the power transmission device to the output shaft. Used as a clutch device. The detailed structure such as the overall configuration of the power transmission device is not directly related to the subject matter of the present invention, and therefore the description thereof is omitted.

  As shown in FIGS. 1 and 2, the meshing engagement device 10 includes a piece 11 (second meshing engagement element), a sleeve 12 (first meshing engagement element), a hub bracket 15 (housing member), an electromagnetic actuator 20, And an ECU 30 (Electronic Control Unit).

  The piece 11 and the sleeve 12 are arranged around the above mentioned rotating element. This rotation element rotates around an axis C drawn by the alternate long and short dash line in the left and right direction in the lower part of FIGS. 1 and 2, and in the following description, the left and right direction of the drawing corresponds to the rotation axis of the rotation element. The “axial direction”, which is the extending direction of the (axis line C), and the vertical direction are expressed as the “radial direction” of the rotating element. Also, the direction around the axis C is expressed as the “circumferential direction” of the rotation element.

  The piece 11 integrally rotates around the axis C in conjunction with the rotation element. Movement of the piece 11 in the axial and radial directions is restricted.

  The sleeve 12 is disposed radially outward of the piece 11. The sleeve 12 is splined to the hub bracket 15. The hub bracket 15 is fixed to a case (not shown) that includes the components of the power transmission device. That is, the sleeve 12 is configured to be movable in the axial direction by being spline-fitted to the hub bracket 15, and the radial movement and the rotation around the axis C are restricted. The sleeve 12 also has a pinched portion 12a extending radially outward. The to-be-held part 12a is formed in the substantially annular shape centering on the axis line C. As shown in FIG.

  The piece 11 and the sleeve 12 can engage / release the inner peripheral surface of the sleeve 12 and the outer peripheral surface of the piece 11 by the axial movement of the sleeve 12. A plurality of dog teeth 13 are disposed on the outer peripheral surface of the piece 11 along the circumferential direction around the axis C toward the radially outer side. A plurality of dog teeth 14 are disposed on the inner circumferential surface of the sleeve 12 radially inward along the circumferential direction around the axis C. These dog teeth 13 and 14 are meshing dog clutches. The sleeve 12 moves in a direction (engagement direction) approaching the piece 11, and the dog teeth 14 of the sleeve 12 are brought into close engagement with the dog teeth 13 of the piece 11 to engage with each other. The sleeve 12 can be engaged. By spline-fitting the sleeve 12 with the piece 11, the rotation of the rotary element interlocking with the piece 11 can be fixed. In addition, the sleeve 12 moves in a direction to separate from the piece 11 (release direction), and the dog teeth 14 of the sleeve 12 are separated from the dog teeth 13 of the piece 11 to release the engagement between the sleeve 12 and the piece 11 It can be done.

  In FIG. 1, the sleeve 12 is disposed on the left side with respect to the piece 11, and is configured to engage with the piece 11 when the sleeve 12 moves rightward and release from the piece 11 when moving leftward. In the following description, the right direction in FIG. 1 is also referred to as “engagement direction”, and the left direction is also referred to as “release direction”.

  The electromagnetic actuator 20 is a power source that generates a driving force in the axial direction and moves the sleeve 12 in the axial direction. As shown in FIG. 1, specifically, the electromagnetic actuator 20 of the present embodiment is an electromagnetic solenoid actuator. The electromagnetic actuator 20 is disposed around the rotating element that rotates about the axis C and radially outside the piece 11 and the sleeve 12.

  The electromagnetic actuator 20 includes an electromagnetic coil 21, an inner yoke 22, an outer yoke 23, an armature 24 (movable portion), a return spring 25 (second elastic member), and a waiting mechanism spring 28 (first elastic member). Prepare.

  The inner yoke 22 is disposed around the electromagnetic coil 21 from the engagement direction side, and the outer yoke 23 is disposed around the electromagnetic coil 21 from the release direction side. The inner yoke 22 and the outer yoke 23 are connected at the radially outer side of the electromagnetic coil 21 and fixed together in the case. That is, the inner yoke 22 and the outer yoke 23 function as a fixing portion fixedly arranged around the electromagnetic coil 21 so as to sandwich the electromagnetic coil 21 from both sides in the axial direction. Further, the inner yoke 22 and the outer yoke 23 are not connected to each other on the inner side in the radial direction of the electromagnetic coil 21, and an opening 26 is formed in a part on the inner side in the radial direction of the electromagnetic coil 21. The inner yoke 22 and the outer yoke 23 are both formed of magnetic material.

  The armature 24 is disposed radially inward of the inner yoke 22 and the outer yoke 23 and radially outward of the sleeve 12. The armature 24 is installed movably in the axial direction, and the axial movement can apply thrust to the sleeve 12.

  The armature 24 is composed of two members, a first member 24a and a second member 24b. The first member 24a of the armature 24 is disposed so as to be able to abut on the pinched portion 12a of the sleeve 12 from the axial release direction side, and the second member 24b is pinched by the radially inward pinching portion 24g. It is arrange | positioned so that contact | abutting with the held part 12a of the sleeve 12 is possible from the engagement direction side. That is, the armature 24 is disposed in a state in which the pinched portion 12 a of the sleeve 12 is sandwiched from both sides in the axial direction, and the interlockability between the armature 24 and the sleeve 12 can be improved. Also, with this configuration, the assemblability of the sleeve 12 disposed between the first member 24a and the second member 24b can be ensured.

  The first member 24a of the armature 24 is axially movably supported on the radially inner side of the outer yoke 23 via a support member 27 such as a plating or a bush, and the second member 24b is an inner It is supported movably in the axial direction via the support member 27 at the radially inner side of the yoke 22. That is, the first member 24a and the second member 24b are individually supported by the fixing portions (inner yoke 22 and outer yoke 23). That is, the armature 24 has two support points by the fixed portion along the axial direction, and is supported at both ends (two-point support), so that the stability of axial movement can be improved, and the thrust to the sleeve 12 It is comprised so that transmission of can be performed efficiently.

  The armature 24 is formed as an integral member by press-fitting and fixing the second member 24b to the first member 24a. As a result, even if the armature 24 is formed of a plurality of members, integral operation is possible while realizing downsizing of the radial and axial dimensions, improvement in assembling performance, and performance improvement by inertia reduction. The first member 24a and the second member 24b of the armature 24 may be fastened by fastening means such as bolts.

  Further, the first member 24 a of the armature 24 has a protruding portion 24 c that protrudes radially outward and protrudes in the axial engagement direction side. The protrusion 24 c is inserted into the opening 26 between the inner yoke 22 and the outer yoke 23. A stopper surface 24 d orthogonal to the movement direction of the armature 24 is provided on the end surface of the protrusion 24 c on the engagement direction side. On the other hand, the end face of the inner yoke 22 on the release direction side is also provided with a stopper face 22 a at a position facing the stopper face 24 d of the armature 24. When the armature 24 moves in the engagement direction, the stopper surface 24 d of the armature 24 abuts against the stopper surface 22 a of the inner yoke 22, whereby the movement of the armature 24 in the engagement direction can be stopped.

  The first member 24a of the armature 24 is formed of a magnetic material, and the second member 24b is formed of a nonmagnetic material. Thereby, the magnetic path other than the necessary part is blocked even if the air gap or the like is not provided in the support portion (support member 27) of the first member 24a and the second member 24b and the fixing portion (inner yoke 22 and outer yoke 23) It is possible to

  Moreover, each support part of the two-point support of the armature 24 and the fixing part is set in accordance with the radial dimension. That is, the supporting portions of the first member 24 a of the armature 24 and the outer yoke 23 and the supporting portions of the second member 24 b and the inner yoke 22 are disposed at the same radial position. Here, "the same radial position of both support portions" means that the deviation of the radial dimension of each support portion is within a predetermined range (for example, ± 0.2 mm or less). Thereby, processing accuracy can be improved and support accuracy can be improved.

  The return spring 25 is disposed between the second member 24 b of the armature 24 and the inner yoke 22. The return spring 25 is, for example, a compression spring and is held in an appropriately compressed state, and biases the armature 24 in the release direction, that is, in the direction away from the piece 11. The return spring 25 generates a large biasing force in the release direction as the movement of the armature 24 in the engagement direction proceeds, that is, as the degree of engagement between the sleeve 12 and the piece 11 increases.

  The waiting mechanism spring 28 is provided between the first member 24 a of the armature 24 and the pinched portion 12 a of the sleeve 12. The waiting mechanism spring 28 is disposed so as to be extensible and contractible in the axial direction in accordance with the relative positional relationship between the armature 24 and the supported portion 12 a of the sleeve 12 in the axial direction. Typically, the waiting mechanism spring 28 is configured to bias the sleeve 12 into engagement with the piece 11 as the armature 24 moves in the engagement direction.

  In particular, in the present embodiment, the return spring 25 and the waiting mechanism spring 28 are annularly arranged at positions different in phase around the axis C as shown in FIG. 3. That is, as shown in FIG. 3, the return springs 25 and the waiting mechanism springs 28 are disposed at substantially the same radial position, and alternately disposed along the circumferential direction. That is, considering the longitudinal cross-sectional shape passing through the axis C of the meshing engagement device 10, the return spring 25 shown in FIG. 1 is included in the phase shown as “phase 1” in FIG. The longitudinal cross-sectional shape and the longitudinal cross-sectional shape including the waiting mechanism spring 28 shown in FIG. 2 at the phase shown as “phase 2” in FIG. 3 appear alternately.

  Further, the return spring 25 and the waiting mechanism spring 28 are disposed so as to at least partially overlap in the circumferential direction. Here, as shown in FIGS. 1 and 2, the second member 24b of the armature 24 extends in the axial direction from the sandwiching portion 24g along the radially inner surface of the first member 24a. It has the cylindrical part 24e which extends, and the connection part 24f which extends inward in the radial direction from the end of the cylindrical part 24e in the release direction. The return spring 25 has been described above as being disposed between the second member 24b of the armature 24 and the inner yoke 22. More specifically, as shown in FIG. 1, the return spring 25 is of the second member 24b of the armature 24. It is provided between the connecting portion 24 f and the inner yoke 22. On the other hand, as described above, the waiting mechanism spring 28 is provided between the first member 24a of the armature 24 and the clamped portion 12a of the sleeve 12 as shown in FIG. The connection portion 24f, which is the connection position of the end portion on the release direction side of the return spring 25, is always located on the release direction side with respect to the clamped portion 12a that is the connection position of the end portion on the engagement direction side of the wait mechanism spring Do. Therefore, the return spring 25 is arranged to overlap at least a part with the waiting mechanism spring 28 along the circumferential direction.

  In order to arrange the return spring 25 and the waiting mechanism spring 28 as described above, the pinched portion 12 a of the sleeve 12 has a periphery where the return spring 25 is disposed at the outer edge of the substantially annular shape centering on the axis C. In the direction position, as shown in FIG. 3, it is formed so as to be concave radially inward. That is, the pinched portion 12a of the sleeve 12 is formed in a so-called petal shape having a recess periodically on the outer periphery of the circular shape in the A direction view. Thus, the return spring 25 can be inserted from the engagement direction side to the release direction side.

  The hub bracket 15 extends around the axis C, adjacent to the piece 11, and has an inner cylindrical portion 15a which splines with the sleeve 12. The hub bracket 15 has a shape extending radially outward from the inner cylindrical portion 15a along the shape of the electromagnetic actuator 20 while covering the sleeve 12 and the electromagnetic actuator 20, and a case (shown in FIG. It is bolted to (not shown). That is, the hub bracket 15 also functions as a housing member for housing the electromagnetic actuator 20 (the electromagnetic coil 21 and the armature 24) and the sleeve 12.

  The inner cylindrical portion 15a of the hub bracket 15 is disposed radially inward of the sleeve 12, and on the outer peripheral surface of the inner cylindrical portion 15a, a plurality of spline teeth 15c extend radially outward in the circumferential direction. It is arranged. The sleeve 12 is splined to the hub bracket 15 by inserting the dog teeth 14 between the spline teeth 15c, and is axially movably supported. That is, in the present embodiment, the inner cylindrical portion 15a of the hub bracket 15 functions as a fitting portion for spline fitting the sleeve 12 so as to be movable in the axial direction.

  Here, the maximum value of the radial gap between the sleeve 12 and the inner cylindrical portion 15a (fitting portion) of the hub bracket 15, that is, the radial play is smaller than the radial play between the armature 24 and the support member 27. It is configured as follows. As a result, since radial collisions between the armature 24 and the support member 27 can be suppressed, the sleeve radial load generated upon contact between the sleeve 12 and the piece 11 is less likely to be input to the support member 27, and the durability of the support member 27 It is configured to improve the

  The ECU 30 is a control device that controls each part of the vehicle based on information of various sensors in the vehicle. In the present embodiment, the ECU 30 is connected to the electromagnetic actuator 20 of the meshing engagement device 10, and controls the movement of the sleeve 12 in the axial direction by controlling the operation of the electromagnetic actuator 20, thereby the meshing engagement device The engagement / release of 10 can be controlled.

  The ECU 30 is physically an electronic circuit mainly composed of a known microcomputer including a central processing unit (CPU), a random access memory (RAM), a read only memory (ROM), an interface, and the like. Each function of the ECU 30 loads an application program stored in the ROM into the RAM and executes it by the CPU, thereby operating various devices in the vehicle under the control of the CPU and reading data from the RAM and the ROM. It is realized by writing and writing.

  In such a meshing engagement device 10, when the electromagnetic coil 21 of the electromagnetic actuator 20 is in the non-excitation state, the electromagnetic actuator 20 is stopped, and the sleeve 12 is engaged via the second member 24b of the armature 24. The biasing force of the return spring 25 is received in the release direction. By this biasing force, as shown in FIG. 1, the sleeve 12 is held at a predetermined position on the inner cylindrical portion 15 a of the hub bracket 15 which is separated from the piece 11, and is not meshed with the piece 11. That is, when the electromagnetic actuator 20 is in the non-excitation state, the meshing engagement device 10 is in the released state, and the piece 11 can rotate in conjunction with the rotating element.

  When the electromagnetic coil 21 is excited in response to a control command from the ECU 30, the inner yoke 22 of the magnetic body disposed around the electromagnetic coil 21, the outer yoke 23, and the first member 24a of the armature 24 are circulated. A magnetic circuit M is formed. The magnetic circuit M is formed to cross a gap between the stopper surface 24d of the projection 24c of the armature 24 and the stopper surface 22a of the inner yoke 22, as shown in FIGS. Accordingly, the armature 24 is magnetically attracted toward the inner yoke 22 while being guided by the inner peripheral surfaces of the inner yoke 22 and the outer yoke 23. The armature 24 moves in the engagement direction against the return spring 25 by the magnetic attraction (electromagnetic force). With the operation of the armature 24, the sleeve 12 receives a thrust force via the waiting mechanism spring 28 and moves in the engagement direction, and the dog teeth 14 of the sleeve 12 are engaged with the dog teeth 13 of the piece 11 to engage. That is, when the electromagnetic actuator 20 is in the excited state, the meshing engagement device 10 is in the engaged state, and the rotation of the rotary element coupled to the piece 11 can be stopped.

  Next, the effect of the meshing engagement device 10 according to the present embodiment will be described.

  The meshing engagement device 10 according to the present embodiment engages with the armature 24 interlockingly moving with the movement of the armature 24 that reciprocates in the engagement direction and the release direction by receiving a magnetic attraction force (a predetermined external force) from the electromagnetic actuator 20. A sleeve 12 reciprocating in direction and release direction, a piece 11 which is engaged or released in response to movement of the sleeve 12, disposed between the armature 24 and the sleeve 12 and engaging the sleeve 12 with the piece 11 And a return spring 25 for biasing the armature 24 in a direction away from the piece 11. The piece 11 rotates in conjunction with the rotation element, and the direction in which the armature 24 and the sleeve 12 reciprocate is the axial direction of the rotation axis C of the rotation element and the piece 11, and the armature 24 and the sleeve 12 It is provided around. The waiting mechanism spring 28 and the return spring 25 are arranged annularly at different positions around the axis C in phase. In other words, the area where one waiting mechanism spring 28 is arranged and the area where one return spring 25 is arranged are alternately arranged in an annular manner around the axis C.

  With this configuration, in the meshing engagement device 10 of the present embodiment, the waiting mechanism spring 28 and the return spring 25 are not arranged at the same phase position around the axis C. That is, the waiting mechanism spring 28 and the return spring 25 are not arranged side by side radially inward and outward at the same circumferential position around the axis C. In the meshing engagement device 10 of the present embodiment, the waiting mechanism spring 28 and the return spring 25 are arranged annularly at different positions around the axis C so that their radial positions become substantially the same. It becomes possible to easily arrange the waiting mechanism spring 28 and the return spring 25 as described above. Thus, the radial length required to accommodate the waiting mechanism spring 28 and the return spring 25 can be reduced.

  Furthermore, the waiting mechanism spring 28 and the return spring 25 can be arranged to overlap at least partially along the circumferential direction around the axis C. Thereby, the waiting mechanism spring 28 and the return spring 25 can be alternately arranged after securing the set length of each other, and the axial physical size of the spring element can be reduced. That is, the axial length required to accommodate the waiting mechanism spring 28 and the return spring 25 can also be reduced. In this manner, the meshing engagement device 10 of the present embodiment can reduce the radial and axial lengths necessary to accommodate the waiting mechanism spring 28 and the return spring 25, and as a result, the waiting can be performed. The space for housing the mechanism spring 28 and the return spring 25 can be reduced.

  Further, the meshing engagement device 10 of the present embodiment accommodates the armature 24 and the sleeve 12 and has a hub bracket 15 having an inner cylindrical portion 15a as a fitting portion for spline fitting the sleeve 12 so as to be movable in the axial direction. And a support member 27 which supports the armature 24 movably in the axial direction. In the radial direction from the axis C, the maximum value (radial rattling) of the gap between the armature 24 and the support member 27 is set larger than the maximum value of the gap between the sleeve 12 and the inner cylindrical portion 15a of the hub bracket 15 .

  With this configuration, for example, when the sleeve 12 is fitted to the piece 11, radial sagging occurs in the sleeve 12, and even if this sagging is transmitted to the armature 24, the armature 24 and the support member 27 Since the contact is difficult, the durability of the support member 27 can be improved.

[Modification]
Next, a modification of the above embodiment will be described with reference to FIGS. FIG. 4 is a schematic cross-sectional view showing a schematic configuration of the meshing engagement device according to the first modified example of the embodiment, and is a longitudinal cross-sectional view at phase 1 in FIG. In the above embodiment, as shown in FIG. 1, the return spring 25 has a configuration in which the end on the release direction side is connected to the connecting portion 24 f of the second member 24 b of the armature 24. However, the return spring 25 only needs to be able to extend in the release direction side of the clamped portion 12 a of the sleeve 12, and for example, as shown in FIG. 4, the end in the release direction is connected to the first member 24 a of the armature 24. It is good also as composition.

  FIG. 5 is an arrow showing a schematic configuration of a sleeve, a return spring, and a waiting mechanism spring when viewed from the direction shown by arrow A in FIGS. 1 and 2 in the meshing engagement device according to the second modification of the embodiment. FIG. In the above embodiment, as shown in FIG. 3, the return spring 25 and the waiting mechanism spring 28 are alternately arranged one by one along the circumferential direction around the axis C. However, the return springs 25 and the waiting mechanism springs 28 may be annularly arranged along the circumferential direction, and may not be alternately arranged one by one. For example, as shown in FIG. 5, one of the waiting mechanism spring 28 and the return spring 25 is arranged so that two waiting mechanism springs 28 and one return spring 25 are alternately arranged in the circumferential direction. The configuration may be such that a plurality of them and the other are alternately arranged in the order of one. Also, even in a configuration in which the area in which one or more waiting mechanism springs 28 are arranged and the area in which one or more return springs 25 are arranged are alternately arranged in an annular manner around the axis C. Good.

  While the embodiments of the present invention have been described above, the above embodiments are presented as examples, and are not intended to limit the scope of the invention. The embodiment described above can be implemented in other various forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. The above embodiments and the modifications thereof are included in the invention described in the claims and the equivalents thereof as well as included in the scope and the gist of the invention.

  In the above embodiment, the electromagnetic actuator 20 is illustrated as a means for applying the thrust in the engagement direction to the sleeve 12. However, if the armature 24 and the sleeve 12 can be applied with thrust, oil pressure, air pressure, etc. may be used instead. As a power source.

  Although the above-mentioned embodiment illustrated the composition which meshing engagement device 10 is provided with return spring 25 and waiting mechanism spring 28, return spring 25 and waiting mechanism spring 28 are elements which can be urged in the release direction and the engagement direction, respectively. For example, it may be replaced by an elastic material other than a spring, such as an elastic material such as rubber or urethane, or an air damper.

10 meshing engagement device 11 piece (second meshing engagement element)
12 sleeve (first meshing engagement element)
15 Hub bracket (housing member)
15a Inner cylindrical part (fitting part)
24 armature (movable part)
25 Return spring (second elastic member)
27 support member 28 waiting mechanism spring (first elastic member)
C axis

Claims (4)

A movable portion that receives a predetermined external force and reciprocates in a predetermined direction;
A first meshing engagement element that reciprocates in the predetermined direction in conjunction with the movement of the movable portion;
A second meshing engagement element which is engaged or released according to the movement of the first meshing engagement element;
A first elastic member disposed between the movable portion and the first meshing engagement element and biasing the first meshing engagement element in a direction to engage the second meshing engagement element;
A second elastic member urging the movable portion in a direction away from the second meshing engagement element;
Equipped with
The second meshing engagement element rotates in conjunction with the rotation element;
The predetermined direction in which the movable portion and the first meshing engagement element reciprocate is an axial direction of the rotation axis of the rotating element and the second meshing engagement element,
The movable part and the first meshing engagement element are provided around the rotation axis,
The first elastic member and the second elastic member are arranged annularly around the rotation axis,
The area in which one or more of the first elastic members are arranged, and the area in which one or more of the second elastic members are arranged are alternately arranged in an annular manner around the rotation axis. A meshing engagement device characterized by The meshing engagement device according to claim 1, wherein the first elastic member and the second elastic member are alternately arranged one by one along a circumferential direction around the rotation axis. The first elastic member and the second elastic member are alternately arranged in the order of a plurality of one and a single one along the circumferential direction around the rotation axis. The meshing engagement device according to 1. An accommodating member that accommodates the movable portion and the first meshing engagement element, and has a fitting portion that splines the first meshing engagement element so as to be movable in the axial direction;
A support member that supports the movable portion so as to be movable in the axial direction;
Equipped with
In the radial direction from the rotation axis, the maximum value of the gap between the movable part and the support member is set to be larger than the maximum value of the gap between the first meshing engagement element and the fitting part The meshing engagement device according to any one of claims 1 to 3, characterized in that:

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