JP6996391B2 - Drive transmission device and drive device - Google Patents

Description

The present invention relates to a drive transmission device, a drive device including the drive transmission device, and a method for manufacturing the drive device.

In a vehicle drive device, a drive transmission device provided between a wheel drive force source and a transmission and in which a rotary member on the drive force source side and a rotary member on the transmission side are fastened and fixed in the axial direction is used. Has been done. For example, Japanese Patent Application Laid-Open No. 2015-86899 (Patent Document 1) describes a drive plate 20 which is a rotating member on the driving force source (engine 16) side and a cover 36 which is a rotating member on the transmission (automatic transmission 22) side. A drive transmission device in which these are fastened and fixed is disclosed. In the drive transmission device of Patent Document 1, a positioning hole 60 is provided in the drive plate 20, and a columnar positioning shaft 40 is provided in the cover 36. Then, the positioning shaft 40 is inserted into the positioning hole 60 to align the phase of the drive plate 20 and the cover 36, and in that state, the drive plate 20 and the cover 36 are fastened and fixed by the bolt 7.

However, in the drive transmission device of Patent Document 1, the drive plate 20 and the cover 36 can be assembled in the axial direction only when they are in phase with each other. Therefore, the assembly work tends to be complicated. Further, when the drive plate 20 and the cover 36 to which the positioning shaft 40 is fixed are relatively rotated while being pressed against each other in the axial direction at the time of phase matching, the parts may be scratched due to the sliding that is not always necessary between the parts. There was sex.

JP-A-2015-86899

In the drive transmission device, it is desired to facilitate the fastening work between the rotating member on the driving force source side and the rotating member on the transmission side.

The drive transmission device according to the present disclosure is
A drive transmission device provided between a wheel drive force source and a transmission, in which a rotary member on the drive force source side and a rotary member on the transmission side are fastened and fixed in the axial direction.
A first insertion hole into which the fastening member is inserted is formed in the first rotating member, which is one of the rotating member on the driving force source side and the rotating member on the transmission side.
A second insertion hole into which the fastening member is inserted is formed in the second rotating member, which is the other of the rotating member on the driving force source side and the rotating member on the transmission side.
The first rotating member is provided with a radial projecting portion that projects radially outward in a part of the circumferential direction.
The second rotating member is provided with an axially projecting portion that protrudes toward the first rotating member in the axial direction so as to overlap the existing region of the radialally projecting portion in the radial and axial directions.
The first insertion hole and the second insertion hole overlap in the axial direction in a state where the radial protrusion and the axial protrusion are in contact with each other in the circumferential direction.

According to this configuration, the radialally protruding portion and the axially protruding portion are brought into contact with each other in the circumferential direction, so that the phase of the first rotating member and the second rotating member can be aligned, and the fastening member can be in that state. Can be used for fastening work. At the time of phase matching, the first rotating member and the second rotating member are brought closer to each other in the axial direction so that the axially protruding portion overlaps with the region where the radially protruding portion exists in the axial direction, and then they are placed in the radialally protruding portion. It suffices to rotate relative to each other until the axially protruding portion abuts in the circumferential direction. Therefore, the fastening work can be easily performed. Further, since it is not necessary to rotate the first rotating member and the second rotating member relative to each other while pressing them in the axial direction, at least one of the first rotating member and the second rotating member is damaged during the fastening work including the phase matching. Can be avoided.

Further features and advantages of the techniques according to the present disclosure will be further clarified by the following illustration of exemplary and non-limiting embodiments described with reference to the drawings.

Schematic diagram of the drive device of the first embodiment Schematic cross-sectional view of the vicinity of the drive transmission device View of the drive plate from the transmission side View of the driven plate from the transmission side Schematic diagram showing the phase alignment between the drive plate and the driven plate Schematic cross-sectional view of the vicinity of the drive transmission device of the second embodiment View of the drive plate from the transmission side View of the driven plate from the transmission side Schematic diagram showing the phase alignment between the drive plate and the driven plate A view of the drive plate of the third embodiment as viewed from the transmission side. View of the driven plate from the transmission side Schematic diagram showing the phase alignment between the drive plate and the driven plate

[First Embodiment]
The first embodiment of the drive transmission device 1 and the drive device 100 will be described with reference to the drawings. The drive transmission device 1 of the present embodiment is provided in the drive device 100. Here, the drive device 100 of the present embodiment is configured as a drive device (vehicle drive device) for driving a vehicle. More specifically, the drive device 100 is configured as a drive device (drive device for a hybrid vehicle) for driving a hybrid vehicle provided with both an internal combustion engine EG and a rotary electric machine 20 as a drive force source for the wheels W. There is. In this embodiment, both the internal combustion engine EG and the rotary electric machine 20 correspond to "driving force sources".

As shown in FIG. 1, the drive device 100 includes an input shaft 10, a start clutch 15, a rotary electric machine 20, a rotor shaft 25, and a torque converter 40 in a power transmission path connecting the internal combustion engine EG and the wheel W. A shift input shaft 60, a transmission 65, and an output shaft 70 are provided. These are housed in the case 2 (drive device case).

The input shaft 10 is driven and connected to the internal combustion engine EG. The internal combustion engine EG is a prime mover (gasoline engine, diesel engine, etc.) that is driven by the combustion of fuel inside the engine to extract power. The input shaft 10 is driven and connected so as to rotate integrally with the internal combustion engine output shaft (crankshaft or the like) which is the output shaft of the internal combustion engine EG. Further, the input shaft 10 is driven and connected to the rotary electric machine 20 via the start clutch 15.

The start clutch 15 selectively connects the input shaft 10 and the rotary electric machine 20. The start clutch 15 connects the input shaft 10 and the rotary electric machine 20 in the engaged state, and disconnects the input shaft 10 and the rotary electric machine 20 in the released state. Further, the start clutch 15 can transmit the driving force in a slip-engaged state in which the input shaft 10 and the rotary electric machine 20 rotate relative to each other. As such a start clutch 15, for example, a hydraulically driven friction clutch can be used, and more specifically, a wet multi-plate clutch or the like can be used.

The rotary electric machine 20 includes a stator fixed to a case 2 which is a non-rotating member, and a rotor rotatably supported inside the stator in the radial direction. The rotary electric machine 20 receives electric power from a power storage device (not shown) to perform power, or supplies power generated by the torque of the internal combustion engine EG, the inertial force of the vehicle, or the like to the power storage device to store the electric power. The rotor of the rotary electric machine 20 is connected so as to rotate integrally with the rotor shaft 25. The rotor shaft 25 is drive-connected to the torque converter 40 via the drive plate 30 and the driven plate 50 (see FIG. 2). In this embodiment, the drive transmission device 1 includes a drive plate 30 and a driven plate 50 that are fastened and fixed in the axial direction L.

The torque converter 40 includes a pump impeller 41, a turbine runner 42 arranged axially L with respect to the pump impeller 41, and a stator 43 arranged between the pump impeller 41 and the turbine runner 42. These are housed in a torque converter cover 45 connected so as to rotate integrally with the driven plate 50. The pump impeller 41 is integrally formed with the torque converter cover 45, and rotates integrally with the rotor shaft 25 via the driven plate 50 and the drive plate 30. The turbine runner 42 is connected so as to rotate integrally with the shift input shaft 60. The shift input shaft 60 is drive-connected to the transmission 65.

The transmission 65 shifts the rotation speed of the shift input shaft 60 based on a predetermined gear ratio and transmits it to the output shaft 70. The "gear ratio" is the ratio of the rotation speed of the shift input shaft 60 to the rotation speed of the output shaft 70, and is calculated as a value obtained by dividing the rotation speed of the shift input shaft 60 by the rotation speed of the output shaft 70. The transmission 65 may be, for example, a stepped automatic transmission. When the transmission 65 is a stepped automatic transmission, the transmission 65 shifts the rotation speed of the shift input shaft 60 based on the gear ratio corresponding to the formed shift stage and transmits the speed to the output shaft 70. .. The transmission 65 may be, for example, a stepped manual transmission, a continuously variable transmission, or the like.

The output shaft 70 is drive-connected to a pair of left and right axles 80 via a differential gear device 75, and is further drive-connected to a pair of left and right wheels W. As a result, the drive device 100 can drive the vehicle by transmitting the torque of at least one of the internal combustion engine EG and the rotary electric machine 20 to the wheels W.

As described above, the drive transmission device 1 includes a drive plate 30 and a driven plate 50 that are fastened and fixed in the axial direction L. The drive transmission device 1 is provided between the internal combustion engine EG and the rotary electric machine 20, which are the drive force sources of the wheels W, and the transmission 65. The drive transmission device 1 transmits a driving force between the drive plate 30 which is a rotating member on the driving force source side and the driven plate 50 which is a rotating member on the transmission 65 side.

The drive transmission device 1 (drive plate 30, driven plate 50) is a part of the drive device 100, and is housed in the case 2 like the start clutch 15, the rotary electric machine 20, the torque converter 40, and the transmission 65. There is. As shown in FIG. 2, the case 2 has a peripheral wall portion 2A that surrounds the radial outer side of the drive plate 30 and the driven plate 50. An opening 2b is formed in the peripheral wall portion 2A of the case 2 at a position overlapping the drive plate 30 and the driven plate 50 in a radial direction. The opening 2b is formed so as to have a predetermined axial width and circumferential width. The opening 2b is provided for the purpose of introducing a second fastening member 92 for fastening and fixing the drive plate 30 and the driven plate 50 into the case 2 and operating the second fastening member 92 in the case 2. Has been done.

In order to fasten and fix the drive plate 30 and the driven plate 50, it is first necessary to perform phase matching between the drive plate 30 and the driven plate 50. Moreover, the phase matching must be performed in the narrow case 2 through the narrow opening 2b formed in the peripheral wall portion 2A. Therefore, the drive transmission device 1 of the present embodiment incorporates a phase matching facilitation mechanism so that the phase matching between the drive plate 30 and the driven plate 50 can be easily performed. Hereinafter, this phase matching facilitation mechanism will be described together with the specific structures of the drive plate 30 and the driven plate 50.

As shown in FIGS. 2 and 3, the drive plate 30 is formed in an annular plate shape having a central hole 31 as a whole. Further, the drive plate 30 has an inner insertion hole 32, an outer insertion hole 33, a notch hole 35, and an axial protrusion 36.

The inner insertion hole 32 is formed in a radial inner region (a region around the central hole 31) of the annular plate-shaped drive plate 30. A plurality of inner insertion holes 32 (8 in this example) are provided, and these plurality of inner insertion holes 32 are evenly distributed in the circumferential direction C. The first fastening member 91 is inserted into the inner insertion hole 32. The first fastening member 91 is, for example, a fastening bolt. A plurality of female screw portions (the same number as the inner insertion holes 32) are formed at the shaft end portion of the rotor shaft 25 at the same pitch as the inner insertion hole 32, and the first fastening member 91 is screwed into the female screw portion. Then, the rotor shaft 25 and the drive plate 30 are fastened and fixed so as to rotate integrally.

The outer insertion hole 33 is formed in the radial outer region (region near the outer peripheral edge) of the annular plate-shaped drive plate 30. A plurality of outer insertion holes 33 (six in this example) are provided, and these plurality of outer insertion holes 33 are evenly distributed in the circumferential direction C. The second fastening member 92 is inserted into the outer insertion hole 33. In the present embodiment, the second fastening member 92 is inserted into the drive plate 30 from the side opposite to the first fastening member 91 in the axial direction L. The second fastening member 92 is, for example, a fastening bolt. The second fastening member 92 is also inserted into the insertion hole 54 formed in the driven plate 50 and screwed into the screwed member 93 fixed to the driven plate 50 to form the drive plate 30 and the driven plate 50. Is fastened and fixed so that it rotates integrally. In this embodiment, the second fastening member 92 corresponds to the "fastening member".

The notch hole 35 is formed in a region (a region near the outer peripheral edge) on the outer side in the radial direction of the annular plate-shaped drive plate 30. In the present embodiment, the notch hole 35 is formed in the same radial region as the outer insertion hole 33. A plurality of notch holes 35 (three in this example) are provided, and these plurality of notch holes 35 are evenly distributed in the circumferential direction C. In the present embodiment, the number of notch holes 35 is half the number of outer insertion holes 33, and a region in which the notch holes 35 are provided between two adjacent outer insertion holes 33 and a notch hole 35 are provided. The non-existing regions are formed so as to appear alternately in the circumferential direction C. In the region where the notch hole 35 is provided, the notch hole 35 is not formed at the center position in the circumferential direction C of two adjacent outer insertion holes 33, but is formed unevenly toward one of the outer insertion holes 33. .. The cutout hole 35 is formed by cutting out an annular plate-shaped drive plate 30 in an angular U-shape.

In the present embodiment, the portion of the drive plate 30 surrounded by the angular U-shaped notch hole 35 is bent in the axial direction L at the root portion thereof. In this way, the axial protrusion 36 is formed by the bent piece formed by bending a part of the annular plate-shaped drive plate 30 in the axial direction L. The axially protruding portion 36 (bent piece) is bent so as to protrude toward the driven plate 50 in the axial direction L. The axial protrusion 36 is provided so as to overlap the existing region of the driven plate 50 in the axial direction L when the drive plate 30 and the driven plate 50 are assembled. At that time, the axial protrusion 36 is provided so as to overlap the existing region of the radial protrusion 53 provided on the driven plate 50 in the radial direction R.

Since the axial protrusion 36 is formed by bending a portion surrounded by the notch hole 35, outer insertion holes 33 are formed on both sides of each axial protrusion 36 in the circumferential direction C. That is, it is referred to as one side of the circumferential direction C (hereinafter referred to as “first side in the circumferential direction”) and the other side of the circumferential direction C (hereinafter referred to as “second side in the circumferential direction”) with respect to the axially protruding portion 36. ), And a pair of outer insertion holes 33 are formed. In the present embodiment, the outer insertion hole 33 on the first side in the circumferential direction is formed at a position closer to the axial protrusion 36 than the outer insertion hole 33 on the second side in the circumferential direction.

As shown in FIGS. 2 and 4, the driven plate 50 has a boss portion 51, a flange portion 52, a radial protrusion 53, and an insertion hole 54.

The boss portion 51 is formed in a cylindrical shape. The boss portion 51 is fixed to the torque converter cover 45 by, for example, welding.

The flange portion 52 is formed in an annular plate shape so as to extend radially outward from the end portion of the boss portion 51 on the drive plate 30 side in the axial direction L. The flange portion 52 is formed in the shape of an annular plate having a constant radial width over the entire circumference. The radial width of the flange portion 52 may be, for example, about the same as the diameter of the insertion hole 54, and may be shorter than the diameter of the insertion hole 54. Further, the flange portion 52 is formed to have a size such that the end portion on the outer side in the radial direction is located on the inner side in the radial direction with respect to the axially protruding portion 36 of the drive plate 30.

The radial protrusion 53 is provided so as to project outward in the radial direction in a part of the circumferential direction C of the driven plate 50. A plurality of radial protrusions 53 (six in this example, the same number as the number of outer insertion holes 33 formed in the drive plate 30) are provided, and these plurality of radial protrusions 53 are provided in the circumferential direction C. It is evenly distributed. The radial protrusion 53 is formed in an arc strip shape having a constant radial width and circumferential width. The radial width and the circumferential width of the radial protrusion 53 are each longer than the diameter of the insertion hole 54. Further, the radial protrusion 53 is formed in such a size that the end portion on the radial outer side thereof is located on the radial outer side of the axial protrusion 36 of the drive plate 30. Further, the radial protrusion 53 is formed so that its circumferential width is shorter than the distance between the two radial protrusions 53 adjacent to each other in the circumferential direction C.

An insertion hole 54 is formed in each of the plurality of radial protrusions 53. The insertion hole 54 is formed at the center position of the radial protrusion 53 in the circumferential direction C. In this way, a plurality of (six in this example) insertion holes 54 are evenly distributed in the circumferential direction C. The second fastening member 92 inserted into the outer insertion hole 33 of the drive plate 30 is inserted into the insertion hole 54. The same number of outer insertion holes 33 of the drive plate 30 and the insertion holes 54 of the driven plate 50 are formed at the same radial position and the same circumferential spacing with the drive plate 30 and the driven plate 50 aligned. Has been done.

In the present embodiment, the screwed member 93 is fixed to the surface of the radial protrusion 53 on the side opposite to the drive plate 30 in the axial direction L. The screwed member 93 is fixed concentrically with the insertion hole 54. The second fastening member 92 inserted into the outer insertion hole 33 of the drive plate 30 and the insertion hole 54 of the driven plate 50 is screwed into the screwed member 93. The screwed member 93 is, for example, a nut.

The phase matching facilitation mechanism of the present embodiment includes an axial protrusion 36 provided on the drive plate 30 and a radial protrusion 53 provided on the driven plate 50. The axial protrusion 36 and the radial protrusion 53 are formed so as to satisfy the following conditions in relation to the outer insertion hole 33 and the insertion hole 54. That is, it is based on the first circumferential length d1 (see FIG. 5) determined based on the positional relationship between the axial protrusion 36 and the outer insertion hole 33, and the positional relationship between the radial protrusion 53 and the insertion hole 54. The axial protrusion 36 and the radial protrusion 53 are formed so as to be equal to the second circumferential length d2 determined by the above. Here, the first circumferential length d1 is the circumferential direction C between the edge 36e on the first side in the circumferential direction of the axially protruding portion 36 and the center 33c of the outer insertion hole 33 on the first side in the circumferential direction. Is the length of. The second circumferential length d2 is the circumferential length C between the peripheral edge 53e of the radial second side of the radial protrusion 53 and the center 54c of the insertion hole 54 formed in the radial protrusion 53. The length.

With such a configuration, as shown in the lower part of FIG. 5, the axial protrusion 36 and the radial protrusion 53 are in contact with the circumferential direction C, and are inserted into the center 33c of the outer insertion hole 33. The center 54c of the hole 54 coincides with the center 54c in the axial direction L. The centers 33c of all the outer insertion holes 33 and the centers 54c of the corresponding insertion holes 54 coincide with each other in the axial direction L. That is, the drive plate 30 and the driven plate 50 can be in phase with each other simply by rotating the drive plate 30 and the driven plate 50 relative to each other and bringing the axial protrusion 36 and the radial protrusion 53 into contact with the circumferential direction C. It can be done easily. Then, the second fastening member 92 can be inserted along the axial direction L into the outer insertion hole 33 and the insertion hole 54 that are overlapped in the axial direction in the phase-matched drive plate 30 and the driven plate 50. .. Further, the second fastening member 92 can be screwed into the screwed member 93 concentrically fixed to the insertion hole 54 in the driven plate 50 to fasten and fix the drive plate 30 and the driven plate 50.

The method for manufacturing the drive device 100 described above includes a preparation step, an assembly step, a phase matching step, and a fastening step as steps related to the drive transmission device 1 (drive plate 30, driven plate 50).

In the preparation step, the drive plate 30 and the driven plate 50 are prepared. In this preparatory step, a drive plate 30 having an outer insertion hole 33 into which the second fastening member 92 is inserted and an axially projecting portion 36 projecting in the axial direction L is prepared. The drive plate 30 of the present embodiment is different from a normal drive plate in that it includes an axial protrusion 36. Further, as the driven plate 50, a plate having an insertion hole 54 into which the second fastening member 92 is inserted and a radial protrusion 53 protruding radially outward in a part of the circumferential direction C is prepared. .. The driven plate 50 of the present embodiment is different from a normal driven plate in that it includes a radial protrusion 53.

In the assembly process, the drive plate 30 and the driven plate 50 are assembled. In the present embodiment, the drive plate 30 and the driven plate 50 are arranged coaxially with the drive plate 30 fixed to the rotor shaft 25 and the driven plate 50 fixed to the torque converter cover 45, and these are arranged so as to face each other. do. Then, the drive plate 30 and the driven plate 50 are sufficiently close to each other so that the existing regions of the axial protrusions 36 and the radial protrusions 53 overlap each other in the axial direction L. Since the axial protrusion 36 is provided so as to overlap the area where the radial protrusion 53 exists in the radial direction, the axial protrusion 36 and the radial protrusion 53 are referred to in this assembling step. , The regions where the radial direction R and the axial direction L exist overlap.

In the assembling step, the drive plate 30 and the driven plate 50 may be brought into contact with each other in the axial direction L, or as long as the existing regions of the axially protruding portion 36 and the radially protruding portion 53 overlap in the axial direction L. They may be separated in the axial direction L. When abutting on the axial direction L, there is an advantage that the existing regions of the axial direction L of the axially protruding portion 36 and the radial direction protruding portion 53 can be surely overlapped. On the other hand, when the distance is increased in the axial direction L, there is an advantage that unnecessary sliding between the drive plate 30 and the driven plate 50 can be avoided in the subsequent phase matching step.

In the phase matching step, the phase matching between the drive plate 30 and the driven plate 50 is performed. In the present embodiment, the drive plate 30 and the driven plate 50 are relatively rotated in a state where the axial protrusion 36 and the radial protrusion 53 overlap the existing regions of the radial R and the axial L. At this time, the drive plate 30 is relatively rotated with respect to the driven plate 50 in the direction toward the first side in the circumferential direction. Then, the axial protrusion 36 and the radial protrusion 53 are brought into contact with each other in the circumferential direction C. Then, the length d1 in the first circumferential direction between the end edge 36e of the axial protrusion 36 and the center 33c of the outer insertion hole 33, and the end edge 53e of the radial protrusion 53 and the center 54c of the insertion hole 54 Since the length d2 in the second circumferential direction between them is equal, each set of the outer insertion hole 33 and the insertion hole 54 overlaps in the axial direction L. In this way, the drive plate 30 and the driven plate 50 can be in phase with each other simply by rotating the drive plate 30 and the driven plate 50 relative to each other and bringing the axial protrusion 36 and the radial protrusion 53 into contact with the circumferential direction C. It can be done easily. Therefore, even when the work is performed through the opening 2b of the peripheral wall portion 2A in the narrow case 2, the phase alignment can be appropriately performed.

In the fastening step, the drive plate 30 and the driven plate 50 are fastened and fixed in a phase-aligned state. In the present embodiment, the second fastening member 92 is introduced into the case 2 from the opening 2b of the peripheral wall portion 2A. Then, with the outer insertion hole 33 and the insertion hole 54 overlapping in the axial direction, the second fastening member 92 is inserted into the outer insertion hole 33 and the insertion hole 54, and further screwed into the screwed member 93. Then, the drive plate 30 and the driven plate 50 are fastened and fixed.

In the present embodiment, of the drive plate 30 and the driven plate 50, the driven plate 50, which is the one provided with the radial protrusion 53, corresponds to the "first rotating member". The insertion hole 54 formed in the driven plate 50 corresponds to the "first insertion hole". Further, the drive plate 30 which is the one provided with the axially protruding portion 36 on the other side of the drive plate 30 and the driven plate 50 corresponds to the "second rotating member". The outer insertion hole 33 formed in the drive plate 30 corresponds to the "second insertion hole".

[Second Embodiment]
A second embodiment of the drive transmission device 1 and the drive device 100 will be described with reference to the drawings. In the present embodiment, the specific structures of the drive plate 30 and the driven plate 50 constituting the drive transmission device 1 are different from those in the first embodiment described above. Hereinafter, the drive transmission device 1 of the present embodiment will be mainly described as being different from the first embodiment. It should be noted that the points not particularly specified are the same as those in the first embodiment, and the same reference numerals are given and detailed description thereof will be omitted.

As shown in FIGS. 6 and 7, the drive plate 30 of the present embodiment has an inner insertion hole 32, an outer insertion hole 33, and a radial protrusion 38. In the present embodiment, in comparison with the first embodiment, the notch hole 35 and the axial protrusion 36 are not formed, but the radial protrusion 38 is formed instead.

The radial protrusion 38 is provided so as to project outward in the radial direction in a part of the circumferential direction C of the drive plate 30. A plurality of radial protrusions 38 (in this example, three of half the number of outer insertion holes 33 formed in the drive plate 30) are provided, and these plurality of radial protrusions 38 are provided in the circumferential direction C. It is evenly distributed. In the present embodiment, the region where the radial protrusion 38 is provided between the two adjacent outer insertion holes 33 and the region where the radial protrusion 38 is not provided appear alternately in the circumferential direction C. It is formed like this. In the region between the two outer insertion holes 33 adjacent to each other in the circumferential direction C, the radial protrusions 38 are arranged unevenly toward one outer insertion hole 33. In the present embodiment, the outer insertion hole 33 on the first side in the circumferential direction is formed at a position closer to the radial protrusion 38 than the outer insertion hole 33 on the second side in the circumferential direction.

The drive plate 30 is formed in such a size that the radially outer end portion of the circular portion excluding the radial protrusion 38 is located radially inside the axial protrusion 56 of the driven plate 50. .. The radial protrusion 38 is formed in an arc strip shape having a constant radial width and circumferential width. The radialally protruding portion 38 is formed in such a size that the end portion on the radially outer side thereof is located on the radially outer side of the axially protruding portion 56 of the driven plate 50. Further, the radial protrusion 38 is formed so that its circumferential width is shorter than the distance between the two axial protrusions 56 adjacent to each other in the circumferential direction C in the driven plate 50.

As shown in FIGS. 6 and 8, the driven plate 50 of the present embodiment has a boss portion 51, a flange portion 52, a radial protrusion 53, an insertion hole 54, and an axial protrusion 56. ing. In the present embodiment, an axial protrusion 56 is additionally provided in comparison with the first embodiment.

In the present embodiment, the portion located further radially outside the radial protrusion 53 is bent in the axial direction L. The axial protrusion 56 is formed by a bent piece formed by bending the outer portion of the radial protrusion 53 constituting the driven plate 50 in the axial direction L. The axially protruding portion 56 (bent piece) is bent so as to protrude toward the drive plate 30 in the axial direction L. The axial protrusion 56 is provided so as to overlap the existing region of the drive plate 30 in the axial direction L when the drive plate 30 and the driven plate 50 are assembled. At that time, the axial protrusion 56 is provided so as to overlap the existing region of the radial protrusion 38 provided on the drive plate 30 in the radial direction R.

The phase matching facilitation mechanism of the present embodiment includes a radial protrusion 38 provided on the drive plate 30 and an axial protrusion 56 provided on the driven plate 50. The radial protrusion 38 and the axial protrusion 56 are formed so as to satisfy the following conditions in relation to the outer insertion hole 33 and the insertion hole 54. That is, it is based on the third circumferential length d3 (see FIG. 9) determined based on the positional relationship between the radial protrusion 38 and the outer insertion hole 33, and the positional relationship between the axial protrusion 56 and the insertion hole 54. The radial protrusion 38 and the axial protrusion 56 are formed so as to be equal to the fourth circumferential length d4 determined by the above. Here, the third circumferential length d3 is the circumferential direction C between the edge 38e on the first side in the circumferential direction of the radial protrusion 38 and the center 33c of the outer insertion hole 33 on the first side in the circumferential direction. Is the length of. The fourth circumferential length d4 is the center of the end edge 56e on the second side in the circumferential direction of the axial protrusion 56 and the insertion hole 54 formed in the radial protrusion 53 provided with the axial protrusion 56. It is the length of the circumferential direction C between 54c.

With such a configuration, as shown in the lower part of FIG. 9, the radial protrusion 38 and the axial protrusion 56 are inserted into the center 33c of the outer insertion hole 33 in a state of being in contact with the circumferential direction C. The center 54c of the hole 54 coincides with the center 54c in the axial direction L. The centers 33c of all the outer insertion holes 33 and the centers 54c of the corresponding insertion holes 54 coincide with each other in the axial direction L. That is, the drive plate 30 and the driven plate 50 can be aligned with each other simply by rotating the drive plate 30 and the driven plate 50 relative to each other and bringing the radial protrusion 38 and the axial protrusion 56 into contact with the circumferential direction C. It can be done easily.

In the present embodiment, of the drive plate 30 and the driven plate 50, the drive plate 30 provided with the radial protrusion 38 corresponds to the "first rotating member". The outer insertion hole 33 formed in the drive plate 30 corresponds to the "first insertion hole". Further, the driven plate 50, which is the one provided with the axially protruding portion 56 on the other side of the drive plate 30 and the driven plate 50, corresponds to the "second rotating member". The insertion hole 54 formed in the driven plate 50 corresponds to the "second insertion hole".

[Third Embodiment]
A third embodiment of the drive transmission device 1 and the drive device 100 will be described with reference to the drawings. In the present embodiment, the specific structures of the drive plate 30 and the driven plate 50 constituting the drive transmission device 1 are different from those in the second embodiment described above. Hereinafter, the difference between the drive transmission device 1 of the present embodiment and the second embodiment will be mainly described. It should be noted that the points not particularly specified are the same as those in the second embodiment, and the same reference numerals are given and detailed description thereof will be omitted.

As shown in FIG. 10, the drive plate 30 of the present embodiment has an inner insertion hole 32, an outer insertion hole 33, and a radial protrusion 38. In the present embodiment, in comparison with the first embodiment, the basic structure of the drive plate 30 is the same, but only the relative positional relationship between the radial protrusion 38 and the outer insertion hole 33 is slightly different.

As shown in FIG. 11, the driven plate 50 of the present embodiment includes a boss portion 51, a flange portion 52, and a radial protrusion 53 (referred to as a “first radial protrusion 53” in the present embodiment). It has an insertion hole 54, a second radial protrusion 58, and an axial protrusion 59. In the present embodiment, in comparison with the second embodiment, the second radial protrusion 58 is additionally provided, and the shaft is provided on the second radial protrusion 58 instead of the first radial protrusion 53. A directional protrusion 59 is provided.

The second radial projecting portion 58 is provided so as to project radially outward in a region in the circumferential direction C different from that of the first radial projecting portion 53. A plurality of second radial protrusions 58 (three, which is half of the number of first radial protrusions 53 in this example) are provided, and these plurality of second radial protrusions 58 are provided in the circumferential direction C. It is evenly distributed. In the present embodiment, the region where the second radial protrusion 58 is provided between the two adjacent first radial protrusions 53 and the region where the second radial protrusion 58 is not provided are It is formed so as to appear alternately in the circumferential direction C. The second radial protrusion 58 is formed in an arc strip shape having a constant radial width and circumferential width. The second radial protrusion 58 of the present embodiment is formed so as to have the same radial width and circumferential width.

In the present embodiment, the portion located further radially outside the second radial protrusion 58 is bent in the axial direction L. The axial protrusion 59 is formed by a bent piece formed by bending the outer portion of the second radial protrusion 58 constituting the driven plate 50 in the axial direction L. The axially protruding portion 59 (bent piece) is bent so as to protrude toward the drive plate 30 in the axial direction L. The axial protrusion 59 is provided so as to overlap the existing region of the drive plate 30 in the axial direction L when the drive plate 30 and the driven plate 50 are assembled. At that time, the axial protrusion 59 is provided so as to overlap the existing region of the radial protrusion 38 provided on the drive plate 30 in the radial direction R.

The phase matching facilitation mechanism of the present embodiment includes a radial protrusion 38 provided on the drive plate 30 and an axial protrusion 59 provided on the driven plate 50. The radial protrusion 38 and the axial protrusion 59 are formed so as to satisfy the following conditions in relation to the outer insertion hole 33 and the insertion hole 54. That is, it is based on the third circumferential length d3 (see FIG. 12) determined based on the positional relationship between the radial protrusion 38 and the outer insertion hole 33, and the positional relationship between the axial protrusion 59 and the insertion hole 54. The radial protrusion 38 and the axial protrusion 59 are formed so as to be equal to the fifth circumferential length d5 determined by the above. Here, the length d3 in the third circumferential direction is defined in the same manner as in the second embodiment. The fifth circumferential length d5 is the center 54c of the insertion hole 54 formed in the circumferential second side edge 59e of the axially protruding portion 59 and the first radial protruding portion 53 on the circumferential first side thereof. It is the length of the circumferential direction C between and.

With such a configuration, as shown in the lower part of FIG. 12, the radial protrusion 38 and the axial protrusion 59 are inserted into the center 33c of the outer insertion hole 33 in a state of being in contact with the circumferential direction C. The center 54c of the hole 54 coincides with the center 54c in the axial direction L. The centers 33c of all the outer insertion holes 33 and the centers 54c of the corresponding insertion holes 54 coincide with each other in the axial direction L. That is, the drive plate 30 and the driven plate 50 can be aligned with each other simply by rotating the drive plate 30 and the driven plate 50 relative to each other and bringing the radial protrusion 38 and the axial protrusion 59 into contact with the circumferential direction C. It can be done easily.

In the present embodiment, of the drive plate 30 and the driven plate 50, the drive plate 30 provided with the radial protrusion 38 corresponds to the "first rotating member". The outer insertion hole 33 formed in the drive plate 30 corresponds to the "first insertion hole". Further, the driven plate 50, which is the one provided with the axially protruding portion 59 on the other side of the drive plate 30 and the driven plate 50, corresponds to the "second rotating member". The insertion hole 54 formed in the driven plate 50 corresponds to the "second insertion hole".

[Other embodiments]
(1) In each of the above embodiments, an example in which the axial protrusions 36, 56, 59 are composed of a bent piece integrated with the drive plate 30 or the driven plate 50 has been described. However, the present invention is not limited to such a configuration, and for example, the axial protrusions 36, 56, 59 are provided by being formed of a member separate from the drive plate 30 and the driven plate 50 and fixed to them. Is also good.

(2) In each of the above embodiments, the configuration in which the axially protruding portions 36, 56, 59 extend straight along the axial direction L has been described as an example. However, without being limited to such a configuration, for example, the axial protrusions 36, 56, 59 may be formed so as to extend diagonally along the axial direction L and the radial direction R.

(3) In each of the above embodiments, a configuration in which a screwed member 93 separate from the radial protrusion 53 is fixed to the radial protrusion 53 has been described as an example. However, the screwed portion (for example, a burring tap or the like) may be integrally formed on the radial projecting portion 53 without being limited to such a configuration.

(4) In each of the above embodiments, in the phase matching between the drive plate 30 and the driven plate 50, a configuration in which they are relatively rotated only in a specific one direction has been described as an example. However, the configuration is not limited to such a configuration, and the drive plate 30 and the driven plate 50 may be configured to be phase-aligned regardless of the direction of relative rotation. In this case, for example, in the first embodiment, the circumferential length from the peripheral edge 36e of the axially protruding portion 36 on the first side in the circumferential direction to the center 33c of the outer insertion hole 33 on the first side in the circumferential direction, and the axial direction. Insertion from the circumferential length from the peripheral edge 36e of the protruding portion 36 to the center 33c of the outer insertion hole 33 on the circumferential second side and the peripheral edge 53e of the radial protruding portion 53 in the circumferential direction C. It may be configured so that the length in the circumferential direction up to the center 54c of the hole 54 is equal. In this case, roughly, two sets of outer insertion holes 33 having the same number and pitch as the insertion holes 54 are formed on the drive plate 30, and the axial protrusions 36 are adjacent to each other in the circumferential direction C and are different sets. It is provided at the center position of the two outer insertion holes 33 belonging to. The second embodiment and the third embodiment can be considered in accordance with this.

(5) In each of the above embodiments, the drive transmission device 1 provided in the drive device 100 for the hybrid vehicle has been described as an example. However, without being limited to such a configuration, the present technology can also be applied to a drive device 100 for an engine vehicle provided with only an internal combustion engine EG as a drive force source for the wheels W. Alternatively, the present technology can also be applied to a drive transmission device 1 provided in a drive device 100 for an electric vehicle provided with only a rotary electric machine 20 as a drive force source for the wheels W.

(6) The configurations disclosed in each of the above-described embodiments (including the above-described embodiment and other embodiments; the same shall apply hereinafter) are applied in combination with the configurations disclosed in other embodiments as long as there is no contradiction. It is also possible to do. As for other configurations, the embodiments disclosed in the present specification are exemplary in all respects, and can be appropriately modified without departing from the spirit of the present disclosure.

[Outline of Embodiment]
Summarizing the above, the drive transmission device according to the present disclosure preferably has the following configurations.

It is provided between the driving force source (EG, 20) of the wheel (W) and the transmission (65), and is provided between the rotating member (30) on the driving force source (EG, 20) side and the transmission (65) side. A drive transmission device (1) in which the rotating member (50) of the above is fastened and fixed in the axial direction (L).
A fastening member (30/50) is attached to the first rotating member (30/50), which is one of the rotating member (30) on the driving force source (EG, 20) side and the rotating member (50) on the transmission (65) side. A first insertion hole (33/54) into which 92) is inserted is formed.
The fastening member is attached to the second rotating member (50/30), which is the other of the rotating member (30) on the driving force source (EG, 20) side and the rotating member (50) on the transmission (65) side. A second insertion hole (54/33) into which (92) is inserted is formed.
The first rotating member (30/50) is provided with a radial projecting portion (38/53) that projects radially outward in a part of the circumferential direction (C).
The said in the axial direction (L) so as to overlap the existing region of the radial protrusion (38/53) in the radial direction (R) and the axial direction (L) on the second rotating member (50/30). An axial protrusion (56, 59/36) that protrudes toward the first rotating member (30/50) is provided.
The first insertion hole (33/54) and the first insertion hole (33/54) in a state where the radial protrusion (38/53) and the axial protrusion (56, 59/36) are in contact with each other in the circumferential direction (C). The two insertion holes (54/33) overlap with each other in the axial direction.

According to this configuration, the first rotating member (30/50) is formed by bringing the radial protrusion (38/53) and the axial protrusion (56, 59/36) into contact with each other in the circumferential direction (C). And the second rotating member (50/30) can be phase-aligned, and the fastening work can be performed using the fastening member (92) in that state. At the time of phase matching, the first rotating member (30/50) and the first rotating member (30/50) overlap the axially protruding portion (56, 59/36) with the region where the radial protruding portion (38/53) exists in the axial direction (L). After bringing the second rotating member (50/30) closer to the axial direction (L), the radial projecting portion (38/53) and the axial projecting portion (56, 59/36) are placed in the circumferential direction (56, 59/36). It suffices to rotate relative to each other until it comes into contact with C). Therefore, the fastening work can be easily performed. Further, since it is not necessary to rotate the first rotating member (30/50) and the second rotating member (50/30) relative to each other while pressing them in the axial direction (L), the first rotating member (30/50) does not need to be rotated relative to each other during the fastening work including phase matching. It is possible to avoid scratching at least one of the one-rotating member (30/50) and the second rotating member (50/30).

As one aspect
The first insertion hole (33/54) is formed in the radial protrusion (38/53), and the screwed member (93) into which the fastening member (92) is screwed is the first. It is preferably fixed concentrically with the insertion hole (33/54).

According to this configuration, the first insertion hole (33/54) is appropriately formed by utilizing the predetermined radial (R) width of the radial protrusion (38/53), and further, the first insertion hole is further formed. The screwed member (93) can be fixed concentrically with (33/54). Therefore, it is possible to prevent the first rotating member (30/50) from becoming large in the radial direction (R) while providing the radial projecting portion (38/53). Further, in this configuration, the axial protrusion (56, 59/36) is also provided in the radial (R) existing region of the radial protrusion (38/53), so that the second rotating member (50/30) Is similarly suppressed from increasing in the radial direction (R). Therefore, it is possible to suppress the increase in size of the drive transmission device (1).

As one aspect
The portion of the second rotating member (50/30) that overlaps with the radial (R) existing region of the radial protrusion (38/53) in the axial direction is composed of an annular plate-shaped member.
It is preferable that the axially protruding portion (56, 59/36) is composed of a bent piece formed by bending a part of the annular plate-shaped member in the axial direction (L).

According to this configuration, the axial protrusion (56, 59/36) can be provided with a simple configuration in which a part of the annular plate-shaped member is bent in the axial direction (L). Since a part of the original annular plate-shaped member is used instead of adding another member, each of the above effects can be obtained while avoiding an increase in weight and cost.

As one aspect
The first insertion hole (33/54) is formed at the center position of the radial protrusion (38/53) in the circumferential direction (C), and the axial protrusion (56, 59/36) is formed. On the other hand, the pair of second insertion holes (54/33) are divided into a circumferential first side, which is one side of the circumferential direction (C), and a circumferential second side, which is the other side of the circumferential direction (C). Formed,
The center (54c) of the second insertion hole (54/33) on the first side in the circumferential direction from the edge (56e, 59e / 36e) on the first side in the circumferential direction of the axial protrusion (56, 59/36). / 33c) and the second insertion on the second side in the circumferential direction from the edge (56e, 59e / 36e) on the second side in the circumferential direction of the axial protrusion (56, 59/36). The first insertion hole from the circumferential length to the center (54c / 33c) of the hole (54/33) and the peripheral edge (38e / 53e) of the radial protrusion (38/53) in the circumferential direction (C). It is preferable that the circumferential length to the center (33c / 54c) of (33/54) is equal.

According to this configuration, regardless of the direction of relative rotation, the contact between the radial protrusion (38/53) and the axial protrusion (56, 59/36) in the circumferential direction (C) causes the first. Phase matching between the rotating member (30/50) and the second rotating member (50/30) can be performed. Therefore, the fastening work can be performed more easily.

Further, the drive device according to the present disclosure preferably has the following configurations.

It is a drive device (100),
The drive transmission device (1) of each configuration described above and
A case (2) for accommodating the drive transmission device (1) is provided.
The case (2) has a peripheral wall portion (2A) that surrounds the radial outer side of the first rotating member (30/50) and the second rotating member (50/30).
An opening for operating the fastening member (92) at a position overlapping the first rotating member (30/50) and the second rotating member (50/30) in the peripheral wall portion (2A) in a radial direction. The portion (2b) is formed.

As in this configuration, the fastening member (92) is introduced into the case (2) through the opening (2b) formed in the peripheral wall portion (2A) of the case (2), and fastened in the narrow case (2). When performing work, it is often difficult to align the phase between the first rotating member (30/50) and the second rotating member (50/30). Even in such a configuration, by applying this technique, it is possible to easily perform the fastening work in the narrow case (2).

Further, the method for manufacturing a drive device according to the present disclosure preferably has the following configurations.

It is provided between the driving force source (EG, 20) of the wheel (W) and the transmission (65), and is provided between the rotating member (30) on the driving force source (EG, 20) side and the transmission (65) side. A method for manufacturing a drive device (100) including a drive transmission device (1) in which the rotating member (50) of the above is fastened and fixed in the axial direction (L).
One of the rotating member (30) on the driving force source (EG, 20) side and the rotating member (50) on the transmission (65) side is the first rotating member (30/50), and the other is the second rotation. As a member (50/30)
It is provided with a first insertion hole (33/54) into which the fastening member (92) is inserted, and a radial protrusion (38/53) that protrudes radially outward in a part of the circumferential direction (C). The process of preparing the first rotating member (30/50) and
A second rotating member (50) having a second insertion hole (54/33) into which the fastening member (92) is inserted and an axially projecting portion (56, 59/36) projecting in the axial direction (L). The process of preparing / 30) and
The first rotating member (30/50) and the second rotating member (50/30) are arranged coaxially, and the radial protrusion (38/53) and the axial protrusion (56,59) are arranged. / 36) and the step of overlapping the existing regions in the radial direction (R) and the axial direction (L),
The first rotating member (30/50) and the second rotating member (50/30) are relatively rotated to form the radial protrusion (38/53) and the axial protrusion (56, 59/36). And the process of bringing and to contact in the circumferential direction (C),
With the first insertion hole (33/54) and the second insertion hole (54/33) overlapping in the axial direction, the fastening member (92) is attached to the first insertion hole (33/54) and the said. A step of inserting into the second insertion hole (54/33) and fastening and fixing the first rotating member (30/50) and the second rotating member (50/30).
To prepare for.

According to this configuration, the first rotating member (30/50) is formed by bringing the radial protrusion (38/53) and the axial protrusion (56, 59/36) into contact with each other in the circumferential direction (C). And the second rotating member (50/30) can be phase-aligned, and the fastening work can be performed using the fastening member (92) in that state. At the time of phase matching, the first rotating member (30/50) and the first rotating member (30/50) overlap the axially protruding portion (56, 59/36) with the region where the radial protruding portion (38/53) exists in the axial direction (L). After bringing the second rotating member (50/30) closer to the axial direction (L), the radial projecting portion (38/53) and the axial projecting portion (56, 59/36) are placed in the circumferential direction (56, 59/36). It suffices to rotate relative to each other until it comes into contact with C). Therefore, the fastening work can be easily performed. Further, since it is not necessary to rotate the first rotating member (30/50) and the second rotating member (50/30) relative to each other while pressing them in the axial direction (L), the first rotating member (30/50) does not need to be rotated relative to each other during the fastening work including phase matching. It is possible to avoid scratching at least one of the one-rotating member (30/50) and the second rotating member (50/30).

The drive transmission device, the drive device, and the method for manufacturing the drive device according to the present disclosure may be capable of achieving at least one of the above-mentioned effects.

1 Drive transmission device 2 Case 2A Peripheral wall 2b Opening 20 Rotating electric machine (driving force source)
30 Drive plate (rotating member on the driving force source side, first rotating member, second rotating member)
33 Outer insertion hole (first insertion hole, second insertion hole)
33c Center 36 Axial protrusion 36e Edge 38 Radial protrusion 38e Edge 50 Driven plate (rotating member on the transmission side, first rotating member, second rotating member)
53 Radial protrusion 53e Edge edge 54 Insertion hole (first insertion hole, second insertion hole)
54c Center 56 Axial protrusion 56e Edge edge 59 Axial protrusion 59e Edge 92 Second fastening member (fastening member)
93 Screwed member 100 Drive device EG Internal combustion engine (driving force source)
W Wheel L Axial direction R Radial direction C Circumferential direction

Claims (4)

A drive transmission device provided between a wheel drive force source and a transmission, in which a rotary member on the drive force source side and a rotary member on the transmission side are fastened and fixed in the axial direction.
A first insertion hole into which the fastening member is inserted is formed in the first rotating member, which is one of the rotating member on the driving force source side and the rotating member on the transmission side.
A second insertion hole into which the fastening member is inserted is formed in the second rotating member, which is the other of the rotating member on the driving force source side and the rotating member on the transmission side.
The first rotating member is provided with a radial projecting portion that projects radially outward in a part of the circumferential direction.
The second rotating member is provided with an axially projecting portion that protrudes toward the first rotating member in the axial direction so as to overlap the existing region of the radialally projecting portion in the radial and axial directions.
In a state where the radial protrusion and the axial protrusion are in contact with each other in the circumferential direction, the first insertion hole and the second insertion hole overlap each other in the axial direction.
A drive transmission device in which the first insertion hole is formed in the radial protrusion and the screwed member to which the fastening member is screwed is fixed concentrically with the first insertion hole . A drive transmission device provided between a wheel drive force source and a transmission, in which a rotary member on the drive force source side and a rotary member on the transmission side are fastened and fixed in the axial direction.
A first insertion hole into which the fastening member is inserted is formed in the first rotating member, which is one of the rotating member on the driving force source side and the rotating member on the transmission side.
A second insertion hole into which the fastening member is inserted is formed in the second rotating member, which is the other of the rotating member on the driving force source side and the rotating member on the transmission side.
The first rotating member is provided with a radial projecting portion that projects radially outward in a part of the circumferential direction.
The second rotating member is provided with an axially projecting portion that protrudes toward the first rotating member in the axial direction so as to overlap the existing region of the radialally projecting portion in the radial and axial directions.
In a state where the radial protrusion and the axial protrusion are in contact with each other in the circumferential direction, the first insertion hole and the second insertion hole overlap each other in the axial direction.
The portion of the second rotating member that overlaps the radial existence region of the radial protrusion in the axial direction is composed of an annular plate-shaped member.
A drive transmission device in which the axially protruding portion is composed of a bent piece formed by bending a part of the annular plate-shaped member in the axial direction . A drive transmission device provided between a wheel drive force source and a transmission, in which a rotary member on the drive force source side and a rotary member on the transmission side are fastened and fixed in the axial direction.
A first insertion hole into which the fastening member is inserted is formed in the first rotating member, which is one of the rotating member on the driving force source side and the rotating member on the transmission side.
A second insertion hole into which the fastening member is inserted is formed in the second rotating member, which is the other of the rotating member on the driving force source side and the rotating member on the transmission side.
The first rotating member is provided with a radial projecting portion that projects radially outward in a part of the circumferential direction.
The second rotating member is provided with an axially projecting portion that protrudes toward the first rotating member in the axial direction so as to overlap the existing region of the radialally projecting portion in the radial and axial directions.
In a state where the radial protrusion and the axial protrusion are in contact with each other in the circumferential direction, the first insertion hole and the second insertion hole overlap each other in the axial direction.
The first insertion hole is formed at the center position in the circumferential direction of the radial protrusion, and the first side in the circumferential direction and the other side in the circumferential direction, which are one side in the circumferential direction with respect to the axial protrusion. A pair of the second insertion holes are formed separately from the second side in the circumferential direction.
The circumferential length from the circumferential first end edge of the axial protrusion to the center of the second insertion hole on the circumferential first side, and the circumferential second end edge of the axial protrusion. The circumferential length from to the center of the second insertion hole on the second side in the circumferential direction is equal to the circumferential length from the circumferential edge of the radial protrusion to the center of the first insertion hole. Drive transmission device. The drive transmission device according to any one of claims 1 to 3 .
A case for accommodating the drive transmission device, and
The case has a peripheral wall portion that surrounds the first rotating member and the radially outer side of the second rotating member.
A drive device in which an opening for operating the fastening member is formed at a position on the peripheral wall portion that overlaps with the first rotating member and the second rotating member in a radial direction.

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