Reducer case

Abstract

To suppress retention of water on a case.SOLUTION: A reducer case includes a connection part surrounding an insertion hole into which at least an electric product is inserted at the outer peripheral surface thereof and is provided with a pattern that exerts water-repellent effect around the connection part. A first recess extending in a direction of being separated from the connection part including a through-hole is provided in a region provided with the pattern that exerts water-repellent effect at the outer peripheral surface of the reducer case. The first recess is inclined in a direction in which the depth thereof is deepened as being separated from the connection part.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a reducer case. [Background technology]

[0002] Electrical components such as a transmission controller are sometimes located above a case that houses the transmission mechanism, and are electrically connected to the transmission mechanism via a connector provided on the top surface of the case (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-147046 Summary of the Invention [Problem to be solved by the invention]

[0004] Rainwater and other water may accumulate on the top surface of the case. Rainwater contains impurities such as salt, so when the accumulated rainwater dries, the salt and other impurities are precipitated. For example, if salt deposits occur around the connection portions of the case, the salt will corrode the connection portions, which may result in malfunction of the electrical components. Therefore, there is a need to prevent water adhering to the case from accumulating on the case. [Means for solving the problem]

[0005] One aspect of the present invention is The connector has a connection portion on its outer circumferential surface that surrounds an insertion hole into which at least the electrical component is inserted, A reducer case having a pattern that exhibits a water-repellent effect around the connection portion, a first recess extending in a direction away from the connection portion having the insertion hole is provided in the region of the outer peripheral surface of the reducer case where the pattern exhibiting the water-repellent effect is provided; The first recess is inclined so that the depth increases with increasing distance from the connection portion. And, When viewed from the extending direction of the first recess, the first recess is a depression having an arc-shaped cross section. It is a reducer case. [Effects of the Invention]

[0006] According to one aspect of the present invention, it is possible to prevent water from accumulating on the case. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a schematic configuration diagram of a power transmission device. [Figure 2] FIG. 10 is a perspective view of a fourth case. [Figure 3] FIG. 10 is a perspective view of a fourth case. [Figure 4] FIG. 10 is a plan view of the area around the connection portion of the fourth case as viewed from above. [Figure 5] FIG. 10 is a cross-sectional view of a main part of a fourth case. [Figure 6] FIG. 10 is a cross-sectional view of a main part of a fourth case. [Figure 7] FIG. 10 is a cross-sectional view of a main part of a fourth case. [Figure 8] FIG. 10 is a cross-sectional view of a main part of a fourth case. [Figure 9] 10A and 10B are diagrams illustrating the state of water droplets in an area where a pattern exhibiting a water-repellent effect is provided. [Figure 10] 10A and 10B are diagrams illustrating the state of water droplets in an area where a pattern exhibiting a water-repellent effect is not provided. DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, an embodiment of the present invention will be described using as an example the case of a reducer case (fourth case 14) of a power transmission device 1 mounted on a vehicle. Fig. 1 is a schematic diagram of a power transmission device 1. In Fig. 1, each component of the power transmission device 1 is shown in a schematic manner. 2 is a perspective view of the fourth case 14 as seen obliquely from above. In FIG. 2, the actuator ACT and the plate member 8 are shown separated from the fourth case 14.

[0009] As shown in Figure 1, the main body case 10 of the power transmission device 1 is composed of a first case 11 that houses the motor 2, a second case 12 that is extrapolated to the first case 11, a third case 13 that is assembled to the first case 11, and a fourth case 14 that is assembled to the second case 12. The motor 2 has a rotor core 21 and a stator core 22, and the output rotation of the motor 2 is output from a motor shaft 20 that rotates integrally with the rotor core 21.

[0010] In the power transmission device 1, a parking mechanism 3, a planetary reduction gear 4 (reduction mechanism), a differential mechanism 5, and drive shafts 6A and 6B are provided along a transmission path of the output rotation of the motor 2. The planetary reduction gear 4 reduces the output rotation of the motor 2 and inputs it to the differential mechanism 5 . The differential mechanism 5 transmits the rotation input from the planetary reduction gear 4 to the drive shafts 6A and 6B. As a result, the output rotation of the motor 2 is ultimately transmitted to the left and right drive wheels 9, 9 of the vehicle equipped with the power transmission device 1, causing the vehicle to move.

[0011] The parking mechanism 3 has a park gear 31 and a park pole 32 . The park gear 31 is fitted onto and fixed to the motor shaft 20. The park gear 31 rotates integrally with the motor shaft 20.

[0012] The park pole 32 is rotatably supported by a support shaft 71 provided on the plate 7 . The park pole 32 has an engaging portion 32a at a position radially outward of the swing axis Xa. The engaging portion 32a engages with and disengages from the outer periphery of the park gear 31 in conjunction with the swing of the park pole 32.

[0013] When the engaging portion 32a engages with the outer periphery of the park gear 31, the rotation of the motor shaft 20 is restricted, and the vehicle equipped with the power transmission device 1 enters a state in which driving is restricted (driving restricted state). When the engaging portion 32a disengages from the outer periphery of the park gear 31, the rotation of the motor shaft 20 is permitted, and the vehicle equipped with the power transmission device 1 enters a state in which it is possible to travel (a drivable state).

[0014] The power transmission device 1 has an actuator ACT (electrical component) for driving the parking mechanism 3. The actuator ACT rotates the manual shaft SH about the axis Y based on a command from a control device (not shown). When the manual shaft SH rotates about the axis Y, the park pole 32 swings about the swing axis Xa in conjunction with the rotation of the manual shaft SH. As a result, the engaging portion 32a of the park pole 32 engages with and disengages from the outer periphery of the park gear 31, and the vehicle is switched between a restricted state and a permitted state.

[0015] The mechanism for swinging the park pole 32 in conjunction with the rotation of the manual shaft SH is a conventionally known mechanism, and therefore a description thereof will be omitted here. As an example, this type of mechanism includes a manual plate (not shown) that rotates integrally with the manual shaft SH, a park rod (not shown) that moves back and forth in conjunction with the rotation of the manual plate, and a cam (not shown) that swings the park pole in conjunction with the movement of the park rod.

[0016] The actuator ACT is located outside the fourth case 14. The fourth case 14 has a peripheral wall portion 141 that surrounds the outer periphery of the planetary reduction gear 4 (reduction mechanism). A through hole 15 is provided in the peripheral wall 141 in an upper region based on the installation state of the power transmission device 1 on the vehicle. The through hole 15 penetrates the peripheral wall 141 in the thickness direction. A boss-shaped connecting portion 16 surrounding the through hole 15 is provided on the outer periphery of the peripheral wall 141. In the through-hole 15, a manual shaft SH extending from the actuator ACT penetrates the peripheral wall portion 141 from the outside to the inside.

[0017] As shown in FIG. 2, bolt boss portions 17 and 18 are provided on one side (left side in the drawing) and the other side (right side in the drawing) of the peripheral wall portion 141 with the connecting portion 16 sandwiched therebetween. The bolt boss portions 17, 18 extend upward from the peripheral wall portion 141, and the plate member 8 that supports the actuator ACT is placed on the upper ends of the bolt boss portions 17, 18. The actuator ACT is fixed to the outer periphery of the fourth case 14 by threading bolts B, B that pass through the plate member 8 into bolt boss portions 17, 18.

[0018] 1, when the actuator ACT is fixed to the outer periphery of the fourth case 14, the main body of the actuator ACT is joined to the upper end of the connecting part 16. In this state, the gap between the mating surfaces of the main body and the connecting part 16 is sealed with a seal ring.

[0019] A flange-shaped joint 142 is provided at one end of the peripheral wall 141 on the second case 12 side (left side in the drawing), and a wall 143 is provided at the other end. The joint portion 142 surrounds the entire opening of the peripheral wall portion 141 on the second case 12 side, and extends radially outward from the outer periphery of the peripheral wall portion 141. The joint 142 of the fourth case 14 is connected to the joint 122 of the second case 12 with a bolt (not shown).

[0020] The wall portion 143 extends radially inward from the other end of the peripheral wall portion 141. An insertion hole 143a for the drive shaft 6B opens on the radially inward side of the wall portion 143. A cylindrical support wall portion 144 surrounding the insertion hole 143a is provided on the outer periphery of the wall portion 143. The drive shaft 6B is rotatably supported by the support wall portion 144 via a bearing Ba.

[0021] Inside the peripheral wall portion 141, a support wall portion 144 is provided on the inner diameter side of the through hole 15 described above. The support wall portion 144 is provided with a space Sa between it and the inner periphery of the peripheral wall portion 141. The support wall portion 144 has a support hole 144a opening in an upper surface thereof facing the peripheral wall portion 141. The tip of the manual shaft SH that passes through the through-hole 15 is inserted into the support hole 144a and is rotatably supported.

[0022] The base end side of the manual shaft SH protrudes from a connecting portion 16 on the outer periphery of the fourth case 14 to the outside of the fourth case 14. An actuator ACT is connected to the protruding region of the manual shaft SH.

[0023] Fig. 3 is a perspective view of the fourth case 14, seen obliquely from above. In Fig. 3, the movement path of a water droplet W adhering to the surface of the peripheral wall portion 141 is indicated by an arrow. Fig. 4 is a plan view of the fourth case 14 as seen from above, showing an enlarged view of the area around the connection portion 16. In Fig. 4, the area R1 provided with the pattern that exhibits a water-repellent effect is shown with cross hatching. FIG. 5 is a cross-sectional view of the fourth case 14 taken along the line AA in FIG. FIG. 6 is a cross-sectional view of the fourth case 14 taken along line BB in FIG. FIG. 7 is a cross-sectional view of the fourth case 14 taken along line CC in FIG. FIG. 8 is a cross-sectional view of the fourth case 14 taken along line DD in FIG.

[0024] As shown in FIG. 3, in the fourth case 14, the connection portion 16 protrudes from a surface 141a, which is the outer peripheral surface of the peripheral wall portion 141. Specifically, the connecting portion 16 of the peripheral wall portion 141 protrudes upward from a surface 141a of an area located on the upper side with respect to the state in which the power transmission device 1 is installed on the vehicle.

[0025] As shown in FIG. 4, in a plan view of the fourth case 14 seen from above, the peripheral wall 141 is provided with a rib 146 on the joining portion 142 side (left side in the figure) when viewed from the connecting portion 16. 5, the rib 146 is a portion surrounding a bolt hole 145 that opens in an end surface 142a of the joint portion 142. The rib 146 bulges upward from the surface 141a of the fourth case .

[0026] 4 and 5, the rib 146 extends along a straight line Xc from the end surface 142a of the joint portion 142 to the vicinity of the connection portion 16. Here, the straight line Xc is a straight line parallel to the rotation axis X and along the joining direction of the fourth case 14 and the second case 12. A recess 147 is formed between the rib 146 and the connection portion 16 in the direction of the straight line Xc.

[0027] 6, in a cross-sectional view, the recess 147 has an arc-shaped cross section with an apex P facing the inner diameter side. The region where the recess 147 and the surface 141a of the peripheral wall portion 141 are connected has an arc-shaped cross section with an apex facing the outer diameter side. Therefore, in a cross-sectional view, the surface 141a of the peripheral wall portion 141 and the recessed portion 147 are continuous with no step.

[0028] 4 and 5, a recess 148 is formed in the peripheral wall 141 on the opposite side (the right side in the drawings) from the rib 146 when viewed from the connecting portion 16. The recess 148 extends along the straight line Xc to the wall 143 of the fourth case 14. 8, in a cross-sectional view, recess 148 has an arc-shaped cross section with apex P facing the inner diameter side. The region where recess 147 and surface 141a of peripheral wall portion 141 are connected has an arc-shaped cross section with apex facing the outer diameter side. Therefore, in a cross-sectional view, the surface 141a of the peripheral wall portion 141 and the recessed portion 148 are continuous with no step.

[0029] As shown in Fig. 7, arc-shaped recesses 149, 149 are formed on both sides of connecting portion 16 along the outer periphery of connecting portion 16. In a cross-sectional view, recess 149 has an arc-shaped cross section with apex P facing the inner diameter side. As shown in Fig. 4, as viewed from connecting portion 16, recess 147 located on one side and recess 148 located on the other side are connected to each other via arc-shaped recess 149.

[0030] 5, the surface of the recess 148 is slightly inclined with respect to the horizontal line HL. In cross-sectional view, the recess 148 is inclined so that the wall portion 143 side (the right side in the figure) is slightly lower than the connection portion 16 side (the left side in the figure). The recess 147 is located on the outer diameter side of the imaginary line Lm that passes through the deepest position of the recess 148, and the recess 147 is shallower than the recess 147 from the surface 141a.

[0031] In the power transmission device 1, the surface of the main body case 10 has undulations due to ribs, bosses, etc. When water such as rainwater acts on the main body case 10, there is a possibility that moisture will remain locally on the surface of the main body case 10 due to the undulations. When the moisture remaining on the surface of main body case 10 evaporates, salt contained in the moisture accumulates, and the accumulated salt may cause corrosion. For example, mounting bosses, which are the connection points for electrical components, are required to stably support the electrical components, so it is undesirable for moisture to remain around the mounting boss and for salt to accumulate (salting out).

[0032] Therefore, in the case 10 according to this embodiment, a pattern that exhibits a water-repellent effect is applied to the surface of the case 10, at least to the surface of the area where moisture should not remain.

[0033] As an example, the fourth case 14 is provided with a connection portion 16 as a boss for mounting the actuator ACT. In this fourth case 14, the surface of the area around the connecting portion 16 is provided with a pattern that exhibits a water-repellent effect.

[0034] 4, a pattern that exhibits a water-repellent effect is applied to region R1, which is indicated by intersecting hatching around connection portion 16. Connection portion 16 is located approximately in the center of region R1. Region R1 is set to span from one side to the other of line Xc, and the recesses 147 and 148 are located approximately in the center in the direction perpendicular to line Xc.

[0035] FIG. 9 is a cross-sectional view of the area A in FIG. 3, illustrating the state of the water droplets W in the area where the pattern MK exhibiting the water-repellent effect is provided. FIG. 9 shows an enlarged schematic cross section of an area where a pattern MK exhibiting a water-repellent effect is provided. FIG. 10 is a diagram illustrating the state of water droplets W in an area where the pattern MK that exerts the water-repellent effect is not provided.

[0036] As shown in FIG. 9, in this embodiment, a so-called matte pattern (a matte-like pattern) is adopted as the pattern MK that exhibits a water-repellent effect. As an example, the matte pattern is formed by providing a plurality of recesses 141b in region R1 (see FIG. 4) on surface 141a of peripheral wall portion 141. Recesses and protrusions alternate continuously on surface 141a in region R1, forming an uneven shape in cross section (see FIG. 9).

[0037] The recess 141b may be formed when the fourth case 14 is cast, or may be formed by performing a surface treatment on the fourth case 14 after casting.

[0038] Here, the width ΔL of the recesses 141b is set to a width that prevents water droplets W adhering to the surface from penetrating into the recesses 141b, for example, 5 to 15 μm. The interval ΔT between adjacent recesses 141b is set to 20 to 30 μm, for example. This setting effectively prevents the adhering water droplets W from entering the recesses 141b, and a layer of air due to the recesses 141b is formed at the interface Wb between the water droplets W and the surface 141a. At the interface Wb of the water droplet W, a region in contact with the surface 141a and a region in contact with the air in the recess 141b are alternately repeated (Cassie-Baxter state).

[0039] In the Cassie-Baxter state, the angle φ between the interface Wb and the surface Wa of the water droplet W (the angle between the lines Lp and Lq; also referred to as the contact angle φ) is 90 degrees or more (see FIG. 9). When the contact angle φ is 90 degrees or more, the lotus effect is exerted, and the wettability of the water droplets W on the surface 141a decreases, that is, the water repellency of the surface 141a in the region R1 increases.

[0040] The pattern MK that exhibits the water-repellent effect is not limited to a matte pattern, and may be any pattern that allows the water droplets W to enter the Cassie-Baxter state. The pattern may be one in which recesses are randomly arranged at intervals that allow the Cassie-Baxter state to be realized. Also, instead of the matte pattern, a hairline pattern may be used.

[0041] The function of the fourth case 14 having the area R1 on the surface where the pattern MK that exerts a water-repellent effect is provided will be described. When moisture adheres to the surface of the main body case 10 of the power transmission device 1, in the area R1 where the pattern MK that exhibits a water-repellent effect is provided in the fourth case 14, multiple water droplets W are formed on the surface because the surface 141a is highly water-repellent. When the vehicle is traveling, a wind flow due to the traveling is formed along the surface of the main body case 10, and vibrations due to the traveling act on the main body case 10.

[0042] The water droplets W formed in the region R1 have low wettability with the surface 141a, and are therefore pushed by the airflow along the surface of the fourth case 14, moving without remaining at a specific location on the surface 141a. For example, in the case of FIG. 3, water droplets formed on surface 141a with enhanced water repellency move to recess 148, pass through recess 148, and are discharged outward from fourth case 14 (see arrow in the figure).

[0043] Furthermore, the water droplets W also move due to vibrations acting on the main body case 10. For example, when water droplets are formed around recess 148 on surface 141a with enhanced water repellency, they slide down into recess 148 due to vibration, then move along the slight incline of recess 148, and are ultimately discharged outward from fourth case 14. This makes it possible to effectively prevent water droplets W from accumulating.

[0044] In this way, it is possible to effectively prevent water droplets W from accumulating at specific locations on the fourth case 14, and after the accumulated water droplets W evaporate, salt from precipitating (salting out) at the locations where the water droplets W had accumulated. Therefore, corrosion of the fourth case 14 due to the precipitated salt can be effectively prevented.

[0045] As described above, the pattern exhibiting the water-repellent effect is provided around the connection portion 16 with the actuator ACT, and therefore it is possible to suitably prevent moisture from remaining around the connection portion 16 and causing salting out at the connection portion 16. This ensures stable support of the actuator ACT (electrical component) at the connection portion 16.

[0046] On the other hand, if the surface 141a of the fourth case 14 does not have an area R1 with a pattern that exhibits a water-repellent effect, a layer of air as shown in Figure 9 will not be formed at the interface Wb where the surface 141a and the water droplet W come into contact. 10, the contact angle φ between the interface Wb with the surface 141a and the surface Wa of the water droplet W is equal to or greater than 0 degrees and less than 90 degrees. In this case, the lotus effect is not exerted, and the wettability of the water droplet W with respect to the surface 141a increases. In other words, the water repellency of the surface 141a decreases.

[0047] If the lotus effect is not exerted, the water droplets W on the surface 141a will have a small contact angle and will therefore be difficult to move even when subjected to wind currents or vibrations. In this case, the water droplets W accumulate locally, and when the accumulated water droplets W evaporate, the salt contained in the water droplets is likely to precipitate in the area where the water droplets W accumulated.

[0048] As described above, in the region R1 provided with the water-repellent pattern, water droplets W adhering to the surface are less likely to accumulate locally. Therefore, by setting the region R1 provided with the water-repellent pattern so as to surround the region in the fourth case 14 where salting out should be avoided, it is possible to effectively suppress the occurrence of salting out in the region where salting out should be avoided.

[0049] In the present embodiment, the region R1 to which the pattern MK exhibiting the water-repellent effect is applied is set around the connecting portion 16. The region R1 to which the pattern MK exhibiting the water-repellent effect is applied is not limited to the above-described embodiment. The cover 14 may be provided so as to cover the entire surface of the fourth case 14. Alternatively, the cover 14 may be provided only in an area of the surface of the fourth case 14 that is located on the upper side based on the installation state of the power transmission device 1 on the vehicle. In addition, in region R1 of Figure 4, the hatching may be provided only in the region with denser hatching, i.e., on the wall portion 143 side (the region on the right side in the figure) when viewed from the connection portion 16, so that only water droplets W in a specific region are discharged outward from the fourth case 14. The pattern MK that exerts the water-repellent effect can be applied even after processing, so that the pattern MK that exerts the water-repellent effect can be provided in a desired portion of the fourth case 14 to suppress salting out.

[0050] Furthermore, guides (recesses 147, 148, 149) may be provided to guide water droplets W outward from the fourth case 14, and an area R1 with a pattern MK that exhibits a water-repellent effect may be set in an area on the surface 141a adjacent to the guides. In such a case, the water droplets W that are generated can be actively discharged outward from the fourth case 14. Furthermore, if it is desired to prevent salting out around other parts of the fourth case 14 (for example, other bolt boss portions 19: see FIG. 3) in addition to the connection portion 16, then by further providing a pattern MK that exhibits a water-repellent effect so as to surround the bolt boss portions 19, the bolt boss portions 19 can also be appropriately protected.

[0051] As described above, the fourth case 14 (reduction gear case) according to this embodiment has the following configuration. (1) The fourth case 14 has, on the surface 141a, which is the outer peripheral surface of the peripheral wall portion 141, a connection portion 16 that surrounds the through-hole 15 (insertion hole) into which at least the actuator ACT (electrical component) is inserted. In the fourth case 14, a pattern MK that exerts a water-repellent effect is provided around the connecting portion 16.

[0052] With this configuration, water around the connection portion 16 of the fourth case 14 (reduction gear case) can be quickly drained. Since the water around the connection part 16 can be quickly moved without accumulating around the connection part 16, it is possible to suppress the effects of salting out caused by accumulated water, and therefore it is possible to ensure stable support of the actuator ACT (electrical component) at the connection part 16.

[0053] (2) The actuator ACT (electrical component) is an electrical component for driving the manual shaft SH of the parking mechanism 3. The manual shaft SH passes through the through hole 15 of the connection portion 16 .

[0054] With this configuration, water around the connection portion 16 through which the manual shaft SH passes can be quickly drained.

[0055] (3) The water-repellent pattern MK is a matte pattern.

[0056] With this configuration, the surface 141a of the peripheral wall 141 has a matte texture around the connecting portion 16, which provides a water-repellent effect.

[0057] (4) The matte pattern is formed by an uneven surface when viewed in cross section.

[0058] By configuring it in this manner, by providing unevenness on the surface of the fourth case 14 (reduction gear case), a matte pattern is formed on the surface 141a, which is the outer surface of the fourth case 14, and a water-repellent effect can be exerted in the area of the surface 141a where the matte pattern is applied.

[0059] In the above-described embodiment, an example was given of a case in which, of the four cases (first case 11, second case 12, third case 13, fourth case 14) that make up the main body case 10 of the power transmission device 1, the surface of the reducer case (fourth case 14) that houses the reduction mechanism is provided with a pattern (matt-like pattern) that exhibits a water-repellent effect. If there are areas on the surface of the second case 12 or the third case 13, which have surfaces exposed to the outside, that need to be protected to avoid salting out, the areas on the surface of the second case 12 or the third case 13 that need to be protected may be provided with a pattern that exhibits a water-repellent effect.

[0060] The present invention is not limited to the above-described embodiment, and includes various modifications and improvements that can be made within the scope of the technical concept thereof. [Explanation of symbols]

[0061] 1 Power transmission device 10 Main unit case 14 Case 4 141 Peripheral wall section 141a surface 141b recess 143 Wall 146 Ribs 147, 148, 149 Recesses 15 through holes 16 Connection 17, 18 Bolt boss part 2 motors 3 Parking mechanism 4 planetary reduction gears 5 Differential mechanism 31 Park Gear 32 Park Pole 32a Engagement part 71 Support shaft Over 900 degrees ACT Actuator MK Water-repellent pattern R1 area SH manual shaft W water drop

Claims

1. The connector has a connection portion on its outer circumferential surface that surrounds an insertion hole into which at least the electrical component is inserted, A reducer case having a pattern that exhibits a water-repellent effect around the connection portion, a first recessed portion extending in a direction away from the connection portion having the insertion hole is provided in the region of the outer peripheral surface of the reducer case where the pattern exhibiting the water-repellent effect is provided; the first recess is inclined such that the depth thereof increases with increasing distance from the connection portion, The reducer case, wherein the first recess is a recess having an arc-shaped cross section when viewed from the extending direction of the first recess.

2. The reducer case of claim 1, wherein in the area on the outer surface of the reducer case where the pattern that exhibits the water-repellent effect is applied, inclined surfaces are provided on both sides of the first recess that become deeper as they approach the first recess.

3. the connecting portion is provided on a boss portion surrounding the insertion hole, In the area on the outer circumferential surface of the reducer case where the pattern exhibiting the water-repellent effect is applied, the first recess and a second recess shallower than the first recess are located on one side and the other side of the connection portion, The second recess communicates with the first recess via a third recess that bypasses the connecting portion. The reducer case according to claim 2 .

4. The electrical equipment is an electrical equipment that drives a manual shaft of a parking mechanism, The reducer case according to claim 1 , wherein the manual shaft passes through an insertion hole in the connecting portion.

5. The reducer case according to claim 1 , wherein the pattern is a matte finish.

6. The reducer case according to claim 5 , wherein the matte pattern is formed by an uneven shape when viewed in cross section on the surface.

Images