JP6227417B2 - Lubricating device for vehicle transmission - Google Patents

Description

  The present invention relates to a lubricating device for a vehicle transmission mounted on a vehicle.

  Patent Document 1 below discloses a vehicle transmission that includes a lubricating oil supply path in a transmission case. This lubricating oil supply path fulfills the function of supplying lubricating oil to a desired supply destination, and particularly includes two lubricating circuits (a first lubricating circuit and a second lubricating circuit) arranged with a small clearance therebetween. ing. The clearance of the minute clearance is set so that the lubricating oil flowing out from the lubricating oil outlet of the first lubricating circuit on the upstream side is delivered to the lubricating oil inlet of the second lubricating circuit on the downstream side only by the surface tension.

Japanese Patent No. 2695651

  In the vehicle transmission described above, it is necessary to interpose a minute clearance between the two lubrication circuits constituting the lubricating oil supply path. In this case, since the size of the minute clearance is limited in order to smoothly transfer the lubricating oil from the first lubricating circuit to the second lubricating circuit, the degree of freedom in designing the lubricating oil supply path is reduced. In designing this type of transmission, it is preferable to construct a lubricating oil supply path at a low cost.

  Accordingly, the present invention has been made in view of the above points, and one of its purposes is to provide a design freedom of a lubricating oil supply path for supplying lubricating oil in a lubricating device for a vehicle transmission. This is to increase the lubricating oil supply path at a low cost.

  In order to achieve this object, a lubricating device for a vehicle transmission according to the present invention includes a main body case, an oil pipe, and an oil guide groove. The main body case functions to accommodate the transmission main body of the vehicle transmission. Lubricating oil provided in the main body case and stored in the lubricating oil reservoir is introduced into the oil pipe. The oil guide groove is provided on the inner wall surface of the main body case facing the pipe outlet of the oil pipe and positioned below the pipe outlet, and extends toward a predetermined lubricating oil supply region. The oil guide groove includes an upstream groove portion, a downstream groove portion, and an offset structure. The upstream groove portion extends downward from the pipe outlet of the oil pipe. The downstream groove portion is provided continuously to the groove outlet of the upstream groove portion and extends along a direction intersecting both the extending direction of the upstream groove portion and the extending direction of the oil pipe. As a result, the lubricating oil stored in the lubricating oil reservoir flows into the oil guide groove through the oil pipe, and further flows through the upstream groove portion and the downstream groove portion in accordance with gravity in this oil guide groove, thereby supplying a predetermined lubricating oil. Guided to the area. The offset structure is configured such that the pipe shaft center of the oil pipe is distant from the groove center in the groove width direction of the upstream groove part toward the downstream groove part side. According to this offset structure, the lubricating oil after flowing out from the pipe outlet of the oil pipe, in particular, one groove side surface on the side where the oil pipe is offset among the two groove side surfaces facing each other in the upstream groove portion of the oil guiding groove. The upstream groove portion easily flows to the predetermined lubricating oil supply region along one groove side surface. As a result, when it is desired to guide the lubricating oil to a predetermined lubricating oil supply region while changing the flow direction without being affected by the direction or inclination of the vehicle, a simple structure such as an oil guiding groove can be used. it can. For example, the lubricating oil supply path can be realized at low cost as compared with the case where the lubricating oil supply path is formed by drilling the main body case. Further, in the oil guide groove, it is only necessary that the downstream groove portion is connected to the upstream groove portion, and the direction of the downstream groove portion with respect to the upstream groove portion is not limited, so that the degree of freedom in designing the lubricating oil supply path can be increased. Become.

  In the above-described lubricating device, the pipe outlet of the oil pipe and one groove side surface on the side where the oil pipe is offset of the two groove side surfaces facing each other of the oil guide groove overlap with each other in the vehicle vertical direction. It is preferable. Thereby, the lubricating oil which flowed out from the pipe exit of an oil pipe can be made to act directly on one groove side surface. As a result, the lubricating oil is more likely to flow along the one groove side surface to a predetermined lubricating oil supply region.

  In the above-described lubricating device, one groove side surface of the oil guide groove includes a convex portion protruding toward the other groove side surface so as to ensure a surface area exceeding the other groove side surface facing the one groove side surface. Is preferred. This makes it easier for the lubricating oil to adhere to one groove side surface than the other groove side surface.

  In the above-described lubricating device, it is preferable that one groove side surface of the oil guide groove is configured such that the convex portion protrudes downward in the downstream groove portion. Thereby, it becomes easy to collect lubricating oil in the front-end | tip area | region of a convex part in the downstream groove part of an oil guide groove. As a result, the lubricating oil can be prevented from flowing out of the downstream groove portion.

  In the lubricating device described above, it is preferable that a convex portion is continuously provided on one groove side surface of the oil guide groove from the upstream groove portion to the downstream groove portion. Thereby, lubricating oil can be continuously flowed along one groove side surface from an upstream groove part to a downstream groove part.

  In the above lubricating device, it is preferable that the convex portion is configured using a step surface provided on one groove side surface. In this case, the convex portion can be formed at a low cost by casting the main body case.

In the above lubricating device, it is preferable that a pipe insertion hole is provided in the case inner wall surface of the main body case. This pipe insertion hole, the pipe outlet of the oil pipe provided connected to the oil guide groove is to be inserted. In this case, it is preferable that the opposing surface of the inner peripheral surface of the pipe insertion hole that faces the bottom of the pipe outlet is configured as a guide path for guiding the lubricating oil flowing out from the pipe outlet to the oil guide groove. As a result, the lubricating oil flowing out from the pipe outlet of the oil pipe can be reliably guided to the oil guide groove using the opposing surface of the pipe insertion hole.

  As described above, according to the present invention, in a lubricating device for a vehicle transmission, the degree of freedom in designing a lubricating oil supply path for supplying lubricating oil is increased, and the lubricating oil supply path is realized at low cost. It became possible.

FIG. 1 is a partial cross-sectional view of a vehicle transmission in which a lubricating device 100 is provided in a main body case 13 that houses a transmission main body 10. FIG. 2 is a diagram schematically showing a cross-sectional structure of the lubricating device 100 in FIG. 3 is a cross-sectional view taken along the line AA in FIG. FIG. 4 is a cross-sectional view of the oil guide groove 130 in FIG. FIG. 5 is a cross-sectional view of the oil guide groove 130 in FIG. 6 is a cross-sectional view taken along line DD in FIG. FIG. 7 is a cross-sectional view showing a state in which the lubricating oil L flows through the upstream groove 131 of the oil guide groove 130 shown in FIG. FIG. 8 is a cross-sectional view showing a state in which the lubricating oil L flows through the downstream groove portion 132 of the oil guide groove 130 shown in FIG. FIG. 9 is a cross-sectional view showing a modification of the downstream groove 132 in FIG. FIG. 10 is a cross-sectional view corresponding to FIG. 6 for the lubricating device 200 according to the modified example. FIG. 11 is a cross-sectional view corresponding to FIG. 8 for the lubricating device 200 according to the modified example. FIG. 12 is a cross-sectional view corresponding to FIG. 6 for a lubricating device 300 according to a modified example.

  Hereinafter, a lubricating device for a vehicle transmission (hereinafter also simply referred to as “transmission”) according to an embodiment of the present invention will be described with reference to the drawings. In the drawings, the front and rear of the vehicle are indicated by arrows X1 and X2, respectively, the upper and lower sides of the vehicle are indicated by arrows Y1 and Y2, respectively, and the right and left sides of the vehicle are indicated by arrows Z1 and Z2, respectively. ing. These directions can be applied to the transmission in a state before being mounted on the vehicle and to the transmission in a state after being mounted on the vehicle.

  A lubricating device 100 shown in FIG. 1 supplies lubricating oil (also referred to as “oil”) toward a bearing portion 12 that rotatably supports an output shaft 11 of a transmission main body 10 of a transmission with respect to a main body case 13. Device. The output shaft 11 is an output shaft for outputting a driving torque input to the input shaft from a driving source such as an engine to the axle. The bearing portion 12 is a vehicle rear-side bearing portion of the two bearing portions that rotatably support both end portions of the output shaft 11. The bearing portion 12 includes a bearing 12a and an oil seal 12b. Typically, the bearing 12a can be appropriately selected from a sliding bearing (bush), a ball bearing (ball bearing), and a rolling bearing (roller bearing). Typically, the oil seal 12b can be configured as a member obtained by baking a synthetic rubber that forms a seal lip to a metal ring provided around the output shaft 11. The main body case 13 is a casing (housing) composed of one or a plurality of members for housing the transmission main body 10. The main body case 13 corresponds to the “main body case” of the present invention.

  As shown in FIG. 2, the lubrication apparatus 100 is provided in the main body case 13, and includes an oil pipe 110, a pipe insertion hole 120 and an oil guide groove 130 provided in the main body case 13, respectively. In short, the lubrication device 100 is configured by the oil pipe 110 and the parts corresponding to the pipe insertion hole 120 and the oil guide groove 130 in the main body case 13.

  The oil pipe 110 is a tubular (tubular) member having an internal space, and extends in a long shape along the vehicle front-rear direction X1, X2. A pipe inlet (first end) 110 a of the oil pipe 110 is connected to an oil receiver (lubricating oil storage section) 15 that can store the lubricating oil L in the main body case 13 that houses the transmission main body 10. For this reason, the lubricating oil L stored in the oil receiver 15 is introduced into the oil pipe 110 from the pipe inlet 110a. Then, the lubricating oil L introduced into the oil pipe 110 circulates in the vehicle rear X2 (also referred to as “first direction F1”) toward the pipe outlet 110b. This oil pipe 110 corresponds to the “oil pipe” of the present invention.

  The pipe insertion hole 120 is configured by denting the inner wall surface 14 of the main body case 13 in the vehicle rear X2. The case inner wall surface 14 is opposed to the pipe outlet (second end) 110 b of the oil pipe 110 and extends so as to intersect the pipe axial direction of the oil pipe 110. In this case, the pipe insertion hole 120 is preferably configured as a cast hole formed when the main body case 13 is molded. The oil pipe 110 is held in the main body case 13 by inserting the pipe outlet 110 b into the pipe insertion hole 120. That is, the pipe insertion hole 120 functions to hold the pipe outlet 110 b of the oil pipe 110. In addition, an opposing surface (receiving surface (upper surface) for receiving the lubricating oil) 121 facing the bottom 111 of the pipe outlet 110b in the inner peripheral surface of the pipe insertion hole 120 guides the lubricating oil flowing out from the pipe outlet 110b to oil. It is configured as a guide path for guiding to the groove 130. This pipe insertion hole 120 corresponds to the “pipe insertion hole” of the present invention. Thereby, the lubricating oil flowing out from the pipe outlet 110 b of the oil pipe 110 can be reliably guided to the oil guiding groove 130 using the facing surface 121 of the pipe insertion hole 120.

  As shown in FIG. 3, the oil guide groove 130 is a groove portion provided in the case inner wall surface 14 so as to be connected to the pipe insertion hole 120. The oil guide groove 130 is a groove portion in which a part of the inner wall surface 14 of the case is recessed in the vehicle rear X2, and includes an upstream groove portion 131 and a downstream groove portion 132 that are continuous with each other. The oil guide groove 130 extends toward the bearing portion 12 (predetermined lubricating oil supply region) of the output shaft 11. The oil guide groove 130 corresponds to the “oil guide groove” of the present invention. In this case, the oil guide groove 130 is preferably configured as a cast groove formed when the main body case 13 is molded. The upstream groove 131 is a portion of the oil guide groove 130 that extends from below the pipe outlet 110b of the oil pipe 110 to the vehicle lower side Y2 (also referred to as “second direction F2”). The groove outlet of the upstream groove 131 coincides with the groove inlet of the downstream groove 132. The downstream groove 132 is a crossing direction (“third direction F3”) that is continuous with the groove outlet of the upstream groove 131 in the oil guide groove 130 and intersects both the extending direction of the upstream groove 131 and the extending direction of the oil pipe 110. It is also a part extending to the bearing portion 12 of the output shaft 11. For this reason, the lubricating oil that flows in the second direction F <b> 2 (vehicle lower Y <b> 2) in accordance with gravity in the upstream groove 131 is introduced into the downstream groove 132 through the upstream groove 131. The lubricating oil flows in the third direction F <b> 3 according to gravity in the downstream groove portion 132, and then reaches the bearing portion 12 of the output shaft 11. The upstream groove 131 and the downstream groove 132 here correspond to the “upstream groove” and the “downstream groove” of the present invention, respectively.

  As shown in FIG. 3, in the oil guide groove 130 described above, the groove bottom surface 133 and the two groove side surfaces 134 and 135 are formed across the upstream groove portion 131 and the downstream groove portion 132. The two groove side surfaces 134 and 135 are standing wall surfaces that are connected to the groove bottom surface 133 and are erected while facing each other on both sides. As shown in FIGS. 4 and 5, the groove side surface 134 is a standing wall surface that forms one groove side surface in the upstream groove portion 131 and the groove upper side surface in the downstream groove portion 132. On the other hand, the groove side surface 135 is a standing wall surface that forms the other groove side surface in the upstream groove portion 131 and forms the groove lower side surface in the downstream groove portion 132. In this case, the groove side surface 134 corresponds to “one groove side surface” of the present invention, and the groove side surface 135 corresponds to “the other groove side surface” of the present invention.

  The other groove side surface 135 of the two groove side surfaces 134 and 135 is a flat surface, whereas one groove side surface 134 has a first extending surface 134a and a second extending surface that are arranged in steps. 134b (hereinafter also referred to as “stepped structure”). Specifically, the groove side surface 134 is disposed such that the first extending surface 134a is closer to the groove side surface 135 than the second extending surface 134b. Thereby, the convex part 134c is formed using the level | step difference surface of the 1st extending surface 134a and the 2nd extending surface 134b of the groove | channel side surface 134. FIG. The convex portion 134 c protrudes toward the groove side surface 135, and is continuously provided from the upstream groove portion 131 to the downstream groove portion 132. Therefore, the groove side surface 134 has a surface area larger than the groove side surface 135. In this case, by using the step surface between the first extending surface 134 a and the second extending surface 134 b, the convex portion 134 c can be formed at a low cost by casting the main body case 13.

  As shown in FIG. 5, the groove side surface 134 is positioned obliquely above the groove side surface 135 in the downstream groove portion 132 of the oil guide groove 130. In this case, the oil guide groove 130 has a structure in which the convex part 134c of the groove side surface 134 protrudes downward toward the vehicle lower side Y2 in the downstream groove part 132 (hereinafter also referred to as “downward convex part structure”). Is preferred. That is, in the downstream groove part 132, it is preferable that the convex part 134c of the groove side surface 134 is curved so as to protrude downward. In this configuration, the downstream groove portion 132 of the oil guide groove 130 is curved from the upstream groove portion 131 to, for example, the vehicle right side Z1, and a predetermined direction is set between the vehicle rear X2 and the vehicle right side Z1 (in FIG. 4). This can be achieved by a structure that bends in the diagonal direction Z3).

  Further, as shown in FIG. 6, in the lubricating device 100 configured as described above, when the oil pipe 110 is viewed from above, the pipe shaft center (center line) C <b> 1 of the oil pipe 110 is the upstream groove portion 131 of the oil guide groove 130. The groove center in the groove width direction (center line passing through the center of the groove opening width in the vehicle left-right direction Z1, Z2 in the upstream groove portion 131) C2 is configured to deviate to the downstream groove portion 132 side (hereinafter referred to as “offset structure”). ”). Specifically, the lubricating device 100 is shifted such that the center line C1 related to the oil pipe 110 is separated from the center line C2 related to the upstream groove 131 by a distance d to the right of the vehicle. In this case, the distance d is set so that the pipe outlet 110b of the oil pipe 110 and the one groove side surface 134 on the side where the oil pipe 110 is offset in the upstream groove portion 131 overlap with each other in the vehicle vertical direction with respect to X1 and X2. Is preferred. This offset structure corresponds to the “offset structure” of the present invention.

  According to the lubricating device 100 configured as described above, the lubricating oil L stored in the oil receiver 15 passes through the lubricating oil supply path including the oil pipe 110, the pipe insertion hole 120, and the oil guide groove 130, and the bearing portion 12 of the output shaft 11. To be supplied. In this case, according to the above-described offset structure, the lubricating oil L after flowing out from the pipe outlet 110b of the oil pipe 110 is particularly likely to flow in a biased manner toward the groove side surface 134 of the upstream groove 131 of the oil guide groove 130, In the upstream groove part 131, it becomes easy to flow along the groove side surface 134 (refer FIG. 7). Further, since the pipe outlet 110b of the oil pipe 110 and the groove side surface 134 overlap with each other in the vehicle vertical direction X1 and X2, the lubricating oil L flowing out from the pipe outlet 110b of the oil pipe 110 directly acts on the groove side surface 134. The lubricating oil L can flow more easily along the groove side surface 134. Furthermore, since the surface area of the groove side surface 134 having the above-mentioned stepped structure (convex portion 134 c) exceeds the surface area of the groove side surface 135, the lubricating oil L is particularly easy to adhere to the groove side surface 134. Further, by providing the convex portion 134c of the groove side surface 134 continuously from the upstream groove portion 131 to the downstream groove portion 132, the lubricating oil L can continuously flow along the groove side surface 134 from the upstream groove portion 131 to the downstream groove portion 132. . As a result, a simple structure such as the oil guiding groove 130 is used when it is desired to guide the lubricating oil to a predetermined lubricating oil supply region while changing its flow direction without being affected by the direction or inclination of the vehicle. Can do. For example, the lubricating oil supply path can be realized at a lower cost than the case where the lubricating oil supply path is formed by drilling the main body case 13. Further, in the oil guide groove 130, the downstream groove portion 132 only needs to be connected to the upstream groove portion 131, and the orientation of the downstream groove portion 132 with respect to the upstream groove portion 131 is not limited. It becomes possible to increase.

  Further, as shown in FIG. 8, in the oil guide groove 130, the lubricating oil L flowing along the groove side surface 134 of the downstream groove portion 132 flows through the first extending surface 134 a and the second extending surface by the downward projecting structure described above. It is easy to gather at the tip region of the convex portion 134c from both of the existing surfaces 134b (see arrows in two directions in FIG. 8). The lubricating oil L collected in the tip region of the convex portion 134c is easily held in the tip region by surface tension. Accordingly, the lubricating oil L flowing from the upstream groove 131 to the downstream groove 132 is selectively flowed to the bearing portion 12 of the output shaft 11 along the extending direction of the downstream groove 132 without departing from the extending direction of the downstream groove 132. be able to. In short, the lubricating oil L can be prevented from flowing away from the downstream groove 132.

  The present invention is not limited to the above exemplary embodiment, and various applications and modifications are possible. For example, each of the following embodiments to which the above embodiment is applied can be implemented.

  In the oil guide groove 130 of the lubricating device 100 of the above embodiment, the case where the structure in which the downstream groove portion 132 is curved from the upstream groove portion 131 to the vehicle right side Z1 and curved in the oblique direction Z3 is described. Other structures may be used in the invention. For example, as shown in FIG. 9, only a structure in which the downstream groove 132 is curved from the upstream groove 131 to the vehicle right side Z1 can be used. In the downstream groove portion 132, the groove side surface 134 is disposed immediately above the groove side surface 135. Also in this case, as in the embodiment shown in FIG. 8, the lubricating oil L is likely to adhere to the groove side surface 134 having a surface area exceeding the groove side surface 135.

  In the oil guide groove 130 of the lubricating device 100 of the above embodiment, a description is given of the case where an offset structure is used in which the pipe outlet 110b of the oil pipe 110 and the groove side surface 134 of the upstream groove 131 overlap in the vehicle vertical direction with respect to X1 and X2. However, in the present invention, if the pipe outlet 110b is offset toward the groove side surface 134 in the upstream groove portion 131, the pipe outlet 110b and the groove side surface 134 do not necessarily overlap. Also in the case of this configuration, there is an effect that the lubricating oil L after flowing out from the pipe outlet 110b of the oil pipe 110 is likely to flow inwardly toward the groove side surface 134 of the upstream groove 131.

  In the oil guide groove 130 of the lubricating device 100 of the above embodiment, the case where the convex portion 134c is provided on the groove side surfaces 134 of both the upstream groove portion 131 and the downstream groove portion 132 using the step surface has been described. The convex part 134c can also be provided on the groove side surface 134 of only the downstream groove part 132. In this case, other shapes than the shape using the step surface between the first extending surface 134a and the second extending surface 134b can be employed for the convex portion 134c.

  In the present invention, the groove side surfaces 134 of both the upstream groove portion 131 and the downstream groove portion 132 of the oil guide groove 130 can be flattened as shown in the lubrication apparatus 200 shown in FIG. In this case, the above-described offset structure makes it easier for the lubricating oil to adhere to the groove side surface 134 than to the groove side surface 135 in the upstream groove portion 131. Further, in the downstream groove portion 132, as shown in FIG. 11, the groove upper surface (right angle surface) formed by the groove bottom surface 133 and the groove side surface 134 has a larger surface area than the flat surface. For this reason, the lubricating oil that has flowed from the upstream groove 131 to the downstream groove 132 is easily held on the groove upper surface of the downstream groove 132 by surface tension.

  In the lubrication apparatuses 100 and 200 of each of the above embodiments, the case where the lubricating oil flows from the pipe outlet 110b of the oil pipe 110 to the oil guide groove 130 through the opposing surface (receiving surface) 121 of the pipe insertion hole 120 has been described. In the present invention, the pipe insertion hole 120 may be omitted. In this case, the lubricating oil 300 flowing out from the pipe outlet 110b of the bearing 12 oil pipe 110 of the output shaft 11 is directly introduced into the oil guide groove 130 as shown in the lubricating device 300 shown in FIG. According to this configuration, the structure of the lubricating device can be further simplified.

  In the lubricating devices 100, 200, and 300 of each of the embodiments described above, the case where the lubricant supply destination is the bearing portion 12 of the output shaft 11 has been described. However, in the present invention, the lubricant supply destination is limited to this. It is not something. For example, the present invention can also be applied to a structure in which lubricating oil is supplied to a bearing portion of an input shaft to which driving torque from a driving source such as an engine is input.

DESCRIPTION OF SYMBOLS 10 ... Transmission main body, 11 ... Output shaft, 12 ... Bearing part, 12a ... Bearing, 12b ... Oil seal, 13 ... Main body case, 14 ... Case inner wall surface, 15 ... Oil receiver, 100, 200, 300 ... Lubrication device, DESCRIPTION OF SYMBOLS 110 ... Oil pipe, 110a ... Pipe inlet, 110b ... Pipe outlet, 111 ... Bottom part, 120 ... Pipe insertion hole, 130 ... Oil guide groove, 131 ... Upstream groove part, 132 ... Downstream groove part, 133 ... Groove bottom face, 134, 135 ... Side surface of groove, 134a ... first extending surface, 134b ... second extending surface, 134c ... convex part, C1 ... pipe axis center, C2 ... groove center

Claims (7)

A body case for housing a transmission body of a vehicle transmission;
An oil pipe that is provided in the main body case and into which the lubricating oil stored in the lubricating oil reservoir is introduced;
A vehicle comprising an oil guide groove provided on a case inner wall facing the pipe outlet of the oil pipe and positioned below the pipe outlet in the main body case and extending toward a predetermined lubricating oil supply region A lubricating device for a transmission,
The oil guide groove is
An upstream groove extending downward from the pipe outlet of the oil pipe,
A downstream groove provided continuously along a groove outlet of the upstream groove and extending along a direction intersecting both the extending direction of the upstream groove and the extending direction of the oil pipe;
An offset structure configured such that the pipe shaft center of the oil pipe is deviated to the downstream groove part side from the groove center in the groove width direction of the upstream groove part;
A lubricating device for a vehicle transmission, comprising: The lubricating device for a vehicle transmission according to claim 1,
The pipe outlet of the oil pipe and one groove side surface on the side where the oil pipe is offset of the two opposite groove side surfaces of the oil guide groove are configured to overlap in the vehicle vertical direction. , Lubricating device for vehicle transmission. The vehicle transmission lubrication device according to claim 2,
The one groove side surface of the oil guide groove includes a convex portion that protrudes toward the other groove side surface so as to ensure a surface area greater than the other groove side surface facing the one groove side surface. Transmission lubrication device. The lubricating device for a vehicle transmission according to claim 3,
The lubricating device for a vehicle transmission, wherein the one groove side surface of the oil guide groove is configured such that the convex portion protrudes downward in the downstream groove portion. The vehicle transmission lubrication device according to claim 3 or 4,
A lubricating device for a vehicle transmission, wherein the convex portion is continuously provided on the one groove side surface of the oil guide groove from the upstream groove portion to the downstream groove portion. A lubricating device for a vehicle transmission according to any one of claims 3 to 5,
The said convex part is a lubricating device of the transmission for vehicles comprised using the level | step difference surface provided in said one groove | channel side surface. A lubricating device for a vehicle transmission according to any one of claims 1 to 6,
The provided connected to the oil guide groove in the casing inner wall surface of the main body case the is the pipe outlet insertion of the oil pipe comprises a Rupa type insertion hole,
A vehicular transmission in which an opposing surface of the inner wall surface of the pipe insertion hole facing the bottom of the pipe outlet is configured as a guide path for guiding the lubricating oil flowing out from the pipe outlet to the oil guide groove. Machine lubrication equipment.

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