JP2009257420A - Oil amount adjusting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an oil amount adjusting device capable of storing a preset amount of oil in an oil reservoir without depending to the fastening torque for fastening a pipe member and a seat member to each other. <P>SOLUTION: This oil amount adjusting device 10 comprises a seat plug 20 formed with an oil flow passage 21 for discharging the oil inside an oil reservoir and a nearly cylindrical pipe member 30 inserted into the oil flow passage 21 of the seat plug 20 from an upstream side. The outer peripheral surface of the pipe member 30 is formed with an abutment portion 32, which abuts on the top surface 23 of a wall portion of the seat plug 20. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an oil amount adjusting device that adjusts the amount of oil stored in an oil storage tank.

  Conventionally, oil is injected into an automatic transmission mounted on a vehicle for gear shifting processing and lubrication. For example, an oil storage tank of an automatic transmission described in Patent Document 1 is provided with an oil amount adjusting device for adjusting oil stored in the oil storage tank in an oil pan constituting the bottom portion thereof.

  In the oil amount adjusting device described in Patent Document 1, a cylindrical sheet member (cylindrical member) in which a drain hole capable of discharging oil is formed in an oil pan is fixed, and the drain hole of this sheet member is fixed. A pipe member (pipe-like member) is inserted from the bottom to the top. A female screw is formed on the inner peripheral surface (wall surface of the drain hole) of the sheet member, and a male screw is formed on the outer peripheral surface of the lower end of the pipe member. By screwing the male screw with the female screw of the sheet member, The pipe member is attached to the oil pan via the sheet member in a state where the upper end of the pipe member protrudes upward from the sheet member.

In this oil amount adjusting device, when the oil is injected into the oil storage tank with the pipe member attached to the oil pan, the oil can be injected up to the upper end position of the pipe member. If an amount of oil exceeding the amount is injected, the oil flows out from the drain hole through the pipe member. Thereby, in this oil amount adjusting device, it can be confirmed that the oil has been injected into the oil storage tank up to the height of the upper end position of the pipe member. In this state, the drain plug is inserted from below the seat member. The lower end of the pipe member is closed.
JP 2007-218385 A

  By the way, in the oil amount adjusting device described in Patent Document 1, the upper end position of the pipe member is defined by the tightening torque when the pipe member is screwed to the seat member. Therefore, when the male screw of the pipe member and the female screw of the drain hole are not sufficiently engaged, the upper end position of the pipe member becomes lower than the preset position, and a predetermined amount set in the oil storage tank is preset. A smaller amount of oil will be stored. On the other hand, in order to avoid such a situation that the amount of oil stored in the oil storage tank is smaller than a predetermined amount, when the tightening torque when screwing the pipe member to the seat member is increased, these thread portions are It will be worn out. In particular, the sheet member is often made of metal and the pipe member is often made of resin, and the pipe member having low rigidity inevitably wears the threaded portion.

  The present invention has been made in view of such circumstances, and the object thereof is an amount of oil that can store a predetermined amount of oil in an oil storage tank without depending on the tightening torque between the pipe member and the seat member. It is to provide an adjusting device.

Hereinafter, means for solving the above-described problems and the effects thereof will be described.
According to the first aspect of the present invention, there is provided a seat member in which an oil flow passage for discharging oil in the oil storage tank is formed, a substantially cylindrical shape, and an outer peripheral surface of the seat member that contacts the wall portion of the seat member. And a pipe member inserted into the oil flow passage of the seat member from the upstream side.

  According to the above configuration, the pipe member is inserted into the oil flow passage formed in the seat member from the upstream side. When the abutting portion of the pipe member abuts against the wall portion of the sheet member, the pipe member is restricted from moving to the downstream side of the oil flow path from the position, so that the oil is stored in the pipe member from the seat member. A length protruding into the tank is defined. When oil is poured into an oil reservoir tank to which such an oil amount adjusting device is attached, the oil is stored up to the opening at the top of the pipe member, and when oil is injected beyond that, the oil is stored at the top of the pipe member. Since the oil is discharged from the opening through the oil passage of the pipe member and the sheet member, a predetermined amount of oil corresponding to the liquid level of the opening at the top of the pipe member is stored in the oil storage tank. In this way, according to the above configuration, the abutment portion of the pipe member is brought into contact with the wall portion of the sheet member without depending on the tightening torque between the pipe member and the sheet member. A predetermined amount of oil can be stored in the oil storage tank. Further, since there is no need to screw the pipe member and the sheet member, wear due to this screwing does not occur in each member.

In the above configuration, the seat member may be integrally formed with the oil reservoir such that the oil flow passage is formed directly at the bottom of the oil reservoir.
According to a second aspect of the present invention, in the first aspect of the present invention, in the pipe member, the pipe member and the inside of the oil storage tank are arranged on the side inserted into the oil flow passage on the basis of the contact portion. The gist is that an oil discharge hole communicating with the inside of the cylinder is formed.

  In the conventional oil amount adjusting device, since the pipe member is inserted and attached from the downstream side of the oil flow passage formed in the seat member, the pipe member is removed from the seat member when oil is discharged by oil exchange or the like. The oil is discharged by pulling out the oil to the downstream side. On the other hand, in the oil amount adjusting apparatus according to the present invention, the pipe member is inserted into the oil flow passage of the seat member from the upstream side and includes the abutting portion. Therefore, the pipe member can be pulled out from the seat member to the downstream side. Can not. It is conceivable to drain the oil by pulling the pipe member upstream, but the upper part of the oil reservoir is often covered or other members are often arranged, and the pipe member is placed upstream. It is often difficult to pull out. In this regard, according to the above configuration, since the oil discharge hole is formed in the pipe member on the side inserted into the oil flow path from the contact portion, the contact portion is formed on the wall portion of the sheet member. By moving the pipe member upstream from the abutting state, the oil discharge hole can be exposed in the oil reservoir and the oil can be discharged through the oil discharge hole.

  The gist of the invention described in claim 3 is the invention according to claim 2, further comprising a holding member that holds the pipe member in a state where the oil discharge hole is exposed in the oil storage tank.

  According to the above configuration, since the oil can be discharged through the oil discharge hole while the pipe member is held by the holding member, there is no need to hold the pipe member by an operator during the operation of discharging the oil by oil replacement or the like. The oil discharge operation can be easily performed.

  According to a third aspect of the present invention, specifically, according to the fourth aspect of the present invention, the holding member includes a seat portion that supports the pipe member from below and is attached to the lower surface of the oil storage tank. It is possible to adopt a configuration such that it can be configured. The holding member may be fixed to the lower surface of the oil storage tank at all times, or may be configured to be attached to the lower surface of the oil storage tank only when the oil is discharged.

  Further, in the case where the holding member is attached to the lower surface of the oil storage tank only at the time of the oil discharge operation, the pipe member or the You may make it comprise this holding member with the sealing member attached to a sheet | seat member. That is, in the oil amount adjusting device, when the oil is discharged, the sealing member is removed from the pipe member or the sheet member in order to open the downstream opening of the pipe member. Therefore, the sealing member is provided with a detachable mounting portion on the lower surface of the oil storage tank and the seat portion, and the sealing member is removed from the lower surface of the oil storage tank when the sealing member is removed from the pipe member or the sheet member. And the pipe member is supported from below by the seat portion of the sealing member. When such an aspect is adopted, the sealing member is lost during the oil discharging operation because the sealing member is attached to the oil storage tank even when the oil is discharged from the pipe member or the sheet member. There is no need to provide a dedicated holding member.

  According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the support member is formed in the oil storage tank and supports a portion of the pipe member exposed in the oil storage tank. The gist is to provide.

  According to the above configuration, when the pipe member is inserted into the oil flow passage of the seat member from the upstream side, the inserted portion is supported by the oil reservoir via the seat member, and the oil reservoir of the pipe member Since the part exposed inside is also supported by the oil reservoir through the support member, the pipe member is supported by the oil reservoir in at least two places. Thereby, the supportability of a pipe member can be improved and it can suppress that a pipe member is damaged or pulls out from a sheet | seat member by the vibration of an oil storage tank, etc.

  Hereinafter, an embodiment in which an oil amount adjusting device according to the present invention is applied to an oil amount adjusting device that adjusts oil in an oil storage tank of an automatic transmission of a vehicle will be described with reference to FIGS.

  FIG. 1 shows a state in which the oil amount adjusting device according to the present embodiment is attached to an oil storage tank. As shown in FIG. 1, the automatic transmission includes a valve body 60 in which a valve that performs lubrication of each part and hydraulic control for a shift process is accommodated, and an area below the valve body 60 is the lubrication. And an oil storage tank for storing oil for shifting. Specifically, an iron oil pan 65 is disposed at the bottom of the oil storage tank, and the oil pan 65 and the valve body 60 are connected by a case constituting a side surface of the oil storage tank (not shown). The oil pan 65 and the valve body 60 constitute an oil storage tank. The oil pan 65 is provided with the oil amount adjusting device 10 according to the present embodiment.

  As shown in FIG. 1, the oil amount adjusting device 10 includes a seat plug 20 as a seat member fixed to the oil pan 65. The seat plug 20 may be fixed to the oil pan 65 by welding or the like in a state where the seat plug 20 is inserted into a through hole 66 formed through the oil pan 65. It may be configured to be detachable and may be integrally formed with the oil pan 65, and the manner of attachment to the oil pan 65 is not particularly limited. The seat plug 20 is formed in a substantially cylindrical shape, and the inside of the cylinder forms an oil flow passage 21 for communicating the inside and outside of the oil storage tank and discharging the oil in the oil storage tank to the outside. ing. An internal thread is formed in the lower half of the outer peripheral surface of the oil flow passage 21, that is, in the lower half of the oil discharge direction (hereinafter simply referred to as "downstream"). A resin pipe member 30 formed in a substantially cylindrical shape is inserted into the seat plug 20 from above the oil flow passage 21, that is, from the upstream side in the oil discharge direction (hereinafter simply referred to as “upstream side”). Yes. Further, a sealing plug 40 for preventing oil from flowing out from the downstream side of the oil flow passage 21 is inserted into the seat plug 20. The sealing plug 40 is formed by integrally molding a seat portion 41 formed in a flat columnar shape and a columnar insertion portion 42 protruding from the center of the seat portion 41. In the sealing plug 40, a magnet 45 is provided on the top of the insertion portion 42, and a male screw is formed on the outer peripheral surface of the insertion portion 42, and this male screw is screwed with a female screw of the seat plug 20. When the sealing plug 40 is inserted into the oil flow passage 21 of the seat plug 20, a resin oil ring 47 is interposed between the sealing plug 40 and the oil pan 65. In this state, the pipe member 30 is supported from below by the sealing plug 40.

  The pipe member 30 includes a pipe body 31 formed in a cylindrical shape having an upper end and a lower end opened. The pipe body 31 is formed so that its outer diameter is smaller than the cross-sectional area of the oil flow passage 21 and can be inserted into and removed from the oil flow passage 21. Although the uppermost stream side of the oil flow passage 21 is larger than the outer diameter of the pipe body 31, it is formed to have substantially the same size. Therefore, the amount of oil that leaks from between the pipe main body 31 and the oil flow passage 21 to the outside of the oil storage tank when the pipe main body 31 is inserted / extracted from the oil flow passage 21 hardly poses a problem. Further, in the valve body 60, a concave portion 61 is formed in a portion facing the seat plug 20 and has a circular section whose cross section is slightly larger than the outer diameter of the pipe body 31. In a state where the oil amount adjusting device 10 is attached to the oil storage tank, the lower end side of the pipe body 31 is inserted into the oil flow passage 21 of the seat plug 20, while the upper end side of the pipe body 31 is inserted into the recess 61 of the valve body 60. ing. In this way, the pipe member 30 is supported by the oil pan 65 constituting a part of the oil storage tank via the seat plug 20 and the sealing plug 40 and is exposed to the oil storage tank from the seat plug 20. Is supported by being loosely fitted to the valve body 60 constituting a part of the oil reservoir, and is supported at two locations with respect to the oil reservoir.

  Further, the pipe member 30 is formed with a contact portion 32 that protrudes from the outer peripheral surface of the pipe body 31 in a region of a predetermined width on the upper side in the axial direction of the pipe body 31. The abutting portion 32 is formed in a flat cylindrical shape covering the entire outer peripheral surface of the predetermined width region in the axial direction of the pipe body 31. Further, the pipe body 31 is inserted into the oil flow passage 21 with respect to the contact portion 32, that is, on the lower side than the contact portion 32 of the pipe body 31 in FIG. An oil discharge hole 33 communicating with the inside of the cylinder 31 is formed.

  In the oil storage tank, the oil amount is adjusted so that the oil amount becomes a predetermined amount suitable for the shift processing and lubrication of the automatic transmission by the oil amount adjusting device 10 thus configured. When storing the oil in the oil storage tank, the oil is stored in a state where the sealing plug 40 is removed from the seat plug 20, and the oil is stored even when the oil is discharged at the time of oil replacement or the like. In the state where the plug 40 is removed from the seat plug 20, the oil in the oil storage tank is discharged. Next, FIG. 1 to FIG. 3 show the state of the oil amount adjusting device 10 when storing a predetermined amount of oil in the oil storage tank, and the oil amount adjustment when discharging the oil in the oil storage tank at the time of oil replacement The state of the device 10 will be described.

  FIG. 2 shows a state of the oil amount adjusting device 10 when oil is stored in the oil storage tank. When storing oil in the oil storage tank, the oil pump of an automatic transmission (not shown) is driven by putting the internal combustion engine in an idle operation state to supply oil to each part of the transmission, and the oil storage tank The oil is supplied so that a predetermined amount of oil set in advance is stored. FIG. 2 shows a state where the oil is stored up to a predetermined height h1 in the oil storage tank, but when the oil is stored in the oil storage tank, the oil is not initially stored in the oil storage tank. As the oil is stored in the oil storage tank, the oil level gradually increases and the state shown in FIG. 2 is obtained.

  When oil is stored in the oil storage tank, as shown in FIG. 2, the insertion portion 42 of the sealing plug 40 is extracted from the oil flow passage 21 of the seat plug 20, and the sealing plug 40 is inserted into the insertion portion 42. Is attached to the lower surface of the oil pan 65 by a magnet 45 provided on the top of the oil pan. In this way, the insertion portion 42 functions as an attachment portion. The sealing plug 40 supporting the pipe member 30 from below is pulled out of the seat plug 20, so that the pipe member 30 is lower than the state shown in FIG. 1, that is, downstream of the oil flow passage 21 in the seat plug 20. Move to. As described above, the pipe member 30 is formed with the abutting portion 32 protruding from the pipe body 31, so that the abutting portion 32 abuts on the upper surface 23 of the wall portion of the seat plug 20, thereby The member 30 is restricted from moving to the downstream side of the oil flow passage 21 from the position. Accordingly, since the length h2 of the pipe member 30 protruding from the seat plug 20 to the oil storage tank is defined, the length h1 from the oil pan 65 to the upper end of the pipe member 30 is also defined.

  In this state, oil is supplied to the oil reservoir from an oil supply port (not shown), and an oil pump (not shown) is driven to supply oil to each part of the automatic transmission. When each part of the automatic transmission is filled with oil, the oil level in the oil storage tank gradually increases as the oil is supplied. In this way, oil is stored in the oil storage tank up to the opening at the upper end of the pipe body 31 of the pipe member 30, and when oil is supplied more than that, the oil flows from the opening at the upper end of the pipe body 31 to the pipe. It is discharged out of the oil storage tank through the main body 31. Therefore, a predetermined amount of oil corresponding to the liquid level height h1 at the upper end of the pipe body 31 is stored in the oil storage tank. Accordingly, a predetermined amount of oil is set in advance by setting the dimensions of the respective parts of the seat plug 20 and the pipe member 30 so that the liquid level height h1 at the upper end of the pipe body 31 becomes a predetermined amount. Can be stored in the oil storage tank. In this way, when a predetermined amount of oil is stored in the oil storage tank, it is not necessary to screw the male screw of the pipe member and the female screw of the seat plug as in the conventional case. Then, after the oil is stored in the oil storage tank in this manner, the sealing plug 40 is again inserted into the oil flow passage 21 of the seat plug 20 from below as shown in FIG. It is attached to the seat plug 20 by screwing. Thus, the lower end of the pipe member 30 and the lower end of the oil flow passage 21 of the seat plug 20 are sealed by the sealing plug 40, and the pipe member 30 moves upward as shown in FIG. Is inserted into the recess 61 of the valve body 60 and supported by the valve body 60. When the pipe member 30 is moved upward from the state shown in FIG. 2 to the state shown in FIG. 1, the pipe member 30 is quickly moved upward to immediately put the sealing plug 40 into the oil flow passage 21. If inserted, the amount of oil leaking through the oil discharge hole 33 of the pipe member 30 does not matter so much. At this time, the pipe member 30 is moved upward in a state in which the opening at the lower end of the pipe body 31 in the pipe member 30 is closed by the top of the insertion portion 42 of the sealing plug 40, so that the oil is discharged from the oil discharge hole 33. You may make it suppress leaking.

  Next, the state of the oil amount adjusting device 10 when the oil in the oil storage tank is discharged during the oil change will be described with reference to FIG. Here, in the conventional oil amount adjusting device, the pipe member is configured to be inserted and attached to the oil flow passage formed in the seat plug from the downstream side. Oil is discharged by pulling the pipe member downstream. On the other hand, in the oil amount adjusting device 10 of the present embodiment, the pipe member 30 is inserted into the oil flow passage 21 of the seat plug 20 from the upstream side and includes the contact portion 32. Cannot be pulled downstream. It is possible to drain the oil by pulling the pipe member 30 to the upstream side of the oil flow passage 21, but the upper part of the oil storage tank is constituted by the valve body 60, so that the pipe member 30 is moved to the upstream side. It is also difficult to pull out.

  Therefore, in the present embodiment, when the oil is discharged from the oil storage tank, the pipe member 30 is moved more than the state shown in FIG. 2 where the contact portion 32 of the pipe member 30 contacts the upper surface 23 of the wall portion of the seat plug 20. It moves to the upstream of the oil flow path 21, and it is set as the state shown in FIG. As a result, as shown in FIG. 3, the oil discharge hole 33 is positioned higher than the upper surface 23 of the wall portion of the seat plug 20, and the oil discharge hole 33 is exposed in the oil storage tank. Further, in the present embodiment, the oil discharge hole 33 of the pipe member 30 is held in an exposed state in the oil storage tank by supporting the pipe member 30 from below by the seat portion 41 of the sealing plug 40 during oil discharge. The sealing plug 40 constitutes a holding member. Specifically, when holding the pipe member 30 so that the oil discharge hole 33 is exposed in the oil storage tank in this way, the pipe member 30 has a height from the lower end to the upper end of the oil discharge hole 33. Is set longer than the total length of the height of the sheet plug 20 and the height of the insertion portion 42 of the sealing plug 40. In this state, the oil in the oil reservoir is discharged from the oil discharge hole 33 of the pipe member 30 through the pipe body 31 of the pipe member 30. Thus, in this embodiment, it is not necessary to hold the pipe member 30 by an operator or the like when the oil is discharged.

According to the embodiment described above in detail, the following operational effects can be achieved.
(1) The oil amount adjusting device 10 of the present embodiment includes a seat plug 20 in which an oil flow passage 21 for discharging oil in an oil storage tank is formed, and an oil in the seat plug 20 that is formed in a substantially cylindrical shape. And a pipe member 30 inserted into the flow passage 21 from the upstream side. And the pipe member 30 is provided with the contact part 32 contact | abutted to the upper surface 23 of the wall part of the seat plug 20 in the outer peripheral surface. As a result, when the pipe body 31 of the pipe member 30 is inserted into the oil flow passage 21 of the seat plug 20 from the upstream side and the contact portion 32 of the pipe member 30 contacts the upper surface 23 of the wall portion of the seat plug 20, the pipe The member 30 is restricted from moving downstream from the position. Therefore, the length of the pipe member 30 protruding from the seat plug 20 into the oil storage tank is defined as h2, and when oil is injected into the oil storage tank in this state, the upper end of the pipe body 31 in the pipe member 30 is injected into the oil storage tank. A predetermined amount of oil corresponding to the liquid level height h1 of the opening is stored. In this way, in the present embodiment, the abutting portion 32 of the pipe member 30 is not affected by the tightening torque between the pipe member and the seat plug, and the liquid level height h1 of the oil stored in the oil reservoir is not changed. It is possible to store a predetermined amount of oil which is defined by being brought into contact with the upper surface 23 of the 20 wall portions and preset in the oil storage tank. Further, since it is not necessary to screw the pipe member 30 and the seat plug 20, wear due to this screwing does not occur in each member.

  (2) In the oil amount adjusting device 10 of the present embodiment, the inside of the oil storage tank and the inside of the pipe member 30 communicate with each other on the side inserted into the oil flow passage 21 with reference to the contact portion 32 of the pipe member 30. An oil discharge hole 33 is formed. Thereby, by moving the pipe member 30 to the upstream side of the oil flow passage 21 of the seat plug 20, the oil discharge hole 33 can be exposed in the oil storage tank, and the oil can be discharged. It is not necessary to completely pull out 30 from the oil flow passage 21 of the seat plug 20.

  (3) In the oil amount adjusting device of the present embodiment, the oil discharge hole 33 of the pipe member 30 is held by the sealing plug 40 so as to be exposed in the oil storage tank when the oil is discharged. Thereby, it is not necessary for the operator to hold the pipe member 30 during the operation of discharging the oil, and the oil discharging operation can be easily performed.

  Specifically, the sealing plug 40 includes a magnet 45 and a detachable insertion portion 42 on the lower surface of the oil pan 65 and a seat portion 41 that supports the pipe member 30 from below. The sealing plug 40 normally inserts the insertion portion 42 into the oil flow passage 21 of the seat plug 20 from below to seal the opening of the lower end of the pipe body 31 in the pipe member 30 and the oil flow passage 21 of the seat plug 20. When the oil is discharged, the pipe 45 is attached to the lower surface of the oil pan 65 by the magnet 45 of the insertion portion 42 and is supported by the seat portion 41 from below. As described above, since the sealing plug 40 is attached to the oil storage tank even when the oil is discharged from the seat plug 20, the sealing plug 40 is not lost during the oil discharging operation. Further, it is not necessary to provide a dedicated holding member for holding the oil discharge hole 33 in the oil storage tank.

  (4) In the oil amount adjusting device of the present embodiment, the recess 61 is formed in the valve body 60 constituting the oil storage tank, and when the oil amount adjusting device 10 is attached to the oil storage tank, the pipe is connected to the recess 61. The part exposed in the oil storage tank is supported by inserting the upper end of the member 30. Thus, the pipe member 30 is supported by the oil pan 65 through the seat plug 20 by being inserted into the oil flow passage 21 of the seat plug 20 from the upstream side, and the portion exposed in the oil storage tank is also a valve. It is supported by the recess 61 of the body 60. Therefore, since the pipe member 30 is supported at two locations by the valve body 60 and the oil pan 65 constituting the oil storage tank, the support of the pipe member 30 can be improved, and the pipe is generated by vibration of the oil storage tank. It is possible to suppress the member 30 from being damaged or coming out of the seat plug 20.

(Other embodiments)
In addition, you may change the said embodiment suitably as follows.
In the oil amount adjusting device 10 of the above embodiment, the contact portion 32 formed on the pipe member 30 is formed so as to protrude from the cylindrical pipe body 31 and is formed in a cylindrical shape that covers the intermediate portion of the pipe body 31. However, a contact part is not restricted to the aspect of the said embodiment.

  For example, the pipe member 71 of the oil amount adjusting device 70 shown in FIG. 4 has a small diameter portion 71a whose outer diameter is smaller than the cross-sectional area on the most upstream side of the oil flow passage 76 of the seat plug 75, and its outer diameter is larger than the small diameter portion 71a. The large-diameter portion 71b and the intermediate portion 71c that connects the small-diameter portion 71a and the large-diameter portion 71b and gradually increases in outer diameter from the small-diameter portion 71a to the large-diameter portion 71b are formed in a cylindrical shape. In the seat plug 75, the uppermost wall surface 77 of the oil flow passage 76 is formed in substantially the same shape as the outer peripheral surface of the intermediate portion 71 c of the pipe member 71. As a result, when the small diameter portion 71 a of the pipe member 71 is inserted from the upstream side of the oil flow passage 76 in the seat plug 75, the outer peripheral surface of the intermediate portion 71 c is the wall surface 77 on the most upstream side of the oil flow passage 76 in the seat plug 75. The pipe member 71 is restricted from moving to the downstream side of the oil flow passage 76 from the position. Accordingly, the length of the pipe member 71 protruding from the seat plug 75 into the oil storage tank is defined. Thus, the contact portion does not need to have a shape protruding from the cylindrical pipe body, and can be configured by the outer peripheral surface of the cylindrical member. The wall surface of the oil flow passage may be used instead of the upper end of the oil flow passage.

  Further, in the oil amount adjusting device 80 shown in FIG. 5, a substantially rectangular contact portion 83 is formed so as to protrude from the outer peripheral surface of the pipe body 82 in the pipe member 81. Also in this oil amount adjusting device 80, when the pipe body 82 is inserted into the oil flow passage 86 of the seat plug 85, the contact portion 83 comes into contact with the upper surface 87 of the wall portion of the seat plug 85, and the pipe member 81 A length protruding from the seat plug 85 into the oil storage tank is defined. When the abutting portion 83 is formed to project from the pipe body 82 of the pipe member 81 in this way, the abutting portion 83 can be formed in a substantially rectangular shape instead of a cylindrical shape. Further, a plurality of contact portions 83 shown in FIG. 5 may be formed on the outer peripheral surface of the pipe body 82.

  In each of the above embodiments, the upper end of the pipe member is opened, and when storing the oil in the oil storage tank, the oil is discharged from the opening at the upper end so that the oil in the oil storage tank becomes a predetermined amount. . However, as in the oil amount adjusting device 90 shown in FIG. 6, for example, the pipe body 92 of the pipe member 91 is closed at the upper end, and the oil reservoir and the inside of the pipe body 92 are communicated with the upper part of the outer peripheral surface. An oil hole 93 may be formed. In the case of configuring such an aspect, when the contact portion 94 is brought into contact with the upper surface 23 of the wall portion of the seat plug 20 when storing oil in the oil storage tank, the oil is stored up to the lower end of the oil hole 93. The Rukoto. Accordingly, when the contact portion 94 is brought into contact with the upper surface 23 of the wall portion of the seat plug 20, the liquid level corresponding to the position of the lower end of the oil hole 93 corresponds to a predetermined amount of oil set in advance. The dimensions of each member are set as appropriate.

  In each of the above embodiments, the concave portion 61 having a circular cross section that loosely fits the upper end of the pipe member 30 is formed in the valve body 60. However, the configuration of the portion that supports the pipe member 30 in the valve body 60 is not particularly limited. For example, in the oil amount adjusting device 95 shown in FIG. 7, a rod-like portion 69 is formed to protrude from the center of a concave portion 68 having a circular cross section formed in the valve body 67. Therefore, after the oil is stored in the oil storage tank, as shown in FIG. 7, when the sealing plug 40 is inserted into the oil flow passage 21 of the seat plug 20, the pipe member 30 moves upward and the upper end of the pipe main body 31. Is loosely fitted in the recess 68 of the valve body 60 and a rod-like portion 69 protruding from the bottom surface of the recess 68 is inserted into the pipe body 31. Also according to such an aspect, the part exposed to the oil storage tank in the pipe member 30 can be supported. In addition, you may employ | adopt the aspect that the supporting member which supports the pipe member 30 is extended from the side wall of an oil storage tank. In addition, the pipe member 30 may be supported only by the seat plug 20 without providing a support member that supports the portion of the pipe member that is exposed in the oil storage tank.

  In each of the above embodiments, the sealing plug 40 is used as a holding member that holds the oil discharge hole 33 in the pipe member 30 so as to be exposed in the oil storage tank, but the mode of the holding member is not particularly limited. For example, a dedicated holding member 97 different from the sealing plug 40 may be provided as in an oil amount adjusting device 96 shown in FIG. The holding member 97 shown in FIG. 8 includes an attachment portion 98 and a seat portion 99 and is formed in a substantially “L” shape. The attachment portion 98 is rotatably attached to the oil pan 65. Is changed to a state indicated by a solid line in which the seat portion 99 does not hold the pipe member 30 and a state indicated by a two-dot chain line in which the seat portion 99 holds the pipe member 30. The holding member is not always configured to be attached to the oil pan 65 in this way, but may be configured to be attached to the wall of the oil storage tank or the oil pan only during use, and further to be attached to the oil storage tank. Instead, the pipe member 30 may be a table that holds the oil discharge hole 33 exposed in the oil storage tank. Further, without providing such a holding member, the operator may hold the oil discharge hole 33 of the pipe member 30 in a state where the oil discharge hole 33 is exposed in the oil storage tank when the oil is discharged.

  In the oil storage device of each of the above embodiments, the pipe member is provided with the oil discharge hole. However, when the pipe member and the seat plug are not covered, for example, the pipe member is completely removed from the seat plug. The oil may be discharged by pulling it out.

  -Although the oil storage device of each said embodiment was an oil storage device which stores the oil used for the shift process and lubrication of an automatic transmission, the oil storage device of each said embodiment is an oil storage device of a non-transmission transmission. For example, the present invention may be applied to other oil storage devices.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram which shows the state with which the oil quantity adjusting device concerning one Embodiment of this invention was attached to the oil storage tank, About the side structure, a seat plug, a sealing plug, an oil pan, and a drain pan about a pipe member The structure is shown. In the same embodiment, the schematic diagram which shows the state of the oil quantity adjustment apparatus at the time of storing oil in an oil storage tank. The schematic diagram which shows the state of the oil quantity adjusting device at the time of discharging oil at the time of oil replacement in the same embodiment. The schematic diagram which shows the contact aspect of a seat plug and a pipe member in the oil quantity adjusting device concerning other embodiment of this invention. The perspective view which shows a seat plug and a pipe member in the oil quantity adjusting device concerning other embodiment of this invention. The schematic diagram which shows the oil quantity adjusting device concerning other embodiment of this invention. The schematic diagram which shows the oil quantity adjusting device concerning other embodiment of this invention. The schematic diagram which shows the oil quantity adjusting device concerning other embodiment of this invention.

Explanation of symbols

  10, 70, 80, 90, 95, 96 ... oil amount adjusting device, 20, 75, 85 ... seat plug, 21, 76, 86 ... oil flow passage, 23, 87 ... upper surface of wall, 30, 71, 81 , 91 ... Pipe member, 31, 82, 92 ... Pipe body, 32, 83, 94 ... Contact part, 33 ... Oil discharge hole, 40 ... Sealing plug, 41, 99 ... Seat part, 42 ... Insert part, 45 ... Magnets, 47 ... Oil rings, 60 ... Valve bodies, 61, 68 ... Recesses, 65 ... Oil pans, 66 ... Through holes, 67 ... Valve bodies, 69 ... Rod-shaped parts, 71a ... Small diameter parts, 71b ... Large diameter parts, 71c ... Intermediate part, 77 ... Wall surface, 93 ... Oil hole, 97 ... Holding member, 98 ... Mounting part.

Claims (5)

A sheet member formed with an oil flow passage for discharging oil in the oil storage tank;
A pipe member that is formed in a substantially cylindrical shape and has an abutting portion that abuts against a wall portion of the sheet member on an outer peripheral surface thereof, and a pipe member that is inserted into the oil flow passage of the sheet member from the upstream side. Oil amount adjusting device. In claim 1,
The pipe member is formed with an oil discharge hole that communicates the inside of the oil storage tank and the inside of the pipe member on the side inserted into the oil flow passage with respect to the contact portion.
An oil amount adjusting device characterized by that. In claim 2,
An oil amount adjusting apparatus comprising: a holding member that holds the pipe member in a state in which the oil discharge hole is exposed in the oil storage tank. In claim 3,
The said holding member is provided with the seat part which supports the said pipe member from the downward direction, and is comprised so that attachment to the lower surface of the said oil storage tank is possible, The oil quantity adjustment apparatus characterized by the above-mentioned. In any one of Claims 1-4,
An oil amount adjusting device comprising: a support member that is formed in the oil storage tank and supports a portion of the pipe member that is exposed in the oil storage tank.

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