JP2002340153A - Oil cooler piping structure for automatic transmission - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the select operating force of a select device for an automatic transmission, to improve the durability thereof, to facilitate positioning when assembling, and to improve assembling workability. SOLUTION: In this oil cooler piping structure for an automatic transmission, the automatic transmission is connected to one side of an engine, which is loaded on a vehicle, in the crank axial direction, while tilting the cylinder axis to one side in the cross direction of the vehicle, and a select device and an oil cooler for the automatic transmission are arranged in the other side of the engine in the crank axial direction, and the automatic transmission and the select device are communicated with each other through a select cable, and the automatic transmission and the oil cooler are communicated with each other through the oil cooler piping. The select cable and the oil cooler piping are inserted into a space formed between the top surface of an oil pan of the engine and a lower surface of an engine mount bracket supported by a vehicle frame, and the oil cooler piping is fitted to the top surface of the oil pan, and the oil cooler piping is provided with a cable holder for holding the select cable.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil cooler piping structure for an automatic transmission, and more particularly, to a reduction in select operation force of a selection device of an automatic transmission, an improvement in durability, and an assembling method. The present invention relates to an oil cooler piping structure for an automatic transmission, which can facilitate positioning of the oil cooler and improve assembling workability.

[0002]

2. Description of the Related Art Some engines mounted on vehicles are provided with an automatic transmission connected thereto and provided with an oil cooler for cooling oil of the automatic transmission. The automatic transmission and the oil cooler are connected by an oil cooler pipe,
The oil is circulated between the automatic transmission and the oil cooler by the oil cooler pipe.

FIG. 10 shows an oil cooler piping structure of a conventional automatic transmission. In the figure, 10
2 is a vehicle, 104 is a floor panel, 106 is a cabin, 10
Reference numeral 8 denotes an engine room, 110 denotes an engine, 112 denotes a cylinder block, 114 denotes a cylinder head, and 116 denotes an oil pan. In the vehicle 102, the cylinder block 112 of the engine 110 is mounted on a frame (not shown) by an engine mount bracket, and the crank axis C1 is directed in the front-rear direction of the vehicle 102 and the cylinder axis C2 is inclined to one side in the width direction of the vehicle 102. It is installed.

An automatic transmission 118 is connected to and provided on the rear side of the engine 110, which is one side in the direction of the crank axis C1. The automatic transmission 118 is provided with a range switching mechanism 120 for switching a range. Engine room 10
A select device 122 for operating the range switching mechanism 120 to switch the range of the automatic transmission 118 is provided on the vehicle room 106 side of the floor panel 104 above the floor panel 104. Switching arm 124 of range switching mechanism 120 and select device 1
22 and the select lever 126 is the select cable 1
The communication is provided by 28.

The crankshaft C1 of the engine 110
On the front side, which is the other side in the direction, an oil cooler 130 that cools the oil of the automatic transmission 118 is provided. The oil cooler 130 is provided in the middle of a cooling water pipe 132 that connects the engine 110 and a radiator (not shown). The automatic transmission 118 and the oil cooler 130 are connected to each other by an oil introduction hose 134 which is an oil cooler pipe 134.
A is provided in communication with the oil outlet hose portion 134B.

[0006] The oil cooler pipe 134 has an oil introduction pipe section 136A in the middle of the oil introduction hose section 134A and an oil exit pipe section 136 in the middle of the oil exit hose section 134B.
B is provided by being connected by a mounting bracket 138, and the mounting bracket 138 is attached to the upper surface 140 of the oil pan 116.
The mounting boss 142 is provided with a mounting bolt 144.

[0007] The oil whose temperature has increased in the automatic transmission 118 is introduced into the oil cooler 130 by an oil introduction hose portion 134A, and is cooled by heat exchange with cooling water in a cooling water pipe 132. The oil cooled in the oil cooler 130 is supplied to the automatic transmission 1 by an oil outlet hose portion 134B.
It is returned to 18.

[0008] An oil cooler piping structure for such an automatic transmission is disclosed in Japanese Patent Application Laid-Open No. 2000-145456. In the oil cooler piping structure disclosed in this publication, an automatic transmission and an oil cooler interposed in the middle of the cooling water piping are connected by an oil cooler piping, and a metal oil pipe portion is provided in the middle of the oil cooler piping. Provided,
The oil pipe portion is provided by being attached to an oil pan which is an engine component.

[0009]

However, FIG.
In the structure of the oil cooler piping 134 of the automatic transmission 118 shown in FIG. 2, the select device 122 of the automatic transmission 118 is disposed on the floor panel 104 of the vehicle 102, and the other end of the select cable 128 connected to the select device 122 at one end. The side is provided in communication with the range switching mechanism 120 over the cylinder block 112 of the engine 110.

On the other hand, in recent vehicles, there is a vehicle in which a selection device of an automatic transmission is disposed on a front instrument panel on the other side of an engine crank axis.

However, when a select device is provided on the instrument panel, the select cable 128 provided at a high position above the cylinder block 112 as shown in FIG. It is necessary to bend down to the lower part of 104 and then to ascend so as to communicate with the selection device provided on the instrument panel.

For this reason, the select cable is bent many times in different directions, and the sliding resistance between the outer case and the inner cable of the select cable is increased.
There is a disadvantage that a large select operation force is required, and there is a disadvantage that durability is reduced due to wear.

To cope with such inconvenience, it is conceivable to route a select cable on the upper surface of an oil pan of an engine which is mounted on a vehicle at an angle in a direction of a crank axis.

However, on the upper surface of the oil pan, other parts such as an oil cooler pipe for connecting the automatic transmission and the oil cooler, an engine mount bracket for supporting the engine on a frame, an air conditioner and its pipe, as described above. The proximity of the select cable may cause the select cable to interfere with and contact other parts such as an oil cooler pipe, so that the select cable needs to be held on the upper surface of the oil pan to prevent the contact.

[0015] For this reason, it is necessary to form a boss portion for holding the select cable in the oil pan, and it also requires parts such as a bracket for holding the select cable and bolts for attaching the bracket. And the number of parts and assembling man-hours increase, leading to an inconvenience of increasing costs.

[0016]

SUMMARY OF THE INVENTION Therefore, in order to eliminate the above-mentioned disadvantages, the present invention provides an engine having a crank axis oriented in the front-rear direction of a vehicle and an inclined cylinder axis mounted on one side in the width direction of the vehicle. An automatic transmission is connected to and provided on one side in the direction of the crank axis of the engine, and a select device for switching a range of the automatic transmission and an oil cooler for cooling oil of the automatic transmission are provided on the other side in the direction of the crank axis of the engine. The automatic transmission and the selection device are connected by a select cable, and the automatic transmission and the oil cooler are connected by an oil cooler pipe. The upper surface of the oil pan attached to the lower part of the cylinder block and the one end side are attached to the cylinder block and The select cable and the oil cooler pipe are inserted and provided in a space formed between the upper end of the oil pan and the lower end of the engine mount bracket attached to the frame of the vehicle at the other end. The oil cooler pipe inserted into the space is mounted on the upper surface of the oil pan, and a cable holder for holding the select cable is provided on the oil cooler pipe mounted on the upper surface of the oil pan. .

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The oil cooler piping structure of an automatic transmission according to the present invention has a select cable and an oil in a space formed between an upper surface of an oil pan of an engine and a lower surface of an engine mount bracket supporting the engine. The oil cooler pipe is inserted through the cooler pipe, the oil cooler pipe inserted into the space is attached to the upper surface of the oil pan, and the cable holder for holding the select cable is mounted on the oil cooler pipe mounted on the upper surface of the oil pan. With this arrangement, the select cable held by the cable holder at a low position between the upper surface of the engine oil pan and the lower surface of the engine mount bracket can be transferred to the instrument panel from the lower part of the floor on the other side in the direction of the crank axis of the engine. Connects to the automatic transmission select device with one gentle curve It is possible to arrange the cable without bending it many times in different directions as in the prior art, to avoid an increase in the sliding resistance between the outer case of the select cable and the inner cable, and to provide an oil cooler. By holding the select cable in the cable holder provided on the pipe, it is possible to prevent interference with other components arranged close to each other, and to easily position and attach the select cable.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 7 show a first embodiment of the present invention. 6 and 7, 2 is a vehicle, 4 is a vehicle body,
6 is a floor panel, 8 is a car room, 10 is an engine room,
12 is an instrument panel, 14 is a seat, 16 is a front wheel, and 18 is a rear wheel. Vehicle 2 has engine room 1
The seat 14 is disposed in the cabin 8 of the floor panel 6 above the engine 0, and the engine 20 is mounted in the engine room 10 below the floor panel 6.

As shown in FIG. 1, the engine 20 has a cylinder head 24 mounted on an upper portion of a cylinder block 22.
An oil pan 26 is mounted below the cylinder block 22. The engine 20 is provided with a cylinder block 22 attached to a frame (not shown) of the vehicle body 4 by an engine mount bracket 28. The engine mount bracket 28 is, as shown in FIG.
, An engine side bracket 28A attached to the frame, a vehicle body side bracket 28B attached to the frame, and a mount member 28C for elastically connecting the engine side bracket 28A and the vehicle body side bracket 28B.

The engine mount bracket 28 is provided with one end attached to the cylinder block 22.
The intermediate portion is directed to the left side in the width direction of the vehicle 2 and straddles over the oil pan 26, and the other end is attached to the frame. Thus, a space 34 is formed between the upper surface 30 of the oil pan 26 and the lower surface 32 of the engine mount bracket 28 so as to be directed in the direction of the crank axis C1.

The engine 20 is mounted on a frame by an engine mount bracket 28 so that the crank axis C1 is directed in the front-rear direction of the vehicle 2 and the cylinder axis C2 is inclined toward one side in the width direction of the vehicle 2.
It is mounted on the vehicle body 4.

An automatic transmission 36 is connected and provided on the rear side of the engine 20 which is one side in the direction of the crank axis C1. The automatic transmission 36 is connected to a final reduction gear 40 by a propeller shaft 38. The final reduction gear 40 is connected to the rear wheel 18 by a drive axle 42.

The automatic transmission 36 is provided with a range switching mechanism 44 for switching a range. Range switching mechanism 4
4 has a switching shaft 44A and a switching arm 44B as shown in FIG. On the instrument panel 12 on the front side of the seat 14 of the vehicle interior 8, a select device 46 for operating the range switching mechanism 44 to switch the range of the automatic transmission 36 is provided. The selecting device 46 has a select lever 46A.

The switching arm 44B of the range switching mechanism 44 and the select lever 46A of the select device 46 are provided in communication with each other via a select cable 48. As shown in FIG. 1, the select cable 48 includes an outer case 48A and an inner cable 48B slidably inserted into the outer case 48A. Select cable 48
Are provided with both ends of an outer case 48A held by cable brackets 50, respectively, and both ends of an inner cable 48B are provided so as to communicate with a switching arm 44B and a select lever 46A, respectively. FIG. 1 shows only the cable bracket 50 on the automatic transmission 36 side. The middle part of the select cable 48 is the oil pan 2
6 and a space 34 between the lower surface 32 of the engine mount bracket 28.

An oil cooler 52 for cooling the oil of the automatic transmission 36 is provided on the front side of the engine 20, which is the other side in the direction of the crank axis C1. I have. Automatic transmission 3
The oil cooler 52 is connected to the oil cooler 52 through an oil cooler pipe 54. The oil cooler pipe 54 has an oil introduction pipe 54A for introducing oil into the oil cooler 52.
And an oil outlet pipe portion 54B for supplying oil to the automatic transmission 36.

The oil introduction pipe 54A and the oil discharge pipe 54B, which are the oil cooler pipes 54, are connected to the automatic transmission 36.
, A transmission-side oil introduction pipe portion 54A-1 and a transmission-side oil outlet pipe portion 54B-1; an intermediate oil introduction pipe portion 54A-2 and an intermediate oil outlet pipe portion 54B-2 at an intermediate portion;
Cooler-side oil introduction pipe portion 54A- on the oil cooler 52 side
3 and a cooler oil outlet pipe portion 54B-3.

The transmission-side oil introduction pipe portion 54A-1 and the transmission-side oil outlet pipe portion 54B-1 are provided with one end connected to the automatic transmission 36 and the other end respectively connected to the transmission-side introduction hose portion. 56A-1 and a transmission-side outlet hose section 56B-1 are provided so as to communicate with one ends of the intermediate oil inlet pipe section 54A-2 and the intermediate oil outlet pipe section 54B-2. Intermediate oil introduction pipe 54A-2 and intermediate oil outlet pipe 54B
-2, the other end side is a cooler side introduction hose portion 56A-2, respectively.
The cooler-side outlet hose section 56B-2 and the cooler-side oil inlet pipe section 54A-3 and the cooler oil outlet pipe section 54
It is provided in communication with one end of B-3. Cooler-side oil inlet pipe 54A-3 and cooler oil outlet pipe 54B-
3 has the other end connected to the oil cooler 52.

The intermediate oil introduction pipe 54A-2 and the intermediate oil discharge pipe 54B, which are intermediate parts between the oil introduction pipe 54A and the oil discharge pipe 54B, which are the oil cooler pipes 54.
-2 is provided so as to pass through a space 34 between the upper surface 30 of the oil pan 26 and the lower surface 32 of the engine mount bracket 28. The intermediate oil introduction pipe 54A-2 and the intermediate oil outlet pipe 54B-2 are integrally connected by mounting brackets 58 and 60 for mounting to the oil pan 24, as shown in FIG.

FIGS. 3 and 4 show the mounting brackets 58 and 60.
As shown in the figure, the fixed portions 58A and 60A fixed to the parallel portions of the intermediate oil introduction pipe portion 54A-2 and the intermediate oil outlet pipe portion 54B-2, and the oil pan 26 is connected to the fixed portions 58A and 60A. Mounting part 58B ・ 6 to be mounted
0B and mounting holes 58C in the mounting portions 58B and 60B.
・ 60C is provided. The mounting brackets 58 and 60
In a state where the intermediate oil introduction pipe part 54A-2 and the intermediate oil outlet pipe part 54B-2 are attached to the oil pan 26, the attachment parts 58B and 60B are connected to the intermediate oil introduction pipe part 54A.
-2 and the intermediate oil outlet pipe portion 54B-2.

The engine mount bracket 2
Mounting bosses 62 and 64 are provided on the upper surface 30 of the oil pan 26 facing the oil pan 8. The mounting bosses 62 and 64 are provided with screw holes 62A and 64A. The mounting bolts 66 and 68 inserted into the mounting holes 58C and 60C of the mounting portions 58B and 60B are screwed into the screw holes 62A and 64A. The intermediate oil introduction pipe 54A-2 and the intermediate oil outlet pipe 54B-2 are attached to the oil pan 26 by mounting brackets 58 and 60, mounting bosses 62 and 64, and mounting bolts 66 and 68.

A cable holder 70 for holding the select cable 48 is attached to the mounting brackets 58 and 60.
72 are provided. The cable holders 70 and 72 are fixed to the fixing brackets 70A and 70A
72A, and holding portions 70B and 72B formed in a substantially gutter-like shape that is elastically deformable and has a substantially C-shaped cross section continuous with the fixing portions 70A and 72A.

One of the cable holders 70 is fixedly provided with a rivet 74 to a protruding portion 58D at the tip of a mounting portion 58B of the mounting bracket 58. The other cable holder 72 is fixed to a protruding portion 60 </ b> D of the fixing portion 60 </ b> A of the mounting bracket 60 in parallel with the mounting portion 60 </ b> B with a rivet 76. The cable holders 70 and 72 are positioned above the mounting brackets 58 and 60 in a state where the intermediate oil introduction pipe 54A-2 and the intermediate oil outlet pipe 54B-2 are attached to the oil pan 24. It is fixed and provided.

Thus, the cable holders 70 and 72
Is fixed to the mounting brackets 58 and 60 of the oil cooler pipe 54 so that the select cable 48 in the assembled state is held at a position above the oil cooler pipe 54. 3 and 4, reference numeral 78
80 is a cable holder 70 for the select cable 48.
It is a protection member attached to a portion held by 72.

Next, the operation will be described.

The automatic transmission 36 is configured to direct the crank axis C1 in the front-rear direction of the vehicle 2 and to incline the cylinder axis C2 to one side in the width direction of the vehicle 2 in the direction of the crank axis C1 of the engine 20 mounted on the vehicle body 4. It is provided so as to be connected to the rear side which is one side. Crank axis C1 of engine 20
On the front side, which is the other side in the direction, a select device 46 and an oil cooler 52 are provided.

The range switching mechanism 44 of the automatic transmission 36 and the select device 46 are provided in communication with each other via a select cable 48. The automatic transmission 36 and the oil cooler 52 are provided in communication with each other via an oil cooler pipe 54.
The select cable 48 and the oil cooler pipe 54 are disposed so as to be directed in the direction of the crank axis C1 (the front-rear direction of the vehicle).

An intermediate oil introduction pipe portion 54 A at an intermediate portion of the select cable 48 and an intermediate portion of the oil cooler pipe 54.
-2 and the intermediate oil outlet pipe portion 54B-2 are provided so as to pass through a space 34 between the upper surface 30 of the oil pan 26 and the lower surface 32 of the engine mount bracket 28.

The intermediate oil inlet pipe 54A-2 and the intermediate oil outlet pipe 54B-2 are provided with mounting brackets 58 and 60.
The mounting brackets 58 and 6 are integrally connected by
0 to the mounting bosses 62 and 64 on the upper surface 30 of the oil pan 24.
By screwing to the mounting bolts 66 and 68,
It is attached to the oil pan 26 and provided.

Cable holders 70 and 72 for holding the select cable 48 are fixed to the mounting brackets 58 and 60. Space 3 between upper surface 30 of oil pan 26 and lower surface 32 of engine mount bracket 28
The intermediate portion of the select cable 48 inserted into the cable holder 4 is interposed, via protective members 78 and 80, with holding portions 70B and 72B of the cable holding members 70 and 72 which are formed in a substantially C-shaped cross-section and are elastically deformable. And are elastically held.

At this time, the cable holders 70 and 72
The select cable 48 in the assembled state is fixed to the mounting brackets 58 and 60 of the oil cooler pipe 54 so as to be held above the oil cooler pipe 54, so that the select cable 48 is connected to the oil cooler pipe. 54 can be assembled to the cable holders 70 and 72 from above the intermediate oil introduction pipe 54A-2 and the intermediate oil outlet pipe 54B-2.

As described above, the structure of the oil cooler pipe 54 of the automatic transmission 36 is similar to that of the oil pan 26 of the engine 20.
3 formed between the upper surface 30 of the engine and the lower surface 32 of the engine mount bracket 28 supporting the engine 20
4, a select cable 48 and an oil cooler pipe 54 are inserted through the oil cooler pipe 54, and an oil cooler pipe 48 inserted into the space 34 is mounted on the upper surface 30 of the oil pan 26. Cable holders 70 and 72 for holding are provided.

Thus, the structure of the oil cooler pipe 54 of the automatic transmission 36 is
Upper surface 30 and lower surface 3 of engine mount bracket 28
The cable holder 70 is located in the lower space 34 between
The select cable 48 held by 72 is connected to the floor panel 6 on the other side of the engine 20 in the direction of the crank axis C1.
From the lower part, it is possible to communicate with the selection device 46 of the automatic transmission 36 disposed on the instrument panel 12 by one gentle bending, and to route without bending many times in different directions as in the related art. The outer case 48A of the select cable 48 and the inner cable 4
8B can be prevented from increasing.

For this reason, the structure of the oil cooler pipe 54 of the automatic transmission 26 can reduce the select operation force of the select device 46 and can improve the durability by avoiding a decrease in durability due to wear.

The structure of the oil cooler pipe 54 of the automatic transmission 26 is such that the cable holding members 70 and 72 provided on the oil cooler pipe 54 hold the select cable 48 so that the select cable 48 can be connected to other parts arranged close to each other. It is possible to prevent interference and easily position the select cable 4
8 can be assembled.

For this reason, the structure of the oil cooler pipe 48 of the automatic transmission 36 can facilitate the positioning of the select cable 48 at the time of assembling, improve the assembling workability, and connect the oil pan 24 to the oil pan 24. The formation of the boss portion for holding the select cable, the bracket for holding the select cable, and the parts such as the bolts for mounting the bracket can be eliminated, and the number of processing steps, the number of parts, and the assembling step can be reduced. Cost can be reduced, and space can be saved.

Further, the structure of the oil cooler pipe 54 of the automatic transmission 36 includes a mounting bracket 58 of the oil cooler pipe 54 such that the select cable 48 in the assembled state is held at a position above the oil cooler pipe 54.
Since the cable holders 70 and 72 are fixedly provided on the 60, the select cable 48 can be attached from above the oil cooler pipe 54 attached to the oil pan 26, and the assembling workability is improved. be able to.

FIG. 8 shows a second embodiment of the present invention. The structure of the oil cooler piping 54 of the second embodiment is such that cable holding portions 82 and 84 for holding the select cable 48 are formed integrally with the mounting brackets 58 and 60.

Thus, the structure of the oil cooler piping 54 of the second embodiment can eliminate the need for the single cable holders 70 and 72 and the rivets 74 and 76 and can reduce the number of rivets 74 and 76.
The fixing work by 75 can be unnecessary, the number of parts and the number of work steps can be reduced, and the cost can be reduced.

FIG. 9 shows a third embodiment of the present invention. The structure of the oil cooler piping 54 of the third embodiment is such that the cable housing grooves 86 and 88 for storing the select cable 48 in the mounting bosses 62 and 64 on the upper surface 30 of the oil pan 26 above the screw holes 62A and 64A. Are formed and provided in the mounting brackets 58 and 60 with the cable storage grooves 8.
The cover portions 90 and 92 that cover the 6.88 are formed and provided.

As described above, in the structure of the oil cooler pipe 54 of the third embodiment, the select cable 48 is stored in the cable storage grooves 86 and 88, and the mounting brackets 58 and 60 are mounted on the mounting bosses 62 and 64 by the mounting bolts 66 and 64. By attaching the cable 68, the cable housing grooves 86 and 88 are covered by the cover parts 90 and 92, and the select cable 48 can be held by the mounting boss parts 62 and 64. For this reason, the cable holders 70 and 72 and the rivets 74 and 76 can be made unnecessary, and the fixing work by the rivets 74 and 75 can be made unnecessary, and the number of parts and work steps can be reduced.
Cost reduction can be achieved.

[0051]

As described above, the oil cooler piping structure of the automatic transmission according to the present invention has the select cable held by the cable holder at a low position between the upper surface of the oil pan of the engine and the lower surface of the engine mount bracket. To
From the lower part of the floor on the other side in the direction of the crank axis of the engine to the selection device of the automatic transmission arranged on the instrument panel, it is possible to communicate with one gentle curve,
The cable can be routed without bending many times in different directions as in the related art, and it is possible to avoid an increase in sliding resistance between the outer sheath and the inner cable of the select cable. By holding the select cable in the holder, it is possible to prevent interference with other components arranged close to each other, and to easily position and attach the select cable.

For this reason, the oil cooler piping structure of this automatic transmission can reduce the select operation force of the select device and can improve the durability by avoiding a decrease in durability due to abrasion. Positioning during assembly can be facilitated, assembling operability can be improved, a boss for holding the select cable on the oil pan, a bracket for holding the select cable, and bolts for attaching the bracket And other parts can be eliminated,
The number of processing steps, the number of parts, and the number of assembling steps can be reduced, cost can be reduced, and space can be saved.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of an engine showing a first embodiment of an oil cooler piping structure according to the present invention.

FIG. 2 is a partial rear view of the engine according to arrow II of FIG. 1;

FIG. 3 is a perspective view of a mounting bracket and a cable holder on the front side of the engine.

FIG. 4 is a perspective view of a mounting bracket and a cable holder on the rear side of the engine.

5A is a plan view of an intermediate oil introduction pipe and an intermediate oil outlet pipe, FIG. 5B is a front view of the intermediate oil introduction pipe and an intermediate oil outlet pipe, and FIG. It is a side view of a part and an intermediate oil outlet pipe part.

FIG. 6 is a schematic plan view of the vehicle.

FIG. 7 is a schematic side view of a vehicle.

FIG. 8 is an enlarged rear view of a mounting boss portion of an oil pan according to a second embodiment.

FIG. 9 is an enlarged rear view of a mounting boss portion of an oil pan according to a third embodiment.

FIG. 10 is a schematic side view of an engine showing a conventional example of an oil cooler piping structure.

[Explanation of symbols]

 2 Vehicle 4 Body 6 Floor panel 8 Cab 10 Engine room 12 Instrument panel 20 Engine 22 Cylinder block 26 Oil pan 28 Engine mount bracket 30 Upper surface 32 Lower surface 34 Space 36 Automatic transmission 44 Range switching mechanism 46 Select device 48 Select cable 52 Oil cooler 54 Oil cooler piping 58/60 Mounting bracket 62/64 Mounting boss 66/68 Mounting bolt 70/72 Cable holder

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3D039 AA04 AA20 AB01 AC33 AD22 AD26 AD48 AD53 3J063 AA02 AB02 AC04 BA01 BA05 BA15 XA02 XH02 XH12 XH23 XH25 XH42 3J067 AA01 AB07 AC01 BA01 DA13 FB81 FB83 FB85 GA01

Claims (2)

[Claims] An automatic transmission connected to one side in a crank axis direction of an engine mounted with an inclined cylinder axis on one side in a width direction of the vehicle and a crank axis oriented in a front-rear direction of the vehicle; On the other side of the crank axis direction, a select device for switching the range of the automatic transmission and an oil cooler for cooling the oil of the automatic transmission are arranged, and the automatic transmission and the select device are connected to each other by a select cable. In the oil cooler piping structure of the automatic transmission, wherein the automatic transmission and the oil cooler are connected by an oil cooler pipe, an upper surface of an oil pan attached to a lower part of the cylinder block of the engine and one end of the cylinder block. Side is attached, the middle part is above the oil pan, and the other end is attached to the frame of the vehicle. The select cable and the oil cooler pipe are inserted into and provided in a space formed between the lower surface of the attached engine mount bracket, and the oil cooler pipe inserted into the space is mounted on the upper surface of the oil pan. An oil cooler piping structure for an automatic transmission, wherein a cable holder for holding the select cable is provided on an oil cooler piping mounted on an upper surface of the oil pan. 2. The oil cooler pipe according to claim 1, wherein the cable holding tool is fixed to the oil cooler pipe so as to hold the select cable in an assembled state at a position above the oil cooler pipe. 2. The oil cooler piping structure of the automatic transmission according to 1.