JP6922626B2 - Support structure of transfer device - Google Patents

Description

The present invention relates to a support structure for a transfer device mounted on a vehicle.

The vehicle is provided with a transfer device for distributing the power of the transmission to the front and rear wheels, and the transfer device is supported by the vehicle body. As a support structure of a conventional transfer device, the one described in Patent Document 1 is known.

In the support structure of the transfer device described in Patent Document 1, a pair of side frames extending in the front-rear direction of the vehicle are connected by a cross member. The cross member has two cross member portions arranged in the front-rear direction with the center of gravity of the main body portion of the transfer device in between, and the transfer device is supported by the cross member portion.

Japanese Unexamined Patent Publication No. 8-164761

In such a conventional transfer device support structure, since the transfer device is only supported by two cross member portions, the vibration of the transfer device is easily transmitted to the side frame via the cross member. .. As a result, the ride quality of the vehicle may deteriorate.

The present invention has been made by paying attention to the above-mentioned problems, and is a transfer device capable of suppressing the vibration of the transfer device from being transmitted to the side members and preventing the ride comfort of the vehicle from deteriorating. It is intended to provide a support structure.

The present invention is installed behind the transmission, the power of the transmission can be transmitted via the input propeller shaft, and the power transmitted from the transmission is transmitted to the front differential device via the front propeller shaft. It is a support structure of the transfer device that is possible and can be transmitted to the rear differential device via the rear propeller shaft, and connects the right side member and the left side member extending in the front-rear direction of the vehicle apart from the width direction of the vehicle. The cross member has a front right end portion and a front left end portion connected to the right side member and the left side side member, respectively, and the vehicle is viewed from the front right end portion and the front left end portion in a plan view of the vehicle. The front cross member that bends backward toward the central axis in the front-rear direction and the rear right end and the rear left end that are located behind the front cross member are connected to the right side member and the left side member, respectively. It is provided with a rear cross member that bends forward from the rear right end portion and the rear left end portion toward the central axis in the front-rear direction of the vehicle in the plan view of the vehicle, and the front side in the plan view of the vehicle. The tip of the front cross member in the bending direction and the tip of the rear cross member in the bending direction face each other in the front-rear direction of the vehicle so that the cross member and the rear cross member form an X shape. The transfer device is installed so that its front end is located in front of the rear right end and the rear left end, and the transfer device is provided with the right side member and the right side member via the right bracket and the left bracket. It is characterized in that it is supported by the left side member.

As described above, according to the present invention, it is possible to suppress the vibration of the transfer device from being transmitted to the side members, and it is possible to prevent the ride quality of the vehicle from deteriorating.

FIG. 1 is a plan view of a vehicle provided with a support structure for a transfer device according to an embodiment of the present invention. FIG. 2 is a cross-sectional view taken along the line II-II of FIG. FIG. 3 is a cross-sectional view taken along the line III-III in FIG. FIG. 4 is a cross-sectional view taken along the line in the IV-IV direction of FIG. FIG. 5 is a plan view of the mount mounting bracket and its surroundings in the support structure of the transfer device according to the embodiment of the present invention.

The support structure of the transfer device according to the embodiment of the present invention is installed behind the transmission, the power of the transmission can be transmitted via the input propeller shaft, and the power transmitted from the transmission is transmitted to the front side. It is a support structure of the transfer device that can be transmitted to the front differential device via the propeller shaft and can be transmitted to the rear differential device via the rear propeller shaft. It has a cross member that connects the extending right side member and the left side member, and the cross member has the front right end and the front left end connected to the right side member and the left side member, respectively, and the front right end and the front right end in the plan view of the vehicle. The front cross member that bends backward from the front left end toward the central axis in the front-rear direction of the vehicle, and the rear right end and rear left end that are located behind the front cross member are the right side member and the left side member, respectively. It is equipped with a rear cross member that bends forward from the rear right end and the rear left end toward the central axis in the front-rear direction of the vehicle in the plan view of the vehicle. The tip of the front cross member in the bending direction and the tip of the rear cross member in the bending direction face each other in the front-rear direction of the vehicle so that the member and the rear cross member form an X shape. The front end is installed so as to be located anterior to the rear right end and the rear left end, and the transfer device is supported by the right side member and the left side member via the right bracket and the left bracket.
As a result, it is possible to suppress the vibration of the transfer device from being transmitted to the side members, and it is possible to prevent the ride quality of the vehicle from deteriorating.

Hereinafter, the support structure of the transfer device according to the embodiment of the present invention will be described with reference to the drawings.
1 to 5 are views showing a support structure of a transfer device according to an embodiment of the present invention. In FIGS. 1 to 5, the top, bottom, front, back, left, and right directions are the directions seen by the driver in the vehicle.

First, the configuration will be described.
In FIG. 1, the vehicle 1 includes a right side member 2 and a left side member 3, and the right side member 2 and the left side member 3 are separated from each other in the width direction of the vehicle 1 (hereinafter, simply referred to as the vehicle width direction). It is installed at a position and extends in the front-rear direction of the vehicle 1.

The right side member 2 and the left side member 3 are connected by a front cross member 5 and a center cross member 6 installed behind the front cross member 5, and the front cross member 5 and the center cross member 6 are connected in the vehicle width direction. Extends to.

The center cross member 6 of this embodiment constitutes the cross member of the present invention. The right side member 2, the left side member 3, the front cross member 5, and the center cross member 6 constitute the vehicle body of the vehicle 1.

The vehicle 1 is provided with a power unit 10. The power unit 10 includes an engine 11 which is an internal combustion engine, and a transmission 12 which shifts and outputs a rotational speed of a crankshaft (not shown) of the engine 11.

The engine 11 is installed vertically so that the rotation center axis 11C of the crankshaft extends in the front-rear direction of the vehicle 1. The transmission 12 includes a shift-and-select shaft 12A, and the shift range of the transmission 12 is switched by rotating the shift-and-select shaft 12A around an axis and moving it in the axial direction. The shift-and-select shaft 12A is provided inside the transmission 12, and in FIG. 1, the rear end portion of the shift-and-select shaft 12A protruding from the transmission 12 is shown.

The front end portion of the propeller shaft 13 is connected to the transmission 12 (see FIG. 2), and the propeller shaft 13 extends from the transmission 12 to the rear in the front-rear direction of the vehicle 1. A transfer device 14 is installed behind the transmission 12, and the rear end portion of the propeller shaft 13 is connected to the front side of the left side portion 14B of the transfer device 14.

As a result, the power of the transmission 12 is transmitted to the transfer device 14 via the propeller shaft 13. The propeller shaft 13 of this embodiment constitutes the input propeller shaft of the present invention.

In the transfer device 14, the rear end portion of the front propeller shaft 15 is connected to the front side of the right side portion 14A, and the front end portion of the rear propeller shaft 16 is connected to the rear side of the right side portion 14A. In the transfer device 14, the left side portion 14B is installed coaxially with the rotation center shaft 11C, and the right side portion 14A is installed biased toward the right side member 2 side with respect to the rotation center shaft 11C.

The front propeller shaft 15 extends forward from the transfer device 14 in the front-rear direction of the vehicle 1 toward the side in the vehicle width direction of the power unit 10.

The front end of the front propeller shaft 15 is connected to the front differential device 17. The front differential device 17 transmits the power of the front propeller shaft 15 to the front wheels (not shown) via the left and right drive shafts on the front side (not shown) so as to be differentially rotatable.

The rear end of the rear propeller shaft 16 is connected to the rear differential device 18. The rear differential device 18 transmits the power of the rear propeller shaft 16 to the rear wheels (not shown) via the left and right drive shafts on the rear side (not shown) so as to be differentially rotatable.

The transfer device 14 constantly transmits the power transmitted from the propeller shaft 13 to the rear propeller shaft 16.
Further, the transfer device 14 is provided with a switching lever 19 (see FIG. 2), and when the driver operates the switching lever 19 to select either two-wheel drive or four-wheel drive, the transfer device 14 is provided. The device 14 switches the transmission path to either a two-wheel drive state in which the power transmitted from the propeller shaft 13 is not transmitted to the front propeller shaft 15 or a four-wheel drive state in which the power is transmitted.

As a result, the vehicle 1 is subjected to part-time 4WD in which the vehicle 1 is switched to two-wheel drive or four-wheel drive. The transfer device 14 may be driven so as to be a power transmission path for driving the vehicle 1 with four wheels at all times, that is, to be full-time 4WD.

The front propeller shaft 15 of the present embodiment constitutes the front propeller shaft of the present invention, and the front differential device 17 constitutes the front differential device of the present invention. The rear propeller shaft 16 constitutes the rear propeller shaft of the present invention, and the rear differential device 18 constitutes the rear differential device of the present invention.

In FIG. 5, the center cross member 6 has a front cross member 24 and a rear cross member 25, and the front cross member 24 and the rear cross member 25 are made of a circular pipe material. The center cross member 6 of this embodiment constitutes the cross member of the present invention.

In the front cross member 24, the front right end portion 24a is connected to the right side member 2 and the front left end portion 24b is connected to the left side member 3. It extends diagonally rearward from 24b toward the rotation center axis 11C, and the central portion is bent rearward.

In the rear cross member 25, the rear right end portion 25a is connected to the right side member 2 and the rear left end portion 25b is connected to the left side member 3, and the rear right end portion 25a is connected to the left side member 3 in the plan view of the vehicle 1. And, it extends diagonally forward from the rear left end portion 25b toward the rotation center axis 11C, and the central portion is bent forward. The rotation central axis 11C of the present embodiment is the same axis as the central axis in the front-rear direction of the vehicle, and constitutes the central axis in the front-rear direction of the vehicle of the present invention.

In the plan view of the vehicle 1, the front cross member 24 and the rear cross member 25 have an X-shaped tip portion 24A (hereinafter referred to as a bending tip portion 24A) and a rear cross member 24 in the bending direction of the front cross member 24. The tip portion 25A of the member 25 in the bending direction (hereinafter referred to as the bending tip portion 25A) faces the front-rear direction of the vehicle 1.

The bent tip portion 24A of the front cross member 24 of this embodiment is a portion of the front cross member 24 that overlaps the rotation center axis 11C. The bent tip portion 25A of the rear cross member 25 is a portion of the rear cross member 25 that overlaps the rotation center axis 11C.

A mount mounting bracket 26 is attached to the bent tip 24A and the bent tip 25A by welding or the like, and the mount mounting bracket 26 straddles the bent tip 24A and 25A so as to straddle the bent tip 24A and 25A on the front cross member 24 and the rear side. It is attached to the cross member 25. The mount mounting bracket 26 has a smooth mount mounting seat surface 26A for mounting a mounting member described later (see FIG. 2).

In FIG. 2, a mount bracket 28 is attached to the rear end of the transmission 12, and is attached to the mount attachment bracket 26 via the mount bracket 28 and the mount member 27.

The mount member 27 has a lower bracket 27A, an upper bracket 27B, and an elastic body 27C.

The lower bracket 27A is attached to the mount mounting seat surface 26A of the mount mounting bracket 26 by a bolt (not shown), and the upper bracket 27B is attached to the mount bracket 28 by a bolt (not shown). The elastic body 27C connects the lower bracket 27A and the upper bracket 27B, and is made of an elastically deformable material such as rubber.

The engine 11 is supported by a right side member 2 by a mounting member (not shown) on the right side and by a mounting member 3 not shown on the left side, and the mounting member is provided with an elastic body such as rubber (not shown). ing.

As a result, the power unit 10 is elastically supported by the right side member 2 and the left side member 3 via the mount member, and elastically supported by the center cross member 6 via the mount member 27.

In FIG. 1, the vehicle 1 is provided with a reinforcing bracket 32. The reinforcing bracket 32 connects the portion of the rear cross member 25 located between the rotation center shaft 11C and the right side member 2 and the right side member 2.

The transfer device 14 is installed so as to be biased toward the right side member 2 side with respect to the transmission 12, and the front end portion 14a thereof is located in front of the rear right end portion 25a and the rear left end portion 25b.

The right side mount bracket 33 is connected to the right side surface of the transfer device 14 in the vehicle width direction, and the left side mount bracket 34 is connected to the left side surface of the transfer device 14 in the vehicle width direction. The right side mount bracket 33 of the present embodiment constitutes the right side bracket of the present invention, and the left side mount bracket 34 constitutes the left side bracket of the present invention.

The right side mount bracket 33 has a shape extending in the front-rear direction. The rear end of the right mount bracket 33 is connected to the right side member 2, and the front end of the right mount bracket 33 is connected to the reinforcing bracket 32. The central portion of the right side mount bracket 33 in the front-rear direction is connected to the transfer device 14.

The reinforcing bracket 32 connects the right side member 2 and the rear cross member 25 on the front side of the rear cross member 25. As a result, the connection point 32A on the front side of the right side mount bracket 33 is connected to the reinforcing bracket 32.

The left mount bracket 34 has a shape extending in the left-right direction. The right end of the left mount bracket 34 is connected to the transfer device 14, and the left end of the left mount bracket 34 is connected to the left side member 3.

As a result, the transfer device 14 is supported by the right side member 2 and the left side member 3 via the right side mount bracket 33 and the left side mount bracket 34. The reinforcing bracket 32 of this embodiment constitutes the connecting member of the present invention.

In FIG. 4, from the right side member 2 on the side where the transfer device 14 is biased to the bent tip portion 25A of the rear cross member 25, a step portion 25B that bends like a crank is formed on the rear cross member 25.

In FIGS. 4 and 5, the stepped portion 25B includes a bent portion 25d bent downward from the high portion 25c on the bent tip portion 25A side and a low portion 25e extending from the lower end portion of the bent portion 25d toward the right side member 2. Have.

In FIG. 5, the lower portion 25e has a mounting surface 25f, and the mounting surface 25f is provided closer to the bent portion 25d with respect to the right side member 2. The left end of the reinforcing bracket 32 is connected to the mounting surface 25f by welding or the like.

In FIGS. 1 and 2, the vehicle 1 is provided with a shift device 51. The shift device 51 includes a shift lever 52, and the shift lever 52 is operated by the driver.

The shift lever 52 is connected to the shift and select shaft 12A by a link member 53. A connecting portion 53A connected to the rear end portion of the shift and select shaft 12A is provided at the front end portion of the link member 53.

The link member 53 rotates around the axis and moves in the axial direction in conjunction with the movement of the shift lever 52, and rotates the shift and select shaft 12A about the axis and moves in the axial direction.

The shift device 51 has a shift case 54, and the shift case 54 has an accommodating portion 54A accommodating the link member 53 and a projecting portion 54B protruding from the accommodating portion 54A so as to sandwich the connecting portion 53A. And holds the link member 53.

The front end portion of the protruding portion 54B is swingably supported by the transmission 12 by the mounting boss portion 54b, and the shift case 54 swings vertically with respect to the transmission 12 with the mounting boss portion 54b as a fulcrum. Is.

A pin portion 54a is provided at the rear end portion of the accommodating portion 54A (see FIG. 2), and the pin portion 54a is slidably supported by an elastic body (not shown) on the boss portion 55A of the shift bracket 55. There is.

In FIG. 2, the shift bracket 55 is attached to the mount mounting bracket 26. The shift bracket 55 extends so as to rise upward while tilting backward from the bottom.

The shift bracket 55 is installed side by side with the mount member 27 in the front-rear direction of the vehicle 1, and the shift case 54 is installed above the mount member 27 and the mount bracket 28.

The boss portion 55A is provided above the shift bracket 55, and the pin portion 54a slides in the front-rear direction with respect to the boss portion 55A, so that the shift case 54 moves in the front-rear direction of the vehicle 1 and the boss portion 55A. It swings around the axis of the pin portion 54a with respect to 55A.

As described above, the shift device 51 of the present embodiment is displaceably supported by the mount mounting bracket 26 via the shift bracket 55.

According to the support structure of the transfer device 14 of this embodiment, the center cross member 6 includes a front cross member 24 and a rear cross member 25. In the front cross member 24, the front right end portion 24a is connected to the right side member 2 and the front left end portion 24b is connected to the left side member 3, and the front right end portion 24a and the front left end portion 24b are connected in a plan view of the vehicle 1. It extends diagonally rearward toward the rotation center axis 11C, and the central portion is bent rearward.

The rear cross member 25 is located behind the front cross member 24, and the rear right end portion 25a is connected to the right side member 2 and the rear left end portion 25b is connected to the left side member 3. In a plan view, the posterior right end 25a and the posterior left end 25b extend diagonally forward toward the rotation center axis 11C, and the central portion is bent forward.

The bent tip 24A of the front cross member 24 and the bent tip 25A of the rear cross member 25 are in front of and behind the vehicle 1 so that the front cross member 24 and the rear cross member 25 have an X shape in a plan view of the vehicle 1. Facing in the direction.

Further, the mount mounting bracket 26 is attached to the front cross member 24 and the rear cross member 25 so as to straddle the bent tip portions 24A and 25A of the front cross member 24 and the rear cross member 25.

As a result, the front cross member 24 connected to the right side member 2 and the left side member 3 and the rear cross member 25 connected to the right side member 2 and the left side member 3 are further connected by the mount mounting bracket 26.

Therefore, a center cross member 6 in which the front cross member 24 and the rear cross member 25 are integrated is constructed, and the front cross member 24, the rear cross member 25, the right side member 2, and the left side member 3 are combined. The connecting portion is shared as the connecting portion as the center cross member 6, and the rigidity of the center cross member 6 can be improved.

Further, since the mount mounting bracket 26 comes into contact with the bent tip portions 24A and 25A of the front cross member 24 and the rear cross member 25, it can be installed with a wider contact range than the case where the mount mounting bracket 26 contacts only the straight portion. Rigidity can be improved.

In addition to this, according to the support structure of the transfer device 14 of the present embodiment, the transfer device 14 is installed so that the front end portion 14a is located in front of the rear right end portion 25a and the rear left end portion 25b. , It is supported by the right side member 2 and the left side member 3 via the right side mount bracket 33 and the left side mount bracket 34.

That is, in the plan view of the vehicle 1, the rear cross member 25 extends diagonally forward from the rear right end portion 25a and the rear left end portion 25b toward the rotation center axis 11C, and the central portion is bent forward.

As a result, a triangular space having the rear rear end portion 25a, the rear left end portion 25b, and the bending tip portion 25A as vertices is formed behind the rear cross member 25. The front end portion 14a of the transfer device 14 can be installed in this triangular space.

Therefore, the right side member 2 and the left side are located closer to the front end portion of the right side mount bracket 33 and the left end portion of the left side mount bracket 34 by the rear right end portion 25a and the rear left end portion 25b of the highly rigid center cross member 6. It can be supported by the side member 3.

Therefore, the support rigidity of the transfer device 14 can be improved. In addition to this, as shown by the arrow a in FIG. 1, the vibration of the transfer device 14 is transmitted from the right mount bracket 33 to the reinforcing bracket 32 and then dispersed to the rear cross member 25 and the right side member 2. It can be transmitted and can be transmitted from the left side mount bracket 34 to the left side member 3.

After that, as shown by the arrow b, the vibration transmitted to the rear cross member 25 can be dispersed and transmitted to the front cross member 24, the right side member 2, and the left side member 3.

Further, as shown by the arrow c, the vibration transmitted to the front cross member 24 can be dispersed to the right side member 2 and the left side member 3.

Then, as shown by the arrow c, the vibration dispersed in the rear cross member 25 is dispersed and transmitted to the front cross member 24 via the bending tip 25A and the bending tip 24A, and then the right side member 2 And can be distributed and transmitted to the left side member 3.

Therefore, it is possible to suppress the vibration of the transfer device 14 from being concentrated and transmitted to specific parts of the right side member 2 and the left side member 3, and it is possible to reduce the magnitude of the vibration and make it difficult for the occupant to feel the vibration. Therefore, it is possible to prevent the riding comfort of the vehicle 1 from deteriorating.

Further, according to the support structure of the transfer device 14 of the present embodiment, the transfer device 14 is installed so as to be biased toward the right side member 2 with respect to the transmission 12.

Further, in the transfer device 14, the propeller shaft 13 is connected to the front side of the left side portion 14B, the rear end portion of the front propeller shaft 15 is connected to the front side of the right side portion 14A, and the rear propeller is further connected to the rear side of the right side portion 14A. The front end of the shaft 16 is connected.

Therefore, the vibration of the right side portion 14A of the transfer device 14 to which the front propeller shaft 15 and the rear propeller shaft 16 are connected is larger than the vibration of the left side portion 14B of the transfer device 14 to which the propeller shaft 13 is connected.

Further, the vibration of the front side portion of the transfer device 14 to which the propeller shaft 13 and the front propeller shaft 15 are connected is larger than the vibration of the rear side portion to which the rear propeller shaft 16 is connected.

On the other hand, in the support structure of the transfer device 14 of the present embodiment, the connection point 32A on the front side of the right mount bracket 33 connects the right side member 2 and the rear cross member 25 on the front side of the rear cross member 25. It is connected to the reinforcing bracket 32.

As a result, the rigidity of the rear cross member 25 and the right side member 2 can be increased by the reinforcing bracket 32, and the front connecting point 32A of the right side member 2 can be connected to the reinforcing bracket 32.

Therefore, the support rigidity of the transfer device 14 can be further improved. As a result, it is possible to more effectively suppress the vibration of the transfer device 14 being transmitted to the right side member 2 and the left side member 3.

Further, according to the support structure of the transfer device 14 of the present embodiment, the transfer device 14 bends like a crank from the right side member 2 on the side where the transfer device 14 is biased to the bending tip portion 25A of the rear cross member 25. A step portion 25B is formed.

As a result, the rigidity of the rear cross member 25 can be increased between the right side member 2 and the bent tip portion 25A by forming the step portion 25B that bends like a crank on the rear cross member 25.

Further, since the transfer device 14 is connected to the reinforcing bracket 32 via the right mount bracket 33 between the right side member 2 having high rigidity and the bent tip portion 25A, the support rigidity of the transfer device 14 can be further improved. .. Therefore, it is possible to more effectively suppress the vibration of the transfer device 14 being transmitted to the right side member 2 and the left side member 3.

Further, according to the support structure of the transfer device 14 of the present embodiment, the stepped portion 25B extends from the bent portion 25d bent downward from the high portion 25c and from the lower end portion of the bent portion 25d toward the right side member 2. The lower portion 25e is provided with the reinforcing bracket 32, and the lower portion 25e has a mounting surface 25f on which the reinforcing bracket 32 is mounted.

In addition to this, the mounting surface 25f is provided closer to the bent portion 25d with respect to the right side member 2.

As a result, the joint strength of the reinforcing bracket 32 can be improved by connecting the reinforcing bracket 32 to the vicinity of the lower end of the bent portion 25d rather than the straight portion, that is, the portion at the end of bending of the bent portion 25d.

Therefore, the right side mount bracket 33 can be supported by the reinforcing bracket 32 with high rigidity, and as a result, the support rigidity of the transfer device 14 can be increased. As a result, it is possible to more effectively suppress the vibration of the transfer device 14 being transmitted to the right side member 2 and the left side member 3.

Further, according to the vehicle 1 of the present embodiment, since the shift bracket 55 is attached to the mount mounting bracket 26, the mount member from the transmission 12 via the mount bracket 28 due to the vibration of the engine 11 or the vibration of the vehicle 1. The vibration and load transmitted to 27 can be distributed from the bending tip portions 24A and 25A to the front right end portions 24a and 25a and the front left end portions 24b and 25b and transmitted to the right side member 2 and the left side member 3.

Therefore, it is possible to prevent the vibration of the power unit 10 from concentrating on a specific portion of the vehicle 1 and prevent the vibration of the power unit 10 from being transmitted to the vehicle body. As a result, the vibration can be less likely to be felt by the occupant, and the ride quality of the occupant can be kept good.

Further, according to the vehicle 1 of the present embodiment, an elastically deformable mount member 27 is attached to the mount attachment bracket 26, and the power unit 10 and the mount member 27 are connected via the mount bracket 28.

Therefore, the transmission 12 can be stably supported by the highly rigid mount mounting bracket 26 via the mount bracket 28 and the mount member 27.

Therefore, when the vibration is transmitted from the transmission 12 to the mount member 27 via the mount bracket 28 due to the vibration of the engine 11 or the vibration of the vehicle 1, the vibration is attenuated by the mount member 27 and the center cloth is transmitted from the mount mounting bracket 26. The vibration transmitted to the right side members 2 and 3 via the member 6 can be suppressed.

Although the transfer device 14 of this embodiment is biased toward the right side member 2 with respect to the transmission 12, it may be biased toward the left side member 3 with respect to the transmission 12. In this case, a left mount bracket having the same shape as the right mount bracket 33 is provided on the left side surface of the transfer device 14 in the vehicle width direction.

Further, on the front side of the rear cross member 25, the left side member 3 and the rear cross member 25 are connected by the reinforcing bracket 32, and the connecting point on the front side of the left mount bracket having the same shape as the right mount bracket 33 is connected to the reinforcing bracket. It may be connected to 32.

When the transfer device 14 is biased toward the left side member 3 with respect to the transmission 12, the transfer device 14 is rearward at the bent tip portion 25A of the rear cross member 25 from the left side member 3 on the biased side. A step portion that bends like a crank may be formed on the side cross member 25.

Further, although the reinforcing bracket 32 of this embodiment connects the rear cross member 25 and the right side member 2, the front cross member 24 and the right side member 2 may be connected.

Further, when the transfer device 14 is biased toward the left side member 3 with respect to the transmission 12, the reinforcing bracket 32 may connect the rear cross member 25 and the left side member 3. The front cross member 24 and the left side member 3 may be connected.

Although the embodiments of the present invention have been disclosed, it is clear that some skilled in the art can make changes without departing from the scope of the present invention. All such modifications and equivalents are intended to be included in the following claims.

1 ... Vehicle, 2 ... Right side member, 3 ... Left side member, 6 ... Center cross member (cross member), 11C ... Rotation center axis (center axis in the front-rear direction of the vehicle) 12 ... Transmission, 13 ... Propeller shaft (input propeller shaft), 14 ... Transfer device, 14a ... Front end (front end of transfer device), 15 ... Front propeller shaft (front propeller) Shaft), 16 ... rear propeller shaft (rear propeller shaft), 17 ... front differential device (front differential device), 18 ... rear differential device (rear differential device), 24 ... front cross Member, 24A ... Tip in bending direction, 24a ... Front right end, 24b ... Front left end, 25 ... Rear cross member, 25A ... Tip in bending direction, 25B .. Stepped portion, 25a ... rear right end, 25b ... rear left end, 25c ... high, 25d ... bent, 25e ... low, 25f ... mounting surface, 32 ... Reinforcing bracket (connecting member), 32A ... Connecting point (connecting point on the front side of the connecting member), 33 ... Right side mount bracket (right side bracket), 34 ... Left side mount bracket (left side bracket)

Claims (4)

Installed behind the transmission, the power of the transmission can be transmitted via the input propeller shaft, and the power transmitted from the transmission can be transmitted to the front differential device via the front propeller shaft. It is a support structure of the transfer device that can be transmitted to the rear differential device via the rear propeller shaft.
It has a cross member that connects the right side member and the left side member that extend in the front-rear direction of the vehicle apart from the width direction of the vehicle.
In the cross member, the front right end and the front left end are connected to the right side member and the left side member, respectively, and from the front right end and the front left end to the central axis in the front-rear direction of the vehicle in the plan view of the vehicle. With the front cross member that bends backward toward
The rear right end and the rear left end are connected to the right side member and the left side member, respectively, located behind the front cross member, and the rear right end and the rear left end are viewed in a plan view of the vehicle. It is equipped with a rear cross member that bends forward toward the central axis in the front-rear direction of the vehicle.
The front and rear ends of the front cross member in the bending direction and the tip of the rear cross member in the bending direction are front and rear of the vehicle so that the front cross member and the rear cross member have an X shape in a plan view of the vehicle. Facing the direction,
The transfer device is installed so that its front end is located in front of the rear right end and the rear left end.
A support structure for a transfer device, wherein the transfer device is supported by the right side member and the left side member via a right bracket and a left bracket. The transfer device is installed biased to the right side member side or the left side member side with respect to the transmission,
The right bracket is provided on the right side surface of the transfer device in the vehicle width direction.
The left bracket is provided on the left side surface of the transfer device in the vehicle width direction.
Connection point of the front of the right bracket and the left bracket is provided on a side where the transfer device is biased, the connecting and said right side member and the rear-side cross member or the front cross member in front of the rear cross member connecting member, or, according to claim 1, characterized in that it is connected to a connecting member for connecting the rear said and left side member side cross member or the front cross member in front of the rear cross member Support structure of the transfer device. Between the right side member on the side where the transfer device is biased and the tip of the rear cross member in the bending direction, or between the left side member and the tip of the rear cross member in the bending direction, the rear The support structure for a transfer device according to claim 2, wherein a step portion that bends like a crank is formed on the side cross member. The stepped portion has a bent portion which is bent downward from the higher portion, extending from the lower end portion of the bent portion toward the right side member or the left side member, a low portion having a mounting surface on which the connecting member is attached Prepared
The support structure for a transfer device according to claim 3, wherein the mounting surface is provided closer to the bent portion with respect to the right side member or the left side member.

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