JP5655577B2 - Rear body structure of the vehicle - Google Patents

Description

  The present invention relates to a vehicle rear body structure including a flexible fuel hose fitted and connected to a downstream end of a fuel pipe, and more particularly to a vehicle rear portion including a guide member for restricting the movement of the fuel hose to the rear of the vehicle body. It relates to the body structure.

Conventionally, a rear body structure of a vehicle includes a kick-up portion that is stepped upward and inclined at a rear position of the floor panel, and a fuel tank that is installed below the floor panel and at an intermediate position in the vehicle width direction of the kick-up portion. And a spare tire pan formed by recessing the floor panel downward at the rear side in the longitudinal direction of the vehicle body spaced a predetermined distance from the fuel tank.
The fuel tank is disposed between the pair of front and rear cross members in a plan view, and is suspended and supported on the vehicle body side, for example, the pair of front and rear cross members via a tank band.

  An inlet pipe for injecting fuel and a breather pipe for preventing blowback during fuel injection are connected to the fuel tank. The inlet pipe has a metal inlet pipe extending from a fuel filler port formed in the vertical middle part of the left and right rear pillars to a position near the fuel tank between the fuel tank and the spare tire pan, and a downstream end of the inlet pipe. It is formed by a flexible inlet hose that is fitted and connected to the rear side wall of the fuel tank. The breather pipe with a smaller diameter than the inlet pipe is fitted and connected to the metal breather pipe extending from the position near the fuel inlet of the inlet pipe to the position near the fuel tank between the inlet pipe and the spare tire pan, and the downstream end of the breather pipe And a flexible breather hose connected to the rear side wall of the fuel tank. Because the flexible inlet hose and breather hose are used, when the fuel tank moves relative to the vehicle body, it can absorb the displacement amount of the fuel tank and ensure the ease of attaching and detaching the fuel tank to improve the maintenance. ing.

  The fuel pipe protection structure described in Patent Document 1 includes a fuel tank fixed to a side surface of a chassis frame via a tank band, two fuel pipes protruding from the side surface of the chassis frame, and a fuel tank. And a fuel pipe. The protector includes a base end portion fixed to the chassis frame, an defining plate portion bent from the base end portion, and both left and right sides of the defining plate portion. It is formed by the flange plate part formed by bending. In this fuel pipe protection structure, when an external force acts on the vehicle and the fuel tank moves relative to the fuel pipe side with respect to the vehicle body, the protector comes into contact with the chassis frame and between the fuel tank and the fuel pipe. A space is formed, and the fuel pipe can be prevented from being crushed.

  The flow-path piping protection structure described in Patent Document 2 includes a tank-side inlet pipe connected to a fuel tank, a fuel-supply side inlet pipe connected to a fuel supply port on the side of the vehicle, and a tank-side inlet pipe and a fuel supply side. A plastically deformable hose for connecting to the inlet pipe is provided, and a pin formed so as to protrude from the vehicle body side is provided at a side position of the hose in which the fuel inlet side inlet pipe is inserted. In this flow path piping protection structure, when an external force acting on the front side of the vehicle body acts, the pin comes into contact with the fuel filler inlet side inlet piping, and the amount of deformation toward the front side of the vehicle body can be suppressed.

Japanese Patent Laid-Open No. 11-324842 Japanese Patent Laid-Open No. 2006-219062

  The rear body structure of the vehicle is configured to reduce the impact load acting on the occupant by buckling or compressively deforming the body frame when an external force forward of the vehicle body acts on the vehicle. Therefore, when an external force in front of the vehicle body acts on the vehicle, the fuel filler port formed in the rear pillar or the like moves forward of the vehicle body due to deformation of the vehicle body member, and accordingly, fuel piping (inlet piping and breather piping) Move to the front of the car. On the other hand, in synchronism with the action of the external force, an inertial force caused by the external force acts on the fuel tank, so that the fuel tank moves to the rear of the vehicle body and the fuel hoses (inlet hose and breather hose) move to the rear of the vehicle body.

  That is, when an external force acting on the front of the vehicle acts on the vehicle, the movement of the fuel hose to the rear of the vehicle and the deformation of the vehicle, particularly the deformation of the vehicle body member such as the spare tire pan, etc. occur simultaneously. There is a risk that a fuel hose, particularly a breather hose having a smaller diameter and lower strength than the inlet hose, may be damaged by being caught in a body member such as a spare tire pan in which the hose is deformed. In addition, the fuel tank that has moved to the rear of the vehicle body due to the inertial force after the external force is applied is subjected to a tensile load by the tank band, so that the fuel hose is turned back to the front of the vehicle body while being sandwiched between the vehicle body members. There is also a possibility that the fitting connection between the fuel pipe and the fuel pipe is broken.

  The fuel pipe protection structure described in Patent Document 1 prevents a fuel hose (fuel pipe) or the like from being caught in a ladder frame type vehicle such as a truck in which a fuel tank is disposed on the side of the chassis frame. can do. However, when the protective structure of Patent Document 1 is applied to an ordinary monocoque frame type vehicle, the vehicle body member itself against which the protector abuts is deformed, so that it is difficult to prevent the fuel hose from being caught by the vehicle body member. In addition, when the fuel tank is turned back toward the front of the vehicle body with the fuel hose sandwiched between the vehicle body members, it is difficult to prevent disconnection of the fuel hose and the fuel pipe.

  The flow path pipe protection structure described in Patent Document 2 can suppress the amount of deformation of the fuel pipe (fuel supply port side inlet pipe) forward of the vehicle body when an external force is applied to the vehicle forward of the vehicle body. . However, since the fuel hose (tank side inlet piping) moves to the rear of the vehicle body as the fuel tank moves, it is difficult to prevent the fuel hose from being caught by deformation of the vehicle body member. When the vehicle swings back toward the front of the vehicle body, it is impossible to prevent disconnection between the fuel hose and the fuel pipe.

  The object of the present invention is to prevent damage to the fuel hose due to deformation of the vehicle body member when an external force acting on the front of the vehicle body acts on the vehicle, and when the fuel tank is turned back after the external force action, It is an object of the present invention to provide a rear vehicle body structure that can prevent disconnection.

  The rear vehicle body structure of the vehicle according to claim 1 is formed by recessing the floor panel downward at a fuel tank installed at a lower position of the floor panel, and at a rear position in the vehicle longitudinal direction separated from the fuel tank by a predetermined distance. A flexible fuel hose fitted and connected to a downstream end of a fuel pipe for connecting the fuel pipe to the fuel tank. The downstream end of the fuel pipe is formed to face in the vehicle width direction between the fuel tank and the recessed portion, and the fuel hose moves forward in the vehicle width direction toward the front of the vehicle body. A guide member that is provided at least at the rear of the vehicle body between the fuel hose and the recessed portion and that moves toward the front of the vehicle body inward in the vehicle width direction. We are a symptom.

  In this vehicle rear body structure, since the guide member is provided at least behind the vehicle body of the curved portion of the fuel hose, when an external force acting forward of the vehicle body acts on the vehicle, the fuel tank is moved rearward by the inertial force. Even if it moves, the fuel hose can be prevented from moving to the rear of the vehicle body, and the fuel hose can be prevented from being caught in a deformed spare tire pan or the like.

The invention of claim 2 is characterized in that, in the invention of claim 1, the front end portion of the guide member is formed behind the vehicle body at a predetermined distance from the front end portion of the curved portion.
A third aspect of the invention is characterized in that, in the first or second aspect of the invention, the guide member is curved forward in the vehicle width direction along the curved portion.

According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the fuel hose is formed to be movable in the longitudinal direction of the vehicle body with respect to the guide member.
According to a fifth aspect of the present invention, in any one of the first to fourth aspects of the present invention, the guide member is provided only on the rear side of the curved portion of the vehicle body.

  According to the first aspect of the present invention, when an external force forward of the vehicle body acts on the vehicle, even if the fuel tank moves to the rear of the vehicle body due to inertial force, the fuel hose can be prevented from moving to the rear of the vehicle body, Since the fuel hose can be prevented from being caught in a deformed spare tire pan or the like, damage to the fuel hose can be prevented. Further, since the fuel hose can be prevented from being caught in the spare tire pan or the like, when the fuel tank is turned back after the external force is applied, the disconnection of the fuel hose and the fuel pipe and the fuel hose and the fuel tank can be prevented. Moreover, the downstream end of the fuel pipe is formed so as to face the vehicle width direction between the fuel tank and the recessed portion, and the guide member is formed so as to move forward in the vehicle width direction. Inertial force can be applied in the fitting direction between the fuel hose and the fuel pipe, and disconnection can be reliably prevented.

According to the invention of claim 2, when the movement of the fuel tank to the rear of the vehicle body due to the inertia force is large, the front end portion of the guide member corresponding to the front position of the vehicle body rather than the deformation region of the recessed portion is connected to the fuel and the fuel tank. Since it can bulge between tanks, it can prevent reliably that a fuel hose is pinched | interposed into a spare tire pan.
According to the invention of claim 3, the curved portion of the fuel hose can be efficiently deformed by the guide member so as to face the vehicle width direction, and the curved portion can be deformed into a substantially S shape.

According to the invention of claim 4, when the movement of the fuel tank in the longitudinal direction of the vehicle body due to the inertia force is small, disconnection can be prevented without hindering the movement of the fuel hose in the longitudinal direction of the vehicle body.
According to the fifth aspect of the present invention, when an external force acting on the rear of the vehicle body acts on the vehicle, the guide member does not exist on the front side of the fuel hose even if the fuel tank moves forward of the vehicle body due to the inertial force. It is possible to prevent disconnection without hindering movement of the hose toward the front of the vehicle body and without causing tensile stress at the connection portion between the fuel tank and the fuel hose. In addition, since the guide member can be reduced in size, the manufacturing cost can be reduced.

1 is a perspective view of a rear body structure of a vehicle according to an embodiment of the present invention. It is the figure which looked at the rear part body structure from the lower part. It is the III-III sectional view taken on the line of FIG. It is a perspective view of a guide member. FIG. 4 is a main part equivalent view of FIG. 3 when an external force in front of the vehicle body acts on the vehicle.

  Hereinafter, modes for carrying out the present invention will be described based on examples. In the following description, the front-rear direction of the vehicle is the front-rear direction, and the left-right side where the vehicle fuel filler opening is installed is the right side.

Embodiment 1 of the present invention will be described below with reference to FIGS.
The rear body structure of the vehicle of this embodiment includes a rear floor panel 1 (floor panel), a fuel tank 2, a spare tire pan 3 (recessed portion), an inlet pipe 20, a breather pipe 30, a guide member 40, and the like. Is provided.

  As shown in FIGS. 1 to 3, the rear floor panel 1 is connected to the rear end of a front floor panel (not shown) and is spanned across a pair of left and right rear side frames 4 in the vehicle width direction. It forms the bottom wall of the passenger compartment. The rear floor panel 1 is formed of a metal plate material, and includes a kick-up portion 5, a spare tire pan 3, and the like. The kick-up portion 5 is formed in a step-up manner on the front portion of the rear floor panel 1 so as to be inclined upward, and a rear seat (not shown) is installed above the kick-up portion 5. Spare tire pan 3 is provided on the rear side of kick-up portion 5 and is formed by recessing rear floor panel 1 downward.

  As shown in FIGS. 1 and 2, the pair of left and right rear side frames 4 are formed in a closed cross section extending in the front-rear direction. The front ends of the pair of left and right rear side frames 4 are respectively connected to the rear ends of the pair of left and right side sills 6. The rear side frame 4, the side sill 6, and the front side frame (not shown) connected to the side sill 6 are formed so as to extend in the front-rear direction over substantially the entire length of the vehicle body. Each of the pair of left and right side sills 6 is provided on the outer side in the vehicle width direction with respect to the pair of left and right rear side frames 4, and has a closed cross section extending in the front-rear direction. The upper portions of the pair of left and right side sills 6 are connected to the lower portions of front pillars, center pillars, and rear pillars (not shown) each having a closed cross section extending vertically.

  As shown in FIGS. 2 and 3, the connecting portion between the pair of left and right rear side frames 4 and the pair of left and right side sills 6 extends between the pair of left and right side sills 6 at the front position of the kick-up portion 5. A cross member 7 (No. 3 cross member) connected in the vehicle width direction is installed. The cross member 7 is fixed to the rear surface of the rear floor panel 1 and forms a rectangular closed cross section extending in the vehicle width direction in cooperation with the front portion of the rear floor panel 1. A bracket 10 is fixed to the cross member 7 in the middle and the lower position in the vehicle width direction.

  As shown in FIGS. 1 to 3, a cross member 8 (No. 4 cross member) connected in the vehicle width direction across a pair of left and right rear side frames 4 at the rear and upper position of the kick-up portion 5. ) Is installed. The cross member 8 is fixed to the rear surface of the rear floor panel 1 and forms a rectangular closed cross section extending in the vehicle width direction in cooperation with the middle portion of the rear floor panel 1 in the front-rear direction. Flange portions 11a and 11b are respectively formed on the left and right outer sides and the lower side of the cross member 8 in the vehicle width direction. A reinforcing member 9 that connects the cross member 8 and the spare tire pan 3 is installed behind the cross member 8 in the vehicle body. The reinforcing member 9 forms a rectangular closed cross section extending in the vehicle width direction in cooperation with the rear surface of the rear floor panel 1, the rear side wall portion of the cross member 8, and the front portion of the spare tire pan 3.

  2 and 3, the fuel tank 2 is located below the kick-up portion 5 and in a space surrounded by the cross members 7 and 8 and the pair of left and right rear side frames 4 in plan view. It is arranged. The fuel tank 2 is divided into two parts, for example, synthetic resin, and is formed in a substantially flat shape in a side view by overlapping and joining the joining flanges 2a of the upper surface portion and the lower surface portion. The upper surface 2 c of the fuel tank 2 is formed in a substantially flat shape over the entire length in the front-rear direction, and is installed at a height position lower than the lower surface of the cross member 8. The joining flange 2a of the fuel tank 2 is installed at substantially the same height as the cross member 7, and the front end of the joining flange 2a is arranged in the vicinity of the rear side of the cross member 7. The lower surface 2d of the fuel tank 2 is formed in a substantially flat shape over the entire length in the front-rear direction, and is set at substantially the same height as the front floor panel. The lower surface 2d of the fuel tank 2 is covered with, for example, an insulator made of aluminum.

  As shown in FIGS. 1 to 3, the fuel tank 2 includes a fuel pump 12 and two left and right tank bands 13 a and 13 b. The fuel pump 12 is attached to a substantially central portion of the upper surface side portion of the fuel tank 2 in plan view. The two left and right tank bands 13a and 13b are made of, for example, metal and are formed in a band shape.

  One end of the tank band 13a is fixed to the bracket 10 via a bolt 14c, and the other end is fixed to the left flange portion 11a via a bolt 14a, so that the tank band 13a is fixed between the bracket 10 and the left flange portion 11a. Is stretched. One end of the tank band 13b is fixed to the bracket 10 via a bolt 14c, and the other end is fixed to the right flange portion 11b via a bolt 14b, so that the tank band 13b is interposed between the bracket 10 and the right flange portion 11b. Is stretched. As a result, the fuel tank 2 is supported suspended from the vehicle body between the cross members 7 and 8 by the tank bands 13a and 13b.

  As shown in FIGS. 1 to 3, a spare tire pan 3 for accommodating a spare tire is provided behind the cross member 8 of the rear floor panel 1. The spare tire pan 3 is formed by recessing the rear floor panel 1 downward in a partial spherical shape at a position closer to the right side in the vehicle width direction. The lower surface 3 a of the spare tire pan 3 is installed at a height position substantially the same as that of the cross member 7 and is installed at a height position lower than the upper surface 2 c of the fuel tank 2. The front end 3b of the spare tire pan 3 is disposed at a position spaced apart from the rear side wall 2b of the fuel tank 2 by a predetermined distance. Therefore, a space S is formed between the front end 3 b of the spare tire pan 3 and the rear side wall 2 b of the fuel tank 2.

  The inlet pipe 20 is a piping path for injecting fuel into the fuel tank 2 from a fuel filler port 15 formed in the middle part of the right rear pillar in the vertical direction, and includes an inlet pipe 21, an inlet hose 22, a clip 23, and the like. ing.

As shown in FIGS. 1 and 2, the inlet pipe 21 is made of, for example, metal, and includes a vertical pipe portion 21a, an inclined pipe portion 21b, and a curved pipe portion 21c.
The vertical pipe portion 21 a is formed so that the upstream end is connected to the fuel filler opening 15 and extends vertically downward to a position near the side sill 6 along the inside of the rear pillar. The inclined pipe portion 21b has an upstream end connected to a downstream end of the vertical pipe portion 21a, and moves forward in the vehicle width direction to the front and rear direction position corresponding to the front end portion 3b of the spare tire pan 3 in plan view. Is formed. The curved pipe portion 21c is curved so that the upstream end is connected to the downstream end of the inclined pipe portion 21b and the outer portion of the spare tire pan 3 is extended to the space S. The downstream end of the curved pipe portion 21c is arranged in a substantially intermediate position between the front end portion 3b of the spare tire pan 3 and the rear side wall portion 2b of the fuel tank 2 in the space portion S, and its opening faces the rear side frame 4 on the left side. Is formed.

  As shown in FIGS. 1 to 3, the inlet hose 22 is made of, for example, synthetic rubber, and the outer periphery thereof is covered with a flexible insulator. The inlet hose 22 includes a curved portion 22a that moves forward in the vehicle width direction from the upstream end to the downstream end in plan view. The downstream end of the inlet hose 22 is connected to the rear side wall 2b at a substantially center position in the vehicle width direction of the rear side wall 2b of the fuel tank 2 and an upper position. The upstream end of the inlet hose 22 is externally connected to the downstream end of the curved piping portion 21 c of the inlet piping 21, and the connecting portion is fastened to the curved piping portion 21 c by a clip 23.

  As shown in FIGS. 1 and 2, the breather pipe 30 is a piping path that discharges the vapor in the fuel tank 2 to the outside in order to prevent blowback when fuel is injected, and a breather pipe 31 (fuel pipe) and A breather hose 32 (fuel hose), a clip 33 and the like are provided.

The breather pipe 31 is made of, for example, metal, and includes a vertical pipe part 31a, an inclined pipe part 31b, and a curved pipe part 31c.
The vertical pipe portion 31a has an upstream end connected to the rear upper position of the vertical pipe portion 21a, and vertically follows the rear of the vertical pipe portion 21a along the vertical pipe portion 21a to the position near the side sill 6 along the rear pillar. It is formed to extend. The inclined pipe part 31 b is connected to the downstream end of the vertical pipe part 31 a at the upstream end, and the rear side of the inclined pipe part 21 b extends inward in the vehicle width direction to the front-rear direction position corresponding to the front end part 3 b of the spare tire pan 3 in plan view. It is formed so as to move forward of the vehicle body. The curved pipe portion 31c is curved so that the upstream end is connected to the downstream end of the inclined pipe portion 31b and the rear side of the curved pipe portion 21c extends to the space portion S along the outer shape of the spare tire pan 3. The downstream end of the curved pipe portion 31c is disposed in a substantially intermediate position between the downstream end of the curved pipe portion 21c and the rear side wall portion 2b of the fuel tank 2 in the space S, and the opening thereof faces the left rear side frame 4. Is formed.

  As shown in FIGS. 1 to 3, the breather hose 32 is made of, for example, synthetic rubber, and the outer periphery of the intermediate part thereof is covered with a flexible insulator 34. The breather hose 32 has a curved portion 32a (curved portion) that moves forward from the upstream end toward the downstream end along the inlet hose 22 along the inlet hose 22 from the upstream end toward the downstream side in the vehicle width direction in plan view. I have. The downstream end of the breather hose 32 is connected to the rear side wall 2b so as to be adjacent to the left side of the downstream end of the inlet hose 22 at a substantially center position in the vehicle width direction of the rear side wall 2b of the fuel tank 2 and at an upper position. The upstream end of the breather hose 32 is externally connected to the downstream end of the curved piping portion 31 c of the breather piping 31 at a position behind the upstream end of the inlet hose 22, and the connecting portion is fastened to the curved piping portion 31 c by the clip 33. Yes.

The curved piping portion 21 c and the curved piping portion 31 c are fixed to the lower surface of the cross member 8 by the bracket 16. The bracket 16 is formed by two members, an upper member and a lower member, and these upper and lower members are fixed in a state where the curved pipe portion 21c and the curved pipe portion 31c are sandwiched.
The right end of the bracket 16 is fastened and fixed to the cross member 8 by a fixing bolt 17. Thereby, the front-rear direction distance between the curved pipe part 21c and the curved pipe part 31c can be maintained at a constant interval without being affected by the deformation on the vehicle body side.

  As shown in FIGS. 1 to 3, the guide member 40 is provided at a rear position of the curved portion 32 a in the space S between the breather hose 32 and the spare tire pan 3. As shown in FIG. 4, the guide member 40 is made of, for example, synthetic resin, and the upper wall portion 41, the guide portion 42, and the like are integrally formed. The upper wall portion 41 is formed in a partial annular shape, and has two clip portions 43 and one fixing portion 44. Each clip portion 43 is formed so as to protrude upward when the guide member 40 is attached to the vehicle body, and as shown in FIG. 3, the clip portion 43 is provided so as to be adjacent to the lower wall of the cross member 8 in the vehicle width direction. The hole 8a is formed so that it can be fitted. The fixing portion 44 is formed so that a bolt (not shown) can be inserted, and the fixing portion 44 can be fastened to the lower wall of the cross member 9 by this bolt.

  As shown in FIGS. 1 to 4, the guide portion 42 is bent from the outer peripheral portion of the upper wall portion 41 so as to be orthogonal to the upper wall portion 41. The guide portion 42 extends downward from the upper wall portion 41 to a height position lower than the curved portion 32a in a state where the guide member 40 is attached to the vehicle body. In the present embodiment, the lower end of the guide portion 42 is configured to extend to a height position lower than the lower ends of the curved portions 22a and 32a. Therefore, the guide portion 42 can be interposed between the curved portions 22a and 32a and the front end portion 3b of the spare tire pan 3, and the curved portions 22a and 32a can be prevented from coming into direct contact with the front end portion 3b.

  As shown in FIGS. 2 and 3, the guide portion 42 is spaced apart from the curved portion 32 a by a predetermined distance when the guide member 40 is attached to the vehicle body, and moves forward in the vehicle width direction along the curved portion 32 a. It is formed in a curved shape so as to shift. The front end portion 42 a of the guide portion 42 is formed on an extension line that connects the clip portions 43. The front end portion 42a is formed behind the vehicle body at a predetermined interval from the curved portion 32a when the guide member 40 is attached to the vehicle body. Therefore, the front end portion 42a can be set apart from the rear side wall 2b of the fuel tank 2 rearward by a predetermined distance, and when the fuel tank 2 moves largely rearward of the vehicle body, the curved portion 32a is moved from the deformation region of the spare tire pan 3. Also, it can be deformed into an S shape through a gap between the rear side wall portion 2b corresponding to the front of the vehicle body and the front end portion 42a.

Next, functions and effects of the rear body structure of the vehicle according to this embodiment will be described.
In this rear vehicle body structure, as shown in FIG. 5, the guide portion 42 of the guide member 40 is provided at least on the rear side of the vehicle body of the curved portion 32a of the breather hose 32, so that an external force acting on the front side of the vehicle body acts on the vehicle. When the fuel tank 2 moves to the rear of the vehicle body due to inertial force, the breather hose 32 can be prevented from moving to the rear of the vehicle body, and the breather hose 32 can be prevented from being caught in the deformed spare tire pan 3 or the like. The damage to the breather hose 32 can be prevented. Further, since the breather hose 32 can be prevented from being caught in the spare tire pan 3 or the like, when the fuel tank 2 is turned back after the action of external force, the breather hose 32 and the breather pipe 31 and the breather hose 32 and the fuel tank 2 Can be prevented from being disconnected. In addition, the downstream end of the curved pipe portion 31c is formed so as to face the vehicle width direction in the space S between the rear side wall portion 2b of the fuel tank 2 and the front end portion 3b of the spare tire pan 3, and the guide portion 42 is provided in the vehicle. Since the inner side in the width direction is formed so as to shift to the front of the vehicle body, the inertia force of the fuel tank 2 can be applied in the direction of strengthening the fit between the breather hose 32 and the curved pipe portion 31c. Detachment can be reliably prevented.

  Since the front end portion 42a of the guide portion 42 is formed behind the vehicle body at a predetermined interval from the front end portion of the curved portion 32a, the front end portion of the curved portion 32a is moved when the fuel tank 2 is moved rearward by the inertia force. The breather hose 32 can be swelled in the space S between the front end portion 42a of the guide portion 42 corresponding to the front of the vehicle body and the rear side wall portion 2b of the fuel tank 2 rather than the deformation region of the spare tire pan 3. It can be reliably prevented from being caught in the spare tire pan 3 or the like.

Since the guide portion 42 is curved forward in the vehicle width direction along the curved portion 32a, the curved portion 32a of the breather hose 32 can be efficiently deformed so as to face the vehicle width direction. It can be deformed into an S shape.
The breather hose 32 is formed to be movable at a predetermined distance from the guide portion 42 of the guide member 40 in the longitudinal direction of the vehicle body. Therefore, when the movement of the fuel tank 2 in the longitudinal direction of the vehicle body due to inertia force is small, the guide The member 40 can be prevented from being disconnected without hindering the movement of the breather hose 32 in the longitudinal direction of the vehicle body.

  Since the guide portion 42 of the guide member 40 is provided only on the rear side of the vehicle body of the curved portion 32a, even if the fuel tank 2 moves to the front side of the vehicle body due to inertial force when an external force acting on the vehicle body rearward acts on the vehicle. Since the guide member 40 does not exist on the front side of the breather hose 32, the movement of the breather hose 32 to the front of the vehicle body is not obstructed, and the tensile stress is not generated in the connecting portion between the fuel tank 2 and the breather hose 32. Disconnection can be prevented. In addition, since the guide member 40 can be reduced in size, the manufacturing cost can be reduced.

Next, a modification in which the above embodiment is partially changed will be described.
1) In the above-described embodiment, the example in which the oil filler port is installed on the rear pillar on the right side of the vehicle body has been described. However, it is sufficient that at least the inlet pipe is fixed to the vehicle body member. Alternatively, it can be installed on either the left or right rear fender.

2] In the above-described embodiment, the example in which the breather pipe is disposed at the rear position in the vehicle longitudinal direction of the inlet pipe has been described. However, the inlet pipe may be disposed at the vehicle body rear position of the breather pipe. In this case, the inlet hose can be prevented from being caught in a deformed spare tire pan or the like, and the inlet hose can be prevented from being damaged.

3) In the above embodiment, the example in which the inlet hose and the breather hose are formed of synthetic rubber has been described. However, at least when an external force is applied to the vehicle body, it is sufficient that the moving displacement amount of the fuel tank can be absorbed. Any material may be adopted as long as it has flexibility. Moreover, although the example which provided the curved part in the upstream part of an inlet hose and a breather hose was demonstrated, it is also possible to form the whole inlet hose and a breather hose only by a curved part.

4) In the above embodiment, the guide portion of the guide member is formed in a curved shape so as to move forward in the vehicle width direction and is installed only in the rear of the vehicle body. However, with respect to the outer periphery of the breather hose, A guide portion that covers the entire circumference in a state of being separated by a predetermined distance can be applied, and the guide portions can be formed at the front and rear positions of the breather hose. Further, the guide portion is not limited to a curved shape, and can be formed by a straight portion and a bent portion.
5) In addition, those skilled in the art can implement the present invention in various forms with various modifications without departing from the spirit of the present invention, and the present invention includes such modifications. is there.

  The present invention provides a vehicle rear body structure including a flexible fuel hose fitted and connected to a downstream end of a fuel pipe, and includes a guide member for restricting movement of the fuel hose to the rear of the vehicle body. In contrast, when an external force is applied to the front of the vehicle body, damage to the fuel hose due to deformation of the vehicle body member can be prevented, and when the fuel tank swings back after the external force is applied, the disconnection of the fuel hose can be prevented. it can.

1 Rear Floor Panel 2 Fuel Tank 2b Rear Side Wall 3 Spare Tire Pan 13a, 13b Tank Band
15 Refueling port 20 Inlet pipe 21 Inlet pipe 21a Vertical pipe part 21b Inclined pipe part 21c Curved pipe part 22 Inlet hose 22a Curved part 30 Breather pipe 31 Breather pipe 31a Vertical pipe part 31b Inclined pipe part 31c Curved pipe part 32 Breather hose 32a Curved Part 40 guide member 42 guide part

Claims (5)

A fuel tank installed at a position below the floor panel, a recess formed by recessing the floor panel downward at a rearward position in the longitudinal direction of the vehicle body spaced a predetermined distance from the fuel tank, and an outside of the recess A rear vehicle body structure including a fuel pipe provided at the rear of the vehicle body and a flexible fuel hose fitted and connected to a downstream end of the fuel pipe for connecting the fuel pipe to the fuel tank.
The downstream end of the fuel pipe is formed to face in the vehicle width direction between the fuel tank and the recessed portion,
The fuel hose includes a curved portion that moves toward the front of the vehicle body toward the inner side in the vehicle width direction,
A rear vehicle body structure of a vehicle, characterized in that a guide member is provided between the fuel hose and the recessed portion at least behind the vehicle body of the curved portion and moves forward in the vehicle width direction toward the vehicle body front.   The rear body structure of the vehicle according to claim 1, wherein a front end portion of the guide member is formed behind the vehicle body at a predetermined interval from a front end portion of the curved portion.   3. The rear body structure of the vehicle according to claim 1, wherein the guide member is curved forward toward the vehicle body inward in the vehicle width direction along the curved portion.   The vehicle rear body structure according to any one of claims 1 to 3, wherein the fuel hose is formed to be movable in a longitudinal direction of the vehicle body with respect to the guide member. The rear body structure of a vehicle according to any one of claims 1 to 4, wherein the guide member is provided only on a rear side of the vehicle body of the curved portion.