JP2019085984A - Fuel pipe protection structure - Google Patents

Abstract

To provide a fuel pipe protection structure which can protect a fuel pipe extending in a vertical direction of a vehicle from a case member when an impact is applied to the vehicle from the front side.SOLUTION: A plate-like protector 21 covering a head part 14a of a bolt 14A from the rear side is attached to a transmission case 11 by a bolt 20. The protector 21 has: a first plate part 22 which is formed in a vertically long shape so as to extend in a vertical direction and covers the rear side of the head part 14a; a second plate part 23 which extends forward further than the first plate part 22 and is fixed to the cover member 13 by the bolt 20; and a curve part 24 which connects the first plate part 22 to the second plate part 23.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a fuel pipe protection structure.

  A fuel pipe protection structure for protecting a fuel pipe mounted on a vehicle, the fuel pipe having one end connected to the internal combustion engine and the other end disposed at a position closer to the passenger compartment than the internal combustion engine, and the other end of the fuel pipe Patent Document 1 discloses a feed hose connected to the fuel hose and a protection member for protecting a connection unit that connects the fuel pipe and the feed hose.

  The protective member has a base member attached to the dashboard upper and a cover member covering the connection unit from the internal combustion engine side. The cover member is provided with a guide portion which displaces the coupling unit in a direction to avoid pinching by the internal combustion engine with plastic deformation when the internal combustion engine relatively moves toward the compartment when the vehicle collides.

JP, 2015-78605, A

  However, in such a conventional fuel pipe protection structure, it is necessary to be able to move the fuel pipe relative to the vehicle body. On the other hand, since the fuel piping extending in the vertical direction of the vehicle is difficult to move in the width direction of the vehicle, the fuel piping extending even in the vertical direction of the vehicle is protected even if the conventional fuel piping protection structure is applied. It is difficult to do.

  The present invention has been made focusing on the above circumstances, and has a fuel piping protection structure capable of protecting fuel piping extending in the vertical direction of the vehicle from a case member when an impact is applied to the vehicle from the front. It is intended to be provided.

  The present invention is a protection structure of a fuel pipe which is installed at the rear of the case member so as to face the corner of the case member and extends in the vertical direction of the vehicle, and which covers the corner from the rear Is attached to the case member by a fixing tool, and the protector is formed to be vertically long so as to extend in the vertical direction of the vehicle, and a first plate portion covering the rear of the corner portion, and the first plate portion And a second plate portion which extends to the front and is fixed to the case member by the fixing tool, and a curved portion connecting the first plate portion and the second plate portion. A first curved portion curved in a U-shape from the end of the first plate portion in the width direction of the vehicle, and a front curved from the front side of the first curved portion, the second plate portion And a second curved portion to which Characterized in that it.

  As described above, according to the present invention described above, when an impact is applied to the vehicle from the front, fuel piping extending in the vertical direction of the vehicle can be protected from the case member.

FIG. 1 is a plan view of a vehicle provided with a fuel pipe protection structure according to an embodiment of the present invention. FIG. 2 is a left side view of a vehicle provided with a fuel pipe protection structure according to an embodiment of the present invention. FIG. 3 is a plan view of a vehicle provided with a fuel pipe protection structure according to an embodiment of the present invention, and is a plan view of the vehicle in which the periphery of the fuel pipe is enlarged. FIG. 4 is a left side view of a vehicle provided with a fuel pipe protection structure according to an embodiment of the present invention, and is a left side view of the vehicle in which the periphery of the fuel pipe is enlarged. FIG. 5 is an enlarged left side view of a rear upper portion of a transmission provided with a fuel pipe protection structure according to an embodiment of the present invention, showing a state in which the protector is removed. FIG. 6 is an enlarged plan view of the rear left side of the transmission provided with the fuel pipe protection structure according to the embodiment of the present invention, and shows a state in which the protector is removed. FIG. 7 is a left side view of a rear upper portion of a transmission provided with a fuel pipe protection structure according to an embodiment of the present invention. FIG. 8 is a perspective view of a protector used in a fuel pipe protection structure according to one embodiment of the present invention. FIG. 9 is a front view of a protector used for a fuel pipe protection structure according to an embodiment of the present invention. FIG. 10 is a left side view of a protector used for a fuel pipe protection structure according to an embodiment of the present invention. FIG. 11 is a left side view of a vehicle provided with a fuel pipe protection structure according to an embodiment of the present invention, showing a state in which the protector collides with the fuel pipe and is deformed.

  A fuel pipe protection structure according to an embodiment of the present invention is a fuel pipe protection structure which is installed behind a case member so as to face a corner of the case member and extends in the vertical direction of the vehicle. A plate-like protector that covers the corner from the rear is attached to the case member by a fastener, and the protector is formed to be vertically elongated to extend in the vertical direction of the vehicle, and a first plate that covers the rear of the corner A second plate portion extending forward of the first plate portion and fixed to the case member by the fixing tool, and a curved portion connecting the first plate portion and the second plate portion, The curved portion is curved forward from the front side of the first curved portion and the first curved portion curved in a U-shape from the vehicle width direction end of the first plate portion, and the second plate portion is connected And a second curved portion.

  Thus, when an impact is applied to the vehicle from the front, the fuel piping extending in the vertical direction of the vehicle can be protected from the case member.

Hereinafter, a fuel pipe protection structure according to an embodiment of the present invention will be described with reference to the drawings.
1 to 11 are views showing a fuel pipe protecting structure according to an embodiment of the present invention. In FIGS. 1 to 11, when the forward, backward, backward, and forward directions of the vehicle are front and backward, the width direction of the vehicle is horizontal and the height direction of the vehicle is vertical. .

First, the configuration will be described.
In FIG. 1, the vehicle 1 is provided with a left side member 2 and a right side member not shown, and the left side member 2 and the right side member are in the width direction of the vehicle 1 (hereinafter referred to as the vehicle width direction). It is separated and extends in the front-rear direction.

  A transmission 3 is installed between the left side member 2 and the right side member. The transmission 3 is connected to an internal combustion engine (not shown), and shifts and outputs the rotational speed of the internal combustion engine. The transmission 3 is elastically supported by the left side member 2 by a mounting device (not shown).

  A front wheel house 4 is connected to the left side member 2. A left front wheel (not shown) is provided below the front wheel house 4, and the front wheel house 4 secures a space for the left front wheel to rotate above the left front wheel.

  A dash panel 5 is provided at the rear of the transmission 3. An engine room 6 surrounded by the left side member 2, the right side member, and the dash panel 5 is formed in front of the dash panel 5. At the rear of the dash panel 5 is formed a passenger compartment 7 in which a passenger gets on. The transmission 3 and the internal combustion engine are installed in an engine room 6.

  The transmission 3 has a transmission case 11. The transmission case 11 includes a case body 12 having an open left end, and a cover member 13 attached to the left end of the case body 12 so as to close the opening of the case body 12. And the case body 12 by bolts 14 (see FIG. 2). The transmission case 11 constitutes a case member of the present invention.

  In FIG. 2 and FIG. 5, when the cover member 13 is viewed in the vehicle width direction, the cover member 13 has an arc-shaped flange portion 13A at the upper part thereof. Among the plurality of bolts 14, the bolt 14A is installed at the rear of the flange portion 13A.

  The bolt 14A has a screw-formed shaft member (not shown) penetrating through the cover member 13 and fitted in the screw hole of the case body 12, and the head 14a is outward in the vehicle width direction from the left side surface of the cover member 13. Projected into

  Similarly to the bolt 14A, the bolt 14 also has a screw-formed shaft member (not shown) penetrated through the cover member 13 and fitted in the screw hole of the case main body 12, and the head is external from the left side surface of the cover member 13. Projected into

  The head 14a of the bolt 14A is formed in a polygonal shape as viewed in the vehicle width direction. The bolt 14A of this embodiment constitutes the fastener of the present invention, and the head 14a of the bolt 14A constitutes a corner of the transmission case 11. The bolt 14 also has a head of the same shape as the head 14a, but the head of the bolt 14 is not labeled.

  Here, the corners of the transmission case 11, including the head 14a of the bolt 14 and the flange portion 13A around it, partially project rearward from the transmission case 11 or outward in the vehicle width direction. Point to the site.

  In FIGS. 1 and 2, fuel pipes 15 and 16 are provided at the front of the dash panel 5 at the rear of the transmission 3 and at the front of the passenger compartment 7. The fuel pipes 15, 16 connect a fuel tank (not shown) installed at the rear of the vehicle 1 and the internal combustion engine, and supply the fuel stored in the fuel tank to the injector (not shown) of the internal combustion engine.

  In FIG. 2, the fuel pipes 15, 16 extend from the rear of the vehicle 1 through the lower side of the dash panel 5 to the front of the dash panel 5 and face the head 14a (see FIG. 3) at the front of the dash panel 5. And extend vertically. Furthermore, the fuel pipes 15, 16 extend from the upper end in the direction extending on the front side of the dash panel 5 toward the internal combustion engine.

  Here, portions of the fuel pipes 15, 16 which are installed at the rear of the transmission case 11 so as to face the head 14a and which extend in the vertical direction are referred to as pipe portions 15A, 16A (see FIG. 3). The piping portions 15A, 16A are fixed to the vertical wall of the left side member 2 and the front surface of the dash panel 5 by the fixing member 5A.

  In FIGS. 2 to 4, a plate-like protector 21 is attached to the transmission case 11. The protector 21 covers the head 14 a and a part of the rear surface 13 a of the flange portion 13 A from the rear (see FIG. 7), and is fixed to the cover member 13 by bolts 20.

  In FIG. 8, the protector 21 has a first plate portion 22, a second plate portion 23 and a bending portion 24.

  The first plate portion 22 is formed to be vertically elongated so as to extend in the vertical direction, and covers the head portion 14a and a part of the rear surface 13a of the flange portion 13A from the rear (see FIG. 7).

  The second plate portion 23 extends forward of the first plate portion 22 and is fixed to the cover member 13 by bolts 20. The bolt 20 of the present embodiment constitutes a fixture of the present invention.

  In FIG. 3, the bending portion 24 has a first bending portion 24A and a second bending portion 24B which connect the first plate portion 22 and the second plate portion 23. The first bending portion 24A is curved in a U-shape from the end (the left end in the vehicle width direction) 22a of the first plate portion 22 in the vehicle width direction. The second bending portion 24B is bent forward from the front side of the first bending portion 24A, and is connected to the second plate portion 23.

  In FIGS. 8 and 10, the second plate portion 23 has an opening 23A and a through hole 23B. The bolt 20 is penetrated in the through hole 23B.

  In FIG. 3, FIG. 5 and FIG. 6, the first boss 13B and the second boss 13C are formed on the left side surface of the flange 13A of the cover member 13. The boss portion 13C of 2 is installed in front of the bolt 14A.

  A bolt 20 penetrating through the through hole 23B of the second plate portion 23 is fastened to the first boss portion 13B. Thereby, the protector 21 is fixed to the cover member 13.

  As shown in FIG. 4, the second boss 13 </ b> C is provided above the bolt 20 and is inserted into the opening 23 </ b> A. As a result, movement of the protector 21 about the bolt 20 is restricted.

  In FIG. 7, the upper edges 23 a and 23 b of the second plate portion 23 are located above the head 14 a in the vertical direction.

  In FIG. 10, the second plate portion 23 is formed with a longitudinally extending notch 23c extending in the longitudinal direction. The vertically oriented notch 23c extends downward from the upper edge 23b located at a height position lower than the upper edge 23a, and a part thereof overlaps the head 14a in the vehicle width direction (see FIG. 7).

  In FIG. 8, the first plate portion 22 has a main body portion 22A, an extension portion 22B, and a connecting portion 22C.

  In FIGS. 7 and 9, the main body 22 </ b> A extends above the bolt 20 in the vertical direction, and the extension 22 </ b> B extends below the bolt 20.

  The connection portion 22C connects the main body portion 22A and the extension portion 22B, and the main body portion 22A, the extension portion 22B and the connection portion 22C are integrally formed. In FIG. 9, the range of the main body portion 22A, the extension portion 22B and the connecting portion 22C in the first plate portion 22 is shown.

  In FIG. 8, a lateral notch 22 b extending in the vehicle width direction is formed in the extension 22 B, and the upper edge of the inner periphery of the notch 22 b has the same height as the lower edge 23 d of the second plate portion 23. It is formed in position (see FIG. 9).

Next, the operation will be described.
When an impact is applied to the vehicle 1 from the front during a frontal collision of the vehicle 1 or the like, the transmission 3 moves rearward toward the dash panel 5 (see FIG. 11).

  The piping portions 15A, 16A are disposed at the rear of the transmission case 11 so as to face the head 14a of the transmission case 11, and extend in the vertical direction. For this reason, there is a possibility that piping parts 15A and 16A may collide locally with head 14a by transmission 3 which moves to the back.

  According to the protective structure of the fuel pipes 15 and 16 of this embodiment, the plate-like protector 21 which covers the head 14 a of the bolt 14 A from the rear is attached to the transmission case 11 by the bolt 20.

  The protector 21 is vertically elongated so as to extend in the vertical direction, and extends forward of the first plate portion 22 covering the rear of the head portion 14 a and the first plate portion 22, and is fixed to the cover member 13 by bolts 20. And a curved portion 24 connecting the first plate portion 22 and the second plate portion 23.

  The curved portion 24 curves from the front side of the first curved portion 24A to the front from the first curved portion 24A that curves in a U-shape from the end 22a in the vehicle width direction of the first plate portion 22; And a second curved portion 24B to which the plate portion 23 is connected.

  Thus, the rear of the head portion 14a can be covered by the first plate portion 22, and the fuel pipes 15, 16 can be made to collide with the first plate portion 22 when the transmission 3 moves rearward. . For this reason, it can prevent that piping parts 15A and 16A contact the head 14a locally.

  Furthermore, when the first plate portion 22 collides with the piping portions 15A and 16A, the first curved portion 24A contracts in the front-rear direction and at the same time, the upper side of the first plate portion 22 with the head 14a as a boundary. The main body 22A and the lower extension 22B fall forward.

  Thereby, the impact when the pipe portions 15A and 16A collide with the first plate portion 22 can be alleviated by deforming the first plate portion 22.

  As a result, when an impact is applied to the vehicle 1 from the front, local deformation of the pipe portions 15A and 16A extending in the vertical direction can be prevented, and the pipe portions 15A and 16A can be protected from the transmission case 11.

  Further, according to the protective structure of the fuel pipes 15, 16 of the present embodiment, the second plate portion 23 has the opening 23A and the through hole 23B through which the bolt 20 is penetrated.

  In addition to this, the flange portion 13A of the cover member 13 constituting the transmission case 11 includes a first boss 13B to which the bolt 20 is fastened and a second boss 13C which is inserted into the opening 23A. Have.

  As a result, the protector 21 is fixed to the cover member 13 by the single bolt 20, and when the piping parts 15A and 16A collide with the protector 21, the protector 21 can be easily deformed around the bolt 20.

  In addition to this, when the protector 21 is deformed about the bolt 20, excessive deformation of the protector 21 can be restricted by the second boss 13C inserted into the opening 23A. The synergetic effect optimizes the amount of deformation of the protector 21 to more effectively prevent local deformation of the piping portions 15A and 16A, and more effectively protect the piping portions 15A and 16A from the transmission case 11 it can.

  Further, according to the protective structure of the fuel pipes 15, 16 of the present embodiment, the upper edge 23a of the second plate portion 23 is positioned above the head 14a in the vertical direction.

  In addition to this, a vertically extending notch 23c extending in the longitudinal direction is formed in the second plate portion 23, and the vertically extending notch 23c extends downward from the upper edge 23a of the second plate portion 23. , Partially overlap the head 14a in the vehicle width direction.

  Thereby, when the piping parts 15A and 16A collide with the protector 21, the portion of the first plate part 22 around the head part 14a is easily deformed to the front side centering on the bolt 20 by the longitudinally facing notch 23c. it can.

  Therefore, the impact when the pipe parts 15A and 16A collide with the first plate part 22 can be more effectively mitigated by the deformation of the first plate part 22, and the pipe parts 15A and 16A are locally deformed. Can be more effectively prevented. All of the notches 23c in the longitudinal direction may overlap the head 14a in the vehicle width direction.

  Further, according to the protective structure of the fuel pipes 15 and 16 of the present embodiment, the first plate portion 22 includes the main body portion 22A extending upward than the bolt 20 in the vertical direction and the extension portion extending downward below the bolt 20. A lateral notch 22b extending in the vehicle width direction is formed in the extension 22B.

  Thereby, the range in which the first plate portion 22 contacts the fuel pipes 15 and 16 can be expanded by the extension portion 22B. Further, as shown in FIG. 11, when the pipe parts 15A and 16A collide with the protector 21, the extension part 22B can be deformed to the front side centering on the bolt 20.

  For this reason, the first plate portion 22 can more effectively reduce the impact when the piping portions 15A and 16A collide with the first plate portion 22. As a result, local deformation of the piping portions 15A and 16A can be prevented more effectively.

  Further, according to the protective structure of the fuel pipes 15 and 16 of the present embodiment, when the transmission case 11 is viewed from the width direction of the vehicle, the cover member 13 of the transmission case 11 has the arc-shaped flange portion 13A. .

  In addition to this, a bolt 14A is installed at the rear of the flange portion 13A, and the bolt 14A has a head 14a forming a corner.

  As described above, even when the fastener installed on the flange portion 13A of the transmission case 11 has the head portion 14a forming the corner portion, when the vehicle 1 receives an impact from the front, the piping portion The 15A and 16A can collide with the protector 21.

  Therefore, even when the bolt 14A is installed at the rear of the flange portion 13A, it is possible to prevent the piping portions 15A and 16A from colliding with the head portion 14a and locally deforming.

  Further, since the rear surface 13a of the arc-shaped flange portion 13A is covered by the first plate portion 22, when the piping portions 15A and 16A collide with the protector 21, the first plate portion 22 is formed into the arc of the flange portion 13A. It can be deformed along.

  Therefore, the protector 21 can be easily deformed, and the impact when the piping portions 15A and 16A collide with the first plate portion 22 can be more effectively alleviated by the first plate portion 22. In addition, you may provide two or more bolts in the rear part of 13 A of flange parts as a fastener.

  While embodiments of the present invention have been disclosed, it will be apparent to those skilled in the art that changes may be made without departing from the scope of the present invention. All such modifications and equivalents are intended to be included in the following claims.

  DESCRIPTION OF SYMBOLS 1 ... Vehicle, 3 ... Transmission, 11 ... Transmission case (case member), 13A ... Flange part, 13B ... 1st boss | hub part, 13C ... 2nd boss | hub Sections 14A: bolts (fasteners) 14a: heads (corners) 15, 16: fuel piping 20: bolts (fasteners) 21: protectors 22 .. First plate portion, 22A: main body portion, 22B: extension portion, 22a: vehicle width direction end portion (width direction end portion of the first plate portion of the vehicle), 23: Second plate portion 23A: opening portion 23B: through hole 23b: upper edge (upper edge of second plate portion) 24: curved portion 24A: first Of the second part, 24B ... second part

Claims (5)

The fuel pipe protection structure is disposed behind the case member so as to face the corner of the case member and extends in the vertical direction of the vehicle.
A plate-like protector that covers the corner from behind is attached to the case member by a fixture;
The protector is formed to be vertically long so as to extend in the vertical direction of the vehicle, and a first plate portion that covers the rear of the corner portion;
A second plate portion extending forward of the first plate portion and fixed to the case member by the fixing device;
A curved portion connecting the first plate portion and the second plate portion;
The curved portion is curved forward from a front side of the first curved portion, and a first curved portion curved in a U-shape from an end of the first plate portion in the width direction of the vehicle, the second curved portion And a second curved portion connected to the plate portion. The second plate portion has an opening and a through hole through which the fixing tool passes.
The fuel pipe according to claim 1, wherein the case member has a first boss portion to which the fixing tool is fastened, and a second boss portion inserted into the opening. Protection structure. The upper edge of the second plate portion is located above the corner in the vertical direction of the vehicle,
A vertically extending notch is formed in the second plate portion, and extends longitudinally.
The longitudinal direction notch extends downward from the upper edge of the second plate portion, and at least a portion thereof overlaps the corner in the width direction of the vehicle. Fuel piping protection structure. The first plate portion has a main body portion extending upward than the fixing tool in the vertical direction of the vehicle, and an extension portion extending downward than the fixing tool.
The fuel pipe protection structure according to any one of claims 1 to 3, wherein a lateral notch extending in the width direction of the vehicle is formed in the extension portion. When the case member is viewed in the width direction of the vehicle, the case member has an arc-shaped flange portion,
At least one of the fasteners is installed at the rear of the flange portion;
The fuel pipe protecting structure according to any one of claims 1 to 4, wherein the fastener has the corner.

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