JP6652114B2 - Vehicle fuel tank mounting structure and vehicle fuel tank mounting method - Google Patents

Description

  The present invention relates to a vehicle fuel tank mounting structure for mounting a fuel tank on a vehicle body, and a vehicle fuel tank mounting method.

  In the fuel tank mounting structure described in Patent Document 1, a flange portion provided on the fuel tank is fastened to the vehicle body, a band is routed below the fuel tank, and both ends of the band are connected to the flange portion. Together with the vehicle body, the fuel tank is attached to the lower surface of the vehicle body. That is, the fuel tank is mounted on the lower surface of the vehicle body by combining the rigid fixing with the flange portion and the band fixing.

JP-A-2006-74331

  However, in the fuel tank mounting structure described in Patent Literature 1, when the flange portion of the fuel tank and the band end are fastened to the vehicle body, the band end is positioned on the flange. Although the work of arranging the fuel tank is required, this work is troublesome for the operator, and thus the workability of mounting the fuel tank is poor.

  Therefore, the present invention can omit the work of aligning the flange portion and the band end portion of the fuel tank with each other when the flange portion and the band end portion are fastened to the vehicle body, improving the workability of mounting the fuel tank and mounting the plurality of parts. It is an object of the present invention to provide a vehicle fuel tank mounting structure and a vehicle fuel tank mounting method that can be assembled without deteriorating positional accuracy.

The present invention relates to a fuel tank disposed on a vehicle body and having a fastening flange portion, a fixing band for fixing the fuel tank to the vehicle body, a fastening end of the fixing band, and the fastening flange of the fuel tank. comprising a stationary part to be fixed to each other in a state where the part was aligned with one another, and a fastening part that said the fastening flange part fixed to one another by said fixed part and said fastening end fastened together to the vehicle body, the fixed The component has a tubular portion through which the fastening component can be inserted, and a component-side flange portion provided on an outer peripheral surface of the tubular portion. A first through hole is formed in the fastening flange portion of the fuel tank. A second through-hole is provided at the fastening end of the fixing band, and the cylindrical portion is inserted into the first through-hole in a state where the second through-hole and the first through-hole are sequentially inserted through the second through-hole. By being fixed, the tightening End is a fuel tank mounting structure for a vehicle sandwiched between the component side flange portion and the fastening flange.

  According to this configuration, the fastening flange portion of the fuel tank and the fastening end portion of the fixing band are fixed to each other in a state where they are aligned with each other by the fixing component, and the fixing flange portion fixed to each other by the fixing component. And the fastening end are jointly fastened to the vehicle body by the fastening parts, so that when the fastening flange and the fastening end are jointly fastened, the work of aligning them with each other can be omitted, and the work of mounting the fuel tank can be omitted. It is possible to improve the mounting properties and to assemble the components without deteriorating the mounting position accuracy.

Further , the fixed component has a tubular portion through which the fastening component can be inserted, and a component-side flange portion provided on an outer peripheral surface of the tubular portion. A first through-hole is provided, a second through-hole is provided at the fastening end of the fixing band, and the second through-hole is inserted through the second through-hole and the first through-hole in this order. by being fixed to the first through hole, said fastening end is sandwiched between the component side flange portion and the fastening flange.

  According to this configuration, the tubular portion of the fixing component is fixed to the first through hole in a state where the cylindrical portion of the fixing band is inserted through the second through hole of the fastening end of the fixing band and the first through hole of the fastening flange portion in order. Since the fastening end is sandwiched between the fastening flange and the component-side flange, the fastening end and the fastening flange are aligned with each other with a simple structure using fixed components. Can be fixed together.

As an aspect of the present invention, the outer shape of the cylindrical portion of the fixed component may be an elliptical cylindrical shape.
According to this configuration, when the fastening flange and the fastening end are fastened to the vehicle body together with the fastening component, the rotation of the tubular portion of the fixed component with respect to the first through hole can be suppressed. Thereby, it is possible to suppress the fixing band from being twisted at the time of joint fastening.

  The first through hole into which the tubular part of the fixed component is inserted may be either an elliptical cylinder or a cylinder. When the first through-hole has an elliptical cylindrical shape, the cylindrical portion of the fixed component and the first through-hole are fitted to each other, whereby rotation of the cylindrical portion of the fixed component with respect to the first through-hole is suppressed. You. When the first through-hole is cylindrical, the frictional force with the inner peripheral surface of the first through-hole concentrates on both ends in the major axis direction of the ellipse on the outer peripheral surface of the cylindrical portion of the fixed component, and the above-mentioned elliptical shape is formed. Since the end portion in the long axis direction is easily caught on the inner peripheral surface of the first through hole, the rotation of the cylindrical portion of the fixed component with respect to the first through hole is suppressed.

  As an aspect of the present invention, a reinforcing member interposed between the fastening end portion and the component-side flange portion is provided, and a contact surface of the reinforcing member with the fixing band is a seating surface of the component-side flange portion. It may be larger than. The bearing surface of the component-side flange portion is a surface of the component-side flange portion facing the reinforcing member.

  According to this configuration, the fastening force acting on the fastening end portion of the fixing band from the fixing component can be dispersed by the reinforcing member, whereby the load on the fixing band can be reduced.

Also, the present invention provides a first through hole provided in a fastening flange portion of a fuel tank disposed on a vehicle body, and a second through hole provided in a fastening end portion of a fixing band for fixing the fuel tank to the vehicle body. The step of fixing the fastening flange portion and the fastening end portion to each other in a state where the fastening flange portion and the fastening end portion are aligned with each other by a fixed component, and the fastening component inserted into the cylindrical portion of the fixed component , said fastening flange portion fixed to one another in a fixed part and said fastening end viewing including the step of co-fastened to the vehicle body, fixing the said fastening flange and the fastening end by the stationary component wherein A step of inserting the cylindrical portion of the fixed component in the order of the second through hole of the fastening end portion and the first through hole of the fastening flange portion, and wherein the cylindrical portion is the first through hole. Fixed to And in the one in which sandwich the fastening end of the fixing band between the component side flange portion of the stationary part provided on an outer peripheral surface of the cylindrical portion, and said fastening flange of the fuel tank This is a vehicle fuel tank mounting method.

  According to this configuration, when the fastening flange and the fastening end are jointly fastened, the work of aligning the fastening flange and the fastening end can be omitted, the workability of mounting the fuel tank is improved, and the mounting position accuracy of a plurality of parts is improved. Can be assembled without deterioration.

  ADVANTAGE OF THE INVENTION According to this invention, when fastening the fastening flange part of a fuel tank and the fastening end part of a fixing band together with a vehicle body, it can omit the operation | work which positions them mutually, and can improve the installation workability of a fuel tank. In addition, the components can be assembled without deteriorating the mounting position accuracy of the plurality of components.

FIG. 2 is a plan view of the lower surface of the vehicle body as viewed from below. FIG. 2 is a perspective view of the lower surface of the vehicle body as viewed obliquely from below. The enlarged view of the range W1 of FIG. AA sectional drawing of FIG. (A) is a perspective view of a fixed component, (b) is a plan view of a fixed component. (A) is a perspective view of a fuel tank to which a fixing band is attached, and (b) is an enlarged view of a range W2 of (a).

An embodiment of the present invention will be described below with reference to the drawings.
A vehicle fuel tank mounting structure 1 according to this embodiment will be described with reference to FIGS. The front, rear, left, right, top, and bottom indicated by arrows in FIG. 1 etc. are the front, rear, and left sides of the vehicle body 3 to which the vehicle fuel tank mounting structure 1 is applied, respectively. , Right side, upper side and lower side.

  As shown in FIGS. 1 and 2, a vehicle fuel tank mounting structure 1 is applied to a vehicle body 3 such as an automobile, and has a structure in which a fuel tank 4 for storing fuel (for example, gasoline) of an automobile engine is mounted on the vehicle body 3. is there. The vehicle fuel tank mounting structure 1 includes a vehicle body 3, a fuel tank 4, a fixing band 6 for fixing the fuel tank 4 to the vehicle body 3, and a state in which the fixing band 6 is aligned with the fuel tank 4 in advance. The vehicle includes a fixing component 7 for attachment, and a fastening component 8 (for example, a bolt) for fastening the fuel tank 4 and the fixing band 6 to the vehicle body 3 together.

  As shown in FIGS. 1 and 2, the fuel tank 4 is disposed, for example, at a predetermined position (for example, a rear portion) on the lower surface of the vehicle body 3. More specifically, a housing recess 31 opened downward is provided at the rear of the lower surface of the vehicle body 3, and the fuel tank 4 is mounted in the housing recess 31. More specifically, a rear portion of the lower surface of the vehicle body 3 includes a center floor panel 32, a rear floor 33, a pair of left and right side rear members 34, and a rear cross member 35.

  The center floor panel 32 is a planar member that forms the floor of the passenger compartment, and is formed, for example, in a substantially rectangular plate shape when viewed from the bottom. At the rear end of the center floor panel 32, a step portion 32a extending upward is formed.

  The rear floor 33 is a planar member that constitutes the floor of a trunk room at the rear of the vehicle body, and is formed, for example, in a substantially rectangular plate shape when viewed from the bottom. The rear floor 33 is provided to extend rearward of the vehicle from the upper end of the step 32a. That is, the rear floor 33 is arranged at a position one step higher than the center floor panel 32 by the step portion 32a.

  The pair of left and right side rear members 34 is a reinforcing member for reinforcing the rear floor 33, and is, for example, a long member having a substantially U-shaped cross section and an open upper surface. A pair of left and right side rear members 34 are provided on the left and right edges of the lower surface of the rear floor 33. The open upper surface of the side rear member 34 is connected to the lower surface of the rear floor 33, and the front end of the side rear member 34 is connected to the end of the rear surface of the step portion 32a in the vehicle width direction.

  The rear cross member 35 is a reinforcing member for reinforcing the rear floor 33, and is, for example, a long member having a substantially U-shaped cross section and an open upper surface. The rear cross member 35 is arranged on the lower surface of the rear floor 33 at a predetermined distance from the stepped portion 32a on the rear side of the vehicle, and is straddled between a pair of left and right side rear members 34. The open upper surface of the rear cross member 35 is connected to the lower surface of the rear floor 33. Both ends in the longitudinal direction of the rear cross member 35 are connected to inner side surfaces of the pair of left and right side rear members 34 in the vehicle width direction.

  The accommodation recess 31 is configured by a portion surrounded by a rear floor 33, a step portion 32a, left and right side rear members 34, and a rear cross member 35. A through-hole 31a (see FIG. 6) through which the fastening component 8 is inserted into a fastening point T (see FIG. 6B) inside or around the housing recess 31 where the below-described fastening flange portion 41 of the fuel tank 4 is fastened. (See (b)). A fastened part 31b (for example, a nut) that can be fastened to the fastening part 8 is fixed to the back side of the fastening part T by welding. The part to be fastened 31b communicates with the through hole 31a.

  In this embodiment, four through holes 31a are provided, two on the front side of the housing recess 31 and two on the rear side. More specifically, two through-holes 31 a are provided at the front edge of the bottom surface of the housing recess 31 (that is, the front edge of the rear floor 33) at intervals from each other in the vehicle width direction. In the periphery (that is, the lower surface of the rear cross member 35), two are provided at intervals from each other along the vehicle width direction.

  The fuel tank 4 is formed of, for example, a resin and is formed in a substantially rectangular container shape that is long in the vehicle width direction with respect to the vehicle front-rear direction in bottom view. The fuel tank 4 includes a fastening flange portion 41 for fixing the fuel tank 4 to the inside of the housing recess 31 (that is, the lower surface of the vehicle body 3).

  The fastening flange portions 41 are provided on the outer peripheral surface of the fuel tank 4 so as to protrude toward the outer peripheral side, and are provided at intervals in the circumferential direction of the fuel tank 4. In this embodiment, a total of two fastening flange portions 41 are provided on the front surface 4c of the fuel tank 4, one at each of both ends in the vehicle width direction, and two at the rear surface 4b of the fuel tank 4 in the vehicle width direction. There are two in total, one on each side, for a total of four. The four fastening flange portions 41 are respectively provided corresponding to the above-described four fastening portions T provided on the lower surface of the vehicle body 3 and are fastened to the above-described four fastening portions T. In this embodiment, as an example, the two fastening flange portions 41 on the front surface 4c of the fuel tank 4 are arranged outside the two fastening flange portions 41 on the rear surface 4b of the fuel tank 4 in the vehicle width direction.

  As shown in FIG. 3, the fastening flange 41 includes a flange main body 41 d projecting substantially horizontally on the outer peripheral side of the fuel tank 4, a support portion 41 b supporting the flange main body 41 d, and a flange main body 41 d. And a pair of left and right side wall portions 41c for reinforcing the portion 41b.

  The flange portion main body 41d is a portion to which the fastening flange portion 41 of the fuel tank 4 is fastened, and is formed in, for example, a rectangular plate shape in plan view. A through hole 42 (see FIG. 4) through which the fixing component 7 is inserted and the fastening component 8 is inserted is provided at the center of the flange portion main body 41d. The shape of the through hole 42 is formed in an elliptical shape in accordance with the shape of an outer peripheral surface 71 a of a cylindrical portion 71 of the fixed component 7 described later (that is, an elliptical cylindrical shape). The support portion 41b extends upward from the outer peripheral surface of the fuel tank 4, and the flange portion main body 41d is provided at the tip thereof as described above.

  The support portion 41b is formed in, for example, an inverted trapezoidal plate shape that becomes narrower from a base end portion connected to the outer peripheral surface of the fuel tank 4 toward a distal end portion provided with the flange portion main body 41d. . The vertical length of the support portion 41b is appropriately designed at the design stage, so that the vertical position of the flange portion main body 41d with respect to the fuel tank 4 is set at an appropriate position. In this embodiment, the vertical position of the flange portion main body 41 d with respect to the fuel tank 4 is arranged at a position deviated toward the upper surface side of the fuel tank 4.

  The pair of left and right side wall portions 41c is provided between each end portion on both sides of the flange portion main body 41d and each end portion on both sides of the support portion 41b. Thereby, the rigidity of the flange portion main body 41d and the support portion 41b is ensured by the side wall portion 41c, and the angle between the flange portion main body 41d and the support portion 41b is maintained at a constant angle.

  The distance between the pair of left and right side wall portions 41c is wider leftward and rightward as the distance from the distal end side of the support portion 41b to the proximal end side (that is, the lower side in the vertical direction). Accordingly, as described later, even if the fixing band 6 is displaced right and left in a state where the fastening end 61 of the fixing band 6 is fastened to the flange body 41d of the fastening flange 41, the fixing band 6 6 is prevented from interfering with the left and right side wall portions 41c.

  As shown in FIGS. 1 and 2, on the surface of the fuel tank 4, concave grooves 43 a and 43 b in which the fixing band 6 is arranged are provided. The concave groove 43a is formed from the rear edge of the lower surface 4a to the lower edge of the rear surface 4b so as to straddle a ridge line R1 which is a boundary between the lower surface 4a and the rear surface 4b of the fuel tank 4. For example, a total of two concave grooves 43a are provided near each end of the ridge line R1 in the longitudinal direction. The concave groove portion 43b is formed from the front edge of the lower surface 4a to the lower edge of the front surface 4c so as to straddle a ridge line R2 which is a boundary between the lower surface 4a and the front surface 4c of the fuel tank 4. For example, a total of two concave grooves 43b are provided near each end in the longitudinal direction of the ridge line R2. That is, a total of four concave grooves 43a and 43b are provided.

  Of the four concave grooves 43a, 43b, two concave grooves 43b, 43a provided at two positions on the left and right front sides of the fuel tank 4 are provided on the left and right front and rear sides of the fuel tank 4 in plan view. It extends along a straight line connecting the two fastening flange portions 41 provided at the location. In the two concave grooves 43b, 43a at the two front left and right front sides, fixing bands 6A arranged over the two fastening flanges 41 at the two front left and right front sides are arranged. . Of the four concave grooves 43a, 43b, two concave grooves 43b, 43a provided at two front and rear positions on the right half side of the fuel tank 4 are provided on the right half side of the fuel tank 4 in plan view with respect to the fuel tank 4. It extends along a straight line connecting two fastening flange portions 41 provided at two front and rear portions. In the two concave grooves 43b and 43a at the front right and rear two places, the fixing bands 6B arranged over the two fastening flanges 41 at the front right and rear two places are arranged. .

  The fixing band 6 is arranged below the fuel tank 4, and the fastening ends 61 at both ends thereof are joined together with the fastening flange 41 of the fuel tank 4 to the above-mentioned fastening point T on the lower surface of the vehicle body 3. The joint fastening secures the fuel tank 4 to the lower surface of the vehicle body 3 (that is, the inside of the housing recess 31). Two fixing bands 6 (6A, 6B) are provided, and are respectively arranged below the left half part and the right half part of the fuel tank 4.

  The fixing band 6 is formed by bending a band-shaped thin metal plate into a flat hat shape in cross section, for example. Both ends in the longitudinal direction of the fixing band 6 together with the fastening flange 41 of the fuel tank 4 constitute a fastening end 61 to be fastened to the fastening location T of the vehicle body 3. The fastening end portion 61 of the fixing band 6 is provided with a through hole 61a (see FIG. 4) through which the fastening component 8 is inserted. The fastening end portion 61 of the fixing band 6 is formed wider than portions other than the fastening end portion 61 in the fixing band 6 in order to suppress a decrease in strength due to the formation of the through hole 61a.

  The fixing band 6 is bent in a hat shape along the longitudinal direction of the fixing band 6 so that the fixing band 6 can be fitted to the surface of the fuel tank 4. Both ends of the fixing band 6 in the longitudinal direction (that is, the fastening ends 61) are in contact with the above-mentioned fastening points T of the vehicle body 3 so that one of the two main surfaces of the fixing band 6 (that is, the fastening ends 61). It is bent in a substantially L-shape on the side of the main surface opposite to the main surface facing the fuel tank 4.

  As shown in FIGS. 3 and 4, reinforcing members 11 are provided at both ends in the longitudinal direction of the fixing band 6. The reinforcing member 11 is interposed between the fixing band 6 and a later-described component-side flange portion 72 of the fixing component 7 to disperse the fastening force acting on the fastening end 61 of the fixing band 6 from the fixing component 7. Is what you do. The reinforcing member 11 is formed of, for example, a substantially strip-shaped thin metal plate, has a width substantially equal to the width of the fixing band 6, and is formed longer than the fastening end 61 of the fixing band 6. The reinforcing member 11 is provided with a through hole 11a having the same shape and the same size as the through hole 61a in a communicating manner at a position overlapping the through hole 61a of the fixing band 6 (see FIG. 4). That is, the reinforcing member 11 is formed in an annular plate shape.

  The reinforcing member 11 is bent to one main surface side of both main surfaces of the reinforcing member 11 in the middle of the longitudinal direction. Thereby, the reinforcing member 11 can be fitted in the above-described substantially L-shaped bent shape at both ends in the longitudinal direction of the fixing band 6. The reinforcing member 11 is connected to one main surface of both ends in the longitudinal direction of the fixing band 6 (that is, a main surface opposite to the main surface facing the fuel tank 4) in a superimposed state, for example, by welding.

  Since the reinforcing member 11 is a member for dispersing the fastening force acting on the fastening end 61 of the fixing band 6 from the fixing component 7, the size and shape of the main surface of the reinforcing member 11 are As long as the contact surface of the fixing component 11 with the fixing band 6 is larger than the seating surface of a component-side flange portion 72 of the fixing component 7 described later, any size and shape may be used. The bearing surface of the component-side flange 72 is a surface of the component-side flange 72 facing the reinforcing member 11.

  The fixing band 6 (6A, 6B) provided with the reinforcing member 11 is attached to the fuel tank 4 by the fixing component 7 in advance before the fuel tank 4 is attached to the vehicle body 3.

  More specifically, the fixing band 6A is disposed along the front-rear direction of the vehicle such that the lower side of the fuel tank 4 is disposed in the two concave grooves 43b and 43a at the front left and right sides of the fuel tank 4 at two locations. Are being searched. In this state, the fastening ends 61 at both ends of the fixing band 6 </ b> A are fixed to the two fastening flange portions 41 at the front left and rear two places on the left half side of the fuel tank 4 by the fixing components 7. Similarly, the fixing band 6B is routed along the vehicle front-rear direction so that the lower side of the fuel tank 4 is disposed in the two concave grooves 43b and 43a at two front right and left sides of the fuel tank 4. ing. In this state, the fastening ends 61 at both ends of the fixing band 6B are respectively fixed to the two fastening flange portions 41 at two front right and left sides of the fuel tank 4 by the fixing component 7. As described above, the fixing bands 6A and 6B are attached to the fuel tank 4 in advance.

  As shown in FIG. 5, the fixed component 7 is configured as, for example, a flange collar, and includes a tubular portion 71 through which the fastening component 8 can be inserted, and a component-side flange portion 72 provided on an outer peripheral surface of the tubular portion 71. Have.

  The cylindrical portion 71 has an inner peripheral surface 71b formed in a cylindrical shape, and an outer peripheral surface 71a formed in an elliptical cylindrical shape (including a long cylindrical shape). The component-side flange portion 72 extends outward from the peripheral edge of the one end opening of the cylindrical portion 71 toward the outer peripheral side, and is provided over the entire circumferential direction of the cylindrical portion 71. The outer diameter of the component side flange portion 72 is formed, for example, in a circular shape.

  As shown in FIG. 4, the fixing component 7 configured as described above has the cylindrical portion 71 that passes through the through-hole 11 a of the reinforcing member 11 and the through-hole 61 a of the fixing band 6 in this order. It is inserted and fixed (for example, press-fitted) into the through hole 42 of the fastening flange portion 41 from below (the support portion 41b side). As a result, the fastening end portion 61 of the fixing band 6 and the reinforcing member 11 are sandwiched between the component side flange portion 72 of the fixing component 7 and the fastening flange portion 41. Thereby, the fastening end 61 and the fastening flange 41 of the fixing band 6 are aligned with each other (that is, the through hole 61a of the fastening end 61 and the through hole 42 of the fastening flange 41 communicate with each other). Fixed).

  As described above, the fuel tank 4 to which the fixing band 6 is attached in advance is arranged in the accommodation recess 31 on the lower surface of the vehicle body 3, and each of the fastening flange portions 41 is fastened by the fastening component 8 by the fastening component 8. Along with the fastening end 61 of the fixing band 6 fixed to the fixing flange 41, the fixing band 6 is jointly fastened to the above-mentioned fastening point T of the vehicle body 3.

  More specifically, the fastening component 8 (for example, a bolt) includes a tubular portion 71 of the fixed component 7 that fixes the fastening end 61 of the fixing band 6 to the fastening flange 41 of the fuel tank 4, and a body 3 of the vehicle body 3. The through-hole 31a provided at the above-mentioned fastening point T is inserted in this order, and is fastened to the to-be-fastened part 31b (for example, nut) provided on the back side of the through-hole 31a. As a result, the fastening flange 8 and the fastening end 61 are jointly fastened to the fastening location T of the vehicle body 3 by the fastening component 8.

  In this manner, the fuel tank 4 is rigidly fixed to the vehicle body 3 by the respective fastening flange portions 41 being fastened to the above-described fastening locations T of the vehicle body 3. Further, by fastening the fastening ends 61 at both ends of the fixing band 6 to the above-mentioned fastening points T of the vehicle body 3, the fuel tank 4 is supported by the vehicle body 3 so that the fuel tank 4 is supported from below by the fixing band 6. It is fixed to.

  Next, a procedure for mounting the fuel tank 4 to the vehicle body 3 in the vehicle fuel tank mounting structure 1 (that is, a method of mounting the vehicle fuel tank) will be described with reference to FIG. First, as described above, the fixing band 6 is attached to the fuel tank 4 in advance by the fixing component 7. As a result of this mounting operation, as described above, the fastening end portion 61 of the fixing band 6 is aligned with the fastening flange portion 41 of the fuel tank 4 (that is, the through-holes 61a, 41a communicate with each other). ) Are fixed to each other. This mounting operation can be performed together with the production of the fuel tank 4 in, for example, the production process of the fuel tank 4.

  Then, in the vehicle assembling process, the fuel tank 4 to which the fixing band 6 is attached in advance as described above is disposed in the housing recess 31 on the lower surface of the vehicle body 3. In this state, the fastening parts 8 allow the fastening flange portions 41 of the fuel tank 4 to be fastened together with the fastening ends 61 of the fixing bands 6 fixed to the fastening flange portions 41 by the above-described fastening of the vehicle body 3. Fastened together at location T. Thus, the fuel tank 4 is mounted in the housing recess 31 on the lower surface of the vehicle body 3.

  As described above, according to the vehicle fuel tank mounting structure 1 according to this embodiment, the fuel tank 4 having the fastening flange 41 and the fixing band 6 for fixing the fuel tank 4 to the vehicle body 3 are disposed on the vehicle body 3. A fixing component 7 for fixing the fastening end portion 61 of the fixing band 6 and the fastening flange portion 41 of the fuel tank 4 to each other in a state of being aligned with each other, and a fastening flange portion 41 fixed to each other by the fixing component 7. And a fastening component 8 for fastening the fastening end 61 and the vehicle body together.

  For this reason, the fastening flange 41 of the fuel tank 4 and the fastening end 61 of the fixing band 6 are fixed to each other in a state where they are aligned with each other by the fixing component 7, and the fixing fixed to each other by the fixing component 7. Since the fastening flange 41 and the fastening end 61 are jointly fastened to the vehicle body by the fastening part 8, when the fastening flange 41 and the fastening end 61 are jointly fastened, an operation of aligning them is performed. This can be omitted, the workability of mounting the fuel tank 4 can be improved, and the parts can be mounted without deteriorating the mounting position accuracy.

  In addition, the meaning of the above “can be assembled without deteriorating the mounting position accuracy of a plurality of parts” means the mounting position accuracy of the fuel tank 4 itself to the vehicle body, the mounting position accuracy of the fixing band 6 to the fuel tank 4, and the like. Means to improve. When the through-hole 42 of the fastening flange 41 and the through-hole 61a of the fixing band 6 are substantially the same size as the through-hole of the fixing part 7, the fixing part 7 is fixed to the fuel tank 4 at the time of attachment to the vehicle body. If the attempt is made to pass through the through hole 42 of the flange portion 41 or to match the position of the through hole 61a of the fixing band 6 with the through hole of the fixing component 7, the workability is extremely poor. On the other hand, when the through-holes 42 and 61a of the fastening flange 41 and the fixing band 6 are so-called "stupid holes", the positions are easily adjusted, but the mounting position of the fuel tank 4 to the vehicle body and the fuel of the fixing band 6 The mounting position with respect to the tank 4 varies. On the other hand, in this embodiment, since the fuel tank 4 and the fixing band 6 are pre-subassembled with respect to the fixed component 7 before being attached to the vehicle body, the through hole 42 of the fastening flange 41 and the fixing band Even when the through-hole 61a of the fixing member 6 is substantially the same size as the through-hole of the fixed component 7, since there is a sub-assembly, there is no problem of deterioration in workability when mounting to the vehicle body.

  The fixed component 7 has a tubular portion 71 through which the fastening component 8 can be inserted, and a component-side flange portion 72 provided on the outer peripheral surface of the tubular portion 71. , A first through hole 41a is provided, a second through hole 61a is provided at the fastening end 61 of the fixing band 6, and the cylindrical portion 71 is inserted through the second through hole 61a and the first through hole 41a in order. By being fixed to the first through hole 41a in this state, the fastening end 61 is sandwiched between the fastening flange 41 and the component-side flange 72.

  For this reason, the cylindrical part 71 of the fixing component 7 is fixed to the first through-hole 41a in a state where the cylindrical part 71 of the fastening part 61 is inserted through the second through-hole 61a of the fastening end 61 and the first through-hole 41a of the fastening flange 41 in order. Since the fastening end 61 is sandwiched between the fastening flange 41 and the component-side flange 72, the fastening end 61 and the fastening flange 41 are connected to each other with a simple structure using the fixed component 7. They can be fixed to each other in the aligned state.

  Further, since the outer shape of the cylindrical portion 71 of the fixed component 7 is an elliptical cylindrical shape, when the fastening flange portion 41 and the fastening end portion 61 are jointly fastened to the vehicle body with the fastening component 8, the cylindrical portion 71 of the fixed component 7 is fixed. Can be suppressed from rotating with respect to the first through hole 41a. Thereby, it is possible to suppress the fixing band 6 from being twisted at the time of joint fastening.

  In this embodiment, the first through hole 41a of the fuel tank 4 into which the tubular portion 71 of the fixed component 7 is inserted has an elliptical tubular shape. In this case, the cylindrical portion 71 of the fixed component 7 and the first through hole 41a are fitted to each other, so that the cylindrical portion 71 of the fixed component 7 is prevented from rotating with respect to the first through hole 41a. The first through-hole 41a may have a cylindrical shape. In this case, the outer peripheral surface of the cylindrical portion 71 of the fixed component 7 is provided at both ends in the elliptical long axis direction with the inner peripheral surface of the first through-hole 41a. The frictional force is concentrated, and the end of the elliptical long axis direction is easily caught on the inner peripheral surface of the first through hole 41a, so that the cylindrical portion 71 of the fixed component 7 rotates with respect to the first through hole 41a. Is suppressed.

  The reinforcing member 11 is provided between the fastening end 61 and the component-side flange 72, and a contact surface of the reinforcing member 11 with the fixing band 6 is larger than a seating surface of the component-side flange 72. Therefore, the fastening force acting on the fastening end portion 61 of the fixing band 6 from the fixing component 7 can be dispersed by the reinforcing member 11, whereby the load of the fixing band 6 can be reduced.

  Further, according to the vehicle fuel tank mounting method according to this embodiment, the fastening flange 41 of the fuel tank 4 disposed on the vehicle body 3 and the fastening end of the fixing band 6 for fixing the fuel tank 4 to the vehicle body 3 Fixing the parts 61 to each other in a state where they are aligned with each other by the fixing parts 7, and connecting the fastening flange 41 and the fastening ends 61 fixed to each other by the fixing parts 7 to the vehicle body 3 by the fastening parts 8. Since the fastening step is included, when the fastening flange portion 41 and the fastening end portion 61 are jointly fastened, the operation of aligning the fastening flange portion 41 and the fastening end portion 61 with each other can be omitted. Can be assembled without deteriorating the mounting position accuracy.

  The present invention is not limited to the configuration of the above-described embodiment, but can obtain many embodiments.

DESCRIPTION OF SYMBOLS 1 ... Vehicle fuel tank mounting structure 3 ... Car body 4 ... Fuel tank 6 ... Fixing band 7 ... Fixing part 8 ... Fastening part 11 ... Reinforcing member 41 ... Fastening flange 41a ... Through hole (first through hole)
61: fastening end 61a: through hole (second through hole)
71: Tube part 72: Part side flange part

Claims (4)

A fuel tank disposed on the vehicle body and having a fastening flange portion,
A fixing band for fixing the fuel tank to the vehicle body,
A fixing part for fixing the fastening end of the fixing band and the fastening flange of the fuel tank to each other in a state of being aligned with each other,
The fastening flange portion and the fastening end portion, which are fixed to each other by the fixed component, are provided together with a fastening component for fastening together to the vehicle body ,
The fixed component has a tubular portion through which the fastening component can be inserted, and a component-side flange portion provided on an outer peripheral surface of the tubular portion,
A first through hole is provided in the fastening flange portion of the fuel tank,
A second through hole is provided at the fastening end of the fixing band,
By fixing the cylindrical portion to the first through-hole in a state where the cylindrical portion is sequentially inserted through the second through-hole and the first through-hole, the fastening end portion includes the fastening flange portion and the component-side flange portion. Vehicle fuel tank mounting structure sandwiched between . The outer shape of the cylindrical portion of the fixed component is an elliptical cylindrical shape
The vehicle fuel tank mounting structure according to claim 1 . A reinforcing member interposed between the fastening end portion and the component side flange portion,
A contact surface of the reinforcing member with the fixing band is larger than a bearing surface of the component side flange portion.
The vehicle fuel tank mounting structure according to claim 1 or 2 . A first through hole provided in a fastening flange portion of a fuel tank disposed on a vehicle body and a second through hole provided in a fastening end portion of a fixing band for fixing the fuel tank to the vehicle body so as to communicate with each other. The step of fixing the fastening flange portion and the fastening end portion to each other in a state where they are aligned with each other by a fixing component,
Wherein the stationary fastening part is inserted into the tubular portion of the part, it viewed including the step of co-fastening the said fixed part in a fixed the fastening flange together with the fastening end to the vehicle body,
The step of fixing the fastening flange portion and the fastening end portion by the fixing component,
The tubular portion of the fixing component is inserted in the order of the second through hole of the fastening end, and the first through hole of the fastening flange, and the tubular portion is fixed to the first through hole. Thereby, the fastening end portion of the fixing band is sandwiched between the component side flange portion of the fixing component provided on the outer peripheral surface of the cylindrical portion and the fastening flange portion of the fuel tank. There is a vehicle fuel tank mounting method.

Images