JP5429360B2 - Tank support structure - Google Patents

Description

  The present invention relates to a tank support structure, and more particularly to a tank support structure that can reduce a load applied to a welded portion between the band and a bracket in a tank support structure having a band and a bracket.

  As a fuel cylinder structure that fixes a fuel cylinder filled with gaseous fuel such as dimethyl ether or liquefied propane gas to the vehicle, the fixed band for tightening the outer periphery of the fuel cylinder is composed of two band halves, each band half Each of the upper and lower support frames is fixed to the outer periphery of the fuel cylinder, and both ends of each band half are opposed to each other at two upper and lower positions, and adjustment means for adjusting the tightening margin are provided respectively. A fuel cylinder fixing structure for an automobile in which the fuel cylinder is fastened and fixed by means has been proposed (Patent Document 1).

Since the fuel cylinder fixing structure can adjust the axial position of the fuel cylinder by adjusting the tightening margin of the band half body by the adjusting means even when the outer diameter of the fuel cylinder varies. There is a feature that there is no need to provide the vehicle side piping with a mechanism for absorbing the deviation between the cylinder center position and the vehicle side piping.
JP-A-9-290650

  However, in the fuel cylinder fixing structure, when the frame is welded to the outer peripheral surface of the band half, when a load in the axial direction is generated on the fuel cylinder due to the shaking of the vehicle, the force in the direction of peeling the band half from the frame is generated. There is a problem that it occurs in the weld between the frame and the band half.

  The present invention has been made to solve the above problem, and has a band and a bracket, and a tank support structure for supporting a tank such as the fuel cylinder to a vehicle body, between the band and the bracket. It aims at providing the tank support structure which can reduce the load added to a welding part.

According to the first aspect of the present invention, a bracket that is fixed to a vehicle body in a vehicle, a tank that is fixed to the bracket, and a band that can be divided into a first band half and a second band half. And fastening means for fastening the first band half and the second band half, and the first band half is fixed to the bracket on the inner peripheral surface and one end of the first band half is A first portion fastened to one end of the two-band half, and extends from the other end of the first portion along the circumferential direction, and fastened to the other end of the second band half at the end. And the first band half is fixed to the bracket on the inner peripheral surface thereof, and the bracket is connected to the first part of the first band half. Inner circumference in part 1 A first support leg fixed to one side edge of the first band half, and a second support leg fixed to the other side edge of the inner peripheral surface of the first portion of the first half band. It relates to a tank support structure.

  In the tank support structure, since the first band half is fixed to the blanket on the inner peripheral surface, in the state where the tank is mounted on the tank support structure, the first band half in the blanket is The fixed part is sandwiched between the first band half and the wall of the tank. Moreover, in the said tank support structure, it can respond to the change of the width | variety of a 1st band half body only by enlarging / reducing the space | interval of a 1st support leg and a 2nd support leg.

The invention according to claim 2 relates to the tank support structure according to claim 1, wherein the first band half body includes a reinforcing member fixed to an outer peripheral surface of the second portion .

  In the tank support structure, since the reinforcing member is fixed to the outer peripheral surface of the second portion that is not fixed to the bracket in the first band half, the thickness of the second portion is set to the first portion. The thickness of the portion can be made larger.

  The invention according to claim 3 relates to the tank support structure according to claim 2, wherein the first portion and the second portion of the first band half have the same thickness.

  In the tank support structure, since the plate thickness of the first portion and the second portion is the same in the first band half, the entire first band half can be formed by one plate material.

The invention according to claim 4, wherein the bracket includes the pair of bulkheads to claim 2 or 3 wherein the pair of bulkhead and said first supporting leg and a second supporting leg forms a box-type structure It relates to the tank support structure described.

  In the tank support structure, the bracket is a box-type structure formed by the first support leg, the second support leg, and the pair of bulkheads. High strength along the axial direction of the tank.

According to a fifth aspect of the present invention, one of the pair of bulkheads is integrally formed with the first portion at the end of the first portion of the first band half, and the other of the pair of bulkheads is The tank support structure according to claim 4 , wherein the tank support structure is formed integrally with a reinforcing member of the first band half.

  In the tank support structure, one of the pair of bulkheads is formed integrally with the reinforcing member, and the other of the front bulkheads is formed integrally with the first portion of the first band half. Compared to the tank support structure formed separately from the member and the first band half, the strength along the axial direction of the tank is higher.

The invention of claim 6 relates tank support structure according to any one of claims 1 to 5, comprising the interference adjusting means said fastening means to adjust the interference.

  In the tank support structure, the tightening means is provided with the tightening allowance adjusting means. Therefore, even when a tank having a different outer diameter is mounted, the tightening allowance adjusting means is adjusted to match the outer diameter of the tank. A tight margin is obtained.

According to a seventh aspect of the present invention, of the pair of bulkheads in the bracket, the bulkhead formed integrally with the reinforcing member of the first band half is opposed to the wall surface of the vehicle. The bulkhead formed integrally with the first portion of the one-band half is positioned on the opposite side of the wall surface with the first support leg and the second support leg sandwiched between the bracket. The first support leg and the second support leg are fixed to or near the wall surface of the vehicle, and both the first band half and the second band half extend over the half circumference of the tank to be supported. 6. The tank support structure according to claim 5 , wherein one end of the second band half is fastened to a bulkhead integrally formed with the first portion of the first band half.

  In the tank support structure, each of the first band half and the second band half extends over a half circumference of a tank to be supported, and one end of the second band half is in the bracket. Since the second band half is fastened to one of the bulkheads, the second band half can be fastened or disconnected to the first band half from the opposite side of the wall surface of the vehicle with the first band half and the bracket interposed therebetween. .

The invention according to claim 8 is the tank according to any one of claims 1 to 7 , wherein rubber sheets are attached to the inner peripheral surfaces of the first band half and the second band half in the band. It relates to the support structure.

  In the tank support structure, since the rubber sheet is fixed to the inner peripheral surfaces of the first band half and the second band half, the first band half and the second band when the tank is mounted. The surface of the band half on which the rubber sheet is fixed comes into contact with the surface of the tank.

  According to the first aspect of the present invention, in a state where the tank is mounted on the tank support structure, the portion of the blanket to which the first band half is fixed is between the first band half and the wall surface of the tank. It will be sandwiched between them. Therefore, even when an axial load is applied to the tank, the tank support that can effectively suppress the force in the direction of separating the band and the blanket from acting between the band and the blanket. A structure is provided. In addition, since the change in the width of the first band half can be accommodated only by enlarging or reducing the distance between the first support leg and the second support leg in the bracket, the width of the first band half may be wide or narrow. A tank support structure that can use the same bracket is provided.

  According to the invention of claim 2, since the thickness of the second portion can be made larger than the thickness of the first portion, the first portion of the first band half is welded. The tank support structure which can ensure the workability | operativity at the time of fixing to a bracket by etc. and can fully ensure the intensity | strength of the axial direction of a tank in the said 2nd part is provided.

  According to the invention of claim 3, since the thickness of the first portion and the second portion of the first band half is the same, the first portion and the second portion are integrated. The tank support can be formed, and therefore the entire first band half can be formed from a single plate, so that there is no connection between the first part and the second part, which can be a structural weak point. A structure is provided.

  According to invention of Claim 5, since the intensity | strength along the axial direction of a tank is high compared with what does not have a bracket, when the big load along an axial direction is added to the said tank, the load of the said axial direction Thus, a tank support structure that can effectively prevent the bracket from being deformed is provided.

  According to the invention of claim 6, the bracket is deformed by the load in the axial direction when a large load along the axial direction is applied to the tank as compared with the case where the bulkhead of the bracket is separated. A tank support structure that can effectively prevent this is provided.

  According to the seventh aspect of the present invention, even when a tank with a different outer diameter is mounted, a tightening margin that matches the outer diameter of the tank can be obtained by adjusting the tightening margin adjusting means. A tank support structure capable of stably fixing a small tank is provided.

  According to the invention of claim 8, the second band half can be fastened to or disconnected from the first band half from the side opposite to the wall surface to which the bracket is fixed with the first band half and the bracket interposed therebetween. Therefore, there is provided a tank support structure that is excellent in workability when the second band half is fastened or disconnected from the first band half.

  According to the ninth aspect of the present invention, when the tank is mounted, the surfaces of the first band half and the second band half to which the rubber sheet is fixed are in contact with the surface of the tank. A tank support structure that can prevent damage to the tank and can stably support the tank is provided.

1 is a perspective view showing an overall configuration of a tank support structure according to Embodiment 1. FIG. It is a perspective view which shows the structure which looked at the band and bracket with which the tank support structure which concerns on Embodiment 1 is equipped from the vehicle diagonally back. It is sectional drawing which shows the cross section along the vehicle front-back direction of the band and bracket with which the tank support structure which concerns on Embodiment 1 is provided. It is a perspective view which shows the structure which looked at the band and bracket with which the tank support structure which concerns on Embodiment 1 is equipped from the vehicle diagonally forward. It is a perspective view which shows the structure remove | excluding the rubber sheet from the band and bracket with which the tank support structure which concerns on Embodiment 1 is provided. FIG. 3 is an exploded perspective view showing configurations of a band and a bracket included in the tank support structure according to the first embodiment. It is sectional drawing which shows the cross section which cut | disconnected the bracket with which the tank support structure which concerns on Embodiment 1 is equipped, and the 1st band half body along the vehicle left-right direction. In the tank support structure according to the first embodiment, it is a schematic diagram showing deformation of the bracket with respect to a vehicle left-right load when a bulkhead is not provided on the bracket. In the tank support structure concerning Embodiment 1, it is the schematic which shows that the stability of a bracket to the load of vehicles left and right improves by providing a bulkhead in a bracket compared with the case where there is no bulkhead.

1. Embodiment 1
Hereinafter, an example of a tank support structure according to the present invention will be described with reference to the drawings. In FIG. 1 and subsequent figures, an arrow “FR”, an arrow “RE”, an arrow “UP”, and an arrow “DN” respectively indicate the vehicle front, the vehicle rear, the vehicle upper, and the vehicle lower. An arrow “L” and an arrow “R” respectively indicate the left side and the right side of the vehicle from the rear of the vehicle toward the front of the vehicle.

  As shown in FIG. 1, the tank support structure 10 according to the first embodiment is for supporting the tank 2 in the vicinity of the partition wall 5 on the floor surface 4 of the loading platform 3 of the pickup truck 1 that is an example of a vehicle. A bracket 11 that is fixed to the floor surface 4 by bolts 17 and a cylindrical band 14 for fixing the tank 2 to the bracket 11 are provided. In addition, the partition 5 is an example of the wall surface of the vehicle in this invention.

  As shown in FIGS. 1 to 5, the band 14 constitutes the lower half of the band 14, the first band half 12 fixed to the bracket 11, the upper half of the band 14, and the first The second band half 13 is fastened to both ends of the one band half 12 by bolts 15 and nuts 16 which are examples of fastening means. Both the first band half 12 and the second band half 13 are formed in a semi-cylindrical shape.

  A rubber sheet 20 and a rubber sheet 21 are fixed to the inner peripheral surface of the first band half body 12, and a rubber sheet 22 is fixed to the inner peripheral surface of the second band half body 13. Double-sided adhesive tape can be used for fixing the rubber sheet 20, the rubber sheet 21, and the rubber sheet 22.

  As shown in FIGS. 2 to 6, the first band half body 12 includes a first portion 12 </ b> A fixed to the bracket 11 and a second portion extending obliquely upward from the first portion 12 </ b> A toward the front of the vehicle. It has the part 12B and the reinforcement member 12C fixed to the outer peripheral surface of the 2nd part 12B. The first portion 12A and the second portion 12B are integrally formed from a single plate material.

  The first band half body 12 has a bolt 15 and a terminal 15 at one end of the second band half body 13 in the end of the first part 12A opposite to the side connected to the second part 12B, in other words, in the bulkhead 11C described later. It is fastened by the nut 16 and fastened by the bolt 15 and the nut 16 to the other end of the second band half 13 at the end of the second portion 12B. The reinforcement member 12C can be fixed to the second portion 12B by arc welding.

  The plate thicknesses of the first portion 12A, the second portion 12B, and the reinforcing member 12C of the first band half 12 are all 3 mm. On the other hand, the thickness of the second band half 13 is 6 mm. However, the plate thickness of the first portion 12A, the second portion 12B, and the reinforcing member 12C of the first band half 12 is not limited to 3 mm. Similarly, the plate thickness of the second band half 13 is not limited to 6 mm. However, the plate thickness of the first portion 12A, the second portion, and the reinforcing member 12C of the first band half 12 is preferably smaller than the plate thickness of the second band half 13.

  As shown in FIGS. 2 to 6, the bracket 11 includes a first support leg 11 </ b> A fixed to one side edge portion on the inner peripheral surface of the first portion 12 </ b> A in the first band half body 12, and a first support leg 11 </ b> A. A bulkhead 11C that forms a box structure by connecting the second support leg 11B, which is fixed to the other side edge of the inner peripheral surface of the portion 12A, and the first support leg 11A and the second support leg 11B at both end edges. , 11D, and a bulkhead 11D. The first support leg 11A is located on the right side of the vehicle with respect to the second support leg 11B. Further, the bulkheads 11C and 11D are located on the vehicle rear side, and the bulkhead 11E is located on the vehicle front side.

  In the bracket 11, as shown in FIGS. 2 to 7, the first support legs 11 </ b> A and the first support legs 11 </ b> B are fixed to the floor surface 4 of the loading platform 3 of the pickup truck 1 by bolts 17.

  Both the first support leg 11A and the first support leg 11B are bent inward at the upper edge of the vehicle into a flange shape, and the first band half 12 in the first band half 12 is formed on the lower surface of the flange-like portion. The inner peripheral surface of the first portion 12A is fixed. Examples of means for fixing the inner peripheral surface of the first portion 12A in the first band half body 12 to the flange-like portion at the upper end edges of the first support leg 11A and the first support leg 11B include arc welding. Means such as adhesion are also possible.

  Further, of the bulk head 11C and the bulk head 11D, the bulk head C bends the end portion of the first portion 12A of the first band half body 12 on the side to be fastened to the second band half body 13 obliquely downward in the vehicle. The bulkhead 11 </ b> D is fastened to the bulkhead 11 </ b> C by bolts 15 and nuts 16. On the other hand, the bulkhead 11E is formed by bending the lower end portion of the reinforcing member 12C in the first band half body 12 toward the vehicle lower side.

  Bulk head 11C, bulk head 11D, and bulk head 11E are all fixed to the inner surfaces of first support leg 11A and second support leg 11B at both side edges. The bulkhead 11C, the bulkhead 11D, and the bulkhead 11E can be fixed to the first support leg 11A and the second support leg 11B by means of arc welding, spot welding or the like. These means are also possible.

  Hereinafter, the operation of the tank support structure 10 will be described.

  When the tank 2 is fixed to the pickup truck 1, the tank 2 is attached to the first band half 12 and the bracket 11 in a state where the second band half 13 is detached from the first band half 12, as shown in FIG. Is placed.

  Next, the tank 2 is held by the band 14 by fastening the second band half 13 to the first band half 12 by the bolt 15 and the nut 16.

  In the tank support structure 10, when the tank 2 is supported, as shown in FIG. 7, the flange-like portions at the upper ends of the first support leg 11 </ b> A and the body 2 support leg 11 </ b> B are connected to the first band half body 12. It is in a state of being sandwiched between the tanks 2. Therefore, even when a vehicle left-right load is applied from the tank 2, the first band half 12 is interposed between the first band half 12, the first support leg 11A, and the body 2 support leg 11B. It is suppressed that the force of the direction which tries to peel off from the 1st support leg 11A and the body 2 support leg 11B acts.

  Further, in the first band half body 12, since the first portion 12A is as thin as 3 mm, the workability at the time of arc welding to the first support leg 11A and the second support leg 11B is excellent. On the other hand, since the thickness of the second portion 12B is also as thin as 3 mm, the workability when arc welding the reinforcing member 12C to the outer peripheral surface is good. Further, by welding a reinforcing member 12C having a thickness of 3 mm to the second portion 12B, the thickness becomes 6 mm, which is the same as that of the second band half body 13, and therefore, in the second portion 12B, the second band half The fastening strength with the body 13 and the strength in the left-right direction of the vehicle can be ensured.

  Further, in the first band half body 12, as described above, the first portion 12A and the second portion 12B are formed as a single body from a single plate member. A connecting portion that becomes a structural weak point is not formed between the first portion 12B and the second portion 12B.

  Further, in the bracket 11, since the first band half body 12 is supported by the first support legs 11A and the second support legs 11B, when a narrower one is used as the first band half body 12, and In any of the cases where a wider one is used, the first support leg 11A and the second support leg 11B change the fixing position to the floor surface 4 and change between the first support leg 11A and the second support leg 11B. It can be used as it is simply by changing the interval.

  Further, in the bracket 11, since the first support leg 11A and the second support leg 11B form a box structure together with the bulk head 11C, the bulk head 11D, and the bulk head 11E, as shown in FIG. Compared with the bracket 11 of FIG.

  In addition, since the bulkhead 11C is formed integrally with the first portion 12A of the first band half 12, and the bulkhead 11E is formed integrally with the reinforcing member 12C of the first band half 12, the bulkhead Compared with the case where 11C and the bulkhead 11E are different members from the first band half body 12, the load is more stable with respect to the vehicle left-right direction.

  Since the first band half body 12 and the second band half body 13 are fastened by the bolt 15 and the nut 16, the bolt 15 and the nut 16 function as tightening allowance adjusting means. Therefore, by adjusting the tightening allowance of the bolt 15 and the nut 16, a tightening allowance that matches the outer diameter of the tank can be obtained, so that a tank having a large diameter or a small tank can be stably fixed.

  One end of the second band half 13 is fastened to the end of the first band half 12 which is the bulkhead 11C, and the other end of the second band half 13 is the second part of the first band half 12. Fastened to the end of 12B.

  Accordingly, as shown in FIGS. 1 and 2, the second band half 13 can be fastened and disconnected to the first band half 12 from the opposite side of the partition wall 5 with the first band half 12 and the bracket 11 interposed therebetween. Therefore, workability when the second band half 13 is fastened to and disconnected from the first band half 12 is good.

  Further, since the rubber sheet 20, the rubber sheet 21, and the rubber sheet 22 are fixed to the inner peripheral surfaces of the first band half 12 and the second band half 13, respectively, the surface of the tank 2 is the first band. It is prevented that scratches are generated by rubbing directly with the inner peripheral surfaces of the half body 12 and the second band half body 13. Further, the tank 2 can be supported more stably as compared with the case where the rubber sheet 20, the rubber sheet 21, and the rubber sheet 22 are not provided.

DESCRIPTION OF SYMBOLS 1 Pickup truck 2 Tank 3 Loading platform 4 Floor surface 5 Bulkhead 10 Tank support structure 11 Bracket 11A Support leg 11B Support leg 11C Bulkhead 11D Bulkhead 11E Bulkhead 12 Band half body 12B Support leg 12C Reinforcement member 13 Band half body 14 Band 15 Bolt 16 Nut 17 Bolt 20 Rubber sheet 21 Rubber sheet 22 Rubber sheet

Claims (8)

A bracket fixed to a vehicle body in a vehicle;
The tank is fixed to the bracket, and a band that can be divided into two parts, a first band half and a second band half,
Fastening means for fastening the first band half and the second band half;
With
The first band half is
A first portion fixed to the bracket on the inner peripheral surface and having one end fastened to one end of the second band half;
A second portion extending along the circumferential direction from the other end of the first portion and fastened to the other end of the second band half at the end;
Have
In the band, the first band half is fixed to the bracket on its inner peripheral surface,
The bracket is
A first support leg fixed to one side edge of the inner peripheral surface of the first portion of the first band half;
A second support leg fixed to the other side edge of the inner peripheral surface of the first portion of the first band half;
A tank support structure comprising: The tank support structure according to claim 1, wherein the first band half includes a reinforcing member fixed to an outer peripheral surface of the second portion .   3. The tank support structure according to claim 2, wherein in the band, the first portion and the second portion of the first band half have the same thickness. The tank support structure according to claim 2 or 3 , wherein the bracket includes a pair of bulkheads, and the pair of bulkheads, the first support legs, and the second support legs form a box structure. One of the pair of bulkheads is integrally formed with the first part at the one end of the first part of the first band half, and the other of the pair of bulkheads is a reinforcement of the first band half. The tank support structure according to claim 4 , wherein the tank support structure is formed integrally with the member. The tank support structure according to any one of claims 1 to 5 , wherein the fastening means includes a fastening allowance adjusting means for adjusting a fastening allowance. Of the pair of bulkheads in the bracket, the bulkhead integrally formed with the reinforcing member of the first band half faces the wall surface of the vehicle, and the first portion of the first band half The first support leg and the second support leg in the bracket so that the bulkhead formed integrally with the bracket is located on the opposite side of the wall surface with the first support leg and the second support leg in the bracket interposed therebetween. Is fixed to or near the wall of the vehicle,
The first band half and the second band half both extend over the half circumference of the tank to be supported, and one end of the second band half is the first band half of the first band half . The tank support structure according to claim 5 , wherein the tank support structure is fastened to a bulkhead formed integrally with the portion . The tank support structure according to any one of claims 1 to 7 , wherein rubber sheets are attached to inner peripheral surfaces of the first band half and the second band half in the band.

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