JP5517303B2 - Mounting structure of fuel tank for automobile - Google Patents

Description

  The present invention relates to a mounting structure for a fuel tank for an automobile that is attached under the floor panel of the automobile.

  Conventionally, a fuel tank for an automobile is often attached under a floor panel because of space. In this case, the fuel tank is attached to the frame or floor panel of the vehicle body with a plurality of belt-like tank holding bands. Since this tank holding band requires strength, a metal band is used.

However, when the vehicle is running, there is a problem that the tank holding band and the fuel tank vibrate and slide, wear, or generate abnormal noise. Is attached.
The band cushion does not damage the fuel tank even if it comes into contact with the fuel tank, and requires easy mounting, flexibility and vibration damping. Therefore, it is formed of rubber or soft synthetic resin.

For example, as shown in FIG. 12, a groove portion of a band cushion 120 formed so as to surround the outer periphery of a flat belt-like tank holding band 110 is fitted and adhered (for example, , See Patent Document 1).
Further, in order to increase the cushioning property with respect to the fuel tank 2, a band portion 221 continuous in the longitudinal direction is formed on both side ends of the band cushion 220, and the band portion 221 is brought into contact with the fuel tank 2. There is a case in which groove portions are provided at both ends of the cushion 220 and the groove portions are fitted to the tank holding band 210 (see, for example, Patent Document 2).

  However, in this case, since the shape of the groove portion is constant and does not change in any case, in order to fit the band cushions 120, 220 having the same cross section formed by extrusion molding in the longitudinal direction, the cross section of the tank holding bands 110, 210 The shape must be the same. However, when the fuel tank 2 is mounted on the vehicle, it is necessary to change the cross-sectional shape of the tank holding bands 110 and 210 in order to ensure the strength necessary to hold the fuel tank 2 depending on the mounting position and the tank weight. Has occurred. If the cross-sectional shape changes, it becomes difficult to securely attach the band cushions 120, 220 to the groove portions of the tank holding bands 110, 210.

  In addition, as shown in FIG. 14, there are some which improve the strength of the tank holding band 310 by providing irregularities in the cross-sectional shape of the tank holding band 310. In this case, the band cushion 320 cannot be fitted into the tank holding band 310, and the convex portion 315 of the tank holding band 310 and the band cushion 320 are bonded.

  However, in this case, in order to ensure adhesive strength, the upper surface of the convex portion 315 of the tank holding band 310 and the inner surface of the band cushion 320 are cleaned, and a primer is applied to the upper surface of the convex portion 315 of the tank holding band 310. After applying the surface treatment to be applied, a step of applying an adhesive and applying the band cushion 320 is necessary.

  For this reason, the process management is complicated so as to eliminate the variation in the adhesive strength, which is a factor in increasing the cost. In addition, the adhesive strength over time due to the use environment and re-adhesion during repairs were difficult. Further, since the tank holding band 310 and the band cushion 320 are adhered, it is difficult to recycle.

Japanese Patent No. 4167056 JP 2009-46000 A

  An object of the present invention is to provide an automobile fuel tank attachment structure that is easy to manufacture and attach.

The present invention of claim 1 for solving the above-described problems is directed to a fuel tank mounting structure for a vehicle that is mounted under a vehicle floor panel.
The fuel tank is attached to the vehicle body with its outer periphery held by a long tank holding band,
A long band cushion located between the tank holding band and the fuel tank along the longitudinal direction of the tank holding band is attached to the tank holding band.
The band cushion has a plate-like cushion body portion that is continuous in the longitudinal direction, and cushion engagement portions that engage with both side ends of the tank holding band at both side ends of the cushion body portion. Cushion engaging part base part extending substantially perpendicularly from the cushion part, cushion engaging part side wall part extending substantially perpendicularly from the cushion engaging part base part, and cushion body part direction from the cushion engaging part side wall part The cushion engaging part is formed to be bent in a bowl shape so as to cover both side ends of the tank holding band, and the bent part is formed to be extendable. This is a fuel tank mounting structure.

  In the first aspect of the present invention, the fuel tank is attached to the vehicle body with its outer periphery held by a long tank holding band. For this reason, the long tank holding band can firmly hold the periphery of the outer wall of the fuel tank according to the shape of the fuel tank, and the fuel tank can be attached to the vehicle body.

A long band cushion positioned between the tank holding band and the fuel tank along the longitudinal direction of the tank holding band is attached to the tank holding band. This prevents the tank holding band from coming into direct contact with the fuel tank and prevents the fuel tank and the tank holding band from being worn when the fuel tank is attached to the vehicle body or when the vehicle is running. And will not cause damage.
Further, the band cushion is made of rubber or soft synthetic resin, so that it has flexibility and can be in close contact according to the shape of the fuel tank and the tank holding band, and can also act as a cushion.

  In the band cushion, a plate-like cushion main body portion that is continuous in the longitudinal direction and a cushion engaging portion that covers both side ends of the tank holding band are formed at both side end portions of the cushion main body portion. For this reason, the cushion main body portion can be positioned between the upper surface of the tank holding band and the outer wall of the fuel tank to perform a cushioning action, and abnormal noise and wear due to friction between the fuel tank and the tank holding band can be prevented. Further, the cushion engaging portion can hold both side ends of the tank holding band so that the band cushion does not come off from the tank holding band.

The cushion engaging portion includes a cushion engaging portion root portion extending substantially at a right angle from the cushion main body portion and a cushion engaging portion side wall portion extending approximately at a right angle from the cushion engaging portion root portion. For this reason, it is possible to form an L-shaped cross section at the base of the cushion engaging portion and the side wall portion of the cushion engaging portion, and to cover the front end surfaces of both sides of the tank holding band with the L-shaped cross section of the tank holding band, Can be held.
Since the front end of the cushion engaging portion is formed so as to protrude from the side wall of the cushion engaging portion toward the cushion main body, the wall portion can be formed at the front end portion of the flange portion having an L-shaped cross section. Even if the leading ends of both side ends are displaced, it can be stopped at the leading end of the cushion engaging portion and prevented from coming off the band cushion.
The cushion engaging portion is formed to be bent in a hook shape so as to hold both side ends of the tank holding band, and the bent portion is formed to be extendable. Therefore, when the band cushion is fitted into the tank holding band, it can be easily attached only by fitting both ends of the tank holding band into a cushion engaging portion formed by bending in a bowl shape.

  Since the bent portion is formed to be extendable, the band cushion can be attached even if the cross-sectional shape of the tank holding band changes, and the cushion engaging portion of the band cushion can hold the end of the tank holding band. . Moreover, it is easy to remove the band cushion, and recycling is easy.

The present invention of claim 2 is a fuel tank mounting structure in which the continuous portion of the cushion engaging portion base portion and the cushion engaging portion side wall portion is formed thinner than the adjacent portion.

According to the second aspect of the present invention, the continuous portion of the cushion engaging portion base portion and the cushion engaging portion side wall portion of the cushion engaging portion is formed thinner than the adjacent portion. For this reason, even if the height of the both sides of the tank holding band expands and the unevenness changes depending on the position of the tank holding band, the thinly formed portion flexes flexibly, and the cushion engagement The front end of the cushion engaging portion of the joint portion reliably covers both ends of the tank holding band and holds the band cushion, and the band cushion can be securely attached to the tank holding band even with the same cross-sectional shape.

According to the third aspect of the present invention, in the portion where the side end of the tank holding band is extended, the continuous portion of the bent cushion engaging portion base portion and the cushion engaging portion side wall portion extends, and the side end of the tank holding band is extended. This is a fuel tank mounting structure that is covered by the tip of the cushion engaging portion of the cushion engaging portion.

According to the third aspect of the present invention, in the portion where the side end of the tank holding band is extended, the continuous portion of the bent cushion engaging portion base portion and the cushion engaging portion side wall portion extends, and the side end of the tank holding band is The tip of the cushion engaging portion of the cushion engaging portion can be covered. For this reason, the cross-sectional shape of the tank holding band can be freely changed in accordance with the shape of the fuel tank, the tip of the tank holding band is covered by the tip of the cushion engaging portion, and the band cushion can be securely held. .

According to a fourth aspect of the present invention, there is formed a cushion engaging portion protrusion that protrudes from the cushion engaging portion distal end toward the cushion engaging portion root portion, and the cushion engaging portion protruding portion and the cushion engaging portion distal end And a fuel tank mounting structure in which a cushion engaging portion groove is formed by the side wall of the cushion engaging portion.

In this invention of Claim 4 , the cushion engagement part protrusion which protrudes in the direction of a cushion engagement part base part from a cushion engagement part front-end | tip part is formed, and a cushion engagement part protrusion and a cushion engagement part front-end | tip part And the cushion engaging part groove part is formed by the cushion engaging part side wall part. For this reason, it becomes possible for the front-end | tip of a cushion engaging part protrusion to contact | abut to the inner surface of the both ends of a tank holding band, and a band cushion can be hold | maintained reliably. In addition, even if the unevenness on both sides of the tank holding band changes greatly and the connecting part of the bent cushion engaging part base part and the side wall part of the cushion engaging part extends, both sides of the tank holding band are inserted into the cushion engaging part groove part. The tip portion of the end can be held, and the band cushion can be securely held by the tank holding band.

The present invention of claim 5 is the fuel tank mounting structure in which the plate-like cushion body portion is formed with a cushion body bent portion bent at an obtuse angle continuous in the longitudinal direction near the center in the width direction.

In the present invention of claim 5 , the plate-shaped cushion body portion is formed with a cushion body bent portion bent at an obtuse angle continuous in the longitudinal direction in the vicinity of the center in the width direction, so that the band cushion can be easily opened in the width direction. Thus, it becomes easy to attach the band cushion to the tank holding band. In addition, the engagement portion of the band cushion is easily engaged with the side end portion of the tank holding band, and the holding force of the band cushion is increased.

According to the sixth aspect of the present invention, the cross section in the width direction of the tank holding band has a band concave portion in which the general portion is recessed in the center in the width direction, a band convex portion swelled in a mountain shape on both sides of the band concave portion, and a band convex portion The fuel tank mounting structure is formed from a band side end formed at the side end of the fuel tank, the band convex portion abuts against the inner surface of the cushion main body, and the band side end engages with the cushion engaging portion.

In the present invention of claim 6, the cross section in the width direction of the tank holding band has a band concave portion in which the general portion is recessed in the central portion in the width direction, a band convex portion swelled on both sides of the band concave portion, and a band convex portion. It is formed from a band side end portion formed at the side end of the band. For this reason, the strength of the tank holding band can be improved, and the fuel tank can be reliably held.

  Since the band convex part comes into contact with the inner surface of the cushion main body part and the band side end part engages with the cushion engaging part, the band convex part comes into contact with the outer wall of the fuel tank and the band convex part is bent. Thus, the vibration of the fuel tank can be absorbed, and the band side end portion can be held by the cushion engaging portion.

The present invention of claim 7 is a fuel tank mounting structure in which the band cushion is formed of natural rubber or EPDM rubber.

In the present invention of claim 7 , since the band cushion is made of natural rubber or EPDM rubber, it has a large force for holding the tank holding band, provides a sufficient cushion action, and is excellent in durability. Moreover, extrusion molding is also easy and the band cushion can be easily recycled.

  In the present invention, the band cushion can be cushioned by the cushion main body portion and the cushion engaging portion, and noise and wear due to friction between the fuel tank and the tank holding band can be prevented. Since the cushion engaging portion is formed in a hook shape so as to hold both side ends of the tank holding band, it is formed in a hook shape when the band cushion is fitted into the tank holding band. It can be easily attached only by fitting both ends of the tank holding band into the cushion engaging portion.

It is sectional drawing of the state which attached the band cushion to the general part of the tank holding band used for the 1st Embodiment of this invention. It is sectional drawing of the state which attached the band cushion to the welding part of the tank holding band used for the 1st Embodiment of this invention. It is sectional drawing of the state which attached the band cushion to the part to which the side end of the tank holding band used for the 1st Embodiment of this invention extended. It is an expanded sectional view of the side edge part of the band cushion used for the 1st Embodiment of this invention. It is an expanded sectional view of the side end part of the band cushion of other embodiments used for the 2nd embodiment of the present invention. It is an expanded sectional view of the side end part of the band cushion of other embodiments used for the 3rd embodiment of the present invention. It is sectional drawing of the state which attached the band cushion to the general part of the tank holding band used for the 4th Embodiment of this invention. It is sectional drawing of the state which attached the band cushion to the welding part of the tank holding band used for the 4th Embodiment of this invention. It is sectional drawing of the state which attached the band cushion to the general part of the tank holding band used for the 5th Embodiment of this invention. It is sectional drawing of the state which attached the band cushion to the welding part of the tank holding band used for the 5th Embodiment of this invention. It is sectional drawing of the state which attached the fuel tank which is the state of implementation of this invention to the vehicle body with the tank holding band and the band cushion. It is sectional drawing of the state which attached the band cushion to the conventional tank holding band. It is sectional drawing of the state which attached the band cushion to the other conventional tank holding band. It is sectional drawing of the state which attached the band cushion to the other conventional tank holding band.

A structure for mounting a fuel tank 2 for an automobile according to an embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 11, the fuel tank 2 is attached to a vehicle body frame or a vehicle body panel of the vehicle body 1 with a tank holding band 10. A band cushion 20 described later is fitted between the tank holding band 10 and the fuel tank 2.

  The number of tank holding bands 10 varies depending on the size of the fuel tank 2, but preferably two or more are used. By using two or more, the tank holding band 10 can stably hold the fuel tank 2. Depending on the shape of the fuel tank 2, the number of tank holding bands 10 can be increased as appropriate.

Although the fuel tank 2 is made of metal or synthetic resin, any fuel tank 2 can be used in the present invention.
In the case of the metal fuel tank 2, steel, stainless steel, or the like can be used.

  In the case of the fuel tank 2 made of synthetic resin, the fuel tank 2 is formed of a single layer of high density polyethylene (HDPE), high density polyethylene (HDPE), or a multilayer structure of a skin layer, a barrier layer and a main body layer. Can be used. In the case of a multilayer structure, the skin layer and the main body layer are formed from a thermoplastic synthetic resin that has high impact resistance and maintains rigidity against fuel oil, and may be formed from high-density polyethylene (HDPE). preferable. As the thermoplastic synthetic resin constituting the barrier layer, for example, ethylene vinyl alcohol copolymer (EVOH), polybutylene terephthalate, polyphenylene sulfide (PPS) or the like is preferably used.

As shown in FIG. 11, the tank holding band 10 is formed in a long belt shape, and includes a band main body 11 that holds the fuel tank 2 and band attaching portions 12 at both ends in the longitudinal direction of the band main body 11. .
A band attachment hole 12 a is formed in the band attachment portion 12, and an attachment screw 13 is inserted into the band attachment hole 12 a and is screwed to the vehicle body frame or the vehicle body panel of the vehicle body 1 by the attachment screw 13.

  As shown in FIG. 1, the band main body 11 has a corrugated cross-sectional shape in the width direction in the general portion, and a band concave portion 14 that is recessed near the center is formed. A raised band convex portion 15 is formed. The upper surface of the band convex portion 15 abuts on the back surface of the band cushion 20 described later. A side end of the band convex portion 15 forms a band side end portion 16 and is formed facing downward so as to engage with a cushion engaging portion 22 of the band cushion 20 described later.

  Since the general portion of the band main body 11 has the band concave portion 14 and the band convex portion 15, the cross-sectional shape forms a corrugated shape, and the strength of the tank holding band 10 can be improved. For this reason, even if the thickness of the band main body 11 is reduced to reduce the weight, rigidity can be secured and the periphery of the fuel tank 2 can be firmly held.

  Since the band convex portion 15 contacts the inner surface of the cushion main body portion 21 and the band side end portion 16 engages with the cushion engaging portion 22, the band cushion 20 is pressed against the outer wall of the fuel tank 2 by the band convex portion 15, The vibration of the fuel tank 2 can be absorbed by the bending of the band protrusion 15 and the bending of the band cushion 20. Further, the cushion engaging portion 22 can be held by the band side end portion 16.

  As shown in FIG. 11, a cover member attachment portion 31 for attaching the cover member 30 is welded to the band body 11. The cover member 30 is formed in a flat plate shape, covers the lower surface of the fuel tank 2, prevents stepping stones from the road, and prevents heat from the exhaust gas pipe and the like from being transmitted to the fuel tank 2. The cover member 30 is screwed to the cover member attachment portion 31 with attachment screws 32.

  In the welded portion where the cover member attachment portion 31 of the band body 11 is welded, the bottom surface of the band convex portion 15 is formed in a flat plate shape as shown in FIG. A band convex portion 15 is formed on the side of the band main body 11 in a U-shaped cross section. The cushion engaging portion 22 can be engaged with the back surface of the band convex portion 15.

Further, as shown in FIGS. 1 and 11, the band main body 11 is formed with a plurality of drain holes 18 at the center in the width direction. For this reason, the water accumulated in the band recess 14 is discharged to the outside to prevent the tank holding band 10 from generating rust.
The tank holding band 10 is made of iron or stainless steel to ensure strength. In the case of iron, plating and painting are performed to prevent rust.

  As shown in FIG. 3, a part of the tank holding band 10 can extend the band side end portion 16 upward. In this case, the band-side end portion 16 can be covered by extending the bent portion of the cushion engaging portion 22 of the band cushion 20 in accordance with the extended band-side end portion 16 as will be described later. For this reason, the cross-sectional shape of the tank holding band 10 can be freely changed according to the shape of the fuel tank 2, and the band cushion 20 can be formed with the same cross-sectional shape and can be securely attached to the tank holding band 10.

Next, the band cushion 20 will be described.
As shown in FIG. 11, a long band cushion 20 positioned between the tank holding band 10 and the fuel tank 2 along the longitudinal direction of the tank holding band 10 is attached to the tank holding band 10. When the fuel tank 2 is attached to the vehicle body 1 by the tank holding band 10, the band cushion 20 can prevent the tank holding band 10 from entering the fuel tank 2 and making direct contact therewith.

  For this reason, when the fuel tank 2 is attached to the vehicle body 1, the metal tank holding band 10 does not damage the surface of the fuel tank 2. Further, it is possible to prevent the fuel tank 2 and the tank holding band 10 from being directly rubbed and worn by vibration or shaking during the traveling of the automobile, and the fuel tank 2 will not be rusted or damaged.

  The band cushion 20 is formed by extrusion molding using natural rubber or EPDM rubber as a material. It can be formed with the same cross section in the longitudinal direction, and is excellent in productivity. When manufactured with natural rubber, the holding force of the tank holding band 10 is large, and an excellent cushioning action can be performed. When manufactured by EPDM, it is excellent in durability and the band cushion 20 can be easily recycled. The band cushion 20 can be made of a flexible material having elasticity and flexibility in addition to natural rubber or EPDM rubber.

  In the first embodiment of the present invention, as shown in FIG. 1, the band cushion 20 is tank-retained at a flat plate-shaped cushion body portion 21 that is continuous in the longitudinal direction and both side ends of the cushion body portion 21 in the width direction. Cushion engaging portions 22 are formed on both sides in the width direction of the cushion main body portion 21 so as to engage with both side ends of the band 10.

  For this reason, when the band cushion 20 is attached to the tank holding band 10, the upper surface of the arc-shaped upper end of the band convex portion 15 of the tank holding band 10 comes into contact with the back surface of the cushion main body 21, so that the band cushion 20 is It can be located between the outer wall and can act as a cushion. Accordingly, the fuel tank 2 and the tank holding band 10 are not in direct contact with each other, so that the surface of the fuel tank 2 can be prevented from being worn, and abnormal noise due to friction can be prevented.

  The cushion engaging portion 22 can be formed so as to hold both side ends of the tank holding band 10 in the width direction so that the band cushion 20 does not come off the tank holding band 10. The cushion engaging portion 22 is formed to be bent in a bowl shape so as to hold both side ends of the tank holding band 10. For this reason, when the band cushion 20 is fitted into the tank holding band 10, it can be easily attached only by fitting both ends of the tank holding band 10 into a cushion engaging portion 22 formed by bending in a bowl shape. .

  For example, as a specific shape, in the first embodiment of the invention, as shown in FIGS. 1 and 2, the cushion engaging portions 22 are formed on both sides of the cushion main body portion 21. As shown in FIG. 4, the details of the shape are as follows. The cushion engaging portion root portion 23 extending downward from the cushion main body portion 21 at a substantially right angle, and the cushion engaging portion root portion 23 inward from each other at a substantially right angle. It is formed of a cushion engaging portion side wall portion 24 extending so as to face each other, and a cushion engaging portion distal end portion 26 formed so as to protrude from the cushion engaging portion side wall portion 24 toward the cushion main body portion (upward).

  For this reason, a flange part having a U-shaped cross section can be formed by the cushion engaging part base part 23, the cushion engaging part side wall part 24 and the cushion engaging part tip part 26. The front end surfaces of both band-side end portions 16 of the tank holding band 10 can be wrapped with the cushion main body portion 21, the cushion engaging portion root portion 23, and the cushion engaging portion side wall portion 24. And the band side edge part 16 is made to oppose or contact | abut on the back surface of the cushion engaging part side wall part 24, and it can hold | maintain with this collar part of a U-shaped cross section. Since the outer surface of the cushion engaging portion distal end portion 26 is formed in a slope shape, the band side end portion 16 can be easily fitted into the cushion engaging portion side wall portion 24.

  A wall-shaped cushion engaging portion distal end portion 26 is formed so as to protrude from the cushion engaging portion side wall portion 24 toward the cushion main body portion 21. A cushion engaging portion protrusion 27 can be formed at the cushion engaging portion distal end portion 26. The cushion engaging portion projection 27 can be brought into contact with the inner surface of the band side end portion 16 of the tank holding band 10, and even if the tips of both band side end portions 16 of the tank holding band 10 are displaced, It can be prevented that it stops at the joint tip portion 26 and comes off from the band cushion 20.

  Further, as shown in FIG. 4, the cushion engagement portion 22 is a continuous portion (a portion bent substantially at a right angle) of the cushion engagement portion base portion 23 and the cushion engagement portion side wall portion 24 of the cushion engagement portion 22. The cushion engaging portion thin portion 25 which is thinner than the thickness of the root portion 23 and the cushion engaging portion side wall portion 24 can be formed. As described above, as shown in FIG. 3, the length of the band-side end portion 16 may be extended and changed depending on the position of the tank holding band 10 in the longitudinal direction.

  In this case, the band-side end portion 16 pushes the cushion engaging portion side wall portion 24, and the bent cushion engaging portion thin portion 25 which is a continuous portion of the cushion engaging portion side wall portion 24 and the cushion engaging portion root portion 23. Is stretched. At this time, the cushion engaging portion thin portion 25 formed to be thin can be flexibly bent, and the cushion engaging thin portion 25 is linearly extended, and the cushion engaging portion distal end portion 26 and the cushion engaging portion are extended. The tip of the band-side end portion 16 can be held by the cushion engaging portion groove portion 28 formed by the portion protrusion 27. For this reason, the cushion engaging portion 22 can be reliably engaged with both the band side end portions 16 of the tank holding band 10 according to the length of the band side end portion 16.

  In the second embodiment of the present invention, as shown in FIG. 5, the cushion engaging portion 22 is longer in the length of the cushion engaging portion distal end portion 26 than the cushion engaging portion 22 in FIG. 4. And the cushion engaging part side wall part 24 can be shortened. Further, unlike the first embodiment, the outer surface of the cushion engaging portion distal end portion 26 is not formed in a slope shape, and the inner surface and the outer surface are formed in parallel.

  A cushion engaging portion protrusion 27 is formed to protrude from the cushion engaging portion distal end portion 26 toward the cushion engaging portion root portion 23, and the cushion engaging portion protruding portion 27, the cushion engaging portion distal end portion 26, and the cushion A cushion engaging portion groove portion 28 having a U-shaped cross section is formed with the engaging portion side wall portion 24, and a portion of the cushion engaging portion groove portion 28 is formed to be large.

  In this case, the unevenness of the band convex portion 15 of the tank holding band 10 is greatly changed, the length of the band side end portion 16 is increased, and the band side end portion 16 is connected to the cushion engaging portion root portion 23 and the cushion engagement portion. Even if the connecting portion of the joint side wall portion 24 is extended, the tip end portions of both the band side end portions 16 of the tank holding band 10 can be held in the cushion engaging portion groove portion 28, and the band cushion 20 is attached to the tank holding band 10. Can be securely held.

  In addition, since the cushion engaging portion side wall portion 24 is shortened, the interval between the cushion engaging portion distal end portion 26 and the band side end portion 16 is reduced so that the cushion engaging portion distal end portion 26 holds the band side end portion 16. It is possible to reduce the gap and reduce the deviation, and to hold it securely. In addition, since the inner surface and the outer surface of the cushion engagement portion distal end portion 26 are parallel, the base portion of the cushion engagement portion distal end portion 26 can be formed thin to reduce the weight of the cushion engagement portion 22 portion. it can.

  In the third embodiment of the present invention, as shown in FIG. 6, the thickness of the cushion engaging portion thin portion 25 is thinner than the thickness of the cushion engaging portion root portion 23 and the cushion engaging portion side wall portion 24. Although formed, the thickness of the cushion engaging portion thin portion 25 is made thicker than that of the cushion engaging portion thin portion 25 of FIG. In this case, the force with which the cushion engaging portion 22 holds the band-side end portion 16 can be increased.

  In the fourth embodiment of the present invention, as shown in FIGS. 7 and 8, in the cushion engaging portion 22 of the band cushion 20, the cushion engaging portion distal end portion 26 is formed short and the cushion engaging portion protruding portion is formed. 27 is not formed. In this case, it is easy to attach the band cushion 20 to the tank holding band 10 in both the general portion (portion of FIG. 7) and the welded portion (portion of FIG. 8) of the band cushion 20, and the weight of the band cushion 20 is reduced. be able to.

  In the fifth embodiment of the present invention, as shown in FIGS. 9 and 10, the plate-like cushion body 21 is bent at an obtuse angle continuous in the longitudinal direction near the center in the width direction. 29. In this embodiment, the bending angle is 170 degrees, but the angle can be changed as appropriate.

  The cushion body bending portion 29 makes it easy to open the band cushion 20 in the width direction, and it is easy to insert the band side end portion 16 into the cushion engaging portion 22 of the band cushion 20 and attach it to the tank holding band 10. It becomes easy. In addition, the cushion engagement portion distal end portion 26 or the cushion engagement portion protrusion portion 27 of the cushion engagement portion 22 of the band cushion 20 is likely to come into contact with the inner surface of the band side end portion 16 of the tank holding band 10. Holding power increases.

2 Fuel tank 10 Tank holding band 11 Band main body 15 Band convex part 20 Band cushion 21 Cushion main body part 22 Cushion engaging part 23 Cushion engaging part base part 24 Cushion engaging part side wall part 25 Cushion engaging part thin part 26 Cushion engaging part Joint part tip part 27 Cushion engagement part protrusion 29 Cushion engagement part bending part

Claims (7)

In the mounting structure of the fuel tank for automobiles attached under the floor panel of the automobile,
The fuel tank is attached to the vehicle body with its outer periphery held by a long tank holding band,
A long band cushion positioned between the tank holding band and the fuel tank along the longitudinal direction of the tank holding band is attached to the tank holding band.
The band cushion is made of rubber or a soft synthetic resin, and has a plate-like cushion body portion that is continuous in the longitudinal direction, and a cushion member that engages both side ends of the tank holding band at both end portions of the cushion body portion. The cushion engaging portion includes a cushion engaging portion root portion extending substantially at a right angle from the cushion main body portion, and a cushion engaging portion extending approximately at a right angle from the cushion engaging portion root portion. Formed from the side wall portion of the joint portion and the front end portion of the cushion engaging portion formed to protrude from the side wall portion of the cushion engaging portion toward the cushion body portion , and bent in a bowl shape so as to cover both side ends of the tank holding band The fuel tank mounting structure is characterized in that the bent portion is formed to be extendable. 2. The fuel tank mounting structure according to claim 1 , wherein a continuous portion of the base portion of the cushion engaging portion and the side wall portion of the cushion engaging portion is formed thinner than an adjacent portion thereof. In the portion where the side end of the tank holding band is extended, the continuous portion of the bent cushion engaging portion base and the side wall portion of the cushion engaging portion extends, and the side end of the tank holding band is engaged with the cushion. The fuel tank mounting structure according to claim 1, wherein the front end portion of the cushion engaging portion of the portion is covered. A cushion engaging portion protrusion that protrudes in the direction from the cushion engaging portion tip to the cushion engaging portion root is formed, the cushion engaging portion protruding portion, the cushion engaging portion tip, and the cushion The fuel tank mounting structure according to any one of claims 1 to 3 , wherein a cushion engaging portion groove portion is formed with the engaging portion side wall portion. 5. The fuel tank according to claim 1, wherein the plate-like cushion body portion is formed with a cushion body bending portion bent at an obtuse angle continuous in the longitudinal direction in the vicinity of the center in the width direction. Mounting structure. The cross section in the width direction of the tank holding band is formed at a band concave portion in which the central portion is recessed in the width direction, a band convex portion swelled in a mountain shape on both sides of the band concave portion, and a side end of the band convex portion. It is formed from the band end, which is, the band projecting portion contacts the inner surface of the cushion main body portion, any one of claims 1 to 5 the band end portion is engaged with the cushion engaging portion 2. A fuel tank mounting structure according to item 1. The fuel tank mounting structure according to any one of claims 1 to 6 , wherein the band cushion is formed of natural rubber or EPDM rubber.

Images