protector

Abstract

To provide a protector that prevents a structure which has moved due to vehicle collision accident from colliding directly with a tank attachment flange of a fuel tank.SOLUTION: A protector 40 comprises a flat plate part 42 in which an anti-vibration rubber housing part 46 is formed, and a flange protection part 44. The flange protection part 44 is extended to such a length that covers sides of a tank attachment flange 12 from below to above when the protector 40 is attached to the tank attachment flange 12 from below. The anti-vibration rubber housing part 46 has an outer peripheral frame part 48 in which a guide part 47 that enables accommodation of a plurality of projections 23 of at least two kinds of lower anti-vibration holding member metal parts 22 including the plurality of projections 23 that are interposed between the same and a lower anti-vibration rubber 31.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a protector for protecting a tank mounting flange, which is a side portion of a vehicle fuel tank and has a tank mounting hole formed therein for mounting the fuel tank below a floor panel of the vehicle. [Background technology]

[0002] In a vehicle fuel tank, a tank body that stores fuel such as gasoline or diesel has a plurality of tank mounting flanges formed at intervals on the outer periphery of the side of the tank body, each flange having tank mounting holes for mounting the fuel tank below the floor panel of the vehicle. Bolts are inserted into each tank mounting hole and fastened to a tank bracket on the floor panel of the vehicle, fixing the fuel tank to the vehicle.

[0003] There are cases where structures are mounted around the fuel tank. For example, in a hybrid vehicle, this includes the motor that drives the vehicle and its bracket. These structures around the fuel tank may move in the event of a vehicle collision and collide with the tank mounting flange of the fuel tank. In this case, the fuel tank may be damaged starting from the tank mounting flange.

[0004] Patent Document 1 discloses a vehicle fuel tank fixing structure that prevents structures displaced during a vehicle collision from directly colliding with a tank mounting flange of a fuel tank. As shown in Fig. 7, the vehicle includes a fuel tank 100 having a tank mounting flange 120 on the side of a tank body 110, and a heat insulating protector 500 having a heat insulating material 530 attached to the tank body 110 side that covers the underside of the tank body 110 and the side surface below the tank mounting flange 120. The heat insulating protector 500 has a protector mounting flange 510 that extends along and below the tank mounting flange 120. The tank mounting flange 120 and the protector mounting flange 510 are fastened to a tank bracket 600 fixed to the vehicle body with bolts 260 and nuts 270. The protector mounting flange 510 has an extension 520 that extends upward to cover the end of the tank mounting flange 120. Furthermore, since the end of the tank mounting flange 120 of the fuel tank 100 is covered by the extension portion 520 of the heat insulating protector 500, a structure 700 that has moved due to a vehicle collision accident can be prevented from directly colliding with the tank mounting flange 120 of the fuel tank 100.

[0005] Furthermore, if the tank mounting flange 120 is directly attached to the tank bracket 600 with the bolts 260, the fuel in the fuel tank 100 will flow while the vehicle is running, generating a flow noise that will be transmitted through the floor panel into the passenger compartment, resulting in an unpleasant noise. For this reason, when the tank mounting flange 120 of the fuel tank 100 is attached to the tank bracket 600, vibration-proof rubber is fastened at the same time (see, for example, Patent Document 2). [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Publication No. 2020-62978 [Patent Document 2] Japanese Patent Application Publication No. 2017-89838 Summary of the Invention [Problem to be solved by the invention]

[0007] In Patent Document 1, the end of the tank mounting flange 120 is protected by covering it with an extension 520 of a heat insulating protector 500, but some vehicles are not equipped with a heat insulating protector. An object of the present invention is to provide a protector that prevents a structure that moves in a vehicle collision accident from directly colliding with a tank mounting flange of a fuel tank in a vehicle not equipped with a heat insulating protector. [Means for solving the problem]

[0008] In order to solve the above problem, the present invention of claim 1 is a protector that protects a tank mounting flange that is formed on the side of the tank body of a vehicle fuel tank and that has a tank mounting hole for mounting the fuel tank below the floor panel of the vehicle, the protector having a flat plate portion in which a vibration-damping rubber accommodating portion is formed, and a flange protecting portion that is connected to the end of the flat plate portion and is formed on the same side as the vibration-damping rubber accommodating portion, the flange protecting portion extending to a length that covers from the bottom to the top of the side of the tank mounting flange when the protector is attached to the tank mounting flange from below, and the vibration-damping rubber accommodating portion is a protector that has an outer peripheral frame portion in which guide portions are formed that can accommodate protrusions of at least two types of vibration-damping material metal portions that have multiple protrusions interposed between them and the vibration-damping rubber.

[0009] In the present invention of claim 1, the protector comprises a flat plate portion in which an anti-vibration rubber accommodating portion is formed, and a flange protecting portion that is connected to the end of the flat plate portion and formed on the same side as the anti-vibration rubber accommodating portion, and the flange protecting portion is extended to a length that covers the upper part of the side of the tank mounting flange from the lower part when the protector is attached to the tank mounting flange from below, thereby preventing structures that move in a vehicle collision accident from directly colliding with the tank mounting flange of the fuel tank.

[0010] Furthermore, the vibration-damping rubber accommodating portion that accommodates the vibration-damping rubber has an outer frame portion on which guide portions are formed that enable the accommodation of the protrusions of at least two types of vibration-damping metal parts that have multiple protrusions interposed between them and the vibration-damping rubber, and therefore the outer frame portion on which guide portions are formed can reliably position the vibration-damping metal parts.

[0011] Furthermore, because the guide portion can accommodate the protrusions of two or more types of metal vibration-isolating members, one protector can accommodate two or more types of metal vibration-isolating members having multiple protrusions. As a result, it is no longer necessary to produce multiple types of protectors for each of the protrusions on the metal vibration-isolating members, thereby reducing the cost of the protector.

[0012] The present invention of claim 2 is the protector of claim 1, wherein the guide portion is formed with wall portions that separate the guide portion at the positions of the respective protrusions of the vibration-isolating metal portion.

[0013] In the present invention of claim 2, a wall portion is formed on the inside of the guide portion to separate the metal vibration-damping member at the position of each protrusion of the metal vibration-damping member, so that the metal vibration-damping member can be reliably positioned and the metal vibration-damping member can be prevented from rotating within the guide portion when the bolt is tightened.

[0014] The present invention of claim 3 is a protector according to the invention of claim 1 or claim 2, in which a claw portion is formed on the inside of the guide portion to abut against the peripheral tip of the protrusion of the vibration-damping metal portion.

[0015] In the present invention of claim 3, since the claw portions are formed to abut the peripheral tip portions of the protrusions of the metal vibration-isolating member, the metal vibration-isolating member can be reliably fixed inside the vibration-isolating rubber accommodating portion. [Effects of the Invention]

[0016] A protector that protects a tank mounting flange that is formed on the side of the tank body of a vehicle fuel tank and that has a tank mounting hole for mounting the fuel tank below the vehicle floor panel, the protector having a flat plate portion in which an anti-vibration rubber accommodating portion is formed, and a flange protecting portion that is connected to the end of the flat plate portion and is formed on the same side as the anti-vibration rubber accommodating portion, and the flange protecting portion is extended to a length that covers from below to above the side of the tank mounting flange when the protector is attached to the tank mounting flange from below, thereby preventing structures that move in a vehicle collision accident from directly colliding with the tank mounting flange of the fuel tank.

[0017] Furthermore, the vibration-damping rubber accommodating portion that accommodates the vibration-damping rubber has an outer frame portion on which guide portions are formed that enable the accommodation of the protrusions of at least two types of vibration-damping metal parts that have multiple protrusions interposed between them and the vibration-damping rubber, and therefore the outer frame portion on which guide portions are formed can reliably position the vibration-damping metal parts.

[0018] Furthermore, because the guide portion can accommodate the protrusions of two or more types of metal vibration-isolating members, one protector can accommodate two or more types of metal vibration-isolating members having multiple protrusions. As a result, it is no longer necessary to produce multiple types of protectors for each of the protrusions on the metal vibration-isolating members, thereby reducing the cost of the protector. [Brief explanation of the drawings]

[0019] [Figure 1] FIG. 2 is a perspective view of a fuel tank used in an embodiment of the present invention. [Figure 2] 2 is a plan view of the mounting portion in FIG. 1 in a state where the tank mounting flange of the fuel tank according to the embodiment of the present invention is mounted on the tank bracket, seen from above the vehicle, with the tank bracket seen through. FIG. [Figure 3] 3 is a cross-sectional view taken along the line AA in FIG. 2. [Figure 4] 10A and 10B are plan views of a vibration-isolating metal part (lower vibration-isolating metal part) used in an embodiment of the present invention, where (a) has two protrusions and (b) has three protrusions. [Figure 5] 1 is a plan view of a protector used in an embodiment of the present invention, viewed from the vibration-isolating rubber housing portion side. [Figure 6] FIG. 5 is a plan view of the vibration-isolating member metal part (lower vibration-isolating member metal part) and the vibration-isolating rubber (lower vibration-isolating rubber) in FIG. 4(b) when housed. [Figure 7] FIG. 1 is a cross-sectional view of a part of a conventional fuel tank and its surrounding area when the fuel tank is attached to a floor panel (Patent Document 1). DETAILED DESCRIPTION OF THE INVENTION

[0020] An embodiment of the present invention will be described with reference to Figs. 1 to 6. A fuel tank 10 used in this embodiment of the present invention is made of synthetic resin, and as shown in Fig. 1, a plurality of tank mounting flanges 12 are formed on a side portion 13 of a tank body 11 of the fuel tank 10. Tank mounting holes 14 are formed in the tank mounting flanges 12. The tank mounting holes 14 in the tank mounting flanges 12 are fixed to a tank bracket 60 that is attached to a floor panel of the vehicle body, as will be described later. This embodiment will describe the case in Fig. 1 where the two tank mounting holes 14 at the rear of the vehicle are attached to the tank bracket 60 of the vehicle body.

[0021] 2 is a plan view of the mounting portion in FIG. 1, seen from above the vehicle, with the tank mounting flange 12 of the fuel tank 10 mounted to the tank bracket 60 of the floor panel (not shown), and is a perspective view of the tank bracket 60. Also, FIG. 3 is a cross-sectional view taken along line AA in FIG. 2.

[0022] As shown in Figure 3, the tank mounting flange 12 is sandwiched at the top and bottom by upper vibration-isolating rubber 30 and lower vibration-isolating rubber 31, which are further sandwiched at the top and bottom by metal members. The upper and lower metal members and the upper and lower vibration-isolating rubbers 30 and 31 between them are collectively referred to as vibration-isolating members 20. Therefore, the upper metal member is the upper vibration-isolating member metal part 21, and the lower metal member is the lower vibration-isolating member metal part 22. For this reason, the tank mounting flange 12 can be attached to the tank bracket 60 via the vibration-isolating members 20, thereby preventing vibration of the fuel tank 10.

[0023] The upper vibration-isolating metal part 21 has a trumpet shape with the upper side of the cylinder expanding upward. The lower vibration-isolating metal part 22 has a cylindrical part 22b that is closed at the top and has a through-hole 22c formed in its center. The lower end of the cylindrical part 22b of the lower vibration-isolating metal part 22 has a flange part 22a that expands laterally. In addition, a protrusion 23 is formed on the flange part 22a. The lower side of the cylinder of the upper vibration-isolating metal part 21 engages with the outside of the cylindrical part 22b of the lower vibration-isolating metal part 22. Figure 4 is a plan view of the lower vibration-isolating metal part as seen from the through-hole 22c side. In Figure 4(a), two protrusions 23 are formed at positions 180° apart, and in Figure 4(b), three protrusions 23 are formed at intervals of 120°. The circumferential width W of the protrusions 23 is the same in both Figures 4(a) and 4(b). In addition, the "metal part of the vibration-isolating member" in the claims corresponds to the "lower metal part of the vibration-isolating member 22."

[0024] The vibration-isolating rubber is divided into upper and lower halves, an upper vibration-isolating rubber 30 and a lower vibration-isolating rubber 31. The upper vibration-isolating rubber 30 is formed in a ring shape with a substantially rectangular cross section. The upper and lower surfaces of the upper vibration-isolating rubber 30 are formed flat.

[0025] The lower vibration-isolating rubber 31 is formed in a ring shape, similar to the upper vibration-isolating rubber 30. The lower vibration-isolating rubber 31 has a cylindrical main body 32 with a substantially rectangular cross section, and an upper extension 33 that extends cylindrically upward from the top surface of the center side of the main body 32. The top surface of the upper extension 33 of the lower vibration-isolating rubber 31 and the bottom surface of the main body 32 are formed flat. The "lower vibration-isolating rubber 31" corresponds to the "vibration-isolating rubber" in the claims.

[0026] Fig. 5 is a plan view of the protector used in this embodiment, as seen from the side of a vibration-proof rubber housing portion 46, which will be described later. As shown in Fig. 5, protector 40 has a first arc-shaped portion 41 at one end that follows the shape of side portion 13 of tank body 11 of fuel tank 10 (portion Y in Fig. 2). It also has a flat plate portion 42 that spreads out in a fan shape from first arc-shaped portion 41. The end of flat plate portion 42 opposite first arc-shaped portion 41 has a second arc-shaped portion 43 that follows the shape of tank mounting flange 12 (portion Z in Fig. 2).

[0027] As shown in Fig. 3, the second arc-shaped portion 43 is formed with a flange protection portion 44 that extends long enough to cover the upper side of the side of the tank mounting flange 12 from below when the protector 40 is attached to the tank mounting flange 12 from below. In Fig. 3, the flange protection portion 44 is formed to extend up to the upper surface side of the upper vibration-isolating rubber 30. Also, in Fig. 2, the flange protection portion 44 does not cover the entire area on the Z side of the tank mounting flange 12, but it may be made to cover the entire area. The coverage range can be determined depending on the position, size, etc. of the structure to be disposed near the tank mounting flange 12.

[0028] As shown in Fig. 3, the first arc-shaped portion 41 is formed with a tank body side protection portion 51 that extends in the opposite direction to the flange protection portion 44. By forming the tank body side protection portion 51, it is possible to prevent the end of the first arc-shaped portion 41 from biting into the side portion 13 of the tank body 11 in the event of a collision accident if the tank body side protection portion 51 is not formed.

[0029] A protector mounting hole 45 is formed in the flat plate portion 42 at a position that coincides with the tank mounting hole 14 when the protector 40 is attached to the tank mounting flange 12 from below. The protector mounting hole 45 is also formed inside a vibration-proof rubber housing portion 46, which will be described later.

[0030] The vibration-isolating rubber accommodating portion 46, which accommodates the lower vibration-isolating member metal portion 22 and the lower vibration-isolating rubber 31, is formed on the same side as the flange protection portion 44 of the flat plate portion 42. The vibration-isolating rubber accommodating portion 46 is approximately concentric with the tank mounting hole 14. The vibration-isolating rubber accommodating portion 46 has a guide portion 47 that can accommodate both the two protrusions 23 shown in FIG. 4(a) and the three protrusions 23 shown in FIG. 4(b), and an outer peripheral frame portion 48 that is connected to the guide portion 47 and can accommodate the flange portion 22a of the lower vibration-isolating member metal portion 22 excluding the protrusions 23.

[0031] 5, the guide portion 47 is formed in three locations: a first guide portion 47a, a second guide portion 47b, and a third guide portion 47c. The circumferential width of the first guide portion 47a is formed to be a width that allows the width W of the protrusion 34 to be inserted therein. The circumferential widths of the second guide portion 47b and the third guide portion 47c are formed to be a width that allows both the protrusion 23 of FIGS. 4(a) and 4(b) to be housed therein, i.e., a width that is more than twice the width W of the protrusion 23.

[0032] 4(a) and 4(b), a wall portion 49 is formed in the second guide portion 47b and the third guide portion 47c, dividing the second guide portion 47b and the third guide portion 47c into two portions, with a 180° interval between the left side of the second guide portion 47b and the left side of the third guide portion 47c, and a 120° interval between the right side of the second guide portion 47b and the right side of the third guide portion 47c.

[0033] Furthermore, in the guide part 47, when the flange part 22a of the lower vibration-isolating member metal part 22 is attached to the vibration-damping rubber receiving part 46, a claw part 50 is formed at a location positioned approximately in the center of the peripheral tip part 24 of the protrusion part 23. The lower part of the claw part 50 does not abut against the flat part 42, and there is a space between the claw part 50 and the flat part 42 so that the protrusion part 23 formed on the flange part 22a of the lower vibration-isolating member metal part 22 can fit in between the claw part 50 and the flat part 42, as shown in Figure 3.

[0034] The protector 40 is made of polyacetal (POM), which has mechanical properties such as rigidity and toughness, and high temperature characteristics, but may also be made of other resins.

[0035] As a result, when accommodating flange portion 22a of lower vibration-isolating member metal part 22 having two protrusions 23 in Fig. 4(a), the left side of wall part 49 of second guide part 47b and the left side of wall part 49 of third guide part 47c in Fig. 5 are used, and when accommodating flange portion 22a of lower vibration-isolating member metal part 22 having three protrusions 23 in Fig. 4(b), the right side of wall part 49 of first guide part 47a, second guide part 47b and the right side of wall part 49 of third guide part 47c are used. Fig. 6 is a plan view of the protector used in an embodiment of the present invention when the lower vibration-isolating member metal part and lower vibration-isolating rubber of Fig. 4(b) are accommodated in Fig. 5.

[0036] Therefore, the vibration-damping rubber accommodating portion 46 of one protector 40 can accommodate lower vibration-damping member metal portions 22 having different numbers of protrusions 23, making it possible to share the protector 40 and reducing the cost of the protector 40.

[0037] Furthermore, the second guide portion 47b and the third guide portion 47c are formed with wall portions 49 that separate the positions of the protrusions 23 of the flange portions 22a of the two types of lower vibration-damping member metal portions 22, thereby ensuring reliable positioning of the lower vibration-damping member metal portions 22 and preventing the protector 40 from rotating around the fastening center axis within the guide portion 47 when the bolts are fastened as described below.

[0038] Furthermore, the claws 50 can reliably fix the lower vibration-isolating member metal part 22 inside the vibration-isolating rubber accommodating part 46 .

[0039] Next, a process of attaching the tank mounting flange 12 to the tank bracket 60 using the lower vibration-isolating metal part 22 having the flange part 22a with three protrusions 23 as shown in FIG. 4(b) will be described.

[0040] First, the flange portion 22a of the lower vibration-isolating member metal part 22 is pushed into and fixed in the vibration-isolating rubber receiving portion 46 of the protector 40. The protrusions 23 are inserted into the guide portions 47 of the vibration-isolating rubber receiving portion 46. At this time, the claws 50 formed inside the guide portions 47 are made of resin, and so the claws 50 bend to push in the protrusions 23, allowing the protrusions 23 to be inserted between the claws 50 and the flat plate portion 42, and the lower vibration-isolating member metal part 22 can be attached to the protector 40. Because there are three protrusions 23 on the flange portion 22a of the lower vibration-isolating member metal part 22, the protrusions 23 are attached to the first guide portion 47a, the right side of the second guide portion 47b, and the right side of the third guide portion 47c.

[0041] Next, the lower vibration-isolating rubber 31 is attached to the vibration-isolating rubber accommodating portion 46 of the protector 40. The main body portion 32 of the lower vibration-isolating rubber 31 is inserted into the cylindrical portion 22b of the lower vibration-isolating member metal portion 22 toward the protector 40 side, and then moved downward to attach it inside the vibration-isolating rubber accommodating portion 46.

[0042] Next, the lower vibration-isolating member metal part 22, to which the protector 40 and lower vibration-isolating rubber 31 are attached, is inserted into the tank mounting hole 14. At this time, the upper extension part 33 of the lower vibration-isolating rubber 31 is inserted into the tank mounting hole 14, and the upper surface of the main body part 32 of the lower vibration-isolating rubber 31 abuts against the lower surface of the tank mounting hole 14.

[0043] Next, the upper vibration-isolating rubber 30 is placed on the upper surface around the tank mounting hole 14, and then the cylindrical portion of the upper vibration-isolating member metal part 21 is fitted into the tubular part 22b of the lower vibration-isolating member metal part 22 to attach it. As the cylindrical portion of the upper vibration-isolating member metal part 21 is inserted into the inner periphery of the upper vibration-isolating rubber 30, the upper vibration-isolating member metal part 21 comes into contact with the top surface of the upper vibration-isolating rubber 30, compressing it and holding the upper vibration-isolating rubber 30 in place.

[0044] Next, as shown in Fig. 3, the truncated cone tubular metal fitting 25 is inserted from below into the tubular portion 22b of the lower vibration-isolating member metal portion 22, and the protector presser fitting 26 is inserted into the protector mounting hole 45 of the protector 40. After that, a bolt 71 is inserted into the protector mounting hole 45 of the protector 40 via a washer 70. The bolt 71 is then passed through the through-hole 22c of the lower vibration-isolating member metal portion 22 and inserted into the hole of the tank bracket 60, and tightened with a mounting nut 72 (Fig. 3). This tightening allows the upper vibration-isolating member metal portion 21, the lower vibration-isolating member metal portion 22, and the protector 40 to be firmly compressed and clamped.

[0045] At this time, the second arc-shaped portion 43 and the flange protection portion 44 of the protector 40 are formed in a shape that follows the shape Z (Figure 2) of the tank mounting flange 12, so that the protector 40 can be prevented from rotating when the bolt 71 is tightened.

[0046] This allows the fuel tank 10 to be attached to the tank bracket 60 via the vibration-isolating member 20, which has the tank mounting flange 12 sandwiched between the upper vibration-isolating rubber 30 and the lower vibration-isolating rubber 31, preventing vibrations and noise from being transmitted to the floor. In addition, the flange protection portion 44 of the protector 40 prevents any structure that moves in the event of a rear-end collision from directly colliding with the tank mounting flange 12 of the fuel tank 10.

[0047] In addition to the inventions described in the claims, the present invention includes the inventions in the following aspects. A protector as described in any one of claims 1 to 3, wherein a tank body side protection portion extending in the opposite direction to the flange protection portion is formed at the end of the flat plate portion opposite to the flange protection portion.

[0048] By forming the tank body side protective portion, in the event of a collision accident, if the tank body side protective portion is not formed, the end of the first arc-shaped portion (figure number 41 in Figure 5) can be prevented from digging into the side of the tank body.

[0049] The present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the object of the present invention.

[0050] In the above embodiment, the protector 40 is attached to the tank mounting flange 12 on the vehicle rear side of the tank body 11, but it may also be attached to the tank mounting flange 12 on the vehicle front side of the tank body 11. Furthermore, if the tank mounting flange is formed in the vehicle width direction, it can also be attached to the above-mentioned location. Note that fuel tanks are often mounted diagonally below the rear seats, and structures such as exhaust members, a motor that drives the vehicle in a hybrid vehicle, and its bracket are located on the vehicle rear side of the fuel tank, so a collision with these structures is likely to occur at the tank mounting flange formed on the vehicle rear side of the fuel tank. Therefore, it is preferable to attach the protector to at least the tank mounting flange 12 on the vehicle rear side.

[0051] In the above embodiment, the second guide portion 47b and the third guide portion 47c each comprise one guide portion divided by the wall portion 49, but depending on the width W of the protrusion portion 23 of the flange portion 22a of the lower vibration-damping member metal portion 22, the second guide portion 47b and the third guide portion 47c may each be divided into two guide portions, which together with the first guide portion 47a may make a total of five guide portions.

[0052] The above embodiments have been described for cases where the number of protrusions 23 on the flange portion 22a of the lower vibration-damping member metal portion 22 is 2 and 3, but the present invention can also be applied to flange portions 22a of the lower vibration-damping member metal portion 22 having other numbers of protrusions. [Explanation of symbols]

[0053] 10. Fuel Tank 11 Tank body 12 Tank mounting flange 14 Tank mounting hole 20 Vibration-proof member 22 Lower vibration-isolating member metal part 22 22a Flange 22b Cylindrical part 22c through hole 23 Protrusion 24 Circumferential tip 30 Upper vibration-isolating rubber 31 Lower vibration isolating rubber 40 Protector 42 Flat plate part 44 Flange protection part 45 Protector mounting hole 46 Anti-vibration rubber housing 47 Guide section 48 Outer frame 49 Wall 50 Claw 51 Tank side protection part

Claims

1. A protector for protecting a tank mounting flange formed on a side of a tank body of a vehicle fuel tank, the tank mounting flange having a tank mounting hole for mounting the fuel tank below a floor panel of the vehicle, The protector includes a flat plate portion in which a vibration-isolating rubber receiving portion is formed, a flange protection portion connected to an end of the flat plate portion and formed on the same side as the vibration-proof rubber accommodating portion, the flange protection portion extends to a length that covers the upper side of the side surface of the tank mounting flange from the lower side when the protector is attached to the tank mounting flange from the lower side, A protector characterized in that the vibration-damping rubber accommodating portion has an outer frame portion on which guide portions are formed that enable the accommodation of the protrusions of at least two types of vibration-damping metal parts having multiple protrusions interposed between the vibration-damping rubber and the metal parts.

2. 2. The protector according to claim 1, wherein the guide portion is formed with a wall portion that separates the metal vibration-isolating member at the position of each of the protrusions.

3. 3. The protector according to claim 1, wherein the guide portion has a claw portion formed on an inner side thereof, the claw portion contacting a peripheral tip of the protrusion of the vibration-isolating metal portion.

Images