Protective member
The protective member with a multi-layer structure and an inclined surface on the second protective member addresses the issue of water retention and corrosion in vehicle fuel pipes, effectively draining water and preventing component deterioration.
Patent Information
- Application Number
- JP2023202839
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-11-30
- Publication Date
- 2025-06-11
AI Technical Summary
Existing insulators for vehicle fuel pipes, such as those made of urethane, are ineffective in preventing corrosion and deterioration when exposed to water containing snow melting agents, leading to potential metal corrosion of the piping.
A protective member with a multi-layer structure comprising a first protective member and a second protective member, where the second protective member has an inclined surface that creates a gap when separated from the first protective member, allowing water to drain outward and preventing retention inside the protective member.
The solution effectively suppresses water retention and deterioration of the protective member, thereby preventing corrosion of the vehicle components, including fuel pipes, even under high-temperature conditions.
Smart Images

Figure 2025088256000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a protective member for protecting vehicle components.
Background Art
[0002] Generally, a fuel pipe disposed inside a vehicle has an insulator interposed between other vehicle components and the fuel pipe by covering a sound-generating portion with urethane, and a soundproofing effect is achieved.
[0003] Inventions related to conventional insulators are described in, for example, the following patent documents. Patent Document 1 describes a matter of configuring a soundproofing device for a fuel delivery pipe by laminating a fiber aggregate using urethane foam. Patent Document 2 describes a matter of suppressing rust generation in a pipe by laminating a waterproof sheet made of polyurethane foam and vulcanized rubber or a thermoplastic resin as a pipe heat insulation, anticorrosion, and waterproof cover member.
Prior Art Documents
Patent Documents
[0004]
Patent Document 1
Patent Document 2
Summary of the Invention
Problems to be Solved by the Invention
[0005] However, in the inventions described in each of the above-mentioned patent documents, there is room for improvement from the viewpoint of effectively preventing corrosion of the pipe protected by the insulator.
[0006] Specifically, the insulator described above is made of, for example, urethane. Therefore, when water that has entered the interior of the urethane insulator contains a snow melting agent under the usage conditions of a vehicle equipped with piping, there is a risk of accelerating the deterioration of the urethane, making it easier for water to enter, or accelerating the metal corrosion of the piping.
[0007] The present invention has been made in view of such problems, and an object of the present invention is to provide a protective member that can effectively protect vehicle components.
Means for Solving the Problems
[0008] The protective member according to an embodiment of the present invention is a protective member that covers a vehicle component from above, and includes a first protective member and a second protective member disposed inside the first protective member. The first protective member has a first outer surface facing the outside and a first inner surface facing the inside. The second protective member has a second outer surface facing the outside and a second inner surface facing the inside. A part of the second outer surface of the second protective member is an inclined surface that slopes downward toward the side. A gap is formed when the inclined surface of the second protective member is separated from the first inner surface of the first protective member.
Effects of the Invention
[0009] According to an embodiment of the present invention, when water enters from the first protective member toward the second protective member under the usage conditions of the protective member, the water is discharged to the outside via a gap formed between the inclined surface and the first inner surface. Therefore, it is possible to suppress the retention of water inside the protective member and suppress the deterioration of the protective member.
Brief Description of the Drawings
[0010]
Figure 1
Figure 2
Figure 3
Figure 4A
Figure 4B
Figure 5
Figure 6
Embodiments for Carrying Out the Invention
[0011] Hereinafter, a protection member 20 and a vehicle 10 according to an embodiment of the present invention will be described in detail with reference to the drawings. In the following description, the same members are basically denoted by the same reference numerals, and repeated descriptions are omitted.
[0012] FIG. 1 is a cross-sectional view showing a configuration in which the protection member 20 protects the vehicle component member 11. FIG. 2 is an exploded cross-sectional view showing the configuration of the protection member 20. In FIG. 1, the lower part 227 and the lower part 228 of the outer surface of the second protection member 22 are separated from the first inner surface 212 of the first protection member 21. However, the lower part 227 and the lower part 228 of the outer surface of the second protection member 22 may be in close contact with the first inner surface 212 of the first protection member 21.
[0013] The protection member 20 is configured to cover the vehicle component member 11 from above. Here, as the vehicle component member 11, a pipe 111 is exemplified. The pipe 111 is, for example, a steel pipe through which a fluid such as fuel supplied to the engine, such as gasoline or light oil, flows in a vehicle 10 equipped with an engine. The protection member 20 is arranged in a bent state so as to cover the upper part and the side part of the vehicle component member 11. The lower part of the pipe 111 is exposed downward without being covered by the protection member 20.
[0014] Furthermore, the protective member 20 has a multi-layer structure including a first protective member 21 and a second protective member 22. As the materials for the first protective member 21 and the second protective member 22, urethane, glass wool, aerogel, Teflon (registered trademark) resin, etc. can be adopted. In particular, urethane is a relatively soft material, and since the generation of friction and abnormal noise is suppressed, it is suitable as the material for the first protective member 21 and the second protective member 22.
[0015] The first protective member 21 is a substantially plate-shaped member that constitutes the outer portion of the protective member 20. The first protective member 21 is bent in an inverted U shape so as to cover the second protective member 22 from above. Referring to FIG. 2, the first protective member 21 has a first outer surface 211 facing outward and a first inner surface 212 facing inward. The first outer surface 211 and the first inner surface 212 of the first protective member 21 are covered with a water-repellent layer having water repellency. Such a water-repellent layer is, for example, a layer made of a release agent.
[0016] The second protective member 22 is a member that constitutes the inner portion of the protective member 20. The second protective member 22 is disposed inside the first protective member 21. Referring to FIG. 2, the second protective member 22 has a second outer surface 221 facing outward and a second inner surface 222 facing inward. The second outer surface 221 and the second inner surface 222 of the second protective member 22 are covered with a water-repellent layer having water repellency. Such a water-repellent layer is, for example, a layer made of a release agent.
[0017] Referring to FIG. 2, the second outer surface 221 of the second protective member 22 has, from above, an adhesive portion 233, an inclined surface 223, a lower outer surface portion 228, and a lower outer surface portion 227.
[0018] The inclined surface 223 is a part of the second outer surface 221 and is a portion that slopes downward toward the side. The inclined surface 223 has a first inclined surface 224 on the right side and a second inclined surface 225 on the left side. The first inclined surface 224 is a surface that slopes downward toward the right, which is the first direction. The second inclined surface 225 is a surface that slopes downward toward the left, which is the second direction opposite to the first direction. As will be described later, the first inclined surface 224 and the second inclined surface 225 form a gap portion 23 between the first protection member 21 and the second protection member 22 and have a function of guiding water downward.
[0019] The lower part of the outer surface 227 is a surface that continues downward from the lower end of the first inclined surface 224. The lower part of the outer surface 228 is a surface that continues downward from the lower end of the second inclined surface 225. The lower part of the outer surface 227 and the lower part of the outer surface 228 are substantially in close contact with the first inner surface 212 of the first protection member 21.
[0020] The storage area 226 is an area formed by recessing the second protection member 22 from below. The storage area 226 has a width and a depth that can entirely accommodate the pipe 111. In the storage area 226, the pipe 111 is disposed so as to be in close contact with the second inner surface 222.
[0021] Referring to FIG. 1, the gap portion 23 is formed by the inclined surface 223 of the second protection member 22 being separated from the first inner surface 212 of the first protection member 21. The gap portion 23 has a first gap portion 231 and a second gap portion 232. The first gap portion 231 is formed on the right side of the protection member 20, and the second gap portion 232 is formed on the left side of the protection member 20.
[0022] The first gap portion 231 is formed by the first inclined surface 224 of the second protective member 22 being spaced apart from the first inner surface 212 of the first protective member 21. The second gap portion 232 is formed by the second inclined surface 225 of the second protective member 22 being spaced apart from the first inner surface 212 of the first protective member 21. The first gap portion 231 and the second gap portion 232 generally exhibit a crescent-like shape. As will be described later, under the usage conditions of the protective member 20, water penetrates the first protective member 21 and enters inside, and then flows downward via the first gap portion 231 and the second gap portion 232. Thereby, it is possible to suppress water from penetrating the second protective member 22 and reaching the pipe 111, and to suppress corrosion of the pipe 111. Furthermore, it is possible to prevent water from staying in the protective member 20 and to prevent the protective member 20 from hydrolyzing.
[0023] Referring to FIG. 2, the bonding portion 233 is a part of the second outer surface 221 and is a portion for bonding to the first protective member 21. The bonding portion 233 is a flat surface that is located at the uppermost part of the second protective member 22 in the vertical direction and is located approximately at the center of the second protective member 22 in the horizontal direction. Further, in the horizontal direction, the bonding portion 233 is a portion sandwiched between the first inclined surface 224 and the second inclined surface 225. The bonding portion 233 is bonded to the first inner surface 212 of the first protective member 21 via the adhesive 25.
[0024] The first protective member 21 contains an ion exchange resin 24. That is, the first protective member 21 is made of urethane or the like in which the ion exchange resin 24 is dispersed. As the material of the ion exchange resin 24, a cation exchange resin, an anion exchange resin, or a both-ion exchange resin can be adopted. By adopting a both-ion exchange resin as the material of the ion exchange resin 24, both cations and anions contained in the water infiltrating into the protective member 20 can be adsorbed by the ion exchange resin 24. The ion exchange resin 24 adsorbs, for example, calcium ions, chloride ions, sodium ions, etc. Therefore, it is possible to prevent the ions contained in the water penetrating into the protective member 20 from reaching the pipe 111 and to prevent the corrosion of the pipe 111. That is, even if moisture from the outside penetrates the first protective member 21 and reaches the second protective member 22, the ion exchange resin 24 adsorbs each ion contained in the water, so that only water infiltrates into the second protective member 22, and it is possible to suppress each ion from infiltrating into the second protective member 22.
[0025] Referring to FIG. 1, the end portion 234 of the gap portion 23 is exposed downward. The end portion 234 is formed at both the left end portion and the right end portion of the protective member 20. In other words, the end portion 234 is disposed outside the pipe 111 in the width direction. By doing so, as will be described later, the water existing between the first protective member 21 and the second protective member 22 can be drained downward through the end portion 234, and it is possible to prevent the water from coming into contact with the pipe 111.
[0026] Referring to FIG. 1, the water path in the protective member 20 will be described. In FIG. 1, the water path inside the protective member 20 is indicated by dotted arrows.
[0027] First, water penetrates the first protective member 21 made of urethane or the like and infiltrates inside. At that time, since the ion exchange resin 24, which is a both-ion exchange resin for example, is disposed inside the first protective member 21, the ions contained in the water are adsorbed by the ion exchange resin 24. Therefore, it is possible to suppress the ions contained in the water from infiltrating inside the protective member 20.
[0028] As described above, a first gap portion 231 and a second gap portion 232 are formed between the first protective member 21 and the second protective member 22. Further, the first gap portion 231 and the second gap portion 232 face the first inclined surface 224 and the second inclined surface 225. Furthermore, the second outer surface 221 of the second protective member 22 is covered with a water-repellent layer. Therefore, the water that penetrates the first protective member 21 and enters the interior does not stay in the gap between the first protective member 21 and the second protective member 22. That is, the water that penetrates the first protective member 21 and enters the first gap portion 231 and the second gap portion 232 flows inside the first gap portion 231 and the second gap portion 232 while being guided outward in the width direction by the first inclined surface 224 and the second inclined surface 225. Thereafter, the water passes between the lower outer surface 227 and the lower outer surface 228 of the second protective member 22 and the first protective member 21, and is discharged downward from the end portion 234.
[0029] By doing so, even if the water that has entered the protective member 20 from above penetrates the first protective member 21 and enters the interior, it is well drained downward via the gap portion 23 between the first protective member 21 and the second protective member 22. Therefore, the entry of water into the second protective member 22 is suppressed. Accordingly, the reach of water to the pipe 111 is also suppressed, and corrosion of the pipe 111 can be suppressed. Furthermore, the retention of moisture in the first protective member 21 and the second protective member 22 can be suppressed, and hydrolysis of the first protective member 21 and the second protective member 22, which are urethane, can also be prevented.
[0030] Furthermore, when the protective member 20 that protects the pipe 111 is disposed in the engine room, the protective member 20 is exposed to a high temperature of 100°C or higher. In the protective member 20 of the present embodiment, as described above, various ions contained in the infiltrating water are captured by the ion exchange resin 24, and the retention of water is suppressed. Therefore, even in such a high-temperature situation, deterioration of the protective member 20 can be suppressed.
[0031] FIG. 3 is a plan view showing a portion of the vehicle 10 where the protective member 20 is disposed, for example, inside the engine room.
[0032] Here, the protective member 20 is shown by hatching. Below the protective member 20, a pipe 111 (not shown here) is arranged. Above the protective member 20, a part of other pipes 12 and 13 is arranged. That is, the protective member 20 is arranged between the aforementioned pipe 111 and the pipes 12 and 13. Therefore, the pipe 111 does not come into contact with the pipes 12 and 13. Therefore, vibration and noise can be suppressed.
[0033] FIGS. 4A and 4B show the embodied protective member 20. FIG. 4A is a perspective view of the embodied protective member 20 seen from above. FIG. 4B is a perspective view of the protective member 20 shown from below. Here, the cross-sectional view shown in FIG. 1 corresponds to the cutting plane line A-A of FIG. 4A.
[0034] Referring to FIGS. 4A and 4B, the pipe 111 has a curved shape. The shape of the protective member 20 conforms to the curved shape of the pipe 111. Also, as shown in FIG. 4A, the protective member 20 has a shape that wraps the pipe 111 from above. Also, as shown in FIG. 4B, the pipe 111 is exposed downward without being covered by the protective member 20 throughout its length.
[0035] FIG. 5 is a cross-sectional view showing a configuration in which a protective member 201 according to another form protects a battery 112 as a vehicle component 11. FIG. 6 is an exploded cross-sectional view showing a configuration in which the protective member 20 protects the battery 112.
[0036] The basic configuration of the protective member 201 shown in FIGS. 5 and 6 is the same as that of the protective member 20 shown in FIG. 1 and the like. Here, a battery 112 is adopted as the vehicle component 11 protected by the protective member 201. Therefore, as shown in FIG. 6, the battery 112 is stored in the storage area 226 formed in the second protective member 22.
[0037] Referring to FIG. 5, a first gap portion 231 and a second gap portion 232 are formed between the second protection member 22 and the first protection member 21. Further, a first inclined surface 224 and a second inclined surface 225 are formed on the upper surface of the second protection member 22. Therefore, the water that penetrates the first protection member 21 and enters inside reaches the end portion 234 via the first gap portion 231 and the second gap portion 232 and is discharged downward as indicated by the dotted arrow. Therefore, it is possible to prevent a large amount of moisture from reaching the battery 112 and prevent the battery 112 from malfunctioning due to moisture.
[0038] Hereinafter, the technical idea that can be grasped from the above-described embodiment will be described together with its effects.
[0039] The protection member according to an embodiment of the present invention is a protection member that covers a vehicle component from above, and includes a first protection member and a second protection member disposed inside the first protection member. The first protection member has a first outer surface facing the outside and a first inner surface facing the inside. The second protection member has a second outer surface facing the outside and a second inner surface facing the inside. A part of the second outer surface of the second protection member is an inclined surface that slopes downward toward the side. A gap portion is formed by the inclined surface of the second protection member being separated from the first inner surface of the first protection member. According to an embodiment of the present invention, when water enters from the first protection member toward the second protection member under the usage conditions of the protection member, the water is discharged to the outside via a gap portion formed between the inclined surface and the first inner surface. Therefore, it is possible to suppress the retention of water inside the protection member and suppress the deterioration of the protection member.
[0040] In addition, in the protective member according to the embodiment of the present invention, the inclined surface of the second protective member has a first inclined surface and a second inclined surface. The first inclined surface inclines downward in a first direction, and the second inclined surface inclines downward in a second direction opposite to the first direction. The gap portion has a first gap portion and a second gap portion. The first gap portion is formed by the first inclined surface being separated from the first inner surface of the first protective member, and the second gap portion is formed by the second inclined surface being separated from the first inner surface of the first protective member. According to the embodiment of the present invention, since water can be discharged from the protective member via the first gap portion and the second gap portion, it is possible to further suppress the retention of water inside the protective member.
[0041] In addition, in the protective member according to the embodiment of the present invention, the second outer surface of the second protective member has an adhesive portion. The adhesive portion is a portion sandwiched between the first inclined surface and the second inclined surface, and is adhered to the first inner surface of the first protective member via an adhesive. According to the embodiment of the present invention, since the first inclined surface and the second inclined surface are disposed on both sides of the adhesive portion, it is possible to prevent the first gap portion and the second gap portion from being crushed, and to ensure the drainage property by the first gap portion and the second gap portion.
[0042] In addition, in the protective member according to the embodiment of the present invention, the first protective member is characterized by containing an ion exchange resin. According to the embodiment of the present invention, the ion exchange resin contained in the first protective member adsorbs chloride ions and the like, thereby suppressing the intrusion of chloride ions and the like into the inside of the protective member, and suppressing the rusting of vehicle components.
[0043] Further, in the protection member according to the embodiment of the present invention, the first protection member and the second protection member are arranged to cover the upper portion and the side portion of the vehicle component, and the end portion of the gap portion is exposed downward. According to the embodiment of the present invention, water that has entered the interior from the first protection member is discharged downward well through the gap portion formed between the first protection member and the second protection member. Therefore, deterioration of the protection member due to stagnant moisture is suppressed.
[0044] As described above, the embodiments of the present invention have been described. However, the present invention is not limited to this, and can be modified without departing from the gist of the present invention. Further, the above-described embodiments can be combined with each other.
[0045] Referring to FIG. 1, the protection member 20 has a two-layer structure composed of a first protection member 21 and a second protection member 22. However, a multilayer structure of three or more layers can also be adopted as the structure of the protection member 20.
Explanation of reference numerals
[0046] 10 Vehicle 11 Vehicle component 111 Pipe 112 Battery 12 Pipe 13 Pipe 20 Protection member 201 Protection member 21 First protection member 211 First outer surface 212 First inner surface 22 Second protection member 221 Second outer surface 222 Second inner surface 223 Inclined surface 224 First inclined surface 225 Second inclined surface 226 Storage area 227 Lower part of the outer surface 228 Lower part of the outer surface 23 Gap portion 231 First gap portion 232 Second gap portion 233 connecting part 234 end part 24 ion exchange resin 25 adhesive
Claims
1. A protective member that covers a vehicle component from above, comprising a first protective member, and a second protective member disposed inside the first protective member, wherein the first protective member has a first outer surface facing outward and a first inner surface facing inward, the second protective member has a second outer surface facing outward and a second inner surface facing inward, a part of the second outer surface of the second protective member is an inclined surface that slopes downward toward the side, and a gap is formed when the inclined surface of the second protective member is spaced apart from the first inner surface of the first protective member. A protective member characterized by this.
2. The inclined surface of the second protective member has a first inclined surface and a second inclined surface, the first inclined surface slopes downward in a first direction, the second inclined surface slopes downward in a second direction opposite to the first direction, the gap has a first gap and a second gap, the first gap is formed when the first inclined surface is spaced apart from the first inner surface of the first protective member, and the second gap is formed when the second inclined surface is spaced apart from the first inner surface of the first protective member. The protective member according to claim 1, characterized by this.
3. The second outer surface of the second protective member has an adhesive portion, wherein the adhesive portion is a portion sandwiched between the first inclined surface and the second inclined surface and is adhered to the first inner surface of the first protective member via an adhesive. The protective member according to claim 2, characterized by this.
4. The first protective member contains an ion exchange resin. The protective member according to claim 1, characterized by this.
5. The first protective member and the second protective member are disposed so as to cover the upper part and the side part of the vehicle component, and an end of the gap is exposed downward. The protective member according to any one of claims 1 to 4, characterized by this.
Citation Information
Patent Citations
Pipe heat insulating anticorrosive waterproof cover member and execution method thereof
JP1990072296A
Noise insulation equipment for fuel delivery pipe
JP2001263196A