Vehicle-mounted bracket
By designing the integrated molded bracket main body and sealing part and using soft material, the sealing part is solved by insufficient sealing performance of the existing vehicle-mounted bracket, achieving a more efficient sealing effect and a simplified installation process.
Patent Information
- Application Number
- CN202380069300.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-09-29
- Filing Date
- 2023-08-09
- Publication Date
- 2025-07-04
AI Technical Summary
There is a gap between the existing vehicle-mounted brackets, the plastic part and the vehicle-mounted camera, which makes water easy to immerse and insufficient sealing performance.
A vehicle-mounted bracket is designed, and a structure of integrated molding of the main body part and the sealing part of the bracket are composed of soft materials, including flange portions, legs, water stop portions and crimping portions. The sealing portion covers the flange portions and stops water from the installation panel, and crimping portions and car-mounted equipment to reduce gaps to improve sealing performance.
Improve the sealing performance of the vehicle-mounted bracket between the installation panel and the vehicle-mounted equipment, reduce the number of parts, simplify installation and water stop operations, and enhance the sealing effect.
Smart Images

Figure CN120265503A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to a vehicle bracket for mounting a vehicle-mounted device on a mounting panel. Background Art
[0002] Vehicle-mounted devices such as a vehicle-mounted camera for an electronic interior rearview mirror, a vehicle-mounted camera for a rearview monitor, and a nozzle for camera cleaning are mounted on a vehicle through a vehicle bracket. An example of the vehicle bracket includes a plastic part and an elastomer part (for example, refer to Patent Document 1).
[0003] The plastic part has a covered cylindrical shape having a lid part and a flange part. The lid part and the flange part each have a through hole. The vehicle-mounted camera is inserted through the through hole of the lid part and fastened to the lid part by a fastening screw. The plastic part is detachably fixed to the vehicle body metal plate by mounting claws inserted through the through holes of the flange part.
[0004] The elastomer part is integrally formed with the flange part so as to block the gap between the inner wall defining the through hole of the flange part and the mounting claw. The elastomer part fills the gap between the flange part and the vehicle body metal plate on the outer periphery of the plastic part. The elastomer part prevents water from entering through the through hole of the flange part and through the gap between the flange part and the vehicle body metal plate.
[0005] Prior Art Documents
[0006] Patent Documents
[0007] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2012-35693 Summary of the Invention
[0008] Problems to be Solved by the Invention
[0009] The above-described vehicle bracket screws the vehicle-mounted camera to the lid part of the plastic part. Since the plastic part and the vehicle-mounted camera are fastened by the fastening screw, there are gaps between the fastening screw and the plastic part, between the plastic part and the vehicle-mounted camera, and between the vehicle-mounted camera and the fastening screw. The gap caused by the fastening of the plastic part and the vehicle-mounted camera is more likely to allow water to enter through the gap than the gap filled by the elastomer part. Therefore, there is still room for improvement in the sealing performance of the vehicle bracket between the vehicle body metal plate and the vehicle-mounted device.
[0010] Means for Solving the Problems
[0011] According to an aspect of the present disclosure, an in-vehicle bracket is an in-vehicle bracket for mounting an in-vehicle device on a mounting panel of a vehicle, and the in-vehicle bracket includes: a bracket main body; and a sealing portion that is integrally formed with the bracket main body and made of a soft material. The bracket main body includes: a flange portion having a mounting portion configured to mount the in-vehicle device; and a leg portion having a fastening portion configured to be mounted on the mounting panel and extending from the flange portion. The sealing portion is configured to cover the flange portion and expand around the flange portion, and includes: a water-stop portion disposed around the flange portion to stop water between the flange portion and the mounting panel; and a crimping portion having a mounting hole for mounting the in-vehicle device on the mounting portion and configured to stop water between the flange portion and the in-vehicle device around the mounting hole.
[0012] According to the above structure, the in-vehicle bracket is interposed between the mounting panel and the in-vehicle device. The water-stop portion of the in-vehicle bracket stops water between the flange portion and the mounting panel. The mounting hole of the in-vehicle bracket can mount the in-vehicle device on the bracket main body. In addition, the mounting hole of the in-vehicle bracket is disposed in the sealing portion in such a manner that the sealing portion stops water between the flange portion and the in-vehicle device. Thus, the sealing portion integrally formed with the bracket main body stops water between the flange portion and the mounting panel, and between the flange portion and the in-vehicle device. In particular, since the sealing portion stops water between the flange portion and the in-vehicle device, the sealing performance of the in-vehicle bracket is improved.
[0013] In the above in-vehicle bracket, it is also possible that the crimping portion of the sealing portion is integrally formed with the water-stop portion. According to this structure, it is difficult to form a gap between the bracket main body and the sealing portion. Therefore, the sealing performance between the bracket main body and the sealing portion is also improved. In addition, compared with the case where the bracket main body is a component different from the sealing portion, the handling of the in-vehicle bracket is also easier. And, since the portion having the mounting hole and the water-stop portion are integrated, the handling of the in-vehicle bracket becomes easier.
[0014] In the above in-vehicle bracket, it is also possible that the crimping portion is disposed around the entire circumference of the mounting hole and protrudes so as to be crimped to the in-vehicle device. According to this structure, the water-stop between the in-vehicle device and the flange portion is improved by the crimping portion.
[0015] In the above in-vehicle bracket, it is also possible that the water-stop portion is disposed on the flange portion side rather than the fastening portion in the extending direction of the leg portion. According to this structure, since the water-stop portion is disposed at a position on the flange portion side rather than the fastening portion, the water-stop portion is easily pressed against the surface of the mounting panel in a state where the in-vehicle bracket is mounted on the mounting panel. Therefore, the sealing performance of the water-stop portion between the flange portion and the mounting panel is improved.
[0016] In the above vehicle-mounted bracket, alternatively, the water stop portion is a lip portion, and the lip portion includes: a lip base end portion that is joined to the bracket main body portion; and a lip front end portion that extends from the lip base end portion toward the outside of the bracket main body portion. Moreover, alternatively, the lip front end portion does not have a parting line on the surface that contacts the mounting panel, and the boundary between the lip base end portion and the lip front end portion is a closed-loop parting line that surrounds the flange portion in the portion facing the mounting panel.
[0017] According to the above structure, the surface of the lip front end portion that contacts the mounting panel does not have a parting line. Therefore, compared with the case where the lip front end portion has a parting line, the sealing performance of the water stop portion between the flange portion and the mounting panel is improved. In addition, the boundary between the lip base end portion and the lip front end portion is a closed-loop parting line. Therefore, even for a water stop portion having an undercut shape, in the demolding of the lip front end portion, forced demolding such as pulling out the lip front end portion from a mold that follows the outer shape of the lip front end portion can be performed.
[0018] In the above vehicle-mounted bracket, alternatively, in the portion facing the mounting panel, there are parting lines arranged along the circumferential direction of the flange portion.
[0019] According to the above structure, even for a water stop portion having an undercut shape, in the demolding of the lip base end portion, the sliding of a split mold that follows the outer shape of the lip base end portion can be performed. Therefore, manufacturing that coordinates with the forced demolding of the lip front end portion can be adopted at the lip base end portion. As a result, the design load of the lip front end portion that requires forced demolding can be reduced.
[0020] In the above vehicle-mounted bracket, alternatively, the water stop portion is a lip portion, and the lip portion includes: a lip base end portion that is joined to the bracket main body portion; and a lip front end portion that extends from the lip base end portion toward the outside of the bracket main body portion, and the joint portion of the lip base end portion with the bracket main body portion has an uneven shape that repeats in the circumferential direction of the flange portion.
[0021] According to the above structure, correspondingly to the repetition of the unevenness in the joint portion, the contact area between the joint portion of the lip base end portion and the bracket main body portion increases. Therefore, the strength of joining the water stop portion to the bracket main body portion is improved.
[0022] In the above vehicle-mounted bracket, it is also possible that the above-mentioned leg portion has a plurality of limiting members arranged in the circumferential direction of the above-mentioned leg portion. The plurality of limiting members protrude outward on the outer peripheral surface of the above-mentioned leg portion. The plurality of limiting members are configured to determine the relative position of the above-mentioned leg portion with respect to the surface of the above-mentioned mounting panel. The water-stop portion is a lip portion, and the lip portion has: a lip base end portion that is joined to the above-mentioned bracket main body portion; and a lip front end portion that extends from the above-mentioned lip base end portion toward the outside of the above-mentioned bracket main body portion. The above-mentioned leg portion has a receiving portion provided in the entire circumferential direction of the above-mentioned leg portion. The receiving portion extends to the above-mentioned lip base end portion. On the other hand, the plurality of limiting members do not extend to the above-mentioned lip base end portion, so that the front end of the above-mentioned receiving portion is disposed outside the front ends of the plurality of limiting members.
[0023] According to the above structure, the lip base end portion is separated from the limiting member toward the outside. Therefore, the boundary between the lip base end portion and the leg portion is determined by the receiving portion in the entire circumferential direction. As a result, the base end of the range of flexure in the lip portion is determined by the receiving portion in the entire circumferential direction. In addition, when the mounting panel abuts against the limiting member, the vertical interval between the mounting panel and the lip base end portion also becomes constant in the entire circumferential direction. Therefore, it is possible to suppress the non-uniformity of the stress against bending acting on the lip base end portion in the circumferential direction, thereby enabling the surface pressure acting on the lip front end portion to be uniformized in the circumferential direction and suppressing the reduction of the local surface pressure in the circumferential direction.
[0024] Advantages of the Invention
[0025] The above vehicle-mounted bracket can improve the sealing performance between the mounting panel and the vehicle-mounted device. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a perspective view of the vehicle-mounted bracket according to the first embodiment as viewed from a viewpoint opposite to the mounting portion.
[0027] Figure 2 It is a perspective view of the vehicle-mounted bracket with a vehicle-mounted device mounted thereon.
[0028] Figure 3 It is a top view showing the structure of the sealing portion facing the mounting panel.
[0029] Figure 4 It is a partial enlarged view showing a part of the sealing portion in an enlarged manner.
[0030] Figure 5 It is a cross-sectional view of the vehicle-mounted bracket mounted on the mounting panel.
[0031] Figure 6 It is a process diagram showing the demolding of the vehicle-mounted bracket.
[0032] Figure 7 It is a process diagram showing the demolding of the vehicle-mounted bracket.
[0033] Figure 8 It is a process drawing showing the demolding of the vehicle-mounted bracket.
[0034] Figure 9 It is a cross-sectional view of the vehicle-mounted bracket according to the second embodiment. Specific Embodiments
[0035] (First Embodiment)
[0036] Refer to Figures 1 to 8 The vehicle-mounted bracket according to the first embodiment will be described.
[0037] [Vehicle-mounted Bracket]
[0038] As Figure 1 shown, the vehicle-mounted bracket includes a bracket main body portion 11 made of a hard resin and a sealing portion 21 made of a soft material. The vehicle-mounted bracket integrally forms the bracket main body portion 11 and the sealing portion 21. The vehicle-mounted bracket can be a two-color molded product in which the bracket main body portion 11 and the sealing portion 21 are integrally formed, or an insert molded product in which the sealing portion 21 is molded in the bracket main body portion 11. The vehicle-mounted bracket can also be a press-fitted molded product in which the sealing portion 21 is heat-bonded to the bracket main body portion 11.
[0039] An example of the hard resin forming the bracket main body portion 11 is at least one selected from the group consisting of polybutylene terephthalate (PBT), polyamide (PA), and polyoxymethylene (POM). The hard resin can also be a glass fiber reinforced resin containing glass fiber.
[0040] The soft material forming the sealing portion 21 can be a thermoplastic elastomer that is softer than the material constituting the bracket main body portion 11, ethylene propylene rubber (EPDM), or silicone rubber. An example of the thermoplastic elastomer is at least one selected from the group consisting of ester-based elastomers, amide-based elastomers, olefin-based elastomers, styrene-based elastomers, and vinyl chloride-based elastomers.
[0041] [Bracket Main Body Portion 11]
[0042] The bracket main body portion 11 includes a flange portion 11A (refer to Figure 3 ) and legs 12. The bracket main body portion 11 has a fastening portion 13 and a stopper 18 at the legs 12 (refer to Figure 4 , Figure 5 ). The bracket main body portion 11 has a first mounting portion 14 and a second mounting portion 15 at the flange portion 11A.
[0043] The legs 12 have a square tubular shape. The legs 12 include a plurality of fastening portions 13, and each fastening portion 13 has two stoppers 18 (refer to Figure 4)。The fastening portion 13 has a claw shape protruding outward from the leg portion 12. The fastening portion 13 has a cantilever shape that can flex inwardly into the cylinder of the leg portion 12. The leg portion 12 inserted into the mounting panel 31 of the vehicle flexes the fastening portion 13 so that the leg portion 12 passes through the insertion hole of the mounting panel 31. The fastening portion 13 has a slope at the front end of the cantilever, and the portion closer to the front end of the leg portion 12 protrudes more outward from the leg portion 12 (see Figure 5 ).
[0044] The position-limiting members 18 are dispersed in the circumferential direction of the leg portion 12. The position-limiting members 18 are protrusions protruding outward on the outer peripheral surface of the leg portion 12. The position-limiting members 18 are arranged at a position closer to the flange portion 11A side than the fastening portion 13 in the extending direction of the leg portion 12. A gap equivalent to the plate thickness of the mounting panel 31 is formed between the position-limiting members 18 and the fastening portion 13 in the extending direction of the leg portion 12 between the slope of the position-limiting member 18 and the fastening portion 13. The mounting panel 31 into which the leg portion 12 is inserted causes the position-limiting members 18 to abut against the surface of the mounting panel 31. The slope of the fastening portion 13 passing through the insertion hole of the mounting panel 31 presses the back surface of the mounting panel 31 against the position-limiting members 18 while restoring the flexure of the fastening portion 13. Thus, the leg portion 12 is positioned on the mounting panel 31.
[0045] The flange portion 11A has a plate shape extending inwardly toward the leg portion 12. The surface of the flange portion 11A faces the camera cleaning nozzle 33 and the in-vehicle camera 34. The back surface of the flange portion 11A is the surface on the opposite side of the flange portion 11A from the surface, and faces the inside of the leg portion 12.
[0046] The first mounting portion 14 is arranged on the surface of the flange portion 11A. The first mounting portion 14 has a plate shape that frames the first insertion through-hole 14H. The first insertion through-hole 14H penetrates the flange portion 11A of the bracket main body portion 11. The first insertion through-hole 14H is for inserting the camera cleaning nozzle 33 (see Figure 2 ) as an example of an in-vehicle device. The first mounting portion 14 is exposed from the sealing portion 21 to the outside of the in-vehicle bracket. The camera cleaning nozzle 33 is mounted on the first mounting portion 14. The camera cleaning nozzle 33 is positioned on the first mounting portion 14 by the locking claws of the camera cleaning nozzle 33 and the like.
[0047] The second mounting portion 15 is arranged on the surface of the flange portion 11A. The second mounting portion 15 has a plate shape that frames the second insertion through-hole 15H. The second insertion through-hole 15H penetrates the flange portion 11A of the bracket main body portion 11. The second insertion through-hole 15H is for inserting the in-vehicle camera 34 (see Figure 2 ) as an example of an in-vehicle device. The second mounting portion 15 is exposed from the sealing portion 21 to the outside of the in-vehicle bracket. The in-vehicle camera 34 is mounted on the second mounting portion 15. The in-vehicle camera 34 is positioned on the second mounting portion 15 by the locking claws of the in-vehicle camera 34 and the like.
[0048] [Sealing portion 21]
[0049] As Figure 1 shown, the sealing portion 21 has a shape that covers the surface of the flange portion 11A and extends around the flange portion 11A. The sealing portion 21 includes a lip portion 22 and a main body sealing portion 23 as an example of a water stop portion.
[0050] The lip portion 22 is a tongue-like body having an undercut shape. The lip portion 22 surrounds the leg portion 12 in the entire circumferential direction of the leg portion 12. The lip portion 22 projects from the outer peripheral surface of the leg portion 12 toward the outside of the leg portion 12 and in a direction inclined with respect to the extending direction of the leg portion 12.
[0051] The main body sealing portion 23 covers the flange portion 11A in such a manner as to border the first mounting portion 14 throughout the entire circumference and border the second mounting portion 15 throughout the entire circumference. The main body sealing portion 23 includes a first crimping portion 234 and a second crimping portion 235.
[0052] The first crimping portion 234 projects outward in the main body sealing portion 23 along the thickness direction of the main body sealing portion 23. The first crimping portion 234 is a projecting shape for bordering the first mounting portion 14. The first crimping portion 234 is an opening edge that borders the entire periphery of the first mounting hole penetrating the main body sealing portion 23. The first mounting hole defined by the first crimping portion 234 exposes the first mounting portion 14 from the sealing portion 21.
[0053] As Figure 2 shown, the protruding amount of the first crimping portion 234 is set such that when the camera cleaning nozzle 33 is positioned at the first mounting portion 14, the first crimping portion 234 is flattened and crimped by the camera cleaning nozzle 33 in the direction in which the first crimping portion 234 projects. Thus, water is stopped between the camera cleaning nozzle 33 and the flange portion 11A of the bracket main body portion 11 by the first crimping portion 234.
[0054] Return Figure 1 , the second crimping portion 235 projects outward from the main body sealing portion 23 along the thickness direction of the main body sealing portion 23. The second crimping portion 235 is a projecting shape for bordering the second mounting portion 15. The second crimping portion 235 is an opening edge that borders the entire periphery of the second mounting hole penetrating the main body sealing portion 23. The second mounting hole defined by the second crimping portion 235 exposes the second mounting portion 15 from the sealing portion 21.
[0055] As Figure 2 shown, the protruding amount of the second crimping portion 235 is set such that when the in-vehicle camera 34 is positioned at the second mounting portion 15, the second crimping portion 235 is flattened and crimped by the in-vehicle camera 34 in the direction in which the second crimping portion 235 projects. Thus, water is stopped between the in-vehicle camera 34 and the flange portion 11A of the bracket main body portion 11 by the second crimping portion 235.
[0056] [Lip portion 22]
[0057] Figure 3 Shows the planar structure of the vehicle carrier as viewed from a viewpoint opposite to the back surface of the flange portion 11A. Figure 4 Shows a part 221 of the lip portion 22 as viewed from a viewpoint opposite to the back surface of the flange portion 11A. That is, Figure 4 Enlargedly shows the part of the lip portion 22 facing the mounting panel 31.
[0058] As Figure 3 shown, the lip portion 22 has a joint portion 25, a first parting line 26, and a second parting line 27.
[0059] The joint portion 25 is the part of the lip portion 22 that is joined to the leg portion 12. The joint portion 25 has a concavo-convex shape that repeats in the circumferential direction of the flange portion 11A. The outer peripheral surface of the leg portion 12 has a concave portion that repeats in the circumferential direction of the flange portion 11A. The joint portion 25 is the boundary between the lip portion 22 and the outer peripheral surface of the leg portion 12 including the concave portion. The joint portion 25 is the part of the soft material constituting the lip portion 22 that contacts the hard resin constituting the leg portion 12. When forming the lip portion 22, a part of the lip portion 22 is buried in the concave portion of the leg portion 12, thereby forming the concavo-convex shape of the joint portion 25. The concavo-convex shape of the joint portion 25 can be evenly arranged in the circumferential direction of the lip portion 22.
[0060] Thereby, the contact area between the joint portion 25 of the lip portion 22 and the carrier main body portion 11 increases the repetition amount of the concavo-convex shape. And, the joint portion 25 of the lip portion 22 suppresses the peeling of the lip portion 22 from the carrier main body portion 11 by increasing the strength of joining the lip portion 22 to the carrier main body portion 11.
[0061] The first parting line 26 has a closed loop shape extending throughout the entire circumference of the lip portion 22. The first parting line 26 is a step formed by the division of the mold for forming the lip portion 22. The second parting line 27 has a linear shape extending in the radial direction of the lip portion 22. The second parting line 27 is also a step formed by the division of the mold for forming the lip portion 22.
[0062] As Figure 4 shown, the lip portion 22 has a lip front end portion 22T and a lip base end portion 22B. The lip front end portion 22T is the part of the lip portion 22 on the front end side of the lip portion 22 with respect to the first parting line 26. The lip base end portion 22B is the part of the lip portion 22 on the base end side of the lip portion 22 with respect to the first parting line 26 and has the joint portion 25. The first parting line 26 is the boundary between the lip front end portion 22T and the lip base end portion 22B.
[0063] The front end portion 22T of the lip does not have a parting line on the surface in contact with the mounting panel 31. The front end portion 22T of the lip without a parting line has a smooth surface 22TS that is connected in the circumferential direction of the lip 22 as the surface in contact with the mounting panel 31. The portion of the smooth surface 22TS that is in contact with the base end portion 22B of the lip has a smooth protruding curved surface that gently protrudes toward the main body sealing portion 23 of the lip 22 (see Figure 5 ).
[0064] The second parting line 27 is only arranged at the base end portion 22B of the lip. The second parting line 27 is arranged in the convex portion that constitutes the concave-convex shape of the joint portion 25 and is adjacent to the fastening portion 13 in the circumferential direction of the leg portion 12. The second parting line 27 is arranged in such a way that it sandwiches the fastening portion 13 in the circumferential direction of the leg portion 12, and two are arranged for each fastening portion 13. There is no limiting member 18 between the fastening portion 13 and the second parting line 27 in the circumferential direction of the leg portion 12. The group of the second parting lines 27, each having two for each fastening portion 13, is clamped by the limiting member 18 in the circumferential direction of the leg portion 12 (see Figure 3 ).
[0065] The base end portion 22B with multiple second parting lines 27 can utilize the sliding of the split molds during the forming of the base end portion 22B of the lip. The split molds for forming the second parting line 27 are the molds for forming the fastening portion 13 in the leg portion 12. The protruding amount of the convex portion that constitutes the concave-convex shape of the joint portion 25 is approximately equal to the minimum width of the base end portion 22B of the lip. The width of the base end portion 22B is the length of the base end portion 22B in the direction orthogonal to the circumferential direction of the lip 22.
[0066] As Figure 5 shown, the mounting panel 31 into which the leg portion 12 is inserted makes the limiting member 18 abut against the surface of the mounting panel 31. The inclined surface of the fastening portion 13 passing through the insertion hole of the mounting panel 31 presses the back surface of the mounting panel 31 toward the limiting member 18 to position the leg portion 12 on the mounting panel 31. After the leg portion 12 is positioned, the vehicle-mounted bracket makes the front end portion 22T of the lip contact the surface of the mounting panel 31. The front end portion 22T of the lip in contact with the surface of the mounting panel 31 bends along the surface of the mounting panel 31 by the amount pushed up by the surface of the mounting panel 31.
[0067] At this time, the relative position of the leg portion 12 with respect to the surface of the mounting panel 31 is predetermined by the fastening portion 13 and the limiting member 18. In addition, the relative position of the front end portion 22T of the lip with respect to the surface of the mounting panel 31 is predetermined by the relative position of the limiting member 18 with respect to the front end portion 22T of the lip. And, the contact portion 22W of the front end portion 22T of the lip that contacts the surface of the mounting panel 31 is predetermined by the relative position of the limiting member 18 with respect to the front end portion 22T of the lip. Thus, water is blocked between the mounting panel 31 and the bracket main body portion 11 by the front end portion 22T of the lip. And, the contact portion 22W of the lip portion 22 is predetermined by the relative position of the limiting member 18 with respect to the front end portion 22T of the lip, and accordingly, the reproducibility of water blocking by the front end portion 22T of the lip is improved.
[0068] As Figure 5 shown, the leg portion 12 is provided with a receiving portion 19. The receiving portion 19 is provided in the entire circumference of the leg portion 12. The receiving portion 19 refers to the portion of the leg portion 12 that protrudes outward. The receiving portion 19 has an inclined surface that contacts the main body sealing portion 23. The inclined surface of the receiving portion 19 is inclined with respect to the extending direction of the leg portion 12. The receiving portion 19 extends to the base end portion 22B of the lip. In addition, in the first embodiment, the limiting member 18 also extends to the base end portion 22B of the lip.
[0069] [Formation of the lip portion 22]
[0070] As Figure 6 shown, the in-vehicle bracket is manufactured by two-color molding using a hard material and a soft material. The molding die of the in-vehicle bracket includes a main body die 51, a plurality of base end dies 52 of the lip, a main body sealing portion die 53, and a front end die 54 of the lip.
[0071] The main body die 51 forms the inner surface of the leg portion 12 and the inner surface of the flange portion 11A of the bracket main body portion 11. The base end die 52 of the lip forms a structure facing the mounting panel 31 on the outer surface of the leg portion 12 and the base end portion 22B of the lip of the bracket main body portion 11. The main body sealing portion die 53 forms the outer surface of the flange portion 11A of the bracket main body portion 11 and the outer surface of the main body sealing portion 23. The front end die 54 of the lip forms the entire front end portion 22T of the lip.
[0072] As Figure 7As shown, during the demolding of the in-vehicle bracket, the main body sealing portion mold 53 and the lip front end mold 54 are separated from the in-vehicle bracket along the extending direction of the leg portion 12. At this time, the lip front end portion 22T of the lip portion 22 is forcibly pulled out from the lip front end mold 54. Thus, a lip front end portion 22T without a parting line is formed on the surface in contact with the mounting panel 31. In addition, a first parting line 26 is formed as the boundary between the lip front end portion 22T and the lip base end portion 22B. In addition, the portion of the smooth surface 22TS that is in contact with the lip base end portion 22B is formed into a smooth protruding curved surface shape that gently protrudes toward the main body sealing portion 23 side of the lip portion 22. Furthermore, the lip front end mold 54 that forcibly pulls out the lip front end portion 22T flexes the lip front end portion 22T while lifting the lip front end portion 22T along the extending direction of the leg portion 12.
[0073] As Figure 8 shown, during the demolding of the in-vehicle bracket, the plurality of lip base end molds 52 are then separated from the in-vehicle bracket along the radial direction of the leg portion 12. Thus, the fastening portion 13 and the stopper 18 are formed together with the lip base end portion 22B having a second parting line 27 on the surface in contact with the mounting panel 31 by different lip base end molds 52. In addition, the lip base end portion 22B is joined to the bracket main body portion 11 via the engaging portion 25 having an uneven shape. And the lip portion 22 having the first parting line 26 and the second parting line 27 is formed together with the bracket main body portion 11.
[0074] [Effect]
[0075] As described above, according to the above first embodiment, the following effects can be obtained.
[0076] (1) The lip portion 22 of the sealing portion 21 seals the water between the flange portion 11A of the bracket main body portion 11 and the mounting panel 31. The first mounting hole formed in the main body sealing portion 23 is arranged in the sealing portion 21 in such a way that the sealing portion 21 seals the water between the flange portion 11A and the camera cleaning nozzle 33. The second mounting hole formed in the main body sealing portion 23 is arranged in the sealing portion 21 in such a way that the sealing portion 21 seals the water between the flange portion 11A and the in-vehicle camera 34.
[0077] In this way, the sealing portion 21 integrally formed with the bracket main body portion 11 seals the water between the flange portion 11A and the mounting panel 31, and between the flange portion 11A and the in-vehicle device. In particular, since the sealing portion 21 seals the water between the flange portion 11A and the in-vehicle device, the sealing performance of the in-vehicle bracket is improved. Since the water between the flange portion 11A and the mounting panel 31, and between the flange portion 11A and the in-vehicle device is sealed by one sealing portion 21, the number of components required for sealing can also be reduced.
[0078] (2) When the sealing portion 21 is integrally formed with the bracket main body portion 11, it is difficult to form a gap between the bracket main body portion 11 and the sealing portion 21. Therefore, the sealing performance between the bracket main body portion 11 and the sealing portion 21 is also improved. In addition, the operation of mounting the in-vehicle device on the mounting panel 31 via the in-vehicle bracket also serves as a water-stopping operation between the mounting panel 31 and the in-vehicle bracket, and between the in-vehicle bracket and the in-vehicle device. As a result, the handling of the in-vehicle bracket is also easier compared to the case where the bracket main body portion 11 is a component different from the sealing portion 21.
[0079] (3) When the sealing portion 21 has a first crimping portion 234 that protrudes so as to be crimped to the camera cleaning nozzle 33, the water-stopping between the camera cleaning nozzle 33 and the flange portion 11A is improved by the first crimping portion 234.
[0080] (4) When the sealing portion 21 has a second crimping portion 235 that protrudes so as to be crimped to the in-vehicle camera 34, the water-stopping between the in-vehicle camera 34 and the flange portion 11A is improved by the second crimping portion 235.
[0081] (5) When the lip portion 22 is disposed on the side of the flange portion 11A closer than the fastening portion 13, the lip portion 22 is easily pressed against the surface of the mounting panel 31 in a state where the leg portion 12 is mounted on the mounting panel 31. Therefore, the sealing performance of the lip portion 22 between the flange portion 11A and the mounting panel 31 is improved.
[0082] (6) When the surface of the lip front end portion 22T that contacts the mounting panel 31 does not have a parting line, the sealing performance of the lip portion 22 between the flange portion 11A and the mounting panel 31 is improved compared to the case where the lip front end portion 22T has a parting line.
[0083] (7) When the boundary between the lip base end portion 22B and the lip front end portion 22T is a closed-loop first parting line 26, in the demolding of the lip front end portion 22T, forced demolding such as pulling out the lip front end portion 22T from a mold that follows the outer shape of the lip front end portion 22T can be performed.
[0084] (8) When the lip base end portion 22B has a second parting line 27, in the demolding of the lip base end portion 22B, the sliding of a split mold that follows the outer shape of the lip base end portion 22B can be performed. Therefore, the design load of the lip front end portion 22T that requires forced demolding can be reduced.
[0085] (9) When the joint portion 25 has an uneven shape that repeats in the circumferential direction of the flange portion 11A, the contact area between the joint portion 25 and the bracket main body portion 11 increases. Therefore, the strength of joining the lip portion 22 to the bracket main body portion 11 is improved.
[0086] (Second Embodiment)
[0087] Reference Figure 9 The vehicle-mounted bracket according to the second embodiment will be described. The description of the same structure as that of the vehicle-mounted bracket according to the first embodiment and the vehicle-mounted bracket according to the second embodiment will be omitted.
[0088] The structures of the leg portion 12 and the lip portion 22 may also be changed so that the front end of the receiving portion 19 is disposed at a position outside the front end of the stopper 18, and a vertical step is provided between the lower surface of the receiving portion 19 and the lower surface of the stopper 18. That is, different from the first embodiment, the stopper 18 does not extend to the labial base end portion 22B. In other words, the receiving portion 19 extends to the labial base end portion 22B, while the stopper 18 does not extend to the labial base end portion 22B. Thus, the front end of the receiving portion 19 is disposed at a position outside the front end of the stopper 18.
[0089] According to the above second embodiment, the following-described effects can be obtained.
[0090] Since the labial base end portion 22B is separated from the stopper 18 outwardly, the boundary between the labial base end portion 22B and the leg portion 12 is determined by the receiving portion 19 in the entire circumference. As a result, the base end of the range where the lip portion 22 is deflected is determined by the receiving portion 19 in the entire circumference. In addition, when the mounting panel 31 abuts against the stopper 18, the vertical interval between the mounting panel 31 and the labial base end portion 22B also becomes constant in the entire circumference. Therefore, it is possible to suppress the non-uniformity in the circumferential direction of the stress acting on the labial base end portion 22B against bending, thereby enabling the surface pressure acting on the lip front end portion 22T to be uniform in the circumferential direction and suppressing the reduction of the local surface pressure in the circumferential direction.
[0091] [Modification Example]
[0092] The above first and second embodiments can also be implemented with the following modifications.
[0093] · Except for the circumferential direction of the flange portion 11A, the joint portion 25 may also repeat the concave and convex shapes in the extending direction of the leg portion 12 and the direction crossing these directions. The sizes of the convex portions constituting the concave and convex shapes of the joint portion 25 and the concave portions disposed on the outer peripheral surface of the leg portion 12 may be smaller or larger than the fastening portion 13.
[0094] · The concave portions for imparting the concave and convex shapes to the joint portion 25 may be omitted from the outer peripheral surface of the leg portion 12. In this case, the joint portion 25 may omit the concave and convex shapes and have a band extending in the circumferential direction of the leg portion 12. Even with this structure, the same effects as those in the above (1) to (8) can be obtained.
[0095] · The lip part 22 may also omit the first parting line 26. At this time, the front end part 22T of the lip may be the same as the base end part 22B of the lip, and have a plurality of parting lines arranged along the circumferential direction of the flange part 11A. Even if the front end part 22T of the lip has a structure with a parting line, the same effects as those in the above (1) to (6) and (9) can be obtained.
[0096] · The flange part 11A may also have a bowl shape covering a part of the outer peripheral surface of the leg part 12. At this time, the lip part 22 extending around the flange part 11A may be arranged on the side opposite to the flange part 11A side with respect to the fastening part 13 in the extending direction of the leg part 12. As described above, the part of the mounting panel 31 contacted by the lip part 22 and the part of the mounting panel 31 fastened by the fastening part 13 are different from each other. Therefore, the relative position of the lip part 22 with respect to the fastening part 13 in the extending direction of the leg part 12 can be appropriately changed according to the shape of the mounting panel 31. In addition, when the mounting panel 31 has a planar shape around the hole into which the leg part 12 is inserted, the lip part 22 may be arranged at a position closer to the flange part 11A than the fastening part 13. According to this structure, the same effect as that in the above (5) can be obtained.
[0097] · The first crimping part 234 may not protrude, and the second crimping part 235 may not protrude. At this time, the main body sealing part 23 may have a planar shape, may have a recess for crimping the camera cleaning nozzle 33 around the first mounting hole, and may also have a recess for crimping the in-vehicle camera 34 around the second mounting hole. The main body sealing part 23 only needs to have a structure that contacts the in-vehicle device in a way that stops water between the in-vehicle device mounted on the bracket main body part 11 and the flange part 11A.
[0098] · The water stop part is not limited to the lip part 22 having the base end part 22B and the front end part 22T, and may also be an annular body with a circular cross-section having water stop properties and elasticity arranged around the flange part 11A and stopping water between the flange part 11A and the mounting panel 31, or may be a strip-shaped body with a rectangular cross-section.
[0099] · The mounting hole may not expose the mounting part from the sealing part 21, but may expose the part of the flange part 11A other than the mounting part through the mounting hole, so as to assist in mounting the in-vehicle device on the mounting part. The part of the flange part 11A exposed through the mounting hole may function as a positioning for the in-vehicle device, or may function as a path for the wiring of the in-vehicle device to pass through.
[0100] Reference Signs
[0101] 11 - Bracket main body; 11A - Flange portion; 12 - Leg portion; 13 - Fastening portion; 14 - First mounting portion; 14H - First insertion through-hole; 15 - Second mounting portion; 15H - Second insertion through-hole; 19 - Receiving portion; 21 - Sealing portion; 22 - Lip portion; 23 - Main body sealing portion; 22B - Lip base end; 22T - Lip front end; 25 - Joint portion; 26 - First parting line; 27 - Second parting line; 31 - Mounting panel.
Claims
1. A vehicle-mounted bracket for mounting a vehicle-mounted device on a mounting panel of a vehicle, The vehicle-mounted bracket is characterized by comprising: A bracket main body; and A sealing part which is integrally formed with the bracket main body and made of a soft material, The bracket main body comprises: A flange part which has a mounting part configured to mount the vehicle-mounted device; and Legs which have fastening parts configured to be mounted on the mounting panel and extend from the flange part, The sealing part is configured to cover the flange part and expand around the flange part, and comprises: A water-stop part which is arranged around the flange part and stops water between the flange part and the mounting panel; and A crimping part which has a mounting hole for mounting the vehicle-mounted device on the mounting part and is configured to stop water between the flange part and the vehicle-mounted device around the mounting hole.
2. The vehicle-mounted bracket according to claim 1, characterized in that The crimping part of the sealing part is integrally formed with the water-stop part.
3. The vehicle-mounted bracket according to claim 1, characterized in that The crimping part is arranged around the entire circumference of the mounting hole and protrudes in a manner of crimping on the vehicle-mounted device.
4. The vehicle-mounted bracket according to claim 1, characterized in that The water-stop part is arranged on the side closer to the flange part than the fastening part in the extending direction of the legs.
5. The vehicle-mounted bracket according to claim 1, characterized in that The water-stop part is a lip which comprises: A lip base end part which is joined to the bracket main body; and A lip front end part which extends from the lip base end part toward the outside of the bracket main body, The lip front end part does not have a parting line on the surface in contact with the mounting panel, The boundary between the lip base end part and the lip front end part is a closed-loop parting line surrounding the flange part in the part facing the mounting panel.
6. The vehicle-mounted bracket according to claim 5, characterized in that The lip base end part has parting lines arranged along the circumferential direction of the flange part in the part facing the mounting panel.
7. The vehicle-mounted bracket according to claim 1, characterized in that The water-stop part is a lip which comprises: A lip base end part which is joined to the bracket main body; and A lip front end part which extends from the lip base end part toward the outside of the bracket main body, The joint part of the lip base end part and the bracket main body has an uneven shape repeating in the circumferential direction of the flange part.
8. The vehicle-mounted bracket according to claim 1, characterized in that The legs have a plurality of limit members arranged in the circumferential direction of the legs, the plurality of limit members protrude outward on the outer circumference of the legs, and the plurality of limit members are configured to determine the relative position of the legs with respect to the surface of the mounting panel, The water-stop part is a lip which comprises: A lip base end part which is joined to the bracket main body; and A lip front end part which extends from the lip base end part toward the outside of the bracket main body, The legs have a receiving part provided on the entire circumference of the legs, and the receiving part extends to the lip base end part. The above-mentioned receiving portion extends to the end portion of the clypeus. On the other hand, the above-mentioned plurality of limiting members do not extend to the end portion of the clypeus, so that the front end of the above-mentioned receiving portion is disposed outside the front ends of the above-mentioned plurality of limiting members.
Citation Information
Patent Citations
Onboard camera bracket
JP2012035693A