Lid device
The lid device addresses unstable sealing by using a recessed housing and elastic sealing members that maintain consistent deformation, ensuring stable sealing performance and easy replacement, while reducing exposure to sunlight and facilitating efficient opening.
Patent Information
- Application Number
- JP2024115099
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-07-18
- Publication Date
- 2026-01-29
AI Technical Summary
Existing lid devices face issues with unstable sealing performance due to positional variations in the lid's closed position, caused by component tolerances or assembly errors, leading to inconsistent elastic deformation of the sealing material.
A lid device design featuring a housing with a recess and a lid that moves between open and closed positions, utilizing an elastic sealing member that deforms in a direction intersecting the opening and closing direction, maintaining a constant elastic state despite positional variations, and an inner seal member to assist in opening and sealing.
Ensures stable sealing performance by maintaining consistent elastic deformation of the sealing member, reducing exposure to sunlight, and facilitating easy replacement of the sealing component, while also providing efficient opening assistance.
Smart Images

Figure 2026014143000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a lid device. [Background technology]
[0002] The lid device of Patent Document 1 below is configured to include a housing provided with a power supply port and a lid that opens and closes the housing. An annular sealant is provided on the periphery of the housing, and the sealant seals the gap between the periphery of the housing and the outer periphery of the lid. This ensures that the lid device is waterproof. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Patent Publication No. 2021-054186 Summary of the Invention [Problem to be solved by the invention]
[0004] However, the above-described lid device has room for improvement in the following respects. Specifically, in the above-described lid device, the sealing material is formed in a plate shape that protrudes from the outer periphery of the housing toward the lid when viewed in the circumferential direction of the sealing material. Furthermore, the rear surface of the lid presses the leading end of the sealing material, causing the sealing material to elastically deform in the thickness direction of the lid (opening / closing direction). Here, if positional variation in the opening / closing direction occurs in the closed position of the lid due to, for example, component tolerances or assembly errors, the distance between the lid and the housing changes. In other words, the amount of elastic deformation of the sealing material changes. Therefore, the above-described lid device may not be able to ensure stable sealing performance.
[0005] In consideration of the above, the present invention provides a lid device that can ensure stable sealing performance. [Means for solving the problem]
[0006] One or more embodiments of the present invention are a lid device comprising: a housing provided inside an opening in a vehicle panel and having a recess open toward the opening; a lid that is arranged in a closed position to close the opening and that is arranged in an open position to open the opening by moving from the closed position toward the opening side of the recess; and a lid base that is arranged inside the recess and surrounded by a side wall of the recess with a predetermined gap; and a sealing member that is elastic and provided on one of the lid base and the side wall of the recess, is arranged in the gap to surround the lid base, and abuts against the other of the lid base and the side wall of the recess, elastically deforming toward the one side. [Effects of the Invention]
[0007] According to one or more embodiments of the present invention, stable sealing performance can be ensured. [Brief explanation of the drawings]
[0008] [Figure 1] 1 is a front view schematically showing a lid device according to an embodiment of the present invention, as viewed from the outside in the vehicle width direction. [Figure 2] 2 is a front view showing a state in which the lid of the lid device shown in FIG. 1 has moved to an open position. FIG. [Figure 3] 3 is a cross-sectional view (cross-sectional view taken along line 3-3 in FIG. 1) seen from the rear side, showing the state in which the link mechanism and the lid shown in FIG. 1 are connected to each other. [Figure 4] 4 is a cross-sectional view (cross-sectional view taken along line 4-4 in FIG. 1) showing the inside of the lid device shown in FIG. 1 as seen from above. [Figure 5] 5 is a cross-sectional view (cross-sectional view taken along line 5-5 in FIG. 2) seen from the rear side, showing a connected state between the link mechanism and the lid in the lid device shown in FIG. 2. FIG. [Figure 6] 2 is a rear view of the lid device shown in FIG. 1 as seen from the inside in the vehicle width direction. [Figure 7] 7 is a cross-sectional view (cross-sectional view taken along line 7-7 in FIG. 1) showing the inside of the upper end portion of the lid device shown in FIG. 1 as seen from the rear side. [Figure 8] FIG. 8 is a cross-sectional view corresponding to FIG. 7, showing a modified example of the outer seal member. [Figure 9] FIG. 8 is a cross-sectional view corresponding to FIG. 7, showing another modified example of the outer seal member. DETAILED DESCRIPTION OF THE INVENTION
[0009] The lid device 10 according to this embodiment will be described below with reference to the drawings. Note that the arrow UP shown as appropriate in the drawings indicates the upper side of the vehicle (automobile) to which the lid device 10 is applied, the arrow FR indicates the front side of the vehicle, and the arrow OUT indicates the outer side in the vehicle width direction. In the following description, when the up / down and front / rear directions are used, they refer to the up / down and front / rear directions of the vehicle unless otherwise specified.
[0010] 1 to 5, the lid device 10 is provided on the side of the rear of the vehicle (on the right side of the vehicle in this embodiment). The lid device 10 includes a housing 20, a lid 30, a link mechanism 40, an outer seal member 60 as a seal member, and an inner seal member 70 as a biasing member. Each component of the lid device 10 will be described below.
[0011] (About Housing 20) The housing 20 is provided on the vehicle widthwise inner side of an opening 80A provided in an outer panel 80 serving as a panel of the vehicle. The housing 20 has a recess 22 that opens outward in the vehicle width direction (toward the opening 80A). Specifically, the recess 22 includes a bottom wall 22A whose thickness direction is the vehicle width direction, and cylindrical side walls 22B that extend outward in the vehicle width direction from the outer periphery of the bottom wall 22A. When viewed from the front-rear direction, the upper and lower side walls 22B are inclined outward in the vertical direction as they extend outward in the vehicle width direction.
[0012] An exposure hole 22C serving as a hole is formed through the bottom wall 22A of the recess 22, and the exposure hole 22C is formed in a substantially elongated hole shape with the longitudinal direction being the front-to-rear direction. A part of the energy receiving portion 82 (see FIG. 2) is disposed inside the exposure hole 22C, and the energy receiving portion 82 is exposed to the outside in the vehicle width direction through the exposure hole 22C.
[0013] A pair of front and rear link accommodating portions 22DF, 22DR for accommodating a link mechanism 40 (described later) are formed in the bottom wall 22A of the recess 22, on the front-rear outer sides of the exposure hole 22C. The link accommodating portions 22DF, 22DR are formed in a recessed shape that opens outward in the vehicle width direction and extend in the vertical direction. The vertical length of the rear link accommodating portion 22DR is set to be longer than the vertical length of the front link accommodating portion 22DF.
[0014] (About Lid 30) As shown in FIG. 6 , the lid 30 is formed as a generally rectangular plate with its thickness aligned with the vehicle width direction. The lid 30 includes a lid base 32 that forms the inner portion of the lid 30 in the vehicle width direction, and a lid panel 34 that forms the outer end of the lid 30 in the vehicle width direction. The lid base 32 is made of resin and is formed in the shape of a generally rectangular box with a relatively shallow bottom that opens outward in the vehicle width direction. The lid panel 34 is formed in the shape of a generally rectangular plate with its thickness aligned with the vehicle width direction. The lid panel 34 is disposed on the outer side of the lid base 32 in the vehicle width direction so as to close the opening of the lid base 32, and is fixed to the lid base 32 at a position not shown. When the lid panel 34 is fixed to the lid base 32, the outer periphery of the lid panel 34 is disposed outside the lid base 32. That is, both vertical ends of the lid panel 34 protrude outward in the vertical direction relative to the lid base 32 , and both front-rear end portions of the lid panel 34 protrude outward in the front-rear direction relative to the lid base 32 .
[0015] The lid 30 is configured to be movable between a closed position (position shown in Figures 1, 3, and 4) in which it closes the opening 80A and an open position (position shown in Figures 2 and 5) in which it opens the opening 80A, by means of a link mechanism 40 described below.
[0016] When the lid 30 is in the closed position, the inner portion of the lid base 32 in the vehicle width direction is disposed within the recess 22. That is, the outer peripheral portion 32A of the lid base 32 is surrounded by the side wall 22B of the recess 22, and the inner end of the lid base 32 in the vehicle width direction overlaps with the side wall 22B when viewed from a direction perpendicular to the circumferential direction of the recess 22. Specifically, a predetermined gap G is formed between the outer peripheral portion 32A of the lid base 32 and the side wall 22B of the recess 22, and the outer peripheral surface of the lid base 32 is formed so as to be parallel to the inner peripheral surface of the side wall 22B when viewed from the circumferential direction of the recess 22.
[0017] On the other hand, when the lid 30 is in the open position, the lid 30 is disposed on the outer side and below the housing 20 in the vehicle width direction, and is also disposed on the outer side of the outer panel 80 in the vehicle width direction. When the lid 30 is in the open position, the lid 30 extends in a direction that slopes inward in the vehicle width direction as it extends downward when viewed from the front-rear direction. The following description will be given with the lid 30 in the closed position.
[0018] An escape recess 32B for locating a part of a driven link 44 (described later) is formed at the upper end of the bottom wall of the lid base 32. The escape recess 32B is formed in a concave shape that opens toward the inside in the vehicle width direction and extends in the front-rear direction.
[0019] (Regarding the link mechanism 40) The link mechanism 40 is a mechanism that connects the housing 20 and the lid 30 and moves the lid 30 between an open position and a closed position by actuation. The link mechanism 40 includes a drive link 42 and a pair of front and rear driven links 44. The drive link 42 is formed in a generally elongated shape extending in the vertical direction and is bent in a generally U-shape that opens outward in the vehicle width direction when viewed from the front-to-rear direction. The drive link 42 is accommodated in a rear link accommodating portion 22DR of the housing 20. A lower end (base end) of the drive link 42 is rotatably coupled to the housing 20 within the link accommodating portion 22DR, with the front-to-rear direction being the axial direction. An upper end (tip end) of the drive link 42 protrudes outward in the vehicle width direction from the link accommodating portion 22DR, is positioned above the relief recess 32B and inward in the vehicle width direction of the upper end of the lid base 32, and is rotatably coupled to the lid base 32 with the front-to-rear direction being the axial direction.
[0020] The pair of driven links 44 are formed in a generally elongated shape extending in the up-down direction, and are bent in a generally crank shape when viewed from the front-rear direction. Specifically, the longitudinal middle portions of the driven links 44 are bent, and the upper end portions (tip ends) of the driven links 44 are positioned outward in the vehicle width direction than the lower end portions (base ends) of the driven links 44. The driven links 44 are respectively housed in the link housing portions 22DF, 22DR of the housing 20. The rear driven link 44 is positioned outward in the vehicle width direction from the drive link 42.
[0021] The lower end of the driven link 44 is connected to the housing 20 within the link accommodating portions 22DF, 22DR so as to be rotatable with the front-rear direction as the axial direction. The upper end of the driven link 44 protrudes outward in the vehicle width direction from the link accommodating portions 22DF, 22DR, is disposed within the relief recess 32B of the lid base 32, and is connected to the lid base 32 so as to be rotatable with the front-rear direction as the axial direction. The rotation axis at the lower end of the front driven link 44 and the rotation axis at the lower end of the rear driven link 44 are arranged coaxially. The rotation axis at the upper end of the front driven link 44 and the rotation axis at the upper end of the rear driven link 44 are also arranged coaxially.
[0022] Furthermore, a link connecting portion 46 (see FIGS. 1 and 7) is provided between the upper ends of the pair of front and rear driven links 44. The link connecting portion 46 connects the upper ends of the driven links 44 together and is disposed within the relief recess 32B. This allows the pair of driven links 44 to rotate integrally. The link mechanism 40 is configured as a so-called four-bar link, and operation of the link mechanism 40 moves the lid 30 between the open position and the closed position.
[0023] An actuator 50 (see FIG. 4) serving as a drive unit is connected to the base end of the drive link 42. The actuator 50 is electrically connected to a control unit (not shown). When the control unit drives the actuator 50, the drive link 42 rotates about the base end, and the link mechanism 40 is activated. Specifically, when the drive link 42 rotates to one side in the rotation direction (the direction of arrow A in FIG. 3), the lid 30 is displaced downward and outward in the vehicle width direction from the closed position to the open position. Furthermore, when the opening operation of the lid 30 begins, the lid 30 moves from the closed position substantially outward in the vehicle width direction. In other words, when the closing operation of the lid 30 is completed, the lid 30 moves substantially inward in the vehicle width direction from just before the closed position to be disposed at the closed position.
[0024] (Regarding the outer seal member 60) 7, the outer seal member 60 is made of an elastic material such as rubber or elastomer. The outer seal member 60 is formed in a substantially rectangular ring shape (frame shape) when viewed in the vehicle width direction, and is provided integrally with the outer peripheral portion 32A of the lid base 32 of the lid 30. Specifically, the outer seal member 60 protrudes from the inner end of the outer peripheral portion 32A of the lid base 32 in the vehicle width direction toward the side wall 22B of the recess 22 in the housing 20, is disposed in the gap G, and surrounds the lid base 32 (the outer peripheral portion 32A thereof). As a result, the outer seal member 60 overlaps the side wall 22B of the recess 22 when viewed in a direction perpendicular to the circumferential direction of the recess 22.
[0025] The outer seal member 60 is formed in a plate shape with its thickness direction generally parallel to the vehicle width direction when viewed from the circumferential direction of the lid base 32, and is curved in a curved manner outward in the vehicle width direction toward the side wall 22B of the recess 22. Specifically, when viewed from the circumferential direction of the lid base 32, the outer seal member 60 is curved in a generally arc shape that convexly extends toward the side wall 22B and inward in the vehicle width direction. The tip of the outer seal member 60 abuts against the side wall 22B of the recess 22, and is pressed by the side wall 22B toward the outer peripheral portion 32A of the lid base 32, elastically deforming the outer seal member 60 toward the outer peripheral portion 32A of the lid base 32 (in FIG. 7 , the outer seal member 60 before elastic deformation is shown by a two-dot chain line). That is, the outer seal member 60 is elastically deformed in a direction intersecting the opening and closing direction of the lid 30 in the closed position. As a result, the tip of the outer seal member 60 is pressed against the side wall 22B, and the outer seal member 60 seals the gap between the lid 30 and the recess 22 of the housing 20. Furthermore, the position of the outer seal member 60 in the vehicle width direction is set so that the elastic deformation state of the outer seal member 60 is approximately constant even if the position of the lid 30 varies in the vehicle width direction due to component tolerances, assembly errors, etc. Furthermore, since the outer seal member 60 is disposed within the gap G of the recess 22, the outer periphery of the lid panel 34 makes the outer seal member 60 invisible.
[0026] (Regarding the inner seal member 70) 6 and 7, the inner seal member 70, like the outer seal member 60, is made of an elastic material such as rubber or elastomer. The inner seal member 70 is provided integrally with the upper end of the rear surface of the lid base 32. Specifically, the inner seal member 70 is located above the relief recess 32B of the lid base 32. The inner seal member 70 is formed in a generally elongated plate shape with its thickness direction in the up-down direction and its longitudinal direction in the front-to-rear direction, and protrudes inward in the vehicle width direction from the lid base 32. When viewed from the rear, the inner seal member 70 is curved upward in a curved manner as it extends inward in the vehicle width direction. The tip of the inner seal member 70 abuts against the bottom wall 22A of the housing 20 above the exposure hole 22C of the housing 20 and is pressed outward in the vehicle width direction (toward the opening direction of the lid 30 in the closed position) by the bottom wall 22A, causing the inner seal member 70 to elastically deform outward in the vehicle width direction (in FIG. 7, the inner seal member 70 before elastic deformation is shown by a two-dot chain line). As a result, the inner seal member 70 biases the lid 30 in the closed position outward in the vehicle width direction. Also, when viewed from the front-rear direction, the tip of the inner seal member 70 overlaps the tip of the drive link 42 (see FIG. 3).
[0027] (Action and effect) Next, the effects of this embodiment will be described.
[0028] In the lid device 10 configured as described above, the lid 30 is disposed on the outer side of the outer panel 80 of the vehicle in the vehicle width direction when in the open position, and the opening 80A and the recess 22 of the housing 20 are open to the outer side in the vehicle width direction (see FIG. 5). Specifically, the lid 30 is located below the opening 80A when viewed from the vehicle width direction.
[0029] To move the lid 30 to the closed position, the actuator 50 rotates the drive link 42 toward the other side in the rotation direction, thereby operating the link mechanism 40. Specifically, the drive link 42 rotates about its lower end toward the other side in the rotation direction, and the driven link 44 rotates about its lower end toward the other side in the rotation direction, causing the lid 30 to be displaced from the open position toward the outside and upward in the vehicle width direction.
[0030] When the lid 30 moves from the near side of the closed position to the closed position, the lid 30 moves substantially inward in the vehicle width direction. At this time, the lid base 32 of the lid 30 is inserted into the recess 22 of the housing 20. At this time, the tip of the outer seal member 60 abuts against the side wall 22B of the recess 22, and the outer seal member 60 elastically deforms toward the outer peripheral portion 32A of the lid base 32. That is, the lid base 32 is inserted into the recess 22 of the housing 20 while the tip of the outer seal member 60 slides on the side wall 22B of the recess 22. As a result, the lid 30 is disposed in the closed position with the outer seal member 60 sealing the recess 22 and the lid 30.
[0031] As described above, in the lid device 10, when the lid 30 is in the closed position, the lid base 32 is disposed in the recess 22 of the housing 20, and the outer peripheral portion 32A of the lid base 32 is surrounded by the side wall 22B of the recess 22 with a predetermined gap G therebetween. Here, the outer seal member 60 is provided on the lid base 32, disposed in the gap G, surrounds the outer peripheral portion 32A of the lid base 32, and abuts against the side wall 22B of the recess 22, elastically deforming toward the lid base 32. In other words, the outer seal member 60 elastically deforms within the gap G in a direction intersecting the vehicle width direction (the opening and closing direction of the lid 30 in the closed position). Even if the position of the lid 30 varies in the vehicle width direction due to component dimensional tolerances, assembly errors, etc., the distance between the side wall 22B and the outer peripheral portion 32A in the direction intersecting the vehicle width direction remains substantially constant. That is, even if the position of the lid 30 varies in the vehicle width direction, the amount of pressure applied by the side wall 22B to the outer seal member 60 does not change substantially. This makes it possible to keep the elastic deformation state of the outer seal member 60 substantially constant, thereby ensuring stable sealing performance.
[0032] The lid 30 also has a lid panel 34 fixed to the lid base 32. When the lid 30 is in the closed position, the lid panel 34 closes the opening 80A, making the outer seal member 60 invisible. As described above, the outer seal member 60 is provided in the gap G within the recess 22. Therefore, compared to a configuration in which the outer seal member 60 is provided in the opening 80A and seals between the opening 80A and the lid panel 34, for example, direct exposure of the outer seal member 60 to sunlight can be reduced when the lid 30 is in the closed position. As a result, deterioration of the outer seal member 60 due to ultraviolet rays can be reduced.
[0033] Furthermore, an inner seal member 70 is provided between the bottom wall 22A of the recess 22 in the housing 20 and the rear surface of the lid base 32, and the inner seal member 70 biases the lid base 32 outward in the vehicle width direction (toward the opening of the recess 22). That is, when the lid 30 is in the closed position, the inner seal member 70 biases the lid 30 in the opening direction. Therefore, the inner seal member 70 functions as an assist member when opening the lid 30. As a result, when the lid 30 is opened from the closed position, the inner seal member 70 can prevent the lid 30 from being held in place by friction between the outer seal member 60 and the side wall 22B.
[0034] Furthermore, when viewed from the front-rear direction, the tip of the inner seal member 70 overlaps the tip of the drive link 42. In other words, the inner seal member 70 is provided near the tip of the drive link 42, which inputs the driving force of the actuator 50 to the lid 30. This allows the biasing force of the inner seal member 70 to be efficiently applied to the lid 30, and the lid 30 in the closed position can be moved from the closed position to the open position.
[0035] The inner seal member 70 is made of an elastic material such as rubber or elastomer, and elastically deforms between the bottom wall 22A of the recess 22 and the rear surface of the lid base 32, biasing the lid 30 outward in the vehicle width direction. Therefore, the inner seal member 70, which functions as an assist member when opening the lid 30, can be used to seal the gap between the housing 20 and the lid 30. More specifically, the inner seal member 70 can seal the gap between the housing 20 and the lid 30 inside the outer seal member 60.
[0036] Furthermore, the outer seal member 60 is provided on the outer peripheral portion 32A of the lid base 32. Therefore, the outer seal member 60 can be provided integrally with the lid base 32 by a method such as two-color molding. This contributes to reducing the cost of the lid base 32 (lid 30). Furthermore, if the outer seal member 60 is damaged, it can be resolved by simply replacing the lid 30. This makes it easier to replace the outer seal member 60 compared to a configuration in which the outer seal member 60 is provided on the housing 20.
[0037] In this embodiment, the outer seal member 60 is provided on the lid 30, but as shown in Fig. 8, the outer seal member 60 may be provided on the side wall 22B of the recess 22 in the housing 20. In this case, when viewed from the circumferential direction of the recess 22, the outer seal member 60 is formed so as to curve inward in the vehicle width direction as it extends toward the lid base 32.
[0038] 9, the outer seal member 60 may be provided on the side wall 22B of the recess 22 in the housing 20, and may be formed so that, when viewed in the circumferential direction of the recess 22, the outer seal member 60 curves outward in the vehicle width direction as it approaches the lid base 32. With this configuration, even if the outer seal member 60 is subjected to the pressure of water that has entered between the lid 30 and the housing 20, it is less likely to deform toward the side where the seal is released (the side wall 22B side), and a stable sealing effect can be obtained.
[0039] Furthermore, the present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the spirit of the present invention. [Explanation of symbols]
[0040] 10 Lid device 20. Housing 22 recess 22B side wall 22C Exposure hole (hole) 30 Lid 32 Lid base 34 Lid Panel 42 Drive link 50 Actuator (drive unit) 60 outer seal member (seal member) 70 Inner seal member (biasing member) 80 Outer panel (panel) 80A opening 82 Energy receiving unit G Gap
Claims
1. a housing provided inside an opening in a panel of a vehicle and having a recessed portion that opens toward the opening; a lid that is disposed at a closed position to close the opening, and that is disposed at an open position to open the opening by moving from the closed position toward the opening side of the recess, and that has a lid base that is disposed inside the recess and is surrounded by a side wall of the recess with a predetermined gap therebetween; a sealing member having elasticity, provided on one of the lid base and the side wall of the recess, disposed in the gap to surround the lid base, and abutting against the other of the lid base and the side wall of the recess to elastically deform toward the one side; A lid device comprising:
2. the lid has a lid panel that covers the lid base from an opening side of the recess, 2. The lid device according to claim 1, wherein the lid panel makes the seal member invisible.
3. 2. The lid device according to claim 1, further comprising a biasing member provided between the housing and the lid base, the biasing member biasing the lid base toward the opening of the recess.
4. The biasing member is made of an elastic material, a hole for arranging an energy receiving part in the bottom wall of the recess; 4. The lid device according to claim 3, wherein the biasing member elastically deforms at a radially outer side of the hole to seal the gap between the bottom wall of the recess and the lid base.
5. a drive link is provided between the lid and the housing, a base end of the drive link is rotatably connected to the housing with a predetermined direction as an axial direction, and a tip end of the drive link is rotatably connected to the housing with the predetermined direction as an axial direction, A driving unit is connected to a base end of the driving link, and the driving unit drives the driving link to rotate around the base end, thereby opening and closing the lid.
4. The lid device according to claim 3, wherein the tip of the drive link and the biasing member overlap when viewed from the predetermined direction.
6. A lid device described in any one of claims 1 to 5, wherein the sealing member is provided on the lid base and curves toward the opening side of the recess as it approaches the side wall of the recess when viewed circumferentially of the sealing member.
7. A lid device described in any one of claims 1 to 4, wherein the sealing member is provided on the side wall of the recess and curves toward the opposite side of the opening side of the recess as it approaches the lid base when viewed circumferentially of the sealing member.
Citation Information
Patent Citations
Lid seal structure for motor vehicle
JP2021054186A