Sealing Device
The sealing device with a divided cover member for R-curved joints addresses the issues of lifting, twisting, and wrinkling, providing effective sealing and easy maintenance for curved gaps.
Patent Information
- Application Number
- JP2025002206
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2026-02-19
- Estimated Expiration
- 2045-01-07
AI Technical Summary
Existing sealing methods for curved gaps, such as those between a camper's body and panel, result in lifting, twisting, or wrinkling of sealing materials, leading to water leakage and difficulty in cleaning and reapplication.
A sealing device comprising an R-curved concave joint with connectors and a cover member divided into multiple units, which are connected by grooves and hooks, to prevent lifting, twisting, or wrinkling, and allow easy removal and replacement of cover units.
The device effectively seals R-curved gaps without lifting, twisting, or wrinkling, is resistant to dirt, and facilitates easy cleaning and reapplication of sealing materials.
Smart Images

Figure 0007817715000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a sealing device, and more particularly to a sealing device for sealing between the body and a panel of a camper, for example. [Background technology]
[0002] In the past, when sealing curved gaps, such as the gap between the body and panel of a camper van, a caulking agent was typically filled into the gap to seal. This was because, when an attempt was made to seal a curved gap with a strip-shaped sealing member made of resin, the sealing member would lift up, twist, or wrinkle at the curved part, especially on the inner periphery, causing water leakage from the lifted, twisted, or wrinkled areas.
[0003] However, when the caulking agent is used for sealing, the sealing surface is constantly exposed to the outside, which means that the surface filled with the caulking agent is easily soiled and difficult to remove the dirt. Furthermore, there are problems in that the peeling, cleaning, and reapplication of the caulking agent when it is reapplied are difficult and troublesome. [Prior art documents] [Patent documents]
[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-228972 Summary of the Invention [Problem to be solved by the invention]
[0005] The present invention was invented to solve the above-mentioned conventional problems, and aims to provide a sealing device that can seal gaps that are curved in an R-shape, such as between the body and panel of a camper van, without the sealing material lifting up, twisting, or wrinkling, and that is resistant to dirt even if the sealing surface is constantly exposed to the outside after sealing, and even if dirt does occur, it can be easily removed, and furthermore, the sealing material can be easily re-applied, cleaned, and re-installed. [Means for solving the problem]
[0006] The present invention is a sealing device that can seal an R-curve joint formed by overlapping end faces of members, The device comprises: an R-curved concave joint having an R-curved joint at its bottom formed by overlapping the bent end face of the second member onto the bent end face of the first member; a connector that is driven into the bottom of the R-curved concave joint to connect the first member and the second member; and a cover member that can be fitted into the opening of the R-curved concave joint; The cover member is divided into at least two cover units in the width direction, R curve concave joint The cover unit attached to the inner circumferential side in the bending direction can eliminate installation problems of the cover member due to bending installation. It is characterized by the fact that or This is a sealing device that can seal R-curve joints formed by overlapping the end faces of components, The device comprises: an R-curved concave joint having an R-curved joint at its bottom, formed by overlapping the bent end face of a first member with the bent end face of a second member; a connector that connects the first member and the second member within the R-curved concave joint; a closing member that is attached within the R-curved concave joint and has a substantially U-shaped cross section, with both upper ends abutting with a pressing force against the side faces of the R-curved concave joint; and a cover member that can be fitted into the opening of the R-curved concave joint. The cover member is divided into at least two cover units in the width direction, R curve concave joint The cover unit attached to the inner periphery in the bending direction can eliminate installation problems of the cover member due to bending installation. It is characterized by the fact that or This is a sealing device that can seal R-curve joints formed by overlapping the end faces of components, an R-curved concave joint having an R-curved seam at its bottom formed by overlapping the bent end face of a second member onto the bent end face of a first member; a connector that connects the first member and the second member within the R-curved concave joint; a closing member that is attached within the R-curved concave joint and has a generally U-shaped cross section, with both upper ends abutting with a pressing force against the side faces of the R-curved concave joint; and a sealing member that is attached between the closing member and the R-curved concave joint and closing the R-curved connection seam. a cover member that can be fitted into the opening of the R-curved concave joint, The cover member is divided into at least two cover units in the width direction, R curve concave joint The cover unit attached to the inner periphery in the bending direction can eliminate installation problems of the cover member due to bending installation. It is characterized by the fact that or The two or more cover units are connected to each other by a groove extending in the longitudinal direction at the connection end of one cover unit, and a hook strip fitted into the groove and slidable in the longitudinal direction within the groove at the connection end of the other cover unit, thereby forming a cover member. It is characterized by the fact that or The two or more cover units each have a groove extending in the longitudinal direction at the connection end on both sides in the width direction of the cover unit, and a connecting unit is provided between each of the opposing cover units, and the connection end of the connecting unit is provided with a hook strip that fits into each of the grooves and is slidable in the longitudinal direction within each of the grooves, and the cover units and the connecting unit are connected to form a cover member. It is characterized by the following. [Effects of the Invention]
[0007] According to the present invention, it is possible to provide a sealing device that can seal an R-curved gap between a body and a panel in a camper or the like without lifting, twisting, or wrinkling, and that is resistant to dirt even if the sealing surface is constantly exposed to the outside after sealing, and even if dirt does occur, it can be easily removed, and furthermore, it has the excellent effect of providing a sealing device that can easily re-apply, clean, and re-apply the sealing material. [Brief explanation of the drawings]
[0008] [Figure 1] FIG. 1 is an explanatory diagram (1) illustrating the configuration of a first embodiment. [Figure 2] FIG. 2 is an explanatory diagram (2) for explaining the configuration of the first embodiment. [Figure 3] FIG. 3 is an explanatory diagram (3) for explaining the configuration of the first embodiment. [Figure 4] FIG. 10 is an explanatory diagram (1) illustrating the configuration of a cover member according to a second embodiment. [Figure 5] FIG. 10 is an explanatory diagram (2) illustrating the configuration of the cover member according to the second embodiment. [Figure 6] FIG. 10 is an explanatory diagram illustrating the configuration of a second embodiment. [Figure 7] FIG. 2 is an explanatory diagram illustrating a state in which the present invention is used. DETAILED DESCRIPTION OF THE INVENTION
[0009] Hereinafter, an embodiment of the present invention will be described based on the embodiment shown in the drawings. (First Example) 1 to 3, reference numeral 1 denotes a first member.
[0010] The connection end 2 of this first member is bent into a substantially L-shape. Reference numeral 3 denotes a second member, and the connection end 2 of this second member is also bent into a substantially L-shape. As shown in Figures 1 to 3, the connection end 2 of the first member 1 and the connection end 2 of the second member 3, which are bent into a substantially L-shape, are placed opposite each other and the end faces of each member are slightly overlapped to form an R-curved concave joint 4 that extends in an R-curve shape.
[0011] Furthermore, at the bottom of this R-curved concave joint 4, a joint 5 between the first member and the second member 3 is formed, which has an R-curved shape.
[0012] In recent years, there has been a demand for a sealing device that can strongly seal the R-curved joint 5, as shown in the present invention. Conventionally, in order to seal the R-curved joint 5 in the longitudinal direction, the R-curved joint 5 has often been sealed by filling the R-curved joint 5 with a caulking agent.
[0013] First, in the present invention, a plurality of connectors 6, for example in the form of screws, are driven into the bottom surface of the R-curved concave joint 4 to connect the first member 1 and the second member 3. At this time, as shown in Figure 1, a closing member 8 made of a flexible material is attached to the R-curved concave joint 4, and the two protruding pieces 13 extending from both sides of a U-shaped body 14 having a substantially U-shaped cross section contact the side surfaces 7 of the R-curved concave joint 4 with a pressing force. A sealing member 9 made of, for example, a flexible resin material is also attached integrally. The closing member 8 is housed between the closing member 8 and the R-curved concave joint 4, and tightly closes and seals the R-curved joint 5.
[0014] Then, as shown in Figures 2 and 3, after the first member 1, the second member 3, the sealing member 9, and the blocking member 8 are attached within the R-curved concave joint 4 using the connecting device 6, a cover member 10 is fitted into the opening of the R-curved concave joint 4 to close the opening.
[0015] Here, as shown in the drawing, the cover member 10 is made up of two or more pieces, and in the first embodiment shown in the drawing, it is made up of a cover unit 17 for two articles.
[0016] That is, as can be seen from Figure 3, the cover unit 17 has a protruding piece 12 that protrudes to be attached to the surface 11 near the opening of the R-curved concave joint 4, and a locking protrusion 16 that locks into a locking portion 15 provided in the inward direction of the upper end of the U-shaped main body 14 of the blocking member 8, and further, in order to connect the two cover units, one cover unit 17 is provided with an insertion recess 18, and the other cover unit 17 is provided with an insertion protrusion 19 that fits into the insertion recess 18.
[0017] It is not limited to which of the pair of cover units 17 the fitting recess 18 and the fitting protrusion 19 are provided in. It is sufficient that the fitting recess 18 and the fitting protrusion 19 are provided in opposing cover units 17 of the pair of opposing cover units 17 so as to face each other.
[0018] The fitting projections 19 are fitted into the fitting recesses 18, whereby the pair of cover units 17 are joined together to form a so-called band-shaped cover member 10.
[0019] 3, the cover member 10 made up of a pair of cover units 17 is often cut to a predetermined length in the longitudinal direction, and is ultimately configured to be fitted as a single long, strip-shaped cover member 10 into the opening of the R-curved concave joint 7 extending in the longitudinal direction. There are no restrictions on the interval of the predetermined length, and the cutting length can be determined taking into account the curved condition of the R-curved concave joint 7 into which the cover member 10 will be fitted.
[0020] With a cover member 10 configured in this manner, even if the cover member 10 consisting of two cover units 17 is fitted into the opening of the R-curved concave joint 7, which bends in an R-curve shape as shown in Figure 3, the cover unit 17 arranged on the inner curved side of the R-curved concave fitting portion 4 will be able to absorb the curved inner diameter.
[0021] That is, the cover unit 17 arranged on the inner periphery of the curved R-shape can be prevented from lifting, twisting, or wrinkling by cutting the longitudinal length of the cover unit 17 shorter in advance.
[0022] Generally, when a joint between two components, such as a body and a panel, transitions from a straight line to a corner, such as an R-shaped curve, if a cover member for the straight line is used at the corner, the difference between the outer and inner circumferences of the R-shaped curved joint will be too large for the stretchability of the material of the cover member 10 alone to fill the gap. This results in the cover member 10 lifting, twisting, and wrinkling. In other words, because the inner circumference is closer to the inner circumference than the outer circumference, the inner circumference is compressed excessively, resulting in lifting, twisting, and wrinkling on the inner circumference.
[0023] Therefore, in the present invention, the cover member 10 is configured as separate parts, such as an outer cover unit 17 and an inner cover unit 17, facing in the width direction. As a result, even at corners that bend in an R-shape, the lengths of the outer cover unit 17 and the inner cover unit 17 are made different, with the inner cover unit 17 being shorter, thereby reducing the difference between the outer and inner circumferences and allowing the cover member 10 to fulfill its role without lifting, kinking, or wrinkles.
[0024] Next, a second embodiment is shown in Figures 4 to 6. In the second embodiment, a cover member 10 is fitted to a portion of the R-curved concave joint 7 that meanders in a so-called wave-like pattern. In this case, the cover member 10 must be composed of at least three members. That is, a pair of cover units 17 and a band-shaped connecting strip 20 that connects the pair of cover units 17 are required. This is because the cover member 10 that is fitted to the opening of the R-curved concave joint 7, which meanders in a so-called wave-like pattern, must be made to meander in a wave-like pattern.
[0025] Therefore, the cover member 10 of the second embodiment is composed of three components: a pair of cover units 17 and a connecting bar 20 that connects the pair of cover units 17 together.
[0026] In the second embodiment, as can be seen from Fig. 5, a pair of cover units 17 are each provided with an insertion recess 18 on the end face on the joining side, and the connecting strip 20 is provided with an insertion protrusion 19 that fits into each of the insertion recesses 18. With a cover member 10 configured in this way, even if the cover member 10 of the second embodiment is fitted into the opening of the R-curved concave joint 7 that meanders in a wavy pattern as shown in Fig. 6, the cover units 17 arranged on the inner curved side of the R-curved concave fitting portion 4, i.e., the cover units 17 arranged on both sides in the width direction, can each absorb the curved inner diameter.
[0027] That is, the length of each of the cover units 17 in the longitudinal direction can be shortened and adjusted in advance so that the cover units 17 on both sides arranged on the inner periphery, which meander in a wavy and curved R-shape, do not lift up, twist, or wrinkle.
[0028] Next, the application of the present invention to a body 22 and a back panel 23 of a camper van 21 or the like, for example, and the attachment of the cover member 10 to a specific R-curve concave joint 4 will be described.
[0029] Regarding the installation of the back panel 23 installed at the rear of the body 22 of the camper van 21, the joint 5 where the connecting ends of the body 22 and the back panel 23 overlap during installation is in the shape of an R curve as described above, and as already mentioned, it has been common practice to perform caulking treatment using caulking agent.
[0030] However, in the present invention, when sealing the opening at the joint 5, a special structure is used in which sealing members 8, sealing members 9 and cover members 10 are stacked, and the surface of the opening is sealed using a so-called split cover member, thereby preventing water from seeping in through the joint 5, and making the opening surface with the cover member 10 attached resistant to external dirt, and further having the advantage that even if the cover member 10 deteriorates, the repair work can be carried out by simply replacing the cover member 10.
[0031] That is, even if the two cover units 17 deteriorate, the appearance can be maintained as good as new simply by replacing the covers 17, and the technical hurdle is not high at all, and repair work is easy, so no engineer is required.
[0032] In this way, the back panel 23 installed at the rear of the body of the camper van 21 is attached not by the conventional caulking process using caulking agents, but by using a special structure that overlaps moldings and covers, it is possible to prevent water from entering, is resistant to dirt from the outside, and even if deterioration occurs, installation can be done by simply replacing parts.
[0033] As described above, the fact that the cover member 10 is made up of a plurality of cover units, for example, two cover units 17, is an extremely important feature of the present invention.
[0034] Generally, when the seam 5 between two components, for example, the body 22 and the back panel 23, changes from a straight line to a corner, such as an R-shaped curve, the straight cover member 10 cannot be used at the corner. This is because the difference between the outer and inner circumferences of the opening width at the R-shaped curved seam 5 is such that the stretchability of the material of the cover member 10 alone cannot fill the gap. This causes the cover member 10 to lift, twist, or wrinkle. In other words, because the inner circumference is closer to the inner circumference than the outer circumference, the inner circumference lifts, twists, or wrinkles.
[0035] Therefore, in the present invention, the cover member 10 is configured as separate parts, such as an outer cover unit 17 and an inner cover unit 17, facing in the width direction. As a result, even at corners that bend in an R-shape, the outer cover unit 17 and the inner cover unit 17 are made different in length, and the inner cover unit 17 is made shorter in length, reducing the difference between the outer and inner circumferences and preventing the inner cover unit 17 from lifting, twisting, or wrinkling, allowing it to maintain its role as the cover member 10.
[0036] For example, if a cover member 10 with a width of 21.8 mm is used in a corner portion having an R-curve shape without being divided, the minimum bending value of the cover member 10 that can still function as the cover member 10 without causing wrinkles or kinks is considered to be R = 100 mm.
[0037] However, it has been demonstrated that when the cover member 10 having a width of 21.8 mm is divided into two cover units 17, the R can be reduced to about half of the R=100 mm, that is, to R=50 mm.
[0038] Furthermore, it is believed that corners with an R of 50 mm or less can be accommodated by using two or more cover units 17. As described above, by using multiple or two cover units 17, construction becomes possible without the need for special corner parts.
[0039] Next, in the present invention, a sealing member 9 made of, for example, a silicone molding that fits between the base and the installation part is stored in a compressed state in the gap (opening) that is created when, for example, FRP panels are joined together, and pressure is applied to the sealing member 9 made of, for example, a silicone molding that is sandwiched between the base and the body by the screw-like connector 6 and the blocking member 8, thereby filling the gap at the joint 5.
[0040] In the present invention, a triple structure is used to prevent the intrusion of water, dust, etc. That is, the gap between the joints 5 is filled with a sealing member 9 made of a silicone molding compressed with screw-like connectors 6, both protruding pieces 13 protruding from both sides of a U-shaped body 14 having a roughly U-shaped cross section each abut with a pressing force against the side surfaces 7 of the R-curved concave joint 4, and closing members 8 made of a flexible material fill the gap between both side surfaces 7 of the R-curved concave joint 4 and the closing member 8, and the protruding pieces 12 of the cover member 4 cover the opening of the R-curved concave joint 4, thereby filling the opening.
[0041] Furthermore, in the past, it was difficult to remove stains from caulking, and the removal, cleaning, and reapplication of the caulking required high technical hurdles, and the installer's technical ability was essential to carry out the work without damaging the appearance.However, in the present invention, only the cover unit 17 directly faces the outside, and even if these two cover units 17 deteriorate, the appearance can be maintained as good as new by replacing the cover unit 17.
[0042] In other words, the present invention combines multiple parts to form a multi-layered sealing device, which, like caulking with caulking agents, prevents the intrusion of water and dust while maximizing the maintenance of appearance and ease of cleaning and maintenance. Therefore, it has the effect of providing an extremely innovative and effective sealing device for the FRP panel structure of camper vans, where caulking with caulking agents is the norm. [Explanation of symbols]
[0043] 1 First member 2 Connection end face 3 Second member 4 R curved concave joint 5. Seams 6 Connectors 7 Side of R curved concave joint 8 Closing member 9 Sealing member 10 Cover member 11 Surface near the opening 12 Projection piece 13 Protruding piece 14 U-shaped body 15 Locking part 16 Locking protrusion 17 Cover unit 18 Inset groove 19 Inset protrusion 20 Connecting Article 21 Camper 22 Body 23 Back Panel
Claims
1. A sealing device that can seal an R-curve joint formed by overlapping end faces of members, The device comprises: an R-curved concave joint having an R-curved joint at its bottom formed by overlapping the bent end face of a first member with the bent end face of a second member; a connector that is driven into the bottom of the R-curved concave joint to connect the first member and the second member; and a cover member that can be fitted into the opening of the R-curved concave joint; The cover member is composed of at least two or more cover units divided in the width direction, and the cover unit attached to the inner peripheral side of the curved R-curve concave joint in the curved direction can eliminate installation problems of the cover member due to curved installation. A sealing device characterized by:
2. A sealing device that can seal an R-curve joint formed by overlapping end faces of members, The device comprises: an R-curved concave joint having an R-curved joint at the bottom formed by overlapping the bent end face of a first member with the bent end face of a second member; a connector that connects the first member and the second member within the R-curved concave joint; a closing member that is attached within the R-curved concave joint and has a generally U-shaped cross section, with both upper ends abutting with a pressing force against the side faces of the R-curved concave joint; and a cover member that can be fitted into the opening of the R-curved concave joint. The cover member is composed of at least two or more cover units divided in the width direction, and the cover unit attached to the inner peripheral side of the curved R-curve concave joint can eliminate installation problems of the cover member due to curved installation. A sealing device characterized by:
3. A sealing device that can seal an R-curve joint formed by overlapping end faces of members, an R-curved concave joint having an R-curved seam at its bottom formed by overlapping the bent end face of a second member onto the bent end face of a first member; a connector that connects the first member and the second member within the R-curved concave joint; a closing member that is attached within the R-curved concave joint and has a generally U-shaped cross section, with both upper ends abutting with a pressing force against the side faces of the R-curved concave joint; and a sealing member that is attached between the closing member and the R-curved concave joint and closing the R-curved connection seam. a cover member that can be fitted into the opening of the R-curved concave joint, The cover member is composed of at least two or more cover units divided in the width direction, and the cover unit attached to the inner peripheral side of the curved R-curve concave joint can eliminate installation problems of the cover member due to curved installation. A sealing device characterized by:
4. The two or more cover units are connected to each other by a groove extending in the longitudinal direction at the connection end of one cover unit, and a hook strip fitted into the groove and slidable in the longitudinal direction within the groove at the connection end of the other cover unit, thereby forming a cover member.
4. The sealing device according to claim 1, claim 2 or claim 3.
5. The two or more cover units each have a groove extending in the longitudinal direction at the connection end on both sides in the width direction of the cover unit, and a connecting unit is provided between each of the opposing cover units, and the connection end of the connecting unit is provided with a hook strip that fits into each of the grooves and is slidable in the longitudinal direction within each of the grooves, and the cover units and the connecting unit are connected to form a cover member.
4. The sealing device according to claim 1, claim 2 or claim 3.
Citation Information
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