JP2009036333A - Sealing member attaching structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sealing member attaching structure which can sufficiently secure waterproof performance even if a string-shaped sealing member is used. <P>SOLUTION: A panel seal 39 is brought into a state that a compressed part 49 is formed in a panel seal connecting part 45, and also into a state that the panel seal is lifted by a rib 44 for preventing the formation of a clearance at the panel seal connecting part. When the panel seal 39 in a state that the panel seal connecting part 45 is lifted by the rib 44 for preventing the formation of the clearance at the panel seal connecting part is press-pushed against the other face 33 of a vehicle body panel 31, the panel seal connecting part 45 is tightly adhered likewise to the other face 33 of the vehicle body panel 31 by being crushed while maintaining the compressed part 49 even in the other portion of the panel seal 39. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a seal member affixing structure for affixing a string-like elastic seal member in an annular shape to a seal affixing surface formed on a seal attachment member.

  The following technology is disclosed in Patent Document 1 below. In FIG. 14, reference numeral 1 indicates an automobile panel (dash panel). The front side of the panel 1 in the figure is the inside of the engine room, and the back side in the figure is the inside of the instrument panel. A through hole 2 is formed in the panel 1, and an electrical connection between the engine room side connector and the instrument panel side connector is made through the through hole 2.

  The engine room-side connector includes an electrical connection box 3, and a case body 4 and a cover 5 that store the electrical connection box 3. The electrical junction box 3 has a plurality of connectors on the front and back surfaces. In the electrical junction box 3, reference numeral 6 indicates a waterproof seal member, reference numeral 7 indicates a bolt insertion hole, and reference numeral 8 indicates a bolt.

  The case body 4 has a bottom wall 9 and a side wall 10. A connector exposure hole 11 is formed in the bottom wall 9 so as to penetrate in accordance with the shape of the through hole 2 of the panel 1. The bottom wall 9 has a rectangular shape, and screw holes 12 are formed at the four corners. A waterproof seal member 13 is attached to the bottom wall 9. When the screw 14 is inserted into the screw hole 12 and the case main body 4 is fixed to the panel 1, the sealing member 13 is interposed between the bottom wall 9 and the panel 1 to ensure waterproof performance. Reference numeral 15 indicates a screw hole on the panel 1 side.

  The cover 5 has a plurality of cover-side connectors connected to the connectors of the electrical junction box 3 inside. A wire harness 17 on the engine room side is drawn into the cover 5 through a grommet 16.

  The connector on the instrument panel side has a female connector housing 19 provided at the end of the wire harness 18, and the female connector housing 19 is fixed to a panel 20 constituting the instrument panel. Reference numeral 21 denotes a screw hole. When the bolt 8 of the electrical connection box 3 is tightened, the electrical connection box 3 and the connector on the instrument panel side are connected by a connector.

In the above configuration, since the connector on the engine room side is fixed to the panel 1 in a watertight state by the sealing member 13, moisture such as water splashes generated in the engine room can enter the instrument panel side. There is no such thing.
JP 11-215645 A

  The seal member 13 is a sheet-like seal member cut in accordance with the outer shape of the bottom wall 9 of the case body 4 and formed into a frame shape by punching out the inner side. Since the punched portion becomes unnecessary every time one is manufactured, there is a problem that the yield is poor. Further, there is a problem that a die for punching is required.

  Therefore, if a string-like seal member is used to make it a closed ring-shaped member, it can be considered as an alternative to the seal member 13. Since it is necessary to bend some of the middle of the seal member while abutting the end surfaces of the seal member, the following problems arise.

  In other words, in the bent portion that occurs when the linear one is made into an annular one, there will be a difference between the inner length and the outer length, so in the finished annular seal member, the original state A restoring force is generated to return to the surface, and this restoring force acts as a pulling force at the seal joint portion where the end faces of the string-like seal members abut each other, resulting in a gap in the seal joint portion. When it becomes gradually larger, it has a problem that the waterproof performance is lowered (it also has a problem that the sound vibration performance is lowered).

  If the string-like seal member can be formed in an annular shape so that no gap is generated in the seal joint portion, the waterproof performance is sufficiently ensured.

  This invention is made | formed in view of the situation mentioned above, and makes it a subject to provide the sealing member affixing structure which can ensure waterproof performance enough, even if it uses a string-like sealing member.

  The seal member affixing structure of the present invention according to claim 1 made to solve the above-mentioned problems is a seal for affixing a string-like elastic seal member in an annular shape to a seal affixing surface formed on a seal attachment member. In the member affixing structure, at the position corresponding to the seal joint portion of the seal affixing surface, one rib extending in a direction crossing the seal affixing surface is projected and the elastic seal member is lifted by the rib In addition, the elastic seal member is affixed in a state where a compression portion is generated at the seal joint portion that is the both ends of the elastic seal member that is in contact with each other, or is extended to the position corresponding to the seal joint portion in the transverse direction. A pair of existing ribs are formed so as to protrude, and the elastic seal member is lifted by the pair of ribs while pushing the seal joint between the pair of ribs. State forme, is characterized in the paste the resilient sealing member and the state that caused the compressed portion to the seal connecting portion mutually contact.

  According to the present invention having such characteristics, the seal attachment surface has a rib or a pair of ribs. The string-like elastic seal member is affixed to the seal affixing surface in a state where it is compressed at the position of the seal joint and is entirely annular. The part lifted by the rib or the pair of ribs is pressed against the surface of the panel, for example, and is in close contact with the surface of the panel like the other parts. According to the present invention, even if the restoring force (tensile force) generated by making the string-like elastic seal member into an annular shape acts on the seal joint portion where the end surfaces of the elastic seal members are brought into contact with each other, this seal Since there is a compression portion at the joint, no gap is produced.

  The sealing member affixing structure of the present invention according to claim 2 is the sealing member affixing structure according to claim 1, wherein the projecting portion lifted by the rib or the pair of ribs is disassembled from the elastic seal member. It is characterized by the fact that it is a knob convex part at the time.

  According to the present invention having such a feature, for example, after removing from the surface of the panel, a portion lifted by the rib or the pair of ribs is picked and pulled, so that the elastic seal member can be easily removed from the seal application surface. It can be separated and dismantled.

  According to the first aspect of the present invention, there is an effect that the waterproof performance can be sufficiently ensured even if a string-like elastic seal member is used. By using a string-like elastic seal member, it is possible to eliminate the conventional yield problems and eliminate the need for a punching die.

  According to the second aspect of the present invention, in addition to the above effects, there is an effect that the elastic seal member can be easily disassembled.

  Hereinafter, description will be given with reference to the drawings. FIG. 1 is a perspective view of a vehicle body panel, a panel seal structure, and a male connector showing an embodiment of a seal member attaching structure of the present invention. 2 is an overall cross-sectional view before the female connector is fitted, and FIG. 3 is an overall cross-sectional view after the female connector is fitted. 4A is a perspective view of a panel seal mounting member, FIG. 4B is an enlarged view of a portion A of FIG. 4A, FIG. 5A is a perspective view of the panel seal, and FIG. FIG. 6A is an enlarged view of a portion B in FIG. 6A, FIG. 6A is a diagram showing a state before the vehicle body panel is attached to the panel seal joint portion, and FIG. 6B is a diagram showing a state after the vehicle body panel is attached.

  In FIG. 1, although it does not specifically limit, the reference number 31 has shown the vehicle body panel provided in moving bodies, such as a motor vehicle. One side 32 of the vehicle body panel 31 is an engine room. Further, the other surface 33 is a room including an instrument panel. The male connector 34 as a connector on the indoor side is fixed to the vehicle body panel 31 with the panel seal structure 35 attached in order to ensure waterproofness.

  1 to 3, a female connector 36 (see FIGS. 2 and 3) as a connector on the engine room side is electrically connected to the male connector 34. The female connector 36 passes through the through hole 37 of the vehicle body panel 31 and is connected to the male connector 34. The female connector 36 is connected to the male connector 34 so as to be inserted into the panel seal structure 35. In this embodiment, the male connector 34 is integrally attached to a module product 38 (see FIGS. 2 and 3) inside the instrument panel.

  In this embodiment, known body panel 31, male connector 34, and female connector 36 are used. The present invention is characterized by the structure of the panel seal structure 35, and the panel seal structure 35 will be described below.

  In FIG. 1, the panel seal structure 35 includes a panel seal 39 and a panel seal attachment member 40. The panel seal attachment member 40 has a structure in which the panel seal 39 is fixed to the vehicle body panel 31 side and the male connector 34 is fitted from the opposite side. The panel seal structure 35 is formed in a rectangular shape with a low height (or a frame shape). In such a state that the panel seal structure 35 is fixed to the vehicle body panel 31, the panel seal 39 is compressed in the fitting direction of the male connector 34 to ensure waterproof performance.

  In FIG. 4, the panel seal mounting member 40 is made of synthetic resin, and has a main body 41 having a substantially rectangular shape in plan view, and a connector fitting space 42 formed by penetrating the main body 41. Yes. The main body 41 is formed with a panel seal attaching surface 43 that makes a round with a predetermined width. The panel seal pasting surface 43 is formed on a flat surface except for one place. One panel seal joint gap prevention rib 44 is formed at the one place on the panel seal attaching surface 43. In addition, the said one location shall point out the location corresponding to the position of the panel seal joint part 45 mentioned later.

  The panel seal joint gap prevention rib 44 is formed so as to cross the panel seal attachment surface 43, in other words, to extend in the width direction of the panel seal attachment surface 43 (one of the panel seal attachment surfaces 43). From one side to the other side). The panel seal joint gap prevention ribs 44 are formed at positions other than the four corners of the main body 41 (the panel seal attachment surface 43 is formed at a straight position). The panel seal joint gap prevention rib 44 is formed in a shape that is substantially trapezoidal in cross section (the cross section is an example. Other shapes will be described later with reference to FIGS. 7 and 8). . The panel seal joint gap prevention rib 44 of this embodiment is formed in a trapezoidal shape with a small upper base and a large lower bottom.

  The panel seal joint part gap prevention rib 44 is formed as a part for improving waterproof performance. The panel seal joint gap prevention rib 44 is formed in a shape that slightly lifts a part of the panel seal 39 (see FIG. 1) with respect to the panel seal attachment surface 43 in order to improve waterproof performance. The panel seal joint gap prevention rib 44 has a height dimension in consideration of the elasticity of the panel seal 39 (see FIG. 1) and the compressed state with the vehicle body panel 31 (see FIG. 1).

  In FIG. 5, the panel seal 39 is a sealing member having elasticity, and is formed in a string shape having a predetermined length or by cutting a string-like object with a predetermined length. In this embodiment, the panel seal 39 has a sponge portion 46 and an adhesive 47 provided on the sponge portion 46. The sponge portion 46 is formed such that a rectangular end surface 48 having one side matching the width dimension of the panel seal attachment surface 43 (see FIG. 4) continues uniformly from one end surface 48 to the other end surface 48. Yes. The adhesive 47 is provided to attach the panel seal 39 to the panel seal application surface 43 (see FIG. 4). In this embodiment, the string-like panel seal 39 is formed so that one end face 48 and the other end face 48 are abutted with each other, and the middle is bent at four places to form a closed annular shape shown in FIG. . And it is affixed in this closed annular state.

  The panel seal 39 is formed to have a length slightly longer than the length of one round of the panel seal attachment surface 43 (see FIG. 4) (the length is set in consideration of compression described below). And). When such a panel seal 39 is attached so as to form a closed ring as shown in FIG. 1, the panel seal 39 is brought into contact with one end face 48 and the other end face 48 as shown in FIG. 6 (a). The compressed portion 49 is generated at both ends (panel seal joint portion 45) of the panel seal 39, and the panel seal joint portion clearance prevention rib 44 lifts the panel seal 39.

  The panel seal joint portion 45 is lifted by the panel seal joint portion gap prevention rib 44 so that the lower portion of one end surface 48 and the other end surface 48 is compressed, and the upper side opens in a substantially V-shape. It is in a state. Since the upper portion is a convex portion, when the panel seal 39 is disassembled, if the portion is picked and pulled, the panel seal 39 is easily separated from the panel seal attachment surface 43 and disassembled. It has come to be. The upper part of the end surface 48 has a function as a knob convex part 50 used at the time of dismantling.

  As shown in FIG. 6A, the panel seal 39 in a state where the panel seal joint portion 45 is lifted by the panel seal joint portion gap prevention rib 44 is replaced with the other surface 33 of the vehicle body panel 31 as shown in FIG. When pressed, the panel seal joint portion 45 is crushed while maintaining the compression portion 49 and is in close contact with the other surface 33 of the vehicle body panel 31 in the same manner as the other portions of the panel seal 39.

  Since the panel seal 39 is crushed while maintaining the compression portion 49, even if the restoring force (pulling force) generated by making the string-like panel seal 39 annular acts on the panel seal joint portion 45, There is no gap in the panel seal connecting portion 45. Therefore, the waterproof performance is sufficiently ensured.

  The panel seal joint gap prevention rib 44 described above has a shape that is substantially trapezoidal in cross-section, but has a shape that is substantially triangular in cross-section as shown in FIG. (Refer to reference numerals 44 ′ and 44 ″). The panel seal 39 is crushed while maintaining the compression portion 49 in the same manner as described above, and the other side of the vehicle body panel 31 is formed. It closely adheres to the surface 33. There is no gap in the panel seal joint 45, and the waterproof performance is sufficiently secured.

  Next, another embodiment of the sealing member attaching structure of the present invention will be described with reference to FIGS. FIG. 9 is a perspective view of a vehicle body panel, a panel seal structure, and a male connector showing another embodiment. FIG. 10A is a perspective view of the panel seal mounting member of FIG. 9, and FIG. 10B is an enlarged view of a portion C of FIG. Further, FIG. 11 (a) is a diagram showing a state before the vehicle body panel is attached to the panel seal joint portion, and FIG. 11 (b) is a diagram showing a state after the vehicle body panel is attached. In addition, the same code | symbol is attached | subjected to the fundamentally same part as the above-mentioned form, and description is abbreviate | omitted.

  In FIG. 9, a male connector 34 as a connector on the indoor side is fixed to the vehicle body panel 31 with a panel seal structure 51 attached in order to ensure waterproofness. The panel seal structure 51 includes a panel seal 39 and a panel seal attachment member 52. The panel seal attachment member 52 has a structure in which the panel seal 39 is fixed to the vehicle body panel 31 side and the male connector 34 is fitted from the opposite side. The panel seal structure 51 is formed in a rectangular shape with a low height (or a frame shape). In such a state that the panel seal structure 51 is fixed to the vehicle body panel 31, the panel seal 39 is compressed in the fitting direction of the male connector 34 to ensure waterproof performance.

  In FIG. 10, the panel seal mounting member 52 is made of synthetic resin, and has a main body 53 having a substantially rectangular shape in plan view and a connector fitting space 42 formed by penetrating the main body 53. Yes. The main body 53 is formed with a panel seal attaching surface 43 that makes a round with a predetermined width. The panel seal pasting surface 43 is formed on a flat surface except for one place. A pair of panel seal connecting portion gap prevention ribs 54 is formed at the one place on the panel seal attaching surface 43. In addition, the said one location shall point out the location corresponding to the position of the panel seal joint part 45 (refer FIG. 11).

  The pair of panel seal joint portion gap prevention ribs 54 are formed so as to cross the panel seal attachment surface 43, in other words, to extend in the width direction of the panel seal attachment surface 43 (panel seal attachment surface 43). From one side to the other, and is formed in parallel at a predetermined interval). The pair of panel seal joint portion gap prevention ribs 54 are formed at positions other than the four corners of the main body 53 (the panel seal attachment surface 43 is formed at a straight position). Each of the pair of panel seal joint part gap prevention ribs 54 is formed in a shape that is substantially trapezoidal in cross-sectional view (the cross-sectional shape is an example. For other shapes, refer to FIGS. 12 and 13). Will be described later). The pair of panel seal joint gap prevention ribs 54 of this embodiment are formed in a trapezoidal shape with a small upper base and a large lower bottom.

  The pair of panel seal joint gap prevention ribs 54 are formed as portions for improving waterproof performance. The pair of panel seal joint gap preventing ribs 54 can slightly lift a part of the panel seal 39 (see FIGS. 9 and 11) with respect to the panel seal attachment surface 43 in order to improve waterproof performance. It is formed in a simple shape. Moreover, in order to improve waterproof performance, it forms in the shape which can push in the panel seal joint part 45 between a pair of panel seal joint part gap prevention ribs 54. The height of the pair of panel seal joint gap prevention ribs 54 and the distance between the ribs are set in consideration of the elasticity of the panel seal 39 and the compressed state with the vehicle body panel 31 (see FIG. 9).

  When the panel seal 39 is pasted so as to have a closed ring shape as shown in FIG. 9, the panel seal 39 is attached to the panel seal joint portion 45 by a pair of panel seal joint portion gap prevention ribs 54 as shown in FIG. The panel seal joint portion 45 is pushed between the pair of panel seal joint portion gap prevention ribs 54 and the compressed portion 49 is generated in the panel seal joint portion 45.

  The panel seal joint portion 45 is pushed between the pair of panel seal joint portion gap prevention ribs 54 while being lifted by the pair of panel seal joint portion gap prevention ribs 54, so that the entire surface of the one end surface 48 and the other end surface 48. In this state, the upper side near the end face 48 is opened in a substantially V shape. Since the upper part in the vicinity of the end face 48 is a convex part, when disassembling the panel seal 39, if this part is picked and pulled, the panel seal 39 can be easily removed from the panel seal attaching surface 43. Separated and dismantled. The upper part in the vicinity of the end surface 48 has a function as a knob convex part 50 used at the time of dismantling.

  As shown in FIG. 11A, the panel seal 39 in a state where the panel seal joint 45 is pushed up between the pair of panel seal joint gap prevention ribs 54 while being lifted by the pair of panel seal joint gap prevention ribs 54. Is pressed against the other surface 33 of the vehicle body panel 31 as shown in FIG. 11 (b), the panel seal joint portion 45 is crushed while maintaining the compression portion 49, and is the same as the other portions of the panel seal 39. The body panel 31 is in close contact with the other surface 33.

  Since the panel seal 39 is crushed while maintaining the compression portion 49, even if the restoring force (pulling force) generated by making the string-like panel seal 39 annular acts on the panel seal joint portion 45, There is no gap in the panel seal connecting portion 45. Therefore, the waterproof performance is sufficiently ensured.

  The pair of panel seal joint gap preventing ribs 54 described above have a shape that is substantially trapezoidal in sectional view, but a shape that is substantially triangular in sectional view as shown in FIG. 12 or a sectional view as shown in FIG. (Refer to reference numerals 54 ′ and 54 ″) The panel seal 39 is crushed while maintaining the compression portion 49 in the same manner as described above, and the vehicle body panel 31. It adheres closely to the other surface 33. There is no gap in the panel seal connecting portion 45, and the waterproof performance is sufficiently secured.

  In addition, it goes without saying that the present invention can be variously modified without departing from the spirit of the present invention.

  In the above description, the close contact point of the panel seal 39 is the vehicle body panel 31, but is not limited thereto. It is not particularly limited as long as waterproofing is necessary and there is a surface for adhesion.

  The seal member attaching structure of the present invention is characterized by a viewpoint different from that of claim 1 of the scope of claims, and “a string-like elastic seal member and a seal attaching surface for attaching the elastic seal member in an annular shape are provided. It is a structure with a seal mounting member, and the elastic seal member is formed with a length that is longer than the length of one circumference of the seal attachment surface, and at a position corresponding to the seal joint portion of the seal attachment surface, One rib that extends in a direction crossing the seal attachment surface is projected or formed, or a pair of ribs extending in the transverse direction is projected and formed at a position corresponding to the seal joint portion ''. Can do.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a vehicle body panel, a panel seal structure, and a male connector showing an embodiment of a seal member attaching structure of the present invention. It is a whole sectional view before female connector fitting. It is a whole sectional view after a female connector fitting. (A) is a perspective view of a panel seal attachment member, (b) is an enlarged view of A part of (a). (A) is a perspective view of a panel seal | sticker, (b) is an enlarged view of B part of (a). (A) is a figure which shows the state before the vehicle body panel attachment of a panel seal joint part, (b) is a figure which shows the state after vehicle body panel attachment. It is a figure used as another example of a panel seal joint part gap prevention rib, (a) is a figure which shows the state before vehicle body panel attachment of the part of a panel seal joint part, (b) shows the state after vehicle body panel attachment. FIG. It is a figure used as the further another example of a panel seal joint part gap prevention rib, (a) is a figure which shows the state before vehicle body panel attachment of a panel seal joint part, (b) is a figure which shows the state after vehicle body panel attachment. It is. It is a perspective view of a vehicle body panel, a panel seal structure, and a male connector showing another embodiment of a seal member attaching structure of the present invention. (A) is a perspective view of the panel seal attachment member of FIG. 9, (b) is an enlarged view of C part of (a). (A) is a figure which shows the state before the vehicle body panel attachment of a panel seal joint part, (b) is a figure which shows the state after vehicle body panel attachment. It is a figure which becomes another example of a pair of panel seal joint part gap prevention rib, (a) is a figure which shows the state before vehicle body panel attachment of a panel seal joint part, (b) shows the state after vehicle body panel attachment. FIG. It is a figure which becomes further another example of a pair of panel seal joint part gap prevention rib, (a) is a figure which shows the state before vehicle body panel attachment of a panel seal joint part, (b) is the state after vehicle body panel attachment. FIG. It is a disassembled perspective view regarding the panel attachment of a prior art example.

Explanation of symbols

31 Body panel 32 One side 33 Other side 34 Male connector 35 Panel seal structure 36 Female connector 37 Through-hole 38 Module product 39 Panel seal (elastic seal member)
40 Panel seal mounting member (seal mounting member)
41 Main body 42 Connector fitting space 43 Panel sticker attachment surface (sticker attachment surface)
44 Panel seal joint gap prevention rib (rib)
45 Panel seal joint (seal joint)
46 Sponge part 47 Adhesive 48 End face 49 Compressed part 50 Knob convex part 51 Panel seal structure 52 Panel seal attachment member (seal attachment member)
53 Body 54 A pair of panel seal joint gap prevention ribs (a pair of ribs)

Claims (2)

In the seal member affixing structure for affixing the string-like elastic seal member annularly to the seal affixing surface formed on the seal attachment member,
One rib extending in a direction crossing the seal attachment surface is formed at a position corresponding to the seal joint portion of the seal attachment surface, and the elastic seal member is lifted and contacted by the rib. Affixing the elastic seal member to a state where a compression portion is generated in a seal joint portion which is both ends of the elastic seal member;
Or
A state in which a pair of ribs extending in the transverse direction is formed to protrude at the position corresponding to the seal joint, and the elastic joint is lifted by the pair of ribs and the seal joint is pushed between the pair of ribs. And the said elastic seal member is affixed in the state which produced the compression part in the said seal joint part which contacts, The seal member affixing structure characterized by the above-mentioned. In the sealing member affixing structure according to claim 1,
The seal member affixing structure characterized in that a convex portion lifted by the rib or the pair of ribs is a knob convex portion when the elastic seal member is disassembled.

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