Insert grommet

Abstract

The present invention relates to an insert grommet that facilitates coupling and separation while maintaining airtightness by forming a compression space through slimming in an assembly part of a grommet corresponding to a mounting hole of a dust cover.

Description

Insert Grommet

[0001] The present invention relates to an insert grommet that facilitates easy joining and separating while maintaining airtightness by forming a compression space through weight reduction in the assembly portion of the grommet, which is formed to correspond to the mounting hole of a dust cover.

[0002] Generally, automobiles are equipped with many electrical components, including headlights, brake lights, and interior lights, and such components are powered by a battery.

[0003] In addition, electricity supplied from the battery is distributed to electrical components installed inside the dust cover, and multiple connectors corresponding to each electrical component are provided inside the dust cover, and wiring is connected to the connectors of the dust cover, and waterproof grommets are used to prevent moisture, such as rainwater, from penetrating from the outside and causing a short circuit when the wiring is mounted on the dust cover.

[0004] In relation to such technology, the technology of a grommet is disclosed in Public Patent No. 2008-35749, and its configuration is as shown in FIG. 1, which includes a connector box (41) to prevent the ingress of foreign substances from the outside, and the connector box (41) is provided with a plurality of connectors (42) corresponding to each electrical component, and wiring (43) wired from a battery (not shown) is connected to these connectors (42).

[0005] In addition, when connecting the above-mentioned wiring (43) to the connector box (41), to prevent moisture such as rainwater from penetrating from the outside and causing an electrical short circuit, the wiring (43) connection part (45) is inserted into the mounting groove (47) of the grommet (44) for waterproofing and airtightness, and the wiring (43) must be passed through the insertion hole (46) of the grommet (44).

[0006] However, the above-mentioned grommet has the disadvantage that, as the mounting groove (47) is simply recessed inward to correspond to the connection part (45), there is no space for compression during assembly, making mounting and detachment difficult, and pressure control difficult, which makes it difficult to control the adhesion force when elasticity decreases.

[0007] The objective of the present invention, which aims to improve upon the aforementioned conventional problems, is to provide an insert grommet that facilitates easy mounting and detachment to improve workability, maintains adhesion regardless of reduced elasticity to enhance product reliability, and is easy to manufacture with a simple configuration.

[0008] To achieve the above objective, the present invention provides an insert grommet configured to form a compression space capable of deformation upon compression through weight reduction in an assembly portion of a grommet formed to correspond to a mounting hole of a dust cover.

[0009] In addition, the present invention provides an insert grommet having first and second contact surfaces on both sides of an assembly portion that is recessed into a grommet body in which a plurality of wires are assembled or integrally molded.

[0010] In addition, the assembly of the present invention provides an insert grommet configured to have a shape that fits into a mounting hole and further comprises a contact portion that is recessed or protrudes on at least one side thereof.

[0011] In addition, the assembly part of the present invention provides an insert grommet that maintains an angle of 20 to 30° of the slimming shape.

[0012] Furthermore, the grommet of the present invention provides an insert grommet made of a soft material selected from silicone, urethane, or rubber.

[0013] As described above, according to the present invention, the mounting and detachment of the grommet are easy, thereby improving workability; the reliability of the product is enhanced by maintaining adhesion regardless of a decrease in elasticity; and the simple configuration makes manufacturing easy.

[0014] FIG. 1 is a side view illustrating a conventional grommet joint state.

[0015] FIG. 2 is a perspective view illustrating the shape of a grommet according to the present invention.

[0016] FIG. 3 is a cross-sectional view illustrating the cut state of a grommet according to the present invention.

[0017] FIG. 4 is a diagram showing the dust cover assembly state of a grommet according to the present invention.

[0018] FIG. 5 is a flowchart illustrating the assembled state of a grommet according to the present invention.

[0019] The present invention provides an insert grommet in which a compression space, which is deformable to be compressed toward the center of the grommet body upon compression through mold reduction, is installed inclined toward the center of the grommet body in an assembly portion of the grommet formed to correspond to the mounting hole of a dust cover.

[0020] Hereinafter, embodiments of the present invention will be described in detail based on the attached drawings.

[0021] FIG. 2 is a perspective view illustrating the shape of a grommet according to the present invention, FIG. 3 is a cross-sectional view illustrating the cut state of a grommet according to the present invention, FIG. 4 is a diagram illustrating the dust cover assembly state of a grommet according to the present invention, and FIG. 5 is a flowchart illustrating the assembly state of a grommet according to the present invention.

[0022] The grommet (100) of the present invention integrally forms an assembly part (130) that is recessed from the outer diameter side to the inner side around the grommet body (110) so as to correspond to the mounting hole (210) of the dust cover (200).

[0023] At this time, the assembly part (130) is integrally formed with a compression space (131) that is indented inwardly through weight reduction and can be deformed while being compressed in the central direction when the grommet body (110) is compressed.

[0024] That is, the compression space (131) of the present invention is formed so as to be sunken inward from the circumference of the grommet body (110) toward the center, thereby reducing the diameter when the grommet body (110) is compressed, so as to minimize interference with the entry of the mounting hole (210).

[0025] And, the above grommet (100) is formed such that a plurality of wires (170) are assembled into a through hole (119) formed in the grommet body (110) or are integrally formed on the outer side of the wire by double injection.

[0026] Furthermore, the above grommet (100) is provided with first and second contact surfaces (120) (140) that extend to the assembly part (130) and are in close contact with each of the two sides of the assembly part.

[0027] That is, the first contact surface (120) is formed to compress while facing toward the center of the grommet body (110).

[0028] Additionally, the assembly part (130) is provided with a contact part (135) that is recessed or protrudes on at least one side in a shape into which a mounting hole is fitted.

[0029] In addition, the assembly part (130) is configured so that the angle of the slimming shape formed by the first contact surface is maintained at 20 to 30°.

[0030] At this time, if the above-mentioned weight reduction angle is less than 20°, compression is not possible and the fitability is reduced, and if it is 30° or more, the contact area is reduced and watertightness and fixing power are reduced, so it is better to maintain the angle of the weight reduction shape at 20~30°.

[0031] Furthermore, the above grommet (100) is made of a soft material selected from silicone, urethane, or rubber.

[0032]

[0033] The operation of the present invention, configured as described above, is explained.

[0034] As illustrated in FIGS. 2 to 5, the grommet (100) of the present invention has an assembly part (130) formed in the grommet body (110) that is recessed from the outer diameter side to the inner side so as to correspond to the mounting hole (210) of the dust cover (200), so that when the grommet (100) is assembled into the mounting hole (210), the circumference of the assembly part (130) comes into close contact with the mounting hole.

[0035] At this time, the assembly part (130) has a compression space (131) integrally formed therein that can be deformed when compressed through weight reduction, so that when it enters the mounting hole (210), it is compressed and its diameter is minimized, thereby making it easy for the grommet to enter.

[0036] In addition, the above grommet (100) does not need to form a separate recessed space for compression on the outer side of the wire assembled by the compression space.

[0037] In addition, the above grommet (100) is configured such that a plurality of wires (170) are assembled to the grommet body (110) or formed integrally by double injection molding, so that when the grommet (100) is assembled into the mounting hole, the wires (170) are connected to the inside of the dust cover (200) through a connector, etc.

[0038] Furthermore, the above grommet (100) is integrally formed with first and second contact surfaces (120) (140) that extend to the assembly part (130) and are respectively in close contact with both sides of the perimeter of the mounting hole (210), so that it is fixed in a watertight state when assembled into the mounting hole.

[0039] In addition, the assembly part (130) is provided with a contact part (135) that is recessed or protrudes on at least one side in a shape into which a mounting hole is fitted, thereby allowing a compressive force to be applied during assembly and further increasing airtightness.

[0040] And, the above-mentioned contact portion (135) is integrally formed on one side of the first contact surface (120) where a space is formed by weight reduction, thereby increasing the contact surface area and improving airtightness.

[0041] In addition, the above assembly part (130) is preferably maintained at an angle of 20 to 30°, as if the angle of the slimming shape is less than 20°, compression is not possible and mounting is reduced, and if it exceeds 30°, the contact area is reduced and watertightness and fixing power are reduced.

[0042] Furthermore, the above grommet (100) is made of a soft material such as silicone, urethane, or rubber, which increases airtightness when in use and also allows it to be easily deformed, thereby improving ease of use.

[0043] The present invention enables easy joining and separating while maintaining airtightness during mounting by forming a compression space that can be compressed toward the center of the grommet body through mold reduction in the assembly part formed in the grommet to correspond to the mounting hole of the dust cover.

Claims

1. An insert grommet formed such that a compression space, which can be deformed into a state of being compressed toward the center of the grommet body during compression for connection through weight reduction in the assembly part of the grommet formed to correspond to the mounting hole of the dust cover, is installed at an angle toward the center of the grommet body.

2. The insert grommet according to claim 1, characterized in that the grommet body has first and second contact surfaces on both sides of an assembly portion that is recessed into a grommet body in which a plurality of wires are integrally formed.

3. The insert grommet according to claim 1, wherein the assembly part is provided with a contact part that is recessed or protrudes on at least one side thereof in a shape into which a mounting hole is fitted.

4. An insert grommet according to claim 1, wherein the assembly part is characterized by maintaining an angle of the slimming shape of 20 to 30°.

5. An insert grommet according to claim 1, characterized in that the grommet is made of a soft material selected from silicone, urethane, or rubber.

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