KR101897399B1 - Hole plug - Google Patents

Abstract

Provided is a hole plug capable of being mounted in various kinds of mounting holes with a different hole diameter and a different thickness of a hole edge part. According to the present invention, the hole plug (20) comprises: a main body part (22) inserted into a mounting hole of a mounting member; a first engaging part (24) formed on a front end (22A) side of the main body part (22) to protrude in an opposite direction to an insertion direction; a first flange part (26) disposed on the protruding direction side of the first engaging part (24) to enlarge a diameter thereof towards the insertion direction; a first surrounding wall part (28) protruding from the main body part (22) in an opposite side to the insertion direction to be connected to an inner end part (26B) of the first flange part (26); a second engaging part (30) to protrude from the first flange part (26) in an opposite direction to the insertion direction; a second flange part (32) disposed on the protruding direction side of the second engaging part (30) to enlarge a diameter thereof towards the insertion direction; and a second surrounding wall part (34) having a larger outer diameter than the first surrounding wall part (28), connected to an inner end part (32B) of the second flange part (32) by protruding in a direction opposite to the insertion direction from a diameter direction inside portion more than the second engaging part (30) of the first flange part (26).

Description

Hole plug {HOLE PLUG}

The present invention relates to a hole plug.

Patent Document 1 discloses a grommet mounted on a mounting hole of a mounting member. The grommet has a plurality of wrinkles protruding in a direction orthogonal to the inserting direction at intervals in the inserting direction in a shaft portion inserted into the mounting hole, and a head portion is formed at an end opposite to the inserting direction. The grommet is attached to the mounting hole with the corrugation bent in contact with the wall surface of the hole.

Patent Document 1: Japanese Patent Application Laid-Open No. 60-18362

However, in the grommet disclosed in Patent Document 1, it is possible to mount a plurality of kinds of mounting holes having different hole diameters by adjusting the amount of protrusion of the plurality of corrugations from the shaft portion. However, when the hole diameter of the mounting hole is large, the grommet tends to be displaced in the hole diameter direction. Particularly, when the mounting member is a thin plate (in the case where the thickness of the hole edge portion of the mounting hole is thin), there is a possibility that the hole wall face of the mounting hole does not contact one wrinkle or the wrinkle contact with the hole wall face, There is a possibility that the mounting state may be insufficient due to a large displacement in the radial direction.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a hole plug which can be attached to a plurality of types of mounting holes of different hole diameters and hole edge portions in consideration of the above facts.

The hole plug according to Claim 1 includes a main body portion inserted into a mounting hole formed in a mounting member, a first engaging portion formed on a tip side in an insertion direction of the main body portion and projecting toward the opposite side from the insertion direction, (Hereinafter, simply referred to as a "diameter") that extends in a direction toward the inserting direction and which is disposed on the protruding direction side of the engaging portion and which has an annular first flange portion extending from the main body portion A first circumferential wall portion projecting in a direction opposite to the inserting direction and connected to an end portion of the first flange portion on an inner side in the radial direction of the first flange portion and a second engaging portion protruding from the first flange portion in a direction opposite to the inserting direction An annular second flange portion disposed on the protruding direction side of the second engaging portion and diametrically directed toward the inserting direction, It is tea diameter projecting in the inserting direction and the opposite side from the portion of the inward direction and has the second is connected to the end portion inside the radial direction of the flange portion, the outer diameter of the second circumferential wall part of the first vat shape than the first peripheral wall.

In the hole plug according to claim 1, when the mounting hole of the mounting member is a small-diameter hole larger than the outer diameter of the first peripheral wall portion and smaller than the outer diameter of the second peripheral wall portion, the first peripheral wall portion The hole portion of the mounting hole is sandwiched by both the first engaging portion and the first flange portion on both sides (the side opposite to the inserting direction and the side opposite to the inserting direction). At this time, regardless of the thickness of the hole edge portion of the mounting hole, the hole portion of the mounting hole is fitted on both sides by the first engaging portion and the first flange portion, so that the hole plug is attached to the mounting hole. Further, even if an input in the hole diameter of the mounting hole is applied to the hole plug, the hole wall surface of the mounting hole is abutted against the outer peripheral surface of the first peripheral wall portion, so that the movement of the hole plug in the hole diameter direction is prevented. As a result, the mounting state of the hole plug can be maintained.

On the other hand, in the hole plug, when the mounting hole of the mounting member is a large-diameter hole larger than the outer diameter of the second peripheral wall portion and smaller than the outer diameter of the second flange portion, the second peripheral wall portion By inserting the main body portion, the hole edge portion of the mounting hole is sandwiched by both the second engaging portion and the second flange portion on both sides (the side opposite to the inserting direction and the side opposite to the inserting direction). At this time, regardless of the thickness of the hole edge portion of the mounting hole, the hole portion of the mounting hole is fitted on both sides by the second engaging portion and the second flange portion, so that the hole plug is attached to the mounting hole. Further, even if an input in the hole diameter of the mounting hole is applied to the hole plug, the hole wall surface of the mounting hole and the outer peripheral surface of the second peripheral wall portion are brought into contact with each other, thereby preventing the hole plug from moving in the hole diameter direction. As a result, the mounting state of the hole plug can be maintained.

As described above, according to the hole plug described in claim 1, it is possible to mount a plurality of types of mounting holes having different hole diameters and hole edge portions.

According to a second aspect of the present invention, in the hole plug according to the first aspect of the invention, the body portion is formed with a concave thickness reduction portion toward the opposite side from the insertion direction at the tip end.

Since the thickness reduction portion is formed in the body portion of the hole plug according to the second aspect of the present invention, the weight can be reduced compared with the case where the thickness reduction portion is not formed in the body portion. In addition, the material cost can be reduced.

According to a third aspect of the invention, in the hole plug according to the first aspect, the first engaging portion and the second engaging portion are annular.

In the hole plug according to the third aspect of the present invention, the first engaging portion is annular (continuous in the circumferential direction). Therefore, for example, when the first engaging portion in a protruding shape is intermittently arranged in the circumferential direction The contact area between the first engaging portion and the hole edge portion of the small-diameter hole (mounting hole) is increased, so that the airtightness of the small-diameter hole is improved.

Further, in the hole plug, since the second engaging portion is annular (continuous in the circumferential direction), for example, compared with the case where the projecting second engaging portion is intermittently arranged in the circumferential direction, The contact area between the engaging portion and the hole edge portion of the large-diameter hole (mounting hole) is increased, so that the airtightness with respect to the large-diameter hole is improved.

In the hole plug according to claim 1, the maximum outer diameter of the first engaging portion is smaller than the maximum outer diameter of the first flange portion, and when viewed in a direction perpendicular to the inserting direction, the first flange portion and the first The engaging portions overlap.

In such a hole plug, the maximum outer diameter of the first engaging portion is made smaller than the maximum outer diameter of the first flange portion. For example, as compared with the case where the maximum outer diameter of the first engaging portion is larger than the maximum outer diameter of the first flange portion The resistance when inserting the small-diameter hole into the small-diameter hole (the resistance when the first engaging portion is elastically deformed (warped) inward in the radial direction) is reduced. Thus, the insertion operation into the small-diameter hole becomes easy.

Further, in the hole plug, the first flange portion overlaps with the first engagement portion when viewed from the direction orthogonal to the insertion direction. For example, compared with the case where the first flange portion and the first engagement portion do not overlap, The restoring force (resilience against elastic deformation) of the first flange portion when the hole edge portion of the small-diameter hole is fitted from both sides by the first flange portion and the first engaging portion increases. Accordingly, the airtightness with respect to the small-diameter hole (mounting hole) is improved.

According to a fifth aspect of the invention, in the hole plug according to the first or third aspect, the maximum outer diameter of the second engaging portion is smaller than the maximum outer diameter of the second flange portion, and when viewed in a direction orthogonal to the inserting direction , The second flange portion and the second engagement portion overlap.

The maximum outer diameter of the second engaging portion is set to be smaller than the maximum outer diameter of the second flange portion in the hole plug described in Claim 5, for example, when the maximum outer diameter of the second engaging portion is larger than the maximum outer diameter of the second flange portion The resistance when inserting the large-diameter hole into the large-diameter hole (the resistance when the second engaging portion is elastically deformed (warped) inward in the radial direction) is reduced. Thus, the insertion operation into the large-diameter hole becomes easy.

Further, the second flange portion and the second engaging portion are overlapped with each other when viewed from the direction orthogonal to the insertion direction in the hole plug. For example, compared with the case where the second flange portion and the second engaging portion do not overlap The restoring force (restoring force against elastic deformation) of the second flange portion when the hole edge portion of the large-diameter hole is fitted from both sides by the second flange portion and the second engaging portion increases. As a result, the airtightness with respect to the large-diameter hole (mounting hole) is improved.

The hole plug according to Claim 6 and Claim 8 is the hole plug according to Claim 1, Claim 3 or Claim 5, wherein the second engaging portion has a part which is separated from the radially outer end of the first flange portion Position.

In the hole plug according to claim 6 and claim 8, since the second engaging part is disposed at a position spaced apart from the radially outer end of the first flange part (hereinafter, appropriately referred to as an "outer end"), The outer end of the flange portion is a free end. Thus, compared to, for example, the second engaging portion is disposed at the outer end portion of the first flange portion, the outer end of the first flange portion is easily deformed elastically (pliable) The resistance (the resistance when the outside end side of the first flange portion is elastically deformed (bent) inward in the radial direction) is lowered. Thus, the insertion operation into the large-diameter hole becomes easy.

Since the outer end of the first flange portion is likely to be elastically deformed in the hole plug, the first flange portion and the first flange portion are engaged with the first flange portion and the first flange portion when the hole edge portion of the small- The contact area between the outer end of the small-diameter hole and the hole edge portion of the small-diameter hole increases. Accordingly, the airtightness with respect to the small-diameter hole (mounting hole) is improved.

The present invention can provide a hole plug that can be attached to a plurality of types of mounting holes having different hole diameters and different thicknesses of hole edge portions.

1 is a perspective view of a hole plug according to an embodiment of the present invention viewed from an oblique upper side.
Fig. 2 is a perspective view of the hole plug shown in Fig. 1 viewed from an oblique lower side.
3 is a cross-sectional view along the inserting direction of the hole plug shown in Fig.
4 is a sectional view taken along line 4-4 of the hole plug shown in Fig.
Fig. 5 is a cross-sectional view along the inserting direction of the hole plug shown in Fig. 1, in which the hole plug is mounted on the small-diameter hole of the thick plate.
Fig. 6 is a cross-sectional view of the hole plug shown in Fig. 1 taken along the inserting direction, showing a state in which the hole plug is mounted on the small-diameter hole of the thin plate material;
Fig. 7 is a cross-sectional view of the hole plug shown in Fig. 1 along the inserting direction of the hole plug, showing the state where the hole plug is attached to the large-diameter hole of the thick plate member.
Fig. 8 is a cross-sectional view of the hole plug shown in Fig. 1 along the inserting direction, showing a state in which the hole plug is attached to a large-diameter hole of a thin plate material;
Fig. 9 is a cross-sectional view along the inserting direction of a hole plug showing a state in which two thin plate members are connected by the hole plug shown in Fig. 1;
10 is a cross-sectional view (corresponding to the cross-sectional view of FIG. 3) of a hole plug according to another embodiment of the present invention.

Next, a hole plug 20 according to an embodiment of the present invention will be described with reference to Figs. 1 to 9. Fig. The hole plug 20 of the present embodiment is a member which is attached to a through hole formed in, for example, a panel member (body panel or the like) of a vehicle and closes the through hole. 1 to 9 show the inserting direction of the hole plug 20 and the reference symbol CL denotes the center line of the hole plug 20. In the figure,

1 to 9, the hole plug 20 includes a body portion 22, a first engaging portion 24, a first flange portion 26, a first peripheral wall portion 28, And includes a fitting portion 30, a second flange portion 32, and a second peripheral wall portion 34. In addition, the hole plug 20 of the present embodiment is a one-piece molded product composed of an elastically deformable resin.

As shown in Figs. 1 to 3, the main body portion 22 is substantially columnar and inserted into a mounting hole formed in the panel member. The main body portion 22 is a large diameter portion 22C having a larger diameter than the other portion (hereinafter referred to as "small-diameter portion 22B") of the distal end 22A side in the insertion direction.

The body portion 22 is formed with a concave thickness reducing portion 23 toward the opposite side from the insertion direction at the distal end 22A.

2 and 3, the first engaging portion 24 is formed at the front end 22A side of the main body portion 22 and protrudes toward the opposite side from the insertion direction. Specifically, the first engaging portion 24 protrudes from the outer peripheral surface of the large-diameter portion 22C in the opposite direction to the insertion direction, and is diametrically enlarged (toward the opposite side of the insertion direction). That is, the first engaging portion 24 is inclined with respect to the center line CL when viewed from a cross section along the insertion direction.

2 and 4, the first engaging portion 24 is formed on the outer circumferential surface of the main body portion 22 in the circumferential direction. As a result, the first engaging portion 24 is annular.

3, the maximum outer diameter D1 of the first engagement portion 24 is set to be smaller than the maximum outer diameter D2 of the first flange portion 26 described later in detail. The maximum outer diameter D1 of the first engaging portion 24 is larger than the radially outer end 24A of the first engaging portion 24 (hereinafter referred to as "outer end 24A" And the maximum outer diameter D2 of the first flange portion 26 is measured at an end portion radially outward of the first flange portion 26 (hereinafter referred to as "outer end portion 26A" It is outer diameter.

The first engaging portion 24 and the first flange portion 26 overlap (overlap each other) in a direction orthogonal to the inserting direction (the same direction as the radial direction of the body portion 22). In other words, the outer end portion 24A of the first engaging portion 24 is located on the insertion direction side of the outer end portion 26A of the first flange portion 26 (see Fig. 3).

As shown in Figs. 2 and 3, the first flange portion 26 is disposed on the protruding direction side of the first engaging portion 24. 3, the protruding direction of the first engaging portion 24 is indicated by an arrow Y1. The first flange portion 26 is formed into an annular shape that is diametrically directed toward the insertion direction.

3 and 4, the first peripheral wall portion 28 has a cylindrical shape and protrudes from the main body portion 22 in a direction opposite to the insertion direction. The first peripheral wall portion 28 has an end portion in the radial direction of the first flange portion 26 (Hereinafter referred to as " inner end portion 26B "). Specifically, the first peripheral wall portion 28 protrudes from the step portion 22D formed between the other portion of the main body portion 22 and the large-diameter portion 22C in the opposite direction to the insertion direction. The first peripheral wall portion 28 of the present embodiment is formed with a bent portion 28A bent in a crank shape and the diameter of the first peripheral wall portion 28 is smaller than the diameter of the first peripheral wall portion 28 And a large diameter on the opposite side to the insertion direction.

As shown in Figs. 2 and 3, the second engaging portion 30 is formed in the first flange portion 26 and protrudes in the opposite direction from the insertion direction. Specifically, the second engaging portion 30 protrudes from the outer peripheral surface 26C of the first flange portion 26 in a direction opposite to the insertion direction, and is diametrically enlarged toward the opposite side from the insertion direction (the diameter is extended ). That is, the second engaging portion 30 is inclined with respect to the center line CL when viewed from a cross section along the insertion direction.

2 and 4, the second engaging portion 30 is formed on the outer circumferential surface 26C of the first flange portion 26 along the circumferential direction. As a result, the second engaging portion 30 has an annular shape.

3, the maximum outer diameter D3 of the second engaging portion 30 is set to be smaller than the maximum outer diameter D4 of the second flange portion 32 described later in detail. The maximum outer diameter D3 of the second engaging portion 30 is larger than the radially outer end 30A of the second engaging portion 30 (hereinafter referred to as "outer end 30A" And the maximum outer diameter D4 of the second flange portion 32 is measured at an end portion radially outward of the second flange portion 32 (hereinafter referred to as "outer end portion 32A" It is outer diameter.

Further, the second engaging portion 30 and the second flange portion 32 overlap (overlap each other) in a direction orthogonal to the insertion direction. In other words, the outer end portion 30A of the second engaging portion 30 is located on the insertion direction side of the outer end portion 32A of the second flange portion 32 (see Fig. 3).

The second engaging portion 30 is disposed at a position apart from the outer end 26A of the first flange portion 26. [ Specifically, the second engaging portion 30 is disposed at a predetermined distance from the outer end portion 26A toward the inner end portion 26B.

As shown in Figs. 2 and 3, the second flange portion 32 is disposed on the protruding direction side of the second engaging portion 30. 3, the protruding direction of the second engaging portion 30 is indicated by an arrow Y2. The second flange portion 32 is formed in an annular shape that is diametrically directed toward the insertion direction.

In the present embodiment, the protruding direction of the first engaging portion 24 and the protruding direction of the second engaging portion 30 are the same direction. Further, the present invention is not limited to the above-described configuration, and the protruding direction of the first engaging part 24 and the protruding direction of the second engaging part 30 may be different directions.

In the present embodiment, the protruding direction of the first flange portion 26 is the same as the protruding direction of the second flange portion 32. The present invention is not limited to the above-described configuration, and the projecting direction of the first flange portion 26 and the projecting direction of the second flange portion 32 may be different directions.

3 and 4, the second peripheral wall portion 34 is formed in a cylindrical shape so that the first flange portion 26 is inserted from a portion radially inwardly of the second engaging portion 30 in the inserting direction And is connected to the radially inner end of the second flange portion 32 (hereinafter referred to as "inner end portion 32B" as appropriate). Specifically, the second peripheral wall portion 34 has a bottom portion connected to a bottom portion of the second engaging portion 30. The second peripheral wall portion 34 of the present embodiment is formed with a bent portion 34A bent in a crank shape and the second peripheral wall portion 34 has a diameter smaller than that of the insertion direction side with the bend portion 34A interposed therebetween And a large diameter on the opposite side to the insertion direction.

3, the outer diameter D6 of the second peripheral wall portion 34 is larger than the outer diameter D5 of the first peripheral wall portion 28. As shown in Fig.

Next, the operation and effect of the hole plug 20 of the present embodiment will be described.

In the following description, the panel members 80 and 82 for mounting the hole plug 20 are each a thick plate member of the same thickness, and the panel members 84 and 86 are thin plate members of the same thickness.

The panel members 80 and 84 are formed with small diameter holes 80A and 84A that are larger than the outer diameter D5 of the first peripheral wall portion 28 and smaller than the outer diameter D6 of the second peripheral wall portion 34 . The small diameter holes 80A and 84A have the same hole diameters D7 and D8 and the thicknesses T1 and T2 of the hole edge portions 80B and 84B are different from each other. In addition, the thickness T1 is larger than the thickness T2.

The panel members 82 and 86 are provided with large diameter holes 82A and 86A which are larger than the outer diameter D6 of the second peripheral wall portion 34 and smaller than the maximum outer diameter D4 of the second flange portion 32, Respectively. The large diameter holes 82A and 86A have the same hole diameters D9 and D10 and the hole edge portions 82B and 86B have different thicknesses T3 and T4. Further, the thickness T3 is thicker than the thickness T4. The panel members 80, 82, 84, and 86 of the present embodiment are each an example of the mounting member in the present invention. The small-diameter holes 80A and 84A and the large-diameter holes 82A and 86A of the present embodiment are examples of the mounting holes in the present invention.

When the hole plug 20 is mounted on the small diameter hole 80A of the panel member 80 which is a thick plate member, an end portion opposite to the inserting direction of the main body portion 22 (hereinafter referred to as a "pressing portion 22E" Thereby causing the first engaging portion 24 to elastically deform (warp) inward in the radial direction and to exit the small-diameter hole 80A. As shown in Fig. 5, when the first engaging portion 24 exits the small-diameter hole 80A, the first engaging portion 24 is restored to the original state (i.e., restored so as to protrude outward in the radial direction). Further, since the panel member 80 is a thick plate member, the first flange portion 26 can be pushed up (i.e., can be elastically deformed so as to be pushed up) from the inner end portion 26B.

Here, the first flange portion 26 abuts against the hole edge portion 80B of the small-diameter hole 80A so that the outer edge portion 26A presses the hole edge portion 80B toward the insertion direction side by its restoring force. The outer end portion 24A of the first engaging portion 24 abuts against the hole edge portion 80B on the opposite side from the outer end portion 26A to support the hole edge portion 80B.

The hole edge portion 80B of the small-diameter hole 80A is sandwiched by both the first engaging portion 24 and the first flange portion 26 on both sides (the side opposite to the inserting direction and the inserting direction). That is, the hole plug 20 is attached to the small-diameter hole 80A.

Even if the input of the small diameter hole 80A in the hole diameter direction acts on the hole plug 20, the hole wall surface of the small hole 80A and the outer peripheral surface of the first peripheral wall portion 28 are in contact with each other, The movement in the hole diameter direction is prevented. As a result, the mounting state of the hole plug 20 can be maintained.

When the hole plug 20 is mounted on the small diameter hole 84A of the panel member 84 which is a thin plate member, the pressing portion 22E of the main body portion 22 is pressed so that the first engaging portion 24 Thereby allowing the small aperture 80A to exit. As shown in Fig. 6, the first engaging portion 24 restores to the original state when it exits the small-diameter hole 84A. Since the panel member 84 is a thin plate member, the outer end portion 26A can be pushed up from the bottom of the second engaging portion 30 of the first flange portion 26 (that is, It can be elastically deformed so as to be pushed up).

Here, the first flange portion 26 abuts against the hole edge portion 84B of the small-diameter hole 84A to press the hole edge portion 84B toward the insertion direction side by its restoring force. The outer end portion 24A of the first engaging portion 24 abuts against the hole edge portion 84B on the opposite side from the outer end portion 26A to support the hole edge portion 84B.

The hole edge portion 84B of the small-diameter hole 84A is sandwiched by the first engaging portion 24 and the first flange portion 26 on both sides (the side opposite to the inserting direction and the inserting direction). That is, the hole plug 20 is attached to the small-diameter hole 84A.

Even if the input of the small diameter hole 84A in the hole diameter direction acts on the hole plug 20, the hole wall surface of the small diameter hole 84A and the outer circumferential surface of the first circumferential wall portion 28 are in contact with each other, The movement in the hole diameter direction is prevented. As a result, the mounting state of the hole plug 20 can be maintained.

Therefore, in the hole plug 20, the first engaging portion 24 and the first flange portion 26 are engaged with each other regardless of the thicknesses T1 and T2 of the hole edge portions 80B and 84B of the small-diameter holes 80A and 84A, The hole edge portions 80B and 84B of the small-diameter holes 80A and 84A can be inserted from both sides.

When the hole plug 20 is mounted on the large diameter hole 82A of the panel member 82 which is a thick plate member, the pressing portion 22E of the main body portion 22 is pressed so that the second engaging portion 30 Diameter hole 82A while elastically deforming (bending) it inward in the radial direction. As shown in Fig. 7, when the second engaging portion 30 exits the large-diameter hole 82A, the second engaging portion 30 is restored to its original state (i.e., restored so as to protrude outward in the radial direction). Further, since the panel member 82 is a thick plate member, the second flange portion 32 can be pushed up (that is, can be elastically deformed so as to be pushed up) from the inner end portion 32B.

Here, in the second flange portion 32, the outer end portion 32A abuts against the hole edge portion 82B of the large-diameter hole 82A to press the hole edge portion 82B toward the insertion direction side by its restoring force. The outer end portion 30A of the second engaging portion 30 abuts against the hole edge portion 82B on the opposite side of the outer end portion 32A to support the hole edge portion 82B.

The second engaging portion 30 and the second flange portion 32 sandwich the hole edge portion 82B of the large diameter hole 82A on both sides (on the side of the insertion direction and on the side opposite to the insertion direction). That is, the hole plug 20 is attached to the large-diameter hole 82A.

The hole wall of the large diameter hole 82A and the outer peripheral surface of the second circumferential wall portion 34 are brought into contact with each other so that the diameter of the hole plug 20 is reduced, The movement in the hole diameter direction is prevented. As a result, the mounting state of the hole plug 20 can be maintained.

When the hole plug 20 is mounted on the large diameter hole 86A of the panel member 86 which is a thin plate member, the pressing portion 22E of the main body portion 22 is pressed to press the second engaging portion 30 Causing the hole 86A to exit. As shown in Fig. 8, when the second engagement portion 30 exits the large-diameter hole 86A, the second engagement portion 30 restores the original state. Further, since the panel member 86 is a thin plate member, the second flange portion 32 can be slightly pushed up (that is, can be elastically deformed so as to be pushed up) from the inner end portion 32B as a starting point. .

Here, in the second flange portion 32, the outer end portion 32A is abutted against the hole edge portion 86B of the large-diameter hole 86A to press the hole edge portion 86B toward the insertion direction side by its restoring force. The outer end portion 32A of the second engaging portion 30 abuts against the hole edge portion 86B on the opposite side from the outer end portion 32A to support the hole edge portion 86B.

Thus, the hole edge portion 86B of the large-diameter hole 86A is sandwiched by both the second engaging portion 30 and the second flange portion 32 on both sides (the side opposite to the inserting direction and the inserting direction). That is, the hole plug 20 is attached to the large-diameter hole 86A.

The hole wall of the large-diameter hole 86A and the outer peripheral surface of the second peripheral wall portion 34 are brought into contact with each other so that the hole plug 20 is inserted into the hole plug 20, The movement in the hole diameter direction is prevented. As a result, the mounting state of the hole plug 20 can be maintained.

Therefore, in the hole plug 20, the second engaging portion 30 and the second flange portion 32 can be formed without regard to the thicknesses T3 and T4 of the hole edge portions 82B and 86B of the large-diameter holes 82A and 86A, The hole edge portions 82B and 86B of the large diameter holes 82A and 86A can be fitted on both sides.

From the above, according to the hole plug 20, it is possible to mount a plurality of types of mounting holes having different hole diameters and hole edge portions.

Since the thickness reduction portion 23 is formed in the main body portion 22 of the hole plug 20, the thickness can be reduced compared to, for example, the case where the thickness reduction portion is not formed in the main body portion 22 . In addition, the material cost can be reduced.

Since the first engaging portion 24 of the hole plug 20 is annular (continuous in the circumferential direction), for example, the protruding first engaging portion is intermittently arranged in the circumferential direction The contact area between the first engaging portion 24 and the hole edge portions 80B and 84B of the small diameter holes 80A and 84A is increased so that the airtightness of the small diameter holes 80A and 84A is improved.

Further, in the hole plug 20, since the second engaging portion 30 is annular (continuous in the circumferential direction), for example, the protruding second engaging portion is disposed in the circumferential direction The contact area between the second engaging portion 30 and the hole edge portions 82B and 86B of the large diameter holes 82A and 86A is increased as compared with the case where the large diameter holes 82A and 86A are formed .

Since the maximum outer diameter D1 of the first engagement portion 24 is made smaller than the maximum outer diameter D2 of the first flange portion 26 in the hole plug 20, Compared with the maximum outer diameter D1 of the first flange portion 26 being larger than the maximum outer diameter D2 of the first flange portion 26, ) Is elastically deformed (warped) inward in the radial direction. This facilitates the insertion operation into the small-diameter holes 80A and 84A.

Since the first engaging portion 24 and the first flange portion 26 are overlapped with each other in the hole plug 20 in the direction orthogonal to the inserting direction, 84B of the small diameter holes 80A, 84A by the first flange portion 26 and the first engaging portion 24 as compared with the case where the first flange portion 26 and the first flange portion 26 do not overlap each other, (Restoring force against elastic deformation (bending)) of the first flange portion 26 when the flange portion 26 is fitted on both sides increases. Thus, the airtightness with respect to the small-diameter holes 80A and 84A is improved.

On the other hand, in the hole plug 20, since the maximum outer diameter D3 of the second engaging portion 30 is made smaller than the maximum outer diameter D4 of the second flange portion 32, for example, Compared with the maximum outer diameter D3 of the fitting portion 30 being larger than the maximum outer diameter D4 of the second flange portion 32, the insertion resistance at the time of insertion into the large diameter holes 82A, 86A (Resistance to elastic deformation (bending) of the core 30 inward in the radial direction). This facilitates the insertion operation into the large-diameter holes 82A, 86A.

The second engaging portion 30 and the second flange portion 32 are overlapped with each other in the hole plug 20 in the direction orthogonal to the inserting direction. For example, the second engaging portion The hole portions 82B and 86B of the large diameter holes 82A and 86A are formed by the second engaging portion 30 and the second flange portion 32 in comparison with the case where the first flange portion 30 and the second flange portion 32 do not overlap each other, (Restoring force against elastic deformation) of the second flange portion 32 when the flange portion 32 is fitted on both sides increases. Thus, the airtightness with respect to the large-diameter holes 82A and 86A is improved.

Since the second engaging portion 30 is disposed at a position apart from the outer end 26A of the first flange portion 26 in the hole plug 20, 26A become free ends. This allows the outer end portion 26A of the first flange portion 26 to be resiliently deformed as compared with, for example, the second engaging portion 30 disposed at the outer end 26A of the first flange portion 26. [ When the insertion resistance (the side of the outer end portion 26A of the first flange portion 26) is elastically deformed (bent) inward in the radial direction when it is inserted into the large-diameter holes 82A, 86A, Resistance] is lowered. This facilitates the insertion operation into the large-diameter holes 82A, 86A.

Since the outer end portion 26A of the first flange portion 26 is likely to be elastically deformed in the hole plug 20, the first engagement portion 24 and the first flange portion 26 form the small-diameter holes 80A, The outer edge 26A of the first flange portion 26 and the hole edge portions 80B and 84B of the small diameter holes 80A and 84A when the hole edge portions 80B and 84B of the small diameter holes 84A and 84A are fitted from both sides, The area increases. Thus, the airtightness with respect to the small-diameter holes 80A and 84A is improved.

9, the hole plug 20 is attached to the small-diameter hole 80A of the panel member 80 and the small-diameter hole 84A of the panel member 84, respectively, (84) can be connected. Likewise, the hole plug 20 can connect the panel member 82 and the panel member 86 together.

(Other Embodiments)

In the above-described embodiment, the hole plug 20 includes the body portion 22, the first engaging portion 24, the first flange portion 26, the first peripheral wall portion 28, the second engaging portion 30, The second flange portion 32 and the second peripheral wall portion 34, but the present invention is not limited to this structure. 10, the third engaging portion 42, the third flange portion 44, and the third peripheral wall portion 46 (see Fig. 10) are provided in addition to the respective constitutions of the hole plug 20, As shown in Fig. Specifically, the third engaging portion 42 protrudes from the second flange portion 32 in a direction opposite to the inserting direction, the third flange portion 44 is annular, and the third engaging portion 42, The third circumferential wall portion 46 is formed in the shape of a cylinder and the portion of the second flange portion 32 on the radially inward side from the third engaging portion 42 is located on the protruding direction side of the second flange portion 32, And the outer diameter D11 is larger than the outer diameter D6 of the second peripheral wall portion 34. The outer diameter D11 of the second flange portion 32 is larger than the outer diameter D6 of the second peripheral wall portion 34. [ With this configuration, it is possible to mount the mounting hole in a larger number of types. Further, a plurality of engagement portions, flange portions, and peripheral wall portions may be added in addition to the third engaging portion 42, the third flange portion 44, and the third peripheral wall portion 46. [

The inner end portion 32B of the second flange portion 32 is located on the opposite side of the inserting direction than the inner end portion 26B of the first flange portion 26 in the above described embodiment. The present invention is not limited to the above-described configuration, and the inner end portion 26B of the first flange portion 26 and the inner end portion 32B of the second flange portion 32 may be disposed at the same position in the inserting direction.

Although the bottom of the second peripheral wall portion 34 is connected to the bottom of the second engaging portion 30 in the above embodiment, the present invention is not limited to this structure, and the second peripheral wall portion 34 The second engaging portion 30 may be spaced apart.

Although the second engagement portion 30 is disposed at a position spaced apart from the outer end 26A of the first flange portion 26 in the above-described embodiment, the present invention is not limited to this configuration, The engaging portion 30 may be disposed at the outer end portion 26A of the first flange portion 26. [

Although the embodiment of the present invention has been described above, the present invention is not limited to the above, and it goes without saying that it is possible to carry out various modifications other than the above within the scope of the present invention.

20: Hole plug 22:
22A: tip 23: thickness reduction part
24: first engaging portion 24A: outer end (radially outer end)
26: first flange portion 26A: outer end (radially outer end)
26B: Inner end (radially inward end)
28: first peripheral wall portion 30: second engaging portion
30A: outer end (radially outer end)
32: second flange portion 32A: outer end (radially outer end)
32B: Inner end (radially inward end)
34: second peripheral wall portion 40: hole plug
80 to 86: Panel member (mounting member) 80A, 84A: Small diameter hole (mounting hole)
82A, 86A: Large diameter hole (mounting hole)
D1: maximum outer diameter (maximum outer diameter of the first engagement portion)
D2: Maximum outer diameter (maximum outer diameter of the first flange portion)
D3: maximum outer diameter (maximum outer diameter of the second engagement portion)
D4: Maximum outer diameter (maximum outer diameter of the second flange portion)
D5: outer diameter (outer diameter of first peripheral wall portion)
D6: outer diameter (outer diameter of the second peripheral wall portion)
X: Insertion direction
Y1: projecting direction (projecting direction of the first engaging portion)
Y2: protruding direction (protruding direction of the second engaging portion)

Claims (8)

A body portion inserted into a mounting hole formed in the mounting member,
A first engaging portion formed at a distal end side in the inserting direction of the main body portion and protruding in a direction opposite to the inserting direction,
An annular first flange portion disposed on the protruding direction side of the first engaging portion and having a large diameter toward the inserting direction,
A tubular first peripheral wall portion protruding from the body portion in a direction opposite to the inserting direction and connected to an inner end of the first flange portion in the radial direction,
A second engaging portion protruding from the first flange portion in a direction opposite to the inserting direction;
An annular second flange portion disposed on the protruding direction side of the second engaging portion and enlarged toward the inserting direction,
The first flange portion is protruded from a portion radially inwardly of the second engaging portion in a direction opposite to the inserting direction and is connected to an inner end in a radial direction of the second flange portion and has an outer diameter larger than that of the first peripheral wall portion And has a second cylindrical peripheral wall portion,
Wherein a maximum outer diameter of the first engaging portion is smaller than a maximum outer diameter of the first flange portion and the first flange portion and the first engaging portion overlap when viewed in a direction perpendicular to the inserting direction plug.
The method according to claim 1,
Wherein the body portion is formed with a concave thickness reduction portion toward the opposite side from the insertion direction at the tip end.
The method according to claim 1,
Wherein the first engaging portion and the second engaging portion are each formed into an annular shape.
delete The method according to claim 1 or 3,
Wherein a maximum outer diameter of the second engaging portion is smaller than a maximum outer diameter of the second flange portion and the second flange portion overlaps with the second engaging portion when viewed in a direction orthogonal to the inserting direction plug.
The method according to claim 1 or 3,
And the second engaging portion is disposed at a position spaced apart from the radially outer end of the first flange portion.
delete The method of claim 5,
And the second engaging portion is disposed at a position spaced apart from the radially outer end of the first flange portion.

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