JP2001151153A - Hollow part interrupting tool for hollow structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a hollow part interrupting tool for a hollow structure requiring a measure to drain commonly usable as a hollow part interrupting tool for a hollow structure requiring no measure to drain to facilitate the part manufacture and stock management of the hollow part interrupting tools. SOLUTION: This hollow part interrupting tool for hollow structure for interrupting the hollow part of a hollow structure comprises a through-hole 41 allowing one side of the hollow part to communicate with the other side thereof through a foamed member 11 and an opening and closing member moving between a closed position and an opened position to open and close the through-hole 41. When the through-hole 41 is opened by the opening and closing member, the drain from a drain hose 8 can be passed through the through-hole 41, and the hollow part interrupting tool 10 can be used for a hollow structure requiring the measure to drain. When the through-hole 41 is closed by the opening and closing member, the effect by the hollow interrupting tool 10 such as sound insulation is improved, and this tool 10 can be used for a hollow structure requiring no measure to drain.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hollow structural member for a hollow structure in which a hollow portion of a hollow structure is blocked by a foam member.

[0002]

2. Description of the Related Art Pillars, rocker panels,
BACKGROUND ART In order to enhance the effects of vibration suppression, sound insulation, and the like in a hollow structure such as a roof side panel, a technique of blocking a hollow portion of the hollow structure with a foam using a hollow portion blocking device is generally known. I have. However, if the hollow portion of the hollow structure is completely blocked by the foam, it becomes impossible to pass, for example, a drain hose for rainwater provided in a vehicle with a sunroof or the like through the hollow portion of the hollow structure (mainly the front pillar). . For this reason, in a vehicle with a sunroof or the like, a hollow-portion blocking device 110 (see FIG. 13A) having an opening is used so that the drain hose can be passed even after the hollow portion is blocked. However, the hollow blocker 11 having an opening is provided.
In the case of No. 0, since the hollow portion is insufficiently blocked at the opening 122k, the effect of sound insulation and the like is reduced when the drain hose is not passed. For this reason, for general vehicles other than the vehicle with a sunroof, the hollow blocking device 130 without an opening shown in FIG. 13B is used.

That is, since different types of hollow blockers must be used for a vehicle with a sunroof and other general vehicles, the number of types of hollow blockers increases and the management of components becomes troublesome. There is a problem that the stock of parts increases. In order to solve this problem to some extent, a method in which the opening 122k of the hollow blockage member 110 used in a vehicle with a sunroof is closed and used for a general vehicle is preferably used.

In this method, a holder body 120 (see FIG. 13A) for supporting a foamable base material 111 therebetween is manufactured by injection molding of a resin. As shown in FIG. 16A, the molding die 100 used for manufacturing the holder body 120 is formed in such a shape that one end of a cylindrical body 122 of the holder body 120 is closed. Therefore, when the holder body 120 is injection-molded using the molding die 100, as shown in FIG.
The holder body 120 in which 2k is closed is formed. Further, in order to manufacture the holder body 120 in which both ends of the cylindrical body 122 are opened, as shown in FIG.
Is set. In this state, the holder body 120 is injection-molded to form the opening 1 as shown in FIG.
A holder body 120 having 22k is formed. According to this method, the hollow blocker 110 can be used for general vehicles, and the components of the hollow blocker can be shared to some extent.

[0005]

However, even in the above-described method, the holder body 120 having the end of the cylindrical body 122 opened.
Since it is necessary to separately manufacture the holder body 120 (see FIG. 16B) in which the end of the cylindrical body 122 is closed (see FIG. 15B) and separately manage the stock, Is troublesome, and inventory management is troublesome. The present invention
In view of the above-mentioned conventional problems, it is common to use a hollow-portion blocking device used for a hollow structure requiring drain countermeasures and a hollow-portion blocking device used for a hollow structure not requiring drain countermeasures. It is an object of the present invention to facilitate the production of parts and inventory management of the hollow part shut-off device.

[0006]

SUMMARY OF THE INVENTION The above-mentioned object is attained by a hollow structural member for a hollow structure according to the present invention. According to the present invention, the through-hole has a structure in which one and the other of the hollow portion communicate with each other through the foam member, and the through-hole is opened and closed by an opening and closing member that moves between a closed position and an open position. For this reason, if a through hole is opened by the opening / closing member, the drain from the drain hose can be passed through the through hole, and the hollow blocker can be used for a hollow structure requiring drain countermeasures. In addition, by closing the through hole with the opening / closing member, the effect of sound insulation and the like by the hollow blocker is improved, and it can be used for a hollow structure that does not require drain countermeasures. In other words, since the hollow blocker of the hollow structure that requires drain countermeasures and the hollow blocker of the hollow structure that does not require drain countermeasures can be shared, the production and inventory management of the hollow blockers can be easily performed. Become.

[0007] The above-mentioned object is achieved by a hollow structural member for a hollow structure according to the present invention. According to the present invention, since the through-hole is formed by the cylindrical body disposed so as to penetrate the foamed member, the accuracy of the through-hole can be increased. In addition, because the opening and closing member moves inside the cylindrical body,
There is no need to provide a separate moving space for the opening and closing members.

[0008] The above-mentioned object is achieved by a hollow structural member of a hollow structure according to the third aspect. According to the present invention, since the open / close member is pressed by the pipe housed in the hollow portion and the open / close member is moved between the closed position and the open position, there is no need to separately provide a moving means for the open / close member.

[0009] The above-mentioned object is attained by a hollow structural member of a hollow structure according to a fourth aspect. According to the present invention, the opening / closing member and the cylindrical body are formed in shapes symmetric with respect to a virtual center line perpendicular to the axis. For this reason,
The direction in which the opening / closing member is pressed by the pipe is not limited. Further, even if the cylindrical body is divided at the center, the divided pieces can be formed in the same shape, so that the production of parts and inventory management become easy.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) FIG.
7 and FIG. 14, a description will be given of the hollow part blocking device of the hollow structure according to the first embodiment of the present invention. The hollow structure blocker of the hollow structure according to the present embodiment blocks a hollow portion of a hollow structure such as a front pillar of a vehicle body with a foam, and enhances effects such as vibration suppression and sound insulation of the hollow structure. It is a member for. Here, FIG. 1 is an exploded perspective view of the hollow blocker, FIG. 2 is an overall perspective view showing a closed state of the hollow blocker, and FIG. 3 (A) is an open state of the hollow blocker. FIG. 3B is a perspective view of the valve body. 4 and 5 are a longitudinal sectional view and a plan view showing a state in which a hollow block is attached to a hollow structure. FIG. 6 is a longitudinal sectional view showing a state in which a hollow structure of a general vehicle is blocked by a hollow block, and FIG. 7 is a longitudinal sectional view showing a state in which a hollow structure of a vehicle with a sunroof is blocked by the hollow block. .

The hollow structure 1 (the front pillar 1 etc.)
As shown in FIG. 5 and the like, the inner panel 2 and the outer panel 4
The outer panel 4 and the outer panel 4 are spot-welded with each other at the flange portions 3 and 5, thereby forming a hollow portion 6 having a substantially rectangular cross section inside. For vehicles with sunroof,
As shown in FIG. 4, a drain hose 8 is provided in the hollow portion 6 of the front pillar 1. The drain hose 8 is a hose for guiding drain from a drainage gutter (not shown) provided near the periphery of the sunroof 9 to a predetermined position, and the upper end of the drain hose 8 is connected to the gutter. Connected to. Further, the lower end of the drain hose 8 is inserted into the cylindrical body 40 of the hollow blockage device 10 described later. At a predetermined position of the inner panel 2, as shown in FIG. 5 and the like, there is provided a mounting hole 7 into which the locking clip 31 of the hollow blocker 10 is fitted. The mounting hole 7 is formed in a non-circular shape such as an elliptical shape, an elliptical shape, and a rectangular shape to prevent rotation.

The hollow blocker 10 is a member for blocking the hollow section 6 of the front pillar 1 with a foam, and as shown in FIG. 1, a foam base 11 and the foam base 11. And a holder body 20 for supporting and sandwiching the foaming direction. The holder body 20 is formed by injecting a heat-resistant synthetic resin (thermoplastic synthetic resin) into a mold (not shown). Holder body 20
Has a pair of holder plates 21 vertically opposed to each other with the foamable base material 11 therebetween.

The pair of holder plates 21 are flat plates formed into a shape substantially equal to a cross section orthogonal to the longitudinal direction of the hollow portion 6, and at a position crossing the hollow portion 6 as shown in FIG. When it is arranged, it is manufactured in such a size that the paint can pass between the peripheral edge of the holder plate 21 and the inner peripheral wall surface of the hollow portion 6. The pair of holder plates 21 are connected at predetermined positions on the peripheral edge thereof by a pedestal portion 32 of a locking clip 31. The locking clip 31 is a member for elastically engaging with the mounting hole 7 of the inner panel 2 to position the hollow blocker 10 in the hollow 6, and is fixed to both holder plates 21. A pedestal portion 32, a leg portion 33 extending laterally from a side surface of the pedestal portion 32 and inserted into the mounting hole 7, and the leg portion 33
Are extended from both sides of the front end portion of the
And a pair of elastic locking pieces 34 that elastically engage with the periphery of the pair.

The substantially central portions of the two holder plates 21 are connected by a substantially cylindrical tube 40 penetrating the holder plates 21. The tubular body 40 is a member that allows the one hollow portion 6 and the other hollow portion 6 to communicate with each other so that the drain can pass therethrough after the hollow portion blocking member 10 foams and blocks the hollow portion 6. The plate 21 is formed so as to protrude by a predetermined length from both upper and lower surfaces. The inner diameter of the cylinder 40 is set to a size that allows the drain hose 8 to be inserted.

A valve body 50 for opening and closing the through hole 41 of the cylindrical body 40 is housed inside the cylindrical body 40. Valve body 50
As shown in FIG. 3B, a disk 52 having a diameter substantially equal to the inner diameter of the cylinder 40 and a blade plate 54 having a cross-shaped cross section for holding the disk 52 coaxially with the cylinder 40. Have been. The blade plate 54 is manufactured to have a width and length that can be accommodated inside the cylindrical body 40, and projections 56 are formed on both ends in the width direction at the upper end of the blade plate 54.

A slit 44 having a predetermined width and length is formed in the upper side of the cylindrical body 40 in the axial direction, and a projection 56 of the valve body 50 is inserted into the slit 44. Thereby, the valve body 50 can move in the axial direction inside the cylindrical body 40 by the length thereof along the slit 44. In addition, cylindrical body 4
As shown in FIGS. 1 to 3, a pair of cuts 46 are formed in the lower end of the shaft 0 in the axial direction.
A claw 45 protruding from the inner wall surface of the cylindrical body 40 is provided between them (see FIGS. 4, 6, and 7).

The claw 45 is a member that supports the disk 52 of the valve body 50 from below, and can be expanded in the radial direction due to the action of the cut 46 and the elasticity of the resin constituting the cylindrical body 40. The support surface 45s of the claw 45 supporting the disk 52 of the valve body 50 is provided with an inclination so that the tip side is lower. Here, the disk 52 of the valve body 50 is
The projection 56 of the valve body 50 is disposed at the upper end of the slit 44 in a state where the valve body 50 is supported.

That is, while the disk 52 of the valve body 50 is supported by the claw 45 of the cylinder 40, the through hole 41 of the cylinder 40 is closed by the disk 52 of the valve body 50 (FIG. 4, See FIG. 6). However, when a predetermined pressing force is applied to the valve body 50 from the axial direction and the claw 45 is pressed against the disk 52, the claw 45 expands in the radial direction due to the inclination of the support surface 45s and the action of the cut 46. As a result, the disk 52 of the valve body 50
And the valve body 50 is moved downward, and the valve body 50 is held at a position where its projection 56 is hung on the lower end of the slit 44 (see FIGS. 3 and 7). That is, the disk 52 of the valve body 50
5 and is pushed out of the cylindrical body 40, so that the through hole 41 of the cylindrical body 40 is opened. That is, the valve body 50 corresponds to the opening / closing member of the present invention.

As shown in FIG. 1, the foamable base material 11 is mounted between the pair of holder plates 21 by being inserted from the side. The foamable substrate 11 is made of 110
It is molded from a synthetic resin foamable material (preferably a foamable material having metal adhesion) mixed with a foaming agent, which foams and expands at a temperature of about ° C to 190 ° C. The foamable base material 11 is a flat plate formed in the same size and shape as the holder plate 21, and has the same thickness as or slightly smaller than the distance between the pair of holder plates 21. Further, a U-shaped notch 13 is formed in the foamable base material 11 so that the foamable base material 11 does not interfere with the cylindrical body 40 when sandwiched between the holder plates 21.

Next, the handling of the hollow blocker 10 will be described. First, the hollow base block 10 is manufactured by assembling the foamable base material 11 to the holder body 20. At this time, the valve body 50
Is housed inside the cylindrical body 40, and the through hole 41 of the cylindrical body 40 is closed by the disk 52 of the valve body 50. That is, the disc 52 of the valve body 50 is supported by the claw 45 of the cylinder 40, and the projection 56 of the valve body 50 is disposed at the upper end of the slit 44 of the cylinder 40 (see FIG. 2).

When the hollow blocker 10 is manufactured, the locking clip 31 of the hollow blocker 10 is fitted into the mounting hole 7 of the inner panel 2, and the direction in which the hollow blocker 10 crosses the inner panel 2. (See FIGS. 4 and 5). In the present embodiment, an example is shown in which the hollow blocker 10 is attached to the inner panel 2 by a set of the locking clips 31 and the mounting holes 7, but a plurality of sets of the locking clips 31 and the mounting holes 7 are provided. It may be used for mounting.

When the hollow blocker 10 is attached to the inner panel 2 in this manner, the inner panel 2 and the outer panel 4 are then spot-welded to each other at the flanges 3 and 5, as shown in FIG. Thus, the front pillar 1 including the wide hollow portion 6 having a substantially hexagonal shape is configured. Next, when the vehicle body having the front pillar 1 is formed and the vehicle body is baked and painted, external heating at the time of the baked painting causes the hollow blocker 1 to be baked.
As shown in FIG. 6, the foamable base material 11 expands and expands into a foam 15.

Since the foamable base material 11 is constrained from the thickness direction by the holder plate 21 of the holder body 20, the foamable base material 11 is directed along the holder plate 21, that is, in the direction traversing the hollow portion 6. It expands and foams. Therefore, the foam 15 formed by the foaming of the foamable base material 11
Securely and satisfactorily adheres to the inner peripheral wall surface of the hollow portion 6 of the front pillar 1, and the hollow portion 6 is blocked by the foam 15 of the hollow portion blocking device 10. That is, the foamable base material 11 or the foam 15 corresponds to the foamed member of the present invention.

Here, when the vehicle is a vehicle with a sunroof, after the hollow portion 6 of the front pillar 1 is blocked by the hollow blocker 10, the front pillar 1 is connected to the drain hose from above as described above. 8 is inserted. Further, the drain hose 8 is inserted into the through hole 41 from the upper end opening of the cylindrical body 40 of the holder body 20. When the drain hose 8 is inserted into the through hole 41 of the cylindrical body 40, the tip (lower end) of the drain hose 8 contacts the upper end of the blade plate 54 of the valve body 50 as shown in FIG.

When the drain hose 8 is continuously inserted into the through hole 41 from this state, the valve body 50 is pressed downward by the drain hose 8 and the disc 52 of the valve body 50 is pressed.
Presses the claw 45 of the cylindrical body 40 downward. by this,
The claw 45 expands in the radial direction due to the inclination and cut of the support surface 45s, and the disc 52 of the valve body 50 is pushed out of the cylinder 40 to open the through hole 41 of the cylinder 40. Then, the valve body 50 is lowered to a position where the projection 56 is hung on the lower end of the slit 44 of the cylindrical body 40 and is held at that position. With this structure, the drain guided by the drain hose 8 from the drain gutter of the sunroof 9 can pass through the cylindrical body 40 of the hollow blockage device 10.

When the vehicle is a general vehicle without a sunroof, the through hole 4 of the cylindrical body 40 of the holder body 20 is provided.
Since 1 is closed by the valve body 50, there is no inconvenience that the sound insulation effect is reduced by the cylindrical body 40.

As described above, according to the hollow blocking member 10 of the present embodiment, the hollow blocking member 10 is opened or closed by opening or closing the through hole 41 of the cylindrical body 40 with the valve element 50. It can be used as a pillar of a vehicle with a vehicle or a pillar of a general vehicle. For this reason, the hollow blocking device for the vehicle with the sunroof and the hollow blocking device for the general vehicle, which have conventionally been manufactured separately, can be shared. Therefore,
The manufacture of parts and inventory management of the hollow part blocking device becomes easy. Further, the valve body 50 is pressed by the drain hose 8 housed in the hollow portion 6 and the valve body 50 is moved from the closed position to the open position of the passage. 41 and the valve element 5
There is no need to provide a separate moving means for zero.

(Second Embodiment) Hereinafter, FIGS.
2, a description will be given of a hollow part blocking device of a hollow structure according to a second embodiment of the present invention. The hollow blocker of the hollow structure according to the present embodiment is configured such that the structure of the holder body 20 and the valve body 50 of the hollow blocker 10 according to the first embodiment is changed so that the hollow blocker is vertically moved. It has a symmetrical shape. Here, FIG. 8 is an overall perspective view showing a closed state of the hollow blocker, FIG. 9A is a longitudinal sectional view showing an assembling process of the hollow blocker, and FIG. 9B is a hollow blocker. It is a perspective view showing the valve element of FIG. FIG. 10 is a longitudinal sectional view showing a state in which a hollow block is attached to a hollow structure. FIG. 11 is a longitudinal sectional view showing a state in which a hollow structure of a general vehicle is blocked by a hollow block, and FIG. 12 is a longitudinal sectional view showing a state in which a hollow structure of a vehicle with a sunroof is blocked by the hollow block. .

The holder body 70 of the hollow blocker 60 is shown in FIG.
As shown in FIG. 5, the apparatus has a pair of holder plates 71 vertically opposed to each other with the foamable base material 61 therebetween. The pair of holder plates 71 are flat plates formed to have a shape substantially equal to the cross section orthogonal to the longitudinal direction of the hollow portion 6. Is formed in such a size that the paint can pass between the peripheral edge of the hollow portion and the inner peripheral wall surface of the hollow portion 6. Each holder plate 71 is manufactured individually, and is connected by an engaging member (not shown) when sandwiching the foamable base material 61.

As shown in FIG. 9A, a pedestal portion 32 of the locking clip 31 is attached to a peripheral portion of one (upper) holder plate 71 at a predetermined position. In addition,
The locking clip 31 has the same structure as the locking clip 31 used in the hollow part blocking device 10 according to the first embodiment. At the center of each holder plate 71, a substantially cylindrical convex portion 72 protruding toward the side where the foamable base material 61 is sandwiched is formed. The convex portion 72 is a divided piece 81 of a cylindrical body 80 described later.
And a member that blocks the foam 65 of the foamable base material 61 from entering the inside of the cylinder 80, and has an inner diameter set to a value equal to the outer shape of the cylinder 80.

As shown in FIG. 8, in the convex portion 72, vertical grooves 72m are formed at four positions in the circumferential direction of the inner peripheral surface 72e at substantially equal intervals (approximately 90 ° intervals). The height of the convex portions 72 is set to be substantially equal to the thickness dimension of the foamable base material 61 in a state where the convex portions 72 of the respective holder plates 71 are vertically stacked (in series). . Here, the protrusion 7
The shape of each holder plate 71 provided with 2 is formed to be the same shape except for the portion of the retaining clip 31.

The projecting portion 72 has divided pieces 8 constituting the cylindrical body 80.
One end is stored and fixed. Each of the divided pieces 81 is a member that constitutes the cylinder 80 in a pair.
Are manufactured in the same shape. The split piece 81 is shown in FIG.
As shown in (A), the end face 81t of the divided piece 81
Are housed in the convex portion 72 so as to be located at the same position in the axial direction as the distal end surface 72t of the convex portion 72. For this reason, the end surfaces 81t of the respective divided pieces 81 are also aligned in a state where the distal end surfaces 72t of the convex portions 72 of the respective holder plates 71 are aligned, and
A cylindrical body 80 penetrating the holder body 70 is formed. Also,
The length of the divided pieces 81 is set to a length protruding from the surface of each holder plate 71 by a predetermined length. In addition,
The holder plate 71, the convex portions 72, the divided pieces 81, and the like are integrally formed by injecting a resin into a mold.

At the end of the split piece 81, the vertical groove 7
Inner claw 82 expandable in the radial direction at a portion facing 2 m
Are formed. The inner claw 82 is a claw for holding a valve body 90 to be described later at a central portion of the cylindrical body 80.
Is provided with a claw body 82r protruding from the inner wall surface. The claw main body 82r is inclined such that the outer surface enters the axially inner side of the divided piece 81 on the distal end side, and the inclined outer surface serves as a pressing surface 82k of the valve body 90. The split piece 81 is formed with a pair of cuts (not shown) extending in the axial direction on both sides of the claw body 82r. This cut and presser surface 8
Due to the inclination of 2k and the elasticity of the resin constituting the split piece 81, the inner claw 82 expands in the radial direction when it receives an axial pressing force from the valve body 90.

The split piece 81 has an outer claw 84 formed at an end protruding from the holder plate 71. Outer nail 8
Reference numeral 4 denotes a claw for holding a valve body 90 pushed out from a central portion of the cylindrical body 80 by a drain hose 8 as described later.
As shown in FIG. 8 and the like, the divided piece 81 is formed at four locations in the circumferential direction. The outer claw 84 includes an extension 84x extending in the axial direction of the divided piece 81, and a claw body 84r protruding radially inward of the divided piece 81 at the tip of the extension 84x. The nail body 84r is the nail body 8 of the inner nail 82.
2r, and the claw main body 84r
Becomes the support surface 84k of the valve body 90. Further, a cutout portion 86 is formed in the divided piece 81 between the outer claws 84.

The valve body 90 is a member for opening and closing the cylinder 80, and as shown in FIG.
A disk 92 having an outer shape substantially equal to the inner diameter of 0 (divided piece 81) is formed. On both sides of the disk 92, blades 94 extending in the axial direction of the disk are formed symmetrically with respect to the disk surface. The blade plate 94 is a portion that coaxially connects the drain hose 8 housed inside the cylindrical body 80 and the valve body 90 (see FIG. 12), and an insertion portion 94s housed in the drain hose 8 and a drain 94 A receiving portion 94u for receiving the tip of the hose 8; In addition, the insertion portion 94s
Is tapered so as not to interfere with the tip of the drain hose 8.

The foamable base material 61 sandwiched between the pair of holder plates 71 is a flat plate formed to have substantially the same size and shape as the holder plates 71. As described above, the protrusions of the respective holder plates 71 are formed. It has a wall thickness substantially equal to the thickness of the portions 72 stacked in series. In addition, the convex portion 7 of the holder plate 71
9 through which a through hole 61k is formed.
(See (A)), and a through hole (not shown) is formed around the through hole 61k, through which an engaging member connecting the holder plates 71 passes. The material of the foamable base material 61 is the same as the material of the foamable base material 11 according to the first embodiment.

Next, the assembling and handling of the hollow part blocking device 60 will be described. First, as shown in FIG. 9, one of the holder plates 71 with the convex portions 72 facing upwards.
The foamable base material 61 is placed on the divided piece 81, and the protrusion 72 is inserted into the through hole 61 k of the foamable base material 61. Next, the disk 92 of the valve element 90 is
It is placed on the second holding surface 82k. In this state, the other holder plate 71 and the split piece 81 are
And the projection 72 is formed in the through hole 6 of the foamable base material 61.
Inserted at 1k.

As a result, the front end surface 72t of the convex portion 72 of each holder plate 71 is aligned with the end surface 81t of each divided piece 81, and the pressing surface 82k of the inner claw 82 of each divided piece 81 is adjusted. The disc 92 of the valve body 90 is sandwiched. Next, the two holder plates 71 are connected by the engaging member, and the assembling of the hollow part blocking member 60 is completed. When the hollow blocker 60 is manufactured in this manner, the locking clip 31 of the hollow blocker 60 is fitted into the mounting hole 7 of the inner panel 2 (see FIG. 10).

Next, when the inner panel 2 and the outer panel 4 are spot-welded to each other at the flanges 3 and 5, the front pillar 1 having the hollow portion 6 is formed.
The vehicle body having the front pillar 1 is baked and painted, and the heat is applied to the foamable base material 6 of the hollow blocker 60.
As shown in FIG. 11, the foam 1 expands and its hollow portion 6 is blocked by the foam 65. In addition, since the front end surface 72t of the convex portion 72 of each holder plate 71 is aligned, the foam 65 does not enter the vertical groove 72m of the inner peripheral surface 72e of the convex portion 72. For this reason, the foam 15 does not hinder the expansion of the inner claw 82 of the divided piece 81.

Here, when the vehicle is a vehicle with a sunroof, after the hollow portion 6 of the front pillar 1 is closed by the hollow portion blocking member 60, the drain pillar is connected to the front pillar 1 from above as described above. 8 is inserted. Then, the drain hose 8 is inserted into the passage from the upper end opening of the cylindrical body 80 (divided piece 81) of the holder body 70. Cylinder 80
12, the distal end (lower end) of the drain hose 8 is put on the insertion portion 94s of the blade plate 94 of the valve body 90, and the drain hose 8 is The tip comes into contact with the receiving portion 94u of the blade plate 94.

When the drain hose 8 is continuously inserted into the passage from this state, the valve body 90 is pressed downward by the drain hose 8, and the disc 92 of the valve body 90 presses the pressing surface of the inner claw 82 of the divided piece 81. Press 82k downward.
As a result, the inner claw 82 expands in the radial direction due to the inclination and cut of the pressing surface 82k, and the valve element 90 passes through the inner claw 82 to a position where the disk 92 is hooked on the outer claw 84. Descend. The disc 92 of the valve body 90 is
The passage of the cylindrical body 80 communicates with the hollow portion 6 through the notch 86. That is, the passage of the cylindrical body 80 is opened (valve open state). For this reason, the drain guided by the drain hose 8 from the drain gutter of the sunroof 9 can pass through the cylinder 80 of the hollow blocker 60.

When the vehicle is a general vehicle without a sunroof, the passage of the cylinder 80 of the holder body 70 is closed by the valve body 90, and the sound insulation effect is reduced by the cylinder 80. No inconvenience occurs.

As described above, according to the hollow blocker 60 according to the present embodiment, similarly to the hollow blocker 10 according to the first embodiment, a hollow blocker for a vehicle with a sunroof and a general vehicle are provided. Can be used in common with the hollow blocker, and the production and inventory management of the hollow blocker becomes easy. Further, the valve body 90 is pressed by the drain hose 8 housed in the hollow portion 6 and the valve body 90 can be moved from the closed position to the open position of the passage, so that the drain hose 8 can be securely connected to the cylindrical body 80. Of the valve 9
There is no need to provide a separate moving means for zero. Further, the valve element 9
Since the divided piece 81 of the 0 and the cylinder 80 is formed in a shape symmetrical with respect to an imaginary center line perpendicular to the axis thereof, the direction in which the valve body 90 is pressed by the drain hose 8 is not limited. Further, since each of the divided pieces can be formed in the same shape, component production and inventory management become easy.

In the first and second embodiments, an example in which the hollow portion 6 is formed to have a substantially square cross section has been described, but the cross sectional shape of the hollow portion 6 is not limited to a substantially square shape. Also,
Although the case where the hollow blockers 10 and 60 are used for the front pillar 1 of the vehicle body has been described as an example, the hollow blockers 10 and 60 may be used for a center pillar, a roof side panel, a rocker panel, and the like, in addition to the front pillar. In addition, as the insertion member inserted into the hollow portion 6, there are various pipes, a wire harness, and the like, in addition to the drain hose 8.

Other than the vehicle body, for example, a building,
The present invention can also be applied to a hollow structure constituting a building such as a ship. Further, in the first and second embodiments, an example is shown in which the foamable base material 11 is foamed by heating from the outside to form a foam 15 and the hollow portion 6 is blocked by the foam 15. A method may be used in which the already-formed foam member is packed in a hollow structure to block the hollow portion. Further, in the first and second embodiments, the example in which the through hole is formed using the cylindrical body is shown. However, the through hole may be directly formed in the foam member, and the through hole may be opened and closed by the opening and closing member. good. Alternatively, a structure may be employed in which the opening / closing member is packed in the through hole to close the through hole, and the opening / closing member is removed to open the through hole.

[0046]

According to the present invention, the through-hole of the hollow block can be opened or closed by the opening / closing member, so that the hollow block can be opened in a hollow structure requiring a drain countermeasure or a hollow not requiring a drain countermeasure. Can be used for both structures. That is,
Since the hollow part blocking device can be shared, the production and inventory management of the hollow part blocking device become easy.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a hollow block member in a hollow structure according to a first embodiment of the present invention.

FIG. 2 is an overall perspective view showing a closed state of the hollow block member according to the first embodiment of the present invention.

FIG. 3 is a perspective view (FIG. A) showing an open state of a hollow part blocking device in the hollow structure according to the first embodiment of the present invention;
And a perspective view (FIG. B) of the valve body.

FIG. 4 is a longitudinal sectional view showing a state in which a hollow block member in the hollow structure according to the first embodiment of the present invention is attached to the hollow portion.

FIG. 5 is a plan view showing a state in which a hollow block member in the hollow structure according to the first embodiment of the present invention is attached to the hollow portion.

FIG. 6 is a longitudinal sectional view showing a state in which a hollow structure of a general vehicle is blocked by a hollow blocker in the hollow structure according to the first embodiment of the present invention.

FIG. 7 is a longitudinal sectional view illustrating a state in which the hollow structure of the vehicle with the sunroof is blocked by the hollow blocker in the hollow structure according to the first embodiment of the present invention.

FIG. 8 is a perspective view of a hollow block member in a hollow structure according to a second embodiment of the present invention.

FIG. 9 is a longitudinal sectional view (A) showing an assembling process of a hollow part blocking device in a hollow structure according to a second embodiment of the present invention.
FIG. 2) and a perspective view (FIG. B) of the valve element.

FIG. 10 is a longitudinal sectional view showing a state in which a hollow part blocking device in a hollow structure according to a second embodiment of the present invention is attached to a hollow part.

FIG. 11 is a longitudinal sectional view showing a state where a hollow structure of a general vehicle is blocked by a hollow blocker in a hollow structure according to a second embodiment of the present invention.

FIG. 12 is a longitudinal sectional view illustrating a state in which a hollow structure of a vehicle with a sunroof is blocked by a hollow blocker in a hollow structure according to a second embodiment of the present invention.

FIG. 13 is a perspective view (FIG. 13A) of a hollow blocker in a conventional hollow structure used in a vehicle with a sunroof, and a perspective view of a hollow blocker in a conventional hollow structure used in a general vehicle (FIG. 13). B).

FIG. 14 is a perspective view schematically illustrating a body of a vehicle with a sunroof.

FIG. 15 is a longitudinal sectional view (FIG. A) of a molding die for molding a holder body of a hollow part blocking device in a conventional hollow structure used in a vehicle with a sunroof, and a longitudinal sectional view of the holder body (B).
Figure).

FIG. 16 is a longitudinal sectional view (FIG. A) of a molding die for molding a holder body of a hollow part blocking device in a conventional hollow structure used in a general vehicle, and a longitudinal sectional view (FIG. B) of the holder body. .

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hollow structure 2 Inner panel 4 Outer panel 6 Hollow part 8 Drain hose (piping) 11 Foamable base material (foam member) 15 Foam (foam member) 20 Holder body 40 Cylindrical body 41 Through hole 50 Valve body (opening / closing member) ) 80 cylindrical body 81 divided piece 90 valve body (opening / closing member)

Claims (4)

[Claims] 1. A hollow part blocking member for a hollow structure in which a hollow part of a hollow structure is blocked by a foam member, a through hole penetrating the foam member to communicate one of the hollow parts with the other, and a closed position. And an opening / closing member that moves between the opening position and the opening position to open and close the through hole. 2. The hollow structural member according to claim 1, wherein the through-hole is formed by a tubular body penetrating a foamed member, and the opening / closing member is provided inside the tubular body. A hollow part blocking device for a hollow structure, which is movable. 3. The hollow part blocking device for a hollow structure according to claim 1, wherein the open / close member is pressed by a pipe housed in the hollow portion, and the open / close member is moved between a closed position and an open position. A hollow blocker for a hollow structure, which is moved. 4. The hollow part blocking device for a hollow structure according to claim 2, wherein the opening / closing member and the cylindrical body are formed in a shape symmetrical with respect to a virtual center line perpendicular to an axis thereof. A hollow part blocking device for a hollow structure, characterized in that: