JP2001122051A - Hollow chamber shut-off implement for vehicle body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hollow chamber shut-off implement for a vehicle body facilitating the manufacture and inventory control of a holder body by making the holder body usable in common. SOLUTION: This hollow chamber shut-off implement for a vehicle body is provided with a holder body 20 fitted to a hollow chamber 6 of the vehicle body 1, and a foam base material 11 assembled to the holder body 20 and foamed by external heating to become a foam body 15 to thereby shut off the hollow chamber 6. The holder body 20 is provided with a cylindrical body 40 with a through hole 41 through which an insert member such as a drain hose 8 can be inserted, and an opening of the cylindrical body 40 is integrally provided with a cover body 50 closably by an opening/closing connecting part 42. The cover body 50 is held in the closed state by detachable closing means 43, 53. When the insert member is inserted in the through hole 41 of the cylindrical body 40, the engagement of the closing means 43, 53 comes off to open the cover body 50.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hollow body blocker for a vehicle body, such as a front pillar, a center pillar, a roof side panel, a rocker panel, etc., each of which has a hollow box-shaped closed cross-section formed by a plurality of panels. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle body hollow chamber shutoff device for shutting off a hollow chamber of a hollow panel of a vehicle body in order to achieve vibration suppression and soundproofing of the hollow panel of the vehicle body.

[0002]

2. Description of the Related Art Conventionally, for example, in a vehicle with a sunroof, a drain hose for draining rainwater guided to a predetermined position on a peripheral portion of the sunroof is inserted into a hollow chamber of a hollow panel (mainly a front pillar). There is. In this case, if the hollow chamber of the hollow panel is blocked by the hollow chamber blocking device, the drain hose cannot be inserted. For this reason, the holder body of the hollow chamber blocking device is provided with a cylindrical body having both open ends through which a drain hose can be inserted. Further, such a hollow chamber blocking device is disclosed in, for example, Japanese Patent Application Laid-Open No. 10-45.
No. 031.

[0003]

By the way, a hollow chamber shut-off device in which a cylindrical body having both ends opened so that a drain hose can be inserted is provided in a holder body is mounted in a hollow chamber of a hollow panel of a general vehicle without a sunroof. Then, there occurs a problem that the blocking effect is reduced by the cylindrical body. For this reason, when mounting the hollow chamber blocker corresponding to a vehicle with a sunroof in a hollow chamber of a hollow panel of a general vehicle without a sunroof, one end opening portion of the cylindrical body of the holder body is closed with a lid in advance. It had to be a hassle. When the holder body is injection-molded, as shown in FIGS. 14A and 14B, a piece 102 is arranged in a cavity 101 of the molding die 100, and both ends are opened simultaneously with the molding of the holder body 120. 15A or as shown in FIGS. 15A and 15B, the synthetic resin material is injected into the cavity 101 of the molding die 100 without using the piece 102, and the holder body 220 is formed. Is formed, and at the same time as the molding, the cylindrical body 240 whose one end is closed by the lid 241 is formed.
It is possible to form However, as shown in FIG. 14B, a holder body 120 having a cylindrical body 140 having both ends opened, and as shown in FIG.
Holder body 22 having cylindrical body 240 closed by 41
0 are individually manufactured, and these holder bodies 120, 2
Managing the inventory of 20 is cumbersome.

SUMMARY OF THE INVENTION [0004] In view of the above-mentioned conventional problems, an object of the present invention is to make a holder body common and usable, thereby facilitating the manufacture and inventory management of the holder body and the like. It is to provide.

[0005]

According to a first aspect of the present invention, there is provided a vehicle body body hollow chamber blocking device having a structure as set forth in claim 1. Therefore, after the hollow chamber blocking device is attached to the hollow chamber of the hollow panel of the vehicle body, the foamable base material is foamed by heating from the outside and becomes a foam, whereby the hollow chamber is blocked. Here, when the vehicle having the hollow panel is, for example, a vehicle with a sunroof, a drain hose as an insertion member is inserted from one side of the hollow chamber of the hollow panel into the insertion hole of the cylindrical body of the holder body. Then, since the closing means is disengaged and the lid is opened by inserting the drain hose, the drain hose can be easily and reliably inserted to a required position. When the vehicle having the hollow panel is, for example, a general vehicle without a sunroof, the lid is held in a closed state by closing means at the lower end opening of the insertion hole of the cylindrical body of the holder body. For this reason, it is possible to prevent a problem that the sound insulating effect is reduced by the insertion hole of the cylindrical body. As described above, the holder body can be used in common regardless of a vehicle with a sunroof or a general vehicle without a sunroof.

The gist of the second aspect of the present invention is a hollow-body blocking device for a vehicle body. Therefore, the closing means can be easily constituted by the closing piece and the closing hole which are provided between the cylindrical body and the lid body and are removably engaged.

The gist of the third aspect of the present invention is a hollow chamber cutoff for a vehicle body. Therefore, the closing means can be easily constituted by the closing pin and the closing hole which are provided on the cylinder body and the lid body and are removably engaged.

[0008]

(Embodiment 1) Embodiment 1 of the present invention will be described with reference to FIGS. In FIG. 5, which is a simplified perspective view of a vehicle with a sunroof, FIG. 6, in which a front pillar of the vehicle is shown in a longitudinal section, and FIG. 7, which is a cross section, a hollow panel (for example, a front pillar) 1 of a vehicle body is shown. The inner panel 2 and the outer panel 4 have flanges 3, 5
Is spot-welded at a point, thereby forming a hollow box-shaped closed cross section. A drain hose 8 is provided in the hollow chamber 6 of the hollow panel 1. This drain hose 8
Is connected to a drain (not shown) for drainage provided near the periphery of the sunroof 9. In addition,
The lower end of the drain hose 8 extends to the vicinity of the wheel house. At a predetermined position of the inner panel 2, a non-circular mounting hole 7 such as an ellipse, an ellipse, or a square through which the hollow chamber blocking device 10 is fitted by being stopped by the mounting clip 31 of the holder body 20. Has been established.

A hollow chamber shutoff 10 for shutting off the hollow chamber 6 of the hollow panel 1 comprises a foam base 11 and a holder 2.
0. The holder body 20 is integrally formed by injection molding of a heat-resistant synthetic resin (thermoplastic synthetic resin), and has a pair of holder plates 21 vertically opposed to each other with the foamable base material 11 therebetween. These pair of holder plates 21 are used to mount the pedestal portion 3 of a mounting clip 31 described later.
2 and are integrally formed in a state where they are connected to each other by the cylindrical body 40.

The pair of holder plates 21 have a flat plate shape in a direction substantially perpendicular to the longitudinal direction of the hollow chamber 6 (a direction in which the hollow chamber 6 is shut off).
An appropriate gap through which the paint can pass is set between the peripheral edge portion 1 and the inner peripheral wall surface of the hollow chamber 6. Further, a predetermined number of mounting portions for elastically engaging with the mounting holes 7 of the inner panel 2 and mounting the hollow chamber blocking member 10 in the hollow chamber 6 are provided at predetermined positions on the peripheral edge portions of the pair of holder plates 21. Clip 31
Are integrally formed. The mounting clip 31 includes a pedestal portion 32 provided over a part of the peripheral edge portions of the pair of holder plates 21, a leg portion 33 protruding from the lower surface of the pedestal portion 32 and extending to the mounting hole 7, It has a pair of elastic locking pieces 34 that are folded back from both ends of the distal end of the portion 33 and elastically engage with the mounting holes 7.

As shown in FIGS. 1 and 6, in the vicinity of substantially the center of a pair of holder plates 21, the holder plates 21 penetrate and protrude from both upper and lower surfaces of the holder plates 21 by a predetermined length. A substantially cylindrical tubular body 40 is integrally formed. The cylindrical body 40 has an insertion hole 41 at both ends opening through which the drain hose 8 can be inserted at the center. Also, of the upper and lower ends of the cylindrical body 40,
A lid 50 for opening and closing the lower end opening is integrally formed at a lower end opening opposite to the side into which the drain hose 8 is inserted via a belt-shaped opening / closing connecting piece 42. The opening / closing connecting piece 42 is elastically deformed in a curved shape when the lid 50 is in a closed state, and urges the lid 50 in an opening direction by a resilient force based on the elastic deformation.

The lid 50 is provided with a cover plate 51 for closing the lower end opening of the cylindrical body 40, and is protruded substantially annularly along the peripheral edge of the cover plate 51, and is inserted around the lower end of the cylindrical body 40. A peripheral wall portion 52 which is removably inserted is integrally provided. A closing means for holding the lid 50 in a closed state against the elasticity of the opening / closing connecting piece 42 is provided between the cylindrical body 40 and the lid 50.

In the first embodiment, as shown in FIGS. 2 and 3, the closing means includes a closing piece 53 and a closing hole 43. The closing hole 43 penetrates the outer periphery near the lower end of the cylindrical body 40, and the closing piece 53 protrudes integrally from a predetermined position of the peripheral wall 52 of the lid 50. A hook-shaped engaging claw 54 is formed at the distal end of the closing piece 53 so as to be removably engaged with the closing hole 43 to hold the lid 50 in a closed state. Further, as shown in FIGS. 4A and 4B, when the drain hose 8 is inserted into the insertion hole 41 of the cylindrical body 40 above the engaging claw 54, the distal end of the drain hose 8 is formed. An inclined surface 55 is formed to move the engagement claw 54 in the direction of coming out of the closing hole 43 by being pressed by the engagement claw 54. The lower end of the engaging claw 54 and the lower opening of the closing hole 43 are pressed by the tip of the drain hose 8 so that the engaging claw 54 is closed.
So that the lid 50 is opened in a state where it is slightly out of
Slant guide surfaces 56 and 46 are respectively formed.

[0014] Between the pair of holder plates 21,
The foamable base material 11 that is foamed and cured at a temperature of about 110 ° C. to 190 ° C. and becomes the closed-cell foam 15 is inserted and held in an unfoamed state. The unfoamed foamable base material 11 is made of a synthetic resin foamable material (preferably a foamable material having metal adhesiveness) mixed with a foaming agent, and is formed in substantially the same size and shape as the holder plate 21. In addition, it is formed in a flat plate shape having the same or slightly smaller wall thickness as the distance between the pair of holder plates 21 facing each other. At a predetermined position of the foamable base material 11, a cut portion 13 is formed to be inserted into the outer peripheral surface of the cylindrical body 40 of the holder body 20. Then, the foamable base material 11 is inserted between the pair of holder plates 21 and assembled, so that the hollow chamber blocking device 10 is configured.

[0015] The hollow chamber blocking device 10 according to the first embodiment.
Is configured as described above. Therefore, before the inner panel 2 and the outer panel 4 constituting the hollow panel 1 of the vehicle body are spot-welded to each other at the flanges 3 and 5 thereof, the hollow chamber shut-off device 10 is fitted to the mounting holes 7 of the inner panel 2. It is attached by the attachment clip 31 of the body 20 (see FIGS. 6 and 7). At this time, in either a vehicle with a sunroof or a general vehicle without a sunroof, the engagement between the engaging claw 54 of the closing piece 53 and the closing hole 43 is formed at the lower end opening of the cylindrical body 40 of the holder body 20. The lid 50 is kept closed by the resultant force.

After the hollow chamber blocking device 10 is mounted on the inner panel 2 as described above, the inner panel 2 and the outer panel 4 are spot-welded at their mutual flanges 3 and 5 to form a hollow box-shaped closed cross section. Hollow panel 1
Is configured. Thereafter, the foamable base material 11 is foamed as shown in FIG. 8 by external heating, for example, external heating at the time of baking coating of the vehicle body having the hollow panel 1,
It becomes a foam 15. When the foamable base material 11 is foamed, the foaming of the foamable base material 11 is restricted by the pair of holder plates 21 with respect to the longitudinal direction of the hollow chamber 6, and is a direction orthogonal to the longitudinal direction of the hollow chamber 6. On the other hand, the foaming of the foamable base material 11 is effectively promoted to form the foam 15. Then, the peripheral portion of the foam 15 adheres to the inner peripheral wall surface of the hollow chamber 6 without any gap, thereby shutting off the hollow chamber 6.

Here, when the vehicle having the hollow panel 1 is a vehicle with a sunroof, as described above, the foam 15 is formed by foaming the foamable base material 11 of the hollow chamber closing device 10.
After the hollow chamber 6 is shut off by, as shown in FIG.
A drain hose 8 is inserted from above the hollow chamber 6 of the hollow panel 1. Then, the drain hose 8 is inserted into the insertion hole 41 from the upper end opening of the cylindrical body 40 of the holder body 20. FIG.
As shown in (B), when the drain hose 8 is inserted into the insertion hole 41 of the cylindrical body 40, first, the distal end (lower end) of the drain hose 8 is inclined upward of the engaging claw 54 of the closing piece 53. It contacts the surface 55. By the subsequent insertion of the drain hose 8, the engaging claw 54 of the closing piece 53 is pressed by the lower end of the drain hose 8 and moves in a direction to come out of the closing hole 43 of the cylinder 40.

Next, the lower end of the drain hose 8 is
4 and comes into contact with the upper surface of the lid 50. By the subsequent insertion of the drain hose 8, the upper surface of the lid 50 is pressed against the lower end of the drain hose 8. Then, the closing piece 53
By the action of the lower guide surface 56 of the engaging claw 54 and the guide surface 46 of the closing hole 43, the engaging claw 54 comes out of the closing hole 43 and comes off, and the lid 50 is opened (see FIG. 9). Therefore, the drain hose 8 is inserted through the insertion hole 41 of the cylindrical body 40 to a required position. As described above, by inserting the drain hose 8, the engaging claw 5 of the closing piece 53 is inserted.
Since the engagement between the cylinder 4 and the closing hole 43 of the cylinder 40 is released and the lid 50 is opened, the drain hose 8 can be easily and securely inserted to a required position. Further, in the first embodiment, when the upper surface of the lid 50 is pressed by the lower end of the drain hose 8 and the lid 50 is opened, the resilient force based on the curved elastic deformation of the opening / closing connecting piece 42 also increases. In addition, the lid 50 is easily and reliably opened.

When the vehicle having the hollow panel 1 is a general vehicle having no sunroof, the lower end opening of the insertion hole 41 of the cylindrical body 40 of the holder body 20 is closed by the lid 50. Therefore, it is possible to prevent a problem that the sound insulation effect is reduced by the insertion hole 41 of the cylindrical body 40. As described above, the holder body 20 can be used in common regardless of a vehicle with a sunroof or a general vehicle without a sunroof, and the manufacture and inventory management of the holder body 20 are facilitated, and the hollow chamber shut-off device is provided. The cost reduction of 10 is also very effective.

(Embodiment 2) Next, Embodiment 2 of the present invention will be described with reference to FIGS. 10 to 13. In Embodiment 2, substantially the center of a pair of holder plates 21 of a holder body 20 will be described. The structure of the closing means for holding the lid 50 integrally formed by the open / close connecting piece 42 in the closed state with respect to the lower end opening of the cylindrical body 40 provided in the vicinity of the portion is changed. That is, of the upper and lower ends of the cylindrical body 40, the lower end opening opposite to the side where the drain hose 8 is inserted is provided with a belt-like opening / closing connection piece 42 for opening and closing the lower end opening. They are formed integrally with each other. At the end of the opening / closing connecting piece 42, a lid plate 51
And a peripheral wall portion 52 that is substantially annularly protruded along a peripheral edge portion on the upper surface side of the lid plate portion 51 and is removably fitted to the outer periphery of the lower end portion of the cylindrical body 40.

The closing means for holding the lid 50 in a closed state with respect to the lower end opening of the cylindrical body 40 includes a closing pin 73 and a closing hole 63. The closing pin 73 is
The lower end face of the cover 50 protrudes from the portion opposite to the opening / closing connection piece 42, and the closing hole 63 extends through the peripheral portion of the lid plate portion 51 of the lid 50 opposite to the opening / closing connection piece 42. Then, the opening / closing connecting piece 42 is elastically twisted by approximately 180 degrees from its base to the tip to elastically deform in a curved shape, and the closing hole 63 of the lid 50 is inserted into the closing pin 73 of the cylinder 40. Thus, the closing pin 73 and the closing hole 63 are engaged with each other. That is, the closing hole 63 is pressed against the outer peripheral surface of the closing pin 73 by the elastic force based on the torsion of the opening / closing connecting piece 42, and the cylindrical body is formed by the engaging force applied between the closing pin 73 and the closing hole 63. The lid 50 is held in a closed state with respect to the opening at the lower end of 40. Other configurations of the second embodiment are as follows.
Since the configuration is substantially the same as that of the first embodiment, the same components are denoted by the same reference numerals and description thereof will be omitted.

Therefore, in the second embodiment, when the vehicle having the hollow panel 1 is a vehicle with a sunroof, the hollow chamber 6 is blocked by the foam 15 formed by foaming the foamable base material 11 of the hollow chamber blocking device 10. Figure 1
As shown in FIG. 1, the drain hose 8 is inserted into the insertion hole 41 of the cylindrical body 40 of the holder body 20 from above the hollow chamber 6 of the hollow panel 1. When the drain hose 8 is inserted into the insertion hole 41 of the cylindrical body 40, first, the distal end (lower end) of the drain hose 8 contacts the upper surface of the lid 50. By the subsequent insertion of the drain hose 8, the upper surface of the lid 50 is pressed against the lower end of the drain hose 8. Then, the closing hole 63 of the lid 50 comes out of the closing pin 73 and comes off, and the lid 50 is opened. For this reason, the drain hose 8 is inserted through the insertion hole 41 of the cylindrical body 40 to a required position. As described above, also in the second embodiment, by inserting the drain hose 8, the closing hole 63 of the lid 50 comes out of the closing pin 73 and comes off, and the lid 50 is opened.
The drain hose 8 can be easily and securely inserted to a required position. Further, in the second embodiment, when the closing hole 63 of the lid 50 comes out from the closing pin 73 and comes off, and the lid 50 is opened, the elastic force based on the curved elastic deformation is applied to the opening / closing connecting piece 42. In addition, the lid 50 is easily and reliably opened.

When the vehicle having the hollow panel 1 is a general vehicle without a sunroof, a closing pin 73 and a closing hole 63 are provided at the lower end opening of the insertion hole 41 of the cylindrical body 40 of the holder body 20. The lid 50 is held in a closed state by the provided closing means. For this reason, the insertion hole 41 of the cylindrical body 40
This can prevent a problem that the sound insulation effect is reduced. Therefore, also in the second embodiment, the holder body 20 can be used in common regardless of a vehicle with a sunroof or a general vehicle without a sunroof, and the manufacture and inventory management of the holder body 20 can be easily performed. Also, the effect of reducing the cost of the hollow chamber blocking device 10 is great.

In the second embodiment, the closing pin 73 is formed by the resilient force based on the twist of the opening / closing connecting piece 42.
The closing hole 63 is pressed against the outer peripheral surface of the cylindrical body 40, whereby the lid 50 is held in a closed state with respect to the lower end opening of the cylindrical body 40 based on the engaging force applied between the closing pin 73 and the closing hole 63. The closing pin 73 and the closing hole 63
Is pressed in so as to come out with a predetermined removal load, and the frictional force between the closing pin 73 and the closing hole 63 causes the lid 5 to be removed.
It is also possible to keep 0 closed. Further, in the first and second embodiments, the case where the hollow panel 1 of the vehicle body is a front pillar is exemplified. However, in addition to the front pillar, there are a center pillar, a roof side panel, a rocker panel, and the like. In addition to the drain hose 8, examples of the insertion member inserted into the hollow panel 1 include various pipes, tubes for wiring, pipes, wire harnesses, and the like.

[0025]

As described above, according to the present invention,
Regardless of a vehicle with a sunroof or a general vehicle without a sunroof, the holder body of the hollow chamber blocking device can be used in common. For this reason, the manufacture of the holder body and inventory management become easy, and the effect of reducing the cost of the hollow chamber blocking device is great.

[Brief description of the drawings]

FIG. 1 shows Embodiment 1 of the present invention, and is a perspective view showing a holder body and a foamable base material separately.

FIG. 2 is a perspective view showing a state in which a lid is closed by a closing means in a hollow chamber blocking device in which a foamable base material is assembled to a holder body, similarly from below.

FIG. 3 is a perspective view showing a state where the lid of the hollow chamber blocking device is opened similarly from below.

FIG. 4 is an explanatory view showing a state in which a closing hole and a closing piece between the cylindrical body and the lid of the holder body are engaged with each other, and a state in which the closing piece is released.

FIG. 5 is an explanatory view showing a relationship between a drain hose and a hollow chamber shutoff of the vehicle with a sunroof.

FIG. 6 is a longitudinal sectional view showing a state in which a hollow chamber blocking device is attached to a hollow chamber of the hollow panel.

FIG. 7 is a cross-sectional view showing a state in which a hollow chamber blocking device is attached to the hollow chamber of the hollow panel.

FIG. 8 is a longitudinal sectional view showing a state in which a foamable base material is foamed to form a foam, and a hollow chamber is closed.

FIG. 9 is a vertical cross-sectional view showing a state in which a drain hose is inserted into a cylindrical body of the hollow chamber blocking device.

FIG. 10 is a longitudinal sectional view showing a state in which a lid is closed by a closing means in the hollow chamber blocking device according to the second embodiment of the present invention.

FIG. 11 is a longitudinal sectional view showing a state in which the lid is opened.

FIG. 12 is a perspective view showing a state in which the lid is closed by the closing means from below.

FIG. 13 is a perspective view showing a state in which the lid is opened from below.

FIG. 14 is an explanatory view showing a conventional mold for molding a holder having a cylindrical body having both ends opened, and a holder formed by the mold.

FIG. 15 is an explanatory view showing a conventional molding die for molding a holder having a cylindrical body whose one end is closed by a lid, and a holder molded by the molding die.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hollow panel (vehicle body) 10 Hollow chamber blocker 11 Foamable base material 15 Foam 20 Holder body 21 Holder plate 31 Mounting clip 40 Cylindrical body 41 Insertion hole 42 Opening / closing connection piece 43 Closing hole (closing means) 50 Lid 53 Closing piece (closing means) 54 Engagement claw

Claims (3)

[Claims] 1. A holder body attached to a hollow chamber of a vehicle body, and a foamable base material assembled to the holder body and foamed by external heating to form a foam to block the hollow chamber. A hollow body blocking member of a vehicle body, wherein the holder body is provided with a cylindrical body having an insertion hole through which an insertion member such as a drain hose can be inserted, and an opening of the cylindrical body has a lid body. Is provided so as to be openable and closable by an open / close connecting portion, and the lid body is held in a closed state by detachable closing means, and the insertion member is inserted into an insertion hole of the cylindrical body. Sometimes, the closing means is disengaged from the closing means and the lid is opened to open the hollow chamber blocking device of the vehicle body. 2. The closing member for a hollow body of a vehicle body according to claim 1, wherein the closing means is provided between the cylindrical body and the lid body, and the closing piece and the closing hole are detachably engaged with each other. A closing member and a closing hole that are disengaged by the insertion operation of the insertion member when the interior member is inserted into the cylindrical body. 3. The closing member for a hollow body of a vehicle body according to claim 1, wherein the closing means includes a closing pin and a closing hole which are provided between the cylinder body and the lid body and are removably engaged. With
When the interior member is inserted into the cylindrical body, the closing pin and the closing hole are disengaged from each other by the insertion operation of the insertion member, and the hollow chamber shut-off device of the vehicle body.