JP2000255272A - Vehicle weatherstrip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the operating force required to remove a pane for escape in an emergency, while assuring a flange retaining force, a pane retaining force and air tightness under normal conditions. SOLUTION: The root of a flange inner lip 12 is thinned so that the flange inner lip 12 deforms easily when an anchor bead 15 is not fitted in an anchor groove 14. When the flange inner lip 12 is deformed to a maximum, it completely fills the anchor groove 14. The amount of interference (b) between the flange inner lip 12 and a flange portion 4 is thereby minimized to allow a window pane 6 to drop off with a small pushing force.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a weather strip for a vehicle used when a window glass or the like of a vehicle is mounted on a window glass opening of a vehicle body panel, and more particularly to a so-called fit-type weather strip. The present invention relates to an improvement of a weather strip for a vehicle which can be relatively easily removed from a vehicle body panel together with a window glass at the time of emergency escape or the like.

[0002]

2. Description of the Related Art A weather strip having a substantially H-shaped cross section and having a glass fitting groove into which a window glass is fitted and a flange fitting groove into which a flange on the body panel side is fitted is provided at the center thereof. An anchor groove having a substantially T-shaped or wedge-shaped cross section is formed, and a window glass or a flange portion on the other side is fitted into each of the glass fitting groove and the flange fitting groove. An anchor bead having the same cross-sectional shape as the anchor groove is fitted to improve the mounting workability while maintaining the fitting holding force of the window glass and the flange, for example, Japanese Patent Publication No. 27-917 and Japanese Patent Publication No. 27-917. Kaihei 5-27
8532 and the like.

On the other hand, when the weather strip is applied to a window of a cabin of a construction machine, an operator in the cabin takes an anchor bead in an emergency in consideration of an emergency escape property when the vehicle falls down. Japanese Unexamined Patent Publication No. 9-99743 proposes that the weatherstrip is easily detached together with the window glass by pressing the window glass outward with a predetermined force.

FIG. 4 schematically shows a weather strip according to Japanese Patent Application Laid-Open No. 9-99743, in which outer and inner flange lips 52 and 53 sandwiching a flange portion 51 on the vehicle body panel side and a window glass 54 are shown. Outer and inner glass lips 55 and 56
In addition, in a structure provided with a string-shaped anchor bead 58 that fits into the anchor groove 57, the inner flange lip 53 that forms the flange fitting groove 59 together with the outer flange lip 52 is cut off. The length of the lip is substantially smaller than that of the flange lip 52 on the outer side.

[0005]

Problems to be Solved by the Invention Japanese Patent Application Laid-Open No. 9-99743
In the conventional structure described in Japanese Patent Application Publication No.
9 is cut off at the front end of a flange lip portion 53 on the indoor side which sandwiches the flange portion 51 fitted in the flange fitting groove 59 while forming the flange 9, and a height dimension of the flange lip 53. Inevitably, the flange holding force during normal operation is inevitably weakened, which tends to cause poor sealing and the like. In addition, the flange lip 53 partially cut away from the bottom of the flange fitting groove 59 is required. Since the stepped portion is formed between them, the initial operation force required for pulling out the window glass 54 from the flange portion together with the weather strip at the time of emergency escape is relatively large, and the intended purpose is not necessarily sufficient. Can not be achieved.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and a weather strip which has a sufficient glass holding force in a normal state and a reduced operation force required for removing the glass in an emergency escape. It is intended to provide a structure.

[0007]

According to a first aspect of the present invention, there is provided a flange fitting groove which fits into a flange of an opening edge of a window panel opening formed in a vehicle body panel, and fits into a wind panel. A wind panel fitting groove, and an anchor groove on the vehicle cabin side into which an anchor bead having a substantially wedge-shaped cross section for enhancing the panel clamping force in the flange fitting groove and the wind panel fitting groove is detachably fitted. And a structure of a weather strip for a vehicle which enables the attachment and detachment of a fitting portion between the flange portion and the flange fitting groove according to attachment and detachment of the anchor bead to and from the anchor groove.

In addition, the anchor of the flange inner lip, which is formed between the flange fitting groove and the anchor groove and has a substantially mushroom-like cross-section and which separates the flange fitting groove and the anchor groove, is formed between the flange fitting groove and the anchor groove. The thickness at the portion corresponding to the deepest portion of the groove is set to about half the thickness of the neck of the flange inner lip, and the flange inner lip is placed between the anchor groove and the wind panel fitting groove. When the flange inner lip is rotationally deformed toward the located window panel inner lip, the flange inner lip is received in the anchor groove as if it is almost completely buried in the anchor groove. And the amount of interference between the flange inner lip and the flange portion becomes zero or extremely small, and the phase between the flange portion and the flange fitting groove is reduced. Withdrawal is characterized in that it has become easy.

The reason why the thickness of the flange inner lip at the portion corresponding to the deepest portion of the anchor groove is set to approximately half the thickness of the neck of the flange inner lip is that the flange inner lip To easily deform the base portion from the root portion, and at the same time, to increase the dependency of the clamping effect exerted by the flange inner lip on the flange portion on the body panel side by the reinforcing effect of the anchor bead. When the anchor bead is not fitted to the inner lip, the flange inner lip is relatively fragile, so that it can be easily deformed, in particular, toward the opposite glass inner lip.

The above-mentioned window panel naturally includes not only a window glass but also a resin which may be used in place of the window glass or various panels similar thereto.

According to a second aspect of the present invention, in the first aspect of the present invention, the flange on the vehicle body panel side and the wind panel are mutually offset in the thickness direction.
The deepest part of the anchor groove extends to the extension of the vehicle body panel.

Therefore, according to the first aspect of the present invention,
When the anchor bead is fitted in the anchor groove, the wind panel clamping force and the flange clamping force on the vehicle body panel side are strengthened by the anchor bead, and the wind panel and the flange portion are securely clamped, so that the necessary and sufficient Sealability is ensured.

On the other hand, at the time of emergency escape as described above, when the wind panel is pushed out (outside of the vehicle compartment) after the anchor bead is pulled out, the flange inner lip receives the wind panel pushing force, The flange inner lip is rotated and deformed together with the glass inner lip forming the anchor fitting groove together with the flange inner lip, and the flange inner lip comes into close contact with the opposite glass inner lip as if the anchor groove is almost completely buried, As a result, the flange fitting groove into which the flange portion on the vehicle body panel side has been fitted is greatly opened. This is because the flange inner lip is greatly stretched from the base portion where the wall thickness is small, and as a result, the interference between the flange portion on the vehicle body panel side and the flange inner lip is significantly reduced, and the wind panel is extremely small in operating force. Together with the weather strip is pulled out from the flange on the vehicle body panel side.

According to the second aspect of the present invention, the flange portion on the vehicle body panel side and the wind panel are mutually offset in the plate thickness direction, while the deepest portion of the anchor groove is on the extension of the flange portion. As long as the anchor bead is not fitted in the anchor groove, the deformability at the root of the flange inner lip becomes more remarkable, and as described above, Regarding the pinching force exerted by the inner lip on the flange portion on the vehicle body panel side, the dependence on the reinforcing effect by the anchor bead becomes more remarkable.

[0015]

According to the first aspect of the present invention, each panel holding force can be obtained by the reinforcing effect of the fitting of the anchor bead into the anchor groove, so that the necessary and sufficient flange holding force and the normal state can be obtained. Not only is it possible to obtain the wind panel holding power and maintain its sealing properties for a long period of time, but also if you pull out the anchor bead and press the wind panel, the flange inner lip for holding the Is easily deformed as if it were buried, so that there is an effect that the wind panel can be pulled out with an extremely small operation force at the time of emergency escape or the like.

In particular, as in the second aspect of the present invention, the flange portion on the vehicle body panel side and the wind panel are offset, and the deepest portion of the anchor groove extends over the extension of the flange portion. If it is set, the flange inner lip is more easily deformed, and there is an effect that the operation force when pulling out the window panel can be further reduced.

[0017]

1 to 3 show a preferred embodiment of the present invention, and show an example in which the present invention is applied to a window 2 of a cabin 1 of a construction machine shown in FIG. In particular, FIG. 1A shows a normal state in which the weather strip is correctly mounted on the vehicle body panel and the window glass in a cross section along the line AA in FIG.
Indicates a state in which the window glass is being removed during emergency escape or the like. The structures shown in FIGS. 1A and 1B are employed not only in the window portion 2 but also in a window portion of a cabin ceiling (not shown).

As shown in FIGS. 1 and 2, the cabin 1 is formed by an outer panel and an inner panel which are body panels, and a window glass opening 3 is formed in each of the outer and inner panels. On the flange 4 at the opening edge of the window glass opening 3, a window glass 6 is attached via a weather strip 5.
Is installed. That is, the window glass 6 is mounted on the outside of the flange portion 4 so as to be offset by a predetermined amount a.

The weather strip 5 is formed of an extruded solid rubber body 7 and is disposed in a closed loop over the entire circumference of the window glass 6 with a uniform sectional shape as shown in FIG. Have been. A glass fitting groove (window panel fitting groove) 10 is formed in the rubber body 7 by a glass outer lip 8 and a glass inner lip 9, and a flange inner lip having a substantially mushroom-shaped cross section with the flange outer lip 11. The flange fitting groove 13 is formed so as to be opposite to the glass fitting groove 10 with the lip 12, and the cross section between the glass inner lip 9 and the flange inner lip 12 is substantially wedge-shaped. Alternatively, a modified T-shaped anchor groove 14 is formed.

The periphery of the window glass 6 is clamped and fixed in the glass fitting groove 10, and the flange 4 of the opening edge of the window glass opening 3 is clamped and fixed in the flange fitting groove 13. Further, a string-shaped anchor bead 15 made of solid rubber and having the same cross-sectional shape as the anchor groove 14 is fitted into the anchor groove 14. That is, after the window glass 6 or the flange portion 4 is sandwiched and fixed to the window glass fitting groove 10 and the flange fitting groove 13, respectively,
Thereafter, anchor beads 15 are inserted into anchor grooves 14.
Are fitted, the flange inner lip 12 and the glass inner lip 9 located on both sides of the anchor groove 14 are pushed open toward the flange portion 4 or the window glass 6 side, respectively. 6, the holding force is strengthened so that a predetermined flange holding force or glass holding force can be obtained.

Here, as shown in FIG. 1B, the flange inner lip 12 was rotated to the maximum extent toward the glass inner lip 9 in a state where the anchor bead 15 was not mounted in the anchor groove 14. Occasionally, the size or shape of each part is adjusted so that the flange inner lip 12 is greatly stretched from the base part having a small thickness and the interference amount b between the tip of the flange part 4 and the tip of the flange inner lip 12 is zero or minimal. Is set.

More specifically, as shown in an enlarged view in FIG. 2, the inner side surface 9a of the glass inner lip 9 where the anchor groove 14 is formed has the flange inner lip 12 opposed to the inner surface 9a rotated and deformed to the maximum. Time ((b) of FIG. 1)
State), the inner surface 1 of the flange inner lip 12
2a, and the space of the original anchor groove 14 is closed as if it were almost completely buried with the rotationally deformed flange inner lip 12. .

That is, the flange inner lip 12
Is shaped so that it can be easily deformed toward the glass inner lip 9 when the anchor bead 15 is not fitted in the anchor groove 14.
The innermost surface of the inner surface 12b of the flange inner lip 12 forming the flange fitting groove 13 while the deepest portion of the inner surface 4 extends to the vicinity of the center line of the total thickness of the flange portion 4,
More specifically, the flange inner lip 12 is largely cut off like a hatched portion P in FIG.
The part extending from the base to the neck is thinned as a whole. Thereby, the flange inner lip 12
The thickness of the base t is half the thickness T of its neck (T =
2t), and at the same time, the trajectory Q at the tip of the flange inner lip 12 when the flange inner lip 12 is rotationally deformed.
Is located inside the tip lip 9a on the glass inner lip 9 side, and the position of the rotation center C of the flange inner lip 12 is set.

Therefore, according to the present embodiment, the anchor groove 14 is normally provided as shown in FIG.
Since the anchor bead 15 is fitted to the flange inner lip 12, the flange inner lip 12 and the glass inner lip 9 are pushed open toward the flange portion 4 side or the window glass 6 side, respectively, due to the so-called wedge action of the anchor bead 15. Due to this reinforcing effect, the flange portion 4 and the window glass 6 are provided with the outer and inner flange lips 11 and 12 or the glass lips 8 and
9 is firmly held and fixed. As a result, as long as the anchor beads 15 are not removed, the flange holding force and the window glass holding force are properly held, and the necessary and sufficient sealing properties are also secured.

On the other hand, the cabin 1 of the construction machine shown in FIG.
When the operator needs to pull out the window glass 6 and escape immediately, for example, when the operator is trapped in the window, the operator first pulls out the anchor bead 15 from the anchor groove 14 and then pulls out the window. The glass 6 is pressed outward.

Although not particularly shown in the present embodiment, the anchor bead 15 is fitted in the anchor groove 14 so as to go around the anchor bead 14, and both ends thereof abut each other. Since a pull ring or a pull tab is connected to the terminal portion, the anchor bead 15 can be easily detached from the anchor groove 14 by pulling out with the pull ring or the pull tab.

When the windshield 6 is pressed after the anchor bead 15 has been pulled out as described above, the tip of the flange portion 4 and the inner side surface 12b of the flange inner lip 12 are pressed as shown in FIG. For sliding contact, the flange inner lip 12 is rotated and deformed toward the glass inner lip 9. At this time, since the flange inner lip 12 is set so as to be easily deformed from the root portion as described above, the flange inner lip 12 is displaced to the outside of the window glass 6.
Is deformed smoothly while elongating from its base,
While being in close contact with the glass inner lip 9, it is closed so as to almost completely fill the space that had been present as the anchor groove 14, and as a result, the flange fitting groove 13 in which the flange portion 4 has been fitted has a large opening. Is opened.

At this time, the flange portion 4 and the window glass 6
Are offset from each other in the thickness direction,
The pushing operation force of the window glass 6 effectively acts on a sliding contact portion between the tip of the flange portion 4 and the flange inner lip 12, and the flange inner lip 12 smoothly rotates and deforms.

As a result, the amount of interference b between the tip of the flange portion 4 and the tip of the flange inner lip 12 is almost eliminated or minimized, and the flange inner lip 12 moves over the flange portion 4 with the above operating force. Because I'm going to break away from it,
Is completely removed from the flange portion 4 together with the weather strip 5.

As described above, according to the present embodiment, it is of course possible to secure the necessary and sufficient flange holding force and window glass holding force and maintain the sealing performance for a long period of time in normal times, such as emergency escape. In this case, if it becomes necessary to pull out the window glass 6, the window glass 6 can be pulled out of the vehicle body panel together with the weather strip 5 with an extremely small operation force.

[Brief description of the drawings]

FIG. 1 is a view showing a preferred embodiment of the present invention,
FIG. 4A is a cross-sectional view showing a normal mounting state of the window glass corresponding to a cross section taken along line AA in FIG. 3, and FIG. 4B is a cross-sectional view when the window glass is pulled out together with a weather strip.

FIG. 2 is an enlarged view of a main part of FIG.

FIG. 3 is an explanatory side view showing an example of a cabin of the construction machine.

FIG. 4 is a cross-sectional view showing an example of a conventional so-called fit-type weather strip.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 3 ... Window glass opening part 4 ... Flange part 5 ... Weather strip 6 ... Window glass 7 ... Rubber body 8 ... Glass outer lip 9 ... Glass inner lip 10 ... Glass fitting groove 11 ... Flange outer lip 12 ... Flange inner lip 13 ... Flange fitting groove 14: Anchor groove 15: Anchor bead b: Interference amount between flange portion and flange inner lip

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Hiroshi Junme, 330, Naganuma-cho, Inage-ku, Chiba-shi, Chiba Kinu Kawa Rubber Industries, Ltd. (72) Inventor Noriaki Endo 1-1-1, Shiohama, Kawasaki-ku, Kawasaki-shi, Kanagawa Prefecture. No. 1 Press Industry Co., Ltd. (72) Inventor Hideo Kosaka 1-1-1 Shiohama, Kawasaki-ku, Kawasaki-shi, Kanagawa Pref.

Claims (2)

[Claims] 1. A flange fitting groove that fits into a flange portion of an opening edge of a window panel opening formed in a vehicle body panel, a window panel fitting groove that fits into a window panel, An anchor groove on the vehicle cabin side to which an anchor bead having a substantially wedge-shaped cross-section for enhancing each panel holding force in the wind panel fitting groove is detachably fitted, according to the attachment / detachment of the anchor bead to / from the anchor groove. The vehicle weatherstrip, wherein the flange portion and the flange fitting groove can be detached from each other at the fitting portion, wherein the flange fitting groove and the anchor are located between the flange fitting groove and the anchor groove. The thickness of the flange inner lip, which has a substantially mushroom-shaped cross section and separates the groove from the groove, at the portion corresponding to the deepest portion of the anchor groove, The flange inner lip is set to approximately half the thickness of the neck of the inner lip, and the flange inner lip is rotationally deformed toward the wind panel inner lip located between the anchor groove and the wind panel fitting groove. When the flange inner lip is accommodated in the anchor groove as if the flange inner lip is almost completely buried, the flange fitting groove is expanded by that much, and the flange inner lip and the flange portion are The interference amount becomes zero or minimum,
A weather strip for a vehicle, wherein the flange portion and the flange fitting groove are easily detached from each other. 2. The method according to claim 1, wherein the flange portion and the wind panel are offset from each other in a thickness direction, and a deepest portion of the anchor groove extends on an extension of the flange portion. A weather strip for a vehicle according to Claim 1.