JP2010030411A - Glass run - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a glass run adapted to surely and sufficiently reduce so-called bottoming noise during closing of a sliding glass without impairing sealing properties as the function inherent in the glass run, even if the accuracy of fitting of the sliding glass is varied. <P>SOLUTION: On a bottom wall 13c of a die-forming upper side part 10a for receiving an upper end part of a door glass, a plurality of shock absorption lips 17 directed toward an opening end of the die-forming upper side part 10a and inclined toward a connection part 11 between the die-forming upper side part 10a and a first extrusion part 6 are projected in a longitudinal direction of the die-forming upper side part 10a. A clearance is provided between each of the shock absorption lips 17 and both sidewalls 13a, respectively. These shock absorption lips 17 receive the upper end part of the door glass during elevation of the door glass, and is deflected and deformed toward the bottom wall 13c without accompanying deformation of both the sidewalls 13a. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a glass run attached to a window frame of an automobile, and more particularly to a glass run in which a so-called bottom sound is reduced when a slide glass is closed.

As this type of glass run, for example, one described in Patent Document 1 has been proposed. In the glass run described in Patent Document 1, intermediate portions in the height direction of both side walls of the glass run main body having a substantially channel cross section are connected by an intermediate wall, and the bottom wall and the intermediate wall of the glass run main body are connected. A space is formed. That is, when the slide glass is closed, the slide glass is received by the intermediate wall, and the intermediate glass is bent and deformed to the bottom wall side so as to crush the space, so that the slide glass pushes up the bottom wall of the glass run body. The so-called bottomed sound generated is reduced.
Utility model registration No. 2602948

  However, in the glass run described in Patent Document 1, when the intermediate wall is bent and deformed toward the bottom wall side when the slide glass is closed, the both side walls of the glass run body are bent in a direction close to each other by being pulled by the intermediate wall. A gap may be generated between the side walls and the window frame when the glass is closed. As a result, not only the quality of appearance is deteriorated, but also the sealing performance, which is the original function of glass run, may be deteriorated, which is not preferable.

  In addition, the slide glass contact position of the intermediate wall varies in the width direction of the glass run according to the installation of the slide glass, and in some cases, when the slide glass is closed, the upper end portion of the slide glass is connected to the side wall of the intermediate wall. May come into contact. In such a case, the intermediate wall is not sufficiently bent and deformed, and there is a possibility that the so-called bottoming sound reduction degree becomes insufficient.

  The present invention has been made in view of the above-mentioned problems, and even if the slide glass is unevenly mounted, the so-called bottom sound at the time of closing the slide glass is surely obtained without impairing the sealing performance which is the original function of the glass run. And it aims at providing the glass run which can fully be reduced.

  The invention according to claim 1 is a glass run that is mounted on the inner peripheral side of a window frame of an automobile and receives the outer peripheral edge of the slide glass, and has a substantially cross-sectional channel shape. A buffer lip that is inclined toward one side in the longitudinal direction of the one side of the glass run is protruded from the bottom wall of the glass run toward the opening end side of the one side of the glass run, and both side walls of the one side of the glass run and the buffer lip Is provided so that when the slide glass is closed, the end portion of the slide glass in the closing direction is received by the buffer lip.

  Therefore, in the first aspect of the present invention, since a gap is provided between the buffer lip and both side walls, the end portion of the slide glass in the closing direction is closed during the closing operation of the slide glass. When contacting the lip, the buffer lip is bent and deformed so that the extending direction of the buffer lip is bent with the base portion as a fulcrum without deformation of both side walls, and so-called bottom noise of the slide glass is reduced. become. Further, even if the slide glass contact position of the buffer lip varies in the width direction of the buffer lip according to the installation of the slide glass, the buffer lip surely undergoes sufficient deformation.

  In addition, the invention according to claim 2 is characterized in that a pair of projections that respectively overlap with both end portions in the width direction of the buffer lip on the projection surface in the slide glass opening / closing direction project from the bottom wall of one side of the glass run. The two projecting portions are spaced apart from the buffer lip in the free state of the buffer lip, and when the buffer lip is bent and deformed toward the bottom wall side of the glass run body, the width of the buffer lip is It is characterized in that both ends in the direction are supported.

  According to the second aspect of the present invention, the closing direction side end of the slide glass contacts the buffer lip during the closing operation of the slide glass, and the buffer lip extends in the extending direction of the buffer lip with the base portion as a fulcrum. When bending and deforming toward the bottom wall side so as to bend, both end portions in the width direction of the buffer lip are supported at both ends by the both protrusions. When the slide glass further closes from this state, the buffer lip is bent and deformed so as to bend in the width direction of the buffer lip with a contact portion with the two protrusions as a fulcrum.

  Preferably, when the root part of the buffer lip is formed thicker than the tip part of the buffer lip, as in the invention described in claim 3, the bending lip with respect to the root part of the buffer lip is supported. The rigidity is increased, and so-called bottoming sound when the slide glass is closed can be reduced more effectively.

  Further, as in the invention described in claim 4, when a plurality of buffer lips project in the longitudinal direction of the glass run body on the bottom surface of the glass run body, the slide glass is closed when the slide glass is closed. Since the end portion is received by a plurality of buffer lips, the so-called bottomed sound when the slide glass is closed is further preferable.

  Further, as in the invention described in claim 5, the first extrusion molding portion that is attached to one side of the window frame and receives the end portion on the side of the slide glass in the closing direction, and is attached to the other side of the window frame. A second extrusion molding section, and a substantially L-shaped molding section that connects the first extrusion molding section and the second extrusion molding section, and together with the first extrusion molding section of the mold molding section, the above-mentioned When the buffer lip protrudes from the bottom wall of the mold forming one side constituting the glass run one side, the buffer lip includes the mold forming part as in the invention according to claim 6. A mold element that controls the molding of the inner surface of the molded part after the molding of the molded part when extending in a direction substantially parallel to a virtual line connecting the corner part on the inner peripheral side and the corner part on the outer peripheral side. Easily from the molded part in the direction along the imaginary line Ri put out as to become.

  According to at least the first aspect of the present invention, when the end of the slide glass in the closing direction comes into contact with the buffer lip during the closing operation of the slide glass, the buffer lip is bent without deformation of both side walls. Therefore, even if the slide glass is unevenly built, the so-called bottom noise when the slide glass is closed can be surely and sufficiently reduced without impairing the sealing performance that is the original function of the glass run.

  In particular, according to the invention described in claim 2, when the slide glass is closed, the buffer lip is bent and deformed so as to bend the extending direction of the buffer lip with the root portion as a fulcrum. Since bending is performed so that the width direction of the buffer lip is bent using both ends in the width direction as fulcrums, so-called bottoming sound when the slide glass is closed can be more effectively reduced.

  In addition, according to the third and fourth aspects of the invention, the shock absorbing lip can more effectively reduce the impact when the slide glass is closed. Can be reduced.

  According to the invention described in claim 5, the buffer lip can be easily formed by molding, and the mold forming part is molded according to the invention described in claim 6. At the time of subsequent demolding, the mold element that controls the molding of the inner surface of the molded part can be easily taken out from the molded part in the direction along the imaginary line, and the moldability of the molded part is further improved. is there.

  FIG. 1 is a diagram showing a front door of an automobile equipped with a glass run according to the present invention as a more specific first embodiment of the present invention.

  As shown in FIG. 1, a front door 1 of an automobile has a sash 2 that is a substantially arched window frame formed by roll forming and is a window opening formed on the inner peripheral side of the sash 2. 3 is opened and closed by the raising and lowering operation of the door glass 4 which is a slide glass. The sash 2 is provided with a glass run 5 having a substantially channel cross section that guides the door glass 4 up and down and seals between the door glass 4 and the sash 2.

  The glass run 5 is formed in an approximately channel shape in cross section by an extrusion molding method, and a first extrusion molding portion 6 mounted on the sash upper side 2a along the vehicle body longitudinal direction in the sash 2 and an approximately channel shape in cross section by the extrusion molding method. And a pair of second extrusion molding portions 7 and 8 respectively attached to the front and rear sash vertical sides 2b and 2c along the vertical direction of the vehicle body of the sash 2, both the glass run vertical sides 7 and 8, and the glass run There are front and rear mold parts 9 and 10 each having a substantially L-shaped cross section for connecting the upper side parts 6 respectively. The glass run upper side 6, the glass run vertical sides 7 and 8, and the both mold forming parts 9 and 10 are all formed of a resin material typified by TPO, for example.

  FIG. 2 is a side view showing a corner portion on the rear side of the vehicle body in the glass run 5 shown in FIG. 3 is an AA cross-sectional view in FIG. 2, and FIG. 4 is a BB cross-sectional view in FIG. 2 to 4 will be described below as a representative example of the two molded parts 9 and 10, but the molded part 9 on the front side of the vehicle body is also configured in substantially the same manner. Yes.

  As shown in FIG. 2, the mold forming part 10 includes a mold forming upper side part 10a as one side part of the mold forming extending on the extension line of the glass run upper side part 6, and a mold extending downward from the rear end of the mold forming upper side part 10a. A molding vertical side portion 10b, and the front end of the molding upper side portion 10a is connected to the rear end of the glass run upper side portion 6 with the connecting portion 11, while the lower end of the molding vertical side portion 10b has the connection portion 12 with the glass run. It is connected to the upper end of the vertical side portion 8. And the molding upper side part 10a and the 1st extrusion molding part 6 function as a glass run one side part which receives the closing direction side edge part of the door glass 4, ie, an upper end part, when the window opening part 3 is fully closed. .

  As shown in FIGS. 3 and 4, the mold forming upper side portion 10 a has a glass run body 13 having a substantially channel cross section, and the tips of both side walls 13 a and 13 b of the glass run body 13 toward the bottom wall 13 c of the glass run body 13. A pair of glass slips 14a, 14b extending, a pair of cover lips 15a, 15b extending from the tips of the side walls 13a, 13b of the glass run body 12 to the anti-glass slips 14a, 14b, respectively, and the sash 2 attached Holding lips 16 a and 16 b that engage with the sash 2. Then, a mold forming upper side portion 10a is mounted on a retainer portion 2d having a substantially channel cross section formed on the inner peripheral side of the sash 2, and the edge portion of the open end of the retainer portion 2d is covered by both cover lips 15a and 15b, respectively. At the same time, when the door glass 4 is raised, both the glass slips 14 a and 14 b are brought into elastic contact with both the front and back surfaces of the door glass 4.

  Further, the bottom wall 13c of the glass run main body 13 in the mold forming upper side portion 10a is provided with a tongue-like buffer lip 17 inclined toward the connecting portion 11 toward the opening end side of the glass run main body 13. A plurality of protrusions are provided in the longitudinal direction of 10a. Each of the buffer lips 17 has a constant thickness in a direction substantially parallel to an imaginary line L that connects a corner portion on the inner peripheral side of the molded portion 10 and a corner portion on the outer peripheral side of the molded portion 10. It has a straight shape extending, and a gap G is formed between each buffer lip 17 and both side walls 13a13b of the glass run body 13.

  FIG. 5 is a cross-sectional view showing a core, which will be described later, of the mold for forming the mold forming portion 10 configured as described above.

  In order to mold the mold molding unit 10 configured as described above, the rear end of the first extrusion molding unit 6 and the upper end of the second extrusion molding unit 8 are respectively inserted into a mold composed of a plurality of mold elements (not shown). In the state where the rear end of the first extrusion molding part 6 and the upper end of the second extrusion molding part 8 face each other leaving the space to be the mold molding part 10, a resin material is injected into the space. Thereby, the first extrusion molding unit 6 and the second extrusion molding unit 8 are connected via the mold molding unit 10. If the mold is opened after the mold forming part 10 is formed in this way, as shown in FIG. 5, the core 18 with the core 18 that controls the molding of the inner surface of the mold forming part 10 among the mold elements is provided. The molded part 10 is taken out, and the core 18 is taken out from the molded part 10. At this time, since each buffer lip 17 is formed substantially in parallel with the imaginary line L, each of the buffer lips 17 is removed from the mold forming part 10 along the imaginary line L. Are smoothly pulled out from the respective recesses 18a for forming the buffer lip provided on the surface.

  6 is a cross-sectional view showing a state in which the door glass 4 is closed in FIG. 3, and FIG. 7 is a cross-sectional view taken along the line CC in FIG.

  In the glass run 5 configured as described above, as shown in FIGS. 6 and 7, the upper end portion of the door glass 4 is received by the buffer lips 17 when the door glass 4 is raised. Specifically, when the upper end portion of the door glass 4 comes into contact with each buffer lip 17 while the door glass 4 is raised, each buffer lip 17 bends the extending direction of the buffer lip 17 with the root portion as a fulcrum. Thus, by bending and deforming to the bottom wall 13c side, the impact when the door glass 4 is closed is alleviated and so-called bottoming noise is reduced. At this time, since the gap G is provided between each buffer lip 17 and both side walls 13a and 13b, each buffer lip 17 is flexibly deformed without deformation of both side walls 13a and 13b. Become. That is, the door glass 4 contact position of each buffer lip 17 varies in the width direction of each buffer lip 17 according to the installation of the door glass 4, for example, the door glass 4 contacts one end in the width direction of each buffer lip 17. Even in this case, each of the buffer lips 17 is sufficiently bent and deformed.

  Therefore, according to this embodiment, even if the installation of the door glass 4 varies, the so-called bottom sound when the door glass 4 is closed is surely and sufficiently obtained without impairing the sealing performance that is the original function of the glass run 5. Can be reduced.

  Further, since each buffer lip 17 is formed substantially in parallel with the imaginary line L, each buffer lip is formed from each buffer lip molding recess 18a provided in the core 18 without dividing the core 18 into a plurality of parts. 17 can be pulled out smoothly without difficulty, so that the moldability of the molded part 10 is improved and the cost is advantageous.

  8 and 9 are views showing modifications of each buffer lip 17 in the first embodiment described above, and are sectional views corresponding to FIG. 4 in the first embodiment. A typical example of the mold forming part 10 on the rear side of the vehicle body shown in FIGS. 8 and 9 will be described below as a representative example of both the mold forming parts 9 and 10, but the mold forming part 9 on the front side of the vehicle body is also configured in a similar manner. .

  Each buffer lip 19 of the modification shown in FIG. 8 is formed in a tapered shape that gradually becomes thinner from the base side toward the tip side. Moreover, each buffer lip 20 of the modification shown in FIG. 9 is formed by forming a built-up portion 20b between a lip portion 20a and a bottom wall 13c extending from the bottom wall 13c with a constant thickness, The base portion of each buffer lip 20 is thicker than the tip end portion by the build-up portion 20b. Other parts are the same as those in the first embodiment described above.

  Therefore, according to the modification shown in FIGS. 8 and 9, in addition to the effects substantially the same as those of the first embodiment, the rigidity against the bending deformation with the base portion of each buffer lip 19 or each buffer lip 20 as a fulcrum is improved. Therefore, the so-called bottom sound when the door glass 4 is closed can be more effectively reduced.

  10 and 11 are views showing a second embodiment of the present invention. FIG. 10 is a cross-sectional view corresponding to FIG. 3 in the first embodiment, and FIG. 11 is a cross-sectional view taken along the line DD in FIG. It is. As a representative example of both the mold forming parts 9 and 10, a description will be given below of the mold forming part 10 on the rear side of the vehicle body shown in FIGS. 10 and 11, but the mold forming part 9 on the front side of the vehicle body is also configured in substantially the same manner. .

  In the second embodiment shown in FIGS. 10 and 11, polymerization is performed on the bottom wall 13 c of the glass run body 13 in the upper side portion 10 a for molding and on both ends in the width direction of the buffer lip 17 on the projection surface in the door glass 4 opening / closing direction. A pair of projecting portions 21 projecting from the buffer lips 17 are provided. Other parts are the same as those in the first embodiment described above.

  More specifically, each projection 21 is formed in a substantially trapezoidal shape on the cross section along the longitudinal direction of the molding upper side portion 10a, and the end surface on the connection portion 11 side of each projection 21 is the bottom. While being formed substantially at right angles to the wall 13 c, the end surface on the anti-connection portion 11 side of each protrusion 21 is formed substantially parallel to the virtual line L.

  12 is a cross-sectional view showing a state in which the door glass 4 is closed in FIG.

  In the glass run 5 configured as described above, when the window opening 3 is opened, that is, when each buffer lip 17 is in a free state, each buffer lip 17 and both protrusions 21 corresponding to each buffer lip 17 are provided. While being spaced apart from each other, when the respective buffer lips 17 are bent and deformed so as to bend the extending direction of the respective buffer lips 17 with the root portion serving as a fulcrum while the door glass 4 is raised, the width of each buffer lip 17 is increased. Both ends in the direction are both supported by both protrusions 21. Then, when the door glass 4 further rises from this state, each buffer lip 17 is bent and deformed toward the bottom wall 13c so that the width direction of each buffer lip 17 is bent with the contact portion with both projections 21 as a fulcrum. Will do.

  Therefore, according to the present embodiment, when the door glass 4 is closed, each buffer lip 17 is bent and deformed so as to bend the extending direction of the buffer lip 17 with its root as a fulcrum, Since the both ends of the width direction are bent and deformed so that the width direction of the buffer lip 17 is bent, the impact when the door glass 4 is closed can be effectively mitigated so that the generation of a so-called bottom sound can be prevented more reliably. Become.

  In the second embodiment, the example in which each buffer lip 17 and each projection 21 are used in combination is shown based on the first embodiment described above, but is shown in FIG. 8 described above. It is also possible to use each buffer lip 19 of the modified example or each buffer lip 20 of the modified example shown in FIG.

The figure which shows the front door of a motor vehicle as the 1st Embodiment of this invention. The side view which shows the corner part of the vehicle body rear side among the glass runs shown in FIG. AA sectional drawing of FIG. BB sectional drawing of FIG. Sectional drawing which shows the core for shape | molding a shaping | molding part. Sectional drawing which shows the state which closed the door glass in FIG. CC sectional drawing of FIG. Sectional drawing which shows the modification of each buffer lip in 1st Embodiment. Sectional drawing which shows another modification of each buffer lip in 1st Embodiment. Sectional drawing which shows the 2nd Embodiment of this invention. DD sectional drawing of FIG. Sectional drawing which shows the state which closed the door glass in FIG.

Explanation of symbols

2 ... Sash (window frame)
4 ... Door glass (slide glass)
DESCRIPTION OF SYMBOLS 6 ... 1st extrusion part 7 ... 2nd extrusion part 8 ... 2nd extrusion part 9 ... Molding part 10 ... Molding part 10a ... Molding upper side (molding one side part)
13c ... Bottom wall 17 ... Buffer lip 19 ... Buffer lip 20 ... Buffer lip 21 ... Projection L ... Virtual line G ... Gap

Claims (6)

In a glass run that is mounted on the inner peripheral side of the window frame of an automobile and receives the outer peripheral edge of the slide glass, the channel has a substantially channel shape.
On the bottom wall of one side of the glass run that receives the end in the closing direction of the slide glass, a buffering lip that is inclined toward one side in the longitudinal direction of the one side of the glass run protrudes toward the opening end of the one side of the glass run. A gap is provided between the buffer lip and both side walls of the one side of the glass run,
A glass run characterized in that when the slide glass is closed, the end of the slide glass in the closing direction is received by the buffer lip. On the bottom wall of the one side of the glass run, a pair of projections that respectively overlap with both end portions in the width direction of the buffer lip on the projection surface in the slide glass opening and closing direction are provided to project,
Both the projecting portions are separated from the buffer lip in the free state of the buffer lip, and when the buffer lip is bent and deformed toward the bottom wall side of the glass run body, both end portions in the width direction of the buffer lip are formed. The glass run according to claim 1, wherein each glass run is supported.   The glass run according to claim 1 or 2, wherein a base portion of the buffer lip is formed thicker than a tip portion of the buffer lip.   The glass run according to any one of claims 1 to 3, wherein a plurality of the buffer lips are provided in a longitudinal direction of one side of the glass run. A first extrusion molding part that is mounted on one side of the window frame and receives an end of the slide glass in the closing direction; a second extrusion molding part that is mounted on the other side of the window frame; and a first extrusion molding part; A substantially L-shaped molding part that connects the second extrusion molding part,
The said buffer lip protrudes in the bottom wall of the one side of the molding which comprises the said glass run one side part with the 1st extrusion molding part among the said molding parts, The any one of Claims 1-4 characterized by the above-mentioned. The glass run described in 1.   The said buffering lip is extended in the substantially parallel direction with respect to the virtual line which connects the corner part of the inner peripheral side and the corner part of an outer peripheral side among the said shaping | molding parts. Glass run.

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