JP5946661B2 - Inside seal mounting structure for automobile doors - Google Patents

Description

  The present invention relates to an inside seal mounting structure for an automobile door, and more particularly to an inside seal mounting structure that seals the sliding contact portion while being in sliding contact with a door glass at a door waist opening of the automobile door. .

  Conventionally, the structure described in Patent Documents 1 and 2 has been proposed as an inside seal mounting structure in this type of automobile door.

  In the inside seal structures described in these Patent Documents 1 and 2, a seal piece opposite to the glass seal lip is formed separately from the glass seal lip pressed against the door glass, and the seal piece is used as a door. By pressing against the inner panel, the gap with the door trim is closed, so that the flow of air at that part and the intrusion of impact sound from the outside are blocked to ensure quietness inside the passenger compartment. It has become.

Japanese Utility Model Publication No. 3-33710 JP-A-8-197945

  For example, as described in Patent Document 2, in a type in which an inside seal is directly attached to a trim flange portion that is bent so as to face the door waist opening portion of the door trim, depending on the specification of the door, the door inner panel And the trim flange portion may change slightly. In particular, when the distance between the door inner panel and the trim flange portion increases, it is necessary to increase the protruding length of the seal piece accordingly.

  Since the inside seal is fixed to the trim flange portion in advance and the door trim is attached to the door inner panel, if the protruding length of the seal piece is large as described above, the seal piece becomes an obstacle and is assembled. Defects and entrainment of the seal piece itself occur, and the assembly performance and the seal performance are reduced due to the seal piece.

  In addition, in the so-called cantilever lip type seal pieces as described in Patent Documents 1 and 2, the larger the protrusion length, the easier the undulation phenomenon occurs at the tip of the seal piece, and sufficient sealing performance is obtained. It may not be possible.

  The present invention has been made paying attention to such problems, and in particular, even when the distance between the trim flange portion and the door inner panel is relatively large, it is possible to prevent assembly failure and entrapment of the seal piece. An inside seal mounting structure that can be prevented is provided.

The invention according to claim 1 is attached to a trim flange portion that is bent so as to face a door waist opening portion of a door trim mounted on a door inner panel of an automobile door and is located on the outdoor side of the door inner panel. And an inside seal mounting structure that seals the sliding contact portion while being in sliding contact with the liftable door glass.

The inside seal has two upper and lower glass seal lips from the plate-shaped mounting base fixed to the trim flange portion through the claw pieces that protrude and bend to the rear surface of the trim flange portion toward the door glass side. while you have protruded, the mounting base portion has a base portion seated on the trim flange, it is bent formed from the lower end of the base portion so as to overhang the lower portion of the trim flange portion to the door inner panel side, the tip And an extension flange portion protruding so as to extend to the door inner panel side than the nail piece after bending of the rear surface of the trim flange portion , and both are formed as a substantially U-shaped section having an obtuse angle The mounting base portion is provided with a core material so as to extend from the base portion to the distal end portion of the extension flange portion.

Furthermore, the tip of the extension flange is characterized by a panel seal lip pressed against the de Ain'napaneru are upward protruded.

  In this case, in order to prevent the occurrence of the so-called undulation phenomenon at the front end of the panel seal lip, as described in claim 2, the panel seal lip has a substantially cross-sectional shape by bending the front end portion to the side opposite to the door inner panel. It is desirable that it is formed in a U-shape, and a bent portion having a substantially U-shaped cross section is pressed against the door inner panel.

  More specifically, as described in claim 3, the base portion is extended from the lower end of the base portion in a substantially right angle direction, and the lower glass seal lip is inclined obliquely upward from the tip of the base portion. It is desirable that the connecting portion between the root portion and the lower glass seal lip is a bent portion that serves as a bending fulcrum of the lower glass seal lip.

  Furthermore, for example, when considering the posture stability of the inside seal alone in the distribution process such as parts transportation from the parts maker to the car maker, the lower surface of the bent portion is extended as described in claim 4. It is desirable to set so as to be positioned on or below the extended line of the lower surface of the flange portion. More desirably, as described in claim 5, a protrusion is provided on the lower surface of the bent portion.

  Therefore, in at least the first aspect of the present invention, even if the distance between the door inner panel and the trim flange portion is increased, it is extended from the lower end of the base portion so as to overhang below the trim flange portion. Since the panel seal lip is provided at the end of the highly rigid extension flange portion, the panel seal lip does not obstruct the assembly failure or the panel seal lip itself.

  According to the first aspect of the present invention, the panel seal lip is not obstructed as described above, and the assembly failure and the entanglement of the panel seal lip do not occur. The sealing performance by the seal lip is also improved.

  According to the invention of claim 2, the panel seal lip itself has a substantially U-shaped cross section, and the bent portion having the generally U-shaped cross section is brought into pressure contact with the door inner panel. Since the panel seal lip is pressed against the door inner panel in a so-called abdomen shape, the so-called wavy phenomenon of the seal lip tip or the seal wire can be prevented in advance, contributing to further improvement of the sealing performance, It is possible to prevent inversion of the panel seal lip by absorbing the dimensional variation of the inside seal or the door trim and the variation in installation accuracy.

  According to the third aspect of the present invention, in consideration of the posture in the physical distribution process of the inside seal alone, the parts passing box with the lower surface of the extension flange portion and the base portion of the lower glass seal lip as the seating surface Therefore, there is an advantage that the posture of the inside seal is stabilized with only a slight support. In particular, according to the inventions of claims 4 and 5, the effect of stabilizing the posture of the inside seal is obtained. It becomes even more prominent.

The perspective view of the door inner side in the door open state of a motor vehicle. It is a figure which shows 1st Embodiment of the attachment structure of the vehicle inside seal which concerns on this invention, Comprising: The expanded sectional view which follows the AA line in FIG. FIG. 3 is a perspective view of main parts of the inside seal alone shown in FIG. The principal part perspective view which shows the state which attached the inside seal shown in FIG. 3 to the trim flange part by the side of a door trim. Cross-sectional explanatory drawing which shows the relative positional relationship at the time of attaching the inside seal shown in FIG. 3 to the trim flange part by the side of a door trim. Explanatory drawing which shows the attitude | position in the physical distribution process only by the inside seal shown in FIG. It is a figure which shows the modification of the attachment structure of the said inside seal, and is explanatory drawing of a site | part equivalent to FIG. It is a figure which shows another modification of the attachment structure of the said inside seal, and is explanatory drawing of a site | part equivalent to FIG.

  1 to 5 show a first specific embodiment for carrying out the inside seal mounting structure according to the present invention. FIG. 1 is an explanatory view of the inside of a door of an automobile to which the present invention is applied, that is, the door. FIG. 2 shows a perspective view of the inside of the door in the open state, and FIG. 2 shows an enlarged cross-sectional view along the line AA in FIG.

  1 and 2, a door body 2 of an automobile door 1 is constituted by a door inner panel 3 and a door outer panel (not shown) as is well known, and a door waist flange portion 4 on the door inner panel 3 side and A door waist opening 5 is formed by a door waist flange portion on the side of the door outer panel (not shown) facing the door. A door-type door glass 6 is accommodated in the door waist opening 5, and a door trim 7, which is a hard type (resin) interior material, is mounted on the inner side of the door inner panel 3. .

  At the upper end of the door trim 7, a trim flange portion 9 is bent at a substantially right angle downward from the trim body 8, and this trim flange portion 9 is located between the door waist flange portion 4 on the door inner panel 3 side and the door glass 6. It faces the door waist opening 5 so as to be sandwiched between the two. An inside seal 10 formed of a rubber-based material (including a resin material) is firmly attached to the surface of the trim flange portion 9 on the door glass 6 side.

  Note that both the trim flange portion 9 and the inside seal 10 extend over substantially the entire length of the door 1 in the front-rear direction. Details of how the inside seal 10 is attached to the trim flange portion 9 will be described later.

  The inside seal 10 has a plate-like mounting base 11 bent in a substantially U-shaped cross-section, and substantially the same cross-sectional shape protruding from the mounting base 11 toward the door glass 6 in an upper and lower two steps. A pair of tongue-like glass seal lips 12 and a panel seal lip 13 having a generally U-shaped cross section extending obliquely upward from the lower end of the mounting base 11 toward the door inner panel 3 side. .

  The mounting base portion 11 is a base portion 14 seated on the trim flange portion 9, and a plate-like shape that is bent from the lower end of the base portion 14 so as to overhang below the trim flange portion 9 and protrudes toward the anti-door glass 6 side. And the base portion 14 and the extension flange portion 15 are formed in a substantially U-shaped cross section, and the base portion 14 and the extension flange portion are provided to improve shape retention. 15, for example, a metal core 16 having a substantially U-shaped cross section is embedded.

  And the base part 17 of the minimum length w1 is extended from the upper and lower ends of the base part 14 toward the substantially right-angled direction on the side of the door glass 6, and each of the base part 17 is obliquely upward from the tip. A glass seal lip 12 is formed to protrude. As a result, the connecting portion between the root portion 17 and the pair of upper and lower glass seal lips 12 serves as a bent portion 18 that substantially becomes a bending fulcrum of the pair of glass seal lips 12. Further, the lower surface of the bent portion 18 in the lower glass seal lip 12 is set so as to be positioned on or below the extension line of the lower surface of the extension flange portion 15.

  Further, a flocking layer 19 is formed on the surface of the pair of upper and lower glass seal lips 12 on the side of the door glass 6 by, for example, electrostatic flocking method, and these flocking layers 19 are directly pressed and slid on the door glass 6. Will be in touch.

  Further, the panel seal lip 13 further extended from the lower end of the extension flange portion 15 forming the mounting base portion 11 of the inside seal 10 is of a so-called cantilever support form, and the tip portion is anti-door inner. A bent portion 20 having a substantially U-shaped cross section is formed by being bent toward the panel 3 side, and a bent portion 20 having a substantially U-shaped cross section is brought into pressure contact or elastic contact with the door inner panel 3. This is intended to bring the panel seal lip 13 into contact with the door inner panel 3 without causing the leading end portion of the panel seal lip 13 to press-contact or elastically contact the door inner panel 3. A notch portion 13 a is formed at the base portion of the panel seal lip 13.

  FIG. 3 shows a perspective view of the inside seal 10 shown in FIG. 2 alone, and FIG. 4 shows a perspective view of the same portion as FIG. 3 after the inside seal 10 is attached to the trim flange portion 9.

  As apparent from FIGS. 3 and 4, the mounting base 11 in the inside seal 10, more specifically, the base portion 14 forming the mounting base 11, is provided with a plurality of longitudinal centers at predetermined pitches. A plurality of claw pieces 21 are formed so as to protrude by cutting and raising the whole material 16 in an upright posture. On the other hand, the trim flange portion 9 is formed with a plurality of rectangular slot portions 22 corresponding to the positions of the claw pieces 21. As shown in FIG. 5, the claw piece 21 on the inside seal 10 side is inserted into the slot portion 22 on the trim flange portion 9 side, and the base portion 14 on the inside seal 10 side is seated on the trim flange portion 9. In this state, as shown in FIG. 4, the inside seal 10 is firmly fixed to the trim flange portion 9 by bending each claw piece 21 so as to be in close contact with the back surface of the trim flange portion 9.

  In this case, as is apparent from FIG. 5, when the claw piece 21 on the inside seal 10 side is inserted into the slot portion 22 on the trim flange portion 9 side, the front end of the panel seal lip 13 is located The bending angle of the extension flange portion 15 with respect to the base portion 14 is adjusted so as not to interfere with the lower end (the imaginary line L1 in FIG. 5).

  More specifically, the bending angle of the extension flange portion 15 with respect to the base portion 14 is an obtuse angle, and when the inside seal 10 is attached to the trim flange portion 9, the front end of the panel seal lip 13 is below the lower end of the trim flange portion 9. It is supposed to be located in.

  According to the inside seal mounting structure thus configured, the door trim 7 in which the inside seal 10 is previously attached to the trim flange portion 9 as described above is provided with the inside seal 10 as shown in FIG. The trim flange portion 9 is attached to the door inner panel 3 so as to be inserted from above the door waist opening 5.

  At this time, the pair of upper and lower glass seal lips 12 are pressed against the door glass 6 while being deformed upward and exhibit the original sealing function, and the panel seal lip 13 is also deformed upward and the door is deformed. A relatively large gap between the trim flange portion 9 and the door inner panel 3 (door waist flange portion 4) can be shielded by being pressed against the inner panel 3. As described above, the pair of upper and lower glass seal lips 12 are bent or deformed with the bent portion 18 which is the connection portion with the respective root portion 17 as a bending fulcrum.

  In this case, since the metal core 16 is embedded in both the base portion 14 and the extension flange portion 15 forming the attachment base portion 11 of the inside seal 10, the extension flange portion 15 is included. The mounting base 11 has sufficient rigidity, and the panel seal lip 13 in a cantilevered form is further extended from the lower end of the extension flange 15 having sufficient rigidity.

  Therefore, as described above, even if the trim flange portion 9 attached to the inside seal 10 is inserted from above the door waist opening 5, as shown in FIG. 2, the trim flange portion 9 and the door inner panel The panel seal lip 13 is stabilized in the bending posture or the bending posture even though the gap between the panel seal lip 13 and the panel 3 is relatively large. The sealing performance by the seal lip 13 is also good. The behavioral stability of the panel seal lip 13 is particularly effective because the sealing state by the panel seal lip 13 cannot be visually confirmed once the door trim 7 is mounted.

  Moreover, the panel seal lip 13 itself is formed in a substantially U-shaped cross section, and the front end of the panel seal lip 13 is not brought into pressure contact with the door inner panel 3, but has a substantially U-shaped cross section. Since the bent portion 20 is pressed against the door inner panel 3 so as to form a so-called abdomen, not only the front end of the panel seal lip 13 is prevented from being caught but also the so-called wavy phenomenon at the front end of the panel seal lip 13 is prevented. Generation | occurrence | production can be prevented and it becomes possible to ensure the continuity and linearity of the seal line by the panel seal lip 13. In addition, since it is possible to absorb dimensional variations and installation accuracy variations of the inside seal 10 or the door trim 7, the sealing performance by the panel seal lip 13 is further improved.

  Further, when attention is paid to the posture in the physical distribution process such as component transportation by the inside seal 10 alone, for example, the posture as shown in FIG. In FIG. 6, the lower surface of the extension flange portion 15 and the vicinity of the base portion 17 of the lower glass seal lip 12 are accommodated in the component passing box 23 as seating portions, and the core material 16 is embedded so that the weight is increased. Since the center of gravity of the mounting base 11 having a large height is on the right side of the figure than the vicinity of the root portion 17 of the lower glass seal lip 12 functioning as the seating portion, the posture of the inside seal 10 is stabilized.

  In FIG. 6, even if a part of the flocked layer 19 of the lower glass seal lip 12 becomes a seating portion for the part-passing box 23, as shown in FIG. Since it does not function as a seal portion for the glass 6, there is no problem in terms of component quality.

  FIGS. 7 and 8 are views showing modifications of the above-described inside seal mounting structure, and the same reference numerals are given to portions common to FIG.

  In the modification shown in FIG. 7, a protrusion 25 is formed in a portion corresponding to the lower surface of the root portion 17 of the lower glass seal lip 12 in the inside seal 10.

  In the modification shown in FIG. 7, when the inside seal 10 is accommodated in the parts return box 23, the projection 25 serves as a seating part for the parts return box 23. Therefore, the same effect as that of the first embodiment is achieved. In addition, there is an advantage that the flocked layer 19 in the lower glass seal lip 12 which is functionally important in the distribution process can be protected.

  Further, in the modification shown in FIG. 8, the position of the base portion 17 on the lower glass seal lip 12 side with respect to the base portion 14 of the mounting base portion 11 is slightly changed compared to FIG. When the inside seal 10 is accommodated, the entire lower surface of the extension flange portion 15 is seated on the component passing box 23. In other words, the lower surface of the bent portion 18 in the lower glass seal lip 12 is set so as to be substantially located on the extension line of the lower surface of the extension flange portion 15.

  In the modification shown in FIG. 8, the entire surface of the extension flange portion 15 is seated on the part-passing box 23, so that the posture of the inside seal 10 in the physical distribution process is further stabilized.

DESCRIPTION OF SYMBOLS 1 ... Automotive door 3 ... Door inner panel 5 ... Door waist opening 6 ... Door glass 7 ... Door trim 9 ... Trim flange part 10 ... Inside seal 11 ... Mounting base 12 ... Glass seal lip 13 ... Panel seal lip 14 ... Base part DESCRIPTION OF SYMBOLS 15 ... Extension flange part 16 ... Core material 17 ... Root part 18 ... Bending part 20 ... Bending part 25 ... Protrusion part

Claims (5)

Of the door trim mounted on the door inner panel of an automobile door, it is bent so as to face the door waist opening and is attached to the trim flange located outside the door inner panel. An inside seal mounting structure that seals the sliding contact portion while being in sliding contact,
The inside seal is formed by projecting a glass seal lip in two steps from the plate-shaped mounting base fixed to the trim flange portion through a claw piece that protrudes and bends to the back surface of the trim flange portion toward the door glass side. On the other hand,
The mounting base portion is bent from the lower end of the base portion to the door inner panel side so as to overhang below the trim flange portion, and the tip is on the back surface of the trim flange portion. With the extension flange part protruding so as to extend to the door inner panel side than the nail piece after bending , both are formed as a substantially U-shaped section with an obtuse angle ,
The mounting base is provided with a core so as to extend from the base to the tip of the extension flange,
Furthermore, the tip of the extension flange, the mounting structure of the inside seal in a motor vehicle door, characterized in that are upward protruded panel seal lip pressed against the de Ain'napaneru.   The panel seal lip is formed to have a substantially U-shaped cross section by bending the tip portion toward the door inner panel side, and the bent portion having a substantially U-shaped cross section is pressed against the door inner panel. The inside seal mounting structure for an automobile according to claim 1, wherein the inside seal mounting structure is configured as described above. While extending the base portion in a substantially right angle direction from the lower end of the base portion,
The lower glass seal lip is formed so as to protrude obliquely upward from the tip of this root part,
3. The inside of an automobile door according to claim 1 or 2, wherein a connecting portion between the root portion and the lower glass seal lip is a bent portion serving as a bending fulcrum of the lower glass seal lip. Seal mounting structure.   4. The inside seal mounting structure for an automobile door according to claim 3, wherein the lower surface of the bent portion is set to be positioned on or below the extension line of the lower surface of the extension flange portion.   5. A structure for mounting an inside seal in an automobile door according to claim 4, wherein a projection is provided on the lower surface of the bent portion.

Images