JP2010143470A - Automobile door sash structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door sash structure of an automobile which does not generate a plosive sound when the door is closed.
A door weather strip that is attached to a sash 2 of an automobile entrance / exit door and elastically contacts the body panel, and an opening seal that is attached along the door opening edge of the body panel and elastically contacts the door sash 2 is provided. In the structure of the double seal structure in which the corner piece 3 with which the opening seal elastically contacts is provided at the corner portion 2, the groove portion 4 that crosses the elastic contact surface S with which the opening seal elastically contacts is provided in the corner piece 3, and when the door is closed. Air is released from the groove 4.
[Selection] Figure 7

Description

  The present invention relates to a door sash structure in which a corner piece for improving a sealing property is provided at a corner portion of a sash of a passenger door of an automobile.

  This will be described with reference to FIGS. Conventionally, an automobile includes a door weather strip 10 attached to the door sash 2 and elastically contacting the body panel 20, and an opening seal 30 attached along the door opening edge of the body panel 20 and elastically contacting the door sash 2. Many so-called double seal structures are used.

In such a double seal structure, a corner piece 41 is attached to the corner portion of the door sash 2 in order to increase the elastic contact area with the opening seal 30 and to ensure better sealing performance (for example, Patent Document 1). reference).
JP 2007-331526 A

  However, such a conventional double seal structure has a problem that a popping sound is generated when the door is closed. This occurs when air is trapped in the gap G shown in FIGS. 3 to 5 and the door weather strip 10 and the opening seal 30 are vibrated by the compressed air rapidly flowing out at the moment when the door is completely closed. It is. This phenomenon appears more remarkably by the conventional door sash structure 40 provided with the corner piece 41 for increasing the elastic contact area with the opening seal 30.

  The present invention was devised to solve these problems, and an object of the present invention is to provide a door sash structure that does not generate a plosive sound when the door is closed.

  This will be described with reference to FIGS. 1, 3, and 5 to 7. The automobile door sash structure 1 according to claim 1 is attached to a door sash 2 of an automobile, and is attached along a door weather strip 10 that elastically contacts the body panel 20 and a door opening edge of the body panel 20. An opening seal 30 that elastically contacts the sash 2 is provided, and a corner piece 3 that elastically contacts the opening seal 30 is provided at a corner portion of the door sash 2, and the opening is provided at the corner piece 3. A groove portion 4 is provided across the elastic contact surface S with which the seal 30 elastically contacts, and air (compressed air) escapes from the groove portion 4 when the door is closed.

  The automobile door sash structure 1 according to claim 2 is attached to a door sash 2 of an automobile and is attached along a door weather strip 10 that elastically contacts the body panel 20 and a door opening edge of the body panel 20. An opening seal 30 that elastically contacts the sash 2 is provided, and a corner piece 3 that elastically contacts the opening seal 30 is provided at a corner portion of the door sash 2, and the opening is provided at the corner piece 3. A groove 4 is provided across the elastic contact surface S with which the seal 30 elastically contacts, and the groove 4 is formed in a bent shape so that air (compressed air) escapes from the groove 4 when the door is closed. is there. The bent shape means a state other than a straight shape, and includes, for example, a dogleg shape, an S shape, or a zigzag shape.

  The automobile door sash structure 1 according to claim 3 is the invention according to claim 1 or 2, wherein the corner piece 3 is made of resin.

  The automobile door sash structure 1 according to claim 4 is characterized in that, in the invention according to claims 1 to 3, the depth and width of the groove portion 4 are set to about 1 mm.

  The automobile door sash structure 1 according to claim 1 is provided with a door weather strip 10 and an opening seal 30, and a double seal structure in which a corner piece 3 with which the opening seal 30 elastically contacts is provided at a corner portion of the door sash 2. The corner piece 3 is provided with a groove portion 4 that traverses the elastic contact surface S with which the opening seal 30 elastically contacts, and air is allowed to escape from the groove portion 4 when the door is closed, thereby preventing the generation of a burst sound when the door is closed. Can do.

  That is, as described above, the plosive sound is generated when the door weather strip 10 or the opening seal 30 vibrates due to the compressed air that rapidly flows out after the air is confined in the gap G shown in FIGS. However, in the present invention, the compressed air is released from the groove 4 as shown by the arrow in FIG. 8, so that the door weather strip 10 and the like do not vibrate, and thus no burst sound is generated.

  Note that the air in the gap G escapes from the groove 4 while being compressed by closing the door, and thus functions as a cushion when the door is closed. Therefore, the door closing sound is reduced and good door closing performance is exhibited.

  The automobile door sash structure 1 according to claim 2 can prevent the generation of a plosive sound when the door is closed, similarly to the invention according to claim 1. Moreover, since the groove part 4 is formed in a bent shape (that is, the groove part 4 is not linear), it is possible to suppress the passage of sound and ensure excellent sound insulation. Further, for the same reason, water can be prevented from entering.

  The automobile door sash structure 1 according to the third aspect exhibits the same effects as the inventions according to the first and second aspects. Moreover, since the corner piece 3 is made of resin, the groove portion 4 can be easily formed as compared with the case of metal. Therefore, productivity can be improved.

  The automobile door sash structure 1 according to the fourth aspect exhibits the same effects as the invention according to the first to third aspects. In addition, since the depth and width of the groove 4 are set to about 1 mm, it is possible to release compressed air when the door is closed, to ensure good sound insulation, and to prevent water from entering. it can.

  Embodiments of an automobile door sash structure 1 according to the present invention are shown in FIGS. 1, 3, 4, 6 to 8. The door sash structure 1 is attached to a door sash 2 of an automobile, and a door weather strip 10 elastically contacting the body panel 20, and an opening seal 30 attached along the door opening edge of the body panel 20 and elastically contacting the door sash 2. In a double seal structure. Further, the door sash structure 1 includes a corner piece 3 with which an opening seal 30 is elastically contacted at a corner portion of the door sash 2.

  The door weather strip 10 includes an attachment base 11 assembled to a retainer 5 having a substantially U-shaped cross section formed on the door sash 2, a hollow seal portion 12 and an outer lip 13 that elastically contact the body panel 20. The opening seal 30 is in contact with the flange portion 21 formed along the door opening edge of the body panel 20 and has a substantially U-shaped cross section, and the straight portion elastically contacts the door sash 2 and the corner portion has a corner. A hollow elastic contact portion 32 elastically contacting the piece 3, an interior trim 33 contacting the interior material M, and an engaging lip 34 engaging with the flange 21 are provided.

  And the groove part 4 which crosses the elastic contact surface S (shaded part of FIG. 7) which the opening seal 30 elastically contacts is provided in the indoor side surface of this corner piece 3, and air (compressed air) is supplied from this groove part 4 at the time of a door closing. I try to escape. In the present embodiment, the corner piece 3 is formed in a substantially triangular shape, and the groove portion 4 is provided so as to cross obliquely up and down from the substantially upper portion 3a contacting the door sash 2 to the substantially lower portion 3b. .

  Since the groove 4 is formed, the compressed air can be released from the groove 4 when the door is closed. Therefore, the door weather strip 10 and the opening seal 30 do not vibrate, thereby preventing the generation of a plosive sound. .

  The air in the gap G slowly escapes from the groove 4 while being compressed by closing the door. Accordingly, when the door is closed, it functions as a cushion, so that a so-called door closing sound can be reduced and a good door closing property can be obtained.

  Moreover, in this embodiment, the groove part 4 is formed in bending shape (zigzag shape). Thereby, since the wall surface 4a can be formed, it is possible to suppress the passage of sound from the inside and outside of the vehicle and ensure excellent sound insulation as compared with the case where the wall surface 4a is formed in a straight line. Can be prevented.

  Furthermore, in this embodiment, the corner piece 3 is made of resin. Thereby, compared with the case where it is metal, the groove part 4 can be formed easily and productivity can be improved. The corner piece 3 can be formed of a material other than resin (for example, metal).

  Further, the depth and width of the groove 4 in the present embodiment is set to about 1 mm. Therefore, the compressed air when the door is closed can be released well, good sound insulation can be secured, and water can be prevented from entering. The depth and width of the groove 4 can be 1 mm or more or less.

  In the present embodiment, the number of the groove portions 4 is one, but the number is not limited. For example, a plurality of grooves can be formed as shown in FIG. Moreover, as shown in FIG. 10, it can be made into S shape. Moreover, although the groove part 4 is formed in the form which crosses the corner piece 3 up and down diagonally, it is not limited to this, What is necessary is just to cross the elastic contact surface S of the corner piece 3. FIG. Therefore, for example, as shown in FIG. 11, the corner piece 3 may be configured not to reach the upper end (the oblique side end 3 a).

It is the side view which looked at the left front door of the motor vehicle provided with the door sash structure which concerns on this invention and a prior art example from the vehicle exterior. It is a principal part expansion perspective view which shows the door sash structure which concerns on the prior art example in the state which looked at the door of FIG. 1 from the room inner side. It is the XX sectional view taken on the line of FIG. It is the YY sectional view taken on the line of FIG. 1 in a prior art example. FIG. 2 is a sectional view taken along line ZZ in FIG. 1. It is a principal part expansion perspective view which shows the door sash structure which concerns on embodiment of this invention in the state which looked at the door of FIG. 1 from the room inner side. FIG. 7 is an enlarged side view of the door sash structure shown in FIG. 6. It is the PP sectional view taken on the line of FIG. It is a side view which shows the other form of the corner piece in this invention. It is a side view which shows the other form of the corner piece in this invention. It is a side view which shows the other form of the corner piece in this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door sash structure 2 Door sash 3 Corner piece 3a Substantially upper part 3b Substantially lower part 4 Groove part 4a Wall surface 5 Retainer 10 Door weather strip 11 Mounting base 12 Hollow seal part 13 Outer lip 20 Body panel 21 Flange 30 Opening seal 31 Base part 32 Hollow elastic contact 33 Internal trim 34 Locking lip 40 Door sash structure 41 Corner piece G Gap M Interior material S Elastic contact surface

Claims (4)

  A door weather strip (10) attached to the door sash (2) of the automobile and elastically contacting the body panel (20), and an opening seal (30) attached along the door opening edge of the body panel and elastically contacting the door sash (30) ) And a door sash structure in a double seal structure in which a corner piece (3) with which the opening seal is elastically contacted is provided at a corner portion of the door sash, wherein the opening seal is elastically contacted with the corner piece. An automobile door sash structure is provided with a groove (4) crossing the contact surface (S), and air escapes from the groove when the door is closed.   A door weather strip (10) attached to the door sash (2) of the automobile and elastically contacting the body panel (20), and an opening seal (30) attached along the door opening edge of the body panel and elastically contacting the door sash (30) ) And a door sash structure in a double seal structure in which a corner piece (3) with which the opening seal is elastically contacted is provided at a corner portion of the door sash, wherein the opening seal is elastically contacted with the corner piece. An automobile door sash structure is provided with a groove (4) crossing the contact surface (S), the groove is formed in a bent shape, and air escapes from the groove when the door is closed.   The automobile door sash structure according to claim 1 or 2, wherein the corner piece (3) is made of resin.   The automobile door sash structure according to claim 1, 2 or 3, wherein the depth and width of the groove (4) are set to about 1 mm.

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