JP2014008943A - Structure of vehicular resin trim - Google Patents

Abstract

Disclosed is a resin trim structure for a vehicle which can prevent discoloration and suppress vibration noise and can be attached with a pad or the like.
A vibration preventing member 41 is formed on the back surface 18b of the door trim 13 so as to abut against the inner panel. The vibration preventing member 41 projects in a direction substantially perpendicular to the back surface 18b and parallel to the inner panel. Provided with at least a pair of plate-like portions 43, and at the tip portions of the pair of plate-like portions 43, there are provided elastic portions 45 connected to both of the tip portions and elastically contacting the inner panel so as to be elastically deformable, The pair of plate-like portions 43 and the elastic portion 45 are integrally formed with the door trim 13.
[Selection] Figure 7

Description

  The present invention relates to a structure of a resin trim for a vehicle that is attached to an inner panel of a vehicle such as an inner panel of an automobile door.

  In vehicles such as automobiles, the interior of doors such as side doors and back doors occupies a large area in the interior of the vehicle and is an important element that constitutes the interior design. A door trim is attached to give a feeling. The door trim is integrally formed of, for example, synthetic resin, and is fixed to the inner panel of the door with a clip provided on the door trim.

  Such door trims generate so-called chatter noise (vibration noise) when the door trim and inner panel come into contact with each other due to the vibration of the engine, vibration during driving, and vibration during opening and closing of the door. There was a possibility. For this reason, a sponge member has been affixed to the back surface (the vehicle outer side) of the door trim.

  However, the door trim with the sponge member affixed to the back side needs to be manufactured by assembling separate members, which increases the work process and increases the cost for the assembly work. was there.

  For this reason, an integrally formed door trim as shown below has been proposed. For example, as shown in FIG. 9A, the door trim shown in Patent Document 1 is provided with a protruding piece 105 that protrudes from the back surface 101b toward the inner panel 103 on the back surface 101b of the door trim 101. Even when the door trim 101 and the inner panel 103 vibrate, the chattering noise is suppressed by causing the protruding piece 105 to elastically contact the inner panel 103.

  Further, for example, in Patent Document 2, a thin and thin elastically deformable protruding piece is provided on the back surface of a resin component toward the panel, and the protruding piece is attached to the panel even when the resin component and the panel vibrate. The occurrence of chattering noise is suppressed by making it contact elastically.

  Further, for example, in the door trim shown in Patent Document 3, a rib is provided on the back surface of the door trim so as to go around the end portion of the inner panel and come into contact with the end portion, and the rib contacts the end portion. An abutting surface to be in contact is formed, and even when the door trim and the inner panel vibrate, the chattering noise is suppressed by bringing the abutting surface into contact with the inner panel.

  As described above, since the door trim and the resin parts shown in Patent Document 1 to Patent Document 3 are formed with the projecting pieces and ribs integrally with the door trim, the work of assembling another member such as a sponge member is not required. Cost reduction can be achieved.

Japanese Patent No. 389386 Japanese Patent No. 3245317 No. 7-52737

  However, the conventional door trim 101 disclosed in Patent Document 1 has a protruding piece as shown in FIG. 9B when a strong impact or force is applied to the door trim 101 such as when the door is opened or closed. Since the entire 105 is bent and deformed greatly, the base end portion 105a of the projecting piece 105 is plastically deformed, and the surface 101a on the vehicle interior side of the door trim 101 is discolored along with the plastic deformation, and the appearance of the door trim 101 is displayed. There was a possibility that it might fall.

  Further, when a strong impact or force is applied to the door trim 101, such as when the door is opened or closed, and the base end portion 105a of the protruding piece 105 is plastically deformed, the vibration of the door trim 101 and the inner panel 103 is prevented. There was a possibility that the function of suppressing the generation of chatter noise would be greatly reduced.

  In addition, since the cantilever-shaped projecting piece 105 tends to concentrate stress on the base end portion 105a, the elasticity of the projecting piece 105 gradually decreases over a long period of time, and the door trim 101 and the inner panel 103 There was a possibility that the function of suppressing the generation of chatter noise against vibration would be reduced.

  In addition, the conventional protrusion shown in Patent Document 2 is tapered and thin-walled and has low elasticity, so that it is possible to suppress the occurrence of chatter noise against micro vibrations. There is a problem that it is difficult to suppress the occurrence of chattering noises such as the above.

  In addition, because the elasticity of the projecting piece that is tapered and thin is low, the elasticity of the projecting piece decreases when a strong impact or force is applied, such as when opening and closing the door, and after a long period of time. As a result, there is a problem that the function of suppressing the generation of chatter noise with respect to the vibration of the resin product and the panel is deteriorated.

  Further, the conventional door trim shown in Patent Document 3 has a complicated shape in which the ribs wrap around the end portion of the inner panel and come into contact with the end portion, thereby further suppressing chatter noise. In such a case, there is a problem that a pad or the like cannot be attached to the rib.

  The present invention aims to solve such problems. That is, the present invention can prevent the discoloration of the surface of the resin trim for a vehicle, can suppress vibration noise even against a strong impact, and can be attached with a pad or the like. The purpose is to provide a structure.

  In order to solve the above problems and achieve the object, the structure of the resin trim for a vehicle according to the present invention described in claim 1 is a structure of the resin trim for a vehicle attached to an inner panel of the vehicle, A vibration preventing member that contacts the inner panel is formed on the back surface of the resin trim for the vehicle, and the vibration preventing member projects in a direction substantially perpendicular to the back surface and parallel to the inner panel. Provided with at least a pair of plate-like portions, and provided at the tip portions of the pair of plate-like portions are elastic portions that are connected to both of the tip portions and elastically deformably contact the inner panel; and The pair of plate-like portions and the elastic portion are integrally formed together with the vehicle resin trim.

  The structure of the resin trim for a vehicle of the present invention described in claim 2 is the structure of the resin trim for a vehicle according to claim 1, wherein the elastic portion is connected between both the connecting portions with the pair of plate-like portions. Is formed in a curved shape protruding toward the inner panel.

  The structure of the resin trim for a vehicle of the present invention described in claim 3 is the structure of the resin trim for a vehicle according to claim 1 or 2, wherein the pair of plate-like portions and the elastic portion are provided. The connecting portion is easily deformed.

  The structure of the resin trim for a vehicle of the present invention described in claim 4 is the structure of the resin trim for a vehicle according to any one of claims 1 to 3, wherein the pair of plate-like portions are provided. When the provided resin trim is moved in the direction of the inner panel, after the elastic portion elastically contacted with the inner panel is deformed, the front ends of the pair of plate-like portions are moved to the inner panel. It is characterized by striking the panel.

  According to the structure of the vehicle resin trim according to the first aspect of the present invention, the pair of plate-like portions are substantially perpendicular to the back surface of the vehicle resin trim and parallel to the inner panel. Since the elastic part protruding to the inner panel and elastically contacting the inner panel is provided at the tip of the pair of plate-like parts, the elastic part elastically deforming in response to vibration absorbs the vibration of the vehicle resin trim, and The plate-like portion supports the elastic portion. Thus, since the elastic part supported by the pair of plate-like parts elastically deforms and absorbs vibration, the deformation of the pair of plate-like parts can be suppressed, and the design surface of the resin trim for vehicles is discolored. Can be suppressed.

  In addition, since the elastic part is connected to both of the tip parts of the pair of plate-like parts, the mechanical strength is greatly improved compared to the case of a cantilevered type, and against strong impacts such as when opening and closing doors etc. In addition, it is possible to suppress generation of vibration sound and hitting sound.

  In addition, since the elastic part is connected to both ends of the pair of plate-like parts, the mechanical strength is greatly improved compared to the cantilever type, the durability is improved, and the drop in elasticity over time is greatly reduced. The effect of suppressing the generation of vibration sound and hitting sound can be sustained over a long period of time.

  In addition, since the elastic portion is connected to both of the tip portions of the pair of plate-like portions, in order to further suppress the generation of vibration noise and hitting sound, the surface of the elastic portion is for absorbing vibration. A pad or the like can be attached.

  In addition, since the pair of plate-like portions and the elastic portion are integrally formed together with the vehicle-made resin trim, it is possible to reduce costs without assembling separate members or increasing the number of parts.

  According to the structure of the resin trim for a vehicle according to the second aspect of the present invention, the space between the connecting portions of the elastic portion and the pair of plate-like portions is formed in a curved shape protruding toward the inner panel. Therefore, the elasticity of the elastic part can be improved, and the generation of vibration sound and hitting sound can be more effectively suppressed.

  According to the structure of the resin trim for a vehicle according to the third aspect of the present invention, since the connecting portion between the pair of plate-like portions and the elastic portion is easily deformed, the elastic deformation of the elastic portion is further facilitated. At the same time, the elasticity of the elastic portion can be further improved, and the generation of vibration noise and hitting sound can be further effectively suppressed.

  Further, since the connecting portion between the pair of plate-like portions and the elastic portion is easily deformed, when the elastic portion comes into contact with the inner panel and is elastically deformed flat, both of the tip portions of the pair of plate-like portions are It becomes easy to deform in a direction away from each other, and by making both of the distal end portions of the pair of plate-like portions easily deform in a direction away from each other, the deformation stress of the distal end portion is applied to the base end portion of the pair of plate-like portions. Can be suppressed, and discoloration of the design surface of the vehicle resin trim can be further suppressed.

  According to the structure of the resin trim for a vehicle of the present invention described in claim 4, when the action of the resin trim for the vehicle moving in the direction of the inner panel occurs, that is, opening / closing operation or traveling when the door is opened / closed. When the vehicular resin trim comes into contact with the inner panel due to vibrations of the time, the elastic portions that are elastically contacted with the inner panel are deformed, and then the tip portions of the pair of plate-shaped portions abut against the inner panel. Therefore, when a large load that cannot be absorbed by the elastic portion is applied, the tip portions of the pair of plate-like portions come into contact with the inner panel, and the pair of plate-like portions support the inner panel. Since the pair of plate-like portions support the inner panel in this way, the deformation of the elastic portion can be restricted when the tip ends of the pair of plate-like portions hit the inner panel, and the elastic portion is prevented from being damaged. be able to.

  In addition, even when a large load that cannot be absorbed by the elastic portion is applied from the design surface side of the vehicle resin trim, the pair of plate-like portions support the inner panel, so the vehicle resin trim is recessed. Can be suppressed, and the rigidity of the resin trim for vehicles can be improved.

It is a side view of a motor vehicle. It is the figure which looked at the front side door from the vehicle inside. It is the perspective view which looked at the inner panel from the vehicle inside. It is the perspective view which looked at the resin trim for vehicles concerning one Embodiment of this invention from the vehicle inner side. It is the figure which looked at the resin trim for vehicles shown in FIG. 4 from the vehicle outer side. It is sectional drawing which follows the II-II line of the front side door shown in FIG. It is sectional drawing which follows the III-III line of the resin-made trims for vehicles shown in FIG. It is sectional drawing similar to FIG. 7 which shows the elastic contact state of the resin trim for vehicles, and an inner panel. (A) is a diagram showing an initial state, (B) is a diagram showing a state where a load is applied, and (C) is a diagram showing a state where a large load is applied. It is sectional drawing which shows the contact state of the resin-made trims for vehicles of a prior art example, and an inner panel. (A) is a figure which shows an initial state, (B) is a figure which shows the state in which the load acted.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. The embodiments of the present invention described below are merely representative embodiments of the present invention, and the present invention is not limited to the embodiments. Therefore, the present invention can be implemented with various modifications within the scope not departing from the gist of the present invention, that is, those that can be easily conceived by those skilled in the art, substantially the same, and so-called equivalent ranges.

  1 is an external view of the side of the automobile 1, FIG. 2 is a view of the front side door 2 viewed from the inside of the vehicle, FIG. 3 is a perspective view of the inner panel 15 of the front side door 2, and FIG. Fig. 5 is a perspective view of the interior side of a door trim 13 as a resin trim for a vehicle according to an embodiment of the invention, Fig. 5 is a view of the door trim 13 according to an embodiment of the present invention as viewed from the vehicle exterior, and Fig. 6 is a view in Fig. 2. FIG. 7 is a cross-sectional view taken along line III-III in FIG.

  In the following description, the front portion of the vehicle 1 relative to the front-rear direction is referred to as the front side, and the rear portion of the vehicle 1 relative to the front-rear direction is referred to as the rear side. A portion where the relative position is closer to the inside of the vehicle is referred to as the vehicle inner side, and a portion where the relative position with respect to the vehicle width direction of the automobile 1 is closer to the vehicle outer side is referred to as the vehicle outer side.

  As shown in FIG. 1, a front side door 2 and a rear side door 3 are provided to be openable and closable at the side of the automobile 1, and a back door 4 is provided to be openable and closable at the rear of the automobile 1. . As shown in FIG. 2, the front side door 2 is a so-called press door, and as shown in FIG. 2, a door panel 11 in which a window opening is formed, and a vehicle resin attached to the vehicle interior below the window opening of the door panel 11. And a door trim 13 as a trim. A window glass 17 is provided at the window opening so as to be movable up and down, and a garnish 12 for covering a mirror mounting screw is provided at the front side of the window opening.

  Further, as shown in FIG. 6, an inner weather strip 33 is provided in the window opening. The inner weather strip 33 is made of, for example, a synthetic resin or an elastic material excellent in weather resistance and water-stopping properties such as ethylene-propylene-diene rubber (EPDM) and olefin-based thermoplastic elastomer (TPO).

  As shown in FIGS. 1 and 3, the door panel 11 includes an inner panel 15 and an outer panel 16 fixed to the outer side of the inner panel 15. The inner panel 15 and the outer panel 16 are formed by pressing an automotive thin steel sheet such as a cold-rolled steel sheet for automobiles or a high-tensile steel sheet for automobiles into a required shape. Is assembled and configured.

  Although the present embodiment describes the front side door 2, the structure of the door trim 13 as a vehicle resin trim of the present invention to be described later is naturally the rear side door 3 and the back door 4. It can be applied to door trims that are attached to the door.

  As shown in FIG. 3, the inner panel 15 has a window frame 31 in which a window opening is formed, a plurality of clip holes 15a into which clips (see FIG. 5) 35 of a door trim 13 described later are engaged, and a speaker. An opening for attaching the baffle plate and various openings for reducing the weight are provided.

  The door trim 13 is integrally formed of, for example, a polyolefin resin such as polypropylene resin. As shown in FIGS. 4 and 5, the door trim 13 includes an armrest 19 that protrudes toward the inside of the vehicle, an ornament 29 that protrudes toward the inside of the vehicle, a pocket 30 that can temporarily hold small items, and an impact absorbing pad. 28, a clip 35 that engages with the clip hole 15 a of the inner panel 15, and a vibration preventing member 41 that suppresses generation of vibration sound of the door trim 13.

  The armrest 19 is formed separately from the armrest body 23 formed by expanding the board 18 of the door trim 13 toward the vehicle interior, and is fixed to the upper end of the armrest body 23. A front armrest portion 25 and a rear armrest portion 27 on which an occupant's arm is placed are provided. The upper end portion of the armrest 19 is opened upward, and the front armrest portion 25 and the rear armrest portion 27 are fitted and fixed in the opening.

  The front armrest portion 25 is formed longer in the vehicle front-rear direction than the rear armrest portion 27. A concave pull handle 21 is formed at the rear end portion of the front armrest portion 25 and is held by an occupant when the front side door 2 is opened and closed. On the front side of the pull handle 21 of the front armrest portion 25, a switch assembly 25a for operating a door lock and an electric opening / closing window glass is assembled.

  The ornament 29 is configured separately from the armrest main body 23, is attached above the armrest main body 23, and is attached to the board 18 by heat caulking with a boss protruding from the back surface (the vehicle outer side) of the door trim 13. It is fixed to. The ornament 29 is integrally provided with a rear armrest 27, and the rear armrest 27 is formed to extend from the lower end of the rear end of the ornament 29 to the vehicle interior side. The ornament 29 is a decorative member and is colored in a color different from that of the armrest main body 23, the front armrest 25, and the rear armrest 27.

  The pocket 30 is configured separately from the armrest main body 23, is attached to the lower side of the armrest main body 23, and is fixed to the board 18 by thermal caulking with a boss protruding from the back surface of the door trim 13. ing.

  The shock absorbing pad 28 is configured separately from the board 18 of the door trim 13, and is attached below the rear end of the back surface of the door trim 13, and by thermal caulking with a boss protruding from the back surface of the door trim 13. , Fixed to the board 18. The shock absorbing pad 28 is located on the side of the waist of the occupant seated on the seat. The rear side of the shock absorbing pad 28 is inclined upward and is formed in an arc shape along a gentle arc-shaped rear end edge of the door trim 13.

  The front side of the shock absorbing pad 28 is opposed to the rear end portion of the pocket 30 in the vicinity. Further, the shock absorbing pad 28 is formed by combining plate-like members formed in a plate shape with a synthetic resin such as polypropylene resin in a lattice shape, and an impact such as hard and soft foamed polyurethane (urethane foam). A well-known thing, such as what combined an absorber, can be adopted.

  The clip 35 is integrally formed of, for example, polyacetal resin (POM resin). The clip 35 includes a fitting portion that fits into the clip mounting seat of the door trim 13 and an engaging portion that engages with the clip hole 15 a of the inner panel 15, and is fixed to the clip mounting seat of the door trim 13. Has been. Therefore, by engaging the clip 35 with the clip hole 15 a of the inner panel 15, the door trim 13 is attached and fixed to the inner panel 15.

  As shown in FIG. 5, the vibration preventing member 14 is provided at an upper portion slightly rearward from the center portion of the back surface 18 b of the door trim 13. As shown in FIG. 6, the vibration preventing member 41 is formed so as to protrude from the rear surface 18 b of the door trim 13 so as to abut on the inner surface 15 c of the inner panel 15. The vibration preventing member 41 is integrally formed with the board 18 of the door trim 13.

  5 illustrates the door trim 13 provided with only one vibration preventing member 41, and a plurality of vibration preventing members 41 are provided in the vicinity of the clip mounting seat to which the clip 35 is fitted. The vibration preventing member 41 can be provided at a place where the door trim 13 easily vibrates, or a plurality of vibration preventing members 41 can be provided around a place where the occupant pushes by hand when the door is opened and closed. That is, a plurality of vibration preventing members 41 can be provided at appropriate positions depending on the thickness, shape, and clip mounting seat of the door trim 13.

  As shown in FIGS. 6 and 7, the vibration preventing member 41 protrudes from the vehicle outer surface of the board 18 of the door trim 13, that is, the rear surface 18 b toward the vehicle inner surface (see FIG. 8) 15 c of the inner panel 15. A pair of plate-like portions 43 and an elastic portion 45 connected to both tip portions of the pair of plate-like portions 43.

  The vibration preventing member 41 is set to a protruding length L1 from the back surface 18b of the board 18 to the tip of the vibration preventing member 41. This protrusion length L1 is a protrusion length in an initial state when the vibration preventing member 41 is integrally formed with the door trim 13, that is, a state before the door trim 13 is attached to the inner panel 15. The protrusion length L1 is a protrusion length that can elastically contact the vibration preventing member 41 with the inner surface 15c of the inner panel 15 when the door trim 13 is attached to the inner panel 15. is there.

  The pair of plate-like portions 43 are formed to protrude from the back surface 18 b of the board 18 of the door trim 13 toward the inner surface 15 c of the inner panel 15. The plate 18 protrudes in a substantially vertical direction with respect to the back surface 18b of the board 18, and both plate-like portions 43 are parallel to each other. Specifically, the two plate-like portions 43 are formed substantially in parallel to have a draft angle necessary for molding. Further, both plate-like portions 43 are formed substantially in parallel with each other in a cross section parallel to the elastic portion 45.

  Further, in the pair of plate-like portions 43, the distance D between the two plate-like portions 43 is set to an interval that allows easy elastic deformation of the elastic portion 45, and the protruding length K of both the plate-like portions 43 is The protrusion length is set to allow elastic deformation so as to allow deformation of the elastic portion 45.

  That is, when the door trim 13 is attached to the inner panel 15 and when the door trim 13 attached to the inner panel 15 is vibrated, the pair of plate-like portions 43 are arranged so that the elastic portion 45 is a surface on the inner side of the inner panel 15. When elastically deforming by elastic contact with 15c, the base end sides of the pair of plate-like portions 43 are not deformed, and are formed with an interval D and a protruding length K that allow deformation of the elastic portion 45.

  More specifically, the distance D between the two plate-like portions 43 is such that when the elastic portion 45 is elastically deformed, the distal end sides of the two plate-like portions 43 are separated from each other as the elastic portion 45 is elastically deformed. In addition to being able to be elastically deformed, the elastic deformation of the distal end side affects the base end side of the two plate-like portions 43, and the design surface 18a of the board 18 of the door trim 13 has an interval that does not change color. .

  Further, the protruding length K of the two plate-like portions 43 is elastically deformed in the direction in which the distal end portions of the two plate-like portions 43 are separated from each other when the elastic portions 45 are elastically deformed. In addition, the elastic deformation of the front end side affects the base end side of both plate-like portions 43, and the design surface 18a of the board 18 of the door trim 13 has a protruding length that does not change color.

  That is, the distance D and the protruding length K between the two plate-like portions 43 are such that the influence of the elastic deformation of the elastic portion 45 does not reach the design surface 18 a of the board 18 of the door trim 13. Since it is only necessary to prevent discoloration of the design surface 18a, the thickness of the board 18 of the door trim 13, the thickness of the pair of plate-like portions 43, the thickness or arc shape of the elastic portion 45 described later, the board 18 Depending on the distance between the inner panel 15 and the inner panel 15, the distance D and the protrusion length K described above can be changed as appropriate in addition to those shown in FIG.

  The elastic part 45 is connected to both of the tip parts of both plate-like parts 43, and the connected part is a connecting part 46. The elastic portion 45 is formed in a curved shape that protrudes toward the inner panel 15 between the connecting portions 46 of the elastic portion 45 and the pair of plate-like portions 43.

  In other words, the elastic portion 45 is formed in a state of being erected on the tip portions of both plate-like portions 43 so as to connect the connecting portions 46 arranged in parallel. In the embodiment of the present invention, an example of the elastic portion 45 having a uniform thickness is shown. However, a portion of the elastic portion 45 may be formed thin to improve elasticity.

  The protrusion amount H of the elastic portion 45 is set to a protrusion amount at which the elastic portion 45 always elastically abuts against the vehicle inner surface (see FIG. 8) 18c of the inner panel 15 when the door trim 13 is attached to the inner panel 15. Has been. Further, the protruding amount H of the elastic portion 45 can receive the load to a certain extent even when a relatively large load acts on the door trim 13 such as when the front side door 2 is opened and closed (by elastic deformation). Can be absorbed).

  In each of the connecting portions 46, the elastic portion 45 is easily deformed into a flat shape when the elastic portion 45 abuts against the inner panel 15, and both the plate-like portions 43 of the pair of plate-like portions 43 are provided. An easily deformable portion 47 is provided for facilitating deformation in a direction in which both of the tip portions are separated from each other.

  The easily deformable portion 47 is provided inside the connection portion 46 and surrounded by the plate-like portion 43 and the elastic portion 45, and is formed in a groove shape over the entire width of the elastic portion 45 or the plate-like portion 43. It has a flexible structure that can be easily deformed. Note that the easily deformable portion 47 may be formed by thinning a part of the connecting portion 46 in place of the concave groove shape.

  As described above, since the easily deformable portion 47 is provided in the connecting portion 46, the connecting portion 46 acts like a hinge, facilitates elastic deformation of the elastic portion 45, and effectively absorbs vibration of the door trim 13. can do.

  In addition, since the curved elastic portion 45 is connected to both of the tip portions of the pair of plate-like portions 43, when a strong force is applied to the door trim 13 such as when the door is opened and closed, the elastic portion 45 is After elastically deforming and receiving part of the force and elastically deforming until the elastic portion 45 becomes flat, the tip portions (connecting portions 46) of the pair of plate-like portions 43 abut against the inner panel 15. For this reason, the pair of plate-like portions 43 can receive force with high rigidity, prevent further movement of the door trim 13 to the inner panel 15 side, the board 18 of the door trim 13 is deformed, and the design surface 18a. Can be prevented from discoloring.

  Next, in the structure of the door trim 13 according to the embodiment of the present invention configured as described above, refer to FIGS. 8A to 8C for a form in which the vibration of the door trim 13 is absorbed by the vibration preventing member 41. To explain.

  As shown in FIG. 8A, in a state where the door trim 13 is attached to the inner panel 15, the elastic portion 45 of the vibration preventing member 41 abuts on the inner surface 15 c of the inner panel 15. At this time, since the protrusion length of the vibration preventing member 41 is a protrusion length L2 slightly shorter than the protrusion length L1 in the initial state, the elastic portion 45 elastically contacts the inner surface 15c of the inner panel 15. .

  In this case, since the contact state is maintained, it is possible to reliably prevent the vibration sound (billing sound) of the door trim 13 that repeats contact and separation. Moreover, even if it is somewhat separated, the elastic portion 45 can be softly brought into contact with the inner panel 15 at the time of re-contact.

  For this reason, the vibration preventing member 41 effectively absorbs relatively small vibrations such as engine vibrations and vibrations during traveling, and effectively suppresses the generation of vibration sounds (chatting noises) of the door trim 13. Further, since the elastic portion 45 elastically contacts the inner panel 15 and receives a force, the contact sound (sounding sound) due to the vibration of the door trim 13 is suppressed. Furthermore, since the elastic part 45 is always in contact with the inner panel 15, the vibration of the door trim 13 itself is absorbed.

  Further, as shown in FIG. 8B, in a state where a relatively large vibration or a large load is applied to the door trim 13, the elastic portion 45 of the vibration preventing member 41 is more gradual than the state shown in FIG. The elastic portion 45 is in contact with the inner surface 15c of the inner panel 15 in a state of being deformed into a circular arc shape.

  At this time, since the protrusion length of the vibration preventing member 41 is the protrusion length L3 which is shorter than the protrusion length L2 in the attached state, the elastic portion 45 is relatively strong on the inner surface 15c of the inner panel 15. Contact elastically.

  For this reason, the vibration preventing member 41 effectively absorbs a relatively large vibration and a large load such as when the door is opened and closed, and effectively suppresses the generation of vibration noise of the door trim 13. Although not shown, further vibration noise can be suppressed by attaching a pad made of urethane foam or the like to the surface of the elastic portion 45 on the inner panel 15 side.

  Further, as shown in FIG. 8C, in a state where a larger load is applied to the door trim 13 from the state shown in FIG. 8B, the elastic portion 45 of the vibration preventing member 41 is elastically deformed into a flat shape, The elastic portion 45 comes into contact with the inner surface 15 c of the inner panel 15, and the tip portions (connecting portions 46) of the pair of plate-like portions 43 abut the inner surface 15 c of the inner panel 15.

  At this time, the protrusion length of the vibration preventing member 41 becomes the protrusion length L4 which is further shortened from the protrusion length L3 in the state where the relatively large vibration or large load is applied, and thus the inner surface of the inner panel 15 While the whole elastic part 45 contacts 15c, the front-end | tip part of a pair of plate-shaped part 43 bumps, and the said pair of plate-shaped part 43 receives force with high rigidity.

  For this reason, the vibration preventing member 41 receives and absorbs a large load such as when the passenger pushes the door open by hand, and effectively suppresses the generation of vibration noise of the door trim 13 and the dents and beaks of the door trim 13. Further, since the inner surface 15c of the inner panel 15 is supported by the high rigidity of the pair of plate-like portions 43, deformation of the board 18 of the door trim 13 and discoloration of the design surface 18a are suppressed.

  As described above, the structure of the door trim 13 according to the embodiment of the present invention is a resin trim structure for a vehicle that is attached to the inner panel 15 of the front side door 2 of the automobile 1. 18b is formed with a vibration preventing member 41 that abuts against the inner panel 15, and the vibration preventing member 41 protrudes in parallel to the inner panel 15 in a direction substantially perpendicular to the back surface 18b. At least a pair of plate-like portions 43 is provided, and an elastic portion 45 that is connected to both of the tip portions and elastically contacts the inner panel 15 so as to be elastically deformable is provided at the tip portions of the pair of plate-like portions 43. In addition, the pair of plate-like portions 43 and the elastic portion 45 are integrally formed with the door trim 13.

  In this manner, the pair of plate-like portions 43 are substantially perpendicular to the back surface 18b of the door trim 13 and protrude in parallel toward the inner panel 15, and the elastic portions 45 that are elastically contacted with the inner panel 15 are the pair of plates. Since it is provided at the tip of the plate-like portion 43, the elastic portion 45 that elastically deforms in response to vibration absorbs the vibration of the door trim 13, and the pair of plate-like portions 43 support the elastic portion 45. Therefore, since the elastic part 45 supported by the pair of plate-like parts 43 is elastically deformed and absorbs vibration, the deformation of the pair of plate-like parts 43 (particularly, the deformation on the proximal end side of the plate-like part 43) is suppressed. The discoloration of the design surface 18a of the door trim 13 can be suppressed.

  In addition, since the elastic portion 45 is connected to both of the tip portions of the pair of plate-like portions 43, the mechanical strength is significantly improved as compared with the cantilever shape, and the front side door 2 It is possible to suppress the generation of vibration sound and hitting sound even against a strong impact such as when opening and closing the door.

  Further, since the elastic portion 45 is connected to both of the tip portions of the pair of plate-like portions 43, the mechanical strength is greatly improved as compared with the case of a cantilever shape, and the elastic force of the plate-like portion 43 is also used. Therefore, it is possible to significantly suppress the decrease in elasticity over time, and it is possible to configure a durable vibration preventing member that maintains the effect of suppressing the generation of vibration sound and hitting sound.

  In addition, since the elastic portion 45 is connected to both of the tip portions of the pair of plate-like portions 43, the surface of the elastic portion 45 is brought into contact when further suppression of the generation of vibration noise and hitting sound is necessary. It is possible to attach a pad for softly receiving and absorbing vibration.

  Further, since the pair of plate-like portions 43 and the elastic portion 45 are integrally formed together with the door trim 13, it is possible to reduce costs without assembling separate members or increasing the number of parts.

  In addition, the structure of the door trim 13 according to the embodiment of the present invention has a curved shape in which the space between the connecting portions 46 of the elastic portion 45 and the pair of plate-like portions 43 protrudes toward the inner panel. Since it is formed, the elasticity of the elastic part 45 can be improved and generation | occurrence | production of a vibration sound and a hitting sound can be suppressed more effectively.

  Moreover, since the connection part 46 of a pair of plate-shaped part 43 and the elastic part 45 tends to deform | transform the structure of the door trim 13 concerning one embodiment of this invention, the elastic deformation of the elastic part 45 is made still easier. At the same time, the elasticity of the elastic portion 45 can be further improved, and the generation of vibration sound and hitting sound can be further effectively suppressed.

  Further, since the connecting portion 46 between the pair of plate-like portions 43 and the elastic portion 45 is easily deformed, when the elastic portion 45 comes into contact with the inner panel 15 and is elastically deformed flat, the pair of plate-like portions 43. Both of the distal end portions of the pair of plate-like portions 43 are easily deformed in a direction away from each other, and both the distal end portions of the pair of plate-like portions 43 are easily deformed in a direction away from each other. It can suppress that the deformation stress of the said front-end | tip part acts on a part, and can further suppress discoloration of the design surface 18a of the door trim 13. FIG.

  The structure of the door trim 13 according to the embodiment of the present invention is such that when the door trim 13 moves in the direction of the inner panel, that is, opening / closing operation when the front side door 2 is opened / closed, vibration during traveling, etc. When the door trim 13 abuts against the inner panel 15, the elastic portions 45 elastically contacted with the inner panel 15 are deformed, and the leading ends of the pair of plate-like portions 43 abut against the inner panel 15. When a large load that cannot be absorbed by the elastic portion 45 is applied, the tip portions of the pair of plate-like portions 43 come into contact with the inner panel 15, and the pair of plate-like portions 43 support the inner panel 15. . Since the pair of plate-like portions 43 support the inner panel 15 in this way, when the tip portions of the pair of plate-like portions 43 abut against the inner panel 15, further deformation of the elastic portion 45 can be restricted. The damage of the elastic part 45 can be prevented.

  Further, even when a large load that cannot be absorbed by the elastic portion 45 is applied from the design surface 18a side of the door trim 13, the pair of plate-like portions 43 support the inner panel 15, so that the door trim 13 is depressed. It can suppress, the rigidity of the door trim 13 can be improved, and merchantability can be improved.

  In the above-described embodiment, the structure of the door trim 13 as a resin trim for a vehicle attached to doors such as the front side door 2, the rear side door 3, and the back door 4 has been described. This structure can be applied to, for example, a lining decorative member attached to the inner panel of the automobile 1 such as a trunk lid inner panel or a floor inner panel, or a resin member attached to the inner panel of the automobile 1.

  The structure of the door trim 13 according to the present invention can be used to suppress the generation of vibration noise of doors such as the front side door 2 of the automobile 1.

1 Automobile (vehicle)
2 Front side door 11 Door panel 13 Door trim (resin trim for vehicles)
18a Design surface 18b Back surface 15 Inner panel 18 Board 41 Vibration preventing member 43 A pair of plate portions 45 Elastic portion 46 Connecting portion 47 Easy deformable portion

Claims (4)

A structure of a resin trim for a vehicle attached to an inner panel of a vehicle,
On the back surface of the resin trim for the vehicle, a vibration preventing member that contacts the inner panel is formed,
The vibration preventing member includes at least a pair of plate-like portions that are substantially perpendicular to the back surface and project in parallel toward the inner panel;
The tip portions of the pair of plate-like portions are provided with an elastic portion that is connected to both of the tip portions and elastically contacts the inner panel so as to be elastically deformable, and
The pair of plate-like portions and the elastic portion are integrally formed together with the vehicle resin trim, and the vehicle resin trim structure.   The resin trim for a vehicle according to claim 1, wherein a space between both the connecting portions of the elastic portion and the pair of plate-like portions is formed in a curved shape protruding toward the inner panel. Construction.   The structure of the resin trim for vehicles according to claim 1 or 2, wherein a connecting portion between the pair of plate-like portions and the elastic portion is easily deformed.   When the vehicle resin trim provided with the pair of plate-like portions is moved in the direction of the inner panel, the pair of plate-like portions is deformed after the elastic portion elastically contacted with the inner panel is deformed. The structure of the resin trim for vehicles according to any one of claims 1 to 3, wherein a front end portion of the portion abuts against the inner panel.

Images