JP2020124935A - Ceiling material for vehicle - Google Patents

Abstract

To provide a ceiling material for a vehicle which can enhance rigidity without increasing the weight.SOLUTION: A tabular ceiling material 20 which is arranged on cabin inside of a roof panel 10 of a vehicle, comprises a pair of gripping parts 30, 30 provided in a manner capable of being gripped, in end parts 21, 21 forming opposite sides. One gripping part 30 includes thick wall parts 32, 34 and thin wall parts 33, 35 which are arranged in a shape parallel to the thick wall parts 32, 34 and which are smaller in thickness than the thick wall part 32. The thick wall parts 32, 34 and the thin wall parts 33, 35 are extended in a direction intersecting with a line connecting the pair of gripping parts 30, 30.SELECTED DRAWING: Figure 3

Description

The present invention relates to a vehicle ceiling material.

BACKGROUND ART Conventionally, a vehicle ceiling material described in Patent Document 1 is known. The vehicle ceiling material described in Patent Document 1 is a vehicle ceiling material (vehicle ceiling material) disposed inside a roof panel of a vehicle body, and a plurality of beads having a grooved cross section are provided on the back surface thereof. Has been. It is disclosed that each bead has a corrugated shape in which a mountain portion and a valley portion are repeated and extends in the vehicle front-rear direction, and a plurality of beads are arranged in parallel in the vehicle width direction at a predetermined interval. ing.

JP, 2010-195261, A

However, in the configuration disclosed in Patent Document 1, for example, when an operator grips the peripheral end portion of the vehicle ceiling material when assembling the vehicle ceiling material to the roof panel, the gripped portion is used as a starting point for the vehicle. Since the ceiling material may be bent or split, the workability of assembly is poor. Further, in order to prevent such a situation, it is conceivable to increase the basis weight of the base material that becomes the vehicle ceiling material to increase the rigidity, but in that case, the vehicle ceiling material becomes heavy.

The present invention has been completed in view of the above circumstances, and an object of the present invention is to provide a vehicle ceiling material that can improve rigidity without weighting.

The present invention relates to a plate-shaped vehicle ceiling material that is arranged on a vehicle cabin inner side of a vehicle roof panel, and has a pair of gripping portions that are provided so as to be grippable at opposite ends, and the gripping portion is provided. Has a thick portion and a thin portion arranged in parallel with the thick portion and having a thickness smaller than that of the thick portion, and the thick portion and the thin portion include the pair of grips. It is characterized in that it is extended in the direction intersecting the line connecting the parts.

Many ceiling materials for vehicles are composed of large plate-shaped members, and when such plate-shaped members are gripped at the ends that form opposite sides, they tend to bend along the line connecting the gripped parts. In such cases, the workability may be poor, and wrinkles or bending may occur on the ceiling material itself. However, according to the vehicle ceiling material as described above, since the grip portion has the thick portion and the thin portion having a thickness smaller than that of the thick portion, the grip portion is arranged in parallel with the thick portion. A concave-convex shape (bead shape) is given to the portion, and the rigidity thereof is increased. And, in particular, since the thick portion and the thin portion are extended in the direction intersecting the line connecting the pair of gripping portions, when the worker at the time of assembly grips the pair of gripping portions, It is possible to prevent the vehicle ceiling material from bending around the line connecting the grips as a starting point (fold), resulting in inferior workability in assembling and the occurrence of wrinkles or bending in the ceiling material itself.

In the above configuration, the grip portion may have a recessed portion that is recessed inward in the plane, and the thick-walled portion and the thin-walled portion may extend near the edge of the recessed portion.

According to such a vehicle ceiling material, an operator at the time of assembly can easily grasp the concave portion with his/her fingers, and can easily handle the vehicle ceiling material by grasping the grasping portion. Further, since the thick portion and the thin portion are provided in the vicinity of the inner and outer edge portions of the concave portion, it is possible to increase the rigidity of the concave portion which is easily grasped by the operator's finger.

In the above structure, the recess may be shaped to fit into a columnar portion that supports the roof panel.

According to such a vehicle ceiling material, the concave portion that fits into the columnar portion can also be used as a portion to be gripped by an operator during assembly.

In the above configuration, the thin portion may be provided in a zigzag shape.

According to such a vehicle ceiling material, since the thin-walled portion is provided in a zigzag shape, it is possible to increase the rigidity of the grip portion against a force applied from various directions.

In the above configuration, the first thin-walled portion includes a first thin-walled portion that extends inside the surface of the edge portion and a second thin-walled portion that extends inside the surface of the first thin-walled portion. One of the portion and the second thin portion may be provided in a zigzag shape.

According to such a vehicle ceiling material, the thin portions are multiply arranged inside the surface of the edge portion, so that the rigidity of the recess can be further increased. Further, since one of the first thin portion and the second thin portion is provided in a zigzag shape, it is possible to increase the rigidity of the concave portion against a force applied from various directions.

ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the ceiling material for vehicles which can improve rigidity, without making it heavy.

The side view which shows the vehicle which concerns on Embodiment 1. A view of the ceiling material from the outside of the passenger compartment Enlarged view of left grip Sectional view of the left grip portion (IV-IV line cross section of FIG. 3) The enlarged view which shows the left holding part which concerns on a comparative example. The figure which looked at the ceiling material concerning Embodiment 2 from the vehicle interior outside. Enlarged view of left grip

<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS. In this embodiment, a ceiling material (vehicle ceiling material) mounted on a vehicle as a vehicle will be described. Note that the arrow direction L is leftward, the arrow direction R is rightward, the arrow direction FR is forward, the arrow direction RR is backward, the arrow direction T is upward, and the arrow direction B is downward.

As shown in FIG. 1, a vehicle (vehicle) 1 includes a roof panel 10 provided above the vehicle 1, a columnar columnar portion 11 for supporting the roof panel 10 from below, in a body panel of a sheet metal forming the outer shape thereof. 12, 13, 14, and. The columnar parts 11, 12, 13, and 14 are composed of a pillar panel and a pillar trim attached to the pillar panel from the vehicle interior side. The pillar panels are called A-pillar panel, B-pillar panel, C-pillar panel, and D-pillar panel and are arranged side by side from the vehicle front side. Of the columnar portions 11, 12, 13, and 14, the second one from the vehicle front side is the columnar portion 12 including a B pillar panel and a B pillar trim.

A ceiling member 20 is attached to the roof panel 10 from the vehicle interior side by a clip or the like not shown. As shown in FIG. 2, the ceiling material 20 is a thin plate-shaped interior material that constitutes the ceiling of the vehicle interior and has the longitudinal direction in the vehicle front-rear direction. The ceiling material 20 is sometimes called “roof lining” or “molded ceiling”. As a material for the ceiling material 20, for example, a relatively lightweight foamable resin such as urethane foam can be adopted.

The ceiling member 20 includes a plurality of openings 22, 23, 24 that open in the thickness direction and a pair of ends 21 and 21 that form opposite sides in the left-right direction and that are arranged in a portion slightly forward of the center in the front-rear direction. And the grip portions 30, 30 of. The plurality of openings 22, 23, 24 are openings for mounting a mounting member such as a clip or a lighting device for illuminating the vehicle interior, and have various sizes and shapes. The pair of grips 30 and 30 are provided so that an operator or the like of the assembly can open both hands and grip with the fingers when the ceiling material 20 is assembled to the roof panel 10, and the left and right sides of the ceiling material 20. It is distributed to and.

The grips 30 and 30 have recesses 31 and 31 which are recessed inward in a plane in a round shape and which can be fitted into the columnar part 12 (see FIG. 1 ). Hereinafter, the left grip portion 30 will be described with reference to FIG. 3 which is an enlarged view and FIG. 4 which is a cross-sectional view. In the left grip portion 30, the recess 31 has thick-walled portions 32 and 34 and thin-walled portions 33 and 35 having a smaller thickness than the thick-walled portions 32 and 34. The thin portions 33 and 35 are, for example, portions that are pressed so as to have a smaller thickness than the thick portions 32 and 34 when the ceiling material 20 is manufactured by pressing a plate-shaped base material with a molding die. .. Note that, in FIG. 3, the thin portions 33 and 35 are represented as regions having higher dot density than the thick portions 32 and 34. Then, it is assumed that the regions having the same dot density have the same thickness.

The thick portions 32, 34 and the thin portions 33, 35 extend in a direction (front-rear direction) intersecting a line (a line extending in the left-right direction) 39 connecting the pair of grips 30, 30 (see FIG. 2). .. It can be said that the thick portions 32, 34 and the thin portions 33, 35 extend in the longitudinal direction of the ceiling material 20. The thick portions 32, 34 and the thin portions 33, 35 extend in the vicinity of the edge 31A of the recess 31 so as to surround the edge 31A from the inside of the surface.

The thin-walled portions 33, 35 are formed on the inner surface of the edge portion 31A by a first thin-walled portion 33 extending in such a manner as to surround the edge portion 31A from the inner surface of the edge portion 31A, and by a first thin-walled portion on the inner surface of the first thin-wall portion 33. The first thin wall portion 33 extends from the inside of the surface to surround the second thin wall portion 35. The first thin portion 33 and the second thin portion 35 have the same thickness, and can be, for example, 2 mm. A portion of the first thin portion 33 extending in the front-rear direction has a substantially linear shape. On the other hand, in the second thin portion 35, the portion extending in the front-rear direction is provided in a zigzag shape.

The thick-walled portions 32 and 34 include a first thick-walled portion 32 and a second thick-walled portion 34 that is arranged inside the surface of the first thick-walled portion 32 and has a larger thickness than the first thick-walled portion 32. Have. The thickness of the first thick portion 32 and the second thick portion 34 can be, for example, 4 mm or more and 6 mm or less.

A first thick portion 32 is arranged between the edge portion 31A and the first thin portion 33 so as to extend in the front-rear direction. A first thick portion 32 and a second thick portion 34 are arranged between the first thin portion 33 and the second thin portion 35. The first thin wall portion 33 is arranged in parallel with the first thick wall portion 32 arranged on the inside and outside of the surface. The boundary between the thick-walled portions 32 and 34 and the thin-walled portions 33 and 35 gradually changes so that the thickness increases from the thin-walled portions 33 and 35 toward the thick-walled portions 32 and 34. (Represented as a grid-shaped pattern area). Thus, it can be said that the concave portion 31 has the thick-walled portions 32 and 34 and the thin-walled portions 33 and 35, so that the concave-convex shape (bead shape) is provided.

Then, the effect of this embodiment is explained. In the present embodiment, a pair of grips provided so as to be grippable at the end portions 21 and 21 that are opposite sides on the left and right sides of the plate-shaped ceiling material 20 disposed on the vehicle cabin inner side of the roof panel 10 of the vehicle. The grip portion 30 on the left side includes the thick portions 32 and 34 and the thin portions 33 and 35 that are arranged in parallel with the thick portion 32 and have a smaller thickness than the thick portion 32. The thick-walled portions 32, 34 and the thin-walled portions 33, 35 extend in a direction intersecting a line connecting the pair of gripping portions 30, 30.

The ceiling material of a vehicle is often composed of a large plate-shaped member, and when such a plate-shaped member is gripped at the ends forming opposite sides, it tends to bend along the line connecting the gripped parts. In such cases, the workability may be poor, and wrinkles or bending may occur on the ceiling material itself. However, according to the ceiling material 20 as described above, the left grip portion 30 is arranged in the thick portion 32 and the thick portion 32 in parallel with each other, and the thin portion 33 having a smaller thickness than the thick portion 32, 35, the grip portion 30 is provided with an uneven shape (bead shape), and its rigidity is increased. In particular, since the thick portions 32, 34 and the thin portions 33, 35 are extended in the direction intersecting the line connecting the pair of gripping portions 30, 30, the operator at the time of assembling can handle the pair of gripping portions. When the 30, 30 are gripped, the ceiling material 20 bends around the line connecting the pair of gripping portions 30, 30 as a starting point (fold), the workability of assembling is poor, and wrinkles and bends occur in the ceiling material itself. Can be suppressed.

Further, in the present embodiment, the grip portion 30 has a recessed portion 31 that is recessed inside the surface, and the thick-walled portion 32 and the thin-walled portions 33 and 35 extend near the edge 31A of the recessed portion 31. ..

According to such a ceiling material 20, an operator at the time of assembling can easily grasp the concave portion 31 with his/her fingers and easily grasp the grip portion 30 to handle the ceiling material 20. Since the thick portion 32 and the thin portions 33 and 35 are provided near the edge 31A on the in-plane outer side of the recess 31, the rigidity of the recess 31 that is easily grasped by the operator's fingers is improved. Can be increased.

Further, in the present embodiment, the concave portion 31 has a shape that can be fitted into the columnar columnar portion 12 that supports the roof panel 10.

According to such a ceiling member 20, the recess 31 that fits into the columnar portion 12 can also be used as a portion to be gripped by an operator during assembly.

In the above configuration, the thin portion 35 is provided in a zigzag shape.

According to such a ceiling material 20, since the thin portion 35 is provided in a zigzag shape, it is possible to increase the rigidity of the grips 30 and 30 against forces applied from various directions.

In the above configuration, the first thin-walled portion 33 extending inside the surface of the edge portion 31A and the second thin-walled portion 35 extending inside the surface of the first thin-walled portion 33 are provided. The thin portion 35 is provided in a zigzag shape.

According to such a ceiling material 20, since the thin portions 33 and 35 are multiply arranged inside the surface of the edge portion 31A, the rigidity of the concave portion 31 can be further increased. Further, since the second thin portion 35 is provided in a zigzag shape, it is possible to increase the rigidity of the recess 31 against forces applied from various directions.

Then, in order to confirm the effect of this embodiment, the ceiling material 120 (comparative example: see FIG. 5) to which the uneven shape (bead shape) is not applied and the ceiling material 20 according to this embodiment (example: (See FIG. 3) and the rigidity was compared. Specifically, when a force of 10N is applied from the outside of the vehicle to a predetermined portion (a portion to be pressed) near the edge of the recess, the edge of the recess is in an initial state (before applying a force of 10N). Table 1 shows a comparison of the distance (deflection amount) moved from the state (1). In the concave portion 31 (grasping portion 30) of the ceiling material 20 shown in FIG. 3, the pressed portions 41, 42, 43, 44, 45, 46 are the concave portions 131 (gripping portion 130) of the ceiling material 120 shown in FIG. ) Corresponds to the pressed portions 141, 142, 143, 144, 145, 146. It can be confirmed that the amount of flexure in the example is smaller than that of the comparative example in any of the pressed portions.

<Embodiment 2>
Next, a second embodiment of the present invention will be described with reference to FIGS. In the present embodiment, a ceiling material (vehicle ceiling material) 220 having a grip portion configuration different from that of the first embodiment is exemplified. In the present embodiment, the same parts as those in the above-mentioned embodiment are designated by the same reference numerals, and the overlapping description of the structure, action and effect will be omitted.

As shown in FIG. 6, the ceiling material 220 has a plurality of openings 222, 223, 224, and 225 that open in the thickness direction. The openings 222, 223, and 224 are openings for mounting attachment members such as clips and lighting devices that illuminate the vehicle interior, and have various sizes and shapes. On the other hand, the opening portion 225 is a portion that is opened for a sunroof that takes in outside light from above the vehicle and looks at a view of the sky, and occupies most of the central front side of the ceiling material 220.

As shown in FIG. 7, the recess 231 has thick portions 232, 234 and thin portions 233, 235, 237 having a smaller thickness than the thick portions 232, 234. More specifically, the grip portion 230 includes a first thick portion 232 and a first thick portion 232, which are provided inside the surface of the edge portion 231A so as to surround the edge portion 231A from the inside of the surface. The first thin-walled portion 233 extending so as to surround the inside of the plane, the second thick-walled portion 234 extending inside the plane of the first thin-walled portion 233, and the second thick-walled portion 234 inside the plane And a second thin portion 235 extending in a form of surrounding. Inside the surface of the edge portion 231A, the thick-walled portions 232 and 234 and the thin portions 233 and 235 are extended in a concentric pattern so as to alternately surround the edge portion 231A from the inside of the surface. Can also be said. The thin portion 237 is a portion that extends from the inside of the surface toward the edge portion 231A in order to reinforce the shape of the grip portion 230 that bulges toward the vehicle interior side.

In the present embodiment, in a ceiling material having a relatively large opening, such as the ceiling material 220 provided with the sunroof opening 225, when an operator grips the gripping portion during assembly, the opening and the gripping portion Bends between and tends to cause wrinkles and cracks. However, as described above, since the concave portion 231 has the thick portions 232 and 234 and the thin portions 233 and 235, an uneven shape (bead shape) is imparted and reinforced, so that the rigidity of the grip portion 230 is increased. improves. Therefore, it is possible to suppress the bending between the opening 225 and the grip 230 and the generation of wrinkles and cracks.

<Other Embodiments>
The present invention is not limited to the embodiments described by the above description and the drawings. For example, the following embodiments are also included in the technical scope of the present invention, and within the scope not departing from the gist other than the following. Can be variously modified and implemented.

(1) In addition to the first embodiment, the configuration of the recess can be changed as appropriate. In the first embodiment, the thick wall portion and the thin wall portion are provided in the left concave portion, but the present invention is not limited to this. For example, the thick-walled portion and the thin-walled portion may be provided in the recess on the right side, or may be provided in the recesses on both sides.

(2) In addition to the first embodiment, the configuration of the grip portion can be changed as appropriate. In the above-described first embodiment, the grip portion has the concave portion that can be fitted into the columnar portion 12 including the B pillar panel, but is not limited to this. For example, the grip portion may have a recessed portion that can be fitted into any one (or two or more) of the columnar portions 11, 13, and 14.

(3) Besides the first embodiment, the configuration of the thin portion can be changed as appropriate. In the first embodiment, in the thin portion, the first thin portion 33 has a substantially linear shape and the second thin portion 35 has a zigzag shape, but the thin portion is not limited to this. For example, in the thin portion, the first thin portion may have a zigzag shape and the second thin portion may have a substantially linear shape, or both the first thin portion and the second thin portion may have a zigzag shape. Good.

(4) The vehicle ceiling material illustrated in the above embodiment is not limited to being provided for a vehicle, and may be provided for various vehicles. For example, the above vehicle ceiling material can be applied to vehicles such as trains and amusement vehicles as ground vehicles, airplanes and helicopters as flying vehicles, and ships and submersible vehicles as offshore and undersea vehicles.

DESCRIPTION OF SYMBOLS 1... Vehicle (vehicle), 10... Roof panel, 12... Columnar part, 20, 120, 220... Ceiling material (vehicle ceiling material) 21,221... End part, 30, 130, 230... Gripping part, 31,. 131, 231... Recessed portion, 31A, 231A... Edge portion, 32, 34, 232, 234... Thick wall portion, 33, 35, 233, 235, 237... Thin wall portion

Claims (5)

A plate-shaped vehicle ceiling material that is arranged on the inside of a vehicle roof panel,
At a pair of opposite ends, a pair of grips provided so as to be grippable are provided,
The grip portion has a thick portion and a thin portion that is arranged in parallel with the thick portion and has a smaller thickness than the thick portion,
The vehicle ceiling material, wherein the thick portion and the thin portion extend in a direction intersecting a line connecting the pair of gripping portions. The grip portion has a recessed portion that is recessed inward in the plane,
The vehicle ceiling material according to claim 1, wherein the thick-walled portion and the thin-walled portion are extended near an edge of the recess. The vehicle ceiling material according to claim 2, wherein the concave portion has a shape that can be fitted into a columnar portion that supports the roof panel. The vehicle ceiling material according to any one of claims 1 to 3, wherein the thin portion is provided in a zigzag shape. The thin portion is
A first thin portion extending inwardly of the edge surface;
A second thin portion extending inside the surface of the first thin portion,
The vehicle ceiling material according to claim 2 or 3, wherein one of the first thin portion and the second thin portion is provided in a zigzag shape.

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