JP2016068349A - Vehicle interior member and production method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve finishing of a skin material wound to a corner end edge of a substrate.SOLUTION: A vehicle interior member 10 comprises plural projection pieces 20 disposed on a rear face of a substrate 12 and adjacent to salient-state corner end edges 14 which curve outward on the substrate 12 so as to become salient. The plural projection pieces 20 respectively project from the rear face of the substrate 12 so as to extend toward curve center side of the salient-state corner end edges 14 from the salient-state corner end edges 14, and arranged in parallel. Corner terminals 18 of a skin material 16 for covering the projection pieces 20 by being folded at the salient-state corner end edges 14, are fixed to the rear face 12b of the substrate 12 in a state of being pushed between adjacent projection pieces 20, 20.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vehicle interior member that includes a skin material that covers the surface of a base material, the terminal of the skin material being wound around and secured to the back surface of the base material, and a method for manufacturing the same.

  Various vehicle interior members such as an instrument panel, a floor console, a door trim, and a pillar garnish are disposed in a passenger compartment in a vehicle such as an automobile. This vehicle interior member is a member that greatly contributes to the texture and atmosphere in the passenger compartment, so there is a material that has improved texture by attaching a skin material to the outside of the synthetic resin base material molded into the required shape . As such a skin material, those of various materials have been put into practical use, and examples thereof include woven fabric, knitted fabric, synthetic resin, or genuine leather.

  When the skin material is attached to the base material, a skin material formed appropriately larger than the entire area of the surface of the base material is attached to the surface of the base material. Next, the end of the skin material that is left over from the edge of the base material is wound around the back side of the base material, and the terminal of the skin material is fixed to the back surface of the base material with an adhesive or a tucker. Processing is in progress. At the straight edge of the substrate, for example, as shown in Patent Document 1, mechanization is performed so that the terminal treatment of the skin material is automatically performed by the processing device. However, at the curved corner edge of the base material, it is difficult to mechanize the terminal treatment of the skin material because the skin material terminal can be wrinkled simply by bending the skin material based on the corner edge. . Therefore, the actual situation is that the terminal treatment of the skin material at the corner edge of the base material is performed manually.

Japanese Patent Laid-Open No. 6-23841

  The terminal treatment of the skin material at the corner edge of the base material by manual work is performed by pulling the terminal of the skin material bent at the corner edge of the base material to the back side, for example, by pulling the terminal by hand, A pleat is made and stretched so that the end of the skin material does not wrinkle at the corner edges. And the terminal of a skin material is welded to the back surface of a base material, maintaining the state which extended the part which covers a corner edge. As described above, the terminal treatment of the skin material at the corner edge of the base material by manual work is very troublesome and the production efficiency is poor. In addition, since it depends largely on the skill of the operator, the finish of the skin material at the corner edge is not stable, and there is a problem that the surface quality of the obtained vehicle interior member becomes large.

  That is, the present invention has been proposed to solve these problems in view of the problems related to the prior art, and a vehicle interior member in which an end of a skin material is well wound into a corner edge of a base material. And it aims at providing the manufacturing method.

In order to overcome the above-mentioned problems and achieve the intended object, the vehicle interior member of the invention according to claim 1 of the present application,
In the vehicle interior member in which the surface of the base material is covered with a skin material, and the terminal of the skin material wound from the front side to the back side of the base material is fixed to the back surface of the base material.
Adjacent to the convex corner edge that curves to protrude outward in the substrate, it has a plurality of protrusions provided on the back surface of the substrate,
The plurality of projecting pieces protrude from the back surface of the base material so as to extend from the convex corner edge toward the curved center side of the convex corner edge, and are arranged in parallel.
The terminal of the skin material that is folded back at the edge of the convex corner and covers the projecting piece is fixed to at least one of the back surface of the base material and the projecting piece while being pushed between adjacent projecting pieces. And
According to the invention according to claim 1, the end of the skin material folded back at the convex corner edge is pushed between a plurality of projecting pieces provided on the back surface of the base material adjacent to the convex corner edge. Since it is fixed to the base material in a state, an excessive portion of the end produced by winding the end of the skin material around the edge of the convex corner can be folded by pushing it into the projecting piece. Thereby, wrinkles can be prevented from occurring in the skin material wound around the convex corner edge of the substrate. Moreover, since the end of the skin material is folded on the back side of the base material based on the protrusion set in advance on the base material, the finished state of the skin material wound around the convex corner edge is stable, and the vehicle interior member Quality can be improved.

The gist of the invention according to claim 2 is that the projecting dimension of the projecting piece from the back surface of the base material is set to be equal to or greater than the thickness of the skin material.
According to the invention which concerns on Claim 2, it can guide appropriately so that the terminal of the skin material pushed in between the protrusions may be folded, and a wrinkle arises in the part which covers a convex corner edge in skin material. Can be more suitably prevented.

The gist of the invention according to claim 3 is that the interval between the adjacent projecting pieces is set to be twice or more the thickness of the skin material.
According to the invention which concerns on Claim 3, it can guide appropriately so that the terminal of the skin material pushed in between the protrusions may be folded, and a wrinkle arises in the part which covers a convex corner edge in skin material. Can be more suitably prevented.

In order to overcome the above-mentioned problems and achieve the intended purpose, a method for manufacturing a vehicle interior member according to claim 4 of the present application is
A method for manufacturing a vehicle interior member obtained by covering the surface of a base material with a skin material, and fixing the terminal of the skin material wound from the front side to the back side of the base material on the back surface of the base material,
By the winding means that holds the terminal of the skin material, the terminal is pulled back at the convex corner edge that curves so as to protrude outwardly while being pulled, and is wound on the back side, and protrudes to the back surface of the base material Holding the terminal in a state of covering the plurality of formed protrusions and being along the back surface of the base material,
Push the terminal of the skin material covering the plurality of protruding pieces between adjacent protruding pieces by pushing means, and bring the terminals close together,
The gist is that the end of the skin material is fixed to at least one of the back surface of the base material and the protruding piece.
According to the invention of claim 4, the end of the skin material folded back at the convex corner edge is pushed between the plurality of projecting pieces provided on the back surface of the base material adjacent to the convex corner edge. Thus, since the terminal is guided by the projecting piece, the terminal can be folded on the back side of the base material. In this way, since the surplus portion of the skin material generated by winding the skin material around the convex corner edge of the base material is brought together and fixed in a folded state on the back surface of the base material, the skin material is attached to the base material. It can wind so that a wrinkle may not arise in a convex corner edge. Moreover, the terminal winding operation | work to the convex-shaped corner edge of the base material in a skin material can be automated by a winding means and a pushing means, and the effort concerning winding of the terminal of a skin material can be reduced. And the state which folded the terminal of the skin material on the back surface of a base material can be stably formed by pushing in the terminal of a skin material on the basis of the protrusion provided in the back surface of the base material. Further, the end of the skin material can be stably pulled by the winding means. Therefore, the finished state of the skin material wound around the convex corner edge can be stabilized, and the quality of the obtained vehicle interior member can be improved.

In the invention according to claim 5, by operating the entraining means so that the holding portion of the terminal by the entraining means is rotationally displaced along a trajectory gradually separating from the convex corner edge on the back side of the base material, The gist of the invention is that the edge of the convex corner is wound while the terminal is pulled, and the terminal of the skin material is welded or tacked to the back surface of the base material.
According to the invention of claim 5, by operating the entraining means so that the holding portion of the terminal by the entraining means is rotationally displaced along a trajectory gradually separating from the convex corner edge on the back side of the base material, Can be folded back to the back side of the substrate using the convex corner edge as a fulcrum. Also, by setting the holding part of the terminal by the winding means to be rotationally displaced, even if the convex corner edge of the base material is constituted by a standing wall extending to the back side of the base material, the terminal of the skin material can be The convex corner edge can be properly wound.

  According to the vehicle interior member according to the present invention, the skin material is well wound around the corner edge of the base material. According to the method for manufacturing a vehicle interior member according to the present invention, it is possible to stably obtain a vehicle interior member in which the skin material is finished and wound well around the corner edge of the base material.

1 is a rear view showing a vehicle interior member according to a preferred embodiment of the present invention. (a) is a top view which shows the terminal processing apparatus based on an Example, (b) is the A section enlarged view of (a). It is side sectional drawing which shows the 1st process part of an Example. It is a sectional side view which shows the 2nd process part of an Example. It is sectional drawing corresponding to the BB line of Fig.2 (a), (a) shows the condition which folded the corner terminal to the back side of the base material, and covered the protrusion, (b) is the fixing | fixed part of fixing means Shows the situation where the corner terminal is pushed between the projecting pieces and welded. It is sectional drawing explaining the corner terminal process which concerns on the example of a change, Comprising: A needle | hook is driven into the base material by the tacker and the situation which tacker stops the corner terminal to the base material is shown.

  Next, a vehicle interior member and a method for manufacturing the same according to the present invention will be described below with reference to the accompanying drawings by way of preferred embodiments.

  As shown in FIG. 1, the vehicle interior member 10 according to the embodiment includes a plate-like base material 12 and a skin material 16 that covers the front side of the base material 12, and a skin material on a surface 12 a of the base material 12. 16 is joined by an adhesive or the like. The vehicle interior member 10 is formed so that the skin material 16 is slightly larger than the base material 12, and the terminals 17 and 18 of the skin material 16 remaining so as to extend outward from the end edges 13 and 14 of the base material 12. Is wound around the back surface 12b of the base material 12 by a terminal processing apparatus and fixed to the back surface 12b by welding or the like. Thereby, in the vehicle interior member 10, the skin material 16 is hardly separated from the base material 12, and the edges 13 and 14 of the base material 12 are covered with the skin material 16 to improve the appearance.

  The base 12 is a hard plate-like member that shapes the shape of the vehicle interior member 10 and ensures the rigidity of the vehicle interior member 10, and is formed into a required shape from a synthetic resin such as polypropylene (PP) by injection molding or the like. Molded. The base 12 connects a straight or loosely curved end edge (referred to as a general end edge 13) and two general end edges 13 and 13 extending in a direction intersecting with each other, and a general end so as to be convex outward. The convex corner end edge 14 that curves with a larger curvature than the edge 13 (a smaller curvature radius than the general terminal 13) forms a multi-sided outer shape. The base material 12 is provided with a standing wall 12c that rises toward the back side over three sides (upper and left and right in FIG. 2), and a standing wall 12c is formed on the remaining one side (lower in FIG. 2). Absent. That is, the base material 12 has edges 13 and 14 (to be distinguished from each other, referred to as the first general edge 13A and the first convex corner edge 14A) formed by the outer surface of the standing wall 12c, and the base material 12. The end surfaces 13 and 14 (in the case of distinction, referred to as the second general end edge 13B and the second convex corner end edge 14B) are formed by the end surfaces of the sides. In addition, the base material 12 has a flat surface 12a to which the skin material 16 is bonded, while various types of attachment parts for attaching the vehicle interior member 10 to the vehicle body or the like on the back surface 12b of the base material 12. An artificial product (none of which is shown) is formed at a position away from the end edges 13 and 14.

  The skin material 16 is a member that forms a surface (design surface) facing the vehicle interior side of the vehicle interior member 10, and has, for example, elasticity to give a texture of genuine leather, A pseudo stitch or the like may be formed on the front side. The skin material 16 folds a terminal (referred to as a general terminal 17) extending outward from the general edge 13 of the base material 12 at the general edge 13 and winds it around the back surface 12 b of the base material 12. A terminal (referred to as a corner terminal 18) extending outward from the convex corner edge 14 is folded back at the convex corner edge 14 and is wound around the back surface 12 b of the substrate 12. The skin material 16 of the embodiment has a multilayer structure having a flexible surface layer portion that constitutes the surface of the skin material 16 and a back layer portion that is provided on the back side of the surface layer portion and is made of an elastic foam or the like. Yes, it has flexibility and stretchability as a whole. For the surface layer portion, polyurethane, olefin (TPO), vinyl chloride or styrene elastomer, or polyurethane or vinyl chloride synthetic leather can be used. As the foam constituting the back layer portion, polyurethane foam, foam made of an olefin material such as polyethylene or polypropylene, styrene foam, or the like can be used. In addition, a nonwoven fabric, a textile fabric, etc. can also be used as a back layer part. The surface layer 16 and the back layer part are integrated by bonding the foam material forming the back layer part on the surface layer part by foam molding or by joining with an adhesive or frame lamination. It becomes. As the skin material 16, it is preferable to laminate a back layer portion made of polyurethane foam on a surface layer portion made of polyurethane synthetic leather because it is excellent in stretchability and elasticity.

  As shown in FIG. 2, the vehicle interior member 10 has a plurality of protruding pieces 20 provided on the back surface 12 b of the base material 12 adjacent to the convex corner edge 14 of the base material 12. . Each projecting piece 20 is a plate-like portion erected on the back surface 12 b of the base material 12. The vehicle interior member 10 is configured such that the corner terminal 18 that is folded back at the convex corner edge 14 and covers the plurality of projecting pieces 20 is pressed between the adjacent projecting pieces 20 and 20, and the back surface 12 b and the projecting piece of the base material 12. It is fixed to at least one of 20. In the vehicle interior member 10 of the embodiment, the corner terminal 18 is fixed to the back surface 12b of the base member 12 between the adjacent protruding pieces and outside the outermost protruding piece. The plurality of projecting pieces 20 may be formed integrally with the base material 12 or may be formed separately from the base material 12 and joined to the back surface 12b of the base material 12 in the embodiment. The substrate 12 and the projecting piece 20 are integrally formed at the time of molding 12. The plurality of projecting pieces 20 are formed so as to protrude from the back surface 12 b of the substrate 12 so as to extend from the convex corner end edge 14 side toward the curved center side of the convex corner end edge 14. In the embodiment, each projecting piece 20 is formed so as to extend along a winding line that connects the central portion in the extending direction of the convex corner edge 14 and the center of curvature of the convex corner edge 14. The plurality of projecting pieces 20 are arranged side by side so as to be separated from each other in a direction perpendicular to the winding line (a tangential direction passing through the central portion in the extending direction of the convex corner edge 14). The number of the projecting pieces 20 is appropriately set according to the extension length of the convex corner edge 14 and the like, and in the embodiment, the four projecting pieces 20 are arranged at a constant interval with a symmetrical positional relationship across the winding line. Is arranged in. In addition, as for the protrusion piece 20, it is desirable to provide in the range of 3-10 in the convex corner edge 14. FIG.

  The protruding piece 20 is preferably set so that the protruding dimension from the back surface 12b of the base material 12 is equal to or greater than the thickness of the skin material 16 (skin thickness), and when the corner terminal 18 is wound around the convex corner edge 14. It is set in relation to the surplus portion that occurs and the number of protrusions 20. Here, the skin material 16 is often set to a thickness of 0.8 mm to 3.0 mm, and the projecting dimension of the projecting piece 20 from the base material 12 is 3.0 mm to 3.0 mm in relation to the skin thickness. It is preferable to set in the range of 10 mm and 1.5 to 6 times the skin thickness. Further, the interval between the adjacent projecting pieces 20 and 20 is set to a dimension that allows the corner terminal 18 spanned between the extending ends of the adjacent projecting pieces 20 and 20 to be pushed between the projecting pieces 20 and 20. It is desirable to set it to 2 times or more of the skin thickness, and more preferably in the range of 2.5 to 8 times the skin thickness. In addition, when using the skin material 16 with good compressibility in the thickness direction, the interval between the adjacent projecting pieces 20 and 20 may be set to be smaller than twice the skin thickness. The protruding piece 20 may be arranged with the outer edge on the convex corner edge 14 side aligned with the convex corner edge 14, but the outer edge is positioned inside the convex corner edge 14. It is desirable to arrange so that. In the embodiment, the projecting piece 20 provided corresponding to the first convex corner end edge 14A has the outer wall connected to the inner wall surface of the standing wall 12c whose outer wall surface forms the first convex corner edge 14A. It arrange | positions and is spaced apart inward from 14A of 1st convex corner edges by the thickness of the standing wall 12c. In the embodiment, the projecting piece 20 provided corresponding to the second convex corner end edge 13B is arranged so that the outer wall surface is spaced inward from the end surface of the base material 12 formed by the second convex corner end edge 14B. Yes. The protruding piece 20 is disposed at a position overlapping the corner terminal 18 that is wound around the back surface of the base material 12. Here, the projecting piece 20 has an inner edge opposite to the convex corner edge 14 that extends to the same edge as or near the edge of the corner terminal 18 that is folded back on the back surface 12 b of the substrate 12. Is arranged. In addition, the protruding piece 20 of the embodiment extends inward from the corner terminal 18 that is folded back on the back surface 12 b of the base material 12.

  As shown in FIG. 2A, the terminal processing apparatus according to the embodiment includes an installation base 22 that holds the skin material 16 and the base material 12 in an overlapped state, and a second general structure of the base material 12 in the skin material 16. A first processing unit 24 for winding the general terminal 17 extending outward from the edge 13B, and a corner terminal 18 or skin material 16 extending outward from the convex corner edge 14 of the base material 12 in the skin material 16. And a second processing unit 36 for winding the general terminal 17 extending outward from the first general edge 13A of the base 12. That is, in the terminal processing device, two first processing units 24 and 24 are provided in parallel corresponding to the lower second general edge 13B in FIG. Further, the terminal processing apparatus is provided with a second processing unit 36 corresponding to each of the upper and left first general edges 13A in FIG. 2, and four convex corner edges 14 in the substrate 12. A second processing unit 36 is provided corresponding to each of the above.

  The installation table 22 is a table-shaped receiving jig that holds the skin material 16 and the base material 12 that are overlapped and joined to the surface 12a of the base material 12, and in a posture in which the back surface 12b of the base material 12 is exposed. The position is regulated (see FIGS. 3 and 4). The installation base 22 is similar to the second general edge 13B of the base 12 and is an installation recess 24 formed in a concave shape with an opening shape larger than the outer shape of the base 12 by the thickness of the skin material 16 (skin thickness). The skin material 16 and the base material 12 are accommodated in this installation recess 24 in this order. The installation base 22 is configured to hold the other end edges 13 and 14 excluding the second general end edge 13B in a state of extending outward from the installation recess 24. The installation recess 24 is recessed at substantially the same depth as the thickness of the vehicle interior member 10 in which the base material 12 and the skin material 16 are overlapped, and the installation recess 22 is provided on the back surface 12 b of the base material 12 accommodated in the installation recess 24. The periphery of the installation recess 24 is aligned on substantially the same plane. And the installation stand 22 of the skin material 16 extended outward from the 2nd general edge 13B of the base material 12 is accommodated in the installation recessed part 21 when the base material 12 which piled up the skin material 16 on the front side was accommodated. The general terminal 17 is supported by being bent along the second general end edge 13 </ b> B by the peripheral wall of the installation recess 24 so as to rise toward the back side of the substrate 12.

  As shown in FIG. 2A, the first processing unit 26 includes a flat plate-like winding body 28 and a first driving unit 30 including an actuator such as a cylinder that reciprocates the winding body 28. Yes. The 1st process part 26 pushes the general terminal 17 of the skin material 16 extended outward from the 2nd general edge 13B with the entrainment body 28, and uses this 2nd general edge 13B as a fulcrum, and the back surface 12b of the base material 12 (See FIG. 3). In the entrainment body 28, the contact edge 28 a that presses the general terminal 17 of the skin material 16 is formed according to the extending shape of the second general end edge 13 </ b> B in the base material 12, and the plate surface thereof is the base material 12. It arrange | positions so that the back surface 12b may be parallel. The entrainment body 28 is retracted to the outside of the installation recess 24 (outside of the second general edge 13B of the base material 12 installed in the installation recess 24) by the drive of the first drive unit 30, and It is configured to slide between an advance position overlapping the inside of the opening of the installation recess 24 (the back surface 12b of the base material 12 installed in the installation recess 24). The entrainment body 28 moves in parallel along the back surface 12b of the base material 12 at a height position separated from the back surface 12b of the base material 12 by the skin thickness, and the base material installed in the installation recess 24 at the advance position. The general terminal 17 is sandwiched between the back surface 12 b of the base 12 and the back surface 12 b of the base 12. Further, the winding body 28 is provided with a plurality of fixing holes 32 penetrating in the thickness direction at a position biased toward the abutting edge 28 a side, and the bonding portion 34 of the bonding means is inserted through the fixing holes 32. This is possible (see FIG. 3). Note that a plurality of fixing openings 32 are arranged in the winding body 28 so as to be aligned along the contact edge 28a. The joining means is configured to move the joining portion 34 three-dimensionally by a moving mechanism such as a robot hand. In the embodiment, the general terminal 17 pressed by the winding body 28 at the forward position is fixed to the back surface 12 b of the base material 12 by ultrasonic welding by fine ultrasonic vibration generated at the joint portion 34.

  As shown in FIG. 2 (a), the second processing section 36 holds the terminals 17, 18 of the skin material 16 and wraps the terminals 17, 18 on the back side of the substrate 12, and the wrapping means 38. Fixing means 50 for fixing the terminals 17 and 18 turned back at the edges 13A and 14 of the base material 12 by means 38 to the back surface 12b of the base material 12 is provided. Here, in the embodiment, in the second processing unit 36 that winds the corner terminal 18 around the convex corner edge 14, the fixing means 50 is arranged in parallel on the back surface 12 b of the substrate 12 corresponding to the convex corner edge 14. It also serves as a pushing means for pushing the corner terminal 18 between the plurality of projected pieces 20.

  As shown in FIG. 4, the winding means 38 is provided on a winding arm 42 that is rotatably supported by a support portion 40, and one end of the winding arm 42, and holds the terminals 17 and 18 of the skin material 16. The holding unit 44 includes a winding drive unit 46 that is linked to the winding arm 42 and includes an actuator such as a cylinder that rotates the winding arm 42. The winding means 38 overlaps the standby position withdrawn to the position outside the edges 13A, 14 that are the targets of winding of the base material 12 installed on the setting table 22, and the back surface 12b of the base material 12 from this standby position. Thus, the holding portion 44 can be displaced with the rotation of the winding arm 42 between the displaced winding positions. When the winding means 38 is displaced from the standby position to the winding position, the holding portion 44 holds the terminals 17 and 18 from the outside of the base material 12 through the back side of the edges 13A and 14 of the base material 12. As it goes to the inner side overlapping the back surface 12b of the material 12, it is configured to move away from the end edges 13A, 14 and in a locus close to the back surface 12b. Here, in the winding means 38, the rotation fulcrum of the winding arm 42 is located on the front side of the base material 12 installed in the installation recess 24 of the installation table 22, and the edges 13 </ b> A and 14 that are the targets of the terminals 17 and 18 to be involved. Is set at a position overlapping the surface side of the base material 12 from the extending end of the standing wall 12c.

  As shown in FIG. 4, a plurality of holding portions 44 are provided in one end of the winding arm 42 in parallel in a comb shape. The plurality of holding portions 44 are provided so as to protrude linearly from the winding arm 42 in a direction from the standby position toward the winding position. Further, the plurality of holding portions 44 are arranged in parallel at intervals in the extending direction of the end edges 13A, 14 (tangential direction passing through the central portion of the convex corner end edge 14) (FIG. 2 ( see a)). In the embodiment, each holding portion 44 is formed of a rod-like body, and has a pointed tip that holds the terminals 17 and 18 of the skin material 16. That is, the winding means 38 according to the embodiment is configured so that the terminals 17 and 18 are caught by the sharp tips of the holding portion 44 and hooked so that the terminals 17 and 18 do not come off when the holding portion 44 moves forward from the standby position to the winding position. 18 is held.

  In the winding means 38 for winding the corner terminal 18, the intervals between the plurality of holding portions 44 are set in accordance with the plurality of protruding pieces 20 arranged corresponding to the convex corner edge 14. Further, the winding means 38 for winding the corner terminal 18 is arranged so that the extending direction of the holding portion 44 and the extending direction of the projecting piece 20 are substantially aligned and adjacent to each other when overlapped with the back surface 12b of the base material 12 at the winding position. The gap between the portions 44 and 44 and the gap between the adjacent projecting pieces 20 and 20 are configured to be aligned in the front and back direction (thickness direction) of the base material 12. That is, the winding means 38 for winding the corner terminal 18 pushes the corner terminal 18 between the protruding pieces 20 and 20 by the fixing means 50 through the space between the adjacent holding parts 44 and 44 when the holding part 44 is in the winding position. Configured to be possible. In the embodiment, the winding means 38 for winding the corner terminal 18 has four holding portions 44 arranged at regular intervals.

  The fixing means 50 includes a fixing portion 52 that presses and joins the terminals 17 and 18 of the skin material 16 and a moving mechanism such as a robot hand that can move the fixing portion 52 in three dimensions. In the embodiment, the terminals 17 and 18 held by the holding portion 44 at the winding position are fixed to the back surface 12 b of the base material 12 by ultrasonic welding by fine ultrasonic vibration generated by the fixing portion 52. The fixing portion 52 is formed to be narrower than the interval between the adjacent holding portions 44 and 44, and can be inserted between the holding portions 44 and 44. Here, the fixing portion of the embodiment is a rod-like body having an outer shape that is narrower than the interval between the adjacent protrusions 20 and 20, and is interposed between the protrusions 20 and 20 via the holding portions 44 and 44. The corner terminal 18 can be pushed in.

(Effects of Example)
Next, the operation of the embodiment will be described. When the vehicle interior member 10 is manufactured by winding the skin material 16 around the base material 12 using the terminal processing device described above, the skin material 16 and the base material 12 are first installed in the installation recess 24 of the installation base 22. Here, even if the base material 12 in which the skin material 16 is bonded to the front surface 12a with an adhesive or the like is installed in the installation recess 24 so that the back surface 12b of the base material 12 faces the outside, the skin material 16 is installed in the installation recess. 24, after applying the adhesive or the like on the back surface of the skin material 16 and / or the front surface 12a of the base material 12, the base material 12 may be placed on the back surface of the skin material 16 and installed in the installation recess 24. Good. As described above, the base material 12 and the skin material 16 may be joined in advance before being installed in the installation recess 24, or the base material 12 and the skin material 16 may be joined in the installation recess 21. Good.

  The entrainment process of the terminals 17 and 18 is performed from the general terminal 17. As shown in FIG. 3, in the first processing unit 26, the general terminal 17 is moved forward by moving the entraining body 28 evacuated to the retracted position by driving the first driving unit 30 toward the advance position. The second general end edge 13B is folded back to the back surface 12b of the substrate 12 as a fulcrum. By further advancing the entrainment body 28, the general terminal 17 is sandwiched between the back surface 12 b of the base material 12 and the entrainment body 28 and pushed, and the general terminal 17 can be pulled as the entrainment body 28 advances. . When the entraining body 28 reaches the forward position, the first drive unit 30 is stopped driving, and the joining portion 34 of the joining means is inserted from the fixing port 32 of the winding body 28 and joined to the general terminal 17 facing the fixing port 32. The general terminal 17 and the base material 12 are fixed by pressing the part 34 and performing ultrasonic welding. By performing ultrasonic welding through each of the fixing ports 32, the extended end side of the general terminal 17 extends along the second general edge 13 </ b> B while the general terminal 17 is held in a state of being pulled by the entrainment body 28. Can be fixed at multiple locations. Thus, since the general terminal 17 is fixed while being pulled and pressed by the winding body 28, the general terminal 17 can be wound with the second general edge 13B stretched so as not to be wrinkled. It is possible to prevent the general terminal 17 from being lifted on the back side of the material 12.

  A process of winding the general terminal 17 around the first general edge 13A by the second processing unit 36 will be described. At the standby position, the distal end of the holding portion 44 is inserted into the general terminal 17 and the general terminal 17 extending from the first general edge 13A is held in a linearly extended state. By rotating the winding arm 42 by driving the winding drive unit 46, the holding unit 44 is rotated and displaced from the standby position toward the winding position, and the general terminal 17 supports the first general edge 13A as a fulcrum accordingly. Then, it is folded back to the back side of the substrate 12. Here, the holding portion 44 is configured to be rotationally displaced so that the holding portion of the general terminal 17 gradually moves away from the first general edge 13A and approaches the back surface 12b of the base material 12 as it goes from the standby position to the winding position. ing. As a result, the winding means 38 can fold the general terminal 17 in a state in which the general terminal 17 is always stretched, and can stretch the edge covering portion covering the first general edge 13A of the general terminal 17 by pulling the general terminal 17. it can. When the holding part 44 reaches the winding position, the general terminal 17 folded back at the first general edge 13A along the back surface 12b of the base member 12 is kept pulled by the holding part 44, and the fixing means 50 is kept. The general terminal 17 is pressed against the back surface 12 b of the substrate 12 by pressing the fixing portion 52 between the holding portions 44 and 44 and / or a position removed from the holding portion 44. Then, the general terminal 17 is welded and fixed to the back surface 12 b of the substrate 12 by ultrasonic welding with the fixing portion 52.

  A process of winding the corner terminal 18 around the convex corner edge 14 by the second processing unit 36 will be described. At the standby position, the tip of the holding portion 44 is inserted into the corner terminal 18 and the corner terminal 18 extending from the convex corner edge 14 is held in a linearly extended state (see FIG. 4A). By driving the winding drive unit 46 and rotating the winding arm 42, the holding unit 44 is rotated and displaced from the standby position toward the winding position, and accordingly, the corner terminal 18 supports the convex corner edge 14 as a fulcrum. Then, it is folded back to the back side of the substrate 12 (see FIGS. 4B and 4C). Here, the holding portion 44 is configured to be rotationally displaced so that the holding portion of the corner terminal 18 gradually moves away from the convex corner edge 14 and approaches the back surface 12b of the base material 12 as it goes from the standby position to the winding position. ing. Thereby, the winding means 38 can fold the corner terminal 18 in a state in which the corner terminal 18 is always stretched, and can stretch the edge covering portion that covers the convex corner edge 14 in the corner terminal 18 by pulling the corner terminal 18. it can. When the holding portion 44 reaches the winding position, the corner terminal 18 that is folded back at the convex corner edge 14 along the back surface 12b of the base material 12 is kept pulled by the holding portion 44, and the fixing means 50 The general terminal 17 is pressed against the back surface 12 b of the substrate 12 by pressing the fixing portion 52 between the holding portions 44, 44 and a position away from the holding portion 44. Here, the fixing portion 52 is inserted between the holding portions 44 and 44 so as to be bridged between the extended ends of the plurality of protruding pieces 20 and 20 arranged corresponding to the convex corner edge 14. The corner terminal 18 is pressed and pushed between the projecting pieces 20 and 20 (see FIG. 4D). Thereby, the corner terminal 18 is brought close so that it may be folded in a wave shape on the back side of the base material 12. Then, the corner terminal 18 is welded and fixed to the back surface 12 b of the substrate 12 by ultrasonic welding by the fixing portion 52. The corner terminal 18 is guided to the projecting piece 20 by repeating pushing between the holding parts 44 and 44 and fixing between the projecting parts 20 and 20 by the fixing part 52 between the holding parts 44 and 44. It is fixed in the folded state.

  The vehicle interior member 10 includes a corner terminal 18 that is folded back at a convex corner edge 14 between a plurality of projecting pieces 20 that are adjacent to the convex corner edge 14 and provided on the back surface 12b of the base 12. It is fixed to the back surface 12b of the substrate 12 in a pressed state. That is, an excess portion of the corner terminal 18 that is generated by winding the corner terminal 18 along the curved convex corner edge 14 is brought into a folded state by being pushed toward the back side of the base material 12 by being pushed into the projecting piece 20. can do. Thereby, the vehicle interior member 10 can be extended so that wrinkles do not occur in the skin material 16 wound around the convex corner edge 14. Moreover, since the corner terminal 18 of the skin material 16 is folded on the back side of the base material 12 with reference to the protrusion 20 set in advance on the base material 12, the finish of the skin material 16 wound around the convex corner edge 14 is finished. A state is stabilized and the quality of the vehicle interior member 10 can be improved.

  The vehicle interior member 10 has a protrusion dimension of the protrusion 20 from the back surface 12b of the base material 12 set to be equal to or greater than the skin thickness. Therefore, when the corner terminal 18 is pushed between the protrusions 20 and 20, the vehicle interior member 10 A certain amount of drop can be taken between the portion pushed between the projecting pieces 20 and 20 at the corner terminal 18 and the portion supported by the extended end of the projecting piece 20, and the skin material pushed between the projecting pieces 20. It is possible to appropriately guide the 16 corner terminals 18 to be folded. That is, the corner terminal 18 is moved closer to the back side of the base material 12 to extend the edge covering portion of the skin material 16 covering the convex corner edge 14 in the extending direction of the convex corner edge 14. And it is possible to more suitably prevent wrinkles from occurring on the end surface covering portion. In the vehicle interior member 10, the interval between the adjacent projecting pieces 20 and 20 is set to be twice or more the skin thickness, so that the corner terminal 18 can be appropriately pushed between the projecting pieces 20 and 20. Therefore, it can guide appropriately so that the corner terminal 18 of the skin material 16 pushed in between the projecting pieces 20 and 20 can be folded, and it becomes an edge covering portion covering the convex corner edge 14 in the skin material 16. Wrinkles can be more preferably prevented.

  According to the method for manufacturing the vehicle interior member 10 described above, the corner terminal 18 of the skin material 16 that is folded back at the convex corner edge 14 is provided on the back surface 12 b of the base material 12 adjacent to the convex corner edge 14. By pushing between the plurality of projecting pieces 20, 20, the corner terminal 18 is guided by the projecting piece 20, so that the corner terminal 18 can be folded on the back side of the substrate 12. That is, since the surplus portion of the corner terminal 18 in the skin material 16 generated by winding the skin material 16 around the convex corner edge 14 of the base material 12 is brought together and fixed in a folded state on the back side of the base material 12. The skin material 16 can be wound around the convex corner edge 14 of the base material so as not to cause wrinkles. Further, by pushing the corner terminal 18 between the projecting pieces 20 and 20 by the back side of the base material 12, the edge covering portion of the skin material 16 covering the convex corner edge 14 is It can extend in the extending direction of the convex corner edge 14. Therefore, it is possible to easily obtain the vehicle interior member 10 in which the edge covering portion of the skin material 16 covering the convex corner edge 14 is finished finely.

  According to the manufacturing method, the winding operation of the corner terminal 18 around the convex corner edge 14 of the substrate 12 can be automated by the winding means 38 and the fixing means 50 as the pushing means. It is possible to reduce the trouble of winding the terminal 18. Here, the corner piece 18 wound around the back surface 12b of the base material 12 so as to cover the plurality of protruding pieces 20 by the winding means 38 is held by the winding means 38, and the protruding piece 20 is fixed by the fixing portion 52 of the fixing means 50. , 20 and is welded to the back surface of the substrate 12 in accordance with the pressing. That is, the corner terminal 18 can be fixed to the base material 12 while the end edge covering portion of the corner terminal 18 is extended by being pushed between the projecting pieces 20, 20, and the vehicle interior member 10 is finished. Can be further improved. Moreover, since the adhering means 50 is used as the pushing means, the configuration of the terminal processing apparatus can be simplified. In addition, by pushing the corner terminal 18 with the protruding piece 20 provided on the back surface 12b of the base material 12 as a reference, a state where the corner terminal 18 is folded on the back surface 12b of the base material 12 can be stably formed. Further, since the corner terminal 18 can be stably pulled by the setting means 38 by the winding means 38, the finished state of the skin material 16 wound around the convex corner edge 14 is stabilized, and the quality of the obtained vehicle interior member 10 is obtained. Can be improved. Moreover, according to the entraining means 38, the corner terminal 18 can be continuously pulled with a force that is difficult to apply manually, so the end covering portion of the skin material 16 is appropriately stretched and the end covering portion is The generation of wrinkles can be more suitably prevented.

  The corner terminal 18 is operated by operating the winding means 38 so that the holding portion of the corner terminal 18 by the winding means 38 is rotationally displaced along a trajectory gradually separating from the convex corner edge 14 on the back side of the substrate 12. While pulling, the convex corner edge 14 can be folded back to the back side of the substrate 12 as a fulcrum. In this way, the convex corner end edge 14A of the base material 12 is configured by the standing wall 12c extending to the back side of the base material by setting so that the holding portion of the corner terminal 18 by the winding means 38 is rotationally displaced. However, the corner terminal 18 can be appropriately wound around the convex corner edge 14A.

(Change example)
The present invention is not limited to the configuration of the embodiment described above, and can be modified as follows, for example.
(1) The holding part is not limited to the structure of the embodiment as long as it can hold and pull the terminal of the skin material, and a holding means for holding the terminal of the skin material is provided at the tip of the holding part. For example, an appropriate configuration can be adopted. Further, the shape of the holding portion is not limited to the rod-shaped body, and may be a plate shape.
(2) The winding means of the second processing unit may be configured to slide and move similarly to the winding body of the first processing unit.
(3) The method of fixing the end of the skin material to the base material is not limited to ultrasonic welding or thermal welding with a hot blade or the like, but by pressing by a fixing means with an adhesive previously applied to the base material or / and the skin material. Joining or stopping with a needle by a tucker as a fixing means may be employed. As shown in FIG. 6, the tucker 50 as the fixing means includes a fixing portion 52 that can move forward and backward so as to come in contact with and separate from the back surface of the base material 12 between the adjacent holding portions 44 and 44. The corner terminal 18 of the skin material 16 is inserted by a fixing portion 52 which is inserted from between the holding portions 44 and 44 holding the corner terminal 18 and presses the corner terminal 18 against the back surface of the base material 12 between the projecting pieces 20 and 20. The needle 54 is driven into the base material 12 via, and the corner terminal 18 and the base material 12 are tacked. As a result, the corner terminal 18 is sandwiched by the head portion 50b connecting the two needle portions 54a and 54a of the needle 54, and the corner terminal 18 is tacked to the back surface 12b of the base member 12. At this time, the corner terminal 18 that is folded back along the back surface of the base material 12 by the winding means 38 and is held by the holding portion 44 is tacked to the base material 12, so that the corner terminal 18 can be prevented from being loosened. The finish of the skin material 16 wound around the convex corner edge 14 of the material 12 can be cleaned. Here, the needle 54 is driven so that the head 54 b is parallel to the protruding piece 20. Note that the shape of the needle is not limited to a substantially U-shape, and may be a shape such as a heel, for example.
(4) In the examples, the skin material having a laminated structure having a surface layer part and a back layer part has been described as an example, but a skin material without a back layer part may be used. Moreover, in the Example, although the part which covers the convex-corner edge in the terminal of a skin material was extended | expanded, what is necessary is just to make it the state which tensioned the part which covers the convex-corner edge of this terminal so that it may not be wrinkled. That is, the “stretched state” in the present invention includes a stretched state without wrinkles.
(5) The fixing means and the pushing means are provided separately, and after the corner end of the skin material is pushed between the projecting pieces by the pushing means, the corner is fixed by the fixing means at a position deviated between the projecting pieces or between the projecting pieces. The terminal may be fixed.
(6) The joining means of the first processing unit and the fixing means of the second processing unit can be shared. That is, the terminal of the skin material may be fixed by one or a smaller number of fixing means (joining means) than the processing part.
(7) In the embodiment, a skin material without a slit is used in the terminal, but a skin material in which a slit is provided in a portion that does not affect the pulling of the terminal during entrainment, such as a boundary between a general terminal or a corner terminal and a general terminal. May be used. In addition, a slit is set smaller than the dimension wound in the back surface of a base material in the terminal of skin material.

12 base material, 12a surface, 12b back surface, 14 convex corner edge, 16 skin material,
18 corner terminals (terminals), 20 protrusions, 38 entrainment means,
50 Adhering means (pushing means)

Claims (5)

In the vehicle interior member that covers the surface of the base material with a skin material and fixes the terminal of the skin material wound from the front side to the back side of the base material on the back surface of the base material,
Adjacent to the convex corner edge that curves to protrude outward in the substrate, it has a plurality of protrusions provided on the back surface of the substrate,
The plurality of projecting pieces protrude from the back surface of the base material so as to extend from the convex corner edge toward the curved center side of the convex corner edge, and are arranged in parallel.
The end of the skin material that is folded back at the edge of the convex corner and covers the protruding piece is fixed to at least one of the back surface of the base material and the protruding piece while being pushed between adjacent protruding pieces. A vehicle interior member.   The vehicle interior member according to claim 1, wherein the protruding piece has a protruding dimension from the back surface of the base material set to be equal to or greater than a thickness of the skin material.   The vehicle interior member according to claim 1 or 2, wherein an interval between the adjacent projecting pieces is set to be twice or more a thickness of the skin material. A method for manufacturing a vehicle interior member obtained by covering the surface of a base material with a skin material, and fixing the terminal of the skin material wound from the front side to the back side of the base material on the back surface of the base material,
By the winding means holding the end of the skin material, the terminal is pulled back at the convex corner edge that curves so as to be convex toward the outside, and is wound around the back side, and protrudes to the back side of the base material Holding the terminal in a state of covering the plurality of formed protrusions and being along the back surface of the base material,
Push the terminal of the skin material covering the plurality of protruding pieces between adjacent protruding pieces by pushing means, and bring the terminals close together,
A method for manufacturing a vehicle interior member, wherein an end of the skin material is fixed to at least one of a back surface of the base material and the protruding piece.   By operating the winding means so that the holding portion of the terminal by the winding means is rotationally displaced along a trajectory that gradually moves away from the convex corner edge on the back side of the base material, the convex shape is pulled while pulling the terminal. 5. The method for manufacturing a vehicle interior member according to claim 4, wherein a corner edge is involved and the end of the skin material is welded or tacked to the back surface of the base material.

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