JP2016068348A - Vehicle interior member production method and terminal processing unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for winding a terminal of a skin material to a corner end edge of a substrate, with good finishing, in production of a vehicle interior member.SOLUTION: A holding part 34 provided on winding means 32 holds corner terminals 18 of a skin material 16 so as to be overlapped in a manner that a person's hands are joined in prayer. The winding means 32 is moved along a rear face 12b of a substrate 12, thereby the corner terminals 18 are folded to a rear side of the substrate 12 and are pulled, so that a part for covering salient-state corner end edges 14 of the substrate 12 on the terminal 18 is extended. Then, the corner terminal 18 wound to the rear face 12b of the substrate 12 is fixed to the rear face 12b of the substrate 12, by fixing means, in a production method of the vehicle interior member.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a method for manufacturing a vehicle interior member in which a terminal of a skin material covering a surface of a base material is wound around and fixed to the back surface of the base material, and a terminal processing device used in the manufacturing method.

  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 in view of the above-described problems related to the prior art, and it is proposed to suitably solve these problems, and the manufacturing of a vehicle interior member in which the skin material is finished and well wound around the corner edge of the base material. It is an object of the present invention to provide a terminal processing apparatus used in the method and the manufacturing method thereof.

In order to overcome the above-mentioned problems and achieve the intended purpose, a method for manufacturing a vehicle interior member according to claim 1 of the present application is as follows.
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,
The holding part provided in the entraining means holds the end of the skin material so as to overlap in the shape of a palm,
By moving the entrainment means along the back surface of the base material, from the outside of the convex corner edge that curves outwardly in the base material, toward the center of curvature of the convex corner edge. Pulling the end of the skin material, the portion covering the convex corner edge at the end is in a stretched state,
The gist is that the terminal wound on the back surface of the base material is fixed to the back surface of the base material by a fixing means.
According to the first aspect of the invention, the skin material produced by winding the skin material around the convex corner edge of the base material by holding the end of the skin material in a palm-like shape by the holding portion of the winding means. The surplus part of And since the terminal is pulled in a state where the surplus portion of the skin material is brought close to and held, the skin material can be wound around the convex corner edge of the substrate so as not to be wrinkled. Moreover, the winding | wrapping operation | work of the terminal to the convex-shaped corner edge of the base material in a skin material can be automated by a winding means and a fixing means, and the effort concerning winding of the terminal of a skin material can be reduced. Moreover, since the terminal can be stably pulled by the winding means, 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 2, as the entraining means is moved from the outside of the convex corner edge to the curved center side, the end of the skin material that rises from the convex corner edge to the back side is formed in a slit shape. The gist is that the terminal is received by the holding part and guided by the holding part so as to overlap in the form of a palm, and the terminal overlapped in the form of a palm is sandwiched on the closed end side of the holding part. To do.
According to the second aspect of the present invention, by moving the entraining means, the end of the skin material is received by the holding portion, and the received end can be overlapped in the shape of a palm and held on the closed end side of the holding portion. . As described above, since the terminal of the skin material can be overlapped and held in the shape of a palm only by moving the winding means, it is possible to reduce the trouble of winding the terminal of the skin material.

The gist of the invention according to claim 3 is that the entraining means moves along a path toward the center of curvature through the central portion in the extending direction of the convex corner edge.
According to the invention which concerns on Claim 3, since the terminal of a skin material is pulled with sufficient balance, the finish of the skin material wound around the convex corner edge can be made more beautiful.

In the invention according to claim 4, as the entraining means is moved from the outside of the convex corner edge to the curved center side, a portion of the terminal removed from the holding portion is pushed by the entraining means. The gist.
According to the invention which concerns on Claim 4, the site | part removed from the holding | maintenance part in a terminal can be wound around the edge of a base material by moving a winding means.

In order to overcome the above-mentioned problems and achieve the intended purpose, a terminal processing device according to claim 5 of the present application is provided with:
A terminal processing device that winds from the front side of the base material to the back side of the base material that covers the front side of the base material that constitutes the vehicle interior member, and is fixed to the back side of the base material,
It is configured to be movable from the outer position of the convex corner edge that curves outwardly on the base material toward the curved center side of the convex corner edge, and moves from the outer position to the curved center side. And a winding means having a slit-shaped holding part that can receive the end of the skin material rising from the convex corner edge to the back side and hold it in a state of being overlapped in a palm shape,
The gist is provided with fixing means for fixing the end of the skin material, which is wound around the convex corner edge by the winding means and pulled to the back surface of the base material, to the back surface of the base material.
According to the invention which concerns on Claim 5, this skin material produced by winding a skin material around the convex-shaped corner edge of a base material by overlapping and holding the terminal of a skin material in the shape of a palm by the holding part of the winding means. The surplus part of And since the terminal is pulled in a state where the surplus portion of the skin material is brought close to and held, the skin material can be wound around the convex corner edge of the substrate so as not to be wrinkled. Moreover, the winding | wrapping operation | work of the terminal to the convex-shaped corner edge of the base material in a skin material can be automated by a winding means and a fixing means, and the effort concerning winding of the terminal of a skin material can be reduced. Furthermore, since the end of the skin material can be held in a state of overlapping with the holding portion only by moving the winding means, it is possible to reduce the labor involved in winding the end of the skin material. Moreover, since the terminal can be stably pulled by the winding means, 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.

The gist of the invention according to claim 6 is that the holding portion is formed such that the opening width becomes narrower from the open end receiving the end of the skin material toward the closed end side.
According to the invention which concerns on Claim 6, the terminal of the skin material received by the holding | maintenance part can be smoothly hold | maintained with a holding | maintenance part as the winding means moves.

In the invention according to claim 7, the holding portion holds the terminal overlapped in a palm-like shape while the opening width of the open end that receives the terminal of the skin material is larger than twice the thickness of the skin material. The gist is that the opening width on the closed end side to be formed is less than twice the thickness of the skin material.
According to the invention which concerns on Claim 7, the terminal of a skin material can be smoothly received from the open end of a holding | maintenance part, and can be overlap | superposed on a palm shape. Further, the skin material superposed in the shape of a palm can be held by being held on the closed end side of the holding portion.

In the invention according to claim 8, in the winding means, a fixing hole is formed penetratingly formed at a position facing the back surface of the base material at a winding position that moves to the curved center side and overlaps the back surface of the base material.
The fixing means is configured to be folded back along the back surface of the base material by the entraining means and to weld or tacker the terminal held by the holding portion to the back surface of the base material through the fixing hole. The gist.
According to the invention according to claim 8, since the terminal of the skin material is pressed by the winding means and the terminal is fixed to the base material by the fixing part in a state where the terminal is held by the holding part, the skin material is loosened. Can be prevented, and the finish of the skin material wound around the convex corner edge of the substrate can be made cleaner.

  According to the vehicle interior member manufacturing method and the terminal processing apparatus according to the present invention, it is possible to easily obtain a vehicle interior member in which the terminal of the skin material is well wound on 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 the preferred Example of this invention, (b) is the A section enlarged view of (a). It is a sectional side view explaining the general terminal process of an Example. It is a sectional side view explaining each process of the corner terminal processing of an example, (a) is the situation before winding a corner terminal, (b) advances a winding means, and receives a corner terminal in a holding part. The terminal is guided so as to overlap in the form of a palm, and the terminal is clamped on the closed end side of the holding part, (c) shows the situation where the entrainment means is further advanced and stopped, and (d) descends through the fixing hole. It shows the situation where the corner terminal is pressed against the back surface of the base material and welded with the fixed portion that has been removed, and (e) is welded by pressing the overlapping portion of the corner terminal against the back surface of the base material with the lowered fixed portion Indicates the situation. (f) shows the situation where the corner terminal is wound around the back surface of the base material. It is a top view explaining each process of the corner terminal process of an Example, (a) is the condition before winding a corner terminal, (b) advances a winding means, accepts a corner terminal in a holding part, and gives a palm. In this situation, the terminal is clamped on the closed end side of the holding part, (c) shows the situation where the entraining means is further advanced and stopped, and (d) is lowered through the fixing hole. Shows the situation where the corner terminal is pressed against the back surface of the base material at the fixed part, and (e) shows the state where the corner terminal overlap is pressed against the back surface of the base material at the lowered fixed part. Indicates. (f) shows the situation where the corner terminal is wound around the back surface of the base material. It is a schematic plan view of the winding means which shows the example of a change of a fixation hole. It is a sectional side view explaining corner terminal processing concerning a modification, and shows a situation where a needle is driven into a base material by a tucker through a fixing hole and the corner terminal is tacked to the base material.

  Next, a preferred embodiment of the method for manufacturing a vehicle interior member and the terminal processing apparatus according to the present invention will be described below with reference to the accompanying drawings.

  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. A convex corner end edge 14 that curves with a larger curvature than the edge 13 (a smaller radius of curvature than the general end edge 13) forms a multi-sided outer shape. 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 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. 2A, FIG. 3 and FIG. 4, the terminal processing apparatus according to the embodiment includes an installation base 20 that holds the skin material 16 and the base material 12 in an overlapped state, and a base material in the skin material 16. From a general processing portion 22 for winding a terminal (referred to as a general terminal 17) extending outward from the general edge 13 of the material 12 to the general edge 13, and from the convex corner edge 14 of the base material 12 in the skin material 16 A corner processing unit 30 is provided that winds a terminal extending outward (referred to as a corner terminal 18) around the convex corner edge 14. The terminal processing apparatus is provided with at least one general processing unit 22 corresponding to each side (each general edge 13) of the base material 12, and one corner processing unit 30 corresponding to each corner edge 14. Is provided. Note that one general processing section 22 is provided corresponding to the short general edge 13 in the substrate 12, and a plurality of groups (2 in the embodiment) corresponding to the long general edge 13 in the substrate 12. A general processing unit 22 is provided.

  The installation table 20 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 has 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 table 20 is formed in a concave shape with an opening shape that is similar to the entire outer shape (example) or partial range of the base material 12 and is larger than the outer shape of the base material 12 by the thickness (skin thickness) of the skin material 16. The installation recess 21 is accommodated in the order of the skin material 16 and the base material 12. The installation recess 21 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 back surface 12 b of the base material 12 accommodated in the installation recess 21 and the installation table 20. The periphery 20a of the installation recess 21 is arranged on substantially the same plane. And the installation stand 20 is the terminal of the skin material 16 extended outward from the edge 13 and 14 of the base material 12, when the base material 12 which laminated | stacked the skin material 16 on the front side was accommodated in the installation recessed part 21. 17 and 18 are supported by the peripheral wall of the installation recess 21 so as to be bent along the edges 13 and 14 and to rise toward the back side of the substrate 12.

  As shown in FIGS. 2A and 3, the general processing unit 22 includes a flat plate-like winding body 24 and a general driving unit 26 including an actuator such as a cylinder that reciprocates the winding body 24. ing. The general processing unit 22 presses the general terminal 17 of the skin material 16 extending outward from the corresponding general edge 13 with the entrainment body 24 so as to be wound around the back surface 12b of the base material 12 using the general edge 13 as a fulcrum. Composed. In the entrainment body 24, the contact edge 24 a that presses the general terminal 17 of the skin material 16 is formed according to the extended shape of the corresponding general edge 13 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 retracted body 24 is retracted to the outside of the installation recess 21 (outside of the corresponding general edge 13 of the base material 12 installed in the installation recess 21) by the drive of the general drive unit 26, and installed. It is configured to slide between the forward position overlapping the inside of the opening of the recess 21 (the back surface 12b of the base material 12 installed in the installation recess 21). The entrainment body 24 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 21 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 entrainment body 24 is provided with a plurality of fixing holes 25 penetrating in the thickness direction at a position biased toward the contact edge 24a side, and the bonding portion 28 of the bonding means is inserted through the fixing holes 25. This is possible (see FIG. 3). Note that a plurality of fixing holes 25 are arranged in the winding body 24 along the contact edge 24a. The joining means is configured to move the joining portion 28 three-dimensionally by a moving mechanism such as a robot hand. In the embodiment, the general terminal 17 pressed by the winding body 24 at the forward movement position is fixed to the back surface 12 b of the substrate 12 by ultrasonic welding by fine ultrasonic vibration generated at the joint portion 28.

  As shown in FIGS. 2, 4, and 5, the corner processing unit 30 includes a winding unit 32 having a holding unit 34 that holds a corner terminal 18 that covers the convex corner edge 14 in the skin material 16, and The winding drive means 38 which consists of actuators, such as a cylinder which reciprocates this winding means 32, and the adhering means which adheres the corner terminal 18 wound in the back surface 12b of the base material 12 to the back surface 12b of the base material 12 are provided. . The corner processing unit 30 holds the corner terminal 18 so as to be overlapped with the winding means 32 and pulls the corner terminal 18 so as to be folded back to the back side of the base material 12. It is comprised so that it may adhere to the back surface 12b of the base material 12.

  As shown in FIG. 2 (b), the winding means 32 has a holding portion 34 formed in a slit shape, and the flat plate-like main body is arranged so that its plate surface is parallel to the back surface 12 b of the substrate 12. Has been. Further, the winding means 32 is moved by the winding driving means 38 to the outer position of the convex corner edge 14 of the substrate 12 and from the outer position to the curved center side (called the winding direction) of the convex corner edge 14. It is comprised so that it may reciprocate along the back surface 12b of the base material 12 between the winding positions. Here, the winding means 32 is a linear movement path along a line (winding line) connecting the central portion of the convex corner end edge 14 and the curved center of the convex corner end edge 14, and the back surface of the substrate 12. It moves in parallel with 12b. Further, the winding means 32 is configured such that the open end of the holding portion 34 is opposed to the corner terminal 18 rising from the opening edge of the installation concave portion 21 with the open end of the holding portion 34 retracted to the outside of the installation concave portion 21 at the outer position. It is supposed to be. When the winding means 32 moves from the outer position to the front side in the winding direction, the holding portion 34 overlaps the opening inside of the installation recess 21 and overlaps the back surface 12 b of the base material 12 installed in the installation recess 21. Thus, the winding means 32 of the embodiment is configured such that the holding portion 34 formed on the winding means 32 moves back and forth in the winding direction as the winding means 32 moves. The winding means 32 is formed so that the front end edge in the winding direction (referred to as the front end edge 33) matches the extended shape of the convex corner edge 14 except for the position where the holding portion 34 is formed. The winding means 32 is arranged so that the front end edge 33 of the winding means 32 extends along the outer side of the convex corner edge 14 at the outer position. The winding means 32 is configured such that the front edge 33 of the winding means 32 in the winding position moves to a position away from the corner edge 14 rather than the extension dimension from the corner edge 14 at the corner terminal 18. The corner terminal 18 can be pulled and extended by the winding means 32. Here, the movement of the winding means 32 (holding portion 34) from the outer position to the winding position toward the front side in the winding direction is referred to as advance, and the winding means 32 (holding portion 34) from the winding position to the outer position toward the rear side in the winding direction. Movement is called retreat.

  As shown in FIG. 2B, the holding portion 34 is formed in a slit shape that penetrates the winding means 32 in the vertical direction and opens to the front side in the winding direction. The holding portion 34 extends from the front edge 33 of the winding means 32 toward the rear side in the winding direction. In addition, in the holding part 34, a straight line passing through the central part between the opening edges forming the slit is positioned on the winding line and linearly extends along the winding line. Further, in the holding portion 34, the open end 34 a that is the front side in the winding direction of the holding portion 34 at the outer position is opposed to the central portion in the extending direction of the convex corner edge 14 (referred to as the central portion of the corner terminal 18). ing. In addition, the holding portion 34 has an opening edge forming a slit that intersects the winding direction and is opposed to the direction along the back surface 12 b of the substrate 12. In the holding part 34, the opening width of the open end 34 a is set to be larger than twice the thickness of the skin material 16. The holding portion 34 has an opening width on the closed end 34b side, which is the rear side in the winding direction, set to be equal to or less than twice the thickness of the skin material 16, and holds the corner terminal 18 overlapped in a palm shape on the closed end 34b side. Configured to be able to. Furthermore, the holding portion 34 has a V shape in which the opening width becomes narrower from the open end 34a toward the closed end 34b. Then, as the winding means 32 advances, the holding portion 34 receives the corner terminal 18 from the open end 34a of the holding portion 34 and guides the corner terminal 18 so as to overlap with the palm, and the corner terminal 18 overlapped with the closing end 34b side. The corner terminal 18 is held so that the corner terminal 18 does not slip or come off from the holding portion 34 when the winding means 32 further advances.

  The winding means 32 according to the embodiment is configured to press the portion of the corner terminal 18 that is removed from the holding portion 34 that is continuous with the central portion of the corner terminal 18 to wind the corner terminal 18 around the back surface 12 b of the base material 12. The entraining means 32 is configured to push a portion of the front end edge 33 that is detached from the holding portion 34 of the corner terminal 18. The winding means 32 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 21 at the winding position. The part which remove | deviated from the holding | maintenance part 34 in the corner terminal 18 is inserted | pinched between the back surface 12b of 12 and the back surface 12b of the base material 12. FIG. Further, the winding means 32 is provided with a plurality of fixing holes 36 penetrating in the thickness direction at a position facing the back surface 12b of the substrate 12 at the winding position. In the winding means 32, a plurality of fixing holes 36 are arranged close to the holding portion 34. In the embodiment, two fixing holes 36 are provided at positions sandwiching the closed end 34 b side of the holding portion 34 in a direction intersecting the winding direction, and one fixing hole 36 is provided on the rear side of the closing end 34 b in the holding portion 34 in the winding direction. Is provided.

  As shown in FIGS. 4 and 5, the fixing means has a fixing portion 40 that can be inserted through the fixing hole 36. The fixing means welds the terminal 18 to the back surface 12b of the base material 12 with the corner terminal 18 held by the holding part 34 by the fine ultrasonic vibration generated in the fixing part 40 through the fixing hole 36. . The fixing means is configured to be able to move three-dimensionally by a moving mechanism such as a robot hand. The fixing means of the embodiment is welded by bringing the corner terminal 18 that overlaps in a palm shape and protrudes toward the back side of the base material 12 along the back surface 12b of the base material 12 with the winding means 32 retracted from the winding position. Also used when doing.

(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 21 of the installation base 20. 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 21 so that the back surface 12b of the base material 12 faces the outside, the skin material 16 is not installed. After being installed on 21, an adhesive or the like is applied to the back surface of the skin material 16 or / and the surface 12 a of the base material 12, and the base material 12 is placed on the back surface of the skin material 16 and installed in the installation recess 21. 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 21, or the base material 12 and the skin material 16 may be joined in the installation recess 21. Good. By installing the skin material 16 and the base material 12 in the installation recess 21, the peripheral wall of the installation recess 21 formed so as to open according to the outer shape of the base material 12 extends from the edges 13 and 14 of the base material 12. The terminals 17 and 18 of the skin material 16 to be bent are bent and held in this state so as to stand up toward the back side of the base material 12.

  The terminal entrainment process is performed from the general terminal 17 by the general processing unit 22. As shown in FIG. 3, in each of the general processing units 22, the general terminal 17 is brought into the retracted position by advancing the retracted body 24 retracted to the retracted position by the drive of the general drive unit 26 toward the forward movement position. The contact edge 24a is pushed back to the back surface 12b of the substrate 12. By further advancing the entrainment body 24, the general terminal 17 is sandwiched between the back surface 12 b of the base material 12 and the entrainment body 24 and pushed, and the general terminal 17 can be pulled as the entrainment body 24 advances. . When the entrainment body 24 reaches the advance position, the driving of the general drive unit 26 is stopped, the joining portion 28 of the joining means is inserted from the fixing port 25 of the winding body 24, and the joining portion is connected to the general terminal 17 facing the fixing port 25. The general terminal 17 and the base material 12 are fixed by pressing 28 and performing ultrasonic welding. By performing ultrasonic welding through each of the fixing ports 25, the extended end side of the general terminal 17 is held at a plurality of locations along the general edge 13 while the general terminal 17 is held in a state of being pulled by the winding body 24. Can stick. Thus, since the general terminal 17 is fixed while being pulled and pressed by the winding body 24, the general terminal 17 can be wound in a state in which the general end 13 is stretched so as not to be wrinkled. It is possible to prevent the general terminal 17 from being lifted on the back side.

  Next, each corner processing unit 30 performs a process for winding the corner terminal 18. When the entraining means 32 retracted to the outer position is moved toward the entrainment position by the entraining drive means 38 (see FIGS. 4A and 5A), the corner terminal rising on the convex corner edge 14 18 is opposed to the open end 34 a of the holding portion 34, and the front edge 33 of the winding means 32 comes into contact with a portion of the terminal 18 that is out of the holding portion 34. When the winding means 32 is further advanced, the winding means 32 receives the central portion of the corner terminal 18 from the open end 34 a of the holding portion 34. Further, as the winding means 32 advances, the winding means 32 crosses the winding portion in the holding section 34 with the central portion of the corner terminal 18 received in the holding section 34 and extends in the direction along the back surface 12b of the substrate 12. Along the opposing opening edges, the portions extending in different directions from the central portion of the corner terminal 18 are guided toward each other so as to overlap each other. The portion that is received by the holding portion 34 and overlaps with the palm is called an overlapping portion 18a. Further, the winding means 32 pushes a portion of the corner terminal 18 that comes into contact with the holding portion 34 away from the holding portion 34 by the front end edge 33 and folds the portion back to the back surface 12b of the substrate 12. When the winding means 32 is further advanced, the winding means 32 clamps the overlapping portion 18a of the corner terminal 18 on the closed end 34b side where the opening width of the holding portion 34 is formed to be twice or less than the skin material 16, and The terminal 18 is held (see FIG. 4B and FIG. 5B). At this time, the winding means 32 closes the overlapping portion 18a of the corner terminal 18 along the opening edge of the holding portion 34 formed so that the opening width becomes narrower from the open end 34a toward the closed end 34b side. Guide to end 34b.

  When the winding means 32 is further advanced in a state where the corner terminal 18 is held by the holding portion 34 (see FIGS. 4 (c) and 5 (c)), the winding means 32 causes the overlapping portion 18a of the corner terminal 18 to move. Pulling forward in the winding direction, the portion of the skin material 16 covering the convex corner edge 14 (called the edge covering portion) is extended. In addition, the winding means 32 pushes the corner terminal 18 by pinching the part of the corner terminal 18 that is removed from the center portion between the winding means 32 and the back surface of the base material 12 by the advancement of the winding means 32. Is supposed to pull. The driving of the winding driving means 38 is stopped, the corner terminal 18 is held by the holding portion 34, the winding means 32 is stopped while the terminal 18 is pulled, and the fixing portion 40 of the fixing means is fixed to the base member 12. It moves so that it may approach toward the back surface 12b (refer FIG.4 (d) and FIG.5 (d)). The fixing portion 40 passes through the fixing hole 36 of the winding means 32 and presses a portion of the corner terminal 18 held by the holding portion 34 close to the holding portion 34 against the back surface 12 b of the substrate 12. Then, the corner terminal 18 and the base material 12 are ultrasonically welded by the fixing portion 40, so that the corner terminal 18 is fixed to the base material 12 while being held by the holding portion 34. When the winding means 32 is retracted to the outer position (see FIGS. 4 (e) and 5 (e)), the holding part 34 moves the opening edge of the holding part 34 from the closed end 34b side to the open end 34a side. The corner terminal 18 is guided, and the holding of the corner terminal 18 by the holding unit 34 is released. At this time, since the periphery of the overlapping portion 18a of the corner terminal 18 is welded by the fixing portion 40, the corner terminal 18 folded back on the back surface 12b of the base member 12 does not loosen in a stretched state. The fixing portion 40 of the fixing means is moved so as to approach the back surface 12b of the base member 12 at the overlapping portion 18a of the corner terminal 18 (FIGS. 4E and 5E). At this time, the overlapping portion 18a of the corner terminal 18 is in a state along the back surface 12b of the base material 12 by ultrasonically welding the portion of the corner terminal 18 overlapped in the palm-like shape to the back surface 12b of the base material 12. (See FIG. 4 (f) and FIG. 5 (f)).

  According to the winding process of the corner terminal 18 described above, the corner terminal 18 is held and held by the holding portion 34 of the winding means 32 so as to overlap the palm, so that the curved corner The work of bringing the excess portion of the corner terminal 18 caused by winding the corner terminal 18 along the corner edge 14 can be mechanically performed by the winding means 32. Then, the corner terminal 18 is held in the state in which the corner terminal 18 is held by the holding portion 34 so as to draw an excess portion of the corner terminal 18 generated by winding the corner terminal 18 of the skin material 16 around the convex corner edge 14 of the base material 12. Since it adheres to the back surface 12b of 12, the skin material 16 can be wound around the convex corner edge 14 so as not to cause wrinkles. In addition, a series of steps for winding the corner terminal 18 around the convex corner edge 14 can be automated by the winding means 32, the winding driving means 38, and the fixing means, and the labor required for winding the corner terminal 18 can be reduced. it can. Further, in order to wind the corner terminal 18 around the convex corner edge 14, it is not necessary to form a slit or the like in the corner terminal 18. Therefore, the manufacturing efficiency of the vehicle interior member 10 can be dramatically improved.

  According to the winding process of the corner terminal 18 described above, when the winding means 32 moves forward, the central portion of the corner terminal 18 is received by the open end 34a of the holding portion 34 facing the central portion of the corner terminal 18. Then, as the winding means 32 advances from the outer position, the corner terminal 18 can be received in the holding portion 34 and held in the form of a palm, so that the labor involved in winding the corner terminal 18 can be reduced. . Moreover, since the shape of the holding | maintenance part 34 is constant, the corner terminal 18 can always be piled up in the same palm shape similarly, and the state which approaches the corner terminal 18 on the back surface 12b of the base material 12 can be stabilized. Further, since the corner terminal 18 can be stably pulled by the setting means 32 with the winding means 32, 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 32, the corner terminal 18 can be continuously pulled with a force that is difficult to apply manually, so that the edge covering portion of the skin material 16 is appropriately stretched and the edge covering The generation of wrinkles in the portion can be more suitably prevented.

  According to the winding process of the corner terminal 18, since the opening width of the open end 34 a of the holding portion 34 is larger than twice the thickness of the skin material 16, the winding means 32 can be moved forward without compressing the skin material 16. The corner terminal 18 can be received in the holding portion 34. Furthermore, the opening width on the closed end 34b side of the holding portion 34 is formed to be twice or less that of the skin material 16, and the holding portion 34 is formed so that the opening width becomes narrower from the open end 34a toward the closed end 34b side. The corner terminal 18 received in the holding part 34 can be smoothly held along the holding part 34 on the closed end 34 b side of the holding part 34. Further, the holding unit 34 is provided in the winding means 32 so that the straight line passing through the central portion between the opening edges forming the slit of the holding unit 34 is located on the winding line, and the central portion of the corner terminal 18 is held by the holding unit 34. Therefore, the central portion of the corner terminal 18 can be pulled with priority, and the corner terminal 18 can be pulled with good balance. Further, by advancing the winding means 32, the front end edge 33 of the winding means 32 can be pushed back to the back surface 12 b of the base material 12 by pushing the portion that continues to the center of the corner terminal 18. In addition, the corner terminal 18 can be pulled by pinching and pinching a portion connected to the central portion of the corner terminal 18 between the entraining means 32 and the back surface 12b of the substrate 12.

  The corner terminal 18 is fixed to the base material 12 by the fixing portion 40 through the fixing hole 36 of the winding means 32, whereby the corner terminal 18 is held by the holding portion 34, and is wound around the convex corner edge 14 by the winding means 32. Since the corner terminal 18 is welded to the base material 12 in a state of being hung and pulled and pressed against the back surface 12b of the base material 12, the corner terminal 18 can be prevented from being loosened, and the convex corner edge 14 of the base material 12 can be prevented. The finish of the wound skin material 16 can be made more beautiful. In addition, after releasing the holding of the corner terminal 18 by the holding part 34, the corner terminal 18 that overlaps in a palm shape and protrudes to the back side of the base material 12 is aligned with the back surface 12 b of the base material 12 by the fixing part 40. By fixing to 12, the finish of the corner terminal 18 wound on the back side of the base material 12 can be made more beautiful.

(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 unit is not limited to the configuration of the embodiment as long as it can hold and pull the end of the skin material so as to overlap each other in the shape of a palm. For example, an appropriate configuration can be adopted.
(2) In the embodiment, an example in which the slit-shaped holding portion is formed so that the opening width becomes narrower from the open end toward the closed end side is described. Until then, the opening width is constant, and the holding portion may be formed so that the opening width becomes narrower from the midway position toward the closed end side.
(3) Although the embodiment has been described by taking a flat plate-like winding means as an example, the shape of the winding means is not particularly limited as long as a holding portion is provided. For example, the linear member may be bent so as to define the outer shape of the slit-shaped holding portion.
(4) The moving direction of the entraining means and the extending direction of the holding part are not limited to the direction along the line from the central part of the convex corner edge toward the curved center of the convex corner edge, but the convex corner edge If it is a direction which goes to the curve center side located inside, it can adjust suitably according to the shape of a convex corner edge, or a corner terminal.
(5) A terminal extending outward from the straight line or a gently curved end edge connected to the convex corner edge of the base material may be pushed by the winding means.
(6) The shape of the fixing hole of the winding means is not limited to a circle as long as the fixing portion of the fixing means can be inserted. For example, as shown in FIG. 6, a rectangular fixing hole 36 may be formed through the winding means 32. Further, two or less or four or more fixing holes may be formed in the entraining means.
(7) The method of fixing the terminal of the skin material to the base material is not limited to ultrasonic welding or heat welding, and bonding may be performed by pressing by a fixing means with an adhesive previously applied to the base material or / and the skin material. Good. Further, the fixing means may be provided in each corner processing section, or one fixing means may be shared by a plurality of corner processing sections. In the general processing section, the fixing means of the corner processing section may be shared as the joining means.
(8) As shown in FIG. 7, a tucker for driving the needle 42 may be employed as the fixing means. In this case, the winding means 32 is formed with a fixing hole 36 through which a fixing portion 40 for striking the needle 42 of the tucker can be inserted at a position facing the back surface 12b of the substrate 12 at the winding position. The tucker drives the needle 42 into the base material 12 through the corner terminal 18 of the skin material 16 from the fixing portion 40 through the fixing hole 36. Thus, the corner terminal 18 is sandwiched between the base 42 and the head 42b connecting the two needle portions 42a, 42a of the needle 42, and the terminal 18 is tacked to the back surface 12b of the base 12. At this time, the corner terminal 18 folded back along the back surface of the base material 12 by the winding means 32 and held by the holding portion 34 is tacked to the base material 12 through the fixing hole 36, so that the corner terminal 18 is loosened. Can be prevented, and the finish of the skin material 16 wound around the convex corner edge 14 of the substrate 12 can be made clean. In addition, a plurality of needles 42 are driven into the base material 12 in a direction in which the heads 42b are parallel to each other by a tucker, or a plurality of needles 42 are driven into the base material 12 in a direction in which the heads 42b intersect each other. You can do it. 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.
(9) In the embodiments, the skin material having a laminated structure having a surface layer portion and a back layer portion has been described as an example, but a skin material without a back layer portion 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.
(10) In the embodiment, a skin material without a slit is used at the terminal, but a slit is provided at a general terminal, a slit is provided at a portion that is sandwiched between holding parts at a corner terminal and overlaps with a palm, You may use the skin material which provided the slit in the boundary with a general terminal. In addition, when the corner terminal is provided with a slit, when the corner terminal is received in the holding portion, the corner terminal can be folded with the slit as a base point to form a palm shape. In addition, a slit is set smaller than the dimension wound in the back surface of a base material in a terminal.

12 base material, 12a surface, 12b back surface, 14 convex corner edge, 16 skin material,
18 corner terminal (terminal), 32 entrainment means, 34 holding part, 34a open end,
34b closed end, 36 fixing hole, 40 fixing part

Claims (8)

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,
The holding part provided in the entraining means holds the end of the skin material so as to overlap in the shape of a palm,
By moving the entrainment means along the back surface of the base material, from the outside of the convex corner edge that curves outwardly in the base material, toward the center of curvature of the convex corner edge. Pulling the end of the skin material, the portion covering the convex corner edge at the end is in a stretched state,
A method for manufacturing a vehicle interior member, wherein the terminal wound on the back surface of the base material is fixed to the back surface of the base material by a fixing means.   As the entraining means moves from the outside of the convex corner edge to the curved center side, the end of the skin material rising from the convex corner edge to the back side is received by the holding portion formed in a slit shape. The method of manufacturing a vehicle interior member according to claim 1, wherein the terminal is guided by the holding portion so as to overlap with a palm, and the terminal overlapped in a palm shape is sandwiched on the closed end side of the holding portion.   3. The method for manufacturing a vehicle interior member according to claim 1, wherein the entraining means is moved along a straight path toward the curved center through a central portion in the extending direction of the convex corner edge.   The said winding means pushes the site | part removed from the holding | maintenance part in the said terminal by this winding means as it moves to the said curve center side from the outer side of the said convex corner edge. The manufacturing method of the vehicle interior member of description. A terminal processing device that winds from the front side of the base material to the back side of the base material that covers the front side of the base material that constitutes the vehicle interior member, and is fixed to the back side of the base material,
It is configured to be movable from the outer position of the convex corner edge that curves outwardly on the base material toward the curved center side of the convex corner edge, and moves from the outer position to the curved center side. And a winding means having a slit-shaped holding part that can receive the end of the skin material rising from the convex corner edge to the back side and hold it in a state of being overlapped in a palm shape,
Terminal processing comprising: a fixing means for fixing the end of the skin material wound around the convex corner edge by the winding means and pulled to the back surface of the base material to the back surface of the base material apparatus.   The terminal processing apparatus according to claim 5, wherein the holding portion is formed such that an opening width becomes narrower from an open end that receives a terminal of the skin material toward a closed end side.   The holding portion is formed such that the opening width of the open end that receives the terminal of the skin material is larger than twice the thickness of the skin material, and the opening width on the closed end side that holds the terminal overlapped in the shape of a palm is formed. The terminal processing apparatus of Claim 5 or 6 formed in 2 times or less of the thickness of a skin material. In the winding means, a fixing hole is formed penetratingly formed at a position facing the back surface of the base material at a winding position that moves to the curved center side and overlaps the back surface of the base material,
The fixing means is configured to be folded back along the back surface of the base material by the winding means and to weld or tacker the terminal held by the holding portion to the back surface of the base material through the fixing hole. The terminal processing apparatus as described in any one of 5-7.

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