JP6265062B2 - Method for manufacturing vehicle interior material - Google Patents

Description

  The present invention relates to a method for manufacturing a vehicle interior material.

  Conventionally, the thing of the following patent document 1 is known as a manufacturing method of the interior material for vehicles provided with a skin material. Patent Document 1 describes a manufacturing method using an upper mold and a lower mold. Specifically, the skin material is fixed to the upper mold set pin, and the base material (resin core material) is placed on the lower mold. Thereafter, the upper die and the lower die are closed to form the base material and the skin material integrally.

JP 2001-301014 A

  By the way, what is formed by sewing a plurality of skin pieces is known as a skin material. More diverse designs can be expressed by using a plurality of skin pieces. However, in the method of setting the skin material on the set pin as described in Patent Document 1, it is not possible to position the sewing portion between the adjacent skin pieces. For this reason, in the process of affixing the skin material to the base material, there is a concern that the sewn portion is displaced and the design property is lowered.

  In particular, when the skin material is composed of three or more skin pieces and the three skin pieces are arranged in one direction, other skin pieces are arranged on both sides of the skin piece arranged on the center side. Is done. That is, a sewing part is formed in the both ends of the skin piece distribute | arranged to the center side, respectively. In such a configuration having a pair of sewing portions, when the skin material is attached while positioning one sewing portion, the other sewing portion is likely to be displaced, and there is room for improvement.

  This invention is completed based on the above situations, Comprising: It aims at providing the manufacturing method of the interior material for vehicles which can suppress the position shift of a sewing part.

  The present invention comprises a base material and a skin material formed by sewing a plurality of skin pieces, and the plurality of skin pieces are arranged in a form sandwiching the first skin pieces and the first skin pieces. A method of manufacturing a vehicle interior material comprising at least two skin pieces and a third skin piece, wherein the outer peripheral edge of the first skin piece is a frame-shaped holding mold that follows the outer peripheral shape of the first skin piece. In the first skin piece, a first sewing portion formed by sewing an outer peripheral end portion on the second skin piece side and an outer peripheral end portion of the second skin piece in the first skin piece, and the first skin piece. A sewing portion holding step of holding a second sewing portion formed by sewing the outer peripheral end portion of the third skin piece side and the outer peripheral end portion of the third skin piece with a holding member, and after the sewing portion holding step. In a state where the first sewing portion and the second sewing portion are held by the holding member, The pressing is performed after the skin piece molding step, the skin piece molding step for molding the first skin piece into a product shape that follows the shape of the molding surface by pressing the molding surface against the first skin piece. A base material sticking step of sticking the base material to a surface of the first skin piece opposite to the molding surface in a state where the first sewing portion and the second sewing portion are held by a member. It has the characteristics.

  According to this invention, a 1st skin piece is shape | molded and a base material is affixed in the state which hold | maintained the 1st sewing part and the 2nd sewing part. Thereby, position shift of the 1st sewing part and the 2nd sewing part can be controlled.

  Further, when placing the outer peripheral end portion of the first skin piece on the holding mold, the outer periphery of the first skin piece on the second skin piece side is used as a plate-like portion provided on the holding mold. It can insert between an edge part and the said outer peripheral edge part of the said 2nd skin piece.

  By inserting the plate-like portion between the outer peripheral end portion of the first skin piece and the outer peripheral end portion of the second skin piece, the first sewing portion can be positioned. Thus, the first sewing portion can be temporarily fixed before the first sewing portion is held by the holding member.

  In the skin piece molding step, the surface of the holding die on which the outer peripheral end of the first skin piece is placed and the molding surface of the molding die are flush with each other. it can.

  Thereby, the situation where a level | step difference arises between the surface in which the outer peripheral edge part of the 1st skin piece in a holding die is mounted, and the shaping | molding surface in a shaping | molding die can be suppressed, and the situation where a level | step difference arises in a 1st skin piece is suppressed. Since it can do, design property can be made higher.

  Further, the holding member includes a plurality of pressing members arranged along an outer peripheral end portion of the first skin piece, and in the sewing portion holding step, between each of the plurality of pressing members and the holding mold. By sandwiching the second skin piece, the first sewing portion is held, and when the first sewing portion has a curved portion, the second sewing piece has a portion corresponding to the curved portion at the second portion. The said pressing member which contact | abuts to a skin piece in the shape of a point shall be arranged.

  By providing a plurality of pressing members, each pressing member can be arranged along the shape of the first sewing portion. Further, by operating the plurality of pressing members in order, the first sewing portion can be partially held little by little, and workability is improved.

  Moreover, when the 1st sewing part has a curved part, the remainder (excess part) of an outer skin piece tends to arise in the curved part vicinity. Such an excess portion is difficult to be pressed by the pressing member, and if pressed, it may cause wrinkles of the skin pieces. For this reason, it is preferable to arrange | position a press member so that an excess part may be avoided. By disposing a pressing member that abuts in a dot-like manner as in the present invention, it is easy to avoid an excess portion of the skin piece.

  In the sewing part holding step, a position of a sewing thread for sewing the outer peripheral end of the first skin piece on the second skin piece side and the outer peripheral end of the second skin piece is confirmed by a reference gauge. It can be.

  By confirming the position of the sewing thread with the reference gauge, it is possible to more reliably suppress the displacement of the first sewing portion.

  ADVANTAGE OF THE INVENTION According to this invention, the manufacturing method of the vehicle interior material which can suppress the position shift of a sewing part can be provided.

The perspective view which shows the armrest which concerns on Embodiment 1 of this invention. Sectional drawing which shows the armrest of FIG. 1 (corresponding to the figure cut | disconnected by the II-II line of FIG. 1) The figure which expands and shows the upper end part vicinity of an armrest in FIG. The figure which expands and shows the lower end part vicinity of an armrest in FIG. Sectional drawing which shows a sewing part holding | maintenance process (corresponding to the figure cut | disconnected by the VV line of FIG. 10) Sectional view showing skin piece molding process Cross-sectional view showing the substrate pasting process Sectional drawing which expands and shows the sewing part 41 vicinity in a sewing part holding process Sectional drawing which expands and shows the sewing part 42 vicinity in a sewing part holding process Perspective view schematically showing holding mold Side view showing the holding mold in a state where the sewing portion 41 is held. The figure which shows the sewing part holding | maintenance process which concerns on Embodiment 2. FIG.

<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS. In this embodiment, the armrest 20 with which the door trim of a vehicle is provided as an interior material for vehicles is illustrated. As shown in FIG. 1, the armrest 20 has a shape in which a lower portion bulges toward the vehicle interior side, and has an upper surface 20A (mounting surface) on which an occupant places an arm or the like.

  A standing wall portion 21 that rises upward is provided at the outer end portion of the upper surface 20A. The upper end of the vertical wall portion 21 on the front side of the vehicle descends toward the front of the vehicle.

  As shown in FIG. 2, the armrest 20 includes a base material 22 and a skin material 30 that covers the surface of the base material 22 on the front side (vehicle interior side). The skin material 30 is configured by sewing three skin pieces 31, 32, and 33.

  The skin piece 31 (first skin piece) is configured to constitute most of the upper surface 20A and the surface of the standing wall portion 21 on the vehicle interior side. The skin piece 32 (second skin piece) is arranged above the skin piece 31. Further, the skin piece 33 (third skin piece) is arranged below the skin piece 31. That is, the skin piece 32 and the skin piece 33 are arranged in such a manner as to sandwich the skin piece 31 from both sides in the vertical direction.

  The skin piece 32 constitutes an upper end portion and a vehicle front end portion of the armrest 20. The skin piece 33 constitutes a lower end portion of the armrest 20. The skin pieces 31, 32, 33 are, for example, different colors, but are not limited thereto.

  The base material 22 is made of, for example, a synthetic resin material such as polypropylene. In addition, the material of the base material 22 is not limited to a synthetic resin material, For example, you may use what mixed wood type material and synthetic resin.

  Moreover, each skin piece 31, 32, 33 is comprised by the artificial leather, the synthetic leather, etc., for example. In addition, the material of each skin piece 31,32,33 is not limited to what was mentioned above, It can change suitably. For example, each of the skin pieces 31, 32, 33 may be made of a polyurethane-based sheet material or a sheet material made of a slab urethane foam.

  As shown in FIG. 3, the outer peripheral end 31 </ b> A on the skin piece 32 side of the skin piece 31 and the outer peripheral end 32 </ b> A on the skin piece 31 side of the skin piece 32 overlap each other and are sewn together by a sewing thread 34. . As a result, the outer peripheral end portion 31A of the skin piece 31 and the outer peripheral end portion 32A of the skin piece 32 become a linear sewing portion 41 (first sewing portion) that is sewn together by the sewing thread 34. In addition, two rows of decorative stitch lines 31E are formed on the upper end portion of the skin piece 31 by sewing threads.

  On the other hand, the outer peripheral end portion 31B on the skin piece 33 side in the skin piece 31 and the outer peripheral end portion 33B on the skin piece 31 side in the skin piece 33 are overlapped with each other as shown in FIG. ing. Thereby, the outer peripheral end portion 31B of the skin piece 31 and the outer peripheral end portion 33B of the skin piece 33 are formed into a linear sewing portion 42 (second sewing portion) that is sewn together by the sewing thread 35.

  That is, the skin material 30 of this embodiment is arranged in one direction in the order of the skin piece 32, the skin piece 31, and the skin piece 33, and the sewing part 41 is formed along one end part of the skin piece 31, and is sewn. A portion 42 is formed along the other end of the skin piece 31.

  Each skin piece 31, 32, 33 is attached to the base material 22 with, for example, an adhesive. A soft material 24 is interposed between the lower part of the skin piece 31 (the part corresponding to the upper surface 20 </ b> A) and the base material 22. The soft material 24 is made of a soft synthetic resin (for example, urethane foam), but the material is not limited to this.

  Next, the manufacturing apparatus 50 that manufactures the armrest 20 will be described. As shown in FIG. 6, the manufacturing apparatus 50 includes a molding die 51 that molds the skin piece 31 into a product shape, a holding die 61 and a holding member 71 that hold the skin material 30 during molding by the molding die 51, and the base material 22. A press die 81 (upper die).

  As shown in FIG. 5, the molding die 51 has a shape protruding upward, and its upper surface is a molding surface 51 </ b> A that follows the product shape of the skin piece 31.

  As shown in FIGS. 5 and 10, the holding die 61 has a frame shape that follows the outer peripheral shape of the skin piece 31. As shown in FIG. 6, the molding die 51 is configured to be fitted in a fitting hole 63 formed through the holding die 61.

  In a state where the molding die 51 is fitted in the fitting hole 63 of the holding die 61, the upper surface 61 </ b> A (the surface on which the outer peripheral end portion of the first skin piece is placed) of the holding die 61 and the molding surface of the molding die 51. 51A is flush with each other.

  In the holding die 61, a plate-like portion 62 is attached to the outer peripheral end portion on the sewing portion 41 side. The upper end portion of the plate-like portion 62 is disposed above the upper surface of the holding die 61. The plate-like portion 62 has a shape extending along the extending direction of the sewing portion 41.

  The holding member 71 includes a plurality of clamp members 72. As shown in FIG. 8, the clamp member 72 (pressing member) includes a pressing portion 73 and a lever 74. As shown in FIG. 10, the plurality of clamp members 72 are arranged along the outer peripheral end of the holding die 61. For example, a toggle clamp can be used as the clamp member 72, but is not limited thereto. In FIG. 10, parts other than the pressing portion 73 in the clamp member 72 are omitted.

  As shown in FIG. 10, the pressing portion 73 has a rectangular plate shape. As shown in FIGS. 8 and 9, the skin piece 32 (or skin piece 33) is sandwiched between the pressing surface 73 </ b> A of the pressing portion 73 and the side surface 61 </ b> B (outer peripheral surface) of the holding die 61. ing.

  The clamp member 72 includes a bracket 76 that is fixed to the holding die 61. The pressing portion 73 is connected to the bracket 76 via a link 78 and a hinge portion 77. The pressing portion 73 can be rotated about the hinge portion 77 by rotating the lever 74 that is rotatably attached to the bracket 76.

  Accordingly, the pressing portion 73 can be rotated in a direction in which the pressing portion 73 approaches (or separates) from the skin piece 32 (or the skin piece 33), and the pressing portion 73 holds the skin piece 32 (or the skin piece 33) and , It can be released. In FIG. 8, the clamp member 72 in a state where the clamping is released is illustrated by a two-dot chain line.

  As shown in FIGS. 10 and 11, the sewing portion 41 has a curved portion 41 </ b> A that is curved upward. Among the plurality of clamp members 72, a clamp member (reference numeral 72A) disposed at a position corresponding to the curved portion 41A has a pressing portion 75 having a substantially cylindrical shape. That is, the pressing surface 73 </ b> A of the pressing portion 73 comes into contact with the skin piece 32 in a surface shape, and the pressing surface of the pressing portion 75 comes into contact with the skin piece 32 in a point shape.

  The press die 81 is a movable die that can be moved toward or away from the forming die 51 (fixed die) by a driving device (not shown) (for example, an electric motor, an air cylinder, a hydraulic cylinder, etc.). The press mold 81 can be closed by bringing the press mold 81 close to the mold 51, and the mold can be opened by separating the press mold 81.

  The lower surface of the press die 81 has a shape that follows the shape of the base material 22. A plurality of suction holes (not shown) are formed on the lower surface of the press die 81. Each suction hole is connected to a vacuum suction device (not shown) such as a vacuum pump.

  With the base material 22 disposed on the lower surface of the press die 81, the vacuum suction device is operated to apply a negative pressure to the base material 22 through each suction hole. Accordingly, the base material 22 can be sucked and fixed to the press die 81.

  Next, the manufacturing method of the armrest 20 of this embodiment is demonstrated. The manufacturing method of the armrest 20 in the present embodiment includes a sewing part holding step, a skin piece forming step, a base material sticking step, a skin piece sticking step, and a soft material forming step.

(Sewing part holding process)
In the sewing portion holding step, the skin material 30 is fixed to the holding die 61 as shown in FIG. Specifically, the operator places the outer peripheral end portion of the skin piece 31 on the upper surface 61 </ b> A of the holding die 61. In this state, the skin piece 31 is arranged so as to cover the fitting hole 63 of the holding die 61 from above.

  When placing the outer peripheral end portion of the skin piece 31, the plate-like portion 62 provided on the holding die 61 is placed between the outer peripheral end portion 31 </ b> A of the sewn skin piece 31 and the outer peripheral end portion 32 </ b> A of the skin piece 32. The space (space S2) is inserted from below (see FIG. 8). As a result, the sewing portion 41 is temporarily fixed to the holding die 61.

  Next, the operator sequentially operates the levers 74 of the plurality of clamp members 72 and 72 </ b> A to rotate the pressing portions 73 and 75 in a direction approaching the skin material 30. Accordingly, the skin pieces 32 and 33 are sandwiched between the pressing portions 73 and 75 and the side surface 61B of the holding die 61. As a result, the sewing parts 41 and 42 are held by the plurality of clamp members 72 and 72A (holding member 71).

  As shown in FIG. 8, the pressing portions 73 and 75 on the sewing portion 41 press the lower side and the vicinity of the sewing thread 34 in the skin piece 32, and the pressing portions 73 on the sewing portion 42 side are shown in FIG. As shown, the lower part and the vicinity of the sewing thread 35 in the skin piece 33 are pressed.

(Skin piece forming process)
Next, in a state where the sewing parts 41 and 42 are held by the holding member 71, the holding die 61 is moved above the forming die 51 and then lowered toward the forming die 51. At this time, the molding die 51 is fitted from below into the fitting hole 63 of the holding die 61 so that the upper surface 61A of the holding die 61 and the molding surface 51A of the molding die 51 are flush with each other.

  Thereby, the molding surface 51 </ b> A of the mold 51 is pressed against the lower surface of the skin piece 31. Since the sewing parts 41 and 42 are held by the holding member 71, the skin piece 31 pressed upward by the molding surface 51A is applied with a tension and is molded into a product shape that follows the shape of the molding surface 51A. The

(Substrate pasting process)
Next, in the base material sticking step, an adhesive is applied to the lower surface of the base material 22 and the upper surface of the skin piece 31 fixed to the press die 81, and the holding die 61 and the forming die 51 are disposed below the press die 81. (See FIG. 6). The adhesive may be applied only to either the base material 22 or the skin piece 31.

  Next, the press die 81 is lowered while maintaining the state where the sewing portion 41 and the sewing portion 42 are held by the holding member 71. Thereby, the lower surface (front surface) of the base material 22 contacts the back surface 31D (surface opposite to the molding surface 51A) of the skin piece 31, and the skin piece 31 is pressure-bonded to the base material 22 (see FIG. 7). ).

(Skin skin application process)
After the base material sticking step, the holding of the sewing parts 41 and 42 by the holding member 71 is released, and the skin pieces 32 and 33 are attached to the base material 22, respectively. Specifically, as shown in FIG. 2, the skin piece 32 is attached to the upper wall portion 23 </ b> A of the base material 22, and the skin material 33 is attached to the lower wall portion 23 </ b> B of the base material 22. The outer peripheral end portion of the skin piece 32 is folded back to the back side of the upper wall portion 23A, and the outer peripheral end portion of the skin piece 33 is folded back to the back side of the lower wall portion 23B.

(Soft material forming process)
Next, with respect to the gap S1 formed between the base material 22 and the skin piece 31, a foamed resin material such as polyurethane is injected from each of the injection holes 22A and 22B (see FIG. 2) formed in the base material 22. The soft material 24 is formed by pouring. Thereby, manufacture of armrest 20 is completed.

  Next, the effect of this embodiment will be described. According to the present embodiment, the skin piece 31 is formed and the base material 22 is pasted while the sewing portion 41 and the sewing portion 42 are held. Thereby, the position shift of the sewing part 41 and the sewing part 42 can be suppressed.

  The positional deviation of the sewing part mentioned here means that the position of the sewing part is deviated from a predetermined position. In addition, if the position of the sewing part is shifted, the design property is deteriorated due to the meandering line (parting line) between adjacent skin pieces and the stitch line formed by the sewing thread partially meandering.

  Conventionally, as an operation of attaching the skin material 30 to the base material 22, a manual operation is known. Specifically, for example, the operator positions only one of the sewing portions 41 and 42 on the base material 22, and gradually places the base material 22 on the base material 22 from a position close to the positioned sewing portion. On the other hand, the skin piece 31 is affixed. That is, the other sewing part is pasted on the final stage of the pasting work.

  When the skin piece 31 is pasted, it is necessary to apply tension to the skin piece 31 to suppress wrinkles. When tension is applied to the skin piece 31, the skin piece 31 is partially stretched. As in the prior art, in the method of attaching the skin piece 31 little by little from a location close to one of the fixed sewing parts, errors caused by partially extending the skin piece 31 are accumulated on the other side, There is a concern that the sewing part may be displaced.

  For this reason, in the case of a configuration in which the three skin pieces 31, 32, 33 are arranged in one direction (in other words, a configuration including a pair of sewing portions 41, 42 arranged to face each other), the conventional manual operation is performed. Then, it becomes difficult to position both the sewing parts 41 and 42.

  In the present embodiment, the skin piece 31 is molded while tension is applied to the skin piece 31 by the molding surface 51A of the molding die 51 in a state where the sewing portion 41 and the sewing portion 42 are held. Accordingly, it is possible to suppress a situation in which the sewing parts 41 and 42 are displaced due to the formation of the skin piece 31. That is, in the configuration including the skin material 30 having the pair of sewn portions 41 and 42 arranged to face each other, the design property can be further enhanced.

  Further, when the outer peripheral end of the skin piece 31 is placed on the holding die 61, the plate-like portion 62 provided on the holding die 61 is attached to the outer peripheral end of the sewn skin piece 31 and the outer periphery of the skin piece 32. It is supposed to be inserted between the ends.

  The sewing portion 41 can be positioned by inserting the plate-like portion 62 between the outer peripheral end portion of the skin piece 31 and the outer peripheral end portion of the skin piece 32. Thereby, before holding the sewing part 41 with the holding member 71, the sewing part 41 can be temporarily fixed.

  Further, when placing the skin piece 31 on the holding die 61, the operator confirms the tactile sensation that the plate-like portion 62 is inserted between the outer peripheral end portion of the outer skin piece 31 and the outer peripheral end portion of the outer skin piece 32. However, the work can be performed. Thereby, the mounting operation | work of the skin piece 31 can be performed more reliably.

  In the skin piece molding step, the upper surface 61A on which the outer peripheral end portion of the skin piece 31 in the holding die 61 is placed and the molding surface 51A in the molding die 51 are flush with each other. Thereby, since the situation where a level | step difference arises between 61 A of upper surfaces and 51 A of shaping | molding surfaces can be suppressed, and the situation where a level | step difference arises in the skin piece 31 can be suppressed, the design property can be made higher.

  In addition, the holding member 71 includes a plurality of clamp members 72 arranged along the outer peripheral end of the skin piece 31, and in the sewing part holding step, the skin is provided between each of the plurality of clamp members 72 and the holding die 61. By clamping the outer peripheral end of the piece 32, the sewing portion 41 is held, and a clamp member 72 </ b> A that contacts the skin piece 32 in a point-like manner at a position corresponding to the curved portion 41 </ b> A in the sewing portion 41. Is arranged.

  By providing the plurality of clamp members 72, the clamp members 72 can be arranged along the shape of the sewing parts 41 and 42. Further, by operating the plurality of clamp members 72 in order, the sewing parts 41 and 42 can be partially pressed and held little by little, and workability is improved.

  Specifically, when the sewing parts 41 and 42 are held by the clamp member 72, the operator needs to take care so that wrinkles do not occur in the held parts. For this reason, it is preferable that the operator performs an operation of holding the sewing portions 41 and 42 while preventing wrinkles by pulling a portion to be held. As the area of the sewing portion held by one clamp member 72 is larger, wrinkles are more likely to occur, and workability is reduced. By holding the sewing parts 41 and 42 partly, the area of the sewing part held by one clamp member 72 can be reduced, and workability is improved.

  Further, in the vicinity of the curved portion 41 </ b> A of the sewing portion 41, a surplus of the skin piece 32 (the surplus portion 36, see FIG. 11) is likely to occur. Since such an excessive part is not a flat shape, if it is pressed by the clamp member, it may cause wrinkles of the skin pieces 32. For this reason, it is preferable to arrange | position a clamp member so that the excess part 36 may be avoided. By disposing the clamp member 72A that contacts the skin piece 32 in a point-like manner as in the present embodiment, the clamp member 72A can be disposed avoiding the surplus portion 36 of the skin piece 32, which is preferable. .

  Further, the pressing portion 75 of the clamp member 72 </ b> A has a pressing surface smaller than that of the plate-like pressing portion 73. For this reason, when pinching the skin piece 32, it is easier to pinch. This is because as the pressing surface is smaller, wrinkles in the skin pieces 32 are less likely to occur, and workability is improved. Due to such circumstances, in the sewing part holding step, it is preferable to first operate the clamp member 72A, partially hold the skin piece 32 by the pressing part 75, and then operate the other clamp members 72 in order. .

<Embodiment 2>
Next, Embodiment 2 of the present invention will be described with reference to FIG. The same parts as those in the above embodiment are denoted by the same reference numerals, and redundant description is omitted. In the armrest manufacturing method of the present embodiment, the work in the sewing portion holding step is different from that of the above embodiment.

  As shown in FIG. 12, a reference gauge 190 is provided in the manufacturing apparatus 50 of the present embodiment. The reference gauge 190 has, for example, a longitudinal shape extending along the extending direction of the sewing thread 34 and can be arranged so as to cover the sewing thread 34 constituting the sewing portion 41.

  The reference gauge 190 is made of, for example, a transparent member such as acrylic, and the sewing thread 34 can be visually recognized through the reference gauge 190. A first reference line 191 and a second reference line 192 are drawn on the reference gauge 190.

  The first reference line 191 and the second reference line 192 are straight lines and are arranged in parallel to each other. The first reference line 191 and the second reference line 192 are formed for the operator to confirm the position of the sewing thread 34.

  The operator checks the position of the sewing thread 34 through the reference gauge 190, and if the sewing thread 34 is arranged between the first reference line 191 and the second reference line 192, the position error of the sewing thread 34 is within an allowable range. It can be judged that there is.

  In the sewing part holding step, the sewing part 41 is held while confirming that the sewing thread 34 is disposed between the first reference line 191 and the second reference line 192. Thus, by confirming the position of the sewing thread 34 with the reference gauge 190, it is possible to more reliably suppress the displacement of the sewing portion 41.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.

  (1) In the said embodiment, although the armrest was illustrated as an interior material for vehicles, it is not limited to this. Examples of the vehicle interior material include a door trim, a pillar garnish, an instrument panel, and the like.

  (2) In the said embodiment, the skin material 30 should just be comprised from the at least 3 skin piece, for example, the skin material 30 may be comprised from the 4 or more skin piece.

  (3) The fixing means for fixing the base material 22 to the press die 81 is not limited to evacuation and can be appropriately changed.

  (4) In the said embodiment, although the clamp member 72 was illustrated as a press member, it is not limited to this.

DESCRIPTION OF SYMBOLS 20 ... Armrest (vehicle interior material), 22 ... Base material, 30 ... Skin material, 31 ... Skin piece (1st skin piece), 31A ... Outer edge part (the outer edge part on the 2nd skin piece side in the 1st skin piece) ), 31B ... outer peripheral end (outer peripheral end on the third skin piece side in the first skin piece), 31D ... back surface of the skin piece (surface opposite to the molding surface 51A), 32 ... skin piece (second skin piece) ), 32A ... Outer end (outer end of second skin piece), 33 ... Outer skin piece (third outer skin piece), 33B ... Outer end (outer end of third skin piece), 34 ... Sewing thread (first 1) a sewing thread that sews the outer peripheral end of the skin piece and the outer peripheral end of the second skin piece), 41... Sewing portion (first sewing portion), 41A... Curved portion in the first sewing portion, 42. Sewing part), 51 ... molding die, 51A ... molding surface, 61 ... holding die, 61A ... upper surface of holding die (of the first skin piece in the holding die) The surface on which the peripheral end portion is placed), 62... Plate-like portion, 71... Holding member, 72... Clamp member (pressing member), 72 A. ), 190 ... Reference gauge

Claims (3)

A base material and a skin material formed by sewing a plurality of skin pieces, wherein the plurality of skin pieces are arranged in a form sandwiching the first skin pieces, the first skin pieces, and the second skin pieces A method for producing a vehicle interior material comprising at least three skin pieces,
With the outer peripheral end of the first skin piece placed on a frame-shaped holding mold that follows the outer peripheral shape of the first skin piece, the outer peripheral end of the first skin piece on the second skin piece side and the first skin piece 2 a first sewing part formed by sewing the outer peripheral end of the skin piece, and an outer peripheral end part of the first skin piece on the third skin piece side and an outer peripheral end part of the third skin piece. A sewing part holding step of holding the second sewing parts by the holding members,
By pressing the molding surface of the molding die against the first skin piece in a state where the first sewing portion and the second sewing portion are held by the holding member, which is performed after the sewing portion holding step. A skin piece molding step of molding one skin piece into a product shape that follows the shape of the molding surface;
The surface of the first skin piece opposite to the molding surface is performed after the skin piece molding step and the first sewing portion and the second sewing portion are held by the holding member. A substrate pasting step to be affixed to ,
The mold is configured to be fitted in a fitting hole formed through the holding mold,
When placing the outer peripheral end of the first skin piece on the holding mold,
For the holding mold in a state in which the forming mold is not fitted, the first skin piece is arranged so as to cover from above the fitting hole, and further provided above the upper surface of the holding mold, A plate-like portion having a shape extending along the extending direction of the first sewing portion is provided between the outer peripheral end portion of the first skin piece on the second skin piece side and the outer peripheral end portion of the second skin piece. The first skin piece is placed on the holding mold by inserting it into the
In the sewing part holding step, the second sewing part is held after temporarily fixing the first sewing part using the plate-like part,
In the skin piece molding process,
The fitting die of the holding die is arranged so that the surface on which the outer peripheral end of the first skin piece in the holding die is placed and the molding surface of the molding die are flush with each other. And a vehicle interior material manufacturing method for pressing from below so that tension is applied to the skin piece by the molding surface of the mold . The holding member includes a plurality of pressing members arranged along the outer peripheral end of the first skin piece,
In the sewing part holding step,
By holding the second skin piece between each of the plurality of pressing members and the holding mold, the first sewing portion is held,
2. The press member according to claim 1, wherein, in a case where the first sewing portion has a curved portion, the pressing member that contacts the second skin piece in a point shape is disposed at a location corresponding to the curved portion. A method for manufacturing an interior material for a vehicle.   2. The sewing portion holding step uses a reference gauge to check a position of a sewing thread for sewing the outer peripheral end of the first skin piece on the second skin piece side and the outer peripheral end of the second skin piece. Or the manufacturing method of the interior material for vehicles of Claim 2.

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