JP2016164021A - Superposition composite component - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress the rattling of a mounted member in a superposition composite component in which two members of a first member and a second member are superposed and mounted.SOLUTION: An engagement projection 37 provided in a skin material 16 includes: an insertion section 51 projecting from a rear face 31; and an engaging section 53 formed at a tip 51A of the insertion section 51. In a mounting work, the insertion section 51 inserted into an insertion hole section 61 and the engaging section 53 are moved from the insertion hole section 61 toward a regulation hole section 65 along a crank shape of a movement hole section 63. In the engaging section 53, a lower surface of the engaging section 53 is engaged with a rear face 29 of a base material 15 at a peripheral edge of the regulation hole section 65 in a state that the insertion section 51 is inserted into the regulation hole section 65. Accordingly, an engaged section 27 is regulated in the movement in a slip-off direction.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a mounting structure technique in a composite part in which two members, a first member and a second member, are mounted in a superimposed manner.

  Conventionally, in vehicle interior parts such as door trims, luggage side trims, and instrument panels, composite parts in which a base material and a skin material are attached in an overlapping manner are used. In this type of composite part, for example, there is one that holds the mating surface of the peripheral portion of the skin material on the mating surface of the base material (for example, Patent Document 1). The door trim disclosed in Patent Document 1 includes a skin material (in the literature, “interior base material”) and a substantially L-shaped base material (in the literature, “resin component”) that holds the peripheral portion of the interior base material. And. A plate-like restricting portion that rotates via a hinge is attached to the end of the base material. The restricting portion is provided with a convex engaging portion protruding from the surface on the plane. The engaging portion rotates integrally with the rotation of the restricting portion. On the other hand, an insertion hole is formed at the end of the skin material in accordance with the position where the engaging portion of the base material rotates. And the skin material is hold | maintained on the base material by inserting and engaging the rotated engaging part in the insertion hole.

JP2013-14235A

  In the door trim described above, the convex engaging portion is inserted into the insertion hole and engaged, and when the engaging portion moves in a direction perpendicular to the protruding direction of the engaging portion, the engaging portion is The movement is restricted by engaging the inner wall of the insertion hole. However, when a force in a direction opposite to the protruding direction, that is, a direction in which it is removed from the insertion hole is applied to the engaging portion, the engaging portion does not have a member that restricts movement in the removing direction, so the position is There is a risk that it will shift or come out of the insertion hole. As a result, there is a possibility that the position of the skin material is shifted with respect to the base material, and it becomes loose.

  The technology disclosed in the present application has been proposed in view of the above problems. An object of the present invention is to suppress rattling of the attached members in an overlapped composite component in which the two members of the first member and the second member are attached in an overlapping manner.

  An overlap composite component according to one aspect of the present invention includes a first member having a first mating surface and a second member having a second mating surface that is superimposed on the first mating surface of the first member and is elastically deformable. And the second member has an insertion portion that protrudes from the second mating surface and is inserted into the first member, and an engagement portion that is provided in the insertion portion. An insertion hole formed through the one mating surface and into which the insertion portion and the engagement portion of the second member are inserted, and an engagement portion formed with a smaller hole diameter than the insertion hole and engaged. A restriction hole that restricts the engagement portion from moving toward the base end side of the insertion portion, and a hole diameter that allows the insertion portion to move by allowing the insertion hole and the restriction hole portion to communicate with each other. And a moving hole.

  In the superposed composite component, the second member has an insertion portion that protrudes from the second mating surface and an engagement portion that is provided in the insertion portion. In the attaching operation of the first member and the second member, for example, first, the insertion portion and the engagement portion of the second member are inserted into the insertion hole portion of the first member. Next, the insertion portion and the engagement portion inserted into the insertion hole are moved from the insertion hole toward the restriction hole along the movement hole. When the insertion portion is inserted into the restriction hole, the engagement portion is restricted from moving in the direction toward the proximal end of the insertion portion by engaging with the restriction hole. Thereby, the second member moves from the distal end portion of the insertion portion protruding from the second mating surface to the proximal end portion, that is, the second member is moved to the first position, by engaging the engaging portion with the restriction hole portion. Movement in the removal direction away from the member is restricted. Therefore, the second member is prevented from being displaced or rattled with respect to the first member.

  Further, in the superimposed composite component, the insertion hole for inserting the engaging portion and the restriction hole for restricting the movement of the engaging portion are at different positions. Moreover, the moving hole part is formed with a hole diameter through which the insertion part can move. For example, by adjusting the hole diameter of the moving hole portion to the size of the inserting portion, the portion provided with the engaging portion of the inserting portion becomes difficult to come out of the moving hole portion. For this reason, for example, by separating the insertion hole part and the restriction hole part from each other by a predetermined distance, and separating the assembly position from the position to be engaged, the insertion part once accommodated in the restriction hole part is changed to the moving hole part. If the insertion hole is not returned to the insertion hole, the engagement portion is engaged and cannot be pulled out. Therefore, it is possible to make the second member more difficult to come off from the first member.

  Further, the engaging portion engages with a restriction hole (for example, a peripheral portion of the hole), and movement in the removal direction is restricted. For this reason, it becomes possible to adjust the position which hold | maintains an engaging part by changing the thickness, shape, etc. of the peripheral part of the hole of a control hole part, for example. For example, by adjusting the position of the engaging portion in the pulling direction, it is possible to adjust the pull-in amount of the insertion portion, and it is possible to adjust the distance between the second member and the first member.

  The insertion hole portion is used as a hole for inserting the engaging portion. For example, the hole diameter of the insertion hole portion is sufficiently larger than the size of the engaging portion, and the engaging portion is inserted. By making it easy, it is possible to improve the work efficiency of the attachment work.

  An overlap composite component according to another aspect of the present invention is the overlap composite component according to claim 1, wherein the engaging portion is formed in a direction perpendicular to the protruding direction of the insertion portion. It is characterized by that.

  The overlapping composite component is configured to have, for example, an L shape, a T shape, or a cross shape by making the engaging portion and the insertion portion orthogonal to each other. For this reason, for example, it becomes possible to attach a 2nd member more reliably with respect to a 1st member by engaging a T-shaped insertion part and an engaging part with a control hole part.

  An overlap composite component according to another aspect of the present invention is the overlap composite component according to claim 1 or 2, wherein the moving hole portion is moved by the insertion portion accommodated in the restriction hole portion. A restriction claw for restricting movement to the hole is provided in a portion communicating with the restriction hole.

  In the overlapped composite part, the insertion part accommodated in the restriction hole part is engaged with the restriction claw part when an external force such as an impact acts and a force from the restriction hole part toward the movement hole part acts. By matching, movement to the moving hole is restricted. Thereby, it is possible to prevent the engaging portion and the insertion portion once attached to the restriction hole portion from returning to the moving hole portion.

  An overlap composite component according to another aspect of the present invention is the overlap composite component according to any one of claims 1 to 3, wherein the moving hole portion includes an insertion hole portion and a restriction hole portion. It is formed in the shape curved with respect to the straight line which connects.

  In the superimposed composite component, the moving hole is formed in a crank shape that connects the insertion hole and the restriction hole, for example. In this case, when the insertion portion inserted into the moving hole portion moves linearly from the insertion hole portion to the restriction hole portion or from the restriction hole portion to the insertion hole portion, the insertion portion is engaged with the inner wall of the curved movement hole portion. Match. That is, the insertion portion is restricted from moving at the moving hole. For example, when a force in the direction of returning to the insertion hole due to the elastic force of the second member acts on the insertion part during the mounting operation of moving the insertion part within the movement hole, the insertion part to be moved is moved. Can be regulated. As a result, it is possible to prevent the insertion portion attached halfway from returning to the insertion hole and coming out, thereby improving the work efficiency. Also, for example, when an external force such as an impact is applied and the insertion part once attached to the restriction hole part returns to the movement hole part, the movement to the insertion hole part side is restricted, It becomes possible to make it difficult for the second member to come off the first member.

  An overlap composite component according to another aspect of the present invention is the overlap composite component according to any one of claims 1 to 4, wherein the engaging portion is in a protruding direction of the insertion portion. The first member is erected on the back surface facing the first mating surface and is engaged with the engagement portion, whereby the insertion portion inserted into the restriction hole portion is moved to the movement hole portion. It has the control rod which controls that it moves.

  In the overlapped composite part, the insertion portion accommodated in the restriction hole portion is formed on the first mating surface when, for example, an external force such as an impact acts and a force from the restriction hole portion toward the movement hole portion acts. When the engaging portion engages with the restriction rod standing on the back surface, the movement to the moving hole portion is restricted. Thereby, it is possible to prevent the engaging portion and the insertion portion once attached to the restriction hole portion from returning to the moving hole portion.

  An overlap composite component according to another aspect of the present invention is the overlap composite component according to any one of claims 1 to 5, wherein the engaging portion is in a protruding direction of the insertion portion. The first member is formed in a vertical direction, and the first member is erected on the back surface facing the first mating surface, is formed in the vertical direction of the back surface, and engages with the engagement portion, thereby forming the restriction hole portion. A first plate portion that restricts the inserted insertion portion from moving to the moving hole portion, a first plate portion that is provided in the first plate portion, formed in a direction parallel to the back surface, and engaged with the engaging portion, A second plate portion that restricts the engagement portion from moving toward the distal end side of the insertion portion, and the engagement portion is surrounded by the first plate portion, the second plate portion, and the back surface. It is characterized in that it is accommodated in the part.

  In the superimposed composite component, the first member is provided on the first plate portion, which is erected on the back surface facing the first mating surface and formed in the vertical direction of the back surface, and the first plate portion. And a second plate portion formed in a direction parallel to the back surface, and the engaging portion is accommodated in a portion surrounded by the first plate portion, the second plate portion, and the back surface. For example, when an external force such as an impact acts on the insertion portion accommodated in the restriction hole portion and a force from the restriction hole portion toward the movement hole portion acts, the engagement portion engages with the first plate portion. As a result, movement to the moving hole is restricted. Thereby, it is possible to prevent the engaging portion and the insertion portion once attached to the restriction hole portion from returning to the moving hole portion.

  Further, when the insertion portion moves toward the distal end side in the projecting direction, for example, when the second member is about to move toward the first member side, the engaging portion is engaged with the second plate portion. By doing so, the movement of the second member toward the first member is restricted. Thereby, the first member and the second member can be kept at a certain distance.

  An overlapping composite part according to another aspect of the present invention is the overlapping composite part according to any one of claims 1 to 6, wherein the second mating surface faces the first mating surface. And the second member is arranged so that the protrusion on the second mating surface is in contact with the first mating surface, and is superimposed on the first member. A cushioning property is imparted by being elastically deformed by being pressed against the mating surfaces.

  In the superimposed composite component, for example, when the user presses the second member with a finger or the like from the surface opposite to the second mating surface, the plurality of protrusions are pressed against the first mating surface and elastically deformed. By doing so, it becomes possible to give a predetermined tactile sensation to the finger or the like. Thus, when it is going to elastically deform a protrusion according to an external force, it is necessary to provide a space between the first member and the second member. For this reason, in the superposed composite part, as a method for attaching the first member and the second member, a general method in which the first mating surface is adhered to the second mating surface and adhered is used. difficult. Therefore, the above-described mounting structure, that is, the engaging portion is engaged with the restriction hole portion, and the first mating surface (first member) and the second mating surface (second member) are set to the height in the protruding direction of the insertion portion. It is extremely effective to apply a mounting structure that is separated according to the above to a composite composite part in which a plurality of protrusions are provided between the first member and the second member.

  According to the technique disclosed in the present application, it is possible to suppress backlash of the attached member in the overlapped composite component in which the two members of the first member and the second member are attached to be overlapped.

It is the schematic front view which looked at the vehicle door trim in this embodiment from the vehicle interior side. In the door trim of the state which attached the skin material, it is sectional drawing which looked at the cross section cut | disconnected by the AA line shown in FIG. 1 from the arrow direction. It is an enlarged plan view for demonstrating many microprotrusions provided in the back surface of the skin material. It is sectional drawing which looked at the cross section cut | disconnected by the BB line in FIG. 3 from the arrow direction. It is sectional drawing which looked at the cross section cut | disconnected by the CC line | wire in FIG. 3 from the arrow direction. It is the elements on larger scale which expanded the area | region R1 in FIG. 2, and the elements on larger scale which further expanded the part. It is a figure for demonstrating attachment work, and is a schematic diagram which shows the part in which the engagement protrusion of the skin material was provided, and the part in which the to-be-engaged part of the base material was provided. It is a figure for demonstrating attachment operation | work, and is sectional drawing which slides a skin material on a base material. It is a figure for demonstrating attachment work, and is a schematic diagram which shows the part in which the engagement protrusion of the skin material was provided, and the part in which the to-be-engaged part of the base material was provided. It is a figure for demonstrating attachment work, and is a schematic diagram which shows the part in which the engagement protrusion of the skin material was provided, and the part in which the to-be-engaged part of the base material was provided. It is a figure for demonstrating attachment work, and is a schematic diagram which shows the part in which the engagement protrusion of the skin material was provided, and the part in which the to-be-engaged part of the base material was provided. It is a schematic diagram for demonstrating the attachment operation | work in another example. It is a schematic diagram for demonstrating the attachment operation | work in another example. It is a schematic diagram for demonstrating the attachment operation | work in another example. It is a schematic diagram for demonstrating the attachment operation | work in another example. It is a schematic diagram for demonstrating the attachment operation | work in another example. It is a schematic diagram for demonstrating the attachment operation | work in another example. It is a schematic diagram for demonstrating the manufacturing method of a skin material.

  Hereinafter, a vehicle door trim 10 will be described with reference to the drawings as an embodiment of an overlapped composite component according to the present invention. FIG. 1 is a schematic front view of a vehicle door trim 10 (hereinafter may be abbreviated as “door trim 10”) in the present embodiment as viewed from the vehicle interior side, and the skin material 16 shown in FIG. 2 is removed. The base material 15 in a state is shown. FIG. 2 is a cross-sectional view of the cross section cut along the line AA shown in FIG. 1 in a state where the skin material 16 is attached, viewed from the direction of the arrow, and shows a cross section of the armrest 12 portion provided on the door trim 10. Yes.

  As shown in FIG. 1 and FIG. 2, the door trim 10 is arranged so as to be overlapped substantially parallel to a plate-like base material 15 that is curved three-dimensionally and a surface 21 of the base material 15. Plate-shaped skin material 16. The base material 15 is integrally formed of a synthetic resin material such as hard polypropylene. A large number of attachment portions 23 are integrally provided on the outer peripheral edge portion of the base material 15.

  The skin material 16 is integrally formed of a relatively soft and elastically deformable synthetic resin material such as soft polyvinyl chloride. On the back surface 31 (surface on the base material 15 side) of the skin material 16, a large number of minute projections 33 projecting toward the front surface 21 of the base material 15 are formed on the entire surface at predetermined intervals. A space 18 is formed between the skin material 16 and the surface 21 by these minute protrusions 33. In the skin material 16, the outer peripheral end portion 35 is wound around the outer peripheral edge portion 25 of the base material 15 in a state where the tip end portion 33 </ b> A (see FIG. 4) of the minute protrusion 33 is in close contact with the surface 21 of the base material 15. The outer peripheral end portion 35 of the skin material 16 is integrally attached to the base material 15 by fitting the fastening member 19 into the through hole of the attachment portion 23. The method of fixing the skin material 16 to the base material 15 can be changed as appropriate. For example, even if the outer peripheral edge portion 35 of the skin material 16 is fixed to the outer peripheral edge portion 25 of the base material 15 using an adhesive. Good. That is, you may adhere | attach only an outer peripheral part mutually.

  FIG. 3 is a view for explaining a large number of minute protrusions 33 provided on the back surface 31 of the skin material 16, and is an enlarged plan view viewed from the vertical direction with respect to the back surface 31. 4 is a partially enlarged cross-sectional view of the cross-sectional view taken along the line BB in FIG. 3 as viewed from the direction of the arrow. FIG. 5 is a partially enlarged cross-sectional view of the cross section taken along the line CC in FIG. 3 as viewed from the direction of the arrow. As shown in FIGS. 4 and 5, the numerous microprojections 33 of the present embodiment have the same shape, and have a rectangular shape with rounded corners in plan view of the back surface 31 (the state shown in FIG. 3). ing. As shown in FIG. 3, each of the plurality of minute protrusions 33 has each side of the polygon formed so as to form a lattice pattern 41 in which each side of a large number of polygons having the same shape overlaps each adjacent side of the polygon. It is provided in the position to configure. In the present embodiment, the minute protrusions 33 are arranged such that the longitudinal direction of the rectangular shape in plan view is a direction along each side of the polygon. More specifically, the lattice pattern 41 of the present embodiment is a honeycomb pattern in which regular hexagons having a certain size are continuously repeated as polygons, as indicated by a two-dot chain line in FIG. One microprotrusion 33 is provided at the center of each side.

  As shown in FIGS. 4 and 5, the minute protrusion 33 has a gently tapered shape in which the cross-sectional area decreases from the proximal end portion 33B toward the distal end portion 33A. Further, the cross-sectional shape in the width direction perpendicular to the longitudinal direction shown in FIG. 4 and the cross-sectional shape in the longitudinal direction shown in FIG. 5 are both symmetrical with respect to the neutral plane perpendicular to the back surface 31. The tip portion 33A is rounded. The microprojections 33 will be described more specifically. The pitch P, which is the interval between two parallel sides of the regular hexagon of the lattice pattern 41, that is, the distance between the centers of the microprojections 33 provided on the two sides is, for example, Within the range of 4 mm ≦ P ≦ 7 mm, this embodiment is about 5 mm. Further, the height H of the minute protrusion 33 is, for example, within a range of 2 mm ≦ H ≦ 3.5 mm, and is about 2.5 mm in the present embodiment. The width D of the microprotrusion 33 (the length in the short direction of the rectangular shape on the plane) is, for example, within a range of 1 mm ≦ D ≦ 2 mm, and is about 1.2 mm in the present embodiment. The length L (length in the longitudinal direction of the rectangular shape in plan view) of the microprojections 33 is, for example, within a range of 1.5 mm ≦ L ≦ 2.5 mm, and is about 1.8 mm in the present embodiment. The inclination angle α of the side walls on both sides in the width direction of the microprotrusion 33 is, for example, within a range of 2 ° ≦ α ≦ 5 ° and about 3 ° in the present embodiment. The inclination angle β of the side wall in the longitudinal direction of the microprotrusion 33 is, for example, within a range of 10 ° to 15 °, and about 13 ° in the present embodiment. The plate thickness T of the skin material 16 provided with the fine protrusions 33 is, for example, within a range of 1 mm ≦ T ≦ 2 mm, and is about 1.5 mm in this embodiment. These dimensions and angles are appropriately determined in consideration of the material of the skin material 16 and the like so as to obtain a predetermined tactile sensation (soft feeling or the like).

  In the door trim 10 described above, when a user such as a driver presses the skin material 16 with a finger or a hand, the distal end portion 33A of the minute projection 33 is pressed against the surface 21 of the base material 15 and elastically deforms. Thus, cushioning properties are imparted, and a predetermined tactile sensation is imparted to the finger or the like. Moreover, in the door trim 10 of this embodiment, since many microprotrusion 33 has comprised symmetrical shape, when a pressing load is applied from the perpendicular direction with respect to the back surface 31, for example, microprotrusion 33 is FIG.4 and FIG. The cushioning property is imparted by compressing and deforming in the vertical direction at 5. Further, in the door trim 10, when a pressing load is applied to the back surface 31 from an oblique direction, the minute protrusions 33 bend in a direction perpendicular to the longitudinal direction (left and right direction in FIG. 4) in addition to compressive deformation in the vertical direction. By deforming, cushioning properties are imparted.

  Here, the minute protrusions 33 described above are not fixed to the base material 15, and only the tip portion 33 </ b> A is in contact with the surface 21 of the base material 15. For this reason, for example, in the armrest 12 portion that is curved so that the design surface side is recessed, there is a possibility that a gap may be generated between the surface 21 of the base material 15 and the tip portion 33 </ b> A of the minute protrusion 33. FIG. 6 is a partially enlarged view in which the region R1 in FIG. 2 is enlarged, and a part of the enlarged view. For example, as shown in FIG. 6, in the curved portion 12 </ b> A of the armrest 12, there is a possibility that a gap is generated between the surface 21 and the minute protrusion 33, so that the skin material 16 may be loosened, wrinkled or lifted. Therefore, in the door trim 10 of the present embodiment, the engagement protrusion 37 is provided on the skin material 16, the engaged portion 27 is provided on the base material 15 corresponding to the engagement protrusion 37, and they are engaged with each other, The structure is designed to prevent loosening of the skin material 16 in the curved portion 12A.

  As shown in FIG. 1, engaged portions 27 are formed on the base material 15 at predetermined intervals. As shown in FIG. 6, an engagement protrusion 37 is formed on the skin material 16 in accordance with the position of the engaged portion 27 of the base material 15. FIG. 7 shows an enlarged view of the portion of the skin material 16 provided with the engagement protrusion 37 and the portion of the base material 15 provided with the engaged portion 27. Note that the shapes and the like of the engagement protrusion 37 and the engaged portion 27 shown in FIG. 7 are examples. Further, in order to avoid the drawing from being complicated, the illustration of the minute protrusions 33 formed on the back surface 31 of the skin material 16 is omitted. In the following description, as shown in the figure, one direction parallel to the back surface 31 of the skin material 16 is the X direction, and the direction parallel to the back surface 31 and perpendicular to the X direction is the Y direction, the X direction, and the Y direction. A direction perpendicular to both directions will be referred to as a Z direction. Further, FIG. 7 shows the front surface 21 of the base material 15 and the back surface 31 of the skin material 16 facing each other in parallel for convenience of explanation. For this reason, in the state shown in FIG. 7, the X direction and the Y direction are parallel to the surface 21.

  The engagement protrusion 37 has an insertion portion 51 erected in the Z direction perpendicular to the back surface 31, and an engagement portion 53 formed integrally with the distal end portion 51 </ b> A of the insertion portion 51. The insertion part 51 is formed in, for example, a rectangular parallelepiped shape extending in the Z direction, and the base end part 51 </ b> B is formed integrally with the skin material 16. The engagement protrusion 37 is formed of the same member as the skin material 16, for example. The engaging portion 53 is formed in a rectangular parallelepiped shape extending in the X direction parallel to the back surface 31. The distal end portion 51 </ b> A of the insertion portion 51 is connected to the substantially central portion of the engagement portion 53 in the X direction. Accordingly, the insertion portion 51 and the engagement portion 53 are T-shaped when viewed from the Y direction.

  The engaged portion 27 includes an insertion hole portion 61, a movement hole portion 63, and a restriction hole portion 65. The insertion hole 61 has a substantially rectangular shape in plan view, which is formed so as to penetrate the surface 21 in the Z direction in accordance with the shape of the upper surface of the engaging portion 53 in plan view as viewed from the Z direction. The moving hole 63 has a crank shape in which the shape viewed from the Z direction is curved in a substantially S shape. The restriction hole 65 has a rectangular shape in plan view, which is formed by penetrating the surface 21 in the Z direction in accordance with the shape of the insertion portion 51 in plan view as viewed from the Z direction. The moving hole 63 communicates with the insertion hole 61 and the restriction hole 65, and is formed to bend with a constant width W that matches the length L1 along the X direction of the insertion part 51. The first end 63 </ b> A of the moving hole 63 is connected to the approximate center of the insertion hole 61 in the X direction.

  In the engaged portion 27, a restriction claw 63 </ b> C is formed at a portion where the restriction hole 65 communicates with the second end 63 </ b> B opposite to the first end 63 </ b> A of the moving hole 63. The restricting claw portion 63 </ b> C is formed in a rectangular shape in plan view and protrudes inward from the side edge portion of the moving hole portion 63. The moving hole 63 has a width W (hole diameter) narrowed at a portion connected to the restriction hole 65 by forming the restriction claw 63C.

  FIG. 8 shows a state in the process of attaching the skin material 16 to the base material 15. In the attaching operation, as shown in FIG. 8, the skin material 16 is slid in a direction in which the skin material 16 is relatively approached to the base material 15 (the direction of the arrow 100 in the figure). At this time, it is preferable that the skin material 16 is slid while the tips of the minute protrusions 33 and the engagement protrusions 37 are turned on the surface 21 of the base material 15. For example, as shown in FIG. 1, among the plurality of engaged portions 27, the engaged portion 27 </ b> A is formed in the armrest 12 portion. A plurality of engaged portions 27A (three in this embodiment) are provided at predetermined positions in the positions along the end of the mounting surface 15A on which the driver's arm or the like of the base material 15 is placed. ) Is formed. As shown in detail in FIG. 8, the engaged portion 27A is formed at the rising portion of the base material 15 in the bending portion 12A. For this reason, when the engagement protrusion 37 is slid along the surface 21 of the base material 15, it slides to the position of the engaged portion 27 </ b> A provided at the rising portion of the bending portion 12 </ b> A, as shown in FIG. 9. In addition, the engaging portion 53 is inserted into the insertion hole 61. In this attachment method, for example, in a state where the engagement protrusions 37 are arranged at positions shifted by a predetermined distance from the positions of the plurality of engaged portions 27 (including the engaged portions 27A) shown in FIG. By sliding the material 16, each of the engagement protrusions 37 can be easily guided and inserted into the engaged portion 27. Furthermore, if the hole diameter of the insertion hole 61 is sufficiently larger than the size of the engagement part 53, the sliding engagement part 53 can be more easily inserted into the insertion hole 61. Thereby, it becomes possible to perform the attachment operation | work to the to-be-engaged part 27 of the engagement protrusion 37 more easily.

  As shown in FIG. 9, the engagement protrusion 37 is inserted to a position where the entire engagement portion 53 and a part of the insertion portion 51 protrude from the back surface 29 (surface opposite to the front surface 21) of the base material 15. The For example, the operator may pull the engaging portion 53 with a finger until a part of the insertion portion 51 protrudes toward the back surface 29 side. In this state, since the moving hole portion 63 is formed in accordance with the size of the insertion portion 51, the engaging protrusion 37 can be moved along the moving hole portion 63.

  For example, the operator picks the engagement portion 53 inserted into the insertion hole 61 with his / her finger and moves the engagement protrusion 37 in the movement hole 63 toward the restriction hole 65 as shown in FIG. Since the moving hole portion 63 has a crank shape, when the insertion portion 51 moving in the movement hole portion 63 tries to move along the Y direction, a part of the insertion portion 51 becomes part of the movement hole portion 63. It will contact or engage the inner wall. For this reason, even if the force along the Y direction which returns to the insertion hole 61 side acts by the elastic force, the insertion part 51 is restricted from moving by contacting the inner wall of the moving hole 63 or the like. . This restricts the engagement protrusion 37 during work (moving in the moving hole 63) from returning to the insertion hole 61 side, thereby improving work efficiency.

  The operator moves the engagement protrusion 37 to the second end 63 </ b> B, and then moves the insertion portion 51 into the restriction hole 65. At this time, since the restricting claw 63C is formed in the moving hole 63, at least one of the insertion portion 51 and the restricting claw 63C (second end portion 63B) is elastically deformed while the insertion portion 51 is being deformed. Is moved into the restriction hole 65.

  As shown in FIG. 11, the engagement protrusion 37 inserted into the restriction hole 65 is restricted by the restriction claw 63 </ b> C from moving the insertion part 51 to the movement hole 63. Further, the restriction hole 65 is formed in accordance with the shape of the insertion part 51, and is formed with a smaller hole diameter than the insertion hole 61. When the engagement protrusion 37 moves in the removal direction (downward in FIG. 11), the lower surface of the engagement portion 53 is engaged with the back surface 29. Thereby, the engaging part 53 is prevented from coming off to the surface 21 side. In this way, the skin material 16 is attached to the base material 15. Similarly, each of the engagement protrusions 37 is also engaged with the other engaged portion 27 shown in FIG.

  Even if the insertion portion 51 exits from the regulation hole 65 to the movement hole 63, the insertion hole 51 cannot easily return to the insertion hole 61 because the movement hole 63 has a crank shape. For this reason, it is possible to prevent the engagement protrusion 37 from coming off from the base material 15 as much as possible.

  Further, in the door trim 10 of the present embodiment, as shown in the enlarged view in FIG. 6, the tip 33 </ b> A of the minute protrusion 33 of the skin material 16 is in close contact with the surface 21 of the base material 15 in order to give a predetermined tactile sensation. It is attached in the state of letting it. Therefore, the height H2 in the Z direction of the insertion portion 51 shown in FIG. 7, in other words, the distance from the back surface 31 of the skin material 16 to the lower surface of the engagement portion 53 is the height H of the microprojection 33 (FIG. 4). It is preferable that the size be adapted to the reference). For example, the height H2 may be the same as the height H or slightly larger than the height H. Thereby, when the engagement protrusion 37 is attached to the engaged portion 27, the tip end portion 33 </ b> A of the minute protrusion 33 can be suitably brought into close contact with the surface 21 of the base material 15.

  Incidentally, the door trim 10 is an example of a superposed composite part. The base material 15 is an example of a first member. The surface 21 is an example of a first mating surface. The skin material 16 is an example of a second member. The back surface 31 is an example of a second mating surface. The minute protrusion 33 is an example of a protrusion.

As mentioned above, according to above-mentioned embodiment, there exist the following effects.
The engagement protrusion 37 provided on the skin material 16 of the embodiment is provided with an insertion portion 51 protruding from the back surface 31 and an engagement portion 53 formed at the distal end portion 51 </ b> A of the insertion portion 51. In the work of attaching the skin material 16 to the base material 15, the insertion portion 51 and the engagement portion 53 inserted into the insertion hole portion 61 are moved from the insertion hole portion 61 toward the restriction hole portion 65 along the crank shape of the moving hole portion 63. To move. In the state where the insertion portion 51 is inserted into the restriction hole portion 65, the lower surface of the engagement portion 53 engages with the back surface 29 of the base material 15 at the periphery of the restriction hole portion 65. As a result, the engaged portion 27 is restricted from moving in the removal direction (downward in FIG. 7). Accordingly, the skin material 16 is prevented from being displaced or rattled with respect to the base material 15.

  Further, the engagement protrusion 37 is provided on the bending portion 12A of the armrest 12 that is bent so that the design surface side is recessed, and is bent by being engaged with the engaged portion 27 provided on the base material 15. The base material 15 and the skin material 16 in the portion 12A are held so as not to be displaced from each other. Thereby, it is possible to improve the product quality of the door trim 10 by preventing the skin material 16 from sagging and wrinkling, lifting and the like.

  The moving hole 63 is formed in accordance with the size of the insertion portion 51 (such as the length L1 shown in FIG. 7), and is formed with a width W (hole diameter) that is smaller than the size of the engaging portion 53. ing. This prevents the engaging portion 53 from coming out of the moving hole 63 when the engaging protrusion 37 is moved in the moving hole 63 in the attaching operation, and prevents the operation from becoming complicated. It becomes possible.

  The restricting claw portion 63C is formed at a portion where the restricting hole portion 65 and the second end portion 63B communicate with each other. The movement hole 63 is formed with the restricting claw 63C so that the width W of the portion connected to the restriction hole 65 is narrow. As a result, the engagement protrusion 37 once inserted into the restriction hole 65 is restricted from moving back toward the moving hole 63 when the insertion portion 51 engages with the restriction claw 63C.

  The moving hole 63 has a crank shape in which the shape of the base material 15 in plan view is curved in an approximately S shape (see FIG. 7). Thereby, for example, when the insertion portion 51 is moved from the insertion hole portion 61 to the restriction hole portion 65 in the attaching operation, the insertion portion 51 returns to the insertion hole portion 61 side due to the elastic force of the skin material 16. This makes it possible to facilitate the installation work.

Although the present invention has been described based on the embodiments, the present invention is not limited to the above-described embodiments, and various improvements and modifications can be made without departing from the spirit of the present invention.
For example, the shapes and the like of the engaged portion 27 and the engaging protrusion 37 in the above embodiment are examples, and can be changed as appropriate. For example, as shown in FIG. 12, a pair of regulating rods 71 may be provided on the back surface 29 of the base material 15. In the following description, the same reference numerals are given to the same components as those in the above embodiment, and the description thereof is omitted as appropriate.

  In the engaged portion 27 shown in FIG. 12, unlike the above embodiment, the moving hole 73 is formed in a straight line shape along the Y direction. The moving hole 73 has a first end 73 </ b> A communicating with the center of the insertion hole 61 in the X direction. The moving hole portion 73 is formed along the Y direction from the first end portion 73A toward the opposite second end portion 73B while keeping the width W in the X direction constant. The second end 73 </ b> B of the moving hole 73 communicates with the restriction hole 75. The width of the restriction hole 75 in the X direction is the same as the width W of the moving hole 73.

  The pair of restriction rods 71 are provided at positions that engage with the engagement portion 53 when the insertion portion 51 of the engagement protrusion 37 is inserted into the restriction hole portion 75. A distance L2 between the pair of regulating rods 71 in the X direction is shorter than a length L3 of the engaging portion 53 of the engaging protrusion 37 in the X direction. Each of the regulation bars 71 is erected in the vertical direction of the back surface 29. The restriction rod 71 may be, for example, a cylinder or a square pole, and the shape can be changed as appropriate. Further, the regulation rod 71 may be formed integrally with the same material as the base material 15, or may be formed as a separate member from the base material 15, for example.

  In the attaching operation, for example, the operator moves the insertion portion 51 of the engagement protrusion 37 inserted into the insertion hole portion 61 in the movement hole portion 73 along the Y direction. Then, as shown in FIG. 13, the operator places the engaging protrusion 37 at a position in front of the regulating rod 71 by a predetermined distance, for example, in the direction of the arrow shown in the figure (a line along the orthogonal direction of the back surface 29. Is rotated (twisted) so that the longitudinal direction of the engaging portion 53 is along the Y direction. In this state, the engaging portion 53 is inserted into the gap between the restriction rods 71, and the insertion portion 51 is disposed in the restriction hole portion 75.

  Next, as shown in FIG. 14, the engagement protrusion 37 is rotated in the clockwise direction. For example, the entire engaging portion 53 moves to the side opposite to the insertion hole portion 61 with respect to the regulating rod 71 while being partly elastically deformed by hitting the regulating rod 71 during rotation. When the movement of the entire engaging portion 53 is completed, the engaging protrusion 37 is restricted from moving when the engaging portion 53 is engaged with the restricting rod 71 when a force moving toward the insertion hole 61 is applied. Is done. Also in the engaged portion 27 having such a configuration, it is possible to obtain the same effect as in the above embodiment.

  Further, the engaged portion 27 may be configured to include a restriction member 81 shown in FIG. 15 instead of the restriction rod 71 described above. In the engaged portion 27 shown in FIG. 15, a pair of regulating members 81 is provided at a portion where the second end 73 </ b> B of the moving hole 73 and the regulating hole 75 communicate with each other. The pair of restricting members 81 are arranged at outer positions provided with a predetermined interval in the X direction from the moving hole portion 73 along the Y direction. Therefore, the pair of restricting members 81 are arranged with the moving hole 73 interposed between the X directions.

  The distance L4 in the X direction of the pair of regulating members 81 is a shorter distance than the length L3 of the engaging portion 53 in the X direction. Each of the regulating members 81 is provided with a first plate portion 85 erected in the vertical direction of the back surface 29, and one end in the Y direction (the back side in the drawing) from the tip portion in the Z direction of the first plate portion 85. And a second plate part 86 formed. The first plate portion 85 has a plate shape whose plane is along the X direction and the Z direction. The 2nd board part 86 has comprised the plate shape in which the plane followed the X direction and the Y direction. Therefore, the regulating member 81 has an L shape when viewed from one side in the X direction. The height H3 in the Z direction of the first plate portion 85 is the same as the height H4 in the Z direction of the engaging portion 53 or slightly larger than the height H4. For example, the regulating member 81 may be formed integrally with the same material as the base material 15, or may be formed as a separate member from the base material 15.

  In the attaching operation, for example, the operator moves the insertion portion 51 of the engagement protrusion 37 inserted into the insertion hole portion 61 in the movement hole portion 73 along the Y direction. Then, as shown in FIG. 16, the operator causes the engaging portion 53 to pass over the regulating member 81 in the Z direction (upward in the drawing) and get over the regulating member 81 in the Y direction. Move. At this time, for example, the insertion portion 51 is pulled in the Z direction, so that a part thereof is elastically deformed and stretched. The operator moves the engaging portion 53 to the back side (the back side in the Y direction in FIG. 16) from the restricting member 81, and then returns the front plate to the front side of the second plate portion 86 and the base material 15. The engaging portion 53 is fitted between them.

  As shown in FIG. 17, both end portions in the X direction of the engaging portion 53 are fitted into portions surrounded by the first plate portion 85, the second plate portion 86, and the back surface 29 of the base material 15. The engagement protrusion 37 is restricted from moving in the pulling direction and the insertion hole 61 side. Also in the engaged portion 27 having such a configuration, it is possible to obtain the same effect as in the above embodiment.

  Further, the restricting member 81 restricts the movement of the engaging protrusion 37 in the Z direction by the second plate portion 86 engaging with the upper surface of the engaging portion 53. The engagement protrusion 37 is held by the restricting member 81 at both ends in the X direction of the engagement portion 53 when a force that moves in the Z direction (upward in FIG. 17) is applied. As shown by, it will be deformed into an arc shape (bow) in the Z direction. The degree of deformation (angle, etc.) of the engaging portion 53 with respect to the applied force depends on the material of the member, the distance L4 between the regulating members 81 (see FIG. 15), the length L3 of the engaging portion 53, and the like. Will be changed according to

  Here, in the door trim 10 according to the above-described embodiment, when the driver or the like presses the skin material 16, the tip 33 </ b> A of the minute protrusion 33 is pressed against the surface 21 of the base material 15 and is elastically deformed. Is granted. For this reason, it is not preferable that the movement of the engaging protrusion 37 in the Z direction is restricted and a part of the skin material 16 is difficult to elastically deform in the Z direction. On the other hand, in order to maintain cushioning properties, it is preferable that a certain distance (space 18) is provided between the surface 21 of the base material 15 and the back surface 31 of the skin material 16. That is, it is preferable that the distance between the front surface 21 and the rear surface 31 is kept constant.

  In the configuration shown in FIG. 17, the regulating member 81 prevents displacement of the base material 15 with respect to the skin material 16 by restricting the movement of the engagement protrusion 37 in the Z direction, and the base material 15 and the skin material 16 are separated. It becomes possible to keep a certain distance. On the other hand, when the driver or the like presses the skin material 16, the engagement portion 53 is bent in an arc shape in the Z direction, so that the cushioning property can be suitably maintained. Note that the engaged portion 27 may be configured to include both the restriction rod 71 and the restriction member 81 described above.

  Moreover, in the said embodiment, although it does not mention in particular, an example of the manufacturing method of the skin material 16 is demonstrated below. FIG. 18 is a diagram schematically illustrating an example of a method for manufacturing the skin material 16 having the minute protrusions 33 and the engagement protrusions 37 using a mold. In manufacture of the skin material 16 of the said embodiment, it is necessary to form curved parts, such as the outer periphery edge part 35 and the armrest 12. FIG. For example, as shown in FIG. 18, it is conceivable to manufacture using a mold 91 and a push piece 93 that can move relative to the mold 91. A die 95 and a push piece 93 shown in FIG. 18 are formed with a die 95 that matches the shape of the minute protrusions 33 and the engaging protrusions 37. The push piece 93 is formed with a convex mold 95A that protrudes in accordance with the inner shape of the outer peripheral end portion 35. In addition, the mold 91 is formed with a recessed die 95 </ b> B that is depressed in accordance with the shape of the outer peripheral surface of the outer peripheral end portion 35. A die 95 </ b> C corresponding to the engagement protrusion 37 is formed at a boundary portion between the die 91 and the push piece 93.

  A molten resin or the like is poured into the mold 91 and the mold 95 of the push piece 93. Then, the pushing piece 93 is moved relative to the lower side of FIG. The molded outer peripheral end portion 35 moves while sticking to the convex die 95A of the push piece 93 and is peeled off from the die 95C of the die 91. Accordingly, the outer peripheral end portion 35 is easily peeled off from the mold 95 without being deformed, and the skin material 16 is easily detached from the mold 91 and the push piece 93. Further, by providing the engagement protrusion 37 with the die 95C on the side surface of the push piece 93 that moves linearly, it is possible to easily form the rectangular protrusion or the flat engagement protrusion 37.

  In the above embodiment, the shape of the engagement protrusion 37 is not limited to the T shape, and may be an L shape or a cross shape. Further, the engagement protrusion 37 may have a configuration in which a plurality of engagement portions 53 are provided for one insertion portion 51. Further, the engaging portion 53 may be provided at a predetermined angle without being provided perpendicular to the insertion portion 51.

Further, the material of the base material 15 is not limited to a hard synthetic resin material, and other materials such as metals can be used. The material of the skin material 16 may be not only various resin materials but also a laminated material in which a woven fabric, a nonwoven fabric, a knitted fabric or the like is bonded to a resin sheet.
Moreover, when using the 1st member in this application as a skin material, a comparatively hard base material can also be arrange | positioned to the back surface side (opposite side of protrusion) of a 2nd member as needed.

  Moreover, the shape of the microprotrusion 33 in the above embodiment is an example, and can be changed as appropriate. For example, the microprotrusions 33 are configured in a rectangular shape in plan view (see FIG. 3), but are not limited to this, and other shapes such as a square, a circle, an ellipse, or a curved shape curved in an arc shape, etc. It may be configured. Further, the minute protrusion 33 is not limited to the tapered shape, and may be a cube or an asymmetric shape. The plurality of microprojections 33 are not limited to the same shape, and may be configured by mixing different shapes. Further, the minute protrusions 33 are not limited to point-like protrusions, and may be constituted by, for example, a large number of elongated rib-like protrusions parallel to each other.

The lattice pattern 41 shown in FIG. 3 is not limited to a regular hexagon, but may be a regular triangle, a square, a rectangle, a rhombus, a parallelogram, or the like. The lattice pattern 41 may include polygons having different shapes.
In the above embodiment, the fine protrusions 33 are formed on the back surface 31 with a constant density. However, the present invention is not limited to this, and for example, the positions of the fine protrusions 33 may be different in the portion where the engagement protrusions 37 are formed. You may make it a position different from this part. The microprotrusions 33 bring the tip portion 33A into intimate contact with the surface 21 of the base material 15. However, there is a surface that brings the tip portion 33A into close contact with the engaged portion 27 in which the hole such as the insertion hole portion 61 is formed. No longer. For this reason, for example, the minute protrusions 33 may be provided at positions where the shapes of the engaged portions 27 are matched, and the tip portions 33A may be brought into close contact with the periphery of the holes of the engaged portions 27. Thereby, it becomes possible to maintain the cushioning property by the minute protrusion 33.
Moreover, in the said embodiment, the structure which does not provide the microprotrusion 33 in the skin material 16 may be sufficient. That is, the door trim 10 may be configured not to include the minute protrusions 33 for providing cushioning properties.

  Moreover, although the said embodiment demonstrated the example which applied the overlapping composite component in this application to the door trim 10, it is not limited to this. For example, the overlapped composite part may be applied to other vehicle interior parts such as luggage side trims and instrument panels, or ornaments attached to the interior parts. In addition, the superimposed composite component in the present application is not limited to a component used in a vehicle, but can be applied to a component that overlaps other members. Further, the present invention can be applied not only to plate-shaped panel parts but also to three-dimensional parts in which the second member is superimposed on the surface of the first member having a three-dimensionally curved three-dimensional shape.

10 Vehicle door trim (overlapping composite parts)
15 Base material (first member)
16 Skin material (second member)
21 Surface (first mating surface)
31 Back (second mating surface)
33 Minute protrusion (protrusion)
51 Insertion portion 51B Base end portion 53 Engagement portion 61 Insertion hole portion 65, 75 Restriction hole portion 63, 73 Movement hole portion 63C Restriction claw portion 71 Restriction rod 85 First plate portion 86 Second plate portion

Claims (7)

A first member having a first mating surface;
A second member that has a second mating surface that overlaps the first mating surface of the first member and is elastically deformable, and
The second member includes an insertion portion that protrudes from the second mating surface and is inserted into the first member, and an engagement portion that is provided in the insertion portion.
The first member is formed through the first mating surface and is formed with an insertion hole portion into which the insertion portion and the engagement portion of the second member are inserted, and with a smaller hole diameter than the insertion hole portion. A restriction hole portion that engages with the inserted engagement portion and restricts the engagement portion from moving toward the base end side of the insertion portion, and the insertion hole portion and the restriction hole portion are connected to each other. A superposed composite component comprising: a moving hole portion that is formed to have a hole diameter that allows the insertion portion to communicate with each other.   The overlapping composite component according to claim 1, wherein the engagement portion is formed in a direction perpendicular to a protruding direction of the insertion portion.   The moving hole portion is provided with a restriction claw portion for restricting the insertion portion accommodated in the restriction hole portion from moving to the movement hole portion, in a portion communicating with the restriction hole portion. The superposed composite part according to claim 1 or 2.   The overlapping composite according to any one of claims 1 to 3, wherein the moving hole portion is formed in a shape curved with respect to a straight line connecting the insertion hole portion and the restriction hole portion. parts. The engaging portion is formed in a direction perpendicular to the protruding direction of the insertion portion,
The first member is erected on the back surface facing the first mating surface and engages with the engaging portion to restrict the insertion portion inserted into the restriction hole portion from moving to the moving hole portion. The superposed composite part according to any one of claims 1 to 4, further comprising a restriction rod that performs the control. The engaging portion is formed in a direction perpendicular to the protruding direction of the insertion portion,
The first member is
The insertion portion that is erected on the back surface facing the first mating surface and is formed in the vertical direction of the back surface and engages with the engagement portion, so that the insertion portion inserted into the restriction hole portion becomes the moving hole portion. A first plate portion for restricting movement;
Provided on the first plate part, formed in a direction parallel to the back surface, and engaged with the engagement part, the engagement part moves toward the distal end side of the insertion part. A second plate part that regulates
The said engaging part is accommodated in the part enclosed by the said 1st board part, the said 2nd board part, and the said back surface, The Claim 1 thru | or 5 characterized by the above-mentioned. Superposed composite parts. The second mating surface is formed with a plurality of projections projecting toward the first mating surface,
The second member is disposed so that the protrusion of the second mating surface is overlapped with the first member in a state of being in contact with the first mating surface, and the protrusion is disposed on the first mating surface. The superimposed composite component according to any one of claims 1 to 6, wherein cushioning properties are imparted by being pressed and elastically deformed.

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