JP2015152158A - Fitting structure and sheath member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fitting structure capable of easily fitting a first member and a second member while preventing wrong assembly, and a sheath component including the fitting structure.SOLUTION: A guide part 231 contacts with an inclination surface 321C to guide a locked part 32 toward an insertion hole 221. Consequently, by making a body part 2 and a lip part 3 relatively approach in a Z direction, wrong assembly can be prevented and further the locked part 32 can be easily locked to a locking part 22.

Description

  The present invention provides a fitting structure in which the first member and the second member are fitted by locking the locked portion provided in the second member by the locking portion provided in the first member. The present invention also relates to an exterior part having the fitting structure.

  Conventionally, the main body portion and the lid portion are fitted by locking the locked portion provided in the lid portion (second member) by the locking portion provided in the main body portion (first member). A protector (exterior member) for a wire harness provided with a fitting structure has been proposed (see, for example, Patent Document 1). As shown in FIG. 4, in the protector fitting structure 100 described in Patent Document 1, a locking portion 101 is provided in an insertion hole 103 through which a protruding locked portion 102 is inserted and in the vicinity thereof. The elastic piece 104 and a deformation hole 105 for elastically deforming the elastic piece 104 are provided. In such a fitting structure 100, since the width dimension LY of the deformation hole 105 is sufficiently larger than the maximum width dimension LX of the locked part 102, the main body part and the lid part can be displaced. When deformation occurs and the locked portion 102 is inserted into the deformation hole 105, the misassembly is easily released.

JP 2005-168132 A

  However, in the protector fitting structure 100 described in Patent Document 1, when the displacement of the locked portion 102 toward the deformation hole 105 increases, the locked portion 102 inserted into the deformation hole 105 is surrounded by the surrounding portion. There is a possibility that it is difficult to cancel the erroneous assembly because the frame portion 106 is locked. In addition, it is difficult for the operator to assemble while correcting such a positional shift manually.

  An object of the present invention is to provide a fitting structure capable of easily fitting a first member and a second member while preventing erroneous assembly, and an exterior part including the fitting structure. .

  In the fitting structure of the present invention, the first member and the other side on one side in the opposite direction are locked by locking the locked portion provided on the second member by the locking portion provided on the first member. And the second member is fitted close to each other, and the locked portion is formed in a protruding shape extending in the facing direction, and is provided at a tip formed on the one side. And an arrowhead portion whose dimension in the crossing direction with the facing direction increases toward the other side, and a maximum formed on the other side of the arrowhead portion and on the other side of the arrowhead portion. A narrow portion having a dimension in the crossing direction smaller than that of the widened portion, and the locking portion is adjacent to the insertion hole through which the locked portion is inserted and the crossing direction of the insertion hole. Formed on the opposite side of the insertion hole across the elastic piece. A hole for deformation, and the elastic piece is formed to be elastically deformable on the deformation hole side by abutting against the inclined surface of the arrowhead, and between the maximum widened portion and the narrow width portion. It is comprised so that the level | step-difference part between can be latched, and the said 1st member is provided in the said other side rather than the said elastic piece, and contacts the said inclined surface, and the said to-be-latched part faces the said insertion hole It is provided with the guide part comprised so that guidance was possible.

  According to the present invention as described above, since the first member includes the guide portion on the other side of the elastic piece, the first member and the second member in a state where the locked portion is shifted to the deformation hole side. When the guide parts are brought close to each other in the opposite direction, the guide part comes into contact with the inclined surface and guides the locked part toward the insertion hole, so that the deviation in the crossing direction can be corrected. The first member and the second member can be easily fitted together while being prevented from being mis-assembled by being inserted into the hole.

  At this time, in the fitting structure of the present invention, it is preferable that the interval in the intersecting direction between the guide portion and the elastic piece is smaller than the dimension in the intersecting direction of the maximum widened portion. According to such a configuration, the gap between the guide portion and the elastic piece (that is, the gap) is smaller than the size of the maximum widened portion in the cross direction, so that the arrowhead portion is between the guide portion and the elastic piece. That is, it is possible to more reliably prevent the locked portion from being inserted through the deformation hole and erroneously assembled. Note that a gap in the intersecting direction may not be formed between the guide portion and the elastic piece (that is, the interval is 0), and the guide portion and the elastic piece may be displaced in the opposing direction and overlap in the intersecting direction.

  Furthermore, in the fitting structure of the present invention, the guide portion is configured to close at least a part of the deformation hole on the other side of the elastic piece, and the guide portion and the elastic piece are opposed to each other. The interval in the direction is preferably smaller than the length from the tip of the arrowhead to the maximum widened portion. According to such a configuration, the distance between the guide part and the elastic piece in the facing direction (that is, the gap) is smaller than the length from the tip part of the arrowhead part to the maximum widened part, so that the tip part is erroneously guided. And the elastic piece can be prevented from engaging with each other, and the erroneous assembly can be easily released.

  In the fitting structure of the present invention, it is preferable that the elastic piece is formed with a guide inclined surface such that the dimension of the insertion hole increases in the crossing direction toward the other side. . According to such a configuration, since the elastic piece has the guide inclined surface, the locked portion guided by the guide portion can be further guided toward the insertion hole by the guide inclined surface, and the erroneous assembly is further improved. It can be surely prevented.

  On the other hand, the exterior member of the present invention includes the fitting structure, and covers and protects the wire harness with the first member and the second member. According to the present invention as described above, the first member and the second member can be easily fitted while preventing erroneous assembly as described above, and the inner wire harness can be reliably protected.

  According to the fitting structure and the exterior member of the present invention as described above, the guide member abuts against the inclined surface and guides the locked portion toward the insertion hole, thereby preventing erroneous assembly. And the second member can be easily fitted.

It is a perspective view which shows the protector which concerns on embodiment of this invention. It is sectional drawing which shows the principal part of the main-body part and cover part of the said protector. It is sectional drawing which shows a mode that the to-be-latched part of the said cover part is latched to the latching | locking part of the said main-body part. It is sectional drawing which shows the fitting structure of the protector of a prior art.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, the protector 1 of the present embodiment has a flat plate shape as a second member including a hook-shaped main body portion 2 as a first member provided with a locking portion 22 and a locked portion 32. The cover part 3 is provided, and the main body part 2 and the cover part 3 are fitted with the fitting structure 10 to cover and protect a wire harness (not shown). Note that the X direction, the Y direction, and the Z direction in the present embodiment are as shown in FIG. 1, and the main body 2 and the lid 3 are configured so that they can be fitted together by being brought close to the opposing Z direction. ing.

  The main body 2 is, for example, a resin member that is integrally formed as a whole. The main body 2 is provided at the end of the side wall 21 that is erected on both sides in the X direction, and the locking portion 22 that can lock the locked portion 32. And a frame portion 23 surrounding the locking portion 22.

  As shown in FIG. 2, the locking portion 22 includes an insertion hole 221 formed along the side wall 21, and an elastic piece 222 provided on the opposite side (left side in the X direction) of the side wall 21 across the insertion hole 221. And a deformation hole 223 formed on the opposite side (left side in the X direction) of the insertion hole 221 with the elastic piece 222 interposed therebetween.

  The insertion hole 221 is formed between the side wall 21 and the elastic piece 222, and is formed so that the locked portion 32 can be inserted in the Z direction.

  The elastic piece 222 is provided on the back side (the lower side in the Z direction) of the main body part 2 and the lid part 3 in the opposite direction of the main body part 2 and the lid part 3 with respect to the guide part 231 to be described later when viewed from the locked part 32 and toward the upper side in the Z direction. Therefore, the insertion hole 221 has a guide inclined surface 222A that is inclined toward the left side in the X direction so that the dimension in the X direction is large, and is entirely formed to be elastically deformable in the X direction. The elastic piece 222 has a lower end portion 222B that can be engaged with a stepped portion 323 of the locked portion 32 described later.

  The frame portion 23 includes a guide portion 231 that is provided on the front side in the facing direction (upward in the Z direction) with respect to the elastic piece 222 when viewed from the lid portion 3 and is independent of the elastic piece 222. The guide portion 231 includes a blocking portion 231A that closes a part of the deformation hole 223 and is formed in an L-shaped cross section.

  As shown in FIG. 1, the lid portion 3 is, for example, a resin member that is integrally formed as a whole, and includes a flat plate portion 31 and a protruding engagement that extends in the Z direction from both ends of the flat plate portion 31 in the X direction. A stop 32.

  As shown in FIG. 2, the locked portion 32 is provided at the tip formed on the lower side in the Z direction and has an arrowhead portion 321 whose X direction dimension increases toward the upper side in the Z direction (the flat plate portion 31 side). A narrow portion 322 that is formed on the upper side in the Z direction than the arrowhead portion 321 and has a smaller width in the X direction than the maximum widened portion 321A that is the upper end portion in the Z direction of the arrowhead portion 321. A stepped portion 323 is formed between 321A and the narrow portion 322.

  The arrowhead part 321 has an inclined surface 321C that continues from the tip part 321B to the maximum widened part 321A.

  Next, the dimension of each part of the latching | locking part 22 and the to-be-latched part 32 is demonstrated. The X direction dimension L1 of the insertion hole 221 is formed smaller than the X direction dimension L2 of the maximum widened part 321A of the arrowhead part 321 and larger than the X direction dimension L3 of the narrow width part 322. Therefore, when the locked portion 32 is inserted into the insertion hole 221, the elastic piece 222 is elastically deformed to the left in the X direction by the arrowhead portion 321. When the stepped portion 323 reaches below the lower end portion 222B in the Z direction, the elastic piece 222 is restored to the initial position.

  The X-direction dimension L4 of the deformation hole 223 (that is, the X-direction interval between the elastic piece 222 and the frame portion 23) is larger than the difference between the X-direction dimension L2 of the maximum widened portion 321A and the X-direction dimension L1 of the insertion hole 221. Largely formed. Therefore, the elastic piece 222 is not prevented from being elastically deformed in the X direction by the maximum widened portion 321A.

  An interval L5 between the guide portion 231 and the elastic piece 222 in the X direction is formed to be smaller than an X direction dimension L2 of the maximum widened portion 321A. Further, the interval L6 in the Z direction between the closing portion 231A and the elastic piece 222 is formed to be smaller than the length L7 in the Z direction from the tip 321B of the arrowhead 321 to the maximum widened portion 321A.

  Next, the details of the fitting structure 10 between the main body 2 and the lid 3 and the procedure for locking the locked portion 32 to the locking portion 22 will be described with reference to FIG. First, in the initial state, the locking portion 22 and the locked portion 32 are in a positional relationship as shown in FIG. 3A, that is, the locked portion 32 is a deformation hole rather than the insertion hole 221. It is assumed that the position is shifted to the 223 side (left side in the X direction), and the tip 321B is in contact with the corner portion 231B of the guide portion 231.

  When the main body 2 and the lid 3 are relatively approached in the Z direction from the state shown in FIG. 3A, as shown in FIG. 3B, the inclined surface 321C of the arrowhead 321 is guided. By being in contact with the corner portion 231 </ b> B of 231, the locked portion 32 is guided to the insertion hole 221 side (right side in the X direction). At this time, the locked portion 32 guided by the guide portion 231 is transferred to the elastic piece 222, that is, the tip portion 321B of the locked portion 32 abuts on the guide inclined surface 222A of the elastic piece 222, and the inclined surface. 321 </ b> C is configured to simultaneously contact the guide portion 231 and the elastic piece 222.

  Further, when the main body 2 and the lid 3 are relatively approached in the Z direction, the inclined surface 321C of the arrowhead 321 is guided to the insertion hole 221 side by the guide inclined surface 222A of the elastic piece 222, and FIG. As shown in C), the elastic piece 222 is elastically deformed to the deformation hole 223 side (left side in the X direction) by the abutment of the arrowhead 321.

  Further, the main body 2 and the lid 3 are relatively approached in the Z direction, and the maximum widened portion 321A of the arrowhead 321 reaches below the lower end 222B of the elastic piece 222 in the Z direction as shown in FIG. Then, the elastic piece 222 is restored, and the lower end portion 222B and the stepped portion 323 of the locked portion 32 are engaged with each other to be in an engaged state.

  In the initial state, when the locked portion 32 is positioned on the deformation hole 223 side (left side in the X direction) from the position shown in FIG. 3A, the arrowhead portion 321 is located on the upper surface in the Z direction of the closing portion 231A. The abutted portion 32 is prevented from being inserted into the deformation hole 223. Moreover, when the to-be-latched part 32 is located in the insertion hole 221 side with respect to the position shown in FIG. 3A, when the main body part 2 and the lid part 3 are relatively approached in the Z direction, the arrowhead part The inclined surface 321C of 321 abuts on the guide portion 231 and the guide inclined surface 222A, and the engaged state shown in FIG.

  As described above, the fitting structure 10 shown in FIGS. 2 and 3 is provided on the front side in the X direction of the protector 1 in FIG. 1, and the protector 1 is not shown in the X direction on the back side. Is provided. The fitting structure on the back side in the X direction is formed symmetrically with the fitting structure 10 on the near side in the X direction with respect to a symmetry plane parallel to the YZ plane.

  According to this embodiment, there are the following effects. In other words, the guide portion 231 is configured to be able to guide the locked portion 32 toward the insertion hole 221 by contacting the inclined surface 321C, so that the main body portion 2 and the lid portion 3 are relatively approached in the Z direction. Accordingly, the locked portion 32 can be easily locked to the locking portion 22 while preventing erroneous assembly.

  Further, the gap L5 in the X direction between the guide portion 231 and the elastic piece 222 is formed to be smaller than the X direction dimension L2 of the maximum widened portion 321A, so that the arrowhead portion 321 is located between the guide portion 231 and the elastic piece 222. In other words, it is possible to more reliably prevent the locked portion 32 from being inserted through the deformation hole 223 and erroneously assembled.

  Further, the distance L6 in the Z direction between the closing portion 231A and the elastic piece 222 is formed to be smaller than the length L7 in the Z direction from the distal end portion 321B of the arrowhead portion 321 to the maximum widened portion 321A, thereby the distal end portion 321B. Even if it accidentally enters between the closed portion 231A and the elastic piece 222, the closed portion 231A and the stepped portion 323 are prevented from being engaged, and the erroneous assembly can be easily released.

  Furthermore, since the guide inclined surface 222A is formed on the elastic piece 222, the locked portion 32 can be guided more reliably toward the insertion hole 221 and erroneous assembly can be prevented.

  In addition, since the inclined surface 321C of the arrowhead 321 is provided so as to be able to contact the guide portion 231 and the guide inclined surface 222A at the same time, the tip portion 321B is prevented from entering the deformation hole 223, and The locking portion 32 can be guided more reliably toward the insertion hole 221.

  In addition, this invention is not limited to the said embodiment, Including other structures etc. which can achieve the objective of this invention, the deformation | transformation etc. which are shown below are also contained in this invention. For example, in the embodiment, the distance L5 in the X direction between the guide portion 231 and the elastic piece 222 is formed to be smaller than the dimension L2 in the X direction of the maximum widened portion 321A. The interval in the direction only needs to be set appropriately according to the shape of the arrowhead portion or the guide portion so that the locked portion can be prevented from being erroneously inserted into the deformation hole.

  In the above embodiment, the distance L6 between the closing portion 231A and the elastic piece 222 in the Z direction is smaller than the length L7 in the Z direction from the tip 321B of the arrowhead 321 to the maximum widened portion 321A. However, the interval between the closing portion and the elastic piece in the Z direction may be set as appropriate so as to prevent the closing portion and the stepped portion from being erroneously engaged with each other. It may be formed sufficiently large so that it can be easily removed even when engaged.

  In the above-described embodiment, the elastic piece 222 has the guide inclined surface 222A. However, the elastic piece may not have the guide inclined surface, and the corner of the elastic piece is the inclined surface of the arrowhead. It may be configured to abut and guide the locked portion toward the insertion hole, or the blocking portion can guide the locked portion until the locked portion is substantially in the same position as the insertion hole in the X direction. The elastic piece may be configured to be deformed by the arrowhead portion of the locked portion inserted into the insertion hole along the Z direction.

  In the embodiment, the guide portion 231 includes the closing portion 231A that closes a part of the deformation hole 223. However, the guide portion may include a closing portion that closes the entire deformation hole. According to such a structure, it can prevent more reliably that the to-be-latched part is accidentally inserted into the deformation hole. Further, the guide portion may be configured not to block the deformation hole, and provided that the guide portion is provided on the lid side (upper side in the Z direction) than the elastic piece and can guide the locked portion to the insertion hole side. It may be formed with any shape.

  In the embodiment, the inclined surface 321C of the arrowhead portion 321 and the corner portion 231B on the right side in the X direction of the guide portion 231 are in contact, but the guide inclined surface substantially parallel to the inclined surface of the arrowhead portion is the guide portion. May be formed at the right end of the X direction, and according to such a configuration, the arrowhead can be easily guided by the guide.

  Moreover, in the said embodiment, although the protector 1 provided with the fitting structure 10 was illustrated, the fitting structure was provided with not only the protector but the arbitrary 1st members provided with the latching | locking part, and the to-be-latched part. An arbitrary second member may be fitted.

  In addition, the best configuration, method and the like for carrying out the present invention have been disclosed in the above description, but the present invention is not limited to this. That is, the invention has been illustrated and described primarily with respect to particular embodiments, but may be configured for the above-described embodiments without departing from the scope and spirit of the invention. Various modifications can be made by those skilled in the art in terms of materials, quantity, and other detailed configurations. Therefore, the description limiting the shape, material, etc. disclosed above is an example for easy understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded the limitation of one part or all of such is included in this invention.

1 Protector (Exterior material)
2 Main body (first member)
3 Lid (second member)
DESCRIPTION OF SYMBOLS 10 Fitting structure 22 Locking part 32 Locked part 221 Insertion hole 222 Elastic piece 223 Deformation hole 231 Guide part 321 Arrow tip part 322 Narrow part 323 Step part 222A Guide inclined surface 321A Maximum widened part 321B Tip part 321C Inclined surface

Claims (5)

By locking the locked portion provided on the second member by the locking portion provided on the first member, the first member on one side in the opposing direction and the second member on the other side are mutually connected. It is a fitting structure to be fitted close to each other,
The locked portion is formed in a protruding shape extending in the facing direction, is provided at a tip formed on the one side, and increases in dimension in a direction intersecting with the facing direction toward the other side. And a narrow portion formed on the other side of the arrowhead portion and having a dimension in the intersecting direction smaller than a maximum widened portion that is an end portion on the other side of the arrowhead portion. ,
The locking portion includes an insertion hole through which the locked portion is inserted, an elastic piece provided adjacent to the insertion direction in the intersecting direction, and an opposite side of the insertion hole with the elastic piece interposed therebetween. A deformation hole formed,
The elastic piece can be elastically deformed on the deformation hole side by abutting against the inclined surface of the arrowhead, and can latch the stepped portion between the maximum widened portion and the narrow width portion. Composed of
The first member includes a guide portion provided on the other side of the elastic piece and configured to be able to guide the locked portion toward the insertion hole by contacting the inclined surface. Features a fitting structure.   The fitting structure according to claim 1, wherein an interval between the guide portion and the elastic piece in the intersecting direction is smaller than a dimension of the maximum widened portion in the intersecting direction. The guide portion is configured to close at least a part of the deformation hole on the other side of the elastic piece,
The fitting structure according to claim 2, wherein a distance between the guide portion and the elastic piece in the facing direction is smaller than a length from a tip portion of the arrowhead portion to the maximum widened portion.   The said elastic piece has a guide inclined surface which the dimension of the said crossing direction of the said insertion hole becomes large as it goes to the said other side, The any one of Claims 1-3 characterized by the above-mentioned. The fitting structure according to item.   An exterior member comprising the fitting structure according to claim 1, wherein the wire harness is covered and protected by the first member and the second member.

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