JP2008150004A - Attaching structure of attachment for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an attaching structure of an attachment for an automobile capable of preventing any careless fall of the attachment from an attachment opening. <P>SOLUTION: An engagement piece body 5 has a pair of leg piece parts 5a erected in a separated manner from each other from an escutcheon 4 side and a connection piece part 5b for connecting fore ends of the leg piece parts 5a when attaching the escutcheon 4 to an arm rest 2 by engaging an engagement claw part 5c of the engagement piece body 5 formed on the escutcheon 4 with a circumferential wall edge 2a of an attachment opening 3 formed in the armrest 2. The engagement claw part 5c is formed on the connection piece part 5b. In addition, an abutting projection part 6 projecting to a wall surface 3b side is formed on a fore end wall part 5d present on the fore end side from the engagement claw part 5c in the connection piece part 5b so that the wall surface 3b of the attachment opening 3 is constantly abutted. The projecting dimension from the fore end wall part 6a at the abutting projection part 6 is set to be substantially equal to the maximum spacing dimension X2 generated by the attaching error between the fore end wall part 6a and the wall surface 3b of the attachment opening 3. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  According to the present invention, the attachment part is attached to the attachment part by overlapping the engagement claw part of the engagement piece formed in the attachment part to the peripheral wall edge of the attachment opening formed in the attachment part. The present invention relates to a mounting structure for automobile mounting parts.

  The present invention is a case where a door switch finisher or an escutcheon that is a mounting part is mounted on an armrest of a door trim that is a mounting part, a pillar garnish that is a mounting part is mounted on a vehicle body side pillar that is a mounting part, or It has been devised to be applied to a case where a kicking plate as an attachment part is attached to a vehicle body side sill as an attachment site.

2. Description of the Related Art Conventionally, as an attachment structure for this kind of automobile attachment component, for example, an attachment structure for attaching an escutcheon onto an armrest of a door trim that is an attachment site is known (see Patent Document 1).
Japanese Patent Application Laid-Open No. 11-227460.

  In the conventional mounting structure for mounting an automobile, in order to insert and fix the escutcheon in the mounting opening on the upper surface of the door trim, a locking claw is appropriately formed on the back surface of the escutcheon, and the locking claw is attached to the peripheral wall of the mounting opening. It was done by locking to the part.

  The locking claw has a substantially L shape in the longitudinal direction, and is configured to engage the distal side hook-shaped portion with the peripheral wall portion of the mounting opening.

  Therefore, in order to make the engagement state of the engagement claw with the engagement claw firm, the engagement claw is increased in thickness, or the engagement overlap portion with the attachment opening in the front side hook-shaped portion is increased. On the other hand, when engaging the locking claw with the peripheral wall portion of the mounting opening, it is difficult for the locking claw to be elastically deformed when engaging the peripheral wall portion of the mounting opening while elastically deforming the locking claw. If it becomes a shape or the engagement width of the locking claw becomes too large, the mounting operation becomes difficult. On the other hand, the locking claw can be easily elastically deformed when engaged, If the engagement wrap cost is small, the escutcheon will be inadvertently dropped from the mounting opening and cannot be used as a mounting structure.

  In view of the above points, a so-called gate-shaped structure as shown in FIGS. 10 to 12 has been conventionally employed as the locking claw structure.

  According to this, a pair of leg pieces b, b are erected on the attachment part a side, and the tip portions of the leg pieces b, b are connected by the connecting piece c, and the connecting piece c has a triangular chevron shape. The engaging claw d is formed by projecting, and the engaging claw d is hooked and engaged with the peripheral wall part g of the mounting opening f formed in the attached part e, whereby the attachment part a is attached to the attached part e. It is intended to be attached to.

  With this configuration, since the engaging claw d is formed on the pair of leg pieces b, b via the connecting piece c, the elastic deformation of both leg pieces b, b with respect to the attachment site e. This is intended to enable setting of the force and the engagement wrap margin of the engagement claw d with the attachment opening f with some degree of design freedom.

  The process of hooking and engaging the engaging claw portion d with the peripheral wall portion g of the attachment opening f will be described. First, as shown in FIG. 11, the engagement claw portion d is engaged with the peripheral wall portion g of the attachment opening f provided at the attachment site e. The joint claw d is opposed to each other, and the attachment part a is moved in the direction of the arrow h.

  As a result, as shown in FIG. 12, since the engaging claw d is formed in a triangular slope shape, it is attached from the normal state indicated by the two-dot chain line in FIG. The leg pieces b, b are once elastically deformed in the direction of the arrow i in the state where they are pushed back to the inner side of the opening f (shown by the solid line in FIG. 12), and the engaging claw d is entered into the mounting opening f. When the engagement claw d is inserted through the attachment opening f, the engagement claw d comes into contact with and engages with the peripheral wall part g of the attachment opening f in a state where all the elastic claws are restored but not returned. The attachment part a is attached to the attachment site e.

  However, the position of the mounting opening f of the mounting part e and the position of the engaging claw d of the mounting part a are related to manufacturing errors or the mounting position of the mounting part a is related to the mounted part. When the engagement position between the peripheral wall part g and the engagement claw part d varies, even if all the elastic deformation of the engagement claw part d is restored to the original position, the engagement of the engagement claw part d to the peripheral wall part g As shown in FIG. 13, the combined wrap margin may become small, and in this case, there is a possibility that the attachment part a may be accidentally dropped from the attachment opening f.

  Accordingly, the present invention provides a peripheral wall of the mounting opening even if the position of the mounting opening of the mounting site or the position of the engaging claw of the mounting component is a manufacturing error or the mounting position of the mounting component is related to the mounted component. Even when there is a variation between the engaging claw and the engaging claw, it is possible to always secure a predetermined allowance for the engaging wrap to the peripheral wall portion of the engaging claw so that the fixing opening from the mounting opening in the mounting part can be secured. It is an object of the present invention to provide a mounting structure for a mounting part for an automobile, which is designed to prevent a ready dropout.

  The mounting structure for an automobile mounting part according to the present invention is such that the engaging part of the engaging piece formed in the mounting part is engaged with the peripheral edge of the mounting opening formed in the mounting site. A mounting structure for an automobile part adapted to be mounted on the mounting site, wherein the engaging piece body is erected in a state of being separated from the mounting part, and a pair of leg piece parts. The engaging claw portion is formed on the connecting piece portion, and the tip wall portion of the connecting piece portion located on the front end side of the engaging claw portion is further provided with the connecting claw portion. A contact protrusion that protrudes toward the wall surface side of the peripheral wall edge is formed so that the wall surface of the peripheral wall edge of the mounting opening always contacts, and the protrusion dimension of the contact protrusion from the tip wall is determined by the tip. Wall surface and wall surface of peripheral wall edge of mounting opening And wherein the set substantially equal dimensions to the maximum gap size caused by the installation error of.

  According to the present invention configured as described above, the peripheral wall edge portion of the connecting piece portion so that the wall surface of the peripheral wall edge portion of the mounting opening is always in contact with the distal end wall portion existing on the distal end side from the engaging claw portion. By forming a contact protrusion that protrudes toward the wall surface, the protrusion dimension of the contact protrusion from the tip wall is defined as the maximum gap size caused by an attachment error between the tip wall and the wall surface of the peripheral wall edge of the attachment opening. Because the dimensions are set to be approximately the same, the position where the mounting opening of the mounted part is formed and the position where the engaging claw of the mounting part is formed are caused by manufacturing errors, or the mounting position of the mounting part is related to the mounted part. Even if there is a dimensional variation between the tip wall portion located on the tip side of the engagement claw portion in the engagement piece body and the wall surface of the peripheral wall edge portion of the attachment opening, the peripheral wall of the attachment opening in the constant engagement claw portion Engagement at the edge Tsu the up fee it is possible to always ensure a predetermined size fraction.

  That is, when the dimensional variation is minimal, the engaging piece is elastically deformed toward the center of the mounting opening when the protrusion comes into contact with the wall surface of the peripheral wall edge of the mounting opening. The engagement lap allowance of the mounting opening to the peripheral wall edge of the mounting opening can secure a predetermined dimension, and when the dimensional variation is maximum, the contact protrusion is brought into contact with the wall surface of the peripheral wall edge of the mounting opening. Even if some elastic deformation of the engaging piece occurs, the engagement wrap margin to the peripheral wall edge portion of the mounting opening in the engaging claw portion can be secured to a predetermined dimension.

  Next, an embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 is a perspective view in which an embodiment according to the present invention is adopted and an armrest in a door trim, which is an attachment site, and an escutcheon, which is an attachment part attached to the armrest, are divided and drawn, and FIG. 2 is shown in FIG. FIG. 3 is a cross-sectional view taken along the line AA in FIG. 2 and FIG. 4 is a view in FIG. 2 depicting a state just before attaching the escutcheon to the armrest in FIG. -A cross-sectional view, FIG. 5 is a cross-sectional view taken along the line A-A in FIG. 2 in which the escutcheon is attached to the armrest in FIG. 1, and FIG. 6 is a view in which the escutcheon is attached to the armrest in FIG. It is AA sectional drawing.

  In FIG. 1, an armrest 2 projects from a door trim 1 mounted on the vehicle compartment side of a door of an automobile, and the armrest 2 has a mounting opening 3 partitioned by an intermediate bridging piece 2b on an upper shelf 2a. It forms and constitutes a to-be-attached part.

  By engaging with the peripheral wall edge 3a of the mounting opening 3, an escutcheon 4 serving as a door switch finisher as a mounting part is mounted.

  That is, the escutcheon 4 has a door switch mounting portion 4a on the front side of the vehicle body and a pull handle portion 4b formed on the rear side of the vehicle body in a concave box shape. On the side and the front end side of the pull handle portion 4b, a pair of engagement pieces 5 and 5 that are engaged with the peripheral wall edge 3a of the attachment opening 3 are formed.

  The engaging claws 5, 5 each have a pair of leg pieces 5 a erected in a state of being separated from each other on the back side of the escutcheon 4 and a connecting piece portion 5 b for connecting the tips of both leg pieces 5 a, An engaging claw portion 5c is formed on the connecting piece portion 5b. Further, the engaging piece body 5 and 5 is always in contact with the wall surface 3b of the peripheral edge portion 3a of the mounting opening 3 on the distal end side of the engaging claw portion 5c. A contact protrusion 6 is provided.

  In such a configuration, in order to engage and mount the escutcheon 4 in the mounting opening 3 of the armrest 2, first, as shown in FIG. 4, the engaging piece body 5 is inserted into the mounting opening 3 from the connecting piece portion 5b side. Further, as shown in FIG. 5, the engaging claw portion 5c is pushed in the direction of the arrow by the wall surface 5c while the inclined surface of the engaging claw portion 5c slides on the wall surface 3b of the mounting opening 3. From the initial state indicated by the dotted line, the elastic deformation is performed toward the center of the mounting opening 3.

  From this state, the engaging claw portion 5c is further inserted into the mounting opening 3, and when the engaging claw portion 5c comes out of the wall surface 5c, as shown in FIG. Although the engagement claw 5c that has been elastically deformed tends to return to the initial state indicated by the two-dot chain line, the engagement claw 5c is in a state in which the contact protrusion 6 is in contact with the wall surface 3b of the mounting opening 3. Is stable in the state shown by the solid line and engages with the peripheral wall edge 3a of the mounting opening 3. In this state, the mounting screw 7 through which the bottom 4b1 of the pull handle 4b in the escutcheon 4 shown in FIG. The escutcheon 4 is attached to the armrest 2 by screwing it onto the mounting piece 2e of the armrest 2.

  In order to achieve the above configuration, the contact protrusion 6 is formed on the engagement claw 5c with reference to the tip wall 6a that is a contact surface with the wall 3b of the peripheral wall edge 3a as shown in FIG. The engagement wrap margin Z with the peripheral wall edge 3a is set to a predetermined dimension.

  The engagement lap allowance Z depends on the manufacturing error in the formation position of the attachment opening 3 formed in the armrest 2 or the formation position of the engagement claw portion 5c of the escutcheon 4 or the attachment position of the escutcheon 4 depending on the relationship with the armrest 2 or the like. In addition, it is set in consideration of the variation of the gap dimension generated between the distal end wall portion 5d existing on the distal end side of the engaging claw portion 5c in the connecting piece portion 5b and the wall surface 3b of the peripheral wall edge portion 3a of the mounting opening 3. .

  Specifically, as shown in FIG. 7, first, the manufacturing error in the formation position of the attachment opening 3 formed in the armrest 2 and the formation position of the engagement claw portion 5 c of the escutcheon 4 or the attachment position of the escutcheon 4 is the armrest 2. As a variation in the gap size between the tip wall portion 5d existing on the tip side of the engaging claw portion 5c in the connecting piece portion 5b and the wall surface 3b of the peripheral wall edge portion 3a of the mounting opening 3 from the X1 It occurs in the range of the width dimension of X2, the width dimension X1 side occurs as a minus side (that is, the gap dimension is a minus side with respect to the wall surface 3b, in other words, the gap dimension is the minimum side), and the width dimension X2 side is the plus side (that is, Assuming that the gap dimension occurs on the plus side with respect to the wall surface 3b, in other words, the gap dimension is the maximum side, the height dimension Y of the contact projection 6 (the tip of the contact projection 6 is the tip). The distance to the wall portion 5d) are set so as to have the same size and width dimensions dimension X2.

  Therefore, coupled with the fact that the contact protrusion 6 is always in contact with the wall surface 3b of the peripheral wall edge 3a of the mounting opening 3, the tip wall portion located on the tip side of the engagement claw portion 5c in the connecting piece portion 5b. In the case of the width dimension X1 that minimizes the gap dimension formed between 5d and the wall surface 3b of the peripheral wall edge 3a of the mounting opening 3, as shown in FIG. 8, the engaging claw part 5c is a two-dot chain line. The engagement wrap margin Z to the peripheral wall edge 3a of the mounting opening 3 is secured by a predetermined dimension while being largely elastically deformed from the position of the intended shape shown to the center side of the mounting opening 3 as shown by the solid line. Become.

  Conversely, in the case of the width dimension X2 in which the gap dimension generated between the distal end wall part 5d existing on the distal end side of the engaging claw part 5c in the connecting piece part 5b and the wall surface 3b of the peripheral wall edge part 3a of the mounting opening 3 is the maximum. As shown in FIG. 9, the abutment protrusion 6 abuts against the wall surface 3 b of the peripheral wall edge 3 a of the attachment opening 3, but the engagement claw portion 5 c is at the center portion side of the attachment opening 3 in the minimum range. As a result, the engagement lap allowance Z to the peripheral wall edge 3a of the mounting opening 3 is secured by a predetermined dimension.

  In the above-described embodiment, the contact protrusion 6 is formed on the tip wall portion 5d to form the contact relationship with the wall surface 3b. However, the tip wall portion 5d itself is built up to form the wall surface 3b. A contact relationship may be formed. In this case, the built-up portion on the tip wall portion 5d constitutes the abutting projection portion 6.

  As described above, according to the present invention, on the wall surface side of the peripheral wall edge portion, the wall surface of the peripheral wall edge portion of the mounting opening is always in contact with the distal end wall portion existing on the distal end side from the engagement claw portion in the connecting piece portion. Forming a projecting abutment projection, the projecting dimension of the abutment projection from the tip wall is approximately the same as the maximum gap dimension caused by the mounting error between the tip wall and the wall of the peripheral wall edge of the mounting opening. Because of the variation in the formation position of the attachment opening of the attachment site and the formation position of the engaging claw part of the attachment part caused by manufacturing errors or the attachment position of the attachment part with other attachment parts, etc. Even if there is a dimensional variation between the tip wall part located on the tip side of the engaging claw part of the engaging piece body and the wall surface of the peripheral wall edge part of the mounting opening, the peripheral wall edge part of the mounting opening always in the engaging claw part Engagement lap cost to In order to secure a predetermined amount, the engaging part of the engaging piece formed on the mounting part is overlapped with the peripheral edge of the peripheral wall of the mounting opening formed at the attachment site, and the mounting part is It is suitable for a mounting structure of a mounting part for an automobile that is mounted on a mounting site.

It is the perspective view which divided | segmented and drawn the armrest in the door trim which is an attachment site | part which employ | adopted embodiment which concerns on this invention, and the escutcheon which is an attachment component attached to the said armrest. It is the perspective view which expanded and drawn the latching piece body periphery in the excursion shown in FIG. It is AA sectional drawing in FIG. It is AA sectional drawing in FIG. 2 which drawn the state just before attaching an escutcheon to the armrest in FIG. Similarly, it is AA sectional drawing in FIG. 2 which drew the halfway process which attaches an escutcheon to the armrest in FIG. Similarly, it is AA sectional drawing of FIG. 2 which drew the state which attached the escutcheon to the armrest in FIG. Similarly, it is explanatory drawing for setting the height dimension of the contact protrusion part in an escutcheon, and the engagement wrap margin of a latching claw part. Similarly, when the position where the mounting opening of the earrest is formed or the position where the engaging claw part of the escutcheon is formed is caused by a manufacturing error, or the variation where the mounting position of the escutcheon is related to other mounting parts is the maximum width It is a figure for demonstrating the engagement wrap margin of the engagement nail | claw part with respect to the attachment opening in. Similarly, when the formation position of the mounting opening of the earrest and the formation position of the engagement claw portion of the escutcheon are caused by manufacturing errors or the variation of the attachment position of the escutcheon in relation to other mounting parts is the minimum width It is a figure for demonstrating the engagement wrap margin of the engagement nail | claw part with respect to an attachment opening. It is the perspective view which expanded and drawn the latching piece body periphery in the esci- sion in a prior art. Similarly, it is BB sectional drawing in Drawing 10 which drew the state just before attaching an escutcheon to an armrest. Similarly, when the position where the mounting opening of the earrest is formed or the position where the engaging claw part of the escutcheon is formed is caused by a manufacturing error, or the variation where the mounting position of the escutcheon is related to other mounting parts is the maximum width It is a figure for demonstrating the engagement wrap margin of the engagement nail | claw part with respect to the attachment opening in. Similarly, when the formation position of the mounting opening of the earrest and the formation position of the engagement claw portion of the escutcheon are caused by manufacturing errors or the variation of the attachment position of the escutcheon in relation to other mounting parts is the minimum width It is a figure for demonstrating the engagement wrap margin of the engagement nail | claw part with respect to an attachment opening.

Explanation of symbols

2 Armrest (Mounted parts)
3 Mounting opening 4 Escussion (Mounting parts)
5 engaging piece 5a leg piece 5b connecting piece 5c engaging claw 5d tip wall 6 abutting protrusion Z engaging allowance

Claims (1)

Mounting for automobiles in which the mounting part is mounted on the mounted part by engaging the engaging claw part of the engaging piece formed on the mounting part with the peripheral wall edge of the mounting opening formed on the mounted part. In the component mounting structure, the engagement piece body includes a pair of leg pieces standing in a state of being separated from the attachment component side, and a connecting piece for connecting the tips of the both leg pieces. In addition, the engaging claw portion is formed on the connecting piece portion, and the wall surface of the peripheral wall edge portion of the mounting opening is always on the distal end wall portion on the distal end side of the engaging claw portion in the connecting piece portion. An abutting protrusion that protrudes toward the wall surface side of the peripheral wall edge is formed so as to abut, and the protrusion dimension of the corresponding protrusion from the front wall is determined by the peripheral wall edge of the front wall and the mounting opening. Maximum gap caused by mounting error with the wall Automotive attachment of the mounting structure, characterized in that set substantially equal dimensions modulo.

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