JP2021062792A - Component fixing structure of automobile interior component - Google Patents

Abstract

To provide a component fixing structure of an automobile interior components that is suitable for preventing defective fixing in integrally fixing three components constituting an automobile interior component and reducing the work man-hours required for the fixing.SOLUTION: In a component fixing structure F of an automobile interior component, a first component, second component and a third component are integrally fixed by being in a combination of: a state where a frame body 13 is inserted through a frame insertion portion 21B of an opening 21; a state where a first engaging claw 12 is hooked on and engaged with an engaging edge 21A of the opening 21; and a state where a second engaging claw 33 is engaged with a gap G between a tip of the first engaging claw 12 and the frame body 13 to be hooked on the frame body 13.SELECTED DRAWING: Figure 1

Description

The present invention relates to a structure for integrally fixing three parts constituting an interior part for an automobile, and is particularly suitable for preventing a fixing defect and reducing the work man-hours required for the fixing.

Conventionally, as an interior component for an automobile of this type, for example, a door trim attached to the inside of an automobile door panel is known. This type of door trim has a structure in which a skin material is attached to the surface of the resin core material, and the back surface of the door trim (specifically, the back surface of the resin core material) is a backing member or a box-shaped shock absorbing pad material. Etc. are attached and fixed.

By the way, for example, the structure for integrally fixing the door trim, the backing member, the shock absorbing pad material, and the other three parts constituting the interior parts for automobiles (hereinafter referred to as "part fixing structure") described above is, for example. It is disclosed in Patent Document 1.

In the component fixing structure disclosed in Patent Document 1, the first component (10), the second component (12), and the third component (14) are fixed by welding.

However, in the case of fixing by welding as in Patent Document 1, the position of an intermediate part such as the second part (12) may not be stable until the welding is completed, and the parts between the parts due to poor welding may not be stable. It is difficult to find a gap, and the presence of such a gap may make the fixing of the three parts unstable, resulting in improper fixing of the parts.

By the way, by fixing the first part and the second part by fitting the claw and the hole, and separately fixing the first part and the third part by fitting another claw and the hole. There is also a method of fixing the three parts integrally. However, according to this method, since the work of fitting the claws and the holes is performed at a plurality of places, there is a problem that the work man-hours required for fixing the three parts must be increased.

The reference numerals in parentheses are the reference numerals used in Patent Document 1.

Japanese Unexamined Patent Publication No. 2017-87817

The present invention has been made to solve the above problems, and an object of the present invention is to prevent improper fixing when three parts constituting an automobile interior part are integrally fixed, and to perform work required for the fixing. It is to provide a component fixing structure of an interior component for an automobile, which is suitable for reducing man-hours.

In order to achieve the above object, the present invention is used as a means for integrally fixing the first component, the second component, and the third component constituting the interior component for an automobile. In the structure, the first component includes a first support piece in a form of rising from one surface thereof, a first engaging claw supported by the first support piece, and the first support piece rising from the first surface. The second component has an engaging edge portion to which the first engaging claw is caught and engaged, and the frame body having a frame body forming a gap between the engaging claw and the tip portion of the first engaging claw. The third component has an opening provided with a frame body insertion portion through which the frame body is inserted, and the third component is formed from an insertion hole through which the first engaging claw and the frame body are inserted and a vicinity of an edge portion of the insertion hole. It has a second support piece in a raised form and a second engaging claw supported by the second support piece, and the frame is inserted into the frame insertion portion of the opening. The state, the state in which the first engaging claw is caught and engaged with the engaging edge portion of the opening, and the second in the gap between the tip portion of the first engaging claw and the frame body. The first, second, and third parts are integrally fixed by the engaging claws of the above being engaged and hooked on the frame body.

In the present invention, the frame body is provided with ribs, and the ribs abut on the inside of the opening, so that the second component is positioned with respect to the first component. It may be characterized by that.

In the present invention, a recess is provided on the tip surface of the second engaging claw, and the recess is a jig for disengaging the engagement between the second engaging claw and the frame. It may be characterized in that it functions as a recess for disengagement into which the tool is inserted.

In the present invention, in a state where the engagement between the second engaging claw and the frame body is released, the gap between the tip end portion of the first engaging claw and the frame body is formed. It may be characterized in that it functions as an engagement disengagement gap into which a jig for disengaging the engagement between the first engagement claw and the engagement edge portion of the opening is inserted.

In the present invention, as a specific component fixing structure for interior parts for automobiles, specifically, a structure for integrally fixing the first to third parts, the frame body is inserted into the frame body insertion portion of the opening as described above. The inserted state, the state in which the first engaging claw is caught and engaged with the engaging edge of the opening, and the second engagement in the gap between the tip of the first engaging claw and the frame body. A configuration in which the first, second, and third parts are integrally fixed by engaging the joint claws and being hooked on the frame, that is, a structure in which the three parts are fixed by the two engaging claws. Adopted. Therefore, since the three parts are fixed by the engaging claws, the problem in the conventional fixing structure of the three parts due to welding, that is, the fixing of the three parts is not unstable, and the fixing failure of the three parts is prevented. It is possible to provide a component fixing structure for an automobile interior component suitable for the above.

Further, according to the present invention, as described above, the second engaging claw is engaged with the gap between the tip of the first engaging claw and the frame body and is caught in the frame body. That is, since the first engaging claw and the second engaging claw are arranged side by side in series, the fixing points of the three parts are put together in one place, and two in one operation. It is also possible to provide a component fixing structure for an automobile interior component, which is suitable for reducing the work manpower required for fixing the three components in that the engaging claws can be engaged with the corresponding engaging partners.

FIG. 3 is a cross-sectional view of a component fixing structure of an interior component for an automobile to which the present invention is applied. FIG. 3 is a cross-sectional view of a state in which the first component and the second component are assembled in the component fixing structure of FIG. 3 (a) is a front view of the first component adopted in the component fixing structure of FIG. 1, FIG. 3 (b) is a back view thereof, and FIG. 3 (c) is a sectional view taken along the line A of FIG. 1 (a). .. FIG. 4A is a plan view of the second component adopted in the component fixing structure of FIG. 1, and FIG. 4B is a cross-sectional view taken along the line B of FIG. 1A. 5 (a) is a plan view of the third component adopted in the component fixing structure of FIG. 1, and FIG. 5 (b) is a cross-sectional view taken along the line C of FIG. 1 (a).

Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the attached drawings.

FIG. 1 is a cross-sectional view of a component fixing structure of an automobile interior part to which the present invention is applied, and FIG. 2 is a cross-sectional view of a state in which the first component and the second component are assembled in the component fixing structure of FIG. a) is a front view of the first component adopted in the component fixing structure of FIG. 1, FIG. 3 (b) is a back view thereof, FIG. 3 (c) is a sectional view taken along the line A of FIG. (A) is a plan view of the second component adopted in the component fixing structure of FIG. 1, FIG. 4 (b) is a cross-sectional view taken along the line B of FIG. 1 (a), and FIG. 5 (a) is component fixing of FIG. A plan view of the third component adopted in the structure, FIG. 5 (b) is a cross-sectional view taken along the line C of FIG. 5 (a).

The component fixing structure F of the interior parts for automobiles shown in FIG. 1 (hereinafter referred to as “part fixing structure F in FIG. 1”) integrally fixes the first component 1, the second component 2, and the third component 3. It is used as a means to do so.

<< Specific examples of the first to third parts >>
As the first component 1, for example, a known automobile door trim or luggage side trim composed of a resin core material formed in a required shape and a skin material attached to the surface thereof can be considered, but is limited thereto. Will not be done.

The second component 2 may be, for example, a backing member attached to the back surface of the door trim described above, but is not limited thereto.

As the third component 3, for example, a box-shaped shock absorbing pad material attached to the back surface of the door trim described above can be considered, but the third component 3 is not limited thereto.

<< Details of the first part 1 >>
With reference to FIGS. 3 (a) to 3 (c), the first component 1 of FIG. 1 is a first support piece 11 in a form of rising from any one of both sides of the component, and a first support piece 11. It has a first engaging claw 12 supported by the above, and a frame body 13 that rises from the one surface and forms a gap G between the tip end portion of the first engaging claw 12.

As a specific configuration example of the frame body 13, in the component fixing structure F of FIG. 1, as shown in FIGS. 3 (a) and 3 (b), an arch-shaped or gate-shaped frame body exceeding the first engaging claw 12 Although 13 is adopted, it is not limited to this. As the frame body 13 of this type, a frame body having a shape other than an arch or a gate may be adopted.

The rib 14 is provided on the frame body 13. As shown in FIGS. 3A to 3C, a pair of ribs 14 are provided on the front-rear surface and both side surfaces of the frame body 13 as relative positioning means of the second component 2 with respect to the first component 1. It is provided one by one. The shape and number of ribs 14 of this type can be appropriately changed as needed.

<< Details of the second part 2 >>
With reference to FIGS. 4 (a) and 4 (b), the second component 2 of FIG. 1 is a frame body insertion through which the frame body 13 is inserted into the engaging edge portion 21A to which the first engaging claw 12 is caught and engaged. It has an opening 21 with a portion 21B. As a specific configuration example of such an opening 21, in the component fixing structure F of FIG. 1, the planar shape of the opening 21 is rectangular, and one side of the rectangle is adopted as the engaging edge 21A. It is not limited to.

<< Details of the third part 3 >>
Referring to FIGS. 5A and 5B, the third component 3 of FIG. 1 includes an insertion hole 31 through which the first engaging claw 12 and the frame body 13 described above are inserted, and an edge of the insertion hole 31. It has a second support piece 32 that rises from the vicinity of the portion, and a second engaging claw 33 that is supported by the second support piece 32.

In the examples of FIGS. 1 and 5 (a) and 5 (b), the outer edge 3A of the third component 3 is in a form of partially projecting in a tab shape, and an insertion hole 31 is provided in the projecting tab portion 3B. It is provided, the distance width from the outer edge of the tab portion 3B to the insertion hole 31 is short, and the second engaging claw 33 is provided in the portion having such a short distance width via the second support piece 32. It has a structure provided with. From this, when a force is applied to the second engaging claw 33, the base portion of the second engaging claw 33 (specifically, near the root of the second support piece 32) is relatively large and easily bends. It is assumed that the bending causes damage to the base portion of the second engaging claw 33. Therefore, in the third component 3 of FIGS. 1 and 5 (a) and 5 (b), the third component 3 is inserted by providing the flange portion 35 at least near the outer edge of the tab portion 3B of the outer edge 2A. The mechanical strength near the hole 31 is increased. Although not shown, such a flange portion 35 may be used in the first component 1 or the second component 2.

<< Explanation of the fixed state of the first to third parts 1, 2, and 3 >>
Referring to FIG. 1, a state in which the frame body 13 is inserted into the frame body insertion portion 21B of the opening 21, a state in which the first engaging claw 12 is caught and engaged with the engaging edge portion 21A of the opening 21, and a state in which the frame body 13 is engaged. The second engaging claw 33 is engaged with the gap G between the tip of the first engaging claw 12 and the frame body 13, and is caught in the frame body 13. , The second and third parts are fixed integrally.

Further, in the component fixing structure F of FIG. 1, the rib 14 of the frame body 13 abuts on the inside of the opening 21, so that the second component 2 is positioned with respect to the first component 1. There is.

<< Explanation of the work of fixing the first to third parts 1, 2, and 3 >>
In the work of fixing the first to third parts 1, 2, and 3, the second part 2 is first fixed to the first part 1, and then the third part 2 is fixed to the fixed structure. Fix the part 3 of.

To fix the second component 2 to the first component 1, first, the upper frame portion of the frame body 13 and the frame body insertion portion 21B of the opening 21 are opposed to each other, and the frame body 13 is inside the frame body insertion portion 21B. To be plugged in. Then, when the engaging edge portion 21A of the opening 21 and the first engaging claw 12 come into contact with each other, the engaging edge portion 21A is pushed in the direction of the first engaging claw 12 with a predetermined force. To do.

As a result, the first support piece 11 bends due to elastic deformation. Then, when the engaging edge portion 21A of the opening 21 exceeds the first engaging claw 12, the first support piece 11 returns to its original state due to its elastic return and is caught and engaged with the frame body 13. become. In this state, the work of fixing the second part 2 to the first part 1 is completed.

In fixing the third component 3 to the fixed structure composed of the first component 1 and the second component 2 as described above, the upper end portion of the frame body 13 and the insertion hole 31 are opposed to each other, and the insertion hole 31 is fixed. The frame body 13 is inserted inside. Then, when the upper frame portion of the frame body 13 and the second engaging claw 33 come into contact with each other, the frame body 13 is pushed in the direction of the second engaging claw 33 with a predetermined force.

As a result, the second support piece 32 is bent by elastic deformation, and the second engaging claw 33 is in a state of being submerged under the upper frame portion of the frame body 13 and the tip portion of the first engaging claw 12. It is in a state of being engaged with the gap G between the frame body 13 and the frame body 13 and being caught by the frame body 13. In this state, the fixing of the third component 3 to the fixed structure (fixed first component 1 and second component 2) is completed.

By the way, in a state where the fixing work of the second component 2 to the first component 1 as described above is completed, the rib 14 of the frame body 13 comes into contact with the inside of the opening 21 to the first component 1. Since the second component 2 is positioned, the second component 2 does not wobble in the next operation such as the fixing operation of the third component 3, and the assembly workability of the component is good.

<< Explanation of how to release the fixing of the first to third parts 1, 2, and 3 >>
As shown in FIGS. 5A and 5B, a recess 34 is provided on the tip surface of the second engaging claw 33. The recess 34 functions as a recess for disengagement into which a jig (for example, a flat-blade screwdriver) for disengaging the second engaging claw 33 and the frame body 13 described above is inserted.

When a flat-blade screwdriver is used to disengage the second engaging claw 33 from the frame body 13, the tip of the flat-blade screwdriver is inserted into the recess 34. Then, when the driver base portion after the tip portion of the flat-blade screwdriver is brought into contact with the upper frame portion of the frame body 13 and the flat-blade screwdriver is rotationally moved with the contact portion as a fulcrum, the second engaging claw 33 is formed. The engagement between the frame body 13 and the frame body 13 is easily disengaged by the principle of leverage.

Further, in a state where the engagement between the second engaging claw 33 and the frame body 13 is released, the gap G between the tip portion of the first engaging claw 12 and the frame body 13 (see FIG. 2). ) Functions as an engagement disengagement gap into which a jig (for example, a flat-blade screwdriver) for disengaging the engagement between the first engagement claw 12 and the engagement edge 21A of the opening 21 described above is inserted. To do.

When a flat-blade screwdriver is used to disengage the first engaging claw 12 from the engaging edge 21A of the opening 21, the tip of the flat-blade screwdriver is inserted into the gap G. Then, when the driver base portion beyond the tip portion of the flat-blade screwdriver is brought into contact with the upper frame portion of the frame body 13 and the flat-blade screwdriver is rotationally moved with the contact portion as a fulcrum, the first engaging claw 12 is used. The engagement between the opening 21 and the engaging edge 21A of the opening 21 is easily released by the principle of leverage.

In the component fixing structure F of the present embodiment described above, as described above, the frame body 13 is the frame body of the opening 21 as a structure for integrally fixing the first to third components 1, 2, and 3. A state in which the first engaging claw 12 is caught and engaged with the engaging edge portion 21A of the opening 21, and a state in which the tip portion of the first engaging claw 12 and the frame body 13 are inserted into the insertion portion 21B. The first to third parts 1, 2, and 3 are integrally fixed by the second engaging claw 33 being engaged with the gap G between the two and being hooked on the frame body 13. A configuration, that is, a fixed structure of three parts by two engaging claws 12 and 33 was adopted. Therefore, since the three parts 1, 2, and 3 are fixed by the engaging claws 12, 33, there is no problem in the conventional fixing structure of the three parts by welding, that is, the fixing of the three parts does not become unstable. 3 It is possible to effectively prevent improper fixing of parts.

Further, according to the component fixing structure F of the present embodiment, as described above, the second engaging claw 33 engages with the gap G between the tip portion of the first engaging claw 12 and the frame body 13. Since it is in a state of being hooked on the frame body 13, that is, a state in which the first engaging claw 12 and the second engaging claw 33 are arranged side by side in series, the three parts 1, 2 3 parts 1, 2 and 3 in that the fixing points of 3 are grouped together in one place and the two engaging claws 12 and 33 can be engaged with the corresponding engaging partners in one operation. It is also possible to reduce the work manpower required for fixing.

Further, in the conventional structure in which the three parts are integrally fixed by welding, for example, when the three parts integrated in this way are disassembled and recycled, it takes a lot of man-hours to remove the welded part. On the other hand, in the component fixing structure F of the present embodiment, three components (first, second, third components 1, 2, Since it can be easily disassembled in 3) and does not require time-consuming removal work of the welded portion, recycling by disassembling the interior parts for automobiles becomes easy.

The present invention is not limited to the embodiments described above, and more modifications can be made by a person having ordinary knowledge in the art within the technical idea of the present invention.

1 First part 11 First support piece 12 First engaging claw 13 Frame 14 Rib 2 Second part 21 Opening 21A Engaging edge 21B Frame insertion part 3 Third part 3A Third Outer edge of part 3B Tab part 31 Insertion hole 32 Second support piece 33 Second engaging claw 34 Recessed 35 Reinforcing flange G Gap between the tip of the first engaging claw and the frame F Interior parts for automobiles Parts fixing structure

Claims (4)

In the component fixing structure of an automobile interior part, which is used as a means for integrally fixing the first part, the second part, and the third part constituting the automobile interior part.
The first component includes a first support piece in a form rising from one surface thereof, a first engaging claw supported by the first support piece, and the first engaging claw rising from the one surface. It has a frame that forms a gap with the tip of the nail,
The second part has an opening having an engaging edge portion on which the first engaging claw is hooked and engaged, and a frame body insertion portion through which the frame body is inserted.
The third component includes an insertion hole through which the first engaging claw and the frame body are inserted, a second support piece in a form rising from the vicinity of the edge of the insertion hole, and the second support piece. With a second engaging claw, supported by,
A state in which the frame body is inserted into the frame body insertion portion of the opening, a state in which the first engaging claw is caught and engaged with the engaging edge portion of the opening, and the first engagement. The second engaging claw is engaged with the gap between the tip of the claw and the frame body and is caught in the frame body, whereby the first, second and third A component fixing structure for interior parts for automobiles, characterized in that the components are fixed integrally. The frame is provided with ribs, and the ribs abut on the inside of the opening, so that the second component is positioned with respect to the first component. The component fixing structure for an interior component for an automobile according to claim 1. A recess is provided on the tip surface of the second engaging claw.
The automobile use according to claim 1, wherein the recess functions as a recess for disengagement into which a jig for disengaging the second engaging claw and the frame body is inserted. Parts fixing structure for interior parts. In a state where the engagement between the second engaging claw and the frame is released, the gap between the tip of the first engaging claw and the frame is the first engagement. The component of an automobile interior part according to claim 1, wherein a jig for disengaging the engaging claw and the engaging edge portion of the opening functions as an disengaging gap into which a jig is inserted. Fixed structure.

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