JPH022004B2 - - Google Patents

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Field of Application) The present invention is a method for attaching synthetic resin parts such as an automobile locking plate, garnish, or decorative molding to a mounting member such as an automobile body. This invention relates to a mounting device for synthetic resin parts.

(Prior art) For example, a scuff plate shown in Japanese Utility Model Application No. 58-142162 and an automobile interior trimming plate shown in Japanese Utility Model Application No. 60-75708; When attaching a long and thin plate-shaped part made of synthetic resin such as an automobile garnish shown in Publication No. 58-164842 and Publication of Utility Model Application No. 60-3177 to a plate-shaped mounting member such as an automobile body, conventionally , as shown in FIG. 7, a plurality of oval recesses 2 are formed along the length of the part 1 at intervals in the length direction of the part 1, such as a kicking plate or garnishing plate. At the same time, an oval hole 3 is inserted into each recess 2 in the same manner as the recess 2.
The oval recesses 2 and holes 3 are formed along the length direction (the drawing is a cross-sectional view of the component 1 in the width direction, and the cross sections of the oval recesses 2 and holes 3 are also in the width direction). ) The part 1 can be screwed onto a mounting member 5 such as a vehicle body using a specially shaped tapping screw 4 that engages movably in the length direction, or as shown in FIG. 5, a plurality of rectangular holes 6 are formed along the length direction of the component 1 at intervals in the length direction of the component 1, and a screw member 7 is inserted into each rectangular hole 6.
is attached movably in the length direction of the part 1 (left and right direction in A), and the part 1 is screwed onto each screwing member 7 using the countersunk screw 8.
As shown in the figure, the component 1 is provided with a plurality of integral or separate elastic clips 9, 10 at intervals in the length direction of the component 1, and a mounting member 5.
8, a plurality of rectangular holes 6 are formed along the length of the component 1 at intervals in the length direction of the component 1, and each hole 6 (the drawing shows a plurality of rectangular holes 6) (In the cross-sectional view of the hole 6 in the width direction, the cross section of the hole 6 is also in the width direction.) Each elastic clip 9, 10 is fitted into the part 1 so as to be movable in the length direction.

Note that the recess 2 and hole 3 may be made oval, or the hole 6 may be made oval.
The reason for making it rectangular is due to the elongated part 1 due to temperature changes.
This is to absorb the expansion and contraction in the length direction.

(Problems to be solved by the invention) However, with the mounting structure shown in FIG.
There is a problem that a tapping screw 4 of a special shape is required, and in addition, dirt etc. tend to adhere between the head of the tapping screw 4 and the recess 2. These problems are solved as shown in FIGS. This problem can be solved with the mounting structure shown, but in the case of the structure shown in FIGS.
With the type that is difficult to remove, it is troublesome to install it in the hole 6.Moreover, the structure shown in FIG. , elastic clip 9,1
With the type that makes it difficult to remove the part 1, the elastic clips 9 and 10 are likely to be damaged when removing the part 1 from the mounting member 5, making it impossible to reinstall the removed part 1, and requiring a new part 1. be.

The present invention has been made in view of the above points, and it is possible to easily and reliably attach and detach parts such as a kicking plate, garnish, or decorative molding to and from a mounting member of a vehicle body, etc., without increasing the number of parts. The purpose is to do so.

[Structure of the invention]

(Means for Solving the Problems) The synthetic resin component mounting device of the present invention uses a synthetic resin component body 11 made of a synthetic resin material that is not mutually compatible with the synthetic resin material of the component body 11 and has a low melting point. The component body 11 is integrally and rotatably molded using the component body 11 as a part of a molding die, and the component body 11 is inserted into the insertion hole 32 of the mounting member 31 by the connecting member 12. The component body 11 has a circular recess 13 on its surface.
It also has a small-diameter shaft hole 14 penetrating from the center of the bottom of this recess 13 to the back surface, and a space located on the side of this shaft hole 14 and fitted into the insertion hole 32 of the mounting member 31 on the back surface. The connecting member 12 includes a disc-shaped head 15 rotatably formed in a recess 13 on the surface of the component body 11 and a shaft hole 14 of the component body 11. A cylindrical shaft portion 16 is rotatably formed on the side of the gap forming portion 19 on the back surface of the component body 11, and a cylindrical shaft portion 16 is formed on the side of the tip of the shaft portion 16 located on the gap forming portion 19. The leg portion 17 is integrally provided with a molded leg portion 17, and when the head portion 15 is rotated, the leg portion 17 is rotated via the shaft portion 16, and this leg portion 17 forms the gap forming portion of the component body 11. 19 and faces the back surface of the component body 11 at a predetermined distance.

(Function) The synthetic resin component mounting device of the present invention has a leg portion 17 of a connecting member 12 integrally formed with a component body 11.
is inserted into the back surface of the mounting member 31 through the insertion hole 32 of the mounting member 31 in a state where it overlaps the gap forming portion 19 of the component body 11, and the leg portion 17 is inserted through the head 15 of the connecting member 12. By rotating the leg portion 17, the leg portion 17 is engaged with the back surface of the mounting member 31, and the component body 11 is attached to the mounting member 31.

(Embodiment) An embodiment of the synthetic resin component mounting apparatus of the present invention will be described with reference to FIGS. 1 to 5.

In FIGS. 1 to 4, reference numeral 11 denotes a long and thin plate-shaped part made of synthetic resin, such as a car locking plate, garnish, or decorative molding. A plurality of connecting members 12 made of synthetic resin are integrally and rotatably molded at predetermined intervals in the L direction (in the drawing).

A circular recess 13 is formed on the surface of the component body 11 in correspondence with each connecting member 12, and a small diameter shaft hole 14 penetrates from the center of the bottom of the recess 13 to the back surface of the component body 11. Furthermore, on the back side of this component body 11,
A pair of spacing forming portions 1 for each shaft hole 14
9 sandwich the shaft hole 14, and the component body 11
It protrudes along the length direction (L direction in the drawing).

The connecting member 12 includes a disk-shaped head 15 rotatably fitted into a circular recess 13 on the surface of the component body 11, and a pair of shaft holes 14 on the back surface of the component body 11. A cylindrical shaft portion 16 rotatably penetrating between the space forming portions 19 is integrally formed, and a pair of space forming portions 19 of the component body 11 are provided on both sides of the tip of the shaft portion 16. A pair of overlapping legs 17 are integrally protruded on top of the head 15, and the surface of the head 15 has a linear groove 18, which is the same as the legs 17, and serves as a rotating operation section that engages with a flathead screwdriver or the like. It is formed in the direction.

When the connecting member 12 is rotated by engaging a flathead screwdriver or the like in the linear groove 18, the shaft portion 1
6, the leg portions 17 rotate together, and as a result, the leg portions 17 that are superimposed on the gap forming portion 19 of the component body 11 are removed from above the gap forming portion 19, and the legs The part 17 is attached to the component body 1 at a predetermined interval.
The leg portions 17 facing the back surface of the component body 1 and further facing the back surface of the component body 11 at a predetermined distance are superposed on the space forming portion 19.

Note that the height of the gap forming portion 19 of the component body 11 is made to correspond to the thickness of the mounting member 31 to which the component body 11 is attached, and thereby the distance between the leg portion 17 of the connecting member 12 and the back surface of the component body 11 is adjusted. Attachment member 31
The thickness should be adjusted accordingly.

Here, the formation of the connecting member 12 will be explained.

First, the component body 11 is molded first, and when molding the component body 11, a plurality of Concave portion 13 and shaft hole 14 at the location
At the same time, a pair of gap forming portions 19 for the pair of legs 17 are integrally formed on the bottom back side of each recess 13 in the longitudinal direction of the component body 11.

Then, as shown in FIG. 5, this part body 1
1 is attached to molds 21 and 22, and injection molding of the connecting member 12 is performed using the component body 11 as a part of the mold.

At this time, between the molds 21, 22 and the component body 11, the head 15 of the connecting member 12 and the shaft 1
6 and a pair of legs 17 are formed, and in this space 23, the part body 1 is molded.
The connecting member 12 is integrally molded into the component body 11 by injecting a synthetic resin material that is incompatible with the first synthetic resin material and has a low melting point. Note that 24 is a protrusion that forms the linear groove 18.

The connecting member 12 molded in this way has a synthetic resin material that is not compatible with the synthetic resin material of the component body 11, that is, it does not have the property of melting into each other.
Since the synthetic resin material of the component body 11 can be molded at a temperature that does not melt or deform, the connecting member 12 can be molded with respect to the component body 11 due to their mutual shapes.
can rotate around the shaft portion 16.

Therefore, as shown in FIG.
1 is attached to the mounting member 31 of the car body or the like,
Each connecting member 12 formed in a pair on the component body 11
The rectangular insertion holes 32 corresponding to the pair of legs 17 and the respective spacing forming portions 19 of the component body 11 are inserted into the component body 11 at predetermined intervals in the length direction (L direction in the figure) of the component body 11. Formed in the length direction,
Each leg portion 17 of each connection member 12 is inserted into each insertion hole 32.
Insert the space forming portions 19 of the component body 11 so that they are overlapped with each other, insert the leg portions 17 into the back side of the mounting member 31, and use a flathead screwdriver or the like to connect each connection as shown in FIG. When each connecting member 12 is rotated 90 degrees by engaging with the linear groove 18 in the head of the member 12, the pair of legs 17 of each connecting member 12 is rotated in the width direction of the component body 11, as shown in FIG. (direction S in the figure), and the legs 17 are located on both sides of the insertion hole 32 and engage with the back surface of the mounting member 31, so that the component body 11 is attached to the mounting member 31 via each connecting member 12. Can be installed.

Also, from the state shown in FIG. 4, each connecting member 12
When rotated by 90 degrees, the pair of legs 17 of each connecting member 12 moves in the length direction (L direction in the figure) of the component body 11.
Since the leg portions 17 are aligned with the space forming portions 19 of the component body 11, the legs 17 are
At the same time, it can be pulled out from each insertion hole 32 of the mounting member 31, and the component main body 11 can be removed from the mounting member 31 as in the state shown in FIG.

Then, each rectangular insertion hole 32 of the mounting member 31
By making the length longer than the length of each gap forming part 19 of the component body 11 corresponding to the pair of legs 17 of each connecting member 12, the length of the elongated component body 11 due to temperature changes can be Expansion and contraction can be absorbed, and by setting the dimensions of each part so that each leg 17 of the connecting member 12 elastically deforms downward in the state shown in FIG. 11 can be firmly attached to the attachment member 31.

The combination of synthetic resin materials for the component body 11 and the connecting member 12 is described in detail in Japanese Patent Publication No. 58-54022 or Japanese Patent Publication No. 59-48745, so a description thereof will be omitted here.

This concludes the explanation of this embodiment, but the present invention is not limited to the embodiment described above,
For example, the leg portion 17 of the connecting member 12 may be shaped as shown in FIG.

〔Effect of the invention〕

As described above, according to the present invention, in a connecting member that is integrally molded with the component body using the component body as a part of a mold for molding, by rotating the head, the connection member is formed through the shaft portion. The legs rotate together, and as a result of this rotation, the legs come out of the overlapping state on the gap forming part of the component body and face the back surface of the component body at a distance, so that the legs of the connecting member If the insertion hole to be fitted is formed in the mounting member, the leg portion overlapped with the gap forming portion of the component body can be inserted into the back side of the mounting member through the insertion hole of the mounting member. Then, by rotating the legs through the head of the connecting member, the legs can be engaged with the back surface of the mounting member, and the component body can be attached to the mounting member. When the component body is attached to the mounting member by the connecting member as shown in FIG. Since it can be superimposed on the gap forming part, the leg part can be pulled out from the insertion hole of the mounting member and the component body can be removed from the mounting member. There is no need to use other parts, and installation and removal can be done extremely easily and reliably.
On the surface side of the component body, there is no gap between the component body and the head of the connecting member, so there is no possibility of dust getting in and making it unsightly.Furthermore, since there is a gap forming part, it is easy to mold the connecting member. In this case, the gap for holding the mounting member on the leg can be easily formed without providing a mold dividing surface on the shaft part or using a slide piece, etc., and the mold does not become complicated. Moreover, since there is no burr on the shaft part, rotation becomes smooth.

[Brief explanation of drawings]

1 to 6 show an embodiment of the synthetic resin parts mounting device of the present invention, FIG. 1 is a partially sectional perspective view of the disassembled state, FIG. Fig. 3 is a plan view of the same, Fig. 4 is a perspective view of the attached state with a part of it in cross section, Fig. 5 is a vertical sectional view of the mold for explaining the molding of the connecting member, and Fig. 6 is a modification thereof. FIG. 2 is a longitudinal cross-sectional view of a connecting member showing an example;
FIGS. 7 to 10 are longitudinal cross-sectional views showing conventional attachment methods, respectively. 11... Part body, 12... Connection member, 13...
... recess, 14 ... shaft hole, 15 ... head, 16 ...
Shaft part, 17... Leg part, 19... Spacing forming part, 31
...Mounting member, 32...Insertion hole.

Claims (1)

[Scope of Claims] 1. A connection member made of a synthetic resin material that is incompatible with the synthetic resin material of the component body and has a low melting point is attached to a component body made of synthetic resin, and the component body is made into a part of a mold for molding. The connecting member is used to integrally and rotatably mold the component body, and the component body is attached to the insertion hole of the mounting member by the connecting member, and the component body has a circular recess on the surface and the recess has a small-diameter shaft hole penetrating from the center of the bottom to the back surface, and has a spacing forming part located on the side of the shaft hole and protruding from the back surface to fit into the insertion hole of the mounting member, The member includes a disc-shaped head rotatably molded in a recess on the surface of the component body, and a disc-shaped head rotatably molded in a side part of the gap forming part on the back surface of the component body from the shaft hole of the component body. The shaft is integrally formed with a cylindrical shaft and a leg positioned on the gap forming part and formed on the side of the tip of the shaft. The legs rotate through the
A synthetic resin component mounting device characterized in that the leg portions are removed from the overlapping state on the gap forming portion of the component body and face the back surface of the component body at a predetermined distance.