JPH034764B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a two-object mounting structure that allows a mounting member to be easily mounted to a member to be mounted. A mounting means is formed that includes an engagement protrusion having a wide head and a guide protrusion located near the engagement protrusion,
From the viewpoint of design and manufacturing, one attachment hole is formed in the member to be attached, corresponding to one attachment means,
When the attachment means is inserted into the locking hole, the head of the locking protrusion is bent in a direction perpendicular to the width direction and then returned to be fixed to the exit side periphery of the locking hole in the insertion direction of the locking protrusion. The present invention relates to a two-object attachment structure for attaching an attachment member to an attached member.

(Prior art) Conventionally, this type of mounting structure was
There was one in which the air supply grill (mounting member) 1 was attached to the instrument panel (mounted member) 5, as shown in Figures 10 to 12, which is also shown in Publication No. 47064 (Japanese Patent Application No. 52-113821). .

The air supply grill (hereinafter referred to as grill) 1 includes an engaging protrusion 3 having a head portion 3a wider than the neck portion 3b at its tip, and an engaging protrusion 3 located near the engaging protrusion 3 in the width direction and orthogonal direction. Guide protrusion 4 having approximately the same height as landing protrusion 3
A mounting means 2 is formed on the instrument panel (hereinafter referred to as the instrument panel) 5, and a head 3 of the engaging protrusion 3 is formed in correspondence with the mounting means 2.
One H-shaped fastening hole 6 consisting of a wide part 7 that is approximately the same width as the neck part a, a narrow part 8 that is approximately the same as the width of the neck part 3b, and an insertion part 9 through which the guide protrusion 4 can be inserted. was formed.

When inserting the attachment means 2 into the locking hole 6, the guide protrusion 4 is inserted into the insertion part 9, and the head 3a of the locking protrusion 3 is inserted into the narrow part 8, and the insertion direction entrance side The curved guide portion 11 formed on the periphery of the narrow portion 8 of the
is bent in a direction perpendicular to the width direction to project from the wide part 7, and then the elastic deformation is returned to the original state to position the neck part 3b of the engaging protrusion in the narrow part 8, and the head part 3a of the engaging protrusion is to the periphery of the narrow part 8, and then attach the grille 1.
was installed on instrument panel 5.

(Problem to be Solved by the Invention) However, when removing the grille 1 from the instrument panel 5, the engagement protrusion 3 of the attachment means 2 is bent from the narrow part 8 of the engagement hole 6 to the wide part 7 and pulled out. However, in the conventional mounting structure, the guide protrusion 4 is positioned at approximately the same height as the engagement protrusion 3 in a direction orthogonal to the width direction of the engagement protrusion head 3a, that is, in the bending direction of the engagement protrusion 3. Therefore, when removing the grille 1 by bending the engagement protrusion 3, the guide protrusion 4 becomes an obstacle.
Furthermore, the portion from which the locking protrusion 3 is normally protruded is located at a location on the back side of the product that is difficult to see, making the work even more time-consuming.

In order to facilitate removal, it is conceivable to form the guide protrusion 4 lower than the head 3a of the engagement protrusion 3 so as not to protrude from the insertion portion 9, but if formed in this way, When the attachment means 2 is inserted into the locking hole 6, the locking protrusion 3 is guided to the wide part 7 without bending, and the guide protrusion 4 comes into contact with the peripheries on both sides of the narrow part 8 in the locking hole 6. , it becomes impossible to insert the attachment means 2. Furthermore, here the guide protrusion 4
It is conceivable to make the width of the guide protrusion 4 and the insertion part 9 narrower than the narrow width part 8 so that the width of the guide protrusion 4 and the insertion part 9 do not come into contact with the peripheries on both sides of the narrow width part 8. Since the guide protrusion 4 becomes movable into the narrow portion 8, its insertion position is not restricted, and the engagement protrusion 3 cannot be bent. Therefore, when one attachment means 2 is inserted into one attachment hole 6 and engaged, if the guide protrusion 4 is arranged in the direction of deflection of the engagement protrusion 3, the guide protrusion 4 can be The guide protrusion 4 and the insertion portion 9 had to be formed at substantially the same height as the engaging protrusion 3, and the width of the guide protrusion 4 and the insertion portion 9 had to be wider than the narrow width portion 8.

(Means for Solving the Problems) In the present invention, the mounting member has a mounting means that includes an engaging protrusion having a head wider than the neck portion at the tip and a guide protrusion located near the engaging protrusion. The attachment means is inserted into one of the attachment holes in the member to be attached, and the head of the attachment protrusion is bent in a direction perpendicular to the width direction, and then returned to an exit in the insertion direction of the attachment hole. This is a two-object mounting structure in which a mounting member is attached to a member to be attached by being attached to the side periphery, and the height of the guide protrusion in the attachment means is lower than the head of the engagement protrusion. An inlet side opening with a predetermined depth corresponding to the attachment means and a removal opening having the width and thickness of the head of the attachment protrusion are arranged in the attachment hole in the insertion direction of the attachment means. On the exit side in the insertion direction of the mounting means, there is a wide part corresponding to the head of the engaging protrusion, and a narrow part corresponding to the neck of the engaging protrusion, which is connected to the wide part and communicates with the extension of the entrance side opening. a guide portion for deflecting the engagement protrusion toward the wide width portion is formed at the peripheral edge of the narrow portion of the outlet side opening in the circumferential wall of the attachment hole; The above-mentioned problems are solved by providing a removal hole for inserting a removal jig at a position facing the side surface of the means.

(Operations and Effects of the Invention) In the two-object mounting structure according to the present invention, the guide protrusion is lower than the head of the engagement protrusion and is disposed near the engagement protrusion in the width direction of the head of the engagement protrusion, while The fastening hole is connected to an inlet opening with a predetermined depth corresponding to the mounting means, a wide part corresponding to the head of the fastening protrusion, and this wide part is connected to an extension of the inlet opening for fastening. an exit side opening consisting of a narrow part corresponding to the protrusion neck;
Since the peripheral wall of the anchoring hole is provided with a guide portion for bending the anchoring protrusion toward the wide side at the narrow edge of the outlet side opening, when the attachment means is attached to the anchoring hole, the entrance opening The engagement protrusion and the guide protrusion are inserted, and while the guide protrusion is inserted to a predetermined depth, its position is regulated with respect to the direction of deflection of the engagement protrusion, and the guide part allows the engagement protrusion to The head is bent and protrudes into the wide part of the outlet side opening, and then the neck part fits into the narrow part and the bending returns, the head is locked at the periphery of the narrow part, and the mounting member is attached. Can be attached to parts.

On the other hand, when removing the mounting member, insert the removal jig through the removal hole, and while pushing the attachment protrusion head with the jig so as to move it from the narrow part to the wide part of the exit side opening. When the member is pulled, the engagement protrusion and the engagement hole are disengaged, and the attachment member is removed.

Therefore, in the mounting structure according to the present invention, the guide protrusion is arranged in the width direction of the engagement protrusion head, that is, in a direction perpendicular to the deflection direction of the engagement protrusion, and is formed lower than the engagement protrusion head. By using a jig inserted through the removal hole, the head of the locking protrusion can be pushed so as to protrude from the outlet side opening of the locking hole, so that the guide protrusion does not get in the way when removing it, unlike in the conventional case. This makes the removal work easier.

(Example) In the two-object mounting structure of the first embodiment, the air supply grill (hereinafter referred to as grille) 21 made of synthetic resin, which is the mounting member, is attached to the instrument panel made of synthetic resin (hereinafter referred to as grille), which is the attached member. Instrument panel)25
It is to be installed on.

Attachment means 22 are formed at two predetermined positions on the periphery of the grille 21 .

The attachment means 22 includes an engagement protrusion 23 having a head 23a whose tip is wider than the neck 23b, and an engagement protrusion head formed near both sides of the engagement protrusion 23 in the width direction of the engagement protrusion 23a. The guide protrusion 24 is lower in height than the guide protrusion 23a.

On the other hand, an attachment hole 26 into which the attachment means 22 of the grille 21 is inserted is formed at a predetermined position of the attachment frame 25a of the instrument panel 25.

The locking hole 26 has an entrance side opening 27 having a rectangular shape with a width and thickness corresponding to the shape of the attachment means 22 on the entrance side of the attachment means 22 in the insertion direction, and is connected to the entrance side opening 27. In consideration of the removal of the attachment means 22, a removal opening 28 is provided which has a short rectangular shape and has a width and thickness corresponding to the shape of the engaging protrusion head 23a. The depth of the entrance side opening 27 is set to the length into which the guide protrusion 24 is inserted when the mounting means 22 is attached.

Further, in the engagement hole 26, the engagement protrusion head 2 of the attachment means 22 is provided on the exit side in the insertion direction of the attachment means 22.
Wide portion 29a with a width and thickness corresponding to the shape of 3a
and an outlet side opening 2 consisting of a narrow portion 29b that is connected to the wide portion 29a on an extension of the entrance side opening 27 and has a width and thickness corresponding to the engaging protrusion neck portion 23b.
It has 9. Note that the wide portion 29a communicates with the removal opening 28 by having the same cross-sectional shape.

Further, on the circumferential edge of the narrow portion 29b of the outlet side opening 29 in the peripheral wall of the locking hole 26, a curved or sloped guide portion 31 is provided that bends the locking protrusion head 23a toward the wide portion 29a when the attachment means 22 is inserted. is formed.

Further, on the side of the attachment means 22 of the grille 21, an attachment head 2 is provided in consideration of removal after attachment of the grille 21.
Jig 32 that presses 3a to bend the engaging protrusion 23
A removal hole 21a is drilled to allow insertion of the removal hole 21a.

Next, a manner of attaching the grill 21 to the instrument panel 25 will be described.

First, the attachment means 22 of the grille 21 is arranged to correspond to the position of the engagement hole 26 in the instrument panel 25.

Thereafter, the grille 21 is pushed in so that the attachment means 22 can be inserted through the entrance side opening 27 of the engagement hole 26.

At this time, since the guide protrusion 24 is inserted while being positionally restricted to a predetermined depth, the engagement protrusion head 23a comes into contact with the guide part 31 within the engagement hole 26, and the wide part 29
It bends toward the a side, and only the engagement protrusion head 23a protrudes from the wide part 29a of the outlet side opening 29, and then, when the neck 23b comes to the outlet side opening 29,
The neck portion 23b is fitted into the narrow portion 29b, the bending of the engagement protrusion 23 is restored, the engagement protrusion head 23a is engaged with the periphery of the narrow portion 29b, and the grille 21
can be attached to the instrument panel 25.

In addition, in the first embodiment, the narrow portion 29 in the outlet side opening 29 where the locking protrusion head 23a is locked.
b In the locking surface 30 on the peripheral edge, the conventional locking surface 10
is surrounded on three sides by the space of the wide part 7, the narrow part 8, and the insertion part 9, whereas the area around the locking surface 30 is surrounded by the space in two directions, the wide part 29a and the narrow part 829b. Therefore, the strength of the locking surface 30 is improved.

In the first embodiment, the position of the attachment means 22 in the insertion direction into the locking hole 26 is restricted by the tip of the guide protrusion 24 hitting the bottom 27a on the extension of the entrance side opening 27 in the locking hole 26. Although this is done by making contact with the mounting frame 25a of the instrument panel 25, it is of course possible to configure a part of the peripheral edge of the grille 21 to make contact with the mounting frame 25a of the instrument panel 25.

When removing the grille 21, the jig 32 is inserted through the removal hole 21a of the grille 21, and the engaging protrusion head 23a is attached to the narrow part 29 of the outlet side opening 29.
b to move it to the wide part 29a,
The grille 21 can be easily removed from the instrument panel 25 by bending the engagement protrusion 23 and pulling the grille 21. At this time, since only the engaging protrusion head 23a of the attachment means 22 protrudes from the outlet side opening 29, the work can be easily performed even if the work is done on the back side of the product where it is difficult to see. can be done.

In the first embodiment, since the removal opening 28 communicating with the wide part 29a of the outlet side opening 29 is provided on the inlet side of the attachment hole 26 in the insertion direction of the attachment means 22, it is difficult to remove the attachment means 22 when the attachment means 22 is pulled out. , the engaging protrusion head 23a is not interfered with and is configured to be more easily pulled out. Of course, only the inlet side opening 27 is formed on the inlet side, and the outlet side opening 2 is formed from the inlet side opening 27.
It goes without saying that the wide portion 29a at 9 may be connected to the wide portion 29a in consideration of the bending shape of the engagement protrusion 23.

Further, in the engagement hole 26, the outlet side opening 29
Another wide portion 29a is formed on the opposite side of the narrow portion 29b, and the other wide portion 29a is formed on the opposite side of the narrow portion 29b.
9a to the entrance side in the insertion direction of the attachment means 22 in the attachment hole 26, and another removal opening 28 is formed on the opposite side of the entrance side opening 27, when removing the grille 21 from the instrument panel 25 after installation. Since it becomes possible to remove the engaging protrusion head 23a by moving it to either of the two wide portions 29a, the removal operation can be performed even more easily.

Furthermore, in the first embodiment, when the attachment means 22 is inserted into the attachment hole 26, the attachment protrusion 23 is inserted into the wide portion 26.
Although a curved or sloped guide portion 31 for bending toward the 9a side is shown as an example, it is of course possible to form the tip of the engaging protrusion head 23a into a tapered surface shape.

Further, in the first embodiment, two guide protrusions 24 are formed in the mounting means 22, but as in the second embodiment shown in FIG. A corresponding locking hole 46 may be provided to cope with this problem. Furthermore, as in the third embodiment shown in FIG. 9, the attachment means 52 may be formed as a separate body that can engage with the grille 21. Incidentally, the mounting means 52, which is separate from the grille 21 in which the guide protrusion 54 and the engagement protrusion 53 are arranged symmetrically in between, as in the third embodiment, allows the conventional attachment means 2 to be engaged with the grille 1. Attachment means 52
Even if the grille 21 is turned upside down, there is no problem in installing the grille 21, and the installation work can be facilitated.

[Brief explanation of drawings]

1 is a front perspective view of a grill and an instrument panel showing a first embodiment of the present invention, FIG. 2 is a rear perspective view of a grill and an instrument panel in the same embodiment, and FIG. 3 is a front perspective view of a grill and an instrument panel in the same embodiment. FIG. 4 is a rear perspective view showing a state in which the grill in the same embodiment is attached to the instrument panel;
FIG. 5 is a sectional view of the locking hole in the same embodiment, and FIG.
The figure is a perspective view showing the locking hole in the same embodiment.
The figures are a cross-sectional view of FIG. 5, FIG. 8 is a perspective view showing the second embodiment, FIG. 9 is a perspective view showing the third embodiment, and FIG. 10 is a perspective view showing a conventional grill and instrument panel. FIG. 11 is a cross-sectional view showing a conventional fastening hole, and FIG. 12 is a cross-sectional view showing a conventional grill attached to an instrument panel. 1, 21... (mounting member) grill, 2, 22, 4
2, 52... Attachment means, 3, 23, 43, 53... Engagement protrusion, 3a, 23a... Head, 3b, 23b... Neck, 4, 24, 44, 54... Guide protrusion, 6, 2
6, 46... Attachment hole, 27... Inlet side opening, 29...
Exit side opening, 29a... wide part, 29b... narrow width part, 31... guide part.

Claims (1)

[Scope of Claims] 1. The mounting member is provided with a mounting means consisting of an engaging protrusion having a head wider than the neck portion at its tip and a guide protrusion located near the engaging protrusion. is inserted into one of the locking holes in the attached member, and the head of the locking projection is bent in a direction orthogonal to the width direction and then returned to the exit side of the locking hole in the insertion direction of the locking projection. A two-object mounting structure in which the mounting member is attached to the member to be attached by engagement with a peripheral edge, wherein the guide protrusion of the attachment means is lower in height than the head of the engagement protrusion so that the attachment member is attached to the attachment member. The attachment hole is arranged in the width direction of the attachment protrusion head, and the engagement hole has an inlet side opening with a predetermined depth corresponding to the attachment means on the entrance side in the insertion direction of the attachment means, and a width of the attachment protrusion head. and a thick removal opening, and on the exit side in the insertion direction of the mounting means, there is a wide part corresponding to the head of the engagement protrusion, and a wide part that is connected to the wide part and is an extension of the entrance side opening. and a narrow part corresponding to the neck of the engagement protrusion, and the engagement protrusion is connected to the narrow part of the outlet side opening in the circumferential wall of the attachment hole. A mounting structure for two objects, characterized in that the mounting member includes a guide portion that bends to the side, and a removal hole for inserting a removal jig is provided in the mounting member at a position opposite to the side surface of the mounting means.