JP2002106530A - Fixture of parts - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fixture of parts which a cap does not drop out, even if big vibration, big shock, etc., are given to the parts. SOLUTION: The joint hole 1e and the slit 1f in the direction of axis line are formed at the side of the fixing member 1 fixed to the car body by fixture 3. Moreover, joint projection 2c jointed with joint hole 1e and joint pin 2d capable of being inserted freely into slit 1f are provided with in the shape of projection at the cap 2 in which can be freely inserted into the fixing component 1. The wedge part 1j is formed by jointing the joint pin 2d in the middle of slit 1f in order not to drop out the cap 2 from the fixing component 1 even if there are a big vibration and a big shock to the parts. Thereby, it can certainly prevent that the cap 2 drops out from the component 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component fastening device for mounting a component such as an interior panel to a vehicle body in a good manner.

[0002]

2. Description of the Related Art Conventionally, in order to protect an occupant from an impact at the time of a collision, an interior panel for interior of a vehicle interior is provided with a shock absorbing member having a combination of grid-like ribs or the like, or an inflatable cushion (air). Bag).

[0003] Further, such an interior panel is designed to be crushed or broken when an occupant collides or the airbag is inflated.
The interior panel is firmly attached to the vehicle body with fasteners such as bolts so that the interior panel does not fall off the vehicle body.

However, fixing tools such as bolts have a problem that when exposed to the surface of the interior panel, the appearance is poor, and when vibration or the like is applied, the fastener is loosened and the interior panel cannot be securely fixed to the vehicle body.

In order to solve such a problem, for example, Japanese Patent Application Laid-Open No. Hei 10-272975 proposes an article mounting structure that is easy to use and easy to assemble.

The article mounting structure disclosed in the above publication is composed of a first clip and a second clip. When the article is mounted on the first clip fixed to the vehicle body with a fixing tool such as a bolt, the second clip is mounted on the first clip. Insert the clip and
When the clip is rotated in a predetermined direction, the convex portion projecting from the inner surface of the first clip is guided by a circumferential engaging groove formed on the outer peripheral surface of the second clip, and Is moved in a direction perpendicular to the approach direction, thereby
Since the second clip is locked to the clip, the second clip does not come off from the first clip even if vibration or the like acts on the article, so that the article can be securely fixed.

[0007]

In the article mounting structure disclosed in the above publication, a tapered portion is provided in the engaging groove, and the first clip and the second clip are attracted to each other by the tapered portion, so that the first clip is used. Although the second clip is prevented from coming off, the structure prevents the second clip from loosening due to frictional resistance between the tapered portion and the convex portion.
When a large vibration or impact is applied to the article, the frictional resistance of the friction surface decreases, and as a result, the second clip is loosened, comes off the first clip, and scatters.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and is intended to provide a simple component fastening device which does not have to worry about the cap coming off and being scattered even when a large vibration or impact is applied to the component. It is intended to provide a low-cost configuration.

[0009]

In order to achieve the above object, a component fastening device according to the present invention is characterized in that a mounting member provided at a mounting portion of a component is fixed to a vehicle body by a fixing tool, so that the device can be fixed to the vehicle body. A component fastening device for fastening the component, wherein one of the attachment member and a cap that can be inserted into the attachment member is formed with an engagement hole, and the other is engaged with the engagement hole. In addition to projecting an engaging projection, a slit is formed in one of the mounting member and the cap in the axial direction, and a locking pin that can be inserted into the slit is projected on the other side, and the slit is provided in the middle of the slit. To
By locking the locking pin, a wedge portion is formed to prevent the cap from coming out of the mounting member.

With the above structure, even if a large vibration or impact is applied to the parts due to a collision of the vehicle or the like, the wedge portion in which the locking pin is locked prevents the cap from coming out, so that the cap is not moved from the inside of the mounting member. As a result, the cap is prevented from falling off due to an impact.

In order to achieve the above object, a component fastening device according to the present invention is characterized in that a cap comprises a cylindrical portion and a flange portion protruding from one end of the cylindrical portion, and an outer peripheral surface of the cylindrical portion. In addition, an engaging projection and a locking pin are protruded.

According to the above configuration, since the rigidity of the cap is increased, even if a large impact is applied to the component, the engaging projection does not come off from the engaging hole and the locking pin does not come off from the wedge portion. As well as being able to reliably prevent falling off, the fastener that secures the parts to the vehicle body is covered with a cap,
The appearance is very good because it is not exposed on the surface of the component.

In order to achieve the above object, a component fastening device according to the present invention is characterized in that slits are formed on both sides of an engagement protrusion protruding from a cylindrical portion so that the diameter of the engagement protrusion can be reduced. is there.

With the above-described structure, the diameter of the engagement projection is reduced when the cap is pressed into the mounting member, so that the cap can be easily pressed in, and after the cap is pressed, the engagement projection expands in diameter due to elasticity. Since the cap is engaged with the mating hole, it is possible to reliably prevent the cap from coming off the mounting member.

In order to achieve the above-mentioned object, in the component fastening device of the present invention, the diameter of the engagement projection is reduced by forming a thin cylindrical portion.

According to the above configuration, the diameter of the engagement protrusion can be reduced only by reducing the thickness of the cylindrical portion, so that the cap can be easily formed.

In order to achieve the above object, a component fastening device of the present invention comprises a component to be fastened to a vehicle body by an interior panel and a shock absorbing member or a curtain type airbag provided inside the interior panel. Things.

According to the above structure, even if the occupant collides with the interior panel at the time of collision of the vehicle and the interior panel is crushed, or the curtain-type airbag is inflated and the interior panel is severely impacted such that the interior panel is broken, the cap is prevented. Since it does not fall off, it is suitable for fastening means for fastening an interior panel or the like to a vehicle body.

[0019]

Embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view of a component fastening device, FIG. 2 is a sectional view of the same, FIG. 3 is a sectional view taken along line AA of FIG. 2, and FIGS. FIG.

As shown in FIG. 1, the component fixing device includes a mounting member 1 formed integrally with a mounting portion of the interior panel 5;
A cap 2 fitted to the mounting member 1,
Both are formed of resin.

The mounting member 1 is formed of a cylindrical body 1b having one end opening to the surface of the interior panel 5 and the other end closed by a bottom plate 1a. A flange 2a of a cap 2 is provided around the opening 1c. An annular concave step portion 1d fitted from above is formed.

In the circumferential surface of the cylindrical body 1b, a pair of square-shaped engaging holes 1e are provided at positions facing each other,
e A slit 1f is formed in the axial direction at a position substantially 90 ° apart in the circumferential direction.

The engagement hole 1e is engaged with an engagement projection 2c protruding from the outer peripheral surface of the cylindrical portion 2b of the cap 2.
The b is formed from the bottom plate 1a side to almost the middle part.

As shown in FIGS. 1 and 4, the slit 1f includes a first linear portion 1g and a second linear portion 1h.
The upper end side of the linear portion 1g reaches the concave step portion 1d, so that the cylindrical locking pin 2d protruding from the outer peripheral surface of the cylindrical portion 2b of the cap 2 can be easily inserted from above. .

The second straight portion 1h is slightly displaced in the circumferential direction from the first straight portion 1g, the lower end reaches the bottom plate 1a, and the first straight portion 1g and the second straight portion 1h. An inclined surface 1i for guiding the engaging pin 2d inserted into the first linear portion 1g toward the second linear portion 1h and a locking pin 2d entering the second linear portion 1h are provided on the continuous portion. A wedge portion 1j is formed to prevent returning to the portion 1g side.

The wedge portion 1j has an inclined surface 1k which is gradually inclined downward from the upper end of the second straight portion 1h to the inclined surface 1i, and the engaging pin 2d is engaged with the inclined surface 1k to engage the wedge portion 1j. The fixing pin 2d is prevented from returning to the first straight portion 1g side, and a mounting hole 1m is opened in the center of the bottom plate 1a of the mounting member 1, and the mounting hole 1m is located above the mounting hole 1m. By screwing a fixing tool 3 such as a bolt inserted into the vehicle body 4, the mounting member 1 is attached to the vehicle body 4.
Is fixed.

On the other hand, the cap 2 has a flange 2a having a diameter larger than the outer diameter of the cylindrical portion 2b protruding from one end of the cylindrical portion 2b. A pattern similar to the surface of the interior panel 5 such as garnish attached to the inner surface of the interior panel 5, for example, a pattern of leather or the like is formed by graining.

A pair of engaging projections 2c projecting from the outer peripheral surface of the cylindrical portion 2b are formed in a triangular shape whose height gradually decreases toward the lower end of the cylindrical portion 2b. The slit 2e is provided on both sides of the engagement protrusion 2c so that the diameter can be reduced elastically in the center direction of the cylindrical portion 2b when the cylindrical member 2b is fitted into the cylindrical member 2b.
From the lower end to almost the middle.

The thickness of the cylindrical portion 2b is reduced to reduce the thickness of the cylindrical portion 2b.
The slit 2e may be omitted if b itself can be elastically reduced in the radial direction.

Next, the operation of the above-described component fastening device will be described with reference to FIG. 3. For example, an interior panel 5 mounted near the roof panel of the vehicle body 4 is provided with an impact when an occupant collides with the inner surface. A shock-absorbing member that absorbs and a curtain-type airbag are stored in a folded state, so that they do not fall off from the vehicle body 4 even if they are crushed by an occupant or break when the airbag is inflated. In addition, it is necessary to prevent the head 3a of the fixture 3 from being exposed on the surface of the interior panel 5 in appearance.

Therefore, in the embodiment of the present invention, the mounting member 1 formed on the mounting portion of the interior panel 5 is mounted at the component mounting position of the vehicle body 4 by the fixing tool 3, so that the interior panel 5 is mounted inside the vehicle body 4. Is firmly fixed.

Next, the cylindrical portion 2b of the cap 2 is fitted through the opening 1c of the mounting member 1 opened on the surface of the interior panel 5.

At this time, the locking pin 2d projecting from the outer peripheral surface of the cylindrical portion 2b is inserted into the first linear portion 1g of the slit 1f formed in the cylindrical body 1b of the mounting member 1.

Next, when the cap 2 is further pushed in in this state, the locking pin 2d moves straight through the first linear portion 1g as shown in FIG. 4A, and as shown in FIG. Upon reaching the inclined surface 1i, the engagement protrusion 2c protruding from the outer peripheral surface of the cylindrical portion 2b is elastically deformed inward as shown in FIG.

When the cap 2 is further pushed in when the locking pin 2d of the cap 2 reaches the inclined surface 1i, the locking pin 2d is guided by the inclined surface 1i, and as shown in FIG. The cap 2 is slightly rotated in the circumferential direction with respect to the mounting member 1 because the cap 2 is moved toward the linear portion 1h, and the engaging projection 2c is inserted into the engaging hole 1e formed in the cylindrical body 1b of the mounting member 1. Then, it elastically returns to the original position as shown in FIG.

The cap 2 inserted into the mounting member 1 as described above is mounted on the mounting member 1 by engaging the engaging projection 2d with the engaging hole 1e as shown in FIG. 1. At this time, the locking pin 2d is at the position (b) in FIG. 4 and is not locked to the wedge portion 1j.

On the other hand, when the occupant hits the interior panel 5 due to a vehicle collision or the like, or when an impact force acts in a direction such that the airbag is inflated and the interior panel 5 is instantly lifted, the impact causes the engagement projection. 2d comes off and cap 2
Try to jump out of the mounting member 1 as shown by the arrow in FIG.

However, a locking pin 2d projecting from the cylindrical portion 2b of the cap 2 is locked to a wedge portion 1j formed in the middle of the slit 1f as shown in FIG. Since the protrusion of the cap 2 from the inside of the mounting member 1 is prevented, it is possible to reliably prevent the cap 2 from scattering due to an impact at the time of a collision.

The head 3a of the fixing member 3 for fixing the interior panel 5 to the vehicle body 4 has the opening 1c closed by the cap 2 while being housed in the cylindrical body 1b of the mounting member 1. The head 3a of the fixing device 3 on the surface of the interior panel 5
Are not exposed, thereby improving the appearance.

FIGS. 6 and 7 show a modification of the locking pin 2d. The locking pin 2d shown in FIG. 6 is formed in a quadrangular prism shape, and the locking pin 2d shown in FIG. It is formed in a column shape.

In any case, after entering the second linear portion 1h of the slit 1f, it is locked on the inclined surface 1k of the wedge portion 1j provided at the continuous portion of the first linear portion 1g and the second linear portion 1g. The point that the cap 2 is prevented from falling off is the same as that of the above-mentioned embodiment, but when formed in a triangular prism shape as shown in FIG. 7, the lower end of the wedge portion 1j and the upper end of the locking pin 2d Are isolated, so that the effect of preventing the cap 2 from coming off is further improved.

In the above embodiment, the engaging hole 1e and the slit 1f are provided on the mounting member 1 side, and the engaging projection 2c and the locking pin 2d are provided on the cap 2 side. 1e and a slit 1f, and an engaging projection 2c and a locking pin 2d may be provided on the mounting member 1 side.
These may be used in combination.

Further, the case where the part fixed to the vehicle body 4 is the interior panel 5 has been described, but it is needless to say that the present invention can be applied to the whole part mounted on the vehicle body 4.

[0045]

As described in detail above, according to the present invention, one of a mounting member for fixing a part to a vehicle body by a fixing tool and a cap which can be inserted into the mounting member has an engaging hole, and the other has an engaging hole. In addition to projecting an engaging projection that engages with the hole, a slit is formed in one of the mounting member and the cap in the axial direction, and a locking pin that can be inserted into the slit is projected on the other, and the slit is formed. In the middle, the locking pin is locked to form a wedge part that prevents the cap from coming out of the mounting member, so that even if a large impact is applied to the parts due to the collision of the vehicle, the locking pin can be Since the locked wedge part prevents the cap from coming off, the cap does not come off from the mounting member,
Thereby, it is possible to reliably prevent the cap from scattering due to the impact.

Further, since the cap is formed of a cylindrical portion and a flange portion protruding from one end of the cylindrical portion, and the engaging projection and the locking pin are protrudingly provided on the outer peripheral surface of the cylindrical portion. Since the rigidity of the cap is increased, even if a large impact is applied to the component, the engaging projection does not come off from the engaging hole, and the locking pin does not come off from the wedge portion, so that the cap can be reliably prevented from falling off. At the same time, the fixing tool for fixing the component to the vehicle body is covered with the cap and is not exposed on the surface of the component, so that the appearance is very good.

Further, since the parts to be fixed to the vehicle body are constituted by an interior panel and an impact absorbing member or a curtain type air bag is provided inside the interior panel, an occupant strikes the interior panel in the event of a vehicle collision. Even if the interior panel is crushed and the impact is absorbed in the direction where the curtain panel airbag inflates and the interior panel is instantly lifted by absorbing the impact, the cap does not scatter, It is suitable for fastening means for fastening an interior panel or the like to a vehicle body.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a component fastening device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the component fastening device according to the embodiment of the present invention.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIGS. 4A to 4C are explanatory diagrams of the operation of the component fastening device according to the embodiment of the present invention.

FIGS. 5A to 5C are explanatory views of the operation of the component fastening device according to the embodiment of the present invention.

FIG. 6 is an explanatory view showing a modification of the component fastening device according to the embodiment of the present invention.

FIG. 7 is an explanatory view showing a modification of the component fastening device according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Attachment member 1e Engagement hole 1f Slit ij Wedge part 2 Cap 2a Flange part 2b Cylindrical part 2c Engagement protrusion 2d Lock pin 2e Slit 3 Fixture 4 Body 5 Interior panel

Claims (5)

[Claims] 1. A component fixing device for fixing a component to a vehicle body by fixing a mounting member provided at a component mounting portion to a vehicle body with a fixing tool, wherein the mounting member and the component An engagement hole is formed in one of the caps that can be inserted into the attachment member, and an engagement projection that engages with the engagement hole is provided on the other, and one of the attachment member and the cap is provided. A slit is formed in the axial direction on the other side, and a locking pin that can be inserted into the slit is protrudingly provided on the other side, and the locking pin is locked in the middle of the slit, so that the cap is attached by the mounting member. A component fastening device, wherein a wedge portion is formed to prevent the escaping. 2. The cap according to claim 1, wherein the cap comprises a cylindrical portion and a flange portion protruding from one end of the cylindrical portion. 2. The component fastening device according to claim 1, wherein a pin is protruded. 3. The component fastening device according to claim 2, wherein slits are formed on both sides of the engagement protrusion protruding from the cylindrical portion so that the diameter of the engagement protrusion can be reduced. 4. The component fastening device according to claim 2, wherein the engagement protrusion is made to be able to be reduced in diameter by forming the cylindrical portion to be thin. 5. The component fixed to the vehicle body is formed of an interior panel, and an impact absorbing member or a curtain airbag is provided inside the interior panel.
5. The component fastening device according to any one of claims 4 to 4.