JPH0354972Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a clip for attaching panel materials, and more specifically, to clips for attaching panel materials, such as silencer mats that are attached to interior materials for automobiles, the back side of automobile bonnets, etc. The present invention relates to a clip for attaching a panel material having a certain thickness to the body of an automobile or the like via stud bolts.

(Prior Art) As a conventional clip for mounting such a panel material, as shown in FIG. 9, there is a silencer mat mounting which is composed of two parts, a first part 1 and a second part 2 made of synthetic resin. There is a clip 3 for use (see Japanese Utility Model Application No. 136612/1983). A presser flange 5 is provided at the upper end of the cylindrical shaft portion 4 of the first part 1,
Furthermore, by forming the upper and lower halves of the shaft 4 to have different diameters, a locking step 6 is provided on the outer periphery of the shaft 4, and furthermore, from the vicinity of the lower end of the shaft 4, a locking step 6 is provided inward. A pair of locking claws 7 that protrude oppositely are provided. Further, the cylindrical shaft portion 8 of the second component 2 has a diameter that allows it to be fitted onto the shaft portion 4 of the first component 1 in an externally inserted state, and a presser flange 9 is provided at its lower end, and a presser flange 9 is provided at its upper end. A pair of locking pawls 10 that engage with the locking step 6 protrude inwardly from near the portion.

First, the shaft parts 4 and 8 of both parts 1 and 2 are inserted into the mounting hole 12 provided in the panel-shaped sponge silencer mat 11 from the upper and lower sides, respectively, and fitted together. By engaging with the locking pawl 10, it is prevented from coming out, and by applying the shaft portion 8 as a spacer to the presser flange 5 of the first part 1, the presser flanges 5 and 9 are kept at a predetermined distance.
The silencer mat 11 made of sponge was held in an appropriately compressed state by the holding flanges 5 and 9 so as to be maintained at h1. Next, the shaft portion 4 of the clip 3 previously attached to the silencer mat 11 is fitted into the stud bolt 14 protruding from the body 13, and the locking pawl 7 is engaged with the thread groove of the stud bolt 14. The silencer mat 11 was attached to the body 13 by preventing it from coming off.

(Problem to be solved by the invention) By the way, with clips that are used by fitting two parts together as described above, the two parts are generally assembled in such a way that the two parts can be fitted together with a low load (small operating force). There are conflicting demands to improve the workability of the assembly, while maintaining the strength of the assembly by requiring a high load (large external force) to separate the two fitted parts.

However, in the clip 3 described above, the mating load and disengagement load of both parts 1 and 2 are determined by the strength of the locking pawl 10, so it cannot sufficiently meet the requirements for low mating load and high disengagement load. Nakatsuta.

Next, as shown in FIG. 10, when installing a thicker silencer mat 11 than that shown in FIG. It is necessary to set it to a large value. Therefore, the spacer shaft 8 of the second part 2 must have a length of h2, and in order to reduce the wobbling of the clip 3, the shaft 4 of the first part 1 must also be made long to prevent its locking. The pawl 7 must engage near the base of the stud bolt 14. That is, for silencer mats 11 having different thicknesses, both parts 1,
There was a problem that neither of the two methods could be used in common.

Therefore, the present invention provides a clip for attaching a panel material that is used by fitting a first part and a second part, each of which has a flange for holding down the panel material, with a low fitting load and a high detachment load for these parts. The technical problem to be solved is to make it possible to simultaneously realize the load and to make it possible to use at least one of the above-mentioned parts in common for panel materials of different thicknesses. .

(Means for Solving the Problems) In order to solve the above problems, the panel material mounting clip of the present invention has a base end of a cylindrical shaft into which a stud bolt protruding from the body of an automobile or the like can be inserted. A first part is provided with a flange for holding down the surface of the panel material, and a cylindrical shaft part for a spacer that can be fitted onto the shaft part of this first part in an externally inserted state is provided with a flange for holding down the back surface of the panel material. and a second part having a flange, the distal ends of the shaft parts of both parts are each provided with locking parts for preventing slipping out that engage with each other in the axial direction, and the shaft part of the first part is connected to the stud. It is formed with an inner diameter that allows it to fit almost tightly into the bolt, and
A slit with an open end face is provided at the tip of the shaft portion so that the diameter of the tip portion can be elastically reduced, and the base end of the shaft portion of the second component is provided with a slit that is axially connected to the stud bolt. Further, the shaft portions of both parts are provided with locking portions for co-rotation that engage with each other in the axial direction of both shaft portions. be.

In the above technical means, the panel material to be installed includes automobile silencer mats,
This includes interior materials, car floor carpets, etc., and it does not matter whether the panel material is soft (sponge, rubber, etc.) or hard (synthetic resin, metal, etc.).

In addition, the retaining portion provided on the shaft portions of both components may consist of a locking step and a locking pawl that can be engaged with the step, or a pair of protruding locking portions that can be engaged with each other. It may be made of a flange.

One or more slits are provided in the shaft portion of the first component, but when two or more slits are provided, the positional relationship between the slits does not matter.

Further, the locking portion for preventing bolt removal provided on the shaft portion of the second component may be, for example, a locking pawl that engages with the thread groove of the stud bolt, or an axial protrusion that is press-fitted into the thread groove of the stud bolt. It may be a clause.

Note that although the first part and the second part are usually made of synthetic resin, they may be made of other types of materials.

(Function) When the shaft portion of the second component is fitted into the shaft portion of the first component in an externally inserted state, there is resistance due to the locking portion for preventing the shaft portions of both components from slipping out, but the shaft portion of the first component By forming the slit, the diameter of the tip elastically decreases, thereby reducing this resistance, so that the fitting is relatively easy.

After fitting the first part and the second part and sandwiching the panel material by the holding flanges of both parts, a stud bolt is inserted into the shaft of the first part. At this time, since the stud bolt is fitted almost tightly into the shaft portion of the first component, the shaft diameter cannot be reduced by forming the slit. Therefore, the detachment of the shaft portions of both components occurs without any reduction in the resistance of the locking portions to prevent the shaft portions from coming off.

In addition, by attaching to the stud bolt,
When the bolt of the second part is inserted into the stud bolt, the locking part for the stud bolt provided on the shaft of the second part engages near the base of the stud bolt to prevent the clip from coming out from the stud bolt, and also to prevent the clip from being removed from the stud bolt. Prevents wobbling.

(Example) Next, a first example of the present invention will be described based on FIGS. 1 to 7.

As shown in FIG. 1, the clip 15 of this embodiment consists of a first part 16 and a second part 17, both of which are made of synthetic resin.

The first component 16 has a circular presser flange 19 formed on the closed upper end of a cylindrical shaft portion 18 and protruding in the radial direction. A groove 20 for turning operation is provided on the upper surface of the presser flange 19.

The shaft portion 18 is connected to a stud bolt 21 which will be described later.
(See Figures 3 and 4) has an inner diameter that allows the shaft 18 to be fitted almost tightly. A collar-like locking part 22 that bulges outward is formed in a ring shape, and two vertical slits 23 are cut to a predetermined length from the tip of the peripheral wall of the shaft part 18. By being pushed in, the shaft portion 18 is bent inward, and its diameter is elastically reduced.
Further, an appropriate number of triangular ribs 24 are provided between the presser flange 19 and the shaft portion 18.

On the other hand, the second component 17 has a circular presser flange 26 formed at the lower end of a cylindrical shaft portion 25 and projecting in the radial direction. This shaft portion 25 is open at both its upper and lower ends, and has an inner diameter that allows it to be fitted onto the shaft portion 18 of the first component 16 in a substantially closely inserted state. On the inner periphery of the shaft portion 25 slightly below the upper end, a pair of protruding locking portions 27 that can be engaged with the brim-shaped locking portion 22 are bulged out from opposing positions. Further, from the inner periphery of the lower end of the shaft portion 25, a pair of claw-shaped locking portions 28 that engage with the stud bolt 21 protrude diagonally upward from opposing positions, as shown in FIG. There is. The inner peripheral side of the upper end opening of the shaft portion 25 is formed into an inclined tapered surface 29, and a pair of triangular ribs 30 that can engage with the ribs 24 protrude from opposing positions on this tapered surface 29. has been done.

Note that the shaft portion 25 of the second component 17 is attached to the clip 1.
It also has the function of a spacer to set the interval between the presser flanges 19 and 26 when using the silencer mat 5, and therefore, as shown in FIG. It is formed with a length h3.

The present embodiment is constructed as described above, and the silencer mat 31 is connected to the silencer mat 31 via the stud bolt 21 protruding from the body 32 of an automobile or the like.
to the body 32, it is used as follows.

First, clip 15 is attached to its stud bolt 21.
Before installing the silencer mat 31
is preceded by In this pre-installation operation, as shown in FIG. 3, the shaft portion 18 of the first component 16 and the shaft portion 25 of the second component 17 are inserted into the mounting hole 33 provided in the silencer mat 31 from above and below, respectively. , the shaft portion 25 is fitted onto the shaft portion 18 in an extrapolated state. At this time, the flange-like locking portion 22 and the protrusion-like locking portion 27 provided on both shaft portions 18 and 25 interfere with each other and provide resistance to the fitting of both shaft portions 18 and 25, but the slit Since the shaft portion 18 equipped with 23 bends inward and elastically reduces its diameter as shown in Fig. 5, the resistance is significantly reduced and the above-mentioned mating operation is facilitated with a low load (small operating force). can be done. Then, as shown in FIG.
When the locking portion 27 of the shaft portion 18 passes through the locking portion 22 of the shaft portion 18, the shaft portion 18 elastically returns to its original shape, so that the locking portions 22 and 27 engage with each other, and both shaft portions 18 ，
A locking operation is performed for 25 minutes. This allows the third
As shown in the drawings and FIG. 4, the first part 16 and the second part 17 are assembled with the silencer mat 31 sandwiched between the holding flanges 19 and 26. In addition, at this time, the shaft portion 2 that functions as a spacer
5 comes into contact with the back surface of the presser flange 19 of the first part 16, so that the presser flange 1
9 and 26 maintain an appropriate clamping width h3.

The clip 15 previously attached to the silencer mat 31 is then attached to the stud bolt 21. This operation is performed on the previously attached clip 1.
This is done by inserting the stud bolt 21 into the shaft portion 18 of No. 5 from below. And Figure 3,
The clip 15 assembled to the stud bolt 21 as shown in FIG. Since it is connected near the base of the silencer mat 31, there is no wobble against the stud bolt 21, and the silencer mat 31
can be fixedly attached to the body 32.

Furthermore, in the above operation, since the stud bolt 21 fitted into the shaft part 18 pushes the first part 16 upward by its fitting force, both the fitted shaft parts 18 and 25 try to separate. Power works. However, since the shaft portion 18 into which the stud bolt 21 is almost tightly fitted can no longer bend inward and elastically reduce its diameter, the large pullout resistance caused by the locking portions 22 and 27 is not reduced and occurs. death,
Both shaft portions 18 and 25 do not separate. Therefore, the assembled state of the clip 15 is maintained. After completing the installation of the silencer mat 31, both shaft portions 18,
The same effect as described above is also performed when other types of external forces (for example, vertical vibrations when a car is running) act to cause the 25 to disengage.

If you wish to remove the silencer mat 31 after it has been attached to the body 32, insert a tool such as a screwdriver into the groove 20 for turning operation provided on the upper surface of the holding flange 19 of the first part 16, and then tighten the stud bolt. All you have to do is rotate it in the removal direction of 21.
When the first part 16 is rotated by this operation, the rib 24 thereof engages with the rib 30 provided on the shaft part 25 of the second part 17, and the second part 17 also rotates in the same direction. 3
It can be removed from the stud bolt 21 while still attached to 1.

Next, in this embodiment, when the thickness of the silencer mat 31 is changed as shown in FIG.
This can be handled by replacing only the second part 17.
That is, by using the second part 17 in which the shaft portion 25 is set to the appropriate length h4 shown in the figure, the presser flanges 19 and 26 are maintained at an appropriate clamping width h4,
In addition, since the locking portion 28 is also engaged with the lower part of the stud bolt 21 whose length has been changed, the clip 15 does not wobble. This has the advantage that the first component 16 of the same standard can be commonly used for silencer mats 31 having different thicknesses.

In the above-described embodiment, the locking parts 22 and 27 correspond to the locking part for preventing the bolt from coming off in the present invention, the locking part 28 corresponds to the locking part for preventing the bolt from coming out, and the ribs 24 and 30 correspond to the locking part for preventing the bolt from coming out. It corresponds to the locking part for accompanying rotation.

Next, a second embodiment of the present invention will be described based on FIG.

In this embodiment, the shaft portion 35 of the first component 34 is
A collar-shaped locking portion 36 that bulges outward is formed on the outer periphery of the lower end of the shaft portion 3 of the second component 37.
The locking portion 36 is provided on the inner periphery slightly below the upper end of 8.
A pair of claw-shaped locking portions 39 that can be engaged with are protruded diagonally downward from opposing positions.

In this embodiment, when the shaft parts 35 and 38 are fitted together, the claw-shaped locking part 39 is elastically deformed and escapes to the outside, so there is an advantage that the fitting load is further reduced.

The configuration, operation, and effects of other points in this embodiment are the same as those in the first embodiment.

(Effects of the invention) The present invention provides a clip for attaching a panel material in which a first part and a second part each having a flange for holding down the panel material are fitted together, and the fitting load of these parts is low. This has the advantage that it is possible to simultaneously realize a high detachment load and a high detachment load, and that one of the two parts can be commonly used for panel materials of different thicknesses.

In addition, the shafts of both parts are provided with locking parts for co-rotation that engage with each other in the axial direction of both shafts, so if you want to remove the panel material after installation, By rotating one part in the direction of loosening of the stud bolt, the second part is rotated along with the first part, so both parts can be easily removed from the stud bolt while still attached to the panel material. A unique effect is obtained in that both the removed parts can be reused by attaching them to the stud bolt.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the clip according to the first embodiment of the present invention, Fig. 2 is a bottom perspective view of the second part of the clip, and Figs. 3 and 4 respectively show how the clip is used. Lines A-A and B-B in Figure 1
5 and 6 are cross-sectional views of essential parts showing the fitting operation between the first and second parts of the same clip, and FIG. 7 is a modification of the first embodiment. FIG. 8 is a vertical cross-sectional view showing the second embodiment of the present invention in use, FIG. 9 is a vertical cross-sectional view showing the conventional clip in use, and FIG. 10 is the same. FIG. 7 is a longitudinal cross-sectional view showing a modified example of the clip in use. 15... Clip, 16... First part, 17...
...Second part, 18,25...Shaft part, 19,26...
...Flange for presser foot, 21... Stud bolt, 2
2, 27, 28...Locking portion, 31...Silencer mat, 32...Body.

Claims (1)

[Scope of Claim for Utility Model Registration] A first part having a flange for holding down the surface of a panel material at the base end of a cylindrical shaft into which a stud bolt protruding from the body of an automobile or the like can be fitted; A second part is provided with a flange for holding down the back surface of the panel material at the base end of a cylindrical shaft part for a spacer that can be fitted onto the shaft part in an externally inserted state, and a second part is provided with a flange for holding down the back surface of the panel material, and a second part is provided at the tip part of the shaft part of both parts. are respectively provided with retaining portions that engage with each other in the axial direction, and the shaft portion of the first component is formed to have an inner diameter that allows it to fit almost tightly into the stud bolt,
A slit with an open end face is provided at the tip of the shaft portion so that the diameter of the tip portion can be elastically reduced, and the base end of the shaft portion of the second component is provided with a slit that is axially connected to the stud bolt. Further, the shaft portions of both parts are provided with locking portions for co-rotation that engage with each other in the periaxial direction of both shaft portions. Features clips for attaching panel materials.