JPH0434252Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a structure for watertightly attaching components to mounting holes in panels using bolts and nuts. The present invention relates to a structure for attaching parts to a panel, which allows the parts to be temporarily fastened to the panel before being tightened, thereby allowing the mounting work to be carried out with good workability.

[Conventional technology]

In recent years, as shown in Fig. 10, long plastic side protectors a have been attached to automobile bodies for the exterior of automobiles. The means shown below are generally employed.

That is, as shown in FIG. 11, first, the insert b of the mounting member d, which is formed by fixing the bolt c to the substantially plate-shaped insert b, is inserted into the inner recess e of the side protector a.
A predetermined number of mounting members d are fixed to the side protector a by inserting them into the side protector a, and the bolts c of these mounting members d are passed through the central insertion hole g of the circular ring-shaped closed foam rubber packing f.
Attach Patsukin f to. Next, after inserting the bolts c of these mounting members d into the mounting holes i drilled in the automobile body panel h, the nuts j are screwed onto the bolts c protruding from the panel h and tightened. The side protector a is fixed via the mounting member d.

[The problem that the idea aims to solve]

However, when attaching the side protector a by the above-mentioned method, when the bolt c is inserted into the mounting hole i, the bolt c comes into direct contact with the peripheral wall of the mounting hole i, peeling off the coating on this part, and causing the nut j
When the nut j is tightened, the end face of the nut j comes into direct contact with the surface of the panel h, causing the paint film to peel off in this area, and there is a problem in that rust occurs from these peeled parts. Furthermore, since the mounting member d cannot temporarily fasten the bolt c into the mounting hole i of the panel h, there is a problem in that workability during mounting the protector a is poor. That is, for example, if an automobile body panel h has a warp along the longitudinal direction of the vehicle, when the bolt c is inserted into the mounting hole i, the reaction force of the warp causes the bolt c to come off the mounting hole i. The work of installing protector a was troublesome, as it was necessary to press protector a against panel h when screwing nut j into c.

Furthermore, since the bolts c are fixed to the mounting member d, there is a problem in that several types of mounting members must be prepared with different lengths of the bolts c depending on the thickness of the panel h, the internal structure of the panel h, etc. There are also points.

This invention was developed in view of the above circumstances, and when parts are watertightly attached to a panel using bolts and nuts, the shaft of the bolt or the nut may come into direct contact with the panel when inserting the bolt or screwing the nut. In addition to being able to prevent damage to the panel, it is also possible to temporarily fix the bolts in the mounting holes, and the length of the bolts can be adjusted according to the thickness of the panel, the structure inside the panel, etc. The object of the present invention is to provide a structure for attaching parts to a panel, which is suitably adopted when attaching a side protector to an automobile body panel.

[Means to solve the problem]

In order to achieve the above object, the present invention includes a component to be attached to a panel, a bolt insertion hole through which the bolt shaft is inserted, and a bolt housing space in which the bolt head is accommodated, and the bolt housing space in which the bolt head is accommodated. A component mounting tool is provided with a locking piece that removably fixes the head of a bolt, and the head is fitted and fixed into the bolt housing space of the mounting tool, and its shaft protrudes to the outside through the insertion hole. A bolt is fixed to the mounting tool, a nut is screwed onto the shaft of the bolt, and the shaft of the bolt is mounted on one side of an elastic substrate having a circular hole in the center into which the shaft of the bolt is inserted. A cylindrical elastic insertion protrusion that can be press-contacted with the insertion protrusion is provided protruding along the peripheral edge of the circular hole, and when the shaft of the bolt is press-fitted from the circular hole into the hollow part of the insertion protrusion, the insertion protrusion a packing member configured such that the wall portion of the part expands outward, and the part mounting tool is fixed to the part,
The shaft of the bolt fixed to this mounting tool was press-fitted into the hollow part through the circular hole of the packing member, and the insertion protrusion of the packing member was inserted into the mounting hole of the panel, and the bolt was protruded from the insertion protrusion. The nut is screwed onto the shaft of the bolt, the base plate of the packing member is interposed between the part and the panel, and the insertion protrusion of the packing member is interposed between the nut and the panel. Provided is a structure for attaching a component to a panel, characterized in that the component is attached to the panel.

[Effect]

As described above, the mounting structure of the present invention involves fixing a component mounting tool to the component, inserting the tip of the shaft of the bolt fixed to the mounting tool into the hollow part through the circular hole of the packing member, and inserting the packing member. The protrusion is inserted into the mounting hole of the panel, the bolt is pushed in, the shaft is press-fitted into the hollow part of the insertion protrusion, and then a nut is screwed onto the bolt's shaft protruding from the insertion protrusion and tightened. be. Therefore, when inserting the shaft of the bolt into the mounting hole, the insertion protrusion touches the peripheral wall of the mounting hole, and the bolt shaft does not come into contact with it.
The paint film on the panel will not be peeled off by the bolts. Also, when the bolt is pushed in and the shaft is pushed into the hollow part of the insertion protrusion, the wall of the insertion protrusion expands outward, so the wall of the insertion protrusion presses the peripheral wall of the mounting hole, and this pressing force This prevents the insertion protrusion from coming off the mounting hole, and therefore the bolt is firmly and temporarily fastened to the mounting hole. Furthermore, since the insertion protrusion is interposed between the nut and the panel when the nut is tightened, the end face of the nut does not come into direct contact with the panel, and therefore the coating film is not peeled off by the nut. Furthermore, when the nut is tightened, the board and the insertion protrusion are pressed against the panel, providing excellent sealing performance.

Further, in the component mounting tool, the shaft of the bolt is passed through the bolt insertion hole, the head of the bolt is accommodated in the bolt accommodation space, and the locking piece provided in the bolt accommodation space is engaged with the head of the bolt. Since the bolts are configured to be fixed together, by selecting an appropriate bolt from several types of bolts with different shaft lengths and fixing it to the component mounting tool, the bolt can be protruded from the component mounting tool. The length of the bolt shaft can be easily adjusted. Therefore, by selecting the bolts to be fixed to the component mounting tool according to the thickness of the panel, the internal structure of the panel, etc., it is possible to successfully mount components to any panel using one type of component mounting tool.

Next, the present invention will be specifically explained with reference to Examples, but the present invention is not limited to the following Examples.

〔Example〕

FIG. 1 shows a structure for attaching parts to a panel according to an embodiment of the present invention. This mounting structure has a side protector (not shown) attached to a car body panel 22, and includes a side protector mounting tool 9 fixed to the side protector (not shown), a bolt 11, a packing member 1, and a nut. It is equipped with 24.

The packing member 1 is integrally molded from a rubber-like elastic body, and has the structure shown in FIGS. 2 and 3. That is, 2 in the figure indicates a substrate, and this substrate 2 has an upper ring-shaped projection 4 and a lower ring-shaped projection 5 each having a substantially triangular cross section on the outer peripheral edge of the upper surface and the outer peripheral edge of the lower surface of the disc-shaped main body 3. It was established. Further, a circular hole 6 into which the shaft of a bolt is inserted is bored in the center of the board 2. The lower part 6a of this circular hole 6 is formed to have a slightly smaller diameter than the diameter of the bolt, and the upper part 6b is formed in a tapered shape so that the diameter gradually increases as it goes upward.

On the lower surface of the substrate 2, an insertion protrusion 8 having a bolt insertion hollow portion 7 with a circular cross section inside thereof is provided to protrude along the peripheral edge of the circular hole 6. The upper part 7a of the hollow part 7 has the same diameter as the circular hole 6, the lower part 7b has a smaller diameter than the upper part 7a, and the intermediate part 7c has a tapered shape that gradually becomes larger in diameter as it goes upward. has been done. Then, by press-fitting the bolt shaft into the hollow part 7,
The shaft of the bolt is pressed against the circumferential wall of the lower portion 7b of the hollow portion 7, and the lower wall 8a of the insertion protrusion 8 is expanded outward by the pressing force of the bolt shaft.
At this time, the amount of expansion of the lower wall portion 8a can be appropriately set by adjusting the difference between the diameter of the upper hollow portion 7a and the diameter of the lower hollow portion 7b.

Next, the side protector mounting tool 9 is
As shown in Figures 4 and 5, the plastic insert 1 is inserted into the inner recess of the side protector.
0 and the bolt 1 attached to this insert 10
1, and the packing member 1 is attached to the tip of the bolt 11.

The insert 10 has the configuration shown in FIGS. 5-7. That is, 12 in the figure is a substantially rectangular base having a circular bolt insertion hole 13 in the center;
On one side, a pair of vertical projecting plates 14 are provided at both horizontal edges.
14 are erected along the longitudinal direction, and a pair of lateral projecting plates 15, 15 are erected along the lateral direction on both sides of the insertion hole 13 in the longitudinal direction. A bolt accommodating space 10a is formed between the side projecting plates 15, 15. In addition, 16 and 16 in the figure are the above-mentioned both longitudinal side projecting plates 1, respectively.
4 and 14, the base 12 and the side projecting plate 1
5, 15, a central projecting plate provided between 17, 1
7, 17, 17 are both vertical side projecting plates 14, 14 respectively
This is a triangular reinforcing plate located between the base body 12 and the side projecting plates 15, 15 and located in the middle of the central projecting plates 17, 17, 17, 17. Further, a pair of T-shaped bolt holding plates (locking pieces) 18, 18 are provided upright on both sides of the insertion hole 13 in the lateral direction, facing each other. This holding plate 18 is made up of a vertical plate 18a and a horizontal plate 18b, which is bent slightly inward at both sides, connected to the upper end of the vertical plate 18a. In addition, in the figure, 19, 19, 19, 19 are the base bodies 12, respectively.
A square hole formed on the side of the bolt insertion hole 13, 2
0 and 20 are reinforcing ribs provided between the vertical projecting plates 15, 15 and the bolt holding plates 18, 18, respectively; 21 is the base 2 of the packing member 1 formed around the insertion hole 13 on the other side of the base 12; It is a shallow concave portion with a shape corresponding to .

Further, as shown in FIG. 5, the bolt 11 has a shaft portion 11b at the center of the lower end of the square plate-shaped head 11a.
The shaft portion 11b is inserted into the bolt insertion hole 13 of the insert body 10, and the head portion 11a is inserted into both bolt holding plates 18, 18 in the bolt accommodation space 10a.
It is attached to the insert body 10 by pressing against the elasticity of the holding plates 18, 18 between them. In addition, in the state attached to the insert body 10 in this way, the horizontal plates 18 of the presser plates 18, 18
Both ends of b, 18b are located above the head 11a, so the bolt 11 will not come off the insert 10. Here, the shaft portion 11b of the bolt 11 is
A cylindrical portion 1 having approximately the same diameter as the hollow lower portion 7b of the packing member 1 is attached to the tip of the threaded portion 11c having a diameter slightly larger than the diameter of the circular hole lower portion 6a of the packing member 1.
1d are arranged in series. When the tip of the shaft portion 11b is inserted into the hollow portion 7 through the circular hole 6 of the packing member 1 and the packing member 1 is attached to the tip of the shaft portion 11b, the threaded portion 11c is inserted into the insertion protrusion 8. The packing member 1 is tightly attached to the shaft portion 11b in close contact with the upper part of the inner circumferential wall, and the cylindrical portion 7d is inserted into the lower portion 7b of the hollow portion 7 so that its tip slightly protrudes from the insertion protrusion 8. It's summery.

When attaching the side protector to the body panel of an automobile using the side protector attachment tool 9 and the packing member 1, that is, when constructing the attachment structure shown in FIG. insert 1
0 respectively, insert the insertion protrusions 8 of the packing member 1 of each tool 9 into the mounting holes 23 of the automobile body panel 22 as shown in FIG. 9, and push the bolts 11 forward.
Temporarily fasten the bolt 11 to the mounting hole 23 (note that the side protector is omitted in FIG. 9 and FIG. 1 below). In this case, insert the insertion protrusion 8 into the mounting hole 2.
3, when the bolt 11 is pushed in, the threaded part 11c is press-fitted into the hollow lower part 7b, and the threaded part 11c comes into pressure contact with the peripheral wall of the hollow lower part 7b, and the insertion protrusion 8 The lower wall portion 8a of is expanded outwardly. Therefore, the lower wall portion 8a comes into pressure contact with the peripheral wall portion of the mounting hole 23, and the outer peripheral surface of the lower wall portion 8a expands to the outside of the mounting hole 23, so that the insertion protrusion 8 is pulled out from the mounting hole 23. The bolt 11 is securely locked in the mounting hole 23 without any problems.

Next, as shown in FIG. 1, the tool 9 is fixed to the panel 22 by screwing the nut 24 into the threaded portion 11c of the bolt 11 and tightening it.
In this case, when the nut 24 is screwed into the threaded part 11c and tightened, the nut 24 advances toward the panel 22 and presses the insertion protrusion 8, and this pressing force causes the panel 22 and the nut 24 to The insertion protrusion 8 is crushed between the insertion protrusions 8 and the insertion protrusion 8 is strongly pressed against the peripheral wall of the mounting hole 23, and the insert body 10 advances toward the panel 22 and presses the base plate 2 of the packing member 1. Due to the pressing force, the upper ring-shaped projection 4 and the lower ring-shaped projection 5 are brought into a state in which they are strongly pressed against the shallow-bottomed recess 21 of the insert body 10 and the panel 22, respectively.

Therefore, according to the above mounting structure, the packing member 1 shown in FIGS. 2 and 3 is fixed to the tip of the shaft portion 11b of the bolt 11, and the insertion protrusion 8 of the member 1 is inserted into the mounting hole 23 of the panel 22. Since the bolt 11 is attached to the mounting hole 23, the shaft portion 11b
At the time of insertion, the insertion protrusion 8, which is softer than the paint film, comes into contact with the peripheral wall of the mounting hole 23 and the shaft part 11b does not come into direct contact, so the paint film does not peel off and rust does not occur from this part. Furthermore, by pushing in the rear shaft portion 11 into which the insertion protrusion 8 has been inserted, the lower wall 8a of the insertion protrusion 8 expands outward, and the insertion protrusion 8 presses against the peripheral wall of the mounting hole 23.
The bolts 11 are securely temporarily secured in the mounting holes 23, so even if the panel 22 is warped, the bolts 11
The side protector does not come off from the mounting hole 23, and the work of mounting the side protector is easy. Furthermore, when the nut 24 is tightened, the panel 22 and the nut 24
Since the insertion protrusion 8 is interposed between the nut 24 and the panel 22, the end face of the nut 24 does not come into direct contact with the panel 22, so the coating film will not be peeled off by the nut 24 and rust will not occur from this part. do not have. Furthermore,
When the nut 14 is tightened, the tips of the upper ring-shaped protrusion 4 and the lower ring-shaped protrusion 5 are attached to the insert body 10.
and the panel 22, the watertightness of the contact area between the board 2, the insert 10, and the panel 22 is maintained extremely well, and the insertion protrusion 8 is brought into close contact with the peripheral wall of the mounting hole 13, so that this The watertightness of the contact area is also maintained well, and therefore excellent sealing performance is obtained by the packing member 1 shown in Figs. 2 and 3.
There is no inconvenience such as rainwater or the like migrating to the inside of the panel 22 through the attachment hole 23.

Further, in the side protector mounting tool 9, the shaft portion 11b of the bolt 11 is passed through the bolt insertion hole 13, and the head 11a of the bolt 11 is accommodated in the bolt accommodating space of the mounting tool 9.
Since the bolt 11 is fixed by engaging the bolt holding plates 18, 18 with the bolts, an appropriate bolt can be selected from several types of bolts with different shaft lengths and fixed to the mounting tool 9. By doing so, the length of the bolt shaft portion 11b protruding from the mounting tool 9 can be easily adjusted. Therefore, by selecting the bolts 11 to be fixed to the mounting tool 9 according to the thickness of the panel 22 and the internal structure of the panel 22,
The side protector (component) can be successfully attached to any panel using one type of attachment tool 9.

The structure for attaching the parts of this invention to the panel is as follows:
The present invention is not limited to the embodiments described above, and the shapes of the mounting tool 9 and the packing member 1 can be changed as appropriate, and other configurations can also be changed in various ways without departing from the gist of the present invention. Further, in the above embodiment, the side protector is attached to the body panel of an automobile, but the attachment structure of the present invention can also be suitably employed when attaching various other parts to the panel.

[Effect of idea]

As explained above, according to the structure for attaching parts to a panel according to the present invention, when the bolt is attached to the mounting hole, the bolt shaft may hit the wall surrounding the mounting hole of the panel, or when the nut is tightened, the bolt may It prevents the end surface from hitting the panel, and therefore the paint film on the panel will not be peeled off by bolts or nuts, and the bolts can be securely and temporarily attached to the mounting holes, providing excellent sealing performance. It is something that can be obtained. In addition, the length of the bolt shaft portion is adjustable, and components can be satisfactorily attached to various panels using one type of component mounting tool.

[Brief explanation of the drawing]

FIG. 1 is a partially omitted sectional view showing a structure for attaching parts to a panel according to an embodiment of the present invention, and FIG. 2 is a plan view showing a packing member constituting the attachment structure.
Fig. 3 is a cross-sectional view of the packing member taken along the line shown in Fig. 2, Fig. 4 is a partially sectional right side view showing a side protector mounting tool using the packing member of Figs. 2 and 3, and Fig. 5. is a cross-sectional view of the tool taken along the line in FIG. 4, FIG. 6 is a plan view showing the insert of the tool, FIG. 7 is a bottom view of the insert, and FIG. Figure 9 is a partially omitted cross-sectional view showing the tool temporarily attached to the bolt mounting hole, Figure 10 is a schematic diagram showing the side protector attached to a car, FIG. 11 is a sectional view showing a conventional side protector attachment means. DESCRIPTION OF SYMBOLS 1... Packing member, 2... Board, 6... Circular hole, 7... Hollow part, 8... Insertion protrusion, 9... Side protector mounting tool, 10... Insert body (parts), 10a... Bolt housing space, 11... Bolt, 13... Holding plate (locking piece), 22... Automobile body panel, 23... Mounting hole, 24... Nut.

Claims (1)

[Scope of Claim for Utility Model Registration] A component that is attached to a panel, a bolt insertion hole through which a bolt shaft is inserted, and a bolt accommodation space in which a bolt head is accommodated,
A component mounting tool is provided with a locking piece that removably fixes the head of the bolt in the space; A bolt that is fixed to the mounting tool in a state that projects outward, a nut that is screwed onto the shaft of this bolt, and a circular hole in the center into which the shaft of the bolt is inserted, on one side of an elastic substrate. A cylindrical elastic insertion protrusion that can be press-contacted with the bolt shaft is protruded along the peripheral edge of the circular hole, and when the bolt shaft is press-fitted from the circular hole into the hollow part of the insertion protrusion. a packing member configured such that a wall portion of the insertion protrusion expands outward, the component mounting tool is fixed to the component, and the shaft of the bolt fixed to the mounting tool is inserted into the circular shape of the packing member. The nut is press-fitted into the hollow part through the hole, the insertion protrusion of the packing member is inserted into the mounting hole of the panel, and the nut is screwed onto the shaft of the bolt protruding from the insertion protrusion, and the above-mentioned part and A structure for attaching a component to a panel, characterized in that the component is attached to the panel with the base plate of the packing member interposed between the panel and the insertion protrusion of the packing member interposed between the nut and the panel. .