JPH0455899B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a structure for mounting a sign plate on an automobile, and more particularly, to a structure for mounting a small sign plate attached to a front grill of an automobile.

Conventional technology Signage boards attached to automobiles, such as JAF
(JAPAN AUTOMOBILE FEDERATION) sign board is generally attached to the front grill of an automobile in the following manner, and will be explained below with reference to FIGS. 7 and 8.

In the drawings, F is a front grill of a car, 1 is a substantially circular sign board, 2 is a holder for fixing the sign board 1, 3 is a mounting bolt, and 4 is a holder for fixing the sign board 1.
5 indicates a pressing plate, 5 indicates a wing nut, and 6 indicates a washer.

The sign board 1 is made of a thin metal plate with a swollen central portion of its surface, and is adhesively fixed in advance in a recess 2a formed on the surface of the holder 2.

The holder 2 is a synthetic resin molded product, and is integrally molded with a substantially cylindrical nut fitting 7 embedded in the center of the back surface. The nut fitting 7 is
A notch is formed on the outer periphery of the large diameter portion 7a on the proximal end side by knurling or the like to prevent it from rotating relative to the holder 2, and has an axial female screw portion 7b in the center.

The mounting bolt 3 has a threaded portion 3a formed over almost the entire length of its outer periphery, and a slotted portion 3b is formed in the diametrical direction on one end surface for convenience when screwing the mounting bolt 3. has been done.

The pressing plate 4 is a flat plate member bent and formed into a U-shaped cross section, and both lower end surfaces 4a, 4a are formed in a sawtooth shape, and the mounting bolt 3 can be inserted into the central portion. A round hole 4b is formed.

The procedure for attaching the sign board in the above configuration will be explained next.

First, the mounting bolt 3 is rotated using the slotted portion 3b at the end, and the tip of the mounting bolt 3 is screwed into the nut fitting 7 of the holder 2, and firmly tightened.

Next, insert the mounting bolt 3 assembled into the holder 2 into the front grille F of the automobile from the front side, and attach the press plate 4 and washer 6 to the tip of the mounting bolt 3 that protrudes toward the rear side of the front grille F. After inserting the wing nut 5, the wing nut 5 is screwed onto the tip of the mounting bolt 3.

Then, by tightening the wing nuts 5, the front grill F is sandwiched between the holder 2 and the pressing plate 4, and the installation of the sign plate 1 is completed.

Problems to be Solved by the Invention By the way, the above-mentioned conventional sign plate mounting structure has the following problems.

First, in the holder 2, it is necessary to embed the nut fitting 7 integrally during molding.
When molding the holder 2 using a molding device, a means for supplying the nut fitting 7 to the molding device is required, which increases the production cost of the holder 2.

Second, if the sign board 1 needs to be installed in a location where the front and rear surfaces of the front grille F of the automobile are not parallel to each other as shown in FIG. Since a component force in the direction of collapse of the holder 2 acts on the bolts 3 and the nut fittings 7, there is a risk of the holder 2 being damaged. I had to select and install it.

Means for Solving the Problems The present invention has been made in view of the above-mentioned problems.A mounting bolt is attached to the back side of a flat plate-like holder to which a sign board is fixed, and the mounting bolt is attached to the front of the automobile. After inserting the pressure plate from the front side of the grille to the rear side and inserting the pressure plate into the tip of the mounting bolt protruding from the rear face of the front grille, screw together the wing nut. By tightening the wing nut, the holder and the pressure plate are connected. A square hole opening on the back side of the holder is formed, and a step is formed on the back side of the square hole, so that the mounting bolt can be attached to the sign plate by pressing the front grill between A prismatic head of a size that can be fitted into the square hole is formed at the base end, a slit extending along the axial direction of the mounting bolt is formed at the tip of the head, and the head is inserted between the slit. By protruding locking claws on both sides of the holder and fitting the head of the mounting bolt into the square hole of the holder, the stepped portion of the square hole and the locking claw of the head of the mounting bolt can be engaged. A mounting structure for an automobile sign board, in which the mounting bolt is assembled into a holder at the same time.

Effect According to the mounting structure of the automobile sign board according to the present invention, by fitting the prismatic head of the mounting bolt into the square hole formed in the holder, the stepped portion formed in the square hole and the above-mentioned Since the locking pawl formed on the head of the mounting bolt is engaged, the mounting bolt is completely assembled to the holder in a state where it is prevented from rotating relative to the holder.

Embodiment FIGS. 1 to 5 show an embodiment in which the present invention is applied to the sign plate mounting structure shown in FIGS. 7 and 9, and members corresponding to those in FIGS. 7 and 9 are shown. are given the same reference numerals and their explanations will be omitted.

In the drawing, the holder 2' is a synthetic resin molded product as described above, and a square hole 10 is integrally formed in the center of the holder 2'. 10 is made wider only in the width direction. The square hole 10 is located in the middle of the axial direction.
Step portions 10a, 10a are formed in the width direction on both sides of the mounting bolt 3', and the mounting bolt 3' is assembled to the holder 2' and engages with the square hole 10 of the holder 2' at the base end of the threaded portion 3a'. A head 20 is formed.

The head 20 of the mounting bolt 3' is connected to the square hole 10 of the holder 2', as shown in FIGS. 1 to 4.
The holder 20 has a prismatic shape that can be inserted from the back side of the holder 2', and a slit 21 is formed in the center of the head 20 in the depth direction so that the tip of the head 20 can be bent in the width direction. I'm starting to feel more comfortable.
Then, with the slit 21 in between, the head 1
Locking claws 22, 22 are protruded from the upper ends of both sides of the 0, and the upper surfaces of the locking claws 22, 22 are sloped surfaces for convenience of insertion into the square hole 10, The lower surface has stepped portions 10a, 10a of the square hole 10.
The surface is perpendicular to the side surface of the head 20 for engagement with the head 20. Furthermore, on both sides of the head 20, there are positions spaced downward from the locking claws 22, 22 by the same distance as the distance between the opening on the back side of the holder 2' of the square hole 10 and the stepped portions 10a, 10a. Projections 23, 23 which function as stoppers are formed in a protruding manner. The mounting bolt 3' having the head 20 having the above-mentioned shape can be obtained by manufacturing the head 20 and the threaded part 3a' integrally, or by manufacturing the head 20 and the threaded part 3a' separately and joining them together. It will be done.

In the above configuration, the procedure for attaching the sign board will be explained below.

First, in order to assemble the mounting bolt 3' to the holder 2', the head 20 of the mounting bolt 3' is inserted into the square hole 10 of the holder 2', in which the sign plate 1 has been adhesively fixed in the recess 2a in advance. . Then, the head 20 of the mounting bolt 3' first comes into contact with the upper surface of the locking claws 22, 22 on the opening edge on the back side of the holder 2' of the square hole 10, and in this state, the head Part 2
0 is further pushed in, the locking claws 22, 22 receive force in the direction of approaching each other due to the slope of the upper surfaces of the locking claws 22, 22, and the upper part of the head 20 is pushed into the portions on both sides of the slit 21. are bent in a direction toward each other. Then, the locking claws 22, 2
2 is connected to the square hole 10 on the back surface of the holder 2'.
After the width becomes approximately the same as the opening width of the head 20
is pushed into the square hole 10 until the protrusions 23, 23 come into contact with the back surface of the holder 2'. When the projections 23, 23 of the head 20 of the mounting bolt 3' are pushed in until they come into contact with the back surface of the holder 2', the locking claws 22, 22 engage the steps 10a, 10 of the square hole 10.
a, and both sides of the slit 21 return to their original shapes due to their own elastic restoring force, so the locking claws 22, 22 engage with the stepped portions 10a, 10a of the square hole 10. However, the square hole 10 is sandwiched between the locking claws 22, 22 of the head 20 of the mounting bolt 3' and the protrusions 23, 23.
The mounting bolt 3' is assembled to the holder 2'.
In this state, the head 20 of the mounting bolt 3' is
It has a prismatic shape that can be fitted into the square hole 10, and the fitting between the square hole 10 and the head 20 prevents the mounting bolt 3' from rotating relative to the holder 2'.

Below, in the same manner as described above, attach the front grill F of the automobile to the mounting bolt 3' that is assembled to the holder 2'.
The pressing plate 4 and the washer 6 are inserted into the tips of the mounting bolts 3' that protrude from the front side of the front grille F from the front side.

Next, the wing nut 5 at the tip of the mounting bolt 3' is screwed into the wing nut 5, and the wing nut 5 is tightened. At this time, as mentioned above, the mounting bolt 3'
By fitting the head 20 of the head 20 into the square hole 10 of the holder 2', the mounting bolt 3' is prevented from rotating relative to the holder 2'. Just tighten it. Then, the front grill F is sandwiched between the holder 2' and the pressing plate 4 by the tightening force of the wind nut 5, and the installation of the sign plate 1 is completed.

Incidentally, in the above configuration, the holder 2' and the mounting bolt 3' are assembled by using the locking claws 22, 22 and the stepped portion of the square hole 10 using the elastic force of the head 20 in which the slit 21 is formed as described above. 10a, 10a, as shown in FIG.
Since the mounting bolt 3' can be tilted relative to the holder 2' by bending one side of the mounting bolt 3', the mounting bolt 3' can be easily mounted without fear of damage to the holder 2' as in the conventional case.

Furthermore, in the automobile sign board mounting structure according to the present invention, the slit 21 formed in the head 20 of the mounting bolt 3' is not limited to one direction, but as shown in FIG. Slits 21' are formed in two orthogonal directions when viewed from above the head 20' so that the tip of the head 20' is bent in the contraction direction, and is secured to the upper ends of the four sides of the head 20'. Claw 2
2' may be formed on the four sides of the head 20', and in this case, the square holes 10' of the holder 2'' into which the head 20' is inserted are as shown in the figure.
Step portions 10a' are formed on four sides. As mentioned above,
Slit 2 in two directions in the head 20' of the mounting bolt 3''.
1', the tip of the head 20' can be easily bent, making the installation even easier, and the tilting range of the mounting bolt 3'' after being assembled to the holder 2'' is further expanded, allowing the front end of the car to be easily bent. The locations where the grille F can be attached are further expanded.

In the above embodiment, the holder 2' is made of synthetic resin, but it may also be made of metal.
In addition, although the holder 2' and the sign board 1 were made separate,
The sign board 1 and the holder 2' may be formed integrally.

Effects of the Invention As explained above, according to the automobile sign plate mounting structure according to the present invention, when assembling the mounting bolt to the holder, the head of the mounting bolt can be easily inserted into the square hole of the holder. In addition, even if the front and rear surfaces of the front grill are not parallel to each other, the heads of the mounting bolts mentioned above are bent within the square holes.
Since the mounting bolt is tiltable relative to the holder, it can be easily installed, resulting in extremely high workability.Furthermore, when manufacturing the holder, there is no need to embed a nut fitting, and only the holder needs to be molded. In addition, since the square hole and the square columnar head fit together at the joint between the holder and the mounting bolt, there is no need to provide a special rotation stopper between the holder and the mounting bolt, thus reducing manufacturing costs. This can be reduced.

[Brief explanation of drawings]

1 to 5 show an embodiment of the mounting structure for an automobile sign board according to the present invention. FIG. 1 is a longitudinal sectional side view showing how the sign board is installed, and FIG. Fig. 1 is a plan view, Fig. 3 is a vertical cross-sectional side view showing the disassembled state of Fig. 1 above, Fig. 4 is a perspective view of the mounting bolt, and Fig. 5 explains the function of the mounting structure of the sign board. FIG. Figure 6 shows
FIG. 3 is an exploded perspective view of main parts showing another embodiment of the automobile sign plate mounting structure according to the present invention. Figures 7 and 8 show an example of a conventional sign plate mounting structure, with Figure 7 being a vertical side view showing the installed state, and Figure 8 being a vertical side view showing the disassembled state of Figure 7. It is a diagram. FIG. 9 is a schematic diagram for explaining problems in the conventional sign board mounting structure. F...Front grill, 1...Sign plate, 2',
2"...Holder, 3', 3"...Mounting bolt, 4...
...Press plate, 5...Wing nut, 10, 10'
...Square hole, 10a, 10a'...Step part of square hole, 2
0, 20'...Mounting bolt head, 21, 21'...
...slit, 22, 22'...locking claw.

Claims (1)

[Scope of Claims] 1. Mounting bolts are assembled on the back side of a flat plate-like holder with a sign board fixed to its surface, and the mounting bolts are inserted from the front side to the rear side of the front grill of the automobile, and the mounting bolts are inserted into the rear side of the front grille. After inserting a pressure plate into the tip of the mounting bolt protruding from the holder, a wing nut is screwed together, and by tightening the wing nut, the front grill is compressed between the holder and the pressure plate, and the sign plate is attached. A square hole opening on the back side of the holder is formed, a step is formed on the back side of the square hole, and a prismatic column-shaped part of a size that can be fitted into the square hole is formed at the base end of the mounting bolt. A head is formed, a slit is formed at the tip of the head along the axial direction of the mounting bolt, and locking claws are protruded from both sides of the head across the slit, and the holder is By fitting the head of the mounting bolt into the square hole, the stepped part of the square hole and the locking claw of the head of the mounting bolt are engaged, and the mounting bolt is assembled into the holder. A mounting structure for an automobile sign board, characterized by the following.