JPH0563945U - Resin nut for mounting the protector of the fuel tank - Google Patents

Abstract

(57) [Summary] [Purpose] When mounting the resin nut on the mounting projection of the flange of the fuel tank, it is not necessary to perform a hole-seeking operation to match the tightening holes of the two To provide a resin nut for mounting a protector of a fuel tank, which has excellent workability. When a protector flange portion 91 of a protector 9 is fixed to a mounting projection 81 of a fuel tank 8, the resin nut 1 is mounted on the mounting projection 81, and the resin nut 1 is mounted on the periphery of the mounting projection 81. Positioning recess 7 for covering
Having 2. The positioning recess 72 covers the peripheral edge from three directions and automatically aligns the tightening holes.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a resin nut used when a protector is attached to a vehicle fuel tank.

[0002]

[Prior art]

 As shown in FIGS. 7 to 10, a protector 9 is attached below the fuel tank 8 provided in the vehicle. The protector 9 is a cover for protecting the fuel tank 8 from damages from the road surface, flying stones, muddy water, and the like. Further, when attaching the protector 9 to the fuel tank 8, as shown in FIGS. Fix the part 91.

At this time, the resin nut 7 is mounted on the mounting convex portion 81, the lower piece 73 of the resin nut 7 is interposed between the protector flange portion 91, and these are fixed by the screw 85. The resin nut 7 has a boss portion 71 on the upper portion, and the boss portion 71 has a screw hole 710 into which the screw 85 is screwed.

Further, the resin nut 7 has an inscribed surface 72 that comes into contact with the tip end surface 811 of the mounting projection 81, and holds the mounting projection 81 between the lower piece 73 and the upper piece 75. Has an opening 70. When mounting the resin nut 7 on the mounting projection 81, as shown in FIGS. 9 and 10, the opening 70 is inserted so as to be sandwiched from the direction of the tip surface 811 of the mounting projection 81, and the tip surface 811 is inserted. The resin nut 7 is brought into contact with the inscribed surface 72.

Next, the resin nut 7 is screwed so that the screw hole 710 of the boss portion, the fastening hole 815 of the mounting projection 81, and the fastening hole 731 of the lower piece 73 of the resin nut are aligned with each other. Adjust the position of 7. Then, the screw hole 710, the tightening holes 731, 815, and the tightening hole 915 of the protector flange portion 91 of the protector 9 are aligned with each other, and the protector flange portion 91, the mounting projection 81, and the resin nut 7 are Fix with screws 85. Incidentally, reference numeral 86 in FIG. 9 is a washer.

[0006]

[Problems to be solved]

 However, in the conventional resin nut 7 described above, the resin nut 7 is moved in order to align the screw hole 710 and the tightening hole 731 with the tightening hole 815 of the mounting projection 81, and while visually confirming, It is necessary to perform what is called a hole-seeking operation. Therefore, it takes time to assemble the fuel tank and the protector, and the assembly workability is poor. In view of such conventional problems, the present invention aims to provide a resin nut for mounting a protector of a fuel tank, which does not require the above-mentioned hole drilling operation and is excellent in assembling workability.

[0007]

[Means for solving the problem]

 The present invention, when fixing a protector covering the lower part of a fuel tank to a flange portion of a fuel tank provided on a vehicle, is a resin nut to be mounted on a mounting projection for mounting a protector protruding from the flange portion. The resin nut is a protector mounting resin nut for a fuel tank, characterized in that it has a positioning recess that covers the periphery of the mounting projection. What is most noticeable in the present invention is that the resin nut has a positioning concave portion that covers the periphery of the mounting convex portion protruding from the flange portion.

The positioning recess is formed on the inner peripheral edge between the upper piece and the lower piece of the resin nut. The positioning recess is formed so that when it comes into contact with the peripheral edge of the mounting projection, a hole such as a screw hole of the resin nut and the tightening hole of the mounting projection are aligned. Therefore, it is preferable that the positioning recess has a shape that is substantially the same as the shape of the peripheral edge of the resin nut.

Further, the peripheral edge of the mounting projection means the tip end surface and the left and right end surfaces of the mounting projection. The positioning recess of the resin nut contacts the tip end surface and both left and right end surfaces of the mounting projection to position the hole. Therefore, the left and right end surfaces of the positioning recess do not have to cover all the left and right end surfaces of the mounting projection, but may cover about half of the left and right end surfaces as shown in the embodiment. ..

In other words, the positioning recess is only required to be able to position the above-mentioned hole of the resin nut and the tightening hole of the mounting projection from three directions when the resin nut is mounted on the mounting projection. The resin nut is made of polyamide resin, hydrocarbon resin or the like.

[0011]

[Work and effects]

 When mounting the resin nut according to the present invention on the mounting projection of the flange, the opening of the positioning recess of the resin nut is fitted to the tip surface of the mounting projection, and the resin nut is pushed. As a result, the tip surface is inserted into the positioning recess. Then, the inner peripheral edge of the positioning concave portion is in contact with the distal end surface of the mounting convex portion and the peripheral edges of the left and right end surfaces. At this time, the screw holes and tightening holes of the resin nut are located at the same places as the tightening holes of the mounting projection.

That is, in the present invention, by fitting the resin nut into the mounting projection and inserting the positioning recess so as to cover the periphery of the mounting projection, the hole positions of the mounting projection and the resin nut are automatically adjusted. Match. Therefore, when mounting the resin nut on the mounting projection, it is not necessary to perform hole drilling operation as in the past. Therefore, the workability of assembling the fuel tank and protector is also improved. Therefore, according to the present invention, it is possible to provide a resin nut for mounting a protector of a fuel tank, which does not require the above-mentioned hole drilling operation and is excellent in workability of assembling.

[0013]

【Example】

 A protector mounting resin nut for a fuel tank according to an embodiment of the present invention will be described with reference to FIGS. 1 to 6 and FIG. 1 and 2, the resin nut 1 of the present embodiment projects onto the flange portion 80 of the fuel tank 8 provided on the vehicle when the protector 9 covering the lower portion of the fuel tank 8 is fixed to the flange portion 80. It is to be mounted on the provided mounting projection 81. The resin nut 1 has a positioning recess 12 that covers the peripheral edge 810 of the mounting projection 81.

As shown in FIG. 2, the peripheral edge 810 of the mounting projection 81 has a substantially flat tip surface 811 and arcuate left and right end surfaces 812 and 813. The positioning concave portion 12 of the resin nut 1 has a flat inner contact surface 121 that abuts the tip end surface 811, and a left and right inner contact surface 122 that has a substantially same shape that abuts the left and right end surfaces 812 and 813 of the mounting projection 81. , 123 and.

As shown in FIGS. 1 and 3 to 6, the resin nut 1 has a lower piece 13 and an upper piece 15, and an opening 10 formed between them. A boss portion 11 is provided on the upper portion of the upper piece 15. The boss portion 11 has a screw hole 110 for screwing the screw 85 (FIGS. 1 and 2). The lower piece 13 has a tightening hole 131 coaxial with the screw hole 110. Others are the same as in the conventional example.

Next, the function and effect will be described. When mounting the resin nut 1 on the mounting projection 81, the opening 10 of the resin nut 1 is fitted into the tip surface 811 of the mounting projection 81 as shown in FIGS. push. As a result, the tip end surface 811 and the left and right end surfaces 812 and 813 of the mounting projection 81 are inserted into the positioning recess 12 of the resin nut 1.

The tip end surface 811 and the left and right end surfaces 812 and 813 of the mounting projection 81 are respectively attached to the innermost surface 121 of the positioning recess 12 and the left and right inner contact surfaces 122 and 123. Abut. At this time, the screw hole 111 and the tightening hole 131 of the resin nut 1 are located at the same positions as the tightening hole 815 (FIG. 10) of the mounting projection 81. After that, the screw 85 is screwed into the screw hole 11 of the resin nut 1 as shown in the conventional example (FIGS. 1 and 2).

As described above, according to the resin nut 1 of this embodiment, the resin nut 1 is fitted into the mounting projection 81, and the positioning recess 12 is inserted so as to cover the mounting projection 81. The mounting projection 81 and the hole position of the resin nut 1 are aligned with each other. Therefore, when mounting the resin nut 1 on the mounting projection 81, it is not necessary to perform a hole-seeking operation as in the conventional case. Therefore, the workability of assembling the fuel tank 8 and the protector 9 is also improved.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a state where a resin nut is mounted on a mounting projection of a flange portion and a fuel tank and a protector are fixed to each other in an embodiment, and an enlarged side view of essential parts.

FIG. 2 is a plan view of FIG.

FIG. 3 is a plan view of a resin nut according to the embodiment.

FIG. 4 is a side view of the resin nut according to the embodiment.

FIG. 5 is a rear view of the resin nut according to the embodiment.

6 is a cross-sectional view taken along the line AA of FIG.

FIG. 7 is a plan view of a conventional fuel tank and protector.

FIG. 8 is an enlarged view of a main part of FIG.

FIG. 9 is a view in which a conventional resin nut is attached to a mounting convex portion.

FIG. 10 is a developed perspective view of a conventional resin nut, a mounting projection, and a protector flange.

[Explanation of symbols]

 1. ． ． Resin nut, 10. ． ． Opening, 11. ． ． Boss portion, 111. ． ． Screw holes, 12. ． ． Inscribed surface, 13. ． ． Lower piece, 15. ． ． Upper piece, 8. ． ． Fuel tank, 81. ． ． Mounting projection, 9. ． ． Protector, 91. ． ． Protector flange,

Claims (1)

[Scope of utility model registration request] 1. When fixing a protector for covering a lower portion of a fuel tank to a flange portion of a fuel tank provided on a vehicle, a resin nut mounted on a mounting projection portion for mounting a protector projecting on the flange portion. A resin nut for mounting a protector for a fuel tank, wherein the resin nut has a positioning recess that covers a peripheral edge of the mounting protrusion.