JPH0427689Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to the invention of a shim that is installed, for example, in the lid assembly portion of a sunroof type automobile.

BACKGROUND TECHNOLOGY Conventionally, an automobile has an opening in a part of its roof, and a transparent or translucent lid made of glass or synthetic resin is attached to the opening so that it can be opened and closed by sliding back and forth. It has already been developed and is already commonly used in sunroof type automobiles (see, for example, Japanese Utility Model Publication No. 58-27851).

Problems to be solved by the invention Generally, as shown in FIG. 4, a sunroof is equipped with guide rails 2, 2 on both sides of a frame 1.
The lid 3 and sunshade 4 are assembled so that they can slide in the front and rear directions while being guided by the guide rails 2, 2, and the frame 1 is operated by a drive source consisting of an electric motor, a speed reducer, etc. A lid drive mechanism such as drive wires 5, 5, etc. is assembled to constitute a sunroof assembly, and this frame 1 is attached to the lower side of the opening of the roof.

In the sunroof assembly as described above, the lid 3 must be assembled so that it is flush with the roof around the opening in the fully closed state, sealing the opening. When the lid 3 is tightened and fixed with bolts and nuts to the slider, which is fitted in advance so that it can slide, a shim is interposed in the tightening and fixing part to finely adjust the height position of the lid 3. Conventionally, as shown in Fig. 5, a shim 9 made of a thin plate with a plurality of bolt insertion grooves 9a (usually two) is inserted into the bolt-fastened part. Usually, it is fixed by screwing and tightening a nut.

However, when assembling the sunroof assembly as described above, for example, when assembling the lid, the lid 3 is assembled from the top and then tightened with nuts from the bottom, which requires work from the top and work from the bottom. Since frame 1 is required, conventionally frame 1 is shown in Fig. 4A-
Normally, the frame is set on a workbench that can be rotated about line A, and the worker rotates the frame as needed during assembly.For example, when installing the shim 9, the frame 1 is Hold the frame 1 in an upright position (rotated by 90 degrees around the A-A line from the position shown in Figure 4), then rotate the frame 1 so that the lower side faces upward and use an air tool such as an impact wrench. Generally, the nut is tightened using the Therefore, in the case of the conventional shim shown in Fig. 5, the rotation of the frame 1 or the tightening with an air tool occurs between the time the shim is inserted into the bolted part and the time it is tightened with the nut. It is easy for the shims that have been inserted and set to become misaligned due to vibrations, etc., causing part of them to come off or fall off. If you reassemble the sunroof assembly without noticing that it has completely fallen off, when the sunroof assembly is attached to the vehicle body and the lid is fully closed, there will be vertical misalignment between the lid and the roof around the opening, causing rain to leak. Problems such as the following may occur.

The main object of the present invention is to provide a shim structure that can overcome the above-mentioned conventional problems.

Means for Solving the Problems The present invention provides a shim in which at least two bolt insertion grooves are formed in parallel as described above, and the shape of the insertion groove is changed so that the insertion groove has a width larger than the diameter of the bolt. The width gradually narrows as you go from the mouth to the back, reaching the narrowest neck, which is approximately the same width as the diameter of the bolt.At the back of that neck, there is a series of circular holes that are approximately circular in diameter and have a diameter larger than the diameter of the bolt. It is characterized by being configured in a formed shape.

Operation As described above, when the shim is inserted, the bolt is set in the circular hole from the insertion opening through the neck, and in this state, the bolt is inserted into the recess on one side of the circular hole at the back of the narrow neck. The shim will not change its position significantly or fall off even if vibrations are applied when tightening the bolt.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 3.

Figures 1 and 2 show an example of a sunroof structure to which the present invention is applied.
Reference numerals denote guide rails attached to both left and right sides of the frame 1, and the lid and sunshade 4 are assembled so as to be able to slide in the front and rear directions while being guided by the guide rails 2. A weather strip 31 is fitted to the peripheral edge of the lid 3, and a lid side bracket 32 is provided on the lower surface of the peripheral edge of the lid 3 over the entire circumference.

Reference numeral 6 denotes a slider side bracket to which lid sliders 61 and 62 are attached, and the lid sliders 61 and 62 are fitted so as to be slidable in the lid guide grooves (not shown) of the guide rail 2,
In this state, stack the lid side bracket 32 on the slider side bracket 6, fit the bolt 7 fixed to the lid side bracket 32 into the mounting hole 63 of the slider side bracket 6, and insert the nut into the bolt 7 from below. By screwing in and tightening 8, the lid 3 is assembled so that it can be guided by the guide rails 2, 2 and slid in the front and rear directions.

Reference numeral 10 denotes a sunshade slider attached to both sides of the sunshade 4, and the sunshade slider 10 is fitted in a sunshade guide groove (not shown) of the guide rail 2 so as to be slidable. When assembling the lid 3, before tightening the nut 8, insert a shim 9 between the lid side bracket 32 and the slider side bracket 6. Nilitsudo 3
The height position of the lid 3 is finely adjusted so that it is almost flush with the roof R around the opening.

As shown in FIG. 3, the shim 9 is composed of a thin plate having a groove 91 for inserting into the bolt 7. In the present invention, the width of the insertion groove 91 is the same as that of the insertion opening 92 for the bolt 7.
The diameter of the neck is larger than the diameter of the bolt 7, and the width gradually narrows toward the back, and the width is approximately the same as the diameter of the bolt 7. At the back of the narrowest neck part 93, there is a substantially circular hole 94 with a diameter larger than the diameter of the bolt 7. When the shim 9 is inserted as shown by the dotted line arrow B in Figure 1 with the frame 1 upright, the bolt 7
relatively enters the insertion groove 91 from the insertion port 92 and fits into the circular hole 94 through the neck 93, and the circular hole 94
As mentioned above, since the diameter of the bolt 7 is larger than the diameter of the bolt 7, the shim 9 shifts downward due to its own weight, and the bolt 7 comes into contact with the upper edge of the circular hole 94, as shown by the chain line in FIG. It's becoming like that.

The shim 9 inserted in this way does not come off even when the frame 1 is rotated, since the bolt 7 fits into the recessed part of the upper edge of the circular hole 94 at the back of the narrow neck part 93. Also, with an air tool, nut 8
When tightening the nut, it is almost completely prevented from coming off due to the vibration, and the tightening and fixing work with the nut 8 is completed while the shim 9 maintains the almost correct insertion posture as shown in Figures 1 and 2. can do.

The illustrated embodiment shows an example in which the present invention is applied to a single shim in which two bolt insertion grooves are formed, but a shim with three or more insertion grooves may also be used. It goes without saying that the shim of the present invention can be used not only as a shim for a sunroof assembly but also as a shim inserted in a general bolt tightening part.

Effects of the invention As described above, according to the invention, the extremely simple structure prevents the shim inserted into the bolt tightening part from changing its position significantly or falling off due to vibrations until the tightening is completed. The intended function of finely adjusting the height position of the bolt tightening fixing part is maintained in the normal insertion position without causing the shim to shift or fall off as mentioned above. Since there are no cracks, the assembly workability can be significantly improved, and the practical effect is extremely large.

[Brief explanation of drawings]

Figure 1 is a plan view of the main parts of a sunroof assembly using the shim of the present invention, and Figure 2 is taken along the line X-X in Figure 1.
3 is a plan view showing an example of a shim according to the present invention, FIG. 4 is a partially cutaway perspective view showing the schematic structure of a sunroof assembly, and FIG. 5 is a plan view of a conventional shim. It is. 1... Frame, 2... Guide rail, 3...
Lid, 6... Slider side bracket, 32...
Lid side bracket, 7... Bolt, 8... Nut, 9... Shim, 91... Insertion groove, 92... Insertion port, 93... Neck, 94... Circular hole.

Claims (1)

[Scope of utility model registration request] In a shim made of a thin plate material that is interposed in a bolt-fastened part between a mounting surface and an object that is connected to the mounting surface and is tightened and fixed with a bolt, the above-mentioned bolt The width gradually narrows as you go deeper from the insertion opening, which has a width larger than the diameter of the bolt, and there is a continuous approximately circular hole with a diameter larger than the diameter of the bolt at the back of the neck, which has a width approximately the same as the diameter of the bolt. 1. A shim characterized in that at least two bolt insertion grooves each having a shape similar to the above are formed in parallel on the shim.