JPS5962717A - Packing for adjustment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an adjustment gasket that can eliminate gaps between a panel and electrical components when installing electrical components on a panel.

When installing various electrical components into the holes provided in the panel, carve a male thread into the mounting part of the electrical component.

This is normally accomplished by inserting this male thread into a hole in the panel and screwing a tightening nut from the other side. FIG. 1 is an example of this, where the hole 20 part of panel 1,! It is equipped with a push button switch 3 made of air parts. In this case, the main body 4 of the push-button switch 30 is provided with a stepped portion 5, and a male thread 7 is carved on the outer periphery of the cylindrical portion 6, which is shortened by the stepped portion 51C.

The push button switch 3 is attached to the panel 1 by inserting the cylindrical part 6 of the push button switch 3 from below into the hole 2 of the panel l, and screwing the tightening nut 8 from above the panel 1 to tighten it. However, at this time, it is convenient for the height of the tightening nut 8 after tightening to be slightly retracted from the top surface of the push button 9 for the operation of pressing the push button 9. Therefore, adjustment for this 7 was performed by interposing a number of packings IQ appropriately selected depending on the thickness of the panel 1 between the stepped portion 5 and the panel 10. In the figure, 11 is an opening/closing part of the push button switch 3, 12 is an internal gasket for preventing water or oil from entering the back surface of the panel 1 and the inside of the opening/closing part 11, and 13fi is a back spring.

In this way, depending on the thickness of the panel 1, ten gaskets are stacked and used, so it is necessary to prepare a large number of sheets of the same shape.

Therefore, in the past, the chain to make this patchkin 1o,
It was obtained by slicing the cylindrical body 14 as shown in Fig. 2 to a predetermined thickness to obtain a hollow packing lO as shown in Fig. 2 (2), or by punching it from a plate.

For this reason, not only is manufacturing complicated, but also the number of sheets must be calculated and assembled one by one in use, which takes time and effort, and there is also the problem that the number of sheets to be assembled may be too large or too small. Furthermore, in the processing method by molding, the actual number of seals 10 produced per one operation is determined by the size of the mold, and there is also the problem that it takes time to prepare the necessary number of seals 10.

This invention was made to solve these problems. For this reason, the present invention has a structure in which a plurality of annular packing elements, each of which serves as a packing, are laminated and joined together at their inner peripheries to form a cylindrical shape as a whole.

Hereinafter, a first embodiment of the present invention will be explained with reference to FIG. 3. Numeral 15 indicates packing elements, and in this embodiment, five packing elements are stacked. This packing element 15.15・
-. are connected to each other by providing a connecting portion 16 on the inner periphery thereof, forming a cylindrical body 17 as a whole. This cylindrical body 17
To use it as a packing, for example, before screwing the tightening nut 8 shown in FIG. The thickness of the packing can be adjusted by cutting out an unnecessary number of sheets from the joint portion 16 in consideration of the thickness, etc. The sealing element 15 is usually made of polymeric material such as rubber (synthetic rubber) or plastics in order to flex due to the normal force when tightening the tightening nut 8 and seal water or oil that enters from around the tightening nut 8. It is manufactured in

FIG. 4 shows a second embodiment of the invention,
This is an improved version of the one shown in FIG. 3, in which a constriction 18 is formed in the joint 16. In this way, the constriction 1 is formed in the joint 16.
8, when cutting the cylindrical body 17 at the joint portion 16, the cutting operation can be easily performed.

What is shown in FIG. 5 is a third embodiment of the invention. In this case, the joint portion of the stacked packing elements 15 is formed by a plurality of ribs 19 that are narrowed as much as possible at a plurality of locations r/c on the inner circumference of the packing element 15. That is, the stacked packing elements 15 and 150 are connected only by the ribs 19.degree. 19 located radially. In this embodiment, if only this rib 19 is cut,
The cylindrical body 17 can now be separated. In order to manufacture this cylindrical body 17, in addition to the processing method using the forming I/c, the method shown in Fig. 2 (
When slicing a cylindrical body as shown in a), the rib 19
By leaving the part that becomes, you can gain.

What is shown in FIG. 6 is a fourth embodiment of the invention.

In this case, the thicknesses of the stacked packing elements 15 are varied. As a result, the total thickness of the packing elements 15 can be easily set to an arbitrary value.

A fifth embodiment of the invention shown in FIG. 7 further improves usability in this case. In this embodiment, a number 20 indicating the thickness of the packing element 15 is written on the outer periphery of each packing element 15 having a different thickness.

Therefore, during use, the overall thickness can be adjusted while checking the value of this number 2o.

Note that the display of the packing element 15 is 1 regardless of the number 2o.
Make it into a letter or symbol.

Next, FIG. 8 shows a sixth embodiment of the invention. In this case, a protrusion 21 is provided on the outer periphery of each of the stacked packing elements 15. This protrusion 2] is used to hold the cut packing element 15 by hand when removing it. Therefore, it can also be changed to a protrusion. The protrusions 21 (same as protrusions) of this embodiment can be combined with each of the embodiments shown in FIGS. 3 to 7 described above.

Since this invention is constructed as described above, it has the following effects.

■ When attaching electrical components to a panel, the total thickness of the packing elements inserted between the panel and the step of the electrical component can be selected accurately using a simple process, without having to calculate and combine them as required in the past. can do.

■ Since the required number of sheets is the same, there will be no excess or shortage, and the quality will be stable.

■ When the adjustment gasket of this invention is manufactured by machining it into a mold, it has many advantages over conventional metal fittings.

■ When handling electrical parts, if the packings are independent one by one as in conventional ones, there is a risk of them getting lost, resulting in an excess or deficiency in the number of pieces, but this invention does not have such problems. do not have.

■ As in the embodiment, the thickness of the packing can be displayed, or the protrusions can be added to significantly improve usability.

[Brief explanation of the drawing]

Figure 1 is a sectional view showing the state in which the push button switch is mounted on a panel, Figure 2 is an explanation of how to make a packing used for the one in Figure 1, and (A) is a perspective view of the material. ))
Figure 3 is a perspective view of the packing after fabrication, and Figure 3 is the first diagram of this invention.
FIG. 4 is a longitudinal sectional view of the main part of the second embodiment of the invention, FIG. 5 is a longitudinal sectional view of the third embodiment of the invention, and FIG. 6 is a longitudinal sectional view of the third embodiment of the invention. FIG. 7 is a front view of the fourth embodiment of the invention, FIG. 7 is a front view of the fifth embodiment of the invention, and FIG. 8 is a front view of the sixth embodiment of the invention. 15: packing element, 16 two coupling parts. 17: 13-shaped body, 18: constriction, 19: ri
% 2o: Number, 21: Protrusion. Patent Applicant Fujitunki Rizo Co., Ltd. Representative Patent Attorney Yoshihisa Narioka Figure 1 Figure 3 Figure 7 Figure 2 () ~ 10 1”0 Figure 4

Claims (1)

[Scope of Claims] 1) An adjustment packing configured by laminating a plurality of annular packing elements, each of which serves as a packing, and joining them at their inner periphery to form a cylindrical shape as a whole. 2. The adjustment gasket according to claim 1, wherein a constriction is formed at the joint portion of the plurality of gasket elements. 3) In the adjustment packing described in claim 1, the joint portion of the stacked packing elements is formed by a plurality of ribs that are narrowed as much as possible at a plurality of locations on the inner circumference of the packing element. Patsukin for use. 4) An adjusting packing according to claim 1, in which the thicknesses of the stacked packing elements are varied. 5) In the adjustment packing according to claim 1, the thickness of the packing elements to be laminated is changed, and the thickness of the packing element is written on the outer periphery of the packing element with the changed thickness. . 6) In the adjustment gasket described in any one of claims 1 to 5. on the outer periphery of each stacked packing element. Adjustment pads with protrusions and ridges.