JP2008064309A - Washer and nut - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate work of checking a nut for fastening to avoid failure of fastening the nut, prevent a nut from loosening and facilitate inspection of fastening after a large number of washers and nuts are fastened, in various fastening work of fastening materials employing bolts, nuts and washers in various industries. <P>SOLUTION: A fixing material 7 is fixed by an penetration groove 10 on the nut side and an extrusion port 4 in a washer with the passage of time by including an indentation in a washer, penetration grooves for a binder and extrusion port in a washer and nut. By so doing, the washer and nut are made to be a loosening preventer. Likewise, the fixing material 7 extruded from an extrusion groove 5 in the washer is extruded onto a fastening material and converted to a binder to be a loosening preventer. The exposure of the binder allows the visual confirmation of the completion of fastening. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a bolt, a washer, a nut related to an inner washer and a nut used for fastening a fastening material, and a method related to fastening.

In the tightening work of bolts, washers, and nuts, in order to securely and securely tighten the fastening material, for the purpose of quality control, great efforts have been made to forget to tighten and prevent loosening. There was no method, and the tightening confirmation work was a very difficult work among many work, and simplification was desired.

JP-A-2005-140314 JP 2001-012441 JP 2001-012429 A

A method of extruding a fixing agent of the present invention, a method of extruding a plasticizer and a gel agent, and a fastening method, wherein the plasticizer and gel agent described in JP-A-2005-140314 are mounted in a recess between two washers. Although the confirmation is the same, plasticizers and gels are used for visual purposes only, but the adhesive of the present invention has two purposes: visual inspection and loosening prevention. The mounting of the fixing agent of the invention is the one that is mounted in the depression of one plate. The method of extruding the fixing agent is different, and the completion of fastening can also be confirmed.

In the nut described in JP-A-2001-012441, a thing using a circular hole is described, but this is a thing into which a washer member enters, and is a thing different from the penetration groove of the fixing agent of the present invention. Japanese Patent Laid-Open No. 9-07926 describes a nut provided with a groove to prevent loosening. The reason is to increase the coefficient of friction and prevent loosening by attaching the groove. It is different from the present invention, not for the purpose of penetration and for reinforcing the adhesion.

As described in JP-A-2001-012429, a colorant is loaded into the gap between the nut and the washer, and the connecting member is broken by tightening the nut and the washer, and the colorant is pushed out to color the periphery of the nut to complete the tightening. Although the present invention has been confirmed, in the present invention, a fixing agent is attached to the recess of the washer, the fixing agent is worked by tightening the nut, and the pushing pressure acts on the fixing agent by the nut and the fastening material. This is different from Japanese Patent Application Laid-Open No. 2001-012429, in which the completion of tightening can be visually confirmed by being extruded, and the locking is also prevented by fixing the washer and the nut.

In order to securely fasten the fastening materials, there is no definitive simplification method for forgetting tightening and preventing loosening for quality control, and all the work is piled up one by one.

There are many tightening work for fastening materials using bolts, nuts, and washers in various industries, but the confirmation work for forgetting to tighten after fastening the fastening materials is a very difficult work condition. Therefore, labor saving of confirmation work is an important issue because it takes a lot of time for confirmation work.

There is nothing to show the tightening torque range of the nut and washer, which shows the tightening torque range required by the fastening material, and the use of the nut and washer with insufficient tightening force causes loosening of the tightening over time. However, failure and accidents due to that are important. Preventing loosening of bolts, nuts and washers is an important issue.

For quality control of the fastening work of the fastening material, there was no thing that could be confirmed at a glance forgetting to tighten, and in order to prevent loosening, secondary parts such as using a split pin and applying paint thickly to prevent loosening, etc. A simple method was used, and there was no simple method to prevent forgetting to tighten and to prevent loosening.

As shown in FIG. 6 (enlarged view of the circled portion in FIG. 2), the cross section of the washer, the washer 1 with the fixing agent 7 attached to the recess, the extrusion groove 5 of the fixing agent 7 and the extrusion hole 4 By using the washer provided,
The fixing agent intrusion groove 10 shown in FIG. 3 is used by using a nut 9 with an adhering agent intrusion groove provided on the seating side, the nut is tightened with a tightening wrench, and the washer is pressurized, so that the adhering agent 7 becomes the intrusion groove 10 on the nut side. As shown in Fig. 7, the fixing agent 7 extruded from the washer extrusion groove 5 is extruded onto the fastening material, thereby fastening. Can be confirmed visually.

Usage Example The extruded adhesive 7 is extruded onto the fastening material from the washer extrusion groove 5 shown in FIG. 7 to become the adhesive 18, and the adhesive extruded from the extrusion hole 4 of the washer 1 is By entering the intrusion groove 10 of the nut 9, it is possible to prevent loosening by the following. In the washer and fastening material, the washer fixing groove 7 and the fastening material 15, or in the washer and nut, the washer The sticking agent 7 enters the sticking agent intrusion grooves 10 and 10 'of the nut 9 from the sticking agent extrusion hole 1 of the nut 9, and the sticking agent 7 changes in quality with the sticking agent 18 and adheres with time, thereby preventing the loosening. I can plan.

By fastening the fastening material 15 by using a combination of the nut of claim 3, the washer of claim 4 and the bolt, and fastening the fastening material 15, the fastening agent 7 extruded from the sticking agent extrusion groove 5 of the washer 1 is visually checked. After the confirmation and fastening, the extruded sticking agent 7 becomes the sticking agent 18 with the passage of time, and the sticking is prevented from being loosened by fixing and the problem of loosening is solved.

Example of use As shown in Fig. 7, the adhesive 7 is extruded onto the fastening material 15 from the adhesive extrusion groove 5, so that the completion of fastening can be visually confirmed by the adhesive 7 and labor saving of important problems can be achieved. Will be achieved.

As shown in FIG. 9, the fixing agent 7 enters the nut seating side intrusion grooves 10 and 10 ′ from the fixing agent extrusion hole 4 of the washer 1, and the fixing agent extrusion hole 4 of the washer 1 and the penetration of the nut there. While fixing between the grooves 10 and 10 ′ and reinforcing the fixing of the washer 1 and the nut 9 in the intrusion groove 10 ′, the fixing agent 7 extruded from the fixing agent pushing groove 5 of the washer 1 is bonded to the washer 1. It adheres to the fastening material 15 and becomes a fixing agent 18, which acts to prevent the washer from rotating and prevents it from loosening, thereby preventing loosening of fastening which is an important issue.

By fastening the fastening material with the combination of the nut of claim 3, the washer of claim 4 and the bolt, fastening quality control can be performed only by visual observation, and fastening work can be performed. Labor management is achieved.

The fixing agent used in the present invention refers to a plasticizer, a gel agent, and the like containing an adhesive, and a substance that changes in quality and solidifies or semisolids over time.

The recess 6 provided in the washer 1 is for mounting the fixing agent 7.

The fixing agent pushing groove 5 and the fixing agent pushing hole 4 provided on the washer 1 are tightened with bolts and nuts so that the washer 1 receives pressure from the bolt and nut to become flat, and the washer 1 is depressed. The adhesive 7 attached to 6 is extruded from the recess 6 of the washer 1 through the adhesive extrusion groove 5 and the adhesive extrusion hole 4.

The adhesive 7 to be attached to the washer 1 encloses an adhesive in the microcapsule, the microcapsule is broken by the clamping pressure, is released into the plasticizer or gel, changes in quality, and solidifies together with the plasticizer or gel. Alternatively, it refers to a semi-solid material, etc., and even if it is not encapsulated in a microcapsule, the adhesive referred to here is a pressure sensitive adhesive as shown in Japanese Patent No. 386572, or a plasticizer,
These plasticizers that can be used in adhesive formulations to provide wetting action and / or viscosity control are well known to those skilled in the art, so the adhesive referred to here is mixed with plasticizers and gels. It is possible to use it, and it can be semi-solidified to visually confirm the completion of tightening, and can be used as a locking device.

In order to prevent the fixing agent 7 from being deteriorated by contact with the air, the fixing agent 7 is packaged with a vinyl film or a resin film, and the packaging is performed immediately before being attached to the fastening bolt together with the washer 1. Take out and use more.

3 and 4, the bolt 14 and the nut 9 are used to fasten the screws to the washer 1, and the extrusion pressure to the adhesive 7 causes the adhesive agent intrusion hole 4 of the washer 1 to The fixing agent 7 is extruded, and a plurality of fixing agent intrusion grooves 5 are provided so that the adhering agent 7 enters the seating side fixing agent intrusion groove 10 of the nut 9.

The washer 1 and the fixing agent 7 according to claim 1 and claim 2 are integrated and packaged with a resin film such as a vinyl film to prevent deterioration of the fixing agent and immediately before the washer 1 is attached to the fastening bolt. Take out and use more.

When the bolt is tightened, the completion of the fastening is visually observed with the adhesive 7 extruded from the extrusion groove 5 in FIG. 7, and the adhesive 7 in FIG. 8 is altered to become the adhesive 18, thereby preventing the washer from loosening. Also, the fixing agent 7 extruded from the extrusion hole 4 in FIG. 9 enters the fixing agent reinforcing intrusion groove from the intrusion groove 10 to 10 ', becomes the fixing agent 18, and is a method for preventing the nut from loosening, or FIG. As shown in Fig. 4, the fastening is performed to indicate the completion of fastening.

In the present invention, nuts and washers are used in operations for assembling and the like at every production site such as manufacturing, construction, and machinery industries.

Top view of the washer Figure 1 is a cross-sectional view of the washer AA. Is a top view of a nut Figure 3 is a cross-sectional view of the nut taken along the line BB Indicates the completion of fastening with a washer and nut, but excluding the description of sticking agent extrusion Is an enlarged view of the circle in FIG. Is an example of use with visual inspection of fastening Is fixed after fastening Represents the relationship between the washer and nut in the tightened state, and the fastening material and the fixing agent. In order to represent the relationship between the nut and the washer and the fastening material, each gap is intentionally represented, and Description is omitted. Is a top view of the adhesive Is a cross-sectional view of the adhesive C-C in FIG. Is a plan view of a washer and adhesive in film form and in a packaged form 12 is a cross-sectional view taken along the line DD in FIG. Is an enlarged view of the circled portion in FIG.

Explanation of symbols

1. Washer
2. Washer outer bend line 3. Washer inner bend line
4. Sticking agent extrusion hole
5. Sticking agent extrusion groove
6. Recess for mounting adhesive
7. Sticking agent
8. Washer bolt passage hole 8 ', adhesive agent bolt passage hole 9, adhesive agent entry groove nut
10, nut fixing agent intrusion groove 10 'nut fixing reinforcement intrusion groove 11, nut hole
12. Represents penetration of adhesive into the nut. 13. Nut thread.
14, bolt 15, fastening material
16, plain washer 17, bolt thread
18. After the extrusion, the adhesive agent 19 that has changed in quality and solidified or semi-solidified after the extrusion, the top of the nut
20 represents the washer extension line 21 represents the washer extension line cut
22 represents extension line cutting of fastening material
23, a gap 24 intentionally shown in drawing drawing, a bolt passage hole 25 of a fastening material, a film 26 in which a washer and a fixing agent are integrated or packaging only the fixing agent, and an extension line cutting of the fixing agent.

Claims (5)

A washer provided with a plurality of fixing agent extrusion grooves and extrusion holes, and a recess for mounting the fixing agent. A fixing agent to be attached to the recess of the washer according to claim 1. Nuts with multiple adhesive penetration grooves. A washer comprising the washer according to claim 1 and the fixing agent according to claim 2 attached thereto. The bolt, the nut of claim 3 and the washer of claim 4 are used to fasten the fastening material. At the time of fastening, the fixing agent of the washer is extruded from the extrusion groove or the extrusion hole by the fastening pressure of the fastening. Also, a fastening method in which the completion of fastening and loosening prevention can be confirmed by visually checking the adhesive.

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