JPH06307426A - Fastening mechanical element set and connection of the same - Google Patents

Abstract

PURPOSE:To provide fastening mechanical element set and connection method of the same with which a male screw body, a fastening member and a female screw body are temporarily screwed, while transportation, maintenance and field workability are improved. CONSTITUTION:A male screw body 1, a fastening member 2, and a female screw body 3 are provided. A through-hole of the fastening member 2 is formed by deforming an engagement edge 8 engaged with a screw portion 5 of the male screw body 1. The through-hole of the fastening member 2 is pierce by the screw portion 5 of the male screw body 1 and the screw portion 5 is engaged with the engagement edge 8. A seat surface 3b and the surface of the fastening member S are fastened to each other by means of the female screw bode 3 screwed with the screw portion 5. The male screw body 1, the fastening member 2, and the female screw body 3 are integrated with each other by screwing. At the time of fastening, temporary fastening and positioning are enabled. Fastening operability and handlebility are improved. Loosening can be easily performed only by loosening the female screw body. It is thus possible to facilitate field work, improve economic performance while reducing kinds of parts, and facilitate maintenance and stock management.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fastening machine element set and a joining method for fastening machine elements used for assembling or connecting articles.

[0002]

2. Description of the Related Art Conventionally, in order to assemble or connect articles, fastening with a fastening body such as bolts and nuts has been generally used. Various washers are used together with bolts and nuts for the purpose of abutting a wide surface when it is unstable or weak, and for supporting the bolt head and nut when the bolt or nut holes are large.

This washer is shown in FIG. 10 (a) in order to improve workability in transportation and storage during distribution or in fastening.
As shown in Fig. 10, the lower part 21 of the bolt 20 is lifted up by rolling or the like, and the washers 23 and 24 are fitted to the part having a smaller diameter than the screw part 22, or as shown in Fig. 10 (b). As described above, it may be integrated with the bolt 20 to be used by caulking it to the seat surface 26 of the bolt head 25.

Further, as shown in FIG. 11, a washer 26 (including a combination of spring washers (not shown), etc.) is inserted into the threaded portion 22 of the bolt 20 having a predetermined length, and the nut 27 prevents the washer 26 from falling off. The nut 27
Is used by removing it from the screw portion 22.

However, in the case shown in FIG. 10 (a), since the number of steps for rolling the bolt 20 is increased, the product cost is so high that it cannot be offered to the market at a low price, and the washer 23 , Each time the combination of 24 changes, the mechanical jig is also replaced, so the work is troublesome, and the neck portion 21 made thin is not strong enough for stable fastening, and the screw portion 22 Since it does not exist, it cannot be used for fastening thin attachment members.

Further, in the case shown in FIG. 10 (b), the washer 23 is
Since it is temporarily fixed to the bolt 20 by caulking, the bolt
Due to burrs or the like generated in the washer 23 during press forming as the 20 rotates, when the front and back of the washer are not selected, a scratch is left on the mounting member surface when tightened.

In particular, these above-mentioned things cannot be replaced with another type of washer for fastening use.
In other words, since this washer cannot be removed from the screw part, it is uneconomical because it is necessary to prepare a bolt washer set of another type according to the purpose of use and its location, and it is difficult to store and manage inventory. .

Further, in the set state shown in FIG. 11, since the washer 26 moves the screw portion 22 arbitrarily, when the nut 27 and the washer 26 are detached during use, the state in which the both 26, 27 are separated In addition to being often inconvenient to handle,
When the nut 27 is removed, the washer 26 may be dropped and the workability is poor.

Further, since the nut 27 and the washer 26 attached to the threaded portion 22 of the bolt 20 can freely move the threaded portion 22, if this set is used for a construction anchor or the like, the washer is
Since pre-positioning with 26 and nut 27 is not possible,
After driving the anchors, the distance between them must be adjusted.

Moreover, headless bolts such as stud bolts, anchor bolts and stud bolts not shown are
The washer 26 cannot be attached to the washer 26 because it has fallen out, and the washer 26 cannot be integrally fixed to the screw portion 22 unless the washer 26 is caulked and fixed to the nut 27.

Furthermore, since the washer itself cannot temporarily temporarily fix the bolt to the threaded portion, the washer will fall from the threaded portion as it is when the nut is screwed in a downward posture. . In addition, when tightening in places where it is difficult to reach or where the work posture is poor,
It puts a heavy labor burden on workers and is not desirable in terms of occupational health. Etc. have various problems.

[0012]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and is composed of a male screw body, a fastening member and a female screw body, and the through hole of the fastening member is formed in the male screw body. A locking edge that engages with the threaded portion is formed by deformation processing, the through hole of the fastening member is inserted into the threaded portion of the male screw body, and the locking edge is engaged with the threaded portion. The seat surface and the fastening member surface are fastened to each other by a threaded body for screwing into the portion, and the male threaded body, the fastening member and the female threaded body are integrally screwed together to form a male threaded body and a fastening member. It can be temporarily fixed to the female screw body and positioned to improve workability in transportation, storage, and on-site work. In particular, a fastening member for a male screw body without a head and an integral screw body can be integrated. Optimal fastening machine element set and fastening machine element connection It is an object to provide a method.

[0013]

Means for Solving the Problems The means of the present invention for achieving the above object comprises a male screw body provided with a threaded portion and a through hole having a diameter larger than the screw diameter of the male screw body, A locking edge formed by deforming this portion into this through hole is screwed into a fastening member that engages with the threaded portion of the male threaded body and the threaded portion of the male threaded body to form the seat surface and the male threaded body. A side surface of the fastening member engaged with the threaded portion of the fastening member, and a fastening machine element set including the male screw body, the female screw body for integrating the fastening member and the female screw body with each other. is there.

Further, the method of setting in the above-mentioned structure is such that the through hole of the fastening member having the through hole having a diameter larger than the screw diameter of the male screw body is engaged with the thread portion of the male screw body. The through hole is deformed so that the edge is formed, and the through hole of the fastening member is pushed through the threaded portion of the male screw body to engage the locking edge with the threaded portion. , The female threaded body is screwed into the threaded portion of the male threaded body, and the seat surface and the fastening member surface are fastened together to integrate the male threaded body, the fastening member and the female threaded body.

After the male screw body, the fastening member and the female screw body are integrated with each other, the engaging position of the fastening member with respect to the thread portion is changed by the screwing of the male screw body or the female screw body, and the fastening member It is also possible to allow movement in the threaded portion.

A fastening member is provided between the fastening member provided on the threaded portion of the male screw body and the female screw body so that the male screw body and the fastening member and the mounting member and the female screw body are integrated. Machine element sets and joining methods may also be employed.

[0017]

The present invention configured as described above has the following operations.

By deforming the through hole in the fastening member such as a washer, a locking edge that engages with the threaded portion of the male screw body is formed.

The engaging edge of the through hole is screwed or engaged and loosely engaged with the threaded portion of the male screw body to provide a simple temporary fixing in which the fastening member and the male screw body are coupled and held.

In this state, when the female threaded body is screwed into the threaded portion of the male threaded body and the seat surface of the female threaded body and the fastening member surface are tightened, the fastening member is rotated by the rotational force of the female threaded body. Tries to rotate along with each other, but its locking edge bites further into the thread portion of the male screw body, and movement in the axial direction and the circumferential direction is suppressed.

Further, when the female screw body is rotated, the contact surface of the fastening member, which has stopped moving, and the seating surface of the female screw member come into contact with each other in part or in whole, and then they are tightened to stop the movement of the female screw member. To be done.

Therefore, the male screw body, the fastening member and the female screw body are integrated by screwing, and so-called temporary fixing is performed so that the three members do not move easily.

This operation has the same effect even if the mounting member is sandwiched between the fastening member and the female screw body, and the male screw body and the fastening member and the mounting member and the female screw body are connected to each other. Can be integrated.

In particular, the so-called positioning can be easily performed, in which the male screw body can be screwed by tightening the fastening member and the female screw body at a desired position of the threaded portion.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a fastening machine element set and a fastening machine element connecting method according to the present invention will be described with reference to the drawings.

As shown in FIG. 1, the fastening machine element set A of the embodiment of the present invention is basically a male screw body 1.
And a three-member configuration including the fastening member 2 and the female screw body 3, or a four-member configuration including the mounting member 4 held between the fastening member 2 and the female screw body 3.

However, the mounting member 4 may be composed of a plurality of members such as metal parts.

This set A is used for assembling or connecting articles, and these three members 1,
It is distributed, stored or used in a set state of 2, 3 or the mounting member 4, that is, in an integrated state where positioning and temporary fixing are performed.

As the above-mentioned male screw body 1, any one can be used as long as the screw portion 5 having a predetermined pitch is formed on the outer periphery thereof. For example, as shown in FIG. 1 (a), a metal or synthetic resin having a head 6 at one end, or a commonly used bolt (including a screw) formed of another material is suitable. It is also possible to use a screwless one without the shaft portion 1a (full screw).

As another example, a headless stud bolt 1 as shown in FIG. 1 (b) or a stud bolt not shown, a post-installed anchor 1 as shown in FIG. 1 (c),
A headless full screw bolt 1 as shown in Fig. 1 (d), and Fig. 1
The anchor bolt 1 and the like as shown in (e) can be used, and there is no particular limitation on the shape, type, screw pitch, or place of use.

Further, as shown in FIG. 1 (f), a coiled spring having a screw portion 5 on the outer circumference can be used.

The above-mentioned fastening member 2 is connected to the male screw body 1 and the female screw body 3 to attach a mounting member (not shown) made of construction / building materials, electric / automobile parts, metal fittings, or components of articles. When connecting in a tightened state, it is sandwiched between the male screw body 1 and the female screw body 3, and one side surface thereof is the bearing surface 1b of the male screw body 1 or the bearing surface 3b of the female screw body 3, and further The side surface is in contact with the mounting member surface.

The form is as shown in FIGS. 2 (a) to 2 (e), which is a conventional (including a special mode) flat (including wavy) washer, or FIG. 2 (f). A spring washer as shown, or as shown in FIG. 4, fittings and components of articles appropriately used in various industries, assembly of electric / automobile parts, and structures such as buildings and their accessories, boxes It is used in a wide range of fields such as components for assembling shaped cases, furniture, etc., or packing (not shown) made of metal, non-ferrous metal or synthetic resin.

Furthermore, as the fastening member 2, as shown in FIG. 3, a pipe (including a split pipe) formed in a cylindrical shape can be used.

Then, in place of the fastening members 2, a substantially perfect circle or an ellipse having a diameter slightly larger than the outer shape of the screw portion 5 of the male screw body 1 described above, and an irregular corner / circle or jagged. A through hole 7 formed at the edge or the like is provided.

Before the fastening member 2 is joined, an arbitrary pinching force such as roller hooking, pressing, punching or vise is applied to the peripheral portion of the through hole 7 or the entire surface or a part of the surface of the fastening member 2. Punching or pressing means (not shown),
Further, the deformation processing is performed by the pressing force applied from the outer edge toward the inner side.

In the case of the spring washer, the wire material may be formed at the same time when the material itself of the wire material is formed or when it is wound into a coil in the washer forming process.

This deformation process causes the fastening member 2 to bend, distort,
By twisting or bending, the through hole 7 is formed as a narrow hole b narrower than the original hole, and the locking edge 8 is formed at this position, or the peripheral edge of the through hole 7 in the fastening member 2 is pressed. The locking edge 8 that is hit by the
To form.

Further, in the case of a spring washer or the like, it may be caused by the entire strain when wound in a coil shape.

More specifically, as shown in FIGS. 2 (a) and 2 (b), it is curved, or as shown in FIG. 2 (c), it is twisted, or as shown in FIG. 2 (d). Then, the corrugated shape is processed, or the concave shape is processed as shown in FIG. 2 (e).

Further, in the case of the pipe-shaped fastening member 2 shown in FIG. 3, the locking projecting inward by squeezing or pressing from the outside at the both ends or one of them, or the intermediate portion. The edge 8 is formed, and the end face portion may be further processed by means such as pressing.

When the fastening member 2 is a flat washer or a metal object, it may be curved when punching the washer 2 or the like, and at that time, the through hole 7 is formed in a plate-like shape. In some cases, the locking edge 8 having an acute angle may be formed on one side edge thereof, so that the washer can be manufactured and the locking edge 8 can be formed in the same step, thus improving workability.

The locking edge 8 of the through hole 7 formed by punching, winding or the like is shown in FIG. 5 as another example.
As shown in FIG. 5 (a), the taper is inclined, or as shown in FIG. 5 (b), it is formed into a stepped shape, or as shown in FIG. At the time of forming the through hole 7, a natural burr may be formed by punching with a press, or the inner edge may be formed into a spear shape as shown in FIG. 5 (d). , Fig. 5 (e) ~
The shape and the like shown in (h) can also be adopted, and any shape can be adopted as long as it can be engaged with the male screw body 1.

The locking edge 8 may be formed at one place or one side of the through hole 7 as shown in FIG. 5 (i), or on the front and back sides as shown in FIG. 5 (j). It may also be formed against each other.

In addition, the above-mentioned bending or bending or twisting,
As shown in FIG. 6 (a), the distortion or the like may be processed in an arc shape, an inverted C shape (the same is true for a normal C shape), or FIG.
As shown in (b), a step is provided on the opposite side having a V shape, or one is inclined upward or downward as shown in FIG. 6 (c). Since the bolt inserted into the hole 7 may be obliquely engaged, the engaging edge 8 does not have to be securely screwed into the threaded portion 5 when performing a simple temporary fixing. Also, the periphery of the through hole 7 may be raised as shown in FIG. 6 (d), or only one side may be formed as shown in FIG. 6 (e).

The through hole 7 provided in the fastening member 2 is
As shown in FIGS. 7 (a) and 7 (b), it is provided so as to be eccentric with respect to the fastening member 2, or as shown in FIG.
As shown in (d), it may be provided in a slit shape, and if the through hole 7 is eccentrically provided, the engagement edge 8 and the threaded portion 5 are naturally engaged due to the eccentric gravity and fall off. It gets harder.

Next, in the formation of the fastening machine element set A in the embodiment of the present invention, the male screw body 1 and the fastening member 2 are coupled by engaging, screwing and loosely coupling as described above. Of these, the case of engagement and loose engagement will be described.

When the fastening member 2 is brought into contact with the threaded portion 5 of the male screw body 1 and the through hole 7 is inserted therethrough, as shown in FIG. , Male thread 1
The engaging edge 8 is engaged with the thread of the threaded portion 5 and is attached so that it cannot be easily disengaged by the weight of the fastening member 2 or forced pulling.

However, as shown in FIG. 8 (a), this phenomenon is caused by the fact that the fastening member 2 mounted on the screw body 1 with its curved convex portion facing upward has its mounting posture on the screw portion 5. Since it is stable with respect to the downward movement, it moves without being relatively affected by the resistance by the locking edge 8 and the screw portion 5 when it is dropped downward.

On the other hand, as shown in FIG. 8 (b), the fastening member 2 attached to the screw body 1 with its curved convex portion facing downward is unstable in its mounting posture with respect to the screw portion 5. As a result, the center of gravity moves, and the curved edge is inclined to either the right or left, so that the locking edge 8 further digs into the thread of the screw portion 5, and it is difficult to receive a large resistance against a downward drop.

Then, in this state, when the female screw body 3 is screwed into the screw portion 5 of the male screw body 1 and the seat surface 3b of the female screw body 3 and the fastening member 2 surface are tightened by hand, Although the fastening member 2 tries to rotate together with the rotational force of the female screw body 3, the locking edge 8 thereof further penetrates into the thread portion 5 of the male screw body 1 to move the fastening member 2 in the axial direction and the circumferential direction. Is suppressed.

At this time, the fastening member 2 may be pressed or rotated against the seat surface 3b of the female screw body 3 to tighten the female screw body 3 and the fastening member 2.

Further, when the female screw body 3 is further rotated, as shown in FIG. 9, the contact surface of the fastening member 2 which has stopped moving and the seat surface 3b of the female screw body 3 come into contact with each other in part or in whole. Then
Eventually, the tightening is stopped and the movement of the female screw body 3 is also stopped. The so-called fastening member 2 and the female screw body 3 are in a double lock state, and the male screw body 1, the fastening member 2 and the female screw body 3 are integrated. As a result, so-called temporary fixing is performed in which the three members 1, 2, 3 do not move easily.

At this time, if the fastening member 2 is set at a desired position with respect to the screw portion 5, the positioning of the fastening member 2 with the female screw body 3 is easy and reliable even in a large amount of setting work. To be done.

In separating the three members 1, 2, 3 from each other, the fastening member 2 and the female screw body 3 are easily separated from each other simply by loosening the female screw body 3 screwed to the male screw body 1 by hand. Can be taken out individually.

Next, an example of a four-member structure of the male screw body 1 and the mounting member 4 held between the fastening member 2 and the female screw body 3 will be described.

In this example, the mounting member 4 is, for example, a spring washer or the like, as shown in FIG. 1 (c).
In addition to this, for example, when used in the construction industry, building materials such as fittings, or composites of building materials such as spring washers and fittings are used in combination, especially articles. The members and members are not limited.

When a spring washer is used for this mounting member 4, when the female screw body 3 is screwed and pressed against the surface of the fastening member 2, the surface of the fastening member 2 is inclined by the twist of the spring washer. Therefore, the engagement of the male thread 1 of the locking edge 8 into the threaded portion 5 is good, and the four members 1, 2, 3, 4 are more reliably integrated.

Furthermore, after the male screw body 1, the fastening member 2 and the female screw body 3 are integrated and temporarily fixed, the male screw body 1
When the female screw body 3 is further screwed, the tightened locked state by the fastening member 2 and the female screw body 3 is locked by the fastening member 2 engaged with the screw portion 5 of the male screw body 1. The edge 8 is lifted up and released from this thread, so that the locking edge 8 of the fastening member 2 moves to the next thread.

In particular, when the fastening member 2 is curved in an arc shape, it is in contact with the seat surface 3b of the female screw body 3 and is partially in contact with the bulging portion. Changes smoothly, and the engagement and disengagement of the locking edge 8 with the threaded portion 3 is relatively favorably performed.

Therefore, the fastening member 2 is movable in the threaded portion 5 of the male screw body 1, and the movement of the fastening member 2 is prevented from being hindered by the entanglement of the fastening member 2 with the threaded portion 5. It is what is done.

Further, when the female screw body 3 is screwed, the screw portion 5 is moved together with the fastening member 2.
When the locking edge 8 of is engaged with the threaded portion 5 so as to be screwed,
The contact surface of the fastening member 2 and the seat surface 3b of the female screw body 3 are in contact with each other in part or in whole, and the two and 3 are tightened together.
The fastening member 2 and the female screw body 3 are in a double lock state, and the male screw body 1, the fastening member 2 and the female screw body 3 are integrated again, and this operation continuously occurs in the screw portion 5. I will get it.

It is needless to say that the above-mentioned screwing is the same even when the male screw body 1 is rotated and the female screw body 3 is fixed.

[0064]

As described above, according to the present invention, the fastening member inserted into the thread portion of the male screw body is screwed into the female screw body by
Since it can be temporarily fixed to the male screw together with the fastening member or the mounting member by a simple operation of pressing the seat surface, the workability, handling, and distribution at the time of fastening the member are integrated. Therefore, the management is good.

The fastening member, the female screw body, and the male screw body can be easily separated from each other by simply loosening the female screw body. Therefore, even if the type of the member to be used is changed, the member can be immediately replaced in the field. Since it is not necessary to prepare a large number of male screw bodies, fastening members, and female screw bodies for each work, it is economical, and its storage and inventory management are space-saving and easy.

Particularly, in the set of the present invention, the fastening member is securely screwed to the male screw body having no head portion, and the fastening member falls even if the screw portion not on the head side is directed downward. Therefore, it is effective not only for general fastening work but also for work in places where it is difficult to reach, and moreover, by tightening the fastening member and the female screw body, Both can be positioned for attachment in arbitrary positions. It has special effects such as.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view showing each example of a fastening machine element set according to the present invention.

FIG. 2 is a perspective view showing each example of a fastening member in FIG.

FIG. 3 is a cross-sectional view showing a coupled state using a fastening member of another example in FIG.

FIG. 4 is a cross-sectional view showing another example in FIG.

FIG. 5 is a partial cross-sectional view showing another example of the locking edge of the through hole in the fastening member.

FIG. 6 is a cross-sectional view showing each example of the fastening member in FIG. 1 in a curved, distorted, bent or twisted state.

FIG. 7 is a plan view showing still another example of FIG.

8 is a cross-sectional view showing a state in which the fastening member is engaged with the male screw body in the fastening mechanical element set in FIG.

9 is an enlarged cross-sectional view of a main part showing an integrated state of the fastening mechanical element set in FIG. 1, (a) shows a case where the fastening member is a plain washer, and (b) shows a case where the fastening member is a spring washer. Are shown respectively.

FIG. 10 is a front view showing each example of a set state of a conventional bolt and washer.

FIG. 11 is a front view showing a set state of still another example in FIG.

[Explanation of symbols]

 1 Male Threaded Body 2 Fastening Member 3 Female Threaded Body 4 Mounting Member 5 Threaded Part 7 Through Hole 8 Locking Edge 3b Seating Surface

Claims (5)

[Claims] 1. A male screw body provided with a threaded portion, and a through hole having a diameter larger than the screw diameter of the male screw body, and a locking edge formed in the through hole by deformation processing of the portion, A fastening member to be engaged with the threaded portion of the male threaded body, and a side surface of the fastening member that is engaged with the threaded portion of the male threaded body and engaged with the threaded portion of the male threaded body are tightened together, A machine element set for fastening, comprising: an external thread body, a fastening member, and an internal thread body that integrates the internal thread body. 2. The fastening machine element set according to claim 1, wherein a mounting member is provided between the fastening member provided on the threaded portion of the male screw body and the female screw body. 3. The through hole of the fastening member having a through hole having a diameter larger than the thread diameter of the male screw body is formed so that a locking edge for engaging with a threaded portion of the male screw body is formed. By deforming the portion of the hole, the through hole of the fastening member is pushed through the threaded portion of the male threaded body to engage the locking edge with the threaded portion, and the female threaded body of the male threaded body is threaded. A method of coupling a mechanical element for fastening, characterized in that the seat surface and the fastening member surface are fastened together by screwing, and the male screw body, the fastening member and the female screw body are integrated. 4. The through hole of a fastening member having a through hole having a diameter larger than the thread diameter of the male screw body is formed so that a locking edge for engaging with a threaded portion of the male screw body is formed. By deforming the portion of the hole, the through hole of the fastening member is pushed through the threaded portion of the male threaded body to engage the locking edge with the threaded portion, and the female threaded body of the male threaded body is threaded. In the method of coupling a mechanical element for fastening in which the seat surface and the fastening member surface are fastened by screwing together, and the male screw body, the fastening member and the female screw body are integrated, a male screw body and a fastening member are provided. After integration with the female screw body,
A fastening method of a fastening mechanical element, characterized in that an engaging position of a fastening member with respect to a threaded portion is converted by screwing of the male screw body or the female threaded body to enable movement of the fastening member in the threaded portion. . 5. A mounting member is sandwiched between a fastening member and a female screw body provided on the threaded portion of the male screw body to integrate the male screw body and the fastening member, and the mounting member and the female screw body. The method for connecting fastening mechanical elements according to claim 3 or 4, characterized in that.