JPS62259362A - Screw with guide washer and manufacture of the same - 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] [Industrial Application Field] The present invention relates to an improvement of a washer needle screw and an improved washer [Prior Art] A conventional washer needle screw has a washer that rotates on the neck of the screw body. The washer is a flat plate, and may be circular or rectangular.

In addition, as for the manufacturing force U of the conventional washer needle screw, a washer is inserted into the neck of the screw base material where the threaded portion has not yet been formed.

The threaded part is formed by rolling and the diameter of the threaded part is enlarged.

Generally, the washer is rotatably but irremovably fitted to the neck of the threaded part.

[Problems to be Solved by the Invention] However, in such a conventional technique, for example, as shown in FIG. When trying to screw the screw shaft B1 of B into the screw hole A1, the screw Bl swings, making it difficult to work, and the operator's attention is required when working in areas that are difficult for L to reach, resulting in fatigue. It's easy to make one work because the efficiency of one work is low! The question is that the cost is high! +! In addition, in the conventional manufacturing method for washer screws, for example, if the washer is U-shaped and the screw No. 1 (covers the head of the material), the head of the screw base material In order to hold the head of the screw material and to prevent the holding member from interfering with the U-shaped washer and deforming the U-shaped washer when adding the screw, the head of the screw base material is The problem is that only a part of the screw can be held, resulting in insufficient holding force and difficulty in threading, and that conventional manufacturing methods cannot be used for screws with special washers such as U-shaped washers. there were.

The present invention has been made in view of these conventional problems, and provides a washer screw with a simple structure and improved workability. It is an object of the present invention to provide a method for manufacturing a washer-resistant screw that can be adopted as a screw that requires a washer.

[Structure of the Invention] The gist of the present invention to achieve the above object is as follows.

A guide washer is rotatably but irremovably fitted to the 'H1 portion of the screw body, and the guide washer faces a guide wall in a direction parallel to the screw axis of the screw body. Insert the screw and the screw shaft of the screw body into the through hole of the guide washer, and then insert the screw shaft of the screw body. @1 part, press the guide wall of the guide washer in a direction perpendicular to the axis of the screw shaft of the screw body, deform the through hole of the guide washer, and rotate the guide washer around the neck of the screw body. The present invention relates to a method for manufacturing a guide washer screw, which is characterized in that the screw is fitted in a manner that is possible and irremovable.

[Function] During screwing, if the guide wall of the guide washer is guided by the guide groove provided near the screwing part, the screw shaft will move stably without wobbling, and the screw hole will move smoothly. It is screwed into the

In addition, in the method for manufacturing a guide washer screw, the through hole of the guide washer is deformed into a substantially elliptical shape, the minor axis of the elliptical through hole is made smaller than the outer diameter of the screw shaft, and the guide washer is fitted into the neck of the screw. It is something to wear.

[Example] Hereinafter, one embodiment of the present invention will be described based on the drawings.

1 to 7, 9 and 10 show an embodiment of the present invention.

The guide washer lO according to this example is shown in FIGS. 1 and 2.
As can be seen in the figure, a spring washer 30 and a guide washer 40 are attached to the neck portion 22 of the screw body 20 so as to overlap under L.

The screw body 20 has a head 21, a neck 22, and a threaded portion 23 formed in this order from the north, and a plus/minus groove is formed on the top surface of the head 21, and the outer diameter of the neck 22 is larger than the outer diameter of the threaded portion 23. It is formed smaller due to the screw thread.

The guide washer 40 is generally U-shaped. That is, the guide washer 40 has a seat portion 41 that is a surface perpendicular to the screw axis of the threaded portion 23 of the screw body 20, and guide walls 43.43 are erected from both ends 42.42 of the seat portion 41, respectively. Become.

As shown in FIG. 10, the fitting hole 44 of the seat portion 41 is formed in a substantially elliptical shape, and the minor axis of the fitting hole 44 is larger than the outer diameter of the neck portion 22 of the screw body 20 and the outer diameter of the threaded portion 23. is set smaller. That is, the guide washer 40 is attached to the screw body 20.
It is rotatably but irremovably fitted into the neck 22 of the.

The guide walls 43, 43 are provided facing each other, are each formed in a direction parallel to the axis of the threaded portion 23 of the screw body 20, and are in a parallel relationship with the guide walls 43, 43 phase η.

The method for manufacturing the guide washer screw 10 is shown in FIG. 9 and 1O.
As can be seen in the figure, this is a method using a press mold 50,
Due to the suppression F51.51 of the press die 50, the guide washer 40
Press the guide walls 43, 43 of the seat 41 of the guide washer 40.
The guide washer 40 is fitted into the neck portion 22 of the screw body 20 by deforming the fitting hole 44 of the screw body 20.

That is, the threaded portion 23 is formed on the screw body 20 in the oil, and the spring washer 30 is inserted up to the neck 22 of the screw body 20.
Insert it through.

The screw, the threaded part 23 of the main body 20 is guided by the seat part 41 of the washer 40.
into the fitting hole 44 of the screw body 20 until it reaches the neck 22 of the screw body 20. At this time, the fitting hole 44 is circular and loosely fits into the threaded portion 23 of the screw body 20.

The threaded portion 23 of the screw body 20 of the guide washer needle screw IO thus constructed is inserted into the positioning hole 53 of the positioning base 52 of the press mold 50. At this time, the guide wall 43 of the guide washer 40
．． 43 is the pressing surface 5 of the press mold 50 7-51.51
Insert the rod into 4 and 54 (the surface shown by the imaginary line in Figure 9) so that it does not fall down.

Furthermore, position the threaded portion 23 of the screw body 20 (insert it into the positioning hole 53 of the base 52, and
1 is brought into contact with the positioning surface 55 of the positioning base 52. As a result, the guide washer needle screw 10 is positioned by the positioning base 52 of the press die 50 in the same direction and perpendicular direction to the axis of the threaded portion 23 of the screw body 20.

Next, the pressing surface 5 of the pressing die 50 is
4.54, the guide wall 43° 43 of the guide washer 40 is pressed (the state shown by the solid line in FIG. 9), and the pressing force direction is perpendicular to the axis of the threaded portion 23 of the screw body 20. As a result, the fitting hole 44 of the seat portion 41 of the guide washer 40 is deformed and becomes approximately elliptical as shown in FIG. It is smaller than the outer diameter, so that the guide washer 40 is rotatably and irremovably fitted into the neck 22 of the screw body 20.

Next, the end f stand 60 using the guide washer needle screw 10 having the above configuration will be described.

As can be seen in FIGS. 4 and 5, the terminal block 60 has a similar structure (units) 70a, 70b, etc. arranged parallel to the combination rail 61 at both ends. presser foot planner) 62.62
They are assembled by pressing and holding them together.

The stand units 70a, 70b, . . . have similar structures, and FIG. 3 shows a cross section of one of them, 70a.

A terminal plate 81 is fixed to the center of the assembly 80 of the end f-board 60, and screw holes 82 and 82 are threaded in the end f-board 81.
Guide washer needle screws 10, 10 are disposed upward facing 2.82 and screwed into the screw hole 82, and the guide washer needle screws 10.1
A guide 1+■83.83 is formed on the combination 80 to allow the 0 to move upwardly and to hold it so that it does not come out. The guide walls 43° 43 of the guide washer 40 of the guide washer needle screw 10 are in sliding contact with the inner surface of the guide groove 83, so that the guide washer needle screw 10 is guided and movable in its axial direction via the guide washer 40. Retained.

Using such an end f stand 60, the wire end At of the electric wire A as shown in FIG. 6, the prototype terminal A2. Fork type end) A3
The case of sandwiching the objects will be explained below.

As shown in the right half of FIG. 3, the guide washer needle screw 10 connects the electric wire A with the tip of the threaded portion 23 of the screw body 20 screwed into the screw hole 82 of the end r-plate 81. They are in the abutting position without meeting.

Next, use a tool to expose the threaded portion 23 of the screw body 20 and push it L, so that the tip of the threaded portion 23 of the screw body 20 and the terminal/plate 8
1, a gap is formed into which the line end A1 of 'mvjA, etc. can be inserted.

Next, using a tool to push the threaded portion 23 of the screw body 20 (L) 1, guide the terminal A2 of the original form of the electric wire A into the gap directly below the threaded portion 23 of the screw body 20 of the washer needle screw 10. Insert it so that it is located at . Once inserted, the second tool is removed from the threaded portion 23 of the screw body 20, and the guide washer screw 10 falls due to its own weight. During this time, guide wall 4
3 and 43 are guided by the guide groove 83, so that the threaded portion 23 of the screw body 20 does not swing the screw shaft, and the guide washer needle screw 10 returns to the threaded hole 8 of the end E plate 81.
Contact with 3.

Next, hook the L tool into the plus and minus grooves of the head 21 of the screw body 20 of the guide washer needle screw 10, and
Rotate with a tool, and insert the guide washer needle screw 1 into the end fA2 of the master mold.
It is sandwiched between the seat portion 41 of the guide washer 40 of No. 0 and the terminal plate 81. During this time, the guide walls 43, 43 of the guide washer 40 are displaced by the guide groove 83, and the guide washer needle screw 10 is stabilized and screwed into the screw hole 82 of the end E plate 81.

When removing the end of the electric wire A, loosen the guide washer needle screw 10 that was fastened. When the guide washer needle screw 10 is loosened,
The guide wall 43 of the guide washer 40 moves upward while being guided by the guide groove 83, and the tip of the threaded portion 23 of the screw body 20 of the guide washer needle screw 10 comes out of the screw hole 82 of the end T-plate 81. Even in this state, the guide wall 43.4 of the guide washer 40
3 is positioned in the guide groove 83 and is stable. At this time, the center hole of the round terminal A2 is hooked to the tip of the threaded portion 23 of the screw body 20 of the guide washer needle screw 1o, and does not come off.

Next, a tool is inserted through the gap between the lower end of the guide groove 83 and the terminal plate 81, the tip of the tool is applied to the threaded portion 23 of the screw body 20 of the guide washer needle screw 10, and the guide washer needle screw 10 is pushed up. Thereby, the screw body 20 of the guide washer needle screw 10
A gap is created between the threaded portion 23 and the terminal plate 81, and the round terminal A2 is removed from the tip of the threaded portion 23.

Further, when the tool is removed from the threaded portion 23 of the screw main body 20 of the guide washer needle screw 10, the guide washer needle screw 10 drops due to its self-correction and returns to the screwed state.

Next, the guide washer needle screw 10 according to the present invention is attached to another terminal block 6.
I will explain what I used for 0a.

As can be seen in FIG. 7, the end f stand 60a is
4 is the same as the terminal block 60.

That is, it is adjacent to the guide groove 83 of the end f stand 60a.
A member 84 is provided, and the tire repellent member 84 projects inside the guide groove 83 and holds the guide washer 40 of the guide washer needle screw 10 in place.
A repelling locking portion 85 is provided, and a repelling locking portion 85 is provided.
lla 5 is the guide washer 40 of the guide washer needle screw 10.
A gap is formed between the tip of the threaded portion 23 of the screw main body 20 of the guide washer needle screw 10 and the terminal plate 81 when the wire is opened.

Using such a terminal block 60a, wire end Al of electric wire A, round terminal A2, etc. as shown in FIG. Fork type terminal A
The case where the third grade is sandwiched will be explained.

When using the terminal/base 60a, the elastic IF section 85 of the member 84 is connected to the guide washer 40 of the guide washer needle screw lO.
This is the same as when using the terminal block 60, except when the terminal block 60 is used. Therefore, the differences from the case where the terminal block 60 is used will be briefly explained.

Shape of guide washer needle screw 10 in [11) to connect electric wire A
Fi % is locked in the guide hand -10 guide whale 40 guide wall 43.43 Gin -repellent, 84 glue, pulsey repellent task, as shown in the right half of Fig. 7.

When a tool is inserted into the plus and minus grooves of the head 21 of the screw main body 20 of the guide washer needle screw 10 and the guide washer needle screw 10 is pushed in, the guide wall 43 of the guide washer 40 is exposed to the i ring member 84 and the repellent IF section. 85, resists the repelling force and overcomes the locking portion 85 of the ridge 111a. When the guide washer needle screw 10 is further pushed in, the guide walls 43 and 43 of the guide washer 40 move from one side to the glue 11 repelling member 84 glue i1 + L part 85 while being pressed by the guide groove 83. As a result, the guide washer needle screw 10 moves in the direction of the tapped hole 82 of the end f plate 81 without the axis of the threaded portion 23 of the screw body 20 swinging.

When the guide washer needle screw 10 is further pushed in, the tip of the threaded portion 23 of the screw body 20 of the guide washer needle screw 10 passes through the large terminal A2 of the electric wire A and comes into contact with the screw hole 82 of the terminal plate 81. During this period, the guide washer 40 of the guide washer needle screw 10 is pressed against the guide groove 83 and the spring 11 receptacle 85, so that the axis of the threaded portion 23 of the screw body 20 moves without wobbling. Once they are in contact, rotate the tool.

As the guide wall 43 of the guide washer 40 is rotated, the guide wall 43 of the guide washer 40 comes off the glue r repellent IF portion 85 of the ring member 84, and is guided into the guide groove 83 at the same time.

When removing the end of the electric wire A, loosen the guide washer needle screw 10 that was fastened, and the guide wall 43.4 of the guide washer 40 will be removed.
3 moves upward while being guided by the guide groove 83, and 9nI
It comes into contact with the elastic 1F portion 85 of the a member 84. When the guide washer needle screw lO is further loosened, the guide wall 43 of the guide washer 40 climbs over the tire repellent locking portion 85 of the repellent member 84 and is pressed against the reel 11 receptacle 1F portion 85. When the guide washer needle screw 10 is further loosened, the tip of the threaded portion 23 of the screw body 20 of the guide washer needle screw 10 is located at the end of the threaded hole 8 of the plate 81.
deviates from 2. Even in this state, the guide walls 43 and 43 of the guide washer 40 are bent at one end and the other end 1'IF of the spring member 84.
An external force is applied to the Ik locking portion 85 and the guide groove 83, and the guide washer needle screw 10 does not move downward and is stable.

Next, one tool is inserted through the gap between the lower end of the guide groove 83 and the terminal plate 81, and the tip of the tool is applied to the threaded part 23 of the screw body 20 of the guide washer needle screw lO, and the elastic member 84 glue i@ Push the guide washer needle screw 10 up against the pressing force of the locking part 85. When pushed further, the guide wall 43 of the guide washer 40 comes off the resilient member 84 from the resilient member 84, and at the same time, at that position, the guide wall 43 of the guide washer 40 is removed from the resilient member 84.
4, the glue 11 is locked so as not to fall by the soil-repelling portion 85, and the guide washer needle screw 10 returns to the state before screwing.

In the above embodiment, the guide washer 40 has a substantially U-shape, but is not limited to this shape.
It goes without saying that it is sufficient that the guide surface has a guide surface, and that the guide surface has a shape that allows the guide washer needle screw lO to be moved into a predetermined screw hole by swinging the axis of the screw shaft during screwing. do not have.

Moreover, in the manufacturing method of the guide washer needle screw 10.

Insert the guide washer needle screw 1 with the spring ring washer 30 at the base.
Although the step of inserting into the threaded portion 23 of the screw body 20 of No. 0 is set, a commercially available screw with a spring washer may be used without setting such a step.

Further, as a method of pressing the guide washer 40, a method using a press mold has been shown, but the method is not limited to this, and the seat portion 41 of the guide washer 40 can be pressed by pressing the guide washer 40 with another F stage. Any method that deforms the fitting hole 44 into a substantially elliptical shape may be used.

Moreover, the presser-50 is connected to the guide walls 43 and 43 of the guide washer 40.
Although the pressing method is not limited to the guide walls 43 and 43, other parts of the guide washer 40 are pressed so that the fitting hole 44 of the seat part 41 of the guide washer 40 is pressed. Needless to say, any part that deforms into a substantially elliptical shape is sufficient.

Further, the shape of the fitting hole 44 is not limited to a circular shape either.

[Effects of the Invention] According to the guide washer needle screw according to the present invention, the simple structure of providing a guide wall on the washer makes the screwing operation simple and quick, and the workability can be improved.

Furthermore, according to the method for manufacturing a guide washer needle screw according to the present invention, a specially shaped washer can be easily attached to the screw body.

[Brief explanation of drawings]

Figures 1 to 7, 9 and 10 are from K1y]
Fig. 8 shows a conventional example, Fig. 1 is a front view of the guide washer needle screw, and Fig. 2 is the same <
+Z side view, Figure 3 is a sectional view of the end F stand using a guide washer needle screw, Figure 4 is a side view of the stand unit, Figure 5 is a front view, and Figures 6 (a) and (b). ) and (C) are i
[More side views showing various ends of wires, Figure 7 is a sectional view of a terminal block using guide washer needle screws, Figure 8 is a sectional view of a terminal block using conventional screws with washers, Figure 9 The figure is a cross-sectional view showing the main part of the press die that presses the guide wall of the guide washer. It is a front view. 10... Guide washer needle screw 20... Screw body 21.
...Head 22...Neck 23...Threaded part
30... Tin ring washer 40... Guide washer 41... Seat portion 42... Both ends 43
... Guide wall 44 ... Fitting hole 50 ... Press mold 51 ... Suppression T-52 ... Positioning base 53 ...
...Positioning hole 54...Suppressing surface 55...Positioning surface 60.60a...End r one unit 70a, 70b.
... Stand unit 80 ... Combined 81 ... End P plate 82 ...
Screw hole 83...Guide groove 84...Ta l'
L Plucking member material 85 ... Tie plucking section [L section applicant Jonan Denki Seiki Co., Ltd.

Claims (2)

[Claims] (1) A guide characterized in that a guide washer is rotatably but irremovably fitted to the neck of the screw body, and the guide washer has a guide wall in a direction parallel to the screw axis of the screw body. Screw with washer. (2) Insert the screw shaft of the screw body into the through hole of the guide washer until the neck of the screw body, press the guide wall of the guide washer in a direction perpendicular to the axis of the screw shaft of the screw body, and A method for producing a screw with a guide washer, characterized in that the through hole of the guide washer is deformed, and the guide washer is rotatably but irremovably fitted to the neck of the screw body.