JP2006283937A - Plate-like bolt - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plate-like bolt capable of screw-fitting a nut into a plate-like screw part easily and smoothly and achieving practical use. <P>SOLUTION: This plate-like bolt 1 is formed by press-blanking a metallic plate. A plate-like head part 13 abutted and locked in an opening fringe part of a plate-like bolt hole 31 and the plate-like screw part 11 are integrally formed. A male screw thread 12 is formed on only a side end face on one side among both side end faces of the plate-like screw part 11. A part abutted and locked in the opening fringe part of the plate-like bolt hole 31 of a member 3 to be tightened in the plate-like head part 13 is formed into wedge-like inclined faces 13a, 13a. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a plate bolt.

  As a conventional plate bolt of this type, for example, as shown in FIG. 13, it is a plate bolt formed by press punching a metal plate, and is in contact with the opening edge of the plate bolt hole. There is known a structure in which a plate-like head portion 101 and a plate-like screw portion 102 to be stopped are integrally formed, and male screw threads are formed on both end faces of the plate-like screw portion 102 (for example, Patent Documents). 1).

Japanese Utility Model Publication No. 7-56452

However, the plate-like bolt of the conventional example has a structure as described above because male screw threads are formed on both side end surfaces of the plate-like screw portion 102 as described above.
That is, since the male thread formed by pressing cannot be formed into an arc like a normal male thread, both corners are gnawed with respect to the arc-shaped female thread, and the male thread relative to the female thread is Since it is close to surface contact, the rotational resistance of the male thread relative to the female thread groove of the nut is large, and it is very difficult to screw the nut to the plate-like screw portion 102, and there is a problem that it cannot be put into practical use.

In addition, when the pitch of the external thread is the same as that of a normal plate bolt, it is difficult to form a clean external thread by pressing, and the durability of the blade that shears the external thread in the press device There was a problem that there is a risk of lowering.
In addition, since the width of the external thread is small, there is a problem that press working becomes difficult if a metal having high hardness is used to increase the shear strength of the external thread.

  The problem to be solved by the present invention is to provide a plate bolt that can be put into practical use in which the nut can be easily and smoothly engaged with the plate screw portion.

  In order to solve the above-mentioned problem, the plate-like bolt according to claim 1 is a plate-like bolt formed by press punching a metal plate, and is composed only of a plate-like screw portion having no plate-like head. The male screw thread is formed only on either one of the side end faces of the plate-like screw portion.

  The plate-like bolt according to claim 2 is a plate-like bolt formed by press punching a metal plate, and a plate-like head and a plate which are brought into contact with and locked to an opening edge portion of the plate-like bolt hole. The threaded portion is integrally formed, and the male thread is formed only on one of the side end surfaces of the plate-like threaded portion.

  The plate-like bolt according to claim 3 is characterized in that, in the plate-like bolt according to claim 1 or 2, the pitch of the male screw thread in the plate-like screw portion is formed to be three times or more of the normal pitch. As a means.

  The plate-like bolt according to claim 4 is the plate-like bolt according to any one of claims 1 to 3, wherein the male screw thread is a round screw.

  The plate-like bolt according to claim 5 is the plate-like bolt according to any one of claims 1 to 4, wherein the metal plate is subjected to press punching and then subjected to quenching. It was.

  The plate-like bolt according to claim 6 is the plate-like bolt according to any one of claims 1 to 5, wherein the plate-like bolt is in contact with an opening edge of the plate-like bolt hole of the member to be fastened in the plate-like head. The part to be stopped is formed on a wedge-shaped inclined surface.

  In the plate-like bolt according to claim 1, as described above, the plate-like bolt is constituted only by the plate-like screw portion having no plate-like head portion, and the male screw is formed only on one of the side end surfaces of the plate-like screw portion. By adopting a configuration in which a thread is formed, the contact between the side end surface where the male thread is not formed in the plate-like thread portion and the female thread of the nut is a line contact, and the rotation of the male thread relative to the female thread groove of the nut as a whole Since the resistance is halved, the nut can be easily and smoothly engaged with the plate-like screw portion, thereby obtaining the effect that the plate-like screw can be put into practical use.

  In the plate-like bolt according to claim 2, as described above, the plate-like head portion and the plate-like screw portion that are brought into contact with and locked to the opening edge portion of the plate-like bolt hole are integrally formed. By adopting a configuration in which the male thread is formed only on one of the side end faces, the contact between the side end face where the male thread is not formed in the plate-like thread portion and the female thread of the nut is a line contact. As a whole, the rotational resistance of the male thread relative to the female thread groove of the nut is halved, so that the nut can be easily and smoothly engaged with the plate-like screw part, which enables the practical use of the plate-like screw. The effect of becoming.

  In the plate-like bolt according to claim 3, as described above, it is possible to form a beautiful male screw thread by press working by forming the pitch of the male screw thread in the plate-like screw portion to be three times or more of the normal pitch. It becomes possible to increase the durability of the blade portion that shears the male thread portion in the press device.

  In the plate-like bolt according to claim 4, as described above, the male screw thread is a round screw, so that the nut can be screwed into the plate-like screw portion more easily and smoothly, and the pressing device It becomes possible to further enhance the durability of the blade portion that shears the male screw thread portion.

  In the plate-like bolt according to claim 5, as described above, the quenching is performed after the metal plate is press-punched, thereby ensuring the ease of pressing, and the male thread of the plate-like bolt. The shear strength can be increased.

  In the plate-like bolt according to claim 6, as described above, the portion of the plate-like head that is abutted and locked to the opening edge of the plate-like bolt hole of the member to be fastened is formed on the wedge-shaped inclined surface. With this configuration, a plurality of reinforcing bars and the like can be fastened and fixed using a wedge-shaped inclined surface in combination with a clip body having a substantially U-shaped cross section.

  Embodiments of the present invention will be described below with reference to the drawings.

The plate-like bolt of Example 1 corresponds to the inventions described in claims 1 and 3 to 5.
First, the plate bolt of the first embodiment will be described with reference to the drawings.

FIG. 1 is a perspective view showing a plate-like bolt of the first embodiment, FIG. 2 is a cross-sectional view showing a screwed state of the nut, and in the figure, 1 is a plate-like bolt, and 2 is a nut.
More specifically, the plate-like bolt 1 of this embodiment is a plate-like bolt formed by press punching a metal plate, and is composed only of a plate-like screw portion 11 having no head, The male screw thread 12 is formed only on one of the side end faces of the both end faces of the plate-like screw portion 11.

The male screw thread 12 is formed as a round screw, and the pitch of the male screw thread 12 is three times or more of the normal pitch.
And this plate-like volt | bolt 1 is hardened after press-punching a metal plate.
The female screw groove 21 of the nut 2 is also formed as a round screw having the same pitch as the male screw thread 12.

Next, operations and effects of the first embodiment will be described.
In the plate-like bolt of the first embodiment, as described above, the plate-like bolt is constituted only by the plate-like screw portion 11 having no plate-like head, and either one of the side end surfaces of the plate-like screw portion 11 is formed on one side end surface. By adopting a configuration in which only the male screw thread 12 is formed, the contact between the side end surface of the plate-like screw portion 11 where the male screw thread 12 is not formed and the female screw thread 21 of the nut 2 becomes a line contact, and the nut 2 as a whole. Since the rotational resistance of the male thread 12 with respect to the female thread groove 21 is halved, the nut 2 can be easily and smoothly engaged with the plate-like screw portion 11, thereby enabling the practical use of the plate-like screw. The effect of becoming is obtained.

  Further, by forming the pitch of the male screw thread 12 in the plate-like screw portion 11 to be three times or more of the normal pitch, it becomes possible to form a beautiful male screw thread 12 by pressing, and the male screw thread in the press device. The durability of the blade portion that shears the 12 portions can be increased.

  Further, by making the male screw thread 12 a round screw, the nut 2 can be more easily and smoothly engaged with the plate-like screw part 11, and the blade part for shearing the male screw thread 12 portion in the press device can be used. The durability can be further increased.

  Further, the quenching process is performed after the metal plate is press punched, so that the shear strength of the male thread 12 in the plate bolt 1 can be increased while ensuring the ease of the press process.

  Next, another embodiment will be described. In the description of the other embodiments, the same components as those of the first embodiment are not shown, or the same reference numerals are given and the description thereof is omitted, and only the differences are described.

The plate-like bolt of Example 2 corresponds to the invention described in claims 2-5.
3 is a perspective view showing a plate-like bolt according to the second embodiment, FIG. 4 is a sectional view of the nut screwing state in use, and FIG. 5 is a sectional view taken along line AA of FIG.

In the plate-like bolt 1 of the second embodiment, a plate-like head 13 that is abutted and locked to the opening edge of the plate-like bolt hole 31 in the member to be fastened 3 is integrally formed at one end of the plate-like screw portion 11. This is different from the first embodiment.
That is, the plate-like bolt 1 of the second embodiment can obtain the same effects as those of the first embodiment as the plate-like bolt 1 having the plate-like head 13.

The plate-like bolt of Example 3 corresponds to the invention described in claims 2 to 6.
6 is a perspective view showing a plate-like bolt of Example 3, FIG. 7 is a sectional view of the nut screwed state in use, FIG. 8 is a sectional view taken along line BB of FIG. 7, and FIG. FIG. 10 is a process explanatory view showing another usage example of the plate bolt of the third embodiment.

In the plate-like bolt of the third embodiment, the portion of the plate-like head 13 that is abutted and locked to the opening edge of the plate-like bolt hole 31 of the member 3 to be fastened is formed on the wedge-shaped inclined surfaces 13a and 13a. This is different from the second embodiment.
Therefore, since the plate-like bolt of the third embodiment is configured as described above, a plurality of reinforcing bars 5 are utilized by utilizing wedge-shaped inclined surfaces 13a and 13a in combination with the clip body 4 having a substantially U-shaped cross section. , 6 etc. can be fastened and fixed.

  That is, as shown in FIGS. 9 and 10, this other use example is arranged with an interval in which the first reinforcing bar 5 and the second reinforcing bar 6 can be inserted, and the longitudinal width of the plate-like screw portion 11 on one side. a pair of parallel two-surface portions 41 and 42 each having a long hole 4a formed larger than h1 and smaller than a width h2 of the maximum width portion of the plate-shaped head 13, and a plate-shaped bolt hole 4b formed on the other side, A clip main body 4 formed in a substantially U shape from a back surface portion 43 connecting a pair of parallel two surface portions 41 and 42 is used.

  Since the clip body 4 of this other use example is configured as described above, the first rebar 5 and the second rebar 6 are inserted into the clip body 4 and the plate bolt 1 is inserted into the plate bolt from the long hole 4a side. The first reinforcing bar 5 and the second reinforcing bar 6 are inserted into the hole 4 b and are arranged in a space surrounded by the clip body 4 and the wedge-shaped inclined surface 13 a in the plate-like head 13. Then, by screwing the nut 2 into the plate screw portion 11 protruding from the plate-like bolt hole 4b and tightening the nut 2, the distance between the pair of parallel two-surface portions 41 and 42 is narrowed, and The space surrounded by the clip main body 4 and the wedge-shaped inclined surface 13a is narrowed by entering the long hole 4a, and the first rebar 5 and the second rebar 6 are restrained by the clip main body 4 and the wedge-shaped inclined surface 13a. And can be firmly fixed in a close contact state.

  Therefore, in the plate-like bolt of the third embodiment, in addition to the same effects as those of the second embodiment, a wedge-shaped inclined surface 13a is used in combination with the clip body 4 having a substantially U-shaped cross section. Thus, an additional effect that a plurality of reinforcing bars 5, 6 can be fastened and fixed can be obtained.

The plate-like bolt of the fourth embodiment corresponds to the invention described in claims 2-6.
FIG. 11 is a perspective view showing a plate-like bolt of Example 4, and FIG. 12 is a sectional view of the use state showing a nut screwing state.
The plate-like bolt of the fourth embodiment is different from the third embodiment in that the wedge-shaped inclined surface 13a is formed only on one side.
Therefore, also in the plate-like bolt of the fourth embodiment, the same effect as the third embodiment can be obtained.

Although the present embodiment has been described above, the present invention is not limited to the above-described embodiment, and design changes and the like within a scope not departing from the gist of the present invention are included in the present invention.
For example, in the embodiment, the male screw thread 12 is a round screw, but is not limited thereto.
Further, in the embodiment, it is best that the pitch of the male screw thread 12 is formed to be three times or more of the normal pitch, but it may be less.
Further, the use of the plate bolt is arbitrary.

1 is a perspective view showing a plate-like bolt of Example 1. FIG. It is sectional drawing which shows the nut screwing state in the plate-shaped volt | bolt of Example 1. FIG. It is a perspective view which shows the plate-shaped volt | bolt of Example 2. FIG. It is sectional drawing of the use condition which shows the nut screwing state in the plate-shaped volt | bolt of Example 2. FIG. It is sectional drawing in the AA of FIG. It is a perspective view which shows the plate-shaped volt | bolt of Example 3. FIG. It is sectional drawing of the use condition which shows the nut screwing state in the plate volt | bolt of Example 3. FIG. It is sectional drawing in the BB line of FIG. 6 is an exploded perspective view showing another example of use of the plate-like bolt of Example 3. FIG. It is process explanatory drawing which shows the other usage example of the plate-shaped volt | bolt of Example 3. FIG. It is a perspective view which shows the plate-shaped volt | bolt of Example 4. FIG. The state of use showing the screwed state of the nut in the plate-like bolt of Example 4 It is a perspective view which shows the plate-shaped volt | bolt of a prior art example. It is sectional drawing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Plate-shaped bolt 11 Plate-shaped thread part 12 Male thread 13 Plate-shaped head 13a Wedge-shaped inclined surface 2 Nut 21 Female thread groove 3 Fastening member 31 Bolt hole 4 Clip main body 4a Long hole 4b Bolt hole 41 Parallel two surface part 42 Parallel two Surface part 43 Back part 5 1st reinforcing bar 6 2nd reinforcing bar

Claims (6)

A plate-like bolt formed by stamping a metal plate,
It consists only of a plate-like screw part that does not have a plate-like head,
A plate-like bolt, wherein a male screw thread is formed only on one of the side end surfaces of both side end surfaces of the plate-like screw portion. A plate-like bolt formed by stamping a metal plate,
A plate-like head and a plate-like screw portion that are abutted and locked to the opening edge of the plate-like bolt hole are integrally formed,
A plate-like bolt, wherein a male thread is formed only on one of the side end surfaces of both side end surfaces of the plate-like screw portion.   The plate-like bolt according to claim 1 or 2, wherein the pitch of the male screw thread in the plate-like screw portion is formed to be three times or more of the normal pitch.   The plate-like bolt according to any one of claims 1 to 3, wherein the male screw thread is a round screw.   The plate-like bolt according to any one of claims 1 to 4, wherein the metal plate is subjected to press punching and then subjected to quenching.   The plate-like bolt according to any one of claims 1 to 5, wherein a portion of the plate-like head that is in contact with and locked to an opening edge portion of the plate-like bolt hole of the member to be fastened is a wedge-shaped inclined surface. A plate bolt characterized by being formed.

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