JP4201219B2 - nut - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a nut that is screwed into a wing plate bolt used when reinforcing a connection between a girder and a girder of a wooden house, and a nut used for reinforcing a connection between a girder and a girder.
[0002]
[Prior art]
Conventionally, when reinforcing the connection between a wooden house girder and a girder, the head of the battledore bolt is fixed to one girder, and the tip of the battledore bolt is inserted into a bolt insertion hole formed in the other girder, A nut is screwed onto the bolt via a washer and is fastened and fixed.
[0003]
[Problems to be solved by the invention]
In the reinforcement of the connection between the girders and the girders using the conventional battledore bolts, when the wood constituting the girders dries and shrinks, the tightened state with the nut is released and does not function as a reinforcement. There was a drawback.
Further, the attachment of the nut to the battledore bolt has the disadvantage that it takes a lot of work because it has to be screwed to the predetermined tightening position while screwing the nut from the end of the battledore bolt.
[0004]
In view of the above-described conventional drawbacks, the present invention can be positioned in a pressed state up to the tightening portion of the nut, and can be tightened with a slight tightening work, and even when the size of the tightening portion is reduced, the tightening state is sufficient It is intended to provide a nut that can hold the nut.
[0005]
The above and other objects and novel features of the present invention will become more fully apparent when the following description is read in conjunction with the accompanying drawings.
However, the drawings are for explanation only and do not limit the technical scope of the present invention.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides an inner cylindrical body made of a synthetic resin material having an inclined hole whose inner diameter is gradually reduced in size, and at least three formed in the axial direction of the inner wall surface of the inner cylindrical body. The above-mentioned guide pieces, at least three nut segments in which screw threads to be screwed with bolts are formed on inner wall surfaces that are slidably moved in the axial direction between the guide pieces, and the inner cylinder An outer cylinder having a bolt insertion hole formed in a rear end portion covering an outer peripheral portion of a portion excluding a small-diameter side end portion of the body, and at least three nuts in the inner cylinder housed in the outer cylinder body A biasing spring that constantly biases the segment toward the small diameter side of the inner cylindrical body and a bolt insertion hole that abuts on the small diameter side end of the inner cylindrical body and is screwed with the at least three nut segments are formed. The outer periphery of the outer cylinder Constitute a nut and a flange-like attachment piece having an insertion hole of the plurality of screws or the like attached to the outer cylindrical body projecting outward from the.
[0007]
Further, the present invention is an inner cylindrical body made of a synthetic resin material having an inclined hole whose inner diameter is gradually reduced in size, at least three guide pieces formed in the axial direction of the inner wall surface of the inner cylindrical body, At least three nut segments in which a screw thread to be screwed with a bolt is formed on an inner wall surface slidably mounted in the axial direction between these guide pieces, and a small-diameter side end portion of the inner cylindrical body An outer cylinder having a bolt insertion hole formed at the rear end portion that covers the outer peripheral portion of the portion excluding the fixed portion, and at least three nut segments in the inner cylinder housed in the outer cylinder are always attached to the outer cylinder. The outer cylinder having an urging spring for urging to the smaller diameter side of the inner cylinder, and a bolt insertion hole that is positioned at the smaller diameter end of the inner cylinder and is screwed with the at least three nut segments. Outside the outer periphery of the body Constitute a nut and a flange-like attachment piece having an insertion hole of the plurality of screws or the like rotatably mounted to the outer cylindrical body and out.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings.
[0009]
In the first embodiment of the present invention shown in FIGS. 1 to 12, reference numeral 1 denotes a connecting tool used for reinforcing the connection between the girders 2 and 3 of a wooden house as shown in FIG. As shown in FIGS. 2 and 3, the connector 1 includes an attachment plate 5 having an insertion hole 4 such as a bolt or a nail in a portion near the other end formed in an elliptical plate shape, and the attachment plate 5. A bolt 6 whose one end is fixed by welding or the like at a site near one end of the bolt 6, and a nut 6 of the present invention that can be screwed after being pushed into the bolt 6 to a predetermined position. 7.
[0010]
As shown in FIGS. 4 to 9, the nut 7 has a nut body 11 having an outer wall 8 formed in a polygonal shape, in the embodiment of the present invention, a hexagonal shape, and an inclined hole 10 having successively smaller diameters in the inner wall 9; A stopper piece 13 having a bolt insertion hole 12 formed at the end of the nut body 11 on the large diameter side, and at least three or more formed in the axial direction of the inner wall surface of the nut body 11, this embodiment Then, there are three guide pieces 14, 14, 14, and a screw thread 15 that is slidably mounted in the axial direction between the guide pieces 14, 14, 14 and is screwed to the bolt 6 on the inner wall surface. The three nut segments 16, 16, 16 formed and the three nut segments 16, 16, 16 fixed to the end portion on the small diameter side of the nut body 11 by welding or the like are prevented from coming off. With A flange-shaped mounting piece 18 formed with a plurality of screw insertion holes 17, 17 projecting outward from the outer peripheral portion of the nut body 11, a stopper piece 13 in the nut body 11 and the three nuts Between the segments 16, 16, 16, the nut segments 16, 16, 16 are constituted by a biasing spring 19 that constantly biases the nut segment 16, 16 to the small diameter side of the nut body 11 via a washer 19 a as necessary. .
[0011]
The three nut segments 16, 16, 16 are formed so that the biasing spring 19 side is thicker than the small-diameter side of the nut body 11.
[0012]
As shown in FIG. 1, the connector 1 having the above-described structure is formed with bolt insertion holes 20, 20 in a portion that reinforces the beam 2 and the beam 3, and after inserting the bolt 6 into the bolt insertion hole 20 of the beam 3, The mounting plate 5 is fixed to the beam 2 with bolts 21 and nuts 7.
Thereafter, the mounting piece 18 of the nut 7 is moved forward to the bolt 6 and pushed into the tightening position as shown in FIG.
[0013]
At this time, the nut segments 16, 16, 16 slide to the large diameter side of the inclined hole 10 against the urging force of the urging spring 19, thereby allowing the bolt 6 to enter.
[0014]
Next, by tightening the nut 7 with a spanner or the like, the threaded portion 6a of the bolt 6 and the threads 15, 15, 15 of the nut segments 16, 16, 16 are screwed together as shown in FIG. And the girder 3 are fastened and fixed, and when tightening is completed, nails and screws 23 and 23 are driven into the screw insertion holes 17 and 17 of the mounting piece 18 to fix the mounting piece 18 and the girder 3.
In this case, a hook-shaped pin may be driven and fixed to the outer peripheral portion of the mounting piece 18.
[0015]
When the girders 2 and 3 are dried and shrunk, the connecting body 1 attached in this way is fixed to the girders 3 with nails and screws 23 and 23 as shown in FIG. The nut segments 16, 16, 16 slide against the urging force of the urging spring 19 to prevent the tightening from loosening.
[0016]
Different Embodiments of the Invention
Next, different embodiments of the present invention shown in FIGS. 13 to 44 will be described. In the description of the different embodiments of the present invention, the same components as those in the first embodiment of the present invention are denoted by the same reference numerals, and redundant description is omitted.
[0017]
In the second embodiment of the present invention shown in FIGS. 13 to 15, the main difference from the first embodiment of the present invention is that a nut in which a disc-shaped mounting piece 18A is fixed to the nut body 11. In connection with the connecting tool 1A using the nut 7A formed as described above, the same effects as those of the first embodiment of the present invention can be obtained in that the 7A is used.
[0018]
The third embodiment of the present invention shown in FIGS. 16 to 18 is mainly different from the first embodiment of the present invention in that the screw insertion grooves 24 and 24 are formed on the outer periphery during molding. The same effect as that of the first embodiment of the present invention can be obtained by using the nut 7B in which the piece 18B is fixed to the nut body 11 and the connecting tool 1B using the nut 7B formed in this way. Is obtained.
[0019]
In the fourth embodiment of the present invention shown in FIGS. 19 to 22, the main difference from the first embodiment of the present invention is that the threaded portion 25 is formed on the inner wall surface of the end portion on the small diameter side of the nut body 11A. And a nut 7C that can screw and fix the mounting piece 18C to the nut body 11A in this way, because the screw cylinder 26 that is screwed and fixed to the screw portion 25 is formed on the mounting piece 18C. Even with the connecting tool 1C, the same effects as those of the first embodiment of the present invention can be obtained.
[0020]
The fifth embodiment of the present invention shown in FIGS. 23 to 26 is mainly different from the first embodiment of the present invention in that the outer periphery of the lower end supporting the three nut segments 16, 16, 16. An attachment piece 18D in which an inclined cylinder 27 having a threaded portion 27a formed therein is integrally formed, and a nut main body 11B in which a screw portion 28 to be screwed with the threaded portion 27a of the inclined cylinder 27 is formed on the inner wall surface of the tip. In terms of use, the connecting tool 1D using the nut 7D formed in this way can obtain the same operational effects as those of the first embodiment of the present invention and can easily assemble the nut 7D. Can do. If the nut main body 11B and the mounting piece 18D are screwed and fixed, the screwed portion between the nut main body 11B and the mounting piece 18D may be fixed with an adhesive or by welding or the like. Good.
[0021]
The sixth embodiment of the present invention shown in FIGS. 27 to 30 is mainly different from the fifth embodiment of the present invention in that the outer periphery of the lower end supporting the three nut segments 16, 16, 16. A nut formed by using the mounting piece 18E formed in this way in that the mounting piece 18E integrally formed with the inclined pieces 27A, 27A, 27A having a T-shaped cross section in which the threaded portion 27a is formed at the portion is used. Even with the connector 1E using 7E, the same effects as those of the fifth embodiment of the present invention can be obtained, and the weight of the nut 7E can be reduced.
[0022]
The seventh embodiment of the present invention shown in FIGS. 31 to 34 is mainly different from the first embodiment of the present invention in that at least three guide pieces 14, 14, 14 are formed. The inner cylinder 29 made of a synthetic resin material having a hexagonal outer peripheral surface, a hexagonal outer cylinder 30 formed with a bolt insertion hole 12 covering the outer periphery of the inner cylinder 29, and the outer cylinder 30 The nut 7F formed in this way is used in the point of using the mounting piece 18F in which the crimping pieces 32, 32 to be crimped and fixed to the flange portion 31 formed near the tip end portion of the present invention is used. The same effects as those of the first embodiment can be obtained.
[0023]
In the eighth embodiment of the present invention shown in FIGS. 35 to 37, the main difference from the seventh embodiment of the present invention is that a disc-shaped flange portion 31A protruding outward is provided at the tip portion. The formed outer cylinder 30A is used, and the nut 7G configured as described above is formed at the point where the flange 31A of the outer cylinder 30A is swaged with the crimping pieces 32, 32 of the mounting piece 18F. Thus, the same operational effects as those of the seventh embodiment of the present invention can be obtained, and the outer cylindrical body 30A can be rotated and screwed into the bolt.
[0024]
The ninth embodiment of the present invention shown in FIGS. 38 to 41 is mainly different from the eighth embodiment of the present invention in that an outer cylindrical body 30B having a circular outer periphery is used. Thus, even with the nut 7H using the outer cylindrical body 30B formed in this way, the same operational effects as those of the first embodiment of the present invention can be obtained.
[0025]
The tenth embodiment of the present invention shown in FIGS. 42 to 44 is mainly different from the seventh embodiment of the present invention in that an outer cylindrical body 30C having a circular outer periphery is used. Even with the nut 7I using the outer cylindrical body 30C formed in this way, the same effects as those of the seventh embodiment of the present invention can be obtained.
In addition, although each embodiment of the present invention has been described with respect to the coupling tool, the present invention is not limited to this, and the nut 7 of the present invention can be connected to an anchor bolt or other bolt embedded in concrete. 7A, 7B, 7C, 7D, 7E, 7F, 7G, 7H, and 7I may be used.
Further, three or more nut segments other than three may be stored in the nut body.
[0026]
【The invention's effect】
As is clear from the above description, the present invention has the following effects.
[0027]
(1) An inner cylindrical body made of a synthetic resin material having an inclined hole whose inner diameter is gradually reduced in size, at least three guide pieces formed in the axial direction of the inner wall surface of the inner cylindrical body, At least three nut segments each having a thread threadedly engaged with a bolt formed on an inner wall surface that is slidably movable in the axial direction between the guide pieces, and a small-diameter side end of the inner cylinder. An outer cylinder in which a bolt insertion hole is formed at the rear end portion covering the outer peripheral portion of the removed portion, and at least three or more nut segments in the inner cylinder housed in the outer cylinder are always attached to the inner cylinder. An outer peripheral portion of the outer cylindrical body formed with a biasing spring that biases toward the small diameter side, and a bolt insertion hole that is in contact with the small diameter side end of the inner cylindrical body and is screwed with the at least three nut segments. The outside projecting outward than Since it is composed of a flange-like attachment piece having a plurality of insertion holes for screws or the like attached to the cylindrical body, the nut can be positioned by pushing it down to the part where the bolt is tightened, and by rotating it, 3 More than one nut segment can be screwed into the threaded portion of the bolt.
Therefore, the nut can be easily attached and can be performed in a short time.
[0028]
(2) According to the above (1), the mounting piece can be fixed to a member to be tightened with a screw or the like.
Therefore, even if the member to be tightened during use is shrunk, the nut main body follows and moves, and the inner nut segment slides, so that it is possible to efficiently prevent the tightening force from changing.
[0029]
(3) According to the above (1), the nut segment is constantly urged toward the small diameter side by the urging spring, so that it can be reliably screwed into the bolt.
[0030]
(4) In claim 2, the same effects as in the above (1) to (3) can be obtained.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a usage state of a first embodiment of the present invention.
FIG. 2 is a front view of the first embodiment of the present invention.
FIG. 3 is a plan view of the first embodiment of the present invention.
FIG. 4 is a front view of the nut according to the first embodiment of the present invention.
FIG. 5 is a plan view of the nut according to the first embodiment of the present invention.
FIG. 6 is a side view of the nut according to the first embodiment of the present invention.
FIG. 7 is a bottom view of the nut according to the first embodiment of the present invention.
8 is a cross-sectional view taken along line 8-8 in FIG.
9 is a cross-sectional view taken along line 9-9 of FIG.
FIG. 10 is an explanatory diagram of a state in which a nut is attached.
FIG. 11 is an explanatory diagram of a tightened state of a nut.
FIG. 12 is an explanatory diagram of a state in which a tightening portion is contracted.
FIG. 13 is a front view of a second embodiment of the present invention.
FIG. 14 is a partially broken front view of a nut according to a second embodiment of the present invention.
FIG. 15 is a plan view of a nut according to a second embodiment of the present invention.
FIG. 16 is a front view of a third embodiment of the present invention.
FIG. 17 is a partially broken front view of a nut according to a third embodiment of the present invention.
FIG. 18 is a plan view of a nut according to a third embodiment of the present invention.
FIG. 19 is a front view of a fourth embodiment of the present invention.
FIG. 20 is a front view of a nut according to a fourth embodiment of the present invention.
21 is a cross-sectional view taken along line 21-21 in FIG.
FIG. 22 is an exploded view of the nut according to the fourth embodiment of the present invention.
FIG. 23 is a front view of a fifth embodiment of the present invention.
FIG. 24 is a front view of a nut according to a fifth embodiment of the present invention.
25 is a sectional view taken along line 25-25 in FIG. 24. FIG.
FIG. 26 is an explanatory diagram of the assembled state of the nut according to the fifth embodiment of the present invention.
FIG. 27 is a front view of a sixth embodiment of the present invention.
FIG. 28 is a front view of a nut according to a sixth embodiment of the present invention.
29 is a sectional view taken along line 29-29 in FIG. 28;
FIG. 30 is an explanatory diagram of an assembled state of a nut according to a sixth embodiment of the present invention.
FIG. 31 is a plan view of a seventh embodiment of the present invention.
32 is a cross-sectional view taken along the line 32-32 in FIG. 31;
33 is a cross-sectional view taken along line 33-33 in FIG. 32;
FIG. 34 is an explanatory diagram showing a seventh embodiment of the present invention.
FIG. 35 is a plan view of an eighth embodiment of the present invention.
36 is a sectional view taken along line 36-36 in FIG. 35;
FIG. 37 is an explanatory view showing an eighth embodiment of the present invention.
FIG. 38 is a plan view of a ninth embodiment of the present invention.
39 is a cross-sectional view taken along line 39-39 in FIG. 38.
40 is a sectional view taken along the line 40-40 in FIG. 39;
FIG. 41 is an explanatory diagram showing a ninth embodiment of the present invention.
FIG. 42 is a plan view of a tenth embodiment of the present invention.
43 is a cross-sectional view taken along line 43-43 in FIG.
FIG. 44 is an explanatory diagram showing a tenth embodiment of the present invention.
[Explanation of symbols]
1: connector, 2: girder,
3: Digit,
4: Insertion hole,
5: Mounting plate, 6: Bolt,
7, 7A-7I: nut, 8: outer wall,
9: inner wall,
10: inclined hole,
11, 11A, 11B: nut body,
12: Bolt insertion hole,
13: Stopper piece,
14: Guide piece, 15: Screw thread,
16: Nut segment, 17: Screw insertion hole,
18, 18A-18F: mounting piece,
19: Energizing spring, 20: Bolt insertion hole,
21: bolt, 22: nut,
23: nails and screws, 24: screw insertion holes,
25: Female thread part, 26: Screw cylinder,
27: Inclined cylinder, 27A: Inclined piece,
28: Screw part, 29: Inner cylinder,
30, 30A, 30B, 30C: outer cylinder,
31, 31A: flange portion,
32: Caulking piece.

Claims (2)

  An inner cylinder made of a synthetic resin material having an inclined hole whose inner diameter is gradually reduced in size, at least three guide pieces formed in the axial direction of the inner wall surface of the inner cylinder, and between these guide pieces And at least three nut segments each having a thread threadedly engaged with a bolt on an inner wall surface that is slidably mounted in the axial direction, and a portion other than a small diameter side end of the inner cylindrical body. An outer cylinder in which a bolt insertion hole is formed at the rear end portion that covers the outer periphery, and at least three nut segments in the inner cylinder housed in the outer cylinder are always moved to the smaller diameter side of the inner cylinder. A biasing spring that biases and a small-diameter side end of the inner cylindrical body, and an outer peripheral portion of the outer cylindrical body that is formed with bolt insertion holes that are screwed into the at least three nut segments. On the outer cylinder projecting toward Nut, characterized in that it consists of a flange-like attachment piece having an insertion hole of the plurality of screws or the like attached.   An inner cylinder made of a synthetic resin material having an inclined hole whose inner diameter is gradually reduced in size, at least three guide pieces formed in the axial direction of the inner wall surface of the inner cylinder, and between these guide pieces And at least three nut segments each having a screw thread that is screwed onto a bolt on an inner wall surface that is slidably movable in the axial direction, and an outer periphery of a portion excluding a small-diameter end of the inner cylindrical body An outer cylinder in which a bolt insertion hole is formed at a rear end portion that covers the portion fixedly, and at least three nut segments in the inner cylinder housed in the outer cylinder are always provided with a small diameter of the inner cylinder. A biasing spring that biases to the side, and an outer peripheral portion of the outer cylindrical body that is located at a small-diameter side end of the inner cylindrical body and that has bolt insertion holes that are screwed into the at least three nut segments. The outside also protrudes outward Nut, characterized in that it consists of a flange-like attachment piece having an insertion hole of the plurality of screws or the like rotatably mounted on the body.

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