JPH08326733A - Structure by iron and steel material, and taper washer for its fastening - Google Patents

Abstract

PURPOSE: To prevent a taper washer from rotating at the time of fastening by a bolt. CONSTITUTION: A taper washer 11 is composed of a taper plate part 12, which forms a face to orthogonal to the axial direction of a bolt by correcting the tilt condition of the incline of the fixed plate part of a channel, and a rotation stop cylinder 13 which is provided at this taper plate part 12 and engages with the C cut hole of the fixing plate part and suppresses the rotation of the taper plate part 12. In case of fastening the channel and other plate material, etc., the rotation stop cylinder 13 is engaged with the D cut hole of the fixing plate part, and a bolt is inserted into the bolt retaining hole 19 of this rotation stop cylinder 13 so as to fix each other. At this time, for the taper washer 11, since the rotation stop cylinder 13 is engaged with the D cut hole, the rotation is surely suppressed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a groove section steel, a C section steel, an H section steel.
The present invention relates to a structure made of a steel material obtained by fixing a steel material such as shaped steel and L-shaped steel with bolts, and a taper washer for fastening the structure.

[0002]

2. Description of the Related Art Generally, a steel material such as a grooved steel is fixed as shown in FIGS.

FIG. 13 is a side sectional view showing the grooved steel 1. The groove-shaped steel 1 is composed of a flat plate portion 2 and a fixing plate portion 3 integrally provided on both sides (upper and lower sides in FIG. 13) of the flat plate portion 2 in a flange shape. Each fixed plate portion 3 is formed so that the outer side surface 3A is flat and the inner side surface 3B is inclined with a taper angle of 5 degrees. As shown in FIGS. 14 and 15, bolt holes 4 are provided in the fixing plate portion 3. And FIG.
As shown in FIGS. 6 and 17, bolts 5 are passed through the bolt holes 4 of the fixing plate portion 3, and the fixing plate portion 3 and the other plate member 7 are fixed to each other together with the nut 6.

In this case, if it is attempted to fix only with the bolt 5, as shown in FIG. 16, the inclined inner side surface 3B of the fixing plate portion 3 and the surface of the head portion of the bolt 5 do not match,
The two members cannot be securely fixed.

For this reason, conventionally, as shown in FIGS. 18A, 18B and 19, a wedge-shaped taper washer 8 is provided. That is, as shown in FIG. 17, a taper washer 8 is attached to the bolt 5 and is passed through the bolt hole 4 of the fixed plate portion 3 and the bolt hole 10 of the plate portion 7, a spring washer 9 is attached, and a nut 6 is screwed in to fix them. They were fixed to each other. At this time, the nut 6 was tightened while being careful not to rotate the taper washer 8.

[0006]

However, in the fixing means as described above, since the taper washer 8 is mounted in a free state, tightening the nut 6 inevitably causes the taper washer 8 to rotate. . And in the worst case, as shown in FIG. 17, it rotates 180 degrees,
There is a problem that the displacement between the head of the bolt 5 and the inclined surface may be worse than in the case where the taper washer 8 is not provided.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a structure made of a steel material capable of reliably fixing each member and a taper washer for fastening the structure.

[0008]

In order to solve the above-mentioned problems, a structure made of a steel material according to the first invention is formed in a flange shape having an inclined surface and is abutted against other members and fastened together. A steel material having a fixing plate portion, a bolt for fixing and supporting the fixing plate portion and other members of these steel materials to each other, and correcting the inclined state of the inclined surface of the fixing plate portion when fastening with the bolt It comprises a fastening taper washer that forms a surface orthogonal to the axial direction of the bolt, and the fastening taper washer corrects the inclined state of the inclined surface of the fixing plate portion to form a surface orthogonal to the axial direction of the bolt. The taper plate portion to be formed and a fitting portion which is provided on the taper plate portion and fits on the inclined surface side of the fixed plate portion, and the fitting portion is fitted on the inclined surface side of the fixed plate portion. To prevent the taper plate from rotating. Wherein the engagement portion is provided.

The fastening taper washer according to the second aspect of the present invention is characterized in that when the fixing plate portion made of a steel material having an inclined surface and having a flange shape is brought into contact with another member and fastened to each other with bolts, A fastening taper washer mounted on the bolt for correcting the inclination state of the inclined surface of the fixed plate portion and securely fixing the fixed plate portion, the shaft of the bolt by correcting the inclined state of the inclined surface of the fixed plate portion. A taper plate portion that forms a surface orthogonal to the direction; and a fitting portion that is provided on the taper plate portion and that fits into the fitted portion on the inclined surface side of the fixed plate portion to suppress rotation of the taper plate portion. It is characterized by being configured.

[0010]

With the above structure, when the fixing plate portion made of the steel material and the other member are fastened with the bolt, the fastening taper washer is attached to the bolt. This fastening taper washer
The fitting part provided on the tapered plate part fits the fitted part provided on the inclined surface side of the fixed plate part to suppress the rotation of the tapered plate part. The taper washer does not rotate. As a result, the fastening taper washer reliably corrects the tilted state of the tilted surface of the fixed plate portion, and the steel material and the other member can be firmly fastened.

[0011]

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

FIG. 1 (A) is a plan view showing a taper washer 11 according to this embodiment, and FIG. 1 (B) is a taper washer 11
Is a front view and FIG. 1C is a back view of the taper washer 11. The taper washer 11 of the present embodiment is mainly composed of a wedge-shaped taper plate portion 12 and a rotation stopping cylinder portion 13 as a fitting portion for suppressing the rotation of the taper plate portion 12.

The taper plate portion 12 has a flat outer surface 12A (upper side surface in FIG. 1B) and a wedge-shaped inner side surface 12B (lower surface in FIG. 1B). Is formed. The inner side surface 12B of the wedge-shaped tapered plate portion 12 is set according to the inclination angle of the fixed plate portion 17 (see FIG. 2) of the groove-shaped steel 15. As a result, the tapered plate portion 12
Has its inner side surface 12B abutted on the inner side surface 17A of the fixed plate portion 17 to correct the inclination of this surface, and its outer side surface 12A is a surface orthogonal to the axial direction of the bolt 30 described later (the head of the bolt 30). Abutment surface) where the parts are aligned.

The rotation stopping tubular portion 13 is formed in a substantially cylindrical shape as a whole, and a bolt supporting hole 18 into which the bolt 30 is inserted is provided inside. Further, the outer peripheral surface of the rotation stopping tubular portion 13 is cut so that the cross section has a D shape (D cut).
The cutout surface 19 is provided. The rotation stopping tubular portion 13 having a D-shaped cross section is inserted into a D cut hole 21 as a fitted portion which will be described later, so that the rotation of the tapered plate portion 12 can be suppressed and its positioning can be performed.

The groove-shaped steel 15 is constructed as shown in FIGS. The overall structure of the groove-shaped steel 15 is almost the same as that of the conventional groove-shaped steel 1, and is composed of a flat plate portion 16 and fixing plate portions 17 provided on both sides of the flat plate portion 16. Further, the fixed plate portion 17 is provided with a D cut hole 21 into which the rotation stopping tubular portion 13 is fitted. The D-cut hole 21 is formed to have substantially the same size as the outer shape of the D-shaped cross section of the rotation stopping tubular portion 13, and when the rotation stopping tubular portion 13 is fitted, the rotation of the rotation stopping tubular portion 13 is surely suppressed. It is like this. That is, the rotation of the taper plate portion 12 is reliably suppressed and the inner side surface 12B of the taper plate portion 12 is aligned with the inner side surface 17A of the fixed plate portion 17 in a state in which the rotation stopping tubular portion 13 is fitted in the D cut hole 21. There is.

The D-cut hole 21 of the fixed plate portion 17 is opened by using the hole forming device 25 shown in FIG. This punching device 25
Is provided with a die 26 that presses and supports the fixed plate portion 17 from the inner surface 17A side thereof, and a D-shaped punch 27 that makes a D cut hole 21 from the outer surface 17B in the fixed plate portion 17 supported by this die 26. Is configured. By this punching device 25, the D-cut hole 21 is formed at a predetermined position of the fixing plate portion 17 of the grooved steel 15.

With the above construction, the groove-shaped steel 15 and the plate material 2
9 (see FIG. 6) is fixed to each other as follows.

As shown in FIG. 5, the rotation stopping cylinder portion 13 of the taper washer 11 is fitted into the D cut hole 21 of the fixing plate portion 17 of the groove-shaped steel 15. This allows the taper washer 1
1, the inner surface 12B of the tapered plate portion 12 is the fixed plate portion 1
7 is aligned with the inner side surface 17A of the device 7, and is mounted in a stable and securely suppressed state.

Next, as shown in FIG. 6, another plate 29
The bolts 30 are inserted into the bolt support holes 18 of the rotation stopping cylinder portion 13 of the taper washer 11 in a state where they are overlapped with each other.
At the tip of the bolt 30, a spring washer 31 and a nut 32 are attached and tightened in a state of penetrating the plate material 29.

At this time, since the taper washer 11 is securely supported by the D cut hole 21 of the fixed plate portion 17, it does not rotate. As a result, the head of the bolt 30 is irrelevant to the inclined surface of the fixing plate portion 17,
It is pressed against the outer surface 12A of the taper plate portion 12 that forms a surface orthogonal to the axial direction of 0. As a result, the fixed plate portion 17 and the plate member 29 of the groove-shaped steel 15 are firmly fixed and supported to each other.

The case where the two groove-shaped steels 15 are fixed to each other is the same as the case where the groove-shaped steels 15 and the plate member 29 are fixed to each other. Specifically, as shown in FIG. 7, the groove-shaped steels 15 are brought into contact with each other with their D-cut holes 21 aligned, the taper washers 11 are attached to the respective D-cut holes 21, and the bolts 30 are fixedly supported. To do.

From the above, the fixing plate portion 17 of the groove-shaped steel 15
It becomes possible to reliably prevent the taper washer 11 from rotating when fixing and other members, so that the work can be extremely simple and the work efficiency can be greatly improved. Become. Further, since the bolt 30 can be securely tightened, each member can be fixed accurately.

[Modification] (1) In the above-described embodiment, the rotation stopper cylinder portion 13 of the taper washer 11 is set to be elongated to a certain extent so that the rotation stopper cylinder portion 13 can be sufficiently mounted in the D-cut hole 21. Since it suffices that 13 is fitted into the D-cut hole 21 to suppress the rotation, as shown in FIG. 8, the rotation stopping tubular portion 36 of the taper washer 35 is set to be short, and the rotation stopping tubular portion 36 has the same sectional shape. The collar portion 37 may be configured as a separate member.

(2) Further, in the present embodiment, the shape of the rotation stopping tubular portion 13 and the D-cut hole 21 is D-shaped for ease of molding, but it is quadrangular, pentagonal, spline-shaped, and keyway-shaped. Needless to say, other shapes such as The rotation stopper cylinder portion 13 and the D-cut hole 21 may have any other shape as long as they can be fitted together to suppress rotation.

(3) Further, in the above embodiment, the groove-shaped steel 15 was used as the steel material, but if the plate-shaped portion 16 having the inclined surface is provided, the C-shaped steel, the H-shaped steel and the L-shaped steel can be used. It goes without saying that other shapes of steel materials such as steel may be used.

(4) Further, as shown in FIG. 9, a fitting projection 41 is formed as a fitting portion provided on the taper plate portion 12 side, and a fitting projection 4 is formed as a fitted portion provided on the fixed plate portion 17 side.
You may provide the fitting recessed part 42 with which 1 fits. On the contrary, the fitting concave portion 43 may be provided as the fitting portion and the fitting protrusion 44 may be provided as the fitted portion. In this case, the rotation stopping cylinder portion 13 is not provided. Furthermore, the D-cut hole 21 is not provided, and only the round hole for bolts is provided.

Further, as shown in FIG. 10, the tapered plate portion 12
The notch 46 is provided on the flat plate portion 16 side, and the notch 4
You may provide the protrusion part 47 with which 6 fits. Further, a fitting hole is provided on the flat plate portion 16 side instead of the protrusion 47, and a pin is inserted into the fitting hole to support the taper plate portion 12 only when the bolt 30 is tightened, and when the tightening work is completed. The pin may be pulled out.

Further, as shown in FIG. 11, a ridge 48 may be provided on the side of the flat plate portion 16 so as to abut against the peripheral edge portion of the tapered plate portion 12 to suppress the rotation thereof.

Further, as shown in FIGS. 12 (A) and 12 (B),
A slit 50 may be provided at the periphery of the bolt hole 49 on the fixed plate portion 17 side, and a fitting protrusion 51 that fits into this slit may be provided on the tapered plate portion 12 side.

[0030]

As described in detail above, according to the present invention,
The following effects can be achieved.

It becomes possible to reliably prevent the taper washer from rotating when the steel material and other members are fixed by bolts. As a result, the work of fixing the steel material to the other member becomes extremely simple and the work efficiency is greatly improved. Further, the working time can be shortened.

Since the taper washer is not displaced and the bolt can be securely tightened, each member can be fixed accurately and surely.

[Brief description of drawings]

FIG. 1 is a plan view, a front view and a back view showing a taper washer according to the present invention.

FIG. 2 is a side sectional view showing a fixing plate portion of grooved steel provided with a D-cut hole.

FIG. 3 is a plan view showing a fixing plate portion of grooved steel provided with a D-cut hole.

FIG. 4 is a plan view showing a punching device.

FIG. 5 is a side sectional view showing a state in which a tapered washer is attached to a D cut hole of a fixed plate portion.

FIG. 6 is a side cross-sectional view showing a state in which the groove-shaped steel and another plate material are fixed by bolts.

FIG. 7 is a side sectional view showing a state where two groove-shaped steels are fixed to each other.

FIG. 8 is a front view showing a first modified example of the present invention.

FIG. 9 is a front view showing a second modified example of the present invention.

FIG. 10 is a front view showing a third modified example of the present invention.

FIG. 11 is a front view showing a fourth modified example of the present invention.

FIG. 12 is a front view showing a fifth modified example of the present invention.

FIG. 13 is a side sectional view showing a conventional grooved steel.

FIG. 14 is a side sectional view showing a fixing plate portion of conventional grooved steel.

FIG. 15 is a plan view of FIG.

FIG. 16 is a side cross-sectional view showing a state in which a conventional groove-shaped steel and another plate member are fixed only by bolts without providing a taper washer.

FIG. 17 is a side cross-sectional view showing a state in which a conventional grooved steel and another plate material are provided with taper washers and fixed with bolts.

FIG. 18 is a front view and a plan view showing a conventional taper washer.

FIG. 19 is a side sectional view showing a state in which a taper washer is attached to grooved steel.

[Explanation of symbols]

11 ... Taper washer, 12 ... Tapered plate part, 12A ... Outer surface, 12B ... Inner side surface, 13 ... Rotation stop cylinder part, 15 ... Groove shape steel, 16 ... Flat plate part, 17 ... Fixed plate part, 17A ... Inner side surface, 17B ... Outer surface, 18 ... Bolt support hole, 19 ... Notch surface, 21 ... D cut hole.

Claims (2)

[Claims] 1. A steel material having a fixing plate portion, which has an inclined surface and is formed in a flange shape, and which abuts and is fastened to another member, and a fixing plate portion of the steel material and another member. The fastening taper washer includes a bolt that is fixed and supported, and a fastening taper washer that corrects the inclination state of the inclined surface of the fixing plate portion when the bolt is fastened to form a surface orthogonal to the axial direction of the bolt. Is a tapered plate portion that corrects the inclined state of the inclined surface of the fixed plate portion to form a surface orthogonal to the axial direction of the bolt, and is fitted to the inclined surface side of the fixed plate portion provided on the tapered plate portion. And a fitted portion that suppresses rotation of the tapered plate portion by fitting the fitted portion of the fastening taper washer on the inclined surface side of the fixed plate portion. Structures made of steel materials characterized by. 2. The inclined state of the inclined surface of the fixing plate portion when the fixing plate portion made of a steel material having an inclined surface and formed in a flange shape is brought into contact with another member and fastened to each other with bolts. A fastening taper washer attached to the bolt for correction and secure fixation, wherein a taper plate portion that corrects the inclined state of the inclined surface of the fixing plate portion and forms a surface orthogonal to the axial direction of the bolt. A fastening taper washer for fastening, comprising: a fitting portion which is provided on the tapered plate portion and which fits into a fitted portion on the inclined surface side of the fixed plate portion to suppress rotation of the taper plate portion. .