JP3215072B2 - Section steel and its connection equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lip-shaped channel steel which can be used when constructing a window frame or the like, and a connecting device for connecting the steel bars in a T-shape or an L-shape. Things.

[0002]

2. Description of the Related Art In the case of constructing a window frame or the like by combining grooved steel with a lip, an L-shaped connecting metal is brought into contact with a corner formed between T-shaped or L-shaped shaped steels. The shaped steel is joined to the L-shaped connection hardware by a fastener such as a bolt and a nut. In this case, it is necessary to position both side bars so that the side surfaces thereof are flush with each other, and it is necessary to prevent the L-shaped connection hardware from protruding at least on the side where the wall plate comes into contact. In addition, there are a case where the back plate portion of the lip-shaped channel steel comes into contact with the L-shaped connection metal and a case where the lip portion side of the lip-shaped channel steel comes into contact with the L-shaped connection metal.

[0003] As a section steel connection device which can be used in the above-described situation, both sides of the L-shaped connection metal are curved toward the section steel support side, and a grooved steel section with a lip is provided between both curved rising side sides. A configuration was considered in which the channel steel was positioned on the L-shaped connection hardware by fitting.

[0004]

However, as described above, the L-shaped connecting hardware must be configured so as not to protrude from the side surface of the channel steel, and therefore, the L-shaped connecting hardware is formed on both sides of the L-shaped connecting hardware. The curved side edges must be very shallow enough to be able to slightly engage two of the outer four corners of the lip-shaped channel, and high precision Not only is it required, but also it is very difficult to reliably position the shaped steel on the L-shaped connecting hardware before the fastening work, and it becomes impossible to perform reliable positioning due to variations in the radius of curvature of the curved corners of the channel steel. There was a problem.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a shaped steel and a connecting device therefor which can solve the above-mentioned conventional problems. Is a combination of lip-shaped channel steels A and B and a connecting device thereof, wherein the lip-shaped channel steels A and B have four corners in a cross section perpendicular to the length direction. With inclined wall portions 4a to 5b,
The connecting device comprises an L-shaped main body 1 and a fastener 2. The L-shaped main body 1 is formed by connecting two shaped steel mounting plate portions 8 and 9 in an L-shape. 9 has a fastening hole 1
2 and 13 are provided one by one, and the channel steels A and B are provided on both sides of each shaped steel mounting plate portion 8 and 9 respectively.
Abutting against the two-sided inclined walls 4a, 5a on the sides of the lip portions 6, 7 or the two-sided inclined walls 4b, 5b on the side of the back plate 3, but from the side walls 4, 5 of the channel steels A, B. Inclined rising wall portions 10a to 11b which do not protrude outward are formed, and the fastener 2 is a bolt 14 which can pass through the fastening holes 12 and 13.
And the nut 15, and the bolt 14 and the nut 15
One of them is provided with a horizontally long washer portion 16 which is fitted into the channel steels A and B and can be brought into contact with the inner surfaces of the lip portions 6 and 7.

In implementing the above-described apparatus of the present invention, the horizontal washer 16 of the fastener 2 has a width smaller than that of the lip-shaped channel steels A and B, and a length of the lip-shaped channel steel A. , B so as to prevent the bolt 14 or the nut 15 of the fastener 2 from rotating in the shaped steel during the fastening operation. Can be configured. In the case where the horizontally long washer portion 16 of the fastener 2 is provided on the bolt 14 side, the fastening hole 1 in each of the shaped steel mounting plate portions 8 and 9 of the L-shaped body 1 is used.
The bolt 14 is provided with an engaging surface 27 for preventing the rotation of the bolt, and the bolt 14 has the horizontally-long washer portion 16 inside the lip-shaped channel steels A and B and both ends thereof on the inner surfaces of the lip portions 6 and 7. A flat side surface (a side surface of the square shaft portion 26) that comes into contact with the bolt rotation preventing engagement surface 27 of the fastening holes 12 and 13 when the fastener is in the contacting posture is provided. 14 can be configured to be prevented from rotating.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the accompanying drawings.
Is an L-shaped main body, and 2 is a fastener. A and B are lip-shaped channel steels of the same size to be connected to each other (hereinafter, abbreviated as channel steels), each of which is a back plate portion 3, both side wall portions 4, 5, lip portions 6, 7, and Inclined walls 4a, 4b formed at four corners in a cross section perpendicular to the length direction;
5a and 5b.

The L-shaped body 1 has two L-shaped mounting plate portions 8 and 9 connected in an L-shape, and each of the L-shaped mounting plate portions 8 and 9 has the grooved steel plate on both sides thereof. The lip portions 6 and 7 of A and B are in contact with the inclined wall portions 4a and 5a on both sides of the lip portions 6 and 7 or the back plate portion 3 on both sides of the inclined wall portions 4b and 5b. , 5 are formed so as not to protrude outward, and one fastening hole 12, 13 is provided at a central position in the width direction.

The fastener 2 is provided with the fastening holes 12 or 13.
, And a nut 15. The bolt 14 is provided with a horizontally long washer 16. The horizontally long washer portion 16 is fitted into the inside of the channel steel A or B and is a pressing portion 17a, 1 which can abut on the inner surfaces of the lip portions 6, 7.
7b are provided at both ends. More specifically, the horizontally long washer portion 16 is made of a cross-sectional gate member having a width smaller than the width of the groove between the lips 6 and 7 of the channel steels A and B.
The bolt 14 is inserted into the center of the top plate 19, and the bolt head 14a is welded to the outside of the top plate 19 to integrate them together. The pressing portions 17a and 17b are formed.

The reinforcing ribs 2 are provided at the corners of the L-shaped bent portion between the both-shaped steel mounting plate portions 8 and 9 of the L-shaped main body 1.
1 is formed. Reference numeral 22 denotes a general-purpose bolt / nut used when connecting the back plate portion 3 of the channel steel A or B and the shape steel mounting plate portion 8 or 9.

In the example shown in FIGS. 1 and 2, the back plate 3 of the channel steel A and the back plate 3 of the channel steel A are perpendicularly joined to the back plate 3 of the channel steel A. The L-shaped main body 1 is disposed at a corner between the lip portions 6 and 7 of the steel B to connect the two channel steels A and B together. More specifically, the L-shaped main body 1 is arranged at a corner between the back plate 3 of the channel steel A and the lip portions 6 and 7 of the channel steel B. The inclined rising wall portions 10a on both sides of the steel mounting plate portion 8,
With the inclined walls 4b, 5b on both sides of the back plate portion 3 being fitted and abutting between 10b, a fastening hole 23 drilled in the back plate portion 3 of the channel steel A and the shaped steel mounting plate portion By using the fastening holes 12 of FIG.

The channel steel B has a lip portion 6, between the inclined rising wall portions 11a and 11b on both sides of the shaped steel mounting plate portion 9.
7 are fitted and abutted on both side inclined wall portions 4a, 5a, and the horizontally long washer portions 16 of the bolts 14 of the fasteners 2 which have been mounted in advance using the fastening holes 13 are attached to the two lips of the channel steel B. The nut is loosely fitted into the channel steel B from the groove between the portions 6 and 7 and the bolt 14 is rotated by 90 degrees so that the length direction of the horizontal washer portion 16 is oriented in the transverse direction of the channel steel B. 15 and the pressing portions 17a and 17b at both ends of the horizontally long washer portion 16 and L
Channel steel B between the shape steel mounting plate 9 of the shape body 1
By being sandwiched between the lip portions 6 and 7, the lip portions 6 and 7 are connected to the shaped steel mounting plate portion 9.

As described above, by attaching the channel steels A and B to the L-shaped main body 1 with the fasteners 2 and the general-purpose bolt nuts 23, the channel steels A and B are connected to each other in a T-shape or an L-shape. At this time, each of the channel steels A and B is
Sides or lip portions 6 and 7 are fitted between the inclined wall portions 10a and 10b or 11a and 11b on both sides of the shaped steel mounting plate portions 8 and 9, respectively. , 5 are positioned flush with each other, and nothing protrudes outside the side walls 4, 5 of each of the channel steels A, B, including the L-shaped body 1. As shown in the figure, the wall plate 24 can be attached to one side of the channel steels A and B, for example, the side wall 5 side.

By using the fasteners 2 in place of the general-purpose bolts and nuts 23, the lip portions 6 and 7 of the grooved steel A are also attached to the shaped steel mounting plate 8 of the L-shaped main body 1. It can be mounted in contact. Further, by changing the fastener 2 to a general-purpose bolt / nut 23, the channel steel B can also be mounted by bringing the back plate portion 3 into contact with the shape steel mounting plate portion 9 of the L-shaped main body 1. . Further, the bolt 14 of the fastener 2 is connected to the general-purpose bolt 14 by the horizontal washer 1.
6, the bolt 14 may be formed by welding only the screw shaft to the horizontally long washer 16 in a T-shape. Further, both lip portions 6 of the channel steels A and B are attached to the horizontally long washer portion 16.
Protrusions that fit into the grooves may be formed between the grooves 7.

As shown in FIG. 3, a horizontally long washer 16 may be provided on the nut 15 side of the fastener 2. In this case, the horizontal washer 16 is welded to the ready-made nut 15, but the female screw hole may be formed directly in the horizontal washer 16 to configure the nut 15 with the horizontal washer. In any case, when the horizontally long washer portion 16 is provided on the nut 15 side, the nut 15 is disposed and used inside the channel steels A and B.

The bolt 14 side of the fastener 2 or the nut 15
The sideways washer 16 on the side must be positioned transversely in the channels A, B in use. In order to facilitate the positioning of the horizontal washer 16, as shown in FIGS. 3 and 4, the length of the horizontal washer 16 is changed to the inner width between the inclined walls 4 a, 5 a of the channel steels A, B or both side walls. When the horizontally long washer portion 16 is rotated in the rotation direction when the fastener 2 is fastened, both ends 25a and 25b thereof are slightly longer than the inner width between the portions 4 and 5, and both ends 25a and 25b are inclined walls of the channel steels A and B. Part 4a,
5a or the inner surface of both side wall parts 4 and 5 can be configured to be prevented from rotating further.

FIGS. 3 and 4 show the horizontally long washer portion 16 provided on the nut 15 side.
May be provided on the bolt 14 side.

A horizontal washer 16 is provided on the bolt 14 side of the fastener 2.
When the horizontal washer portion 16 is provided,
In order to position the bolt 14 in the transverse direction, as shown in FIGS. 5 and 6, a square shaft portion 26 is provided on the base side of the bolt 14;
The fastening holes 12 and 13 provided in each of the shaped steel mounting plate portions 8 and 9 of the L-shaped main body 1 are square holes into which the square shaft portions 26 are fitted so that they cannot rotate. By forming a bolt rotation preventing engagement surface 27 that engages with the flat side surface, the bolt 14 is moved toward the inside of the channel steels A and B to separate the square shaft portion 26 from the fastening hole 12 or 13. The bolt 14 (horizontal washer 16) can be configured to be rotatable.

In use, the channel washers A and B are placed on the section steel mounting plate 8 or 9 with the horizontally long washer 16 in a position parallel to the length direction of the channel steels A and B. Between the inclined rising wall portions 10a and 10b on both sides or 11a and 11
b, so that the bolts 1
4 is moved into the channel steels A and B to release the square shaft portion 26 from the fastening hole 12 or 13, and
By rotating it by 0 degrees, the direction of the horizontally long washer portion 16 is turned in the transverse direction of the channel steels A and B, and the bolt 14 is pulled out to fit the square shaft portion 26 into the fastening hole 12 or 13. By engaging the side surface of the square shaft portion 26 with the bolt rotation preventing engagement surface 27 inside the hole, the orientation of the horizontally long washer portion 16 is fixed in the transverse direction of the channel steels A and B. Into the pressing portions 17a at both ends of the horizontally long washer portion 16,
17b, the lips 6 and 7 of the channel steels A and B are connected to the L-shaped body 1
To the shape steel mounting plate portion 8 or 9.

In the case of adopting the above configuration, as shown in FIGS. 5 and 6, the fastening holes 12, 1 of the shaped steel mounting plate portions 8, 9 are used.
3 is made to protrude to the side opposite to the channel steel contact side, and a cylinder having a height that fits in the inner space of the protruding portion 28 from around the fastening holes 12 and 13 provided in the protruding portion 28. The rectangular wall portion 29 is integrally formed, and the depth of the fastening holes 12, 13 is made larger than the plate thickness of the shaped steel mounting plate portions 8, 9, so that the square shaft portion 26 of the bolt 14 is formed. , 13 can be reliably engaged with the bolt detent engaging surface 27 inside the fastening holes 12, 13, without protruding outside.

[0021]

As described above, according to the present invention, one grooved steel with a lip is fitted between the inclined rising wall portions formed on the left and right sides of the shaped steel mounting plate portion of the L-shaped body. By fastening with a fastener or one universal bolt and nut, regardless of the orientation when attaching the lip channel to the section mounting plate, the two lip channels can be replaced by 2
Using one fastener or one fastener and one general-purpose bolt or nut, or two general-purpose bolts and nuts, it is possible to securely connect them in a T-shape or L-shape with their outer surfaces flush with each other. it can.

Further, the lip-shaped channel steel is provided with inclined walls at four corners in a cross section perpendicular to its length, and the inclined steel formed on both sides of the shaped steel mounting plate of the L-shaped body. The rising wall portion is in contact with the two-sided inclined wall portion on the lip portion side or the two-sided inclined wall portion on the back plate portion side of the channel steel, but does not protrude outward from both side walls of the channel steel. Therefore, the fitting depth between the section steel mounting plate portion of the L-shaped body and the channel steel can be made sufficiently large, and the positioning action of the channel steel can be reliably performed. Therefore, on both sides of each of the section steel mounting plate portions of the L-shaped body, curved rising walls for positioning the section steel using the both-sided curved corners of the channel steel are stretched outside the channel steel. The L-shaped body is easier to manufacture than conventional products that must be formed with high precision so that they do not come out, and the positioning of the channel steel is not affected by slight variations in the dimensional accuracy of the channel steel. Can be performed reliably.

According to the second aspect of the present invention, there is no possibility that the horizontally long washer portion on the bolt side or the nut side of the fastener is rotated during the fastening operation and comes off from the lip portion of the channel steel. In addition, the fastening operation using the fastener can be easily and reliably performed.

According to the third aspect of the present invention, when the horizontally long washer portion of the fastener is provided on the bolt side, the orientation of the horizontally long washer portion is such that both ends thereof are in contact with the inner surface of the lip portion. And the fastening operation with the fastener can be performed more easily and reliably.

[Brief description of the drawings]

FIG. 1A is a longitudinal sectional side view showing a first embodiment of the present invention, and FIG. 1B is a longitudinal sectional front view of the same part.

FIG. 2 is a cross-sectional plan view of FIG. 1B.

FIG. 3 is a longitudinal sectional side view of a main part showing a second embodiment of the present invention.

FIG. 4 is a cross-sectional plan view of FIG.

FIG. 5 is a longitudinal sectional side view of a main part showing a third embodiment of the present invention.

FIG. 6 is a plan view of an L-shaped main body according to the third embodiment.

[Explanation of symbols]

 A, B Rip-shaped channel steel 1 L-shaped main body 2 Fastener 3 Back plate portion of lip-shaped channel steel 4,5 Side wall portion of lip-shaped channel steel 4a-5b Inclined wall at four corners of channel steel 6,7 Rip section of channel steel with lip 8,9 Shaped steel mounting plate section of L-shaped body 10a-11b Inclined rising wall section 12,13 Fastening hole 14 Fastener bolt 15 Fastener nut 16 Fastener horizontal washer 17a, 17b Pressing portions at both ends of the horizontally long washer portion 18 Engagement portion for positioning the shaped steel of the horizontally long washer portion 22 General-purpose bolt nut 23 Fastening hole 24 Wall plate material 25a, 25b Both ends of the horizontally long washer portion 26 Bolt square shaft portion (flat) Side surface) 27 Bolt detent engagement surface 28 Projection 29 Cylindrical wall

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masanobu Maezumi 3-4-27 Imazukita, Tsurumi-ku, Osaka-shi, Osaka Kunimoto Shokai Co., Ltd. (72) Inventor Tokuo Yoneya 3 Imazukita, Tsurumi-ku, Osaka-shi, Osaka (57) References JP-A-9-78704 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) E04B 1/58 506

Claims (3)

(57) [Claims] 1. A combination of a lip-shaped groove steel and a connecting device thereof, wherein the lip-shaped groove steel is provided with inclined wall portions at four corners in a cross section perpendicular to the length direction thereof. The connecting device comprises an L-shaped main body and a fastener. The L-shaped main body has two shaped steel mounting plate portions connected in an L-shape, and each of the shaped steel mounting plate portions has one fastening hole. In addition to the above, each side of each shaped steel mounting plate portion is in contact with the two-sided inclined wall portion on the lip portion side or the two-sided inclined wall portion on the back plate portion side of the channel steel. An inclined rising wall portion that does not protrude outward from both side walls of the steel is formed, and the fastener includes a bolt and a nut that can pass through the fastening hole, and one of the bolt and the nut has a groove. A horizontally long washer that fits inside the shaped steel and can abut the inner surfaces of both lips It is in the form steels and their attached devices. 2. The elongated washer of the fastener has a lateral width smaller than a groove width of the lip-shaped channel steel and a length longer than a distance between inner surfaces of both side walls of the lip-shaped channel steel. Shaped steel and its connection equipment. 3. A laterally elongated washer portion of the fastener is provided on a bolt side, a fastening hole in each of the shaped steel mounting plate portions of the L-shaped main body is provided with a bolt rotation preventing engagement surface, and the bolt has When the horizontal washer is in a fastening position in which both end portions thereof are in contact with an inner surface of the lip portion in the lip-shaped channel steel, a flat side surface is provided which is in contact with a bolt rotation preventing engagement surface of the fastening hole. The shaped steel according to claim 1 and a connecting device therefor.