JP3215073B2 - 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 edge is very shallow enough to be able to slightly engage two of the outer four corners of the lip channel. When fastening the back plate portion side of the channel steel, it is fastened with a general-purpose bolt and nut using the fastening hole provided on the back plate portion of the channel steel and the fastening hole on the L-shaped connection hardware side. Therefore, it is possible to sufficiently fix the channel steel at a predetermined position in a predetermined direction even if the both-side curved corners of the channel steel are fitted shallowly between the curved rising side portions of the L-shaped connection hardware. However, when fastening the lip portion side of the channel steel, since a fastening hole cannot be provided on the channel steel side, a horizontally long washer that presses the inner surfaces of both lip portions of the channel steel is provided. Since the bolts are fastened using special bolts, it is possible to secure the channel steel only by fitting the two curved corners of the channel steel shallowly between the curved rising sides of the L-shaped connection hardware. Cannot be positioned.

[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. Are provided with inclined wall portions 4a, 5a only at both corners on the side where the lip portions 6, 7 are provided.
The L-shaped main body 1 includes a 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. The channel steels A and B contact the convex curved surfaces 4b and 5b at both corners on the back plate portion 3 side.
Curved side portions 1 that do not protrude outward from both side walls 4 and 5
0a to 11b, low surface portions 12 and 13 formed one step lower inside the curved side portions 10a to 11b, and the channel steels A and B formed at the center of the low surface portions 12 and 13.
Projecting portions 14 and 15 fitted between the two lip portions 6 and 7,
Fastening holes 16, 17 provided in these protrusions 14, 15
The projections 14 and 15 have back plate support surfaces 14a and 15a for supporting the back plate 3 of the channel steels A and B together with the curved side portions 10a to 11b. Is
It comprises a bolt 18 and a nut 19 which can penetrate the fastening holes 16 and 17, and one of the bolts 18 and the nut 19 is fitted into the channel steels A and B and both lip portions thereof. A horizontally long washer portion 20 that can be abutted on the inner surfaces of the 6, 7
The two curved side portions 10a to 11b and the protrusions 14, 1
The lip portions 6 and 7 of the channel steels A and B are fitted to the lower surface portions 12 and 13 which are one step lower between the lip portions 6 and 7 so as to be positioned.

[0006] The horizontal washer 20 of the fastener 2 is a bolt 1
In the case where the bolt is provided on the side of the L-shaped body 1, the locking holes 16, 17 of each of the shaped steel mounting plates 8, 9 of the L-shaped main body 1 are provided with a bolt rotation preventing engaging surface 26. When the end portion 20 is in the fastening position in which both end portions thereof are in contact with the inner surfaces of the lip portions 6 and 7 in the lip-shaped channel steels A and B, the end portions 20 contact the bolt rotation preventing engagement surfaces 26 of the fastening holes 16 and 17. A contacting flat side surface (side surface of the square shaft portion 25) can be provided.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1 to 3, reference numeral 1 denotes an L-shaped main body, and reference numeral 2 denotes 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 Among the four corners in a cross section perpendicular to the length direction, inclined walls 4a and 5a are provided at both corners on the side where the lip portions 6 and 7 are present.

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. A, B back plate 3
Curved side portions 10a, 10b, 11a, 11b that abut against the convex curved surfaces 4b, 5b at both corners of the side, but do not protrude outward from both side walls 4, 5 of the channel steels A, B; A lower surface portion 12, 13 formed one step lower inside the side portions 10a-11b, and a fitting formed between the lip portions 6, 7 formed at the center of the lower surface portions 12, 13 and of the channel steels A, B. Projections 14 and 15 and fastening holes 16 and 17 provided in the projections 14 and 15 are provided.
Numerals 4 and 15 are rectangular, and the back plates 3 of the channel steels A and B are connected to the curved side portions 10a and 10b or 11a and 11b.
And back plate support surfaces 14a and 15a for supporting the same.

The fastener 2 is provided with the fastening holes 16 or 17.
And a nut 19 that can penetrate the bolt, and the bolt 18 is provided with a horizontally long washer portion 20. The horizontally long washer portions 20 are fitted to the inside of the channel steels A or B, and can be pressed against the inner surfaces of both lip portions 6 and 7 by pressing portions 21a and 2a.
1b is provided at both ends. More specifically, the bolt 18 is formed by projecting a screw shaft into a sail column shape at the center of a horizontally long washer portion 20 formed by pressing a single iron plate into a boat shape.

Reference numeral 22 denotes a back plate portion 3 of the channel steel A or B.
This is a general-purpose bolt and nut used when connecting the steel plate mounting section 8 or 9 to the section.

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 convex curved surfaces 4b, 5b on both sides of the back plate portion 3 are fitted and abutted on the curved side portions 10a, 10b on both sides of the steel mounting plate portion 8, and the center of the back plate portion 3 is shaped into a shaped steel mounting plate portion. The fastening hole 23 drilled in the back plate 3 of the channel steel A and the fastening hole of the shaped steel mounting plate 8 in a state in which the projection 14 contacts the back plate support surface 15a of the projection 8. 16 and is connected to the shaped steel mounting plate portion 8 by a general-purpose bolt / nut 22.

The channel steel B has both lip portions 6 and 7 fitted to a low surface portion 13 between the curved side portions 11a and 11b on both sides of the profiled steel mounting plate portion 9 and the protruding portion 15, and The horizontal washer 20 of the bolt 18 of the fastener 2 previously mounted using the fastening hole 17 is connected to the two lip portions 6 of the channel steel B.
The nut 19 is fastened by loosely fitting into the channel steel B from the groove between the seven and turning the bolt 18 by 90 degrees so that the length direction of the horizontally long washer portion 20 is oriented in the transverse direction of the channel steel B. And the pressing portions 21a and 21b at both ends of the horizontally long washer portion 20 and the L-shaped main body 1
The lip portions 6 and 7 of the channel steel B are sandwiched between the section steel mounting plate 9 (low surface portion 13) in FIG.

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 22 as described above, the two channel steels A and B are connected to each other in a T-shape or an L-shape. At this time, the channel steel A has the convex curved surfaces 4b, 5b on both sides of the back plate portion 3 fitted into the curved side portions 10a, 10b on both sides of the shape steel mounting plate portion 8, and Channel steel B
The lip portions 6 and 7 are fitted to the low surface portion 13 of the section steel mounting plate section 9 so that the outer side surfaces of the side walls 4 and 5 of the respective channel sections A and B are positioned flush. Further, since nothing including the L-shaped body 1 protrudes outside the side walls 4 and 5 of each of the channel steels A and B, one side of each of the channel steels A and B as shown by the phantom line. For example, the wall plate 24 can be attached to the side wall portion 5 by abutting it.

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. .

In the above embodiment, the bolt 18 of the fastener 2 is used.
The sideways washer 20 that fits into the channel steel is provided on the side, but the sideways washer 20 is provided on the nut 19 side, and the fastener 2 may be configured by combining general-purpose bolts. Of course, in this case, the nut 19 having the horizontally long washer portion 20 is used by fitting it into the channel steels A and B.

In the embodiment shown in FIG. 1, when the lip portions 6, 7 of the channel steels A, B are fitted to the low surface portions 12, 13 of the shape steel mounting plate portions 8, 9, the low surface portions 12,1
3 and the convex curved portions 4c, 5 on both sides of the rising sides on the side of the curved side portions 10a-11b and the lip portions 6, 7 of the channel steels A, B.
c and the inner edges of the lip portions 6 and 7 of the channel steels A and B are in contact with each other. As long as the conditions are satisfied, the channel steel A, in which the lip portions 6, 7 are fitted to the lower surface portions 12, 13 of the shape steel mounting plate portions 8, 9, is used.
Positioning of B is possible.

The bolt 18 or the nut 19 of the fastener 2
The sideways washer 20 must be positioned transversely in the channels A, B in use. In order to facilitate the positioning of the horizontally-long washer portion 20, for example, the length of the horizontally-long washer portion 20 is set to the inclined wall portion 4 of the channel steels A and B.
a, 5a or slightly longer than the inner width between the side walls 4 and 5, when the horizontally long washer portion 20 is rotated in the rotation direction when the fastener 2 is fastened, both ends thereof are groove-shaped. Steel A, B
Can be configured to abut against the inclined wall portions 4a and 5a or the inner side surfaces of the side wall portions 4 and 5 to prevent further rotation.

At the bolt 18 side of the fastener 2, a horizontally long washer 20
Is provided, the horizontally long washer portion 20 is formed by channel steels A and B.
In order to position the bolt 18 in the transverse direction, as shown in FIGS. 4 and 5, a square shaft portion 25 is provided on the base side of the bolt 18;
The fastening holes 16 and 17 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 25 are fitted so that they cannot rotate. By forming a bolt rotation preventing engaging surface 26 that engages with the flat side surface, the bolt 18 is moved toward the inside of the channel steels A and B to disengage the square shaft portion 25 from the fastening hole 16 or 17. The bolt 18 (horizontal washer 20) can be configured to be rotatable.

In use, with the horizontal washer 20 in a position parallel to the length direction of the channels A and B, the lips 6 and 7 of the channels A and B are used to attach the profile mounting plate. Part 8,
9 so as to be fitted to the lower surface portions 12 and 13, and in such a state, the bolt 18 is moved toward the inside of the channel steels A and B to separate the square shaft portion 25 from the fastening holes 16 or 17. After that, the bolt 18 is turned 90 degrees to turn the direction of the horizontally long washer portion 20 in the transverse direction of the channel steels A and B, and the bolt 18 is pulled out to make the square shaft portion 25 into the fastening hole 16 or 17. And the side surface of the square shaft portion 25 is engaged with the bolt rotation preventing engagement surface 26 inside the hole to fix the direction of the horizontally long washer portion 20 in the transverse direction of the channel steels A and B. In this state, the nut 19 is fastened, and the both lip portions 6, 7 of the channel steels A, B are attached to the shaped steel mounting plate portion 8 or 9 of the L-shaped main body 1 at both ends pressing portions 21a, 21b of the horizontally long washer portion 20. Fix it.

In the case of adopting the above configuration, as shown in FIGS. 4 and 5, the fastening holes 16, 1 of the shaped steel mounting plates 8, 9 are used.
A cylindrical wall portion 27 is integrally formed from the periphery of 7 to the inner space side of the protruding portions 14 and 15 so that the depth of the fastening holes 16 and 17 is greater than the plate thickness of the shaped steel mounting plate portions 8 and 9. This ensures that the square shaft portion 25 of the bolt 18 does not protrude outside the fastening holes 16, 17 and securely engages with the bolt rotation preventing engaging surface 26 inside the fastening holes 16, 17. it can.

[0021]

As described above, according to the present invention, when the grooved steel with lip is attached to the L-shaped main body by bringing the bottom plate side into contact with the shaped steel mounting plate, the bottom plate of the grooved steel is used. The convex curved portions of both corners on the side of the section are fitted and positioned between the curved side sides of the left and right sides of the shaped steel mounting plate section, and the grooved steel section with lip is positioned.
When the lip portion side is attached to the L-shaped body by abutting against the shaped steel mounting plate portion, both lip portions of the channel steel are connected to the center protruding portion of the curved side portion of the shaped steel mounting plate portion. By positioning each channel steel by fitting it to the low surface portion, and fastening each channel steel to the L-shaped body by one general-purpose bolt nut or fastener having a horizontally long washer, the outer surfaces of both channel steels are formed. The connection can be made in a T-shape or an L-shape in a state where they are flush with each other.

Further, the channel steel, which is unstable in positioning because it is fastened by using a fastener having a horizontally long washer, that is, the lip side is brought into contact with the shaped steel mounting plate of the L-shaped body. Since the channel steel to be attached has inclined walls at both corners of the lip, the depth of the low surface portion where the two lips are fitted can be made relatively deep. Therefore, the lip portion side is brought into contact with the shaped steel mounting plate portion of the L-shaped main body, and the channel steel fastened by the fastener having the horizontally long washer portion is easily and reliably positioned at a predetermined position, and Can be attached to

Further, the channel steel which is mounted by abutting the back plate side to the profile steel mounting plate portion has not only both corners but also a central portion which is fastened with a general-purpose bolt and nut. Since the fastening can be performed while being supported by the back plate support surface of the protrusion formed on the side, the channel steel can also be securely and firmly fastened.

According to the second aspect of the present invention, when the horizontal washer portion of the fastener is provided on the bolt side, the direction of the horizontal washer portion is set such that both ends thereof abut against the inner surface of the lip portion. It can be securely fixed in the posture, 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 plan view showing an L-shaped main body according to the embodiment.

FIG. 4 is a longitudinal sectional side view of a main part showing a second embodiment of the present invention.

FIG. 5 is a plan view of an L-shaped main body according to the second embodiment.

[Explanation of symbols]

 A, B Rip-shaped channel steel 1 L-shaped body 2 Fastener 3 Back plate portion of lip-shaped channel steel 4,5 Side wall portion of lip-shaped channel steel 4a, 5a Slant wall portion of channel steel 6,7 Lip Rip section of channel steel with groove 8,9 Shaped steel mounting plate part of L-shaped body 10a-11b Curved side edge of shaped steel mounting plate part 12,13 Low surface part of shaped steel mounting plate part 14,15 Shaped steel mounting plate Projecting portions 16, 17 Fastening holes 18 Fastening bolts 19 Fastening nuts 20 Horizontal washer portions 21a, 21b Pressing portions at both ends of the horizontal washer portion 22 General-purpose bolt nuts 23 Fastening holes 24 Wall plate 25 Bolts Square shaft part (flat side surface) 26 Engagement surface for bolt rotation prevention 27 Cylindrical wall part

──────────────────────────────────────────────────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 (2)

(57) [Claims] 1. A combination of a lip-shaped channel and a connecting device, wherein the lip-shaped channel is provided at two corners on a side having a lip portion among four corners in a cross section perpendicular to the longitudinal direction. Only with an inclined wall, and the connecting device is L
The L-shaped body includes two shaped steel mounting plate portions connected in an L-shape, and each of the shaped steel mounting plate portions is provided on the back plate side of the channel steel. A curved side portion that abuts on the convex curved surface of both corners but does not protrude outward from both side walls of the channel steel; a low surface portion formed one step lower inside the curved side edges; A projection formed at the center and fitted between both lip portions of the channel steel, and a fastening hole provided in the projection, the projection includes a back plate portion of the channel steel. A back plate supporting surface for supporting both the curved side portions; and a fastener comprising a bolt and a nut capable of penetrating the fastening hole, and one of the bolt and the nut includes a channel steel. A horizontally long washer portion is provided which is fitted into the inside and can contact the inner surfaces of both lip portions, and one side between the both curved side portions and the protruding portion is provided. Shaped steel and adapted to be positioned by fitting the both lip of the interposition steel low surface becomes lower and its attached devices. 2. A horizontal 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 is provided with an engaging surface. When the horizontal washer portion is in a fastening position in which both ends thereof are in contact with the inner surface of the lip portion in the lip-shaped channel steel, flat side surfaces are provided to abut against the bolt rotation preventing engagement surface of the fastening hole. The shaped steel according to claim 1 and a connecting device therefor.