JP2000096705A - Intersection joint of substrate metal fitting for building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an intersection joint by which an intersection part of lip channels can be firmly fixed without welding and further, the fixed position can be easily changed after fixing. SOLUTION: This joint is provided with a receive piece 4 which can be engaged astride both lips 1a of a base groove 1, a clamp piece 5 connected through bolts and nuts detachably fitted to the receive piece 4, and a retaining member 6 connected through second bolts and nuts to the clamp piece 5. The lip part 1a of the base groove 1 is held by the receive piece 4 and the clamp piece 5 and the lips 2a, 3a of the fixing steel members 3, 3 are helt by the clamp piece 5 and the retaining member 6 and connected together.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint for an intersection of a base metal fitting for a building for connecting another lip channel steel to a lip channel steel at right angles.

[0002]

2. Description of the Related Art Conventionally, lip grooved steels have been mainly used as base metal fittings for ceilings and the like, and lip grooved steels used for ceilings and the like are usually stretched vertically and horizontally. For this reason,
Intersections where the lip grooved steels intersect occur in multiple places,
At this intersection, the end of the other lip channel steel was fixed to the side surface of one lip channel steel by welding.

[0003]

However, fixing the lip grooved steel by welding is a troublesome operation, and there is a problem that the operation cost increases accordingly. Further, when a position to be welded is mistaken for some reason or when a position to be welded has to be changed due to a design change or the like occurs, an operation of separating the welded portion and performing welding again is necessary.

[0004] The present invention solves the above-mentioned conventional problems,
An object of the present invention is to provide a joint for a crossing part which can firmly fix a crossing part of a lip grooved steel without welding, and which can easily change a fixing position after fixing.

[0005]

In order to achieve the above object, the present invention relates to a joint for an intersection of a base metal fitting for a building, wherein another lip channel steel is connected to another lip channel steel at a right angle. A receiving member engageable across both lip portions of the first member and a first member detachably attached to the receiving member.
And a pressing member connected to the holding member via a second connecting means detachably attached to the holding member, wherein the lip portion of the lip grooved steel is formed in the receiving member. And the lip portion of the another lip grooved steel is sandwiched and connected by the holding member and the pressing member.

In the present invention, the receiving member is formed in a parallelogram, the diagonal of the small angle of which is approximately 45 degrees, and the width of the longitudinal side is within the inner width of the lip grooved steel. It is effective if it is wider than the interval.

Further, according to the present invention, the holding member includes a center holding portion provided at a central portion for holding the lip grooved steel, and an end portion holding the another lip grooved steel provided at an end thereof. It is effective if a step is formed between the central sandwiching portion and the end sandwiching portion.

Further, the present invention is effective when the size of the step is set to be slightly larger than the thickness of the lip grooved steel. Furthermore, the present invention is effective when the pressing member has an area larger than the holding member.

Further, the present invention is effective when the holding member is formed with a fitting portion into which the central holding portion of the holding member is fitted. Furthermore, the present invention is effective when the pressing member is formed with a bent portion along the outer surface of the another lip grooved steel.

Still further, according to the present invention, the first and second connecting means are bolts and nuts, and the receiving member, the holding member, and the holding member are formed with holes for bolt penetration, respectively. Is effective.

Further, the present invention is effective when the bolt screw portion is screwed into a hole formed in the receiving member, the holding member and the pressing member.

[0012]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is an exploded perspective view of an intersection joint according to the present invention.

In FIG. 1, reference numeral 1 denotes a lip grooved steel in which a steel plate is formed in a substantially C-shaped cross section.
On the other hand, the cross joint of the present invention is used to vertically fix another lip grooved steel 2, 3 (the lip grooved steel 3 is omitted in FIG. 1) of the same size and the same shape on its side. I do. This lip channel steel is a JIS standard product, and although there are a plurality of types having different sizes, the shape and dimensions thereof are determined. In addition, hereafter, in order to make the description easy to understand, the lip channel steel 1 is referred to as basic steel 1 and the other lip channel steels 2 and 3 are referred to as fixed steels 2 and 3.

The cross joint according to the present embodiment is composed of the basic steel 1
A receiving piece 4 as a receiving member arranged on the side, a holding piece 5 as a holding member arranged in a direction intersecting with the basic steel 1,
A holding member 6 provided so as to cover the holding piece 5.

As shown in FIGS. 1 and 2, the receiving piece 4 is formed in a parallelogram, and its small angle is 45 degrees.
It is formed every time. In addition, the width of the opposite side of the receiving piece 4 is set to be equal to or slightly shorter than the width between the inner walls of the basic steel 1, whereby the receiving piece 4 has both side edges hanging on the lip 1 a of the basic steel 1. It has become. further,
The receiving piece 4 has the width W2 of the opposite side in the short direction and the lip 1 of the basic steel 1.
The width is set smaller than the width of the space formed between a.

The holding piece 5 has a center holding portion 5a provided at the center portion for holding the basic steel and an end holding portion 5b provided at its end portion for holding the fixed steels 2 and 3. ing. As shown in FIGS. 1 and 3, the central sandwiching portion 5a is set so that its longitudinal width W3 is equal to or slightly longer than the width of the basic steel 1, and the longitudinal sandwiching width of the end sandwiching portion 5b. W4 is set to be equal to or slightly shorter than the width between the inner walls of the fixed steels 2 and 3. In addition, the width W5 in the short direction of the central sandwiching portion 5a which is the same direction as the longitudinal direction of the end sandwiching portion 5b.
Is set shorter than the width W4. And the holding piece 5
Has a step 5c between the center sandwiching portion 5a and the end sandwiching portion 5b.
Is formed, and the size of the step 5c is set to be slightly larger than the thickness of the fixed steels 2 and 3.

As shown in FIGS. 1 and 4, the holding member 6 has a larger area than the holding piece 5 so that the holding piece 5 can be completely covered. A fitting hole 6a is formed as a fitting portion into which the central holding portion 5a is fitted. That is, the longitudinal width W6 of the fitting hole 6a is equal to or slightly longer than the longitudinal width W3 of the center sandwiching portion 5a, and the short width W7 of the fitting hole 6a is the short width of the central sandwiching portion 5a. It is set equal to or slightly longer than W5. The holding member 6 has a bent portion 6b formed along the outer surface of the fixed steels 2 and 3, and the bent portion 6b has a U-shaped notch 6c with which the basic steel 1 is engaged. Have been. Further, the width W8 between the bent portions 6b of the holding member 6 is set to be equal to or slightly longer than the width of the fixed steels 2 and 3, and the bent portions 6b are attached to the outer surfaces of the fixed steels 2 and 3 when attached. It is set to touch.

The receiving piece 4, the holding piece 5 and the holding member 6 are fixed by bolts 7 and nuts 8 as connecting means shown in FIG. The bolt 7 and the nut 8 are provided in three sets, and the central bolt 7 and the nut 8 are first connecting means, which connect the holding piece 5 and the receiving piece 4 to each other. The lip 1a of the basic steel 1 is clamped and then fixed. The left and right bolts 7 and nuts 8 are
The connecting means is connected to the holding member 6 and the holding piece 5, and the holding members 6 and the holding piece 5 hold the lips 2a and 3a of the fixed steels 2 and 3 so as to be fastened and fixed. I have. For this reason, a through hole 4a through which the bolt 7 penetrates is formed in the center of the receiving piece 4, and the bolt 7 penetrates the holding piece 5 through the center holding portion 5a and the left and right end holding portions 5b. A through-hole 5 d is formed, and the holding member 6 has a through-hole 5 d formed at the end portion 5 b of the holding piece 5.
A through-hole 6d is formed coaxially with.

Next, a description will be given of a method of attaching the joint for an intersection configured as described above. First, the holding piece 5 and the receiving piece 4 are connected with the bolt 7, and the nut 8 is screwed to the bolt 7 with a margin in the head and the space. The connection between the holding piece 5 and the receiving piece 4 is arranged such that the receiving piece 4 is positioned inside the fixed steel 2 or 3 of the basic steel 1 at the position where the fixed steel 2 or 3 intersects. At this time,
Since the width W2 of the receiving piece 4 is shorter than the width between the lips 1a,
Even when the holding piece 5 and the receiving piece 4 are connected, they can be arranged in the basic steel 1. Further, at this time, the central holding portion 5a of the holding piece 5 is placed on the basic steel 1. After that, when the bolt 7 is tightened, the size of the fitting hole 4a of the receiving piece 4 is appropriately set to rotate with the rotation of the bolt 7, so that the short side of the receiving piece 4 is on the inner surface of the basic steel 1. It comes into almost line contact and is positioned and fixed at this position. At this time, the holding piece 5
The lip 1a of the basic steel 1 sandwiched between the base member 1 and the receiving piece 4 is firmly fixed by bolts 7 and nuts 8.

Next, the holding member 6 is arranged so that the fitting hole 6a is fitted into the center holding portion 5a of the holding piece 5, and at this time, the basic steel 1 fits into the notch 6c of the holding member 6. . Then, the end holding portion 5b of the holding piece 5 and the holding member 6
Are connected by bolts 7, and nuts 8 are screwed into the bolts 7 with a sufficient space between the heads and the heads. After that, the fixed steel members 2 and 3 are interposed between the holding member 6 and the end holding portion 5b.
When one end of the fixing steel 2 is fastened to a position where one end of the base steel abuts against the outer surface of the basic steel 1 or in the vicinity thereof, the lip 2a, 3a of the fixed steel 2, 3 is clamped by the holding member 6 and the holding piece 5, and the bolt 7, nut 8 firmly fixed.

Thus, as shown in FIGS. 5 and 6,
The fixed steels 2 and 3 can be fixed to the basic steel 1. Further, in this way, the fixed steel 2
If it is desired to change the fixing positions of the fixed steels 2 and 3 after fixing the fixed steel 3, the central bolts 7 and nuts 8 can be loosened to fix the fixed steels 2 and 3 in the longitudinal direction of the basic steel 1. Since the slide joint can be slid along the direction, the fixed position can be changed without completely disassembling the cross joint.

Although the preferred embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, but can be variously modified. For example, in the above-described embodiment, the connecting means is constituted by the bolt 7 and the nut 8. However, the connecting means forms the fitting hole of the receiving piece and the fitting hole of the end holding portion 5 b of the holding piece 5 with the bolt. It may be threaded so as to be screwed. In this case, the work of screwing the nut to the bolt becomes unnecessary, and the workability is improved. Also,
Instead of threading the fitting hole of the receiving piece and the fitting hole of the end holding portion 5b of the holding piece 5, the cost increases but a press nut (common name) method in which the nut is fixed in advance can be used.

Further, in the joint for intersection in the above embodiment, the fixed steels 2 and 3 are fixed to the basic steel 1 and cross each other in a cross shape. The present invention can also be applied to intersections in a T shape that fixes only

[0024]

According to the present invention, according to the present invention, another lip grooved steel can be fixed to the lip grooved steel by crossing it without welding. In addition, the work is simple, and the fixed position can be easily changed.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a cross joint according to the present invention.

2A is a front view of a receiving piece, and FIG. 2B is a side view thereof.

3A is a front view of a holding piece, and FIG. 3B is a side view of the holding piece.

4A is a front view of a receiving piece, and FIG. 4B is a side view thereof.

FIG. 5 is a perspective view showing a state after fixing of the intersection joint according to the present invention.

FIG. 6 is a side view showing a state after fixing of the intersection joint according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Basic steel (lip groove type steel) 2, 3 Fixed steel (another lip groove type steel) 1a, 2a, 3a Lip 4 Receiving piece 5 Holding piece 6 Holding member 7 Bolt 8 Nut

Claims (9)

[Claims] 1. A joint for an intersection of a base metal fitting for a building for connecting another lip channel steel to a lip channel steel at a right angle, comprising: a receiving member engageable across both lip portions of said lip channel steel; A lip having a holding member connected to the receiving member via first connecting means detachable from the receiving member, and a pressing member connected to the receiving member via second connecting means detachable from the holding member; A lip portion of the channel steel is sandwiched between the receiving member and the holding member, and a lip portion of the another lip channel steel is sandwiched and connected between the holding member and the pressing member. Joint for intersection. 2. The receiving member is formed in a parallelogram,
2. The joint according to claim 1, wherein the diagonal of the small angle is approximately 45 degrees, and the width in the longitudinal direction is wider than the distance between the lips within the inner width of the lip channel steel. 3. The holding member has a center holding portion provided at a central portion for holding the lip groove steel, and an end holding portion provided at an end of the another lip groove steel for holding the other lip groove steel. The joint for an intersection according to claim 1, wherein a step is formed between the center sandwiching portion and the end sandwiching portion. 4. The joint for an intersection according to claim 3, wherein the size of the step is set to be slightly larger than the thickness of the lip grooved steel. 5. The joint according to claim 1, wherein the pressing member has an area larger than the holding member. 6. The cross joint according to claim 1, wherein the holding member is formed with a fitting portion to which a central holding portion of the holding member is fitted. A joint for intersections, characterized in that: 7. A joint for a crossing part, wherein the holding member is formed with a bent portion along an outer surface of the another lip grooved steel. 8. The cross joint according to claim 1, wherein the first and second connecting means are bolts and nuts, and the receiving member, the holding member, and the holding member each have a bolt penetrating therethrough. A joint for an intersection, wherein a hole is formed. 9. The cross joint according to claim 8, wherein a screw portion of the bolt is screwed into a hole formed in the receiving member, the holding member, and the holding member. A special joint for intersections.