JP2003293514A - Connection method of suspension bolt of ceiling or the like and suspension bolt connecting device of ceiling or the like - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connection method of a suspension bolt of the ceiling or the like and a connecting device manufactured by a press work or the like to reduce a unit cost, at the same time, easily and safely carrying out connection work at a garret or the like to reduce a construction cost and having sufficient suspension strength. <P>SOLUTION: Both upper and lower suspension bolts 2 and 3 are arranged in parallel with each other, the metal-made connecting device 1 having a long sideways cross section is overlapped with the overlap part, one suspension bolt 3 is forcedly pressed against the other suspension bolt 2 by a pressing means 7 shortening the direction of a long diameter inside of the connecting device 1, and screw sections 4 and 5 of both suspension bolts 2 and 3 are engaged and pressed with each other to connect both suspension bolts 2 and 3 to each other. As the pressing means 7, a wedge-like member 7a capable of being pushed into an allowance section 6 at least located on one side in the direction of the long diameter of the connecting device 1 or a bar- shaped tool capable of forming a locking torsional section in the allowance section 6 or a substance providing an inward and slant locking small projected piece to the inside of the connecting device 1 is used. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hanging bolt connector for a ceiling or the like.
Beams, joists, roof frames, etc. (hereinafter referred to as upper hanging base materials)
Therefore, the present invention relates to a connector for connecting suspension bolts (screw rods) for suspending a ceiling, a pipe support frame, and the like (hereinafter referred to as a ceiling) with an appropriate length.

[0002]

2. Description of the Related Art For example, in the construction work of a ceiling or the installation work of a pipe support frame, it is necessary to appropriately adjust and maintain the height and the horizontal state thereof depending on the situation of the construction site. for that reason,
Two or more bolts are used to suspend the ceiling or the like from the suspension base material above, and they are connected to an appropriate length.

Conventionally, for example, the following has been performed as means for adjusting / connecting the length of the hanging bolt. A) If one suspension bolt is insufficient in length, prepare two or more, and, for example, as shown in FIG. 21, one upper suspension bolt 2 on the upper suspension base material 17 and the other. The lower suspension bolt 3 is fixed to the ceiling 18 or the like so that the ceiling 18 or the like has an appropriate height or a horizontal shape, and the overlapping portions of both suspension bolts 2 and 3 are welded and connected. .
Reference numeral 21 indicates a welded portion.

(B) Further, as shown in FIG. 4 of Japanese Patent Publication No. 7-35684 and Japanese Patent Application Laid-Open No. 11-13345,
Both upper and lower suspension bolts are provided on the same line, and screwed into a turnbuckle type long nut for connection.

(C) Further, as shown in FIGS. 1 and 2 of Japanese Patent Publication No. 7-35684, the upper and lower suspension bolts are provided on parallel lines to form a rectangular parallelepiped connecting member. Both suspension bolts are screwed into and connected to the respective female screw bodies provided.

[0006]

[Problems to be Solved by the Invention] However, since the above-mentioned a) in which the upper and lower suspension bolts are connected by welding requires work in a high place such as an attic, it takes time to lift the welding device. There is also a risk of fire if there is flammable material underneath because of the sparks generated by welding.

[0007] The turnbuckle type long nut of the above (b) that connects both the upper and lower suspension bolts is not expensive because the unit price of the turnbuckle type long nut is not low. The cost is high.

Further, in the above-mentioned C) in which the upper and lower suspension bolts are connected by the rectangular parallelepiped connecting member, two female screw holes are formed in the rectangular parallelepiped connecting member, or two separate screw holes are formed. Since the female screw body of the book is inserted and fixed, the unit price is still low, and the construction cost is high in the construction using a large number of books.

An object of the present invention is to eliminate the problems of the above-mentioned conventional means for adjusting the length of a hanging bolt such as a ceiling. That is, the object of the present invention is to manufacture by press working etc. to reduce the unit price, to eliminate the trouble and danger due to welding in the attic, etc., the connection work can be done easily and quickly by one person and the construction cost can be reduced. Another object of the present invention is to provide a hanging bolt connector for a ceiling or the like that has sufficient hanging strength.

[0010]

[Means for Solving the Problems] I In the method for connecting a suspension bolt for a ceiling or the like according to the present invention, the upper and lower suspension bolts 2 and 3 to be connected are arranged in parallel, and the overlapping portions are made of metal and crossed. By engaging the laterally long connector 1 and shortening the major axis direction in the connector 1 by the pressing means 7, the threaded portions 4 and 5 of the two hanging bolts 2 and 3 are engaged and pressed against each other. The suspension bolts 2 and 3 are connected to each other.

II A connector for a suspension bolt such as a ceiling according to the present invention is made of a metal material and has a cross-sectional shape in which upper and lower two suspension bolts 2 and 3 for connection are arranged in parallel. It is an oval that can be fitted in and has a clearance 6 in the major axis direction.
And a pressing means 7 for engaging and press-contacting the screw portions 4 and 5 of the suspension bolts 2 and 3 in the fitted state with each other.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION In the above structure, it is preferable that the upper and lower suspension bolts 2 and 3 have the same diameter and the same screw pitch. Further, the metal material of the connecting tool 1 is an ordinary iron, steel, stainless steel or the like, as long as it can be formed into a tubular body having an oval cross section or a ring shape by press working or the like. Good.

The thickness of the tubular metal plate and the outer diameter of the ring-shaped metal wire vary depending on the thickness of the hanging bolts depending on the hanging load, but are used for the hanging bolts 2 and 3. When the outer diameter is generally about 8.0 to 9.0 mm (same below), the metal plate usually has a thickness of about 0.5 to 1.5 mm and the outer diameter of the metal wire is About 1.5 ~
It is good to set it to about 2.0.

When manufacturing the tubular connector 1, the means for joining the metal plate 11 to the tubular member having an oval cross section is as follows.
It may be curved into an elliptical cross section with a press or other processing machine, and then joined by hemming, crimping, bending, etc. with both end edges being overlapped (for example, FIG. 2, FIG. 3, FIG. 13, FIG. 14, FIG. 16, FIG. 17), but not limited thereto, and may be welded by abutting both end edges (see, for example, FIG. 18).

Further, when the connecting tool 1 is formed into a ring shape, the means for joining the metal wire into the ring shape having an elliptical cross section is curved into an elliptical cross section by a bending machine or another processing machine.
It may be welded by abutting both ends (see, for example, FIG. 5).
-See Figure 8). However, the invention is not limited to this, and the joining twisted portion 20 may be formed by twisting the both ends (see, for example, FIG. 10), or, although not shown, hook-shaped portions may be formed at both ends. May be locked.

The minor axis k of the inside of the oval cross section of the connector 1
Are those that can be fitted into the hanging bolts 2, 3, in other words, the hanging bolts 2, 3 can be inserted.
It should be slightly larger than the outer diameter d of (for example, FIG. 2, FIG. 5, FIG. 8, FIG. 10, FIG. 13, FIG. 17, FIG.
reference).

The major axis K inside the elliptical cross section is 1
One suspension bolt 2 can be engaged with another suspension bolt 3 in a state where it is engaged with one suspension bolt 2, in other words, another suspension bolt is inserted with one suspension bolt 2 being inserted. The hanging bolt 3 is also insertable, and the clearance 6 is formed longer than the sum of the outer diameters d of the two hanging bolts 2 and 3 (for example, FIGS. 2, 3, 5, and 8).・ See Fig. 10, Fig. 13, Fig. 14, Fig. 17, and Fig. 18.

The size of the clearance 6 varies depending on the pressing means 7 that presses one suspension bolt 3 toward the other suspension bolt 2 side. As the pressing means 7, one in which the connector 1 is formed into a tubular body or a ring shape and the wedge-shaped member 7a is press-fitted into the clearance portion 6 (see, for example, FIG. 8, FIG. 9, FIG. 10), or the connector 1 is tubular. As a body, a small projecting piece 7c for locking is formed on the inner side surface 8 thereof (for example, FIGS. 1, 3, 4
In FIG. 6, FIG. 7, and FIG. 9), it is usually good to set it to about 3 to 6 mm.

The above-mentioned wedge-shaped member 7a is pushed in between the inner side surface 8 and the hanging bolts 2, 3 in the clearance 6 of the connector 1, and one hanging bolt 3 is hung on the other. Anything that strongly presses to 2 may be used. The shape is preferably a gentle slope shape as a whole, but is not limited to this and may be a slope shape near the tip (see, for example, FIG. 1 and FIG. 4), which is also used in the meaning including this.

On the other hand, the connecting tool 1 is formed into a ring shape, the rod-shaped tool 7b is inserted and rotated as the pressing means 7, and the pressing torsion portion 9 is formed, so that one suspension bolt 3 is moved to the other suspension bolt 2 side. In the case of pressing (see, for example, FIG. 8, FIG. 9, and FIG. 10), it is necessary to increase the length of the clearance portion 6 in the major axis direction, and it is usually preferable to set it to about 12 to 20 mm.

Any of the above-described suspending bolt connectors 1 for ceilings or the like can be manufactured in advance by pressing a metal plate or a metal wire in a factory or the like, and can be easily welded by butt welding or the like. It can be manufactured quickly. Therefore, each of the above-described connecting tools 1 has a very low manufacturing unit price as compared with a conventional turnbuckle type long nut or one in which two female screw holes are formed in the connecting member.

Next, the method of connecting the ceiling bolts and the like of the present invention using the hanging bolts is as follows. Upper hanging base material 1
If the distance between 6 and the ceiling below is long and one suspension bolt is not enough, two or more suspension bolts 2, 3
It is necessary to connect and use, but in that case, the connector 1 according to the present invention is used.

That is, the upper hanging bolt 2 is hung vertically on the upper hanging base material 17 side, and the ceiling 18 and the pipe support frame 1 are provided.
The lower hanging bolt 3 is erected on the 9 side, and the connecting tool 1 according to the present invention is fitted to either one of the upper and lower hanging bolts 2 and 3. Connection tool 1 above
For a cylindrical body that is long in the longitudinal direction, one may be used (see, for example, FIG. 11 and FIG. 16 above), but for a short body and a ring-shaped body, two or more are used (for example, FIG. 1 and FIG. 4 ・ See Fig. 7).

The upper and lower suspension bolts 2 and 3 are arranged side by side, and the height position of the lower suspension bolt 3 is adjusted so that the ceiling or the like is at a desired height or horizontal, and one of them is used. Hold it with your hand. Then, with the other hand, connect the connecting tool 1
The two screw parts 4 and 5 are moved to a position where they are overlapped and engaged with each other and fixed.

For moving and fixing the connector 1 as described above, a) the connector 1 is a cylindrical body or a ring, and as the pressing means 7,
In the case where the wedge-shaped member 7a is inserted into the clearance portion 6,
The connecting tool 1 previously fitted to one of the suspension bolts 2
Is moved to a portion where both screw portions 4 and 5 are engaged with each other. Then, the wedge-shaped member 7a may be inserted into the clearance 6 of the connecting tool 1 and hit by, for example, a hammer to push it in.

By driving the wedge-shaped member 7a into the clearance 6, the one suspension bolt 3 is pressed toward the other suspension bolt 2 side in the connector 1, so that both suspension bolts 2,
In the connector 1, the screw parts 4 and 5 are strongly pressed against each other to be engaged and pressed to be connected (for example, as shown in FIG.
(See FIGS. 3, 4, and 6).

When two or more connecting tools 1 are used in the above, the loose parts 6 are fitted so as to be on both sides with the two hanging bolts 2 and 3 interposed therebetween, and each side has a wedge shape. Member 7a
It is better to drive (for example, FIGS. 1 and 4 above).
reference).

B) Also, in the case where the connecting tool 1 is ring-shaped and the rod-shaped tool 7b is inserted into the clearance portion 6 as the pressing means 7 and rotated to form the pressing torsion portion 9, one of the hanging bolts 2 is previously prepared. The connecting tool 1 fitted to the above is moved to a portion where both screw portions 4 and 5 are engaged with each other. Then, the rod-shaped tool 7b is attached to the clearance 6 of the connector 1.
By inserting and turning the
(FIG. 7), both suspension bolts 2 and 3 are tightened, and one suspension bolt 3 is pressed toward the other suspension bolt 2 side.

Now, the two hanging bolts 2 and 3 are connected to the connector 1.
Inside, the screw portions 4 and 5 are strongly pressed against each other to be engaged and locked to be connected (see, for example, FIGS. 7 and 9).

Also during this connection work, it is sufficient to grasp the upper and lower suspension bolts 2 and 3 with one hand, and insert the rod-shaped tool 7b into the clearance portion 6 of the connection tool 1 with the other hand and rotate it. Therefore, even one person can easily and quickly perform the above connecting work.
When using a simple wire for the connecting tool, hold the upper and lower suspension bolts with one hand and wind the wire around both suspension bolts with only the other hand, or twist the part near the end. You have to do it, and you can not work alone.

C) Further, even if the inner surface 8 of the clearance portion 6 of the connector 1 has the inwardly slanting small projecting piece 7c as the pressing means 7, the connection is preliminarily fitted. Ingredient 1
Is moved to a portion where both screw portions 4 and 5 are overlapped and engaged with each other.

When the connecting tool 1 is moved, the locking small projection 7c of the inner portion 8 of the clearance 6 is pushed outward against the elasticity, so that the movement can be performed without any trouble, but once. When moved to a predetermined position and stopped, one suspension bolt 3 is pressed toward the other suspension bolt 2 side by the inward elastic force of the locking small projection piece 7c. Therefore, the two suspension bolts 2 and 3 are connected to each other because the screw portions 4 and 5 are strongly pressed and engaged with each other in the coupling tool 1 to be engaged and locked (for example, in the above-mentioned figure). 11 ・ Fig. 12 ・ Fig. 17 ・
(See FIG. 18).

When the small projecting piece 7c for locking the connecting tool 1 is projected inwardly and obliquely upward, the upper end of the connecting tool 1 is the valley of the threaded portion 5 of the lower hanging bolt 3. Since the screw portion 5 is supported diagonally from below (see, for example, FIG. 11 above), the lower hanging bolt 3 can be more firmly hung.

When any one of the above-mentioned connecting tools 1 is used,
Since the connecting tool 1 and the upper and lower suspension bolts 2 and 3 are integrated into one body, and both screw portions 4 and 5 are strongly pressed and engaged / press-contacted with each other, the lower suspension The hanging bolt 3 is hung with sufficient strength on the upper hanging bolt 2.

Whichever connecting tool 1 according to the present invention is used, at the time of connecting work, both hanging bolts 2 and 3 are grasped and held by one hand, and the pressing means (7a, 7a,
7b, 7c) can be performed. Therefore, one worker can use both hands to perform the connection work easily and quickly, so unlike the conventional methods, there is no danger, and it does not take time and the connection work can be inexpensive even with multiple wires. Will be completed.

[0036]

1 to 20 show an embodiment of a hanging bolt connector 1 for a ceiling or the like according to the present invention.
As the upper and lower hanging bolts 2 and 3 here,
The lower hanging bolts 2 and 3 have the same diameter and the same screw pitch, and here, those having an outer diameter of 8.0 mm and a pitch of 1.25 mm are used.

First, the connector 1 shown in FIGS. 1 to 3 is of a cylindrical body, and here, a normal steel plate 10 having a thickness of about 0.5 mm is crossed in a vertically elongated shape having a height of about 25 mm. It is formed by press working into a cylindrical body having an elliptical surface. That is, an ordinary steel plate having a predetermined shape is curved by press working into an oval cross section, and both end edges are joined by hemming.

The oval cross section mentioned above is slightly larger than the outer diameter d of each hanging bolt 2, 3 so that the inner short diameter k can be fitted into each hanging bolt 2, 3, and here, Since the outer diameter of each of the suspension bolts 2 and 3 is 8.0 mm, it is about 8.2 mm, which is about 0.2 mm larger than that.

The major axis K of the inside of the cylindrical body is larger than the sum of the two outer diameters d of the suspension bolts 2 and 3 of 16.0 mm, and here the threaded portions 4 and 5 are engaged with each other. Considering that there is a minute, about 18.0m, which is about 3.0mm larger
m, and a clearance 6 is formed on one end side of the major axis K.

A wedge-shaped member 7a as a pressing means 7 can be inserted into the clearance portion 6, and the wedge-shaped member 7a is also made of ordinary steel here, and one end is thin and the other end is L-shaped. Have a section. The wedge-shaped member 7a
The thickness of is such that one suspension bolt 3 can be strongly pressed to the other suspension bolt 2 side when it is sufficiently inserted into the clearance portion 6, and here the maximum outer diameter is about 5. 0m
The thing of about m is used.

Although this connector 1 is vertically long, it is shorter than the portion where the threaded portions 4 and 5 of both suspension bolts 2 and 3 are engaged and joined with each other. Therefore, as shown in FIG. To 2
It is linked using books.

The connector 1 shown in FIGS. 4 to 6 is ring-shaped, and here, the ordinary steel wire 10 having an outer diameter of about 1.6 mm is curved to have an oval cross section, and both ends thereof are bent. Are joined by butt welding.

The above-mentioned oval cross section has an inner short diameter k.
Is slightly larger than the outer diameter d of each of the hanging bolts 2 and 3, and the outer diameter of each of the hanging bolts 2 and 3 is 8.0 mm. It is about 8.2 mm, which is about 0.2 mm larger than that.

The major axis K of the inside of the cylindrical body is larger than 16.0 mm, which is the sum of the two outer diameters d of the suspension bolts 2 and 3, and here the threaded portions 4 and 5 are engaged with each other. Considering that there is a minute, about 18.0m, which is about 3.0mm larger
m, and a clearance 6 is formed on one end side of the major axis K.

A wedge-shaped member 7a as a pressing means 7 can be inserted into the clearance portion 6, and the wedge-shaped member 7a is also made of ordinary steel here, and the one end is thin and the other end is L-shaped. Have a section. The wedge-shaped member 7a
As for the thickness of one of the suspension bolts, one suspension bolt 3 can be strongly pressed to the other suspension bolt 2 side when it is sufficiently inserted into the clearance portion 6, and here the maximum outer diameter is about 5.0 m.
The thing of about m is used.

Since this connecting tool 1 has a ring shape made of steel wire, it is shorter than the portion where the threaded portions 4, 5 of both suspension bolts 2, 3 are engaged and joined together. Two of them are connected as shown in FIG.

The connecting tool 1 shown in FIGS. 7 to 10 is also ring-shaped. Here, a normal steel wire having an outer diameter of about 1.6 mm is bent by a bending machine into a curved cross section and bent. The both ends are joined by welding as shown in FIG. 9, or the twisted portion 20 is formed and joined as shown in FIG. In the figure, reference numeral 15 indicates a joint portion.

In the above-mentioned oval cross section, the minor axis k on the inside is slightly larger than the outer diameter d of each hanging bolt 2, 3 so that it can be fitted into each hanging bolt 2, 3. Since the outer diameter of each of the hanging bolts 2 and 3 is 8.0 mm, it is about 8.2 mm, which is about 0.2 mm larger than that.

The major axis K of the inside of the cylindrical body is larger than 16.0 mm, which is the sum of the two outer diameters d of the suspension bolts 2 and 3, but here the rod-shaped tool 7b is inserted. About 28.0 mm, which is about 13.0 mm larger so that the twisted portion 9 for pressing can be formed by turning (see FIGS. 7 and 8).
As a result, a clearance 6 is formed on one end side of the major axis K.

In the clearance portion 6, a rod-shaped tool 7b such as a screwdriver as a pressing means 7 is inserted and rotated, and a pressing torsion portion 9 is formed on the side thereof to shorten the major axis K, Tighten the upper and lower suspension bolts 2 and 3 with the connector 1, press one suspension bolt 3 against the other suspension bolt 2, and firmly engage the screw portions 4 and 5 with each other.
Pressed.

Since this connecting tool 1 is also ring-shaped with a steel wire, it is shorter than the part where the threaded parts 4, 5 of both suspension bolts 2, 3 are engaged and joined together. Two of them are connected as shown in FIG.

The connector 1 shown in FIGS. 11 to 18 is a vertically long tubular body, and here, a normal steel plate 10 having a thickness of about 1.0 mm is vertically long with a height of about 60 mm, and has a cross section. Is an oval tubular body formed by press working.

The cylindrical body has an elliptical cross section, and the inner short diameter k thereof can be fitted into the respective hanging bolts 2 and 3 and is slightly smaller than the outer diameter d of the respective hanging bolts 2 and 3. Larger, since the outer diameter of each suspension bolt 2 and 3 is 8.0 mm here,
It is about 8.4 mm, which is about 0.4 mm larger than that.

The major axis K of the inside of the cylindrical body is larger than 16.0 mm, which is the sum of the two outer diameters d of the suspension bolts 2 and 3, and here the threaded portions 4 and 5 are engaged with each other. Considering that there is a minute, about 18.0m, which is about 3.0mm larger
m, and a clearance 6 is formed on one end side of the major axis K.

In the inner portion 6 having the clearance 6 on one end side of the major axis K inside the above-mentioned tubular body, here, small locking projections 7c as pressing means 7 are formed at three positions in the vertical direction. is there. This is also pre-pressed, as shown in FIG. 15, in the ordinary steel plate 10, when curved into a tubular body, three positions are inclined inwardly upward at positions corresponding to one end side of the major axis K. By cutting and raising, the small projecting piece 7c for locking is projected.

The amount of protrusion of the small projecting piece 7c for locking is such that the major axis K inside the tubular body is 18.0 mm and the sum of the outer diameters d of both suspension bolts 2 and 16 is 16 mm. Screw part 4, 5
Since there is an amount of engagement between them, it is set to about 3.5 mm here. The upper end surface of the small locking projection 7c is formed in an arc shape along the outer peripheral surface of the lower hanging bolt 3 (see FIG. 15 above).

The ordinary steel plate 10 is curved and the both side edges are overlapped and joined to form a cylindrical body having an oval cross section. In the case shown in FIGS. As shown in FIG. 3, the short cylindrical portion 11 for joining is provided at two locations near one edge of the ordinary steel plate 10, and the round holes 1 for joining are provided at two locations near the edge of the other side.
2, the short cylindrical portion 11 for joining is engaged with the round hole 12 for joining in a state where both side edges are overlapped, and the portion protruding outward is joined by caulking.

In FIGS. 16 and 17, the ordinary steel plate 10 is joined by bending it in an oval cross section, and the joining tongue pieces 13 are provided at two positions on one edge of the ordinary steel plate 10. , A joining hole portion 14 with which the tongue piece 13 can be engaged at two positions on the other end edge
Is formed in advance, the joining tongue piece 13 is engaged with the joining hole portion 14, and is bent and joined. Other parts are the same as those shown in FIGS. 11 to 15.

FIG. 18 shows that the ordinary steel plate 10 is joined by being bent by press working to have an elliptical cross section, and both edges of the ordinary steel plate 10 are joined by welding. Are the same as those shown in FIGS. 11 to 15. Reference numeral 15 indicates a joint portion.

Incidentally, FIG. 19 showing the use state of the connecting tool 1 according to the present invention also shows the case where three hanging bolts are connected. That is, an anchor bolt is hung vertically as the upper hanging base material 17, and this is used as the uppermost hanging bolt 2, and the middle hanging bolt is used as the lower hanging bolt 3.
As an example, the two hanging bolts 2 and 3 are connected to the connector 1 according to the present invention.
Connect with. Further, the intermediate hanging bolt is used as the upper hanging bolt 2, and the lower hanging bolt 3 standing on the ceiling 18 is connected by the connecting tool 1 of the present invention.

The materials and dimensions of the hanging bolts 2 and 3 described above, the material and dimensions of the connecting tool 1, the thickness of the wedge-shaped member 7a or the rod-shaped tool 7b as the pressing means, and the small size for locking. It is needless to say that the number of the projecting pieces 7c, the inward projecting amount, and the like are as examples and are not limited thereto.

The hanging bolt connector 1 for ceilings or the like according to the present invention has a low manufacturing unit price, and the connecting work can be performed easily and quickly by one person. Since it is as described in the section of the form 1, it is omitted here to avoid duplication. In addition, according to an in-house test, even when any of the above-described connecting tools 1 is used, even if a load of about 130 kg is applied to the lower hanging bolt 3 connected to one upper hanging bolt 2, The connection state of both suspension bolts 2 and 3 has not changed at all, and it has been confirmed that the suspension strength is sufficient.

[0063]

As is apparent from the above, the method for connecting a suspension bolt for a ceiling or the like according to the present invention and the connecting tool used for the same can reduce the manufacturing cost of the connecting tool as compared with the conventional one. However, there is no need for welding at the time of connecting work and there is no trouble or danger, and the connecting work can be performed easily and quickly, the construction cost can be significantly reduced, and the ceiling or the like can be hung with sufficient strength.

That is, of the conventional connecting means for hanging bolts such as ceilings, in which both the upper and lower hanging bolts are welded, the welding device is lifted to a high place such as the attic, and the sparks of welding are not generated. There was a risk of fire if there was flammable material below when flying. Also, a turnbuckle type long nut,
The manufacturing unit price is not low in any of those using a rectangular parallelepiped-shaped connecting member into which a female screw hole or a female screw body is inserted. Furthermore, in any of these, the cost of this type of construction using a large number of cables has been considerably high due to the labor involved in the connection work and the like.

On the other hand, in the connecting means for suspending bolts such as the ceiling according to the present invention, (a) the connecting tool of the present invention can be manufactured from a metal plate or a metal wire by pressing or the like. In contrast, the unit cost of manufacture of this connector can be significantly reduced.

(B) The connecting device of the present invention is formed in advance in a factory or the like, and it may be taken to a construction site such as the attic, and the connecting work using the connecting device can be performed by hanging both the upper and lower parts. All that is required is to engage the down bolt, push in the wedge-shaped member, or twist the allowance with a rod-shaped tool.

Therefore, unlike the above-mentioned conventional means, there is no trouble and there is no danger, and since one hanging bolt can be held by one hand and the connecting work can be performed by the other hand, the connecting work can be performed. It can be done easily and quickly by one person, and the connection work of the hanging bolts using a large number can be cheap from this aspect.

(C) Further, in this connecting means, by pressing with a wedge-shaped member as pressing means of the connecting tool, tightening by twisting with a rod-shaped tool, or pressing with elasticity of the locking small projecting piece, etc., within the connecting tool. The threaded portions of both suspension bolts are strongly engaged and pressed against each other. Therefore, the connection strength between the upper and lower suspension bolts is strong, and the lower suspension bolt that suspends the ceiling, etc. is suspended with sufficient strength.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view showing a state in which upper and lower hanging bolts are connected to each other in an embodiment of a hanging bolt connector for a ceiling or the like according to the present invention.

FIG. 2 is a cross-sectional plan view of the connector according to the present invention used in the device shown in FIG.

FIG. 3 is a sectional view taken along line AA of the one shown in FIG.

FIG. 4 is a front view showing a state in which upper and lower suspension bolts are connected to each other in another embodiment of the suspension bolt connector for a ceiling or the like according to the present invention.

5 is a cross-sectional plan view of the connector according to the present invention used in the device shown in FIG. 4. FIG.

FIG. 6 is a sectional view taken along line BB of what is shown in FIG.

FIG. 7 is a front view showing a state in which both upper and lower hanging bolts are connected to each other in still another embodiment of the hanging bolt connector for a ceiling or the like according to the present invention.

8 is a plan view of the connector according to the present invention used in the device shown in FIG. 7. FIG.

9 is a cross-sectional view taken along the line CC of FIG. 7.

FIG. 10 is a modified example of that shown in FIG.

FIG. 11 is a partially longitudinal front view showing a state in which both upper and lower hanging bolts are connected in another embodiment of the hanging bolt connecting tool for a ceiling or the like according to the present invention.

12 is a partially cutaway front view of the connector according to the present invention used in the apparatus shown in FIG. 11. FIG.

FIG. 13 is a sectional view taken along the line DD of FIG. 11.

FIG. 14 is a sectional view taken along line EE of what is shown in FIG. 11.

FIG. 15 is a perspective view of what is shown in FIG. 12 before bending.

FIG. 16 is a partially cutaway front view of yet another embodiment of the hanging bolt connector for a ceiling or the like according to the present invention.

FIG. 17 is a cross-sectional plan view when the upper and lower suspension bolts shown in FIG. 16 are connected to each other.

FIG. 18 is a cross-sectional plan view showing a modified example of the one shown in FIG.

FIG. 19 is a front view showing an example of a usage state of what is shown in FIG. 11.

20 is a front view showing another example of the usage state of the one shown in FIG. 11. FIG.

FIG. 21 is a front view showing a state in which suspension bolts such as a ceiling are connected by conventional means.

[Explanation of symbols]

1-Hanging bolt connector 2-Upper hanging bolt 3-Lower hanging bolt 4-screw 5-screw 6- Clear space 7-Pressing means 7a-Wedge member 7b-bar tool 7c-Small protrusion for locking 8-Inside 9-Pressing torsion part 10-Metal plate 11-Short cylindrical portion for joining 12-round hole for joining 13-Jointing tongue 14-Joining hole 15-weld 16-Hemming part 17-Upper hanging substrate 18-ceiling 19-Piping support frame 20-torsion 21-weld K-long diameter k-minor axis d-outer diameter

Claims (7)

[Claims] 1. The upper and lower suspension bolts 2 and 3 to be connected are arranged in parallel, and a metal-made connecting tool 1 having a laterally elongated cross section is fitted in the overlapping portions, and a longitudinal direction in the connecting tool 1 is measured. Both suspension bolts 2, 3
A method for connecting a suspension bolt such as a ceiling, characterized in that the two suspension bolts 2 and 3 are connected by engaging and press-contacting the screw portions 4 and 5 with each other. 2. An oval shape which is made of a metal material and which can be fitted into a portion in which two upper and lower hanging bolts 2 and 3 which are to be connected are arranged side by side, and in the direction of the major axis thereof. Clear space 6
The size of the suspension bolts, and the suspension part 6 and the suspension bolts 2 and 3 in the fitted state.
A connecting means for hanging bolts for a ceiling or the like, characterized in that a pressing means 7 for engaging and press-contacting the screw parts 4, 5 with each other is provided. 3. A tubular body made of a metal plate, the cross-sectional shape of which is
The upper and lower suspension bolts 2 and 3 to be connected have an oval shape capable of being fitted to a portion where they are in parallel with each other, and a size having a clearance portion 6 in the major axis direction thereof. Both hanging bolts 2 and 3 in the combined state
A suspending bolt connector for a ceiling or the like, characterized in that a wedge-shaped member 7a is provided so as to be insertable as a pressing means 7 for engaging and press-contacting the screw portions 4, 5 with each other. 4. A ring-shaped structure in which metal wires are joined together, and two hanging bolts 2, 3 for connecting the upper and lower portions which connect the cross-sectional shapes thereof.
Are sized so that they can be fitted to the parts that are in parallel with each other, and have a size with a clearance 6 in the major axis direction. The clearance 6 is provided with both hanging bolts 2 and 3 in the fitted state.
A suspending bolt connector for a ceiling or the like, characterized in that a wedge-shaped member 7a is provided so as to be insertable as a pressing means 7 for engaging and press-contacting the screw portions 4, 5 with each other. 5. A ring-shaped structure in which metal wires are joined together, and two hanging bolts 2 and 3 for connecting the upper and lower portions which connect the cross-sectional shapes thereof.
Has an elliptical shape that can be fitted to the parts that are in parallel with each other, and has a size with a clearance 6 in the major axis direction, and engages the screw parts 4 and 5 of both suspension bolts 2 and 3 in the fitted state. A suspending bolt connector for a ceiling or the like, which is formed in a size such that a rod-shaped tool 7b as a pressing means 7 is inserted and rotated so that a pressing torsion part 9 can be formed so as to be capable of pressure contact. 6. A tubular body made of a metal plate, the cross-sectional shape of which is
The upper and lower suspension bolts 2 and 3 to be connected are oval-shaped so that they can be fitted into a parallel portion, and have a clearance 6 in the major axis direction. As a pressing means 7 for engaging and press-contacting the screw portions 4 and 5 of the two hanging bolts 2 and 3 with each other on the side face 8 in the fitted state, a small projecting piece 7c for locking which is obliquely provided inwardly. A connecting tool for a hanging bolt such as a ceiling, which is characterized in that it is protruded. 7. A tubular body made of a metal plate, the cross-sectional shape of which is
The inner short diameter k is set to be slightly larger than the outer diameter d of the hanging bolts 2 and 3, and the long diameter K is set to the hanging bolts 2.
The outer diameter d of 3 is larger than the sum of the two outer diameters d to have the allowance portion 6, and the inner side surface 8 having the allowance portion 6 on one end side of the major axis K has both the hanging bolts 2 in the fitted state. As a pressing means 7 for engaging and press-contacting the screw portions 4 and 5 of the screw holes 3 and 3 with each other, a small projecting piece 7c for locking which is obliquely inwardly provided is provided, and a ceiling or the like is hung. Bolt connector.