JP4144756B2 - Hanging bolt fixing bracket for channel steel - Google Patents

Description

  The present invention relates to a fixing bracket for fixing a suspension bolt for suspending piping, facility equipment and the like to a grooved steel in construction work such as water supply / drainage, air conditioning and electricity in construction work.

Conventionally, as shown in FIG. 12, as this type of fixing bracket, a screw portion to which a suspension bolt is screwed is formed at the center of the substrate, and a pair of through holes that are concentric with each other at the base ends of the pair of rising pieces. A substantially U-shaped metal fitting main body formed in each case, and a through hole through which a suspension bolt screwed into a screw portion of the metal fitting main body is inserted in the central portion, a pair of protruding pieces projecting outward on both sides thereof And a pair of protrusions of the leaf spring are respectively inserted into the pair of through holes of the metal fitting body so that the metal fitting body and the leaf spring can swing freely. ing.
In addition, as a usage method, the metal plate body is inserted from the opening end portion into the grooved steel while holding both ends of the leaf spring by hand and bent in a substantially V shape. Swings with respect to the leaf spring and tilts it to obstruct the open end of the grooved steel. After the metal fitting is inserted, the leaf spring is released. Is brought into contact with the opening end portion, and the metal fitting body is pulled by its restoring force, and the metal fitting body is temporarily fixed by being hooked to the opening end portion end surface. (See Figure 13)
Next, the suspension bolt is inserted through the through-hole of the leaf spring and screwed into the threaded portion, and is further screwed upward. The upper end of the suspension bolt is brought into contact with the lower surface of the upper side of the grooved steel, and is hung on the opening end. It was fixed by the tension between the two points with the stopped metal fitting body.

However, in the conventional fixing bracket, as shown in FIG. 13, the overall length of the leaf spring is larger than the width of the grooved steel, and after mounting on the grooved steel, it protrudes outward from the grooved steel and fits in appearance. There were problems such as worsening and detracting from aesthetics.
Although it is easy to consider shortening the length of the leaf spring in design, the leaf spring is bent into a V shape when mounted as in the above method of use, so that it fits within the width of the channel steel. If the length is set, there are problems in construction such as the handling becomes very difficult.

  The present invention has been made in view of the above-described conventional problems. The purpose of the present invention is to provide a groove that does not protrude from the grooved steel when it is fixed to the grooved steel. An object of the present invention is to provide a hanging bolt fixing bracket for a shape steel.

As a means therefor, claim 1 of the present invention is a substantially U-shaped bracket body comprising a substrate on which a threaded portion to which a suspension bolt is screwed, a pair of rising pieces formed on both sides of the substrate, and the bracket. The plate is formed with a through-hole through which a suspension bolt to be screwed into the threaded portion of the main body is inserted, and a plate spring in which a latch piece for latching the open end of the grooved steel is formed at both ends. The spring is swingably attached to a pair of upright pieces of the metal fitting body.

A second aspect of the present invention is characterized in that, instead of the latch pieces at both ends of the leaf spring, fracture inducing portions are formed on both sides.

According to the first aspect of the present invention, since the latching pieces for latching the opening ends of the grooved steel are formed at both ends of the leaf spring, the following mounting method is possible.
Hold both ends of the leaf spring by hand and bend it into a substantially V shape. The metal fitting body swings with respect to the leaf spring, inclines and is inserted into the grooved steel from the open end. After rotating the spring 90 degrees so that the spring is parallel to the longitudinal direction of the grooved steel, by releasing the hand from the leaf spring, the latching pieces at both ends of the leaf spring are brought into contact with the opening ends, respectively. The metal fitting main body is pulled close by the restoring force, and the pair of rising pieces of the metal fitting main body can be temporarily fixed by being hooked inside the opening end portion.
That is, since the long side of the leaf spring is parallel to the longitudinal direction of the grooved steel, it is eliminated that the tip of the leaf spring protrudes from the width of the grooved steel.

  According to the second aspect of the present invention, since the fracture inducing portions are formed on both sides of the leaf spring, the width length of the groove steel is removed by breaking the outer side from the fracture inducing portion after fixing to the groove steel. Can fit in.

  As described above, since the hanging bolt fixing bracket for grooved steel according to the present invention is configured, the leaf spring does not protrude from the width and length of the grooved steel, the appearance is good, and the appearance is also excellent. .

Embodiments of the present invention will be described in detail with reference to the drawings.
1 is a perspective view showing a first embodiment of the present invention, FIG. 2 is a rear view of FIG. 1, and FIG. 3 is an assembly view of the first embodiment of the present invention.
Reference numeral 10 denotes a metal fitting body, which is formed by bending a steel plate into a substantially U-shape, forming a screw portion 12 to which a suspension bolt is screwed at substantially the center of the substrate 11, and a pair of rising pieces 13 formed on both sides of the substrate 11. , 13 are formed with a pair of through holes 14, 14 facing each other on the coaxial core.
Further, the pair of upright pieces 13 and 13 and the other opposite sides 15 and 15 are also slightly and integrally bent to improve the strength of the substrate 11.
Reference numeral 20 denotes a thin plate spring, and an elliptical through hole 21 through which a suspension bolt to be screwed into the screw portion 11 of the metal fitting body 10 is inserted is formed at the center, and a pair of outwardly protruding pairs is formed on both sides thereof. Projection pieces 22 and 22 are formed.
Furthermore, since it can be latched at the both ends of the opening end of the channel steel, the latching pieces 23 and 23 are formed so as to have a width length W larger than the width length of the opening end.
The material of the leaf spring 20 is considered to be a metal such as a spring material or hard plastic, but the main point is that the longitudinal side of the leaf spring 20 is bent into a substantially V shape and then opened to open the original flat shape. What is necessary is just to have the restoring force which tries to return to faceplate shape.
The leaf spring 20 can swing freely with the metal fitting body 10 by loosely inserting the pair of protruding pieces 22 and 22 into the pair of through holes 14 and 14 facing the metal fitting body 10.

Next, a method of using the first embodiment of the present invention will be described.
FIG. 4 is an explanatory view showing the procedure for using the first embodiment of the present invention, and FIGS. 5 and 6 are side views showing the mounting state of the first embodiment of the present invention.
The metal body 10 can be swung with the leaf spring 20 as shown in FIG. 5 while holding both ends of the leaf spring 20 by hand and bent in a substantially V shape. Then, after the grooved steel A is inserted inward from the opening end of the grooved steel A, the leaf spring 20 is rotated by 90 ° so as to be parallel to the longitudinal direction of the grooved steel A, and the hand is released from the leaf spring 20.
As shown in FIG. 6, the leaf spring 20 has the latching pieces 23, 23 at both ends in contact with the opening end portions, and pulls the metal fitting body 10 by its restoring force, so that a pair of risers of the metal fitting body 10 are raised. The pieces 13 and 13 are temporarily fixed by being hooked inside the opening end portions.
Next, the suspension bolt B is inserted through the through-hole 21 of the leaf spring 20 and screwed into the screw portion 11 of the metal fitting body 10, and further screwed upward so that the upper end of the suspension bolt B is the lower surface of the upper side of the channel steel A. It will be in the state fixed by the tension | tensile_strength between two points with the metal fitting main body 10 made to contact | abut and latched to the opening edge part.
Similarly, after attaching it to the appropriate position of the channel steel, the pipes and the like are suspended by these suspension bolts.

FIG. 7 is a perspective view showing a second embodiment of the present invention, FIG. 8 is an assembly view showing the second embodiment of the present invention, and 30 is a metal fitting body having the same form as described in the first embodiment. It is.
Reference numeral 40 denotes a thin plate spring, and an elliptical through hole 41 through which a suspension bolt screwed to the screw portion 32 of the metal fitting body 30 is inserted is formed at the center, and a pair of outwardly protruding pair is formed on both sides thereof. The form in which the projecting pieces 42 are formed is the same as that in the first embodiment.
Reference numerals 43 and 43 denote breakage induction portions formed on both sides, and a cut portion indicating a breakage position is formed at an appropriate position of the leaf spring 40.
Further, as shown in FIG. 9, substantially V-shaped grooves 53 and 53 can be formed at appropriate positions on the surface.
That is, as shown in FIG. 10, after being attached to the grooved steel, it is only necessary that it can be easily broken and removed so that the tip of the leaf spring does not protrude outward from the grooved steel.

FIG. 11 is an explanatory diagram showing the use procedure of the second embodiment.
Holding the both ends of the leaf spring 40 by hand and bending it into a substantially V shape, the metal fitting body 30 is inserted inward from the opening end of the grooved steel A and the hand is released from the leaf spring 40.
Both ends of the leaf spring 40 are brought into contact with the opening end portion, and the metal fitting body 30 is pulled by its restoring force so that the metal fitting main body 30 is hooked inside the opening edge portion to be temporarily fixed.
Next, both ends of the leaf spring 40 are removed from the breakage inducing portions 43, 43, and then the suspension bolt B is inserted into the threaded portion 31 of the metal fitting body 30 through the through hole of the leaf spring 40. Screwed upward, the upper end of the suspension bolt B is brought into contact with the lower surface of the upper side of the channel steel A, and is fixed by a tension between two points with the metal fitting body 30 hooked to the opening end.
Similarly, after attaching it to the appropriate position of the channel steel, the pipes and the like are suspended by these suspension bolts.

The perspective view which shows 1st Example of this invention Back view of FIG. Assembly drawing of the first embodiment of the present invention Explanatory drawing which shows the use procedure of 1st Example of this invention. The side view which shows the attachment state of 1st Example of this invention. The side view which shows the attachment state of 1st Example of this invention. The perspective view which shows 2nd Example of this invention. Assembly drawing showing a second embodiment of the present invention The perspective view which shows another form of 2nd Example of this invention. The side view which shows the attachment state of 2nd Example of this invention Explanatory drawing which shows the use procedure of 2nd Example of this invention. Perspective view showing a conventional example Usage example of conventional example

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Metal fitting body 11 Board | substrate 12 Screw part 20 Leaf spring 21 Through-hole 22 Protrusion piece 23 Hanging piece 43 Breaking induction part A Groove-shaped steel B Suspension bolt

Claims (2)

A substantially U-shaped metal fitting body composed of a substrate on which a screw portion for screwing a suspension bolt is formed, a pair of rising pieces formed on both sides of the substrate, and a suspension bolt to be screwed onto the screw portion of the metal fitting body. A through-hole to be inserted is formed in the center, and is formed of a leaf spring in which a latch piece that latches at the opening end of the grooved steel is formed at both ends, and the leaf spring is a pair of rising pieces of the metal fitting body A hanging bolt fixing bracket for grooved steel, characterized in that it is swingably mounted on the groove. The hanging bolt fixing bracket for grooved steel according to claim 1, wherein breakage inducing portions are formed on both sides in place of the latching pieces at both ends of the leaf spring.

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