JP4431554B2 - Fluorescent lamp fixtures for shape steel - Google Patents

Description

  The present invention relates to a metal fitting for attaching a fluorescent lamp fixture to a shape steel used as a beam material, a base material or the like of a structure in lighting equipment construction, for example, an angle steel, an H-shape steel or an I-shape steel.

Conventionally, as a method of fixing a fluorescent lamp fixture to a shape steel, as shown in FIG. 1 of Japanese Utility Model Laid-Open No. 01-129407, a flat plate portion of the shape steel is sandwiched between upper and lower plates, and the side surface is clamped with a fixing screw. As shown in FIGS. 10 and 11, first, the opening diameter of the through hole 54 is formed from above the through hole 54 formed in the lower plate of the fixing metal 50 using the substantially U-shaped structural steel fixing metal. The connecting screw 110 is inserted through the washer 100 having a larger diameter, and the connecting screw 110 is further inserted into the mounting hole B of the fluorescent lamp apparatus A to provide a screw hole 121 in the center of the circular contact surface. After the support seat 120 is screwed from the inside of the fluorescent lamp fixture A and tightened as appropriate, and the steel bracket is attached to the fluorescent lamp fixture, the fluorescent lamp fixture A is placed at a desired position of the H-section steel C, The fixing metal fitting 50 was fixed to the H-section steel C and attached.
Actual Kaihei 01-129407

  In the conventional method described above, at least a washer, a connecting screw, and a support seat are required as parts for mounting the structural steel fixture to the fluorescent lamp fixture, and since there are a plurality of fine parts, the installation work is troublesome and the work time is also long. There were problems such as inefficiency.

  The present invention has been made in view of the above-described conventional problems. The purpose of the present invention is to mount a fluorescent lamp apparatus on a structural steel used as a beam material or a base material of a structure, which can be easily, reliably and efficiently mounted. It is to provide metal fittings.

As a means for that, claim 1 of the present invention is a substantially U-shaped configuration in which the flat plate portion of the shaped steel is sandwiched between the opening portions of the top plate and the bottom plate facing each other and fixed by tightening the tightening bolts provided on the top plate. A mounting bracket body that is attached to a steel fixing bracket and is formed in a substantially U shape so that a gap between the opposed upper and lower plates is fitted to the bottom plate of the structural steel fixing bracket. The upper plate is provided with a locking piece that locks into a through hole formed in the bottom plate of the structural steel fixing bracket, and the lower plate is formed by winding a wire in a conical spiral shape. And a fluorescent lamp holding portion which is fixed to the support shaft through which the axis of the locking body is inserted.

According to a second aspect of the present invention, rising pieces are formed along both ends of the upper plate.

A third aspect of the present invention is characterized in that a screw shaft is vertically provided on the lower plate in place of the fluorescent lamp holding portion.

According to a fourth aspect of the present invention, a screw hole is provided in the lower plate in place of the fluorescent lamp holding portion.

According to claim 1 of the present invention, the mounting bracket body is formed in a substantially U shape so that the gap between the upper plate and the lower plate facing the bottom plate of the structural steel fixing bracket is fitted. Simply inserting the gap between the upper plate and lower plate into the bottom plate of the steel fixing bracket allows easy fitting.
Since the locking piece provided on the upper plate is locked to the through-hole formed in the bottom plate of the structural steel fixing bracket, it can be prevented from coming off and can be securely attached.
Since the fluorescent lamp holding part consisting of a locking body formed by winding a wire rod in a conical spiral shape on the lower plate and a support shaft that passes through the axis of the locking body is fixed, it is attached to the mounting hole of the fluorescent lamp fixture. By rotating the fluorescent lamp holding portion by a predetermined depth and screwing, the locking body can be locked and attached to the mounting hole.
That is, since the parts for mounting the fluorescent lamp fixture are integrated, it is not troublesome, the installation is easy, and the working time can be shortened and the efficiency can be improved.

According to claim 2 of the present invention, since the rising pieces are formed along both ends of the upper plate, the upper and lower plates are brought into contact with the lower surface of the flat plate portion of the shape steel when the rising pieces are attached to the shape steel. As a result, it is possible to eliminate the rattling caused by the gap between the gap portion and the thickness of the bottom plate of the structural steel fixing bracket.

According to the third aspect of the present invention, instead of the fluorescent lamp holding portion, a screw shaft is vertically provided on the lower plate, so that the screw shaft is inserted into the mounting hole of the fluorescent lamp fixture, and the fluorescent shaft is inserted into the screw shaft. The fluorescent lamp fixture can be easily attached by screwing and tightening the support seat from the inside of the lamp fixture, and the number of parts can be reduced, thereby shortening the working time and increasing the efficiency.

According to claim 4 of the present invention, since the lower plate is provided with a screw hole instead of the fluorescent lamp holding portion, a connecting screw is screwed into the screw hole from the inside of the fluorescent lamp fixture through the mounting hole. Fluorescent lamp fixtures can be easily attached by attaching and tightening, and the number of parts can be reduced, thereby shortening the working time and increasing efficiency.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a perspective view showing a first embodiment of a fluorescent lamp fixture for a shaped steel according to the present invention, and FIG. 2 is a central sectional view thereof.

Reference numeral 10 denotes a mounting bracket main body, and the gap portion 13 is formed by bending a thin steel plate into a substantially U shape in which the upper plate 11 and the lower plate 12 face each other.
The upper plate 11 is cut out at a substantially central portion and bent downward to be provided with a locking piece 14 and bent upward at both ends along its edge to form rising pieces 15 and 15.
The rising pieces 15, 15 are formed so as to protrude upward from the reinforcing ribs formed along both ends of the bottom plate of the opening of the fixing bracket when attached to the structural steel fixing bracket.
A fluorescent lamp holder 16 is fixed to the lower surface of the lower plate 12.
Reference numeral 17 denotes a locking body, which is formed by winding a metal wire having an outer diameter of about 2 mm into a conical spiral having a minimum outer diameter of 10 mm to a maximum outer diameter of about 25 mm.
Reference numeral 18 denotes a support shaft, which is made of a metal wire having an outer diameter of about 6 mm and is formed with a stop portion 19 having an outer diameter larger than the shaft diameter at the lower end, and is inserted along the axis of the locking body 16 to be locked. The upper end is fixed to the lower surface of the lower plate 12 with the small diameter portion of the body 17 in contact with the stopper 19.
That is, the locking body 17 is restrained between the lower surface of the lower plate 12 and the stopper portion 19 of the support shaft 18 and is in a fixed state.

FIG. 3 shows a second embodiment in which a screw shaft 20 having an outer diameter that can be inserted into a mounting hole of a fluorescent lamp fixture is suspended from the lower surface of the lower plate 12 in place of the fluorescent lamp holder 16 of the first embodiment. It is.

FIG. 4 shows a third embodiment in which a screw hole 30 into which a connecting screw can be screwed is provided in the lower plate 12 in place of the fluorescent lamp holding portion 16 of the first embodiment.

Next, a method of using the embodiment of the present invention will be described.
5 to 7 show the use state of the first embodiment of the present invention.
First, the fluorescent lamp fixture mounting bracket of the present invention is fitted into the bottom plate 52 of the structural steel fixture 50 by pressing the gap 13 between the upper plate 11 and the lower plate 12.
At that time, the locking piece 14 provided on the upper plate 11 is locked to the through hole 54 formed in the bottom plate 52 of the structural steel fixing bracket 50, so that the disconnection can be prevented.
Next, the fluorescent lamp fixture A is mounted by being screwed into the mounting hole B of the fluorescent lamp holding part 16 by rotating from the tip of the small diameter of the fluorescent lamp holding part 16 to a predetermined depth and screwing the locking body 17 into the mounting hole B.
Further, the fluorescent lamp fixture A equipped with the fluorescent lamp fixture mounting bracket is disposed at a predetermined position of the H-shaped steel C, and the top plate 51 and the bottom plate of the H-shaped steel C facing the flat bracket portion 50 are opposed to each other. The fastening bolt 55 is fastened and fixed in a state of being sandwiched by the opening 53 with 52, and the mounting of the fluorescent lamp fixture is completed.

FIG. 8 is an explanatory view showing a usage state of the second embodiment of the present invention, in which a screw shaft 20 suspended from the lower surface of the lower plate 12 is inserted into the mounting hole B of the fluorescent lamp fixture A and the support seat 120 is viewed from the inside. Attach the fluorescent lamp fixture by screwing.
After the mounting, as in the first embodiment of the present invention, the fluorescent lamp fixture equipped with the fluorescent lamp mounting bracket is arranged at a predetermined position of the H-shaped steel, and the fixing bracket for the shaped steel is attached to the flat plate portion of the H-shaped steel. Fix and complete the installation of the fluorescent lamp.

FIG. 9 is a view showing a usage state of the third embodiment of the present invention, in which the connecting bolt 110 is screwed into the screw hole 30 provided in the lower plate 12 from the inside of the fluorescent lamp fixture A through the attachment hole B. Attach the fluorescent light fixture.
After the mounting, as in the first embodiment of the present invention, the fluorescent lamp fixture equipped with the fluorescent lamp mounting bracket is arranged at a predetermined position of the H-shaped steel, and the fixing bracket for the shaped steel is attached to the flat plate portion of the H-shaped steel. Fix and complete the installation of the fluorescent lamp.

The perspective view which shows 1st Example of this invention Central sectional view showing a first embodiment of the present invention The perspective view which shows 2nd Example of this invention. The perspective view which shows 3rd Example of this invention. Explanatory drawing which shows the use condition of 1st Example of this invention. Explanatory drawing which shows the use condition of 1st Example of this invention. Explanatory drawing which shows the use condition of 1st Example of this invention. Explanatory drawing which shows the use condition of 2nd Example of this invention. Explanatory drawing which shows the use condition of 3rd Example of this invention. Explanatory drawing showing a conventional example Explanatory drawing showing a conventional example

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Mounting bracket main body 11 Upper plate 12 Lower plate 13 Gap part 14 Locking piece 16 Fluorescent lamp holding part 17 Locking body 18 Support shaft 50 Fixing bracket A for shape steel Fluorescent lamp fixture B Mounting hole

Claims (4)

It is attached to a substantially U-shaped structural steel fixing bracket that is sandwiched between the opening portions of the top and bottom plates facing each other and fixed by tightening the tightening bolts provided on the top plate, The upper plate of the mounting bracket body formed in a substantially U shape so that the gap between the opposing upper plate and lower plate is fitted to the bottom plate of the structural steel fixture is attached to the upper plate of the structural steel fixture. A locking piece for locking to a through hole formed in the bottom plate is provided, and a locking body formed by winding a wire rod in a conical spiral shape on the lower plate, and a support shaft through which an axis of the locking body is inserted A fluorescent lamp fixture mounting bracket for a shape steel, characterized in that a fluorescent lamp holder made of is fixed. 2. The fluorescent lamp fixture mounting bracket for shape steel according to claim 1, wherein rising pieces are formed along both ends of the upper plate. The fluorescent lamp fixture mounting bracket for shape steel according to claim 1 or 2, wherein a screw shaft is suspended from the lower plate in place of the fluorescent lamp holder. 3. The fluorescent lamp fixture mounting bracket for shape steel according to claim 1, wherein a screw hole is provided in the lower plate in place of the fluorescent lamp holding portion.

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