JP2001193212A - Cradling receiver for ceiling foundation material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cradling receiver, in which strength is maintained, which also has excellent profitability, the products of which are lightened and by which resources are saved, regarding the cradling receiver used for a ceiling foundation material. SOLUTION: In the cradling receiver inserted and supported to a hanger 2 hung down from a ceiling section, a structure having an upstanding section 11 on the upper side brought into contact with the substrate section 21 or side plate section 23 of the hanger, an upper plate section 12 bent and formed in the horizontal direction from the upper end section of the upstanding section 11 on the upper side, an inclined section 13 bent from the lower section of the upstanding section on the upper side to the lower side of the upper plate section and formed in the oblique downward direction, an upstanding section 14 on the lower side formed to the lower section of the inclined section and brought into contact with the side plate section 23 or the substrate section 21 of the hanger 2, and a lower plate section 15 bent and formed in the horizontal direction in the opposite direction to the upper plate section from the lower end section of the upstanding section 14 on the lower side is formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a field support for a ceiling base material used for a ceiling base material.

[0002]

2. Description of the Related Art Conventionally, as a base material for a ceiling base material, as shown in the JIS A6517 standard for building steel base material, a U-shaped cross section (CC-19), There is a field-shaped field support having a cross section C in which upper and lower ends of the field-shaped field support are bent inward.

[0003] When evaluating the quality of a field support, JIS A
According to the 6517 standard, the test is performed by a downward load test shown in FIG. In this test, a field support 52 is erected in parallel using a suspension bolt 51, a single field support 53 is attached to the field support 52 using a clip, and a scaffold plate 54 (1200 × 1200 × (Plywood of 400 × 24 mm) is placed. 735.50 N on this scaffold 54
When a load of (75 kgf) is applied, the maximum deflection amount and the residual deflection amount at the center between the hanging bolts 51 of the ridge 52 are measured. The field support (CC-19) used in this test has a U-shaped cross section and a plate thickness of 1.2 mm.

[0004] The measurement is carried out for two of the field receivers 52, and one of them takes a larger value. The loading strength of the field support conforming to the regulations is required to have a maximum deflection of 5 mm or less and a residual deflection of 2 mm or less when the above-mentioned load of 735.50 N (75 kgf) is removed. Have been. According to this regulation, when working behind the ceiling, there is a case where the scaffolding board is handed over to a ridge,
The background is that when the load of 5.50 N (75 kgf) is removed, the residual deflection of the field margin is small and has a sufficient restoring force.

[0005]

[0005] Apart from the above-mentioned standards, in the general market, the plate thickness is 1.0 mm or 0.2 mm.
From the standpoints of product cost and weight reduction, such as 9 mm, a field support having a smaller thickness than a field support of the JIS standard is available as a general product. In the case of such a thin frame, when the above load test is performed, a result satisfying the above-mentioned standard cannot be obtained in relation to the thickness. However, in the market, there is a strong demand for reduction of product cost or weight reduction.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and provides a roofing material for a ceiling base material which maintains strength, is economical, and can reduce the weight and resources of products. That is the task.

[0007]

In order to solve the above-mentioned technical problems, as shown in FIG. 1 and FIG. 2, a frame support of a ceiling base material according to the present invention is suspended from a ceiling portion and vertically suspended. A support member 22 having a long base portion 21, a receiving plate portion 22 formed to be bent laterally from a lower end portion of the base plate portion, and a hanger 2 having a side plate portion 23 formed to be bent further upward from the receiving plate portion. And an upper plate portion which is formed to be bent in a horizontal direction from an upper portion of the upper portion 11 in contact with the substrate portion 21 or the side plate portion 23 of the hanger 2 and an upper end portion of the upper portion 11. 12, an inclined portion 13 bent from the lower portion of the upper rising portion to a lower side of the upper plate portion and formed obliquely downward, and a side plate portion of the hanger 2 formed at a lower portion of the inclined portion. 23 or lower rising portion 1 in contact with substrate portion 21
4 and a lower plate portion 15 which is bent from the lower end of the lower rising portion 14 in the horizontal direction opposite to the upper plate portion.

[0008] Further, the edge support of the ceiling base material according to the present invention is formed so that the upper edge portion 16 extends downward from the tip of the upper plate portion.
Is provided with a lower edge 17 upward from the tip of the lower plate.

In addition to the above, the edge support of the ceiling base material according to the present invention is formed such that the inclination angle of the inclined portion 13 is at least 45 degrees from horizontal.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a ceiling support according to an embodiment of the present invention; FIG.
FIG. 1 shows a side view of the edge support 1, which is formed by bending a steel plate and has a substantially Z shape.

The ridge support 1 includes an upper rising portion 11 formed in a vertical direction, an upper plate portion 12 which is formed to be bent horizontally in a forward direction from an upper end portion of the upper rising portion 11, An inclined portion 13 bent from a lower portion of the rising portion 11 and inclined obliquely downward and forward, a lower rising portion 14 formed vertically downward from a lower portion of the inclined portion 13, and a lower rising portion 14.
A lower plate portion 15 is formed to be bent horizontally rearward from a lower end portion of the lower plate portion 15, and an upper end edge portion 16 extends vertically downward from a front end portion of the upper plate portion 12 to a front end portion of the lower plate portion 15. The lower edge portions 17 are provided in the vertical direction from above.

The inclined portion 13 has an angle of about 50 degrees from the horizontal. The upper plate portion 12 and the lower plate portion 15 of the edge support 1 have a length slightly shorter than the inner size of the support plate 22 of the hanger 2 described below.

As shown in FIG. 2, the edge support 1 is fitted and supported on a hanger 2 suspended from a ceiling such as a ceiling slab. The hanger 2 is suspended by a suspension bolt 3 suspended from a ceiling slab by a nut 4 or the like so that the height can be adjusted. The hanger 2 is formed by bending a steel plate, and has a vertically long substrate portion 21,
Receiving plate portion 2 that is formed to bend horizontally forward from the lower end of 1
2. It has a side plate portion 23 which is further bent upward in the vertical direction from the receiving plate portion 22, and a support portion 24 which is bent rearward from the upper end of the substrate portion 21.

As described above, the hanger 2 comprises the substrate 2
1. A U-shaped cross section is formed by the receiving plate portion 22 and the side plate portion 23, and has an upward opening 27. Further, the upper portion of the side plate portion 23 of the hanger 2 is gently bent rearward to form the locking portion 2.
5 and further bent obliquely upward on the front side to form a slide portion 26. The support portion 24 of the hanger 2 is inserted through the suspension bolt 3, and the nut 4 is inserted from above and below the support portion 24.
The hanger 2 is fixed using.

When the field support 1 is mounted on the hanger 2, the field support 1 is inserted from the opening 27 using the slide portion 26.
At the position where the lower plate portion 15 of the frame support 1 comes into contact with the support plate 22 of the hanger 2, and the upper end of the frame support 1 is
3 and is engaged with the hanger 2 so as to fit and hold the field edge receiver 1 inside the U-shaped section of the hanger 2. In this state, the upper ridge 11 and the lower edge 17 of the ridge 1 are in contact with the substrate 21 of the hanger 2, while the lower ridge 14 and the upper edge 16 of the ridge 1 are on the side plate of the hanger 2. Contact 23.

Note that, as shown in FIG. 3, even if the front and rear directions of the hanger 2 are changed and the field margin receiver 1 is fitted and held, the operation and effect are the same as those in the case of the original orientation. In this case, the lower rising portion 14 and the upper edge portion 16 of the ridge 1 are in contact with the substrate 21 of the hanger 2, while the upper rising portion 11 and the lower edge 17 of the ridge 1 are on the side plate portion of the hanger 2. 23
Abut.

When a ceiling structure is constructed by using the above-mentioned frame support 1, the suspension bolts 3 are placed at parallel positions at predetermined intervals.
Is installed with the hanger 2 installed, and the height of the hanger 2 is adjusted by the nut 4. Then, the field support 1 is fitted into the hanger 2 and the field support 1 is installed between the hangers 2.

Further, as shown in FIG. 4, the field edge material 5 is set in a state of being orthogonal to the field edge receiver 1 using the clip 7.
The clip 7 is provided with a locking portion 28 for locking the field material 5 at the lower portion of the substrate, and has a locking portion 29 for hooking on the field edge receiver 1 at the upper portion of the substrate. Field material 5 is section C
The C-shaped groove is used to lock the engaging portion 28 of the clip 7, the engaging portion 29 of the clip 7 is hooked on the edge support 1, and the edge material 5 is formed into a lattice shape. Attach. Then, the interior board is fixed to the lower surface of the edge material 5.

Now, as shown in FIGS. 5 and 6, the frame support 1 is hung by the hanging bolts 3 and the hanger 2, and the scaffold plate 6 is mounted on the upper part of each central portion of the two field supports 1 in the parallel state. The scaffold plate 6 is placed and a load (F) is applied to the scaffold plate 6. At this time, the ridge 1 is bent by the load (δ). Then, Noen 1
, Upper edge 11 and lower edge 17, upper edge 1
6 and the lower rising portion 14 are pressed strongly against the substrate portion 21 and the side plate portion 23 of the hanger 2 in contact with each other, and further attempt to bend, but the upper rising portion 11 and the lower rising portion 14 Since the angle of the inclined portion 13 formed therebetween is set to be approximately 50 degrees, that is, 45 degrees or more from horizontal, it plays a role of effectively supporting the load and preventing bending.

A load test for evaluating the performance of the frame receiver 1 was carried out based on the above JIS A6517.
7 (a) shows the above-mentioned field receiver 1, FIG. 7 (b) shows a field receiver 31 of the JIS standard 19 type (CC-19), and FIG. 7 (c) shows a field receiver used for general use. This shows the shape of the receiver 32. Height A (A = 38 mm) as a field support,
The basic outer size such as the width B (B = 12 mm) is the same for all of (a), (b) and (c). The difference is
The thickness t of the field support 1 is (t = 0.5 mm), while the thickness t of the JIS 19 type field support 31 is (t = 1.2 mm).
mm), and the thickness t of the general field support 32 is (t = 0.9 m).
m) and the field edge receiver 1 is a point having a substantially Z-shape having an inclined portion 13 and upper and lower edge portions 16 and 17.

FIG. 9 shows the results of the load test. 7 (c) has a maximum deflection of 5.46 mm and a residual deflection of 0.31 mm.
The specified value of ISA6517 (maximum deflection 5 mm or less) cannot be satisfied. On the other hand, the field margin 1 of FIG. 7A according to this embodiment has a maximum deflection amount of 4.27.
mm, and the residual deflection amount is 0.16 mm, which satisfies the JIS specified value.

In addition, since the thickness of the ridge 1 in FIG. 7A is 0.5 mm, the unit weight per 1 m is 0.1 mm.
2988 kg / m and a sheet thickness of 0.9 shown in FIG.
7mm with a unit weight of 0.4096 kg / m
3%. 7A according to the embodiment can save 27% of the resources and can provide a low-cost ceiling base material. Further, the sheet thickness 1.2 shown in FIG.
7 mm in comparison with the field receiver 31 of the JIS standard of mm.
In the case of (a), the weight ratio is 54.6% and about 4%.
Resource saving of 5% can be achieved.

FIG. 8 shows another embodiment of the field support. The edge support 41 has a height (38 mm) and a width (12 mm).
mm) and thickness (t = 0.5), the size of the basic outer shape as the field support, and the point of the Z shape having the inclined portion 13 are shown in FIG. Same as 1. The angle margin 41 has an angle of about 70 from the horizontal of the inclined portion 13.
The angle is set to be larger than the field margin 1.

As a result of performing the above-mentioned load test on the field margin receiver 41 shown in FIG. 8, as shown in FIG. 9, the field margin 41 has a maximum deflection of 4.88 mm and a residual deflection of 0.57 mm. Satisfies the specified value. In addition, the unit weight of the edge support 41 is 0.2922 kg / m, and the unit weight of the edge support 32 having a thickness of 0.9 mm shown in FIG.
It is 71.3% of 6 kg / m, and resource saving can be achieved. As described above, although the field margin 41 is slightly inferior to the field margin 1 in FIG. 7 (a), the JIS standard is satisfied. Accordingly, in view of the angle of the inclined portion 13 of the edge receiver 1 of FIG. 7A and the edge receiver 41 of FIG. It is considered that the angle is preferably 45 degrees or more.

Therefore, according to the field support according to the above-described embodiment, even if the thickness of the field support is reduced to 0.5 mm, the JIS can be used.
A6517 can satisfy the specifications of the maximum deflection and the residual deflection in the downward load test, maintain sufficient strength, and have a plate thickness specified by JIS6517 of 1.
The material can be greatly reduced compared to the 2mm field frame (CC-19), and the economy is excellent. The material can also be reduced compared to the general product with a thickness of 0.9mm, saving resources. It also contributes to the development. In addition, each of the edge supports can be formed by roll forming from a single plate, so that there is no need for crimping work required when performing stat forming, and there is an advantage that the circumference can be reduced. .

[0026]

As described above, according to the field support of the ceiling base material according to the present invention, the field support which is fitted and supported on the hanger and has the upper rising portion which is in contact with the substrate portion of the hanger. An upper plate portion bent in the horizontal direction, an inclined portion formed obliquely downward from the lower portion of the upper rising portion, a lower rising portion in contact with the side plate portion of the hanger, and an upper plate portion opposite to the upper plate portion. Since the lower plate portion is formed to be bent in the horizontal direction, sufficient strength can be maintained, the economy can be improved, and the product can be reduced in weight and resources can be saved.

Further, according to the field margin of the present invention, the upper edge is provided downward from the tip of the upper plate, and the lower edge is provided upward from the tip of the lower plate. This has the effect of being reinforced.

Further, according to the field margin according to the present invention, since the inclination angle of the inclined portion is formed at 45 degrees or more from the horizontal, there is an effect that sufficient strength can be secured.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a field margin according to an embodiment of the present invention.

FIG. 2 is a view showing a state in which a field support is fitted into a hanger according to the embodiment;

FIG. 3 is a view showing another state in which the field support is fitted into a hanger according to the embodiment.

FIG. 4 is a view showing a state in which a field material is attached to a field support according to the embodiment;

FIG. 5 is a diagram showing a state in which a load is applied to a field margin according to the embodiment.

FIG. 6 is a diagram showing a state in which a load is applied to the field margin according to the embodiment, viewed from another angle.

FIGS. 7A and 7B show a field support (a) according to an embodiment of the present invention and J
It is a comparison figure with IS (b) and a general field margin (c).

FIG. 8 is a diagram showing another form of a field support according to the embodiment of the present invention.

FIG. 9 is a table showing load test results.

FIG. 10 is a view showing a downward load test of a field margin support.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Field support 2 Hanger 11 Upper rising part 12 Upper plate part 13 Inclined part 14 Lower rising part 15 Lower plate part 16 Upper edge part 17 Lower edge part 21 Substrate part 23 Side plate part

Claims (3)

[Claims] 1. A substrate portion suspended from a ceiling portion and elongated in a vertical direction, a receiving plate portion bent laterally from a lower end portion of the substrate portion, and further bent upward from the receiving plate portion. A hanger having a side plate portion, which is a field edge support that is fitted and supported on the hanger, the upper hanger contacting the substrate portion or the side plate portion of the hanger; An upper plate portion, an inclined portion bent from the lower portion of the upper rising portion to a lower side of the upper plate portion and formed obliquely downward, and a side plate of the hanger formed at a lower portion of the inclined portion. And a lower plate portion which is bent in the horizontal direction opposite to the upper plate portion from the lower end of the lower rise portion. Field support for ceiling base material. 2. The ceiling according to claim 1, wherein an upper edge is provided downward from a tip of the upper plate, and a lower edge is provided upward from a tip of the lower plate. Base material for base material. 3. An apparatus according to claim 1, wherein an inclination angle of said inclined portion is formed to be not less than 45 degrees from horizontal.
Field support of ceiling base material described in.