JP2001193213A - 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 and saved, regarding the cradling receiver used for a ceiling foundation material. SOLUTION: In the cradling receiver inserted and support to a hanger 2 being hung down from a ceiling section and having a long-sized substrate section 21 in the vertical direction, a backing plate section 22 and a side plate section 23 bent and formed upwards, a structure having an upstanding section 11a on the upper side and an upstanding section 11b on the lower side brought into contact with the substrate section 21 or side plate section 23 of the hanger, an upper plate section 12a and a lower plate section 12b bent and formed in the same horizontal direction from the upper end section of the upstanding section on the upper side and the lower end section of the upstanding section on the lower end respectively and a bent section 15, which is projected and bent and formed in approximately the same size as the breadth size of the upper and lower plate sections extending over the upper section of the upstanding section 11b on the lower side from the lower section of the upstanding section 11a on the upper side and in which the bent front end section is abutted against the side plate section 23 or substrate section 21 of the hanger 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, a U-shaped cross section (CC-19) as shown in the JIS A6517 standard for architectural steel base material is shown in FIG. As described above, the upper and lower ends of the U-shaped field support are bent inward to form a C-shaped field support 50 (see FIG. 52).
-97814).

[0003] In order to evaluate the quality of this field support, JIS
According to the A6517 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. Then, 735.50 is placed on this scaffold plate 54.
When a load of N (75 kgf) is applied, the maximum deflection amount and the residual deflection amount at the center between the suspension bolts 51 of the field margin support 52 are measured. The field support used in this test has a U-shaped cross section and a plate thickness of 1.2 mm (CC-19).

[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, a field support of a ceiling base material according to the present invention is suspended from a ceiling portion and has a vertically long substrate portion 21; Plate portion 22 formed to be bent laterally from the lower end portion of side plate, and side plate portion 2 formed to be bent further upward from the plate portion
And a lower edge 11b, which is formed separately on the upper and lower sides and is in contact with the substrate portion 21 or the side plate portion 23 of the hanger, respectively. And an upper plate portion 12a which is formed to be bent in the same lateral direction from an upper end portion of the upper rising portion and a lower end portion of the lower rising portion, and has a length slightly shorter than the inner size of the receiving plate portion of the hanger. And the lower plate portion 12b and the lower portion of the upper rising portion 11a to the upper portion of the lower rising portion 11b, and are formed to be bent so as to have substantially the same width as the upper and lower plate portions. A bent portion 15 that comes into contact with the side plate portion 23 or the substrate portion 21 of the hanger.

[0008] The edge support of the ceiling base material according to the present invention comprises an upper edge 13a and a lower edge 1a which are bent in opposite directions from the respective tops of the upper plate and the lower plate.
3b.

[0009] Further, in the edge support of the ceiling base material according to the present invention, the bent portion 15 is formed from two sides 15a and 15b having a cross section of 90 degrees or an angle of 90 degrees or more. Moreover, the edge support of the ceiling base material according to the present invention is such that the bent portion is formed in a semicircular cross section or an arc shape having a larger radius of curvature than this.

[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. 2 is a side view of the edge support 1 of the ceiling base material. This edge support 1 is formed by bending a steel plate.
Upper ridge 11a formed vertically in a vertical direction
And a length slightly shorter than the inner dimension of the receiving plate portion of the hanger from the upper portion 11b, the upper portion of the upper portion 11a and the lower end of the lower portion 11b. Upper and lower plate portions 12a and 12b, and upper and lower edge portions 13a and 13b bent at right angles in opposite directions from the upper and lower plate portions 12a and 12b, respectively.
An opening 14 is formed between the upper and lower edges 13a and 13b.

[0011] Further, the edge support 1 extends from the lower portion of the upper rising portion 11a to the upper portion of the lower rising portion 11b.
In the direction of the front opening 14, a two-sided triangle having a distal end portion 16 having a protrusion height (the position of the front end of the upper and lower edges 13 a, 13 b) of the same size as the width of the upper and lower plates 12 a, 12 b Fifteen
It has a bent portion 15 which is bent in the shape of a "ku" forming a and 15b. And the two sides 1 of this bent portion 15
The angle formed by 5a and 15b is approximately 100 degrees.

As shown in FIG. 2, the ridge 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 includes 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 12b of the field edge support 1 comes into contact with the receiving plate portion 22 of the hanger 2, the upper end of the field edge support 1 is locked by the locking portion 25 of the side plate portion 23, and The field edge receiver 1 is fitted and held inside the U-shaped cross section. In this state, the upper and lower upper portions 11a and 11b of the field support 1 are in contact with the substrate 21 of the hanger 2, while the upper and lower edges 13a and 1b of the field support 1 are in contact.
3b and the tip 16 of the bent portion 15
Abuts against the side plate portion 23.

As shown in FIG. 3, the front and rear directions of the hanger 2 are changed so that the upper and lower standing portions 11a, 1
1b abuts against the side plate portion 23 of the hanger 2, while the upper and lower edges 13 a and 13 b of the field support 1 and the tip 16 of the bent portion 15 respectively contact the substrate portion 21 of the hanger 2. Is the same as in the original orientation above.

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
It is shaped like a letter, and the locking part 28 of the clip 7 is locked in this C-shaped groove. The clip 7 is engaged with the edge material 5, the hook 29 of the clip 7 is hooked on the edge receiver 1, and the edge material 5 is attached in a lattice shape. Then, the interior board is fixed to the lower surface of the edge material 5.

Now, as shown in FIGS. 5 and 6, the scaffold plate 6 is placed on the upper part of the center of each of the two edge supports 1 suspended by the suspension bolts 3 and the hangers 2, and
A load (F) is applied to the scaffold plate 6. At this time, field reception 1
Is bent by the load. Then, the tip portion 16 of the bent portion 15 of the field edge support 1 is pressed against the side plate portion 23 of the hanger 2,
A fulcrum of the load is formed not only at the lower plate portion 12b of the frame support 1 but also at the place where the bent portion 15 contacts, whereby the deflection of the frame support 1 can be reduced.

A load test for evaluating the performance of the ridge 1 constituting the ceiling structure was performed based on the above-mentioned JIS A6517. FIG. 7 (a) is a view showing the above-mentioned field edge receiver 1, and FIG.
(B) is a field support 40 of JIS standard 19 type (CC-19).
And FIG. 7 (c) shows a field support 3 generally used.
0 shows the shape. Height A as a field support
(A = 38 mm), the basic outer size such as the width B (B = 12 mm) are the same for both (a), (b) and (c). The difference is that the thickness t of the field support 1 is (t = 0.5), whereas the thickness t of the JIS 19 type field support 40 is (t = 0.5).
1.2), the thickness t of the general-purpose field edge support 30 is (t = 0.
9), and the edge support 1 has a bent portion 15 and an edge 13
a and 13b.

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 SA6517 (maximum deflection 5 mm or less) cannot be satisfied. On the other hand, in the case 1 of FIG. 7A, the maximum deflection amount is 4.16 mm and the residual deflection amount is 0.07 mm, which satisfies the JIS prescribed values. 7 (a) has an unfolded width of 80.8 mm when it is unfolded on a plane, and has a U-shaped union as shown in FIGS. 7 (b) and 7 (c). It becomes large when the development width is 58.4 mm.

However, since the thickness of the ridge 1 in FIG. 7 (a) is 0.5 mm, the unit weight per 1 m is 0.1 mm.
317 kg / m, and a sheet thickness of 0.9 m shown in FIG.
Unit weight 0.4096 kg / m7
It becomes 7.4%. Therefore, the field receiver 1 in FIG.
A 2.6% resource saving can be achieved, and a low-cost ceiling base material can be provided. Also, a JI having a thickness of 1.2 mm shown in FIG.
Compared to the S standard field receiver 40, the field receiver 1 of FIG. 7A has a unit weight ratio of 57.9%, and resource saving of about 42% can be achieved.

FIG. 8 shows another embodiment of the field support. These are height A (A = 38 mm) and width B (B =
12 mm), and the size of the basic outer shape as a field support such as a thickness (t = 0.5) is the field support 1 shown in FIG.
Is the same as The different point of each edge support is the shape of the bent portion 15.

The ridge 31 shown in FIG.
The angle formed by the two sides 15a and 15b of No. 5 is 90 degrees. Also for this field edge support 31, the edge portions 13a, 13b
The front end 16 of the bent portion 15 is located on a line connecting the front ends of the bent portions 15.

As a result of performing the above-mentioned load test on the field support 31 shown in FIG. 8A, as shown in FIG. 9, the maximum deflection of the field support 31 is 4.31 mm, and the residual deflection is 0. 0.21 mm, which satisfies the JIS prescribed value. Further, the unit weight is 0.3196 kg / m, and resource saving can be achieved. As described above, the field receiver 1 (the angle of about 1) shown in FIG.
00 degree) is superior in the characteristic of the amount of deflection as compared with the field margin 31 (angle 90 degrees) in FIG.
The angle between a and 15b is more preferably 90 degrees or more.

8 (b) and 8 (c).
Reference numeral 33 denotes the bent portion 15 having an arc shape. FIG. 8B
Of the bent part 15 has a semicircle (R12m
m), and the ridge 33 in FIG.
5 has a shape of about 1/3 circle (the radius of curvature is larger than R12), and both edge portions 13a, 13b of the field support are provided.
The front end 16 of the bent portion 15 is located on a line connecting the front ends of the bent portions 15.

As a result of performing the above-mentioned load test on the field support 32 shown in FIG. 8B, the maximum deflection of the field support 32 is 3.85 mm and the residual deflection is 0.20 mm. Satisfies the specified value. The unit weight is 0.1.
333 kg / m, and resource saving can be achieved. As described above, the field support 32 has more excellent deflection amount characteristics than the field support 1 of FIG. 7A, and it is preferable that the bent portion 15 be formed in an arc shape. It is expected that the load bearing 33 shown in FIG. 8C can obtain the same load characteristics as the field bearing 32.

FIG. 8 (d) and FIG.
Reference numeral 35 denotes a bent portion 15 having a trapezoidal shape. FIG. 8 (d)
The angle between the trapezoidal oblique sides of the bent portion is 90 degrees or more, and the angle between the trapezoidal oblique sides of the bent portion is slightly less than 90 degrees. The tip 16 of the bent portion 15 has a small shape, and is located on a line connecting the front ends of the edge portions 13a and 13b of the field support. FIG. 8 also shows these field receivers 34 and 35.
It is expected that load characteristics similar to those of the field margin receiver 31 shown in FIG.

Therefore, according to the field support according to the above embodiment, even if the thickness of the field support is as thin as 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, it is apparent that each of the above-mentioned 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. .

[0029]

As described above, according to the field support of the ceiling base material according to the present invention, the field support supported by the hanger, which is formed separately from the upper and lower parts, Since the upper plate portion and the lower plate portion that are formed to be bent in the horizontal direction and the bent portion that is formed to be bent to be substantially the same as the width of the upper and lower plate portions are formed, sufficient strength is maintained, This has the effect of being excellent in economical efficiency, reducing the weight of the product and saving resources.

Further, according to the field support of the ceiling base material according to the present invention, the ceiling base material has an upper edge and a lower edge which are bent in opposite directions from respective ends of the upper plate and the lower plate. Therefore, there is an effect that the strength is reinforced.

Further, according to the roofing material of the ceiling base material according to the present invention, the bent portion is formed from two sides having a cross section of 90 degrees or an angle of 90 degrees or more, or a semicircular cross section, or Since it is formed in an arc shape having a larger radius of curvature, there is an effect that molding is easy and sufficient strength can be secured.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a field support of a ceiling base material 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 view showing another state in which a load is applied to the field margin support according to the embodiment.

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 and general wildlife receiver (b), (c).

FIG. 8 is a diagram showing various forms (a), (b), (c), (d), and (e) of a field margin according to the embodiment of the present invention.

FIG. 9 is a table showing the results of a load test.

FIG. 10 is a view showing a field support according to a conventional example.

FIG. 11 is a view showing a downward load test of a field margin support.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Field support 2 Hanger 11a Upper rising part 11b Lower rising part 12a Upper plate part 12b Lower plate part 13a Upper edge part 13b Lower edge part 15 Bent part 21 Board part 23 Side plate part

Claims (4)

[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 field edge support fitted and supported on a hanger having a side plate portion, wherein the upper and lower ridges are formed separately from each other and are respectively in contact with a substrate portion or a side plate portion of the hanger; The upper plate portion and the lower plate portion, each of which is formed to be bent in the same lateral direction from the upper end portion of the rising portion and the lower end portion of the lower rising portion, and has a length slightly shorter than the inner size of the receiving plate portion of the hanger. From the lower portion of the upper rising portion to the upper portion of the lower rising portion, the upper and lower plate portions are formed so as to protrude to have substantially the same width as the width of the upper and lower plate portions. Characterized by having a bent portion abutting against Of the base material for the ceiling. 2. From each end of the upper plate and the lower plate,
The ridge support of the ceiling base material according to claim 1, wherein the ridge support has a top edge portion and a bottom edge portion bent in opposite directions, respectively. 3. The ridge support of a ceiling base material according to claim 1, wherein the bent portion is formed from two sides having a cross section of 90 degrees or an angle of 90 degrees or more. 4. The edge support of a ceiling base material according to claim 1, wherein the bent portion is formed in a semicircular cross section or in an arc shape having a larger radius of curvature than the cross section.