JPH0842047A - Deflection prevention structure of hung ceiling - Google Patents

Abstract

PURPOSE:To prevent generation of deflection by forming an insertion hole into which the end of a ceiling batten is inserted, on the end floor joist to be installed to a ceiling and upper story head tie members, and engaging the ceiling batten with the insertion hole and thereby installing a lower story ceiling board. CONSTITUTION:An end 4a of a ceiling batten 4 is inserted 4 into a fitting part formed on an insertion hole 15b of an end tie beam 6. A furring strip 7 is installed to the bottom 4d of the ceiling batten 4 by way of a plywood 4e. The furring of the ceiling batten 4 by way of a plywood. The furring strip 7 is separated at a spot lower than the bottom 3a of a floor joist 3 and fixed with the ceiling batten 4 so that a lower story ceiling board may be installed evenly. It is, therefore, possible to form a deflection prevention structure of a hung ceiling which prevents the lower story ceiling board 8 from being deflected and undulated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a structure for preventing the bending of a suspended ceiling of a building ceiling structure.

[0002]

2. Description of the Related Art A conventional suspended ceiling structure of this type is disclosed in, for example, JP-A-4-238935 as shown in FIGS.
What is described in Japanese Patent Publication is known.

In such a structure, the floor plate 2 of the upper floor 1
Between the plurality of adjacent floor joists 3 for supporting the floor joists 3 are provided in parallel with the floor joists 3 and constitute a part of the ceiling board support member.

Both ends 4a, 4a of the field rim receiver 4 are brought into contact with the side surface 5a of the end joist 5 as a floor structure as shown in FIG. 6
The lower surface side connecting portion 4c is placed on a and fixed by nails or the like.

Then, on the lower surface 4d of the field receiver 4,
A field edge 7 is arranged with a plywood 4e having a thickness of about 9 mm interposed. Therefore, rather than the lower surface 3a of the floor joist 3,
The field edge 7 is fixed so that the field edges 7 are located at a distance of about 9 mm downward. The lower floor ceiling plate 8 is fixed to the fields 7.

In the conventional suspended ceiling structure thus configured, the lower floor ceiling plate 8 and the floor plate 2 of the upper floor portion 1 are independently attached by the field bridges 4 ... Therefore, the vibration of the floor plate 2 of the upper floor portion 1 transmitted from the lower ceiling plate 8 to the lower floor is blocked.

[0007]

However, in the conventional suspended ceiling structure shown in FIGS. 5 and 6, the lower surface side connecting portion 4c of the field edge receiver 4 has the upper surface 6a of the upper floor head connecting member 6a. Since it is directly fixed with respect to, there is a risk that it may fall and be fixed while being inclined as shown by the chain double-dashed line in FIG. Thus, when the field edge receiver 4 is fixed while being inclined with respect to the upper surface 6a, the field edge 7 that is fixed to the field edge receiver 4 ...
Also bends as shown by the chain double-dashed line in FIG. For this reason, there has been a problem that the lower floor ceiling plate 8 arranged in the fields 7 ...

Therefore, an object of the present invention is to provide a structure for preventing bending of a suspended ceiling in which there is no fear that the lower floor ceiling plate will be bent and wavy.

[0009]

In order to achieve the above-mentioned object, according to the first aspect of the present invention, the end portion is fixed to the frame body arranged on the ceiling portion and the lower surface side is fixed. A structure for preventing flexure of a suspended ceiling having a ceiling plate support member on which a lower floor ceiling plate is disposed, wherein a fitting portion for fitting an end portion of the ceiling plate support member is formed in the frame body. It features a structure to prevent the suspended ceiling from bending.

According to the second aspect of the present invention, the frame body has a floor joist, a side joist, and an end joist, and the fitting portion is formed on the end joist, and the ceiling board support member. The bending prevention structure for a suspended ceiling according to claim 1, wherein the bending hole is an insertion hole for inserting and fixing the end of the.

According to the third aspect,
The frame body has an end joist, a head joint fixed to the lower end of the end joist, and end fixing members extending upward at regular intervals along the parallel to the head joint, and The bending prevention structure for a suspended ceiling according to claim 1, wherein the fitting portion is an insertion groove formed between the head tie and the end fixing member.

[0012]

[Operation] According to the first aspect of the present invention configured as above, since the end portion of the ceiling plate support member is fitted into the fitting portion formed in the frame body, after the fixing, The ceiling board support member is arranged with high horizontal mounting accuracy.

Therefore, the lower floor ceiling plate arranged on the lower surface side of the ceiling plate supporting member can also be arranged flat without bending or waviness.

According to the second aspect of the present invention, the end portion of the ceiling plate support member is inserted and fitted into the insertion hole formed in the end joist. The horizontal inclination accuracy of the insertion hole formed in the end joist is that the end joist is extended horizontally, so by forming the insertion hole in accordance with the extension direction of the end joist, It is possible to easily improve the mounting accuracy of the ceiling plate support member.

Therefore, the mounting accuracy in the horizontal direction after arranging the ceiling plate support member is good, and the lower floor ceiling plate arranged on the lower surface side of the ceiling plate support member is not bent or bent. Further, it can be arranged flat without waviness.

Further, according to the third aspect of the present invention, the end portion of the ceiling plate supporting member is inserted and fitted in the insertion groove formed between the head tie and the end fixing member. The accuracy of inclination of the insertion groove in the horizontal direction is such that the head tie and the end fixing member are arranged parallel to each other, so that at least one of the horizontal accuracy should be good. ,
The accuracy can be easily made good.

Therefore, the horizontal accuracy of the ceiling board support member after the arrangement is good, and the lower floor ceiling board arranged on the lower surface side of the ceiling board support member is also bent or corrugated. Further, it can be arranged flat without hitting.

[0018]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 3 show a structure for preventing the bending of a suspended ceiling according to a first embodiment of the present invention. The same or equivalent parts as those in the conventional example will be described with the same reference numerals.

First, in the structure for preventing the bending of the suspended ceiling according to the first embodiment, the frame body for supporting the floor plate 2 of the upper floor portion 1 has end joists 15 and 15 as shown in FIG. , The side joist 3 that fixes the end joists 15 and 15 between both ends
c, 3c and the side joists 3c, 3c are arranged at a constant interval, and both end portions 3b, 3b are connected to the end joists 15, 15
Are mainly constituted by a plurality of floor joists 3 ... Abutting and fixed to the side surfaces 15a, 15a, and upper joist head joints 6, 6 fixed to the lower ends of the end joists 15, 15.

Of these, on the side surfaces 15a, 15a of the end joists 15, 15 arranged on the peripheral edge of the ceiling portion, there are insertion holes 15b ...
One is provided between the b-positioned positions, and one is provided between the end part 3 b and the end-positioned positions of the side joists 3 c with a predetermined interval.

The insertion hole 15b is formed in the side surface portion 15a of the end joist 15 by cutting out from the lower surface side of the end joist 15 to form a concave shape that opens the lower surface side. By fixing the end joist 15, the end portion 4a is configured so as to have a four-sided shape in which the end portion 4a is horizontally inserted and fitted from the side surface portion 15a.

Between the side joists 3c and 3c and a plurality of adjacent floor joists 3 ... And between the floor joists 3 and 3, the side joists 3c and 3c and the floor joists 3 are arranged in parallel. In addition, the field rim receivers 4 ... Which form a part of the ceiling board support member are provided.

The field receiver 4 is composed of a rod-shaped member having a square cross section. Both ends 4a, 4 of the field receiver 4
The a is inserted into the insertion holes 15b, 15b, respectively, and is fixed by abutting the lower surface side connecting portion 4c on the upper surface 6a of the upper crest joint 6 as a frame body.

On the lower surface 4d of the field receiver 4,
A field edge 7 is arranged with a plywood 4e having a thickness of about 9 mm interposed. Therefore, rather than the lower surface 3a of the floor joist 3,
The field edge 7 is fixed so that the field edges 7 are located at a distance of about 9 mm downward. The lower floor ceiling plate 8 is fixed to the fields 7.

Next, the operation of the first embodiment will be described.

Insertion hole 15b formed in the end joist 15
2, the end portion 4a of the field edge receiver 4 is inserted and fitted from the lateral direction orthogonal to the horizontal direction, so that the field edge receiver 4 fixed by this fitting is directly or The field edge receiver 4 fixed with nails or an adhesive or the like by using this fitting as a temporary fixing can be arranged so that the horizontal mounting accuracy is good.

Therefore, the lower floor ceiling plate 8 arranged on the lower surface side of the field frame receiver 4 through the plywood 4e and the field frame 7 ... Does not bend or wave. It can be arranged flat.

Further, in the first embodiment, the joist end joist 15
The end portion 4a of the field edge receiver 4 is inserted into and fitted into the fitting portion formed by the insertion hole 15b and the upper surface portion 6a of the upper-tier head connection 6. The horizontal inclination accuracy of the insertion hole 15b formed in the end joist 15 is that the end joist 15 is extended horizontally, and therefore the shape of the insertion hole 15b is adjusted according to the extending direction of the end joist 15. By forming it, horizontal accuracy can be easily obtained. Moreover, in the first embodiment, the upper surface portion 6a of the upper floor head joint 6 is also one in which the upper floor head joint 6 is horizontally extended, so that horizontal accuracy is obtained in advance. Therefore, the horizontal mounting accuracy of the field edge receiver 4 can be made good, and the lower floor arranged on the lower surface side of the field edge receiver 4 via the plywood 4e and the field edge 7 ... The ceiling plate 8 can also be arranged flat without bending or waviness.

Then, for example, the end 4a of the field edge receiver 4 is inserted into the insertion hole 15b from the lateral direction orthogonal to the horizontal direction and fitted, and this fitting is used as a temporary fixing, and a nail or an adhesive is further used. In the case of fixing by means such as nailing, even if the hitting force in an unexpected direction generated by nailing etc. acts on this end 4a, the end 4a is fitted in the insertion hole 15b, so that it is the same as the conventional one. There is no risk of falling or the like, and the horizontal mounting accuracy of the field edge receiver 4 can be improved.

FIG. 4 shows a structure for preventing the bending of a suspended ceiling according to the second embodiment of the present invention. The same or equivalent portions as those in the first embodiment will be described with the same reference numerals.

In the structure for preventing the bending of the suspended ceiling according to the second embodiment, the frame body includes the end joists 5 and 5, the upper floor head joint 6 fixed to the lower ends of the end joists, and the upper floor head joint. 6 along the parallel with 6 at a certain interval above, the end joist 5
And an end fixing member 9 which is fixed and extended to the side surface 5a of the.

The fitting portion is formed between the upper crest joint 6 and the end fixing member 9 and is constituted by an insertion groove 10 extending along the horizontal direction.

The insertion groove 10 of the second embodiment is extended in the horizontal direction so that the end portions 4a of the plurality of field edge receivers 4 ... Are inserted and fitted at predetermined intervals. It is configured to be worn.

Next, the operation of the second embodiment will be described.

In the second embodiment, the upper floor connecting member 6 is used.
The end portion 4a of the field edge receiver 4 as the ceiling plate supporting member is inserted and fitted into the insertion groove 10 formed between the end fixing member 9 and the end fixing member 9. The horizontal inclination accuracy of the insertion groove 10 is such that the upper floor joint 6 and the end fixing member 9 are arranged in parallel with each other, so that at least one of the horizontal accuracy is good. By adopting such a method, it is possible to easily improve the accuracy.

For this reason, the horizontal accuracy after the field edge receiver 4 is arranged is good, and the lower surface side 4d of the field edge receiver 4 is improved.
In addition, the lower-floor ceiling plate 8 arranged via the plywood 4e and the field edge 7 can be further arranged flat without bending or waviness.

The other structure and operation are substantially the same as those of the first embodiment, and the explanation thereof will be omitted.

The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific structure is not limited to this embodiment, and the present invention can be applied even if there is a design change or the like within the scope not departing from the gist of the present invention. include.

For example, in the first embodiment, the fitting portion is formed by the insertion hole 15b and the upper surface 6a of the upper head splice 6, but the invention is not particularly limited to this.
Regardless of any fitting part such as forming a fitting part by forming a square insertion hole on the side surface 15a of the end joist 15, the end part 4a of the field rim receiver 4 which is the ceiling plate supporting member. Of course, it is good if is fitted.

Further, in the second embodiment, the fitting portion is constructed by forming the insertion groove 10 between the end fixing member 9 and the insertion hole 15b, but it is not limited to this, and for example, The concave insertion groove 10 may be formed on the side surface 15 a of the end joist 15.

Further, the insertion groove 10 is extended in the horizontal direction so that the end portions 4a of the plurality of field edge receivers 4 can be fitted respectively. For example, a short end portion fixing member. 9
A plurality of ... Is arranged, the horizontal extension distance of each insertion groove 10 is shortened, and the end portions 4a of the field edge receivers 4 are individually inserted and fitted. It is needless to say that no matter how the number and shape of the inserts are inserted, as long as they are fitted so that the horizontal mounting accuracy of the field edge receiver 4 is good.

Further, in each of the above-mentioned embodiments, the lower floor ceiling plate 8 is fixed by using the plywood 4e and the field rims 7 as the ceiling plate support member with the plywood 4e and the field rim 7 ... Not limited to this, for example, even if one of the plywood 4e or the field edge 7 is interposed or the lower floor ceiling plate 8 is directly fixed to the field edge receiver 4, the lower floor ceiling is provided on the lower surface side. It is sufficient if the plate 8 is provided.

[0044]

As described above, according to the first aspect of the present invention, the end portion of the ceiling plate support member is fitted to the fitting portion formed on the frame. Therefore, the fixed ceiling plate support member is arranged with high horizontal mounting accuracy.

Therefore, the lower floor ceiling plate arranged on the lower surface side of the ceiling plate supporting member can also be arranged flat without bending or waviness.

According to the second aspect of the present invention, the end portion of the ceiling plate support member is inserted and fitted into the insertion hole formed in the end joist. The horizontal inclination accuracy of the insertion hole formed in the end joist is that the end joist is extended horizontally, so by forming the insertion hole in accordance with the extension direction of the end joist, It is possible to easily improve the mounting accuracy of the ceiling plate support member.

Therefore, the mounting accuracy in the horizontal direction after disposing the ceiling plate supporting member is good, and the lower floor ceiling plate disposed on the lower surface side of the ceiling plate supporting member is not bent or bent. Further, it can be arranged flat without waviness.

Further, according to the third aspect, the end portion of the ceiling plate supporting member is inserted and fitted into the insertion groove formed between the head tie and the end fixing member. The accuracy of inclination of the insertion groove in the horizontal direction is such that the head tie and the end fixing member are arranged parallel to each other, so that at least one of the horizontal accuracy should be good. ,
The accuracy can be easily made good.

For this reason, the horizontal accuracy of the ceiling plate supporting member after it has been arranged is good, and the lower floor ceiling plate arranged on the lower surface side of the ceiling plate supporting member also bends or undulates. It has a practically useful effect that it can be arranged flat without hitting.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional perspective view illustrating a structure for preventing bending of a suspended ceiling according to a first embodiment of the present invention and illustrating the overall configuration.

FIG. 2 is a perspective view of a main part showing a structure for preventing bending of a suspended ceiling according to the first embodiment.

FIG. 3 is a plan view of the upper floor section showing the structure for preventing the bending of the suspended ceiling of the first embodiment.

FIG. 4 is a perspective view of a main part showing a structure for preventing bending of a suspended ceiling according to a second embodiment of the present invention.

FIG. 5 is a partial cross-sectional perspective view illustrating a conventional suspended ceiling structure and illustrating the overall configuration.

FIG. 6 is a sectional view of a main part showing a conventional suspended ceiling structure.

[Explanation of symbols]

 1 Upper floor (ceiling) 4 Field edge receiver (ceiling board support) 4a Edge frame 3 Floor joist 3c Side joist 6 Upper story head joint 9 End fixing material 15 Edge joist fitting 10 Insertion groove 15b Insertion hole 8 Lower floor ceiling plate

Claims (3)

[Claims] 1. A flexure prevention structure for a suspended ceiling, comprising: an end portion fixed to a frame body disposed on a ceiling portion; and a ceiling plate support member for arranging a lower floor ceiling plate on a lower surface side, A structure for preventing bending of a suspended ceiling, wherein a fitting portion for fitting an end portion of the ceiling plate support member is formed in the frame body. 2. The frame body has a floor joist, a side joist, and an end joist, and the fitting portion is formed on the end joist, and the end portion of the ceiling board support member is inserted and fixed. The structure for preventing bending of a suspended ceiling according to claim 1, wherein the structure is a hole. 3. The frame body includes an end joist, a head joint fixed to the lower end of the end joist, and end fixing members extending upward at a constant interval in parallel with the head joint. The bending prevention structure for a suspended ceiling according to claim 1, wherein the fitting portion is an insertion groove formed between the head tie and the end fixing member.