JPH06299610A - Ceiling structure for unit building - Google Patents

Abstract

PURPOSE:To reduce site construction mandays and a structural member cost and to improve productivity and workability by easily eliminating the difference in level of a ceiling face between units. CONSTITUTION:A head joint 26 is fixed to the lower face of one side floor joist 22B between two side floor joists where floor panels 2b on an upper floor are arranged opposite to each other. A cradling 4 for supporting a ceiling face material 5 on a lower floor along a direction where it crosses floor joists 21b, 21b is arranged on the back side of the floor panel 2b. A lower corner part at the one longitudinal end of the cradling 4 is provided with a L-shaped notch 41, and the inner upper face of the notch 41 is mounted on the upper face of the inner end part of the head joint 26 and fixed. An regulating clearance H for absorbing the longitudinal error of the cradling 4 is secured between the inside face of the notch 41 and the inside face of the head joint 26. A fixing metal fitting 6 serving as a height regulating member is attached to the other end of the cradling 4, and fixed to the side face of a side joist 22b on the other side after the regulation of its height.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling structure of a unit building constructed by connecting a plurality of building units.

[0002]

2. Description of the Related Art In order to increase the industrial production rate of a building, a building unit by a wall type construction method is conventionally known as described in, for example, Japanese Patent Publication No. 58-30978. This type of building unit is constructed by vertically arranging a wall panel on a side edge portion of a floor panel. After being produced in a factory in advance, it is constructed and assembled at a construction site to form a unit building. Assembling involves first installing the lower floor building units on the foundation and then interconnecting them, and then installing the upper floor building units on top of each installed lower floor building unit and then interconnecting them. The floor surface of the floor unit of the upper-floor building unit constitutes the ceiling surface of the lower-floor building unit.

By the way, since the above-mentioned conventional building unit does not have a ceiling on a unit-by-unit basis, on the lower surface of the field bridge fixed under the floor at the time of factory production, there is a step difference in the ceiling surface generated between the adjacent units during the field construction. The ceiling assembly work was performed by nailing and fixing an adjustment plywood for adjusting the unevenness, then nailing and fixing the field edge to the lower surface, and finally attaching the ceiling surface material to the lower surface.

[0004]

However, in the conventional structure, since the adjustment plywood and the field edge are mounted while being dimensioned on site, there is a drawback that the number of on-site construction steps is large. In addition, there is a problem in that the cost of the member is relatively high because three types of parts, that is, a trim frame, an adjusting plywood, and a trim frame are required to attach the ceiling surface material. In addition, depending on the construction plan, the allocation of field fences installed at the factory was different, which was a factor that hindered productivity improvement. further,
Since it is not possible to easily adjust the level difference or unevenness of the ceiling surface by the size adjustment only by the thickness of the adjustment plywood, there is a disadvantage that the workability is poor.

The present invention has been made in view of the above circumstances, and provides a ceiling structure of a unit building capable of reducing the number of on-site construction man-hours, reducing member costs, and improving productivity and workability. It is an object.

[0006]

In order to solve the above-mentioned problems, the invention according to claim 1 forms a upper floor of a building by connecting a plurality of building units to each other, and the floor panel of each building unit. The back side of the unit gathers to form the ceiling part of the room on the lower floor, and the field edge is attached to the back side of each floor panel, and the ceiling surface material is attached to the field edge. There, a height adjusting member is attached to at least one end of the field edge, and the height adjusting member is adjusted on the vertical position thereof, and then on a side surface of a predetermined floor joist which is a frame member of the floor panel. It is characterized by being fixed.

Further, according to a second aspect of the present invention, a head joint is fixed to a lower surface of a predetermined floor joist forming a side edge portion of the floor panel with an inner end portion protruding from an inner side surface of the floor joist. In addition, a notch is provided at a lower corner of one longitudinal end of the field edge, and an inner upper surface of the notch is mounted and fixed on an upper surface of the inner end portion of the head joint.

Furthermore, in the invention according to claim 3, a notch is provided on the upper surface side of the field edge to avoid interference with a floor joist disposed in an intermediate portion of the floor panel except for side edge portions. It has a feature.

[0009]

When the ceiling structure having the above-mentioned structure is obtained, the ceiling component such as the field bridge is not provided on the lower surface of the floor panel of the upper floor building unit. On the other hand, in a factory, a height adjusting member is attached to at least one end in the longitudinal direction of a field edge that is preliminarily dimensioned so as to approximately match the length of the short side or the length of the long side of the floor panel. In this state, after building a unit building by locally combining multiple building units vertically and horizontally on the foundation, on the lower surface of a group of floor panels on the upper floor that constitutes the ceiling part of the room on the lower floor. After arranging a predetermined number of the above-mentioned rims and adjusting the height adjusting member with respect to the side joist at the joining portion between the floor panels, for example, the height adjusting member is provided on the side surface of the side joist in the normal direction. Secure it with nails or screws. According to the above configuration, it is possible to prevent the occurrence of a step difference on the ceiling surface at the joining portion between the units.

In addition, a height adjusting member is attached to one longitudinal end of the preliminarily dimensioned field edge, and a notch is provided at the lower corner of the other end, and the inner upper surface of this notch is placed on the inner end upper surface of the head joint. If fixed, it is possible to secure a clearance between the inner surface of the notch and the inner surface of the head tie, and it is also possible to absorb the error in the longitudinal direction of the field edge by using this clearance. . Further, when a notch is provided on the upper surface side of the field edge to avoid interference with the floor joist in the middle part, vibration from the floor joist is not transmitted to the field edge, so that the sound insulation effect is improved.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows the structure of a building unit 1 to which an embodiment of the present invention is applied.
After being produced in a factory in advance, it is transported to a construction site and installed on a foundation or the like to form an upper floor or a lower floor of a unit building. In the building unit 1, reference numeral 2 indicates a floor panel, and the floor panel 2 is perpendicular to the floor joists 21, 21, ... 23 is nailed to form a square frame, and floor joists 21, 21, ... And side joists 22,
.. are also attached to each other to form a floor framework, and a face material 25 such as structural plywood or particle board is attached to the upper surface of the floor framework.

Reference numerals 3, 3 and 3 denote wall panels standing along the three side edges of the floor panel 2. Each wall panel 3 has an upper end and a lower end of the vertical frames 31, 31 ,. The upper frame 32 and the lower frame 33 are abutted and nailed to these wood openings to form a wall frame, and face materials 34, 34 such as gypsum board and wood chip cement board are attached to both inside and outside of the wall frame, and further inside In this case, a heat insulating material is loaded as necessary. Further, openings such as entrances and exits and windows are formed in each wall panel 3 as needed.

FIG. 2 is a sectional view showing a ceiling structure which is one embodiment of the present invention, and FIG. 3 is a perspective view showing the structure of the main part thereof. As shown in FIG. 2, the upper floor building unit (upper floor building unit 1b) is installed on the wall panel 3a of the lower floor building unit (lower floor building unit 1a), and thus the upper floor On the back side of the floor panel 2b of the building unit 1b, on the lower surface of the end joists and side joists 22B arranged at the position corresponding to the wall panel 3a of the lower floor building unit 1a, as a connecting transverse member, and these end joists. A head joint 26 is attached along the length of the side joist 22B, and the inner end 27 of the head joint 26 is protruded toward the inside of the floor panel 2b more than the inner surface of the end joist or the side joist 22B. And the upper frame 32a of the wall panel 3a of the lower-floor building unit 1a
By having the same width as that, tight and easy connection with the upper frame 32a is achieved. In addition, in FIG. 2, each part of the lower-floor building unit 1a or the upper-floor building unit 1b corresponding to each part of the building unit 1 of FIG. To simplify.

In the ceiling structure shown in FIG. 1, floor joists 21b, 21 constituting the floor panel 2b of the upper floor building unit 1b.
b, ... and the side joists 22B and 22b below the floor joists 2
1b, 21b, ..., along the direction orthogonal to the side joists 22B, 22b, a plurality of field edges 4 having a vertically long cross section are horizontally arranged at a predetermined interval from each other, and on the lower surface of these field edges 4,
The ceiling surface material 5 is attached. These field edges 4 are cut to have a length dimension that is slightly less than the distance between the inner surfaces of the side joists 22B and 22b (span in the end direction).
Further, the field edge 4 is formed with an L-shaped notch 41 at the lower corner of the left end in the figure. The left end of the field edge 4 is fixed to the head tie 26 by tapping the nail from above with the inner upper surface of the notch 41 abuttingly placed on the upper surface of the inner end 27 of the head tie 26. There is. In addition, between the inner surface of the notch 41 and the inner surface of the head joint 26, a clearance H for adjustment for absorbing an error in the longitudinal direction of the field edge 4 is provided.
Is about 10 mm.

Further, as shown in FIG. 3, a fixing metal fitting 6 as a height adjusting member is attached to the right end portion of the field edge 4. The fixing metal fitting 6 is a metal fitting having an L-shaped cross section, and is fixed to the right end portion of the field edge 4 by screwing the one face plate 61 to the side surface of the field edge 4 and the other face plate 62.
Is faced to the inner side surface of the side joist 22b (on the side of the joint portion with the upper-floor building unit 1b arranged adjacently). Then, by adjusting the height position of the fixing bracket 6, the face plate 62
By fastening the screw to the inner side surface of the side joist 22b from the normal direction, the field edge 4 (with the field edge 4 arranged on the back side of the floor panel of the adjacent upper floor building unit 1b) )
It is fixed to the side joist 22b in a height-adjusted state.
A ceiling surface material 5 is attached to the lower surface of the field edge 4 that has been adjusted and fixed. Further, on the upper surface side of the field edge 4, a notch 4 for avoiding interference with the floor joists 21b, 21b, ...
2, 42, ... Are provided. In addition, since the wall panel of the lower floor building unit 1a is not arranged on the lower surface of the side joist 22b, no head joint is provided.

In order to obtain the ceiling having the above-mentioned structure, the lower surface of the floor panel 2b of the upper-floor building unit 1b must be previously prepared in the factory.
Only the head tie 26 is provided and the field bridge is not provided. On the other hand, the notch 41 is provided at one end of the field edge 4 which is preliminarily dimensioned, and the fixing metal fitting 6 is attached at the other end, and the field edge 4 in this state is transported to the construction site. At a construction site, a plurality of upper floor building units 1b are installed on top of a plurality of lower floor building units 1a installed on a foundation. After this installation, the field edge 4 is arranged on the back side of the floor panel 2b of the upper floor building unit 1b, and the notch 41 side of the field edge 4 is placed on the upper surface of the head joint 26, while the fixing metal fitting 6 is attached to the side joist 22b. On the other hand, the height is adjusted (so that the step difference between the units does not occur in the field edge 4), and then the screw is fixed to the side surface of the side joist 22b. As a result, the fixing of the field edge 4 is completed, and thereafter the ceiling panel 5 is attached to the lower surface of the field edge 4 to complete the ceiling assembly work.

According to this structure, the field bridge and the adjusting plywood which are conventionally used can be omitted. Therefore, the number of members can be reduced, the cost of members can be reduced, and the work of attaching them is not required, so that the productivity is improved. Further, the field edge 4 is made into a component, and the dimension in the longitudinal direction is adjusted by the clearance H, and the height dimension is adjusted by the fixing metal fitting 6.
Since it can be easily performed with, it is possible to easily eliminate the step difference on the ceiling surface generated between the units. Also, there is no need to measure the size of the field at the site. Therefore, the number of on-site construction steps can be significantly reduced. Further, since the height of the field edge 4 can be adjusted by adjusting the mounting position of the fixing metal fitting 6, it is possible to make the height adjustment width large and the workability is improved. Further, since the notch 42 is provided on the upper surface of the field edge 4 to avoid interference with the floor joists 21b, 21b, ... In the middle part, the sound insulation is not impaired.

The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration is not limited to this embodiment, and there are design changes and the like within a range not departing from the gist of the present invention. Also included in the present invention. For example, the fixture of the fixture 6 to the face plates 61 and 62 is not limited to screws and may be nails. Further, in order to facilitate the positioning of the mounting height of the fixing bracket 6, as shown in FIGS. 4 (a) and 4 (b), a mark P such as a straight line or a scale is marked on the side surface of the side joist 22b. This will further improve productivity. Further, as shown in FIG. 5, a wooden crosspiece 7 may be used instead of the fixing bracket 6.

[0019]

As described above, in the ceiling structure of the unit building according to the present invention, the field edge is directly fixed to the side joist or the end joist on the upper floor, so that no field edge receiving is required. Further, since the height dimension of the field edge is adjusted by the height adjusting member, the adjusting plywood is unnecessary. Therefore, the number of parts can be reduced, the cost of members can be reduced, and the productivity can be improved. In addition, since the field edge is made into a component, and the clearance for longitudinal dimension adjustment is provided on one side and the height adjustment member is provided on the other side, error adjustment and height adjustment can be easily performed, and the ceiling surface step difference between units is easy. Can be resolved. Also, there is no need to take measurements on-site, and the number of on-site construction steps can be greatly reduced. Further, since the height adjustment width can be made large, the workability is improved. Furthermore, if the interference between the field edge and the floor joist in the middle part is avoided, the sound insulation will not be impaired.

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration of a building unit to which an embodiment of the present invention is applied.

FIG. 2 is a sectional view showing a ceiling structure of a unit building which is an embodiment of the present invention.

FIG. 3 is a perspective view showing a main part of the ceiling structure.

FIG. 4 is a diagram for explaining a construction procedure of a portion shown in FIG.

5 is a perspective view showing another example of the portion shown in FIG.

[Explanation of symbols]

 1b Upper floor building unit 2, 2b Floor panel 4 Field edge 5 Ceiling surface material 6 Fixing metal fitting (height adjusting member) 21b Floor joist 22b, 22B Side joist (predetermined floor joist) 26 Head joint 41 Notch 42 Notch H clearance

Claims (3)

[Claims] 1. A plurality of building units are interconnected to form an upper floor of a building, the back side of floor panels of each building unit are gathered to form a ceiling portion of a room on a lower floor, and each floor is formed. In the ceiling structure of the unit building in which the field edge is attached to the back side of the panel and the ceiling surface material is attached to the field edge, a height adjusting member is attached to at least one end of the field edge,
A ceiling structure of a unit building, wherein the height adjusting member is adjusted in the vertical position and then fixed to a side surface of a predetermined floor joist which is a frame member of the floor panel. 2. A head joint is fixed to a lower surface of a predetermined floor joist that constitutes a side edge portion of the floor panel, with an inner end portion protruding from an inner side surface of the floor joist, and a longitudinal length of the field edge. The ceiling structure of the unit building according to claim 1, wherein a notch is provided at a lower corner of one end of the direction, and an inner upper surface of the notch is placed and fixed on an upper surface of the inner end of the head joint. 3. The unit according to claim 1, wherein a cutout for avoiding interference with a floor joist is provided on an upper surface side of the field rim, the middle part of the floor panel excluding a side edge part. The ceiling structure of the building.