JP2601749Y2 - Mortise with metal mortise - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beam receiving fitting for connecting an end of a beam to a column when the beam is mounted on a column or the like in building construction.

[0002]

2. Description of the Related Art Conventionally, when a beam is mounted on a pillar in the construction of a building, a tenon is formed at the end of the beam, and the tenon is fitted and fixed in a tenon hole formed on the pillar side. According to such means, a tenon and a tenon must be formed in each of the beam and the pillar, and a sophisticated mortise and tenon are required to form the tenon and the tenon. There is a problem that the construction work is complicated because the technique and the troublesome labor are required.

In order to solve such a problem, the present applicant has proposed a box-shaped metal fitting having a front surface and a top surface opened, and a tenon-shaped projection protruding from an outer surface of a back plate ( No. 3-108103). When this metal fitting is used, the fitting provided on the metal fitting is fitted into the mortise pierced in the pillar, and the metal fitting is fixed to the pillar with a nail screw or the like, and then the metal fitting is surrounded between the left and right side plates and the bottom plate. By inserting and fixing the end of the beam in the empty space, the pillar and the beam can be mounted.

[0004]

However, since the box-type fitting as described above supports the lower surface of the end of the beam with the bottom plate, if the dimensions of the end of the beam vary due to drying shrinkage or moisture absorption of the beam, the beam may be damaged. There is a problem that the beam cannot be mounted on the column so that the upper surface of the beam is located at a certain height. That is, when the vertical width of the beam end is long, the upper surface of the beam protrudes from the upper end of the bracket, and when the vertical width of the beam end is shorter, the difference in height between the upper end of the bracket and the upper surface of the beam is small. The resulting gap is left open. As a result, the upper surface of the beam after mounting is not located at a fixed height, and the beam may be mounted obliquely from one end to the other end. The construction accuracy at the time of wearing was inferior, and floor materials and the like could not be constructed directly on the mounted beams. In order to cope with this, the height of the construction surface on the beam must be uniform, for example, by filling the space between the bottom plate of the bracket and the lower surface of the beam, or by attaching a joist on the beam. However, the construction work was very complicated.

The present invention has been made in order to solve the above-mentioned problem, and while keeping the upper surface of the beam at a fixed position,
An object of the present invention is to provide a beam receiving bracket capable of connecting a beam and a column and connecting a large beam and a small beam, and further simplifying construction work.

[0006]

SUMMARY OF THE INVENTION The present invention comprises two side plate pieces whose upper edges are obliquely inclined and a tenon portion projecting rearward, and between the two side plate pieces on the rear side of the side plate pieces. A portion excluding a tenon portion is open, and a cutout support portion having an open top is formed in the side plate piece, and a cutout at the front end side of the side plate piece is further widened toward the upper portion. A girder with a tenon for architectural use, wherein a side edge of the support portion is inclined.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an example of a beam receiving fitting with a tenon for construction of the present invention, and FIG. 2 is a development view of an example of the beam receiving fitting of the present invention shown in FIG. In the drawing, reference numeral 1 denotes a beam receiving bracket.

As shown in FIG. 1, the beam receiving bracket 1 of the present invention comprises a tenon portion 2 and two side plate pieces 3, 3 of which the rear end is partially connected by the tenon portion 2. .

The upper edge of the side plate 3 is obliquely inclined forward and downward along the front end from the rear end of the side plate 3, and the side plate 3 has a notch cut out downward from the upper edge thereof. The support part 4 is formed. The upper part of the notch support part 4 is an open fixture engaging part 4a, and the lower part is a fixture engaging end 4b. The engaging part side edge of the front part of the side plate piece 3 of the fastener engaging part 4a is engaged. The entrance 4a (that is, the notch support 4) is inclined so as to become wider toward the opening. Further, at least one fixture engagement hole 5 is provided in the side plate piece 3 (in the example shown in FIG. 1, two fixture engagement holes 5 are provided).

The tenon portion 2 connecting the two side plate pieces 3 has a box-like shape such as a hollow cubic or rectangular parallelepiped with an open front surface, and has a vertically long fixture in the center of the rear surface. An insertion hole 6 is provided.

The beam receiving fitting 1 of the present invention can be obtained by cutting a flat metal plate, for example, as shown in FIG.

Next, means for attaching a beam to a column using the beam receiving fitting 1 of the present invention will be described. FIG. 3 shows the beam receiving bracket 1 of the present invention.
FIG. 4 is a perspective view illustrating a means for attaching a beam to a column using the present invention. FIG. 4 is a perspective view showing a state where three beams are attached to one column using the beam receiving fitting 1 of the present invention. is there. In addition, the beam receiving fitting 1 seen through in FIG. 4, a fixing tool 14 for fixing the fitting 1 to the column 7, and a fixing tool 13 for fixing the beam 8 to the fitting 1.
Are represented by solid lines, and the columns 7 and the beams 8 are represented by two-dot chain lines.

In order to mount the beam 8 on the column 7 using the beam receiving fitting 1 of the present invention, as shown in FIG. And fixture 14
Is formed in the communication hole 10 through which the hole is inserted. On the other hand, at the end of the beam 8, the cut groove 11 is formed at an interval equal to the two side plate pieces 3, 3 constituting the metal fitting 1 (the inner width W ₁ of the side plate pieces 3, the inner width W of the cut grooves 11, 11). _{interval 2} and are identical or spacing and matches the outer width W ₁ 'outer width W ₂ of the cut recess 11, 11' of the side plate pieces 3,3.) two at providing. Further, a locking end 4 at the lower end of the notch support portion 4 provided on the metal fitting 1 is provided at the end.
b, and fixture fitting holes 12b, 12b corresponding to the fixture fitting holes 5, 5, respectively.
A rod-shaped fixture 13 such as a drift pin is fitted in the fixture insertion hole 12a corresponding to the locking end 4b. It is preferable that the diameter of the fitting holes 12a, 12b, 12b is slightly smaller than the diameter of the fixture 13 so that the fitted fixture 13 does not easily come out after the fitting.

The beam receiving fitting 1 of the present invention is constructed such that the mortise 2 of the fitting 1 is first fitted into the mortise 9 of the pillar 7 and the beam 8 which have been processed as described above. 7 is fixed to the pillar 7 by a fixing hole 14 inserted through a communication hole 10 formed in the mortar 7 and a fixing hole 6 provided in the center of the rear surface of the tenon 2. At this time, the mortise 2 is formed in a box shape, and when the mortise 2 is fitted to the mortise 9, the entire bottom surface of the mortise 2 comes into contact with the bottom of the mortise 9. Even if a load is applied to the fixed metal fitting 1, the tenon part 2 does not sink into the wood. As the fixing device 14, for example, a hexagonal hole,
It is preferably a bolt 14 having a disk-shaped head provided with a − groove or a + groove.

Two beams 8, 8 are provided on opposite sides of one pillar.
As shown in FIG. 4, the two beam receiving brackets 1 and 1 are fixed by one fixing tool 14. However, when the bolt 14 as in the above example is used as the fixing tool 14, Since the bolt 14 can be tightened to the nut 14a with a wrench or a screwdriver, there is no need to make the interval between the side plates 3, 3 of the metal fitting 1 wide, and even if the interval between the side plates 3, 3 is narrow, the bolt 14 and the nut can be easily attached. 14a. Further, the width of the inside of the tenon portion 2 of the metal fitting 1 (equivalent to the interval between the two side plate pieces 3 and 3) is set to substantially match the distance between two opposite sides of the hexagon nut 14a conforming to the JIS standard. If the nut 14a is held so as not to rotate inside the tenon part 2, it is not necessary to hold the hexagon nut 14a using a tool such as a spanner at the time of fastening, so that the bolt 14 and the nut 14a are fastened. Can be performed more easily.

If the vertically long insertion hole 6 provided in the tenon portion 2 is provided with a length twice as large as the diameter of the bolt 14, the two beams 8, 8 can be formed into one pillar as shown in FIG. The bolts 14 can be crossed alternately even when the beam receiving fittings 1 and 1 are fixed to the surface adjacent to the column 7 to mount the metal fitting 1 at right angles to the column 7. It can be similarly fixed in the same position. Therefore, as described below, using the same metal fitting 1, the beams 8, 8 that have been subjected to the same processing can be mounted on the columns 7 so that the upper surface positions thereof coincide with each other.

After the beam receiving fitting 1 is fixed to the column 7 as described above, the beam 8 is dropped so that the side plate pieces 3 are inserted into the cut grooves 11 provided at the end of the beam 8. Fixture 13 previously fitted in fixture fitting hole 12a of beam 8
Is engaged with the engaging portion 4a of the metal fitting 1 and locked by the locking end 4b, so that the metal fitting 1 supports the beam 8. After that, the fitting hole 1
The beams 8 are mounted on the columns 7 by fitting the fixtures 13 into the engagement holes 5 provided in the metal fittings 2b and 12b. At this time, since the cut grooves 11, 11 are provided at the same interval as the two side plate pieces 3, 3 constituting the metal fitting 1, even when the cut width of the cut groove 11 is wider than the thickness of the side plate piece 3, The beam 8 is securely fixed to the pillar without moving in the left-right direction.

Further, since the side plate pieces 3, 3 are covered with wood (beams 8), particularly when the rod-shaped fixing tool such as the drift pin described above is used as the fixing tool 13, the side plate pieces 3, 3 are attached to the surface after mounting. The metal fitting 1 and the fixing tool 13 are not exposed or protruded, so that the metal fitting 1 and the fixing tool 13 do not disturb other construction work performed after the beam is mounted on the pillar. Further, when the metal fitting is exposed on the surface, the exposed portion must be covered with a coating material in accordance with the provisions of the Fire Service Law. However, the use of the present invention eliminates such extra work. It is preferable that the fixing member 13 for fixing the beam 8 to the metal fitting 1 use a rod-shaped member such as a drift pin as described above.
Ordinary bolts can also be used.

When the beam 8 is mounted on the column 7 as described above, since the upper edge of the side plate 3 is obliquely inclined, the side plate 3 is inserted into the cut groove 11 provided on the beam 8 side. Easy to do. That is, even if the beam 8 is dropped obliquely in the horizontal direction with respect to the side plate piece 3, if the upper edge is skewed, a part of the upper edge is cut into the lower surface corner of the beam 8 end of the notch groove 11. When a part of the upper edge is inserted into the lower surface corner of the beam 8 at the notch groove 11, the side plate 3 serves as a guide and is positioned parallel to the side plate 3. Are dropped, and the side plate pieces 3 are notched grooves 1
1. If the upper edge is not skewed, the side plate pieces 3 are hard to be inserted into the notch grooves 11 unless the side plate pieces 3 and the notch grooves 11 coincide with the horizontal position on the same axis.

Further, the side edge of the engagement portion 4a above the notch support portion 4 on the front end side of the side plate 3 is inclined so that the engagement portion 4a, that is, the notch support portion 4 becomes wider toward the opening. Since the fixing member 13 previously fitted to the beam 8 is easily engaged with the engaging portion 4, the fixing member 13 slides on its slope to reach the locking end 4 below the notch supporting portion 4, so that it can be easily formed. Moreover, the beam 8 can be reliably supported by the metal fitting 1.
Further, since the mounting position of the beam 8 is determined by the end position of the locking end 4 below the notch support portion 4 and the fitting position of the fixture 13 previously fitted, the notch support portion 4 is provided at the same position. By using the metal fitting 1 and setting the positions of the fixing fitting insertion holes 12a for fitting the fixing tools 13 provided in the beam 8 in the various beams, even after using the beam having uneven end dimensions, The upper surface positions of the beams can be matched.

When the beam receiving fitting 1 of the present invention is used, if the above-described processing to be applied to the column 7 and the beam 8 is performed in advance with high precision by machining, the present invention fitting 1 is simply used at the construction site.
The beam 8 can be mounted on the column 7 only by performing the operation of attaching the beam 8 to the bracket 7 and the operation of simply fixing the beam 8 to the metal fitting 1.
Therefore, accurate construction can be performed reliably and easily.

In the present invention, the size of the side plate 3 can be determined according to the size and weight of the beam 8 to be mounted, as shown in FIG. At this time, the number of the tenon parts 2 is not limited to one according to the size of the side plate piece 3 but is two.
More than one can be provided. Several kinds of metal fittings 1
Is prepared, beams of various dimensions can be similarly mounted on the pillars under the same working process. Note that, in the present invention, the upper end edge of the side plate piece 3 may be inclined backward from the front end side to the rear end side of the side plate piece 3, and although not particularly illustrated and described, It can also be used to connect small beams to girders.

[0023]

[Effects of the Invention] As described above, the beam receiving bracket with a tenon for construction of the present invention locks the fixing member from above in the notch support portion formed on the side plate and having an open upper portion, and connects the beam to the metal fitting. Even if the dimensions of the beam end vary,
The beam can be mounted on the column such that the top surface of the beam is at a certain height. In addition, since the tenon portion is fitted into the tenon hole formed on the column side, the fixing strength is improved as compared with the fixing using only the fixing tool. Furthermore, the mounting work can be performed more accurately and more easily than in the case where the conventional metal fittings are used. Especially, since the upper edge of the side plate is inclined, it can be easily inserted into the beam. It is. Therefore, the construction work can be simplified.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a tenon beam fitting with a tenon according to the present invention;

FIG. 2 is an exploded view of an example of the beam receiving fitting with a tenon according to the present invention shown in FIG. 1;

FIG. 3 is a perspective view for explaining a means for attaching a beam to a column using the tenon beam receiving fitting for construction according to the present invention.

FIG. 4 is a perspective view showing a state in which three beams are mounted on one pillar using the tenon beam receiving fitting for architectural construction of the present invention.

[Explanation of symbols]

 Reference Signs List 1 beam receiving bracket 2 tenon part 3 side plate piece 4 notch support part

Claims (1)

(57) [Scope of request for utility model registration] An upper end edge is formed of two side plate pieces inclined obliquely, and a tenon portion protruding rearward.
A portion excluding a tenon portion is open between the side plate pieces, a cutout support portion having an open top is formed in the side plate piece, and the side plate is further widened toward the upper portion. A tenon with a tenon for construction, wherein a side edge of a notch support portion on a front end side of a piece is inclined.