JP2015209696A - Suspension metal fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suspension metal fitting for a building, being high in earthquake resistance, and capable of coping with C-shaped steel of various sizes.SOLUTION: A suspension metal fitting 1 for joining C-shaped steel 100 and a suspension bolt comprises a fixed member 3 and a movable member 4 fitted to the inside of the fixed member 3 and sliding on the inside, and the respective members comprise locking parts 35, 36, 47 and 48, and these locking parts join the C-shaped steel 100 and the suspension bolt by respectively locking on lip parts 102 and 103 of both side end parts of the C-shaped steel 100. The suspension metal fitting 1 is high in earthquake resistance and can firmly join the C-shaped steel and the suspension bolt since locking parts are locked on upper-lower lip parts by using the four locking parts.

Description

  The present invention relates to a hanging fitting that joins a C-shaped steel called a purlin (haya) used in a building such as a gymnasium, a factory, a convenience store, a house and a suspension bolt.

Conventionally, the ceiling of a building is supported by C-shaped steel attached under the roof or under the floor of an upper floor. For example, FIG. 5 is a cross-sectional view of a conventional gymnasium illustrating a ceiling structure between a roof and a decorative panel on the ceiling.
A plurality of C-shaped steels 100 are fixed to the attic on the roof. A plurality of hangers are fixed to the back of the ceiling, and each hanger fixes one end of the suspension bolt 101. The other end of the suspension bolt 101 is fixed to the suspension fitting 110, and the suspension fitting 110 fixed to the suspension bolt 101 is locked to one of the lip portions at both ends of the C-shaped steel 100.
FIG. 6 is an example of a conventional hanging metal fitting. In this example, the hanging metal fitting 110 is made of a plate-like body, has an L-shaped cross section, and is further bent at the top end portion. Then, the bent tip portion is engaged with one of the lip portions 102 and 103 of the C-shaped steel 100 to connect the C-shaped steel 100 and the suspension bolt 101.

  Non-Patent Document 1 discloses the same type as the conventional hanging metal fitting shown in FIG. 6 (see page 9).

"Steel base material special hardware general catalog" Noge Seisakusho Co., Ltd. issued in October 2011

For example, as shown in FIG. 6, the conventional hanging metal fittings, including those described in Non-Patent Document 1, are engaged with one of the lip portions 102 at both ends of the C-shaped steel, Are combined.
However, due to the recent seismic activity, there is a problem that the earthquake resistance of any building must be strengthened.
The conventional hanging metal fitting 110 shown in FIG. 6 is fixed to the C-shaped steel by locking a locking portion (bent tip portion) to one of the lip portions of the C-shaped steel. However, when this building is shaken by an earthquake, there is only one joint between the C-shaped steel and the suspension bracket, so the joint between the two is easily broken. For example, if an up-and-down vibration earthquake comes, the locking part will come off from the lip part, and if a roll earthquake in the long direction of C-shaped steel comes, the locking part will move on the lip part. In a rolling earthquake from a direction perpendicular to the scale direction, the hanging hardware can be easily removed.
This invention is made | formed by such a situation, has high earthquake resistance, and also provides the hanging bracket for buildings which can respond to C-shaped steel of various sizes.

  One aspect of the hanging metal fitting of the present invention is a hanging metal fitting that has a locking portion that combines a C-shaped steel used for a building and a hanging bolt, and the C-shaped steel has a C-shaped cross section. The locking portions are respectively locked to lip portions at both end portions of the C-shaped steel, and the C-shaped steel and the suspension bolt are coupled to each other.

Moreover, the aspect of the hanging metal fitting of the present invention is the hanging metal fitting according to claim 1, wherein the hanging metal fitting is a fixed member, a movable member that is fitted inside the fixed member, and slides inside the fixed member. The fixing member is formed of a plate-like body, and the plate-like body includes a flat portion, and first and second bent portions formed by bending both side end portions of the plate-like body. The bottom part formed by bending one end adjacent to the both side end parts of the plate-like body and the bottom part side end of the both side end parts are respectively locked to the lip part of the C-shaped steel. And a second locking portion, and a screw hole into which the screw-like one end of the suspension bolt is screwed is formed in the bottom portion, and the first and second bent portions are opposed to each other. Has a pair of protrusions, the movable member is composed of a plate-like body, and the plate-like body of the movable member is a plane portion and the plate-like body. And first and second bent portions formed by bending both side edge portions,
One end of the movable member adjacent to both side edges of the plate-like body is partially cut out and partly bent to form a bolt receiving portion, and both sides of the plate-like body of the movable member are formed. A pair of opposed groove-shaped portions are formed at one end where the bolt receiving portion of the end portion is formed, and lip portions of the C-shaped steel are respectively provided at the other ends of the both ends of the plate-like body of the movable member. A third engaging portion and a fourth engaging portion that are engaged with each other, the protrusions are respectively fitted into the pair of groove-shaped portions, and the protrusion moves along the groove portions, whereby the movable member is The inside of the fixing member is configured to slide.

  The hanging bracket of the present invention can increase the earthquake resistance. Furthermore, since the movable member is configured to slide inside the fixed member, it is possible to change the length of the hanging bracket and to cope with various sizes of C-shaped steel.

The perspective view of the hanging metal fitting attached to C-shape steel which concerns on Example 1. FIG. The side view of the hanging metal fitting attached to C-shaped steel which concerns on Example 1. FIG. The perspective view (a) of the fixing member which concerns on Example 1, a side view (b), and a bottom view (c). The perspective view (a) of the movable member which concerns on Example 1, and a side view (b). Sectional drawing of the building (gymnasium) in which the conventional hanging bracket was used. The perspective view of the conventional hanging metal fitting attached to C-shaped steel.

  Embodiments of the invention will be described with reference to examples.

Embodiment 1 will be described with reference to FIGS.
As shown in FIGS. 1 and 2, the hanging bracket of this embodiment is composed of a fixed member 3 and a movable member 4, and one end of a suspension bolt (not shown) is inserted into a screw hole 37 formed in the fixed member 3. Is fixed by screwing, and the C-shaped steel 100 and the suspension bolt are coupled.

  As shown in FIG. 3, the fixing member 3 is composed of a plate-like body using a steel material or the like. This plate-like body is formed by bending one end adjacent to the flat portion 31, first and second bent portions 32, 33 formed by bending both side end portions thereof, and both side end portions. A bottom portion 34 and first and second locking portions 35 and 36 that are locked to the lip portion of the C-shaped steel are provided at the ends of the both side end portions on the bottom portion 34 side. A screw hole 37 into which a screw-like one end of a suspension bolt is screwed is formed in the bottom 34, and a pair of protrusions 38, 39 are formed on the mutually opposing surfaces of the first and second bent portions 32, 33. Is formed.

  The first and second locking portions 35 and 36 that lock to the lip portions of the C-shaped steel formed at the bottom 34 side ends of the first and second bent portions 32 and 33 are shown in FIG. As described in b), it is cut out into a trapezoidal cross section in which one is substantially vertical and the other is inclined. Thus, the opening part of this notch part is made wide so that a latching part may be easily latched to the lip | rip part of C-shaped steel.

  As shown in FIG. 4, the movable member 4 is composed of a plate-like body using a steel material or the like. The plate-like body constituting the movable member 4 includes a flat portion 41 and first and second bent portions 42 and 43 formed by bending both side end portions thereof, and the plate constituting the movable member 4. One end adjacent to both end portions of the shaped body is partially cut out (notched portion 49), and a part thereof is bent to form a bolt receiving portion 44. A pair of opposed groove portions 45 and 46 are formed at one end where the bolt receiving portions 44 of the first and second bent portions 42 and 43 are formed, and C-shaped steel lips are respectively formed at the other ends. 3rd and 4th latching | locking parts 47 and 48 latched to a part are formed.

  FIG. 4B shows the third and fourth locking portions 47 and 48 that are locked to the C-shaped steel lip portions formed at the other ends of the first and second bent portions 42 and 43, respectively. As described, it is cut out into a trapezoidal cross section, one of which is substantially vertical and the other is inclined. The reason why the opening portion of the notch portion is thus wide is to make it easy for the locking portion to be locked to the lip portion of the C-shaped steel.

The protrusions 38 and 39 formed on the bent portions 32 and 33 of the fixed member 3 are fitted to the long groove-like portions 45 and 46 formed on the bent portions 42 and 43 of the movable member 4 so as to be movable. When the member 4 is housed in the fixed member 3 so that the planar portions 31 and 41 are stacked, the projecting portions 38 and 39 move in the groove-like portions 45 and 46, so that the movable member 4 is moved into the fixed member 3. Slide. At this time, the bent portion 42 of the movable member 4 moves in the gap between the bottom portion 34 of the fixed member 3 and the bent portion 32, and the bent portion 43 of the movable member 4 is bent with the bottom portion 34 of the fixed member 3. The gap with the part 33 is moved.

As described above, the suspension metal fitting is composed of the fixed member and the movable member, and the movable member moves in the fixed member, so that the length thereof can be changed. The length of the hanging bracket corresponds to the length between the locking portions 35 and 36 and the locking portions 47 and 48.
Therefore, the hanging bracket of this embodiment can be adapted to various sizes of C-shaped steel.

  In order to connect the C-shaped steel and the suspension bolt using the hanging metal fitting 1, as shown in FIG. 1, the locking portion provided on the fixing member 3 is fitted into the lip 103 at the lower part of the C-shaped steel 100. The engaging portion provided on the movable member 4 is fitted into the upper lip portion 102. Then, although not shown, the suspension bolt inserts one end having a screw into the screw hole 37 at the bottom of the fixing member 3 to connect the two. At this time, the bolt receiving portion 44 provided on the movable member 4 receives the suspension bolt, slides the movable member 4 by the action of the screw, and tightens the upper locking portions 47 and 48 to the C-shaped steel 100. .

  As described above, the hanging metal fitting of this embodiment uses four locking portions, and the locking portions are locked to the upper and lower lip portions. Therefore, the earthquake resistance is high, and the C-shaped steel and the suspension bolt can be firmly bonded.

DESCRIPTION OF SYMBOLS 1 ... Suspension metal fitting 3 ... Fixed member 4 ... Movable member 31 ... Planar part 32 of fixed member ... 1st bending part 33 of fixed member ... 2nd of fixed member Bending part 34 ... bottom part 35 of the fixing member ... first locking part 36 ... second locking part 37 ... screw holes 38, 39 on the bottom part ... projection part of the fixing member 41... Flat portion 42 of the movable member 42... The first bent portion 43 of the movable member... The second bent portion 44 of the movable member. Groove-shaped part 47 of the movable member ... 3rd latching | locking part 48 ... 4th latching | locking part 49 ... Notch part 100 ... C-section steel 101 ... Suspension bolt 102,103 ... C-shaped steel lip part 110 ... Conventional suspension fitting

Claims (2)

In the hanging metal fitting which joins the C-shaped steel used for the ceiling structure of a building and a suspension bolt, and has a locking part, the C-shaped steel has a C-shaped cross section. A suspension metal fitting, wherein the C-shape steel and the suspension bolt are coupled to each other by engaging with lip portions at both end portions of the C-shape steel. 2. The hanging metal fitting according to claim 1, wherein the hanging metal fitting includes a fixed member and a movable member fitted inside the fixed member and sliding inside the fixed member, and the fixed member is a plate-like body. The plate-like body includes a flat portion, first and second bent portions formed by bending both side end portions of the plate-like body, and both side end portions of the plate-like body. A bottom portion formed by bending one adjacent end, and first and second engaging portions that are respectively engaged with the lip portions of the C-shaped steel at the bottom side ends of the both side end portions; A screw hole into which a screw-like one end of the suspension bolt is screwed is formed at the bottom, and the first and second bent portions have a pair of protrusions on opposite surfaces, and the movable The member is composed of a plate-like body, and the plate-like body of the movable member is formed by bending a flat portion and both side end portions of the plate-like body. One end of the movable member adjacent to both side ends of the plate-like body is partially cut out, and a part thereof is bent to form a bolt receiving portion, A pair of opposed groove-shaped portions are formed at one end where the bolt receiving portions are formed at both ends of the plate-like body of the movable member, and at the other ends of the both ends of the plate-like body of the movable member, Third and fourth locking portions are formed to be locked to the lip portion of the C-shaped steel, respectively, and the protruding portions are fitted into the pair of groove-shaped portions, respectively, and the protruding portions move through the groove portions. By doing so, the movable member is configured to slide inside the fixed member.

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