JP3038481U - Hanger for grid member of system ceiling - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] A system ceiling capable of easily and safely performing a grid member mounting operation, shifting the mounting position of the grid member in the longitudinal direction, and having a simple structure and being manufactured at low cost. To provide a hanger for a grid member. SOLUTION: Both ends of a metal plate are bent into a substantially U shape,
The hanger 1 is formed by forming a hanging bolt fitting portion 3 composed of a hole or a notch-shaped groove in the central portion 2 and forming inverted claw-like folded-back portions 5 and 5 at the ends of the bent portions 4 and 4. Configure. In this hanger 1, the tip ends of the bent portions 4, 4 are pressed against the bulged upper side 62 of the grid member 61,
By engaging the folded-back portions 5 and 5 with the lower edge portion of the upper side 62, the folding member 5 can be attached to the grid member 61, and the hanging bolt 35 is inserted into the hanging bolt fitting portion 3 and the nut 36 is engaged. By this, it can be attached to the hanging bolt 35.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a hanger for a grid member of a system ceiling in which a ceiling plate is constructed by a grid method.

[0002]

[Prior art]

 In buildings such as office buildings and public facilities, system ceilings in which ceiling plates, lighting fixtures, air-conditioning equipment, etc. are integrally attached to grid members suspended in a grid from ceiling slabs are widely constructed.

As the above-mentioned ceiling board, an inorganic fiber board, a gypsum board, and a metal-based ceiling board are generally adopted, including conventional construction methods, but their heat insulation, sound absorption, and flame retardancy are used. Inorganic fiber boards that are surface-decorated by applying a skin material to the board obtained by compressing a mat of inorganic fibers such as glass wool or rock wool, or painting the surface are often used. There is.

The construction of the system ceiling is carried out by mounting grid members in a grid pattern while supporting grid members on bolts suspended from the ceiling slab at predetermined intervals to form a frame, and further mounting the ceiling plate on the frame. This is done by installing lighting equipment and air conditioning equipment, and this construction method is called the grid construction method.

FIG. 7 shows a conventional hanger for supporting a grid member on a bolt suspended from a ceiling slab, and FIG. 8 uses this hanger to suspend and support a grid member. The status is shown.

As shown in FIG. 7, in a conventional hanger 21, both sides of a main body 22 made of a metal plate are bent to form reinforcing ribs 23, and the upper portion is bent horizontally to form a bent portion 24. A suspension bolt mounting hole 25 is formed in the portion 24, the lower end 26 of the main body 22 is bent in a U shape when viewed from the side, and a holding plate 27 whose lower end is also bent in a U shape is formed in the main body. It is configured by being attached to 22 with a bolt 28. The lower end portion 26 of the main body 22 and the lower end portion of the presser plate 27 are shaped so that the U-shaped bent portions when viewed from the side face each other and sandwich the upper side of the grid member from both sides. ing.

As shown in FIG. 8, the grid member 31 has a rectangular column-shaped upper side 32, a plate-shaped intermediate portion 33, and a lower edge portion extending in a T-shape with respect to the intermediate portion 33. And a ceiling plate support portion 34. Then, the hanger 21 inserts the hanging bolt 35 hanging from the ceiling slab into the hanging bolt mounting hole 25 of the bent portion 24, and tightens the nut 36 from above and below the bent portion 24 to attach the hanging bolt 35 to the hanging bolt 35. It is supported. Further, the upper side 32 of the grid member 31 is inserted between the lower end portion 26 of the main body 22 and the lower end portion of the holding plate 27, and the bolt 28 is tightened, so that the upper side 32 is fixed to the lower end portion 26 of the main body 22 and the holding plate. The grid member 31 is supported by gripping with 27. The hanging bolt 35 is joined to the ceiling slab by a joining tool (not shown).

When the grid member 31 is mounted using the hanger 21, the hanging bolts 35 are first mounted at predetermined positions on the ceiling slab at predetermined intervals, and then the hanger 21 is mounted on the lower end of the hanging bolt 35. Finally, the grid member 31 is fixed to the hanger 21 and assembled in a lattice shape.

On the other hand, as a grid member for the system ceiling, there is also known a grid member having a general-purpose hole which can be used for hanging or the like on its bulged upper side. Japanese Utility Model Registration No. 3016244 by the present applicant proposes a hanger that is suspended by using the above-mentioned general purpose hole.

As shown in FIG. 9, in the hanger 51 described in the above Utility Model Registration No. 3016244, an upper portion of a main body 52 made of a metal plate is bent in the horizontal direction, and a cut portion is formed in the bent portion 53. A hanging bolt fitting portion 54 formed of a groove is formed, and both sides of the opening of the hanging bolt fitting portion 54 are bent downward to form a hanging bolt disengagement prevention portion 55. The member suspending portion 56 is bent into a hook shape so that it can be inserted into the general-purpose holes of the grid member.

As shown in FIG. 10, the grid member 41 to which the hanger 51 is applied has an upper side 42 that is bulged in a prismatic shape, a plate-shaped intermediate portion 43, and a lower edge portion thereof as an intermediate portion 43. On the other hand, it has a shape having a ceiling plate support portion 44 extending in a T shape, and general-purpose holes 45 are formed at predetermined intervals in the upper side 42 that is enclosed.

In attaching the grid member 41, first, the member suspending portion 56 at the lower end of the hanger 51 is inserted into the hole 45 at the upper side of the grid member 41, and the member suspending portion 56 is attached as necessary. The hanger 51 is attached to the grid member 41 by caulking.

Next, the grid member 41 to which the hanger 51 is attached is lifted up, and the portion between the upper and lower nuts 36, 36 of the suspension bolt 35 suspended from the ceiling slab at a predetermined interval is attached to the suspension bolt fitting portion 54 of the hanger 51. And the lower nut 36 is engaged with the bent portion 53 forming the peripheral edge of the hanging bolt fitting portion 54 of the hanger 51, so that the hanger 51 is supported by the hanging bolt 35.

[0014]

[Problems to be solved by the device]

 However, the hanger shown in FIG. 7 requires two parts consisting of the main body 22 and the holding plate 27, and these parts must be screwed together with the bolts 28, so the manufacturing cost of the hanger itself is high. Therefore, there was a problem that construction work took time and effort.

On the other hand, the hanger shown in FIG. 9 can be applied only to the grid member having the general-purpose hole on the bulged upper side, and the mounting position of the hanger is the general-purpose hole provided on the bulged upper side. However, there is a problem in that it cannot be moved to a desired position in the longitudinal direction of the grid member.

Further, in the conventional hanger shown in FIGS. 7 and 9, there is a problem in that both hands must be used when finally mounting the grid member at a high place on the scaffold, which is a work-related risk. It was

Therefore, the object of the present invention can be applied without a general-purpose hole on the upper side of the grid member, and the grid member can be easily attached with one hand, and as a result, the work on the scaffold is safe. The system ceiling grid is fast and quick, the hanger mounting position can be easily shifted to any position in the longitudinal direction of the grid member, and it can be manufactured at a low cost with a relatively simple structure. It is to provide a hanger for members.

[0018]

[Means for Solving the Problems]

 In order to achieve the above object, the first of the present invention is a system having a bulged upper side. In a hanger applied to a grid member of a ceiling, both ends of a metal plate are bent into a substantially U shape, and the metal plate A suspension bolt fitting portion consisting of a hole or a notched groove is formed in the central portion, and inverted claw-shaped folded-back portions that are folded back inward are formed at the ends of the bent portions at both ends of the metal plate. The gap between the folded-back portions is narrower than the thickness of the upper side of the grid member to provide a hanger for the grid member of the system ceiling.

In a second aspect of the present invention, in the first aspect of the present invention, the hanging bolt fitting portion is formed by a groove having a notch shape, and the hanging bolt is prevented from coming off on both sides of the opening. The present invention provides a hanger for a grid member of a system ceiling in which parts are formed.

A third aspect of the present invention is the suspension device according to the first or second aspect, wherein the hanging bolt fitting portion is formed of a notched groove, and the inside diameter of the opening is slightly smaller than the outer diameter of the hanging bolt. The present invention provides a hanger for a grid member of a system ceiling in which a width portion is formed.

[0021] A fourth aspect of the present invention is the system ceiling according to any one of the first to third aspects, wherein the both-end bent portions are formed such that a space between base portions thereof is wider than a space between distal ends thereof. A hanger for a grid member is provided.

A fifth aspect of the present invention is the system ceiling according to any one of the first to fourth aspects, wherein the both-end bent portions are formed to extend substantially parallel to each other at least at their tip portions. A hanger for a grid member is provided.

According to the first aspect of the present invention, when the folded portions at the ends of the folded portions at both ends of the hanger are pressed against the bulged upper side of the grid member from above, the folded portions at both ends elastically open and the folded portions are Ride over the inflated upper side and engage the lower edge of the inflated upper side. In this way, the hanger can be attached to the grid member by simply pressing the ends of the bent parts on both sides of the hanger against the upper side of the grid member and fitting them together. Work at high altitudes can be performed safely. It can also be applied to ordinary hangers that do not have general-purpose holes on the top side.

In addition, since the hanger can be moved in the longitudinal direction of the grid member relative to each other with the folded-back portions of both ends of the hanger fitted to the bulged upper side of the grid member, the grid can be moved relatively. It is easy to correct the mounting position when assembling the members. Furthermore, since it can be manufactured by simply cutting one metal plate into a predetermined shape and bending it with a press or the like, it is possible to improve the production efficiency and reduce the manufacturing cost.

According to the second aspect of the present invention, the hanging bolt fitting portion is formed by a notch-shaped groove, and the hanging bolt disengagement preventing portion formed by bending downward is formed on both sides of the opening. , The hanging bolt can be engaged with and supported by the hanging bolt only by inserting the hanging bolt into the notched groove and engaging the nut previously screwed to the hanging bolt with the peripheral edge of the groove of the hanger. Further, in this state, the nut engages with the suspension bolt disengagement prevention portion, so that the suspension bolt can be prevented from coming off the groove.

According to the third aspect of the present invention, since the hanging bolt fitting portion is formed of a notch-shaped groove, and a portion having a width slightly smaller than the outer diameter of the hanging bolt is formed on the inner circumference of the opening, the hanging bolt is formed. By forcibly pushing into the inside of the groove and inserting it, it is possible to prevent the hanging bolt from coming off at the portion where the groove width is narrow.

According to the fourth aspect of the present invention, since the interval between the bases of the bent portions at both ends of the hanger is wider than the interval between the distal ends, the hanging bolt is inserted into the hanging bolt fitting portion. After engaging the nut screwed to the hanger with the hanger and then turning the nut to adjust the height, it becomes easier to insert a spanner or the like inside the hanger.

According to the fifth aspect of the present invention, since at least the tip end portions of the bent portions at both ends of the hanger are formed so as to extend substantially in a horizontal direction, the folded-back portions at the tip ends of the bent portions at both ends of the grid member can be formed. When engaged with the lower edge portion of the upper side, the bent portions at both ends easily come into contact with the side surface of the upper side of the grid member, and the grid member can be held without rattling.

[0029]

[Embodiment of the invention]

 1 to 3 show an embodiment of a hanger for a grid member on a system ceiling according to the present invention. FIG. 1 is a perspective view of the hanger, and FIG. 2 is a side view of the hanger in which the grid member is suspended and supported. FIG. 3 and FIG. 3 are perspective views showing a state in which the grid member is suspended and supported by the same hanger.

The hanger 1 is made by punching or cutting a metal plate into a predetermined shape and bending it into a generally U-shape. As the metal plate, one having a spring property, for example, spring steel, stainless steel or the like is preferable, and a spring steel having a thickness of about 0.2 to 1 mm is particularly preferable in terms of spring property, strength, workability and cost.

In the case of this embodiment, a hanging bolt fitting portion 3 formed of a groove having a cut shape is formed on the central portion 2, that is, the upper surface of the hanger 1. However, the hanging bolt fitting portion 3 may be a hole such as a circle or an oval.

Further, the both-end bent portions 4 and 4 of the hanger 1 are bent downward from both ends of the central portion 2 and extend in parallel with each other, and then are bent in a step-like manner so as to narrow a space between them. From there, it extends again in parallel downward, and the tips of each are bent inward to form inverted claw-shaped folded-back portions 5, 5, which are elastically arranged at the lower part of the upper side of the grid member. It is designed to engage.

It should be noted that the distance X between the tip portions of the folded-back portions 5 and 5 is set such that the folded-back portions 5 and 5 elastically engage with the lower portion of the upper side of the grid member so that the upper side of the ridge of the grid member to be applied is. It should be narrower than the thickness. Further, it is preferable that the width of the lower end portions of the both-end bent portions 4 and 4, that is, the interval Y between the corner portions of the folded portions 5 and 5 is slightly larger than the thickness of the upper side of the grid member. The reason is that when the lower end portions of the both-end bent portions 4, 4 of the hanger 1 are pressed against the upper side of the grid member, the corners of the upper side of the grid member come into contact with the tapered surfaces of the folded-back portions 5, 5, and the both-end bent portions are bent. 4 and 4 open smoothly to make it easier to insert the upper side of the grid member, and when the folded-back portions 5 and 5 cross over the upper side of the grid member, elastically engage with the lower edge of the upper side of the grid member. To do so.

As shown in FIGS. 2 and 3, the grid member 61 to which the hanger 1 is applied has an upper side 62 that is swelled in a prismatic shape, an intermediate portion 63 that hangs from the center of the lower surface of this upper side, and this intermediate portion 63. And a ceiling plate support portion 64 formed by extending a lower edge portion in a T shape. The grid member 61 to which the hanger 1 of the present invention is applied may or may not have a general-purpose hole on the upper side 62 thereof.

The suspension bolts 35 are attached to a ceiling slab (not shown) in a suspended state at predetermined intervals. Two nuts 36 are screwed to the suspension bolt 35 at a predetermined height with a predetermined gap.

Next, a method of suspending and supporting the grid member 61 using the hanger 1 will be described.

First, the portion between the two nuts 36 of the suspension bolt 35 previously attached to the ceiling slab is inserted into the suspension bolt fitting portion 3 of the central portion 2 of the hanger 1, and the lower nut 36 is suspended. The lower surface of the peripheral edge portion of the bolt fitting portion 3 is engaged. In that state, one of the two nuts 36 is tightened, and the center part 2 of the hanger 1 is sandwiched between the two nuts 36 and fixed.

After the hanger 1 is attached to each of the hanging bolts 35 in this manner, the grid member 61 is assembled in advance in a predetermined frame shape on the floor surface if necessary, and the grid member 61 is lifted upward to lift the hanger. 1. At this time, the operator rides on the scaffold with only the grid member 61 in his hand and pushes the upper side 62 of the grid member 61 into the gap between the folded-back portions 5 and 5 of the both-end bent portions 4 and 4 of the hanger 1. Good.

As a result, the upper side 62 of the grid member 61 hits the tapered surfaces of the folded-back portions 5, 5, the both-end bent portions 4, 4 are opened smoothly, and the upper side 62 of the grid member 61 is inserted, and the folded-back portion 5 5 rides over the upper side 62 of the grid member 61 and elastically engages with the lower edge of the upper side 62 1.

In this way, the grid member 61 can be attached to the hanger 1 simply by pushing the upper side 62 of the grid member 61 between the folded-back portions 5 and 5 of the hanger 1, so that the work can be easily performed with one touch. It is also possible to carry out the work with one hand while holding only the grid member 61. Further, after the grid member 61 is attached to the hanger 1, the grid member 61 can be displaced in the longitudinal direction thereof, whereby the position of the grid member 61 can be adjusted and the grid member 61 can be easily assembled. it can.

After the grid member 61 is supported by the hanging bolt 35 via the hanger 1 as described above, when it is necessary to adjust the support height of the hanger 1, the lower nut 36 can be rotated. Can be fine-tuned.

Further, as shown in FIG. 3, when the direction of the hanger 1 is alternately changed along the length direction of the grid member 61 by 180 °, the hanger 1 falls off from the hanging bolt 35 due to shaking after the construction. It is difficult to do so, which is preferable.

On the other hand, the hanger 1 is first attached to a predetermined position of the grid member 61, the grid member 61 is lifted, and the hanger 1 is locked to the hanging bolt 35 to suspend the grid member 61. You can also support. In this case, the folded-back portions 5 and 5 of the hanger 1 are pressed against the upper side 62 of the grid member 61, the folded-back portions 5 and 5 are engaged with the lower edge of the upper side 62, and the hanger 1 is moved to the grid member 61. Then, the grid member 61 and the hanger 1 are lifted, the hanging bolt 35 is inserted into the hanging bolt fitting portion 3 of the hanger 1, and the nut 36 is tightened and fixed.

FIG. 4 shows different embodiments of the hanger according to the present invention in which the shape of the hanging bolt fitting portion 3 formed of a cut groove is changed.

In the embodiment shown in FIG. 4A, protrusions 9 are formed inside the open ends of both sides of the hanging bolt fitting portion 3. The distance d1 between the protrusions 9, 9 is smaller than the outer diameter of the hanging bolt 35, but is set to such an extent that the hanging bolt 35 can be manually pushed into the hanging bolt fitting portion 3. That is, when the hanging bolt 35 is pushed in, both sides of the hanging bolt fitting portion 3 expand to the same width as the outer diameter of the hanging bolt due to its elasticity, then return to the original width and hang due to shaking during the construction work. The hanger does not easily come off from the bolt 35.

In the embodiment of FIG. 4B, both side portions of the hanging bolt fitting portion 3 are formed so as to come next to each other toward the opening portion, and the distance d2 between the opening end portions is the same as the above. Although the diameter is smaller than the outer diameter of the bolt 35, the spacing is such that the hanging bolt 35 can be manually pushed into the hanging bolt fitting portion 3.

In the embodiment shown in FIG. 4C, the protrusions 10 and 10 projecting in an arc shape are formed inside the vicinity of the openings on both sides of the hanging bolt fitting portion 3, and the interval d3 thereof is the same as that described above. Although smaller than the outer diameter of the hanging bolt 35, the intervals are set so that the hanging bolt 35 can be manually pushed into the hanging bolt fitting portion 3.

In the embodiment of FIG. 4D, small protrusions 11, 11 protruding in an arc shape are formed inside the openings of both sides of the hanging bolt fitting portion 3, and the interval d4 thereof is the same as that described above. Although the outer diameter of the suspension bolt 35 is smaller than the outer diameter of the suspension bolt 35, the suspension bolt 35 has an interval such that the suspension bolt 35 can be manually pushed into the suspension bolt fitting portion 3.

As described above, when a portion having a width slightly smaller than the outer diameter of the suspension bolt 35 is formed near the opening of the groove, when the grid member 61 is supported by the suspension bolt 35 via the hanger 1, the suspension bolt 35 is suspended. Even if the bolt 35 moves toward the opening of the hanging bolt fitting portion 3 of the hanger 1 and is likely to come off from the hanging bolt fitting portion 3, the hanger 1 is locked in a small width portion, so that the hanger 1 is suspended. It does not fall off 35. Therefore, it is possible to safely suspend and support the grid member 61 on the ceiling and prevent the hanger 1 from coming off the hanging bolt 35 after the construction even if the nut 36 is insufficiently tightened. it can.

FIG. 5 shows still another embodiment of the hanger for the grid member of the system ceiling according to the present invention. The same parts as those of the embodiment shown in FIGS. 1 to 3 are designated by the same reference numerals and the description thereof will be omitted.

The hanger 71 basically has the same structure as the hanger shown in FIGS. 1 to 3, but both side portions of the opening of the hanging bolt fitting portion 3 are bent downward. The difference is that the suspension bolt disengagement prevention portion 12 is formed.

According to this hanger 71, when the hanging bolt is inserted into the hanging bolt fitting portion 3 and the nut screwed to the hanging bolt is engaged with the lower surface of the central portion 2 of the hanger 71, the hanging bolt is lifted. When it is going to come out from the hanging bolt fitting portion 3, the nut screwed to the hanging bolt engages with the hanging bolt disengagement prevention portion 12 to prevent the hanging bolt from coming off. Therefore, there is no risk that the hanging bolt will come off during construction and the grid material will fall.

FIG. 6 shows another embodiment of the hanger for the grid member of the system ceiling according to the present invention. The same parts as those of the embodiment shown in FIGS. 1 to 3 are designated by the same reference numerals and the description thereof will be omitted.

In the hanger 81 of this embodiment, the both end bent portions 6, 6 are bent in a taper shape such that the width gradually narrows downward from both ends of the central portion 2, and the hanger 81 is flat in the vicinity of the lower ends thereof. The folded-back portions 5 and 5 are formed at the lowermost end.

According to the hanger 81, the upper portions of the both-end bent portions 6, 6 are widened to facilitate the nut tightening work, and the lower portion is narrowed to cover the grid member 61. The upper side 62 is elastically sandwiched. Compared with the embodiment shown in FIGS. 1 to 3, there is an advantage that the number of bendings of the both-end bent portions 6, 6 can be small when manufacturing from a metal plate.

In this embodiment, the lower edge of the upper side 62 of the grid member 61 has the corners 62a, 62a of a shape protruding downward, whereby the folded-back portion 5 of the hanger 81 is formed. The tips of 5 are securely engaged so that they do not come off easily.

[0057]

[Effects of the Invention] As described above, according to the hanger of the grid member of the system ceiling of the present invention, the hanger can be formed by simply pressing the ends of the bent portions at both ends of the hanger against the upper side of the grid member and fitting them together. Since it can be attached to a normal hanger that does not have a general purpose hole on the upper side, the above work can be done with one hand with one touch, so work at high places on the scaffold can be performed safely. be able to. In addition, the hanger can be moved in the longitudinal direction of the grid member relative to each other with the folded-back portions of both ends of the hanger fitted to the bulged upper side of the grid member. It will be easier to correct the mounting position when assembling. Further, since it can be manufactured by simply cutting one metal plate into a predetermined shape and bending it with a press or the like, it is possible to improve the production efficiency and reduce the manufacturing cost.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a hanger for a grid member of a system ceiling according to the present invention.

FIG. 2 is a side view showing a state in which a grid member is suspended and supported by using the hanger of the embodiment.

FIG. 3 is a perspective view showing a state in which a grid member is suspended and supported by using the hanger of the embodiment.

FIG. 4 is a plan view showing another embodiment of the hanger of the grid member of the system ceiling according to the present invention.

FIG. 5 is a perspective view showing another embodiment of the hanger for the grid member of the system ceiling according to the present invention.

FIG. 6 is a side view showing another embodiment of the hanger for the grid member of the system ceiling according to the present invention.

FIG. 7 is a perspective view showing an example of a conventional hanger for a grid member of a system ceiling.

FIG. 8 is a perspective view showing a state in which a grid member is suspended and supported using the conventional hanger.

FIG. 9 is a perspective view showing another example of a conventional hanger for a grid member of a system ceiling.

FIG. 10 is a perspective view showing a state in which a grid member is suspended and supported using the conventional hanger.

[Explanation of symbols]

 1, 71, 81 Hanger 2 Central part 3 Suspending bolt fitting part 4, 6 Bending part 5 Folding part 9, 10, 11 Protrusion part 12 Suspending bolt disengagement prevention part 35 Suspending bolt 36 Nut 61 Grid member 62 Upper side

Claims (5)

[Utility model registration claims] 1. A hanger applied to a grid member of a system ceiling having a bulged upper side, wherein both ends of a metal plate are bent in a substantially U shape, and a central portion of the metal plate has a hole or a notch shape. A hanging bolt fitting portion formed of a groove is formed, and an inverted claw-shaped folded-back portion folded back inward is formed at each end of the bent portions of the metal plate.
The hanger of the grid member of the system ceiling, wherein the interval between the folded-back portions is smaller than the thickness of the upper side of the grid member. 2. The system ceiling according to claim 1, wherein the hanging bolt fitting portion is formed by a notch-shaped groove, and hanging bolt disengagement prevention portions formed by bending downward are formed on both sides of the opening portion. Hanger for grid members. 3. The hanging bolt fitting portion is formed of a notch-shaped groove, and a portion having a width slightly smaller than the outer diameter of the hanging bolt is formed on the inner circumference of the opening portion.
Hanger for the grid member of the system ceiling described. 4. The hanger for a grid member of a system ceiling according to claim 1, wherein the bent portions of the both ends are formed such that a space on a base side thereof is wider than a space on a front end side. 5. The hanger for a grid member of a system ceiling according to claim 1, wherein the bent portions at both ends are formed so as to extend substantially parallel to each other at least at their tip end portions.