CN101054834B - Long size element for suspending ceiling - Google Patents

Abstract

The invention provides a long size element for suspending ceiling with high strength and endurance strength capable of supporting the ceiling long and steadily. The clamping determinate beam (3), whose section is approximately cross-sectional type, has supporting lower side part (21) attached under horizontal engagement part (13, 13) of the steeve (2) with a inverted T-type section, and supporting double-deck side parts (22, 22) retracing from two outer ends of the supporting lower side part (21) and extending inward in the way of covering the horizontal engagement part (13, 13) and retracing to extend outward and cascading. The clamping determinate beam (3) and the steeve (2) are integrated by using supporting lower side part (21) and supporting double-deck side parts (22, 22) on either side to hold the horizontal engagement part (13, 13), thereby developing high strength and endurance strength of static load and repeating load generated by enduring self weight of the ceiling (P), being capable of supporting the ceiling (P) long, steadily and properly.

Description

Long size element for suspending ceiling

Technical field

The present invention relates to the long size element for suspending ceiling that is assembled into clathrate, is used for suspending ceiling.

Background technology

As Figure 17 and shown in Figure 180, form long size element for suspending ceiling f as followsly, promptly, direction in approximate vertical forms the vertical edges t of portion, be formed for fixedly in the upper end of the t of vertical edges portion that the section of suspension hook j is the fastening protrusion i of rectangular ring, the section that forms lower opening in the lower end of the t of vertical edges portion is the fastening edge g of portion of コ font.This long size element for suspending ceiling f is assembled into clathrate, the side end of ceiling p is bearing in above the both sides of the above-mentioned fastening edge g of portion.And, constitute indoor ceiling by a plurality of ceiling p being supported to the arrangement shape.In addition, usually, long size element for suspending ceiling f is shaped by a long rectangular metal sheet is carried out punch process or rolling forming processing etc.

But as shown in figure 18, long size element for suspending ceiling f exposes from ceiling under the state of suspending ceiling p, below the fastening edge g of portion.Therefore, long size element for suspending ceiling f by processing prior application (Tu dress) one-tenth specified color metal sheet or after the processing from below the application fastening edge g of portion form.At this, under the situation of metal sheet of the prior application of processing, because therefore the also part do not exposed from ceiling of application has wasted coating and painting operation.On the other hand, carrying out after the processing under the situation of application, the fastening edge g of portion of コ font carries out application equably for section being formed roughly, the coating process complexity, has increased manufacturing time, has increased fabricating cost.

On the other hand, as other structures, for example in patent documentation 1, as shown in figure 19, proposed combined body parts 72 and decorative element 73 and the long size element for suspending ceiling 71 that forms.At this, decorative element 73 is that metal sheet with the one side of application at least is crooked and form in the ventricumbent mode of its application, and the groove inner face of Xing Chenging also forms application face down.This decorative element 73 is formed with groove inside at the width middle body of metal sheet, turns back, is layered in the groove outside at the notch edge, at the plate end parts formation supporting end 82,82 of metal sheet.Like this, a metal sheet is carried out punch process, makes the surface of decorative element 73 all become application face.And this decorative element 73 is formed on the ceiling support 78,78 of the bottom of body part 72 by groove internal upper part 81 and supporting end 82,82 clampings, makes up with body part 72.Under the situation that this long size element for suspending ceiling 71 is being assembled into grid shape, supporting ceiling p, application becomes the decorative element 73 of specified color to expose from ceiling, can keep the outward appearance of ceiling well.In addition because body part 72 is separate the independent parts that form with decorative element 73, so need not with decorative element 73 application similarly.

[patent documentation 1] spy opens the 2004-300911 communique

Because long size element for suspending ceiling supports ceiling as described above, therefore need have higher intensity and endurance strength as structure.

But as shown in figure 19, the existing structure of above-mentioned patent documentation 1 is the structure of surface bearing ceiling p on the supporting end 82,82 of decorative element 73.At this, because the width dimensions of supporting end 82,82 is very short with respect to the equidirectional length of ceiling p, therefore, the mid portion of ceiling p is because its deadweight has crooked trend downwards.Therefore, on the supporting end 82 of supporting ceiling p, because above-mentioned deadweight, the tilt distribution load (so-called leg-of-mutton distributed load) that increases gradually towards the outer end of its width of loading acts on.And this tilt distribution load also acts on to ceiling support 78 by supporting end 82.Because body part 72 is hung from the top by suspension hook as described above and holds, therefore, load concentrate on ceiling support 78 base portion, make ceiling support 78 crooked downwards.Support the ceiling support 78 of such load effect by seizing on both sides by the arms of groove internal upper part 81 and supporting end 82.Especially, supporting end 82 be from the outside extend, support ceiling support 78 above, therefore be the pith of supporting ceiling support 78.That is, the power of the supporting ceiling support 78,78 of supporting end 82,82 is formed for supporting the intensity and the endurance strength of the deadweight of ceiling p.And, because above-mentioned tilt distribution load is not only as the static load effect, and by formation repeated load effects such as vibrations, therefore, the power of the supporting ceiling support 78 of supporting end 82,82 needs to bear this power that repeats to load (endurance strength).

As mentioned above, on the structure of decorative element 73, supporting end 82 such existing structure, supporting ceiling support 78 is that the plate end parts by metal sheet forms, and becomes a plate naturally.Supporting end 82 at this plate, the power of supporting ceiling support 78 has the limit, if above-mentioned static load and repeat load and act on for a long time, the power that then supports ceiling support 78 reduces gradually, and endurance strength also demonstrates the trend of obvious reduction thereupon.Therefore, for more stably, support ceiling p for a long time, need have and compare the more device of high strength and endurance strength with this existing structure.And in case as earthquake etc. strong vibrations take place, then big load will act on the part moment, therefore, also needs to bear the intensity and the endurance strength of big like this load.

The present invention proposes a kind of scheme of long size element for suspending ceiling, this long size element for suspending ceiling is for the static load that is produced by the deadweight of ceiling and repeat to load, have the high strength and the endurance strength that can stably support ceiling chronically.

Summary of the invention

The present invention is a kind of long size element for suspending ceiling, it is characterized in that, have section and be section that hanging of inverted T-shape hold bar and lower opening and be the fastening beam of コ font roughly, described hang hold bar have above-below direction vertical edges portion, be arranged on the upper end of this vertical edges portion, fixedly the fastening protrusion of the wide cut of suspension hook and the horizontal holding section that extends to form to two foreign sides from the lower end of vertical edges portion; The fastening beam has the supporting bottom portion of attaching (by) below hanging the level engaging portion of holding bar and the supporting of double panel structure bilayer limit portion, this support double-deck limit portion horizontal holding section of covering to turn back from two outboard ends that support following portion above mode inwardly extend and by stacked formation of mode the side further to turn back and to extend to foreign side, this fastening beam has when horizontal holding section is clipped in the double-deck limit portion of supporting and supports between the following portion, support the side portion that the outboard end of double-deck limit portion extends to form downwards from each.At this, the side end of the last surface bearing ceiling of the double-deck limit of the supporting portion of long size element for suspending ceiling usefulness fastening beam.

In this structure, hold bar with hanging and the fastening beam forms independent parts, utilize the double-deck limit of the supporting portion clamping of the portion of supporting bottom of fastening beam and both sides thereof to hang the horizontal holding section of the both sides of holding bar, this is hung hold bar and the fastening beam is integrated thus.At this, the double-deck limit of the supporting of fastening beam portion is by the supporting first limit portion of turning back from the outer end of supporting following portion and extending and constitute its double panel structure from the upper end bending of side portion, the supporting second limit portion that extends to form and form, therefore, keep this state (that is, with hang hold bar horizontal holding section from it side push the state of clamping) power very strong.And this supports the confining force of double-deck limit portion, with above-mentioned existing structure, compare based on the confining force of one of decorative element tabular supporting end, be significantly improved.Therefore, for act on horizontal holding section, the static load that is produced by the deadweight of above-mentioned ceiling and the intensity that repeats to load and endurance strength increase.Therefore, this structure compare with above-mentioned existing structure, can be steadily in the long term and suitably support ceiling.And even for the local big power that produces because of earthquake etc., the high strength and the endurance strength of the double-deck limit of such supporting portion also can be brought into play excellent patience, can suppress the distortion that this supports double-deck limit portion and horizontal holding section by this power.

And long size element for suspending ceiling is under the situation of supporting ceiling, and its fastening beam exposes from ceiling, if therefore become the sheet material of specified color to form the fastening beam with application, then can keep the outward appearance of ceiling well.And this fastening beam is as holding the parts that bar separates and form with hanging, and therefore, hangs and holds bar and need not use the sheet material that similarly carries out application with the fastening beam.Therefore, only become the sheet material of specified color to form the fastening beam and get final product, can reduce painting operation and expense thereof with application.

In addition, the fastening beam of this structure can carry out bending machining by the plate that causes rectangle greatly to and obtains.That is, can be used as following structure and form, that is, form the following portion of supporting, form the double-deck limit of the supporting portion of both sides with its Outboard Sections with the width middle body of a plate, and, with the side portion of fractal one-tenth both sides, outside portion.And, also can by from the lower end of the side portion of both sides respectively inwardly the peristoma portion that extends to form of side be formed in the peristoma of the lower opening of fastening beam.

And the double-deck limit of the supporting of fastening beam portion also can be the mode that it is inner and hang the vertical edges portion butt of holding bar, also this inner can be formed the mode of only leaving predetermined distance from vertical edges portion.At this, support double-deck limit portion make its inner mode as far as possible, and increase the area of the horizontal holding section of supporting near vertical edges portion by forming, therefore, above-mentioned relatively static load and the intensity that repeats to load and endurance strength further improve.Therefore, support the structure that double-deck limit portion preferably enlarges its width dimensions as far as possible.

Above-mentioned long size element for suspending ceiling is proposed that following structural concept is arranged, that is, have top embeded slot and bottom embeded slot, hang the fastening protrusion of holding bar and form the rectangular ring section, the top embeded slot in its lower section, form along the longitudinal; The inner of the double-deck limit of the supporting of fastening beam portion with hang between the vertical edges portion of holding bar and form the gap, the bottom embeded slot forms by this gap, makes the upper and lower end parts of connecting board sheet of the side that is fastened on vertical edges portion and top embeded slot and bottom embeded slot chimeric.

At this, the connecting board sheet is to be used to the parts that make the mutual butt in end, be connected in series two long size element for suspending ceiling.

This structure is formed with top embeded slot and the bottom embeded slot that is used for chimeric connecting board sheet, can by with the upper end fastening of connecting board sheet at the top embeded slot, the connecting board sheet is installed in the lower end fastening on the embeded slot of bottom.Promptly, after the upper end of connecting board sheet snapped in the top embeded slot, making the top butt of its lower end and the double-deck limit of supporting portion, is that fulcrum bending, one side snap in the top embeded slot with this lower end from this state with the upper end by one side, and the connecting board sheet is combined with long size element for suspending ceiling.

In the present invention, because the gap of bottom embeded slot by supporting double-deck limit portion and vertical edges portion constitute, so this groove depth is the thickness of two plates, has enough degree of depth.With above-mentioned existing, be that the bottom embeded slot that the structure of a plate similarly forms is compared with the supporting end of decorative element, form dark groove shape.Therefore, in case in this structure chimeric connecting board sheet, then compare with above-mentioned existing structure, this structure keeps the effect height of this chimerism.Like this, can be suitably and the connection that stably keeps long size element for suspending ceiling, the effect that supports ceiling steadily in the long term further improves.And, because strong masterpieces such as earthquake are used under the situation of long size element for suspending ceiling, also be not easy to remove the connection status that forms by the connecting board sheet, can keep stably supporting the outstanding action effect of ceiling.

And the outer side slot end of bottom embeded slot is the inner of the double-deck limit of supporting portion.At this, this inner is to be folded back and the part that forms, and therefore, its inner outside forms inwardly curve form of side's projection.Therefore, even the aforesaid deep groove structure of bottom embeded slot, under the situation that the connecting board sheet is installed, also can easily chimeric its lower end.And, because the outer side slot end forms curve form, even, also be not easy mutual damage therefore owing to vibrate following end in contact or the slip that waits with the connecting board sheet.In addition, because the curve form of such bottom embeded slot forms by the double-deck limit of supporting portion, the processing that therefore need not carry out other just can form.

And the double-deck limit of the supporting portion of formation bottom embeded slot is by inwardly turn back in the side, turning back to foreign side forms again, and therefore, can stably form its size shape from supporting following portion.Therefore, the inner end positions of turning back to its foreign side stably can be arranged on desirable position.This be because: because the double-deck limit of supporting portion is by forming from supporting the processing that following portion turns back, the following portion of described supporting is from the middle body formation of the sheet material of formation fastening beam, even therefore the size shape of this sheet material has deviation, this deviation also can not have influence on the precision of the processing of turning back.Therefore, be not subjected to the deviation effects of sheet material, can stably be shaped with the size shape of prior setting from the bottom embeded slot of the inner formation of supporting double-deck limit portion.

Propose to have following formation scheme for above-mentioned long size element for suspending ceiling, promptly, hang hold bar its horizontal holding section, leave on the position of predetermined distance to foreign side from vertical edges portion, be bent to form outstanding upward flank along the longitudinal, the double-deck limit of the supporting portion of fastening beam is set to the exterior lateral area of the flank of the horizontal holding section of covering simultaneously.

In this structure, because the exterior lateral area of the flank of horizontal holding section supports in the double-deck limit of the supporting of fastening beam portion, therefore, its width dimensions is restricted, and the area of the horizontal holding section of supporting is restricted.Therefore, this structure is compared near the structure of vertical edges portion with the double-deck limit of supporting portion, has the horizontal holding section trend that reduces of the confining force pushed of side from it.But, by being arranged on, hangs on the horizontal holding section of holding bar flank, can improve the rigidity and the intensity of this horizontal holding section, therefore the intensity and the endurance strength that can improve relative static load comprehensively and repeat to load.That is,, can replenish the amount that reduces the confining force reduction that produces because of the bearing area that supports double-deck limit portion by flank being arranged on the horizontal holding section.

And,, not only can suitably keep with respect to static load and the intensity that repeats to load and endurance strength, but also the double-deck limit of the supporting portion that can shorten the fastening beam at width according to this structure.Therefore, can reduce shaping fastening beam material requested amount.At this, in the present invention, as mentioned above,, therefore can reduce the area (so-called unit consumption) that forms the required sheet material of this fastening beam, the use amount that can cut down coating because available application becomes the sheet material forming fastening beam of specified color.Therefore, can reduce the cost of the employed sheet material of shaping fastening beam, can reduce the total cost of making long size element for suspending ceiling, have the advantage of the market competitiveness that can play very well.

In addition, as the flank of this structure, can be the structure that vertically is coupled, or leaving predetermined distance ground form a plurality of structures along horizontal holding section.The former structure example as being processed into and bulging into convex upward and be shaped by horizontal holding section being crossed over its buckling.And the latter's structure can process shape by the mode that boosts upward with the regulation position with horizontal holding section.

And, the double-deck limit of the supporting of fastening beam portion by formation make structure that its outer end butt inner and flank is provided with or with the structure that the outer termination near-earth of flank is provided with, can enlarge the bearing area of horizontal holding section, therefore can preferably use these structures.In addition, for the inner that will support double-deck limit portion is set to interior position as far as possible, preferably the Outboard Sections of flank is formed shape with horizontal holding section orthogonal as far as possible.

At this, proposition has following structural concept, promptly, hang the fastening protrusion of holding bar and form the rectangular ring section, has in its lower section the top embeded slot that forms along the longitudinal, the upper and lower end parts that makes the connecting board sheet that engage with the side of vertical edges portion and this top embeded slot and to pass through the bottom embeded slot of gap formation of flank of vertical edges portion and horizontal holding section chimeric.

As mentioned above, this structure can be by with the upper end and the top embeded slot fastening of connecting board sheet, install the connecting board sheet with lower end and bottom embeded slot fastening.And,, can be connected in series both by this connecting board sheet is installed on two long size element for suspending ceiling that make mutual end butt.

This structure is owing to be by being arranged on the structure that flank on the horizontal holding section limits the bottom embeded slot, therefore, can stably forming the size shape of this bottom embeded slot.And, as mentioned above,, therefore easily the profile of flank is formed the shape of slyness because flank is provided with by horizontal holding section being carried out bending machining etc.Therefore, under the situation that the connecting board sheet is installed, the bottom embeded slot is chimeric its lower end easily.And, if outer side slot end (flank the inner) is the shape of slyness, even then because the following end in contact of vibration etc. and connecting board sheet or slip also are not easy mutual damage.

In addition, the degree of depth of bottom slot depends on the height of flank.If form flank high, then the rigidity of horizontal holding section improves, but has the trend that is difficult to chimeric connecting board sheet.Therefore, the preferred structure of using is: the height of flank is formed identical or low slightly with the thickness of slab that supports double-deck limit portion.This structure can be guaranteed the rigidity of horizontal holding section, simultaneously, can easy chimeric connecting board sheet and connect after can keep connection status fully.

As mentioned above, in long size element for suspending ceiling of the present invention, section is roughly the fastening beam of コ font, have the following portion of supporting and support double-deck limit portion, the following portion of described supporting be attached to constitute section be hanging of the inverted T-shape horizontal holding section of holding bar below, the double-deck limit of described supporting portion turns back from two outboard ends that support following portion, inwardly extend the side in the top mode that covers horizontal holding section, and then turn back and extend to foreign side, stacked, clamp horizontal holding section by the double-deck limit of the supporting portion of supporting following portion and both sides, with the fastening beam with hang and hold bar and carry out integrated, therefore support double-deck limit portion by this double panel structure and the following portion of supporting between to clamp the power that keeps under the state of horizontal holding section strong, can bear static load that the deadweight because of ceiling produces and high strength and the endurance strength that repeats to load by this confining force performance.Therefore, compare with above-mentioned existing structure, can be steadily in the long term and suitably support ceiling.And, owing to will hang and hold bar and fastening beam and form as independent parts, therefore if become the sheet material forming fastening beam of specified color with application, the hanging of top that then is hidden in ceiling held bar and also need not be used the coating material identical with the fastening beam, can reduce painting operation and expense thereof.

And, make the upper and lower end parts of the connecting board sheet that engages with the side of vertical edges portion and top fitting portion and bottom fitting portion chimeric, described top fitting portion is below hanging the fastening protrusion of holding bar, form along the longitudinal; Described bottom fitting portion be formed on the fastening beam the double-deck limit of supporting portion the inner and hang in the gap of the vertical edges portion of holding bar, in such structure, can form the bottom embeded slot more deeply, keep the effect excellence of the chimerism of connecting board sheet.Therefore, have following excellent effect, that is, can stably keep the connection status of long size element for suspending ceiling, can support ceiling steadily in the long term.And the scale error that this bottom embeded slot is not formed the sheet material of fastening beam influences, and can stably be shaped with the size shape of prior setting.

And, hang the horizontal holding section of holding bar, leave on the position of predetermined distance to foreign side from vertical edges portion, be bent to form outstanding upward flank, simultaneously, the double-deck limit of the supporting portion of fastening beam is set in the mode in the zone in the outside of the flank that covers horizontal holding section, in such structure, can the improve the standard rigidity and the intensity of holding section, therefore, limited the bearing area of horizontal holding section even support double-deck limit portion, also can improve comprehensively with respect to static load and the intensity and the endurance strength that repeat to load.And, by shortening the width of the double-deck limit of supporting portion, can reduce the unit consumption of the sheet material that is used to form the fastening beam and the use amount of coating, therefore the market competitiveness that can reduce cost, play very well.

At this, make the upper and lower end parts of the connecting board sheet that engages with the side of vertical edges portion and top embeded slot and bottom embeded slot chimeric, described top embeded slot is below hanging the fastening protrusion of holding bar, form along the longitudinal; Described bottom embeded slot constitutes by the gap of the flank of vertical edges portion and horizontal holding section, in such structure, because bottom embeded slot and fastening beam irrespectively form, therefore, can stably form the bottom embeded slot with the size shape of prior setting.And, owing to the outer end of bottom embeded slot can be configured as slick and sly shape, therefore, lower end that can easy chimeric connecting board sheet.And, also be not easy impairedly mutually even vibrate after chimeric etc., therefore, generally speaking can suitably keep endurance life.

Description of drawings

Fig. 1 is the longitudinal section of first embodiment of expression long size element for suspending ceiling 1.

Fig. 2 is the stereogram of this long size element for suspending ceiling 1.

Fig. 3 is that (A) that constitute this long size element for suspending ceiling 1 hangs and hold the bar 2 and (B) longitudinal section of fastening beam 3.

Fig. 4 is the key diagram of the forming process of the expression middle girder body 35 that forms fastening beam 3.

Fig. 5 is expression processing middle girder body 35, will hangs the key diagram of holding bar 2 incorporate forming processes.

Fig. 6 is the key diagram of expression from the continuous forming process of Fig. 5.

Fig. 7 is (A) lateral view, (B) vertical view that is used for connecting board sheet 40 that long size element for suspending ceiling 1 is connected in series.

Fig. 8 is expression connects the state between the long size element for suspending ceiling 1 by connecting board sheet 40 a key diagram.

Fig. 9 is that expression is entrenched in the top embeded slot 15 of long size element for suspending ceiling 1 and the key diagram of the process in the bottom embeded slot 16 with connecting board sheet 40.

Figure 10 vertical view that to be expression see from the opposite side of long size element for suspending ceiling 1 in conjunction with (A) of the state of long size element for suspending ceiling 1 ' in the mode of orthogonal from a side of long size element for suspending ceiling 1, the vertical view of (B) long size element for suspending ceiling 1 '.

Figure 11 is that expression links (A) vertical view of long size element for suspending ceiling 1 ', 1 ' state, the p-p sectional elevation of (B) vertical view (A) from the both sides of long size element for suspending ceiling 1 in the mode of orthogonal.

Figure 12 is the longitudinal section of the long size element for suspending ceiling 51 of other examples of expression.

Figure 13 is the longitudinal section of second embodiment of expression long size element for suspending ceiling 101.

Figure 14 is the stereogram of this long size element for suspending ceiling 101.

Figure 15 is that (A) that constitute this long size element for suspending ceiling 101 hangs and hold the bar 102 and (B) longitudinal section of fastening beam 103.

Figure 16 is that expression is entrenched in the top embeded slot 15 of long size element for suspending ceiling 101 and the key diagram of the process in the bottom embeded slot 116 with connecting board sheet 40.

Figure 17 is the key diagram that expression is assembled into existing long size element for suspending ceiling f the state that clathrate uses.

Figure 18 is the longitudinal section of the long size element for suspending ceiling f of expression existing structure.

Figure 19 is other the longitudinal section of long size element for suspending ceiling f of existing structure of expression.

The specific embodiment

Use accompanying drawing that embodiments of the invention are described below.

First embodiment

As shown in Figure 1 to Figure 3, the long size element for suspending ceiling 1 of first embodiment is by being that hanging of inverted T-shape held fastening beam 3 that bar 2 and section are the コ font and integrated formation in conjunction with section.

Above-mentioned hanging held bar 2 and formed by long roughly rectangular steel steel plate, and its section shape is with respect to center line formation minute surface symmetry.This hangs holds bar 2 by a steel steel plate is carried out the section that inverted T-shape is processed in drawing, is made of fastening protrusion 12, vertical edges portion 11, horizontal holding section 13,13.At this, to be with the steel steel plate so that the back-to-back partly mode in the both sides of its longitudinal centre line is overlapping be shaped in vertical edges portion 11, and two of forming above-below direction are tabular.Fastening protrusion 12 extends respectively from the upper end of two plates constituting above-mentioned vertical edges portion 11, and it is that the annular of rectangle forms that the middle body bending machining of steel steel plate is become section. Horizontal holding section 13,13 forms to foreign side's bending extension respectively from the lower end of two plates constituting above-mentioned vertical edges portion 11.The tabular that this horizontal holding section 13,13 forms along horizontal direction.

And below hanging the fastening protrusion 12 of holding bar 2, the top embeded slot 15 that hollowly forms is arranged on the both sides of the upper end of vertical edges portion 11 along the longitudinal upward.And in vertical edges portion 11, vertically the clamping recess 18 of depression is formed on its longitudinal end.Top embeded slot 15 and clamping recess 18 are the structures that are used to engage connecting board sheet 40 described later, specifically as described later.

Above-mentioned fastening beam 3 is formed by the roughly rectangular steel color steel sheet of long size, and its section shape forms the minute surface symmetry with respect to center line.This fastening beam 3 forms the roughly section of コ font by a steel color steel sheet is carried out drawing, is made of the following portion 21 of supporting, the double-deck limit of supporting portion 22,22, side portion 23,23, peristoma portion 24,24.

At this, support following portion 21 and form by the middle body of color steel sheet, form and be attached to above-mentioned hanging and hold writing board shape below the horizontal holding section 13 of bar 2.Supporting double- deck limit portion 22,22 forms top supporting first 22a of limit portion, the 22a of the horizontal holding section 13 of coverings and is layered in this and support supporting second 22b of limit portion on first 22a of limit portion, the 22a, the double panel structure of 22b.This supports first 22a of limit portion, 22a and supports two outer end extensions of following portion 21 from this, and the outboard end in horizontal holding section 13 inwardly turns back, forms to cover this mode above horizontal holding section 13 in the side.Support second 22b of limit portion, 22b from the inner of supporting first 22a of limit portion, 22a to foreign side turn back, with support first 22a of limit portion with this, the back-to-back mode of 22a overlaps to form.And side portion 23,23 extends to form downwards respectively from the outboard end that respectively supports second 22b of limit portion, 22b that supports double-deck limit portion 22,22.In addition, support the sweep of second 22b of limit portion, 22b and side portion 23,23, form in mode with the outside driving fit of the fold back portion of above-mentioned portion of supporting bottom 21 and supporting first 22a of limit portion, 22a.And peristoma portion 24,24 extends to form from the lower end of side portion 23,23 is inwardly square respectively, from the both side ends formation of color steel sheet.And, forming opening between this peristoma portion 24,24, fastening beam 3 forms the roughly コ i section of lower opening.In addition, turn back to upside in the inner of peristoma portion 24,24, so that cannot see the inner from the below.

In addition, in this first embodiment, between the inner of the double-deck limit of supporting portion 22,22 and vertical edges portion 11, form the gap of predetermined distance, this formation bottom, gap embeded slot 16.

Above-mentioned hanging held bar 2 and fastening beam 3 is integrated by following method,, will hang the horizontal holding section 13,13 of holding bar 2 by attaching portion of supporting bottom 21 in its lower section and the supporting bilayer limit portion 22,22 above each of covering respectively rivets, clamping that is.Thus, form long size element for suspending ceiling 1.In this first embodiment, use electro-galvanized steel as the steel steel plate that hangs the moulding material of holding bar 2, and, use external coating to become the color steel sheet of specified color as the steel steel plate of the moulding material of fastening beam 3.Like this, therefore long size element for suspending ceiling 1, under the situation of supporting ceiling p (with reference to Figure 17), can only be used for color steel sheet the fastening beam 3 that exposes from ceiling owing to will hang and hold bar 2 and fastening beam 3 forms as independent parts.

According in the manufacturing process of Fig. 4 to Fig. 6 long size element for suspending ceiling 1 like this, make to hang and hold bar 2 and fastening beam 3 incorporate operations are specifically described.

To hang and hold bar 2 and form above-mentioned inverted T-shape section by the rectangular hot-dip galvanized steel sheet that cuts off the growth size being carried out rolling forming processing.In addition, can form the operation that this hangs the rolling forming processing of holding bar 2 in the same manner, omit particular content with existing operation.

The color steel sheet 30 of the rectangular moulding material as fastening beam 3 of on the other hand, preparing the growth size.Then, to shown in Fig. 4 (B), the middle body of the width of this color steel sheet 30 is configured as along the longitudinal groove 31 as Fig. 4 (A) by rolling forming processing.Groove 31 forms by the trench bottom 31a of flat shape with from groove side wall portion 31b, 31b that the two side ends of trench bottom 31a generally perpendicularly erects, forms the width dimensions of trench bottom 31a bigger slightly than the overall breadth dimension of hanging the horizontal holding section 13,13 of holding bar 2.In addition, process, always stably form accurately the trench bottom 31a width dimensions of groove 31 and the height dimension of groove side wall portion 31b, 31b by rolling forming.Be not subjected to the influence of the standard deviation in the allowable error scope of size shape of color steel sheet 30.

And, shown in Fig. 4 (C),, make the shape of its each side bending downwards, shaping peristoma portion 24,24 from the side plate 32,32 that extend to foreign side respectively two upper ends of groove side wall portion 31b, the 31b of groove 31.By obtaining middle girder body 35 like this.In addition, this peristoma portion 24 turns back upward by the width dimensions with regulation again and forms.Absorb the standard deviation of the size shape of above-mentioned color steel sheet 30 with this end of turning back.

Shown in Fig. 5 (A), on the inner face of the trench bottom 31a that is formed at the groove 31 on the middle girder body 35, mounting hang the horizontal holding section 13,13 of holding bar 2 below.Afterwards, shown in Fig. 5 (B), process, the inside respectively side of groove side wall portion 31b, the 31b of groove 31 is folded, is attached on the horizontal holding section 13,13 by rolling forming.Then, shown in Fig. 6 (C), carry out rolling forming processing, with side plate 32,32 by being pressed on groove side wall portion 31b, the 31b that is attached on the horizontal holding section 13,13, then, shown in Fig. 6 (D), carry out processing in the outer end of groove side wall portion 31b, 31b with side plate 32,32 bendings downwards.At this, roll over the processing that is attached on groove side wall portion 31b, the 31b by the processing of folded slot side wall portion 31b, 31b with side plate 32,32, rivet clamping and hang the horizontal holding section 13,13 of holding bar 2.

Like this, by middle girder body 35 being carried out rolling forming processing, forming and hang and hold bar 2 incorporate fastening beams 3.By this processing, the trench bottom 31a of middle girder body 35 becomes the following portion 21 of supporting, groove side wall portion 31b, 31b and the inside part that is layered in the side plate 32,32 on this groove side wall portion 31b, the 31b become the double-deck limit of supporting portion 22,22, and the Outboard Sections of side plate 32,32 becomes side portion 23,23.By obtaining long size element for suspending ceiling 1 like this.

In such manufacturing procedure, as mentioned above, since following portion of supporting 21 and the double-deck limit of supporting portion 22,22 respectively by size shape is stablized, trench bottom 31a and groove side wall portion 31b, the 31b of the groove 31 of high accuracy rolling forming processing form, therefore, be not subjected to the influence of standard deviation of the size shape of color steel sheet 30, can be stably, form accurately with the needed size shape of prior setting.Therefore, according to setting the inner end positions of stably determining the double-deck limit of supporting portion 22,22, even, can stably form its size shape accurately too by this inner and the bottom embeded slot 16,16 that the gap of hanging the vertical edges portion 11 of holding bar 2 forms.In addition, in this first embodiment, the well width size of bottom embeded slot 16,16 is formed the size roughly the same with the thickness of slab of connecting board sheet 40 described later, improved the action effect of the chimerism that keeps this connecting board sheet 40.

Below the structure that just long size element for suspending ceiling 1 of above-mentioned first embodiment is connected in series describe.

Fig. 7 represents to be used to connect the connecting board sheet 40 of two long size element for suspending ceiling 1.On this connecting board sheet 40, the hook portion 41,41 side-prominent to the backboard face is provided with part in the central.And, tabling piece portion 42 and chimeric claw 43 are set respectively in the both sides of this hook portion 41,41.At this, tabling piece portion 42 is positions that its upper end is chimeric with the top embeded slot 15 of long size element for suspending ceiling 1, and chimeric claw 43 forms the shape that is bent into chevron to the plate face side, its upper end position is arranged to be lower than the upper end of joint fastener portion 42.And the lower end of connecting board sheet 40 forms as chimeric following portion 45 along the longitudinal, becomes the position chimeric with the bottom embeded slot 16 of long size element for suspending ceiling 1.

In addition, on this connecting board sheet 40, screw hole 46,46 is formed on the left and right sides of hook portion 41,41.And, on above-mentioned long size element for suspending ceiling 1, under connecting board sheet 40 was installed in state on this long size element for suspending ceiling 1, each screw hole 19 was arranged on the position relative with each screw hole 46,46 of connecting board sheet 40 (with reference to Fig. 2).

Utilize this connecting board sheet 40 to connect two long size element for suspending ceiling 1.Shown in Fig. 8 (A), the Outboard Sections of connecting board sheet hook portion 41 40, one side is installed in the end of a side long size element for suspending ceiling 1.This installation process snaps in the upper end of the tabling piece portion 42,42 of connecting board sheet 40 in the top embeded slot 15 of long size element for suspending ceiling 1 shown in Fig. 9 (A), with this upper end for naming a person for a particular job chimeric following portion 45 and the double-deck limit of supporting portion 22 butts.From this state, shown in Fig. 9 (B), chimeric following portion 45 is pushed to the direction of vertical edges portion 11, should chimeric following portion 45 snap in bottom embeded slot 16.Then, make connecting board sheet 40 to laterally moving, so that a side hook portion 41 fastenings are on the clamping recess 18 of vertical edges portion 11.

Equally, shown in Fig. 8 (B), the opposing party's long size element for suspending ceiling 1 is installed on side part connecting board sheet 40, that long size element for suspending ceiling 1 is not installed.Then, be screwed together with the screw hole 46,46 of plate 40 and the screw hole 19,19 of each long size element for suspending ceiling 1,1 by screw 47,47.Then, shown in Fig. 9 (C), by with each chimeric claw 43 of connecting board sheet 40 by being pressed in vertical edges portion 11 sides, stretching upward, make the upper end of this chimeric claw 43 snap in above-mentioned embeded slot 15.By like this, two long size element for suspending ceiling 1 are connected in series, make mutual end butt.

With the above-mentioned long size element for suspending ceiling 1 that similarly is connected specified quantity successively.The long size element for suspending ceiling 1 that has connected specified quantity like this is arranged in parallel, long size element for suspending ceiling 1 ' orthogonal ground is connected with adjacent long size element for suspending ceiling 1 respectively.Connect each by leaving predetermined distance ground, long size element for suspending ceiling 1,1 ' all is arranged to grid shape (with reference to Figure 17).

At this, with regard to make long size element for suspending ceiling 1,1 ' each other the structure of orthogonal describe.As Figure 10 and shown in Figure 11, on the long size element for suspending ceiling 1 that is connected in series, connecting hole 38 is formed on the assigned position longitudinally of its vertical edges portion 11.This connecting hole 38 forms on two side portions longitudinally has the shape of engagement groove part 38a, 38a.And, under connecting hole 38, excised the both sides that a part of insertion opening 39,39 is formed on fastening beam 3.On the other hand, with the long size element for suspending ceiling 1 ' of this long size element for suspending ceiling 1 orthogonal in, the longitudinal end of fastening beam 3 forms and is processed into leg-of-mutton triangle front end 37 (with reference to Figure 11 (B)).When connecting, this triangle front end 37 is inserted the insertion opening 39 of long size element for suspending ceiling 1.

Orthogonal connects plate 60 and combines with the end of long size element for suspending ceiling 1 '.As shown in Figure 10 and Figure 11, this orthogonal connects plate 60 by hook portion 62 formations of carrying out fixedly maintenance board 61 that face contact and engaging with the connecting hole 38 of above-mentioned long size element for suspending ceiling 1 with the vertical edges portion 11 of long size element for suspending ceiling 1 '.At this, the fixing board 61 that keeps screws togather by screw 63,63 and long size element for suspending ceiling 1 ', is fixedly connected on this long size element for suspending ceiling 1 '.This orthogonal connects plate 60 makes the end highlightedly combination of its hook portion 62 from long size element for suspending ceiling 1 '.And hook portion 62 forms leaf spring, forms the co-end 62a that engages with the engagement groove part 38a of above-mentioned connecting hole 38 in its end.In addition, orthogonal connects plate 60 except the structure that screws togather with screw 63,63, also can rivet to be combined on the long size element for suspending ceiling 1 '.

As shown in figure 10, the hook portion 62 that will be connected plate 60 with the orthogonal of long size element for suspending ceiling 1 ' combination embeds its connecting hole 38 from a side of the long size element for suspending ceiling 1 that is connected in series.At this, the co-end 62a of hook portion 62 engages with the engagement groove part 38a of connecting hole 38, simultaneously, inserts leg-of-mutton front end 37 to inserting opening 39.Equally, as shown in figure 11, other the hook portion 62 of long size element for suspending ceiling 1 ' is embedded identical connecting hole 38 from the opposite side of long size element for suspending ceiling 1.By like this, long size element for suspending ceiling 1 ', 1 ' orthogonal ground can be connected with the both sides of the long size element for suspending ceiling 1 that is connected in series.

Like this, by fixing keeping long size element for suspending ceiling 1 ' that orthogonal connects plate 60, connecting the long size element for suspending ceiling 1 that is connected in series with the interval of regulation.Like this, long size element for suspending ceiling 1,1 ' can be arranged to clathrate (with reference to Figure 17).In addition, the fixing long size element for suspending ceiling 1 ' that keeps orthogonal to connect plate 60, except forming above-mentioned triangle front end 37, having and screw togather orthogonal and connect the screw hole (omitting diagram) of the screw 63,63 of plate 60, also can form identical structure with the long size element for suspending ceiling 1 that is connected in series, use identical symbol for identical position, and omit its explanation.

Be assembled into cancellate long size element for suspending ceiling 1,1 ' like this with existing identical, on its fastening protrusion 12, be set with suspension hook (with reference to Figure 17).Then, on the tetragonal opening that surrounds with long size element for suspending ceiling 1, ceiling p is installed respectively, a plurality of ceilings is arranged shape ground be provided with, constitute indoor ceiling.At this, by the end, four limits (with reference to Fig. 1) of the double-deck board 22 supporting ceiling p of the supporting of long size element for suspending ceiling 1.

On the ceiling that constitutes as mentioned above, be exposed below the fastening beam 3 of long size element for suspending ceiling 1.This fastening beam 3 is owing to be to become the color steel sheet of specified color to be shaped by application, therefore, kept the outward appearance of good ceiling.On the other hand, though long size element for suspending ceiling 1 hang that to hold bar 2 be to be formed by the hot-dip galvanized steel sheet that does not have the application color owing to be hidden in the ceiling the inside, therefore to the not influence of outward appearance of ceiling.That is, in the long size element for suspending ceiling 1 of this first embodiment, need not to be hidden in hanging of ceiling the inside and hold bar 2 with the color steel sheet shaping.Therefore, can reduce the painting operation that forms color steel sheet, reduce coating material, but or the use of the higher color steel sheet of controlled price, generally speaking can reduce fabricating cost.

As described above long size element for suspending ceiling 1 is being assembled into clathrate, is being provided with under the state of ceiling p, because the deadweight of ceiling p, support the outer end of double-deck limit portion 22, tilt distribution loading that negative load increases gradually in the double-deck limit of supporting of each long size element for suspending ceiling 1 one 22 towards this.This is because the cause that horizontal ceiling length is grown than the width of the double-deck limit of supporting portion 22 significantly.Because this tilt distribution load also acts on hanging the horizontal holding section 13 of holding bar 2 by supporting double-deck limit portion 22, therefore, load (stress) concentrate on easily utilize suspension hook from hanging of slinging of top hold bar 2, on horizontal holding section 13 and the sweep that vertical edges portion 11 is connected.This load makes the effect agley downwards of horizontal holding section 13.Support double-deck limit portion 22 and the following portion 21 of supporting by seizing the horizontal holding section 13 of supporting such load effect on both sides by the arms.

And, as mentioned above, because the double-deck limit of the top supporting portion 22 of the horizontal holding section 13 of supporting, it is supported first 22a of limit portion turns back from the outside of supporting following portion 21, extends and form, and it is supported second 22b of limit portion turns back from the upper end of side portion 23, extends and form, therefore, with the state of the supporting following portion horizontal holding section 13 of 21 clampings under the power that keeps strong.Therefore, even, also can bring into play the intensity of fully bearing this load owing to above-mentioned tilt distribution load effect will make the crooked load in horizontal holding section 13 downwards.And because this structure is the splendid structure of confining force of the horizontal holding section 13 of clamping, therefore not only to static load, the endurance strength that repeats to load (fatigue strength) and the endurance life (fatigue life) that produce being waited by vibration are also very strong.By like this, even long size element for suspending ceiling 1 also has the durability that can fully bear for the tilt distribution load of carrying out repeat function because of vibration of ceiling p etc.

Like this, the long size element for suspending ceiling 1 of this structure can for a long time, stably support ceiling p.And, even because earthquake etc. and producing under the situation that strong stress concentrates,, also can suppress the distortion of horizontal holding section 13 by supporting the strong confining force of double-deck limit portion 22 in the part, also can bring into play high security.In addition, in this first embodiment, because supporting second 22b of limit portion of the double-deck limit of supporting portion 22 and the sweep of side portion 23 copy the external surface crimping of the fold back portion of supporting first 22a of limit portion and the following portion 21 of supporting to form, therefore, the power that remains the state of the above-mentioned horizontal holding section 13 of clamping further strengthens.

As with long size element for suspending ceiling 1 structure relatively of above-mentioned basis first embodiment, the long size element for suspending ceiling 71 of disclosed existing structure is as shown in figure 19 in above-mentioned patent documentation 1.The decorative element 73 of this long size element for suspending ceiling 71, since to a metal sheet so that the ventricumbent mode rolling forming of its application processes shape, therefore, from the supporting end 82,82 of the ceiling support (horizontal holding section) 78,78 of top support body parts 72 must form one tabular.And 82,82 of this tabular supporting ends form from side portion 83,83 bending extensions.The confining force of the supporting ceiling support 78,78 that forms with this supporting end 82,82 is compared, and the double-deck limit of the supporting of above-mentioned basis first embodiment portion 22,22 is the confining force of the horizontal holding section 13,13 of performance supporting strongly significantly.This is because the double-deck limit of supporting portion 22,22 is formed as described above the cause of following dual plated construction, in this dual plated construction, it is supported first 22a of limit portion, 22a and support second 22b of limit portion, 22b respectively from support following portion 21, side portion 23,23 is extended and is formed.Therefore, the long size element for suspending ceiling 1 of this first embodiment is compared with the long size element for suspending ceiling 71 of existing structure, static load that produces with respect to the deadweight because of ceiling p and the intensity that repeats to load and endurance strength obviously improve, and the action effect that supports ceiling p steadily in the long term is very good.

And, the inner and the gap of the vertical edges portion 11 bottom embeded slot 16 that be formed for chimeric above-mentioned connecting board sheet 40 of the long size element for suspending ceiling 1 of this first embodiment by supporting double-deck limit portion 22.The groove depth of this bottom embeded slot 16 depends on the dual plate thickness that constitutes the double-deck limit of supporting portion 22.And in the long size element for suspending ceiling 71 of above-mentioned existing structure, the groove depth of the same bottom embeded slot 86 that forms depends on the supporting end 82 of a plate.Therefore, the bottom embeded slot 16 of this first embodiment deeper forms than the bottom embeded slot 86 of existing structure.By like this, this first embodiment compares with existing structure, keeps the effect of chimerism of connecting board sheet 40 very excellent, keeps the effect of the state that is connected in series very good.Therefore, for example taking place under the situation of earthquake etc., suppressing because vibrations make connection status releasing effective of long size element for suspending ceiling 1.

At this, in above-mentioned bottom embeded slot 16, its groove outer end is the inner end of the double-deck limit of supporting portion 22.The inner end that supports double-deck limit portion 22 owing to support first 22a of limit portion from it, turning back to supporting second 22b of limit portion forms, and therefore forms the profile of curved surface shaped.Therefore, as mentioned above, when connecting board sheet 40 is installed, easily its lower end is snapped in bottom embeded slot 16, and the lower end is damaged because of the groove outer end of bottom embeded slot 16 can prevent to snap in the time.Connecting board sheet 40 is being installed, when making this connecting board sheet 40, is being prevented that the lower end of connecting board sheet 40 and the groove outer end of bottom embeded slot 16 from sliding and impaired effect mutually but also have to horizontal slip.

As mentioned above, owing to form the size shape of the double-deck limit of supporting portion 22 stably, accurately, therefore can stably form this bottom embeded slot 16 with the size shape of prior setting equally.Therefore, the long size element for suspending ceiling of being produced 1 can not be subjected to color steel sheet 30 scale error influence and play consistently the action effect of above-mentioned bottom embeded slot 16.On the other hand, in the long size element for suspending ceiling 71 of above-mentioned existing structure, its underpart embeded slot 86 depends on the inner end positions of the supporting end 82 of decorative element 73.But this supporting end 82 is owing to the side end by metal sheet forms, and therefore, inner end positions produces standard deviation because of the scale error of metal sheet.That is, in existing structure, size that the groove width of bottom embeded slot 16 is stably formed regulation is a difficulty very.

In addition, the shape of such bottom embeded slot 16 is formed naturally by the double-deck limit of the supporting portion 22 that forms this first embodiment, and therefore the special processing that need not be used to strengthen the special processing of groove depth or be used to form curve form just can obtain.That is, the action effect of above-mentioned bottom embeded slot 16 generations is distinctive action effects that structure had of fastening beam 3.

And above-mentioned top embeded slot 15 and bottom embeded slot 16 not only can be used as connecting board sheet 40, and can be used as the chimeric parts that are used to connect long size element for suspending ceiling 1 and the connecting board sheet (omitting diagram) of the L font of indoor wall and use.The connection status of effect excellence, maintenance and chamber interior walls that the connecting board sheet of this L font is also 40 identical with the connecting board sheet, keep this chimerism effective.

On the other hand, as mentioned above, in the structure of this first embodiment, top embeded slot 15 is set on fastening protrusion 12, and the gap that will support between double-deck limit portion 22 and the vertical edges portion 11 forms bottom embeded slot 16, but as shown in figure 12, also can form other structure, for example formation makes the inner of the double-deck limit of supporting portion 52,52 and the long size element for suspending ceiling 51 of vertical edges portion 11 butts.In the fastening beam 53 of this structure, because this area that supports the horizontal holding section 13 of double-deck limit portion 52,52 of supporting strengthens, therefore, further improved support double-deck limit portion 52,52, with the confining force of the following portion of the supporting horizontal holding section 13 of 21 clampings, further improved the static load and intensity that repeats to load and the endurance strength that produce with respect to by above-mentioned tilt distribution load.In addition, in this structure,, therefore need other formation or use different syndeton with this first embodiment owing to do not form the bottom embeded slot.In this Figure 12, the component parts identical with above-mentioned first embodiment uses identical symbolic representation, and omits its explanation.

Second embodiment

To shown in Figure 15, the long size element for suspending ceiling 101 of second embodiment is integrally formed for the fastening beam 103 of コ font roughly by being that hanging of inverted T-shape held bar 102 and section in conjunction with section as Figure 13.Hang that to hold bar 102 identical with above-mentioned first embodiment, form, constitute by fastening protrusion 12, vertical edges portion 11, horizontal holding section 113,113 by causing the rolling forming processing that rectangular steel steel plate carries out bending machining greatly to one.

At this, horizontal holding section 113,113 has on the position of predetermined distance in the horizontal direction in the lower end from vertical edges portion 11, be bent to form along its vertically, (fastening protrusion 12 sides) outstanding flank 115,115 upward.Under the position with the interior side of this flank 115 of horizontal holding section 113 and foreign side remains on state on the same horizontal direction, this flank 115 is bent to the chevron section that protrudes upward by bending machining.By such processing, become same horizontal plane below the horizontal holding section 113 except its flank 115.And, the predetermined distance between the lower end of this flank 115,115 and vertical edges portion 11 set for identical with the interval of hanging between the vertical edges portion 11 of holding bar 2 with the double-deck limit of the supporting portion 22,22 of the fastening beam 3 of above-mentioned first embodiment.

And, in this second embodiment, constitute bottom embeded slot 116 by the gap between the lower end that is formed on flank 115,115 and vertical edges portion 11.And, this flank 115,115 is formed the aspect ratio fastening beam 103 described later above its horizontal fitting portion 113,113 the double-deck limit of supporting portion 122 above low slightly.And, this flank 115,115 is formed the shape that its inside part is tilted more lenitively, by like this, when being installed in above-mentioned connecting board sheet 40 on the bottom embeded slot 116, can snap in the lower end of this connecting board sheet 40 easily.

And, with this flank 115 form make its Outboard Sections as far as possible with the shape (the so-called wall shape that erects) of horizontal fitting portion 113 orthogonals.By like this, the double-deck limit of the supporting portion 122 of fastening beam 103 described later can be extended to interior side as far as possible, therefore, the effect that improves this confining force that supports 122 pairs of horizontal fitting portions 113 of double-deck limit portion is very good.Like this, in this second embodiment, the section shape of flank 115 is formed the leg-of-mutton chevron of approximate right angle.

Except flank 115,115 being formed on the horizontal holding section 113,113, this hangs, and to hold bar 102 identical with the structure of above-mentioned first embodiment, and therefore identical composed component uses identical symbol, and omits its explanation.

On the other hand, above-mentioned fastening beam 103 is identical with above-mentioned first embodiment, form roughly コ i section by causing the rolling forming processing that rectangular steel color steel sheet carries out bending machining greatly, constitute by the following portion 21 of supporting, the double-deck limit of supporting portion 122,122, side portion 23,23, peristoma portion 24,24 to one.At this, support that double-deck limit portion 122,122 forms stacked supporting first 122a of limit portion, 122a and supporting second 122b of limit portion, 122b and the double panel structure that forms.And support two outer end extensions of following portion 21 from this, inwardly turn back the side, turning back and form to foreign side again near the position of the outer end of the flank 115,115 of horizontal holding section 113,113 at the outboard end of horizontal holding section 113,113.That is, this supports double-deck limit portion exterior lateral area 113a, the 113a horizontal holding section 113,113 of 122,122 coverings, that become the outside of flank 115,115.In addition, as mentioned above,, therefore, can be as far as possible the inner of the double-deck limit of supporting portion 122 be provided with the position as the inboard because the Outboard Sections of flank 115 forms the vertical shape of trying one's best.By like this, can improve the confining force of 122 pairs of horizontal holding sections 113 of the double-deck limit portion of supporting as much as possible.

Except the mode with the exterior lateral area 113a, the 113a that cover horizontal holding section 113,113 forms the double-deck limit of supporting portion 122,122, the structure of this fastening beam 103 is identical with above-mentioned first embodiment, therefore identical composed component uses identical symbol, and omits its explanation.

And, hang hold bar 102 identical with fastening beam 103 with above-mentioned first embodiment, be to hang the horizontal holding section 113,113 of holding bar 102 by attaching portion of supporting bottom 21 in its lower section and the supporting bilayer limit portion 122,122 above each of its exterior lateral area 113a, 113a of covering rivets, clamping and incorporate.And, hang and hold bar 102 and utilize electro-galvanized steel to be shaped, and fastening beam 103 utilizes color steel sheet to be shaped.

As mentioned above, the fastening beam 103 of this second embodiment is because the double-deck limit of supporting portion 122,122 covers exterior lateral area 113a, the 113a of horizontal holding section 113,113, therefore compare with the structure (Fig. 1 or other routine Figure 12) of above-mentioned first embodiment, the width that supports double-deck limit portion 122 shortens.That is, the color steel sheet of the fastening beam 103 that is used to be shaped can use the short steel plate of its width dimensions (becoming the horizontal size of the double-deck limit of supporting portion 122,122), can reduce unit consumption (usable floor area of panel material).And, the use amount of the coating in the time of can reducing the manufacturing color steel sheet.Like this, can reduce the buying expenses or the fabricating cost of color steel sheet, generally speaking can reduce the fabricating cost of fastening beam 103.

In addition, in the manufacturing process of the long size element for suspending ceiling 101 of this second embodiment, make to hang and hold bar 102 identical with fastening beam 103 incorporate operations (with reference to Fig. 4 to Fig. 6) with above-mentioned first embodiment.At this, this second embodiment compares with above-mentioned first embodiment, uses the short rectangle colorful steel plate of width dimensions.And, be processed to form this color steel sheet, so that, the height dimension of the groove side wall portion (being equivalent to the 31b among Fig. 4) of this groove is equated with the width dimensions of the exterior lateral area 113a of horizontal holding section 113 in that its central authorities are partially-formed when being groove (with reference to Fig. 4 (A), (B)).Then, hang the mode of the horizontal holding section 113,113 of holding bar 102 with riveted joint, clamping and process, shaping is hung with this and is held bar 102 incorporate fastening beams 103, obtains long size element for suspending ceiling 101.This second embodiment similarly forms with above-mentioned first embodiment except the height dimension that changes the groove side wall portion, and omission specifies.

This second embodiment is owing to similarly be processed to form with above-mentioned first embodiment, therefore, and can be with needed size shape, stably form long size element for suspending ceiling 101 accurately.

On the other hand, as the structure that is connected in series above-mentioned long size element for suspending ceiling 101, identical with above-mentioned first embodiment (with reference to Fig. 8) undertaken by top embeded slot 15 and the bottom embeded slot 116 that connecting board sheet 40 is snapped in long size element for suspending ceiling 101.At this moment, connecting board sheet 40 snaps in the upper end of its tabling piece portion 42,42 the top embeded slot 15 of long size element for suspending ceiling 101 like that shown in Figure 16 (A), make in chimeric following portion 45 and the double-deck limit of the supporting portion 122 behind the butt, shown in Figure 16 (B), like that, push, snap in bottom embeded slot 116 for propping up the chimeric following portion 45 that names a person for a particular job to the direction of vertical edges portion 11 with the upper end.Then, such shown in Figure 16 (C), be screwed together with plate 40 and long size element for suspending ceiling 101 by screw 47,47, also stretch upward by being pressed on vertical edges portion 11 sides by each chimeric claw 43, make the upper end of this chimeric claw 43 snap in above-mentioned embeded slot 15 connecting board sheet 40.

At this, as mentioned above, the height dimension of the flank 115 of the outer end portion by will constituting bottom embeded slot 116 is set for and is lower than the double-deck limit of supporting portion 122 slightly, and the inside part of flank 115 formed the tilted shape that relatively relaxes, can be easily the chimeric following portion 45 of connecting board sheet 40 be snapped in bottom embeded slot 116.

Like this, the structure of long size element for suspending ceiling 101 that is connected in series second embodiment is identical with above-mentioned first embodiment, omits its detailed description.And, make long size element for suspending ceiling 101 perpendicular configuration also identical (with reference to Figure 10,11) with above-mentioned first embodiment, omit its detailed description.

And, identical with the first above-mentioned embodiment, leaving predetermined distance ground by the long size element for suspending ceiling 101 that utilizes the fixing long size element for suspending ceiling 101 that keeps orthogonal to connect plate 60 respectively to be connected in series connects, long size element for suspending ceiling 101 is formed grid shape, on its fastening protrusion 12, fixedly install suspension hook (omitting diagram).Ceiling p supports its ends, four limits, is mounted respectively on the tetragonal opening that is surrounded by long size element for suspending ceiling 101 (with reference to Figure 17) with this by the double-deck limit of the supporting portion 122 of long size element for suspending ceiling 101.

As mentioned above, under the state that ceiling p has been installed, because the deadweight of this ceiling p, in the double-deck limit of supporting of each long size element for suspending ceiling 101 one 122, the tilt distribution load that increases gradually towards the outer end at its width, negative load acts on.Because this tilt distribution load, on long size element for suspending ceiling 101, load (stress) concentrates on the sweep that connects this horizontal holding section 113 and vertical edges portion 11 easily, and this horizontal holding section 113 is acted on downwards agley.

For such tilt distribution load, long size element for suspending ceiling 101 carries out clamping and the horizontal holding section 113 of supporting by supporting double-deck limit portion 122 and the following portion 21 of supporting.Certainly also support according to the rigidity and the intensity of horizontal holding section 113.As mentioned above, the exterior lateral area 113a of the horizontal holding section 113 of the double-deck limit of the supporting of the long size element for suspending ceiling 101 of this second embodiment portion 122 supportings.Therefore, compare, support the bearing area that 122 clampings of double-deck limit portion support following portion 21 and dwindle, have the trend that the power of the double-deck limit of the supporting portion horizontal holding section 113 of 122 maintenances reduces with above-mentioned first embodiment.But, because horizontal holding section 113 is formed with flank 115, therefore, to compare with the horizontal holding section 13 of above-mentioned first embodiment, its rigidity and intensity increase.Can bring into play fully by these combinations generally and bear the intensity that makes the crooked load in horizontal holding section 113 because of above-mentioned tilt distribution load downwards.

And the long size element for suspending ceiling 101 of this second embodiment is identical with the first above-mentioned embodiment, not only for static load, also very outstanding for fatigue strength that repeats to load and fatigue life.Therefore, can support ceiling p steadily in the long term, simultaneously, even because of earthquake etc., strong stress concentrate under the local situation, the deformation effect that suppresses horizontal holding section 113 is also very good, can bring into play high safety.

Like this, in this second embodiment, the rigidity and the intensity that form by the flank 115 that improves by horizontal holding section 113 compensate the reduction amount that reduces the confining force of the dual limit of the supporting portion 122 that produces because of the bearing area of horizontal holding section 113, have identical with above-mentioned first embodiment, with respect to static load with repeat to load and bring into play the action effect of high strength and durability.

And, in this second embodiment, compare with the structure (Fig. 1 or other routine Figure 12) of above-mentioned first embodiment, shortened the width dimensions that supports dual limit portion 122.That is, compare, can reduce the unit consumption (usable floor area) of the color steel sheet that is used to form fastening beam 103 with first embodiment.Therefore, suppose to reduce the use amount of steel steel plate and the use amount of coating, can reduce its fabricating cost making under the situation of using color steel sheet.And, under the situation of buying color steel sheet, can reduce buying expenses.In addition, the fabricating cost of color steel sheet or buying expenses are because the expense of its coating be the comparison costliness with needing consummate application techniques.Therefore, reduce the fabricating cost of color steel sheet or the fabricating cost that buying expenses helps to reduce long size element for suspending ceiling 101 very much, can improve the competitiveness of product in market significantly.

And the long size element for suspending ceiling 101 of this second embodiment is formed for the bottom embeded slot 116 of chimeric above-mentioned connecting board sheet 40 by the flank 115 and the gap of vertical edges portion 11.And,, therefore can form the groove depth of bottom embeded slot 116 more deeply because the projecting height of flank 115 is lower slightly than the double-deck limit of supporting portion 122.Only shallow slightly than the bottom embeded slot 16 of the first above-mentioned embodiment, but darker than the bottom embeded slot 86 (with reference to Figure 19) of existing structure.By like this, also first embodiment with above-mentioned is identical for this second embodiment, since keep the effect of chimerism of connecting board sheet 40 very good, improved the effect that keeps the state that is connected in series, therefore can suppress to remove the situation of connection status because of the vibrations of earthquake etc.

At this, as mentioned above,, therefore when connecting board sheet 40 is installed, easily its lower end is snapped in bottom embeded slot 116 because flank 115 forms the shape that its inner end is tilted sleekly.And, carrying out this when snapping in, be not easy to damage the lower end of flank 115 and connecting board sheet 40.And, when making connecting board sheet 40, also be not easy to damage its lower end and bottom embeded slot 116 to horizontal slip.

In addition, under the situation of using the connecting board sheet 40 identical with present embodiment, in order easily to snap in the lower end of this connecting board sheet 40, the projecting height of flank 115 is preferably smaller or equal to the thickness that supports double-deck limit portion 122.But as mentioned above, owing to load ceiling p in the double-deck limit of supporting portion 122, therefore, in case flank 115 is higher than the double-deck limit of supporting portion 122, then the supporting of this ceiling p is not easy to stablize.Therefore, flank 115 is smaller or equal to the thickness aim according to the invention of the double-deck limit of supporting portion 122.

As mentioned above, in a second embodiment,,, also can be vertically to leave the structure that predetermined distance ground forms flank as other structure by horizontal holding section 113 bending machining are become the chevron section and form flank 115 along the longitudinal.For example, form the long size element for suspending ceiling of holding bar that hangs with flank of forming specific length at regular intervals discontinuously.This flank can be by carrying out the following shape that processes, that is, the metal pattern of regulation shape is closed in the portion by being pressed in horizontal card, so that it is outstanding upward.The rigidity and the intensity of holding section because this structure also can be improved the standard, therefore the double-deck limit of the supporting portion of fastening beam is set by the mode with the exterior lateral area that covers this horizontal holding section, can and repeats load with respect to the static load that acts on this long size element for suspending ceiling, bring into play high strength and durability in the same manner with above-mentioned second embodiment.

The present invention is not limited to the above embodiments, can suitably use in aim scope of the present invention.For example, in first embodiment, make to hang and hold bar 2 and fastening beam 3 incorporate manufacturing processes, make to hang and hold bar 102 and fastening beam 103 incorporate manufacturing processes in a second embodiment, except above-mentioned manufacturing procedure, can be shaped by various manufacturing procedures.

Claims (4)

1. a long size element for suspending ceiling is characterized in that, have section and be section that hanging of inverted T-shape hold bar and lower opening and be the fastening beam of コ font roughly,

Described hanging held bar and had: the vertical edges portion of above-below direction is arranged on the upper end of this vertical edges portion, the fixedly fastening protrusion of the wide cut of suspension hook, and the horizontal holding section of extending to two foreign sides from the lower end of vertical edges portion;

Described fastening beam has: be attached to the portion of supporting bottom of hanging below the level engaging portion of holding bar and the double-deck limit of the supporting portion of double panel structure, this support double-deck limit portion from two outboard ends that support following portion turn back, with cover horizontal holding section above mode inwardly extend the side, and then turn back to foreign side extend, stacked and form, support double-deck limit portion and supporting the horizontal holding section of clamping between the following portion, simultaneously, described fastening beam also has side portion, and this side portion is extended downwards by the outer end of supporting double-deck limit portion and formed from each.

2. long size element for suspending ceiling as claimed in claim 1 is characterized in that, has top embeded slot and bottom embeded slot, hangs the section that the fastening protrusion of holding bar forms rectangular ring, and the top embeded slot in its lower section, form along the longitudinal; The inner of the double-deck limit of the supporting of fastening beam portion with hang between the vertical edges portion of holding bar and form the gap, the bottom embeded slot forms by this gap, makes the upper and lower end parts of connecting board sheet of the side that is fastened on vertical edges portion and top embeded slot and bottom embeded slot chimeric.

3. long size element for suspending ceiling as claimed in claim 1, it is characterized in that, hang and hold bar and on position its horizontal holding section, leave predetermined distance to foreign side from vertical edges portion, be formed with outstanding upward flank along buckling, the double-deck limit of the supporting portion of fastening beam is set in the mode of the exterior lateral area of the flank that covers horizontal holding section simultaneously.

4. long size element for suspending ceiling as claimed in claim 3, it is characterized in that, hang the section that the fastening protrusion of holding bar forms rectangular ring, have along the longitudinal the top embeded slot that forms in its lower section, the bottom embeded slot that the gap of the upper and lower end parts of the connecting board sheet that engages with the side of vertical edges portion and this top embeded slot and the flank by vertical edges portion and horizontal holding section is constituted is chimeric.

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