JP2011157727A - Fall preventing facility from roof in temporary scaffold - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fall preventive facility capable of effectively preventing a worker from sliding down a roof. <P>SOLUTION: Safety handrails 10 each comprising braces 7, 8 crossing each other in X-shape and a horizontal rod 9 pivotally connected between the upper ends of both braces 7, 8 is installed between the adjacent struts 1, 1 of a temporary scaffold which is vertically assembled so that the struts 1 are higher than the eaves N of a roof R on the upper side of an eaves height position NL. A fall preventive curing frame 16 comprising a lower horizontal frame 11 which is disposed along the lower-side of a lower side triangular space part b among the upper and lower side triangular space parts a, b which are formed of both braces 7, 8 of the installed safety handrail 10 and which comprises insertion fittings 14, 15 at both ends, an upper horizontal frame 12 which is disposed at the lower position than the crossing part k of both braces 7, 8, and a plurality of vertical frames 13 are disposed between the struts 1, 1. The insertion fittings 14, 15 at both ends of the lower horizontal frame 11 of the fall preventive curing frame 16 are inserted into and attached to fitting insertion parts S at the bottom end attachment positions of the braces 7, 8 for attaching to both struts 1, 1. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a fall prevention facility provided in a wedge-tightened temporary scaffold in order to prevent a fall accident such that an operator passes through the roof when working on the roof of a building.

  In wooden detached houses, since the site where the scaffolding is installed is narrow and the shape of the building is complex, it is easy to change and reassemble, and wedge-tightened scaffolding is used as a scaffold that can easily accommodate the shape of the building. . In this scaffold, a pillar having a flange member or pocket member provided at regular intervals is erected, and a bracket with a tightening portion is fastened to the flange member or pocket member of the pillar with a wedge, and the bracket is placed between the opposing brackets. It will be temporarily constructed with a scaffolding board. As a measure to prevent the worker from falling during a new construction or renovation in a detached house with a sloping roof, a wedge-locked scaffold, which is an external work platform, protrudes higher than the eaves of the roof, and a handrail and a middle rail Standards for assembly and use of temporary housing for wedge-bonded housing construction by the Temporary Industry Association, with the height of the handrails set to 75cm or more from the height of the eaves and the distance between the eaves and the column to 30cm Is shown in In addition, as another measure for installing the middle rail, the installation of a safety handrail (a preceding handrail) having cross bars where the crosspieces cross in an X shape is also used as an effective method for preventing the fall.

  FIG. 16 shows the construction of a conventional wedge-tight temporary scaffolding having a fall prevention facility for new construction or renovation of a detached house. That is, in this construction, first, as shown in (a-1) and (a-2), before the building W as shown in (c-2) of FIG. The support columns 1 for wedge-tightened scaffolds that stand upright so that the upper part protrudes about 75 cm to 100 cm higher than the height of the eaves N of the roof of the building W are arranged side by side at predetermined intervals. Using the flange members with wedge holes attached at predetermined intervals in the longitudinal direction, the scaffolding plate receiving bracket 2 is attached in a plurality of stages, and the scaffolding plate 3 is bridged between the opposing brackets 2 and 2, Then, the worker M gets on the upper scaffolding plate 3 and attaches the handrail horizontal member 41 and the middle rail 42 to the lower side thereof between the adjacent columns 1 and 1 to assemble the temporary scaffold. FIG. 16 shows only the uppermost scaffolding plate receiving bracket 2 and the scaffolding plate 3 spanning the scaffolding plate receiving bracket 2. In this case, the height Q from the uppermost scaffold plate 3 to the eaves line NL is 1800 to 1900 cm.

  After assembling the scaffold as described above, as shown in (b-1) and (b-2), between the adjacent struts 1 and 1, the horizontal material is positioned along the roof eave line NL. 43, for example, by handing the horizontal material 44 for handrails to a position 75 cm above the eaves line NL, and the intermediate rail 45 in the middle between these positions, respectively, by the operator M climbing over the column 1 ( c-1) and (c-2) are provided with fall prevention equipment.

  However, the pitch of the flange member or the pocket member with the wedge hole for attaching the wedge provided on the support column 1 of the wedge-tightening type scaffold is relatively wide as 45 cm to 47.5 cm, and the mounting interval is determined by the position of the wedge binding portion. In the middle rail 45, it is said that the gap is slightly wide as a fall prevention fence for the worker M, and although not shown in FIG. 16, the brace is also used in the safety handrail having the cross braces where the cross members cross in an X shape. Large triangular spaces were formed below and on both sides of the intersection where the two crossed, and the opening space was relatively narrow, but it was not psychologically sufficient.

  An object of this invention is to provide the fall prevention equipment which can prevent the operator's sliding from a roof effectively in view of said situation.

  Means for solving the above problems will be described with reference numerals in the embodiments described later. The apparatus for preventing fall from the roof in the temporary scaffolding of the invention according to claim 1 is the eaves N of the roof R of the support column 1. A pair of braces 7 and 8 that intersect in an X shape and the upper ends of both braces 7 and 8 are pivotally connected between adjacent struts 1 and 1 of a temporary scaffold that is erected and assembled to be higher. A safety handrail 10 composed of a horizontal rod 9 is bridged between the roof eaves height position NL and a required height position above the roof eaves height position NL. The lower horizontal frame 11 which is disposed along the lower side of the lower triangular space portion b of the upper and lower triangular space portions a and b to be formed, An upper horizontal frame 12 disposed at a position below the intersection k of the braces 7 and 8; A fall prevention curing frame 16 composed of a plurality of vertical frames 13 connecting the lower horizontal frames 11 and 12 is arranged between the adjacent columns 1 and 1, and both ends of the lower horizontal frame 11 of the fall prevention curing frame 16 are inserted. The metal fittings 14 and 15 are characterized by being inserted and attached to the metal fitting insertion portions S provided at the lower end attachment positions of the braces 7 and 8 with respect to the both supports 1 and 1, respectively.

  The second aspect of the present invention is the facility for preventing fall from the roof in the temporary scaffold according to claim 1, wherein one of the fittings 14, 15 provided at both ends of the lower horizontal frame 11 of the fall prevention curing frame 16 is inserted. The bracket 14 includes a hook 17 that can be freely engaged and disengaged from above with respect to the bracket insertion portion S of one column 1, and the other insertion bracket 15 is inserted into the bracket insertion portion S of the other column 1 from above. It is characterized by comprising a detachable U-shaped frame piece 18 and a retaining lock gravity lock piece 19 attached to the opening end of the U-shaped frame piece 18.

  Claim 3 is the fall prevention equipment from the roof in the temporary scaffold according to claim 1, and the insertion fittings 14, 15 provided at both ends of the lower horizontal frame 11 of the fall prevention curing frame 16 are both struts. It comprises a U-shaped frame piece 18 that can be inserted and removed from above with respect to one metal fitting insertion part S, and a gravity lock piece 19 for retaining that is attached to the open end of the U-shaped frame piece 18. And

  Claim 4 is the fall prevention equipment from the roof in the temporary scaffold according to any one of claims 1 to 3, wherein the fitting insertion portion S is provided at the lower end of the brace 7 and 8 of the safety handrail 10, respectively. A triangular space formed on the inner side of the reinforcing piece 28 bridged to the inner corner of the mounting piece 27 in the fixing bracket 24 and the U-shaped member 25 straddled over the flange member 4 of the column 1 It is characterized by comprising.

  Claim 5 is the fall prevention equipment from the roof in the temporary scaffold according to any one of claims 1 to 4, wherein the metal fitting insertion portion S includes a wedge hole 4 a of a flange member provided in the column 1. It is characterized by.

  Claim 6 is the fall prevention equipment from the roof in the temporary scaffold according to any one of claims 1 to 4, wherein the metal fitting insertion portion S is composed of a pocket 22 a of a pocket member 22 provided in the column 1. It is characterized by.

  The effect of the invention by the above solution will be described with reference numerals of the embodiments described later. According to the fall prevention equipment of the invention according to claim 1, the eaves height position of the roof R and the requirements above it. A triangular space portion b formed below the intersection k where the braces 7 and 8 of the safety handrail 10 spanned between the adjacent struts 1 and 1 adjacent to the height position intersect, and the intersection k Since the opening of the lower half of the safety handrail 10 is narrowed by the fall prevention curing frame 16 in the triangular space portions c and d formed on both sides, the worker M working on the roof R slides his / her foot. Even if it happens, you can have a sense of security that these safety handrails 10 and the fall prevention curing frame 16 will always accept them, and you can actually drop them with these safety handrails 10 Work from eaves N by prevention curing frame 16 It can be effectively prevented from falling M.

  As in the invention according to claim 2, one insertion fitting 14 of the insertion fittings 14, 15 provided at both ends of the lower horizontal frame 11 of the fall prevention curing frame 16 is a fitting insertion portion of one support column 1. A U-shaped frame piece 18, which comprises a hook 17 detachable from above with respect to S, and the other insertion fitting 15 is detachable from above with respect to the fitting insertion portion S of the other support column 1. In the case of comprising a retaining gravity lock piece 19 attached to the lower part of the frame piece 18, one of the insertion fittings 14 is inserted into the fitting attachment provided at the lower end attachment position of the brace 7 with respect to the one column 1. After inserting into the part S, if the other insertion metal fitting 15 is inserted into the metal fitting insertion part S provided at the lower end attachment position of the brace 8 with respect to the other column 1, this insertion metal fitting 15 is removed by the gravity lock piece 19. Because it is locked, both ends of the lower horizontal frame 11 Single easily fixed to both struts 1,1, it is possible to reliably fix the entire drop preventing aging frame 16 for both struts 1,1.

  As in the invention according to claim 3, the insertion fittings 14 and 15 provided at both ends of the lower horizontal frame 11 of the fall prevention curing frame 16 are both inserted into and removed from the fitting insertion portion S of the column 1 from above. In the case of comprising a free U-shaped frame piece 18 and a retaining gravity lock piece 19 attached to the lower part of the U-shaped frame piece 18, the fall-preventing curing frame 16 as a whole is more than the both supports 1, 1. It can be fixed more reliably.

  As described in claim 4, the metal fitting insertion portion S is not specially formed, and the mounting portion piece 27 and the support column in the fixing metal fitting 24 provided at the lower ends of the braces 7 and 8 of the safety handrail 10 are provided. The triangular space formed inside the reinforcing piece 28 that is bridge-connected to the inner corner of the U-shaped member 25 straddling the flange member 4 can be used as it is.

  As described in claim 5, the metal fitting insertion portion S can use the wedge hole 4 a of the flange member provided in the support column 1 as it is without being specially formed.

  As described in claim 6, the metal fitting insertion portion S can use the pocket 22 a of the pocket member 22 provided in the support column 1 as it is without being specially formed.

The front stage of construction of the fall prevention equipment concerning the present invention is shown, (a) is a front view, and (b) is a side view. The first stage of construction of the fall prevention equipment is shown, (a) is a front view and (b) is a side view. It shows the second stage of construction of the fall prevention equipment, (a) is a front view and (b) is a side view. It shows the state after the installation of the fall prevention equipment, (a) is a front view, (b) is a side view. (a) is a front view showing a fall prevention curing frame of the fall prevention equipment, (b) is an enlarged view of a portion indicated by arrow A in (a), and (c) is an enlarged view of a portion indicated by arrow B in (a). (D) is a plan view of the portion indicated by (b), and (e) is a plan view of the portion indicated by (c). (a) is a front view which shows the use state of the fall prevention equipment in case the flange member is provided in the support | pillar, (b) is a bottom view. (a) is a front view which shows the use state of the fall prevention equipment when a pocket member is provided on the support column, and (b) is a bottom view. (a) is the enlarged view of the part shown by the arrow C of (a) of FIG. 6, (b) is a bottom view of the part. (a) is an enlarged view of a portion indicated by an arrow D in FIG. 7 (a), and (b) is a bottom view of the same portion. It is a perspective view which shows the state which has inserted and attached the one end side insertion metal fitting of the lower horizontal frame of the fall prevention curing frame to the metal fitting insertion part of a support | pillar. It is a perspective view which shows the state which inserts and attaches the other end side insertion metal fitting of the lower horizontal frame of a fall prevention curing frame to the metal fitting insertion part of a support | pillar. (a) is a front view showing a modified example of the fall prevention curing frame, (b) is an enlarged view of a portion indicated by an arrow E in (a), (c) is an enlarged view of a portion indicated by an arrow F in (a), (d) is a plan view of (b), and (e) is a plan view of (c). (a) is a front view showing still another modified example of the fall prevention curing frame, (b) is an enlarged view of a portion indicated by an arrow G in (a), and (c) is an enlarged view of a portion indicated by an arrow H in (a). (D) is a plan view of a portion indicated by (b), and (e) is a plan view of a portion indicated by (c). (a) And (b) is a front view which shows the use condition of the fall prevention equipment which has another fall prevention curing frame, respectively. Furthermore, it is a front view of the use condition of the fall prevention curing frame which has another fall prevention curing frame. It is explanatory drawing which shows the construction order of the conventional fall prevention equipment, (a-1) is a front view showing the pre-construction stage, (a-2) is a side view, (b-1) is the first stage of construction. (B-2) is a side view, (c-1) is a front view showing the second stage of construction, and (c-2) is a side view.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the drawings. FIGS. 1 to 4 show the construction of a fall prevention facility in a wedge-tightened scaffold according to the present invention. Is a front view showing the previous stage of construction, (b) is a side view thereof, (a) in FIG. 2 is a front view showing the first stage, (b) is a side view thereof, and (a) in FIG. The front view which shows a step, (b) is the side view, (a) of FIG. 4 is a front view of a construction completion state, (b) is the side view. The struts 1 shown in these figures are flange-type wedge-type scaffolding struts, and flange members 4 are attached to the struts 1 at regular intervals in the vertical direction. As shown in (b), four wedge holes 4a are provided at intervals of 90 ° in the circumferential direction. In addition, as shown in FIGS. 7 and 9, the pocket-type wedge-bound scaffolding struts include four rectangular tube-like pocket members 22 on the front, rear, left and right of each portion at regular intervals in the vertical direction. As shown in FIGS. 9 (a) and 9 (b), the four rectangular tubular pocket members 22 at each location were attached to the pair of front and rear pocket members 22 and 22 in a stepped manner. It consists of a pair of left and right pocket members 22, 22, and each pocket member 22 has a pocket 22 a inside thereof.

  When constructing the wedge-tightening type scaffolding prevention equipment according to the present invention, first, as shown in FIGS. 1 (a) and 1 (b), before the building W as shown in FIG. 4 (b) is erected. In addition, the supporting column 1 for the wedge-binding type scaffolding 1 is erected so that the required number of the supporting columns 1 are added and the upper part protrudes about 75 cm to 100 cm higher than the height position of the roof eaves N of the building W (the eaves line is indicated by NL). The scaffolding plate receiving brackets 2 are mounted in a plurality of stages by using flange members 4 with wedge holes that are juxtaposed at predetermined intervals and are attached to the columns 1 at predetermined intervals in the longitudinal direction. The scaffolding plate 3 is bridged between the opposing brackets 2 and 2 of the supporting columns 1 and 1, and the worker M rides on the scaffolding plate 3, the horizontal material 5 for the handrail, and the middle rail 6 below it. Assembling a temporary scaffold by attaching between adjacent struts 1 and 1 . 1 to 4 show only the upper side scaffolding plate receiving bracket 2 and the upper stage side scaffolding plate 3 bridged over the upper side scaffolding plate receiving bracket 2. In this case, the height Q from the upper stage side scaffolding board 3 to the eaves line NL is 1800 cm to 1900 cm.

  After assembling the temporary scaffold in this way, construction of the fall prevention equipment according to the present invention is started. That is, as shown in FIGS. 2 (a) and 2 (b), between the adjacent struts 1 and 1, a pair of braces 7, 8 crossing in an X shape and a pivot between the upper ends of both braces 7, 8 are supported. The safety handrail 10 composed of the connected horizontal rods 9 is separated from the eaves height position (eave edge line NL) of the roof R by 75 cm, for example, by using the flange member 4 with a wedge hole of the column 1. Bridge between positions. It is arranged along the lower side of the lower triangular space portion b of the upper and lower triangular space portions a and b formed by the two bracings 7 and 8 of the safety handrail 10 thus spanned, and both ends thereof. A plurality of lower horizontal frames 11 provided with insertion metal fittings 14 and 15, an upper horizontal frame 12 disposed at a position lower than the intersection k of both braces 7 and 8, and a plurality of upper and lower horizontal frames 11 and 12. The fall prevention curing frame 16 constituted by the vertical frame 13 is arranged between the adjacent columns 1 and 1 as shown in FIGS. 3 (a) and 3 (b), and both ends of the lower horizontal frame 11 are inserted. 14 and 15 are attached to the metal fitting insertion portion S (shown in detail in FIG. 8 (a), FIG. 10 and FIG. 11) provided at the lower end attachment position of the braces 7 and 8 with respect to both supports 1 and 1. Insert and install each, and complete the installation of the fall prevention equipment as shown in Fig. 4 (a) and (b).

  According to the fall prevention equipment constructed as described above, as shown in FIGS. 4 (a), 4 (b) and FIG. 6, the height position of the eaves of the roof R (the eaves line NL) and the requirements above it. A triangular space portion b formed below the intersection k where the braces 7 and 8 of the safety handrail 10 spanned between the adjacent struts 1 and 1 adjacent to the height position intersect, and the intersection k Since the opening of the lower half of the safety handrail 10 is narrowed by the fall prevention curing frame 16 in the triangular space portions c and d formed on both sides, the worker M working on the roof R slides his / her foot. Even if there is such a thing, it is possible to have a sense of security that the safety handrail 10 and the fall prevention curing frame 16 always receive it, and it is possible to have a sense of security. Effective prevention of worker M from eaves N by preventive curing frame 16 It is possible to prevent manner.

  Further, in the construction of the fall prevention equipment, as shown in FIGS. 2 and 3, the operator M also places the fall prevention curing frame 16 when the safety handrail 10 is bridged between the adjacent columns 1 and 1. Since the attachment work can be performed on the scaffolding plate 3 on the upper stage side even when it is bridged, the safety of the attachment work can be ensured.

  Next, a specific structure of the constituent members of the fall prevention equipment, a mounting method thereof, and deformation modes of the constituent members will be described with reference to FIGS.

  FIG. 5 (a) shows a fall prevention curing frame 16, which includes a lower horizontal frame 11 made of steel pipe provided with insertion fittings 14 and 15 at both ends, and the lower horizontal frame. 11 is made of a steel pipe having a diameter larger than that of the lower horizontal frame 11 and having a length longer than that of the lower horizontal frame 11 and a steel pipe having the same diameter as that of the lower horizontal frame 11. A plurality of vertical frames 13 connecting the horizontal frames 11 and 12a are integrally formed. In this fall prevention curing frame 16, the steel pipe diameter of the upper horizontal frame 12 is made larger than the steel pipe diameter of the lower horizontal frame 11. This is because a steel pipe having a diameter corresponding to the interval between the two braces 7 and 8 is selected so as not to rattle between the braces 7 and 8 when sandwiched between 10 pairs of braces 7 and 8. This is because the lower horizontal frame 11 can be reduced in cost and weight by using a steel pipe having a smaller diameter than the steel pipe having the same diameter as that of the upper horizontal frame 12. In addition, as described above, the diameter of the upper horizontal frame 12 is set to a diameter corresponding to the distance between the pair of braces 7 and 8 that intersect at the time of attachment, so that rattling can be prevented and the operator's anxiety is reduced. The occurrence of metal noise occurring between the braces 7 and 8 can be prevented.

  An insertion fitting 14 provided at one end of the lower horizontal frame 11 of the fall prevention curing frame 16 is a lower end of one brace 7 of the safety handrail 10 as shown in FIGS. 5 (b) and 5 (d). It consists of a downward C-shaped hook 17 that can be engaged and disengaged from above with respect to a metal fitting insertion portion S (see FIG. 10), which will be described later, provided on the side. As shown in FIGS. 5C and 5E, the other insertion fitting 15 provided at the other end portion of the lower horizontal frame 11 is a fitting difference described later provided on the lower end portion side of the other brace 8. A U-shaped frame piece 18 that can be inserted and removed from above with respect to the insertion portion S (see FIG. 11), and a retaining lock gravity lock piece 19 attached to the opening end of the U-shaped frame piece 18. The U-shaped frame piece 18 is formed in a downward U-shape with an angle piece 20 having one end fixed to the other end of the lower horizontal frame 11 and a cylindrical member 21 connected to the tip of the angle piece 20. It is formed to make. As shown in FIGS. 5C and 5E, the gravity lock piece 19 is pivotally attached to the lower end portion of the cylindrical member 21, and normally closes the open end portion of the U-shaped frame piece 18 by its own weight. When the U-shaped frame piece 18 is inserted into the corresponding fitting insertion portion S from above, it is lifted by a part of the fitting insertion portion S, and the broken line in FIG. After the U-shaped frame piece 18 has been inserted into the metal fitting insertion part S after being temporarily stored in the cylindrical member 21 from the opening groove 21a of the cylindrical member 21, as shown in FIG. The open end of the frame piece 18 is closed.

  As shown by the phantom line in FIG. 6 or 7, the safety handrail 10 includes a pair of braces 7 and 8 that intersect in an X shape, and a horizontal rod 9 that is pivotally connected between the upper ends of both braces 7 and 8. As shown in FIG. 6, the wedge hole of the flange member 4 provided on the support column 1 is provided at the distal end side of the pivot connecting portions 32 and 33 between the both ends of the horizontal rod 9 and the braces 7 and 8. 4 is provided, or as shown in FIG. 7, a hooking piece 23 is provided to be hooked on the pocket 22a of the pocket member 22 provided on the column 1, and at the lower end of each brace 7, 8, there is a column. A fixing bracket 24 is provided that is fixed to the flange member 4 or the pocket member 22 in a wedge-tight manner. The safety handrail 10 can be folded so that both braces 7 and 8 follow the horizontal rod 9 before installation.

  As shown in FIGS. 10 and 11, each fixing bracket 24 is attached to the lower end of each brace 7, 8 via an attachment piece 27, and the pocket member 4 (or the pocket as shown in FIG. 9) of the column 1. The U-shaped member 25 which can be straddled over the member 22), and the upper and lower through holes 25a of the U-shaped member 25 from above the U-shaped member 25 straddled over the flange member 4 (or pocket member 22) (FIG. 10). 11 and only the lower through-hole 25a is shown) and the wedge 26 which is driven through the wedge hole 4a (or the pocket 22a of the pocket member 22) in the vertical direction. A plate-like reinforcing piece 28 is bridge-connected to the inner corner with the rear face of the letter-shaped member 25, and provided at both ends of the lower horizontal frame 11 of the fall prevention curing frame 16 inside the reinforcing piece 28. To insert the inserted fittings 14 and 15 Forming a metal insertion portion S of the plan view triangle.

  In order to bridge the safety handrail 10 having the above-described configuration between the adjacent columns 1 and 1, as shown in FIG. 2, an operator M who rides on the upper scaffolding plate 3 puts both braces 7 and 8 on one side. While being lifted up one by one, the hooking piece 23 on the upper end side of the braces 7 and 8 is hooked into the wedge hole 4a of the flange member 4 provided in the column 1 as shown in FIG. In the case of the wedge binding type scaffolding column 1, the horizontal rod 9 is hooked on the pocket 22 a of the pocket member 22 provided on the column 1 as shown in FIGS. 1, the fixing bracket 24 at the lower end of each brace 7, 8 is attached to the required flange member 4 below each strut 1 (in the case of a pocket-type wedge-tightened scaffold strut 1, the pocket of the strut 1 Secure to member 22).

  When the fixing bracket 24 is attached, when the flange member 4 is provided with the flange-type wedge-fastening scaffolding column 1 and the flange member 4 is provided on the column 1, as shown in FIGS. 8 (a) and 8 (b), The member 25 may be straddled over the flange member 4 and the wedge 26 may be driven in the vertical direction across the through hole 25a (see FIGS. 10 and 11) of the U-shaped member 25 and the wedge hole 4a of the flange member 4. Further, in the case of the pocket-type wedge-supported scaffolding column 1 and the column member 22 is provided on the column 1, the U-shaped member 25 is replaced with the pocket member 22 as shown in FIGS. The wedge 26 may be driven in the vertical direction across the through hole 25a of the U-shaped member 25 and the pocket 22a.

  Moreover, after attaching the safety handrail 10 as mentioned above, the fall prevention curing frame 16 is bridged between the struts 1 and 1 facing each other. When the fall-preventing curing frame 16 is bridged between the support columns 1 and 1 provided with the flange member 4, as shown in FIGS. 6 and 8, the safety handrail 10 is located at the lower end of the two braces 7 and 8. Since the fixing brackets 24 and 24 are attached to the flange members 4 and 4 so as not to interfere with each other when the two braces 7 and 8 cross each other, they are attached to the flange members 4 and 4. It will be in a state of being sandwiched by both muscle crossings 7 and 8 below the portion k. That is, as shown in FIGS. 6 (b) and 8 (b), the flange member 4 of the support column 1 is provided with four wedge holes 4a, and the two braces 7 and 8 of the drop curing frame 16 are formed. The fixing bracket 24 at the end of one brace 7 is a wedge hole at a position away from a virtual center line (not shown) connecting the axial centers of the opposing struts 1 and 1 in either the inside or outside direction, for example, inward. The fixing bracket 24 attached and fixed to 4a and at the end of the other brace 8 is attached and fixed to the wedge hole 4a located outwardly from the imaginary center line, whereby FIG. As shown in (b), the drop curing frame 16 is sandwiched between the two braces 7 and 8.

  After placing the fall prevention curing frame 16 on the lower side between the opposing columns 1, 1, the downward C-shaped insertion fitting 14 at one end of the lower horizontal frame 11 is attached to the flange member 4 of one column 1. Insert the metal fitting 15 at the other end of the lower horizontal frame 11 into the flange member 4 of the other support column 1 after inserting it into the metal fitting insertion part S (see FIG. 10) of the fixed metal fitting 24 that is fixed. It inserts in the metal fitting insertion part S (refer FIG. 11) of the fixed metal fitting 24 currently fixed. The insertion fitting 15 on the other end side of the lower horizontal frame 11 returns to a horizontal posture by its own weight after the U-shaped frame piece 18 is inserted into the fitting insertion portion S, and closes the opening end of the U-shaped frame piece 18. Since it is locked by the gravity lock piece 19, both ends of the lower horizontal frame 11 are fixed to the both columns 1, 1, and the entire fall prevention curing frame 16 is fixed to the both columns 1, 1. Further, in this case, the fall prevention curing frame 16 is sandwiched between the crossed braces 7 and 8 of the safety handrail 10, so that it is installed more stably.

  Further, when the fall prevention curing frame 16 is bridged between the support columns 1 and 1 provided with the pocket members 22, as shown in FIGS. 9 (a) and 9 (b), one end portion of the lower horizontal frame 11 is provided. Is inserted into a pocket 22a of a predetermined pocket member 22 on one strut 1, and then the plug 15 on the other end of the lower horizontal frame 11 is What is necessary is just to insert in the pocket 22a of the pocket member 22. FIG. In this case, the metal fitting insertion part S for inserting the insertion metal fittings 14 and 15 becomes the pocket 22 a of the pocket member 22. In addition, the metal fitting insertion part S for inserting the metal fittings 14 and 15 in the case where the flange member 4 of the support column 1 is provided is provided at the inner corner portion of the mounting piece 27 and the U-shaped member 25 in the fixing metal 24. The triangular space formed inside the reinforcing piece 28 connected to the bridge is used. However, in the case of the support column 1 provided with the flange member 4, the required wedge hole 4a can be used as the metal fitting insertion portion S. In the case of the support column 1 provided with the pocket member 22, the pocket 22a can be used as it is as the metal fitting insertion part S as described above.

  Further, in the case of the pocket member 22, by fixing the lower end fixing brackets 24, 24 of the braces 7, 8 of the safety handrail 10 to the pocket 22a on the center side in the inner and outer directions, as shown in FIG. The fall prevention curing frame 16 may be disposed inside the braces 7 and 8 as shown by the solid line in the figure, and the both-end insertion fittings 14 and 15 of the lower horizontal frame 11 may be attached to the inner pocket 22a. Further, as shown in the phantom line in the figure, the both end insertion fittings 14 and 15 of the lower horizontal frame 11 may be attached to the inner pocket 22a by being arranged outside the braces 7 and 8. FIG. 7 shows the entire attachment state of the fall prevention curing frame 16 in the case of the pocket member 22.

  FIG. 12A shows a part of the fall prevention curing frame 16 shown in FIG. That is, in the fall prevention curing frame 16 shown in FIG. 5, the steel pipe diameter of the upper horizontal frame 12 is made larger than the steel pipe diameter of the lower horizontal frame 11, and the brace of the safety handrail 10 where the upper horizontal frame 12 intersects when installed. The steel pipe diameter of the upper horizontal frame 12 is set to a steel pipe having a diameter corresponding to the interval between the two bracings 7 and 8, that is, the lower horizontal frame so as not to rattle between the bracings 7 and 8 when sandwiched between 7 and 8 Although a steel pipe having a diameter larger than that of the steel pipe 11 is adopted, the drop-preventing curing frame 16 shown in FIG. 12A is a steel pipe having the same diameter as that of the lower horizontal frame 11 as the upper horizontal frame 12. The upper horizontal frame 12b is used instead of the steel tube having a diameter corresponding to the distance between the two braces 7 and 8 at the position where the upper horizontal frame 12b can be in contact with the braces 7 and 8 of the safety handrail 10 at the time of mounting. The ratchet short tube member 29 is fitted and fixed in place by welding. According to this, it is possible to prevent rattling with the braces 7 and 8 when the upper horizontal frame 12b is sandwiched between the braces 7 and 8, and the fall prevention curing frame 16 is entirely made of a steel pipe having a small diameter. Therefore, the cost can be reduced. In addition, about the insertion metal fittings 14 and 15, as shown to (b)-(e), it is the same structure as the fall prevention curing frame 16 shown in FIG.

  FIG. 13A shows still another embodiment of the fall prevention curing frame 16. That is, in the fall prevention curing frame 16 of the above-described embodiment, one of the insertion fittings 14 and 15 provided at both ends of the lower horizontal frame 11 is located above the fitting insertion portion S of the column 1. The hook 17 is more detachable, and the other insertion fitting 15 includes a U-shaped frame piece 18 that can be inserted and removed from above the fitting insertion portion S of the column 1 and a gravity lock piece 19 for retaining. However, in the fall prevention curing frame 16 of FIG. 13, both of the insertion fittings 14 and 15 have a U-shaped frame piece 18 that can be inserted and removed from above with respect to the fitting insertion portion S, and this U-shaped. It is assumed that it consists of a retaining gravity lock piece 19 attached to the lower part of the frame piece 18. The configurations of the U-shaped frame piece 18 and the gravity lock piece 19 are the same as those shown in FIGS. According to the fall-preventing curing frame 16 of FIG. 13, both the end fittings 14, 15 of the lower horizontal frame 11 are composed of the U-shaped frame piece 18 and the gravity lock piece 19. Can be more securely fixed to both the columns 1 and 1.

  14 (a), 14 (b), and 15 show still another embodiment of the fall prevention curing frame 16. FIG. The drop prevention curing frame 16 shown in FIG. 14 (a) has a length of the upper horizontal frame 12 shorter than that of the lower horizontal frame 11, and both end portions of the upper horizontal frame 12, and vertical frames 13 positioned at both ends. 13 is different from the drop-preventing curing frame 16 shown in FIGS. 1 to 13 described above in that the upper end portions of the 13 are integrally connected via the R-shaped connecting portions 31. In this case, the upper horizontal frame 12 has a length of about 85% of the lower horizontal frame 11. The drop-preventing curing frame 16 shown in FIG. 14 (b) has a point that an oblique frame 30 is interposed between the upper and lower horizontal frames 11 and 12 in addition to the vertical frame 13 and the fall-preventing curing frame shown in FIG. 14 (a). 16 and different. 15 is the same as the drop curing frame 16 shown in FIGS. 1 to 13 in terms of the length of the upper horizontal frame 12, and other than the vertical frame 13 between the upper and lower horizontal frames 11 and 12. Further, it is the same as the drop curing frame 16 shown in FIG.

  According to the fall prevention curing frame 16 as shown in FIGS. 14 (a) and 14 (b), the connecting portions 31 between the both ends of the upper horizontal frame 12 and the vertical frames 13 at both ends are formed in a round shape. It is possible to ensure safety without the person M catching fingers or clothes. Further, in the fall prevention curing frame 16 as shown in FIG. 14 (a), the whole frame has a compact and simple structure. According to the fall prevention curing frame 16 as shown in FIG. In addition, since the diagonal frame 30 is interposed, the opening of the lower half portion of the safety handrail 10 spanned between the opposing struts 1 and 1 is more effectively covered, and the fall prevention effect is psychologically enhanced. be able to.

  Further, in the fall prevention curing frame 16 according to the present invention, as shown in FIG. 4 (a), if the upper horizontal frame 12 is approximately the same as the length of the lower horizontal frame 11, the roof between the adjacent columns 1 and 1 is used. It is most desirable because it can more effectively close the opening of the lower half of the safety handrail 10 spanned between the eaves tip height position NL and the required height position above it. Even if the frame 12 is not as long as the length of the lower horizontal frame 11, the upper horizontal frame 12 is 70 of the lower horizontal frame 11 like the drop curing frame 16 of the embodiment shown in FIGS. 14 (a) and 14 (b). Even when it has a length of about 80%, the opening of the lower half of the safety handrail 10 can be sufficiently closed, and the shape that gives the worker M a sense of security also from the exterior, the roof The fall prevention effect of the worker M from the eaves N can be enhanced psychologically.

W Building R Roof N Roof eaves 1 Column 4 Flange member 4a Flanged member wedge holes 7 and 8 Safety handrail bracing 9 Horizontal bar 10 Safety handrail 11 Lower horizontal frame 12 Upper horizontal frame 13 Vertical frame 14, 15 Insertion bracket 16 Fall prevention curing frame 17 Hook 18 U-shaped frame piece 19 Gravity lock piece 22 Pocket member 22a Pocket of pocket member

Claims (6)

  Between adjacent struts of a temporary scaffolding that is erected so that the struts are higher than the eaves of the roof, from a pair of braces crossing in an X shape and a horizontal rod that is pivotally connected between the upper ends of both braces Of the upper and lower triangular spaces formed by crossing the safety handrail between the roof eaves height position and the required height position above it. The lower horizontal frame that is arranged along the lower side of the triangular space on the lower side and that is provided with fittings at both ends, the upper horizontal frame that is positioned below the intersection of both braces, and both the upper and lower sides A fall prevention curing frame consisting of a plurality of vertical frames that connect the frames is arranged between adjacent struts, and both end insertion fittings of the lower horizontal frame of this fall prevention curing frame are attached to the lower end portion of the bracing to both struts. To be inserted into the bracket insertion part provided in Fall prevention equipment from the roof in 設足 field.   One of the insertion fittings provided at both ends of the lower horizontal frame of the fall prevention curing frame is a hook that is detachable from above with respect to the fitting insertion portion of one column, and the other insertion The bracket is composed of a U-shaped frame piece that is detachable from above with respect to the bracket insertion portion of the other support column, and a retaining lock gravity lock piece attached to the opening end of the U-shaped frame piece. A facility for preventing fall from the roof in the temporary scaffolding according to 1.   The insertion fittings provided at both ends of the lower horizontal frame of the fall prevention curing frame are both U-shaped frame pieces that can be inserted and removed from above with respect to the metal fitting insertion portions of the column, and the open ends of the U-shaped frame pieces. The fall prevention equipment from the roof in the temporary scaffolding of Claim 1 which consists of a gravity lock piece for retaining which was attached to the part.   The metal fitting insertion part is a reinforcing part that is bridge-connected to the inner corner part of the mounting piece in the fixing metal provided at the lower end part of the brace of the safety handrail and the U-shaped member straddled on the flange member of the column. It consists of the triangular space part formed inside a piece, It is characterized by the above-mentioned.   The said metal fitting insertion part consists of a wedge hole of the flange member provided in the support | pillar, The fall prevention equipment from the roof in the temporary scaffold in any one of Claims 1-4.   The said metal fitting insertion part consists of a pocket of the pocket member provided in the support | pillar, The fall prevention equipment from the roof in the temporary scaffold in any one of Claims 1-4.

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