JP2014181459A - Suspending base metal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suspending base metal not easily coming off from C-shaped steel even when a large shake occurs on C-shaped steel in the event of an earthquake.SOLUTION: A suspending base metal 1 includes an upright plate part 3 having a hook part 2 hooked onto a lower lip part 10c of C-shaped steel 10 on an upper side, a lower plate part 4 bent and extended forward from a lower end of the upright plate part 3 and having a screw hole 4a for a ceiling suspending bolt 20, side plate parts 5,5 bent almost at a right angle and extended forward from right and left ends of the upright plate part 3, and right and left upper plate parts 6,6 bent almost at a right angle and extended outward from upper ends of the side plate parts 5,5 and having screw insertion holes 6a,6a respectively, and the upper plate parts 6,6 are fixed on a lower surface of a lower flange part 10a by a tapping screw 13 screwed into the lower flange part 10a of the C-shaped steel 10 through the screw insertion holes 6a,6a in the state of hooking the hook part 2 onto the lower lip part 10c of the C-shaped steel 10.

Description

  The present invention relates to a hanging metal fitting for hanging a ceiling hanging bolt attached to a C-shaped steel used in a roof purlin or the like.

  5 (a) and 5 (b) show a conventional hanging bracket 21. FIG. The hanging bracket 21 includes a standing plate portion 23 formed on the upper side with a latching portion 22 latched on the lower lip portion 10c of the C-shaped steel 10 used as a roof purlin, and the standing plate portion 23. And a lower plate portion 24 having a screw hole 24a to which the upper end portion of the ceiling suspension bolt 20 is screwed and attached. As shown in FIG. With the portion 22 hooked on the lower lip portion 10c of the C-shaped steel 10 from above, the upper end of the ceiling suspension bolt 20 is screwed into the screw hole 24a of the lower plate portion 24 from below and the upper end of the bolt 20 is connected to C. The shape steel 10 is attached so as to be pressed against the lower surface of the lower flange 10a.

  In the conventional suspension base 21 having a structure including the upright plate portion 23 in which the latching portion 22 is formed and the lower plate portion 24 bent forward from the lower end of the upright plate portion 23 as described above, When a large roll or pitch is generated in the C-shaped steel 10 at this time, the hooking portion 22 may come off from the lower lip portion 10c of the C-shaped steel 10 and the hanging metal fitting 21 may come off. Is a major cause of destruction and falling.

  In view of the above circumstances, an object of the present invention is to provide a hanging metal fitting that does not easily come off from a C-shaped steel even when a large shake occurs in the C-shaped steel at the time of occurrence of an earthquake.

  Means for solving the above problems will be described with reference numerals in the embodiments described later. The invention according to claim 1 is a suspension base for attaching to a C-shaped steel 10 used for a roof purlin or the like. It is a metal fitting, and the upright plate portion 3 formed on the upper side of the hook portion 2 hooked on the lower lip portion 10c of the C-shaped steel 10 is bent forward from the lower end of the upright plate portion 3, A lower plate portion 4 having a screw hole 4a for a ceiling suspension bolt, both side plate portions 5 and 5 that are bent and extended forward from the left and right ends of the upright plate portion 3 at substantially right angles, and both side plate portions 5 and 5 Each of the upper and lower plate portions 6 and 6 is bent and extended outward from the upper end at a substantially right angle and has screw insertion holes 6a and 6a, respectively. In the state of being hooked to 10c, the upper plate portions 6, 6 are connected to the lower flanges of the C-shaped steel 10 from the screw insertion holes 6a, 6a. Wherein the tapping screw 13 is screwed in 10a was set to be fixed to the lower surface the lower flange portion 10a.

  According to a second aspect of the present invention, in the hanging base metal fitting according to the first aspect, the latching portion 2 is bent in advance in a substantially U shape downward, and the lower plate portion 4 is bent in advance at a required angle with respect to the standing plate portion 3. The folding slits 7 are formed in the folds c that fold the side plate portions 5 with respect to the standing plate portion 3, and the folding slits 8 are formed in the folds d that fold the upper plate portions 6 with respect to the side plate portions 5. It is characterized by being formed.

  According to a third aspect of the present invention, in the suspension bracket according to the first or second aspect, each upper plate portion 6 is bent so as to be inclined slightly upward from a horizontal plane along the lower surface of the lower flange portion 10a of the C-shaped steel. It is characterized by becoming.

  A fourth aspect of the present invention is the hanging bracket according to any one of the first to third aspects, wherein each side plate portion 5 has a tool insertion hole into which a tool used to bend the side plate portion 5 with respect to the standing plate portion 3 is inserted. 9 is provided.

  The effect of the invention by the above-described solution means will be described with reference numerals in the embodiments described later. The suspension base metal of the invention according to claim 1 is folded forward substantially at right angles from the left and right ends of the upright plate portion 3 respectively. The left and right upper plate portions 6 that are bent and extended from the upper ends of the both side plate portions 5 and 5 at substantially right angles outwardly to form screw insertion holes 6a and 6a, respectively. , 6, and the upper plate portions 6, 6 are inserted into the C-shaped steel through the screw insertion holes 6 a, 6 a in a state in which the locking portion 2 is hooked on the lower lip portion 10 c of the C-shaped steel 10. 10 is fixed to the lower surface of the lower flange portion 10a by a tapping screw 13 screwed into the lower flange portion 10a, so that even if a large shake occurs in the C-shape steel at the time of an earthquake, it can be easily detached from the C-shape steel. Therefore, it is possible to prevent the ceiling material or the like from being damaged or dropped.

  According to the second aspect of the present invention, the latching portion 2 is previously bent and formed in a substantially U shape downward, and the lower plate portion 4 is bent at a required angle with respect to the standing plate portion 3 in advance. 5 and the upper plate portion 6 have the same planar shape as the upright plate portion 3, so that the entire suspension base metal 1 can be easily stacked and bulked as compared to the case where the entire suspension base 1 is bent into a three-dimensional shape in use. There is little tension and it is advantageous for packing and transportation. Further, a folding slit 7 is formed in a fold c that folds each side plate portion 5 substantially perpendicular to the standing plate portion 3, and a fold d that folds each upper plate portion 6 substantially perpendicular to each side plate portion 5. Since the bending slits 8 are formed, the side plate portions 5 and the upper plate portion 6 can be easily bent manually by using pliers, pliers or the like at the construction site.

  According to the invention which concerns on Claim 3, each side board part 5 is made to stand upright board part 3 by bending each upper board part 6 in the slightly inclined upward direction from the horizontal surface along the lower surface of the lower flange part 10a of C-shaped steel. When the inner plate is bent so as to be substantially perpendicular to the inner side, the tip end side of the upper plate portion 6 is in pressure contact with the lower surface of the lower flange portion 10a. 10 is held in a state of being hooked on the lower lip portion 10c, and the screwing operation of the upper plate portion 6 by the tapping screw 13 which is the subsequent operation can be quickly and easily performed.

  According to the fourth aspect of the present invention, each side plate portion 5 is provided with a tool insertion hole 9 for inserting a tool used to bend the side plate portion 5 with respect to the standing plate portion 3, for example, a screwdriver. The side plate portion 5 can be bent more easily with respect to the plate portion 3.

(a) is a perspective view which shows the use condition of the hanging bracket concerning this invention, (b) is a perspective view which shows only a hanging bracket. (a) is a development view before the suspension base metal is folded into a three-dimensional shape as shown in FIG. 1, (b) is a use state diagram as shown in (a) of FIG. Side view showing the state where the upper plate is bent at a right angle after hanging on the lower lip, (c) is a side view showing the state where the side plate is bent at a right angle from the state of (b). It is. (a) is an exploded view showing a hanging bracket that is attached to a C-shaped steel that is smaller than the C-shaped steel shown in Fig. 1 (a) and has a lower lip, and (b) shows the mounting state of the hanging bracket. FIG. It is a side view which shows the attachment state of the suspension metal fitting when the flange part of C-shaped steel exists in the state inclined with respect to the horizontal. (a) is a perspective view which shows the attachment state of the conventional suspension base metal fitting, (b) is a perspective view of the suspension base metal fitting.

  A preferred embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 (a) and 1 (b), a suspension base metal 1 according to the present invention has a lower lip portion of a C-shaped steel 10. A ceiling plate 3 formed on the upper side with a latching portion 2 latched by 10c, and a ceiling suspension that is bent forward from the lower end of the standing plate 3 and into which the upper end of the ceiling suspension bolt 20 is screwed. A lower plate part 4 having screw holes 4a for bolts, both side plate parts 5 and 5 bent forward at right angles from the left and right ends of the upright plate part 3, and from the upper ends of both side plate parts 5 and 5, respectively. It consists of left and right upper plate parts 6 and 6 which are bent and extended at right angles outward and have screw insertion holes 6a and 6a, respectively. In the stopped state, the upper plate portions 6 and 6 are screwed into the lower flange portion 10a of the C-shaped steel 10 through the screw insertion holes 6a and 6a. It is obtained so as to secure the lower surface of the lower flange portion 10a by Pingubisu 13. The C-shaped steel 10 is composed of upper and lower flange portions 10a and 10a, a web portion 10b, and upper and lower lip portions 10c and 10c that project from the front ends of the upper and lower flange portions 10a and 10a, respectively.

  This suspension base metal 1 is formed by pressing a steel plate, and bends the upper side inward from the fold a at the upper portion of the upright plate portion 3 from the unfolded state as shown in FIG. Thus, the latching portion 2 is formed, and the lower plate portion 4 is bent inward at a right angle with respect to the standing plate portion 3 from the fold line b between the standing plate portion 3 and the lower plate portion 4. 1 by bending the upper plate 6 from the fold line d between the upper plates 6 to the outside at a right angle to the side plate 5 and bending each side plate 5 to the inside to the upright plate 3 at a right angle. The three-dimensional suspension base metal 1 as shown in (b) is formed.

  The hanging bracket 1 can be formed into a final three-dimensional shape as shown in FIG. 1 (b) at the factory, but it is bulky when a large amount of the hanging bracket 1 is packed. Therefore, in the factory, the latching portion 2 and the lower plate portion 4 are formed by bending, and the side plate portion 5 and the upper plate portion 6 are bent at the construction site. That is, the latching portion 2 needs to be accurately bent downward in a substantially U shape, and it is necessary to form an engagement guide 2a for the lower lip portion 10c of the C-shaped steel 10 at the inlet portion. This is because the reinforcing ribs 12 are provided over the outer surfaces of the plate portion 3 and the lower plate portion 4, so that it is difficult to bend the latching portion 2 and the lower plate portion 4 manually.

  As described above, the side plate portion 5 and the upper plate portion 6 that are manually folded at the construction site are folded at the creases c that bend the side plate portions 5 with respect to the standing plate portion 3 so that they can be folded as easily as possible at the site. Bending slits 7 are formed, and folding slits 8 are formed in fold lines d that fold each upper plate portion 6 with respect to each side plate portion 5. Each side plate portion 5 is provided with a tool insertion hole 9 for inserting a tool (for example, a screwdriver used for screwdriver) used to bend the side plate portion 5 with respect to the standing plate portion 3.

  2 (b) and 2 (c) explain how to use the suspension base metal 1 having the above-described configuration. First, the hanging portion 2 of the suspension base metal 1 is below the C-shaped steel 10 as a main building. Hang on the lip 10c. In this case, the flange portion 10 a of the C-shaped steel 10 is disposed horizontally, and therefore the lower plate portion 4 of the suspension bracket 1 is bent at a right angle with respect to the standing plate portion 3. Further, the hanging bracket 1 has a hooking portion 2 bent in advance in a substantially U-shape downward as shown in FIG. 2 (b), and the lower plate portion 4 is also perpendicular to the standing plate portion 3 in advance. It is bent.

  After the latching portion 2 is latched to the lower lip portion 10c of the C-shaped steel 10, as shown in FIG. 2 (b), the left and right upper plate portions 6 and 6 are attached to an appropriate tool such as pliers or pliers. And bend outwards at approximately right angles. At this time, each upper plate portion 6 is preferably bent so as to be inclined upward by α ° from the horizontal plane along the lower surface of the lower flange portion 10a of the C-shaped steel 10 as shown in FIG. 2 (b). This α ° is about 3 to 5 °. Then, the left and right side plate portions 5 and 5 are bent inward so as to be substantially perpendicular to the upright plate portion 3 as shown in FIG. 6 and 6 are brought into contact with the lower surface of the lower flange portion 10a of the C-shaped steel 10. At this time, as shown in FIGS. 2 (b) and 2 (c), the upper plate portion 6 is bent in advance so as to be inclined upward by α °. 10a, and the suspension base metal 1 is held in a state in which the latching portion 2 is latched to the lower lip portion 10c of the C-shaped steel 10, and the upper portion by the tapping screw 13 which is the subsequent work. The screwing operation of the plate portion 6 can be performed quickly and easily.

  Thereafter, the tapping screw 13 is screwed into the lower flange portion 10a of the C-shaped steel 10 through the screw insertion holes 6a and 6a of the left and right side plate portions 5 and 5, respectively, as shown in FIG. The parts 5 and 5 are fixed to the lower surface of the lower flange part 10 a, whereby the suspension base metal 1 is firmly attached and fixed to the C-shaped steel 10. Thus, after attaching and fixing the hanging bracket 1 to the C-shaped steel 10, the upper end portion of the ceiling hanging bolt 20 for hanging the ceiling base material is screwed into the screw hole 4a for the ceiling hanging bolt in the lower plate portion 4 of the hanging bracket 1. The ceiling suspension bolt 20 is fixed to the C-shaped steel 10 by pressing the upper end surface against the lower surface of the lower flange portion 10 a of the C-shaped steel 10.

  As described above, the hanging metal fitting 1 includes both side plate portions 5 and 5 that are bent and extended from the left and right ends of the upright plate portion 3 to the front, respectively, and the upper ends of the side plate portions 5 and 5. It has a left and right upper plate parts 6 and 6 which are bent and extended substantially perpendicular to the direction and formed with screw insertion holes 6a and 6a, respectively, and the latching part 2 is attached to the lower lip part 10c of the C-shaped steel 10 In the state of being hooked, both the upper plate portions 6 and 6 are fixed to the lower surface of the lower flange portion 10a by tapping screws 13 screwed into the lower flange portion 10a of the C-shaped steel 10 from the respective screw insertion holes 6a and 6a. Therefore, even if a large shaking occurs in the C-shaped steel at the time of the occurrence of the earthquake, it is not easily detached from the C-shaped steel, and the ceiling material or the like can be prevented from being damaged or dropped.

  Further, according to the hanging metal fitting 1, the latching portion 2 is bent in advance in a substantially U shape, the lower plate portion 4 is bent in advance at a required angle with respect to the standing plate portion 3, and the side plate Since the part 5 and the upper plate part 6 have the same planar shape as the standing plate part 3, the entire suspension base metal 1 is bent in a three-dimensional shape in a use state as shown in FIG. Easy to stack, less bulky, and advantageous for packaging and transport. Further, a folding slit 7 is formed in a fold c that folds each side plate portion 5 substantially perpendicular to the standing plate portion 3, and a fold d that folds each upper plate portion 6 substantially perpendicular to each side plate portion 5. Since the bending slits 8 are formed, the side plate portions 5 and the upper plate portion 6 can be easily bent manually by using pliers, pliers or the like at the construction site.

  Each side plate portion 5 is provided with a tool insertion hole 9 for inserting a tool, for example, a screwdriver, used to bend the side plate portion 5 with respect to the standing plate portion 3. The bending operation can be performed more easily.

  FIG. 3 (a) is a developed view showing a suspension metal fitting 11 used for mounting to the C-shaped steel 10 which is smaller than the C-shaped steel 10 shown in FIG. 1 and has a lower lip portion 10c, (b). These are side views which show the attachment state of this hanging base metal fitting 11. FIG. The hanging bracket 11 is a small C-shaped steel 10 that is hooked to a lip portion 10c having a low height, and the length of the latching portion 2 is the latching portion 2 of the C-shaped steel 10 shown in FIG. Since the other configurations are almost the same except that the length is shorter than the length, the same reference numerals are assigned to the corresponding members, and descriptions of the structure and the bending are omitted.

  The C-shaped steel 10 shown in FIGS. 1 to 3 is an embodiment in which the flange portion 10a is disposed horizontally, and therefore the lower plate portion 4 is bent at a right angle with respect to the upright plate portion 3, but FIG. The attachment state of the hanging metal fitting 1 in the state where the flange portion 10a of the C-shaped steel 10 is inclined by β °, for example, 15 ° with respect to the horizontal line H is shown. In the embodiment shown in FIG. 4, since the flange portion 10a of the C-shaped steel 10 is disposed with an inclination of β ° with respect to the horizontal line H, the lower plate portion 4 of the hanging bracket 1 is maintained in a horizontal state. Further, it is bent at an angle smaller than 90 ° by β ° with respect to the standing plate portion 3. As a result, the ceiling suspension bolt 20 screwed into the screw hole 4a of the lower plate portion 4 can be held in a vertical posture.

1,11 Suspension metal fittings a to d of the present invention Fold 2 Latch 3 Standing plate 4 Lower plate 5 Side plate 6 Upper plate 6a Screw insertion hole 7, 8 Bending slit 9 Tool insertion hole 10 C type Steel 10a Flange part 10c Lip part 20 Ceiling suspension bolt 21 Conventional suspension base metal fitting

Claims (4)

  A standing base part for attaching to a C-shaped steel used for a roof purlin or the like, wherein a standing part is formed on the upper side with a latching part that is latched to a lower lip part of the C-shaped steel, and a standing board A lower plate part that is bent forward from the lower end of the part and has screw holes for ceiling suspension bolts, both side plate parts that are bent and extended substantially at right angles from the left and right ends of the standing plate part, and both sides Each of the upper and lower plate portions is bent and extended outward from the upper end of the plate portion at a substantially right angle, and each has screw insertion holes, and the hook portion is hooked to the lower lip portion of the C-shaped steel. In this state, the upper base part is fixed to the lower flange part lower surface with a tapping screw screwed into the lower flange part of the C-shaped steel from each screw insertion hole.   The latching part is bent in advance in a substantially U-shape, the lower plate part is bent in advance at a required angle with respect to the standing plate part, and a folding slit is formed at the fold where each side plate part is bent with respect to the standing plate part. The suspension metal fitting according to claim 1, wherein a folding slit is formed at a fold where each upper plate portion is bent with respect to each side plate portion.   The suspension base metal fitting according to claim 1 or 2, wherein each upper plate portion is bent in a slightly upward inclined shape with respect to a plane along the lower surface of the lower flange portion of the C-shaped steel.   The suspension base metal fitting according to any one of claims 1 to 3, wherein each side plate portion is provided with a tool insertion hole for inserting a tool used to bend the side plate portion with respect to the standing plate portion.

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