JP3105992U - Panel mounting bracket - Google Patents

Abstract

An inexpensive panel mounting bracket that is thin and lightweight, reduces the amount of steel used in manufacturing, reduces the weight, has the required strength, has excellent mounting strength after welding, has good welding workability, and has good welding workability. I will provide a.
A panel mounting bracket is formed of a sheet metal having one end side and the other end side which are continuous in parallel with each other via a step in a longitudinal direction, has a through hole for fixing a panel on one end side, and has a building end on the other end side. A panel mounting bracket for mounting on a body of a product, wherein the panel mounting bracket has a projecting strip protruding on both sides in the width direction across the through hole on the opposite side to the panel fixing surface and continuous in the longitudinal direction. The surface perpendicular to the vertical direction forms the side end surface of the fitting.
[Selection diagram] Fig. 1

Description

  The present invention relates to a panel mounting bracket used when a panel such as an ALC panel or a PC panel is mounted on a building frame to form an outer wall, a handrail wall, a floor, or the like.

  Conventionally, there are various construction methods for attaching panels such as ALC boards and PC boards to beams or verandas of the skeleton to constitute the outer walls, handrail walls, floors, etc. of the building, and there is a dry construction method among them. There is a method using a mounting bracket as shown in FIG.

  This mounting bracket 1 is made of a sheet metal whose one end 1a and the other end 1b are continuous in a longitudinal direction parallel to each other via a step 1c, and a through hole 2 for fixing a panel is formed in one end 1a. I have. Usually, the thickness of the sheet metal forming the mounting bracket 1 is 6 to 9 mm, the width is 50 to 150 mm, and the length is about 100 to 200 mm, which are appropriately selected according to the required mounting strength. The reason why the thickness of the sheet metal is 6 to 9 mm is that if the thickness is less than 6 mm, the cross-sectional area is small and the bending strength is insufficient, and if it exceeds 9 mm, it becomes difficult to perform cold bending.

  In order to manufacture the mounting bracket 1, a flat iron strip having a thickness in the range of 6 to 9 mm is cut into a desired width and length, and is first pressed to form a step 1c, and then the one end 1a is formed. Then, through holes 2 for inserting bolts are formed, and plating is performed at the end to complete.

  As described above, the conventional panel mounting bracket has a thickness of 6 to 9 mm due to the necessity in terms of strength, and has a large weight, so that there is a problem that it is not possible to meet the need for further weight reduction. Further, there is a problem that the strength depends on the sheet metal plate thickness. That is, as the required strength increases, it is necessary to increase the sheet metal plate thickness.

  In addition, if the thickness of the sheet metal is 6 to 9 mm, a press machine for a thin steel sheet with high productivity cannot cope with the problem, so that there is a problem that the price increases.

  Therefore, as shown in FIG. 4, a protruding strip 22 is provided so that a desired strength can be obtained even if the thickness of the sheet metal is 3 to 5 mm, as in the mounting bracket 21 described in Japanese Patent Application Laid-Open No. 9-32167. Some have done it. However, there is a problem that a desired strength cannot be obtained with a sheet metal having a thickness of 3 mm or less, which can be handled by a press machine for an extremely thin sheet having higher productivity.

  As shown in FIG. 5, the mounting bracket 1 is fixed near the upper and lower ends of each panel 3 with bolts 4 inserted through the through holes 2 at one end 1a. A ruler angle 6 welded to the upper and lower flanges of the beam 5 of the skeleton is inserted between the other end 1b of the mounting bracket 1 and the panel 3 to be clamped, or the other end 1b of the mounting bracket 1 and the panel 3 In between, the ruler angles 6 welded to the upper and lower flanges of the beam 5 of the skeleton are inserted and clamped and fixed, or the both ends of the mounting bracket 1 in the width direction and the ruler angles 6 are connected to the welded portions 7 shown in FIG. The panel 3 can be attached to the skeleton by welding and fixing.

JP-A-9-32167

  However, in the case where the mounting bracket and the ruler angle are welded and fixed, in the shape of the mounting bracket 21 shown in Japanese Patent Application Laid-Open No. 9-32167, both ends in the width direction of the mounting bracket 21 are equal to the thickness of the sheet metal. In addition, since the area to be welded and fixed in the welded portion 7 cannot be made large, it is necessary to perform full-length welding in order to obtain a necessary welding strength, and there has been a problem that it takes a long working time. In addition, when there is no portion for guiding the welding rod, for example, when it is desired to mount the bracket 1 in a place behind a pillar or the like, it is difficult to apply the welding rod to a correct welding location, and there is a problem of poor workability. .

  In view of the above problems, the present invention is thin and lightweight, and reduces the amount of steel used for manufacturing to reduce the weight, and furthermore, has the necessary strength, has excellent mounting strength after welding, and has excellent welding workability. It is an object to provide a good and inexpensive panel mounting bracket.

In order to achieve the above object, a panel mounting bracket provided by the present invention is formed of a sheet metal whose one end and the other end are continuous in parallel with each other via a step in a longitudinal direction, and has a transparent portion for fixing the panel to one end. A panel mounting bracket having a hole and the other end side to be attached to the frame of the building, and provided on both sides in the width direction across the through hole with a projecting strip protruding on the opposite side to the panel fixing surface and continuous in the longitudinal direction. In the panel mounting bracket, the both side end sheet metals in the width direction of the bracket are bent to the opposite side to the panel fixing surface.

  Further, in addition to the above configuration, an angle θ formed between both side end sheet metals in the width direction of the bracket bent to the opposite side to the panel fixing surface and the panel fixing surface is 20 ° or more and 90 ° or less. Is desirable.

  Further, from the panel fixing surface sheet metal, to the both side end sheet metal in the width direction of the bracket bent to the opposite side to the panel fixing surface, is configured by a curve in a cross section viewed from the bracket longitudinal direction, the curve is, It is desirable that the arc has a radius of 2 mm or more and less than 10 mm.

  Furthermore, it is desirable that the thickness of the sheet metal is 1.2 mm or more and 3 mm or less.

  The panel mounting bracket according to the present invention is provided with projecting strips protruding on opposite sides of the panel fixing surface on both sides in the width direction across the through hole and continuous in the longitudinal direction, and both ends in the width direction of the bracket. Since the sheet metal is bent to the side opposite to the panel fixing surface, a larger section modulus can be obtained as compared with the related art, so that the required bending strength can be obtained even if the sheet metal is thin. Since the thickness of the plate can be reduced, the material cost can be reduced and the weight can be reduced.

  In addition, since the angle between the metal plate on both sides in the width direction of the bracket bent to the opposite side to the panel fixing surface and the panel fixing surface is not less than 20 ° and not more than 90 °, it is welded to the upper and lower flanges of the frame. It is possible to increase the area where both ends in the width direction of the mounting bracket to be welded are fixed, so that the welding length for obtaining the required welding strength can be shortened, and the construction time can be shortened.

Further, from the panel fixing surface sheet metal, to both side end sheet metal in the width direction of the bracket bent to the opposite side to the panel fixing surface, is configured by a curve in a cross section viewed from the bracket longitudinal direction, the curve is, Since the arc has a radius of 2 mm or more and less than 10 mm, the strength of the bent portion during press working is less reduced, and the consumption of the mold can be suppressed.

In addition, since there is a curved surface or an angle θ portion at the metal side end portion, it serves as a guide for a welding rod at the time of welding, thereby improving workability.

  In the present invention, a step, a projecting strip, and a through hole are preferably formed in a sheet metal having a thickness of 1.2 mm or more and 3 mm or less by a single press working.

  The reason why the thickness of the sheet metal is set to be 1.2 mm or more and 3 mm or less is that if the thickness is 1.2 mm or less, the sheet metal may be melted by heat during welding, and if the thickness is 3 mm or more, the amount of steel material used increases and the cost increases. And the weight is also increased.

  The projecting direction of the protruding strip is such that the surface on which the panel is fixed (the panel fixing surface) is concavely concave and the opposite surface protrudes convexly so as not to obstruct the panel fixed to the mounting bracket. It is formed as follows.

  The shape of the protruding strip is not particularly limited, but may be any shape as long as it can be formed by bending a sheet metal by a press. For example, the cross section may be a semicircle, a U-shape, or a polygonal fold line. The number of the protruding strips is usually one at each end of the mounting bracket in the width direction or in the vicinity thereof, that is, two in total, but may be two or more depending on the size of the mounting bracket. In addition, the height of the protruding strip depends on the size of the mounting bracket and the like, but is generally preferably 5 mm or more and 10 mm or less.

  Generally, both ends protruding in the thickness direction of the metal fitting formed on the side end surface of the metal fitting preferably have the same height as the projecting strip. Thereby, a high section modulus can be obtained.

  If the height of the protruding strip is 5 mm or more and 10 mm or less, the required bending strength is difficult to obtain when the height is 5 mm or less, and when the height is 10 mm or more, for example, when the interior is applied to the side where the mounting bracket is attached after construction, Because it gets in the way.

  FIG. 1 shows an embodiment of a mounting bracket having a sheet metal surface perpendicular to a thickness direction of the bracket on a side end surface of the projection and the bracket according to the present invention.

  The mounting bracket 11 shown in FIG. 1 is made of a sheet metal having one end 11a and the other end 11b continuous with each other via a step 11c, and has a through hole 2 for fixing the panel at one end 11a. Two protruding strips 22 each having an arc-shaped cross section protruding in the opposite direction to the panel fixing surface near both ends in the width direction with the pinch therebetween are continuous in the longitudinal direction including the step 11c from one end 11a to the other end 11b. It is provided.

  Both ends in the width direction of the mounting bracket 11 form a flat surface 11d which is not parallel to the panel surface on the side opposite to the panel mounting surface, and the flat surface 11d extends from one end 11a to the other end 11b in the longitudinal direction including a step 11c. It is provided continuously.

  The method of attaching the panel to the skeleton using this attachment is the same as the conventional method shown in FIG. For example, as shown in FIG. 2, the mounting bracket 11 is fixed to the panel 3 by bolts 4 inserted into the through holes 2 on one end 11 a, and the frame 3 is provided between the other end 11 b of the mounting bracket and the panel 3. The ruler angle 6 welded to the upper and lower flanges of the beam 5 is inserted and clamped, or the ruler angle 6 welded to the upper and lower flanges of the beam 5 of the skeleton is inserted between the other end 11 b of the mounting bracket 11 and the panel 3. It can be mounted by pinching it. In addition, the panel 3 can be attached to the frame by welding and fixing both ends in the width direction of the attachment fitting 11 and the ruler angle 6.

  As a specific example of the present invention, the panel mounting bracket shown in FIG. 1 was manufactured. In the mounting bracket 11 of FIG. 1, one end 11a and the other end 11b are continuous in a longitudinal direction in parallel with each other via a step 11c, and the one end 11a has a diameter of 15 × 25 mm on the center line in the width direction. An elliptical through hole 2 is provided. The mounting bracket 11 has a length in the longitudinal direction of 90 mm, a width of 70 mm, and a thickness of 2.3 mm, and has a panel fixing surface near each end in the width direction with the through hole interposed therebetween. An arc-shaped projecting ridge 22 protruding to the opposite side with a height of 8 mm is formed continuously in the longitudinal direction on one end 11a, the step 11c, and the other end 11b.

  Both ends in the width direction of the mounting bracket 11 form a flat surface 11d which is not parallel to the panel surface on the side opposite to the panel mounting surface, and the flat surface 11d extends from one end 11a to the other end 11b in the longitudinal direction including a step 11c. It is provided continuously.

  In the manufacture of the mounting bracket 11, since the thickness of the flat iron strip as a material is as thin as 2.3 mm, the bending of the step 11c, the two projecting strips 22 and the vertical surface 11d, and the through-hole 2 are all performed at one time. Processing could be performed in several steps using only one press machine.

  Further, the weight and strength of these mounting brackets 11 were measured and compared with those of conventional mounting brackets. The conventional mounting bracket used for comparison has a structure having a protruding strip shown in FIG. 4 and has a thickness of 3.2 mm, a length of 100 mm, and a width of 70 mm, and is sandwiched between the through holes. In the vicinity of both ends in the width direction, projecting strips 22 having a semicircular cross section projecting at a height of 8 mm on the opposite side to the fixing surface of the panel are formed continuously at one end, the step and the other end in the longitudinal direction. Have been.

  In addition, the strength measurement method is to fix the mounting bracket to a strong frame that reproduces the situation to be constructed in the same way as actual construction, weld and fix the mounting bracket and the ruler angle, and install the panel at the center of the drilling The elastic limit load was measured by giving a displacement of 1 mm / min in the plane direction.

  As a result, the weight of the conventional fitting 21 was 180 g and the elastic limit load was 2641 N, whereas the weight of the fitting 11 of the present invention was 160 g and the elastic limit load was 2692 N.

  Further, in the same test specimen as above, the weld strength was measured when the length of the weld was changed. The mounting bracket 11 of the present invention shown in FIG. 1 and the conventional mounting bracket 21 shown in FIG. 4 were evaluated using a test piece shown in FIG. 2 in which the length of the welded portion 7 was reduced.

  As a result, when the length of the welded portion 7 of the conventional fitting 21 was set to 18 mm, the welded portion was broken before reaching the elastic limit load, whereas the fitting 11 of the present invention was changed to the welded portion. Even when the length of 7 was set to 10 mm, no weld fracture occurred before reaching the elastic limit load.

  From these results, the mounting bracket of the present invention has the same strength as the conventional one, the manufacturing cost can be reduced by 10%, and the strength of the welded part is higher than the conventional one, though it is thinner and lighter than the conventional one. It was found that the construction time could be shortened.

FIG. 3 is a perspective view and a sectional view of the panel mounting bracket according to the embodiment of the present invention. It is a perspective view of the panel attached using the panel attachment metal of the conventional example. It is a perspective view of the conventional panel mounting bracket. It is a perspective view of another conventional panel mounting bracket. It is a perspective view of the panel attached using the panel attachment metal of the conventional example.

Explanation of reference numerals

1, 11, 21 Mounting brackets 1a, 11a, 21a One end 1b, 11b, 21b The other end 1c, 11c, 21c Step 11d Flat portion 11r Curved portion 22 Projection 2 Through hole 3 Panel 4 Bolt 5 Beam 6 Ruler angle 7 welded part

Claims (4)

One end side and the other end side are made of sheet metal continuous in parallel with each other via a step in the longitudinal direction, have a through hole for fixing the panel on one end side, and the other end side is a panel mounting bracket to be attached to the building frame. In a panel mounting bracket provided on both sides in the width direction across the through hole and protruding on the opposite side to the panel fixing surface and provided with a protruding strip continuous in the longitudinal direction, both side end metal sheets in the width direction of the bracket are connected to the panel. A panel mounting bracket which is bent to a side opposite to a fixing surface. The angle θ formed between the sheet metal at both ends in the width direction of the bracket bent to the opposite side to the panel fixing surface and the panel fixing surface is not less than 20 ° and not more than 90 °. Panel mounting bracket described.   From the panel fixing surface sheet metal, to both side end sheet metals in the width direction of the bracket bent to the opposite side to the panel fixing surface, a curve is formed in a cross section viewed from the bracket longitudinal direction, and the curve has a radius of 2 mm. 3. The panel mounting bracket according to claim 1, wherein the arc is an arc of less than 10 mm.   The panel mounting bracket according to any one of claims 1 to 3, wherein a thickness of the sheet metal is 1.2 mm or more and 3 mm or less.