Bracket reinforcement structure

Abstract

To easily improve rigidity of a bracket.SOLUTION: The structure comprises a bracket 12, and a reinforcement plate 13. The bracket 12 is bent along an axial line La, and formed into an L-like shape by one plate part 21 and the other plate part 22. Recesses 23 are formed on both of the plate part 21 and the plate part 22. The reinforcement plate 13 is a flat plate which has a triangle shape fitted with an internal angle of the bracket 12 when seen from an axial line direction, and on which a notch 31 serving as a lightening part is formed. A protrusion 34 formed at an edge is fitted and jointed with the recess 23, so as to reinforce the bracket 12.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a bracket reinforcement structure. [Background technology]

[0002] Patent Document 1 discloses a support bracket in which a single steel plate is bent at a right angle, and the cross-sectional shape of the bracket is L-shaped due to the contact surface and the receiving surface. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2001-115565 A Summary of the Invention [Problem to be solved by the invention]

[0004] When the thickness of a bracket having an L-shaped cross section is increased in order to improve rigidity, the sheet metal processing becomes difficult. An object of the present invention is to easily improve the rigidity of a bracket. [Means for solving the problem]

[0005] A bracket reinforcement structure according to one aspect of the present invention includes a bracket and a reinforcing plate. The bracket is bent along an axis and formed into an L-shape by one plate portion and the other plate portion, and a recess is formed in both the one plate portion and the other plate portion. The reinforcing plate is a flat plate with a triangular shape that fits into an inner angle of the bracket when viewed from the axial direction and with a hollowed-out portion formed therein, and reinforces the bracket by fitting a protrusion formed on the edge into the recess and joining the reinforcing plate. Effect of the Invention

[0006] According to the present invention, since the bracket can be reinforced by the reinforcing plate, the rigidity of the bracket can be easily improved. Also, the bracket rigidity can be easily adjusted by the recessed portion. [Brief description of the drawings]

[0007] [Figure 1] FIG. 13 is a diagram showing a bracket reinforcing structure. [Diagram 2] FIG. 13 is a diagram showing a bracket reinforcing structure. [Diagram 3] FIG. [Figure 4] FIG. [Diagram 5] FIG. [Figure 6] FIG. 13 is a diagram showing the installation of the bracket reinforcing structure. [Figure 7] FIG. [Figure 8] 13A and 13B are diagrams showing modified examples of the reinforcing plate. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Note that each drawing is a schematic view and may differ from the actual one. In addition, the following embodiment illustrates an apparatus and method for embodying the technical idea of ​​the present invention, and does not specify the configuration as described below. In other words, the technical idea of ​​the present invention can be modified in various ways within the technical scope described in the claims.

[0009] <<Embodiment>> "composition" In the following description, the three mutually orthogonal directions are referred to as the axial directions, the x direction, and the y direction. In each of the x direction and the y direction, the side closer to the axis La is defined as the inner side, and the side farther from the axis La is defined as the outer side. FIG. 1 is a diagram showing a bracket reinforcing structure 11. As shown in FIG. In the figure, (a) shows the bracket reinforcement structure 11 as viewed from one side in the axial direction, from the inside in the x direction, and from the inside in the y direction. In the figure, (b) shows the bracket reinforcement structure 11 as viewed from one side in the axial direction, from the outside in the x direction, and from the outside in the y direction. FIG. 2 is a diagram showing the bracket reinforcing structure 11. As shown in FIG. Here, the bracket reinforcement structure 11 is shown as viewed from one side in the axial direction. The bracket reinforcement structure 11 includes a bracket 12 and a reinforcing plate 13.

[0010] FIG. 3 is a diagram showing the bracket 12. As shown in FIG. Here, the bracket 12 is shown as viewed from one side in the axial direction, from the outside in the x direction, and from the outside in the y direction. FIG. 4 is a diagram showing the bracket 12. As shown in FIG. FIG. 1A shows the bracket 12 as viewed from one side in the axial direction. FIG. 1B shows the bracket 12 as viewed from the outside in the y direction. The bracket 12 is a pressed steel plate, bent at a right angle along the axis La, and formed into an L-shape by one plate portion 21 and the other plate portion 22, and is generally called an angle bracket or angle piece. One plate portion 21 is a flat plate along the axial direction and the x direction, and is a rectangle with the axial direction as the longitudinal direction when viewed from the y direction. The other plate portion 22 is a flat plate along the axial direction and the y direction, and is a rectangle with the axial direction as the longitudinal direction when viewed from the x direction. The direction perpendicular to the interior angle bisector Lb of the bracket 12 as viewed from the axial direction, that is, the direction at an angle of 45 degrees to both the x direction and the y direction, is the connection direction.

[0011] One plate portion 21 is formed with a recess 23 and a mounting hole 24. The recess 23 is a hole penetrating in the thickness direction, and is formed in a total of six locations, two locations on the inside and outside along the x direction, and three locations on one end side, the center, and the other end side along the axial direction. Each recess 23 extends along the axial direction, is wide on one end side and narrow on the other end side, and all have the same dimensions. The mounting hole 24 is a round hole penetrating in the thickness direction, and is formed in two locations in the center in the x direction, between the recess 23 on one end side and the recess 23 on the center along the axial direction, and between the recess 23 on the center side and the recess 23 on the other end side. The other plate portion 22 also has a recess 23 and a mounting hole 24. The other plate portion 22 is rotationally symmetrical and coincides with the one plate portion 21 when rotated about the axis La, and therefore a detailed description thereof will be omitted.

[0012] FIG. 5 is a diagram showing the reinforcing plate 13. As shown in FIG. (a) in the figure shows the reinforcing plate 13 as viewed from one side in the axial direction, the inside in the x direction, and the inside in the y direction. (b) in the figure shows the reinforcing plate 13 as viewed from one side in the axial direction. The reinforcing plate 13 is a flat plate in the shape of a right-angled isosceles triangle that fits into the inner angle of the bracket 12 as viewed from the axial direction, and a notch 31 is formed as a lightening portion. The notch 31 penetrates in the thickness direction and is formed along a direction perpendicular to the connection direction as viewed from the axial direction, and in the right-angled isosceles triangle, one extends from the apex to the midpoint of the hypotenuse, and the other extends from the midpoint of the hypotenuse to the apex. The notch 31 forms an arm 33 that extends parallel to the connection direction and connects one plate portion 21 side to the other plate portion 22 side. When viewed from the axial direction, the arm 33 has a dimension in the connection direction L1 and a dimension in a direction perpendicular to the connection direction L2, and the rigidity of the reinforcing plate 13 is set by adjusting these L1 and L2. The reinforcing plate 13 has protrusions 34 formed at two locations, one inside and one outside, on the edge along the x direction, and has protrusions 34 formed at two locations, one inside and one outside, on the edge along the y direction. The width of the protrusions 34 is smaller than that of one end side of the recess 23 in the axial direction and larger than that of the other end side of the recess 23 in the axial direction. The reinforcing plate 13 is joined to the bracket 12 by fitting each protrusion 34 into one end side of the recess 23 in the axial direction and pushing it toward the other end in the axial direction, thereby being crimped.

[0013] FIG. 6 is a diagram showing the installation of the bracket reinforcing structure 11. As shown in FIG. Here, the bracket reinforcement structure 11 is shown as viewed from the axial direction. The bracket 12 has one plate portion 21 connected to a structural member 16, and the other plate portion 22 connected to another structural member 17. These connections are made by fastening with bolts or screws through mounting holes 24. At least one of the structural members 16 and 17 is a member that vibrates or receives vibration. Here, it is assumed that the primary mode, secondary mode, and rotational mode are excited by being mounted on a moving body such as an automobile or a train, for example. When the bracket 12 is vibrated, an inward force that brings the plate portions 21 and 22 closer to each other and an outward force that separates the plate portions 21 and 22 from each other act alternately. The reinforcing plate 13 suppresses deformation that brings the plate portions 21 and 22 closer to each other and deformation that separates the plate portions 21 and 22 from each other.

[0014] <Action and Effect> Next, main effects of the embodiment will be described. The bracket reinforcement structure 11 includes a bracket 12 and a reinforcing plate 13. The bracket 12 is bent along the axis La and formed into an L-shape by one plate portion 21 and the other plate portion 22, and a recess 23 is formed in both the one plate portion 21 and the other plate portion 22. The reinforcing plate 13 is a flat plate having a triangular shape that fits into an inner angle of the bracket 12 when viewed from the axial direction, and a notch 31 as a lightening portion is formed therein, and a protrusion 34 formed on the edge is fitted into the recess 23 and joined to reinforce the bracket 12. In this way, by joining the reinforcing plate 13, the rigidity of the bracket 12 can be easily improved. In addition, the rigidity of the bracket 12 can be easily adjusted by the notch 31 as a lightening portion.

[0015] The direction perpendicular to the interior angle bisector Lb of bracket 12 as viewed from the axial direction is the connection direction. The lightening portion is a notch 31 that penetrates in the thickness direction and is formed along a direction perpendicular to the connection direction as viewed from the axial direction. Therefore, the rigidity of bracket 12 can be easily adjusted by setting the number, arrangement, dimensions, etc. of notches 31. Arms 33 are formed by notches 31 as lightening portions, extending parallel to the connection direction and connecting one plate portion 21 to the other plate portion 22. Therefore, the rigidity of bracket 12 can be easily adjusted by setting the number, arrangement, dimensions, etc. of arms 33.

[0016] The recess 23 extends along the axial direction and is narrower at one end than at the other end. The protrusion 34 is pressed from one axial end to the other end of the recess 23 and joined by crimping. This makes it possible to attach the reinforcing plate 13 to the bracket 12 by the simple task of simply pressing the reinforcing plate 13 in the axial direction, without using fastening members such as screws or rivets. A plurality of reinforcing plates 13 are provided along the axial direction, thereby making it possible to improve the rigidity of the bracket 12. One plate portion 21 of the bracket 12 is connected to a structural member 16, and the other plate portion 22 is connected to another structural member 17. At least one of the structural members 16 and 17 vibrates or is subjected to vibration. By applying the bracket reinforcement structure 11 in a place that vibrates or is subjected to vibration, it is possible to prevent the screws used in the structural member 16 or the structural member 17 from loosening.

[0017] Next, a comparative example will be described. In the comparative example, the reinforcing plate 13 is omitted, and the other configuration is the same as in the above-described embodiment, so the same reference numerals are used for the common configuration and detailed description is omitted. FIG. 7 is a diagram showing a comparative example. Here, bracket 12 is shown as viewed from the axial direction. When mounted on a moving body such as an automobile or train, a rotational mode is excited by the vibration caused by the running of the bracket, and vibrations as shown by the arrows occur in plate portion 21, for example. This may loosen the screws used in structural members 16 and 17. To cope with this, it is conceivable to increase the thickness of bracket 12 to improve its rigidity, but this would make sheet metal processing of bracket 12 difficult.

[0018] <<Variation>> In the embodiment, the configuration in which only the notch 31 is formed as the lightening portion of the reinforcing plate 13 has been described, but the present invention is not limited to this. That is, a hole may be formed as the lightening portion of the reinforcing plate 13. FIG. 8 is a diagram showing a modified example of the reinforcing plate 13. In FIG. FIG. 1(a) shows the reinforcing plate 13 as viewed from the axial direction. The reinforcing plate 13 has cutouts 31 and holes 32 formed as lightening portions. The holes 32 penetrate in the thickness direction, are formed along a direction perpendicular to the connection direction as viewed from the axial direction, and are arranged at two points on a line connecting the apex and the midpoint of the hypotenuse in a right-angled isosceles triangle. The cutouts 31 and holes 32 form three arms 33 that extend parallel to the connection direction and connect one plate portion 21 side to the other plate portion 22 side. All of the arms 33 have the same dimension L1 in the connection direction and dimension L2 in the direction perpendicular to the connection direction.

[0019] FIG. 1(b) shows the reinforcing plate 13 as viewed from the axial direction. Ten holes 32 are formed in the reinforcing plate 13 as lightening portions. Seven arms 33 are formed by the notches 31 and the numerous holes 32. All of the arms 33 have the same dimension L1 in the connection direction and dimension L2 in the direction perpendicular to the connection direction. As described above, when there are multiple arms 33, at least one of the dimension L1 in the connection direction and the dimension L2 in the direction perpendicular to the connection direction when viewed from the axial direction is common to all of them. This makes it possible to prevent localized areas of low or high rigidity in the reinforcing plate 13 and to achieve uniform rigidity over the entire surface direction.

[0020] Although the above description has been given with reference to a limited number of embodiments, the scope of the invention is not limited thereto, and modifications of the embodiments based on the above disclosure will be obvious to those skilled in the art. [Explanation of symbols]

[0021] 11... bracket reinforcement structure, 12... bracket, 13... reinforcement plate, 16... structural member, 17... structural member, 21... plate portion, 22... plate portion, 23... recess, 24... mounting hole, 31... notch, 32... hole, 33... arm, 34... protrusion, La... axis

Claims

1. a bracket bent along an axis and formed in an L-shape by one plate portion and another plate portion, with recesses formed in both the one plate portion and the other plate portion; a reinforcing plate which is a flat plate having a triangular shape that fits into the inner angle of the bracket when viewed from the axial direction, with a hollowed-out portion formed therein, and which reinforces the bracket by fitting a convex portion formed on the edge into the concave portion and joining the plate.

2. A direction perpendicular to the interior angle bisector of the bracket as viewed from the axial direction is defined as a connection direction, 2. The bracket reinforcement structure according to claim 1, wherein the hollow portion is a notch or a hole that penetrates in the thickness direction and is formed along a direction perpendicular to the connection direction when viewed from the axial direction.

3. 3. The bracket reinforcement structure according to claim 2, wherein the hollowed-out portion defines an arm extending parallel to the connection direction and connecting one of the plate portions to the other of the plate portions.

4. 4. The bracket reinforcement structure according to claim 3, wherein when there are a plurality of arms, at least one of a dimension in a connection direction and a dimension in a direction perpendicular to the connection direction when viewed from the axial direction is common to all of the arms.

5. The recess extends along the axial direction and is narrower at one end than at the other end.

2. The bracket reinforcing structure according to claim 1, wherein the protrusion is pressed from one axial end side to the other axial end side of the recess and joined by crimping.

6. 2. The bracket reinforcing structure according to claim 1, wherein the reinforcing plate is provided in a plurality of parts along the axial direction.

7. The bracket has one of the plate portions connected to a structural member and the other plate portion connected to another structural member, 2. The bracket reinforcement structure of claim 1, wherein at least one of said structural members vibrates or is subject to vibration.

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