JP4117000B2 - Mounting structure of support - Google Patents

Description

  The present invention relates to a mounting structure for a support column in which a lower end portion of a support column is externally fitted and fixed to a support column base.

  Patent Document 1 discloses an aluminum die-casting column pedestal supporting a lower end of a conventional column, in which a cylindrical column insertion shaft is integrally projected upward from a base portion fixed to a floor surface. ing.

Conventionally, the bottom end of the cylindrical support is fitted on the support insertion shaft, and the support is positioned by placing the lower end of the support on the upper surface of the base, and in this state, the support and the support insertion shaft are fixed with screws. However, in the conventional support pedestal, the outer surface of the corner formed by the base part of the support insertion shaft and the base part has a vertical cross-sectional shape that is bent at a right angle. If applied, bending moment will repeatedly act on the corner of the column base, and stress concentration on the edge of the corner may cause cracking or breakage of the aluminum die-casting, reducing the safety of the fence. . For this reason, it is very important to improve the fracture resistance in the conventional support base.
JP 2002-294632 A

  The present invention has been invented in view of the above-described conventional problems, and a strut base excellent in fracture resistance can be obtained at a low cost, and positioning of the strut with respect to the strut insertion shaft of the strut base can be accurately and easily performed. An object of the present invention is to provide a mounting structure for a column that can be fixed to the column and the column base.

  In order to solve the above-mentioned problem, the present invention is such that a column insertion shaft 19 is integrally protruded upward from a base portion 18 of a column base 17 fixed to a base, and a lower end portion 1d of the column 1 is provided on the column insertion shaft 19. In the mounting structure of the strut to which is fixed by being externally fitted, the outer surface R of the corner portion 21 formed by the base portion 19a of the strut insertion shaft 19 and the base portion 18 has a rounded shape with a gentle vertical cross-sectional shape. The base portion 18 and the base portion 19a of the column insertion shaft 19 are integrally formed so as to be continuous via the outer rounded surface R, and the column 1 extends outward from the outer rounded surface R. A positioning projection 20 for placing and positioning the lower end 1d is set, and the upper end of the positioning projection 20 is set to be equal to or higher than the upper end of the outer radius surface R. It is characterized by being obtained by fixing a post 1 to post insertion axis 19 at a position above the upper end of the projection 20.

  With such a configuration, the outer surface of the corner portion 21 formed by the base portion 18 of the column base 17 and the root portion 19a of the column insertion shaft 19 is formed as an outer radius surface R having a gentle vertical cross-sectional shape. As a result, there is no edge where stress is concentrated as in the prior art, and even when the stress is concentrated on the corner portion 21, it is possible to prevent the occurrence of deformation and cracking (crack). The amount of insertion of the column 1 with respect to the column can be regulated by using the positioning protrusions 20 protruding outward of the outer rounded surface R instead of the outer rounded surface R, so that the column 1 can be positioned accurately and easily with respect to the column insertion shaft 19. It becomes.

  Further, a lip groove 7 is provided on the side surface 1 b of the support column 1, the end of the horizontal beam 2 is inserted into a part of the lip groove 7, the horizontal beam 2 is bridged between the support columns 1, and the remaining part of the lip groove 7 It is preferable that the lower end portion of the column cover 11 fitted in the lip groove 7 is placed and positioned on the upper end of the positioning projection 20 of the column base 17. In this case, the position regulation of the column cover 11 for making up the side surface 1b of the column 1 can be performed by using the column base 17, so that the column cover 11 can be attached easily.

  Further, a base cover 22 that covers the base portion 18 of the column base 17 is provided, the inner edge portion 22a of the base cover 22 is abutted against the outer peripheral surface of the lower end portion 1d of the column 1, and the lower end of the inner edge portion 22a is placed on the column base. It is preferable that the positioning protrusion 20 is placed on the upper end of the positioning projection 20 and positioned. In this case, the inner edge portion 22a of the base cover 22 is abutted against the outer peripheral portion of the lower end portion 1d of the support column 1 without a gap. Thus, the entire base portion 18 can be covered by the base cover 22, and the position of the base cover 22 with respect to the base portion 18 can be regulated using the column base 17, so that the base cover 22 can be easily attached. It becomes.

  The column mounting structure according to the present invention is formed by forming the outer surface of the corner portion formed by the base portion of the column base and the base portion of the column insertion shaft into an outer radius surface having a gentle vertical cross-sectional shape. A strut base excellent in breakability is obtained, and it is not necessary to provide a dedicated member for reinforcing the corner portion of the strut base, so that the increase in the number of parts can be prevented and the manufacturing cost can be prevented. Since the insertion amount of the column with respect to the column insertion shaft can be regulated by using the positioning projection that protrudes from the outer rounded surface, the column can be accurately and easily positioned on the column insertion shaft, so that the column and the column insertion shaft are fixed. However, work efficiency is greatly improved.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

  FIG. 2 shows an example of a loft fence in which the lower ends of the two columns 1 supporting the headboard 23 are externally fitted to the column base 17 fixed to the floor 16 and fixed with screws. FIG. 3 shows an example of a wide loft fence with three struts 1. In the figure, 2 is a horizontal rail, 23 is a coping, and 24 is a shielding plate.

  As shown in FIG. 4A, the support column 1 is formed in a substantially H shape in plan view. In this example, as shown in FIG. 6, a pair of left and right flanges 25 protrude on both side surfaces on the long side of the support column 1 so as to face each other, and the tips of the left and right flanges 25 are further bent inward. A lip piece 12 is formed, and a portion surrounded by the flange 25 and the lip piece 12 is a lip groove 7. The outer corner 12a of the lip piece 12 is rounded so as to prevent the clothes from being caught. Further, in this example, the outer end surface 14c of the engaging portion 14 of the engaging portion 14 of the support column cover 11 is formed flat, but as another example, as shown in FIG. 7, the outer end surface 14c may be formed in a hollow shape. Good.

  As shown in FIG. 1, the column base 17 has a column insertion shaft 19 integrally projecting upward from a base portion 18 fixed to the floor 16, and the lower end 1 d of the column 1 is connected to the column insertion shaft 19. It is fitted and fixed. As shown in FIG. 6, the support insertion shaft 19 has a substantially rectangular shape slightly smaller than the support 1.

  The support pedestal 17 is made of, for example, die-casting or the like, and a base portion 19 a of a square cylindrical support insertion shaft 19 is bent outwardly and is integrally formed with the base portion 18. The base portion 18 is fixed to the floor surface 16 by pedestal mounting bolts 26. In the present invention, the outer surface of the corner portion 21 formed by the base portion 19 a of the support column insertion shaft 19 and the base portion 18 is an outer rounded surface R having a large round cross-sectional shape, and the base portion 18. The base portion 19 a of the column insertion shaft 19 is integrally formed so as to be continuous via the outer rounded surface R. Thereby, the strength improvement of the corner part 21 is achieved.

  Further, a positioning protrusion 20 for projecting and positioning the lower end portion 1d of the support column 1 is projected from the outer rounded surface R toward the outside. As shown in FIG. 5A, the positioning protrusion 20 of the present example has a plurality (six in this example) of ribs 20a that project radially outward from the outer rounded surface R around the column insertion shaft 19. , 20b. The upper ends of the ribs 20a and 20b are the same or higher than the upper end of the outer round surface R. The ribs 20a and 20b in this example are composed of two short ribs 20a provided on the short side of the column insertion shaft 19 and one long rib 20b provided on the long side. As shown in FIG. 6, the width dimension d1 of the short rib 20a is set to a length that allows the lower end 1d of the column 1 to be placed, and the width d2 of the long rib 20b is the lower end 1d of the column 1 and the column cover 11. The lower end portion of the base cover 22 and the lower end of the inner edge portion 22a of the base cover 22 can be placed on each other. In this example, two short ribs 20a are provided at two locations on the long side of the lower end portion 1d of the column 1 and two locations on the lower end portion of the column cover 11 described later, and further two locations on the lower end of the inner edge portion 22a of the base cover 22. Each of the long ribs 20b supports one central portion on the short side of the lower end portion 1d of the column 1.

  Further, as shown in FIG. 1, the column insertion shaft 19 is provided with a screw hole 28 at a position above the upper end of the positioning projection 20, and the lower end 1 d of the column 1 is placed on the positioning projection 20. The screw hole 28 and the screw hole 29 provided in the column 1 are aligned, and the column 1 and the column insertion shaft 19 can be fixed with screws.

  Next, the base cover 22 will be described. The base portion 18 of the support base 17 is concealed by a base cover 22 having a square outline in plan view. The base cover 22 covers the base portion 18 from above. In this example, as shown in FIGS. 8 and 9, the base cover 22 is formed in a half-crack shape that can be abutted from both sides of the column 1. The half-cracked base cover 22 has the same shape, the inner edge 22 a is abutted against the outer surface of the lower end 1 d of the column 1 and the outer peripheral surface of the lower end of the column cover 11, and the outer edge 22 b is against the floor 16. It is supposed to be placed.

  Here, as shown in FIG. 9A, the inner edge portion 22 a of the base cover 22 includes a U-shaped edge 31 that abuts across the both end surfaces of the column 1 from the outer surface of the column cover 11, and a U-shaped edge. The convex edge 32 (FIG. 8, FIG. 9 (a), (b), (c)) continuing to the one end side of 31 and the concave edge 33 (FIG. 8, FIG. 9) continuing to the other end side of the U-shaped edge 31 (A)). Then, the U-shaped edges 31 are abutted from the outer surface of the column cover 11 along both end surfaces of the column 1 with the pair of half-cracked base covers 22 turned in opposite directions and fitted from both sides of the column 1. In addition, the convex edge 32 and the concave edge 33 that are abutted with each other are fitted up and down (in the state of FIG. 4A). Further, the inner edge portion 22a of the base cover 22 is bent downward in an L-shaped longitudinal section, and a lower end of a part of the inner edge portion 22a is placed on the upper surface of the base portion 18 and other inner edge portions 22a A notch 34 (FIG. 8) is formed in a part facing the positioning protrusion 20, and the lower end of the notch 34 is placed on the positioning protrusion 20 as shown in FIG. Yes.

  Furthermore, as shown in FIGS. 9B to 9H, a plurality of (three in this example) positioning pins 35 project downward from the lower surfaces of the pair of half-cracked base covers 22, On the other hand, a pin insertion hole 36 is formed on the upper surface of the base portion 18 as shown in FIG. 5A, and the positioning pin 35 is fitted in the state where the base cover 22 is fitted from both sides of the column 1 as described above. Each of the base covers 22 is thus positioned and fixed with respect to the base portion 18. In this example, elongated holes 27 (FIG. 5) through which the base mounting bolts 26 are inserted are formed at the four corners of the base portion 18. Further, as shown in FIG. 1, since the head portion 26 a of the base mounting bolt 26 protrudes from the upper surface of the base portion 18, the base cover 22 is lifted upward from the upper surface of the base portion 18. 22 and the head 26a of the base mounting bolt 26 are prevented from interfering with each other. Further, the length of the positioning pin 35 is set so that the tip of the positioning pin 35 is inserted into the pin insertion hole 36 in a state where the base cover 22 is lifted upward from the upper surface of the base portion 18 in this way. ing.

  Next, the mounting structure of the horizontal rail 2 will be described. As shown in FIG. 10 or FIG. 12, the end portion of the horizontal beam 2 made of a square bar is inserted into a part of the lip groove 7 provided on the side surface 1 b of the column 1. A tapping hole 4b is formed in the end surface 2a of the horizontal beam 2, and the tapping hole 4b is tapped from a screw insertion hole 3d provided on one end 3a side of the horizontal beam connecting plate 3 protruding in the direction N perpendicular to the axis of the horizontal beam 2. By screwing the screws 4 a, the one end 3 a side of the horizontal beam connecting plate 3 is fixed to the end surface 2 a of the horizontal beam 2. The crosspiece connecting plate 3 is made of a rigid plate and is sized to be inserted inside the lip groove 7 of the column 1. The vertical width of the horizontal beam connecting plate 3 is formed to be larger than the outer diameter of the end surface 2a of the horizontal beam 2, and is located on the other end 3b side of the horizontal beam connecting plate 3 and away from the end surface 2a of the horizontal beam 2. A screw hole 3c is formed at the position. On the other hand, the support column 1 is formed with a through hole 1a that penetrates in the direction M perpendicular to the support column 1 and opens on both side surfaces 1b of the support column 1 respectively.

  In this example, the tapping screw 4a is screwed into the tapping hole 4b to fix the horizontal beam connecting plate 3 to the end surface 2a of the horizontal beam 2, and the head 4c of the tapping screw 4a is connected to the horizontal beam connecting plate 3. It is supposed to protrude behind. On the other hand, a small hole 1c is formed in the side surface 1b of the support column 1 at a position spaced a predetermined distance S ′ from the lateral hole 1a. As shown in FIG. 11, the predetermined distance S ′ is substantially the same distance as the distance S between the screw insertion hole 3 d and the screw hole 3 c of the crosspiece connecting plate 3. Thereby, when the horizontal beam connecting plate 3 is applied to the side surface 1b of the column 1, the head 4c of the tapping screw 4a is fitted into the small hole 1c, so that the screw hole 3c of the horizontal beam connecting plate 3 is inserted into the column 1. The through hole 1a can be positioned. After that, the through screw 5 passes through the horizontal through hole 1a of the support column 1 from the screw hole 3c of one horizontal beam connecting plate 3 and protrudes from the screw hole 3c of the other horizontal beam connecting plate 3 and is fastened by the nut 6. By doing so, the crosspiece 2 can be connected to the column 1.

  A countersunk screw may be used as the tapping screw 4a so that the head 4c of the tapping screw 4a does not protrude behind the horizontal beam connecting plate 3. In this case, the side surface 1b of the column 1 is positioned for positioning. It is not necessary to provide the small hole 1c, and the hole processing can be omitted.

  Furthermore, in this example, a rotation prevention piece 10 (FIGS. 10 to 12) that abuts against a side surface 2b orthogonal to the end surface 2a of the horizontal beam 2 protrudes from one end portion 3a of the horizontal beam connecting plate 3. The rotation prevention piece 10 prevents rotation of the horizontal beam connecting plate 3 with respect to the horizontal beam 2. In addition, there are two types of the cross rail connecting plate 3, that is, a type in which the rotation preventing piece 10 is provided and a type 3 ′ (FIG. 12) in which the anti-rotation piece 10 is not provided.

  Next, the column cover 11 that covers the lip groove 7 will be described. As described above, the end portion of the cross rail 2 is bridged over a part of the lip groove 7 of the column 1, and the remaining part of the lip groove 7 is covered with the column cover 11. The column cover 11 conceals the horizontal beam connecting plate 3 for connecting the horizontal beam 2 to the column 1, the through screw 5 and the nut 6 to improve the appearance. As shown in FIG. 6, the column cover 11 of this example is formed in a substantially U shape in plan view, and closes the opening between the lip pieces 12 and 12 and is arranged flush with the front surface of the lip piece 12. A front panel portion 13 and a pair of left and right engaging portions 14 bent rearwardly from both left and right ends of the front panel portion 13 are provided. The pair of left and right engaging portions 14 respectively contact a bottom surface of the lip groove 7 (side surface 1b of the support column 1) and a first contact portion 14a for stopping the front and back (left and right direction in FIG. 6) movement of the support column cover 11; A second abutting portion 14b is provided for stopping the movement of the column cover 11 in the front-rear and right-and-left directions (vertical direction in FIG. 6) when it hits the rear corner of the lip piece 12.

  By the way, when the horizontal beam 2 is inserted into a part of the lip groove 7 and connected, in order to move and position the horizontal beam 2, it is necessary to secure a predetermined gap with the lip piece 12. Therefore, a predetermined gap (an end surface line L2 of the horizontal beam 2 in FIG. 1C) is generated on the end surface of the horizontal beam 2. On the other hand, when the end surface of the front panel portion 13 of the column cover 11 is brought into contact with the lip piece 12 without a gap, the end surface line L2 of the horizontal rail 2 is interrupted at the front panel portion 13 and It feels strange and doesn't look good. Therefore, in this example, the support cover 11 is stopped by the first contact part 14a and the second contact part 14b provided in the engaging part 14 so that the front / rear and left / right movements of the support cover 11 with respect to the lip groove 7 are stopped. Therefore, the end surface of the front panel portion 13 of the column cover 11 can be arranged away from the lip piece 12, and therefore, the end surface line L1 (see FIG. c), FIG. 13 (b)) can be formed, and this end face line L1 is inserted into a part of the lip groove 7 and connected to the end face line L2 (FIG. 10 (c), FIG. a)) can be formed substantially in a straight line, and the appearance is improved. Furthermore, as shown in FIG. 1, the lower end part of the support | pillar cover 11 is positioned on the up-down direction by mounting on the positioning protrusion 20 of the support | pillar base 17. As shown in FIG. As shown in FIG. 6, the support cover 11 has a flat front panel 13 type as shown in FIG. 6, and a shielding plate 24 described later at the center of the front panel 13 as shown in FIG. There is a type provided with a groove into which the end of the groove is inserted.

  Next, two methods for constructing a loft fence will be described as examples. In the first method, the support base 17 is fixed to the floor 16, the support 1 is externally fitted to the support insertion shaft 19 of the support base 17 and fixed with screws, and then the horizontal rail 2 is installed, the support cover 11 and The headboard 23 is attached, and the loft fence shown in FIG. 2 or FIG. 3 is constructed. First, a plurality of support pedestals 17 are fixed to the floor surface 16 at a predetermined interval, and the lower ends 1d of the plurality of support posts 1 are fitted into the support insertion shafts 19 of the support support pedestals 17, respectively. At this time, the lower end 1d of the column 1 is placed and positioned on the positioning projection 20 protruding outward from the column insertion shaft 19, and the column 1 and the column insertion shaft 19 are fixed with screws. Thereafter, a cross rail 2 is installed between the columns 1. At this time, when the horizontal rails 2 are arranged on both sides of the column 1 as shown in FIG. 10, the two horizontal beam connecting plates 3 are respectively attached to the end surfaces 2a of the two horizontal rails 2 as shown in FIG. Secure with screws. When the horizontal beam 2 is arranged only on one side of the column 1 as shown in FIG. 12, the end surface 2a of the horizontal beam 2 is screwed to only one of the two horizontal beam connection plates 3. Then, with one horizontal beam connecting plate 3 applied to one side 1b of the column 1 and the other horizontal beam connecting plate 3 applied to the other side 1b of the column 1, the through screw 5 is connected to one horizontal beam. From the screw hole 3 c of the plate for plate 3, it passes through the through hole 1 a of the support column 1, passes through the screw hole 3 c of the other horizontal beam connecting plate 3, and is fastened by the nut 6. Accordingly, as shown in FIG. 10, the horizontal beam 2 can be connected to both sides of the column 1, or as shown in FIG. 12, the horizontal beam 2 can be connected to only one side of the column 1. Thereafter, the headboard 23 is spanned between the tops 1 e of the support columns 1, and the headboard 23 is fixed with the tapping screw 8 as shown in FIG. 14. Here, tapping holes 9 are provided at the four corners of the top portion 1 e of the support column 1 so that the bottom plate portion 23 a of the headboard 23 can be fixed by the tapping screw 8.

  In the second method for constructing the loft fence, first, a frame body composed of the support column 1 and the cross rail 2 is assembled in advance. First, a plurality of columns 1 are placed on the floor 16 so as to be aligned, and the horizontal beam connecting plate 3 fixed to the horizontal beam 2 is fixed to the column 1 in a state where the horizontal beam 2 is arranged between the columns 1. The column 1 and the horizontal beam 2 are connected in the same manner as described above. The horizontal beam 2 is connected to both sides of the column 1 as shown in FIG. 10, or only one side of the column 1 as shown in FIG. The crosspiece 2 is connected to Thereafter, the assembled frame is raised, and the lower ends 1d of the plurality of columns 1 constituting the frame are externally fitted to the column insertion shafts 19 of the column bases 17 fixed to the floor 16 and fixed with screws. The column cover 11 and the headboard 23 may be attached at the same time as the assembly of the frame or after the frame is fixed to the column base 17.

  In either of the first and second construction methods, the shielding plate 24 (FIG. 10B) may be fitted into the lower half of the loft fence for the purpose of blindfolding, soundproofing, or the like. The shield plate 24 is attached by forming a groove on the inner peripheral surface of the frame composed of the left and right support columns 1 and the upper and lower horizontal rails 2 and making the outer peripheral edge of the shield plate 24 a groove. Fit it in.

  According to the above configuration, since the outer surface of the corner portion 21 formed by the base portion 18 of the column base 17 and the base portion 19a of the column insertion shaft 19 is formed on the outer radius surface R having a gentle vertical cross-sectional shape, Even in the case where stress concentrates on the corner portion 21 without the conventional stress concentration edge, it is possible to prevent the occurrence of deformation and cracks, and as a result, the strut having excellent fracture resistance. A pedestal 17 is obtained. Further, since the positioning projection 20 is integrated with the support base 17 and the strength of the corner portion 21 is improved by the outer rounded surface R, it is not necessary to separately provide a dedicated reinforcing member for reinforcing the corner portion 21. The increase in the number of parts can be prevented and the manufacturing cost can be prevented from increasing.

  Further, since the insertion amount of the column 1 is regulated by using the positioning projection 20 protruding from the outer round surface R instead of the outer round surface R, the positioning of the column 1 with respect to the column insertion shaft 19 becomes accurate and easy. 1 and the column insertion shaft 19 are fastened with screws, and the working efficiency is greatly improved.

  Further, in this example, a lip groove 7 is provided on the side surface 1 b of the support column 1, the end of the horizontal beam 2 is inserted into a part of the lip groove 7, the horizontal beam 2 is bridged between the support columns 1, and the remaining lip groove 7 is left. Is covered with the support cover 11 and the lower end of the support cover 11 is placed on the upper end of the positioning projection 20 for positioning. Therefore, the position restriction of the support cover 11 for making up the side surface 1b of the support 1 The positioning projection 20 can be used, and there is an advantage that the work of attaching the column cover 11 to the lip groove 7 becomes easy.

  Further, a base cover 22 is provided which covers the base portion 18 of the column base 17 and whose inner edge portion 22 a is abutted against the outer peripheral surface of the lower end portion 1 d of the column 1. The lower end of the inner edge portion 22 a of the base cover 22 is positioned on the positioning projection 20. Since the inner edge portion 22a of the base cover 22 is abutted against the outer peripheral portion of the lower end portion 1d of the support column 1 without a gap, the entire base portion 18 can be covered by the base cover 22. In addition, the position of the base cover 22 with respect to the base portion 18 can be regulated using the positioning protrusions 20, and there is an advantage that the work of attaching the base cover 22 to the base portion 18 is facilitated.

  In addition, although the case where the support | pillar 1 and the support | pillar insertion axis | shaft 19 were screw-fixed was illustrated in the said embodiment, of course, not only screw fixation but fixation by a rivet etc. may be sufficient.

  The fence of the present invention is not limited to a loft fence in a house, but can be used as a landing for a house or a fence for the second floor. In addition, it can be widely used for outside fences installed outdoors.

It is sectional drawing of the support | pillar insertion axis | shaft of the state which showed one Embodiment of this invention and the lower end part of the support | pillar was fitted. (A) Front view of the same loft fence, (b) is a side view, (c) is a cross-sectional view along line AA of (a), (d) is a plan view, and (e) is a plan view of (a). BB sectional drawing, (f) is CC sectional view taken on the line of (a). It is a front view of the other example of the fence for lofts same as the above. (A) is sectional drawing which looked at the attachment part of the support | pillar and support | pillar base same as the above from the plane, (b) is the side view which fractured | ruptured partially, (c) is a front view. (A) is a plan view of the column base, (b) is a cross-sectional view taken along the line EE of (a), (c) is a cross-sectional view taken along the line FF of (a), and (d) is a cross-sectional view taken along the line D- of (a). It is D line sectional drawing. It is sectional drawing which looked at the half on one side of Fig.4 (a) from the plane. It is a plane sectional view explaining the modification of FIG. (A) (b) is a perspective view of a base cover same as the above. (A) is a bottom view of the same base cover, (b) is a side view, (c) is a cross-sectional view taken along line GG of (a), (d) is a cross-sectional view taken along line HH of (a), e) is a cross-sectional view taken along line II of (a), (f) is an arrow view taken from JJ of (a), (g) is a side view, and (h) is KK of (a). It is line sectional drawing. (A) is a front cross-sectional view of a state in which a horizontal beam is connected to both sides of the same column, (b) is a plan cross-sectional view, and (c) is substantially coincident with the end line of the horizontal beam and the end line of the column cover. It is side surface sectional drawing explaining the made state. It is explanatory drawing of the process which connects a crosspiece to the both sides of a support | pillar same as the above. (A) is front sectional drawing of the state which connected the crosspiece only to the one side of the support | pillar same as the above, (b) is plane sectional drawing, (c) is side sectional drawing. (A) is explanatory drawing of the end surface line of a horizontal crosspiece same as the above, (b) is explanatory drawing of the end surface line of a support | pillar cover same as the above. (A) is the partially broken front view of the mounting state of the same headboard, (b) is a side view, (c) is a top view explaining the tapping hole of a support | pillar.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 support | pillar 1b side of the support | pillar 1d lower end part of 2 support | pillar 7 lip groove 11 support cover 17 support pedestal 18 base part 19 support insertion axis 19a root part 20 positioning protrusion 21 corner part 22 base cover 22a inner edge part of base cover R outside Earl side

Claims (3)

  In the column mounting structure in which the column insertion shaft is integrally projected upward from the base portion of the column base fixed to the base and the lower end of the column is externally fitted and fixed to the column insertion shaft, the column insertion described above The outer surface of the corner part formed by the base part of the shaft and the base part is an outer rounded surface with a gentle vertical cross-sectional shape, and the base part and the base part of the column insertion shaft are located via the outer rounded surface. A positioning projection for positioning and positioning the lower end portion of the support column from the outer rounded surface outward is formed integrally with the outer rounded surface, and the upper end of the positioning projection is formed on the outer rounded surface. A support mounting structure characterized in that the support post is fixed to the support insertion shaft at a position higher than the upper end of the positioning projection while being set to be equal to or higher than the upper end of the positioning protrusion.   A lip groove is provided on the side of the column, the end of the horizontal beam is inserted into a part of the lip groove, the horizontal beam is bridged between the columns, the remaining part of the lip groove is covered with the column cover, and the lip groove 2. The support mounting structure according to claim 1, wherein the support cover is positioned by placing a lower end portion of a support cover fitted on the upper end of a positioning projection of the support base. A base cover is provided to cover the base portion of the column base, the inner edge of the base cover is abutted against the outer peripheral surface of the lower end portion of the column, and the lower end of the inner edge portion is placed on the upper end of the positioning projection of the column base. 2. The support mounting structure according to claim 1, wherein the structure is positioned.

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