JP2016089570A - Handrail support fixation structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a handrail support fixation structure capable of firmly and easily fixing without processing on the handrail support.SOLUTION: A handrail support fixation structure fixes a lower end of a handrail support 10 to a handrail installation part by using a bracket 20. The bracket is provided with: a base part 21 fixed to the handrail installation part by an anchor; a column insertion wall 22 erected so as to enclose three sides in the lower end of a column on the base part; and a holding wall 23 erected on the column inserted into the column insertion wall facing an opening side of the column insertion wall at a predetermined interval. A pair of open holes 22c are provided on right and left sides of an upper side opposing to the holding wall in the column insertion wall. The holding wall is moved to the column insertion wall side by fastening a projection projecting from the open holes of a holding member 30 penetrating the open hole by means of screw fixation, so as to hold and fix the lower end of the column.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a structure for fixing a handrail strut for fixing a lower end portion of a handrail strut installed on, for example, a veranda to a handrail installation section using a bracket.

  In general, handrails installed on verandas such as apartment buildings are exposed to wind and rain, so metal parts rust and corrode over time. Phenomena that cause problems in use, such as cracking of concrete, occur.

  Before an accident due to such a cause occurs, it is necessary to replace the veranda handrail itself, but since it is a construction in which residents are already living, construction with a short construction period and low noise is required. .

  Conventionally, the structures described in Patent Documents 1 and 2 are known as a structure for fixing a handrail strut that fixes a lower end portion of a handrail strut to a handrail installation portion using a bracket.

  Patent Document 1 describes that a handrail support is fixed by holding pressure of a pressing screw screwed into a pair of standing walls provided on a bracket, or instead of holding pressure of a pressing screw, or pressing screw In addition to the holding pressure holding, the handrail strut is fixed by fastening a through bolt and a nut arranged via a pair of fixed walls facing each other in a direction orthogonal to the pair of upstanding walls.

  On the other hand, the one described in Patent Document 2 includes a U-shaped bracket having a pair of upstanding walls, a rotating spacer that is rotatably disposed between the pair of standing walls of the bracket, and a pair of rotating spacers. A hollow handrail post having a lower end inserted between the standing walls, a hollow reinforcing material fitted to a hollow lower end portion of the hollow handrail post, a pair of nuts inserted into the hollow portion of the hollow reinforcing material, and a pair of standing brackets It is a structure in which it is pulled and fastened from a wall by fastening bolts fastened to a pair of nuts through through holes provided in a bracket, a rotating spacer, a hollow handrail post, and a hollow reinforcing material, respectively.

Japanese Patent No. 2850292 Japanese Patent No. 5396661

  However, in the structure in which the handrail support is fixed by holding the pressing screws screwed into the pair of standing walls described in Patent Document 1, sufficient strength cannot be obtained, and the handrail support may be deformed.

  A structure in which the handrail column is fixed by fastening through bolts and nuts arranged via a pair of fixed walls facing each other in the orthogonal direction between the pair of standing walls described in Patent Document 1, and the fixing described in Patent Document 2 According to the structure, it is possible to give strength compared to fixing by holding pressure, but there is a concern that the construction of this structure is troublesome because it is necessary to drill holes in the handrail column. is there.

  The present invention has been made in view of the above circumstances, and provides a handrail support fixing structure that can be firmly and easily fixed without processing the handrail support.

  In order to solve the above-described problem, a handrail post fixing structure according to the present invention is a handrail post fixing structure in which a lower end portion of a handrail post is fixed to a handrail installation portion using a bracket. A base portion fixed by an anchor to the installation portion; a column insertion wall erected so as to surround the three sides of the lower end portion of the column on the base portion; and the opening side of the column insertion wall facing the opening side And a pair of penetrating holes on the left and right sides of the upper portion of the column insertion wall facing the clamping wall. A hole is provided, the projecting portion of the sandwiching member that surrounds the outer surface of the sandwiching wall and penetrates the through hole is moved to the column insertion wall side by tightening the projecting portion of the sandwiching member by screw fixing, and the lower end of the column To clamp and fix this The constitution (claim 1). In this case, the sandwiching wall is formed in a semi-cylindrical shape whose outer surface bulges, and the sandwiching member is formed by a U-shaped bolt having an arc portion corresponding to the outer surface of the sandwiching wall. It is preferable that nuts are screwed into thread portions provided at both ends.

  With this configuration, the protruding portion of the clamping member that surrounds the outer surface of the clamping wall and passes through the through-hole provided in the column insertion wall is moved to the column insertion wall side by tightening with a screw. Thus, the lower end of the support can be clamped and fixed. In this case, the sandwiching wall is formed in a semi-cylindrical shape whose outer surface bulges, and the sandwiching member is formed by a U-shaped bolt having an arc portion corresponding to the outer surface of the sandwiching wall, and at both ends of the U-shaped bolt. By screwing the nut into the provided screw portion, the lower end portion of the support can be more securely clamped and the load applied to the support can be dispersed and fixed (claim 2).

  In the present invention, a height fixing screw hole is penetrated on the upper side of the wall portion of the support insertion wall facing the clamping wall, and after the height of the support is adjusted, the height fixing screw hole is inserted into the height fixing screw hole. It is preferable to fix the support column by screwing a fixing screw (claim 3).

  By configuring in this way, after the column inserted between the column insertion wall and the clamping wall is moved up and down to adjust the height, the column height is fixed to be screwed into the height fixing screw hole. The post can be fixed by abutting the screw against the side of the post.

  Further, in the present invention, the angle adjusting screw holes are respectively penetrated through the holding wall and the lower side of the wall portion of the supporting column insertion wall facing the holding wall, and screwed into the angle adjusting screw hole. It is preferable that the angle of the column is adjusted by moving a pair of angle adjusting bolts inserted and retracted to contact the side surface of the column.

  By configuring in this way, the pair of angle adjusting bolts are moved forward and backward to contact the lower end side surface of the column inserted between the column insertion wall and the holding wall. The column can be installed vertically by adjusting the angle of the column with minimal movement.

  In the present invention, when the support column is formed in a hollow shape, the holding wall and the holding wall are opposed to the hollow portion on the lower end side including at least a portion inserted into the support column insertion wall of the support column. A reinforcing member for connecting a side facing the wall portion of the column insertion wall is provided, and angle adjustment is performed on each of the holding wall and a portion facing the lower side of the wall portion of the column insertion wall facing the holding wall. The angle of the column by penetrating through the screw hole and moving the pair of angle adjusting bolts screwed into the angle adjusting screw hole forward and backward to contact the side surface of the reinforcing member protruding from the lower end of the column. Is preferably adjusted (claim 5).

  By configuring in this way, it is possible to give strength to the hollow support column, and it is possible to install the support column vertically by adjusting the angle of the support column without leaving an impression on the support column. In addition, since the pair of angle adjusting bolts are moved forward and backward to come into contact with the side surface of the reinforcing member protruding from the lower end portion of the column inserted between the column insertion wall and the holding wall, The angle of the column can be adjusted with minimal movement.

  In the present invention, the spacer further includes a spacer interposed between the base portion of the bracket and the handrail installation portion, and the spacer has a surface on which the base portion is placed on the support insertion wall and the clamping wall. Are preferably inclined in the opposite direction (claim 6).

  By configuring in this way, even when the inclination angle of the upper surface of the handrail installation part is large, it is possible to install the support column vertically corresponding to the inclination of the upper surface of the handrail installation part.

  In addition, the present invention further includes a cover that surrounds the bracket, and the cover includes a pair of cover halves that surround the left and right halves of the bracket and have a cutout portion that surrounds the support column. The cover half has a joint convex portion and a joint concave portion that engage with each other on the joint surfaces of the cover halves, and has a latch concave portion that engages with a latch projection that projects from the upper surface of the bracket, And it is preferable to have a through-hole of a fixing screw screwed into a screw hole provided in the base portion.

  With this configuration, the cover halves can be joined to each other, and the fixing screw can be screwed into the screw hole provided in the base portion through the through hole provided in the cover half and attached to the bracket. The outside of the bracket can be covered with a cover.

  According to this invention, since it is configured as described above, the following excellent effects can be obtained.

  (1) According to the first aspect of the present invention, the clamping wall can be moved to the column insertion wall side by clamping the clamping member, and the lower end portion of the column can be clamped and fixed. Without this, the support can be firmly and easily fixed.

  (2) According to the invention described in claim 2, in addition to the above (1), the lower end of the support can be more securely clamped and the load applied to the support can be dispersed to prevent the support from being deformed. can do.

  (3) According to the invention described in claim 3, after the column inserted between the column insertion wall and the clamping wall is moved up and down to adjust the height, the column is screwed into the height fixing screw hole. Since the column height fixing screw can be brought into contact with the side surface of the column to fix the column, the height adjustment of the column can be further facilitated in addition to the above (1) and (2).

  (4) According to the invention described in claim 4, in addition to the above (1) to (3), the strut is vertically adjusted by adjusting the strut angle by minimizing the movement of the upper portion in the strut insertion portion. Can be installed.

  (5) According to the invention described in claim 5, in addition to the above (1) to (3), the strength of the hollow column can be given and the angle of the column can be adjusted without leaving an impression on the column. Thus, the support can be installed vertically. Further, the column can be vertically installed by adjusting the angle of the column while minimizing the movement of the upper part in the column insertion part.

  (6) According to the invention described in claim 6, in addition to the above (1) to (5), even when the inclination angle of the upper surface of the handrail installation portion is larger, it corresponds to the inclination of the upper surface of the handrail installation portion. Can be installed vertically.

  (7) According to the invention described in claim 7, the cover halves are joined together, and the fixing screw is screwed into the screw hole provided in the base portion through the through hole provided in the cover half. Since it attaches to a bracket, in addition to said (1)-(6), the exterior of a bracket can be easily covered with a cover after a support | pillar fixation.

It is a perspective view which shows a part of fixing structure of the handrail support | pillar which concerns on this invention. FIG. 2 is an enlarged cross-sectional view of FIG. 1. It is a left view which shows the half of the fixing structure of the handrail support | pillar which concerns on this invention in a cross section. It is a right view which shows the half of the fixing structure of the handrail support | pillar which concerns on this invention in a cross section. It is a disassembled perspective view which shows the structural member of the fixing structure of the handrail support | pillar which concerns on this invention. It is a perspective view which shows another form of the bracket in this invention. The perspective view (a) which shows the cover half body in this invention, sectional drawing (b) which follows the II line of (a), sectional drawing (c) and (a) which follows the II-II line of (a) It is sectional drawing (d) which follows an III-III line. It is the longitudinal cross-sectional view (a) which shows the installation state in case a handrail installation part is a plane, and the IV section expanded sectional view (b) of (a). It is a longitudinal cross-sectional view which shows the installation state in case a handrail installation part inclines. It is a longitudinal cross-sectional view which shows the installation state using the spacer in case a handrail installation part inclines. It is a disassembled perspective view in the case of installing a handrail support | pillar in the protruding corner part of a veranda. It is a disassembled perspective view in the case of installing a handrail support | pillar in the corner of a veranda. It is a longitudinal cross-sectional view which shows the installation state of the different handrail support | pillar of another embodiment of this invention.

  Hereinafter, an embodiment of a handrail support fixing structure according to the present invention will be described in detail with reference to the accompanying drawings. Here, the case where the fixing structure of the handrail support | pillar which concerns on this invention is applied to the handrail for verandas is demonstrated.

  As shown in FIGS. 1 to 5, in the above-described veranda handrail, the lower end portion of the handrail post 10 is fixed to the concrete handrail installation portion 1 of the veranda using a bracket 20.

  The handrail support column 10 (hereinafter referred to as the support column 10) is formed of, for example, a rectangular tubular extruded member made of aluminum alloy, and the inner side surfaces of two opposing sides of the support column 10 are parallel to each other along the longitudinal direction. A fitting groove portion 11 is formed by the ridges 11 a, and a steel plate-like reinforcing member 12 is fitted into both the fitting groove portions 11 on the lower end side of the column 10, and the two surfaces of the column 10 facing each other. The reinforcing member 12 is coupled to the slab. In this case, the lower part of the reinforcing member 12 protrudes downward from the lower end of the column 10, and the upper part is above the part fixed by the bracket 20 in consideration of the column pitch (column span) of the handrail and the load applied to the tip of the column 10. It is attached in a state extending to a position of a predetermined length. By comprising in this way, the hollow support | pillar 10 can be given intensity | strength. In addition, the lower end part of the reinforcing member 12 is inclined (see FIGS. 7 to 9). The reason why the lower end portion of the reinforcing member 12 is inclined is that the installation surface of the handrail installation portion 1 has a draining angle (water gradient) from the outer side toward the veranda side, so that the support column 10 is inclined by adjusting the angle. At this time, this is to prevent the tip of the angle adjusting bolt 28 screwed into the angle adjusting screw hole 27a described later from coming off the lower end of the reinforcing member 12.

  The bracket 20 is formed of an aluminum alloy die-cast, and has a rectangular base portion 21 fixed to the handrail installation portion 1 by four anchors 2 (specifically, anchor bolts 2a), and the base portion 21. Between the column insertion wall 22 erected to surround the three sides of the lower end of the column and the column 10 inserted into the column insertion wall 22 facing the opening side of the column insertion wall 22. And a sandwiching wall 23 that is erected at a predetermined interval (gap). In this case, the pillar insertion wall 22 has a U-shaped plan view including a pair of opposing side wall portions 22a and one end sides of both side wall portions 22a and a wall portion 22b extending upward from the side wall portions 22a. Is formed. The sandwiching wall 23 is located between both side wall portions 22a on the opening side of the column insertion wall 22 and is formed in a semi-cylindrical shape whose outer surface bulges. A column insertion portion 24 is formed by the column insertion wall 22 and the clamping wall 23 configured as described above. A screw receiving portion having a screw hole 21a into which a fixing screw 56 for fixing cover halves 51a and 51b constituting a cover 50, which will be described later, can be screwed on a side portion outside the both side wall portions 22a in the base portion 21. A long hole 21c through which the anchor bolt 2a can be inserted is provided on both sides of the screw receiving portion 21b. In addition, screw holes 21d for fixing an L-shaped liner 61, which will be described later, are provided at four corners of the base portion 21.

  In addition, a pair of through holes 22c are provided on the left and right sides of the upper portion of the support column insertion wall 22 that faces the holding wall 23, and the protrusion of the holding member 30 that surrounds the outer surface of the holding wall 23 and penetrates the through hole 22c. The clamping wall 23 is moved to the column insertion wall 22 side by tightening the portion with screws, and the lower end portion of the column 10 is clamped and fixed. In this case, the clamping member 30 is formed of a U-shaped bolt 30a having an arc portion 30b corresponding to the outer surface of the clamping wall 23, and is fastened to the screw portions 30c provided at both ends of the U-shaped bolt 30a. By screwing the nut 31, the clamping wall 23 is moved to the column insertion wall 22 side by tightening, and the lower end portion of the column 10 is clamped and fixed. In addition, the support | pillar 10 inserted in the support | pillar insertion part 24 of the bracket 20 is located between the wall part 22b of the support | pillar insertion wall 22, and the clamping wall 23, and the lower end of the reinforcement member 12 is inserted. It is inserted so that the inclination of the part is located on the holding wall 23 side.

  A height fixing screw hole 25 is penetrated in an intermediate portion on the upper side of the wall portion 22b facing the holding wall 23 in the column insertion wall 22. A prop height fixing screw 26 (hereinafter referred to as a height fixing screw 26) formed by a hexagon socket head blade screw is screwed into the height fixing screw hole 25. After the support column 10 is inserted into the support column insertion portion 24 of the bracket 20, the tip end portion of the height fixing screw 26 can be brought into contact with the side surface of the support column 10 to fix the support column 10 so that the height can be adjusted.

  On the other hand, angle adjusting screw holes 27a and 27b are formed in the holding wall 23 and the portions of the column insertion wall 22 facing the holding wall 23 that face each other on the lower side of the wall portion 22b. Angle adjusting bolts 28 with hexagonal holes are screwed into these angle adjusting screw holes 27a and 27b. In this case, the angle adjusting screw hole 27a penetrating through the wall portion 22b of the column insertion wall 22 is inclined obliquely downward from the outside toward the inside. The inclination angle is 8 degrees. On the other hand, the angle adjusting screw hole 27 b penetrating the holding wall 23 is provided orthogonal to the holding wall 23. The reason why the angle adjusting screw hole 27a penetrating through the wall portion 22b of the column insertion wall 22 is inclined obliquely downward is that the installation surface of the handrail installation portion 1 is drained from the outer side toward the veranda side (water gradient In order to install the column 10 vertically, when the column 10 is inclined to the outside of the veranda, the tip of the angle adjustment bolt 28 screwed into the angle adjustment screw hole 27a is securely applied to the column 10 This is to allow contact.

  The pair of angle adjusting bolts 28 screwed into the angle adjusting screw holes 27 a and 27 b formed as described above are moved forward and backward to come into contact with the side surface of the reinforcing member 12 protruding from the lower end of the column 10. Ten angles can be adjusted. In this case, in consideration of the draining angle of the installation surface of the handrail installation unit 1 (water gradient: approximately 8 degrees) and the disadvantage that the bracket 20 becomes large, the angle adjustment width of the inclination of the support column 10 is set to 0 to 7 degrees. .

  Therefore, as shown in FIG. 7, when the installation surface of the handrail installation portion 1 is horizontal, the lower end portion of the column 10 is inserted into the column insertion portion 24 of the bracket 20, and the pointed portion of the height fixing screw 26 is inserted. After the height of the column 10 is adjusted by contacting the side surface of the column 10, the pair of angle adjusting bolts 28 screwed into the angle adjusting screw holes 27 a and 27 b are moved forward and backward so that the reinforcement protrudes from the lower end of the column 10. The support column 10 can be fixed in a vertical state by contacting the side surface of the member 12. Thereby, the pillar 10 can be installed vertically by adjusting the angle of the pillar 10 without leaving an impression on the pillar 10.

  As described above, the column 10 into which the reinforcing member 12 is inserted is fixed by the height fixing screw 26, and the reinforcing member 12 not fixed to the column 10 is fixed by the angle adjusting bolt 28.

  Further, as shown in FIG. 8, when the installation surface of the handrail installation portion 1 is inclined within 7 degrees, the lower end portion of the support column 10 is inserted into the support column insertion portion 24 of the bracket 20 and the height fixing screw is inserted. 26, the height of the column 10 is adjusted by abutting the tip of the column 26 on the side surface of the column 10, and then a pair of angle adjusting bolts 28 screwed into the angle adjusting screw holes 27a and 27b are moved forward and backward to move the bottom end of the column 10 It can abut on the side surface of the reinforcing member 12 protruding from the portion and adjust the angle of the support column 10 to fix it in the vertical state. At this time, since the lower end side of the support column 10 is displaced with the height fixing screw 26 positioned on the upper side of the bracket 20 as a fulcrum, the displacement of the support column 10 is reduced on the opening side of the support column insertion portion 24 of the bracket 20. Can do. In this case, a convex arc-shaped arc surface 29 is formed in the vertical direction on the holding wall 23 and the column insertion surface side of the wall portion 22 b facing the clamping wall 23, and the height is fixed to the apex of the arc surface 29. A service screw 26 is located (see FIG. 7).

  In order to cope with the case where the draining angle (water gradient) of the installation surface of the handrail installation unit 1 is larger than 8 degrees, for example, when the draining angle (water gradient) is 15 degrees at the maximum, the base portion 21 of the bracket 20 is used. It is necessary to interpose the spacer 40 between the handrail installation part 1 and the handrail.

  In this case, the spacer 40 is formed by die-casting made of aluminum alloy, and the inclination angle that the surface on which the base portion 21 is placed is inclined in the direction in which the wall portion 22b of the support column insertion wall 22 and the sandwiching wall 23 face each other is 8 degrees. It is formed in the shape of a rectangular block having an inclined surface 41. In addition, the spacer 40 is provided with rectangular holes 42 at four positions symmetrical with respect to the inner center, and the spacer 40 is fixed to the base portion 21 of the bracket 20 at the center portion of the opposite side portion orthogonal to the inclination direction. A boss portion 44 having a through hole 43 through which a spacer fixing screw (not shown) is inserted protrudes, and a long hole 45 through which the anchor bolt 2 a can be inserted is provided on both sides of the boss portion 44. In the spacer 40, the spacer fixing screw (not shown) that is inserted into the through hole 43 of the boss portion 44 is screwed into a screw hole (not shown) provided on the bottom surface of the base portion 21, and the bottom portion of the bracket 20. Fixed to.

  As shown in FIG. 9, when the installation surface of the handrail installation unit 1 is inclined at a maximum of 15 degrees, the support column 10 can be installed vertically using the spacer 40 configured as described above. That is, after the spacer 40 is fixed to the lower portion of the bracket 20 and anchored to the handrail installation portion 1, the lower end portion of the support column 10 is inserted into the support column insertion portion 24 of the bracket 20, and the pointed end portion of the height fixing screw 26 is inserted. After the height of the column 10 is adjusted by contacting the side surface of the column 10, the pair of angle adjusting bolts 28 screwed into the angle adjusting screw holes 27 a and 27 b are moved forward and backward so that the reinforcement protrudes from the lower end of the column 10. It can abut on the side surface of the member 12 and adjust the angle of the support column 10 to fix it in the vertical state.

  The outside of the bracket 20 is surrounded by a cover 50. The cover 50 includes a pair of cover halves 51 a and 51 b that surround the left and right halves of the bracket 20 and have a notch 52 that surrounds the support column 10. In this case, as the cover halves 51a and 51b, for example, an aluminum alloy drawn or a synthetic resin injection molded can be used.

  The cover halves 51a and 51b have a joint protrusion 53a and a joint recess 53b that engage with each other on the joint surfaces of the cover halves 51a and 51b, and a locking projection 20a that projects from the upper surface of the bracket 20. It has a locking recess 54 to be engaged, and a through hole 55 for a fixing screw 56 to be screwed into a screw hole 21 a provided in the base portion 21. In this case, as shown in FIG. 6, one cover half 51 a is provided with a joint convex portion 53 a on one side of the joint surface sandwiching the notch 52 and a joint concave portion 53 b on the other side. The other cover half 51b is provided with a joint recess 53b that can be engaged with a joint projection 53a provided on the joint surface of the cover half 51a on one of the joint surfaces sandwiching the notch 52. A joint convex portion 53a that can be engaged with a joint concave portion 53b provided on the joint surface of the cover half 51a is provided.

  Provided on the joint surface sandwiching the notch 52 of the cover half 51b and the joint convex portion 53a and the joint recess 53b provided on the joint surface sandwiching the notch 52 of the cover half 51a configured as described above. Both the cover halves 51a and 51b can be joined by engaging the joint concave portion 53b and the joint convex portion 53a.

  Further, in the joined cover halves 51a and 51b, the engagement recesses 54 provided in the cover halves 51a and 51b are engaged with the engagement protrusions 20a provided on the upper surface of the bracket 20 (FIG. 7 ( b)), the fixing screw 56 penetrating the through hole 55 is screwed into the screw hole 21a provided in the base portion 21 and fixed. In addition, the thin part 57 protrudes from the opening edge part of the notch part 52 (refer FIG.6 (d)).

  When fixing the column 10 to the protruding corner of the veranda, as shown in FIG. 10, a gap is generated at one anchor fixing portion of the base portion 21 of the bracket 20 on the veranda side. The base portion 21 may be fixed with a stainless steel spacer washer 60 interposed.

  Moreover, when installing the support | pillar 10 in the entrance corner part of a veranda, as shown in FIG. 11, since a clearance gap arises in three anchor fixing | fixed parts of the base part 21 of the bracket 20 by the side of a veranda, three which a clearance gap produces. The base portion 21 may be fixed to the anchor bolt 2a with a stainless steel L-shaped liner 61 interposed therebetween.

  Next, a description will be given of the fixing procedure of the column that removes the existing column and replaces it with a new column. First, the existing struts are removed to remove water and rust stains accumulated in the handrail installation part 1, and then the holes after the existing struts are removed are backfilled with mortar. Thereafter, a hole is drilled at a predetermined position, and the anchor bolt 2a is fixed to the handrail installation portion 1 using a chemical anchor.

  Next, the bracket 20 is set using the spacer 40, the spacer washer 60 and the L-shaped liner 61 in combination. In this case, the spacer 40 is used when the inclination of the installation surface of the handrail installation unit 1 exceeds 7 degrees. Further, the level of the protruding corner when the installation surface of the handrail installation unit 1 is inclined is adjusted using the spacer washer 60. In addition, an L-shaped liner 61 having an insertion long hole 62 for the anchor bolt 2a and a through hole 63 for a fixing screw 64 to the bracket 20 is used for the corner when the installation surface of the handrail installation portion 1 is inclined. Adjust the level. The bracket 20 is fixed by screwing the nut 5 to the anchor bolt 2a with the plain washer 3 and the spring washer 4 interposed therebetween.

  On the other hand, a support column 10 cut to a predetermined length is prepared, and a reinforcing member 12 is inserted into the support column 10 so that the lower end portion of the reinforcing member 12 protrudes from the lower end of the support column 10.

  The strut 10 is inserted into the strut insertion portion 24 of the bracket 20 so that the reinforcing member 12 fitted and fixed to the strut 10 is orthogonal to the wall portion 22b of the strut insertion wall 22 of the bracket 20 and the holding wall 23. The height is adjusted and the tip of the height fixing screw 26 is tightened to the side surface of the column 10. Thereafter, the pair of angle adjusting bolts 28 screwed into the angle adjusting screw holes 27 a and 27 b are moved forward and backward to contact the side surface of the reinforcing member 12 protruding from the lower end portion of the column 10 to adjust the angle of the column 10. And fix it vertically.

  After the height adjustment and the angle adjustment of the support column 10, the screw portions 30 c at both ends of the U-shaped bolt 30 a surrounding the outer surface of the holding wall 23 are connected to the through holes 22 c provided in the wall portion 22 b of the support column insertion wall 22. And a fastening nut 31 is screwed into the projecting portion via a washer 32 and tightened. By this tightening, the clamping wall 23 moves to the column insertion wall 22 side, and the lower end portion of the column 10 is clamped and fixed.

  Next, the cover halves 51a and 51b are moved from both sides of the bracket 20, and the cover halves 51a and 51b are joined by engaging the joint protrusions 53a and the joint recesses 53b of the cover halves 51a and 51b. The locking recess 54 is engaged with the locking projection 20 a protruding from the upper surface of the bracket 20. And the fixing screw 56 which penetrates the through-hole 55 provided in the cover half bodies 51a and 51b is screwed and fixed to the screw hole 21a provided in the base part 21 of the bracket 20.

  As described above, the outside of the bracket 20 to which the column 10 is fixed is surrounded by the cover 50 constituted by the cover halves 51a and 51b. At this time, the support column 10 is positioned in the cutout portion 52 of the cover halves 51a and 51b. As described above, the support column 10 has a lower end side with the height fixing screw 26 positioned on the upper side of the bracket 20 as a fulcrum. Since it is displaced, the displacement of the support column 10 can be reduced on the opening side of the cover 50. Therefore, it is not necessary to enlarge the opening of the cover 50 (specifically, the notch 52). In addition, since the thin part 57 is protrudingly provided in the opening edge part of the notch part 52, the thin part 57 can absorb the inclination accompanying the angle adjustment of the support | pillar 10.

  In addition, since the spacer washer 60 and the L-shaped liner 61 are exposed at the bottom of the bracket 20 at the protruding corner portion and the entering corner portion, in the case of the synthetic resin cover 50, a skirt portion whose lower end is longer than usual is used. Provide and cut and work on the lower end. When the cover 50 is made of an aluminum alloy, the gap is filled with caulking.

  Moreover, in the said embodiment, the screw receiver which has the screw hole 21a of the fixing screw 56 which fixes the cover half bodies 51a and 51b which comprise the cover 50 in the edge part outside the both-sides wall part 22a in the base part 21 of the bracket 20. Although the portion 21b is erected, as shown in FIG. 5A, the base portion 21A of the bracket 20A may be thickened and a screw hole 21a may be provided on the side surface of the base portion 21A.

  With this configuration, the bracket 20A can be made rigid by increasing the thickness of the base portion 21A, so the height of the bracket 20A can be reduced by reducing the height of the support insertion wall 22 and the holding wall 23. be able to. In FIG. 5A, the other parts are the same as those in the above embodiment, so the same parts are denoted by the same reference numerals and the description thereof is omitted.

  Moreover, in the said embodiment, although the reinforcement member 12 is used in order to give intensity | strength to the support | pillar 10, when the support | pillar itself has intensity | strength, the reinforcement member 12 does not need to be used. For example, as shown in FIGS. 12 (a), 12 (b), and 12 (c), a pair of angle adjusting bolts, in which the column 10A is formed into a thick hollow shape and screwed into the angle adjusting screw holes 27a and 27b. 28 can be moved forward and backward to come into contact with the side surface on the lower end side of the column 10A to adjust the angle of the column 10A and fix it to the vertical state. In addition, the lower end of the support column 10A is inclined to prevent the support column 10A from interfering with the handrail installation unit 1 when the support column 10A is inclined by angle adjustment.

  In FIGS. 12A, 12B, and 12C, the other parts are the same as those in the above embodiment, and therefore, the same portions are denoted by the same reference numerals and the description thereof is omitted.

  According to the fixing structure of the handrail strut of the embodiment configured as described above, the clamping wall 23 can be moved to the pillar insertion wall 22 side by clamping the clamping member 30, and the lower end portion of the pillar can be clamped and fixed. The pillars 10 and 10A can be firmly and easily fixed without drilling the pillars 10 and 10A.

  Further, the sandwiching wall 23 is formed in a semi-cylindrical shape with the outer surface bulging, and the sandwiching member 30 is formed by a U-shaped bolt 30a having an arc portion 30b corresponding to the outer surface of the sandwiching wall. By screwing the nuts 31 into the screw portions 30c provided at both ends, the lower ends of the support columns 10 and 10A can be more securely held and fixed, and the load applied to the support columns 10 and 10A can be reduced. It can be dispersed and fixed by the arc portion 30b corresponding to the outer side surface, and deformation of the support column 10 can be prevented.

  In addition, the height fixing screw to be screwed into the height fixing screw hole 25 after the height adjustment is performed by vertically moving the columns 10 and 10A inserted between the column insertion wall 22 and the holding wall 23. The height of the support columns 10 and 10A can be easily adjusted by abutting 26 on the side surfaces of the support columns 10 and 10A and fixing the support columns.

  Moreover, since the lower end side of the support columns 10 and 10A is displaced with the height fixing screw 26 positioned on the upper side of the bracket 20 as a fulcrum, the upper column movement at the insertion portion of the support columns 10 and 10A is minimized. The struts 10 and 10A can be installed vertically by adjusting the angle of 10A.

  In the case of the hollow support column 10, the reinforcement member 12 is fitted and fixed in the hollow portion of the support column 10, whereby the strength of the hollow support column 10 can be given, and the support column 10 can be left without leaving an impression. The column 10 can be installed vertically by adjusting the angle.

  Moreover, when the inclination angle (water draining angle, water gradient) of the upper surface of the handrail installation part 1 is large, the handrail installation part is provided by interposing a spacer 40 having an inclined surface 41 between the bracket 20 and the handrail installation part 1. Corresponding to the inclination of the upper surface of 1, the support column 10 can be installed vertically.

  Further, the cover halves 51a and 51b are joined to each other, and the fixing screw 56 is screwed into the screw hole 21a provided in the base portion 21 through the through hole 55 provided in the cover halves 51a and 51b. By attaching to 20, the outside of the bracket 20 can be easily covered with the cover 50 after the support is fixed.

DESCRIPTION OF SYMBOLS 1 Handrail installation part 2 Anchor 2a Anchor bolt 10, 10A Support | pillar 11 Fitting groove 12 Reinforcement member 20, 20A Bracket 21, 21A Base part 21a Screw hole 22 Support column insertion wall 22b Wall part 22c Through-hole 23 Holding wall 24 Support column insertion part 25 Screw hole 26 for fixing height 26 Screws 27a, 27b for fixing column height Screw hole 28 for angle adjustment Angle adjusting bolt 30 Holding member 30a U-bolt 30b Arc part 30c Screw part 31 Nut 40 for fastening 40 Spacer 41 Inclined surface 50 Cover 51a, 51b Cover half 52 Notch 53a Joint convex part 53b Joint concave part 54 Locking concave part 55 Through hole 56 Fixing screw

Claims (7)

A handrail support fixing structure for fixing the lower end of the handrail support to the handrail installation part using a bracket,
The bracket is
A base portion fixed to the handrail installation portion by an anchor;
A column insertion wall standing on the base unit so as to surround the three sides of the lower end of the column,
There is provided a clamping wall that faces the opening side of the column insertion wall and is erected at a predetermined interval on the column inserted into the column insertion wall,
A pair of through-holes are provided on both the left and right sides of the upper-side portion of the support post insertion wall facing the holding wall,
The projecting portion of the sandwiching member that surrounds the outer surface of the sandwiching wall and penetrates the through hole is moved to the support insertion wall side by tightening by screw fixing, and the lower end of the support is sandwiched and fixed. A structure for fixing a handrail post characterized by that. In the fixing structure of the handrail post according to claim 1,
The clamping wall is formed in a semi-cylindrical shape whose outer surface bulges, and the clamping member is formed by a U-shaped bolt having an arc portion corresponding to the outer surface of the clamping wall, and is formed at both ends of the U-shaped bolt. A structure for fixing a handrail post, wherein a nut is screwed into a provided screw portion. In the fixing structure of the handrail support column according to claim 1 or 2,
A height fixing screw hole is penetrated on the upper side of the wall portion of the support column insertion wall facing the holding wall, and after adjusting the height of the support column, the support height fixing screw is inserted into the height fixing screw hole. A structure for fixing a handrail post, wherein the post is fixed by screwing. In the fixing structure of the handrail support | pillar in any one of Claim 1 thru | or 3,
A pair of angle adjustments that penetrate the angle adjusting screw holes in the holding wall and the lower side of the wall portion of the support wall that faces the holding wall, respectively, and are screwed into the angle adjusting screw holes. A structure for fixing a handrail strut, wherein the angle of the strut is adjusted by advancing and retreating a bolt for contact with a side surface of the strut. In the fixing structure of the handrail support | pillar in any one of Claim 1 thru | or 3,
The support column is formed in a hollow shape, and a hollow portion on the lower end side including at least a portion inserted into the support column insertion wall of the support column includes the holding wall and the support column insertion wall facing the holding wall. Reinforcing members that connect the sides facing the wall are provided, and the angle adjusting screw holes are respectively penetrated in the holding wall and the lower portion of the wall in the column insertion wall facing the holding wall. Adjusting the angle of the column by moving a pair of angle adjusting bolts screwed into the angle adjusting screw hole forward and backward and contacting the side surface of the reinforcing member protruding from the lower end of the column. Characteristic handrail support fixing structure. In the fixing structure of the handrail support | pillar in any one of Claim 1 thru | or 5,
The spacer further includes a spacer interposed between the base portion of the bracket and the handrail installation portion, and the spacer has a surface on which the base portion is placed in a direction in which the support insertion wall and the sandwiching wall face each other. A structure for fixing a handrail post, which is inclined. In the fixing structure of the handrail support | pillar in any one of Claim 1 thru | or 6,
The cover further includes a cover that surrounds the bracket, and the cover includes a pair of cover halves that surround the left and right halves of the bracket and has a notch that surrounds the support column. It has a joint convex part and a joint concave part that engage with each other on the joint surface between the bodies, and has a latch concave part that engages with a latch protrusion that projects from the upper surface of the bracket, and is provided on the base part. A structure for fixing a handrail strut, comprising a through hole for a fixing screw that is screwed into the screw hole.

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