JP3977789B2 - Top beam connecting bracket and beam handrail using the same - Google Patents

Description

  The present invention relates to a bracket for connecting a beam used as a handrail on an inclined surface or a staircase, and in particular, a top beam that can support a top beam at a three-dimensional angle between a straight portion and a corner portion of an exit corner and / or an entrance corner. Concerning connection bracket.

  As this kind of beam connection bracket, for example, a joint part fixed to an adjacent beam end part and a hemisphere having an inclined contact surface connected to the joint part so as to be rotatable in the beam axis direction are provided. A universal joint is known in which a spherical body is formed in the center by mutually abutting and fixing the abutting surfaces in a rotatable manner. At this time, the universal joint changes the angle in both the beam longitudinal direction and the crossing direction. In this case, a pair of struts are erected on both ends in the longitudinal direction of the beam, and the beam is supported on the pair of struts. It shall be connected to each other.

Japanese Patent Application Laid-Open No. 9-125749

  In this case, the beams are supported by a pair of columns in the longitudinal direction, so one column supporting each adjacent beam is placed close to the end of the beam, such as a slope or stairs in front of the entrance. It is easy to give a complicated appearance impression when installed in a place that is easily noticeable, especially when the slopes and stairs from the entrance are bent inward and outward while reaching the road, and the columns appear to overlap. There is also a tendency to increase the complexity.

  In this case, it is conceivable that the column is placed upright at the position of the universal joint between the beams and supported by the bracket. However, the universal joint performs three-dimensional beam connection, and the hemisphere of the center sphere rotates with each other. In order to support the universal joint on the support column, it is possible to ensure a high level of safety as a function of a handrail that a person grabs and walks while allowing changes in the longitudinal and crossing directions of the beam angle due to the rotation. It is necessary to support the beam in a stable manner, and it is also necessary to stably support the beam bent in a quarter circle on the support column not only at the straight portion but also at the protruding corner and the entering corner.

  SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and the problem to be solved is to place both columns in the longitudinal direction of the beam by placing the columns upright between the beams and supporting the adjacent beams by the columns. While eliminating the cumbersome feeling of the beam handrail in the proximity of a pair of supporting columns and supporting the safety of the handrail by providing stable and reliable support, not only the beam connection of the straight part, Alternatively, the present invention provides a top beam coupling bracket that can be used for both of the beam couplings at the corners of the entrance, and a beam handrail using the top beam coupling bracket.

  In accordance with the above-described problems, the present invention uses a bracket body that rotatably receives and clamps the sphere by a pair of opposed standing pieces at the sphere portion of the universal joint, and disposes the support column by arranging fitting legs on the bracket body. The top beam can be connected in a three-dimensional manner while allowing the rotation of the universal joint to be installed on the top, and the above-mentioned pair of up and down standing pieces are not only at the straight part but also at the exit corner and / or the entrance corner part. In addition, the contact area with the sphere at the center of the universal joint is increased as much as possible to ensure receiving and clamping, and a force in the horizontal direction or the lifting direction acts on the beam so that the upright piece expands and the sphere comes out. The universal joint between adjacent beams can be firmly fixed without impairing the stability of receiving and holding the upright piece. That is, the invention according to claim 1 is provided. A joint part fixed to an adjacent beam end part and a hemisphere having a joint surface that is rotatably connected to the joint part and having an inclined contact surface, and the inclined contact surface of the hemisphere can be rotated with respect to each other. A universal joint having a sphere formed in the center by being fixed in contact with the base, and the central sphere of the universal joint is rotatably received and supported between a pair of front and rear standing upright pieces so as to project and support above the support column. A bracket body having a fitting leg portion fitted and fixed to the support column, and a pair of opposed upright pieces of the bracket body, the narrow upright piece forming an angle of ¼ circle in the beam connecting direction. And a wide upright piece having an angle of ¼ circle or more, and the narrow upright piece is used to place the narrow upright piece at the protruding corner and / or the inner corner of the entrance corner, and the wide upright piece is used as the protruding corner of the beam. And / or for placement on the outer corner side of the corner position It is obtained by a top beam connecting bracket, wherein the door.

  In addition to the above, the invention described in claim 2 is that the pair of opposed upright pieces have a narrow width and a wide width, so that the parts can be shared. The bracket body is formed by a linear base bracket base portion having a wide standing piece and having a wide standing piece, and a narrow standing piece which can be fixed to the bracket base by being attached later. The top beam connecting bracket according to claim 1, wherein the top beam connecting bracket is freely selectable.

  The invention according to claim 3 is to provide a beam handrail that can be installed at an angle of inclination along the straight portion and the corner portion of the protruding corner and / or the entering corner using the beam connecting bracket. 3. The beam handrail using the top beam coupling bracket according to claim 1 or 2, wherein the top beam coupling bracket fixed to the column is formed to support and project adjacent beams above the column. is there.

  The present invention uses each of these as the gist of the invention as means for solving the above problems.

  Since the present invention is configured as described above, the invention according to claim 1 is a pair of supporting columns in the longitudinal direction of the beam by placing the columns upright between the beams and supporting the adjacent beams by the columns. This eliminates the complication of the close-up of the pillars in the vicinity and secures the beam as a handrail by connecting and supporting the beam stably and reliably. Bracket body that can be used for both of the corners and the corners of the projecting and entering corners, and can be used for both of them, while the spherical body at the center of the universal joint is rotatably received and clamped by a pair of upstanding pieces facing each other. Is used to secure the flexibility of the beam angle in the longitudinal direction and the crossing direction, and even when a force in the horizontal direction or the lifting direction acts on the beam, the above-mentioned standing piece expands and the sphere is formed. By kicking it, without impaired stability of the receiving clamping of the standing upright pieces, it is possible to provide a top beam connecting bracket so as to be firmly fixed universal joint between adjacent beams.

  In addition to the above, the invention according to claim 2 can be designed to share the parts of the pair of opposed upright pieces having a narrow width and a wide width.

  The invention according to claim 3 can provide a beam handrail that can be installed at an inclination angle along the straight portion and the corner portion using the top beam connecting bracket.

  The present invention will be described more specifically with reference to the drawings. A is a beam handrail for an aluminum staircase, for example, in which a plurality of beams are arranged in two stages, for example, two stages, 1 is a column having a hollow circular section, 3 Is a top beam connected in the longitudinal direction via the top connecting bracket 20a on the support column 1, and 4 is an intermediate part of the height of the support column 1 through the connecting bracket 20b for taking out in front of the support column 1. It is a handrail beam carried out and supported at a height, and the top beam 3 and the handrail beam 4 are formed in a common cross section and are connected to each other by using a common universal joint 10. The universal joint 10 includes a joint portion 11 fixed to the ends of adjacent beams 3 and 4 and a hemisphere 16 having an inclined contact surface 17 rotatably connected to the joint portion 11 in the beam 3 and 4 axis directions. In addition, it is assumed that the inclined contact surface 17 of the hemisphere 16 is rotatably fixed to each other to form a sphere 15 at the center, and the hemisphere 16 is rotated relative to each other so that the beams 3 and 4 are rotated. A three-dimensional connection that allows the angle to be freely set in the longitudinal direction and the crossing direction can be achieved.

  Each of the connecting brackets 20a and 20b for top and take-out includes a bracket body 21 that rotatably receives and clamps the central spherical body 15 of the universal joint 10 between a pair of upright and backward standing pieces 23 and 24. .

  At this time, the bracket main body 21a of the top connecting bracket 20a is formed so as to be provided with a fitting leg portion 29 that protrudes and supports the universal joint 10 above the column 1 and is fitted and fixed to the column 1 at the lower end. The fitting leg 29 is fitted and fixed to the upper end of the hollow portion of the column 1 so that the sphere 15 of the universal joint 10 is positioned on the center line of the column 1.

Further, the bracket body 21b of the connecting bracket 20b for taking out has a side L-shape for taking out and supporting the universal joint 10 at the front position of the support column 1, and the connecting bracket 20b further includes a bracket base 30 and the bracket base 30 is provided. The bracket main body 21b is fixed to the support column 1 and supported so as to be adjustable in the front-rear direction, and at this time, the front-rear direction width adjustment width of the bracket base 30 is at least the universal joint 10 at the beam 4 linear position. The width from the tip position of the distance L of the column 1 to 2 ^1/2 × L (route 2 × L) is not only the connection of the beam 4 in the linear portion supported by the connecting bracket 20b for taking out, / Or so that it can be used for both of these by connecting to the beam 4 at the corner. And Aru.

  That is, the connecting brackets 20a and 20b are the universal joint 10, the bracket main body 21a or 21b, and the bracket base 30 for taking-out, for example, a molded product such as an aluminum casting or a synthetic resin, or a combination of molded parts. It is formed.

  In this example, the universal joint 10 is provided with the joint part 11 and the hemispherical body 16, and the joint part 11 is formed in a short cylindrical shape so that it can be fixed by receiving and fitting the ends of the beams 3 and 4. The beam side is a tapered connecting portion 12 and the tip thereof is screwed to a washer having a peripheral edge hooked on a through-hole of the hemisphere 16 so that the hemisphere 16 can be rotated. The hemisphere 16 has an inclined contact surface 17 inclined at an angle of 45 degrees with respect to the center line of the beams 3 and 4, and the tapered connection on the beam 3 and 4 side. The joint portion 11 is fitted and fixed to the adjacent beams 3 and 4 by using a pair of joint members of the same shape provided with a decorative cover portion 18 that covers the portion 12 and has the tip fitted to the periphery of the joint portion 11. The inclined contact surface 17 of 45 degrees in the hemisphere 16 of The hemispheres 16 are united by screws in a direction perpendicular to the inclined surface of 45 degrees so as to form a universal joint 10 at the center, that is, at the center in the longitudinal direction. A sphere 15 is formed by the hemisphere 16.

  The bracket main bodies 21a and 21b of the present example are for the top where the pair of opposed upright pieces 23 and 24 are common in the same shape and the lower bracket base portion 22 is upright for both the top and take-out bracket bodies. The bracket main bodies 21a and 21b both form an opposing pair of upright pieces at an angle of ¼ circle in the beam connecting direction. The wide standing piece 23 is formed by the narrow standing piece 23 and the wide standing piece 24 having an angle of ¼ circle or more, and the narrow standing piece 23 is disposed on the inner corner side of the protruding corner and / or the corner of the entry, the wide The standing pieces 24 are arranged for the outer corner side of the projecting corner and / or the entering corner position of the beam 3, and these standing pieces 23, 24 are arranged inside the bent universal joint 10 at the projecting corner and the entering corner position, that is, the inner corner side. In Outside of the universal joint 10 to the other wide standing piece 24, that is, disposed on the exterior angle side, there as that made the connection.

At this time, the bracket main bodies 21a and 21b are respectively the same for the top and the one for taking out, and the bracket base portion 22 for linear connection having the wide upright piece 24 and also serving as the entrance corner and the entrance corner respectively. In the present example, these are cast by aluminum castings, and are made possible by using the above-mentioned narrow standing pieces 23 that can be fixed to the bracket base 22 by being attached later. A narrow standing piece 23 is used as a common component for these parts, and can be fixed to any bracket base 22 so as to form a pair of standing pieces 23 and 24 before and after receiving and clamping the sphere 15. .

  That is, when this is seen with respect to the top connecting bracket 20a, the upright pieces 23 and 24 have an inner diameter that follows the outer diameter of the sphere 15 and are open at both ends and above the beam 4 so as to allow the angle change of the beam 4. In this example, the curved surface that is concentric with the sphere 15 in the present embodiment, or a thick member that has been subjected to a stealing measure in a range that does not affect the receiving and clamping of the sphere 15 in this example, When the standing piece 23 of the common part is inside and outside, the lateral width of the curved surface is large on the outside and the side edge is inclined so that it is small on the inside, and the angle of the width is exactly 1/4 circle with the sphere 15 as the center. The thick plate-like hanging piece 2 that protrudes downward from the lower end as a fixing part for fixing it to the bracket base portion 22 as a common part, with a relatively narrow width of 90 degrees. Some as those with.

  The bracket base portion 22 is configured in the same manner as the upright piece 23, and is provided with a wide upright piece 24 having a lateral width angle of ¼ circle or more, for example, about 120 to 130 degrees integrally at the upper end, and vertically extending vertically. And a contact fixing portion 27 for receiving and fixing the hanging piece 26 of the narrow upright piece 23 on one side thereof.

  The bracket base portion 22 is provided with a fitting leg portion 29 that is fitted and fixed to the hollow portion at the upper end of the column 1 so as to extend further downward below the vertical portion provided with the contact fixing portion 27 on one side. It is.

On the other hand, the connecting bracket 20b for taking out has an L-shaped bracket base portion 22 formed of a vertical portion and a horizontal portion, and is provided with a contact fixing portion 27 of the upright piece 23 in the vertical portion, and the horizontal portion is connected to the bracket base 30. A connecting piece 28 is provided, and the connecting piece 28 is inserted into and fixed to a connecting piece insertion portion 31 formed on the bracket base 30 so as to be adjustable in the front and rear widths. The adjustment long hole 32 is made transparent, and the connection piece 28 inserted into the connection piece insertion portion 31 is fixed by the adjustment long hole 32, and is advanced and retracted according to the length of the long hole. Yes, at this time, the length of the long hole is set to the length from L to 2 ^1/2 × L, so that the connecting bracket 20b is also used as the straight portion and the protruding corner portion or the entering corner portion. At this time, the contact fixing portion 27 of the connecting bracket 20b is shared with the contact fixing portion 27 of the top connecting bracket 20b so that the narrow standing piece 23 can be shared between them. It is.

The bracket pedestal 30 in the connecting bracket 20b for taking out has a lower surface as a mounting surface, an upper surface and a side surface as a pressing surface so that the connecting piece 28 of the bracket base portion 22 can be fitted and received in an adjustable manner. A connecting piece insertion portion 31 having an upper surface and a side surface that are short so as to be inclined rearward from the placement surface, and an adjustment long hole 32 provided in the protruding direction on the placement surface; It is assumed that a support band 35 for connecting both ends to the support post 1 arranged at the rear of the portion 31 and attaching and fixing to the support post 1 is provided. At this time, the adjustment elongated hole 32 is provided at the linear connection portion of the beam 4. When the distance between the center line parallel to the column in the column 1 and the universal joint 10 is L, the length is set to be at least 2 ^1/2 × L from the tip position of the L.

  The support of the beams 3 and 4 by the connection brackets 20a and 20b is, for example, fixing the connection brackets 20a and 20b to the support 1 and mounting the spherical body 15 in the universal joint 10 between a pair of opposed upright pieces 23 and 24 before and after that. This is done by the procedure of receiving and clamping by the joint 10 and fixing the joint 11 of the universal joint 10 and the end portions of the beams 3 and 4 in the longitudinal direction. At this time, these are temporarily fixed, for example, before the universal joint 10 is mounted. Or after adjusting the angle of the beam longitudinal direction and the crossing direction of the universal joint 10 temporarily set later, one side of the connecting brackets 20a and 20b or both of the standing pieces 23 and 24, for example, obliquely from the intermediate position to the sphere 15 A screw 25 is screwed in to fix the spherical body 15 and to fix the temporarily fixed member.

  That is, in the above-mentioned top brackets, the connecting brackets 20a and 20b are fixed to the fitting base 29 of the bracket base 22 from the upper end of the column 1 to the hollow portion and temporarily fixed with screws. In this case, for example, the fixed pieces at both ends of the mounting band 35 are overlapped with the column contact piece 34 of the pedestal bracket 30 and fastened with screws 36, and the pedestal bracket 30 is brought to a predetermined height position of the column 1 by the mounting band 35. The connecting piece 28 is inserted into the connecting piece insertion portion 31 so as to place the connecting piece 28 on the mounting surface, and the connecting piece 28 is moved by the screw 33 through the adjustment hole 32 on the mounting surface. It is assumed that the bracket base 22 is temporarily fixed to the pedestal bracket 30 by temporarily fixing it to a predetermined protruding width position within the length range of the long hole. The holding and holding of the sphere 15 by the upright pieces 23 and 24 is performed for both the top and the take-out, and the narrow upright piece by attaching the sphere 15 to the wide upright piece 24 formed on the bracket base 22 temporarily fixed to the support column 1. This is performed so that the hanging piece 26 is temporarily fixed to the contact fixing portion 27 of the bracket base portion 22 by screwing. The longitudinal ends of the beams 3 and 4 are fixed to the universal joint 10 by receiving and fitting the joints 11 on both sides of the universal joint 10 into the hollow portions of the ends of the beams 3 and 4 and temporarily fixing them with screws 25. To do this. The angle adjustment of the beams 3 and 4 by the universal joint 10 is performed by rotating the inclined contact surfaces 17 of the respective hemispheres 16 forming the sphere 15 with respect to each other, and adjusting the angle of the beams 3 and 4 according to the angle in the longitudinal direction and the crossing direction. This is performed so as to set the positions of the contact surfaces 17 with each other, and the final final fastening is performed by final tightening of each screw used for fixing in accordance with an ordinary method.

  At this time, the pair of wide and narrow standing pieces 23 and 24 may be either before or after the straight portion and the bent portion at an angle where the wide standing piece 24 does not interfere with the beam. In the bent part where the wide upright piece 24 is obstructed so as to be perpendicular to each other, particularly at the connecting part of the protruding corner or the entering corner, a narrow upright piece 23 is formed on the inner side between the bent beams 3 and 4. By attaching the bracket base 22 so that the wide upright pieces 24 are positioned outside of 3, 4, the wide upright pieces 24 are at the front outside, the narrow upright pieces 23 are at the back inside, What is necessary is just to arrange | position so that the wide standing piece 24 may be located in the back outer side, and the narrow standing piece 23 may each be located in the front inner side in an entrance corner.

The beam handrail A configured as described above can be installed at an inclination angle along the straight portion and the corner portion by using the connection brackets 20a and 20b. Is placed between the beams 3 and 4 and the adjacent beams 3 and 4 are supported by the support column 1 so that a pair of support columns 1 that support both beams 3 or 4 in the longitudinal direction of the beam are close to each other. While eliminating the complicated feeling of the handrail A and providing stable and reliable support to ensure the safety of the handrail A, not only the beam 3 or 4 at the straight portion but also the beam 3 at the exit corner and / or the entrance corner portion. , 4 can be used in common for both the straight line and the corner so that they can also be used for these connections. At this time, in the connecting bracket 20b for taking out, the length of the adjustment long hole 32 is set to be the distance between the center line parallel to the column 1 in the linear connection portion of the beam 4 and the column in the universal joint 10 as L. In this case, since the width is at least 2 ^1/2 × L from the tip position of the L, by supporting the beam 4 by taking it out, the column 1 at the straight portion and the corner portion, particularly at the protruding corner and / or the entering corner position. And the universal joint 10 to which the beam 4 is connected are different in size between the spheres 15 at the center, and the bracket body 21b is extended between L and 2 ^1/2 × L between the bracket body 21b and the support column 1. Therefore, adjustment of the width of the column 1 and the sphere 15 can be adjusted so that the straight line portion has the minimum width of L and the width of the projected corner and / or the corner of the corner is 2 ^1/2 × L. By doing, Since the beam 4 can be taken out and supported on the support column 1 according to the straight portion, the projecting corner and / or the entering corner portion of the system 4, and any angle between them, simultaneously with the top connecting bracket 20a. It is possible to easily construct a multi-stage beam handrail A by using it.

  In the figure, reference numeral 40 denotes a support bracket used to support the beams 3 and 4 positioned at the end of the beam handrail A in the vicinity of the end in the longitudinal direction on the column 1.

  Although the illustrated example is as described above, in the practice of the present invention, each specific shape and structure of the beam handrail, beam, universal joint, connecting bracket, its bracket body, a pair of standing upright pieces, a bracket base, etc. The material, the relationship between these, the addition to these, and the like can be in various forms as long as they do not contradict the gist of the invention.

It is a front view of a beam handrail. It is a top view of a beam handrail. It is a perspective view which shows the beam support state by the connection bracket for tops. It is a disassembled perspective view which shows the beam support state by the connection bracket for tops. It is a perspective view of the connection bracket for tops. It is the perspective view which changed the direction of the connection bracket for tops. It is a perspective view which shows the beam support state by the connection bracket for taking out. It is a disassembled perspective view which shows the beam support state by the connection bracket for taking out. It is a perspective view of the connection bracket for taking out. It is the perspective view which changed the direction of the connection bracket for taking out. It is a longitudinal cross-sectional view which shows the relationship between a support | pillar and the connection bracket for taking-out. It is a cross-sectional view which shows the relationship between the connection bracket for taking out, a universal joint, and a beam.

Explanation of symbols

A beam handrail
1 prop
3 beam
4 beam
10 universal joints
11 Joint
12 Connecting part
15 Sphere
16 Hemisphere
17 Inclined contact surface
18 Makeup cover
20a Connecting bracket
20b Connecting bracket
21a Bracket body
21b Bracket body
22 Bracket base
23 Standing piece
24 Standing piece
25 screws
26 Hanging piece
27 Contact fixing part
28 connecting pieces
29 mating legs
30 Bracket base
31 Connecting piece insertion part
32 Slot for adjustment
33 screws
34 Prop interview
35 Mounting band
40 Lower support bracket

Claims (3)

  A joint part fixed to an adjacent beam end part and a hemisphere having a joint surface that is rotatably connected to the joint part and having an inclined contact surface, and the inclined contact surface of the hemisphere can be rotated with respect to each other. A universal joint having a sphere formed in the center by being fixed in contact with the base, and the central sphere of the universal joint is rotatably received and supported between a pair of front and rear standing upright pieces so as to project and support above the support column. A bracket body having a fitting leg portion fitted and fixed to the support column, and a pair of opposed upright pieces of the bracket body, the narrow upright piece forming an angle of ¼ circle in the beam connecting direction. And a wide upright piece having an angle of ¼ circle or more, and the narrow upright piece is used to place the narrow upright piece at the protruding corner and / or the inner corner of the entrance corner, and the wide upright piece is used as the protruding corner of the beam. And / or for placement on the outer corner side of the corner position Top beam connecting bracket, wherein.   The bracket body is formed by a linear base bracket base portion having a wide standing piece and having a wide standing piece, and a narrow standing piece which can be fixed to the bracket base by being attached later. The top beam connecting bracket according to claim 1, wherein the top beam connecting bracket is freely selectable.   The beam handrail using the top beam coupling bracket according to claim 1 or 2, wherein the top beam coupling bracket fixed to the column is formed to support and project adjacent beams above the column.

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