JP4044883B2 - Beam connecting bracket for both straight and corner 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 more particularly, to a beam connecting bracket for both a straight line and a corner that can be used as a straight part and a corner part of an exit corner and / or an entrance corner.

  As this kind of beam connection bracket, for example, a joint portion fixed to an adjacent beam end portion and a hemisphere having an inclined contact surface connected to the joint portion so as to be rotatable around the beam axis are provided. A universal joint is known in which a spherical body is formed at the center by fixing the inclined contact surfaces so that they can rotate with respect to each other. At this time, the universal joint changes the angle in both the beam longitudinal direction and the crossing direction. It is supposed that three-dimensional beam connection can be made. In this case, a pair of support columns are arranged upright at both ends in the longitudinal direction of the beam, and the beams are supported on the pair of support columns. Are 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. Further, it is necessary to support the beam in a stable manner, and it is also necessary to stably support the beam bent in a half circle on the support column not only at the straight part 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 linear / corner beam connection bracket which can be used for both of the beam connections at the corners of the entrance, and a beam handrail using the same.

In accordance with the above-mentioned problems, the present invention supports and supports the rotation of the universal joint by using a bracket body that rotatably receives and clamps the spherical body by a pair of opposed standing pieces at the spherical part of the universal joint. Further, the bracket body is supported by the support via the bracket pedestal, while the bracket body can be adjusted with respect to the bracket pedestal, and the extension width can be adjusted with the support at the linear connection portion of the beam with a universal joint ( When the distance of the center line parallel to the support column is set to L, the width of at least ^21/2 × L (route 2 × L) can be used to form the sphere of the universal joint even at the exit corner and / or the entrance corner position. The beam bracket support is made common so that it can be received and clamped in exactly the same way as the straight part, and the pair of standing upright parts of the bracket body are As a result, the contact area with the sphere at the center of the universal joint is increased as much as possible in the exit corner and / or the entrance corner portion, and the receiving and clamping are performed securely, and the horizontal or lifting force acts on the beam. A structure in which the straight connection of the beam can be used for both the exit corner and / or the entrance corner position so that the stability of receiving and holding the upright piece is not impaired by the expansion of the standing piece and the removal of the sphere. In other words, the invention according to claim 1 is provided with a joint portion fixed to an adjacent beam end portion and a hemisphere having an inclined contact surface connected to the joint portion so as to be rotatable about the beam axis. Then, a universal joint formed with a spherical body in the center by fixing the hemispherical inclined contact surfaces to each other so as to be rotatable, and the inside and outside are formed in a curved shape so as to be concentric with the sphere of the universal joint Between the opposed pair of upright pieces An L-shaped bracket body for receiving and holding the body in a rotatable manner and supporting the universal joint at the front position of the column, and a bracket body fixed to the column to support the bracket body so that the width can be adjusted in the front-rear direction. A bracket pedestal, and the width adjustment width of the bracket pedestal in the front-rear direction is 2 ^1/2 × L with respect to the distance L between the center lines parallel to the column outer surface and the column of the universal joint at least in the beam linear position. One standing piece of the opposed pair of the bracket body is formed to be narrow so as to form an angle of 1/4 circle on both sides of the front and rear center line of the universal joint, and the other standing piece Is formed wide so as to form an angle of ¼ circle or more, so that one of the narrow standing pieces is placed on the inner side of the bent universal joint at the protruding corner and the entering corner, and the other wide standing piece is placed. It on the outside on the outside corner side Is is obtained by the beam connecting bracket of the linear and corner serves characterized by comprising as a possible alternate the bracket body in a straight line and the corner of both coupling by freely arranged.

  In addition to the above, the invention according to claim 2 is provided with the bracket body so that the parts can be shared as much as possible when the opposing pair of upright pieces have different widths. The bracket base portion having the common shape of the protruding corner and the entering corner having the wide standing piece, and the narrow standing piece which can be commonly used to be fixed to the bracket base by being retrofitted. 2. The beam connecting bracket for both linear and corner use according to claim 1, wherein the beam connecting bracket can be selected and used for a protruding corner and an entering corner.

  The invention according to claim 3 is the beam coupling fixed to a column so as to provide a beam handrail that can be installed at an inclination angle along the straight portion and the corner portion using these beam coupling brackets. 3. A beam handrail using a linear and corner beam connecting bracket according to claim 1 or 2, wherein the beam is formed by bringing the adjacent beam to the front position of the support by the bracket and supporting it.

  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 has a pair of beams in the longitudinal direction of the beam by arranging the columns upright between the beams and supporting the adjacent beams by the columns. This eliminates complications and supports the beam stably and reliably to ensure stability as a beam handrail. On the other hand, not only connecting the beam at the straight part, but also both the exit corner and the entrance corner, or the exit corner and the entrance corner. It is possible to provide a straight and corner combined beam connecting bracket that can be used for both of them by commonly using one of the corners. At this time, a pair of uprights facing the sphere in the sphere portion of the universal joint is provided. Adjacent beams by securing the flexibility of the beam angle in the longitudinal direction and the crossing direction by using a bracket body that is rotatably received and clamped by a piece In addition to the bracket body, a bracket pedestal that supports it in an adjustable manner is used, and the bracket body is fixed to the support column via the bracket pedestal. The bracket can be supported stably on the support column, and the pair of upright and backward standing pieces of the bracket can securely receive and hold the sphere at the center of the universal joint, not only at the straight part but also at the protruding corner and / or the entering corner. At the same time, the force in the horizontal direction or the lifting direction acts on the beam and the upright piece expands, so that the sphere is removed and the stability of receiving and holding the upright piece is not impaired.

  In addition to the above, the invention described in claim 2 can make the parts as common as possible when the pair of opposed upright pieces have a narrow width and a wide width.

  The invention according to claim 3 can provide a beam handrail that can be installed at any tilt angle along the straight portion and the corner portion by using these beam connecting brackets.

  The present invention will be described in more detail with reference to the drawings. In FIG. 1 to FIG. 12, A is, for example, a beam handrail for an aluminum staircase in which beams are arranged in a plurality of stages, for example, two stages, and 1 is, for example, a circular cross section. A hollow support column 3 is a top beam connected to the support column 1 in the longitudinal direction via a connection bracket 20a for the top, and 4 is a height of the support column 1 via a connection bracket 20b for taking out in front of the support column 1. A handrail beam carried out and supported at an intermediate height between the top beam 3 and the handrail beam 4, which are formed in a common cross section and connected to each other using a common universal joint 10. The common universal joint 10 has a joint part 11 fixed to the ends of adjacent beams 3 and 4 and an inclined contact surface 17 connected to the joint part 11 so as to be rotatable in the direction around the beams 3 and 4. It is assumed that a spherical body 15 is formed in the center by rotating and contacting the inclined contact surfaces 17 of the hemispherical body 16 so as to be rotatable with respect to each other. 3 and 4 can be three-dimensionally connected so that the angle can be freely changed in the longitudinal direction and the crossing direction.

  The connecting brackets 20a and 20b for the top and take-out are each provided with bracket bodies 21a and 21b that rotatably receive and clamp the spherical body 15 of the universal joint 10 between a pair of upright pieces 23 and 24 facing forward and backward. Yes.

  At this time, the bracket body 21a in the top connecting bracket 20a is formed in an I-shaped side surface that supports the universal joint 10 at an upper position of the column 1, and is provided with a fitting leg portion 29 at the lower end thereof. By fitting and fixing the portion 29 to the upper end of the hollow portion of the column 1, the sphere 15 of the universal joint 10 is supported on the center line of the column 1.

The bracket main body 21b of the connecting bracket 20b for taking out has a side L-shape for taking out and supporting the universal joint 10 to the front position of the support column 1, and the connecting bracket 20b further includes a bracket base 30 and the bracket base 30. 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 the front-rear width adjustment width of the bracket base 30 is at least the outside of the support in the beam linear position. In addition to the connection of the beam 4 at the straight portion supported by the connecting bracket 20b for taking out, the width is set to ^21/2 × L with respect to the distance L between the center lines parallel to the side surface and the support column of the universal joint. And / or can be used in common for the beam 4 connection in the corner portion. It is.

  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 includes the joint part 11 and the hemispherical part 16, and the joint part 11 is formed in a short cylindrical shape so as to be fixed by receiving and fitting the end portions of the beams 3 and 4. The beam side is a tapered connecting part 12, and the tip of the connecting part 12 is screwed to a washer 13 whose peripheral edge is hooked in the through-hole of the hemisphere 16 so that the hemisphere 16 can be rotated freely. The hemisphere 16 has an inclined contact surface 17 inclined so as to form an angle of 45 degrees with respect to the center line of the beams 3 and 4, and the tapered shape 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 connecting portion 12 and has the tip fitted to the periphery of the joint portion 11. , 45 degree inclined confrontation in each hemisphere 16 The hemispheres 16 are integrated by a screw in a direction perpendicular to the 45-degree inclined surface, and the universal joint 10 is formed at the center, that is, at the center in the longitudinal direction. A sphere 15 composed of two hemispheres 16 is formed.

  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 of the present example are both hemispherical of the universal joint 10 with one standing piece 23 of the opposing pair. By forming the narrow side so as to form an angle of ¼ circle on both sides of the front and rear center line, and forming the other standing piece 24 wide so as to form an angle of ¼ circle or more, By making the piece 23 freely displaceable on the inner corner side of the bent universal joint 10 at the projecting corner and the entering corner position, and the other wide standing piece 24 on the outer corner side, the bracket body 21a, 1b certain as possible combined in a linear and corner both coupling.

  At this time, the bracket main bodies 21a and 21b are the same for both the top and the take-out brackets. The bracket base portion 22 which is also used as a common shape is formed by the above-mentioned narrow standing piece 23 which can be commonly used for fixing to the bracket base portion 22 so that it can be used selectively for the projecting corner and the entering corner. In this example, these are assumed to be cast and formed by aluminum castings. As a result, the stand-up piece 23 having the narrowest possible width can be fixed to any of the bracket bases 22 as a common part. A pair of opposed upright pieces 23 and 24 are formed before and after the ball 15 is received and sandwiched.

  That is, when viewed with respect to the connecting bracket 20b for taking out, the pair of opposed upright pieces 23 and 24 have an inner diameter that follows the outer diameter of the sphere 15 so that the angle change of the beam 4 can be allowed. In this example, the inner and outer surfaces are formed in a curved shape so as to be concentric with the sphere 15, and the meat stealing is performed in a range that does not affect the receiving and holding of the sphere 15. In this case, the upright piece 23 of the common part has an inclined surface at the side so that the lateral width of the curved surface is large on the outside and small on the inside, and the sphere 15 and the center As a common part, the lower end is fixed as a fixing part for fixing this to the bracket base 22 as a common part. There as having a thick plate-like suspended piece 26 which projects Luo downward.

  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 1/4 circle or more, for example, about 120 to 130 degrees integrally at the upper end, and a vertical portion and a horizontal portion. The portion is provided in an L-shape, and a contact fixing portion 27 for receiving and fixing the hanging piece 26 of the narrow standing piece 23 is provided in the vertical portion, and a connecting piece 28 connected to the bracket base 30 by the horizontal portion is formed. As a thing.

The bracket pedestal 30 has a lower surface as a mounting surface and an upper surface and a side as a pressing surface so that the connecting piece 28 of the bracket base 22 can be fitted and adjusted so that the width of the bracket base 22 can be adjusted. A connecting piece insertion portion 31 that is short so as to be inclined rearward and that has an adjustment long hole 32 that is provided in the protruding direction on the mounting surface, and a column surface contact disposed behind the connecting piece insertion portion 31. It is assumed that an attachment band 35 for connecting both ends to the piece 34 and attaching and fixing to the support column 1 is provided. At this time, the adjustment long hole 32 is provided in the linear connection portion of the beam 4 and the support column 1 in the universal joint 10. The length is set so that the width is at least 2 ^1/2 × L from the tip position of L when the distance of the center line parallel to is L.

  The bracket base portion 22 in the top connecting bracket 20a is a fitting leg portion that is fitted and fixed to the hollow portion at the upper end of the column 1 so as to extend vertically further below the vertical portion provided with the contact fixing portion 27. 29, the contact fixing portion 27 is shared with the contact fixing portion 27 of the connecting bracket 20b for taking out, and the narrow standing piece 23 is used for each of the protruding corner and the entering corner. The common use is possible.

  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.

  In other words, in the case of taking out the connecting brackets 20a and 20b, for example, the fixing pieces at both ends of the mounting band 35 are overlapped with the column surface contact pieces 34 of the base bracket 30 and fixed with screws 36, and the mounting band 35 is fixed. The pedestal bracket 30 is fixed to a predetermined height position of the column 1 by 35, and 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, thereby adjusting the mounting surface. It is assumed that the bracket base 22 is temporarily fixed to the pedestal bracket 30 by temporarily fixing the connecting piece 28 to a predetermined protruding width position within the length range of the long hole by the screw 33 through the long hole 32 for use. In the case of the top, the fitting leg 29 of the bracket base 22 is fitted into the hollow portion from the upper end of the column 1 and temporarily fixed with screws. The holding and holding of the sphere 15 by the standing pieces 23 and 24 is performed for both taking out and for the top, and a narrow standing piece by attaching the sphere 15 to the wide standing 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 and 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.

  FIGS. 13 and 14 are examples in which a single beam 4 is carried forward and supported by the connecting bracket 20b for taking out above the column 1 without using the top beam of the stair railing A, In this example, the cap 2 is attached to the upper end of the support column 1 to close the hollow portion of the support column 1, but the remainder including the structure for supporting the take-out of the beam 4 by the connecting bracket 20b is completely the same as the above example. Since they have the same configuration, the same reference numerals are assigned to the illustrations and the description thereof is omitted.

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, particularly in the connecting bracket 20b for taking out, the length of the adjustment long hole 32 is the distance between the outer surface of the support column 1 at the linear connection portion of the beam 4 and the center line parallel to the support column at the universal joint 10. Since the width is at least 2 ^1/2 × L with respect to L, the beam 4 is brought out and supported to connect the support column 1 and the beam 4 at the straight portion and the corner portion, particularly at the protruding corner and / or the entering corner position. The size of the sphere 15 at the center of the universal joint 10 is different, but with the above configuration, the bracket main body 21b can be adjusted to any desired width within the range obtained by adding 2 ^1/2 × L to the distance L between the bracket body 21b and the column 1 Therefore, the projecting width adjustment of the support column 1 and the sphere 15 is performed so that the straight portion has the minimum L output width and the output corner and / or the input corner portion has an output width of 2 ^1/2 × L. By The connecting bracket 20b is straight portion of the beam 4, external corner and / or interior corner portion, and further can be a beam 4 is taken out supported on post 1 in accordance with any angle between them. In addition, since the pair of up and down standing pieces 23 and 24 are made to have a narrow width of 1/4 circle and a wide width different from that of the circle, not only the straight portion of the beam 4 but also the protruding corner and / or the entering corner. Also in the portion, the sphere 15 at the center of the universal joint 10 is reliably received and clamped, and the upright pieces 23 and 24 are expanded by the force in the horizontal direction or the lifting direction acting on the beam 4, and the sphere 15 is pulled out. 24, the stability of the receiving and clamping of the parts 24 can be kept intact, and a narrow upright piece 23 can be attached to the two bracket bases 22 for the projecting corners and the entering corners by attaching them to the rear of the parts. It can be made as common as possible.

  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. It is a perspective view which shows a beam support state when the connection bracket for taking out is used alone. It is a longitudinal cross-sectional view which shows the relationship between the support | pillar in FIG. 13, and the connection bracket for taking out.

Explanation of symbols

A beam handrail 1 support 3 beam 4 beam 10 universal joint 11 joint part 15 sphere 16 hemisphere 20a connection bracket 20b connection bracket 21a bracket body 21b bracket body 23 standing piece 24 standing piece 30 bracket base

Claims (3)

A joint portion fixed to an adjacent beam end and a hemisphere having an inclined contact surface connected to the joint portion so as to be rotatable about the beam axis are provided to rotate the inclined contact surfaces of the hemisphere relative to each other. The spherical body can be freely rotated between a universal joint formed with a sphere at the center by freely contacting and fixing, and a pair of standing upright pieces formed in a curved shape so as to be concentric with the spherical body of the universal joint. An L-shaped side bracket body for receiving and holding the universal joint at the front position of the column and supporting it, and a bracket base that is fixed to the column and supports the bracket body so that the width of the bracket body can be adjusted in the longitudinal direction. Further, the width adjustment width in the front-rear direction of the bracket base is set to a width of 2 ^1/2 × L with respect to the distance L between the center lines parallel to the column outer surface and the column of the universal joint at least in the beam linear position. bra One standing piece of the opposing pair of the ket body is formed narrow so as to form an angle of 1/4 circle on both sides of the front and rear center line of the universal joint, and the other standing piece is 1/4 circle. By forming the wide angle forming the above angle, the narrow one standing piece is placed inside the inner corner of the bent universal joint at the protruding corner and the entering corner, and the other wide standing piece is placed outside the outer corner. A beam connecting bracket for both straight lines and corners, wherein the bracket main body can be used for both straight lines and corners by being arranged freely.   A bracket base having the above-mentioned bracket main body having two common shapes for the projecting corner and the entrance corner having the above wide standing piece, and the above-mentioned narrow standing piece which can be commonly used to be fixed to the bracket base by being retrofitted. The beam connecting bracket for both straight and corners according to claim 1, wherein the beam connecting bracket can be selected and used for a corner and a corner.   3. The beam using the linear and corner combined beam connecting bracket according to claim 1 or 2, wherein the beam connecting bracket fixed to the column is formed by bringing the adjacent beam to the front position of the column and supporting it. handrail.

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