JP2005083010A - Beam connecting structure and beam handrail using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a beam connecting structure and a beam handrail using the same capable of connecting a beam on both of upward and front of a strut by making use of a bracket and a beam joint in a state to enable a tilting angle to freely obtain. <P>SOLUTION: A top and front different pair of brackets 4 and 5 commonly having a vertical upward thick projected piece 6 are formed and, at the same time, a pair of beam joints 17 receiving and holding the common thick projected piece 6 in a recessed holding section 23 of an opposite contact piece 21 are formed, the brackets 4 and 5 are selectively installed on the strut 1, the thick projected piece 6 is received to fix the beam 3 to the beam joints 17 fastened with a bolt 27 to enable the tilting angle of the beam 3 to connect them, and the tilting angle of the beam 3 can be freely set with the bolt 27 as a rotational shaft. The opposite contact piece 21 makes butt opposite contact a rising opposite contact surface 22 on the upper part of the recessed holding section 23 to stably make firm connection. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a beam connecting structure for connecting a beam used as a handrail on an inclined surface or a staircase using a bracket and a beam joint, and also relates to a beam handrail using the same.

  As a structure for connecting this kind of beam (or a horizontal frame corresponding to this), for example, a pair of beam joints having front and rear split contact pieces projectingly arranged at the end in the longitudinal direction of the beam are used, and bolts penetrating the column One beam joint is fixed to both ends of the beam and the contact piece and the contact piece of the other beam joint are brought into contact with each other. It is known that the adjacent beams are fixed to the side surfaces of the columns so as to be freely tilted in the longitudinal direction by being arranged so as to be movable, and are connected via the columns.

Japanese Patent Laid-Open No. 9-228697

  In this case, it is possible to connect the beams with the tilting angle freely between the columns, but it is necessary to install and use a pair of beam joints having front and rear split pieces on the side surfaces of the columns with bolts penetrating the columns. As a result, the number of members used to connect the beams increases and the cost increases, and the connecting work on the site tends to become complicated. For example, the connecting structure of the beam used as an inclined surface of a front door or a handrail of stairs Is not necessarily appropriate.

  At this time, it can be assumed that the beam joint is fixed to the support column via the bracket by using the bracket, and the beam is connected, but a pair of beam joints having front and rear split pieces on both sides of the bracket. In order to secure sufficient strength including horizontal load as a beam handrail, the structure for fixing the support column and bracket and bracket and beam joint to each other is also required. It becomes complicated and the work tends to become complicated.

  The present invention has been made in view of such circumstances, and its solution is to use a bracket and a beam joint so that the beam can be connected at an angle of inclination at a column position with a simple structure as much as possible. In addition, the beam can be selectively connected both above and in front of the column, and the members can be made as common as possible, thereby reducing the cost as much as possible and ensuring good work efficiency. The present invention is to provide a beam connecting structure which can be made, and to provide a beam handrail using this connecting structure.

  In accordance with the above-described problems, the present invention provides a bracket for a top for connecting a beam above a support and a front for connecting a beam on the front of a support. Thickening the projecting piece by making the thick projecting piece facing upward common, and tightening the bolted joint by receiving and sandwiching the common thick projecting piece between the halved contact pieces of the beam joint. A pair of top and / or front brackets of a heterogeneous pair is installed on the column, and a pair of beam joints are supported by the brackets. By connecting the beam above and / or the front of the support via the beam joint, the inclination angle of the beam at the upper and / or front of the support can be reduced by the simplest possible structure. It is possible to secure low cost and work efficiency by selective connection and common use of members, that is, the invention according to claim 1 is provided with a vertically upward thick projecting piece in common. A pair of different types of brackets for the top that is placed upright at the upper end of the column by fitting and fixing the leg to the hollow portion at the upper end of the column and the front that is taken out and arranged in front of the column by fixing the band to the side of the column; One of the halves arranged in such a way that the common thick-walled projecting piece is received and sandwiched so as to cover from the front and back and fastened with a bolt so that the bolt can be pivoted up and down with respect to the thick-walled projecting piece. A beam comprising a pair of beam joints before and after projecting and disposing on a beam by fitting and fixing a leg portion to a hollow portion at an end portion in the longitudinal direction of the adjacent beam having a contact piece. Connected structure It is intended.

  In addition to the above, the invention according to the second aspect of the present invention is configured so that the receiving and holding of the thick protrusion of the bracket, the support of the beam joint by this, and the vertical rotation thereof can be stably and reliably performed. The front and rear of the pair of beam joints are set to a depth half the thickness of the thick protruding piece common to the bracket and the upper raised contact surface that is in contact with the contact surface. The beam coupling structure according to claim 1, wherein the beam coupling structure is formed with a concave concave pinching portion that is concave and expands downward.

  In addition to the above, the invention according to claim 3 facilitates the reception and clamping of the thick-walled projecting piece to the beam joint and is in a stable state when using either the top bracket or the front bracket. In order to enable vertical rotation of the beam joint, the upper end of the thick protrusion common to the bracket is an arc surface, and the upper ends of the concave sandwiching portions of the pair of beam joints are The beam connecting structure according to claim 2, wherein the beam connecting structure is an arc surface having the same diameter as the arc surface of the thick protrusion.

  According to a fourth aspect of the present invention, in order to provide a beam handrail using these beam connection structures, the beam handrails according to any one of the first to third aspects are used to make the beam handrails. The beam handrail is characterized in that adjacent beams are connected so as to be freely tiltable in the longitudinal direction.

  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 described in claim 1 is directed to a vertically upward thick wall in which brackets are used as a heterogeneous pair for the top and the front, and the brackets are arranged to support the beam joint. The projecting piece is made common, and the beam joint is received and sandwiched between the half-shaped contact pieces and the bolts are fastened by tightening the bolts. A pair of different types of top and / or front brackets is installed on the column, and a pair of beam joints are supported by the brackets. By connecting the beam via the upper and / or front side of the column, the beam can be selectively tilted at the upper and / or front side of the column with the simplest possible structure. It is possible to provide a possibility with the beam connecting structure to ensure low cost and good work efficiency by sharing of good reliable coupling and member.

  In addition to the above, the invention described in claim 2 can stably and surely receive and clamp the thick projecting piece of the bracket, support the beam joint and thereby rotate it up and down.

  In addition to the above, the invention according to claim 3 facilitates the reception and clamping of the thick-walled projecting piece to the beam joint and is in a stable state when using either the top bracket or the front bracket. The beam joint can be turned up and down.

  The invention according to claim 4 can provide a beam handrail using these beam connecting structures.

  The present invention will be described in more detail with reference to the drawings. A is a beam handrail, 1 is a column, 3 is a beam, 4 and 5 are brackets, and 17 is a beam joint. In FIG. 4 to FIG. 4, the beam 3 adjacent to the front of the support 1 in FIG. 5 to 8 is connected to the upper end of the support 1 so as to be freely tiltable in the longitudinal direction.

  In this example, the column 1 and the beam 3 are each made of a pipe having a circular cross section, and the beam 3 is connected to the front of the column 1 as shown in FIG. The upper end opening is closed.

  The brackets 4 and 5 are a pair of different types for the top and the front which are provided with a common vertical protruding thick protruding piece 6, and the bracket 4 for the top is fitted with the leg portion 9 in the hollow portion of the column 1. The front bracket 5 is arranged upright at the upper end of the column 1 by being fixed, and the front bracket 5 is arranged to be taken out in front of the column 1 by fixing the band 14 to the side surface of the column 1.

  That is, the top and front brackets 4 and 5 are integrally formed by casting, for example, by aluminum die casting or by injection molding a hard resin having excellent strength. A leg portion 9 that fits into the hollow portion 1, a substrate 10 that is arranged above the leg portion 9 and that matches the outer diameter of the support column 1, and a thick-walled projecting piece that stands vertically upward on the substrate 10 In this example, the thick projecting piece 6 has a thickness of about 1 to 2 cm from the front and rear center position of the substrate, and in this example about 1.5 cm. It is a solid thick projecting piece with a rectangular cross-section standing upright at a height of about ˜7 cm.

  The front bracket 5 includes a mounting base 12 that contacts the side surface of the column 1 and a thick protruding piece 6 that stands vertically upward via an inclined portion so as to bend the mounting base 12 upward. It is assumed that the mounting base 14 is provided with a mounting band 14 that is connected to both ends of the mounting base 12 and fixed to the support column 1. At this time, the thick projecting piece 6 has the thickness, height and cross-sectional shape of the bracket for the top. By adopting the same configuration as that of No. 4, this is made common for the top and front use.

  The upper end of the thick projecting piece 6 common to the top and the front is an arc surface 7, and in this example, the arc surface 7 has a radius of about 1 to 2 cm. It is set to have an angle of about ¼ yen to 正面 yen on the front surface at about 0.5 cm.

  On the other hand, the beam joint 17 is received and nipped so as to cover the common thick projection piece 6 from the front and back, and is fastened with a bolt 27, so that the bolt 27 is pivoted up and down with respect to the thick projection piece 6 as a rotation axis. A pair of front and rear parts projectingly arranged on the beam 3 by fitting and fixing the leg part 18 to the hollow part of the adjacent longitudinal end part of the beam 3, each of which has one half-contact piece 21 arranged freely. In this example, the front and rear contact pieces 21 of the pair of beam joints 17 are connected to the upper raised contact surface 22 and the brackets 4, 5. Are formed to include a lower recessed pinching portion 23 that is recessed to a depth of ½ of the thickness of the common thick-walled projecting piece 6 and that expands downward.

  That is, the beam joint 17 is, as in the case of the brackets 4 and 5 described above, formed as a single piece formed by, for example, casting by aluminum die casting or by injection molding a hard resin having excellent strength, and is fitted into the hollow portion of the beam 3. A leg portion 18 to be joined, a cover portion 19 that covers the end portion of the beam 3 fitted with the leg portion 18 on its outer peripheral side, and a base portion 20 that is disposed so as to protrude in the longitudinal direction of the beam 3 , Projecting further from the base 20 in the beam longitudinal direction, forming a circle in the front and bulging in an arc shape in the front-rear direction, and having the contact surface, the raised contact surface 22 and the concave sandwiching portion 23 below it. It is provided with a stepped vertical surface at the top and bottom so as to be arranged, and one of the contact pieces 21 in the front and rear halves. At this time, the raised contact surface 22 with respect to the concave sandwiching portion 23 is provided. Above that is a circle Place in a rib shape surrounding the Jo, the upper end portion of the recessed clamping portion 23 disposed in its lower, there as being an arc surface 7 and the same radius of the circular arc surface 24 of the upper portion in the thick-walled protrusion 6.

  In this example, the concave sandwiching portion 23 is, for example, 0.5 to 1 cm in accordance with the 1/2 thickness of the thick protrusion 6 of the brackets 4 and 5 with respect to the raised contact surface 22 that surrounds the concave sandwiching portion 23. In this example, it is recessed so as to have a depth of about 0.7 to 0.8 cm, and the arcuate surface 7 of the thick-walled projecting piece 6 can be rotated while being in contact with the arcuate surface 24. In this example, the arc surface 24 is set so as to form an angle of about 1/4 to 1/3 in the front, and the downward expansion is, for example, an arc. By extending the tangent line at both ends of the surface 24, this is set to expand at an angle of about ¼ circle around the upper end of the arc surface 24.

  The beam 3 using the pair of different types of brackets 4 and 5 and the pair of front and rear beam joints 17 formed as described above is connected to the beam 9 above the column 1, for example, the leg portion 9 is hollow at the upper end of the column 1. The top bracket 4 is erected on the upper end of the support column 1 by being fitted and fixed to the upper portion, while the raised contact surfaces 22 of the halved contact pieces 21 of the pair of beam joints 17 are surrounded at the top. The beam joints 17 are arranged around the vertically upward thick projecting pieces 6 of the bracket 4 so as to be received and sandwiched by both concave and convex sandwiching portions 23 formed by butt-contacting with each other. The thick projecting piece 6 is fastened integrally, and the leg portion 18 of the beam joint 17 is fitted and fixed to the hollow portion of each adjacent beam 3, and the beam 19 is longitudinally moved by the cover portion 19. Parts may be performed so as to cover at its outer peripheral side.

  Further, when the beam 3 is connected to the front surface of the support column 1, in this example in the form of a forward carry, for example, the mounting base 12 is brought into contact with the side surface of the support column 1 and the mounting band 14 is disposed so as to surround the support column 1, The end of the attachment band 14 is overlapped and fixed to the end of the attachment base 12 and the front bracket 5 is taken out and arranged in front of the column 1, and the rest is a pair of beam joints by bolts 27 in the same manner as described above. What is necessary is just to carry out so that the 17 contact piece 21 and the thick projection piece 6 may be fastened integrally, and the beam joint 17 and the beam 3 may be fitted and fixed.

  At this time, the bolt 27 is fastened from the bolt insertion hole 25 of one contact piece 21 of the pair of beam joints 17 through the through-hole 8 of the thick protrusion piece to the bolt receiving hole of the other contact piece 21. This is done by screwing a bolt 27 to 26. At this time, the angle of the bolt 3 is adjusted by setting the bolt 27 to a temporarily fixed state. It can be set freely. In this example, the bolt insertion hole 25 and the bolt receiving hole 26 are provided to fasten the bolt 27, so that the shape of the contact piece 21 is different between the front and rear. For example, if two bolts are provided on both contact pieces and a nut is installed on the other contact piece side, a pair of beam brackets 17 is provided. Can be common.

  In the figure, 11 is a screw for fixing the column 1 in the bracket 4 for the top, and 13 is installed at both ends of the mounting base 12 so as to overlap with the through holes 15 of the mounting band 14 in the front bracket 5 and fasten the screws 16. The screw receiving hole is shown.

  The connection structure of the beam 3 of the present example configured as described above selectively uses a pair of different brackets 4 and 5, and the beam 3 is connected to the column 1 above the column 1 by a common pair of beam joints 17. / Or can be connected to the front at an angle of inclination, and the contact piece 21 of the pair of beam joints 17 has the raised contact surface 22 received and sandwiched the thick protrusion 6 by fastening the bolt 27. The front and rear contact pieces 21 and the thick protrusions 6 can be firmly and stably integrated by making contact over the concave sandwiching portion 23, and the thick protrusions 6 are covered with the contact pieces 21 and exposed. The appearance can be prevented from being damaged. Since the concave pinching portion 23 that receives and sandwiches the thick projection 6 is expanded downward, the pair of beam joints 17 rotate up and down in a stable state with respect to the thick projection 6 and the beam 3 The tilt angle can be set freely. Further, by making both the concave sandwiching portion 23 and the thick-walled projecting piece 6 arc surfaces 7 and 24 having the same radius, the stability of the vertical rotation of the beam joint 17 with respect to the thick-walled substrate 6 can be further improved and By positioning the beam joint 17 with respect to the projecting piece 6 in a hooked or dropped manner so that the arc surfaces 7 and 24 are in contact with each other, the thick projecting piece 6 and the beam joint 17 are naturally positioned. The connection work of the beam 3 using can be further facilitated.

  The illustrated example is as described above, but the support or beam is appropriately shaped such as an ellipse or a rectangle, and the top bracket leg, the front bracket mounting base and band, the beam joint leg and cover. In accordance with the present invention, including the setting of the shape and the like according to this, a handrail, a support column, a beam, a bracket for the top and the front, its thick protrusion, a beam joint, and its contact piece Each specific structure, shape, material, relationship between these, addition to these, etc., such as the raised contact surface, recessed pinching portion, arc surface, etc. used as necessary, can be in various forms as long as they do not contradict the gist of the invention. Can be.

It is a perspective view which shows the relationship between a support | pillar and the beam of the upper arrangement | positioning. FIG. 2 is an exploded perspective view of FIG. 1. It is a longitudinal cross-sectional view of FIG. It is a cross-sectional view of FIG. It is a perspective view which shows the relationship between a support | pillar and the beam of the front arrangement | positioning. FIG. 6 is an exploded perspective view of FIG. 5. It is a longitudinal cross-sectional view of FIG. It is a cross-sectional view of FIG. It is a perspective view of a beam joint. It is a cross-sectional view of one beam joint. It is a cross-sectional view of the other beam joint.

Explanation of symbols

A beam handrail 1 support 3 beam 4, 5 bracket 6 thick protruding piece 7 arc surface 8 leg 12 mounting base 14 mounting band 17 beam joint 18 leg 21 contact piece 22 raised contact surface 23 recessed pinching portion 24 arc surface 27 volts

Claims (4)

  A vertically-facing thick protruding piece is provided in common, and a leg is fitted and fixed to a hollow portion at the upper end of the column. A pair of different types of front brackets to be taken out and received, and the common thick projection piece is received and sandwiched so as to cover from the front and back, and bolts are fastened to the thick projection piece with the bolt as a rotation axis. A pair of halved contact pieces arranged so as to be pivotable up and down, and a pair of front and rear protrusions arranged on the beam by fitting and fixing a leg part to a hollow part at the end part in the longitudinal direction of the adjacent beam. A beam coupling structure comprising a beam joint.   A pair of beam joint contact pieces are recessed in the front and rear to a depth of ½ of the thickness of the thick protruding piece common to the bracket and the upper raised contact surface that is in contact with the contact surface. 2. The beam coupling structure according to claim 1, wherein the beam coupling structure is formed to include a downward concave sandwiching portion that expands downward.   The upper end of the thick protrusion common to the bracket is an arc surface, and the upper ends of the concave and convex sandwiching portions of the pair of beam joints are an arc surface having the same radius as the arc surface of the thick protrusion. The beam coupling structure according to claim 2.   4. A beam handrail comprising a beam connecting structure according to any one of claims 1 to 3, wherein adjacent beams are connected to each other at the upper end of the column and / or the side surface of the column so as to be freely tiltable in the longitudinal direction.

Images