JP2016183475A - Guard fence - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a guard fence for improving design of an appearance in a beam installing structure, and capable of preventing falling-off of a beam.SOLUTION: A guard fence is provided for installing a plurality of columns erected at a predetermined interval and a beam extended between insertion holes formed on the columns via connection means, and in the guard fence, the connection means comprises a base part installed on the column inside and having a base part side first fitting part, and a connection member installed on the beam and having in a connection part a base part side second fitting part freely slidable in response to the base part side first fitting part, and the base part and the connection member are fixed on the column inside in a state of positioning an end part of the beam on the column inside.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a protective fence installed on a road, a plaza, and the like.

  Conventionally, as a protective fence, for example, a pillar having a circular hole formed on the side surface, and a spherical contact surface that is slidably in contact with a part of the pillar in the circular hole are provided at the tip, and further, the end of the beam. A bracket with a beam mounting portion at the base end, a washer in contact with the inside of the spherical contact surface of the bracket, and a tightening bolt that penetrates the washer and the spherical contact surface of the bracket. The thing which fixed the washer and the bracket to the support | pillar is known (refer patent document 1).

Japanese Patent No. 2860757

  However, in the above structure, the fixing bolt is inserted through the insertion hole of the bracket and the long hole of the beam, and the nut is screwed to fix the bracket and the beam. Therefore, the fixing bolt appears on the outer surface of the bracket. Therefore, there is a concern about the deterioration of the designability, and there is a risk that the beam may fall out of the bracket because the fixing bolt falls off due to vibration, impact, mischief, etc. acting on the beam, and there is a concern about the danger. .

  Therefore, the present invention solves such problems, and provides a protective fence capable of improving the design of the appearance of the columns and beams and preventing the beam from dropping off. Let it be an issue.

  In order to solve the above-described problem, the guard fence according to claim 1 of the present invention is spanned between a plurality of support columns standing at a predetermined interval and an insertion hole formed in the support column. A guard fence for attaching a beam to a beam via a coupling means, wherein the coupling means is installed inside the support column and has a base portion having a base-side first fitting portion, and is installed on the beam, the base-side first A connecting member having a base-side second fitting portion that is slidable corresponding to the fitting portion in the connecting portion, and the base and the connecting portion in a state where the end of the beam is located inside the column. The member is fixed inside the support column.

  Moreover, the guard fence of Claim 2 of this invention is the guard fence of Claim 1, The said connection member is the press part side 1st fitting part formed in the said connection part, and the said press part. A pressing portion having a pressing portion side second fitting portion that is slidable with respect to the first side fitting portion, and sandwiching and fixing the connecting portion between the base portion and the pressing portion. .

  According to a third aspect of the present invention, there is provided the protective fence according to the first or second aspect, wherein the beam with respect to the connecting member is fixed in the left-right direction when the base portion and the connecting member are fixed. The virtual movable region is set to be smaller than the insertion region when the shaft portion of the connecting member is inserted through the beam.

  Moreover, the guard fence of Claim 4 of this invention is a guard fence of any one of Claims 1-3. WHEREIN: The said insertion hole has the opening area | region which the said connection member can penetrate. Is.

  Moreover, the protection fence of Claim 5 of this invention is a protection fence of any one of Claim 2-4, The said connection member becomes slidable with respect to the said connection part. A cover portion that covers and fixes at least a part of the pressing portion is provided.

  In the guard fence of the present invention, both ends of the beam are accommodated inside the column, and the column and the beam are fixed by fixing the base and the connecting member inside the column. It is possible to improve the design of the external appearance of the two and to prevent the beam from dropping off.

It is a front view of the protection fence in the Example of this invention. It is a partial section perspective view of a protection fence in the example of the present invention. It is a cross-sectional view of the protective fence in the Example of this invention. It is a disassembled perspective view of the connection member of the protection fence in the Example of this invention. It is a partial omission cross-sectional perspective view at the time of installing the protection fence in the Example of this invention. It is a partially abbreviate | omitted sectional view of the connection means of the protection fence in another Example of this invention.

  Hereinafter, the protection fence 10 in embodiment of this invention is demonstrated based on drawing. As shown in FIG. 1, the protective fence 10 is erected on the boundary between a roadway and a sidewalk, for example, and is provided to protect a pedestrian from an automobile. The guard fence 10 includes a plurality of support columns 20 erected on the ground G with a predetermined interval, a beam 30 spanned between insertion holes 21 formed in the support columns 20, and the support columns 20 and 30. Connecting means for connecting.

  In the protection fence 10, the column 20 side is set above the protection fence 10, and the ground G side is set below the protection fence 10. In addition, the longitudinal direction of the beam 30 is the left-right direction of the protective fence 10, and the direction orthogonal to the axial direction of the beam 30 is the front-rear direction.

  The support column 20 is erected substantially perpendicular to the ground G, and is integrally formed with an aluminum extruded material so as to have an elliptical cross section, for example. Further, as shown in FIGS. 2 and 3, the support 20 is formed with an insertion hole 21 for inserting the beam 30 in the left-right direction, and is used for the support so as to be orthogonal to the axis of the insertion hole 21. A mounting hole 22 for mounting the cap 24 is formed in the front-rear direction. The attachment hole 22 is a working space when the beam 30 is installed on the support column 20. In addition, an attachment portion 23 for installing the base portion 40 constituting the connecting means is provided inside the support column 20.

  As shown in FIG. 3, the mounting portion 23 is a space for accommodating the mounting plate 41 by protruding toward the inner side of the support column 20 so that the substantially L-shaped wall portions face each other. Is forming. Further, as shown in FIG. 1, the attachment portion 23 is integrally formed from one end to the other end along the axial direction of the support column 20, but is not limited to this, and is provided separately at a predetermined location. Of course you can.

  As shown in FIG. 4, for example, the beam 30 is integrally formed of an aluminum extruded material so as to have an elliptical cross section, and connecting members 50 constituting connecting means are provided at both ends along the axial direction of the beam 30. An insertion hole 31 for installation is formed. Further, notch portions 32 corresponding to the outer shape of the beam cap 34 are provided in the vicinity of both ends of the beam 30, and the notch portion 32 is orthogonal to the axis of the insertion hole 31 and extends to the insertion hole 31. An attachment hole 33 for fixing the connecting member 50 inserted through the beam 30 is formed in the vertical direction so as to communicate with each other.

  The mounting hole 33 is preferably formed in a long hole shape in the left-right direction of the beam 30 so that the beam 30 can be finely adjusted in the left-right direction with respect to the support column 20. In addition, the notch 32 is desirably provided on the lower side of the beam 30 in order to improve the design of the beam 30, but is not limited thereto.

  The connecting means mainly includes a base portion 40 installed on the support column 20 and a connecting member 50 installed on the beam 30. In addition, the base 40 and the connecting member 50 have a vertical angle adjustment mechanism that allows a predetermined angle in the vertical direction to be adjustable around an axis that is orthogonal to the axis of the column 20 and an axis that is orthogonal to the axis of the column 20. A longitudinal angle adjustment mechanism is provided that allows a predetermined angle in the longitudinal direction to be adjusted as a center.

  As shown in FIGS. 2 and 3, the base 40 is fixed so as to stand on a mounting plate 41 slidable with respect to the mounting portion 23 of the support column 20. The mounting plate 41 is installed on the support column 20 by appropriate fixing means such as screwing, adhesion, welding, and fitting. That is, the base 40 is installed so as to protrude inward in the column 20.

  Moreover, the base side 1st fitting part 42 which comprises an up-down angle adjustment mechanism is formed in the edge part located in the inner side direction of the support | pillar 20 in the base 40. FIG. The base-side first fitting portion 42 is, for example, a concave first receiving portion having a taper, and a screw hole 43 for fixing the connecting member 50 is provided in the front-rear direction at a substantially central portion. Further, the base 40 is fixed at a position corresponding to the mounting hole 22 so that the mounting work by the fixing bolt B3 inserted through the mounting hole 22 of the column 20 can be easily performed.

  As shown in FIG. 4, the connecting member 50 includes a shaft portion 51 inserted through the beam 30 and a connecting portion 52 provided at one end of the shaft portion 51. The connection portion 52 includes a base-side second fitting portion 53 that constitutes a vertical angle adjustment mechanism, and a front-rear angle adjustment mechanism.

  The shaft portion 51 is formed, for example, in a substantially rod shape so that the shaft portion 51 can be inserted into the insertion hole 31 of the beam 30, and is provided with a connecting portion 52 at one end and a screw hole 54 at the other end. For example, as shown in FIG. 3, the connecting portion 52 protrudes to one side with respect to the axis of the shaft portion 51 and has a base-side second fitting portion 53 corresponding to the base-side first fitting portion 42. Thus, a through hole 55 is formed in a substantially central portion of the connecting portion 52 in the front-rear direction perpendicular to the axis of the shaft portion 51. The base side second fitting portion 53 is, for example, a first abutting portion formed so as to protrude in a substantially spherical shape, and is configured to be slidable with respect to the first receiving portion.

  Further, a pressing portion side first fitting portion 56 constituting a front-rear angle adjusting mechanism is provided at a location facing the base side second fitting portion 53 of the connecting portion 52. The pressing portion side first fitting portion 56 includes, for example, a concave second receiving portion having a substantially spherical shape. Further, a pressing portion 57 having a pressing portion side second fitting portion 58 corresponding to the pressing portion side first fitting portion 56 is provided. The pressing portion side second fitting portion 58 is, for example, a second abutting portion formed in a substantially hemispherical shape, and is configured to be slidable with respect to the second receiving portion.

  That is, the pressing portion 57 is configured to be slidable with respect to the connecting portion 52 and is accommodated in the pressing portion side first fitting portion 56, and is substantially centered with respect to the axis of the shaft portion 51. Through holes 59 are formed in the front-rear direction perpendicular to each other, and are connected and fixed to the base portion 40 of the support column 20 with fixing bolts B3. Thereby, in a state where the base 40 and the pressing portion 57 are connected and fixed, the vertical angle adjusting mechanism (the base side first fitting portion 42, the base side second fitting portion 53) and the front and rear angle adjusting mechanism (the pressing portion side first) The connecting member 50 can be slidable via the fitting portion 56 and the pressing portion side second fitting portion 58), and the angle can be adjusted in a predetermined direction.

  Moreover, the cover part 60 which covers at least one part of the holding | suppressing part 57 is fixed to the connection member 50 with the screw | thread B1 so that the pressing part 57 accommodated in the holding | suppressing part side 1st fitting part 56 may not drop off. Is done. The cover portion 60 is formed, for example, in a substantially C shape so as to cover the outer peripheral edge portion of the pressing portion 57 so as not to hinder the fixing bolt B3 inserted into the through hole 59 of the pressing portion 57. Of course, it is not limited to this.

  Next, a construction method of the protective fence 10 will be described. Since the work of attaching the beam 30 to the support column 20 is performed a plurality of times, only an example of attaching one beam 30 will be described. First, the two struts 20 are erected on the ground G with a predetermined interval. At this time, the predetermined interval is set such that the connecting members 50 installed at both ends of the beam 30 can be inserted into the column 20.

  Next, as shown in FIG. 5, the shaft portion 51 of the connecting member 50 is inserted into the insertion hole 31 of the beam 30, and the fixing bolt B <b> 2 is screwed into the screw hole 54 of the shaft portion 51 through the washer W and the mounting hole 33. Thus, the connecting member 50 is temporarily fixed to the beam 30. At this time, by forming the attachment hole 33 in the shape of a long hole, the connecting bolt 50 can be moved in the axial direction of the beam 30 by moving the fixing bolt B2 in the long hole, and fine adjustment can be performed.

  Then, the connection member 50 at one end of the beam 30 is inserted into the insertion hole 21 of one of the columns 20 to place the connection member 50 inside the column 20, and one end of the beam 30 is arranged inside the column 20. Further, the connecting member 50 at the other end of the beam 30 is inserted into the insertion hole 21 of the other support column 20 so that the connecting member 50 is arranged inside the support column 20, and the other end of the beam 30 is arranged inside the support column 20. Let the state be

  And the base side 2nd fitting part 53 (1st contact part) of each connection part 52 is made to contact | abut to the base side 1st fitting part 42 (1st receiving part) of each base 40, and fixing bolt B3 is inserted from the attachment hole 22 of the support column 20 into the support column 20, and is also inserted through the through hole 59 of the pressing portion 57. At this time, the base-side second fitting portion 53 (first contact portion) is slidably contacted with the base-side first fitting portion 42 (first receiving portion). A predetermined angle in the vertical direction of the connecting member 50 can be adjusted around an axis perpendicular to the axis. Further, since the pressing portion side second fitting portion 58 (second contact portion) is slidably accommodated with respect to the pressing portion side first fitting portion 56 (second receiving portion), A predetermined angle in the front-rear direction of the connecting member 50 can be adjusted around an axis perpendicular to the axis.

  Then, after each angle adjustment, the fixing bolt B3 is screwed into the screw hole 43 of the base portion 40, and the connecting member 50 is fixed to the base portion 40 with the connecting portion 52 held between the base portion 40 and the pressing portion 57. Finally, after confirming that both ends of the beam 30 are positioned inward of the base 40 from the insertion hole 31, the fixing bolt B2 is tightened to the mounting hole 33 of the beam 30, and the beam By attaching the cap 34 to the notch 32 and attaching the support cap 24 to the attachment hole 22, the work of attaching one beam 30 is completed.

  The support cap 24 and the beam cap 34 are provided with small holes 25 and 35 so that a tool such as a pin or a wrench can be inserted when removing the cap from the support 20 or the beam 30. By removing the cap, the internal maintenance can be performed.

  As described above, according to the protective fence 10 according to the present invention described above, both ends of the beam 30 are accommodated in the support column 20 and fixing means such as fixing bolts are not exposed to the outer surfaces of the support column 20 and the beam 30. Therefore, the design of the external appearance in both can be improved.

  Even if the fixing bolt B2 on the beam 30 side is removed, the virtual movable region D1 in the left-right direction of the beam 30 with respect to the connecting member 50 is the axial portion of the connecting member 50 as shown in FIG. 51 is set so as to be smaller than the insertion region D2 when the beam 51 is inserted through the beam 30 and is supported by the shaft portion 51 without coming off the shaft portion 51 of the connecting member 50, so that the beam 30 falls off. Can be prevented.

  Further, the base side second fitting portion 53 (first contact portion) of the connecting member 50 is brought into contact with the base side first fitting portion 42 (first receiving portion) of the base portion 40 inside the support column 20. In this state, it is only necessary to fix with the fixing bolt B3, so that the mounting operation can be facilitated and the workability can be improved.

  The present invention is not limited to the configuration of the above-described embodiment, and can be implemented by appropriately changing the shapes, dimensions, materials, and the like of the support column 20, the beam 30, the base 40 and the connecting member 50 in the connecting means. It is. For example, the base 40 may be configured to be installed on the inner wall of the support column 20 without using the mounting plate 41. That is, it is only necessary that the base 40 is installed inside the support column 20 so as to protrude inward.

  Further, the base 40 is installed in the front-rear direction so that the attachment work by the fixing bolt B3 inserted through the attachment hole 22 of the support column 20 can be easily performed, and the base-side first fitting portion 42 is provided so as to face the attachment hole 22. However, it is not limited to this. For example, the base side first fitting portion 42 of the base portion 40 can be installed so as to face the upper side or the lower side of the support column 20, or can be installed in an oblique direction having a predetermined angle.

  In addition, in the fixed state of the base 40 and the connecting member 50, both ends of the beam 30 are accommodated inside the column 20, but both ends are located in an internal space formed inside the column 20. Of course, it may be located in the region where the insertion hole 21 is formed without being limited thereto. In other words, both ends of the beam 30 should not be positioned outside the support column 20.

  Further, the base side first fitting portion 42 (first receiving portion) of the base portion 40, the base portion 40 side second fitting portion 53 (first contact portion) of the connecting portion 52, and the pressing portion side first fitting portion 56. (Second receiving portion) The pressing portion side second fitting portion 58 (second abutting portion) of the pressing portion 57 is not formed in a smooth concave shape, a substantially spherical shape, or the like, and the operator can make a certain angle. In order to recognize that the adjustment has been performed, a convex portion, a concave portion, a protrusion, a groove shape, or the like can be appropriately provided on the surface.

  Further, as shown in FIG. 6, the base side first fitting portion 42 of the base portion 40, the base portion 40 side second fitting portion 53, the pressing portion side first fitting portion 56, and the pressing portion 57 of the connecting portion 52 are pressed. The portion-side second fitting portion 58 can be combined with an appropriate shape configured to be slidable.

  For example, as shown in FIG. 5A, the base-side first fitting portion 42 of the base portion 40 has a convex substantially spherical shape, and the base-side second fitting portion 53 of the connecting portion 52 has a concave substantially spherical shape. As a result, they can be configured to be slidable with respect to each other. In addition, the pressing portion side first fitting portion 56 of the connecting portion 52 has a convex substantially spherical shape, and the pressing portion side second fitting portion 58 of the pressing portion 57 has a concave substantially spherical shape so that they can slide with each other. It can also be configured as follows. Furthermore, if it is set as the structure which attaches the press part 57 with the fixing bolt B3 with respect to the connection part 52, it can also be set as the structure which does not use the cover part 60. FIG.

  Further, as shown in FIG. 5B, the base side first fitting portion 42 of the base portion 40 has a convex substantially spherical shape, and the base side second fitting portion 53 of the connecting portion 52 has a concave substantially spherical shape. In addition, the pressing portion side first fitting portion 56 of the connecting portion 52 has a concave substantially spherical shape, and the pressing portion side second fitting portion 58 of the pressing portion 57 has a convex substantially spherical shape. It can also be configured to be movable. That is, the shape of the beam 30 is not particularly limited as long as the beam 30 can be adjusted to a predetermined angle in the vertical direction and the front-rear direction about an axis orthogonal to the axis of the column 20.

  Of course, a part of the configuration can be omitted, and a part of the configuration can be extracted.

DESCRIPTION OF SYMBOLS 10 Guard fence 20 Support | pillar 21 Insertion hole 30 Beam 40 Base part 42 Base part side 1st fitting part 50 Connection member 51 Shaft part 52 Connection part 53 Base part side 2nd fitting part 56 Holding part side 1st fitting part 57 Holding part 58 Holding part side second fitting part 60 cover part

Claims (5)

A protective fence for attaching a plurality of support columns standing upright with a predetermined interval and a beam spanned between insertion holes formed in the support columns via a connecting means,
The connecting means is installed inside the support column and has a base portion having a base-side first fitting portion, and a base-side first portion installed on the beam and slidable corresponding to the base-side first fitting portion. A connecting member having two fitting parts in the connecting part,
The protective fence, wherein the base and the connecting member are fixed inside the column in a state where the end of the beam is positioned inside the column.   The connecting member includes a pressing portion side first fitting portion formed in the connecting portion, and a pressing portion side second fitting portion that is slidable with respect to the pressing portion side first fitting portion. The protective fence according to claim 1, further comprising: a base portion, wherein the connecting portion is sandwiched and fixed by the base portion and the pressing portion.   In the fixed state of the base and the connecting member, the virtual movable region in the left-right direction of the beam with respect to the connecting member is set to be smaller than the insertion region when the shaft portion of the connecting member is installed through the beam. The guard fence of Claim 1 or Claim 2 to be performed.   The said insertion hole is a guard fence of any one of Claims 1-3 which has an opening area | region which can insert the said connection member. The said connection member is provided with the cover part which covers and fixes at least one part of the said press part which becomes slidable with respect to the said connection part. Guard fence.

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