JP5142977B2 - Protective fence - Google Patents

Description

  The present invention relates to a protective fence installed on a boundary of a pedestrian road, a site boundary line, etc., or along a promenade, a bicycle path, etc., and in particular, a protection in which a panel having a sign or the like sandwiched between columns is attached. It is about a fence.

  In general, protective fences are installed on pedestrian road boundaries, site boundary lines, etc., along promenades, bicycle paths, etc., and between protective fence columns and horizontal bridges built on columns. Various things have been proposed, such as those with panels and signboards attached to them.

  For example, a plate-shaped mounting bracket is engaged with a column such as a wagon so that it can be clamped, and a bolt or the like is detachably provided on the panel through a panel mounting position adjusting slot formed in the mounting bracket. A mounting device has been proposed. This allows the panel to be easily and easily attached to and detached from a support such as a wagon (see Patent Document 1).

  Also in the present applicant, it consists of an attachment member attached to a crosspiece constituting the fence body of the protective fence and an attachment member attached to the crosspiece located at a distance from the crosspiece. Proposed a display attachment structure to a protective fence that is connected so that the dimensions can be adjusted according to the arrangement interval of the crosspieces of the fence body, and at least one of both attachment members is an indicator having a display function. (See Patent Document 2).

Japanese Utility Model Publication No. 57-29691 JP 2002-108224 A

  However, the panel mounting apparatus has the following problems. In other words, when the plate-shaped mounting bracket is wound along the outer peripheral surface of the support column, the winding condition changes. Therefore, a gap or the like is likely to occur even if the portions where the panel mounting position adjusting long holes are perforated are overlapped. The tightening is insufficient, and it is necessary to wrap the mounting bracket every time the mounting operation is performed, which makes the operation complicated.

  The present invention is intended to solve the above problems and provide a protective fence that can firmly support a panel at an arbitrary height between columns.

In order to achieve the above object, the present invention is configured as follows.
That is, the protective fence according to the present invention is a cylindrical shape in which a plate-like panel is erected between support columns erected at an appropriate interval via a support member, the support member is made of an elastic body, and the support column is inserted. And a pair of clamping pieces that clamp the side edges of the panel from the front and back sides, and the cylindrical part is cut out in the vertical direction to form a notch, and the notch The clamping pieces are opposed to each other on both sides of the cylindrical portion and protruded laterally from the cylindrical portion, and the cylindrical portion is fastened to the support column with the notch portion tightened, and the side edge of the panel In this way, the clamping piece is clamped between the holding pieces.

  In the protective fence according to the present invention, the pair of sandwiching pieces each have an upper end wall projecting toward the other sandwiching piece at the upper end thereof, and a projecting piece provided on the upper end wall of the one sandwiching piece includes Further, it may be configured to be fitted to a step provided on the upper end wall of the other holding piece.

  Further, in the protective fence according to the present invention, when the cross beam is installed between the support columns, the support member may be configured such that a concave portion that contacts the upper surface of the horizontal beam is formed at the lower end of the holding piece.

  Further, in the guard fence according to the present invention, the pair of sandwiching pieces may be configured such that a lower end wall projecting toward the other sandwiching piece is formed at the lower end thereof.

  According to the present invention, the cylindrical portion of the support member made of an elastic body is partially cut away in the vertical direction to form a cutout portion, and the sandwiching pieces are relatively opposed to both sides of the cutout portion. And projecting laterally from the tubular portion, and tightening the notched portion to tighten the tubular portion against the column and between the clamping pieces against the side edge of the panel. Therefore, the cylindrical portion is brought into contact with the outer peripheral surface of the support column, and the support member can be firmly attached to an arbitrary position of the support column. In addition, the support member is formed by pressing the clamping piece on the side end surface of the panel. Can firmly support the panel.

  Further, in the protective fence according to the present invention, the pair of sandwiching pieces each have an upper end wall projecting toward the other sandwiching piece at the upper end thereof, and the protrusion provided on the upper end wall of the one sandwiching piece. If the piece is configured to fit into the step provided on the upper end wall of the other holding piece, the side edges of the panel are housed in the holding piece formed in the gate shape, and the holding pieces are vertically It is difficult to shift in the direction, can support the panel more firmly, and can conceal the upper end of the panel to enhance the design.

  Further, in the guard fence according to the present invention, when a horizontal beam is installed between the columns, a support member is provided with a concave portion that is in contact with the upper surface of the horizontal beam at the lower end of the holding piece. Since the member can be placed on the horizontal rail and attached to the column, there is no possibility that the support member is displaced downward with respect to the column, which is more preferable.

  Further, in the protective fence according to the present invention, when the pair of sandwiching pieces are configured such that a lower end wall projecting toward the other sandwiching piece is formed at the lower end thereof, when the panel is disposed between the sandwiching pieces. Since the panel can be temporarily placed between the holding pieces by placing the lower end of the panel on the lower end wall, the workability can be improved.

  Next, the best mode for carrying out the present invention will be specifically described with reference to the drawings.

  That is, FIG. 1 is a perspective view showing a first embodiment of a protective fence P according to the present invention, FIG. 2 is a front view of FIG. 1, FIG. 3 is a cross-sectional view taken along the line AA of FIG. 3 is an exploded view of FIG. 3, FIG. 5 is an explanatory view of FIG. 3, FIG. 6 is a cross-sectional view of the BB cross section of FIG. 2, FIG. 7 is a vertical cross sectional view of the CC cross section of FIG. FIG. 10 is an explanatory view showing a modification of FIG. 1, FIG. 11 is an explanatory view of the main part of the support member, and FIG. 12 is a second embodiment of the protective fence P according to the present invention. FIG. 13 is a front view showing a second embodiment of the protective fence P according to the present invention.

  In the drawings, reference numeral 1 denotes a column that is erected at an appropriate interval, 2 is a support member that is attached to the column 1, and 3 is a panel that is installed between the columns 1 via a support member 2 that is attached to the column 1. The protective fence P according to the present invention is mainly composed of the support column 1, the support member 2, and the panel 3.

  1-9 is explanatory drawing which shows 1st Embodiment of the protection fence which concerns on this invention, FIG. 1 is a perspective view, FIG. 2 is a front view. The support column 1 is made by cutting a metal round tube to an appropriate length, and a steel tube that is stable in strength and inexpensive is preferably used, but is not limited to a steel tube, and is made of aluminum. It may be formed from other metals such as pipes and stainless steel pipes. Moreover, in this embodiment, the upper part of the adjacent support | pillar 1 was connected and it became the gate-type support | pillar, However, One steel pipe was bent and both ends were embed | buried under the ground surface, What crossed between the two support | pillars 1 may be used.

  FIG. 3 is a cross-sectional view taken along the line AA in FIG. 2 and illustrates a mounting structure between the support column 1 and the support member 2. The support member 2 is made of an elastic body, and has a cylindrical portion 4 through which the support column 1 is inserted in the vertical direction, and a pair of clamping pieces 5 that protrude from the cylindrical portion 4 toward the side to clamp the panel 3 from the front and back. And. The sandwiching pieces 5 project from the both sides of the cutout portion 41 of the tubular portion 4 toward the side of the tubular portion 4 so as to face each other. And the side edge of the plate-shaped panel 3 is arrange | positioned between the clamping pieces 5, and it clamps from the front and back of the side edge of the panel 3 with the clamping pieces 5 and 5, and fixes the panel 3. FIG. Accordingly, the cross-sectional shape of the support column 1 is preferably a circular shape in which the mounting direction of the support member 2 can be adjusted, but may be other shapes such as an elliptical shape and a rectangular shape in consideration of design and the like.

  The support member 2 is generally a molded body of synthetic resin having elasticity. Examples of the synthetic resin include ethylene propylene rubber such as EPM and EPDM, acrylic rubber, fluorine rubber, urethane rubber, nitrile rubber, and thermoplastic elastomer. Can be mentioned.

  The panel 3 has a plate shape, and traffic signs, guide signs, advertisements, pictures, etc. are displayed on at least one of the front and back sides. In the present embodiment, the panel 3 is formed by appropriately cutting a long body made of an extruded material of an aluminum alloy into a length. Thus, it is preferable to make the interior hollow so that the thickness in the front-rear direction can be easily designed and the strength can be increased. In addition, as another Example of the panel 3, the form which arrange | positioned the composite board which stuck the metal plate on the metal plate or the resin board at intervals back and forth, and hold | maintained with the frame body can be mentioned. Further, one panel 3 is installed between the support columns 1, but a plurality of panels 3 may be installed side by side.

  Next, the attachment structure of the cylindrical part 4 with respect to the support | pillar 1 is demonstrated in detail. As shown in FIG. 3, the cylindrical part 4 has a notch 41 formed in a part thereof in the vertical direction. As a result, as shown in FIG. 4, the edges of the notches 41 can be widened in the direction in which the edges of the notches 41 are separated from each other. Can be fitted. The inner wall portion 42 preferably has an inner diameter shorter than the outer diameter of the column 1. As a result, the cylindrical portion 4 can be press-fitted to the support column 1 simply by fitting into the support column 1 and does not easily fall downward. In addition, the notch portion 41 can be tightened to the support column 1. On the other hand, when the cylindrical portion 4 is tightened, the edges of the notch portion 41 do not come into contact with each other. Therefore, the cylindrical portion 4 can be reliably pressed against the outer peripheral surface of the support column 1 over the entire circumference of the inner wall portion 42. On the other hand, the cylindrical part 4 can be firmly attached.

  FIGS. 5A and 5B are exploded explanatory views showing a method of fastening the cylindrical portion 4 to the support column 1, wherein FIG. 5A is a cross-sectional view before tightening and FIG. 5B is a state after tightening. In the tightening method, the notch is formed by passing the bolt B1 through the stepped tightening holes 51 and 51 provided in the sandwiching pieces 5 and 5, respectively, tightening the nut N1 and narrowing the interval between the sandwiching pieces 5 and 5. The front and rear intervals between the portions 41 are narrowed and tightened. In the present embodiment, the tightening hole 51 has a stepped shape with the inner diameter reduced, and the head of the bolt B1 and the nut N1 can be accommodated in the tightening hole 51. And the position which left | separated the clamping piece 5 from the both-ends edge 43 of the notch part 41 of the cylindrical part 4 on both sides of the notch end part 44 is made into a base end, and it is directed to the side of the cylindrical part 4 from this base end. Projecting opposite to each other.

  Here, compared with the case where the cylindrical part 4 does not have the notch end part 44 and the sandwiching pieces 5 and 5 protrude from the end edge 43 of the notch part 41 of the cylindrical part 4 toward the side. In this case, if the bolts and nuts are fastened in the same manner, the distance between the front ends of the holding pieces 5 becomes narrower. Then, the inner wall surface side of the end edge 43 is pulled away by the elastic deformation due to the clamping of the clamping piece 5 in addition to the friction with the column 1, and is separated from the column 1, and the inner wall surface 42 of the column 1 and the cylindrical portion 4. There is a risk that the area of pressure contact with will be small.

  Therefore, by having the notch end portion 44, when the interval between the holding pieces 5 and 5 is reduced, the interval between the notch end portions 44 is also narrowed in a state where the inner wall surface is in contact with the outer peripheral surface of the support column 1. Since the inner wall portion 42 can be pressed against the outer peripheral surface of the support column 1 from one end edge 43 to the other end edge 43, the press contact state is effectively achieved and the press contact area is further increased. Can be increased.

  Next, the attachment structure of the panel 3 to the support member 2 will be described in detail. 6 is an exploded explanatory view of a cross section in the BB cross section of FIG. 2, (a) is a cross-sectional view showing a state before attachment, and (b) is a state after attachment. The panel 3 is attached by first inserting the side end of the panel 3 between the sandwiching pieces 5 from the front end side of the sandwiching pieces 5 (a). In this embodiment, since the thickness dimension of the panel 3 is longer than the interval dimension of the notch part 41 of the cylindrical part 4, even if the side edge of the panel 3 is inserted too much into the cylindrical part 4 side, the panel 3 The side edge does not hit the support column 1 beyond the notch 41 and can prevent problems such as deformation and breakage of the support column 1 and the panel 3.

  Subsequently, the bolts B2 are inserted through the panel 3 from the stepped fastening holes 52 provided in the sandwiching pieces 5 and 5 to the opposing fastening holes 52 to tighten the nuts N2, and the sandwiching pieces 5 and 5 are tightened. The side edge of the panel 3 is sandwiched between (b). The tightening hole 52 has a stepped shape like the tightening hole 51, and the head of the bolt B <b> 2 and the nut N <b> 2 can be stored in the tightening hole 52.

  FIG. 7 shows a longitudinal sectional view of the main part in the CC section of FIG. 5 (a). A metal plate 54 that is substantially flush with the inner wall portion 53 is embedded in the inner wall portion 53 of the sandwiching piece 5, and the fastening hole 52 penetrates from the outside of the sandwiching piece 5 through the metal plate 54. Is provided. An inner wall portion 53 of an elastic body in which the metal plate 54 is not embedded is formed on the inner wall portion 53 on the distal end side of the sandwiching piece 5. Thereby, when the side end of the panel 3 is fastened between the sandwiching pieces 5 by the bolt B2 and the nut N2, the front end side of the sandwiching piece 5 whose space is likely to be narrowed is elastically deformed and pressed along the side end of the panel 3. Further, by further tightening, the metal plate 54 is press-fitted along the side edge of the panel 3, and the side edge of the panel 3 can be clamped more firmly. In addition, a force that is pushed downward is applied to the bolt B <b> 2 by the load of the panel 3, but the fastening hole 52 is pushed downward by the metal plate 54, and the bolt B <b> 2 and the nut N <b> 2 are removed from the fastening hole 52. It is possible to prevent such a problem that the side end of the panel 3 is detached from the sandwiching piece 5 by slipping out. In the present embodiment, the tightening hole 51 for tightening the cylindrical portion 4 is also provided through the metal plate 54, and the same effect as described above can be expected for the load applied to the bolt B1. .

In the present embodiment, the metal plate 54 is a steel material, and is preferably not easily deformed by the load of the panel 3 received by the bolt 3, but other metals such as an aluminum alloy and a stainless alloy may be used. Synthetic resins such as polyurethane, AS resin, ABS resin, polyamide, polyacrylonitrile, and phenol resin may be used.

  FIG. 8 is an explanatory view of the upper end portion of the sandwiching piece 5, (a) is an enlarged side view, and (b) is a cross-sectional view in the DD section of (a). An upper end wall 55 protruding toward the other holding piece 5 is provided at the upper end portion of the holding piece 5, and a protruding piece 56 provided on one upper end wall 55 is provided on the other upper end wall 56. A gate-shaped clamping piece 5 is formed by fitting with the portion 57. Thereby, while covering the upper end part of the panel 3 clamped between the clamping pieces 5 and improving designability, position alignment of the clamping holes 51 and 52 of the clamping pieces 5 becomes easy, and workability | operativity can be improved. Note that, as in the present embodiment, a projecting piece 56a is provided on the stepped portion 57 of one upper end portion 55, and a stepped portion 57a is provided on the other upper end portion 55 so as to be fitted to each other. , The effect can be further enhanced.

  FIG. 9 is an explanatory view of the lower part of the sandwiching piece 5, (a) is an enlarged bottom view, and (b) is an enlarged side view. Lower end walls 58, 58 projecting toward the other sandwiching piece 5 are formed at the lower end of the sandwiching piece 5, respectively. Thereby, when inserting the edge part of the panel 3 between the clamping pieces 5, since the lower end of the edge part of the panel 3 can be mounted and temporarily placed in the lower end wall 58, attachment work by one person is possible. This makes it possible to improve the efficiency of the mounting work. Further, if the distance between the lower end walls 58 is made smaller than the thickness of the panel 3, the temporary placement can be more reliably performed.

  10 and 11 show the deformation of the support member 2. As shown in FIG. 10, the protection fence P according to the present embodiment has a horizontal beam 6 installed on a column 1 (a), and a support member 2 is placed on the horizontal beam 6 to attach the panel 3 to the column 1. It is constructed between them (b). FIG. 11 is a schematic explanatory view of the lower part of the support member 2, (a) is a side view, and (b) is a bottom view. At the lower end of the sandwiching piece 5, a recess 59 is formed on which the upper surface of the horizontal rail 6 abuts. In this case, the lower end wall 58 is cut off. Thereby, when inserting the edge part of the panel 3 between the clamping pieces 5, since the lower end of the edge part of the panel 3 can be mounted on the upper surface of the horizontal rail 6, the panel 3 can be temporarily placed, Installation work by a person is possible, and the efficiency of the installation work can be improved. In addition, since there is no possibility that the support member 2 slides downward, the support member 2 can be attached to the support column 1 more stably.

  The cross-sectional shape of the recess 59 is preferably the same shape as that of the horizontal beam 6, but after the horizontal beam 6 is inserted into the recess 59, the horizontal beam 6 does not move from the recess 59 in the front-rear direction. The upper wall part which controls the upward movement of the crosspiece 6 should just be provided.

  When the panel 3 is temporarily placed using the lower wall wall 58 or the recessed portion 59, the column 1 is inserted into the cylindrical portion 4 of the support member 2 and fixed with bolts B1 and nuts N1. You should work. If it carries out like this, since it can control that the clamping pieces 5 and 5 leave | separate in the front-back direction, efficiency improvement of temporary placement work can be achieved.

  FIG. 12 is a front view showing the second embodiment in the protective fence P according to the present invention. The panel 3 may be installed between the support columns 1 arranged at intervals as described above via the support member 2. In this case, the support member 2 can be mounted not only from the side of the support column 1 but also from the upper side. In the latter case, the support member 3 is previously attached to both side ends of the panel 3 and the construction work is performed. May be.

  FIG. 13 is a front view showing a third embodiment in the protective fence P according to the present invention. In the protective fence P in which a large number of support columns 1 are erected in the left-right direction and a cross rail 7 is attached between the upper ends of the support columns 1, a panel 3 is erected through a support member 2 at a part between the support columns 1. Is. In the present embodiment, the panel 3 may be installed at at least one place between the columns 1. For example, in the case of the protective fence P attached to a bicycle road or the like, a form in which a panel 3 for displaying the bicycle road is installed only near the entrance or the exit can be mentioned.

  Since the panel can be firmly supported at an arbitrary height between the columns, not only when installing a new protective fence, but also when installing a panel between existing protective fence columns or between existing vehicle stop columns. It can also be suitably used when a panel is attached to the panel or when the panel is replaced.

It is a perspective view showing a 1st embodiment of protection fence P concerning the present invention. It is a front view of FIG. It is a cross-sectional view in the AA cross section of FIG. FIG. 4 is an exploded view of FIG. 3. It is explanatory drawing of FIG. It is a cross-sectional view in the BB cross section of FIG. It is a longitudinal cross-sectional view in CC section of FIG. It is explanatory drawing of the principal part of a supporting member. It is explanatory drawing of the principal part of a supporting member. It is explanatory drawing which shows the deformation | transformation of FIG. It is explanatory drawing of the principal part of a supporting member. It is a front view which shows 2nd Embodiment of the protection fence P which concerns on this invention. It is a front view which shows 3rd Embodiment of the protection fence P which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Support | pillar 2 Support member 3 Panel 4 Cylindrical part 41 Notch part 43 Edge 44 Notch end part 5 Clamping piece 51,52 Fastening hole 53 Inner wall part 54 Metal plate 55 Upper end wall 56 Protruding piece 57 Step part 58 Lower end part 59 Recess 6 Crosspiece B1, B2 Bolt N1, N2 Nut P Guard fence

Claims (4)

  A plate-like panel is erected between support columns erected at appropriate intervals via a support member, the support member is made of an elastic body, and a cylindrical portion through which the support column is inserted and a side edge of the panel are connected. A pair of clamping pieces sandwiched from the front and back sides, and a part of the cylindrical portion is cut away in the vertical direction to form a cutout portion, and the holding pieces are respectively opposed to both sides of the cutout portion. And projecting laterally from the tubular portion, and tightening the notched portion to tighten the tubular portion against the column and between the clamping pieces against the side edge of the panel. Guard fence characterized by that.   Each of the pair of sandwiching pieces has an upper end wall projecting toward the other sandwiching piece at the upper end thereof, and the projecting piece provided on the upper end wall of the one sandwiching piece is the upper end wall of the other sandwiching piece. The protective fence according to claim 1, wherein the protective fence is adapted to be fitted to a step portion provided in the frame.   3. The support member according to claim 1, wherein a recess is formed at the lower end of the sandwiching piece when the horizontal beam is installed between the columns when the horizontal beam is installed between the columns. The protective fence described.   3. The protective fence according to claim 1, wherein the pair of sandwiching pieces each have a lower end wall that protrudes toward the other sandwiching piece at the lower end thereof.

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