JP5100320B2 - Protective fence - Google Patents

Description

  The present invention relates to a protective fence installed at a pedestrian road boundary or the like, and particularly to a protective fence in which a support cap is attached to an upper end opening of a support.

  In general, a column used for a guard fence, a guard fence, or the like is often made of a cylindrical steel material, and various column caps have been proposed in order to close an opening of the column upper portion. In general, a pillar cap is fixed to the upper part of the pillar by welding or the like, or fitted to the upper part of the pillar.

  And as the shape of the head of the column cap, for example, a fence column cap mounting structure related to a column cap formed in a dome shape or a spherical shape in consideration of design is proposed (for example, Patent Document 1).

In addition, a rail receiving head is provided on the upper part of the cylindrical support, and at the intersection of the rail receiving head and the cylindrical rail, the saddle-shaped rail receiver is attached to the rail receiving head, and the cylindrical support is provided inside the saddle-shaped rail receiver. There has been proposed a road guard fence in which ends of cylindrical rails installed between them are fixed (for example, Patent Document 2).
JP-A-9-31932 JP-A-11-122718

  However, as shown in Patent Document 1, when such a support cap is attached, generally, the support post, the horizontal beam, etc. are pipe-shaped, so there are few flat parts as a whole of the fence. When installing safety equipment such as a retrofit, it was difficult to secure a place for installation. In addition, since the support cap protrudes from the horizontal beam material that extends in the horizontal direction on this fence, when looking at the scenery through this fence from a running car, etc. May be damaged.

  Further, as in Patent Document 2, when the cylindrical rail is supported by the rail receiving head provided on the upper portion of the cylindrical support, the height of the rail receiving head can be adjusted to the height of the cylindrical rail. Although it is possible to improve the scenery, when a car or the like collides with the cylindrical rail, the rail receiving head may come off from the cylindrical column and the collision load may not be sufficiently absorbed.

  The present invention is intended to solve the above-described problems and provide a protective fence that can stably place safety equipment such as a guide sign and also considers landscape.

In order to achieve the above object, the present invention is configured as follows.
That is, the guard fence according to the present invention is such that the beam material is attached to the support columns that are erected at intervals, via the support member, and the upper surface of the head of the support cap attached to the upper end of the support post is flat in the center. A flat portion is formed, an inclined portion that is inclined downward from the flat portion toward the head periphery is formed, and a belt-like portion that extends from the flat portion toward the support member is formed. It is characterized by.

According to the present invention, “a flat flat portion is formed at the center of the head of the support cap, and a belt-like portion extending from the flat portion toward the support member is formed. Safety equipment such as signs can be placed stably, and since an inclined part is formed that slopes downward from the flat part toward the periphery of the head, rainwater travels through the inclined part during rainy weather. There is no risk of falling down and collecting rainwater, and since the flat part is located at the upper end of the inclined part, it is easy to see the safety equipment placed on it, and the column cap may protrude upwards more than necessary. A remarkable effect such as “No” can be expected.

  In the guard fence according to the present invention, if the belt-shaped portion having the same width as the support member is formed from the flat portion toward the support member, the flat portion of the support cap, the belt-shaped portion, and the upper surface of the support member are straddled. In this way, safety equipment such as a relatively large guide sign can be placed, and the support member and the support member are continuous by the belt-like portion, so that a sense of unity between the two appears in appearance. Will also be excellent.

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

  1 is a plan view showing an embodiment of a protective fence according to the present invention, FIG. 2 is an enlarged longitudinal sectional view of the main part of FIG. 1, and FIG. 3 is a first embodiment of the support cap according to the present invention. FIG. 4 is an explanatory view of the column cap of FIG. 3, FIG. 5 is an explanatory view showing an embodiment of the method of attaching the column cap according to the present invention, and FIG. 6 is an installation state of the column cap according to the present invention. FIG. 7 is a perspective view showing a modification of the support cap according to the present invention, FIG. 8 is an enlarged partial side view showing a second embodiment of the protection fence according to the present invention, and FIG. It is an expanded partial side view which shows the 3rd form of implementation of the protection fence which concerns on.

  In the drawings, 1 is a support, 2 is a beam material installed between the support 1, 3 is a support member for supporting the beam 2 on the support 1, 4 is a through bolt penetrating the support in the lateral direction, and 5 is a support. The guard fence P according to this embodiment is mainly composed of a support column 1, a beam member 2, a support member 3, a through bolt 4, and a support cap 5. The support member 3 and the support cap 5 is attached to the column 1 through the through bolt 4.

  First, FIG. 1 is a front view showing an embodiment of a protective fence P according to the present invention. The support column 1 is a steel pipe having a circular cross section, and is erected on the ground at an appropriate interval. A beam member 2 is installed between the columns 1. In this embodiment, the support column 1 is a steel pipe having a diameter of 114.3 mm and a thickness of 4.5 mm, and the beam member 2 is a steel pipe having a diameter of 48.6 mm and a thickness of 3.2 mm. Weather-resistant paint finish. The beam material 2 is mounted in three steps at a height of 150 mm above and below the center height of 600 mm. In addition, the beam members 2 are connected to each other at the connecting portions of the side end portions adjacent to each other via connecting fittings 21 inserted and fixed to the end portions of the respective beam members 2 as shown in FIG. .

  Next, FIG. 2 is a partially enlarged view of the vertical cross section of FIG. 1, (a) is a main part of the AA cross section of FIG. 1, (b) is a main part of the BB cross section of FIG. c) shows the main part of the longitudinal section of (a). The support member 3 includes a flat plate-like vertical plate portion 31 fixed to the support column 1 and a support portion 32 on which the beam material 2 is supported, as shown in FIG. The vertical plate portion 31 is in contact with the support column 1 on the back side, and a through bolt 4 penetrating the support column 1 in the lateral direction is penetrated. By tightening the nut A screwed into the through bolt 4, The vertical plate portion 31 is fixed to the outer peripheral surface of the support column 1, whereby the support member 3 is attached to the support column 1.

As shown in FIG. 1 and FIG. 2A, the support portion 32 of the support member 3 includes an upper plate portion 33 projecting forward from an upper end portion and a lower end portion on the front surface side of the vertical plate portion 31. The beam member 2 is supported by the lower plate portion 34. In this embodiment, the connection part 21 which connects the beam material 2 is arrange | positioned between the upper board part 33 and the lower board part 34, and penetrates the upper board part 33, the connection part 21, and the lower board part 34 up and down. The nut C of the fixing bolt B is tightened, and the connecting portion 21 is sandwiched between the upper plate portion 33 and the lower plate portion 34. The end portions of the upper plate portion 33 and the lower plate portion 34 are respectively formed with bent portions 35 and 36 that are bent inward, and the outer diameters of the bent portions 35 and 36 are approximately the same as the outer diameter of the beam member 2. It has been. With these structures, the connection part 21 is concealed inside the support part 32, and the front side of the beam member 2 and the front side of the support part 32 are substantially flush with each other, so that the design can be improved. Note that the beam member 2 may be inserted and sandwiched between the upper plate portion 33 and the lower plate portion 34.

  Further, when the distance between the columns 1 is relatively long, a support member in which a column 1A is provided between the column 1 and the column 1 and an intermediate portion of the beam member 2 is attached to the column 1A as in this embodiment. You may make it support by 3A. That is, as shown in FIG. 2 (b), in the support member 3A, the upper plate portion 33 is projected from the upper portion of the vertical plate portion 31, the end portion of the upper plate portion 33 is bent downward, and further The front end is folded back in an arc shape to form a J-shaped longitudinal section, the beam material 2 is placed on the J-shaped portion, and the beam material 2 and the J-shaped portion are fixed with a fixing bolt B. You may connect and fix.

  3-4 is explanatory drawing which shows one Embodiment of the support | pillar cap 5 attached to the upper part of the support | pillar 1 in FIG. 1, FIG. 3 is a perspective view of the support | pillar cap 5, (a) of FIG. The front view of the support | pillar cap 5, (b) is a bottom view, (c) is a longitudinal cross-sectional view which shows CC cross section of (a). In addition, in (b), the location where the upper end 12 of the support | pillar 1 is arrange | positioned is shown collectively. The support cap 5 includes a head 6 that conceals the upper part of the support 1 and an insertion portion 7 that is inserted into the support 1 from the upper end. The head 6 is formed in a substantially disk shape, and a ring-shaped hem 61 is formed downward from the peripheral end of the head 6.

  As shown in FIG. 2C and FIG. 4B, a gap S1 is provided between the outer peripheral surface of the support column 1 (the upper end 12 of the support column 1) and the inner peripheral surface of the skirt 61. Yes. Thereby, for example, when attaching the support column 1 to the ground or the like, if the height of the support column 1 is adjusted by hitting the upper part of the support column 1 with a tool such as a hammer, the upper end of the support column 1 is crushed and the outer diameter increases. Even in this case, the column cap 5 can be attached to the column 1 without interference between the skirt 61 and the column 1.

Next, the relationship between the support member 3 and the head 6 of the column cap 5 will be described in detail. 6 is an enlarged plan view of the vicinity of the support column 1 in FIG. 1, (a) shows an embodiment before the support cap 5 is attached, and (b) shows an embodiment after the support cap 5 is attached. As shown in FIG. 3, a hem 61 of the head 6 is provided with a notch 62 from the lower end. Thus, it is possible to attach (a), the Simply slide the notch 62 to the contact portion 11 of the vertical plate portion 31 of the post 1 and the support member 3, the strut cap 5 to the post 1 . Accordingly, since the support member 3 can be directly fixed to the side surface of the support column 1, the skirt portion 61 of the support cap 5 is sandwiched between the support member 3 and the support column 1, and the hem portion 61 is broken or damaged. It is possible to attach the support cap 3 after attaching the support member 3 to the support 1, and conversely, attaching the support member 3 after attaching the support cap 5 to the support 1. Is also possible.

  As shown in FIGS. 4, 6, and 7, the upper surface of the head 6 of the support cap 5 is formed with a flat portion 63 at the center. Thereby, as shown in FIG. 8, the safety equipment S can be stably placed on the flat portion 63. And the strip | belt-shaped part 64 extended toward the support member 3 from this flat part 63 is formed, and reaches the skirt part 61, and the thick part 65 is formed toward the support member 3 from this skirt part 61, and the support | pillar 1 and the support member A gap S2 having a triangular shape in plan view generated between the gap 3 and the gap 3 is filled. By this thick portion 65, the back-and-forth of the support member 3 with respect to the support 1 can be suppressed. In addition, the head 6 of the column cap 5 can suppress upward protrusion of the beam member 2 attached to the column 1 via the support member 3, and can enhance the scenery as the entire protective fence.

  Furthermore, it is formed in a substantially U shape in plan view from the flat part 63 to the thick part 65, and the width dimension H1 from the flat part 63 to the thick part 65 is the width dimension H2 of the support member 3. Is consistent with Thereby, it becomes the external appearance which the support member 3 and the flat part 63 are connected by the same width in planar view, and can improve the designability. Further, as shown in FIG. 9, the flat portion 63 passes through the belt-like portion 64 and is hung on the support member 3 to be flat. Thereby, the comparatively big safety equipment S can be mounted so that the flat part 63, the strip | belt-shaped part 64, and the upper surface of the supporting member 3 may be straddled. Although it is preferable that the width dimension H1 and the width dimension H2 coincide with each other as a design, it is sufficient that at least a width dimension capable of stably placing the safety equipment S is secured. Moreover, the upper surface of the strip | belt-shaped part 64 should just be flat on a cross-sectional straight line in the width direction, and the inclination may arise in the longitudinal direction. Thereby, compared with the case where the upper surface of the strip-shaped portion 64 is formed in a spherical shape, when the lower surface of the safety equipment S is processed according to the inclination of the strip-shaped portion 64, the processing is relatively easy. When the safety device S is placed via a double-sided tape or the like, problems such as lifting or wrinkling of the double-sided tape or the like are less likely to occur in the attaching operation of the double-sided tape or the like. The safety device S is not particularly limited as long as the safety device S can be placed and fixed on the support member 3 and the column cap 5, and a self-luminous marker using a retroreflective marker or a solar cell is attached. May be. Further, as a means for bonding the safety device S to the support member 3, the flat portion 63, and the belt-shaped portion 64, a double-sided tape, an adhesive, or the like can be appropriately selected.

  Further, on the upper surface of the head 6 of the column cap 5, an inclined portion 66 that is inclined downward from the flat portion 63 toward the periphery of the head 6 is formed at portions other than the flat portion 63 and the belt-like portion 64. Thereby, in rainy weather, rainwater falls down along the inclined portion 66 and there is no risk of rainwater collecting, and since the flat portion is located at the upper end of the inclined portion, the safety equipment S placed on this is also visible. It can be made easier.

  Further, the back surface of the vertical plate portion 31 of the support member 3 is formed flat in the vertical direction, and the front surface of the thick portion 65 facing the flat portion is also formed flat. Thereby, the support member 3 can be rotated around the through bolt 4 penetrating the vertical plate portion 31, and the support member 3 can be rotated according to the inclination even if the installation place is an inclined place. The beam member 2 can be attached, and the support cap 5 can be attached even when the support member 3 is rotated.

  Next, the insertion portion 7 of the support cap 5 will be described. The insertion portion 7 includes a hanging piece 8 provided on the lower surface of the head 6 and formed in a cylindrical shape that is concentric with the skirt 61. In the present embodiment, as shown in FIGS. 4B and 4C, cylindrical ribs 71 that are concentric with the drooping piece 8 are formed inside the drooping piece 8 from the lower surface of the head 6 downward. A plurality of reinforcing ribs 72 are provided radially from the central cylindrical rib 71 toward the inner peripheral surface of the hanging piece 8. Thereby, the rigidity of the head 41 and the hanging piece 43 can be increased.

  As shown in FIGS. 3 to 4, the hanging piece 8 has a storage groove 81 formed upward from the lower end of the cylindrical portion. The storage groove 81 includes an insertion port 82 into which the through bolt 4 is inserted from the side, and a bolt storage unit 83 that is formed at the back of the insertion port 82 and stores the through bolt 4 in the horizontal direction.

  On both sides of the storage groove 81, vertical ribs 84 are provided from the outer peripheral surface of the hanging piece 8 toward the inner peripheral surface of the column 1. And when the drooping piece 8 is inserted into the inside of the column 1, the tips of the vertical ribs 84 come into contact with the inner peripheral surface of the column 1. Further, when the screw portion 41 of the through bolt 4 is inserted into the insertion port 82 from the side between the storage groove 81 and the vertical rib 84, the screw portion 41 of the through bolt 4 is stored in the bolt by being deformed by pressing. A deformation portion 85 that leads to the portion 83 is formed.

  Next, a method for attaching the column cap 5 to the column 1 will be described in detail. As shown in FIG. 5, first, the insertion portion 7 (hanging piece 8) of the column cap 5 is inserted into the inside from the upper end portion of the column 1, and the screw portion 41 of the through bolt 4 penetrating the column 1 laterally is suspended. It is inserted from the side into the insertion port 82 of the storage groove 81 of the piece 8. In the present embodiment, the insertion port 82 has a substantially isosceles triangular shape in which the width dimension of the opening end is larger than the width dimension of the screw part 41 of the through bolt 4 and the width dimension of the inner part is smaller than the width dimension of the screw part 41. It has been. Accordingly, the screw portion 41 abuts against the deformed portions 85 on both sides as it goes to the inner portion of the insertion port 82, and further presses and deforms the deformable portion 85 when it further moves to the inner portion, reaching the innermost bolt housing portion 83. Then, the deforming portion 85 is not pressed from the through bolt 4 and returns to the original state before the deformation. As a result, the screw portion 41 of the through bolt 4 is stored in the bolt storage portion 83, and the support cap 5 is locked to the through bolt 4. The size of the bolt storage portion 83 is preferably the same as or slightly larger than the outer shape of the screw portion 41, and preferably does not unnecessarily move in the vertical direction when the support cap 5 is locked to the through bolt 4.

  Next, the relationship between the deforming portion 85 and the vertical rib 84 in the hanging piece 8 will be described in detail. In the present embodiment, since the deforming portion 85 is formed in an arc shape in cross section, when the pressing is received from the screw portion 41 of the through bolt 4, the deforming portion 85 is deformed outward so as to widen the insertion port 82. . At this time, since the vertical rib 84 is in contact with the inner peripheral surface of the support column 1, it acts to suppress the deformation of the deforming portion 85. First, when the through bolt 4 is inserted into the insertion port 82, the insertion port 82 has a substantially triangular shape, and deformation due to pressing gradually occurs. Therefore, the deformation is distributed and received by the entire hanging piece 8. It is relatively easy, and the through bolt 4 can be guided to the bolt housing 83. On the other hand, when the through bolt 4 is pulled out from the bolt housing portion 83, it is necessary to first widen the narrowest part in the insertion port 82, so that a relatively large deformation is required. Is pressed toward the inner peripheral surface of the column 1 and is brought into contact with the inner peripheral surface, so that this deformation is suppressed and it cannot be easily pulled out. Accordingly, the through bolt 4 is stably housed in the bolt housing portion 83 by the deforming portion 85 and the vertical rib 84, and the support cap 5 does not easily come out of the support 1.

  The drooping piece 8 is formed in a cylindrical shape in this embodiment, and two storage grooves 81 are formed in the drooping piece 8 so as to face each other. Thereby, since the penetration bolt 4 is accommodated in the two accommodation grooves 81, the support cap 5 can be attached to the support 1 more firmly.

  Thus, the support cap 5 can be firmly attached to the support 1 by the synergistic effect of the storage groove 81 and the vertical rib 84 of the hanging piece 8, and a vehicle such as an automobile collides with the protective fence P according to the present invention. Even so, it is possible to reduce the possibility that the column cap 5 does not easily come off the column 1 and scatters around and causes a secondary disaster.

  Further, the penetrating direction of the penetrating bolt 4 coincides with the extending direction of the head flat portion 63 in the head 6 of the column cap 5. As a result, the orientation of the head 6 of the support cap 5 is regulated by the support member 3 when the support cap 3 is attached with the through bolt 4 passing through the support 1 and the support member 3 attached to the support 1. Therefore, if the storage groove 81 of the hanging piece 8 is set in advance so as to be engaged with the through bolt 4 when the support cap 5 is inserted in that direction, the head 6 of the support cap 5 need not be faced. Thus, the mounting work becomes easy.

  The attachment method of the support cap 5 is not limited to the above. For example, after the insertion portion 7 (the hanging piece 8) of the support cap 5 is inserted into the support 1, the through bolt 4 is passed through the support 1 in the lateral direction. At this time, the through bolt 4 may be attached so as to penetrate the bolt housing portion 83 of the housing groove 81.

  The column 1 is preferably made of metal in consideration of supporting the beam member 2, and generally, a long body made of a pipe or a shape member made of aluminum, stainless steel, steel, or the like is cut into an appropriate length. Those obtained by plating or painting can be preferably used.

  Considering the necessary strength as the protective fence P, the beam member 2 is preferably made of metal like the support column 1 and generally has a long body made of pipes or shapes such as aluminum, stainless steel and steel. What was cut | disconnected appropriately | suitably to length, what plated and painted them, etc. can be used suitably. In the present embodiment, the beam member 2 is mounted in three stages in the vertical direction, but can be appropriately set as necessary. Moreover, the thing of the vertical lattice shape which has arrange | positioned the vertical beam between the beam materials 2 may be sufficient, and the thing which arrange | positioned the mesh panel similarly may be sufficient.

  Considering that the beam member 2 is supported, it is preferable to use a metal member for the support member 3. In general, a metal plate such as aluminum, stainless steel, or steel is press-molded, or plated or painted. The thing etc. which can be used can be used suitably. Further, a cover material may be attached to the upper part of the support member 3 in order to conceal the head of the connecting bolt B attached to the support member 3. In the cover material, a reflective material arranged substantially vertically toward the longitudinal direction of the protective fence P may be attached. The cover material may be attached to each of the support members 3, or may be attached only to the lower support member 3 in consideration of the position of the headlight of the automobile.

  The support cap 5 is generally integrally formed by injection molding a synthetic resin. As the synthetic resin, polycarbonate, urethane resin, polyacetal, polyester, AAS resin, ABS resin, polyamide, etc. are used alone. These may be used in appropriate combination. Moreover, you may form combining several members.

  In the embodiment of the support cap 5, in this embodiment, the support member 3 is disposed at substantially the same height as the upper end of the support 1 in order to enhance the landscape, and the guard beam P is viewed from the front and above the lateral beam 2. It is arranged so that the support cap is not conspicuous. In this case, it is preferable that the skirt portion 61 of the head 6 of the column cap 5 is inserted between the column 1 and the support member 3. Further, as shown in FIG. 7, a part of the hanging piece 8 may be cut out.

  Since the safety fence according to the present invention can stably mount safety equipment such as a guide sign, for example, when safety matters occur temporarily and installation of safety equipment becomes necessary Even when a relatively large safety facility is installed in the same manner, it can be placed from the flat portion of the support cap to the support member, and can be suitably used in such a case.

It is a top view which shows the 1st form of implementation of the protection fence which concerns on this invention. FIG. 2 is an enlarged longitudinal sectional view of a main part of FIG. 1. It is a perspective view which shows the 1st form of implementation of the support | pillar cap which concerns on this invention. It is explanatory drawing of the support | pillar cap of FIG. It is explanatory drawing which shows one form of the attachment method of the support | pillar cap which concerns on this invention. It is explanatory drawing which shows one form of the attachment state of the support | pillar cap which concerns on this invention. It is a perspective view which shows the deformation | transformation of the support | pillar cap which concerns on this invention. It is an enlarged partial side view which shows the 2nd form of implementation of the protection fence which concerns on this invention. It is an expanded partial side view which shows the 3rd form of implementation of the protection fence which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Support | pillar 11 Contact part 2 Lateral beam 21 Connection part 3 Support member 31 Vertical board part 32 Support part 4 Through bolt 41 Screw part 5 Support | pillar cap 6 Head 61 Bottom part 62 Notch part 63 Flat surface 64 Band-like part 65 Thick part 66 Inclination part 7 Insertion part 8 Hanging piece 81 Storage groove 82 Insertion slot 83 Bolt storage part 84 Vertical rib 85 Deformation part A, C Nut B Bolt P Guard fence S Safety equipment

Claims (2)

The beam material is attached to the pillars erected at intervals through a support member, and the upper surface of the head of the pillar cap attached to the upper end of the pillar is formed with a flat flat portion at the center. A protective fence , wherein an inclined portion that is inclined downward from the flat portion toward the head periphery is formed, and a belt-like portion that extends from the flat portion toward the support member is formed . Protective fence as claimed in claim 1, characterized in that the width of the support member before the SL band-shaped portion is the same.

Images