JP6483062B2 - Guard fence and connecting bracket - Google Patents

Description

  The present invention relates to a protection fence used for road crossing prevention, road / park or other fall prevention, and other uses, and a coupling fitting used therefor.

  Set up on land boundaries or sections to announce ownership and prevent illegal entry of others, set up in parks, golf courses, field athletics, mountainous areas, etc. to prevent people from falling or roads Guard fences that are used to prevent people from crossing, etc. are known. In the old days, there were guard fences with sparsely timber or logs, but recently, a structure in which multiple pillars are placed on the ground at intervals and beams are connected by beams (crossbars). Are widely known. Conventional protective fences are (1) a beam fixed to the side that is the front of a support column erected on the ground, or (2) a beam with a thickness equal to or less than the thickness of the support column itself. There are things that do not make protruding parts. The protective fence in the form of (1) has the advantage that the strength of the entire protective fence can be increased by standing up a solid and large-sized support column. However, this type of protective fence has a large thickness in the front and rear thickness of the entire fence, and it has a heavy feeling, but it is inferior in light weight and clean design, and construction assembly is also heavy in the unit support and beam material Since some are used, assembly and connection work is not so easy. Furthermore, in order to create notches, etc. on the pillar side or beam side when connecting the pillars to the beam when installing the pillars in places where the standing position of the pillar is bent in a serpentine shape in plan view There was a problem that processing was required and construction work took time. In addition, in the case of using a beam having a thickness equivalent to the thickness of the support column itself in (2), the connection strength between the support column and the beam tends to be weak, and it is necessary to use various connection members in order to increase the strength. is there. Conventionally, what is shown to patent document 1 is proposed about a protective fence.

Utility Model Registration No. 3185870

  One example of this conventional protective fence is a side surface of a rectangular steel pipe 1 installed vertically (the member numbers used in the description of this paragraph number are applied only in the description in this paragraph number). The connecting bracket 7 is fixed to the end of the beam 2 by fixing the square steel pipe 1 from both sides with a decorative plate 4 provided with a relief hole 16 for projecting a part of the connecting bracket 7 to the outside. The bracket 6 is fixed, and the projecting portion of the coupling bracket 7 of the square steel pipe 1 and the coupling bracket 6 of the beam 2 are coupled to connect the column and the beam. In another example of this conventional protective fence, two square steel pipes 1a and 1b and a part of each of the connecting fittings 6a and 6a attached to the end face of the beam are overlapped to form square steel pipes 1a and 1b from both sides. It is sandwiched and fixed. Although one example of this conventional protective fence can be installed by changing the angle easily even at the place where the beam 2 is rotated around the bolt 8 and the column is arranged in a meandering manner, the decorative plate 4, the connecting bracket 7, special members such as connecting metal fittings 6 and metal fittings are required, and it is necessary to position and position the square steel pipe 1 and the beam 2 and to form and position the relief holes 16 on the decorative plate 4 with high accuracy. It is not easy, takes time to assemble, and has a large number of parts, which is disadvantageous for parts management. Another example of a conventional protective fence uses two square steel pipes and sandwiches and assembles part of the beam connecting brackets 6 on both sides, so that the construction work is not easy and time-consuming and the overall construction cost is high. There is a drawback.

  The present invention has been made in view of the above-described conventional problems, and one object of the present invention is to provide a protective fence that can be assembled and connected to a support column and a beam in a short time and at a low cost by a very simple operation and can have a smart appearance. And it is providing the coupling metal fitting used therefor.

In order to solve the above-mentioned problems, the present invention is a protective fence 10 in which a plurality of support pillars 1a, 1b, 1c are erected on the ground at intervals, and a beam 2 is laid horizontally between the support pillars. A support post 1 having a through hole 6 therethrough, a base fitting 4 inserted into the through hole 6 and fixed integrally with the support post 1 and having base connecting piece portions 7 at both ends of the through hole, and a base attachment 4 is a beam connecting bracket 5 screwed and connected to the base connecting piece portion 7, and a bolt portion 16 screwed and connected to the base connecting piece portion 7 so as to be rotatable about the same axis as the through hole 6 on one end side. And a beam connecting bracket 5 in which a plate-like blade body (18) with a pivotal support hole 20 for pivotal connection with the end of the beam 2 is fixed integrally with the bolt part 16 on the other end side, It comprises a beam 2 which connects the connection fitting 5, base metal 4, both sides of the through hole 6 of the support post 1 Are metal fittings that are inserted into each other and screwed to each other and tightened to each other, and are composed of metal fittings having a long nut portion 12 having a screw hole in the shaft center portion, and the first metal fitting 4a is on the insertion end side. To the long nut portion 12, and the bolt portion 14 of the first metal fitting 4 a is screwed into the long nut portion 12 of the second metal fitting 4 b so that they are mutually connected inside the column 2. And the insertion hole port 9 for screwing and coupling the bolt portion 16 of the beam connecting bracket 5 with the first and second brackets 4a and 4b inserted into the through holes 6 of the support column 1, An insertion hole port 9 opened toward the outside of the support column 1 is included, and the metal fitting pair of the base metal fitting 4 is inserted from both sides of the through hole 6 of the support column 1 and screwed to each other to be tightened. In this state, the beam connection fittings 5 are screwed and connected to each other from the outside, and 2 consists of a safety barrier 10 which connects the. The work required for connecting the column to the beam includes drilling a through hole at the beam mounting position of the column, mounting the base bracket to the column, connecting the beam connecting bracket to the base bracket, and beam connecting bracket. The connection between the metal fittings and the connection between the beam connection metal fitting and the beam are operations such as screwing and fitting, and a drilling operation, which can be completed in a short time and with a simple operation. The base metal fitting 4 and the beam connection metal fitting 5 can be connected to any position around the through-hole axis, and the base metal fitting and the beam end can be connected at any connection angle. The beam connection bracket is pivotally connected to the base bracket and the axis of the through hole, and the connection work between the column and the beam can be completed by a simple fastening operation between the beam connection bracket and the beam end. The base bracket 4 and the beam connection bracket are connected at an arbitrary position around the axis of the through-hole, and at the same time, the base bracket 4 and the beam 2 end are connected at an arbitrary connection angle, and the installation position of the column is meandered in plan view. Even if it is a form to perform, even if it is an inclined slope ground, the guard fence which can adapt to these topography can be comprised. Also, the installation work can be performed easily and in a short time. In addition, since it is possible to connect a pair of brackets made of two brackets within the support column while having the base coupling piece portions at both ends of the through-holes, the base is later attached to the outer end of the base bracket. The beam connection work to the support can be smoothly performed without forming the connecting piece. In addition, since the base metal fittings on both sides of the column are rotatably connected, the beam connecting metal and beam connecting work connected to each can be easily and smoothly performed.

In addition, the present invention is a beam connecting bracket connected to the base bracket of the protective fence according to claim 1, and has a bolt portion 16 screwed to the long nut portion 12 of the base bracket 4 on one end side, The beam connecting fitting 5 is integrally formed with a blade body with a pivotal support hole 20 that is sewn on the other end side and connected.

  According to the protective fence of the present invention, the protective fence is a protective fence in which a plurality of support pillars are installed on the ground at intervals and a beam is horizontally placed between the support pillars, and the support pillar having a through hole penetrating in the lateral direction; A base bracket that is inserted into the through hole and fixed integrally with the column and has a base connecting piece on each end of the through hole, and a beam connecting bracket that is connected to the base connecting piece of the base bracket. A pivot support hole for pivotally connecting to the end of the beam on the other end side, and having a pivot connection connected to the base connection piece so as to be rotatable about the same axis as the through hole on one end side Since the structure includes a beam connecting bracket integrally having a beam and a beam connected to the beam connecting bracket, a through hole is drilled in the beam mounting position of the column, a base bracket is mounted on the column, and a base Connecting the beam connection bracket to the bracket, and the beam connection bracket and beam That connection, it is possible to complete the installation of the safety barrier with an extremely simple operation, and in a short time. Therefore, the work cost can be greatly reduced. In addition, the base bracket and the beam connection bracket are connected at an arbitrary position around the axis of the through-hole, and at the same time, the base bracket and the beam end are connected at an arbitrary connection angle, and the installation position of the column is meandered in plan view. Even if it is a form, even if it is a sloping slope ground, the guard fence which can adapt to these topography can be constructed | assembled easily and in a short time.

  The base bracket is composed of a pair of brackets that are inserted from both sides of the through-holes of the column and are tightly coupled to each other, so that the base bracket is inserted and connected from the left and right at the middle intermediate position of the column. Therefore, the balance of the fastening force is good and the fastening strength can be made high.

  Moreover, the base bracket is inserted from both sides of the through-hole of the support column and has a male and female screw part that is screwed and connected at the insertion end side, so that the base bracket is inserted from the left and right at the internal intermediate position of the support column. Therefore, the fastening force is well balanced and the fastening strength can be increased.

  In addition, the base bracket is configured to include a long nut portion in which the insertion hole port is arranged toward the outside of the column in a state of being inserted into the through hole of the column, so that the beam connection bracket and the bracket can be coupled by screwing. The connection mode with the beam can be secured, the connection work is simple, and preparation for connection between the support column and the beam can be completed in a short time.

  In addition, the rotation connecting portion of the beam connecting bracket includes a bolt portion that is screwed to the long nut portion of the base bracket, so that the long nut portion of the base bracket and the bolt portion of the beam connecting bracket are screwed together. The connection mode with the beam can be ensured only by coupling, the connection work is simple, and the connection preparation between the support column and the beam can be completed in a short time.

  In addition, the beam connecting bracket is composed of a plate-like blade body with a pivotal support hole that is sewn and connected to the beam end portion, so that the plate surface direction of the blade body during meandering in plan view and construction on an inclined slope ground Forced rotation to the angle can be done easily, and fine adjustment of the angle when installing on changing terrain can be performed. It is also possible to construct an almost accurate guard fence structure that conforms to changes. In other words, no matter how the rotation position of the shaft of the coupling metal in the through hole is set, the other end of the beam is easily bent in the plate surface direction by forceful rotation. It is possible to connect the column and the beam in a well-connected state by adapting to the set position of the column even on an inclined ground having a difference in elevation in front view.

  The base metal fitting is a metal fitting including a long nut portion in which the insertion hole opening is arranged toward the outside of the support in a state of being inserted into the through hole of the support, and the first metal fitting constituting the metal pair is inserted. By having a bolt part protruding integrally from the long nut part on the end side, the bolt part of the first metal fitting is screwed into the long nut part of the second metal fitting and mutually connected inside the column The base metal fittings are inserted from the left and right at the internal intermediate position of the support and are screwed together to provide a good balance of fastening force and high fastening strength.

  In addition, the insertion hole port of the base metal fitting that is opened toward the outside of the support column in the state of being inserted into the through hole of the support column is provided with a countersink recess for rotation input, so that the disc-shaped head and It is possible to realize a configuration in which rotation input is performed from one end side of the nut hole using a deformed nut body in which the nut body is integrated. In addition, the production cost can be reduced by using a common nut member for the production of the pair of base brackets.

  In addition, it is a long nut part of the pair of base metal fittings, and has a head that expands perpendicularly to the entire circumferential direction of the through hole on the outside of the support when inserted into the through hole of the support, By adopting a configuration in which the outer peripheral surface of the long nut is connected in an arc shape, a deformed nut body in which the disc-shaped head and the nut body are integrated can be specifically realized.

  Further, the base bracket of the present invention is a base bracket including a long nut portion in which an insertion hole port is arranged toward the outside of the column in a state of being inserted into the through hole of the column, and a long nut on the insertion end side. By having a structure that has a bolt part that protrudes integrally from the part, the base connecting piece part that performs metal fitting connection with the beam connecting metal fitting to be connected to the metal fitting is arranged on the outer end side, and is sandwiched from both sides of the column In this manner, a pair of base metal fittings can be inserted and connected through the through holes, thereby simplifying the assembly work, shortening the work time, and maintaining the strength of the fence structure.

  The beam connecting bracket of the present invention has a bolt portion that is screwed to the long nut portion of the base bracket on one end side, and a blade body with a pivotal support hole that is sewn on and connected to the other end side. By doing so, it is possible to realize a connection configuration by sewing and connecting work using bolts or the like to the beam by connecting the base metal fitting.

It is principal part front explanatory drawing of 1st Embodiment of the protection fence of this invention. It is an AA arrow directional view of the support | pillar of FIG. It is the top view which abbreviate | omitted the base part of the protection fence of FIG. FIG. 2 is an enlarged exploded explanatory view of a support fence of FIG. 1 and a connecting bracket for beam connection. FIG. 5 is an enlarged perspective explanatory view of a support fitting and a connecting metal fitting for beam connection in FIG. 4. It is front explanatory drawing of the connection state of the support | pillar of FIG. 4, and the coupling metal fitting for beam connection. It is front explanatory drawing which shows the state which connected the beam to the support | pillar of FIG. 6, and the connection bracket for beam connection. It is a principal part enlarged plan view of the connection state of FIG. It is a principal part enlarged plan view of the state fastened with the fastener for sewing insertion from the connection state of FIG. It is explanatory drawing which shows the rotation direction etc. of the component at the time of the base metal fitting to a support | pillar and a beam, and the connection of a beam connection metal fitting. It is a perspective explanatory view of the end of the beam of an embodiment.

  Embodiments of the protective fence of the present invention will be described below with reference to the accompanying drawings. The protective fence of the present invention includes a fence structure used as a barrier for preventing falls of people from various facilities and a barrier for preventing entry / exit from facilities and areas. FIG. 1 to FIG. 9 show an embodiment of the guard fence of the present invention. FIG. 1 shows a guard fence facility provided with the guard fence of the present invention. In the protective fence of FIG. 1, for convenience of explanation, a structure having three columns connected to a beam is shown. However, a larger number may be provided connected to a beam, or two columns may be provided. It may be a facility that is simply beam-connected.

  In FIG. 1, three struts 1 (1a, 1b, 1c) are erected on the ground at required intervals, and four beams 2 are struts at both ends between the struts 1a, 1b and between the struts 1b, 1c. It is connected and horizontally mounted. In the embodiment, the distance between the columns is set to a separation distance of 3 meters, for example.

  In this embodiment, both the pillar 1 and the beam 2 as a horizontal member are made of wood, and by using thinned wood, forestry promotion can be promoted through afforestation and demand for wood. The support column 1 and the beam 2 are formed to have a predetermined diameter and length dimension, and are further subjected to surface treatment, antiseptic treatment, and the like as necessary. In addition, a support | pillar and a beam are not necessarily limited to wood, You may use a concrete material about a support | pillar.

  In the embodiment of FIG. 1, pillars 1 a, 1 b, 1 c are erected on the ground via a concrete foundation block 3 at a required planned installation location. In FIG. 1, the protective fence according to the embodiment includes a main configuration at a connection portion between the support column 1 and the beam 2.

  FIG. 4 shows the main components of the guard fence 10 of the embodiment. In the figure, the guard fence 10 is composed of a support column 1, base brackets 4 (4 a, 4 b), beam connection brackets 5, and the like. , Beam 2. The base bracket 4 is inserted into a through-hole 6 penetrating the column 1 in the lateral direction and fixed so as to be integrated with the column, and the beam connection bracket 5 is connected to the base bracket 4 integrated with the column. It is a base metal fitting that is the basis for this.

  The base metal fitting 4 is inserted into the through hole 6 and fixed integrally with the support 1, and has base connecting piece portions 7 at both ends of the through hole 6. As shown in FIGS. 4, 6, and 7, in this embodiment, the base metal fitting 4 is inserted from both sides of the through-hole 6 of the support column 1, and the first and second base metal fittings 4 a and It consists of a metal fitting pair including 4b. The base metal fittings 4a and 4b according to the embodiment have either male or female screw portions 8 at the portions to be inserted into the through holes 6, and the base metal fittings 4a and 4b are inserted from the hole openings on both sides to support the pillars. Screwed inside. The base metal fitting 4 may be inserted from a hole on one side of the through hole 6.

  In the base metal fitting 4, the base connecting piece portions 7 provided on both ends of the through hole 6 are parts for connecting the base metal fitting 4 and the beam connecting metal 5 to each other. In the embodiment, the base metal fitting 4 is provided with a long nut portion 12 in which an insertion hole port 9 is arranged toward the outside of the support column in a state of being inserted into the through hole 6 of the support column 1. That is, in the present embodiment, the base connecting piece 7 includes the insertion hole port 9, and the beam connecting bracket 5 is connected to the base bracket 4 through the insertion hole port 9. In particular, in the present embodiment, the female screw portion 12a of the long nut portion 12 is provided continuously to the insertion hole port 9, whereby the base metal fitting 4 and the beam connection metal fitting 5 are connected by metal fitting. The

  4 and 5, the first base metal fitting 4a of the base metal fitting 4 has a bolt portion 14 that integrally protrudes from the long nut portion 12 on the insertion end side, and the bolt portion 14 is the second base base. Screwed into the long nut portion 12 of the metal fitting 4b and screwed to each other inside the column 1. The base metal fitting 4a is, for example, a bolt shaft composed only of a shaft body having no head on the insertion end side of the long nut portion, and a part thereof is screwed, and in this state, a punch is formed from the outside of the long nut portion 12. They can be integrated by caulking or the like. The connection between the first base metal fitting 4a and the bolt part 14 is not limited to this method, and welding, adhesive fixing, and other fixing methods can be used.

  4 and 5, the first base metal fitting 4a of the base metal fitting 4 has a bolt portion 14 integrally protruding from the long nut portion 12 on the insertion end side (inner side), and the other end side of the insertion end. The base connecting piece 7 is provided on the outer side. In addition, the second base metal fitting 4b of the base metal fitting 4 has an end portion of the long nut portion 12 screwed into the bolt portion 14 of the first base metal fitting on the insertion end side, and other than the insertion end. The base connecting piece 7 is provided on the outer side which is the end side.

  The beam connection bracket 5 is a connection bracket that is connected to the base connection piece 7 of the base bracket 4 and connected to the base bracket 4. The beam connection bracket 5 has a rotation connection portion 52 on one end side and the other end side. Are provided with a pivot hole 18 as a unit. The rotation connecting portion 52 is connected to the base connecting piece portion 7 so as to be rotatable about the same axis as the through hole 6. The pivot hole 18 is a holed bracket having a pivot hole 20 for pivotally coupling the other end of the beam connecting bracket and one end of the beam 2, and is provided integrally with the pivot coupling 52. It has been.

  In the present embodiment, the rotation connecting portion 52 of the beam connecting bracket 5 is a bolt that is inserted from the outside of the long nut portion 12 of the base bracket 4 and is screwed into the long nut portion 12 on one end side of the beam connecting bracket. Part 16 is included. Further, in the present embodiment, the pivot hole 18 includes a pivot hole 20 on the other end side of the beam connecting fitting and is sewn and connected together with the end of the beam 2. The base bracket and the beam are coupled so that the connection angle can be changed around the horizontal axis in the intersecting direction. The bolt part 16 and the pivot hole 18 of the rotation connecting part 52 are integrated, and rotate in the same direction around the coupling part when the bolt part 16 is screwed and rotated.

  In the embodiment, the pivot hole 18 is formed of a metal fitting with a hole having a hole 20 that is sewn and connected together with the end of the beam 2. In the embodiment, the pivot hole 18 is formed of a metal plate blade. The pivot hole 18 is not limited to the configuration of the plate-shaped blade body, and may be formed in any other three-dimensional shape. In the embodiment, as shown in FIGS. 4 and 5, the pivot hole 18 is configured such that the head portion of the bolt portion 16 made of a hexagonal bolt body is the plate surface of the blade body at the central portion on the short side of the long rectangular plate blade body. And connected in the same longitudinal direction. That is, the pivot hole 18 is formed by integrally connecting, for example, a normal bolt having a head and a screw portion and a metal plate with a hole. The hole 20 is formed as a horizontally long hole through which a bolt shaft having a shaft diameter of, for example, about 18 mm can be inserted. Therefore, the connection angle adjustment between the beam connecting bracket and the beam end before fastening can be easily performed with the fastener 26 serving as a pivot shaft as an axis, while maintaining the movable range of the shaft.

  The bolt portion 16 and the metal fitting with the hole of the pivotal support hole portion 18 are coupled so as to be bent by a forced external force at the connection portion. In this sense, it can be said that the metal fitting (18) with a hole is a flexible connecting portion of the beam connecting metal 5. As a result, the beam connection fitting 5 can be rotated in the direction xr coaxial with the shaft 600 of the through hole 6 (see FIG. 10), and at an arbitrary connection angle br (see FIG. 7) at the pivot hole 18. To connect the end of the beam 2 so that the angle can be freely changed. Furthermore, the pivotal support hole 18 of the plate-like blade can be forcibly bent at a certain bending angle toward the plate surface direction.

  The plate-like blade body as the pivot hole 18 of the beam connection fitting 5 is inserted into a slit 22 formed at the end of the beam 2 as shown in FIGS. In the state where the through-hole 24 drilled in the beam in a direction penetrating the slit 22 and the pivotal support hole 20 of the plate-like blade body are aligned, a beam connecting bracket is connected via a fastener 26 as a pivotal shaft. 5 and beam 2 are connected. In the embodiment, the fastener 26 is fastened by coupling a deformed long nut having a head, a nut main body, and an arc connecting portion and a bolt, like the long nut of FIGS. Note that the device for inserting and fastening the through hole 24 and the pivotal support hole 20 is not limited to the configuration of the embodiment, and can be fastened using ordinary bolts and nut members. Moreover, you may fasten using a lag screw. In the case of using a lag screw, the beam through-hole 24 is preferably not a through-hole, but a pilot hole up to about one depth of two diameters of the beam diameter.

  The other end side of the beam 2 is connected to the support column 1 so that it can be bent in the entire circumferential direction of the axis of the through hole 6 in cooperation with the coaxial rotation structure with the through hole 6 of the beam connection fitting 5. By configuring the pivot support hole 18 of the beam connection fitting 5 from a metal plate-like blade body, it becomes easy to bend in the direction of the plate surface, whereby the axis of the base fitting 4 and the beam connection fitting 5 in the through-hole 6 is obtained. The base bracket and the beam are connected at an arbitrary position in the rotation direction, and the base bracket and the beam are connected and connected at an arbitrary bending angle by the pivot connection structure of the beam connection bracket and the beam end portion by the pivot support hole 18. To do. Further, the other end of the beam 2 is easily bent in the direction of the plate surface by forcibly turning, so that the column and the beam can be adapted to the set position of the column even in an inclined place having a meandering shape in plan view or an elevation difference in front view. Can be connected in a good connected state, and fine adjustment of the connection angle can be easily performed.

  In addition, as shown in FIG. 5, the insertion hole port 9 of the base metal fitting 4 opened toward the outside of the support column in a state of being inserted into the through hole 6 of the support column 1 is provided with a rotation input recess 27. The base metal fitting 4 can be inserted into the through hole 6 of the column 1 and fastened inside the column with a simple operation.

  As shown in FIGS. 4 and 5, the long nut portion 12 of the metal pair of the base metal fitting 4 is connected to the nut main body 28 and one end side of the nut main body and inserted into the through hole 6 of the column 1. A disk-shaped head portion 30 is provided on the outside of the support column 1 so as to expand perpendicularly to the entire circumferential direction of the through-hole 6. And the head 30 and the outer peripheral surface of the nut main body 28 are comprised by the irregular-shaped long nut which connected in circular arc shape continuously. Thus, when the first and second base metal fittings are inserted from the through holes 6 from both sides with the support post 1 interposed therebetween and fastened inside the support post, the base support fixture 4 can be firmly integrated with the support post 1. It is possible to stabilize the support of the beam and maintain the strength of the entire fence structure. As shown in FIG. 5, the head 30 is provided with a bolt hole 34 for preventing rotation, and a bolt is inserted to prevent rotation with the inside of the head facing the column.

  In FIGS. 8 and 9, 32 is a back crack for suppressing cracks provided over the entire length of the wooden support.

Next, the construction process of the protective fence equipment having the protective fence of the present invention will be described. As a premise, the foundation is made by burying the foundation block in the ground of the place where the support is installed. In addition, drilling, back cracking, beam slitting, drilling, back cracking, and the like of wooden columns are performed in advance at the factory.
(1) The number of through holes 6 corresponding to the number of beams 2 attached to the pillars 1 before being built with a predetermined interval in the longitudinal direction (four in one embodiment) is drilled with a drill or the like.
(2) Next, slits 22 for connecting to the beam connecting metal 5 are provided at both ends of the beam 2 with a circular saw or the like. A back crack (not shown) for preventing cracks is also provided in the vicinity of the slit of the beam.
(3) A through hole 24 is drilled in the beam in a direction penetrating the slit 22 of the beam.
(4) The first and second base metal fittings 4a and 4b are inserted from both sides of the support column, rotated to the rotation input recess 27 with a hexagon wrench or the like, and the female screw portion 12a of the long nut and the bolt portion 14 are formed inside the support column. And fasten together.
(5) The bolt portion 16 of the beam connecting bracket is screwed into the base bracket 4 from the insertion hole port 9 of the base connecting piece 7 of the long nut portion 12 of the first and second base brackets 4a and 4b. The connection fitting 5 is connected.
(6) The fastener 26 is inserted through the through hole 24 and the stitching connection hole 20, and the end of the beam 2 and the beam connecting bracket 5 are connected and fixed. In addition, as for the mounting bracket to the support column located at the outermost end, only the base bracket is fastened from the left and right so that the beam connecting bracket 5 is not connected to the side surface where the beam is not provided.

  In the above embodiment, the pillars and beams are made of wood, but the pillars may be concrete pillars. In this case, by placing a mold material for the through-hole 6 in advance and molding a concrete support with a through-hole, the subsequent work steps are the same as in the above embodiment, the base bracket 4, the beam connection bracket 5, The beam 2 is connected and connected.

  The protective fence and the connecting bracket of the present invention described above are not limited to the configuration of the above-described embodiment alone, and can be arbitrarily modified without departing from the essence of the present invention described in the claims. You may go.

  The guard fence and connecting metal fitting of the present invention can be suitably used for various guard fence equipment, boundary installation such as entry prohibition, and the like.

DESCRIPTION OF SYMBOLS 1 Support | pillar 2 Beam 4 Base metal fitting 5 Beam connection metal fitting 6 Through-hole 7 Base connection piece part 9 Insertion hole port 10 Guard fence 12 Long nut part 14 Insertion end bolt part of base metal fitting 16 Bolt part of beam connection metal fitting 18 pivot Support hole (metal fitting with hole)
20 Pivot hole 24 Through hole 28 Long nut head 52 Rotating connection

Claims (2)

It is a protective fence that stands on the ground with a plurality of pillars spaced and connected by placing beams between the pillars.
A strut having a through hole penetrating in the lateral direction;
A base bracket that is inserted into the through hole and fixed integrally with the column and has base connecting piece portions on both ends of the through hole, and
A beam connection bracket connected to the base connection piece of the base metal fitting, and has a bolt part screwed and connected to the base connection piece so as to be rotatable about the same axis as the through hole at one end side. A beam connecting bracket in which a plate-like blade body with a pivot hole for pivot coupling to the end of the beam is fixed to the bolt side integrally with the bolt portion ;
A beam connecting with the beam connecting bracket ,
The base bracket is a pair of brackets that are inserted from both sides of the through-hole of the column and screwed to each other and tightened together, and consists of a pair of brackets having a long nut portion with a screw hole in the shaft center portion ,
The first metal fitting has a bolt portion integrally projecting from the long nut portion on the insertion end side, and the bolt portion of the first metal fitting is screwed into the long nut portion of the second metal fitting so that the inside of the support column. Interconnected,
Furthermore, an insertion hole opening for screwing and connecting the bolt portion of the beam connecting bracket in a state where the first and second metal fittings are inserted into the through holes of the support pillar, and opening toward the outside of the support pillar. Including
The base metal bracket pairs are inserted from both sides of the through-holes of the column, screwed together, and fastened to each other. A protective fence characterized by connecting the two . A beam connecting bracket connected to the base bracket of the protective fence according to claim 1, wherein the beam connecting bracket has a bolt portion that is screwed to the long nut portion of the base bracket on one end side, and is sewn and connected to the other end side. A beam connecting bracket that integrally has a blade body with a pivot hole.

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