JP6587084B1 - Foundation block for protective fence - Google Patents

Abstract

The present invention provides a foundation block for a protective fence that improves the connection performance between the foundation blocks of a guard fence such as a guard rail and does not deform or change by resisting a collision force that acts on the guard fence and propagates. SOLUTION: A basic block 1 comprising a filling block 20 in which a bolt insertion hole is provided vertically in a central portion and a bolt 30, and the other block on a convex portion 7 on the other side of one block body 2. The lower end of the U-shaped flange 6 on one side is placed on the upper end surface of the semicircular convex portion while the one-side notched concave portion 5 in the main body 2 is in contact with the insert nut on the upper end surface inside the top portion. In a state where the other side and one side of the notched concave part 5 are opposed to each other, the lower surface thereof is placed on the upper end of the U-shaped flange 6 and the outer peripheral surface thereof is provided with the notched concave part. 5 in a state where the filling block 20 is fitted in the state close to 5, and the bolt 30 in a state where it is inserted into the bolt insertion hole of the filling block 20 is screwed and fastened to the insert nut on the upper end surface, and the block for each connection interval L The main bodies 2 are connected to each other. [Selection] Figure 1

Description

  The present invention relates to a protective fence, and more particularly, to a concrete and connected foundation block in which a pillar is built and used when a guard pipe, a guard rail, a guard cable, and the like are installed along a road edge. .

  Conventionally, this type of connection type basic block is conventionally connected to each other at both ends in the length direction of the block along the road edge. For example, as described in Patent Document 1 below, a U-shaped There are a connecting structure using hooks, bolts and insert nuts, and a block for it.

Japanese Patent No. 4949530

However, in the invention described in Patent Document 1, a semi-cylindrical convex portion is provided at one end in the longitudinal direction of the elongated rod-shaped body having a substantially rectangular cross section, and a semi-cylindrical concave portion is provided in the vertical direction at the other end. A block formed by a trapezoidal cut, and U-shaped hooks protruding from a semi-cylindrical recess at a position facing the notch, with one end and the other end facing each other, and a semi-cylindrical protrusion The U-shaped hook tip from the semi-cylindrical recess is locked and connected with the bolt from above in the notch of the part.
Here, the connection form is such that the radii of the semi-cylindrical convex portion and the semi-cylindrical concave portion formed with the bolt position as the axis are different (convex radius <concave radius), and U is locked with a bolt. The character-shaped hook is in a floating state without coming into contact with the trapezoidal cut in a side view.
That is, the connection structure and the block for the connection are connected to each other by holding a gap between the blocks without directly fitting or joining the blocks and providing play around the connection hook. The block can be given degrees of freedom around the vertical axis, horizontal axis and torsional direction, and it allows the displacement of the connected block against the impact transmitted from the guardrail. There was a problem that it was inferior to the immobility and invariance required for the foundation structure.
The present invention has been made in view of such conventional problems, and is a foundation for a protective fence that improves the connection performance between blocks, resists a collision force that propagates by acting on the protective fence, and does not deform or change. The challenge is to provide blocks.

In order to solve the above-mentioned problems, the foundation block for a protective fence according to the present invention is provided with a support hole on the upper surface as appropriate and connecting both ends in the length direction so as to be along the road edge. A base block for a protective fence that is continuously installed on the horizontal axis facing the length direction at the center of the width of the rectangular rod-shaped body, and from both end faces of the rectangular rod-shaped body in the length direction between each of the vertical axis in the height direction that put on both end faces extend in respective same length as the coupling interval block, both end faces arcuate surface around the respective vertical axis is directed in the height direction segmental Jo recess and made, the end surface of one side of the rectangular rod-shaped body, the arcuate recess is provided I pass the entire region in the height direction, the top portion side curved in plan view from one side of the rectangular rod-shaped body to the longitudinal axis projecting proximity allowed U-rod, also, the other side of the end surface of the rectangular rod-shaped bodies, segmental Jo凹on side in the height direction It passed to form a width direction downwardly Rutotomoni convex portion protruding from one side of the rectangular rod-like body in the horizontal axis direction is provided, the protruding end of the protruding portion is centered on the longitudinal axis in a flat plane view, connecting A semicircular convex portion having substantially the same circular arc surface as the non-circular concave portion on one end face of the other rectangular rod-shaped body , and the height of the upper end surface of the convex portion substantially coincides with the lower end of the U-shaped flange, Further, the block main body in which an insert nut is embedded in the vertical axis position of the upper end surface, and the outer peripheral surface substantially coincide with the circular arc surface of the notched circular concave portion and the semicircular convex portion, and from the upper surface of the rectangular rod-shaped body. A cylindrical body having a height up to the upper end of the U-shaped rod, consisting of a filling block in which a bolt insertion hole is provided vertically in the center of the arc, and a bolt, and block main bodies at each connection interval are A semicircular convex part on the other side of the block body has a notched concave part on one side of the other block body. The bottom end of the U-shaped hook on one side is placed on the top end surface of the semicircular convex portion, and is joined with the insert nut on the top end surface facing the inside of the top portion, A state where the filling block is placed on the upper end of the U- shaped bowl in a space where the cutout concave portion on one side is opposed, and the outer peripheral surface of the filling block is close to the cutout concave portion in the Chutsume block is fitted, the bolt in the state inserted into the bolt insertion hole of the Chutsume blocks, are connected in a state of being screwed fastened to insert nut of the upper end surface on the other side of one of the block body It will be.

In the basic block configured as described above, the end surface joining between the block bodies prior to the main connection is a stable arcuate surface contact between the semicircular convex portion and the semicircular convex portion. Assuming that the block body can be appropriately adjusted around the vertical axis in accordance with the installation form, the fitting of the filling block into the space after joining both end surfaces is the side surface of the space. with the outer peripheral surface of the arcuate surface and Chutsume blocks of both the arcuate recess is substantially matched, the U-shaped lever which is interposed between the lower surface of the upper end surface and Chutsume block of the convex portion of the block body, the upper end surface and Since the main connection is performed by pinching the bolts at the lower surface and fastening the bolts, the connection is in a safe and strong friction joining state by the bolt fastening force.

Further, the base block for fences of the present invention, as claimed in claim 2, wherein, Chutsume block of claim 1 have a protrusion on the lower surface,該Tokki in side view against the horizontal axis of the block body In addition, a downwardly recessed portion for fitting the U-shaped ridge is provided, and the U-shaped ridge is accommodated in the recessed portion when a plurality of block bodies are connected .
In the basic block having the above-described configuration, both side ends of the U-shaped hook fitted to the recessed portion with respect to the width direction of the block main body are also joined portions, and rotation of the filling block is prevented.

Further, according to the third aspect of the present invention, the basic block for the protective fence is continuously provided at one or both sides of the side surface of the rectangular rod-like body according to claim 1 or 2 and at the lower end thereof, and is disposed outside in the width direction. A bottom plate that protrudes in the length direction is provided.
In the basic block configured as described above, the upper surface of the bottom plate can be disposed under the roadbed material.

The basic blocks for guard fence of the present invention, the block body both the arcuate recess by bonding to each other at cavity forming the opposing state, the outer peripheral surface of Chutsume blocks coercive bolted and block body both the arcuate-shaped recess and the lower surface and the upper end of the U-shaped rod projecting from the block body of Chutsume block, also, since the upper end face of the convex portion of the lower end and the block body of the U-shaped lever becomes a firm friction joint state closely respectively In addition, in its use, it becomes a sturdy foundation structure that is not deformed or fluctuated even by an impact force that propagates from the protective fence.
Moreover, in the basic block for a protective fence of the present invention, when connecting a plurality of block main bodies, both side ends of the U-shaped ridges with respect to the width direction of the block main bodies are fitted into the recessed portions on the bottom surface of the filling block to increase the joint portion. For this reason, it becomes a more rigid friction joining state together with prevention of rotation of the filling block.
Furthermore, in the basic block for the protective fence of the present invention, since the bottom plate is provided on one side or both sides of the side surface of the rectangular rod-shaped body, in use, the bottom plate is embedded under the roadbed material. The upper load by the passing vehicle can be obtained as a stable load.

  The partial perspective view which shows the use (connection) state of the foundation block for guard fences concerning embodiment of this invention.   The block main body of the same embodiment is shown, (A) is a front view, (B) is a plan view, (C) is a left side view, (D) is a right side view, and (E) is an AA of (A). Sectional drawing.   The inside block of the same embodiment is shown, (A) is a front view, (B) is a plan view.   The partial perspective view which shows the connection state of the embodiment.   4A is an enlarged view of a portion A in FIG. 4, FIG. 4B is an enlarged cross-sectional view of FIG. 4B, and FIG. 4C is an enlarged cross-sectional view of FIG.   The filling block which concerns on other embodiment of this invention is shown, (A) is a front view, (B) is a top view, (C) is a bottom view, (D) is DD sectional drawing of (A).   The inside block of embodiment same as the others is shown, (a) is a partial perspective view showing a use state, (b) is an EE enlarged sectional view of (a).   The block main body which concerns on other embodiment of this invention is shown, (A) is a front side perspective view, (B) is a back side perspective view, (C) is a front side perspective view which shows another block main body.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 thru | or FIG. 5 shows embodiment based on the foundation block of this invention, and the foundation block 1 which makes a main body from concrete makes the foundation structure of the continuous guard fence 50 along the road edge, and shows it. Both ends in the length direction are connected, and the upper surface 3a thereof is aligned with the road surface G and embedded in the roadbed.
As shown in FIG. 2, the block body 2 constituting the basic block 1 is on the horizontal axis X facing the length direction at the center of the width W of an elongated rectangular bar 3 having a rectangular cross section. respectively of the vertical axis Y in the height direction H that put the two end faces 4, 4 of the rectangular rod-shaped body 3 on both end faces 4, 4 extends with each same length, between Y and coupling interval L of the block in .
A column hole 10 for installing the column 51 of the protective fence 50 is provided in the approximate center of the upper surface 3a of the rectangular rod-shaped body 3, and both the end surfaces 4, 4 are centered on the longitudinal axis Y and have the same arc surface. and the arcuate recess 5, 5 toward the direction H, on one side of the end face 4 of the rectangular rod-shaped body 3 is provided I pass the entire region in the height direction H is the arcuate recess 5, the segmental recess 5 A U-shaped ridge 6 projecting from the one side of the rectangular rod-shaped body 3 in a plan view from the side of the top 6a is disposed at an appropriate height position.
Further, the other end face 4 of the rectangular rod-shaped body 3, the height direction H of the upper side in the arcuate recess 5 formed and passes Rutotomoni in the width W direction under side, the horizontal axis from one side of the rectangular rod-shaped body 3 protrusion 7 is provided which protrudes in the X direction, a protruding end of the protruding portion 7, as well as around the longitudinal axis Y in a plan view, one side of another rectangular rod-shaped body 3 which connects the end faces 4 Ketsuenjo It is formed in a semicircular convex portion 7a having substantially the same circular arc surface as the concave portion 5, the height of the upper end surface 7b of the convex portion 7 is substantially matched with the lower end of the U-shaped flange 6, and the upper end surface 7b An insert nut 8 is embedded in the vertical axis Y position.

Similarly, Chutsume block 20 which constitutes the base block 1, as shown in FIG. 3, the outer peripheral surface 23 is substantially coincides with the circular arc surface of said the missing circular recess 5 of the block body 2 semicircular protrusions 7a At the same time , it is a cylindrical body whose height extends from the upper surface 3a of the rectangular rod-shaped body 3 to the upper end of the U-shaped ridge 6, and is formed by vertically installing bolt insertion holes 21 from the center of the arc on the upper surface.

1, 4, and 5 show the connection and use state of the base block 1, and the block main bodies 2 for each connection interval L are semicircular convex portions of the convex portion 7 on the other side of the one block main body 2. 7a is in contact with the notched concave portion 5 on one side of the other block main body 2 and the upper surfaces 3a thereof are flush with each other, the upper end surface 7b of the semicircular convex portion 7a is joined. The lower end of the U-shaped flange 6 projecting from the one-side notched circular recess 5 is placed, and the insert nut 8 of the upper end surface 7b faces the top inner side 6a.
Next, the lower surface 22 of the filling block 20 is placed on the upper end of the U- shaped ridge 6 in the space 40 formed in a state where the other-side and one-sided cutout concave portions 5 and 5 are opposed to each other by the joining. and, fitting the said Chutsume block 20 in a state where the outer peripheral surface 23 of the Dochu packed block 20 is brought close to the segmental recess 5,5.
Subsequently, the bolt insertion holes 21 of the middle packed block 20, the bolt 30 in the state inserted from the upper side of the bolt insertion holes 21, connecting while screwed fastened to insert nut 8 of the upper end face 7b of the projections 7 Thus, the basic blocks 1 are connected to each other.
Thus, the column 51 of the protective fence 50 is built and fixed in the column hole 10 of each foundation block 1.

According to the basic block 1, straight or curved, bent shape such as to set up the form of the roadside, prior to the present coupling for fastening the block body 2 with each other by Chutsume block 20 and the bolt 30, a rectangular rod-shaped body 3. The stable circular arc surface abutment between the semicircular convex portion 5 and the semicircular convex portion 7a at both ends of the plate 3 is used, and the block body 2 can be freely adjusted around the vertical axis to perform joining corresponding to the installation form.
In addition, Chutsume block 20 fitted to the voids 40 after the bonding in a state where the outer circumferential surface 23 is substantially matched with the circular arc surfaces of both the arcuate recess 5, 5 forming the side surface of the cavity 40, and , U shaped lever 6 interposed between the lower surface 22 of the upper end face 7b and Chutsume block 20 of the convex portion 7 of the block body 2, together are sandwiched by the upper end surface 7b and the lower surface 22, a bolt at the longitudinal axis X The connection between the two ends of the block main body 2 is completed by entering a strong pressure state by fastening the nut 30 and the insert nut 8.
That is, by the above-described connection, the outer peripheral surface 23 of the filling block 20 and the both notched circular recesses 5, 5 which are strongly fixed with the bolt 30 in the space 40, and the lower surface 22 of the filling block 20 and the U-shaped flange 6 The upper end, and further, the lower end of the U-shaped flange 6 and the upper end surface 7b of the convex portion 7 are brought into close and strong frictional joining, and the vehicle collides with the protective fence 50 in the horizontal direction in use as shown in FIG. At this time, even if the impact force transmitted from the column 51 acts on the block body 2, the solid foundation block 1 is integrated with the resistance force due to the frictional joining and does not deform or change at the connecting portion. Can be

6A to 6D show other embodiments of the filling block 20, and the filling block 20 has engaging means on the lower surface 22.
Specifically, the lower surface 22 of the cylindrical body has a protrusion 24, and the protrusion 24 includes a downward recessed portion 25 for fitting the U-shaped flange 6 in a side view with respect to the horizontal axis X direction of the block body 2 . More specifically, the projections 24 each Oite to the shoulders of the lower surface 22 exhibits Ketsuenjo in bottom view of the cylindrical body, the recess 25 is I passed between the outer peripheral surface 23 in the central portion of the lower surface 22 . Further, the concave cross-sectional dimension of the concave portion 25 is such that the depth substantially coincides with the diameter of the U-shaped flange 6 protruding from the notch-shaped concave portion 5 on one side of the block main body 2 and both side ends in the width W direction of the block main body 2. The width substantially coincides with that between 6b.
Further, a dent 26 in which a bolt head 30 a and a square washer 31 are to be contained is provided at the upper end of the bolt insertion hole 21.

In fitting the filling block 20 into the joint portion (vacant space 40) between the block main bodies 2, the lower surface 22 of the filling block 20 is attached to the U-shaped flange 6 in the fitting (in the void 40 in the embodiment). In addition to placing the outer peripheral surface 23 of the filling block 20 close to the notch-shaped recesses 5 and 5), as shown in FIGS. The washer 31 not only increases the fixing performance of the bolt 30 and the fastening pressure, but also the U-shaped hook 6 is housed in the recessed portion 25 of the lower surface 22 of the filling block 20 and the upper end of the U-shaped hook 6 and the block body 2 with both side ends 6b is closely fitted to the recessed portion 25 in the width W direction, the upper end face 7b and the contact with the joint portion of the projecting portion 7 of the lower surface 22 also blocks the main body 2 below facing projection 24 with a recess 25 In order to increase the number of filling block 20 times It becomes more firm friction bonding state in conjunction with the prevention.

FIG. 8 shows a modification of the block main body in each of the above embodiments. The block main body 2 in FIGS. 8 (A) and (B) has a width W at its lower end portion on the side surface 3b on one side of the rectangular rod-shaped body 3. FIG. A bottom plate 9 protruding in the direction and extending in the length direction is provided, and a pillar portion 10 of the upper surface 3a is left and a meat stealing portion 3c is provided on the other side surface 3b.
In the basic block 1 using this block main body 2, the roadbed material which comprises the road surface G can be arrange | positioned on the upper surface of the baseplate 9, and in the use, the baseplate 9 is embed | buried under the roadbed material, and the meat stealing part 3c By filling the roadbed material inside, the load on the road surface G due to the vehicle and the roadbed material can be made to act as a stable load of the foundation block 1, and coupled with the frictional joint accompanying the connection, the connection strength is increased. There is an effect to strengthen.
In addition, as shown in the other modified example of FIG. 6C, the bottom plate 9 has a lower end portion of the side surface 3b on one side extended further downward than the lower end of the rectangular rod-like body 3 in order to deepen the protruding position. In this way, a stable load by the roadbed material can be increased.

In addition, although the guard fence 50 in use of the said foundation block 1 illustrated the guard pipe, it is not limited to this, For example, a guard rail, a guard cable, etc. may of course be used as a foundation in each said embodiment. The size and size of each part constituting the block 1 can be changed within the intended range of the present invention so as to withstand the collision force allowed by the protective fence.
Further, the bottom plate 9 may be provided on the side surfaces 3b on both sides of the block body 2, or only the meat stealing portion 3c may be provided on the side surface 3b.

DESCRIPTION OF SYMBOLS 1 Base block 2 Block main body 3 Rectangular rod-shaped body 3a Upper surface 3b Side surface 4 End surface 5 Notch-shaped recessed part 6 U-shaped collar 6a Top inward 7 Convex part 7a Semicircular convex part 7b Upper end surface 8 Insert nut 9 Bottom plate 10 Column hole 20 In Block 21 Bolt insertion hole 22 Lower surface 23 Outer peripheral surface 24 Protrusion 25 Recessed portion 30 Bolt 40 Space 50 Guard fence 51 Support column W Width X Horizontal axis (length direction)
H Height direction Y Vertical axis (Height direction)
L Connection interval G Road surface

Claims (3)

It is a basic block for a protective fence that is provided with a column hole on its upper surface as appropriate and is connected to both ends in the length direction, and is continuously installed along the road edge. The width (W of the rectangular rod-shaped body (3) ) It is on the horizontal axis (X) facing the length direction at the center, and is extended by the same length from both end faces (4) and (4) of the rectangular rod-shaped body (3) in the length direction. both end faces (4) and (4) respectively of the vertical axis in the height direction (H) that put the (Y) (Y) between the block coupling interval (L), both end faces (4) (4) are each vertically The circular arc surface centering on the axis (Y) is formed into a notch-shaped recess (5) (5) directed in the height direction (H), and the end face (4) on one side of the rectangular rod (3) has a notch It provided I passed the whole area to Jo recess (5) the height direction (H), near the rectangular rod-like body top portion side curved in plan view from one side of (3) to (6a) on the vertical axis (Y) Cough Projecting U-rod (6), also the other end surface of the rectangular rod-shaped body (3) (4), the lower forms a segmental recess (5) in the upper side of the height direction (H) passed to the width (W) direction Rutotomoni convex portion protruding from one side to the horizontal axis (X) direction of the rectangular rod-shaped body (3) (7) is provided, the convex portion protruding end (7) flat plane when viewed the longitudinal axis (Y) centered on the one side of the semi-circular protrusion the arcuate recess (5) made of substantially the same arcuate surface of the end face (4) of the other rectangular rod-like body connecting (3) in ( 7a), the height of the upper end surface (7b) of the convex portion (7) substantially coincides with the lower end of the U-shaped flange (6), and the vertical axis (Y) position of the upper end surface (7b). A block body (2) in which an insert nut (8) is embedded, and an outer peripheral surface (23) substantially coincide with the arcuate surfaces of the semicircular concave portion (5) and the semicircular convex portion (7a), and Above the rectangular rod (3) A cylindrical body having a height from (3a) to the upper end of the U-shaped flange (6), and a bolt block (20) having a bolt insertion hole (21) provided vertically at the center of the arc, and a bolt (30 ), And the block main bodies (2) at each connection interval (L) are arranged on one side of the other block main body (2) on the other semicircular convex part (7a) on one block main body (2). In addition, the lower end of the U-shaped ridge (6) on one side is placed on the upper end surface (7b) of the semicircular convex portion (7a) with the cutout concave portion (5) in contact, Is joined with the insert nut (8) on the upper end surface (7b) facing the side (6a), and the U- shaped cavity (40) in a state where the other-side and one-sided cutout recesses (5) face each other , The filling block (20) is placed on the upper end of the character pad (6), and the outer peripheral surface (23) of the filling block (20 ) is Wherein in a state of being close to the arcuate recess (5) Chutsume block (20) and is fitted, the Chutsume block (20) of the bolt insertion holes in the state inserted into the (21) bolt (30) A base block for a protective fence, which is connected to an insert nut (8) of an upper end surface (7b) on the other side of one block body (2) in a screwed and fastened state. Chutsume block (20) have a projection (24) on the lower surface (22), said projection (24) is a side view against the horizontal axis (X) direction of the block body (2), the U-shaped lever ( 6) is provided with a downward recessed portion (25) for fitting, and is stored in a state in which the U-shaped flange ( 6) is fitted to the recessed portion (25) when the plurality of block bodies (2) are connected. The basic block for a protective fence according to claim 1.   A bottom plate (9) is provided on one or both sides of the side surface (3b) of the rectangular rod-shaped body (3) so as to be continuous with the lower end portion thereof and project outward in the width (W) direction and extend in the length direction. A basic block for a protective fence according to claim 1 or claim 2.

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