JP4167971B2 - Side groove jumping prevention structure - Google Patents

Description

  The present invention relates to a structure for preventing jumping of a grating lid laid in a groove opening of a side groove block made of concrete.

  In this type of side groove block, the upper wall is integrally formed on the upper surfaces of the front and rear ends of the left and right side walls, and the groove opening between the front and rear upper walls is covered with a concrete lid or grating. The side groove blocks are butt-connected in the front-rear direction. Therefore, Patent Document 1 discloses that upper walls of adjacent both-side groove blocks are fastened with a long bolt inserted between them and a nut that is screwed to the long bolt.

  Patent Document 2 discloses that when a grating is disposed in the side groove block, a jumping prevention structure is provided between the upper wall of the side groove block and the end of the grating that is abutted against the upper wall. Here, a jump-up preventing structure having the same specification is also provided between the concrete lid and the grating.

Japanese Utility Model Publication No. 4-22513 (FIG. 1, tightening hole 20) JP 2003-27576 A (paragraph number 0087, FIG. 10)

  In the spring-up preventing structure of Patent Document 2, a support bar is attached to the opening side surface of the upper wall of the side groove block, and a locking member that swings around the crossbar is hung on the grating, and this lock member is hooked on the support bar. .

  However, it is troublesome to attach the support rod dedicated to the lock to the side groove block one by one. Above all, the support rod and the lock member that can be hooked on this are uneasy in terms of strength.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to propose a structure for preventing the side grooves from jumping up, which can firmly and securely fix the grating to the side groove blocks for a long period of time using the long bolts for connecting the side groove blocks.

  As shown in FIGS. 1 and 2, the side groove targeted by the present invention has upper walls 3, 3 that connect the left and right side walls 2, 2 on the upper surfaces of the front and rear longitudinal ends of the opposite left and right side walls 2, 2. In order to butt and connect the side wall block 1 made of concrete and the upper walls 3 and 3 of adjacent side groove blocks 1, a long bolt 7 inserted between the upper walls 3 and 3, A nut 9 to be screwed and a grating 12 laid in the groove opening 5 between the upper walls 3 and 3 of the selected side groove block 1 are included.

  The present invention has a spring-up preventing structure for fixing the grating 12 to the side groove block 1 in the side groove. The spring-up preventing structure includes a stopper 19, a fastening plate 29, and a retaining bolt 30. As shown in FIG. 6, the stopper 19 has a hole 26 that allows the long bolt 7 to be inserted, and is fixed to the side surface facing the groove opening 5 of the upper wall 3 of the side groove block 1 by fastening with the long bolt 7 and the nut 9. And a receiving piece 20 connected to the fixing piece 21. As shown in FIGS. 1 and 4, the fastening plate 29 is attached between the main bars 15, 15 of the grating 12 so as to prevent it from coming down, and has a bolt insertion hole 31. The set bolt 30 is inserted from above into the bolt insertion hole 31 of the fastening plate 29, and the tip is screwed to the receiving piece 20 side of the stopper 19.

  More specifically, the stopper 19 includes a horizontal receiving piece 20, a vertical fixing piece 21 rising from the receiving piece 20, and a lower surface of the grating 12 rising from the receiving piece 20 as shown in FIG. It comprises an upright piece 22 to be received.

  On the left and right side walls 2 and 2 facing the groove opening 5 of the side groove block 1, receiving surfaces 10 and 10 for receiving the concrete lid 11 are formed in steps as shown in FIG. 1, and the receiving surfaces of the left and right side walls 2 and 2 are formed. 10 and 10, the left and right ends of the grating 12 are received via the raising members 13 and 13. The raising members 13 and 13 can be welded to the grating 12.

  The concrete lid 11 has an auxiliary stopper 32 that fixes the grating 12 having a smaller vertical height than that of the concrete lid 11 in order to prevent it from jumping out. As shown in FIG. 5, the auxiliary stopper 32 includes an upper piece 33 that is detachably bolted to the lower surface of the grating 12, a connecting piece 35 that extends downward from one end of the upper piece 33 in the front-rear direction, and a connecting piece 35. It consists of a lower piece 36 that extends horizontally from the lower end and receives the lower surface of the concrete lid 11.

  According to the present invention, the fastener 19 is fastened and fixed to the upper wall 3 by using the long bolt 7 connecting the upper walls 3 and 3 of the side groove blocks 1 and 1, and the end of the grating 12 is attached to the fastener 19. A method of screwing with a set bolt 30 is adopted. Therefore, the end of the grating 12 is securely fixed to the upper wall 3 of the side groove block 1 by bolting, and the jumping of the grating 12 can be prevented over a long period of time.

  When the stopper 19 has the upright piece 22, when the stop bolt 30 is screwed into the receiving piece 20 side, the screwing limit of the set bolt 30 is regulated by receiving the lower surface of the grating 12 at the upper end of the upright piece 22. However, it is possible to prevent the stopper 19 from being deformed.

  When the grating 12 is received on the receiving surfaces 10 and 10 of the groove opening 5 of the side groove block 1 via the raising member 13, the concrete lid 11 having a thickness in the vertical direction in the groove opening 5 and the vertical height is smaller than this. Even when the grating 12 is laid at the same time, the upper surfaces of the both 11 and 12 can be made flush.

  In addition, when the concrete lid 11 and the grating 12 are bolted using the auxiliary stopper 32, the grating 12 can be firmly fixed without the front and rear ends jumping out even if the concrete lid 11 is interposed. .

First Embodiment FIGS. 1 to 6 show a first embodiment of the present invention, in which reference numeral 1 denotes a concrete side groove (foundation) block for constructing a side groove.

  As shown in FIGS. 1 to 3, the side groove block 1 is integrally provided on the upper surfaces of the opposite left and right side walls 2, 2 and both ends in the longitudinal direction of the left and right side walls 2, 2 to connect the left and right side walls 2, 2. Including the upper walls 3 and 3, the lower surface is open. The upper surface between the upper walls 3 and 3 of the side groove block 1 is opened as a groove opening 5 as shown in FIG. As shown in FIG. 6, a pair of through-holes 6 and 6 penetrating in the front-rear direction are provided on the left and right of each upper wall 3.

  In constructing the side grooves, the side groove blocks 1 are laid in a front-rear direction on a concrete foundation, and bottomed concrete is cast from the groove openings 5 to form the groove bottom surfaces of the side grooves.

  As shown in FIG. 4, the side groove blocks 1, 1 adjacent to the front and rear face the opening side surfaces of the upper walls 3, 3 at the front and rear ends, and pass the long bolts 7 through the through holes 6 in the front-rear direction. By connecting the nut 9 to the protruding end, the connection is made sequentially.

  On the left and right side walls 2 and 2 of each side groove block 1, receiving surfaces 10 and 10 are formed near the upper end facing the groove opening 5, and the concrete lid 11 that closes the groove opening 5 is received by the receiving surfaces 10 and 10. .

  In one side groove block 1, the groove opening 5 may be blocked by only a few concrete lids 11. In FIG. 2, one concrete lid 11 is arranged at the center and two gratings 12. An example in which 12 is arranged is shown. In FIG. 3, the groove opening 5 of one side groove block 1 is closed by one grating 12 that is long in the front-rear direction. These arrangement methods can be arbitrarily selected.

  However, as for the height of the receiving surfaces 10 and 10, the depth dimension is set based on the concrete lid 11, the vertical height dimension of the grating 12 is smaller than the vertical dimension of the concrete lid 11. Therefore, the grating 12 which should close the upper surface of the groove opening 5 is received by the receiving surfaces 10 and 10 via the raising members 13 and 13 made of a metal hollow frame material, as shown in FIG. ing. Raising members 13 and 13 are welded to the left and right ends of the lower surface of the grating 12. Thereby, the upper surfaces of the concrete lid 11 and the grating 12 under mounting are substantially flush with the upper surfaces of the left and right sidewalls 2 and 2 and the upper walls 3 and 3 of the gutter block 1.

  The metal grating 12 includes left and right main bars 15 arranged at a constant pitch in the front-rear direction, left and right end bars 16 where the left and right ends of each main bar 15 are welded, and front and rear arranged at the upper ends of the main bars 15 group. It is a well-known thing which consists of the crossbar 17 which runs to a direction.

  When the grating 12 is laid in the side groove of the road through which the vehicle passes to improve water drainage on the road surface, the grating 12 is easily stepped on the vehicle and jumps up, and it is necessary to prevent this.

  Therefore, the present invention is characterized in that a structure for preventing the jumping of the grating 12 is provided by using the long bolt 7 and the nut 9 for connecting the upper walls 3 and 3 of the adjacent both side groove blocks 1 and 1. Have.

  A metal stopper 19 is prepared as the spring-up preventing structure. As shown in FIGS. 1 and 6, the stopper 19 is a horizontally long and flat receiving piece 20 that is horizontally set, and a vertical shape that is welded up from the left and right ends of the receiving piece 20 and is welded upward. The fixed piece 21 and the standing piece 22 which is welded to the left and right of the receiving piece 20 and stands upward. Through holes 23 are provided on the left and right sides of the receiving piece 20, and nuts 25 are welded around the through holes 23 on the lower surface of the receiving piece 20.

  Each fixing piece 21 is made of a metal plate having a predetermined left-right width, and is arranged in the left-right direction with respect to the receiving piece 20 on the upper surface of one end side in the front-rear width direction of the receiving piece 20, An insertion hole 26 for the long bolt 7 is provided. In the drawing, reference numeral 27 denotes a reinforcing plate welded between the receiving piece 20 and the fixed piece 21 in order to maintain the orthogonal shape.

  On the other hand, a metal fastening plate 29 is welded between the lower ends of adjacent main bars 15 and 15 on one end side of the grating 12 in the front-rear direction, and a set bolt 30 is inserted into the fastening plate 29 from above. Bolt insertion holes 31 are provided.

  Now, when laying the grating 12 in the groove opening 5 of the side groove block 1, each fixing piece 21 of the stopper 19 is attached to the opening side surface of the upper wall 3, and each long bolt 7 is inserted into the hole 26 of the fixing piece 21. When the upper walls 3 and 3 are fastened with the long bolt 7 and the nut 9, the fixing piece 21 is fastened together, so that the stopper 19 is placed on the upper wall 3 so that the receiving piece 20 thereof is in a horizontal posture. Fix it. As shown in FIG. 6, a recess 3 a into which the fixing piece 21 is fitted in a non-rotating manner is formed on the front and back side surfaces of each upper wall 3.

  Thereafter, the grating 12 is mounted in the groove opening 5 of the side groove block 1 as described above. At this time, the receiving piece 20 of the stopper 19 is located so as to wrap around below the end of the grating 12 as shown in FIG. From this state, the set bolt 30 is inserted into the bolt insertion hole 31 of the fastening plate 29 from above the grating 12, and the lower end of the set bolt 30 is screwed into the nut 25 through the through hole 23. Thus, the end of the grating 12 is bolted to the upper wall 3 via the stopper 19.

  When the fastening bolt 30 is fastened, the upper end of the upright piece 22 of the fastener 19 is received by the main bar 15 of the grating 12 or the lower surface of the fastening plate 29 when the fastening bolt 30 is screwed into the nut 25. The tightening limit is restricted, and simultaneously with the reinforcing plate 27, the receiving piece 20 is prevented from undergoing bending deformation with respect to the fixed piece 21.

  In the use form of FIG. 3 in which only one long grating 12 is mounted in the groove opening 5 of the side groove block 1, the front and rear ends of the grating 12 are respectively attached to the upper walls 3 and 3 of the side groove block 1 with stoppers 19 and 19, respectively. It will be used and fixed as described above.

  In the usage form of FIG. 2 in which the concrete lid 11 and the grating 12 are arranged in the groove opening 5 of one side groove block 1, the grating 12 is also fixed to the concrete lid 11 by the auxiliary stopper 32.

  As shown in FIG. 5, the auxiliary stopper 32 therefor includes a rectangular upper piece 33, a connecting piece 35 that is bent so as to extend downward from one end in the front-rear direction of the upper piece 33, and an upper piece from the lower end of the connecting piece 35. 33 is a press-formed product of a metal plate composed of a lower piece 36 that is bent so as to extend horizontally in the opposite direction, and a bolt hole 37 is formed in the center of the upper piece 33 in a penetrating manner. A nut 39 is welded around the bolt hole 37 on the lower surface of 33.

  The auxiliary stopper 32 is detachably bolted to the lower surface of the grating 12 via the upper piece 33. For this purpose, a bolt receiver 40 and a bolt 41 are provided. As shown in FIG. 5, the bolt receiver 40 includes a main surface plate 43 having a bolt hole 42 in the center, side plates 44 and 44 that are bent upward from the front and rear ends of the main surface plate 43, and upper ends of the side plates 44 and 44. It has latching pieces 45 and 45 which are bent and arranged outward.

  In addition, first, at one end of the grating 12 facing the concrete lid 11 in the front-rear direction, the bolt receiver 40 is hung on the upper surface between the adjacent main bars 15 and 15. That is, the main face plate 43 and the both side face plates 44 and 44 of the bolt receiver 40 are fitted between the main bars 15 and 15, and the front and rear latch pieces 45 and 45 are hung on the upper ends of the main bars 15 and 15, respectively. Stop and lock.

  Next, the upper piece 33 of the auxiliary stopper 32 is applied to the lower surface between the adjacent main bars 15 and 15, the bolt 41 is inserted into the bolt hole 42 of the bolt receiver 40 from above, and the lower end of the bolt 41 is connected to the bolt. The auxiliary stopper 32 is bolted to the grating 12 by being screwed into the nut 39 through the hole 37.

  Thereafter, the concrete lid 11 is dropped and attached to the groove opening 5 of the side groove block 1, and the lower surface of the end of the concrete lid 11 is received by the lower piece 36. Thus, the grating 12 is fixed in a state in which the jumping is prevented even on the side facing the concrete lid 11.

(Second Embodiment) FIG. 7 shows a second embodiment of the present invention, wherein the fastening plate 29 has the same specifications as the bolt receiver 40 shown in FIG. Thus, the stopper 19 is fastened with a set bolt 30. Since the other configuration is substantially the same as that of the first embodiment, the same members are denoted by the same reference numerals and description thereof is omitted.

  The receiving piece 20 and the fixing piece 21 of the stopper 19 may be made of a metal plate or plastic bent into an L shape. Adjacent gutter blocks 1 and 1 may have upper walls 3 and 3 fastened with a single long bolt 7 at a central portion in the left-right direction.

  The set bolt 30 may be screwed into a screw hole provided in the receiving piece 20 of the stopper 19. Similarly, the bolt 41 may be of a type that is screwed into a screw hole provided in the upper piece 33 of the auxiliary stopper 32. The fastening plate 29 in the first embodiment may be welded to the upper ends between the adjacent main bars 15 and 15, as can be seen from the second embodiment of FIG.

AA line sectional view in FIG. Top view in the form of a concrete lid and grating Top view in the form of only a long grating Longitudinal profile side view Longitudinal side view showing fixing structure of grating to concrete lid The perspective view of the structural member of this invention Longitudinal side view of main part showing second embodiment of the present invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Side groove block 2 Side groove block side wall 3 Side groove block upper wall 5 Side groove block groove opening 7 Long bolt 9 Nut 11 Concrete lid 12 Grating 13 Raising member 15 Main bar 16 End bar 19 Stopper 20 Stopper receiving piece 21 Stopper Fixing piece 22 Stopper standing piece 26 Hole 29 Fastening plate 30 Stop bolt 31 Bolt insertion hole 32 Auxiliary stopper 33 Auxiliary stopper upper piece 35 Auxiliary stopper connecting piece 36 Auxiliary stopper lower piece 39 Nut 40 Bolt Receiver 41 Bolt 42 Bolt hole

Claims (4)

A concrete side groove block 1 provided with upper walls 3, 3 that connect the left and right side walls 2, 2 on the upper surface of the front and rear longitudinal ends of the opposite left and right side walls 2, 2;
A long bolt 7 inserted between the upper walls 3 and 3 and a nut 9 screwed into the long bolt 7 in order to butt and connect the upper walls 3 and 3 of the adjacent gutter blocks 1;
A grating 12 laid in the groove opening 5 between the upper walls 3 and 3 of the selected side groove block 1;
In the side groove jump-up preventing structure for fixing the grating 12 to the side groove block 1,
A fixing piece 21 that has a hole 26 that allows insertion of the long bolt 7 and that is fixed to the side face of the upper wall 3 of the side groove block 1 that faces the groove opening 5 by fastening with the long bolt 7 and the nut 9; A stop 19 including a receiving piece 20 leading to
A fastening plate 29 provided between the main bars 15 and 15 of the grating 12 for preventing downward slipping and having a bolt insertion hole 31;
A structure for preventing the side groove from jumping up, comprising a stop bolt 30 inserted into the bolt insertion hole 31 of the fastening plate 29 from above and having a tip screwed to the receiving piece 20 side of the stopper 19.   The stopper 19 comprises a horizontal receiving piece 20, a vertical fixing piece 21 rising from the receiving piece 20, and an upstanding piece 22 standing from the receiving piece 20 and receiving the lower surface of the grating 12. Structure to prevent side grooves from jumping up. On the left and right side walls 2, 2 facing the groove opening 5 of the side groove block 1, receiving surfaces 10, 10 for receiving the concrete lid 11 are formed in steps,
The structure for preventing lateral grooves from jumping up according to claim 1 or 2, wherein the left and right ends of the grating 12 are received by the receiving surfaces 10 and 10 of the left and right side walls 2 and 2 via the raising members 13 and 13, respectively. The concrete lid 11 has an auxiliary stopper 32 for fixing the grating 12 having a smaller vertical height than that to prevent the jumping out.
The auxiliary stopper 32 is detachably bolted to the lower surface of the grating 12, the connecting piece 35 extending downward from one end in the front-rear direction of the upper piece 33, and extending horizontally from the lower end of the connecting piece 35. The structure for preventing the side groove from jumping up, comprising: a lower piece 36 that is taken out and receives the lower surface of the concrete lid 11.

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