JP4303632B2 - Grating - Google Patents

Description

  The present invention relates to a grating in which a main member and a transverse member are formed in a lattice shape in an outer frame, and in particular, a cross-section U such as a side groove or a transverse groove provided for draining rainwater on a road or a sidewalk. The present invention relates to a grating installed as a lid in a letter-shaped groove (hereinafter referred to as a U-shaped groove).

  On roads and sidewalks, U-shaped grooves such as side grooves and transverse grooves are usually provided to drain rainwater. The U-shaped groove includes a lid made of concrete or iron plate as a lid, but in recent years there are many openings and good drainage, and the U-shaped groove is clogged with dust. Grating with the advantage that it can be easily confirmed is often used. Grating is usually configured by forming a main member and transverse members in a grid pattern in the outer frame, and in the grating using angle steel for the end plate of the outer frame, the flange portion of the angle steel is formed on the upper edge of the U-shaped groove. In the grating using the flat steel for the end plate of the outer frame, it is dropped into the receiving part formed on the upper edge of the U-shaped groove and attached to be openable and closable.

  By the way, in the case of the U-shaped groove on which the grating is placed and mounted, the upper edge of the U-shaped groove to be placed usually remains concrete, and there is a considerable amount of space between the grating and the U-shaped groove. Because there is a gap, cars such as bicycles and automobiles may run on the grating, and even if people pass, they may make a rattling sound, especially in residential areas. In addition, there is a concern about the jump. In order to prevent the generation of noise, there are some with noise prevention materials such as rubber attached to the gap, but the durability is poor and the maintenance work such as replacement is difficult.

  Also, in the case of a U-shaped groove provided by dropping the grating, the receiving part is usually in the form of concrete, or an angle steel is attached to the concrete via an anchor, and between the grating and the receiving part. Since there is a considerable gap, as in the case of the grating mounted on the upper edge of the U-shaped groove, a vehicle such as a bicycle or a car runs on the grating of the U-shaped groove or a person passes. However, it may make a rattling sound, especially in residential areas, and this sound is a problem for the ears, and there is also a fear of jumping up. On the other hand, it is possible to improve this and drop the grating into the receiving part and fix it with anchor bolts and nuts. However, in this case, it can be firmly fixed and no sound is generated, but dust etc. are removed. In some cases, it takes time to open and close, resulting in poor workability.

Accordingly, the present inventors have developed and proposed a grating for solving the above problems (see Japanese Patent Application Laid-Open No. 2003-268865 (Patent Document 1)). However, this proposed grating has the advantages that it does not cause much trouble in the operation of removing dust, etc., and it can prevent the generation of noise such as rattling and rattling in the running of a car, etc., and can also prevent jumping up. However, there is a concern that the function to prevent jumping may be impaired especially on a road in a port where heavy vehicles with a large load are frequently run.
JP 2003-268865 A

  The present invention has been made in view of the above circumstances, and its purpose is to prevent generation of noise such as rattling and rattling during traveling of a car without causing much trouble in the operation of removing dust and the like. In addition, the present invention provides a grating that can function to prevent the vehicle from jumping even when a heavy vehicle travels.

In order to achieve the above object, the grating according to the present invention (Claim 1) is a grating in which a main member and a transverse member are formed in a lattice shape in an outer frame, and between the parallel main members or the bottom surface of the main member. A support member provided near the outer frame, an attachment member fixed to the support member by a bolt, a rotation member attached to the attachment member via a horizontal shaft, and the rotation member A tightening bolt that is in contact with one end of the mounting member and is screwed onto the mounting member from the upper surface side of the mounting member, and rotates the tightening bolt in the entering direction to raise the tip of the rotating member and attach the grating If it is engaged the tip open face of the recess which is open in a downward receiving metal fixed to the receiving portion provided in the U-shaped groove for, axis before SL of the horizontal axis substantially water opened face of the recess Jump prevention fitting configured to be those formed by including the.

  According to the grating according to the present invention, it is possible to prevent generation of noise such as rattling and rattling during traveling of a car without causing much trouble in the operation of removing dust and the like, and the mounting member is provided via a horizontal shaft. The rotating member can be moved up and down in the vertical direction by forward / reverse rotation of the fastening bolt provided on the mounting member, so that the end of the rotating member on the side of the anti-tightening bolt is raised and provided on the side groove side. Even when a heavy vehicle with a large load travels, the function of preventing jumping can be achieved. In addition, since the mounting member is fixed to the support member with a bolt, in the unlikely event that the rotating member or the like malfunctions and the splash-up preventing function is impaired, the mounting member can be replaced and maintenance is easy. It is.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view of a grating according to the present invention, in which a is a front view, b is an AA cross-sectional view of a, FIG. 2 is an enlarged explanatory view of a portion X in FIG. 4 is an enlarged sectional view taken along line CC in FIG. 3, FIG. 5 is an enlarged sectional view taken along line DD in FIG. 3, and FIG. 6 is an enlarged sectional view taken along line EE in FIG. is there. In the figure, 1 is a grating, and 2 is a U-shaped groove. In the following description, front and rear refer to the front as viewed from the front, lower as the rear, and left and right refer to the drawing.

  The grating 1 includes a main member 3 made of flat steel arranged at a predetermined interval in the width direction up and down, welded and fixed as flat plates as end plates 4 at both ends in the longitudinal direction, and further crossed over the main member 3 to screw The horizontal members 5 made of bars are arranged at predetermined intervals like the main member 3 and are manufactured by pressing the horizontal members 5 between the main members 3 by projection welding so as to be flush with each other. is there. The front and rear end plates 4 and the main members 3 at the left and right ends constitute an outer frame.

  A flat portion having a vertical through-hole 6 at a position corresponding to a substantially central portion between the main members 3 and 3 in the middle portion between the front and rear end plates 4 between the main members 3 and 3 near the center of the grating 1. Steel support members 7 and 7 are fixed by welding. An attachment member 8, which will be described in detail later, is attached to the through hole 6 of the support member 7 with an attachment bolt 9.

  The attachment member 8 includes an elongated plate 12 provided with through holes 10 and 11 at two locations in the longitudinal direction, a nut 13 that is welded and fixed substantially concentrically with the through hole 10 on the lower surface on the through hole 10 side, A nut 14 that is welded and fixed substantially concentrically with the through hole 11 on the upper surface on the through hole 11 side, and a plate member 15 that is welded and fixed downward on both side edges in the width direction of the lower surface on the through hole 11 side; A hexagon socket set screw 16 that is screwed onto the nut 14 is provided, and a boat-like turning member 18 is rotatably provided with a pin 17 interposed between the plate members 15 and 15. It is configured. The mounting member 8 is arranged near the end plate 4 on the side of the through-hole 11, and is supported by the mounting bolt 9 with the through-hole 10 overlapped substantially concentrically with the through-hole 6 of the support member 7 on the lower surface of the support member 7. It is attached to the member 7. Thus, the support member 7, the mounting member 8, the rotating member 18, and the hexagon socket set screw (clamping bolt) 16 constitute a spring-up preventing metal fitting.

  In addition, although the ship shape was illustrated as the said rotation member 18, it is not limited to this shape, In short, when the hexagon socket head set screw 16 is rotated in the advancing / retreating direction with a wrench, the distal end portion of the rotation member 18 is used. What is necessary is just to be provided so that 19 can be raised / lowered and latched with the receiving metal fitting 23 which mentions details later.

  As shown in FIGS. 1 and 2, the U-shaped groove 2 to which the grating 1 having the above configuration is attached is provided with a receiving portion 20 having an L-shaped cross section at the upper edge of the U-shaped groove 2 in order to attach the grating 1. The angle steel 21 is attached to the receiving portion 20 via an anchor (not shown). Then, on the surface of the side surface portion 22 of the angle steel 21 at the position corresponding to the support member 7 of the grating 1, a concave receiving metal fitting 23 is turned upside down and the central concave portion 24 is opened downward and fixed by welding. ing.

  The grating 1 according to the present invention having the above-described configuration is attached to the L-shaped receiving portion 20 (an angle steel 21) formed in the upper edge of the U-shaped groove 2 in the following manner so as to be opened and closed. used. That is, the hexagon socket set screw 16 of the mounting member 8 provided in the grating 1 is rotated in the backward direction with a wrench and the tip 19 of the rotating member 18 is lowered (the tip 19 of the rotating member 18 is In this state, the U-shaped groove 2 is dropped into the angle steel 21. Next, the hexagon socket set screw 16 is rotated in the entry direction with a wrench to raise the tip 19 of the rotating member 18, and the tip 19 is locked to the recess 24. Thus, the grating 1 is installed in the U-shaped groove 2.

  In the state where the grating 1 is installed in the U-shaped groove 2 as described above, the distal end portion 19 of the rotating member 18 is pushed up by rotating the hexagon socket set screw 16 in the entering direction with a wrench. Since the recessed portion 24 of the metal fitting 23 is in a locked state, the grating 1 rattles between the angle steel 21 of the U-shaped groove 2 unless the hexagon socket set screw 16 is reversed to release the locked state. It is possible to prevent the sound such as rattling and rattling from running when driving a car. At the same time, it is possible to prevent the grating 1 from being lifted or detached from the U-shaped groove 2.

  Further, when opening the grating 1, the hexagon socket set screw 16 is rotated backward using a wrench to release the locked state between the distal end portion 19 of the rotating member 18 and the recessed portion 24 of the receiving bracket 23. Can be opened. In this way, the locked state between the distal end portion 19 of the rotating member 18 and the recess 24 of the receiving metal fitting 23 can be easily released, so that the operation of removing dust and the like can be performed without any trouble.

  7 is an enlarged explanatory view of a main part of another embodiment of the grating according to the present invention (an explanatory view corresponding to FIG. 2), FIG. 8 is an enlarged sectional view taken along line FF in FIG. 7, and FIG. GG is an enlarged sectional view of FIG. 10, FIG. 10 is an enlarged sectional view of HH of FIG. 8, and FIG. 11 is an enlarged sectional view of II of FIG. The grating 25 shown in this figure has a configuration in which the support member 7 is welded and fixed between the main members 3 and 3 near the center of the grating 1 in the grating 1 in the above-described embodiment. It is made into the form fixed to the lower surface of the welding by welding. The basic structure of the grating 25 is the same as the basic structure of the grating 1 and is denoted by the same reference numeral.

  The grating 25 has a main member 3 made of flat steel arranged at predetermined intervals in the width direction up and down, and welded and fixed to the main member 3 at both ends of the longitudinal direction as end plates 4, and screwed to the main member 3. The horizontal members 5 made of bars are arranged at predetermined intervals like the main member 3 and are manufactured by pressing the horizontal members 5 between the main members 3 by projection welding so as to be flush with each other. is there. The front and rear end plates 4 and the main members 3 at the left and right ends constitute an outer frame.

  On the bottom surface near the end plate 4 before and after the plurality of (four in this example) main members 3 near the center of the grating 25, the vertical direction extends to a position corresponding to the substantially central portion between the central main members 3 and 3. The flat steel support members 28 and 28 having vertical through holes 27 and 27 at positions substantially corresponding to the central portion between the left and right main members 3 and 3 are fixed by welding. A mounting member 29, which will be described in detail later, is attached to the through hole 27 of the support member 28 by mounting bolts 30 and nuts 31.

  The attachment member 29 has a through-hole 32 at the center in the longitudinal direction (left-right direction), an elongated plate member 34 provided with through-holes 33, 33 on the left and right sides thereof, and a concentricity with the through-hole 32 on the upper surface of the through-hole 32. It is configured to include a nut 35 fixed by welding and a plate member 36 welded and fixed downward on the left and right sides of the lower surface of the through-hole 32, and a square set screw 37 screwed into the nut 35. A rotating member 39 is rotatably provided with a pin 38 interposed between the plate members 36 and 36. The mounting member 29 is formed by inserting a nut 35 into the through hole 26 of the support member 28 on the lower surface of the support member 28, and overlapping the through hole 33 with the through hole 27 of the support member 28 substantially concentrically. The nut 31 is attached to the support member 28. Reference numeral 40 denotes a snap pin for preventing the pin 38 from coming off. Thus, the support member 28, the mounting member 29, the rotating member 39, and the square set screw (clamping bolt) 37 constitute a spring-up preventing metal fitting.

  In addition, although the said rotation member 39 illustrated the geometric shape, it is not limited to this shape, and the point is that when the square set screw 37 is rotated in the advance / retreat direction with a wrench, the rotation member 39 It is only necessary that the distal end portion 41 is provided so as to be able to be moved up and down and locked to a receiving metal fitting 47 whose details will be described later.

  As shown in FIGS. 7 and 8, the U-shaped groove 42 to which the grating 25 having the above structure is attached is provided with a receiving portion 43 having an L-shaped cross section at the upper edge of the U-shaped groove 42 in order to attach the grating 25. The angle steel 44 is attached along the receiving part 43 via an anchor (not shown). Further, a receiving metal fitting 47 having an opening 46 is welded and fixed to the bottom surface 45 of the angle steel 44 at a position corresponding to the support member 28 of the grating 25 so that the opening 46 is directed into the U-shaped groove 42. ing.

  The grating 25 according to the present invention having the above-described configuration is dropped into a receiving portion 43 (an angle steel 44) having an L-shaped cross section formed on the upper edge of the U-shaped groove 42 in the following manner, and attached so as to be opened and closed. used. That is, the square set screw 37 of the mounting member 29 provided in the grating 25 is rotated in the backward direction with a wrench and the tip 41 of the turning member 39 is lowered (the tip 41 of the turning member 39 is the receiving bracket). 47 is not engaged with the opening 46 of the opening 47, and in this state, the U-shaped groove 42 is dropped into the angle steel 44. Next, the square set screw 37 is rotated in the entry direction with a wrench to raise the tip portion 41 of the rotating member 39, and the tip portion 41 is locked to the opening 46. Accordingly, the grating 25 is installed in the U-shaped groove 42.

  In the state where the grating 25 is installed in the U-shaped groove 42 as described above, the distal end portion 41 of the rotating member 39 is pushed up by rotating the square set screw 37 in the entering direction with a wrench, and the receiving metal 47 Therefore, the grating 25 does not rattle with the angle steel 44 of the U-shaped groove 42 unless the square set screw 37 is reversed to release the locked state. It is possible to prevent the generation of noises such as rattling and rattling during driving. At the same time, it is possible to prevent the grating 25 from being lifted or removed from the U-shaped groove 42.

  When the grating 25 is opened, the square set screw 37 is rotated backward using a wrench to release the locked state between the tip 41 of the rotating member 39 and the opening 46 of the metal fitting 47. Can be opened. In this way, the locked state between the distal end portion 41 of the rotating member 39 and the opening portion 46 of the receiving metal fitting 47 can be easily released, so that the operation of removing dust and the like can be performed without hindrance.

It is explanatory drawing of the grating which concerns on this invention, Comprising: a is a front view, b is AA sectional drawing of a. FIG. 2 is an enlarged explanatory view of a portion X in FIG. 1. It is BB expanded sectional drawing of FIG. It is CC sectional drawing of FIG. It is DD expanded sectional drawing of FIG. It is EE expanded sectional drawing of FIG. It is principal part expansion explanatory drawing (description figure equivalent to FIG. 2) of another embodiment of the grating which concerns on this invention. It is FF expanded sectional drawing of FIG. It is GG expanded sectional drawing of FIG. It is HH expanded sectional drawing of FIG. It is II expanded sectional drawing of FIG.

Explanation of symbols

1: Grating 2: U-shaped groove 3: Main member 4: End plate 5: Transverse member 6: Through hole 7: Support member 8: Mounting member 9: Mounting bolt 10, 11: Through hole 12: Plate material 13, 14: Nut 15: Plate material 16: Hexagon socket set screw 17: Pin 18: Rotating member 19: Tip part 20: Receiving part 21: Angle steel 22: Side face part 23: Bracket 24: Recessed part 25: Grating 26, 27: Through Hole 28: Support member 29: Mounting member 30: Mounting bolt 31: Nut 32, 33: Through hole 34: Plate material 35: Nut 36: Plate material 37: Square set screw 38: Pin 39: Rotating member 40: Snap pin 41: Tip portion 42: U-shaped groove 43: Receiving portion 44: Angle steel 45: Bottom portion 46: Opening portion 47: Receiving bracket

Claims (1)

In the grating in which the main member and the transverse member are formed in a lattice shape in the outer frame, a support member provided between the parallel main members or near the outer frame on the bottom surface of the main member, and fixed to the support member by bolts An attachment member, a turning member attached to the attachment member via a horizontal axis so as to be rotatable, and a tightening which is in contact with one end of the turning member and screwed to the attachment member from the upper surface side of the attachment member A bolt, rotating the tightening bolt in the approach direction to raise the tip of the rotating member, and downwardly receiving a metal fitting fixed to a receiving portion provided in a U-shaped groove for attaching the grating If the opened surface of the opened recesses engaged so the tip, comprises a bounce preventing fitting axis and open surface before Symbol recess of the horizontal axis is configured to be substantially horizontal It is characterized by Grating that.

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