JP3185743U - Side groove grating mounting structure - Google Patents

Abstract

[PROBLEMS] To provide a grating mounting structure for a side groove in which a raised member is provided at each of the left and right lower portions of the grating, and the grating is connected to a step portion of a groove block opening of a long side groove in the front and rear. Provided is a side groove grating mounting structure that maintains a stable buffering effect for a long period of time when a cushioning member interposed in the cushioning reduces the load and impact applied to the grating, and prevents the jumping and detachment of the grating.
A plurality of inner frames 3 each provided with a longitudinal side plate 3a on the left and right sides are connected to a step portion 2b of an opening 2a of a groove block 2 in the front-rear direction, and the left and right side plates 3a of the inner frame 3 are connected to each other. A buffer member 4 having an L-shaped cross section is hooked on each of the upper ends and is hung down to project laterally, and a raised member 1a is placed on the projecting surface and the grating 1 is bolted to the inner frame 3.
[Selection] Figure 2

Description

  The present invention relates to a technology for reducing rattling and noise in side grooves.

  Until now, the grating of the side groove has been installed by its own weight on the step portion of the opening of the concrete groove block. Therefore, since the metal and concrete are in direct contact, if a vehicle or a person passes over it, rattling and noise are likely to occur, and the rattling movement may cause the concrete to scrape and damage the groove block step. It was.

  To solve this problem, Patent Documents 1 to 5 disclose technologies for reducing rattling and noise by sandwiching a rubber plate between the grating and the stepped portion of the groove block and buffering the load and impact applied to the grating with the rubber plate. It is disclosed.

  However, these technologies only have a rubber plate sandwiched between the grating and the groove block, so if used for a long period of time, the position of the rubber plate will gradually shift due to the movement of the grating, providing a buffering effect. May decrease. In addition, although noise and damage to the groove block were alleviated, the grating jumped up due to impact or reaction, or could come off the groove block, leading to an unexpected accident.

Japanese Patent No. 3380149 Japanese Patent No. 3727169 JP 2002-138565 A JP 2005-320768 A JP 2011-89383 A

  The first problem to be solved by the present invention is to maintain a stable buffer effect over a long period of time. The second problem is to prevent the jumping and detachment of the grating.

The configuration of the present invention that solves this problem is as follows.
1) In the mounting structure of the side groove grating, in which a raising member is provided at each of the left and right sides of the grating, and a plurality of the gratings are connected to the step part of the groove block opening of the long side groove in the front and rear, the step of the groove block opening A plurality of inner frames provided with vertical side plates on the left and right sides are connected to the front and rear, and the upper end of the left and right side plates of the inner frame is hung by hanging a buffer member having an L-shaped cross section on each of the upper ends. Side groove grating mounting structure 2 characterized in that the grating is installed on the inner frame with a raised member placed on the projecting surface and mounted on the inner frame. 2) The grating is detachably fixed to the inner frame. 3) Grating mounting structure for side grooves as described in 3) A structure with a gap between the grating and the left and right raising members, and a presser plate with bolt holes is inserted in the left and right gaps and hung in the left-right direction. Set the mounting base with nuts between the left and right side plates of the inner frame and at the position where it overlaps the presser plate when the grating is placed. From the top, pass the fixing bolt through the bolt hole of the presser plate and screw it onto the nut of the mounting base. 2) The side groove grating mounting structure described in 2) above, in which the grating is fixed to the inner frame. 4) The inner frame structure is configured such that the lateral plates in the orthogonal direction with bolt holes are provided on the front and rear ends of the left and right side plates. The side groove grating mounting structure according to any one of 1) to 3), which is fixed so as to protrude outward.

  According to the configuration described in 1) of the present invention, since the buffer member is hooked on the left and right side plates of the inner frame, even if the grating placed on the overhanging surface of the buffer member is moved by a load or an impact, The position is difficult to shift, and a stable buffer effect can be maintained for a long time.

  According to the configurations described in the above 2) and 3) of the present invention, since the weight is greatly increased by fixing the grating to the inner frame that is connected to the front and rear, the jumping of the grating due to the impact or reaction when the vehicle is driven, Detachment can be prevented.

It is a top view which shows the attachment state of the grating of an Example. It is the sectional view on the AA line of FIG. It is a top view which shows the state which removed the grating of the Example. It is sectional drawing of the buffer member of an Example.

  As the buffer member of the present invention, an elastic member such as rubber is used, and a continuous long member or a short member may be attached at regular intervals. The buffer member may be attached with an adhesive or an adhesive tape. The left and right side plates of the inner frame may be framed by fixing the horizontal plate to the front and rear ends thereof, or the horizontal plate may be fixed to the intermediate portion, or may be framed by a mounting base instead of the horizontal plate. . If there is no gap for inserting the presser plate in the grating, a plate with a bolt hole may be welded to the lower surface of the grating.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, modes for carrying out the invention will be specifically described with reference to typical examples and drawings. In addition, this invention is not limited to a following example, Various combinations and deformation | transformation are possible.

  As shown in FIGS. 1 to 3, the grating 1 according to the present embodiment welds square pipe-shaped raising members 1 a to the left and right lower portions, and provides a gap between the left and right raising members 1 a and the grating 1. . The groove block 2 is provided with an opening 2 a with a step 2 b for installing the grating 1.

  The inner frame 3 has a horizontal plate 3b with bolt holes welded to the front and rear ends of the left and right side plates 3a that are vertically oriented, and a nut 3c is welded to the bolt hole of one of the horizontal plates 3b. The mounting base 3d bends the plate material in an inverted U-shaped cross section, opens a bolt hole in the horizontal portion, welds the nut 3e to the lower surface thereof, and overlaps the presser plate 6 when the grating 1 is placed on the left and right side plates 3a. Welded in position. The front and rear horizontal plates 3b project outward from the left and right side plates 3a.

  The shock-absorbing member 4 is long in the front-rear direction and is made of rubber having an L-shaped cross section having a vertical portion 4a and a horizontal overhanging portion 4b, as shown in FIG. 4, and a latching portion 4c is formed at the upper end of the vertical portion 4a. doing. The hooking portion 4c of the buffer member 4 is hooked on the upper end of the side plate 3a of the inner frame 3, the vertical portion 4a is in contact with the side surface of the side plate 3a, and the overhanging portion 4b is projected outward from the lower end of the side plate 3a. Yes.

  In this embodiment, as shown in FIG. 3, a plurality of inner frames 3 are arranged back and forth by hooking the protruding portion of the horizontal plate 3b of the inner frame 3 to the step 2b of the groove block 2, and the connecting bolts 5 are The inner frames 3 are connected to each other by screwing into the nut 3c of the horizontal plate 3b of the adjacent inner frame 3 from the bolt hole of the horizontal plate 3b.

  A presser plate 6 with a bolt hole is inserted in the gap between the grating 1 and the raising member 1a and is hung in the left-right direction, and the raising member 1a of the grating 1 is in this state as shown in FIGS. 4, the pressing plate 6 is placed on the mounting base 3 d and the fixing bolt 7 is screwed onto the nut 3 e of the mounting base 3 d from above the pressing plate 6 to fix the grating 1 to the inner frame 3.

  Even if a vehicle or a person passes over the grating 1 in this state, since the buffer member 4 is hooked on the side plate 3a of the inner frame 3, the position of the buffer member 4 is not affected even if the grating 1 is moved by a load or an impact. The stable buffering effect lasts for a long time. Further, since the weight of the grating 1 is significantly increased by being fixed to the inner frame 3, the grating 1 is prevented from jumping up or coming off due to impact or reaction.

  The technology of the present invention can be used for all gratings installed indoors and outdoors such as roads, sidewalks, parks, stations, parking lots, stores, schools, factories, gas stations, and pools.

DESCRIPTION OF SYMBOLS 1 Grating 1a Raising member 2 Groove block 2a Opening part 2b Step part 3 Inner frame 3a Side plate 3b Horizontal plate 3c Nut 3d Mounting base 3e Nut 4 Buffering member 4a Vertical part 4b Overhang | projection part 4c Latching part 5 Connecting bolt 6 Holding plate 7 Fixing bolt

Claims (4)

  In the mounting structure of the side groove grating in which a raising member is provided at the lower part of each of the left and right sides of the grating, and the grating is connected to the step part of the groove block opening part of the long side groove in the front and rear, A plurality of inner frames provided with vertical side plates on the left and right sides are connected to the front and rear, and left and right side plates of the inner frame are respectively suspended by L-shaped cushioning members and suspended from the sides. The side groove grating mounting structure is characterized in that the grating is installed on the inner frame with a raised member placed on the projecting surface.   2. The side groove grating mounting structure according to claim 1, wherein the grating is detachably fixed to the inner frame.   A structure with a gap between the grating and the left and right raising members is inserted, and a presser plate with bolt holes is inserted in the left and right gaps, spanned in the left and right direction, and a mounting base with nuts is placed between the left and right side plates of the inner frame. Further, it is provided at a position overlapping with the presser plate when the grating is placed, and the fixing bolt is passed through the bolt hole of the presser plate from above and screwed into the nut of the mounting base to fix the grating to the inner frame. Side groove grating mounting structure.   The structure of the inner frame is such that the lateral plate in the orthogonal direction with bolt holes is fixed to the front and rear ends of the left and right side plates so as to protrude outward from the left and right side plates. Grating mounting structure.

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