JP4351380B2 - Grating mounting port and filling for the mounting port - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mounting opening for filling of Heidelberg grating material used to cap the gutter like rainwater.
[0002]
[Prior art]
Grating is a frame that surrounds a set of grids with a main member that is a vertical beam and an auxiliary member that is a horizontal beam surrounded by a frame plate. This guarantees the drainage of rainwater while allowing passenger cars to pass.
Incidentally, there are gratings that are fixed to the side grooves to be placed. The main member of the grating is cut, an auxiliary plate is applied to the cut surface, and an opening O is formed by the auxiliary plate, the main member, and a frame plate surrounding the grating (see FIG. 1). A bolt hole for installation and fixing is provided in the base plate viewed through the opening, and the grating is fixed to the side groove using the bolt hole. The bolt hole of the base plate is passed through the bolt shaft protruding from the receiving frame fixed to the side groove, and then screwed with a nut. When it is necessary to remove the grating during periodic inspection or repair, the nut screwed on the bolt has been removed.
[0003]
[Problems to be solved by the invention]
However, the opening formed in the grating has a problem of giving a shock to the occupant when a tire enters during traveling of the vehicle, and a problem that a pedestrian or the like crawls at the opening.
For these reasons, conventionally, a metal cover (Japanese Patent Laid-Open No. 7-305401) for closing the opening, a rubber cap 8 shown in FIG. 6 and the like have been proposed. The metal cover is intended to be fixed to the inner peripheral wall of the opening by the elastic force of the clip, and the cap 8 is intended to cover the opening by the elasticity of rubber.
However, when a heavy vehicle or the like travels frequently, an external force is applied from various directions, both of which may come off the opening, and it is difficult to maintain a state where the opening is completely closed. In the unlikely event that the vehicle is off, it may hit the traveling vehicle and cause an accident. It was especially dangerous when metal products were removed.
[0004]
The present invention solves the above-mentioned problems, and ensures that the opening of the mounting opening is securely filled so that it does not come off in any vehicle traveling, and the vehicle travels or falls into the pedestrian opening. to eliminate, further an object to provide a mounting opening for filling of Heidelberg grating material easily accommodates when removing the grating with periodic inspection or the like.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the gist of the invention described in claim 1 is that a mass having a plan view shape larger than an opening of a mounting opening in which a part of the grating surface is opened in order to install and fix the grating. The lump is formed of an elastic body, and further provided with a small hole for extraction from the top surface to the bottom surface, and press-fitted into the mounting port so as to be accommodated in the mounting port. It is in the filling for the grating mounting opening. Here, the “grating surface” refers to the upper surface of the grating. “A lump having a plan view shape larger than the opening of the attachment port” means a lump having a size that at least one side of the lump shape is larger than the opening of the attachment port and cannot be stored in the attachment port unless press-fitted. If it is enough.
The gist of the invention described in claim 2 is that the shape in plan view is larger than the upper surface opening of the mounting port in which a part of the grating surface is opened in order to install and fix the grating, and the height is the upper surface of the mounting port. It is formed of an elastic body consisting of a columnar body that is larger than one side of the opening, and further provided with a small hole for extraction from the top surface to the bottom surface, so that the top surface is substantially flush with the grating surface by press-fitting into the mounting opening. In this case, the grating is installed in the mounting opening. Here, “a columnar body whose height is larger than one side of the upper surface opening of the mounting opening” refers to a columnar body whose height is larger than the length of one side of the smaller upper surface opening of the mounting opening.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Described in detail below mounting opening for filling of the grating material of the present invention. Figures 1-5, mounting opening for filling of the engagement Heidelberg grating material in the present invention (hereinafter, simply referred to as "cold".) In one embodiment of Figure 1 is the overall perspective view, FIG. 2 in FIG. 1 FIG. 3 is a partial cross-sectional view, FIG. 3 is a vertical cross-sectional view taken along line AA in FIG. 2, FIG. 4 is an explanatory cross-sectional view showing a pattern for removing the packing attached to the attachment port, and FIG. It is.
[0008]
(1) The mounting port mounting port 25 is a grating installation fixing opening hole formed in the grating peripheral wall. The grating 2 has a main plate 20 and a belt-like auxiliary member 21 standing in the width direction to form a lattice shape to create a rainwater drainage gap. In the metal grating 2 of the present invention in which the grating 2 is installed and fixed, A mounting opening 25 having an opening larger than the gap is formed. Here, I-shaped steel main material 20a is arranged as a main member 20 at a predetermined pitch, and auxiliary bars 20b made of strips are arranged at a constant pitch between the main materials. And it is the grating 2 which cross | intersected these and the auxiliary member 21 in the grid | lattice form, and formed the clearance gap for rainwater drainage, The attachment port 25 which has an opening with a planar view larger than this clearance gap width is formed. One or a plurality of auxiliary bars 20b of the grating 2 are cut and an auxiliary plate 24 is applied to the cut surface, and the auxiliary plate 24, the main member 20 (auxiliary bar 20b), and a frame plate (also referred to as an end bar) 22 surrounding the grating 2 are surrounded. Then, an opening is formed, and a mounting hole 25 is provided in which a bolt hole 231 for installation and fixing is provided in the base plate 23 of the grating 2 looking into the opening. In the present embodiment, three auxiliary bars 20b are cut, and the auxiliary plate 24 is applied to the cut surface of the auxiliary bar to form a square frame attachment port 25. When the bolt shaft portion 51 a protruding from the receiving frame 3 fixed on the step u ₁ on both side edges of the side groove u is inserted into the bolt hole 231 and the grating 2 is placed in the side groove u, the grating 2 covers the side groove u. It will be in a state (FIGS. 3 and 4). Reference numeral 4 denotes an anchor.
[0009]
The mounting opening 25 has an opening having a rectangular shape in plan view, and the size of the opening is appropriately selected as long as the nut 52 can be attached to and detached from the bolt 51. Here, the upper surface opening O of the attachment port 25 has a shape close to a square as shown in FIG.
[0010]
The mounting opening 25 includes a vertical plate 241 on which the auxiliary plate 24 hangs down from the upper surface of the grating, and a horizontal plate 242 that projects horizontally from the lower end of the vertical plate 241 toward the opposing frame plate 22. A cutout portion 243 formed by cutting out an upper region of the bolt hole 231 in an arc shape at a portion 242 and a small protrusion 26 protruding toward the opening O on the vertical plate 241 are provided.
[0011]
The vertical plate 241 is formed of a rectangular plate, and the upper surface thereof is matched with the upper surface of the grating. Then, the vertical length of the vertical plate 241 is determined according to the height Z of the filling 1 (there is also a reverse case in which the packing height Z is determined according to the vertical length of the vertical plate 241), but in this embodiment. 2 and 3, the vertical length of the vertical plate 241 is set longer than the length of one side of the upper surface opening O. This is to prevent the filling 1 stored and set in the mounting opening 25 from being removed. The vertical length of the vertical plate 241 is set so that the lower surface of the vertical plate 241 is slightly higher than the bolt tip 51a protruding from the base plate 23 when the side groove u is covered with the grating 2 (FIG. 3).
[0012]
The horizontal plate 242 formed of a plate piece projects horizontally from the lower end of the vertical plate 241 toward the frame plate 22 facing the vertical plate 241, and the notch 243 is formed in the horizontal plate 242.
The notch 243 has a front edge located on the side of the frame plate 22 of the horizontal plate 242 cut out in an arc shape so that the nut 52 can be attached to and detached from the bolt 51. For example, a notch 243 that can tighten or loosen the nut 52 using the tool 7 having the nut fitting socket 71 as shown in FIG. 4 is formed.
[0013]
The small protrusion 26 is a round button-shaped metal raised body formed on the surface of the vertical plate 241 facing the frame plate 22, and here, the small protrusion 26 is welded and fixed to substantially the center of the vertical plate 241 surface facing the opening. ing. The raised height h of the small protrusions 26 is appropriately determined depending on the dimensions of the filling 1 and its elastic compression characteristics. The raised height h of the small protrusions 26 of this embodiment is about 2 mm to 5 mm. The small protrusions 26 may be formed on the plate surface of the main member 20 or the auxiliary plate 24 facing the opening in addition to the vertical plate 241. However, in terms of construction, it is easy to weld and fix to the vertical plate 241 added by post-processing, and this embodiment also adopts this.
[0014]
(2) The filling body 1 is packed in the mounting opening 25 for fixing and fixing the grating 25 in which a part of the grating surface is opened in order to install and fix the grating 2 as described above and above the horizontal plate 242 of the mounting opening 25. The rectangular column opening space S is filled.
The filling body 1 is formed of a lump body having a plan view shape larger than the opening of the attachment port 25 in which a part of the grating surface is opened in order to install and fix the grating 2. Here, when the filling body 1 is stored in the mounting opening 25, the filling body 1 is a columnar body having a shape substantially the same as that of the upper surface opening O of the mounting opening 25 so that there is not much space around the filling body 1. It is a square pillar. The planar view shape of the filling body 1 of the present embodiment is a quadrangle that is slightly larger than the quadrangle of the upper surface opening O of the attachment port 25. For more information, greater plan view longitudinal length X of a cold 1 than the longitudinal length X ₁ of the upper opening O of the mounting hole 25, and the lateral length viewed horizontal length of the cold 1 than Y ₁ of the upper opening O of the mounting opening 25 Y is set small. This is also the filling 1 having a plan view shape larger than the opening of the attachment opening 25. In this embodiment, Y <Y ₁ is a natural rubber solid (solid body) used as the filler 1 and is elastically deformed and press-fitted into the mounting opening 25. the extending in the lateral length Y in compressive deformation of the minute in order to be absorbed by the clearance formed by Y <Y _1.
In particular, the height Z of the filling body 1 is made larger than one side of the upper surface opening O of the mounting opening 25 and substantially matches the height of the rectangular column opening space S above the horizontal plate 242 of the mounting opening 25. ing. The reason why the height of the mounting opening 25 is made larger than one side of the upper surface opening O is to lift the padding 1 stored in the mounting port 25 to be higher than the length of one side of the upper surface opening O. This is because the structure is more difficult to remove even when an external force of traveling is applied. Further, even if a heavy vehicle or the like travels and the padding 1 is about to be detached from the mounting opening 25 due to deformation, if there is a padding height Z, the lower end portion of the padding 1 strongly hits the inner peripheral wall of the mounting opening 25 accordingly. This is because, due to this reaction force, the packing 1 and the mounting opening 25 are strongly integrated, and are difficult to come off. In the drawing, the filling 1 housed in the mounting opening 25 is shown with a space for convenience so that it can be distinguished from the mounting opening 25, but the two are naturally in close contact with each other when they are press-fitted.
[0015]
The filling body 1 is made of an elastic body such as rubber or sponge, and here, the entire square column is made of a solid elastic body made of natural rubber (NR) as described above. And it is accommodated in the attachment port 25 by press-fitting into the attachment port 25.
When the filling body 1 is accommodated in the opening space S related to the mounting opening 25 by press-fitting using the elastic deformation characteristics of the elastic body, the upper surface of the filling body 1 is substantially flush with the upper surface of the grating. The top surface of the filling 1 is substantially flush with the top surface of the grating. If there is a flange portion 81 that protrudes above the top surface of the grating, such as the cap 8, it can be easily removed, but vibrations may occur when the vehicle travels. This is because an external force is applied to the projecting flange portion 81 from the lateral direction or the like, and the cap 8 is easily lifted. However, in the product of the present invention, such a situation does not occur because there is no projecting portion.
Here, as an elastic body used for the filling body 1, it is of course possible to use synthetic rubber such as isoprene-based rubber and butadiene-based rubber that can be elastically deformed in addition to the natural rubber. Furthermore, a foam having a larger elastic deformation than solid rubber (solid rubber) such as rubber foam or plastic foam can be used. In the case where a foam is used for the filler 1, there is no inconvenience even if X and X are X> X ₁ and Y> Y ₁ .
[0016]
When the filling body 1 is press-fitted into the mounting opening 25, the rectangular column side wall of the filling body 1 is pressed into contact with the plate body (main member 20, vertical plate 241, auxiliary plate 24) forming the attachment opening 25 by the press-fitting, and the reaction force thereof. , The filling 1 is stored and fixed in the mounting opening 25. Further, the small protrusion 26 deforms the filling body 1 made of an elastic body by the formation of the small protrusion 26, and protrudes into the inside of the filling body 1 to more securely lock the filling body 1. For this reason, unless a significant external force is applied, the filling 1 once stored in the mounting opening 25 cannot be removed.
[0017]
Furthermore, a small hole 10 for extraction is formed in the filling body 1 from the upper surface to the bottom surface. In the present embodiment, a small hole 10 that penetrates from the top surface to the bottom surface of the filling body 1, that is, a small hole, may be a small hole 10 that does not reach the bottom surface. The small hole 10 is used when the filling 1 stored in the mounting opening 25 is extracted. Once the filling body 1 is housed in the mounting opening 25 by press fitting, it becomes difficult to remove and at the same time it is difficult to remove it. However, if the small hole 10 is formed, the filling body 1 can be easily extracted. In the present invention, for example, by making the extractor 6 as shown in FIG. The extraction tool 6 has a T shape, and an extraction shaft 62 hangs down from a handle portion 61 grasped by a hand. As the extraction shaft 62, a steel bar for reinforced concrete having raised portions 621 at a predetermined pitch is used. When the diameter of the extraction shaft 62 (here about 9 mmφ) is set slightly larger than the small hole 10 (here about 6 mmφ) and the extraction shaft 62 is inserted into the small hole 10, the filling 1 is made of an elastic body. The diameter of the small hole 10 is increased and the extraction shaft 62 is inserted into the small hole 10. Further, a large number of raised portions 621 of the extraction shaft 62 press against the inner peripheral wall of the small hole 10, and the repulsive force causes the extraction shaft 62 to be integrated with the packing 1, so that the handle is inserted after the extraction shaft 62 is inserted into the small hole 10. If the portion 61 is held and pulled up as it is, the filling 1 can be easily pulled up. Even if the filling body 1 is press-fitted and accommodated in the mounting opening 25 and further provided with a small protrusion 26, the fitting resistance between the extraction shaft 62 and the inner peripheral wall of the small hole 10 can be made larger than this press-fit resistance. Therefore, the filling body 1 can be removed.
[0018]
In the present embodiment, the entire filling body 1 is made of the same solid rubber material as shown in FIG. 5 (a), but the filling body 1 can be a foamed body (b in FIG. 5) as described above. The main part 11 located at the upper part can be made of an elastic material, and the lower part 12 can be made of another material (FIG. 5C). When the lower part 12 of the filling body 1 is not an elastic body, the planar view shape of the lower part 12 in FIG. In FIG. 5C, the shape of the upper surface opening O of the mounting port 25 in which the main part 11 (part) on the grating surface is opened in order to install and fix the grating 2 is substantially the same shape, and the height is The mounting opening 25 is made of a columnar body that is larger than one side of the upper surface opening O, and a small hole 10 for extraction is formed from the upper surface to the bottom surface, and at least the main portion 11 (part) is formed of an elastic body. By press-fitting a portion formed of the elastic body into the mounting opening 25, the filling body 1 is accommodated in the mounting opening 25 so that the upper surface is substantially flush with the grating surface.
Further, even if the entire filling body 1 is made of the same solid rubber material, a side end face of the columnar body of the filling body 1 that is rounded as shown in FIG. .
[0019]
The mounting port 25 of the grating 2 and the mounting member 1 for the mounting port of the grating 2 configured as described above are filled with the filler 1 even if the mounting port 25 is provided in the grating 2. There will be no impact even if the car runs, and pedestrians will not hit. And since the filling body 1 is flush | level with the grating upper surface, there is no catch by vehicle driving | running | working or walking. In addition, the structure is less likely to lift than the cap 8 or the like that is easily caught.
Making the upper surface of the filling 1 flush with the upper surface of the grating can be easily realized by providing the horizontal plate 242 so that the height Z of the filling matches the height of the opening space S. If the filler 1 is simply embedded in the mounting opening 25, it stops when it hits the horizontal plate 242, and the upper surface of the filler 1 coincides with the upper surface of the grating. The horizontal plate 242 is likely to be in the way of attaching and removing the fixing nut 52 of the grating 2, but since the notch 243 is formed in the horizontal plate 242, the socket 71 of the tool 7 is easily fitted to the nut 52. Yes. There will be no hindrance to removal of grating 2 during regular inspections.
The filling body 1 can be manufactured at low cost by simply cutting a commercially available rubber prismatic material into a predetermined length and providing a small hole 10.
[0020]
In the conventional cap 8 or the like, the cap 8 and the mounting opening 25 are fixed by the side wall 83. When an external force is applied, the side wall 83 is inside the hollow portion 85 due to the presence of the hollow portion 85 surrounded by the side wall. However, the cap 1 of the present invention has a structure that is not easily removed autonomously. That is, the filling body 1 is a solid lump body (in this embodiment, a quadrangular prism), and even if an external force is applied and a portion corresponding to the side wall 83 tries to bend inward, it is bent because it is solid. Is blocked. Even if it is bent a little further, the entire filling body 1 is made of an elastic body, so that the reaction force acts greatly, so that the filling body 1 cannot be pulled out from the mounting opening 25 after all.
In particular, when the filling body 1 is formed of an elastic body made of a columnar body whose height is larger than one side of the upper surface opening O of the attachment opening 25, the filling body 1 housed in the attachment opening 25 is more difficult to come off. In the cap 8 or the like, the height of the side wall 83 that fits into the mounting opening 25 is small, so that it is easy to come out from the mounting opening 25. However, in the columnar body 1 that is larger than one side of the top opening O, the same as one side of the top opening O If it is not lifted straight up to the length, it cannot be extracted, and it is almost impossible to remove it by an external force or the like caused by running the vehicle.
[0021]
In addition, even if the packing 1 is lifted by an external force such as a vehicle running, the subsequent vehicle 1 is treaded and embedded in the mounting opening 25 like a rattling. The body 1 is also very good to be housed in the original mounting opening 25. The opening of the mounting opening 25 is reliably filled and removed over a long period of time. Even if the padding 1 comes off on the road by an external force such as traveling of the vehicle, the padding 1 is made of an elastic body such as rubber, so there is little danger unlike metal parts.
Moreover, since the filling body 1 is accommodated in the form embedded in the attachment port 25, it is difficult to remove it by mischief or the like. On the other hand, when it is necessary to remove the filling 1 from the mounting opening 25 in order to remove the grating 2 during periodic inspections, it can be easily removed using the dedicated jig 6 shown in FIG. The dedicated jig 6 does not require a special structure, and has an advantage that it can be manufactured at low cost using commercially available materials.
[0022]
In addition, in this invention, it is not restricted to what is shown to the said embodiment, According to the objective and a use, it can change variously in the range of this invention. The shape, size, number, material, and the like of the filling body 1 and the mounting opening 25 can be appropriately selected according to the application.
[0023]
【The invention's effect】
As described above, the mounting hole for filling of grating material of the present invention is reliably fill the opening of the mounting hole so as not to deviate to an external force from all directions by the vehicle traveling, vehicle traveling improve safety In addition, it is extremely beneficial because it can eliminate the falling into the opening of pedestrians and pedestrians, while being able to easily cope with the removal of the grating in periodic inspections.
[Brief description of the drawings]
FIG. 1 is an overall perspective view of one embodiment of a grating attachment port and a grating attachment member according to the present invention.
FIG. 2 is a partial plan view of FIG. 1;
3 is a vertical sectional view taken along line AA in FIG. 2;
FIG. 4 is an explanatory cross-sectional view showing a pattern of removing the filler attached to the attachment port.
FIG. 5 is a perspective view of another embodiment of the filling body.
FIG. 6 is an explanatory perspective view of the prior art.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Packing body 10 Small hole 2 Grating 20 Main member 21 Auxiliary member 22 Frame plate 23 Base plate 231 Bolt hole 24 Auxiliary plate 241 Vertical plate 242 Horizontal plate 243 Notch 25 Mounting port 26 Small protrusion O Upper surface opening (opening)

Claims (2)

  It consists of a lump that has a plan view shape that is larger than the opening of the mounting opening where a part of the grating surface is opened in order to install and fix the grating. The lump is formed of an elastic body, and further from the top to the bottom A fitting for a mounting opening of a grating, which is provided with a small hole for pulling out and is accommodated in the mounting opening by being press-fitted into the mounting opening.   Elasticity consisting of a columnar body whose plan view shape is larger than the upper surface opening of the mounting opening in which a part of the grating surface is opened to install and fix the grating, and whose height is larger than one side of the upper opening of the mounting opening. A small hole for pulling out from the upper surface to the bottom surface, and press-fitting into the mounting port so that the upper surface is substantially flush with the grating surface and stored in the mounting port. The characteristic filling for the mounting hole of the grating.

Images