JP3017235U - Grating - Google Patents

Abstract

(57) [Summary] [Purpose] To provide grating that prevents rattling and coming off. [Structure] A grid-like rib is formed on the back surface of the grating 1, and a height dimension at a central portion of the rib is increased to form an inner fitting portion 5 to be fitted in a drain groove. Side surface 6 of inner fitting portion 5
Further, the elastic fitting piece 8 whose elasticity is ensured by the slits 7, 7 is formed, and the elastic fitting piece 8 is formed with the pressure contact portion 9 which is brought into pressure contact with the inner wall surface of the drain groove. The inner fitting portion 5 on one end side of the grating 1 is formed with concave portions 10 and 10 that recede inward from both corners to form a convex portion 11 on the inner fitting portion 5.
Protrusions 13 and 13 are formed on 12. On the other end side of the grating 1, an elastic deformation connecting portion 14 that fits into the recess 10 is provided in a protruding manner, and a vertical groove 16 having a tapered opening edge 17 is provided on the inner surface 15. In the grating 1 attached to the drainage groove, the pressure contact portion 9 of the elastic fitting piece 8 is pressed against the inner wall surface of the drainage groove, and rattling and disengagement are prevented.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a grating that closes an opening of a drainage channel for flowing sewage, road drainage, and the like.

[0002]

[Prior art]

 Conventionally, the grating is attached to a drainage channel for flowing sewage or road drainage, and closes the opening of the drainage channel. As shown in FIG. A plurality of drainage ports 52 are provided (see Japanese Utility Model Publication No. 61-151111). At the four corners of the bottom surface of the grating 51, holes 53, ... are provided that are reduced in diameter toward the upper surface side, and both side faces 54, 54 in the longitudinal direction communicate with the holes 53, 53 described above. Grooves 55 to be formed are formed.

On the other hand, as shown in FIG. 8, on the grating 51, a pair of protrusions 56, 56 that can be fitted into the holes 53 are continuously provided at a connecting portion 57 that can be inserted into the groove 55. When connecting a plurality of gratings 51, the connecting member 58 is inserted into the adjacent holes 53, 53 of both gratings 51, 51, and both gratings 51, 51 are attached. It is configured so that 51 can be connected.

[0004]

[Problems to be solved by the device]

 However, since the gratings 51, ... Are fitted and fitted in the drainage groove, when an automobile or the like passes over the gratings 51, ..., the rattling noise is generated by the impact. Further, since the gratings 51, ... Are connected by inserting the connecting members 58 into the holes 53, 53 at the bottom, water overflows from the drainage channel due to heavy rain, etc. Due to this, when the gratings 51, ... Float, the coupling of the gratings 51, ..

The present invention has been made in view of such conventional problems, and provides a grating that prevents rattling in the drain and prevents accidental disengagement from the drain. The purpose is to do.

[0006]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, according to the present invention of claim 1, in a grating which is fitted in and attached to a drainage groove, an elastic fitting piece facing an inner wall surface of the drainage groove is formed, and The elastic fitting piece was formed with a pressure-contacting portion that pressure-contacted the inner wall surface.

Further, in the invention of claim 2, in the grating having the inner fitting portion which is fitted into the drainage groove, the grating is located at one end side in the arrangement direction when a plurality of the fitting portions are arranged side by side in the drainage groove. The inner fitting portion is provided with a concave portion that recedes inward from both corners on the bottom surface side to form a convex portion on the inner fitting portion, and on both sides of the convex portion, a protruding portion and / or a vertical groove that opens downward. On the other end side in the arrangement direction, a pair of elastically deformable coupling portions that project into the recesses are provided in a projecting manner on the opposite sides of the two elastically deformable coupling portions. Second engaging portions each of which is formed by a vertical groove and / or a projecting portion that opens downward and which can be engaged with the first engaging portion are respectively provided, and an opening edge of the vertical groove is formed in a tapered shape.

Further, in the invention of claim 3, an elastic fitting piece facing the inner wall surface of the drainage groove is formed, and a press contact portion which is pressed against the inner wall surface is formed on the elastic fitting piece. .

[0009]

[Action]

 In the grating according to the first aspect, the pressure contact portion formed on the elastic fitting piece is pressed against the inner wall surface of the drain groove while being attached to the drain groove, and the grating is pressed from the side portion. As a result, even if an external force is applied to the grating, rattling and deviation of the grating are prevented.

Further, in the grating according to the second aspect, when the first grating and the second grating are arranged side by side in the drain groove, first, the inner fitting portion of the first grating is placed in the drain groove. Install by fitting it inside. Then, the recesses provided at both corners of the bottom surface of the second grating are aligned with the pair of elastically deformable connecting portions of the first grating, and the second grating is pushed downward to make the second recess in the recess of the second grating. Fit the elastic deformation connection part of grating 1 Then, the first engaging portions formed by both protrusions and / or both vertical grooves, which are provided on both sides of the convex portion of the second grating formed by the concave portions at both corners of the bottom surface, have the elasticity of the first grating. Both gratings are connected by engaging with a second engaging portion formed on the surface of the deformable connecting portion and formed of a vertical groove and / or a protruding portion.

Further, since the elastically deformed connecting portion is fitted in the recess formed in the bottom surface of the second grating, the upward movement of the connected first grating is restricted, and the second grating is also connected. Because the second engaging portion of the elastically deformable connecting portion is engaged with the first engaging portion provided on the first grating, that is, the vertical groove opening downward and the protruding portion are Upward movement is restricted due to the engagement. As a result, even when an external force directed upward is applied to the connected gratings, the engagement between both gratings is not disengaged, and the strongly connected state is maintained. Then, the two connected gratings have a larger weight and a larger contact surface area in the drainage gutter as compared with the case of a single body.

On the other hand, when removing the second grating, the free end of the second grating is lifted. At this time, the opening edge of the vertical groove with which the protruding portion engages is formed in a taper shape, and since the vertical groove is opened downward, the protruding portion has a tapered opening edge. At the same time as being guided, the opening edge is elastically deformed, so that the engagement is smoothly released.

Further, in the configuration of claim 3, the actions of claim 1 and claim 2 are obtained as a whole.

[0014]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the synthetic resin grating 1 according to the present embodiment is mounted by being fitted in a drainage groove and has a rectangular surface 2 extending in the extending direction of the drainage groove. are doing. The surface 2 is provided with a plurality of drainage ports 3, ... Extending in the width direction from the long side toward the center at equal intervals. As shown in FIG. 2, ribs 4 standing upright in a grid pattern are provided on the entire back surface, and the height of the ribs 4 is higher than that of the ribs 4 on the side in the central portion. An inner fitting portion 5 that is fitted in the groove is formed. That is, the ribs 4 are configured to reinforce the grating 1 while reducing the weight of the grating 1 and to allow the drainage flowing from the drainage ports 3, ... To pass through.

As shown in FIGS. 3 and 4, on both side surfaces 6 and 6 (one shown) of the inner fitting portion 5, elastic fitting pieces 8 whose elasticity is ensured by a pair of slits 7 and 7, respectively. Are provided at four locations at equal intervals, and these E-shaped elastic fittings 8, ... Are pressed into contact with the inner wall surface of the drainage groove facing when attached to the drainage groove. .. are formed so as to open downward.

Further, as shown in FIG. 5, recesses 10 and 10 that are recessed inward from both corners of the inner fitting portion 5 are formed on one end side in the longitudinal direction of the grating 1, and the inner fitting portion is formed. A convex portion 11 (see FIG. 2) is formed in the portion 5 by the both concave portions 10, 10. On both side walls 12, 12 of the convex portion 11 in the width direction, hemispherical protrusions 13, 13 are formed as first engaging portions protruding outward.

On the other hand, on the other end side of the grating 1, as shown in FIGS. 1 to 3, elastically deformable connecting portions 14 and 14 that are paired with the recesses 10 and 10 are provided in a protruding manner. As shown in FIG. 6, the inner surfaces 15 and 15 of the elastically deformable connecting portions 14 and 14 facing each other are provided with second engaging portions which are open toward the bottom surface so that the projecting portions 13 and 13 can engage with each other. Certain vertical grooves 16 and 16 are provided respectively, and the opening edges 17 and 17 of both vertical grooves 16 and 16 are formed in a taper shape whose diameter decreases from the inner surfaces 15 and 15 toward the inner side.

In the grating 1 having the above-mentioned structure, when the grating 1 is attached alone to the drainage groove, the pressure contact portions 9, ... Formed on the elastic fitting pieces 8 ,. The grating 1 is pressed against the inner wall surface of the drainage channel, and the grating 1 is pressed by the side surfaces 6 and 6 to prevent rattling and displacement. Therefore, no rattling sound is generated even when an automobile or the like passes over the grating 1. Further, even if water overflows from the drain due to heavy rain, the momentum of the water does not cause the grating 1 to flow out of the drain.

When arranging the gratings 1 side by side, first, the first grating 1 is fitted into the drainage groove and attached. Then, the recesses 10 and 10 formed at both corners of the inner fitting portion 5 of the second grating 1 are aligned with the pair of elastically deformable connecting portions 14 and 14 of the first grating 1, and the second By pressing the grating 1 from above, the elastically deformable connecting portions 14 and 14 of the first grating 1 are fitted into the recesses 10 and 10 of the second grating 1. Then, the protrusions 13 and 13 formed on the both side walls 12 and 12 of the convex portion 11 of the second grating are attached to the inner surfaces 15 and 15 of the elastic deformation coupling portions 14 and 14 of the first grating 1, respectively. It engages with the vertical grooves 16 and 16 provided, and both gratings 1 and 1 are connected.

Since the elastically deformed connecting portions 14 and 14 are fitted in the recesses 10 and 10 formed on the bottom surface of the second grating 1, the first grating 1 connected to the first grating 1 is restricted in upward movement. In addition, the second grating 1 is formed on the upper side because the protrusions 13, 13 of the elastically deformable coupling portions 14, 14 are engaged with the vertical grooves 16, 16 opening downward of the first grating 1. Movement is regulated. As a result, even when an external force directed upward is applied to the connected gratings 1, the gratings 1 and 1 do not separate from each other, and the strongly connected state is maintained. The two gratings 1, 1 connected to each other have a larger weight and a larger contact area on the inner wall surface of the drainage groove as compared with the single grating 1. In addition, in both gratings 1, as in the case described above, the pressure contact portions 9, ... Formed on the elastic fitting pieces 8, ... Are pressed against the inner wall surface of the drainage groove, and the grating 1 has both side surfaces. It is held down by 6, 6. Therefore, rattling in the drainage groove is further suppressed, and the grating 1 does not come off due to water overflow.

On the other hand, when removing the second grating 1, the free end of the second grating 1 is lifted. At this time, the opening edges 17, 17 of the vertical grooves 16, 16 with which the projections 13, 13 formed in the concave portions 11, 11 engage are formed in a tapered shape, and the vertical grooves are Since 16 and 16 are opened downward, the projecting portions 13 and 13 are guided by the tapered opening edges 17 and 17, and at the same time, the opening edges 17 and 17 are elastically deformed to engage with each other. Is released smoothly. Therefore, when the second grating 1 is removed, even if a forcible removal work is performed, the connecting portion will not be damaged.

In the present embodiment, the inner surface 16, 16 of the elastically deformable connecting portion 14, 14 is provided with vertical grooves 16 and 16 as second engaging portions that open downward, and the convex shape The protrusions 13 and 13 which are the first engaging portions are provided on both side walls 12 and 12 of the portion 11, and the vertical grooves 16 and 16 are engaged with the protrusions 13 and 13. Protrusions are provided on the inner surfaces 16 and 16 of the parts 14 and 14, and vertical grooves that open downward are provided on both side walls 12 and 12 of the convex part 11 and are formed on the elastic deformation connection parts 14 and 14. The protruding portion and the vertical groove formed in the convex portion 11 may be engaged with each other.

[0023]

[Effect of device]

 As described above, in the grating according to the first aspect, since the pressure contact portion formed on the elastic fitting piece is pressure contacted with the inner wall surface of the drainage groove, it is possible to prevent rattling and deviation of the grating. No rattling sound is generated even when an automobile or the like passes through this grating. Even when water overflows from the drain due to heavy rain, the momentum of the water does not cause the grating to flow out of the drain.

In addition, in the grating according to the second aspect, the plurality of gratings can be firmly connected to each other, and the plurality of connected gratings have an increased weight as compared with a single grating, so that the inside of the drainage ditch is increased. The contact area on the wall surface increases. As a result, rattling in the drainage ditches is reduced, and when the water overflows, even if some upward force is applied to part of the grating, it is possible to prevent the grating from coming off.

On the other hand, since the engagement between the protrusion and the vertical groove having the tapered opening edge can be smoothly performed, the joined gratings can be easily removed from each other. When removing the grating, the connecting part will not be damaged even if a forcible removal work is performed.

Furthermore, with the structure of claim 3, it is possible to obtain the effects of claims 1 and 2 as a whole, and it is possible to prevent rattling in the drain groove and accidental detachment from the drain groove. In addition, even if a forcible removal work is performed when removing from the drain after connecting and using, grating can be achieved without damaging the connection part.

[Brief description of drawings]

FIG. 1 is a plan view of a grating showing an embodiment of the present invention.

FIG. 2 is a bottom view of the embodiment.

FIG. 3 is a right side view of the same embodiment.

4 is a cross-sectional view taken along the line AA of FIG.

5 is a view on arrow B of FIG.

6 is an enlarged view of a main part of a cross section taken along the line CC of FIG.

FIG. 7 is a bottom view showing a conventional grating.

FIG. 8 is a perspective view showing the conventional connecting member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Grating 5 Internal fitting part 8 Elastic deformation fitting piece 9 Pressure contact part 10 Recessed part 11 Convex part 13 Projection part (1st engaging part) 14 Elastic deformation connection part 16 Vertical groove (2nd engaging part) 17 Opening Department

Claims (3)

[Scope of utility model registration request] 1. In a grating which is fitted in a drainage groove and attached, an elastic fitting piece facing an inner wall surface of the drainage groove is formed, and the elastic fitting piece is press-contacted to the inner wall surface. Grating characterized by forming a part. 2. A grating having an inner fitting portion that is fitted into the drain groove, wherein the inner fitting portion located on one end side in the arrangement direction when a plurality of the inner fitting portions are arranged side by side in the drain groove is inside from both corners. To form a convex portion on the inner fitting portion by providing a recessed portion that recedes in the bottom surface side,
On both sides of this convex portion, a first engaging portion consisting of a protruding portion and / or a vertical groove that opens downward is formed, while a pair of elastic deformations matching the concave portion are formed on the other end side in the arrangement direction. A connecting portion is provided so as to project, and a second engaging portion formed of a vertical groove / or a projecting portion that opens downward and is engageable with the first engaging portion on opposite surfaces of both elastic deformation connecting portions. A grating, each of which is provided and the opening edge of the vertical groove is formed in a tapered shape. 3. An elastic fitting piece facing an inner wall surface of the drainage groove is formed, and a press contact portion which is brought into pressure contact with the inner wall surface is formed on the elastic fitting piece. The described grating.