JP2011157687A - Device for covering recessed case hole of covering plate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for covering a recessed case hole of a covering plate, which hardly causes the coming-off of a covering cap attached to a recessed case hole for arranging a connecting means. <P>SOLUTION: Locking protruding edges 19a and 19b are provided at two one-side opposed rims of an operation opening 9 of the recessed case hole 8; the covering cap 20 is formed in a U-shaped cross section from an approximately rectangular top plate portion 21 capable of being fitted into the operation opening 9, and side plate portions elongated downward from both ends of the top plate portion 21; and a mutual interval between engaging claw portions 23a and 23b provided protrusively in an outward lateral direction at both the width-direction side edges of the one side plate portion 22a is set so that both the engaging claw portions 23a and 23b can be engaged in upper and lower positions with both the locking protruding edges 19a and 19b in the state of making the top plate portion 21 agree with the direction of the operation opening 9, and so that the one engaging claw portion 23b cannot be engaged in upper and lower positions in upper and lower positions with the one locking protruding edge 19b in the state of inclining the top plate portion 21 with respect to the direction of the operation opening 9. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a joint cover plate composed of a cover plate covering joints between floors of adjacent buildings and a groove cover plate composed of a groove lid covering a groove (hereinafter, these are simply referred to as “cover plates”). The present invention relates to a shield device for a concave housing hole formed in the above.

  A connecting means for mounting a side edge of a covering plate made of a grating groove cover covering the groove on a receiving frame disposed on the side edge of the groove, and connecting the end of the covering plate to the receiving frame so as to be immovable. Is known (see, for example, Patent Document 1). As shown in FIGS. 5 (A) and 5 (B), the connecting means a is provided with a screw rod d standing on a horizontal receiving edge c of a receiving frame b formed in an L-shaped cross section, while a substantially rectangular operating port. A concave housing hole f having an upper portion g is formed at the end of the cover plate e, and the screw rod d is inserted into the vertical through hole j formed in the bottom wall portion h of the concave housing f from below. The end portion of the cover plate e is connected to the receiving frame b by the tightening action of the nut k that is inserted and screwed to the protruding end side.

  Further, a shielding cap m having a U-shaped cross section is generally used for shielding the operation port g of the concave housing hole f, and the shielding cap m is fitted into the concave housing hole f from above. Thus, the operation port g of the concave housing hole f is shielded by the top plate portion n of the shielding cap m.

Japanese Utility Model Publication No. 59-156888

  By the way, in the conventional shielding cap m that shields the operation port g of the concave housing hole f, the shielding cap m formed in a U-shaped cross-section is dropped into the concave housing hole f by dropping it from above. Therefore, when a motorcycle or an automobile passes over the cover plate e, the shielding cap m may jump up due to the impact, and may jump out of the concave housing hole f and come off.

  The present invention has been made to solve such a problem, and an object of the present invention is to provide a shielding device for a concave housing hole of a cover plate in which a shielding cap is difficult to be removed.

  In the present invention, a side edge is formed at an end portion of a cover plate mounted on a receiving frame, and a concave housing hole in which a connecting means for connecting the end portion of the cover plate to the receiving frame is disposed is provided at an upper portion thereof. An operation port that shields the operation port, is opened in a substantially rectangular shape at the end of the cover plate, and is provided with a locking projection edge projecting inwardly on one opposing two edges, and the operation port Are formed in a U-shaped cross section by a substantially rectangular top plate portion that can be fitted into the top plate from the upper side, and side plate portions that extend downward from both ends of the top plate portion. A pair of engaging claws that can be engaged with both engaging protrusions of the operation port from below are provided on the edges, and the distance between the engaging claws is operated to operate the top plate. Both engagement claws can be engaged with both locking protrusions in the vertical direction with the direction of the mouth aligned, and the top plate is inclined with respect to the direction of the operation port. And a shielding cap that is set so that one engagement claw portion cannot be engaged vertically with respect to one locking projection edge. Device.

  Here, as the covering plate, a joint covering plate composed of a cover plate covering joints between floors of adjacent buildings or a groove covering plate composed of a groove cover covering a groove path can be applied.

  In the shielding device for the concave housing hole of the covering plate, a configuration is proposed in which the protruding width of one engaging claw portion is smaller than the protruding width of the other engaging claw portion. .

  In addition, the upper surface of the top plate portion of the shielding cap is provided to be substantially flush with the upper surface of the covering plate in a state where the lower ends of both side plate portions of the shielding cap are in contact with the bottom wall portion of the concave housing hole. A configuration is proposed.

  As described above, the shielding device for the concave casing hole of the covering plate according to the present invention has a substantially rectangular opening at the end of the covering plate, and has a locking protrusion that protrudes inwardly on one opposite two edges. It is formed in a U-shaped cross section by the provided operation port, a substantially rectangular top plate portion that can be fitted into the operation port from above, and side plate portions that extend downward from both ends of the top plate portion. A pair of engaging claw portions that can be engaged with both locking projection edges of the operation port from below on both side edges in the width direction of one side plate portion, With the mutual distance between the engaging claws of the shielding cap aligned with the direction of the operation port, the engaging claws can be engaged with the engaging protrusions in the vertical direction. One engagement claw portion cannot be engaged vertically with respect to at least one locking projection edge in a state where the portion is inclined with respect to the direction of the operation port. In order to shield the operation port by attaching the shielding cap to the concave housing hole, first, the top plate of the shielding cap is tilted with respect to the direction of the operation port. One engaging claw portion is inserted into the concave housing hole and engaged with one locking projection edge of the operation port. Here, in a state where the top plate portion is inclined with respect to the direction of the operation port, the other engagement claw portion provided on the side plate portion is vertically engaged with the other locking projection edge of the operation port. When the engagement is impossible, the other engagement claw portion can be inserted into the concave housing until it is positioned below the other locking projection edge. Then, with the other engaging claw portion inserted until it is positioned below the other locking projection edge, the top plate portion is rotated so as to coincide with the direction of the operation port, so that the other The engaging claw can be engaged with the other locking projection edge vertically. Next, a state in which the operation port of the concave housing is shielded by the top plate portion of the shielding cap is obtained by inserting the side plate portion side on which the engagement claw portion is not provided into the concave housing hole.

  In this shielding state, the pair of engaging claws provided on both side edges in the width direction of one side plate portion of the shielding cap can be engaged with both locking projection edges of the operation port from below. As a result, when the motorcycle or automobile jumps up to the shielding cap due to an impact when passing over the cover plate, both engaging claws are engaged with the both locking projection edges of the operation port from below. Thus, it is possible to prevent the shielding cap from being removed from the concave housing hole. Also, to remove the shielding cap, the procedure is the reverse of the above-described procedure for attaching the shielding cap, that is, with the side plate portion side where the engagement claw portion is not provided being lifted from the inside of the concave housing hole, It is necessary to rotate the shielding cap to a position where the claw portion cannot be engaged vertically with respect to one locking projection edge. Such two continuous operations are rarely caused by an impact caused by the passage of a motorcycle or a car. Since it does not occur, it is difficult to remove the shielding cap.

  In the shielding device for the concave housing hole of the covering plate, the protruding width of one engaging claw portion is provided to be smaller than the protruding width of the other engaging claw portion. The engagement claw portion that cannot be engaged vertically with respect to one locking projection edge in a state where the engagement claw portion with the smaller protrusion width is inclined with respect to the direction of the operation port. As a result, the tilt angle when the top plate is tilted with respect to the direction of the operation port can be reduced, and the amount of rotation of the top plate when the shield cap is attached / detached is reduced. Can be easily performed.

  In addition, the upper surface of the top plate portion of the shielding cap is provided to be substantially flush with the upper surface of the covering plate in a state where the lower ends of both side plate portions of the shielding cap are in contact with the bottom wall portion of the concave housing hole. In the configuration, in a state where the shielding cap is mounted in the concave housing hole, the operation port can be orderly closed in a state where the top surface of the top plate portion of the shielding cap is substantially flush with the top surface of the covering plate.

It is a longitudinal front view which shows the construction state of the coating | coated board 7 in which the side edge was mounted in the receiving frame 1. FIG. FIG. 3 is a plan view of a main part of a cover plate 7 having side edges mounted on the receiving frame 1. It is explanatory drawing of attachment / detachment operation of the shielding cap. The structure of the shielding cap 20 is shown, (A) top view, (B) is a front view, (C) is a left side view, and (D) is a cross-sectional view taken along line EE in the plan view. (A) is a top view of a conventional configuration, and (B) is a longitudinal front view of the conventional configuration.

An embodiment of the present invention will be described below with reference to the accompanying drawings.
As shown in FIGS. 1 and 2, the receiving frame 1 is disposed on the side edge 2 of one floor of the adjacent building or the side edge 2 of the groove through the joint. An edge 1a and a vertical edge 1b rising from the outer end of the horizontal receiving edge 1a are provided. A plurality of through holes 3 are formed at predetermined intervals along the longitudinal direction of the receiving frame 1 in the horizontal receiving edge 1a. . Further, screw hole members 4 made of cap nuts are fixed to the lower surfaces of the horizontal receiving edges 1a at the lower positions of the respective through holes 3. Further, a shock absorbing elastic plate 5 made of butyl rubber is disposed on the upper surface of the horizontal receiving edge 1a along the longitudinal direction of the receiving frame 1. The shock absorbing elastic plate 5 communicates with the through hole 3. A plurality of communication holes 6 are formed.

  A side edge of the cover plate 7 is mounted on the horizontal receiving edge 1 a of the receiving frame 1 via a buffer elastic plate 5. A plurality of concave housing holes 8 each having an operation port 9 opening in a substantially rectangular shape are formed on the end portion of the covering plate 7 so as to correspond to the formation positions of the respective through holes 3. Insertion holes 11 are formed in the bottom wall portion 10 that closes the lower portion of the housing hole 8 so as to coincide with the positions where the through holes 3 are formed.

  A connecting bolt 12 is inserted into the insertion hole 11 of the bottom wall portion 10 from above, and a male screw portion 12b of the connecting bolt 12 is screwed into a screw hole 4a of a screw hole member 4 provided in the receiving frame 1. ing. The end of the cover plate 7 is movably connected to the horizontal receiving edge 1a of the receiving frame 1 by the tightening action of the connecting bolt 12, and the connecting bolt 12 and the insertion hole 11 are formed. A connecting means for the cover plate 7 is constituted by the bottom wall portion 10 of the concave housing hole 8 and the screw hole member 4 fixed to the horizontal receiving edge 1 a of the receiving frame 1. Further, a frustoconical washer 14 having a cushioning material 13 on the upper surface is loosely fitted to the male screw portion 12b of the connecting bolt 12, and when the connecting bolt 12 is tightened, the connecting bolt 12 The operation head 12a and the bottom wall 10 are interposed in a pinched state.

  As shown in FIG. 2, the covering plate 7 includes a plurality of T-shaped main bars 15 arranged in parallel at predetermined intervals, a square bar-shaped cross bar 16 orthogonal to each main bar 15, and ends of the main bars 15. It is formed in a grating shape by the strip plate-like side bar 17 disposed along the portion. The concave housing hole 8 formed at the end of the cover plate 7 includes a vertical plate portion 15a of the main bar 15 positioned at the outer end of the cover plate 7 and a vertical plate portion of the main bar 15 positioned third from the outer end. The left and right side wall portions of the concave housing hole 8 are constituted by 15a, and the end portion of the main bar 15 located second from the outer end is cut out over a predetermined length and orthogonal to the cut portion. The front and rear side walls of the concave housing hole 8 are configured by a strip-shaped partition plate 18 and the side bars 17 facing the partition plate 18.

Next, the shielding device for the concave housing hole 8 according to the main part of the present invention will be described.
As shown in FIG. 1, the substantially rectangular operation port 9 opened at the upper part of the concave housing hole 8 is provided with locking projection edges 19 a and 19 b that project inwardly at two opposite edges in the left-right direction. It has been. Here, the locking projections 19 a and 19 b are constituted by horizontal plate portions 15 b and 15 b on the upper side of the pair of main bars 15 and 15 constituting the left and right side wall portions of the concave housing hole 8. When a molding material having a T-shaped cross section is not used for the main bar 15, the locking projections 19 a and 19 b can be provided by joining the band plate material to the two opposite edges of the operation port 9.

  A shielding cap 20 is detachably attached to the concave housing hole 8, and the operation port 9 is shielded by the shielding cap 20. The shielding cap 20 and the locking projection edges 19 a and 19 b of the operation port 9 constitute a shielding device for the concave housing 8.

  As shown in FIG. 4, the shielding cap 20 is formed in a substantially rectangular shape and can be fitted into the operation port 9 (see FIG. 1) from above, and both end portions in the front-rear direction of the top plate 21. Are formed in a U-shaped cross-section by a pair of side plate portions 22a, 22b extending downward from each other, and both locking projections 19a, A pair of engaging claws 23a and 23b that can be engaged with 19b from below are projected outward. Here, the mutual interval between the two engaging claws 23a and 23b is such that the top plate 21 is aligned with the direction of the operation port 9 (see FIG. 2). The claw portions 23a and 23b can be engaged with each other vertically, and in a state where the top plate portion 21 is inclined with respect to the direction of the operation port 9 (see FIG. 3), The engaging claw portion 23b is set so that it cannot be engaged vertically.

  The engaging claw portions 23a and 23b are provided so that the protruding width of one engaging claw portion 23b is smaller than the protruding width of the other engaging claw portion 23a. The engaging claw portion that cannot be engaged vertically with respect to one locking projection edge 19b in a state where the engaging claw portion 23b having a small width is inclined with respect to the direction of the operation port 9 By using as 23b, the inclination angle when the top plate portion 21 is inclined with respect to the direction of the operation port 9 can be reduced, and the amount of rotation of the top plate portion 21 when the shielding cap 20 is attached / detached is reduced. Thus, the attachment / detachment operation can be easily performed.

  Further, the upper end of the engaging claw portion 23a having a large protruding width is projected at a position higher than the upper end of the other engaging claw portion 23b, and in this state, when the shielding cap 20 is mounted (see FIG. 1), The gap between the upper end of the engaging claw portion 23a and the locking projection edge 19a is made as small as possible so that the shading cap 20 can be prevented from rattling when the cover plate 7 vibrates.

  Furthermore, the height of the top plate portion 21 of the shielding cap 20 is such that the top surface of the top plate portion 21 is in a state where the lower ends of the side plate portions 22 a and 22 b of the shielding cap 20 are in contact with the bottom wall portion 10 of the concave housing 8. Is set to be substantially flush with the upper surface of the cover plate 7, so that the top surface of the top plate portion 21 of the shield cap 20 is covered with the cover plate 7 in a state where the shield cap 20 is mounted in the concave housing hole 8. The operation port 9 can be closed in an orderly manner in a state of being substantially flush with the upper surface.

  In addition, concave grooves 24 that are recessed inward are formed on the left and right side edges of the top plate portion 21 of the shielding cap 20, and by inserting a suitable tool such as a screwdriver into the concave grooves 24, a concave housing is provided. The lifting operation of the shielding cap 20 attached to the hole 8 can be easily performed.

  In this configuration, in order to attach the shielding cap 20 to the concave housing hole 8 and shield the operation port 9, first, as shown in FIG. 3, the top plate portion 21 of the shielding cap 20 is oriented to the operation port 9. In this state, one engaging claw portion 23a provided on the side plate portion 22a is inserted into the concave housing hole 8 and engaged with one locking projection edge 19a of the operation port 9. Here, when the top plate portion 21 is inclined with respect to the direction of the operation port 9, the other engagement claw portion 23 b provided on the side plate portion 22 a is connected to the other engagement protrusion of the operation port 9. Since the edge 19b cannot be engaged vertically, the other engagement claw 23b can be inserted into the concave housing hole 8 until it is positioned below the other locking projection edge 19b. Then, with the other engagement claw portion 23b inserted until it is positioned below the other locking projection edge 19b, the top plate portion 21 is rotated so as to coincide with the direction of the operation port 9. Thereby, the other engagement claw part 23b can be made into a state which can be engaged with the other latching protrusion edge 19b up and down. Next, by inserting the side plate portion 22b side where the engaging claws 23a and 23b are not provided into the concave housing hole 8, as shown in FIG. A state of shielding the operation port 9 is obtained.

  In the state where the operation port 9 is shielded by the top plate portion 21 as described above, as shown in FIG. 1, a pair of engagements provided at both side edges in the width direction of one side plate portion 22 a of the shielding cap 20. Since the claw portions 23a, 23b can be engaged with the both locking projection edges 19a, 19b of the operation port 9 from below, the shielding cap is applied by an impact when a motorcycle or a vehicle passes over the cover plate 7. When the action of jumping up to 20 is generated, both the engaging claws 23a and 23b are engaged with the both engaging projections 19a and 19b of the operation port 9 from below, whereby the shielding cap 20 is released from the concave housing hole 8. It can be prevented from coming off. Further, in order to remove the shielding cap 20, one side of the engaging claw 23 b is engaged with the other side of the side plate 22 b where the engaging claw 23 a, 23 b is not provided. It is necessary to rotate the shielding cap 20 to a position where it is impossible to engage with the protruding edge 19b up and down, and such two continuous operations are rarely caused by an impact caused by the passage of a motorcycle or a car. The shielding cap 20 can be made difficult to come off.

  In addition, although the said Example demonstrated what the coating | coated board 7 was formed in the grating shape, this invention is not limited to the grating-shaped coating | coated board 7, For example, a flat top plate part is used. It may be a covering plate provided or a covering plate provided with a filling recess filled with a pavement material.

DESCRIPTION OF SYMBOLS 1 Receiving frame 7 Cover plate 8 Concave hole 9 Operation port 10 Bottom wall part 12 Connection bolt (connection means)
19a, 19b Locking protrusion 20 Shielding cap 21 Top plate portions 22a, 22b Side plate portions 23a, 23b

Claims (3)

The side edge is formed at the end of the cover plate that is mounted on the receiving frame, and the operation port above the concave housing hole in which the connecting means for connecting the end of the cover plate to the receiving frame is disposed is shielded To do,
An operation port that is opened in a substantially rectangular shape at the end of the cover plate and is provided with a locking protrusion that protrudes inwardly on one opposite two edges;
A substantially rectangular top plate portion that can be inserted into the operation port from above and side plate portions that extend downward from both ends of the top plate portion, respectively, are formed in a U-shaped cross section, and one of the side plate portions A pair of engaging claws that can be engaged with both engaging protrusions of the operation port from below are provided on both side edges in the width direction so as to protrude outward, and the mutual interval between the engaging claws is determined by the top plate. Both engagement claws can be engaged vertically with respect to both locking projections with the part aligned with the direction of the operation port, and the top plate is inclined with respect to the direction of the operation port. A shielding cap configured to shield at least one of the engaging protrusions so that one of the engaging claws cannot be engaged vertically; apparatus.   2. The shielding device for a concave casing hole of a cover plate according to claim 1, wherein the protruding width of one of the engaging claws is smaller than the protruding width of the other engaging claw. .   The upper surface of the top plate portion of the shielding cap is substantially flush with the upper surface of the covering plate in a state where the lower ends of both side plate portions of the shielding cap are in contact with the bottom wall portion of the concave housing hole. 3. The shielding device for a concave housing hole of a covering plate according to claim 1 or 2.

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