JP4225277B2 - Rainproof entry line cover - Google Patents

Description

  The present invention relates to a rainproof entry cover that is attached to an outer wall of a building and is used to enter a wire such as an antenna wire or a telephone wire of a television from the outside to the inside.

  Conventionally, there has been proposed a rainproof cover that is attached to a construction surface on the outdoor side and provided with a bushing for passing an electric wire between the outdoor and indoor (see, for example, Patent Document 1).

  Moreover, as such a rainproof line entry cover, what has a structure as shown in FIG. 6 and FIG. 7 is proposed conventionally. In the following description, unless otherwise specified, the vertical and horizontal directions are defined in the direction (construction state) shown in FIG. 7A, and the front of FIG. Therefore, the right end in FIG. 7B is the rear end. In FIG. 7B, a fixing piece 20 described later is omitted.

  The rainproof line cover is provided with a line portion 12a that communicates with a through hole provided on the construction surface and draws an electric wire on the outdoor side indoors at a substantially central portion, and the outside and line portion on one end side in the longitudinal direction. A communication portion 12b communicating with 12a is formed, and the synthetic resin body main body 10 formed in a substantially flat plate shape disposed on the outdoor construction surface, and the communication portion 12b of the body main body 10 are substantially closed. A body 1 composed of a synthetic resin fixed piece 20 formed in a rectangular flat plate shape, a synthetic resin cover 30 covering the front surface of the body main body 10 and the fixed piece 20, and a back surface substantially opposite to the construction surface of the body main body 10. A synthetic resin waterproof packing 40 disposed between the body body 10 and the construction surface along the peripheral edge of the cover, and fixed to the fixing piece 20 to close the lower opening of the cover 30, so that the electric wire on the outdoor side is inside Bushing to pass through 0 to consist of.

  The body main body 10 has a substantially flat base portion 11 in which a communication portion 12b and an incoming wire portion 12a are formed from one end portion in the longitudinal direction (lower side portion in the construction state). A substantially U-shaped peripheral wall 13 projects forward. Further, the base portion 11 is provided on the outer surface of the peripheral wall 13 on the other end side in the longitudinal direction of the body body 10 (upper portion in the construction state) and on the outer surfaces of the peripheral walls 13 on the left and right sides on one end side in the longitudinal direction of the body body 10. Locking pieces 13a, 13b, 13b for attaching a cover having a substantially rectangular flat plate shape projecting in a direction substantially parallel to the front surface of the base portion 11 with a gap between the front surface and the front surface of the base portion 11. In addition, a gap is formed between the inner surface of the peripheral wall 13 on both the left and right sides on one end side (the communication part 12b side) in the longitudinal direction of the body main body 10, and in a direction substantially parallel to the front surface of the base part 11. Projecting ribs 13c, 13c for fixing pieces having a substantially rectangular flat plate shape are formed. The back surface of the base portion 11 is provided with a waterproof packing mounting wall 14 that protrudes substantially perpendicularly along the peripheral edge to the back surface (construction surface side). On the side where 12b is not formed, a boss hole 15 for inserting a fixing screw is provided.

  The fixing piece 20 is formed in a substantially rectangular flat plate shape so as to close the communication portion 12b of the body main body 10, and has a main portion 21 having a fixing screw insertion boss hole 24 penetrating substantially in the center, and one end of the main portion 21. The bushing mounting piece 22 protrudes forward from the front edge on the side, and the protrusion 23 protrudes from the rear edge on one end side of the main portion 21 toward the construction surface. A pair of guide pieces 25 that are inserted into the locking grooves 16 between the front surface of the base portion 11 and the ribs 13 c protrude from the left and right side edges of the main portion 21 toward the side. A locking recess 25a that locks with a locking projection 16a protruding into the locking groove 16 is formed. The bushing attachment piece 22 is formed with a concave portion 22a for passing through by recessing the central portion of the front end edge into a U-shape, and a plurality of projections 22b project along the periphery of the concave portion 22a. It is installed.

  The cover 30 has a substantially rectangular shape when viewed from the front, and a main portion 31 that is curved so that the cross-sectional shape increases toward the one end side (lower side) in the longitudinal direction so that the forward protrusion amount increases. The side wall 32 protrudes toward the back side from the peripheral edge except for one end in the longitudinal direction of 31 and is formed in a substantially box shape with the rear and bottom surfaces opened.

  The main portion 31 and the side wall 32 of the cover 30 are provided with ribs 33 protruding from the inner surface on one end side in the longitudinal direction so as to come into contact with the end surfaces of the bushing attachment piece 22 and the bushing 50. Further, at the rear end portions of the inner side surfaces of the left and right side walls 32 of the cover 30, cover-attached locking pieces 34 projecting inwardly protrude, and the cover 30 extends along the front surface of the body body 10. When the slider is slid, the locked piece 34 is fitted into the locking groove 17 between the front surface of the base portion 11 and the locking piece 13b. Each to-be-latched piece 34 is formed with a to-be-latched recess 35 into which a latching protrusion 17a projecting from the lower rear portion of the latching piece 13b is fitted. In addition, a latched piece (not shown) that is inserted into a latching groove between the front surface of the base portion 11 and the latching piece 13a is projected from the rear end of the inner side surface of the upper side wall 32 of the cover 30. Yes.

  The waterproof packing 40 is formed from a synthetic resin having flexibility so as to extend along the periphery of the body main body 10 excluding the incoming line portion 12a and the communication portion 12b. A groove 41 into which 14 is fitted is provided. In addition, positioning protrusions (not shown) protruding from the back surface of the body main body 10 are inserted into the left and right sides on one end side (upper side) of the waterproof packing 40 and the left and right sides on the other end side in the longitudinal direction. A positioning hole 42 is formed. This waterproof packing 40 is interposed between the body main body 10 and the construction surface at positions above the through hole and on both the left and right sides with the body main body 10 installed on the construction surface, and rainwater flowing down the construction surface. This prevents water from entering the indoor side through the through hole.

  The bushing 50 is made of a colorless and transparent material having insulation and flexibility, and protrudes outward from a substantially rectangular line portion 51 through which an electric wire is passed and a peripheral edge excluding the front end edge of the line portion 51. And a U-shaped frame portion 52. The through-line portion 51 is formed thinner than the frame portion 52 and is easily bent, and the through-line portion 51 is formed with a cut groove 53a along the front-rear direction at a substantially center in the left-right direction. Two cut grooves 53b extending along the direction are formed side by side in the front-rear direction. Further, a plurality of insertion holes 54 through which the plurality of protrusions 22 b of the bushing attachment piece 22 are inserted are formed in the frame portion 52 so as to penetrate the frame portion 52 in the thickness direction. Thus, when attaching the bushing 50 to the fixed piece 20, the bushing 50 is brought close to the bushing attachment piece 22 from the side where the protrusion 22 b is provided, and the protrusion 22 b is inserted into the insertion hole 54 of the bushing 50. The bushing 50 is fixed to the fixed piece 20 by crushing the tip of the protrusion 22 b protruding from the hole 54.

  When the rainproof cover as described above is attached to the construction surface, first, the positioning protrusion of the body body 10 is inserted into the positioning hole 42 and the attachment wall 14 is fitted into the groove 41 to waterproof the body body 10. The packing 40 is attached. Next, the body body 10 is moved along the construction surface so that the electric wire drawn to the outdoor side from the through hole provided on the construction surface and hung downward is introduced into the entry portion 12a through the communication portion 12b of the body body 10. After the body main body 10 is arranged so that the incoming line portion 12a communicates with the through hole, the fixed piece 20 to which the bushing 50 is attached is attached to the body main body 10 to close the communication portion 12b.

  Here, when attaching the fixing piece 20 to the body main body 10, the guide pieces 25 provided on the left and right sides of the fixing piece 20 are fitted into the locking grooves 16 of the body main body 10 from below, By locking the locking recess 25 a with the locking protrusion 16 a of the locking groove 16, the fixed piece 20 is attached to the body main body 10, and the communication portion 12 b is blocked by the fixed piece 20. In this state, fixing screws made of wood screws are inserted into the boss holes 15 and 24 formed in the body main body 10 and the fixing piece 20 and screwed to the construction surface to fix the body main body 10 and the fixing piece 20 to the construction surface. . At this time, the protruding portion 23 of the fixed piece 20 abuts against the construction surface and surrounds the outer periphery of the body main body 10 and the fixed piece 20 together with the waterproof packing 40 to prevent water droplets from entering the back side of the body main body 10 from the outside. is doing.

  Then, after passing the electric wire through the connecting portion 51 of the bushing 50, the cover 30 is attached to the front side of the body main body 10. When the cover 30 is attached to the body main body 10, the cover 30 is slid from the upper side to the lower side along the front surface of the body main body 10 with the back opening of the cover 30 facing the body main body 10 side. The 30 latched pieces 34 are fitted into the latching grooves between the front surface of the body main body 10 and the latching pieces 13 a and 13 b, and the cover 30 is attached to the body main body 10. Here, when the cover 30 is slid to a position where the upper side wall 32 of the cover 30 contacts the upper peripheral wall 13, the locking projection 17 a of the locking piece 13 b is engaged with the locked recess 35 of the locked piece 34. Thus, the cover 30 is prevented from coming off.

On the other hand, when removing the cover 30 from the body main body 10, if the cover 30 is slid upward along the front surface of the body main body 10, the locking protrusion 17 a of the locking piece 13 b and the locked piece 34 are locked. Since the locked state with the recess 35 is released, the cover 30 can be easily removed from the body main body 10.
Japanese Patent No. 3422275 (paragraph numbers [0012]-[0027] and FIG. 1)

  In the rainproof line cover having the above configuration, since there is no means for restricting the left and right side walls 32 of the cover 30 from expanding outward in the left-right direction, the electric wires passed through the through-line portions 51 of the bushing 50 are not provided. An external force that causes the left and right side walls 32 to expand outward in the left-right direction when pulled in the left-right direction or when an external force is applied that presses the main portion 31 from the front side of the cover 30 to the back side. As a result, there is a possibility that the left and right side walls 32 open outward or deform.

  The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a rainproof lined cover in which the cover is difficult to deform and the rigidity of the cover is increased.

In order to achieve the above-mentioned object, the invention of claim 1 has an insertion line portion that communicates with a through hole for inserting an electric wire provided on the construction surface and allows the electric wire to pass therethrough, and connects the through hole and the incoming line portion. A body that is fixed to the construction surface in a state of being made, a waterproof packing that is interposed between the body and the construction surface along the peripheral edge of the back surface that faces the construction surface of the body, The cover has a substantially box shape with an open rear surface, and has a cover attached to the front surface of the body. In addition to forming a gap on the front surface of each body, and facing each other, when the cover is slid along the front surface of the body, each locking piece is fitted between the front surface of the body to form a locking piece on the body. Cover sled on one of each side wall or body. When the cover is slid along the front surface of the body on each side wall of the cover or the other of the body, the locking protrusion is formed. By engaging the concave and convex portions, a positioning concave portion for positioning each side wall of the cover in the left-right direction is formed, and the opposite end from the front end portion in the sliding direction when attaching the cover is formed on the engaging convex portion. A feature is that a first inclined surface whose protrusion amount gradually increases as it approaches the portion and a second inclined surface whose width dimension in the left-right direction gradually increases are provided .

  According to the present invention, the left and right side walls of the cover are positioned in the left-right direction by engaging and disengaging the locking projection and the locking recess, so that both side walls open outward in the left-right direction with respect to the cover. Even if such an external force is applied, it is possible to suppress the both side walls from opening outward due to the concave and convex engagement between the locking convex portion and the locking concave portion, and the rigidity of the cover can be increased.

Further , according to the present invention, even if the left and right side walls of the cover are open or bent outward, when the cover is slid along the front surface of the body when the cover is attached, the first slope provided on the locking convex portion Since the locking convex portion is guided in two directions by the surface and the second inclined surface coming into contact with the end surface of the locking concave portion, the locking convex portion can be concavely and convexly locked at a regular position. It is possible to prevent the left and right side walls of the cover from being attached to the body in an open state or a bent state.

  According to the present invention, the left and right side walls of the cover are positioned in the left-right direction by engaging and disengaging the locking projection and the locking recess, so that both side walls open outward in the left-right direction with respect to the cover. Even if such an external force is applied, it is possible to suppress the both side walls from opening outward due to the concave and convex engagement between the locking convex portion and the locking concave portion, and the rigidity of the cover can be increased.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. The basic structure of the rainproof line cover is the same as that of the rainproof line cover of FIGS. 6 and 7 described above. Only the configuration related to the characteristic part of the present invention will be described below.

  As shown in FIG. 2, the rainproof line cover is provided with an insertion line portion 12a through which a wire is inserted through a wire insertion hole provided on the construction surface, and at one end in the longitudinal direction. A body portion 10 made of a synthetic resin that is provided on the construction surface in a state in which a communication portion 12b that communicates the outside with the wire entry portion 12a is provided, and the communication hole and the wire entry portion 12a communicate with each other, and a communication portion of the body body 10 The body 1 is made of a synthetic resin fixed piece 20 which is attached to the body body 10 so as to close the body 12b, and is a substantially box-shaped body having a lower surface and a rear surface opened at the time of construction. The synthetic resin cover 30 is attached to the front surface of the main body 10 and the fixed piece 20), and is interposed between the body main body 10 and the construction surface along the peripheral edge of the back surface facing the construction surface of the body main body 10. Waterproof package made of synthetic resin And emissions 40, is fixed to the fixing piece 20 closes the lower opening of the cover 30, provided with an outdoor side of the electric wire and the bushing 50 to Tsusen internally as main components.

  As with the conventional rainproof line cover shown in FIG. 6, the body main body 10 is a substantially flat base having a communication part 12b and a line entry part 12a formed from one end in the longitudinal direction (the lower part in the construction state). A substantially U-shaped peripheral wall 13 projects forward along the peripheral edge of the front surface of the base portion 11. Further, the base portion 11 is provided on the outer surface of the peripheral wall 13 on the other end side in the longitudinal direction of the body body 10 (upper portion in the construction state) and on the outer surfaces of the peripheral walls 13 on the left and right sides on one end side in the longitudinal direction of the body body 10. Locking pieces 13a, 13b, 13b for attaching a cover having a substantially rectangular flat plate shape projecting in a direction substantially parallel to the front surface of the base portion 11 with a gap between the front surface and the front surface of the base portion 11.

  On the other hand, the cover 30 has a substantially rectangular shape when viewed from the front, and a main portion 31 that is curved so that the amount of forward protrusion increases as the cross-sectional shape goes to one end side (lower side) in the longitudinal direction; The rear surface and the lower surface of the main portion 31 are formed in a substantially box shape with the side wall 32 protruding toward the back side from the peripheral portion excluding one end portion in the longitudinal direction. The main portion 31 and the side wall 32 of the cover 30 are provided with ribs 33 protruding from the inner surface on one end side in the longitudinal direction so as to come into contact with the end surfaces of the bushing attachment piece 22 and the bushing 50. Further, at the rear end portions of the inner side surfaces of the left and right side walls 32 of the cover 30, cover-attached locking pieces 34 projecting inwardly protrude, and the cover 30 extends along the front surface of the body body 10. When the slider is slid, the locked piece 34 is fitted into the locking groove 17 between the front surface of the base portion 11 and the locking piece 13b. Each to-be-latched piece 34 is formed with a to-be-latched recess 35 into which a latching protrusion 17a projecting from the lower rear portion of the latching piece 13b is fitted. In addition, a latched piece (not shown) that is inserted into a latching groove between the front surface of the base portion 11 and the latching piece 13a is projected from the rear end portion of the inner side surface of the upper side wall 32 of the cover 30. Yes.

  Further, in the present embodiment, as shown in FIGS. 1 and 2, the left and right peripheral walls 13 on one end in the longitudinal direction of the body main body 10 are arranged in a direction (front) that is substantially orthogonal to the sliding direction of the cover 30 and the left and right directions. When the projecting locking projection 18 protrudes and the cover 30 is slid along the front surface of the body body 10 to the rear edges of the ribs 33 provided on the left and right side walls 32 of the cover 30, the locking projection 18 A locking recess 36 for positioning is formed to position the left and right side walls 32 of the cover 30 in the left-right direction by engaging the unevenness.

  Here, when attaching the cover 30 to the body main body 10, if the cover 30 is slid from the upper side to the lower side along the front surface of the body main body 10 with the opening of the back portion of the cover 30 facing the body main body 10 side. The locked piece 34 of the cover 30 is fitted into the locking groove between the front surface of the body main body 10 and the locking pieces 13a and 13b, and the cover 30 is attached to the body main body 10. Then, when the cover 30 is slid to a position where the upper side wall 32 of the cover 30 contacts the upper peripheral wall 13, the locking projection 17 a of the locking piece 13 b is engaged with the locked recess 35 of the locked piece 34. Thus, the cover 30 is prevented from coming off. On the other hand, when removing the cover 30 from the body main body 10, if the cover 30 is slid upward along the front surface of the body main body 10, the locking protrusion 17 a of the locking piece 13 b and the locked piece 34 are locked. Since the locked state with the recess 35 is released, the cover 30 can be easily removed from the body main body 10.

  Here, when the cover 30 is completely attached, the locking recess 36 of the cover 30 and the locking protrusion 18 of the body main body 10 engage and disengage, so that the left and right side walls 32 of the cover 30 are positioned in the left-right direction. The Therefore, as shown in FIG. 3 (a), since a lateral tension B is applied to the electric wire 100 passed through the passing portion 51 of the bushing 50, the left side wall 32 is expanded outward. As shown in FIG. 3B, an external force C that presses the main portion 31 from the front side to the back side is applied, so that the left and right side walls 32 are expanded outward. Even if an external force is applied, the left and right side walls 32 are positioned in the left-right direction by engaging the concave and convex portions 36 and 18 so that the left and right side walls are difficult to open outwardly. The rigidity of the cover 30 can be increased.

Also, as shown in FIGS. 4 (a) and 4 (b), the locking projection 18 approaches the opposite (lower) end from the front (upper) end in the sliding direction when the cover is attached. The first inclined surface 18a in which the forward protrusion amount gradually increases and the second inclined surface 18b in which the lateral width dimension gradually increases are formed . As a result, even if the left and right side walls 32 of the cover 30 are open or bent outward, the cover 30 is provided on the locking projection 18 when the cover 30 is slid from the upper side to the lower side along the front surface of the body body 10. When the first inclined surface 18a and the second inclined surface 18b come into contact with the end surface of the locking recess 36, the locking projection 18 is guided in two directions (front-rear direction and left-right direction), and the locking projection 18 is can be locked uneven engagement at the position of the engagement recess 36 and regular, thus that the side wall 32 of the left and right cover 30 is prevented from being attached to the main body 10 in a state or flexed opened outward it can. Here, since the two inclined surfaces 18a and 18b are formed on the locking convex portion 18, the inclined surfaces 18a are brought into contact with the end surface of the locking concave portion 36 so that the inclined surface 18a is moved in the front-rear direction and the left and right directions. It is possible to guide each in two directions .

  Further, in the present embodiment, the locking recess 36 is formed in a portion near the side wall 32 of the rear end edge of the rib 33. However, as shown in FIG. good. However, since the rib 33 is thin, it is advantageous that the rib 33 has a higher strength when the locking recess 36 is formed near the side wall 32 as in the present embodiment.

  In the present embodiment, the body main body 10 is formed with the locking projections 18 projecting in the directions substantially orthogonal to the sliding direction and the left-right direction of the cover 30, and the cover 30 is mounted on the left and right side walls 32 of the cover 30. A locking recess 36 is formed on the left and right side walls 32 of the cover 30 to form a locking recess 36 that is engaged with the locking projection 18 when sliding along the front surface of the body body 10. Needless to say, when the cover 30 is attached to the body body 10, the body body 10 may be provided with a locking recess that engages with the locking protrusion of the cover 30.

The rainproof line entry cover of this embodiment is shown, (a) is the A section enlarged view of FIG.3 (b), (b) is a principal part side view. It is an external appearance perspective view same as the above. (A) (b) is explanatory drawing of a use condition same as the above. The body used for the above is shown, (a) is a partially enlarged front view, (b) is a partially enlarged side view, and (c) is a partially enlarged bottom view. It is a principal part enlarged view which shows the other structure same as the above. It is a disassembled perspective view of the conventional rainproof line cover. The conventional rainproof line entry cover is shown, (a) is a front view in the middle of attachment of a cover, (b) is a side view in the middle of attachment of a cover, (c) is a bottom view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Body 10 Body main body 13b Locking piece 18 Locking convex part 20 Fixed piece 30 Cover 32 Side wall 34 Locked piece 36 Locking concave part

Claims (1)

A body fixed to the construction surface in a state in which the through-hole is in communication with the through-hole for inserting the electric wire provided on the construction surface and allows the electric wire to pass therethrough, and the connection hole and the insertion portion are in communication with each other; ,
A waterproof packing interposed between the body and the construction surface along the peripheral edge of the back surface facing the construction surface of the body;
The lower surface and the rear surface during construction are substantially box-shaped, with a cover attached to the front of the body,
Formed in the rear end of the inner side of the left and right side walls of the cover is a cover-attached locking piece that protrudes inward, with the front of the body facing each other with a gap, and sliding the cover along the front of the body Then, each locking piece forms a locking piece that fits between the front of the body,
A locking projection that protrudes in a direction substantially orthogonal to the sliding direction and the left-right direction of the cover is formed on one of the side walls of the cover or the body, and the cover is formed on the other side of the side walls or the body of the cover. When sliding along the front surface of the body, a locking concave portion for positioning that positions each side wall of the cover in the left-right direction by locking the concave and convex portions with the locking convex portion is formed ,
As the locking projection approaches the opposite end from the front end in the sliding direction when the cover is attached, the first inclined surface where the amount of protrusion gradually increases, and the lateral width dimension gradually increases. A rainproof line cover comprising a second inclined surface .

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