JPH05144509A - Rainproof joint box - Google Patents

Abstract

PURPOSE:To install a cover in a body even when a gap between an obstacle above and itself is small. CONSTITUTION:A groove 17 is formed by ribs formed vertically on the both side surfaces of a body 1. A plurality of notched parts 19 are formed in the middle of the rib 18. A plurality of fixed ribs 27 for inserting and stopping the groove 17 through the notched part 19 of the body 1, are formed on the inside of a cover 25. The cover 25 is slightly displaced upward in front of the body 1, to match position of the fixed rib 27 of the cover 25 with that of the notched part 19 of the body 1. The fixed rib 27 is inserted into the notched part 19 by pushing the cover 25 to the side of the body 1, and the fixed rib 27 is inserted into the groove 17 of the body l and is stopped and fixed thereby by sliding the cover 25 downward. When the cover 25 is removed out of the body 1, the cover 25 is slightly slid upward, to match the position of the fixed rib 27 with that of the notched part 19, and the cover 25 is pulled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power line, a telephone line, or the like from the outside, which is drawn into the ground through a pillar, and is led out from the ground to draw the power line, the telephone line, or the like inside the building, and the outside of the building. It relates to a rainproof joint box installed on a wall.

[0002]

2. Description of the Related Art This type of rainproof joint box
The outer shell is composed of a body and a cover, and the body is installed on the outer wall surface, and the cover is fixed to the body by sliding the cover vertically with respect to the body. That is, a groove for sliding is formed on the side portion of the body, and a fixing rib that slides in the groove of the body is formed on the cover. The groove of the body and the fixing rib of the cover are formed over substantially the entire length in the vertical direction of the body and the cover.

[0003]

In the conventional example, when the cover is mounted on the body, the cover is slid downward from the top of the body because the groove is formed over substantially the entire length in the vertical direction of the body. Must be,
If there is an obstacle just above the joint box, the cover cannot be attached to the body. Therefore,
It was necessary to leave at least the size of the cover above the joint box.

The present invention has been provided in view of the above points, in which there is an obstacle above the joint box,
It is an object of the present invention to provide a rainproof joint box in which a cover can be attached to a body even if there is a small gap between the obstacle and the obstacle.

[0005]

According to the present invention, a power supply line, a telephone line or the like from the outside is drawn into the ground through a pillar, and is led out from the ground to draw the power supply line or the telephone line indoors. It is a rainproof joint box that is installed on the outer wall surface of the vehicle through waterproof packing, and is fixed to the outer wall surface and has a body with wires from the outside, and slides vertically on the front surface of this body. In a rainproof joint box equipped with a cover to be mounted by attaching a groove for sliding the cover on the side surface of the body, providing notches at a plurality of positions of the ribs forming the groove, and making this notch A plurality of fixing ribs for fixing the cover to the body are formed on the inner surface of the cover by inserting the cover into the groove and sliding the cover downward.

According to the second aspect of the present invention, a terminal block to which an electric wire from the outside is connected is provided in the body, and the cover is removable from the body. Further, in the third aspect of the present invention, a wire wire insertion hole is formed in the body, and the wire wire insertion hole is divided into two holes by a separator for separating high-power and low-power wires. Further, in claim 4, a rib is provided to allow water that has entered the body to escape downward, and a drain hole is provided at the bottom of the body.

Further, in claim 5, a knockout portion for connecting a conduit is formed on the bottom surface of the body, and a slit for removing the knockout portion by inserting the tip of a jig such as a screwdriver and rotating the jig is provided. It is formed on the surface of. Further, according to a sixth aspect, when the cover is slid to the upper end of the body, ribs are formed on the cover and the body to temporarily fix the cover to the body by the concave and convex engagement.

[0008]

Since the amount of slide of the cover is only adjusted to the fixing rib of the cover and the notch of the body, the amount of slide of the cover is small. Therefore, even if there is an obstacle above the joint box, The cover can be easily attached and removed. Further, according to claim 2, since the terminal block to which the electric wire from the outside is connected is arranged in the body and the cover is detachable from the body, the terminal block is built in, so that the reliability is improved. And the reliability of wiring are improved,
Further, since the cover is removable, maintenance and the like can be easily performed, and the demarcation of the responsibility of construction can be clarified.

Further, according to claim 3, if two holes for the electric wire insertion hole are formed, one for the high electric current and one for the weak electric current, the hole on each side becomes small and it is difficult to insert the electric wire, but one large hole. And, by inserting the electric wire into the separator after the electric wire is inserted, the construction is facilitated, and even if the joint box is attached to the switch box for one piece,
The electric wire can be inserted into the joint box with the separator divided into the high-voltage side and the low-voltage side, which facilitates construction.

Further, according to the present invention, the water that has entered the body is discharged downward by the ribs, and the water that flows downward is discharged from the water drain hole, so that a reliable product as a rainproof type is provided. Can be provided. Further, in claim 5, since the knockout portion can be deleted by inserting the tip of the jig such as a screwdriver into the slit of the knockout portion and rotating the jig, the knockout portion can be easily removed with one jig. It is possible and easy to construct.

Further, according to the present invention, the cover can be temporarily fixed to the body in a state where the cover is opened at the time of connection, maintenance, etc., so that the work can be performed easily and the loss of the cover can be prevented.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an exploded perspective view of a rainproof joint box of the present invention. The body 1 made of an insulating material is formed in a substantially L shape, and is composed of a back plate 2 and a bottom plate 3. A plurality of mounting holes 4 for inserting screws for mounting on the outer wall surface are formed on the end portion side of the back plate 2 of the body 1.

An electric wire insertion hole 5 is formed between the mounting holes 4, and a rectangular electric wire insertion hole 6 is formed at the center side. A terminal block mounting portion 8 on which a 100V / 200V terminal block 7 to which a power line from the outside is connected is disposed is formed on one end side of the central portion of the back plate 2. Further, a terminal block mounting portion 10 for arranging a terminal block 9 for weak electric current such as a telephone line is formed on the other end side of the central portion of the back plate 2.

The terminal block 7 is attached to the terminal block mounting portion 8 with a tapping screw 11, and a rib 12 for preventing water from entering the terminal block 7 is formed around the terminal block 7. In addition, the terminal block 9 is also attached to the terminal block mounting portion 1 with the tapping screw 13.
No. 0, and ribs 14 that prevent water from entering the terminal block 9 are formed around the terminal block 9. Backboard 2 of body 1
Side walls 15 are integrally provided around the upper part and both sides of the bottom plate 3 so as to prevent water from entering. Flange 16 is formed on both sides of the back plate 2, and a groove 17 is formed on the outer surface of the side wall 15 with a rib 18 formed in the vertical direction. A plurality of notches 19 are formed in the middle of the rib 18.

The bottom plate 3 of the body 1 is formed with three knockout portions 20 for inserting electric conduits standing from the ground, and the tip of a driver is inserted in the center of the circular knockout portion 20. The slit 21 is formed. In the center of the body 1, an insulating separator 22 for separating the terminal block 7 for power lines and the terminal block 9 for low power is arranged, and an end portion of the separator 22 is inserted and supported. A groove 23 is formed inside the side wall 15. Further, a rectangular frame-shaped rubber packing 24 is attached to the back surface of the body 1, and water is introduced into the back surface of the body 1 by the packing 24.

A cover 25, which is attached to the front surface of the body 1 and is made of an insulating material, has an opening on the back surface and a bottom surface.
The inner side of the side plate 26 of No. 5 has a fixing rib 27 which is inserted and locked into the groove 17 through the notch 19 formed in the side wall 15 of the body 1.
Are formed. There is a hole 2 in the lower front of the cover 25.
8, a mounting screw 30 in which the spring 29 is inserted is inserted from the front surface, and a retaining fastener 31 is attached to the inserted tip.

Next, the case where the cover 25 is attached to the body 1 will be described. The cover 25 is slightly displaced upward on the front surface of the body 1 installed on the wall surface so that the fixing rib 27 of the cover 25 and the notch 19 of the body 1 are aligned with each other. Then, when the cover 25 is pushed to the body 1 side,
The fixing rib 27 is inserted through the notch portion 19, and the cover 25 is slid downward to insert and lock the fixing rib 27 into the groove 17 of the body 1, so that the rib 18 of the body 1 and the fixing rib 27 of the cover 25 are separated from each other. At the same position, the cover 25 is fixed to the body 1. Then, the cover 25 is fixed to the body 1 by pushing the mounting screw 30 against the spring force of the spring 29 and screwing it into the screw hole of the body 1.

When removing the cover 25 from the body 1, after removing the mounting screw 30, the cover 25 is slid slightly upward so that the fixing rib 27 and the cutout portion 19 are aligned with each other, and the cover 25 is pulled forward. When pulled, the cover 25 can be easily removed from the body 1. Here, the amount by which the cover 25 is slid is only the amount by which the fixing rib 27 is fitted to the cutout portion 19, and therefore, even if the obstacle 32 is immediately above the body 1 as shown in FIG. Since the slide amount is small, the cover 25 can be easily attached and detached.

By the way, as shown by the alternate long and short dash line in FIG.
When the separator 22 is arranged in the body 1, the electric wire insertion hole 6 in the central portion is divided into two holes. This is because if two wire insertion holes are formed for high electric current and weak electric current, the holes on each side become smaller, making it difficult to insert the electric wire. Therefore, in this embodiment, the electric wire insertion hole 6 is formed by a large long hole extending over the strong electric current side and the weak electric current side, and the electric wire is inserted into the one large electric wire insertion hole 6.
Therefore, since the electric wire insertion hole 6 is large, the electric wire can be easily inserted. Then, after inserting the electric wire, the electric wires are distributed by the separator 22 to facilitate the construction, and even if the joint box is attached to the switch box for one piece, the separator 22 separates the electric power side and the weak electric side. Electric wires can be inserted into the joint box, facilitating construction.

Next, the knockout section 20 will be described. As shown in FIGS. 4 and 5, two circular knockout portions 20 each having a slit 21 formed in the center thereof are supported by the bottom plate 3 of the body 1 at two points on both sides. That is, the two support pieces 35 from the center are connected to both sides of the knockout portion 20. Screwdriver 3
By inserting the tip of No. 4 into the slit 21 of the knockout portion 20 and twisting the driver 34 as shown by the arrow in FIG. 4, the support piece 35 can be destroyed and the knockout portion 20 can be easily removed. And knockout part 2
Connect the conduit to the part where 0 is deleted.

Here, the knockout portion 20 is supported by the support piece 35.
In the case of one-point support according to (1), the knockout portion 20 easily rotates and also becomes weak in strength. Therefore, by providing the support portions of the knockout portion 20 at two points and making them as close to the center as possible, the strength of the knockout portion 20 can be maintained, and the structure can be simplified by being easily divided by the driver 34.

Next, a case where the cover 25 is temporarily fixed to the body 1 will be described. As shown in FIG. 1, ribs 36 are formed at the upper ends on both sides of the body 1.
A rib 38 having a concave portion 37 that engages with 6 is formed on the lower portion of the inner surface of the cover 25. The surface of the projection 39 on the upper portion of the rib 38 is curved so that the rib 36 can be easily overcome.

From the state where the cover 25 is completely covered with respect to the body 1, the cover 25 is slid upward while the fixing rib 27 of the cover 25 is slid into the groove 17 of the body 1. When the cover 25 reaches the upper end of the body 1, the protrusion 39 of the rib 38 of the cover 25 rides over the rib 36 of the body 1, and the concave portion 37 of the rib 38 and the rib 36 engage with each other as shown in FIG. To do.

Due to the engagement of the concavities and convexities, the cover 25 is attached to the body 1.
It will be temporarily fixed to the body 1 with the front surface of the body exposed. (Second Embodiment) FIG. 7 shows a second embodiment. Compared to FIG. 1, the bottom plate 3 of the body 1 is provided with water drain holes 33. One rib 12 of the back plate 2 of the body 1 is made higher in the center of the upper portion to form inclined portions 12a on both sides, and the other rib 14 is also formed with an inclined portion 14a. Therefore, the water that has penetrated from the wire insertion holes 5 and 6 is prevented from entering the inclined portions 1 of the ribs 12 and 14.
The water flowing downward through 2a and 14a and reaching the lower side is discharged to the outside from the water drain hole 33 of the bottom plate 3.

The upper portion 15a of the side wall 15 of the body 1 allows the water that has entered through the gap between the body 1 and the cover 25 to escape to the side surface of the body 1.

[0026]

INDUSTRIAL APPLICABILITY As described above, according to the present invention, a power supply line, a telephone line or the like from the outside is drawn into the ground through a pillar and is led out from the ground to draw the power supply line or the telephone line indoors, It is a rainproof joint box that is installed on the outer wall surface of the vehicle through waterproof packing, and is fixed to the outer wall surface and has a body with wires from the outside, and slides vertically on the front surface of this body. In a rainproof joint box equipped with a cover to be mounted by attaching a groove for sliding the cover on the side surface of the body, providing notches at a plurality of positions of the ribs forming the groove, and making this notch By inserting the cover into the groove and sliding the cover downward, a plurality of fixing ribs for fixing the cover to the body are formed on the inner surface of the cover. Since the only amount to align the notch, the slide amount of the cover is small, therefore, even if there is upward obstacle joint box, in which an effect that attachment and detachment of the cover can be easily.

Further, according to the present invention, since the terminal block to which the electric wire from the outside is connected is arranged in the body and the cover is detachable from the body, the terminal block is built in. By improving the reliability and reliability of the wiring, and by making the cover removable,
Maintenance is easy and the demarcation of construction responsibilities can be clarified.

According to the third aspect of the present invention, the electric wire insertion hole of the body is formed, and the electric wire insertion hole is divided into two holes by the separator for separating the strong electric current and the weak electric current.
If two holes for the electric wire insertion hole are formed, one for strong electric current and one for weak electric current, the hole on each side becomes smaller and it is difficult to insert the electric wire,
Make one large hole and distribute the wires with the separator after inserting the wires to facilitate the construction. Also, even if the joint box is attached to the switch box for one piece, the separator will not The electric wire can be inserted into the joint box separately on the side, which facilitates construction.

Further, according to the present invention, since the rib for escaping the water that has infiltrated into the body is provided downward and the water drain hole is provided at the bottom of the body, the water that has infiltrated into the body is downwardly moved by the rib. It is possible to provide a reliable product as a rainproof type by letting it escape and further discharging the water flowing downward from the drainage hole. Further, in claim 5, a knockout portion for connecting a conduit is formed on the bottom surface of the body, and a slit for removing the knockout portion by inserting the tip of a jig such as a screwdriver and rotating the jig is formed on the surface of the knockout portion. Since it is formed, you can remove the knockout part by inserting the tip of a jig such as a screwdriver into the slit of the knockout part and rotating the jig, so you can easily remove the knockout part with one jig It can be done and the construction is easy.

Further, in claim 6, when the cover is slid to the upper end of the body, ribs for temporarily fixing the cover to the body by the concave and convex engagement are formed on the cover and the body. Because the cover can be temporarily fixed to the body with the cover open at the time,
This facilitates the work and also prevents the cover from being lost.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an entire joint box according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of the same as above.

FIG. 3 is an exploded perspective view of the above.

FIG. 4 is an exploded perspective view when the knockout portion of the above is deleted.

FIG. 5A is a plan view of the knockout portion of the above. FIG. 5B is a sectional view taken along line AA of FIG.

FIG. 6 is a plan view of a main part when the above cover is temporarily fixed to the body.

FIG. 7 is an exploded perspective view of a second embodiment of the above.

[Explanation of symbols]

 1 Body 6 Wire Insertion Hole 7 Terminal Block 9 Terminal Block 12 Rib 14 Rib 17 Groove 18 Rib 19 Cutout 20 Knockout Part 21 Slit 22 Separator 25 Cover 27 Fixing Rib 33 Water Drain 34 Driver 36 Rib 38 Rib

Front page continuation (72) Inventor Hideki Yokoyama 1048 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works Co., Ltd.

Claims (6)

[Claims] 1. A power supply line, a telephone line, or the like from the outside is drawn into the ground through a pillar, is led out from the ground, and the power line, the phone line, or the like is drawn indoors, and a waterproof packing is attached to an outer wall surface of a building. A rain-proof type joint box installed via a body, which has a body fixed to the outer wall surface and provided with a wire from the outside, and a cover which is slidably mounted on the front surface of the body. In the rainproof joint box, a groove for sliding the cover is formed on the side surface of the body, cutouts are provided at a plurality of positions of the ribs that form the groove, and the groove is inserted into the groove through the cutouts. A rainproof joint box characterized in that a plurality of fixing ribs for fixing the cover to the body by sliding the cover downward are formed on the inner surface of the cover. 2. A rainproof joint box according to claim 1, wherein the body is provided with a terminal block to which an electric wire from the outside is connected, and the cover is detachable from the body. 3. An electric wire insertion hole for a body is formed, and the electric wire insertion hole is divided into two parts by a separator that separates high-voltage electric wires and low-voltage electric wires.
The rainproof joint box according to claim 1, wherein the rainproof joint box is divided into two holes. 4. The rainproof joint box according to claim 1, wherein a rib is provided to allow water that has entered the body to escape downward, and a drain hole is provided at the bottom of the body. 5. A knockout portion for connecting a conduit is formed on the bottom surface of the body, and a slit for removing the knockout portion is formed on the surface of the knockout portion by inserting the tip of a jig such as a screwdriver and rotating the jig. The rainproof joint box according to claim 1, wherein 6. The rainproof joint according to claim 1, wherein ribs are formed on the cover and the body to temporarily fix the cover to the body by engagement of concavities and convexities when the cover is slid to the upper end of the body. box.