JP2002044850A - Cable junction box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cable junction box which rain water can hardly enter even when its door is open on a rainy day. SOLUTION: This cable junction box has an opening 2a, the main box 2 having a first insert hole 2d for the cable 5, a first free-to-open door 3 attached on the main box to cover the opening, and a second free-to-open door 4 having a second cable insert hole 4d and also attached on the main box. The second door covers the opening watertightly together with the first door. The first door 3 has another cover 3c to cover the gap formed with the main box when opened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a cable connection box,
In particular, the present invention relates to a cable junction box used in an optical subscriber line network installed outdoors.

[0002]

2. Description of the Related Art As a cable connection box used in an optical subscriber line network installed outdoors, for example, Japanese Unexamined Patent Application Publication No. 10-308586.
An optical subscriber line network device disclosed in Japanese Patent Application Laid-Open Publication No. H10-264, is known. This network device adopts a structure in which an opening of a cabinet body is sealed with a waterproof packing and a door in consideration of waterproofness after installation.

However, despite the fact that the network device is installed outdoors, no consideration is given to waterproofness when the door is opened at the time of installation or at the time of cable connection after installation. For this reason, the network device has a problem in that, when the door is opened in rainy weather and a connection operation or the like is performed, rainwater enters the cabinet body and adversely affects the cable connection portion.

[0004] The present invention has been made in view of the above points, and an object of the present invention is to provide a cable connection box in which rainwater hardly enters inside even when a door is opened in rainy weather.

[0005]

In order to achieve the above object, according to the present invention, there is provided a main body having an opening and a first insertion portion for a cable, a main body which is attached to the main body to be openable and closable and covers the opening. The first door and the opening are openable and closable with the first door and watertightly covered.
A cable connection box provided with a second door provided with an insertion portion, wherein the first door is provided with a cover member that covers a gap formed between the first door and the main body when the first door is opened. It was.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a cable connection box according to the present invention will be described below in detail with reference to FIG. The cable connection box 1 is molded from aluminum, plastic, or the like, and, as shown in FIG.
It has.

The main body 2 is a box having an opening 2a at the front, and an optical fiber cable 5 is provided on the side wall 2b and the front wall 2c.
2d is provided. Each insertion portion 2d is an opening formed in a wall surface, and prevents penetration of rainwater by a sealing material attached to the opening. Further, the main body 2 may be provided with, for example, a receiving / emitting device, a conversion unit for mutually converting an electric signal and an optical signal, and the like.

Here, as shown in FIG. 1, two optical fiber cables 5 are introduced into the main body 2, one of which is inserted through the insertion portion 2 d of the side wall 2 b and the other of which is described later. Through the insertion portion 4d and the insertion portion 2d of the front wall 2c, each is introduced into the main body 2 and connected to each other by an optical connector 5a provided at an end. The inner door 3
The first door is attached to the upper part of the main body 2 by a hinge 3a so as to be openable and closable, and has a door plate 3b and an eave 3c that are flipped upward as shown in the figure. The door plate 3b is a door that covers the opening 2a, and lock handles 3d are provided on both sides. The lock handle 3 d is a handle that locks the inner door 3 to the main body 2 by locking the tip to a locking portion 2 e formed on the front wall 2 c. On the other hand, the eave 3c is a cover member that projects upward to the upper part of the main body 2 and covers a gap formed between the main body 2 and the inner door 3 when the inner door 3 is flipped up and opened. Here, the size of the eaves 3c is set so that the outer door 4 can be closed when the inner door 3 is closed and locked to the main body 2 with the lock handle 3d.

The outer door 4 is a second door that is attached to the lower portion of the main body 2 by a hinge 4a so as to be openable and closable, and that opens and closes the opening 2a together with the inner door 3 and covers the watertight. Outer door 4
A transparent body 4c such as glass or plastic is fitted into the center of a rectangular frame 4b, and an insertion section 4d of an optical fiber cable 5 configured similarly to the insertion section 2d is formed on the left side of the frame 4b. ing. Further, as shown in the figure, the frame 4b is provided with a packing 4e on its inner surface, which abuts against the outer peripheral portion of the main body 2 and seals the liquid tight. Here, the outer door 4
When the inner door 3 is unlocked, the lock handle 3
Closed due to interference with d.

[0010] Cable junction box 1 configured as described above
Usually, after locking the inner door 3 to the main body 2, the outer door 4 is closed and installed on an overhead ground wire or a telephone pole. Then, at the time of optical fiber connection work or the like, the outer door 4 is opened, the lock is turned by turning the lock handle 3d, and the inner door 3 is opened. At this time, since the inner door 3 is provided with the eaves 3c, when the inner door 3 is flipped up to open, the eaves 3c protrude to the upper part of the main body 2 as shown in the figure.
And a gap formed between the inner door 3 and the inner door 3. For this reason, even if the inner door 3 is opened in rainy weather, it is difficult for rainwater to enter the inside of the cable connection box 1, so that the connection work of the optical fiber can be performed with confidence.

[0011]

According to the first aspect of the present invention, it is possible to provide a cable connection box in which rainwater hardly enters inside even when the door is opened in rainy weather.

[Brief description of the drawings]

FIG. 1 is a perspective view of a cable connection box of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cable connection box 2 Main body 2a Opening 2d insertion part 3 Inner door (first door) 3b Door plate 3 3c Eave 3d Lock handle 4 Outer door (second door) 4b Frame 4d Insertion part 4e Packing 5 Optical fiber Cable 5a Optical connector

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H05K 5/03 H05K 5/03 C 5/06 5/06 A (71) Applicant 596077259 600 Mountain Avenue, Murray Hill, New Jersey 07974-0636 U.S.A. S. A. (72) Inventor Koichiro Mita 2-6-1 Marunouchi, Chiyoda-ku, Tokyo Inside Furukawa Electric Co., Ltd. (72) Inventor Michiyasu Miko 2-6-1 Marunouchi, Chiyoda-ku, Tokyo Furukawa Electric F term (reference) in stock 2H036 RA12 2H038 CA38 4E360 AB13 AB33 AB64 BB02 BB12 BB17 BC03 BC05 EA16 EA18 ED03 ED16 ED23 ED27 FA07 FA08 GA02 GA06 GA29 GA46 GB93 GB94 GC04 GC08 5G375 AA18 BA27 BB03 CB81 DB02 CA17

Claims (1)

[Claims] 1. A main body having an opening and a first insertion portion of a cable, a first door attached to the main body so as to be openable and closable, and covering the opening, and the opening and closing together with the first door. A cable connection box comprising a second door, which is freely and watertightly covered, and is provided with a second insertion portion for the cable, wherein the first door is formed between the first door and the main body when the cable is opened. A cable connection box provided with a cover member for covering a gap to be formed.