JP3856191B2 - Optical fiber extra wire storage case - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an optical fiber core wire extra length storage case of a type suspended from a support rod.
[0002]
[Prior art]
A conventional optical fiber extra wire storage case of this type is shown in FIG. The extra length storage case 10 is formed by bending a spring elastic plastic sheet to form a case main body 12 for accommodating the extra length of the optical fiber core and a lid 14. The lid 14 is connected to the case main body 12 by a bent portion 16 at the upper edge, and can be opened and closed by elastic deformation. Mounting holes 18 are formed in the vicinity of both ends of the upper ends of the case body 12 and the lid 14.
[0003]
The extra length storage case 10 is suspended from the support bar 20 by attaching a pair of attachment holes 18 to a pair of ring-shaped support bars 20 arranged at the same interval. The case body 12 and the lid 14 are formed with a slit (not shown) reaching the attachment hole 18 from the upper end edge, and the attachment hole 18 is attached to the support rod 20 through this slit.
[0004]
A pair of ring-shaped support rods 20 are fixed to a support arm 22, and the support arm 22 is fixed to a connecting frame 24. As shown in FIG. 5, the connection frame 24 connects the terminal frames 26 at both ends. The terminal frame 26 is integrally provided with a spacer 28 for positioning the end portion of the optical cable. These members are accommodated in a case 30 having a watertight structure.
[0005]
As is clear from FIG. 5, the pair of ring-shaped support rods 20 are disposed in the center of the housing 30, and the extra-length storage case 10 suspended from the support rods 20 has a ring shape. The support rod 20 can be rotated around the support rod 20 using the support rod 20 as a guide. Accordingly, as shown in FIG. 5 (c), a large number of extra-length storage cases 10 can be radially attached to the support rod 20, thereby allowing a large number of optical fiber cores to be stored. .
[0006]
[Problems to be solved by the invention]
As described above, the conventional optical fiber extra cable length storage case suspended from the support rod is made by bending a plastic sheet with spring elasticity, so that the lid has a lower end edge. If it is lifted by pinching with a finger, it can be easily opened by elastic deformation. However, when the opening force is released, the lid returns to a closed state due to spring elasticity, so that it is difficult to hold the lid in the open state. For this reason, in the conventional extra length storage case, it is difficult to store the optical fiber core by one person, and there is a problem that the storage operation of the optical fiber core becomes two persons.
[0007]
In view of the above-described problems, an object of the present invention is to enable an optical fiber core wire extra-length storage case to be suspended from a support rod to be held in an open state.
[0008]
[Means for Solving the Problems]
In order to achieve this object, the present invention has a case body that accommodates the extra length of the optical fiber core, and a lid that is openably and closably connected to the upper edge of the case body, and is formed near both ends of the upper edge. In the optical fiber extra wire length storage case adapted to be suspended from the support rod by attaching the pair of attachment holes to the pair of support rods arranged at the same interval as the attachment holes, The mounting hole is formed only in the case body, and a portion corresponding to the mounting hole of the lid and a lower portion thereof are notched portions, and the notched portion is positioned below the mounting hole when the lid is closed. Further, when the lid is opened, a locking piece is provided which protrudes over the support bar by elastic deformation and is hooked on the support bar.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 to 3 show an embodiment of the present invention. This optical fiber core wire extra length storage case 10 has a case main body 12 for storing the extra length of the optical fiber core wire, and a lid 14 connected to the upper end edge of the case main body 12 so as to be openable and closable as in the prior art. ing. FIGS. 1A, 1B and 2 show a state where the lid 14 is closed, and FIGS. 1C, 1D and 3 show a state where the lid 14 is opened.
[0010]
The case body 12 and the lid 14 are connected to each other at the upper end edge by a hinge portion 32 so as to be opened and closed. Since the connection is made by the hinge portion 32, the lid 14 can be fully opened as shown in FIG.
[0011]
The attachment hole 18 for attaching the extra-length storage case 10 to the ring-shaped support rod 20 is formed only in the case main body 12 and is not formed in the lid 14. A portion corresponding to the mounting hole 18 at both ends of the lid 14 and a lower portion thereof are notched portions 34 so as not to hit the support rod 20 when the lid 14 is opened. A locking piece 36 projects from the notch 34 so as to be positioned below the attachment hole 18 when the lid 14 is closed. The locking piece 36 hits the support bar 20 when the lid 14 is opened, but when it is further opened, it is elastically deformed so that it can get over the support bar 20.
[0012]
For this reason, when the lid 14 is opened to an angle at which the locking piece 36 gets over the support bar 20, the locking piece 36 is placed on the inner peripheral side of the support bar 20 even if the force to open the lid 14 is released. Since it is hooked, it is possible to hold the open state as shown in FIGS. If such a state can be maintained, the optical fiber core wire can be stored alone.
[0013]
In the figure, reference numerals 38a to 38d denote jump-out preventing pieces of the optical fiber core wire provided in the case main body 12.
In the above embodiment, the support bar 20 has a ring shape, but the support bar 20 may have a linear shape.
[0014]
【The invention's effect】
As described above, according to the present invention, the optical fiber core wire extra length storage case suspended from the support rod can be held in an open state, so that the optical fiber core wire can be stored by one person. This makes it easy to do so and saves man-hours.
[Brief description of the drawings]
1A and 1B show an embodiment of an optical fiber extra wire length storage case according to the present invention suspended from a support rod, FIG. 1A is a front view with a lid closed, and FIG. FIG. 4C is a front view of the state where the lid is opened, and FIG.
2 shows a state in which the cover of the extra length storage case of FIG. 1 is closed, (a) is a front view, (b) is a side view, and (c) is a bottom view. FIG.
3 shows a state in which the cover of the extra length storage case of FIG. 1 is opened, (a) is a front view, (b) is a side view, and (c) is a bottom view. FIG.
4A and 4B show a conventional optical fiber core wire extra-length storage case suspended from a support rod, wherein FIG. 4A is a plan view, FIG. 4B is a front view, and FIG.
5A and 5B show a storage state of the extra-length storage case of FIG. 4 in a housing, wherein FIG. 5A is a plan view, FIG. 5B is a front view, and FIG. 5C is a side view.
[Explanation of symbols]
10: Extra-length storage case
12: Case body
14: Lid
18: Mounting hole
20: Ring-shaped support rod
22: Support arm
32: Hinge part
34: Notch
36: Locking piece

Claims (1)

It has a case body (12) that houses the extra length of the optical fiber core and a lid (14) that is openably and closably connected to the upper edge of the case body (12), and is formed near both ends of the upper edge. By attaching a pair of mounting holes (18) to a pair of support bars (20) arranged at the same interval as the mounting holes (18), the mounting holes (18) can be suspended from the support bars (20). In the optical fiber extra cable length storage case
The mounting hole (18) is formed only in the case body (12), and a portion corresponding to the mounting hole (18) of the lid (14) and a lower portion thereof are formed as a notch portion (34), and the notch portion (34 When the lid (14) is closed, it is located below the mounting hole (18). When the lid (14) is opened, the support rod (20) is overcome by elastic deformation and caught on the support rod (20). An optical fiber core wire extra-length storage case, characterized in that a locking piece (36) is provided in a protruding manner.

Images