JP2518303Y2 - Cable retention structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a cable holding structure for holding a cable introduced into a housing by the housing.

[Conventional technology]

Conventionally, as a structure in which a cable to be introduced into a housing is held by the housing, as shown in FIG. 4, a cable introducing port is opened in a matching portion of the upper and lower cases, and the cable is inserted into the cable introducing port by the upper and lower cases. There is something to hold.

FIG. 4 is a cross-sectional view showing a conventional cable holding structure. In FIG. 4, reference numeral 1 is a lower case, and 2 is an upper case that fits into an open portion of the lower case 1 to form a housing 3 for electronic equipment. . Reference numeral 4 denotes a printed circuit board. The printed circuit board 4 is screwed into the lower case 1, and a terminal block 6 to which a cable 5 is connected is mounted. Reference numeral 7 denotes a cable introduction port for guiding the cable 5 into the housing 3, and the cable introduction port 7 is opened at a portion where the lower case 1 and the upper case 2 are fitted with a dimension slightly smaller than the thickness dimension of the cable 5. Has been done.

In order to hold the cable 5 in the housing 3 configured as described above, the lower case 1 and the upper case 2 are put together while the cable 5 is passed through the cable introduction port 7. That is, when the upper and lower cases 1 and 2 are combined, the cable 5 is connected to the cable introduction port 7 by the upper and lower cases 1 and 2.
You will be held inside.

[Problems to be solved by the device]

However, in the structure in which the cables are held between the upper and lower cases 1 and 2 as described above, if the thickness of the cable to be used does not match the cable inlet 7, the upper and lower cases 1 and 2
May not fit or the cable may not be held. That is, in the case adopting the conventional cable holding structure, the lower case 1 or the upper case 2 is changed by changing the opening size of the cable introduction port 7 so that the cables having different thicknesses can be surely held. Multiple types must be formed. In order to do so, a plurality of types of case manufacturing dies are required, which increases the cost. Also, the cable 3 can be installed by mounting the housing 3 on a wall surface or the like.
When the cable 5 is extended below the housing 3, the cable 5 is simply held between the lower case 1 and the upper case 2, and therefore the held portion of the cable 5 tends to slip due to its own weight. For this reason, a pulling force is easily applied directly to the connection portion with the terminal block 6, and the cable 5 may be broken or the connection portion may be loosened at this connection portion.

[Means for solving the problem]

In the cable holding structure according to the present invention, a terminal block is provided in the housing in the vicinity of the cable introduction port, and the cable is pressed against the side surface of the terminal block between the terminal block and the cable introduction port side inner wall of the housing. It has a horizontal portion and a cable holding groove that is opened with a size that allows the cable to be inserted and has a cable holding groove that bends the cable up and down in the vicinity of the cable introduction port, and inserts a cable holding member that is held by the upper and lower cases. The cable holding groove is provided at each of the upper and lower ends of the cable holding member with different opening sizes.

[Action]

The cable is pressed against the terminal block by the horizontal portion of the cable holding member, and is held between the cable introduction port and the groove for holding the cable in a bent state. It can hold cables of different heights.

〔Example〕

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS.

FIG. 1 is a perspective view of a housing in which a cable holding structure according to the present invention is adopted, FIG. 2 is an exploded perspective view of the same, and FIG. 3 is a longitudinal sectional view showing an enlarged main part. In these figures, the same or equivalent members as those described in FIG. 4 are designated by the same reference numerals, and detailed description thereof will be omitted. First
In FIG. 3 to FIG. 3, reference numeral 11 denotes an upper case which is fitted to the lower case 1 to form the electronic device housing 3.
An opening 11a for attaching and detaching the cable 5 is formed at a portion corresponding to the terminal block 6 in the opening 11a.
An inner frame 11 that faces the inside of the housing 3 and surrounds the terminal block 6 is provided at the opening edge of the
b is provided integrally.

Reference numeral 12 denotes a terminal block cover that is fitted into the opening 11a of the upper case 11 to close the opening 11a and holds a stopper described later in the opening 11a. The terminal block cover 12 is formed in a generally L-shaped cross section, and has a projecting piece 12a at one end which is engaged with the upper case 11 and the other end having this portion as a lower case. There is provided a cable introduction groove 12b which forms a cable introduction port by being brought into contact with the opening edge of No. 1. In addition, this cable introduction groove 1
The opening shape of 2b is formed in a substantially semicircular shape. The terminal block cover 12 is configured to be attached to the upper case 11 laterally (a direction orthogonal to the direction in which the upper and lower cases are aligned), as indicated by the alternate long and short dash line in FIG.

Reference numeral 13 is a stopper for holding the cable 5, and this stopper 13 is, as shown in FIGS. 2 and 3, in the opening 11a and the terminal block 6 and the side wall 11c of the cable introduction port of the upper case 11. A cable holding plate 14 that is fitted between the terminal block cover 12 and the printed circuit board 4 when the terminal block cover 12 is attached to the upper case 11, and a cable holding plate 14 perpendicular to the cable holding plate 14. And a plate-shaped rib (15) for holding the cable protruding from the. And the cable holding plate
A cable holding first groove 14a is provided at a lower end portion of the cable 14, and a cable holding second groove 14b having an opening size smaller than that of the first groove 14a is provided at an upper end portion thereof. The opening size of the first groove 14a is set to a size into which a large diameter cable is inserted, and the opening size of the second groove 14b is set to a size in which a small diameter cable is inserted. The plate-shaped rib 15 is arranged at a position facing the terminal block 6 when the stopper 13 is fitted into the opening 11a of the upper case 11. The size is set so that the cable is sandwiched between the side surface of the table 6 and the side surface.

16 is a modular jack and 17 is an adapter plug, which are mounted on the printed circuit board 4. Reference numeral 18 denotes a set screw for fixing the printed circuit board 4 to the lower case 1.

Next, a procedure for holding the cable 5 using the stopper 13 described above will be described. First, the printed circuit board 4 is attached to the lower case 1. At this time, the printed circuit board 4
Terminal block 6, modular jack 16 and adapter plug 17
Etc. are installed in advance. Next, the upper case 11 is mounted on the lower case 1 with the terminal block 6 facing the opening 11a, and the cable 5 is connected. The cable 5 may be connected before the upper case 11 is attached.
And in order to hold the cable 5, the stopper 13
The upper case 11 with the cable 5 passed through the first groove 14a
The terminal block cover 12 is attached to the upper case 11 by fitting the terminal block cover 12 into the opening 11a from above. stopper
When inserting the cable 13, the cable 5 is inserted into the first groove 14a and is pressed toward the printed circuit board 4 by the cable holding plate 14 as shown in FIG. The tip portion is pressed against the side surface of the terminal block 6.
Then, in order to mount the terminal block cover 12, the first groove
The cable 5 led out from 14a is connected to the cable introduction groove 12b.
The projecting piece 12a is locked to the upper case 11 while being passed inside.

When the stopper 13 and the terminal block cover 12 are attached in this manner, the cable 5 has its tip end portion pressed against the side surface of the terminal block 6 by the plate-like ribs 15, and the portion near the cable introduction port is fixed by the cable holding plate 14. Printed circuit board 4
It is bent to the side and is sandwiched by the bottom of the first groove 14a and the cable introduction port of the housing 3. That is, the cable 5 is substantially held between the lower case 1 and the upper case 11.

Further, in order to hold a cable having a diameter smaller than that of the above-mentioned cable 5, the stopper 13 is turned upside down and the upper case is held.
Insert into 11. In this way, the cable holding plate 14
The second groove 14b of will face the printed circuit board 4 side,
The cable is pushed and bent toward the printed circuit board 4 while being passed through the second groove 14b. Even in this case, the cable is held by being sandwiched by the second groove 14b and the cable introduction port.

Therefore, according to the present invention, the cable 5 is held by being bent by the cable introduction port of the housing 3 and the first groove 14a or the second groove 14b of the stopper 13, and the cable holding portion is non-linear. Can be in the form of. In addition, by reversing and mounting the stopper 13, the cables 5 having different thicknesses can be held.

In addition, as shown in this embodiment, the terminal block cover 12 is locked to the upper case 11, and the stopper 13 is held by the terminal block cover 12 in the housing 3. The cable 5 can be connected without removing it,
It is possible to quickly hold the cable 5 after connection without using a tool or the like.

[Effect of device]

As described above, in the cable holding structure according to the present invention, the terminal block is provided in the housing in the vicinity of the cable introduction port, and the side surface of the terminal block is provided between the terminal block and the cable introduction port inner wall of the chassis. A cable holding member that has a horizontal portion that presses the cable into and a cable holding groove that is opened with a size for inserting the cable and that bends the cable up and down in the vicinity of the cable introduction port, and that is held by the upper and lower cases. Since the cable holding groove is provided at each of the upper and lower end portions of the cable holding member with different opening dimensions, the cable is pressed against the terminal block by the horizontal portion of the cable holding member, and at the same time as the cable introduction port. It will be held in the bent state with the cable holding groove. Therefore, the cable holding portion can be made non-linear, so that the cable can be firmly held, and the load is directly applied to the cable connecting portion even when the housing is installed in a standing state. Can be prevented. Also, by reversing and mounting the cable holding member, it is possible to hold cables having different thicknesses. Therefore, it is not necessary to form a plurality of types of cases to hold the cables having different thicknesses, so that the cost can be kept low.

[Brief description of drawings]

FIG. 1 is a perspective view of a housing adopting a cable holding structure according to the present invention, FIG. 2 is an exploded perspective view of the same, FIG. 3 is a longitudinal sectional view showing an enlarged main part, and FIG. It is sectional drawing which shows the conventional cable holding structure. 1 ... Lower case, 5 ... Cable, 6 ... Terminal block, 11 ...
… Upper case, 12 …… Terminal block cover, 12b …… Cable introduction groove, 13 …… Stopper, 14 …… Cable holding plate, 14
a ... Groove of FIG. 1, 14b ... Second groove, 15 ... Plate rib.

Claims (1)

(57) [Scope of utility model registration request] 1. A cable holding structure in which a cable introduction port is opened at a portion where a casing upper case and a lower case are joined, and a cable is held by the upper and lower cases, and a terminal is provided in the casing near the cable introduction port. A base is provided, and between this terminal block and the inner wall of the housing on the cable inlet side, a horizontal portion for pressing the cable to the side surface of the terminal block and a size for inserting the cable are opened, and the cable is connected to the cable inlet port. A cable holding member that has a cable holding groove that bends up and down in the vicinity, and is fitted with a cable holding member that is held by upper and lower cases, and the cable holding groove has different opening dimensions at the upper and lower ends of the cable holding member. A cable holding structure characterized in that each is provided with.