JPS5927017Y2 - Cord retention device in connection equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in a cord holding device for holding the terminal end of a cord connected to a connecting device such as a plug connector in the body of the connecting device.

Conventionally, as a means for holding a cord connected to a connecting device in the body of the connecting device, a cord holding lug having a pair of lug pieces is attached to the body of the connecting device, and the pair of lug pieces are connected. There is a known method for caulking the cord around the outer periphery of the cord, but this means is used to ensure that the cord hugging lug pieces attached to the body are caulked securely to the outer circumference of the cord. requires tools such as pliers, and since the pair of lug pieces that hold the cord face each other to form a U-shaped groove before they hold the cord, the pair of lug pieces When the lug pieces are successively bent, the tip of the lug piece that is bent first interferes with the inner surface of the other lug piece, and the lug piece may not be tightened sufficiently, resulting in a troublesome clinching operation.

The purpose of this invention is to ensure that the cord holding part that is assembled into the body of the connecting device bites into the circumferential surface of the cord's outer sheath with a simple operation without using any tools, and that it reliably maintains that state. The aim is to propose new means to become

Further, the cord holding device in the connecting device according to the present invention, which is related to this purpose, is provided on the rear end side of the metal sleeve to be assembled to the body of the connecting device, and protrudes rearward continuously and integrally with the sleeve. A pair of thin strip-shaped arms are formed to face each other, and cord holders are provided at the protruding ends of the arms to hold the cords in opposite directions. A protruding piece that bites into the outer circumferential surface of the cord is provided on each side, and an engaging hook piece that protrudes toward the side edge of the other cord holding part is installed on the side edge of one cord holding part. The present invention is characterized in that a locking portion that engages with the engagement hook is provided on the side edge of the other cord holding portion.

Next, an example of implementation will be described in detail with reference to the drawings.

In Fig. 4, reference numeral 1 denotes a metal sleeve to be assembled to the body 2 of the jack A, which is a connecting device assembled as shown in Fig. 7, and 7 denotes each connection terminal of the connection pole piece that is assembled and held in the body 2. 23... and the core wire 71... and the shield wire 71 to the connection terminal part 22 of the ground terminal piece.
The cords 50 and 60 to which the cords 7 are connected are cord holding parts that are integrally formed with the metal sleeve 1 so as to hold the outer skin end surface of the terminal part of the cord 7.

The metal sleeve 1 is formed into a cylindrical body by bending a metal plate into a cylindrical shape so that both side edges of the metal plate are abutted, and the abutted side edges form a cut 3 along the axial direction. , and is formed into an expandable and contractible cylindrical body whose diameter is expanded by forcibly opening the cuts 3 when the cuts are normally closed.

An assembly portion a is formed in an opening 11 on the front end side (left end side in FIG. 1) of the sleeve 1.

The assembly part a may be configured as appropriate, but in the illustrated embodiment, the opening 11 on the front end side of the sleeve 1 is connected to the rear end part of the body 2 (the right end part in FIG. 4). A protrusion 2 formed on the rear end of the body 2 when inserted into the outer periphery.
1.21, the guide groove 40 has a width that fits with the sleeve 1.
An engagement groove formed along the axial direction at the rear end portion and further guides the protrusion 21, 21 fitted into the guide groove 40 in the circumferential direction of the sleeve 1 as the sleeve 1 rotates. 41 is formed so as to be continuous with the guide groove 40, thereby forming the key assembly groove 4 as a whole.

Further, in the opening 10 on the rear end side of the sleeve 1, two band-like arms 5 and 6 projecting rearward (to the right in FIG. 1) from the edge of the opening 10. In FIG. 1, the metal plates forming the sleeve 1 are arranged so as to be located above and below the above-mentioned cut 3 so as to face each other vertically, and are integrally and continuously formed with the metal plates forming the sleeve 1. The above-mentioned cord holding parts 50.6 are attached to the protruding ends of the arms 5 and 6.
0 are formed in a pair to face each other so as to sandwich the cord 7 from above and below.

Cord holding parts 50 and 60 facing this pair
have protruding pieces 53, 63, etc. cut and raised on their respective opposing surfaces as shown in FIG.
・When the cord 7 held between the cord holding parts 50 and 60 is pulled in the pulling direction (to the right in FIG. 3) as shown in FIG. It is slanted and protrudes forward (to the left in Figure 3) so that it can be moved freely.

Further, on both left and right edges of one cord holding section 50, engaging hooks 51 are provided in pairs so as to protrude toward both left and right edges of the other cord holding section 60 so as to be juxtaposed in front and back. , Gah, the hook portion 51 a of each engaging hook piece 51, 51
are respectively formed in outer positions.

Furthermore, on both left and right edges of the other cord holding section 60, there are guide grooves 62 for guiding the engaging hook 51 provided on the one cord holding section 50, and a guide groove 62 for guiding the engaging hook 51 provided on the one cord holding section 50, and a guide groove 62 for guiding the engaging hook 51 provided on the one cord holding section 50. A locking portion 61 to be caught is formed.

The front and rear width of the guide groove 62 is defined as the width from the front end of the front engaging hook piece 51 to the rear end of the rear engaging hook piece 51 of the aforementioned pair of front and rear retaining hook pieces 51, 51. Approximately the same as width l.
A pair of locking hooks 51, 5 arranged in front and back.
When the hook portions 51a, 51a at the tips of the first end are inserted into the guide groove 62, the hook portions 51a, 51a are bent so as to narrow the gap 52 between the engaging hook pieces 51, 51, and the hook portions 51a, 51a are inserted into the guide groove 62.
By passing through and protruding downward, the deflection is restored,
The hook portions 51 a, 51 a at the tips are adapted to engage with the locking portion 61.

Reference numeral 8 denotes a contact piece for connecting the sleeve 1 to the connecting terminal portion 22 of the earth terminal piece protruding rearward from the body 2;
Sleeve 1 fitted with opening 11 on the rear end side of body 2
The sleeve 1 has an angled cross section and is installed on the inner circumferential surface of the sleeve 1 so as to be connected when rotated in the circumferential direction (arrow A).

Next, the process of assembling the above-mentioned components into the jack A will be explained. The sleeve 1 is inserted into the cord 7 from the opening 10 on the rear end side of the sleeve 1 in advance as shown in FIG. Core wire 71 exposed from the terminal...
・And each connection terminal part 22, 23 of the connection pole piece and the ground terminal piece which are held in the body 2 on the shield wire 71
Solder to...

Next, align the guide groove 40 of the sleeve 1 with the protrusion 21.21 of the body 2, and open the opening 1 on the front end side of the sleeve 1.
1 into the rear end of the body 2, and further rotate the sleeve 1 in the circumferential direction so that the projections 21, 21 of the body 2 and the assembly groove 4 of the sleeve 1 are engaged with each other, and the sleeve 1 is removed. is assembled into the body 2, and then the arms 5 and 6 formed in the sleeve 1 are pushed into the opposite sides, so that the cord holding parts 50 and 60 provided at the tips of the arms 50 and 60 are attached to the outer skin of the terminal part of the cord 7. The cord holding parts 50 and 6 are brought into contact with the peripheral surface so as to sandwich it from above and below.
0 firmly into the circumferential surface of the cord 7, and then tighten the cord holding part 50.
, 60's engaging hook piece 51... and the locking part 61...
. . . are engaged and assembled in the state shown by the solid line in FIG. 7, and the outer cylinder 9 is covered by insert molding as shown by the chain line in FIG. 7.

Next, to explain the function and effect, the cord holding device for the connecting device according to the present invention configured as described above is capable of holding the connected cord 7 in the body 2 of the connecting device A.
The cord holding parts 50 and 60 at the ends of the pair of arms 5 and 6, which are integrally formed in the metal sleeve 1 to be assembled into the cord 7, are inserted into the outer skin surface of the cord 7 vertically. The cord holding parts 50.
Projecting pieces 53 provided on the opposite surface side of 60..., 63
While attaching to the code 7 outer skin,
By engaging the engaging hooks 51 provided on each side edge of the cord holding portion 50, 60 with the locking portion 61 and holding them in that state, the circumferential surface of the cord 7 This is done by sandwiching the pair of cord holding parts 50 and 60 pressed against each other.
．． When pressing the cord 7 against the outer circumferential surface of the cord 7, there is no need to deform the cord holding part 50.60, and it is only necessary to press it firmly, so that the cord 7 can be held securely without making any mistakes in operation. Moreover, the cord can be tightened and held with a simple operation without the need for any tools.Furthermore, the locking hook 51 that engages when the cord holding parts 50 and 60 are pressed against the circumferential surface of the cord 7... Because the cord holding parts 50, 60 pressed against the cord 7 are held in that state by the engagement of the locking tool 61, the cord 7 can be securely connected to the connecting device without causing any loosening. It will be held at A.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the sleeve, Fig. 2 is a perspective view of the cord holding part, Fig. 3 is a side view of the state in which the cord is held, Figs. 4, 5, and 6 are explanatory diagrams of the operation. FIG. 7 is a sectional view of the jack assembled. Explanation of drawing symbols A: Connecting device (jack)
, 1... Sleeve, 10... Opening on the rear end side of the sleeve, 11... Opening on the front end side of the sleeve, 2... Body, 21...Protrusion, 22.23...Connection terminal part, 3...
... Sleeve cut, 4... Assembly groove, 40.
...Guiding groove, 41...Engagement groove, 5, 6.
... Arm, 50.60 ... Cord holding part, 51 ... Engaging hook piece, 51a ... Hook part, 52 ... Interval Department, 53.63...
Projection piece, 61... Locking portion, 62... Guide groove, 7... Cord, 71... Core wire and shield wire, L. l...Width, a...Assembly part, 8...
...Contact piece, 9...Outer cylinder.

Claims (1)

[Scope of utility model registration request] On the rear end side of the metal sleeve 1 to be assembled to the body 2 of the connecting device A, two thin strip-like arms 5 and 6, which are integrally connected to the sleeve 1 and protrude rearward, are arranged in a pair facing each other. Cord holding parts 50.60 are provided at the protruding ends of the arms 5.6 to face each other and hold the cord 7, and on the opposite sides of the cord holding parts 50.60, the cord 7 is Projecting pieces 53, 63 that bite into the outer skin circumferential surface of
. . . are respectively provided, and one cord holding section 5
A retaining hook 51.51 e is installed on the side edge of the other cord holding part 60 and protrudes toward the side edge of the other cord holding part 60. , 51. A cord holding device for a connecting device is provided with a locking portion 61.