JP2514291Y2 - Pin jack - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a pin jack used by being attached to a receiving plate or the like provided in electric equipment.

[0002]

2. Description of the Related Art A conventional pin jack is shown in FIGS.
As shown in FIG. 2, a housing 1 in which an insulating substrate 3 having a holding plate 2 projecting from the lower portion on the back side and a plurality of cylindrical insulating bushes 4 are integrated is provided, and the outer circumference of each insulating bush 4 is grounded. The tubular portion 5a of the metal fitting 5 is fitted, and the flat plate-shaped base portion 5b of the ground metal fitting 5 is pressed by the pressing plate 8 to insulate the insulating bush 4
The upper and lower contacts 6, 7 are assembled by press-fitting the contact pieces 6a, 7a into the engaging groove 4a therein, and the protruding terminals 6b, 7b of each contact 6, 7 are fitted into the engaging grooves 2a, 2b of the holding plate 2. Then, the protruding terminals 6b and 7b are positioned and held. The tips of the grounding terminal 5c of the grounding metal 5 and the projecting terminals 6b and 7b of the contacts 6 and 7 project below the holding plate 2.

[0003]

However, in the conventional pin jack, since the lower holding plate 2 has only the engaging grooves 2a and 2b, the housing 1 is assembled with the grounding metal 5 and the contacts 6 and 7. At this time, it is necessary to orient the earth metal fitting 5 and the contacts 6 and 7 with respect to the housing 1 in a predetermined one direction, and there is a drawback that the degree of freedom is poor.
In addition, since the earth terminal 5c and the protruding terminals 6b and 7b protrude downward from the holding plate 2 of the housing 1, the earth terminal 5c and the protruding terminals 6b and 7b may be bent or deformed at the time of storage or transportation. There is a drawback in that it cannot be inserted into a predetermined hole such as a printed circuit board (not shown) due to a shift.

The object of the present invention is that the direction of the grounding metal 5 and the contacts 6, 7 with respect to the housing 1 is not limited to one direction, and the grounding terminal 5 is likely to occur during storage or transportation.
It is an object of the present invention to provide a pin jack capable of reliably preventing the bending of the c and the protruding terminals 6b and 7b and the displacement of the deformation position.

In order to achieve the above-mentioned object, the gist of the present invention as set forth in claim 1 is a symmetrical structure formed in a front plate and both holding plates arranged symmetrically to each other. A housing having a shaped accommodating portion and having an opening on the back side; an earth metal fitting having an earth terminal and a cylindrical portion projecting from a symmetrically shaped base portion accommodated in the accommodating portion and assembled to the housing; An insulating bush inserted into the tubular portion and assembled, a contact having a projecting terminal protruding outside the housing and a contact piece assembled to the insulating bush, and the holding terminal and the ground terminal Each of the holding plates is provided with respective engaging grooves symmetrically arranged corresponding to the protruding terminal, and the earth terminal and the protruding terminal can be fitted and held in the engaging groove of any one of the holding plates. Pinji According to the present invention as set forth in claim 2, in the pin jack as set forth in claim 1, a grounding terminal and a projecting terminal of another pin jack are provided in the free engagement grooves of the both holding plates. It is characterized by being inserted and protected.

[0005]

In the pin jack according to the present invention, the symmetrically shaped base portion of the grounding metal is housed in the symmetrically shaped housing portion of the housing whose rear side is open, and any one of the two holding plates in the mutually symmetrical arrangement of the housing is accommodated. Since the grounding terminal of the grounding metal and the protruding terminal of the contact are fitted and held in the engaging groove of the one holding plate, the direction of the grounding metal and the contact with respect to the housing is not limited to one direction, and the engagement of the other holding plate is not limited. A grounding terminal and a projecting terminal of another pin jack are fitted in the mating groove to protect the terminal of the other pin jack in the engaging groove, and the bending and deformation position shift of the terminal during transportation and storage are surely prevented. .

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings, taking a quadruple pin jack provided with four fitting portions into which mating pin plugs fit. 1 is a rear view showing a pin jack according to an embodiment of the present invention,
2 is a bottom view thereof, and FIG. 3 is a rear view showing a state in which two pin jacks according to the embodiment of the present invention are combined.

In the pin jack according to the embodiment of the present invention, the symmetrically shaped base portions 22 of the grounding metal fittings 21 are accommodated in the left and right accommodating portions 19 and 19 of the housing 11 which are open at the rear side, respectively. As an arbitrary one of the two holding plates 13 and 13 arranged symmetrically above and below the holding plate 11, the engaging terminals 13a, 13b and 13b of the lower holding plate 13 are connected to the grounding terminal 24 of the grounding metal fitting 21 and the contacts 41 and 5, respectively.
One protruding terminal 45, 55 is fitted and held, and the other engaging groove 13a, 13b, 1 of the upper holding plate 13 is vacant.
As shown in FIG. 3, the ground terminal 24 and the projecting terminals 45 and 55 of another pin jack having the same shape are fitted in the housing 3b and the terminals of the other pin jacks are protected by the engaging grooves 13a, 13b and 13b. Since the housing portion 19 of 11 and the base portion 22 of the grounding metal fitting 21 are both symmetrically shaped, the grounding metal fitting 21 and the contact 4 for the housing 11 are
The directionality of 1,51 is not limited to one direction.

Further, as shown in FIG. 3, this pin jack has upper engaging grooves 13a, 13b, which are provided with the ground terminal 24 and the projecting terminals 45, 55 of another pin jack.
Since it can be fitted into the terminal 13b, the deformation position shift of each terminal can be reliably prevented during transportation or storage.

FIG. 4 is a rear view showing the housing, FIG. 5 is a plan view, FIG. 6 is a view taken along the line AA of FIG. 4, and FIG. 7 is a line BB of FIG.
It is an arrow view. The housing 11 includes a front plate 12 and upper and lower holding plates 13, which are integrally provided on four sides of the front plate 12 and are parallel to each other.
It has two left and right housing portions 19, 19 which are formed symmetrically in the vertical and horizontal directions by 13 and the left and right holding plates 15, 15 and the partition portion 17 which are orthogonal to this. Front plate 1
2 has a total of four through holes 12a through which the tubular portion 25 of the grounding metal fitting 21 penetrates at a position corresponding to each of the accommodating portions 19 and 19 in a symmetrical arrangement, and the two through holes 12a. , 12a, a small protrusion 12b is provided on the inner side of the center.

Each of the upper and lower holding plates 13 and 13 is composed of one parallel slit-shaped engaging groove 13a for the ground terminal and three engaging grooves 13b and 13b for the protruding terminals which are arranged at equal intervals on the left and right sides thereof. It is provided so as to correspond to the accommodating portion 19 and to be straight and continuous. The left and right holding plates 15 and 15 are
Each of the upper and lower flat plate portions 15 is composed of an upper and lower flat plate portion 15a having a smaller depth dimension than 13 and a central semi-circular arc plate portion 15b.
a locking projection 15c is provided on the inner surface of the upper and lower flat plate portions 15a.
15d (Fig. 7)
Reference).

The partition portion 17 is provided with a central projection 18 which is provided on a central inner surface of the front plate 12 so as to project from the cylindrical body 18a and an overhanging body 18b which is vertically connected to the cylindrical body 18a, and the upper and lower holding plates 13, 13.
And a left and right partition plates 17a, 17a provided vertically on the inner surface side of the front plate 12, and a mounting hole 18c into which a mounting bolt (not shown) is inserted in the center of the central protrusion 18.
The left and right partition plates 17a are provided with locking projections 17c having the same shape as the locking projections 15c at positions corresponding to the locking projections 15c of the flat plate portion 15a.

FIG. 8 is a side view showing a part of the grounding metal part cut away, FIG. 9 is a rear view, and FIG. 10 is a bottom view. The grounding metal fitting 21 has a symmetrically shaped base portion 22 having a semicircular concave portion 12c and concave portions 22a adapted to the outer periphery of the cylindrical body 18a of the central projection 18 on both left and right sides and having a small circular hole 22b in the center.
A position adjusting plate portion 23 formed by bending the lower end of the base portion 22 accommodated in the accommodating portion 19 toward the back side, and a position adjusting plate portion 23 further bent downward at a substantially right angle from the center in the width direction to project. Ground terminal 24 and inward flange 2 at the tip
Two cylindrical portions 25 having 5a and formed in a symmetrical arrangement by projecting from the base portion 22 to the front side, and both edges of the base portion 22 are bent to the rear side at substantially right angles over the entire length to form a symmetrical shape. The ribs 26, 26 are integrally provided.

Further, the earth metal fitting 21 has two ribs 26 on each rib 26.
Engagement protrusions 2 projecting symmetrically at a total of four places
7 has a square engagement hole 27a formed therein, both edges of the engagement projection 27 are bent inward to form a guide piece 27b, and the tubular portion 25 is inserted into the through hole 12a of the front plate 12. The plate-shaped base portion 22 is housed in the housing portion 19, the small projection 12b is inserted into the small circular hole 22b, the rear end surface of the rib 26 is engaged with the locking projections 15c and 17c to prevent the ribs from coming off, and then the housing 11 is assembled. Attached.

FIG. 11 is a front view showing an insulating bush, FIG.
2 is a side view, FIG. 13 is a rear view, and FIG. 14 is CC of FIG.
It is an arrow view. The insulating bush 31 appears in a symmetrical shape in the front view and the rear view, and the tubular portion 2 of the grounding metal fitting 21.
5 is provided with an insertion portion 32 to be inserted into 5 and an engagement portion 33 integrally formed therewith, and has a plug insertion hole 31a into which a counterpart plug pin is inserted and penetrated in a concentric arrangement. Locking grooves 31b that are continuous from the side of the engaging portion 33 to an intermediate position are provided at the top and bottom of the inside. Engagement part 33
Are the engaging grooves 34 on both the left and right sides, the elastic pieces 35 formed symmetrically through the engaging grooves 34, and the plug insertion holes 3
Fitting grooves 33a formed symmetrically on both upper and lower sides of 1a
And engaging projections 35a are provided on the outer surface side of each elastic piece 35, and when the insertion portion 32 is inserted into the tubular portion 25, the engaging projections 35a of the elastic piece 35 are fitted into the engaging holes 27a. Then, the ground metal fitting 21 is prevented from being pulled out and assembled.

Further, the upper insulating bush 31 is entirely white, and the lower insulating bush 31 is entirely colored red. The two elastic pieces 35 are positioned and guided by the corresponding guide pieces 27b, and the earth metal fitting 21 is guided. Insertion part 32 in tubular part 25
When it is inserted and assembled, it can be identified by the difference in the upper and lower colors when viewed from the front outside.

FIGS. 15, 16 and 17 are front, side and plan views showing the upper contact, respectively.
8, FIG. 19 and FIG. 20 are a front view, a side view and a plan view, respectively, showing the lower contact, and these contacts 41 and 51 are substantially line-shaped except that the legs of the protruding terminals 45 and 55 are different in length. It appears in the drawing in a symmetrical relationship. The upper contact 41 includes a fork-shaped contact piece 42, and a position adjustment piece 43 and an insertion piece 44 formed by bending a base end portion of the contact piece 42 at a substantially right angle in a lateral direction and at a lower portion of the contact piece at a substantially right angle. Further, a projection terminal 45 is provided which is bent downward at a substantially right angle at the side end of the insertion piece 44 to project downward, and a protruding portion 45 of the projection terminal 45 is provided with a dogleg-shaped bent portion 46. The intermediate portion of the protruding terminal 45 is press-fitted into the engaging groove 34 of the lower insulating bush 31 to position and hold the protruding terminal 45.

Further, the upper contact 41 is the contact piece 4
The locking projections 47 are provided on both sides of the base end portion of the contact piece 42, and the reinforcing strips 4 are provided at a position near the base end of the contact piece 42, a position between the position adjusting piece 43 and the insertion piece 44, and a position near the base end of the projecting terminal 45.
8 are provided, and the contact piece 42 is
By adjusting the position of the protruding terminal 45 with respect to, and inserting the insertion piece 44 into the fitting groove 33a, the deformation of the protruding terminal 45 is prevented. The base of the contact piece 42 is provided with a semicircular protrusion 49 formed by cutting and raising in the opposite direction to the position adjusting piece 43, and the plug inserting hole 31a of the insulating bush 31 is provided with the semicircular protruding piece 49 and the position adjusting piece 43. It is almost closed at the position on the back side.

The lower contact 51 includes a contact piece 52, a position adjusting piece 53, an inserting piece 54, a protruding terminal 55, and a bent portion 5.
6, except that it has a locking projection 57 and the like, and has a relationship symmetrical with the above-mentioned upper contact 41 in the drawing except that the length of the leg of the protruding terminal 55 is shortened. I do.

The assembly sequence of the pin jack according to the above embodiment will be described. Insulating bushes 31 are inserted into the tubular portions 25 of the respective grounding fittings 21 from the back side, and the engaging projections 35a are fitted into the engaging holes 27a so as not to be pulled out. The contact pieces 42 and 52 are inserted into the plug insertion hole 31a and the locking groove 31b of the bush 31 from the rear surface side, and the locking projection 4 is inserted.
The contacts 41, 51 are attached to the corresponding insulating bushes 31, 31 by retaining them with 7, 57. At this time, each contact 4 inserted in the upper insulating bush 31
The protruding terminals 45, 45 of 1, 41 are press-fitted into the engaging grooves 34, 34 of the corresponding insulating bushes 31, 31 directly below to hold them in position.

The grounding metal fitting 21 assembled in this way
And the two insulating bushes 31 and 31 and the two contacts 41 and 51 to form an assembled unit.
The base portion 22 is pushed into the housing portion 19 and held in the housing portion 19 to a position where the locking projections 15c and 17c of the above are engaged with the rear end surfaces of the ribs 26 and 26, and the ground terminal 24 and the protruding terminals 4 are provided.
5, 55 intermediate portions of the corresponding engaging grooves 13
Then, the two sets of assembly units are fitted into the housing 11, and the assembly of the quadruple type pin jack is completed. Such a pin jack has a central protrusion 1
A bolt is inserted into the mounting hole 18c of No. 8 and screwed to a receiving plate or the like provided in an electric device (not shown).

When transporting or storing, the ground terminal 2
4 and the projecting terminals 45 and 55 are not fitted into the engaging grooves 13a, 13b and 13b of the holding plate 13 which is vacant, as shown in FIG.
4 and projecting terminals 45 and 55 are fitted to combine both pin jacks, and such a combination is performed for a required number of pin jacks, thereby protecting the ground terminal 24 and projecting terminals 45 and 55 of the other pin jacks. can do.

According to the above embodiment of the present invention, the upper and lower insulating bushes 31 and 31 are assembled to the grounding fitting 21, the contacts 41 and 51 are assembled to the upper and lower insulating bushes 31 and 31, and the housing 11 is assembled. Since all the units are assembled from the rear side, the assembling is efficient and the assembling is easy. It should be noted that the present invention is not limited to the above-described embodiment, and can be applied to a dual-type pin jack or a pin jack having six or more stations. Of course, it can be applied to a triple type in the vertical direction, and various modifications can be made without departing from the scope of the invention.

[0023]

As described above, the present invention according to claim 1 accommodates the symmetrically shaped base portion of the earth metal fitting in the symmetrically shaped housing portion of the housing, and both are symmetrically arranged in the housing. Since the ground terminal of the ground metal fitting and the protruding terminal of the contact can be fitted into any one of the engaging grooves in the holding plate, the ground metal fitting and the contact can be mounted in either direction of 180 degrees different from the housing. It has the effect of being extremely convenient as it can be installed even when facing. Further, according to the present invention as set forth in claim 2, the grounding terminal and the projecting terminal of another pin jack are fitted into the free engaging grooves of the two holding plates so that they can be protected. In this case, it is possible to surely prevent the bending of the protruding terminal and the like and the displacement of the deformation position which are likely to occur at the time of the above.

[Brief description of drawings]

FIG. 1 is a rear view showing a pin jack according to an embodiment of the present invention.

FIG. 2 is a bottom view showing a pin jack according to an embodiment of the present invention.

FIG. 3 is a rear view showing a state in which two pin jacks according to the embodiment of the present invention are combined.

FIG. 4 is a rear view showing a housing according to an embodiment of the present invention.

FIG. 5 is a plan view showing a housing according to an embodiment of the present invention.

6 is a view taken along the line AA of FIG.

FIG. 7 is a view taken along the line BB of FIG.

FIG. 8 is a side view showing a partially broken ground fitting according to an embodiment of the present invention.

FIG. 9 is a rear view showing an earth metal fitting according to an embodiment of the present invention.

FIG. 10 is a bottom view showing an earth metal fitting according to an embodiment of the present invention.

FIG. 11 is a front view showing an insulating bush according to an embodiment of the present invention.

FIG. 12 is a side view showing an insulating bush according to an embodiment of the present invention.

FIG. 13 is a rear view showing an insulating bush according to an embodiment of the present invention.

FIG. 14 is a view taken in the direction of arrows CC in FIG.

FIG. 15 is a front view showing an upper contact according to an embodiment of the present invention.

FIG. 16 is a side view showing an upper contact according to an embodiment of the present invention.

FIG. 17 is a plan view showing an upper contact according to the embodiment of the present invention.

FIG. 18 is a front view showing a lower contact according to the embodiment of the present invention.

FIG. 19 is a side view showing a lower contact according to the embodiment of the present invention.

FIG. 20 is a plan view showing a lower contact according to the embodiment of the present invention.

FIG. 21 is a rear view showing a conventional pin jack.

FIG. 22 is a sectional view showing a conventional pin jack.

[Explanation of symbols]

 Reference Signs List 11 housing 12 front plate 12a through hole 12c semicircular recess 13 holding plate 13a ground terminal engaging groove 13b protruding terminal engaging groove 15 holding plate 15a flat plate portion 15c locking protrusion 17 partition 17a partition plate 17c locking protrusion 18 Central protrusion 18a Cylindrical body 19 Housing part 21 Ground metal fitting 22 Base part 24 Ground terminal 26 Rib 27 Engagement projection piece 27a Engagement hole 27b Guide piece 31 Insulation bush 31a Plug insertion hole 31b Engagement groove 34 Engagement groove 35 Elastic piece 35a Engagement Mating protrusion 41,51 Contact 42,52 Contact piece 43,53 Position adjustment piece 44,54 Insertion piece 45,55 Projection terminal 46,56 Bent part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Bibliography Flat 2-99584 (JP, U) Real deployment Sho 61-65680 (JP, U) Real deployment Sho 57-41278 (JP, U)

Claims (2)

(57) [Scope of utility model registration request] 1. A housing having a symmetrically shaped accommodating portion formed in a front plate and both holding plates arranged symmetrically with respect to the front plate and having a rear side opening, and a symmetrical shape accommodating in the accommodating portion. A grounding metal fitting having a grounding portion and a tubular portion projecting from the base portion of the housing, which is assembled to the housing, an insulating bush inserted into the tubular portion and assembled, and a protruding terminal projecting outside the housing, A contact having a contact piece assembled to the insulating bush, the holding plates having respective engaging grooves symmetrically arranged corresponding to the ground terminal and the protruding terminal, and any one of the holding plates. A pin jack, wherein the ground terminal and the protruding terminal can be fitted and held in the engaging groove of one of the holding plates. 2. The pin jack according to claim 1, wherein a grounding terminal and a projecting terminal of another pin jack are fitted into the vacant engagement grooves of both holding plates to enable protection. Pin jack to do.