JPH0623180U - Pin jack - Google Patents

Abstract

(57) [Abstract] [Purpose] The direction of assembly of members into the housing is not limited to one direction, and it is possible to reliably prevent displacement of the deformed position of the protruding terminal during transportation or the like. A symmetrically shaped housing portion 19 of a housing 11 accommodates a symmetrically shaped base portion 22 of an earth metal fitting 21, and one of the holding plates 13 of the housings 13 and 13 arranged symmetrically with respect to each other. The grounding terminal 24 of the grounding metal fitting and the protruding terminals 45, 55 of the contacts 41, 51 are fitted and held in the engaging grooves 13a, 13b, and the other engaging holes 13a, 13b of the holding plate 13 are provided with other pin jacks. The ground terminal and the projecting terminal are fitted and the terminal of the other pin jack is protected by the engaging groove.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a pin jack used by being attached to a receiving plate or the like provided in an electric device.

[0002]

[Prior art]

 As shown in FIGS. 21 and 22, a conventional pin jack is a housing in which an insulating substrate 3 having a holding plate 2 protruding from the lower rear side and a plurality of cylindrical insulating bushes 4 are integrated. 1, the cylindrical portion 5a of the grounding metal fitting 5 is fitted to the outer periphery of each insulating bush 4, the flat plate-shaped base portion 5b of the grounding metal fitting 5 is pressed by the pressing plate 8, and the locking groove 4a in the insulating bushing 4 is contacted. The upper and lower contacts 6 and 7 are assembled by press-fitting the pieces 6a and 7a, and the protruding terminals 6b and 7b of the respective contacts 6 and 7 are fitted into the engaging grooves 2a and 2b of the holding plate 2, and the protruding terminals 6b and 7b. Was positioned and held. Further, the tip ends of the grounding terminal 5c of the grounding metal 5 and the projecting terminals 6b, 7b of the contacts 6, 7 project below the holding plate 2.

[0003]

[Problems to be solved by the device]

 However, in the conventional pin jack, since the lower holding plate 2 only has the engaging grooves 2a and 2b, when the ground metal fitting 5 and the contacts 6 and 7 are assembled to the housing 1, the ground metal fitting is attached to the housing 1. 5 and the contacts 6 and 7 need to be oriented in one predetermined direction, which has the drawback of lacking in freedom. Also, the ground terminal 5c and the protruding terminals 6b and 7b protrude downward from the holding plate 2 of the housing 1. Therefore, if it is left as it is, the ground terminal 5c and the projecting terminals 6b and 7b are bent or deformed when the storage terminal is transported, and the deformed position of the ground terminal 5c cannot be inserted into a predetermined hole of a printed circuit board or the like (not shown). It was

An 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 5c and the protruding terminals 6b, 7b which are likely to occur during storage or transportation are provided. An object of the present invention is to provide a pin jack capable of reliably preventing the bending and the displacement of the deformation position of the pin jack.

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the gist of the present invention according to claim 1 is that the front plate and the holding plates formed symmetrically with respect to each other are formed in the holding plate and have a symmetrical shape. A housing having an opening on the surface side, a grounding metal fitting having a grounding terminal and a tubular portion projecting from a symmetrically shaped base portion housed in the housing portion, and assembled to the housing, and being inserted into the tubular portion. It is provided with an insulating bush to be assembled, a contact having a protruding terminal protruding to the outside of the housing and a contact piece assembled to the insulating bush, and both holding plates are symmetrically arranged corresponding to the earth terminal and the protruding terminal. A pin jack characterized in that each of them has an engaging groove, and the earth terminal and the protruding terminal can be fitted and held in the engaging groove of any one of the holding plates. Yes, claim 2 According to the present invention described in claim 1, in the pin jack according to claim 1, the grounding terminal and the projecting terminal of another pin jack are fitted into the free engagement grooves of both holding plates to enable protection. Is characterized by.

[0005]

[Action]

 The pin jack according to the present invention accommodates the symmetrically shaped base portion of the grounding metal in the symmetrically shaped housing portion of the housing which is open on the back side, and selects one of the two holding plates in the mutually symmetrical arrangement of the housing. Since the grounding terminal of the grounding metal and the projecting terminal of the contact are inserted and held in the engaging groove of the holding plate, the direction of the grounding metal and the contact with respect to the housing is not limited to one direction, and the other holding plate is engaged. A ground terminal and a projecting terminal of another pin jack are fitted in the groove, and the terminal of the other pin jack is protected by the engaging groove, and the bending and deformation position shift of the terminal during transportation and storage are surely prevented.

[0006]

【Example】

 Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings by taking a four-series pin jack having four fitting portions to which mating pin plugs are fitted as an example. 1 is a rear view showing a pin jack according to an embodiment of the present invention, FIG. 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 respectively accommodated in the left and right accommodating portions 19 and 19 of the housing 11 having an opening on the back side. As an arbitrary one of the holding plates 13, 13 arranged symmetrically above and below the housing 11, into the engaging grooves 13a, 13b, 13b of the lower holding plate 13, the earth terminal 24 of the earth metal fitting 21 and the projections of the contacts 41, 51 are projected. The terminals 45 and 55 are fitted and held, and the other grounding terminal 24 of the pin jack having the same shape as shown in FIG. 3 is inserted into the vacant engagement grooves 13a, 13b and 13b of the upper holding plate 13 as shown in FIG. The protruding terminals 45 and 55 are fitted and the terminals of the other pin jacks are protected by the engaging grooves 13a, 13b and 13b, and the housing portion 19 of the housing 11 and the base of the grounding metal fitting 21 are protected. Since both parts 22 are symmetrically shaped, the direction of the grounding metal fitting 21 and the contacts 41, 51 with respect to the housing 11 is not limited to one direction.

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

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 view taken along the line BB of FIG. The housing 11 is vertically and horizontally composed of a front plate 12 and upper and lower holding plates 13 and 13 which are integrally provided on four sides of the front plate 12 and left and right holding plates 15 and 15 which are orthogonal to the holding plates 13 and 13 and a partition portion 17. It has two left and right accommodating portions 19, 19 formed in a symmetrical shape. The front plate 12 has a total of four through holes 12a, two through which the tubular portion 25 of the base fitting 21 penetrates, at a position corresponding to each of the accommodating portions 19 and 19, and is symmetrically arranged. A small protrusion 12b is provided on the inner surface of the center between the individual through holes 12a.

Each of the upper and lower holding plates 13, 13 is a set of three parallel slit-shaped grounding terminal engaging grooves 13 a and protruding terminal engaging grooves 13 b, 13 b arranged at equal intervals on the left and right sides thereof. It is provided so as to correspond to each of the accommodating portions 19 and to be straight and continuous. The left and right holding plates 15 and 15 are composed of upper and lower flat plate portions 15a having a smaller depth than the upper and lower holding plates 13 and 13 and a central semicircular arc plate portion 15b. The locking projections 1 are formed on the inner surfaces of the upper and lower flat plate portions 15a. 5c is provided, and a cutout 15d (see FIG. 7) is formed so as to extend over a part of the upper and lower flat plate portions 15a and the semi-circular plate portion 15b.

The partition portion 17 is provided on the inner surface of the center of the front plate 12 so as to project vertically from the central projection 18 formed of a columnar body 18 a and an overhanging body 18 b connected to the upper and lower sides of the columnar body 18 a. The left and right partition plates 17a, 17a provided vertically on the inner surface of the face plate 12 are provided, and a mounting hole 18c into which a mounting bolt (not shown) is inserted is provided at the center of the central protrusion 18, and each left and right partition plate 17a is provided. A locking projection 17c having the same shape as the locking projection 15c is provided at a position corresponding to the locking projection 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 earth metal fitting 21 includes a semicircular concave portion 12c and a concave portion 22a adapted to the outer periphery of the cylindrical body 18a of the central projection 18 on both left and right sides, and a symmetrically shaped base portion 22 having a small circular hole 22b in the center, and a housing portion 19 The position adjusting plate portion 23 formed by bending the lower end of the base portion 22 accommodated in the rear side toward the rear side, and the ground protruding from the center in the width direction of the position adjusting plate portion 23 at a substantially right angle to the lower side. The terminals 24, two cylindrical portions 25 having an inward flange 25a at the tip 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 at substantially right angles over the entire length. It is integrally provided with ribs 26, 26 that are bent symmetrically toward the back side.

Further, in the grounding metal fitting 21, a square engagement hole 27 a is formed in an engaging projection piece 27 projecting in a symmetrical arrangement at two locations on each rib 26 at a total of four locations. Both edges are bent inward to form a guide piece 27b. The tubular portion 25 is inserted into the through hole 12a of the front plate 12, the plate-shaped base portion 22 is accommodated in the accommodating portion 19, and the small circular hole 22b is small. The protrusion 12b is inserted, and the rear end surface of the rib 26 is engaged with the locking protrusions 15c and 17c to prevent the ribs from coming off, and then assembled to the housing 11.

FIG. 11 is a front view showing the insulating bush, FIG. 12 is a side view, FIG. 13 is a rear view, and FIG. 14 is a view taken along the line CC of FIG. The insulating bush 31 has a symmetrical shape in the front view and the rear view, and includes an insertion portion 32 to be inserted into the tubular portion 25 of the grounding tool 21 and an engagement portion 33 integrally formed with the insertion portion 32. It has a plug insertion hole 31a through which a mating plug pin is inserted and penetrates in a concentric arrangement, and locking grooves 31b which are continuous from the side of the engaging portion 33 to an intermediate position are provided in the upper and lower parts of the plug insertion hole 31a. . The engaging portion 33 includes the engaging grooves 34 on the left and right sides, the elastic pieces 35 formed on the left and right sides through the engaging grooves 34, and the fitting pieces formed on the upper and lower sides of the plug insertion hole 31a in a symmetrical arrangement. When the engaging projection 35a is provided on the outer surface side of each elastic piece 35 and the insertion portion 32 is inserted into the tubular portion 25, the engaging projection 35a of the elastic piece 35 is provided with the groove 33a. It is fitted into 27a and is attached to the grounding metal fitting 21 without being pulled out.

The upper insulating bush 31 is entirely white, and the lower insulating bush 31 is entirely colored red. The grounding metal fitting 21 is provided while positioning both elastic pieces 35 by the corresponding guide pieces 27b. When the insertion portion 32 is inserted into the cylindrical portion 25 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 views, side views and plan views showing the upper contacts, respectively, and FIGS. 18, 19 and 20 are front views, side views and plan views showing the lower contacts, respectively. Both of these contacts 41 and 51 are shown in the drawing in a substantially line-symmetrical relationship with each other except that the legs of the protruding terminals 45 and 55 are different in length. The upper contact 41 includes a fork-shaped contact piece 42, a position adjusting piece 43 and an insertion piece formed by bending a fork-shaped contact piece 42 in a lateral direction at a base end thereof at a substantially right angle and at a lower portion thereof at a substantially right angle. 44 and a projecting terminal 45 that is bent downward at a substantially right angle at the side end of the insertion piece 44 and projects downward. A protruding portion 45 of the projecting terminal 45 has a V-shaped bent portion 46. The projection terminal 45 is positioned and held by press-fitting the intermediate portion of the projection terminal 45 into the engagement groove 34 of the insulating bush 31 below.

Further, the upper contact 41 is provided with locking protrusions 47 on both sides of the base end portion of the contact piece 42, and a portion near the base end of the contact piece 42, a portion extending between the position adjustment piece 43 and the insertion piece 44. Reinforcing strips 48 are provided near the base end of the protruding terminal 45, and the position of the protruding terminal 45 with respect to the contact piece 42 is adjusted by the position adjusting piece 43, and the insertion piece 44 is inserted 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 semi-circular projecting piece 49 formed by cutting and raising in the opposite direction to the position adjusting piece 43, and the semi-circular projecting piece 49 and the position adjusting piece 43 are used for the plug insertion hole 31a of the insulating bush 31. However, it is almost closed at the position on the back side.

The lower contact 51 has a contact piece 52, a position adjusting piece 53, an inserting piece 54, a projecting terminal 55, a bent portion 56, a locking projection 57, and the like. Except for being shortened, it has a line-symmetrical relationship with the above-mentioned upper contact 41, so that detailed description thereof will be omitted.

The assembling order of the pin jack according to the above embodiment will be described. Insulating bushes 31 are inserted into the tubular portions 25 of each earth metal fitting 21 from the back side, and the engaging projections 35a are fitted into the engaging holes 27a to prevent the insulation bushing 31 from being attached to the earth metal fittings 21 and insulated. Inserting the contact pieces 42, 52 into the plug insertion hole 31a and the locking groove 31b of the bush 31 from the rear side and retaining them with the locking projections 47, 57 to prevent the contacts 41, 51 from corresponding insulating bushes. Assemble to 31, 31. At this time, the protruding terminals 45, 45 of the respective contacts 41, 41 inserted in the upper insulating bush 31 are press-fitted into the engaging grooves 34, 34 of the corresponding insulating bushes 31, 31 directly below to be positioned and held.

The grounding metal fitting 21 thus assembled, the two insulating bushes 31 and 31, and the two contacts 41 and 51 form an assembled unit, and the locking projections 15 c and 17 c of the housing 11 are formed on the ribs 26 and 26. The base portion 22 1 is pushed into the accommodation portion 19 to a position where it is engaged with the rear side end face and is retained by being pulled out and accommodated, and the intermediate portions of the ground terminal 24 and the respective protruding terminals 45, 55 are respectively engaged with the corresponding engagement grooves 13a, 13b, 13b. Then, the two sets of the assembly units are assembled to the housing 11 to complete the assembly of the quadruple-type pin jack. The pin jack has a bolt that is inserted into the mounting hole 18c of the central protrusion 18 and is screwed to a receiving plate or the like provided in an electric device (not shown).

At the time of transportation or storage, the ground terminal 24 and the projecting terminals 45, 55 have the same shape as shown in FIG. 3 in the engaging grooves 13a, 13b, 13b of the holding plate 13 which is vacant without being fitted. By inserting the ground terminal 24 of another pin jack and the projecting terminals 45 and 55 into a combination of both pin jacks and performing such a combination for the required number of pin jacks, the ground terminal 24 of the other pin jack and The protruding terminals 45 and 55 can be protected.

According to the above-described embodiment of the present invention, the upper and lower insulating bushes 31 and 31 are assembled to the grounding fitting 21, the respective contacts 41 and 51 are assembled to the upper and lower insulating bushes 31 and 31, and the housing 11 is assembled. Assembling of the assembly unit is done from the back side, so the assembly is efficient and the assembly is easy to automate. The present invention is not limited to the above embodiment, but can be applied to a dual pin jack or six or more pin jacks. Of course, it can also be applied to a vertical triple type, and various modifications can be made without departing from the scope of the invention.

[0023]

[Effect of device]

 As described above, the present invention according to claim 1 accommodates the symmetrically shaped base portion of the grounding metal in the symmetrically shaped housing portion of the housing, and the two holding plates are symmetrically arranged in the housing. Since the grounding terminal of the grounding metal and the protruding terminal of the contact can be fitted into one of the engaging grooves, the grounding metal and the contact can be oriented in either of two directions that differ by 180 degrees with respect to the housing. It has the effect that it can be assembled and is very convenient. 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 engagement grooves of the two holding plates to enable protection, and thus the storage or storage is improved. The present invention has an excellent effect that it is possible to surely prevent the bending of the protruding terminal and the like and the displacement of the deformed position which are likely to occur during transportation.

[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 portion 17a partition plate 17c locking protrusion 18 Central protrusion 18a Cylindrical body 19 Housing portion 21 Ground metal fitting 22 Base portion 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

Claims (2)

[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 part and a tubular part projecting from the base part and assembled to the housing, an insulating bush inserted into the tubular part and assembled, and a projecting terminal projecting to the outside of 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 projecting 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 the both holding plates to enable protection. Pin jack to do.