CN104134909B

CN104134909B - Adapter

Info

Publication number: CN104134909B
Application number: CN201410174262.XA
Authority: CN
Inventors: 小野直之
Original assignee: SMK Corp
Current assignee: SMK Corp
Priority date: 2013-05-01
Filing date: 2014-04-28
Publication date: 2016-08-31
Anticipated expiration: 2034-04-28
Also published as: JP5590358B1; CN104134909A; JP2014220040A; WO2014178209A1

Abstract

The present invention relates to adapter, it is provided that can prevent the deformation of fitting projection during plug oblique insertion socket and damage and can corresponding with multiple plug, can prevent from causing because header contact contacts the adapter of short circuit with metal strengthening part.Jack body (23) and multiple receptacle connector (24a～24e) of insulating resin it is provided with at socket (21), jack body (23) in the projecting insertion of face of the plug side front end of body (40) towards the fitting projection (22) of the chimeric recess (10) of plug (7) front openings, multiple receptacle connectors (24a～24e) make the respective contact site towards closure be exposed to single side surface (22a) part of fitting projection (22), fitting projection (22) the face formation of plug side front end with the reinforcing plate portion (42) of metallic plate cover plug side front end face to plug rib (43), and with the position consistency of desired receptacle connector (24a), make the insulation protection portion (44) that the plug side front end face of fitting projection (22) exposes.

Description

Adapter

Technical field

The present invention relates to if MicroUSB is (in recent years at most small-sized USB terminals used such as smart mobile phones Specification) adapter etc. like that, be provided with the adapter of socket, described socket connects plug.

Background technology

In the past, in order to connect the mobile electronic device terminal such as portable telephone set or smart mobile phone and charging The external equipments such as ancillary equipment or personal computer such as device, use as MicroUSB adapter etc., set There is the adapter of the plug and socket releasably connected mutually.

Constitute the socket 1 of such adapter as shown in Figure 8, Figure 9, including flat fitting projection 2 The jack body 3 of the projecting insulating resin at plug side front end face, each towards closure Each contact site be exposed to configuring side by side fitting projection 2 single side surface portion multiple receptacle connectors 4, 4 ..., and the jack shield cover 5 of the trapezoidal tubular being made up of conductive metal sheet material, jack body 3 are assembled in jack shield cover 5, form the plug of the plug side front end face opening towards jack shield cover 5 Insertion section 6.

On the other hand, plug 7 as shown in Figure 10, including the flat trapeze cross section shape being made up of insulating resin Header body 8, and by the plug shield cover 9 that constitutes of conductive metal sheet material covering its outer peripheral face, The chimeric recess 10 of square hole shape towards this socket side front end face opening is formed, chimeric recessed in header body 8 The bottom surface sections in portion 10 is set up in parallel multiple header contact 11a towards closure～11e.

Further, by being inserted in plug-inserting section 6 by plug 7, fitting projection 2 inserts plug 7 Chimeric recess 10, header contact 11a～11e and corresponding receptacle connector 4,4 ... contact, pass through Two contacts 4,11, plug 7 and socket 1 electrically connect.

But, when plug 7 and socket 1 connect, plug 7 counterpart receptacle 1 is with in the horizontal direction sometimes Oblique heeling condition is inserted, this occasion, as shown in figure 11, and the end face of metal plug shield cover 9 The plug side front end face of the resinous fitting projection of edge extruding insulation 2, worries to become plug side front end face The deformation in portion or the reason of breakage.

Then, exploitation is provided with the inserting of guard block 12 covering the side of fitting projection 2 and plug head face Seat (for example, referring to patent documentation 1).

[patent documentation 1] Japanese Unexamined Patent Publication 2010-67459 publication

But, in recent years, develop various for the electronic equipment such as portable telephone set or smart mobile phone Ancillary equipment, in plug that such ancillary equipment is connected with electronic equipment, also have for by According to the socket of electronic specifications design, do not ensure specification person.

Use such plug occasion not ensureing specification, as it has been described above, in the prior art, Mei Dangxiang Socket is repeatedly chosen/is inserted plug time, the upper limb of the plug side front end face of header contact and fitting projection 2 Portion contacts, and thus, the resin portion between header contact and the rising wood of guard block is touched by plug Head abrasion, worries that the rising wood of metal guard block is exposed to the single side surface portion of fitting projection.

Also, the rising wood of guard block is exposed to the single side surface occasion of fitting projection, as shown in figure 12, If worrying, the header contact of power supply contacts with this exposed portion, then produce short circuit, causes adapter damaged.

Summary of the invention

Then, the present invention puts forward in view of this existing problem, its object is to, it is provided that Can prevent the deformation of fitting projection during plug oblique insertion socket and damage and can corresponding with multiple plug, Can prevent from causing because header contact contacts the adapter of short circuit with metal guard block.

In order to solve the most conventional problem, it is achieved above-mentioned purpose, technical solution of the present invention 1 is recorded It is a feature of the present invention that a kind of adapter of offer, it includes the plug releasably connected mutually and inserts Seat；Being provided with the jack body of insulating resin and multiple receptacle connector at this socket, described jack body is at this The plug side front end projecting flat fitting projection of face of body, this fitting projection is inserted towards above-mentioned The chimeric recess of plug front openings, the plurality of receptacle connector makes each towards the contact of closure Portion is exposed at least single side surface portion of above-mentioned fitting projection with configuring side by side；

Plug side front end face in described fitting projection is formed:

To plug rib, cover this plug side front end face with the reinforcing plate portion of metallic plate；And

Insulation protection portion, with the position consistency of desired receptacle connector so that inserting of above-mentioned fitting projection Rostral front end face exposes.

Technical scheme 2 record it is a feature of the present invention that in the composition of technical scheme 1, above-mentioned absolutely Edge protection portion is formed the notch of the shape of one part otch in above-mentioned reinforcing plate portion, by this otch Portion makes the plug side front end face of above-mentioned fitting projection expose.

What technical scheme 3 was recorded it is a feature of the present invention that in the composition of technical scheme 2, above-mentioned Notch, integrally provided with the prominent or embedded portion of bulging shape from its inner rim so that this embedded portion is buried underground In above-mentioned fitting projection.

What technical scheme 4 was recorded it is a feature of the present invention that in any one composition of technical scheme 1 to 3 In, above-mentioned insulation protection portion is formed with the position consistency of the receptacle connector of power supply.

Technical scheme 5 record it is a feature of the present invention that in the composition of technical scheme 4, above-mentioned absolutely Edge protection portion, in addition to being formed with the position consistency of the receptacle connector of power supply, is added with earthy The position consistency of receptacle connector is formed.

What technical scheme 6 was recorded it is a feature of the present invention that in any one composition of technical scheme 1 to 5 In, it is provided with cladding plate portion below metallic plate, that cover above-mentioned fitting projection with above-mentioned contact opposition side Single side surface, plug side leading edge in cladding plate portion below this, be provided with so that above-mentioned reinforcing plate portion one The strengthening part that erects, by this strengthening part is fixed on above-mentioned jack body, configuration makes above-mentioned Reinforcing plate portion covers the above-mentioned plug side front end face of above-mentioned fitting projection.

What technical scheme 7 was recorded it is a feature of the present invention that in any one composition of technical scheme 1 to 6 In, above-mentioned reinforcing plate portion or strengthening part are assembled in above-mentioned jack body by being insert molded.

What technical scheme 8 was recorded it is a feature of the present invention that in any one composition of technical scheme 1 to 6 In, fix with sheet for above-mentioned reinforcing plate portion or strengthening part are fixed on above-mentioned jack body, add with this Strong plate portion or strengthening part are integrally provided with described fixing sheet.

The effect of the present invention is described below:

The adapter that the present invention relates to is as mentioned above, it is necessary, include the plug and socket releasably connected mutually；? This socket is provided with the jack body of insulating resin and multiple receptacle connector, and described jack body is at body The projecting insertion of face of plug side front end towards chimeric recess flat of above-mentioned plug front openings Fitting projection, the plurality of receptacle connector makes the respective contact site towards closure reveal with configuring side by side Go out at least single side surface portion to above-mentioned fitting projection；Plug side front end face shape in described fitting projection Become: to plug rib, cover this plug side front end face with the reinforcing plate portion of metallic plate；And insulation Protection portion, with the position consistency of desired receptacle connector so that the plug side front end of above-mentioned fitting projection Show out.Accordingly, because to plug rib, can prevent the deformation of fitting projection when plug is oblique to be inserted/ Breakage, meanwhile, even if because the front end rising wood of the fitting projection such as plug of repeatedly choosing/insert is ground, adds Strong plate portion upper limb is exposed to the single side surface portion occasion of fitting projection, also can keep away because being provided with insulation protection portion Exempt from desired header contact and the contact in reinforcing plate portion.

Also, in the present invention, above-mentioned insulation protection portion is formed one part otch in above-mentioned reinforcing plate portion The notch of shape, made the plug side front end face of above-mentioned fitting projection expose by this notch, because of This, can be readily formed insulation protection portion.

Further, in the present invention, at above-mentioned notch, integrally provided with the prominent or bulging shape from its inner rim The embedded portion of shape so that this embedded portion is embedded in above-mentioned fitting projection, accordingly, it is capable to be suitably formed absolutely Edge protection portion, and the reinforcing plate portion fixing intensity relative to fitting projection can be improved.

Further, in the present invention, the position consistency shape of above-mentioned insulation protection portion and the receptacle connector of power supply Become, or above-mentioned insulation protection portion is in addition to being formed with the position consistency of the receptacle connector of power supply, then Formed, accordingly, it is capable to avoid the receptacle connector of power supply plus the position consistency with earthy receptacle connector With the contact in reinforcing plate portion, short circuit can be prevented.

Also, in the present invention, it is provided with cladding plate portion below metallic plate, covers above-mentioned fitting projection With the single side surface of above-mentioned contact opposition side, plug side leading edge in cladding plate portion below this, be provided with so that The strengthening part that above-mentioned reinforcing plate portion erects integratedly, by being fixed on above-mentioned socket originally by this strengthening part Body, configuration make above-mentioned reinforcing plate portion cover above-mentioned fitting projection above-mentioned plug side front end face, therefore, Can improve plug rib and the intensity of fitting projection, and can be according to the area in following cladding plate portion or shape Shape, adjusts impedance.

Further, in the present invention, above-mentioned reinforcing plate portion or strengthening part by be insert molded be assembled in above-mentioned Jack body, accordingly, it is capable to be assembled in fitting projection by reinforcing plate portion or strengthening part suitably.

Also, in the present invention, fix with sheet for above-mentioned reinforcing plate portion or strengthening part are fixed on above-mentioned Jack body, with this reinforcing plate portion or strengthening part integrally provided with described fixing sheet, accordingly, it is capable to will Reinforcing plate portion or strengthening part are fixed on fitting projection part.

Accompanying drawing explanation

Fig. 1 is the axonometric chart of socket one example representing the adapter that the present invention relates to.

Fig. 2 is the exploded perspective view of Fig. 1 socket.

Fig. 3 is the front elevation representing the jack body in Fig. 2.

Fig. 4 is its plane graph.

Fig. 5 is its ground plan.

Fig. 6 (a) is the line A-A sectional view in Fig. 3, and Fig. 6 (b) is the line B-B sectional view in Fig. 3.

Fig. 7 is the front elevation of another example of socket representing the adapter that the present invention relates to.

Fig. 8 is the biopsy cavity marker devices side view of socket one example representing conventional adapter.

Fig. 9 is its front elevation.

Figure 10 is the front elevation representing conventional plug one example.

Figure 11 is the cross-sectional view representing plug counterpart receptacle with oblique heeling condition insert state outline.

Figure 12 is to represent that the amplification of header contact and guard block contact condition cuts in conventional adapter Face figure.

In figure, symbolic significance is as follows:

20-adapter

21-socket

22-fitting projection

23-jack body

24-receptacle connector

25-radome

26-plug-inserting section

30-fixed part

31-contact site

32-substrate connects portion of terminal

40-body

41-raised line

42-reinforcing plate portion

43-is to plug rib

44-insulation protection portion

45-insulation division

46-strengthening part

Cladding plate portion below 47-

Detailed description of the invention

Below, the embodiment of the adapter that the present invention relates to is described according to Fig. 1～embodiment illustrated in fig. 6. In the examples below, although to element, kind, combination, shape, relative configuration etc. has been made respectively Plant and limit, but, these only enumerate, and the invention is not limited in this.

Constitutor identical with above-mentioned past case is marked with same-sign and illustrates, and symbol 7 is plug.

This adapter includes plug 7 and the socket 21 releasably connected mutually, by connecting contact 7 He Socket 21, becomes electrical connection.

In the present embodiment, direction plug 7 and socket 21 interconnected, will be with as closure The horizontal direction that closure is intersected as width, using the vertical intersected with closure as Thickness direction, illustrates.

Plug 7 is identical with past case composition shown in Figure 10, cuts including the flat trapeze being made up of insulating resin The header body 8 of planar, and the barrel plug being made up of the conductive metal sheet material covering its outer peripheral face Radome 9, forms the chimeric recess 10 of square hole shape towards this socket side front end face opening in header body 8, Bottom surface sections at chimeric recess 10 is set up in parallel multiple header contact 11a towards closure～11e.

On the other hand, socket 21 as shown in Figure 1 and Figure 2, highlights including flat fitting projection 22 It is arranged on the jack body 23 of the insulating resin of the plug side front end face 40a part of body 40, respectively It is exposed to single side surface 22a of fitting projection 22 with configuring side by side from the contact site 31 towards closure Part multiple receptacle connector 24a～24e, and the trapezoidal tubular being made up of conductive metal sheet material insert Seat radome (hereinafter referred to as " radome ") 25, jack body 23 is assembled in radome 25, shape Become the plug-inserting section 26 towards plug side front end face opening.

Further, when plug 7 and socket 21 connect, by plug 7 being inserted this plug-inserting section 26, Fitting projection 22 is inserted in chimeric recess 10, corresponding header contact 11a～11e and receptacle connector 24a～ 24e becomes and contacts with each other.

Each receptacle connector 24a～24e is by being formed as one to the conductive metal sheet material bending machining of banding Body, including being embedded in the fixed part 30 of jack body 23, the contact site extended from the front end of fixed part 30 31, and it is arranged in the substrate connection portion of terminal 32 at fixed part 30 rear.

Each receptacle connector 24a～24e is by being insert molded (insert molding) and jack body 23 1 Body, each the contact site 31 towards closure is exposed to chimeric convex with equidistant spacing parallel arranging with configuring Single side surface 22a part (upper surface portion) in portion 22.

Also, each receptacle connector 24a～24e is assembled in jack body 23 so that the surface of contact site 31 becomes For the position higher than single side surface 22a of fitting projection 22 at thickness direction.

Therefore, if plug 7 and socket 21 connect, corresponding header contact 11a～11e and receptacle connector 24a～24e contacts in set position, then in header contact 11a～11e and the one side of fitting projection 22 Producing gap between the 22a of surface, the front end rising wood of fitting projection 22 and header contact 11a～11e are not Contact.

Further, the plug side front end that each receptacle connector 24a～24e is formed so that contact site 31 is positioned at embedding Close the rear slightly of the plug side front end face of protuberance 22.

Each receptacle connector 24a～24e can set purposes respectively, in the present embodiment, is arranged in width side To the receptacle connector 24a of a sidepiece be set as power supply use, be arranged in the receptacle connector 24e of the other side It is set as earthy, multiple receptacle connector 24b～24d being arranged between two receptacle connector 24a, 24e It is set as that signal transmission is used.

Jack body 23, as shown in Fig. 3～Fig. 6, is integrally formed with insulative synthetic resin, including embedding It is combined in the body 40 inside the rear portion of radome 25 and projecting before the plug side of body 40 The flat fitting projection 22 of end face 40a, by being assembled in radome 25, the plug of body 40 Side front end face 40a forms the rear end face of plug-inserting section 26, and meanwhile, fitting projection 22 is projected into plug In insertion section 26.

Fitting projection 22 is formed as tabular, in single side surface 22a partly (upper surface portion), projecting Towards multiple raised lines 41,41 ... of closure, the contact site 31 of each receptacle connector 24a～24e It is arranged between each raised line 41,41.

Also, at the plug side front end of fitting projection 22 face (hereinafter referred to as " protuberance front end face "), Plug rib 43, to plug rib 43 and insulation protection portion 44, described is added by shape by metallic plate system Strong plate portion 42 covers plug side front end face (hereinafter referred to as " protuberance front end face "), described insulation protection portion The position consistency of 44 and desired receptacle connector 24a so that protuberance front end face exposes.

The long limit in reinforcing plate portion 42 is shorter than the width length of protuberance front end face, and minor face is than protuberance front end The thickness direction length in face is short, and formation is grown crosswise rectangular-shaped, in the reinforcing plate portion 42 being assembled in protuberance end face portion Upper limb and boss surface between, i.e. at the front end rising wood of fitting projection 22, be situated between before having composition protuberance The insulation division 45 of end face portion, the upper limb becoming reinforcing plate portion 42 is not exposed to face side (upper face side).

Further, reinforcing plate portion 42 is biased against earthy receptacle connector 24e side at protuberance front end face and assembles, by This, the protuberance front end face being made up of insulating resin of power supply receptacle connector 24a side exposes, and forms insulation Protection portion 44.

Strengthening part 46 is assembled in jack body 23 by being insert molded by this reinforcing plate portion 42, and configuration makes The plug side front end face of fitting projection 22 must be covered, formed plug rib 43.

Strengthening part 46, by, bending machining die-cut to sheet metal, forms as one, and is provided with metallic plate Cladding plate portion 47 below Zhi, covers the single side surface (below) with contact opposition side of fitting projection 22, Being biased against a side of the plug side leading edge in following cladding plate portion 47, reinforcing plate portion 42 erects.

On the other hand, the position consistency in insulation protection portion 44 and desired receptacle connector 24a, i.e. join Put on the closure extended line of receptacle connector 24a, when connecting plug 7 and during socket 21, and wished The position consistency that header contact 11a corresponding for receptacle connector 24a hoped is passed through, is formed at fitting projection 22 Plug side front end face, be formed as the width width of its width ratio receptacle connector 24a and header contact 11a.

Further, the protuberance front end face of this insulation protection portion 44 insulating resin because exposing, relatively by being somebody's turn to do Header contact 11a of part, guarantees state of insulation time normal.

In the adapter so constituted, the oblique insertion of plug-inserting section 26 of plug 7 counterpart receptacle 21, The nose lip of metal plug shield cover 9 and the facial contact field, plug side front end of fitting projection 22 Closing, plug rib 43 is added by protuberance front end face because of cover with metal reinforcing plate portion 42 By force, accordingly, it is capable to prevent the deformation of fitting projection 22 or breakage of causing because of the contact of this plug 7 etc..

Also, by reinforcing plate portion 42 being set to the shape that the leading edge from following cladding plate portion 47 integrally erects, The bending endurance of the closure for plug 7 can be strengthened.

Further, by being provided with following cladding plate portion 47, thickness direction curved of fitting projection 22 can be strengthened Qu Naili, it is also possible to area or shape according to following cladding plate portion 47 carry out impedance adjustment.

On the other hand, in conventional this adapter, because using the plug 7 etc. that there is no guarantee that specification, often When plug 7 counterpart receptacle 21 is repeated and chooses/insert, header contact 11a～11e are convex with chimeric The rising wood contact of the plug side front end face in portion 22, at header contact 11a～11e, this resin portion quilt Abrasion, worries that the rising wood in reinforcing plate portion 42 is exposed to single side surface portion.And then, if this metal exposed The reinforcing plate portion 42 of system contacts with header contact 11a of power supply, then produce short circuit.

But, in the connectors of the present invention, at the front end of fitting projection 22 face, insert with desired The position consistency of seat contact 24a, is provided with insulation protection portion 44, thus, even if just in case the insulation of this part Portion 45 is worn disappearance, and metal material also will not be exposed to this part, normal by insulation protection portion 44 Time guarantee state of insulation, therefore, header contact 11a corresponding with desired receptacle connector 24a not with Metal material contacts.

Further, the position consistency of the receptacle connector 24a with power supply, form insulation protection portion 44, can keep away Header contact 11a of power-free contacts with metal material, prevents short circuit.

In the above-described embodiments, illustrate so that the width length in reinforcing plate portion 42 is short, and be biased against one Side's configuration, forms the example in insulation protection portion 44 but it also may reinforcing plate portion 42 is formed as with convex The width same length length of portion's front end face, in this reinforcing plate portion 42, with desired socket The position consistency of contact 24a, forms the notch of kerf by one part, by this notch, The protuberance front end face being made up of insulating resin is exposed, forms insulation protection portion 44.

Can be by extrusion process or cut processing etc. and form notch, at this notch, from its inner rim to Rear highlights or bulging, and the embedded portion avoiding the shape in insulation protection portion 44 is set to one, this is buried If portion is embedded in fitting projection 22.This occasion, by notch in the plug side of fitting projection 22 Front end face is suitably formed insulation protection portion 44, meanwhile, strengthens reinforcing plate portion by embedded portion the most embedding Close the fixing intensity of protuberance.

Also, in the above-described embodiments, the position consistency of receptacle connector 24a with power supply is described, convex One sidepiece of front end, portion face forms the example in insulation protection portion 44, but, the position in insulation protection portion 44 Putting and be not limited to above-described embodiment, such as, embodiment is such as shown in Figure 7, it is also possible to except with electricity The source position consistency of receptacle connector 24a, adds and the position consistency of earthy receptacle connector 24e, Form insulation protection portion 44,44.

Further, in the above-described embodiments, illustrate to be provided with and possess reinforcing plate portion 42 and following cladding plate portion 47 Strengthening part 46, by being insert molded, this strengthening part 46 is assembled in jack body 23, it is right to be formed Plug rib 43 and the example in insulation protection portion 44, but it is also possible to only rectangular-shaped by growing crosswise Reinforcing plate portion 42 is assembled in protuberance end face portion, is formed plug rib 43 and insulation protection portion 44.

Also, in the above-described embodiments, illustrate receptacle connector 24a～24e is only arranged in fitting projection The example in the single side surface portion of 22, but it is also possible to be arranged in fitting projection by the contact site of receptacle connector The two-sided portion of 22.This occasion, does not use strengthening part 46, the reinforcing plate portion that only will grow crosswise rectangular-shaped 42 are assembled in protuberance end face portion, are formed plug rib 43 and insulation protection portion 44.

Also, reinforcing plate portion 42 or strengthening part 46 to be assembled in jack body 23 (fitting projection 22) Means are not limited to be insert molded, it is also possible to reinforcing plate portion 42 or strengthening part 46 integrally provided with Fixing sheet, by by this fixing press-in being formed at jack body 23 (fitting projection 22) with sheet press-in Hole, is fixed.

Adapter of the present invention is not limited to specific standard, such as USB, Micro-USB specification etc., it is possible to To be suitable for the adapter of other any specification.

Shape and the structure of each several part shown in the above-mentioned embodiment for carrying out an invention are the most only Implement materialization one example carried out during the present invention, not because of the skill of the above-mentioned embodiment limited interpretation present invention Art scope.

Claims

1. an adapter, including the plug and socket releasably connected mutually；

Being provided with the jack body of insulating resin and multiple receptacle connector at this socket, described jack body exists The plug side front end projecting flat fitting projection of face of body, this fitting projection is inserted upward Stating the chimeric recess of plug front openings, the plurality of receptacle connector makes each connecing towards closure Contact portion is exposed at least single side surface portion of above-mentioned fitting projection with configuring side by side；

Described adapter is characterised by:

Plug side front end face in described fitting projection is formed:

2. according to the adapter described in claim 1, it is characterised in that:

Above-mentioned insulation protection portion is formed the notch of the shape of one part otch in above-mentioned reinforcing plate portion, The plug side front end face being made above-mentioned fitting projection by this notch is exposed.

3. according to the adapter described in claim 2, it is characterised in that:

At above-mentioned notch, integrally provided with the prominent or embedded portion of bulging shape from its inner rim so that should Embedded portion is embedded in above-mentioned fitting projection.

4. according to any one adapter recorded of claims 1 to 3, it is characterised in that:

Above-mentioned insulation protection portion is formed with the position consistency of the receptacle connector of power supply.

5. according to the adapter described in claim 4, it is characterised in that:

Above-mentioned insulation protection portion, in addition to being formed with the position consistency of the receptacle connector of power supply, adds Formed with the position consistency of earthy receptacle connector.

6. according to any one adapter recorded of claims 1 to 3, it is characterised in that:

It is provided with cladding plate portion below metallic plate, that cover above-mentioned fitting projection with above-mentioned contact opposition side Single side surface, plug side leading edge in cladding plate portion below this, be provided with so that above-mentioned reinforcing plate portion one The strengthening part that erects, by this strengthening part is fixed on above-mentioned jack body, configuration makes above-mentioned Reinforcing plate portion covers the above-mentioned plug side front end face of above-mentioned fitting projection.

7. according to any one adapter recorded of claims 1 to 3, it is characterised in that:

Above-mentioned reinforcing plate portion or strengthening part are assembled in above-mentioned jack body by being insert molded.

8. according to any one adapter recorded of claims 1 to 3, it is characterised in that:

Fix with sheet for above-mentioned reinforcing plate portion or strengthening part are fixed on above-mentioned jack body, add with this Strong plate portion or strengthening part are integrally provided with described fixing sheet.