CN1316121A

CN1316121A - Multi-screw type terminal device

Info

Publication number: CN1316121A
Application number: CN00800028A
Authority: CN
Inventors: 松田健; 真野伸之; 小川正光
Original assignee: SMK Corp
Current assignee: SMK Corp
Priority date: 1999-10-12
Filing date: 2000-03-21
Publication date: 2001-10-03
Anticipated expiration: 2020-03-21
Also published as: KR20010078688A; TW437131B; CN1130804C; KR100340736B1; JP2001110474A; WO2001028045A1

Abstract

The present invention provides a multi-screw type terminal that is improved in assembling efficiency, reduced in cost by reducing the incidence of defectives, and small-sized to take up a smaller installation space, and which comprises rotation knobs (25) each projecting from the top of a cylindrical housing (21) integrally installed on a main-body plate (20), the rotation knobs (25) being installed axially immovable with respect to the housing (21), a bar-like contact (30) that is inserted in a bar-like contact insertion hole (24) extending centrally through each rotation knob (25) such that it is non-rotatable but axially movable with respect to the rotation knob (25), a terminal plate (41) fixed on the bottom of the housing (21), and a threaded shaft (32) screwed in an internally threaded hole (46) therein, whereby rotating the rotation knob (25) rotates the bar-like contact (30) to thereby move the threaded shaft (32) axially with respect to the terminal plate (41) to cause a lead wire gripper (31) to move back and forth in the direction in which it is opposed to the terminal plate (41).

Description

Multi-screw type terminal device

Technical field

The present invention relates to a kind of multi-screw type terminal device that in stereo set, is used to connect the lead of loud speaker etc.

Background technology

Multi-screw type terminal device in the past adopts the structure of Fig. 7 to Fig. 9 mostly.This existing apparatus ties up to plate-like body plate 1 surface to have integratedly to be short tubular and to have lead at perisporium and inserts a plurality of

wire interconnecting pieces

3,3 with recess 2 ..., and be fixed with end plaste 4 in the bottom of each wire interconnecting piece 3.Inserting a center fixation in the outside has the knob 6 of rod splice, and will screw togather with the screw 8 of being located at the central part of end plaste 4 with the integrally formed spiral axial region 7 of rod splice 5.

Be formed with protruding level shape lead clamping components 9 at rod splice 5 base end sides, and spiral axial region 7 is based in its central part integratedly.Spiral axial region 7 is run through after the screw 8 of end plaste 4, make its distortion, can prevent that end plaste 4 from coming off by its leading section of conquassation.

Again, have plug insertion 10 at the top in rod splice 5, integrated by the curling reinforcing edge portion 11 and the knob 6 that are shaped flange shapely.In plug insertion 10, insert Fig. 9 shown in banana type plug 12.

End plaste 4 is fixing with

bending sheet

13,13 for having towards rear side 90 degree bending and formings around it ..., and be fixed on the entity plate 1 with the hole by this being pressed into the fixing of entity plate 1.Again, on end plaste 4, be formed with a terminal plate 14, and this terminal plate 14 is to be configured as circular-arcly, can insert and protrude in rear side from the face side of entity plate 1, and the portion of terminal 14a of front end is laterally projecting.

Aforesaid in the past the device when end plaste is installed in entity plate, owing to be face side assembling from entity plate, and will be therewith the terminal plate of one run through and protrude in rear side, therefore, during particularly laterally projecting terminal plate, must insert terminal plate circular-arcly, it is bad to pretend the industry property, and horizontal outstanding length is long more, and then this partial arc shape radius of curvature is big more, have to have problems such as profile is bigger at the outstanding big terminal plate in the back side of entity plate.

Owing to end plaste is fixed on entity plate, therefore there is the problem that corresponding pressurization operation must be arranged by making the bending sheet be pressed into patchhole again.

In addition, owing to utilize the conquassation of screw axial region to process to carry out anti-avulsion with the rod splice of knob one, particularly as multi-type in this device of the outstanding a plurality of screw axial regions in the back side of entity plate, then exist conquassation to process that operation extremely bothers and the problem of operation difference.

Again, knob is to have feeling of high class and use the higher synthetic resin material of hardness, but when rod splice being inserted centre bore and reinforcing the edge integrally by curling, knob breaks easily, has defective products incidence problem of higher.

The present invention is in view of the aforesaid variety of issue that existed in the past.Its purpose be to provide a kind of assembling work good, can reduce the defective products incidence, reduce cost, small-sized and do not occupy the multi-screw type terminal device that the place is set simultaneously.

Overview of the present invention

For solving aforesaid prior art problems, the phase purpose is given in realization, multi-screw type terminal device of the present invention constitutes at the outstanding a plurality of knobs in entity plate surface, insert logical rod splice at each knob center, this rod splice place is provided with when leading section has the plug insertion of opening integratedly at the flange shape outstanding lead clamping part of base end part, and from the outstanding spiral axial region that disposes in the center of this clamping part, and the relative terminal that has end plaste integratedly that is fixed with on above-mentioned body with above-mentioned lead clamping components with disposing, and make above-mentioned spiral axial region and be located at the screwhole spiro bonding of above-mentioned end plaste, advance above-mentioned spiral axial region by rotating above-mentioned knob spiral shell, and wire clamp can be held between above-mentioned end plaste and the lead clamping components, it is characterized in that: above-mentioned each knob is outstanding respectively from the top of the cylindrical case portion that has integratedly with above-mentioned entity plate, simultaneously this knob being installed for this housing department can't be towards moving axially, in running through the rod splice inserting hole at the center that is opened in this knob, above-mentioned rod splice installed for knob and can not rotate and can be towards moving axially, at the fixing above-mentioned end plaste in the bottom of above-mentioned housing department, make the screwhole spiro bonding of above-mentioned spiral axial region and end plaste and the spinning movement by above-mentioned knob make the rod splice rotation, and make above-mentioned spiral axial region for end plaste towards moving axially and make the above-mentioned lead clamping part can be towards advancing and retreat with the end plaste relative direction.

Again, the top of housing department is based in the entity plate face side, simultaneously that this housing department bottom side is open in the rear side of above-mentioned entity plate, and the fixing end plaste that is inserted in the bottom of this housing department from the rear side of entity plate, end plaste has a plurality of anticreep spring leafs around integratedly, and, make above-mentioned anticreep end stage portion with the card of housing department inner face and engage with spring leaf by being pressed in the housing department from the entity plate rear side; And, knob has the anticreep teat integratedly in its base end part periphery, it is inboard and become and can't move and prevent to come off towards projected direction to make this teat be connected to the open top edge portion of housing department, upper face side at the terminal board of the bottom surface of inserting this knob from the entity plate dorsal part has the prominent knob locking plate of establishing of one, limits above-mentioned knob along pushing moving of direction by this locking plate.

Example of the present invention

Below referring to figs. 1 through Fig. 6 example of the present invention is described.

20 is entity plate by resin mould among the figure.On entity plate 20, be formed with eight housing departments 21,21 of two row configurations ...This each housing department 21 forms cylindric, and top side becomes the prominent tube 21a of portion of the face side that protrudes in entity plate 20, and the bottom is open towards the inside of entity plate 20.Have the lead that can insert lead in the side of the prominent 21a of tube portion and insert mouth 22.

Center of top at the prominent 21a of tube portion forms the slotting port 23 of a knob, and the circumference system of the slotting port 22 of this knob forms flange shape outstanding knob anti-delinking part 24 from the top of the prominent 21a of tube portion towards center position.

In the prominent tube 21a of portion of housing department 21, insert the base end side of knob 25.Knob 25 is mold formed for cylindric with the synthetic resin material, forms an on-slip groove 26 at the outer peripheral face of the cylinder knob 25a of front, is shaped a flange shape stop integratedly with teat 27 in its base end part periphery simultaneously.

This knob 25 is that cylinder knob 25a forms the size in the slotting port 23 of the knob that is inserted in the housing department top with freely rotating, and the retainer of base end part forms greater than the slotting port 23 of above-mentioned knob with teat 27.

The bottom opening side of this knob 25 from entity plate 20 injected in the housing department 21, and the cylinder knob 25a of front inserted to lead in knob inserts in mouthfuls 23 and project to outside the housing department top, make retainer teat 27 be connected to the slotting port 22 of knob circumference knob anti-delinking part 24 and make its anticreep.

Offer a joint inserting hole 25 in knob 25 centers, rod splice 30 can be inserted with moving axially and be led in this hole.This rod splice 30 is to be shaped by conductive metal material, be formed with flange shape lead clamping components 31 at base end part, its upside such as Fig. 1 and shown in Figure 6, the plat part 30a of the part that the excision of linearity ground is circular is configured as the special-shaped shape that is shaped in whole total length.

On the other hand, the joint inserting hole 25b of knob 25 also forms and the identical shaped section of above-mentioned special-shaped shape in its underpart, and by above-mentioned rod splice 30 is inserted, rod splice 30 can be towards moving axially for knob 25 but can't be rotated.

On rod splice 30, spiral axial region 32 is based in the center of above-mentioned lead clamping part 31 integratedly.Have a plug insertion 34 that the end arranged at the top of rod splice 30 again.

Terminal 40 is inserted in the housing department 21 from the opening portion of the bottom surface side of entity plate 20.Terminal 40 is to conductive metal panel material shaping and punching, bending and be shaped, and comprise: be flat end plaste 41, the a pair of fixing spring sheet of erectting towards rear side squarely from one side's of subtend each other of this end plaste 41 two

edge

42,42, and the opposing party's of the subtend each other of end plaste 41 two edge from said fixing be the knob locking plate 43 that 90 degree right angles, position are erect upward with the spring leaf position, 43, and from the outstanding terminal plate 44 of the opposing party's fixing spring sheet 42 one.

On two fixing spring sheets 42, have integratedly with front end towards the outside bellying 42a of bending squarely, and terminal 40 is fixed in the housing department 21 by the terminal fixing hole 45 that this bellying 42a is inserted the prominent tube subordinate end that is located at housing department 21.In addition, two knob locking plates 43 are connected to the bottom surface of knob 25 therefrom, make these knob 25 restrictions be pressed into the action of direction and become the state that is installed in housing department with freely rotating.

Offer a screw 46 at the middle body of end plaste 41, in this screw 46, screw togather the spiral axial region 32 of rod splice 30.

When assembling the screw type terminal installation of this structure, the female screw 46 that gives the spiral axial region 32 that makes rod splice 30 earlier and end plaste 41 screws togather, it is interior and its front end is outstanding from the housing department top from the rear side of entity plate 20 knob 25 to be inserted housing department 21, then with terminal 40 in rod splice 30 is inserted housing department 21, pass through this moment fixing

spring sheet

42,42 flexibly are pressed into and insert in the housing department towards central side, in case with two

bellying

42a, 42a is pressed into terminal fixing hole 45, during 45 position, then the

fixing spring sheet

42,42 because of elastic recovery original state own, two

bellying

42a, 42a embeds

terminal fixing hole

45,45 and terminal 40 is fixing.Meanwhile, knob 25 is installed in the precalculated position.

When using this screw type terminal installation, rotary manipulation knob 25 rises rod splice 30, and leave lead clamping part 31 from end plaste 41, the lead a that on the end plaste 41 that forms thus, is connected with insertion desire in the gap of the lead clamping components 31 of rod splice 30, by rotating this knob 25 and lead a is clamped between lead clamping part 31 and the end plaste 41 towards rod splice 30 descent directions under this state, promptly finish the connection of lead a.

Make a plurality of contact springs 50 flexibly protrude in plug 51 on every side (common name banana plug point) by in the plug insertion 34 of rod splice 30, inserting to carry out the connection of plug again.

Effect of the present invention

As mentioned above, since multiple screw type terminal installation of the present invention tie up to each knob from above-mentioned entity plate The top of the cylindrical case section that has integratedly is respectively outstanding, simultaneously this knob is installed into nothing for this housing department Method is towards moving axially, in running through the rod splice inserting hole at the center that is opened in this knob with above-mentioned rod splice Install into for knob and can not rotate and can be towards moving axially, at the fixing above-mentioned end plaste in the bottom of above-mentioned housing department, Make the screwhole spiro bonding of above-mentioned spiral axial region and this end plaste, and make rod splice by the spinning movement of above-mentioned knob Rotation, and make above-mentioned spiral axial region move axially and make above-mentioned lead clamping part energy court and terminal for end plaste court Plate relative direction advance and retreat, therefore, do not need for the reinforcing edge processing of the spiral axial region anticreep of knob one And in order to bar-shaped terminal and the integrated curling reinforcing of knob edge, can when simplifying assembling work, avoid Breaking during because of the reinforcing edge produces defective products, and can reduce cost.

Again because the top of housing department is based in the entity plate face side, simultaneously with this housing department bottom side above-mentioned The rear side of entity plate is open, and fixes the end plaste that is inserted in the bottom of this housing department from the rear side of entity plate, Therefore, by only finishing each member for the assembling of entity plate, spy from the insertion operation of entity plate rear side Even be not wish will with the portion of terminal of end plaste one towards horizontal direction during long the extension, also as curved end in the past Sub-section needn't increase the size of short transverse like that, so can become compact shape.

Again, because knob has the anticreep teat integratedly in its base end part periphery, it is inboard and become and can't move and prevent to come off towards projected direction to make this teat be connected to the open top edge portion of housing department, upper face side at the terminal board of the bottom surface of inserting this knob from the entity plate dorsal part has the prominent knob locking plate of establishing of one, limit above-mentioned knob along the action that pushes direction by this locking plate, therefore, can with the fixing location of carrying out knob simultaneously of end plaste, the assembling of device is more simplified.

The accompanying drawing simple declaration

Fig. 1 is the vertical view of first embodiment of multi-screw type terminal device of the present invention.

Fig. 2 is the same partial bottom view.

Fig. 3 is the A-A profile among the Fig. 1 of the state before half expression lead clamp position of right side, half expression lead of left side connect.

Fig. 4 is the vertical view that is used for the terminal of above-mentioned first embodiment.

Fig. 5 is the same side view.

Fig. 6 is the profile of the assembly process of above-mentioned first embodiment of expression.

Fig. 7 is the vertical view of expression multi-screw type terminal device in the past.

Fig. 8 is the same side view.

Fig. 9 is the same sectional arrangement drawing.

Label declaration

20: entity plate, 21: housing department, 21a: prominent tube portion, 21b: stage portion, 22: lead inserts mouth, and 23: button is inserted port, 24: knob anti-delinking part, 25: knob, 25a: cylinder knob, 25b: joint inserting hole, 6: on-slip groove, 27: the retainer teat, 30: rod splice, 31: lead clamping components, 32: the spiral axial region, 33: knob runs through axial region, and 34: joint patchhole, 40: terminal, 41: end plaste, 42: two fixing spring sheets, 42a: two bellyings, 43: the knob retainer, 44: portion of terminal, 45: terminal fixing hole, 45: screw, 50: contact spring, 51: plug.

Claims

1. multi-screw type terminal device, constitute at the outstanding a plurality of knobs in entity plate surface, insert logical rod splice at each knob center, when described rod splice place has the plug insertion that leading section has opening integratedly at the flange shape outstanding lead clamping part of base end part, and from the outstanding spiral axial region that disposes in the center of described clamping part, and the relative terminal that has end plaste integratedly that is fixed with on described entity plate with described lead clamping components with disposing, described spiral axial region and the screwhole spiro bonding of being located at described end plaste, advance described spiral axial region by rotating described knob spiral shell, and wire clamp can be held between described end plaste and the lead clamping components, it is characterized in that:

Described each knob is outstanding respectively from the top of the cylindrical case portion that has integratedly with described entity plate, simultaneously this knob being installed for this housing department can't be towards moving axially, in running through the rod splice inserting hole at the center that is opened in this knob, described rod splice installed for knob and can not rotate and can be towards moving axially, at the fixing described end plaste in the bottom of described housing department, the screwhole spiro bonding of described spiral axial region and this end plaste, and the spinning movement by described knob makes the rod splice rotation, and make described spiral axial region for end plaste towards moving axially and make the described lead clamping part can be towards advancing and retreat with the end plaste relative direction.

2. multi-screw type terminal device as claimed in claim 1, it is characterized in that, the top of described housing department is based in the entity plate face side, described housing department bottom side is open in the rear side of described entity plate, and will be fixed in the bottom of described housing department from the end plaste that the rear side of described entity plate is inserted.

3. multi-screw type terminal device as claimed in claim 2, it is characterized in that, described end plaste has a plurality of anticreep spring leafs around integratedly, and by being pressed in the housing department from the entity plate rear side, the card that described anticreep is had with spring leaf and housing department inner face ends stage portion and engages.

4. as claim 2 or 3 described multi-screw type terminal devices, it is characterized in that, described knob has the anticreep teat integratedly in its base end part periphery, it is inboard and become and can't move and prevent to come off towards projected direction that described teat is connected to the open top edge portion of housing department, upper face side at the terminal board of the bottom surface of inserting described knob from the entity plate dorsal part has the prominent knob locking plate of establishing of one, and limits described knob along being pressed into moving of direction by described locking plate.