CN105659437A

CN105659437A - Terminal device

Info

Publication number: CN105659437A
Application number: CN201480056396.XA
Authority: CN
Inventors: 藤井昌明
Original assignee: Idec Corp
Current assignee: Idec Corp
Priority date: 2013-10-24
Filing date: 2014-10-10
Publication date: 2016-06-08
Anticipated expiration: 2034-10-10
Also published as: JPWO2015060152A1; CN105659437B; JP6535599B2; WO2015060152A1

Abstract

Holding members (3) of a terminal block (1) have a plate-shaped part (31) for rotatably holding a terminal screw (2), and a sliding part (32) extending downwards from the plate-shaped part. A conductor part (4) is disposed below the plate-shaped part, and has screw holes (41). A body section (5) is provided with a wall surface part (53), first protruding parts (51), and second protruding parts (52), and is formed from a resin. A surface having a normal perpendicular to the shafts (21) of the terminal screws is provided to the wall surface part. The first and second protruding parts protrude from the wall surface part in the direction of the normal. The second protruding parts, which are plate springs, sandwich a part of the sliding parts with the first protruding parts, whereby the holding members are held so as to be capable of moving along the shafts. When a terminal screw is positioned at a set-apart position, which is set apart from the conductor part, upper recesses of the second protruding parts are brought into contact with contact parts provided to the sliding parts, temporarily preventing the downward movement of the holding members. The number of components in the terminal block can be reduced to a greater extent than that in a case in which a metal plate spring is provided.

Description

Terminal device

Technical field

The present invention relates to terminal device.

Background technology

In the past, it may also be useful to terminal screw can be stopped at the terminal device of the structure from the separation point position that conductor portion (being called terminal metal piece or conducting metal part) is separated (following, to be called: " temporary fixing structure ") temporarily. In the terminal device of interim chocking construction, the conductor portion that terminal screw remains the maintenance parts that can rotate, is formed with the threaded hole that can screw togather with terminal screw, the leaf spring formed by metal are arranged in the main body portion by resin formation. Keep parts can either keep by main body portion, can move along the direction of the axle of terminal screw again. In addition, keep parts utilize leaf spring can be stopped at temporarily from conductor part from separation point position (parts carry out the terminal device of interim stop to keeping as utilizing metal leaf spring, see, for example Japanese Unexamined Patent Publication 5-62725 publication).

In addition, in recent years, in order to seek the simplification etc. of the manufacturing process of terminal device, seek to reduce the component number of packages of terminal device.

Summary of the invention

The present invention relates to terminal device, its object is to reduce the parts number of packages of terminal device.

For the technical scheme of technical solution problem

The terminal device of the present invention has: terminal screw; Keeping parts, these maintenance parts have the sliding part described terminal screw remaining the plate-like portion that can rotate and extending to the tip side of described axle from described plate-like portion on the direction of the axle along described terminal screw; Conductor portion, this conductor portion is configured in the described tip side of described axle relative to described plate-like portion, and is formed with the threaded hole that can screw togather with described terminal screw; And main body portion, this main body portion is by resin formation, and keeps described maintenance parts and described conductor portion, and described main body portion has: the wall face being provided with the normal face vertical with described axle; And the protuberance as the leaf spring outstanding to the direction of described normal from described wall face, described maintenance parts are retained as and can move along described axle, described protuberance has interim stop portion, this interim stop portion described terminal screw be positioned at from described conductor part from separation point position time, contacting with the contact part being arranged at described sliding part, the described maintenance parts of interim prevention move to the described tip side of described axle.

According to the present invention, it is possible to reduce terminal device parts number of packages, this terminal device can make terminal screw be stopped at temporarily from conductor part from separation point position.

In a kind of optimal way of the present invention, described main body portion also has another protuberance, this another protuberance is outstanding to the direction of described normal from described wall face, and contact with described sliding part, a part for described sliding part is sandwiched between described protuberance and another protuberance described, thus described maintenance parts are retained as and can move along described axle.

In other preferred implementations of the present invention, described protuberance also has another interim stop portion, another interim stop portion described, when the approximated position that described terminal screw is positioned at described conductor portion is close, contacts and stop described maintenance parts to move to the both sides in the direction along described axle with described contact part temporarily.

In other enforcement modes of the present invention, described contact part and contacting such as upper/lower positions in described protuberance: this position be as described in normal direction central authorities and as described in wall face opposition side end between position.

In a kind of mode of the present invention, described terminal screw and described threaded hole screw togather released time, the described contact part of convex being located at described sliding part contacts with the prescribed position of described protuberance, in described protuberance, it is smooth on the direction along described axle near described prescribed position and described prescribed position.

By the detailed explanation of the present invention carried out referring to accompanying drawing, come clear and definite above-mentioned purpose and other objects, feature, mode and advantage.

Accompanying drawing explanation

Fig. 1 is the stereographic map representing switching terminal board.

Fig. 2 is the stereographic map representing terminal board.

Fig. 3 is the front view representing terminal board.

Fig. 4 is the exploded perspective view representing terminal board.

Fig. 5 is the figure amplifying the vicinity representing the 2nd protuberance and the 2nd sliding position.

Fig. 6 is the figure amplifying the vicinity representing the 2nd protuberance and the 2nd sliding position.

Fig. 7 is the figure amplifying the vicinity representing the 2nd protuberance and the 2nd sliding position.

Fig. 8 is the figure of other examples representing the 2nd protuberance.

Fig. 9 is the part sectioned view representing press button.

Figure 10 is the part sectioned view representing press button.

Figure 11 is the part sectioned view representing circuit protector.

Figure 12 is the vertical view representing circuit protector.

Nomenclature

1 terminal board

1a, 1b terminal device

2 terminal screws

3 maintenance parts

4 conductor portion

5 main body portions

21 axles

31 plate-like portions

32 sliding parts

41 threaded holes

51 first protuberances

52 the 2nd protuberances

53 wall faces

323 contact parts

Recess on the upside of in the of 521

522 underside recess

521a, 522a recess

523 regions

Embodiment

Fig. 1 is the stereographic map of the switching terminal board 10 representing an embodiment of the present invention. Switching terminal board 10 links in the prescribed direction by multiple terminal board 1. Transferring in terminal board 10 in reality, be also linked with end plate in the one end (one end with reference to the (+Z) side in Fig. 1) of the multiple terminal boards 1 linked, multiple terminal board 1 and end plate utilize stop metalwork to be arranged on DIN rail. In FIG, three mutually orthogonal directions utilize X-direction, Y-direction to illustrate with Z-direction (also identical in aftermentioned figure).

Fig. 2 is the stereographic map representing a terminal board 1, and Fig. 3 is the front view representing terminal board 1, and Fig. 4 is the exploded perspective view representing terminal board 1. Terminal board 1 as terminal device has pair of terminal screw 2, to maintenance parts 3, conductor portion 4, main body portion 5.Main body portion 5 has: the wall face 53 of thin plate shape, from wall face 53 to the normal direction (Z-direction Fig. 2 to Fig. 4 of the interarea of wall face 53, hereinafter, be called " wall face normal direction ") outstanding first protuberance 51 (another protuberance), from wall face 53 couple two protuberance 52 (protuberance) outstanding to wall face normal direction. First protuberance 51 the upper and lower of Fig. 3 in (that is, Y-direction) longer, and be configured in the central authorities of the wall face 53 in the direction, left and right (that is, X-direction) of Fig. 3. The upper and lower below illustrated to for Fig. 2 and Fig. 3 upper and lower to, direction, left and right is the direction, left and right of Fig. 3. Upper and lower is to can be different from gravity direction, and direction, left and right can be different from horizontal direction.

First protuberance 51 has: is configured in the upper side tabs 511 of upside ((+Y) side), is configured in the downside protuberance 512 of downside ((-Y) side). In the vertical direction, between upper side tabs 511 and downside protuberance 512, small gap it is provided with. Upper side tabs 511 be positioned at towards the side of (-X) side and the side towards (-X) side of downside protuberance 512 vertical with wall face 53 (above-mentioned interarea) and with upper and lower in parallel same plane. Equally, upper side tabs 511 be positioned at towards the side of (+X) side and the side towards (+X) side of downside protuberance 512 with wall face 53 vertical and with upper and lower in parallel same plane.

Each 2nd protuberance 52 is that the 2nd protuberance 52 is configured in the both sides of the first protuberance 51 by one in the lateral direction from wall face 53 leaf spring outstanding to wall face normal direction. 2nd protuberance 52 of one side is close with the side towards (-X) side of downside protuberance 512, and the 2nd protuberance 52 of the opposing party is close with the side towards (+X) side of downside protuberance 512. As shown in Figure 3, when observing terminal board 1 from (+Z) side direction (-Z) direction, each 2nd protuberance 52 to longer, is formed with, between the 2nd protuberance 52 and the side of downside protuberance 512, the gap vertically extended at upper and lower.

As shown in Figure 2, upper side tabs 511 is provided with the upside card outstanding to (+Z) side and closes protuberance 513. In addition, on the face (face of the opposition side of above-mentioned interarea) of (-Z) side of wall face 53, it is formed in the normal direction of wall face with upside card to close the upside engaging recessed part that overlaps of protuberance 513. It is provided with the downside card outstanding to (+Z) side in the bottom 54 in main body portion 5 and closes protuberance 541. The face of (-Z) side of bottom 54 is formed the downside engaging recessed part closing protuberance 541 coincidence at side, normal direction up and down, wall face card. As shown in Figure 1, when linking multiple terminal board 1, the upside card of a terminal board 1 closes protuberance 513 and downside card closes upside engaging recessed part and the downside engaging recessed part that protuberance 541 inserts another terminal board 1 respectively.

In main body portion 5, the multiple structure units comprising the first protuberance 51, the 2nd protuberance 52, wall face 53 and bottom 54 utilize resin formation to be parts, and main body portion 5 entirety has insulativity. In the terminal board 1 of Fig. 2, the position except upside card conjunction protuberance 513 of the first protuberance 51 is roughly the same with the depth of the wall face normal direction of the 2nd protuberance 52.

As shown in Figure 4, each maintenance parts 3 have plate-like portion 31, sliding part 32. Plate-like portion 31 and sliding part 32 are such as formed as parts by metal. As shown in Figures 2 and 3, terminal screw 2, expanding on vertical direction relative to upper and lower, is remained and can rotate by plate-like portion 31.In terminal board 1, plate-like portion 31 and terminal screw 2 become so-called washer screw (having the screw of packing ring). When being held in maintenance parts 3, the axle 21 of terminal screw 2 vertically extends. That is, the axle 21 of terminal screw 2 is vertical with wall face normal direction, extends along wall face 53. One pair of maintenance parts 3 is configured in the both sides of the first protuberance 51 in the lateral direction.

As shown in Figure 4, each sliding part 32 is L-shaped, has at upper and lower to (Y-direction) longer first sliding position 321, the 2nd sliding position 322 that extends to wall face normal direction (Z-direction) from the lower end of (-Y) side of the first sliding position 321. From the end close to the first protuberance 51 of plate-like portion 31 downwards, the tip side ((-Y) side) of the axle 21 namely vertically gone up along the axle 21 of terminal screw 2 extends first sliding position 321. The width ratio plate-like portion 31 of the first sliding position 321 in the normal direction of wall face is little, and the first sliding position 321 is connected with the part of wall face 53 sides of the above-mentioned end of plate-like portion 31. 2nd sliding position 322 is outstanding to the opposition side of wall face 53 from the lower end of the first sliding position 321. A part for each sliding part 32 is configured between the 2nd protuberance 52 and downside protuberance 512, contacts with both. Like this, by clamping a part for sliding part 32 between the first protuberance 51 and the 2nd protuberance 52, parts 3 are kept to be retained as and can move along axle 21. In fact, when keeping parts 3 vertically to move, sliding part 32 slides relative to the upper side tabs 511 of the first protuberance 51 and downside protuberance 512 and the 2nd protuberance 52.

Conductor portion 4 is the electroconductive component of the tabular expanded in wall face normal direction and direction, left and right (X-direction), longer in direction, left and right. The gap that conductor portion 4 is pressed between upper side tabs 511 and downside protuberance 512, is kept by main body portion 5. Being provided with two notch parts 42 (with reference to Fig. 4) in conductor portion 4, when being held in main body portion 5, the first sliding position 321 of each sliding part 32 is configured in notch part 42. By making to come limit slippage portion 32 and move to wall face normal direction between the side of notch part 42 that the first sliding position 321 is clipped in conductor portion 4 and wall face 53. As shown in Figure 3, conductor portion 4 is configured in the lower section of plate-like portion 31 and the top of the 2nd sliding position 322. When keeping parts 3 to be moved upward, the lower surface of the 2nd sliding position 322 and conductor portion 4 is to connecing, thus prevents the 2nd sliding position 322 from exceeding conductor portion 4 and being moved upward, that is, prevent sliding part 32 from departing from from the notch part 42 of conductor portion 4.

As shown in Figure 2, conductor portion 4 is formed with the double thread hole 41 that can screw togather with pair of terminal screw 2. When along upper and lower to observation, the axle 21 of each terminal screw 2 overlaps with threaded hole 41. In the normal direction of wall face, the end face of the end face of (+Z) side of conductor portion 4 and (+Z) side of the first protuberance 51 and the 2nd protuberance 52 is roughly positioned at identical position, or the position slightly by nearly (-Z) side. In other words, when being conceived to wall face normal direction, the end face of the first protuberance 51 and the 2nd protuberance 52 is positioned at outside (opposition side of wall face 53) relative to threaded hole 41.

Fig. 5 is the figure amplifying the vicinity representing the 2nd protuberance 52 and the 2nd sliding position 322, represents the 2nd sliding position 322 when terminal screw 2 is configured in the approximated position close to conductor portion 4 (position as shown in Figures 2 and 3).As shown in Figure 5, in the 2nd protuberance 52, the face relative with downside protuberance 512 (side) is formed with upside recess 521 and underside recess 522. Upside recess 521 and underside recess 522 arrange in the vertical direction. Underside recess 522 has: along with upward, and the upper lateral incline 526 that the distance between downside protuberance 512 reduces gradually; And along with downward, and the lower lateral incline 527 that the distance between downside protuberance 512 reduces gradually. Upside recess 521 has along with downward, and the lower lateral incline 524 that the distance between downside protuberance 512 reduces gradually. The upside of lower lateral incline 524 is the tabular surface of the constant distance between downside protuberance 512.

In addition, it is provided with towards the 2nd outstanding contact part 323 of protuberance 52 at the 2nd sliding position 322. As shown in Figure 4, contact part 323 is a part for the cylinder centered by the central shaft parallel with wall face normal direction. The part that contact part 323 can also be ball waits other shapes. In the example of fig. 4, contact part 323 is only configured near the top of the 2nd sliding position 322. The first sliding position 321 and the thickness of the 2nd sliding position 322 on direction, left and right are constant except contact part 323.

When terminal screw 2 is positioned at approximated position, as shown in Figure 5, the contact part 323 of convex is configured in underside recess 522. Specifically, by making contact part 323 contact with the lower lateral incline 527 of underside recess 522, interim prevention keeps parts 3 movement downwards. In addition, by making contact part 323 contact with the upper lateral incline 526 of underside recess 522, interim prevention keeps parts 3 movement upward. Like this, when terminal screw 2 is positioned at approximated position, by making the underside recess 522 of the 2nd protuberance 52 contact with contact part 323, interim prevention maintenance parts 3 both sides vertically are moved. As mentioned above, owing to contact part 323 is only configured near the top of the 2nd sliding position 322, therefore in the 2nd protuberance 52, contacting with contact part 323 in following position, this position is the position between the end (end of (+Z) side) of the central authorities of wall face normal direction and the opposition side of wall face 53.

Fig. 6 is the figure amplifying the vicinity representing the 2nd protuberance 52 and the 2nd sliding position 322, represents that terminal screw 2 is configured in from the 2nd sliding position 322 time separation point position (utilizing the position that two dot chain line represents Fig. 3) that conductor portion 4 is separated. Such as, operator are by above pushing away sharp plate-like portion 31 indicated by the solid line in figure 3, thus the 2nd protuberance 52 is bent to the direction away from downside protuberance 512 in the lateral direction, and sliding part 32 is moved upward. Thus, as shown in Figure 6, contact part 323 is configured in upside recess 521, and terminal screw 2 is positioned at separation point position. Now, by making the lower lateral incline 524 of the upside recess 521 of the 2nd protuberance 52 contact with contact part 323, interim prevention keeps parts 3 movement downwards. In addition, the 2nd sliding position 322 and conductor portion 4 is utilized to limit made holding member 3 to be moved upward. Therefore, when terminal screw 2 is positioned at separation point position, utilize downside protuberance 512, the 2nd protuberance 52 and conductor portion 4, it is possible to keep and fix and keep parts 3.

When terminal board 1 is fixed in one end of the wire by being provided with circular isobaric connecting terminal, first, by pushing to plate-like portion 31, terminal screw 2 is configured in separation point position. Next, by crimping terminal arrangement on the threaded hole 41 of conductor portion 4, terminal screw 2 is pressed into downwards together with maintenance parts 3, terminal screw 2 is configured in approximated position.Thus, crimp terminal and it is temporarily fixed on conductor portion 4. Then, by making terminal screw 2 rotate, thus terminal screw 2 and threaded hole 41 are screwed togather.

When the top of terminal screw 2 contacts and start to screw togather with threaded hole 41, as shown in Figure 7, the contact part 323 of convex is in position (following, to be called " contact position when screwing togather the beginning ") contact in the face relative with downside protuberance 512 of the 2nd protuberance 52 and the slightly downside of underside recess 522. In this face of the 2nd protuberance 52, the region 523 (comprising the region 523 of contact position when screwing togather beginning) near the downside of underside recess 522 is parallel with the side of downside protuberance 512. In the figure 7, the end face of (+Z) side of profit the 2nd protuberance 52 to the flexure of (+X) side indicated by the solid line, utilizes dotted line to represent the position of the 2nd protuberance 52 of inboardend of (-Z) side. When terminal screw 2 screws togather relative to threaded hole 41 further, terminal screw 2 and maintenance parts 3 move downwards, and contact part 323 arrives the lower section of the 2nd protuberance 52. Then, owing to terminal screw 2 and maintenance parts 3 move downwards further, crimping terminal utilizes plate-like portion 31 to crimp and fix with conductor portion 4. Thus, terminal fixing to terminal board 1 is completed to crimp.

Next, the manufacture of terminal board 1 is described. When manufacturing terminal board 1, in main body portion 5, the multiple composed components comprising the first protuberance 51, the 2nd protuberance 52 and wall face 53 utilize resin forming and are formed as parts. That is, main body portion 5 is the shaping product of resin. In fact, utilize the upper die and lower die can being separated in the normal direction of wall face, it may also be useful to the mould being formed with molding space is to form main body portion 5. Now, owing to shape is dug under not comprising by main body portion 5, therefore use the simple mould (that is, not using the mould of the complexity comprising slide core) only with upper die and lower die, just can the resin forming in realization body portion 5. Therefore, compared with the situation of the mould using the complexity comprising slide core, it is possible to utilize a multiple main body portion 5 of Mold Making. Moreover, it is possible to the production process making main body portion 5 is simplified, and also can reduce the cost of manufacture of mould. Its result is, significantly cuts down the cost of manufacture in main body portion 5. Maintenance parts 3 and the conductor portion 4 of terminal screw 2 is kept such as to be formed by punch process.

Assemble prepare main body portion 5, keep the maintenance parts 3 of terminal screw 2 and conductor portion 4 time, as shown in Figure 4, by making maintenance parts 3 mobile along wall face normal direction (from the (+Z) side direction (-Z) direction of Fig. 4) relative to main body portion 5, a part for the sliding part 32 of parts 3 is kept to be configured between the 2nd protuberance 52 and downside protuberance 512. Now, by making contact part 323 be configured in underside recess 522 (with reference to Fig. 5), maintenance parts 3 are stopped at main body portion 5 temporarily.

Next, by making conductor portion 4 move along wall face normal direction relative to main body portion 5, conductor portion 4 is pressed between the upper side tabs 511 in main body portion 5 and downside protuberance 512. Now, terminal screw 2 is positioned at approximated position, and the lower end position of terminal screw 2 is in the lower end than upper side tabs 511 closer to the position of top. Therefore, when conductor portion 4 is embedded between upper side tabs 511 and downside protuberance 512, conductor portion 4 not with terminal screw 2 to connecing. Utilize above action, complete the assembling of terminal board 1 and complete terminal board 1.

As described above, in terminal board 1,2nd protuberance 52 is formed as a synthetic resin together with wall face 53, described 2nd protuberance 52 is from wall face 53 leaf spring outstanding to wall face normal direction, and cooperates and maintenance parts 3 are remained and can vertically be moved with the first protuberance 51.In addition, when terminal screw 2 is positioned at separation point position, the upside recess 521 as interim stop portion of the 2nd protuberance 52 keeps the contact part 323 of parts 3 to contact with being located at, and interim prevention keeps parts 3 movement downwards. Like this, in terminal board 1, the leaf spring of the parts being separated with main body portion 5 is not set, terminal screw 2 just can be stopped at the separation point position being separated from conductor portion 4, it is possible to reduce the parts number of packages of the terminal board 1 of interim chocking construction temporarily. In addition, owing to shape is dug under not comprising by main body portion 5, therefore, it is possible to make the simplifying the structure of mould in shaping main body portion 5. Its result is, it is possible to reduce the manufacturing cost of terminal board 1.

In addition, when terminal screw 2 is positioned at approximated position, the underside recess 522 as another interim stop portion of the 2nd protuberance 52 contacts with contact part 323 and stops temporarily and keep parts 3 both sides vertically to move. Therefore, when assembling terminal board 1, it is possible to make maintenance parts 3 stop interim relative to main body portion 5, it is possible to easily carry out follow-up operation (conductor portion 4 fixing relative to main body portion 5).

At this, in addition, the terminal board assuming to replace the 2nd protuberance 52 and be provided with the comparative example of the leaf spring (with wall face 53 be separated) outstanding (from (-Y) side direction (+Y) direction) upward from the bottom 54 in main body portion 5. In the terminal board of comparative example, this inboardend of Distance geometry between the inboardend (end of side, bottom 54) of this leaf spring and upside recess 521 and the distance between underside recess 522 are different. Therefore, the power of the interim stop keeping parts 3 for releasing of separation point position is different from the power of the interim stop keeping parts 3 for releasing of approximated position. In addition, in the terminal board of the comparative example being separated with wall face 53 at above-mentioned leaf spring, owing to shape is dug under comprising by main body portion 5, it is thus desirable to comprise the mould of the complexity of slide core.

On the other hand, in the terminal board 1 of Fig. 2, the 2nd protuberance 52 is to the leaf spring extended to the wall face normal direction that (Y-direction) is vertical with upper and lower. Therefore, when terminal screw 2 is positioned at separation point position, the distance between the position of contact part 323 and the contact of the 2nd protuberance 52 and the inboardend (ends of wall face 53 sides) of the 2nd protuberance 52 and the distance between terminal screw 2 position that contact part 323 and the 2nd protuberance 52 contact when approximated position and this inboardend are equal. Thus, the power of the interim stop keeping parts 3 for releasing of separation point position can be roughly equal with the power of the interim stop keeping parts 3 for releasing of approximated position. In addition, as mentioned above, it is necessary, owing to digging shape under not comprising in main body portion 5, therefore, it is possible to make the simplifying the structure of mould in shaping main body portion 5. Further, in the 2nd protuberance 52, only position between the central authorities of wall face normal direction and the end of the opposition side of wall face 53 contacts with contact part 323. Consequently, it is possible to prevent the distance between position that contact part 323 contacts with the 2nd protuberance 52 and described inboardend too short, it is possible to the power of the interim stop preventing from keeping parts 3 for releasing is excessive.

In addition, when screwing togather of terminal screw 2 of releasing, the 2nd sliding position 322 being positioned at lower section compared to the 2nd protuberance 52 is moved upward, and then, contact part 323 is configured between the 2nd protuberance 52 and downside protuberance 512. Now, in the bottom in the face relative with downside protuberance 512 of the 2nd protuberance 52, it is provided with along with making and guide surface 528 (with reference to Fig. 7) that distance between downside protuberance 512 reduces gradually upward, therefore, it is possible to make contact part 323 guide from guide surface 528 to region 523 smoothly.Then, at contact part 323 to (when screwing togather in releasing, being the prescribed position contacted with contact part 323, below than contact position when screwing togather beginning slightly by the position above near, be called " contact position when screwing togather releasing ") mobile time, release screwing togather of terminal screw 2 and threaded hole 41.

On the other hand, as shown in Figure 8, the 2nd protuberance 52 relative to upper and lower to vertical face be symmetric shape other examples in, near the downside of underside recess 522, be formed with recess 523a. In this case, when terminal screw 2 moves above maintenance parts 3 due to rotation, contact position when screwing togather releasing is on the scarp of recess 523a. Therefore, after contact part 323 arrives contact position when screwing togather releasing, when stopping at once keeping parts 3 upward mobile, having the contact part 323 on the scarp of recess 523a to be exerted a force and maintenance parts 3 are moved slightly toward lower section by the 2nd protuberance 52 as leaf spring, the top of terminal screw 2 is hooked in the situation of threaded hole 41. Therefore, release based on preventing screwing togather of terminal screw 2, but terminal screw 2 unexpected fall and be hooked in the viewpoint of threaded hole 41, in the 2nd protuberance 52, it is smooth (that is, parallel with the side of downside protuberance 512) in the vertical direction that contact position when preferably screwing togather releasing contacts with this near position.

The structure of above-mentioned terminal board 1 can also be used as the terminal device of other electric components. Fig. 9 is the part sectioned view representing press button 10a. In press button 10a, it is provided with the mutually isostructural terminal device 1a of the terminal board 1 having with Fig. 2. Specifically, terminal device 1a has: pair of terminal screw 2, is to maintenance parts 3, main body portion 5 of 4, one, pair of conductors portion. Main body portion 5 has: the wall face 53 of thin plate shape, from wall face 53 first protuberance 51 outstanding to wall face normal direction, from wall face 53 couple two protuberance 52 outstanding to wall face normal direction. 2nd protuberance 52 is the leaf spring being formed as a synthetic resin together with the first protuberance 51 with wall face 53, cooperates with the first protuberance 51 and remained by maintenance parts 3 can moving axially along terminal screw 2. In addition, in terminal device 1a, terminal screw 2, keep parts 3, the 2nd protuberance 52 etc. towards different from terminal board 1, but as described later, when terminal screw 2 is positioned at separation point position, approximated position etc., keep the contact part 323 of parts 3 identical with the above-mentioned example illustrated with reference to Fig. 5 to Fig. 7 with the relation between the 2nd protuberance 52 (also identical in aftermentioned terminal device 1b).

As shown in Figure 9, when terminal screw 2 is positioned at from the separation point position that conductor portion 4 is separated, the recess 521a as interim stop portion of the 2nd protuberance 52 contacts with contact part 323, the interim movement stoping maintenance parts 3. In this condition, the crimping terminal of the one end being located at wire via being located at the opening 531 of wall face 53 or is located at the opening 532 of the side in main body portion 5 and is configured between the threaded hole 41 of conductor portion 4 and terminal screw 2. Next, by being pressed into upward together with maintenance parts 3 by terminal screw 2, thus make terminal screw 2 be configured in the approximated position close with conductor portion 4. When terminal screw 2 is positioned at approximated position, as shown in Figure 10, by making the recess 522a as another interim stop portion of the 2nd protuberance 52 contact with contact part 323, thus stop temporarily and keep parts 3 both sides vertically to move.Then, by making terminal screw 2 rotate, thus terminal screw 2 is screwed togather relative to threaded hole 41.

Figure 11 is the part sectioned view representing circuit protector 10b, and Figure 12 is the vertical view representing circuit protector 10b. In fig. 11, the partial cross section being in the circuit protector 10b clamping the position keeping parts 3 by the first protuberance 51 and the 2nd protuberance 52 is represented. Circuit protector 10b has the main body portion 5 of the internal structure of collecting circuit protector 10b. Main body portion 5 can be separated into the first base portion 5A of the downside of Figure 12 and the 2nd base portion 5B of upside. Each base portion 5A, 5B have thin plate shape wall face 53, from wall face 53 first protuberance 51 outstanding to wall face normal direction, from wall face 53 two protuberance 52 outstanding to wall face normal direction. In each base portion 5A, 5B, the 2nd protuberance 52 is formed as a synthetic resin with wall face 53 together with the first protuberance 51. On the direction, left and right of Figure 12, first protuberance 51 of base portion 5A and the 2nd protuberance 52 are located at the end in the left side of wall face 53, and first protuberance 51 of base portion 5B and the 2nd protuberance 52 are located at the end on the right side of wall face 53. It is configured with near the first protuberance 51 and the 2nd protuberance 52 and keeps parts 3. Keep parts 3 to have and terminal screw 2 is remained the plate-like portion 31 that can rotate, the sliding part 32 that face 53 sides are outstanding from plate-like portion 31 to wall. Sliding part 32 utilizes the first protuberance 51 and the 2nd protuberance 52 to remain and can vertically move. As shown in figure 11, in the lower section of each terminal screw 2, a conductor portion 4 is installed. In fig. 11, two dot chain line is utilized to represent terminal screw 2 and a part for conductor portion 4 and maintenance parts 3. In addition, in main body portion 5, it is formed with the opening 533 that can insert crimping terminal in the two sides of the left and right towards Figure 12.

In circuit protector 10b, taking main body portion 5, remain on main body portion 5 two wall faces 53 between two keep parts 3, two terminal screws 2 and two conductor portion 4 as main Structure composing terminal device 1b. In terminal device 1b, samely with terminal board 1, when terminal screw 2 is positioned at separation point position, the upside recess 521 as interim stop portion of the 2nd protuberance 52 keeps the contact part 323 of parts 3 to contact with being located at, the interim movement (with reference to Fig. 6) stoping maintenance parts 3. When terminal screw 2 is positioned at approximated position, the underside recess 522 as another interim stop portion of the 2nd protuberance 52 contacts with contact part 323, the interim movement (with reference to Fig. 5) stoping maintenance parts 3.

As mentioned above; in terminal device 1a, 1b of the circuit protector 10b of press button 10a and Figure 11 being located at Fig. 9; utilize the outstanding leaf spring (the 2nd protuberance 52) of wall face 53 from main body portion 5; the interim stop in separation point position that terminal screw 2 is being separated can be made from conductor portion 4, it is possible to reduce the parts number of packages of terminal device 1a, 1b of interim chocking construction. The structure of above-mentioned terminal board 1 and terminal device 1a, 1b can be used as the terminal device of the various electric components such as the switch of relay socket, other kinds.

Above-mentioned terminal board 1 and terminal device 1a, 1b can carry out various distortion.

Design according to terminal board 1 (with terminal device 1a, 1b), it is also possible in the sliding part 32 keeping parts 3, be formed with two contact parts arranged in the vertical direction, a recess is only set on the 2nd protuberance 52. In this case, when terminal screw 2 is positioned at separation point position, by making the contact part of a side contact with this recess, thus stop the movement keeping parts 3 vertically temporarily.In addition, when terminal screw 2 is positioned at approximated position, by making the contact part of the opposing party contact with this recess, thus stop the movement keeping parts 3 vertically temporarily.

In sliding part 32, it is also possible to the position of recessed shape, communicating pores are set to contact part. In this case, in the 2nd protuberance 52, by the position of convex being set to interim stop portion such that it is able to terminal screw 2 to be stopped at separation point position (the interim stop of approximated position is also identical) temporarily. In addition, in the 2nd protuberance 52, it is also possible to the recess of more than three is set, the interim stop in position of terminal screw 2 more than three is made.

On terminal board 1, remain keeping parts 3 and the structure of vertically movement can also utilize the parts realization different with the 2nd protuberance 52 from the first protuberance 51. Such as, when conductor portion 4 is for comparing thick plate member, utilizes the notch part 42 of conductor portion 4 and the wall face 53 in main body portion 5, maintenance parts 3 are remained and can vertically move.

In addition, in the switching terminal board 10 of Fig. 1, the terminal board 1 of desired number is linked by operator, but in above-mentioned terminal board 1, such as, the main body portion of terminal board utilizing the method for resin formation can also be used for regulation number together with wall face 53 as the 2nd protuberance 52 of leaf spring is combined in advance the fixed terminal platform of (being integrally formed). In fixed terminal platform, operator do not need to install end plate, stop metalwork in addition.

The structure of above-mentioned terminal board 1 can also be used as the terminal device of the various electric components such as switch. In addition, in terminal device, it is also possible to the terminal screw (with maintenance parts) of or more than three is set.

Can be appropriately combined as long as the structure of above-mentioned enforcement mode and each variation is not conflicting.

Specifically describe and describe invention, but above-mentioned explanation is only illustration, the present invention is not limited thereto. Therefore, as long as not departing from the scope of the present invention, it is possible to carry out various deformation.

Claims

1. a terminal device, it is characterised in that, have:

Terminal screw;

Keeping parts, these maintenance parts have the sliding part described terminal screw remaining the plate-like portion that can rotate and extending to the tip side of described axle from described plate-like portion on the direction of the axle along described terminal screw;

Conductor portion, this conductor portion is configured in the described tip side of described axle relative to described plate-like portion, and is formed with the threaded hole that can screw togather with described terminal screw; And

Main body portion, this main body portion is by resin formation, and keeps described maintenance parts and described conductor portion,

Described main body portion has:

It is provided with the wall face in the normal face vertical with described axle; And

As the protuberance of the leaf spring outstanding to the direction of described normal from described wall face,

Described maintenance parts are retained as and can move along described axle,

Described protuberance has interim stop portion, this interim stop portion described terminal screw be positioned at from described conductor part from separation point position time, contacting with the contact part being arranged at described sliding part, the described maintenance parts of interim prevention move to the described tip side of described axle.

2. terminal device according to claim 1,

Described main body portion also has another protuberance, and this another protuberance is outstanding to the direction of described normal from described wall face, and contacts with described sliding part,

A part for described sliding part is sandwiched between described protuberance and another protuberance described, thus described maintenance parts are retained as and can move along described axle.

3. terminal device according to claim 1 and 2,

Described protuberance also has another interim stop portion, another interim stop portion described, when the approximated position that described terminal screw is positioned at described conductor portion is close, contacts and stop described maintenance parts to move to the both sides in the direction along described axle with described contact part temporarily.

4. terminal device according to any one of claim 1 to 3,

Described contact part and contacting such as upper/lower positions in described protuberance: this position be as described in normal direction central authorities and as described in wall face opposition side end between position.

5. terminal device according to any one of claim 1 to 4,

Described terminal screw and described threaded hole screw togather released time, the described contact part of convex being located at described sliding part contacts with the prescribed position of described protuberance,

In described protuberance, it is smooth on the direction along described axle near described prescribed position and described prescribed position.