JP2001217017A - Terminal strip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a terminal strip in which the screw thread is not damaged even in quick work by temporarily fixing them in a loosened state at the tapered shaped hole of the lid for preventing electric shock, and which can be connected effectively with Y-shaped pressure terminals and core wires of the conductor wires, and in which a round pressure terminal can be connected by taking out the screws by opening the lid, and further an free number of terminal fittings can be arranged in line to mutually connect. SOLUTION: The terminal strip comprises a plurality of terminal fittings 11, 12 which are fixed in line to the body unit 3 of insulating material and each of which terminal fittings 11, 12 is connected to the conductor wires 5 by using a screw 4. And a lid 3d having a tapered shaped hole 3a corresponding to the position of each terminal fitting 11, 12 is fixed to the body unit 3 in a closed state through a thin hinge 3c in a manner being locked with a moderate force but in free opening and shutting state, and formed in one body structure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal board, and more particularly, to a terminal board in which a screw is loosened to a certain extent so that it can be temporarily fixed in a tapered working hole of a cover for preventing electric shock. In addition to preventing damage to the screw thread during work, Y-type crimp terminals and conductive wires can be connected efficiently, and round-type crimp terminals can be connected by opening the lid and completely removing the screws. And any number of terminal fittings can be interconnected so as to be arranged in a straight line,
The present invention relates to a terminal board which is capable of displaying a terminal number on a lid integrally formed on a main body, has extremely high versatility and high wiring work efficiency, and is safe.

[0002]

2. Description of the Related Art Terminal boards are generally widely used as input / output contacts for printed wiring boards, programmable controllers, switchboards, and the like, and the types of terminals vary widely depending on the number of terminals, shapes, conductor connection forms, and the like. It can be selected and used depending on the application.

However, for example, in a terminal board of a type in which a resin is molded by electrofusion, although an electric shock is prevented, a screw for fixing a conductive wire cannot be removed. If the screw head is crushed, there is a drawback that the terminal board must be replaced. In this case, even if the Y-type crimp terminal or the core wire of the conductive wire could be connected, the round-type crimp terminal could not be connected.

Further, a guard for preventing electric shock is integrally formed on the main body of the terminal board, and a work hole through which a tool for turning a screw is passed is formed in the guard larger than the head of the screw. In a terminal board in which a cover for preventing electric shock is fitted and a work hole having a diameter larger than the head of the screw is formed in the cover, when a plurality of crimp terminals are overlapped and connected to one terminal fitting, etc. If you loosen a lot of screws, the screws may come off completely and fall off,
Even if they did not come off, they were unstable when the screws were greatly loosened, and none of them was efficient.

On the other hand, if the terminal numbers indicating the numbers of the terminal fittings are displayed in a place close to the terminal fittings, the workability is improved. A number was put or a signboard was separately attached.

In a terminal board of a type in which a cover is fitted to a main body, it is conceivable to display a terminal number on the cover. However, once the cover is removed, there is a problem that the orientation cannot be recognized at the time of mounting. The terminal number could not be displayed.

[0007] In the case of a terminal board in which a separate lid is attached to the main body of the terminal board so as to be openable and closable, the cover is usually not removed, so that the terminal number can be displayed on the cover. No cover has been provided so far, in which a work hole is formed so that a tool can be passed through the cover and a loosened screw can be temporarily fixed and stabilized.

[0008]

SUMMARY OF THE INVENTION The present invention has been made to eliminate the above-mentioned drawbacks of the prior art, and has as its object to arrange a plurality of terminal fittings in an aligned state with a body made of an insulator. In the terminal board which is fixed with and connected to the conductive wire using screws to each terminal fitting, the lid with working holes formed corresponding to the position of each terminal fitting is thin hinged When the conductive wire with the Y-type crimp terminal and the core wire of the conductive wire are wired to the terminal fittings, the tool is kept closed while the lid is closed. The screw can be turned through the work hole, and when wiring a conductive wire with a round crimp terminal, the screw can be completely removed by opening the lid and the conductive wire with a round crimp terminal can be easily removed. Can be connected to
An object of the present invention is to allow the lid to be used for both a Y-type crimp terminal and a round-type crimp terminal while being integral with the main body.

Another object of the present invention is to make it possible to completely remove the screw by opening the lid when the screw head is damaged and the screw needs to be replaced. Therefore, it is possible to minimize the loss by replacing only the screws without replacing the entire terminal board.

Still another object of the present invention is to provide a work hole having a tapered shape having a diameter gradually decreasing in a direction in which the screw is removed. By configuring the head of the screw to be tightly fitted into the work hole and temporarily fixed before the screw is removed from the terminal fitting, a plurality of Y-type crimp terminals and a core wire of a conductive wire can be connected to one place. If it is necessary to loosen a large number of screws to connect to the terminal fittings, loosening the screw head to the point where the screw is tightly fitted in the work hole will allow sufficient clearance for inserting the Y-type crimp terminal etc. To prevent the screw from being tilted or disengaged even when the Y-type crimp terminal or the like is inserted, and also to dramatically improve the efficiency of wiring work. is there.

Still another object is that, in the above configuration, the number of terminal fittings is two or three per main body, and a convex portion is formed on one side of the main body in the direction in which the terminal fittings are aligned, while the other is formed. A concave portion is formed on a side surface of the main body so as to be fitted so as not to be disengaged from the convex portion in the direction in which the convex portions are aligned with each other. And the number of terminal fittings is 2, 3, 4, 5, 6, 7,
An object of the present invention is to increase the versatility and reduce the manufacturing cost by simplifying the inventory management by configuring the combination so as to be an arbitrary number excluding 1 such as 8, 9 or the like.

Another object of the present invention is to provide, in the above structure, three lead-out holes for the terminal fitting in the main body, and in the case of a single terminal fitting having a single lead portion, the center of the lead-out hole. In the case of a two-terminal fitting having one lead and two lead portions formed, by using two rows at both ends, the main body can be used in common.

Still another object of the present invention is to allow the terminal number to be displayed on a lid integrated with the main body by the above-described structure, and to allow the terminal number to be displayed in a manner close to a corresponding terminal fitting. In order to minimize wiring errors.

[0014]

SUMMARY OF THE INVENTION In summary, the present invention (Claim 1) has a plurality of terminal fittings fixed to a body made of an insulator in an aligned state, and a conductive wire is attached to each terminal fitting by using a screw. In the terminal board configured to be connected, a lid having a work hole formed corresponding to the position of each terminal fitting is formed integrally with the main body via a thin hinge so as to be freely opened and closed. Is what you do.

Further, according to the present invention (claim 2), a plurality of terminal fittings are fixed to a body made of an insulator in an aligned state, and a conductive wire is connected to each terminal fitting using a screw. In a terminal board, a lid with a tapered working hole whose diameter gradually decreases in the direction of screw removal corresponding to the position of each terminal fitting is closed to the main body through a thin hinge to some extent. When the screw is loosened with the lid closed, the head of the screw is tightened in the work hole before the screw comes off from the terminal fitting. It is characterized in that it is configured to be fitted and temporarily fixed.

Further, according to the present invention (claim 3), two or three terminal fittings are fixed in an aligned state to a body made of an insulator, and a conductive wire is connected to each terminal fitting by using a screw. A lid having a working hole corresponding to the position of each terminal fitting is formed integrally with the body via a thin hinge so as to be openable and closable via a thin hinge, so that the terminal fitting is aligned in the alignment direction of the terminal fitting. A convex portion is formed on one side surface, and a concave portion is formed on the other side surface so as to be fitted with the convex portion so as not to be displaced in the direction in which the convex portions are aligned with each other. Are fitted so that they can be connected to each other, and can be combined so that the number of terminal fittings is an arbitrary number except 1, such as 2, 3, 4, 5, 6, 7, 8, 9 or the like. It is characterized by having done.

Further, according to the present invention (claim 4), a plurality of terminal fittings are fixed to a main body made of an insulator in an aligned state, and a conductive wire is connected to each terminal fitting using a screw. In the terminal board, a lid having a working hole corresponding to the position of each terminal fitting is formed integrally with the main body via a thin hinge so as to be openable and closable, and a lead-out hole of the terminal fitting is formed in the main body. 1 formed with one lead portion
In the case of a single terminal fitting, use the central row of the lead holes,
In the case of a two-terminal metal fitting having two lead portions, it is characterized in that two rows at both ends are used.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments shown in the drawings. A terminal board 1 according to the present invention comprises a plurality of terminal fittings 11 or terminal fittings 12 fixed to a main body 3 made of an insulator in an aligned state in FIGS. 1 to 5 and FIGS. 8 to 11. The conductive wire 5 is connected to the metal fittings 11 and 12 by using the screw 4, and the lid 3 b having the working holes 3 a corresponding to the positions of the respective terminal metal fittings 11 and 12 is connected to the thin hinge 3 c. The main body 3 is formed integrally with the main body 3 so as to be openable and closable.

The terminal fitting 11 serves as an electrical connection point of the conductive wire 5, and as shown in FIG. 5, for example, a brass plate is bent to form one lead portion 11a. It is a manufactured one-piece terminal fitting, and two or three pieces are pressed into the main body 3 in an aligned state. As shown in FIG. 3, the terminal fitting 12 is a two-piece terminal fitting formed with two lead portions 12a.

The main body 3 is made of an insulator,
For example, PBT (polybutylene terephthalate resin) is used as the material. PBT is an engineering plastic having high insulation properties and heat resistance that enables continuous use at 120 to 140 ° C, and a thermal decomposition start temperature exceeding 340 ° C.

Partitions 3d are formed between the adjacent terminal fittings 11 and 12 and at both ends of the terminal fittings 11 and 12 in the alignment direction, and hinges 3c are formed at the back of each partition 3d. The lid 3b is integrally formed via the hinge. Protrusions 3f are formed on the front side of each partition 3d to lock the bent locking portions 3e of the lid 3b when the lid 3b is closed.

The working hole 3a formed in the lid 3b is for passing a tool 6 such as a driver so that the screw 4 can be loosened or tightened with the lid 3b closed. As shown in FIGS. 1 to 3, a cylinder protruding, for example, about 3 to 5 mm in a tapered shape in which the diameter gradually decreases in the direction in which the screw 4 is removed, and in the direction toward the screw 4 when the lid 3 b is closed. For example, three positions are formed corresponding to the number of the terminal fittings 11 and 12, and the center of the working hole 3 a substantially coincides with the center of the screw 4. When the number of the terminal fittings 11 and 12 is two, the work hole 3a
Is also two places.

The bent locking portion 3e of the lid 3b is for closing the lid 3b by being locked to the projection 3f of the main body 3. When the lid 3b is closed, the front surface 3 of the main body 3 is closed.
It is formed in a downward arc shape over the entire length of one side on the g side. Note that the inner curvature of the bending engagement portion 3e and the curvature of the protrusion 3f are set to be substantially equal.
This is because the lid 3b is locked with a certain force in the closed state.

As shown in FIGS. 3 to 5, the lead portions 11a, 12a of the terminal fittings 11, 12 are provided on the bottom surface 3h of the main body 3.
are formed in three places, that is, three rows per mounting position of one of the terminal fittings 11 and 12, so that one lead 11a is formed. In the case of the terminal fitting 11, each lead portion 11a is led out from one central row of the lead holes, and in the case of the terminal fitting 12 having two lead portions 12a, each lead portion is drawn from two rows at both ends. 12a is derived.

A convex portion 3k is formed on one side surface 3j of the main body 3 in the alignment direction of the terminal fittings 11 and 12, and the other side surface 3m is not displaced from the convex portion 3k in the direction of alignment with each other. A concave portion 3n is formed so as to fit into the main body 3. The convex portion 3k or the concave portion 3n of another main body 3 is fitted on both sides of the main body 3 so as to be connectable to each other. As a result, the number of terminal fittings 11 and 12 becomes 2, 3, 4, 5, 6, 7,
Combinations can be made so as to be an arbitrary number excluding 1 such as 8, 9 or the like.

As shown in FIGS. 1 and 4, the convex portion 3k and the concave portion 3n are each formed in a trapezoidal cross section whose longitudinal direction is parallel to the direction in which the screw 4 is removed.
A so-called dovetail structure is formed in which the members are fitted in such a manner that they do not come off in the direction of their alignment by being fitted while sliding in the longitudinal direction.

A screw 4 to which a spring washer 8 and a holding plate 9 are attached one by one is screwed into each of the terminal fittings 11 and 12. The total thickness of the spring washer 8 and the holding plate 9 is, for example, about 2 mm, and the length under the neck of the screw 4 is, for example, 8 to 10 mm. This is shown in FIG.
With the screw 4 loosened in the direction of arrow C until the head 4a of the screw 4 fits into the work hole 3a, the terminal fitting 2
The distance L from the holding plate 9 to the terminal fitting 2 is about 5 m while leaving the screwing length of the screw 4 with respect to about 2 to 2.5 mm.
m, so that a 1.2 mm thick Y
The three mold crimp terminals 14 can be inserted in an overlapping manner.

The present invention is configured as described above,
Hereinafter, the operation will be described. Terminal board 1 according to the present invention
As shown in FIG. 6, since the lid 3b is attached by a thin hinge 3c, the lid 3b can be opened in the direction of arrow A from the closed state and closed in the direction of arrow B to be in the closed state. It is.

In the closed state, since the bent locking portion 3e of the lid 3b is locked to the projection 3f with a certain force, the lid 3b does not open naturally, and is not opened by the operator (not shown). Electric shock can be prevented.

Since the cover 3b is formed with the working hole 3a, as shown in FIGS. 5 and 9, even if the cover 3b is in the closed state, the tool 6 can be passed through the working hole 3a. The screw 4 can be loosened or tightened. If the conductive wire 5 with the Y-type crimp terminal 14 or the conductive wire 5 with the core wire 5a exposed, wiring is performed with the lid 3b closed. can do.

As shown in FIG. 7, when the cover 3b is closed and the screw 4 is loosened in the direction of arrow C, the head 4a of the screw 4
Is tightly fitted into the tapered working hole 3a, and the screw 4 is temporarily fixed. At this time, the distance L from the holding plate 9 to the terminal fitting 11 is about 5 mm.
Since the thickness of the Y-type crimp terminal 14 is 1.2
mm, the three Y-type crimp terminals 14 can be overlapped and connected to one terminal fitting 2.

Even if the head 4a of the screw 4 is fitted into the work hole 3a, the screwing length of the screw 4 with respect to the terminal fitting 2 is still about 2 mm.
mm, the Y-type crimp terminal 14 or the like is stable without being shaken even if it is inserted with a strong force, and wiring work is very easy.

Since the screw 4 is screwed into the terminal fitting 2, if the screw 4 is turned in the tightening direction, the working hole 3
a, the fixed state of the head 4a of the screw 4 is immediately released,
If further tightened, the inserted Y-type crimp terminal 14
Etc. can be tightened and fixed.

When wiring the conductive wire 5 with the round crimp terminal 13, it is necessary to completely remove the screw 4 once, but as shown in FIG.
Directly insert the screw 4 into the arrow C without passing the tool 6 through the work hole 3a.
Since the screw 4 can be loosened in the direction, the conductive wire 5 with the round crimp terminal 13 can be wired by completely removing the screw 4.

On the side surface 3j of the main body 3, a convex portion 3k is provided.
m, the concave portions 3n are respectively formed.
As shown in FIGS. 10 and 11, for example, the terminal fitting 12 is
Two-terminal type terminal board 1 and terminal fitting 12
Can be connected to the three-terminal type terminal board 1 to which three are attached so as not to come off in the direction in which they are aligned with each other.

In this case, five terminal fittings 12 are provided.
(Or terminal fittings 11) can be any number of two or more. For example, when the number of the terminal fittings 12 is eight, two three-terminal terminal boards 1 and one two-terminal terminal board 1 may be prepared and connected.

The lid 3b is formed integrally with the main body 3 and is not detached from the main body 3, so that although not shown, the terminal number can be indicated on the lid 3b by engraving or sealing. In this case, the terminal number approaches each of the terminal fittings 12 (or the terminal fittings 11), so that the terminal numbers can be easily viewed.
An error such as a wrong wiring location can be prevented from occurring.

[0038]

According to the present invention, a plurality of terminal fittings are fixed to a body made of an insulator in an aligned manner as described above, and a conductive wire is connected to each terminal fitting using a screw. In the terminal board, a lid having a working hole corresponding to the position of each terminal fitting is formed integrally with the main body via a thin hinge so as to be openable and closable, so that a conductive wire with a Y-type crimp terminal is provided. When wiring conductors or conductive wires to terminal fittings, the tool can be passed through the work hole with the lid closed and the screw can be turned, and when wiring conductive wires with round crimp terminals , The screw can be completely removed by opening the lid, and the conductive wire with the round crimp terminal can be easily connected, and the Y-crimp terminal and the round crimp terminal while the lid is integrated with the main body Can be used for both Bought effect is obtained.

Further, according to the above configuration, when the screw head is damaged and the screw needs to be replaced, the screw can be completely removed by opening the lid. As a result, it is possible to solve the problem by replacing only the screws without replacing the entire terminal board.

Further, in the above configuration, the working hole is formed in a tapered shape whose diameter gradually decreases in the direction in which the screw is removed, and when the screw is loosened with the lid closed, the screw is removed from the terminal fitting. Since the head of the screw is tightly fitted into the working hole and temporarily fixed before the screw is removed, a plurality of Y-type crimp terminals and conductive wires are connected to one terminal fitting. If it is necessary to loosen a large number of screws in order to do so, if the head of the screw is loosened to the point where it is tightly fitted into the work hole, it is possible to secure a sufficient space for inserting the Y-type crimp terminal etc. The screw can be prevented from being tilted or disengaged even when the Y-type crimp terminal or the like is inserted. As a result, the efficiency of wiring work can be significantly improved. effective.

In the above arrangement, the number of the terminal fittings is set to two or three per one body, a convex portion is formed on one side surface of the main body in the alignment direction of the terminal fittings, and the convex portion is formed on the other side surface. A concave portion having a shape that fits so as not to come off in the alignment direction with the portion is formed, and a convex portion or a concave portion of another main body is fitted on both sides of the main body so that they can be connected to each other. 1 such as 2,3,4,5,6,7,8,9
Are configured so that they can be combined in an arbitrary number excluding, so that versatility can be enhanced, manufacturing costs can be reduced, and inventory management can be facilitated.

In the above configuration, the lead-out holes of the terminal fittings are formed in three rows in the main body, and one lead portion is formed.
In the case of a single terminal fitting, use the central row of the lead holes,
In the case of a two-terminal metal fitting having two lead portions, since two rows at both ends are used, there is an effect that the main body can be used in common.

Further, according to the above configuration, there is an effect that the terminal number can be displayed on the lid integrated with the main body. As a result, the terminal number can be displayed close to the corresponding terminal fitting so that a wiring error can be prevented. There is an effect that it can be minimized.

[Brief description of the drawings]

FIG. 1 is a perspective view of a terminal board with a cover opened.

FIG. 2 is a perspective view of a terminal board with a lid closed.

FIG. 3 is a longitudinal sectional view of a terminal board in a state where a terminal fitting having two leads is attached and a lid is closed.

FIG. 4 is a perspective view of the terminal board with the lid closed as viewed from below.

FIG. 5 is a longitudinal sectional view showing a terminal board in a state where a terminal fitting having one lead portion is attached and a lid is closed and a screw is loosened by a tool.

FIG. 6 is an enlarged side view of a main part showing an open state and a closed state of a lid.

FIG. 7 is an enlarged longitudinal sectional view of a main part showing a state where a head of a loosened screw is fitted into a work hole of a lid.

FIG. 8: Open the lid, completely remove the screw with a tool,
It is a perspective view which shows the state which connects the conductive wire with a round crimp terminal.

FIG. 9: With the lid closed, loosen the screw with a tool,
It is a perspective view which shows the state which connects the conductive wire with a crimp terminal or a bare conductive wire.

FIG. 10 is a perspective view showing a state in which a protrusion of a two-terminal type terminal board and a recess of a three-terminal type terminal board are fitted to each other to connect the two-terminal type terminal board and the three-terminal type terminal board. It is.

FIG. 11 is a partial vertical cross-sectional view showing a state in which a protrusion of a two-terminal terminal board and a recess of a three-terminal terminal board are fitted to each other to connect the two-terminal terminal board and the three-terminal terminal board. It is a front view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Terminal board 3 Main body 3a Working hole 3b Lid 3c Hinge 3i Lead-out hole 3k Convex part 3n Concave part 4 Screw 5 Conductive wire 11 Terminal fitting 11a Lead part 12 Terminal fitting 12a Lead part

Claims (4)

[Claims] In a terminal board, a plurality of terminal fittings are fixed to a body made of an insulator in an aligned state, and a conductive wire is connected to each of the terminal fittings using screws. A terminal board, wherein a lid having a working hole corresponding to a position of the terminal fitting is formed integrally with the main body via a thin hinge so as to be freely opened and closed. 2. A terminal board in which a plurality of terminal fittings are fixed to a main body made of an insulator in an aligned state, and each of said terminal fittings is connected to a conductive wire using a screw. In a closed state, the lid having a tapered working hole having a diameter gradually reduced toward the direction in which the screw is removed corresponding to the position of the terminal fitting is engaged with the main body through a thin hinge with a certain force. When the screw is loosened with the lid closed, the head of the screw is tightened in the working hole before the screw comes off from the terminal fitting. A terminal board characterized by being configured to be fitted and temporarily fixed. 3. A structure in which two or three terminal fittings are fixed to a main body made of an insulator in an aligned state, and a conductive wire is connected to each of the terminal fittings using a screw. A lid having a working hole formed corresponding to the position of the terminal fitting is formed integrally with the main body via a thin hinge so as to be freely openable and closable, and one side surface of the main body in an alignment direction of the terminal fitting. A convex portion is formed on the other side surface, and a concave portion having a shape is formed on the other side surface so as not to be disengaged with the convex portion in the direction of alignment with each other. The recesses are fitted so that they can be connected to each other, and the terminal fittings can be combined so that the number of the terminal fittings is an arbitrary number excluding 1, such as 2, 3, 4, 5, 6, 7, 8, 9 or the like. A terminal board characterized by comprising: 4. A terminal board in which a plurality of terminal fittings are fixed to a main body made of an insulator in an aligned state, and each of said terminal fittings is connected to a conductive wire using a screw. A lid having a working hole corresponding to the position of the terminal is formed integrally with the body via a thin hinge so as to be openable and closable, and the lead-out holes of the terminal are formed in three rows in the body. Then, in the case of a single terminal fitting having one lead portion, one central row of the lead holes is used,
A terminal board characterized in that in the case of a two-terminal fitting having two lead portions, two rows at both ends are used.