JP3409237B2 - Terminal device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal device comprising a self-locking connection terminal and a terminal cover mounted over the connection terminal. 2. Description of the Related Art FIG. 6 shows a conventional terminal device.
This will be described with reference to FIG. [0003] The terminal device comprises a connection terminal and a terminal cover. This terminal device is used, for example, by being mounted on a coil used for a ballast (not shown) of a lighting fixture. [0004] The coil 1 is formed by winding a conductor 3 around a coil bobbin 2 made of an insulating synthetic resin or the like.
The coil bobbin 2 is integrally provided with a terminal block 4, and the terminal block 4 is provided with a fitting groove 5. As shown in FIG. 6, the rear end of the connection terminal 10 is inserted and fitted into the fitting groove 5. The connection terminal 10 is made of a plate-like metal material.
The connection terminal 10 includes a metal base plate 11, a bent portion 12 bent downward at a right angle from a front end of the base plate 11, and the bent portion 12 formed in an arc shape toward the base plate 11. Arc-shaped portion 13 formed by bending and this arc-shaped portion 1
3 has a front end inclined at approximately 45 degrees toward the rear, and a front end edge formed with a slant portion 14 formed close to or in contact with the base plate. Further, a lead wire insertion hole 17 into which the lead wire 16 is inserted is formed from the upper portion of the bent portion 12 to the metallic base plate 1.
1 is provided to open to the front end. [0007] The locking piece 15 is provided with the inclined portion 1 of the connection terminal.
4 When the upper end is pressed rearward, the tip of the lock piece 14 is deformed downward and rearward so as to separate from the metal base plate 11. Further, on the metallic base plate 11, there is provided a fitting elastic pressure piece 18 which is bent substantially in a U shape toward the front. The terminal cover 25 is formed in a box shape made of synthetic resin, and has a terminal storage portion 26 having an inclined rear surface 27 which opens rearward and accommodates the connection terminal 10 therein, and has an inclined surface 27 which expands rearward. A lead wire insertion hole 2 into which the lead wire 16 is inserted is formed in a front partition wall 28 of the terminal storage portion 26.
9 is provided horizontally. To attach the terminal cover 25 to the connection terminal 10, as shown in FIG. 6, the terminal cover 25 is horizontally moved in the direction of arrow A, and the connection terminal 10 is stored in the terminal storage portion 26. Since the lower surface of the terminal housing 26 has an inclined surface 27 that expands rightward, the connection terminal 10
Is mounted by elastically fitting between the upper surface portion 27a of the terminal storage portion and the inclined surface 27 by the fitting elastic piece 18 of the connection terminal and the lower end 13a of the arc-shaped portion. To attach the lead 16 to the terminal device,
When the lead wire 16 is inserted into the lead wire insertion hole 29 of the terminal cover 25 while moving the lead wire in the horizontal direction, the tip 16a of the lead wire 16 passes through the lead wire insertion hole 17 of the connection terminal. Further, when the lead wire is moved rightward, the leading end 16a of the lead wire moves rightward while pressing backward the upper end of the inclined portion 14 formed at the tip of the lock piece 15. I do. At this time, the tip of the lock piece 15 moves rearward and downward with the lower part of the arcuate portion 13 as a fulcrum, and a gap through which a lead wire passes between the metal base plate 11 and the tip of the lock piece 15 is formed. I do. The lead 16 moves rightward through this gap. When the movement of the lead wire is stopped in a state where the lead wire has been inserted for a predetermined length, the lead wire is sandwiched and fixed between the back surface side of the metallic base plate and the tip of the locking piece. When the lead wire is to be pulled out of the terminal device, the tip of the locking piece 15 has the inclined portion 14 inclined upward and rearward.
It acts in the direction of digging into the lead wire, and the lead wire cannot be pulled out of the terminal device. To remove the lead wire from the terminal device, a pin (not shown) made of an insulating material is inserted through a through hole 30 provided on the upper surface of the terminal cover 25, and the tip of this pin is connected to the inclined portion 14 of the connection terminal. The lead wire can be pulled out from the terminal device by moving downward against the contact. As described above, in the conventional terminal device, in order to efficiently attach the lead wire to the terminal device, as shown in FIG. 8, an automatic insertion machine is used. General. For this reason, the lead wire insertion hole of the terminal device is provided in the horizontal direction of the terminal cover. However, there are cases where the automatic insertion machine cannot be used for repair or the like, and the lead wire must be manually attached to the terminal device. In this case, the ballast 35 to which the terminal device is attached is, for example, a narrow and tall side portion 37,
Generally, it is attached to the bottom portion 38 of the case 36 having the 37. In this case, if the lead wire is to be inserted by hand from the horizontal direction, the narrow and tall side portion 3 is required.
However, there is a problem in that it is difficult to insert the lead wire. Further, since the entrance portion of the lead wire insertion hole is formed in a front partition formed perpendicular to the terminal cover, the lead wire is inserted from the horizontal direction so that the lead wire insertion hole is hard to visually recognize. There was a problem that it was difficult. If the terminal device itself is inclined so that the lead wire can be inserted obliquely, the setting of the machine by the automatic insertion machine becomes complicated, and there is a problem that the maintenance is difficult. The present invention has been made in view of the above points, and it is an object of the present invention to provide a terminal device capable of inserting a lead wire in a direction in which work is easy. In order to achieve the above object, a terminal device according to the present invention comprises a metal base plate and a lead wire insertion hole inclined downward and forward from the front end of the base plate. And an approximately L-shaped bent portion including a sloped portion having a slope and a sloped base plate inclined downward and rearward from the sloped portion, and the tip of the bent portion is formed by folding back toward the base plate. The first locking piece that clamps the lead wire inserted from the lead wire insertion hole with the base plate, and the tip of the cut-and-raised portion formed on the front end side of the base plate are attached to the inclined base plate. A self-locking connection terminal consisting of a second locking piece that is formed by folding back and inserted into the lead wire insertion hole obliquely between the inclined base plate and the lead wire; Terminal storage section for storing this connection terminal and this terminal storage section And a terminal cover comprising a lead wire insertion hole inclined forward and downward for inserting the lead wire into a front surface of the terminal cover. In the above configuration, the terminal device according to the present invention is provided with a lead wire insertion hole for inserting a lead wire into the inclined portion of the connection terminal, and a lead wire is horizontally inserted through the obliquely formed lead wire insertion hole. , The horizontally inserted lead wire is crimped and held between the back side of the base plate and the tip of the first locking piece. When the lead wire is inserted obliquely downward from the obliquely formed lead wire insertion hole, the lead wire inserted obliquely downward is located between the back surface of the inclined base plate and the tip of the second locking piece. Is crimped. Embodiments of the present invention will be described below with reference to FIGS. 1 to 5. Note that the same components as in the prior art will be described with the same reference numerals. FIG. 1 is a perspective view showing a self-locking connection terminal according to the present invention. The connection terminal 40 is formed of a metal base plate 41 made of a plate-like metal material and a front end of the base plate 41. The inclined portion 42 inclined downward and forward and the inclined portion 4
A substantially L-shaped bent portion 45 composed of an inclined base plate 44 inclined downward and rearward from 2, and the tip of the bent portion 45 is bent substantially U-shaped toward the base plate 41. The bent U-shaped part 46 and the front end of the U-shaped part 46
And a first locking piece 48 which is inclined at 5 degrees and is provided near the base plate 41. Note that a rectangular lead wire insertion hole 43 is formed in the inclined portion 42 so as to open. At the rear of the base plate 41, there is provided a fitting elastic pressure piece 18 bent substantially U-shaped toward the front. Further, a cut-and-raised portion 50 is formed on the base plate 41, and the tip of the cut-and-raised portion 50 is folded back toward the inclined base plate 44 to form a second lock piece 51. are doing. The tip of the second lock piece 51 is provided close to the inclined base plate 44. Further, triangular concave portions 52 are formed at the tips of the first lock piece 48 and the second lock piece 51, respectively. FIG. 2 shows a coil provided with a self-locking connection terminal according to the present invention and a terminal cover which is mounted so as to cover the connection terminal. The coil 1 is composed of a coil bobbin 2 made of an insulating material and a conductor. The coil bobbin 2 is integrally provided with a terminal block 4 in which two fitting grooves (not shown) are provided in parallel. Are fixed to the terminal block 4 in parallel. The terminal cover 55 according to the present invention is formed in a box shape made of synthetic resin, has an opening at the rear, accommodates the connection terminal 40 therein, and has an inclined surface similar to that of the prior art which expands rearward. Terminal storage part (not shown) having (not shown)
Are formed. In addition, the front partition of the terminal storage section,
There are inclined partitions 56 inclined downward and forward, and in these inclined partitions 56, lead wire insertion holes 57 into which the lead wires 16 are inserted are respectively opened along the inclined surfaces 56a. In addition, two through holes 30 are formed in the upper surface of the terminal cover 55 to disconnect two lead wires connected to the self-locking connection terminals 40 in parallel. The inclined partition 56
Is formed at the same angle as the inclined portion 42 of the connection terminal 40, and the shape of the lead wire insertion hole 57 provided in the inclined partition wall 56 is the same as that of the lead wire insertion provided in the inclined portion 42 of the connection terminal 40. The hole 43 is formed in the same shape. In order to attach the terminal cover 55 to the connection terminal 40, as shown in FIG. 2, the terminal cover 55 is moved in the direction of the arrow, and the connection terminal 40 is stored in a terminal storage portion (not shown). Since the lower surface of the terminal storage portion has an inclined surface (not shown) that expands rightward, the connection terminal 40 is formed in a U-shape with the fitting elastic piece 18 of the connection terminal. Upper end portion (not shown) of the terminal storage portion with the lower end 46a of the portion
It is mounted by elastic pressure fitting between the inclined surface and the inclined surface. In a state where the connection terminal 40 is stored in a terminal storage portion (not shown), the lead wire insertion hole 43 of the connection terminal 40 and the lead wire insertion hole 57 of the terminal cover 55 are arranged at opposing positions. Have been. A method of inserting a lead wire into a terminal device in a horizontal direction and an oblique direction will be described with reference to FIGS. FIG. 3 shows a state in which the lead wires are mounted horizontally using an automatic machine, and a state in which the lead wires are manually mounted obliquely. First, a method of horizontally attaching a lead wire to a terminal device using an automatic machine will be described. The two lead wires 16 are set horizontally on the automatic machine 60 in accordance with the pitch of the lead wire insertion holes 57 provided in parallel with the terminal cover 55, and the automatic machine 60 is connected to the lead wire insertion holes 57. Adjust the height so that it can be inserted into Then, when the automatic machine 60 is moved rightward, the lead wires are inserted into the lead wire insertion holes 29 provided in parallel with the terminal cover 25, respectively. FIG. 4 shows a state in which the lead wire is crimped to the connection terminal. The lead wire 16 inserted from the lead wire insertion hole 57 passes through the lead wire insertion hole 43 of the connection terminal, and then becomes a lead wire. Abuts against the inclined portion 47 of the first lock piece 48. Further, as the automatic machine 60 is moved rightward, the leading end 16a of the lead wire presses the inclined portion 47 rightward. When the inclined portion 47 is pressed rightward, the first lock piece 48 moves rearward and downward with the lower part of the U-shaped portion 46 as a fulcrum, and the lower surface of the base plate 41 and the first lock are locked. One part 4
A gap is formed between the upper end of the lead 8 and the upper end of the lead 8. The lead 16 moves rightward through this gap. When the movement of the lead wire is stopped while the lead wire is inserted for a predetermined length, the lead wire is moved between the back side of the metal base plate and the bottom of the triangular recess 52 formed at the tip of the locking piece. It is pinched and fixed. When the lead wire is to be pulled out from the terminal device, the tip of the first locking piece 48 has the inclined portion 47 inclined upward and rearward. The tip of the portion acts in the direction of cutting into the lead wire, and the lead wire cannot be pulled out of the terminal device. When the lead wire is pulled out from the terminal device, the through-hole 30 formed in the upper surface of the terminal cover 55 is provided.
Then, a pin (not shown) made of an insulating material is inserted from above, and the tip of this pin is abutted against the inclined portion 47 of the first lock piece, and the inclined portion 47 is moved downward to connect the lead wire. It can be removed from the terminal device. Next, a method for manually attaching the lead wire to the terminal device obliquely will be described. As shown in FIG. 3, the user holds the lead wire obliquely with his / her finger and inserts the lead wire obliquely into the lead wire insertion opening 57 opened obliquely in the terminal cover 55. FIG. 4 shows a state in which the lead wire is crimped to the connection terminal. The lead wire inserted from the lead wire insertion opening 57 obliquely passes through the lead wire insertion hole 43 of the connection terminal, and then leads. The front end 16a of the wire is
Abut. Further, when the lead wire is pushed obliquely, the tip end 16a of the lead wire pushes the second lock piece 51 obliquely downward, and the tip end 16a of the lead wire
While moving downward along the second lock piece 51, the lead wire is in a state along the back surface of the inclined base plate 44. Further, when the lead wire is pressed obliquely downward, the lead wire moves obliquely downward along the back surface of the inclined base plate 44, and the second lock piece 51 moves above the cut-and-raised portion 50. It moves upward and backward as a fulcrum, and a gap through which the lead wire passes is formed between the back surface side of the inclined base plate 44 and the tip of the second lock piece 51. The lead 16 moves obliquely downward through this gap. The lead wire
When the movement of the lead wire is stopped with the lead wire inserted into a predetermined length, the lead wire is pinched between the back side of the metal inclined base plate and the bottom of the triangular recess 52 formed at the tip of the lock piece.・ It is fixed. When the lead wire is to be extracted from the terminal device, the tip of the second lock piece 51 is inclined downward and forward. Acting in the direction of biting into the wire, the lead wire cannot be pulled out of the terminal device. To remove the lead wire from the terminal device, a pin (not shown) made of an insulating material is inserted through a through hole (not shown) provided on the lower surface of the terminal cover 55, and
The lead wire can be pulled out of the terminal device by abutting the tip of the pin against the second lock piece and moving backward. The method of attaching the lead wires to the terminal device in the horizontal direction and the oblique direction as shown in FIG. 3 has been described. However, as shown in FIG. 5, the lead wires are attached to the terminal device in the vertical direction and the oblique direction. Even if it is attached, the same operation and effect can be obtained. Next, the operation of the above embodiment will be described. In the terminal device according to the present invention, a lead wire insertion hole for inserting a lead wire is provided in the inclined portion of the connection terminal, and the lead wire is horizontally inserted from the obliquely formed lead wire insertion hole. The horizontally inserted lead wire is crimped and held between the back side of the base plate and the tip of the first locking piece. When the lead wire is inserted obliquely downward from the obliquely formed lead wire insertion hole, the lead wire inserted obliquely downward is located between the back surface of the inclined base plate and the tip of the second locking piece. Is crimped. As shown in FIG. 5, a lead wire may be attached to the terminal device in a vertical direction and an oblique direction. As described above, since it is possible to hold the lead wires inserted in two directions from the same lead wire insertion hole, the insertion direction can be selected by one terminal device according to the working state. It became so. As described in detail above, the self-locking connection terminal according to the present invention includes the first locking piece and the second locking piece for holding the lead wire. With the provision, the lead wire can be inserted in two directions, that is, a horizontal direction and an oblique direction or a vertical direction and an oblique direction, so that it is possible to select an insertion direction that is easy to work.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a connection terminal according to a first embodiment of the present invention. FIG. 2 is an exemplary perspective view showing a state in which the connection terminal is mounted on the coil and a terminal cover attached to cover the connection terminal in the embodiment; FIG. 3 is an exemplary perspective view showing a state where a lead wire is inserted into the terminal device according to the embodiment; FIG. 4 is an exemplary plan view showing a state where a lead wire is inserted into the connection terminal according to the embodiment; FIG. 5 is a perspective view showing another embodiment in which a lead wire is inserted into the terminal device according to the above. FIG. 6 is a front sectional view showing a terminal device according to the related art. FIG. 7 is a perspective view showing a state in which a connection terminal according to the prior art is mounted on a coil and a terminal cover attached to cover the connection terminal. FIG. 8 is a perspective view showing a state where a lead wire is inserted into a terminal device according to the related art. [Description of Signs] 16 ... Lead wire, 40 ... Connection terminal, 41 ... Metallic base plate, 42 ... Inclined portion, 43 ... Lead wire insertion hole, 44 ... Inclined base plate, 45 ... Substantially L-shaped bent portion, 48: first locking piece, 50: cut-and-raised part, 51: second locking piece, 55: terminal cover, 57: lead wire insertion hole.

Claims (1)

(1) A metal base plate, an inclined portion inclined downward and forward from a front end of the base plate and having a lead wire insertion hole, and downward and rearward from the inclined portion. A bent portion formed of a substantially L-shaped bent base plate, and a lead wire formed by bending the tip of the bent portion toward the base plate and inserted through the lead wire insertion hole into the base. A first lock piece sandwiched between the base plate and a front end of the cut-and-raised portion formed on the front end side of the base plate. A self-locking connection terminal comprising a second locking piece part for holding the lead wire inserted from the direction between the inclined base plate, a terminal storage part for storing the connection terminal, and this terminal Insert the lead wire into the front of the storage section. Terminal apparatus characterized by comprising a terminal cover composed of a lead wire insertion hole.