JPH0247560Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field This invention relates to a one-touch type terminal block unit that serves as a relay point for a large number of wires, and in particular, a one-touch type terminal block equipped with a relay terminal that does not require screws. Regarding the stand unit.

(b) Prior Art Conventionally, in a terminal block that serves as a relay point for a large number of wires, the relay terminals arranged here are formed of screws, metal plates, and washers, and the screws are used to mechanically connect the wires. Most of them are of the type that make connections. The wiring installation work for this terminal block is as follows:
This is done by loosening the screw, inserting the wiring, and then tightening the screw.

However, the terminal block equipped with this type of relay terminal has the disadvantage that, as explained above, the work of loosening and tightening the screws is extremely troublesome and time consuming. There is also a risk of losing the screw during work.

Further, according to the above terminal block, since the number of relay terminals is set in advance, the terminal block must be selected according to the number of sets of wiring to be relayed. Therefore, when the number of wiring sets increases or decreases, it is necessary to replace the terminal block itself.

(C) Purpose This invention aims to simplify the wiring installation work and shorten the working time, and also to provide a one-touch type terminal block unit that can be increased or decreased as appropriate for the number of sets of wiring to be relayed. The purpose is

(d) Configuration The one-touch type terminal block unit of this invention is a one-touch type terminal block unit equipped with a main body and a relay terminal built into the main body to connect the wires inserted from both sides of the main body. a first operation hole that is drilled in a direction substantially orthogonal to the wiring hole and is close to the center of the main body, and a second operation hole that is far from the center of the main body.
The relay terminal has a pair of holding metal fittings, a terminal plate to which the wiring is electrically connected and inserted into the holding metal fitting, and a pair of urging to press the connected wiring. The holding fitting has an elastic member, and is connected to the operation side through a plurality of connection pieces, and an operation side having a first recess near the center of the main body and a second recess far from the center of the main body. It has a clamping part, a protruding piece formed at one end of the clamping part to protrude at an angle opposite to the operating side, and a locking piece provided at the corner of the other end, and the terminal plate is formed at both ends. A pair of arms,
a protrusion provided on the upper surface of the arm; a bent portion formed at the tip of the arm to protrude in a direction opposite to the protrusion;
The elastic member has an engaging portion formed substantially at the base of the arm portion and with which the locking piece engages, and the resilient member has an upper end abutting the back surface of the operating side and a lower end being locked with the protrusion. , and the main body is configured such that when the operating jig is inserted into the second operating hole and the second recess is pressed, the locking piece engages with the engaging portion and the holding fitting is tilted so that the holding fitting is tilted. In the case where the protrusion separates the protrusion so that the distance between the protrusion and the bent part becomes wider toward the wiring hole, and the operation jig is inserted into the first operation hole and the first recess is pressed. When the engagement between the locking piece and the engaging part is released, the wiring inserted through the wiring hole is pressed between the back surface of the arm part and the upper surface of the clamping part.

(E) Embodiment FIG. 1 is an external perspective view showing an embodiment of the one-touch type terminal block unit according to this invention.

In the figure, reference numeral 1 indicates a one-touch type terminal block unit, which is composed of a relay terminal 2 (not shown) and a main body 10 that holds the relay terminal 2. The main body 10 is formed by engaging holding members 10a and 10b facing each other. A pair of operating holes 11 near the center of the main body are provided at predetermined positions on the upper surface of the main body 10 into which an operating jig is inserted.
a, 12a, and a pair of operation holes 1 far from the center of the main body.
1b and 12b are bored. and main body 1
Wiring holes 13a and 13b into which the wirings are respectively inserted are formed in substantially the center of the side surface of the 0 in a direction perpendicular to the drilling direction of each of the operation holes. The wiring holes 13a and 13b each have a shape that decreases inwardly, making it easier to fit the wiring.

Specifically, the one-touch type terminal block unit 1 is shown in FIGS. 2 and 3 and will be described below.
FIG. 2 is an explanatory view showing the relay terminal 2 mounted on the holding member 10a, and FIG. 3 is an exploded perspective view of the one-touch type terminal block unit 1 shown in FIG.

The shaded portion in FIG. 2 is a reinforcing portion formed thicker than other portions, and serves to reinforce the holding member 10a as a whole. In this embodiment, a plurality of fitting bosses 17a are protruded at predetermined positions of the reinforcing portion on the right half, and a plurality of fitting holes 17b are cut in the left half symmetrically with the fitting bosses 17a. ing. That is, the fitting boss 17a of the holding member 10a and the fitting hole 17b of the holding member 10b are
Fitting hole 17b of holding member 10a and holding member 10b
The fitting bosses 17a are fitted together to engage the holding members 10a and 10b.
Furthermore, wavy anti-slip portions 14a, 14b and protrusions 15a, 15b are formed at predetermined locations on the reinforcing portion, and these prevent the movement of the holding fittings 22a, 22b of the relay terminal 2, which will be described later. It is restricted. In particular, the protrusions 15a and 15b
When the holding fittings 22a, 22b are pushed by the operating jig, the holding fittings 22a, 22b are tilted not perpendicularly to the terminal plate 21 to adjust the distance when the holding fittings 22a, 22b and the terminal plate 21 are separated. It is something to do. Furthermore, the notches 18a, 18b, and 18c at predetermined locations of the reinforcing portion are used to securely hold the terminal plate 21 of the relay terminal 2. In addition,
The holding member 10b also has the same shape as the holding member 10a.

The relay terminal 2, which is the main part of this embodiment, is shown in FIG. 4 and will be explained. FIG. 4 is an exploded perspective view of the relay terminal 2.

The relay terminal 2 includes a terminal plate 21 that electrically connects the wires to be relayed, and clamping portions 225a and 225a that press the wires against the terminal plate 21.
holding fittings 22a and 22b with 25b;
The holding fittings 22a and 22b are housed in the holding fittings 22a and 22b, and the holding fittings 22a and 22b are connected to the terminal plate 2.
The spring 23 is an elastic member that biases the arms 212 and 213 of the first arm.

Specifically, the terminal plate 21 has a central wide part 211 and arm parts 21 extending from both sides of the wide part 211.
2 and 213, and a bent portion 21 in which the tips of the arm portions 212 and 213 are respectively bent upward at a predetermined angle.
4, 215, engaging portions 216a, 216b formed at the four corners of the lower surface of the wide portion 211, 216c, 216d (not shown), and the arm portions 212, 2.
The spring 13 is provided with protrusions 217a and 217b provided on the upper surface of the spring 23 to prevent the spring 23 from coming off. This terminal plate 21 is made of, for example, metal plated with tin.

The holding fitting 22a is formed by pressing out and bending a single thin plate, and includes a clamping part 225a that brings the wiring into contact with the back surface of the arm part 212 of the terminal board 21, and a clamping part 225a that brings the wiring into contact with the back surface of the arm part 212 of the terminal board 21. A locking piece 221a provided at the corner of one side of 225a and 222a (not shown), a protruding piece 224a projecting obliquely from the other side of the clamping part 225a, and a predetermined interval from the clamping part 225a. The operating side 223a is located in a parallel position and has recesses 226a, 227a formed corresponding to the operating holes 11a, 11b of the main body 10. In the example, they are connected by four (4) elongated flat connecting pieces 200. The dimensions of the operating side 223a, the clamping part 225a, and the connecting piece 200 are set appropriately so that the arm part 212 of the terminal board 21 can be inserted into the space formed by the operating side 223a, the clamping part 225a, and the connecting piece 200. has been done. Note that the holding fitting 22b is also constructed in the same manner as the holding fitting 22a.

The spring 23 has enough elastic force to prevent the wiring from easily coming off when the wiring is pressed between the holding fittings 22a, 22b and the terminal plate 21.

In order to form the relay terminal 2 with the parts explained above, first, the arm parts 212 and 2 of the terminal plate 21 are
13 into the holding fittings 22a, 22b, respectively, and then housing the spring 23 in the holding fittings 22a, 22b as shown by the arrow, and inserting the upper end of the spring 23 into the operating sides 223a, 223a, 223, respectively of the holding fittings 22a, 22b.
223b, and their lower ends are engaged with protrusions 217a, 217b provided on the upper surfaces of arms 212, 213 of terminal plate 21, respectively. Then, the clamping parts 225 of the holding fittings 22a, 22b
The upper surfaces of a and 225b are respectively terminal plate 2
Assembly of the relay terminal 2 is completed with the relay terminal 2 in contact with the back surfaces of the arm portions 212 and 213 of the relay terminal 2.

Bent parts 214, 215 and wide part 21 of terminal plate 21 of relay terminal 2 assembled in this way
1 to each notch 18a, 18 on the side of the holding member 10a.
b, 18c, and the fitting boss 17a and fitting hole 17b of this holding member 10a and the holding member 10b
The one-touch type terminal block unit 1 is formed by engaging the fitting hole 17b and the fitting boss 17a.

FIG. 5 is an explanatory side view showing an example of use of the one-touch type terminal block unit according to this embodiment.

As shown in FIG. 5, a stopper 4a is fixed at a predetermined position with an unmarked screw along the protruding piece 31 of the rail 3, which has a substantially inverted π-shaped cross section and is indicated by a dashed line in FIG. A terminal plate 6a is mounted so as to be in contact with this stopper 4a, a plurality of one-touch type terminal block units 1 are mounted so as to be in contact with this terminal plate 6a, and a terminal block 6b is also connected to the terminal side through the terminal plate 6b. In this embodiment, ten one-touch type terminal block units 1 are shown mounted with the stopper 4b fixed. On the top surface of the one-touch type terminal block unit 1, a name plate 5 (see broken line in FIG. 2) that serves as a mark for the relayed wiring is attached, and a protective cover 6 is covered to prevent dust from entering thereon. It is set up.

The operation of the one-touch type terminal block unit 1 described above will now be described.

First, a jig (not shown) for operating the relay terminal 2 is inserted into the operation hole 11b side of the one-touch type terminal block unit 1, brought into contact with the recess 226a of the operation side 223a of the holding fitting 22a, and pushed down. As a result, the spring 23 is pushed by the pressing force of the operating jig.
is contracted and the locking pieces 221a, 22 of the holding fitting 22a are
2a is the engaging portion 216a, 21 of the terminal plate 21
6c, a clicking sound is emitted and the back surface of the arm portion 212 of the terminal plate 21 and the clamping portion 225a of the holding fitting 22a are separated by a predetermined distance (the pressed state is released). At this time, the holding fitting 22a is not perpendicular to the terminal plate 21 due to the protrusion 15a of the main body 10, but is inclined, and the distance between the terminal plate 21 and the clamping portion of the holding fitting 22a is directed toward the wiring hole 13a. It becomes wider. Then, insert the wiring 100 shown in FIG. 6 into the wiring hole 13a,
The conductor 101 exposed by stripping the steps of the wiring 100 is positioned between the back surface of the arm portion 212 of the terminal plate 21 and the upper surface of the clamping portion 225a of the holding fitting 22a.
Next, an operating jig is inserted into the operating hole 11a, brought into contact with the recess 227a of the operating side 223a of the holding fitting 22a, and pushed down lightly. As a result, the locking pieces 221a and 222a of the holding fitting 22a are disengaged from the engaging parts 216a and 216c of the terminal plate 21, and the extension of the spring 23 directs the clamping part 225a of the holding fitting 22a toward the arm part 212 of the terminal plate 21. Once biased, the conductor 101 of the wiring 100 is pressed and held between the back surface of the arm portion 212 and the upper surface of the clamping portion 225a, as shown in FIG. Next, when removing the wiring from the relay terminal, insert the operating jig into the operating hole 11b, and
The holding fitting 22a is brought into contact with the recess 226a of 3a.
When you press down, the locking piece 221 of the holding fitting 22a
a, 222a is the engaging portion 216 of the terminal plate 21
a, 216c and the back surface of the arm portion 212 of the terminal plate 21 and the clamping portion 225a of the holding fitting 22a.
Since the wires are separated from each other by a predetermined distance and the pressure on the wire is released, the wire can be pulled out from the relay terminal 2. After this, insert the operating jig into the operating hole 11a.
When the holding fitting 22a is pressed down by inserting the holding fitting 22a into contact with the recess 227a of the operation side 223a of the holding fitting 22a, the locking pieces 221a, 22 of the holding fitting 22a
2a and the engaging portions 216a, 21 of the terminal plate 21
6c is disengaged, and the arm portion 212 of the terminal plate 21 and the clamping portion 225a of the holding fitting 22a are brought into close contact with each other due to the extension of the spring 23, and the relay terminal 2 is returned to its assembled state. Note that the operation of the holding fitting 22b is also similar to that of the holding fitting 22a, so a description thereof will be omitted.

Note that the holding fitting 22b shown in FIG. 2 is shown in a state where the locking pieces 221b, 222b of the holding fitting 22b are engaged with the engaging portions 216b, 216d of the terminal plate 21 and are inclined.

(F) Effect According to this invention, the wiring can be opened in the open state by inserting and pushing the operating jig through the appropriate operating hole of the main body, and by inserting and pushing the operating jig into the adjacent operating hole. Since a one-touch type terminal block unit is formed by incorporating a relay terminal in the main body, which allows the wiring to be pressed in a pressed state, the installation work of the wiring is easy and extremely simple, which is a remarkable effect.

Furthermore, this one-touch type terminal block unit
Since one terminal block unit is used for one set of wiring to be relayed, the number of one-touch type terminal block units can be appropriately set during use. Therefore, the range of use can be greatly expanded regardless of the number of sets of wiring to be relayed.

[Brief explanation of the drawing]

FIG. 1 is an external perspective view showing an embodiment of the one-touch type terminal block unit according to this invention, FIG. 2 is an explanatory view showing the relay terminal 2 attached to the holding member 10a, and FIG. 3 is the same as the one shown in FIG. 4 is an exploded perspective view of the relay terminal 2, and FIG. 5 is an explanatory side view showing an example of use of the one-touch terminal block unit 1 according to this embodiment. . FIG. 6 is a perspective view of a state in which wiring is connected to the relay terminal. 1... One-touch type terminal block unit, 10...
Main body, 10a, 10b... Holding member, 11a, 1
1b, 12a, 12b... operation hole, 13a, 13
b...Wiring hole, 15a, 15b...Protrusion, 2...
Relay terminal, 21...Terminal board, 216a, 2
16b, 216c, 216d...engaging portion, 22
a, 22b...holding metal fittings, 221a, 221b,
221c, 221d...Locking piece, 225a, 22
5b...pinching part, 23...spring.

Claims (1)

[Scope of utility model registration request] In a one-touch type terminal block unit, which is equipped with a main body and a relay terminal built into the main body to which wires inserted from both sides of the main body are connected, the main body has wiring holes provided on both sides and a hole drilled in a direction almost perpendicular to the wiring holes. The relay terminal has a first operating hole located near the center of the main body and a second operating hole far from the center of the main body, and the relay terminal is inserted into the holding fitting to which a pair of holding fittings and wiring are electrically connected. The holding fitting has a first recess near the center of the main body and a second recess far from the center of the main body. an operation side provided therein, a clamping part connected to the operation side via a plurality of connection pieces, a protruding piece formed at one end of the clamping part at an angle opposite to the operation side, and a corner section at the other end. and a locking piece provided on the
The terminal plate includes a pair of arms formed at both ends, a protrusion provided on the upper surface of the arm, a bent part formed at the tip of the arm to protrude in a direction opposite to the protrusion, and the arm. and an engaging portion formed substantially at the base of the spring member, with which the locking piece engages, and the resilient member has an upper end abutting the back surface of the operating side and a lower end being locked with the protrusion, and , when the main body inserts the operation jig into the second operation hole and presses the second recess, the locking piece engages with the engagement part and the holding fitting is tilted so that the projecting piece and a protrusion that separates the bent portion so that it becomes wider toward the wiring hole, and when the operating jig is inserted into the first operating hole and the first recess is pressed, the engagement A one-touch type terminal block unit characterized in that when the engagement between the stopper piece and the engaging part is released, the wire inserted through the wiring hole is pressed between the back surface of the arm part and the upper surface of the clamping part.