JPS6010429B2 - socket - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a socket for a 4-type control device such as a relay or a timer, and particularly to a socket that simplifies the work of connecting electric wires.

Conventionally, when connecting electric wires with crimp terminals to this type of socket, the terminal screws were first removed from the terminal board installed on the terminal block of the socket, the crimping terminals were installed on this terminal board, and then the terminals were removed. Screws must be installed, and when removing crimp terminals, the terminal screws must also be removed from the terminal board, which not only makes the work extremely complicated, but also
There was a concern that terminal screws would be lost when connecting or disconnecting electric wires to sockets.

The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide a socket that is easy to assemble, facilitates the work of connecting and disconnecting electric wires, and prevents the terminal screw from becoming powdery. It is.

Embodiments of the present invention will be described below based on the drawings.

Reference numeral 1 denotes a single socket made of a molded insulator, which has a base 11 in the center, and terminal blocks 12a and 12b are provided in steps at both ends of the longitudinal direction.
A partition wall 13 is provided on the back side of each terminal block 12a, 12.
They are erected in steps according to the height of b.

The base 11 has recessed holes 11a, 11a, 1 for inserting and removing insertion terminals (not shown) such as relays or timers.
1b and 11b are provided closer to the front side, and the recessed hole 11a
and the terminal block 12a provided on the upper stage of both ends, and the concave hole 1b connecting the bottom of the concave hole and the surface of the terminal block, and the concave hole 11b connecting the bottom of the concave hole and the surface of the terminal block.
The holes 11a, 11b and the holes 11c, 11d are both connected to each other by the holes 11a, 11b and 11c, 11d.
Reference numerals 3 and 4 designate connection fittings, which have plug terminals 31 and 41 carried into the recessed holes 11a and 11b formed at one end thereof, and terminal plates 32 and 42 led out to the terminal blocks 12a and 12b formed at the ends thereof.

In the illustrated example, the terminal plates 32 and 42 have thick plates 32 and 43 integrally fixed to their lower surfaces by welding or the like, and screw holes 32a and 42a into which the terminal screws 5 are screwed are provided approximately at the center of the L. is screwed on. Further, one end of each terminal plate is bent at a right angle to extend the vertical pieces 34 and 44 downward, and the end stop portions 35A and 45A are formed at the upper part from the approximate center of the vertical pieces 34 and 44. Elastic pieces 35 and 45 are provided to extend above the surface of each terminal plate 32 and 42. Further, from both sides of the vertical pieces 34 and 44, holding pieces 36, 36 and 46, 46 extend inward so as to sandwich the central elastic pieces 35 and 45. The movable member 6 is made of a conductive metal fitting with a substantially "shaped cross section. A terminal screw 5 having a retaining part (not shown) is attached to the approximate center of the neck part 61, and a hanging piece 62 is attached downward from the neck part 61 at an approximately right angle. It is extended.Descent piece 6
2 is a guide piece 63 which is elastically held by the holding pieces 36, 36 or 46, 46 and is attached to be vertically slidable.
, 63 are formed on both sides, and both guides 63, 6 are formed on both sides.
A locking piece 64 hangs down from the center portion between the two. The locking piece 64 forms stepped portions 64A, 64B that engage with the locking portions 35A, 45A formed on the respective elastic pieces 35, 45 of the connection fittings 3, 4 at two different height positions. . The movable member 6 is attached to the connecting fitting 3 or 4 with both guide pieces 63, 63 of the hanging piece 62 of the movable member 6 facing the holding piece 36 or 46, that is, the second
To explain with reference to the drawings, when the movable member 6 is positioned on the upper side of the connection fitting and both guide pieces 63, 63 are bent inward against their elasticity, the holding pieces 36, 36 or 46
, 46, and then return it to its original state and attach it. Therefore, after installation, the movable member 6 is supported movably up and down along the inner surfaces of the holding pieces 36 and 46, and is prevented from detaching from the connecting fittings 3 and 4 by the stoppers 63A, 63A. . The socket of the embodiment shown in FIG. 1 is constructed by placing the socket units 1 configured as described above in an arbitrary number of pole rows with their front entrances facing in the same direction. The socket unit 1 located at the final end is closed with an end plate 8 to complete the socket. When assembling this socket, according to the present invention, after the movable member 6 is attached to the connecting fittings 3 and 4, these can be attached with iron from the front end of the socket unit 1, so assembly is very easy. I can do it. Next, the operation of connecting electric wires to the socket according to the present invention will be explained. The terminal block 12a on the upper left side of FIG. 1 shows a state in which no electric wire is connected. In this state, the lower step 64 of the sub-joint piece 64 of the movable part village 6 is engaged with the locking part 35A of the elastic piece 35, and the movable member 6 is fixed by the elastic force of the elastic piece 35. , and the stopper 63A,
63A is supported by the lower end of the holding piece 36 and its upward movement is stopped. In this state, the dimensions of each part are set so that there is a gap between the lower end of the screw 5 and the surface of the terminal plate 32 so that the electric wire 9 can be inserted. Further, the terminal screw 5 does not fall off from the neck portion 61 of the movable member 6, and the terminal screw 5 does not fall off from the screw tip hole 32a.
is facing. The terminal block 12b on the lower left side of FIG. 1 shows a state in which the electric wire 9 is connected. Terminal board 42 and capital 61
clamps the electric wire 9, and the movable member 6 has descended to near its lower limit. This invention is characterized in that the state in which the movable member 6 is not screwed can be changed in two ways.

That is, the movable member 6 is stably held in two positions: the upper limit position shown in FIG. 3a and the lowered position shown in FIG. 3b. That is, the locking portion 35A of the elastic piece 35 is connected to the locking piece 64.
Figure a shows a case in which it is joined to the lower step part 648 formed in , and Figure b shows a case in which it is iron-matched to the upper step part 64A. In such a device, the user pulls up the movable member 6 to the state shown in Fig. 3a, inserts the electric wire, and presses down the movable member 6, which immediately returns to the state shown in Fig. 3b. The connection is then made by tightening the screws. FIG. 4 shows another embodiment of the present invention, in which the socket shown in FIG. 1 is a so-called vertically split type socket, whereas the socket is configured as a horizontally split type socket.

In the case of the horizontal split method, the socket body is the lower block 10
1, a middle block 102 and an upper block 103, each block having a predetermined pole row. To assemble this socket, after placing the connecting fitting 4 with the movable member 6 attached on the lower block 101, placing the middle block 102 on top of it, and further placing the connecting fitting 3 similar to the above, The socket is completed by attaching an upper block 103 to the upper side. Even in the case of this horizontally split type socket, the movable member 6 can be attached to each of the connecting fittings 3 and 4 when assembling the socket, as in the case of the vertically split type. According to this invention, not only is it easy to assemble the tethered metal fitting into the socket, but there is no risk of the terminal screw coming off and losing powder when connecting electric wires, and it is also easy to connect and remove electric wires. Work becomes extremely easy.

[Brief explanation of the drawing]

FIG. 1 is a partially longitudinal front view showing an embodiment of the invention, and FIG.
3 is an explanatory view of the operation of the invention, and FIG. 4 is a partial vertical sectional view showing another embodiment of the invention. 1... Single socket, 12a, 12b...
・Terminal block, 11a, 11b, 11c, 11d...
... Recessed hole, 3, 4... Connection fitting, 31, 41.
......Receptacle terminal, 32,42...Terminal board, 32
a, 42a... Screw hole, 34, 44...
・Vertical piece, 35, 45...Elastic piece, 35A, 4
5A... Locking part, 36, 46... Holding piece, 5... Terminal screw, 6... Movable member, 6
1... Capital, 62... Hanging piece, 63...
... Guide piece, 64 ... Locking piece, 64A, 6
4B...Dan section. Don't like traditional drawings? Illustration 3: Illustration ◇

Claims (1)

[Scope of Claims] 1. A socket having a recessed hole on the top surface into which a terminal of a small control device can be inserted and removed, and a terminal block extending from the side surface, the socket having a terminal plate extending to the terminal block at one end. a connecting fitting integrally formed with a socket terminal facing the recessed hole and into which a terminal of a small control device is inserted and contacted; An elastic piece having a locking part formed in an upper part from the substantially central part is provided to extend above the terminal plate, and holding pieces are extended from both sides of the vertical piece so as to sandwich the elastic piece. At approximately the center of the hanging piece of the movable member, which is held by the holding piece and is attached to be movable up and down along the vertical piece, the movable member has an approximately square cross section. The movable member is characterized in that a locking piece is formed that fits in the concave and convex portion at a position, and a terminal screw having a retaining portion is attached to the neck of the movable member, so that the terminal screw can be screwed into the screw hole of the terminal plate. socket. 2. A desired pole array is obtained by arranging a predetermined number of single sockets with openings on the front side facing in the same direction and sequentially closing the openings with each adjacent single socket. The socket described in paragraph 1. 3. The socket according to claim 1, which comprises at least two upper and lower blocks each having a predetermined pole row, and is formed by stacking the blocks.