JPS6224951Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a mounting structure for a socket for mounting a relay on a panel board.

FIG. 1 shows a fixing fitting 12 for attaching a conventional relay socket to a panel board. It is held in the socket. The locking pieces 13 are each formed with a cut-and-raised claw piece 14 that protrudes upward on the outer surface, and when the socket is attached to the opening window of the panel plate, the outer peripheral edge of the socket is inserted from the front side of the panel plate. Insert until the flange. At this time, the claw piece 1 of the locking piece 13
When the socket 4 is bent and inserted through the panel board, it returns to its original position and is locked from the back surface of the panel board by the end face of the claw piece 14, thereby attaching the socket to the panel board.

FIG. 2 shows another conventional example of the fixing fitting 15, which has a rectangular frame whose upper part abuts the outer periphery of the upper surface of the socket, and a locking piece 1 integrally attached to the inner end surface of this frame.
3 is formed. Locking piece 1 of this fixture 15
3 is also formed by cutting and raising a claw piece 14 that engages from the back side of the panel board.

FIG. 3 shows still another conventional example of the fixing fitting 16, which includes a holding piece 18 for holding that is locked from the upper end of the locking piece 13 to the central recess 19 of the socket 4', and a holding piece 18 that is attached to the socket 4'. It is integrally formed with a spring plate 17 that holds and fixes the relay 20. The fixing fittings 12, 15, 16 in each of the above conventional examples are as follows:
Since the two locking pieces 13 are integrally formed, or one locking piece 13 is formed with other members, the material yield is poor, and the fixing metal fittings 12, 15, 16 are Since the load against the bending of the socket is small, there is a problem that it can only be used for small sockets.Furthermore, when attaching the socket 4' to the panel board 1, the fixing metal fittings 12, 15, 16
There was a problem in that the claw piece 14 was deformed because the locking piece 13 and the outer surface of the socket 4' were in close contact with each other.
Moreover, a strong fixing force is required to attach a large socket to the panel board 1, but there was no one that had such a strong fixing force.

The present invention has been proposed in view of the above-mentioned points, and is designed to improve the yield of materials, provide stable fixing force even when installing large relays, and further improve The present invention provides a socket mounting structure for the purpose of preventing deformation of the socket.

Embodiments of the present invention will be described in detail below with reference to the drawings. 3 in the figure is an elastic fixing fitting with a roughly U-shaped cross section.
A socket 4 for mounting an electrical component such as a relay is fitted into the opening 2 of the panel board 1 from the front of the panel board 1. Reference numeral 5 denotes a recessed groove whose upper surface is open on the upper surface of the socket 4. The recessed groove 5 is formed into a rectangular shape with closed portions 6 at both ends thereof. On both sides of the groove 5 of the socket 4, pin holes 21 into which terminal pins 22 are inserted and held are linearly bored. The fixing fitting 3 has a central portion 8 fitted into the closing portion 6 of the socket 4 from above, and has locking pieces 9 and 11 integrally formed on both sides, respectively. One of the locking pieces 9 is located in the groove 5 of the socket 4 and comes into contact with the inner wall surface of the closing part 6, and is further cut and raised so as to protrude obliquely upward toward the side of the closing part 6 that the locking piece 9 comes into contact with. The tip of the claw piece 10 contacts the upper surface of a recess 23 cut into the inner wall surface of the closing portion 6 to restrict vertical movement of the fixture 3. Further, at the lower end of the locking piece 9 of the fixture 3, a fixing piece 24 that comes into contact with the bottom surface of the groove 5 and a protruding piece 25 that protrudes laterally from both ends of the locking piece 9 are integrally formed. There is. Therefore, the fixing piece 2 of the locking piece 9
4 is fixed to the bottom surface of the concave groove 5 of the socket 4, both end surfaces of the protruding piece 25 abut against the wall surfaces on both sides of the concave groove 5, and the protruding piece 25 restricts the movement of the fixing metal fitting 3 in the front-rear direction. ing. Further, a protrusion 26 is provided in the groove 5, and the protrusion 26 and the closing part 6 connect the fixing metal fitting 3.
The locking piece 9 is positioned. The other locking piece 11
Two claw pieces 10 are formed, each of which is cut and raised and protrudes outward and diagonally upward, and the claw pieces 10 of this locking piece 11 are locked with the back surface of the panel board 1. Central part 8 connecting both locking pieces 9 and 11 of fixing metal fitting 3
is formed into a trapezoidal shape that is wider on one side of the locking piece 9, and this is to increase the spring load of the fixing member 3. As shown in FIG. 5, recesses 28 are formed on both sides of the socket 4 with a step 29 in the center, as shown in FIG.
When the fixture 3 is fitted into the socket 4, a space A having a thickness approximately equal to the protruding portion of the stepped portion 29 is formed between the inner surface of the locking piece 11 and the outer surface of the recess 28. . This is because the shape of the projecting piece 10 of the locking piece 11 of the fixture 3 is smaller than the thickness of the plate, so that it is easily deformed when attached to the panel board 1, so the space A is provided. Reference numeral 27 denotes protrusions provided on both sides of the closing portion 6 of the socket 4, and a substantially U-shaped linear retaining spring 7 is rotatably attached between the protrusions 27. The stop spring 7 holds the relay attached to the socket 4, and when the relay is not attached, the stop spring 7 is rotated and stored in the groove 5 on the upper surface of the socket 4. Reference numeral 30 denotes a flange protruding from the upper outer periphery of the socket 4, the lower surface of which abuts against the periphery of the opening 2 on the front surface of the panel board 1.

As described above, the fixing metal fittings 3 are fitted into the closed portions 6 of the socket 4, respectively, and the socket 4 is inserted into the opening window 2 from the front side of the panel board 1, as shown in FIG.
Insert into. At this time, the outer surface of the claw piece 10 of the locking piece 11 of the fixture 3 comes into contact with the inner end surface of the opening window 2, but the claw piece 10 has elasticity and has a space A inside the locking piece 11. Therefore, the locking piece 11 and the claw piece 10 are pushed into the space A, and the claw piece 11 is located on the back side of the panel board 1, and as shown in FIG. It comes into contact with the back of 1. At the same time, the lower surface of the flange 30 of the socket 4 comes into contact with the front surface of the periphery of the opening window 2 of the panel board 1,
The socket 4 is attached to the opening window 2 of the panel board 1.

As described above, in the present invention, the fixing metal fittings are fitted into both sides of the groove of the socket, and only the first and second locking pieces are used to connect the socket and the panel plate, so that the yield rate of the material of the fixing metal fittings is reduced. In addition, the retaining spring that holds electrical components such as relays can be stored in the recessed groove of the socket, so the retaining spring can be stored in the recessed groove and the fixing metal fittings can be fitted into the closed parts on both sides of the recessed groove. When attaching the socket, the first locking piece of the fixing bracket, which is approximately U-shaped in cross section, is inserted into the opening window from the front side of the panel plate located on the outer wall of the socket, and the back side is inserted into the opening window. The central part between the second locking piece and the second locking piece, which has a claw piece cut upward on the outer surface of the locking part, is formed into a trapezoid shape with one side of the first locking part widening. The central part of the shape increases the spring load of the fixing metal fittings, making it possible to mount a large relay.Also, since a space is formed between the inner surface of the second locking piece and the outer wall surface of the socket, the socket When inserting the panel plate into the opening window, the second locking piece and the claw piece are pushed into the space together with the fact that they themselves have elasticity, so the claw piece of the second locking piece is deformed. It has the advantage of preventing

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a conventional fixture, FIG. 2 is a perspective view of another conventional fixture, FIG. 3a is a perspective view of another conventional fixture, and FIG. 3b is a perspective view of another conventional fixture. FIG. 4 is a perspective view of the fixing fitting according to the embodiment of the present invention; FIG. 5 is a perspective view of the main parts of the socket; FIG. 6 is a main part showing the mounting state of the above socket. 7 is a bottom view of the same as the above, FIG. 8 is a perspective view of the main parts of the socket, FIG. 9 is an exploded perspective view of the same, and FIGS. 10 a, b, c, and d are the same as the above Top, side, bottom, and front views of the socket.
1 is a panel board, 2 is an opening window, 3 is a fixing metal fitting, 4 is a socket, 5 is a groove, 6 is a closing part, 7 is a stop spring, 8 is a center part, 9 is a first locking piece, 10 is a The claw piece 11 is a second locking piece, and A is a space.

Claims (1)

[Scope of utility model registration request] In a socket mounting structure in which a socket is attached to an opening window drilled in a panel plate by interposing a fixing metal fitting, a groove with an open top is formed on the upper surface of the socket, and both ends of this groove are closed. A retaining spring that can be stored in a recessed groove that holds an electrical component such as a relay is rotatably attached to the closed part, and the center part is fitted into the closed parts on both sides of the socket, making it approximately U-shaped in cross section. form a fixing fitting with elasticity of
A first locking piece that is locked to the inner wall surface of the closed portion of the socket of the fixing fitting, and a first locking piece that is located on the outer wall surface of the socket and is inserted into the opening window from the front side of the panel plate and is locked from the back side. The center portion between the second locking piece and the second locking piece having a claw piece cut upward along the outer surface is formed into a trapezoid shape with one side of the first locking member widening;
A socket mounting structure characterized in that a space is formed between the inner surface of the second locking piece and the outer wall surface of the socket.