JP2006032285A - Socket - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a socket which will not come off easily from an electronic equipment, even if a force pulling off the equipment is added directly on an equipment main body. <P>SOLUTION: The socket is provided with a socket body 10 having a fitting part 12 to which a bottom part side of a relay body is fitted; and a pair of detachable levers 20 each having a locking claw 24 locking onto a corner of the top part of the relay body inserted into the fitting part 12, with the locking claw 24 fitted to the socket body in free turning between a locking position where the locking claw 24 locks onto the corner of the relay body and a non-locking position where it comes off from the corner of the relay body. A pivotally supporting axis 23 is arranged so that the position of the locking claw 24 at the locking position and the non-locking position is located at the same side of a line segment L passing the pivotally supporting axis 23 pivotally supporting the detachable lever 20 to the socket body 10 in free rotation, and almost parallel with an insertion and removal direction of the relay main body. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a socket to which an electrical device such as a relay or a timer is detachably attached.

  As this kind of socket, as shown in FIG. 8, what is comprised by the socket main body 10 and a pair of detachable lever 20 is provided conventionally (for example, refer patent document 1).

  The socket body 10 is made of a synthetic resin molded product, is a flat horizontally long rectangular parallelepiped, and guides the left and right side portions of the relay body 41 from the upper edge ends on both sides along the longitudinal direction (left and right direction) upward. A guide piece 11 is integrally projected. Here, the space surrounded by the upper surface of the socket main body 10 and each guide piece 11 constitutes the fitting portion 12 into which the bottom side of the relay main body 41 is fitted, and the bottom surface of the fitting portion 12 (that is, the upper surface of the socket main body 10). ) Is provided with a plurality of connection terminals 30 electrically connected to a plurality of terminals (not shown) protruding from the bottom surface of the relay main body 41. Each connection terminal 30 protrudes downward from the lower surface of the socket body 10, and this protruding portion is a terminal for external connection.

  The detachable lever 20 is made of a synthetic resin molded product, and is disposed in a mounting groove (not shown) provided in the left and right ends of the upper surface of the socket body 10 so as to face the bottom surface of the relay body 41. A piece 29 and an arm portion 21 that protrudes in a substantially vertical direction from one end portion of the pressing piece 29 and is arranged to face the side surface of the relay main body 41 are formed in a substantially L shape. The detachable lever 20 is pivotally supported by the socket body 10 by pivotally supporting the pivot shaft 23 formed at the connecting portion with the bearing hole provided on the inner surface of the mounting groove.

  Here, the position of the detachable lever 20 when the relay is not attached is indicated by a dotted line in FIG. 8, and the tip end side of the arm portion 21 falls outward (in a direction away from the relay main body 41), and the pressing piece accordingly The tip of 29 protrudes upward from the upper surface of the socket body 10.

  When the relay is attached to the socket, when the relay main body 41 is inserted into the fitting portion 12 from the upper side in the figure with the surface from which the terminal protrudes downward, the tip of the pressing piece 29 is directed downward by the bottom surface of the relay main body 41. The demounting lever 20 is rotated so that the tip of the arm portion 21 is pushed and approaches the relay main body 41. When the relay main body 41 is inserted into the fitting portion 12 until the bottom surface of the relay main body 41 comes into contact with the upper surface of the socket main body 10, the detachable lever 20 rotates to the position indicated by the solid line in the figure, and the arm portion 21. The locking claw 24 provided on the upper side of the relay is locked to the upper corner of the relay main body 41 to prevent the relay main body 41 from coming off.

On the other hand, when removing the relay from the socket, when the upper portion of the arm portion 21 is moved outward (in a direction away from the relay main body 41) and the detaching lever 20 is rotated, the locking claw 24 is separated from the relay main body 41. As the detachable lever 20 rotates, the tip end side of the pressing piece 29 protrudes upward from the upper surface of the socket main body 10 and pushes the bottom surface of the relay main body 41 upward, so that the relay main body 41 is pushed out of the fitting portion 12 and the relay The main body 41 can be easily pulled out.
JP 2003-308770 A (paragraph numbers [0002], [0003] and FIG. 24)

  By the way, in the above-described socket, the locking claw 24 is in a state where the detaching lever 20 is rotated to a position where the locking claw 24 is locked to the upper corner of the relay body 41 (a position indicated by a solid line in FIG. 8). The pivot shaft 23 is arranged on the outer side (opposite to the relay main body 41) with respect to the position. That is, the position of the locking claw 24 in the locking position and the non-locking position is opposite to the line segment L that is substantially parallel to the insertion / extraction direction (D direction in the drawing) of the relay main body 41 through the pivot shaft 23. Located on the side. Therefore, when a force for pulling out the relay attached to the socket is directly applied to the relay main body 41 and a force for pushing the locking claw 14 upward (force in the A direction) is applied, the locking claw 24 is moved to the line segment L. A force (force in the B direction) is generated to move the detachable lever 20 outward so as to move it to the upper position, and the detachable lever 20 rotates in a direction in which the arm portion 21 moves away from the relay body 41. As a result, the locking claw 24 is detached from the upper corner of the relay main body 41 and the relay main body 41 is pushed upward by the tip of the pressing piece 29, so that the relay main body 41 may be detached from the socket. It was.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a socket in which an electric device is unlikely to come off even when a force for pulling out the electric device is directly applied to the device main body. It is in.

  In order to achieve the above object, the invention according to claim 1 is a fitting portion having a fitting portion into which a bottom portion side of an electric device from which a plurality of terminals protrude from the bottom surface of the device main body is fitted and facing the bottom surface of the device main body. A socket body having a plurality of connection terminals electrically connected to each terminal on the bottom surface thereof, and a locking portion that is detachably locked to a locked portion of the device body fitted in the fitting portion. A locking lever attached to the socket body so as to be rotatable between a locking position where the locking portion locks to the locked portion and a non-locking position where the locking portion separates from the locked portion. The locking lever at the locking position and the non-locking position with respect to a line segment that passes through a pivot shaft pivotally supported on the socket body and is substantially parallel to the insertion / extraction direction of the device body. The pivot shaft is arranged so that the position is on the same side.

  According to a second aspect of the present invention, in the first aspect of the invention, the end of the locking lever on the rotation center side is bifurcated to project the pivot shaft on the outer surface of each branch piece, An attachment groove into which each branch piece is inserted is provided on the bottom surface of the joint portion, and a bearing portion for pivotally supporting each pivot shaft is provided on the inner surface of the attachment groove.

  According to a third aspect of the present invention, in the second aspect of the invention, on the outer surface of the branch piece facing the inner surface of the mounting groove, the distance from the pivot shaft to the base side of the branch piece relative to the pivot shaft increases. A first inclined surface that generates a force that abuts against the socket body and deflects the branch piece inward when the locking lever is rotated from the locking position to the opposite side to the non-locking position when the amount of outward protrusion increases. Is formed.

  According to a fourth aspect of the present invention, in the third aspect of the invention, the portion of the socket body facing the first inclined surface is substantially parallel to the first inclined surface, and the locking lever is moved from the locking position to the non-locking position. A second inclined surface that contacts the first inclined surface when rotated to the opposite side is formed.

  According to the first aspect of the present invention, when a force to pull out the electric device is directly applied to the device main body when the electric device is attached, the pulling force is applied to the locking portion locked to the locked portion of the device main body. However, the pivot shaft is arranged so that the position of the locking portion at the locking position and the non-locking position is on the same side with respect to the line segment that is substantially parallel to the insertion / extraction direction through the pivot shaft. Therefore, when a pulling force is applied to the locking part, a force that moves the locking part to the position on the line segment is applied to the locking lever, and the locking lever is not locked from the locking position. There is an effect that it is attempted to rotate to the opposite side of the position, so that the locking state between the locking portion and the locked portion is not released, and the device main body can be prevented from falling off.

  According to the second aspect of the present invention, the pivot shaft that is pivotally supported by the bearing portion of the socket main body is formed in the branch piece that is bifurcated at the end portion on the rotation center side of the locking lever. By bending the branch piece, the pivot support shaft of the locking lever can be easily pivotally supported by the bearing section, and the branch piece has elasticity to ensure the rigidity of the socket body and hold the device body There is an effect that power can be secured.

  According to the third aspect of the present invention, when the locking lever is rotated beyond the locking position, the first inclined surface abuts against the socket body to generate a force that bends the branch piece inward. The lever for locking can be easily removed by removing the pivot shaft formed on the piece from the bearing portion.

  According to the fourth aspect of the present invention, when the locking lever is rotated beyond the locking position, the first inclined surface comes into contact with the second inclined surface to generate a force that bends the branch piece inward. Therefore, similarly to the third aspect of the invention, the locking lever can be easily removed by removing the pivot shaft formed on the branch piece from the bearing portion.

  Hereinafter, an embodiment in which the present invention is applied to a relay socket to which a relay is detachably mounted will be described with reference to the drawings. In the following description, unless otherwise specified, the vertical and horizontal directions are defined in the direction shown in FIG. 1, and the front of FIG.

  As shown in FIGS. 6 and 7, the relay socket according to the present embodiment is configured such that a horizontally long rectangular relay 40 is detachably attached, and a main body of the socket body 10 and a pair of detaching levers 20 is provided. Prepare as.

  The socket body 10 is made of a synthetic resin molded product, and has a flat, horizontally long rectangular parallelepiped shape as shown in FIGS. 4A to 4C. From the left and right ends of the upper edge on both sides along the longitudinal direction, the relay body 41 is provided. A substantially flat guide piece 11 that guides the left and right end portions of each side surface of the socket body protrudes upward. From the space surrounded by the upper surface of the socket body 10 and the four guide pieces 11, the bottom side of the relay body 41 is The fitting part 12 to be inserted is configured. A plurality of terminal holding holes penetrating the socket body 10 in the vertical direction are formed on the bottom surface of the fitting portion 12 (that is, the top surface of the socket body 10) at positions corresponding to the plurality of lead terminals 42 protruding from the bottom surface of the relay body 41. 13 is formed, and a connection terminal 30 electrically connected to the lead terminal 42 is press-fitted and fixed in each terminal holding hole 13. Each connection terminal 30 includes a spring receiving portion 31 disposed in the terminal holding hole 13 and electrically connected to the lead terminal 42, and a terminal portion 32 protruding downward from the lower surface of the socket body 10 through the terminal holding hole 13. This terminal portion 32 is a terminal for external connection. Two ribs 11a extending in the vertical direction protrude from the opposing surfaces of the pair of guide pieces 11 at the left and right end portions of the socket body 10 so as to face each other.

  On the other hand, the detachable lever 20 is made of a synthetic resin molded product, and has an arm portion 21 that is disposed so as to face the side surface along the short width direction of the relay main body 41 as shown in FIGS. The end portion (lower end portion) on the rotation center side of the arm portion 21 is divided into two portions, and a pressing piece 22 (branching piece) is formed in a direction substantially orthogonal to the arm portion 21 from the tip portion divided into the two portions. It protrudes.

  The front end sides of the pressing pieces 22 are arranged in parallel to each other, and a pivot shaft 23 projects from the outer surface of the parallel portion (the surface opposite to the surface facing each other). Further, on the outer surface of each pressing piece 23, an inclined surface (first inclined surface) is formed such that the amount of outward protrusion increases toward the base side with respect to the pivot shaft 23 as the distance from the pivot shaft 23 increases. 22a is formed, and the space | interval of the front end side of each press piece 23 is narrow compared with the base side.

  Further, an engaging claw 24 (an engaging portion) that engages with an upper corner (an engaged portion) of the relay main body 41 protrudes from an end portion (upper end portion) on the opposite side of the arm portion 21, and further, an arm portion. A locking protrusion 25 protruding in a lateral direction is provided at the intermediate portion in the vertical direction of 21.

  On the other hand, mounting grooves 14 and 14 into which a pair of pressing pieces 22 are inserted are respectively recessed at the left and right ends of the upper surface of the socket body 10, and a pivot shaft 23 is fitted on the inner surface of each mounting groove 14. A bearing hole 15 for pivotally supporting the detachable lever 20 is formed.

  In assembling this relay socket, when the detaching lever 20 and the socket body 10 are aligned and the pressing piece 22 of the detaching lever 20 is inserted into the mounting groove 14 of the socket body 10 from above, the pivot shaft 23 is attached. When the inner surface of the groove 14 is pressed, the pressing piece 22 is bent inward, and the pivot shaft 23 is fitted into the bearing hole 15 opened on the inner surface of the mounting groove 14. The detachable lever 20 is pivotally supported so as to be rotatable between a locking position where the main body 41 is locked at a corner and a non-locking position where the relay main body 41 is released from the corner. A taper surface 23a is formed on the lower half of each pivot shaft 23 so that the amount of protrusion decreases toward the lower side. With the taper surface 23a and the elasticity of the pressing piece 22, the detachable lever 20 is connected to the socket body. 10 can be easily attached.

  Next, a procedure for attaching / detaching the relay 40 to / from the relay socket having the above configuration will be described. The position of the detachable lever 20 when the relay is not attached is indicated by a dotted line in FIG. 7B, and the distal end side of the arm portion 21 falls outward (in the direction away from the relay main body 41), and the pressing piece accordingly The tip of 22 protrudes upward from the upper surface of the socket body 10.

  When connecting the relay to this socket, when the relay body 41 is fitted into the fitting portion 12 from above with the surface from which the lead terminal 42 protrudes facing downward, the tip of the pressing piece 22 faces downward by the bottom surface of the relay body 41. The demounting lever 20 rotates in the direction in which the arm portion 21 approaches the relay main body 41. When the relay main body 41 is inserted into the fitting portion 12 until the bottom surface of the relay main body 41 comes into contact with the upper surface of the socket main body 10, the detachable lever 20 rotates to the position indicated by the solid line in FIG. The locking claw 24 provided on the upper portion of the arm portion 21 is locked to the upper corner of the relay main body 41 to prevent the relay main body 41 from coming off. Further, when the detachable lever 20 is rotated to the locking position, the locking protrusion 25 of the detachable lever 20 gets over the outer rib 11a and fits between the pair of ribs 11a, so that a click feeling can be given. .

  On the other hand, when removing the relay 40 from the socket, when the upper portion of the arm portion 21 is moved outward (in the direction away from the relay main body 41) and the detachable lever 20 is rotated, the locking claw 24 is located above the relay main body 41. The tip of the pressing piece 22 protrudes upward from the upper surface of the socket body 10 and pushes the bottom surface of the relay body 41 upward as the detachable lever 20 rotates, so that the relay body 41 is fitted to the fitting portion. 12 and the relay main body 41 can be easily pulled out.

  By the way, in the conventional relay socket shown in FIG. 8, the position of the pivot shaft 23 is shifted toward the outside with respect to the position of the locking claw 24 with the detachable lever 20 rotated to the locking position (opposite to the relay body 41). In the present embodiment, as shown in FIG. 1, the pivot shaft 23 is positioned with respect to the position of the locking claw 24 in a state in which the detaching lever 20 is rotated to the locking position. Is located closer to the relay body 41. That is, the position of the locking claw 24 in the locking position and the non-locking position is the same with respect to the line segment L that passes through the pivot shaft and is substantially parallel to the insertion / extraction direction of the relay main body 41 (D direction in FIG. 1). The pivot shaft 23 is arranged so as to be located on the side. Therefore, when a force for pulling out the relay 40 is directly applied to the relay main body 41 when the relay 40 is mounted, the pulling force (FIG. 1) is applied to the locking claw 24 locked to the upper corner of the relay main body 41. When a force in the direction A) is applied, a force that moves the locking claw 24 to a position on the line segment L is applied to the detachable lever 20. Since the pivot shaft 23 is arranged so that the position of the locking claw 24 in the position is on the same side, the force to rotate the detaching lever 20 from the locking position to the side opposite to the non-locking position. (Force in the B direction in FIG. 1) acts, so that the locking state between the locking claw 24 and the corner of the relay main body 41 is not released, and the relay main body 41 can be prevented from falling off.

  Further, in the socket described in the background art, since the position of the pivot shaft 23 is arranged on the outer side with respect to the position of the locking claw 24, the pivot shaft 23 is arranged on the socket body 10 side as shown in FIG. Even if the slit 17 is formed outside the portion where the bearing hole 16 is pivotally supported and the portion where the bearing hole 16 is formed (bearing piece 18) is made elastic, the relay body 41 is inserted. The rigidity of the fitting portion 12 is not affected, and it is possible to easily lock the bearing hole 16 and the pivot shaft 23 by bending the bearing piece 18. Since the pivot shaft 23 is arranged closer to the inner side (closer to the relay body 41) than the position 24, if the socket body 10 is made flexible to pivot the pivot shaft 23, the relay The rigidity of the fitting portion 12 into which the lower side portion of the main body 41 is fitted is reduced, and the relay Retention body 41 might not be sufficiently obtained. Therefore, in the present embodiment, the lower end portion of the detachable lever 20 is bifurcated, the pressing pieces 22 are protruded from the bifurcated tip portions, and the pivot shaft 23 is formed on the outer surface of each pressing piece 22. Since the slit 22b is provided between the portions where the pair of pivot shafts 23 are respectively formed (pressing pieces 22), the portion (pressing piece 22) where the pivot shafts 23 are projected is given elasticity. It is not necessary to give elasticity to the socket body 10 side by bending the pressing piece 22 side, so that the rigidity of the socket body 10 can be secured and the holding force of the relay body 41 can be sufficiently secured. Become.

  It should be noted that the outer surface of the pressing piece 22 that faces the inner surface of the mounting groove 14 is located on the base side of the pressing piece 22 with respect to the pivot shaft 23 as the distance from the pivot shaft 23 increases. ) And when the detaching lever 20 is rotated from the locked position to the opposite side of the non-locked position, a force that abuts against the socket body 10 and deflects the pressing piece 22 inward is generated. An inclined surface 22a is formed. Further, the inner surface of the mounting groove 14 facing the inclined surface 22a is substantially parallel to the inclined surface 22a. When the detaching lever 20 is rotated from the locking position to the side opposite to the non-locking position, the inclined surface 22a is applied. An inclined surface (second inclined surface) 14a in contact therewith is formed. Thus, when the detaching lever 20 is rotated from the locking position to the opposite side to the non-locking position, the inclined surface 22a of the pressing piece 22 comes into contact with the inclined surface 14a provided on the inner surface of the mounting groove 14. Since the pressing piece 22 is bent inward (in a direction away from the inner surface of the mounting groove 14) and the pivot shaft 23 of the pressing piece 22 is detached from the bearing hole 15, the detachable lever 20 is easily removed from the socket body 10. Therefore, the replacement of the detachable lever 20 can be easily handled.

  In this embodiment, a relay socket in which a relay is detachably mounted has been described as an example. However, even if the technical idea of the present invention is applied to a socket in which an electrical device such as a timer other than the relay is mounted. It goes without saying that it is good.

It is a front view of the socket of this embodiment. It is an exploded perspective view same as the above. It is an external appearance perspective view same as the above. The socket main body used for the above is shown, (a) is a front view, (b) is a side view, and (c) is a bottom view. The detachable lever used for the above is shown, (a) is a front view, (b) is a top view, and (c) is a side view. The state which attached the relay on the same is shown, (a) is an external appearance perspective view, (b) is a front view. The state which removed the relay from the same is shown, (a) is an external appearance perspective view, (b) is a front view. It is a front view of the conventional socket. It is a disassembled perspective view which can abbreviate | omit a part of conventional socket.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Socket main body 12 Fitting part 20 Desorption lever 23 Pivoting shaft 24 Locking claw L Line segment

Claims (4)

A plurality of terminals electrically connected to the respective terminals on the bottom surface of the fitting portion having a fitting portion into which the bottom side of the electric device from which the plurality of terminals protrude from the bottom surface of the device main body is fitted. A socket body provided with connection terminals of
A locking position in which the locking portion is detachably locked to the locked portion of the device main body fitted in the fitting portion, and the locked position where the locking portion locks to the locked portion and the locked A locking lever attached to the socket body so as to be rotatable between the non-locking position where it is detached from the stopper,
The locking lever and the non-locking position with respect to a line segment that passes through a pivot shaft that pivotally supports the locking lever on the socket body and is substantially parallel to the insertion / removal direction of the device body. The socket characterized in that the pivot shaft is arranged so that the position of the locking portion is located on the same side.   The end of the locking lever on the rotation center side is bifurcated to project the pivot shaft on the outer surface of each branch piece, and each branch piece is inserted into the bottom surface of the fitting portion. The socket according to claim 1, wherein a mounting groove is provided, and a bearing portion that pivotally supports each pivot shaft is provided on an inner surface of the mounting groove.   On the outer side surface of the branch piece facing the inner side surface of the mounting groove, the amount of protrusion to the outside increases as the distance from the pivot shaft increases to the portion on the base side of the branch piece with respect to the pivot shaft. When the locking lever is rotated from the locking position to the opposite side to the non-locking position, a first inclined surface is formed that generates a force that abuts the socket body and deflects the branch piece inward. The socket according to claim 2. When the lock lever is rotated from the locking position to the opposite side to the non-locking position, the socket main body portion facing the first inclined surface is substantially parallel to the first inclined surface, The socket according to claim 3, wherein a second inclined surface abutting on the first inclined surface is formed.

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