JP3864667B2 - Ejector mechanism and socket - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an ejector mechanism used for removing a relay such as a small switch or a multi-pole socket, and more specifically, an ejector mechanism capable of easily removing a relay from a socket body and improving the handling performance of the relay, and Regarding sockets.
[0002]
[Prior art]
In general, this type of ejector mechanism inserts a relay terminal into a terminal connection portion of a socket body to connect the socket body and the relay integrally, and an ejector for removing the relay is interposed between the connection portions. When removing the relay for inspection or replacement, etc., the ejector is operated and external force is applied in the direction of pulling out the relay to remove it from the socket body.
[0003]
In this case, in order to pull out the relay from the socket body, a small force is converted into a large pulling force by using the “lever principle” of an ejector attached to the socket body.
[0004]
However, the action point of the ejector using this “lever principle” is the structure in which one point contacts and applies the drawing force even during the drawing operation of the relay, and this action is applied as the relay starts to move and moves. The point of contact is different during the relay pulling operation, and the ejector's pulling force is applied in a different direction slightly inclined from the relay's pulling direction. As a result, the load concentrates on the ejector's working point and is easily damaged. It was.
[0005]
In particular, relays having the same size and different number of poles are serialized, but if the number of poles of the connected terminals is large, the force required to pull out the relay is proportionally increased. Accordingly, the tilting operation force applied to the ejector itself is similarly increased, and the action point of the ejector requires high strength.
[0006]
However, at present, when the number of poles increases, many terminals are concentrated on a limited area, and the space for placing the action point of the ejector is restricted, so that a sufficient strength shape cannot be obtained. The action point of the ejector is easily broken, and when it is broken, the ejector cannot be removed, and the ejector strength necessary for pulling out the multi-pole relay cannot be sufficiently provided.
[0007]
[Problems to be solved by the invention]
Therefore, the present invention pays attention to the gradual displacement of the action point of the ejector utilizing the lever principle when the relay is pulled out, and by gradually displacing the action point, the relay is linearly moved from the beginning to the end along the drawing direction. An object of the present invention is to provide an ejector mechanism and a socket in which a smooth and highly reliable pulling-out operation can be obtained because a force is applied to the shape of the ejector, and the operation point of the ejector is maintained at a constant load from the beginning and is not damaged.
[0008]
[Means for Solving the Problems]
The present invention is an ejector mechanism comprising an ejector that pulls out and removes the relay from the socket body when the relay attached by inserting a plurality of terminals into the socket body is removed. when the socket body mounted to accommodate the plan view, in the lower side with respect to the relay, the relay receiving portion which is pivotally supported to the socket body via the shaft support having an axis at a position that overlaps with the relay A rectangular opening that is at the bottom of the relay housing and opens the mounting surface of the relay to the socket body and allows the relay to be mounted on the socket body; and an edge of the opening And a push-up curve in which a part of the arc surface is in contact with the mounting surface side of the relay interposed between the mounting surfaces of the socket body and the relay. When, and a tilting permissible means for tilting permit the ejector to the shaft support the fulcrum of inclination, when the tilting of the ejector according to the tilting permissible means, gradually displacing the contact position between the push-up curved surface and the relay mounting surface However , the relay is moved in a push-up direction away from the socket body .
[0009]
As a result, with respect to the linear pulling movement amount in the relay pulling direction, the tilting displacement amount of the push-up heel surface that operates by tilting displacement becomes extremely small, so the relay pull-out direction and the push-up heel surface push-up direction are substantially the same direction. Can be kept in.
[0010]
Therefore, when a pulling force is applied to the relay in accordance with the tilting of the ejector, the pushing-up curved surface corresponding to the action point of the ejector using the lever principle follows this pulling movement even if the relay begins to be gradually pulled in the pulling direction. Thus, the displacement direction is gradually increased so that the pushing-up direction of the pushing-up scissors curved surface and the drawing-out direction of the relay can be made consistent throughout, and a smooth drawing operation can be obtained. In particular, when the relay is pulled out, the operating point moves from a position near the tilting fulcrum to a position far from the tilting fulcrum, so that a small operating force is required when operating the ejector, and the load on the ejector can be reduced.
[0011]
In particular, since the contact position of the push-up scissors curved surface is gradually displaced to apply a pulling force in the same direction as the relay pull-out direction, the load on the push-up scissors curved surface is kept constant and a stable pulling force can be obtained. In addition, this push-up saddle curved surface comes into fluid contact with tilting, and the drawing angle is kept at the same angle from beginning to end, so that the drawing load is not concentrated locally, and stress such as bending to the terminal is minimized. It is possible to achieve a highly durable ejector that suppresses the risk of damage and the like.
[0012]
Further, even if the number of terminals increases due to multipolarization and a large pulling force is required, a linear force is continuously applied in the same direction as the relay pulling direction, so that the relay is stably pulled out substantially vertically. For this reason, the removal performance of the relay can be improved even when the number of poles is increased.
[0013]
In addition, if the push-up scissors curved surface formed on the ejector is provided on both sides facing the relay mounting surface, the single relay should be lifted from both sides in a balanced manner to provide an even pulling force on the relay mounting surface. Can be granted.
[0014]
Further, when a tilting operation pressing piece is formed at the outer end of the ejector, the ejector can be tilted and the relay can be easily removed and operated simply by tilting the pressing piece with a fingertip.
[0015]
If such an ejector mechanism is provided in the socket, the relay connected to the socket can be smoothly attached and detached to facilitate handling, and the relay attachment / detachment operation performance and the ejector protection performance can be improved. Can be planned.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described below in detail with reference to the drawings.
The drawing shows a multipolar socket. In FIGS. 1 to 3, the multipolar socket 11 is configured by mounting an ejector 13 and a relay 14 on the upper surface of a rectangular socket body 12.
[0017]
The socket body 12 described above has an ejector mounting portion 15 and a relay mounting surface 16 at the center of the upper surface, and has a large number of opening connection portions 17 for mounting the cable in a plug-in manner at both positions on the upper surface in the longitudinal direction. Yes.
[0018]
The ejector mounting portion 15 is provided with a U-shaped storage groove 18 for storing the lower portion of the ejector 13 and opens shaft support holes 19 communicating with the U-shaped storage groove 18 on both side surfaces of the socket body 12, which will be described later. The ejector 13 is pivotally supported so as to freely tilt.
[0019]
The relay mounting surface 16 is formed corresponding to the lower surface of the relay 14 at a position surrounded by the above-described U-shaped storage groove 18, and the upper surface is aligned vertically and horizontally (for example, 4 rows × 4 rows) for insertion of multipolar terminals. The terminal connection port 20 is provided.
[0020]
Further, a mounting recess 21 and a mounting mechanism 22 that are notched in a concave shape are provided in the center of the bottom surface of the socket body 12, and are attached to various mounting rails and the like (not shown) via the mounting recess 21 and the mounting mechanism 22.
[0021]
The above-described ejector 13 has an ejector function of pulling out and removing the relay 14 mounted on the upper surface of the socket body 12 from the socket body 12. The above-described ejector 13 has a tiltable space in the U-shaped storage groove 18 of the socket body 12. The pivot shafts 24 are respectively provided on the outer surfaces of the L-shaped side plates 23 located on both sides of the socket body 24 so that the pivot shafts 24 on both sides project into the pivot support holes 19 of the socket body 12 described above. The shaft 13 is pivotally supported, and the ejector 13 is tilted freely in the longitudinal direction of the socket body 12 with the both shaft support holes 19 as tilting fulcrums.
[0022]
Each inner surface side of each side plate 23 has an arch-shaped push-up curved surface 25 that is bent in a chevron shape. The push-up curved surface 25 has a narrow width that extends from the pivot shaft 24 side to the tip along the side plate 23. It is formed on an arc surface, and the position on the pivot shaft 24 side is set high for initial contact with the relay 14 and the tip side is set low. Thereby, when the relay 14 to be described later is attached, the relay 14 is attached in a state where a part of the lower face of the attached relay 14 is in contact with the push-up scissors curved surface 25 at a high position.
[0023]
When the ejector 13 is tilted with the pivot shaft 24 as a tilting fulcrum, the push-up saddle curved surface 25 pushes up a relay 14 described later while gradually displacing the contact position from a high position to a low position, thereby pulling it out. .
[0024]
Further, a rectangular terminal opening window 26 for allowing a later-described relay 14 to be attached and detached is opened at the lower center of the ejector 13. A push piece 27 for tilting operation is formed on the upper side of the ejector 13 so that the ejector 13 supports the pivot shaft 24 only by pressing the push piece 27 outward in the longitudinal direction with a fingertip. In response to this, the relay 14 is removed.
[0025]
The above-described relay 14 is formed in a small rectangular body that can be mounted on the socket body 12, and a number of multipolar terminals 29 are suspended from the lower surface 28 of the relay 14. Are connected in a plug-in manner, corresponding to each terminal connection port 20 of the socket main body 12, by pushing down from below and connecting.
[0026]
At this time, as shown in FIG. 4, both side edge portions 28a of the lower surface 28 of the relay 14 are in contact with the double push-up scissors curved surface 25 positioned on both sides of the ejector 13 described above. Is pushed further and attached to the upper surface of the socket body 12 as shown in FIG.
[0027]
When the relay 14 is attached to the socket main body 12 via the ejector 13, the leaf springs in which the terminals 29 of the relay 14 are opposed to the inner sides of the terminal connection ports 20 of the socket main body 12 as shown in FIG. They are connected in a state of being inserted into the sandwiched contact 30.
[0028]
As shown in FIGS. 3 to 5, the multipolar socket 11 configured as described above is normally used in a state where a relay 14 is integrally mounted on a socket body 12 via an ejector 13. When removing the relay 14 of the multipolar socket 11 from the socket body 12 for inspection, replacement, etc., as shown in FIG. 6, first, the operator pushes the push piece 27 with the fingertip to tilt the ejector 13 backward. start.
[0029]
At this time, when the push-up scissors curved surface 25 located on both sides of the ejector 13 pushes up the lower surface 28 of the relay in contact with the upper surface and tilts the pivot shaft 24 to the tilting fulcrum, the pivot shaft 24 As shown in FIG. 7, the contact position with the relay 14 is the center of the lower surface 28 of the relay as shown in FIG. 7. The relay 14 is pushed up stably in the vertical direction without being greatly displaced.
[0030]
In this case, since the amount of tilt displacement of the push-up scissors curved surface 25 that operates by tilting displacement is extremely small with respect to the linear pull-out movement amount in the relay pull-out direction, the pull-out direction of the relay 14 and the push-up direction of the push-up scissors curved surface 25 are approximately. It can be set in the same direction.
[0031]
Further, the push-up scissors curved surface 25 fluidly comes into contact with the tilt, and the pulling angle is kept at the same angle from beginning to end, so that the pulling load is not concentrated locally and the possibility of breakage is eliminated. A durable ejector 13 can be realized.
[0032]
Further, the number of terminals increases due to the increase in the number of poles, and a large pulling force is required. However, since a linear force is continuously applied in the same direction as the pulling direction of the relay 14, the relay 14 is stably pulled out substantially vertically. In particular, since stress such as bending on the terminals can be suppressed to a minimum, the removal performance of the relay 14 suitable for the multipolar socket 11 can be obtained.
[0033]
In addition, since the push-up scissors curved surface 25 formed on the ejector 13 is provided on both side positions facing the mounting surface of the relay 14, the single relay 14 is pushed up from both sides in a balanced manner to the mounting surface of the relay 14. An even pulling force can be applied.
[0034]
As shown in FIG. 8, when the ejector 13 is largely tilted, the terminal 29 of the relay 14 is detached from the contact 30 and completely removed from the socket body 12, and the pulling-out operation of the relay 14 is completed.
[0035]
As described above, when a pulling force is applied to the relay in accordance with the tilting of the ejector, the push-up scoring surface corresponding to the action point of the ejector using the lever principle does not move even when the relay starts to be pulled out. Accordingly, the pushing-up direction of the push-up scissors curved surface can be made consistent with the drawing-out direction of the relay from start to finish, so that a smooth drawing operation can be obtained.
[0036]
In correspondence between this invention and the configuration of the above-described embodiment,
The socket of the present invention corresponds to the multipolar socket 11 of the embodiment,
Similarly,
The shaft support portion corresponds to the shaft support hole 19 and the pivot shaft 24,
The tilting permission means corresponds to the shaft support hole 19, the pivot shaft 24, and the U-shaped storage groove 18 for tilting and holding the ejector 13 ,
The relay accommodating portion corresponds to a space constituted by the L-shaped side plates 23 of the ejector 13, the push-up saddle curved surface 25, and the terminal opening window 26,
The opening corresponds to the terminal opening window 26 ,
The present invention can be applied based on the technical idea shown in the claims, and is not limited to the configuration of the above-described embodiment.
[0037]
【The invention's effect】
According to the present invention, the contact position of the lifted saddle curved surface is gradually displaced to apply a pulling force in the same direction as the relay pulling direction, so that the load on the lifted saddle curved surface is kept constant and a stable pulling force is obtained. It is done. In addition, this push-up scissors curved surface comes into fluid contact with tilting, and the pulling angle is kept at the same angle from beginning to end, so the pulling load is not concentrated locally and the possibility of breakage is eliminated. Can be realized.
[0038]
In particular, according to the first aspect of the present invention, the space on the rear side of the relay, which is required for the ejector to tilt with respect to the socket body, can be greatly reduced. For this reason, when the relay is attached to and detached from the socket body, the tilted and ejected ejector can be prevented from interfering with devices around the socket body, and the relay can be easily attached to the socket body. The effect that it can be made to attach or detach can be produced.
[0039]
According to the invention described in claim 1, the push-up saddle curved surface that serves as a force point for pushing up the relay is arranged on the center side of the bottom surface of the relay, and the shaft support portion can be configured close to the push-up saddle curved surface. can Ru. In this way, the distance between the lifting saddle curved surface and the shaft support portion can be set small with the lifting saddle curved surface arranged on the center of the bottom surface, so that the relay itself and the multi-pole socket are not loaded. In addition to the effect that the lever can be pushed upward, the “principle principle” can be utilized more effectively, and the effect that the lever can be pushed more efficiently with a small force can be achieved.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a multipolar socket as viewed from above.
FIG. 2 is a developed perspective view of a multipolar socket as viewed from below.
FIG. 3 is an external perspective view of a multi-pole socket assembled.
FIG. 4 is a longitudinal front view showing the internal structure of the multipolar socket.
FIG. 5 is a longitudinal side view showing the internal structure of the multipolar socket.
FIG. 6 is a longitudinal side view showing an initial drawing state of the multi-pole socket.
FIG. 7 is a longitudinal side view showing a completed drawing state of the multi-pole socket.
FIG. 8 is an external perspective view showing a completed drawing state of the multipolar socket.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 ... Multipolar socket 12 ... Socket main body 13 ... Ejector 14 ... Relay 18 ... U-shaped storage groove 19 ... Shaft support hole 24 ... Pivot shaft 25 ... Push-up hook curved surface 27 ... Push piece 28 ... Relay lower surface 28a ... Both sides edge part 29 ... Terminal

Claims (4)

An ejector mechanism comprising an ejector that pulls out and removes the relay from the socket body when removing the relay attached by inserting a plurality of terminals into the socket body,
The ejector is
A plan view of the socket body mounted to accommodate the relay inside, the lower side with respect to the relay, is supported by a socket body through the shaft support having an axis at a position that overlaps with the relay Relay housing
A rectangular opening at the bottom of the relay housing, opening a mounting surface of the relay to the socket body, and allowing the relay to be mounted on the socket body;
And forming an edge of the opening, a push-up scissor curved surface that is interposed between the mounting surfaces of the socket body and the relay and a part of the arc surface contacts the mounting surface side of the relay;
And a tilting permissible means for tilting allow the ejector to tilt pivot the shaft support,
When the ejector is tilted by the tilt permitting means , the relay is moved in the push-up direction away from the socket body while gradually moving the contact position between the push-up saddle curved surface and the relay mounting surface. Ejector mechanism. The ejectors, ejector mechanism of claim 1, wherein the said push-up curved surface is formed on both sides the position corresponding to the mounting surface of the relay. The ejector mechanism according to claim 1 or 2, wherein the ejector is formed with a pushing piece for tilting operation at an outer end portion.   A socket comprising the ejector mechanism according to claim 1, 2 or 3.

Images