JP4866034B2 - Terminal equipment - Google Patents

Description

  The present invention relates to a terminal device including a plurality of terminal portions having a quick connection terminal structure.

  Conventionally, a terminal device as shown in FIG. 7 has been provided so that an electric wire connected to a load and an electric wire connected to a power source can be easily connected (see, for example, Patent Document 1). Hereinafter, the vertical direction is based on FIG. 7, and the upper left-lower right direction in FIG. 7 is referred to as the left-right direction, and the lower left-upper right direction in FIG.

  This terminal device has a housing 1 provided with a plurality of electric wire insertion openings 24 into which electric wires are respectively inserted. The housing 1 includes a body 10 made of a synthetic resin molded product and having a storage recess 13 provided on an upper surface thereof, and a cover 20 made of a synthetic resin molded product and coupled to the body 10 to cover the storage recess 13.

  In addition, two partition walls 12 that are long in the front-rear direction protrude from the bottom surface of the storage recess 13, and the storage recess 13 is divided by the partition wall 12 into three storage chambers 13 a to 13 c arranged side by side. .

  Among the storage chambers 13a to 13c, the rightmost storage chamber 13a is connected with a grounding conductive block 31 to which a load ground line is connected and grounded, and the other two storage chambers 13b and 13c are connected to loads. The voltage conductive block 32 to which the electric wire to be connected and the electric wire connected to the power source are connected is accommodated. Each of the conductive blocks 31 and 32 has two terminal portions 34 to which electric wires inserted from the electric wire insertion ports 24 are connected. A load ground wire is connected to the terminal portion 34 of the ground conductive block 31, and electric wires having different polarities are connected to the terminal portion 34 of each voltage conductive block 32.

  As shown in FIG. 8A, each terminal portion 34 includes a side piece 35b protruding upward from one end in the short direction of the main piece 35a, and the same side as the main piece 35a from the front edge of the side piece 35b. A base piece 35c projecting from the base piece 35c, and a locking piece 35d projecting rearward from the base piece 35c and inclined upward toward the rear end and having a spring property up and down. The rear edge of the locking piece 35d is notched at the end close to the side piece 35b and is provided with a locking edge 35e, and the portion not cut off at the rear edge of the locking piece 35d is downward. It is bent. In addition, a semi-cylindrical guide piece 35f, which is a part of a cylinder whose central axis is directed in the front-rear direction and has a convex upper surface, projects from the upper end of the side piece 35b on the same side as the locking piece 35d. Has been. The central axis of the guide piece 35f is inclined upward toward the front. Further, the side piece 35b is provided with a connection piece 35g located between the main piece 35a and the locking piece 35d. The connection piece 35g has a front end portion connected to the side piece 35b, a rear portion inclined upward toward the rear, and has a spring property up and down.

  Then, as shown in FIG. 8B, the electric wire inserted from the electric wire insertion port 24 is pressed against the guide piece 35f by the connecting piece 35g and brought into contact with the terminal portion 34, and the locking edge 35e bites in. Locked out (locked). That is, the guide piece 35f is a terminal plate in the claims. Here, the rear end portion of the connection piece 35g is bent so that the upper surface in contact with the electric wire has a convex curved surface so that the connection piece 35g is not caught by the electric wire. Further, the movement of the locked electric wire 37 in the left-right direction is restricted by the step formed by the notch provided at the rear end edge of the locking piece 35d and the concave curved surface of the guide piece 35f.

  The housing 1 is provided with a plurality of release buttons 25 for pressing the lock pieces 35d and releasing the locks. Each release button 25 is separated from other parts of the cover 20 except for the front end by a U-shaped slit, and can swing up and down with respect to the other parts of the cover 20.

  More specifically, the release button 25 is formed thinner than the other part of the cover 20 and has a spring property, and is supported to be swingable with respect to the other part of the cover 20 via the support part 25a. Button body 25b. As shown in FIGS. 9 (a) and 9 (b), the button main body 25b is located on the upper side of the partition wall 12 and exposed downward from the left and right ends of the connecting portion 25c. It has a projecting convex portion 25d, and has a U-shaped cross section that opens downward. In the release button 25 on the left side, the convex portions 25d are positioned above the locking pieces 35d of the different voltage conductive blocks 32 on different sides across the left partition wall 12. In the right release button 25, the right convex portion 25d is positioned above the locking piece 35d of the ground conductive block 31, and the left convex portion 25d is sandwiched between the one partition wall 12 and the right protruding portion 25d. Located on the opposite side of.

When unlocking the electric wire 37 inserted in the electric wire insertion hole 24, as shown in FIG. 9A and FIG. 10, a connecting portion of the release button 25 is used by using a jig 43 such as a minus driver, for example. When 25c is pushed downward, the locking piece 35d is pressed downward by the convex portion 25d and elastically deformed, as shown by the broken lines in FIG. 9B and FIG. Then, the locking piece 35d is separated from the guide piece 35f, the locking is released, and the electric wire 37 can be pulled out from the electric wire insertion hole 24. Here, since the release button 25 on the left side straddles the locking pieces 35d of the two voltage conductive blocks 32, if the release button 25 on the left side is pressed, the locks in the two electric wire insertion holes 24 on the voltage side are locked. Can be canceled at the same time. Further, if the release button 25 on the right side is pressed, the lock in the wire insertion hole 24 on the ground side can be released. After the unlocked electric wire 37 is pulled out, if the pressing force to the release button 25 is released, the release button 25 is restored by the spring force of the support portion 25a, and the lock piece 35d is caused by its own spring force. Return.
JP 2000-243477 A

  By the way, when the left release button 25 corresponding to the two terminal portions 34 is rattled to be tilted to the left and right when pressed, the operation width of the release button 25 necessary for releasing the lock If the degree of inclination is large, there is a possibility that only the lock of one terminal portion 34 is released and the lock of the other terminal portion 34 is not released. In order to prevent such a situation and to ensure that the locks at the two terminal portions 34 can be released with a single pressing operation on the release button 25, the movable range of the release button 25 is made relatively large. Although it is necessary, if the movable range of the release button 25 is increased, there is a possibility that the locking piece 35d is deformed more than necessary to cause a settling.

  On the other hand, in order to suppress the rattling of the release button 25 as described above, the opposing surfaces of the convex portion 25 d of the release button 25 may be guided by the left and right surfaces of the partition wall 12. In order to realize this, the distance between the convex portions 25d of the release button 25 is brought close to the horizontal dimension of the partition wall 12 (hereinafter referred to as “width dimension”), and the left and right surfaces of the partition wall 12 are convex. It is necessary to reduce the distance between the opposing surfaces of the portion 25d.

  However, since it is necessary to secure a distance between the voltage conductive blocks 32 in order to ensure insulation between the voltage conductive blocks 32, the left side release that simultaneously unlocks the terminal portions 34 of these voltage conductive blocks 32 In the button 25, it is necessary to secure the distance between the surfaces of the convex portions 25d facing away from each other. For this reason, conventionally, the distance between the convex portions 25d of the left release button 25 is larger than the width dimension of the partition wall 12, and the gap between the opposing surfaces of the convex portions 25d and the partition wall 12 is large. It was.

  As a method of making the distance between the convex portions 25d close to the width dimension of the partition wall 12 while securing the distance between the surfaces of the convex portions 25d facing each other, a method of increasing the width dimension of the convex portions 25d, A method of increasing the width dimension is conceivable. However, in any of the above methods, sink marks and warps generated during molding increase as the width dimension increases, and the dimensional accuracy decreases, and the release button 25 is caught by the partition wall 12 and other parts of the cover 20 and chained. It becomes easy to happen that the lock cannot be released smoothly.

  The present invention has been made in view of the above reasons, and an object of the present invention is to provide a terminal device that can suppress rattling of a release button.

The invention according to claim 1 is provided with a body provided with a storage recess and a cover that is coupled to the body and covers the storage recess, and is provided with a plurality of wire insertion ports that are respectively connected to the storage recess and into which electric wires are inserted. A housing, and a plurality of terminal portions that are arranged at positions facing the electric wire insertion openings in the housing in the housing recesses and are connected to the electric wires introduced into the housing through the electric wire insertion openings, each terminal portion, A terminal plate that contacts and conducts the electric wire introduced into the housing through the electric wire insertion port, and a locking spring that locks the electric wire introduced into the housing through the electric wire insertion port between the terminal plate, A partition part is provided for partitioning between terminal parts to which electric wires of different polarities are connected, and the partition part is composed of a plurality of partition walls facing each other with a gap in the direction in which the terminal parts are arranged, The operating part that is exposed outside the wing and receives the pressing force from the outside of the housing, and the pressing force received by the operating part are transmitted to the locking springs on the different terminal parts across the partition part to release the lock. Each of the release portions is a convex portion, and the width dimension of the clearance between the release portions of the release button is larger than the width dimension of the partition portion sandwiched between the release portions. slightly rather large, wherein the facing surfaces of the respective release unit is guided by the partition wall, respectively.

  According to the present invention, unlike the case where the partition wall between the terminal portions is a single sheet, the distance between the release portion of the release button and the partition wall is reduced without causing a reduction in dimensional accuracy. The rattling can be suppressed. Moreover, compared with the case where a partition part is comprised with one partition wall, generation | occurrence | production of the tracking between terminal parts can be suppressed.

  The invention of claim 2 is characterized in that, in the invention of claim 1, it has a partition portion comprising two partition walls.

  The invention of claim 3 is characterized in that, in the invention of claim 1 or 2, it has a release button integrated with the cover as a synthetic resin molded product.

  According to the present invention, the number of parts can be reduced as compared with the case where the release button is constituted by another part.

  According to the present invention, since the plurality of partition walls facing each other with a gap are provided between the terminal portions that are unlocked simultaneously by one release button, one partition wall between the terminal portions is provided. Unlike the case described above, the distance between the release portion of the release button and the partition wall can be reduced and the rattling of the release button can be suppressed without reducing the dimensional accuracy. Moreover, compared with the case where a partition part is comprised with one partition wall, generation | occurrence | production of the tracking between terminal parts can be suppressed.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

In this embodiment, as shown in FIGS. 2 (a) and 2 (b), a plurality (eight in the figure) of wire insertion ports 24 into which the wires 37 (see FIG. 8 (b)) are respectively inserted are provided. A housing 1 is provided. Hereinafter, the vertical direction will be described with reference to FIG. 2A, with the lower left-upper right direction in FIG. 2A being the left-right direction and the lower right-upper left direction in FIG.

  The housing 1 includes two sets of power supply terminal blocks 2 and 3 provided side by side and a set of load terminal blocks 4 provided on the rear side of the power supply terminal blocks 2 and 3. One of the two sets of power terminal blocks 2 and 3 is provided for connecting an electric wire from a power source, and the other is provided for connecting an electric wire for feed wiring. Usually, an electric wire from the power source is connected to the power terminal block 2 on the front side, and an electric wire for feed wiring is connected to the power terminal block 3 on the rear side. Each power terminal block 2 and 3 has an upper surface inclined so that the vertical width dimension decreases from the position where the vertical width dimension becomes the largest in the front-rear direction, and the electric wire insertion port 24 is inclined forward. Three are arranged side by side on the surface. Among the wire insertion ports 24, the ground wire is inserted into the right one wire insertion port 24, and wires having different polarities are inserted into the two left wire insertion ports 24. The load terminal block 4 is provided on the rear side of the two left wire insertion ports 24.

  Further, as shown in FIG. 3, the housing 1 is composed of a synthetic resin molded product body 10 provided with a housing recess 13 on the upper surface, and a synthetic resin molded product 10 that is coupled to the body 10 and covers the housing recess 13. 1 and a cover 20 constituting the upper surface of one. The cover 20 has a peripheral wall surrounding the body 10 when viewed from below. Assembly holes 21 are provided in the front and rear peripheral walls of the cover 20, and assembly claws 11 project from the front and rear surfaces of the body 10, respectively. By engaging, the body 10 and the cover 20 are coupled. Each wire insertion port 24 is provided in the cover 20 and communicates with the storage recess 13 when the body 10 and the cover 20 are coupled. Further, the front end of the upper wall of each wire insertion opening 24 is provided with a notch 24a opened up and down, thereby making it easier to insert the wire 37 into the wire insertion opening 24. .

  Further, two leg pieces 27 for attaching the housing 1 to a fixture main body (not shown) such as a lighting fixture are provided so as to protrude from the front and rear ends of the cover 20 so as to be opposed to the left and right respectively. Each leg piece 27 is inclined in the direction of narrowing the interval downward. Each leg piece 27 protrudes downward from the body 10, and a hook 27 a protrudes left and right outward from the protruding portion. The protruding dimension of the hook 27a increases upward. When the housing 1 is attached to the fixture body of the lighting fixture, each leg piece 27 is elastically deformed in a direction approaching each other, and is inserted into an attachment hole (not shown) penetrating the fixture body. When the respective leg pieces 27 are restored when passing through the mounting holes and the hooks 27a are hooked on the instrument body, the housing 1 is fixed to the instrument body. Further, 10a to be inserted into a hole (not shown) provided in the instrument body protrudes from the lower surface of the body 10.

  As shown in FIG. 4, the storage recess 13 is divided into three storage chambers 13 a to 13 c arranged side by side by a partition wall 12 that protrudes upward from the inner bottom surface in the front-rear direction. Here, between the storage chambers 13a to 13c adjacent to each other, two partition walls 12 facing each other with a gap in the left-right direction in which the storage chambers 13a to 13c are arranged are provided.

  Among the storage chambers 13a to 13c, the ground conductive block 31 is stored in the rightmost storage chamber 13a, and the voltage conductive block 32 is stored in each of the other two storage chambers 13b and 13c. The two voltage conductive blocks 32 are symmetrical to each other in the left-right direction.

  The ground conductive block 31 and each voltage conductive block 32 are respectively long and longitudinally placed on the bottom surface of the storage recess 13 and a main piece 35a and two terminal portions 34 arranged in front and rear on the main piece 35a. Have The grounding conductive block 31 is provided with a grounding piece (not shown) that is exposed to the outside of the housing 1 through a notch 10b provided in the body 10, and the grounding piece is in contact with, for example, a metal instrument body. As a result, the ground conductive block 31 is grounded. Further, a load connection portion 33 is provided on the rear side of the main piece 35 a of the voltage conductive block 32. The load connecting portion 33 includes a connecting piece 33a (see FIG. 5B) protruding upward from the rear end of the main piece 35a, a terminal piece 33b protruding backward from the upper end of the connecting piece 33a, and a terminal A downwardly U-shaped introduction piece 33c projecting upward from the rear end of the piece 33b, and a locking piece 33d which is cut and raised from the introduction piece 33c and is connected to the introduction piece 33c and inclined downward to the rear. With. The locking piece 33 d faces the wire insertion hole 15 provided on the rear surface of the load terminal block 4. The electric wire inserted into the electric wire insertion hole 15 is brought into contact with the voltage conductive block 32 so as to be sandwiched between the tip of the locking piece 33d and the terminal piece 33b, and the leading end of the locking piece 33d bites into the retaining hole. (Locked).

  An electric wire 37 having a different polarity according to the voltage conductive block 32 is connected to each terminal portion 34 of each voltage conductive block 32. That is, the two partition walls 12 sandwiched between the voltage conductive blocks 32 form a partition portion. In addition, since the structure of each terminal part 34 is respectively common with a prior art example, the same code | symbol is attached | subjected to the corresponding part about the terminal part 34, and detailed illustration and description are abbreviate | omitted.

  Further, as shown in FIGS. 5 (a) and 5 (b), each of the power terminal blocks 2 and 3 is provided with two release buttons 25 for pressing the lock pieces 35d and releasing the locks. ing. Each release button 25 is provided on a portion of the cover 20 that forms a rearward inclined surface of the upper surface of the power supply terminal block 2, 3, and is separated from other portions of the cover 20 except for the front end by a U-shaped slit. Thus, the rear end portion can be swung up and down with respect to other parts of the cover 20.

  More specifically, the release button 25 has a front end connected to another part of the cover 20 and is formed thinner than the other part of the cover 20 and has a spring property, and is connected to the rear end of the support part 25a. And a button main body 25b that is swingably supported with respect to other parts of the cover 20 via the support portion 25a. As shown in FIGS. 1 (a) and 1 (b), the button main body 25b is located on the upper side of the partition wall 12 and exposed downward from the left and right end portions of the connecting portion 25c. It has a projecting convex portion 25d, and has a U-shaped cross section that opens downward. In the release button 25 on the left side, each convex portion 25d is positioned above the locking pieces 35d of the voltage conductive blocks 32 different from each other on the opposite side across the two partition walls 12. In the right release button 25, the right convex portion 25d is positioned above the locking piece 35d of the ground conductive block 31, and the left convex portion 25d is sandwiched between the one partition wall 12 and the right protruding portion 25d. Located on the opposite side of.

  When unlocking the electric wire 37 inserted into the electric wire insertion hole 24, as shown in FIG. 6A, the connecting portion 25c of the button body 25b is moved downward using a jig 43 such as a flat-blade screwdriver. When pushed in, the locking piece 35d is pressed downward by the projection 25d and elastically deformed as shown in FIG. 6 (b). Then, the locking piece 35d is separated from the guide piece 35f, the locking is released, and the electric wire 37 can be pulled out from the electric wire insertion hole 24. That is, the convex portion 25d is a release portion in the claims, and the connecting portion 25 is an operation portion in the claims. Here, since the release button 25 on the left side straddles the locking pieces 35d of the two voltage conductive blocks 32, if the release button 25 on the left side is pressed, the locks in the two electric wire insertion holes 24 on the voltage side are locked. Can be canceled at the same time. Further, if the release button 25 on the right side is pressed, the lock in the wire insertion hole 24 on the ground side can be released. After the unlocked electric wire 37 is pulled out, if the pressing force to the release button 25 is released, the release button 25 is restored by the spring force of the support portion 25a, and the lock piece 35d is caused by its own spring force. Return.

  By the way, the distance between the convex portions 25d of the right release button 25 is slightly larger than the width dimension of the partition wall 12 sandwiched between the convex portions 25d, and the distance between the convex portions 25d of the left release button 25. (That is, the width dimension of the gap between the convex portions 25d) is slightly smaller than the distance between the surfaces facing each other of the two partition walls 12 sandwiched between the convex portions 25d (that is, the width dimension of the partition portions). It has been enlarged. Accordingly, the surfaces of the convex portions 25d facing each other are guided by the partition wall 12, and the rattling of the button main body 25b tilting to the left and right is suppressed, so that the release button 25 can be easily operated. ing.

  Further, the downward movable range of the button main body 25 b is restricted to a position where the lower surface of the connecting portion 25 c comes into contact with the upper end surface of the partition wall 12. Here, the downward movable range of the button main body 25b is set to such an extent that no settling occurs in the locking piece 35d.

  According to the above configuration, since the two partition walls 12 facing each other with a gap are provided between the terminal portions 34 that are simultaneously unlocked by one release button 25, the partition between the terminal portions 34 is provided. Unlike the case where only one wall 12 is used, the release button 25 is not rattled by reducing the distance between the convex portion 25d and the partition wall 12 without causing deterioration in dimensional accuracy due to sink marks or warping during molding. Can be suppressed.

  By the way, as described in the problem to be solved by the invention, when there is a possibility that the release button 25 tilts to the left and right, if the movable range of the release button 25 is small, a single push on the release button 25 is performed. Since the lock at the two terminal portions 34 cannot be reliably released by the operation, the movable range of the release button 25 needs to be relatively large, and accordingly, the lock piece 35d is more than necessary. There is also a possibility of causing deformation by deforming to. On the other hand, in the present embodiment, the rattling of the release button 25 is suppressed, so that the locking at the two terminal portions 34 is reliably released by a single pressing operation on the release button 25. Thus, the movable range of the release button 25 to be secured becomes small, and the terminal device can be downsized. In addition, since the lock piece 35d is not deformed more than necessary, the lock piece 35d is less likely to become loose.

  Further, since the storage chambers 13a to 13c adjacent to each other are partitioned by two partition walls 12 facing each other with a gap therebetween, the occurrence of tracking is suppressed as compared with the case of partitioning by one partition wall 12. be able to.

  Furthermore, since the release button 25 is formed integrally with the cover 20 as a synthetic resin molded product, the number of parts is reduced as compared with the case where the release button 25 is formed of a separate part.

It is a figure which shows this invention, (a) is a side view, (b) is AA sectional drawing of (a). (A) (b) is a perspective view which shows the same seen from a mutually different direction, (b) shows the state seen from the upper left direction in (a). It is a disassembled perspective view which shows the same as the above. It is a disassembled perspective view except a cover in the same as the above. It is a figure which shows the same as the above, (a) is a front view, (b) is BB sectional drawing of (a). It is CC sectional drawing of FIG. 10 which shows the principal part same as the above, (a) shows the state before a pressing force is applied to a release button, (b) shows the state after a pressing force is applied to a release button. Show. It is a disassembled perspective view which shows a prior art example. It is a perspective view which shows the terminal part of each electrically conductive block in the same as the above, (a) is in the state where the electric wire is not connected, (b) shows the state where the electric wire is connected. It is CC sectional drawing of FIG. 10 which shows the principal part same as the above, (a) shows the state before a pressing force is applied to a release button, (b) shows the state after a pressing force is applied to a release button. Show. It is sectional drawing which shows the principal part same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Housing 10 Body 12 Partition wall 13 Storage recessed part 13a-13c Storage chamber 20 Cover 24 Wire insertion hole 25 Release button 25d Convex part 34 Terminal part 35d Locking piece 35f Guide piece 37 Electric wire

Claims (3)

A housing having a body provided with a storage recess and a cover coupled to the body to cover the storage recess, each provided with a plurality of wire insertion ports through which the wires are inserted, and in the storage recess A plurality of terminal portions to which the wires introduced into the housing through the wire insertion port are respectively connected at positions facing the wire insertion port in the housing;
Each terminal portion includes a terminal plate that is in contact with the electric wire introduced into the housing through the electric wire insertion port, and a locking spring that locks the electric wire introduced into the housing through the electric wire insertion port between the terminal plate and the terminal plate. Have
The body is provided with a partition part for partitioning between terminal parts to which electric wires of different polarities are connected, and the partition part is composed of a plurality of partition walls facing each other with a gap in the direction in which the terminal parts are arranged,
The operating part that is exposed outside the housing and receives the pressing force from the outside of the housing, and the pressing force received by the operating part are transmitted to the locking springs on the different terminal parts across the partition part to release the lock. A release button having two release portions to be
Each release part consists of a convex part,
Width of the gap between the release portion of the release button is rather slightly larger than the width of the partition portion sandwiched between the release portion,
A terminal device characterized in that surfaces of each release portion facing each other are respectively guided by partition walls .   The terminal device according to claim 1, further comprising a partition portion including two partition walls.   3. The terminal device according to claim 1, further comprising a release button integrated with the cover as a synthetic resin molded product.

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