JP2013161672A - Terminal block separator and collective terminal block device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a terminal block separator, which is disposed at a collective terminal block device having connection terminal blocks separable into two arrays and separates the connection terminal blocks into the two arrays, to install the collective terminal block device more easily than before.SOLUTION: A terminal block separator 4a comprises a fixed piece 40 which is fitted to an installation rail 2 and connects to a first piece part array 3a of a connection terminal block 3, a separation piece 41 which connects to the fixed piece 40 separably, and connects to a second piece part array 3b of the connection terminal block 3, and a rotary piece 42 which is held rotatably to the fixed piece 40 around a lengthwise axis of rotation of the installation rail 2. When the rotary piece 42 is rotated while the fixed piece 40 and the separation piece 41 connect to each other, the separation piece 41 is pressed by the rotary piece 42 to move in a direction of separation from the fixed piece 40, and the second piece part array 3b separates from the first piece part array 3a as the separation piece 41 moves.

Description

  The present invention relates to a terminal block separator for separating a connecting terminal block formed by connecting two-piece terminal blocks into two.

  Various plate-like terminal blocks that have a plurality of connecting portions for connecting lead wires and electrically connect the lead wires connected to the connecting portions have been proposed. A plurality of such terminal blocks are connected in the thickness direction to form a connecting terminal block, and the connecting terminal block is further held on the installation rail to constitute a collective terminal block device.

  In such a terminal block, a two-piece terminal block that is separable into two pieces each having a connecting portion is known. Specifically, as shown in FIGS. 4 and 7, the two-piece terminal block 6 is connected to the connection portions 22 on both sides by being separated into a first piece portion 6 a and a second piece portion 6 b. The lead wires can be disconnected from each other without being removed from the connecting portion 22. According to the terminal block 6, as shown in FIG. 8, the connection terminal block 3 includes a first piece row 3 a formed by connecting the first piece portions 6 a of each terminal block 6, and the first pieces 6 of each terminal block 6. By separating the connection terminal block 3 into the first piece row 3a and the second piece row 3b as necessary, it becomes possible to separate into the second piece row 3b formed by connecting the two pieces 6b. Maintenance can be performed efficiently.

  Here, in the collective terminal block device that can separate the connection terminal block into the first piece row and the second piece row, a terminal block separator for separating the connection terminal block is attached to the end of the connection terminal block. (For example, Patent Document 1). This terminal block separator is composed of two pieces, a fixed piece and a separate piece that is detachably coupled to the fixed piece, the fixed piece is connected to the end of the first piece row, and the separated piece is the second piece. It attaches so that it may connect with the edge part of a row | line | column, and when a separation piece is separated from a fixed piece, it is comprised so that the 2nd piece part row | line | column may follow the direction separated from a 1st piece part row | line | column.

Design Registration No. 1086838 gazette Reference perspective view showing the assembled state

  In the conventional terminal block separator, as shown in Patent Document 1, the separation piece is provided with a knob extending in the longitudinal direction of the installation rail, and the separation piece is lifted by picking the knob and lifting the separation piece. It is comprised so that it may isolate | separate from a fixed piece. However, since the collective terminal block device is long in the longitudinal direction of the installation rail, if the knob of the terminal block separator is projected in the longitudinal direction of the installation rail, the collective terminal block device becomes longer, and the knob Since it is also necessary to secure a space for picking up the knob at the tip, a relatively wide space is required to install the collective terminal block device.

  The present invention has been made in view of the current situation, and an object of the present invention is to provide a terminal block separator in which the installation of the collective terminal block device is easier than before and a collective terminal block device including the terminal block separator. .

  The present invention provides an end of a connecting terminal block formed by connecting a plurality of terminal blocks, which are connected to a first rail part and a second strip part, having a connecting part for connecting lead wires in a separable manner along an installation rail. To separate the connecting terminal block into a first piece row connected to the first piece of each terminal block and a second piece row connected to the second piece of each terminal block. A terminal block separator, which is attached to an installation rail and is connected to an end of the first piece part row of the connecting terminal block, and is attached to the connecting piece so as to be separable from the connecting terminal block. A separation piece coupled to the end of the second piece part row, and a turning piece that is rotatably held around a turning axis in the longitudinal direction of the installation rail with respect to the fixed piece. Is provided with a working end extending from the center of rotation in a direction perpendicular to the longitudinal direction of the installation rail. When the rotating piece is rotated from the normal position, the operating end presses the separating piece, so that the separating piece moves in the direction of separating from the fixed piece. The terminal block separator is characterized in that the second piece row connected to the piece is moved in a direction to separate from the first piece row.

  In such a configuration, the connecting terminal block can be separated into the first piece portion row and the second piece portion row by rotating the turning piece around the turning axis in the longitudinal direction of the installation rail. Therefore, compared with the above-described conventional configuration, the length in the longitudinal direction of the collective terminal block device can be shortened because it is not necessary to extend the knob in the longitudinal direction of the installation rail. In addition, the collective terminal block device provided with the terminal block separator of the present invention requires a space for rotating the rotating piece in the short direction of the installation rail. Regardless, since the space for connecting the lead wire to each terminal block is secured in the short direction of the installation rail, it is not necessary to separately secure the space for rotating the rotating piece.

  In the present invention, the separation piece is mounted on one side upper part of the fixed piece, and the rotation piece is rotatably held on the other side upper part of the fixed piece, and its action end is below the separation piece. It is proposed that the separation piece is configured to be separated from the fixed piece by the action end pushing up the separation piece when the turning piece is turned from the normal position.

  In such a configuration, the separation piece on the opposite side can be pushed up from below simply by turning the turning piece on the upper side of the terminal block separator, so that it can be separated from the fixed piece by a relatively simple operation. The pieces can be reliably separated.

  In the present invention, the terminal block includes a conductive fitting that forms a connecting portion for connecting a lead wire, and the conductive fitting includes a first fitting attached to the first piece, and a first fitting. It is comprised by the 2nd metal fitting with which two piece parts are mounted | worn, and in the combined state of a 1st piece part and a 2nd piece part, a 1st metal fitting and a 2nd metal fitting are closely fit in an up-down direction, and mutually press-contact Thus, when the first metal part and the second metal part are electrically connected and the first piece part and the second piece part are separated, the second piece part moves relative to the upper part of the first piece part. Along with this, the second fitting is detached from the first fitting, and the position where the working end of the rotating piece pushes up the separation piece is a position where the first fitting and the second fitting of each terminal block are closely fitted. It is proposed that they are provided at positions that are arranged in a line along the longitudinal direction of the installation rail.

  In such a configuration, when separating the connection terminal block, the second metal fitting of each terminal block will be dropped from the first metal fitting, but the second metal fitting is in a close fitting state with the first metal fitting, In order to drop off the first bracket, it is necessary to move the second bracket upward with a relatively strong force. On the other hand, in such a terminal block separator, the position where the working end presses the separation piece is arranged in a line in the longitudinal direction of the installation rail with the position where the first metal fitting and the second metal fitting are closely fitted. Therefore, the force which pushes up the separation piece by the turning piece can be efficiently transmitted to the portion where the second fitting is fitted to the first fitting. Therefore, according to this configuration, the connection terminal block can be smoothly separated with a relatively small force.

  In the present invention, the rotating piece is provided with a restricting claw that engages with the separating piece and restricts the upward movement of the separating piece at the normal position. It is proposed that when it is rotated, the restricting claw is retracted from the separation piece and the separation piece can be moved upward.

  In such a configuration, it is possible to prevent the separation pieces from being separated due to vibration or impact, and to prevent the connection terminal block from being unintentionally separated. Further, since the restriction claw is retracted from the separation piece in accordance with the movement of turning the rotation piece from the normal position, there is an advantage that the restriction by the restriction claw can be easily released when the separation piece is separated.

  Further, in the present invention, the rotating piece is formed with a lever rod insertion hole in a direction orthogonal to the longitudinal direction of the installation rail, the lever rod is inserted into the lever rod insertion hole, and the lever rod is It is proposed that the rotating piece can be rotated by tilting. Here, a rod-shaped tool such as a screwdriver can be suitably used as the lever rod.

  In such a configuration, by rotating the rotating piece via the lever rod, the rotating piece can be easily moved even when the terminal block separator is in a narrow place or a remote place that is difficult to reach by the operator. Further, the connection terminal block can be separated into two rows with a small force by utilizing the lever action. In addition, such a configuration has an advantage that the rotating piece is difficult to be bulky because it is only necessary to provide the lever rod insertion hole without providing the knob on the rotating piece.

  In the present invention, the rotating piece is provided with an operation end extending in a direction orthogonal to the longitudinal direction of the installation rail, and the rotating piece is operated by pressing the operation end. It is proposed that it is comprised so that can be rotated.

  In such a configuration, the rotating piece can be rotated without using a tool such as a lever. Since the operation end extends in a direction perpendicular to the longitudinal direction of the installation rail, the operation end portion is less bulky than a conventional knob protruding in the longitudinal direction of the installation rail, and has an advantage that it is easy to operate. is there.

  Further, in the present invention, the rotating piece is slidably disposed so as to abut on the fixed piece so that the rotating piece cannot be rotated from the normal position. It is proposed to provide a lock piece that can be slid at a release position where the moving piece can be rotated.

  In such a configuration, in the state where the lock piece is in the fixed position, the rotating piece does not rotate even if the rotating piece is touched unintentionally. Separation is eliminated, and the safety of the collective terminal block device can be improved.

  Further, in the present invention, the rotating piece is formed with a lever rod insertion hole in a direction orthogonal to the longitudinal direction of the installation rail, the lever rod is inserted into the lever rod insertion hole, and the lever rod is It is proposed that the pivot piece can be pivoted by tilting, and the lock piece is one that closes the lever rod insertion hole at the fixed position and opens at the release position. The

  In a state where the rotation piece cannot be rotated by the lock piece, there is a risk that the rotation piece may be damaged if a strong torque is applied to the rotation piece by the lever action of the lever rod. In a state where the piece is in the fixed position, the lever bar cannot be inserted into the lever bar insertion hole, so that it is possible to reliably prevent the rotating piece from being damaged by an erroneous operation.

  Further, in the present invention, the upper end portion of the lock piece is exposed on the rotating piece, and the lock piece is slid between the fixed position and the release position by operating the upper end portion. It is proposed that In such a configuration, not only can the lock piece be easily operated, but also whether or not the rotating piece is fixed by the lock piece can be grasped at a glance by the position of the upper end portion of the lock piece.

  Another aspect of the present invention is a terminal block comprising an installation rail, a first piece attached to the installation rail, and a second piece detachably attached to the first piece. A collective terminal block device comprising a plurality of connection terminal blocks connected along an installation rail, and the terminal block separator attached to an end of the connection terminal block.

  According to this configuration, it is possible to realize a collective terminal block device that is more compact and easy to install than the conventional configuration.

  As described above, in the terminal block separator of the present invention, there is no need to provide a knob protruding in the longitudinal direction of the installation rail at the end of the collective terminal block device, and a space for operating the knob is secured. There is no need to do. For this reason, according to the terminal block separator of the present invention, the length in the longitudinal direction of the collective terminal block device can be shortened compared to the conventional configuration, and the collective terminal block device including the terminal block separator of the present invention is The space required for installation is small compared to the conventional configuration, and the installation is easy.

1 is a perspective view of a collective terminal block device 1. FIG. 2 is an exploded perspective view of the collective terminal block device 1. FIG. 3 is a front view of a terminal block 6. FIG. 3 is a perspective view of a terminal block 6. FIG. It is a perspective view which shows the aspect which connects the terminal block 6 mutually. It is a front view of the terminal block 6 which isolate | separates and shows the 1st piece part 6a and the 2nd piece part 6b. It is a perspective view of the terminal block 6 which shows the 1st piece part 6a and the 2nd piece part 6b separately. It is a perspective view of the connection terminal block 3, (a) is the connection state of the 1st piece part row | line | column 3a and the 2nd piece part row | line | column 3b, (b) is the 1st piece part row | line | column 3a and the 2nd piece part row | line | column. 3b shows a separated state. It is a perspective view of the terminal block separator 4a. It is a disassembled perspective view of the terminal block separator 4a. It is a fragmentary sectional view of the terminal block separator 4a which shows the state in which the rotation piece 42 exists in the normal position P. It is a fragmentary sectional view of the terminal block separator 4a which shows the state which rotated the rotation piece 42 to the extrusion position Q. It is a perspective view which shows the connection aspect of the terminal block separator 4a and the terminal block 6. FIG. It is a perspective view which shows the connection aspect of the terminal block separator 4b and the terminal block 6. FIG. It is explanatory drawing which shows the operation mode at the time of separating the connection terminal block. It is explanatory drawing which shows the operation aspect at the time of separating the connection terminal block 3 continued from FIG. It is a disassembled perspective view of the terminal block separator 4c of a modification. It is a perspective view of the terminal block separator 4c of the modification which shows the state which has the lock piece 43 in the fixed position R. It is a fragmentary sectional view of terminal block separator 4c of a modification which shows the state where lock piece 43 exists in fixed position R. It is a perspective view of the terminal block separator 4c of the modification which shows the state which has the lock piece 43 in the releasing position S. It is a fragmentary sectional view of terminal block separator 4c of a modification which shows the state where lock piece 43 exists in release position S. It is a perspective view of the terminal block separator 4c of the modification which shows the state which rotated the rotation piece 42a to the extrusion position Q. It is a fragmentary sectional view of the terminal block separator 4c of the modification which shows the state which rotated the rotation piece 42a to the extrusion position Q.

  Embodiments of the present invention are described according to the following examples.

As shown in FIGS. 1 and 2, the collective terminal block device 1 is formed by attaching a connecting terminal block 3, terminal block separators 4 a and 4 b, and fixing brackets 5 and 5 to a metal installation rail 2. It is.
As shown in FIG. 2, the installation rail 2 is formed by forming linkage plate seats 13 and 13 projecting in the width direction at the upper ends of the side walls 12 and 12 on both sides along the longitudinal direction. The connecting terminal block 3 and the like are attached to the installation rail 2 by engaging with the connecting plate seat 13. The connecting terminal block 3 is formed by stacking plate-shaped two-piece terminal blocks 6 along the installation rails 2 and mutually connecting them. The terminal block separators 4 a and 4 b are arranged one by one at both ends of the connection terminal block 3 and are connected to each end of the connection terminal block 3. The fixtures 5 and 5 are disposed so as to contact the outside of the terminal block separators 4a and 4b. The fixing metal 5 is formed by assembling two metal pieces with screws, and is fixed onto the installation rail 2 by tightening the screws while being engaged with the linkage plate seat 13 of the installation rail 2. Then, by fixing the fixing bracket 5 on the rail, the connection terminal block 3 and the terminal block separators 4 a and 4 b are fixed so as not to move in the longitudinal direction of the installation rail 2. Since this fixing metal fitting 5 can use the conventional structure suitably, detailed description is abbreviate | omitted. A name plate 9 is attached to the upper part of the connection terminal block 3 along the longitudinal direction of the installation rail 2. Further, in the collective terminal block device 1, the connecting terminal block 3 and the terminal block separators 4a and 4b are penetrated in the longitudinal direction of the installation rail 2, and the connecting terminal block 3 and the terminal block separators 4a and 4b are integrally fastened. A connecting screw 7 is provided.

  As shown in FIGS. 3 and 4, the terminal block 6 is for connecting two lead wires L and L to each other, and is a resin formed in a plate shape by an insulating resin material such as a modified PPO resin. The substrate 20 is a main part. A plate-shaped conductive metal fitting 21 is mounted on the resin substrate 20 in a transverse manner. Both side portions of the conductive metal fitting 21 constitute flat connection portions 22 and 22 for connecting the lead wires L. The conductive metal fitting 21 electrically connects the lead wires L connected to the left and right connection portions 22. . A movable washer member 23 is held at each connecting portion 22 of the conductive metal member 21 so as to be movable up and down, and an attachment screw 24 is inserted into the movable washer member 23. A compression coil spring 25 that biases each movable washer member 23 upward is attached to the resin substrate 20. When connecting the lead wire L to the connection portion 22, with the mounting screw 24 removed, the crimp terminal U at the end of the lead wire L is inserted between the movable washer member 23 and the connection portion 22, The attachment screw 24 is screwed to the connection portion 22, and the crimp terminal U is clamped between the movable washer member 23 and the connection portion 22 so as not to fall off. Thereby, the lead wire L connected to each connection part 22 is connected via the conductive metal fitting 21. In the following description, the side shown in FIG. 3 will be described as the front side of the terminal block 6.

  As shown in FIGS. 3 and 4, the resin substrate 20 has a predetermined wall 28 protruding from the back plate 27, so that the conductive fitting 21 and the movable washer member 23 are mounted on the seating groove surface 29. Is formed open on the front side. Further, on the bottom of the resin substrate 20, engagement claws 30, 30 that engage with the linkage plate seats 13, 13 of the installation rail 2 are formed. Further, as shown in FIG. 5, connection protrusions 31 a and 31 b are formed on the front side of the resin substrate 20, and connection holes 32 a and 32 b are formed on the back side, and the connection protrusions of the adjacent terminal blocks 6 are formed. The terminal block 6 can be connected in the thickness direction by fitting the connection holes 32a and 32b with 31a and 31b. Further, a connecting screw through hole 33 through which the connecting screw 7 is inserted is formed at the upper center of the resin substrate 20.

  Here, the two-piece terminal block 6 is configured to be separable into two parts, a first piece 6a and a second piece 6b. Specifically, the resin substrate 20 is constituted by two pieces of a first substrate 20a and a second substrate 20b, and the conductive fitting 21 is also a first fitting 21a attached to the first substrate 20a, and a second substrate. It consists of two pieces of the second metal fitting 21b attached to 20b. As shown in FIGS. 6 and 7, the first piece portion 6 a has a substantially L shape when viewed from the front, and the left connection portion 22 and the engaging claw 30 that engages with the installation rail 2 include the first piece. It is provided on the part 6a side. The second piece portion 6b has a substantially rectangular shape when viewed from the front, and the right connection portion 22 and the connecting screw through hole 33 are provided on the second piece portion 6b side. The 1st piece part 6a and the 2nd piece part 6b will be in a connection state by fitting the 2nd piece part 6b from upper direction with respect to the 1st piece part 6a. Here, a connection hole 35 that opens upward is formed at the inner end of the first metal fitting 21a, and a connection end 36 that extends downward is formed at the inner edge of the second metal fitting 21b. Has been. When the second piece 6b is fitted into the first piece 6a, the connection end 36 of the second fitting 21b is press-fitted into the connection hole 35 of the first fitting 21a, so The two metal fittings 21b are brought into close contact with each other and are brought into pressure contact with each other, whereby the connecting portions 22 formed on the two metal fittings 21a and 21b are electrically connected.

  As shown in FIG. 8A, the terminal block 6 is connected to each other along the longitudinal direction of the installation rail 2 to constitute the connection terminal block 3. Here, as shown in FIG. 5, in the terminal blocks 6 and 6 to be interconnected, the first piece 6a is connected to the adjacent first piece 6a via the connection protrusion 31a and the connection hole 32a, The two piece portions 6b are connected to the adjacent second piece portion 6b via the connection protrusion 31b and the connection hole 32b. For this reason, as shown in FIG. 8 (b), the connecting terminal block 3 formed by connecting the terminal blocks 6 includes a first piece portion row 3a in which the first piece portions 6a of the terminal blocks 6 are connected, It can isolate | separate into the 2nd piece part row | line | column 3b which the two piece part 6b connected. If the connecting terminal block 3 is separated into two rows in this way, the lead wire L connected to the first piece row 3a side and the lead wire L connected to the second piece row 3b side are not mutually connected. Since it can be in a state, it becomes possible to perform maintenance etc. of the collective terminal block device 1 easily.

  Below, the terminal block separator 4a connected with the front side of the terminal block 6 among the terminal block separators 4a and 4b arrange | positioned at the both ends of the connection terminal block 3 is demonstrated.

  As shown in FIGS. 9 and 10, the terminal block separator 4 a is attached to the end of the first piece row 3 a of the connection terminal block 3 and is separably attached to the fixed piece 40. The separation piece 41 connected to the end of the second piece row 3b of the connection terminal block 3 and the turning piece 42 rotatably held by the fixed piece 40 are provided.

  As shown in FIGS. 9 to 11, the fixing piece 40 is a resin piece having an L-shape in front view that constitutes a lower portion and an upper left side portion of the terminal block separator 4 a in front view. A wide lower portion of the fixed piece 40 constitutes an engaging portion 44 attached to the installation rail 2. A pair of left and right engaging claws 45 that engage with the installation rail 2 are provided at the bottom of the engaging portion 44. The upper left portion of the fixed piece 40 constitutes a holding portion 46 that holds the rotating piece 42. The holding portion 46 includes a pair of holding plates 47, 47 that are opposed to the longitudinal direction of the installation rail 2, and a support shaft 48 that is held between the holding plates 47 along the longitudinal direction of the installation rail 2. Is done.

  As shown in FIGS. 9 to 12, the separation piece 41 is a resin piece constituting the upper right side portion of the terminal block separator 4 a in front view. The separation piece 41 has a shape that can be fitted to the fixed piece 40 and is attached to the fixed piece 40 from above. The separation piece 41 is formed with a connection screw through hole 50 through which the connection screw 7 is inserted. The connecting screw through hole 50 is cut out in a hexagonal shape so that the end of the connecting screw 7 can be held unrotatable. The separation piece 41 is formed with a screw insertion hole 51 penetrating vertically. The lower opening of the screw insertion hole 51 faces a screw hole (not shown) formed in the fixing piece, and a screw is inserted from the upper opening of the screw insertion hole 51 and screwed into the screw hole, thereby fixing the fixing piece. 40 and the separation piece 41 can be screwed together inseparably. In addition, an engaging groove 52 for engaging with the rotating piece 42 is formed in the upper left portion of the separating piece 41. Further, the lower left portion of the separation piece 41 constitutes a pressure receiving portion 53 that is pressed by the rotation piece 42.

  9-12, the rotation piece 42 is extended in the direction of the separation piece 41 from the rotation center part 57 in which the shaft hole 56 which the spindle 48 penetrates was formed, and the rotation center part 57. As shown in FIG. A resin piece including an action end 58, a lever rod insertion portion 59 provided at the upper left of the rotation center portion 57, and an operation end 61 extending leftward from the upper left portion of the lever rod insertion portion 59. It is. The rotation piece 42 is held so as to be rotatable about the support shaft 48 by holding the rotation center portion 57 on the support shaft 48, and the operation end portion 61 and the action end portion 58 become horizontal. From the normal position P, the distal end of the operation end portion 61 is inclined downward and can be rotated to an extrusion position Q where the distal end of the action end portion 58 is inclined upward. The lever rod insertion portion 59 is formed with a vertical rod rod insertion hole 60 through which the lever rod T is inserted. By inserting the lever rod T such as a screwdriver into the lever rod insertion hole 60 and tilting it, The moving piece 42 can be rotated from the normal position P to the pushing position Q. As the lever rod T, a rod-like tool such as a screwdriver can be suitably used. Further, the rotating piece 42 can be rotated from the normal position P to the pushing position Q by pushing down the operation end 61 without using the lever rod T. In addition, a restriction claw 62 that engages with the engagement groove 52 of the separation piece 41 is provided at the upper right portion of the lever rod insertion portion 59.

  As shown in FIG. 13, connection holes 54a and 54b are formed on the back side of the terminal block separator 4a. The terminal block separator 4 a is connected to the end of the connection terminal block 3 by fitting the connection holes 54 a and 54 b with connection protrusions 31 a and 31 b formed on the front surface of the terminal block 6. Here, in the connected state with the connection terminal block 3, the fixed piece 40 is connected to the end portion of the first piece row 3 a by being connected to the first piece portion 6 a of the terminal block 6, and separated. The piece 41 is connected to the end of the second piece row 3b by being connected to the second piece 6b of the terminal block 6.

  In the terminal block separator 4a, when the separation piece 41 is mounted on the fixed piece 40, the rotating piece 42 is at the normal position P as shown in FIG. 58 extends rightward from the rotation center portion 57 and is located immediately below the pressure receiving portion 53 of the separation piece 41. In such a mounting state, the upward movement of the separation piece 41 is restricted by the restriction claw 62 of the rotation piece 42 engaging with the engagement groove portion 52 of the separation piece 41.

  When the rotating piece 42 is rotated to the pushing position Q by the pressing of the operation end 61 or the tilting of the lever rod T in the mounted state of the separating piece 41, as shown in FIG. 62 is retracted to the left side of the engaging groove 52 so that the separation piece 41 can be lifted, and at the same time, the working end 58 located immediately below the pressure receiving portion 53 of the separation piece 41 presses the pressure receiving portion 53 in the directly upward direction. Then, the separation piece 41 is separated from the fixed piece 40 by pushing the separation piece 41 upward. As described above, the terminal block separator 4a can separate the separation piece 41 from the fixed piece 40 by pushing down the operation end 61 or inserting the lever rod T and tilting it.

  The separation piece 41 separated from the fixed piece 40 can be remounted from above the fixed piece 40. When the separation piece 41 is mounted, the rotation piece 42 is rotated to the normal position P by the action end portion 58 being pushed down by the separation piece 41. When the separation piece 41 is completely attached to the fixed piece 40, the rotating piece 42 returns to the normal position P, and the restriction claw 62 engages with the engagement groove portion 52. It is locked by 62 so that it cannot be raised.

  FIG. 14 shows the other terminal block separator 4 b disposed on the opposite side of the connection terminal block 3. The terminal block separator 4b has a substantially symmetrical shape with the terminal block separator 4a and the connection terminal block 3 interposed therebetween. The difference from the above-described terminal block separator 4a is that the terminal block separator 4b on the opposite side is connected to the back side of the terminal block 6, and therefore, on the side connected to the terminal block 6 as shown in FIG. It is a point provided with the connection protrusions 55a and 55b fitted to the connection holes 32a and 32b formed in the back surface of the base 6. Since other configurations are the same as those of the terminal block separator 4a described above, the same reference numerals are given in the drawing and description thereof is omitted.

  In the collective terminal block device 1 of the present embodiment, in order to separate the connection terminal block 3 into the first piece portion row 3a and the second piece portion row 3b, first, as shown in FIG. The lever bar T is inserted into one of the terminal block separators 4a, and the inserted lever bar T is tilted in the short direction of the installation rail 2 as shown in FIG. By this tilting operation, the separation piece 41 of the terminal block separator 4a is pushed up, and among the terminal blocks 6 constituting the connection terminal block 3, the second piece 6b is separated from the terminal block 6a that is close to the terminal block separator 4a. By following 41, it will isolate | separate into the 1st piece part 6a and the 2nd piece part 6b. At this time, since the terminal block 6 is not separated up to the opposite side of the terminal block separator 4a of the connecting terminal block 3, as shown in FIG. 16 (a), the terminal block separator 4b on the opposite side also has an insulator rod. The separation piece 41 is separated from the fixed piece 40 by inserting and tilting T. Thus, when the terminal block separators 4a and 4b on both sides are separated into the fixed piece 40 and the separation piece 41, all the terminal blocks 6 constituting the connection terminal block 3 are replaced with the first piece 6a and the second piece. The parts 6b can be separated, and as shown in FIG. 16 (b), the second piece part row 3b can be separated from the collective terminal block device 1 for maintenance work or the like. The separated connection terminal block 3 can be re-coupled by placing and pressing down the second piece row 3b with the separation pieces 41 on both ends on the first piece row 3a. In addition, with the reconnection of the connection terminal block 3, the terminal block separators 4 a and 4 b are also reattached to the fixed piece 40. In addition, since the 2nd piece part row | line | column 3b and the isolation | separation piece 41 are integrally fastened in the longitudinal direction of the installation rail 2 with the connection screw 7, when the connection terminal block 3 is isolate | separated, the 2nd piece part row | line | column 3b and The separation piece 41 is never disassembled.

  As described above, according to the terminal block separators 4a and 4b of the present embodiment, the rotating piece 42 exposed on one side of the installation rail 2 is operated to rotate about the longitudinal direction of the installation rail 2, The connection terminal block 3 can be separated into two rows. For this reason, the knobs for operating the terminal block separators 4a and 4b do not protrude in the longitudinal direction at both ends of the collective terminal block device 1 of the present embodiment, and in the longitudinal direction of the collective terminal block device 1 It is not necessary to secure a space for operating the terminal block separators 4a and 4b. Therefore, the collective terminal block device 1 of the present embodiment can be reduced in size in the longitudinal direction as compared with the conventional configuration, and can be installed in a relatively narrow place. In addition, the collective terminal block device 1 of the present embodiment requires a space for tilting the lever bar T and pressing the operation end 61 of the rotating piece 42 in the short direction. Regardless of the presence / absence of the terminal block separators 4a and 4b, the space for connecting the lead wires L is secured in the short direction of the collective terminal block device 1, so that the terminal block separators 4a and 4b are operated. Therefore, it is not necessary to secure a dedicated space.

  In particular, in the terminal block separators 4a and 4b according to the present embodiment, the separation piece 41 is detachably mounted on the upper right side, and the rotation piece 42 held on the upper left side is rotated to operate the separation piece. Since it is comprised so that 41 may be pushed up and separated, the isolation | separation piece 41 can be easily isolate | separated only by operating the terminal block separator 4a, 4b from one side.

  Further, in the collective terminal block device 1 of the present embodiment, the first metal fitting 21a and the second metal fitting at the position where the working end 58 pushes up the separation piece 41 in each terminal block separator 4a, 4b and at each terminal block 6. The positions at which 21b are closely fitted are arranged in a line along the installation rail 2 when viewed from above. That is, as shown in FIG. 3, the terminal block separator 4 a is adjusted so that the first metal fitting 21 a and the second metal fitting 21 b of the terminal block 6 are closely fitted at the center in the width direction of the terminal block 6. As shown in FIG. 13, the separation piece 41 is pushed up by the rotation piece 42 at the center in the width direction. In order to separate the terminal block 6 into the first piece portion 6a and the second piece portion 6b, it is necessary to push the second fitting 21b strongly upward and drop it from the first fitting 21a. Since the position at which the rotating piece 42 pushes up the separating piece 41 and the position at which the first fitting 21a and the second fitting 21b are closely fitted are arranged in the longitudinal direction of the installation rail 2, a force for pushing up the separating piece 41 is provided. There is an advantage that the second metal fitting 21b can be dropped from the first metal fitting 21a by efficiently transmitting to the second metal fitting 21b.

  Further, in the present embodiment, the separation piece 41 is in the normal position P of the turning piece 42 and the restriction claw 62 of the turning piece 42 is engaged with the engagement groove portion 52 of the separation piece 41 in the vertical direction. Since it is prevented from moving upward and being separated from the fixed piece 40, the separation piece 41 is moved in the separation direction by vibration or impact, and the connection terminal block 3 is unintentionally separated into two rows. Can be prevented. In particular, the restricting claw 62 is configured to retract from the separation piece 41 when the rotation piece 42 is rotated from the normal position P, and to engage with the separation piece 41 when the rotation piece 42 returns to the normal position P. There is an advantage that the separation piece 41 can be easily regulated and deregulated as necessary.

  Further, in this embodiment, a lever rod insertion hole 60 is formed in the rotation piece 42, and the rotation piece 42 is rotated by inserting and tilting a lever rod T such as a screwdriver into the lever rod insertion hole 60. It is configured to be able to move. For this reason, even when the collective terminal block device 1 of the present embodiment is installed in a place where it is difficult to reach, the rotating piece 42 can be easily rotated through the thin and long lever rod. Further, even when the first piece portion row 3a and the second piece portion row 3b are firmly coupled, the connection terminal block 3 can be easily separated into two rows by utilizing the principle of the lever.

  In the present embodiment, the rotating piece 42 is provided with an operation end 61 extending leftward, and the turning piece 42 is also rotated by pressing the operation end 61. Therefore, the connecting terminal block 3 can be separated into two rows even when the lever rod T is not at hand.

  Next, a modified terminal block separator 4c in which a lock mechanism is provided on the rotating piece will be described with reference to FIGS. In the following description, portions common to those of the terminal block separator 4a of the above embodiment are denoted by the same reference numerals in the drawing and description thereof is omitted.

  As shown in FIGS. 17 and 18, a lock piece 43 is attached to a rotating piece 42a in the terminal block separator 4c of the modification. Specifically, the rotating piece 42a includes a thick operation end 61a. A slide groove 65 penetrating vertically is formed in the operation end portion 61a, and the lock piece 43 is held inside the slide groove 65 so as to be slidable in the left and right directions. The lock piece 43 includes a sliding portion 66 that is slidably held in the sliding groove 65, an upper plate portion 67 that is formed at the upper end of the sliding portion 66 and is exposed on the sliding groove 65, and a sliding member. The rotation preventing portion 68 is formed at the lower end of the moving portion 66 and exposed below the sliding groove 65.

  The lock piece 43 is movable to the right fixed position R and the left release position S by sliding left and right with respect to the rotating piece 42a. When the lock piece 43 is in the fixed position R, as shown in FIGS. 18 and 19, the rotation preventing portion 68 of the lock piece 43 abuts on the engaging portion 44 of the fixed piece 40, so that the rotation piece 42a cannot be rotated from the normal position P. Further, in this state, the upper plate portion 67 of the lock piece 43 covers and closes the entrance of the lever rod insertion hole 60, so that the lever rod T cannot be inserted into the lever rod insertion hole 60.

  The lock piece 43 can be moved from the fixed position R to the release position S as shown in FIGS. 20 and 21 by pressing the upper plate portion 67 with a finger and sliding it to the left. When the lock piece 43 is moved to the release position S, the rotation preventing portion 68 is retracted from the engaging portion 44 of the fixed piece 40, and the rotation piece 42a can be rotated from the normal position P. Further, at the release position S of the lock piece 43, the upper plate portion 67 is retracted to the left of the entrance of the lever rod insertion hole 60, so that the lever rod T can be inserted into the lever rod insertion hole 60. Therefore, at the release position S of the lock piece 43, the lever rod T is inserted into the lever rod insertion hole 60 and tilted, or the operation end 61 is pushed down, as shown in FIGS. The piece 42 a is rotated from the normal position P to the pushing position Q, and the separation piece 41 can be separated above the fixed piece 40.

  As described above, the terminal block separator 4c according to the modification can be fixed so that the rotating piece 42a does not rotate by operating the lock piece 43 provided on the rotating piece 42a. For this reason, in this modified example, in the state where the lock piece 43 is in the fixed position R, even when the operation end 61 is inadvertently contacted, the turn piece 42a is turned and the separation piece 41 is separated. And it is excellent in safety. If a strong force is applied to the rotating piece 42a by the lever rod T with the rotating piece 42a fixed, the terminal block separator 4c may be damaged. In this modification, the lock piece 43 is fixed. At the position R, not only the rotation piece 42a becomes unrotatable but also the lock piece 43 blocks the lever rod insertion hole 60 so that the lever rod T cannot be inserted into the rotation piece 42a. In the present modification, the upper end portion (upper plate portion 67) of the lock piece 43 is exposed on the rotating piece 42a, so that the rotating piece 42 can be operated depending on the position of the upper plate portion 67. There is an advantage that it can be grasped at a glance.

  The present invention is not limited to the embodiment described above, and various modifications can be made without departing from the scope of the present invention. For example, the terminal block separator of the above embodiment is configured so that the rotating piece can be rotated by two kinds of operations, that is, the tilting operation by the lever rod and the pressing operation of the operation end. The terminal block separator may be configured so that the rotating piece can be rotated by at least one kind of operation. In the above embodiment, the terminal block separator according to the present invention is attached to both ends of the collective terminal block device. However, the terminal block separator of the present invention is disposed at at least one end of the collective terminal block device. If it is enough.

DESCRIPTION OF SYMBOLS 1 Collective terminal block apparatus 2 Installation rail 3 Connection terminal block 3a 1st piece part row | line | column 3b 2nd piece part row | line | column 4 Terminal block separator 6 Terminal block 6a 1st piece part 6b 2nd piece part 7 Connection screw 20 Resin board 21 Conductive metal fitting 21a First metal fitting 21b Second metal fitting 22 Connection portion 40 Fixed piece 41 Separating piece 42, 42a Rotating piece 43 Lock piece 48 Support shaft 52 Engaging groove portion 53 Pressure receiving portion 57 Rotating center portion 58 Working end portion 60 Insulator rod Insertion hole 61, 61a Operation end 62 Restriction claw 65 Sliding groove 66 Sliding part L Lead wire P Normal position Q Push position R Fixed position S Release position T Insulator rod

Claims (10)

A terminal block formed by detachably connecting a first piece portion and a second piece portion having a connecting portion for connecting a lead wire is attached to an end portion of a connecting terminal block formed by connecting a plurality of pieces along an installation rail. Terminal block separation for separating the connection terminal block into a first piece row connected to the first piece of each terminal block and a second piece row connected to the second piece of each terminal block A vessel,
A fixed piece attached to the installation rail and connected to the end of the first piece row of the connection terminal block, and an end of the second piece row of the connection terminal block attached to the fixed piece in a separable manner A separation piece coupled to the fixed piece, and a turning piece that is rotatably held around a turning axis in the longitudinal direction of the installation rail with respect to the fixed piece,
The rotating piece includes a working end extending from the rotation center in a direction orthogonal to the longitudinal direction of the installation rail, and is held at a predetermined normal position in a combined state of the fixed piece and the separating piece,
When the rotating piece is rotated from the normal position, the operating end presses the separating piece, so that the separating piece moves in a direction to separate from the fixed piece, thereby connecting the second piece to the separating piece. A terminal block separator, wherein the row is moved in a direction to separate the first piece portion row. The separation piece is mounted on one side upper part of the fixed piece, the rotating piece is rotatably held on the other side upper part of the fixed piece, and its working end is positioned below the separation piece,
2. The terminal block according to claim 1, wherein when the rotating piece is rotated from the normal position, the separating end is separated from the fixed piece by the action end pushing up the separating piece. Separator. The terminal block includes a conductive metal fitting that forms a connecting portion for connecting a lead wire,
The conductive metal fitting is composed of a first metal fitting attached to the first piece and a second metal fitting attached to the second piece,
In the combined state of the first piece and the second piece, the first metal fitting and the second metal fitting are electrically connected to each other by closely fitting the first metal fitting and the second metal fitting in the vertical direction and press-contacting each other. When the first piece portion and the second piece portion are separated, the second fitting is dropped from the first fitting as the second piece moves relative to the first piece. ,
The position where the action end of the rotating piece pushes up the separating piece is a position where the first metal fitting and the second metal fitting of each terminal block are closely fitted, and a position where they are arranged in a line along the longitudinal direction of the installation rail. The terminal block separator according to claim 2, wherein the terminal block separator is provided on the terminal block.   The rotating piece is provided with a restricting claw that engages with the separating piece and restricts the upward movement of the separating piece at the normal position. When the rotating piece is rotated from the normal position, the restricting claw is separated. The terminal block separator according to claim 2 or 3, wherein the separation piece is retracted from the piece so that the separation piece can be moved upward.   The rotating piece is formed with a lever rod insertion hole in a direction perpendicular to the longitudinal direction of the installation rail. The lever piece is inserted into the lever rod insertion hole, and the lever piece is tilted to tilt the rotating piece. It is comprised so that it can rotate, The terminal block separator of any one of Claim 1 thru | or 4 characterized by the above-mentioned.   The rotating piece is provided with an operating end extending in a direction perpendicular to the longitudinal direction of the installation rail, and the rotating piece can be rotated by pressing the operating end. The terminal block separator according to claim 1, wherein the terminal block separator is provided.   A fixed position that is slidably disposed on the rotating piece and makes contact with the fixed piece so that the rotating piece cannot be rotated from the normal position, and retracted from the fixed piece to enable the rotating piece to rotate. The terminal block separator according to any one of claims 1 to 6, further comprising a lock piece that is slidable at a release position. The rotating piece is formed with a lever rod insertion hole in a direction perpendicular to the longitudinal direction of the installation rail. The lever piece is inserted into the lever rod insertion hole, and the lever piece is tilted to tilt the rotating piece. It is configured to be able to rotate,
8. The terminal block separator according to claim 7, wherein the lock piece closes the lever rod insertion hole at the fixed position and opens at the release position.   The upper end of the lock piece is exposed on the rotary piece, and the lock piece is slid between the fixed position and the release position by operating the upper end part. The terminal block separator according to claim 7 or claim 8. Installation rails;
A connecting terminal block formed by connecting a plurality of terminal blocks, each having a first piece part attached to the installation rail and a second piece part separably attached to the first piece part, along the installation rail; ,
A collective terminal block device comprising the terminal block separator according to any one of claims 1 to 9, which is attached to an end of the connection terminal block.

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