JP7430739B2 - Terminal block - Google Patents

Description

The present invention relates to a terminal block.

Conventionally, a terminal block has a terminal fitting for each number of poles, a screw member for each number of poles that screws and fixes a combination of a pair of terminal fittings and a conductive member for each number of poles, and an external connection to the screw member. Some devices are known that include a cover member that can suppress contact. This type of terminal block is disclosed, for example, in Patent Document 1 below.

Japanese Patent Application Publication No. 2019-185892

By the way, in this conventional terminal block, a plurality of screw members are covered with one cover member, and by removing this cover member, a tool such as a socket can be inserted into each screw member at the same time. For this reason, with conventional terminal blocks, it is possible to touch multiple screw members simultaneously by removing the cover member, so for example, an operator can attach or remove the screw members while being careful to avoid short circuits between the screw members. There is a need to do.

Therefore, an object of the present invention is to provide a terminal block that makes it impossible to simultaneously attach and detach a plurality of screw members.

The present invention provides a housing, a first terminal fitting housed in the housing, a second terminal fitting housed in the housing, and a second terminal fitting housed in the first screw housing chamber of the housing. It is rotatable around the screw axis by a tool inserted along the screw axis direction from the first working opening, and is screwed into the threaded part of the first terminal fitting, and the first conductive terminal is connected to the first terminal fitting. A first screw member that screws and fixes the electrical connection portion of the member, and a first screw member that is inserted into the second screw storage chamber of the housing along the screw axial direction from the second working opening of the second screw storage chamber. a second screw member that is rotatable around the screw axis by the tool and that is screwed into the threaded portion of the second terminal fitting to fix the electrical connection portion of the second conductive member to the second terminal fitting; a first cover member that opens and closes the first working opening; and a second cover member that opens and closes the second working opening, and the first terminal fitting and the second terminal fitting each have a The screw portion is housed in the housing with the screw axes parallel to each other, and the first screw housing chamber and the second screw housing chamber are perpendicular to the respective screw axes of the first screw member and the second screw member. The housing has an axial direction in which the first screw accommodating chamber and the second screw accommodating chamber are arranged, and the first cover member is arranged in an open position and a closed position with respect to the first working opening. a first rotating shaft that rotates the second cover member between an open position and a closed position with respect to the second working opening, the arrangement direction being the axial direction, and a second rotating shaft that rotates the second cover member between an open position and a closed position with respect to the second working opening; , the first cover member in the closed position is rotated to the open position and slid along the first rotation axis toward the second cover member, and the first cover member in the open position rotates the first cover member in the closed position. a first opening direction converter that prevents the second cover member from rotating to the open position; and a first cover that rotates the second cover member from the closed position to the open position while rotating the second cover member from the closed position to the open position. The present invention is characterized in that it has a second opening direction converting part that is slid toward the member side and prevents the second cover member in the open position from rotating the first cover member in the closed position to the open position.

Since the terminal block according to the present invention has a cover structure of the first cover member and the second cover member, in which only one of the first screw member and the second screw member can be attached or detached using a tool, the A short circuit between the screw member and the second screw member can be prevented.

FIG. 1 is a perspective view of the terminal block of the embodiment viewed from the cover member side, showing a state in which rotation of the second cover member in the opening direction is stopped by the first cover member in the open position. . FIG. 2 is a plan view of the terminal block of the embodiment viewed from the cover member side, showing a state in which rotation of the second cover member in the opening direction is stopped by the first cover member in the open position. . FIG. 3 is a sectional view taken along the line X1-X1 in FIG. FIG. 4 is a perspective view of the terminal block of the embodiment viewed from the cover member side, and shows the first cover member and the second cover member each in a closed position. FIG. 5 is a perspective view of the terminal block of the embodiment viewed from the connector fitting part side, showing the first cover member and the second cover member each in a closed position. FIG. 6 is a plan view of the terminal block of the embodiment viewed from the cover member side, showing the first cover member and the second cover member each in a closed position. FIG. 7 is an exploded perspective view of the terminal block. FIG. 8 is a partially enlarged view of a cross section taken along the line YY in FIG. 6. FIG. 9 is a plan view of the terminal block of the embodiment viewed from the cover member side, and shows a state when the first opening direction converting section starts guiding the first cover member. FIG. 10 is a plan view of the terminal block in FIG. 9 as viewed in the direction of arrow A. FIG. 11 is a partially enlarged view of a cross section taken along the line Z1-Z1 in FIG. FIG. 12 is a plan view of the terminal block of the embodiment viewed from the cover member side, and shows the state when the first opening direction converting section finishes guiding the first cover member. FIG. 13 is a plan view of the terminal block of FIG. 12 as viewed in the direction of arrow A. FIG. 14 is a partially enlarged view of a cross section taken along the line Z2-Z2 in FIG. 13. FIG. 15 is a perspective view of the terminal block of the embodiment viewed from the cover member side, showing a state in which the first cover member is in the open position and the second cover member is in the closed position. FIG. 16 is a plan view of the terminal block of the embodiment viewed from the cover member side, showing a state in which the first cover member is in the open position and the second cover member is in the closed position. FIG. 17 is a sectional view taken along the line X2-X2 in FIG. 16. FIG. 18 is a plan view of the terminal block of the embodiment viewed from the cover member side, and shows a state when the first closing direction converting section starts guiding the first cover member. FIG. 19 is a plan view of the terminal block of FIG. 18 as viewed in the direction of arrow A. FIG. 20 is a sectional view taken along the line Z3-Z3 in FIG. 19. FIG. 21 is a plan view of the terminal block of the embodiment viewed from the cover member side, and shows the state when the first closing direction converting section finishes guiding the first cover member. FIG. 22 is a plan view of the terminal block of FIG. 21 viewed in the direction of arrow A. FIG. 23 is a sectional view taken along the line Z4-Z4 in FIG. 22.

EMBODIMENT OF THE INVENTION Below, embodiment of the terminal block based on this invention is described in detail based on drawing. Note that the present invention is not limited to this embodiment.

[Embodiment]
One embodiment of the terminal block according to the present invention will be described based on FIGS. 1 to 23.

Reference numeral 1 in FIGS. 1 to 23 indicates the terminal block of this embodiment. This terminal block 1 is installed, for example, in one electric device (not shown) to electrically connect the first conductive member 510 and the second conductive member 520 in this electric device to another electric device (not shown). provided.

The terminal block 1 includes a first terminal fitting 10 and a second terminal fitting 20 (FIGS. 5 and 7). The terminal block 1 includes a housing 30 in which the first terminal fitting 10 and the second terminal fitting 20 are housed (FIGS. 1 to 23). The first terminal fitting 10 and the second terminal fitting 20 are molded from a conductive material such as metal. Moreover, the housing 30 is molded from an insulating material such as synthetic resin.

In this terminal block 1, a first conductive member 510 is screwed and fixed to a first terminal fitting 10 to physically and electrically connect them, and a second conductive member 520 is screwed to a second terminal fitting 20. They are fastened and fixed to connect them physically and electrically. Therefore, this terminal block 1 includes a first screw member 41 that screws and fixes the first conductive member 510 to the first terminal fitting 10 and a second screw that screws and fixes the second conductive member 520 to the second terminal fitting 20. A member 42 (FIGS. 2, 7, 8, 11, 14, 20, and 23). The first screw member 41 and the second screw member 42 are molded from a conductive material such as metal. However, the first screw member 41 and the second screw member 42 do not necessarily have to be made of a conductive material.

This terminal block 1 includes a first cover member 50 and a second cover member 60 (FIGS. 1 to 23), and when rotating the first screw member 41 around the screw shaft with a tool (not shown), The first cover member 50 is moved to the open position, and when the second screw member 42 is rotated around the screw axis using a tool (not shown), the second cover member 60 is moved to the open position. The first cover member 50 and the second cover member 60 are molded from an insulating material such as synthetic resin.

Moreover, this terminal block 1 has a first terminal fitting 10 fitted with a first mating terminal (not shown) at the end of the electric wire to connect them physically and electrically, and a second terminal fitting 10. By fitting and connecting a second mating terminal (not shown) at the end of the electric wire to 20 and physically and electrically connecting them, the first terminal fitting 10 and the second terminal fitting 20 are connected to each other. Make an electrical connection to the other electrical device at the end of the wire.

The first terminal fitting 10 has a threaded portion 11 into which the first threaded member 41 is screwed and which holds the electrical connection portion 511 of the first conductive member 510 between the first threaded member 41 (FIG. 7). , FIGS. 8 and 17). This threaded portion 11 may be formed as a female threaded portion or may be formed as a male threaded portion. Regarding the first screw member 41, a male screw member or a female screw member is used depending on the form of this screw portion 11. The threaded portion 11 shown here is formed as a female threaded portion. Therefore, the first screw member 41 formed as a male screw member is used here.

Further, the first terminal fitting 10 has a terminal portion 12 that fits and connects the mating terminal portion of the first mating terminal (FIGS. 5, 7, and 17). This terminal portion 12 may be formed in the shape of a female terminal or may be formed in the shape of a male terminal. The terminal portion 12 shown here is formed in the shape of a male terminal, and is inserted into and fitted into the mating terminal portion of the first mating terminal formed in the shape of a female terminal.

The second terminal fitting 20 has a threaded portion 21 that screws into the second threaded member 42 and holds the electrical connection portion 521 of the second conductive member 520 between the second threaded member 42 (FIG. 3). , Figures 7 and 8). This threaded portion 21 may be formed as a female threaded portion or may be formed as a male threaded portion. As for the second screw member 42, a male screw member or a female screw member is used depending on the form of this screw portion 21. The threaded portion 21 shown here is formed as a female threaded portion. Therefore, the second screw member 42 formed as a male screw member is used here.

Further, the second terminal metal fitting 20 has a terminal portion 22 that fits and connects a mating terminal portion of the second mating terminal (FIGS. 5 and 7). This terminal portion 22 may be formed in the shape of a female terminal or may be formed in the shape of a male terminal. The terminal portion 22 shown here is formed in the shape of a male terminal, and is inserted into and fitted into the mating terminal portion of the second mating terminal formed in the shape of a female terminal.

The first terminal fitting 10 and the second terminal fitting 20 may be formed into different shapes, or may be formed as the same component. Here, the first terminal fitting 10 and the second terminal fitting 20 are molded as the same component. The first terminal fitting 10 shown here has a concentric screw portion 11 formed at one end of a cylindrical main body, and uses the other end side of this main body as a terminal portion 12. A tactile prevention member 15 made of an insulating material such as synthetic resin is provided at the tip of the terminal portion 12 (FIGS. 5 and 17). Further, the second terminal fitting 20 shown here has a concentric screw portion 21 formed at one end of a cylindrical main body, and uses the other end side of this main body as a terminal portion 22. A finger prevention member 25 made of an insulating material such as synthetic resin is provided at the tip of the terminal portion 22 (FIG. 5).

The first terminal fitting 10 and the second terminal fitting 20 are housed in the housing 30 with the screw axes of the respective threaded portions 11 and 21 parallel to each other, regardless of whether they are the same part or not. Therefore, in the first terminal fitting 10 and the second terminal fitting 20, in the housing 30, the opening of the threaded part 11 into which the first threaded member 41 is inserted and the opening in the threaded part 21 into which the second threaded member 42 is inserted. and their mouths open in the same direction.

The housing 30 has a first screw housing chamber 31 in which the screw portion 11 of the first terminal fitting 10, the first screw member 41, and the electrical connection portion 511 of the first conductive member 510 are accommodated (FIGS. 1 and 2). , FIGS. 8, 9, 11, 12, 14 to 18, 20, 21 and 23). The first screw member 41 is inserted into the first screw housing chamber along the screw axial direction from the first working opening 31a (FIGS. 1, 2, 8, 9, 12, 15 to 18 and 21). 31. The first screw member 41 is screwed into the screw portion 11 of the first terminal fitting 10 in the first screw storage chamber 31, and the first screw member 41 is screwed into the first terminal fitting 10 to electrically connect the first conductive member 510 to the first terminal fitting 10. The connecting portion 511 is fixed with a screw.

In the first screw storage chamber 31, the first working opening 31a is arranged to face the first screw member 41 in the screw axis direction. Therefore, the first screw member 41 is screwed in the first screw housing chamber 31 by a tool such as a socket inserted from the first working opening 31a of the first screw housing chamber 31 along the screw axis direction. It can be rotated around the axis. Here, the head 41a of the first screw member 41 and the first working opening 31a are arranged to face each other in the screw axis direction (FIGS. 1, 2, 8, 9, 12, and 15 to 18). ), the head 41a of the first screw member 41 is inserted into the tool.

The first screw housing chamber 31 is an opening that is perpendicular to the first working opening 31a, and has a first insertion/extraction opening 31b for inserting/extracting the electrical connection portion 511 of the first conductive member 510 into/from the chamber. (FIG. 1, FIG. 2, FIG. 6, FIG. 9, FIG. 11, FIG. 12, FIG. 14 to FIG. 18, FIG. 20, FIG. 21, and FIG. 23).

Furthermore, this housing 30 has a second screw housing chamber 32 in which the screw portion 21 of the second terminal fitting 20, the second screw member 42, and the electrical connection portion 521 of the second conductive member 520 are accommodated (see FIG. 1). 3, FIG. 8, FIG. 11, FIG. 14, FIG. 20 and FIG. 23). The second screw member 42 is inserted into the second screw housing chamber 32 from the second working opening 32a (FIGS. 1 to 3 and 8) along the screw axis direction. Then, the second screw member 42 is screwed into the screw portion 21 of the second terminal fitting 20 in the second screw storage chamber 32, and the second screw member 42 is screwed into the second terminal fitting 20 so that the second conductive member 520 is electrically connected to the second terminal fitting 20. The connecting portion 521 is fixed with a screw.

In the second screw storage chamber 32, the second working opening 32a is arranged to face the second screw member 42 in the screw axis direction. Therefore, the second screw member 42 is screwed in the second screw storage chamber 32 by a tool such as a socket inserted from the second working opening 32a of the second screw storage chamber 32 along the screw axis direction. It can be rotated around the axis. Here, the head 42a of the second screw member 42 and the second working opening 32a are arranged to face each other in the screw axis direction (FIGS. 2, 3, and 8), and the head of the second screw member 42 is attached to the tool. The portion 42a is inserted.

The second screw storage chamber 32 is an opening perpendicular to the second working opening 32a, and has a second insertion/extraction opening 32b for inserting/extracting the electrical connection portion 521 of the second conductive member 520 into/from the chamber. (FIGS. 1 to 3, FIG. 6, FIG. 9, FIG. 11, FIG. 12, FIG. 14, FIG. 16, FIG. 18, FIG. 20, FIG. 21, and FIG. 23).

The first screw housing chamber 31 and the second screw housing chamber 32 shown here are a first screw member 41 (threaded portion 11 of the first terminal fitting 10) and a second screw member 42 (threaded portion 21 of the second terminal fitting 20). ) are arranged side by side in a direction perpendicular to their respective screw axes. Further, the first screw housing chamber 31 and the second screw housing chamber 32 shown here each have a first working opening 31a and a second working opening 32a which are rectangular in substantially the same shape.

A first cover member 50 is attached to the housing 30 to open and close the first working opening 31a. Further, a second cover member 60 is assembled to the housing 30 to open and close the second working opening 32a.

The first cover member 50 rotates between an open position (FIGS. 1 to 3 and 15 to 17) and a closed position (FIGS. 4 to 6 and 8) with respect to the first working opening 31a. let The first cover member 50 has a workable position where the first screw member 41 can be rotated around the axis by a tool between an open position and a closed position, and a workable position where the first screw member 41 can be rotated around the axis by a tool. A work-disabled position where rotation is not possible is set. The first cover member 50 is at least in its open position with respect to the first working opening 31a, which is the workable position. For example, the first cover member 50 exposes the entire first screw member 41 (here, the head 41a) from the first working opening 31a in the screw axial direction only when the first cover member 50 is in the open position. The first screw member 41 is rotated around the axis using a tool only at the position.

Further, the second cover member 60 is rotated between the open position and the closed position with respect to the second working opening 32a. The second cover member 60 has a workable position in which the second screw member 42 can be rotated around the axis by a tool between an open position and a closed position, and a workable position in which the second screw member 42 can be rotated around the axis by a tool. A work-disabled position where rotation is not possible is set. The second cover member 60 is at least in the open position relative to the second working opening 32a, which is the working position. For example, the second cover member 60 exposes the entire second screw member 42 (here, the head 42a) from the second working opening 32a in the screw axis direction only when the second cover member 60 is in the open position. The second screw member 42 is rotated around the axis using a tool only at the position.

When the first cover member 50 is in the open position with respect to the first working opening 31a, the second cover member 60 in the closed position is stopped in an unworkable position, and the second screw member 42 cannot be attached or detached using a tool. (Figures 1 to 3). When the second cover member 60 is in the open position with respect to the second working opening 32a, the first cover member 50 in the closed position is stopped in the unworkable position, so that the attachment and detachment of the first screw member 41 using a tool is not possible. make it impossible to do so.

The housing 30 has an axial direction in which the first screw storage chamber 31 and the second screw storage chamber 32 are arranged (hereinafter referred to as the "accommodation chamber arrangement direction"), and the first cover member 50 is aligned with the first working opening 31a. The first rotating shaft 33a rotates between the open position and the closed position, and the direction in which the storage chambers are arranged is the axial direction, and the second cover member 60 is rotated between the open position and the closed position with respect to the second working opening 32a. It has a second rotating shaft 33b that is rotated by. Here, the first rotating shaft 33a and the second rotating shaft 33b are coaxially arranged side by side (Figs. 5 to 7, 10 to 14, 16, 18 to 20, 22 and 23).

The first cover member 50 includes a cover main body 51 that closes the first working opening 31a in the closed position, and a J-shaped protrusion 52 that projects from one end of the cover main body 51 to the indoor side of the first screw storage chamber 31. (FIG. 1, FIG. 3, FIG. 4, FIG. 6, FIG. 7, FIG. 10, FIG. 13, FIG. 15, FIG. 17, FIG. 19 and FIG. 22). The first cover member 50 uses the arcuate end portion of the protruding body 52 in the protruding direction as the bearing portion 53 of the first rotating shaft 33a (FIGS. 1, 4 to 7, 10, 11, 13 to 15, FIG. 17, FIG. 19, FIG. 20, FIG. 22 and FIG. 23). A cylindrical first rotating shaft 33a is fitted into the bearing portion 53 so as to be relatively rotatable. In the housing 30, a first rotating shaft 33a is provided at a location where the bearing portion 53 is disposed.

The first cover member 50 has a locking portion 54 that locks with the first locked portion 34a of the housing 30 in the closed position so that the first cover member 50 can be held in the housing 30 in the closed position (FIGS. 1, 2, 6 to 9, FIG. 12, FIG. 15, FIG. 16, FIG. 18 and FIG. 21). The locking portion 54 is formed as a protrusion that protrudes from the other end of the cover main body 51 in one direction in the arrangement direction of the storage chambers. The housing 30 has a first piece 35a that is arranged to face the locking part 54 in the closed position in the housing chamber arrangement direction (FIGS. 1, 2, 6 to 9, 12, 15, 16). , FIGS. 18 and 21). This first piece part 35a is formed as a flat flexible piece part 35a ₁ , a part of which has flexibility in _the direction crossing the plane. The wall surface is arranged to face the locking part 54 in the closed position in the arrangement direction of the storage chambers. The flexible piece 35a ₁ has a protruding first locked portion 34a protruding from its inner wall surface toward the other side in the arrangement direction of the storage chambers.

In the housing 30, when the first cover member 50 is rotated from the closed position to the open position around the first rotating shaft 33a, the first locked part 34a receives a force from the locking part 54. The flexible piece portion _35a1 is bent outward to cause the locking portion 54 to ride over the first locked portion 34a. As a result, in this housing 30, the locking state of the locking portion 54 in the closed position by the first locked portion 34a is released, and the first cover member 50 can be rotated toward the open position. The cover main body 51 is provided with a bulge 55 on which an operator's fingers or the like is caught when rotating the first cover member 50 from the closed position to the open position (see FIGS. 1 to 4 and 6 to 6). 10, FIGS. 12, 13, 15 to 19, 21 and 22).

Further, in the housing 30, when the first cover member 50 is rotated from the open position to the closed position around the first rotating shaft 33a, the first locked portion receives a force from the locking portion 54. 34a bends the flexible piece portion _35a1 outward, causing the locking portion 54 to ride over the first locked portion 34a. As a result, in this housing 30, the first cover member 50 can reach the closed position, and the locking part 54 can be held in the closed position by the first locked part 34a (see FIG. 4, Figures 6 and 8).

The second cover member 60 includes a cover main body 61 that closes the second working opening 32a in the closed position, and a J-shaped protrusion 62 that projects from one end of the cover main body 61 to the indoor side of the second screw storage chamber 32. (Figures 1, 3, 4, 6, 7, 9, 10, 12, 13, 15, 16, 18, 19, 21, and 22) . This second cover member 60 uses the arcuate end portion of the protruding body 62 in the protruding direction as the bearing portion 63 of the second rotating shaft 33b (FIG. 1, FIG. 3, FIG. 4, FIG. 6, FIG. 7, 9 to 16 and 18 to 23). A cylindrical second rotating shaft 33b is fitted into the bearing portion 63 so as to be relatively rotatable. In the housing 30, a second rotating shaft 33b is provided at a location where the bearing portion 63 is disposed.

This second cover member 60 has a locking portion 64 that locks with the second locked portion 34b of the housing 30 in the closed position so that the second cover member 60 can be held in the housing 30 in the closed position (FIGS. 2, 3, 6 to 9, FIG. 12, FIG. 16, FIG. 18 and FIG. 21). The locking portion 64 is formed as a protrusion projecting from the other end of the cover main body 61 in the other direction in the arrangement direction of the storage chambers. The housing 30 has a second piece 35b that is arranged to face the locking part 64 in the closed position in the housing chamber arrangement direction (FIGS. 2 to 4, FIGS. 6 to 9, 12, 16, and 18). and Figure 21). This second piece portion 35b is formed as a flat flexible piece portion _35b1 , a portion of which is flexible in the direction crossing the plane, and the planar inner surface of this flexible piece portion _35b1 is The wall surface is arranged to face the locking portion 64 in the closed position in the arrangement direction of the storage chambers. The flexible piece 35b ₁ has a protruding second locked portion 34b protruding from its inner wall surface in one direction in the arrangement direction of the storage chambers.

In the housing 30, when the second cover member 60 is rotated from the closed position to the open position around the second rotating shaft 33b, the second locked portion 34b receives a force from the locking portion 64. The flexible piece portion _35b1 is bent outward to cause the locking portion 64 to ride over the second locked portion 34b. As a result, in the housing 30, the locking state of the locking portion 64 in the closed position by the second locked portion 34b is released, and the second cover member 60 can be rotated toward the open position. The cover main body 61 is provided with a bulge 65 on which an operator's fingers or the like is caught when rotating the second cover member 60 from the closed position to the open position (see FIGS. 1 to 4 and 6 to 6). 10, FIGS. 12, 13, 15 to 19, 21 and 22).

Further, in the housing 30, when the second cover member 60 is rotated from the open position to the closed position around the second rotating shaft 33b, a second locked portion receives a force from the locking portion 64. 34b bends the flexible piece portion _35b1 outward, causing the locking portion 64 to ride over the second locked portion 34b. As a result, in this housing 30, the second cover member 60 can reach the closed position, and the locking part 64 can be held in the closed position by the second locked part 34b (see FIG. 4, Figures 6 and 8).

When at least one of the first cover member 50 and the second cover member 60 is in the closed position, a pressing force is applied from one to the other in the storage chamber arrangement direction, and the other is stored from the one. A pressing portion is provided to separate the chambers in the direction of arrangement of the chambers. This pressing portion maintains the locking portion 54 of the first cover member 50 locked to the first locked portion 34a when each of the first cover member 50 and the second cover member 60 is in the closed position. This is provided to keep the locking portion 64 of the second cover member 60 locked to the second locked portion 34b. Here, the second cover member 60 is provided with a pressing portion 66 (FIGS. 6, 8 to 10, 12, 16 to 18, and 21). The pressing portion 66 is a protrusion that protrudes from the cover main body 61 in one direction in the arrangement direction of the storage chambers, and is pressed against the cover main body 51 when the first cover member 50 and the second cover member 60 are each in the closed position. A pressing force is applied to separate the cover from the main body 61 in the arrangement direction of the storage chambers.

The housing 30 has a cover structure that allows the first cover member 50 and the second cover member 60 to perform the following operations when the first cover member 50 and the second cover member 60 are opened and closed. ing. In addition, in the figure, only the operation when the first cover member 50 is opened to the open position is shown as an example.

The housing 30 rotates the first cover member 50 from the closed position to the open position and slides it toward the second cover member 60 along the first rotating shaft 33a, so that the first cover member 50 from the open position returns to the closed position. It has a first opening direction converting part 36a that prevents the second cover member 60 from rotating to the open position (FIGS. 1, 2, 4 to 6, 9 to 16, and 18 to 23). . The first opening direction converting section 36a rotates the first cover member 50 through a first rotation so that the first cover member 50 in the open position can keep the second cover member 60 in the closed position in an unworkable position. It is slid toward the second cover member 60 along the first rotating shaft 33a while being rotated toward the open position around the shaft 33a. In other words, the first opening direction converting portion 36a prevents the second screw member 42 from being attached or detached using a tool when the first cover member 50 is opened and the first screw member 41 is attached or detached using a tool. It is set up for the purpose of Therefore, this terminal block 1 can prevent a short circuit between the first screw member 41 and the second screw member 42 when the first screw member 41 is attached or detached.

For example, the first opening direction converting section 36a shown here comes into contact with the first cover member 50 in the closed position when it rotates toward the open position, and receives rotational torque in the opening direction from the first cover member 50. It is formed as an inclined portion that converts the force into a force toward the second cover member 60 along the first rotating shaft 33a, and causes the force to act on the first cover member 50 as a reaction force (see FIGS. 9 to 9). 14). Therefore, the first opening direction converting section 36a continues to rotate the first cover member 50 toward the open position around the first rotation shaft 33a, thereby moving the first cover member 50 toward the first rotation shaft. 33a toward the second cover member 60.

Here, in the housing 30, if the first cover member 50 is further opened beyond the open position, there is a possibility that the second cover member 60 may be able to rotate to the workable position. Therefore, the housing 30 has a first cover locking portion 37a that locks the first cover member 50 in the open position (FIGS. 1, 4 to 7, 9 to 11, and 13 to 7). 15, FIGS. 17 and 19 to 23). This first cover locking portion 37a is a stopper that stops further rotation of the first cover member 50 that has rotated to the open position, and is provided at a location where the first cover member 50 that has rotated to the open position collides with each other. . Here, the protruding body 52 of the first cover member 50 that has been rotated to the open position is brought into contact with the first cover locking portion 37a (FIG. 17). Thereby, this terminal block 1 can enhance the short-circuit prevention effect between the first screw member 41 and the second screw member 42 when the first screw member 41 is attached and detached.

Further, the housing 30 rotates the second cover member 60 from the closed position to the open position and slides it toward the first cover member 50 along the second rotating shaft 33b, and rotates the second cover member 60 from the open position to the first cover member 50 side. 1 to 6, FIGS. 9 to 16, and FIGS. 18 to 23). The second opening direction converting section 36b rotates the second cover member 60 through a second rotation so that the second cover member 60 in the open position can keep the first cover member 50 in the closed position in an unworkable position. It is slid toward the first cover member 50 along the second rotating shaft 33b while being rotated around the shaft 33b toward the open position. In other words, the second opening direction converting portion 36b prevents the tool from attaching and detaching the first screw member 41 when the second cover member 60 is opened and the second screw member 42 is attached and detached using a tool. It is set up for the purpose of Therefore, this terminal block 1 can prevent a short circuit between the first screw member 41 and the second screw member 42 when the second screw member 42 is attached or detached.

For example, like the first opening direction converting part 36a, the second opening direction converting part 36b shown here comes into contact with the second cover member 60 in the closed position when it rotates toward the open position. The rotational torque in the opening direction received from the second cover member 60 is converted into a force toward the first cover member 50 along the second rotation axis 33b, and the force is applied to the second cover member 60 as a reaction force. It is formed as a slope. Therefore, the second opening direction converting section 36b continues to rotate the second cover member 60 toward the open position around the second rotation shaft 33b, thereby moving the second cover member 60 toward the second rotation shaft. 33b toward the first cover member 50.

Here, in the housing 30, if the second cover member 60 is further opened beyond the open position, there is a possibility that the first cover member 50 may be able to rotate to the workable position. Therefore, the housing 30 has a second cover locking part 37b that locks the second cover member 60 in the open position (FIGS. 1 to 7, FIGS. 9 to 16, FIGS. 18 and 19 to 23). This second cover locking portion 37b is a stopper that stops further rotation of the second cover member 60 that has rotated to the open position, and is provided at a location where the second cover member 60 that has rotated to the open position collides with each other. . Here, the protrusion 62 of the second cover member 60 that has been rotated to the open position is brought into contact with the second cover locking portion 37b. Thereby, this terminal block 1 can enhance the short circuit prevention effect between the first screw member 41 and the second screw member 42 when the second screw member 42 is attached and detached.

In this way, in this terminal block 1, when the first cover member 50 is opened, the first cover member 50 slides sideways toward the second cover member 60 along the first rotating shaft 33a. When closing the first cover member 50 from the open position to the closed position, it is necessary to return it to its original position on the first rotating shaft 33a. Further, in this terminal block 1, when the second cover member 60 is opened, the second cover member 60 slides sideways toward the first cover member 50 along the second rotating shaft 33b. When closing the second cover member 60 from the open position to the closed position, it is necessary to return it to its original position on the second rotation shaft 33b.

Therefore, the housing 30 includes a first closing direction converting section 38a that rotates the first cover member 50 in the open position to the closed position and slides it in a direction away from the second cover member 60 along the first rotating shaft 33a. , a second closing direction converting part 38b that rotates the second cover member 60 in the open position to the closed position and slides it in a direction away from the first cover member 50 along the second rotation axis 33b. (FIG. 4 to FIG. 6, FIG. 9 to FIG. 11, FIG. 13, FIG. 14, FIG. 17 and FIG. 19 to FIG. 23).

For example, the first closing direction converting section 38a shown here comes into contact with the first cover member 50 in the open position when it rotates toward the closed position, and receives rotational torque in the closing direction from the first cover member 50. is formed as an inclined portion that converts the force into a force in the direction away from the second cover member 60 along the first rotating shaft 33a, and causes the force to act on the first cover member 50 as a reaction force (see FIG. 18). Figure 23). Therefore, the first closing direction converting section 38a continues to rotate the first cover member 50 around the first rotation shaft 33a toward the closed position, thereby moving the first cover member 50 toward the first rotation shaft. 33a can be slid back to its original position away from the second cover member 60. Therefore, the first cover member 50 can be brought to the closed position simply by rotating it from that position toward the closed position. In this way, the terminal block 1 can be moved to the closed position by simply continuing to rotate the first cover member 50 from the open position around the first rotating shaft 33a toward the closed position. Since the first cover member 50 can be closed, the workability when closing the first cover member 50 can be improved.

For example, the second closing direction converting section 38b shown here comes into contact with the second cover member 60 in the open position when it rotates toward the closed position, similarly to the first closing direction converting section 38a, The rotational torque in the closing direction received from the second cover member 60 is converted into a force in the direction away from the first cover member 50 along the second rotation axis 33b, and the force is applied to the second cover member 60 as a reaction force. It is formed as a sloped portion that acts as a. Therefore, the second closing direction converting section 38b continues to rotate the second cover member 60 around the second rotation shaft 33b toward the closed position, thereby moving the second cover member 60 toward the second rotation shaft. 33b can be slid back to its original position away from the first cover member 50. Therefore, the second cover member 60 can be brought to the closed position simply by rotating it from that position toward the closed position. In this way, this terminal block 1 can be moved to the closed position by simply continuing to rotate the second cover member 60 from the open position around the second rotating shaft 33b toward the closed position. Since the second cover member 60 can be closed, the workability when closing the second cover member 60 can be improved.

This terminal block 1 can connect a mating terminal part of the first mating terminal to a terminal of the first terminal fitting 10 by, for example, fitting and connecting a mating connector (not shown) having a first mating terminal and a second mating terminal. 12 , and the other party terminal portion of the second counterpart terminal is fitted and connected to the terminal portion 22 of the second terminal fitting 20 . Therefore, the housing 30 has a cylindrical first connector fitting part in which the terminal part 12 of the first terminal fitting 10 is housed, and into which the other party terminal part of the first counterpart terminal is inserted. 39a, and a cylindrical second connector fitting part 39b in which the terminal part 22 of the second terminal fitting 20 is housed and into which the other party terminal part of the second counterpart terminal is inserted. (FIG. 1, FIG. 4, FIG. 5, FIG. 7, FIG. 10, FIG. 13, FIG. 15, FIG. 19 and FIG. 22). The first connector fitting portion 39a and the second connector fitting portion 39b are provided with a mating connector fitting portion (not shown) of a mating housing that accommodates the mating terminal portions of the first mating terminal and the second mating terminal, respectively. Fitted and connected.

By the way, the housing 30 shown here includes a housing main body 30A and a cover holding member 30B that is assembled to the housing main body 30A and rotatably holds the first cover member 50 and the second cover member 60. (Figures 1 to 23).

Here, two spaces created when the housing main body 30A and the cover holding member 30B are assembled are used as the first screw housing chamber 31 and the second screw housing chamber 32, respectively. Further, the housing main body 30A is provided with a first cover locking portion 37a, a second cover locking portion 37b, a first connector fitting portion 39a, and a second connector fitting portion 39b. The cover holding member 30B also includes a first rotating shaft 33a, a second rotating shaft 33b, a first locked portion 34a, a second locked portion 34b, a first piece 35a, a second piece 35b, and a second locked portion 34b. A first open direction converter 36a, a second open direction converter 36b, a first close direction converter 38a, and a second close direction converter 38b are provided.

Here, in the housing main body 30A, a flat third piece 35c is provided between the flexible pieces 35a ₁ and 35b ₁ of the first piece 35a and the second piece 35b of the assembled cover holding member 30B. (FIG. 1, FIG. 2, FIG. 6 to FIG. 9, FIG. 11, FIG. 12, FIG. 14 to FIG. 18, FIG. 20, FIG. 21, and FIG. 23). In this housing 30, the space between the flexible piece part _35a1 of the first piece part 35a and the third piece part 35c is used as the first screw housing chamber 31, and the flexible piece part of the second piece part 35b The space between 35b ₁ and the third piece 35c is used as the second screw housing chamber 32.

In addition, in this housing 30, the first opening direction converting part 36a is provided on the protrusion protruding from the inner wall surface of the first piece 35a, and the second opening direction converting part 36a is provided on the protrusion protruding from the inner wall surface of the second piece 35b. An opening direction changing section 36b is provided.

Further, the cover holding member 30B is provided with a flat fourth piece 35d between the first piece 35a and the second piece 35b in the storage chamber arrangement direction (Figs. 3 to 7, and 9 11, 13, 14, 17 and 19 to 23). In this housing 30, a first rotating shaft 33a is provided between the first piece 35a and the fourth piece 35d, and a first rotating shaft 33a is provided between the second piece 35b and the fourth piece 35d. Two rotating shafts 33b are provided. The first closing direction converting section 38a and the second closing direction converting section 38b are provided at the end of the fourth piece 35d.

Further, the first cover locking portion 37a is provided on the housing main body 30A as an L-shaped protrusion, and the first rotating shaft 33a of the cover holding member 30B is disposed inside the L-shape. The second cover locking portion 37b is provided on the housing main body 30A as an L-shaped protrusion, and the second rotation shaft 33b of the cover holding member 30B is disposed inside the L-shape.

Between the housing main body 30A and the cover holding member 30B, locking mechanisms 30C are provided at multiple locations to hold them in the assembled state (see FIGS. 1, 2, 4, 6, 9 to 9). 16 and FIGS. 19 to 23). This locking mechanism 30C includes a first locking portion 30C ₁ provided on the housing body 30A and a second locking portion 30C ₂ provided on the cover holding member 30B (FIGS. 1, 4, and 15). For example, at least one of the first locking portion 30C ₁ and the second locking portion 30C ₂ is provided as a claw-like projection, and the housing main body 30A and the cover holding member 30B are assembled between them. Lock it when it is turned on. Here, for example, one second locking part 30C2 is provided on each of the first piece 35a and second piece 35b of the cover holding member 30B, and a second locking part _30C2 is provided in accordance with the position of each second locking part _30C2 . One locking portion _30C1 is provided in each housing body 30A.

As shown above, the terminal block 1 of this embodiment adopts the cover structure of the first cover member 50 and the second cover member 60 in which only one of the first screw member 41 and the second screw member 42 can be attached or detached using a tool. Therefore, it is possible to prevent a short circuit between the first screw member 41 and the second screw member 42 during the attachment/detachment operation. Then, after removing the first screw member 41 and the second screw member 42, this terminal block opens the first insertion/extraction port 31b and the The electrical connection part 511 of the first electrically conductive member 510 and the electrical connection part 521 of the second electrically conductive member 520 in one electrical device can be extracted from the second insertion/extraction opening 32b. Therefore, the terminal block 1 of the present embodiment can prevent short-circuiting of the two poles (the first terminal fitting 10 and the second terminal fitting 20) until it is removed from one electric device.

Furthermore, the terminal block 1 of this embodiment prevents the first cover member 50 from moving to the workable position of the second cover member 60 by simply rotating the first cover member 50 in the closed position in the opening direction. By simply rotating the second cover member 60 in the closed position in the opening direction, the second cover member 60 can be moved to the workable position of the first cover member 50. It can be caused to skid to a position where it can be stopped. Therefore, this terminal block 1 can improve workability when attaching and detaching the first screw member 41 and the second screw member 42.

Furthermore, the terminal block 1 of the present embodiment can move the first cover member 50 from the open position to the closed position while sliding sideways by simply rotating the first cover member 50 in the closing direction, and By simply rotating the second cover member 60 in the open position in the closing direction, the second cover member 60 can be moved sideways to the closed position. Therefore, this terminal block 1 can improve workability when attaching and detaching the first screw member 41 and the second screw member 42 from this point as well.

Furthermore, the terminal block 1 of this embodiment can open and close the first cover member 50 without hitting the second cover member 60, and without hitting the second cover member 60 with the first cover member 50. It can be opened and closed. Therefore, this terminal block 1 can improve workability when attaching and detaching the first screw member 41 and the second screw member 42 from this point as well.

Furthermore, the terminal block 1 of this embodiment allows the first cover member 50 and the second cover member 60 to be opened and closed without removing it from the housing 30, compared to a conventional terminal block that requires attachment and detachment of the cover member from the housing. be able to. Therefore, the terminal block 1 of the present embodiment can improve workability when attaching and detaching the first screw member 41 and the second screw member 42 from this point as well.

Furthermore, the terminal block 1 of the present embodiment allows the first cover member 50 to be held in the closed position by the housing 30 with a single locking mechanism using the first locked portion 34a and the locking portion 54, and The second cover member 60 is held in the closed position on the housing 30 by a single locking mechanism using the second locked portion 34b and the locking portion 64. Therefore, since the terminal block 1 of this embodiment requires attachment and detachment from the housing, the first cover member can be attached and detached with a light force compared to a conventional terminal block in which the cover member is held in the housing by locking mechanisms at multiple locations. 50 and the second cover member 60, the workability when attaching and detaching the first screw member 41 and the second screw member 42 can be improved from this point as well.

1 Terminal block 10 First terminal fitting 11 Thread part 20 Second terminal fitting 21 Thread part 30 Housing 31 First screw accommodation chamber 31a First work opening 32 Second screw accommodation chamber 32a Second work opening 33a First rotation shaft 33b Second rotating shaft 36a First opening direction converting part 36b Second opening direction converting part 37a First cover locking part 37b Second cover locking part 38a First closing direction converting part 38b Second closing direction converting part 41 First Screw member 42 Second screw member 50 First cover member 60 Second cover member 510 First conductive member 511 Electrical connection portion 520 Second conductive member 521 Electrical connection portion

Claims (4)

housing and
a first terminal fitting accommodated in the housing;
a second terminal fitting accommodated in the housing;
The first terminal is rotatable around the screw axis in the first screw housing chamber of the housing by a tool inserted along the screw axis direction from the first working opening of the first screw housing chamber; a first screw member that is screwed into the threaded portion of the metal fitting and screws and fixes the electrical connection portion of the first conductive member to the first terminal metal fitting;
In the second screw housing chamber of the housing, the second screw housing is rotatable around the screw axis by the tool inserted along the screw axis direction from the second working opening of the second screw housing chamber, and a second screw member that is screwed into the screw portion of the terminal fitting to screw and fix the electrical connection portion of the second conductive member to the second terminal fitting;
a first cover member that opens and closes the first working opening;
a second cover member that opens and closes the second working opening;
Equipped with
The first terminal fitting and the second terminal fitting are housed in the housing with the screw axes of the respective screw portions parallel to each other,
The first screw storage chamber and the second screw storage chamber are arranged side by side in a direction perpendicular to the respective screw axes of the first screw member and the second screw member,
The housing has an axial direction in which the first screw accommodating chamber and the second screw accommodating chamber are arranged, and rotates the first cover member between an open position and a closed position with respect to the first working opening. a first rotating shaft; a second rotating shaft having the arrangement direction as an axial direction and rotating the second cover member between an open position and a closed position with respect to the second working opening; 1 cover member is rotated to the open position and slid toward the second cover member along the first rotation axis, so that the first cover member is in the open position and the second cover member is in the closed position. a first opening direction converter that prevents the second cover member from rotating toward the first cover member, and a first opening direction converting portion that prevents the second cover member from rotating to the open position; A terminal block comprising: a second opening direction converting part that prevents the second cover member in the open position from rotating the first cover member in the closed position to the open position. The housing includes a first cover locking portion that locks the first cover member in the open position, and a second cover locking portion that locks the second cover member in the open position. The terminal block according to claim 1. The first cover member has a workable position in which the tool can rotate the first screw member around the axis between the open position and the closed position, and a workable position in which the tool can rotate the first screw member around the axis. A work-disabled position is set in which the surroundings cannot be rotated.
The second cover member has a workable position in which the tool can rotate the second screw member about its axis between the open position and the closed position, and a workable position in which the tool can rotate the second screw member around the axis. A work-disabled position is set in which the surroundings cannot be rotated.
the first cover member stops the second cover member in the closed position in an unworkable position when the first cover member is in the open position;
3. The terminal block according to claim 1, wherein the second cover member stops the first cover member in the closed position in an unworkable position when the second cover member is in the open position. The housing includes a first closing direction converting section that rotates the first cover member in the open position to the closed position and slides the first cover member in a direction away from the second cover member along the first rotation axis; A second closing direction converting section that rotates the second cover member to a closed position and slides the second cover member in a direction away from the first cover member along the second rotation axis. Terminal block according to item 1, 2 or 3.

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