TWI780818B - Connection device - Google Patents

Abstract

In the connection device, when the elastic member (4) is in the non-connected state, the restoring force vector (81) of the elastic member (4) is roughly overlapped with the reference line (82), which is the straight line connecting the first part (513) and the second part (514), and the restoring force and the reaction force are balanced. This maintains the position of the actuator (5) and keeps the state of the elastic member (4) in a non-connected state. When the wire inserted between the terminal part (3) and the elastic member (4) in the non-connected state, the position of the actuator (5) is changed and the restoring force vector (81) shifts from the reference line (82). As a result, the elastic member (4) is restored from the non-connected state by the restoring force, and shifts to the connected state where the wire is held between the terminal part (3) and the elastic member (4). This simplifies the structure of the connection device.

Description

connecting device

The invention relates to a connecting device for connecting power supply lines. (reference to related applications) This case claims the right of priority based on the Japanese patent application JP2020-122599 filed on July 17, 2020, and the Japanese patent application JP2020-169408 filed on October 6, 2020, and is incorporated in this case The entire disclosure content of these applications.

Conventionally, a so-called push-in connection device has been used as a connection device for connecting a power supply line to a control panel or the like. In the connecting device, the electric wire is inserted into the insertion hole of the casing, and the electric wire is pressed against the conduction terminal by a leaf spring provided in the casing to electrically connect.

For example, in the wire connection device of Japanese Patent No. 4202125 (Document 1), a bar-shaped operation key that can move forward and backward relative to the housing is provided. In this wire connection device, by pressing the rod-shaped operation key into the housing, the leaf spring in the housing is elastically deformed and separated from the conductive metal member. The front end of the rod-shaped operation key is engaged with the leaf spring to maintain the shape of the leaf spring. Thereby, the plate spring maintains an open state separated from the conductive metal member. Then, after the electric wire is inserted into the electric wire connecting device in the open state, by pulling out the rod-shaped operation key from the casing, the plate spring recovers elastically to hold the electric wire between the plate spring and the conductive metal member.

In this electric wire connecting device, when connecting electric wires, it is necessary to pull out the bar-shaped operation key from the casing while maintaining the state in which the electric wires are inserted into the open state of the electric wire connecting device. Therefore, the operation of connecting the electric wires is complicated, and it is difficult to shorten the time required for the connection work. In addition, since the operator needs to hold the wire with one hand and operate the stick-shaped operation key with the other hand, it is difficult to perform the connection work with one hand.

On the other hand, in the connecting device of Japanese Patent No. 6675004 (Document 2), by pressing the operating part toward the inside of the case, the leaf spring in contact with the operating part is bent to a non-connected state, and the In this state, the operating portion is locked to the step portion of the case, thereby maintaining the state of the leaf spring in a non-connected state. In addition, in this connecting device, by pressing and rotating the state releasing portion with an electric wire inserted into the case, the state releasing portion pushes the above-mentioned operation portion out of the step portion of the case. Thereby, the locking of the operation part to the case is released, and the leaf spring returns to hold the electric wire between it and the terminal part. Thereby, the connection work of electric wire becomes easy.

However, in the connection device of Document 2, it is necessary to provide a step part for locking the operation part and a state release part for releasing the locking of the operation part, which may complicate the structure of the connection device.

The present invention is directed to a connection device for connecting power supply lines, and its purpose is to simplify the structure of the connection device.

A connection device according to a preferred form of the present invention includes: a housing; a conductive terminal portion fixed to the housing; an elastic member mounted on the housing to press and hold the wires by restoring force In the terminal part; and the operation part, a force is applied to the elastic member to flex from an initial state to a non-connected state to maintain the above-mentioned non-connected state. The operation part includes a first portion on which the restoring force of the elastic member acts, and a second portion generating a reaction force against the restoring force. Let the vector of the restoring force be the restoring force vector, and the straight line connecting the first part and the second part be the reference line. When the above-mentioned elastic member is in the above-mentioned non-knotted state, the position of the above-mentioned operation part is maintained by the above-mentioned restoring force vector approximately overlapping with the above-mentioned reference line, and the above-mentioned restoring force and the above-mentioned reaction force are balanced to maintain the position of the above-mentioned operating part, and the above-mentioned elastic member The state is maintained in the above-mentioned non-connected state. In the state where the electric wire is inserted between the terminal portion and the elastic member in the non-connected state, the position of the operation portion is changed, and the restoring force vector deviates from the reference line, whereby the elastic member is restored by the restoration. Force restores from the above-mentioned non-connection state, and shifts to a connection state in which the above-mentioned electric wire is clamped between the above-mentioned terminal portion.

In this connection device, the structure of the connection device can be simplified.

Preferably, the position of the operation portion is maintained even in a state where the elastic member in the non-wired state is further flexed.

Preferably, the operation portion includes a cam portion that rotates about a rotation shaft. The cam portion is in contact with the elastic member at the first location, and is in contact with the rotating shaft at the second location, which is a bearing. When the elastic member moves toward the non-threaded state, the cam portion rotates, thereby increasing the distance between the first portion and the rotating shaft to cause the elastic member to bend, and the restoring force vector and the The reference lines are substantially overlapped to maintain the rotational position of the operation part, thereby maintaining the state of the elastic member in the above-mentioned non-wired state.

Preferably, when the electric wires are connected, force is directly or indirectly transmitted from the inserted electric wires to the operation part to change the position of the operation part so that the restoring force vector deviates from the reference line.

Preferably, when the electric wires are connected, the inserted electric wires directly contact the operation part to change the position of the operation part.

Preferably, the operation portion includes a wire receiving portion directly in contact with the front end of the wire. The above-mentioned electric wire receiving part has a receiving surface extending from the above-mentioned front end of the above-mentioned electric wire toward the periphery.

Preferably, when the electric wires are connected, the inserted electric wires directly contact the elastic member to deform the elastic member, whereby force is applied to the operation part via the elastic member to change the position of the operation part. Location.

Preferably, the elastic member includes a wire receiving portion directly in contact with the front end of the wire, and a release portion extending from the wire receiving portion toward the operation portion. The above-mentioned electric wire receiving part has a receiving surface extending from the above-mentioned front end of the above-mentioned electric wire toward the periphery. The elastic member deforms when the electric wire presses the receiving surface toward a deeper side in the insertion direction of the electric wire, so that the release part comes into contact with the operation part to apply a force to rotate the cam part.

Preferably, the housing has a guide surface extending linearly. The elastic member extends along the guide surface. The operation part is provided with an advancing and retreating part, and the advancing and retreating part is located between the above-mentioned elastic member and the above-mentioned guide surface. Move linearly in the predetermined forward and backward direction. The distance between the elastic member and the guide surface decreases from one side of the advancing and retreating direction toward the other side. When the above-mentioned elastic member moves toward the above-mentioned untied state, the above-mentioned elastic member is deflected by moving the above-mentioned advancing and retreating part from the above-mentioned one side to the above-mentioned other side in the above-mentioned advancing and retreating direction, and at the position in contact with the above-mentioned first part, the above-mentioned The elastic member is substantially parallel to the guide surface, and the restoring force vector is substantially overlapped with the reference line, thereby maintaining the position of the operating portion in the advancing and retreating direction, and maintaining the state of the elastic member at the non-knotted line state. When the above-mentioned electric wire is connected, the above-mentioned restoring force vector deviates from the above-mentioned reference line by the above-mentioned operation part moving from the other side of the above-mentioned forward and backward direction to the above-mentioned one side, and the above-mentioned elastic member is moved from the above-mentioned non- The wired state transitions to the aforementioned wired state.

Preferably, when the above-mentioned electric wire is connected, by directly or indirectly transmitting force from the inserted electric wire to the above-mentioned operation part, the above-mentioned operation part moves from the above-mentioned other side of the above-mentioned advance and retreat direction to the above-mentioned one side, and the above-mentioned The restoring force vector deviates from the above reference line.

Preferably, the above-mentioned operation part has a substantially disc-shaped or substantially cylindrical rotating part, and the rotating part is provided with a notch in one part of the circumferential direction, and a protrusion is provided in the other part of the circumferential direction. A recessed operation portion mounting portion is provided on the housing, and the inner surface of the operation portion mounting portion is a part of a substantially cylindrical surface. The rotating part is placed on the operation part mounting part, and is in contact with the elastic member at the first part which is a part of the notch part, and is placed on the operation part at the second part which is the protrusion part. The above-mentioned inner surface of the part is in contact. When the elastic member moves toward the non-tie state, the elastic member is deflected by rotating the rotating portion in the first rotating direction, and the restoring force vector is substantially overlapped with the reference line, so that the rotation of the rotating portion is maintained. Rotate position, and the state of above-mentioned elastic member is maintained in above-mentioned non-knotted state. When the above-mentioned electric wire is connected, the above-mentioned restoring force vector deviates from the above-mentioned reference line due to the movement of the above-mentioned rotating part toward the deeper side of the insertion direction of the above-mentioned electric wire, and the above-mentioned rotating part is turned in the direction opposite to the above-mentioned first rotating direction by the above-mentioned restoring force. The second rotation direction of the direction rotates, and the above-mentioned elastic member is shifted from the above-mentioned non-wire state to the above-mentioned state of connection.

Preferably, when the electric wire is connected, by directly or indirectly transmitting force from the inserted electric wire to the above-mentioned operation part, the above-mentioned rotating part moves toward the deeper side of the insertion direction of the above-mentioned electric wire, and the above-mentioned restoring force vector deviates from above baseline.

Preferably, the elastic member includes a wire contact portion that directly contacts the wire in the wire-connected state. At least when the elastic member moves from the non-connected state to the connected state, the moving path of the wire contact part does not overlap with the moving area of the operating part.

Preferably, a part of the operation unit protrudes from the housing.

Preferably, when the elastic member is in the non-wired state, a part of the operation part protrudes from the housing, and when the elastic member is in the wire-connected state, the part of the operation part is located in the housing.

Preferably, a recognizable identification part showing the state of the elastic member is provided.

Preferably, the elastic member is a leaf spring.

The above-mentioned object and other objects, features, aspects, and advantages will be clarified by the detailed description of the present invention performed below with reference to the attached drawings.

Fig. 1 is a perspective view of a connecting device 1 according to a first embodiment of the present invention. FIG. 2 is a longitudinal sectional view of the connection device 1 . In FIG. 2 , the configuration on the deeper side than the cross section is also shown together. In addition, in FIG. 2 , for convenience of illustration, the parallel oblique lines in the cross section of a part of the structure (for example, the elastic member 4 ) are omitted. The same applies to other cross-sectional views. The connection device 1 is a plug-in connection device for power supply line connection. 1 and 2 show the state that the electric wire is not inserted into the connection device 1 . The connection device 1 is used, for example, as a terminal block of a control panel or the like.

In the following description, the up-down direction and the left-right direction in FIG. 2 may also be simply referred to as "up-down direction" and "left-right direction". In addition, the direction perpendicular to the paper surface in FIG. 2 may also be referred to as a "thickness direction". FIG. 2 shows a section of the connecting device 1 closer to the front side than the center in the thickness direction. The up-down direction, left-right direction and thickness direction do not necessarily need to be consistent with the installation direction when the connection device 1 is used. In addition, the vertical direction does not necessarily need to coincide with the direction of gravity. It is substantially the same in other embodiments.

The connection device 1 includes a case 2 , a terminal portion 3 , an elastic member 4 , and an operation portion 5 . The housing 2 accommodates the terminal part 3, the elastic member 4, and the operation part 5 inside. The casing 2 is made of resin, for example. In the example shown in FIG. 1 and FIG. 2 , two insertion holes 21 into which electric wires can be respectively inserted are provided in the casing 2 . In addition, two terminal parts 3 , two elastic members 4 and two operation parts 5 are arranged inside the housing 2 . In other words, the connection device 1 includes two sets of the terminal portion 3 , the elastic member 4 and the operation portion 5 . Furthermore, the connection device 1 may include one set or three or more sets of the terminal portion 3 , the elastic member 4 and the operation portion 5 .

Each set of the terminal part 3 , the elastic member 4 and the operation part 5 is arranged corresponding to the insertion hole 21 . The shape and size of the terminal part 3, the elastic member 4, and the operating part 5 of the two groups are the same as each other, and they are arranged in opposite directions on the left and right. When paying attention to the insertion hole 21 on the right side in FIG. 2 , the terminal part 3 is located on the upper side of the insertion hole 21 and extends in the left-right direction. The elastic member 4 is located on the lower side of the terminal portion 3 . The operation part 5 is located on the upper side of the elastic member 4 . The operation part 5 is disposed on the deeper side in FIG. 2 than the terminal part 3 . The elastic member 4 partially overlaps the terminal portion 3 and the operation portion 5 in the vertical direction.

The terminal part 3 is a conductive substantially plate-shaped member fixed to the housing 2 . The terminal part 3 is made of metal, for example. The terminal part 3 on the right side and the terminal part 3 on the left side in FIG. The two terminal parts 3 and the terminal connection part 32 are, for example, a series of members.

The elastic member 4 is an elastically deformable member mounted on the casing 2 . In the example shown in FIG. 2, the elastic member 4 is a substantially strip-shaped leaf spring. The elastic member 4 is made of metal, for example. The elastic member 4 may be formed of a conductive material, or may be formed of an insulating material such as resin. The elastic member 4 has, for example, a shape bent into a substantially L-shape, a substantially V-shape, or a substantially U-shape at a central portion in the longitudinal direction. In the following description, the bent portion of the elastic member 4 is referred to as a "bent portion 41". In addition, among the two parts extending laterally from the bent part 41 in the elastic member 4, the part located on the lower side is called "fixed part 42", and the part located above the fixed part 42 is called "movable part 43". ".

The casing 2 is provided with a substantially cylindrical elastic member support portion 22 extending in the thickness direction, and the periphery of the elastic member support portion 22 is partially surrounded in the circumferential direction by other parts of the casing 2, whereby A groove is formed. The bent portion 41 of the elastic member 4 is inserted into the groove, whereby the elastic member 4 can be attached to the casing 2 .

When paying attention to the elastic member 4 on the right side in FIG. 2 , the fixing portion 42 of the elastic member 4 is located on the lower side of the elastic member support portion 22 , extends from the bent portion 41 toward the left and is approximately parallel to the left-right direction. The terminal connecting portion 32 extending in the left-right direction contacts the lower side of the fixing portion 42 to limit the movement of the fixing portion 42 toward the lower side. Therefore, the fixing portion 42 is substantially fixed to the casing 2 .

The movable portion 43 of the elastic member 4 is located on the upper side of the elastic member supporting portion 22 and extends obliquely upward from the bent portion 41 to the left. In the example shown in FIG. 2 , the movable portion 43 extends obliquely downward to the left once away from the upper end of the elastic member supporting portion 22 toward the left, and then bends upward near the left end of the elastic member supporting portion 22. Then extend diagonally upward to the left. The front end portion (ie, the left end portion in FIG. 2 ) of the movable portion 43 is in contact with the substantially central portion in the left-right direction of the terminal portion 3 from the lower side. In addition, the movable part 43 is in contact with the operation part 5 from the lower side. As will be described later, when the operating portion 5 is pressed downward, the movable portion 43 elastically deforms and bends downward with the upper end of the elastic member supporting portion 22 as a fulcrum, and moves downward from the terminal portion 3 . In addition, when the downward pressing force applied to the movable part 43 disappears, the movable part 43 returns to the original state by the restoring force (that is, elastic recovery).

In the state shown in FIG. 2 , as described above, the front end portion of the movable portion 43 of the elastic member 4 is in contact with the terminal portion 3 from the lower side. Thereby, the insertion path of the electric wire which will be described later is closed by the movable part 43 of the elastic member 4 inside the insertion hole 21 (that is, the side close to the center part in the left-right direction of the casing 2 ). The state shown in FIG. 1 and FIG. 2 is the state before the electric wire is inserted into the insertion hole 21, that is, the state before the connection device 1 is used. In the following description, this state is also called "initial state".

The elastic member 4 in the initial state (that is, in the closed state of the insertion hole) is slightly bent toward a direction that brings the fixed portion 42 and the movable portion 43 closer to each other. Thereby, the elastic member 4 can be prevented from falling off from the casing 2 . In addition, when the electric wire is clamped by the elastic member 4 and the terminal portion 3, sufficient clamping force (that is, clamping force) can be exhibited even if the electric wire is thin.

The operation unit 5 includes a cam unit 51 , a driving unit 52 , and an electric wire receiving unit 53 . The cam part 51 is a substantially cuboid-shaped part, which is disposed inside the housing 2 (that is, more inside than the outer edge of the housing 2 ). The cam portion 51 is in contact with the movable portion 43 of the elastic member 4 from the upper side. A through hole extending in the thickness direction is provided in the cam portion 51 , and a bearing 54 is provided in the through hole. The bearing 54 is fitted to the substantially cylindrical rotating shaft 24 provided in the casing 2 and extending in the thickness direction. The cam portion 51 is rotatably supported by the housing 2 in a plane substantially perpendicular to the thickness direction around the rotation shaft 24 . The cam portion 51 and the rotating shaft 24 overlap the terminal portion 3 in the thickness direction, and are located on the deep side of the terminal portion 3 in FIG. 2 .

The driving portion 52 is a substantially cylindrical or substantially rod-shaped member that extends substantially linearly obliquely upward from the cam portion 51 . In the example shown in FIG. 1 and FIG. 2 , the driving portion 52 is a substantially rectangular cylindrical member having a hole 521 with a rectangular cross section opened at the upper end. As will be described later, the front end of a tool such as a flathead screwdriver can be inserted into the hole 521 . The upper end of the driving part 52 protrudes obliquely upward from the outer edge of the casing 2 (ie, the outer contour).

The wire receiving portion 53 is a substantially plate-shaped or substantially rod-shaped member extending from the substantially central portion in the longitudinal direction of the driving portion 52 toward the inner side in the left-right direction (that is, the side near the central portion in the left-right direction of the casing 2 ). In the example shown in FIGS. 1 and 2 , the wire receiving portion 53 is bent toward the cam portion 51 in the longitudinal direction of the driving portion 52 as it moves away from the connecting portion connected to the driving portion 52 . In other words, the wire receiving portion 53 extends from the connecting portion to the driving portion 52 toward the cam portion 51 side in a direction perpendicular to the longitudinal direction of the driving portion 52 .

FIG. 3 is an enlarged longitudinal sectional view showing the vicinity of the operation portion 5 located on the right side in FIG. 2 . As shown in FIG. 3 , the shape of the cam portion 51 of the operation portion 5 when viewed from the front (that is, the shape viewed from the front side of FIG. 3 in the thickness direction) has two sets of long sides 511 and short sides 512. Roughly rectangular. The long side 511 faces upward as it goes inward in the left-right direction. The short side 512 faces downward as it goes inward in the left-right direction.

The bearing 54 is located near a corner formed by the lower long side 511 and the outer short side 512 in the left-right direction (that is, the lower right corner in FIG. 3 ). In the cam portion 51 , the distance between the center of the rotating shaft 24 and the outer edge of the cam portion 51 is the smallest in a direction passing through the center of the rotating shaft 24 and perpendicular to the long side 511 on the lower side of the cam portion 51 . In addition, the distance between the center of the rotating shaft 24 and the outer edge of the cam portion 51 increases as the direction of the minimum distance goes clockwise with the rotating shaft 24 as the center.

In the initial state shown in FIG. 3 , the surface corresponding to the long side 511 (ie, the bottom surface) of the lower side of the cam portion 51 is in surface contact with the upper surface of the movable portion 43 of the elastic member 4 . The operation part 5 can rotate counterclockwise in FIG. 3 from the initial state around the rotation shaft 24 . When the operation part 5 is rotated counterclockwise from the initial state, the restoring force of the elastic member 4 acts on the part of the cam part 51 that is in contact with the elastic member 4 . In the following description, the part of the operation part 5 on which the restoring force of the elastic member 4 acts is called "the first part 513". In addition, the part (that is, the bearing 54) which generates the reaction force with respect to this restoring force in the operation part 5 is called "the 2nd part 514."

Next, the flow of connecting the electric wires to the connecting device 1 will be described. Hereinafter, the situation when the electric wire is connected to the insertion hole 21 on the right side in FIG. 2 will be described. Regarding the case of connecting electric wires to the insertion hole 21 on the left side in FIG. 2 , the actions of the operator are substantially the same except that the left and right directions are opposite.

First, the operation part 5 is rotated counterclockwise in FIG. 3 from the initial state shown in FIGS. 1 to 3 with the rotation shaft 24 as the center. When rotating the operating part 5, for example, the operator inserts the front end of a tool such as a flat-blade screwdriver into the hole 521 of the driving part 52 of the operating part 5, and moves the tool to the left. Alternatively, the operator pinches the front end portion of the drive unit 52 with his fingers and moves it leftward.

FIG. 4 is a diagram showing a state in which the operating portion 5 is rotated counterclockwise by about 30° from the initial state (see FIG. 3 ). The state shown in FIG. 4 is the state in the middle of the rotation of the operation part 5, rather than the state of being connected and not being connected as described later. In the state shown in FIG. 4 , the portion of the cam portion 51 located near the left obliquely downward corner of the rotating shaft 24 is the first portion 513 that is in contact with the elastic member 4 . The first portion 513 moves on the cam portion 51 as the cam portion 51 rotates. As shown in FIGS. 3 and 4 , by rotating the operating portion 5 counterclockwise, the shortest distance between the center of the rotating shaft 24 and the first portion 513 increases. In the following description, the shortest distance between the center of the rotating shaft 24 and the first portion 513 is also simply referred to as the distance between the rotating shaft 24 and the first portion 513 . When this distance increases, a downward force is applied to the elastic member 4 from the operation portion 5 , and the elastic member 4 bends and deforms. Specifically, the movable portion 43 of the elastic member 4 is pressed downward, and moves downward away from the terminal portion 3 .

In FIG. 4 , a thick line arrow with an additional symbol 81 shows the vector of the restoring force of the elastic member 4 acting on the first portion 513 of the operation portion 5 (hereinafter also referred to as “restoring force vector”). The starting position of the restoring force vector 81 is the first position 513 of the operation part 5 . In addition, the reference line 82 which is an imaginary straight line connecting the first part 513 and the second part 514 is displayed by a chain line of two dots. As mentioned above, the second part 514 is the bearing 54 of the operation part 5 , specifically the intersection of the bearing 54 and the imaginary straight line connecting the first part 513 and the center of the rotating shaft 24 . The second part 514 is also the same as the first part 513 , and moves on the bearing 54 along with the rotation of the cam part 51 . In FIG. 4 , the reference line 82 is shown as a straight line connecting the first portion 513 and the center of the rotating shaft 24 . The same applies to subsequent figures.

In the state shown in FIG. 4 , the restoring force vector 81 does not overlap the reference line 82 , but faces upward in a state inclined to the left side of the reference line 82 . Therefore, a clockwise rotational moment acts on the cam portion 51 by the restoring force of the elastic member 4 . That is, in the state shown in FIG. 4 , if the operator does not continue to apply force to the operation portion 5 , the elastic member 4 and the operation portion 5 will return to the initial state shown in FIG. 3 .

In actual operation, the operator does not keep the operating part 5 still in the state shown in FIG. 4 , but further rotates to the state shown in FIGS. 5 to 7 (hereinafter also referred to as "non-wired state"). 5 and 6 are a perspective view and a longitudinal sectional view of the connecting device 1 in a non-wired state, respectively. FIG. 7 is an enlarged view showing the vicinity of the operation portion 5 on the right side of FIG. 6 .

In the non-wired state shown in FIGS. 5 to 7 , the upper end of the driving portion 52 of the operating portion 5 is in contact with the housing 2 . Thereby, the movement of the operation part 5 can be restricted so that the operation part 5 cannot further rotate counterclockwise. In the non-wired state, the wire receiving portion 53 of the operation portion 5 extends downward from the vicinity of the inner end portion of the terminal portion 3 in the left-right direction. The lower end portion of the electric wire receiving portion 53 is located on an insertion path of electric wires to be described later. In addition, in the non-wired state, the portion of the cam portion 51 near the corner below the rotating shaft 24 is the first portion 513 in contact with the movable portion 43 of the elastic member 4 . The movable portion 43 of the elastic member 4 extends toward the substantially tangential direction of the cam portion 51 in the first portion 513 .

As shown in FIG. 7 , by further rotating the operation part 5 counterclockwise from the state shown in FIG. 4 , the distance between the rotating shaft 24 and the first portion 513 is further increased, and the deflection of the elastic member 4 is also increased. Specifically, the movable portion 43 of the elastic member 4 is further pressed downward, and is largely separated from the terminal portion 3 downward. Thereby, the insertion path of the electric wire mentioned later is opened. In addition, the angle formed by the restoring force vector 81 and the reference line 82 becomes smaller as the operation part 5 rotates counterclockwise, and the restoring force vector 81 approaches the reference line 82 . Thereby, the clockwise rotational moment acting on the cam portion 51 by the restoring force of the elastic member 4 is reduced.

In the non-wired state shown in FIG. 7 , the restoring force vector 81 substantially overlaps the reference line 82 , and the restoring force of the elastic member 4 and the reaction force to the restoring force generated in the operating portion 5 are in balance with each other. Therefore, neither the clockwise rotation torque nor the counterclockwise rotation torque acts on the cam portion 51 . Therefore, even if the operator's hand leaves the operation part 5 (that is, even in the state where the operator does not apply force to the operation part 5), the position of the circumferential direction of the operation part 5 (ie, the rotation position) is still maintained as shown in FIG. 7 . show the status. In addition, the state of the elastic member 4 is also maintained in the non-threaded state (ie temporarily paused). The non-threaded state shown in FIG. 7 is a temporarily suspended state in which the elastic member 4 is temporarily suspended in a state where the elastic member 4 is flexed. In the connection device 1, the operation part 5 has only one first portion 513 on which the restoring force of the elastic member 4 acts and a second portion 514 generating a reaction force against the restoring force. Thereby, the structure of the connecting device 1 can be simplified.

FIG. 8 is a diagram schematically showing the relationship between the movement distance of the operation part 5 from the initial state and the rotational moment acting on the operation part 5 by the restoring force of the elastic member 4 . The horizontal axis in FIG. 8 shows the movement distance of the operation part 5 from the initial state in the circumferential direction around the rotation axis 24, and the movement distance in the counterclockwise direction in FIG. 7 is assumed to be positive. The vertical axis in FIG. 8 takes the clockwise moment in FIG. 7 as positive to show the above-mentioned rotational moment. In Fig. 8, the point with additional symbol 85 is the non-knotted state where the rotational moment is about 0. Furthermore, the variation of the rotational torque actually acting on the operation portion 5 does not necessarily need to be the same as the variation of the rotational torque shown by a straight line in FIG. 8 .

As shown in FIG. 9 , when the connection device 1 is in the non-wired state, the electric wire 91 is inserted into the insertion hole 21 . FIG. 9 shows a state where the electric wire 91 is inserted into the insertion hole 21 on the right. The electric wire 91 is inserted from the insertion hole 21 into the casing 2 along a predetermined insertion direction, and is located between the terminal portion 3 and the elastic member 4 in a non-connected state. The insertion direction of the electric wire 91 into the case 2 is an oblique direction inclined with respect to the up-down direction and the left-right direction. Thereby, the electric wire 91 can be suppressed from protruding to the up-down direction from the connection apparatus 1, and the electric wire 91 can be easily inserted into the insertion hole 21, seeing the insertion hole 21. FIG. The angle formed by the insertion direction and the up-down direction can be appropriately optimized according to the place where the connection device 1 is expected to be used, the position of the operator, and the line of sight.

The electric wire 91 can be, for example, a single wire, or a relatively thick twisted wire. In addition, the electric wire 91 may be the electric wire which provided the rod-shaped crimp terminal etc. at the front end part of a thin twisted wire. The rod-shaped crimping terminal can be a crimping terminal with insulating sheath provided with an insulating sleeve or the like at the root of the rod-shaped conductive part, or a bare crimping terminal without an insulating sleeve or the like. Preferably, the diameter of the front end of the electric wire 91 is, for example, 0.42 mm or more. The diameter of the front end of the electric wire 91 is actually 2.3 mm or less. The diameter of the front end of the electric wire 91 can also be variously changed according to the current capacity of the connection device 1 to which the power supply wire 91 is connected. In addition, the diameters of parts other than the front end of the electric wire 91 can also be changed in various ways.

The front end of the electric wire 91 is tied in the casing 2 and directly contacts the electric wire receiving portion 53 of the operating portion 5 . In the example shown in FIG. 9 , the right side of the wire receiving portion 53 is a receiving surface 531 that directly contacts the front end of the wire 91 and extends from the front end toward the surroundings. The receiving surface 531 is located on the deeper side than the elastic member 4 in the unconnected state in the insertion direction of the electric wire 91 , and extends in a direction substantially perpendicular to the insertion direction. Furthermore, the receiving surface 531 does not need to be a surface perpendicular to the insertion direction.

The electric wire 91 moves toward the depth side in the insertion direction in a state where the tip is brought into contact with the receiving surface 531 of the electric wire receiving portion 53 . Thereby, force is directly transmitted from the electric wire 91 to the operation part 5 . Then, the operation unit 5 is slightly rotated clockwise in FIG. 9 around the rotation shaft 24 . In other words, the position of the operation portion 5 (that is, the rotational position) is changed in the circumferential direction around the rotating shaft 24 as the center. The rotation direction of the cam portion 51 on the first portion 513 is from the front side toward the deep side in the insertion direction of the electric wire 91 (that is, toward the substantially left side in FIG. 9 ).

Thereby, as shown in FIG. 10, the restoring force vector 81 deviates from the reference line 82 toward the left in FIG. point 86). As a result, the operation part 5 is further rotated clockwise, and the elastic member 4 returns from the non-threaded state.

Then, as shown in FIGS. 11 to 13 , the elastic member 4 moves toward the state of connecting the electric wire 91 between the terminal portion 3 (that is, clamping the electric wire 91 together with the terminal portion 3 ), so that the electric wire 91 is clamped. 91 is electrically and mechanically connected to the terminal portion 3 . In other words, after the electric wire 91 is inserted into the connection device 1, the wire is automatically connected (that is, the operator does not need to operate the operation portion 5 using tools or fingers other than the electric wire 91). The operator can confirm the transition to the wire-connected state, for example, from the vibration or sound generated when the electric wire 91 is pressed against the terminal portion 3 by the movable portion 43 of the elastic member 4 . This vibration or sound is generated, for example, when one of the elastic member 4 , the electric wire 91 , the terminal portion 3 , the operation portion 5 , and the housing 2 collides with the other. In the connection device 1 , various structures may be adopted to promote the generation of the vibration, sound, or the like, or to amplify the vibration, sound, or the like.

As shown in FIG. 13 , the front end of the movable portion 43 of the elastic member 4 is connected to the electric wire contact portion 45 which directly contacts the electric wire 91 in the state of being connected. As shown by the chain line of two dots in Fig. 13, the moving path of the electric wire contact portion 45 when the elastic member 4 moves from the non-connected state to the connected state is in the same position as the movement area of the operation part 5 when it moves from the non-connected state to the connected state. There is no overlap in the thickness direction. In addition, in the connecting device 1, the movement path of the electric wire contact portion 45 does not overlap with the movement area of the operation portion 5 in the thickness direction even when moving between the initial state and the non-connection state. This prevents the electric wire contact portion 45 from biting into the cam portion 51 and the like of the operation portion 5 to hinder the rotation of the cam portion 51 .

As shown in FIG. 12 , in the connection device 1 in the wired state, the drive portion 52 of the operation portion 5 protrudes from the housing 2 substantially vertically upward. In addition, as shown in FIG. 6 , in the connection device 1 in the non-wired state, the driving portion 52 of the operation portion 5 is inclined more inwardly in the left-right direction than in the state shown in FIG. 12 . On the other hand, as shown in FIG. 2 , in the connection device 1 in the initial state, the driving portion 52 of the operation portion 5 is inclined further outward in the left-right direction than in the state shown in FIG. 12 . Therefore, the operator can judge the state of the elastic member 4 of the connecting device 1 as the initial state, the non-connected state, and the connected state by identifying the direction in which the driving part 52 of the operating part 5 extends (that is, the direction of the driving part 52). Which of the. That is, the drive unit 52 of the operation unit 5 is a recognizable identification unit that displays the state of the elastic member 4 .

When the electric wire 91 is taken out from the connecting device 1, for example, the operator inserts the front end of a tool such as a flat-head screwdriver into the hole 521 of the driving part 52, and rotates the operating part 5 counterclockwise in FIG. 12 . When the operation part 5 is rotated to the unconnected state shown in FIG. 6 , as described above, the restoring force vector 81 is substantially overlapped with the reference line 82 , and the elastic member 4 is maintained in the unconnected state away from the electric wire 91 downward. Thereby, the clamping of the electric wire 91 between the elastic member 4 and the terminal portion 3 is released. An operator can easily take out the electric wire 91 from the connection device 1 by pulling out the electric wire 91 from the insertion hole 21 .

As described above, the connection device 1 for connecting the electric wire 91 includes the housing 2 , the conductive terminal portion 3 , the elastic member 4 and the operation portion 5 . The terminal portion 3 is fixed to the housing 2 . The elastic member 4 is mounted on the housing 2, and presses and holds the electric wire 91 to the terminal portion 3 by a restoring force. The operation part 5 applies a force to the elastic member 4 so that it bends from the initial state to the untied state and maintains the untied state. The operation portion 5 includes a first portion 513 on which the restoring force of the elastic member 4 acts, and a second portion 514 generating a reaction force against the restoring force. The vector of the restoring force is used as the restoring force vector 81 , and the straight line connecting the first part 513 and the second part 514 is used as the reference line 82 .

When the elastic member 4 is in the non-knotted state, the restoring force vector 81 and the reference line 82 roughly overlap to balance the restoring force and the reaction force to maintain the position of the operating part 5 and the state of the elastic member 4 remain in the unconnected state. In addition, when the electric wire 91 is inserted between the terminal portion 3 and the elastic member 4 in the non-connected state, the position of the operation portion 5 is changed, and the restoring force vector 81 deviates from the reference line 82, whereby the elastic member 4 is Restoration force restores from the non-connection state, and shifts to the connection state in which the electric wire 91 is sandwiched between the terminal portion 3 .

By making the connection device 1 the above-mentioned structure, since there is no need to provide other structures such as a step part for locking the operation part 5 in the non-wired state, and a state release part for releasing the lock of the operation part 5, The construction of the connecting device 1 can thus be simplified. In addition, unlike the case where the operation portion 5 is locked to the step portion of the housing 2, it is possible to prevent locking failure due to wear of the step portion, etc., and to achieve a longer life of the connection device 1 .

Furthermore, in the connection device 1, as described above, the restoring force vector 81 only needs to substantially overlap the reference line 82 in the non-connected state, and does not need to be strictly consistent (the same applies to the connection devices 1a to 1d). For example, even when the restoring force vector 81 shown in FIG. 7 is slightly inclined to the left relative to the reference line 82 (that is, when the rotational moment acting on the cam portion 51 is slightly toward the point 86 than the point 85 shown in FIG. 8 In the state of moving), as long as the non-knotted state can be maintained by the frictional force generated between the cam portion 51 and the elastic member 4 or the like. Even in this case, as described above, the structure of the connecting device 1 can be simplified.

As mentioned above, it is preferable that the operation part 5 is provided with the cam part 51 which rotates about the rotation shaft 24 as a center. The cam portion 51 is in contact with the elastic member 4 at a first location 513 , and is in contact with the rotating shaft 24 at a second location 514 , that is, a bearing 54 . And, when the elastic member 4 moves toward the untied state, the distance between the first portion 513 and the rotation shaft 24 increases due to the rotation of the cam portion 51, so that the elastic member 4 is deflected, and by the restoring force vector 81 and The reference lines 82 are substantially overlapped to maintain the rotational position of the operating portion 5 and maintain the state of the elastic member 4 in a non-wired state. Thereby, the transition of the elastic member 4 to the non-knotted state and the maintenance of the non-knotted state can be realized with a simple structure.

As described above, it is preferable that when the electric wires 91 are connected, the inserted electric wires 91 directly contact the operation part 5 to change the position of the operation part 5 . Thereby, since the force of pushing the electric wire 91 is easily transmitted to the operation part 5, the automatic connection of the connecting electric wire 91 can be easily realized only by an operation such as insertion of the electric wire 91 . In addition, since there is no need to provide a portion in contact with the electric wire 91 on the elastic member 4, the shape of the elastic member 4 can be simplified.

As mentioned above, it is preferable that the operation part 5 is provided with the electric wire receiving part 53 which directly contacts the front end of the electric wire 91 . In addition, preferably, the wire receiving portion 53 has a receiving surface 531 extending from the front end of the wire 91 to the surrounding. Thereby, the force of pushing the electric wire 91 can be efficiently transmitted to the operation part 5 .

As mentioned above, it is preferred that the elastic member 4 is provided with a wire contact portion 45 that directly contacts the wire 91 in the wired state, and at least when the elastic member 4 moves from the non-wired state to the wired state, the moving path of the wire contact portion 45 Do not overlap with the moving area of the operation unit 5 . Thereby, the electric wire contact portion 45 of the elastic member 4 can be prevented from contacting the operation portion 5 and obstructing the movement of the operation portion 5 .

As mentioned above, preferably, a part of the operation part 5 (for example, the driving part 52 ) protrudes from the casing 2 . Thereby, an operator can operate the operation part 5 easily. In addition, the operator may operate the operation unit 5 with fingers without using a tool such as a flathead screwdriver.

As mentioned above, in the connection device 1, it is preferable to provide a recognizable identification part (in the above example, the drive part 52 of the operation part 5) which displays the state of the elastic member 4. Thereby, the state of the elastic member 4 can be confirmed easily and quickly.

As mentioned above, preferably, the elastic member 4 is a leaf spring. Thereby, the structure of the connecting device 1 can be further simplified.

As mentioned above, in the connecting device 1, before the electric wire 91 is inserted, the restoring force vector 81 substantially overlaps the reference line 82 in the non-connected state (that is, the state in which the rotational moment acting on the cam portion 51 is about 0) Next, the shape of the elastic member 4 and the position of the operation part 5 are maintained, but, for example, as shown in FIG. .

In the state shown in FIG. 14 , the restoring force vector 81 is slightly inclined to the right than the reference line 82 . Therefore, the rotational moment acting on the cam portion 51 becomes counterclockwise (i.e., negative). As shown in FIG. The relationship shown by the point 87 on the lower right than the point 86 of the knot state and the point 85 of the non-tie state. In other words, the elastic member 4 acts on the cam portion 51 to rotate the operation portion 5 counterclockwise, but does not act the force to rotate the operation portion 5 clockwise to return to the threaded state and the initial state. Furthermore, in the example shown in FIG. 14 , the upper end of the driving portion 52 of the operating portion 5 is in contact with the housing 2 to restrict the further rotation of the operating portion 5 in the counterclockwise direction.

In the connection device 1 shown in FIG. 14, as described above, even in the state where the elastic member 4 in the non-wired state is further flexed, the position of the operation portion 5 can be maintained. In addition, the direction of the rotational moment acting on the cam portion 51 by the restoring force of the elastic member 4 is opposite to the direction of returning the operation portion 5 to the threaded state and the initial state. Therefore, the shape of the elastic member 4 in a state away from the terminal portion 3 can be more stably maintained.

Next, a connection device 1a according to a second embodiment of the present invention will be described. Fig. 16 is an enlarged longitudinal sectional view showing the vicinity of the operation portion 5a of the connection device 1a. In FIG. 16 the connecting device 1 a is shown in an initial state.

The connection device 1a includes a housing 2a, a terminal portion 3a, an elastic member 4a, and an operation portion 5a. In the connection device 1a, the shape of the housing 2a, the terminal part 3a, the elastic member 4a and the operation part 5a, and the action of the elastic member 4a and the operation part 5a are different from the connection device 1 shown in Figure 1, but the material and function Wait for the same. In addition, like the connection device 1, the connection device 1a may include two or more sets of the terminal part 3a, the elastic member 4a, and the operation part 5a in the housing 2a.

The terminal part 3a is a conductive substantially plate-shaped member fixed to the housing 2a. The terminal part 3a is made of metal, for example. The elastic member 4a is an elastically deformable member mounted on the casing 2a. The elastic member 4a is, for example, a substantially strip-shaped leaf spring. The elastic member 4a may be formed of a conductive material such as metal, or may be formed of an insulating material such as resin. The elastic member 4 a has a shape bent into a substantially L-shape, a substantially V-shape, or a substantially U-shape at a central portion in the longitudinal direction.

The elastic member 4a is the same as the above-mentioned elastic member 4, and is equipped with the bending part 41a, the fixed part 42a, and the movable part 43a. The front end portion (that is, the left end portion in FIG. 16 ) of the movable portion 43a is in contact with the substantially central portion in the left-right direction of the terminal portion 3a from the lower side. Thereby, the insertion path of the electric wire mentioned later is closed inside the insertion hole 21a. In addition, the movable part 43a is in contact with the operation part 5a from the lower side. As will be described later, the movable portion 43a is elastically deformed and flexed downward when the operation portion 5a is pressed downward, and further moves downward away from the terminal portion 3a. In addition, when the pressing force exerted downward on the movable portion 43a disappears, the movable portion 43a returns to the original state (that is, elastically returns) by a restoring force.

The operation part 5a is equipped with the cam part 51a, the drive part 52a, and the identification part 55a. When viewed from the front, the cam portion 51a is a substantially triangular plate-shaped portion with an apex at the lower end, and is disposed inside the housing 2a (that is, more inside than the outer edge of the housing 2a). The cam portion 51a is in contact with the movable portion 43a of the elastic member 4a from the upper side. A through hole extending in the thickness direction is provided on the upper portion of the cam portion 51a, and a bearing 54a is provided in the through hole. The bearing 54a is fitted to the substantially columnar rotating shaft 24a provided in the casing 2a and extending in the thickness direction. The cam part 51a is rotatably supported by the case 2a in the plane substantially perpendicular to the thickness direction centering on the rotating shaft 24a. In the cam portion 51a, the distance between the center of the rotating shaft 24a and the outer edge of the cam portion 51a becomes maximum on a straight line extending from the center of the rotating shaft 24a toward the above-mentioned vertex of the lower end portion of the cam portion 51a. The lower portion of the cam portion 51a overlaps the terminal portion 3a in the thickness direction, and is located on the deep side of the terminal portion 3a in FIG. 16 .

The driving portion 52a is a portion extending from the right side of the cam portion 51a toward the right, and is a substantially rectangular plate-shaped portion when viewed from the front. In the initial state shown in FIG. 16, the right end of the drive portion 52a (that is, the end on the side away from the cam portion 51a) is located inside the through hole 231a provided on the upper portion of the housing 2a. The upper surface of the right end portion of the driving portion 52a is located at substantially the same position in the vertical direction as the upper surface around the through hole 231a of the housing 2a in the initial state.

A concave portion 521a is provided on the upper portion of the right end portion of the driving portion 52a and at a position overlapping with the through hole 231a in the vertical direction. In the initial state, the concave portion 521a is located inside the through hole 231a. A convex portion 522a protruding downward is provided at the lower portion of the right end portion of the driving portion 52a. The convex part 522a protrudes toward the insertion path of the electric wire mentioned later.

The identification portion 55a is a substantially rectangular columnar portion extending obliquely upward to the left from the upper portion of the left portion of the cam portion 51a. The identification part 55a is located below the through hole 232a provided on the upper part of the casing 2a. The through hole 232a is away from the through hole 231a toward the left. In the initial state, the identification part 55a as a whole is lower than the through hole 232a and located inside the casing 2 .

Next, the flow of connecting the electric wires to the connection device 1a will be described. First, in the initial state shown in FIG. 16 , the operator inserts the front end of a tool 92 such as a flat-shaped screwdriver from the upper side into the recess 521a of the driving portion 52a of the operating portion 5a, and presses the tool 92 downward. Thereby, the operation part 5a rotates clockwise in FIG. 16 centering on the rotation shaft 24a.

If the operating portion 5a rotates, as shown in FIG. 17, the distance between the contact portion of the cam portion 51a and the elastic member 4a and the center of the rotating shaft 24a increases, and the movable portion 43a of the elastic member 4a is moved by the cam portion 51a. It is pressed downward and away from the terminal portion 3a.

As shown in FIG. 17 , in the operating portion 5a during rotation, the restoring force vector 81a acting on the elastic member 4a of the first portion 513a deviates to the right side from the imaginary straight line connecting the first portion 513a and the second portion 514a, that is, the reference line. 82a. Therefore, if a counterclockwise rotational moment acts on the cam portion 51a and the operator does not continue to press the operating portion 5a downward, the elastic member 4a and the operating portion 5a return to the initial state shown in FIG. 16 . Moreover, the first portion 513a is a portion of the operating portion 5a where the restoring force of the elastic member 4a acts, specifically, a portion of the lower end of the cam portion 51a that is in contact with the elastic member 4a. In addition, the second portion 514a is a portion of the operating portion 5a that generates a reaction force against the restoring force, specifically, an intersection point of the bearing 54a with an imaginary straight line connecting the first portion 513a and the center of the rotating shaft 24a.

The operator resists the restoring force of the elastic member 4a and pushes the operation part 5a into the non-threaded state shown in FIG. 18 . In the non-wired state, the restoring force vector 81a acting on the elastic member 4a of the first portion 513a substantially overlaps with the reference line 82a connecting the first portion 513a and the second portion 514a. Thereby, the restoring force of the elastic member 4a and the reaction force to the restoring force generated in the operation portion 5a are balanced with each other.

Therefore, neither the counterclockwise rotational moment nor the clockwise rotational moment acts on the cam portion 51a. Therefore, even if the operator pulls the tool 92 out of the through hole 231a of the housing 2a (that is, even in the state where the operator does not apply force to the operation portion 5a), the circumferential position of the operation portion 5a (ie, the rotational position) ) is also stably maintained in the non-connected state shown in FIG. 18 . In addition, the state of the elastic member 4a can also be stably maintained (ie temporarily suspended) in the non-knotted state. The non-knotted state shown in FIG. 18 is a temporarily suspended state in which the elastic member 4a is temporarily suspended in a state where the elastic member 4a is flexed. At this time, the convex part 522a of the operation part 5a is located above the insertion path of the electric wire mentioned later. In the connecting device 1a, the operation part 5a has only one first portion 513a on which the restoring force of the elastic member 4a acts and a second portion 514a generating a reaction force against the restoring force. Thereby, the structure of the connection device 1a can be simplified.

In this non-wired state, the upper end of the identification portion 55a protrudes upward from the through hole 232a of the casing 2a. In addition, since a part of the operation part 5a (in the example shown in FIG. 18, the part on the left side of the convex part 522a) is in contact with the stopper 28a which is the protrusion provided on the housing 2a, the operation part 5a does not go forward. Rotation in the clockwise direction restricts the movement of the operation part 5a. In addition, the operator can easily determine that the connection device 1a is in the non-connection state by recognizing that the identification portion 55a protrudes from the casing 2a.

Moreover, in the connection device 1a, it is also possible to rotate the operation part 5a clockwise from the rotation position shown in Fig. 18 in the same manner as the connection device 1 shown in Fig. 14, and then the elastic member 4a is further flexed. In this state, the position of the operation part 5a is maintained. This structure can be achieved by, for example, setting the lower end of the cam portion 51a in FIG. 18 as a substantially horizontal plane extending rightward from the first portion 513a in the figure, and moving the upper position of the stopper 28a downward. In this case, the restoring force vector 81a is slightly inclined to the left with respect to the reference line 82a, and the rotational moment acting on the cam portion 51a becomes clockwise. That is, a force intended to rotate the operating portion 5 a clockwise acts on the cam portion 51 a from the elastic member 4 a. However, the clockwise rotation of the operation part 5a is restricted by the contact between the operation part 5a and the stopper 28a. In addition, the force in the direction in which the operation part 5a rotates counterclockwise and returns to an initial state does not act on the cam part 51a from the elastic member 4a. Therefore, the position (that is, the rotational position) of the operation portion 5a can be stably maintained, and the shape of the elastic member 4a in a state away from the terminal portion 3a can be stably maintained.

If the connection device 1a is in the non-connected state, then as shown in Figure 19, insert the electric wire 91 from the insertion hole 21a of the housing 2a into the housing 2a along the predetermined insertion direction, and the elastic member located at the terminal part 3a and the non-connected state between 4a. The insertion direction of the electric wire 91 to the casing 2a is an oblique direction inclined with respect to the up-down direction and the left-right direction. The type and diameter of the electric wire 91 are the same as those described above. In the example shown in FIG. 19, the front end of the electric wire 91 is in contact with a part of the casing 2a in such a manner that the electric wire 91 is not further inserted. In addition, the convex part 522a of the drive part 52a of the operation part 5a is in contact with the electric wire 91 from the upper side. Moreover, in the example shown in FIG. 19, the convex part 522a of the operation part 5a contacts the covering part of the electric wire 91, However, It may contact the conductive part of the electric wire 91 or a rod-shaped crimping terminal. In addition, the convex portion 522 a may be located slightly above the electric wire 91 without being in contact with the electric wire 91 .

Next, as shown in FIG. 20 , the operator moves the electric wire 91 slightly upward from the position shown by the two-dot chain line. For example, the operator puts the front end of the electric wire 91 against the case 2 a and twists the electric wire 91 upward using the front end as a fulcrum. Thereby, the force is directly transmitted from the electric wire 91 to the convex part 522a of the operation part 5a. Then, the operation part 5a is slightly rotated counterclockwise in FIG. 20 around the rotation shaft 24a. In other words, the position (that is, the rotational position) of the operation portion 5a is changed in the circumferential direction around the rotational shaft 24a.

Thus, the restoring force vector 81a deviates from the reference line 82a to the right in FIG. 20 , and a counterclockwise rotational moment acts on the cam portion 51a due to the restoring force of the elastic member 4a. As a result, the operation part 5a is further rotated counterclockwise, and the elastic member 4a returns from the non-threaded state.

Then, as shown in FIG. 21 , the elastic member 4 a moves to a connection state in which the electric wire 91 is held between the terminal portion 3 a, thereby electrically and mechanically connecting the electric wire 91 and the terminal portion 3 a. In other words, after the electric wire 91 is inserted into the connection device 1a, the wire is automatically connected (that is, the operator does not need to operate the operation portion 5a using a tool or fingers other than the electric wire 91). The operator can also confirm the transition to the wire-connected state, for example, from the vibration or sound generated when the electric wire 91 is pressed against the terminal portion 3a by the movable portion 43a of the elastic member 4a. This vibration or sound is generated, for example, when one of the elastic member 4a, the electric wire 91, the terminal portion 3a, the operation portion 5a, and the housing 2a collides with the other. In the connecting device 1a, various structures may be employed to promote the generation of the vibration, sound, or the like, or to amplify the vibration, sound, or the like.

In the connection device 1a in the wired state, the identification part 55a of the operation part 5a is different from the non-wired state and is accommodated in the casing 2a, and does not protrude from the through hole 232a of the casing 2a. Therefore, the operator can easily confirm that the connection device 1a has shifted from the non-connection state to the connection state by recognizing that the identification part 55a is accommodated in the casing 2a.

When taking out the electric wire 91 from the connection device 1a, for example, the operator inserts the front end of a tool such as a flathead screwdriver into the through hole 231a of the housing 2a, and presses the drive part 52a of the operation part 5a downward. Thereby, the operation part 5a rotates clockwise in FIG. 21 . If the operating part 5a is rotated to the non-wired state shown in FIG. 19, as described above, the restoring force vector 81a (refer to FIG. 18) is substantially overlapped with the reference line 82a, and the elastic member 4a is maintained downward away from the electric wire 91. Wired state. Thereby, the clamping of the electric wire 91 by the elastic member 4a and the terminal part 3a is released. An operator can easily take out the electric wire 91 from the connection device 1a by pulling out the electric wire 91 from the insertion hole 21a.

As described above, the connection device 1a for connecting the electric wire 91 includes the housing 2a, the conductive terminal portion 3a, the elastic member 4a, and the operation portion 5a. The terminal portion 3a is fixed to the housing 2a. The elastic member 4a is mounted on the housing 2a, and presses and clamps the electric wire 91 to the terminal part 3a by a restoring force. The operation part 5a applies a force to the elastic member 4a so that it bends from the initial state to the untwisted state, and maintains the untwisted state. The operation part 5a has the 1st part 513a to which the restoring force of the elastic member 4a acts, and the 2nd part 514a which generates the reaction force with respect to this restoring force. The vector of the restoring force is used as the restoring force vector 81a, and the straight line connecting the first part 513a and the second part 514a is used as the reference line 82a.

When the elastic member 4a is in the non-knotted state, the restoring force and the reaction force are balanced by the restoring force vector 81a approximately overlapping the reference line 82a, so as to maintain the position of the operating part 5a, thereby changing the state of the elastic member 4a remain in the unconnected state. In addition, in the state where the electric wire 91 is inserted between the terminal portion 3a and the elastic member 4a in the non-connected state, the position of the operation portion 5a is changed, and the restoring force vector 81a deviates from the reference line 82a. Restoration force restores from the non-connection state, and shifts to the connection state in which the electric wire 91 is sandwiched between the terminal portion 3a.

By making the connecting device 1a the above-mentioned structure, it is not necessary to provide other structures such as a step part for locking the operation part 5a in the non-wired state, and a state release part for releasing the lock of the operation part 5a. The structure of the connecting device 1a can be simplified. In addition, unlike the case where the operation portion 5a is locked to the step portion of the housing 2a, etc., it is possible to prevent locking failure due to wear of the step portion, etc., and to achieve a longer life of the connection device 1a.

As described above, in the connection device 1a, it is preferable that the position of the operation portion 5a is maintained even in the state where the elastic member 4a in the non-wired state is further flexed. At this time, the direction of the rotational moment acting on the cam portion 51a by the restoring force of the elastic member 4a is opposite to the direction of returning the operation portion 5a to the threaded state and the initial state. Thereby, the shape of the elastic member 4a in the state separated from the terminal part 3a can be maintained more stably.

In the connection device 1a, it is preferable that the operation part 5a is equipped with the cam part 51a which rotates centering on the rotation shaft 24a. The cam portion 51a is in contact with the elastic member 4a at a first portion 513a, and is in contact with the rotating shaft 24a at a second portion 514a, that is, a bearing 54a. And, when the elastic member 4a moves toward the non-threaded state, the distance between the first portion 513a and the rotating shaft 24a increases due to the rotation of the cam portion 51a, thereby causing the elastic member 4a to bend, and the restoring force vector 81a and the reference The wires 82a are substantially overlapped to maintain the rotational position of the operation part 5a, thereby maintaining the state of the elastic member 4a in a non-wired state. Thereby, the transition of the elastic member 4a to the non-knotted state and the maintenance of the non-knotted state can be realized with a simple structure.

As described above, it is preferable that when the electric wires 91 are wired, the inserted electric wires 91 directly contact the operation part 5a to change the position of the operation part 5a. Thereby, since the force of pushing the electric wire 91 is easily transmitted to the operation part 5a, automatic wiring of the electric wire 91 can be easily realized. In addition, the shape of the elastic member 4a can be simplified.

In the connection device 1a, preferably, an identifiable identification part 55a that displays the state of the elastic member 4a is provided. In the above example, by identifying whether the identification portion 55a protrudes from the casing 2a, it can be determined whether the elastic member 4a is in the non-wired state. Thereby, the state of the elastic member 4a can be confirmed easily and quickly.

In the connecting device 1a, preferably, the elastic member 4a is a leaf spring. Thereby, the structure of the connecting device 1a can be further simplified.

In the connection device 1a, the transition from the non-wired state (see FIG. 19) to the wired state (see FIG. 21) does not necessarily need to be performed by pushing the drive portion 52a of the operation portion 5a upwards by the electric wire 91. For example, as shown in FIG. 22 , by using the operator's fingertip 93 to slightly press the identification portion 55a protruding from the through hole 232a of the housing 2a toward the inside of the housing 2a, the restoring force vector 81a will Deviate to the right from reference line 82a. As a result, the cam portion 51a is rotated counterclockwise by the restoring force of the elastic member 4a, and the connecting device 1a moves toward the threaded state shown in FIG. 21 .

As mentioned above, in the connection device 1a, it is preferable that a part of the operation part 5a (identification part 55a in the above example) protrudes from the housing 2a. Thereby, an operator can operate the operation part 5a easily.

In addition, in the connection device 1a, preferably, when the elastic member 4a is in the non-wired state (refer to FIG. 18), a part of the operation part 5a (ie, the identification part 55a) protrudes from the housing 2a, and the elastic member 4a is in the connected state. At this time (refer to FIG. 21), the part of the operation part 5a is located in the casing 2a. Thereby, as described above, it is possible to easily and quickly confirm whether the elastic member 4a is in the untied state. In addition, in the non-wired state, the operation portion 5a can be easily operated without using a tool such as a flathead screwdriver. In addition, it is possible to prevent erroneous operation of the operation portion 5a in the wired state. Furthermore, in the example shown in FIG. 22 , instead of the operator's fingertips 93 , the identification part 55 a of the operation part 5 a can be pushed into the casing 2 a by using, for example, the front end of a stick-shaped tool.

Next, a connection device 1b according to a third embodiment of the present invention will be described. Fig. 23 is an enlarged longitudinal sectional view showing the vicinity of the operation portion 5b of the connection device 1b. Fig. 24 is a plan view showing the operation portion 5b and the elastic member 4b. In Fig. 23 and Fig. 24, the connecting device 1b in the initial state is shown.

The connection device 1b includes a housing 2b, a terminal portion 3b, an elastic member 4b, and an operation portion 5b. In the connection device 1b, the shape of the housing 2b, the terminal part 3b, the elastic member 4b and the operation part 5b, and the action of the elastic member 4b and the operation part 5b are different from the connection device 1 shown in Figure 1, but the material and function Wait for the same. In addition, like the connection device 1, the connection device 1b may include two or more sets of terminal parts 3b, elastic members 4b, and operation parts 5b in the casing 2b.

The terminal part 3b is a conductive substantially plate-shaped member fixed to the housing 2b. The terminal part 3b is made of metal, for example. The elastic member 4b is an elastically deformable member mounted on the casing 2b. The elastic member 4b is, for example, a substantially strip-shaped leaf spring. The elastic member 4b may be formed of a conductive material such as metal, or may be formed of an insulating material such as resin. The elastic member 4b has a shape bent into a substantially V-shape or a substantially U-shape (that is, a substantially Z-shape) at the lower end and the upper end.

The elastic member 4b is the same as the above-mentioned elastic member 4, and is equipped with the bending part 41b, the fixed part 42b, and the movable part 43b. The movable part 43b is provided with a cutting and lifting part 431b, and the cutting and lifting part 431b is partially cut and separated from the surrounding part and then bent upward. The elastic member 4b further includes an electric wire receiving portion 44b and a releasing portion 46b. The wire receiving portion 44b extends upward from the upper end portion of the movable portion 43b. The release part 46b extends from the upper end of the wire receiving part 44b toward the left side in FIGS. 23 and 24 (that is, toward the direction of the operation part 5b). The width of the elastic member 4b in the vertical direction in FIG. 24 is substantially constant except for the release portion 46b, and the width of the release portion 46b is larger than that of the wire receiving portion 44b. The release portion 46b extends from the upper end portion (that is, the right end portion in FIG. 24 ) of the wire receiving portion 44b toward the left and upward in FIG. 24 . In addition, in FIG. 24, in order to facilitate understanding of a drawing, the release part 46b is drawn with the one-dot chain line. In addition, in FIG. 24, the terminal part 3b is drawn with the chain line of two dots.

The upper end (ie, the right end in FIG. 23 and FIG. 24 ) of the cutting and lifting portion 431b in the movable portion 43b is in contact with the substantially central portion in the left-right direction of the terminal portion 3b from the lower side. Thereby, the insertion path of the electric wire mentioned later is closed inside the insertion hole 21b provided in the left side of the case 2b. In addition, the movable part 43b is in contact with the operation part 5b from the lower side at the part where the cutting and lifting part 431b is not provided (in FIG. 23, the part to the left of the cutting and raising part 431b). As will be described later, the movable portion 43b is elastically deformed and bent downward when pressed downward by the operation portion 5b, and further moves away from the terminal portion 3b downward. In addition, when the pressing force exerted downward on the movable portion 43b disappears, the movable portion 43b returns to the original state by the restoring force (that is, elastic recovery).

The wire receiving portion 44b is located on the right side of the terminal portion 3b and the operating portion 5b in FIG. 23 , and extends obliquely upward from the upper end of the movable portion 43b to the right. The wire receiving portion 44b extends from the lower side of the terminal portion 3b to the upper side of the terminal portion 3, and is located on the insertion path of the wire inserted along the lower surface of the terminal portion 3b. The wire receiving portion 44b has a receiving surface 441b extending around with respect to the insertion direction of the wire.

The release part 46b extends from the upper end of the wire receiving part 44b toward the left side in FIG. 23 (that is, the direction close to the operation part 5b), and partially faces the operation part 5b and the terminal part 3b in the vertical direction. The front end of the release portion 46b (that is, the end near the operating portion 5b) is bent downward (ie, toward the operating portion 5b) above the operating portion 5b.

The operation part 5b is equipped with the cam part 51b. When viewed from the front, the cam portion 51b is a substantially fan-shaped plate-shaped member, and is disposed inside the casing 2b (that is, more inside than the outer edge of the casing 2b). The center of the sector is located at the upper end on the right side of the cam portion 51b in FIG. 23 , and a through hole extending in the thickness direction is provided near the center. A bearing 54b is provided in the through hole. The bearing 54b is fitted to the substantially columnar rotating shaft 24b provided in the casing 2b and extending in the thickness direction. The cam portion 51b is rotatably supported by the case 2b in a plane substantially perpendicular to the thickness direction around the rotation shaft 24b. In the example shown in FIG. 23, the central angle of the substantially fan-shaped cam portion 51b is approximately 90° when viewed from the front.

Near the lower end portion of the cam portion 51b in FIG. 23, a substantially semicylindrical convex portion 515b protruding downward (that is, radially outward of the cam portion 51b) is provided. The cam part 51b is in contact with the movable part 43b of the elastic member 4b from the upper side with the convex part 515b. In the cam portion 51b, on a straight line extending from the center of the rotating shaft 24b toward the outer peripheral edge of the convex portion 515b of the cam portion 51b (specifically, the approximate center in the circumferential direction of the outer peripheral edge), the center of the rotating shaft 24b and the center of the convex portion 515b of the cam portion 51b are The distance between the outer edges of the cam portions 51b is the largest. The lower portion of the cam portion 51b overlaps the terminal portion 3b in the thickness direction, and is located on the deep side of the terminal portion 3b in FIG. 23 .

Next, the flow of connecting the electric wires to the connecting device 1b will be described. First, under the initial state shown in FIG. 23 , the operator inserts the front end of tools 92 such as a flat-shaped screwdriver into the through hole 231b at the upper left end of the housing 2b. The front end of the tool 92 is in contact with the upper surface of the left end portion of the operation portion 5b located below the through hole 231b. Then, the operator presses the tool 92 downward, thereby rotating the operation part 5b counterclockwise in FIG. 23 around the rotation shaft 24b.

When the operation part 5b rotates, as shown in FIG. 25, the distance between the contact part of the cam part 51b and the elastic member 4b, and the center of the rotation shaft 24b increases. Accordingly, the movable portion 43b of the elastic member 4b is pressed downward by the cam portion 51b, and the raised portion 431b is cut away from the terminal portion 3b.

As shown in FIG. 25, in the operation part 5b in the middle of rotation, the restoring force vector 81b acting on the elastic member 4b of the first part 513b deviates to the left side from the imaginary straight line connecting the first part 513b and the second part 514b, that is, the reference line. 82b. Therefore, the rotational moment in the clockwise direction acts on the cam portion 51b. If the operator does not continue to push the operating portion 5b downward, the elastic member 4b and the operating portion 5b return to the initial state shown in FIG. 23 . Furthermore, the first portion 513b is a portion where the restoring force of the elastic member 4b in the operating portion 5b acts, specifically, it is a portion in contact with the elastic member 4b in the convex portion 515b of the cam portion 51b. In addition, the second portion 514b is a portion of the operation portion 5b that generates a reaction force against the restoring force, specifically, an intersection point of the bearing 54b with an imaginary line connecting the center of the first portion 513b and the rotation shaft 24b.

The operator resists the restoring force of the elastic member 4b and pushes the operation part 5b into the non-threaded state shown in FIG. 26 . In the non-wired state, the restoring force vector 81b acting on the elastic member 4b of the first portion 513b substantially overlaps with the reference line 82b connecting the first portion 513b and the second portion 514b. Thereby, the restoring force of the elastic member 4b and the reaction force to the restoring force generated in the operation portion 5b are balanced with each other.

Therefore, neither the clockwise rotational moment nor the counterclockwise rotational moment acts on the cam portion 51b. Therefore, even if the operator pulls out the tool 92 from the through hole 231b of the housing 2b (that is, even if the operator does not apply force to the operation portion 5b), the position in the circumferential direction of the operation portion 5b (i.e. rotation position) is stably maintained in the non-connected state shown in FIG. 26 . In addition, the state of the elastic member 4b can also be stably maintained (that is, temporarily suspended) in the non-knotted state. The non-threaded state shown in FIG. 26 is a temporarily paused state in which the elastic member 4b is temporarily suspended in a state where the elastic member 4b is flexed. In the connection device 1b, the operation part 5b has only one first portion 513b on which the restoring force of the elastic member 4b acts and a second portion 514b generating a reaction force against the restoring force. Thereby, the structure of the connecting device 1b can be simplified.

In this non-wired state, the upper surface of the right end portion of the operation portion 5b becomes a substantially horizontal plane substantially perpendicular to the vertical direction, and contacts the front end portion of the release portion 46b of the elastic member 4b from below. In addition, since a part of the operation part 5b (the left end part of the cam part 51b in the example shown in FIG. The counterclockwise rotation restricts the movement of the operation part 5b.

Moreover, in the connecting device 1b, it is also possible to rotate the operating part 5b counterclockwise from the rotational position shown in FIG. 26 in the same manner as the connecting device 1 shown in FIG. In this state, the position of the operation part 5b is maintained. This configuration can be realized, for example, by moving the upper position of the stopper 28b in FIG. 26 downward. In this case, the restoring force vector 81b is slightly inclined to the right side relative to the reference line 82b, and the rotational moment acting on the cam portion 51b is counterclockwise. That is, the force which intends to rotate the operation part 5b counterclockwise acts on the cam part 51b from the elastic member 4b. However, the counterclockwise rotation of the operating portion 5b is restricted by the contact between the left end portion of the cam portion 51b and the stopper 28b. In addition, no force is applied to the cam portion 51b from the elastic member 4b in a direction in which the operation portion 5b is rotated clockwise and returns to the initial state. Therefore, the position of the operation part 5b can be stably maintained, and the shape of the elastic member 4b in the state separated from the terminal part 3b can be stably maintained.

When the connection device 1b is in the non-connected state, as shown in Figure 27, insert the electric wire 91 from the insertion hole 21b of the housing 2b into the housing 2b along the predetermined insertion direction, and the elastic wire between the terminal part 3b and the non-connected state between members 4b. The insertion direction of the electric wire 91 to the casing 2b is a direction substantially parallel to the left-right direction. The type and diameter of the electric wire 91 are the same as those described above.

The front ends of the electric wires 91 are directly in contact with the electric wire receiving portion 44b of the elastic member 4b inside the casing 2b. In the example shown in FIG. 27 , the left side of the wire receiving portion 44b is a receiving surface 441b that directly contacts the front end of the wire 91 and extends from the front end to the surroundings. The receiving surface 441b is located on the deeper side than the cut and raised portion 431b in the insertion direction of the electric wire 91, and as described above, extends toward the periphery with respect to the insertion direction.

The electric wire 91 moves toward the depth side of the insertion direction in a state where the tip is brought into contact with the receiving surface 441b of the electric wire receiving portion 44b. Thereby, as shown in FIG. 28 , the receiving surface 441b is pressed toward the deeper side in the insertion direction, and the wire receiving portion 44b and the release portion 46b are deformed in the vertical direction so as to become flat. The front end of the release part 46b moves downward, and presses the right end of the cam part 51b of the operation part 5b which is in contact with the front end downward. That is, the force generated by pushing in the electric wire 91 is indirectly applied to the operation portion 5 b via the elastic member 4 b directly in contact with the electric wire 91 . Then, the operation part 5b slightly rotates clockwise in FIG. 28 around the rotation shaft 24b. In other words, the position of the operation portion 5b (that is, the rotational position) is changed in the circumferential direction with the rotational shaft 24b as the center. The rotation direction of the cam portion 51b on the first portion 513b is from the deep side of the insertion direction of the electric wire 91 toward the front side (that is, toward the substantially left side in FIG. 28 ).

Thus, as shown in FIG. 28 , the restoring force vector 81b deviates from the reference line 82b to the left in FIG. 28 , and a clockwise rotational moment acts on the cam portion 51b by the restoring force of the elastic member 4b. As a result, the operation part 5b is further rotated clockwise, and the elastic member 4b returns from the non-threaded state.

Then, as shown in FIG. 29 , the elastic member 4 b moves to the connection state where the electric wire 91 is held between the terminal portion 3 b, and the electric wire 91 and the terminal portion 3 b are electrically and mechanically connected. In other words, after the wire 91 is inserted into the connection device 1b, the wire is automatically connected (that is, the operator does not need to operate the operation portion 5b using tools other than the wire 91 or fingers). For example, the operator can confirm the transition to the wire-connected state by using the vibration or sound generated when the electric wire 91 is pressed against the terminal portion 3b by using the cut and raised portion 431b of the elastic member 4b. This vibration or sound is generated, for example, when one of the elastic member 4b, the electric wire 91, the terminal portion 3b, the operation portion 5b, and the case 2b collides with the other. In the connecting device 1b, various structures may be adopted to promote the generation of the vibration, sound, etc., or to amplify the vibration, sound, etc.

In the connecting device 1b in the wired state, the position of the operating part 5b that can be seen from the through hole 231b of the housing 2b is the same as the position of the operating part 5b that can be seen from the through hole 231b in the non-connected state. The direction and the distance from the through hole 231b are different. Therefore, the operator can easily confirm that the connection device 1b has shifted from the non-connection state to the connection state by recognizing the operation portion 5b from the through hole 231b. Similar to the above, the operator can also easily confirm that the connection device 1b is in the initial state by recognizing the operation portion 5b from the through hole 231b. That is, the portion of the operation portion 5b that can be seen from the through hole 231b is an identifiable identification portion that displays the state of the elastic member 4b. In this case, coloring or the like may be applied to the portion of the operation portion 5b visible from the through hole 231b to make the distinction between the initial state, the connected state, and the non-connected state clearer.

When taking out the electric wire 91 from the connecting device 1b, for example, the operator inserts the front end of a tool such as a flathead screwdriver into the through hole 231b of the housing 2b, and presses the left end of the operation part 5b downward. Thereby, the operation part 5b rotates counterclockwise in FIG. 29 . If the operation part 5b is rotated to the unknotted state shown in FIG. 27, then as mentioned above, the restoring force vector 81b (refer to FIG. 26) is approximately overlapped with the reference line 82b, and the elastic member 4b is kept in the unknotted state away from the electric wire 91 downward. state. Thereby, the clamping of the electric wire 91 by the elastic member 4b and the terminal part 3b is released. An operator can easily take out the electric wire 91 from the connection device 1b by pulling out the electric wire 91 from the insertion hole 21b.

As described above, the connection device 1b for connecting the electric wire 91 includes the housing 2b, the conductive terminal portion 3b, the elastic member 4b, and the operation portion 5b. The terminal portion 3b is fixed to the housing 2b. The elastic member 4b is mounted on the housing 2b, and presses and holds the electric wire 91 to the terminal portion 3b by a restoring force. The operation part 5b applies a force to the elastic member 4b so that it bends from the initial state to the untie state, and maintains the untie state. The operation part 5b has the 1st part 513b to which the restoring force of the elastic member 4b acts, and the 2nd part 514b which generates the reaction force with respect to this restoring force. The vector of the restoring force is used as the restoring force vector 81b, and the straight line connecting the first part 513b and the second part 514b is used as the reference line 82b.

When the elastic member 4b is in the non-wired state, the restoring force and the reaction force are balanced by the restoring force vector 81b substantially overlapping the reference line 82b, so as to maintain the position of the operating part 5b, and then change the state of the elastic member 4b remain in the unconnected state. In addition, when the electric wire 91 is inserted between the terminal portion 3b and the elastic member 4b in the non-connected state, the position of the operation portion 5b is changed, and the restoring force vector 81b deviates from the reference line 82b, whereby the elastic member 4b is Restoration force restores from the non-connection state, and shifts to the connection state in which the electric wire 91 is sandwiched between the terminal portion 3b.

By making the connection device 1b the above-mentioned structure, there is no need to provide other structures such as a step part for locking the operation part 5b in the non-wired state, and a state release part for releasing the lock of the operation part 5b. The construction of the connecting device 1b can thus be simplified. In addition, unlike the case where the operation portion 5b is locked to the step portion of the housing 2b, it is possible to prevent locking failure due to wear of the step portion, etc., and to achieve a longer life of the connecting device 1b.

As described above, in the connection device 1b, it is preferable to maintain the position of the operation portion 5b even in the state where the elastic member 4b in the non-wired state is further flexed. At this time, the direction of the rotational moment acting on the cam portion 51b by the restoring force of the elastic member 4b is opposite to the direction of returning the operation portion 5b to the threaded state and the initial state. Thereby, the shape of the elastic member 4b in the state separated from the terminal part 3b can be maintained more stably.

In the connection device 1b, it is preferable that the operation part 5b is equipped with the cam part 51b which rotates centering on the rotation shaft 24b. The cam portion 51b is in contact with the elastic member 4b at a first portion 513b, and is in contact with the rotation shaft 24b at a second portion 514b, that is, a bearing 54b. And, when the elastic member 4b moves toward the non-threaded state, the distance between the first portion 513b and the rotation shaft 24b increases due to the rotation of the cam portion 51b, so that the elastic member 4b is deflected, and the restoring force vector 81b It substantially overlaps with the reference line 82b to maintain the rotational position of the operation part 5b, and further maintain the state of the elastic member 4b in a non-connected state. Thereby, the transition of the elastic member 4b to the non-threaded state and the maintenance of the non-threaded state can be realized with a simple structure.

As described above, in the connecting device 1b, it is preferable that when the electric wires 91 are connected, the inserted electric wires 91 directly contact the elastic member 4b to deform the elastic member 4b, and force is applied to the operation part 5b through the elastic member 4b. , to change the position of the operation part 5b. Thereby, the degree of freedom of the shape and arrangement|positioning of the operation part 5b can be improved compared with the case where the part which contacts the electric wire 91 directly is provided in the operation part 5b.

In the connection device 1b, preferably, the elastic member 4b has a wire receiving portion 44b directly in contact with the front end of the wire 91, and a release portion 46b extending from the wire receiving portion 44b toward the operation portion 5b. In addition, preferably, the wire receiving portion 44b has a receiving surface 441b extending from the front end of the wire 91 toward the surroundings. Furthermore, it is preferable to deform the elastic member 4b by pressing the receiving surface 441b with the electric wire 91 toward the water penetration side of the insertion direction of the electric wire 91, so that the release part 46b contacts the operation part 5b and applies a force to rotate the cam part 51b. . Thereby, abrasion of the operation part 5b by direct contact with the electric wire 91 can be prevented.

In the connection device 1b, the cut and raised portion 431b of the elastic member 4 is a wire contact portion that directly contacts the wire 91 in the wire-connected state. Preferably, at least when the elastic member 4b moves from the non-wired state to the wired state, the moving path of the wire contact portion does not overlap with the moving area of the operating portion 5b. Thereby, the electric wire contact portion of the elastic member 4b can be prevented from being in contact with the operation portion 5b to hinder the movement of the operation portion 5b.

In the connection device 1b, it is preferable to provide a recognizable identification part (in the above example, a part of the operation part 5b that can be seen from the through hole 231b) that displays the state of the elastic member 4b. Thereby, the state of the elastic member 4b can be confirmed easily and quickly.

Furthermore, in the connection device 1b, a part of the operation part 5b may also protrude from the housing 2b. For example, a substantially rod-shaped protruding portion extending upward from the cam portion 51b and protruding from the housing 2b may be provided. In this case, this protruding part functions as a recognizable identification part which shows the state of the elastic member 4b. Therefore, by recognizing the position of the protruding portion of the operation portion 5b, the state of the elastic member 4b can be easily and quickly confirmed. In addition, the operator can easily operate the operation part 5 b by bringing fingertips or the like into contact with the protruding part. Preferably, the protruding portion of the operation portion 5b protrudes from the casing 2b when the elastic member 4b is in a non-wired state, and is located in the casing 2b when the elastic member 4b is in a connected state. Thereby, in the non-connected state, the operation part 5b can be easily operated without using a tool such as a flat-head screwdriver, and it is possible to prevent erroneous operation of the operation part 5b in the connected state.

In the connecting device 1b, preferably, the elastic member 4b is a leaf spring. Thereby, the structure of the connecting device 1b can be further simplified.

As mentioned above, in the connecting device 1, 1a, 1b, when the electric wire 91 is connected, the force is directly or indirectly transmitted from the inserted electric wire 91 to the operation part 5, 5a, 5b to change the operation part 5, The positions of 5a and 5b make the restoring force vectors 81, 81a, 81b deviate from the reference lines 82, 82a, 82b. Thereby, the automatic connection of the connection electric wire 91 can be realized only by operation, such as insertion of the electric wire 91, Therefore The electric wire 91 can be easily connected to the connection apparatus 1, 1a, 1b.

Next, a connection device 1c according to a fourth embodiment of the present invention will be described. Fig. 30 is an enlarged longitudinal sectional view showing the vicinity of the operation portion 5c of the connection device 1c. Fig. 30 shows the connecting device 1c in an initial state.

The connecting device 1c includes a housing 2c, a terminal portion 3c, an elastic member 4c, an operation portion 5c, and a release portion 6c. In the connection device 1c, the shape of the housing 2c, the terminal part 3c, the elastic member 4c and the operation part 5c, and the action of the elastic member 4c and the operation part 5c are different from the connection device 1 shown in Figure 1, but the material and function Wait for the same. In addition, the connection device 1c may be substantially the same as the connection device 1, and may include two or more sets of terminal parts 3c, elastic members 4c, operation parts 5c, and release parts 6c in the housing 2c.

The terminal part 3c is a conductive substantially plate-shaped member fixed to the housing 2c. The terminal part 3c is made of metal, for example. The elastic member 4c is an elastically deformable member mounted on the casing 2c. The elastic member 4c is, for example, a substantially strip-shaped leaf spring. The elastic member 4c may be formed of a conductive material such as metal, or may be formed of an insulating material such as resin. The elastic member 4c has a shape bent into a substantially L-shape, a substantially V-shape, or a substantially U-shape at a central portion in the longitudinal direction.

The elastic member 4c is similar to the above-mentioned elastic member 4, and is equipped with the bending part 41c, the fixed part 42c, and the movable part 43c. The front end portion (that is, the left end portion in FIG. 30 ) of the movable portion 43c is in contact with the terminal portion 3c from the lower side. Thereby, the insertion path of the electric wire mentioned later is closed inside the insertion hole 21c provided in the right side of the case 2c. In addition, the movable part 43c is in contact with the operation part 5c from the lower side. As will be described later, the movable portion 43c is elastically deformed and bent downward when the operation portion 5c is pressed downward, and further moves away from the terminal portion 3c downward. In addition, when the pressing force exerted downward on the movable portion 43c disappears, the movable portion 43c returns to the original state by the restoring force (that is, elastic recovery).

The operation part 5c is equipped with the advance and retreat part 56c and the drive part 52c. When viewed from the front, the advancing and retreating portion 56c is a substantially pentagonal plate-shaped portion with one vertex located at the lower end, and is arranged inside the casing 2c (that is, more inside than the outer edge of the casing 2c). The advance and retreat portion 56c overlaps the terminal portion 3c in the thickness direction, and is located on the deeper side of the terminal portion 3c in FIG. 30 .

The shape of the upper end of the advancing and retreating portion 56c is a substantially arc shape protruding upward when viewed from the front. The upper end of the advancing and retreating portion 56c is in contact with the inner surface 25c of the upper end of the casing 2c from the lower side. The inner surface 25c of the casing 2c is a substantially flat surface extending substantially linearly in the left-right direction when viewed from the front. The lower end of the advancing and retreating portion 56c is in contact with the movable portion 43c of the elastic member 4c extending along the inner surface 25c of the casing 2c from the upper side. That is, the advancing and retreating portion 56c of the operating portion 5c is located between the elastic member 4c and the inner surface 25c of the casing 2c in the vertical direction.

The vertical distance between the inner surface 25c of the casing 2c and the movable portion 43c of the elastic member 4c decreases from the right side to the left side in FIG. 30 . The movable part 43c of the elastic member 4c has a first inclined part 432c and a second inclined part 433c. The first inclined portion 432c is a portion from the front end of the movable portion 43c to approximately the center, and the second inclined portion 433c is a portion from the right end of the first inclined portion 432c toward the curved portion 41c. The first inclined portion 432c and the second inclined portion 433c are inclined so as to approach the inner surface 25c of the casing 2c toward the left in FIG. 30 . When viewed from the front, the angle (acute angle) formed by the first inclined portion 432c and the inner surface 25c is smaller than the angle (acute angle) formed by the second inclined portion 433c and the inner surface 25c. In the initial state shown in FIG. 30 , the advancing and retreating portion 56c is in contact with the second inclined portion 433c of the movable portion 43c on the left side of the lower end. The left side of the advancing and retreating portion 56c extends substantially parallel to the second inclined portion 433c in the initial state when viewed from the front.

The driving portion 52c is a substantially rod-shaped portion extending rightward from the right end portion of the advancing/retracting portion 56c and protruding rightward from the casing 2c. In the example shown in FIG. 30 , the movement of the operating portion 5 c to the right is restricted by the advancing and retreating portion 56 c and the driving portion 52 c partially contacting the housing 2 c.

In the connection device 1c, by pressing the driving part 52c toward the left, the advance and retreat part 56c is in contact with the inner surface 25c of the housing 2c and the movable part 43c of the elastic member 4c inside the housing 2c, and faces along the inner surface 25c. The left side of 30 moves roughly in a straight line. In the following description, the moving direction of the advancing and retreating portion 56c, that is, the left-right direction in FIG. 30 may also be referred to as the "advancing and retreating direction". In addition, the inner surface 25c of the casing 2c that guides the retreating portion 56c to move in the advancing and retreating direction is also referred to as a "guide surface 25c".

The release part 6c is a substantially inverted L-shaped plate member arranged on the left side of the operation part 5c. The release portion 6c is centered on a substantially cylindrical rotating shaft 24c provided in the casing 2c and extending in the thickness direction, and is rotatably supported by the casing 2c in a plane substantially perpendicular to the thickness direction. The rotation shaft 24c is located on the left side and above the left end portion of the terminal portion 3c extending approximately parallel to the left-right direction.

The release part 6c includes a release lower part 61c extending downward from the rotation shaft 24c, and a release upper part 62c extending from the rotation shaft 24c to the right (that is, toward the advancing and retreating part 56c of the operation part 5c). The release lower part 61c is further left than the left end part of the terminal part 3c, and extends to the lower side than the terminal part 3c. The release lower part 61c is located on the insertion path of the electric wire. The release upper part 62c is located above the terminal part 3c.

Next, the flow of connecting the electric wires to the connecting device 1c will be described. First, in the initial state shown in FIG. 30 , the operator contacts the driving part 52c of the operation part 5c with fingertips, etc., and moves the driving part 52c to the left and pushes it into the housing 2c. Thereby, the advancing and retreating portion 56c moves from the right side to the left side in FIG.

When the operation part 5c moves, as shown in FIG. 31, the movable part 43c of the elastic member 4c is pressed downward by the advancing and retreating part 56c, and moves away from the terminal part 3c downward. In the operation part 5c during the movement shown in Fig. 31, the restoring force vector 81c of the elastic member 4c acting on the first part 513c deviates to the right side from the imaginary straight line connecting the first part 513c and the second part 514c, that is, the reference line 82c . Therefore, the force towards the right in Fig. 31 acts on the advancing and retreating part 56c. If the operator does not continue to push the driving part 52c into the casing 2c, the elastic member 4c and the operating part 5c return to the initial state shown in Fig. 30 .

Moreover, the first part 513c is a part of the operating part 5c where the restoring force of the elastic member 4c acts, specifically, it is a part in contact with the elastic member 4c in the lower end of the advancing and retreating part 56c. In the state shown in FIG. 31 , the first portion 513c is the portion in contact with the second inclined portion 433c of the movable portion 43c of the elastic member 4c on the left side of the lower end portion of the advancing and retreating portion 56c. In addition, the second portion 514c is a portion of the operating portion 5c that generates a reaction force against the restoring force, specifically, the upper end of the advancing and retreating portion 56c that contacts the guide surface 25c.

The operator resists the restoring force of the elastic member 4c, and pushes the operation part 5c into the non-threaded state shown in FIG. 32 . In the non-wired state, the restoring force vector 81c acting on the elastic member 4c of the first portion 513c substantially overlaps with the reference line 82c connecting the first portion 513c and the second portion 514c. In the non-wired state, the first portion 513c is the lower end of the advancing and retreating portion 56c, and is in contact with the first inclined portion 432c of the movable portion 43c of the elastic member 4c. In addition, the first inclined portion 432c is substantially parallel to the guide surface 25c at a position in contact with the lower end of the advancing and retreating portion 56c. Thereby, the restoring force of the elastic member 4c and the reaction force to the restoring force generated in the operation portion 5c are balanced with each other.

Therefore, neither the aforementioned force toward the right nor the force toward the left acts on the advancing and retreating portion 56c. Therefore, even if the operator separates his fingers from the driving portion 52c (that is, even in a state where the operator does not apply force to the operating portion 5c), the position in the forward and backward direction of the operating portion 5c can be stably maintained as shown in FIG. 32 the non-connected state. In addition, the state of the elastic member 4c can also be stably maintained (that is, temporarily suspended) in the non-knotted state. The non-threaded state shown in FIG. 32 is a temporarily paused state in which the elastic member 4c is temporarily suspended in a state where the elastic member 4c is flexed. In this non-wired state, the left end portion of the operation portion 5c is in contact with the release upper portion 62c of the release portion 6c from the right side. In the connecting device 1c, the operation part 5c has only one first portion 513c on which the restoring force of the elastic member 4c acts and a second portion 514c generating a reaction force against the restoring force. Thereby, the structure of the connecting device 1c can be simplified.

In the connecting device 1c, the operation part 5c can also move further to the left in the figure than the state shown in FIG. 32 . In this case, the shape of the elastic member 4c is substantially unchanged from that shown in FIG. . Therefore, the position of the operation part 5c in the forward and backward direction and the state of the elastic member 4c (that is, the temporarily paused state) can be stably maintained.

Moreover, in the connecting device 1c, it is also possible to move the operation part 5c further to the left than the position shown in FIG. 32 in the same manner as the connecting device 1 shown in FIG. The position of the operation part 5c is maintained. This structure can be realized, for example, by bending the first inclined portion 432c of the elastic member 4c slightly upward at the front end side (ie, left side) of the contact portion with the advancing and retreating portion 56c in FIG. 32 . In this case, the restoring force vector 81c is slightly inclined to the left relative to the reference line 82c, and the force acting on the forward and backward portion 56c is leftward. That is, a force intended to move the operation portion 5c to the left acts on the advancing/retracting portion 56c from the elastic member 4c. In addition, no force in the direction in which the operating portion 5c moves rightward and returns to the initial state does not act on the advancing/retracting portion 56c from the elastic member 4c. Therefore, the position of the operation part 5c can be stably maintained, and the shape of the elastic member 4c in the state separated from the terminal part 3c can be stably maintained.

If the connection device 1c is in the non-connected state, then as shown in Figure 33, insert the electric wire 91 from the insertion hole 21c of the housing 2c into the housing 2c along the predetermined insertion direction, and the elastic member located at the terminal part 3c and the non-connected state Between 4c. The insertion direction of the electric wire 91 into the casing 2c is a direction substantially parallel to the left-right direction. The type and diameter of the electric wire 91 are the same as those described above.

The front end of the electric wire 91 is tied in the casing 2c and directly contacts with the release lower part 61c of the release part 6c. In the example shown in FIG. 33 , the right side of the release lower part 61c is a receiving surface 611c that directly contacts the front end of the electric wire 91 and extends from the front end to the surroundings. The receiving surface 611c is deeper than the terminal portion 3c and the movable portion 43c of the elastic member 4c in the insertion direction of the electric wire 91 , and extends around in a direction substantially perpendicular to the insertion direction of the electric wire 91 .

The electric wire 91 moves toward the deeper side in the insertion direction in a state where the front end is brought into contact with the receiving surface 611c of the release lower portion 61c. Thereby, as shown in FIG. 34 , the receiving surface 611c is pressed toward the deeper side in the insertion direction, and the releasing portion 6c is slightly rotated clockwise in FIG. 34 around the rotation shaft 24c. Thereby, the upper part 62c is released and presses the advancing and retreating part 56c to the right in FIG. 34 . That is, the force generated by pushing in the electric wire 91 is indirectly applied to the operation part 5 c via the release part 6 c that directly contacts the electric wire 91 . Then, the operation part 5c is slightly moved to the right, and the position of the operation part 5c in the forward and backward direction is changed. The moving direction of the operation part 5c is the direction from the deep side of the insertion direction of the electric wire 91 toward the front side.

Thereby, as shown in FIG. 34 , the position in contact with the elastic member 4c in the operation portion 5c is changed from the lower end of the operation portion 5c to the left side of the lower end, and the position in contact with the operation portion 5c in the elastic member 4c is changed from The first inclined portion 432c is changed to a second inclined portion 433c. In addition, the restoring force vector 81c deviates from the reference line 82c to the right in FIG. 34 , and the restoring force of the elastic member 4c acts on the forward and backward portion 56c with a rightward force. As a result, the operation part 5c is further moved to the right, and the elastic member 4c is restored from the non-knotted state.

Then, as shown in FIG. 35 , the elastic member 4c moves to the connection state where the electric wire 91 is held between the terminal portion 3c, and the electric wire 91 and the terminal portion 3c are electrically and mechanically connected. In other words, after the electric wire 91 is inserted into the connection device 1c, the wire is automatically connected (that is, the operator does not need to operate the operation portion 5c using a tool or fingers other than the electric wire 91). For example, the operator can check the transition to the wired state by the vibration or sound generated when the electric wire 91 is pressed against the terminal portion 3c by using the movable portion 43c of the elastic member 4c. This vibration or sound is generated, for example, when one of the elastic member 4c, the electric wire 91, the terminal portion 3c, the operation portion 5c, and the housing 2c collides with the other. In the connection device 1c, various structures may be adopted to promote the generation of the vibration, sound, etc., or to amplify the vibration, sound, etc.

In the connecting device 1c in the wired state, the position of the driving part 52c of the operating part 5c (that is, the position in the forward and backward direction) is different from the position of the driving part 52c in the non-wired state. Therefore, the operator can easily confirm the transition of the connection device 1c from the non-connection state to the connection state by identifying the position of the driving part 52c. Similar to the above, the operator can also easily confirm that the connection device 1c is in the initial state by recognizing the position of the driving part 52c. That is, the drive part 52c of the operation part 5c is a recognizable recognition part which displays the state of the elastic member 4c.

When removing the electric wire 91 from the connecting device 1c, for example, the operator puts fingertips or the like in contact with the driving part 52c of the operation part 5c, moves the driving part 52c to the left, and pushes the driving part 52c into the housing 2c. When the operation part 5c moves to the untie state shown in FIG. 33, as described above, the restoring force vector 81c (see FIG. 32) substantially overlaps the reference line 82c, and the elastic member 4c maintains the untie state away from the electric wire 91 downward. Thereby, the clamping of the electric wire 91 by the elastic member 4c and the terminal part 3c is released. An operator can easily take out the electric wire 91 from the connection device 1c by pulling out the electric wire 91 from the insertion hole 21c.

As described above, the connection device 1c for connecting the electric wire 91 includes the housing 2c, the conductive terminal portion 3c, the elastic member 4c, and the operation portion 5c. The terminal portion 3c is fixed to the case 2c. The elastic member 4c is mounted on the housing 2c, and presses and holds the electric wire 91 to the terminal portion 3c by a restoring force. The operation part 5c applies a force to the elastic member 4c so that it bends from the initial state to the untie state, and maintains the untie state. The operation part 5c is provided with the 1st part 513c to which the restoring force of the elastic member 4c acts, and the 2nd part 514c which produces the reaction force with respect to this restoring force. The vector of this restoring force is set as the restoring force vector 81c, and the straight line connecting the first portion 513c and the second portion 514c is set as the reference line 82c.

When the elastic member 4c is in the non-threaded state, the restoring force and the reaction force are balanced by the restoring force vector 81c substantially overlapping the reference line 82c, so as to maintain the position of the operating part 5c, and then change the state of the elastic member 4c remain in the unconnected state. In addition, in the state where the electric wire 91 is inserted between the terminal portion 3c and the elastic member 4c in the non-connected state, the position of the operation portion 5c is changed, and the restoring force vector 81c deviates from the reference line 82c. Restoration force restores from the non-connection state, and shifts to the connection state in which the electric wire 91 is sandwiched between the terminal portion 3c.

By setting the connection device 1c as described above, it is not necessary to provide other structures such as step parts for locking the operation part 5c in the non-wired state, and thus the structure of the connection device 1c can be simplified. In addition, unlike the case where the operation portion 5c is locked to the step portion of the housing 2c, it is possible to prevent locking failure due to wear of the step portion, etc., and to achieve a longer life of the connection device 1c.

As described above, in the connection device 1c, it is preferable that the position of the operation portion 5c is maintained even in the state where the elastic member 4c in the non-wired state is further flexed. At this time, the direction of the force acting on the advancing and retreating portion 56c by the restoring force of the elastic member 4c is opposite to the direction in which the operating portion 5c returns to the threaded state and the initial state. Therefore, the shape of the elastic member 4c in a state away from the terminal portion 3c can be more stably maintained.

In the connection device 1c, preferably, the housing 2c has a linearly extending guide surface 25c, and the elastic member 4c extends along the guide surface 25c. In addition, preferably, the operation part 5c has an advancing and retreating part 56c, and the advancing and retreating part 56c is located between the elastic member 4c and the guide surface 25c, and is connected to the elastic member 4c and the guide surface 25c by the first part 513c and the second part 514c respectively. The guide surface 25c contacts and moves linearly in a predetermined forward and backward direction (in the above example, the left and right direction in FIG. 30 ). The distance between the elastic member 4c and the guide surface 25c decreases from one side of the advancing and retreating direction toward the other side (in the above example, from the right toward the left in FIG. 30 ). Preferably, when the elastic member 4c moves toward the non-knotted state, the elastic member 4c is made elastic by moving the advance and retreat portion 56c from the above-mentioned one side of the advance and retreat direction to the other side (in the above example, to the left in FIG. 30 ). The member 4c flexes, and at the position where it contacts the first portion 513c, the elastic member 4c is substantially parallel to the guide surface 25c. In addition, the restoring force vector 81c substantially overlaps the reference line 82c to maintain the position of the operating portion 5c in the advancing and retreating direction, thereby maintaining the state of the elastic member 4c in a non-wired state. In addition, it is preferable that when the electric wire 91 is connected, the restoring force vector 81c deviates from the other side of the forward and backward direction by the operation part 5c moving to one side (in the above example, to the right in FIG. 30 ). Referring to the reference line 82c, the elastic member 4c moves from the non-threaded state to the threaded state due to the restoring force. Thereby, the transition of the elastic member 4c to the untied state, the maintenance in the untied state, and the transition from the untied state to the tied state can be realized with a simple structure.

In the above-mentioned connection device 1c, when the electric wire 91 is connected, the force is indirectly transmitted from the inserted electric wire 91 to the operation part 5c through the release part 6c, so that the operation part 5c is directed from the other side of the forward and backward direction to the above-mentioned One side moves to make the restoring force vector 81c deviate from the reference line 82c, but not necessarily limited thereto. For example, force may be directly transmitted from the inserted electric wire 91 to the operation part 5c, whereby the operation part 5c may be moved from the other side to the above-mentioned one side in the advancing and retreating direction. That is, in the connection device 1c, it is preferable that when the electric wire 91 is connected, the force is transmitted directly or indirectly from the inserted electric wire 91 to the operation part 5c, whereby the operation part 5c is moved from the forward and backward direction. The other side moves toward the one side, and the restoring force vector 81c deviates from the reference line 82c. Thereby, since the automatic connection of the connection electric wire 91 can be realized only by the operation of inserting the electric wire 91 etc., the electric wire 91 can be easily connected to the connection apparatus 1c.

In the connecting device 1c, the movable portion 43c of the elastic member 4c is a wire contact portion that directly contacts the wire 91 in the wire-connected state. Preferably, at least when the elastic member 4c moves from the non-wired state to the wired state, the moving path of the wire contact portion does not overlap with the moving area of the operating portion 5c. Thereby, the electric wire contact portion of the elastic member 4c can be prevented from being in contact with the operation portion 5c to hinder the movement of the operation portion 5c.

In the connection device 1c, it is preferable that a part of the operation part 5c (in the above example, the drive part 52c) protrudes from the housing 2c. Thereby, the operator can bring fingertips etc. into contact with the drive part 52c, and can operate the operation part 5c easily.

In the connection device 1c, it is preferable to provide a recognizable identification part (in the above-mentioned example, the drive part 52c) which displays the state of the elastic member 4c. Thereby, the state of the elastic member 4c can be confirmed easily and quickly.

When the elastic member 4c is in the wired state, the driving part 52c can also be located in the casing 2c. In this case, it is possible to prevent erroneous operation of the operation portion 5c in the wired state. As described above, when the elastic member 4c is in the non-wired state, the drive portion 52c protrudes from the housing 2c. Thereby, it is possible to prevent erroneous operation in the wired state, and it is possible to easily operate the operation portion 5c without using tools such as a flat-blade screwdriver in the non-wired state. In addition, whether the elastic member 4c is in a non-wired state can be easily and quickly confirmed by identifying whether the driving portion 52c protrudes from the casing 2c.

In the connection device 1c, preferably, the elastic member 4c is a leaf spring. Thereby, the structure of the connecting device 1c can be further simplified.

Next, a connecting device 1d according to a fifth embodiment of the present invention will be described. Fig. 36 is an enlarged longitudinal sectional view showing the vicinity of the operation portion 5d of the connection device 1d. In Fig. 36, the connecting device 1d in the non-connected state is shown.

The connection device 1d includes a housing 2d, a terminal portion 3d, an elastic member 4d, and an operation portion 5d. In the connection device 1d, the shape of the housing 2d, the terminal part 3d, the elastic member 4d and the operation part 5d, and the action of the elastic member 4d and the operation part 5d are different from the connection device 1 shown in Figure 1, but the material and function Wait for the same. In addition, the connection device 1d may be substantially the same as the connection device 1, and may include two or more sets of the terminal portion 3d, the elastic member 4d, and the operation portion 5d in the casing 2d.

The terminal part 3d is a conductive substantially plate-shaped member fixed to the housing 2d. The terminal part 3d is made of metal, for example. The elastic member 4d is an elastically deformable member mounted on the casing 2d. The elastic member 4d is, for example, a substantially strip-shaped leaf spring. The elastic member 4d may be formed of a conductive material such as metal, or may be formed of an insulating material such as resin. The elastic member 4d has a shape bent into a substantially L-shape, a substantially V-shape, or a substantially U-shape at a central portion in the longitudinal direction.

The elastic member 4d is the same as the elastic member 4 described above, and includes a curved portion 41d, a fixed portion 42d, and a movable portion 43d. The front end portion (ie, the lower end portion in FIG. 36 ) of the movable portion 43d is in contact with the terminal portion 3d from the upper side. Thereby, the insertion path of the electric wire mentioned later is closed inside the insertion hole 21d provided in the right side of case 2d. In addition, the movable part 43d is in contact with the operation part 5d. As will be described later, the movable portion 43d is elastically deformed and flexed when the operation portion 5d is pressed leftward, and moves away from the terminal portion 3d upward. In addition, when the pressing force exerted on the movable part 43d toward the left side disappears, the movable part 43d returns to the original state (ie, elastically returns) by the restoring force.

The operation unit 5d includes a rotation unit 57d and a driving unit 52d. The rotating portion 57d is a substantially disc-shaped or substantially cylindrical member centered on a central axis extending in the thickness direction. The rotating part 57d is placed inside the casing 2d (that is, on the inner side of the outer edge of the casing 2d) in the concave operation part mounting part 26d provided at the lower part of the casing 2d. The inner surface 261d of the operation part mounting part 26d is a part of the substantially cylindrical surface. When viewed from the front, the inner surface 261d of the operating portion mounting portion 26d is substantially fan-shaped, and the central angle of the fan-shape is, for example, about 135°. A guide surface 27d, which is an inclined surface upward as it goes to the left, is connected to the left end of the operation unit mounting portion 26d.

A notch 571d recessed toward the central axis is provided on one portion of the rotating portion 57d in the circumferential direction, and a protruding portion 572d protruding radially outward is provided on the other portion of the circumferential direction. In the example shown in FIG. 36, the notch portion 571d is located at the upper right portion of the rotating portion 57d. In addition, the protruding portion 572d is located at the lower end of the rotating portion 57d. The shape of the protruding portion 572d when viewed from the front is substantially triangular.

The shape of the notch 571d when viewed from the front is substantially rectangular. At the end edge on the right side of the notch portion 571d (that is, the end edge in the clockwise direction viewed from the central portion of the notch portion 571d) is provided with a protruding (ie counterclockwise) from the radially outer end toward the inside of the notch portion 571d. protruding) the notch protruding portion 573d. The shape of the notch protrusion 573d when viewed from the front is roughly triangular. On the left edge of the notch 571d (that is, the end edge in the counterclockwise direction viewed from the center of the notch 571d), a substantially flat wire receiving portion 574d extending in the thickness direction is provided. The notch portion 571d overlaps the terminal portion 3d in the thickness direction, and is located on the deep side of the terminal portion 3d in FIG. 36 .

The driving portion 52d is a substantially rod-shaped portion extending upward from the left end portion of the rotating portion 57d and protruding upward from the casing 2d. In the example shown in FIG. 36 , the rotating part 57d is restricted from rotating clockwise by the partial contact of the driving part 52d with the casing 2d. Moreover, the rotating part 57d can rotate counterclockwise along the inner surface 261d of the operating part mounting part 26d from the initial state shown in FIG. 36 . In addition, the rotating portion 57d can move to the left in FIG. 36 along the guide surface 27d from the position shown in FIG. 36 .

Next, the flow of connecting the electric wires to the connecting device 1d will be described. First, in the initial state shown in FIG. 36 , the operator makes the fingertip 93 or the like contact the front end portion of the drive portion 52d of the operation portion 5d to rotate the operation portion 5d counterclockwise. At this time, the rotating part 57d rotates counterclockwise along the inner surface 261d of the operation part mounting part 26d.

If the operating part 5d rotates, as shown in Figure 37, the notch protrusion 573d of the rotating part 57d is in contact with the movable part 43d of the elastic member 4d, and presses obliquely upward to the left (that is, toward the direction close to the fixed part 42d). The movable part 43d is moved. Thereby, the elastic member 4d bends, and the movable part 43d moves away from the terminal part 3d upwards.

As shown in FIG. 37, in the operation part 5d in the middle of rotation, the restoring force vector 81d acting on the elastic member 4d of the first part 513d deviates to the right side from the imaginary straight line connecting the first part 513d and the second part 514d, that is, the reference line. 82d. Therefore, if a clockwise rotational moment acts on the rotating part 57d and the operator does not continue to apply force to the driving part 52d of the operating part 5d, the elastic member 4d and the operating part 5d return to the initial state shown in FIG. 36 . Furthermore, the first part 513d is a part of the operating part 5d where the restoring force of the elastic member 4d acts, specifically, it is the front end of the notch protruding part 573d of the rotating part 57d that is in contact with the movable part 43d of the elastic member 4d. department. In addition, the second portion 514d is a portion of the operating portion 5d that generates a reaction force against the restoring force, specifically, the front end of the protrusion 572d of the rotating portion 57d that contacts the inner surface 261d of the operating portion mounting portion 26d. department.

The operator resists the restoring force of the elastic member 4d and rotates the operating portion 5d counterclockwise until the thread is not tied as shown in FIG. 38 . In the non-wired state, the restoring force vector 81d acting on the elastic member 4d at the first portion 513d substantially overlaps with the reference line 82d connecting the first portion 513d and the second portion 514d. Thereby, the restoring force of the elastic member 4d and the reaction force to the restoring force generated in the operation portion 5d are balanced with each other.

Therefore, neither the clockwise rotational moment nor the counterclockwise rotational moment acts on the rotating portion 57d. Therefore, even if the operator separates his fingertips or the like from the driving portion 52d (that is, even in a state where the operator does not apply force to the operating portion 5d), the position in the circumferential direction of the operating portion 5d (ie, the rotational position) can still be adjusted. It is stably maintained in the non-connected state shown in FIG. 38 . In addition, the state of the elastic member 4d is also stably maintained (that is, temporarily suspended) in the non-knotted state. The non-knotted state shown in FIG. 38 is a temporarily paused state in which the elastic member 4d is temporarily suspended in a deflected state. At this time, the electric wire receiving part 574d of the operation part 5d is located on the electric wire insertion path mentioned later.

In this non-wired state, the drive portion 52d of the operation portion 5d is in contact with the convex portion provided on the guide surface 27d of the housing 2d. Thereby, the operation|movement of the operation part 5d is restricted so that the operation part 5d may not further rotate counterclockwise. In the connecting device 1d, the operation part 5d has only one first portion 513d on which the restoring force of the elastic member 4d acts and a second portion 514d generating a reaction force against the restoring force. Thereby, the structure of the connecting device 1d can be simplified.

Moreover, in the connection device 1d, it is also possible to rotate the operation part 5d further counterclockwise than the rotation position shown in FIG. 38 in the same manner as the connection device 1 shown in FIG. In this state, the position of the operation part 5d is maintained. This configuration can be achieved, for example, by easing the inclination of the guide surface 27d of the housing 2d in FIG. 38 (ie, approaching the level). In this case, the restoring force vector 81d is slightly inclined to the left with respect to the reference line 82d, and the rotational moment acting on the rotating portion 57d is counterclockwise. That is, the force which intends to rotate the operation part 5d counterclockwise acts on the rotation part 57d from the elastic member 4d. However, the rotation of the operation part 5d in the counterclockwise direction is restricted by the contact between the drive part 52d and the casing 2d. In addition, no force in the direction in which the operation part 5d is rotated clockwise and returns to the initial state does not act on the rotation part 57d from the elastic member 4d. Therefore, the position (that is, the rotational position) of the operation portion 5d can be stably maintained, and the shape of the elastic member 4d in the state away from the terminal portion 3d can be stably maintained.

If the connection device 1d is in the non-connected state, then as shown in Figure 39, insert the electric wire 91 from the insertion hole 21d of the housing 2d into the housing 2d along the predetermined insertion direction, and the elastic member located at the terminal part 3d and the non-connected state Between 4d. The insertion direction of the electric wire 91 to the casing 2d is an oblique direction inclined with respect to the up-down direction and the left-right direction. The type and diameter of the electric wire 91 are the same as those described above.

The front end of the electric wire 91 is tied in the casing 2d and directly contacts with the electric wire receiving portion 574d of the operating portion 5d. In the example shown in FIG. 39 , the right side of the wire receiving portion 574d is directly in contact with the front end of the wire 91 and is a receiving surface 575d extending from the front end toward the surroundings. The receiving surface 575d is on the deeper side than the elastic member 4d in the unconnected state in the insertion direction of the electric wire 91, and extends around in a direction substantially perpendicular to the insertion direction. Furthermore, the receiving surface 575d does not necessarily have to be a surface perpendicular to the insertion direction.

The electric wire 91 moves toward the depth side of the insertion direction in a state where the tip is brought into contact with the receiving surface 575d of the electric wire receiving portion 574d. Thereby, force is directly transmitted from the electric wire 91 to the operation part 5d. Then, press the receiving surface 575d toward the deeper side of the insertion direction, as shown in FIG. . Thus, the restoring force vector 81d deviates from the reference line 82d to the right in FIG. 40 , and a clockwise rotational moment acts on the rotating portion 57d by the restoring force of the elastic member 4d. As a result, the operation part 5d is further rotated clockwise, and the elastic member 4d returns from the non-threaded state.

Then, as shown in FIG. 41 , the elastic member 4 d moves to a connection state in which the electric wire 91 is held between the terminal portion 3 d, and the electric wire 91 and the terminal portion 3 d are electrically and mechanically connected. In other words, after the wire 91 is inserted into the connection device 1d, the wire is automatically connected (that is, the operator does not need to operate the operation portion 5d using tools other than the wire 91 or fingers). The operator can confirm the transition to the wire-connected state, for example, by vibration or sound generated when the electric wire 91 is pressed against the terminal portion 3d by the movable portion 43d of the elastic member 4d. This vibration or sound is generated, for example, when one of the elastic member 4d, the electric wire 91, the terminal portion 3d, the operation portion 5d, and the housing 2d collides with the other member. In the connection device 1d, various structures that promote generation of the vibration, sound, etc. or amplify the vibration, sound, etc. may be employed.

In the connection device 1d in the wired state, the position of the driving portion 52d of the operating portion 5d is different from that in the non-wired state. Therefore, the operator can easily confirm the transition of the connection device 1d from the non-connection state to the connection state by identifying the position of the driving portion 52d. Similar to the above, the operator can also easily confirm that the connecting device 1d is in the initial state by recognizing the position of the driving portion 52d. That is, the drive part 52d of the operation part 5d is a recognizable recognition part which displays the state of the elastic member 4d.

When taking out the electric wire 91 from the connecting device 1d, for example, the operator presses down the driving part 52d of the operation part 5d with a tool such as a fingertip or a flathead screwdriver. Thereby, the operation part 5d rotates counterclockwise in FIG. 41 . When the operation part 5d is rotated to the unconnected state shown in FIG. 39 , as described above, the restoring force vector 81d (refer to FIG. 38 ) substantially overlaps the reference line 82d, and the elastic member 4d is maintained in the unconnected state away from the electric wire 91 upward. . Thereby, the clamping of the electric wire 91 by the elastic member 4d and the terminal part 3d is released. An operator can easily take out the electric wire 91 from the connection device 1d by pulling out the electric wire 91 from the insertion hole 21d.

As described above, the connection device 1d for connecting the electric wire 91 includes the housing 2d, the conductive terminal portion 3d, the elastic member 4d, and the operation portion 5d. The terminal portion 3d is fixed to the housing 2d. The elastic member 4d is attached to the housing 2d, and presses and holds the electric wire 91 to the terminal portion 3d by a restoring force. The operation part 5d applies a force to the elastic member 4d so that it bends from the initial state to the untied state, and maintains the untied state. The operation part 5d has the 1st part 513d on which the restoring force of the elastic member 4d acts, and the 2nd part 514d which generates the reaction force with respect to this restoring force. The vector of the restoring force is used as the restoring force vector 81d, and the straight line connecting the first part 513d and the second part 514d is used as the reference line 82d.

When the elastic member 4d is in the non-wired state, the restoring force vector 81d substantially overlaps the reference line 82d, and the restoring force and the reaction force are balanced to maintain the position of the operating portion 5d, thereby maintaining the state of the elastic member 4d at Unconnected state. In addition, in the state where the electric wire 91 is inserted between the terminal portion 3d and the elastic member 4d in the non-connected state, the position of the operation portion 5d is changed, and the restoring force vector 81d deviates from the reference line 82d. Restoration force restores from the non-connection state, and shifts to the connection state in which the electric wire 91 is sandwiched between the terminal portion 3d.

By making the connection device 1d the above-mentioned structure, since there is no need to provide other structures such as a step part for locking the operation part 5d in the non-wired state, and a state release part for releasing the lock of the operation part 5d, The construction of the connecting device 1d can thus be simplified. In addition, unlike the case where the operation portion 5d is locked to the step portion of the housing 2d, it is possible to prevent locking failure due to wear of the step portion, etc., and to achieve a longer life of the connection device 1d.

As described above, in the connection device 1d, it is preferable to maintain the position of the operation portion 5d even in the state where the elastic member 4d in the non-wired state is further flexed. At this time, the direction of the force acting on the rotating portion 57d by the restoring force of the elastic member 4d is opposite to the direction of returning the operating portion 5d to the threaded state and the initial state. Thereby, the shape of the elastic member 4d in the state separated from the terminal part 3d can be maintained more stably.

In the connecting device 1d, preferably, the operating part 5d has a substantially disc-shaped or substantially cylindrical rotating part 57d, and the rotating part 57d is provided with a notch 571d in one part of the circumferential direction, and a notch 571d is provided in the other part of the circumferential direction. A protrusion 572d is provided. The casing 2d is provided with a recessed operation part placement part 26d, and the inner surface 261d of the operation part placement part 26d is a part of a substantially cylindrical surface. The rotating part 57d is placed on the operating part mounting part 26d, and is in contact with the elastic member 4d by a part of the notch part 571d (in the above example, the notch protruding part 573d), that is, the first part 513d, and is in contact with the elastic member 4d by the protruding part 572d. The second portion 514d is in contact with the inner surface 261d of the operation unit mounting portion 26d. Preferably, when the elastic member 4d moves toward the non-knotted state, the elastic member 4d is deflected by rotating the rotating part 57d in the first rotation direction (counterclockwise in the above example), and the restoring force vector 81d substantially overlaps with the reference line 82d to maintain the rotational position of the rotating portion 57d, thereby maintaining the state of the elastic member 4d in a non-threaded state. Also, it is preferable that when the electric wire 91 is wired, the restoring force vector 81d deviates from the reference by moving the rotating portion 57d toward the deep side of the insertion direction of the electric wire 91 (in the above example, the left side in FIG. 40 ). The thread 82d and the rotating part 57d are rotated in the second rotating direction (clockwise in the above example) opposite to the first rotating direction by the restoring force, and the elastic member 4d moves from the non-threaded state to the threaded state. Thereby, the transition of the elastic member 4d to the untied state, the maintenance in the untied state, and the transition from the untied state to the tied state can be realized with a simple structure.

In the connection device 1d described above, when the electric wire 91 is connected, by directly transmitting the force from the inserted electric wire 91 to the operation part 5d, the rotating part 57d is moved toward the deeper side of the insertion direction of the electric wire 91, so that the restoring force Vector 81d deviates from reference line 82d, but is not necessarily limited thereto. For example, force may be directly transmitted from the inserted electric wire 91 to the operation part 5d to move the rotating part 57d toward the deeper side in the insertion direction of the electric wire 91 . That is, in the connecting device 1d, it is preferable that when the electric wires 91 are connected, the force is directly or indirectly transmitted from the inserted electric wires 91 to the operation part 5d, so that the rotating part 57d goes deeper toward the insertion direction of the electric wires 91. sideways movement, thereby causing the restoring force vector 81d to deviate from the reference line 82d. Thereby, since the automatic connection of the connection electric wire 91 can be realized only by operation, such as insertion of the electric wire 91, the electric wire 91 can be easily connected to the connection apparatus 1d.

As described above, it is preferable that when the electric wire 91 is connected, the inserted electric wire 91 directly contacts the operation part 5d to change the position of the operation part 5d. Thereby, since the force of pushing the electric wire 91 is easily transmitted to the operation part 5d, automatic wiring of the electric wire 91 can be easily realized. In addition, since it is not necessary to provide a portion in contact with the electric wire 91 on the elastic member 4d, the shape of the elastic member 4d can be simplified.

As mentioned above, it is preferable that the operation part 5d has the wire receiving part 574d which directly contacts the front end of the wire 91 . In addition, preferably, the wire receiving portion 574d has a receiving surface 575d extending from the front end of the wire 91 to the surrounding. Thereby, the force of pushing in the electric wire 91 can be efficiently transmitted to the operation part 5d.

In the connection device 1d, the movable part 43d of the elastic member 4d is a wire contact part that directly contacts the wire 91 in the wire-connected state. Preferably, at least when the elastic member 4d moves from the non-wired state to the wired state, the moving path of the wire contact portion does not overlap with the moving area of the operating portion 5d. Thereby, it is possible to prevent the electric wire contact portion of the elastic member 4d from coming into contact with the operation portion 5d to hinder the movement of the operation portion 5d.

In the connection device 1d, it is preferable that a part of the operation part 5d (in the above example, the drive part 52d) protrudes from the housing 2d. Thereby, an operator can make fingertip etc. contact with drive part 52d, and can operate operation part 5d easily.

In the connection device 1d, it is preferable to provide a recognizable identification part (in the above example, the drive part 52d) that displays the state of the elastic member 4d. Thereby, the state of the elastic member 4d can be confirmed easily and rapidly.

The driving portion 52d may be configured to protrude from the housing 2d when the elastic member 4d is in the non-wired state, and to be located in the housing 2d when the elastic member 4d is in the wired state. In this case, in the non-wired state, the operation portion 5d can be easily operated without using a tool such as a flat-head screwdriver. In addition, it is possible to prevent erroneous operation of the operation portion 5d in the wired state. In addition, whether or not the elastic member 4d is in a non-wired state can be easily and quickly confirmed by identifying whether or not the driving portion 52d protrudes from the casing 2d.

In the connecting device 1d, preferably, the elastic member 4d is a leaf spring. Thereby, the structure of the connecting device 1d can be further simplified.

Various changes can be made in the above-mentioned connecting devices 1, 1a to 1d.

For example, in the connecting devices 1, 1a-1d, the elastic members 4, 4a-4d are not limited to leaf springs, and may have other structures (for example, coil springs).

In the connection device 1, as mentioned above, although the driving part 52 of the operation part 5 has the function of the identification part, other parts of the operation part 5, or parts other than the operation part 5, can also be identifiable for displaying the state of the elastic member 4. the identification section. Also in the connecting devices 1a-1d, the part different from the above example may also be the identification part. Furthermore, the identification part can also be omitted in the connecting devices 1, 1a-1d.

In the connection device 1, substantially the same as the connection device 1a shown in FIG. 22, the connection of the electric wires 91 does not need to be performed by the above-mentioned automatic connection, for example, it can also be operated by the operator using fingertips or tools. part 5 to move the operation part 5 to execute. Specifically, the operator presses the driving part 52 of the operation part 5 on the right side of FIG. The force acts on the cam portion 51 with a clockwise rotational moment. As a result, even if the operator does not further apply force to the driving part 52, the operating part 5 still rotates clockwise, and the connecting device 1 moves to the thread-connecting state shown in FIG. 12 .

It is also roughly the same in the connecting device 1b. The operator can also use fingertips or tools to touch the elastic member 4b shown in FIG. The threaded state rotates clockwise, and moves toward the threaded state shown in FIG. 29 . It is also roughly the same in the connection device 1c. The operator can also use fingertips or tools to contact the release part 6c shown in FIG. The non-knotting state moves to the right, and moves toward the knitting state shown in Figure 35. It is also roughly the same in the connection device 1d. The operator can also use fingertips or tools to touch the operation part 5d shown in FIG. The shown non-knotting state rotates clockwise, and moves toward the knitting state shown in Figure 41.

In the connection device 1 , the operation part 5 does not necessarily have to protrude from the housing 2 , and the entire operation part 5 can also be arranged inside the housing 2 . The same is true in connection devices 1a to 1d.

In the connection device 1, the moving path of the electric wire contact portion 45 of the elastic member 4 may also overlap the moving area of the operation portion 5 in the thickness direction. In addition, the elastic member 4 does not need to be in direct contact with the electric wire 91 in the wired state, but may indirectly contact the electric wire 91 through other members or the like. The same is true in connection devices 1a to 1d.

In the connecting device 1, the shape of the receiving surface 531 of the wire receiving portion 53 can also be changed into various shapes. In addition, the electric wire 91 inserted into the housing 2 does not necessarily have to contact the operation part 5 at the front end, but can also contact the operation part 5 through other parts (such as a covered part or a crimping terminal) like the connection device 1a. The electric wire 91 does not need to be in direct contact with the operation part 5, but can also indirectly contact the operation part 5 through other members such as the elastic member 4 to change the position of the operation part 5 like the connection device 1b. In addition, in the operation part 5, the electric wire receiving part 53 can also be omitted. The same applies to the wire receiving portion 44b of the connecting device 1b and the wire receiving portion 574d of the connecting device 1d.

In the connection device 1, the rotation direction of the operation part 5 when moving from the initial state to the non-connection state and the rotation direction of the operation part 5 when moving from the non-connection state to the connection state do not necessarily need to be opposite directions, and can also be for the same direction. In addition, when moving from the non-threaded state to the threaded state, it is not necessary to rotate the operation part 5. For example, the elastic member 4 can be moved from the non-threaded state by sliding the operation part 5 to the side like the connection device 1c. Move to the tied state.

The above-mentioned connecting devices 1, 1a-1d can be utilized in various devices for connecting electric wires. For example, the connection device 1 can also be used for a relay socket, an operation switch, or the like.

The configurations of the above-described embodiments and modifications may be appropriately combined as long as they do not contradict each other.

While the invention has been described and illustrated in detail, the description is by way of illustration and not limitation. Therefore, as long as it does not deviate from the scope of the essence of the present invention, it can be said that there are various deformation|transformation and aspects.

1. 1a~1d: connecting device 2. 2a~2d: housing 3. 3a~3d: terminal part 4. 4a~4d: Elastic member 5. 5a~5d: operation department 6c, 46b: Release part 21, 21a~21d: insertion hole 22: Elastic member support part 24, 24a, 24b, 24c: axis of rotation 25c: Guide surface (inner surface) 26d: Operating part loading part 27d: guide surface 28a, 28b: stopper 32: Terminal connection part 41, 41a~41d: bending part 42, 42a~42d: fixed part 43, 43a~43d: movable part 44b, 53, 574d: electric wire receiving part 45: Wire contact part 51, 51a, 51b: cam portion 52, 52a, 52c, 52d: drive unit 54, 54a, 54b: bearing 55a: identification part 56c: advance and retreat 57d: rotating part 61c: Release the lower part 62c: Release the upper part 81, 81a~81d: restoring force vector 82, 82a~82d: baseline 85~87: point 91: wire 92: Tools 93: fingertips 231a, 231b, 232a: through holes 261d: (of the operating part placement part) inner surface 431b: cutting the raised part 432c: first inclined part 433c: second inclined part 441b, 531, 575d, 611c: receiving surface 511: long side 512: short side 513, 513a~513d: the first part 514, 514a~514d: the second part 515b: convex part 521: hole 521a: concave part 522a: convex part 571d: Gap 572d: protrusion 573d: Notch protrusion

Fig. 1 is a perspective view of a connecting device according to a first embodiment. Fig. 2 is a longitudinal sectional view of the connecting device. Fig. 3 is an enlarged sectional view of the vicinity of the operation part. Fig. 4 is an enlarged sectional view of the vicinity of the operation part. Fig. 5 is a perspective view of the connecting device. Fig. 6 is a longitudinal sectional view of the connecting device. Fig. 7 is an enlarged sectional view of the vicinity of the operation part. Fig. 8 is a graph showing the relationship between the moving distance of the operating portion and the rotational torque. Fig. 9 is a longitudinal sectional view of the connecting device. Fig. 10 is an enlarged sectional view of the vicinity of the operation part. Fig. 11 is a perspective view of the connecting device. Fig. 12 is a longitudinal sectional view of the connecting device. Fig. 13 is an enlarged sectional view of the vicinity of the operation part. Fig. 14 is an enlarged sectional view of the vicinity of the operation part. Fig. 15 is a graph showing the relationship between the moving distance of the operating portion and the rotational torque. Fig. 16 is an enlarged cross-sectional view of the vicinity of the operation portion of the connection device according to the second embodiment. Fig. 17 is a longitudinal sectional view of the connecting device. Fig. 18 is a longitudinal sectional view of the connecting device. Fig. 19 is a longitudinal sectional view of the connecting device. Fig. 20 is a longitudinal sectional view of the connecting device. Fig. 21 is a longitudinal sectional view of the connecting device. Fig. 22 is a longitudinal sectional view of the connecting device. Fig. 23 is an enlarged cross-sectional view of the vicinity of the operation portion of the connecting device according to the third embodiment. Fig. 24 is a plan view showing the operation part and the elastic member. Fig. 25 is a longitudinal sectional view of the connecting device. Fig. 26 is a longitudinal sectional view of the connecting device. Fig. 27 is a longitudinal sectional view of the connecting device. Fig. 28 is a longitudinal sectional view of the connecting device. Fig. 29 is a longitudinal sectional view of the connecting device. Fig. 30 is an enlarged cross-sectional view of the vicinity of the operation portion of the connection device according to the fourth embodiment. Fig. 31 is a longitudinal sectional view of the connecting device. Fig. 32 is a longitudinal sectional view of the connecting device. Fig. 33 is a longitudinal sectional view of the connecting device. Fig. 34 is a longitudinal sectional view of the connecting device. Fig. 35 is a longitudinal sectional view of the connecting device. Fig. 36 is an enlarged cross-sectional view of the vicinity of the operation portion of the connecting device according to the fifth embodiment. Fig. 37 is a longitudinal sectional view of the connecting device. Fig. 38 is a longitudinal sectional view of the connecting device. Fig. 39 is a longitudinal sectional view of the connecting device. Fig. 40 is a longitudinal sectional view of the connecting device. Fig. 41 is a longitudinal sectional view of the connecting device.

2: Shell

3: Terminal part

4: elastic member

5: Operation department

24: Rotation axis

43: Movable part

51: cam part

52: drive unit

53: Wire receiving part

81: Resilience Vectors

82: baseline

513: the first part

514: the second part

Claims (17)

A connection device, which is connected to a power supply line, includes: a casing; a conductive terminal portion fixed to the casing; an elastic member mounted on the casing, and presses the wire by restoring force Clamped on the above-mentioned terminal part; and an operation part, which applies a force to the above-mentioned elastic member to make it deflect from the initial state toward the unconnected state and maintain the above-mentioned unconnected state; the above-mentioned operation part is provided with the above-mentioned For the first part where the restoring force acts and the second part where the reaction force against the aforementioned restoring force is generated, the vector of the aforementioned restoring force is taken as the restoring force vector, and the straight line connecting the aforementioned first part and the aforementioned second part is taken as a reference line , when the above-mentioned elastic member is in the above-mentioned non-wired state, by the above-mentioned restoring force vector approximately overlapping with the above-mentioned reference line and making the above-mentioned restoring force and the above-mentioned reaction force balance each other, so as to maintain the position of the above-mentioned operation part, and the above-mentioned elastic member The state is maintained in the above-mentioned non-wire state, and when the above-mentioned electric wire is inserted between the above-mentioned terminal part and the above-mentioned elastic member in the above-mentioned non-wire state, the position of the above-mentioned operation part is changed, and the above-mentioned restoring force vector deviates from the above-mentioned reference line, by Here, the elastic member is restored from the non-connection state by the restoring force, and moves to a connection state in which the electric wire is sandwiched between the terminal portion. The connection device according to claim 1, wherein the position of the operation part is maintained even in a state where the elastic member in the non-connected state is further flexed. The connection device according to claim 1 or 2, wherein the operation part is provided with a cam part that rotates around a rotating shaft, and the cam part is in contact with the elastic member at the first part, and is in contact with the elastic member at the second part, that is, The bearing is in contact with the rotating shaft, and when the elastic member moves toward the non-knotted state, the cam portion rotates, thereby increasing the distance between the first portion and the rotating shaft to bend the elastic member, and By substantially overlapping the restoring force vector with the reference line, the rotational position of the operating portion is maintained, thereby maintaining the state of the elastic member in the non-wired state. The connection device according to claim 3, wherein when the above-mentioned electric wire is connected, the position of the above-mentioned operation part is changed by directly or indirectly transmitting the force from the inserted above-mentioned electric wire to the above-mentioned operation part, so that the above-mentioned restoring force The vector deviates from the reference line above. The connecting device according to claim 4, wherein when the electric wires are connected, the inserted electric wires directly contact the operation part to change the position of the operation part. The connecting device according to claim 5, wherein the operation part has a wire receiving part directly in contact with the front end of the wire, and the wire receiving part has a receiving surface extending from the front end of the wire toward the surroundings. The connecting device according to claim 4, wherein when the electric wires are connected, the inserted electric wires directly contact the elastic member to deform the elastic member, whereby force is applied to the operation part via the elastic member, To change the position of the above operation part. The connecting device according to claim 7, wherein the elastic member is provided with a wire receiving portion directly in contact with the front end of the wire, and a release portion extending from the wire receiving portion toward the operation portion, The electric wire receiving portion has a receiving surface extending from the front end of the electric wire toward the periphery, and the elastic member is deformed by pressing the electric wire toward the deep side of the insertion direction of the electric wire, so that the release portion and the above-mentioned elastic member are deformed. The operation part contacts and applies force to rotate the above-mentioned cam part. The connecting device according to claim 1 or 2, wherein the casing has a guide surface extending linearly, the elastic member extends along the guide surface, and the operation part has an advancing and retreating part, and the advancing and retreating part is located on the above-mentioned Between the elastic member and the above-mentioned guide surface, on the one hand, the above-mentioned first part and the above-mentioned second part are respectively in contact with the above-mentioned elastic member and the above-mentioned guide surface, and on the other hand, it moves linearly along the predetermined advance and retreat direction. The above-mentioned elastic member and the above-mentioned guide The distance between the guide surfaces decreases from one side of the advancing and retreating direction to the other side. When the elastic member moves toward the non-connected state, the elastic member moves from the advancing and retreating portion to the above mentioned direction in the advancing and retreating direction. One side moves toward the other side and deflects, and at a position in contact with the first part, the elastic member is substantially parallel to the guide surface, and the restoring force vector is substantially overlapped with the reference line, whereby , maintain the position of the above-mentioned advance and retreat direction of the above-mentioned operation part, and maintain the state of the above-mentioned elastic member in the above-mentioned non-connection state, when the above-mentioned electric wire is connected, by the above-mentioned operation part from the above-mentioned other side of the above-mentioned advance and retreat direction to the above-mentioned When one side moves, the restoring force vector deviates from the reference line, and the elastic member moves from the non-threaded state to the threaded state due to the restoring force. The connecting device according to claim 9, wherein when the above-mentioned electric wires are connected, the force is directly or indirectly transmitted from the inserted electric wires to the above-mentioned operation part, and the above-mentioned The operation part moves from the other side of the advancing and retreating direction to the one side, and the restoring force vector deviates from the reference line. The connecting device according to claim 1 or 2, wherein the above-mentioned operating part has a substantially disc-shaped or substantially cylindrical rotating part, and the rotating part is provided with a notch in one part of the circumferential direction, and the other part in the circumferential direction A protruding part is provided, and a concave operation part placement part is provided on the above-mentioned housing. The inner surface of the operation part placement part is a part of a substantially cylindrical surface, and the above-mentioned rotating part is placed on the above-mentioned operation part placement part. , and contact the above-mentioned elastic member with the above-mentioned first part that is a part of the above-mentioned notch part, and contact with the above-mentioned inner surface of the above-mentioned operation part mounting part with the above-mentioned protrusion part that is the above-mentioned second part, when the above-mentioned elastic member is toward the above-mentioned When moving in the non-tie state, the elastic member is deflected by the rotation of the rotation part in the first rotation direction, and the rotation position of the rotation part is maintained by making the restoring force vector substantially overlap the reference line, and the rotation position of the rotation part is maintained. The state of the elastic member is maintained in the above-mentioned non-tie state, and when the above-mentioned electric wire is connected, by the movement of the above-mentioned rotating part toward the deep side of the insertion direction of the above-mentioned electric wire, the above-mentioned restoring force vector deviates from the above-mentioned reference line, and the above-mentioned rotating part is moved by the above-mentioned The restoring force rotates in a second rotation direction opposite to the first rotation direction, and the elastic member moves from the non-threaded state to the threaded state. The connection device according to claim 11, wherein when the wire is connected, the rotating portion moves toward the deeper side of the insertion direction of the wire by directly or indirectly transmitting force from the inserted wire to the operation portion. , the above-mentioned restoring force vector deviates from the above-mentioned baseline. The connection device according to claim 1 or 2, wherein the elastic member is provided with a wire contact portion that directly contacts the electric wire in the above-mentioned connected state, at least when the above-mentioned elastic member moves from the above-mentioned non-connected state to the above-mentioned connected state, the above-mentioned The movement path of the electric wire contact part does not overlap with the movement area of the above-mentioned operation part. The connecting device according to claim 1 or 2, wherein a part of the operation part protrudes from the housing. The connecting device according to claim 1 or 2, wherein when the elastic member is in the non-connected state, a part of the operation part protrudes from the housing, and when the elastic member is in the connected state, the part of the operation part A part is located in the above-mentioned housing. The connecting device according to claim 1 or 2, wherein an identifiable identification part showing the state of the elastic member is provided. The connecting device according to claim 1 or 2, wherein the above-mentioned elastic member is a leaf spring.

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